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Diffstat (limited to '')
463 files changed, 65802 insertions, 1782 deletions
diff --git a/.gitignore b/.gitignore index 661df346..3bcf7b3f 100644 --- a/.gitignore +++ b/.gitignore @@ -1,12 +1,4 @@ -# Files I don't care to see in git-status/commit -/cgit -cgit.conf -CGIT-CFLAGS -VERSION -cgitrc.5 -cgitrc.5.fo -cgitrc.5.html -cgitrc.5.pdf -cgitrc.5.xml -*.o -*.d +/build +/clone +/git +/trash diff --git a/.gitmodules b/.gitmodules deleted file mode 100644 index 5c6ecb4f..00000000 --- a/.gitmodules +++ /dev/null @@ -1,3 +0,0 @@ -[submodule "git"] - url = https://git.kernel.org/pub/scm/git/git.git - path = git diff --git a/TOUR.7 b/TOUR.7 new file mode 100644 index 00000000..2e77ffaa --- /dev/null +++ b/TOUR.7 @@ -0,0 +1,29 @@ +.Dd December 28, 2020 +.Dt TOUR 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm tour +.Nd things that are here +. +.Sh FILES +.Bl -tag -width Ds +.It Pa home/ +.Dq dotfiles +.It Pa bin/ +utilities of varying utility +.It Pa bin/dash/ +dash patched for interactive use +.It Pa doc/rfc/ +scripts for reading IETF RFCs +.It Pa doc/zlib/ +zlib documentation ported to +.Xr mdoc 7 +.It Pa www/ +sources for causal.agency sites +.It Pa www/git.causal.agency/cgit/ +patched cgit +.It Pa port/wcwidth/ +.Xr wcwidth 3 +replacement for macOS +.El diff --git a/agpl.c b/agpl.c new file mode 100644 index 00000000..929730c1 --- /dev/null +++ b/agpl.c @@ -0,0 +1,20 @@ +/* Copyright (C) 2021 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <err.h> +#include <stdio.h> +#include <stdlib.h> +#include <sysexits.h> diff --git a/bin/.gitignore b/bin/.gitignore new file mode 100644 index 00000000..be0a8004 --- /dev/null +++ b/bin/.gitignore @@ -0,0 +1,37 @@ +*.html +*.o +beef +bibsort +bit +bri +c +config.mk +dtch +ever +fbatt +fbclock +freecell +glitch +hilex +htagml +htmltags +modem +mtags +nudge +order +pbd +pngo +psf2png +psfed +ptee +relay +scheme +scheme.h +shotty +sup +tags +title +typer +up +when +xx diff --git a/bin/LICENSE b/bin/LICENSE new file mode 100644 index 00000000..dba13ed2 --- /dev/null +++ b/bin/LICENSE @@ -0,0 +1,661 @@ + GNU AFFERO GENERAL PUBLIC LICENSE + Version 3, 19 November 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU Affero General Public License is a free, copyleft license for +software and other kinds of works, specifically designed to ensure +cooperation with the community in the case of network server software. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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Limitation of Liability. + + IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS +THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY +GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE +USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF +DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD +PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), +EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF +SUCH DAMAGES. + + 17. Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + <one line to give the program's name and a brief idea of what it does.> + Copyright (C) <year> <name of author> + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU Affero General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. + +Also add information on how to contact you by electronic and paper mail. + + If your software can interact with users remotely through a computer +network, you should also make sure that it provides a way for users to +get its source. For example, if your program is a web application, its +interface could display a "Source" link that leads users to an archive +of the code. There are many ways you could offer source, and different +solutions will be better for different programs; see section 13 for the +specific requirements. + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU AGPL, see +<http://www.gnu.org/licenses/>. diff --git a/bin/Makefile b/bin/Makefile new file mode 100644 index 00000000..14ad94eb --- /dev/null +++ b/bin/Makefile @@ -0,0 +1,153 @@ +PREFIX ?= ~/.local +MANDIR ?= ${PREFIX}/share/man + +LIBS_PREFIX ?= /usr/local +CFLAGS += -I${LIBS_PREFIX}/include +LDFLAGS += -L${LIBS_PREFIX}/lib + +CFLAGS += -Wall -Wextra -Wpedantic -Wno-gnu-case-range + +BINS += beef +BINS += bibsort +BINS += bit +BINS += c +BINS += dtch +BINS += glitch +BINS += hilex +BINS += htagml +BINS += modem +BINS += mtags +BINS += nudge +BINS += order +BINS += pbd +BINS += pngo +BINS += psf2png +BINS += ptee +BINS += scheme +BINS += shotty +BINS += sup +BINS += title +BINS += up +BINS += when +BINS += xx + +BSD += ever + +GAMES += freecell + +LINUX += bri +LINUX += fbatt +LINUX += fbclock +LINUX += psfed + +TLS += relay +TLS += typer + +MANS = ${BINS:%=man1/%.1} +MANS.BSD = ${BSD:%=man1/%.1} +MANS.GAMES = ${GAMES:%=man6/%.6} +MANS.LINUX = ${LINUX:%=man1/%.1} +MANS.TLS = ${TLS:%=man1/%.1} + +LDLIBS.dtch = -lutil +LDLIBS.fbclock = -lz +LDLIBS.freecell = -lcurses +LDLIBS.glitch = -lz +LDLIBS.modem = -lutil +LDLIBS.pngo = -lz +LDLIBS.ptee = -lutil +LDLIBS.relay = -ltls +LDLIBS.scheme = -lm +LDLIBS.title = -lcurl +LDLIBS.typer = -ltls + +ALL ?= meta any + +-include config.mk + +all: ${ALL} + +meta: .gitignore tags + +any: ${BINS} + +bsd: ${BSD} + +games: ${GAMES} + +linux: ${LINUX} + +tls: ${TLS} + +IGNORE = *.o *.html +IGNORE += ${BINS} ${BSD} ${GAMES} ${LINUX} ${TLS} +IGNORE += scheme.h tags htmltags + +.gitignore: Makefile + echo config.mk '${IGNORE}' | tr ' ' '\n' | sort > $@ + +tags: *.[chly] + ctags -w *.[chly] + +clean: + rm -f ${IGNORE} + +install: ${ALL:%=install-%} + +install-meta: + install -d ${PREFIX}/bin ${MANDIR}/man1 + +install-any: install-meta ${BINS} ${MANS} + install ${BINS} ${PREFIX}/bin + install -m 644 ${MANS} ${MANDIR}/man1 + +install-bsd: install-meta ${BSD} ${MANS.BSD} + install ${BSD} ${PREFIX}/bin + install -m 644 ${MANS.BSD} ${MANDIR}/man1 + +install-games: install-meta ${GAMES} ${MANS.GAMES} + install ${GAMES} ${PREFIX}/bin + install -m 644 ${MANS.GAMES} ${MANDIR}/man6 + +install-linux: install-meta ${LINUX} ${MANS.LINUX} + install ${LINUX} ${PREFIX}/bin + install -m 644 ${MANS.LINUX} ${MANDIR}/man1 + +install-tls: install-meta ${TLS} ${MANS.TLS} + install ${TLS} ${PREFIX}/bin + install -m 644 ${MANS.TLS} ${MANDIR}/man1 + +uninstall: + rm -f ${BINS:%=${PREFIX}/bin/%} ${MANS:%=${MANDIR}/%} + rm -f ${BSD:%=${PREFIX}/bin/%} ${MANS.BSD:%=${MANDIR}/%} + rm -f ${GAMES:%=${PREFIX}/bin/%} ${MANS.GAMES:%=${MANDIR}/%} + rm -f ${LINUX:%=${PREFIX}/bin/%} ${MANS.LINUX:%=${MANDIR}/%} + rm -f ${TLS:%=${PREFIX}/bin/%} ${MANS.TLS:%=${MANDIR}/%} + +.SUFFIXES: .pl + +.c: + ${CC} ${CFLAGS} ${LDFLAGS} $< ${LDLIBS.$@} -o $@ + +.o: + ${CC} ${LDFLAGS} $< ${LDLIBS.$@} -o $@ + +.pl: + cp -f $< $@ + chmod a+x $@ + +OBJS.hilex = c11.o hilex.o make.o mdoc.o sh.o + +hilex: ${OBJS.hilex} + ${CC} ${LDFLAGS} ${OBJS.$@} ${LDLIBS.$@} -o $@ + +${OBJS.hilex}: hilex.h + +fbatt.o fbclock.o: scheme.h + +psf2png.o scheme.o: png.h + +scheme.h: scheme + ./scheme -c > $@ + +include html.mk diff --git a/bin/README.7 b/bin/README.7 new file mode 100644 index 00000000..0ff46eab --- /dev/null +++ b/bin/README.7 @@ -0,0 +1,87 @@ +.Dd April 26, 2021 +.Dt BIN 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm bin +.Nd various utilities +. +.Sh DESCRIPTION +Various tools primarily targeting +Darwin, +.Fx +and +.Ox . +Some tools target Linux. +. +.Pp +.Bl -tag -width "fbclock(1)" -compact +.It Xr beef 1 +Befunge-93 interpreter +.It Xr bibsort 1 +reformat bibliography +.It Xr bit 1 +calculator +.It Xr bri 1 +backlight brightness control +.It Xr c 1 +run C statements +.It Xr dtch 1 +detached sessions +.It Xr ever 1 +watch files +.It Xr fbatt 1 +framebuffer battery indicator +.It Xr fbclock 1 +framebuffer clock +.It Xr freecell 6 +patience game +.It Xr glitch 1 +PNG glitcher +.It Xr hilex 1 +syntax highlighter +.It Xr htagml 1 +tags HTMLizer +.It Xr modem 1 +fixed baud rate wrapper +.It Xr mtags 1 +miscellaneous tags +.It Xr nudge 1 +terminal vibrator +.It Xr order 1 +operator precedence +.It Xr pbd 1 +macOS pasteboard daemon +.It Xr pngo 1 +PNG optimizer +.It Xr psf2png 1 +PSF2 to PNG renderer +.It Xr psfed 1 +PSF2 font editor +.It Xr ptee 1 +tee for PTYs +.It Xr relay 1 +IRC relay bot +.It Xr scheme 1 +color scheme +.It Xr shotty 1 +terminal capture +.It Xr sup 1 +single-use passwords +.It Xr title 1 +page titles +.It Xr up 1 +upload file +.It Xr when 1 +date calculator +.It Xr xx 1 +hexdump +.El +. +.Pp +One piece of reused code. +.Pp +.Bl -tag -width "png(3)" -compact +.It Xr png 3 +basic PNG output +.El diff --git a/bin/beef.c b/bin/beef.c new file mode 100644 index 00000000..b2579b73 --- /dev/null +++ b/bin/beef.c @@ -0,0 +1,141 @@ +/* Copyright (C) 2019 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <err.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sysexits.h> +#include <time.h> + +enum { + Cols = 80, + Rows = 25, +}; +static char page[Rows][Cols]; + +static char get(int y, int x) { + if (y < 0 || y >= Rows) return 0; + if (x < 0 || x >= Cols) return 0; + return page[y][x]; +} +static void put(int y, int x, char v) { + if (y < 0 || y >= Rows) return; + if (x < 0 || x >= Cols) return; + page[y][x] = v; +} + +enum { StackLen = 1024 }; +static long stack[StackLen]; +static size_t top = StackLen; + +static void push(long val) { + if (!top) errx(EX_SOFTWARE, "stack overflow"); + stack[--top] = val; +} +static long pop(void) { + if (top == StackLen) return 0; + return stack[top++]; +} + +static struct { + int y, x; + int dy, dx; +} pc = { .dx = 1 }; + +static void inc(void) { + pc.y += pc.dy; + pc.x += pc.dx; + if (pc.y == -1) pc.y += Rows; + if (pc.x == -1) pc.x += Cols; + if (pc.y == Rows) pc.y -= Rows; + if (pc.x == Cols) pc.x -= Cols; +} + +static bool string; + +static bool step(void) { + char ch = page[pc.y][pc.x]; + + if (ch == '"') { + string ^= true; + } else if (string) { + push(ch); + inc(); + return true; + } + + if (ch == '?') ch = "><^v"[rand() % 4]; + + long x, y, v; + switch (ch) { + break; case '+': push(pop() + pop()); + break; case '-': y = pop(); x = pop(); push(x - y); + break; case '*': push(pop() * pop()); + break; case '/': y = pop(); x = pop(); push(x / y); + break; case '%': y = pop(); x = pop(); push(x % y); + break; case '!': push(!pop()); + break; case '`': y = pop(); x = pop(); push(x > y); + break; case '>': pc.dy = 0; pc.dx = +1; + break; case '<': pc.dy = 0; pc.dx = -1; + break; case '^': pc.dy = -1; pc.dx = 0; + break; case 'v': pc.dy = +1; pc.dx = 0; + break; case '_': pc.dy = 0; pc.dx = (pop() ? -1 : +1); + break; case '|': pc.dx = 0; pc.dy = (pop() ? -1 : +1); + break; case ':': x = pop(); push(x); push(x); + break; case '\\': y = pop(); x = pop(); push(y); push(x); + break; case '$': pop(); + break; case '.': printf("%ld ", pop()); fflush(stdout); + break; case ',': printf("%c", (char)pop()); fflush(stdout); + break; case '#': inc(); + break; case 'g': y = pop(); x = pop(); push(get(y, x)); + break; case 'p': y = pop(); x = pop(); v = pop(); put(y, x, v); + break; case '&': x = EOF; scanf("%ld", &x); push(x); + break; case '~': push(getchar()); + break; case '@': return false; + break; default: if (ch >= '0' && ch <= '9') push(ch - '0'); + } + + inc(); + return true; +} + +int main(int argc, char *argv[]) { + srand(time(NULL)); + memset(page, ' ', sizeof(page)); + + FILE *file = stdin; + if (argc > 1) { + file = fopen(argv[1], "r"); + if (!file) err(EX_NOINPUT, "%s", argv[1]); + } + + int y = 0; + char *line = NULL; + size_t cap = 0; + while (y < Rows && 0 < getline(&line, &cap, file)) { + for (int x = 0; x < Cols; ++x) { + if (line[x] == '\n' || !line[x]) break; + page[y][x] = line[x]; + } + y++; + } + free(line); + + while (step()); + return pop(); +} diff --git a/bin/bibsort.pl b/bin/bibsort.pl new file mode 100644 index 00000000..0d132c19 --- /dev/null +++ b/bin/bibsort.pl @@ -0,0 +1,68 @@ +#!/usr/bin/env perl +use strict; +use warnings; + +while (<>) { + print; + last if /^[.]Sh STANDARDS$/; +} + +my ($ref, @refs); +while (<>) { + next if /^[.](Bl|It|$)/; + last if /^[.]El$/; + if (/^[.]Rs$/) { + $ref = {}; + } elsif (/^[.]%(.) (.*)/) { + $ref->{$1} = [] unless $ref->{$1}; + push @{$ref->{$1}}, $2; + } elsif (/^[.]Re$/) { + push @refs, $ref; + } else { + print; + } +} + +sub byLast { + my ($af, $al) = split /\s(\S+)(,.*)?$/, $a; + my ($bf, $bl) = split /\s(\S+)(,.*)?$/, $b; + ($al // $af) cmp ($bl // $bf) || $af cmp $bf; +} + +foreach $ref (@refs) { + @{$ref->{A}} = sort byLast @{$ref->{A}}; + @{$ref->{Q}} = sort @{$ref->{Q}} if $ref->{Q}; + if ($ref->{N} && $ref->{N}[0] =~ /RFC/) { + $ref->{R} = $ref->{N}; + delete $ref->{N}; + } + if ($ref->{R} && $ref->{R}[0] =~ /RFC (\d+)/ && !$ref->{U}) { + $ref->{U} = ["https://tools.ietf.org/html/rfc${1}"]; + } +} + +sub byAuthor { + local ($a, $b) = ($a->{A}[0], $b->{A}[0]); + byLast(); +} + +{ + local ($,, $\) = (' ', "\n"); + print '.Bl', '-item'; + foreach $ref (sort byAuthor @refs) { + print '.It'; + print '.Rs'; + foreach my $key (qw(A T B I J R N V U P Q C D O)) { + next unless $ref->{$key}; + foreach (@{$ref->{$key}}) { + print ".%${key}", $_; + } + } + print '.Re'; + } + print '.El'; +} + +while (<>) { + print; +} diff --git a/bin/bit.y b/bin/bit.y new file mode 100644 index 00000000..ab310492 --- /dev/null +++ b/bin/bit.y @@ -0,0 +1,202 @@ +/* Copyright (C) 2019 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +%{ + +#include <ctype.h> +#include <err.h> +#include <inttypes.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <sysexits.h> + +#define MASK(b) ((1ULL << (b)) - 1) + +#define YYSTYPE uint64_t + +static int yylex(void); +static void yyerror(const char *str); +static void print(uint64_t val); + +static uint64_t vars[128]; + +%} + +%token Int Var + +%left '$' +%right '=' +%left '|' +%left '^' +%left '&' +%left Shl Shr Sar +%left '+' '-' +%left '*' '/' '%' +%right '~' +%left 'K' 'M' 'G' 'T' + +%% + +stmt: + | stmt expr '\n' { print(vars['_'] = $2); printf("\n"); } + | stmt expr ',' { print(vars['_'] = $2); } + | stmt '\n' + ; + +expr: + Int + | Var { $$ = vars[$1]; } + | '(' expr ')' { $$ = $2; } + | expr 'K' { $$ = $1 << 10; } + | expr 'M' { $$ = $1 << 20; } + | expr 'G' { $$ = $1 << 30; } + | expr 'T' { $$ = $1 << 40; } + | '~' expr { $$ = ~$2; } + | '&' expr %prec '~' { $$ = MASK($2); } + | '+' expr %prec '~' { $$ = +$2; } + | '-' expr %prec '~' { $$ = -$2; } + | expr '*' expr { $$ = $1 * $3; } + | expr '/' expr { $$ = $1 / $3; } + | expr '%' expr { $$ = $1 % $3; } + | expr '+' expr { $$ = $1 + $3; } + | expr '-' expr { $$ = $1 - $3; } + | expr Shl expr { $$ = $1 << $3; } + | expr Shr expr { $$ = $1 >> $3; } + | expr Sar expr { $$ = (int64_t)$1 >> $3; } + | expr '&' expr { $$ = $1 & $3; } + | expr '^' expr { $$ = $1 ^ $3; } + | expr '|' expr { $$ = $1 | $3; } + | Var '=' expr { $$ = vars[$1] = $3; } + | expr '$' { $$ = $1; } + ; + +%% + +static int lexInt(uint64_t base) { + yylval = 0; + for (int ch; EOF != (ch = getchar());) { + uint64_t digit = base; + if (ch == '_') { + continue; + } else if (isdigit(ch)) { + digit = ch - '0'; + } else if (isxdigit(ch)) { + digit = 0xA + toupper(ch) - 'A'; + } + if (digit >= base) { + ungetc(ch, stdin); + return Int; + } + yylval *= base; + yylval += digit; + } + return Int; +} + +static int yylex(void) { + int ch; + while (isblank(ch = getchar())); + if (ch == '\'') { + yylval = 0; + while (EOF != (ch = getchar()) && ch != '\'') { + yylval <<= 8; + yylval |= ch; + } + return Int; + } else if (ch == '0') { + ch = getchar(); + if (ch == 'b') { + return lexInt(2); + } else if (ch == 'x') { + return lexInt(16); + } else { + ungetc(ch, stdin); + return lexInt(8); + } + } else if (isdigit(ch)) { + ungetc(ch, stdin); + return lexInt(10); + } else if (ch == '_' || islower(ch)) { + yylval = ch; + return Var; + } else if (ch == '<') { + char ne = getchar(); + if (ne == '<') { + return Shl; + } else { + ungetc(ne, stdin); + return ch; + } + } else if (ch == '-' || ch == '>') { + char ne = getchar(); + if (ne == '>') { + return (ch == '-' ? Sar : Shr); + } else { + ungetc(ne, stdin); + return ch; + } + } else { + return ch; + } +} + +static void yyerror(const char *str) { + warnx("%s", str); +} + +static const char *Codes[128] = { + "NUL", "SOH", "STX", "ETX", "EOT", "ENQ", "ACK", "BEL", + "BS", "HT", "NL", "VT", "NP", "CR", "SO", "SI", + "DLE", "DC1", "DC2", "DC3", "DC4", "NAK", "SYN", "ETB", + "CAN", "EM", "SUB", "ESC", "FS", "GS", "RS", "US", + [127] = "DEL", +}; + +static void print(uint64_t val) { + int bits = val > UINT32_MAX ? 64 + : val > UINT16_MAX ? 32 + : val > UINT8_MAX ? 16 + : 8; + printf("0x%0*"PRIX64" %"PRId64"", bits >> 2, val, (int64_t)val); + if (bits == 8) { + char bin[9] = {0}; + for (int i = 0; i < 8; ++i) { + bin[i] = '0' + (val >> (7 - i) & 1); + } + printf(" %#"PRIo64" 0b%s", val, bin); + } + if (val < 128) { + if (isprint(val)) printf(" '%c'", (char)val); + if (Codes[val]) printf(" %s", Codes[val]); + } + if (val) { + if (!(val & MASK(40))) { + printf(" %"PRIu64"T", val >> 40); + } else if (!(val & MASK(30))) { + printf(" %"PRIu64"G", val >> 30); + } else if (!(val & MASK(20))) { + printf(" %"PRIu64"M", val >> 20); + } else if (!(val & MASK(10))) { + printf(" %"PRIu64"K", val >> 10); + } + } + printf("\n"); +} + +int main(void) { + while (yyparse()); +} diff --git a/bin/bri.c b/bin/bri.c new file mode 100644 index 00000000..81df2995 --- /dev/null +++ b/bin/bri.c @@ -0,0 +1,85 @@ +/* Copyright (C) 2017 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <dirent.h> +#include <err.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sysexits.h> +#include <unistd.h> + +typedef unsigned uint; + +static const char *Class = "/sys/class/backlight"; + +int main(int argc, char *argv[]) { + int error; + + const char *input = (argc > 1) ? argv[1] : NULL; + + error = chdir(Class); + if (error) err(EX_OSFILE, "%s", Class); + + DIR *dir = opendir("."); + if (!dir) err(EX_OSFILE, "%s", Class); + + struct dirent *entry; + while (NULL != (errno = 0, entry = readdir(dir))) { + if (entry->d_name[0] == '.') continue; + + error = chdir(entry->d_name); + if (error) err(EX_OSFILE, "%s/%s", Class, entry->d_name); + break; + } + if (!entry) { + if (errno) err(EX_IOERR, "%s", Class); + errx(EX_CONFIG, "%s: empty", Class); + } + + FILE *actual = fopen("actual_brightness", "r"); + if (!actual) err(EX_OSFILE, "actual_brightness"); + + uint value; + int match = fscanf(actual, "%u", &value); + if (match == EOF) err(EX_IOERR, "actual_brightness"); + if (match < 1) errx(EX_DATAERR, "actual_brightness"); + + if (!input) { + printf("%u\n", value); + return EX_OK; + } + + if (input[0] == '+' || input[0] == '-') { + size_t count = strnlen(input, 16); + if (input[0] == '+') { + value += 16 * count; + } else { + value -= 16 * count; + } + } else { + value = strtoul(input, NULL, 0); + } + + FILE *brightness = fopen("brightness", "w"); + if (!brightness) err(EX_OSFILE, "brightness"); + + int size = fprintf(brightness, "%u", value); + if (size < 0) err(EX_IOERR, "brightness"); + + return EX_OK; +} diff --git a/bin/c.sh b/bin/c.sh new file mode 100644 index 00000000..ff059437 --- /dev/null +++ b/bin/c.sh @@ -0,0 +1,121 @@ +#!/bin/sh +set -eu + +temp=$(mktemp -d) +trap 'rm -r "${temp}"' EXIT + +exec 3>>"${temp}/run.c" + +cat >&3 <<EOF +#include <assert.h> +#include <ctype.h> +#include <errno.h> +#include <inttypes.h> +#include <limits.h> +#include <locale.h> +#include <math.h> +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include <wchar.h> +#include <wctype.h> + +#include <dirent.h> +#include <fcntl.h> +#include <strings.h> +#include <unistd.h> +EOF + +expr= +type= +while getopts 'e:i:t' opt; do + case "${opt}" in + (e) expr=$OPTARG;; + (i) echo "#include <${OPTARG}>" >&3;; + (t) type=1;; + (?) exit 1;; + esac +done +shift $((OPTIND - 1)) + +cat >&3 <<EOF +int main(int argc, char *argv[]) { + (void)argc; + (void)argv; + $*; +EOF + +if [ -n "${type}" ]; then + cat >&3 <<EOF + printf( + _Generic( + ${expr}, + char: "(char) ", + char *: "(char *) ", + const char *: "(const char *) ", + wchar_t *: "(wchar_t *) ", + const wchar_t *: "(const wchar_t *) ", + signed char: "(signed char) ", + short: "(short) ", + int: "(int) ", + long: "(long) ", + long long: "(long long) ", + unsigned char: "(unsigned char) ", + unsigned short: "(unsigned short) ", + unsigned int: "(unsigned int) ", + unsigned long: "(unsigned long) ", + unsigned long long: "(unsigned long long) ", + float: "(float) ", + double: "(double) ", + long double: "(long double) ", + default: "(void *) " + ) + ); +EOF +fi + +if [ -n "${expr}" ]; then + cat >&3 <<EOF + printf( + _Generic( + ${expr}, + char: "%c\n", + char *: "%s\n", + const char *: "%s\n", + wchar_t *: "%ls\n", + const wchar_t *: "%ls\n", + signed char: "%hhd\n", + short: "%hd\n", + int: "%d\n", + long: "%ld\n", + long long: "%lld\n", + unsigned char: "%hhu\n", + unsigned short: "%hu\n", + unsigned int: "%u\n", + unsigned long: "%lu\n", + unsigned long long: "%llu\n", + float: "%g\n", + double: "%g\n", + long double: "%Lg\n", + default: "%p\n" + ), + ${expr} + ); +EOF +fi + +if [ $# -eq 0 -a -z "${expr}" ]; then + cat >&3 +fi + +echo '}' >&3 + +cat >"${temp}/Makefile" <<EOF +CFLAGS += -Wall -Wextra -Wpedantic +EOF + +make -s -C "${temp}" run +"${temp}/run" diff --git a/bin/c11.l b/bin/c11.l new file mode 100644 index 00000000..b9490f2e --- /dev/null +++ b/bin/c11.l @@ -0,0 +1,149 @@ +/* Copyright (C) 2020 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +%option prefix="c11" +%option noyywrap + +%{ +#include "hilex.h" +%} + +%s MacroLine MacroInclude +%x CharLiteral StringLiteral + +ident [_[:alpha:]][_[:alnum:]]* +width "*"|[0-9]+ + +%% + static int pop = INITIAL; + +[[:blank:]]+ { return Normal; } + +^"%"[%{}]? { + BEGIN(pop = MacroLine); + return Macro; +} + +([-+*/%&|^=!<>]|"<<"|">>")"="? | +[=~.?:]|"["|"]"|"++"|"--"|"&&"|"||"|"->" | +sizeof|(_A|alignof) { + return Operator; +} + +([1-9][0-9]*|"0"[0-7]*|"0x"[[:xdigit:]]+)([ulUL]{0,3}) | +([0-9]+("."[0-9]*)?|[0-9]*"."[0-9]+)([eE][+-]?[0-9]+)?[flFL]? | +"0x"[[:xdigit:]]*("."[[:xdigit:]]*)?([pP][+-]?[0-9]+)[flFL]? { + return Number; +} + +auto|break|case|const|continue|default|do|else|enum|extern|for|goto|if|inline | +register|restrict|return|static|struct|switch|typedef|union|volatile|while | +(_A|a)lignas|_Atomic|_Generic|(_N|n)oreturn|(_S|s)tatic_assert | +(_T|t)hread_local { + return Keyword; +} + +^"#"[[:blank:]]*(include|import) { + BEGIN(pop = MacroInclude); + return Macro; +} +^"#"[[:blank:]]*{ident} { + BEGIN(pop = MacroLine); + return Macro; +} +<MacroInclude>"<"[^>]+">" { + return String; +} +<MacroLine,MacroInclude>{ + "\n" { + BEGIN(pop = INITIAL); + return Normal; + } + "\\\n" { return Macro; } + {ident} { return Macro; } +} + +{ident} { return Ident; } + +"//"([^\n]|"\\\n")* | +"/*"([^*]|"*"[^/])*"*"+"/" { + return Comment; +} + +[LUu]?"'"/[^\\] { + BEGIN(CharLiteral); + yymore(); +} +[LUu]?"'" { + BEGIN(CharLiteral); + return String; +} +([LU]|u8?)?"\""/[^\\%] { + BEGIN(StringLiteral); + yymore(); +} +([LU]|u8?)?"\"" { + BEGIN(StringLiteral); + return String; +} + +<CharLiteral,StringLiteral>{ + "\\\n" | + "\\"[''""?\\abfnrtv] | + "\\"([0-7]{1,3}) | + "\\x"([[:xdigit:]]{2}) | + "\\u"([[:xdigit:]]{4}) | + "\\U"([[:xdigit:]]{8}) { + return Escape; + } +} +<StringLiteral>{ + "%%" | + "%"[EO]?[ABCDFGHIMRSTUVWXYZabcdeghjmnprtuwxyz] | + "%"[ #+-0]*{width}?("."{width})?([Lhjltz]|hh|ll)?[AEFGXacdefginopsux] { + return Format; + } +} + +<CharLiteral>{ + [^\\'']*"'" { + BEGIN(pop); + return String; + } + [^\\'']+|. { return String; } +} +<StringLiteral>{ + [^%\\""]*"\"" { + BEGIN(pop); + return String; + } + [^%\\""]+|. { return String; } +} + +<MacroLine,MacroInclude>. { + return Macro; +} + +.|\n { return Normal; } + +%{ + (void)yyunput; + (void)input; +%} + +%% + +const struct Lexer LexC = { yylex, &yyin, &yytext }; diff --git a/bin/dash/.gitignore b/bin/dash/.gitignore new file mode 100644 index 00000000..63fccdc3 --- /dev/null +++ b/bin/dash/.gitignore @@ -0,0 +1,34 @@ +# .gitignore for dash + +# generated by autogen.sh +/autom4te.cache/ + +# generated by configure +Makefile +.deps +.dirstamp +/config.cache +/config.h +/config.log +/config.status +/stamp-h1 + +# generated by make +/src/token_vars.h + +# Apple debug symbol bundles +*.dSYM/ + +# backups and patch artefacts +*~ +*.bak +*.orig +*.rej + +# OS generated files +.DS_Store +.DS_Store? +._* +.Spotlight* +.Trash* +*[Tt]humbs.db diff --git a/bin/dash/COPYING b/bin/dash/COPYING new file mode 100644 index 00000000..37f8189c --- /dev/null +++ b/bin/dash/COPYING @@ -0,0 +1,56 @@ +Copyright (c) 1989-1994 + The Regents of the University of California. All rights reserved. +Copyright (c) 1997 Christos Zoulas. All rights reserved. +Copyright (c) 1997-2005 + Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + +This code is derived from software contributed to Berkeley by Kenneth Almquist. + + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions +are met: +1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. +3. Neither the name of the University nor the names of its contributors + may be used to endorse or promote products derived from this software + without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +SUCH DAMAGE. + +mksignames.c: + +This file is not directly linked with dash. However, its output is. + +Copyright (C) 1992 Free Software Foundation, Inc. + +This file is part of GNU Bash, the Bourne Again SHell. + +Bash is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 2, or (at your option) any later +version. + +Bash is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +You should have received a copy of the GNU General Public License with +your Debian GNU/Linux system, in /usr/share/common-licenses/GPL, or with the +Debian GNU/Linux hello source package as the file COPYING. If not, +write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, +Boston, MA 02111 USA. diff --git a/bin/dash/ChangeLog b/bin/dash/ChangeLog new file mode 100644 index 00000000..406e20c0 --- /dev/null +++ b/bin/dash/ChangeLog @@ -0,0 +1,806 @@ +2014-11-17 Stéphane Aulery <saulery@free.fr> + + * Correct typo in manual page. + * Document redirection file descriptor limitation. + +2014-10-30 Herbert Xu <herbert@gondor.apana.org.au> + + * Catch variable length expansions on non-existant specials. + +2014-10-28 Herbert Xu <herbert@gondor.apana.org.au> + + * Removed unnecessary pungetc on EOF from parser. + * Simplify EOF/newline handling in list parser. + +2014-10-27 Herbert Xu <herbert@gondor.apana.org.au> + + * Add printf support for format string a, A, and F. + * Handle embedded NULs correctly in printf. + * Replace open-coded flushall in preadbuffer. + * Add likely tag in outmem. + * Add ifdefs around MEM_OUT handling in outmem. + * Remove unnecessary restoration of format string in printf. + * Remove getintmax in printf. + * Use error instead of warnx for fatal errors in printf. + * Optimise handling of backslash octals in printf. + * Simplify echo command. + * Handle -- in dotcmd. + +2014-10-13 Eric Blake <eblake@redhat.com> + + * cd: support drive letters on Cygwin. + +2014-10-08 Herbert Xu <herbert@gondor.apana.org.au> + + * Split unquoted $@/$* correctly when IFS is set but empty. + * Do not split quoted VSLENGTH and VSTRIM. + * Optimise nulonly away and just use quoted as before. + +2014-10-07 Herbert Xu <herbert@gondor.apana.org.au> + + * Use setvareq to set OPTIND initially. + +2014-10-06 Herbert Xu <herbert@gondor.apana.org.au> + + * Exit without arguments in a trap should use status outside traps. + * Do not allow break to break across function calls. + * Move common skipcount logic into skiploop. + * Allow return in loop conditional to set exit status. + * Return without arguments in a trap should use status outside traps. + +2014-10-03 Herbert Xu <herbert@gondor.apana.org.au> + + * Do not clobber exitstatus in evalcommand. + +2014-10-02 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix use-after-free in dotrap/evalstring. + * Make sure evalskip is zero before running traps. + * Set exitstatus in onint. + +2014-09-29 Herbert Xu <herbert@gondor.apana.org.au> + + * Kill pgetc_macro. + * Handle backslash newlines properly after dollar sign. + * Add nlprompt/nlnoprompt helpers. + +2014-09-28 Herbert Xu <herbert@gondor.apana.org.au> + + * Correctly handle test ! ! = !. + +2014-09-26 Herbert Xu <herbert@gondor.apana.org.au> + + * Small optimisation of command -pv change. + * Set command -p path to /usr/sbin:/usr/bin:/sbin:/bin. + * Change "characters" for printf precision to "bytes". + * Release 0.5.8. + +2014-09-26 Jonathan Nieder <jrnieder@gmail.com> + + * Clarify "trap '' signals" syntax in manual page. + +2014-09-26 Adam Buchbinder <adam.buchbinder@gmail.com> + + * Clarify that 0 and EXIT are both acceptable for exit traps. + +2014-09-26 Harald van Dijk <harald@gigawatt.nl> + + * command: allow combining -p with -v. + * getjob: Fix off-by-one error for multiple of four job numbers + +2013-08-23 Herbert Xu <herbert@gondor.apana.org.au> + + * Propagate EXP_QPAT in subevalvar. + * Initialise OPTIND after importing environment. + * Fixed argument parsing crash in test. + +2013-03-12 Peter Rosin <peda@lysator.liu.se> + + * Add newline when tracing in poplocalvars. + +2013-01-10 Jérémie Courrèges-Anglas <jca+dash@wxcvbn.org> + + * Markup fixes in manual for mandoc 1.12.1. + +2012-12-03 Harald van Dijk <harald@gigawatt.nl> + + * Use PRIdMAX instead of %j in printf. + +2012-07-20 Kimo Rosenbaum <kimor79@yahoo.com> + + * Fix typo for wait in manual. + +2012-06-09 Christoph Mathys <eraserix@gmail.com> + + * Add support for ulimit -r. + +2012-03-11 Jim Meyering <meyering@redhat.com> + + * Avoid overflow for very long variable name. + $ perl -le 'print "v"x(2**31+1) ."=1"' | dash + +2012-02-25 Herbert Xu <herbert@gondor.apana.org.au> + + * Sanitise environment variable names on entry. + +2011-08-17 David S. Miller <davem@davemloft.net> + + * Allow building without LINEO support. + * Add top-level autogen.sh. + +2011-07-26 Harald van Dijk <harald@gigawatt.nl> + + * Avoid imaxdiv when only one of the results is wanted. + +2010-07-09 maximilian attems <max@stro.at> + + * Fix klibc DEBUG compilation. + +2011-07-09 Herbert Xu <herbert@gondor.apana.org.au> + + * Merge SKIPFUNC/SKIPFILE and only clear SKIPFUNC when leaving dotcmd. + +2011-07-08 Herbert Xu <herbert@gondor.apana.org.au> + + * Release 0.5.7. + +2011-07-07 Herbert Xu <herbert@gondor.apana.org.au> + + * Optimize dash -c "command" to avoid a fork. + * Eliminate unnecessary promotion in echocmd. + +2011-05-25 Jim Meyering <meyering@redhat.com> + + * Avoid using undefined handler. + +2011-05-23 Jim Meyering <meyering@redhat.com> + + * Avoid gcc warning: variable 'oldstackp' set but not used. + * Avoid clang warning about dead store to "size". + +2011-05-22 Jonathan Nieder <jrnieder@gmail.com> + + * Make outc an inline function. + +2011-05-02 Kalle Olavi Niemitalo <kon@iki.fi> + + * Remove spurious space in descriptions of PS1, PS2, PS4. + +2011-04-10 Jonathan Nieder <jrnieder@gmail.com> + + * Remove unused EV_BACKCMD flag. + +2011-03-15 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix clobbering of checkkwd. + +2011-03-15 Jonathan Nieder <jrnieder@gmail.com> + + * Free IFS state after here document expansion. + * Use va_copy when reusing a va_list. + +2011-03-15 Harald van Dijk <harald@gigawatt.nl> + + * Let funcnode refer to a function definition, not its first command. + * Improve LINENO support. + +2011-03-15 Brian Koropoff <bkoropoff@gmail.com> + + * Port to Solaris. + +2011-03-11 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix backslash handling in read(1). + +2011-03-10 Jonathan Nieder <jrnieder@gmail.com> + + * Dotcmd should exit with zero when doing nothing. + +2011-03-10 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix CTLESC clobbering by read(1). + +2011-03-10 Brian Koropoff <bkoropoff@gmail.com> + + * Port to AIX. + +2011-03-10 Jilles Tjoelker <jilles@stack.nl> + + * Replace GPL noclobberopen code with the FreeBSD version. + * Do not split the result of tilde expansion. + +2010-11-28 Maciej Å»enczykowski <zenczykowski@gmail.com> + + * Mark status as volatile in exitshell. + +2010-11-28 Jonathan Nieder <jrnieder@gmail.com> + + * Use EXEXIT in place of EXEXEC. + * Stop documenting EXSHELLPROC. + +2010-11-28 Gerrit Pape <pape@smarden.org> + + * Use exit status 127 when the script to run does not exist. + +2010-11-28 Philipp Weis <pweis@pweis.com> + + * Document optional open parenthesis for case patterns. + +2010-11-28 Herbert Xu <herbert@gondor.apana.org.au> + + * Fixed trap/return regression due to SKIPEVAL removal. + * Allow the originator of EXERROR to set the exit status. + * Free IFS state in evalbackcmd. + +2010-10-18 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix ifsfirst/ifslastp leak in casematch. + +2010-10-07 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix EXEXEC status clobbering. + +2010-09-08 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix ifsfirst/ifslastp leak. + * Fix trailing field bug in read(1). + +2010-09-08 maximilian attems <max@stro.at> + + * Debug compile fix. + +2010-09-08 Jilles Tjoelker <jilles@stack.nl> + + * Fix varinit ordering that broke fc. + +2010-07-06 Gerrit Pape <pape@smarden.org> + + * Check exit for eval NSUBSHELL. + +2010-07-06 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix loss of variables when hash collides. + * Removed dead code for eval NPIPE. + +2010-06-28 Gerrit Pape <pape@smarden.org> + + * Don't clear eflag in evalbackcmd. + +2010-05-29 Herbert Xu <herbert@gondor.apana.org.au> + + * Continue after EINTR in read(1) with no pending signals. + +2010-05-27 Jilles Tjoelker <jilles@stack.nl> + + * Force fork if any trap is set, not just on EXIT. + * Fix corruption of redirections with byte 0x81. + +2010-05-27 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix poplocalvar on abnormal exit from function. + * Do not poplocalvars prematurely on regular utilities. + * Move null redirect checks into caller. + * Fix popredir on abnormal exit from built-in. + * Fix wait regression where it does not wait for all jobs. + +2010-05-26 Herbert Xu <herbert@gondor.apana.org.au> + + * Replace cmdenviron with localvars. + +2010-05-25 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix poplocalvar leak. + * Move unsetvar functionality into setvareq. + +2010-05-24 Herbert Xu <herbert@gondor.apana.org.au> + + * Add localvars nesting, local now fails outside functions. + +2010-05-03 Gerrit Pape <pape@smarden.org> + + * Fix command -- crash. + +2010-04-15 H. Peter Anvin <hpa@zytor.com> + + * Fix for job control off warning. + +2010-04-02 Herbert Xu <herbert@gondor.apana.org.au> + + * Use faccessat if available. + +2010-04-02 Herbert Xu <herbert@gondor.apana.org.au> + + * Make trap signal name/number errors non-fatal. + * Release 0.5.6. + +2010-04-02 maximilian attems <max@stro.at> + + * Use TMPDIR in mkbuiltins. + +2010-03-10 Jilles Tjoelker <jilles@stack.nl> + + * Fix logical or result value. + +2010-03-09 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix binary operator parsing. + +2009-11-26 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix off-by-one recordregion in readcmd. + +2009-09-28 Jim Meyering <meyering@redhat.com> + + don't read-uninitialized for \177 in a here-doc + A DEL (0177, dec 127) byte in a here-document would cause dash to + access uninitialized memory at the end of one of the syntax.c tables, + since those tables are sized to accommodate a maximum index of + BASESYNTAX + 126. Make the generated tables one byte larger. + printf ':<<\\E\n\200y\nE'|./dash + * src/mksyntax.c (filltable): Use 258, not 257 as the size, + so that BASESYNTAX(=130) + 127 is a valid index. + (print): Likewise. + Don't emit explicit array dimension in declaration. + +2009-08-31 Eric Blake <ebb9@byu.net> + + * Avoid compiler warnings on isdigit. + +2009-08-31 Matthew Burgess <matthew@linuxfromscratch.org> + + * Add another missing LC_COLLATE to mkbuiltins. + +2009-08-31 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix NUL termination in readcmd. + * Lookup PWD after going through CDPATH. + +2009-08-11 Herbert Xu <herbert@gondor.apana.org.au> + + * Pass EV_TESTED into evalcmd. + * Revert SKIPEVAL into EXEXIT. + +2009-08-11 Rocky Bernstein <rocky.bernstein@gmail.com> + + * Add preliminary LINENO support. + +2009-08-11 Stefan Potyra <stefan.potyra@informatik.uni-erlangen.de> + + * Honor tab as IFS whitespace when splitting fields in readcmd. + +2009-06-30 Herbert Xu <herbert@gondor.apana.org.au> + + * Do not truncate file for FROMTO redirection. + +2009-06-27 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix quoted pattern patch breakage. + +2009-05-23 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix incorrect savefd conversions. + +2009-02-22 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix dowait signal race. + * Remove EXSIG. + * Do not close stderr when /dev/tty fails to open. + * Allow newlines after var name in for statements. + * Use CHKNL to parse case statements. + +2009-02-22 Gerrit Pape <pape@smarden.org> + + * Update manual page to differentiate dash from ash. + +2009-01-14 Herbert Xu <herbert@gondor.apana.org.au> + + * Add arith_yacc.h to dash_SOURCES. + * Release 0.5.5.1. + +2009-01-13 Herbert Xu <herbert@gondor.apana.org.au> + + * Release 0.5.5. + +2009-01-13 Mark Mentovai <mmentovai@gmail.com> + + * Fixed build on OS X. + +2008-12-26 Aleksey Cheusov <vle@gmx.net> + + * Fixed build on NetBSD. + +2008-10-17 Herbert Xu <herbert@gondor.apana.org.au> + + * Removed obsolete for loop syntax in manual. + +2008-08-05 Herbert Xu <herbert@gondor.apana.org.au> + + * Fixed getcwd build error for the non-glibc case. + +2008-06-13 Gerrit Pape <pape@smarden.org> + + * Added missing right parenthesis in manual page. + +2008-06-13 Herbert Xu <herbert@gondor.apana.org.au> + + * Fixed 3,4-argument cases for test per POSIX. + * Made aexpr/oexpr non-recursive. + * Made t_lex reentrant. + * Made setinputfd static. + * Expand ENV before using it. + * Added support for -l. + +2008-05-19 Herbert Xu <herbert@gondor.apana.org.au> + + * Fixed non-leading slash treatment in expmeta. + +2008-05-07 Gerrit Pape <pape@smarden.org> + + * Fixed lexical error in arithmetic expansion of & and |. + +2008-05-03 Dan McGee <dpmcgee@gmail.com> + + * Fixed klibc/klcc build problems. + * Added gitignore. + +2008-05-03 Herbert Xu <herbert@gondor.apana.org.au> + + * Fixed _PATH_BSHELL warning. + * Test __GLIBC__ instead of _GNU_SOURCE. + * Restored warning when getcwd fails. + * Set default exvwarning2 arg0 for errors during early initialisation. + * Use uninitialized_var to silence bogus warnings. + +2008-05-02 Herbert Xu <herbert@gondor.apana.org.au> + + * Restored non-glibc getcwd support. + +2008-03-07 Larry Doolittle <ldoolitt@recycle.lbl.gov> + + * Fix cmdtxt crash on if statements. + +2008-01-01 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix slash treatment in expmeta. + +2007-12-27 Herbert Xu <herbert@gondor.apana.org.au> + + * Add FAKEEOFMARK for expandstr. + * Do not show prompts in expandstr. + +2007-12-23 Gerrit Pape <pape@smarden.org> + + * If imaxdiv() isn't available, use / and % operators. + +2007-12-23 Richard M Kreuter <kreuter@progn.net> + + * Add set +o support. + +2007-12-23 Steve Langasek <steve.langasek@canonical.com> + + * Fixed bad pointer arithmetic in evalcommand. + +2007-11-11 Herbert Xu <herbert@gondor.apana.org.au> + + * Removed noexpand/length check on eofmark. + * Removed herefd hack. + * Expand here-documents in the current shell environment. + +2007-10-20 Herbert Xu <herbert@gondor.apana.org.au> + + * Added configure --enable-glob and --enable-fnmatch options. + * Fix here-doc corruption. + +2007-10-17 Herbert Xu <herbert@gondor.apana.org.au> + + * Replace shared illnum message by badnum function. + +2007-10-17 Oleg Verych <olecom@flower.upol.cz> + + * Disallow completely blank strings in non-arithmetic context. + +2007-10-15 Herbert Xu <herbert@gondor.apana.org.au> + + * Fixed execing of scripts with no hash-bang. + +2007-10-11 Herbert Xu <herbert@gondor.apana.org.au> + + * Add assignment support in arithmetic expansions. + * Size optimisations in arithmetic lexer. + * Add likely flags in expari. + * Use setvarint to set OPTIND. + +2007-10-08 Herbert Xu <herbert@gondor.apana.org.au> + + * Report substition errors at expansion time. + +2007-10-06 Herbert Xu <herbert@gondor.apana.org.au> + + * Add pushstackmark. + * Treat OPTIND=0 in the same way as OPTIND=1. + * Remove setvarsafe. + * Use intmax_t arithmetic in test. + +2007-10-05 Herbert Xu <herbert@gondor.apana.org.au> + + * Made grabstackblock an inline wrapper for stalloc. + +2007-10-04 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix parsing of ${##1}. + * Size optimisations in parameter expansion parser. + +2007-10-04 Alexey Gladkov <legion@altlinux.org> + + * Add --enable-static option to configure. + +2007-09-26 Herbert Xu <herbert@gondor.apana.org.au> + + * Recognise here-doc delimiters terminated by EOF. + +2007-09-26 Roy Marples <uberlord@gentoo.org> + + * Refresh stack pointers after makestrspace in _rmescapes. + +2007-09-25 Gerrit Pape <pape@smarden.org> + + * Clarify description of -nt, -ot options to test builtin. + * Clarify syntax of the for command. + +2007-09-25 Herbert Xu <herbert@gondor.apana.org.au> + + * Do not expand tilde in parameter expansion within quotes. + * Move parse-time quote flag detection to run-time. + +2007-09-24 Herbert Xu <herbert@gondor.apana.org.au> + + * Do not quote back slashes in parameter expansions outside quotes. + * Perform tilde expansion in all parameter expansion words. + * Remove superfluous arinest test in CENDQUOTE. + * Remove superfluous arinest test for dqvarnest. + * Remove superfluous dblquote settings when ending arith. + * Remove arithmetic expansion collapsing at parse time. + +2007-09-22 Oleg Verych <olecom@flower.upol.cz> + + * White space fixes for test(1). + * Use direct comparison instead of strcmp in test(1). + +2007-09-22 Herbert Xu <herbert@gondor.apana.org.au> + + * Move flushall to the point just before _exit. + +2007-09-21 Denis Vlasenko <vda.linux@googlemail.com> + + * Restore foreground process group on exit. + +2007-07-12 Herbert Xu <herbert@gondor.apana.org.au> + + * Release 0.5.4. + +2007-05-12 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix redirect restore on closed file descriptors. + * Size optimisations in redir.c. + +2007-05-06 Herbert Xu <herbert@gondor.apana.org.au> + + * Removed unnecessary inclusion of redir.h from parser.c. + * Invoke sh_error on error in copyfd. + * Use dup2 instead of copyfd in evalbackcmd. + * Replace copyfd by savefd and dup2. + * Removed redundant CLOEXEC calls. + +2007-05-05 Herbert Xu <herbert@gondor.apana.org.au> + + * Fixed typo in parser.h comment. + +2007-04-28 Dan Nicholson <dbn.lists@gmail.com> + + * Set LC_COLLATE for sort in mkbuiltin. + +2006-10-22 Gerrit Pape <pape@smarden.org> + + * Fixed command -v segmentation fault. + +2006-10-13 Alexey Gladkov <legion@altlinux.org> + + * Check return code for getgroups and fwrite. + +2006-10-04 Herbert Xu <herbert@gondor.apana.org.au> + + * Fixed inverted char class matching. + +2006-05-23 Alexey Gladkov <legion@altlinux.org> + + * Added --with-libedit option to configure. + +2006-03-29 Herbert Xu <herbert@gondor.apana.org.au> + + * Removed useless parsebackquote flag. + * Use alloca to get rid of setjmp in parse.c. + * Only use signed char for syntax arrays. + +2006-01-12 Herbert Xu <herbert@gondor.apana.org.au> + + * Fixed eval exit status with empty arguments. + +2005-11-26 Herbert Xu <herbert@gondor.apana.org.au> + + * Release 0.5.3. + +2005-11-14 Herbert Xu <herbert@gondor.apana.org.au> + + * Fix \c spillage across echo commands. + +2005-11-13 Herbert Xu <herbert@gondor.apana.org.au> + + * Remove unnecessary truncation in _STPUTC. + * Always call conv_escape_str in echocmd. + +2005-11-04 Herbert Xu <herbert@gondor.apana.org.au> + + * Use mktemp if tempfile is not available. + +2005-10-30 Herbert Xu <herbert@gondor.apana.org.au> + + * Fixed support for disabling job control. + +2005-10-29 Herbert Xu <herbert@gondor.apana.org.au> + + * Updated BSD licence to 3-clause version per NetBSD. + * Updated copyright. + * Removed CVS IDs and inclusion of sys/cdefs.h. + * Removed use of __P from error.h. + * Use bsd_signal if it exists and signal does not. + * Stop using sysexits.h in commandcmd. + * Use stat if stat64 does not exist. + * Added default implementation of bsearch. + * Added getpwhome as a wrapper for getpwnam. + * Fixed gcc 4.0 compilation problems. + * Added missing system.h inclusion for mempcpy. + * Added default implementation of strsignal. + * Added default implementation of killpg. + * Disable ulimit if there is no getrlimit. + * Disable histcmd completely when SMALL is defined. + * Added default definition for SSIZE_MAX. + * Removed standalone/csh support from printf. + * Added dummy strtod implementation. + * Removed standalone/csh support from test. + * Added dummy sysconf implementation. + * Include system.h for stpcpy in nodes.c. + * Added out-of-line ctypes functions for klibc. + * Fixed fallback stpcpy implementation. + +2005-10-26 Herbert Xu <herbert@gondor.apana.org.au> + + * Size optimisations in preadbuffer(). + +2005-10-01 Herbert Xu <herbert@gondor.apana.org.au> + + * Skip NUL characters properly in input.c. + +2005-03-28 Herbert Xu <herbert@gondor.apana.org.au> + + * Removed some unnecessary inclusions of input.h. + * Removed unnecessary inclusion of main.h from eval.c. + * Removed unnecessary inclusion of eval.h from parser.c. + * Generalise setinputfile for use in read_profile/readcmdfile. + * Handle SKIPEVAL in read_profile by exiting. + * Let evaltree handle traps from cmdloop. + * Reset evalskip after minusc is executed. + * Stop executing traps once SKIPEVAL is seen. + * Only handle each signal once in dotrap. + +2005-03-25 Gerrit Pape <pape@smarden.org> + + * Add trailing equal sign in setvar for variables set to null. + +2005-03-25 Herbert Xu <herbert@gondor.apana.org.au> + + * Cleaned up src/Makefile.am. + * Get rid of duplicate -g -O2 in CFLAGS. + * Eliminate first null termination in setvar. + * Turn evalskip into a bit field. + +2005-03-25 Gilles Chanteperdrix <gilles.chanteperdrix@laposte.net> + + * Fixed support for cross-compilation. + +2005-03-03 Herbert Xu <herbert@gondor.apana.org.au> + + * Removed qflag. + * Removed redundant setstackmark from dotcmd. + * Do not clobber exit status in dotcmd. + +2005-03-02 Herbert Xu <herbert@gondor.apana.org.au> + + * Renamed symbols to avoid conflict with libc. + * Optimisations in bltin/test.c. + +2005-02-28 Herbert Xu <herbert@gondor.apana.org.au> + + * Replaced EXEVAL with SKIPEVAL. + * Update funcnest atomically. + * Only set skipcount for break and continue. + * Removed expcmd built-in. + * Normalise input in likely/unlikely macros. + +2005-02-28 A Costa <agcosta@gis.net> + + * Corrected that/than typo in manual page. + +2005-02-25 A Costa <agcosta@gis.net> + + * Corrected grammar in manual page. + +2005-02-25 Herbert Xu <herbert@gondor.apana.org.au> + + * Changed boolean rootshell into shlvl counter. + * Catch set -e exits within built-in commands. + * Size optimisations with setjmp in main(). + * Only reread exitstatus on EXEXIT in exitshell. + * Eliminated global exerrno. + +2005-01-31 Gerrit Pape <pape@smarden.org> + + * Release 0.5.2. + * Corrected manual entry about ENV and non-interactive shells. + +2004-11-24 Gerrit Pape <pape@smarden.org> + + * Spell behaviour consistently in manual page. + +2004-11-23 A Costa <agcosta@gis.net> + + * Fixed spelling errors in manual page. + +2004-08-21 Herbert Xu <herbert@gondor.apana.org.au> + + * Size optimisations around varvalue() in src/expand.c. + * Fixed signed char promotion in src/expand.c. + +2004-08-18 Herbert Xu <herbert@gondor.apana.org.au> + + * Fixed $@ expansion when leading argument is null in src/expand.c. + +2004-08-07 Herbert Xu <herbert@gondor.apana.org.au> + + * Allow negative pid argument to kill(1) in src/jobs.c. + +2004-08-04 Herbert Xu <herbert@gondor.apana.org.au> + + * Fixed cd - when OLDPWD is unset in src/cd.c. + +2004-07-09 Herbert Xu <herbert@gondor.apana.org.au> + + * Include system.h (Gerrit Pape): + . src/mystring.c + . src/var.c + . src/bltin/printf.c + +2004-07-03 Herbert Xu <herbert@gondor.apana.org.au> + + * Release 0.5.1. + * Use automake and autoconf. + * Include stdlib.h for exit(3) in src/mksyntax.c. + +2004-06-29 Herbert Xu <herbert@gondor.apana.org.au> + + * Added sigclearmask. + * Removed hack for _setjmp/_longjmp. + * Added default implementations of mempcpy/stpcpy/strchrnul. + * Use strtoll/strtoull if strtoimax/strtoumax are unavailable. + * Removed sh.1 to dash.1. + +2004-05-28 Herbert Xu <herbert@gondor.apana.org.au> + + * Fixed vstype trim operator ordering in cmdputs. + * Fixed quote for CTLENDVAR in cmdputs. + * Fixed VSLENGTH crash in cmdputs. + * Turned vstype back into a 2-d array of chars. + * Added POSIX character class support in pmatch. + +For older ChangeLogs see ChangeLog.O. + +ChangeLog ends here diff --git a/bin/dash/ChangeLog.O b/bin/dash/ChangeLog.O new file mode 100644 index 00000000..dfdb2cec --- /dev/null +++ b/bin/dash/ChangeLog.O @@ -0,0 +1,1023 @@ +dash (0.4.26) unstable; urgency=low + + * Disabled fnmatch code again (closes: #240887). + * Updated copyright. + * Updated German debconf translation (Florian Ernst, closes: #244507). + * Fixed obstack corruption in setprompt (closes: #246635). + + -- Herbert Xu <herbert@debian.org> Fri, 30 Apr 2004 21:48:52 +1000 + +dash (0.4.25) unstable; urgency=low + + * Fixed use-after-free bug in setvareq (Vladimir N. Oleynik). + * Fixed value of expdest after _STPUTC in expandarg (closes: #238265). + + -- Herbert Xu <herbert@debian.org> Thu, 18 Mar 2004 20:55:57 +1100 + +dash (0.4.24) unstable; urgency=low + + * Fixed segmentation fault when PWD is undefined. + + -- Herbert Xu <herbert@debian.org> Tue, 9 Mar 2004 19:58:41 +1100 + +dash (0.4.23) unstable; urgency=low + + * Verify PWD before using it. + + -- Herbert Xu <herbert@debian.org> Mon, 8 Mar 2004 20:12:27 +1100 + +dash (0.4.22) unstable; urgency=low + + * Read PWD from environment (closes: #228659). + * Added Danish debconf translation (Claus Hindsgaul, closes: #233756). + * Added check_gcc to support gcc 2.95 (closes: #235933). + * Perform here-doc expansion on PS1/PS2/PS4 (closes: #230858). + + -- Herbert Xu <herbert@debian.org> Sun, 7 Mar 2004 21:50:04 +1100 + +dash (0.4.21) unstable; urgency=low + + * Fixed typo that broke ulimit (GCS, closes: #228369). + + -- Herbert Xu <herbert@debian.org> Mon, 19 Jan 2004 19:02:32 +1100 + +dash (0.4.20) unstable; urgency=low + + * Added Dutch debconf translation (Tim Dijkstra, closes: #218904). + * Check existence RLIMIT symbols for ulimit. + * Removed table lookup in errmsg. + * Restored NULL check in cmdtxt. + * Restored ash postrm to purge debconf entries (closes: #221913). + * Fixed exit status of exit in EXIT trap (closes: #227734). + * Updated Brazilian debconf translation (Andre Luis Lopes, closes: #228095). + * Restored goodname check in prehash. + + -- Herbert Xu <herbert@debian.org> Sat, 17 Jan 2004 09:57:14 +1100 + +dash (0.4.19) unstable; urgency=low + + * Fixed handling of evalskip in dotcmd (closes: #212975). + * Updated Russian debconf translation (Ilgiz Kalmetev, closes: #214333). + * Added Portugese debconf translation (Bruno Rodrigues, closes: #216214). + * Updated Spanish debconf translation (Carlos Valdivia, closes: #216338). + * Fixed length expansion of special variables (closes: #216767). + * Replaced umask builtin with pdksh version. + * Reverted bogus eval change in 0.3.1-20. + * Added vmemory/locks support in ulimit. + * Call install -D instead of cp for merged template. + + -- Herbert Xu <herbert@debian.org> Wed, 29 Oct 2003 22:14:22 +1100 + +dash (0.4.18) unstable; urgency=low + + * Fixed boundary checks in getopts. + * Updated Japanese debconf template (Tomohiro KUBOTA, closes: #192382). + * Use -falign-* instead -malign-*. + * Use strtoll for parsing integers in arith expansion. + * Added support for add-shell/remove-shell (closes: #163131). + * Fixed JOBS ifdefs in sprint_status (closes: #211009). + * Fixed bit-wise or in arith expansion (Mototoshi KONDO, closes: #212825). + * Print PS4 on previous stderr. + * Converted debconf templates to gettext (Christian Perrier, + closes: #200112). + + -- Herbert Xu <herbert@debian.org> Sat, 27 Sep 2003 14:26:36 +1000 + +dash (0.4.17) unstable; urgency=low + + * Reset rehash when recylcing cmd entries. + * Fixed null arg0 segfault with -c (closes: #191687). + * Relocate job pointers in makejob (closes: #191595). + + -- Herbert Xu <herbert@debian.org> Sat, 3 May 2003 20:57:46 +1000 + +dash (0.4.16) unstable; urgency=low + + * Fixed printf so that exit status is cleared on entry. + * Call nextopt() in printf. + * Fixed command substitution corruption by grabbing expdest in expbackq + (closes: #187896). + + -- Herbert Xu <herbert@debian.org> Mon, 7 Apr 2003 21:21:30 +1000 + +dash (0.4.15) unstable; urgency=low + + * Fixed octal escapes in echo/printf (closes: #187827). + + -- Herbert Xu <herbert@debian.org> Sun, 6 Apr 2003 20:45:38 +1000 + +dash (0.4.14) unstable; urgency=low + + * Added missing newline when printing in dowait. + * Do not print status in dowait when stopped. + * Fixed job status display. + * Fixed current job setting. + * Fixed kill segfault with no arguments (closes: #187189). + * Fixed sorting of set output. + * Removed setvar builtin. + + -- Herbert Xu <herbert@debian.org> Thu, 3 Apr 2003 20:38:33 +1000 + +dash (0.4.13) unstable; urgency=low + + * Fixed precision type on 64 bit systems in showvars. + + -- Herbert Xu <herbert@debian.org> Wed, 26 Mar 2003 20:00:03 +1100 + +dash (0.4.12) unstable; urgency=low + + * Fixed dash_errno build problem with gcc 3.2. + + -- Herbert Xu <herbert@debian.org> Tue, 25 Mar 2003 22:28:50 +1100 + +dash (0.4.11) unstable; urgency=low + + * Removed unused pgrp field from job structure. + * Free jobs when calling wait with no arguments. + * Fixed build problem with bison. + * Merged changes from NetBSD 20030123. + . printf: + - Fixed mklong sefault. + - Fixed precision/field width with %b. + . Improved option parsing of command(1). + . Added rudimentary support for PS4. + * Moved builtin flags into builtins.def. + * Updated Spanish debconf template (Carlos Valdivia Yagüe, closes: #178359). + * Fixed ordering of redirection versus assignment substitution. + * Fixed potential setvareq memory leaks. + * Use bison instead of byacc. + * Fixed wait(1) race condition. + * Fixed alignment memory corruption bug in growstackblock(). + * Fixed potential memory corruption in parsing position parameters. + * Fixed getopts done check. + + -- Herbert Xu <herbert@debian.org> Mon, 24 Mar 2003 20:42:29 +1100 + +dash (0.4.10) unstable; urgency=low + + * Fixed redirection fd leak when execing. + + -- Herbert Xu <herbert@debian.org> Sun, 19 Jan 2003 13:25:41 +1100 + +dash (0.4.9) unstable; urgency=low + + * Reset exitstatus in evalsubshell if backgnd is true. + * Fixed glibc glob syntax error in expand.c. + + -- Herbert Xu <herbert@debian.org> Sat, 11 Jan 2003 16:04:02 +1100 + +dash (0.4.8) unstable; urgency=low + + * Removed backgnd flag from ncmd due to previous redirection change. + * Set lim after the stack stablises in updatepwd (closes: #173884). + * Do not clobber the exitstatus after redirection. + + -- Herbert Xu <herbert@debian.org> Mon, 23 Dec 2002 19:50:06 +1100 + +dash (0.4.7) unstable; urgency=low + + * Merged clearredir with reset code in redir.c. + * Redirect before command search in evalcommand (closes: #168862). + * Build binary-all packages in binary-indep (closes: #173191). + + -- Herbert Xu <herbert@debian.org> Sat, 21 Dec 2002 13:52:37 +1100 + +dash (0.4.6) unstable; urgency=low + + * Restored code for leaving job control. + + -- Herbert Xu <herbert@debian.org> Sun, 8 Dec 2002 15:21:58 +1100 + +dash (0.4.5) unstable; urgency=low + + * Optimised doformat so that vsnprintf is usually called only once. + * Reset redirlist in clearredir so that popredir can work (closes: #170247). + + -- Herbert Xu <herbert@debian.org> Sat, 23 Nov 2002 22:09:59 +1100 + +dash (0.4.4) unstable; urgency=low + + * Fixed duplicate define warnings in init.c. + * Set debhelper compat to 4. + * Vanishing mail boxes no longer elicit "you have mail" messages. + * Function redirection errors no longer abort the shell. + * Fixed potential memory leak in redirect. + * Only allocate memory if necessary in redirect. + * Reap dead here documents. + * Do not strdup default values of static shell variables. + * Removed unnecessary setprompt(0) calls. + * Read in BUFSIZ chunks rather than BUFSIZ - 1. + * Documented undefined escape behaviour for echo(1) (closes: #167893). + * Do va_copy when we use a va_list twice (closes: #169503). + + -- Herbert Xu <herbert@debian.org> Wed, 20 Nov 2002 19:48:31 +1100 + +dash (0.4.3) unstable; urgency=low + + * Added manual entry for PPID. + * Exporting an unset variable no longer causes it to be set. + * Fixed fd0 redirection in asynchronous lists. + * Only stat if necessary in cdcmd (see #42880). + * Removed extra newline in error message in arith lexer. + * Set heredoclist to 0 ASAP in parseheredoc. + * Removed BSD advertising clause from copyright file. + * Check non-ash diversions as well in dash.postinst. + * Duplicated diversion checking in ash.postinst (closes: #166441). + + -- Herbert Xu <herbert@debian.org> Sat, 26 Oct 2002 21:28:33 +1000 + +dash (0.4.2) unstable; urgency=low + + * Give benefits of dash in templates (closes: #161527). + * Fixed signed/unsigned on result of xwrite (closes: #161606). + * Removed support for SIG prefixes in kill and trap. + * Added -- processing in trap. + * Dropped use of unset in postinst (closes: 161868). + * Fixed printf(1) %* processing on bad integers and zero. + * Use stat64 in test(1). + * Allocate group_array with stalloc in test(1). + * Disabled alias checking after a pattern in a case statement. + * Wait now returns 128 + last trapped signal. + * Printf now keeps going after errors. + * Empty non-trivial parameter expansions are now removed correctly. + * Call reset() before exitshell() is called. This fixes the bug where + returning an error from a function running under set -e caused the exit + trap to be taken with evalskip set. + * Fixed quoting of empty strings in single_quote(). + * Show line numbers on all errors. + * Function names must be valid identifiers. + * Removed unused dependency on groff. + * Fixed race condition before entering a function. + * Fixed getopts initialisation for functions. + * Added memory barriers in INT macros. + * Banned empty compound lists in most places. + * Keep usage counters on functions (closes: #164234). + * Updated copyright file. + * Check evalskip in evalstring (closes: #165056). + * Merged changes from NetBSD 1.6: + . Added intmax support in printf(1). + . Implemented set -u. + + -- Herbert Xu <herbert@debian.org> Sat, 19 Oct 2002 14:23:11 +1000 + +dash (0.4.1) unstable; urgency=low + + * Removed extra new line in command -v output for aliases. + * Removed alais prefix in the output of alias. + * Recognise octal and hex numbers in arith expansion (closes: #151449). + * Added sh(1) entries for echo, printf and test (closes: #156446). + * Renamed to dash --- the Debian Almquist Shell. + * Cleaned up rules file (Matej Vela). + * Check mtime instead of size in chkmail per POSIX. + * Added support for LFS (closes: #157884). + * Added SuS options to cd and pwd (closes: #145828). + + -- Herbert Xu <herbert@debian.org> Fri, 13 Sep 2002 20:35:06 +1000 + +ash (0.3.8-38) unstable; urgency=low + + * Turned pre-dependency to dependency in udeb since the former is not allowed + (closes: #143749). + + -- Herbert Xu <herbert@debian.org> Sun, 28 Apr 2002 11:59:05 +1000 + +ash (0.3.8-37) unstable; urgency=low + + * Added Japanese debconf translation (Tomohiro KUBOTA, closes: #137431). + * Added missing escapes in manual page (Aaron Schrab, closes: #137966). + * Added Russian debconf translation (Ilgiz Kalmetev, closes: #137618). + * Fixed trap(1) documentation (closes: #140973). + * Do not abort if getcwd fails. + + -- Herbert Xu <herbert@debian.org> Wed, 3 Apr 2002 20:58:09 +1000 + +ash (0.3.8-36) unstable; urgency=low + + * Added library dependency for ash-udeb. + * Handle null case statements correctly. + * Fixed alias expansions in case statements (NetBSD). + * Disabled unused jobid command. + * Corrected documentation about shifting too much. + * Added French debconf translation (Denis Barbier, closes: #134625). + * Updated Spanish debconf translation (Carlos Valdivia, closes: #136366). + + -- Herbert Xu <herbert@debian.org> Sat, 2 Mar 2002 18:31:22 +1100 + +ash (0.3.8-35) unstable; urgency=low + + * Moved PWD initialisation into var.c (closes: #124032). + + -- Herbert Xu <herbert@debian.org> Mon, 24 Dec 2001 09:34:55 +1100 + +ash (0.3.8-34) unstable; urgency=low + + * NSEMI must be NOR + 1. + * Set exitstatus to zero before evaluating cases (closes: #124066). + * Explicitly set default answer of the ash/sh question to false so that + people whose debconf priority is set to low and who keeps banging on their + keyboards don't accidently end up with ash as /bin/sh. + + -- Herbert Xu <herbert@debian.org> Fri, 21 Dec 2001 20:30:49 +1100 + +ash (0.3.8-33) unstable; urgency=low + + * Added missing inclusion of bltin.h in bltin/times.c. + + -- Herbert Xu <herbert@debian.org> Thu, 13 Dec 2001 18:46:07 +1100 + +ash (0.3.8-32) unstable; urgency=low + + * Back slashes in expansions are now escaped (closes: #121516). + + -- Herbert Xu <herbert@debian.org> Wed, 28 Nov 2001 20:15:01 +1100 + +ash (0.3.8-31) unstable; urgency=low + + * Made sure all back slashes are escaped. + + -- Herbert Xu <herbert@debian.org> Mon, 26 Nov 2001 19:10:27 +1100 + +ash (0.3.8-30) unstable; urgency=low + + * Restored fnmatch(3) code. + * Treat escaped slashes correctly while globbing. + * Restored missing EV_EXIT check in evalcommand (closes: #120364). + * Fixed stack corruption in _rmescapes. + + -- Herbert Xu <herbert@debian.org> Sun, 25 Nov 2001 17:51:19 +1100 + +ash (0.3.8-29) unstable; urgency=low + + * Added missing va_end in fmtstr (NetBSD). + * Removed shellproc crap. + * Updated Swedish debconf translation (Mikael Hedin, closes: #116097). + * Updated German debconf translation (Andreas Metzler, closes: #117160). + * Break now treats illegal numbers according to SuS. + * Errors in special builtins now rise to the top. + * Normal redirection errors no longer abort the shell. + * Functions now have the same variable assignment properties as special + builtins. + + -- Herbert Xu <herbert@debian.org> Sat, 3 Nov 2001 11:36:36 +1100 + +ash (0.3.8-28) unstable; urgency=low + + * Local variables are now unset properly in shprocvar() (closes: #114917). + + -- Herbert Xu <herbert@debian.org> Sat, 13 Oct 2001 14:07:21 +1000 + +ash (0.3.8-27) unstable; urgency=low + + * Kill no longer aborts if it fails to kill someone. + + -- Herbert Xu <herbert@debian.org> Sun, 30 Sep 2001 22:20:36 +1000 + +ash (0.3.8-26) unstable; urgency=low + + * The sh.1.gz diversion now agrees with reality (closes: #113831). + + -- Herbert Xu <herbert@debian.org> Sat, 29 Sep 2001 08:43:27 +1000 + +ash (0.3.8-25) unstable; urgency=low + + * Only read ENV if the shell is interactive (closes: #110421). + + -- Herbert Xu <herbert@debian.org> Wed, 29 Aug 2001 19:18:53 +1000 + +ash (0.3.8-24) unstable; urgency=low + + * Handle SIGINT when waiting even if there is no trap (closes: #107699). + * Protect all makejob/forkshell/waitforjobs sequences from SIGINT. + * Work around gcc bug that generates bad ..ng references (closes: #107994). + + -- Herbert Xu <herbert@debian.org> Wed, 8 Aug 2001 20:28:28 +1000 + +ash (0.3.8-23) unstable; urgency=low + + * Fixed fence post error in scanleft (closes: #107229). + * Removed stunalloc in expname as it interferes with addfname. + * Fixed CTLESC skipping in scanright. + + -- Herbert Xu <herbert@debian.org> Thu, 2 Aug 2001 20:06:00 +1000 + +ash (0.3.8-22) unstable; urgency=low + + * Fixed trailing back slash bug in echo/printf (closes: #106693). + * Some quoted's are meant to be quotes. + * Added Brazilian translation (Andre Luis Lopes, closes: #107041). + + -- Herbert Xu <herbert@debian.org> Mon, 30 Jul 2001 20:21:52 +1000 + +ash (0.3.8-21) unstable; urgency=low + + * Fixed EV_EXIT/redirection bugs that caused core dumps. + + -- Herbert Xu <herbert@debian.org> Sat, 28 Jul 2001 17:03:28 +1000 + +ash (0.3.8-20) unstable; urgency=low + + * Don't save fd2 if job control is turned off. + * Don't push redirections when EV_EXIT is set. + * Fixed assignment recognition in the presence of back ticks. + * Combined checkkwd and checkalias. + + -- Herbert Xu <herbert@debian.org> Fri, 27 Jul 2001 22:29:41 +1000 + +ash (0.3.8-19) unstable; urgency=low + + * Recompute strings after growing in subevalvar (closes: #106050). + + -- Herbert Xu <herbert@debian.org> Mon, 23 Jul 2001 21:16:50 +1000 + +ash (0.3.8-18) unstable; urgency=low + + * Added more space optimisations for udeb on i386. + * Set stack mark in patmatch (closes: #106050). + * Fixed theoretical bug in expari. + + -- Herbert Xu <herbert@debian.org> Sat, 21 Jul 2001 20:08:15 +1000 + +ash (0.3.8-17) unstable; urgency=low + + * Don't complain about unknown escape codes in echo and printf + (closes: #105659). + * Updated build-time dependency on groff-base (closes: #105612). + + -- Herbert Xu <herbert@debian.org> Wed, 18 Jul 2001 19:33:20 +1000 + +ash (0.3.8-16) unstable; urgency=low + + * Fixed backslash bug in new pattern matching code. + + -- Herbert Xu <herbert@debian.org> Mon, 16 Jul 2001 21:47:39 +1000 + +ash (0.3.8-15) unstable; urgency=low + + * Added Swedish translation of templates (Martin Sjögren, closes: #103158). + * Restored escape code support in echo. + * Removed assignment builtins since it is at best undefined by the SuS and + also can't be implemented consistently. + * Removed extraneous volatile modifier (closes: #104518). + * General overhaul of word expansion (closes: #96588). + * Redirection prefixes no longer stop assignments from being recognised. + + -- Herbert Xu <herbert@debian.org> Sun, 15 Jul 2001 17:27:03 +1000 + +ash (0.3.8-14) unstable; urgency=low + + * Divert sh.1.gz to sh.distrib.1.gz (closes: #102251). + * Added HETIO support for ^D and ^U (Aaron Lehmann, closes: #102215). + * Added Spaniash translation of debconf templates (Carlos Valdivia Yagüe, + closes: #103040). + * Added versioned build-time dependency on groff. + + -- Herbert Xu <herbert@debian.org> Mon, 2 Jul 2001 19:32:03 +1000 + +ash (0.3.8-13) unstable; urgency=low + + * Fixed a bug where errors in pipelines which are part of andor lists were + not ignored when -e is in effect. + + -- Herbert Xu <herbert@debian.org> Mon, 25 Jun 2001 19:40:27 +1000 + +ash (0.3.8-12) unstable; urgency=low + + * Rewrote arith_lex.l in C (Aaron Lehmann, closes: #101741). + * && and || in arithmetic expansions now return either 0 or 1. + + -- Herbert Xu <herbert@debian.org> Sun, 24 Jun 2001 20:14:29 +1000 + +ash (0.3.8-11) unstable; urgency=low + + * Check for NULL argument in evaltree() (closes: #98865, #98867). + + -- Herbert Xu <herbert@debian.org> Sun, 27 May 2001 17:53:14 +1000 + +ash (0.3.8-10) unstable; urgency=low + + * Use /bin/ash in postinst to sidestep bugs in other shells (closes: #98739). + * Exit status is now tested on non-negated pipelines (closes: #98736). + + -- Herbert Xu <herbert@debian.org> Sat, 26 May 2001 23:56:07 +1000 + +ash (0.3.8-9) unstable; urgency=medium + + * IFS is now fetched using bltinlookup() again in read (closes: #98343). + * Divert sh(1) man page as well as /bin/sh (closes: #98525). + + -- Herbert Xu <herbert@debian.org> Fri, 25 May 2001 20:30:06 +1000 + +ash (0.3.8-8) unstable; urgency=low + + * Fixed diversion removal in prerm (duh, closes: #98031). + + -- Herbert Xu <herbert@debian.org> Mon, 21 May 2001 20:52:48 +1000 + +ash (0.3.8-7) unstable; urgency=low + + * Fixed diversion test in prerm (closes: #98031). + + -- Herbert Xu <herbert@debian.org> Sun, 20 May 2001 12:30:53 +1000 + +ash (0.3.8-6) unstable; urgency=low + + * Make sure that fd2 is closed when clearing redirects (closes: #96619). + * Fixed memory corruption in stunalloc(). + * The output of export/readonly/set is now correctly quoted. + * Fixed newline eating bug in expbackq(). + * Set OLDPWD. + * Removed ash-medium as neither bf or di uses it. + * Wait now waits for all its argument rather than the first one. + * Wait will exit with 129 when interrupted by a signal for a which a trap has + been set. + + -- Herbert Xu <herbert@debian.org> Fri, 18 May 2001 21:51:41 +1000 + +ash (0.3.8-5) unstable; urgency=low + + * Added German translation to template file (Sebastian Feltel, + closes: #96203). + * Added missing initialisation in setalias() (closes: #95433). + + -- Herbert Xu <herbert@debian.org> Fri, 4 May 2001 20:54:31 +1000 + +ash (0.3.8-4) unstable; urgency=low + + * Disabled fnmatch code as fnmatch(3) in glibc is broken. + * Fixed echo example in man page (Kalle Olavi Niemitalo, closes: #96014). + * Fixed trailing semicolon bug with eval (NetBSD). + * Fixed globbing inconsistency with broken symlinks (NetBSD). + + -- Herbert Xu <herbert@debian.org> Wed, 2 May 2001 22:57:16 +1000 + +ash (0.3.8-3) unstable; urgency=low + + * Work around broken autoconf scripts (closes: #95430). + + -- Herbert Xu <herbert@debian.org> Tue, 1 May 2001 18:27:50 +1000 + +ash (0.3.8-2) unstable; urgency=low + + * Save checkalias before calling xxreadtoken() (closes: #95628). + + -- Herbert Xu <herbert@debian.org> Sun, 29 Apr 2001 17:36:01 +1000 + +ash (0.3.8-1) unstable; urgency=low + + * NetBSD-current version as of 20010316. + * Removed code that sets IFS. + * Fixed memory leak with PWD. + * Set PPID. + * Fixed inconsistencies in alias expansion. + * Restored original output code. + * Enabled fnmatch code again. + * Added builtin printf. + * Offer to divert /bin/sh (closes: #70462). + + -- Herbert Xu <herbert@debian.org> Wed, 25 Apr 2001 22:32:39 +1000 + +ash (0.3.7-16) unstable; urgency=low + + * Fixed incorrect default IFS in readcmd (closes: #88950). + * Added missing return in hashcmd. + + -- Herbert Xu <herbert@debian.org> Fri, 9 Mar 2001 20:44:40 +1100 + +ash (0.3.7-15) unstable; urgency=low + + * Unknown escape codes are now prnted literally by echo (closes: #82869). + * Made hetio_read_input() fail if fd is not stdin. + * Some uses of VSQUOTE were really meant to be quotes (closes: #88777). + * Build different ashes in different subdirectories. + + -- Herbert Xu <herbert@debian.org> Thu, 8 Mar 2001 21:32:28 +1100 + +ash (0.3.7-14) unstable; urgency=low + + * Removed predependency from udeb (closes: #81995). + * Added /bin/sh symlink to udeb (closes: #81967). + + -- Herbert Xu <herbert@debian.org> Sat, 13 Jan 2001 15:23:21 +1100 + +ash (0.3.7-13) unstable; urgency=low + + * Renamed the udeb to ash-udeb. + + -- Herbert Xu <herbert@debian.org> Wed, 20 Dec 2000 19:32:34 +1100 + +ash (0.3.7-12) unstable; urgency=low + + * Added support for udebs (Randolph Chung, closes: #79237). + + -- Herbert Xu <herbert@debian.org> Sat, 16 Dec 2000 13:53:28 +1100 + +ash (0.3.7-11) unstable; urgency=low + + * Preserve the previous exit status upon entering a function + (closes: #78374). + + -- Herbert Xu <herbert@debian.org> Sun, 3 Dec 2000 13:34:27 +1100 + +ash (0.3.7-10) unstable; urgency=low + + * Merged changes for GNU from Igor Khavkine. + * Minimise the number of sigactions. + + -- Herbert Xu <herbert@debian.org> Fri, 3 Nov 2000 20:31:52 +1100 + +ash (0.3.7-9) unstable; urgency=low + + * Predepend on the libraries. + * Always save fd 2 when it is redirected (closes: #75302). + + -- Herbert Xu <herbert@debian.org> Sun, 22 Oct 2000 08:40:40 +1100 + +ash (0.3.7-8) unstable; urgency=high + + * More redirection fixes (closes: #73613). + + -- Herbert Xu <herbert@debian.org> Thu, 5 Oct 2000 18:22:17 +1100 + +ash (0.3.7-7) unstable; urgency=high + + * Added missing break in redirection code (closes: #72956). + + -- Herbert Xu <herbert@debian.org> Tue, 3 Oct 2000 07:58:04 +1100 + +ash (0.3.7-6) unstable; urgency=low + + * command -[vV] no longer displays an error message on stdout. + * Redirecting to /proc/self/fd/* now works (closes: #72852). + + -- Herbert Xu <herbert@debian.org> Sun, 1 Oct 2000 12:56:39 +1100 + +ash (0.3.7-5) unstable; urgency=low + + * Implemented set -a. + + -- Herbert Xu <herbert@debian.org> Sat, 30 Sep 2000 16:00:33 +1100 + +ash (0.3.7-4) unstable; urgency=low + + * Added build-time dependency on debhelper (closes: #69920). + * Extended maximum length of arithmetic expansions to match 32-bit integers. + + -- Herbert Xu <herbert@debian.org> Wed, 20 Sep 2000 14:28:16 +1100 + +ash (0.3.7-3) unstable; urgency=low + + * Switch to the old globbing code since glob(3) is hopelessly broken + (closes: #69455). + + -- Herbert Xu <herbert@debian.org> Mon, 21 Aug 2000 20:37:15 +1000 + +ash (0.3.7-2) unstable; urgency=low + + * Call glob(3) with GLOB_NOMAGIC (ouch). + + -- Herbert Xu <herbert@debian.org> Sun, 6 Aug 2000 17:47:08 +1000 + +ash (0.3.7-1) unstable; urgency=low + + * NetBSD-current version as of 20000729. + * Use fnmatch(3) and glob(3). + * Fixed the use of backslashes in the pattern in parameter substitutions, + hopefully for the last time. + * Applied HETIO patch and built ash.medium (closes: #50788). Will do ash.big + when readline is fixed so that it doesn't leak anymore. + + -- Herbert Xu <herbert@debian.org> Fri, 4 Aug 2000 21:36:44 +1000 + +ash (0.3.6-5) unstable; urgency=low + + * Fixed manpage entry for read with patch from Kevin Ryde (closes: #62500). + * Fixed a file descriptor leak for pipelines. + + -- Herbert Xu <herbert@debian.org> Wed, 19 Apr 2000 18:56:20 +1000 + +ash (0.3.6-4) unstable; urgency=low + + * Fixed the case of an empty command with redirections. + + -- Herbert Xu <herbert@debian.org> Fri, 7 Apr 2000 12:07:18 +1000 + +ash (0.3.6-3) unstable; urgency=low + + * ! is now recognised correctly. + * Ash is now more strict on the syntax, e.g., a lone ! is no longer accepted + as an alternative to ! true. + + -- Herbert Xu <herbert@debian.org> Fri, 7 Apr 2000 10:46:06 +1000 + +ash (0.3.6-2) unstable; urgency=low + + * Fixed a problem with fmtstr() which broke getopts. + + -- Herbert Xu <herbert@debian.org> Sun, 2 Apr 2000 10:49:26 +1000 + +ash (0.3.6-1) unstable; urgency=low + + * NetBSD-current version as of 20000326. + * Added a Build-Depends on groff (closes: #61041). + * Implemented noclobber (closes: #59028). + * Rewrote output.c to use stream IO. + + -- Herbert Xu <herbert@debian.org> Sat, 1 Apr 2000 19:24:31 +1000 + +ash (0.3.5-10) frozen unstable; urgency=low + + * Don't stat mail boxes in non-interactive mode (closes: #59213). + * Added an fflush(stdout) to the times builtin (closes: #59027). + * Documented the times builtin. + * Added source depends. + + -- Herbert Xu <herbert@debian.org> Sat, 18 Mar 2000 18:58:44 +1100 + +ash (0.3.5-9) unstable; urgency=low + + * Double quotes inside paramater substitutions inside double quotes are now + ignored as in bash (the originial behaviour was POSIX compliant too but + IMHO this one makes a little bit more sense). + This one broke mwm (but it was actually mwm's fault). + * Corrected backslash/CTLESC treatment for patterns in parameter + substitutions. + + -- Herbert Xu <herbert@debian.org> Sat, 6 Nov 1999 18:13:19 +1100 + +ash (0.3.5-8) unstable; urgency=low + + * Replaced use of echo -n in manual page with escape codes. + * Made FHS compliant (closes: #47978). + * Restored echo's option processing ability. + + -- Herbert Xu <herbert@debian.org> Fri, 22 Oct 1999 10:20:58 +1000 + +ash (0.3.5-7) unstable; urgency=low + + * echo no longer supports options. + * Don't quote patterns inside parameter substitutions enclosed by double + quotes (closes: #47842). + + -- Herbert Xu <herbert@debian.org> Wed, 20 Oct 1999 20:28:14 +1000 + +ash (0.3.5-6) unstable; urgency=low + + * Use getcwd() instead of /bin/pwd -- Zack Weinberg (closes: #46981). + + -- Herbert Xu <herbert@debian.org> Sun, 10 Oct 1999 16:31:49 +1000 + +ash (0.3.5-5) unstable; urgency=low + + * Only test for -e on simple commands (fixes #44559). + + -- Herbert Xu <herbert@debian.org> Wed, 8 Sep 1999 22:18:27 +1000 + +ash (0.3.5-4) unstable; urgency=low + + * Don't wait for stopped children if job control is disabled (fixes #42814). + * Allow an option '(' in a case statement (fixes #42364). + + -- Herbert Xu <herbert@debian.org> Thu, 12 Aug 1999 23:30:30 +1000 + +ash (0.3.5-3) unstable; urgency=low + + * OK, the fix to the esoteric problem in 0.3.5-1 actually breaks VSASSIGN + and VSQUESTION, they should work properly now (fixes #41327). + + -- Herbert Xu <herbert@debian.org> Thu, 15 Jul 1999 22:47:13 +1000 + +ash (0.3.5-2) unstable; urgency=low + + * PATH search and execution is now correct. + * hash no longer shows builtins. + * Added kill builtin. + * New description from James R. van Zandt reformatted by Josip Rodin. + + -- Herbert Xu <herbert@debian.org> Mon, 12 Jul 1999 18:51:42 +1000 + +ash (0.3.5-1) unstable; urgency=low + + * New upstream release. + * Adapted to new pmake (fixes #38737). + * Fixed behvaiour of backslashes preceding a closing brace for a parameter + substituion inside double quotes (even bash messes this one up :). + * Fixed command (fixes #34639). + * Fixed a pipe bug where stdin may be wrongly closed (fixes #35452). + * Revamped getopts (fixes #39694). + + -- Herbert Xu <herbert@debian.org> Sun, 4 Jul 1999 12:19:01 +1000 + +ash (0.3.4-7) unstable; urgency=low + + * Fixed a glibc 2.1 compatitibility problem. + * Fixed a PWD inconsistency that stuffed up the kernel compilation. + + -- Herbert Xu <herbert@debian.org> Mon, 17 May 1999 23:14:57 +1000 + +ash (0.3.4-6) unstable; urgency=low + + * Fixed incorrect -e test due to the last bug fix (fixes #26509). + + -- Herbert Xu <herbert@debian.org> Tue, 8 Sep 1998 10:02:46 +1000 + +ash (0.3.4-5) unstable; urgency=low + + * Use test_eaccess from bash instead of access(2) (fixes #26110). + + -- Herbert Xu <herbert@debian.org> Wed, 26 Aug 1998 21:22:49 +1000 + +ash (0.3.4-4) unstable; urgency=low + + * Only upload to unstable. + + -- Herbert Xu <herbert@debian.org> Tue, 5 May 1998 18:01:02 +1000 + +ash (0.3.4-3) frozen unstable; urgency=low + + * Applied sparc patch (fixes #21562). + + -- Herbert Xu <herbert@debian.org> Fri, 1 May 1998 19:48:13 +1000 + +ash (0.3.4-2) frozen unstable; urgency=low + + * Fixed the incorrect trap fixes (fixes #20363). + + -- Herbert Xu <herbert@debian.org> Thu, 16 Apr 1998 21:07:10 +1000 + +ash (0.3.4-1) unstable; urgency=low + + * New upstream release. + * Reverted word splitting change in 0.3.2-1 since the fix was broken and + major work (the quote removal is done too quickly at the moment) is needed + to fix it properly. + * Fixed more trap noncompliance. + + -- Herbert Xu <herbert@debian.org> Thu, 19 Mar 1998 22:59:12 +1100 + +ash (0.3.2-5) unstable; urgency=low + + * Fixed a bug when doing pattern matching in parameter expansions. + + -- Herbert Xu <herbert@debian.org> Tue, 10 Mar 1998 21:25:40 +1100 + +ash (0.3.2-4) unstable; urgency=low + + * Allow ] to be quoted in bracket expressions (fixes #17533). + * Move dh_fixperms to second last spot (fixes #18267). + * Don't do field splitting in evalfor. + + -- Herbert Xu <herbert@debian.org> Tue, 17 Feb 1998 13:32:09 +1100 + +ash (0.3.2-3) unstable; urgency=low + + * Fixed stupid core dump. + + -- Herbert Xu <herbert@debian.org> Wed, 11 Feb 1998 21:33:55 +1100 + +ash (0.3.2-2) unstable; urgency=low + + * Hack for special builtins (fixes #18055). + * Hack for command. + + -- Herbert Xu <herbert@debian.org> Wed, 11 Feb 1998 21:19:46 +1100 + +ash (0.3.2-1) unstable; urgency=low + + * NetBSD-current version as of 19980209. + * Fixed a word splitting problem after parameter expansion thanks to Alexey + Marinichev. + * Converted to debhelper (fixes #14612, #15005). + + -- Herbert Xu <herbert@debian.org> Mon, 9 Feb 1998 16:53:48 +1100 + +ash (0.3.1-20) unstable; urgency=low + + * Fixed -e problem with eval. + + -- Herbert Xu <herbert@debian.org> Sun, 7 Dec 1997 20:19:00 +1100 + +ash (0.3.1-19) unstable; urgency=low + + * Fixed -e problem with command substitution. + + -- Herbert Xu <herbert@debian.org> Sun, 7 Dec 1997 19:44:49 +1100 + +ash (0.3.1-18) unstable; urgency=low + + * Do not link with ncurses (#15485). + + -- Herbert Xu <herbert@debian.org> Sun, 30 Nov 1997 12:00:11 +1100 + +ash (0.3.1-17) unstable; urgency=low + + * Set PATH like bash (#15238). + + -- Herbert Xu <herbert@debian.org> Wed, 26 Nov 1997 16:17:27 +1100 + +ash (0.3.1-16) unstable; urgency=low + + * Fixed incorrect assignment builtin code. + + -- Herbert Xu <herbert@debian.org> Mon, 24 Nov 1997 16:19:10 +1100 + +ash (0.3.1-15) unstable; urgency=low + + * hash now returns error codes (needed by the Linux kernel). + + -- Herbert Xu <herbert@debian.org> Sun, 23 Nov 1997 21:37:08 +1100 + +ash (0.3.1-14) unstable; urgency=low + + * Disabled word-splitting for assignment builtins. + + -- Herbert Xu <herbert@debian.org> Sun, 23 Nov 1997 12:45:15 +1100 + +ash (0.3.1-13) unstable; urgency=low + + * ! is now recognised even after &&/||. + + -- Herbert Xu <herbert@debian.org> Fri, 21 Nov 1997 22:09:05 +1100 + +ash (0.3.1-12) unstable; urgency=low + + * More fixes to the handling of SIGINT when forking. + + -- Herbert Xu <herbert@debian.org> Fri, 14 Nov 1997 15:14:32 +1100 + +ash (0.3.1-11) unstable; urgency=low + + * Ignore SIGINT when forking non-interactively. + + -- Herbert Xu <herbert@debian.org> Mon, 3 Nov 1997 12:00:02 +1100 + +ash (0.3.1-10) unstable; urgency=low + + * echo now handles options correctly. + * echo nolonger returns 0 if erorrs occured while writing to stdout. + * New code from GNU echo merged. + * Error messages from test now work. + + -- Herbert Xu <herbert@debian.org> Wed, 8 Oct 1997 21:47:13 +1000 + +ash (0.3.1-9) unstable; urgency=low + + * ! is recognised at pipeline level like bash. + + -- Herbert Xu <herbert@debian.org> Mon, 15 Sep 1997 23:13:45 +1000 + +ash (0.3.1-8) unstable; urgency=medium + + * Old patch regarding SIGCHLD in again. + + -- Herbert Xu <herbert@debian.org> Sun, 31 Aug 1997 11:20:27 +1000 + +ash (0.3.1-7) unstable; urgency=low + + * /bin/sh -e is behaving even better now (for loops within conditionals). + + -- Herbert Xu <herbert@debian.org> Sat, 23 Aug 1997 22:08:19 +1000 + +ash (0.3.1-6) unstable; urgency=low + + * /bin/sh -e is behaving better now. + + -- Herbert Xu <herbert@debian.org> Sat, 23 Aug 1997 13:16:26 +1000 + +ash (0.3.1-5) unstable; urgency=low + + * hash -v /dir/command doesn't coredump anymore. + * type /dir/command now works correctly. + + -- Herbert Xu <herbert@debian.org> Fri, 1 Aug 1997 20:48:19 +1000 + +ash (0.3.1-4) unstable; urgency=low + + * trap now understands symbolic signal names. + + -- Herbert Xu <herbert@debian.org> Sat, 26 Jul 1997 14:04:46 +1000 + +ash (0.3.1-3) unstable; 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Make sure there is not a broken + alias in your environment]) + fi + if test "$[2]" = conftest.file || test $am_try -eq 2; then + break + fi + # Just in case. + sleep 1 + am_has_slept=yes + done + test "$[2]" = conftest.file + ) +then + # Ok. + : +else + AC_MSG_ERROR([newly created file is older than distributed files! +Check your system clock]) +fi +AC_MSG_RESULT([yes]) +# If we didn't sleep, we still need to ensure time stamps of config.status and +# generated files are strictly newer. +am_sleep_pid= +if grep 'slept: no' conftest.file >/dev/null 2>&1; then + ( sleep 1 ) & + am_sleep_pid=$! +fi +AC_CONFIG_COMMANDS_PRE( + [AC_MSG_CHECKING([that generated files are newer than configure]) + if test -n "$am_sleep_pid"; then + # Hide warnings about reused PIDs. + wait $am_sleep_pid 2>/dev/null + fi + AC_MSG_RESULT([done])]) +rm -f conftest.file +]) + +# Copyright (C) 2009-2020 Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# AM_SILENT_RULES([DEFAULT]) +# -------------------------- +# Enable less verbose build rules; with the default set to DEFAULT +# ("yes" being less verbose, "no" or empty being verbose). +AC_DEFUN([AM_SILENT_RULES], +[AC_ARG_ENABLE([silent-rules], [dnl +AS_HELP_STRING( + [--enable-silent-rules], + [less verbose build output (undo: "make V=1")]) +AS_HELP_STRING( + [--disable-silent-rules], + [verbose build output (undo: "make V=0")])dnl +]) +case $enable_silent_rules in @%:@ ((( + yes) AM_DEFAULT_VERBOSITY=0;; + no) AM_DEFAULT_VERBOSITY=1;; + *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);; +esac +dnl +dnl A few 'make' implementations (e.g., NonStop OS and NextStep) +dnl do not support nested variable expansions. +dnl See automake bug#9928 and bug#10237. +am_make=${MAKE-make} +AC_CACHE_CHECK([whether $am_make supports nested variables], + [am_cv_make_support_nested_variables], + [if AS_ECHO([['TRUE=$(BAR$(V)) +BAR0=false +BAR1=true +V=1 +am__doit: + @$(TRUE) +.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then + am_cv_make_support_nested_variables=yes +else + am_cv_make_support_nested_variables=no +fi]) +if test $am_cv_make_support_nested_variables = yes; then + dnl Using '$V' instead of '$(V)' breaks IRIX make. + AM_V='$(V)' + AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)' +else + AM_V=$AM_DEFAULT_VERBOSITY + AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY +fi +AC_SUBST([AM_V])dnl +AM_SUBST_NOTMAKE([AM_V])dnl +AC_SUBST([AM_DEFAULT_V])dnl +AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl +AC_SUBST([AM_DEFAULT_VERBOSITY])dnl +AM_BACKSLASH='\' +AC_SUBST([AM_BACKSLASH])dnl +_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl +]) + +# Copyright (C) 2001-2020 Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# AM_PROG_INSTALL_STRIP +# --------------------- +# One issue with vendor 'install' (even GNU) is that you can't +# specify the program used to strip binaries. This is especially +# annoying in cross-compiling environments, where the build's strip +# is unlikely to handle the host's binaries. +# Fortunately install-sh will honor a STRIPPROG variable, so we +# always use install-sh in "make install-strip", and initialize +# STRIPPROG with the value of the STRIP variable (set by the user). +AC_DEFUN([AM_PROG_INSTALL_STRIP], +[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl +# Installed binaries are usually stripped using 'strip' when the user +# run "make install-strip". However 'strip' might not be the right +# tool to use in cross-compilation environments, therefore Automake +# will honor the 'STRIP' environment variable to overrule this program. +dnl Don't test for $cross_compiling = yes, because it might be 'maybe'. +if test "$cross_compiling" != no; then + AC_CHECK_TOOL([STRIP], [strip], :) +fi +INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s" +AC_SUBST([INSTALL_STRIP_PROGRAM])]) + +# Copyright (C) 2006-2020 Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# _AM_SUBST_NOTMAKE(VARIABLE) +# --------------------------- +# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in. +# This macro is traced by Automake. +AC_DEFUN([_AM_SUBST_NOTMAKE]) + +# AM_SUBST_NOTMAKE(VARIABLE) +# -------------------------- +# Public sister of _AM_SUBST_NOTMAKE. +AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)]) + +# Check how to create a tarball. -*- Autoconf -*- + +# Copyright (C) 2004-2020 Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# _AM_PROG_TAR(FORMAT) +# -------------------- +# Check how to create a tarball in format FORMAT. +# FORMAT should be one of 'v7', 'ustar', or 'pax'. +# +# Substitute a variable $(am__tar) that is a command +# writing to stdout a FORMAT-tarball containing the directory +# $tardir. +# tardir=directory && $(am__tar) > result.tar +# +# Substitute a variable $(am__untar) that extract such +# a tarball read from stdin. +# $(am__untar) < result.tar +# +AC_DEFUN([_AM_PROG_TAR], +[# Always define AMTAR for backward compatibility. Yes, it's still used +# in the wild :-( We should find a proper way to deprecate it ... +AC_SUBST([AMTAR], ['$${TAR-tar}']) + +# We'll loop over all known methods to create a tar archive until one works. +_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none' + +m4_if([$1], [v7], + [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'], + + [m4_case([$1], + [ustar], + [# The POSIX 1988 'ustar' format is defined with fixed-size fields. + # There is notably a 21 bits limit for the UID and the GID. In fact, + # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343 + # and bug#13588). + am_max_uid=2097151 # 2^21 - 1 + am_max_gid=$am_max_uid + # The $UID and $GID variables are not portable, so we need to resort + # to the POSIX-mandated id(1) utility. Errors in the 'id' calls + # below are definitely unexpected, so allow the users to see them + # (that is, avoid stderr redirection). + am_uid=`id -u || echo unknown` + am_gid=`id -g || echo unknown` + AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format]) + if test $am_uid -le $am_max_uid; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + _am_tools=none + fi + AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format]) + if test $am_gid -le $am_max_gid; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + _am_tools=none + fi], + + [pax], + [], + + [m4_fatal([Unknown tar format])]) + + AC_MSG_CHECKING([how to create a $1 tar archive]) + + # Go ahead even if we have the value already cached. We do so because we + # need to set the values for the 'am__tar' and 'am__untar' variables. + _am_tools=${am_cv_prog_tar_$1-$_am_tools} + + for _am_tool in $_am_tools; do + case $_am_tool in + gnutar) + for _am_tar in tar gnutar gtar; do + AM_RUN_LOG([$_am_tar --version]) && break + done + am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' + am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' + am__untar="$_am_tar -xf -" + ;; + plaintar) + # Must skip GNU tar: if it does not support --format= it doesn't create + # ustar tarball either. + (tar --version) >/dev/null 2>&1 && continue + am__tar='tar chf - "$$tardir"' + am__tar_='tar chf - "$tardir"' + am__untar='tar xf -' + ;; + pax) + am__tar='pax -L -x $1 -w "$$tardir"' + am__tar_='pax -L -x $1 -w "$tardir"' + am__untar='pax -r' + ;; + cpio) + am__tar='find "$$tardir" -print | cpio -o -H $1 -L' + am__tar_='find "$tardir" -print | cpio -o -H $1 -L' + am__untar='cpio -i -H $1 -d' + ;; + none) + am__tar=false + am__tar_=false + am__untar=false + ;; + esac + + # If the value was cached, stop now. We just wanted to have am__tar + # and am__untar set. + test -n "${am_cv_prog_tar_$1}" && break + + # tar/untar a dummy directory, and stop if the command works. + rm -rf conftest.dir + mkdir conftest.dir + echo GrepMe > conftest.dir/file + AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) + rm -rf conftest.dir + if test -s conftest.tar; then + AM_RUN_LOG([$am__untar <conftest.tar]) + AM_RUN_LOG([cat conftest.dir/file]) + grep GrepMe conftest.dir/file >/dev/null 2>&1 && break + fi + done + rm -rf conftest.dir + + AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) + AC_MSG_RESULT([$am_cv_prog_tar_$1])]) + +AC_SUBST([am__tar]) +AC_SUBST([am__untar]) +]) # _AM_PROG_TAR + diff --git a/bin/dash/autogen.sh b/bin/dash/autogen.sh new file mode 100755 index 00000000..5e9006ca --- /dev/null +++ b/bin/dash/autogen.sh @@ -0,0 +1,6 @@ +#!/bin/sh + +aclocal \ +&& autoheader \ +&& automake --add-missing --copy \ +&& autoconf diff --git a/bin/dash/compile b/bin/dash/compile new file mode 100755 index 00000000..23fcba01 --- /dev/null +++ b/bin/dash/compile @@ -0,0 +1,348 @@ +#! /bin/sh +# Wrapper for compilers which do not understand '-c -o'. + +scriptversion=2018-03-07.03; # UTC + +# Copyright (C) 1999-2020 Free Software Foundation, Inc. +# Written by Tom Tromey <tromey@cygnus.com>. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <https://www.gnu.org/licenses/>. + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# This file is maintained in Automake, please report +# bugs to <bug-automake@gnu.org> or send patches to +# <automake-patches@gnu.org>. + +nl=' +' + +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent tools from complaining about whitespace usage. +IFS=" "" $nl" + +file_conv= + +# func_file_conv build_file lazy +# Convert a $build file to $host form and store it in $file +# Currently only supports Windows hosts. If the determined conversion +# type is listed in (the comma separated) LAZY, no conversion will +# take place. +func_file_conv () +{ + file=$1 + case $file in + / | /[!/]*) # absolute file, and not a UNC file + if test -z "$file_conv"; then + # lazily determine how to convert abs files + case `uname -s` in + MINGW*) + file_conv=mingw + ;; + CYGWIN* | MSYS*) + file_conv=cygwin + ;; + *) + file_conv=wine + ;; + esac + fi + case $file_conv/,$2, in + *,$file_conv,*) + ;; + mingw/*) + file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'` + ;; + cygwin/* | msys/*) + file=`cygpath -m "$file" || echo "$file"` + ;; + wine/*) + file=`winepath -w "$file" || echo "$file"` + ;; + esac + ;; + esac +} + +# func_cl_dashL linkdir +# Make cl look for libraries in LINKDIR +func_cl_dashL () +{ + func_file_conv "$1" + if test -z "$lib_path"; then + lib_path=$file + else + lib_path="$lib_path;$file" + fi + linker_opts="$linker_opts -LIBPATH:$file" +} + +# func_cl_dashl library +# Do a library search-path lookup for cl +func_cl_dashl () +{ + lib=$1 + found=no + save_IFS=$IFS + IFS=';' + for dir in $lib_path $LIB + do + IFS=$save_IFS + if $shared && test -f "$dir/$lib.dll.lib"; then + found=yes + lib=$dir/$lib.dll.lib + break + fi + if test -f "$dir/$lib.lib"; then + found=yes + lib=$dir/$lib.lib + break + fi + if test -f "$dir/lib$lib.a"; then + found=yes + lib=$dir/lib$lib.a + break + fi + done + IFS=$save_IFS + + if test "$found" != yes; then + lib=$lib.lib + fi +} + +# func_cl_wrapper cl arg... +# Adjust compile command to suit cl +func_cl_wrapper () +{ + # Assume a capable shell + lib_path= + shared=: + linker_opts= + for arg + do + if test -n "$eat"; then + eat= + else + case $1 in + -o) + # configure might choose to run compile as 'compile cc -o foo foo.c'. + eat=1 + case $2 in + *.o | *.[oO][bB][jJ]) + func_file_conv "$2" + set x "$@" -Fo"$file" + shift + ;; + *) + func_file_conv "$2" + set x "$@" -Fe"$file" + shift + ;; + esac + ;; + -I) + eat=1 + func_file_conv "$2" mingw + set x "$@" -I"$file" + shift + ;; + -I*) + func_file_conv "${1#-I}" mingw + set x "$@" -I"$file" + shift + ;; + -l) + eat=1 + func_cl_dashl "$2" + set x "$@" "$lib" + shift + ;; + -l*) + func_cl_dashl "${1#-l}" + set x "$@" "$lib" + shift + ;; + -L) + eat=1 + func_cl_dashL "$2" + ;; + -L*) + func_cl_dashL "${1#-L}" + ;; + -static) + shared=false + ;; + -Wl,*) + arg=${1#-Wl,} + save_ifs="$IFS"; IFS=',' + for flag in $arg; do + IFS="$save_ifs" + linker_opts="$linker_opts $flag" + done + IFS="$save_ifs" + ;; + -Xlinker) + eat=1 + linker_opts="$linker_opts $2" + ;; + -*) + set x "$@" "$1" + shift + ;; + *.cc | *.CC | *.cxx | *.CXX | *.[cC]++) + func_file_conv "$1" + set x "$@" -Tp"$file" + shift + ;; + *.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO]) + func_file_conv "$1" mingw + set x "$@" "$file" + shift + ;; + *) + set x "$@" "$1" + shift + ;; + esac + fi + shift + done + if test -n "$linker_opts"; then + linker_opts="-link$linker_opts" + fi + exec "$@" $linker_opts + exit 1 +} + +eat= + +case $1 in + '') + echo "$0: No command. Try '$0 --help' for more information." 1>&2 + exit 1; + ;; + -h | --h*) + cat <<\EOF +Usage: compile [--help] [--version] PROGRAM [ARGS] + +Wrapper for compilers which do not understand '-c -o'. +Remove '-o dest.o' from ARGS, run PROGRAM with the remaining +arguments, and rename the output as expected. + +If you are trying to build a whole package this is not the +right script to run: please start by reading the file 'INSTALL'. + +Report bugs to <bug-automake@gnu.org>. +EOF + exit $? + ;; + -v | --v*) + echo "compile $scriptversion" + exit $? + ;; + cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \ + icl | *[/\\]icl | icl.exe | *[/\\]icl.exe ) + func_cl_wrapper "$@" # Doesn't return... + ;; +esac + +ofile= +cfile= + +for arg +do + if test -n "$eat"; then + eat= + else + case $1 in + -o) + # configure might choose to run compile as 'compile cc -o foo foo.c'. + # So we strip '-o arg' only if arg is an object. + eat=1 + case $2 in + *.o | *.obj) + ofile=$2 + ;; + *) + set x "$@" -o "$2" + shift + ;; + esac + ;; + *.c) + cfile=$1 + set x "$@" "$1" + shift + ;; + *) + set x "$@" "$1" + shift + ;; + esac + fi + shift +done + +if test -z "$ofile" || test -z "$cfile"; then + # If no '-o' option was seen then we might have been invoked from a + # pattern rule where we don't need one. That is ok -- this is a + # normal compilation that the losing compiler can handle. If no + # '.c' file was seen then we are probably linking. That is also + # ok. + exec "$@" +fi + +# Name of file we expect compiler to create. +cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'` + +# Create the lock directory. +# Note: use '[/\\:.-]' here to ensure that we don't use the same name +# that we are using for the .o file. Also, base the name on the expected +# object file name, since that is what matters with a parallel build. +lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d +while true; do + if mkdir "$lockdir" >/dev/null 2>&1; then + break + fi + sleep 1 +done +# FIXME: race condition here if user kills between mkdir and trap. +trap "rmdir '$lockdir'; exit 1" 1 2 15 + +# Run the compile. +"$@" +ret=$? + +if test -f "$cofile"; then + test "$cofile" = "$ofile" || mv "$cofile" "$ofile" +elif test -f "${cofile}bj"; then + test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile" +fi + +rmdir "$lockdir" +exit $ret + +# Local Variables: +# mode: shell-script +# sh-indentation: 2 +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC0" +# time-stamp-end: "; # UTC" +# End: diff --git a/bin/dash/config.h.in b/bin/dash/config.h.in new file mode 100644 index 00000000..6fb0b3fb --- /dev/null +++ b/bin/dash/config.h.in @@ -0,0 +1,205 @@ +/* config.h.in. Generated from configure.ac by autoheader. */ + +/* Define if __attribute__((__alias__())) is supported */ +#undef HAVE_ALIAS_ATTRIBUTE + +/* Define to 1 if you have the <alloca.h> header file. */ +#undef HAVE_ALLOCA_H + +/* Define to 1 if you have the `bsearch' function. */ +#undef HAVE_BSEARCH + +/* Define to 1 if you have the declaration of `isblank', and to 0 if you + don't. */ +#undef HAVE_DECL_ISBLANK + +/* Define to 1 if you have the `faccessat' function. */ +#undef HAVE_FACCESSAT + +/* Define to 1 if you have the `fnmatch' function. */ +#undef HAVE_FNMATCH + +/* Define to 1 if you have the `getpwnam' function. */ +#undef HAVE_GETPWNAM + +/* Define to 1 if you have the `getrlimit' function. */ +#undef HAVE_GETRLIMIT + +/* Define to 1 if you have the `glob' function. */ +#undef HAVE_GLOB + +/* Define to 1 if you have the <inttypes.h> header file. */ +#undef HAVE_INTTYPES_H + +/* Define to 1 if you have the `isalpha' function. */ +#undef HAVE_ISALPHA + +/* Define to 1 if you have the `killpg' function. */ +#undef HAVE_KILLPG + +/* Define to 1 if you have the <memory.h> header file. */ +#undef HAVE_MEMORY_H + +/* Define to 1 if you have the `mempcpy' function. */ +#undef HAVE_MEMPCPY + +/* Define to 1 if you have the <paths.h> header file. */ +#undef HAVE_PATHS_H + +/* Define to 1 if you have the `sigsetmask' function. */ +#undef HAVE_SIGSETMASK + +/* Define to 1 if you have the <stdint.h> header file. */ +#undef HAVE_STDINT_H + +/* Define to 1 if you have the <stdlib.h> header file. */ +#undef HAVE_STDLIB_H + +/* Define to 1 if you have the `stpcpy' function. */ +#undef HAVE_STPCPY + +/* Define to 1 if you have the `strchrnul' function. */ +#undef HAVE_STRCHRNUL + +/* Define to 1 if you have the <strings.h> header file. */ +#undef HAVE_STRINGS_H + +/* Define to 1 if you have the <string.h> header file. */ +#undef HAVE_STRING_H + +/* Define to 1 if you have the `strsignal' function. */ +#undef HAVE_STRSIGNAL + +/* Define to 1 if you have the `strtod' function. */ +#undef HAVE_STRTOD + +/* Define to 1 if you have the `strtoimax' function. */ +#undef HAVE_STRTOIMAX + +/* Define to 1 if you have the `strtoumax' function. */ +#undef HAVE_STRTOUMAX + +/* Define if your `struct stat' has `st_mtim' */ +#undef HAVE_ST_MTIM + +/* Define to 1 if you have the `sysconf' function. */ +#undef HAVE_SYSCONF + +/* Define to 1 if you have the <sys/stat.h> header file. */ +#undef HAVE_SYS_STAT_H + +/* Define to 1 if you have the <sys/types.h> header file. */ +#undef HAVE_SYS_TYPES_H + +/* Define if your faccessat tells root all files are executable */ +#undef HAVE_TRADITIONAL_FACCESSAT + +/* Define to 1 if you have the <unistd.h> header file. */ +#undef HAVE_UNISTD_H + +/* Define to 1 if you have the `_el_fn_sh_complete' function. */ +#undef HAVE__EL_FN_SH_COMPLETE + +/* Name of package */ +#undef PACKAGE + +/* Define to the address where bug reports for this package should be sent. */ +#undef PACKAGE_BUGREPORT + +/* Define to the full name of this package. */ +#undef PACKAGE_NAME + +/* Define to the full name and version of this package. */ +#undef PACKAGE_STRING + +/* Define to the one symbol short name of this package. */ +#undef PACKAGE_TARNAME + +/* Define to the home page for this package. */ +#undef PACKAGE_URL + +/* Define to the version of this package. */ +#undef PACKAGE_VERSION + +/* Define to printf format string for intmax_t */ +#undef PRIdMAX + +/* The size of `intmax_t', as computed by sizeof. */ +#undef SIZEOF_INTMAX_T + +/* The size of `long long int', as computed by sizeof. */ +#undef SIZEOF_LONG_LONG_INT + +/* Define if you build with -DSMALL */ +#undef SMALL + +/* Define to 1 if you have the ANSI C header files. */ +#undef STDC_HEADERS + +/* Enable extensions on AIX 3, Interix. */ +#ifndef _ALL_SOURCE +# undef _ALL_SOURCE +#endif +/* Enable GNU extensions on systems that have them. */ +#ifndef _GNU_SOURCE +# undef _GNU_SOURCE +#endif +/* Enable threading extensions on Solaris. */ +#ifndef _POSIX_PTHREAD_SEMANTICS +# undef _POSIX_PTHREAD_SEMANTICS +#endif +/* Enable extensions on HP NonStop. */ +#ifndef _TANDEM_SOURCE +# undef _TANDEM_SOURCE +#endif +/* Enable general extensions on Solaris. */ +#ifndef __EXTENSIONS__ +# undef __EXTENSIONS__ +#endif + + +/* Version number of package */ +#undef VERSION + +/* Define if you build with -DWITH_LINENO */ +#undef WITH_LINENO + +/* Define to 1 if on MINIX. */ +#undef _MINIX + +/* Define to system shell path */ +#undef _PATH_BSHELL + +/* Define to devnull device node path */ +#undef _PATH_DEVNULL + +/* Define to tty device node path */ +#undef _PATH_TTY + +/* Define to 2 if the system does not provide POSIX.1 features except with + this defined. */ +#undef _POSIX_1_SOURCE + +/* Define to 1 if you need to in order for `stat' and other things to work. */ +#undef _POSIX_SOURCE + +/* 64-bit operations are the same as 32-bit */ +#undef dirent64 + +/* 64-bit operations are the same as 32-bit */ +#undef fstat64 + +/* 64-bit operations are the same as 32-bit */ +#undef lstat64 + +/* 64-bit operations are the same as 32-bit */ +#undef open64 + +/* 64-bit operations are the same as 32-bit */ +#undef readdir64 + +/* klibc has bsd_signal instead of signal */ +#undef signal + +/* 64-bit operations are the same as 32-bit */ +#undef stat64 diff --git a/bin/dash/configure b/bin/dash/configure new file mode 100755 index 00000000..83889b3b --- /dev/null +++ b/bin/dash/configure @@ -0,0 +1,6450 @@ +#! /bin/sh +# Guess values for system-dependent variables and create Makefiles. +# Generated by GNU Autoconf 2.69 for dash 0.5.11.2. +# +# +# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc. +# +# +# This configure script is free software; the Free Software Foundation +# gives unlimited permission to copy, distribute and modify it. +## -------------------- ## +## M4sh Initialization. ## +## -------------------- ## + +# Be more Bourne compatible +DUALCASE=1; export DUALCASE # for MKS sh +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi + + +as_nl=' +' +export as_nl +# Printing a long string crashes Solaris 7 /usr/bin/printf. +as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo +# Prefer a ksh shell builtin over an external printf program on Solaris, +# but without wasting forks for bash or zsh. +if test -z "$BASH_VERSION$ZSH_VERSION" \ + && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='print -r --' + as_echo_n='print -rn --' +elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='printf %s\n' + as_echo_n='printf %s' +else + if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then + as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"' + as_echo_n='/usr/ucb/echo -n' + else + as_echo_body='eval expr "X$1" : "X\\(.*\\)"' + as_echo_n_body='eval + arg=$1; + case $arg in #( + *"$as_nl"*) + expr "X$arg" : "X\\(.*\\)$as_nl"; + arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;; + esac; + expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl" + ' + export as_echo_n_body + as_echo_n='sh -c $as_echo_n_body as_echo' + fi + export as_echo_body + as_echo='sh -c $as_echo_body as_echo' +fi + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + +# IFS +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent editors from complaining about space-tab. +# (If _AS_PATH_WALK were called with IFS unset, it would disable word +# splitting by setting IFS to empty value.) +IFS=" "" $as_nl" + +# Find who we are. Look in the path if we contain no directory separator. +as_myself= +case $0 in #(( + *[\\/]* ) as_myself=$0 ;; + *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break + done +IFS=$as_save_IFS + + ;; +esac +# We did not find ourselves, most probably we were run as `sh COMMAND' +# in which case we are not to be found in the path. +if test "x$as_myself" = x; then + as_myself=$0 +fi +if test ! -f "$as_myself"; then + $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 + exit 1 +fi + +# Unset variables that we do not need and which cause bugs (e.g. in +# pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1" +# suppresses any "Segmentation fault" message there. '((' could +# trigger a bug in pdksh 5.2.14. +for as_var in BASH_ENV ENV MAIL MAILPATH +do eval test x\${$as_var+set} = xset \ + && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || : +done +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +LC_ALL=C +export LC_ALL +LANGUAGE=C +export LANGUAGE + +# CDPATH. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +# Use a proper internal environment variable to ensure we don't fall + # into an infinite loop, continuously re-executing ourselves. + if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then + _as_can_reexec=no; export _as_can_reexec; + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed `exec'. +$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2 +as_fn_exit 255 + fi + # We don't want this to propagate to other subprocesses. + { _as_can_reexec=; unset _as_can_reexec;} +if test "x$CONFIG_SHELL" = x; then + as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which + # is contrary to our usage. Disable this feature. + alias -g '\${1+\"\$@\"}'='\"\$@\"' + setopt NO_GLOB_SUBST +else + case \`(set -o) 2>/dev/null\` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi +" + as_required="as_fn_return () { (exit \$1); } +as_fn_success () { as_fn_return 0; } +as_fn_failure () { as_fn_return 1; } +as_fn_ret_success () { return 0; } +as_fn_ret_failure () { return 1; } + +exitcode=0 +as_fn_success || { exitcode=1; echo as_fn_success failed.; } +as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; } +as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; } +as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; } +if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then : + +else + exitcode=1; echo positional parameters were not saved. +fi +test x\$exitcode = x0 || exit 1 +test -x / || exit 1" + as_suggested=" as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO + as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO + eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" && + test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1 +test \$(( 1 + 1 )) = 2 || exit 1" + if (eval "$as_required") 2>/dev/null; then : + as_have_required=yes +else + as_have_required=no +fi + if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then : + +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +as_found=false +for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + as_found=: + case $as_dir in #( + /*) + for as_base in sh bash ksh sh5; do + # Try only shells that exist, to save several forks. + as_shell=$as_dir/$as_base + if { test -f "$as_shell" || test -f "$as_shell.exe"; } && + { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then : + CONFIG_SHELL=$as_shell as_have_required=yes + if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then : + break 2 +fi +fi + done;; + esac + as_found=false +done +$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } && + { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then : + CONFIG_SHELL=$SHELL as_have_required=yes +fi; } +IFS=$as_save_IFS + + + if test "x$CONFIG_SHELL" != x; then : + export CONFIG_SHELL + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed `exec'. +$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2 +exit 255 +fi + + if test x$as_have_required = xno; then : + $as_echo "$0: This script requires a shell more modern than all" + $as_echo "$0: the shells that I found on your system." + if test x${ZSH_VERSION+set} = xset ; then + $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should" + $as_echo "$0: be upgraded to zsh 4.3.4 or later." + else + $as_echo "$0: Please tell bug-autoconf@gnu.org about your system, +$0: including any error possibly output before this +$0: message. Then install a modern shell, or manually run +$0: the script under such a shell if you do have one." + fi + exit 1 +fi +fi +fi +SHELL=${CONFIG_SHELL-/bin/sh} +export SHELL +# Unset more variables known to interfere with behavior of common tools. +CLICOLOR_FORCE= GREP_OPTIONS= +unset CLICOLOR_FORCE GREP_OPTIONS + +## --------------------- ## +## M4sh Shell Functions. ## +## --------------------- ## +# as_fn_unset VAR +# --------------- +# Portably unset VAR. +as_fn_unset () +{ + { eval $1=; unset $1;} +} +as_unset=as_fn_unset + +# as_fn_set_status STATUS +# ----------------------- +# Set $? to STATUS, without forking. +as_fn_set_status () +{ + return $1 +} # as_fn_set_status + +# as_fn_exit STATUS +# ----------------- +# Exit the shell with STATUS, even in a "trap 0" or "set -e" context. +as_fn_exit () +{ + set +e + as_fn_set_status $1 + exit $1 +} # as_fn_exit + +# as_fn_mkdir_p +# ------------- +# Create "$as_dir" as a directory, including parents if necessary. +as_fn_mkdir_p () +{ + + case $as_dir in #( + -*) as_dir=./$as_dir;; + esac + test -d "$as_dir" || eval $as_mkdir_p || { + as_dirs= + while :; do + case $as_dir in #( + *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'( + *) as_qdir=$as_dir;; + esac + as_dirs="'$as_qdir' $as_dirs" + as_dir=`$as_dirname -- "$as_dir" || +$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$as_dir" : 'X\(//\)[^/]' \| \ + X"$as_dir" : 'X\(//\)$' \| \ + X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$as_dir" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + test -d "$as_dir" && break + done + test -z "$as_dirs" || eval "mkdir $as_dirs" + } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir" + + +} # as_fn_mkdir_p + +# as_fn_executable_p FILE +# ----------------------- +# Test if FILE is an executable regular file. +as_fn_executable_p () +{ + test -f "$1" && test -x "$1" +} # as_fn_executable_p +# as_fn_append VAR VALUE +# ---------------------- +# Append the text in VALUE to the end of the definition contained in VAR. Take +# advantage of any shell optimizations that allow amortized linear growth over +# repeated appends, instead of the typical quadratic growth present in naive +# implementations. +if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then : + eval 'as_fn_append () + { + eval $1+=\$2 + }' +else + as_fn_append () + { + eval $1=\$$1\$2 + } +fi # as_fn_append + +# as_fn_arith ARG... +# ------------------ +# Perform arithmetic evaluation on the ARGs, and store the result in the +# global $as_val. Take advantage of shells that can avoid forks. The arguments +# must be portable across $(()) and expr. +if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then : + eval 'as_fn_arith () + { + as_val=$(( $* )) + }' +else + as_fn_arith () + { + as_val=`expr "$@" || test $? -eq 1` + } +fi # as_fn_arith + + +# as_fn_error STATUS ERROR [LINENO LOG_FD] +# ---------------------------------------- +# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are +# provided, also output the error to LOG_FD, referencing LINENO. Then exit the +# script with STATUS, using 1 if that was 0. +as_fn_error () +{ + as_status=$1; test $as_status -eq 0 && as_status=1 + if test "$4"; then + as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 + fi + $as_echo "$as_me: error: $2" >&2 + as_fn_exit $as_status +} # as_fn_error + +if expr a : '\(a\)' >/dev/null 2>&1 && + test "X`expr 00001 : '.*\(...\)'`" = X001; then + as_expr=expr +else + as_expr=false +fi + +if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + +if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then + as_dirname=dirname +else + as_dirname=false +fi + +as_me=`$as_basename -- "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + + + as_lineno_1=$LINENO as_lineno_1a=$LINENO + as_lineno_2=$LINENO as_lineno_2a=$LINENO + eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" && + test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || { + # Blame Lee E. McMahon (1931-1989) for sed's syntax. :-) + sed -n ' + p + /[$]LINENO/= + ' <$as_myself | + sed ' + s/[$]LINENO.*/&-/ + t lineno + b + :lineno + N + :loop + s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/ + t loop + s/-\n.*// + ' >$as_me.lineno && + chmod +x "$as_me.lineno" || + { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; } + + # If we had to re-execute with $CONFIG_SHELL, we're ensured to have + # already done that, so ensure we don't try to do so again and fall + # in an infinite loop. This has already happened in practice. + _as_can_reexec=no; export _as_can_reexec + # Don't try to exec as it changes $[0], causing all sort of problems + # (the dirname of $[0] is not the place where we might find the + # original and so on. Autoconf is especially sensitive to this). + . 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Returns whether the value could be +# computed +ac_fn_c_compute_int () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + if test "$cross_compiling" = yes; then + # Depending upon the size, compute the lo and hi bounds. +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +int +main () +{ +static int test_array [1 - 2 * !(($2) >= 0)]; +test_array [0] = 0; +return test_array [0]; + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_lo=0 ac_mid=0 + while :; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +int +main () +{ +static int test_array [1 - 2 * !(($2) <= $ac_mid)]; +test_array [0] = 0; +return test_array [0]; + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_hi=$ac_mid; break +else + as_fn_arith $ac_mid + 1 && ac_lo=$as_val + if test $ac_lo -le $ac_mid; then + ac_lo= ac_hi= + break + fi + as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + done +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +int +main () +{ +static int test_array [1 - 2 * !(($2) < 0)]; +test_array [0] = 0; +return test_array [0]; + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_hi=-1 ac_mid=-1 + while :; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +int +main () +{ +static int test_array [1 - 2 * !(($2) >= $ac_mid)]; +test_array [0] = 0; +return test_array [0]; + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_lo=$ac_mid; break +else + as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val + if test $ac_mid -le $ac_hi; then + ac_lo= ac_hi= + break + fi + as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + done +else + ac_lo= ac_hi= +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +# Binary search between lo and hi bounds. +while test "x$ac_lo" != "x$ac_hi"; do + as_fn_arith '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo && ac_mid=$as_val + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +int +main () +{ +static int test_array [1 - 2 * !(($2) <= $ac_mid)]; +test_array [0] = 0; +return test_array [0]; + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_hi=$ac_mid +else + as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +done +case $ac_lo in #(( +?*) eval "$3=\$ac_lo"; ac_retval=0 ;; +'') ac_retval=1 ;; +esac + else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +static long int longval () { return $2; } +static unsigned long int ulongval () { return $2; } +#include <stdio.h> +#include <stdlib.h> +int +main () +{ + + FILE *f = fopen ("conftest.val", "w"); + if (! f) + return 1; + if (($2) < 0) + { + long int i = longval (); + if (i != ($2)) + return 1; + fprintf (f, "%ld", i); + } + else + { + unsigned long int i = ulongval (); + if (i != ($2)) + return 1; + fprintf (f, "%lu", i); + } + /* Do not output a trailing newline, as this causes \r\n confusion + on some platforms. */ + return ferror (f) || fclose (f) != 0; + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + echo >>conftest.val; read $3 <conftest.val; ac_retval=0 +else + ac_retval=1 +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +rm -f conftest.val + + fi + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + as_fn_set_status $ac_retval + +} # ac_fn_c_compute_int + +# ac_fn_c_check_func LINENO FUNC VAR +# ---------------------------------- +# Tests whether FUNC exists, setting the cache variable VAR accordingly +ac_fn_c_check_func () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 +$as_echo_n "checking for $2... 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But avoid the broken or +# incompatible versions: +# SysV /etc/install, /usr/sbin/install +# SunOS /usr/etc/install +# IRIX /sbin/install +# AIX /bin/install +# AmigaOS /C/install, which installs bootblocks on floppy discs +# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag +# AFS /usr/afsws/bin/install, which mishandles nonexistent args +# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff" +# OS/2's system install, which has a completely different semantic +# ./install, which can be erroneously created by make from ./install.sh. +# Reject install programs that cannot install multiple files. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5 +$as_echo_n "checking for a BSD-compatible install... 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It has an incompatible calling convention. + : + elif test $ac_prog = install && + grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then + # program-specific install script used by HP pwplus--don't use. + : + else + rm -rf conftest.one conftest.two conftest.dir + echo one > conftest.one + echo two > conftest.two + mkdir conftest.dir + if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" && + test -s conftest.one && test -s conftest.two && + test -s conftest.dir/conftest.one && + test -s conftest.dir/conftest.two + then + ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c" + break 3 + fi + fi + fi + done + done + ;; +esac + + done +IFS=$as_save_IFS + +rm -rf conftest.one conftest.two conftest.dir + +fi + if test "${ac_cv_path_install+set}" = set; then + INSTALL=$ac_cv_path_install + else + # As a last resort, use the slow shell script. Don't cache a + # value for INSTALL within a source directory, because that will + # break other packages using the cache if that directory is + # removed, or if the value is a relative name. + INSTALL=$ac_install_sh + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5 +$as_echo "$INSTALL" >&6; } + +# Use test -z because SunOS4 sh mishandles braces in ${var-val}. +# It thinks the first close brace ends the variable substitution. +test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}' + +test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}' + +test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644' + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5 +$as_echo_n "checking whether build environment is sane... " >&6; } +# Reject unsafe characters in $srcdir or the absolute working directory +# name. Accept space and tab only in the latter. +am_lf=' +' +case `pwd` in + *[\\\"\#\$\&\'\`$am_lf]*) + as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;; +esac +case $srcdir in + *[\\\"\#\$\&\'\`$am_lf\ \ ]*) + as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;; +esac + +# Do 'set' in a subshell so we don't clobber the current shell's +# arguments. Must try -L first in case configure is actually a +# symlink; some systems play weird games with the mod time of symlinks +# (eg FreeBSD returns the mod time of the symlink's containing +# directory). +if ( + am_has_slept=no + for am_try in 1 2; do + echo "timestamp, slept: $am_has_slept" > conftest.file + set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null` + if test "$*" = "X"; then + # -L didn't work. + set X `ls -t "$srcdir/configure" conftest.file` + fi + if test "$*" != "X $srcdir/configure conftest.file" \ + && test "$*" != "X conftest.file $srcdir/configure"; then + + # If neither matched, then we have a broken ls. This can happen + # if, for instance, CONFIG_SHELL is bash and it inherits a + # broken ls alias from the environment. This has actually + # happened. Such a system could not be considered "sane". + as_fn_error $? "ls -t appears to fail. Make sure there is not a broken + alias in your environment" "$LINENO" 5 + fi + if test "$2" = conftest.file || test $am_try -eq 2; then + break + fi + # Just in case. + sleep 1 + am_has_slept=yes + done + test "$2" = conftest.file + ) +then + # Ok. + : +else + as_fn_error $? "newly created file is older than distributed files! +Check your system clock" "$LINENO" 5 +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +# If we didn't sleep, we still need to ensure time stamps of config.status and +# generated files are strictly newer. +am_sleep_pid= +if grep 'slept: no' conftest.file >/dev/null 2>&1; then + ( sleep 1 ) & + am_sleep_pid=$! +fi + +rm -f conftest.file + +test "$program_prefix" != NONE && + program_transform_name="s&^&$program_prefix&;$program_transform_name" +# Use a double $ so make ignores it. +test "$program_suffix" != NONE && + program_transform_name="s&\$&$program_suffix&;$program_transform_name" +# Double any \ or $. +# By default was `s,x,x', remove it if useless. +ac_script='s/[\\$]/&&/g;s/;s,x,x,$//' +program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"` + +# Expand $ac_aux_dir to an absolute path. +am_aux_dir=`cd "$ac_aux_dir" && pwd` + +if test x"${MISSING+set}" != xset; then + MISSING="\${SHELL} '$am_aux_dir/missing'" +fi +# Use eval to expand $SHELL +if eval "$MISSING --is-lightweight"; then + am_missing_run="$MISSING " +else + am_missing_run= + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5 +$as_echo "$as_me: WARNING: 'missing' script is too old or missing" >&2;} +fi + +if test x"${install_sh+set}" != xset; then + case $am_aux_dir in + *\ * | *\ *) + install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;; + *) + install_sh="\${SHELL} $am_aux_dir/install-sh" + esac +fi + +# Installed binaries are usually stripped using 'strip' when the user +# run "make install-strip". However 'strip' might not be the right +# tool to use in cross-compilation environments, therefore Automake +# will honor the 'STRIP' environment variable to overrule this program. +if test "$cross_compiling" != no; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. +set dummy ${ac_tool_prefix}strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$STRIP"; then + ac_cv_prog_STRIP="$STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_STRIP="${ac_tool_prefix}strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +STRIP=$ac_cv_prog_STRIP +if test -n "$STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5 +$as_echo "$STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_STRIP"; then + ac_ct_STRIP=$STRIP + # Extract the first word of "strip", so it can be a program name with args. +set dummy strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_STRIP"; then + ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_STRIP="strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP +if test -n "$ac_ct_STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5 +$as_echo "$ac_ct_STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_STRIP" = x; then + STRIP=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + STRIP=$ac_ct_STRIP + fi +else + STRIP="$ac_cv_prog_STRIP" +fi + +fi +INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s" + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a thread-safe mkdir -p" >&5 +$as_echo_n "checking for a thread-safe mkdir -p... " >&6; } +if test -z "$MKDIR_P"; then + if ${ac_cv_path_mkdir+:} false; then : + $as_echo_n "(cached) " >&6 +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in mkdir gmkdir; do + for ac_exec_ext in '' $ac_executable_extensions; do + as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue + case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #( + 'mkdir (GNU coreutils) '* | \ + 'mkdir (coreutils) '* | \ + 'mkdir (fileutils) '4.1*) + ac_cv_path_mkdir=$as_dir/$ac_prog$ac_exec_ext + break 3;; + esac + done + done + done +IFS=$as_save_IFS + +fi + + test -d ./--version && rmdir ./--version + if test "${ac_cv_path_mkdir+set}" = set; then + MKDIR_P="$ac_cv_path_mkdir -p" + else + # As a last resort, use the slow shell script. Don't cache a + # value for MKDIR_P within a source directory, because that will + # break other packages using the cache if that directory is + # removed, or if the value is a relative name. + MKDIR_P="$ac_install_sh -d" + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5 +$as_echo "$MKDIR_P" >&6; } + +for ac_prog in gawk mawk nawk awk +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_AWK+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$AWK"; then + ac_cv_prog_AWK="$AWK" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_AWK="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +AWK=$ac_cv_prog_AWK +if test -n "$AWK"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5 +$as_echo "$AWK" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$AWK" && break +done + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5 +$as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; } +set x ${MAKE-make} +ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'` +if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat >conftest.make <<\_ACEOF +SHELL = /bin/sh +all: + @echo '@@@%%%=$(MAKE)=@@@%%%' +_ACEOF +# GNU make sometimes prints "make[1]: Entering ...", which would confuse us. +case `${MAKE-make} -f conftest.make 2>/dev/null` in + *@@@%%%=?*=@@@%%%*) + eval ac_cv_prog_make_${ac_make}_set=yes;; + *) + eval ac_cv_prog_make_${ac_make}_set=no;; +esac +rm -f conftest.make +fi +if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + SET_MAKE= +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + SET_MAKE="MAKE=${MAKE-make}" +fi + +rm -rf .tst 2>/dev/null +mkdir .tst 2>/dev/null +if test -d .tst; then + am__leading_dot=. +else + am__leading_dot=_ +fi +rmdir .tst 2>/dev/null + +# Check whether --enable-silent-rules was given. +if test "${enable_silent_rules+set}" = set; then : + enableval=$enable_silent_rules; +fi + +case $enable_silent_rules in # ((( + yes) AM_DEFAULT_VERBOSITY=0;; + no) AM_DEFAULT_VERBOSITY=1;; + *) AM_DEFAULT_VERBOSITY=1;; +esac +am_make=${MAKE-make} +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5 +$as_echo_n "checking whether $am_make supports nested variables... " >&6; } +if ${am_cv_make_support_nested_variables+:} false; then : + $as_echo_n "(cached) " >&6 +else + if $as_echo 'TRUE=$(BAR$(V)) +BAR0=false +BAR1=true +V=1 +am__doit: + @$(TRUE) +.PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then + am_cv_make_support_nested_variables=yes +else + am_cv_make_support_nested_variables=no +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5 +$as_echo "$am_cv_make_support_nested_variables" >&6; } +if test $am_cv_make_support_nested_variables = yes; then + AM_V='$(V)' + AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)' +else + AM_V=$AM_DEFAULT_VERBOSITY + AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY +fi +AM_BACKSLASH='\' + +if test "`cd $srcdir && pwd`" != "`pwd`"; then + # Use -I$(srcdir) only when $(srcdir) != ., so that make's output + # is not polluted with repeated "-I." + am__isrc=' -I$(srcdir)' + # test to see if srcdir already configured + if test -f $srcdir/config.status; then + as_fn_error $? "source directory already configured; run \"make distclean\" there first" "$LINENO" 5 + fi +fi + +# test whether we have cygpath +if test -z "$CYGPATH_W"; then + if (cygpath --version) >/dev/null 2>/dev/null; then + CYGPATH_W='cygpath -w' + else + CYGPATH_W=echo + fi +fi + + +# Define the identity of the package. + PACKAGE='dash' + VERSION='0.5.11.2' + + +cat >>confdefs.h <<_ACEOF +#define PACKAGE "$PACKAGE" +_ACEOF + + +cat >>confdefs.h <<_ACEOF +#define VERSION "$VERSION" +_ACEOF + +# Some tools Automake needs. + +ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"} + + +AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"} + + +AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"} + + +AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"} + + +MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"} + +# For better backward compatibility. To be removed once Automake 1.9.x +# dies out for good. For more background, see: +# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html> +# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html> +mkdir_p='$(MKDIR_P)' + +# We need awk for the "check" target (and possibly the TAP driver). The +# system "awk" is bad on some platforms. +# Always define AMTAR for backward compatibility. Yes, it's still used +# in the wild :-( We should find a proper way to deprecate it ... +AMTAR='$${TAR-tar}' + + +# We'll loop over all known methods to create a tar archive until one works. +_am_tools='gnutar pax cpio none' + +am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -' + + + + + + +# POSIX will say in a future version that running "rm -f" with no argument +# is OK; and we want to be able to make that assumption in our Makefile +# recipes. So use an aggressive probe to check that the usage we want is +# actually supported "in the wild" to an acceptable degree. +# See automake bug#10828. +# To make any issue more visible, cause the running configure to be aborted +# by default if the 'rm' program in use doesn't match our expectations; the +# user can still override this though. +if rm -f && rm -fr && rm -rf; then : OK; else + cat >&2 <<'END' +Oops! + +Your 'rm' program seems unable to run without file operands specified +on the command line, even when the '-f' option is present. This is contrary +to the behaviour of most rm programs out there, and not conforming with +the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542> + +Please tell bug-automake@gnu.org about your system, including the value +of your $PATH and any error possibly output before this message. This +can help us improve future automake versions. + +END + if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then + echo 'Configuration will proceed anyway, since you have set the' >&2 + echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2 + echo >&2 + else + cat >&2 <<'END' +Aborting the configuration process, to ensure you take notice of the issue. + +You can download and install GNU coreutils to get an 'rm' implementation +that behaves properly: <https://www.gnu.org/software/coreutils/>. + +If you want to complete the configuration process using your problematic +'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM +to "yes", and re-run configure. + +END + as_fn_error $? "Your 'rm' program is bad, sorry." "$LINENO" 5 + fi +fi + + + +ac_config_headers="$ac_config_headers config.h" + + +# Check whether --enable-silent-rules was given. +if test "${enable_silent_rules+set}" = set; then : + enableval=$enable_silent_rules; +fi + +case $enable_silent_rules in # ((( + yes) AM_DEFAULT_VERBOSITY=0;; + no) AM_DEFAULT_VERBOSITY=1;; + *) AM_DEFAULT_VERBOSITY=0;; +esac +am_make=${MAKE-make} +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5 +$as_echo_n "checking whether $am_make supports nested variables... " >&6; } +if ${am_cv_make_support_nested_variables+:} false; then : + $as_echo_n "(cached) " >&6 +else + if $as_echo 'TRUE=$(BAR$(V)) +BAR0=false +BAR1=true +V=1 +am__doit: + @$(TRUE) +.PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then + am_cv_make_support_nested_variables=yes +else + am_cv_make_support_nested_variables=no +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5 +$as_echo "$am_cv_make_support_nested_variables" >&6; } +if test $am_cv_make_support_nested_variables = yes; then + AM_V='$(V)' + AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)' +else + AM_V=$AM_DEFAULT_VERBOSITY + AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY +fi +AM_BACKSLASH='\' + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args. +set dummy ${ac_tool_prefix}gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "gcc", so it can be a program name with args. +set dummy gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +else + CC="$ac_cv_prog_CC" +fi + +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. +set dummy ${ac_tool_prefix}cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + fi +fi +if test -z "$CC"; then + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + ac_prog_rejected=no +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then + ac_prog_rejected=yes + continue + fi + ac_cv_prog_CC="cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +if test $ac_prog_rejected = yes; then + # We found a bogon in the path, so make sure we never use it. + set dummy $ac_cv_prog_CC + shift + if test $# != 0; then + # We chose a different compiler from the bogus one. + # However, it has the same basename, so the bogon will be chosen + # first if we set CC to just the basename; use the full file name. + shift + ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" + fi +fi +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + for ac_prog in cl.exe + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$CC" && break + done +fi +if test -z "$CC"; then + ac_ct_CC=$CC + for ac_prog in cl.exe +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_CC" && break +done + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +fi + +fi + + +test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "no acceptable C compiler found in \$PATH +See \`config.log' for more details" "$LINENO" 5; } + +# Provide some information about the compiler. +$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5 +set X $ac_compile +ac_compiler=$2 +for ac_option in --version -v -V -qversion; do + { { ac_try="$ac_compiler $ac_option >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compiler $ac_option >&5") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + sed '10a\ +... rest of stderr output deleted ... + 10q' conftest.err >conftest.er1 + cat conftest.er1 >&5 + fi + rm -f conftest.er1 conftest.err + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +done + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +ac_clean_files_save=$ac_clean_files +ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out" +# Try to create an executable without -o first, disregard a.out. +# It will help us diagnose broken compilers, and finding out an intuition +# of exeext. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5 +$as_echo_n "checking whether the C compiler works... " >&6; } +ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'` + +# The possible output files: +ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*" + +ac_rmfiles= +for ac_file in $ac_files +do + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;; + * ) ac_rmfiles="$ac_rmfiles $ac_file";; + esac +done +rm -f $ac_rmfiles + +if { { ac_try="$ac_link_default" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link_default") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then : + # Autoconf-2.13 could set the ac_cv_exeext variable to `no'. +# So ignore a value of `no', otherwise this would lead to `EXEEXT = no' +# in a Makefile. We should not override ac_cv_exeext if it was cached, +# so that the user can short-circuit this test for compilers unknown to +# Autoconf. +for ac_file in $ac_files '' +do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) + ;; + [ab].out ) + # We found the default executable, but exeext='' is most + # certainly right. + break;; + *.* ) + if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no; + then :; else + ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + fi + # We set ac_cv_exeext here because the later test for it is not + # safe: cross compilers may not add the suffix if given an `-o' + # argument, so we may need to know it at that point already. + # Even if this section looks crufty: it has the advantage of + # actually working. + break;; + * ) + break;; + esac +done +test "$ac_cv_exeext" = no && ac_cv_exeext= + +else + ac_file='' +fi +if test -z "$ac_file"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +$as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error 77 "C compiler cannot create executables +See \`config.log' for more details" "$LINENO" 5; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5 +$as_echo_n "checking for C compiler default output file name... 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For instance with Cygwin, `ls conftest' will +# work properly (i.e., refer to `conftest.exe'), while it won't with +# `rm'. +for ac_file in conftest.exe conftest conftest.*; do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;; + *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + break;; + * ) break;; + esac +done +else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot compute suffix of executables: cannot compile and link +See \`config.log' for more details" "$LINENO" 5; } +fi +rm -f conftest conftest$ac_cv_exeext +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5 +$as_echo "$ac_cv_exeext" >&6; } + +rm -f conftest.$ac_ext +EXEEXT=$ac_cv_exeext +ac_exeext=$EXEEXT +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <stdio.h> +int +main () +{ +FILE *f = fopen ("conftest.out", "w"); + return ferror (f) || fclose (f) != 0; + + ; + return 0; +} +_ACEOF +ac_clean_files="$ac_clean_files conftest.out" +# Check that the compiler produces executables we can run. If not, either +# the compiler is broken, or we cross compile. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5 +$as_echo_n "checking whether we are cross compiling... " >&6; } +if test "$cross_compiling" != yes; then + { { ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + if { ac_try='./conftest$ac_cv_exeext' + { { case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then + cross_compiling=no + else + if test "$cross_compiling" = maybe; then + cross_compiling=yes + else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot run C compiled programs. +If you meant to cross compile, use \`--host'. +See \`config.log' for more details" "$LINENO" 5; } + fi + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5 +$as_echo "$cross_compiling" >&6; } + +rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out +ac_clean_files=$ac_clean_files_save +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5 +$as_echo_n "checking for suffix of object files... " >&6; } +if ${ac_cv_objext+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.o conftest.obj +if { { ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compile") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then : + for ac_file in conftest.o conftest.obj conftest.*; do + test -f "$ac_file" || continue; + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;; + *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'` + break;; + esac +done +else + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? 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" >&6; } +if ${ac_cv_path_GREP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -z "$GREP"; then + ac_path_GREP_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in grep ggrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_GREP" || continue +# Check for GNU ac_path_GREP and select it if it is found. + # Check for GNU $ac_path_GREP +case `"$ac_path_GREP" --version 2>&1` in +*GNU*) + ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo 'GREP' >> "conftest.nl" + "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_GREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_GREP="$ac_path_GREP" + ac_path_GREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_GREP_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_GREP"; then + as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 + fi +else + ac_cv_path_GREP=$GREP +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5 +$as_echo "$ac_cv_path_GREP" >&6; } + GREP="$ac_cv_path_GREP" + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5 +$as_echo_n "checking for egrep... " >&6; } +if ${ac_cv_path_EGREP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if echo a | $GREP -E '(a|b)' >/dev/null 2>&1 + then ac_cv_path_EGREP="$GREP -E" + else + if test -z "$EGREP"; then + ac_path_EGREP_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in egrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_EGREP" || continue +# Check for GNU ac_path_EGREP and select it if it is found. + # Check for GNU $ac_path_EGREP +case `"$ac_path_EGREP" --version 2>&1` in +*GNU*) + ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo 'EGREP' >> "conftest.nl" + "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_EGREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_EGREP="$ac_path_EGREP" + ac_path_EGREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_EGREP_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_EGREP"; then + as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 + fi +else + ac_cv_path_EGREP=$EGREP +fi + + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5 +$as_echo "$ac_cv_path_EGREP" >&6; } + EGREP="$ac_cv_path_EGREP" + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5 +$as_echo_n "checking for ANSI C header files... " >&6; } +if ${ac_cv_header_stdc+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <float.h> + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_header_stdc=yes +else + ac_cv_header_stdc=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +if test $ac_cv_header_stdc = yes; then + # SunOS 4.x string.h does not declare mem*, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <string.h> + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "memchr" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <stdlib.h> + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "free" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. + if test "$cross_compiling" = yes; then : + : +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <ctype.h> +#include <stdlib.h> +#if ((' ' & 0x0FF) == 0x020) +# define ISLOWER(c) ('a' <= (c) && (c) <= 'z') +# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) +#else +# define ISLOWER(c) \ + (('a' <= (c) && (c) <= 'i') \ + || ('j' <= (c) && (c) <= 'r') \ + || ('s' <= (c) && (c) <= 'z')) +# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) +#endif + +#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) +int +main () +{ + int i; + for (i = 0; i < 256; i++) + if (XOR (islower (i), ISLOWER (i)) + || toupper (i) != TOUPPER (i)) + return 2; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + +else + ac_cv_header_stdc=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5 +$as_echo "$ac_cv_header_stdc" >&6; } +if test $ac_cv_header_stdc = yes; then + +$as_echo "#define STDC_HEADERS 1" >>confdefs.h + +fi + +# On IRIX 5.3, sys/types and inttypes.h are conflicting. +for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ + inttypes.h stdint.h unistd.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default +" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + + + ac_fn_c_check_header_mongrel "$LINENO" "minix/config.h" "ac_cv_header_minix_config_h" "$ac_includes_default" +if test "x$ac_cv_header_minix_config_h" = xyes; then : + MINIX=yes +else + MINIX= +fi + + + if test "$MINIX" = yes; then + +$as_echo "#define _POSIX_SOURCE 1" >>confdefs.h + + +$as_echo "#define _POSIX_1_SOURCE 2" >>confdefs.h + + +$as_echo "#define _MINIX 1" >>confdefs.h + + fi + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether it is safe to define __EXTENSIONS__" >&5 +$as_echo_n "checking whether it is safe to define __EXTENSIONS__... " >&6; } +if ${ac_cv_safe_to_define___extensions__+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +# define __EXTENSIONS__ 1 + $ac_includes_default +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_safe_to_define___extensions__=yes +else + ac_cv_safe_to_define___extensions__=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_safe_to_define___extensions__" >&5 +$as_echo "$ac_cv_safe_to_define___extensions__" >&6; } + test $ac_cv_safe_to_define___extensions__ = yes && + $as_echo "#define __EXTENSIONS__ 1" >>confdefs.h + + $as_echo "#define _ALL_SOURCE 1" >>confdefs.h + + $as_echo "#define _GNU_SOURCE 1" >>confdefs.h + + $as_echo "#define _POSIX_PTHREAD_SEMANTICS 1" >>confdefs.h + + $as_echo "#define _TANDEM_SOURCE 1" >>confdefs.h + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for build system compiler" >&5 +$as_echo_n "checking for build system compiler... " >&6; } +if test "$cross_compiling" = yes; then + CC_FOR_BUILD=${CC_FOR_BUILD-cc} +else + CC_FOR_BUILD=${CC} +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${CC_FOR_BUILD}" >&5 +$as_echo "${CC_FOR_BUILD}" >&6; } + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __attribute__((__alias__()))" >&5 +$as_echo_n "checking for __attribute__((__alias__()))... " >&6; } +dash_cv_have_attribute_alias=no +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +void t() {} + void a() __attribute__((__alias__("t"))); +int +main () +{ +a(); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + dash_cv_have_attribute_alias=yes +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dash_cv_have_attribute_alias" >&5 +$as_echo "$dash_cv_have_attribute_alias" >&6; } +if test "x$dash_cv_have_attribute_alias" = xyes; then + +$as_echo "#define HAVE_ALIAS_ATTRIBUTE 1" >>confdefs.h + +fi + +# Check whether --enable-static was given. +if test "${enable_static+set}" = set; then : + enableval=$enable_static; +fi + +if test "$enable_static" = "yes"; then + export LDFLAGS="-static -Wl,--fatal-warnings" +fi + +# Check whether --enable-fnmatch was given. +if test "${enable_fnmatch+set}" = set; then : + enableval=$enable_fnmatch; +fi + +# Check whether --enable-glob was given. +if test "${enable_glob+set}" = set; then : + enableval=$enable_glob; +fi + + + +for ac_header in alloca.h paths.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + +ac_fn_c_check_decl "$LINENO" "_PATH_BSHELL" "ac_cv_have_decl__PATH_BSHELL" " +#ifdef HAVE_PATHS_H +#include <paths.h> +#endif + +" +if test "x$ac_cv_have_decl__PATH_BSHELL" = xyes; then : + +else + +cat >>confdefs.h <<_ACEOF +#define _PATH_BSHELL "/bin/sh" +_ACEOF + +fi + +ac_fn_c_check_decl "$LINENO" "_PATH_DEVNULL" "ac_cv_have_decl__PATH_DEVNULL" " +#ifdef HAVE_PATHS_H +#include <paths.h> +#endif + +" +if test "x$ac_cv_have_decl__PATH_DEVNULL" = xyes; then : + +else + +cat >>confdefs.h <<_ACEOF +#define _PATH_DEVNULL "/dev/null" +_ACEOF + +fi + +ac_fn_c_check_decl "$LINENO" "_PATH_TTY" "ac_cv_have_decl__PATH_TTY" " +#ifdef HAVE_PATHS_H +#include <paths.h> +#endif + +" +if test "x$ac_cv_have_decl__PATH_TTY" = xyes; then : + +else + +cat >>confdefs.h <<_ACEOF +#define _PATH_TTY "/dev/tty" +_ACEOF + +fi + + +ac_fn_c_check_decl "$LINENO" "isblank" "ac_cv_have_decl_isblank" "#include <ctype.h> +" +if test "x$ac_cv_have_decl_isblank" = xyes; then : + ac_have_decl=1 +else + ac_have_decl=0 +fi + +cat >>confdefs.h <<_ACEOF +#define HAVE_DECL_ISBLANK $ac_have_decl +_ACEOF + + +# The cast to long int works around a bug in the HP C Compiler +# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects +# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. +# This bug is HP SR number 8606223364. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of intmax_t" >&5 +$as_echo_n "checking size of intmax_t... " >&6; } +if ${ac_cv_sizeof_intmax_t+:} false; then : + $as_echo_n "(cached) " >&6 +else + if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (intmax_t))" "ac_cv_sizeof_intmax_t" "$ac_includes_default"; then : + +else + if test "$ac_cv_type_intmax_t" = yes; then + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error 77 "cannot compute sizeof (intmax_t) +See \`config.log' for more details" "$LINENO" 5; } + else + ac_cv_sizeof_intmax_t=0 + fi +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_intmax_t" >&5 +$as_echo "$ac_cv_sizeof_intmax_t" >&6; } + + + +cat >>confdefs.h <<_ACEOF +#define SIZEOF_INTMAX_T $ac_cv_sizeof_intmax_t +_ACEOF + + +# The cast to long int works around a bug in the HP C Compiler +# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects +# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. +# This bug is HP SR number 8606223364. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of long long int" >&5 +$as_echo_n "checking size of long long int... " >&6; } +if ${ac_cv_sizeof_long_long_int+:} false; then : + $as_echo_n "(cached) " >&6 +else + if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long long int))" "ac_cv_sizeof_long_long_int" "$ac_includes_default"; then : + +else + if test "$ac_cv_type_long_long_int" = yes; then + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error 77 "cannot compute sizeof (long long int) +See \`config.log' for more details" "$LINENO" 5; } + else + ac_cv_sizeof_long_long_int=0 + fi +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long_long_int" >&5 +$as_echo "$ac_cv_sizeof_long_long_int" >&6; } + + + +cat >>confdefs.h <<_ACEOF +#define SIZEOF_LONG_LONG_INT $ac_cv_sizeof_long_long_int +_ACEOF + + + +if test "x$ac_cv_sizeof_intmax_t" = "x$ac_cv_sizeof_long_long_int"; then + intmax_fstr="lld" +else + intmax_fstr="jd" +fi + +ac_fn_c_check_decl "$LINENO" "PRIdMAX" "ac_cv_have_decl_PRIdMAX" " +#include <inttypes.h> + +" +if test "x$ac_cv_have_decl_PRIdMAX" = xyes; then : + +else + +cat >>confdefs.h <<_ACEOF +#define PRIdMAX "$intmax_fstr" +_ACEOF + +fi + + +for ac_func in bsearch faccessat getpwnam getrlimit isalpha killpg \ + mempcpy \ + sigsetmask stpcpy strchrnul strsignal strtod strtoimax \ + strtoumax sysconf +do : + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` +ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" +if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF + +fi +done + + + +# Check whether --enable-test-workaround was given. +if test "${enable_test_workaround+set}" = set; then : + enableval=$enable_test_workaround; +else + enable_test_workaround=auto +fi + + +if test "enable_test_workaround" = "auto" && + test "$ac_cv_func_faccessat" = yes; then + case `uname -s 2>/dev/null` in + GNU/kFreeBSD | \ + FreeBSD) + enable_test_workaround=yes + esac +fi +if test "$enable_test_workaround" = "yes"; then + +$as_echo "#define HAVE_TRADITIONAL_FACCESSAT 1" >>confdefs.h + +fi + +if test "$enable_fnmatch" = yes; then + use_fnmatch= + for ac_func in fnmatch +do : + ac_fn_c_check_func "$LINENO" "fnmatch" "ac_cv_func_fnmatch" +if test "x$ac_cv_func_fnmatch" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_FNMATCH 1 +_ACEOF + use_fnmatch=yes +fi +done + +fi + +if test "$use_fnmatch" = yes && test "$enable_glob" = yes; then + for ac_func in glob +do : + ac_fn_c_check_func "$LINENO" "glob" "ac_cv_func_glob" +if test "x$ac_cv_func_glob" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_GLOB 1 +_ACEOF + +fi +done + +fi + +ac_fn_c_check_func "$LINENO" "signal" "ac_cv_func_signal" +if test "x$ac_cv_func_signal" = xyes; then : + +fi + +if test "$ac_cv_func_signal" != yes; then + ac_fn_c_check_func "$LINENO" "bsd_signal" "ac_cv_func_bsd_signal" +if test "x$ac_cv_func_bsd_signal" = xyes; then : + +$as_echo "#define signal bsd_signal" >>confdefs.h + +fi + +fi + +ac_fn_c_check_func "$LINENO" "stat64" "ac_cv_func_stat64" +if test "x$ac_cv_func_stat64" = xyes; then : + +else + + +$as_echo "#define fstat64 fstat" >>confdefs.h + + +$as_echo "#define lstat64 lstat" >>confdefs.h + + +$as_echo "#define stat64 stat" >>confdefs.h + + +fi + + +ac_fn_c_check_func "$LINENO" "open64" "ac_cv_func_open64" +if test "x$ac_cv_func_open64" = xyes; then : + +else + + +$as_echo "#define open64 open" >>confdefs.h + + +$as_echo "#define readdir64 readdir" >>confdefs.h + + +$as_echo "#define dirent64 dirent" >>confdefs.h + + +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for stat::st_mtim" >&5 +$as_echo_n "checking for stat::st_mtim... " >&6; } +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <time.h> +#include <sys/time.h> +#include <sys/stat.h> +int +main () +{ +struct stat foo; return sizeof(foo.st_mtim.tv_sec) + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + have_st_mtim=yes +else + have_st_mtim=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_st_mtim" >&5 +$as_echo "$have_st_mtim" >&6; } +if test "$have_st_mtim" = "yes"; then + +$as_echo "#define HAVE_ST_MTIM 1" >>confdefs.h + +fi + + +# Check whether --with-libedit was given. +if test "${with_libedit+set}" = set; then : + withval=$with_libedit; +fi + +use_libedit= +if test "$with_libedit" != "no"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for history_init in -ledit" >&5 +$as_echo_n "checking for history_init in -ledit... " >&6; } +if ${ac_cv_lib_edit_history_init+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ledit $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char history_init (); +int +main () +{ +return history_init (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_edit_history_init=yes +else + ac_cv_lib_edit_history_init=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_edit_history_init" >&5 +$as_echo "$ac_cv_lib_edit_history_init" >&6; } +if test "x$ac_cv_lib_edit_history_init" = xyes; then : + + ac_fn_c_check_header_mongrel "$LINENO" "histedit.h" "ac_cv_header_histedit_h" "$ac_includes_default" +if test "x$ac_cv_header_histedit_h" = xyes; then : + use_libedit="yes" +else + as_fn_error $? "Can't find required header files." "$LINENO" 5 +fi + + +else + + as_fn_error $? "Can't find libedit." "$LINENO" 5 +fi + +fi +if test "$use_libedit" != "yes"; then + +$as_echo "#define SMALL 1" >>confdefs.h + +else + export LIBS="$LIBS -ledit" + for ac_func in _el_fn_sh_complete +do : + ac_fn_c_check_func "$LINENO" "_el_fn_sh_complete" "ac_cv_func__el_fn_sh_complete" +if test "x$ac_cv_func__el_fn_sh_complete" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE__EL_FN_SH_COMPLETE 1 +_ACEOF + +fi +done + +fi +# Check whether --enable-lineno was given. +if test "${enable_lineno+set}" = set; then : + enableval=$enable_lineno; +fi + +if test "$enable_lineno" != "no"; then + +$as_echo "#define WITH_LINENO 1" >>confdefs.h + +fi +ac_config_files="$ac_config_files Makefile src/Makefile" + +cat >confcache <<\_ACEOF +# This file is a shell script that caches the results of configure +# tests run on this system so they can be shared between configure +# scripts and configure runs, see configure's option --config-cache. +# It is not useful on other systems. If it contains results you don't +# want to keep, you may remove or edit it. +# +# config.status only pays attention to the cache file if you give it +# the --recheck option to rerun configure. +# +# `ac_cv_env_foo' variables (set or unset) will be overridden when +# loading this file, other *unset* `ac_cv_foo' will be assigned the +# following values. + +_ACEOF + +# The following way of writing the cache mishandles newlines in values, +# but we know of no workaround that is simple, portable, and efficient. +# So, we kill variables containing newlines. +# Ultrix sh set writes to stderr and can't be redirected directly, +# and sets the high bit in the cache file unless we assign to the vars. +( + for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do + eval ac_val=\$$ac_var + case $ac_val in #( + *${as_nl}*) + case $ac_var in #( + *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5 +$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;; + esac + case $ac_var in #( + _ | IFS | as_nl) ;; #( + BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #( + *) { eval $ac_var=; unset $ac_var;} ;; + esac ;; + esac + done + + (set) 2>&1 | + case $as_nl`(ac_space=' '; set) 2>&1` in #( + *${as_nl}ac_space=\ *) + # `set' does not quote correctly, so add quotes: double-quote + # substitution turns \\\\ into \\, and sed turns \\ into \. + sed -n \ + "s/'/'\\\\''/g; + s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p" + ;; #( + *) + # `set' quotes correctly as required by POSIX, so do not add quotes. + sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p" + ;; + esac | + sort +) | + sed ' + /^ac_cv_env_/b end + t clear + :clear + s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/ + t end + s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/ + :end' >>confcache +if diff "$cache_file" confcache >/dev/null 2>&1; then :; else + if test -w "$cache_file"; then + if test "x$cache_file" != "x/dev/null"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5 +$as_echo "$as_me: updating cache $cache_file" >&6;} + if test ! -f "$cache_file" || test -h "$cache_file"; then + cat confcache >"$cache_file" + else + case $cache_file in #( + */* | ?:*) + mv -f confcache "$cache_file"$$ && + mv -f "$cache_file"$$ "$cache_file" ;; #( + *) + mv -f confcache "$cache_file" ;; + esac + fi + fi + else + { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5 +$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;} + fi +fi +rm -f confcache + +test "x$prefix" = xNONE && prefix=$ac_default_prefix +# Let make expand exec_prefix. +test "x$exec_prefix" = xNONE && exec_prefix='${prefix}' + +DEFS=-DHAVE_CONFIG_H + +ac_libobjs= +ac_ltlibobjs= +U= +for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue + # 1. 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Make it in the build tree +# simply because there is no reason against having it here, and in addition, +# creating and moving files from /tmp can sometimes cause problems. +# Hook for its removal unless debugging. +# Note that there is a small window in which the directory will not be cleaned: +# after its creation but before its name has been assigned to `$tmp'. +$debug || +{ + tmp= ac_tmp= + trap 'exit_status=$? + : "${ac_tmp:=$tmp}" + { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status +' 0 + trap 'as_fn_exit 1' 1 2 13 15 +} +# Create a (secure) tmp directory for tmp files. + +{ + tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` && + test -d "$tmp" +} || +{ + tmp=./conf$$-$RANDOM + (umask 077 && mkdir "$tmp") +} || as_fn_error $? "cannot create a temporary directory in ." 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"could not setup config files machinery" "$LINENO" 5 +_ACEOF + +# VPATH may cause trouble with some makes, so we remove sole $(srcdir), +# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and +# trailing colons and then remove the whole line if VPATH becomes empty +# (actually we leave an empty line to preserve line numbers). +if test "x$srcdir" = x.; then + ac_vpsub='/^[ ]*VPATH[ ]*=[ ]*/{ +h +s/// +s/^/:/ +s/[ ]*$/:/ +s/:\$(srcdir):/:/g +s/:\${srcdir}:/:/g +s/:@srcdir@:/:/g +s/^:*// +s/:*$// +x +s/\(=[ ]*\).*/\1/ +G +s/\n// +s/^[^=]*=[ ]*$// +}' +fi + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +fi # test -n "$CONFIG_FILES" + +# Set up the scripts for CONFIG_HEADERS section. +# No need to generate them if there are no CONFIG_HEADERS. +# This happens for instance with `./config.status Makefile'. +if test -n "$CONFIG_HEADERS"; then +cat >"$ac_tmp/defines.awk" <<\_ACAWK || +BEGIN { +_ACEOF + +# Transform confdefs.h into an awk script `defines.awk', embedded as +# here-document in config.status, that substitutes the proper values into +# config.h.in to produce config.h. + +# Create a delimiter string that does not exist in confdefs.h, to ease +# handling of long lines. +ac_delim='%!_!# ' +for ac_last_try in false false :; do + ac_tt=`sed -n "/$ac_delim/p" confdefs.h` + if test -z "$ac_tt"; then + break + elif $ac_last_try; then + as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5 + else + ac_delim="$ac_delim!$ac_delim _$ac_delim!! " + fi +done + +# For the awk script, D is an array of macro values keyed by name, +# likewise P contains macro parameters if any. 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This is necessary, for example, + # in the case of _POSIX_SOURCE, which is predefined and required + # on some systems where configure will not decide to define it. + if (defundef == "undef") { + print "/*", prefix defundef, macro, "*/" + next + } + } +} +{ print } +_ACAWK +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 + as_fn_error $? "could not setup config headers machinery" "$LINENO" 5 +fi # test -n "$CONFIG_HEADERS" + + +eval set X " :F $CONFIG_FILES :H $CONFIG_HEADERS :C $CONFIG_COMMANDS" +shift +for ac_tag +do + case $ac_tag in + :[FHLC]) ac_mode=$ac_tag; continue;; + esac + case $ac_mode$ac_tag in + :[FHL]*:*);; + :L* | :C*:*) as_fn_error $? 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"could not create -" "$LINENO" 5 + fi +# Compute "$ac_file"'s index in $config_headers. +_am_arg="$ac_file" +_am_stamp_count=1 +for _am_header in $config_headers :; do + case $_am_header in + $_am_arg | $_am_arg:* ) + break ;; + * ) + _am_stamp_count=`expr $_am_stamp_count + 1` ;; + esac +done +echo "timestamp for $_am_arg" >`$as_dirname -- "$_am_arg" || +$as_expr X"$_am_arg" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$_am_arg" : 'X\(//\)[^/]' \| \ + X"$_am_arg" : 'X\(//\)$' \| \ + X"$_am_arg" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$_am_arg" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'`/stamp-h$_am_stamp_count + ;; + + :C) { $as_echo "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5 +$as_echo "$as_me: executing $ac_file commands" >&6;} + ;; + esac + + + case $ac_file$ac_mode in + "depfiles":C) test x"$AMDEP_TRUE" != x"" || { + # Older Autoconf quotes --file arguments for eval, but not when files + # are listed without --file. Let's play safe and only enable the eval + # if we detect the quoting. + # TODO: see whether this extra hack can be removed once we start + # requiring Autoconf 2.70 or later. + case $CONFIG_FILES in #( + *\'*) : + eval set x "$CONFIG_FILES" ;; #( + *) : + set x $CONFIG_FILES ;; #( + *) : + ;; +esac + shift + # Used to flag and report bootstrapping failures. + am_rc=0 + for am_mf + do + # Strip MF so we end up with the name of the file. + am_mf=`$as_echo "$am_mf" | sed -e 's/:.*$//'` + # Check whether this is an Automake generated Makefile which includes + # dependency-tracking related rules and includes. + # Grep'ing the whole file directly is not great: AIX grep has a line + # limit of 2048, but all sed's we know have understand at least 4000. + sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \ + || continue + am_dirpart=`$as_dirname -- "$am_mf" || +$as_expr X"$am_mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$am_mf" : 'X\(//\)[^/]' \| \ + X"$am_mf" : 'X\(//\)$' \| \ + X"$am_mf" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$am_mf" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + am_filepart=`$as_basename -- "$am_mf" || +$as_expr X/"$am_mf" : '.*/\([^/][^/]*\)/*$' \| \ + X"$am_mf" : 'X\(//\)$' \| \ + X"$am_mf" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X/"$am_mf" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + { echo "$as_me:$LINENO: cd "$am_dirpart" \ + && sed -e '/# am--include-marker/d' "$am_filepart" \ + | $MAKE -f - am--depfiles" >&5 + (cd "$am_dirpart" \ + && sed -e '/# am--include-marker/d' "$am_filepart" \ + | $MAKE -f - am--depfiles) >&5 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } || am_rc=$? + done + if test $am_rc -ne 0; then + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "Something went wrong bootstrapping makefile fragments + for automatic dependency tracking. If GNU make was not used, consider + re-running the configure script with MAKE=\"gmake\" (or whatever is + necessary). You can also try re-running configure with the + '--disable-dependency-tracking' option to at least be able to build + the package (albeit without support for automatic dependency tracking). +See \`config.log' for more details" "$LINENO" 5; } + fi + { am_dirpart=; unset am_dirpart;} + { am_filepart=; unset am_filepart;} + { am_mf=; unset am_mf;} + { am_rc=; unset am_rc;} + rm -f conftest-deps.mk +} + ;; + + esac +done # for ac_tag + + +as_fn_exit 0 +_ACEOF +ac_clean_files=$ac_clean_files_save + +test $ac_write_fail = 0 || + as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5 + + +# configure is writing to config.log, and then calls config.status. +# config.status does its own redirection, appending to config.log. +# Unfortunately, on DOS this fails, as config.log is still kept open +# by configure, so config.status won't be able to write to it; its +# output is simply discarded. So we exec the FD to /dev/null, +# effectively closing config.log, so it can be properly (re)opened and +# appended to by config.status. When coming back to configure, we +# need to make the FD available again. +if test "$no_create" != yes; then + ac_cs_success=: + ac_config_status_args= + test "$silent" = yes && + ac_config_status_args="$ac_config_status_args --quiet" + exec 5>/dev/null + $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false + exec 5>>config.log + # Use ||, not &&, to avoid exiting from the if with $? = 1, which + # would make configure fail if this is the last instruction. + $ac_cs_success || as_fn_exit 1 +fi +if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5 +$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;} +fi + diff --git a/bin/dash/configure.ac b/bin/dash/configure.ac new file mode 100644 index 00000000..1edc45b8 --- /dev/null +++ b/bin/dash/configure.ac @@ -0,0 +1,194 @@ +AC_INIT([dash],[0.5.11.2]) +AM_INIT_AUTOMAKE([foreign subdir-objects]) +AC_CONFIG_SRCDIR([src/main.c]) + +AC_CONFIG_HEADERS(config.h) + +m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES(yes)]) + +dnl Checks for programs. +AC_PROG_CC +AC_USE_SYSTEM_EXTENSIONS + +AC_MSG_CHECKING([for build system compiler]) +if test "$cross_compiling" = yes; then + CC_FOR_BUILD=${CC_FOR_BUILD-cc} +else + CC_FOR_BUILD=${CC} +fi +AC_MSG_RESULT(${CC_FOR_BUILD}) +AC_SUBST(CC_FOR_BUILD) + +AC_MSG_CHECKING([for __attribute__((__alias__()))]) +dash_cv_have_attribute_alias=no +AC_LINK_IFELSE([AC_LANG_PROGRAM([void t() {} + void a() __attribute__((__alias__("t")));], + [a();])], + [dash_cv_have_attribute_alias=yes]) +AC_MSG_RESULT($dash_cv_have_attribute_alias) +if test "x$dash_cv_have_attribute_alias" = xyes; then + AC_DEFINE([HAVE_ALIAS_ATTRIBUTE], 1, + [Define if __attribute__((__alias__())) is supported]) +fi + +AC_ARG_ENABLE(static, AS_HELP_STRING(--enable-static, \ + [Build statical linked program])) +if test "$enable_static" = "yes"; then + export LDFLAGS="-static -Wl,--fatal-warnings" +fi + +AC_ARG_ENABLE(fnmatch, AS_HELP_STRING(--enable-fnmatch, \ + [Use fnmatch(3) from libc])) +AC_ARG_ENABLE(glob, AS_HELP_STRING(--enable-glob, [Use glob(3) from libc])) + +dnl Checks for libraries. + +dnl Checks for header files. +AC_CHECK_HEADERS(alloca.h paths.h) + +dnl Check for declarations +AC_CHECK_DECL([_PATH_BSHELL],,AC_DEFINE_UNQUOTED([_PATH_BSHELL], "/bin/sh", [Define to system shell path]),[ +#ifdef HAVE_PATHS_H +#include <paths.h> +#endif +]) +AC_CHECK_DECL([_PATH_DEVNULL],,AC_DEFINE_UNQUOTED([_PATH_DEVNULL], "/dev/null", [Define to devnull device node path]),[ +#ifdef HAVE_PATHS_H +#include <paths.h> +#endif +]) +AC_CHECK_DECL([_PATH_TTY],,AC_DEFINE_UNQUOTED([_PATH_TTY], "/dev/tty", [Define to tty device node path]),[ +#ifdef HAVE_PATHS_H +#include <paths.h> +#endif +]) + +dnl Some systems lack isblank +AC_CHECK_DECLS([isblank],,,[#include <ctype.h>]) + +dnl Check for sizes of types +AC_CHECK_SIZEOF([intmax_t]) +AC_CHECK_SIZEOF([long long int]) + +dnl Select a fallback format string for intmax_t in case we don't find PRIdMAX +if test "x$ac_cv_sizeof_intmax_t" = "x$ac_cv_sizeof_long_long_int"; then + intmax_fstr="lld" +else + intmax_fstr="jd" +fi + +dnl Check for PRIdMAX and define it to a fallback if not found +AC_CHECK_DECL([PRIdMAX],, + [AC_DEFINE_UNQUOTED([PRIdMAX], "$intmax_fstr", + [Define to printf format string for intmax_t])], + [ +#include <inttypes.h> +]) + +dnl Checks for library functions. +AC_CHECK_FUNCS(bsearch faccessat getpwnam getrlimit isalpha killpg \ + mempcpy \ + sigsetmask stpcpy strchrnul strsignal strtod strtoimax \ + strtoumax sysconf) + +dnl Check whether it's worth working around FreeBSD PR kern/125009. +dnl The traditional behavior of access/faccessat is crazy, but +dnl POSIX.1-2008 explicitly allows those functions to misbehave. +dnl +dnl Unaffected kernels: +dnl +dnl - all versions of Linux +dnl - NetBSD sys/kern/vfs_subr.c 1.64, 1997-04-23 +dnl - FreeBSD 9 (r212002), 2010-09-10 +dnl - OpenBSD sys/kern/vfs_subr.c 1.166, 2008-06-09 +dnl +dnl Also worked around in Debian's libc0.1 2.13-19 when using +dnl kFreeBSD 8. + +AC_ARG_ENABLE(test-workaround, AS_HELP_STRING(--enable-test-workaround, \ + [Guard against faccessat(2) that tells root all files are executable]),, + [enable_test_workaround=auto]) + +if test "enable_test_workaround" = "auto" && + test "$ac_cv_func_faccessat" = yes; then + case `uname -s 2>/dev/null` in + GNU/kFreeBSD | \ + FreeBSD) + enable_test_workaround=yes + esac +fi +if test "$enable_test_workaround" = "yes"; then + AC_DEFINE([HAVE_TRADITIONAL_FACCESSAT], [1], + [Define if your faccessat tells root all files are executable]) +fi + +if test "$enable_fnmatch" = yes; then + use_fnmatch= + AC_CHECK_FUNCS(fnmatch, use_fnmatch=yes) +fi + +if test "$use_fnmatch" = yes && test "$enable_glob" = yes; then + AC_CHECK_FUNCS(glob) +fi + +dnl Check for klibc signal. +AC_CHECK_FUNC(signal) +if test "$ac_cv_func_signal" != yes; then + AC_CHECK_FUNC(bsd_signal, + [AC_DEFINE(signal, bsd_signal, + [klibc has bsd_signal instead of signal])]) +fi + +dnl Check for stat64 (dietlibc/klibc). +AC_CHECK_FUNC(stat64,, [ + AC_DEFINE(fstat64, fstat, [64-bit operations are the same as 32-bit]) + AC_DEFINE(lstat64, lstat, [64-bit operations are the same as 32-bit]) + AC_DEFINE(stat64, stat, [64-bit operations are the same as 32-bit]) +]) + +dnl OS X apparently has stat64 but not open64. +AC_CHECK_FUNC(open64,, [ + AC_DEFINE(open64, open, [64-bit operations are the same as 32-bit]) + AC_DEFINE(readdir64, readdir, + [64-bit operations are the same as 32-bit]) + AC_DEFINE(dirent64, dirent, + [64-bit operations are the same as 32-bit]) +]) + +dnl Check if struct stat has st_mtim. +AC_MSG_CHECKING(for stat::st_mtim) +AC_COMPILE_IFELSE( +[AC_LANG_PROGRAM([#include <time.h> +#include <sys/time.h> +#include <sys/stat.h>], +[struct stat foo; return sizeof(foo.st_mtim.tv_sec)])], +have_st_mtim=yes, have_st_mtim=no) +AC_MSG_RESULT($have_st_mtim) +if test "$have_st_mtim" = "yes"; then + AC_DEFINE([HAVE_ST_MTIM], [1], + [Define if your `struct stat' has `st_mtim']) +fi + +AC_ARG_WITH(libedit, + AS_HELP_STRING(--without-libedit, [Compile without libedit support])) +use_libedit= +if test "$with_libedit" != "no"; then + AC_CHECK_LIB(edit, history_init, [ + AC_CHECK_HEADER([histedit.h], [use_libedit="yes"], + AC_MSG_ERROR( + [Can't find required header files.]))], [ + AC_MSG_ERROR([Can't find libedit.])]) +fi +if test "$use_libedit" != "yes"; then + AC_DEFINE([SMALL], 1, [Define if you build with -DSMALL]) +else + export LIBS="$LIBS -ledit" + AC_CHECK_FUNCS(_el_fn_sh_complete) +fi +AC_ARG_ENABLE(lineno, AS_HELP_STRING(--disable-lineno, \ + [Disable LINENO support])) +if test "$enable_lineno" != "no"; then + AC_DEFINE([WITH_LINENO], 1, [Define if you build with -DWITH_LINENO]) +fi +AC_CONFIG_FILES([Makefile src/Makefile]) +AC_OUTPUT diff --git a/bin/dash/depcomp b/bin/dash/depcomp new file mode 100755 index 00000000..6b391623 --- /dev/null +++ b/bin/dash/depcomp @@ -0,0 +1,791 @@ +#! /bin/sh +# depcomp - compile a program generating dependencies as side-effects + +scriptversion=2018-03-07.03; # UTC + +# Copyright (C) 1999-2020 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <https://www.gnu.org/licenses/>. + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>. + +case $1 in + '') + echo "$0: No command. Try '$0 --help' for more information." 1>&2 + exit 1; + ;; + -h | --h*) + cat <<\EOF +Usage: depcomp [--help] [--version] PROGRAM [ARGS] + +Run PROGRAMS ARGS to compile a file, generating dependencies +as side-effects. + +Environment variables: + depmode Dependency tracking mode. + source Source file read by 'PROGRAMS ARGS'. + object Object file output by 'PROGRAMS ARGS'. + DEPDIR directory where to store dependencies. + depfile Dependency file to output. + tmpdepfile Temporary file to use when outputting dependencies. + libtool Whether libtool is used (yes/no). + +Report bugs to <bug-automake@gnu.org>. +EOF + exit $? + ;; + -v | --v*) + echo "depcomp $scriptversion" + exit $? + ;; +esac + +# Get the directory component of the given path, and save it in the +# global variables '$dir'. Note that this directory component will +# be either empty or ending with a '/' character. This is deliberate. +set_dir_from () +{ + case $1 in + */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;; + *) dir=;; + esac +} + +# Get the suffix-stripped basename of the given path, and save it the +# global variable '$base'. +set_base_from () +{ + base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'` +} + +# If no dependency file was actually created by the compiler invocation, +# we still have to create a dummy depfile, to avoid errors with the +# Makefile "include basename.Plo" scheme. +make_dummy_depfile () +{ + echo "#dummy" > "$depfile" +} + +# Factor out some common post-processing of the generated depfile. +# Requires the auxiliary global variable '$tmpdepfile' to be set. +aix_post_process_depfile () +{ + # If the compiler actually managed to produce a dependency file, + # post-process it. + if test -f "$tmpdepfile"; then + # Each line is of the form 'foo.o: dependency.h'. + # Do two passes, one to just change these to + # $object: dependency.h + # and one to simply output + # dependency.h: + # which is needed to avoid the deleted-header problem. + { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile" + sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile" + } > "$depfile" + rm -f "$tmpdepfile" + else + make_dummy_depfile + fi +} + +# A tabulation character. +tab=' ' +# A newline character. +nl=' +' +# Character ranges might be problematic outside the C locale. +# These definitions help. +upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ +lower=abcdefghijklmnopqrstuvwxyz +digits=0123456789 +alpha=${upper}${lower} + +if test -z "$depmode" || test -z "$source" || test -z "$object"; then + echo "depcomp: Variables source, object and depmode must be set" 1>&2 + exit 1 +fi + +# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. +depfile=${depfile-`echo "$object" | + sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} +tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} + +rm -f "$tmpdepfile" + +# Avoid interferences from the environment. +gccflag= dashmflag= + +# Some modes work just like other modes, but use different flags. We +# parameterize here, but still list the modes in the big case below, +# to make depend.m4 easier to write. Note that we *cannot* use a case +# here, because this file can only contain one case statement. +if test "$depmode" = hp; then + # HP compiler uses -M and no extra arg. + gccflag=-M + depmode=gcc +fi + +if test "$depmode" = dashXmstdout; then + # This is just like dashmstdout with a different argument. + dashmflag=-xM + depmode=dashmstdout +fi + +cygpath_u="cygpath -u -f -" +if test "$depmode" = msvcmsys; then + # This is just like msvisualcpp but w/o cygpath translation. + # Just convert the backslash-escaped backslashes to single forward + # slashes to satisfy depend.m4 + cygpath_u='sed s,\\\\,/,g' + depmode=msvisualcpp +fi + +if test "$depmode" = msvc7msys; then + # This is just like msvc7 but w/o cygpath translation. + # Just convert the backslash-escaped backslashes to single forward + # slashes to satisfy depend.m4 + cygpath_u='sed s,\\\\,/,g' + depmode=msvc7 +fi + +if test "$depmode" = xlc; then + # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information. + gccflag=-qmakedep=gcc,-MF + depmode=gcc +fi + +case "$depmode" in +gcc3) +## gcc 3 implements dependency tracking that does exactly what +## we want. Yay! Note: for some reason libtool 1.4 doesn't like +## it if -MD -MP comes after the -MF stuff. Hmm. +## Unfortunately, FreeBSD c89 acceptance of flags depends upon +## the command line argument order; so add the flags where they +## appear in depend2.am. Note that the slowdown incurred here +## affects only configure: in makefiles, %FASTDEP% shortcuts this. + for arg + do + case $arg in + -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;; + *) set fnord "$@" "$arg" ;; + esac + shift # fnord + shift # $arg + done + "$@" + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + mv "$tmpdepfile" "$depfile" + ;; + +gcc) +## Note that this doesn't just cater to obsosete pre-3.x GCC compilers. +## but also to in-use compilers like IMB xlc/xlC and the HP C compiler. +## (see the conditional assignment to $gccflag above). +## There are various ways to get dependency output from gcc. Here's +## why we pick this rather obscure method: +## - Don't want to use -MD because we'd like the dependencies to end +## up in a subdir. Having to rename by hand is ugly. +## (We might end up doing this anyway to support other compilers.) +## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like +## -MM, not -M (despite what the docs say). Also, it might not be +## supported by the other compilers which use the 'gcc' depmode. +## - Using -M directly means running the compiler twice (even worse +## than renaming). + if test -z "$gccflag"; then + gccflag=-MD, + fi + "$@" -Wp,"$gccflag$tmpdepfile" + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + echo "$object : \\" > "$depfile" + # The second -e expression handles DOS-style file names with drive + # letters. + sed -e 's/^[^:]*: / /' \ + -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" +## This next piece of magic avoids the "deleted header file" problem. +## The problem is that when a header file which appears in a .P file +## is deleted, the dependency causes make to die (because there is +## typically no way to rebuild the header). We avoid this by adding +## dummy dependencies for each header file. Too bad gcc doesn't do +## this for us directly. +## Some versions of gcc put a space before the ':'. On the theory +## that the space means something, we add a space to the output as +## well. hp depmode also adds that space, but also prefixes the VPATH +## to the object. Take care to not repeat it in the output. +## Some versions of the HPUX 10.20 sed can't process this invocation +## correctly. Breaking it into two sed invocations is a workaround. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +hp) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +sgi) + if test "$libtool" = yes; then + "$@" "-Wp,-MDupdate,$tmpdepfile" + else + "$@" -MDupdate "$tmpdepfile" + fi + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + + if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files + echo "$object : \\" > "$depfile" + # Clip off the initial element (the dependent). Don't try to be + # clever and replace this with sed code, as IRIX sed won't handle + # lines with more than a fixed number of characters (4096 in + # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; + # the IRIX cc adds comments like '#:fec' to the end of the + # dependency line. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \ + | tr "$nl" ' ' >> "$depfile" + echo >> "$depfile" + # The second pass generates a dummy entry for each header file. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ + >> "$depfile" + else + make_dummy_depfile + fi + rm -f "$tmpdepfile" + ;; + +xlc) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +aix) + # The C for AIX Compiler uses -M and outputs the dependencies + # in a .u file. In older versions, this file always lives in the + # current directory. Also, the AIX compiler puts '$object:' at the + # start of each line; $object doesn't have directory information. + # Version 6 uses the directory in both cases. + set_dir_from "$object" + set_base_from "$object" + if test "$libtool" = yes; then + tmpdepfile1=$dir$base.u + tmpdepfile2=$base.u + tmpdepfile3=$dir.libs/$base.u + "$@" -Wc,-M + else + tmpdepfile1=$dir$base.u + tmpdepfile2=$dir$base.u + tmpdepfile3=$dir$base.u + "$@" -M + fi + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + do + test -f "$tmpdepfile" && break + done + aix_post_process_depfile + ;; + +tcc) + # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26 + # FIXME: That version still under development at the moment of writing. + # Make that this statement remains true also for stable, released + # versions. + # It will wrap lines (doesn't matter whether long or short) with a + # trailing '\', as in: + # + # foo.o : \ + # foo.c \ + # foo.h \ + # + # It will put a trailing '\' even on the last line, and will use leading + # spaces rather than leading tabs (at least since its commit 0394caf7 + # "Emit spaces for -MD"). + "$@" -MD -MF "$tmpdepfile" + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'. + # We have to change lines of the first kind to '$object: \'. + sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile" + # And for each line of the second kind, we have to emit a 'dep.h:' + # dummy dependency, to avoid the deleted-header problem. + sed -n -e 's|^ *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile" + rm -f "$tmpdepfile" + ;; + +## The order of this option in the case statement is important, since the +## shell code in configure will try each of these formats in the order +## listed in this file. A plain '-MD' option would be understood by many +## compilers, so we must ensure this comes after the gcc and icc options. +pgcc) + # Portland's C compiler understands '-MD'. + # Will always output deps to 'file.d' where file is the root name of the + # source file under compilation, even if file resides in a subdirectory. + # The object file name does not affect the name of the '.d' file. + # pgcc 10.2 will output + # foo.o: sub/foo.c sub/foo.h + # and will wrap long lines using '\' : + # foo.o: sub/foo.c ... \ + # sub/foo.h ... \ + # ... + set_dir_from "$object" + # Use the source, not the object, to determine the base name, since + # that's sadly what pgcc will do too. + set_base_from "$source" + tmpdepfile=$base.d + + # For projects that build the same source file twice into different object + # files, the pgcc approach of using the *source* file root name can cause + # problems in parallel builds. Use a locking strategy to avoid stomping on + # the same $tmpdepfile. + lockdir=$base.d-lock + trap " + echo '$0: caught signal, cleaning up...' >&2 + rmdir '$lockdir' + exit 1 + " 1 2 13 15 + numtries=100 + i=$numtries + while test $i -gt 0; do + # mkdir is a portable test-and-set. + if mkdir "$lockdir" 2>/dev/null; then + # This process acquired the lock. + "$@" -MD + stat=$? + # Release the lock. + rmdir "$lockdir" + break + else + # If the lock is being held by a different process, wait + # until the winning process is done or we timeout. + while test -d "$lockdir" && test $i -gt 0; do + sleep 1 + i=`expr $i - 1` + done + fi + i=`expr $i - 1` + done + trap - 1 2 13 15 + if test $i -le 0; then + echo "$0: failed to acquire lock after $numtries attempts" >&2 + echo "$0: check lockdir '$lockdir'" >&2 + exit 1 + fi + + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + # Each line is of the form `foo.o: dependent.h', + # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. + # Do two passes, one to just change these to + # `$object: dependent.h' and one to simply `dependent.h:'. + sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" + # Some versions of the HPUX 10.20 sed can't process this invocation + # correctly. Breaking it into two sed invocations is a workaround. + sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +hp2) + # The "hp" stanza above does not work with aCC (C++) and HP's ia64 + # compilers, which have integrated preprocessors. The correct option + # to use with these is +Maked; it writes dependencies to a file named + # 'foo.d', which lands next to the object file, wherever that + # happens to be. + # Much of this is similar to the tru64 case; see comments there. + set_dir_from "$object" + set_base_from "$object" + if test "$libtool" = yes; then + tmpdepfile1=$dir$base.d + tmpdepfile2=$dir.libs/$base.d + "$@" -Wc,+Maked + else + tmpdepfile1=$dir$base.d + tmpdepfile2=$dir$base.d + "$@" +Maked + fi + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile1" "$tmpdepfile2" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" + do + test -f "$tmpdepfile" && break + done + if test -f "$tmpdepfile"; then + sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile" + # Add 'dependent.h:' lines. + sed -ne '2,${ + s/^ *// + s/ \\*$// + s/$/:/ + p + }' "$tmpdepfile" >> "$depfile" + else + make_dummy_depfile + fi + rm -f "$tmpdepfile" "$tmpdepfile2" + ;; + +tru64) + # The Tru64 compiler uses -MD to generate dependencies as a side + # effect. 'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'. + # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put + # dependencies in 'foo.d' instead, so we check for that too. + # Subdirectories are respected. + set_dir_from "$object" + set_base_from "$object" + + if test "$libtool" = yes; then + # Libtool generates 2 separate objects for the 2 libraries. These + # two compilations output dependencies in $dir.libs/$base.o.d and + # in $dir$base.o.d. We have to check for both files, because + # one of the two compilations can be disabled. We should prefer + # $dir$base.o.d over $dir.libs/$base.o.d because the latter is + # automatically cleaned when .libs/ is deleted, while ignoring + # the former would cause a distcleancheck panic. + tmpdepfile1=$dir$base.o.d # libtool 1.5 + tmpdepfile2=$dir.libs/$base.o.d # Likewise. + tmpdepfile3=$dir.libs/$base.d # Compaq CCC V6.2-504 + "$@" -Wc,-MD + else + tmpdepfile1=$dir$base.d + tmpdepfile2=$dir$base.d + tmpdepfile3=$dir$base.d + "$@" -MD + fi + + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + do + test -f "$tmpdepfile" && break + done + # Same post-processing that is required for AIX mode. + aix_post_process_depfile + ;; + +msvc7) + if test "$libtool" = yes; then + showIncludes=-Wc,-showIncludes + else + showIncludes=-showIncludes + fi + "$@" $showIncludes > "$tmpdepfile" + stat=$? + grep -v '^Note: including file: ' "$tmpdepfile" + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + echo "$object : \\" > "$depfile" + # The first sed program below extracts the file names and escapes + # backslashes for cygpath. The second sed program outputs the file + # name when reading, but also accumulates all include files in the + # hold buffer in order to output them again at the end. This only + # works with sed implementations that can handle large buffers. + sed < "$tmpdepfile" -n ' +/^Note: including file: *\(.*\)/ { + s//\1/ + s/\\/\\\\/g + p +}' | $cygpath_u | sort -u | sed -n ' +s/ /\\ /g +s/\(.*\)/'"$tab"'\1 \\/p +s/.\(.*\) \\/\1:/ +H +$ { + s/.*/'"$tab"'/ + G + p +}' >> "$depfile" + echo >> "$depfile" # make sure the fragment doesn't end with a backslash + rm -f "$tmpdepfile" + ;; + +msvc7msys) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +#nosideeffect) + # This comment above is used by automake to tell side-effect + # dependency tracking mechanisms from slower ones. + +dashmstdout) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout, regardless of -o. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + # Remove '-o $object'. + IFS=" " + for arg + do + case $arg in + -o) + shift + ;; + $object) + shift + ;; + *) + set fnord "$@" "$arg" + shift # fnord + shift # $arg + ;; + esac + done + + test -z "$dashmflag" && dashmflag=-M + # Require at least two characters before searching for ':' + # in the target name. This is to cope with DOS-style filenames: + # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise. + "$@" $dashmflag | + sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile" + rm -f "$depfile" + cat < "$tmpdepfile" > "$depfile" + # Some versions of the HPUX 10.20 sed can't process this sed invocation + # correctly. Breaking it into two sed invocations is a workaround. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +dashXmstdout) + # This case only exists to satisfy depend.m4. It is never actually + # run, as this mode is specially recognized in the preamble. + exit 1 + ;; + +makedepend) + "$@" || exit $? + # Remove any Libtool call + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + # X makedepend + shift + cleared=no eat=no + for arg + do + case $cleared in + no) + set ""; shift + cleared=yes ;; + esac + if test $eat = yes; then + eat=no + continue + fi + case "$arg" in + -D*|-I*) + set fnord "$@" "$arg"; shift ;; + # Strip any option that makedepend may not understand. Remove + # the object too, otherwise makedepend will parse it as a source file. + -arch) + eat=yes ;; + -*|$object) + ;; + *) + set fnord "$@" "$arg"; shift ;; + esac + done + obj_suffix=`echo "$object" | sed 's/^.*\././'` + touch "$tmpdepfile" + ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@" + rm -f "$depfile" + # makedepend may prepend the VPATH from the source file name to the object. + # No need to regex-escape $object, excess matching of '.' is harmless. + sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile" + # Some versions of the HPUX 10.20 sed can't process the last invocation + # correctly. Breaking it into two sed invocations is a workaround. + sed '1,2d' "$tmpdepfile" \ + | tr ' ' "$nl" \ + | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" "$tmpdepfile".bak + ;; + +cpp) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + # Remove '-o $object'. + IFS=" " + for arg + do + case $arg in + -o) + shift + ;; + $object) + shift + ;; + *) + set fnord "$@" "$arg" + shift # fnord + shift # $arg + ;; + esac + done + + "$@" -E \ + | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ + -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ + | sed '$ s: \\$::' > "$tmpdepfile" + rm -f "$depfile" + echo "$object : \\" > "$depfile" + cat < "$tmpdepfile" >> "$depfile" + sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +msvisualcpp) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + IFS=" " + for arg + do + case "$arg" in + -o) + shift + ;; + $object) + shift + ;; + "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") + set fnord "$@" + shift + shift + ;; + *) + set fnord "$@" "$arg" + shift + shift + ;; + esac + done + "$@" -E 2>/dev/null | + sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile" + rm -f "$depfile" + echo "$object : \\" > "$depfile" + sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile" + echo "$tab" >> "$depfile" + sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +msvcmsys) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +none) + exec "$@" + ;; + +*) + echo "Unknown depmode $depmode" 1>&2 + exit 1 + ;; +esac + +exit 0 + +# Local Variables: +# mode: shell-script +# sh-indentation: 2 +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC0" +# time-stamp-end: "; # UTC" +# End: diff --git a/bin/dash/install-sh b/bin/dash/install-sh new file mode 100755 index 00000000..ec298b53 --- /dev/null +++ b/bin/dash/install-sh @@ -0,0 +1,541 @@ +#!/bin/sh +# install - install a program, script, or datafile + +scriptversion=2020-11-14.01; # UTC + +# This originates from X11R5 (mit/util/scripts/install.sh), which was +# later released in X11R6 (xc/config/util/install.sh) with the +# following copyright and license. +# +# Copyright (C) 1994 X Consortium +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to +# deal in the Software without restriction, including without limitation the +# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +# sell copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC- +# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +# +# Except as contained in this notice, the name of the X Consortium shall not +# be used in advertising or otherwise to promote the sale, use or other deal- +# ings in this Software without prior written authorization from the X Consor- +# tium. +# +# +# FSF changes to this file are in the public domain. +# +# Calling this script install-sh is preferred over install.sh, to prevent +# 'make' implicit rules from creating a file called install from it +# when there is no Makefile. +# +# This script is compatible with the BSD install script, but was written +# from scratch. + +tab=' ' +nl=' +' +IFS=" $tab$nl" + +# Set DOITPROG to "echo" to test this script. + +doit=${DOITPROG-} +doit_exec=${doit:-exec} + +# Put in absolute file names if you don't have them in your path; +# or use environment vars. + +chgrpprog=${CHGRPPROG-chgrp} +chmodprog=${CHMODPROG-chmod} +chownprog=${CHOWNPROG-chown} +cmpprog=${CMPPROG-cmp} +cpprog=${CPPROG-cp} +mkdirprog=${MKDIRPROG-mkdir} +mvprog=${MVPROG-mv} +rmprog=${RMPROG-rm} +stripprog=${STRIPPROG-strip} + +posix_mkdir= + +# Desired mode of installed file. +mode=0755 + +# Create dirs (including intermediate dirs) using mode 755. +# This is like GNU 'install' as of coreutils 8.32 (2020). +mkdir_umask=22 + +backupsuffix= +chgrpcmd= +chmodcmd=$chmodprog +chowncmd= +mvcmd=$mvprog +rmcmd="$rmprog -f" +stripcmd= + +src= +dst= +dir_arg= +dst_arg= + +copy_on_change=false +is_target_a_directory=possibly + +usage="\ +Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE + or: $0 [OPTION]... SRCFILES... DIRECTORY + or: $0 [OPTION]... -t DIRECTORY SRCFILES... + or: $0 [OPTION]... -d DIRECTORIES... + +In the 1st form, copy SRCFILE to DSTFILE. +In the 2nd and 3rd, copy all SRCFILES to DIRECTORY. +In the 4th, create DIRECTORIES. + +Options: + --help display this help and exit. + --version display version info and exit. + + -c (ignored) + -C install only if different (preserve data modification time) + -d create directories instead of installing files. + -g GROUP $chgrpprog installed files to GROUP. + -m MODE $chmodprog installed files to MODE. + -o USER $chownprog installed files to USER. + -p pass -p to $cpprog. + -s $stripprog installed files. + -S SUFFIX attempt to back up existing files, with suffix SUFFIX. + -t DIRECTORY install into DIRECTORY. + -T report an error if DSTFILE is a directory. + +Environment variables override the default commands: + CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG + RMPROG STRIPPROG + +By default, rm is invoked with -f; when overridden with RMPROG, +it's up to you to specify -f if you want it. + +If -S is not specified, no backups are attempted. + +Email bug reports to bug-automake@gnu.org. +Automake home page: https://www.gnu.org/software/automake/ +" + +while test $# -ne 0; do + case $1 in + -c) ;; + + -C) copy_on_change=true;; + + -d) dir_arg=true;; + + -g) chgrpcmd="$chgrpprog $2" + shift;; + + --help) echo "$usage"; exit $?;; + + -m) mode=$2 + case $mode in + *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*) + echo "$0: invalid mode: $mode" >&2 + exit 1;; + esac + shift;; + + -o) chowncmd="$chownprog $2" + shift;; + + -p) cpprog="$cpprog -p";; + + -s) stripcmd=$stripprog;; + + -S) backupsuffix="$2" + shift;; + + -t) + is_target_a_directory=always + dst_arg=$2 + # Protect names problematic for 'test' and other utilities. + case $dst_arg in + -* | [=\(\)!]) dst_arg=./$dst_arg;; + esac + shift;; + + -T) is_target_a_directory=never;; + + --version) echo "$0 $scriptversion"; exit $?;; + + --) shift + break;; + + -*) echo "$0: invalid option: $1" >&2 + exit 1;; + + *) break;; + esac + shift +done + +# We allow the use of options -d and -T together, by making -d +# take the precedence; this is for compatibility with GNU install. + +if test -n "$dir_arg"; then + if test -n "$dst_arg"; then + echo "$0: target directory not allowed when installing a directory." >&2 + exit 1 + fi +fi + +if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then + # When -d is used, all remaining arguments are directories to create. + # When -t is used, the destination is already specified. + # Otherwise, the last argument is the destination. Remove it from $@. + for arg + do + if test -n "$dst_arg"; then + # $@ is not empty: it contains at least $arg. + set fnord "$@" "$dst_arg" + shift # fnord + fi + shift # arg + dst_arg=$arg + # Protect names problematic for 'test' and other utilities. + case $dst_arg in + -* | [=\(\)!]) dst_arg=./$dst_arg;; + esac + done +fi + +if test $# -eq 0; then + if test -z "$dir_arg"; then + echo "$0: no input file specified." >&2 + exit 1 + fi + # It's OK to call 'install-sh -d' without argument. + # This can happen when creating conditional directories. + exit 0 +fi + +if test -z "$dir_arg"; then + if test $# -gt 1 || test "$is_target_a_directory" = always; then + if test ! -d "$dst_arg"; then + echo "$0: $dst_arg: Is not a directory." >&2 + exit 1 + fi + fi +fi + +if test -z "$dir_arg"; then + do_exit='(exit $ret); exit $ret' + trap "ret=129; $do_exit" 1 + trap "ret=130; $do_exit" 2 + trap "ret=141; $do_exit" 13 + trap "ret=143; $do_exit" 15 + + # Set umask so as not to create temps with too-generous modes. + # However, 'strip' requires both read and write access to temps. + case $mode in + # Optimize common cases. + *644) cp_umask=133;; + *755) cp_umask=22;; + + *[0-7]) + if test -z "$stripcmd"; then + u_plus_rw= + else + u_plus_rw='% 200' + fi + cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;; + *) + if test -z "$stripcmd"; then + u_plus_rw= + else + u_plus_rw=,u+rw + fi + cp_umask=$mode$u_plus_rw;; + esac +fi + +for src +do + # Protect names problematic for 'test' and other utilities. + case $src in + -* | [=\(\)!]) src=./$src;; + esac + + if test -n "$dir_arg"; then + dst=$src + dstdir=$dst + test -d "$dstdir" + dstdir_status=$? + # Don't chown directories that already exist. + if test $dstdir_status = 0; then + chowncmd="" + fi + else + + # Waiting for this to be detected by the "$cpprog $src $dsttmp" command + # might cause directories to be created, which would be especially bad + # if $src (and thus $dsttmp) contains '*'. + if test ! -f "$src" && test ! -d "$src"; then + echo "$0: $src does not exist." >&2 + exit 1 + fi + + if test -z "$dst_arg"; then + echo "$0: no destination specified." >&2 + exit 1 + fi + dst=$dst_arg + + # If destination is a directory, append the input filename. + if test -d "$dst"; then + if test "$is_target_a_directory" = never; then + echo "$0: $dst_arg: Is a directory" >&2 + exit 1 + fi + dstdir=$dst + dstbase=`basename "$src"` + case $dst in + */) dst=$dst$dstbase;; + *) dst=$dst/$dstbase;; + esac + dstdir_status=0 + else + dstdir=`dirname "$dst"` + test -d "$dstdir" + dstdir_status=$? + fi + fi + + case $dstdir in + */) dstdirslash=$dstdir;; + *) dstdirslash=$dstdir/;; + esac + + obsolete_mkdir_used=false + + if test $dstdir_status != 0; then + case $posix_mkdir in + '') + # With -d, create the new directory with the user-specified mode. + # Otherwise, rely on $mkdir_umask. + if test -n "$dir_arg"; then + mkdir_mode=-m$mode + else + mkdir_mode= + fi + + posix_mkdir=false + # The $RANDOM variable is not portable (e.g., dash). Use it + # here however when possible just to lower collision chance. + tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$ + + trap ' + ret=$? + rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null + exit $ret + ' 0 + + # Because "mkdir -p" follows existing symlinks and we likely work + # directly in world-writeable /tmp, make sure that the '$tmpdir' + # directory is successfully created first before we actually test + # 'mkdir -p'. + if (umask $mkdir_umask && + $mkdirprog $mkdir_mode "$tmpdir" && + exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1 + then + if test -z "$dir_arg" || { + # Check for POSIX incompatibilities with -m. + # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or + # other-writable bit of parent directory when it shouldn't. + # FreeBSD 6.1 mkdir -m -p sets mode of existing directory. + test_tmpdir="$tmpdir/a" + ls_ld_tmpdir=`ls -ld "$test_tmpdir"` + case $ls_ld_tmpdir in + d????-?r-*) different_mode=700;; + d????-?--*) different_mode=755;; + *) false;; + esac && + $mkdirprog -m$different_mode -p -- "$test_tmpdir" && { + ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"` + test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1" + } + } + then posix_mkdir=: + fi + rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" + else + # Remove any dirs left behind by ancient mkdir implementations. + rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null + fi + trap '' 0;; + esac + + if + $posix_mkdir && ( + umask $mkdir_umask && + $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir" + ) + then : + else + + # mkdir does not conform to POSIX, + # or it failed possibly due to a race condition. 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If we want to + # ignore errors from any of these, just make sure not to ignore + # errors from the above "$doit $cpprog $src $dsttmp" command. + # + { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } && + { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } && + { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } && + { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } && + + # If -C, don't bother to copy if it wouldn't change the file. + if $copy_on_change && + old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` && + new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` && + set -f && + set X $old && old=:$2:$4:$5:$6 && + set X $new && new=:$2:$4:$5:$6 && + set +f && + test "$old" = "$new" && + $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1 + then + rm -f "$dsttmp" + else + # If $backupsuffix is set, and the file being installed + # already exists, attempt a backup. 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In this case, the final cleanup might fail but the new + # file should still install successfully. + { + test ! -f "$dst" || + $doit $rmcmd "$dst" 2>/dev/null || + { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && + { $doit $rmcmd "$rmtmp" 2>/dev/null; :; } + } || + { echo "$0: cannot unlink or rename $dst" >&2 + (exit 1); exit 1 + } + } && + + # Now rename the file to the real destination. + $doit $mvcmd "$dsttmp" "$dst" + } + fi || exit 1 + + trap '' 0 + fi +done + +# Local variables: +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC0" +# time-stamp-end: "; # UTC" +# End: diff --git a/bin/dash/missing b/bin/dash/missing new file mode 100755 index 00000000..8d0eaad2 --- /dev/null +++ b/bin/dash/missing @@ -0,0 +1,215 @@ +#! /bin/sh +# Common wrapper for a few potentially missing GNU programs. + +scriptversion=2018-03-07.03; # UTC + +# Copyright (C) 1996-2020 Free Software Foundation, Inc. +# Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <https://www.gnu.org/licenses/>. + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +if test $# -eq 0; then + echo 1>&2 "Try '$0 --help' for more information" + exit 1 +fi + +case $1 in + + --is-lightweight) + # Used by our autoconf macros to check whether the available missing + # script is modern enough. + exit 0 + ;; + + --run) + # Back-compat with the calling convention used by older automake. + shift + ;; + + -h|--h|--he|--hel|--help) + echo "\ +$0 [OPTION]... PROGRAM [ARGUMENT]... + +Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due +to PROGRAM being missing or too old. + +Options: + -h, --help display this help and exit + -v, --version output version information and exit + +Supported PROGRAM values: + aclocal autoconf autoheader autom4te automake makeinfo + bison yacc flex lex help2man + +Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and +'g' are ignored when checking the name. + +Send bug reports to <bug-automake@gnu.org>." + exit $? + ;; + + -v|--v|--ve|--ver|--vers|--versi|--versio|--version) + echo "missing $scriptversion (GNU Automake)" + exit $? + ;; + + -*) + echo 1>&2 "$0: unknown '$1' option" + echo 1>&2 "Try '$0 --help' for more information" + exit 1 + ;; + +esac + +# Run the given program, remember its exit status. +"$@"; st=$? + +# If it succeeded, we are done. +test $st -eq 0 && exit 0 + +# Also exit now if we it failed (or wasn't found), and '--version' was +# passed; such an option is passed most likely to detect whether the +# program is present and works. +case $2 in --version|--help) exit $st;; esac + +# Exit code 63 means version mismatch. This often happens when the user +# tries to use an ancient version of a tool on a file that requires a +# minimum version. +if test $st -eq 63; then + msg="probably too old" +elif test $st -eq 127; then + # Program was missing. + msg="missing on your system" +else + # Program was found and executed, but failed. Give up. + exit $st +fi + +perl_URL=https://www.perl.org/ +flex_URL=https://github.com/westes/flex +gnu_software_URL=https://www.gnu.org/software + +program_details () +{ + case $1 in + aclocal|automake) + echo "The '$1' program is part of the GNU Automake package:" + echo "<$gnu_software_URL/automake>" + echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:" + echo "<$gnu_software_URL/autoconf>" + echo "<$gnu_software_URL/m4/>" + echo "<$perl_URL>" + ;; + autoconf|autom4te|autoheader) + echo "The '$1' program is part of the GNU Autoconf package:" + echo "<$gnu_software_URL/autoconf/>" + echo "It also requires GNU m4 and Perl in order to run:" + echo "<$gnu_software_URL/m4/>" + echo "<$perl_URL>" + ;; + esac +} + +give_advice () +{ + # Normalize program name to check for. + normalized_program=`echo "$1" | sed ' + s/^gnu-//; t + s/^gnu//; t + s/^g//; t'` + + printf '%s\n' "'$1' is $msg." + + configure_deps="'configure.ac' or m4 files included by 'configure.ac'" + case $normalized_program in + autoconf*) + echo "You should only need it if you modified 'configure.ac'," + echo "or m4 files included by it." + program_details 'autoconf' + ;; + autoheader*) + echo "You should only need it if you modified 'acconfig.h' or" + echo "$configure_deps." + program_details 'autoheader' + ;; + automake*) + echo "You should only need it if you modified 'Makefile.am' or" + echo "$configure_deps." + program_details 'automake' + ;; + aclocal*) + echo "You should only need it if you modified 'acinclude.m4' or" + echo "$configure_deps." + program_details 'aclocal' + ;; + autom4te*) + echo "You might have modified some maintainer files that require" + echo "the 'autom4te' program to be rebuilt." + program_details 'autom4te' + ;; + bison*|yacc*) + echo "You should only need it if you modified a '.y' file." + echo "You may want to install the GNU Bison package:" + echo "<$gnu_software_URL/bison/>" + ;; + lex*|flex*) + echo "You should only need it if you modified a '.l' file." + echo "You may want to install the Fast Lexical Analyzer package:" + echo "<$flex_URL>" + ;; + help2man*) + echo "You should only need it if you modified a dependency" \ + "of a man page." + echo "You may want to install the GNU Help2man package:" + echo "<$gnu_software_URL/help2man/>" + ;; + makeinfo*) + echo "You should only need it if you modified a '.texi' file, or" + echo "any other file indirectly affecting the aspect of the manual." + echo "You might want to install the Texinfo package:" + echo "<$gnu_software_URL/texinfo/>" + echo "The spurious makeinfo call might also be the consequence of" + echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might" + echo "want to install GNU make:" + echo "<$gnu_software_URL/make/>" + ;; + *) + echo "You might have modified some files without having the proper" + echo "tools for further handling them. Check the 'README' file, it" + echo "often tells you about the needed prerequisites for installing" + echo "this package. You may also peek at any GNU archive site, in" + echo "case some other package contains this missing '$1' program." + ;; + esac +} + +give_advice "$1" | sed -e '1s/^/WARNING: /' \ + -e '2,$s/^/ /' >&2 + +# Propagate the correct exit status (expected to be 127 for a program +# not found, 63 for a program that failed due to version mismatch). +exit $st + +# Local variables: +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC0" +# time-stamp-end: "; # UTC" +# End: diff --git a/bin/dash/src/.gitignore b/bin/dash/src/.gitignore new file mode 100644 index 00000000..644eccb8 --- /dev/null +++ b/bin/dash/src/.gitignore @@ -0,0 +1,13 @@ +*.o +builtins.[ch] +builtins.def +dash +init.c +mkinit +mknodes +mksignames +mksyntax +nodes.[ch] +signames.c +syntax.[ch] +token.h diff --git a/bin/dash/src/Makefile.am b/bin/dash/src/Makefile.am new file mode 100644 index 00000000..fb8229f1 --- /dev/null +++ b/bin/dash/src/Makefile.am @@ -0,0 +1,70 @@ +AM_YFLAGS = -d + +COMMON_CFLAGS = -Wall +COMMON_CPPFLAGS = \ + -DBSD=1 -DSHELL + +AM_CFLAGS = $(COMMON_CFLAGS) +AM_CPPFLAGS = -include $(top_builddir)/config.h $(COMMON_CPPFLAGS) +AM_CFLAGS_FOR_BUILD = -g -O2 $(COMMON_CFLAGS) +AM_CPPFLAGS_FOR_BUILD = $(COMMON_CPPFLAGS) + +COMPILE_FOR_BUILD = \ + $(CC_FOR_BUILD) $(DEFAULT_INCLUDES) $(AM_CPPFLAGS_FOR_BUILD) \ + $(CPPFLAGS_FOR_BUILD) \ + $(AM_CFLAGS_FOR_BUILD) $(CFLAGS_FOR_BUILD) + +bin_PROGRAMS = dash + +dash_CFILES = \ + alias.c arith_yacc.c arith_yylex.c cd.c error.c eval.c exec.c expand.c \ + histedit.c input.c jobs.c mail.c main.c memalloc.c miscbltin.c \ + mystring.c options.c parser.c redir.c show.c trap.c output.c \ + bltin/printf.c system.c bltin/test.c bltin/times.c var.c +dash_SOURCES = \ + $(dash_CFILES) \ + alias.h arith_yacc.h bltin/bltin.h cd.h error.h eval.h exec.h \ + expand.h \ + init.h input.h jobs.h machdep.h mail.h main.h memalloc.h miscbltin.h \ + myhistedit.h mystring.h options.h output.h parser.h redir.h shell.h \ + show.h system.h trap.h var.h +dash_LDADD = builtins.o init.o nodes.o signames.o syntax.o + +HELPERS = mkinit mksyntax mknodes mksignames + +BUILT_SOURCES = builtins.h nodes.h syntax.h token.h token_vars.h +CLEANFILES = \ + $(BUILT_SOURCES) $(dash_LDADD:%.o=%.c) \ + $(HELPERS) builtins.def + +man_MANS = dash.1 +EXTRA_DIST = \ + $(man_MANS) \ + mktokens mkbuiltins builtins.def.in mkinit.c \ + mknodes.c nodetypes nodes.c.pat mksyntax.c mksignames.c + +token.h token_vars.h: mktokens + $(AM_V_GEN)$(SHELL) mktokens + +builtins.def: builtins.def.in $(top_builddir)/config.h + $(AM_V_CC)$(COMPILE) -E -x c -o $@ builtins.def.in + +builtins.c builtins.h: mkbuiltins builtins.def + $(AM_V_GEN)$(SHELL) mkbuiltins builtins.def + +init.c: mkinit $(dash_CFILES) + $(AM_V_GEN)./mkinit $(dash_CFILES) + +nodes.c nodes.h: mknodes nodetypes nodes.c.pat + $(AM_V_GEN)./mknodes nodetypes nodes.c.pat + +syntax.c syntax.h: mksyntax + $(AM_V_GEN)./mksyntax + +signames.c: mksignames + $(AM_V_GEN)./mksignames + +mksyntax: token.h + +$(HELPERS): + $(AM_V_CC)$(COMPILE_FOR_BUILD) -o $@ $@.c diff --git a/bin/dash/src/Makefile.in b/bin/dash/src/Makefile.in new file mode 100644 index 00000000..ae25f565 --- /dev/null +++ b/bin/dash/src/Makefile.in @@ -0,0 +1,834 @@ +# Makefile.in generated by automake 1.16.3 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; 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builtins.def.in $(top_builddir)/config.h + $(AM_V_CC)$(COMPILE) -E -x c -o $@ builtins.def.in + +builtins.c builtins.h: mkbuiltins builtins.def + $(AM_V_GEN)$(SHELL) mkbuiltins builtins.def + +init.c: mkinit $(dash_CFILES) + $(AM_V_GEN)./mkinit $(dash_CFILES) + +nodes.c nodes.h: mknodes nodetypes nodes.c.pat + $(AM_V_GEN)./mknodes nodetypes nodes.c.pat + +syntax.c syntax.h: mksyntax + $(AM_V_GEN)./mksyntax + +signames.c: mksignames + $(AM_V_GEN)./mksignames + +mksyntax: token.h + +$(HELPERS): + $(AM_V_CC)$(COMPILE_FOR_BUILD) -o $@ $@.c + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/bin/dash/src/TOUR b/bin/dash/src/TOUR new file mode 100644 index 00000000..e30836e1 --- /dev/null +++ b/bin/dash/src/TOUR @@ -0,0 +1,343 @@ +# @(#)TOUR 8.1 (Berkeley) 5/31/93 + +NOTE -- This is the original TOUR paper distributed with ash and +does not represent the current state of the shell. It is provided anyway +since it provides helpful information for how the shell is structured, +but be warned that things have changed -- the current shell is +still under development. + +================================================================ + + A Tour through Ash + + Copyright 1989 by Kenneth Almquist. + + +DIRECTORIES: The subdirectory bltin contains commands which can +be compiled stand-alone. The rest of the source is in the main +ash directory. + +SOURCE CODE GENERATORS: Files whose names begin with "mk" are +programs that generate source code. A complete list of these +programs is: + + program intput files generates + ------- ------------ --------- + mkbuiltins builtins builtins.h builtins.c + mkinit *.c init.c + mknodes nodetypes nodes.h nodes.c + mksignames - signames.h signames.c + mksyntax - syntax.h syntax.c + mktokens - token.h + bltin/mkexpr unary_op binary_op operators.h operators.c + +There are undoubtedly too many of these. Mkinit searches all the +C source files for entries looking like: + + INIT { + x = 1; /* executed during initialization */ + } + + RESET { + x = 2; /* executed when the shell does a longjmp + back to the main command loop */ + } + +It pulls this code out into routines which are when particular +events occur. The intent is to improve modularity by isolating +the information about which modules need to be explicitly +initialized/reset within the modules themselves. + +Mkinit recognizes several constructs for placing declarations in +the init.c file. + INCLUDE "file.h" +includes a file. The storage class MKINIT makes a declaration +available in the init.c file, for example: + MKINIT int funcnest; /* depth of function calls */ +MKINIT alone on a line introduces a structure or union declara- +tion: + MKINIT + struct redirtab { + short renamed[10]; + }; +Preprocessor #define statements are copied to init.c without any +special action to request this. + +INDENTATION: The ash source is indented in multiples of six +spaces. The only study that I have heard of on the subject con- +cluded that the optimal amount to indent is in the range of four +to six spaces. I use six spaces since it is not too big a jump +from the widely used eight spaces. If you really hate six space +indentation, use the adjind (source included) program to change +it to something else. + +EXCEPTIONS: Code for dealing with exceptions appears in +exceptions.c. The C language doesn't include exception handling, +so I implement it using setjmp and longjmp. The global variable +exception contains the type of exception. EXERROR is raised by +calling error. EXINT is an interrupt. + +INTERRUPTS: In an interactive shell, an interrupt will cause an +EXINT exception to return to the main command loop. (Exception: +EXINT is not raised if the user traps interrupts using the trap +command.) The INTOFF and INTON macros (defined in exception.h) +provide uninterruptable critical sections. Between the execution +of INTOFF and the execution of INTON, interrupt signals will be +held for later delivery. INTOFF and INTON can be nested. + +MEMALLOC.C: Memalloc.c defines versions of malloc and realloc +which call error when there is no memory left. It also defines a +stack oriented memory allocation scheme. Allocating off a stack +is probably more efficient than allocation using malloc, but the +big advantage is that when an exception occurs all we have to do +to free up the memory in use at the time of the exception is to +restore the stack pointer. The stack is implemented using a +linked list of blocks. + +STPUTC: If the stack were contiguous, it would be easy to store +strings on the stack without knowing in advance how long the +string was going to be: + p = stackptr; + *p++ = c; /* repeated as many times as needed */ + stackptr = p; +The following three macros (defined in memalloc.h) perform these +operations, but grow the stack if you run off the end: + STARTSTACKSTR(p); + STPUTC(c, p); /* repeated as many times as needed */ + grabstackstr(p); + +We now start a top-down look at the code: + +MAIN.C: The main routine performs some initialization, executes +the user's profile if necessary, and calls cmdloop. Cmdloop is +repeatedly parses and executes commands. + +OPTIONS.C: This file contains the option processing code. It is +called from main to parse the shell arguments when the shell is +invoked, and it also contains the set builtin. The -i and -j op- +tions (the latter turns on job control) require changes in signal +handling. The routines setjobctl (in jobs.c) and setinteractive +(in trap.c) are called to handle changes to these options. + +PARSING: The parser code is all in parser.c. A recursive des- +cent parser is used. Syntax tables (generated by mksyntax) are +used to classify characters during lexical analysis. There are +three tables: one for normal use, one for use when inside single +quotes, and one for use when inside double quotes. The tables +are machine dependent because they are indexed by character vari- +ables and the range of a char varies from machine to machine. + +PARSE OUTPUT: The output of the parser consists of a tree of +nodes. The various types of nodes are defined in the file node- +types. + +Nodes of type NARG are used to represent both words and the con- +tents of here documents. An early version of ash kept the con- +tents of here documents in temporary files, but keeping here do- +cuments in memory typically results in significantly better per- +formance. It would have been nice to make it an option to use +temporary files for here documents, for the benefit of small +machines, but the code to keep track of when to delete the tem- +porary files was complex and I never fixed all the bugs in it. +(AT&T has been maintaining the Bourne shell for more than ten +years, and to the best of my knowledge they still haven't gotten +it to handle temporary files correctly in obscure cases.) + +The text field of a NARG structure points to the text of the +word. The text consists of ordinary characters and a number of +special codes defined in parser.h. The special codes are: + + CTLVAR Variable substitution + CTLENDVAR End of variable substitution + CTLBACKQ Command substitution + CTLESC Escape next character + +A variable substitution contains the following elements: + + CTLVAR type name '=' [ alternative-text CTLENDVAR ] + +The type field is a single character specifying the type of sub- +stitution. The possible types are: + + VSNORMAL $var + VSMINUS ${var-text} + VSMINUS|VSNUL ${var:-text} + VSPLUS ${var+text} + VSPLUS|VSNUL ${var:+text} + VSQUESTION ${var?text} + VSQUESTION|VSNUL ${var:?text} + VSASSIGN ${var=text} + VSASSIGN|VSNUL ${var=text} + +The name of the variable comes next, terminated by an equals +sign. If the type is not VSNORMAL, then the text field in the +substitution follows, terminated by a CTLENDVAR byte. + +Commands in back quotes are parsed and stored in a linked list. +The locations of these commands in the string are indicated by +the CTLBACKQ character. + +The character CTLESC escapes the next character, so that in case +any of the CTL characters mentioned above appear in the input, +they can be passed through transparently. CTLESC is also used to +escape '*', '?', '[', and '!' characters which were quoted by the +user and thus should not be used for file name generation. + +CTLESC characters have proved to be particularly tricky to get +right. In the case of here documents which are not subject to +variable and command substitution, the parser doesn't insert any +CTLESC characters to begin with (so the contents of the text +field can be written without any processing). Other here docu- +ments, and words which are not subject to splitting and file name +generation, have the CTLESC characters removed during the vari- +able and command substitution phase. Words which are subject +splitting and file name generation have the CTLESC characters re- +moved as part of the file name phase. + +EXECUTION: Command execution is handled by the following files: + eval.c The top level routines. + redir.c Code to handle redirection of input and output. + jobs.c Code to handle forking, waiting, and job control. + exec.c Code to path searches and the actual exec sys call. + expand.c Code to evaluate arguments. + var.c Maintains the variable symbol table. Called from expand.c. + +EVAL.C: Evaltree recursively executes a parse tree. The exit +status is returned in the global variable exitstatus. The alter- +native entry evalbackcmd is called to evaluate commands in back +quotes. It saves the result in memory if the command is a buil- +tin; otherwise it forks off a child to execute the command and +connects the standard output of the child to a pipe. + +JOBS.C: To create a process, you call makejob to return a job +structure, and then call forkshell (passing the job structure as +an argument) to create the process. Waitforjob waits for a job +to complete. These routines take care of process groups if job +control is defined. + +REDIR.C: Ash allows file descriptors to be redirected and then +restored without forking off a child process. This is accom- +plished by duplicating the original file descriptors. The redir- +tab structure records where the file descriptors have be dupli- +cated to. + +EXEC.C: The routine find_command locates a command, and enters +the command in the hash table if it is not already there. The +third argument specifies whether it is to print an error message +if the command is not found. (When a pipeline is set up, +find_command is called for all the commands in the pipeline be- +fore any forking is done, so to get the commands into the hash +table of the parent process. But to make command hashing as +transparent as possible, we silently ignore errors at that point +and only print error messages if the command cannot be found +later.) + +The routine shellexec is the interface to the exec system call. + +EXPAND.C: Arguments are processed in three passes. The first +(performed by the routine argstr) performs variable and command +substitution. The second (ifsbreakup) performs word splitting +and the third (expandmeta) performs file name generation. If the +"/u" directory is simulated, then when "/u/username" is replaced +by the user's home directory, the flag "didudir" is set. This +tells the cd command that it should print out the directory name, +just as it would if the "/u" directory were implemented using +symbolic links. + +VAR.C: Variables are stored in a hash table. Probably we should +switch to extensible hashing. The variable name is stored in the +same string as the value (using the format "name=value") so that +no string copying is needed to create the environment of a com- +mand. Variables which the shell references internally are preal- +located so that the shell can reference the values of these vari- +ables without doing a lookup. + +When a program is run, the code in eval.c sticks any environment +variables which precede the command (as in "PATH=xxx command") in +the variable table as the simplest way to strip duplicates, and +then calls "environment" to get the value of the environment. +There are two consequences of this. First, if an assignment to +PATH precedes the command, the value of PATH before the assign- +ment must be remembered and passed to shellexec. Second, if the +program turns out to be a shell procedure, the strings from the +environment variables which preceded the command must be pulled +out of the table and replaced with strings obtained from malloc, +since the former will automatically be freed when the stack (see +the entry on memalloc.c) is emptied. + +BUILTIN COMMANDS: The procedures for handling these are scat- +tered throughout the code, depending on which location appears +most appropriate. They can be recognized because their names al- +ways end in "cmd". The mapping from names to procedures is +specified in the file builtins, which is processed by the mkbuil- +tins command. + +A builtin command is invoked with argc and argv set up like a +normal program. A builtin command is allowed to overwrite its +arguments. Builtin routines can call nextopt to do option pars- +ing. This is kind of like getopt, but you don't pass argc and +argv to it. Builtin routines can also call error. This routine +normally terminates the shell (or returns to the main command +loop if the shell is interactive), but when called from a builtin +command it causes the builtin command to terminate with an exit +status of 2. + +The directory bltins contains commands which can be compiled in- +dependently but can also be built into the shell for efficiency +reasons. The makefile in this directory compiles these programs +in the normal fashion (so that they can be run regardless of +whether the invoker is ash), but also creates a library named +bltinlib.a which can be linked with ash. The header file bltin.h +takes care of most of the differences between the ash and the +stand-alone environment. The user should call the main routine +"main", and #define main to be the name of the routine to use +when the program is linked into ash. This #define should appear +before bltin.h is included; bltin.h will #undef main if the pro- +gram is to be compiled stand-alone. + +CD.C: This file defines the cd and pwd builtins. The pwd com- +mand runs /bin/pwd the first time it is invoked (unless the user +has already done a cd to an absolute pathname), but then +remembers the current directory and updates it when the cd com- +mand is run, so subsequent pwd commands run very fast. The main +complication in the cd command is in the docd command, which +resolves symbolic links into actual names and informs the user +where the user ended up if he crossed a symbolic link. + +SIGNALS: Trap.c implements the trap command. The routine set- +signal figures out what action should be taken when a signal is +received and invokes the signal system call to set the signal ac- +tion appropriately. When a signal that a user has set a trap for +is caught, the routine "onsig" sets a flag. The routine dotrap +is called at appropriate points to actually handle the signal. +When an interrupt is caught and no trap has been set for that +signal, the routine "onint" in error.c is called. + +OUTPUT: Ash uses it's own output routines. There are three out- +put structures allocated. "Output" represents the standard out- +put, "errout" the standard error, and "memout" contains output +which is to be stored in memory. This last is used when a buil- +tin command appears in backquotes, to allow its output to be col- +lected without doing any I/O through the UNIX operating system. +The variables out1 and out2 normally point to output and errout, +respectively, but they are set to point to memout when appropri- +ate inside backquotes. + +INPUT: The basic input routine is pgetc, which reads from the +current input file. There is a stack of input files; the current +input file is the top file on this stack. The code allows the +input to come from a string rather than a file. (This is for the +-c option and the "." and eval builtin commands.) The global +variable plinno is saved and restored when files are pushed and +popped from the stack. The parser routines store the number of +the current line in this variable. + +DEBUGGING: If DEBUG is defined in shell.h, then the shell will +write debugging information to the file $HOME/trace. Most of +this is done using the TRACE macro, which takes a set of printf +arguments inside two sets of parenthesis. Example: +"TRACE(("n=%d0, n))". The double parenthesis are necessary be- +cause the preprocessor can't handle functions with a variable +number of arguments. Defining DEBUG also causes the shell to +generate a core dump if it is sent a quit signal. The tracing +code is in show.c. diff --git a/bin/dash/src/alias.c b/bin/dash/src/alias.c new file mode 100644 index 00000000..daeacbb8 --- /dev/null +++ b/bin/dash/src/alias.c @@ -0,0 +1,227 @@ +/*- + * Copyright (c) 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <stdlib.h> +#include "shell.h" +#include "input.h" +#include "output.h" +#include "error.h" +#include "memalloc.h" +#include "mystring.h" +#include "alias.h" +#include "options.h" /* XXX for argptr (should remove?) */ + +#define ATABSIZE 39 + +struct alias *atab[ATABSIZE]; + +STATIC void setalias(const char *, const char *); +STATIC struct alias *freealias(struct alias *); +STATIC struct alias **__lookupalias(const char *); + +STATIC +void +setalias(const char *name, const char *val) +{ + struct alias *ap, **app; + + app = __lookupalias(name); + ap = *app; + INTOFF; + if (ap) { + if (!(ap->flag & ALIASINUSE)) { + ckfree(ap->val); + } + ap->val = savestr(val); + ap->flag &= ~ALIASDEAD; + } else { + /* not found */ + ap = ckmalloc(sizeof (struct alias)); + ap->name = savestr(name); + ap->val = savestr(val); + ap->flag = 0; + ap->next = 0; + *app = ap; + } + INTON; +} + +int +unalias(const char *name) +{ + struct alias **app; + + app = __lookupalias(name); + + if (*app) { + INTOFF; + *app = freealias(*app); + INTON; + return (0); + } + + return (1); +} + +void +rmaliases(void) +{ + struct alias *ap, **app; + int i; + + INTOFF; + for (i = 0; i < ATABSIZE; i++) { + app = &atab[i]; + for (ap = *app; ap; ap = *app) { + *app = freealias(*app); + if (ap == *app) { + app = &ap->next; + } + } + } + INTON; +} + +struct alias * +lookupalias(const char *name, int check) +{ + struct alias *ap = *__lookupalias(name); + + if (check && ap && (ap->flag & ALIASINUSE)) + return (NULL); + return (ap); +} + +/* + * TODO - sort output + */ +int +aliascmd(int argc, char **argv) +{ + char *n, *v; + int ret = 0; + struct alias *ap; + + if (argc == 1) { + int i; + + for (i = 0; i < ATABSIZE; i++) + for (ap = atab[i]; ap; ap = ap->next) { + printalias(ap); + } + return (0); + } + while ((n = *++argv) != NULL) { + if ((v = strchr(n+1, '=')) == NULL) { /* n+1: funny ksh stuff */ + if ((ap = *__lookupalias(n)) == NULL) { + outfmt(out2, "%s: %s not found\n", "alias", n); + ret = 1; + } else + printalias(ap); + } else { + *v++ = '\0'; + setalias(n, v); + } + } + + return (ret); +} + +int +unaliascmd(int argc, char **argv) +{ + int i; + + while ((i = nextopt("a")) != '\0') { + if (i == 'a') { + rmaliases(); + return (0); + } + } + for (i = 0; *argptr; argptr++) { + if (unalias(*argptr)) { + outfmt(out2, "%s: %s not found\n", "unalias", *argptr); + i = 1; + } + } + + return (i); +} + +STATIC struct alias * +freealias(struct alias *ap) { + struct alias *next; + + if (ap->flag & ALIASINUSE) { + ap->flag |= ALIASDEAD; + return ap; + } + + next = ap->next; + ckfree(ap->name); + ckfree(ap->val); + ckfree(ap); + return next; +} + +void +printalias(const struct alias *ap) { + out1fmt("%s=%s\n", ap->name, single_quote(ap->val)); +} + +STATIC struct alias ** +__lookupalias(const char *name) { + unsigned int hashval; + struct alias **app; + const char *p; + unsigned int ch; + + p = name; + + ch = (unsigned char)*p; + hashval = ch << 4; + while (ch) { + hashval += ch; + ch = (unsigned char)*++p; + } + app = &atab[hashval % ATABSIZE]; + + for (; *app; app = &(*app)->next) { + if (equal(name, (*app)->name)) { + break; + } + } + + return app; +} diff --git a/bin/dash/src/alias.h b/bin/dash/src/alias.h new file mode 100644 index 00000000..fb841d64 --- /dev/null +++ b/bin/dash/src/alias.h @@ -0,0 +1,52 @@ +/*- + * Copyright (c) 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)alias.h 8.2 (Berkeley) 5/4/95 + */ + +#define ALIASINUSE 1 +#define ALIASDEAD 2 + +struct alias { + struct alias *next; + char *name; + char *val; + int flag; +}; + +struct alias *lookupalias(const char *, int); +int aliascmd(int, char **); +int unaliascmd(int, char **); +void rmaliases(void); +int unalias(const char *); +void printalias(const struct alias *); diff --git a/bin/dash/src/arith_yacc.c b/bin/dash/src/arith_yacc.c new file mode 100644 index 00000000..1a087c32 --- /dev/null +++ b/bin/dash/src/arith_yacc.c @@ -0,0 +1,304 @@ +/*- + * Copyright (c) 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 2007 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <inttypes.h> +#include <stdlib.h> +#include "arith_yacc.h" +#include "expand.h" +#include "shell.h" +#include "error.h" +#include "output.h" +#include "var.h" + +#if ARITH_BOR + 11 != ARITH_BORASS || ARITH_ASS + 11 != ARITH_EQ +#error Arithmetic tokens are out of order. +#endif + +static const char *arith_startbuf; + +const char *arith_buf; +union yystype yylval; + +static int last_token; + +#define ARITH_PRECEDENCE(op, prec) [op - ARITH_BINOP_MIN] = prec + +static const char prec[ARITH_BINOP_MAX - ARITH_BINOP_MIN] = { + ARITH_PRECEDENCE(ARITH_MUL, 0), + ARITH_PRECEDENCE(ARITH_DIV, 0), + ARITH_PRECEDENCE(ARITH_REM, 0), + ARITH_PRECEDENCE(ARITH_ADD, 1), + ARITH_PRECEDENCE(ARITH_SUB, 1), + ARITH_PRECEDENCE(ARITH_LSHIFT, 2), + ARITH_PRECEDENCE(ARITH_RSHIFT, 2), + ARITH_PRECEDENCE(ARITH_LT, 3), + ARITH_PRECEDENCE(ARITH_LE, 3), + ARITH_PRECEDENCE(ARITH_GT, 3), + ARITH_PRECEDENCE(ARITH_GE, 3), + ARITH_PRECEDENCE(ARITH_EQ, 4), + ARITH_PRECEDENCE(ARITH_NE, 4), + ARITH_PRECEDENCE(ARITH_BAND, 5), + ARITH_PRECEDENCE(ARITH_BXOR, 6), + ARITH_PRECEDENCE(ARITH_BOR, 7), +}; + +#define ARITH_MAX_PREC 8 + +static void yyerror(const char *s) __attribute__ ((noreturn)); +static void yyerror(const char *s) +{ + sh_error("arithmetic expression: %s: \"%s\"", s, arith_startbuf); + /* NOTREACHED */ +} + +static inline int arith_prec(int op) +{ + return prec[op - ARITH_BINOP_MIN]; +} + +static inline int higher_prec(int op1, int op2) +{ + return arith_prec(op1) < arith_prec(op2); +} + +static intmax_t do_binop(int op, intmax_t a, intmax_t b) +{ + switch (op) { + default: + case ARITH_REM: + case ARITH_DIV: + if (!b) + yyerror("division by zero"); + return op == ARITH_REM ? a % b : a / b; + case ARITH_MUL: + return a * b; + case ARITH_ADD: + return a + b; + case ARITH_SUB: + return a - b; + case ARITH_LSHIFT: + return a << b; + case ARITH_RSHIFT: + return a >> b; + case ARITH_LT: + return a < b; + case ARITH_LE: + return a <= b; + case ARITH_GT: + return a > b; + case ARITH_GE: + return a >= b; + case ARITH_EQ: + return a == b; + case ARITH_NE: + return a != b; + case ARITH_BAND: + return a & b; + case ARITH_BXOR: + return a ^ b; + case ARITH_BOR: + return a | b; + } +} + +static intmax_t assignment(int var, int noeval); + +static intmax_t primary(int token, union yystype *val, int op, int noeval) +{ + intmax_t result; + +again: + switch (token) { + case ARITH_LPAREN: + result = assignment(op, noeval); + if (last_token != ARITH_RPAREN) + yyerror("expecting ')'"); + last_token = yylex(); + return result; + case ARITH_NUM: + last_token = op; + return val->val; + case ARITH_VAR: + last_token = op; + return noeval ? val->val : lookupvarint(val->name); + case ARITH_ADD: + token = op; + *val = yylval; + op = yylex(); + goto again; + case ARITH_SUB: + *val = yylval; + return -primary(op, val, yylex(), noeval); + case ARITH_NOT: + *val = yylval; + return !primary(op, val, yylex(), noeval); + case ARITH_BNOT: + *val = yylval; + return ~primary(op, val, yylex(), noeval); + default: + yyerror("expecting primary"); + } +} + +static intmax_t binop2(intmax_t a, int op, int prec, int noeval) +{ + for (;;) { + union yystype val; + intmax_t b; + int op2; + int token; + + token = yylex(); + val = yylval; + + b = primary(token, &val, yylex(), noeval); + + op2 = last_token; + if (op2 >= ARITH_BINOP_MIN && op2 < ARITH_BINOP_MAX && + higher_prec(op2, op)) { + b = binop2(b, op2, arith_prec(op), noeval); + op2 = last_token; + } + + a = noeval ? b : do_binop(op, a, b); + + if (op2 < ARITH_BINOP_MIN || op2 >= ARITH_BINOP_MAX || + arith_prec(op2) >= prec) + return a; + + op = op2; + } +} + +static intmax_t binop(int token, union yystype *val, int op, int noeval) +{ + intmax_t a = primary(token, val, op, noeval); + + op = last_token; + if (op < ARITH_BINOP_MIN || op >= ARITH_BINOP_MAX) + return a; + + return binop2(a, op, ARITH_MAX_PREC, noeval); +} + +static intmax_t and(int token, union yystype *val, int op, int noeval) +{ + intmax_t a = binop(token, val, op, noeval); + intmax_t b; + + op = last_token; + if (op != ARITH_AND) + return a; + + token = yylex(); + *val = yylval; + + b = and(token, val, yylex(), noeval | !a); + + return a && b; +} + +static intmax_t or(int token, union yystype *val, int op, int noeval) +{ + intmax_t a = and(token, val, op, noeval); + intmax_t b; + + op = last_token; + if (op != ARITH_OR) + return a; + + token = yylex(); + *val = yylval; + + b = or(token, val, yylex(), noeval | !!a); + + return a || b; +} + +static intmax_t cond(int token, union yystype *val, int op, int noeval) +{ + intmax_t a = or(token, val, op, noeval); + intmax_t b; + intmax_t c; + + if (last_token != ARITH_QMARK) + return a; + + b = assignment(yylex(), noeval | !a); + + if (last_token != ARITH_COLON) + yyerror("expecting ':'"); + + token = yylex(); + *val = yylval; + + c = cond(token, val, yylex(), noeval | !!a); + + return a ? b : c; +} + +static intmax_t assignment(int var, int noeval) +{ + union yystype val = yylval; + int op = yylex(); + intmax_t result; + + if (var != ARITH_VAR) + return cond(var, &val, op, noeval); + + if (op != ARITH_ASS && (op < ARITH_ASS_MIN || op >= ARITH_ASS_MAX)) + return cond(var, &val, op, noeval); + + result = assignment(yylex(), noeval); + if (noeval) + return result; + + return setvarint(val.name, + op == ARITH_ASS ? result : + do_binop(op - 11, lookupvarint(val.name), result), 0); +} + +intmax_t arith(const char *s) +{ + intmax_t result; + + arith_buf = arith_startbuf = s; + + result = assignment(yylex(), 0); + + if (last_token) + yyerror("expecting EOF"); + + return result; +} diff --git a/bin/dash/src/arith_yacc.h b/bin/dash/src/arith_yacc.h new file mode 100644 index 00000000..ff34d524 --- /dev/null +++ b/bin/dash/src/arith_yacc.h @@ -0,0 +1,89 @@ +/*- + * Copyright (c) 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 2007 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#define ARITH_ASS 1 + +#define ARITH_OR 2 +#define ARITH_AND 3 +#define ARITH_BAD 4 +#define ARITH_NUM 5 +#define ARITH_VAR 6 +#define ARITH_NOT 7 + +#define ARITH_BINOP_MIN 8 +#define ARITH_LE 8 +#define ARITH_GE 9 +#define ARITH_LT 10 +#define ARITH_GT 11 +#define ARITH_EQ 12 +#define ARITH_REM 13 +#define ARITH_BAND 14 +#define ARITH_LSHIFT 15 +#define ARITH_RSHIFT 16 +#define ARITH_MUL 17 +#define ARITH_ADD 18 +#define ARITH_BOR 19 +#define ARITH_SUB 20 +#define ARITH_BXOR 21 +#define ARITH_DIV 22 +#define ARITH_NE 23 +#define ARITH_BINOP_MAX 24 + +#define ARITH_ASS_MIN 24 +#define ARITH_REMASS 24 +#define ARITH_BANDASS 25 +#define ARITH_LSHIFTASS 26 +#define ARITH_RSHIFTASS 27 +#define ARITH_MULASS 28 +#define ARITH_ADDASS 29 +#define ARITH_BORASS 30 +#define ARITH_SUBASS 31 +#define ARITH_BXORASS 32 +#define ARITH_DIVASS 33 +#define ARITH_ASS_MAX 34 + +#define ARITH_LPAREN 34 +#define ARITH_RPAREN 35 +#define ARITH_BNOT 36 +#define ARITH_QMARK 37 +#define ARITH_COLON 38 + +union yystype { + intmax_t val; + char *name; +}; + +extern union yystype yylval; + +int yylex(void); diff --git a/bin/dash/src/arith_yylex.c b/bin/dash/src/arith_yylex.c new file mode 100644 index 00000000..ec5b5b25 --- /dev/null +++ b/bin/dash/src/arith_yylex.c @@ -0,0 +1,240 @@ +/*- + * Copyright (c) 2002 + * Herbert Xu. + * Copyright (c) 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <inttypes.h> +#include <stdlib.h> +#include <string.h> +#include "arith_yacc.h" +#include "expand.h" +#include "error.h" +#include "shell.h" +#include "memalloc.h" +#include "syntax.h" +#include "system.h" + +#if ARITH_BOR + 11 != ARITH_BORASS || ARITH_ASS + 11 != ARITH_EQ +#error Arithmetic tokens are out of order. +#endif + +extern const char *arith_buf; + +int +yylex() +{ + int value; + const char *buf = arith_buf; + const char *p; + + for (;;) { + value = *buf; + switch (value) { + case ' ': + case '\t': + case '\n': + buf++; + continue; + default: + return ARITH_BAD; + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + yylval.val = strtoimax(buf, (char **)&arith_buf, 0); + return ARITH_NUM; + case 'A': + case 'B': + case 'C': + case 'D': + case 'E': + case 'F': + case 'G': + case 'H': + case 'I': + case 'J': + case 'K': + case 'L': + case 'M': + case 'N': + case 'O': + case 'P': + case 'Q': + case 'R': + case 'S': + case 'T': + case 'U': + case 'V': + case 'W': + case 'X': + case 'Y': + case 'Z': + case '_': + case 'a': + case 'b': + case 'c': + case 'd': + case 'e': + case 'f': + case 'g': + case 'h': + case 'i': + case 'j': + case 'k': + case 'l': + case 'm': + case 'n': + case 'o': + case 'p': + case 'q': + case 'r': + case 's': + case 't': + case 'u': + case 'v': + case 'w': + case 'x': + case 'y': + case 'z': + p = buf; + while (buf++, is_in_name(*buf)) + ; + yylval.name = stalloc(buf - p + 1); + *(char *)mempcpy(yylval.name, p, buf - p) = 0; + value = ARITH_VAR; + goto out; + case '=': + value += ARITH_ASS - '='; +checkeq: + buf++; +checkeqcur: + if (*buf != '=') + goto out; + value += 11; + break; + case '>': + switch (*++buf) { + case '=': + value += ARITH_GE - '>'; + break; + case '>': + value += ARITH_RSHIFT - '>'; + goto checkeq; + default: + value += ARITH_GT - '>'; + goto out; + } + break; + case '<': + switch (*++buf) { + case '=': + value += ARITH_LE - '<'; + break; + case '<': + value += ARITH_LSHIFT - '<'; + goto checkeq; + default: + value += ARITH_LT - '<'; + goto out; + } + break; + case '|': + if (*++buf != '|') { + value += ARITH_BOR - '|'; + goto checkeqcur; + } + value += ARITH_OR - '|'; + break; + case '&': + if (*++buf != '&') { + value += ARITH_BAND - '&'; + goto checkeqcur; + } + value += ARITH_AND - '&'; + break; + case '!': + if (*++buf != '=') { + value += ARITH_NOT - '!'; + goto out; + } + value += ARITH_NE - '!'; + break; + case 0: + goto out; + case '(': + value += ARITH_LPAREN - '('; + break; + case ')': + value += ARITH_RPAREN - ')'; + break; + case '*': + value += ARITH_MUL - '*'; + goto checkeq; + case '/': + value += ARITH_DIV - '/'; + goto checkeq; + case '%': + value += ARITH_REM - '%'; + goto checkeq; + case '+': + value += ARITH_ADD - '+'; + goto checkeq; + case '-': + value += ARITH_SUB - '-'; + goto checkeq; + case '~': + value += ARITH_BNOT - '~'; + break; + case '^': + value += ARITH_BXOR - '^'; + goto checkeq; + case '?': + value += ARITH_QMARK - '?'; + break; + case ':': + value += ARITH_COLON - ':'; + break; + } + break; + } + + buf++; +out: + arith_buf = buf; + return value; +} diff --git a/bin/dash/src/bltin/bltin.h b/bin/dash/src/bltin/bltin.h new file mode 100644 index 00000000..f5ac06f2 --- /dev/null +++ b/bin/dash/src/bltin/bltin.h @@ -0,0 +1,89 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)bltin.h 8.1 (Berkeley) 5/31/93 + */ + +/* + * This file is included by programs which are optionally built into the + * shell. If SHELL is defined, we try to map the standard UNIX library + * routines to ash routines using defines. + */ + +#include "../shell.h" +#include "../mystring.h" +#include "../options.h" +#ifdef SHELL +#include "../memalloc.h" +#include "../output.h" +#include "../error.h" +#ifndef USE_GLIBC_STDIO +#undef stdout +#undef stderr +#undef putc +#undef putchar +#undef fileno +#define stdout out1 +#define stderr out2 +#define printf out1fmt +#define putc(c, file) outc(c, file) +#define putchar(c) out1c(c) +#define FILE struct output +#define fprintf outfmt +#define fputs outstr +#define fflush flushout +#define fileno(f) ((f)->fd) +#define ferror outerr +#endif +#define INITARGS(argv) +#define error sh_error +#define warn sh_warn +#define warnx sh_warnx +#define exit sh_exit +#define setprogname(s) +#define getprogname() commandname +#define setlocate(l,s) 0 + +#define getenv(p) bltinlookup((p),0) + +#else +#undef NULL +#include <stdio.h> +#undef main +#define INITARGS(argv) if ((commandname = argv[0]) == NULL) {fputs("Argc is zero\n", stderr); exit(2);} else +#endif + +int echocmd(int, char **); + + +extern const char *commandname; diff --git a/bin/dash/src/bltin/echo.1 b/bin/dash/src/bltin/echo.1 new file mode 100644 index 00000000..fbc7fb43 --- /dev/null +++ b/bin/dash/src/bltin/echo.1 @@ -0,0 +1,109 @@ +.\" Copyright (c) 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" Copyright (c) 1997-2005 +.\" Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Kenneth Almquist. +.\" Copyright 1989 by Kenneth Almquist +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)echo.1 8.1 (Berkeley) 5/31/93 +.\" +.Dd May 31, 1993 +.Dt ECHO 1 +.Os +.Sh NAME +.Nm echo +.Nd produce message in a shell script +.Sh SYNOPSIS +.Nm +.Op Fl n | Fl e +.Ar args ... +.Sh DESCRIPTION +.Nm +prints its arguments on the standard output, separated by spaces. +Unless the +.Fl n +option is present, a newline is output following the arguments. +The +.Fl e +option causes +.Nm +to treat the escape sequences specially, as described in the following +paragraph. +The +.Fl e +option is the default, and is provided solely for compatibility with +other systems. +Only one of the options +.Fl n +and +.Fl e +may be given. +.Pp +If any of the following sequences of characters is encountered during +output, the sequence is not output. Instead, the specified action is +performed: +.Bl -tag -width indent +.It Li \eb +A backspace character is output. +.It Li \ec +Subsequent output is suppressed. This is normally used at the end of the +last argument to suppress the trailing newline that +.Nm +would otherwise output. +.It Li \ef +Output a form feed. +.It Li \en +Output a newline character. +.It Li \er +Output a carriage return. +.It Li \et +Output a (horizontal) tab character. +.It Li \ev +Output a vertical tab. +.It Li \e0 Ns Ar digits +Output the character whose value is given by zero to three digits. +If there are zero digits, a nul character is output. +.It Li \e\e +Output a backslash. +.El +.Sh HINTS +Remember that backslash is special to the shell and needs to be escaped. +To output a message to standard error, say +.Pp +.D1 echo message \*[Gt]\*[Am]2 +.Sh BUGS +The octal character escape mechanism +.Pq Li \e0 Ns Ar digits +differs from the +C language mechanism. +.Pp +There is no way to force +.Nm +to treat its arguments literally, rather than interpreting them as +options and escape sequences. diff --git a/bin/dash/src/bltin/printf.1 b/bin/dash/src/bltin/printf.1 new file mode 100644 index 00000000..38731732 --- /dev/null +++ b/bin/dash/src/bltin/printf.1 @@ -0,0 +1,354 @@ +.\" Copyright (c) 1989, 1990, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" Copyright (c) 1997-2005 +.\" Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" the Institute of Electrical and Electronics Engineers, Inc. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" from: @(#)printf.1 8.1 (Berkeley) 6/6/93 +.\" +.Dd November 5, 1993 +.Dt PRINTF 1 +.Os +.Sh NAME +.Nm printf +.Nd formatted output +.Sh SYNOPSIS +.Nm +.Ar format +.Op Ar arguments ... +.Sh DESCRIPTION +.Nm +formats and prints its arguments, after the first, under control +of the +.Ar format . +The +.Ar format +is a character string which contains three types of objects: plain characters, +which are simply copied to standard output, character escape sequences which +are converted and copied to the standard output, and format specifications, +each of which causes printing of the next successive +.Ar argument . +.Pp +The +.Ar arguments +after the first are treated as strings if the corresponding format is +either +.Cm b , +.Cm B , +.Cm c +or +.Cm s ; +otherwise it is evaluated as a C constant, with the following extensions: +.Pp +.Bl -bullet -offset indent -compact +.It +A leading plus or minus sign is allowed. +.It +If the leading character is a single or double quote, the value is the +.Tn ASCII +code of the next character. +.El +.Pp +The format string is reused as often as necessary to satisfy the +.Ar arguments . +Any extra format specifications are evaluated with zero or the null +string. +.Pp +Character escape sequences are in backslash notation as defined in +.St -ansiC . +The characters and their meanings are as follows: +.Bl -tag -width Ds -offset indent +.It Cm \ee +Write an \*[Lt]escape\*[Gt] character. +.It Cm \ea +Write a \*[Lt]bell\*[Gt] character. +.It Cm \eb +Write a \*[Lt]backspace\*[Gt] character. +.It Cm \ef +Write a \*[Lt]form-feed\*[Gt] character. +.It Cm \en +Write a \*[Lt]new-line\*[Gt] character. +.It Cm \er +Write a \*[Lt]carriage return\*[Gt] character. +.It Cm \et +Write a \*[Lt]tab\*[Gt] character. +.It Cm \ev +Write a \*[Lt]vertical tab\*[Gt] character. +.It Cm \e\' +Write a \*[Lt]single quote\*[Gt] character. +.It Cm \e" +Write a \*[Lt]double quote\*[Gt] character. +.It Cm \e\e +Write a backslash character. +.It Cm \e Ns Ar num +Write an 8\-bit character whose +.Tn ASCII +value is the 1\-, 2\-, or 3\-digit octal number +.Ar num . +.It Cm \ex Ns Ar xx +Write an 8\-bit character whose +.Tn ASCII +value is the 1\- or 2\-digit hexadecimal number +.Ar xx . +.El +.Pp +Each format specification is introduced by the percent character +(``%''). +The remainder of the format specification includes, +in the following order: +.Bl -tag -width Ds +.It "Zero or more of the following flags:" +.Bl -tag -width Ds +.It Cm # +A `#' character +specifying that the value should be printed in an ``alternative form''. +For +.Cm b , +.Cm c , +.Cm d , +and +.Cm s +formats, this option has no effect. +For the +.Cm o +format the precision of the number is increased to force the first +character of the output string to a zero. +For the +.Cm x +.Pq Cm X +format, a non-zero result has the string +.Li 0x +.Pq Li 0X +prepended to it. +For +.Cm e , +.Cm E , +.Cm f , +.Cm g , +and +.Cm G +formats, the result will always contain a decimal point, even if no +digits follow the point (normally, a decimal point only appears in the +results of those formats if a digit follows the decimal point). +For +.Cm g +and +.Cm G +formats, trailing zeros are not removed from the result as they +would otherwise be. +.\" I turned this off - decided it isn't a valid use of '#' +.\" For the +.\" .Cm B +.\" format, backslash-escape sequences are expanded first; +.It Cm \&\- +A minus sign `\-' which specifies +.Em left adjustment +of the output in the indicated field; +.It Cm \&+ +A `+' character specifying that there should always be +a sign placed before the number when using signed formats. +.It Sq \&\ \& +A space specifying that a blank should be left before a positive number +for a signed format. +A `+' overrides a space if both are used; +.It Cm \&0 +A zero `0' character indicating that zero-padding should be used +rather than blank-padding. +A `\-' overrides a `0' if both are used; +.El +.It "Field Width:" +An optional digit string specifying a +.Em field width ; +if the output string has fewer characters than the field width it will +be blank-padded on the left (or right, if the left-adjustment indicator +has been given) to make up the field width (note that a leading zero +is a flag, but an embedded zero is part of a field width); +.It Precision : +An optional period, +.Sq Cm \&.\& , +followed by an optional digit string giving a +.Em precision +which specifies the number of digits to appear after the decimal point, +for +.Cm e +and +.Cm f +formats, or the maximum number of characters to be printed +from a string +.Sm off +.Pf ( Cm b No , +.Sm on +.Cm B +and +.Cm s +formats); if the digit string is missing, the precision is treated +as zero; +.It Format : +A character which indicates the type of format to use (one of +.Cm diouxXfwEgGbBcs ) . +.El +.Pp +A field width or precision may be +.Sq Cm \&* +instead of a digit string. +In this case an +.Ar argument +supplies the field width or precision. +.Pp +The format characters and their meanings are: +.Bl -tag -width Fl +.It Cm diouXx +The +.Ar argument +is printed as a signed decimal (d or i), unsigned octal, unsigned decimal, +or unsigned hexadecimal (X or x), respectively. +.It Cm f +The +.Ar argument +is printed in the style +.Sm off +.Pf [\-]ddd Cm \&. No ddd +.Sm on +where the number of d's +after the decimal point is equal to the precision specification for +the argument. +If the precision is missing, 6 digits are given; if the precision +is explicitly 0, no digits and no decimal point are printed. +.It Cm eE +The +.Ar argument +is printed in the style +.Sm off +.Pf [\-]d Cm \&. No ddd Cm e No \\*(Pmdd +.Sm on +where there +is one digit before the decimal point and the number after is equal to +the precision specification for the argument; when the precision is +missing, 6 digits are produced. +An upper-case E is used for an `E' format. +.It Cm gG +The +.Ar argument +is printed in style +.Cm f +or in style +.Cm e +.Pq Cm E +whichever gives full precision in minimum space. +.It Cm b +Characters from the string +.Ar argument +are printed with backslash-escape sequences expanded. +.br +The following additional backslash-escape sequences are supported: +.Bl -tag -width Ds +.It Cm \ec +Causes +.Nm +to ignore any remaining characters in the string operand containing it, +any remaining string operands, and any additional characters in +the format operand. +.It Cm \e0 Ns Ar num +Write an 8\-bit character whose +.Tn ASCII +value is the 1\-, 2\-, or 3\-digit +octal number +.Ar num . +.It Cm \e^ Ns Ar c +Write the control character +.Ar c . +Generates characters `\e000' through `\e037`, and `\e177' (from `\e^?'). +.It Cm \eM\- Ns Ar c +Write the character +.Ar c +with the 8th bit set. +Generates characters `\e241' through `\e376`. +.It Cm \eM^ Ns Ar c +Write the control character +.Ar c +with the 8th bit set. +Generates characters `\e000' through `\e037`, and `\e177' (from `\eM^?'). +.El +.It Cm B +Characters from the string +.Ar argument +are printed with unprintable characters backslash-escaped using the +.Sm off +.Pf ` Cm \e Ar c No ', +.Pf ` Cm \e^ Ar c No ', +.Pf ` Cm \eM\- Ar c No ' +or +.Pf ` Cm \eM^ Ar c No ', +.Sm on +formats described above. +.It Cm c +The first character of +.Ar argument +is printed. +.It Cm s +Characters from the string +.Ar argument +are printed until the end is reached or until the number of characters +indicated by the precision specification is reached; if the +precision is omitted, all characters in the string are printed. +.It Cm \&% +Print a `%'; no argument is used. +.El +.Pp +In no case does a non-existent or small field width cause truncation of +a field; padding takes place only if the specified field width exceeds +the actual width. +.Sh EXIT STATUS +.Nm +exits 0 on success, 1 on failure. +.Sh SEE ALSO +.Xr echo 1 , +.Xr printf 3 , +.Xr printf 9 +.Xr vis 3 +.Sh STANDARDS +The +.Nm +utility conforms to +.St -p1003.1-2001 . +.Pp +Support for the floating point formats and `*' as a field width and precision +are optional in POSIX. +.Pp +The behaviour of the %B format and the \e', \e", \exxx, \ee and +\e[M][\-|^]c escape sequences are undefined in POSIX. +.Sh BUGS +Since the floating point numbers are translated from +.Tn ASCII +to floating-point and +then back again, floating-point precision may be lost. +.Pp +Hexadecimal character constants are restricted to, and should be specified +as, two character constants. This is contrary to the ISO C standard but +does guarantee detection of the end of the constant. diff --git a/bin/dash/src/bltin/printf.c b/bin/dash/src/bltin/printf.c new file mode 100644 index 00000000..7785735b --- /dev/null +++ b/bin/dash/src/bltin/printf.c @@ -0,0 +1,478 @@ +/* + * Copyright (c) 1989, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/types.h> + +#include <ctype.h> +#include <errno.h> +#include <inttypes.h> +#include <limits.h> +#include <stdarg.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +static int conv_escape_str(char *, char **); +static char *conv_escape(char *, int *); +static int getchr(void); +static double getdouble(void); +static uintmax_t getuintmax(int); +static char *getstr(void); +static char *mklong(const char *, const char *); +static void check_conversion(const char *, const char *); + +static int rval; +static char **gargv; + +#define isodigit(c) ((c) >= '0' && (c) <= '7') +#define octtobin(c) ((c) - '0') + +#include "bltin.h" +#include "system.h" + +#define PF(f, func) { \ + switch ((char *)param - (char *)array) { \ + default: \ + (void)printf(f, array[0], array[1], func); \ + break; \ + case sizeof(*param): \ + (void)printf(f, array[0], func); \ + break; \ + case 0: \ + (void)printf(f, func); \ + break; \ + } \ +} + +#define ASPF(sp, f, func) ({ \ + int ret; \ + switch ((char *)param - (char *)array) { \ + default: \ + ret = xasprintf(sp, f, array[0], array[1], func); \ + break; \ + case sizeof(*param): \ + ret = xasprintf(sp, f, array[0], func); \ + break; \ + case 0: \ + ret = xasprintf(sp, f, func); \ + break; \ + } \ + ret; \ +}) + + +static int print_escape_str(const char *f, int *param, int *array, char *s) +{ + struct stackmark smark; + char *p, *q; + int done; + int len; + int total; + + setstackmark(&smark); + done = conv_escape_str(s, &q); + p = stackblock(); + len = q - p; + total = len - 1; + + q[-1] = (!!((f[1] - 's') | done) - 1) & f[2]; + total += !!q[-1]; + if (f[1] == 's') + goto easy; + + p = makestrspace(len, q); + memset(p, 'X', total); + p[total] = 0; + + q = stackblock(); + total = ASPF(&p, f, p); + + len = strchrnul(p, 'X') - p; + memcpy(p + len, q, strspn(p + len, "X")); + +easy: + out1mem(p, total); + + popstackmark(&smark); + return done; +} + + +int printfcmd(int argc, char *argv[]) +{ + char *fmt; + char *format; + int ch; + + rval = 0; + + nextopt(nullstr); + + argv = argptr; + format = *argv; + + if (!format) + error("usage: printf format [arg ...]"); + + gargv = ++argv; + +#define SKIP1 "#-+ 0" +#define SKIP2 "*0123456789" + do { + /* + * Basic algorithm is to scan the format string for conversion + * specifications -- once one is found, find out if the field + * width or precision is a '*'; if it is, gather up value. + * Note, format strings are reused as necessary to use up the + * provided arguments, arguments of zero/null string are + * provided to use up the format string. + */ + + /* find next format specification */ + for (fmt = format; (ch = *fmt++) ;) { + char *start; + char nextch; + int array[2]; + int *param; + + if (ch == '\\') { + int c_ch; + fmt = conv_escape(fmt, &c_ch); + ch = c_ch; + goto pc; + } + if (ch != '%' || (*fmt == '%' && (++fmt || 1))) { +pc: + putchar(ch); + continue; + } + + /* Ok - we've found a format specification, + Save its address for a later printf(). */ + start = fmt - 1; + param = array; + + /* skip to field width */ + fmt += strspn(fmt, SKIP1); + if (*fmt == '*') { + ++fmt; + *param++ = getuintmax(1); + } else { + /* skip to possible '.', + * get following precision + */ + fmt += strspn(fmt, SKIP2); + } + + if (*fmt == '.') { + ++fmt; + if (*fmt == '*') { + ++fmt; + *param++ = getuintmax(1); + } else + fmt += strspn(fmt, SKIP2); + } + + ch = *fmt; + if (!ch) + error("missing format character"); + /* null terminate format string to we can use it + as an argument to printf. */ + nextch = fmt[1]; + fmt[1] = 0; + switch (ch) { + + case 'b': + *fmt = 's'; + /* escape if a \c was encountered */ + if (print_escape_str(start, param, array, + getstr())) + goto out; + *fmt = 'b'; + break; + case 'c': { + int p = getchr(); + PF(start, p); + break; + } + case 's': { + char *p = getstr(); + PF(start, p); + break; + } + case 'd': + case 'i': { + uintmax_t p = getuintmax(1); + start = mklong(start, fmt); + PF(start, p); + break; + } + case 'o': + case 'u': + case 'x': + case 'X': { + uintmax_t p = getuintmax(0); + start = mklong(start, fmt); + PF(start, p); + break; + } + case 'a': + case 'A': + case 'e': + case 'E': + case 'f': + case 'F': + case 'g': + case 'G': { + double p = getdouble(); + PF(start, p); + break; + } + default: + error("%s: invalid directive", start); + } + *++fmt = nextch; + } + } while (gargv != argv && *gargv); + +out: + return rval; +} + + +/* + * Print SysV echo(1) style escape string + * Halts processing string if a \c escape is encountered. + */ +static int +conv_escape_str(char *str, char **sp) +{ + int c; + int ch; + char *cp; + + /* convert string into a temporary buffer... */ + STARTSTACKSTR(cp); + + do { + c = ch = *str++; + if (ch != '\\') + continue; + + c = *str++; + if (c == 'c') { + /* \c as in SYSV echo - abort all processing.... */ + c = ch = 0x100; + continue; + } + + /* + * %b string octal constants are not like those in C. + * They start with a \0, and are followed by 0, 1, 2, + * or 3 octal digits. + */ + if (c == '0' && isodigit(*str)) + str++; + + /* Finally test for sequences valid in the format string */ + str = conv_escape(str - 1, &c); + } while (STPUTC(c, cp), (char)ch); + + *sp = cp; + + return ch; +} + +/* + * Print "standard" escape characters + */ +static char * +conv_escape(char *str, int *conv_ch) +{ + int value; + int ch; + + ch = *str; + + switch (ch) { + default: + if (!isodigit(*str)) { + value = '\\'; + goto out; + } + + ch = 3; + value = 0; + do { + value <<= 3; + value += octtobin(*str++); + } while (isodigit(*str) && --ch); + goto out; + + case '\\': value = '\\'; break; /* backslash */ + case 'a': value = '\a'; break; /* alert */ + case 'b': value = '\b'; break; /* backspace */ + case 'f': value = '\f'; break; /* form-feed */ + case 'n': value = '\n'; break; /* newline */ + case 'r': value = '\r'; break; /* carriage-return */ + case 't': value = '\t'; break; /* tab */ + case 'v': value = '\v'; break; /* vertical-tab */ + } + + str++; +out: + *conv_ch = value; + return str; +} + +static char * +mklong(const char *str, const char *ch) +{ + /* + * Replace a string like "%92.3u" with "%92.3"PRIuMAX. + * + * Although C99 does not guarantee it, we assume PRIiMAX, + * PRIoMAX, PRIuMAX, PRIxMAX, and PRIXMAX are all the same + * as PRIdMAX with the final 'd' replaced by the corresponding + * character. + */ + + char *copy; + size_t len; + + len = ch - str + sizeof(PRIdMAX); + STARTSTACKSTR(copy); + copy = makestrspace(len, copy); + memcpy(copy, str, len - sizeof(PRIdMAX)); + memcpy(copy + len - sizeof(PRIdMAX), PRIdMAX, sizeof(PRIdMAX)); + copy[len - 2] = *ch; + return (copy); +} + +static int +getchr(void) +{ + int val = 0; + + if (*gargv) + val = **gargv++; + return val; +} + +static char * +getstr(void) +{ + char *val = nullstr; + + if (*gargv) + val = *gargv++; + return val; +} + +static uintmax_t +getuintmax(int sign) +{ + uintmax_t val = 0; + char *cp, *ep; + + cp = *gargv; + if (cp == NULL) + goto out; + gargv++; + + val = (unsigned char) cp[1]; + if (*cp == '\"' || *cp == '\'') + goto out; + + errno = 0; + val = sign ? strtoimax(cp, &ep, 0) : strtoumax(cp, &ep, 0); + check_conversion(cp, ep); +out: + return val; +} + +static double +getdouble(void) +{ + double val; + char *cp, *ep; + + cp = *gargv; + if (cp == NULL) + return 0; + gargv++; + + if (*cp == '\"' || *cp == '\'') + return (unsigned char) cp[1]; + + errno = 0; + val = strtod(cp, &ep); + check_conversion(cp, ep); + return val; +} + +static void +check_conversion(const char *s, const char *ep) +{ + if (*ep) { + if (ep == s) + warnx("%s: expected numeric value", s); + else + warnx("%s: not completely converted", s); + rval = 1; + } else if (errno == ERANGE) { + warnx("%s: %s", s, strerror(ERANGE)); + rval = 1; + } +} + +int +echocmd(int argc, char **argv) +{ + const char *lastfmt = snlfmt; + int nonl; + + if (*++argv && equal(*argv, "-n")) { + argv++; + lastfmt = "%s"; + } + + do { + const char *fmt = "%s "; + char *s = *argv; + + if (!s || !*++argv) + fmt = lastfmt; + + nonl = print_escape_str(fmt, NULL, NULL, s ?: nullstr); + } while (!nonl && *argv); + return 0; +} diff --git a/bin/dash/src/bltin/test.1 b/bin/dash/src/bltin/test.1 new file mode 100644 index 00000000..42435fb3 --- /dev/null +++ b/bin/dash/src/bltin/test.1 @@ -0,0 +1,309 @@ +.\" Copyright (c) 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" Copyright (c) 1997-2005 +.\" Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" the Institute of Electrical and Electronics Engineers, Inc. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)test.1 8.1 (Berkeley) 5/31/93 +.\" +.Dd May 31, 1993 +.Dt TEST 1 +.Os +.Sh NAME +.Nm test , +.Nm \&[ +.Nd condition evaluation utility +.Sh SYNOPSIS +.Nm test +.Ar expression +.Nm \&[ +.Ar expression Cm ] +.Sh DESCRIPTION +The +.Nm test +utility evaluates the expression and, if it evaluates +to true, returns a zero (true) exit status; otherwise +it returns 1 (false). +If there is no expression, test also +returns 1 (false). +.Pp +All operators and flags are separate arguments to the +.Nm test +utility. +.Pp +The following primaries are used to construct expression: +.Bl -tag -width Ar +.It Fl b Ar file +True if +.Ar file +exists and is a block special +file. +.It Fl c Ar file +True if +.Ar file +exists and is a character +special file. +.It Fl d Ar file +True if +.Ar file +exists and is a directory. +.It Fl e Ar file +True if +.Ar file +exists (regardless of type). +.It Fl f Ar file +True if +.Ar file +exists and is a regular file. +.It Fl g Ar file +True if +.Ar file +exists and its set group ID flag +is set. +.It Fl h Ar file +True if +.Ar file +exists and is a symbolic link. +.It Fl k Ar file +True if +.Ar file +exists and its sticky bit is set. +.It Fl n Ar string +True if the length of +.Ar string +is nonzero. +.It Fl p Ar file +True if +.Ar file +is a named pipe +.Po Tn FIFO Pc . +.It Fl r Ar file +True if +.Ar file +exists and is readable. +.It Fl s Ar file +True if +.Ar file +exists and has a size greater +than zero. +.It Fl t Ar file_descriptor +True if the file whose file descriptor number +is +.Ar file_descriptor +is open and is associated with a terminal. +.It Fl u Ar file +True if +.Ar file +exists and its set user ID flag +is set. +.It Fl w Ar file +True if +.Ar file +exists and is writable. +True +indicates only that the write flag is on. +The file is not writable on a read-only file +system even if this test indicates true. +.It Fl x Ar file +True if +.Ar file +exists and is executable. +True +indicates only that the execute flag is on. +If +.Ar file +is a directory, true indicates that +.Ar file +can be searched. +.It Fl z Ar string +True if the length of +.Ar string +is zero. +.It Fl L Ar file +True if +.Ar file +exists and is a symbolic link. +This operator is retained for compatibility with previous versions of +this program. +Do not rely on its existence; use +.Fl h +instead. +.It Fl O Ar file +True if +.Ar file +exists and its owner matches the effective user id of this process. +.It Fl G Ar file +True if +.Ar file +exists and its group matches the effective group id of this process. +.It Fl S Ar file +True if +.Ar file +exists and is a socket. +.It Ar file1 Fl nt Ar file2 +True if +.Ar file1 +exists and is newer than +.Ar file2 . +.It Ar file1 Fl ot Ar file2 +True if +.Ar file1 +exists and is older than +.Ar file2 . +.It Ar file1 Fl ef Ar file2 +True if +.Ar file1 +and +.Ar file2 +exist and refer to the same file. +.It Ar string +True if +.Ar string +is not the null +string. +.It Ar \&s\&1 Cm \&= Ar \&s\&2 +True if the strings +.Ar \&s\&1 +and +.Ar \&s\&2 +are identical. +.It Ar \&s\&1 Cm \&!= Ar \&s\&2 +True if the strings +.Ar \&s\&1 +and +.Ar \&s\&2 +are not identical. +.It Ar \&s\&1 Cm \&\*[Lt] Ar \&s\&2 +True if string +.Ar \&s\&1 +comes before +.Ar \&s\&2 +based on the ASCII value of their characters. +.It Ar \&s\&1 Cm \&\*[Gt] Ar \&s\&2 +True if string +.Ar \&s\&1 +comes after +.Ar \&s\&2 +based on the ASCII value of their characters. +.It Ar \&n\&1 Fl \&eq Ar \&n\&2 +True if the integers +.Ar \&n\&1 +and +.Ar \&n\&2 +are algebraically +equal. +.It Ar \&n\&1 Fl \&ne Ar \&n\&2 +True if the integers +.Ar \&n\&1 +and +.Ar \&n\&2 +are not +algebraically equal. +.It Ar \&n\&1 Fl \> Ar \&n\&2 +True if the integer +.Ar \&n\&1 +is algebraically +greater than the integer +.Ar \&n\&2 . +.It Ar \&n\&1 Fl \&ge Ar \&n\&2 +True if the integer +.Ar \&n\&1 +is algebraically +greater than or equal to the integer +.Ar \&n\&2 . +.It Ar \&n\&1 Fl \< Ar \&n\&2 +True if the integer +.Ar \&n\&1 +is algebraically less +than the integer +.Ar \&n\&2 . +.It Ar \&n\&1 Fl \&le Ar \&n\&2 +True if the integer +.Ar \&n\&1 +is algebraically less +than or equal to the integer +.Ar \&n\&2 . +.El +.Pp +These primaries can be combined with the following operators: +.Bl -tag -width Ar +.It Cm \&! Ar expression +True if +.Ar expression +is false. +.It Ar expression1 Fl a Ar expression2 +True if both +.Ar expression1 +and +.Ar expression2 +are true. +.It Ar expression1 Fl o Ar expression2 +True if either +.Ar expression1 +or +.Ar expression2 +are true. +.It Cm \&( Ns Ar expression Ns Cm \&) +True if expression is true. +.El +.Pp +The +.Fl a +operator has higher precedence than the +.Fl o +operator. +.Sh GRAMMAR AMBIGUITY +The +.Nm test +grammar is inherently ambiguous. +In order to assure a degree of consistency, the cases described in +.St -p1003.2 +section 4.62.4, +are evaluated consistently according to the rules specified in the +standards document. +All other cases are subject to the ambiguity in the command semantics. +.Sh EXIT STATUS +The +.Nm test +utility exits with one of the following values: +.Bl -tag -width Ds +.It 0 +expression evaluated to true. +.It 1 +expression evaluated to false or expression was +missing. +.It \*[Gt]1 +An error occurred. +.El +.Sh STANDARDS +The +.Nm test +utility implements a superset of the +.St -p1003.2 +specification. diff --git a/bin/dash/src/bltin/test.c b/bin/dash/src/bltin/test.c new file mode 100644 index 00000000..c7fc479d --- /dev/null +++ b/bin/dash/src/bltin/test.c @@ -0,0 +1,700 @@ +/* + * test(1); version 7-like -- author Erik Baalbergen + * modified by Eric Gisin to be used as built-in. + * modified by Arnold Robbins to add SVR3 compatibility + * (-x -c -b -p -u -g -k) plus Korn's -L -nt -ot -ef and new -S (socket). + * modified by J.T. Conklin for NetBSD. + * + * This program is in the Public Domain. + */ + +#include <sys/stat.h> +#include <sys/types.h> + +#include <fcntl.h> +#include <inttypes.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <stdarg.h> +#include "bltin.h" + +/* test(1) accepts the following grammar: + oexpr ::= aexpr | aexpr "-o" oexpr ; + aexpr ::= nexpr | nexpr "-a" aexpr ; + nexpr ::= primary | "!" primary + primary ::= unary-operator operand + | operand binary-operator operand + | operand + | "(" oexpr ")" + ; + unary-operator ::= "-r"|"-w"|"-x"|"-f"|"-d"|"-c"|"-b"|"-p"| + "-u"|"-g"|"-k"|"-s"|"-t"|"-z"|"-n"|"-o"|"-O"|"-G"|"-L"|"-S"; + + binary-operator ::= "="|"!="|"-eq"|"-ne"|"-ge"|"-gt"|"-le"|"-lt"| + "-nt"|"-ot"|"-ef"; + operand ::= <any legal UNIX file name> +*/ + +enum token { + EOI, + FILRD, + FILWR, + FILEX, + FILEXIST, + FILREG, + FILDIR, + FILCDEV, + FILBDEV, + FILFIFO, + FILSOCK, + FILSYM, + FILGZ, + FILTT, + FILSUID, + FILSGID, + FILSTCK, + FILNT, + FILOT, + FILEQ, + FILUID, + FILGID, + STREZ, + STRNZ, + STREQ, + STRNE, + STRLT, + STRGT, + INTEQ, + INTNE, + INTGE, + INTGT, + INTLE, + INTLT, + UNOT, + BAND, + BOR, + LPAREN, + RPAREN, + OPERAND +}; + +enum token_types { + UNOP, + BINOP, + BUNOP, + BBINOP, + PAREN +}; + +static struct t_op { + const char *op_text; + short op_num, op_type; +} const ops [] = { + {"-r", FILRD, UNOP}, + {"-w", FILWR, UNOP}, + {"-x", FILEX, UNOP}, + {"-e", FILEXIST,UNOP}, + {"-f", FILREG, UNOP}, + {"-d", FILDIR, UNOP}, + {"-c", FILCDEV,UNOP}, + {"-b", FILBDEV,UNOP}, + {"-p", FILFIFO,UNOP}, + {"-u", FILSUID,UNOP}, + {"-g", FILSGID,UNOP}, + {"-k", FILSTCK,UNOP}, + {"-s", FILGZ, UNOP}, + {"-t", FILTT, UNOP}, + {"-z", STREZ, UNOP}, + {"-n", STRNZ, UNOP}, + {"-h", FILSYM, UNOP}, /* for backwards compat */ + {"-O", FILUID, UNOP}, + {"-G", FILGID, UNOP}, + {"-L", FILSYM, UNOP}, + {"-S", FILSOCK,UNOP}, + {"=", STREQ, BINOP}, + {"!=", STRNE, BINOP}, + {"<", STRLT, BINOP}, + {">", STRGT, BINOP}, + {"-eq", INTEQ, BINOP}, + {"-ne", INTNE, BINOP}, + {"-ge", INTGE, BINOP}, + {"-gt", INTGT, BINOP}, + {"-le", INTLE, BINOP}, + {"-lt", INTLT, BINOP}, + {"-nt", FILNT, BINOP}, + {"-ot", FILOT, BINOP}, + {"-ef", FILEQ, BINOP}, + {"!", UNOT, BUNOP}, + {"-a", BAND, BBINOP}, + {"-o", BOR, BBINOP}, + {"(", LPAREN, PAREN}, + {")", RPAREN, PAREN}, + {0, 0, 0} +}; + +static char **t_wp; +static struct t_op const *t_wp_op; + +static void syntax(const char *, const char *); +static int oexpr(enum token); +static int aexpr(enum token); +static int nexpr(enum token); +static int primary(enum token); +static int binop(void); +static int filstat(char *, enum token); +static enum token t_lex(char **); +static int isoperand(char **); +static int newerf(const char *, const char *); +static int olderf(const char *, const char *); +static int equalf(const char *, const char *); +#ifdef HAVE_FACCESSAT +static int test_file_access(const char *, int); +#else +static int test_access(const struct stat64 *, int); +#endif + +#ifdef HAVE_FACCESSAT +# ifdef HAVE_TRADITIONAL_FACCESSAT +static inline int faccessat_confused_about_superuser(void) { return 1; } +# else +static inline int faccessat_confused_about_superuser(void) { return 0; } +# endif +#endif + +static inline intmax_t getn(const char *s) +{ + return atomax10(s); +} + +static const struct t_op *getop(const char *s) +{ + const struct t_op *op; + + for (op = ops; op->op_text; op++) { + if (strcmp(s, op->op_text) == 0) + return op; + } + + return NULL; +} + +int +testcmd(int argc, char **argv) +{ + const struct t_op *op; + enum token n; + int res = 1; + + if (*argv[0] == '[') { + if (*argv[--argc] != ']') + error("missing ]"); + argv[argc] = NULL; + } + + t_wp_op = NULL; + +recheck: + argv++; + argc--; + + if (argc < 1) + return res; + + /* + * POSIX prescriptions: he who wrote this deserves the Nobel + * peace prize. + */ + switch (argc) { + case 3: + op = getop(argv[1]); + if (op && op->op_type == BINOP) { + n = OPERAND; + goto eval; + } + /* fall through */ + + case 4: + if (!strcmp(argv[0], "(") && !strcmp(argv[argc - 1], ")")) { + argv[--argc] = NULL; + argv++; + argc--; + } else if (!strcmp(argv[0], "!")) { + res = 0; + goto recheck; + } + } + + n = t_lex(argv); + +eval: + t_wp = argv; + res ^= oexpr(n); + argv = t_wp; + + if (argv[0] != NULL && argv[1] != NULL) + syntax(argv[0], "unexpected operator"); + + return res; +} + +static void +syntax(const char *op, const char *msg) +{ + if (op && *op) + error("%s: %s", op, msg); + else + error("%s", msg); +} + +static int +oexpr(enum token n) +{ + int res = 0; + + for (;;) { + res |= aexpr(n); + n = t_lex(t_wp + 1); + if (n != BOR) + break; + n = t_lex(t_wp += 2); + } + return res; +} + +static int +aexpr(enum token n) +{ + int res = 1; + + for (;;) { + if (!nexpr(n)) + res = 0; + n = t_lex(t_wp + 1); + if (n != BAND) + break; + n = t_lex(t_wp += 2); + } + return res; +} + +static int +nexpr(enum token n) +{ + if (n != UNOT) + return primary(n); + + n = t_lex(t_wp + 1); + if (n != EOI) + t_wp++; + return !nexpr(n); +} + +static int +primary(enum token n) +{ + enum token nn; + int res; + + if (n == EOI) + return 0; /* missing expression */ + if (n == LPAREN) { + if ((nn = t_lex(++t_wp)) == RPAREN) + return 0; /* missing expression */ + res = oexpr(nn); + if (t_lex(++t_wp) != RPAREN) + syntax(NULL, "closing paren expected"); + return res; + } + if (t_wp_op && t_wp_op->op_type == UNOP) { + /* unary expression */ + if (*++t_wp == NULL) + syntax(t_wp_op->op_text, "argument expected"); + switch (n) { + case STREZ: + return strlen(*t_wp) == 0; + case STRNZ: + return strlen(*t_wp) != 0; + case FILTT: + return isatty(getn(*t_wp)); +#ifdef HAVE_FACCESSAT + case FILRD: + return test_file_access(*t_wp, R_OK); + case FILWR: + return test_file_access(*t_wp, W_OK); + case FILEX: + return test_file_access(*t_wp, X_OK); +#endif + default: + return filstat(*t_wp, n); + } + } + + if (t_lex(t_wp + 1), t_wp_op && t_wp_op->op_type == BINOP) { + return binop(); + } + + return strlen(*t_wp) > 0; +} + +static int +binop(void) +{ + const char *opnd1, *opnd2; + struct t_op const *op; + + opnd1 = *t_wp; + (void) t_lex(++t_wp); + op = t_wp_op; + + if ((opnd2 = *++t_wp) == (char *)0) + syntax(op->op_text, "argument expected"); + + switch (op->op_num) { + default: +#ifdef DEBUG + abort(); + /* NOTREACHED */ +#endif + case STREQ: + return strcmp(opnd1, opnd2) == 0; + case STRNE: + return strcmp(opnd1, opnd2) != 0; + case STRLT: + return strcmp(opnd1, opnd2) < 0; + case STRGT: + return strcmp(opnd1, opnd2) > 0; + case INTEQ: + return getn(opnd1) == getn(opnd2); + case INTNE: + return getn(opnd1) != getn(opnd2); + case INTGE: + return getn(opnd1) >= getn(opnd2); + case INTGT: + return getn(opnd1) > getn(opnd2); + case INTLE: + return getn(opnd1) <= getn(opnd2); + case INTLT: + return getn(opnd1) < getn(opnd2); + case FILNT: + return newerf (opnd1, opnd2); + case FILOT: + return olderf (opnd1, opnd2); + case FILEQ: + return equalf (opnd1, opnd2); + } +} + +static int +filstat(char *nm, enum token mode) +{ + struct stat64 s; + + if (mode == FILSYM ? lstat64(nm, &s) : stat64(nm, &s)) + return 0; + + switch (mode) { +#ifndef HAVE_FACCESSAT + case FILRD: + return test_access(&s, R_OK); + case FILWR: + return test_access(&s, W_OK); + case FILEX: + return test_access(&s, X_OK); +#endif + case FILEXIST: + return 1; + case FILREG: + return S_ISREG(s.st_mode); + case FILDIR: + return S_ISDIR(s.st_mode); + case FILCDEV: + return S_ISCHR(s.st_mode); + case FILBDEV: + return S_ISBLK(s.st_mode); + case FILFIFO: + return S_ISFIFO(s.st_mode); + case FILSOCK: + return S_ISSOCK(s.st_mode); + case FILSYM: + return S_ISLNK(s.st_mode); + case FILSUID: + return (s.st_mode & S_ISUID) != 0; + case FILSGID: + return (s.st_mode & S_ISGID) != 0; + case FILSTCK: + return (s.st_mode & S_ISVTX) != 0; + case FILGZ: + return !!s.st_size; + case FILUID: + return s.st_uid == geteuid(); + case FILGID: + return s.st_gid == getegid(); + default: + return 1; + } +} + +static enum token t_lex(char **tp) +{ + struct t_op const *op; + char *s = *tp; + + if (s == 0) { + t_wp_op = (struct t_op *)0; + return EOI; + } + + op = getop(s); + if (op && !(op->op_type == UNOP && isoperand(tp)) && + !(op->op_num == LPAREN && !tp[1])) { + t_wp_op = op; + return op->op_num; + } + + t_wp_op = (struct t_op *)0; + return OPERAND; +} + +static int isoperand(char **tp) +{ + struct t_op const *op; + char *s; + + if (!(s = tp[1])) + return 1; + if (!tp[2]) + return 0; + + op = getop(s); + return op && op->op_type == BINOP; +} + +static int +newerf (const char *f1, const char *f2) +{ + struct stat64 b1, b2; + +#ifdef HAVE_ST_MTIM + return (stat64(f1, &b1) == 0 && + stat64(f2, &b2) == 0 && + ( b1.st_mtim.tv_sec > b2.st_mtim.tv_sec || + (b1.st_mtim.tv_sec == b2.st_mtim.tv_sec && (b1.st_mtim.tv_nsec > b2.st_mtim.tv_nsec ))) + ); +#else + return (stat64(f1, &b1) == 0 && + stat64(f2, &b2) == 0 && + b1.st_mtime > b2.st_mtime); +#endif +} + +static int +olderf (const char *f1, const char *f2) +{ + struct stat64 b1, b2; + +#ifdef HAVE_ST_MTIM + return (stat64(f1, &b1) == 0 && + stat64(f2, &b2) == 0 && + (b1.st_mtim.tv_sec < b2.st_mtim.tv_sec || + (b1.st_mtim.tv_sec == b2.st_mtim.tv_sec && (b1.st_mtim.tv_nsec < b2.st_mtim.tv_nsec ))) + ); +#else + return (stat64(f1, &b1) == 0 && + stat64(f2, &b2) == 0 && + b1.st_mtime < b2.st_mtime); +#endif +} + +static int +equalf (const char *f1, const char *f2) +{ + struct stat64 b1, b2; + + return (stat64(f1, &b1) == 0 && + stat64(f2, &b2) == 0 && + b1.st_dev == b2.st_dev && + b1.st_ino == b2.st_ino); +} + +#ifdef HAVE_FACCESSAT +static int has_exec_bit_set(const char *path) +{ + struct stat64 st; + + if (stat64(path, &st)) + return 0; + return st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH); +} + +static int test_file_access(const char *path, int mode) +{ + if (faccessat_confused_about_superuser() && + mode == X_OK && geteuid() == 0 && !has_exec_bit_set(path)) + return 0; + return !faccessat(AT_FDCWD, path, mode, AT_EACCESS); +} +#else /* HAVE_FACCESSAT */ +/* + * The manual, and IEEE POSIX 1003.2, suggests this should check the mode bits, + * not use access(): + * + * True shall indicate only that the write flag is on. The file is not + * writable on a read-only file system even if this test indicates true. + * + * Unfortunately IEEE POSIX 1003.1-2001, as quoted in SuSv3, says only: + * + * True shall indicate that permission to read from file will be granted, + * as defined in "File Read, Write, and Creation". + * + * and that section says: + * + * When a file is to be read or written, the file shall be opened with an + * access mode corresponding to the operation to be performed. If file + * access permissions deny access, the requested operation shall fail. + * + * and of course access permissions are described as one might expect: + * + * * If a process has the appropriate privilege: + * + * * If read, write, or directory search permission is requested, + * access shall be granted. + * + * * If execute permission is requested, access shall be granted if + * execute permission is granted to at least one user by the file + * permission bits or by an alternate access control mechanism; + * otherwise, access shall be denied. + * + * * Otherwise: + * + * * The file permission bits of a file contain read, write, and + * execute/search permissions for the file owner class, file group + * class, and file other class. + * + * * Access shall be granted if an alternate access control mechanism + * is not enabled and the requested access permission bit is set for + * the class (file owner class, file group class, or file other class) + * to which the process belongs, or if an alternate access control + * mechanism is enabled and it allows the requested access; otherwise, + * access shall be denied. + * + * and when I first read this I thought: surely we can't go about using + * open(O_WRONLY) to try this test! However the POSIX 1003.1-2001 Rationale + * section for test does in fact say: + * + * On historical BSD systems, test -w directory always returned false + * because test tried to open the directory for writing, which always + * fails. + * + * and indeed this is in fact true for Seventh Edition UNIX, UNIX 32V, and UNIX + * System III, and thus presumably also for BSD up to and including 4.3. + * + * Secondly I remembered why using open() and/or access() are bogus. They + * don't work right for detecting read and write permissions bits when called + * by root. + * + * Interestingly the 'test' in 4.4BSD was closer to correct (as per + * 1003.2-1992) and it was implemented efficiently with stat() instead of + * open(). + * + * This was apparently broken in NetBSD around about 1994/06/30 when the old + * 4.4BSD implementation was replaced with a (arguably much better coded) + * implementation derived from pdksh. + * + * Note that modern pdksh is yet different again, but still not correct, at + * least not w.r.t. 1003.2-1992. + * + * As I think more about it and read more of the related IEEE docs I don't like + * that wording about 'test -r' and 'test -w' in 1003.1-2001 at all. I very + * much prefer the original wording in 1003.2-1992. It is much more useful, + * and so that's what I've implemented. + * + * (Note that a strictly conforming implementation of 1003.1-2001 is in fact + * totally useless for the case in question since its 'test -w' and 'test -r' + * can never fail for root for any existing files, i.e. files for which 'test + * -e' succeeds.) + * + * The rationale for 1003.1-2001 suggests that the wording was "clarified" in + * 1003.1-2001 to align with the 1003.2b draft. 1003.2b Draft 12 (July 1999), + * which is the latest copy I have, does carry the same suggested wording as is + * in 1003.1-2001, with its rationale saying: + * + * This change is a clarification and is the result of interpretation + * request PASC 1003.2-92 #23 submitted for IEEE Std 1003.2-1992. + * + * That interpretation can be found here: + * + * http://www.pasc.org/interps/unofficial/db/p1003.2/pasc-1003.2-23.html + * + * Not terribly helpful, unfortunately. I wonder who that fence sitter was. + * + * Worse, IMVNSHO, I think the authors of 1003.2b-D12 have mis-interpreted the + * PASC interpretation and appear to be gone against at least one widely used + * implementation (namely 4.4BSD). The problem is that for file access by root + * this means that if test '-r' and '-w' are to behave as if open() were called + * then there's no way for a shell script running as root to check if a file + * has certain access bits set other than by the grotty means of interpreting + * the output of 'ls -l'. This was widely considered to be a bug in V7's + * "test" and is, I believe, one of the reasons why direct use of access() was + * avoided in some more recent implementations! + * + * I have always interpreted '-r' to match '-w' and '-x' as per the original + * wording in 1003.2-1992, not the other way around. I think 1003.2b goes much + * too far the wrong way without any valid rationale and that it's best if we + * stick with 1003.2-1992 and test the flags, and not mimic the behaviour of + * open() since we already know very well how it will work -- existance of the + * file is all that matters to open() for root. + * + * Unfortunately the SVID is no help at all (which is, I guess, partly why + * we're in this mess in the first place :-). + * + * The SysV implementation (at least in the 'test' builtin in /bin/sh) does use + * access(name, 2) even though it also goes to much greater lengths for '-x' + * matching the 1003.2-1992 definition (which is no doubt where that definition + * came from). + * + * The ksh93 implementation uses access() for '-r' and '-w' if + * (euid==uid&&egid==gid), but uses st_mode for '-x' iff running as root. + * i.e. it does strictly conform to 1003.1-2001 (and presumably 1003.2b). + */ +static int test_access(const struct stat64 *sp, int stmode) +{ + gid_t *groups; + register int n; + uid_t euid; + int maxgroups; + + /* + * I suppose we could use access() if not running as root and if we are + * running with ((euid == uid) && (egid == gid)), but we've already + * done the stat() so we might as well just test the permissions + * directly instead of asking the kernel to do it.... + */ + euid = geteuid(); + if (euid == 0) { + if (stmode != X_OK) + return 1; + + /* any bit is good enough */ + stmode = (stmode << 6) | (stmode << 3) | stmode; + } else if (sp->st_uid == euid) + stmode <<= 6; + else if (sp->st_gid == getegid()) + stmode <<= 3; + else { + /* XXX stolen almost verbatim from ksh93.... */ + /* on some systems you can be in several groups */ + maxgroups = getgroups(0, NULL); + groups = stalloc(maxgroups * sizeof(*groups)); + n = getgroups(maxgroups, groups); + while (--n >= 0) { + if (groups[n] == sp->st_gid) { + stmode <<= 3; + break; + } + } + } + + return sp->st_mode & stmode; +} +#endif /* HAVE_FACCESSAT */ diff --git a/bin/dash/src/bltin/times.c b/bin/dash/src/bltin/times.c new file mode 100644 index 00000000..1166a68e --- /dev/null +++ b/bin/dash/src/bltin/times.c @@ -0,0 +1,42 @@ +/* + * Copyright (c) 1999 Herbert Xu <herbert@gondor.apana.org.au> + * This file contains code for the times builtin. + */ + +#include <sys/times.h> +#include <unistd.h> +#ifdef USE_GLIBC_STDIO +#include <stdio.h> +#else +#include "bltin.h" +#endif +#include "system.h" + +int timescmd() { + struct tms buf; + long int clk_tck = sysconf(_SC_CLK_TCK); + int mutime, mstime, mcutime, mcstime; + double utime, stime, cutime, cstime; + + times(&buf); + + utime = (double)buf.tms_utime / clk_tck; + mutime = utime / 60; + utime -= mutime * 60.0; + + stime = (double)buf.tms_stime / clk_tck; + mstime = stime / 60; + stime -= mstime * 60.0; + + cutime = (double)buf.tms_cutime / clk_tck; + mcutime = cutime / 60; + cutime -= mcutime * 60.0; + + cstime = (double)buf.tms_cstime / clk_tck; + mcstime = cstime / 60; + cstime -= mcstime * 60.0; + + printf("%dm%fs %dm%fs\n%dm%fs %dm%fs\n", mutime, utime, mstime, stime, + mcutime, cutime, mcstime, cstime); + return 0; +} diff --git a/bin/dash/src/builtins.def.in b/bin/dash/src/builtins.def.in new file mode 100644 index 00000000..95e420cc --- /dev/null +++ b/bin/dash/src/builtins.def.in @@ -0,0 +1,94 @@ +/* + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)builtins.def 8.4 (Berkeley) 5/4/95 + */ + +/* + * This file lists all the builtin commands. The first column is the name + * of a C routine. + * The -a flag specifies that this is a posix 'assignment builtin' command. + * The -s flag specifies that this is a posix 'special builtin' command. + * The -u flag specifies that this is a posix 'standard utility'. + * The -n flag specifies that this command has a special entry point. + * The rest of the line specifies the command name or names used to run + * the command. + */ + +#ifndef JOBS +#define JOBS 1 +#endif + +#if JOBS +bgcmd -u bg +fgcmd -u fg +#endif + +#ifndef SMALL +histcmd -u fc +#endif + +breakcmd -s break -s continue +cdcmd -u cd chdir +commandcmd -u command +dotcmd -s . +echocmd echo +evalcmd -ns eval +execcmd -s exec +exitcmd -s exit +exportcmd -as export -as readonly +falsecmd -u false +getoptscmd -u getopts +hashcmd -u hash +jobscmd -u jobs +localcmd -as local +printfcmd printf +pwdcmd -u pwd +readcmd -u read +returncmd -s return +setcmd -s set +shiftcmd -s shift +timescmd -s times +trapcmd -s trap +truecmd -s : -u true +typecmd -u type +umaskcmd -u umask +unaliascmd -u unalias +unsetcmd -s unset +waitcmd -u wait +aliascmd -au alias +#ifdef HAVE_GETRLIMIT +ulimitcmd -u ulimit +#endif +testcmd test [ +killcmd -u kill diff --git a/bin/dash/src/cd.c b/bin/dash/src/cd.c new file mode 100644 index 00000000..1ef1dc56 --- /dev/null +++ b/bin/dash/src/cd.c @@ -0,0 +1,332 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/types.h> +#include <sys/stat.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <limits.h> +#ifdef __CYGWIN__ +#include <sys/cygwin.h> +#endif + +/* + * The cd and pwd commands. + */ + +#include "shell.h" +#include "var.h" +#include "nodes.h" /* for jobs.h */ +#include "jobs.h" +#include "options.h" +#include "output.h" +#include "memalloc.h" +#include "error.h" +#include "exec.h" +#include "redir.h" +#include "main.h" +#include "mystring.h" +#include "show.h" +#include "cd.h" + +#define CD_PHYSICAL 1 +#define CD_PRINT 2 + +STATIC int docd(const char *, int); +STATIC const char *updatepwd(const char *); +STATIC char *getpwd(void); +STATIC int cdopt(void); + +STATIC char *curdir = nullstr; /* current working directory */ +STATIC char *physdir = nullstr; /* physical working directory */ + +STATIC int +cdopt() +{ + int flags = 0; + int i, j; + + j = 'L'; + while ((i = nextopt("LP"))) { + if (i != j) { + flags ^= CD_PHYSICAL; + j = i; + } + } + + return flags; +} + +int +cdcmd(int argc, char **argv) +{ + const char *dest; + const char *path; + const char *p; + char c; + struct stat64 statb; + int flags; + int len; + + flags = cdopt(); + dest = *argptr; + if (!dest) + dest = bltinlookup(homestr); + else if (dest[0] == '-' && dest[1] == '\0') { + dest = bltinlookup("OLDPWD"); + flags |= CD_PRINT; + } + if (!dest) + dest = nullstr; + if (*dest == '/') + goto step6; + if (*dest == '.') { + c = dest[1]; +dotdot: + switch (c) { + case '\0': + case '/': + goto step6; + case '.': + c = dest[2]; + if (c != '.') + goto dotdot; + } + } + if (!*dest) + dest = "."; + path = bltinlookup("CDPATH"); + while (p = path, (len = padvance_magic(&path, dest, 0)) >= 0) { + c = *p; + p = stalloc(len); + + if (stat64(p, &statb) >= 0 && S_ISDIR(statb.st_mode)) { + if (c && c != ':') + flags |= CD_PRINT; +docd: + if (!docd(p, flags)) + goto out; + goto err; + } + } + +step6: + p = dest; + goto docd; + +err: + sh_error("can't cd to %s", dest); + /* NOTREACHED */ +out: + if (flags & CD_PRINT) + out1fmt(snlfmt, curdir); + return 0; +} + + +/* + * Actually do the chdir. We also call hashcd to let the routines in exec.c + * know that the current directory has changed. + */ + +STATIC int +docd(const char *dest, int flags) +{ + const char *dir = 0; + int err; + + TRACE(("docd(\"%s\", %d) called\n", dest, flags)); + + INTOFF; + if (!(flags & CD_PHYSICAL)) { + dir = updatepwd(dest); + if (dir) + dest = dir; + } + err = chdir(dest); + if (err) + goto out; + setpwd(dir, 1); + hashcd(); +out: + INTON; + return err; +} + + +/* + * Update curdir (the name of the current directory) in response to a + * cd command. + */ + +STATIC const char * +updatepwd(const char *dir) +{ + char *new; + char *p; + char *cdcomppath; + const char *lim; + +#ifdef __CYGWIN__ + /* On cygwin, thanks to drive letters, some absolute paths do + not begin with slash; but cygwin includes a function that + forces normalization to the posix form */ + char pathbuf[PATH_MAX]; + if (cygwin_conv_path(CCP_WIN_A_TO_POSIX | CCP_RELATIVE, dir, pathbuf, + sizeof(pathbuf)) < 0) + sh_error("can't normalize %s", dir); + dir = pathbuf; +#endif + + cdcomppath = sstrdup(dir); + STARTSTACKSTR(new); + if (*dir != '/') { + if (curdir == nullstr) + return 0; + new = stputs(curdir, new); + } + new = makestrspace(strlen(dir) + 2, new); + lim = stackblock() + 1; + if (*dir != '/') { + if (new[-1] != '/') + USTPUTC('/', new); + if (new > lim && *lim == '/') + lim++; + } else { + USTPUTC('/', new); + cdcomppath++; + if (dir[1] == '/' && dir[2] != '/') { + USTPUTC('/', new); + cdcomppath++; + lim++; + } + } + p = strtok(cdcomppath, "/"); + while (p) { + switch(*p) { + case '.': + if (p[1] == '.' && p[2] == '\0') { + while (new > lim) { + STUNPUTC(new); + if (new[-1] == '/') + break; + } + break; + } else if (p[1] == '\0') + break; + /* fall through */ + default: + new = stputs(p, new); + USTPUTC('/', new); + } + p = strtok(0, "/"); + } + if (new > lim) + STUNPUTC(new); + *new = 0; + return stackblock(); +} + + +/* + * Find out what the current directory is. If we already know the current + * directory, this routine returns immediately. + */ +inline +STATIC char * +getpwd() +{ +#ifdef __GLIBC__ + char *dir = getcwd(0, 0); + + if (dir) + return dir; +#else + char buf[PATH_MAX]; + + if (getcwd(buf, sizeof(buf))) + return savestr(buf); +#endif + + sh_warnx("getcwd() failed: %s", strerror(errno)); + return nullstr; +} + +int +pwdcmd(int argc, char **argv) +{ + int flags; + const char *dir = curdir; + + flags = cdopt(); + if (flags) { + if (physdir == nullstr) + setpwd(dir, 0); + dir = physdir; + } + out1fmt(snlfmt, dir); + return 0; +} + +void +setpwd(const char *val, int setold) +{ + char *oldcur, *dir; + + oldcur = dir = curdir; + + if (setold) { + setvar("OLDPWD", oldcur, VEXPORT); + } + INTOFF; + if (physdir != nullstr) { + if (physdir != oldcur) + free(physdir); + physdir = nullstr; + } + if (oldcur == val || !val) { + char *s = getpwd(); + physdir = s; + if (!val) + dir = s; + } else + dir = savestr(val); + if (oldcur != dir && oldcur != nullstr) { + free(oldcur); + } + curdir = dir; + INTON; + setvar("PWD", dir, VEXPORT); +} diff --git a/bin/dash/src/cd.h b/bin/dash/src/cd.h new file mode 100644 index 00000000..87631619 --- /dev/null +++ b/bin/dash/src/cd.h @@ -0,0 +1,35 @@ +/*- + * Copyright (c) 1995 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +int cdcmd(int, char **); +int pwdcmd(int, char **); +void setpwd(const char *, int); diff --git a/bin/dash/src/dash.1 b/bin/dash/src/dash.1 new file mode 100644 index 00000000..9bc51cd6 --- /dev/null +++ b/bin/dash/src/dash.1 @@ -0,0 +1,2361 @@ +.\" Copyright (c) 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" Copyright (c) 1997-2005 +.\" Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Kenneth Almquist. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)sh.1 8.6 (Berkeley) 5/4/95 +.\" +.Dd December 22, 2020 +.Os +.Dt DASH 1 +.Sh NAME +.Nm dash +.Nd command interpreter (shell) +.Sh SYNOPSIS +.Nm +.Bk -words +.Op Fl aCefnuvxIimqVEb +.Op Cm +aCefnuvxIimqVEb +.Ek +.Bk -words +.Op Fl o Ar option_name +.Op Cm +o Ar option_name +.Ek +.Bk -words +.Op Ar command_file Oo Ar argument ... Oc +.Ek +.Nm +.Fl c +.Bk -words +.Op Fl aCefnuvxIimqVEb +.Op Cm +aCefnuvxIimqVEb +.Ek +.Bk -words +.Op Fl o Ar option_name +.Op Cm +o Ar option_name +.Ek +.Bk -words +.Ar command_string +.Op Ar command_name Oo Ar argument ... Oc +.Ek +.Nm +.Fl s +.Bk -words +.Op Fl aCefnuvxIimqVEb +.Op Cm +aCefnuvxIimqVEb +.Ek +.Bk -words +.Op Fl o Ar option_name +.Op Cm +o Ar option_name +.Ek +.Bk -words +.Op Ar argument ... +.Ek +.Sh DESCRIPTION +.Nm +is the standard command interpreter for the system. +The current version of +.Nm +is in the process of being changed to conform with the +.Tn POSIX +1003.2 and 1003.2a specifications for the shell. +This version has many +features which make it appear similar in some respects to the Korn shell, +but it is not a Korn shell clone (see +.Xr ksh 1 ) . +Only features designated by +.Tn POSIX , +plus a few Berkeley extensions, are being incorporated into this shell. +This man page is not intended +to be a tutorial or a complete specification of the shell. +.Ss Overview +The shell is a command that reads lines from either a file or the +terminal, interprets them, and generally executes other commands. +It is the program that is running when a user logs into the system +(although a user can select a different shell with the +.Xr chsh 1 +command). +The shell implements a language that has flow control +constructs, a macro facility that provides a variety of features in +addition to data storage, along with built in history and line editing +capabilities. +It incorporates many features to aid interactive use and +has the advantage that the interpretative language is common to both +interactive and non-interactive use (shell scripts). +That is, commands +can be typed directly to the running shell or can be put into a file and +the file can be executed directly by the shell. +.Ss Invocation +If no args are present and if the standard input of the shell +is connected to a terminal (or if the +.Fl i +flag is set), +and the +.Fl c +option is not present, the shell is considered an interactive shell. +An interactive shell generally prompts before each command and handles +programming and command errors differently (as described below). +When first starting, +the shell inspects argument 0, and if it begins with a dash +.Sq - , +the shell is also considered +a login shell. +This is normally done automatically by the system +when the user first logs in. +A login shell first reads commands +from the files +.Pa /etc/profile +and +.Pa .profile +if they exist. +If the environment variable +.Ev ENV +is set on entry to an interactive shell, or is set in the +.Pa .profile +of a login shell, the shell next reads +commands from the file named in +.Ev ENV . +Therefore, a user should place commands that are to be executed only at +login time in the +.Pa .profile +file, and commands that are executed for every interactive shell inside the +.Ev ENV +file. +To set the +.Ev ENV +variable to some file, place the following line in your +.Pa .profile +of your home directory +.Pp +.Dl ENV=$HOME/.shinit; export ENV +.Pp +substituting for +.Dq .shinit +any filename you wish. +.Pp +If command line arguments besides the options have been specified, then +the shell treats the first argument as the name of a file from which to +read commands (a shell script), and the remaining arguments are set as the +positional parameters of the shell ($1, $2, etc). +Otherwise, the shell +reads commands from its standard input. +.Ss Argument List Processing +All of the single letter options that have a corresponding name can be +used as an argument to the +.Fl o +option. +The set +.Fl o +name is provided next to the single letter option in +the description below. +Specifying a dash +.Dq - +turns the option on, while using a plus +.Dq + +disables the option. +The following options can be set from the command line or +with the +.Ic set +builtin (described later). +.Bl -tag -width aaaallexportfoo -offset indent +.It Fl a Em allexport +Export all variables assigned to. +.It Fl c +Read commands from the +.Ar command_string +operand instead of from the standard input. +Special parameter 0 will be set from the +.Ar command_name +operand and the positional parameters ($1, $2, etc.) +set from the remaining argument operands. +.It Fl C Em noclobber +Don't overwrite existing files with +.Dq \*[Gt] . +.It Fl e Em errexit +If not interactive, exit immediately if any untested command fails. +The exit status of a command is considered to be +explicitly tested if the command is used to control an +.Ic if , +.Ic elif , +.Ic while , +or +.Ic until ; +or if the command is the left hand operand of an +.Dq && +or +.Dq || +operator. +.It Fl f Em noglob +Disable pathname expansion. +.It Fl n Em noexec +If not interactive, read commands but do not execute them. +This is useful for checking the syntax of shell scripts. +.It Fl u Em nounset +Write a message to standard error when attempting to expand a variable +that is not set, and if the shell is not interactive, exit immediately. +.It Fl v Em verbose +The shell writes its input to standard error as it is read. +Useful for debugging. +.It Fl x Em xtrace +Write each command to standard error (preceded by a +.Sq +\ ) +before it is executed. +Useful for debugging. +.It Fl I Em ignoreeof +Ignore EOF's from input when interactive. +.It Fl i Em interactive +Force the shell to behave interactively. +.It Fl l +Make dash act as if it had been invoked as a login shell. +.It Fl m Em monitor +Turn on job control (set automatically when interactive). +.It Fl s Em stdin +Read commands from standard input (set automatically if no file arguments +are present). +This option has no effect when set after the shell has +already started running (i.e. with +.Ic set ) . +.It Fl V Em vi +Enable the built-in +.Xr vi 1 +command line editor (disables +.Fl E +if it has been set). +.It Fl E Em emacs +Enable the built-in +.Xr emacs 1 +command line editor (disables +.Fl V +if it has been set). +.It Fl b Em notify +Enable asynchronous notification of background job completion. +(UNIMPLEMENTED for 4.4alpha) +.El +.Ss Lexical Structure +The shell reads input in terms of lines from a file and breaks it up into +words at whitespace (blanks and tabs), and at certain sequences of +characters that are special to the shell called +.Dq operators . +There are two types of operators: control operators and redirection +operators (their meaning is discussed later). +Following is a list of operators: +.Bl -ohang -offset indent +.It "Control operators:" +.Dl & && \&( \&) \&; ;; | || \*[Lt]newline\*[Gt] +.It "Redirection operators:" +.Dl \*[Lt] \*[Gt] \*[Gt]| \*[Lt]\*[Lt] \*[Gt]\*[Gt] \*[Lt]& \*[Gt]& \*[Lt]\*[Lt]- \*[Lt]\*[Gt] +.El +.Ss Quoting +Quoting is used to remove the special meaning of certain characters or +words to the shell, such as operators, whitespace, or keywords. +There are three types of quoting: matched single quotes, +matched double quotes, and backslash. +.Ss Backslash +A backslash preserves the literal meaning of the following +character, with the exception of +.Aq newline . +A backslash preceding a +.Aq newline +is treated as a line continuation. +.Ss Single Quotes +Enclosing characters in single quotes preserves the literal meaning of all +the characters (except single quotes, making it impossible to put +single-quotes in a single-quoted string). +.Ss Double Quotes +Enclosing characters within double quotes preserves the literal +meaning of all characters except dollarsign +.Pq $ , +backquote +.Pq ` , +and backslash +.Pq \e . +The backslash inside double quotes is historically weird, and serves to +quote only the following characters: +.Dl $ ` \*q \e \*[Lt]newline\*[Gt] . +Otherwise it remains literal. +.Ss Reserved Words +Reserved words are words that have special meaning to the +shell and are recognized at the beginning of a line and +after a control operator. +The following are reserved words: +.Bl -column while while while while while -offset indent +.It ! Ta elif Ta fi Ta while Ta case +.It else Ta for Ta then Ta { Ta } +.It do Ta done Ta until Ta if Ta esac +.El +.Pp +Their meaning is discussed later. +.Ss Aliases +An alias is a name and corresponding value set using the +.Xr alias 1 +builtin command. +Whenever a reserved word may occur (see above), +and after checking for reserved words, the shell +checks the word to see if it matches an alias. +If it does, it replaces it in the input stream with its value. +For example, if there is an alias called +.Dq lf +with the value +.Dq "ls -F" , +then the input: +.Pp +.Dl lf foobar Aq return +.Pp +would become +.Pp +.Dl ls -F foobar Aq return +.Pp +Aliases provide a convenient way for naive users to create shorthands for +commands without having to learn how to create functions with arguments. +They can also be used to create lexically obscure code. +This use is discouraged. +.Ss Commands +The shell interprets the words it reads according to a language, the +specification of which is outside the scope of this man page (refer to the +BNF in the +.Tn POSIX +1003.2 document). +Essentially though, a line is read and if the first +word of the line (or after a control operator) is not a reserved word, +then the shell has recognized a simple command. +Otherwise, a complex +command or some other special construct may have been recognized. +.Ss Simple Commands +If a simple command has been recognized, the shell performs +the following actions: +.Bl -enum -offset indent +.It +Leading words of the form +.Dq name=value +are stripped off and assigned to the environment of the simple command. +Redirection operators and their arguments (as described below) are +stripped off and saved for processing. +.It +The remaining words are expanded as described in +the section called +.Dq Expansions , +and the first remaining word is considered the command name and the +command is located. +The remaining words are considered the arguments of the command. +If no command name resulted, then the +.Dq name=value +variable assignments recognized in item 1 affect the current shell. +.It +Redirections are performed as described in the next section. +.El +.Ss Redirections +Redirections are used to change where a command reads its input or sends +its output. +In general, redirections open, close, or duplicate an +existing reference to a file. +The overall format used for redirection is: +.Pp +.Dl [n] Va redir-op Ar file +.Pp +where +.Va redir-op +is one of the redirection operators mentioned previously. +Following is a list of the possible redirections. +The +.Bq n +is an optional number between 0 and 9, as in +.Sq 3 +(not +.Sq Bq 3 ) , +that refers to a file descriptor. +.Bl -tag -width aaabsfiles -offset indent +.It [n] Ns \*[Gt] file +Redirect standard output (or n) to file. +.It [n] Ns \*[Gt]| file +Same, but override the +.Fl C +option. +.It [n] Ns \*[Gt]\*[Gt] file +Append standard output (or n) to file. +.It [n] Ns \*[Lt] file +Redirect standard input (or n) from file. +.It [n1] Ns \*[Lt]& Ns n2 +Copy file descriptor n2 as stdout (or fd n1). +fd n2. +.It [n] Ns \*[Lt]&- +Close standard input (or n). +.It [n1] Ns \*[Gt]& Ns n2 +Copy file descriptor n2 as stdin (or fd n1). +fd n2. +.It [n] Ns \*[Gt]&- +Close standard output (or n). +.It [n] Ns \*[Lt]\*[Gt] file +Open file for reading and writing on standard input (or n). +.El +.Pp +The following redirection is often called a +.Dq here-document . +.Bl -item -offset indent +.It +.Li [n]\*[Lt]\*[Lt] delimiter +.Dl here-doc-text ... +.Li delimiter +.El +.Pp +All the text on successive lines up to the delimiter is saved away and +made available to the command on standard input, or file descriptor n if +it is specified. +If the delimiter as specified on the initial line is +quoted, then the here-doc-text is treated literally, otherwise the text is +subjected to parameter expansion, command substitution, and arithmetic +expansion (as described in the section on +.Dq Expansions ) . +If the operator is +.Dq \*[Lt]\*[Lt]- +instead of +.Dq \*[Lt]\*[Lt] , +then leading tabs in the here-doc-text are stripped. +.Ss Search and Execution +There are three types of commands: shell functions, builtin commands, and +normal programs -- and the command is searched for (by name) in that order. +They each are executed in a different way. +.Pp +When a shell function is executed, all of the shell positional parameters +(except $0, which remains unchanged) are set to the arguments of the shell +function. +The variables which are explicitly placed in the environment of +the command (by placing assignments to them before the function name) are +made local to the function and are set to the values given. +Then the command given in the function definition is executed. +The positional parameters are restored to their original values +when the command completes. +This all occurs within the current shell. +.Pp +Shell builtins are executed internally to the shell, without spawning a +new process. +.Pp +Otherwise, if the command name doesn't match a function or builtin, the +command is searched for as a normal program in the file system (as +described in the next section). +When a normal program is executed, the shell runs the program, +passing the arguments and the environment to the program. +If the program is not a normal executable file (i.e., if it does +not begin with the "magic number" whose +.Tn ASCII +representation is "#!", so +.Xr execve 2 +returns +.Er ENOEXEC +then) the shell will interpret the program in a subshell. +The child shell will reinitialize itself in this case, +so that the effect will be as if a +new shell had been invoked to handle the ad-hoc shell script, except that +the location of hashed commands located in the parent shell will be +remembered by the child. +.Pp +Note that previous versions of this document and the source code itself +misleadingly and sporadically refer to a shell script without a magic +number as a "shell procedure". +.Ss Path Search +When locating a command, the shell first looks to see if it has a shell +function by that name. +Then it looks for a builtin command by that name. +If a builtin command is not found, one of two things happen: +.Bl -enum +.It +Command names containing a slash are simply executed without performing +any searches. +.It +The shell searches each entry in +.Ev PATH +in turn for the command. +The value of the +.Ev PATH +variable should be a series of entries separated by colons. +Each entry consists of a directory name. +The current directory may be indicated +implicitly by an empty directory name, or explicitly by a single period. +.El +.Ss Command Exit Status +Each command has an exit status that can influence the behaviour +of other shell commands. +The paradigm is that a command exits +with zero for normal or success, and non-zero for failure, +error, or a false indication. +The man page for each command +should indicate the various exit codes and what they mean. +Additionally, the builtin commands return exit codes, as does +an executed shell function. +.Pp +If a command consists entirely of variable assignments then the +exit status of the command is that of the last command substitution +if any, otherwise 0. +.Ss Complex Commands +Complex commands are combinations of simple commands with control +operators or reserved words, together creating a larger complex command. +More generally, a command is one of the following: +.Bl -bullet +.It +simple command +.It +pipeline +.It +list or compound-list +.It +compound command +.It +function definition +.El +.Pp +Unless otherwise stated, the exit status of a command is that of the last +simple command executed by the command. +.Ss Pipelines +A pipeline is a sequence of one or more commands separated +by the control operator |. +The standard output of all but +the last command is connected to the standard input +of the next command. +The standard output of the last +command is inherited from the shell, as usual. +.Pp +The format for a pipeline is: +.Pp +.Dl [!] command1 [ | command2 ...] +.Pp +The standard output of command1 is connected to the standard input of +command2. +The standard input, standard output, or both of a command is +considered to be assigned by the pipeline before any redirection specified +by redirection operators that are part of the command. +.Pp +If the pipeline is not in the background (discussed later), the shell +waits for all commands to complete. +.Pp +If the reserved word ! does not precede the pipeline, the exit status is +the exit status of the last command specified in the pipeline. +Otherwise, the exit status is the logical NOT of the exit status of the +last command. +That is, if the last command returns zero, the exit status +is 1; if the last command returns greater than zero, the exit status is +zero. +.Pp +Because pipeline assignment of standard input or standard output or both +takes place before redirection, it can be modified by redirection. +For example: +.Pp +.Dl $ command1 2\*[Gt]&1 | command2 +.Pp +sends both the standard output and standard error of command1 +to the standard input of command2. +.Pp +A ; or +.Aq newline +terminator causes the preceding AND-OR-list (described +next) to be executed sequentially; a & causes asynchronous execution of +the preceding AND-OR-list. +.Pp +Note that unlike some other shells, each process in the pipeline is a +child of the invoking shell (unless it is a shell builtin, in which case +it executes in the current shell -- but any effect it has on the +environment is wiped). +.Ss Background Commands -- & +If a command is terminated by the control operator ampersand (&), the +shell executes the command asynchronously -- that is, the shell does not +wait for the command to finish before executing the next command. +.Pp +The format for running a command in background is: +.Pp +.Dl command1 & [command2 & ...] +.Pp +If the shell is not interactive, the standard input of an asynchronous +command is set to +.Pa /dev/null . +.Ss Lists -- Generally Speaking +A list is a sequence of zero or more commands separated by newlines, +semicolons, or ampersands, and optionally terminated by one of these three +characters. +The commands in a list are executed in the order they are written. +If command is followed by an ampersand, the shell starts the +command and immediately proceeds onto the next command; otherwise it waits +for the command to terminate before proceeding to the next one. +.Ss Short-Circuit List Operators +.Dq && +and +.Dq || +are AND-OR list operators. +.Dq && +executes the first command, and then executes the second command if and only +if the exit status of the first command is zero. +.Dq || +is similar, but executes the second command if and only if the exit status +of the first command is nonzero. +.Dq && +and +.Dq || +both have the same priority. +.Ss Flow-Control Constructs -- if, while, for, case +The syntax of the if command is +.Bd -literal -offset indent +if list +then list +[ elif list +then list ] ... +[ else list ] +fi +.Ed +.Pp +The syntax of the while command is +.Bd -literal -offset indent +while list +do list +done +.Ed +.Pp +The two lists are executed repeatedly while the exit status of the +first list is zero. +The until command is similar, but has the word +until in place of while, which causes it to +repeat until the exit status of the first list is zero. +.Pp +The syntax of the for command is +.Bd -literal -offset indent +for variable [ in [ word ... ] ] +do list +done +.Ed +.Pp +The words following +.Pa in +are expanded, and then the list is executed repeatedly with the +variable set to each word in turn. +Omitting in word ... is equivalent to in "$@". +.Pp +The syntax of the break and continue command is +.Bd -literal -offset indent +break [ num ] +continue [ num ] +.Ed +.Pp +Break terminates the num innermost for or while loops. +Continue continues with the next iteration of the innermost loop. +These are implemented as builtin commands. +.Pp +The syntax of the case command is +.Bd -literal -offset indent +case word in +[(]pattern) list ;; +\&... +esac +.Ed +.Pp +The pattern can actually be one or more patterns (see +.Sx Shell Patterns +described later), separated by +.Dq \*(Ba +characters. +The +.Do +( +.Dc +character before the pattern is optional. +.Ss Grouping Commands Together +Commands may be grouped by writing either +.Pp +.Dl (list) +.Pp +or +.Pp +.Dl { list; } +.Pp +The first of these executes the commands in a subshell. +Builtin commands grouped into a (list) will not affect the current shell. +The second form does not fork another shell so is slightly more efficient. +Grouping commands together this way allows you to redirect +their output as though they were one program: +.Pp +.Bd -literal -offset indent +{ printf \*q hello \*q ; printf \*q world\\n" ; } \*[Gt] greeting +.Ed +.Pp +Note that +.Dq } +must follow a control operator (here, +.Dq \&; ) +so that it is recognized as a reserved word and not as another command argument. +.Ss Functions +The syntax of a function definition is +.Pp +.Dl name ( ) command +.Pp +A function definition is an executable statement; when executed it +installs a function named name and returns an exit status of zero. +The command is normally a list enclosed between +.Dq { +and +.Dq } . +.Pp +Variables may be declared to be local to a function by using a local +command. +This should appear as the first statement of a function, and the syntax is +.Pp +.Dl local [ variable | - ] ... +.Pp +Local is implemented as a builtin command. +.Pp +When a variable is made local, it inherits the initial value and exported +and readonly flags from the variable with the same name in the surrounding +scope, if there is one. +Otherwise, the variable is initially unset. +The shell uses dynamic scoping, so that if you make the variable x local to +function f, which then calls function g, references to the variable x made +inside g will refer to the variable x declared inside f, not to the global +variable named x. +.Pp +The only special parameter that can be made local is +.Dq - . +Making +.Dq - +local any shell options that are changed via the set command inside the +function to be restored to their original values when the function +returns. +.Pp +The syntax of the return command is +.Pp +.Dl return [ exitstatus ] +.Pp +It terminates the currently executing function. +Return is implemented as a builtin command. +.Ss Variables and Parameters +The shell maintains a set of parameters. +A parameter denoted by a name is called a variable. +When starting up, the shell turns all the environment +variables into shell variables. +New variables can be set using the form +.Pp +.Dl name=value +.Pp +Variables set by the user must have a name consisting solely of +alphabetics, numerics, and underscores - the first of which must not be +numeric. +A parameter can also be denoted by a number or a special +character as explained below. +.Ss Positional Parameters +A positional parameter is a parameter denoted by a number (n \*[Gt] 0). +The shell sets these initially to the values of its command line arguments +that follow the name of the shell script. +The +.Ic set +builtin can also be used to set or reset them. +.Ss Special Parameters +A special parameter is a parameter denoted by one of the following special +characters. +The value of the parameter is listed next to its character. +.Bl -tag -width thinhyphena +.It * +Expands to the positional parameters, starting from one. +When the +expansion occurs within a double-quoted string it expands to a single +field with the value of each parameter separated by the first character of +the +.Ev IFS +variable, or by a +.Aq space +if +.Ev IFS +is unset. +.It @ +Expands to the positional parameters, starting from one. +When the expansion occurs within double-quotes, each positional +parameter expands as a separate argument. +If there are no positional parameters, the +expansion of @ generates zero arguments, even when @ is +double-quoted. +What this basically means, for example, is +if $1 is +.Dq abc +and $2 is +.Dq def ghi , +then +.Qq $@ +expands to +the two arguments: +.Pp +.Sm off +.Dl \*q abc \*q \ \*q def\ ghi \*q +.Sm on +.It # +Expands to the number of positional parameters. +.It ? +Expands to the exit status of the most recent pipeline. +.It - (Hyphen.) +Expands to the current option flags (the single-letter +option names concatenated into a string) as specified on +invocation, by the set builtin command, or implicitly +by the shell. +.It $ +Expands to the process ID of the invoked shell. +A subshell retains the same value of $ as its parent. +.It ! +Expands to the process ID of the most recent background +command executed from the current shell. +For a pipeline, the process ID is that of the last command in the pipeline. +.It 0 (Zero.) +Expands to the name of the shell or shell script. +.El +.Ss Word Expansions +This clause describes the various expansions that are performed on words. +Not all expansions are performed on every word, as explained later. +.Pp +Tilde expansions, parameter expansions, command substitutions, arithmetic +expansions, and quote removals that occur within a single word expand to a +single field. +It is only field splitting or pathname expansion that can +create multiple fields from a single word. +The single exception to this +rule is the expansion of the special parameter @ within double-quotes, as +was described above. +.Pp +The order of word expansion is: +.Bl -enum +.It +Tilde Expansion, Parameter Expansion, Command Substitution, +Arithmetic Expansion (these all occur at the same time). +.It +Field Splitting is performed on fields +generated by step (1) unless the +.Ev IFS +variable is null. +.It +Pathname Expansion (unless set +.Fl f +is in effect). +.It +Quote Removal. +.El +.Pp +The $ character is used to introduce parameter expansion, command +substitution, or arithmetic evaluation. +.Ss Tilde Expansion (substituting a user's home directory) +A word beginning with an unquoted tilde character (~) is +subjected to tilde expansion. +All the characters up to +a slash (/) or the end of the word are treated as a username +and are replaced with the user's home directory. +If the username is missing (as in +.Pa ~/foobar ) , +the tilde is replaced with the value of the +.Va HOME +variable (the current user's home directory). +.Ss Parameter Expansion +The format for parameter expansion is as follows: +.Pp +.Dl ${expression} +.Pp +where expression consists of all characters until the matching +.Dq } . +Any +.Dq } +escaped by a backslash or within a quoted string, and characters in +embedded arithmetic expansions, command substitutions, and variable +expansions, are not examined in determining the matching +.Dq } . +.Pp +The simplest form for parameter expansion is: +.Pp +.Dl ${parameter} +.Pp +The value, if any, of parameter is substituted. +.Pp +The parameter name or symbol can be enclosed in braces, which are +optional except for positional parameters with more than one digit or +when parameter is followed by a character that could be interpreted as +part of the name. +If a parameter expansion occurs inside double-quotes: +.Bl -enum +.It +Pathname expansion is not performed on the results of the expansion. +.It +Field splitting is not performed on the results of the +expansion, with the exception of @. +.El +.Pp +In addition, a parameter expansion can be modified by using one of the +following formats. +.Bl -tag -width aaparameterwordaaaaa +.It ${parameter:-word} +Use Default Values. +If parameter is unset or null, the expansion of word +is substituted; otherwise, the value of parameter is substituted. +.It ${parameter:=word} +Assign Default Values. +If parameter is unset or null, the expansion of +word is assigned to parameter. +In all cases, the final value of parameter is substituted. +Only variables, not positional parameters or special +parameters, can be assigned in this way. +.It ${parameter:?[word]} +Indicate Error if Null or Unset. +If parameter is unset or null, the +expansion of word (or a message indicating it is unset if word is omitted) +is written to standard error and the shell exits with a nonzero exit status. +Otherwise, the value of parameter is substituted. +An interactive shell need not exit. +.It ${parameter:+word} +Use Alternative Value. +If parameter is unset or null, null is +substituted; otherwise, the expansion of word is substituted. +.El +.Pp +In the parameter expansions shown previously, use of the colon in the +format results in a test for a parameter that is unset or null; omission +of the colon results in a test for a parameter that is only unset. +.Bl -tag -width aaparameterwordaaaaa +.It ${#parameter} +String Length. +The length in characters of the value of parameter. +.El +.Pp +The following four varieties of parameter expansion provide for substring +processing. +In each case, pattern matching notation (see +.Sx Shell Patterns ) , +rather than regular expression notation, is used to evaluate the patterns. +If parameter is * or @, the result of the expansion is unspecified. +Enclosing the full parameter expansion string in double-quotes does not +cause the following four varieties of pattern characters to be quoted, +whereas quoting characters within the braces has this effect. +.Bl -tag -width aaparameterwordaaaaa +.It ${parameter%word} +Remove Smallest Suffix Pattern. +The word is expanded to produce a pattern. +The parameter expansion then results in parameter, with the +smallest portion of the suffix matched by the pattern deleted. +.It ${parameter%%word} +Remove Largest Suffix Pattern. +The word is expanded to produce a pattern. +The parameter expansion then results in parameter, with the largest +portion of the suffix matched by the pattern deleted. +.It ${parameter#word} +Remove Smallest Prefix Pattern. +The word is expanded to produce a pattern. +The parameter expansion then results in parameter, with the +smallest portion of the prefix matched by the pattern deleted. +.It ${parameter##word} +Remove Largest Prefix Pattern. +The word is expanded to produce a pattern. +The parameter expansion then results in parameter, with the largest +portion of the prefix matched by the pattern deleted. +.El +.Ss Command Substitution +Command substitution allows the output of a command to be substituted in +place of the command name itself. +Command substitution occurs when the command is enclosed as follows: +.Pp +.Dl $(command) +.Pp +or +.Po +.Dq backquoted +version +.Pc : +.Pp +.Dl `command` +.Pp +The shell expands the command substitution by executing command in a +subshell environment and replacing the command substitution with the +standard output of the command, removing sequences of one or more +.Ao newline Ac Ns s +at the end of the substitution. +(Embedded +.Ao newline Ac Ns s +before +the end of the output are not removed; however, during field splitting, +they may be translated into +.Ao space Ac Ns s , +depending on the value of +.Ev IFS +and quoting that is in effect.) +.Ss Arithmetic Expansion +Arithmetic expansion provides a mechanism for evaluating an arithmetic +expression and substituting its value. +The format for arithmetic expansion is as follows: +.Pp +.Dl $((expression)) +.Pp +The expression is treated as if it were in double-quotes, except +that a double-quote inside the expression is not treated specially. +The shell expands all tokens in the expression for parameter expansion, +command substitution, and quote removal. +.Pp +Next, the shell treats this as an arithmetic expression and +substitutes the value of the expression. +.Ss White Space Splitting (Field Splitting) +After parameter expansion, command substitution, and +arithmetic expansion the shell scans the results of +expansions and substitutions that did not occur in double-quotes for +field splitting and multiple fields can result. +.Pp +The shell treats each character of the +.Ev IFS +as a delimiter and uses the delimiters to split the results of parameter +expansion and command substitution into fields. +.Ss Pathname Expansion (File Name Generation) +Unless the +.Fl f +flag is set, file name generation is performed after word splitting is +complete. +Each word is viewed as a series of patterns, separated by slashes. +The process of expansion replaces the word with the names of all +existing files whose names can be formed by replacing each pattern with a +string that matches the specified pattern. +There are two restrictions on +this: first, a pattern cannot match a string containing a slash, and +second, a pattern cannot match a string starting with a period unless the +first character of the pattern is a period. +The next section describes the +patterns used for both Pathname Expansion and the +.Ic case +command. +.Ss Shell Patterns +A pattern consists of normal characters, which match themselves, +and meta-characters. +The meta-characters are +.Dq \&! , +.Dq * , +.Dq \&? , +and +.Dq \&[ . +These characters lose their special meanings if they are quoted. +When command or variable substitution is performed +and the dollar sign or back quotes are not double quoted, +the value of the variable or the output of +the command is scanned for these characters and they are turned into +meta-characters. +.Pp +An asterisk +.Pq Dq * +matches any string of characters. +A question mark matches any single character. +A left bracket +.Pq Dq \&[ +introduces a character class. +The end of the character class is indicated by a +.Pq Dq \&] ; +if the +.Dq \&] +is missing then the +.Dq \&[ +matches a +.Dq \&[ +rather than introducing a character class. +A character class matches any of the characters between the square brackets. +A range of characters may be specified using a minus sign. +The character class may be complemented +by making an exclamation point the first character of the character class. +.Pp +To include a +.Dq \&] +in a character class, make it the first character listed (after the +.Dq \&! , +if any). +To include a minus sign, make it the first or last character listed. +.Ss Builtins +This section lists the builtin commands which are builtin because they +need to perform some operation that can't be performed by a separate +process. +In addition to these, there are several other commands that may +be builtin for efficiency (e.g. +.Xr printf 1 , +.Xr echo 1 , +.Xr test 1 , +etc). +.Bl -tag -width 5n +.It : +.It true +A null command that returns a 0 (true) exit value. +.It \&. file +The commands in the specified file are read and executed by the shell. +.It alias Op Ar name Ns Op Ar "=string ..." +If +.Ar name=string +is specified, the shell defines the alias +.Ar name +with value +.Ar string . +If just +.Ar name +is specified, the value of the alias +.Ar name +is printed. +With no arguments, the +.Ic alias +builtin prints the +names and values of all defined aliases (see +.Ic unalias ) . +.It bg [ Ar job ] ... +Continue the specified jobs (or the current job if no +jobs are given) in the background. +.It Xo command +.Op Fl p +.Op Fl v +.Op Fl V +.Ar command +.Op Ar arg ... +.Xc +Execute the specified command but ignore shell functions when searching +for it. +(This is useful when you +have a shell function with the same name as a builtin command.) +.Bl -tag -width 5n +.It Fl p +search for command using a +.Ev PATH +that guarantees to find all the standard utilities. +.It Fl V +Do not execute the command but +search for the command and print the resolution of the +command search. +This is the same as the type builtin. +.It Fl v +Do not execute the command but +search for the command and print the absolute pathname +of utilities, the name for builtins or the expansion of aliases. +.El +.It cd Ar - +.It Xo cd Op Fl LP +.Op Ar directory +.Xc +Switch to the specified directory (default +.Ev HOME ) . +If an entry for +.Ev CDPATH +appears in the environment of the +.Ic cd +command or the shell variable +.Ev CDPATH +is set and the directory name does not begin with a slash, then the +directories listed in +.Ev CDPATH +will be searched for the specified directory. +The format of +.Ev CDPATH +is the same as that of +.Ev PATH . +If a single dash is specified as the argument, it will be replaced by the +value of +.Ev OLDPWD . +The +.Ic cd +command will print out the name of the +directory that it actually switched to if this is different from the name +that the user gave. +These may be different either because the +.Ev CDPATH +mechanism was used or because the argument is a single dash. +The +.Fl P +option causes the physical directory structure to be used, that is, all +symbolic links are resolved to their respective values. The +.Fl L +option turns off the effect of any preceding +.Fl P +options. +.It Xo echo Op Fl n +.Ar args... +.Xc +Print the arguments on the standard output, separated by spaces. +Unless the +.Fl n +option is present, a newline is output following the arguments. +.Pp +If any of the following sequences of characters is encountered during +output, the sequence is not output. Instead, the specified action is +performed: +.Bl -tag -width indent +.It Li \eb +A backspace character is output. +.It Li \ec +Subsequent output is suppressed. This is normally used at the end of the +last argument to suppress the trailing newline that +.Ic echo +would otherwise output. +.It Li \ef +Output a form feed. +.It Li \en +Output a newline character. +.It Li \er +Output a carriage return. +.It Li \et +Output a (horizontal) tab character. +.It Li \ev +Output a vertical tab. +.It Li \e0 Ns Ar digits +Output the character whose value is given by zero to three octal digits. +If there are zero digits, a nul character is output. +.It Li \e\e +Output a backslash. +.El +.Pp +All other backslash sequences elicit undefined behaviour. +.It eval Ar string ... +Concatenate all the arguments with spaces. +Then re-parse and execute the command. +.It exec Op Ar command arg ... +Unless command is omitted, the shell process is replaced with the +specified program (which must be a real program, not a shell builtin or +function). +Any redirections on the +.Ic exec +command are marked as permanent, so that they are not undone when the +.Ic exec +command finishes. +.It exit Op Ar exitstatus +Terminate the shell process. +If +.Ar exitstatus +is given it is used as the exit status of the shell; otherwise the +exit status of the preceding command is used. +.It export Ar name ... +.It export Fl p +The specified names are exported so that they will appear in the +environment of subsequent commands. +The only way to un-export a variable is to unset it. +The shell allows the value of a variable to be set at the +same time it is exported by writing +.Pp +.Dl export name=value +.Pp +With no arguments the export command lists the names of all exported variables. +With the +.Fl p +option specified the output will be formatted suitably for non-interactive use. +.It Xo fc Op Fl e Ar editor +.Op Ar first Op Ar last +.Xc +.It Xo fc Fl l +.Op Fl nr +.Op Ar first Op Ar last +.Xc +.It Xo fc Fl s Op Ar old=new +.Op Ar first +.Xc +The +.Ic fc +builtin lists, or edits and re-executes, commands previously entered +to an interactive shell. +.Bl -tag -width 5n +.It Fl e No editor +Use the editor named by editor to edit the commands. +The editor string is a command name, subject to search via the +.Ev PATH +variable. +The value in the +.Ev FCEDIT +variable is used as a default when +.Fl e +is not specified. +If +.Ev FCEDIT +is null or unset, the value of the +.Ev EDITOR +variable is used. +If +.Ev EDITOR +is null or unset, +.Xr ed 1 +is used as the editor. +.It Fl l No (ell) +List the commands rather than invoking an editor on them. +The commands are written in the sequence indicated by +the first and last operands, as affected by +.Fl r , +with each command preceded by the command number. +.It Fl n +Suppress command numbers when listing with -l. +.It Fl r +Reverse the order of the commands listed (with +.Fl l ) +or edited (with neither +.Fl l +nor +.Fl s ) . +.It Fl s +Re-execute the command without invoking an editor. +.It first +.It last +Select the commands to list or edit. +The number of previous commands that +can be accessed are determined by the value of the +.Ev HISTSIZE +variable. +The value of first or last or both are one of the following: +.Bl -tag -width 5n +.It [+]number +A positive number representing a command number; command numbers can be +displayed with the +.Fl l +option. +.It Fl number +A negative decimal number representing the command that was executed +number of commands previously. +For example, \-1 is the immediately previous command. +.El +.It string +A string indicating the most recently entered command that begins with +that string. +If the old=new operand is not also specified with +.Fl s , +the string form of the first operand cannot contain an embedded equal sign. +.El +.Pp +The following environment variables affect the execution of fc: +.Bl -tag -width HISTSIZE +.It Ev FCEDIT +Name of the editor to use. +.It Ev HISTSIZE +The number of previous commands that are accessible. +.El +.It fg Op Ar job +Move the specified job or the current job to the foreground. +.It getopts Ar optstring var +The +.Tn POSIX +.Ic getopts +command, not to be confused with the +.Em Bell Labs +-derived +.Xr getopt 1 . +.Pp +The first argument should be a series of letters, each of which may be +optionally followed by a colon to indicate that the option requires an +argument. +The variable specified is set to the parsed option. +.Pp +The +.Ic getopts +command deprecates the older +.Xr getopt 1 +utility due to its handling of arguments containing whitespace. +.Pp +The +.Ic getopts +builtin may be used to obtain options and their arguments +from a list of parameters. +When invoked, +.Ic getopts +places the value of the next option from the option string in the list in +the shell variable specified by +.Va var +and its index in the shell variable +.Ev OPTIND . +When the shell is invoked, +.Ev OPTIND +is initialized to 1. +For each option that requires an argument, the +.Ic getopts +builtin will place it in the shell variable +.Ev OPTARG . +If an option is not allowed for in the +.Va optstring , +then +.Ev OPTARG +will be unset. +.Pp +.Va optstring +is a string of recognized option letters (see +.Xr getopt 3 ) . +If a letter is followed by a colon, the option is expected to have an +argument which may or may not be separated from it by white space. +If an option character is not found where expected, +.Ic getopts +will set the variable +.Va var +to a +.Dq \&? ; +.Ic getopts +will then unset +.Ev OPTARG +and write output to standard error. +By specifying a colon as the first character of +.Va optstring +all errors will be ignored. +.Pp +After the last option +.Ic getopts +will return a non-zero value and set +.Va var +to +.Dq \&? . +.Pp +The following code fragment shows how one might process the arguments +for a command that can take the options +.Op a +and +.Op b , +and the option +.Op c , +which requires an argument. +.Pp +.Bd -literal -offset indent +while getopts abc: f +do + case $f in + a | b) flag=$f;; + c) carg=$OPTARG;; + \\?) echo $USAGE; exit 1;; + esac +done +shift `expr $OPTIND - 1` +.Ed +.Pp +This code will accept any of the following as equivalent: +.Pp +.Bd -literal -offset indent +cmd \-acarg file file +cmd \-a \-c arg file file +cmd \-carg -a file file +cmd \-a \-carg \-\- file file +.Ed +.It hash Fl rv Ar command ... +The shell maintains a hash table which remembers the +locations of commands. +With no arguments whatsoever, +the +.Ic hash +command prints out the contents of this table. +Entries which have not been looked at since the last +.Ic cd +command are marked with an asterisk; it is possible for these entries +to be invalid. +.Pp +With arguments, the +.Ic hash +command removes the specified commands from the hash table (unless +they are functions) and then locates them. +With the +.Fl v +option, hash prints the locations of the commands as it finds them. +The +.Fl r +option causes the hash command to delete all the entries in the hash table +except for functions. +.It pwd Op Fl LP +builtin command remembers what the current directory +is rather than recomputing it each time. +This makes it faster. +However, if the current directory is renamed, the builtin version of +.Ic pwd +will continue to print the old name for the directory. +The +.Fl P +option causes the physical value of the current working directory to be shown, +that is, all symbolic links are resolved to their respective values. The +.Fl L +option turns off the effect of any preceding +.Fl P +options. +.It Xo read Op Fl p Ar prompt +.Op Fl r +.Ar variable +.Op Ar ... +.Xc +The prompt is printed if the +.Fl p +option is specified and the standard input is a terminal. +Then a line is read from the standard input. +The trailing newline is deleted from the +line and the line is split as described in the section on word splitting +above, and the pieces are assigned to the variables in order. +At least one variable must be specified. +If there are more pieces than variables, the remaining pieces +(along with the characters in +.Ev IFS +that separated them) are assigned to the last variable. +If there are more variables than pieces, +the remaining variables are assigned the null string. +The +.Ic read +builtin will indicate success unless EOF is encountered on input, in +which case failure is returned. +.Pp +By default, unless the +.Fl r +option is specified, the backslash +.Dq \e +acts as an escape character, causing the following character to be treated +literally. +If a backslash is followed by a newline, the backslash and the +newline will be deleted. +.It readonly Ar name ... +.It readonly Fl p +The specified names are marked as read only, so that they cannot be +subsequently modified or unset. +The shell allows the value of a variable +to be set at the same time it is marked read only by writing +.Pp +.Dl readonly name=value +.Pp +With no arguments the readonly command lists the names of all read only +variables. +With the +.Fl p +option specified the output will be formatted suitably for non-interactive use. +.Pp +.It Xo printf Ar format +.Op Ar arguments ... +.Xc +.Ic printf +formats and prints its arguments, after the first, under control +of the +.Ar format . +The +.Ar format +is a character string which contains three types of objects: plain characters, +which are simply copied to standard output, character escape sequences which +are converted and copied to the standard output, and format specifications, +each of which causes printing of the next successive +.Ar argument . +.Pp +The +.Ar arguments +after the first are treated as strings if the corresponding format is +either +.Cm b , +.Cm c +or +.Cm s ; +otherwise it is evaluated as a C constant, with the following extensions: +.Pp +.Bl -bullet -offset indent -compact +.It +A leading plus or minus sign is allowed. +.It +If the leading character is a single or double quote, the value is the +.Tn ASCII +code of the next character. +.El +.Pp +The format string is reused as often as necessary to satisfy the +.Ar arguments . +Any extra format specifications are evaluated with zero or the null +string. +.Pp +Character escape sequences are in backslash notation as defined in +.St -ansiC . +The characters and their meanings are as follows: +.Bl -tag -width Ds -offset indent +.It Cm \ea +Write a \*[Lt]bell\*[Gt] character. +.It Cm \eb +Write a \*[Lt]backspace\*[Gt] character. +.It Cm \ef +Write a \*[Lt]form-feed\*[Gt] character. +.It Cm \en +Write a \*[Lt]new-line\*[Gt] character. +.It Cm \er +Write a \*[Lt]carriage return\*[Gt] character. +.It Cm \et +Write a \*[Lt]tab\*[Gt] character. +.It Cm \ev +Write a \*[Lt]vertical tab\*[Gt] character. +.It Cm \e\e +Write a backslash character. +.It Cm \e Ns Ar num +Write an 8\-bit character whose +.Tn ASCII +value is the 1\-, 2\-, or 3\-digit +octal number +.Ar num . +.El +.Pp +Each format specification is introduced by the percent character +(``%''). +The remainder of the format specification includes, +in the following order: +.Bl -tag -width Ds +.It "Zero or more of the following flags:" +.Bl -tag -width Ds +.It Cm # +A `#' character +specifying that the value should be printed in an ``alternative form''. +For +.Cm b , +.Cm c , +.Cm d , +and +.Cm s +formats, this option has no effect. +For the +.Cm o +format the precision of the number is increased to force the first +character of the output string to a zero. +For the +.Cm x +.Pq Cm X +format, a non-zero result has the string +.Li 0x +.Pq Li 0X +prepended to it. +For +.Cm e , +.Cm E , +.Cm f , +.Cm g , +and +.Cm G +formats, the result will always contain a decimal point, even if no +digits follow the point (normally, a decimal point only appears in the +results of those formats if a digit follows the decimal point). +For +.Cm g +and +.Cm G +formats, trailing zeros are not removed from the result as they +would otherwise be. +.It Cm \&\- +A minus sign `\-' which specifies +.Em left adjustment +of the output in the indicated field; +.It Cm \&+ +A `+' character specifying that there should always be +a sign placed before the number when using signed formats. +.It Sq \&\ \& +A space specifying that a blank should be left before a positive number +for a signed format. +A `+' overrides a space if both are used; +.It Cm \&0 +A zero `0' character indicating that zero-padding should be used +rather than blank-padding. +A `\-' overrides a `0' if both are used; +.El +.It "Field Width:" +An optional digit string specifying a +.Em field width ; +if the output string has fewer characters than the field width it will +be blank-padded on the left (or right, if the left-adjustment indicator +has been given) to make up the field width (note that a leading zero +is a flag, but an embedded zero is part of a field width); +.It Precision : +An optional period, +.Sq Cm \&.\& , +followed by an optional digit string giving a +.Em precision +which specifies the number of digits to appear after the decimal point, +for +.Cm e +and +.Cm f +formats, or the maximum number of bytes to be printed +from a string +.Sm off +.Pf ( Cm b +.Sm on +and +.Cm s +formats); if the digit string is missing, the precision is treated +as zero; +.It Format : +A character which indicates the type of format to use (one of +.Cm diouxXfwEgGbcs ) . +.El +.Pp +A field width or precision may be +.Sq Cm \&* +instead of a digit string. +In this case an +.Ar argument +supplies the field width or precision. +.Pp +The format characters and their meanings are: +.Bl -tag -width Fl +.It Cm diouXx +The +.Ar argument +is printed as a signed decimal (d or i), unsigned octal, unsigned decimal, +or unsigned hexadecimal (X or x), respectively. +.It Cm f +The +.Ar argument +is printed in the style +.Sm off +.Pf [\-]ddd Cm \&. No ddd +.Sm on +where the number of d's +after the decimal point is equal to the precision specification for +the argument. +If the precision is missing, 6 digits are given; if the precision +is explicitly 0, no digits and no decimal point are printed. +.It Cm eE +The +.Ar argument +is printed in the style +.Sm off +.Pf [\-]d Cm \&. No ddd Cm e No \*(Pmdd +.Sm on +where there +is one digit before the decimal point and the number after is equal to +the precision specification for the argument; when the precision is +missing, 6 digits are produced. +An upper-case E is used for an `E' format. +.It Cm gG +The +.Ar argument +is printed in style +.Cm f +or in style +.Cm e +.Pq Cm E +whichever gives full precision in minimum space. +.It Cm b +Characters from the string +.Ar argument +are printed with backslash-escape sequences expanded. +.br +The following additional backslash-escape sequences are supported: +.Bl -tag -width Ds +.It Cm \ec +Causes +.Nm +to ignore any remaining characters in the string operand containing it, +any remaining string operands, and any additional characters in +the format operand. +.It Cm \e0 Ns Ar num +Write an 8\-bit character whose +.Tn ASCII +value is the 1\-, 2\-, or 3\-digit +octal number +.Ar num . +.El +.It Cm c +The first character of +.Ar argument +is printed. +.It Cm s +Characters from the string +.Ar argument +are printed until the end is reached or until the number of bytes +indicated by the precision specification is reached; if the +precision is omitted, all characters in the string are printed. +.It Cm \&% +Print a `%'; no argument is used. +.El +.Pp +In no case does a non-existent or small field width cause truncation of +a field; padding takes place only if the specified field width exceeds +the actual width. +.It Xo set +.Oo { +.Fl options | Cm +options | Cm -- } +.Oc Ar arg ... +.Xc +The +.Ic set +command performs three different functions. +.Pp +With no arguments, it lists the values of all shell variables. +.Pp +If options are given, it sets the specified option +flags, or clears them as described in the section called +.Sx Argument List Processing . +As a special case, if the option is -o or +o and no argument is +supplied, the shell prints the settings of all its options. If the +option is -o, the settings are printed in a human-readable format; if +the option is +o, the settings are printed in a format suitable for +reinput to the shell to affect the same option settings. +.Pp +The third use of the set command is to set the values of the shell's +positional parameters to the specified args. +To change the positional +parameters without changing any options, use +.Dq -- +as the first argument to set. +If no args are present, the set command +will clear all the positional parameters (equivalent to executing +.Dq shift $# . ) +.It shift Op Ar n +Shift the positional parameters n times. +A +.Ic shift +sets the value of +.Va $1 +to the value of +.Va $2 , +the value of +.Va $2 +to the value of +.Va $3 , +and so on, decreasing +the value of +.Va $# +by one. +If n is greater than the number of positional parameters, +.Ic shift +will issue an error message, and exit with return status 2. +.It test Ar expression +.It \&[ Ar expression Cm \&] +The +.Ic test +utility evaluates the expression and, if it evaluates +to true, returns a zero (true) exit status; otherwise +it returns 1 (false). +If there is no expression, test also +returns 1 (false). +.Pp +All operators and flags are separate arguments to the +.Ic test +utility. +.Pp +The following primaries are used to construct expression: +.Bl -tag -width Ar +.It Fl b Ar file +True if +.Ar file +exists and is a block special +file. +.It Fl c Ar file +True if +.Ar file +exists and is a character +special file. +.It Fl d Ar file +True if +.Ar file +exists and is a directory. +.It Fl e Ar file +True if +.Ar file +exists (regardless of type). +.It Fl f Ar file +True if +.Ar file +exists and is a regular file. +.It Fl g Ar file +True if +.Ar file +exists and its set group ID flag +is set. +.It Fl h Ar file +True if +.Ar file +exists and is a symbolic link. +.It Fl k Ar file +True if +.Ar file +exists and its sticky bit is set. +.It Fl n Ar string +True if the length of +.Ar string +is nonzero. +.It Fl p Ar file +True if +.Ar file +is a named pipe +.Po Tn FIFO Pc . +.It Fl r Ar file +True if +.Ar file +exists and is readable. +.It Fl s Ar file +True if +.Ar file +exists and has a size greater +than zero. +.It Fl t Ar file_descriptor +True if the file whose file descriptor number +is +.Ar file_descriptor +is open and is associated with a terminal. +.It Fl u Ar file +True if +.Ar file +exists and its set user ID flag +is set. +.It Fl w Ar file +True if +.Ar file +exists and is writable. +True +indicates only that the write flag is on. +The file is not writable on a read-only file +system even if this test indicates true. +.It Fl x Ar file +True if +.Ar file +exists and is executable. +True +indicates only that the execute flag is on. +If +.Ar file +is a directory, true indicates that +.Ar file +can be searched. +.It Fl z Ar string +True if the length of +.Ar string +is zero. +.It Fl L Ar file +True if +.Ar file +exists and is a symbolic link. +This operator is retained for compatibility with previous versions of +this program. +Do not rely on its existence; use +.Fl h +instead. +.It Fl O Ar file +True if +.Ar file +exists and its owner matches the effective user id of this process. +.It Fl G Ar file +True if +.Ar file +exists and its group matches the effective group id of this process. +.It Fl S Ar file +True if +.Ar file +exists and is a socket. +.It Ar file1 Fl nt Ar file2 +True if +.Ar file1 +and +.Ar file2 +exist and +.Ar file1 +is newer than +.Ar file2 . +.It Ar file1 Fl ot Ar file2 +True if +.Ar file1 +and +.Ar file2 +exist and +.Ar file1 +is older than +.Ar file2 . +.It Ar file1 Fl ef Ar file2 +True if +.Ar file1 +and +.Ar file2 +exist and refer to the same file. +.It Ar string +True if +.Ar string +is not the null +string. +.It Ar \&s\&1 Cm \&= Ar \&s\&2 +True if the strings +.Ar \&s\&1 +and +.Ar \&s\&2 +are identical. +.It Ar \&s\&1 Cm \&!= Ar \&s\&2 +True if the strings +.Ar \&s\&1 +and +.Ar \&s\&2 +are not identical. +.It Ar \&s\&1 Cm \&\*[Lt] Ar \&s\&2 +True if string +.Ar \&s\&1 +comes before +.Ar \&s\&2 +based on the ASCII value of their characters. +.It Ar \&s\&1 Cm \&\*[Gt] Ar \&s\&2 +True if string +.Ar \&s\&1 +comes after +.Ar \&s\&2 +based on the ASCII value of their characters. +.It Ar \&n\&1 Fl \&eq Ar \&n\&2 +True if the integers +.Ar \&n\&1 +and +.Ar \&n\&2 +are algebraically +equal. +.It Ar \&n\&1 Fl \&ne Ar \&n\&2 +True if the integers +.Ar \&n\&1 +and +.Ar \&n\&2 +are not +algebraically equal. +.It Ar \&n\&1 Fl \> Ar \&n\&2 +True if the integer +.Ar \&n\&1 +is algebraically +greater than the integer +.Ar \&n\&2 . +.It Ar \&n\&1 Fl \&ge Ar \&n\&2 +True if the integer +.Ar \&n\&1 +is algebraically +greater than or equal to the integer +.Ar \&n\&2 . +.It Ar \&n\&1 Fl \< Ar \&n\&2 +True if the integer +.Ar \&n\&1 +is algebraically less +than the integer +.Ar \&n\&2 . +.It Ar \&n\&1 Fl \&le Ar \&n\&2 +True if the integer +.Ar \&n\&1 +is algebraically less +than or equal to the integer +.Ar \&n\&2 . +.El +.Pp +These primaries can be combined with the following operators: +.Bl -tag -width Ar +.It Cm \&! Ar expression +True if +.Ar expression +is false. +.It Ar expression1 Fl a Ar expression2 +True if both +.Ar expression1 +and +.Ar expression2 +are true. +.It Ar expression1 Fl o Ar expression2 +True if either +.Ar expression1 +or +.Ar expression2 +are true. +.It Cm \&( Ns Ar expression Ns Cm \&) +True if expression is true. +.El +.Pp +The +.Fl a +operator has higher precedence than the +.Fl o +operator. +.It times +Print the accumulated user and system times for the shell and for processes +run from the shell. The return status is 0. +.It Xo trap +.Op Ar action Ar signal ... +.Xc +Cause the shell to parse and execute action when any of the specified +signals are received. +The signals are specified by signal number or as the name of the signal. +If +.Ar signal +is +.Li 0 +or +.Li EXIT , +the action is executed when the shell exits. +.Ar action +may be empty +.Li ( "''" ) , +which causes the specified signals to be ignored. +With +.Ar action +omitted or set to `-' the specified signals are set to their default action. +When the shell forks off a subshell, it resets trapped (but not ignored) +signals to the default action. +The +.Ic trap +command has no effect on signals that were +ignored on entry to the shell. +.Ic trap +without any arguments cause it to write a list of signals and their +associated action to the standard output in a format that is suitable +as an input to the shell that achieves the same trapping results. +.Pp +Examples: +.Pp +.Dl trap +.Pp +List trapped signals and their corresponding action +.Pp +.Dl trap '' INT QUIT tstp 30 +.Pp +Ignore signals INT QUIT TSTP USR1 +.Pp +.Dl trap date INT +.Pp +Print date upon receiving signal INT +.It type Op Ar name ... +Interpret each name as a command and print the resolution of the command +search. +Possible resolutions are: +shell keyword, alias, shell builtin, +command, tracked alias and not found. +For aliases the alias expansion is +printed; for commands and tracked aliases the complete pathname of the +command is printed. +.It ulimit Xo +.Op Fl H \*(Ba Fl S +.Op Fl a \*(Ba Fl tfdscmlpnv Op Ar value +.Xc +Inquire about or set the hard or soft limits on processes or set new +limits. +The choice between hard limit (which no process is allowed to +violate, and which may not be raised once it has been lowered) and soft +limit (which causes processes to be signaled but not necessarily killed, +and which may be raised) is made with these flags: +.Bl -tag -width Fl +.It Fl H +set or inquire about hard limits +.It Fl S +set or inquire about soft limits. +If neither +.Fl H +nor +.Fl S +is specified, the soft limit is displayed or both limits are set. +If both are specified, the last one wins. +.El +.Pp +The limit to be interrogated or set, then, is chosen by specifying +any one of these flags: +.Bl -tag -width Fl +.It Fl a +show all the current limits +.It Fl t +show or set the limit on CPU time (in seconds) +.It Fl f +show or set the limit on the largest file that can be created +(in 512-byte blocks) +.It Fl d +show or set the limit on the data segment size of a process (in kilobytes) +.It Fl s +show or set the limit on the stack size of a process (in kilobytes) +.It Fl c +show or set the limit on the largest core dump size that can be produced +(in 512-byte blocks) +.It Fl m +show or set the limit on the total physical memory that can be +in use by a process (in kilobytes) +.It Fl l +show or set the limit on how much memory a process can lock with +.Xr mlock 2 +(in kilobytes) +.It Fl p +show or set the limit on the number of processes this user can +have at one time +.It Fl n +show or set the limit on the number files a process can have open at once +.It Fl v +show or set the limit on the total virtual memory that can be +in use by a process (in kilobytes) +.It Fl r +show or set the limit on the real-time scheduling priority of a process +.El +.Pp +If none of these is specified, it is the limit on file size that is shown +or set. +If value is specified, the limit is set to that number; otherwise +the current limit is displayed. +.Pp +Limits of an arbitrary process can be displayed or set using the +.Xr sysctl 8 +utility. +.Pp +.It umask Op Ar mask +Set the value of umask (see +.Xr umask 2 ) +to the specified octal value. +If the argument is omitted, the umask value is printed. +.It unalias Xo +.Op Fl a +.Op Ar name +.Xc +If +.Ar name +is specified, the shell removes that alias. +If +.Fl a +is specified, all aliases are removed. +.It unset Xo +.Op Fl fv +.Ar name ... +.Xc +The specified variables and functions are unset and unexported. +If +.Fl f +or +.Fl v +is specified, the corresponding function or variable is unset, respectively. +If a given name corresponds to both a variable and a function, and no +options are given, only the variable is unset. +.It wait Op Ar job +Wait for the specified job to complete and return the exit status of the +last process in the job. +If the argument is omitted, wait for all jobs to +complete and return an exit status of zero. +.El +.Ss Command Line Editing +When +.Nm +is being used interactively from a terminal, the current command +and the command history (see +.Ic fc +in +.Sx Builtins ) +can be edited using vi-mode command-line editing. +This mode uses commands, described below, +similar to a subset of those described in the vi man page. +The command +.Ql set -o vi +enables vi-mode editing and places sh into vi insert mode. +With vi-mode +enabled, sh can be switched between insert mode and command mode. +It is similar to vi: typing +.Aq ESC +enters vi command mode. +Hitting +.Aq return +while in command mode will pass the line to the shell. +.Sh EXIT STATUS +Errors that are detected by the shell, such as a syntax error, will cause the +shell to exit with a non-zero exit status. +If the shell is not an +interactive shell, the execution of the shell file will be aborted. +Otherwise +the shell will return the exit status of the last command executed, or +if the exit builtin is used with a numeric argument, it will return the +argument. +.Sh ENVIRONMENT +.Bl -tag -width MAILCHECK +.It Ev HOME +Set automatically by +.Xr login 1 +from the user's login directory in the password file +.Pq Xr passwd 4 . +This environment variable also functions as the default argument for the +cd builtin. +.It Ev PATH +The default search path for executables. +See the above section +.Sx Path Search . +.It Ev CDPATH +The search path used with the cd builtin. +.It Ev MAIL +The name of a mail file, that will be checked for the arrival of new mail. +Overridden by +.Ev MAILPATH . +.It Ev MAILCHECK +The frequency in seconds that the shell checks for the arrival of mail +in the files specified by the +.Ev MAILPATH +or the +.Ev MAIL +file. +If set to 0, the check will occur at each prompt. +.It Ev MAILPATH +A colon +.Dq \&: +separated list of file names, for the shell to check for incoming mail. +This environment setting overrides the +.Ev MAIL +setting. +There is a maximum of 10 mailboxes that can be monitored at once. +.It Ev PS1 +The primary prompt string, which defaults to +.Dq $\ , +unless you are the superuser, in which case it defaults to +.Dq #\ . +.It Ev PS2 +The secondary prompt string, which defaults to +.Dq \*[Gt]\ . +.It Ev PS4 +Output before each line when execution trace (set -x) is enabled, +defaults to +.Dq +\ . +.It Ev RPS1 +The primary right prompt string. +.It Ev RPS2 +The secondary right prompt string. +.It Ev IFS +Input Field Separators. +This is normally set to +.Aq space , +.Aq tab , +and +.Aq newline . +See the +.Sx White Space Splitting +section for more details. +.It Ev TERM +The default terminal setting for the shell. +This is inherited by +children of the shell, and is used in the history editing modes. +.It Ev HISTSIZE +The number of lines in the history buffer for the shell. +.It Ev PWD +The logical value of the current working directory. This is set by the +.Ic cd +command. +.It Ev OLDPWD +The previous logical value of the current working directory. This is set by +the +.Ic cd +command. +.It Ev PPID +The process ID of the parent process of the shell. +.El +.Sh FILES +.Bl -item -width HOMEprofilexxxx +.It +.Pa $HOME/.profile +.It +.Pa /etc/profile +.El +.Sh SEE ALSO +.Xr csh 1 , +.Xr echo 1 , +.Xr getopt 1 , +.Xr ksh 1 , +.Xr login 1 , +.Xr printf 1 , +.Xr test 1 , +.Xr getopt 3 , +.Xr passwd 5 , +.\" .Xr profile 4 , +.Xr environ 7 , +.Xr sysctl 8 +.Sh HISTORY +.Nm +is a POSIX-compliant implementation of /bin/sh that aims to be as small as +possible. +.Nm +is a direct descendant of the NetBSD version of ash (the Almquist SHell), +ported to Linux in early 1997. +It was renamed to +.Nm +in 2002. +.Sh BUGS +Setuid shell scripts should be avoided at all costs, as they are a +significant security risk. +.Pp +PS1, PS2, and PS4 should be subject to parameter expansion before +being displayed. diff --git a/bin/dash/src/error.c b/bin/dash/src/error.c new file mode 100644 index 00000000..728ff885 --- /dev/null +++ b/bin/dash/src/error.c @@ -0,0 +1,238 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * Errors and exceptions. + */ + +#include <signal.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <stdio.h> +#include <string.h> + +#include "jobs.h" +#include "shell.h" +#include "main.h" +#include "options.h" +#include "output.h" +#include "error.h" +#include "show.h" +#include "eval.h" +#include "parser.h" +#include "system.h" + + +/* + * Code to handle exceptions in C. + */ + +struct jmploc *handler; +int exception; +int suppressint; +volatile sig_atomic_t intpending; +int errlinno; + + +static void exverror(int, const char *, va_list) + __attribute__((__noreturn__)); + +/* + * Called to raise an exception. Since C doesn't include exceptions, we + * just do a longjmp to the exception handler. The type of exception is + * stored in the global variable "exception". + */ + +void +exraise(int e) +{ +#ifdef DEBUG + if (handler == NULL) + abort(); +#endif + + if (vforked) + _exit(exitstatus); + + INTOFF; + + exception = e; + longjmp(handler->loc, 1); +} + + +/* + * Called from trap.c when a SIGINT is received. (If the user specifies + * that SIGINT is to be trapped or ignored using the trap builtin, then + * this routine is not called.) Suppressint is nonzero when interrupts + * are held using the INTOFF macro. (The test for iflag is just + * defensive programming.) + */ + +void +onint(void) { + + intpending = 0; + sigclearmask(); + if (!(rootshell && iflag)) { + signal(SIGINT, SIG_DFL); + raise(SIGINT); + } + exitstatus = SIGINT + 128; + exraise(EXINT); + /* NOTREACHED */ +} + +static void +exvwarning2(const char *msg, va_list ap) +{ + struct output *errs; + const char *name; + const char *fmt; + + errs = out2; + name = arg0 ? arg0 : "sh"; + if (!commandname) + fmt = "%s: %d: "; + else + fmt = "%s: %d: %s: "; + outfmt(errs, fmt, name, errlinno, commandname); + doformat(errs, msg, ap); +#if FLUSHERR + outc('\n', errs); +#else + outcslow('\n', errs); +#endif +} + +#define exvwarning(a, b, c) exvwarning2(b, c) + +/* + * Exverror is called to raise the error exception. If the second argument + * is not NULL then error prints an error message using printf style + * formatting. It then raises the error exception. + */ +static void +exverror(int cond, const char *msg, va_list ap) +{ +#ifdef DEBUG + if (msg) { + va_list aq; + TRACE(("exverror(%d, \"", cond)); + va_copy(aq, ap); + TRACEV((msg, aq)); + va_end(aq); + TRACE(("\") pid=%d\n", getpid())); + } else + TRACE(("exverror(%d, NULL) pid=%d\n", cond, getpid())); + if (msg) +#endif + exvwarning(-1, msg, ap); + + flushall(); + exraise(cond); + /* NOTREACHED */ +} + + +void +sh_error(const char *msg, ...) +{ + va_list ap; + + exitstatus = 2; + + va_start(ap, msg); + exverror(EXERROR, msg, ap); + /* NOTREACHED */ + va_end(ap); +} + + +void +exerror(int cond, const char *msg, ...) +{ + va_list ap; + + va_start(ap, msg); + exverror(cond, msg, ap); + /* NOTREACHED */ + va_end(ap); +} + +/* + * error/warning routines for external builtins + */ + +void +sh_warnx(const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + exvwarning(-1, fmt, ap); + va_end(ap); +} + + +/* + * Return a string describing an error. The returned string may be a + * pointer to a static buffer that will be overwritten on the next call. + * Action describes the operation that got the error. + */ + +const char * +errmsg(int e, int action) +{ + if (e != ENOENT && e != ENOTDIR) + return strerror(e); + + if (action & E_OPEN) + return "No such file"; + else if (action & E_CREAT) + return "Directory nonexistent"; + else + return "not found"; +} + + +#ifdef REALLY_SMALL +void +__inton() { + if (--suppressint == 0 && intpending) { + onint(); + } +} +#endif diff --git a/bin/dash/src/error.h b/bin/dash/src/error.h new file mode 100644 index 00000000..94e30a27 --- /dev/null +++ b/bin/dash/src/error.h @@ -0,0 +1,129 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)error.h 8.2 (Berkeley) 5/4/95 + */ + +#include <setjmp.h> +#include <signal.h> + +/* + * Types of operations (passed to the errmsg routine). + */ + +#define E_OPEN 01 /* opening a file */ +#define E_CREAT 02 /* creating a file */ +#define E_EXEC 04 /* executing a program */ + + +/* + * We enclose jmp_buf in a structure so that we can declare pointers to + * jump locations. The global variable handler contains the location to + * jump to when an exception occurs, and the global variable exception + * contains a code identifying the exeception. To implement nested + * exception handlers, the user should save the value of handler on entry + * to an inner scope, set handler to point to a jmploc structure for the + * inner scope, and restore handler on exit from the scope. + */ + +struct jmploc { + jmp_buf loc; +}; + +extern struct jmploc *handler; +extern int exception; + +/* exceptions */ +#define EXINT 0 /* SIGINT received */ +#define EXERROR 1 /* a generic error */ +#define EXEND 3 /* exit the shell */ +#define EXEXIT 4 /* exit the shell via exitcmd */ + + +/* + * These macros allow the user to suspend the handling of interrupt signals + * over a period of time. This is similar to SIGHOLD to or sigblock, but + * much more efficient and portable. (But hacking the kernel is so much + * more fun than worrying about efficiency and portability. :-)) + */ + +extern int suppressint; +extern volatile sig_atomic_t intpending; + +#define barrier() ({ __asm__ __volatile__ ("": : :"memory"); }) +#define INTOFF \ + ({ \ + suppressint++; \ + barrier(); \ + 0; \ + }) +#ifdef REALLY_SMALL +void __inton(void); +#define INTON __inton() +#else +#define INTON \ + ({ \ + barrier(); \ + if (--suppressint == 0 && intpending) onint(); \ + 0; \ + }) +#endif +#define FORCEINTON \ + ({ \ + barrier(); \ + suppressint = 0; \ + if (intpending) onint(); \ + 0; \ + }) +#define SAVEINT(v) ((v) = suppressint) +#define RESTOREINT(v) \ + ({ \ + barrier(); \ + if ((suppressint = (v)) == 0 && intpending) onint(); \ + 0; \ + }) +#define CLEAR_PENDING_INT intpending = 0 +#define int_pending() intpending + +void exraise(int) __attribute__((__noreturn__)); +#ifdef USE_NORETURN +void onint(void) __attribute__((__noreturn__)); +#else +void onint(void); +#endif +extern int errlinno; +void sh_error(const char *, ...) __attribute__((__noreturn__)); +void exerror(int, const char *, ...) __attribute__((__noreturn__)); +const char *errmsg(int, int); + +void sh_warnx(const char *, ...); diff --git a/bin/dash/src/eval.c b/bin/dash/src/eval.c new file mode 100644 index 00000000..1b5d61dc --- /dev/null +++ b/bin/dash/src/eval.c @@ -0,0 +1,1147 @@ +/*- + * Copyright (c) 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <stdlib.h> +#include <signal.h> +#include <unistd.h> +#include <sys/types.h> + +/* + * Evaluate a command. + */ + +#include "init.h" +#include "main.h" +#include "shell.h" +#include "nodes.h" +#include "syntax.h" +#include "expand.h" +#include "parser.h" +#include "jobs.h" +#include "eval.h" +#include "builtins.h" +#include "options.h" +#include "exec.h" +#include "redir.h" +#include "input.h" +#include "output.h" +#include "trap.h" +#include "var.h" +#include "memalloc.h" +#include "error.h" +#include "show.h" +#include "mystring.h" +#ifndef SMALL +#include "myhistedit.h" +#endif + + +int evalskip; /* set if we are skipping commands */ +STATIC int skipcount; /* number of levels to skip */ +MKINIT int loopnest; /* current loop nesting level */ +static int funcline; /* starting line number of current function, or 0 if not in a function */ + + +char *commandname; +int exitstatus; /* exit status of last command */ +int back_exitstatus; /* exit status of backquoted command */ +int savestatus = -1; /* exit status of last command outside traps */ + + +#if !defined(__alpha__) || (defined(__GNUC__) && __GNUC__ >= 3) +STATIC +#endif +void evaltreenr(union node *, int) __attribute__ ((__noreturn__)); +STATIC int evalloop(union node *, int); +STATIC int evalfor(union node *, int); +STATIC int evalcase(union node *, int); +STATIC int evalsubshell(union node *, int); +STATIC void expredir(union node *); +STATIC int evalpipe(union node *, int); +#ifdef notyet +STATIC int evalcommand(union node *, int, struct backcmd *); +#else +STATIC int evalcommand(union node *, int); +#endif +STATIC int evalbltin(const struct builtincmd *, int, char **, int); +STATIC int evalfun(struct funcnode *, int, char **, int); +STATIC void prehash(union node *); +STATIC int eprintlist(struct output *, struct strlist *, int); +STATIC int bltincmd(int, char **); + + +STATIC const struct builtincmd bltin = { + .name = nullstr, + .builtin = bltincmd, + .flags = BUILTIN_REGULAR, +}; + + +/* + * Called to reset things after an exception. + */ + +#ifdef mkinit +INCLUDE "eval.h" + +EXITRESET { + if (savestatus >= 0) { + if (exception == EXEXIT || evalskip == SKIPFUNCDEF) + exitstatus = savestatus; + savestatus = -1; + } + evalskip = 0; + loopnest = 0; +} +#endif + + + +/* + * The eval commmand. + */ + +static int evalcmd(int argc, char **argv, int flags) +{ + char *p; + char *concat; + char **ap; + + if (argc > 1) { + p = argv[1]; + if (argc > 2) { + STARTSTACKSTR(concat); + ap = argv + 2; + for (;;) { + concat = stputs(p, concat); + if ((p = *ap++) == NULL) + break; + STPUTC(' ', concat); + } + STPUTC('\0', concat); + p = grabstackstr(concat); + } + return evalstring(p, flags & EV_TESTED); + } + return 0; +} + + +/* + * Execute a command or commands contained in a string. + */ + +int +evalstring(char *s, int flags) +{ + union node *n; + struct stackmark smark; + int status; + + s = sstrdup(s); + setinputstring(s); + setstackmark(&smark); + + status = 0; + for (; (n = parsecmd(0)) != NEOF; popstackmark(&smark)) { + int i; + + i = evaltree(n, flags & ~(parser_eof() ? 0 : EV_EXIT)); + if (n) + status = i; + + if (evalskip) + break; + } + popstackmark(&smark); + popfile(); + stunalloc(s); + + return status; +} + + + +/* + * Evaluate a parse tree. The value is left in the global variable + * exitstatus. + */ + +int +evaltree(union node *n, int flags) +{ + int checkexit = 0; + int (*evalfn)(union node *, int); + struct stackmark smark; + unsigned isor; + int status = 0; + + setstackmark(&smark); + + if (n == NULL) { + TRACE(("evaltree(NULL) called\n")); + goto out; + } + + dotrap(); + +#ifndef SMALL + displayhist = 1; /* show history substitutions done with fc */ +#endif + TRACE(("pid %d, evaltree(%p: %d, %d) called\n", + getpid(), n, n->type, flags)); + switch (n->type) { + default: +#ifdef DEBUG + out1fmt("Node type = %d\n", n->type); +#ifndef USE_GLIBC_STDIO + flushout(out1); +#endif + break; +#endif + case NNOT: + status = !evaltree(n->nnot.com, EV_TESTED); + goto setstatus; + case NREDIR: + errlinno = lineno = n->nredir.linno; + if (funcline) + lineno -= funcline - 1; + expredir(n->nredir.redirect); + pushredir(n->nredir.redirect); + status = redirectsafe(n->nredir.redirect, REDIR_PUSH) ?: + evaltree(n->nredir.n, flags & EV_TESTED); + if (n->nredir.redirect) + popredir(0); + goto setstatus; + case NCMD: +#ifdef notyet + if (eflag && !(flags & EV_TESTED)) + checkexit = ~0; + status = evalcommand(n, flags, (struct backcmd *)NULL); + goto setstatus; +#else + evalfn = evalcommand; +checkexit: + if (eflag && !(flags & EV_TESTED)) + checkexit = ~0; + goto calleval; +#endif + case NFOR: + evalfn = evalfor; + goto calleval; + case NWHILE: + case NUNTIL: + evalfn = evalloop; + goto calleval; + case NSUBSHELL: + case NBACKGND: + evalfn = evalsubshell; + goto checkexit; + case NPIPE: + evalfn = evalpipe; + goto checkexit; + case NCASE: + evalfn = evalcase; + goto calleval; + case NAND: + case NOR: + case NSEMI: +#if NAND + 1 != NOR +#error NAND + 1 != NOR +#endif +#if NOR + 1 != NSEMI +#error NOR + 1 != NSEMI +#endif + isor = n->type - NAND; + status = evaltree(n->nbinary.ch1, + (flags | ((isor >> 1) - 1)) & EV_TESTED); + if ((!status) == isor || evalskip) + break; + n = n->nbinary.ch2; +evaln: + evalfn = evaltree; +calleval: + status = evalfn(n, flags); + goto setstatus; + case NIF: + status = evaltree(n->nif.test, EV_TESTED); + if (evalskip) + break; + if (!status) { + n = n->nif.ifpart; + goto evaln; + } else if (n->nif.elsepart) { + n = n->nif.elsepart; + goto evaln; + } + status = 0; + goto setstatus; + case NDEFUN: + defun(n); +setstatus: + exitstatus = status; + break; + } +out: + dotrap(); + + if (checkexit & status) + goto exexit; + + if (flags & EV_EXIT) { +exexit: + exraise(EXEND); + } + + popstackmark(&smark); + + return exitstatus; +} + + +#if !defined(__alpha__) || (defined(__GNUC__) && __GNUC__ >= 3) +STATIC +#endif +void evaltreenr(union node *n, int flags) +#ifdef HAVE_ATTRIBUTE_ALIAS + __attribute__ ((alias("evaltree"))); +#else +{ + evaltree(n, flags); + abort(); +} +#endif + + +static int skiploop(void) +{ + int skip = evalskip; + + switch (skip) { + case 0: + break; + + case SKIPBREAK: + case SKIPCONT: + if (likely(--skipcount <= 0)) { + evalskip = 0; + break; + } + + skip = SKIPBREAK; + break; + } + + return skip; +} + + +STATIC int +evalloop(union node *n, int flags) +{ + int skip; + int status; + + loopnest++; + status = 0; + flags &= EV_TESTED; + do { + int i; + + i = evaltree(n->nbinary.ch1, EV_TESTED); + skip = skiploop(); + if (skip == SKIPFUNC) + status = i; + if (skip) + continue; + if (n->type != NWHILE) + i = !i; + if (i != 0) + break; + status = evaltree(n->nbinary.ch2, flags); + skip = skiploop(); + } while (!(skip & ~SKIPCONT)); + loopnest--; + + return status; +} + + + +STATIC int +evalfor(union node *n, int flags) +{ + struct arglist arglist; + union node *argp; + struct strlist *sp; + int status; + + errlinno = lineno = n->nfor.linno; + if (funcline) + lineno -= funcline - 1; + + arglist.lastp = &arglist.list; + for (argp = n->nfor.args ; argp ; argp = argp->narg.next) { + expandarg(argp, &arglist, EXP_FULL | EXP_TILDE); + } + *arglist.lastp = NULL; + + status = 0; + loopnest++; + flags &= EV_TESTED; + for (sp = arglist.list ; sp ; sp = sp->next) { + setvar(n->nfor.var, sp->text, 0); + status = evaltree(n->nfor.body, flags); + if (skiploop() & ~SKIPCONT) + break; + } + loopnest--; + + return status; +} + + + +STATIC int +evalcase(union node *n, int flags) +{ + union node *cp; + union node *patp; + struct arglist arglist; + int status = 0; + + errlinno = lineno = n->ncase.linno; + if (funcline) + lineno -= funcline - 1; + + arglist.lastp = &arglist.list; + expandarg(n->ncase.expr, &arglist, EXP_TILDE); + for (cp = n->ncase.cases ; cp && evalskip == 0 ; cp = cp->nclist.next) { + for (patp = cp->nclist.pattern ; patp ; patp = patp->narg.next) { + if (casematch(patp, arglist.list->text)) { + /* Ensure body is non-empty as otherwise + * EV_EXIT may prevent us from setting the + * exit status. + */ + if (evalskip == 0 && cp->nclist.body) { + status = evaltree(cp->nclist.body, + flags); + } + goto out; + } + } + } +out: + return status; +} + + + +/* + * Kick off a subshell to evaluate a tree. + */ + +STATIC int +evalsubshell(union node *n, int flags) +{ + struct job *jp; + int backgnd = (n->type == NBACKGND); + int status; + + errlinno = lineno = n->nredir.linno; + if (funcline) + lineno -= funcline - 1; + + expredir(n->nredir.redirect); + INTOFF; + if (!backgnd && flags & EV_EXIT && !have_traps()) { + forkreset(); + goto nofork; + } + jp = makejob(n, 1); + if (forkshell(jp, n, backgnd) == 0) { + flags |= EV_EXIT; + if (backgnd) + flags &=~ EV_TESTED; +nofork: + INTON; + redirect(n->nredir.redirect, 0); + evaltreenr(n->nredir.n, flags); + /* never returns */ + } + status = 0; + if (! backgnd) + status = waitforjob(jp); + INTON; + return status; +} + + + +/* + * Compute the names of the files in a redirection list. + */ + +STATIC void +expredir(union node *n) +{ + union node *redir; + + for (redir = n ; redir ; redir = redir->nfile.next) { + struct arglist fn; + fn.lastp = &fn.list; + switch (redir->type) { + case NFROMTO: + case NFROM: + case NTO: + case NCLOBBER: + case NAPPEND: + expandarg(redir->nfile.fname, &fn, EXP_TILDE | EXP_REDIR); + redir->nfile.expfname = fn.list->text; + break; + case NFROMFD: + case NTOFD: + if (redir->ndup.vname) { + expandarg(redir->ndup.vname, &fn, EXP_TILDE | EXP_REDIR); + fixredir(redir, fn.list->text, 1); + } + break; + } + } +} + + + +/* + * Evaluate a pipeline. All the processes in the pipeline are children + * of the process creating the pipeline. (This differs from some versions + * of the shell, which make the last process in a pipeline the parent + * of all the rest.) + */ + +STATIC int +evalpipe(union node *n, int flags) +{ + struct job *jp; + struct nodelist *lp; + int pipelen; + int prevfd; + int pip[2]; + int status = 0; + + TRACE(("evalpipe(0x%lx) called\n", (long)n)); + pipelen = 0; + for (lp = n->npipe.cmdlist ; lp ; lp = lp->next) + pipelen++; + flags |= EV_EXIT; + INTOFF; + jp = makejob(n, pipelen); + prevfd = -1; + for (lp = n->npipe.cmdlist ; lp ; lp = lp->next) { + prehash(lp->n); + pip[1] = -1; + if (lp->next) { + if (pipe(pip) < 0) { + close(prevfd); + sh_error("Pipe call failed"); + } + } + if (forkshell(jp, lp->n, n->npipe.backgnd) == 0) { + INTON; + if (pip[1] >= 0) { + close(pip[0]); + } + if (prevfd > 0) { + dup2(prevfd, 0); + close(prevfd); + } + if (pip[1] > 1) { + dup2(pip[1], 1); + close(pip[1]); + } + evaltreenr(lp->n, flags); + /* never returns */ + } + if (prevfd >= 0) + close(prevfd); + prevfd = pip[0]; + close(pip[1]); + } + if (n->npipe.backgnd == 0) { + status = waitforjob(jp); + TRACE(("evalpipe: job done exit status %d\n", status)); + } + INTON; + + return status; +} + + + +/* + * Execute a command inside back quotes. If it's a builtin command, we + * want to save its output in a block obtained from malloc. Otherwise + * we fork off a subprocess and get the output of the command via a pipe. + * Should be called with interrupts off. + */ + +void +evalbackcmd(union node *n, struct backcmd *result) +{ + int pip[2]; + struct job *jp; + + result->fd = -1; + result->buf = NULL; + result->nleft = 0; + result->jp = NULL; + if (n == NULL) { + goto out; + } + + if (pipe(pip) < 0) + sh_error("Pipe call failed"); + jp = makejob(n, 1); + if (forkshell(jp, n, FORK_NOJOB) == 0) { + FORCEINTON; + close(pip[0]); + if (pip[1] != 1) { + dup2(pip[1], 1); + close(pip[1]); + } + ifsfree(); + evaltreenr(n, EV_EXIT); + /* NOTREACHED */ + } + close(pip[1]); + result->fd = pip[0]; + result->jp = jp; + +out: + TRACE(("evalbackcmd done: fd=%d buf=0x%x nleft=%d jp=0x%x\n", + result->fd, result->buf, result->nleft, result->jp)); +} + +static struct strlist *fill_arglist(struct arglist *arglist, + union node **argpp) +{ + struct strlist **lastp = arglist->lastp; + union node *argp; + + while ((argp = *argpp)) { + expandarg(argp, arglist, EXP_FULL | EXP_TILDE); + *argpp = argp->narg.next; + if (*lastp) + break; + } + + return *lastp; +} + +static int parse_command_args(struct arglist *arglist, union node **argpp, + const char **path) +{ + struct strlist *sp = arglist->list; + char *cp, c; + + for (;;) { + sp = unlikely(sp->next) ? sp->next : + fill_arglist(arglist, argpp); + if (!sp) + return 0; + cp = sp->text; + if (*cp++ != '-') + break; + if (!(c = *cp++)) + break; + if (c == '-' && !*cp) { + if (likely(!sp->next) && !fill_arglist(arglist, argpp)) + return 0; + sp = sp->next; + break; + } + do { + switch (c) { + case 'p': + *path = defpath; + break; + default: + /* run 'typecmd' for other options */ + return 0; + } + } while ((c = *cp++)); + } + + arglist->list = sp; + return DO_NOFUNC; +} + +/* + * Execute a simple command. + */ + +STATIC int +#ifdef notyet +evalcommand(union node *cmd, int flags, struct backcmd *backcmd) +#else +evalcommand(union node *cmd, int flags) +#endif +{ + struct localvar_list *localvar_stop; + struct parsefile *file_stop; + struct redirtab *redir_stop; + union node *argp; + struct arglist arglist; + struct arglist varlist; + char **argv; + int argc; + struct strlist *osp; + struct strlist *sp; +#ifdef notyet + int pip[2]; +#endif + struct cmdentry cmdentry; + struct job *jp; + char *lastarg; + const char *path; + int spclbltin; + int cmd_flag; + int execcmd; + int status; + char **nargv; + int vflags; + int vlocal; + + errlinno = lineno = cmd->ncmd.linno; + if (funcline) + lineno -= funcline - 1; + + /* First expand the arguments. */ + TRACE(("evalcommand(0x%lx, %d) called\n", (long)cmd, flags)); + file_stop = parsefile; + back_exitstatus = 0; + + cmdentry.cmdtype = CMDBUILTIN; + cmdentry.u.cmd = &bltin; + varlist.lastp = &varlist.list; + *varlist.lastp = NULL; + arglist.lastp = &arglist.list; + *arglist.lastp = NULL; + + cmd_flag = 0; + execcmd = 0; + spclbltin = -1; + vflags = 0; + vlocal = 0; + path = NULL; + + argc = 0; + argp = cmd->ncmd.args; + if ((osp = fill_arglist(&arglist, &argp))) { + int pseudovarflag = 0; + + for (;;) { + find_command(arglist.list->text, &cmdentry, + cmd_flag | DO_REGBLTIN, pathval()); + + vlocal++; + + /* implement bltin and command here */ + if (cmdentry.cmdtype != CMDBUILTIN) + break; + + pseudovarflag = cmdentry.u.cmd->flags & BUILTIN_ASSIGN; + if (likely(spclbltin < 0)) { + spclbltin = + cmdentry.u.cmd->flags & + BUILTIN_SPECIAL + ; + vlocal = spclbltin ^ BUILTIN_SPECIAL; + } + execcmd = cmdentry.u.cmd == EXECCMD; + if (likely(cmdentry.u.cmd != COMMANDCMD)) + break; + + cmd_flag = parse_command_args(&arglist, &argp, &path); + if (!cmd_flag) + break; + } + + for (; argp; argp = argp->narg.next) + expandarg(argp, &arglist, + pseudovarflag && + isassignment(argp->narg.text) ? + EXP_VARTILDE : EXP_FULL | EXP_TILDE); + + for (sp = arglist.list; sp; sp = sp->next) + argc++; + + if (execcmd && argc > 1) + vflags = VEXPORT; + } + + localvar_stop = pushlocalvars(vlocal); + + /* Reserve one extra spot at the front for shellexec. */ + nargv = stalloc(sizeof (char *) * (argc + 2)); + argv = ++nargv; + for (sp = arglist.list ; sp ; sp = sp->next) { + TRACE(("evalcommand arg: %s\n", sp->text)); + *nargv++ = sp->text; + } + *nargv = NULL; + + lastarg = NULL; + if (iflag && funcline == 0 && argc > 0) + lastarg = nargv[-1]; + + preverrout.fd = 2; + expredir(cmd->ncmd.redirect); + redir_stop = pushredir(cmd->ncmd.redirect); + status = redirectsafe(cmd->ncmd.redirect, REDIR_PUSH|REDIR_SAVEFD2); + + if (unlikely(status)) { +bail: + exitstatus = status; + + /* We have a redirection error. */ + if (spclbltin > 0) + exraise(EXERROR); + + goto out; + } + + for (argp = cmd->ncmd.assign; argp; argp = argp->narg.next) { + struct strlist **spp; + + spp = varlist.lastp; + expandarg(argp, &varlist, EXP_VARTILDE); + + if (vlocal) + mklocal((*spp)->text, VEXPORT); + else + setvareq((*spp)->text, vflags); + } + + /* Print the command if xflag is set. */ + if (xflag) { + struct output *out; + int sep; + + out = &preverrout; + outstr(expandstr(ps4val()), out); + sep = 0; + sep = eprintlist(out, varlist.list, sep); + eprintlist(out, osp, sep); + outcslow('\n', out); +#ifdef FLUSHERR + flushout(out); +#endif + } + + /* Now locate the command. */ + if (cmdentry.cmdtype != CMDBUILTIN || + !(cmdentry.u.cmd->flags & BUILTIN_REGULAR)) { + path = unlikely(path) ? path : pathval(); + find_command(argv[0], &cmdentry, cmd_flag | DO_ERR, path); + } + + jp = NULL; + + /* Execute the command. */ + switch (cmdentry.cmdtype) { + case CMDUNKNOWN: + status = 127; +#ifdef FLUSHERR + flushout(&errout); +#endif + goto bail; + + default: + /* Fork off a child process if necessary. */ + if (!(flags & EV_EXIT) || have_traps()) { + INTOFF; + jp = vforkexec(cmd, argv, path, cmdentry.u.index); + break; + } + shellexec(argv, path, cmdentry.u.index); + /* NOTREACHED */ + + case CMDBUILTIN: + if (evalbltin(cmdentry.u.cmd, argc, argv, flags) && + !(exception == EXERROR && spclbltin <= 0)) { +raise: + longjmp(handler->loc, 1); + } + break; + + case CMDFUNCTION: + if (evalfun(cmdentry.u.func, argc, argv, flags)) + goto raise; + break; + } + + status = waitforjob(jp); + FORCEINTON; + +out: + if (cmd->ncmd.redirect) + popredir(execcmd); + unwindredir(redir_stop); + unwindfiles(file_stop); + unwindlocalvars(localvar_stop); + if (lastarg) + /* dsl: I think this is intended to be used to support + * '_' in 'vi' command mode during line editing... + * However I implemented that within libedit itself. + */ + setvar("_", lastarg, 0); + + return status; +} + +STATIC int +evalbltin(const struct builtincmd *cmd, int argc, char **argv, int flags) +{ + char *volatile savecmdname; + struct jmploc *volatile savehandler; + struct jmploc jmploc; + int status; + int i; + + savecmdname = commandname; + savehandler = handler; + if ((i = setjmp(jmploc.loc))) + goto cmddone; + handler = &jmploc; + commandname = argv[0]; + argptr = argv + 1; + optptr = NULL; /* initialize nextopt */ + if (cmd == EVALCMD) + status = evalcmd(argc, argv, flags); + else + status = (*cmd->builtin)(argc, argv); + flushall(); + if (outerr(out1)) + sh_warnx("%s: I/O error", commandname); + status |= outerr(out1); + exitstatus = status; +cmddone: + freestdout(); + commandname = savecmdname; + handler = savehandler; + + return i; +} + +STATIC int +evalfun(struct funcnode *func, int argc, char **argv, int flags) +{ + volatile struct shparam saveparam; + struct jmploc *volatile savehandler; + struct jmploc jmploc; + int e; + int savefuncline; + int saveloopnest; + + saveparam = shellparam; + savefuncline = funcline; + saveloopnest = loopnest; + savehandler = handler; + if ((e = setjmp(jmploc.loc))) { + goto funcdone; + } + INTOFF; + handler = &jmploc; + shellparam.malloc = 0; + func->count++; + funcline = func->n.ndefun.linno; + loopnest = 0; + INTON; + shellparam.nparam = argc - 1; + shellparam.p = argv + 1; + shellparam.optind = 1; + shellparam.optoff = -1; + evaltree(func->n.ndefun.body, flags & EV_TESTED); +funcdone: + INTOFF; + loopnest = saveloopnest; + funcline = savefuncline; + freefunc(func); + freeparam(&shellparam); + shellparam = saveparam; + handler = savehandler; + INTON; + evalskip &= ~(SKIPFUNC | SKIPFUNCDEF); + return e; +} + + +/* + * Search for a command. This is called before we fork so that the + * location of the command will be available in the parent as well as + * the child. The check for "goodname" is an overly conservative + * check that the name will not be subject to expansion. + */ + +STATIC void +prehash(union node *n) +{ + struct cmdentry entry; + + if (n->type == NCMD && n->ncmd.args) + if (goodname(n->ncmd.args->narg.text)) + find_command(n->ncmd.args->narg.text, &entry, 0, + pathval()); +} + + + +/* + * Builtin commands. Builtin commands whose functions are closely + * tied to evaluation are implemented here. + */ + +/* + * No command given. + */ + +STATIC int +bltincmd(int argc, char **argv) +{ + /* + * Preserve exitstatus of a previous possible redirection + * as POSIX mandates + */ + return back_exitstatus; +} + + +/* + * Handle break and continue commands. Break, continue, and return are + * all handled by setting the evalskip flag. The evaluation routines + * above all check this flag, and if it is set they start skipping + * commands rather than executing them. The variable skipcount is + * the number of loops to break/continue, or the number of function + * levels to return. (The latter is always 1.) It should probably + * be an error to break out of more loops than exist, but it isn't + * in the standard shell so we don't make it one here. + */ + +int +breakcmd(int argc, char **argv) +{ + int n = argc > 1 ? number(argv[1]) : 1; + + if (n <= 0) + badnum(argv[1]); + if (n > loopnest) + n = loopnest; + if (n > 0) { + evalskip = (**argv == 'c')? SKIPCONT : SKIPBREAK; + skipcount = n; + } + return 0; +} + + +/* + * The return command. + */ + +int +returncmd(int argc, char **argv) +{ + int skip; + int status; + + /* + * If called outside a function, do what ksh does; + * skip the rest of the file. + */ + if (argv[1]) { + skip = SKIPFUNC; + status = number(argv[1]); + } else { + skip = SKIPFUNCDEF; + status = exitstatus; + } + evalskip = skip; + + return status; +} + + +int +falsecmd(int argc, char **argv) +{ + return 1; +} + + +int +truecmd(int argc, char **argv) +{ + return 0; +} + + +int +execcmd(int argc, char **argv) +{ + if (argc > 1) { + iflag = 0; /* exit on error */ + mflag = 0; + optschanged(); + shellexec(argv + 1, pathval(), 0); + } + return 0; +} + + +STATIC int +eprintlist(struct output *out, struct strlist *sp, int sep) +{ + while (sp) { + const char *p; + + p = " %s"; + p += (1 - sep); + sep |= 1; + outfmt(out, p, sp->text); + sp = sp->next; + } + + return sep; +} diff --git a/bin/dash/src/eval.h b/bin/dash/src/eval.h new file mode 100644 index 00000000..63e7d865 --- /dev/null +++ b/bin/dash/src/eval.h @@ -0,0 +1,65 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)eval.h 8.2 (Berkeley) 5/4/95 + */ + +extern char *commandname; /* currently executing command */ +extern int exitstatus; /* exit status of last command */ +extern int back_exitstatus; /* exit status of backquoted command */ +extern int savestatus; /* exit status of last command outside traps */ + + +struct backcmd { /* result of evalbackcmd */ + int fd; /* file descriptor to read from */ + char *buf; /* buffer */ + int nleft; /* number of chars in buffer */ + struct job *jp; /* job structure for command */ +}; + +/* flags in argument to evaltree */ +#define EV_EXIT 01 /* exit after evaluating tree */ +#define EV_TESTED 02 /* exit status is checked; ignore -e flag */ + +int evalstring(char *, int); +union node; /* BLETCH for ansi C */ +int evaltree(union node *, int); +void evalbackcmd(union node *, struct backcmd *); + +extern int evalskip; + +/* reasons for skipping commands (see comment on breakcmd routine) */ +#define SKIPBREAK (1 << 0) +#define SKIPCONT (1 << 1) +#define SKIPFUNC (1 << 2) +#define SKIPFUNCDEF (1 << 3) diff --git a/bin/dash/src/exec.c b/bin/dash/src/exec.c new file mode 100644 index 00000000..87354d49 --- /dev/null +++ b/bin/dash/src/exec.c @@ -0,0 +1,908 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include <fcntl.h> +#include <stdlib.h> +#ifdef HAVE_PATHS_H +#include <paths.h> +#endif + +/* + * When commands are first encountered, they are entered in a hash table. + * This ensures that a full path search will not have to be done for them + * on each invocation. + * + * We should investigate converting to a linear search, even though that + * would make the command name "hash" a misnomer. + */ + +#include "shell.h" +#include "main.h" +#include "nodes.h" +#include "parser.h" +#include "redir.h" +#include "eval.h" +#include "exec.h" +#include "builtins.h" +#include "var.h" +#include "options.h" +#include "output.h" +#include "syntax.h" +#include "memalloc.h" +#include "error.h" +#include "init.h" +#include "mystring.h" +#include "show.h" +#include "jobs.h" +#include "alias.h" +#include "system.h" + + +#define CMDTABLESIZE 31 /* should be prime */ +#define ARB 1 /* actual size determined at run time */ + + + +struct tblentry { + struct tblentry *next; /* next entry in hash chain */ + union param param; /* definition of builtin function */ + short cmdtype; /* index identifying command */ + char rehash; /* if set, cd done since entry created */ + char cmdname[ARB]; /* name of command */ +}; + + +STATIC struct tblentry *cmdtable[CMDTABLESIZE]; +STATIC int builtinloc = -1; /* index in path of %builtin, or -1 */ + + +STATIC void tryexec(char *, char **, char **); +STATIC void printentry(struct tblentry *); +STATIC void clearcmdentry(void); +STATIC struct tblentry *cmdlookup(const char *, int); +STATIC void delete_cmd_entry(void); +STATIC void addcmdentry(char *, struct cmdentry *); +STATIC int describe_command(struct output *, char *, const char *, int); + + +/* + * Exec a program. Never returns. If you change this routine, you may + * have to change the find_command routine as well. + */ + +void +shellexec(char **argv, const char *path, int idx) +{ + char *cmdname; + int e; + char **envp; + int exerrno; + + envp = environment(); + if (strchr(argv[0], '/') != NULL) { + tryexec(argv[0], argv, envp); + e = errno; + } else { + e = ENOENT; + while (padvance(&path, argv[0]) >= 0) { + cmdname = stackblock(); + if (--idx < 0 && pathopt == NULL) { + tryexec(cmdname, argv, envp); + if (errno != ENOENT && errno != ENOTDIR) + e = errno; + } + } + } + + /* Map to POSIX errors */ + switch (e) { + default: + exerrno = 126; + break; + case ELOOP: + case ENAMETOOLONG: + case ENOENT: + case ENOTDIR: + exerrno = 127; + break; + } + exitstatus = exerrno; + TRACE(("shellexec failed for %s, errno %d, suppressint %d\n", + argv[0], e, suppressint )); + exerror(EXEND, "%s: %s", argv[0], errmsg(e, E_EXEC)); + /* NOTREACHED */ +} + + +STATIC void +tryexec(char *cmd, char **argv, char **envp) +{ + char *const path_bshell = _PATH_BSHELL; + +repeat: +#ifdef SYSV + do { + execve(cmd, argv, envp); + } while (errno == EINTR); +#else + execve(cmd, argv, envp); +#endif + if (cmd != path_bshell && errno == ENOEXEC) { + *argv-- = cmd; + *argv = cmd = path_bshell; + goto repeat; + } +} + +static const char *legal_pathopt(const char *opt, const char *term, int magic) +{ + switch (magic) { + case 0: + opt = NULL; + break; + + case 1: + opt = prefix(opt, "builtin") ?: prefix(opt, "func"); + break; + + default: + opt += strcspn(opt, term); + break; + } + + if (opt && *opt == '%') + opt++; + + return opt; +} + +/* + * Do a path search. The variable path (passed by reference) should be + * set to the start of the path before the first call; padvance will update + * this value as it proceeds. Successive calls to padvance will return + * the possible path expansions in sequence. If an option (indicated by + * a percent sign) appears in the path entry then the global variable + * pathopt will be set to point to it; otherwise pathopt will be set to + * NULL. + * + * If magic is 0 then pathopt recognition will be disabled. If magic is + * 1 we shall recognise %builtin/%func. Otherwise we shall accept any + * pathopt. + */ + +const char *pathopt; + +int padvance_magic(const char **path, const char *name, int magic) +{ + const char *term = "%:"; + const char *lpathopt; + const char *p; + char *q; + const char *start; + size_t qlen; + size_t len; + + if (*path == NULL) + return -1; + + lpathopt = NULL; + start = *path; + + if (*start == '%' && (p = legal_pathopt(start + 1, term, magic))) { + lpathopt = start + 1; + start = p; + term = ":"; + } + + len = strcspn(start, term); + p = start + len; + + if (*p == '%') { + size_t extra = strchrnul(p, ':') - p; + + if (legal_pathopt(p + 1, term, magic)) + lpathopt = p + 1; + else + len += extra; + + p += extra; + } + + pathopt = lpathopt; + *path = *p == ':' ? p + 1 : NULL; + + /* "2" is for '/' and '\0' */ + qlen = len + strlen(name) + 2; + q = growstackto(qlen); + + if (likely(len)) { + q = mempcpy(q, start, len); + *q++ = '/'; + } + strcpy(q, name); + + return qlen; +} + + + +/*** Command hashing code ***/ + + +int +hashcmd(int argc, char **argv) +{ + struct tblentry **pp; + struct tblentry *cmdp; + int c; + struct cmdentry entry; + char *name; + + while ((c = nextopt("r")) != '\0') { + clearcmdentry(); + return 0; + } + if (*argptr == NULL) { + for (pp = cmdtable ; pp < &cmdtable[CMDTABLESIZE] ; pp++) { + for (cmdp = *pp ; cmdp ; cmdp = cmdp->next) { + if (cmdp->cmdtype == CMDNORMAL) + printentry(cmdp); + } + } + return 0; + } + c = 0; + while ((name = *argptr) != NULL) { + if ((cmdp = cmdlookup(name, 0)) && + (cmdp->cmdtype == CMDNORMAL || + (cmdp->cmdtype == CMDBUILTIN && + !(cmdp->param.cmd->flags & BUILTIN_REGULAR) && + builtinloc > 0))) + delete_cmd_entry(); + find_command(name, &entry, DO_ERR, pathval()); + if (entry.cmdtype == CMDUNKNOWN) + c = 1; + argptr++; + } + return c; +} + + +STATIC void +printentry(struct tblentry *cmdp) +{ + int idx; + const char *path; + char *name; + + idx = cmdp->param.index; + path = pathval(); + do { + padvance(&path, cmdp->cmdname); + } while (--idx >= 0); + name = stackblock(); + out1str(name); + out1fmt(snlfmt, cmdp->rehash ? "*" : nullstr); +} + + + +/* + * Resolve a command name. If you change this routine, you may have to + * change the shellexec routine as well. + */ + +void +find_command(char *name, struct cmdentry *entry, int act, const char *path) +{ + struct tblentry *cmdp; + int idx; + int prev; + char *fullname; + struct stat64 statb; + int e; + int updatetbl; + struct builtincmd *bcmd; + int len; + + /* If name contains a slash, don't use PATH or hash table */ + if (strchr(name, '/') != NULL) { + entry->u.index = -1; + if (act & DO_ABS) { + while (stat64(name, &statb) < 0) { +#ifdef SYSV + if (errno == EINTR) + continue; +#endif + entry->cmdtype = CMDUNKNOWN; + return; + } + } + entry->cmdtype = CMDNORMAL; + return; + } + + updatetbl = (path == pathval()); + if (!updatetbl) + act |= DO_ALTPATH; + + /* If name is in the table, check answer will be ok */ + if ((cmdp = cmdlookup(name, 0)) != NULL) { + int bit; + + switch (cmdp->cmdtype) { + default: +#if DEBUG + abort(); +#endif + case CMDNORMAL: + bit = DO_ALTPATH | DO_REGBLTIN; + break; + case CMDFUNCTION: + bit = DO_NOFUNC; + break; + case CMDBUILTIN: + bit = cmdp->param.cmd->flags & BUILTIN_REGULAR ? + 0 : DO_REGBLTIN; + break; + } + if (act & bit) { + if (act & bit & DO_REGBLTIN) + goto fail; + + updatetbl = 0; + cmdp = NULL; + } else if (cmdp->rehash == 0) + /* if not invalidated by cd, we're done */ + goto success; + } + + /* If %builtin not in path, check for builtin next */ + bcmd = find_builtin(name); + if (bcmd && ((bcmd->flags & BUILTIN_REGULAR) | (act & DO_ALTPATH) | + (builtinloc <= 0))) + goto builtin_success; + + if (act & DO_REGBLTIN) + goto fail; + + /* We have to search path. */ + prev = -1; /* where to start */ + if (cmdp && cmdp->rehash) { /* doing a rehash */ + if (cmdp->cmdtype == CMDBUILTIN) + prev = builtinloc; + else + prev = cmdp->param.index; + } + + e = ENOENT; + idx = -1; +loop: + while ((len = padvance(&path, name)) >= 0) { + const char *lpathopt = pathopt; + + fullname = stackblock(); + idx++; + if (lpathopt) { + if (*lpathopt == 'b') { + if (bcmd) + goto builtin_success; + continue; + } else if (!(act & DO_NOFUNC)) { + /* handled below */ + } else { + /* ignore unimplemented options */ + continue; + } + } + /* if rehash, don't redo absolute path names */ + if (fullname[0] == '/' && idx <= prev) { + if (idx < prev) + continue; + TRACE(("searchexec \"%s\": no change\n", name)); + goto success; + } + while (stat64(fullname, &statb) < 0) { +#ifdef SYSV + if (errno == EINTR) + continue; +#endif + if (errno != ENOENT && errno != ENOTDIR) + e = errno; + goto loop; + } + e = EACCES; /* if we fail, this will be the error */ + if (!S_ISREG(statb.st_mode)) + continue; + if (lpathopt) { /* this is a %func directory */ + stalloc(len); + readcmdfile(fullname); + if ((cmdp = cmdlookup(name, 0)) == NULL || + cmdp->cmdtype != CMDFUNCTION) + sh_error("%s not defined in %s", name, + fullname); + stunalloc(fullname); + goto success; + } +#ifdef notdef + /* XXX this code stops root executing stuff, and is buggy + if you need a group from the group list. */ + if (statb.st_uid == geteuid()) { + if ((statb.st_mode & 0100) == 0) + goto loop; + } else if (statb.st_gid == getegid()) { + if ((statb.st_mode & 010) == 0) + goto loop; + } else { + if ((statb.st_mode & 01) == 0) + goto loop; + } +#endif + TRACE(("searchexec \"%s\" returns \"%s\"\n", name, fullname)); + if (!updatetbl) { + entry->cmdtype = CMDNORMAL; + entry->u.index = idx; + return; + } + INTOFF; + cmdp = cmdlookup(name, 1); + cmdp->cmdtype = CMDNORMAL; + cmdp->param.index = idx; + INTON; + goto success; + } + + /* We failed. If there was an entry for this command, delete it */ + if (cmdp && updatetbl) + delete_cmd_entry(); + if (act & DO_ERR) + sh_warnx("%s: %s", name, errmsg(e, E_EXEC)); +fail: + entry->cmdtype = CMDUNKNOWN; + return; + +builtin_success: + if (!updatetbl) { + entry->cmdtype = CMDBUILTIN; + entry->u.cmd = bcmd; + return; + } + INTOFF; + cmdp = cmdlookup(name, 1); + cmdp->cmdtype = CMDBUILTIN; + cmdp->param.cmd = bcmd; + INTON; +success: + cmdp->rehash = 0; + entry->cmdtype = cmdp->cmdtype; + entry->u = cmdp->param; +} + + + +/* + * Search the table of builtin commands. + */ + +struct builtincmd * +find_builtin(const char *name) +{ + struct builtincmd *bp; + + bp = bsearch( + &name, builtincmd, NUMBUILTINS, sizeof(struct builtincmd), + pstrcmp + ); + return bp; +} + + + +/* + * Called when a cd is done. Marks all commands so the next time they + * are executed they will be rehashed. + */ + +void +hashcd(void) +{ + struct tblentry **pp; + struct tblentry *cmdp; + + for (pp = cmdtable ; pp < &cmdtable[CMDTABLESIZE] ; pp++) { + for (cmdp = *pp ; cmdp ; cmdp = cmdp->next) { + if (cmdp->cmdtype == CMDNORMAL || ( + cmdp->cmdtype == CMDBUILTIN && + !(cmdp->param.cmd->flags & BUILTIN_REGULAR) && + builtinloc > 0 + )) + cmdp->rehash = 1; + } + } +} + + + +/* + * Fix command hash table when PATH changed. + * Called before PATH is changed. The argument is the new value of PATH; + * pathval() still returns the old value at this point. + * Called with interrupts off. + */ + +void +changepath(const char *newval) +{ + const char *new; + int idx; + int bltin; + + new = newval; + idx = 0; + bltin = -1; + for (;;) { + if (*new == '%' && prefix(new + 1, "builtin")) { + bltin = idx; + break; + } + new = strchr(new, ':'); + if (!new) + break; + idx++; + new++; + } + builtinloc = bltin; + clearcmdentry(); +} + + +/* + * Clear out command entries. The argument specifies the first entry in + * PATH which has changed. + */ + +STATIC void +clearcmdentry(void) +{ + struct tblentry **tblp; + struct tblentry **pp; + struct tblentry *cmdp; + + INTOFF; + for (tblp = cmdtable ; tblp < &cmdtable[CMDTABLESIZE] ; tblp++) { + pp = tblp; + while ((cmdp = *pp) != NULL) { + if (cmdp->cmdtype == CMDNORMAL || + (cmdp->cmdtype == CMDBUILTIN && + !(cmdp->param.cmd->flags & BUILTIN_REGULAR) && + builtinloc > 0)) { + *pp = cmdp->next; + ckfree(cmdp); + } else { + pp = &cmdp->next; + } + } + } + INTON; +} + + + +/* + * Locate a command in the command hash table. If "add" is nonzero, + * add the command to the table if it is not already present. The + * variable "lastcmdentry" is set to point to the address of the link + * pointing to the entry, so that delete_cmd_entry can delete the + * entry. + * + * Interrupts must be off if called with add != 0. + */ + +struct tblentry **lastcmdentry; + + +STATIC struct tblentry * +cmdlookup(const char *name, int add) +{ + unsigned int hashval; + const char *p; + struct tblentry *cmdp; + struct tblentry **pp; + + p = name; + hashval = (unsigned char)*p << 4; + while (*p) + hashval += (unsigned char)*p++; + hashval &= 0x7FFF; + pp = &cmdtable[hashval % CMDTABLESIZE]; + for (cmdp = *pp ; cmdp ; cmdp = cmdp->next) { + if (equal(cmdp->cmdname, name)) + break; + pp = &cmdp->next; + } + if (add && cmdp == NULL) { + cmdp = *pp = ckmalloc(sizeof (struct tblentry) - ARB + + strlen(name) + 1); + cmdp->next = NULL; + cmdp->cmdtype = CMDUNKNOWN; + strcpy(cmdp->cmdname, name); + } + lastcmdentry = pp; + return cmdp; +} + +/* + * Delete the command entry returned on the last lookup. + */ + +STATIC void +delete_cmd_entry(void) +{ + struct tblentry *cmdp; + + INTOFF; + cmdp = *lastcmdentry; + *lastcmdentry = cmdp->next; + if (cmdp->cmdtype == CMDFUNCTION) + freefunc(cmdp->param.func); + ckfree(cmdp); + INTON; +} + + + +#ifdef notdef +void +getcmdentry(char *name, struct cmdentry *entry) +{ + struct tblentry *cmdp = cmdlookup(name, 0); + + if (cmdp) { + entry->u = cmdp->param; + entry->cmdtype = cmdp->cmdtype; + } else { + entry->cmdtype = CMDUNKNOWN; + entry->u.index = 0; + } +} +#endif + + +/* + * Add a new command entry, replacing any existing command entry for + * the same name - except special builtins. + */ + +STATIC void +addcmdentry(char *name, struct cmdentry *entry) +{ + struct tblentry *cmdp; + + cmdp = cmdlookup(name, 1); + if (cmdp->cmdtype == CMDFUNCTION) { + freefunc(cmdp->param.func); + } + cmdp->cmdtype = entry->cmdtype; + cmdp->param = entry->u; + cmdp->rehash = 0; +} + + +/* + * Define a shell function. + */ + +void +defun(union node *func) +{ + struct cmdentry entry; + + INTOFF; + entry.cmdtype = CMDFUNCTION; + entry.u.func = copyfunc(func); + addcmdentry(func->ndefun.text, &entry); + INTON; +} + + +/* + * Delete a function if it exists. + */ + +void +unsetfunc(const char *name) +{ + struct tblentry *cmdp; + + if ((cmdp = cmdlookup(name, 0)) != NULL && + cmdp->cmdtype == CMDFUNCTION) + delete_cmd_entry(); +} + +/* + * Locate and print what a word is... + */ + +int +typecmd(int argc, char **argv) +{ + int i; + int err = 0; + + for (i = 1; i < argc; i++) { + err |= describe_command(out1, argv[i], NULL, 1); + } + return err; +} + +STATIC int +describe_command(out, command, path, verbose) + struct output *out; + char *command; + const char *path; + int verbose; +{ + struct cmdentry entry; + struct tblentry *cmdp; + const struct alias *ap; + + if (verbose) { + outstr(command, out); + } + + /* First look at the keywords */ + if (findkwd(command)) { + outstr(verbose ? " is a shell keyword" : command, out); + goto out; + } + + /* Then look at the aliases */ + if ((ap = lookupalias(command, 0)) != NULL) { + if (verbose) { + outfmt(out, " is an alias for %s", ap->val); + } else { + outstr("alias ", out); + printalias(ap); + return 0; + } + goto out; + } + + /* Then if the standard search path is used, check if it is + * a tracked alias. + */ + if (path == NULL) { + path = pathval(); + cmdp = cmdlookup(command, 0); + } else { + cmdp = NULL; + } + + if (cmdp != NULL) { + entry.cmdtype = cmdp->cmdtype; + entry.u = cmdp->param; + } else { + /* Finally use brute force */ + find_command(command, &entry, DO_ABS, path); + } + + switch (entry.cmdtype) { + case CMDNORMAL: { + int j = entry.u.index; + char *p; + if (j == -1) { + p = command; + } else { + do { + padvance(&path, command); + } while (--j >= 0); + p = stackblock(); + } + if (verbose) { + outfmt( + out, " is%s %s", + cmdp ? " a tracked alias for" : nullstr, p + ); + } else { + outstr(p, out); + } + break; + } + + case CMDFUNCTION: + if (verbose) { + outstr(" is a shell function", out); + } else { + outstr(command, out); + } + break; + + case CMDBUILTIN: + if (verbose) { + outfmt( + out, " is a %sshell builtin", + entry.u.cmd->flags & BUILTIN_SPECIAL ? + "special " : nullstr + ); + } else { + outstr(command, out); + } + break; + + default: + if (verbose) { + outstr(": not found\n", out); + } + return 127; + } + +out: + outc('\n', out); + return 0; +} + +int +commandcmd(argc, argv) + int argc; + char **argv; +{ + char *cmd; + int c; + enum { + VERIFY_BRIEF = 1, + VERIFY_VERBOSE = 2, + } verify = 0; + const char *path = NULL; + + while ((c = nextopt("pvV")) != '\0') + if (c == 'V') + verify |= VERIFY_VERBOSE; + else if (c == 'v') + verify |= VERIFY_BRIEF; +#ifdef DEBUG + else if (c != 'p') + abort(); +#endif + else + path = defpath; + + cmd = *argptr; + if (verify && cmd) + return describe_command(out1, cmd, path, verify - VERIFY_BRIEF); + + return 0; +} diff --git a/bin/dash/src/exec.h b/bin/dash/src/exec.h new file mode 100644 index 00000000..423b07e6 --- /dev/null +++ b/bin/dash/src/exec.h @@ -0,0 +1,84 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)exec.h 8.3 (Berkeley) 6/8/95 + */ + +/* values of cmdtype */ +#define CMDUNKNOWN -1 /* no entry in table for command */ +#define CMDNORMAL 0 /* command is an executable program */ +#define CMDFUNCTION 1 /* command is a shell function */ +#define CMDBUILTIN 2 /* command is a shell builtin */ + + +struct cmdentry { + int cmdtype; + union param { + int index; + const struct builtincmd *cmd; + struct funcnode *func; + } u; +}; + + +/* action to find_command() */ +#define DO_ERR 0x01 /* prints errors */ +#define DO_ABS 0x02 /* checks absolute paths */ +#define DO_NOFUNC 0x04 /* don't return shell functions, for command */ +#define DO_ALTPATH 0x08 /* using alternate path */ +#define DO_REGBLTIN 0x10 /* regular built-ins and functions only */ + +union node; + +extern const char *pathopt; /* set by padvance */ + +void shellexec(char **, const char *, int) + __attribute__((__noreturn__)); +int padvance_magic(const char **path, const char *name, int magic); +int hashcmd(int, char **); +void find_command(char *, struct cmdentry *, int, const char *); +struct builtincmd *find_builtin(const char *); +void hashcd(void); +void changepath(const char *); +#ifdef notdef +void getcmdentry(char *, struct cmdentry *); +#endif +void defun(union node *); +void unsetfunc(const char *); +int typecmd(int, char **); +int commandcmd(int, char **); + +static inline int padvance(const char **path, const char *name) +{ + return padvance_magic(path, name, 1); +} diff --git a/bin/dash/src/expand.c b/bin/dash/src/expand.c new file mode 100644 index 00000000..1730670e --- /dev/null +++ b/bin/dash/src/expand.c @@ -0,0 +1,1753 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/types.h> +#include <sys/time.h> +#include <sys/stat.h> +#include <dirent.h> +#include <unistd.h> +#ifdef HAVE_GETPWNAM +#include <pwd.h> +#endif +#include <stdlib.h> +#include <stdio.h> +#include <inttypes.h> +#include <limits.h> +#include <string.h> +#ifdef HAVE_FNMATCH +#include <fnmatch.h> +#endif +#ifdef HAVE_GLOB +#include <glob.h> +#endif +#include <ctype.h> +#include <stdbool.h> + +/* + * Routines to expand arguments to commands. We have to deal with + * backquotes, shell variables, and file metacharacters. + */ + +#include "shell.h" +#include "main.h" +#include "nodes.h" +#include "eval.h" +#include "expand.h" +#include "syntax.h" +#include "parser.h" +#include "jobs.h" +#include "options.h" +#include "var.h" +#include "output.h" +#include "memalloc.h" +#include "error.h" +#include "mystring.h" +#include "show.h" +#include "system.h" + +/* + * _rmescape() flags + */ +#define RMESCAPE_ALLOC 0x1 /* Allocate a new string */ +#define RMESCAPE_GLOB 0x2 /* Add backslashes for glob */ +#define RMESCAPE_GROW 0x8 /* Grow strings instead of stalloc */ +#define RMESCAPE_HEAP 0x10 /* Malloc strings instead of stalloc */ + +/* Add CTLESC when necessary. */ +#define QUOTES_ESC (EXP_FULL | EXP_CASE) + +/* + * Structure specifying which parts of the string should be searched + * for IFS characters. + */ + +struct ifsregion { + struct ifsregion *next; /* next region in list */ + int begoff; /* offset of start of region */ + int endoff; /* offset of end of region */ + int nulonly; /* search for nul bytes only */ +}; + +/* output of current string */ +static char *expdest; +/* list of back quote expressions */ +static struct nodelist *argbackq; +/* first struct in list of ifs regions */ +static struct ifsregion ifsfirst; +/* last struct in list */ +static struct ifsregion *ifslastp; +/* holds expanded arg list */ +static struct arglist exparg; + +static char *argstr(char *p, int flag); +static char *exptilde(char *startp, int flag); +static char *expari(char *start, int flag); +STATIC void expbackq(union node *, int); +STATIC char *evalvar(char *, int); +static size_t strtodest(const char *p, int flags); +static size_t memtodest(const char *p, size_t len, int flags); +STATIC ssize_t varvalue(char *, int, int, int); +STATIC void expandmeta(struct strlist *); +#ifdef HAVE_GLOB +STATIC void addglob(const glob_t *); +#else +STATIC void expmeta(char *, unsigned, unsigned); +STATIC struct strlist *expsort(struct strlist *); +STATIC struct strlist *msort(struct strlist *, int); +#endif +STATIC void addfname(char *); +STATIC int patmatch(char *, const char *); +#ifndef HAVE_FNMATCH +STATIC int pmatch(const char *, const char *); +#else +#define pmatch(a, b) !fnmatch((a), (b), 0) +#endif +static size_t cvtnum(intmax_t num, int flags); +STATIC size_t esclen(const char *, const char *); +STATIC char *scanleft(char *, char *, char *, char *, int, int); +STATIC char *scanright(char *, char *, char *, char *, int, int); +STATIC void varunset(const char *, const char *, const char *, int) + __attribute__((__noreturn__)); + + +/* + * Prepare a pattern for a glob(3) call. + * + * Returns an stalloced string. + */ + +STATIC inline char * +preglob(const char *pattern, int flag) { + flag |= RMESCAPE_GLOB; + return _rmescapes((char *)pattern, flag); +} + + +STATIC size_t +esclen(const char *start, const char *p) { + size_t esc = 0; + + while (p > start && *--p == (char)CTLESC) { + esc++; + } + return esc; +} + + +static inline const char *getpwhome(const char *name) +{ +#ifdef HAVE_GETPWNAM + struct passwd *pw = getpwnam(name); + return pw ? pw->pw_dir : 0; +#else + return 0; +#endif +} + + +/* + * Perform variable substitution and command substitution on an argument, + * placing the resulting list of arguments in arglist. If EXP_FULL is true, + * perform splitting and file name expansion. When arglist is NULL, perform + * here document expansion. + */ + +void +expandarg(union node *arg, struct arglist *arglist, int flag) +{ + struct strlist *sp; + char *p; + + argbackq = arg->narg.backquote; + STARTSTACKSTR(expdest); + argstr(arg->narg.text, flag); + if (arglist == NULL) { + /* here document expanded */ + goto out; + } + p = grabstackstr(expdest); + exparg.lastp = &exparg.list; + /* + * TODO - EXP_REDIR + */ + if (flag & EXP_FULL) { + ifsbreakup(p, -1, &exparg); + *exparg.lastp = NULL; + exparg.lastp = &exparg.list; + expandmeta(exparg.list); + } else { + sp = (struct strlist *)stalloc(sizeof (struct strlist)); + sp->text = p; + *exparg.lastp = sp; + exparg.lastp = &sp->next; + } + *exparg.lastp = NULL; + if (exparg.list) { + *arglist->lastp = exparg.list; + arglist->lastp = exparg.lastp; + } + +out: + ifsfree(); +} + + + +/* + * Perform variable and command substitution. If EXP_FULL is set, output CTLESC + * characters to allow for further processing. Otherwise treat + * $@ like $* since no splitting will be performed. + */ + +static char *argstr(char *p, int flag) +{ + static const char spclchars[] = { + '=', + ':', + CTLQUOTEMARK, + CTLENDVAR, + CTLESC, + CTLVAR, + CTLBACKQ, + CTLARI, + CTLENDARI, + 0 + }; + const char *reject = spclchars; + int c; + int breakall = (flag & (EXP_WORD | EXP_QUOTED)) == EXP_WORD; + int inquotes; + size_t length; + int startloc; + + reject += !!(flag & EXP_VARTILDE2); + reject += flag & EXP_VARTILDE ? 0 : 2; + inquotes = 0; + length = 0; + if (flag & EXP_TILDE) { + flag &= ~EXP_TILDE; +tilde: + if (*p == '~') + p = exptilde(p, flag); + } +start: + startloc = expdest - (char *)stackblock(); + for (;;) { + int end; + + length += strcspn(p + length, reject); + end = 0; + c = (signed char)p[length]; + if (!(c & 0x80) || c == CTLENDARI || c == CTLENDVAR) { + /* + * c == '=' || c == ':' || c == '\0' || + * c == CTLENDARI || c == CTLENDVAR + */ + length++; + /* c == '\0' || c == CTLENDARI || c == CTLENDVAR */ + end = !!((c - 1) & 0x80); + } + if (length > 0 && !(flag & EXP_DISCARD)) { + int newloc; + char *q; + + q = stnputs(p, length, expdest); + q[-1] &= end - 1; + expdest = q - (flag & EXP_WORD ? end : 0); + newloc = q - (char *)stackblock() - end; + if (breakall && !inquotes && newloc > startloc) { + recordregion(startloc, newloc, 0); + } + startloc = newloc; + } + p += length + 1; + length = 0; + + if (end) + break; + + switch (c) { + case '=': + flag |= EXP_VARTILDE2; + reject++; + /* fall through */ + case ':': + /* + * sort of a hack - expand tildes in variable + * assignments (after the first '=' and after ':'s). + */ + if (*--p == '~') { + goto tilde; + } + continue; + case CTLQUOTEMARK: + /* "$@" syntax adherence hack */ + if (!inquotes && !memcmp(p, dolatstr + 1, + DOLATSTRLEN - 1)) { + p = evalvar(p + 1, flag | EXP_QUOTED) + 1; + goto start; + } + inquotes ^= EXP_QUOTED; +addquote: + if (flag & QUOTES_ESC) { + p--; + length++; + startloc++; + } + break; + case CTLESC: + startloc++; + length++; + goto addquote; + case CTLVAR: + p = evalvar(p, flag | inquotes); + goto start; + case CTLBACKQ: + expbackq(argbackq->n, flag | inquotes); + goto start; + case CTLARI: + p = expari(p, flag | inquotes); + goto start; + } + } + return p - 1; +} + +static char *exptilde(char *startp, int flag) +{ + signed char c; + char *name; + const char *home; + char *p; + + p = startp; + name = p + 1; + + while ((c = *++p) != '\0') { + switch(c) { + case CTLESC: + return (startp); + case CTLQUOTEMARK: + return (startp); + case ':': + if (flag & EXP_VARTILDE) + goto done; + break; + case '/': + case CTLENDVAR: + goto done; + } + } +done: + if (flag & EXP_DISCARD) + goto out; + *p = '\0'; + if (*name == '\0') { + home = lookupvar(homestr); + } else { + home = getpwhome(name); + } + *p = c; + if (!home) + goto lose; + strtodest(home, flag | EXP_QUOTED); +out: + return (p); +lose: + return (startp); +} + + +void +removerecordregions(int endoff) +{ + if (ifslastp == NULL) + return; + + if (ifsfirst.endoff > endoff) { + while (ifsfirst.next != NULL) { + struct ifsregion *ifsp; + INTOFF; + ifsp = ifsfirst.next->next; + ckfree(ifsfirst.next); + ifsfirst.next = ifsp; + INTON; + } + if (ifsfirst.begoff > endoff) + ifslastp = NULL; + else { + ifslastp = &ifsfirst; + ifsfirst.endoff = endoff; + } + return; + } + + ifslastp = &ifsfirst; + while (ifslastp->next && ifslastp->next->begoff < endoff) + ifslastp=ifslastp->next; + while (ifslastp->next != NULL) { + struct ifsregion *ifsp; + INTOFF; + ifsp = ifslastp->next->next; + ckfree(ifslastp->next); + ifslastp->next = ifsp; + INTON; + } + if (ifslastp->endoff > endoff) + ifslastp->endoff = endoff; +} + + +/* + * Expand arithmetic expression. Backup to start of expression, + * evaluate, place result in (backed up) result, adjust string position. + */ +static char *expari(char *start, int flag) +{ + struct stackmark sm; + int begoff; + int endoff; + int len; + intmax_t result; + char *p; + + p = stackblock(); + begoff = expdest - p; + p = argstr(start, flag & EXP_DISCARD); + + if (flag & EXP_DISCARD) + goto out; + + start = stackblock(); + endoff = expdest - start; + start += begoff; + STADJUST(start - expdest, expdest); + + removerecordregions(begoff); + + if (likely(flag & QUOTES_ESC)) + rmescapes(start); + + pushstackmark(&sm, endoff); + result = arith(start); + popstackmark(&sm); + + len = cvtnum(result, flag); + + if (likely(!(flag & EXP_QUOTED))) + recordregion(begoff, begoff + len, 0); + +out: + return p; +} + + +/* + * Expand stuff in backwards quotes. + */ + +STATIC void +expbackq(union node *cmd, int flag) +{ + struct backcmd in; + int i; + char buf[128]; + char *p; + char *dest; + int startloc; + struct stackmark smark; + + if (flag & EXP_DISCARD) + goto out; + + INTOFF; + startloc = expdest - (char *)stackblock(); + pushstackmark(&smark, startloc); + evalbackcmd(cmd, (struct backcmd *) &in); + popstackmark(&smark); + + p = in.buf; + i = in.nleft; + if (i == 0) + goto read; + for (;;) { + memtodest(p, i, flag); +read: + if (in.fd < 0) + break; + do { + i = read(in.fd, buf, sizeof buf); + } while (i < 0 && errno == EINTR); + TRACE(("expbackq: read returns %d\n", i)); + if (i <= 0) + break; + p = buf; + } + + if (in.buf) + ckfree(in.buf); + if (in.fd >= 0) { + close(in.fd); + back_exitstatus = waitforjob(in.jp); + } + INTON; + + /* Eat all trailing newlines */ + dest = expdest; + for (; dest > ((char *)stackblock() + startloc) && dest[-1] == '\n';) + STUNPUTC(dest); + expdest = dest; + + if (!(flag & EXP_QUOTED)) + recordregion(startloc, dest - (char *)stackblock(), 0); + TRACE(("evalbackq: size=%d: \"%.*s\"\n", + (dest - (char *)stackblock()) - startloc, + (dest - (char *)stackblock()) - startloc, + stackblock() + startloc)); + +out: + argbackq = argbackq->next; +} + + +STATIC char * +scanleft( + char *startp, char *rmesc, char *rmescend, char *str, int quotes, + int zero +) { + char *loc; + char *loc2; + char c; + + loc = startp; + loc2 = rmesc; + do { + int match; + const char *s = loc2; + c = *loc2; + if (zero) { + *loc2 = '\0'; + s = rmesc; + } + match = pmatch(str, s); + *loc2 = c; + if (match) + return loc; + if (quotes && *loc == (char)CTLESC) + loc++; + loc++; + loc2++; + } while (c); + return 0; +} + + +STATIC char * +scanright( + char *startp, char *rmesc, char *rmescend, char *str, int quotes, + int zero +) { + int esc = 0; + char *loc; + char *loc2; + + for (loc = str - 1, loc2 = rmescend; loc >= startp; loc2--) { + int match; + char c = *loc2; + const char *s = loc2; + if (zero) { + *loc2 = '\0'; + s = rmesc; + } + match = pmatch(str, s); + *loc2 = c; + if (match) + return loc; + loc--; + if (quotes) { + if (--esc < 0) { + esc = esclen(startp, loc); + } + if (esc % 2) { + esc--; + loc--; + } + } + } + return 0; +} + +static char *subevalvar(char *start, char *str, int strloc, int startloc, + int varflags, int flag) +{ + int subtype = varflags & VSTYPE; + int quotes = flag & QUOTES_ESC; + char *startp; + char *loc; + long amount; + char *rmesc, *rmescend; + int zero; + char *(*scan)(char *, char *, char *, char *, int , int); + char *p; + + p = argstr(start, (flag & EXP_DISCARD) | EXP_TILDE | + (str ? 0 : EXP_CASE)); + if (flag & EXP_DISCARD) + return p; + + startp = stackblock() + startloc; + + switch (subtype) { + case VSASSIGN: + setvar(str, startp, 0); + + loc = startp; + goto out; + + case VSQUESTION: + varunset(start, str, startp, varflags); + /* NOTREACHED */ + } + + subtype -= VSTRIMRIGHT; +#ifdef DEBUG + if (subtype < 0 || subtype > 3) + abort(); +#endif + + rmesc = startp; + rmescend = stackblock() + strloc; + if (quotes) { + rmesc = _rmescapes(startp, RMESCAPE_ALLOC | RMESCAPE_GROW); + if (rmesc != startp) { + rmescend = expdest; + startp = stackblock() + startloc; + } + } + rmescend--; + str = stackblock() + strloc; + preglob(str, 0); + + /* zero = subtype == VSTRIMLEFT || subtype == VSTRIMLEFTMAX */ + zero = subtype >> 1; + /* VSTRIMLEFT/VSTRIMRIGHTMAX -> scanleft */ + scan = (subtype & 1) ^ zero ? scanleft : scanright; + + loc = scan(startp, rmesc, rmescend, str, quotes, zero); + if (loc) { + if (zero) { + memmove(startp, loc, str - loc); + loc = startp + (str - loc) - 1; + } + *loc = '\0'; + } else + loc = str - 1; + +out: + amount = loc - expdest; + STADJUST(amount, expdest); + + /* Remove any recorded regions beyond start of variable */ + removerecordregions(startloc); + + return p; +} + + +/* + * Expand a variable, and return a pointer to the next character in the + * input string. + */ +STATIC char * +evalvar(char *p, int flag) +{ + int subtype; + int varflags; + char *var; + int patloc; + int startloc; + ssize_t varlen; + int discard; + int quoted; + + varflags = *p++; + subtype = varflags & VSTYPE; + + quoted = flag & EXP_QUOTED; + var = p; + startloc = expdest - (char *)stackblock(); + p = strchr(p, '=') + 1; + +again: + varlen = varvalue(var, varflags, flag, quoted); + if (varflags & VSNUL) + varlen--; + + discard = varlen < 0 ? EXP_DISCARD : 0; + + switch (subtype) { + case VSPLUS: + discard ^= EXP_DISCARD; + /* fall through */ + + case 0: + case VSMINUS: + p = argstr(p, flag | EXP_TILDE | EXP_WORD | + (discard ^ EXP_DISCARD)); + goto record; + + case VSASSIGN: + case VSQUESTION: + p = subevalvar(p, var, 0, startloc, varflags, + (flag & ~QUOTES_ESC) | + (discard ^ EXP_DISCARD)); + + if ((flag | ~discard) & EXP_DISCARD) + goto record; + + varflags &= ~VSNUL; + subtype = VSNORMAL; + goto again; + } + + if ((discard & ~flag) && uflag) + varunset(p, var, 0, 0); + + if (subtype == VSLENGTH) { + p++; + if (flag & EXP_DISCARD) + return p; + cvtnum(varlen > 0 ? varlen : 0, flag); + goto really_record; + } + + if (subtype == VSNORMAL) + goto record; + +#ifdef DEBUG + switch (subtype) { + case VSTRIMLEFT: + case VSTRIMLEFTMAX: + case VSTRIMRIGHT: + case VSTRIMRIGHTMAX: + break; + default: + abort(); + } +#endif + + flag |= discard; + if (!(flag & EXP_DISCARD)) { + /* + * Terminate the string and start recording the pattern + * right after it + */ + STPUTC('\0', expdest); + } + + patloc = expdest - (char *)stackblock(); + p = subevalvar(p, NULL, patloc, startloc, varflags, flag); + +record: + if ((flag | discard) & EXP_DISCARD) + return p; + +really_record: + if (quoted) { + quoted = *var == '@' && shellparam.nparam; + if (!quoted) + return p; + } + recordregion(startloc, expdest - (char *)stackblock(), quoted); + return p; +} + + +/* + * Put a string on the stack. + */ + +static size_t memtodest(const char *p, size_t len, int flags) +{ + const char *syntax = flags & EXP_QUOTED ? DQSYNTAX : BASESYNTAX; + char *q; + char *s; + + if (unlikely(!len)) + return 0; + + q = makestrspace(len * 2, expdest); + s = q; + + do { + int c = (signed char)*p++; + if (c) { + if ((flags & QUOTES_ESC) && + ((syntax[c] == CCTL) || + (flags & EXP_QUOTED && syntax[c] == CBACK))) + USTPUTC(CTLESC, q); + } else if (!(flags & EXP_KEEPNUL)) + continue; + USTPUTC(c, q); + } while (--len); + + expdest = q; + return q - s; +} + + +static size_t strtodest(const char *p, int flags) +{ + size_t len = strlen(p); + memtodest(p, len, flags); + return len; +} + + + +/* + * Add the value of a specialized variable to the stack string. + */ + +STATIC ssize_t +varvalue(char *name, int varflags, int flags, int quoted) +{ + int num; + char *p; + int i; + int sep; + char sepc; + char **ap; + int subtype = varflags & VSTYPE; + int discard = (subtype == VSPLUS || subtype == VSLENGTH) | + (flags & EXP_DISCARD); + ssize_t len = 0; + char c; + + if (!subtype) { + if (discard) + return -1; + + sh_error("Bad substitution"); + } + + flags |= EXP_KEEPNUL; + flags &= discard ? ~QUOTES_ESC : ~0; + sep = (flags & EXP_FULL) << CHAR_BIT; + + switch (*name) { + case '$': + num = rootpid; + goto numvar; + case '?': + num = exitstatus; + goto numvar; + case '#': + num = shellparam.nparam; + goto numvar; + case '!': + num = backgndpid; + if (num == 0) + return -1; +numvar: + len = cvtnum(num, flags); + break; + case '-': + p = makestrspace(NOPTS, expdest); + for (i = NOPTS - 1; i >= 0; i--) { + if (optlist[i] && optletters[i]) { + USTPUTC(optletters[i], p); + len++; + } + } + expdest = p; + break; + case '@': + if (quoted && sep) + goto param; + /* fall through */ + case '*': + /* We will set c to 0 or ~0 depending on whether + * we're doing field splitting. We won't do field + * splitting if either we're quoted or sep is zero. + * + * Instead of testing (quoted || !sep) the following + * trick optimises away any branches by using the + * fact that EXP_QUOTED (which is the only bit that + * can be set in quoted) is the same as EXP_FULL << + * CHAR_BIT (which is the only bit that can be set + * in sep). + */ +#if EXP_QUOTED >> CHAR_BIT != EXP_FULL +#error The following two lines expect EXP_QUOTED == EXP_FULL << CHAR_BIT +#endif + c = !((quoted | ~sep) & EXP_QUOTED) - 1; + sep &= ~quoted; + sep |= ifsset() ? (unsigned char)(c & ifsval()[0]) : ' '; +param: + sepc = sep; + if (!(ap = shellparam.p)) + return -1; + while ((p = *ap++)) { + len += strtodest(p, flags); + + if (*ap && sep) { + len++; + memtodest(&sepc, 1, flags); + } + } + break; + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + num = atoi(name); + if (num < 0 || num > shellparam.nparam) + return -1; + p = num ? shellparam.p[num - 1] : arg0; + goto value; + default: + p = lookupvar(name); +value: + if (!p) + return -1; + + len = strtodest(p, flags); + break; + } + + if (discard) + STADJUST(-len, expdest); + + return len; +} + + + +/* + * Record the fact that we have to scan this region of the + * string for IFS characters. + */ + +void +recordregion(int start, int end, int nulonly) +{ + struct ifsregion *ifsp; + + if (ifslastp == NULL) { + ifsp = &ifsfirst; + } else { + INTOFF; + ifsp = (struct ifsregion *)ckmalloc(sizeof (struct ifsregion)); + ifsp->next = NULL; + ifslastp->next = ifsp; + INTON; + } + ifslastp = ifsp; + ifslastp->begoff = start; + ifslastp->endoff = end; + ifslastp->nulonly = nulonly; +} + + + +/* + * Break the argument string into pieces based upon IFS and add the + * strings to the argument list. The regions of the string to be + * searched for IFS characters have been stored by recordregion. + * If maxargs is non-negative, at most maxargs arguments will be created, by + * joining together the last arguments. + */ +void +ifsbreakup(char *string, int maxargs, struct arglist *arglist) +{ + struct ifsregion *ifsp; + struct strlist *sp; + char *start; + char *p; + char *q; + char *r = NULL; + const char *ifs, *realifs; + int ifsspc; + int nulonly; + + + start = string; + if (ifslastp != NULL) { + ifsspc = 0; + nulonly = 0; + realifs = ifsset() ? ifsval() : defifs; + ifsp = &ifsfirst; + do { + int afternul; + + p = string + ifsp->begoff; + afternul = nulonly; + nulonly = ifsp->nulonly; + ifs = nulonly ? nullstr : realifs; + ifsspc = 0; + while (p < string + ifsp->endoff) { + int c; + bool isifs; + bool isdefifs; + + q = p; + c = *p++; + if (c == (char)CTLESC) + c = *p++; + + isifs = strchr(ifs, c); + isdefifs = false; + if (isifs) + isdefifs = strchr(defifs, c); + + /* If only reading one more argument: + * If we have exactly one field, + * read that field without its terminator. + * If we have more than one field, + * read all fields including their terminators, + * except for trailing IFS whitespace. + * + * This means that if we have only IFS + * characters left, and at most one + * of them is non-whitespace, we stop + * reading here. + * Otherwise, we read all the remaining + * characters except for trailing + * IFS whitespace. + * + * In any case, r indicates the start + * of the characters to remove, or NULL + * if no characters should be removed. + */ + if (!maxargs) { + if (isdefifs) { + if (!r) + r = q; + continue; + } + + if (!(isifs && ifsspc)) + r = NULL; + + ifsspc = 0; + continue; + } + + if (ifsspc) { + if (isifs) + q = p; + + start = q; + + if (isdefifs) + continue; + + isifs = false; + } + + if (isifs) { + if (!(afternul || nulonly)) + ifsspc = isdefifs; + /* Ignore IFS whitespace at start */ + if (q == start && ifsspc) { + start = p; + ifsspc = 0; + continue; + } + if (maxargs > 0 && !--maxargs) { + r = q; + continue; + } + *q = '\0'; + sp = (struct strlist *)stalloc(sizeof *sp); + sp->text = start; + *arglist->lastp = sp; + arglist->lastp = &sp->next; + start = p; + continue; + } + + ifsspc = 0; + } + } while ((ifsp = ifsp->next) != NULL); + if (nulonly) + goto add; + } + + if (r) + *r = '\0'; + + if (!*start) + return; + +add: + sp = (struct strlist *)stalloc(sizeof *sp); + sp->text = start; + *arglist->lastp = sp; + arglist->lastp = &sp->next; +} + +void ifsfree(void) +{ + struct ifsregion *p = ifsfirst.next; + + if (!p) + goto out; + + INTOFF; + do { + struct ifsregion *ifsp; + ifsp = p->next; + ckfree(p); + p = ifsp; + } while (p); + ifsfirst.next = NULL; + INTON; + +out: + ifslastp = NULL; +} + + + +/* + * Expand shell metacharacters. At this point, the only control characters + * should be escapes. The results are stored in the list exparg. + */ + +#ifdef HAVE_GLOB +STATIC void +expandmeta(struct strlist *str) +{ + /* TODO - EXP_REDIR */ + + while (str) { + const char *p; + glob_t pglob; + int i; + + if (fflag) + goto nometa; + INTOFF; + p = preglob(str->text, RMESCAPE_ALLOC | RMESCAPE_HEAP); + i = glob(p, GLOB_NOMAGIC, 0, &pglob); + if (p != str->text) + ckfree(p); + switch (i) { + case 0: + if ((pglob.gl_flags & (GLOB_NOMAGIC | GLOB_NOCHECK)) == + (GLOB_NOMAGIC | GLOB_NOCHECK)) + goto nometa2; + addglob(&pglob); + globfree(&pglob); + INTON; + break; + case GLOB_NOMATCH: +nometa2: + globfree(&pglob); + INTON; +nometa: + *exparg.lastp = str; + rmescapes(str->text); + exparg.lastp = &str->next; + break; + default: /* GLOB_NOSPACE */ + sh_error("Out of space"); + } + str = str->next; + } +} + + +/* + * Add the result of glob(3) to the list. + */ + +STATIC void +addglob(pglob) + const glob_t *pglob; +{ + char **p = pglob->gl_pathv; + + do { + addfname(*p); + } while (*++p); +} + + +#else /* HAVE_GLOB */ +STATIC char *expdir; +STATIC unsigned expdir_max; + + +STATIC void +expandmeta(struct strlist *str) +{ + static const char metachars[] = { + '*', '?', '[', 0 + }; + /* TODO - EXP_REDIR */ + + while (str) { + struct strlist **savelastp; + struct strlist *sp; + char *p; + unsigned len; + + if (fflag) + goto nometa; + if (!strpbrk(str->text, metachars)) + goto nometa; + savelastp = exparg.lastp; + + INTOFF; + p = preglob(str->text, RMESCAPE_ALLOC | RMESCAPE_HEAP); + len = strlen(p); + expdir_max = len + PATH_MAX; + expdir = ckmalloc(expdir_max); + + expmeta(p, len, 0); + ckfree(expdir); + if (p != str->text) + ckfree(p); + INTON; + if (exparg.lastp == savelastp) { + /* + * no matches + */ +nometa: + *exparg.lastp = str; + rmescapes(str->text); + exparg.lastp = &str->next; + } else { + *exparg.lastp = NULL; + *savelastp = sp = expsort(*savelastp); + while (sp->next != NULL) + sp = sp->next; + exparg.lastp = &sp->next; + } + str = str->next; + } +} + + +/* + * Do metacharacter (i.e. *, ?, [...]) expansion. + */ + +STATIC void +expmeta(char *name, unsigned name_len, unsigned expdir_len) +{ + char *enddir = expdir + expdir_len; + char *p; + const char *cp; + char *start; + char *endname; + int metaflag; + struct stat64 statb; + DIR *dirp; + struct dirent64 *dp; + int atend; + int matchdot; + int esc; + + metaflag = 0; + start = name; + for (p = name; esc = 0, *p; p += esc + 1) { + if (*p == '*' || *p == '?') + metaflag = 1; + else if (*p == '[') { + char *q = p + 1; + if (*q == '!') + q++; + for (;;) { + if (*q == '\\') + q++; + if (*q == '/' || *q == '\0') + break; + if (*++q == ']') { + metaflag = 1; + break; + } + } + } else { + if (*p == '\\' && p[1]) + esc++; + if (p[esc] == '/') { + if (metaflag) + break; + start = p + esc + 1; + } + } + } + if (metaflag == 0) { /* we've reached the end of the file name */ + if (!expdir_len) + return; + p = name; + do { + if (*p == '\\' && p[1]) + p++; + *enddir++ = *p; + } while (*p++); + if (lstat64(expdir, &statb) >= 0) + addfname(expdir); + return; + } + endname = p; + if (name < start) { + p = name; + do { + if (*p == '\\' && p[1]) + p++; + *enddir++ = *p++; + } while (p < start); + } + *enddir = 0; + cp = expdir; + expdir_len = enddir - cp; + if (!expdir_len) + cp = "."; + if ((dirp = opendir(cp)) == NULL) + return; + if (*endname == 0) { + atend = 1; + } else { + atend = 0; + *endname = '\0'; + endname += esc + 1; + } + name_len -= endname - name; + matchdot = 0; + p = start; + if (*p == '\\') + p++; + if (*p == '.') + matchdot++; + while (! int_pending() && (dp = readdir64(dirp)) != NULL) { + if (dp->d_name[0] == '.' && ! matchdot) + continue; + if (pmatch(start, dp->d_name)) { + if (atend) { + scopy(dp->d_name, enddir); + addfname(expdir); + } else { + unsigned offset; + unsigned len; + + p = stpcpy(enddir, dp->d_name); + *p = '/'; + + offset = p - expdir + 1; + len = offset + name_len + NAME_MAX; + if (len > expdir_max) { + len += PATH_MAX; + expdir = ckrealloc(expdir, len); + expdir_max = len; + } + + expmeta(endname, name_len, offset); + enddir = expdir + expdir_len; + } + } + } + closedir(dirp); + if (! atend) + endname[-esc - 1] = esc ? '\\' : '/'; +} +#endif /* HAVE_GLOB */ + + +/* + * Add a file name to the list. + */ + +STATIC void +addfname(char *name) +{ + struct strlist *sp; + + sp = (struct strlist *)stalloc(sizeof *sp); + sp->text = sstrdup(name); + *exparg.lastp = sp; + exparg.lastp = &sp->next; +} + + +#ifndef HAVE_GLOB +/* + * Sort the results of file name expansion. It calculates the number of + * strings to sort and then calls msort (short for merge sort) to do the + * work. + */ + +STATIC struct strlist * +expsort(struct strlist *str) +{ + int len; + struct strlist *sp; + + len = 0; + for (sp = str ; sp ; sp = sp->next) + len++; + return msort(str, len); +} + + +STATIC struct strlist * +msort(struct strlist *list, int len) +{ + struct strlist *p, *q = NULL; + struct strlist **lpp; + int half; + int n; + + if (len <= 1) + return list; + half = len >> 1; + p = list; + for (n = half ; --n >= 0 ; ) { + q = p; + p = p->next; + } + q->next = NULL; /* terminate first half of list */ + q = msort(list, half); /* sort first half of list */ + p = msort(p, len - half); /* sort second half */ + lpp = &list; + for (;;) { + if (strcmp(p->text, q->text) < 0) { + *lpp = p; + lpp = &p->next; + if ((p = *lpp) == NULL) { + *lpp = q; + break; + } + } else { + *lpp = q; + lpp = &q->next; + if ((q = *lpp) == NULL) { + *lpp = p; + break; + } + } + } + return list; +} +#endif + + +/* + * Returns true if the pattern matches the string. + */ + +STATIC inline int +patmatch(char *pattern, const char *string) +{ + return pmatch(preglob(pattern, 0), string); +} + + +#ifndef HAVE_FNMATCH +STATIC int ccmatch(const char *p, int chr, const char **r) +{ + static const struct class { + char name[10]; + int (*fn)(int); + } classes[] = { + { .name = ":alnum:]", .fn = isalnum }, + { .name = ":cntrl:]", .fn = iscntrl }, + { .name = ":lower:]", .fn = islower }, + { .name = ":space:]", .fn = isspace }, + { .name = ":alpha:]", .fn = isalpha }, + { .name = ":digit:]", .fn = isdigit }, + { .name = ":print:]", .fn = isprint }, + { .name = ":upper:]", .fn = isupper }, + { .name = ":blank:]", .fn = isblank }, + { .name = ":graph:]", .fn = isgraph }, + { .name = ":punct:]", .fn = ispunct }, + { .name = ":xdigit:]", .fn = isxdigit }, + }; + const struct class *class, *end; + + end = classes + sizeof(classes) / sizeof(classes[0]); + for (class = classes; class < end; class++) { + const char *q; + + q = prefix(p, class->name); + if (!q) + continue; + *r = q; + return class->fn(chr); + } + + *r = 0; + return 0; +} + +STATIC int +pmatch(const char *pattern, const char *string) +{ + const char *p, *q; + char c; + + p = pattern; + q = string; + for (;;) { + switch (c = *p++) { + case '\0': + goto breakloop; + case '\\': + if (*p) { + c = *p++; + } + goto dft; + case '?': + if (*q++ == '\0') + return 0; + break; + case '*': + c = *p; + while (c == '*') + c = *++p; + if (c != '\\' && c != '?' && c != '*' && c != '[') { + while (*q != c) { + if (*q == '\0') + return 0; + q++; + } + } + do { + if (pmatch(p, q)) + return 1; + } while (*q++ != '\0'); + return 0; + case '[': { + const char *startp; + int invert, found; + char chr; + + startp = p; + invert = 0; + if (*p == '!') { + invert++; + p++; + } + found = 0; + chr = *q; + if (chr == '\0') + return 0; + c = *p++; + do { + if (!c) { + p = startp; + c = '['; + goto dft; + } + if (c == '[') { + const char *r; + + found |= !!ccmatch(p, chr, &r); + if (r) { + p = r; + continue; + } + } else if (c == '\\') + c = *p++; + if (*p == '-' && p[1] != ']') { + p++; + if (*p == '\\') + p++; + if (chr >= c && chr <= *p) + found = 1; + p++; + } else { + if (chr == c) + found = 1; + } + } while ((c = *p++) != ']'); + if (found == invert) + return 0; + q++; + break; + } +dft: default: + if (*q++ != c) + return 0; + break; + } + } +breakloop: + if (*q != '\0') + return 0; + return 1; +} +#endif + + + +/* + * Remove any CTLESC characters from a string. + */ + +char * +_rmescapes(char *str, int flag) +{ + char *p, *q, *r; + int notescaped; + int globbing; + + p = strpbrk(str, qchars); + if (!p) { + return str; + } + q = p; + r = str; + if (flag & RMESCAPE_ALLOC) { + size_t len = p - str; + size_t fulllen = len + strlen(p) + 1; + + if (flag & RMESCAPE_GROW) { + int strloc = str - (char *)stackblock(); + + r = makestrspace(fulllen, expdest); + str = (char *)stackblock() + strloc; + p = str + len; + } else if (flag & RMESCAPE_HEAP) { + r = ckmalloc(fulllen); + } else { + r = stalloc(fulllen); + } + q = r; + if (len > 0) { + q = mempcpy(q, str, len); + } + } + globbing = flag & RMESCAPE_GLOB; + notescaped = globbing; + while (*p) { + if (*p == (char)CTLQUOTEMARK) { + p++; + notescaped = globbing; + continue; + } + if (*p == '\\') { + /* naked back slash */ + notescaped = 0; + goto copy; + } + if (*p == (char)CTLESC) { + p++; + if (notescaped) + *q++ = '\\'; + } + notescaped = globbing; +copy: + *q++ = *p++; + } + *q = '\0'; + if (flag & RMESCAPE_GROW) { + expdest = r; + STADJUST(q - r + 1, expdest); + } + return r; +} + + + +/* + * See if a pattern matches in a case statement. + */ + +int +casematch(union node *pattern, char *val) +{ + struct stackmark smark; + int result; + + setstackmark(&smark); + argbackq = pattern->narg.backquote; + STARTSTACKSTR(expdest); + argstr(pattern->narg.text, EXP_TILDE | EXP_CASE); + ifsfree(); + result = patmatch(stackblock(), val); + popstackmark(&smark); + return result; +} + +/* + * Our own itoa(). + */ + +static size_t cvtnum(intmax_t num, int flags) +{ + int len = max_int_length(sizeof(num)); + char buf[len]; + + len = fmtstr(buf, len, "%" PRIdMAX, num); + return memtodest(buf, len, flags); +} + +STATIC void +varunset(const char *end, const char *var, const char *umsg, int varflags) +{ + const char *msg; + const char *tail; + + tail = nullstr; + msg = "parameter not set"; + if (umsg) { + if (*end == (char)CTLENDVAR) { + if (varflags & VSNUL) + tail = " or null"; + } else + msg = umsg; + } + sh_error("%.*s: %s%s", end - var - 1, var, msg, tail); +} + +#ifdef mkinit + +INCLUDE "expand.h" + +EXITRESET { + ifsfree(); +} + +#endif diff --git a/bin/dash/src/expand.h b/bin/dash/src/expand.h new file mode 100644 index 00000000..c44b8481 --- /dev/null +++ b/bin/dash/src/expand.h @@ -0,0 +1,83 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)expand.h 8.2 (Berkeley) 5/4/95 + */ + +#include <inttypes.h> + +struct strlist { + struct strlist *next; + char *text; +}; + + +struct arglist { + struct strlist *list; + struct strlist **lastp; +}; + +/* + * expandarg() flags + */ +#define EXP_FULL 0x1 /* perform word splitting & file globbing */ +#define EXP_TILDE 0x2 /* do normal tilde expansion */ +#define EXP_VARTILDE 0x4 /* expand tildes in an assignment */ +#define EXP_REDIR 0x8 /* file glob for a redirection (1 match only) */ +#define EXP_CASE 0x10 /* keeps quotes around for CASE pattern */ +#define EXP_VARTILDE2 0x40 /* expand tildes after colons only */ +#define EXP_WORD 0x80 /* expand word in parameter expansion */ +#define EXP_QUOTED 0x100 /* expand word in double quotes */ +#define EXP_KEEPNUL 0x200 /* do not skip NUL characters */ +#define EXP_DISCARD 0x400 /* discard result of expansion */ + + +union node; +void expandarg(union node *, struct arglist *, int); +#define rmescapes(p) _rmescapes((p), 0) +char *_rmescapes(char *, int); +int casematch(union node *, char *); +void recordregion(int, int, int); +void removerecordregions(int); +void ifsbreakup(char *, int, struct arglist *); +void ifsfree(void); + +/* From arith.y */ +intmax_t arith(const char *); +int expcmd(int , char **); +#ifdef USE_LEX +void arith_lex_reset(void); +#else +#define arith_lex_reset() +#endif +int yylex(void); diff --git a/bin/dash/src/funcs/cmv b/bin/dash/src/funcs/cmv new file mode 100644 index 00000000..91a67c53 --- /dev/null +++ b/bin/dash/src/funcs/cmv @@ -0,0 +1,47 @@ +# Copyright (c) 1991, 1993 +# The Regents of the University of California. All rights reserved. +# Copyright (c) 1997-2005 +# Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. +# +# This code is derived from software contributed to Berkeley by +# Kenneth Almquist. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# 3. Neither the name of the University nor the names of its contributors +# may be used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# @(#)cmv 8.2 (Berkeley) 5/4/95 + +# Conditional move--don't replace an existing file. + +cmv() { + if test $# != 2 + then echo "cmv: arg count" + return 2 + fi + if test -f "$2" -o -w "$2" + then echo "$2 exists" + return 2 + fi + /bin/mv "$1" "$2" +} diff --git a/bin/dash/src/funcs/dirs b/bin/dash/src/funcs/dirs new file mode 100644 index 00000000..5f6ce635 --- /dev/null +++ b/bin/dash/src/funcs/dirs @@ -0,0 +1,71 @@ +# Copyright (c) 1991, 1993 +# The Regents of the University of California. All rights reserved. +# Copyright (c) 1997-2005 +# Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. +# +# This code is derived from software contributed to Berkeley by +# Kenneth Almquist. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# 3. Neither the name of the University nor the names of its contributors +# may be used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# @(#)dirs 8.2 (Berkeley) 5/4/95 + +# pushd, popd, and dirs --- written by Chris Bertin +# Pixel Computer Inc. ...!wjh12!pixel!pixutl!chris +# as modified by Patrick Elam of GTRI and Kenneth Almquist at UW + +pushd () { + SAVE=`pwd` + if [ "$1" = "" ] + then if [ "$DSTACK" = "" ] + then echo "pushd: directory stack empty." + return 1 + fi + set $DSTACK + cd $1 || return + shift 1 + DSTACK="$*" + else cd $1 > /dev/null || return + fi + DSTACK="$SAVE $DSTACK" + dirs +} + +popd () { + if [ "$DSTACK" = "" ] + then echo "popd: directory stack empty." + return 1 + fi + set $DSTACK + cd $1 + shift + DSTACK=$* + dirs +} + +dirs () { + echo "`pwd` $DSTACK" + return 0 +} diff --git a/bin/dash/src/funcs/kill b/bin/dash/src/funcs/kill new file mode 100644 index 00000000..c5df95f5 --- /dev/null +++ b/bin/dash/src/funcs/kill @@ -0,0 +1,47 @@ +# Copyright (c) 1991, 1993 +# The Regents of the University of California. All rights reserved. +# Copyright (c) 1997-2005 +# Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. +# +# This code is derived from software contributed to Berkeley by +# Kenneth Almquist. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# 3. Neither the name of the University nor the names of its contributors +# may be used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# @(#)kill 8.2 (Berkeley) 5/4/95 + +# Convert job names to process ids and then run /bin/kill. + +kill() { + local args x + args= + for x in "$@" + do case $x in + %*) x=`jobid "$x"` ;; + esac + args="$args $x" + done + /bin/kill $args +} diff --git a/bin/dash/src/funcs/login b/bin/dash/src/funcs/login new file mode 100644 index 00000000..215e5352 --- /dev/null +++ b/bin/dash/src/funcs/login @@ -0,0 +1,36 @@ +# Copyright (c) 1991, 1993 +# The Regents of the University of California. All rights reserved. +# Copyright (c) 1997-2005 +# Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. +# +# This code is derived from software contributed to Berkeley by +# Kenneth Almquist. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# 3. Neither the name of the University nor the names of its contributors +# may be used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# @(#)login 8.2 (Berkeley) 5/4/95 + +# replaces the login builtin in the BSD shell +login () exec login "$@" diff --git a/bin/dash/src/funcs/newgrp b/bin/dash/src/funcs/newgrp new file mode 100644 index 00000000..ec0e7e5a --- /dev/null +++ b/bin/dash/src/funcs/newgrp @@ -0,0 +1,35 @@ +# Copyright (c) 1991, 1993 +# The Regents of the University of California. All rights reserved. +# Copyright (c) 1997-2005 +# Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. +# +# This code is derived from software contributed to Berkeley by +# Kenneth Almquist. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# 3. Neither the name of the University nor the names of its contributors +# may be used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# @(#)newgrp 8.2 (Berkeley) 5/4/95 + +newgrp() exec newgrp "$@" diff --git a/bin/dash/src/funcs/popd b/bin/dash/src/funcs/popd new file mode 100644 index 00000000..7bccf50d --- /dev/null +++ b/bin/dash/src/funcs/popd @@ -0,0 +1,71 @@ +# Copyright (c) 1991, 1993 +# The Regents of the University of California. All rights reserved. +# Copyright (c) 1997-2005 +# Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. +# +# This code is derived from software contributed to Berkeley by +# Kenneth Almquist. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# 3. Neither the name of the University nor the names of its contributors +# may be used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# @(#)popd 8.2 (Berkeley) 5/4/95 + +# pushd, popd, and dirs --- written by Chris Bertin +# Pixel Computer Inc. ...!wjh12!pixel!pixutl!chris +# as modified by Patrick Elam of GTRI and Kenneth Almquist at UW + +pushd () { + SAVE=`pwd` + if [ "$1" = "" ] + then if [ "$DSTACK" = "" ] + then echo "pushd: directory stack empty." + return 1 + fi + set $DSTACK + cd $1 || return + shift 1 + DSTACK="$*" + else cd $1 > /dev/null || return + fi + DSTACK="$SAVE $DSTACK" + dirs +} + +popd () { + if [ "$DSTACK" = "" ] + then echo "popd: directory stack empty." + return 1 + fi + set $DSTACK + cd $1 + shift + DSTACK=$* + dirs +} + +dirs () { + echo "`pwd` $DSTACK" + return 0 +} diff --git a/bin/dash/src/funcs/pushd b/bin/dash/src/funcs/pushd new file mode 100644 index 00000000..19ac8e08 --- /dev/null +++ b/bin/dash/src/funcs/pushd @@ -0,0 +1,71 @@ +# Copyright (c) 1991, 1993 +# The Regents of the University of California. All rights reserved. +# Copyright (c) 1997-2005 +# Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. +# +# This code is derived from software contributed to Berkeley by +# Kenneth Almquist. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# 3. Neither the name of the University nor the names of its contributors +# may be used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# @(#)pushd 8.2 (Berkeley) 5/4/95 + +# pushd, popd, and dirs --- written by Chris Bertin +# Pixel Computer Inc. ...!wjh12!pixel!pixutl!chris +# as modified by Patrick Elam of GTRI and Kenneth Almquist at UW + +pushd () { + SAVE=`pwd` + if [ "$1" = "" ] + then if [ "$DSTACK" = "" ] + then echo "pushd: directory stack empty." + return 1 + fi + set $DSTACK + cd $1 || return + shift 1 + DSTACK="$*" + else cd $1 > /dev/null || return + fi + DSTACK="$SAVE $DSTACK" + dirs +} + +popd () { + if [ "$DSTACK" = "" ] + then echo "popd: directory stack empty." + return 1 + fi + set $DSTACK + cd $1 + shift + DSTACK=$* + dirs +} + +dirs () { + echo "`pwd` $DSTACK" + return 0 +} diff --git a/bin/dash/src/funcs/suspend b/bin/dash/src/funcs/suspend new file mode 100644 index 00000000..44844678 --- /dev/null +++ b/bin/dash/src/funcs/suspend @@ -0,0 +1,39 @@ +# Copyright (c) 1991, 1993 +# The Regents of the University of California. All rights reserved. +# Copyright (c) 1997-2005 +# Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. +# +# This code is derived from software contributed to Berkeley by +# Kenneth Almquist. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# 3. Neither the name of the University nor the names of its contributors +# may be used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# @(#)suspend 8.2 (Berkeley) 5/4/95 + +suspend() { + local - + set +j + kill -TSTP 0 +} diff --git a/bin/dash/src/histedit.c b/bin/dash/src/histedit.c new file mode 100644 index 00000000..1b7ad238 --- /dev/null +++ b/bin/dash/src/histedit.c @@ -0,0 +1,504 @@ +/*- + * Copyright (c) 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/param.h> +#ifdef HAVE_PATHS_H +#include <paths.h> +#endif +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <getopt.h> +/* + * Editline and history functions (and glue). + */ +#include "shell.h" +#include "parser.h" +#include "var.h" +#include "options.h" +#include "main.h" +#include "output.h" +#include "mystring.h" +#include "error.h" +#ifndef SMALL +#include "myhistedit.h" +#include "eval.h" +#include "memalloc.h" + +#define MAXHISTLOOPS 4 /* max recursions through fc */ +#define DEFEDITOR "ed" /* default editor *should* be $EDITOR */ + +History *hist; /* history cookie */ +EditLine *el; /* editline cookie */ +int displayhist; +static FILE *el_in, *el_out; + +STATIC const char *fc_replace(const char *, char *, char *); + +#ifdef DEBUG +extern FILE *tracefile; +#endif + +/* + * Set history and editing status. Called whenever the status may + * have changed (figures out what to do). + */ +void +histedit(void) +{ + FILE *el_err; + +#define editing (Eflag || Vflag) + + if (iflag) { + if (!hist) { + /* + * turn history on + */ + INTOFF; + hist = history_init(); + INTON; + + if (hist != NULL) + sethistsize(histsizeval()); + else + out2str("sh: can't initialize history\n"); + } + if (editing && !el && isatty(0)) { /* && isatty(2) ??? */ + /* + * turn editing on + */ + INTOFF; + if (el_in == NULL) + el_in = fdopen(0, "r"); + if (el_out == NULL) + el_out = fdopen(2, "w"); + if (el_in == NULL || el_out == NULL) + goto bad; + el_err = el_out; +#if DEBUG + if (tracefile) + el_err = tracefile; +#endif + el = el_init(arg0, el_in, el_out, el_err); + if (el != NULL) { + if (hist) + el_set(el, EL_HIST, history, hist); + el_set(el, EL_PROMPT, getprompt); + el_set(el, EL_RPROMPT, getrprompt); +#ifdef HAVE__EL_FN_SH_COMPLETE + el_set(el, EL_ADDFN, "sh-complete", "Filename completion", + _el_fn_sh_complete); +#else + el_set(el, EL_ADDFN, "sh-complete", "Filename completion", + _el_fn_complete); +#endif + } else { +bad: + out2str("sh: can't initialize editing\n"); + } + INTON; + } else if (!editing && el) { + INTOFF; + el_end(el); + el = NULL; + INTON; + } + if (el) { + if (Vflag) + el_set(el, EL_EDITOR, "vi"); + else if (Eflag) + el_set(el, EL_EDITOR, "emacs"); + el_source(el, NULL); + el_set(el, EL_BIND, "^I", "sh-complete", NULL); + } + } else { + INTOFF; + if (el) { /* no editing if not interactive */ + el_end(el); + el = NULL; + } + if (hist) { + history_end(hist); + hist = NULL; + } + INTON; + } +} + + +void +sethistsize(const char *hs) +{ + int histsize; + HistEvent he; + + if (hist != NULL) { + if (hs == NULL || *hs == '\0' || + (histsize = atoi(hs)) < 0) + histsize = 100; + history(hist, &he, H_SETSIZE, histsize); + history(hist, &he, H_SETUNIQUE, 1); + } +} + +void +setterm(const char *term) +{ + if (el != NULL && term != NULL) + if (el_set(el, EL_TERMINAL, term) != 0) { + outfmt(out2, "sh: Can't set terminal type %s\n", term); + outfmt(out2, "sh: Using dumb terminal settings.\n"); + } +} + +/* + * This command is provided since POSIX decided to standardize + * the Korn shell fc command. Oh well... + */ +int +histcmd(int argc, char **argv) +{ + int ch; + const char *editor = NULL; + HistEvent he; + int lflg = 0, nflg = 0, rflg = 0, sflg = 0; + int i, retval; + const char *firststr, *laststr; + int first, last, direction; + char *pat = NULL, *repl; /* ksh "fc old=new" crap */ + static int active = 0; + struct jmploc jmploc; + struct jmploc *volatile savehandler; + char editfile[MAXPATHLEN + 1]; + FILE *efp; +#ifdef __GNUC__ + /* Avoid longjmp clobbering */ + (void) &editor; + (void) &lflg; + (void) &nflg; + (void) &rflg; + (void) &sflg; + (void) &firststr; + (void) &laststr; + (void) &pat; + (void) &repl; + (void) &efp; + (void) &argc; + (void) &argv; +#endif + + if (hist == NULL) + sh_error("history not active"); + + if (argc == 1) + sh_error("missing history argument"); + +#ifdef __GLIBC__ + optind = 0; +#else + optreset = 1; optind = 1; /* initialize getopt */ +#endif + while (not_fcnumber(argv[optind]) && + (ch = getopt(argc, argv, ":e:lnrs")) != -1) + switch ((char)ch) { + case 'e': + editor = optionarg; + break; + case 'l': + lflg = 1; + break; + case 'n': + nflg = 1; + break; + case 'r': + rflg = 1; + break; + case 's': + sflg = 1; + break; + case ':': + sh_error("option -%c expects argument", optopt); + /* NOTREACHED */ + case '?': + default: + sh_error("unknown option: -%c", optopt); + /* NOTREACHED */ + } + argc -= optind, argv += optind; + + /* + * If executing... + */ + if (lflg == 0 || editor || sflg) { + lflg = 0; /* ignore */ + editfile[0] = '\0'; + /* + * Catch interrupts to reset active counter and + * cleanup temp files. + */ + if (setjmp(jmploc.loc)) { + active = 0; + if (*editfile) + unlink(editfile); + handler = savehandler; + longjmp(handler->loc, 1); + } + savehandler = handler; + handler = &jmploc; + if (++active > MAXHISTLOOPS) { + active = 0; + displayhist = 0; + sh_error("called recursively too many times"); + } + /* + * Set editor. + */ + if (sflg == 0) { + if (editor == NULL && + (editor = bltinlookup("FCEDIT")) == NULL && + (editor = bltinlookup("EDITOR")) == NULL) + editor = DEFEDITOR; + if (editor[0] == '-' && editor[1] == '\0') { + sflg = 1; /* no edit */ + editor = NULL; + } + } + } + + /* + * If executing, parse [old=new] now + */ + if (lflg == 0 && argc > 0 && + ((repl = strchr(argv[0], '=')) != NULL)) { + pat = argv[0]; + *repl++ = '\0'; + argc--, argv++; + } + /* + * determine [first] and [last] + */ + switch (argc) { + case 0: + firststr = lflg ? "-16" : "-1"; + laststr = "-1"; + break; + case 1: + firststr = argv[0]; + laststr = lflg ? "-1" : argv[0]; + break; + case 2: + firststr = argv[0]; + laststr = argv[1]; + break; + default: + sh_error("too many args"); + /* NOTREACHED */ + } + /* + * Turn into event numbers. + */ + first = str_to_event(firststr, 0); + last = str_to_event(laststr, 1); + + if (rflg) { + i = last; + last = first; + first = i; + } + /* + * XXX - this should not depend on the event numbers + * always increasing. Add sequence numbers or offset + * to the history element in next (diskbased) release. + */ + direction = first < last ? H_PREV : H_NEXT; + + /* + * If editing, grab a temp file. + */ + if (editor) { + int fd; + INTOFF; /* easier */ + sprintf(editfile, "%s_shXXXXXX", _PATH_TMP); + if ((fd = mkstemp(editfile)) < 0) + sh_error("can't create temporary file %s", editfile); + if ((efp = fdopen(fd, "w")) == NULL) { + close(fd); + sh_error("can't allocate stdio buffer for temp"); + } + } + + /* + * Loop through selected history events. If listing or executing, + * do it now. Otherwise, put into temp file and call the editor + * after. + * + * The history interface needs rethinking, as the following + * convolutions will demonstrate. + */ + history(hist, &he, H_FIRST); + retval = history(hist, &he, H_NEXT_EVENT, first); + for (;retval != -1; retval = history(hist, &he, direction)) { + if (lflg) { + if (!nflg) + out1fmt("%5d ", he.num); + out1str(he.str); + } else { + const char *s = pat ? + fc_replace(he.str, pat, repl) : he.str; + + if (sflg) { + if (displayhist) { + out2str(s); + } + + evalstring(s, 0); + if (displayhist && hist) { + /* + * XXX what about recursive and + * relative histnums. + */ + history(hist, &he, H_ENTER, s); + } + } else + fputs(s, efp); + } + /* + * At end? (if we were to lose last, we'd sure be + * messed up). + */ + if (he.num == last) + break; + } + if (editor) { + char *editcmd; + + fclose(efp); + editcmd = stalloc(strlen(editor) + strlen(editfile) + 2); + sprintf(editcmd, "%s %s", editor, editfile); + /* XXX - should use no JC command */ + evalstring(editcmd, 0); + INTON; + readcmdfile(editfile); /* XXX - should read back - quick tst */ + unlink(editfile); + } + + if (lflg == 0 && active > 0) + --active; + if (displayhist) + displayhist = 0; + return 0; +} + +STATIC const char * +fc_replace(const char *s, char *p, char *r) +{ + char *dest; + int plen = strlen(p); + + STARTSTACKSTR(dest); + while (*s) { + if (*s == *p && strncmp(s, p, plen) == 0) { + while (*r) + STPUTC(*r++, dest); + s += plen; + *p = '\0'; /* so no more matches */ + } else + STPUTC(*s++, dest); + } + STACKSTRNUL(dest); + dest = grabstackstr(dest); + + return (dest); +} + +int +not_fcnumber(char *s) +{ + if (s == NULL) + return 0; + if (*s == '-') + s++; + return (!is_number(s)); +} + +int +str_to_event(const char *str, int last) +{ + HistEvent he; + const char *s = str; + int relative = 0; + int i, retval; + + retval = history(hist, &he, H_FIRST); + switch (*s) { + case '-': + relative = 1; + /*FALLTHROUGH*/ + case '+': + s++; + } + if (is_number(s)) { + i = atoi(s); + if (relative) { + while (retval != -1 && i--) { + retval = history(hist, &he, H_NEXT); + } + if (retval == -1) + retval = history(hist, &he, H_LAST); + } else { + retval = history(hist, &he, H_NEXT_EVENT, i); + if (retval == -1) { + /* + * the notion of first and last is + * backwards to that of the history package + */ + retval = history(hist, &he, + last ? H_FIRST : H_LAST); + } + } + if (retval == -1) + sh_error("history number %s not found (internal error)", + str); + } else { + /* + * pattern + */ + retval = history(hist, &he, H_PREV_STR, str); + if (retval == -1) + sh_error("history pattern not found: %s", str); + } + return (he.num); +} +#endif diff --git a/bin/dash/src/init.h b/bin/dash/src/init.h new file mode 100644 index 00000000..d56fb28e --- /dev/null +++ b/bin/dash/src/init.h @@ -0,0 +1,40 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)init.h 8.2 (Berkeley) 5/4/95 + */ + +void init(void); +void exitreset(void); +void forkreset(void); +void reset(void); diff --git a/bin/dash/src/input.c b/bin/dash/src/input.c new file mode 100644 index 00000000..4167bd18 --- /dev/null +++ b/bin/dash/src/input.c @@ -0,0 +1,498 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <stdio.h> /* defines BUFSIZ */ +#include <fcntl.h> +#include <unistd.h> +#include <stdlib.h> +#include <string.h> + +/* + * This file implements the input routines used by the parser. + */ + +#include "eval.h" +#include "shell.h" +#include "redir.h" +#include "syntax.h" +#include "input.h" +#include "output.h" +#include "options.h" +#include "memalloc.h" +#include "error.h" +#include "alias.h" +#include "parser.h" +#include "main.h" +#ifndef SMALL +#include "myhistedit.h" +#endif + +#define EOF_NLEFT -99 /* value of parsenleft when EOF pushed back */ +#define IBUFSIZ (BUFSIZ + 1) + + +MKINIT struct parsefile basepf; /* top level input file */ +MKINIT char basebuf[IBUFSIZ]; /* buffer for top level input file */ +struct parsefile *parsefile = &basepf; /* current input file */ +int whichprompt; /* 1 == PS1, 2 == PS2 */ + +STATIC void pushfile(void); +static int preadfd(void); +static void setinputfd(int fd, int push); +static int preadbuffer(void); + +#ifdef mkinit +INCLUDE <stdio.h> +INCLUDE <unistd.h> +INCLUDE "input.h" +INCLUDE "error.h" + +INIT { + basepf.nextc = basepf.buf = basebuf; + basepf.linno = 1; +} + +RESET { + /* clear input buffer */ + basepf.lleft = basepf.nleft = 0; + popallfiles(); +} + +FORKRESET { + popallfiles(); + if (parsefile->fd > 0) { + close(parsefile->fd); + parsefile->fd = 0; + } +} +#endif + + +/* + * Read a character from the script, returning PEOF on end of file. + * Nul characters in the input are silently discarded. + */ + +int +pgetc(void) +{ + int c; + + if (parsefile->unget) + return parsefile->lastc[--parsefile->unget]; + + if (--parsefile->nleft >= 0) + c = (signed char)*parsefile->nextc++; + else + c = preadbuffer(); + + parsefile->lastc[1] = parsefile->lastc[0]; + parsefile->lastc[0] = c; + + return c; +} + + +/* + * Same as pgetc(), but ignores PEOA. + */ + +int +pgetc2() +{ + int c; + do { + c = pgetc(); + } while (c == PEOA); + return c; +} + + +static int +preadfd(void) +{ + int nr; + char *buf = parsefile->buf; + parsefile->nextc = buf; + +retry: +#ifndef SMALL + if (parsefile->fd == 0 && el) { + static const char *rl_cp; + static int el_len; + + if (rl_cp == NULL) + rl_cp = el_gets(el, &el_len); + if (rl_cp == NULL) + nr = 0; + else { + nr = el_len; + if (nr > IBUFSIZ - 1) + nr = IBUFSIZ - 1; + memcpy(buf, rl_cp, nr); + if (nr != el_len) { + el_len -= nr; + rl_cp += nr; + } else + rl_cp = 0; + } + + } else +#endif + nr = read(parsefile->fd, buf, IBUFSIZ - 1); + + + if (nr < 0) { + if (errno == EINTR) + goto retry; + if (parsefile->fd == 0 && errno == EWOULDBLOCK) { + int flags = fcntl(0, F_GETFL, 0); + if (flags >= 0 && flags & O_NONBLOCK) { + flags &=~ O_NONBLOCK; + if (fcntl(0, F_SETFL, flags) >= 0) { + out2str("sh: turning off NDELAY mode\n"); + goto retry; + } + } + } + } + return nr; +} + +/* + * Refill the input buffer and return the next input character: + * + * 1) If a string was pushed back on the input, pop it; + * 2) If an EOF was pushed back (parsenleft == EOF_NLEFT) or we are reading + * from a string so we can't refill the buffer, return EOF. + * 3) If the is more stuff in this buffer, use it else call read to fill it. + * 4) Process input up to the next newline, deleting nul characters. + */ + +static int preadbuffer(void) +{ + char *q; + int more; +#ifndef SMALL + int something; +#endif + char savec; + + if (unlikely(parsefile->strpush)) { + if ( + parsefile->nleft == -1 && + parsefile->strpush->ap && + parsefile->nextc[-1] != ' ' && + parsefile->nextc[-1] != '\t' + ) { + return PEOA; + } + popstring(); + return pgetc(); + } + if (unlikely(parsefile->nleft == EOF_NLEFT || + parsefile->buf == NULL)) + return PEOF; + flushall(); + + more = parsefile->lleft; + if (more <= 0) { +again: + if ((more = preadfd()) <= 0) { + parsefile->lleft = parsefile->nleft = EOF_NLEFT; + return PEOF; + } + } + + q = parsefile->nextc; + + /* delete nul characters */ +#ifndef SMALL + something = 0; +#endif + for (;;) { + int c; + + more--; + c = *q; + + if (!c) + memmove(q, q + 1, more); + else { + q++; + + if (c == '\n') { + parsefile->nleft = q - parsefile->nextc - 1; + break; + } + +#ifndef SMALL + switch (c) { + default: + something = 1; + /* fall through */ + case '\t': + case ' ': + break; + } +#endif + } + + if (more <= 0) { + parsefile->nleft = q - parsefile->nextc - 1; + if (parsefile->nleft < 0) + goto again; + break; + } + } + parsefile->lleft = more; + + savec = *q; + *q = '\0'; + +#ifndef SMALL + if (parsefile->fd == 0 && hist && something) { + HistEvent he; + INTOFF; + history(hist, &he, whichprompt == 1? H_ENTER : H_APPEND, + parsefile->nextc); + INTON; + } +#endif + + if (vflag) { + out2str(parsefile->nextc); +#ifdef FLUSHERR + flushout(out2); +#endif + } + + *q = savec; + + return (signed char)*parsefile->nextc++; +} + +/* + * Undo a call to pgetc. Only two characters may be pushed back. + * PEOF may be pushed back. + */ + +void +pungetc(void) +{ + parsefile->unget++; +} + +/* + * Push a string back onto the input at this current parsefile level. + * We handle aliases this way. + */ +void +pushstring(char *s, void *ap) +{ + struct strpush *sp; + size_t len; + + len = strlen(s); + INTOFF; +/*dprintf("*** calling pushstring: %s, %d\n", s, len);*/ + if (parsefile->strpush) { + sp = ckmalloc(sizeof (struct strpush)); + sp->prev = parsefile->strpush; + parsefile->strpush = sp; + } else + sp = parsefile->strpush = &(parsefile->basestrpush); + sp->prevstring = parsefile->nextc; + sp->prevnleft = parsefile->nleft; + sp->unget = parsefile->unget; + memcpy(sp->lastc, parsefile->lastc, sizeof(sp->lastc)); + sp->ap = (struct alias *)ap; + if (ap) { + ((struct alias *)ap)->flag |= ALIASINUSE; + sp->string = s; + } + parsefile->nextc = s; + parsefile->nleft = len; + parsefile->unget = 0; + INTON; +} + +void +popstring(void) +{ + struct strpush *sp = parsefile->strpush; + + INTOFF; + if (sp->ap) { + if (parsefile->nextc[-1] == ' ' || + parsefile->nextc[-1] == '\t') { + checkkwd |= CHKALIAS; + } + if (sp->string != sp->ap->val) { + ckfree(sp->string); + } + sp->ap->flag &= ~ALIASINUSE; + if (sp->ap->flag & ALIASDEAD) { + unalias(sp->ap->name); + } + } + parsefile->nextc = sp->prevstring; + parsefile->nleft = sp->prevnleft; + parsefile->unget = sp->unget; + memcpy(parsefile->lastc, sp->lastc, sizeof(sp->lastc)); +/*dprintf("*** calling popstring: restoring to '%s'\n", parsenextc);*/ + parsefile->strpush = sp->prev; + if (sp != &(parsefile->basestrpush)) + ckfree(sp); + INTON; +} + +/* + * Set the input to take input from a file. If push is set, push the + * old input onto the stack first. + */ + +int +setinputfile(const char *fname, int flags) +{ + int fd; + + INTOFF; + if ((fd = open64(fname, O_RDONLY)) < 0) { + if (flags & INPUT_NOFILE_OK) + goto out; + exitstatus = 127; + exerror(EXERROR, "Can't open %s", fname); + } + if (fd < 10) + fd = savefd(fd, fd); + setinputfd(fd, flags & INPUT_PUSH_FILE); +out: + INTON; + return fd; +} + + +/* + * Like setinputfile, but takes an open file descriptor. Call this with + * interrupts off. + */ + +static void +setinputfd(int fd, int push) +{ + if (push) { + pushfile(); + parsefile->buf = 0; + } + parsefile->fd = fd; + if (parsefile->buf == NULL) + parsefile->buf = ckmalloc(IBUFSIZ); + parsefile->lleft = parsefile->nleft = 0; + plinno = 1; +} + + +/* + * Like setinputfile, but takes input from a string. + */ + +void +setinputstring(char *string) +{ + INTOFF; + pushfile(); + parsefile->nextc = string; + parsefile->nleft = strlen(string); + parsefile->buf = NULL; + plinno = 1; + INTON; +} + + + +/* + * To handle the "." command, a stack of input files is used. Pushfile + * adds a new entry to the stack and popfile restores the previous level. + */ + +STATIC void +pushfile(void) +{ + struct parsefile *pf; + + pf = (struct parsefile *)ckmalloc(sizeof (struct parsefile)); + pf->prev = parsefile; + pf->fd = -1; + pf->strpush = NULL; + pf->basestrpush.prev = NULL; + pf->unget = 0; + parsefile = pf; +} + + +void +popfile(void) +{ + struct parsefile *pf = parsefile; + + INTOFF; + if (pf->fd >= 0) + close(pf->fd); + if (pf->buf) + ckfree(pf->buf); + while (pf->strpush) + popstring(); + parsefile = pf->prev; + ckfree(pf); + INTON; +} + + +void unwindfiles(struct parsefile *stop) +{ + while (parsefile != stop) + popfile(); +} + + +/* + * Return to top level. + */ + +void +popallfiles(void) +{ + unwindfiles(&basepf); +} diff --git a/bin/dash/src/input.h b/bin/dash/src/input.h new file mode 100644 index 00000000..8acc6e9f --- /dev/null +++ b/bin/dash/src/input.h @@ -0,0 +1,101 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)input.h 8.2 (Berkeley) 5/4/95 + */ + +/* PEOF (the end of file marker) is defined in syntax.h */ + +enum { + INPUT_PUSH_FILE = 1, + INPUT_NOFILE_OK = 2, +}; + +struct alias; + +struct strpush { + struct strpush *prev; /* preceding string on stack */ + char *prevstring; + int prevnleft; + struct alias *ap; /* if push was associated with an alias */ + char *string; /* remember the string since it may change */ + + /* Remember last two characters for pungetc. */ + int lastc[2]; + + /* Number of outstanding calls to pungetc. */ + int unget; +}; + +/* + * The parsefile structure pointed to by the global variable parsefile + * contains information about the current file being read. + */ + +struct parsefile { + struct parsefile *prev; /* preceding file on stack */ + int linno; /* current line */ + int fd; /* file descriptor (or -1 if string) */ + int nleft; /* number of chars left in this line */ + int lleft; /* number of chars left in this buffer */ + char *nextc; /* next char in buffer */ + char *buf; /* input buffer */ + struct strpush *strpush; /* for pushing strings at this level */ + struct strpush basestrpush; /* so pushing one is fast */ + + /* Remember last two characters for pungetc. */ + int lastc[2]; + + /* Number of outstanding calls to pungetc. */ + int unget; +}; + +extern struct parsefile *parsefile; + +/* + * The input line number. Input.c just defines this variable, and saves + * and restores it when files are pushed and popped. The user of this + * package must set its value. + */ +#define plinno (parsefile->linno) + +int pgetc(void); +int pgetc2(void); +void pungetc(void); +void pushstring(char *, void *); +void popstring(void); +int setinputfile(const char *, int); +void setinputstring(char *); +void popfile(void); +void unwindfiles(struct parsefile *); +void popallfiles(void); diff --git a/bin/dash/src/jobs.c b/bin/dash/src/jobs.c new file mode 100644 index 00000000..5104a5e5 --- /dev/null +++ b/bin/dash/src/jobs.c @@ -0,0 +1,1545 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <fcntl.h> +#include <signal.h> +#include <unistd.h> +#include <stdlib.h> +#ifdef HAVE_PATHS_H +#include <paths.h> +#endif +#include <sys/types.h> +#include <sys/param.h> +#ifdef BSD +#include <sys/wait.h> +#include <sys/time.h> +#include <sys/resource.h> +#endif +#include <sys/ioctl.h> + +#include "shell.h" +#if JOBS +#include <termios.h> +#undef CEOF /* syntax.h redefines this */ +#endif +#include "exec.h" +#include "eval.h" +#include "init.h" +#include "redir.h" +#include "show.h" +#include "main.h" +#include "parser.h" +#include "nodes.h" +#include "jobs.h" +#include "options.h" +#include "trap.h" +#include "syntax.h" +#include "input.h" +#include "output.h" +#include "memalloc.h" +#include "error.h" +#include "mystring.h" +#include "system.h" + +/* mode flags for set_curjob */ +#define CUR_DELETE 2 +#define CUR_RUNNING 1 +#define CUR_STOPPED 0 + +/* mode flags for dowait */ +#define DOWAIT_NONBLOCK 0 +#define DOWAIT_BLOCK 1 +#define DOWAIT_WAITCMD 2 + +/* array of jobs */ +static struct job *jobtab; +/* size of array */ +static unsigned njobs; +/* pid of last background process */ +pid_t backgndpid; + +#if JOBS +/* pgrp of shell on invocation */ +static int initialpgrp; +/* control terminal */ +static int ttyfd = -1; +#endif + +/* current job */ +static struct job *curjob; + +/* Set if we are in the vforked child */ +int vforked; + +STATIC void set_curjob(struct job *, unsigned); +STATIC int jobno(const struct job *); +STATIC int sprint_status(char *, int, int); +STATIC void freejob(struct job *); +STATIC struct job *getjob(const char *, int); +STATIC struct job *growjobtab(void); +STATIC void forkchild(struct job *, union node *, int); +STATIC void forkparent(struct job *, union node *, int, pid_t); +STATIC int dowait(int, struct job *); +#ifdef SYSV +STATIC int onsigchild(void); +#endif +STATIC int waitproc(int, int *); +STATIC char *commandtext(union node *); +STATIC void cmdtxt(union node *); +STATIC void cmdlist(union node *, int); +STATIC void cmdputs(const char *); +STATIC void showpipe(struct job *, struct output *); +STATIC int getstatus(struct job *); + +#if JOBS +static int restartjob(struct job *, int); +static void xtcsetpgrp(int, pid_t); +#endif + +STATIC void +set_curjob(struct job *jp, unsigned mode) +{ + struct job *jp1; + struct job **jpp, **curp; + + /* first remove from list */ + jpp = curp = &curjob; + do { + jp1 = *jpp; + if (jp1 == jp) + break; + jpp = &jp1->prev_job; + } while (1); + *jpp = jp1->prev_job; + + /* Then re-insert in correct position */ + jpp = curp; + switch (mode) { + default: +#ifdef DEBUG + abort(); +#endif + case CUR_DELETE: + /* job being deleted */ + break; + case CUR_RUNNING: + /* newly created job or backgrounded job, + put after all stopped jobs. */ + do { + jp1 = *jpp; + if (!JOBS || !jp1 || jp1->state != JOBSTOPPED) + break; + jpp = &jp1->prev_job; + } while (1); + /* FALLTHROUGH */ +#if JOBS + case CUR_STOPPED: +#endif + /* newly stopped job - becomes curjob */ + jp->prev_job = *jpp; + *jpp = jp; + break; + } +} + +#if JOBS +/* + * Turn job control on and off. + * + * Note: This code assumes that the third arg to ioctl is a character + * pointer, which is true on Berkeley systems but not System V. Since + * System V doesn't have job control yet, this isn't a problem now. + * + * Called with interrupts off. + */ + +int jobctl; + +void +setjobctl(int on) +{ + int fd; + int pgrp; + + if (on == jobctl || rootshell == 0) + return; + if (on) { + int ofd; + ofd = fd = open64(_PATH_TTY, O_RDWR); + if (fd < 0) { + fd += 3; + while (!isatty(fd)) + if (--fd < 0) + goto out; + } + fd = savefd(fd, ofd); + do { /* while we are in the background */ + if ((pgrp = tcgetpgrp(fd)) < 0) { +out: + sh_warnx("can't access tty; job control turned off"); + mflag = on = 0; + goto close; + } + if (pgrp == getpgrp()) + break; + killpg(0, SIGTTIN); + } while (1); + initialpgrp = pgrp; + + setsignal(SIGTSTP); + setsignal(SIGTTOU); + setsignal(SIGTTIN); + pgrp = rootpid; + setpgid(0, pgrp); + xtcsetpgrp(fd, pgrp); + } else { + /* turning job control off */ + fd = ttyfd; + pgrp = initialpgrp; + xtcsetpgrp(fd, pgrp); + setpgid(0, pgrp); + setsignal(SIGTSTP); + setsignal(SIGTTOU); + setsignal(SIGTTIN); +close: + close(fd); + fd = -1; + } + ttyfd = fd; + jobctl = on; +} +#endif + + +int +killcmd(argc, argv) + int argc; + char **argv; +{ + extern char *signal_names[]; + int signo = -1; + int list = 0; + int i; + pid_t pid; + struct job *jp; + + if (argc <= 1) { +usage: + sh_error( +"Usage: kill [-s sigspec | -signum | -sigspec] [pid | job]... or\n" +"kill -l [exitstatus]" + ); + } + + if (**++argv == '-') { + signo = decode_signal(*argv + 1, 1); + if (signo < 0) { + int c; + + while ((c = nextopt("ls:")) != '\0') + switch (c) { + default: +#ifdef DEBUG + abort(); +#endif + case 'l': + list = 1; + break; + case 's': + signo = decode_signal(optionarg, 1); + if (signo < 0) { + sh_error( + "invalid signal number or name: %s", + optionarg + ); + } + break; + } + argv = argptr; + } else + argv++; + } + + if (!list && signo < 0) + signo = SIGTERM; + + if ((signo < 0 || !*argv) ^ list) { + goto usage; + } + + if (list) { + struct output *out; + + out = out1; + if (!*argv) { + outstr("0\n", out); + for (i = 1; i < NSIG; i++) { + outfmt(out, snlfmt, signal_names[i]); + } + return 0; + } + signo = number(*argv); + if (signo > 128) + signo -= 128; + if (0 < signo && signo < NSIG) + outfmt(out, snlfmt, signal_names[signo]); + else + sh_error("invalid signal number or exit status: %s", + *argv); + return 0; + } + + i = 0; + do { + if (**argv == '%') { + jp = getjob(*argv, 0); + pid = -jp->ps[0].pid; + } else + pid = **argv == '-' ? + -number(*argv + 1) : number(*argv); + if (kill(pid, signo) != 0) { + sh_warnx("%s\n", strerror(errno)); + i = 1; + } + } while (*++argv); + + return i; +} + +STATIC int +jobno(const struct job *jp) +{ + return jp - jobtab + 1; +} + +#if JOBS +int +fgcmd(int argc, char **argv) +{ + struct job *jp; + struct output *out; + int mode; + int retval; + + mode = (**argv == 'f') ? FORK_FG : FORK_BG; + nextopt(nullstr); + argv = argptr; + out = out1; + do { + jp = getjob(*argv, 1); + if (mode == FORK_BG) { + set_curjob(jp, CUR_RUNNING); + outfmt(out, "[%d] ", jobno(jp)); + } + outstr(jp->ps->cmd, out); + showpipe(jp, out); + retval = restartjob(jp, mode); + } while (*argv && *++argv); + return retval; +} + +int bgcmd(int argc, char **argv) +#ifdef HAVE_ALIAS_ATTRIBUTE + __attribute__((__alias__("fgcmd"))); +#else +{ + return fgcmd(argc, argv); +} +#endif + + +STATIC int +restartjob(struct job *jp, int mode) +{ + struct procstat *ps; + int i; + int status; + pid_t pgid; + + INTOFF; + if (jp->state == JOBDONE) + goto out; + jp->state = JOBRUNNING; + pgid = jp->ps->pid; + if (mode == FORK_FG) + xtcsetpgrp(ttyfd, pgid); + killpg(pgid, SIGCONT); + ps = jp->ps; + i = jp->nprocs; + do { + if (WIFSTOPPED(ps->status)) { + ps->status = -1; + } + } while (ps++, --i); +out: + status = (mode == FORK_FG) ? waitforjob(jp) : 0; + INTON; + return status; +} +#endif + +STATIC int +sprint_status(char *os, int status, int sigonly) +{ + char *s = os; + int st; + + st = WEXITSTATUS(status); + if (!WIFEXITED(status)) { +#if JOBS + st = WSTOPSIG(status); + if (!WIFSTOPPED(status)) +#endif + st = WTERMSIG(status); + if (sigonly) { + if (st == SIGINT || st == SIGPIPE) + goto out; +#if JOBS + if (WIFSTOPPED(status)) + goto out; +#endif + } + s = stpncpy(s, strsignal(st), 32); +#ifdef WCOREDUMP + if (WCOREDUMP(status)) { + s = stpcpy(s, " (core dumped)"); + } +#endif + } else if (!sigonly) { + if (st) + s += fmtstr(s, 16, "Done(%d)", st); + else + s = stpcpy(s, "Done"); + } + +out: + return s - os; +} + +static void +showjob(struct output *out, struct job *jp, int mode) +{ + struct procstat *ps; + struct procstat *psend; + int col; + int indent; + char s[80]; + + ps = jp->ps; + + if (mode & SHOW_PGID) { + /* just output process (group) id of pipeline */ + outfmt(out, "%d\n", ps->pid); + return; + } + + col = fmtstr(s, 16, "[%d] ", jobno(jp)); + indent = col; + + if (jp == curjob) + s[col - 2] = '+'; + else if (curjob && jp == curjob->prev_job) + s[col - 2] = '-'; + + if (mode & SHOW_PID) + col += fmtstr(s + col, 16, "%d ", ps->pid); + + psend = ps + jp->nprocs; + + if (jp->state == JOBRUNNING) { + scopy("Running", s + col); + col += strlen("Running"); + } else { + int status = psend[-1].status; +#if JOBS + if (jp->state == JOBSTOPPED) + status = jp->stopstatus; +#endif + col += sprint_status(s + col, status, 0); + } + + goto start; + + do { + /* for each process */ + col = fmtstr(s, 48, " |\n%*c%d ", indent, ' ', ps->pid) - 3; + +start: + outfmt( + out, "%s%*c%s", + s, 33 - col >= 0 ? 33 - col : 0, ' ', ps->cmd + ); + if (!(mode & SHOW_PID)) { + showpipe(jp, out); + break; + } + if (++ps == psend) { + outcslow('\n', out); + break; + } + } while (1); + + jp->changed = 0; + + if (jp->state == JOBDONE) { + TRACE(("showjob: freeing job %d\n", jobno(jp))); + freejob(jp); + } +} + + +int +jobscmd(int argc, char **argv) +{ + int mode, m; + struct output *out; + + mode = 0; + while ((m = nextopt("lp"))) + if (m == 'l') + mode = SHOW_PID; + else + mode = SHOW_PGID; + + out = out1; + argv = argptr; + if (*argv) + do + showjob(out, getjob(*argv,0), mode); + while (*++argv); + else + showjobs(out, mode); + + return 0; +} + + +/* + * Print a list of jobs. If "change" is nonzero, only print jobs whose + * statuses have changed since the last call to showjobs. + */ + +void +showjobs(struct output *out, int mode) +{ + struct job *jp; + + TRACE(("showjobs(%x) called\n", mode)); + + /* If not even one job changed, there is nothing to do */ + dowait(DOWAIT_NONBLOCK, NULL); + + for (jp = curjob; jp; jp = jp->prev_job) { + if (!(mode & SHOW_CHANGED) || jp->changed) + showjob(out, jp, mode); + } +} + +/* + * Mark a job structure as unused. + */ + +STATIC void +freejob(struct job *jp) +{ + struct procstat *ps; + int i; + + INTOFF; + for (i = jp->nprocs, ps = jp->ps ; --i >= 0 ; ps++) { + if (ps->cmd != nullstr) + ckfree(ps->cmd); + } + if (jp->ps != &jp->ps0) + ckfree(jp->ps); + jp->used = 0; + set_curjob(jp, CUR_DELETE); + INTON; +} + + + +int +waitcmd(int argc, char **argv) +{ + struct job *job; + int retval; + struct job *jp; + + nextopt(nullstr); + retval = 0; + + argv = argptr; + if (!*argv) { + /* wait for all jobs */ + for (;;) { + jp = curjob; + while (1) { + if (!jp) { + /* no running procs */ + goto out; + } + if (jp->state == JOBRUNNING) + break; + jp->waited = 1; + jp = jp->prev_job; + } + if (!dowait(DOWAIT_WAITCMD, 0)) + goto sigout; + } + } + + retval = 127; + do { + if (**argv != '%') { + pid_t pid = number(*argv); + job = curjob; + goto start; + do { + if (job->ps[job->nprocs - 1].pid == pid) + break; + job = job->prev_job; +start: + if (!job) + goto repeat; + } while (1); + } else + job = getjob(*argv, 0); + /* loop until process terminated or stopped */ + if (!dowait(DOWAIT_WAITCMD, job)) + goto sigout; + job->waited = 1; + retval = getstatus(job); +repeat: + ; + } while (*++argv); + +out: + return retval; + +sigout: + retval = 128 + pending_sig; + goto out; +} + + + +/* + * Convert a job name to a job structure. + */ + +STATIC struct job * +getjob(const char *name, int getctl) +{ + struct job *jp; + struct job *found; + const char *err_msg = "No such job: %s"; + unsigned num; + int c; + const char *p; + char *(*match)(const char *, const char *); + + jp = curjob; + p = name; + if (!p) + goto currentjob; + + if (*p != '%') + goto err; + + c = *++p; + if (!c) + goto currentjob; + + if (!p[1]) { + if (c == '+' || c == '%') { +currentjob: + err_msg = "No current job"; + goto check; + } else if (c == '-') { + if (jp) + jp = jp->prev_job; + err_msg = "No previous job"; +check: + if (!jp) + goto err; + goto gotit; + } + } + + if (is_number(p)) { + num = atoi(p); + if (num > 0 && num <= njobs) { + jp = jobtab + num - 1; + if (jp->used) + goto gotit; + goto err; + } + } + + match = prefix; + if (*p == '?') { + match = strstr; + p++; + } + + found = 0; + while (jp) { + if (match(jp->ps[0].cmd, p)) { + if (found) + goto err; + found = jp; + err_msg = "%s: ambiguous"; + } + jp = jp->prev_job; + } + + if (!found) + goto err; + jp = found; + +gotit: +#if JOBS + err_msg = "job %s not created under job control"; + if (getctl && jp->jobctl == 0) + goto err; +#endif + return jp; +err: + sh_error(err_msg, name); +} + + + +/* + * Return a new job structure. + * Called with interrupts off. + */ + +struct job * +makejob(union node *node, int nprocs) +{ + int i; + struct job *jp; + + for (i = njobs, jp = jobtab ; ; jp++) { + if (--i < 0) { + jp = growjobtab(); + break; + } + if (jp->used == 0) + break; + if (jp->state != JOBDONE || !jp->waited) + continue; + if (jobctl) + continue; + freejob(jp); + break; + } + memset(jp, 0, sizeof(*jp)); +#if JOBS + if (jobctl) + jp->jobctl = 1; +#endif + jp->prev_job = curjob; + curjob = jp; + jp->used = 1; + jp->ps = &jp->ps0; + if (nprocs > 1) { + jp->ps = ckmalloc(nprocs * sizeof (struct procstat)); + } + TRACE(("makejob(0x%lx, %d) returns %%%d\n", (long)node, nprocs, + jobno(jp))); + return jp; +} + +STATIC struct job * +growjobtab(void) +{ + size_t len; + ptrdiff_t offset; + struct job *jp, *jq; + + len = njobs * sizeof(*jp); + jq = jobtab; + jp = ckrealloc(jq, len + 4 * sizeof(*jp)); + + offset = (char *)jp - (char *)jq; + if (offset) { + /* Relocate pointers */ + size_t l = len; + + jq = (struct job *)((char *)jq + l); + while (l) { + l -= sizeof(*jp); + jq--; +#define joff(p) ((struct job *)((char *)(p) + l)) +#define jmove(p) (p) = (void *)((char *)(p) + offset) + if (likely(joff(jp)->ps == &jq->ps0)) + jmove(joff(jp)->ps); + if (joff(jp)->prev_job) + jmove(joff(jp)->prev_job); + } + if (curjob) + jmove(curjob); +#undef joff +#undef jmove + } + + njobs += 4; + jobtab = jp; + jp = (struct job *)((char *)jp + len); + jq = jp + 3; + do { + jq->used = 0; + } while (--jq >= jp); + return jp; +} + + +/* + * Fork off a subshell. If we are doing job control, give the subshell its + * own process group. Jp is a job structure that the job is to be added to. + * N is the command that will be evaluated by the child. Both jp and n may + * be NULL. The mode parameter can be one of the following: + * FORK_FG - Fork off a foreground process. + * FORK_BG - Fork off a background process. + * FORK_NOJOB - Like FORK_FG, but don't give the process its own + * process group even if job control is on. + * + * When job control is turned off, background processes have their standard + * input redirected to /dev/null (except for the second and later processes + * in a pipeline). + * + * Called with interrupts off. + */ + +static void forkchild(struct job *jp, union node *n, int mode) +{ + int lvforked; + int oldlvl; + + TRACE(("Child shell %d\n", getpid())); + + oldlvl = shlvl; + lvforked = vforked; + + if (!lvforked) { + shlvl++; + + forkreset(); + +#if JOBS + /* do job control only in root shell */ + jobctl = 0; +#endif + } + +#if JOBS + if (mode != FORK_NOJOB && jp->jobctl && !oldlvl) { + pid_t pgrp; + + if (jp->nprocs == 0) + pgrp = getpid(); + else + pgrp = jp->ps[0].pid; + /* This can fail because we are doing it in the parent also */ + (void)setpgid(0, pgrp); + if (mode == FORK_FG) + xtcsetpgrp(ttyfd, pgrp); + setsignal(SIGTSTP); + setsignal(SIGTTOU); + } else +#endif + if (mode == FORK_BG) { + ignoresig(SIGINT); + ignoresig(SIGQUIT); + if (jp->nprocs == 0) { + close(0); + if (open64(_PATH_DEVNULL, O_RDONLY) != 0) + sh_error("Can't open %s", _PATH_DEVNULL); + } + } + if (!oldlvl && iflag) { + if (mode != FORK_BG) { + setsignal(SIGINT); + setsignal(SIGQUIT); + } + setsignal(SIGTERM); + } + + if (lvforked) + return; + + for (jp = curjob; jp; jp = jp->prev_job) + freejob(jp); +} + +static void forkparent(struct job *jp, union node *n, int mode, pid_t pid) +{ + if (pid < 0) { + TRACE(("Fork failed, errno=%d", errno)); + if (jp) + freejob(jp); + sh_error("Cannot fork"); + /* NOTREACHED */ + } + + TRACE(("In parent shell: child = %d\n", pid)); + if (!jp) + return; +#if JOBS + if (mode != FORK_NOJOB && jp->jobctl) { + int pgrp; + + if (jp->nprocs == 0) + pgrp = pid; + else + pgrp = jp->ps[0].pid; + /* This can fail because we are doing it in the child also */ + (void)setpgid(pid, pgrp); + } +#endif + if (mode == FORK_BG) { + backgndpid = pid; /* set $! */ + set_curjob(jp, CUR_RUNNING); + } + if (jp) { + struct procstat *ps = &jp->ps[jp->nprocs++]; + ps->pid = pid; + ps->status = -1; + ps->cmd = nullstr; + if (jobctl && n) + ps->cmd = commandtext(n); + } +} + +int +forkshell(struct job *jp, union node *n, int mode) +{ + int pid; + + TRACE(("forkshell(%%%d, %p, %d) called\n", jobno(jp), n, mode)); + pid = fork(); + if (pid == 0) + forkchild(jp, n, mode); + else + forkparent(jp, n, mode, pid); + + return pid; +} + +struct job *vforkexec(union node *n, char **argv, const char *path, int idx) +{ + struct job *jp; + int pid; + + jp = makejob(n, 1); + + sigblockall(NULL); + vforked++; + + pid = vfork(); + + if (!pid) { + forkchild(jp, n, FORK_FG); + sigclearmask(); + shellexec(argv, path, idx); + /* NOTREACHED */ + } + + vforked = 0; + sigclearmask(); + forkparent(jp, n, FORK_FG, pid); + + return jp; +} + +/* + * Wait for job to finish. + * + * Under job control we have the problem that while a child process is + * running interrupts generated by the user are sent to the child but not + * to the shell. This means that an infinite loop started by an inter- + * active user may be hard to kill. With job control turned off, an + * interactive user may place an interactive program inside a loop. If + * the interactive program catches interrupts, the user doesn't want + * these interrupts to also abort the loop. The approach we take here + * is to have the shell ignore interrupt signals while waiting for a + * forground process to terminate, and then send itself an interrupt + * signal if the child process was terminated by an interrupt signal. + * Unfortunately, some programs want to do a bit of cleanup and then + * exit on interrupt; unless these processes terminate themselves by + * sending a signal to themselves (instead of calling exit) they will + * confuse this approach. + * + * Called with interrupts off. + */ + +int +waitforjob(struct job *jp) +{ + int st; + + TRACE(("waitforjob(%%%d) called\n", jp ? jobno(jp) : 0)); + dowait(jp ? DOWAIT_BLOCK : DOWAIT_NONBLOCK, jp); + if (!jp) + return exitstatus; + + st = getstatus(jp); +#if JOBS + if (jp->jobctl) { + xtcsetpgrp(ttyfd, rootpid); + /* + * This is truly gross. + * If we're doing job control, then we did a TIOCSPGRP which + * caused us (the shell) to no longer be in the controlling + * session -- so we wouldn't have seen any ^C/SIGINT. So, we + * intuit from the subprocess exit status whether a SIGINT + * occurred, and if so interrupt ourselves. Yuck. - mycroft + */ + if (jp->sigint) + raise(SIGINT); + } +#endif + if (! JOBS || jp->state == JOBDONE) + freejob(jp); + return st; +} + + + +/* + * Wait for a process to terminate. + */ + +static int waitone(int block, struct job *job) +{ + int pid; + int status; + struct job *jp; + struct job *thisjob = NULL; + int state; + + INTOFF; + TRACE(("dowait(%d) called\n", block)); + pid = waitproc(block, &status); + TRACE(("wait returns pid %d, status=%d\n", pid, status)); + if (pid <= 0) + goto out; + + for (jp = curjob; jp; jp = jp->prev_job) { + struct procstat *sp; + struct procstat *spend; + if (jp->state == JOBDONE) + continue; + state = JOBDONE; + spend = jp->ps + jp->nprocs; + sp = jp->ps; + do { + if (sp->pid == pid) { + TRACE(("Job %d: changing status of proc %d from 0x%x to 0x%x\n", jobno(jp), pid, sp->status, status)); + sp->status = status; + thisjob = jp; + } + if (sp->status == -1) + state = JOBRUNNING; +#if JOBS + if (state == JOBRUNNING) + continue; + if (WIFSTOPPED(sp->status)) { + jp->stopstatus = sp->status; + state = JOBSTOPPED; + } +#endif + } while (++sp < spend); + if (thisjob) + goto gotjob; + } + goto out; + +gotjob: + if (state != JOBRUNNING) { + thisjob->changed = 1; + + if (thisjob->state != state) { + TRACE(("Job %d: changing state from %d to %d\n", jobno(thisjob), thisjob->state, state)); + thisjob->state = state; +#if JOBS + if (state == JOBSTOPPED) { + set_curjob(thisjob, CUR_STOPPED); + } +#endif + } + } + +out: + INTON; + + if (thisjob && thisjob == job) { + char s[48 + 1]; + int len; + + len = sprint_status(s, status, 1); + if (len) { + s[len] = '\n'; + s[len + 1] = 0; + outstr(s, out2); + } + } + return pid; +} + +static int dowait(int block, struct job *jp) +{ + int gotchld = *(volatile int *)&gotsigchld; + int rpid; + int pid; + + if (jp && jp->state != JOBRUNNING) + block = DOWAIT_NONBLOCK; + + if (block == DOWAIT_NONBLOCK && !gotchld) + return 1; + + rpid = 1; + + do { + pid = waitone(block, jp); + rpid &= !!pid; + + if (!pid || (jp && jp->state != JOBRUNNING)) + block = DOWAIT_NONBLOCK; + } while (pid >= 0); + + return rpid; +} + +/* + * Do a wait system call. If block is zero, we return -1 rather than + * blocking. If block is DOWAIT_WAITCMD, we return 0 when a signal + * other than SIGCHLD interrupted the wait. + * + * We use sigsuspend in conjunction with a non-blocking wait3 in + * order to ensure that waitcmd exits promptly upon the reception + * of a signal. + * + * For code paths other than waitcmd we either use a blocking wait3 + * or a non-blocking wait3. For the latter case the caller of dowait + * must ensure that it is called over and over again until all dead + * children have been reaped. Otherwise zombies may linger. + */ + + +STATIC int +waitproc(int block, int *status) +{ + sigset_t oldmask; + int flags = block == DOWAIT_BLOCK ? 0 : WNOHANG; + int err; + +#if JOBS + if (jobctl) + flags |= WUNTRACED; +#endif + + do { + gotsigchld = 0; + do + err = wait3(status, flags, NULL); + while (err < 0 && errno == EINTR); + + if (err || (err = -!block)) + break; + + sigblockall(&oldmask); + + while (!gotsigchld && !pending_sig) + sigsuspend(&oldmask); + + sigclearmask(); + } while (gotsigchld); + + return err; +} + +/* + * return 1 if there are stopped jobs, otherwise 0 + */ +int job_warning; +int +stoppedjobs(void) +{ + struct job *jp; + int retval; + + retval = 0; + if (job_warning > 1) + goto out; + jp = curjob; + if (jp && jp->state == JOBSTOPPED) { + out2str("You have stopped jobs.\n"); + job_warning++; + retval++; + } + +out: + return retval; +} + +/* + * Return a string identifying a command (to be printed by the + * jobs command). + */ + +STATIC char *cmdnextc; + +STATIC char * +commandtext(union node *n) +{ + char *name; + + STARTSTACKSTR(cmdnextc); + cmdtxt(n); + name = stackblock(); + TRACE(("commandtext: name %p, end %p\n", name, cmdnextc)); + return savestr(name); +} + + +STATIC void +cmdtxt(union node *n) +{ + union node *np; + struct nodelist *lp; + const char *p; + char s[2]; + + if (!n) + return; + switch (n->type) { + default: +#if DEBUG + abort(); +#endif + case NPIPE: + lp = n->npipe.cmdlist; + for (;;) { + cmdtxt(lp->n); + lp = lp->next; + if (!lp) + break; + cmdputs(" | "); + } + break; + case NSEMI: + p = "; "; + goto binop; + case NAND: + p = " && "; + goto binop; + case NOR: + p = " || "; +binop: + cmdtxt(n->nbinary.ch1); + cmdputs(p); + n = n->nbinary.ch2; + goto donode; + case NREDIR: + case NBACKGND: + n = n->nredir.n; + goto donode; + case NNOT: + cmdputs("!"); + n = n->nnot.com; +donode: + cmdtxt(n); + break; + case NIF: + cmdputs("if "); + cmdtxt(n->nif.test); + cmdputs("; then "); + if (n->nif.elsepart) { + cmdtxt(n->nif.ifpart); + cmdputs("; else "); + n = n->nif.elsepart; + } else { + n = n->nif.ifpart; + } + p = "; fi"; + goto dotail; + case NSUBSHELL: + cmdputs("("); + n = n->nredir.n; + p = ")"; + goto dotail; + case NWHILE: + p = "while "; + goto until; + case NUNTIL: + p = "until "; +until: + cmdputs(p); + cmdtxt(n->nbinary.ch1); + n = n->nbinary.ch2; + p = "; done"; +dodo: + cmdputs("; do "); +dotail: + cmdtxt(n); + goto dotail2; + case NFOR: + cmdputs("for "); + cmdputs(n->nfor.var); + cmdputs(" in "); + cmdlist(n->nfor.args, 1); + n = n->nfor.body; + p = "; done"; + goto dodo; + case NDEFUN: + cmdputs(n->ndefun.text); + p = "() { ... }"; + goto dotail2; + case NCMD: + cmdlist(n->ncmd.args, 1); + cmdlist(n->ncmd.redirect, 0); + break; + case NARG: + p = n->narg.text; +dotail2: + cmdputs(p); + break; + case NHERE: + case NXHERE: + p = "<<..."; + goto dotail2; + case NCASE: + cmdputs("case "); + cmdputs(n->ncase.expr->narg.text); + cmdputs(" in "); + for (np = n->ncase.cases; np; np = np->nclist.next) { + cmdtxt(np->nclist.pattern); + cmdputs(") "); + cmdtxt(np->nclist.body); + cmdputs(";; "); + } + p = "esac"; + goto dotail2; + case NTO: + p = ">"; + goto redir; + case NCLOBBER: + p = ">|"; + goto redir; + case NAPPEND: + p = ">>"; + goto redir; + case NTOFD: + p = ">&"; + goto redir; + case NFROM: + p = "<"; + goto redir; + case NFROMFD: + p = "<&"; + goto redir; + case NFROMTO: + p = "<>"; +redir: + s[0] = n->nfile.fd + '0'; + s[1] = '\0'; + cmdputs(s); + cmdputs(p); + if (n->type == NTOFD || n->type == NFROMFD) { + s[0] = n->ndup.dupfd + '0'; + p = s; + goto dotail2; + } else { + n = n->nfile.fname; + goto donode; + } + } +} + +STATIC void +cmdlist(union node *np, int sep) +{ + for (; np; np = np->narg.next) { + if (!sep) + cmdputs(spcstr); + cmdtxt(np); + if (sep && np->narg.next) + cmdputs(spcstr); + } +} + + +STATIC void +cmdputs(const char *s) +{ + const char *p, *str; + char cc[2] = " "; + char *nextc; + signed char c; + int subtype = 0; + int quoted = 0; + static const char vstype[VSTYPE + 1][4] = { + "", "}", "-", "+", "?", "=", + "%", "%%", "#", "##", + }; + + nextc = makestrspace((strlen(s) + 1) * 8, cmdnextc); + p = s; + while ((c = *p++) != 0) { + str = 0; + switch (c) { + case CTLESC: + c = *p++; + break; + case CTLVAR: + subtype = *p++; + if ((subtype & VSTYPE) == VSLENGTH) + str = "${#"; + else + str = "${"; + goto dostr; + case CTLENDVAR: + str = "\"}"; + str += !(quoted & 1); + quoted >>= 1; + subtype = 0; + goto dostr; + case CTLBACKQ: + str = "$(...)"; + goto dostr; + case CTLARI: + str = "$(("; + goto dostr; + case CTLENDARI: + str = "))"; + goto dostr; + case CTLQUOTEMARK: + quoted ^= 1; + c = '"'; + break; + case '=': + if (subtype == 0) + break; + if ((subtype & VSTYPE) != VSNORMAL) + quoted <<= 1; + str = vstype[subtype & VSTYPE]; + if (subtype & VSNUL) + c = ':'; + else + goto checkstr; + break; + case '\'': + case '\\': + case '"': + case '$': + /* These can only happen inside quotes */ + cc[0] = c; + str = cc; + c = '\\'; + break; + default: + break; + } + USTPUTC(c, nextc); +checkstr: + if (!str) + continue; +dostr: + while ((c = *str++)) { + USTPUTC(c, nextc); + } + } + if (quoted & 1) { + USTPUTC('"', nextc); + } + *nextc = 0; + cmdnextc = nextc; +} + + +STATIC void +showpipe(struct job *jp, struct output *out) +{ + struct procstat *sp; + struct procstat *spend; + + spend = jp->ps + jp->nprocs; + for (sp = jp->ps + 1; sp < spend; sp++) + outfmt(out, " | %s", sp->cmd); + outcslow('\n', out); + flushall(); +} + + +#if JOBS +STATIC void +xtcsetpgrp(int fd, pid_t pgrp) +{ + if (tcsetpgrp(fd, pgrp)) + sh_error("Cannot set tty process group (%s)", strerror(errno)); +} +#endif + + +STATIC int +getstatus(struct job *job) { + int status; + int retval; + + status = job->ps[job->nprocs - 1].status; + retval = WEXITSTATUS(status); + if (!WIFEXITED(status)) { +#if JOBS + retval = WSTOPSIG(status); + if (!WIFSTOPPED(status)) +#endif + { + /* XXX: limits number of signals */ + retval = WTERMSIG(status); +#if JOBS + if (retval == SIGINT) + job->sigint = 1; +#endif + } + retval += 128; + } + TRACE(("getstatus: job %d, nproc %d, status %x, retval %x\n", + jobno(job), job->nprocs, status, retval)); + return retval; +} diff --git a/bin/dash/src/jobs.h b/bin/dash/src/jobs.h new file mode 100644 index 00000000..6ac6c56d --- /dev/null +++ b/bin/dash/src/jobs.h @@ -0,0 +1,113 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)jobs.h 8.2 (Berkeley) 5/4/95 + */ + +#include <inttypes.h> +#include <sys/types.h> + +/* Mode argument to forkshell. Don't change FORK_FG or FORK_BG. */ +#define FORK_FG 0 +#define FORK_BG 1 +#define FORK_NOJOB 2 + +/* mode flags for showjob(s) */ +#define SHOW_PGID 0x01 /* only show pgid - for jobs -p */ +#define SHOW_PID 0x04 /* include process pid */ +#define SHOW_CHANGED 0x08 /* only jobs whose state has changed */ + + +/* + * A job structure contains information about a job. A job is either a + * single process or a set of processes contained in a pipeline. In the + * latter case, pidlist will be non-NULL, and will point to a -1 terminated + * array of pids. + */ + +struct procstat { + pid_t pid; /* process id */ + int status; /* last process status from wait() */ + char *cmd; /* text of command being run */ +}; + +struct job { + struct procstat ps0; /* status of process */ + struct procstat *ps; /* status or processes when more than one */ +#if JOBS + int stopstatus; /* status of a stopped job */ +#endif + uint32_t + nprocs: 16, /* number of processes */ + state: 8, +#define JOBRUNNING 0 /* at least one proc running */ +#define JOBSTOPPED 1 /* all procs are stopped */ +#define JOBDONE 2 /* all procs are completed */ +#if JOBS + sigint: 1, /* job was killed by SIGINT */ + jobctl: 1, /* job running under job control */ +#endif + waited: 1, /* true if this entry has been waited for */ + used: 1, /* true if this entry is in used */ + changed: 1; /* true if status has changed */ + struct job *prev_job; /* previous job */ +}; + +union node; + +extern pid_t backgndpid; /* pid of last background process */ +extern int job_warning; /* user was warned about stopped jobs */ +#if JOBS +extern int jobctl; /* true if doing job control */ +#else +#define jobctl 0 +#endif +extern int vforked; /* Set if we are in the vforked child */ + +void setjobctl(int); +int killcmd(int, char **); +int fgcmd(int, char **); +int bgcmd(int, char **); +int jobscmd(int, char **); +struct output; +void showjobs(struct output *, int); +int waitcmd(int, char **); +struct job *makejob(union node *, int); +int forkshell(struct job *, union node *, int); +struct job *vforkexec(union node *n, char **argv, const char *path, int idx); +int waitforjob(struct job *); +int stoppedjobs(void); + +#if ! JOBS +#define setjobctl(on) ((void)(on)) /* do nothing */ +#endif diff --git a/bin/dash/src/machdep.h b/bin/dash/src/machdep.h new file mode 100644 index 00000000..f2ff0ad8 --- /dev/null +++ b/bin/dash/src/machdep.h @@ -0,0 +1,47 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)machdep.h 8.2 (Berkeley) 5/4/95 + */ + +/* + * Most machines require the value returned from malloc to be aligned + * in some way. The following macro will get this right on many machines. + */ + +#define SHELL_SIZE (sizeof(union {int i; char *cp; double d; }) - 1) +/* + * It appears that grabstackstr() will barf with such alignments + * because stalloc() will return a string allocated in a new stackblock. + */ +#define SHELL_ALIGN(nbytes) (((nbytes) + SHELL_SIZE) & ~SHELL_SIZE) diff --git a/bin/dash/src/mail.c b/bin/dash/src/mail.c new file mode 100644 index 00000000..8eacb2d0 --- /dev/null +++ b/bin/dash/src/mail.c @@ -0,0 +1,115 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * Routines to check for mail. (Perhaps make part of main.c?) + */ +#include <sys/types.h> +#include <sys/stat.h> +#include <stdlib.h> + +#include "shell.h" +#include "nodes.h" +#include "exec.h" /* defines padvance() */ +#include "var.h" +#include "output.h" +#include "memalloc.h" +#include "error.h" +#include "mail.h" +#include "mystring.h" + + +#define MAXMBOXES 10 + +/* times of mailboxes */ +static time_t mailtime[MAXMBOXES]; +/* Set if MAIL or MAILPATH is changed. */ +static int changed; + + + +/* + * Print appropriate message(s) if mail has arrived. If changed is set, + * then the value of MAIL has changed, so we just update the values. + */ + +void +chkmail(void) +{ + const char *mpath; + char *p; + char *q; + time_t *mtp; + struct stackmark smark; + struct stat64 statb; + + setstackmark(&smark); + mpath = mpathset() ? mpathval() : mailval(); + for (mtp = mailtime; mtp < mailtime + MAXMBOXES; mtp++) { + int len; + + len = padvance_magic(&mpath, nullstr, 2); + if (!len) + break; + p = stackblock(); + if (*p == '\0') + continue; + for (q = p ; *q ; q++); +#ifdef DEBUG + if (q[-1] != '/') + abort(); +#endif + q[-1] = '\0'; /* delete trailing '/' */ + if (stat64(p, &statb) < 0) { + *mtp = 0; + continue; + } + if (!changed && statb.st_mtime != *mtp) { + outfmt( + &errout, snlfmt, + pathopt ? pathopt : "you have mail" + ); + } + *mtp = statb.st_mtime; + } + changed = 0; + popstackmark(&smark); +} + + +void +changemail(const char *val) +{ + changed++; +} diff --git a/bin/dash/src/mail.h b/bin/dash/src/mail.h new file mode 100644 index 00000000..3c6b21d2 --- /dev/null +++ b/bin/dash/src/mail.h @@ -0,0 +1,38 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)mail.h 8.2 (Berkeley) 5/4/95 + */ + +void chkmail(void); +void changemail(const char *); diff --git a/bin/dash/src/main.c b/bin/dash/src/main.c new file mode 100644 index 00000000..7a285346 --- /dev/null +++ b/bin/dash/src/main.c @@ -0,0 +1,363 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <stdio.h> +#include <signal.h> +#include <sys/stat.h> +#include <unistd.h> +#include <fcntl.h> + + +#include "shell.h" +#include "main.h" +#include "mail.h" +#include "options.h" +#include "output.h" +#include "parser.h" +#include "nodes.h" +#include "expand.h" +#include "eval.h" +#include "jobs.h" +#include "input.h" +#include "trap.h" +#include "var.h" +#include "show.h" +#include "memalloc.h" +#include "error.h" +#include "init.h" +#include "mystring.h" +#include "exec.h" +#include "cd.h" + +#define PROFILE 0 + +int rootpid; +int shlvl; +#ifdef __GLIBC__ +int *dash_errno; +#endif +#if PROFILE +short profile_buf[16384]; +extern int etext(); +#endif +MKINIT struct jmploc main_handler; + +STATIC void read_profile(const char *); +STATIC char *find_dot_file(char *); +static int cmdloop(int); +int main(int, char **); + +/* + * Main routine. We initialize things, parse the arguments, execute + * profiles if we're a login shell, and then call cmdloop to execute + * commands. The setjmp call sets up the location to jump to when an + * exception occurs. When an exception occurs the variable "state" + * is used to figure out how far we had gotten. + */ + +int +main(int argc, char **argv) +{ + char *shinit; + volatile int state; + struct stackmark smark; + int login; + +#ifdef __GLIBC__ + dash_errno = __errno_location(); +#endif + +#if PROFILE + monitor(4, etext, profile_buf, sizeof profile_buf, 50); +#endif + state = 0; + if (unlikely(setjmp(main_handler.loc))) { + int e; + int s; + + exitreset(); + + e = exception; + + s = state; + if (e == EXEND || e == EXEXIT || s == 0 || iflag == 0 || shlvl) + exitshell(); + + reset(); + + if (e == EXINT +#if ATTY + && (! attyset() || equal(termval(), "emacs")) +#endif + ) { + out2c('\n'); +#ifdef FLUSHERR + flushout(out2); +#endif + } + popstackmark(&smark); + FORCEINTON; /* enable interrupts */ + if (s == 1) + goto state1; + else if (s == 2) + goto state2; + else if (s == 3) + goto state3; + else + goto state4; + } + handler = &main_handler; +#ifdef DEBUG + opentrace(); + trputs("Shell args: "); trargs(argv); +#endif + rootpid = getpid(); + init(); + setstackmark(&smark); + login = procargs(argc, argv); + if (login) { + state = 1; + read_profile("/etc/profile"); +state1: + state = 2; + read_profile("$HOME/.profile"); + } +state2: + state = 3; + if ( +#ifndef linux + getuid() == geteuid() && getgid() == getegid() && +#endif + iflag + ) { + if ((shinit = lookupvar("ENV")) != NULL && *shinit != '\0') { + read_profile(shinit); + } + } + popstackmark(&smark); +state3: + state = 4; + if (minusc) + evalstring(minusc, sflag ? 0 : EV_EXIT); + + if (sflag || minusc == NULL) { +state4: /* XXX ??? - why isn't this before the "if" statement */ + cmdloop(1); + } +#if PROFILE + monitor(0); +#endif +#if GPROF + { + extern void _mcleanup(void); + _mcleanup(); + } +#endif + exitshell(); + /* NOTREACHED */ +} + + +/* + * Read and execute commands. "Top" is nonzero for the top level command + * loop; it turns on prompting if the shell is interactive. + */ + +static int +cmdloop(int top) +{ + union node *n; + struct stackmark smark; + int inter; + int status = 0; + int numeof = 0; + + TRACE(("cmdloop(%d) called\n", top)); + for (;;) { + int skip; + + setstackmark(&smark); + if (jobctl) + showjobs(out2, SHOW_CHANGED); + inter = 0; + if (iflag && top) { + inter++; + chkmail(); + } + n = parsecmd(inter); + /* showtree(n); DEBUG */ + if (n == NEOF) { + if (!top || numeof >= 50) + break; + if (!stoppedjobs()) { + if (!Iflag) { + if (iflag) { + out2c('\n'); +#ifdef FLUSHERR + flushout(out2); +#endif + } + break; + } + out2str("\nUse \"exit\" to leave shell.\n"); + } + numeof++; + } else if (nflag == 0) { + int i; + + job_warning = (job_warning == 2) ? 1 : 0; + numeof = 0; + i = evaltree(n, 0); + if (n) + status = i; + } + popstackmark(&smark); + + skip = evalskip; + if (skip) { + evalskip &= ~(SKIPFUNC | SKIPFUNCDEF); + break; + } + } + + return status; +} + + + +/* + * Read /etc/profile or .profile. Return on error. + */ + +STATIC void +read_profile(const char *name) +{ + name = expandstr(name); + if (setinputfile(name, INPUT_PUSH_FILE | INPUT_NOFILE_OK) < 0) + return; + + cmdloop(0); + popfile(); +} + + + +/* + * Read a file containing shell functions. + */ + +void +readcmdfile(char *name) +{ + setinputfile(name, INPUT_PUSH_FILE); + cmdloop(0); + popfile(); +} + + + +/* + * Take commands from a file. To be compatible we should do a path + * search for the file, which is necessary to find sub-commands. + */ + + +STATIC char * +find_dot_file(char *basename) +{ + char *fullname; + const char *path = pathval(); + struct stat64 statb; + int len; + + /* don't try this for absolute or relative paths */ + if (strchr(basename, '/')) + return basename; + + while ((len = padvance(&path, basename)) >= 0) { + fullname = stackblock(); + if ((!pathopt || *pathopt == 'f') && + !stat64(fullname, &statb) && S_ISREG(statb.st_mode)) { + /* This will be freed by the caller. */ + return stalloc(len); + } + } + + /* not found in the PATH */ + sh_error("%s: not found", basename); + /* NOTREACHED */ +} + +int +dotcmd(int argc, char **argv) +{ + int status = 0; + + nextopt(nullstr); + argv = argptr; + + if (*argv) { + char *fullname; + + fullname = find_dot_file(*argv); + setinputfile(fullname, INPUT_PUSH_FILE); + commandname = fullname; + status = cmdloop(0); + popfile(); + } + + return status; +} + + +int +exitcmd(int argc, char **argv) +{ + if (stoppedjobs()) + return 0; + + if (argc > 1) + savestatus = number(argv[1]); + + exraise(EXEXIT); + /* NOTREACHED */ +} + +#ifdef mkinit +INCLUDE "error.h" + +FORKRESET { + handler = &main_handler; +} +#endif diff --git a/bin/dash/src/main.h b/bin/dash/src/main.h new file mode 100644 index 00000000..19e49835 --- /dev/null +++ b/bin/dash/src/main.h @@ -0,0 +1,54 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)main.h 8.2 (Berkeley) 5/4/95 + */ + +#include <errno.h> + +/* pid of main shell */ +extern int rootpid; +/* shell level: 0 for the main shell, 1 for its children, and so on */ +extern int shlvl; +#define rootshell (!shlvl) + +#ifdef __GLIBC__ +/* glibc sucks */ +extern int *dash_errno; +#undef errno +#define errno (*dash_errno) +#endif + +void readcmdfile(char *); +int dotcmd(int, char **); +int exitcmd(int, char **); diff --git a/bin/dash/src/memalloc.c b/bin/dash/src/memalloc.c new file mode 100644 index 00000000..60637da1 --- /dev/null +++ b/bin/dash/src/memalloc.c @@ -0,0 +1,300 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <stdlib.h> +#include <unistd.h> + +#include "shell.h" +#include "output.h" +#include "memalloc.h" +#include "error.h" +#include "machdep.h" +#include "mystring.h" +#include "system.h" + +/* + * Like malloc, but returns an error when out of space. + */ + +pointer +ckmalloc(size_t nbytes) +{ + pointer p; + + p = malloc(nbytes); + if (p == NULL) + sh_error("Out of space"); + return p; +} + + +/* + * Same for realloc. + */ + +pointer +ckrealloc(pointer p, size_t nbytes) +{ + p = realloc(p, nbytes); + if (p == NULL) + sh_error("Out of space"); + return p; +} + + +/* + * Make a copy of a string in safe storage. + */ + +char * +savestr(const char *s) +{ + char *p = strdup(s); + if (!p) + sh_error("Out of space"); + return p; +} + + +/* + * Parse trees for commands are allocated in lifo order, so we use a stack + * to make this more efficient, and also to avoid all sorts of exception + * handling code to handle interrupts in the middle of a parse. + * + * The size 504 was chosen because the Ultrix malloc handles that size + * well. + */ + +/* minimum size of a block */ +#define MINSIZE SHELL_ALIGN(504) + +struct stack_block { + struct stack_block *prev; + char space[MINSIZE]; +}; + +struct stack_block stackbase; +struct stack_block *stackp = &stackbase; +char *stacknxt = stackbase.space; +size_t stacknleft = MINSIZE; +char *sstrend = stackbase.space + MINSIZE; + +pointer +stalloc(size_t nbytes) +{ + char *p; + size_t aligned; + + aligned = SHELL_ALIGN(nbytes); + if (aligned > stacknleft) { + size_t len; + size_t blocksize; + struct stack_block *sp; + + blocksize = aligned; + if (blocksize < MINSIZE) + blocksize = MINSIZE; + len = sizeof(struct stack_block) - MINSIZE + blocksize; + if (len < blocksize) + sh_error("Out of space"); + INTOFF; + sp = ckmalloc(len); + sp->prev = stackp; + stacknxt = sp->space; + stacknleft = blocksize; + sstrend = stacknxt + blocksize; + stackp = sp; + INTON; + } + p = stacknxt; + stacknxt += aligned; + stacknleft -= aligned; + return p; +} + + +void +stunalloc(pointer p) +{ +#ifdef DEBUG + if (!p || (stacknxt < (char *)p) || ((char *)p < stackp->space)) { + write(2, "stunalloc\n", 10); + abort(); + } +#endif + stacknleft += stacknxt - (char *)p; + stacknxt = p; +} + + + +void pushstackmark(struct stackmark *mark, size_t len) +{ + mark->stackp = stackp; + mark->stacknxt = stacknxt; + mark->stacknleft = stacknleft; + grabstackblock(len); +} + +void setstackmark(struct stackmark *mark) +{ + pushstackmark(mark, stacknxt == stackp->space && stackp != &stackbase); +} + + +void +popstackmark(struct stackmark *mark) +{ + struct stack_block *sp; + + INTOFF; + while (stackp != mark->stackp) { + sp = stackp; + stackp = sp->prev; + ckfree(sp); + } + stacknxt = mark->stacknxt; + stacknleft = mark->stacknleft; + sstrend = mark->stacknxt + mark->stacknleft; + INTON; +} + + +/* + * When the parser reads in a string, it wants to stick the string on the + * stack and only adjust the stack pointer when it knows how big the + * string is. Stackblock (defined in stack.h) returns a pointer to a block + * of space on top of the stack and stackblocklen returns the length of + * this block. Growstackblock will grow this space by at least one byte, + * possibly moving it (like realloc). Grabstackblock actually allocates the + * part of the block that has been used. + */ + +static void growstackblock(size_t min) +{ + size_t newlen; + + newlen = stacknleft * 2; + if (newlen < stacknleft) + sh_error("Out of space"); + min = SHELL_ALIGN(min | 128); + if (newlen < min) + newlen += min; + + if (stacknxt == stackp->space && stackp != &stackbase) { + struct stack_block *sp; + struct stack_block *prevstackp; + size_t grosslen; + + INTOFF; + sp = stackp; + prevstackp = sp->prev; + grosslen = newlen + sizeof(struct stack_block) - MINSIZE; + sp = ckrealloc((pointer)sp, grosslen); + sp->prev = prevstackp; + stackp = sp; + stacknxt = sp->space; + stacknleft = newlen; + sstrend = sp->space + newlen; + INTON; + } else { + char *oldspace = stacknxt; + int oldlen = stacknleft; + char *p = stalloc(newlen); + + /* free the space we just allocated */ + stacknxt = memcpy(p, oldspace, oldlen); + stacknleft += newlen; + } +} + +/* + * The following routines are somewhat easier to use than the above. + * The user declares a variable of type STACKSTR, which may be declared + * to be a register. The macro STARTSTACKSTR initializes things. Then + * the user uses the macro STPUTC to add characters to the string. In + * effect, STPUTC(c, p) is the same as *p++ = c except that the stack is + * grown as necessary. When the user is done, she can just leave the + * string there and refer to it using stackblock(). Or she can allocate + * the space for it using grabstackstr(). If it is necessary to allow + * someone else to use the stack temporarily and then continue to grow + * the string, the user should use grabstack to allocate the space, and + * then call ungrabstr(p) to return to the previous mode of operation. + * + * USTPUTC is like STPUTC except that it doesn't check for overflow. + * CHECKSTACKSPACE can be called before USTPUTC to ensure that there + * is space for at least one character. + */ + +void * +growstackstr(void) +{ + size_t len = stackblocksize(); + + growstackblock(0); + return stackblock() + len; +} + +char *growstackto(size_t len) +{ + if (stackblocksize() < len) + growstackblock(len); + return stackblock(); +} + +/* + * Called from CHECKSTRSPACE. + */ + +char * +makestrspace(size_t newlen, char *p) +{ + size_t len = p - stacknxt; + + return growstackto(len + newlen) + len; +} + +char * +stnputs(const char *s, size_t n, char *p) +{ + p = makestrspace(n, p); + p = mempcpy(p, s, n); + return p; +} + +char * +stputs(const char *s, char *p) +{ + return stnputs(s, strlen(s), p); +} diff --git a/bin/dash/src/memalloc.h b/bin/dash/src/memalloc.h new file mode 100644 index 00000000..b9adf764 --- /dev/null +++ b/bin/dash/src/memalloc.h @@ -0,0 +1,101 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)memalloc.h 8.2 (Berkeley) 5/4/95 + */ + +#include <stddef.h> +#include <stdlib.h> + +struct stackmark { + struct stack_block *stackp; + char *stacknxt; + size_t stacknleft; +}; + + +extern char *stacknxt; +extern size_t stacknleft; +extern char *sstrend; + +pointer ckmalloc(size_t); +pointer ckrealloc(pointer, size_t); +char *savestr(const char *); +pointer stalloc(size_t); +void stunalloc(pointer); +void pushstackmark(struct stackmark *mark, size_t len); +void setstackmark(struct stackmark *); +void popstackmark(struct stackmark *); +void *growstackstr(void); +char *growstackto(size_t len); +char *makestrspace(size_t, char *); +char *stnputs(const char *, size_t, char *); +char *stputs(const char *, char *); + + +static inline void grabstackblock(size_t len) +{ + stalloc(len); +} + +static inline char *_STPUTC(int c, char *p) { + if (p == sstrend) + p = growstackstr(); + *p++ = c; + return p; +} + +#define stackblock() ((void *)stacknxt) +#define stackblocksize() stacknleft +#define STARTSTACKSTR(p) ((p) = stackblock()) +#define STPUTC(c, p) ((p) = _STPUTC((c), (p))) +#define CHECKSTRSPACE(n, p) \ + ({ \ + char *q = (p); \ + size_t l = (n); \ + size_t m = sstrend - q; \ + if (l > m) \ + (p) = makestrspace(l, q); \ + 0; \ + }) +#define USTPUTC(c, p) (*p++ = (c)) +#define STACKSTRNUL(p) ((p) == sstrend? (p = growstackstr(), *p = '\0') : (*p = '\0')) +#define STUNPUTC(p) (--p) +#define STTOPC(p) p[-1] +#define STADJUST(amount, p) (p += (amount)) + +#define grabstackstr(p) stalloc((char *)(p) - (char *)stackblock()) +#define ungrabstackstr(s, p) stunalloc((s)) +#define stackstrend() ((void *)sstrend) + +#define ckfree(p) free((pointer)(p)) diff --git a/bin/dash/src/miscbltin.c b/bin/dash/src/miscbltin.c new file mode 100644 index 00000000..5ccbbcb8 --- /dev/null +++ b/bin/dash/src/miscbltin.c @@ -0,0 +1,506 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * Miscelaneous builtins. + */ + +#include <sys/types.h> /* quad_t */ +#include <sys/param.h> /* BSD4_4 */ +#include <sys/stat.h> +#include <sys/time.h> +#include <sys/resource.h> +#include <unistd.h> +#include <stdlib.h> +#include <ctype.h> +#include <inttypes.h> + +#include "shell.h" +#include "options.h" +#include "var.h" +#include "output.h" +#include "memalloc.h" +#include "error.h" +#include "miscbltin.h" +#include "mystring.h" +#include "main.h" +#include "expand.h" +#include "parser.h" +#include "trap.h" + +#undef rflag + + +/** handle one line of the read command. + * more fields than variables -> remainder shall be part of last variable. + * less fields than variables -> remaining variables unset. + * + * @param line complete line of input + * @param ac argument count + * @param ap argument (variable) list + * @param len length of line including trailing '\0' + */ +static void +readcmd_handle_line(char *s, int ac, char **ap) +{ + struct arglist arglist; + struct strlist *sl; + + s = grabstackstr(s); + + arglist.lastp = &arglist.list; + + ifsbreakup(s, ac, &arglist); + *arglist.lastp = NULL; + ifsfree(); + + sl = arglist.list; + + do { + if (!sl) { + /* nullify remaining arguments */ + do { + setvar(*ap, nullstr, 0); + } while (*++ap); + + return; + } + + /* set variable to field */ + rmescapes(sl->text); + setvar(*ap, sl->text, 0); + sl = sl->next; + } while (*++ap); +} + +/* + * The read builtin. The -e option causes backslashes to escape the + * following character. The -p option followed by an argument prompts + * with the argument. + * + * This uses unbuffered input, which may be avoidable in some cases. + */ + +int +readcmd(int argc, char **argv) +{ + char **ap; + char c; + int rflag; + char *prompt; + char *p; + int startloc; + int newloc; + int status; + int i; + + rflag = 0; + prompt = NULL; + while ((i = nextopt("p:r")) != '\0') { + if (i == 'p') + prompt = optionarg; + else + rflag = 1; + } + if (prompt && isatty(0)) { + out2str(prompt); +#ifdef FLUSHERR + flushall(); +#endif + } + if (*(ap = argptr) == NULL) + sh_error("arg count"); + + status = 0; + STARTSTACKSTR(p); + + goto start; + + for (;;) { + switch (read(0, &c, 1)) { + case 1: + break; + default: + if (errno == EINTR && !pending_sig) + continue; + /* fall through */ + case 0: + status = 1; + goto out; + } + if (c == '\0') + continue; + if (newloc >= startloc) { + if (c == '\n') + goto resetbs; + goto put; + } + if (!rflag && c == '\\') { + newloc = p - (char *)stackblock(); + continue; + } + if (c == '\n') + break; +put: + CHECKSTRSPACE(2, p); + if (strchr(qchars, c)) + USTPUTC(CTLESC, p); + USTPUTC(c, p); + + if (newloc >= startloc) { +resetbs: + recordregion(startloc, newloc, 0); +start: + startloc = p - (char *)stackblock(); + newloc = startloc - 1; + } + } +out: + recordregion(startloc, p - (char *)stackblock(), 0); + STACKSTRNUL(p); + readcmd_handle_line(p + 1, argc - (ap - argv), ap); + return status; +} + + + +/* + * umask builtin + * + * This code was ripped from pdksh 5.2.14 and hacked for use with + * dash by Herbert Xu. + * + * Public domain. + */ + +int +umaskcmd(int argc, char **argv) +{ + char *ap; + int mask; + int i; + int symbolic_mode = 0; + + while ((i = nextopt("S")) != '\0') { + symbolic_mode = 1; + } + + INTOFF; + mask = umask(0); + umask(mask); + INTON; + + if ((ap = *argptr) == NULL) { + if (symbolic_mode) { + char buf[18]; + int j; + + mask = ~mask; + ap = buf; + for (i = 0; i < 3; i++) { + *ap++ = "ugo"[i]; + *ap++ = '='; + for (j = 0; j < 3; j++) + if (mask & (1 << (8 - (3*i + j)))) + *ap++ = "rwx"[j]; + *ap++ = ','; + } + ap[-1] = '\0'; + out1fmt("%s\n", buf); + } else { + out1fmt("%.4o\n", mask); + } + } else { + int new_mask; + + if (isdigit((unsigned char) *ap)) { + new_mask = 0; + do { + if (*ap >= '8' || *ap < '0') + sh_error(illnum, *argptr); + new_mask = (new_mask << 3) + (*ap - '0'); + } while (*++ap != '\0'); + } else { + int positions, new_val; + char op; + + mask = ~mask; + new_mask = mask; + positions = 0; + while (*ap) { + while (*ap && strchr("augo", *ap)) + switch (*ap++) { + case 'a': positions |= 0111; break; + case 'u': positions |= 0100; break; + case 'g': positions |= 0010; break; + case 'o': positions |= 0001; break; + } + if (!positions) + positions = 0111; /* default is a */ + if (!strchr("=+-", op = *ap)) + break; + ap++; + new_val = 0; + while (*ap && strchr("rwxugoXs", *ap)) + switch (*ap++) { + case 'r': new_val |= 04; break; + case 'w': new_val |= 02; break; + case 'x': new_val |= 01; break; + case 'u': new_val |= mask >> 6; + break; + case 'g': new_val |= mask >> 3; + break; + case 'o': new_val |= mask >> 0; + break; + case 'X': if (mask & 0111) + new_val |= 01; + break; + case 's': /* ignored */ + break; + } + new_val = (new_val & 07) * positions; + switch (op) { + case '-': + new_mask &= ~new_val; + break; + case '=': + new_mask = new_val + | (new_mask & ~(positions * 07)); + break; + case '+': + new_mask |= new_val; + } + if (*ap == ',') { + positions = 0; + ap++; + } else if (!strchr("=+-", *ap)) + break; + } + if (*ap) { + sh_error("Illegal mode: %s", *argptr); + return 1; + } + new_mask = ~new_mask; + } + umask(new_mask); + } + return 0; +} + +#ifdef HAVE_GETRLIMIT +/* + * ulimit builtin + * + * This code, originally by Doug Gwyn, Doug Kingston, Eric Gisin, and + * Michael Rendell was ripped from pdksh 5.0.8 and hacked for use with + * ash by J.T. Conklin. + * + * Public domain. + */ + +struct limits { + const char *name; + int cmd; + int factor; /* multiply by to get rlim_{cur,max} values */ + char option; +}; + +static const struct limits limits[] = { +#ifdef RLIMIT_CPU + { "time(seconds)", RLIMIT_CPU, 1, 't' }, +#endif +#ifdef RLIMIT_FSIZE + { "file(blocks)", RLIMIT_FSIZE, 512, 'f' }, +#endif +#ifdef RLIMIT_DATA + { "data(kbytes)", RLIMIT_DATA, 1024, 'd' }, +#endif +#ifdef RLIMIT_STACK + { "stack(kbytes)", RLIMIT_STACK, 1024, 's' }, +#endif +#ifdef RLIMIT_CORE + { "coredump(blocks)", RLIMIT_CORE, 512, 'c' }, +#endif +#ifdef RLIMIT_RSS + { "memory(kbytes)", RLIMIT_RSS, 1024, 'm' }, +#endif +#ifdef RLIMIT_MEMLOCK + { "locked memory(kbytes)", RLIMIT_MEMLOCK, 1024, 'l' }, +#endif +#ifdef RLIMIT_NPROC + { "process", RLIMIT_NPROC, 1, 'p' }, +#endif +#ifdef RLIMIT_NOFILE + { "nofiles", RLIMIT_NOFILE, 1, 'n' }, +#endif +#ifdef RLIMIT_AS + { "vmemory(kbytes)", RLIMIT_AS, 1024, 'v' }, +#endif +#ifdef RLIMIT_LOCKS + { "locks", RLIMIT_LOCKS, 1, 'w' }, +#endif +#ifdef RLIMIT_RTPRIO + { "rtprio", RLIMIT_RTPRIO, 1, 'r' }, +#endif + { (char *) 0, 0, 0, '\0' } +}; + +enum limtype { SOFT = 0x1, HARD = 0x2 }; + +static void printlim(enum limtype how, const struct rlimit *limit, + const struct limits *l) +{ + rlim_t val; + + val = limit->rlim_max; + if (how & SOFT) + val = limit->rlim_cur; + + if (val == RLIM_INFINITY) + out1fmt("unlimited\n"); + else { + val /= l->factor; + out1fmt("%" PRIdMAX "\n", (intmax_t) val); + } +} + +int +ulimitcmd(int argc, char **argv) +{ + int c; + rlim_t val = 0; + enum limtype how = SOFT | HARD; + const struct limits *l; + int set, all = 0; + int optc, what; + struct rlimit limit; + + what = 'f'; + while ((optc = nextopt("HSa" +#ifdef RLIMIT_CPU + "t" +#endif +#ifdef RLIMIT_FSIZE + "f" +#endif +#ifdef RLIMIT_DATA + "d" +#endif +#ifdef RLIMIT_STACK + "s" +#endif +#ifdef RLIMIT_CORE + "c" +#endif +#ifdef RLIMIT_RSS + "m" +#endif +#ifdef RLIMIT_MEMLOCK + "l" +#endif +#ifdef RLIMIT_NPROC + "p" +#endif +#ifdef RLIMIT_NOFILE + "n" +#endif +#ifdef RLIMIT_AS + "v" +#endif +#ifdef RLIMIT_LOCKS + "w" +#endif + )) != '\0') + switch (optc) { + case 'H': + how = HARD; + break; + case 'S': + how = SOFT; + break; + case 'a': + all = 1; + break; + default: + what = optc; + } + + for (l = limits; l->option != what; l++) + ; + + set = *argptr ? 1 : 0; + if (set) { + char *p = *argptr; + + if (all || argptr[1]) + sh_error("too many arguments"); + if (strcmp(p, "unlimited") == 0) + val = RLIM_INFINITY; + else { + val = (rlim_t) 0; + + while ((c = *p++) >= '0' && c <= '9') + { + val = (val * 10) + (long)(c - '0'); + if (val < (rlim_t) 0) + break; + } + if (c) + sh_error("bad number"); + val *= l->factor; + } + } + if (all) { + for (l = limits; l->name; l++) { + getrlimit(l->cmd, &limit); + out1fmt("%-20s ", l->name); + printlim(how, &limit, l); + } + return 0; + } + + getrlimit(l->cmd, &limit); + if (set) { + if (how & HARD) + limit.rlim_max = val; + if (how & SOFT) + limit.rlim_cur = val; + if (setrlimit(l->cmd, &limit) < 0) + sh_error("error setting limit (%s)", strerror(errno)); + } else { + printlim(how, &limit, l); + } + return 0; +} +#endif diff --git a/bin/dash/src/miscbltin.h b/bin/dash/src/miscbltin.h new file mode 100644 index 00000000..dd9a8d1c --- /dev/null +++ b/bin/dash/src/miscbltin.h @@ -0,0 +1,31 @@ +/* + * Copyright (c) 1997 Christos Zoulas. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +int readcmd(int, char **); +int umaskcmd(int, char **); +int ulimitcmd(int, char **); diff --git a/bin/dash/src/mkbuiltins b/bin/dash/src/mkbuiltins new file mode 100644 index 00000000..f1f25932 --- /dev/null +++ b/bin/dash/src/mkbuiltins @@ -0,0 +1,120 @@ +#!/bin/sh - +# $NetBSD: mkbuiltins,v 1.17 2002/11/24 22:35:41 christos Exp $ +# +# Copyright (c) 1991, 1993 +# The Regents of the University of California. All rights reserved. +# Copyright (c) 1997-2005 +# Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. +# +# This code is derived from software contributed to Berkeley by +# Kenneth Almquist. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# 3. Neither the name of the University nor the names of its contributors +# may be used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# @(#)mkbuiltins 8.2 (Berkeley) 5/4/95 + +tempfile=mktemp +if ! type tempfile > /dev/null 2>&1 && ! type mktemp > /dev/null 2>&1; then + _my_tempfile() + { + local index=0 + while test -f "${TMPDIR:-/tmp}/builtin.$$.$index"; do + index=`expr $index + 1` + done + + touch "${TMPDIR:-/tmp}/builtin.$$.$index" + echo "${TMPDIR:-/tmp}/builtin.$$.$index" + } + + tempfile="_my_tempfile" +elif ! type tempfile > /dev/null 2>&1; then + tempfile="mktemp ${TMPDIR:-/tmp}/builtin.XXXXXX" +fi + +trap 'rm -f $temp $temp2' EXIT +temp=$($tempfile) +temp2=$($tempfile) + +builtins=$1 + +exec > builtins.c +cat <<\! +/* + * This file was generated by the mkbuiltins program. + */ + +#include "shell.h" +#include "builtins.h" + +! +< $builtins sed '/^#/d; /^ *$/d' > $temp +awk '{ printf "int %s(int, char **);\n", $1}' $temp +echo ' +const struct builtincmd builtincmd[] = {' +awk '{ for (i = 2 ; i <= NF ; i++) { + line = $i "\t" $1 + if ($i ~ /^-/) + line = $(++i) "\t" line + print line + }}' $temp | LC_ALL= LC_COLLATE=C sort -k 1,1 | tee $temp2 | awk '{ + opt = "" + if (NF > 2) { + opt = substr($2, 2) + $2 = $3 + } + mask = 0 + cmd = $2 + if (opt ~ /n/) { cmd = "NULL" } + if (opt ~ /s/) { mask += 1 } + if (opt ~ /[su]/) { mask += 2 } + if (opt ~ /a/) { mask += 4 } + printf "\t{ \"%s\", %s, %d },\n", $1, cmd, mask + }' +echo '};' + +exec > builtins.h +cat <<\! +/* + * This file was generated by the mkbuiltins program. + */ + +! +sed 's/ -[a-z]*//' $temp2 | nl -ba -v0 | + LC_ALL= LC_COLLATE=C sort -u -k 3,3 | + tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ | + awk '{ printf "#define %s (builtincmd + %d)\n", $3, $1}' +printf '\n#define NUMBUILTINS %d\n' $(wc -l < $temp2) +echo ' +#define BUILTIN_SPECIAL 0x1 +#define BUILTIN_REGULAR 0x2 +#define BUILTIN_ASSIGN 0x4 + +struct builtincmd { + const char *name; + int (*builtin)(int, char **); + unsigned flags; +}; + +extern const struct builtincmd builtincmd[];' diff --git a/bin/dash/src/mkinit.c b/bin/dash/src/mkinit.c new file mode 100644 index 00000000..9025862e --- /dev/null +++ b/bin/dash/src/mkinit.c @@ -0,0 +1,493 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * This program scans all the source files for code to handle various + * special events and combines this code into one file. This (allegedly) + * improves the structure of the program since there is no need for + * anyone outside of a module to know that that module performs special + * operations on particular events. + * + * Usage: mkinit sourcefile... + */ + + +#include <sys/types.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <fcntl.h> +#include <unistd.h> + + +/* + * OUTFILE is the name of the output file. Output is initially written + * to the file OUTTEMP, which is then moved to OUTFILE. + */ + +#define OUTFILE "init.c" +#define OUTTEMP "init.c.new" + + +/* + * A text structure is basicly just a string that grows as more characters + * are added onto the end of it. It is implemented as a linked list of + * blocks of characters. The routines addstr and addchar append a string + * or a single character, respectively, to a text structure. Writetext + * writes the contents of a text structure to a file. + */ + +#define BLOCKSIZE 512 + +struct text { + char *nextc; + int nleft; + struct block *start; + struct block *last; +}; + +struct block { + struct block *next; + char text[BLOCKSIZE]; +}; + + +/* + * There is one event structure for each event that mkinit handles. + */ + +struct event { + char *name; /* name of event (e.g. INIT) */ + char *routine; /* name of routine called on event */ + char *comment; /* comment describing routine */ + struct text code; /* code for handling event */ +}; + + +char writer[] = "\ +/*\n\ + * This file was generated by the mkinit program.\n\ + */\n\ +\n"; + +char init[] = "\ +/*\n\ + * Initialization code.\n\ + */\n"; + +char exitreset[] = "\ +/*\n\ + * This routine is called when an error or an interrupt occurs in an\n\ + * interactive shell and control is returned to the main command loop\n\ + * but prior to exitshell. \n\ + */\n"; + +char forkreset[] = "\ +/*\n\ + * This routine is called when we enter a subshell.\n\ + */\n"; + +char reset[] = "\ +/*\n\ + * This routine is called when an error or an interrupt occurs in an\n\ + * interactive shell and control is returned to the main command loop.\n\ + */\n"; + + +struct event event[] = { + {"INIT", "init", init}, + {"EXITRESET", "exitreset", exitreset}, + {"FORKRESET", "forkreset", forkreset}, + {"RESET", "reset", reset}, + {NULL, NULL} +}; + + +char *curfile; /* current file */ +int linno; /* current line */ +char *header_files[200]; /* list of header files */ +struct text defines; /* #define statements */ +struct text decls; /* declarations */ +int amiddecls; /* for formatting */ + + +void readfile(char *); +int match(char *, char *); +int gooddefine(char *); +void doevent(struct event *, FILE *, char *); +void doinclude(char *); +void dodecl(char *, FILE *); +void output(void); +void addstr(char *, struct text *); +void addchar(int, struct text *); +void writetext(struct text *, FILE *); +FILE *ckfopen(char *, char *); +void *ckmalloc(int); +char *savestr(char *); +static void error(char *); +int main(int, char **); + +#define equal(s1, s2) (strcmp(s1, s2) == 0) + +int +main(int argc, char **argv) +{ + char **ap; + + header_files[0] = "\"shell.h\""; + header_files[1] = "\"mystring.h\""; + header_files[2] = "\"init.h\""; + for (ap = argv + 1 ; *ap ; ap++) + readfile(*ap); + output(); + rename(OUTTEMP, OUTFILE); + exit(0); + /* NOTREACHED */ +} + + +/* + * Parse an input file. + */ + +void +readfile(char *fname) +{ + FILE *fp; + char line[1024]; + struct event *ep; + + fp = ckfopen(fname, "r"); + curfile = fname; + linno = 0; + amiddecls = 0; + while (fgets(line, sizeof line, fp) != NULL) { + linno++; + for (ep = event ; ep->name ; ep++) { + if (line[0] == ep->name[0] && match(ep->name, line)) { + doevent(ep, fp, fname); + break; + } + } + if (line[0] == 'I' && match("INCLUDE", line)) + doinclude(line); + if (line[0] == 'M' && match("MKINIT", line)) + dodecl(line, fp); + if (line[0] == '#' && gooddefine(line)) { + char *cp; + char line2[1024]; + static const char undef[] = "#undef "; + + strcpy(line2, line); + memcpy(line2, undef, sizeof(undef) - 1); + cp = line2 + sizeof(undef) - 1; + while(*cp && (*cp == ' ' || *cp == '\t')) + cp++; + while(*cp && *cp != ' ' && *cp != '\t' && *cp != '\n') + cp++; + *cp++ = '\n'; *cp = '\0'; + addstr(line2, &defines); + addstr(line, &defines); + } + } + fclose(fp); +} + + +int +match(char *name, char *line) +{ + char *p, *q; + + p = name, q = line; + while (*p) { + if (*p++ != *q++) + return 0; + } + if (*q != '{' && *q != ' ' && *q != '\t' && *q != '\n') + return 0; + return 1; +} + + +int +gooddefine(char *line) +{ + char *p; + + if (! match("#define", line)) + return 0; /* not a define */ + p = line + 7; + while (*p == ' ' || *p == '\t') + p++; + while (*p != ' ' && *p != '\t') { + if (*p == '(') + return 0; /* macro definition */ + p++; + } + while (*p != '\n' && *p != '\0') + p++; + if (p[-1] == '\\') + return 0; /* multi-line definition */ + return 1; +} + + +void +doevent(struct event *ep, FILE *fp, char *fname) +{ + char line[1024]; + int indent; + char *p; + + sprintf(line, "\n /* from %s: */\n", fname); + addstr(line, &ep->code); + addstr(" {\n", &ep->code); + for (;;) { + linno++; + if (fgets(line, sizeof line, fp) == NULL) + error("Unexpected EOF"); + if (equal(line, "}\n")) + break; + indent = 6; + for (p = line ; *p == '\t' ; p++) + indent += 8; + for ( ; *p == ' ' ; p++) + indent++; + if (*p == '\n' || *p == '#') + indent = 0; + while (indent >= 8) { + addchar('\t', &ep->code); + indent -= 8; + } + while (indent > 0) { + addchar(' ', &ep->code); + indent--; + } + addstr(p, &ep->code); + } + addstr(" }\n", &ep->code); +} + + +void +doinclude(char *line) +{ + char *p; + char *name; + char **pp; + + for (p = line ; *p != '"' && *p != '<' && *p != '\0' ; p++); + if (*p == '\0') + error("Expecting '\"' or '<'"); + name = p; + while (*p != ' ' && *p != '\t' && *p != '\n') + p++; + if (p[-1] != '"' && p[-1] != '>') + error("Missing terminator"); + *p = '\0'; + + /* name now contains the name of the include file */ + for (pp = header_files ; *pp && ! equal(*pp, name) ; pp++); + if (*pp == NULL) + *pp = savestr(name); +} + + +void +dodecl(char *line1, FILE *fp) +{ + char line[1024]; + char *p, *q; + + if (strcmp(line1, "MKINIT\n") == 0) { /* start of struct/union decl */ + addchar('\n', &decls); + do { + linno++; + if (fgets(line, sizeof line, fp) == NULL) + error("Unterminated structure declaration"); + addstr(line, &decls); + } while (line[0] != '}'); + amiddecls = 0; + } else { + if (! amiddecls) + addchar('\n', &decls); + q = NULL; + for (p = line1 + 6 ; *p && strchr("=/\n", *p) == NULL; p++) + continue; + if (*p == '=') { /* eliminate initialization */ + for (q = p ; *q && *q != ';' ; q++); + if (*q == '\0') + q = NULL; + else { + while (p[-1] == ' ') + p--; + *p = '\0'; + } + } + addstr("extern", &decls); + addstr(line1 + 6, &decls); + if (q != NULL) + addstr(q, &decls); + amiddecls = 1; + } +} + + + +/* + * Write the output to the file OUTTEMP. + */ + +void +output(void) +{ + FILE *fp; + char **pp; + struct event *ep; + + fp = ckfopen(OUTTEMP, "w"); + fputs(writer, fp); + for (pp = header_files ; *pp ; pp++) + fprintf(fp, "#include %s\n", *pp); + fputs("\n\n\n", fp); + writetext(&defines, fp); + fputs("\n\n", fp); + writetext(&decls, fp); + for (ep = event ; ep->name ; ep++) { + fputs("\n\n\n", fp); + fputs(ep->comment, fp); + fprintf(fp, "\nvoid\n%s() {\n", ep->routine); + writetext(&ep->code, fp); + fprintf(fp, "}\n"); + } + fclose(fp); +} + + +/* + * A text structure is simply a block of text that is kept in memory. + * Addstr appends a string to the text struct, and addchar appends a single + * character. + */ + +void +addstr(char *s, struct text *text) +{ + while (*s) { + if (--text->nleft < 0) + addchar(*s++, text); + else + *text->nextc++ = *s++; + } +} + + +void +addchar(int c, struct text *text) +{ + struct block *bp; + + if (--text->nleft < 0) { + bp = ckmalloc(sizeof *bp); + if (text->start == NULL) + text->start = bp; + else + text->last->next = bp; + text->last = bp; + text->nextc = bp->text; + text->nleft = BLOCKSIZE - 1; + } + *text->nextc++ = c; +} + +/* + * Write the contents of a text structure to a file. + */ +void +writetext(struct text *text, FILE *fp) +{ + struct block *bp; + + if (text->start != NULL) { + for (bp = text->start ; bp != text->last ; bp = bp->next) { + if ((fwrite(bp->text, sizeof (char), BLOCKSIZE, fp)) != BLOCKSIZE) + error("Can't write data\n"); + } + if ((fwrite(bp->text, sizeof (char), BLOCKSIZE - text->nleft, fp)) != (BLOCKSIZE - text->nleft)) + error("Can't write data\n"); + } +} + +FILE * +ckfopen(char *file, char *mode) +{ + FILE *fp; + + if ((fp = fopen(file, mode)) == NULL) { + fprintf(stderr, "Can't open %s\n", file); + exit(2); + } + return fp; +} + +void * +ckmalloc(int nbytes) +{ + char *p; + + if ((p = malloc(nbytes)) == NULL) + error("Out of space"); + return p; +} + +char * +savestr(char *s) +{ + char *p; + + p = ckmalloc(strlen(s) + 1); + strcpy(p, s); + return p; +} + +static void +error(char *msg) +{ + if (curfile != NULL) + fprintf(stderr, "%s:%d: ", curfile, linno); + fprintf(stderr, "%s\n", msg); + exit(2); + /* NOTREACHED */ +} diff --git a/bin/dash/src/mknodes.c b/bin/dash/src/mknodes.c new file mode 100644 index 00000000..1903a605 --- /dev/null +++ b/bin/dash/src/mknodes.c @@ -0,0 +1,448 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * This program reads the nodetypes file and nodes.c.pat file. It generates + * the files nodes.h and nodes.c. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> + +#define MAXTYPES 50 /* max number of node types */ +#define MAXFIELDS 20 /* max fields in a structure */ +#define BUFLEN 100 /* size of character buffers */ + +/* field types */ +#define T_NODE 1 /* union node *field */ +#define T_NODELIST 2 /* struct nodelist *field */ +#define T_STRING 3 +#define T_INT 4 /* int field */ +#define T_OTHER 5 /* other */ +#define T_TEMP 6 /* don't copy this field */ + + +struct field { /* a structure field */ + char *name; /* name of field */ + int type; /* type of field */ + char *decl; /* declaration of field */ +}; + + +struct str { /* struct representing a node structure */ + char *tag; /* structure tag */ + int nfields; /* number of fields in the structure */ + struct field field[MAXFIELDS]; /* the fields of the structure */ + int done; /* set if fully parsed */ +}; + + +static int ntypes; /* number of node types */ +static char *nodename[MAXTYPES]; /* names of the nodes */ +static struct str *nodestr[MAXTYPES]; /* type of structure used by the node */ +static int nstr; /* number of structures */ +static struct str str[MAXTYPES]; /* the structures */ +static struct str *curstr; /* current structure */ +static FILE *infp; +static char line[1024]; +static int linno; +static char *linep; + +static void parsenode(void); +static void parsefield(void); +static void output(char *); +static void outsizes(FILE *); +static void outfunc(FILE *, int); +static void indent(int, FILE *); +static int nextfield(char *); +static void skipbl(void); +static int readline(void); +static void error(const char *, ...); +static char *savestr(const char *); +int main(int, char **); + + +int +main(int argc, char **argv) +{ + + /* + * some versions of linux complain: initializer element is not + * constant if this is done at compile time. + */ + infp = stdin; + + if (argc != 3) + error("usage: mknodes file"); + if ((infp = fopen(argv[1], "r")) == NULL) + error("Can't open %s", argv[1]); + while (readline()) { + if (line[0] == ' ' || line[0] == '\t') + parsefield(); + else if (line[0] != '\0') + parsenode(); + } + output(argv[2]); + exit(0); + /* NOTREACHED */ +} + + + +static void +parsenode(void) +{ + char name[BUFLEN]; + char tag[BUFLEN]; + struct str *sp; + + if (curstr && curstr->nfields > 0) + curstr->done = 1; + nextfield(name); + if (! nextfield(tag)) + error("Tag expected"); + if (*linep != '\0') + error("Garbage at end of line"); + nodename[ntypes] = savestr(name); + for (sp = str ; sp < str + nstr ; sp++) { + if (strcmp(sp->tag, tag) == 0) + break; + } + if (sp >= str + nstr) { + sp->tag = savestr(tag); + sp->nfields = 0; + curstr = sp; + nstr++; + } + nodestr[ntypes] = sp; + ntypes++; +} + + +static void +parsefield(void) +{ + char name[BUFLEN]; + char type[BUFLEN]; + char decl[2 * BUFLEN]; + struct field *fp; + + if (curstr == NULL || curstr->done) + error("No current structure to add field to"); + if (! nextfield(name)) + error("No field name"); + if (! nextfield(type)) + error("No field type"); + fp = &curstr->field[curstr->nfields]; + fp->name = savestr(name); + if (strcmp(type, "nodeptr") == 0) { + fp->type = T_NODE; + sprintf(decl, "union node *%s", name); + } else if (strcmp(type, "nodelist") == 0) { + fp->type = T_NODELIST; + sprintf(decl, "struct nodelist *%s", name); + } else if (strcmp(type, "string") == 0) { + fp->type = T_STRING; + sprintf(decl, "char *%s", name); + } else if (strcmp(type, "int") == 0) { + fp->type = T_INT; + sprintf(decl, "int %s", name); + } else if (strcmp(type, "other") == 0) { + fp->type = T_OTHER; + } else if (strcmp(type, "temp") == 0) { + fp->type = T_TEMP; + } else { + error("Unknown type %s", type); + } + if (fp->type == T_OTHER || fp->type == T_TEMP) { + skipbl(); + fp->decl = savestr(linep); + } else { + if (*linep) + error("Garbage at end of line"); + fp->decl = savestr(decl); + } + curstr->nfields++; +} + + +char writer[] = "\ +/*\n\ + * This file was generated by the mknodes program.\n\ + */\n\ +\n"; + +static void +output(char *file) +{ + FILE *hfile; + FILE *cfile; + FILE *patfile; + int i; + struct str *sp; + struct field *fp; + char *p; + + if ((patfile = fopen(file, "r")) == NULL) + error("Can't open %s", file); + if ((hfile = fopen("nodes.h", "w")) == NULL) + error("Can't create nodes.h"); + if ((cfile = fopen("nodes.c", "w")) == NULL) + error("Can't create nodes.c"); + fputs(writer, hfile); + for (i = 0 ; i < ntypes ; i++) + fprintf(hfile, "#define %s %d\n", nodename[i], i); + fputs("\n\n\n", hfile); + for (sp = str ; sp < &str[nstr] ; sp++) { + fprintf(hfile, "struct %s {\n", sp->tag); + for (i = sp->nfields, fp = sp->field ; --i >= 0 ; fp++) { + fprintf(hfile, " %s;\n", fp->decl); + } + fputs("};\n\n\n", hfile); + } + fputs("union node {\n", hfile); + fprintf(hfile, " int type;\n"); + for (sp = str ; sp < &str[nstr] ; sp++) { + fprintf(hfile, " struct %s %s;\n", sp->tag, sp->tag); + } + fputs("};\n\n\n", hfile); + fputs("struct nodelist {\n", hfile); + fputs("\tstruct nodelist *next;\n", hfile); + fputs("\tunion node *n;\n", hfile); + fputs("};\n\n\n", hfile); + fputs("struct funcnode {\n", hfile); + fputs("\tint count;\n", hfile); + fputs("\tunion node n;\n", hfile); + fputs("};\n\n\n", hfile); + fputs("struct funcnode *copyfunc(union node *);\n", hfile); + fputs("void freefunc(struct funcnode *);\n", hfile); + + fputs(writer, cfile); + while (fgets(line, sizeof line, patfile) != NULL) { + for (p = line ; *p == ' ' || *p == '\t' ; p++); + if (strcmp(p, "%SIZES\n") == 0) + outsizes(cfile); + else if (strcmp(p, "%CALCSIZE\n") == 0) + outfunc(cfile, 1); + else if (strcmp(p, "%COPY\n") == 0) + outfunc(cfile, 0); + else + fputs(line, cfile); + } +} + + + +static void +outsizes(FILE *cfile) +{ + int i; + + fprintf(cfile, "static const short nodesize[%d] = {\n", ntypes); + for (i = 0 ; i < ntypes ; i++) { + fprintf(cfile, " SHELL_ALIGN(sizeof (struct %s)),\n", + nodestr[i]->tag); + } + fprintf(cfile, "};\n"); +} + + +static void +outfunc(FILE *cfile, int calcsize) +{ + struct str *sp; + struct field *fp; + int i; + + fputs(" if (n == NULL)\n", cfile); + if (calcsize) + fputs(" return;\n", cfile); + else + fputs(" return NULL;\n", cfile); + if (calcsize) + fputs(" funcblocksize += nodesize[n->type];\n", cfile); + else { + fputs(" new = funcblock;\n", cfile); + fputs(" funcblock = (char *) funcblock + nodesize[n->type];\n", cfile); + } + fputs(" switch (n->type) {\n", cfile); + for (sp = str ; sp < &str[nstr] ; sp++) { + for (i = 0 ; i < ntypes ; i++) { + if (nodestr[i] == sp) + fprintf(cfile, " case %s:\n", nodename[i]); + } + for (i = sp->nfields ; --i >= 1 ; ) { + fp = &sp->field[i]; + switch (fp->type) { + case T_NODE: + if (calcsize) { + indent(12, cfile); + fprintf(cfile, "calcsize(n->%s.%s);\n", + sp->tag, fp->name); + } else { + indent(12, cfile); + fprintf(cfile, "new->%s.%s = copynode(n->%s.%s);\n", + sp->tag, fp->name, sp->tag, fp->name); + } + break; + case T_NODELIST: + if (calcsize) { + indent(12, cfile); + fprintf(cfile, "sizenodelist(n->%s.%s);\n", + sp->tag, fp->name); + } else { + indent(12, cfile); + fprintf(cfile, "new->%s.%s = copynodelist(n->%s.%s);\n", + sp->tag, fp->name, sp->tag, fp->name); + } + break; + case T_STRING: + if (calcsize) { + indent(12, cfile); + fprintf(cfile, "funcstringsize += strlen(n->%s.%s) + 1;\n", + sp->tag, fp->name); + } else { + indent(12, cfile); + fprintf(cfile, "new->%s.%s = nodesavestr(n->%s.%s);\n", + sp->tag, fp->name, sp->tag, fp->name); + } + break; + case T_INT: + case T_OTHER: + if (! calcsize) { + indent(12, cfile); + fprintf(cfile, "new->%s.%s = n->%s.%s;\n", + sp->tag, fp->name, sp->tag, fp->name); + } + break; + } + } + indent(12, cfile); + fputs("break;\n", cfile); + } + fputs(" };\n", cfile); + if (! calcsize) + fputs(" new->type = n->type;\n", cfile); +} + + +static void +indent(int amount, FILE *fp) +{ + while (amount >= 8) { + putc('\t', fp); + amount -= 8; + } + while (--amount >= 0) { + putc(' ', fp); + } +} + + +static int +nextfield(char *buf) +{ + char *p, *q; + + p = linep; + while (*p == ' ' || *p == '\t') + p++; + q = buf; + while (*p != ' ' && *p != '\t' && *p != '\0') + *q++ = *p++; + *q = '\0'; + linep = p; + return (q > buf); +} + + +static void +skipbl(void) +{ + while (*linep == ' ' || *linep == '\t') + linep++; +} + + +static int +readline(void) +{ + char *p; + + if (fgets(line, 1024, infp) == NULL) + return 0; + for (p = line ; *p != '#' && *p != '\n' && *p != '\0' ; p++); + while (p > line && (p[-1] == ' ' || p[-1] == '\t')) + p--; + *p = '\0'; + linep = line; + linno++; + if (p - line > BUFLEN) + error("Line too long"); + return 1; +} + + + +static void +error(const char *msg, ...) +{ + va_list va; + + va_start(va, msg); + + (void) fprintf(stderr, "line %d: ", linno); + (void) vfprintf(stderr, msg, va); + (void) fputc('\n', stderr); + + va_end(va); + + exit(2); + /* NOTREACHED */ +} + + + +static char * +savestr(const char *s) +{ + char *p; + + if ((p = malloc(strlen(s) + 1)) == NULL) + error("Out of space"); + (void) strcpy(p, s); + return p; +} diff --git a/bin/dash/src/mksignames.c b/bin/dash/src/mksignames.c new file mode 100644 index 00000000..a832eab9 --- /dev/null +++ b/bin/dash/src/mksignames.c @@ -0,0 +1,417 @@ +/* signames.c -- Create and write `signames.c', which contains an array of + signal names. */ + +/* Copyright (C) 1992 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash is free software; you can redistribute it and/or modify it under + the terms of the GNU General Public License as published by the Free + Software Foundation; either version 2, or (at your option) any later + version. + + Bash is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + for more details. + + You should have received a copy of the GNU General Public License along + with Bash; see the file COPYING. If not, write to the Free Software + Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ + +#include <stdio.h> +#include <sys/types.h> +#include <signal.h> +#include <stdlib.h> + +#if !defined (NSIG) +# define NSIG 64 +#endif + +/* + * Special traps: + * EXIT == 0 + */ +#define LASTSIG NSIG-1 + +char *signal_names[2 * NSIG + 3]; + +#define signal_names_size (sizeof(signal_names)/sizeof(signal_names[0])) + +char *progname; + +/* AIX 4.3 defines SIGRTMIN and SIGRTMAX as 888 and 999 respectively. + I don't want to allocate so much unused space for the intervening signal + numbers, so we just punt if SIGRTMAX is past the bounds of the + signal_names array (handled in configure). */ +#if defined (SIGRTMAX) && defined (UNUSABLE_RT_SIGNALS) +# undef SIGRTMAX +# undef SIGRTMIN +#endif + +#if defined (SIGRTMAX) || defined (SIGRTMIN) +# define RTLEN 14 +# define RTLIM 256 +#endif + +void +initialize_signames () +{ + register int i; +#if defined (SIGRTMAX) || defined (SIGRTMIN) + int rtmin, rtmax, rtcnt; +#endif + + for (i = 1; i < signal_names_size; i++) + signal_names[i] = (char *)NULL; + + /* `signal' 0 is what we do on exit. */ + signal_names[0] = "EXIT"; + + /* Place signal names which can be aliases for more common signal + names first. This allows (for example) SIGABRT to overwrite SIGLOST. */ + + /* POSIX 1003.1b-1993 real time signals, but take care of incomplete + implementations. Acoording to the standard, both, SIGRTMIN and + SIGRTMAX must be defined, SIGRTMIN must be stricly less than + SIGRTMAX, and the difference must be at least 7, that is, there + must be at least eight distinct real time signals. */ + + /* The generated signal names are SIGRTMIN, SIGRTMIN+1, ..., + SIGRTMIN+x, SIGRTMAX-x, ..., SIGRTMAX-1, SIGRTMAX. If the number + of RT signals is odd, there is an extra SIGRTMIN+(x+1). + These names are the ones used by ksh and /usr/xpg4/bin/sh on SunOS5. */ + +#if defined (SIGRTMIN) + rtmin = SIGRTMIN; + signal_names[rtmin] = "RTMIN"; +#endif + +#if defined (SIGRTMAX) + rtmax = SIGRTMAX; + signal_names[rtmax] = "RTMAX"; +#endif + +#if defined (SIGRTMAX) && defined (SIGRTMIN) + if (rtmax > rtmin) + { + rtcnt = (rtmax - rtmin - 1) / 2; + /* croak if there are too many RT signals */ + if (rtcnt >= RTLIM/2) + { + rtcnt = RTLIM/2-1; + fprintf(stderr, "%s: error: more than %i real time signals, fix `%s'\n", + progname, RTLIM, progname); + } + + for (i = 1; i <= rtcnt; i++) + { + signal_names[rtmin+i] = (char *)malloc(RTLEN); + if (signal_names[rtmin+i]) + sprintf (signal_names[rtmin+i], "RTMIN+%d", i); + signal_names[rtmax-i] = (char *)malloc(RTLEN); + if (signal_names[rtmax-i]) + sprintf (signal_names[rtmax-i], "RTMAX-%d", i); + } + + if (rtcnt < RTLIM/2-1 && rtcnt != (rtmax-rtmin)/2) + { + /* Need an extra RTMIN signal */ + signal_names[rtmin+rtcnt+1] = (char *)malloc(RTLEN); + if (signal_names[rtmin+rtcnt+1]) + sprintf (signal_names[rtmin+rtcnt+1], "RTMIN+%d", rtcnt+1); + } + } +#endif /* SIGRTMIN && SIGRTMAX */ + +/* AIX */ +#if defined (SIGLOST) /* resource lost (eg, record-lock lost) */ + signal_names[SIGLOST] = "LOST"; +#endif + +#if defined (SIGMSG) /* HFT input data pending */ + signal_names[SIGMSG] = "MSG"; +#endif + +#if defined (SIGDANGER) /* system crash imminent */ + signal_names[SIGDANGER] = "DANGER"; +#endif + +#if defined (SIGMIGRATE) /* migrate process to another CPU */ + signal_names[SIGMIGRATE] = "MIGRATE"; +#endif + +#if defined (SIGPRE) /* programming error */ + signal_names[SIGPRE] = "PRE"; +#endif + +#if defined (SIGVIRT) /* AIX virtual time alarm */ + signal_names[SIGVIRT] = "VIRT"; +#endif + +#if defined (SIGALRM1) /* m:n condition variables */ + signal_names[SIGALRM1] = "ALRM1"; +#endif + +#if defined (SIGWAITING) /* m:n scheduling */ + signal_names[SIGWAITING] = "WAITING"; +#endif + +#if defined (SIGGRANT) /* HFT monitor mode granted */ + signal_names[SIGGRANT] = "GRANT"; +#endif + +#if defined (SIGKAP) /* keep alive poll from native keyboard */ + signal_names[SIGKAP] = "KAP"; +#endif + +#if defined (SIGRETRACT) /* HFT monitor mode retracted */ + signal_names[SIGRETRACT] = "RETRACT"; +#endif + +#if defined (SIGSOUND) /* HFT sound sequence has completed */ + signal_names[SIGSOUND] = "SOUND"; +#endif + +#if defined (SIGSAK) /* Secure Attention Key */ + signal_names[SIGSAK] = "SAK"; +#endif + +/* SunOS5 */ +#if defined (SIGLWP) /* special signal used by thread library */ + signal_names[SIGLWP] = "LWP"; +#endif + +#if defined (SIGFREEZE) /* special signal used by CPR */ + signal_names[SIGFREEZE] = "FREEZE"; +#endif + +#if defined (SIGTHAW) /* special signal used by CPR */ + signal_names[SIGTHAW] = "THAW"; +#endif + +#if defined (SIGCANCEL) /* thread cancellation signal used by libthread */ + signal_names[SIGCANCEL] = "CANCEL"; +#endif + +/* HP-UX */ +#if defined (SIGDIL) /* DIL signal (?) */ + signal_names[SIGDIL] = "DIL"; +#endif + +/* System V */ +#if defined (SIGCLD) /* Like SIGCHLD. */ + signal_names[SIGCLD] = "CLD"; +#endif + +#if defined (SIGPWR) /* power state indication */ + signal_names[SIGPWR] = "PWR"; +#endif + +#if defined (SIGPOLL) /* Pollable event (for streams) */ + signal_names[SIGPOLL] = "POLL"; +#endif + +/* Unknown */ +#if defined (SIGWINDOW) + signal_names[SIGWINDOW] = "WINDOW"; +#endif + +/* Common */ +#if defined (SIGHUP) /* hangup */ + signal_names[SIGHUP] = "HUP"; +#endif + +#if defined (SIGINT) /* interrupt */ + signal_names[SIGINT] = "INT"; +#endif + +#if defined (SIGQUIT) /* quit */ + signal_names[SIGQUIT] = "QUIT"; +#endif + +#if defined (SIGILL) /* illegal instruction (not reset when caught) */ + signal_names[SIGILL] = "ILL"; +#endif + +#if defined (SIGTRAP) /* trace trap (not reset when caught) */ + signal_names[SIGTRAP] = "TRAP"; +#endif + +#if defined (SIGIOT) /* IOT instruction */ + signal_names[SIGIOT] = "IOT"; +#endif + +#if defined (SIGABRT) /* Cause current process to dump core. */ + signal_names[SIGABRT] = "ABRT"; +#endif + +#if defined (SIGEMT) /* EMT instruction */ + signal_names[SIGEMT] = "EMT"; +#endif + +#if defined (SIGFPE) /* floating point exception */ + signal_names[SIGFPE] = "FPE"; +#endif + +#if defined (SIGKILL) /* kill (cannot be caught or ignored) */ + signal_names[SIGKILL] = "KILL"; +#endif + +#if defined (SIGBUS) /* bus error */ + signal_names[SIGBUS] = "BUS"; +#endif + +#if defined (SIGSEGV) /* segmentation violation */ + signal_names[SIGSEGV] = "SEGV"; +#endif + +#if defined (SIGSYS) /* bad argument to system call */ + signal_names[SIGSYS] = "SYS"; +#endif + +#if defined (SIGPIPE) /* write on a pipe with no one to read it */ + signal_names[SIGPIPE] = "PIPE"; +#endif + +#if defined (SIGALRM) /* alarm clock */ + signal_names[SIGALRM] = "ALRM"; +#endif + +#if defined (SIGTERM) /* software termination signal from kill */ + signal_names[SIGTERM] = "TERM"; +#endif + +#if defined (SIGURG) /* urgent condition on IO channel */ + signal_names[SIGURG] = "URG"; +#endif + +#if defined (SIGSTOP) /* sendable stop signal not from tty */ + signal_names[SIGSTOP] = "STOP"; +#endif + +#if defined (SIGTSTP) /* stop signal from tty */ + signal_names[SIGTSTP] = "TSTP"; +#endif + +#if defined (SIGCONT) /* continue a stopped process */ + signal_names[SIGCONT] = "CONT"; +#endif + +#if defined (SIGCHLD) /* to parent on child stop or exit */ + signal_names[SIGCHLD] = "CHLD"; +#endif + +#if defined (SIGTTIN) /* to readers pgrp upon background tty read */ + signal_names[SIGTTIN] = "TTIN"; +#endif + +#if defined (SIGTTOU) /* like TTIN for output if (tp->t_local<OSTOP) */ + signal_names[SIGTTOU] = "TTOU"; +#endif + +#if defined (SIGIO) /* input/output possible signal */ + signal_names[SIGIO] = "IO"; +#endif + +#if defined (SIGXCPU) /* exceeded CPU time limit */ + signal_names[SIGXCPU] = "XCPU"; +#endif + +#if defined (SIGXFSZ) /* exceeded file size limit */ + signal_names[SIGXFSZ] = "XFSZ"; +#endif + +#if defined (SIGVTALRM) /* virtual time alarm */ + signal_names[SIGVTALRM] = "VTALRM"; +#endif + +#if defined (SIGPROF) /* profiling time alarm */ + signal_names[SIGPROF] = "PROF"; +#endif + +#if defined (SIGWINCH) /* window changed */ + signal_names[SIGWINCH] = "WINCH"; +#endif + +/* 4.4 BSD */ +#if defined (SIGINFO) && !defined (_SEQUENT_) /* information request */ + signal_names[SIGINFO] = "INFO"; +#endif + +#if defined (SIGUSR1) /* user defined signal 1 */ + signal_names[SIGUSR1] = "USR1"; +#endif + +#if defined (SIGUSR2) /* user defined signal 2 */ + signal_names[SIGUSR2] = "USR2"; +#endif + +#if defined (SIGKILLTHR) /* BeOS: Kill Thread */ + signal_names[SIGKILLTHR] = "KILLTHR"; +#endif + + for (i = 0; i < NSIG; i++) + if (signal_names[i] == (char *)NULL) + { + signal_names[i] = (char *)malloc (18); + if (signal_names[i]) + sprintf (signal_names[i], "%d", i); + } +} + +void +write_signames (stream) + FILE *stream; +{ + register int i; + + fprintf (stream, "/* This file was automatically created by %s.\n", + progname); + fprintf (stream, " Do not edit. Edit support/mksignames.c instead. */\n\n"); + fprintf (stream, "#include <signal.h>\n\n"); + fprintf (stream, + "/* A translation list so we can be polite to our users. */\n"); + fprintf (stream, "const char *const signal_names[NSIG + 1] = {\n"); + + for (i = 0; i <= LASTSIG; i++) + fprintf (stream, " \"%s\",\n", signal_names[i]); + + fprintf (stream, " (char *)0x0\n"); + fprintf (stream, "};\n"); +} + +int +main(int argc, char **argv) +{ + char *stream_name; + FILE *stream; + + progname = argv[0]; + + if (argc == 1) + { + stream_name = "signames.c"; + } + else if (argc == 2) + { + stream_name = argv[1]; + } + else + { + fprintf (stderr, "Usage: %s [output-file]\n", progname); + exit (1); + } + + stream = fopen (stream_name, "w"); + if (!stream) + { + fprintf (stderr, "%s: %s: cannot open for writing\n", + progname, stream_name); + exit (2); + } + + initialize_signames (); + write_signames (stream); + exit (0); +} diff --git a/bin/dash/src/mksyntax.c b/bin/dash/src/mksyntax.c new file mode 100644 index 00000000..a23c18ca --- /dev/null +++ b/bin/dash/src/mksyntax.c @@ -0,0 +1,315 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * This program creates syntax.h and syntax.c. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include "parser.h" + + +struct synclass { + char *name; + char *comment; +}; + +/* Syntax classes */ +struct synclass synclass[] = { + { "CWORD", "character is nothing special" }, + { "CNL", "newline character" }, + { "CBACK", "a backslash character" }, + { "CSQUOTE", "single quote" }, + { "CDQUOTE", "double quote" }, + { "CENDQUOTE", "a terminating quote" }, + { "CBQUOTE", "backwards single quote" }, + { "CVAR", "a dollar sign" }, + { "CENDVAR", "a '}' character" }, + { "CLP", "a left paren in arithmetic" }, + { "CRP", "a right paren in arithmetic" }, + { "CEOF", "end of file" }, + { "CCTL", "like CWORD, except it must be escaped" }, + { "CSPCL", "these terminate a word" }, + { "CIGN", "character should be ignored" }, + { NULL, NULL } +}; + + +/* + * Syntax classes for is_ functions. Warning: if you add new classes + * you may have to change the definition of the is_in_name macro. + */ +struct synclass is_entry[] = { + { "ISDIGIT", "a digit" }, + { "ISUPPER", "an upper case letter" }, + { "ISLOWER", "a lower case letter" }, + { "ISUNDER", "an underscore" }, + { "ISSPECL", "the name of a special parameter" }, + { NULL, NULL } +}; + +static char writer[] = "\ +/*\n\ + * This file was generated by the mksyntax program.\n\ + */\n\ +\n"; + + +static FILE *cfile; +static FILE *hfile; +static char *syntax[513]; + +static void filltable(char *); +static void init(void); +static void add(char *, char *); +static void print(char *); +static void output_type_macros(void); +int main(int, char **); + +int +main(int argc, char **argv) +{ + int i; + char buf[80]; + int pos; + + /* Create output files */ + if ((cfile = fopen("syntax.c", "w")) == NULL) { + perror("syntax.c"); + exit(2); + } + if ((hfile = fopen("syntax.h", "w")) == NULL) { + perror("syntax.h"); + exit(2); + } + fputs(writer, hfile); + fputs(writer, cfile); + + fputs("#include <ctype.h>\n", hfile); + fputs("\n", hfile); + fputs("#ifdef CEOF\n", hfile); + fputs("#undef CEOF\n", hfile); + fputs("#endif\n", hfile); + fputs("\n", hfile); + + /* Generate the #define statements in the header file */ + fputs("/* Syntax classes */\n", hfile); + for (i = 0 ; synclass[i].name ; i++) { + sprintf(buf, "#define %s %d", synclass[i].name, i); + fputs(buf, hfile); + for (pos = strlen(buf) ; pos < 32 ; pos = (pos + 8) & ~07) + putc('\t', hfile); + fprintf(hfile, "/* %s */\n", synclass[i].comment); + } + putc('\n', hfile); + fputs("/* Syntax classes for is_ functions */\n", hfile); + for (i = 0 ; is_entry[i].name ; i++) { + sprintf(buf, "#define %s %#o", is_entry[i].name, 1 << i); + fputs(buf, hfile); + for (pos = strlen(buf) ; pos < 32 ; pos = (pos + 8) & ~07) + putc('\t', hfile); + fprintf(hfile, "/* %s */\n", is_entry[i].comment); + } + putc('\n', hfile); + fprintf(hfile, "#define SYNBASE %d\n", 130); + fprintf(hfile, "#define PEOF %d\n\n", -130); + fprintf(hfile, "#define PEOA %d\n\n", -129); + putc('\n', hfile); + fputs("#define BASESYNTAX (basesyntax + SYNBASE)\n", hfile); + fputs("#define DQSYNTAX (dqsyntax + SYNBASE)\n", hfile); + fputs("#define SQSYNTAX (sqsyntax + SYNBASE)\n", hfile); + fputs("#define ARISYNTAX (arisyntax + SYNBASE)\n", hfile); + putc('\n', hfile); + output_type_macros(); /* is_digit, etc. */ + putc('\n', hfile); + + /* Generate the syntax tables. */ + fputs("#include \"shell.h\"\n", cfile); + fputs("#include \"syntax.h\"\n\n", cfile); + init(); + fputs("/* syntax table used when not in quotes */\n", cfile); + add("\n", "CNL"); + add("\\", "CBACK"); + add("'", "CSQUOTE"); + add("\"", "CDQUOTE"); + add("`", "CBQUOTE"); + add("$", "CVAR"); + add("}", "CENDVAR"); + add("<>();&| \t", "CSPCL"); + syntax[1] = "CSPCL"; + print("basesyntax"); + init(); + fputs("\n/* syntax table used when in double quotes */\n", cfile); + add("\n", "CNL"); + add("\\", "CBACK"); + add("\"", "CENDQUOTE"); + add("`", "CBQUOTE"); + add("$", "CVAR"); + add("}", "CENDVAR"); + /* ':/' for tilde expansion, '-' for [a\-x] pattern ranges */ + add("!*?[=~:/-]", "CCTL"); + print("dqsyntax"); + init(); + fputs("\n/* syntax table used when in single quotes */\n", cfile); + add("\n", "CNL"); + add("'", "CENDQUOTE"); + /* ':/' for tilde expansion, '-' for [a\-x] pattern ranges */ + add("!*?[=~:/-]\\", "CCTL"); + print("sqsyntax"); + init(); + fputs("\n/* syntax table used when in arithmetic */\n", cfile); + add("\n", "CNL"); + add("\\", "CBACK"); + add("`", "CBQUOTE"); + add("$", "CVAR"); + add("}", "CENDVAR"); + add("(", "CLP"); + add(")", "CRP"); + print("arisyntax"); + filltable("0"); + fputs("\n/* character classification table */\n", cfile); + add("0123456789", "ISDIGIT"); + add("abcdefghijklmnopqrstucvwxyz", "ISLOWER"); + add("ABCDEFGHIJKLMNOPQRSTUCVWXYZ", "ISUPPER"); + add("_", "ISUNDER"); + add("#?$!-*@", "ISSPECL"); + print("is_type"); + exit(0); + /* NOTREACHED */ +} + + + +/* + * Clear the syntax table. + */ + +static void +filltable(char *dftval) +{ + int i; + + for (i = 0 ; i < 258; i++) + syntax[i] = dftval; +} + + +/* + * Initialize the syntax table with default values. + */ + +static void +init(void) +{ + int ctl; + + filltable("CWORD"); + syntax[0] = "CEOF"; + syntax[1] = "CIGN"; + for (ctl = CTL_FIRST; ctl <= CTL_LAST; ctl++ ) + syntax[130 + ctl] = "CCTL"; +} + + +/* + * Add entries to the syntax table. + */ + +static void +add(char *p, char *type) +{ + while (*p) + syntax[(signed char)*p++ + 130] = type; +} + + + +/* + * Output the syntax table. + */ + +static void +print(char *name) +{ + int i; + int col; + + fprintf(hfile, "extern const char %s[];\n", name); + fprintf(cfile, "const char %s[] = {\n", name); + col = 0; + for (i = 0 ; i < 258; i++) { + if (i == 0) { + fputs(" ", cfile); + } else if ((i & 03) == 0) { + fputs(",\n ", cfile); + col = 0; + } else { + putc(',', cfile); + while (++col < 9 * (i & 03)) + putc(' ', cfile); + } + fputs(syntax[i], cfile); + col += strlen(syntax[i]); + } + fputs("\n};\n", cfile); +} + + + +/* + * Output character classification macros (e.g. is_digit). If digits are + * contiguous, we can test for them quickly. + */ + +static char *macro[] = { + "#define is_digit(c)\t((unsigned)((c) - '0') <= 9)\n", + "#define is_alpha(c)\tisalpha((unsigned char)(c))\n", + "#define is_name(c)\t((c) == '_' || isalpha((unsigned char)(c)))\n", + "#define is_in_name(c)\t((c) == '_' || isalnum((unsigned char)(c)))\n", + "#define is_special(c)\t((is_type+SYNBASE)[(signed char)(c)] & (ISSPECL|ISDIGIT))\n", + NULL +}; + +static void +output_type_macros(void) +{ + char **pp; + + for (pp = macro ; *pp ; pp++) + fputs(*pp, hfile); + fputs("#define digit_val(c)\t((c) - '0')\n", hfile); +} diff --git a/bin/dash/src/mktokens b/bin/dash/src/mktokens new file mode 100644 index 00000000..78055be8 --- /dev/null +++ b/bin/dash/src/mktokens @@ -0,0 +1,97 @@ +#!/bin/sh - +# Copyright (c) 1991, 1993 +# The Regents of the University of California. All rights reserved. +# Copyright (c) 1997-2005 +# Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. +# +# This code is derived from software contributed to Berkeley by +# Kenneth Almquist. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# 3. Neither the name of the University nor the names of its contributors +# may be used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# @(#)mktokens 8.1 (Berkeley) 5/31/93 + +# The following is a list of tokens. The second column is nonzero if the +# token marks the end of a list. The third column is the name to print in +# error messages. + +: "${TMPDIR:=/tmp}" + +cat > "${TMPDIR}"/ka$$ <<\! +TEOF 1 end of file +TNL 0 newline +TSEMI 0 ";" +TBACKGND 0 "&" +TAND 0 "&&" +TOR 0 "||" +TPIPE 0 "|" +TLP 0 "(" +TRP 1 ")" +TENDCASE 1 ";;" +TENDBQUOTE 1 "`" +TREDIR 0 redirection +TWORD 0 word +TNOT 0 "!" +TCASE 0 "case" +TDO 1 "do" +TDONE 1 "done" +TELIF 1 "elif" +TELSE 1 "else" +TESAC 1 "esac" +TFI 1 "fi" +TFOR 0 "for" +TIF 0 "if" +TIN 0 "in" +TTHEN 1 "then" +TUNTIL 0 "until" +TWHILE 0 "while" +TBEGIN 0 "{" +TEND 1 "}" +! +nl=`wc -l "${TMPDIR}"/ka$$` +exec > token.h +awk '{print "#define " $1 " " NR-1}' "${TMPDIR}"/ka$$ + +exec > token_vars.h + +echo ' +/* Array indicating which tokens mark the end of a list */ +static const char tokendlist[] = {' +awk '{print "\t" $2 ","}' "${TMPDIR}"/ka$$ +echo '}; + +static const char *const tokname[] = {' +sed -e 's/"/\\"/g' \ + -e 's/[^ ]*[ ][ ]*[^ ]*[ ][ ]*\(.*\)/ "\1",/' \ + "${TMPDIR}"/ka$$ +echo '}; +' +sed 's/"//g' "${TMPDIR}"/ka$$ | awk ' +/TNOT/{print "#define KWDOFFSET " NR-1; print ""; + print "static const char *const parsekwd[] = {"} +/TNOT/,/neverfound/{if (last) print " \"" last "\","; last = $3} +END{print " \"" last "\"\n};"}' + +rm "${TMPDIR}"/ka$$ diff --git a/bin/dash/src/myhistedit.h b/bin/dash/src/myhistedit.h new file mode 100644 index 00000000..22e5c438 --- /dev/null +++ b/bin/dash/src/myhistedit.h @@ -0,0 +1,46 @@ +/*- + * Copyright (c) 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)myhistedit.h 8.2 (Berkeley) 5/4/95 + */ + +#include <histedit.h> + +extern History *hist; +extern EditLine *el; +extern int displayhist; + +void histedit(void); +void sethistsize(const char *); +void setterm(const char *); +int histcmd(int, char **); +int not_fcnumber(char *); +int str_to_event(const char *, int); + diff --git a/bin/dash/src/mystring.c b/bin/dash/src/mystring.c new file mode 100644 index 00000000..de624b89 --- /dev/null +++ b/bin/dash/src/mystring.c @@ -0,0 +1,257 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * String functions. + * + * equal(s1, s2) Return true if strings are equal. + * scopy(from, to) Copy a string. + * scopyn(from, to, n) Like scopy, but checks for overflow. + * number(s) Convert a string of digits to an integer. + * is_number(s) Return true if s is a string of digits. + */ + +#include <ctype.h> +#include <errno.h> +#include <inttypes.h> +#include <limits.h> +#include <inttypes.h> +#include <stdlib.h> +#include "shell.h" +#include "syntax.h" +#include "error.h" +#include "mystring.h" +#include "memalloc.h" +#include "parser.h" +#include "system.h" + + +char nullstr[1]; /* zero length string */ +const char spcstr[] = " "; +const char snlfmt[] = "%s\n"; +const char dolatstr[] = { CTLQUOTEMARK, CTLVAR, VSNORMAL, '@', '=', + CTLQUOTEMARK, '\0' }; +const char qchars[] = { CTLESC, CTLQUOTEMARK, 0 }; +const char illnum[] = "Illegal number: %s"; +const char homestr[] = "HOME"; + +/* + * equal - #defined in mystring.h + */ + +/* + * scopy - #defined in mystring.h + */ + + +#if 0 +/* + * scopyn - copy a string from "from" to "to", truncating the string + * if necessary. "To" is always nul terminated, even if + * truncation is performed. "Size" is the size of "to". + */ + +void +scopyn(const char *from, char *to, int size) +{ + + while (--size > 0) { + if ((*to++ = *from++) == '\0') + return; + } + *to = '\0'; +} +#endif + + +/* + * prefix -- see if pfx is a prefix of string. + */ + +char * +prefix(const char *string, const char *pfx) +{ + while (*pfx) { + if (*pfx++ != *string++) + return 0; + } + return (char *) string; +} + +void badnum(const char *s) +{ + sh_error(illnum, s); +} + +/* + * Convert a string into an integer of type intmax_t. Alow trailing spaces. + */ +intmax_t atomax(const char *s, int base) +{ + char *p; + intmax_t r; + + errno = 0; + r = strtoimax(s, &p, base); + + if (errno == ERANGE) + badnum(s); + + /* + * Disallow completely blank strings in non-arithmetic (base != 0) + * contexts. + */ + if (p == s && base) + badnum(s); + + while (isspace((unsigned char)*p)) + p++; + + if (*p) + badnum(s); + + return r; +} + +intmax_t atomax10(const char *s) +{ + return atomax(s, 10); +} + +/* + * Convert a string of digits to an integer, printing an error message on + * failure. + */ + +int +number(const char *s) +{ + intmax_t n = atomax10(s); + + if (n < 0 || n > INT_MAX) + badnum(s); + + return n; +} + + + +/* + * Check for a valid number. This should be elsewhere. + */ + +int +is_number(const char *p) +{ + do { + if (! is_digit(*p)) + return 0; + } while (*++p != '\0'); + return 1; +} + + +/* + * Produce a possibly single quoted string suitable as input to the shell. + * The return string is allocated on the stack. + */ + +char * +single_quote(const char *s) { + char *p; + + STARTSTACKSTR(p); + + do { + char *q; + size_t len; + + len = strchrnul(s, '\'') - s; + + q = p = makestrspace(len + 3, p); + + *q++ = '\''; + q = mempcpy(q, s, len); + *q++ = '\''; + s += len; + + STADJUST(q - p, p); + + len = strspn(s, "'"); + if (!len) + break; + + q = p = makestrspace(len + 3, p); + + *q++ = '"'; + q = mempcpy(q, s, len); + *q++ = '"'; + s += len; + + STADJUST(q - p, p); + } while (*s); + + USTPUTC(0, p); + + return stackblock(); +} + +/* + * Like strdup but works with the ash stack. + */ + +char * +sstrdup(const char *p) +{ + size_t len = strlen(p) + 1; + return memcpy(stalloc(len), p, len); +} + +/* + * Wrapper around strcmp for qsort/bsearch/... + */ +int +pstrcmp(const void *a, const void *b) +{ + return strcmp(*(const char *const *) a, *(const char *const *) b); +} + +/* + * Find a string is in a sorted array. + */ +const char *const * +findstring(const char *s, const char *const *array, size_t nmemb) +{ + return bsearch(&s, array, nmemb, sizeof(const char *), pstrcmp); +} diff --git a/bin/dash/src/mystring.h b/bin/dash/src/mystring.h new file mode 100644 index 00000000..083ea98c --- /dev/null +++ b/bin/dash/src/mystring.h @@ -0,0 +1,63 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)mystring.h 8.2 (Berkeley) 5/4/95 + */ + +#include <inttypes.h> +#include <string.h> + +extern const char snlfmt[]; +extern const char spcstr[]; +extern const char dolatstr[]; +#define DOLATSTRLEN 6 +extern const char qchars[]; +extern const char illnum[]; +extern const char homestr[]; + +#if 0 +void scopyn(const char *, char *, int); +#endif +char *prefix(const char *, const char *); +void badnum(const char *s) __attribute__ ((noreturn)); +intmax_t atomax(const char *, int); +intmax_t atomax10(const char *); +int number(const char *); +int is_number(const char *); +char *single_quote(const char *); +char *sstrdup(const char *); +int pstrcmp(const void *, const void *); +const char *const *findstring(const char *, const char *const *, size_t); + +#define equal(s1, s2) (strcmp(s1, s2) == 0) +#define scopy(s1, s2) ((void)strcpy(s2, s1)) diff --git a/bin/dash/src/nodes.c.pat b/bin/dash/src/nodes.c.pat new file mode 100644 index 00000000..9125bc73 --- /dev/null +++ b/bin/dash/src/nodes.c.pat @@ -0,0 +1,166 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)nodes.c.pat 8.2 (Berkeley) 5/4/95 + */ + +#include <stdlib.h> +/* + * Routine for dealing with parsed shell commands. + */ + +#include "shell.h" +#include "nodes.h" +#include "memalloc.h" +#include "machdep.h" +#include "mystring.h" +#include "system.h" + + +int funcblocksize; /* size of structures in function */ +int funcstringsize; /* size of strings in node */ +pointer funcblock; /* block to allocate function from */ +char *funcstring; /* block to allocate strings from */ + +%SIZES + + +STATIC void calcsize(union node *); +STATIC void sizenodelist(struct nodelist *); +STATIC union node *copynode(union node *); +STATIC struct nodelist *copynodelist(struct nodelist *); +STATIC char *nodesavestr(char *); + + + +/* + * Make a copy of a parse tree. + */ + +struct funcnode * +copyfunc(union node *n) +{ + struct funcnode *f; + size_t blocksize; + + funcblocksize = offsetof(struct funcnode, n); + funcstringsize = 0; + calcsize(n); + blocksize = funcblocksize; + f = ckmalloc(blocksize + funcstringsize); + funcblock = (char *) f + offsetof(struct funcnode, n); + funcstring = (char *) f + blocksize; + copynode(n); + f->count = 0; + return f; +} + + + +STATIC void +calcsize(n) + union node *n; +{ + %CALCSIZE +} + + + +STATIC void +sizenodelist(lp) + struct nodelist *lp; +{ + while (lp) { + funcblocksize += SHELL_ALIGN(sizeof(struct nodelist)); + calcsize(lp->n); + lp = lp->next; + } +} + + + +STATIC union node * +copynode(n) + union node *n; +{ + union node *new; + + %COPY + return new; +} + + +STATIC struct nodelist * +copynodelist(lp) + struct nodelist *lp; +{ + struct nodelist *start; + struct nodelist **lpp; + + lpp = &start; + while (lp) { + *lpp = funcblock; + funcblock = (char *) funcblock + + SHELL_ALIGN(sizeof(struct nodelist)); + (*lpp)->n = copynode(lp->n); + lp = lp->next; + lpp = &(*lpp)->next; + } + *lpp = NULL; + return start; +} + + + +STATIC char * +nodesavestr(s) + char *s; +{ + char *rtn = funcstring; + + funcstring = stpcpy(funcstring, s) + 1; + return rtn; +} + + + +/* + * Free a parse tree. + */ + +void +freefunc(struct funcnode *f) +{ + if (f && --f->count < 0) + ckfree(f); +} diff --git a/bin/dash/src/nodetypes b/bin/dash/src/nodetypes new file mode 100644 index 00000000..ceaf478c --- /dev/null +++ b/bin/dash/src/nodetypes @@ -0,0 +1,151 @@ +# Copyright (c) 1991, 1993 +# The Regents of the University of California. All rights reserved. +# Copyright (c) 1997-2005 +# Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. +# +# This code is derived from software contributed to Berkeley by +# Kenneth Almquist. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# 3. Neither the name of the University nor the names of its contributors +# may be used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# @(#)nodetypes 8.2 (Berkeley) 5/4/95 + +# This file describes the nodes used in parse trees. Unindented lines +# contain a node type followed by a structure tag. Subsequent indented +# lines specify the fields of the structure. Several node types can share +# the same structure, in which case the fields of the structure should be +# specified only once. +# +# A field of a structure is described by the name of the field followed +# by a type. The currently implemented types are: +# nodeptr - a pointer to a node +# nodelist - a pointer to a list of nodes +# string - a pointer to a nul terminated string +# int - an integer +# other - any type that can be copied by assignment +# temp - a field that doesn't have to be copied when the node is copied +# The last two types should be followed by the text of a C declaration for +# the field. + +NCMD ncmd # a simple command + type int + linno int + assign nodeptr # variable assignments + args nodeptr # the arguments + redirect nodeptr # list of file redirections + +NPIPE npipe # a pipeline + type int + backgnd int # set to run pipeline in background + cmdlist nodelist # the commands in the pipeline + +NREDIR nredir # redirection (of a complex command) + type int + linno int + n nodeptr # the command + redirect nodeptr # list of file redirections + +NBACKGND nredir # run command in background +NSUBSHELL nredir # run command in a subshell + +NAND nbinary # the && operator +NOR nbinary # the || operator + +NSEMI nbinary # two commands separated by a semicolon + type int + ch1 nodeptr # the first child + ch2 nodeptr # the second child + +NIF nif # the if statement. Elif clauses are handled + type int # using multiple if nodes. + test nodeptr # if test + ifpart nodeptr # then ifpart + elsepart nodeptr # else elsepart + +NWHILE nbinary # the while statement. First child is the test +NUNTIL nbinary # the until statement + +NFOR nfor # the for statement + type int + linno int + args nodeptr # for var in args + body nodeptr # do body; done + var string # the for variable + +NCASE ncase # a case statement + type int + linno int + expr nodeptr # the word to switch on + cases nodeptr # the list of cases (NCLIST nodes) + +NCLIST nclist # a case + type int + next nodeptr # the next case in list + pattern nodeptr # list of patterns for this case + body nodeptr # code to execute for this case + + +NDEFUN ndefun # a function + type int + linno int + text string + body nodeptr + +NARG narg # represents a word + type int + next nodeptr # next word in list + text string # the text of the word + backquote nodelist # list of commands in back quotes + +NTO nfile # fd> fname +NCLOBBER nfile # fd>| fname +NFROM nfile # fd< fname +NFROMTO nfile # fd<> fname +NAPPEND nfile # fd>> fname + type int + next nodeptr # next redirection in list + fd int # file descriptor being redirected + fname nodeptr # file name, in a NARG node + expfname temp char *expfname # actual file name + +NTOFD ndup # fd<&dupfd +NFROMFD ndup # fd>&dupfd + type int + next nodeptr # next redirection in list + fd int # file descriptor being redirected + dupfd int # file descriptor to duplicate + vname nodeptr # file name if fd>&$var + + +NHERE nhere # fd<<\! +NXHERE nhere # fd<<! + type int + next nodeptr # next redirection in list + fd int # file descriptor being redirected + doc nodeptr # input to command (NARG node) + +NNOT nnot # ! command (actually pipeline) + type int + com nodeptr diff --git a/bin/dash/src/options.c b/bin/dash/src/options.c new file mode 100644 index 00000000..a46c23b9 --- /dev/null +++ b/bin/dash/src/options.c @@ -0,0 +1,558 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <signal.h> +#include <unistd.h> +#include <stdlib.h> + +#include "shell.h" +#define DEFINE_OPTIONS +#include "options.h" +#undef DEFINE_OPTIONS +#include "nodes.h" /* for other header files */ +#include "eval.h" +#include "jobs.h" +#include "input.h" +#include "output.h" +#include "trap.h" +#include "var.h" +#include "memalloc.h" +#include "error.h" +#include "mystring.h" +#ifndef SMALL +#include "myhistedit.h" +#endif +#include "show.h" + +char *arg0; /* value of $0 */ +struct shparam shellparam; /* current positional parameters */ +char **argptr; /* argument list for builtin commands */ +char *optionarg; /* set by nextopt (like getopt) */ +char *optptr; /* used by nextopt */ + +char *minusc; /* argument to -c option */ + +static const char *const optnames[NOPTS] = { + "errexit", + "noglob", + "ignoreeof", + "interactive", + "monitor", + "noexec", + "stdin", + "xtrace", + "verbose", + "vi", + "emacs", + "noclobber", + "allexport", + "notify", + "nounset", + "nolog", + "debug", +}; + +const char optletters[NOPTS] = { + 'e', + 'f', + 'I', + 'i', + 'm', + 'n', + 's', + 'x', + 'v', + 'V', + 'E', + 'C', + 'a', + 'b', + 'u', + 0, + 0, +}; + +char optlist[NOPTS]; + + +static int options(int); +STATIC void minus_o(char *, int); +STATIC void setoption(int, int); +STATIC int getopts(char *, char *, char **); + + +/* + * Process the shell command line arguments. + */ + +int +procargs(int argc, char **argv) +{ + int i; + const char *xminusc; + char **xargv; + int login; + + xargv = argv; + login = xargv[0] && xargv[0][0] == '-'; + arg0 = xargv[0]; + if (argc > 0) + xargv++; + for (i = 0; i < NOPTS; i++) + optlist[i] = 2; + argptr = xargv; + login |= options(1); + xargv = argptr; + xminusc = minusc; + if (*xargv == NULL) { + if (xminusc) + sh_error("-c requires an argument"); + sflag = 1; + } + if (iflag == 2 && sflag == 1 && isatty(0) && isatty(1)) + iflag = 1; + if (mflag == 2) + mflag = iflag; + for (i = 0; i < NOPTS; i++) + if (optlist[i] == 2) + optlist[i] = 0; +#if DEBUG == 2 + debug = 1; +#endif + /* POSIX 1003.2: first arg after -c cmd is $0, remainder $1... */ + if (xminusc) { + minusc = *xargv++; + if (*xargv) + goto setarg0; + } else if (!sflag) { + setinputfile(*xargv, 0); +setarg0: + arg0 = *xargv++; + } + + shellparam.p = xargv; + shellparam.optind = 1; + shellparam.optoff = -1; + /* assert(shellparam.malloc == 0 && shellparam.nparam == 0); */ + while (*xargv) { + shellparam.nparam++; + xargv++; + } + optschanged(); + + return login; +} + + +void +optschanged(void) +{ +#ifdef DEBUG + opentrace(); +#endif + setinteractive(iflag); +#ifndef SMALL + histedit(); +#endif + setjobctl(mflag); +} + +/* + * Process shell options. The global variable argptr contains a pointer + * to the argument list; we advance it past the options. + */ + +STATIC int +options(int cmdline) +{ + char *p; + int val; + int c; + int login = 0; + + if (cmdline) + minusc = NULL; + while ((p = *argptr) != NULL) { + argptr++; + if ((c = *p++) == '-') { + val = 1; + if (p[0] == '\0' || (p[0] == '-' && p[1] == '\0')) { + if (!cmdline) { + /* "-" means turn off -x and -v */ + if (p[0] == '\0') + xflag = vflag = 0; + /* "--" means reset params */ + else if (*argptr == NULL) + setparam(argptr); + } + break; /* "-" or "--" terminates options */ + } + } else if (c == '+') { + val = 0; + } else { + argptr--; + break; + } + while ((c = *p++) != '\0') { + if (c == 'c' && cmdline) { + minusc = p; /* command is after shell args*/ + } else if (c == 'l' && cmdline) { + login = 1; + } else if (c == 'o') { + minus_o(*argptr, val); + if (*argptr) + argptr++; + } else { + setoption(c, val); + } + } + } + + return login; +} + +STATIC void +minus_o(char *name, int val) +{ + int i; + + if (name == NULL) { + if (val) { + out1str("Current option settings\n"); + for (i = 0; i < NOPTS; i++) + out1fmt("%-16s%s\n", optnames[i], + optlist[i] ? "on" : "off"); + } else { + for (i = 0; i < NOPTS; i++) + out1fmt("set %s %s\n", + optlist[i] ? "-o" : "+o", + optnames[i]); + + } + } else { + for (i = 0; i < NOPTS; i++) + if (equal(name, optnames[i])) { + optlist[i] = val; + return; + } + sh_error("Illegal option -o %s", name); + } +} + + +STATIC void +setoption(int flag, int val) +{ + int i; + + for (i = 0; i < NOPTS; i++) + if (optletters[i] == flag) { + optlist[i] = val; + if (val) { + /* #%$ hack for ksh semantics */ + if (flag == 'V') + Eflag = 0; + else if (flag == 'E') + Vflag = 0; + } + return; + } + sh_error("Illegal option -%c", flag); + /* NOTREACHED */ +} + + + +/* + * Set the shell parameters. + */ + +void +setparam(char **argv) +{ + char **newparam; + char **ap; + int nparam; + + for (nparam = 0 ; argv[nparam] ; nparam++); + ap = newparam = ckmalloc((nparam + 1) * sizeof *ap); + while (*argv) { + *ap++ = savestr(*argv++); + } + *ap = NULL; + freeparam(&shellparam); + shellparam.malloc = 1; + shellparam.nparam = nparam; + shellparam.p = newparam; + shellparam.optind = 1; + shellparam.optoff = -1; +} + + +/* + * Free the list of positional parameters. + */ + +void +freeparam(volatile struct shparam *param) +{ + char **ap; + + if (param->malloc) { + for (ap = param->p ; *ap ; ap++) + ckfree(*ap); + ckfree(param->p); + } +} + + + +/* + * The shift builtin command. + */ + +int +shiftcmd(int argc, char **argv) +{ + int n; + char **ap1, **ap2; + + n = 1; + if (argc > 1) + n = number(argv[1]); + if (n > shellparam.nparam) + sh_error("can't shift that many"); + INTOFF; + shellparam.nparam -= n; + for (ap1 = shellparam.p ; --n >= 0 ; ap1++) { + if (shellparam.malloc) + ckfree(*ap1); + } + ap2 = shellparam.p; + while ((*ap2++ = *ap1++) != NULL); + shellparam.optind = 1; + shellparam.optoff = -1; + INTON; + return 0; +} + + + +/* + * The set command builtin. + */ + +int +setcmd(int argc, char **argv) +{ + if (argc == 1) + return showvars(nullstr, 0, VUNSET); + INTOFF; + options(0); + optschanged(); + if (*argptr != NULL) { + setparam(argptr); + } + INTON; + return 0; +} + + +void +getoptsreset(value) + const char *value; +{ + shellparam.optind = number(value) ?: 1; + shellparam.optoff = -1; +} + +/* + * The getopts builtin. Shellparam.optnext points to the next argument + * to be processed. Shellparam.optptr points to the next character to + * be processed in the current argument. If shellparam.optnext is NULL, + * then it's the first time getopts has been called. + */ + +int +getoptscmd(int argc, char **argv) +{ + char **optbase; + + if (argc < 3) + sh_error("Usage: getopts optstring var [arg]"); + else if (argc == 3) { + optbase = shellparam.p; + if ((unsigned)shellparam.optind > shellparam.nparam + 1) { + shellparam.optind = 1; + shellparam.optoff = -1; + } + } + else { + optbase = &argv[3]; + if ((unsigned)shellparam.optind > argc - 2) { + shellparam.optind = 1; + shellparam.optoff = -1; + } + } + + return getopts(argv[1], argv[2], optbase); +} + +STATIC int +getopts(char *optstr, char *optvar, char **optfirst) +{ + char *p, *q; + char c = '?'; + int done = 0; + char s[2]; + char **optnext; + int ind = shellparam.optind; + int off = shellparam.optoff; + + shellparam.optind = -1; + optnext = optfirst + ind - 1; + + if (ind <= 1 || off < 0 || strlen(optnext[-1]) < off) + p = NULL; + else + p = optnext[-1] + off; + if (p == NULL || *p == '\0') { + /* Current word is done, advance */ + p = *optnext; + if (p == NULL || *p != '-' || *++p == '\0') { +atend: + p = NULL; + done = 1; + goto out; + } + optnext++; + if (p[0] == '-' && p[1] == '\0') /* check for "--" */ + goto atend; + } + + c = *p++; + for (q = optstr; *q != c; ) { + if (*q == '\0') { + if (optstr[0] == ':') { + s[0] = c; + s[1] = '\0'; + setvar("OPTARG", s, 0); + } else { + outfmt(&errout, "Illegal option -%c\n", c); + (void) unsetvar("OPTARG"); + } + c = '?'; + goto out; + } + if (*++q == ':') + q++; + } + + if (*++q == ':') { + if (*p == '\0' && (p = *optnext) == NULL) { + if (optstr[0] == ':') { + s[0] = c; + s[1] = '\0'; + setvar("OPTARG", s, 0); + c = ':'; + } else { + outfmt(&errout, "No arg for -%c option\n", c); + (void) unsetvar("OPTARG"); + c = '?'; + } + goto out; + } + + if (p == *optnext) + optnext++; + setvar("OPTARG", p, 0); + p = NULL; + } else + setvar("OPTARG", nullstr, 0); + +out: + ind = optnext - optfirst + 1; + setvarint("OPTIND", ind, VNOFUNC); + s[0] = c; + s[1] = '\0'; + setvar(optvar, s, 0); + + shellparam.optoff = p ? p - *(optnext - 1) : -1; + shellparam.optind = ind; + + return done; +} + +/* + * XXX - should get rid of. have all builtins use getopt(3). the + * library getopt must have the BSD extension static variable "optreset" + * otherwise it can't be used within the shell safely. + * + * Standard option processing (a la getopt) for builtin routines. The + * only argument that is passed to nextopt is the option string; the + * other arguments are unnecessary. It return the character, or '\0' on + * end of input. + */ + +int +nextopt(const char *optstring) +{ + char *p; + const char *q; + char c; + + if ((p = optptr) == NULL || *p == '\0') { + p = *argptr; + if (p == NULL || *p != '-' || *++p == '\0') + return '\0'; + argptr++; + if (p[0] == '-' && p[1] == '\0') /* check for "--" */ + return '\0'; + } + c = *p++; + for (q = optstring ; *q != c ; ) { + if (*q == '\0') + sh_error("Illegal option -%c", c); + if (*++q == ':') + q++; + } + if (*++q == ':') { + if (*p == '\0' && (p = *argptr++) == NULL) + sh_error("No arg for -%c option", c); + optionarg = p; + p = NULL; + } + optptr = p; + return c; +} diff --git a/bin/dash/src/options.h b/bin/dash/src/options.h new file mode 100644 index 00000000..975fe339 --- /dev/null +++ b/bin/dash/src/options.h @@ -0,0 +1,86 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)options.h 8.2 (Berkeley) 5/4/95 + */ + +struct shparam { + int nparam; /* # of positional parameters (without $0) */ + unsigned char malloc; /* if parameter list dynamically allocated */ + char **p; /* parameter list */ + int optind; /* next parameter to be processed by getopts */ + int optoff; /* used by getopts */ +}; + + + +#define eflag optlist[0] +#define fflag optlist[1] +#define Iflag optlist[2] +#define iflag optlist[3] +#define mflag optlist[4] +#define nflag optlist[5] +#define sflag optlist[6] +#define xflag optlist[7] +#define vflag optlist[8] +#define Vflag optlist[9] +#define Eflag optlist[10] +#define Cflag optlist[11] +#define aflag optlist[12] +#define bflag optlist[13] +#define uflag optlist[14] +#define nolog optlist[15] +#define debug optlist[16] + +#define NOPTS 17 + +extern const char optletters[NOPTS]; +extern char optlist[NOPTS]; + + +extern char *minusc; /* argument to -c option */ +extern char *arg0; /* $0 */ +extern struct shparam shellparam; /* $@ */ +extern char **argptr; /* argument list for builtin commands */ +extern char *optionarg; /* set by nextopt */ +extern char *optptr; /* used by nextopt */ + +int procargs(int, char **); +void optschanged(void); +void setparam(char **); +void freeparam(volatile struct shparam *); +int shiftcmd(int, char **); +int setcmd(int, char **); +int getoptscmd(int, char **); +int nextopt(const char *); +void getoptsreset(const char *); diff --git a/bin/dash/src/output.c b/bin/dash/src/output.c new file mode 100644 index 00000000..e9ee9b4d --- /dev/null +++ b/bin/dash/src/output.c @@ -0,0 +1,429 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * Shell output routines. We use our own output routines because: + * When a builtin command is interrupted we have to discard + * any pending output. + * When a builtin command appears in back quotes, we want to + * save the output of the command in a region obtained + * via malloc, rather than doing a fork and reading the + * output of the command via a pipe. + * Our output routines may be smaller than the stdio routines. + */ + +#include <sys/types.h> /* quad_t */ +#include <sys/param.h> /* BSD4_4 */ +#include <sys/ioctl.h> + +#include <stdio.h> /* defines BUFSIZ */ +#include <string.h> +#include <unistd.h> +#include <stdlib.h> +#ifdef USE_GLIBC_STDIO +#include <fcntl.h> +#endif +#include <limits.h> + +#include "shell.h" +#include "syntax.h" +#include "output.h" +#include "memalloc.h" +#include "error.h" +#include "main.h" +#include "system.h" + + +#define OUTBUFSIZ BUFSIZ +#define MEM_OUT -3 /* output to dynamically allocated memory */ + + +#ifdef USE_GLIBC_STDIO +struct output output = { + .stream = 0, .nextc = 0, .end = 0, .buf = 0, .bufsize = 0, .fd = 1, .flags = 0 +}; +struct output errout = { + .stream = 0, .nextc = 0, .end = 0, .buf = 0, .bufsize = 0, .fd = 2, .flags = 0 +} +#ifdef notyet +struct output memout = { + .stream = 0, .nextc = 0, .end = 0, .buf = 0, .bufsize = 0, .fd = MEM_OUT, .flags = 0 +}; +#endif +#else +struct output output = { + .nextc = 0, .end = 0, .buf = 0, .bufsize = OUTBUFSIZ, .fd = 1, .flags = 0 +}; +struct output errout = { + .nextc = 0, .end = 0, .buf = 0, .bufsize = 0, .fd = 2, .flags = 0 +}; +struct output preverrout; +#ifdef notyet +struct output memout = { + .nextc = 0, .end = 0, .buf = 0, .bufsize = 0, .fd = MEM_OUT, .flags = 0 +}; +#endif +#endif +struct output *out1 = &output; +struct output *out2 = &errout; + + +static int xvsnprintf(char *, size_t, const char *, va_list); + + +#ifdef mkinit + +INCLUDE "output.h" +INCLUDE "memalloc.h" + +INIT { +#ifdef USE_GLIBC_STDIO + initstreams(); +#endif +} + +RESET { +#ifdef notyet + out1 = &output; + out2 = &errout; +#ifdef USE_GLIBC_STDIO + if (memout.stream != NULL) + __closememout(); +#endif + if (memout.buf != NULL) { + ckfree(memout.buf); + memout.buf = NULL; + } +#endif +} + +#endif + + +void +outmem(const char *p, size_t len, struct output *dest) +{ +#ifdef USE_GLIBC_STDIO + INTOFF; + fwrite(p, 1, len, dest->stream); + INTON; +#else + size_t bufsize; + size_t offset; + size_t nleft; + + nleft = dest->end - dest->nextc; + if (likely(nleft >= len)) { +buffered: + dest->nextc = mempcpy(dest->nextc, p, len); + return; + } + + bufsize = dest->bufsize; + if (!bufsize) { + ; + } else if (dest->buf == NULL) { +#ifdef notyet + if (dest->fd == MEM_OUT && len > bufsize) { + bufsize = len; + } +#endif + offset = 0; +#ifdef notyet + goto alloc; + } else if (dest->fd == MEM_OUT) { + offset = bufsize; + if (bufsize >= len) { + bufsize <<= 1; + } else { + bufsize += len; + } + if (bufsize < offset) + goto err; +alloc: +#endif + INTOFF; + dest->buf = ckrealloc(dest->buf, bufsize); + dest->bufsize = bufsize; + dest->end = dest->buf + bufsize; + dest->nextc = dest->buf + offset; + INTON; + } else { + flushout(dest); + } + + nleft = dest->end - dest->nextc; + if (nleft > len) + goto buffered; + + if ((xwrite(dest->fd, p, len))) { +#ifdef notyet +err: +#endif + dest->flags |= OUTPUT_ERR; + } +#endif +} + + +void +outstr(const char *p, struct output *file) +{ +#ifdef USE_GLIBC_STDIO + INTOFF; + fputs(p, file->stream); + INTON; +#else + size_t len; + + len = strlen(p); + outmem(p, len, file); +#endif +} + + +#ifndef USE_GLIBC_STDIO + + +void +outcslow(int c, struct output *dest) +{ + char buf = c; + outmem(&buf, 1, dest); +} +#endif + + +void +flushall(void) +{ + flushout(&output); +#ifdef FLUSHERR + flushout(&errout); +#endif +} + + +void +flushout(struct output *dest) +{ +#ifdef USE_GLIBC_STDIO + INTOFF; + fflush(dest->stream); + INTON; +#else + size_t len; + + len = dest->nextc - dest->buf; + if (!len || dest->fd < 0) + return; + dest->nextc = dest->buf; + if ((xwrite(dest->fd, dest->buf, len))) + dest->flags |= OUTPUT_ERR; +#endif +} + + +void +outfmt(struct output *file, const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + doformat(file, fmt, ap); + va_end(ap); +} + + +void +out1fmt(const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + doformat(out1, fmt, ap); + va_end(ap); +} + + +int +fmtstr(char *outbuf, size_t length, const char *fmt, ...) +{ + va_list ap; + int ret; + + va_start(ap, fmt); + ret = xvsnprintf(outbuf, length, fmt, ap); + va_end(ap); + return ret > (int)length ? length : ret; +} + + +static int xvasprintf(char **sp, size_t size, const char *f, va_list ap) +{ + char *s; + int len; + va_list ap2; + + va_copy(ap2, ap); + len = xvsnprintf(*sp, size, f, ap2); + va_end(ap2); + if (len < 0) + sh_error("xvsnprintf failed"); + if (len < size) + return len; + + s = stalloc((len >= stackblocksize() ? len : stackblocksize()) + 1); + *sp = s; + len = xvsnprintf(s, len + 1, f, ap); + return len; +} + + +int xasprintf(char **sp, const char *f, ...) +{ + va_list ap; + int ret; + + va_start(ap, f); + ret = xvasprintf(sp, 0, f, ap); + va_end(ap); + return ret; +} + + +#ifndef USE_GLIBC_STDIO +void +doformat(struct output *dest, const char *f, va_list ap) +{ + struct stackmark smark; + char *s; + int len; + int olen; + + setstackmark(&smark); + s = dest->nextc; + olen = dest->end - dest->nextc; + len = xvasprintf(&s, olen, f, ap); + if (likely(olen > len)) { + dest->nextc += len; + goto out; + } + outmem(s, len, dest); +out: + popstackmark(&smark); +} +#endif + + + +/* + * Version of write which resumes after a signal is caught. + */ + +int +xwrite(int fd, const void *p, size_t n) +{ + const char *buf = p; + + while (n) { + ssize_t i; + size_t m; + + m = n; + if (m > SSIZE_MAX) + m = SSIZE_MAX; + do { + i = write(fd, buf, m); + } while (i < 0 && errno == EINTR); + if (i < 0) + return -1; + buf += i; + n -= i; + } + return 0; +} + + +#ifdef notyet +#ifdef USE_GLIBC_STDIO +void initstreams() { + output.stream = stdout; + errout.stream = stderr; +} + + +void +openmemout(void) { + INTOFF; + memout.stream = open_memstream(&memout.buf, &memout.bufsize); + INTON; +} + + +int +__closememout(void) { + int error; + error = fclose(memout.stream); + memout.stream = NULL; + return error; +} +#endif +#endif + + +static int +xvsnprintf(char *outbuf, size_t length, const char *fmt, va_list ap) +{ + int ret; + +#ifdef __sun + /* + * vsnprintf() on older versions of Solaris returns -1 when + * passed a length of 0. To avoid this, use a dummy + * 1-character buffer instead. + */ + char dummy[1]; + + if (length == 0) { + outbuf = dummy; + length = sizeof(dummy); + } +#endif + + INTOFF; + ret = vsnprintf(outbuf, length, fmt, ap); + INTON; + return ret; +} diff --git a/bin/dash/src/output.h b/bin/dash/src/output.h new file mode 100644 index 00000000..c43d4937 --- /dev/null +++ b/bin/dash/src/output.h @@ -0,0 +1,126 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)output.h 8.2 (Berkeley) 5/4/95 + */ + +#ifndef OUTPUT_INCL + +#include <stdarg.h> +#ifdef USE_GLIBC_STDIO +#include <stdio.h> +#endif +#include <sys/types.h> + +struct output { +#ifdef USE_GLIBC_STDIO + FILE *stream; +#endif + char *nextc; + char *end; + char *buf; + size_t bufsize; + int fd; + int flags; +}; + +extern struct output output; +extern struct output errout; +extern struct output preverrout; +#ifdef notyet +extern struct output memout; +#endif +extern struct output *out1; +extern struct output *out2; + +void outmem(const char *, size_t, struct output *); +void outstr(const char *, struct output *); +#ifndef USE_GLIBC_STDIO +void outcslow(int, struct output *); +#endif +void flushall(void); +void flushout(struct output *); +void outfmt(struct output *, const char *, ...) + __attribute__((__format__(__printf__,2,3))); +void out1fmt(const char *, ...) + __attribute__((__format__(__printf__,1,2))); +int fmtstr(char *, size_t, const char *, ...) + __attribute__((__format__(__printf__,3,4))); +int xasprintf(char **, const char *, ...); +#ifndef USE_GLIBC_STDIO +void doformat(struct output *, const char *, va_list); +#endif +int xwrite(int, const void *, size_t); +#ifdef notyet +#ifdef USE_GLIBC_STDIO +void initstreams(void); +void openmemout(void); +int __closememout(void); +#endif +#endif + +static inline void +freestdout() +{ + output.nextc = output.buf; + output.flags = 0; +} + +#define OUTPUT_ERR 01 /* error occurred on output */ + +#ifdef USE_GLIBC_STDIO +static inline void outc(int ch, struct output *file) +{ + putc(ch, file->stream); +} +#define doformat(d, f, a) vfprintf((d)->stream, (f), (a)) +#else +static inline void outc(int ch, struct output *file) +{ + if (file->nextc == file->end) + outcslow(ch, file); + else { + *file->nextc = ch; + file->nextc++; + } +} +#endif +#define out1c(c) outc((c), out1) +#define out2c(c) outcslow((c), out2) +#define out1mem(s, l) outmem((s), (l), out1) +#define out1str(s) outstr((s), out1) +#define out2str(s) outstr((s), out2) +#define outerr(f) (f)->flags + +#define OUTPUT_INCL +#endif diff --git a/bin/dash/src/parser.c b/bin/dash/src/parser.c new file mode 100644 index 00000000..499f7f8e --- /dev/null +++ b/bin/dash/src/parser.c @@ -0,0 +1,1677 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if HAVE_ALLOCA_H +#include <alloca.h> +#endif + +#include <stdlib.h> + +#include "shell.h" +#include "parser.h" +#include "nodes.h" +#include "expand.h" /* defines rmescapes() */ +#include "exec.h" /* defines find_builtin() */ +#include "syntax.h" +#include "options.h" +#include "input.h" +#include "output.h" +#include "var.h" +#include "error.h" +#include "memalloc.h" +#include "mystring.h" +#include "alias.h" +#include "show.h" +#include "builtins.h" +#include "system.h" +#ifndef SMALL +#include "myhistedit.h" +#endif + +/* + * Shell command parser. + */ + +/* values returned by readtoken */ +#include "token_vars.h" + + + +/* Used by expandstr to get here-doc like behaviour. */ +#define FAKEEOFMARK (char *)1 + + + +struct heredoc { + struct heredoc *next; /* next here document in list */ + union node *here; /* redirection node */ + char *eofmark; /* string indicating end of input */ + int striptabs; /* if set, strip leading tabs */ +}; + +struct synstack { + const char *syntax; + struct synstack *prev; + struct synstack *next; + int innerdq; + int varpushed; + int dblquote; + int varnest; /* levels of variables expansion */ + int parenlevel; /* levels of parens in arithmetic */ + int dqvarnest; /* levels of variables expansion within double quotes */ +}; + + + +struct heredoc *heredoclist; /* list of here documents to read */ +int doprompt; /* if set, prompt the user */ +int needprompt; /* true if interactive and at start of line */ +int lasttoken; /* last token read */ +int tokpushback; /* last token pushed back */ +char *wordtext; /* text of last word returned by readtoken */ +int checkkwd; +struct nodelist *backquotelist; +union node *redirnode; +struct heredoc *heredoc; +int quoteflag; /* set if (part of) last token was quoted */ + + +static char *promptcache; +static char *rpromptcache; + + +STATIC union node *list(int); +STATIC union node *andor(void); +STATIC union node *pipeline(void); +STATIC union node *command(void); +STATIC union node *simplecmd(void); +STATIC union node *makename(void); +STATIC void parsefname(void); +STATIC void parseheredoc(void); +STATIC int readtoken(void); +STATIC int xxreadtoken(void); +STATIC int pgetc_eatbnl(); +STATIC int readtoken1(int, char const *, char *, int); +STATIC void synexpect(int) __attribute__((__noreturn__)); +STATIC void synerror(const char *) __attribute__((__noreturn__)); +STATIC void setprompt(int); + + +int isassignment(const char *p) +{ + const char *q = endofname(p); + if (p == q) + return 0; + return *q == '='; +} + +static inline int realeofmark(const char *eofmark) +{ + return eofmark && eofmark != FAKEEOFMARK; +} + + +/* + * Read and parse a command. Returns NEOF on end of file. (NULL is a + * valid parse tree indicating a blank line.) + */ + +union node * +parsecmd(int interact) +{ + tokpushback = 0; + checkkwd = 0; + heredoclist = 0; + doprompt = interact; + if (doprompt) + setprompt(doprompt); + needprompt = 0; + return list(1); +} + + +STATIC union node * +list(int nlflag) +{ + int chknl = nlflag & 1 ? 0 : CHKNL; + union node *n1, *n2, *n3; + int tok; + + n1 = NULL; + for (;;) { + checkkwd = chknl | CHKKWD | CHKALIAS; + tok = readtoken(); + switch (tok) { + case TNL: + parseheredoc(); + return n1; + + case TEOF: + if (!n1 && !chknl) + n1 = NEOF; +out_eof: + parseheredoc(); + tokpushback++; + lasttoken = TEOF; + return n1; + } + + tokpushback++; + if (nlflag == 2 && tokendlist[tok]) + return n1; + nlflag |= 2; + + n2 = andor(); + tok = readtoken(); + if (tok == TBACKGND) { + if (n2->type == NPIPE) { + n2->npipe.backgnd = 1; + } else { + if (n2->type != NREDIR) { + n3 = stalloc(sizeof(struct nredir)); + n3->nredir.n = n2; + n3->nredir.redirect = NULL; + n2 = n3; + } + n2->type = NBACKGND; + } + } + if (n1 == NULL) { + n1 = n2; + } + else { + n3 = (union node *)stalloc(sizeof (struct nbinary)); + n3->type = NSEMI; + n3->nbinary.ch1 = n1; + n3->nbinary.ch2 = n2; + n1 = n3; + } + switch (tok) { + case TEOF: + goto out_eof; + case TNL: + tokpushback++; + /* fall through */ + case TBACKGND: + case TSEMI: + break; + default: + if (!chknl) + synexpect(-1); + tokpushback++; + return n1; + } + } +} + + + +STATIC union node * +andor(void) +{ + union node *n1, *n2, *n3; + int t; + + n1 = pipeline(); + for (;;) { + if ((t = readtoken()) == TAND) { + t = NAND; + } else if (t == TOR) { + t = NOR; + } else { + tokpushback++; + return n1; + } + checkkwd = CHKNL | CHKKWD | CHKALIAS; + n2 = pipeline(); + n3 = (union node *)stalloc(sizeof (struct nbinary)); + n3->type = t; + n3->nbinary.ch1 = n1; + n3->nbinary.ch2 = n2; + n1 = n3; + } +} + + + +STATIC union node * +pipeline(void) +{ + union node *n1, *n2, *pipenode; + struct nodelist *lp, *prev; + int negate; + + negate = 0; + TRACE(("pipeline: entered\n")); + if (readtoken() == TNOT) { + negate = !negate; + checkkwd = CHKKWD | CHKALIAS; + } else + tokpushback++; + n1 = command(); + if (readtoken() == TPIPE) { + pipenode = (union node *)stalloc(sizeof (struct npipe)); + pipenode->type = NPIPE; + pipenode->npipe.backgnd = 0; + lp = (struct nodelist *)stalloc(sizeof (struct nodelist)); + pipenode->npipe.cmdlist = lp; + lp->n = n1; + do { + prev = lp; + lp = (struct nodelist *)stalloc(sizeof (struct nodelist)); + checkkwd = CHKNL | CHKKWD | CHKALIAS; + lp->n = command(); + prev->next = lp; + } while (readtoken() == TPIPE); + lp->next = NULL; + n1 = pipenode; + } + tokpushback++; + if (negate) { + n2 = (union node *)stalloc(sizeof (struct nnot)); + n2->type = NNOT; + n2->nnot.com = n1; + return n2; + } else + return n1; +} + + + +STATIC union node * +command(void) +{ + union node *n1, *n2; + union node *ap, **app; + union node *cp, **cpp; + union node *redir, **rpp; + union node **rpp2; + int t; + int savelinno; + + redir = NULL; + rpp2 = &redir; + + savelinno = plinno; + + switch (readtoken()) { + default: + synexpect(-1); + /* NOTREACHED */ + case TIF: + n1 = (union node *)stalloc(sizeof (struct nif)); + n1->type = NIF; + n1->nif.test = list(0); + if (readtoken() != TTHEN) + synexpect(TTHEN); + n1->nif.ifpart = list(0); + n2 = n1; + while (readtoken() == TELIF) { + n2->nif.elsepart = (union node *)stalloc(sizeof (struct nif)); + n2 = n2->nif.elsepart; + n2->type = NIF; + n2->nif.test = list(0); + if (readtoken() != TTHEN) + synexpect(TTHEN); + n2->nif.ifpart = list(0); + } + if (lasttoken == TELSE) + n2->nif.elsepart = list(0); + else { + n2->nif.elsepart = NULL; + tokpushback++; + } + t = TFI; + break; + case TWHILE: + case TUNTIL: { + int got; + n1 = (union node *)stalloc(sizeof (struct nbinary)); + n1->type = (lasttoken == TWHILE)? NWHILE : NUNTIL; + n1->nbinary.ch1 = list(0); + if ((got=readtoken()) != TDO) { +TRACE(("expecting DO got %s %s\n", tokname[got], got == TWORD ? wordtext : "")); + synexpect(TDO); + } + n1->nbinary.ch2 = list(0); + t = TDONE; + break; + } + case TFOR: + if (readtoken() != TWORD || quoteflag || ! goodname(wordtext)) + synerror("Bad for loop variable"); + n1 = (union node *)stalloc(sizeof (struct nfor)); + n1->type = NFOR; + n1->nfor.linno = savelinno; + n1->nfor.var = wordtext; + checkkwd = CHKNL | CHKKWD | CHKALIAS; + if (readtoken() == TIN) { + app = ≈ + while (readtoken() == TWORD) { + n2 = (union node *)stalloc(sizeof (struct narg)); + n2->type = NARG; + n2->narg.text = wordtext; + n2->narg.backquote = backquotelist; + *app = n2; + app = &n2->narg.next; + } + *app = NULL; + n1->nfor.args = ap; + if (lasttoken != TNL && lasttoken != TSEMI) + synexpect(-1); + } else { + n2 = (union node *)stalloc(sizeof (struct narg)); + n2->type = NARG; + n2->narg.text = (char *)dolatstr; + n2->narg.backquote = NULL; + n2->narg.next = NULL; + n1->nfor.args = n2; + /* + * Newline or semicolon here is optional (but note + * that the original Bourne shell only allowed NL). + */ + if (lasttoken != TSEMI) + tokpushback++; + } + checkkwd = CHKNL | CHKKWD | CHKALIAS; + if (readtoken() != TDO) + synexpect(TDO); + n1->nfor.body = list(0); + t = TDONE; + break; + case TCASE: + n1 = (union node *)stalloc(sizeof (struct ncase)); + n1->type = NCASE; + n1->ncase.linno = savelinno; + if (readtoken() != TWORD) + synexpect(TWORD); + n1->ncase.expr = n2 = (union node *)stalloc(sizeof (struct narg)); + n2->type = NARG; + n2->narg.text = wordtext; + n2->narg.backquote = backquotelist; + n2->narg.next = NULL; + checkkwd = CHKNL | CHKKWD | CHKALIAS; + if (readtoken() != TIN) + synexpect(TIN); + cpp = &n1->ncase.cases; +next_case: + checkkwd = CHKNL | CHKKWD; + t = readtoken(); + while(t != TESAC) { + if (lasttoken == TLP) + readtoken(); + *cpp = cp = (union node *)stalloc(sizeof (struct nclist)); + cp->type = NCLIST; + app = &cp->nclist.pattern; + for (;;) { + *app = ap = (union node *)stalloc(sizeof (struct narg)); + ap->type = NARG; + ap->narg.text = wordtext; + ap->narg.backquote = backquotelist; + if (readtoken() != TPIPE) + break; + app = &ap->narg.next; + readtoken(); + } + ap->narg.next = NULL; + if (lasttoken != TRP) + synexpect(TRP); + cp->nclist.body = list(2); + + cpp = &cp->nclist.next; + + checkkwd = CHKNL | CHKKWD; + if ((t = readtoken()) != TESAC) { + if (t != TENDCASE) + synexpect(TENDCASE); + else + goto next_case; + } + } + *cpp = NULL; + goto redir; + case TLP: + n1 = (union node *)stalloc(sizeof (struct nredir)); + n1->type = NSUBSHELL; + n1->nredir.linno = savelinno; + n1->nredir.n = list(0); + n1->nredir.redirect = NULL; + t = TRP; + break; + case TBEGIN: + n1 = list(0); + t = TEND; + break; + case TWORD: + case TREDIR: + tokpushback++; + return simplecmd(); + } + + if (readtoken() != t) + synexpect(t); + +redir: + /* Now check for redirection which may follow command */ + checkkwd = CHKKWD | CHKALIAS; + rpp = rpp2; + while (readtoken() == TREDIR) { + *rpp = n2 = redirnode; + rpp = &n2->nfile.next; + parsefname(); + } + tokpushback++; + *rpp = NULL; + if (redir) { + if (n1->type != NSUBSHELL) { + n2 = (union node *)stalloc(sizeof (struct nredir)); + n2->type = NREDIR; + n2->nredir.linno = savelinno; + n2->nredir.n = n1; + n1 = n2; + } + n1->nredir.redirect = redir; + } + + return n1; +} + + +STATIC union node * +simplecmd(void) { + union node *args, **app; + union node *n = NULL; + union node *vars, **vpp; + union node **rpp, *redir; + int savecheckkwd; + int savelinno; + + args = NULL; + app = &args; + vars = NULL; + vpp = &vars; + redir = NULL; + rpp = &redir; + + savecheckkwd = CHKALIAS; + savelinno = plinno; + for (;;) { + checkkwd = savecheckkwd; + switch (readtoken()) { + case TWORD: + n = (union node *)stalloc(sizeof (struct narg)); + n->type = NARG; + n->narg.text = wordtext; + n->narg.backquote = backquotelist; + if (savecheckkwd && isassignment(wordtext)) { + *vpp = n; + vpp = &n->narg.next; + } else { + *app = n; + app = &n->narg.next; + savecheckkwd = 0; + } + break; + case TREDIR: + *rpp = n = redirnode; + rpp = &n->nfile.next; + parsefname(); /* read name of redirection file */ + break; + case TLP: + if ( + args && app == &args->narg.next && + !vars && !redir + ) { + struct builtincmd *bcmd; + const char *name; + + /* We have a function */ + if (readtoken() != TRP) + synexpect(TRP); + name = n->narg.text; + if ( + !goodname(name) || ( + (bcmd = find_builtin(name)) && + bcmd->flags & BUILTIN_SPECIAL + ) + ) + synerror("Bad function name"); + n->type = NDEFUN; + checkkwd = CHKNL | CHKKWD | CHKALIAS; + n->ndefun.text = n->narg.text; + n->ndefun.linno = plinno; + n->ndefun.body = command(); + return n; + } + /* fall through */ + default: + tokpushback++; + goto out; + } + } +out: + *app = NULL; + *vpp = NULL; + *rpp = NULL; + n = (union node *)stalloc(sizeof (struct ncmd)); + n->type = NCMD; + n->ncmd.linno = savelinno; + n->ncmd.args = args; + n->ncmd.assign = vars; + n->ncmd.redirect = redir; + return n; +} + +STATIC union node * +makename(void) +{ + union node *n; + + n = (union node *)stalloc(sizeof (struct narg)); + n->type = NARG; + n->narg.next = NULL; + n->narg.text = wordtext; + n->narg.backquote = backquotelist; + return n; +} + +void fixredir(union node *n, const char *text, int err) + { + TRACE(("Fix redir %s %d\n", text, err)); + if (!err) + n->ndup.vname = NULL; + + if (is_digit(text[0]) && text[1] == '\0') + n->ndup.dupfd = digit_val(text[0]); + else if (text[0] == '-' && text[1] == '\0') + n->ndup.dupfd = -1; + else { + + if (err) + synerror("Bad fd number"); + else + n->ndup.vname = makename(); + } +} + + +STATIC void +parsefname(void) +{ + union node *n = redirnode; + + if (n->type == NHERE) + checkkwd = CHKEOFMARK; + if (readtoken() != TWORD) + synexpect(-1); + if (n->type == NHERE) { + struct heredoc *here = heredoc; + struct heredoc *p; + + if (quoteflag == 0) + n->type = NXHERE; + TRACE(("Here document %d\n", n->type)); + rmescapes(wordtext); + here->eofmark = wordtext; + here->next = NULL; + if (heredoclist == NULL) + heredoclist = here; + else { + for (p = heredoclist ; p->next ; p = p->next); + p->next = here; + } + } else if (n->type == NTOFD || n->type == NFROMFD) { + fixredir(n, wordtext, 0); + } else { + n->nfile.fname = makename(); + } +} + + +/* + * Input any here documents. + */ + +STATIC void +parseheredoc(void) +{ + struct heredoc *here; + union node *n; + + here = heredoclist; + heredoclist = 0; + + while (here) { + if (needprompt) { + setprompt(2); + } + if (here->here->type == NHERE) + readtoken1(pgetc(), SQSYNTAX, here->eofmark, here->striptabs); + else + readtoken1(pgetc_eatbnl(), DQSYNTAX, here->eofmark, here->striptabs); + n = (union node *)stalloc(sizeof (struct narg)); + n->narg.type = NARG; + n->narg.next = NULL; + n->narg.text = wordtext; + n->narg.backquote = backquotelist; + here->here->nhere.doc = n; + here = here->next; + } +} + +STATIC int +readtoken(void) +{ + int t; + int kwd = checkkwd; +#ifdef DEBUG + int alreadyseen = tokpushback; +#endif + +top: + t = xxreadtoken(); + + /* + * eat newlines + */ + if (kwd & CHKNL) { + while (t == TNL) { + parseheredoc(); + checkkwd = 0; + t = xxreadtoken(); + } + } + + kwd |= checkkwd; + checkkwd = 0; + + if (t != TWORD || quoteflag) { + goto out; + } + + /* + * check for keywords + */ + if (kwd & CHKKWD) { + const char *const *pp; + + if ((pp = findkwd(wordtext))) { + lasttoken = t = pp - parsekwd + KWDOFFSET; + TRACE(("keyword %s recognized\n", tokname[t])); + goto out; + } + } + + if (kwd & CHKALIAS) { + struct alias *ap; + if ((ap = lookupalias(wordtext, 1)) != NULL) { + if (*ap->val) { + pushstring(ap->val, ap); + } + goto top; + } + } +out: +#ifdef DEBUG + if (!alreadyseen) + TRACE(("token %s %s\n", tokname[t], t == TWORD ? wordtext : "")); + else + TRACE(("reread token %s %s\n", tokname[t], t == TWORD ? wordtext : "")); +#endif + return (t); +} + +static void nlprompt(void) +{ + plinno++; + if (doprompt) + setprompt(2); +} + +static void nlnoprompt(void) +{ + plinno++; + needprompt = doprompt; +} + + +/* + * Read the next input token. + * If the token is a word, we set backquotelist to the list of cmds in + * backquotes. We set quoteflag to true if any part of the word was + * quoted. + * If the token is TREDIR, then we set redirnode to a structure containing + * the redirection. + * + * [Change comment: here documents and internal procedures] + * [Readtoken shouldn't have any arguments. Perhaps we should make the + * word parsing code into a separate routine. In this case, readtoken + * doesn't need to have any internal procedures, but parseword does. + * We could also make parseoperator in essence the main routine, and + * have parseword (readtoken1?) handle both words and redirection.] + */ + +#define RETURN(token) return lasttoken = token + +STATIC int +xxreadtoken(void) +{ + int c; + + if (tokpushback) { + tokpushback = 0; + return lasttoken; + } + if (needprompt) { + setprompt(2); + } + for (;;) { /* until token or start of word found */ + c = pgetc_eatbnl(); + switch (c) { + case ' ': case '\t': + case PEOA: + continue; + case '#': + while ((c = pgetc()) != '\n' && c != PEOF); + pungetc(); + continue; + case '\n': + nlnoprompt(); + RETURN(TNL); + case PEOF: + RETURN(TEOF); + case '&': + if (pgetc_eatbnl() == '&') + RETURN(TAND); + pungetc(); + RETURN(TBACKGND); + case '|': + if (pgetc_eatbnl() == '|') + RETURN(TOR); + pungetc(); + RETURN(TPIPE); + case ';': + if (pgetc_eatbnl() == ';') + RETURN(TENDCASE); + pungetc(); + RETURN(TSEMI); + case '(': + RETURN(TLP); + case ')': + RETURN(TRP); + } + break; + } + return readtoken1(c, BASESYNTAX, (char *)NULL, 0); +#undef RETURN +} + +static int pgetc_eatbnl(void) +{ + int c; + + while ((c = pgetc()) == '\\') { + if (pgetc2() != '\n') { + pungetc(); + break; + } + + nlprompt(); + } + + return c; +} + +static int pgetc_top(struct synstack *stack) +{ + return stack->syntax == SQSYNTAX ? pgetc() : pgetc_eatbnl(); +} + +static void synstack_push(struct synstack **stack, struct synstack *next, + const char *syntax) +{ + memset(next, 0, sizeof(*next)); + next->syntax = syntax; + next->next = *stack; + (*stack)->prev = next; + *stack = next; +} + +static void synstack_pop(struct synstack **stack) +{ + *stack = (*stack)->next; +} + + + +/* + * If eofmark is NULL, read a word or a redirection symbol. If eofmark + * is not NULL, read a here document. In the latter case, eofmark is the + * word which marks the end of the document and striptabs is true if + * leading tabs should be stripped from the document. The argument firstc + * is the first character of the input token or document. + * + * Because C does not have internal subroutines, I have simulated them + * using goto's to implement the subroutine linkage. The following macros + * will run code that appears at the end of readtoken1. + */ + +#define CHECKEND() {goto checkend; checkend_return:;} +#define PARSEREDIR() {goto parseredir; parseredir_return:;} +#define PARSESUB() {goto parsesub; parsesub_return:;} +#define PARSEBACKQOLD() {oldstyle = 1; goto parsebackq; parsebackq_oldreturn:;} +#define PARSEBACKQNEW() {oldstyle = 0; goto parsebackq; parsebackq_newreturn:;} +#define PARSEARITH() {goto parsearith; parsearith_return:;} + +STATIC int +readtoken1(int firstc, char const *syntax, char *eofmark, int striptabs) +{ + int c = firstc; + char *out; + size_t len; + struct nodelist *bqlist; + int quotef; + int oldstyle; + /* syntax stack */ + struct synstack synbase = { .syntax = syntax }; + struct synstack *synstack = &synbase; + + if (syntax == DQSYNTAX) + synstack->dblquote = 1; + quotef = 0; + bqlist = NULL; + + STARTSTACKSTR(out); + loop: { /* for each line, until end of word */ +#if ATTY + if (c == '\034' && doprompt + && attyset() && ! equal(termval(), "emacs")) { + attyline(); + if (synstack->syntax == BASESYNTAX) + return readtoken(); + c = pgetc_top(synstack); + goto loop; + } +#endif + CHECKEND(); /* set c to PEOF if at end of here document */ + for (;;) { /* until end of line or end of word */ + CHECKSTRSPACE(4, out); /* permit 4 calls to USTPUTC */ + switch(synstack->syntax[c]) { + case CNL: /* '\n' */ + if (synstack->syntax == BASESYNTAX && + !synstack->varnest) + goto endword; /* exit outer loop */ + USTPUTC(c, out); + nlprompt(); + c = pgetc_top(synstack); + goto loop; /* continue outer loop */ + case CWORD: + USTPUTC(c, out); + break; + case CCTL: + if ((!eofmark) | synstack->dblquote | + synstack->varnest) + USTPUTC(CTLESC, out); + USTPUTC(c, out); + break; + /* backslash */ + case CBACK: + c = pgetc2(); + if (c == PEOF) { + USTPUTC(CTLESC, out); + USTPUTC('\\', out); + pungetc(); + } else { + if ( + synstack->dblquote && + c != '\\' && c != '`' && + c != '$' && ( + c != '"' || + (eofmark != NULL && + !synstack->varnest) + ) && ( + c != '}' || + !synstack->varnest + ) + ) { + USTPUTC(CTLESC, out); + USTPUTC('\\', out); + } + USTPUTC(CTLESC, out); + USTPUTC(c, out); + quotef++; + } + break; + case CSQUOTE: + synstack->syntax = SQSYNTAX; +quotemark: + if (eofmark == NULL) { + USTPUTC(CTLQUOTEMARK, out); + } + break; + case CDQUOTE: + synstack->syntax = DQSYNTAX; + synstack->dblquote = 1; +toggledq: + if (synstack->varnest) + synstack->innerdq ^= 1; + goto quotemark; + case CENDQUOTE: + if (eofmark && !synstack->varnest) { + USTPUTC(c, out); + break; + } + + if (synstack->dqvarnest == 0) { + synstack->syntax = BASESYNTAX; + synstack->dblquote = 0; + } + + quotef++; + + if (c == '"') + goto toggledq; + + goto quotemark; + case CVAR: /* '$' */ + PARSESUB(); /* parse substitution */ + break; + case CENDVAR: /* '}' */ + if (!synstack->innerdq && + synstack->varnest > 0) { + if (!--synstack->varnest && + synstack->varpushed) + synstack_pop(&synstack); + else if (synstack->dqvarnest > 0) + synstack->dqvarnest--; + USTPUTC(CTLENDVAR, out); + } else { + USTPUTC(c, out); + } + break; + case CLP: /* '(' in arithmetic */ + synstack->parenlevel++; + USTPUTC(c, out); + break; + case CRP: /* ')' in arithmetic */ + if (synstack->parenlevel > 0) { + USTPUTC(c, out); + --synstack->parenlevel; + } else { + if (pgetc_eatbnl() == ')') { + USTPUTC(CTLENDARI, out); + synstack_pop(&synstack); + } else { + /* + * unbalanced parens + * (don't 2nd guess - no error) + */ + pungetc(); + USTPUTC(')', out); + } + } + break; + case CBQUOTE: /* '`' */ + if (checkkwd & CHKEOFMARK) { + USTPUTC('`', out); + break; + } + + PARSEBACKQOLD(); + break; + case CEOF: + goto endword; /* exit outer loop */ + case CIGN: + break; + default: + if (synstack->varnest == 0) + goto endword; /* exit outer loop */ + if (c != PEOA) { + USTPUTC(c, out); + } + } + c = pgetc_top(synstack); + } + } +endword: + if (synstack->syntax == ARISYNTAX) + synerror("Missing '))'"); + if (synstack->syntax != BASESYNTAX && eofmark == NULL) + synerror("Unterminated quoted string"); + if (synstack->varnest != 0) { + /* { */ + synerror("Missing '}'"); + } + USTPUTC('\0', out); + len = out - (char *)stackblock(); + out = stackblock(); + if (eofmark == NULL) { + if ((c == '>' || c == '<') + && quotef == 0 + && len <= 2 + && (*out == '\0' || is_digit(*out))) { + PARSEREDIR(); + return lasttoken = TREDIR; + } else { + pungetc(); + } + } + quoteflag = quotef; + backquotelist = bqlist; + grabstackblock(len); + wordtext = out; + return lasttoken = TWORD; +/* end of readtoken routine */ + + + +/* + * Check to see whether we are at the end of the here document. When this + * is called, c is set to the first character of the next input line. If + * we are at the end of the here document, this routine sets the c to PEOF. + */ + +checkend: { + if (realeofmark(eofmark)) { + int markloc; + char *p; + + if (c == PEOA) { + c = pgetc2(); + } + if (striptabs) { + while (c == '\t') { + c = pgetc2(); + } + } + + markloc = out - (char *)stackblock(); + for (p = eofmark; STPUTC(c, out), *p; p++) { + if (c != *p) + goto more_heredoc; + + c = pgetc2(); + } + + if (c == '\n' || c == PEOF) { + c = PEOF; + nlnoprompt(); + } else { + int len; + +more_heredoc: + p = (char *)stackblock() + markloc + 1; + len = out - p; + + if (len) { + len -= c < 0; + c = p[-1]; + + if (len) { + char *str; + + str = alloca(len + 1); + *(char *)mempcpy(str, p, len) = 0; + + pushstring(str, NULL); + } + } + } + + STADJUST((char *)stackblock() + markloc - out, out); + } + goto checkend_return; +} + + +/* + * Parse a redirection operator. The variable "out" points to a string + * specifying the fd to be redirected. The variable "c" contains the + * first character of the redirection operator. + */ + +parseredir: { + char fd = *out; + union node *np; + + np = (union node *)stalloc(sizeof (struct nfile)); + if (c == '>') { + np->nfile.fd = 1; + c = pgetc_eatbnl(); + if (c == '>') + np->type = NAPPEND; + else if (c == '|') + np->type = NCLOBBER; + else if (c == '&') + np->type = NTOFD; + else { + np->type = NTO; + pungetc(); + } + } else { /* c == '<' */ + np->nfile.fd = 0; + switch (c = pgetc_eatbnl()) { + case '<': + if (sizeof (struct nfile) != sizeof (struct nhere)) { + np = (union node *)stalloc(sizeof (struct nhere)); + np->nfile.fd = 0; + } + np->type = NHERE; + heredoc = (struct heredoc *)stalloc(sizeof (struct heredoc)); + heredoc->here = np; + if ((c = pgetc_eatbnl()) == '-') { + heredoc->striptabs = 1; + } else { + heredoc->striptabs = 0; + pungetc(); + } + break; + + case '&': + np->type = NFROMFD; + break; + + case '>': + np->type = NFROMTO; + break; + + default: + np->type = NFROM; + pungetc(); + break; + } + } + if (fd != '\0') + np->nfile.fd = digit_val(fd); + redirnode = np; + goto parseredir_return; +} + + +/* + * Parse a substitution. At this point, we have read the dollar sign + * and nothing else. + */ + +parsesub: { + int subtype; + int typeloc; + char *p; + static const char types[] = "}-+?="; + + c = pgetc_eatbnl(); + if ( + (checkkwd & CHKEOFMARK) || + c <= PEOA || + (c != '(' && c != '{' && !is_name(c) && !is_special(c)) + ) { + USTPUTC('$', out); + pungetc(); + } else if (c == '(') { /* $(command) or $((arith)) */ + if (pgetc_eatbnl() == '(') { + PARSEARITH(); + } else { + pungetc(); + PARSEBACKQNEW(); + } + } else { + const char *newsyn = synstack->syntax; + + USTPUTC(CTLVAR, out); + typeloc = out - (char *)stackblock(); + STADJUST(1, out); + subtype = VSNORMAL; + if (likely(c == '{')) { + c = pgetc_eatbnl(); + subtype = 0; + } +varname: + if (is_name(c)) { + do { + STPUTC(c, out); + c = pgetc_eatbnl(); + } while (is_in_name(c)); + } else if (is_digit(c)) { + do { + STPUTC(c, out); + c = pgetc_eatbnl(); + } while (!subtype && is_digit(c)); + } else if (c != '}') { + int cc = c; + + c = pgetc_eatbnl(); + + if (!subtype && cc == '#') { + subtype = VSLENGTH; + + if (c == '_' || isalnum(c)) + goto varname; + + cc = c; + c = pgetc_eatbnl(); + if (cc == '}' || c != '}') { + pungetc(); + subtype = 0; + c = cc; + cc = '#'; + } + } + + if (!is_special(cc)) { + if (subtype == VSLENGTH) + subtype = 0; + goto badsub; + } + + USTPUTC(cc, out); + } else + goto badsub; + + if (subtype == 0) { + int cc = c; + + switch (c) { + case ':': + subtype = VSNUL; + c = pgetc_eatbnl(); + /*FALLTHROUGH*/ + default: + p = strchr(types, c); + if (p == NULL) + break; + subtype |= p - types + VSNORMAL; + break; + case '%': + case '#': + subtype = c == '#' ? VSTRIMLEFT : + VSTRIMRIGHT; + c = pgetc_eatbnl(); + if (c == cc) + subtype++; + else + pungetc(); + + newsyn = BASESYNTAX; + break; + } + } else { +badsub: + pungetc(); + } + + if (newsyn == ARISYNTAX) + newsyn = DQSYNTAX; + + if ((newsyn != synstack->syntax || synstack->innerdq) && + subtype != VSNORMAL) { + synstack_push(&synstack, + synstack->prev ?: + alloca(sizeof(*synstack)), + newsyn); + + synstack->varpushed++; + synstack->dblquote = newsyn != BASESYNTAX; + } + + *((char *)stackblock() + typeloc) = subtype; + if (subtype != VSNORMAL) { + synstack->varnest++; + if (synstack->dblquote) + synstack->dqvarnest++; + } + STPUTC('=', out); + } + goto parsesub_return; +} + + +/* + * Called to parse command substitutions. Newstyle is set if the command + * is enclosed inside $(...); nlpp is a pointer to the head of the linked + * list of commands (passed by reference), and savelen is the number of + * characters on the top of the stack which must be preserved. + */ + +parsebackq: { + struct nodelist **nlpp; + union node *n; + char *str; + size_t savelen; + struct heredoc *saveheredoclist; + int uninitialized_var(saveprompt); + + str = NULL; + savelen = out - (char *)stackblock(); + if (savelen > 0) { + str = alloca(savelen); + memcpy(str, stackblock(), savelen); + } + if (oldstyle) { + /* We must read until the closing backquote, giving special + treatment to some slashes, and then push the string and + reread it as input, interpreting it normally. */ + char *pout; + int pc; + size_t psavelen; + char *pstr; + + + STARTSTACKSTR(pout); + for (;;) { + if (needprompt) { + setprompt(2); + } + switch (pc = pgetc_eatbnl()) { + case '`': + goto done; + + case '\\': + pc = pgetc(); + if (pc != '\\' && pc != '`' && pc != '$' + && (!synstack->dblquote || pc != '"')) + STPUTC('\\', pout); + if (pc > PEOA) { + break; + } + /* fall through */ + + case PEOF: + case PEOA: + synerror("EOF in backquote substitution"); + + case '\n': + nlnoprompt(); + break; + + default: + break; + } + STPUTC(pc, pout); + } +done: + STPUTC('\0', pout); + psavelen = pout - (char *)stackblock(); + if (psavelen > 0) { + pstr = grabstackstr(pout); + setinputstring(pstr); + } + } + nlpp = &bqlist; + while (*nlpp) + nlpp = &(*nlpp)->next; + *nlpp = (struct nodelist *)stalloc(sizeof (struct nodelist)); + (*nlpp)->next = NULL; + + saveheredoclist = heredoclist; + heredoclist = NULL; + + if (oldstyle) { + saveprompt = doprompt; + doprompt = 0; + } + + n = list(2); + + if (oldstyle) + doprompt = saveprompt; + else { + if (readtoken() != TRP) + synexpect(TRP); + setinputstring(nullstr); + } + + parseheredoc(); + heredoclist = saveheredoclist; + + (*nlpp)->n = n; + /* Start reading from old file again. */ + popfile(); + /* Ignore any pushed back tokens left from the backquote parsing. */ + if (oldstyle) + tokpushback = 0; + out = growstackto(savelen + 1); + if (str) { + memcpy(out, str, savelen); + STADJUST(savelen, out); + } + USTPUTC(CTLBACKQ, out); + if (oldstyle) + goto parsebackq_oldreturn; + else + goto parsebackq_newreturn; +} + +/* + * Parse an arithmetic expansion (indicate start of one and set state) + */ +parsearith: { + + synstack_push(&synstack, + synstack->prev ?: alloca(sizeof(*synstack)), + ARISYNTAX); + synstack->dblquote = 1; + USTPUTC(CTLARI, out); + goto parsearith_return; +} + +} /* end of readtoken */ + + + +#ifdef mkinit +INCLUDE "parser.h" +#endif + + +/* + * Return of a legal variable name (a letter or underscore followed by zero or + * more letters, underscores, and digits). + */ + +char * +endofname(const char *name) + { + char *p; + + p = (char *) name; + if (! is_name(*p)) + return p; + while (*++p) { + if (! is_in_name(*p)) + break; + } + return p; +} + + +/* + * Called when an unexpected token is read during the parse. The argument + * is the token that is expected, or -1 if more than one type of token can + * occur at this point. + */ + +STATIC void +synexpect(int token) +{ + char msg[64]; + + if (token >= 0) { + fmtstr(msg, 64, "%s unexpected (expecting %s)", + tokname[lasttoken], tokname[token]); + } else { + fmtstr(msg, 64, "%s unexpected", tokname[lasttoken]); + } + synerror(msg); + /* NOTREACHED */ +} + + +STATIC void +synerror(const char *msg) +{ + errlinno = plinno; + sh_error("Syntax error: %s", msg); + /* NOTREACHED */ +} + +const char * +expandstr(const char *ps) +{ + struct parsefile *file_stop; + struct jmploc *volatile savehandler; + struct heredoc *saveheredoclist; + const char *result; + int saveprompt; + struct jmploc jmploc; + union node n; + int err; + + file_stop = parsefile; + + /* XXX Fix (char *) cast. */ + setinputstring((char *)ps); + + saveheredoclist = heredoclist; + heredoclist = NULL; + saveprompt = doprompt; + doprompt = 0; + result = ps; + savehandler = handler; + if (unlikely(err = setjmp(jmploc.loc))) + goto out; + handler = &jmploc; + + readtoken1(pgetc_eatbnl(), DQSYNTAX, FAKEEOFMARK, 0); + + n.narg.type = NARG; + n.narg.next = NULL; + n.narg.text = wordtext; + n.narg.backquote = backquotelist; + + expandarg(&n, NULL, EXP_QUOTED); + result = stackblock(); + +out: + handler = savehandler; + if (err && exception != EXERROR) + longjmp(handler->loc, 1); + + doprompt = saveprompt; + unwindfiles(file_stop); + heredoclist = saveheredoclist; + + return result; +} + +STATIC void +setprompt(int which) +{ + struct stackmark smark; + const char *prompt, *rprompt, *nl; + int show; + + needprompt = 0; + whichprompt = which; + + switch (whichprompt) { + default: +#ifdef DEBUG + prompt = "<internal prompt error>"; + rprompt = prompt; + break; +#endif + case 0: + prompt = nullstr; + rprompt = nullstr; + break; + case 1: + prompt = ps1val(); + rprompt = rps1val(); + break; + case 2: + prompt = ps2val(); + rprompt = rps2val(); + break; + } + +#ifdef SMALL + show = 1; +#else + show = !el; +#endif + pushstackmark(&smark, stackblocksize()); + if (show) { + out2str(expandstr(prompt)); + } else { + free(promptcache); + free(rpromptcache); + promptcache = savestr(expandstr(prompt)); + rpromptcache = savestr(expandstr(rprompt)); + + nl = strrchr(promptcache, '\n'); + if (nl) + outmem(promptcache, &nl[1] - promptcache, out2); + } + popstackmark(&smark); +} + +/* + * called by editline -- return the cached prompt expansion. + */ +const char * +getprompt(void *unused) +{ + const char *nl; + + nl = strrchr(promptcache, '\n'); + + if (nl) + return &nl[1]; + else + return promptcache; +} + +const char * +getrprompt(void *unused) +{ + return rpromptcache; +} + +const char *const * +findkwd(const char *s) +{ + return findstring( + s, parsekwd, sizeof(parsekwd) / sizeof(const char *) + ); +} diff --git a/bin/dash/src/parser.h b/bin/dash/src/parser.h new file mode 100644 index 00000000..6597faa8 --- /dev/null +++ b/bin/dash/src/parser.h @@ -0,0 +1,103 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)parser.h 8.3 (Berkeley) 5/4/95 + */ + +#include "token.h" + +/* control characters in argument strings */ +#define CTL_FIRST -127 /* first 'special' character */ +#define CTLESC -127 /* escape next character */ +#define CTLVAR -126 /* variable defn */ +#define CTLENDVAR -125 +#define CTLBACKQ -124 +#define CTLARI -122 /* arithmetic expression */ +#define CTLENDARI -121 +#define CTLQUOTEMARK -120 +#define CTL_LAST -120 /* last 'special' character */ + +/* variable substitution byte (follows CTLVAR) */ +#define VSTYPE 0x0f /* type of variable substitution */ +#define VSNUL 0x10 /* colon--treat the empty string as unset */ + +/* values of VSTYPE field */ +#define VSNORMAL 0x1 /* normal variable: $var or ${var} */ +#define VSMINUS 0x2 /* ${var-text} */ +#define VSPLUS 0x3 /* ${var+text} */ +#define VSQUESTION 0x4 /* ${var?message} */ +#define VSASSIGN 0x5 /* ${var=text} */ +#define VSTRIMRIGHT 0x6 /* ${var%pattern} */ +#define VSTRIMRIGHTMAX 0x7 /* ${var%%pattern} */ +#define VSTRIMLEFT 0x8 /* ${var#pattern} */ +#define VSTRIMLEFTMAX 0x9 /* ${var##pattern} */ +#define VSLENGTH 0xa /* ${#var} */ + +/* values of checkkwd variable */ +#define CHKALIAS 0x1 +#define CHKKWD 0x2 +#define CHKNL 0x4 +#define CHKEOFMARK 0x8 + + +/* + * NEOF is returned by parsecmd when it encounters an end of file. It + * must be distinct from NULL, so we use the address of a variable that + * happens to be handy. + */ +extern int lasttoken; +extern int tokpushback; +#define NEOF ((union node *)&tokpushback) +extern int whichprompt; /* 1 == PS1, 2 == PS2 */ +extern int checkkwd; + + +int isassignment(const char *p); +union node *parsecmd(int); +void fixredir(union node *, const char *, int); +const char *getprompt(void *); +const char *getrprompt(void *); +const char *const *findkwd(const char *); +char *endofname(const char *); +const char *expandstr(const char *); + +static inline int +goodname(const char *p) +{ + return !*endofname(p); +} + +static inline int parser_eof(void) +{ + return tokpushback && lasttoken == TEOF; +} diff --git a/bin/dash/src/redir.c b/bin/dash/src/redir.c new file mode 100644 index 00000000..895140c3 --- /dev/null +++ b/bin/dash/src/redir.c @@ -0,0 +1,483 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/stat.h> +#include <sys/types.h> +#include <sys/param.h> /* PIPE_BUF */ +#include <signal.h> +#include <string.h> +#include <fcntl.h> +#include <unistd.h> +#include <stdlib.h> + +/* + * Code for dealing with input/output redirection. + */ + +#include "main.h" +#include "shell.h" +#include "nodes.h" +#include "jobs.h" +#include "options.h" +#include "expand.h" +#include "redir.h" +#include "output.h" +#include "memalloc.h" +#include "error.h" + + +#define EMPTY -2 /* marks an unused slot in redirtab */ +#define CLOSED -1 /* fd opened for redir needs to be closed */ + +#ifndef PIPE_BUF +# define PIPESIZE 4096 /* amount of buffering in a pipe */ +#else +# define PIPESIZE PIPE_BUF +#endif + + +MKINIT +struct redirtab { + struct redirtab *next; + int renamed[10]; +}; + + +MKINIT struct redirtab *redirlist; + +/* Bit map of currently closed file descriptors. */ +static unsigned closed_redirs; + +STATIC int openredirect(union node *); +#ifdef notyet +STATIC void dupredirect(union node *, int, char[10]); +#else +STATIC void dupredirect(union node *, int); +#endif +STATIC int openhere(union node *); + + +static unsigned update_closed_redirs(int fd, int nfd) +{ + unsigned val = closed_redirs; + unsigned bit = 1 << fd; + + if (nfd >= 0) + closed_redirs &= ~bit; + else + closed_redirs |= bit; + + return val & bit; +} + + +/* + * Process a list of redirection commands. If the REDIR_PUSH flag is set, + * old file descriptors are stashed away so that the redirection can be + * undone by calling popredir. If the REDIR_BACKQ flag is set, then the + * standard output, and the standard error if it becomes a duplicate of + * stdout, is saved in memory. + */ + +void +redirect(union node *redir, int flags) +{ + union node *n; + struct redirtab *sv; + int i; + int fd; + int newfd; + int *p; +#if notyet + char memory[10]; /* file descriptors to write to memory */ + + for (i = 10 ; --i >= 0 ; ) + memory[i] = 0; + memory[1] = flags & REDIR_BACKQ; +#endif + if (!redir) + return; + sv = NULL; + INTOFF; + if (likely(flags & REDIR_PUSH)) + sv = redirlist; + n = redir; + do { + newfd = openredirect(n); + if (newfd < -1) + continue; + + fd = n->nfile.fd; + + if (sv) { + int closed; + + p = &sv->renamed[fd]; + i = *p; + + closed = update_closed_redirs(fd, newfd); + + if (likely(i == EMPTY)) { + i = CLOSED; + if (fd != newfd && !closed) { + i = savefd(fd, fd); + fd = -1; + } + } + + *p = i; + } + + if (fd == newfd) + continue; + +#ifdef notyet + dupredirect(n, newfd, memory); +#else + dupredirect(n, newfd); +#endif + } while ((n = n->nfile.next)); + INTON; +#ifdef notyet + if (memory[1]) + out1 = &memout; + if (memory[2]) + out2 = &memout; +#endif + if (flags & REDIR_SAVEFD2 && sv->renamed[2] >= 0) + preverrout.fd = sv->renamed[2]; +} + + +STATIC int +openredirect(union node *redir) +{ + struct stat64 sb; + char *fname; + int f; + + switch (redir->nfile.type) { + case NFROM: + fname = redir->nfile.expfname; + if ((f = open64(fname, O_RDONLY)) < 0) + goto eopen; + break; + case NFROMTO: + fname = redir->nfile.expfname; + if ((f = open64(fname, O_RDWR|O_CREAT, 0666)) < 0) + goto ecreate; + break; + case NTO: + /* Take care of noclobber mode. */ + if (Cflag) { + fname = redir->nfile.expfname; + if (stat64(fname, &sb) < 0) { + if ((f = open64(fname, O_WRONLY|O_CREAT|O_EXCL, 0666)) < 0) + goto ecreate; + } else if (!S_ISREG(sb.st_mode)) { + if ((f = open64(fname, O_WRONLY, 0666)) < 0) + goto ecreate; + if (!fstat64(f, &sb) && S_ISREG(sb.st_mode)) { + close(f); + errno = EEXIST; + goto ecreate; + } + } else { + errno = EEXIST; + goto ecreate; + } + break; + } + /* FALLTHROUGH */ + case NCLOBBER: + fname = redir->nfile.expfname; + if ((f = open64(fname, O_WRONLY|O_CREAT|O_TRUNC, 0666)) < 0) + goto ecreate; + break; + case NAPPEND: + fname = redir->nfile.expfname; + if ((f = open64(fname, O_WRONLY|O_CREAT|O_APPEND, 0666)) < 0) + goto ecreate; + break; + case NTOFD: + case NFROMFD: + f = redir->ndup.dupfd; + if (f == redir->nfile.fd) + f = -2; + break; + default: +#ifdef DEBUG + abort(); +#endif + /* Fall through to eliminate warning. */ + case NHERE: + case NXHERE: + f = openhere(redir); + break; + } + + return f; +ecreate: + sh_error("cannot create %s: %s", fname, errmsg(errno, E_CREAT)); +eopen: + sh_error("cannot open %s: %s", fname, errmsg(errno, E_OPEN)); +} + + +STATIC void +#ifdef notyet +dupredirect(redir, f, memory) +#else +dupredirect(redir, f) +#endif + union node *redir; + int f; +#ifdef notyet + char memory[10]; +#endif + { + int fd = redir->nfile.fd; + int err = 0; + +#ifdef notyet + memory[fd] = 0; +#endif + if (redir->nfile.type == NTOFD || redir->nfile.type == NFROMFD) { + /* if not ">&-" */ + if (f >= 0) { +#ifdef notyet + if (memory[f]) + memory[fd] = 1; + else +#endif + if (dup2(f, fd) < 0) { + err = errno; + goto err; + } + return; + } + f = fd; + } else if (dup2(f, fd) < 0) + err = errno; + + close(f); + if (err < 0) + goto err; + + return; + +err: + sh_error("%d: %s", f, strerror(err)); +} + + +/* + * Handle here documents. Normally we fork off a process to write the + * data to a pipe. If the document is short, we can stuff the data in + * the pipe without forking. + */ + +STATIC int +openhere(union node *redir) +{ + char *p; + int pip[2]; + size_t len = 0; + + if (pipe(pip) < 0) + sh_error("Pipe call failed"); + + p = redir->nhere.doc->narg.text; + if (redir->type == NXHERE) { + expandarg(redir->nhere.doc, NULL, EXP_QUOTED); + p = stackblock(); + } + + len = strlen(p); + if (len <= PIPESIZE) { + xwrite(pip[1], p, len); + goto out; + } + + if (forkshell((struct job *)NULL, (union node *)NULL, FORK_NOJOB) == 0) { + close(pip[0]); + signal(SIGINT, SIG_IGN); + signal(SIGQUIT, SIG_IGN); + signal(SIGHUP, SIG_IGN); +#ifdef SIGTSTP + signal(SIGTSTP, SIG_IGN); +#endif + signal(SIGPIPE, SIG_DFL); + xwrite(pip[1], p, len); + _exit(0); + } +out: + close(pip[1]); + return pip[0]; +} + + + +/* + * Undo the effects of the last redirection. + */ + +void +popredir(int drop) +{ + struct redirtab *rp; + int i; + + INTOFF; + rp = redirlist; + for (i = 0 ; i < 10 ; i++) { + int closed; + + if (rp->renamed[i] == EMPTY) + continue; + + closed = drop ? 1 : update_closed_redirs(i, rp->renamed[i]); + + switch (rp->renamed[i]) { + case CLOSED: + if (!closed) + close(i); + break; + default: + if (!drop) + dup2(rp->renamed[i], i); + close(rp->renamed[i]); + break; + } + } + redirlist = rp->next; + ckfree(rp); + INTON; +} + +/* + * Undo all redirections. Called on error or interrupt. + */ + +#ifdef mkinit + +INCLUDE "redir.h" + +EXITRESET { + /* + * Discard all saved file descriptors. + */ + unwindredir(0); +} + +FORKRESET { + redirlist = NULL; +} + +#endif + + + +/* + * Move a file descriptor to > 10. Invokes sh_error on error unless + * the original file dscriptor is not open. + */ + +int +savefd(int from, int ofd) +{ + int newfd; + int err; + + newfd = fcntl(from, F_DUPFD, 10); + err = newfd < 0 ? errno : 0; + if (err != EBADF) { + close(ofd); + if (err) + sh_error("%d: %s", from, strerror(err)); + else + fcntl(newfd, F_SETFD, FD_CLOEXEC); + } + + return newfd; +} + + +int +redirectsafe(union node *redir, int flags) +{ + int err; + volatile int saveint; + struct jmploc *volatile savehandler = handler; + struct jmploc jmploc; + + SAVEINT(saveint); + if (!(err = setjmp(jmploc.loc) * 2)) { + handler = &jmploc; + redirect(redir, flags); + } + handler = savehandler; + if (err && exception != EXERROR) + longjmp(handler->loc, 1); + RESTOREINT(saveint); + return err; +} + + +void unwindredir(struct redirtab *stop) +{ + while (redirlist != stop) + popredir(0); +} + + +struct redirtab *pushredir(union node *redir) +{ + struct redirtab *sv; + struct redirtab *q; + int i; + + q = redirlist; + if (!redir) + goto out; + + sv = ckmalloc(sizeof (struct redirtab)); + sv->next = q; + redirlist = sv; + for (i = 0; i < 10; i++) + sv->renamed[i] = EMPTY; + +out: + return q; +} diff --git a/bin/dash/src/redir.h b/bin/dash/src/redir.h new file mode 100644 index 00000000..1cf27616 --- /dev/null +++ b/bin/dash/src/redir.h @@ -0,0 +1,52 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)redir.h 8.2 (Berkeley) 5/4/95 + */ + +/* flags passed to redirect */ +#define REDIR_PUSH 01 /* save previous values of file descriptors */ +#ifdef notyet +#define REDIR_BACKQ 02 /* save the command output in memory */ +#endif +#define REDIR_SAVEFD2 03 /* set preverrout */ + +struct redirtab; +union node; +void redirect(union node *, int); +void popredir(int); +int savefd(int, int); +int redirectsafe(union node *, int); +void unwindredir(struct redirtab *stop); +struct redirtab *pushredir(union node *redir); + diff --git a/bin/dash/src/shell.h b/bin/dash/src/shell.h new file mode 100644 index 00000000..98edc8be --- /dev/null +++ b/bin/dash/src/shell.h @@ -0,0 +1,104 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)shell.h 8.2 (Berkeley) 5/4/95 + */ + +/* + * The follow should be set to reflect the type of system you have: + * JOBS -> 1 if you have Berkeley job control, 0 otherwise. + * SHORTNAMES -> 1 if your linker cannot handle long names. + * define BSD if you are running 4.2 BSD or later. + * define SYSV if you are running under System V. + * define DEBUG=1 to compile in debugging ('set -o debug' to turn on) + * define DEBUG=2 to compile in and turn on debugging. + * define DO_SHAREDVFORK to indicate that vfork(2) shares its address + * with its parent. + * + * When debugging is on, debugging info will be written to ./trace and + * a quit signal will generate a core dump. + */ + +#include <sys/param.h> + +#ifndef JOBS +#define JOBS 1 +#endif +#ifndef BSD +#define BSD 1 +#endif + +#ifndef DO_SHAREDVFORK +#if __NetBSD_Version__ >= 104000000 +#define DO_SHAREDVFORK +#endif +#endif + +typedef void *pointer; +#ifndef NULL +#define NULL (void *)0 +#endif +#define STATIC static +#define MKINIT /* empty */ + +extern char nullstr[1]; /* null string */ + + +#ifdef DEBUG +#define TRACE(param) trace param +#define TRACEV(param) tracev param +#else +#define TRACE(param) +#define TRACEV(param) +#endif + +#if defined(__GNUC__) && __GNUC__ < 3 +#define va_copy __va_copy +#endif + +#if !defined(__GNUC__) || (__GNUC__ == 2 && __GNUC_MINOR__ < 96) +#define __builtin_expect(x, expected_value) (x) +#endif + +#define likely(x) __builtin_expect(!!(x),1) +#define unlikely(x) __builtin_expect(!!(x),0) + +/* + * Hack to calculate maximum length. + * (length * 8 - 1) * log10(2) + 1 + 1 + 12 + * The second 1 is for the minus sign and the 12 is a safety margin. + */ +static inline int max_int_length(int bytes) +{ + return (bytes * 8 - 1) * 0.30102999566398119521 + 14; +} diff --git a/bin/dash/src/show.c b/bin/dash/src/show.c new file mode 100644 index 00000000..4a049e93 --- /dev/null +++ b/bin/dash/src/show.c @@ -0,0 +1,406 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <stdio.h> +#include <stdarg.h> + +#include "shell.h" +#include "parser.h" +#include "nodes.h" +#include "mystring.h" +#include "show.h" +#include "options.h" + + +#ifdef DEBUG +static void shtree(union node *, int, char *, FILE*); +static void shcmd(union node *, FILE *); +static void sharg(union node *, FILE *); +static void indent(int, char *, FILE *); +static void trstring(char *); + + +void +showtree(union node *n) +{ + trputs("showtree called\n"); + shtree(n, 1, NULL, stdout); +} + + +static void +shtree(union node *n, int ind, char *pfx, FILE *fp) +{ + struct nodelist *lp; + const char *s; + + if (n == NULL) + return; + + indent(ind, pfx, fp); + switch(n->type) { + case NSEMI: + s = "; "; + goto binop; + case NAND: + s = " && "; + goto binop; + case NOR: + s = " || "; +binop: + shtree(n->nbinary.ch1, ind, NULL, fp); + /* if (ind < 0) */ + fputs(s, fp); + shtree(n->nbinary.ch2, ind, NULL, fp); + break; + case NCMD: + shcmd(n, fp); + if (ind >= 0) + putc('\n', fp); + break; + case NPIPE: + for (lp = n->npipe.cmdlist ; lp ; lp = lp->next) { + shcmd(lp->n, fp); + if (lp->next) + fputs(" | ", fp); + } + if (n->npipe.backgnd) + fputs(" &", fp); + if (ind >= 0) + putc('\n', fp); + break; + default: + fprintf(fp, "<node type %d>", n->type); + if (ind >= 0) + putc('\n', fp); + break; + } +} + + + +static void +shcmd(union node *cmd, FILE *fp) +{ + union node *np; + int first; + const char *s; + int dftfd; + + first = 1; + for (np = cmd->ncmd.args ; np ; np = np->narg.next) { + if (! first) + putchar(' '); + sharg(np, fp); + first = 0; + } + for (np = cmd->ncmd.redirect ; np ; np = np->nfile.next) { + if (! first) + putchar(' '); + switch (np->nfile.type) { + case NTO: s = ">"; dftfd = 1; break; + case NCLOBBER: s = ">|"; dftfd = 1; break; + case NAPPEND: s = ">>"; dftfd = 1; break; + case NTOFD: s = ">&"; dftfd = 1; break; + case NFROM: s = "<"; dftfd = 0; break; + case NFROMFD: s = "<&"; dftfd = 0; break; + case NFROMTO: s = "<>"; dftfd = 0; break; + default: s = "*error*"; dftfd = 0; break; + } + if (np->nfile.fd != dftfd) + fprintf(fp, "%d", np->nfile.fd); + fputs(s, fp); + if (np->nfile.type == NTOFD || np->nfile.type == NFROMFD) { + fprintf(fp, "%d", np->ndup.dupfd); + } else { + sharg(np->nfile.fname, fp); + } + first = 0; + } +} + + + +static void +sharg(union node *arg, FILE *fp) +{ + char *p; + struct nodelist *bqlist; + int subtype; + + if (arg->type != NARG) { + printf("<node type %d>\n", arg->type); + abort(); + } + bqlist = arg->narg.backquote; + for (p = arg->narg.text ; *p ; p++) { + switch ((signed char)*p) { + case CTLESC: + putc(*++p, fp); + break; + case CTLVAR: + putc('$', fp); + putc('{', fp); + subtype = *++p; + if (subtype == VSLENGTH) + putc('#', fp); + + while (*p != '=') + putc(*p++, fp); + + if (subtype & VSNUL) + putc(':', fp); + + switch (subtype & VSTYPE) { + case VSNORMAL: + putc('}', fp); + break; + case VSMINUS: + putc('-', fp); + break; + case VSPLUS: + putc('+', fp); + break; + case VSQUESTION: + putc('?', fp); + break; + case VSASSIGN: + putc('=', fp); + break; + case VSTRIMLEFT: + putc('#', fp); + break; + case VSTRIMLEFTMAX: + putc('#', fp); + putc('#', fp); + break; + case VSTRIMRIGHT: + putc('%', fp); + break; + case VSTRIMRIGHTMAX: + putc('%', fp); + putc('%', fp); + break; + case VSLENGTH: + break; + default: + printf("<subtype %d>", subtype); + } + break; + case CTLENDVAR: + putc('}', fp); + break; + case CTLBACKQ: + putc('$', fp); + putc('(', fp); + shtree(bqlist->n, -1, NULL, fp); + putc(')', fp); + break; + default: + putc(*p, fp); + break; + } + } +} + + +static void +indent(int amount, char *pfx, FILE *fp) +{ + int i; + + for (i = 0 ; i < amount ; i++) { + if (pfx && i == amount - 1) + fputs(pfx, fp); + putc('\t', fp); + } +} + + + +/* + * Debugging stuff. + */ + + +FILE *tracefile; + + +void +trputc(int c) +{ + if (debug != 1) + return; + putc(c, tracefile); +} + +void +trace(const char *fmt, ...) +{ + va_list va; + + if (debug != 1) + return; + va_start(va, fmt); + (void) vfprintf(tracefile, fmt, va); + va_end(va); +} + +void +tracev(const char *fmt, va_list va) +{ + if (debug != 1) + return; + (void) vfprintf(tracefile, fmt, va); +} + + +void +trputs(const char *s) +{ + if (debug != 1) + return; + fputs(s, tracefile); +} + + +static void +trstring(char *s) +{ + char *p; + char c; + + if (debug != 1) + return; + putc('"', tracefile); + for (p = s ; *p ; p++) { + switch ((signed char)*p) { + case '\n': c = 'n'; goto backslash; + case '\t': c = 't'; goto backslash; + case '\r': c = 'r'; goto backslash; + case '"': c = '"'; goto backslash; + case '\\': c = '\\'; goto backslash; + case CTLESC: c = 'e'; goto backslash; + case CTLVAR: c = 'v'; goto backslash; + case CTLBACKQ: c = 'q'; goto backslash; +backslash: putc('\\', tracefile); + putc(c, tracefile); + break; + default: + if (*p >= ' ' && *p <= '~') + putc(*p, tracefile); + else { + putc('\\', tracefile); + putc(*p >> 6 & 03, tracefile); + putc(*p >> 3 & 07, tracefile); + putc(*p & 07, tracefile); + } + break; + } + } + putc('"', tracefile); +} + + +void +trargs(char **ap) +{ + if (debug != 1) + return; + while (*ap) { + trstring(*ap++); + if (*ap) + putc(' ', tracefile); + else + putc('\n', tracefile); + } +} + + +void +opentrace(void) +{ + char s[100]; +#ifdef O_APPEND + int flags; +#endif + + if (debug != 1) { + if (tracefile) + fflush(tracefile); + /* leave open because libedit might be using it */ + return; + } +#ifdef not_this_way + { + char *p; + if ((p = getenv(homestr)) == NULL) { + if (geteuid() == 0) + p = "/"; + else + p = "/tmp"; + } + scopy(p, s); + strcat(s, "/trace"); + } +#else + scopy("./trace", s); +#endif /* not_this_way */ + if (tracefile) { +#ifndef __KLIBC__ + if (!freopen(s, "a", tracefile)) { +#else + if (!(!fclose(tracefile) && (tracefile = fopen(s, "a")))) { +#endif /* __KLIBC__ */ + fprintf(stderr, "Can't re-open %s\n", s); + debug = 0; + return; + } + } else { + if ((tracefile = fopen(s, "a")) == NULL) { + fprintf(stderr, "Can't open %s\n", s); + debug = 0; + return; + } + } +#ifdef O_APPEND + if ((flags = fcntl(fileno(tracefile), F_GETFL, 0)) >= 0) + fcntl(fileno(tracefile), F_SETFL, flags | O_APPEND); +#endif +#ifndef __KLIBC__ + setlinebuf(tracefile); +#endif /* __KLIBC__ */ + fputs("\nTracing started.\n", tracefile); +} +#endif /* DEBUG */ diff --git a/bin/dash/src/show.h b/bin/dash/src/show.h new file mode 100644 index 00000000..d0ccac79 --- /dev/null +++ b/bin/dash/src/show.h @@ -0,0 +1,45 @@ +/*- + * Copyright (c) 1995 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)show.h 1.1 (Berkeley) 5/4/95 + */ + +#include <stdarg.h> + +#ifdef DEBUG +union node; +void showtree(union node *); +void trace(const char *, ...); +void tracev(const char *, va_list); +void trargs(char **); +void trputc(int); +void trputs(const char *); +void opentrace(void); +#endif diff --git a/bin/dash/src/system.c b/bin/dash/src/system.c new file mode 100644 index 00000000..844a6410 --- /dev/null +++ b/bin/dash/src/system.c @@ -0,0 +1,199 @@ +/* + * Copyright (c) 2004 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef HAVE_ISALPHA +#define isalnum _isalnum +#define iscntrl _iscntrl +#define islower _islower +#define isspace _isspace +#define isalpha _isalpha +#define isdigit _isdigit +#define isprint _isprint +#define isupper _isupper +#define isblank _isblank +#define isgraph _isgraph +#define ispunct _ispunct +#define isxdigit _isxdigit +#include <ctype.h> +#undef isalnum +#undef iscntrl +#undef islower +#undef isspace +#undef isalpha +#undef isdigit +#undef isprint +#undef isupper +#undef isblank +#undef isgraph +#undef ispunct +#undef isxdigit +#endif + +#include <signal.h> +#include <string.h> + +#include "error.h" +#include "output.h" +#include "system.h" + +#ifndef HAVE_MEMPCPY +void *mempcpy(void *dest, const void *src, size_t n) +{ + return memcpy(dest, src, n) + n; +} +#endif + +#ifndef HAVE_STPCPY +char *stpcpy(char *dest, const char *src) +{ + size_t len = strlen(src); + dest[len] = 0; + return mempcpy(dest, src, len); +} +#endif + +#ifndef HAVE_STRCHRNUL +char *strchrnul(const char *s, int c) +{ + char *p = strchr(s, c); + if (!p) + p = (char *)s + strlen(s); + return p; +} +#endif + +#ifndef HAVE_STRSIGNAL +char *strsignal(int sig) +{ + static char buf[19]; + + if ((unsigned)sig < NSIG && sys_siglist[sig]) + return (char *)sys_siglist[sig]; + fmtstr(buf, sizeof(buf), "Signal %d", sig); + return buf; +} +#endif + +#ifndef HAVE_BSEARCH +void *bsearch(const void *key, const void *base, size_t nmemb, + size_t size, int (*cmp)(const void *, const void *)) +{ + while (nmemb) { + size_t mididx = nmemb / 2; + const void *midobj = base + mididx * size; + int diff = cmp(key, midobj); + + if (diff == 0) + return (void *)midobj; + + if (diff > 0) { + base = midobj + size; + nmemb -= mididx + 1; + } else + nmemb = mididx; + } + + return 0; +} +#endif + +#ifndef HAVE_SYSCONF +long sysconf(int name) +{ + sh_error("no sysconf for: %d", name); +} +#endif + +#ifndef HAVE_ISALPHA +int isalnum(int c) { + return _isalnum(c); +} + + +int iscntrl(int c) { + return _iscntrl(c); +} + + +int islower(int c) { + return _islower(c); +} + + +int isspace(int c) { + return _isspace(c); +} + + +int isalpha(int c) { + return _isalpha(c); +} + + +int isdigit(int c) { + return _isdigit(c); +} + + +int isprint(int c) { + return _isprint(c); +} + + +int isupper(int c) { + return _isupper(c); +} + + +#if HAVE_DECL_ISBLANK +int isblank(int c) { + return _isblank(c); +} +#endif + + +int isgraph(int c) { + return _isgraph(c); +} + + +int ispunct(int c) { + return _ispunct(c); +} + + +int isxdigit(int c) { + return _isxdigit(c); +} +#endif + +#if !HAVE_DECL_ISBLANK +int isblank(int c) { + return c == ' ' || c == '\t'; +} +#endif diff --git a/bin/dash/src/system.h b/bin/dash/src/system.h new file mode 100644 index 00000000..007952c5 --- /dev/null +++ b/bin/dash/src/system.h @@ -0,0 +1,118 @@ +/* + * Copyright (c) 2004 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <limits.h> +#include <signal.h> +#include <sys/types.h> + +#ifndef SSIZE_MAX +#define SSIZE_MAX ((ssize_t)((size_t)-1 >> 1)) +#endif + +static inline void sigclearmask(void) +{ +#if defined(HAVE_SIGSETMASK) && \ + (!defined(__GLIBC__) || \ + (defined(__GNUC__) && (__GNUC__ * 1000 + __GNUC_MINOR__) >= 4006)) +#ifdef __GLIBC__ +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" +#endif + sigsetmask(0); +#ifdef __GLIBC__ +#pragma GCC diagnostic pop +#endif +#else + sigset_t set; + sigemptyset(&set); + sigprocmask(SIG_SETMASK, &set, 0); +#endif +} + +#ifndef HAVE_MEMPCPY +void *mempcpy(void *, const void *, size_t); +#endif + +#ifndef HAVE_STPCPY +char *stpcpy(char *, const char *); +#endif + +#ifndef HAVE_STRCHRNUL +char *strchrnul(const char *, int); +#endif + +#ifndef HAVE_STRSIGNAL +char *strsignal(int); +#endif + +#ifndef HAVE_STRTOD +static inline double strtod(const char *nptr, char **endptr) +{ + *endptr = (char *)nptr; + return 0; +} +#endif + +#ifndef HAVE_STRTOIMAX +#define strtoimax strtoll +#endif + +#ifndef HAVE_STRTOUMAX +#define strtoumax strtoull +#endif + +#ifndef HAVE_BSEARCH +void *bsearch(const void *, const void *, size_t, size_t, + int (*)(const void *, const void *)); +#endif + +#ifndef HAVE_KILLPG +static inline int killpg(pid_t pid, int signal) +{ +#ifdef DEBUG + if (pid < 0) + abort(); +#endif + return kill(-pid, signal); +} +#endif + +#ifndef HAVE_SYSCONF +#define _SC_CLK_TCK 2 +long sysconf(int) __attribute__((__noreturn__)); +#endif + +#if !HAVE_DECL_ISBLANK +int isblank(int c); +#endif + +/* + * A trick to suppress uninitialized variable warning without generating any + * code + */ +#define uninitialized_var(x) x = x diff --git a/bin/dash/src/trap.c b/bin/dash/src/trap.c new file mode 100644 index 00000000..cd84814f --- /dev/null +++ b/bin/dash/src/trap.c @@ -0,0 +1,446 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <signal.h> +#include <unistd.h> +#include <stdlib.h> +#include <string.h> + +#include "shell.h" +#include "main.h" +#include "nodes.h" /* for other headers */ +#include "eval.h" +#include "init.h" +#include "jobs.h" +#include "show.h" +#include "options.h" +#include "syntax.h" +#include "output.h" +#include "memalloc.h" +#include "error.h" +#include "trap.h" +#include "mystring.h" + +/* + * Sigmode records the current value of the signal handlers for the various + * modes. A value of zero means that the current handler is not known. + * S_HARD_IGN indicates that the signal was ignored on entry to the shell, + */ + +#define S_DFL 1 /* default signal handling (SIG_DFL) */ +#define S_CATCH 2 /* signal is caught */ +#define S_IGN 3 /* signal is ignored (SIG_IGN) */ +#define S_HARD_IGN 4 /* signal is ignored permenantly */ +#define S_RESET 5 /* temporary - to reset a hard ignored sig */ + + +/* trap handler commands */ +MKINIT char *trap[NSIG]; +/* number of non-null traps */ +int trapcnt; +/* current value of signal */ +char sigmode[NSIG - 1]; +/* indicates specified signal received */ +static char gotsig[NSIG - 1]; +/* last pending signal */ +volatile sig_atomic_t pending_sig; +/* received SIGCHLD */ +volatile sig_atomic_t gotsigchld; + +extern char *signal_names[]; + +static int decode_signum(const char *); + +#ifdef mkinit +INCLUDE "memalloc.h" +INCLUDE "trap.h" + +INIT { + sigmode[SIGCHLD - 1] = S_DFL; + setsignal(SIGCHLD); +} + +FORKRESET { + char **tp; + + INTOFF; + for (tp = trap ; tp < &trap[NSIG] ; tp++) { + if (*tp && **tp) { /* trap not NULL or SIG_IGN */ + ckfree(*tp); + *tp = NULL; + if (tp != &trap[0]) + setsignal(tp - trap); + } + } + trapcnt = 0; + INTON; +} +#endif + +/* + * The trap builtin. + */ + +int +trapcmd(int argc, char **argv) +{ + char *action; + char **ap; + int signo; + + nextopt(nullstr); + ap = argptr; + if (!*ap) { + for (signo = 0 ; signo < NSIG ; signo++) { + if (trap[signo] != NULL) { + out1fmt( + "trap -- %s %s\n", + single_quote(trap[signo]), + signal_names[signo] + ); + } + } + return 0; + } + if (!ap[1] || decode_signum(*ap) >= 0) + action = NULL; + else + action = *ap++; + while (*ap) { + if ((signo = decode_signal(*ap, 0)) < 0) { + outfmt(out2, "trap: %s: bad trap\n", *ap); + return 1; + } + INTOFF; + if (action) { + if (action[0] == '-' && action[1] == '\0') + action = NULL; + else { + if (*action) + trapcnt++; + action = savestr(action); + } + } + if (trap[signo]) { + if (*trap[signo]) + trapcnt--; + ckfree(trap[signo]); + } + trap[signo] = action; + if (signo != 0) + setsignal(signo); + INTON; + ap++; + } + return 0; +} + + + +/* + * Set the signal handler for the specified signal. The routine figures + * out what it should be set to. + */ + +void +setsignal(int signo) +{ + int action; + int lvforked; + char *t, tsig; + struct sigaction act; + + lvforked = vforked; + + if ((t = trap[signo]) == NULL) + action = S_DFL; + else if (*t != '\0') + action = S_CATCH; + else + action = S_IGN; + if (rootshell && action == S_DFL && !lvforked) { + switch (signo) { + case SIGINT: + if (iflag || minusc || sflag == 0) + action = S_CATCH; + break; + case SIGQUIT: +#ifdef DEBUG + if (debug) + break; +#endif + /* FALLTHROUGH */ + case SIGTERM: + if (iflag) + action = S_IGN; + break; +#if JOBS + case SIGTSTP: + case SIGTTOU: + if (mflag) + action = S_IGN; + break; +#endif + } + } + + if (signo == SIGCHLD) + action = S_CATCH; + + t = &sigmode[signo - 1]; + tsig = *t; + if (tsig == 0) { + /* + * current setting unknown + */ + if (sigaction(signo, 0, &act) == -1) { + /* + * Pretend it worked; maybe we should give a warning + * here, but other shells don't. We don't alter + * sigmode, so that we retry every time. + */ + return; + } + if (act.sa_handler == SIG_IGN) { + if (mflag && (signo == SIGTSTP || + signo == SIGTTIN || signo == SIGTTOU)) { + tsig = S_IGN; /* don't hard ignore these */ + } else + tsig = S_HARD_IGN; + } else { + tsig = S_RESET; /* force to be set */ + } + } + if (tsig == S_HARD_IGN || tsig == action) + return; + switch (action) { + case S_CATCH: + act.sa_handler = onsig; + break; + case S_IGN: + act.sa_handler = SIG_IGN; + break; + default: + act.sa_handler = SIG_DFL; + } + if (!lvforked) + *t = action; + act.sa_flags = 0; + sigfillset(&act.sa_mask); + sigaction(signo, &act, 0); +} + +/* + * Ignore a signal. + */ + +void +ignoresig(int signo) +{ + if (sigmode[signo - 1] != S_IGN && sigmode[signo - 1] != S_HARD_IGN) { + signal(signo, SIG_IGN); + } + if (!vforked) + sigmode[signo - 1] = S_HARD_IGN; +} + + + +/* + * Signal handler. + */ + +void +onsig(int signo) +{ + if (vforked) + return; + + if (signo == SIGCHLD) { + gotsigchld = 1; + if (!trap[SIGCHLD]) + return; + } + + gotsig[signo - 1] = 1; + pending_sig = signo; + + if (signo == SIGINT && !trap[SIGINT]) { + if (!suppressint) + onint(); + intpending = 1; + } +} + + + +/* + * Called to execute a trap. Perhaps we should avoid entering new trap + * handlers while we are executing a trap handler. + */ + +void dotrap(void) +{ + char *p; + char *q; + int i; + int status, last_status; + + if (!pending_sig) + return; + + status = savestatus; + last_status = status; + if (likely(status < 0)) { + status = exitstatus; + savestatus = status; + } + pending_sig = 0; + barrier(); + + for (i = 0, q = gotsig; i < NSIG - 1; i++, q++) { + if (!*q) + continue; + + if (evalskip) { + pending_sig = i + 1; + break; + } + + *q = 0; + + p = trap[i + 1]; + if (!p) + continue; + evalstring(p, 0); + if (evalskip != SKIPFUNC) + exitstatus = status; + } + + savestatus = last_status; +} + + + +/* + * Controls whether the shell is interactive or not. + */ + + +void +setinteractive(int on) +{ + static int is_interactive; + + if (++on == is_interactive) + return; + is_interactive = on; + setsignal(SIGINT); + setsignal(SIGQUIT); + setsignal(SIGTERM); +} + + + +/* + * Called to exit the shell. + */ + +void +exitshell(void) +{ + struct jmploc loc; + char *p; + + savestatus = exitstatus; + TRACE(("pid %d, exitshell(%d)\n", getpid(), savestatus)); + if (setjmp(loc.loc)) + goto out; + handler = &loc; + if ((p = trap[0])) { + trap[0] = NULL; + evalskip = 0; + evalstring(p, 0); + evalskip = SKIPFUNCDEF; + } +out: + exitreset(); + /* + * Disable job control so that whoever had the foreground before we + * started can get it back. + */ + if (likely(!setjmp(loc.loc))) + setjobctl(0); + flushall(); + _exit(exitstatus); + /* NOTREACHED */ +} + +static int decode_signum(const char *string) +{ + int signo = -1; + + if (is_number(string)) { + signo = atoi(string); + if (signo >= NSIG) + signo = -1; + } + + return signo; +} + +int decode_signal(const char *string, int minsig) +{ + int signo; + + signo = decode_signum(string); + if (signo >= 0) + return signo; + + for (signo = minsig; signo < NSIG; signo++) { + if (!strcasecmp(string, signal_names[signo])) { + return signo; + } + } + + return -1; +} + +void sigblockall(sigset_t *oldmask) +{ + sigset_t mask; + + sigfillset(&mask); + sigprocmask(SIG_SETMASK, &mask, oldmask); +} diff --git a/bin/dash/src/trap.h b/bin/dash/src/trap.h new file mode 100644 index 00000000..beaf6605 --- /dev/null +++ b/bin/dash/src/trap.h @@ -0,0 +1,57 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)trap.h 8.3 (Berkeley) 6/5/95 + */ + +#include <signal.h> + +extern int trapcnt; +extern char sigmode[]; +extern volatile sig_atomic_t pending_sig; +extern volatile sig_atomic_t gotsigchld; + +int trapcmd(int, char **); +void setsignal(int); +void ignoresig(int); +void onsig(int); +void dotrap(void); +void setinteractive(int); +void exitshell(void) __attribute__((__noreturn__)); +int decode_signal(const char *, int); +void sigblockall(sigset_t *oldmask); + +static inline int have_traps(void) +{ + return trapcnt; +} diff --git a/bin/dash/src/var.c b/bin/dash/src/var.c new file mode 100644 index 00000000..ca9504ef --- /dev/null +++ b/bin/dash/src/var.c @@ -0,0 +1,676 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#ifdef HAVE_PATHS_H +#include <paths.h> +#endif + +/* + * Shell variables. + */ + +#include "shell.h" +#include "output.h" +#include "expand.h" +#include "nodes.h" /* for other headers */ +#include "exec.h" +#include "syntax.h" +#include "options.h" +#include "mail.h" +#include "var.h" +#include "memalloc.h" +#include "error.h" +#include "mystring.h" +#include "parser.h" +#include "show.h" +#ifndef SMALL +#include "myhistedit.h" +#endif +#include "system.h" + + +#define VTABSIZE 39 + + +struct localvar_list { + struct localvar_list *next; + struct localvar *lv; +}; + +MKINIT struct localvar_list *localvar_stack; + +const char defpathvar[] = + "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"; +char defifsvar[] = "IFS= \t\n"; +MKINIT char defoptindvar[] = "OPTIND=1"; + +int lineno; +char linenovar[sizeof("LINENO=")+sizeof(int)*CHAR_BIT/3+1] = "LINENO="; + +/* Some macros in var.h depend on the order, add new variables to the end. */ +struct var varinit[] = { +#if ATTY + { 0, VSTRFIXED|VTEXTFIXED|VUNSET, "ATTY\0", 0 }, +#endif + { 0, VSTRFIXED|VTEXTFIXED, defifsvar, 0 }, + { 0, VSTRFIXED|VTEXTFIXED|VUNSET, "MAIL\0", changemail }, + { 0, VSTRFIXED|VTEXTFIXED|VUNSET, "MAILPATH\0", changemail }, + { 0, VSTRFIXED|VTEXTFIXED, defpathvar, changepath }, + { 0, VSTRFIXED|VTEXTFIXED, "PS1=$ ", 0 }, + { 0, VSTRFIXED|VTEXTFIXED, "PS2=> ", 0 }, + { 0, VSTRFIXED|VTEXTFIXED, "PS4=+ ", 0 }, + { 0, VSTRFIXED|VTEXTFIXED|VUNSET, "RPS1\0", 0 }, + { 0, VSTRFIXED|VTEXTFIXED|VUNSET, "RPS2\0", 0 }, + { 0, VSTRFIXED|VTEXTFIXED, defoptindvar, getoptsreset }, +#ifdef WITH_LINENO + { 0, VSTRFIXED|VTEXTFIXED, linenovar, 0 }, +#endif +#ifndef SMALL + { 0, VSTRFIXED|VTEXTFIXED|VUNSET, "TERM\0", 0 }, + { 0, VSTRFIXED|VTEXTFIXED|VUNSET, "HISTSIZE\0", sethistsize }, +#endif +}; + +STATIC struct var *vartab[VTABSIZE]; + +STATIC struct var **hashvar(const char *); +STATIC int vpcmp(const void *, const void *); +STATIC struct var **findvar(struct var **, const char *); + +/* + * Initialize the varable symbol tables and import the environment + */ + +#ifdef mkinit +INCLUDE <unistd.h> +INCLUDE <sys/types.h> +INCLUDE <sys/stat.h> +INCLUDE "cd.h" +INCLUDE "output.h" +INCLUDE "var.h" +MKINIT char **environ; +INIT { + char **envp; + static char ppid[32] = "PPID="; + const char *p; + struct stat64 st1, st2; + + initvar(); + for (envp = environ ; *envp ; envp++) { + p = endofname(*envp); + if (p != *envp && *p == '=') { + setvareq(*envp, VEXPORT|VTEXTFIXED); + } + } + + setvareq(defifsvar, VTEXTFIXED); + setvareq(defoptindvar, VTEXTFIXED); + + fmtstr(ppid + 5, sizeof(ppid) - 5, "%ld", (long) getppid()); + setvareq(ppid, VTEXTFIXED); + + p = lookupvar("PWD"); + if (p) + if (*p != '/' || stat64(p, &st1) || stat64(".", &st2) || + st1.st_dev != st2.st_dev || st1.st_ino != st2.st_ino) + p = 0; + setpwd(p, 0); +} + +RESET { + unwindlocalvars(0); +} +#endif + + +/* + * This routine initializes the builtin variables. It is called when the + * shell is initialized. + */ + +void +initvar(void) +{ + struct var *vp; + struct var *end; + struct var **vpp; + + vp = varinit; + end = vp + sizeof(varinit) / sizeof(varinit[0]); + do { + vpp = hashvar(vp->text); + vp->next = *vpp; + *vpp = vp; + } while (++vp < end); + /* + * PS1 depends on uid + */ + if (!geteuid()) + vps1.text = "PS1=# "; +} + +/* + * Set the value of a variable. The flags argument is ored with the + * flags of the variable. If val is NULL, the variable is unset. + */ + +struct var *setvar(const char *name, const char *val, int flags) +{ + char *p, *q; + size_t namelen; + char *nameeq; + size_t vallen; + struct var *vp; + + q = endofname(name); + p = strchrnul(q, '='); + namelen = p - name; + if (!namelen || p != q) + sh_error("%.*s: bad variable name", namelen, name); + vallen = 0; + if (val == NULL) { + flags |= VUNSET; + } else { + vallen = strlen(val); + } + INTOFF; + p = mempcpy(nameeq = ckmalloc(namelen + vallen + 2), name, namelen); + if (val) { + *p++ = '='; + p = mempcpy(p, val, vallen); + } + *p = '\0'; + vp = setvareq(nameeq, flags | VNOSAVE); + INTON; + + return vp; +} + +/* + * Set the given integer as the value of a variable. The flags argument is + * ored with the flags of the variable. + */ + +intmax_t setvarint(const char *name, intmax_t val, int flags) +{ + int len = max_int_length(sizeof(val)); + char buf[len]; + + fmtstr(buf, len, "%" PRIdMAX, val); + setvar(name, buf, flags); + return val; +} + + + +/* + * Same as setvar except that the variable and value are passed in + * the first argument as name=value. Since the first argument will + * be actually stored in the table, it should not be a string that + * will go away. + * Called with interrupts off. + */ + +struct var *setvareq(char *s, int flags) +{ + struct var *vp, **vpp; + + vpp = hashvar(s); + flags |= (VEXPORT & (((unsigned) (1 - aflag)) - 1)); + vpp = findvar(vpp, s); + vp = *vpp; + if (vp) { + if (vp->flags & VREADONLY) { + const char *n; + + if (flags & VNOSAVE) + free(s); + n = vp->text; + sh_error("%.*s: is read only", strchrnul(n, '=') - n, + n); + } + + if (flags & VNOSET) + goto out; + + if (vp->func && (flags & VNOFUNC) == 0) + (*vp->func)(strchrnul(s, '=') + 1); + + if ((vp->flags & (VTEXTFIXED|VSTACK)) == 0) + ckfree(vp->text); + + if (((flags & (VEXPORT|VREADONLY|VSTRFIXED|VUNSET)) | + (vp->flags & VSTRFIXED)) == VUNSET) { + *vpp = vp->next; + ckfree(vp); +out_free: + if ((flags & (VTEXTFIXED|VSTACK|VNOSAVE)) == VNOSAVE) + ckfree(s); + goto out; + } + + flags |= vp->flags & ~(VTEXTFIXED|VSTACK|VNOSAVE|VUNSET); + } else { + if (flags & VNOSET) + goto out; + if ((flags & (VEXPORT|VREADONLY|VSTRFIXED|VUNSET)) == VUNSET) + goto out_free; + /* not found */ + vp = ckmalloc(sizeof (*vp)); + vp->next = *vpp; + vp->func = NULL; + *vpp = vp; + } + if (!(flags & (VTEXTFIXED|VSTACK|VNOSAVE))) + s = savestr(s); + vp->text = s; + vp->flags = flags; + +out: + return vp; +} + +/* + * Find the value of a variable. Returns NULL if not set. + */ + +char * +lookupvar(const char *name) +{ + struct var *v; + + if ((v = *findvar(hashvar(name), name)) && !(v->flags & VUNSET)) { +#ifdef WITH_LINENO + if (v == &vlineno && v->text == linenovar) { + fmtstr(linenovar+7, sizeof(linenovar)-7, "%d", lineno); + } +#endif + return strchrnul(v->text, '=') + 1; + } + return NULL; +} + +intmax_t lookupvarint(const char *name) +{ + return atomax(lookupvar(name) ?: nullstr, 0); +} + + + +/* + * Generate a list of variables satisfying the given conditions. + */ + +char ** +listvars(int on, int off, char ***end) +{ + struct var **vpp; + struct var *vp; + char **ep; + int mask; + + STARTSTACKSTR(ep); + vpp = vartab; + mask = on | off; + do { + for (vp = *vpp ; vp ; vp = vp->next) + if ((vp->flags & mask) == on) { + if (ep == stackstrend()) + ep = growstackstr(); + *ep++ = (char *) vp->text; + } + } while (++vpp < vartab + VTABSIZE); + if (ep == stackstrend()) + ep = growstackstr(); + if (end) + *end = ep; + *ep++ = NULL; + return grabstackstr(ep); +} + + + +/* + * POSIX requires that 'set' (but not export or readonly) output the + * variables in lexicographic order - by the locale's collating order (sigh). + * Maybe we could keep them in an ordered balanced binary tree + * instead of hashed lists. + * For now just roll 'em through qsort for printing... + */ + +int +showvars(const char *prefix, int on, int off) +{ + const char *sep; + char **ep, **epend; + + ep = listvars(on, off, &epend); + qsort(ep, epend - ep, sizeof(char *), vpcmp); + + sep = *prefix ? spcstr : prefix; + + for (; ep < epend; ep++) { + const char *p; + const char *q; + + p = strchrnul(*ep, '='); + q = nullstr; + if (*p) + q = single_quote(++p); + + out1fmt("%s%s%.*s%s\n", prefix, sep, (int)(p - *ep), *ep, q); + } + + return 0; +} + + + +/* + * The export and readonly commands. + */ + +int +exportcmd(int argc, char **argv) +{ + struct var *vp; + char *name; + const char *p; + char **aptr; + int flag = argv[0][0] == 'r'? VREADONLY : VEXPORT; + int notp; + + notp = nextopt("p") - 'p'; + if (notp && ((name = *(aptr = argptr)))) { + do { + if ((p = strchr(name, '=')) != NULL) { + p++; + } else { + if ((vp = *findvar(hashvar(name), name))) { + vp->flags |= flag; + continue; + } + } + setvar(name, p, flag); + } while ((name = *++aptr) != NULL); + } else { + showvars(argv[0], flag, 0); + } + return 0; +} + + +/* + * The "local" command. + */ + +int +localcmd(int argc, char **argv) +{ + char *name; + + if (!localvar_stack) + sh_error("not in a function"); + + argv = argptr; + while ((name = *argv++) != NULL) { + mklocal(name, 0); + } + return 0; +} + + +/* + * Make a variable a local variable. When a variable is made local, it's + * value and flags are saved in a localvar structure. The saved values + * will be restored when the shell function returns. We handle the name + * "-" as a special case. + */ + +void mklocal(char *name, int flags) +{ + struct localvar *lvp; + struct var **vpp; + struct var *vp; + + INTOFF; + lvp = ckmalloc(sizeof (struct localvar)); + if (name[0] == '-' && name[1] == '\0') { + char *p; + p = ckmalloc(sizeof(optlist)); + lvp->text = memcpy(p, optlist, sizeof(optlist)); + vp = NULL; + } else { + char *eq; + + vpp = hashvar(name); + vp = *findvar(vpp, name); + eq = strchr(name, '='); + if (vp == NULL) { + if (eq) + vp = setvareq(name, VSTRFIXED | flags); + else + vp = setvar(name, NULL, VSTRFIXED | flags); + lvp->flags = VUNSET; + } else { + lvp->text = vp->text; + lvp->flags = vp->flags; + vp->flags |= VSTRFIXED|VTEXTFIXED; + if (eq) + setvareq(name, flags); + } + } + lvp->vp = vp; + lvp->next = localvar_stack->lv; + localvar_stack->lv = lvp; + INTON; +} + + +/* + * Called after a function returns. + * Interrupts must be off. + */ + +static void +poplocalvars(void) +{ + struct localvar_list *ll; + struct localvar *lvp, *next; + struct var *vp; + + INTOFF; + ll = localvar_stack; + localvar_stack = ll->next; + + next = ll->lv; + ckfree(ll); + + while ((lvp = next) != NULL) { + next = lvp->next; + vp = lvp->vp; + TRACE(("poplocalvar %s\n", vp ? vp->text : "-")); + if (vp == NULL) { /* $- saved */ + memcpy(optlist, lvp->text, sizeof(optlist)); + ckfree(lvp->text); + optschanged(); + } else if (lvp->flags == VUNSET) { + vp->flags &= ~(VSTRFIXED|VREADONLY); + unsetvar(vp->text); + } else { + if (vp->func) + (*vp->func)(strchrnul(lvp->text, '=') + 1); + if ((vp->flags & (VTEXTFIXED|VSTACK)) == 0) + ckfree(vp->text); + vp->flags = lvp->flags; + vp->text = lvp->text; + } + ckfree(lvp); + } + INTON; +} + + +/* + * Create a new localvar environment. + */ +struct localvar_list *pushlocalvars(int push) +{ + struct localvar_list *ll; + struct localvar_list *top; + + top = localvar_stack; + if (!push) + goto out; + + INTOFF; + ll = ckmalloc(sizeof(*ll)); + ll->lv = NULL; + ll->next = top; + localvar_stack = ll; + INTON; + +out: + return top; +} + + +void unwindlocalvars(struct localvar_list *stop) +{ + while (localvar_stack != stop) + poplocalvars(); +} + + +/* + * The unset builtin command. We unset the function before we unset the + * variable to allow a function to be unset when there is a readonly variable + * with the same name. + */ + +int +unsetcmd(int argc, char **argv) +{ + char **ap; + int i; + int flag = 0; + + while ((i = nextopt("vf")) != '\0') { + flag = i; + } + + for (ap = argptr; *ap ; ap++) { + if (flag != 'f') { + unsetvar(*ap); + continue; + } + if (flag != 'v') + unsetfunc(*ap); + } + return 0; +} + + +/* + * Unset the specified variable. + */ + +void unsetvar(const char *s) +{ + setvar(s, 0, 0); +} + + + +/* + * Find the appropriate entry in the hash table from the name. + */ + +STATIC struct var ** +hashvar(const char *p) +{ + unsigned int hashval; + + hashval = ((unsigned char) *p) << 4; + while (*p && *p != '=') + hashval += (unsigned char) *p++; + return &vartab[hashval % VTABSIZE]; +} + + + +/* + * Compares two strings up to the first = or '\0'. The first + * string must be terminated by '='; the second may be terminated by + * either '=' or '\0'. + */ + +int +varcmp(const char *p, const char *q) +{ + int c, d; + + while ((c = *p) == (d = *q)) { + if (!c || c == '=') + goto out; + p++; + q++; + } + if (c == '=') + c = 0; + if (d == '=') + d = 0; +out: + return c - d; +} + +STATIC int +vpcmp(const void *a, const void *b) +{ + return varcmp(*(const char **)a, *(const char **)b); +} + +STATIC struct var ** +findvar(struct var **vpp, const char *name) +{ + for (; *vpp; vpp = &(*vpp)->next) { + if (varequal((*vpp)->text, name)) { + break; + } + } + return vpp; +} diff --git a/bin/dash/src/var.h b/bin/dash/src/var.h new file mode 100644 index 00000000..1d1d87a5 --- /dev/null +++ b/bin/dash/src/var.h @@ -0,0 +1,173 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)var.h 8.2 (Berkeley) 5/4/95 + */ + +#include <inttypes.h> + +/* + * Shell variables. + */ + +/* flags */ +#define VEXPORT 0x01 /* variable is exported */ +#define VREADONLY 0x02 /* variable cannot be modified */ +#define VSTRFIXED 0x04 /* variable struct is statically allocated */ +#define VTEXTFIXED 0x08 /* text is statically allocated */ +#define VSTACK 0x10 /* text is allocated on the stack */ +#define VUNSET 0x20 /* the variable is not set */ +#define VNOFUNC 0x40 /* don't call the callback function */ +#define VNOSET 0x80 /* do not set variable - just readonly test */ +#define VNOSAVE 0x100 /* when text is on the heap before setvareq */ + + +struct var { + struct var *next; /* next entry in hash list */ + int flags; /* flags are defined above */ + const char *text; /* name=value */ + void (*func)(const char *); + /* function to be called when */ + /* the variable gets set/unset */ +}; + + +struct localvar { + struct localvar *next; /* next local variable in list */ + struct var *vp; /* the variable that was made local */ + int flags; /* saved flags */ + const char *text; /* saved text */ +}; + +struct localvar_list; + + +extern struct localvar *localvars; +extern struct var varinit[]; + +#if ATTY +#define vatty varinit[0] +#define vifs varinit[1] +#else +#define vifs varinit[0] +#endif +#define vmail (&vifs)[1] +#define vmpath (&vmail)[1] +#define vpath (&vmpath)[1] +#define vps1 (&vpath)[1] +#define vps2 (&vps1)[1] +#define vps4 (&vps2)[1] +#define vrps1 (&vps4)[1] +#define vrps2 (&vrps1)[1] +#define voptind (&vrps2)[1] +#ifdef WITH_LINENO +#define vlineno (&voptind)[1] +#endif +#ifndef SMALL +#ifdef WITH_LINENO +#define vterm (&vlineno)[1] +#else +#define vterm (&voptind)[1] +#endif +#define vhistsize (&vterm)[1] +#endif + +extern char defifsvar[]; +#define defifs (defifsvar + 4) +extern const char defpathvar[]; +#define defpath (defpathvar + 36) + +extern int lineno; +extern char linenovar[]; + +/* + * The following macros access the values of the above variables. + * They have to skip over the name. They return the null string + * for unset variables. + */ + +#define ifsval() (vifs.text + 4) +#define ifsset() ((vifs.flags & VUNSET) == 0) +#define mailval() (vmail.text + 5) +#define mpathval() (vmpath.text + 9) +#define pathval() (vpath.text + 5) +#define ps1val() (vps1.text + 4) +#define ps2val() (vps2.text + 4) +#define ps4val() (vps4.text + 4) +#define rps1val() (vrps1.text + 5) +#define rps2val() (vrps2.text + 5) +#define optindval() (voptind.text + 7) +#define linenoval() (vlineno.text + 7) +#ifndef SMALL +#define histsizeval() (vhistsize.text + 9) +#define termval() (vterm.text + 5) +#endif + +#if ATTY +#define attyset() ((vatty.flags & VUNSET) == 0) +#endif +#define mpathset() ((vmpath.flags & VUNSET) == 0) + +void initvar(void); +struct var *setvar(const char *name, const char *val, int flags); +intmax_t setvarint(const char *, intmax_t, int); +struct var *setvareq(char *s, int flags); +struct strlist; +char *lookupvar(const char *); +intmax_t lookupvarint(const char *); +char **listvars(int, int, char ***); +#define environment() listvars(VEXPORT, VUNSET, 0) +int showvars(const char *, int, int); +int exportcmd(int, char **); +int localcmd(int, char **); +void mklocal(char *name, int flags); +struct localvar_list *pushlocalvars(int push); +void unwindlocalvars(struct localvar_list *stop); +int unsetcmd(int, char **); +void unsetvar(const char *); +int varcmp(const char *, const char *); + +static inline int varequal(const char *a, const char *b) { + return !varcmp(a, b); +} + +/* + * Search the environment of a builtin command. + */ + +static inline char *bltinlookup(const char *name) +{ + return lookupvar(name); +} + + diff --git a/bin/dtch.c b/bin/dtch.c new file mode 100644 index 00000000..2aea53ae --- /dev/null +++ b/bin/dtch.c @@ -0,0 +1,271 @@ +/* Copyright (C) 2017-2019 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <poll.h> +#include <signal.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/ioctl.h> +#include <sys/socket.h> +#include <sys/stat.h> +#include <sys/un.h> +#include <sys/wait.h> +#include <sysexits.h> +#include <termios.h> +#include <unistd.h> + +#if defined __FreeBSD__ +#include <libutil.h> +#elif defined __linux__ +#include <pty.h> +#else +#include <util.h> +#endif + +static char _; +static struct iovec iov = { .iov_base = &_, .iov_len = 1 }; + +static ssize_t sendfd(int sock, int fd) { + size_t len = CMSG_SPACE(sizeof(int)); + char buf[len]; + struct msghdr msg = { + .msg_iov = &iov, + .msg_iovlen = 1, + .msg_control = buf, + .msg_controllen = len, + }; + + struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg); + cmsg->cmsg_len = CMSG_LEN(sizeof(int)); + cmsg->cmsg_level = SOL_SOCKET; + cmsg->cmsg_type = SCM_RIGHTS; + *(int *)CMSG_DATA(cmsg) = fd; + + return sendmsg(sock, &msg, 0); +} + +static int recvfd(int sock) { + size_t len = CMSG_SPACE(sizeof(int)); + char buf[len]; + struct msghdr msg = { + .msg_iov = &iov, + .msg_iovlen = 1, + .msg_control = buf, + .msg_controllen = len, + }; + if (0 > recvmsg(sock, &msg, 0)) return -1; + + struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg); + if (!cmsg || cmsg->cmsg_type != SCM_RIGHTS) { + errno = ENOMSG; + return -1; + } + return *(int *)CMSG_DATA(cmsg); +} + +static struct sockaddr_un addr = { .sun_family = AF_UNIX }; + +static void handler(int sig) { + unlink(addr.sun_path); + _exit(-sig); +} + +static void detach(int server, bool sink, char *argv[]) { + int pty; + pid_t pid = forkpty(&pty, NULL, NULL, NULL); + if (pid < 0) err(EX_OSERR, "forkpty"); + + if (!pid) { + execvp(argv[0], argv); + err(EX_NOINPUT, "%s", argv[0]); + } + + signal(SIGINT, handler); + signal(SIGTERM, handler); + + int error = listen(server, 0); + if (error) err(EX_OSERR, "listen"); + + struct pollfd fds[] = { + { .events = POLLIN, .fd = server }, + { .events = POLLIN, .fd = pty }, + }; + while (0 < poll(fds, (sink ? 2 : 1), -1)) { + if (fds[0].revents) { + int client = accept(server, NULL, NULL); + if (client < 0) err(EX_IOERR, "accept"); + + ssize_t len = sendfd(client, pty); + if (len < 0) warn("sendfd"); + + len = recv(client, &_, sizeof(_), 0); + if (len < 0) warn("recv"); + + close(client); + } + + if (fds[1].revents) { + char buf[4096]; + ssize_t len = read(pty, buf, sizeof(buf)); + if (len < 0) err(EX_IOERR, "read"); + } + + int status; + pid_t dead = waitpid(pid, &status, WNOHANG); + if (dead < 0) err(EX_OSERR, "waitpid"); + if (dead) { + unlink(addr.sun_path); + exit(WIFEXITED(status) ? WEXITSTATUS(status) : -WTERMSIG(status)); + } + } + err(EX_IOERR, "poll"); +} + +static struct termios saveTerm; +static void restoreTerm(void) { + tcsetattr(STDIN_FILENO, TCSADRAIN, &saveTerm); + fprintf(stderr, "\33c"); // RIS + warnx("detached"); +} + +static void nop(int sig) { + (void)sig; +} + +static void attach(int client) { + int error; + + int pty = recvfd(client); + if (pty < 0) err(EX_IOERR, "recvfd"); + warnx("attached"); + + struct winsize window; + error = ioctl(STDIN_FILENO, TIOCGWINSZ, &window); + if (error) err(EX_IOERR, "ioctl"); + + struct winsize redraw = { .ws_row = 1, .ws_col = 1 }; + error = ioctl(pty, TIOCSWINSZ, &redraw); + if (error) err(EX_IOERR, "ioctl"); + + error = ioctl(pty, TIOCSWINSZ, &window); + if (error) err(EX_IOERR, "ioctl"); + + error = tcgetattr(STDIN_FILENO, &saveTerm); + if (error) err(EX_IOERR, "tcgetattr"); + atexit(restoreTerm); + + struct termios raw = saveTerm; + cfmakeraw(&raw); + error = tcsetattr(STDIN_FILENO, TCSADRAIN, &raw); + if (error) err(EX_IOERR, "tcsetattr"); + + signal(SIGWINCH, nop); + + char buf[4096]; + struct pollfd fds[] = { + { .events = POLLIN, .fd = STDIN_FILENO }, + { .events = POLLIN, .fd = pty }, + }; + for (;;) { + int nfds = poll(fds, 2, -1); + if (nfds < 0) { + if (errno != EINTR) err(EX_IOERR, "poll"); + + error = ioctl(STDIN_FILENO, TIOCGWINSZ, &window); + if (error) err(EX_IOERR, "ioctl"); + + error = ioctl(pty, TIOCSWINSZ, &window); + if (error) err(EX_IOERR, "ioctl"); + + continue; + } + + if (fds[0].revents) { + ssize_t len = read(STDIN_FILENO, buf, sizeof(buf)); + if (len < 0) err(EX_IOERR, "read"); + if (!len) break; + + if (len == 1 && buf[0] == CTRL('Q')) break; + + len = write(pty, buf, len); + if (len < 0) err(EX_IOERR, "write"); + } + + if (fds[1].revents) { + ssize_t len = read(pty, buf, sizeof(buf)); + if (len < 0) err(EX_IOERR, "read"); + if (!len) break; + + len = write(STDOUT_FILENO, buf, len); + if (len < 0) err(EX_IOERR, "write"); + } + } +} + +int main(int argc, char *argv[]) { + int error; + + bool atch = false; + bool sink = false; + + int opt; + while (0 < (opt = getopt(argc, argv, "as"))) { + switch (opt) { + break; case 'a': atch = true; + break; case 's': sink = true; + break; default: return EX_USAGE; + } + } + if (optind == argc) errx(EX_USAGE, "no session name"); + const char *name = argv[optind++]; + + if (optind == argc) { + argv[--optind] = getenv("SHELL"); + if (!argv[optind]) errx(EX_CONFIG, "SHELL unset"); + } + + const char *home = getenv("HOME"); + if (!home) errx(EX_CONFIG, "HOME unset"); + + int fd = open(home, 0); + if (fd < 0) err(EX_CANTCREAT, "%s", home); + + error = mkdirat(fd, ".dtch", 0700); + if (error && errno != EEXIST) err(EX_CANTCREAT, "%s/.dtch", home); + + close(fd); + + int sock = socket(PF_UNIX, SOCK_STREAM, 0); + if (sock < 0) err(EX_OSERR, "socket"); + fcntl(sock, F_SETFD, FD_CLOEXEC); + + snprintf(addr.sun_path, sizeof(addr.sun_path), "%s/.dtch/%s", home, name); + + if (atch) { + error = connect(sock, (struct sockaddr *)&addr, SUN_LEN(&addr)); + if (error) err(EX_NOINPUT, "%s", addr.sun_path); + attach(sock); + } else { + error = bind(sock, (struct sockaddr *)&addr, SUN_LEN(&addr)); + if (error) err(EX_CANTCREAT, "%s", addr.sun_path); + detach(sock, sink, &argv[optind]); + } +} diff --git a/bin/ever.c b/bin/ever.c new file mode 100644 index 00000000..f983912b --- /dev/null +++ b/bin/ever.c @@ -0,0 +1,119 @@ +/* Copyright (C) 2017 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <sys/types.h> + +#include <err.h> +#include <fcntl.h> +#include <stdbool.h> +#include <stdlib.h> +#include <sys/event.h> +#include <sys/wait.h> +#include <sysexits.h> +#include <unistd.h> + +static int watch(int kq, char *path) { + int fd = open(path, O_CLOEXEC); + if (fd < 0) err(EX_NOINPUT, "%s", path); + + struct kevent event; + EV_SET( + &event, + fd, + EVFILT_VNODE, + EV_ADD | EV_CLEAR, + NOTE_WRITE | NOTE_DELETE, + 0, + path + ); + int nevents = kevent(kq, &event, 1, NULL, 0, NULL); + if (nevents < 0) err(EX_OSERR, "kevent"); + + return fd; +} + +static bool quiet; +static void exec(int fd, char *const argv[]) { + pid_t pid = fork(); + if (pid < 0) err(EX_OSERR, "fork"); + + if (!pid) { + dup2(fd, STDIN_FILENO); + execvp(*argv, argv); + err(EX_NOINPUT, "%s", *argv); + } + + int status; + pid = wait(&status); + if (pid < 0) err(EX_OSERR, "wait"); + + if (quiet) return; + if (WIFEXITED(status)) { + warnx("exit %d\n", WEXITSTATUS(status)); + } else if (WIFSIGNALED(status)) { + warnx("signal %d\n", WTERMSIG(status)); + } else { + warnx("status %d\n", status); + } +} + +int main(int argc, char *argv[]) { + bool input = false; + + for (int opt; 0 < (opt = getopt(argc, argv, "iq"));) { + switch (opt) { + break; case 'i': input = true; + break; case 'q': quiet = true; + break; default: return EX_USAGE; + } + } + argc -= optind; + argv += optind; + if (argc < 2) return EX_USAGE; + + int kq = kqueue(); + if (kq < 0) err(EX_OSERR, "kqueue"); + + int i; + for (i = 0; i < argc - 1; ++i) { + if (argv[i][0] == '-') { + i++; + break; + } + watch(kq, argv[i]); + } + + if (!input) { + exec(STDIN_FILENO, &argv[i]); + } + + for (;;) { + struct kevent event; + int nevents = kevent(kq, NULL, 0, &event, 1, NULL); + if (nevents < 0) err(EX_OSERR, "kevent"); + + if (event.fflags & NOTE_DELETE) { + close(event.ident); + sleep(1); + event.ident = watch(kq, (char *)event.udata); + } else if (input) { + off_t off = lseek(event.ident, 0, SEEK_SET); + if (off < 0) err(EX_IOERR, "lseek"); + } + + exec((input ? event.ident : STDIN_FILENO), &argv[i]); + } +} diff --git a/bin/fbatt.c b/bin/fbatt.c new file mode 100644 index 00000000..9feffe47 --- /dev/null +++ b/bin/fbatt.c @@ -0,0 +1,123 @@ +/* Copyright (C) 2018 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <dirent.h> +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <linux/fb.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <sys/ioctl.h> +#include <sys/mman.h> +#include <sysexits.h> +#include <unistd.h> + +#include "scheme.h" + +static const char *Class = "/sys/class/power_supply"; + +static const uint32_t Right = 5 * 8 + 1; // fbclock width. +static const uint32_t Width = 8; +static const uint32_t Height = 16; + +int main() { + int error; + + DIR *dir = opendir(Class); + if (!dir) err(EX_OSFILE, "%s", Class); + + FILE *chargeFull = NULL; + FILE *chargeNow = NULL; + + const struct dirent *entry; + while (NULL != (errno = 0, entry = readdir(dir))) { + if (entry->d_name[0] == '.') continue; + + error = chdir(Class); + if (error) err(EX_OSFILE, "%s", Class); + + error = chdir(entry->d_name); + if (error) err(EX_OSFILE, "%s/%s", Class, entry->d_name); + + chargeFull = fopen("charge_full", "r"); + chargeNow = fopen("charge_now", "r"); + if (chargeFull && chargeNow) break; + } + if (!chargeFull || !chargeNow) { + if (errno) err(EX_OSFILE, "%s", Class); + errx(EX_CONFIG, "%s: empty", Class); + } + closedir(dir); + + const char *path = getenv("FRAMEBUFFER"); + if (!path) path = "/dev/fb0"; + + int fb = open(path, O_RDWR); + if (fb < 0) err(EX_OSFILE, "%s", path); + + struct fb_var_screeninfo info; + error = ioctl(fb, FBIOGET_VSCREENINFO, &info); + if (error) err(EX_IOERR, "%s", path); + + size_t size = 4 * info.xres * info.yres; + uint32_t *buf = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fb, 0); + if (buf == MAP_FAILED) err(EX_IOERR, "%s", path); + + for (;;) { + int match; + + rewind(chargeFull); + fflush(chargeFull); + uint32_t full; + match = fscanf(chargeFull, "%u", &full); + if (match == EOF) err(EX_IOERR, "charge_full"); + if (match < 1) errx(EX_DATAERR, "charge_full"); + + rewind(chargeNow); + fflush(chargeNow); + uint32_t now; + match = fscanf(chargeNow, "%u", &now); + if (match == EOF) err(EX_IOERR, "charge_now"); + if (match < 1) errx(EX_DATAERR, "charge_now"); + + uint32_t percent = 100 * now / full; + uint32_t height = 16 * now / full; + + for (int i = 0; i < 60; ++i, sleep(1)) { + uint32_t left = info.xres - Right - Width; + + for (uint32_t y = 0; y <= Height; ++y) { + buf[y * info.xres + left - 1] = DarkWhite; + buf[y * info.xres + left + Width] = DarkWhite; + } + for (uint32_t x = left; x < left + Width; ++x) { + buf[Height * info.xres + x] = DarkWhite; + } + + for (uint32_t y = 0; y < Height; ++y) { + for (uint32_t x = left; x < left + Width; ++x) { + buf[y * info.xres + x] = + (Height - 1 - y > height) ? DarkBlack + : (percent <= 10) ? DarkRed + : (percent <= 30) ? DarkYellow + : LightBlack; + } + } + } + } +} diff --git a/bin/fbclock.c b/bin/fbclock.c new file mode 100644 index 00000000..ddc32db6 --- /dev/null +++ b/bin/fbclock.c @@ -0,0 +1,132 @@ +/* Copyright (C) 2018 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <assert.h> +#include <err.h> +#include <fcntl.h> +#include <linux/fb.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <sys/ioctl.h> +#include <sys/mman.h> +#include <sysexits.h> +#include <time.h> +#include <unistd.h> +#include <zlib.h> + +#include "scheme.h" + +static const uint32_t PSF2Magic = 0x864AB572; +struct PSF2Header { + uint32_t magic; + uint32_t version; + uint32_t headerSize; + uint32_t flags; + uint32_t glyphCount; + uint32_t glyphSize; + uint32_t glyphHeight; + uint32_t glyphWidth; +}; + +int main() { + size_t len; + + const char *fontPath = getenv("FONT"); + if (!fontPath) { + fontPath = "/usr/share/kbd/consolefonts/Lat2-Terminus16.psfu.gz"; + } + + gzFile font = gzopen(fontPath, "r"); + if (!font) err(EX_NOINPUT, "%s", fontPath); + + struct PSF2Header header; + len = gzfread(&header, sizeof(header), 1, font); + if (!len && gzeof(font)) errx(EX_DATAERR, "%s: missing header", fontPath); + if (!len) errx(EX_IOERR, "%s", gzerror(font, NULL)); + + if (header.magic != PSF2Magic) { + errx( + EX_DATAERR, "%s: invalid header magic %08X", + fontPath, header.magic + ); + } + if (header.headerSize != sizeof(struct PSF2Header)) { + errx( + EX_DATAERR, "%s: weird header size %d", + fontPath, header.headerSize + ); + } + + uint8_t glyphs[128][header.glyphSize]; + len = gzfread(glyphs, header.glyphSize, 128, font); + if (!len && gzeof(font)) errx(EX_DATAERR, "%s: missing glyphs", fontPath); + if (!len) errx(EX_IOERR, "%s", gzerror(font, NULL)); + + gzclose(font); + + const char *fbPath = getenv("FRAMEBUFFER"); + if (!fbPath) fbPath = "/dev/fb0"; + + int fb = open(fbPath, O_RDWR); + if (fb < 0) err(EX_OSFILE, "%s", fbPath); + + struct fb_var_screeninfo info; + int error = ioctl(fb, FBIOGET_VSCREENINFO, &info); + if (error) err(EX_IOERR, "%s", fbPath); + + size_t size = 4 * info.xres * info.yres; + uint32_t *buf = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fb, 0); + if (buf == MAP_FAILED) err(EX_IOERR, "%s", fbPath); + + for (;;) { + time_t t = time(NULL); + if (t < 0) err(EX_OSERR, "time"); + const struct tm *local = localtime(&t); + if (!local) err(EX_OSERR, "localtime"); + + char str[64]; + len = strftime(str, sizeof(str), "%H:%M", local); + assert(len); + + for (int i = 0; i < (60 - local->tm_sec); ++i, sleep(1)) { + uint32_t left = info.xres - header.glyphWidth * len; + uint32_t bottom = header.glyphHeight; + + for (uint32_t y = 0; y < bottom; ++y) { + buf[y * info.xres + left - 1] = DarkWhite; + } + for (uint32_t x = left - 1; x < info.xres; ++x) { + buf[bottom * info.xres + x] = DarkWhite; + } + + for (const char *s = str; *s; ++s) { + const uint8_t *glyph = glyphs[(unsigned)*s]; + uint32_t stride = header.glyphSize / header.glyphHeight; + for (uint32_t y = 0; y < header.glyphHeight; ++y) { + for (uint32_t x = 0; x < header.glyphWidth; ++x) { + uint8_t bits = glyph[y * stride + x / 8]; + uint8_t bit = bits >> (7 - x % 8) & 1; + buf[y * info.xres + left + x] = bit + ? DarkWhite + : DarkBlack; + } + } + left += header.glyphWidth; + } + } + } +} diff --git a/bin/freecell.c b/bin/freecell.c new file mode 100644 index 00000000..11bed1c0 --- /dev/null +++ b/bin/freecell.c @@ -0,0 +1,388 @@ +/* Copyright (C) 2019, 2021 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <assert.h> +#include <ctype.h> +#include <curses.h> +#include <err.h> +#include <locale.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <sysexits.h> +#include <time.h> +#include <unistd.h> + +typedef unsigned uint; +typedef unsigned char byte; + +typedef byte Card; +enum { + A = 1, + J = 11, + Q = 12, + K = 13, + Rank = 0x0F, + Suit = 0x30, + Color = 0x10, + Club = 0x00, + Diamond = 0x10, + Spade = 0x20, + Heart = 0x30, +}; + +enum { StackCap = 52 }; +struct Stack { + byte len; + Card cards[StackCap]; +}; +static void push(struct Stack *stack, Card card) { + assert(stack->len < StackCap); + stack->cards[stack->len++] = card; +} +static Card pop(struct Stack *stack) { + if (!stack->len) return 0; + return stack->cards[--stack->len]; +} +static Card peek(struct Stack *stack) { + if (!stack->len) return 0; + return stack->cards[stack->len-1]; +} + +enum { + Foundation, + Cell = Foundation + 4, + Tableau = Cell + 4, + Stacks = Tableau + 8, +}; +static struct Stack stacks[Stacks]; + +struct Move { + byte dst; + byte src; +}; + +enum { QCap = 16 }; +static struct { + struct Move moves[QCap]; + uint r, w, u; +} q; +static void enq(byte dst, byte src) { + q.moves[q.w % QCap].dst = dst; + q.moves[q.w % QCap].src = src; + q.w++; +} +static void deq(void) { + struct Move move = q.moves[q.r++ % QCap]; + push(&stacks[move.dst], pop(&stacks[move.src])); +} +static void undo(void) { + uint len = q.w - q.u; + if (!len || len > QCap) return; + for (uint i = len-1; i < len; --i) { + struct Move move = q.moves[(q.u+i) % QCap]; + push(&stacks[move.src], pop(&stacks[move.dst])); + } + q.r = q.w = q.u; +} + +// https://rosettacode.org/wiki/Deal_cards_for_FreeCell +static uint lcgState; +static uint lcg(void) { + lcgState = (214013 * lcgState + 2531011) % (1 << 31); + return lcgState >> 16; +} +static void deal(uint game) { + lcgState = game; + struct Stack deck = {0}; + for (Card i = A; i <= K; ++i) { + push(&deck, Club | i); + push(&deck, Diamond | i); + push(&deck, Heart | i); + push(&deck, Spade | i); + } + for (uint stack = 0; deck.len; ++stack) { + uint i = lcg() % deck.len; + Card card = deck.cards[i]; + deck.cards[i] = deck.cards[--deck.len]; + push(&stacks[Tableau + stack%8], card); + } +} + +static bool win(void) { + for (uint i = Foundation; i < Cell; ++i) { + if (stacks[i].len != 13) return false; + } + return true; +} + +static bool valid(uint dst, Card card) { + Card top = peek(&stacks[dst]); + if (dst < Cell) { + if (!top) return (card & Rank) == A; + return (card & Suit) == (top & Suit) + && (card & Rank) == (top & Rank) + 1; + } + if (!top) return true; + if (dst >= Tableau) { + return (card & Color) != (top & Color) + && (card & Rank) == (top & Rank) - 1; + } + return false; +} + +static void autoEnq(void) { + Card min[] = { K, K }; + for (uint i = Cell; i < Stacks; ++i) { + for (uint j = 0; j < stacks[i].len; ++j) { + Card card = stacks[i].cards[j]; + if ((card & Rank) < min[!!(card & Color)]) { + min[!!(card & Color)] = card & Rank; + } + } + } + for (uint src = Cell; src < Stacks; ++src) { + Card card = peek(&stacks[src]); + if (!card) continue; + if (min[!(card & Color)] < (card & Rank)-1) continue; + for (uint dst = Foundation; dst < Cell; ++dst) { + if (valid(dst, card)) { + enq(dst, src); + return; + } + } + } +} + +static void moveSingle(uint dst, uint src) { + if (!valid(dst, peek(&stacks[src]))) return; + q.u = q.w; + enq(dst, src); +} + +static uint freeCells(uint cells[static 4]) { + uint len = 0; + for (uint i = Cell; i < Tableau; ++i) { + if (!stacks[i].len) cells[len++] = i; + } + return len; +} + +static uint moveDepth(uint src) { + struct Stack stack = stacks[src]; + if (stack.len < 2) return stack.len; + uint n = 1; + for (uint i = stack.len-2; i < stack.len; --i, ++n) { + if ((stack.cards[i] & Color) == (stack.cards[i+1] & Color)) break; + if ((stack.cards[i] & Rank) != (stack.cards[i+1] & Rank) + 1) break; + } + return n; +} + +static void moveColumn(uint dst, uint src) { + uint depth; + uint cells[4]; + uint free = freeCells(cells); + for (depth = moveDepth(src); depth; --depth) { + if (free < depth-1) continue; + if (valid(dst, stacks[src].cards[stacks[src].len-depth])) break; + } + if (depth < 2 || dst < Tableau) { + moveSingle(dst, src); + return; + } + q.u = q.w; + for (uint i = 0; i < depth-1; ++i) { + enq(cells[i], src); + } + enq(dst, src); + for (uint i = depth-2; i < depth-1; --i) { + enq(dst, cells[i]); + } +} + +static void curse(void) { + setlocale(LC_CTYPE, ""); + initscr(); + cbreak(); + noecho(); + curs_set(0); + start_color(); + use_default_colors(); + init_pair(1, COLOR_BLACK, COLOR_WHITE); + init_pair(2, COLOR_RED, COLOR_WHITE); + init_pair(3, COLOR_GREEN, -1); +} + +static void drawCard(bool hi, int y, int x, Card card) { + if (!card) return; + move(y, x); + attr_set(hi ? A_REVERSE : A_NORMAL, (card & Color) ? 2 : 1, NULL); + switch (card & Suit) { + break; case Club: addstr("\u2663"); + break; case Diamond: addstr("\u2666"); + break; case Spade: addstr("\u2660"); + break; case Heart: addstr("\u2665"); + break; default:; + } + switch (card & Rank) { + break; case A: addstr(" A"); + break; case 10: addstr("10"); + break; case J: addstr(" J"); + break; case Q: addstr(" Q"); + break; case K: addstr(" K"); + break; default: { + addch(' '); + addch('0' + (card & Rank)); + } + } + attr_set(A_NORMAL, 0, NULL); +} + +static void drawStack(bool hi, int y, int x, const struct Stack *stack) { + for (uint i = 0; i < stack->len; ++i) { + drawCard(hi && i == stack->len-1, y++, x, stack->cards[i]); + } +} + +enum { + Padding = 1, + CardWidth = 3, + CardHeight = 1, + CellX = Padding, + CellY = 2*CardHeight, + FoundationX = CellX + 4*(CardWidth+Padding), + FoundationY = CellY, + TableauX = CellX, + TableauY = CellY + 2*CardHeight, +}; + +static uint game; +static uint srcStack = Stacks; + +static void draw(void) { + erase(); + static char buf[256]; + if (!buf[0]) snprintf(buf, sizeof(buf), "Game #%u", game); + attr_set(A_NORMAL, 3, NULL); + mvaddstr(0, Padding, buf); + for (uint i = 0; i < Stacks; ++i) { + int y, x; + char key; + if (i < Cell) { + y = FoundationY; + x = FoundationX + (3-(i-Foundation)) * (CardWidth+Padding); + key = '_'; + } else if (i < Tableau) { + y = CellY; + x = CellX + (i-Cell) * (CardWidth+Padding); + key = '1' + i-Cell; + } else { + y = TableauY; + x = TableauX + (i-Tableau) * (CardWidth+Padding); + key = "QWERASDF"[i-Tableau]; + } + if (i < Tableau) { + mvaddch(y, x+1, COLOR_PAIR(3) | key); + } else { + mvaddch(y + 8*CardHeight, x+1, COLOR_PAIR(3) | key); + } + if (i < Cell) { + drawCard(false, y, x, peek(&stacks[i])); + } else { + drawStack(i == srcStack, y, x, &stacks[i]); + } + } +} + +static void input(void) { + char ch = getch(); + uint stack = Stacks; + switch (tolower(ch)) { + break; case '\33': srcStack = Stacks; + break; case 'u': case '\b': case '\177': undo(); + break; case '1': case '!': stack = Cell+0; + break; case '2': case '@': stack = Cell+1; + break; case '3': case '#': stack = Cell+2; + break; case '4': case '$': stack = Cell+3; + break; case '_': case ' ': stack = Foundation; + break; case 'q': stack = Tableau+0; + break; case 'w': stack = Tableau+1; + break; case 'e': stack = Tableau+2; + break; case 'r': stack = Tableau+3; + break; case 'a': stack = Tableau+4; + break; case 's': stack = Tableau+5; + break; case 'd': stack = Tableau+6; + break; case 'f': stack = Tableau+7; + } + if (stack == Stacks) return; + + if (srcStack < Stacks) { + Card card = peek(&stacks[srcStack]); + if (stack == Foundation) { + for (; stack < Cell; ++stack) { + if (valid(stack, card)) break; + } + if (stack == Cell) return; + } + if (stack == srcStack) { + for (stack = Cell; stack < Stacks; ++stack) { + if (!stacks[stack].len) break; + } + if (stack == Stacks) return; + } + if (isupper(ch)) { + moveSingle(stack, srcStack); + } else { + moveColumn(stack, srcStack); + } + srcStack = Stacks; + + } else if (stack >= Cell && stacks[stack].len) { + srcStack = stack; + } +} + +static void status(void) { + printf("Game #%u %s!\n", game, win() ? "win" : "lose"); +} + +int main(int argc, char *argv[]) { + game = 1 + time(NULL) % 32000; + uint delay = 50; + for (int opt; 0 < (opt = getopt(argc, argv, "d:n:"));) { + switch (opt) { + break; case 'd': delay = strtoul(optarg, NULL, 10); + break; case 'n': game = strtoul(optarg, NULL, 10); + break; default: return EX_USAGE; + } + } + curse(); + deal(game); + atexit(status); + while (!win()) { + while (q.r < q.w) { + deq(); + draw(); + refresh(); + usleep(delay * 1000); + if (q.r == q.w) autoEnq(); + } + draw(); + input(); + } + endwin(); +} diff --git a/bin/glitch.c b/bin/glitch.c new file mode 100644 index 00000000..9747f35a --- /dev/null +++ b/bin/glitch.c @@ -0,0 +1,538 @@ +/* Copyright (C) 2018 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <arpa/inet.h> +#include <err.h> +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sysexits.h> +#include <unistd.h> +#include <zlib.h> + +#define PACKED __attribute__((packed)) + +#define CRC_INIT (crc32(0, Z_NULL, 0)) + +static const char *path; +static FILE *file; +static uint32_t crc; + +static void readExpect(void *ptr, size_t size, const char *expect) { + fread(ptr, size, 1, file); + if (ferror(file)) err(EX_IOERR, "%s", path); + if (feof(file)) errx(EX_DATAERR, "%s: missing %s", path, expect); + crc = crc32(crc, ptr, size); +} + +static void writeExpect(const void *ptr, size_t size) { + fwrite(ptr, size, 1, file); + if (ferror(file)) err(EX_IOERR, "%s", path); + crc = crc32(crc, ptr, size); +} + +static const uint8_t Signature[8] = "\x89PNG\r\n\x1A\n"; + +static void readSignature(void) { + uint8_t signature[8]; + readExpect(signature, 8, "signature"); + if (0 != memcmp(signature, Signature, 8)) { + errx(EX_DATAERR, "%s: invalid signature", path); + } +} + +static void writeSignature(void) { + writeExpect(Signature, sizeof(Signature)); +} + +struct PACKED Chunk { + uint32_t size; + char type[4]; +}; + +static const char *typeStr(struct Chunk chunk) { + static char buf[5]; + memcpy(buf, chunk.type, 4); + return buf; +} + +static struct Chunk readChunk(void) { + struct Chunk chunk; + readExpect(&chunk, sizeof(chunk), "chunk"); + chunk.size = ntohl(chunk.size); + crc = crc32(CRC_INIT, (Byte *)chunk.type, sizeof(chunk.type)); + return chunk; +} + +static void writeChunk(struct Chunk chunk) { + chunk.size = htonl(chunk.size); + writeExpect(&chunk, sizeof(chunk)); + crc = crc32(CRC_INIT, (Byte *)chunk.type, sizeof(chunk.type)); +} + +static void readCrc(void) { + uint32_t expected = crc; + uint32_t found; + readExpect(&found, sizeof(found), "CRC32"); + found = ntohl(found); + if (found != expected) { + errx( + EX_DATAERR, "%s: expected CRC32 %08X, found %08X", + path, expected, found + ); + } +} + +static void writeCrc(void) { + uint32_t net = htonl(crc); + writeExpect(&net, sizeof(net)); +} + +static void skipChunk(struct Chunk chunk) { + uint8_t discard[chunk.size]; + readExpect(discard, sizeof(discard), "chunk data"); + readCrc(); +} + +static struct PACKED { + uint32_t width; + uint32_t height; + uint8_t depth; + enum PACKED { + Grayscale = 0, + Truecolor = 2, + Indexed = 3, + GrayscaleAlpha = 4, + TruecolorAlpha = 6, + } color; + uint8_t compression; + uint8_t filter; + uint8_t interlace; +} header; +_Static_assert(13 == sizeof(header), "header size"); + +static size_t pixelBits(void) { + switch (header.color) { + case Grayscale: return 1 * header.depth; + case Truecolor: return 3 * header.depth; + case Indexed: return 1 * header.depth; + case GrayscaleAlpha: return 2 * header.depth; + case TruecolorAlpha: return 4 * header.depth; + default: abort(); + } +} + +static size_t pixelSize(void) { + return (pixelBits() + 7) / 8; +} + +static size_t lineSize(void) { + return (header.width * pixelBits() + 7) / 8; +} + +static size_t dataSize(void) { + return (1 + lineSize()) * header.height; +} + +static void readHeader(void) { + struct Chunk ihdr = readChunk(); + if (0 != memcmp(ihdr.type, "IHDR", 4)) { + errx(EX_DATAERR, "%s: expected IHDR, found %s", path, typeStr(ihdr)); + } + if (ihdr.size != sizeof(header)) { + errx( + EX_DATAERR, "%s: expected IHDR size %zu, found %u", + path, sizeof(header), ihdr.size + ); + } + readExpect(&header, sizeof(header), "header"); + readCrc(); + header.width = ntohl(header.width); + header.height = ntohl(header.height); + if (!header.width) errx(EX_DATAERR, "%s: invalid width 0", path); + if (!header.height) errx(EX_DATAERR, "%s: invalid height 0", path); +} + +static void writeHeader(void) { + struct Chunk ihdr = { .size = sizeof(header), .type = "IHDR" }; + writeChunk(ihdr); + header.width = htonl(header.width); + header.height = htonl(header.height); + writeExpect(&header, sizeof(header)); + writeCrc(); + header.width = ntohl(header.width); + header.height = ntohl(header.height); +} + +static struct { + uint32_t len; + uint8_t entries[256][3]; +} palette; + +static void readPalette(void) { + struct Chunk chunk; + for (;;) { + chunk = readChunk(); + if (0 == memcmp(chunk.type, "PLTE", 4)) break; + skipChunk(chunk); + } + palette.len = chunk.size / 3; + readExpect(palette.entries, chunk.size, "palette data"); + readCrc(); +} + +static void writePalette(void) { + struct Chunk plte = { .size = 3 * palette.len, .type = "PLTE" }; + writeChunk(plte); + writeExpect(palette.entries, plte.size); + writeCrc(); +} + +static uint8_t *data; + +static void readData(void) { + data = malloc(dataSize()); + if (!data) err(EX_OSERR, "malloc(%zu)", dataSize()); + + struct z_stream_s stream = { .next_out = data, .avail_out = dataSize() }; + int error = inflateInit(&stream); + if (error != Z_OK) errx(EX_SOFTWARE, "%s: inflateInit: %s", path, stream.msg); + + for (;;) { + struct Chunk chunk = readChunk(); + if (0 == memcmp(chunk.type, "IDAT", 4)) { + uint8_t *idat = malloc(chunk.size); + if (!idat) err(EX_OSERR, "malloc"); + + readExpect(idat, chunk.size, "image data"); + readCrc(); + + stream.next_in = idat; + stream.avail_in = chunk.size; + int error = inflate(&stream, Z_SYNC_FLUSH); + free(idat); + + if (error == Z_STREAM_END) break; + if (error != Z_OK) errx(EX_DATAERR, "%s: inflate: %s", path, stream.msg); + + } else if (0 == memcmp(chunk.type, "IEND", 4)) { + errx(EX_DATAERR, "%s: missing IDAT chunk", path); + } else { + skipChunk(chunk); + } + } + + inflateEnd(&stream); + if ((size_t)stream.total_out != dataSize()) { + errx( + EX_DATAERR, "%s: expected data size %zu, found %zu", + path, dataSize(), (size_t)stream.total_out + ); + } +} + +static void writeData(void) { + uLong size = compressBound(dataSize()); + uint8_t *deflate = malloc(size); + if (!deflate) err(EX_OSERR, "malloc"); + + int error = compress2(deflate, &size, data, dataSize(), Z_BEST_SPEED); + if (error != Z_OK) errx(EX_SOFTWARE, "%s: compress2: %d", path, error); + + struct Chunk idat = { .size = size, .type = "IDAT" }; + writeChunk(idat); + writeExpect(deflate, size); + writeCrc(); + + free(deflate); +} + +static void writeEnd(void) { + struct Chunk iend = { .size = 0, .type = "IEND" }; + writeChunk(iend); + writeCrc(); +} + +enum PACKED Filter { + None, + Sub, + Up, + Average, + Paeth, + FilterCount, +}; + +static struct { + bool brokenPaeth; + bool filt; + bool recon; + uint8_t declareFilter; + uint8_t applyFilter; + enum Filter declareFilters[255]; + enum Filter applyFilters[255]; + bool invert; + bool mirror; + bool zeroX; + bool zeroY; +} options; + +struct Bytes { + uint8_t x; + uint8_t a; + uint8_t b; + uint8_t c; +}; + +static uint8_t paethPredictor(struct Bytes f) { + int32_t p = (int32_t)f.a + (int32_t)f.b - (int32_t)f.c; + int32_t pa = abs(p - (int32_t)f.a); + int32_t pb = abs(p - (int32_t)f.b); + int32_t pc = abs(p - (int32_t)f.c); + if (pa <= pb && pa <= pc) return f.a; + if (options.brokenPaeth) { + if (pb < pc) return f.b; + } else { + if (pb <= pc) return f.b; + } + return f.c; +} + +static uint8_t recon(enum Filter type, struct Bytes f) { + switch (type) { + case None: return f.x; + case Sub: return f.x + f.a; + case Up: return f.x + f.b; + case Average: return f.x + ((uint32_t)f.a + (uint32_t)f.b) / 2; + case Paeth: return f.x + paethPredictor(f); + default: abort(); + } +} + +static uint8_t filt(enum Filter type, struct Bytes f) { + switch (type) { + case None: return f.x; + case Sub: return f.x - f.a; + case Up: return f.x - f.b; + case Average: return f.x - ((uint32_t)f.a + (uint32_t)f.b) / 2; + case Paeth: return f.x - paethPredictor(f); + default: abort(); + } +} + +static struct Line { + enum Filter type; + uint8_t data[]; +} **lines; + +static void scanlines(void) { + lines = calloc(header.height, sizeof(*lines)); + if (!lines) err(EX_OSERR, "calloc(%u, %zu)", header.height, sizeof(*lines)); + + size_t stride = 1 + lineSize(); + for (uint32_t y = 0; y < header.height; ++y) { + lines[y] = (struct Line *)&data[y * stride]; + if (lines[y]->type >= FilterCount) { + errx(EX_DATAERR, "%s: invalid filter type %hhu", path, lines[y]->type); + } + } +} + +static struct Bytes origBytes(uint32_t y, size_t i) { + bool a = (i >= pixelSize()), b = (y > 0), c = (a && b); + return (struct Bytes) { + .x = lines[y]->data[i], + .a = a ? lines[y]->data[i - pixelSize()] : 0, + .b = b ? lines[y - 1]->data[i] : 0, + .c = c ? lines[y - 1]->data[i - pixelSize()] : 0, + }; +} + +static void reconData(void) { + for (uint32_t y = 0; y < header.height; ++y) { + for (size_t i = 0; i < lineSize(); ++i) { + if (options.filt) { + lines[y]->data[i] = filt(lines[y]->type, origBytes(y, i)); + } else { + lines[y]->data[i] = recon(lines[y]->type, origBytes(y, i)); + } + } + lines[y]->type = None; + } +} + +static void filterData(void) { + for (uint32_t y = header.height - 1; y < header.height; --y) { + uint8_t filter[FilterCount][lineSize()]; + uint32_t heuristic[FilterCount] = {0}; + enum Filter minType = None; + for (enum Filter type = None; type < FilterCount; ++type) { + for (size_t i = 0; i < lineSize(); ++i) { + if (options.recon) { + filter[type][i] = recon(type, origBytes(y, i)); + } else { + filter[type][i] = filt(type, origBytes(y, i)); + } + heuristic[type] += abs((int8_t)filter[type][i]); + } + if (heuristic[type] < heuristic[minType]) minType = type; + } + + if (options.declareFilter) { + lines[y]->type = options.declareFilters[y % options.declareFilter]; + } else { + lines[y]->type = minType; + } + + if (options.applyFilter) { + enum Filter type = options.applyFilters[y % options.applyFilter]; + memcpy(lines[y]->data, filter[type], lineSize()); + } else { + memcpy(lines[y]->data, filter[minType], lineSize()); + } + } +} + +static void invert(void) { + for (uint32_t y = 0; y < header.height; ++y) { + for (size_t i = 0; i < lineSize(); ++i) { + lines[y]->data[i] ^= 0xFF; + } + } +} + +static void mirror(void) { + for (uint32_t y = 0; y < header.height; ++y) { + for (size_t i = 0, j = lineSize() - 1; i < j; ++i, --j) { + uint8_t t = lines[y]->data[i]; + lines[y]->data[i] = lines[y]->data[j]; + lines[y]->data[j] = t; + } + } +} + +static void zeroX(void) { + for (uint32_t y = 0; y < header.height; ++y) { + memset(lines[y]->data, 0, pixelSize()); + } +} + +static void zeroY(void) { + memset(lines[0]->data, 0, lineSize()); +} + +static void glitch(const char *inPath, const char *outPath) { + if (inPath) { + path = inPath; + file = fopen(path, "r"); + if (!file) err(EX_NOINPUT, "%s", path); + } else { + path = "(stdin)"; + file = stdin; + } + + readSignature(); + readHeader(); + if (header.color == Indexed) readPalette(); + readData(); + fclose(file); + + scanlines(); + reconData(); + filterData(); + if (options.invert) invert(); + if (options.mirror) mirror(); + if (options.zeroX) zeroX(); + if (options.zeroY) zeroY(); + free(lines); + + if (outPath) { + path = outPath; + file = fopen(path, "w"); + if (!file) err(EX_CANTCREAT, "%s", path); + } else { + path = "(stdout)"; + file = stdout; + } + + writeSignature(); + writeHeader(); + if (header.color == Indexed) writePalette(); + writeData(); + writeEnd(); + free(data); + + int error = fclose(file); + if (error) err(EX_IOERR, "%s", path); +} + +static enum Filter parseFilter(const char *s) { + switch (s[0]) { + case 'N': case 'n': return None; + case 'S': case 's': return Sub; + case 'U': case 'u': return Up; + case 'A': case 'a': return Average; + case 'P': case 'p': return Paeth; + default: errx(EX_USAGE, "invalid filter type %s", s); + } +} + +static uint8_t parseFilters(enum Filter *filters, const char *s) { + uint8_t len = 0; + do { + filters[len++] = parseFilter(s); + s = strchr(s, ','); + } while (s++); + return len; +} + +int main(int argc, char *argv[]) { + bool stdio = false; + char *output = NULL; + + int opt; + while (0 < (opt = getopt(argc, argv, "a:cd:fimo:prxy"))) { + switch (opt) { + break; case 'a': + options.applyFilter = parseFilters(options.applyFilters, optarg); + break; case 'c': stdio = true; + break; case 'd': + options.declareFilter = parseFilters(options.declareFilters, optarg); + break; case 'f': options.filt = true; + break; case 'i': options.invert = true; + break; case 'm': options.mirror = true; + break; case 'o': output = optarg; + break; case 'p': options.brokenPaeth = true; + break; case 'r': options.recon = true; + break; case 'x': options.zeroX = true; + break; case 'y': options.zeroY = true; + break; default: return EX_USAGE; + } + } + + if (argc - optind == 1 && (output || stdio)) { + glitch(argv[optind], output); + } else if (optind < argc) { + for (int i = optind; i < argc; ++i) { + glitch(argv[i], argv[i]); + } + } else { + glitch(NULL, output); + } + + return EX_OK; +} diff --git a/bin/hilex.c b/bin/hilex.c new file mode 100644 index 00000000..91a5e889 --- /dev/null +++ b/bin/hilex.c @@ -0,0 +1,391 @@ +/* Copyright (C) 2020 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <assert.h> +#include <ctype.h> +#include <err.h> +#include <regex.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/wait.h> +#include <sysexits.h> +#include <unistd.h> + +#include "hilex.h" + +#define ARRAY_LEN(a) (sizeof(a) / sizeof(a[0])) + +static const char *Class[] = { +#define X(class) [class] = #class, + ENUM_CLASS +#undef X +}; + +static FILE *yyin; +static char *yytext; +static int yylex(void) { + static size_t cap = 0; + return (getline(&yytext, &cap, yyin) < 0 ? None : Normal); +} +static const struct Lexer LexText = { yylex, &yyin, &yytext }; + +static const struct { + const struct Lexer *lexer; + const char *name; + const char *namePatt; + const char *linePatt; +} Lexers[] = { + { &LexC, "c", "[.][chlmy]$", NULL }, + { &LexMake, "make", "[.](mk|am)$|^Makefile$", NULL }, + { &LexMdoc, "mdoc", "[.][1-9]$", "^[.]Dd" }, + { &LexSh, "sh", "[.]sh$|^[.](profile|shrc)$", "^#![ ]?/bin/sh" }, + { &LexText, "text", "[.]txt$", NULL }, +}; + +static const struct Lexer *parseLexer(const char *name) { + for (size_t i = 0; i < ARRAY_LEN(Lexers); ++i) { + if (!strcmp(name, Lexers[i].name)) return Lexers[i].lexer; + } + errx(EX_USAGE, "unknown lexer %s", name); +} + +static void ungets(const char *str, FILE *file) { + size_t len = strlen(str); + for (size_t i = len-1; i < len; --i) { + int ch = ungetc(str[i], file); + if (ch == EOF) errx(EX_IOERR, "cannot push back string"); + } +} + +static const struct Lexer *matchLexer(const char *name, FILE *file) { + char buf[256]; + regex_t regex; + for (size_t i = 0; i < ARRAY_LEN(Lexers); ++i) { + int error = regcomp( + ®ex, Lexers[i].namePatt, REG_EXTENDED | REG_NOSUB + ); + assert(!error); + error = regexec(®ex, name, 0, NULL, 0); + regfree(®ex); + if (!error) return Lexers[i].lexer; + } + char *line = fgets(buf, sizeof(buf), file); + if (!line) return NULL; + for (size_t i = 0; i < ARRAY_LEN(Lexers); ++i) { + if (!Lexers[i].linePatt) continue; + int error = regcomp( + ®ex, Lexers[i].linePatt, REG_EXTENDED | REG_NOSUB + ); + assert(!error); + error = regexec(®ex, line, 0, NULL, 0); + regfree(®ex); + if (!error) { + ungets(line, file); + return Lexers[i].lexer; + } + } + ungets(line, file); + return NULL; +} + +#define ENUM_OPTION \ + X(Document, "document") \ + X(Inline, "inline") \ + X(Monospace, "monospace") \ + X(Pre, "pre") \ + X(Style, "style") \ + X(Tab, "tab") \ + X(Title, "title") + +enum Option { +#define X(option, key) option, + ENUM_OPTION +#undef X + OptionCap, +}; + +typedef void Header(const char *opts[]); +typedef void Output(const char *opts[], enum Class class, const char *text); + +static bool pager; +static void ansiHeader(const char *opts[]) { + (void)opts; + if (!pager) return; + const char *shell = getenv("SHELL"); + const char *pager = getenv("PAGER"); + if (!shell) shell = "/bin/sh"; + if (!pager) pager = "less"; + setenv("LESS", "FRX", 0); + + int rw[2]; + int error = pipe(rw); + if (error) err(EX_OSERR, "pipe"); + + pid_t pid = fork(); + if (pid < 0) err(EX_OSERR, "fork"); + if (!pid) { + dup2(rw[0], STDIN_FILENO); + close(rw[0]); + close(rw[1]); + execl(shell, shell, "-c", pager, NULL); + err(EX_CONFIG, "%s", shell); + } + dup2(rw[1], STDOUT_FILENO); + close(rw[0]); + close(rw[1]); + setlinebuf(stdout); +} + +static void ansiFooter(const char *opts[]) { + (void)opts; + if (!pager) return; + int status; + fclose(stdout); + wait(&status); +} + +static const char *SGR[ClassCap] = { + [Keyword] = "37", + [Macro] = "32", + [Comment] = "34", + [String] = "36", + [Format] = "36;1;96", + [Subst] = "33", +}; + +static void ansiFormat(const char *opts[], enum Class class, const char *text) { + (void)opts; + if (!SGR[class]) { + printf("%s", text); + return; + } + // Set color on each line for piping to less -R: + for (const char *nl; (nl = strchr(text, '\n')); text = &nl[1]) { + printf("\33[%sm%.*s\33[m\n", SGR[class], (int)(nl - text), text); + } + if (*text) printf("\33[%sm%s\33[m", SGR[class], text); +} + +static void +debugFormat(const char *opts[], enum Class class, const char *text) { + if (class != Normal) { + printf("%s(", Class[class]); + ansiFormat(opts, class, text); + printf(")"); + } else { + printf("%s", text); + } +} + +static const char *IRC[ClassCap] = { + [Keyword] = "\00315", + [Macro] = "\0033", + [Comment] = "\0032", + [String] = "\00310", + [Format] = "\00311", + [Subst] = "\0037", +}; + +static void ircHeader(const char *opts[]) { + if (opts[Monospace]) printf("\21"); +} + +static const char *stop(const char *text) { + return (*text == ',' || isdigit(*text) ? "\2\2" : ""); +} + +static void ircFormat(const char *opts[], enum Class class, const char *text) { + for (const char *nl; (nl = strchr(text, '\n')); text = &nl[1]) { + if (IRC[class]) printf("%s%s", IRC[class], stop(text)); + printf("%.*s\n", (int)(nl - text), text); + if (opts[Monospace]) printf("\21"); + } + if (*text) { + if (IRC[class]) { + printf("%s%s%s\17", IRC[class], stop(text), text); + if (opts[Monospace]) printf("\21"); + } else { + printf("%s", text); + } + } +} + +static void htmlEscape(const char *text) { + while (*text) { + switch (*text) { + break; case '"': text++; printf("""); + break; case '&': text++; printf("&"); + break; case '<': text++; printf("<"); + } + size_t len = strcspn(text, "\"&<"); + if (len) fwrite(text, len, 1, stdout); + text += len; + } +} + +static const char *Styles[ClassCap] = { + [Keyword] = "color: dimgray;", + [Macro] = "color: green;", + [Comment] = "color: navy;", + [String] = "color: teal;", + [Format] = "color: teal; font-weight: bold;", + [Subst] = "color: olive;", +}; + +static void styleTabSize(const char *tab) { + printf("-moz-tab-size: "); + htmlEscape(tab); + printf("; tab-size: "); + htmlEscape(tab); + printf(";"); +} + +static void htmlHeader(const char *opts[]) { + if (!opts[Document]) goto body; + + printf("<!DOCTYPE html>\n<title>"); + if (opts[Title]) htmlEscape(opts[Title]); + printf("</title>\n"); + + if (opts[Style]) { + printf("<link rel=\"stylesheet\" href=\""); + htmlEscape(opts[Style]); + printf("\">\n"); + } else if (!opts[Inline]) { + printf("<style>\n"); + if (opts[Tab]) { + printf("pre.hilex { "); + styleTabSize(opts[Tab]); + printf(" }\n"); + } + for (enum Class class = 0; class < ClassCap; ++class) { + if (!Styles[class]) continue; + printf("pre.hilex .%.2s { %s }\n", Class[class], Styles[class]); + } + printf("</style>\n"); + } + +body: + if ((opts[Document] || opts[Pre]) && opts[Inline] && opts[Tab]) { + printf("<pre class=\"hilex\" style=\""); + styleTabSize(opts[Tab]); + printf("\">"); + } else if (opts[Document] || opts[Pre]) { + printf("<pre class=\"hilex\">"); + } +} + +static void htmlFooter(const char *opts[]) { + if (opts[Document] || opts[Pre]) printf("</pre>"); + if (opts[Document]) printf("\n"); +} + +static void htmlFormat(const char *opts[], enum Class class, const char *text) { + if (class != Normal) { + if (opts[Inline]) { + printf("<span style=\"%s\">", Styles[class] ? Styles[class] : ""); + } else { + printf("<span class=\"%.2s\">", Class[class]); + } + htmlEscape(text); + printf("</span>"); + } else { + htmlEscape(text); + } +} + +static const struct Formatter { + const char *name; + Header *header; + Output *format; + Header *footer; +} Formatters[] = { + { "ansi", ansiHeader, ansiFormat, ansiFooter }, + { "debug", NULL, debugFormat, NULL }, + { "html", htmlHeader, htmlFormat, htmlFooter }, + { "irc", ircHeader, ircFormat, NULL }, +}; + +static const struct Formatter *parseFormatter(const char *name) { + for (size_t i = 0; i < ARRAY_LEN(Formatters); ++i) { + if (!strcmp(name, Formatters[i].name)) return &Formatters[i]; + } + errx(EX_USAGE, "unknown formatter %s", name); +} + +static char *const OptionKeys[OptionCap + 1] = { +#define X(option, key) [option] = key, + ENUM_OPTION +#undef X + NULL, +}; + +int main(int argc, char *argv[]) { + bool text = false; + const char *name = NULL; + const struct Lexer *lexer = NULL; + const struct Formatter *formatter = &Formatters[0]; + const char *opts[OptionCap] = {0}; + + for (int opt; 0 < (opt = getopt(argc, argv, "f:l:n:o:t"));) { + switch (opt) { + break; case 'f': formatter = parseFormatter(optarg); + break; case 'l': lexer = parseLexer(optarg); + break; case 'n': name = optarg; + break; case 'o': { + while (*optarg) { + char *val; + int key = getsubopt(&optarg, OptionKeys, &val); + if (key < 0) errx(EX_USAGE, "no such option %s", val); + opts[key] = (val ? val : ""); + } + } + break; case 't': text = true; + break; default: return EX_USAGE; + } + } + + const char *path = "(stdin)"; + FILE *file = stdin; + if (optind < argc) { + path = argv[optind]; + file = fopen(path, "r"); + if (!file) err(EX_NOINPUT, "%s", path); + pager = isatty(STDOUT_FILENO); + } + + if (!name) { + if (NULL != (name = strrchr(path, '/'))) { + name++; + } else { + name = path; + } + } + if (!opts[Title]) opts[Title] = name; + if (!lexer) lexer = matchLexer(name, file); + if (!lexer && text) lexer = &LexText; + if (!lexer) errx(EX_USAGE, "cannot infer lexer for %s", name); + + *lexer->in = file; + if (formatter->header) formatter->header(opts); + for (enum Class class; None != (class = lexer->lex());) { + assert(class < ClassCap); + formatter->format(opts, class, *lexer->text); + } + if (formatter->footer) formatter->footer(opts); +} diff --git a/bin/hilex.h b/bin/hilex.h new file mode 100644 index 00000000..882b5f95 --- /dev/null +++ b/bin/hilex.h @@ -0,0 +1,50 @@ +/* Copyright (C) 2020 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <stdio.h> + +#define ENUM_CLASS \ + X(None) \ + X(Normal) \ + X(Operator) \ + X(Number) \ + X(Keyword) \ + X(Ident) \ + X(Macro) \ + X(Comment) \ + X(String) \ + X(Escape) \ + X(Format) \ + X(Subst) + +enum Class { +#define X(class) class, + ENUM_CLASS +#undef X + ClassCap, +}; + +typedef int Lex(void); +struct Lexer { + Lex *lex; + FILE **in; + char **text; +}; + +extern const struct Lexer LexC; +extern const struct Lexer LexMake; +extern const struct Lexer LexMdoc; +extern const struct Lexer LexSh; diff --git a/bin/htagml.c b/bin/htagml.c new file mode 100644 index 00000000..eb5128d1 --- /dev/null +++ b/bin/htagml.c @@ -0,0 +1,207 @@ +/* Copyright (C) 2021 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <ctype.h> +#include <err.h> +#include <regex.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sysexits.h> +#include <unistd.h> + +static char *nomagic(const char *pattern) { + char *buf = malloc(2 * strlen(pattern) + 1); + if (!buf) err(EX_OSERR, "malloc"); + char *ptr = buf; + for (const char *ch = pattern; *ch; ++ch) { + if (strchr(".[*", *ch)) *ptr++ = '\\'; + *ptr++ = *ch; + } + *ptr = '\0'; + return buf; +} + +static size_t escape(bool esc, const char *ptr, size_t len) { + if (!esc) { + fwrite(ptr, len, 1, stdout); + return len; + } + for (size_t i = 0; i < len; ++i) { + switch (ptr[i]) { + break; case '&': printf("&"); + break; case '<': printf("<"); + break; case '"': printf("""); + break; default: putchar(ptr[i]); + } + } + return len; +} + +static void id(const char *tag) { + for (const char *ch = tag; *ch; ++ch) { + if (isalnum(*ch) || strchr("-._", *ch)) { + putchar(*ch); + } else { + putchar('_'); + } + } +} + +static char *hstrstr(const char *haystack, const char *needle) { + while (haystack) { + char *elem = strchr(haystack, '<'); + char *match = strstr(haystack, needle); + if (!match) return NULL; + if (!elem || match < elem) return match; + haystack = strchr(elem, '>'); + } + return NULL; +} + +int main(int argc, char *argv[]) { + bool pre = false; + bool pipe = false; + bool index = false; + const char *tagsFile = "tags"; + for (int opt; 0 < (opt = getopt(argc, argv, "f:ipx"));) { + switch (opt) { + break; case 'f': tagsFile = optarg; + break; case 'i': pipe = true; + break; case 'p': pre = true; + break; case 'x': index = true; + break; default: return EX_USAGE; + } + } + if (optind == argc) errx(EX_USAGE, "name required"); + const char *name = argv[optind]; + + FILE *file = fopen(tagsFile, "r"); + if (!file) err(EX_NOINPUT, "%s", tagsFile); + + size_t len = 0; + size_t cap = 256; + struct Tag { + char *tag; + int num; + regex_t regex; + } *tags = malloc(cap * sizeof(*tags)); + if (!tags) err(EX_OSERR, "malloc"); + + char *buf = NULL; + size_t bufCap = 0; + while (0 < getline(&buf, &bufCap, file)) { + char *line = buf; + char *tag = strsep(&line, "\t"); + char *file = strsep(&line, "\t"); + char *def = strsep(&line, "\n"); + if (!tag || !file || !def) errx(EX_DATAERR, "malformed tags file"); + + if (strcmp(file, name)) continue; + if (len == cap) { + tags = realloc(tags, (cap *= 2) * sizeof(*tags)); + if (!tags) err(EX_OSERR, "realloc"); + } + tags[len].tag = strdup(tag); + if (!tags[len].tag) err(EX_OSERR, "strdup"); + + tags[len].num = 0; + if (def[0] == '/' || def[0] == '?') { + def++; + def[strlen(def)-1] = '\0'; + char *search = nomagic(def); + int error = regcomp( + &tags[len].regex, search, REG_NEWLINE | REG_NOSUB + ); + free(search); + if (error) { + warnx("invalid regex for tag %s: %s", tag, def); + continue; + } + } else { + tags[len].num = strtol(def, &def, 10); + if (*def) { + warnx("invalid line number for tag %s: %s", tag, def); + continue; + } + } + len++; + } + fclose(file); + + file = fopen(name, "r"); + if (!file) err(EX_NOINPUT, "%s", name); + + int num = 0; + printf(pre ? "<pre>" : index ? "<ul class=\"index\">\n" : ""); + while (0 < getline(&buf, &bufCap, file) && ++num) { + struct Tag *tag = NULL; + for (size_t i = 0; i < len; ++i) { + if (tags[i].num) { + if (num != tags[i].num) continue; + } else { + if (regexec(&tags[i].regex, buf, 0, NULL, 0)) continue; + } + tag = &tags[i]; + tag->num = num; + break; + } + if (index) { + if (!tag) continue; + printf("<li><a class=\"tag\" href=\"#"); + id(tag->tag); + printf("\">"); + escape(true, tag->tag, strlen(tag->tag)); + printf("</a></li>\n"); + continue; + } + if (pipe) { + ssize_t len = getline(&buf, &bufCap, stdin); + if (len < 0) { + errx(EX_DATAERR, "missing line %d on standard input", num); + } + } + if (!tag) { + escape(!pipe, buf, strlen(buf)); + continue; + } + + size_t mlen = strlen(tag->tag); + char *match = (pipe ? hstrstr : strstr)(buf, tag->tag); + while (match > buf && isalnum(match[-1])) { + match = (pipe ? hstrstr : strstr)(&match[mlen], tag->tag); + } + if (!match && tag->tag[0] == 'M') { + mlen = 4; + match = (pipe ? hstrstr : strstr)(buf, "main"); + } + if (!match) { + mlen = strlen(buf) - 1; + match = buf; + } + escape(!pipe, buf, match - buf); + printf("<a class=\"tag\" id=\""); + id(tag->tag); + printf("\" href=\"#"); + id(tag->tag); + printf("\">"); + match += escape(!pipe, match, mlen); + printf("</a>"); + escape(!pipe, match, strlen(match)); + } + printf(pre ? "</pre>" : index ? "</ul>\n" : ""); +} diff --git a/bin/html.mk b/bin/html.mk new file mode 100644 index 00000000..15e5257a --- /dev/null +++ b/bin/html.mk @@ -0,0 +1,45 @@ +WEBROOT ?= /usr/local/www/causal.agency + +HTMLS = index.html png.html +HTMLS += ${BINS:=.html} +HTMLS += ${BSD:=.html} +HTMLS += ${GAMES:=.html} +HTMLS += ${LINUX:=.html} +HTMLS += ${TLS:=.html} + +html: ${HTMLS} + @true + +install-html: ${HTMLS} + install -d ${WEBROOT}/bin + install -C -m 644 ${HTMLS} ${WEBROOT}/bin + +${HTMLS}: html.sh scheme hilex htagml htmltags + +htmltags: *.[chly] mtags Makefile html.mk *.sh + rm -f $@ + for f in *.[chly]; do ctags -aw -f $@ $$f; done + ./mtags -a -f $@ Makefile html.mk *.sh + +index.html: README.7 Makefile html.mk html.sh + sh html.sh README.7 Makefile html.mk html.sh > $@ + +.SUFFIXES: .html + +.c.html: + sh html.sh man1/${<:.c=.1} $< > $@ + +.h.html: + sh html.sh man3/${<:.h=.3} $< > $@ + +.y.html: + sh html.sh man1/${<:.y=.1} $< > $@ + +.sh.html: + sh html.sh man1/${<:.sh=.1} $< > $@ + +.pl.html: + sh html.sh man1/${<:.pl=.1} $< > $@ + +freecell.html: freecell.c man6/freecell.6 + sh html.sh man6/freecell.6 freecell.c > $@ diff --git a/bin/html.sh b/bin/html.sh new file mode 100644 index 00000000..d76fcc8c --- /dev/null +++ b/bin/html.sh @@ -0,0 +1,65 @@ +#!/bin/sh +set -eu + +readonly GitURL='https://git.causal.agency/src/tree/bin' + +man=$1 +shift +title=${man##*/} +title=${title%.[1-9]} + +cat <<EOF +<!DOCTYPE html> +<meta charset="UTF-8"> +<title>${title}</title> +<style> +html { line-height: 1.25em; font-family: monospace; } +body { max-width: 80ch; margin: 1em auto; padding: 0 1ch; } + +table.head, table.foot { width: 100%; } +td.head-rtitle, td.foot-os { text-align: right; } +td.head-vol { text-align: center; } +div.Pp { margin: 1ex 0ex; } +div.Nd, div.Bf, div.Op { display: inline; } +span.Pa, span.Ad { font-style: italic; } +span.Ms { font-weight: bold; } +dl.Bl-diag > dt { font-weight: bold; } +code.Nm, code.Fl, code.Cm, code.Ic, code.In, code.Fd, code.Fn, +code.Cd { font-weight: bold; font-family: inherit; } + +table { border-collapse: collapse; } +table.Nm code.Nm { padding-right: 1ch; } +table.foot { margin-top: 1em; } + +ul.index { padding: 0; } +ul.index li { display: inline; list-style-type: none; } +pre { -moz-tab-size: 4; tab-size: 4; } + +$(./scheme -st) +html { background-color: var(--ansi16); color: var(--ansi17); } +a { color: var(--ansi4); } +a:visited { color: var(--ansi5); } +a.permalink, a.tag { color: var(--ansi3); text-decoration: none; } +a.permalink > code:target, *:target > a.permalink, +a.tag:target { color: var(--ansi11); } +pre .Ke { color: var(--ansi7); } +pre .Ma { color: var(--ansi2); } +pre .Co { color: var(--ansi4); } +pre .St { color: var(--ansi6); } +pre .Fo { color: var(--ansi14); } +pre .Su { color: var(--ansi1); } +</style> +EOF + +opts=fragment +[ "${man}" = "README.7" ] && opts=${opts},man=%N.html +mandoc -T html -O ${opts} "${man}" + +for src; do + cat <<-EOF + <p> + <a href="${GitURL}/${src}">${src} in git</a> + EOF + ./htagml -x -f htmltags "${src}" + ./hilex -t -f html "${src}" | ./htagml -ip -f htmltags "${src}" +done diff --git a/bin/make.l b/bin/make.l new file mode 100644 index 00000000..027fefa3 --- /dev/null +++ b/bin/make.l @@ -0,0 +1,132 @@ +/* Copyright (C) 2020 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +%option prefix="make" +%option noyywrap + +%{ +#include "hilex.h" +%} + +%s Assign Preproc +%x Variable Shell + +ident [._[:alnum:]]+ +assign [+?:!]?= +target [-._/?*\[\][:alnum:]]+ +operator [:!]|:: + +%% + static int pop = INITIAL; + static int depth = 0; + +^"\t"+ { + BEGIN(pop = Shell); + return Normal; +} +<Shell>{ + "\n" { + BEGIN(pop = INITIAL); + return Normal; + } + "\\\n" { return Normal; } + [^\\\n$]+|. { return Normal; } +} + +[[:blank:]]+ { return Normal; } + +{operator} { return Operator; } + +"."(PHONY|PRECIOUS|SUFFIXES)/{operator}? { + return Keyword; +} + +{target}/{operator} { return Ident; } + +^"."{ident} | +^"-"?include { + BEGIN(pop = Preproc); + return Macro; +} +<Preproc>{ + "\n" { + BEGIN(pop = INITIAL); + return Normal; + } + "\\\n""\t"? { return Normal; } + + "\""[^""]*"\"" | + "<"[^>]*">" { + return String; + } + + [!<>=]"="?|"||"|"&&" { return Operator; } + [0-9]+|"0x"[[:xdigit:]]+ { return Number; } + defined|make|empty|exists|target|commands|in { return Keyword; } +} + +^{ident}/[[:blank:]]*{assign} { + return Ident; +} + +{assign} { + BEGIN(pop = Assign); + return Operator; +} +<Assign>{ + "\n" { + BEGIN(pop = INITIAL); + return Normal; + } + "\\\n""\t"? { return Escape; } + [^\\$[:space:]]+|. { return String; } +} + +{target} { return Ident; } + +"#"([^\\\n]|"\\"[^\n]|"\\\n")* { return Comment; } + +<*>{ + "$"("{"|"(")/[^$] { + depth++; + BEGIN(Variable); + yymore(); + } + "$"("{"|"(") { + depth++; + BEGIN(Variable); + return Subst; + } + "$". { return Subst; } +} +<Variable>{ + [^${}()]*"}"|")" { + if (!--depth) BEGIN(pop); + return Subst; + } + [^${}()]+ { return Subst; } +} + +.|\n { return Normal; } + +%{ + (void)yyunput; + (void)input; +%} + +%% + +const struct Lexer LexMake = { yylex, &yyin, &yytext }; diff --git a/bin/man1/beef.1 b/bin/man1/beef.1 new file mode 100644 index 00000000..ea52cfa0 --- /dev/null +++ b/bin/man1/beef.1 @@ -0,0 +1,91 @@ +.Dd August 28, 2019 +.Dt BEEF 1 +.Os +. +.Sh NAME +.Nm beef +.Nd Befunge-93 interpreter +. +.Sh SYNOPSIS +.Nm +.Op Ar file +. +.Sh DESCRIPTION +.Nm +is a Befunge-93 interpreter. +If no +.Ar file +is provided, +the program is read from standard input. +. +.Ss Befunge-93 Command Summary +.Bl -tag -width "0-9" -compact +.It \(dq +toggle string mode +.It 0-9 +push value +.It + +add +.It - +subtract +.It * +multiply +.It / +divide +.It % +modulo +.It ! +not +.It ` +greater than +.It > +right +.It < +left +.It ^ +up +.It v +down +.It ? +random +.It _ +horizontal (left) if +.It | +vertical (up) if +.It : +duplicate +.It \e +swap +.It $ +drop +.It . +output integer +.It , +output ASCII +.It # +bridge +.It g +get (y, x) +.It p +put (y, x) = v +.It & +input integer +.It ~ +input ASCII +.It @ +exit +.El +. +.Sh EXIT STATUS +.Nm +exits with the top value left on the stack, +or 0 if the stack is left empty. +. +.Sh STANDARDS +.Rs +.%A Chris Pressey +.%Q Cat's Eye Technologies +.%T Befunge-93 +.%D September, 1993 +.%U https://github.com/catseye/Befunge-93/blob/master/doc/Befunge-93.markdown +.Re diff --git a/bin/man1/bibsort.1 b/bin/man1/bibsort.1 new file mode 100644 index 00000000..07ed91ef --- /dev/null +++ b/bin/man1/bibsort.1 @@ -0,0 +1,40 @@ +.Dd February 16, 2021 +.Dt BIBSORT 1 +.Os +. +.Sh NAME +.Nm bibsort +.Nd reformat bibliography +. +.Sh SYNOPSIS +.Nm +.Op Ar file +. +.Sh DESCRIPTION +.Nm +reformats on standard output +the +.Em STANDARDS +section of the +.Xr mdoc 7 +manual page +.Ar file +or standard input. +Bibliographic references +are sorted by author last names, +and formatted in an item list +with macro lines appearing +in the order they are formatted by +.Xr mandoc 1 . +Additionally, +.Ic \&%N +macros referencing RFC numbers +are rewritten to +.Ic \&%R +macros +and missing +.Ic \&%U +macros are added for RFCs. +. +.Sh EXAMPLES +.Dl :%!bibsort diff --git a/bin/man1/bit.1 b/bin/man1/bit.1 new file mode 100644 index 00000000..b91a10e1 --- /dev/null +++ b/bin/man1/bit.1 @@ -0,0 +1,55 @@ +.Dd December 30, 2020 +.Dt BIT 1 +.Os +. +.Sh NAME +.Nm bit +.Nd a calculator +. +.Sh SYNOPSIS +.Nm +. +.Sh DESCRIPTION +.Nm +is an integer calculator. +Its syntax resembles that of C expressions, +with the following changes: +. +.Bl -bullet +.It +Underscores are allowed in integer literals. +.It +The +.Sy 0b +prefix is used for binary literals. +.It +The +.Sy -> +operator is used for arithmetic shift. +.It +The unary +.Sy & +operator is equivalent to +.Sy (1 << x) - 1 . +.It +The postfix operators +.Sy K , +.Sy M , +.Sy G , +.Sy T +are used as constant multipliers. +.It +The postfix operator +.Sy $ +is of lowest precedence and is equivalent to +wrapping the preceding expression in parentheses. +.It +Single-letter (lower case) variables +can be assigned. +The variable +.Sy _ +stores the previous result. +.El +. +.Sh SEE ALSO +.Xr operator 7 diff --git a/bin/man1/bri.1 b/bin/man1/bri.1 new file mode 100644 index 00000000..54a02322 --- /dev/null +++ b/bin/man1/bri.1 @@ -0,0 +1,44 @@ +.Dd September 7, 2018 +.Dt BRI 1 +.Os +. +.Sh NAME +.Nm bri +.Nd backlight brightness control +. +.Sh SYNOPSIS +.Nm +.Op Ar brightness +.Nm +.Cm + +.Nm +.Cm - +. +.Sh DESCRIPTION +.Nm +controls the backlight brightness on Linux. +. +.Pp +With no argument, +the current brightness is printed. +With a numerical +.Ar brightness +argument, +the brightness is set. +. +.Pp +The +.Cm + +and +.Cm - +arguments +may be repeated any number of times +and adjust the brightness +in increments of 16. +. +.Sh FILES +.Bl -tag +.It Pa /sys/class/backlight +Files under the first subdirectory found +are used to control the backlight brightness. +.El diff --git a/bin/man1/c.1 b/bin/man1/c.1 new file mode 100644 index 00000000..97384ebe --- /dev/null +++ b/bin/man1/c.1 @@ -0,0 +1,45 @@ +.Dd January 9, 2021 +.Dt C 1 +.Os +. +.Sh NAME +.Nm c +.Nd run C +. +.Sh SYNOPSIS +.Nm +.Op Fl t +.Op Fl e Ar expr +.Op Fl i Ar include +.Op Ar stmts ... +. +.Sh DESCRIPTION +The +.Nm +utility compiles and runs +C statements wrapped in +.Fn main +with common includes. +If no +.Ar expr +or +.Ar stmts +are provided, +statements are read from standard input. +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl e Ar expr +Print the result of the C expression +.Ar expr +after executing +.Ar stmts . +.It Fl i Ar include +Add the include file +.Ar include . +.It Fl t +With +.Fl e , +print the type of the expression. +.El diff --git a/bin/man1/dtch.1 b/bin/man1/dtch.1 new file mode 100644 index 00000000..e27713e1 --- /dev/null +++ b/bin/man1/dtch.1 @@ -0,0 +1,67 @@ +.Dd August 12, 2019 +.Dt DTCH 1 +.Os +. +.Sh NAME +.Nm dtch +.Nd detached sessions +. +.Sh SYNOPSIS +.Nm +.Op Fl s +.Ar name +.Op Ar command ... +.Nm +.Fl a +.Ar name +. +.Sh DESCRIPTION +.Nm +spawns a +.Ar command +in a detachable session. +If no +.Ar command +is given, +the value of +.Ev SHELL +is used. +The +.Nm +process +should be run as a background job +or with +.Xr nohup 1 . +. +.Pp +To attach to an existing session, +pass the +.Fl a +flag. +To detach from the session, +type +.Ic ^Q . +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl a +Attach to an existing session. +.It Fl s +Sink the output of +.Ar command +while detached. +.El +. +.Sh FILES +.Bl -tag -width Ds +.It Pa ~/.dtch +Directory of UNIX-domain sockets +for each session. +.El +. +.Sh EXAMPLES +.Bd -literal -offset indent +dtch foo vim & +dtch -a foo +.Ed diff --git a/bin/man1/ever.1 b/bin/man1/ever.1 new file mode 100644 index 00000000..8cdab99b --- /dev/null +++ b/bin/man1/ever.1 @@ -0,0 +1,51 @@ +.Dd February 24, 2021 +.Dt EVER 1 +.Os +. +.Sh NAME +.Nm ever +.Nd watch files +. +.Sh SYNOPSIS +.Nm +.Op Fl iq +.Ar +.Ar command +.Nm +.Op Fl i +.Ar +.Fl - +.Ar command +.Op Ar argument ... +. +.Sh DESCRIPTION +.Nm +executes the +.Ar command +whenever +.Ar file +is modified. +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl i +Attach the +.Ar file +which was modified +to the standard input of +.Ar command . +.It Fl q +Suppress exit status output. +.El +. +.Sh EXAMPLES +.Dl ever ever.c make +.Dl ever when.y ever.c -- make when ever +.Dl ever -i ever.1 mandoc +. +.Sh CAVEATS +.Nm +does not support Linux +since it uses +.Xr kqueue 2 . diff --git a/bin/man1/fbatt.1 b/bin/man1/fbatt.1 new file mode 100644 index 00000000..2d30cba7 --- /dev/null +++ b/bin/man1/fbatt.1 @@ -0,0 +1,34 @@ +.Dd September 7, 2018 +.Dt FBATT 1 +.Os +. +.Sh NAME +.Nm fbatt +.Nd framebuffer battery indicator +. +.Sh SYNOPSIS +.Nm +. +.Sh DESCRIPTION +.Nm +displays a battery charge indicator +in the top-right corner +of the Linux framebuffer. +. +.Sh ENVIRONMENT +.Bl -tag +.It Ev FRAMEBUFFER +The framebuffer device path. +.El +. +.Sh FILES +.Bl -tag +.It Pa /dev/fb0 +The default framebuffer device path. +.It Pa /sys/class/power_supply +The first subdirectory containing +.Pa charge_full +and +.Pa charge_now +is used to read the battery charge. +.El diff --git a/bin/man1/fbclock.1 b/bin/man1/fbclock.1 new file mode 100644 index 00000000..3195eb42 --- /dev/null +++ b/bin/man1/fbclock.1 @@ -0,0 +1,36 @@ +.Dd September 7, 2018 +.Dt FBCLOCK 1 +.Os +. +.Sh NAME +.Nm fbclock +.Nd framebuffer clock +. +.Sh SYNOPSIS +.Nm +. +.Sh DESCRIPTION +.Nm +displays a clock +in the top-right corner +of the Linux framebuffer. +. +.Sh ENVIRONMENT +.Bl -tag +.It Ev FONT +Path to gzipped PSF file. +. +.It Ev FRAMEBUFFER +The framebuffer device path. +.El +. +.Sh FILES +.Bl -tag +.It Pa /dev/fb0 +The default framebuffer device path. +.It Pa /usr/share/kbd/consolefonts/Lat2-Terminus16.psfu.gz +The default font path. +.El +. +.Sh SEE ALSO +.Xr setfont 8 diff --git a/bin/man1/glitch.1 b/bin/man1/glitch.1 new file mode 100644 index 00000000..6562c4dc --- /dev/null +++ b/bin/man1/glitch.1 @@ -0,0 +1,77 @@ +.Dd September 7, 2018 +.Dt GLITCH 1 +.Os +. +.Sh NAME +.Nm glitch +.Nd PNG glitcher +. +.Sh SYNOPSIS +.Nm +.Op Fl cfimprxy +.Op Fl a Ar filters +.Op Fl d Ar filters +.Op Fl o Ar file +.Op Ar +. +.Sh DESCRIPTION +.Nm +misinterprets PNG files +according to the options given +to create natural glitch effects. +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl a Ar filters +Apply a pattern of comma-separated filters. +Filters are +.Cm none , +.Cm sub , +.Cm up , +.Cm average , +.Cm paeth . +. +.It Fl c +Write to standard output. +. +.It Fl d Ar filters +Declare a pattern of comma-separated filters. +See +.Fl a +for list of filters. +. +.It Fl f +Apply filtering in place of reconstruction. +. +.It Fl i +Invert image data after filtering. +. +.It Fl m +Mirror scanlines after filtering. +. +.It Fl o Ar file +Write to +.Ar file . +. +.It Fl p +Use a broken Paeth predictor function. +. +.It Fl r +Apply reconstruction in place of filtering. +. +.It Fl x +Zero first pixel of each scanline after filtering. +. +.It Fl y +Zero first scanline after filtering. +.El +. +.Sh EXAMPLES +.Dl glitch -m -a sub -d sub +. +.Sh SEE ALSO +.Xr pngo 1 +. +.Sh BUGS +More wanted. diff --git a/bin/man1/hilex.1 b/bin/man1/hilex.1 new file mode 100644 index 00000000..80b3155b --- /dev/null +++ b/bin/man1/hilex.1 @@ -0,0 +1,218 @@ +.Dd January 20, 2021 +.Dt HILEX 1 +.Os +. +.Sh NAME +.Nm hilex +.Nd syntax highlighter +. +.Sh SYNOPSIS +.Nm +.Op Fl t +.Op Fl f Ar format +.Op Fl l Ar lexer +.Op Fl n Ar name +.Op Fl o Ar opts +.Op Ar file +. +.Sh DESCRIPTION +The +.Nm +utility +syntax highlights +the contents of +.Ar file +or standard input +and formats it on standard output. +. +.Pp +The arguments are as follows: +.Bl -tag -width "-f format" +.It Fl f Ar format +Set the output format. +See +.Sx Output Formats . +The default format is +.Cm ansi . +. +.It Fl l Ar lexer +Set the input lexer. +See +.Sx Input Lexers . +The default input lexer is inferred from +.Ar name +or the first line of input. +. +.It Fl n Ar name +Set the name used to infer the input lexer. +The default is the final component of +.Ar file . +. +.It Fl o Ar opts +Set output format options. +.Ar opts +is a comma-separated list of options. +Options for each output format are documented in +.Sx Output Formats . +. +.It Fl t +Default to the +.Cm text +input lexer if one cannot be inferred. +.El +. +.Ss Output Formats +.Bl -tag -width Ds +.It Cm ansi +Output ANSI terminal control sequences. +If standard output is a terminal +and standard input is not being read, +output is piped to +.Ev PAGER +with +.Ev LESS=FRX +if it is not already set. +. +.It Cm html +Output HTML +.Sy span +elements +with the following classes: +.Pp +.Bl -hang -width "\&Op" -compact +.It Sy \&Op +operators +.It Sy \&Nu +numbers +.It Sy \&Ke +keywords +.It Sy \&Id +identifiers +.It Sy \&Ma +macros +.It Sy \&Co +comments +.It Sy \&St +strings +.It Sy \&Es +character escapes +.It Sy \&Fo +format strings +.It Sy \&Su +variable substitutions +.El +.Pp +The options are as follows: +.Bl -tag -width "title=..." +.It Cm document +Output an HTML document containing a +.Sy pre +element. +.It Cm inline +Output inline style attributes +rather than classes. +.It Cm pre +Wrap the output in a +.Sy pre +element with the class +.Sy hilex . +.It Cm style Ns = Ns Ar url +With +.Cm document , +use the external stylesheet +.Ar url . +If unset, +default styles are included in a +.Sy style +element. +.It Cm tab Ns = Ns Ar n +With +.Cm document , +.Cm inline +or +.Cm pre , +set the +.Sy tab-size +property to +.Ar n . +.It Cm title Ns = Ns Ar ... +With +.Cm document , +set the +.Sy title +element text. +The default title is the same as +.Ar name . +.El +. +.It Cm irc +Output IRC formatting codes. +The options are as follows: +.Bl -tag -width "monospace" +.It Cm monospace +Use the IRCCloud monospace formatting code. +.El +.El +. +.Ss Input Lexers +.Bl -tag -width Ds +.It Cm c +The C11 language, +with minimal support for +.Xr lex 1 , +.Xr yacc 1 +and Objective-C input. +Inferred for +.Pa *.[chlmy] +files. +. +.It Cm make +BSD +.Xr make 1 . +Inferred for +.Pa Makefile , +.Pa *.mk +and +.Pa *.am +files. +. +.It Cm mdoc +The +.Xr mdoc 7 +language. +Inferred for +.Pa *.[1-9] +files +and files starting with +.Dq .Dd . +. +.It Cm sh +POSIX +.Xr sh 1 . +Since lexical analysis of +the shell command language +is effectively impossible, +this is best-effort only. +Inferred for +.Pa *.sh , +.Pa .profile , +.Pa .shrc +files +and files starting with +.Dq #!/bin/sh . +. +.It Cm text +Plain text. +Inferred for +.Pa *.txt +files. +.El +. +.Sh ENVIRONMENT +.Bl -tag -width "PAGER" +.It Ev PAGER +The command to pipe ANSI output to +if standard output is a terminal. +The default is +.Ev PAGER=less . +.El diff --git a/bin/man1/htagml.1 b/bin/man1/htagml.1 new file mode 100644 index 00000000..97e8f3f2 --- /dev/null +++ b/bin/man1/htagml.1 @@ -0,0 +1,69 @@ +.Dd January 12, 2021 +.Dt HTAGML 1 +.Os +. +.Sh NAME +.Nm htagml +.Nd format tagged file as HTML +. +.Sh SYNOPSIS +.Nm +.Op Fl ip | x +.Op Fl f Ar tagsfile +.Ar file +. +.Sh DESCRIPTION +The +.Nm +utility formats a file tagged with +.Xr ctags 1 +as HTML. +Tags are output as fragment hyperlinks +with the class +.Qq tag . +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl f Ar tagsfile +Read the tag descriptions from a file called +.Ar tagsfile . +The default behavior is +to read them from a file called +.Pa tags . +.It Fl i +Assume +.Ar file +has been pre-formatted +on standard input, +such as by a syntax highlighter. +Only tag hyperlinks are added. +.It Fl p +Wrap the output in a +.Sy pre +element. +.It Fl x +Instead produce an index of tags +ordered by their occurrence in +.Ar file . +The index is formatted as a +.Sy ul +element with the class +.Qq index . +.El +. +.Sh FILES +.Bl -tag -width Ds +.It Pa tags +default input tags file +.El +. +.Sh EXAMPLES +.Bd -literal -offset indent +ctags htagml.c && htagml htagml.c +hilex -f html htagml.c | htagml -i htagml.c +.Ed +. +.Sh SEE ALSO +.Xr ctags 1 , +.Xr hilex 1 diff --git a/bin/man1/modem.1 b/bin/man1/modem.1 new file mode 100644 index 00000000..a4bbc3f1 --- /dev/null +++ b/bin/man1/modem.1 @@ -0,0 +1,31 @@ +.Dd December 8, 2020 +.Dt MODEM 1 +.Os +. +.Sh NAME +.Nm modem +.Nd fixed baud rate wrapper +. +.Sh SYNOPSIS +.Nm +.Op Fl r Ar rate +.Ar command ... +. +.Sh DESCRIPTION +.Nm +runs the +.Ar command +in a new PTY +with a fixed baud rate. +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl r Ar rate +Set the baud rate. +The default is 19200. +.El +. +.Sh BUGS +Window size changes are not propagated +to the child PTY. diff --git a/bin/man1/mtags.1 b/bin/man1/mtags.1 new file mode 100644 index 00000000..57856ba0 --- /dev/null +++ b/bin/man1/mtags.1 @@ -0,0 +1,76 @@ +.Dd January 20, 2021 +.Dt MTAGS 1 +.Os +. +.Sh NAME +.Nm mtags +.Nd miscellaneous tags +. +.Sh SYNOPSIS +.Nm +.Op Fl a +.Op Fl f Ar tagsfile +.Ar +. +.Sh DESCRIPTION +The +.Nm +utility +makes a +.Pa tags +file for +.Xr ex 1 +from the specified +.Xr make 1 , +.Xr mdoc 7 +.Xr sh 1 +sources. +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl a +Append to +.Pa tags +file. +.It Fl f Ar tagsfile +Place the tag descriptions +in a file called +.Ar tagsfile . +The default behaviour is +to place them in a file called +.Pa tags . +.El +. +.Pp +Files whose names are +.Pa Makefile +or end in +.Pa .mk +are assumed to be +.Xr make 1 +files. +Files whose names end in +.Pa .[1-9] +are assumed to be +.Xr mdoc 7 +files. +Files whose names are +.Pa .profile , +.Pa .shrc +or end in +.Pa .sh +are assumed to be +.Xr sh 1 +files. +. +.Sh FILES +.Bl -tag -width Ds +.It Pa tags +default output tags file +.El +. +.Sh SEE ALSO +.Xr ctags 1 , +.Xr ex 1 , +.Xr vi 1 diff --git a/bin/man1/nudge.1 b/bin/man1/nudge.1 new file mode 100644 index 00000000..3ca4294a --- /dev/null +++ b/bin/man1/nudge.1 @@ -0,0 +1,44 @@ +.Dd September 4, 2020 +.Dt NUDGE 1 +.Os +. +.Sh NAME +.Nm nudge +.Nd terminal vibrator +. +.Sh SYNOPSIS +.Nm +.Op Fl f Ar file +.Op Fl n Ar count +.Op Fl s Ar shake +.Op Fl t Ar delay +. +.Sh DESCRIPTION +The +.Nm +utility +nudges the terminal. +An +.Xr xterm 1 +compatible terminal is required. +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl f Ar file +Open the terminal named by +.Ar file . +The default is +.Pa /dev/tty . +.It Fl n Ar count +Set the number of times +to nudge the terminal. +The default is 2. +.It Fl s Ar shake +Set the shake intensity in pixels. +The default is 10. +.It Fl t Ar delay +Set the interval between shakes +in milliseconds. +The default is 20. +.El diff --git a/bin/man1/order.1 b/bin/man1/order.1 new file mode 100644 index 00000000..89fcbda5 --- /dev/null +++ b/bin/man1/order.1 @@ -0,0 +1,38 @@ +.Dd July 18, 2020 +.Dt ORDER 1 +.Os +. +.Sh NAME +.Nm order +.Nd operator precedence +. +.Sh SYNOPSIS +.Nm +.Op Ar expr ... +. +.Sh DESCRIPTION +.Nm +parses C expressions +and prints them with parentheses +according to the precedence rules in +.Xr operator 7 . +If no +.Ar expr +are given, +an expression is read +from standard input. +. +.Sh EXAMPLES +.Bd -literal +$ order 'a & b << 1' +(a & (b << 1)) +.Ed +. +.Sh SEE ALSO +.Xr operator 7 +. +.Sh CAVEATS +.Nm +does not support the +.Sy (type) +operator. diff --git a/bin/man1/pbd.1 b/bin/man1/pbd.1 new file mode 100644 index 00000000..f0665891 --- /dev/null +++ b/bin/man1/pbd.1 @@ -0,0 +1,66 @@ +.Dd February 9, 2021 +.Dt PBD 1 +.Os +. +.Sh NAME +.Nm pbd +.Nd macOS pasteboard daemon +. +.Sh SYNOPSIS +.Nm Op Fl s | c | p | o Ar url +. +.Sh DESCRIPTION +.Nm +is a daemon which pipes into macOS +.Xr pbcopy 1 , +from +.Xr pbpaste 1 +and invokes +.Xr open 1 +in response to messages +sent over TCP port 7062. +. +.Pp +The socket can be forwarded through +.Xr ssh 1 +and the flags can be used remotely +to access the local pasteboard +and open URLs. +. +.Pp +Forwarding can be configured with: +.Pp +.Dl RemoteForward 7062 127.0.0.1:7062 +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl c +Behave as +.Xr pbcopy 1 . +.It Fl o Ar url +Behave as +.Xr open 1 . +.It Fl p +Behave as +.Xr pbpaste 1 . +.It Fl s +Run the server. +This is the default. +.El +.Pp +ACAB. +. +.Sh EXAMPLES +.Bd -literal -offset indent +pbd & +ssh -R 7062:127.0.0.1:7062 tux.local +pbd -p +.Ed +. +.Sh SEE ALSO +.Xr open 1 , +.Xr pbcopy 1 , +.Xr pbpaste 1 , +.Xr ssh 1 , +.Xr ssh_config 5 diff --git a/bin/man1/pngo.1 b/bin/man1/pngo.1 new file mode 100644 index 00000000..cec13160 --- /dev/null +++ b/bin/man1/pngo.1 @@ -0,0 +1,56 @@ +.Dd September 17, 2018 +.Dt PNGO 1 +.Os +. +.Sh NAME +.Nm pngo +.Nd PNG optimizer +. +.Sh SYNOPSIS +.Nm +.Op Fl cv +.Op Fl o Ar file +.Op Ar +. +.Sh DESCRIPTION +.Nm +optimizes PNG files for size. +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl c +Write to standard output. +.It Fl o Ar file +Write to +.Ar file . +.It Fl v +Output PNG header information. +.El +. +.Pp +.Nm +performs the following optimizations: +.Bl -bullet +.It +Discard ancillary chunks. +.It +Discard unnecessary alpha channel. +.It +Convert unnecessary truecolor to grayscale. +.It +Palletize color and alpha if possible. +.It +Reduce bit depth if possible. +.It +Apply a simple filter heuristic. +.It +Apply zlib's best compresion. +.El +. +.Sh SEE ALSO +.Xr glitch 1 +. +.Sh CAVEATS +.Nm +does not support interlaced PNGs. diff --git a/bin/man1/psf2png.1 b/bin/man1/psf2png.1 new file mode 100644 index 00000000..db74c6e2 --- /dev/null +++ b/bin/man1/psf2png.1 @@ -0,0 +1,53 @@ +.Dd September 28, 2018 +.Dt PSF2PNG 1 +.Os +. +.Sh NAME +.Nm psf2png +.Nd PSF2 to PNG renderer +. +.Sh SYNOPSIS +.Nm +.Op Fl b Ar bg +.Op Fl c Ar cols +.Op Fl f Ar fg +.Op Fl s Ar str +.Op Ar file +. +.Sh DESCRIPTION +.Nm +renders the PSF2 font +.Ar file +or standard input +to PNG +on standard output. +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl b Ar bg +Use +.Ar bg +(hexadecimal RGB) +as background color. +The default background color is black. +.It Fl c Ar cols +Arrange glyphs in +.Ar cols +columns. +The default number of columns is 32. +.It Fl f Ar fg +Use +.Ar fg +(hexadecimal RGB) +as foreground color. +The default foreground color is white. +.It Fl s Ar str +Render glyphs for string +.Ar str +rather than all glyphs. +.El +. +.Sh SEE ALSO +.Xr pngo 1 , +.Xr psfed 1 diff --git a/bin/man1/psfed.1 b/bin/man1/psfed.1 new file mode 100644 index 00000000..3fbc4710 --- /dev/null +++ b/bin/man1/psfed.1 @@ -0,0 +1,166 @@ +.Dd January 14, 2019 +.Dt PSFED 1 +.Os +. +.Sh NAME +.Nm psfed +.Nd PSF2 font editor +. +.Sh SYNOPSIS +.Nm +.Op Fl H Ar height +.Op Fl g Ar glyphs +.Op Fl h Ar height +.Op Fl w Ar width +.Ar file +. +.Sh DESCRIPTION +.Nm +is a PSF2 font editor +for the Linux framebuffer. +. +.Pp +The arguments are as follows: +. +.Bl -tag -width Ds +.It Fl H Ar height +Modify the height of an existing font. +Only increasing the height is allowed. +. +.It Fl g Ar glyphs +Set the number of glyphs in a new font. +The default number of glyphs is 256. +. +.It Fl h Ar height +Set the height of a new font. +The default height is 16. +. +.It Fl w Ar width +Set the width of a new font. +The default width is 8. +.El +. +.Ss Normal Mode +In normal mode, +each glyph is displayed in a grid. +. +.Pp +.Bl -tag -width Ds -compact +.It Ic q +Quit. +.Nm +will ask for confirmation +if the font has been modified +since the last write. +. +.It Ic w +Write font to +.Ar file . +. +.It Ic - Ic + +Adjust display scale. +. +.It Ic h Ic l +Select previous/next glyph. +. +.It Ic k Ic j +Select glyph in previous/next row. +. +.It Ic f +Select glyph of next input character. +. +.It Ic ' +Return to previously selected glyph. +. +.It Ic y +Copy selected glyph. +. +.It Ic e +Edit selected glyph in +.Sx Edit Mode . +. +.It Ic i +Enter +.Sx Preview Mode . +.El +. +.Ss Edit Mode +In edit mode, +the selected glyph is displayed for editing +surrounded by a checked border. +The glyph is also displayed unscaled +in the bottom-right corner. +. +.Pp +.Bl -tag -width Ds -compact +.It Ic ESC +Return to +.Sx Normal Mode . +. +.It Ic - Ic + +Adjust display scale. +. +.It Ic g Ic G +Toggle guide on selected column/row. +. +.It Ic h Ic l +Select previous/next bit in row. +. +.It Ic k Ic j +Select previous/next bit in column. +. +.It Ic SPACE +Flip selected bit. +. +.It Ic r +Invert glyph. +. +.It Ic H Ic L +Move glyph left/right. +. +.It Ic K Ic J +Move glyph up/down. +. +.It Ic p +Paste the copied glyph. +. +.It Ic u +Revert glyph to initial state. +.El +. +.Ss Preview Mode +In preview mode, +arbitrary text may be entered +for preview. +Press +.Ic ESC +to return to +.Sx Normal Mode . +. +.Sh ENVIRONMENT +.Bl -tag -width FRAMEBUFFER +.It Ev FRAMEBUFFER +The framebuffer device path. +The default path is +.Pa /dev/fb0 . +.El +. +.Sh SEE ALSO +.Xr psfaddtable 1 , +.Xr psfgettable 1 , +.Xr psfstriptable 1 , +.Xr setfont 8 +. +.Sh CAVEATS +.Nm +does not support Unicode tables. +Use +.Xr psfaddtable 1 +to add Unicode tables +to fonts created by +.Nm . +. +.Sh BUGS +.Nm +makes no attempt to convert header fields +to and from little-endian format. diff --git a/bin/man1/ptee.1 b/bin/man1/ptee.1 new file mode 100644 index 00000000..04f9cdac --- /dev/null +++ b/bin/man1/ptee.1 @@ -0,0 +1,40 @@ +.Dd July 17, 2019 +.Dt PTEE 1 +.Os +. +.Sh NAME +.Nm ptee +.Nd tee for PTYs +. +.Sh SYNOPSIS +.Nm +.Ar command ... +.Cm > +.Ar file +. +.Sh DESCRIPTION +.Nm +runs +.Ar command +in a new PTY +which is mirrored to +the current PTY +and standard output. +Standard output must be redirected +to a file or pipe. +. +.Pp +Type +.Ic ^S +to toggle writing to standard output. +Type +.Ic ^Q +to write the media copy sequence for +.Xr shotty 1 . +. +.Sh SEE ALSO +.Xr tee 1 +. +.Sh BUGS +Window size changes are not propagated +to the child PTY. diff --git a/bin/man1/relay.1 b/bin/man1/relay.1 new file mode 100644 index 00000000..402c4726 --- /dev/null +++ b/bin/man1/relay.1 @@ -0,0 +1,48 @@ +.Dd April 28, 2019 +.Dt RELAY 1 +.Os +. +.Sh NAME +.Nm relay +.Nd IRC relay bot +. +.Sh SYNOPSIS +.Nm +.Ar host +.Ar port +.Ar nick +.Ar chan +. +.Sh DESCRIPTION +.Nm +is one half of an IRC relay pair. +It connects to +.Ar host Ns : Ns Ar port +over TLS +as +.Ar nick +and joins +.Ar chan . +. +.Pp +.Nm +outputs messages from +.Ar chan +to standard output +and sends messages to +.Ar chan +from standard input. +Two +.Nm +processes can be connected with +.Xr mkfifo 1 . +. +.Sh EXAMPLES +.Bd -literal -offset indent +mkfifo a b +relay a.example.com 6697 relay '#example' <>a >b +relay b.example.com 6697 relay '#example' <>b >a +.Ed +. +.Sh SEE ALSO +.Xr mkfifo 1 diff --git a/bin/man1/scheme.1 b/bin/man1/scheme.1 new file mode 100644 index 00000000..9f72d945 --- /dev/null +++ b/bin/man1/scheme.1 @@ -0,0 +1,59 @@ +.Dd February 6, 2021 +.Dt SCHEME 1 +.Os +. +.Sh NAME +.Nm scheme +.Nd color scheme +. +.Sh SYNOPSIS +.Nm +.Op Fl Xacghilmstx +.Op Fl p Ar n +. +.Sh DESCRIPTION +.Nm +generates a color scheme +and outputs it in a number of formats. +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl X +Output Xresources for +.Xr xterm 1 . +.It Fl a +Generate the 16 ANSI colors. +This is the default. +.It Fl c +Output a C enum. +.It Fl g +Output a swatch PNG. +.It Fl h +Output floating point HSV. +.It Fl i +Swap black and white. +.It Fl l +Output Linux console OSC sequences. +.It Fl m +Output a +.Xr mintty 1 +theme. +Use with +.Fl t . +.It Fl p Ar n +Generate only the color +.Ar n . +.It Fl s +Output CSS +for classes named +.Sy fg Ns Ar n +and +.Sy bg Ns Ar n . +.It Fl t +Generate the 16 ANSI colors as well as +background, foreground, bold, selection and cursor colors. +.It Fl x +Output hexadecimal RGB. +This is the default. +.El diff --git a/bin/man1/shotty.1 b/bin/man1/shotty.1 new file mode 100644 index 00000000..d5eaa780 --- /dev/null +++ b/bin/man1/shotty.1 @@ -0,0 +1,92 @@ +.Dd November 25, 2019 +.Dt SHOTTY 1 +.Os +. +.Sh NAME +.Nm shotty +.Nd terminal capture +. +.Sh SYNOPSIS +.Nm +.Op Fl Bdns +.Op Fl b Ar bg +.Op Fl f Ar fg +.Op Fl h Ar rows +.Op Fl w Ar cols +.Op Ar file +. +.Sh DESCRIPTION +.Nm +interprets terminal output from +.Ar file +or standard input +and produces HTML +.Sy <pre> +on standard output. +. +.Pp +Terminal output +can be captured with +.Xr ptee 1 . +.Nm +targets compatibility with +.Ev TERM Ns = Ns Cm xterm +and +.Ev TERM Ns = Ns Cm xterm-256color +as used by +.Xr ncurses 3 . +A snapshot of the terminal +is output each time +a media copy sequence occurs, +or once at the end of the capture. +. +.Pp +HTML output uses the classes +.Sy bg Ns Va n +and +.Sy fg Ns Va n , +and inline styles for +bold, italic and underline. +CSS for colors can be generated with +.Xr scheme 1 . +. +.Pp +The arguments are as follows: +.Bl -tag -width "-w cols" +.It Fl B +Replace bold with bright colors. +. +.It Fl b Ar bg +Set the default background color. +The default value is 0 (black). +. +.It Fl d +Output the terminal state +following each control sequence. +. +.It Fl f Ar fg +Set the default foreground color. +The default value is 7 (white). +. +.It Fl h Ar rows +Set the terminal height. +The default value is 24. +. +.It Fl n +Do not show the cursor. +. +.It Fl s +Set the terminal size +from the current terminal size. +. +.It Fl w Ar cols +Set the terminal width. +The default value is 80. +.El +. +.Sh EXAMPLES +.Dl ptee htop | shotty -s > htop.html +. +.Sh SEE ALSO +.Xr ptee 1 , +.Xr scheme 1 diff --git a/bin/man1/sup.1 b/bin/man1/sup.1 new file mode 100644 index 00000000..4b266e06 --- /dev/null +++ b/bin/man1/sup.1 @@ -0,0 +1,48 @@ +.Dd February 21, 2021 +.Dt SUP 1 +.Os +. +.Sh NAME +.Nm sup +.Nd single-use password +. +.Sh SYNOPSIS +.Nm +.Ar service +.Op Ar email +. +.Sh DESCRIPTION +The +.Nm +utility +sets a random single-use password +for a service using the +.Dq forgot password +or +.Dq password reset +flow. +The password is copied to the clipboard +and the service login page is opened. +For passwordless services +with email-based authentication, +the emailed login link is opened. +. +.Pp +The following services are supported: +.Cm asciinema , +.Cm discogs , +.Cm freebsdbugzilla , +.Cm liberapay , +.Cm lobsters , +.Cm tildenews . +. +.Pp +The +.Nm +utility requires +.Xr curl 1 , +.Xr git-fetch-email 1 , +.Xr openssl 1 , +.Xr pbcopy 1 +and +.Xr open 1 . diff --git a/bin/man1/title.1 b/bin/man1/title.1 new file mode 100644 index 00000000..43ecc5e2 --- /dev/null +++ b/bin/man1/title.1 @@ -0,0 +1,51 @@ +.Dd September 10, 2019 +.Dt TITLE 1 +.Os +. +.Sh NAME +.Nm title +.Nd page titles +. +.Sh SYNOPSIS +.Nm +.Op Fl v +.Op Fl x Ar pattern +.Op Ar url +. +.Sh DESCRIPTION +.Nm +fetches HTML page titles +over HTTP and HTTPS. +.Nm +scans standard input for URLs +and writes their titles to standard output. +If a +.Ar url +argument is given, +.Nm +exits after fetching its title. +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl x Ar pattern +Exclude URLs matching +.Ar pattern , +which is a modern regular expression. +See +.Xr re_format 7 . +.It Fl v +Enable +.Xr libcurl 3 +verbose output. +.El +. +.Sh EXAMPLES +.Bd -literal -offset indent +mkfifo snarf titles +relay irc.example.org 6697 snarf '#example' <>titles >snarf +title <snarf >titles +.Ed +. +.Sh SEE ALSO +.Xr relay 1 diff --git a/bin/man1/typer.1 b/bin/man1/typer.1 new file mode 100644 index 00000000..dd1108d1 --- /dev/null +++ b/bin/man1/typer.1 @@ -0,0 +1,74 @@ +.Dd April 28, 2021 +.Dt TYPER 1 +.Os +. +.Sh NAME +.Nm typer +.Nd type all day +. +.Sh SYNOPSIS +.Nm +.Op Fl CPRv +.Op Fl c Ar cert +.Op Fl n Ar nick +.Op Fl p Ar port +.Op Fl u Ar user +.Ar host +.Ar chan +. +.Sh DESCRIPTION +.Nm +is an IRC bot +that types all day long. +The arguments are as follows: +.Bl -tag -width Ds +.It Fl C +Copy +.Nm . +Type whenever anyone else is typing. +.It Fl P +Request the +.Sy causal.agency/passive +vendor-specific capability. +.It Fl R +Reverse +.Nm . +Send other users' typing indicators +as regular messages for all to see. +.It Fl c Ar cert +Use the TLS client certificate +and private key loaded from +.Ar cert . +.It Fl n Ar nick +Set the nickname. +The default is +.Nm . +.It Fl p Ar port +Connect to +.Ar port . +The default is 6697. +.It Fl u Ar user +Set the username. +The default is +.Nm . +.It Fl v +Log IRC protocol to standard error. +.It Ar host +Connect to +.Ar host . +.It Ar chan +Type in the channel +.Ar chan . +.El +. +.Sh STANDARDS +.Bl -item +.It +.Rs +.%A MuffinMedic +.%A James Wheare +.%T IRCv3 typing client tag +.%I IRCv3 Working Group +.%U https://ircv3.net/specs/client-tags/typing +.Re +.El diff --git a/bin/man1/up.1 b/bin/man1/up.1 new file mode 100644 index 00000000..189020de --- /dev/null +++ b/bin/man1/up.1 @@ -0,0 +1,80 @@ +.Dd February 7, 2021 +.Dt UP 1 +.Os +. +.Sh NAME +.Nm up +.Nd upload file +. +.Sh SYNOPSIS +.Nm +.Op Fl h +.Op Ar file +. +.Nm +.Fl c | t +.Ar command ... +. +.Nm +.Fl s +. +.Sh DESCRIPTION +.Nm +uploads a file +to temp.causal.agency with +.Xr scp 1 . +If no +.Ar file +is provided, +standard input is read +and uploaded as text. +. +.Pp +The destination file name +is chosen using +.Xr date 1 +and +.Xr openssl 1 +.Cm rand . +The URL of the uploaded file is printed +and copied to the pasteboard with +.Xr pbcopy 1 +if available. +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl c +Run a command +to produce a text file for upload. +.It Fl h +Use +.Xr hilex 1 +to produce an HTML file for upload. +.It Fl s +Use +.Xr screencapture 1 +or +.Xr scrot 1 +to produce a PNG file for upload. +The file is optimized by +.Xr pngo 1 +if available. +.It Fl t +Run a command with +.Xr ptee 1 +and +.Xr shotty 1 +to produce an HTML file for upload. +.El +. +.Pp +Any arguments after +.Ql \-\- +are passed to +.Xr hilex 1 +and +.Xr screencapture 1 +or +.Xr scrot 1 , +respectively. diff --git a/bin/man1/when.1 b/bin/man1/when.1 new file mode 100644 index 00000000..0b473573 --- /dev/null +++ b/bin/man1/when.1 @@ -0,0 +1,76 @@ +.Dd July 24, 2019 +.Dt WHEN 1 +.Os +. +.Sh NAME +.Nm when +.Nd date calculator +. +.Sh SYNOPSIS +.Nm +.Op Ar expr +. +.Sh DESCRIPTION +.Nm +is a date calculator. +If no +.Ar expr +is given, +expressions are read +from standard input. +. +.Pp +The grammar is as follows: +.Bl -tag -width Ds +.It Sy \&. +Today's date. +. +.It Ar month Ar date Op Ar year +A full date, +or a date in the current year. +.Ar month +must be at least three letters. +. +.It Ar day +A day of the week +in the current week. +.Ar day +must be at least three letters. +. +.It Sy < Ar date +The date one week before. +. +.It Sy > Ar date +The date one week after. +. +.It Ar date Sy + Ar interval +The date after some interval. +. +.It Ar date Sy - Ar interval +The date before some interval. +. +.It Ar date Sy - Ar date +The interval between two dates. +. +.It Ar num Sy d +A number of days. +. +.It Ar num Sy w +A number of weeks. +. +.It Ar num Sy m +A number of months. +. +.It Ar num Sy y +A number of years. +.El +. +.Sh EXAMPLES +.Bl -tag -width "Dec 25 - ." +.It Ic Dec 25 - \&. +How long until Christmas. +.It Ic >Fri +The date next Friday. +.It Ic \&. + 2w +Your last day at work. +.El diff --git a/bin/man1/xx.1 b/bin/man1/xx.1 new file mode 100644 index 00000000..d38789a7 --- /dev/null +++ b/bin/man1/xx.1 @@ -0,0 +1,68 @@ +.Dd September 7, 2018 +.Dt XX 1 +.Os +. +.Sh NAME +.Nm xx +.Nd hexdump +. +.Sh SYNOPSIS +.Nm +.Op Fl arsz +.Op Fl c Ar cols +.Op Fl g Ar group +.Op Fl p Ar count +.Op Ar file +. +.Sh DESCRIPTION +.Nm +dumps the contents of a +.Ar file +or standard input +in hexadecimal format. +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl a +Toggle ASCII output. +. +.It Fl c Ar cols +Output +.Ar cols +bytes per line. +The default +.Ar cols +is 16. +. +.It Fl g Ar group +Output extra space after every +.Ar group +bytes. +The default +.Ar group +is 8. +. +.It Fl p Ar count +Output a blank line after every +.Ar count +bytes. +.Ar count +must be a multiple of +.Ar cols . +. +.It Fl r +Reverse hexdump. +Read hexadecimal input +and write byte output. +. +.It Fl s +Toggle offset output. +. +.It Fl z +Skip output of lines containing only zeros. +.El +. +.Sh SEE ALSO +.Xr hexdump 1 , +.Xr xxd 1 diff --git a/bin/man3/png.3 b/bin/man3/png.3 new file mode 100644 index 00000000..accffbd7 --- /dev/null +++ b/bin/man3/png.3 @@ -0,0 +1,90 @@ +.Dd July 25, 2019 +.Dt PNG 3 +.Os +. +.Sh NAME +.Nm png +.Nd basic PNG output +. +.Sh SYNOPSIS +.In png.h +. +.Ft void +.Fo pngHead +.Fa "FILE *file" +.Fa "uint32_t width" +.Fa "uint32_t height" +.Fa "uint8_t depth" +.Fa "uint8_t color" +.Fc +. +.Ft void +.Fn pngPalette "FILE *file" "const uint8_t *pal" "uint32_t len" +. +.Ft void +.Fn pngData "FILE *file" "const uint8_t *data" "uint32_t len" +. +.Ft void +.Fn pngTail "FILE *file" +. +.Sh DESCRIPTION +The +.Fn pngHead +function +writes the +.Sy IHDR +chunk to +.Fa file . +The +.Fa color +parameter can be one of +.Dv PNGGrayscale , +.Dv PNGTruecolor +optionally +.Em or Ns 'ed +with +.Dv PNGAlpha , +or +.Dv PNGIndexed . +. +.Pp +The +.Fn pngPalette +function +writes the +.Sy PLTE +chunk to +.Fa file . +. +.Pp +The +.Fn pngData +function +writes the +.Sy IDAT +chunk to +.Fa file +without compression. +The constants +.Dv PNGNone , +.Dv PNGSub , +.Dv PNGUp , +.Dv PNGAverage , +.Dv PNGPaeth +are defined +for use in PNG data. +. +.Pp +The +.Fn pngTail +function +writes the +.Sy IEND +chunk to +.Fa file . +. +.Sh ERRORS +Any errors from writing to +.Fa file +are handled by calling +.Xr err 3 . diff --git a/bin/man6/freecell.6 b/bin/man6/freecell.6 new file mode 100644 index 00000000..0e485a16 --- /dev/null +++ b/bin/man6/freecell.6 @@ -0,0 +1,50 @@ +.Dd April 17, 2021 +.Dt FREECELL 6 +.Os +. +.Sh NAME +.Nm freecell +.Nd patience game +. +.Sh SYNOPSIS +.Nm +.Op Fl d Ar delay +.Op Fl n Ar game +. +.Sh DESCRIPTION +.Nm +is a terminal FreeCell patience game. +The arguments are as follows: +.Bl -tag -width Ds +.It Fl d Ar delay +Set the delay in milliseconds +between queued moves. +The default is 50. +.It Fl n Ar game +Select the game number to play. +.El +. +.Pp +Moves are performed +by typing a sequence of two keys. +To automatically move a card +to a free cell, +type the same key twice. +The keys are as follows: +.Bl -tag -width Ds +.It Ic Escape +Cancel a pending move. +.It Ic u , Backspace +Undo the previous move. +.It Ic 1 , 2 , 3 , 4 +Select the cells. +.It Ic q , w , e , r , a , s , d , f +Select the tableau cascades. +.It Ic _ , Space +Manually move +the selected card +to the foundations. +.It Ic Shift +Move a single card +to an empty tableau cascade. +.El diff --git a/bin/mdoc.l b/bin/mdoc.l new file mode 100644 index 00000000..a31b6a2e --- /dev/null +++ b/bin/mdoc.l @@ -0,0 +1,65 @@ +/* Copyright (C) 2020 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +%option prefix="mdoc" +%option noyywrap + +%{ +#include "hilex.h" +%} + +%s MacroLine + +%% + +[[:blank:]]+ { return Normal; } + +^"." { + BEGIN(MacroLine); + return Keyword; +} + +^".\\\"".* { return Comment; } + +<MacroLine>{ + "\n" { + BEGIN(0); + return Normal; + } + + %[ABCDIJNOPQRTUV]|A[cdnopqrt]|B[cdfkloqtx]|Br[coq]|Bsx|C[dm]|D[1bcdloqtvx] | + E[cdfklmnorsvx]|F[acdlnortx]|Hf|I[cnt]|L[bikp]|M[st]|N[dmosx]|O[copstx] | + P[acfopq]|Q[cloq]|R[esv]|S[chmoqstxy]|T[an]|U[dx]|V[at]|X[cor] { + return Keyword; + } + + "\""([^""]|"\\\"")*"\"" { return String; } +} + +"\\"(.|"("..|"["[^]]*"]") { return String; } + +[^.\\""[:space:]]+ { return Normal; } + +.|\n { return Normal; } + +%{ + (void)yyunput; + (void)input; +%} + +%% + +const struct Lexer LexMdoc = { yylex, &yyin, &yytext }; diff --git a/bin/modem.c b/bin/modem.c new file mode 100644 index 00000000..2133ae08 --- /dev/null +++ b/bin/modem.c @@ -0,0 +1,102 @@ +/* Copyright (C) 2018 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <err.h> +#include <poll.h> +#include <stdlib.h> +#include <sys/ioctl.h> +#include <sys/wait.h> +#include <sysexits.h> +#include <termios.h> +#include <unistd.h> + +#if defined __FreeBSD__ +#include <libutil.h> +#elif defined __linux__ +#include <pty.h> +#else +#include <util.h> +#endif + +typedef unsigned uint; +typedef unsigned char byte; + +static struct termios saveTerm; +static void restoreTerm(void) { + tcsetattr(STDIN_FILENO, TCSADRAIN, &saveTerm); +} + +int main(int argc, char *argv[]) { + int error; + + uint baudRate = 19200; + for (int opt; 0 < (opt = getopt(argc, argv, "r:"));) { + switch (opt) { + break; case 'r': baudRate = strtoul(optarg, NULL, 10); + break; default: return EX_USAGE; + } + } + if (argc - optind < 1) return EX_USAGE; + + error = tcgetattr(STDIN_FILENO, &saveTerm); + if (error) err(EX_IOERR, "tcgetattr"); + atexit(restoreTerm); + + struct termios raw = saveTerm; + cfmakeraw(&raw); + error = tcsetattr(STDIN_FILENO, TCSADRAIN, &raw); + if (error) err(EX_IOERR, "tcsetattr"); + + struct winsize window; + error = ioctl(STDIN_FILENO, TIOCGWINSZ, &window); + if (error) err(EX_IOERR, "TIOCGWINSZ"); + + int pty; + pid_t pid = forkpty(&pty, NULL, NULL, &window); + if (pid < 0) err(EX_OSERR, "forkpty"); + + if (!pid) { + execvp(argv[optind], &argv[optind]); + err(EX_NOINPUT, "%s", argv[optind]); + } + + byte c; + struct pollfd fds[2] = { + { .events = POLLIN, .fd = STDIN_FILENO }, + { .events = POLLIN, .fd = pty }, + }; + while (usleep(8 * 1000000 / baudRate), 0 < poll(fds, 2, -1)) { + if (fds[0].revents) { + ssize_t size = read(STDIN_FILENO, &c, 1); + if (size < 0) err(EX_IOERR, "read(%d)", STDIN_FILENO); + size = write(pty, &c, 1); + if (size < 0) err(EX_IOERR, "write(%d)", pty); + } + + if (fds[1].revents) { + ssize_t size = read(pty, &c, 1); + if (size < 0) err(EX_IOERR, "read(%d)", pty); + if (!size) break; + size = write(STDOUT_FILENO, &c, 1); + if (size < 0) err(EX_IOERR, "write(%d)", STDOUT_FILENO); + } + } + + int status; + pid_t dead = waitpid(pid, &status, 0); + if (dead < 0) err(EX_OSERR, "waitpid"); + return WIFEXITED(status) ? WEXITSTATUS(status) : EX_SOFTWARE; +} diff --git a/bin/mtags.c b/bin/mtags.c new file mode 100644 index 00000000..1ebfbac5 --- /dev/null +++ b/bin/mtags.c @@ -0,0 +1,99 @@ +/* Copyright (C) 2021 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <assert.h> +#include <err.h> +#include <regex.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sysexits.h> +#include <unistd.h> + +static void escape(FILE *file, const char *str, size_t len) { + for (size_t i = 0; i < len; ++i) { + if (str[i] == '\\' || str[i] == '/') { + putc('\\', file); + } + putc(str[i], file); + } +} + +int main(int argc, char *argv[]) { + bool append = false; + const char *path = "tags"; + for (int opt; 0 < (opt = getopt(argc, argv, "af:"));) { + switch (opt) { + break; case 'a': append = true; + break; case 'f': path = optarg; + break; default: return EX_USAGE; + } + } + + FILE *tags = fopen(path, (append ? "a" : "w")); + if (!tags) err(EX_CANTCREAT, "%s", path); + + regex_t makeFile, makeLine; + regex_t mdocFile, mdocLine; + regex_t shFile, shLine; + int error = 0 + || regcomp(&makeFile, "(^|/)Makefile|[.]mk$", REG_EXTENDED | REG_NOSUB) + || regcomp( + &makeLine, + "^([.][^:$A-Z][^:$[:space:]]*|[^.:$][^:$[:space:]]*):", + REG_EXTENDED + ) + || regcomp(&mdocFile, "[.][1-9]$", REG_EXTENDED | REG_NOSUB) + || regcomp(&mdocLine, "^[.]S[hs] ([^\t\n]+)", REG_EXTENDED) + || regcomp( + &shFile, "(^|/)[.](profile|shrc)|[.]sh$", REG_EXTENDED | REG_NOSUB + ) + || regcomp(&shLine, "^([_[:alnum:]]+)[[:blank:]]*[(][)]", REG_EXTENDED); + assert(!error); + + size_t cap = 0; + char *buf = NULL; + for (int i = optind; i < argc; ++i) { + const regex_t *regex; + if (!regexec(&makeFile, argv[i], 0, NULL, 0)) { + regex = &makeLine; + } else if (!regexec(&mdocFile, argv[i], 0, NULL, 0)) { + regex = &mdocLine; + } else if (!regexec(&shFile, argv[i], 0, NULL, 0)) { + regex = &shLine; + } else { + warnx("skipping unknown file type %s", argv[i]); + continue; + } + + FILE *file = fopen(argv[i], "r"); + if (!file) err(EX_NOINPUT, "%s", argv[i]); + + while (0 < getline(&buf, &cap, file)) { + regmatch_t match[2]; + if (regexec(regex, buf, 2, match, 0)) continue; + fprintf( + tags, "%.*s\t%s\t/^", + (int)(match[1].rm_eo - match[1].rm_so), &buf[match[1].rm_so], + argv[i] + ); + escape(tags, buf, match[0].rm_eo); + fprintf(tags, "/\n"); + } + fclose(file); + } +} diff --git a/bin/nudge.c b/bin/nudge.c new file mode 100644 index 00000000..108d2459 --- /dev/null +++ b/bin/nudge.c @@ -0,0 +1,78 @@ +/* Copyright (C) 2020 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <err.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <sysexits.h> +#include <termios.h> +#include <unistd.h> + +static int shake = 10; +static int delay = 20000; +static int count = 2; + +static void move(int tty, int x, int y) { + dprintf(tty, "\33[3;%d;%dt", x, y); + usleep(delay); +} + +int main(int argc, char *argv[]) { + const char *path = "/dev/tty"; + for (int opt; 0 < (opt = getopt(argc, argv, "f:n:s:t:"));) { + switch (opt) { + break; case 'f': path = optarg; + break; case 'n': count = atoi(optarg); + break; case 's': shake = atoi(optarg); + break; case 't': delay = atoi(optarg) * 1000; + break; default: return EX_USAGE; + } + } + + int tty = open(path, O_RDWR); + if (tty < 0) err(EX_OSFILE, "%s", path); + + struct termios save; + int error = tcgetattr(tty, &save); + if (error) err(EX_IOERR, "tcgetattr"); + + struct termios raw = save; + cfmakeraw(&raw); + error = tcsetattr(tty, TCSAFLUSH, &raw); + if (error) err(EX_IOERR, "tcsetattr"); + + char buf[256]; + dprintf(tty, "\33[13t"); + ssize_t len = read(tty, buf, sizeof(buf) - 1); + buf[(len < 0 ? 0 : len)] = '\0'; + + int x, y; + int n = sscanf(buf, "\33[3;%d;%dt", &x, &y); + + error = tcsetattr(tty, TCSANOW, &save); + if (error) err(EX_IOERR, "tcsetattr"); + if (n < 2) return EX_CONFIG; + + dprintf(tty, "\33[5t"); + for (int i = 0; i < count; ++i) { + move(tty, x - shake, y); + move(tty, x, y + shake); + move(tty, x + shake, y); + move(tty, x, y - shake); + move(tty, x, y); + } +} diff --git a/bin/order.y b/bin/order.y new file mode 100644 index 00000000..c2e87971 --- /dev/null +++ b/bin/order.y @@ -0,0 +1,195 @@ +/* Copyright (C) 2019 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +%{ + +#include <ctype.h> +#include <err.h> +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sysexits.h> + +#define YYSTYPE char * + +static char *fmt(const char *format, ...) { + char *str = NULL; + va_list ap; + va_start(ap, format); + vasprintf(&str, format, ap); + va_end(ap); + if (!str) err(EX_OSERR, "vasprintf"); + return str; +} + +static int yylex(void); +static void yyerror(const char *str); + +%} + +%token Ident + +%left ',' +%right '=' MulAss DivAss ModAss AddAss SubAss ShlAss ShrAss AndAss XorAss OrAss +%right '?' ':' +%left Or +%left And +%left '|' +%left '^' +%left '&' +%left Eq Ne +%left '<' Le '>' Ge +%left Shl Shr +%left '+' '-' +%left '*' '/' '%' +%right '!' '~' Inc Dec Sizeof +%left '(' ')' '[' ']' Arr '.' + +%% + +start: + expr { printf("%s\n", $1); } + ; + +expr: + Ident + | '(' expr ')' { $$ = $2; } + | expr '[' expr ']' { $$ = fmt("(%s[%s])", $1, $3); } + | expr Arr Ident { $$ = fmt("(%s->%s)", $1, $3); } + | expr '.' Ident { $$ = fmt("(%s.%s)", $1, $3); } + | '!' expr { $$ = fmt("(!%s)", $2); } + | '~' expr { $$ = fmt("(~%s)", $2); } + | Inc expr { $$ = fmt("(++%s)", $2); } + | Dec expr { $$ = fmt("(--%s)", $2); } + | expr Inc { $$ = fmt("(%s++)", $1); } + | expr Dec { $$ = fmt("(%s--)", $1); } + | '+' expr %prec '!' { $$ = fmt("(+%s)", $2); } + | '-' expr %prec '!' { $$ = fmt("(-%s)", $2); } + | '*' expr %prec '!' { $$ = fmt("(*%s)", $2); } + | '&' expr %prec '!' { $$ = fmt("(&%s)", $2); } + | Sizeof expr { $$ = fmt("(sizeof %s)", $2); } + | expr '*' expr { $$ = fmt("(%s * %s)", $1, $3); } + | expr '/' expr { $$ = fmt("(%s / %s)", $1, $3); } + | expr '%' expr { $$ = fmt("(%s %% %s)", $1, $3); } + | expr '+' expr { $$ = fmt("(%s + %s)", $1, $3); } + | expr '-' expr { $$ = fmt("(%s - %s)", $1, $3); } + | expr Shl expr { $$ = fmt("(%s << %s)", $1, $3); } + | expr Shr expr { $$ = fmt("(%s >> %s)", $1, $3); } + | expr '<' expr { $$ = fmt("(%s < %s)", $1, $3); } + | expr Le expr { $$ = fmt("(%s <= %s)", $1, $3); } + | expr '>' expr { $$ = fmt("(%s > %s)", $1, $3); } + | expr Ge expr { $$ = fmt("(%s >= %s)", $1, $3); } + | expr Eq expr { $$ = fmt("(%s == %s)", $1, $3); } + | expr Ne expr { $$ = fmt("(%s != %s)", $1, $3); } + | expr '&' expr { $$ = fmt("(%s & %s)", $1, $3); } + | expr '^' expr { $$ = fmt("(%s ^ %s)", $1, $3); } + | expr '|' expr { $$ = fmt("(%s | %s)", $1, $3); } + | expr And expr { $$ = fmt("(%s && %s)", $1, $3); } + | expr Or expr { $$ = fmt("(%s || %s)", $1, $3); } + | expr '?' expr ':' expr { $$ = fmt("(%s ? %s : %s)", $1, $3, $5); } + | expr ass expr %prec '=' { $$ = fmt("(%s %s %s)", $1, $2, $3); } + | expr ',' expr { $$ = fmt("(%s, %s)", $1, $3); } + ; + +ass: + '=' { $$ = "="; } + | MulAss { $$ = "*="; } + | DivAss { $$ = "/="; } + | ModAss { $$ = "%="; } + | AddAss { $$ = "+="; } + | SubAss { $$ = "-="; } + | ShlAss { $$ = "<<="; } + | ShrAss { $$ = ">>="; } + | AndAss { $$ = "&="; } + | XorAss { $$ = "^="; } + | OrAss { $$ = "|="; } + ; + +%% + +#define T(a, b) ((int)(a) << 8 | (int)(b)) + +static FILE *in; + +static int yylex(void) { + char ch; + while (isspace(ch = getc(in))); + + if (isalnum(ch)) { + char ident[64] = { ch, '\0' }; + for (size_t i = 1; i < sizeof(ident) - 1; ++i) { + ch = getc(in); + if (!isalnum(ch) && ch != '_') break; + ident[i] = ch; + } + ungetc(ch, in); + if (!strcmp(ident, "sizeof")) return Sizeof; + yylval = fmt("%s", ident); + return Ident; + } + + char ne = getc(in); + switch (T(ch, ne)) { + case T('-', '>'): return Arr; + case T('+', '+'): return Inc; + case T('-', '-'): return Dec; + case T('<', '='): return Le; + case T('>', '='): return Ge; + case T('=', '='): return Eq; + case T('!', '='): return Ne; + case T('&', '&'): return And; + case T('|', '|'): return Or; + case T('*', '='): return MulAss; + case T('/', '='): return DivAss; + case T('%', '='): return ModAss; + case T('+', '='): return AddAss; + case T('-', '='): return SubAss; + case T('&', '='): return AndAss; + case T('^', '='): return XorAss; + case T('|', '='): return OrAss; + case T('<', '<'): { + if ('=' == (ne = getc(in))) return ShlAss; + ungetc(ne, in); + return Shl; + } + case T('>', '>'): { + if ('=' == (ne = getc(in))) return ShrAss; + ungetc(ne, in); + return Shr; + } + default: { + ungetc(ne, in); + return ch; + } + } +} + +static void yyerror(const char *str) { + errx(EX_DATAERR, "%s", str); +} + +int main(int argc, char *argv[]) { + for (int i = 1; i < argc; ++i) { + in = fmemopen(argv[i], strlen(argv[i]), "r"); + if (!in) err(EX_OSERR, "fmemopen"); + yyparse(); + fclose(in); + } + if (argc > 1) return EX_OK; + in = stdin; + yyparse(); +} diff --git a/bin/pbd.c b/bin/pbd.c new file mode 100644 index 00000000..2fd401ae --- /dev/null +++ b/bin/pbd.c @@ -0,0 +1,151 @@ +/* Copyright (C) 2017 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <arpa/inet.h> +#include <err.h> +#include <fcntl.h> +#include <netinet/in.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/socket.h> +#include <sys/wait.h> +#include <sysexits.h> +#include <unistd.h> + +typedef unsigned char byte; + +static void spawn(const char *cmd, const char *arg, int dest, int src) { + pid_t pid = fork(); + if (pid < 0) err(EX_OSERR, "fork"); + + if (pid) { + int status; + pid_t dead = waitpid(pid, &status, 0); + if (dead < 0) err(EX_OSERR, "waitpid(%d)", pid); + if (status) warnx("%s: status %d", cmd, status); + + } else { + int fd = dup2(src, dest); + if (fd < 0) err(EX_OSERR, "dup2"); + + execlp(cmd, cmd, arg, NULL); + err(EX_UNAVAILABLE, "%s", cmd); + } +} + +static int pbd(void) { + int error; + + int server = socket(PF_INET, SOCK_STREAM, 0); + if (server < 0) err(EX_OSERR, "socket"); + + error = fcntl(server, F_SETFD, FD_CLOEXEC); + if (error) err(EX_IOERR, "fcntl"); + + struct sockaddr_in addr = { + .sin_family = AF_INET, + .sin_port = htons(7062), + .sin_addr = { .s_addr = htonl(0x7F000001) }, + }; + error = bind(server, (struct sockaddr *)&addr, sizeof(addr)); + if (error) err(EX_UNAVAILABLE, "bind"); + + error = listen(server, 0); + if (error) err(EX_UNAVAILABLE, "listen"); + + for (;;) { + int client = accept(server, NULL, NULL); + if (client < 0) err(EX_IOERR, "accept"); + + error = fcntl(client, F_SETFD, FD_CLOEXEC); + if (error) err(EX_IOERR, "fcntl"); + + char c = 0; + ssize_t size = read(client, &c, 1); + if (size < 0) warn("read"); + + switch (c) { + break; case 'p': spawn("pbpaste", NULL, STDOUT_FILENO, client); + break; case 'c': spawn("pbcopy", NULL, STDIN_FILENO, client); + break; case 'o': spawn("xargs", "open", STDIN_FILENO, client); + } + + close(client); + } +} + +static int pbdClient(char c) { + int client = socket(PF_INET, SOCK_STREAM, 0); + if (client < 0) err(EX_OSERR, "socket"); + + struct sockaddr_in addr = { + .sin_family = AF_INET, + .sin_port = htons(7062), + .sin_addr = { .s_addr = htonl(0x7F000001) }, + }; + int error = connect(client, (struct sockaddr *)&addr, sizeof(addr)); + if (error) err(EX_UNAVAILABLE, "connect"); + + ssize_t size = write(client, &c, 1); + if (size < 0) err(EX_IOERR, "write"); + + return client; +} + +static void copy(int out, int in) { + byte buf[4096]; + ssize_t readSize; + while (0 < (readSize = read(in, buf, sizeof(buf)))) { + ssize_t writeSize = write(out, buf, readSize); + if (writeSize < 0) err(EX_IOERR, "write(%d)", out); + } + if (readSize < 0) err(EX_IOERR, "read(%d)", in); +} + +static int pbcopy(void) { + int client = pbdClient('c'); + copy(client, STDIN_FILENO); + return EX_OK; +} + +static int pbpaste(void) { + int client = pbdClient('p'); + copy(STDOUT_FILENO, client); + return EX_OK; +} + +static int open1(const char *url) { + if (!url) return EX_USAGE; + int client = pbdClient('o'); + ssize_t size = write(client, url, strlen(url)); + if (size < 0) err(EX_IOERR, "write"); + return EX_OK; +} + +int main(int argc, char *argv[]) { + for (int opt; 0 < (opt = getopt(argc, argv, "co:ps"));) { + switch (opt) { + case 'c': return pbcopy(); + case 'o': return open1(optarg); + case 'p': return pbpaste(); + case 's': return pbd(); + default: return EX_USAGE; + } + } + return pbd(); +} diff --git a/bin/png.h b/bin/png.h new file mode 100644 index 00000000..15b6d13d --- /dev/null +++ b/bin/png.h @@ -0,0 +1,108 @@ +/* Copyright (C) 2018 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <err.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <sysexits.h> + +static inline uint32_t pngCRCTable(uint8_t n) { + static uint32_t table[256]; + if (table[1]) return table[n]; + for (int i = 0; i < 256; ++i) { + table[i] = i; + for (int j = 0; j < 8; ++j) { + table[i] = (table[i] >> 1) ^ (table[i] & 1 ? 0xEDB88320 : 0); + } + } + return table[n]; +} + +static uint32_t pngCRC; + +static inline void pngWrite(FILE *file, const uint8_t *ptr, uint32_t len) { + if (!fwrite(ptr, len, 1, file)) err(EX_IOERR, "pngWrite"); + for (uint32_t i = 0; i < len; ++i) { + pngCRC = pngCRCTable(pngCRC ^ ptr[i]) ^ (pngCRC >> 8); + } +} +static inline void pngInt32(FILE *file, uint32_t n) { + pngWrite(file, (uint8_t []) { n >> 24, n >> 16, n >> 8, n }, 4); +} +static inline void pngChunk(FILE *file, char type[static 4], uint32_t len) { + pngInt32(file, len); + pngCRC = ~0; + pngWrite(file, (uint8_t *)type, 4); +} + +enum { + PNGGrayscale, + PNGTruecolor = 2, + PNGIndexed, + PNGAlpha, +}; + +static inline void pngHead( + FILE *file, uint32_t width, uint32_t height, uint8_t depth, uint8_t color +) { + pngWrite(file, (uint8_t *)"\x89PNG\r\n\x1A\n", 8); + pngChunk(file, "IHDR", 13); + pngInt32(file, width); + pngInt32(file, height); + pngWrite(file, &depth, 1); + pngWrite(file, &color, 1); + pngWrite(file, (uint8_t []) { 0, 0, 0 }, 3); + pngInt32(file, ~pngCRC); +} + +static inline void pngPalette(FILE *file, const uint8_t *pal, uint32_t len) { + pngChunk(file, "PLTE", len); + pngWrite(file, pal, len); + pngInt32(file, ~pngCRC); +} + +enum { + PNGNone, + PNGSub, + PNGUp, + PNGAverage, + PNGPaeth, +}; + +static inline void pngData(FILE *file, const uint8_t *data, uint32_t len) { + uint32_t adler1 = 1, adler2 = 0; + for (uint32_t i = 0; i < len; ++i) { + adler1 = (adler1 + data[i]) % 65521; + adler2 = (adler1 + adler2) % 65521; + } + uint32_t zlen = 2 + 5 * ((len + 0xFFFE) / 0xFFFF) + len + 4; + pngChunk(file, "IDAT", zlen); + pngWrite(file, (uint8_t []) { 0x08, 0x1D }, 2); + for (; len > 0xFFFF; data += 0xFFFF, len -= 0xFFFF) { + pngWrite(file, (uint8_t []) { 0x00, 0xFF, 0xFF, 0x00, 0x00 }, 5); + pngWrite(file, data, 0xFFFF); + } + pngWrite(file, (uint8_t []) { 0x01, len, len >> 8, ~len, ~len >> 8 }, 5); + pngWrite(file, data, len); + pngInt32(file, adler2 << 16 | adler1); + pngInt32(file, ~pngCRC); +} + +static inline void pngTail(FILE *file) { + pngChunk(file, "IEND", 0); + pngInt32(file, ~pngCRC); +} diff --git a/bin/pngo.c b/bin/pngo.c new file mode 100644 index 00000000..322cb1ba --- /dev/null +++ b/bin/pngo.c @@ -0,0 +1,812 @@ +/* Copyright (C) 2018 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <arpa/inet.h> +#include <err.h> +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sysexits.h> +#include <unistd.h> +#include <zlib.h> + +#define PACKED __attribute__((packed)) +#define PAIR(a, b) ((uint16_t)(a) << 8 | (uint16_t)(b)) + +#define CRC_INIT (crc32(0, Z_NULL, 0)) + +static bool verbose; +static const char *path; +static FILE *file; +static uint32_t crc; + +static void readExpect(void *ptr, size_t size, const char *expect) { + fread(ptr, size, 1, file); + if (ferror(file)) err(EX_IOERR, "%s", path); + if (feof(file)) errx(EX_DATAERR, "%s: missing %s", path, expect); + crc = crc32(crc, ptr, size); +} + +static void writeExpect(const void *ptr, size_t size) { + fwrite(ptr, size, 1, file); + if (ferror(file)) err(EX_IOERR, "%s", path); + crc = crc32(crc, ptr, size); +} + +static const uint8_t Signature[8] = "\x89PNG\r\n\x1A\n"; + +static void readSignature(void) { + uint8_t signature[8]; + readExpect(signature, 8, "signature"); + if (0 != memcmp(signature, Signature, 8)) { + errx(EX_DATAERR, "%s: invalid signature", path); + } +} + +static void writeSignature(void) { + writeExpect(Signature, sizeof(Signature)); +} + +struct PACKED Chunk { + uint32_t size; + char type[4]; +}; + +static const char *typeStr(struct Chunk chunk) { + static char buf[5]; + memcpy(buf, chunk.type, 4); + return buf; +} + +static struct Chunk readChunk(void) { + struct Chunk chunk; + readExpect(&chunk, sizeof(chunk), "chunk"); + chunk.size = ntohl(chunk.size); + crc = crc32(CRC_INIT, (Byte *)chunk.type, sizeof(chunk.type)); + return chunk; +} + +static void writeChunk(struct Chunk chunk) { + chunk.size = htonl(chunk.size); + writeExpect(&chunk, sizeof(chunk)); + crc = crc32(CRC_INIT, (Byte *)chunk.type, sizeof(chunk.type)); +} + +static void readCrc(void) { + uint32_t expected = crc; + uint32_t found; + readExpect(&found, sizeof(found), "CRC32"); + found = ntohl(found); + if (found != expected) { + errx( + EX_DATAERR, "%s: expected CRC32 %08X, found %08X", + path, expected, found + ); + } +} + +static void writeCrc(void) { + uint32_t net = htonl(crc); + writeExpect(&net, sizeof(net)); +} + +static void skipChunk(struct Chunk chunk) { + if (!(chunk.type[0] & 0x20)) { + errx(EX_CONFIG, "%s: unsupported critical chunk %s", path, typeStr(chunk)); + } + uint8_t discard[4096]; + while (chunk.size > sizeof(discard)) { + readExpect(discard, sizeof(discard), "chunk data"); + chunk.size -= sizeof(discard); + } + if (chunk.size) readExpect(discard, chunk.size, "chunk data"); + readCrc(); +} + +static struct PACKED { + uint32_t width; + uint32_t height; + uint8_t depth; + enum PACKED { + Grayscale = 0, + Truecolor = 2, + Indexed = 3, + GrayscaleAlpha = 4, + TruecolorAlpha = 6, + } color; + enum PACKED { Deflate } compression; + enum PACKED { Adaptive } filter; + enum PACKED { Progressive, Adam7 } interlace; +} header; +_Static_assert(13 == sizeof(header), "header size"); + +static size_t pixelBits(void) { + switch (header.color) { + case Grayscale: return 1 * header.depth; + case Truecolor: return 3 * header.depth; + case Indexed: return 1 * header.depth; + case GrayscaleAlpha: return 2 * header.depth; + case TruecolorAlpha: return 4 * header.depth; + default: abort(); + } +} + +static size_t pixelSize(void) { + return (pixelBits() + 7) / 8; +} + +static size_t lineSize(void) { + return (header.width * pixelBits() + 7) / 8; +} + +static size_t dataSize(void) { + return (1 + lineSize()) * header.height; +} + +static const char *ColorStr[] = { + [Grayscale] = "grayscale", + [Truecolor] = "truecolor", + [Indexed] = "indexed", + [GrayscaleAlpha] = "grayscale alpha", + [TruecolorAlpha] = "truecolor alpha", +}; +static void printHeader(void) { + fprintf( + stderr, + "%s: %ux%u %hhu-bit %s\n", + path, + header.width, header.height, + header.depth, ColorStr[header.color] + ); +} + +static void readHeader(struct Chunk chunk) { + if (chunk.size != sizeof(header)) { + errx( + EX_DATAERR, "%s: expected IHDR size %zu, found %u", + path, sizeof(header), chunk.size + ); + } + readExpect(&header, sizeof(header), "header"); + readCrc(); + + header.width = ntohl(header.width); + header.height = ntohl(header.height); + + if (!header.width) errx(EX_DATAERR, "%s: invalid width 0", path); + if (!header.height) errx(EX_DATAERR, "%s: invalid height 0", path); + switch (PAIR(header.color, header.depth)) { + case PAIR(Grayscale, 1): + case PAIR(Grayscale, 2): + case PAIR(Grayscale, 4): + case PAIR(Grayscale, 8): + case PAIR(Grayscale, 16): + case PAIR(Truecolor, 8): + case PAIR(Truecolor, 16): + case PAIR(Indexed, 1): + case PAIR(Indexed, 2): + case PAIR(Indexed, 4): + case PAIR(Indexed, 8): + case PAIR(GrayscaleAlpha, 8): + case PAIR(GrayscaleAlpha, 16): + case PAIR(TruecolorAlpha, 8): + case PAIR(TruecolorAlpha, 16): + break; + default: + errx( + EX_DATAERR, "%s: invalid color type %hhu and bit depth %hhu", + path, header.color, header.depth + ); + } + if (header.compression != Deflate) { + errx( + EX_DATAERR, "%s: invalid compression method %hhu", + path, header.compression + ); + } + if (header.filter != Adaptive) { + errx(EX_DATAERR, "%s: invalid filter method %hhu", path, header.filter); + } + if (header.interlace > Adam7) { + errx(EX_DATAERR, "%s: invalid interlace method %hhu", path, header.interlace); + } + + if (verbose) printHeader(); +} + +static void writeHeader(void) { + if (verbose) printHeader(); + + struct Chunk ihdr = { .size = sizeof(header), .type = "IHDR" }; + writeChunk(ihdr); + header.width = htonl(header.width); + header.height = htonl(header.height); + writeExpect(&header, sizeof(header)); + writeCrc(); + + header.width = ntohl(header.width); + header.height = ntohl(header.height); +} + +static struct { + uint32_t len; + uint8_t entries[256][3]; +} palette; + +static struct { + uint32_t len; + uint8_t alpha[256]; +} trans; + +static void paletteClear(void) { + palette.len = 0; + trans.len = 0; +} + +static uint32_t paletteIndex(bool alpha, const uint8_t *rgba) { + uint32_t i; + for (i = 0; i < palette.len; ++i) { + if (alpha && i < trans.len && trans.alpha[i] != rgba[3]) continue; + if (0 == memcmp(palette.entries[i], rgba, 3)) break; + } + return i; +} + +static bool paletteAdd(bool alpha, const uint8_t *rgba) { + uint32_t i = paletteIndex(alpha, rgba); + if (i < palette.len) return true; + if (i == 256) return false; + memcpy(palette.entries[i], rgba, 3); + palette.len++; + if (alpha) { + trans.alpha[i] = rgba[3]; + trans.len++; + } + return true; +} + +static void transCompact(void) { + uint32_t i; + for (i = 0; i < trans.len; ++i) { + if (trans.alpha[i] == 0xFF) break; + } + if (i == trans.len) return; + + for (uint32_t j = i + 1; j < trans.len; ++j) { + if (trans.alpha[j] == 0xFF) continue; + + uint8_t alpha = trans.alpha[i]; + trans.alpha[i] = trans.alpha[j]; + trans.alpha[j] = alpha; + + uint8_t rgb[3]; + memcpy(rgb, palette.entries[i], 3); + memcpy(palette.entries[i], palette.entries[j], 3); + memcpy(palette.entries[j], rgb, 3); + + i++; + } + trans.len = i; +} + +static void readPalette(struct Chunk chunk) { + if (chunk.size % 3) { + errx(EX_DATAERR, "%s: PLTE size %u not divisible by 3", path, chunk.size); + } + + palette.len = chunk.size / 3; + if (palette.len > 256) { + errx(EX_DATAERR, "%s: PLTE length %u > 256", path, palette.len); + } + + readExpect(palette.entries, chunk.size, "palette data"); + readCrc(); + + if (verbose) fprintf(stderr, "%s: palette length %u\n", path, palette.len); +} + +static void writePalette(void) { + if (verbose) fprintf(stderr, "%s: palette length %u\n", path, palette.len); + struct Chunk plte = { .size = 3 * palette.len, .type = "PLTE" }; + writeChunk(plte); + writeExpect(palette.entries, plte.size); + writeCrc(); +} + +static void readTrans(struct Chunk chunk) { + trans.len = chunk.size; + if (trans.len > 256) { + errx(EX_DATAERR, "%s: tRNS length %u > 256", path, trans.len); + } + readExpect(trans.alpha, chunk.size, "transparency alpha"); + readCrc(); + if (verbose) fprintf(stderr, "%s: transparency length %u\n", path, trans.len); +} + +static void writeTrans(void) { + if (verbose) fprintf(stderr, "%s: transparency length %u\n", path, trans.len); + struct Chunk trns = { .size = trans.len, .type = "tRNS" }; + writeChunk(trns); + writeExpect(trans.alpha, trns.size); + writeCrc(); +} + +static uint8_t *data; + +static void allocData(void) { + data = malloc(dataSize()); + if (!data) err(EX_OSERR, "malloc(%zu)", dataSize()); +} + +static void readData(struct Chunk chunk) { + if (verbose) fprintf(stderr, "%s: data size %zu\n", path, dataSize()); + + struct z_stream_s stream = { .next_out = data, .avail_out = dataSize() }; + int error = inflateInit(&stream); + if (error != Z_OK) errx(EX_SOFTWARE, "%s: inflateInit: %s", path, stream.msg); + + for (;;) { + if (0 != memcmp(chunk.type, "IDAT", 4)) { + errx(EX_DATAERR, "%s: missing IDAT chunk", path); + } + + uint8_t *idat = malloc(chunk.size); + if (!idat) err(EX_OSERR, "malloc"); + + readExpect(idat, chunk.size, "image data"); + readCrc(); + + stream.next_in = idat; + stream.avail_in = chunk.size; + int error = inflate(&stream, Z_SYNC_FLUSH); + free(idat); + + if (error == Z_STREAM_END) break; + if (error != Z_OK) { + errx(EX_DATAERR, "%s: inflate: %s", path, stream.msg); + } + + chunk = readChunk(); + } + + inflateEnd(&stream); + if ((size_t)stream.total_out != dataSize()) { + errx( + EX_DATAERR, "%s: expected data size %zu, found %zu", + path, dataSize(), (size_t)stream.total_out + ); + } + + if (verbose) { + fprintf( + stderr, "%s: deflate size %zu\n", path, (size_t)stream.total_in + ); + } +} + +static void writeData(void) { + if (verbose) fprintf(stderr, "%s: data size %zu\n", path, dataSize()); + + uLong size = compressBound(dataSize()); + uint8_t *deflate = malloc(size); + if (!deflate) err(EX_OSERR, "malloc"); + + int error = compress2(deflate, &size, data, dataSize(), Z_BEST_COMPRESSION); + if (error != Z_OK) errx(EX_SOFTWARE, "%s: compress2: %d", path, error); + + struct Chunk idat = { .size = size, .type = "IDAT" }; + writeChunk(idat); + writeExpect(deflate, size); + writeCrc(); + + free(deflate); + + if (verbose) fprintf(stderr, "%s: deflate size %lu\n", path, size); +} + +static void writeEnd(void) { + struct Chunk iend = { .size = 0, .type = "IEND" }; + writeChunk(iend); + writeCrc(); +} + +enum PACKED Filter { + None, + Sub, + Up, + Average, + Paeth, + FilterCount, +}; + +struct Bytes { + uint8_t x; + uint8_t a; + uint8_t b; + uint8_t c; +}; + +static uint8_t paethPredictor(struct Bytes f) { + int32_t p = (int32_t)f.a + (int32_t)f.b - (int32_t)f.c; + int32_t pa = abs(p - (int32_t)f.a); + int32_t pb = abs(p - (int32_t)f.b); + int32_t pc = abs(p - (int32_t)f.c); + if (pa <= pb && pa <= pc) return f.a; + if (pb <= pc) return f.b; + return f.c; +} + +static uint8_t recon(enum Filter type, struct Bytes f) { + switch (type) { + case None: return f.x; + case Sub: return f.x + f.a; + case Up: return f.x + f.b; + case Average: return f.x + ((uint32_t)f.a + (uint32_t)f.b) / 2; + case Paeth: return f.x + paethPredictor(f); + default: abort(); + } +} + +static uint8_t filt(enum Filter type, struct Bytes f) { + switch (type) { + case None: return f.x; + case Sub: return f.x - f.a; + case Up: return f.x - f.b; + case Average: return f.x - ((uint32_t)f.a + (uint32_t)f.b) / 2; + case Paeth: return f.x - paethPredictor(f); + default: abort(); + } +} + +static struct Line { + enum Filter type; + uint8_t data[]; +} **lines; + +static void allocLines(void) { + lines = calloc(header.height, sizeof(*lines)); + if (!lines) err(EX_OSERR, "calloc(%u, %zu)", header.height, sizeof(*lines)); +} + +static void scanlines(void) { + size_t stride = 1 + lineSize(); + for (uint32_t y = 0; y < header.height; ++y) { + lines[y] = (struct Line *)&data[y * stride]; + if (lines[y]->type >= FilterCount) { + errx(EX_DATAERR, "%s: invalid filter type %hhu", path, lines[y]->type); + } + } +} + +static struct Bytes origBytes(uint32_t y, size_t i) { + bool a = (i >= pixelSize()), b = (y > 0), c = (a && b); + return (struct Bytes) { + .x = lines[y]->data[i], + .a = a ? lines[y]->data[i - pixelSize()] : 0, + .b = b ? lines[y - 1]->data[i] : 0, + .c = c ? lines[y - 1]->data[i - pixelSize()] : 0, + }; +} + +static void reconData(void) { + for (uint32_t y = 0; y < header.height; ++y) { + for (size_t i = 0; i < lineSize(); ++i) { + lines[y]->data[i] = + recon(lines[y]->type, origBytes(y, i)); + } + lines[y]->type = None; + } +} + +static void filterData(void) { + if (header.color == Indexed || header.depth < 8) return; + for (uint32_t y = header.height - 1; y < header.height; --y) { + uint8_t filter[FilterCount][lineSize()]; + uint32_t heuristic[FilterCount] = {0}; + enum Filter minType = None; + for (enum Filter type = None; type < FilterCount; ++type) { + for (size_t i = 0; i < lineSize(); ++i) { + filter[type][i] = filt(type, origBytes(y, i)); + heuristic[type] += abs((int8_t)filter[type][i]); + } + if (heuristic[type] < heuristic[minType]) minType = type; + } + lines[y]->type = minType; + memcpy(lines[y]->data, filter[minType], lineSize()); + } +} + +static void discardAlpha(void) { + if (header.color != GrayscaleAlpha && header.color != TruecolorAlpha) return; + size_t sampleSize = header.depth / 8; + size_t colorSize = pixelSize() - sampleSize; + for (uint32_t y = 0; y < header.height; ++y) { + for (uint32_t x = 0; x < header.width; ++x) { + for (size_t i = 0; i < sampleSize; ++i) { + if (lines[y]->data[x * pixelSize() + colorSize + i] != 0xFF) return; + } + } + } + + uint8_t *ptr = data; + for (uint32_t y = 0; y < header.height; ++y) { + *ptr++ = lines[y]->type; + for (uint32_t x = 0; x < header.width; ++x) { + memmove(ptr, &lines[y]->data[x * pixelSize()], colorSize); + ptr += colorSize; + } + } + header.color = (header.color == GrayscaleAlpha) ? Grayscale : Truecolor; + scanlines(); +} + +static void discardColor(void) { + if (header.color != Truecolor && header.color != TruecolorAlpha) return; + size_t sampleSize = header.depth / 8; + for (uint32_t y = 0; y < header.height; ++y) { + for (uint32_t x = 0; x < header.width; ++x) { + uint8_t *r = &lines[y]->data[x * pixelSize()]; + uint8_t *g = r + sampleSize; + uint8_t *b = g + sampleSize; + if (0 != memcmp(r, g, sampleSize)) return; + if (0 != memcmp(g, b, sampleSize)) return; + } + } + + uint8_t *ptr = data; + for (uint32_t y = 0; y < header.height; ++y) { + *ptr++ = lines[y]->type; + for (uint32_t x = 0; x < header.width; ++x) { + uint8_t *pixel = &lines[y]->data[x * pixelSize()]; + memmove(ptr, pixel, sampleSize); + ptr += sampleSize; + if (header.color == TruecolorAlpha) { + memmove(ptr, pixel + 3 * sampleSize, sampleSize); + ptr += sampleSize; + } + } + } + header.color = (header.color == Truecolor) ? Grayscale : GrayscaleAlpha; + scanlines(); +} + +static void indexColor(void) { + if (header.color != Truecolor && header.color != TruecolorAlpha) return; + if (header.depth != 8) return; + bool alpha = (header.color == TruecolorAlpha); + for (uint32_t y = 0; y < header.height; ++y) { + for (uint32_t x = 0; x < header.width; ++x) { + if (!paletteAdd(alpha, &lines[y]->data[x * pixelSize()])) return; + } + } + transCompact(); + + uint8_t *ptr = data; + for (uint32_t y = 0; y < header.height; ++y) { + *ptr++ = lines[y]->type; + for (uint32_t x = 0; x < header.width; ++x) { + *ptr++ = paletteIndex(alpha, &lines[y]->data[x * pixelSize()]); + } + } + header.color = Indexed; + scanlines(); +} + +static void reduceDepth8(void) { + if (header.color != Grayscale && header.color != Indexed) return; + if (header.depth != 8) return; + if (header.color == Grayscale) { + for (uint32_t y = 0; y < header.height; ++y) { + for (size_t i = 0; i < lineSize(); ++i) { + uint8_t a = lines[y]->data[i]; + if ((a >> 4) != (a & 0x0F)) return; + } + } + } else if (palette.len > 16) { + return; + } + + uint8_t *ptr = data; + for (uint32_t y = 0; y < header.height; ++y) { + *ptr++ = lines[y]->type; + for (size_t i = 0; i < lineSize(); i += 2) { + uint8_t iByte = lines[y]->data[i]; + uint8_t jByte = (i + 1 < lineSize()) ? lines[y]->data[i + 1] : 0; + uint8_t a = iByte & 0x0F; + uint8_t b = jByte & 0x0F; + *ptr++ = a << 4 | b; + } + } + header.depth = 4; + scanlines(); +} + +static void reduceDepth4(void) { + if (header.depth != 4) return; + if (header.color == Grayscale) { + for (uint32_t y = 0; y < header.height; ++y) { + for (size_t i = 0; i < lineSize(); ++i) { + uint8_t a = lines[y]->data[i] >> 4; + uint8_t b = lines[y]->data[i] & 0x0F; + if ((a >> 2) != (a & 0x03)) return; + if ((b >> 2) != (b & 0x03)) return; + } + } + } else if (palette.len > 4) { + return; + } + + uint8_t *ptr = data; + for (uint32_t y = 0; y < header.height; ++y) { + *ptr++ = lines[y]->type; + for (size_t i = 0; i < lineSize(); i += 2) { + uint8_t iByte = lines[y]->data[i]; + uint8_t jByte = (i + 1 < lineSize()) ? lines[y]->data[i + 1] : 0; + uint8_t a = iByte >> 4 & 0x03, b = iByte & 0x03; + uint8_t c = jByte >> 4 & 0x03, d = jByte & 0x03; + *ptr++ = a << 6 | b << 4 | c << 2 | d; + } + } + header.depth = 2; + scanlines(); +} + +static void reduceDepth2(void) { + if (header.depth != 2) return; + if (header.color == Grayscale) { + for (uint32_t y = 0; y < header.height; ++y) { + for (size_t i = 0; i < lineSize(); ++i) { + uint8_t a = lines[y]->data[i] >> 6; + uint8_t b = lines[y]->data[i] >> 4 & 0x03; + uint8_t c = lines[y]->data[i] >> 2 & 0x03; + uint8_t d = lines[y]->data[i] & 0x03; + if ((a >> 1) != (a & 0x01)) return; + if ((b >> 1) != (b & 0x01)) return; + if ((c >> 1) != (c & 0x01)) return; + if ((d >> 1) != (d & 0x01)) return; + } + } + } else if (palette.len > 2) { + return; + } + + uint8_t *ptr = data; + for (uint32_t y = 0; y < header.height; ++y) { + *ptr++ = lines[y]->type; + for (size_t i = 0; i < lineSize(); i += 2) { + uint8_t iByte = lines[y]->data[i]; + uint8_t jByte = (i + 1 < lineSize()) ? lines[y]->data[i + 1] : 0; + uint8_t a = iByte >> 6 & 0x01, b = iByte >> 4 & 0x01; + uint8_t c = iByte >> 2 & 0x01, d = iByte & 0x01; + uint8_t e = jByte >> 6 & 0x01, f = jByte >> 4 & 0x01; + uint8_t g = jByte >> 2 & 0x01, h = jByte & 0x01; + *ptr++ = a << 7 | b << 6 | c << 5 | d << 4 | e << 3 | f << 2 | g << 1 | h; + } + } + header.depth = 1; + scanlines(); +} + +static void reduceDepth(void) { + reduceDepth8(); + reduceDepth4(); + reduceDepth2(); +} + +static void optimize(const char *inPath, const char *outPath) { + if (inPath) { + path = inPath; + file = fopen(path, "r"); + if (!file) err(EX_NOINPUT, "%s", path); + } else { + path = "(stdin)"; + file = stdin; + } + + readSignature(); + struct Chunk ihdr = readChunk(); + if (0 != memcmp(ihdr.type, "IHDR", 4)) { + errx(EX_DATAERR, "%s: expected IHDR, found %s", path, typeStr(ihdr)); + } + readHeader(ihdr); + if (header.interlace != Progressive) { + errx( + EX_CONFIG, "%s: unsupported interlace method %hhu", + path, header.interlace + ); + } + + paletteClear(); + allocData(); + for (;;) { + struct Chunk chunk = readChunk(); + if (0 == memcmp(chunk.type, "PLTE", 4)) { + readPalette(chunk); + } else if (0 == memcmp(chunk.type, "tRNS", 4)) { + readTrans(chunk); + } else if (0 == memcmp(chunk.type, "IDAT", 4)) { + readData(chunk); + } else if (0 != memcmp(chunk.type, "IEND", 4)) { + skipChunk(chunk); + } else { + break; + } + } + + fclose(file); + + allocLines(); + scanlines(); + reconData(); + + discardAlpha(); + discardColor(); + indexColor(); + reduceDepth(); + filterData(); + free(lines); + + if (outPath) { + path = outPath; + file = fopen(path, "w"); + if (!file) err(EX_CANTCREAT, "%s", path); + } else { + path = "(stdout)"; + file = stdout; + } + + writeSignature(); + writeHeader(); + if (header.color == Indexed) { + writePalette(); + if (trans.len) writeTrans(); + } + writeData(); + writeEnd(); + free(data); + + int error = fclose(file); + if (error) err(EX_IOERR, "%s", path); +} + +int main(int argc, char *argv[]) { + bool stdio = false; + char *output = NULL; + + int opt; + while (0 < (opt = getopt(argc, argv, "co:v"))) { + switch (opt) { + break; case 'c': stdio = true; + break; case 'o': output = optarg; + break; case 'v': verbose = true; + break; default: return EX_USAGE; + } + } + + if (argc - optind == 1 && (output || stdio)) { + optimize(argv[optind], output); + } else if (optind < argc) { + for (int i = optind; i < argc; ++i) { + optimize(argv[i], argv[i]); + } + } else { + optimize(NULL, output); + } + + return EX_OK; +} diff --git a/bin/psf2png.c b/bin/psf2png.c new file mode 100644 index 00000000..1aaa8635 --- /dev/null +++ b/bin/psf2png.c @@ -0,0 +1,107 @@ +/* Copyright (C) 2018 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <err.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sysexits.h> +#include <unistd.h> + +#include "png.h" + +int main(int argc, char *argv[]) { + uint32_t cols = 32; + const char *str = NULL; + uint32_t fg = 0xFFFFFF; + uint32_t bg = 0x000000; + + int opt; + while (0 < (opt = getopt(argc, argv, "b:c:f:s:"))) { + switch (opt) { + break; case 'b': bg = strtoul(optarg, NULL, 16); + break; case 'c': cols = strtoul(optarg, NULL, 0); + break; case 'f': fg = strtoul(optarg, NULL, 16); + break; case 's': str = optarg; + break; default: return EX_USAGE; + } + } + if (!cols && str) cols = strlen(str); + if (!cols) return EX_USAGE; + + const char *path = NULL; + if (optind < argc) path = argv[optind]; + + FILE *file = path ? fopen(path, "r") : stdin; + if (!file) err(EX_NOINPUT, "%s", path); + if (!path) path = "(stdin)"; + + struct { + uint32_t magic; + uint32_t version; + uint32_t size; + uint32_t flags; + struct { + uint32_t len; + uint32_t size; + uint32_t height; + uint32_t width; + } glyph; + } header; + size_t len = fread(&header, sizeof(header), 1, file); + if (ferror(file)) err(EX_IOERR, "%s", path); + if (len < 1) errx(EX_DATAERR, "%s: truncated header", path); + + uint32_t widthBytes = (header.glyph.width + 7) / 8; + uint8_t glyphs[header.glyph.len][header.glyph.height][widthBytes]; + len = fread(glyphs, header.glyph.size, header.glyph.len, file); + if (ferror(file)) err(EX_IOERR, "%s", path); + if (len < header.glyph.len) { + errx(EX_DATAERR, "%s: truncated glyphs", path); + } + fclose(file); + + uint32_t count = (str ? strlen(str) : header.glyph.len); + uint32_t width = header.glyph.width * cols; + uint32_t rows = (count + cols - 1) / cols; + uint32_t height = header.glyph.height * rows; + + pngHead(stdout, width, height, 8, PNGIndexed); + uint8_t pal[] = { + bg >> 16, bg >> 8, bg, + fg >> 16, fg >> 8, fg, + }; + pngPalette(stdout, pal, sizeof(pal)); + + uint8_t data[height][1 + width]; + memset(data, PNGNone, sizeof(data)); + + for (uint32_t i = 0; i < count; ++i) { + uint32_t row = header.glyph.height * (i / cols); + uint32_t col = 1 + header.glyph.width * (i % cols); + uint32_t g = (str ? str[i] : i); + for (uint32_t y = 0; y < header.glyph.height; ++y) { + for (uint32_t x = 0; x < header.glyph.width; ++x) { + uint8_t bit = glyphs[g][y][x / 8] >> (7 - x % 8) & 1; + data[row + y][col + x] = bit; + } + } + } + + pngData(stdout, (uint8_t *)data, sizeof(data)); + pngTail(stdout); +} diff --git a/bin/psfed.c b/bin/psfed.c new file mode 100644 index 00000000..4f46b500 --- /dev/null +++ b/bin/psfed.c @@ -0,0 +1,577 @@ +/* Copyright (C) 2018 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <linux/fb.h> +#include <locale.h> +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/ioctl.h> +#include <sys/mman.h> +#include <sysexits.h> +#include <termios.h> +#include <unistd.h> +#include <wchar.h> + +static const wchar_t CP437[256] = + L"\0☺☻♥♦♣♠•◘○◙♂♀♪♫☼" + L"►◄↕‼¶§▬↨↑↓→â†âˆŸâ†”▲▼" + L" !\"#$%&'()*+,-./" + L"0123456789:;<=>?" + L"@ABCDEFGHIJKLMNO" + L"PQRSTUVWXYZ[\\]^_" + L"`abcdefghijklmno" + L"pqrstuvwxyz{|}~⌂" + L"Çüéâäà åçêëèïîìÄÅ" + L"ÉæÆôöòûùÿÖÜ¢£¥₧ƒ" + L"áÃóúñѪº¿âŒÂ¬Â½Â¼Â¡Â«Â»" + L"░▒▓│┤╡╢╖╕╣║╗â•â•œâ•›â”" + L"└┴┬├─┼╞╟╚╔╩╦╠â•â•¬â•§" + L"╨╤╥╙╘╒╓╫╪┘┌█▄▌â–â–€" + L"αßΓπΣσµτΦΘΩδ∞φε∩" + L"≡±≥≤⌠⌡÷≈°∙·√â¿Â²â– \0"; + +static struct { + uint32_t width; + uint32_t height; + uint32_t *buffer; + uint32_t background; +} frame; + +static void frameClear(void) { + for (uint32_t i = 0; i < frame.width * frame.height; ++i) { + frame.buffer[i] = frame.background; + } +} + +static void frameOpen(void) { + const char *dev = getenv("FRAMEBUFFER"); + if (!dev) dev = "/dev/fb0"; + + int fd = open(dev, O_RDWR); + if (fd < 0) err(EX_OSFILE, "%s", dev); + + struct fb_var_screeninfo info; + int error = ioctl(fd, FBIOGET_VSCREENINFO, &info); + if (error) err(EX_IOERR, "%s", dev); + + frame.width = info.xres; + frame.height = 3 * info.yres / 4; + frame.buffer = mmap( + NULL, sizeof(*frame.buffer) * frame.width * frame.height, + PROT_READ | PROT_WRITE, MAP_SHARED, + fd, 0 + ); + if (frame.buffer == MAP_FAILED) err(EX_IOERR, "%s", dev); + close(fd); + + frame.background = frame.buffer[0]; + atexit(frameClear); +} + +static const uint32_t Magic = 0x864AB572; +static const uint32_t Version = 0; +static const uint32_t FlagUnicode = 1 << 0; +static uint32_t bytes(uint32_t bits) { + return (bits + 7) / 8; +} + +static char *path; +static struct { + uint32_t magic; + uint32_t version; + uint32_t size; + uint32_t flags; + struct { + uint32_t len; + uint32_t size; + uint32_t height; + uint32_t width; + } glyph; +} header; +static uint8_t *glyphs; + +static void fileRead(uint32_t newLen, uint32_t newWidth, uint32_t newHeight) { + FILE *file = fopen(path, "r"); + if (file) { + size_t len = fread(&header, sizeof(header), 1, file); + if (ferror(file)) err(EX_IOERR, "%s", path); + if (len < 1) errx(EX_DATAERR, "%s: truncated header", path); + + } else { + if (errno != ENOENT) err(EX_NOINPUT, "%s", path); + header.magic = Magic; + header.version = Version; + header.size = sizeof(header); + header.flags = 0; + header.glyph.len = newLen; + header.glyph.size = bytes(newWidth) * newHeight; + header.glyph.height = newHeight; + header.glyph.width = newWidth; + } + + if (header.magic != Magic) { + errx(EX_DATAERR, "%s: invalid magic %08X", path, header.magic); + } + if (header.version != Version) { + errx(EX_DATAERR, "%s: unsupported version %u", path, header.version); + } + if (header.flags & FlagUnicode) { + errx(EX_DATAERR, "%s: unsupported unicode table", path); + } + if (header.flags) { + errx(EX_DATAERR, "%s: unsupported flags %08X", path, header.flags); + } + + if (file && header.size > sizeof(header)) { + int error = fseek(file, header.size, SEEK_SET); + if (error) err(EX_IOERR, "%s", path); + + warnx("%s: truncating long header", path); + header.size = sizeof(header); + } + + glyphs = calloc(header.glyph.len, header.glyph.size); + if (!glyphs) err(EX_OSERR, "calloc"); + + if (file) { + size_t len = fread(glyphs, header.glyph.size, header.glyph.len, file); + if (ferror(file)) err(EX_IOERR, "%s", path); + if (len < header.glyph.len) { + errx(EX_DATAERR, "%s: truncated glyphs", path); + } + fclose(file); + } +} + +static void fileWrite(void) { + FILE *file = fopen(path, "w"); + if (!file) err(EX_CANTCREAT, "%s", path); + + fwrite(&header, sizeof(header), 1, file); + if (ferror(file)) err(EX_IOERR, "%s", path); + + fwrite(glyphs, header.glyph.size, header.glyph.len, file); + if (ferror(file)) err(EX_IOERR, "%s", path); + + int error = fclose(file); + if (error) err(EX_IOERR, "%s", path); +} + +static uint8_t *glyph(uint32_t index) { + return &glyphs[header.glyph.size * index]; +} +static uint8_t *bitByte(uint32_t index, uint32_t x, uint32_t y) { + return &glyph(index)[bytes(header.glyph.width) * y + x / 8]; +} +static uint8_t bitGet(uint32_t index, uint32_t x, uint32_t y) { + return *bitByte(index, x, y) >> (7 - x % 8) & 1; +} +static void bitFlip(uint32_t index, uint32_t x, uint32_t y) { + *bitByte(index, x, y) ^= 1 << (7 - x % 8); +} +static void bitSet(uint32_t index, uint32_t x, uint32_t y, uint8_t bit) { + *bitByte(index, x, y) &= ~(1 << (7 - x % 8)); + *bitByte(index, x, y) |= bit << (7 - x % 8); +} + +static void drawGlyph( + uint32_t destX, uint32_t destY, uint32_t scale, uint32_t index, + uint32_t selectX, uint32_t selectY, uint32_t guideX, uint32_t guideY +) { + destX <<= scale; + destY <<= scale; + + for (uint32_t y = 0; y < (header.glyph.height << scale); ++y) { + if (destY + y >= frame.height) break; + for (uint32_t x = 0; x < (header.glyph.width << scale); ++x) { + if (destX + x >= frame.width) break; + + uint32_t glyphX = x >> scale; + uint32_t glyphY = y >> scale; + uint32_t fill = -bitGet(index, glyphX, glyphY); + if (selectX & 1 << glyphX && selectY & 1 << glyphY) fill ^= 0x77; + if (guideX & 1 << glyphX || guideY & 1 << glyphY) fill ^= 0x3300; + + frame.buffer[frame.width * (destY + y) + destX + x] = fill; + } + } +} + +static void drawBorder(uint32_t destX, uint32_t destY, uint32_t scale) { + destX <<= scale; + destY <<= scale; + + for (uint32_t y = 0; y < destY; ++y) { + if (y >= frame.height) break; + uint32_t fill = -(y >> scale & 1) ^ 0x555555; + for (uint32_t x = 0; x < (uint32_t)(1 << scale); ++x) { + if (destX + x >= frame.width) break; + frame.buffer[frame.width * y + destX + x] = fill; + } + } + + for (uint32_t x = 0; x < destX; ++x) { + if (x >= frame.width) break; + uint32_t fill = -(x >> scale & 1) ^ 0x555555; + for (uint32_t y = 0; y < (uint32_t)(1 << scale); ++y) { + if (destY + y >= frame.height) break; + frame.buffer[frame.width * (destY + y) + x] = fill; + } + } +} + +enum { LF = '\n', Esc = '\33', Del = '\177' }; + +static enum { + Normal, + Edit, + Preview, + Discard, +} mode; + +static struct { + uint32_t scale; + uint32_t index; + bool modified; + bool to; + uint32_t from; +} normal; + +static struct { + uint32_t scale; + uint32_t index; + uint32_t x; + uint32_t y; + uint32_t guideX; + uint32_t guideY; + uint8_t *undo; + uint8_t *copy; +} edit = { + .scale = 4, +}; + +static const uint32_t NormalCols = 32; +static void drawNormal(void) { + for (uint32_t i = 0; i < header.glyph.len; ++i) { + drawGlyph( + header.glyph.width * (i % NormalCols), + header.glyph.height * (i / NormalCols), + normal.scale, i, + -(i == normal.index), -(i == normal.index), 0, 0 + ); + } +} + +static void normalDec(uint32_t n) { + if (normal.index >= n) normal.index -= n; +} +static void normalInc(uint32_t n) { + if (normal.index + n < header.glyph.len) normal.index += n; +} +static void normalPrint(const char *prefix) { + if (normal.index <= 256) { + printf( + "%s: %02X '%lc'\n", + prefix, normal.index, (wint_t)CP437[normal.index] + ); + } else { + printf("%s: %02X\n", prefix, normal.index); + } +} + +static void inputNormal(char ch) { + if (normal.to) { + if (ch < header.glyph.len) normal.index = ch; + normalPrint("index"); + normal.to = false; + return; + } + + switch (ch) { + break; case 'q': { + if (!normal.modified) exit(EX_OK); + mode = Discard; + } + break; case 'w': { + fileWrite(); + printf("write: %s\n", path); + normal.modified = false; + } + break; case '-': if (normal.scale) normal.scale--; frameClear(); + break; case '+': normal.scale++; + break; case 'h': normalDec(1); normalPrint("index"); + break; case 'l': normalInc(1); normalPrint("index"); + break; case 'k': normalDec(NormalCols); normalPrint("index"); + break; case 'j': normalInc(NormalCols); normalPrint("index"); + break; case 'f': normal.from = normal.index; normal.to = true; + break; case 047: normal.index = normal.from; normalPrint("index"); + break; case 'y': { + if (!edit.copy) edit.copy = malloc(header.glyph.size); + if (!edit.copy) err(EX_OSERR, "malloc"); + memcpy(edit.copy, glyph(normal.index), header.glyph.size); + normalPrint("copy"); + } + break; case 'e': { + normal.modified = true; + edit.index = normal.index; + if (!edit.undo) edit.undo = malloc(header.glyph.size); + if (!edit.undo) err(EX_OSERR, "malloc"); + memcpy(edit.undo, glyph(edit.index), header.glyph.size); + mode = Edit; + frameClear(); + } + break; case 'i': mode = Preview; frameClear(); + } +} + +static void drawEdit(void) { + drawGlyph( + 0, 0, edit.scale, edit.index, + 1 << edit.x, 1 << edit.y, edit.guideX, edit.guideY + ); + drawBorder(header.glyph.width, header.glyph.height, edit.scale); + drawGlyph( + header.glyph.width << edit.scale, + header.glyph.height << edit.scale, + 0, edit.index, + 0, 0, 0, 0 + ); +} + +static void inputEdit(char ch) { + switch (ch) { + break; case Esc: mode = Normal; frameClear(); + + break; case '-': if (edit.scale) edit.scale--; frameClear(); + break; case '+': edit.scale++; + break; case 'g': edit.guideY ^= 1 << edit.y; + break; case 'G': edit.guideX ^= 1 << edit.x; + + break; case 'h': if (edit.x) edit.x--; + break; case 'l': if (edit.x + 1 < header.glyph.width) edit.x++; + break; case 'k': if (edit.y) edit.y--; + break; case 'j': if (edit.y + 1 < header.glyph.height) edit.y++; + break; case ' ': bitFlip(edit.index, edit.x, edit.y); + + break; case 'r': { + for (uint32_t y = 0; y < header.glyph.height; ++y) { + for (uint32_t x = 0; x < header.glyph.width; ++x) { + bitFlip(edit.index, x, y); + } + } + } + + break; case 'H': { + for (uint32_t x = 0; x < header.glyph.width; ++x) { + for (uint32_t y = 0; y < header.glyph.height; ++y) { + if (x + 1 < header.glyph.width) { + bitSet(edit.index, x, y, bitGet(edit.index, x + 1, y)); + } else { + bitSet(edit.index, x, y, 0); + } + } + } + } + + break; case 'L': { + uint32_t width = header.glyph.width; + for (uint32_t x = width - 1; x < width; --x) { + for (uint32_t y = 0; y < header.glyph.height; ++y) { + if (x - 1 < width) { + bitSet(edit.index, x, y, bitGet(edit.index, x - 1, y)); + } else { + bitSet(edit.index, x, y, 0); + } + } + } + } + + break; case 'K': { + for (uint32_t y = 0; y < header.glyph.height; ++y) { + for (uint32_t x = 0; x < header.glyph.width; ++x) { + if (y + 1 < header.glyph.height) { + bitSet(edit.index, x, y, bitGet(edit.index, x, y + 1)); + } else { + bitSet(edit.index, x, y, 0); + } + } + } + } + + break; case 'J': { + uint32_t height = header.glyph.height; + for (uint32_t y = height - 1; y < height; --y) { + for (uint32_t x = 0; x < header.glyph.width; ++x) { + if (y - 1 < height) { + bitSet(edit.index, x, y, bitGet(edit.index, x, y - 1)); + } else { + bitSet(edit.index, x, y, 0); + } + } + } + } + + break; case 'p': { + if (!edit.copy) break; + memcpy(glyph(edit.index), edit.copy, header.glyph.size); + } + break; case 'u': { + if (!edit.undo) break; + memcpy(glyph(edit.index), edit.undo, header.glyph.size); + } + } +} + +enum { PreviewRows = 8, PreviewCols = 64 }; +static struct { + uint32_t glyphs[PreviewRows * PreviewCols]; + uint32_t index; +} preview; + +static void drawPreview(void) { + for (uint32_t i = 0; i < PreviewRows * PreviewCols; ++i) { + drawGlyph( + header.glyph.width * (i % PreviewCols), + header.glyph.height * (i / PreviewCols), + 0, preview.glyphs[i], + -(i == preview.index), -(i == preview.index), 0, 0 + ); + } +} + +static void inputPreview(char ch) { + switch (ch) { + break; case Esc: mode = Normal; frameClear(); + break; case Del: { + if (preview.index) preview.index--; + preview.glyphs[preview.index] = 0; + } + break; case LF: { + uint32_t tail = PreviewCols - (preview.index % PreviewCols); + memset( + &preview.glyphs[preview.index], + 0, sizeof(preview.glyphs[0]) * tail + ); + preview.index += tail; + } + break; default: preview.glyphs[preview.index++] = ch; + } + preview.index %= PreviewRows * PreviewCols; +} + +static void drawDiscard(void) { + printf("discard modifications? "); + fflush(stdout); +} + +static void inputDiscard(char ch) { + printf("%c\n", ch); + if (ch == 'Y' || ch == 'y') exit(EX_OK); + mode = Normal; +} + +static void draw(void) { + switch (mode) { + break; case Normal: drawNormal(); + break; case Edit: drawEdit(); + break; case Preview: drawPreview(); + break; case Discard: drawDiscard(); + } +} + +static void input(char ch) { + switch (mode) { + break; case Normal: inputNormal(ch); + break; case Edit: inputEdit(ch); + break; case Preview: inputPreview(ch); + break; case Discard: inputDiscard(ch); + } +} + +static struct termios saveTerm; +static void restoreTerm(void) { + tcsetattr(STDIN_FILENO, TCSADRAIN, &saveTerm); +} + +int main(int argc, char *argv[]) { + setlocale(LC_CTYPE, ""); + + uint32_t newLen = 256; + uint32_t newWidth = 8; + uint32_t newHeight = 16; + uint32_t setHeight = 0; + + int opt; + while (0 < (opt = getopt(argc, argv, "H:g:h:w:"))) { + switch (opt) { + break; case 'H': setHeight = strtoul(optarg, NULL, 0); + break; case 'g': newLen = strtoul(optarg, NULL, 0); + break; case 'h': newHeight = strtoul(optarg, NULL, 0); + break; case 'w': newWidth = strtoul(optarg, NULL, 0); + break; default: return EX_USAGE; + } + } + if (!newLen || !newWidth || !newHeight) return EX_USAGE; + if (optind == argc) return EX_USAGE; + + path = strdup(argv[optind]); + fileRead(newLen, newWidth, newHeight); + + if (setHeight) { + if (setHeight < header.glyph.height) { + errx(EX_CONFIG, "cannot decrease height"); + } + + uint32_t setSize = bytes(header.glyph.width) * setHeight; + uint8_t *setGlyphs = calloc(header.glyph.len, setSize); + for (uint32_t i = 0; i < header.glyph.len; ++i) { + memcpy(&setGlyphs[setSize * i], glyph(i), header.glyph.size); + } + free(glyphs); + glyphs = setGlyphs; + + header.glyph.height = setHeight; + header.glyph.size = setSize; + normal.modified = true; + } + + frameOpen(); + frameClear(); + + int error = tcgetattr(STDIN_FILENO, &saveTerm); + if (error) err(EX_IOERR, "tcgetattr"); + atexit(restoreTerm); + + struct termios term = saveTerm; + term.c_lflag &= ~(ICANON | ECHO); + error = tcsetattr(STDIN_FILENO, TCSADRAIN, &term); + if (error) err(EX_IOERR, "tcsetattr"); + + for (;;) { + draw(); + char ch; + ssize_t size = read(STDIN_FILENO, &ch, 1); + if (size < 0) err(EX_IOERR, "read"); + if (!size) return EX_SOFTWARE; + input(ch); + } +} diff --git a/bin/ptee.c b/bin/ptee.c new file mode 100644 index 00000000..6a9a16b4 --- /dev/null +++ b/bin/ptee.c @@ -0,0 +1,116 @@ +/* Copyright (C) 2019 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <err.h> +#include <poll.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <sys/ioctl.h> +#include <sys/wait.h> +#include <sysexits.h> +#include <termios.h> +#include <unistd.h> + +#if defined __FreeBSD__ +#include <libutil.h> +#elif defined __linux__ +#include <pty.h> +#else +#include <util.h> +#endif + +typedef unsigned char byte; + +static struct termios saveTerm; +static void restoreTerm(void) { + tcsetattr(STDIN_FILENO, TCSADRAIN, &saveTerm); +} + +int main(int argc, char *argv[]) { + if (argc < 2) return EX_USAGE; + if (isatty(STDOUT_FILENO)) errx(EX_USAGE, "stdout is not redirected"); + + int error = tcgetattr(STDIN_FILENO, &saveTerm); + if (error) err(EX_IOERR, "tcgetattr"); + atexit(restoreTerm); + + struct termios raw = saveTerm; + cfmakeraw(&raw); + error = tcsetattr(STDIN_FILENO, TCSADRAIN, &raw); + if (error) err(EX_IOERR, "tcsetattr"); + + struct winsize window; + error = ioctl(STDIN_FILENO, TIOCGWINSZ, &window); + if (error) err(EX_IOERR, "ioctl"); + + int pty; + pid_t pid = forkpty(&pty, NULL, NULL, &window); + if (pid < 0) err(EX_OSERR, "forkpty"); + + if (!pid) { + execvp(argv[1], &argv[1]); + err(EX_NOINPUT, "%s", argv[1]); + } + + bool stop = false; + + byte buf[4096]; + struct pollfd fds[2] = { + { .events = POLLIN, .fd = STDIN_FILENO }, + { .events = POLLIN, .fd = pty }, + }; + while (0 < poll(fds, 2, -1)) { + if (fds[0].revents & POLLIN) { + ssize_t rlen = read(STDIN_FILENO, buf, sizeof(buf)); + if (rlen < 0) err(EX_IOERR, "read"); + + if (rlen == 1 && buf[0] == CTRL('S')) { + stop ^= true; + continue; + } + + if (rlen == 1 && buf[0] == CTRL('Q')) { + char dump[] = "\x1B[10i"; + ssize_t wlen = write(STDOUT_FILENO, dump, sizeof(dump) - 1); + if (wlen < 0) err(EX_IOERR, "write"); + continue; + } + + ssize_t wlen = write(pty, buf, rlen); + if (wlen < 0) err(EX_IOERR, "write"); + } + + if (fds[1].revents & POLLIN) { + ssize_t rlen = read(pty, buf, sizeof(buf)); + if (rlen < 0) err(EX_IOERR, "read"); + + ssize_t wlen = write(STDIN_FILENO, buf, rlen); + if (wlen < 0) err(EX_IOERR, "write"); + + if (!stop) { + wlen = write(STDOUT_FILENO, buf, rlen); + if (wlen < 0) err(EX_IOERR, "write"); + } + } + + int status; + pid_t dead = waitpid(pid, &status, WNOHANG); + if (dead < 0) err(EX_OSERR, "waitpid"); + if (dead) return WIFEXITED(status) ? WEXITSTATUS(status) : EX_SOFTWARE; + } + err(EX_IOERR, "poll"); +} diff --git a/bin/relay.c b/bin/relay.c new file mode 100644 index 00000000..aa7913c9 --- /dev/null +++ b/bin/relay.c @@ -0,0 +1,218 @@ +/* Copyright (C) 2019 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * Additional permission under GNU GPL version 3 section 7: + * + * If you modify this Program, or any covered work, by linking or + * combining it with LibreSSL (or a modified version of that library), + * containing parts covered by the terms of the OpenSSL License and the + * original SSLeay license, the licensors of this Program grant you + * additional permission to convey the resulting work. Corresponding + * Source for a non-source form of such a combination shall include the + * source code for the parts of LibreSSL used as well as that of the + * covered work. + */ + +#include <err.h> +#include <netdb.h> +#include <netinet/in.h> +#include <poll.h> +#include <signal.h> +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/socket.h> +#include <sysexits.h> +#include <tls.h> +#include <unistd.h> + +#ifdef __FreeBSD__ +#include <sys/capsicum.h> +#endif + +static void clientWrite(struct tls *client, const char *ptr, size_t len) { + while (len) { + ssize_t ret = tls_write(client, ptr, len); + if (ret == TLS_WANT_POLLIN || ret == TLS_WANT_POLLOUT) continue; + if (ret < 0) errx(EX_IOERR, "tls_write: %s", tls_error(client)); + ptr += ret; + len -= ret; + } +} + +static void clientFormat(struct tls *client, const char *format, ...) { + char buf[1024]; + va_list ap; + va_start(ap, format); + int len = vsnprintf(buf, sizeof(buf), format, ap); + va_end(ap); + if ((size_t)len > sizeof(buf) - 1) errx(EX_DATAERR, "message too large"); + clientWrite(client, buf, len); +} + +static void clientHandle(struct tls *client, const char *chan, char *line) { + char *prefix = NULL; + if (line[0] == ':') { + prefix = strsep(&line, " ") + 1; + if (!line) errx(EX_PROTOCOL, "unexpected eol"); + } + + char *command = strsep(&line, " "); + if (!strcmp(command, "001") || !strcmp(command, "INVITE")) { + clientFormat(client, "JOIN :%s\r\n", chan); + } else if (!strcmp(command, "PING")) { + clientFormat(client, "PONG %s\r\n", line); + } + if (strcmp(command, "PRIVMSG") && strcmp(command, "NOTICE")) return; + + if (!prefix) errx(EX_PROTOCOL, "message without prefix"); + char *nick = strsep(&prefix, "!"); + + if (!line) errx(EX_PROTOCOL, "message without destination"); + char *dest = strsep(&line, " "); + if (strcmp(dest, chan)) return; + + if (!line || line[0] != ':') errx(EX_PROTOCOL, "message without message"); + line = &line[1]; + + if (!strncmp(line, "\1ACTION ", 8)) { + line = &line[8]; + size_t len = strcspn(line, "\1"); + printf("* %c\u200C%s %.*s\n", nick[0], &nick[1], (int)len, line); + } else if (command[0] == 'N') { + printf("-%c\u200C%s- %s\n", nick[0], &nick[1], line); + } else { + printf("<%c\u200C%s> %s\n", nick[0], &nick[1], line); + } +} + +#ifdef __FreeBSD__ +static void limit(int fd, const cap_rights_t *rights) { + int error = cap_rights_limit(fd, rights); + if (error) err(EX_OSERR, "cap_rights_limit"); +} +#endif + +int main(int argc, char *argv[]) { + int error; + + if (argc < 5) return EX_USAGE; + const char *host = argv[1]; + const char *port = argv[2]; + const char *nick = argv[3]; + const char *chan = argv[4]; + + setlinebuf(stdout); + signal(SIGPIPE, SIG_IGN); + + struct tls_config *config = tls_config_new(); + if (!config) errx(EX_SOFTWARE, "tls_config_new"); + + error = tls_config_set_ciphers(config, "compat"); + if (error) { + errx(EX_SOFTWARE, "tls_config_set_ciphers: %s", tls_config_error(config)); + } + + struct tls *client = tls_client(); + if (!client) errx(EX_SOFTWARE, "tls_client"); + + error = tls_configure(client, config); + if (error) errx(EX_SOFTWARE, "tls_configure: %s", tls_error(client)); + tls_config_free(config); + + struct addrinfo *head; + struct addrinfo hints = { + .ai_family = AF_UNSPEC, + .ai_socktype = SOCK_STREAM, + .ai_protocol = IPPROTO_TCP, + }; + error = getaddrinfo(host, port, &hints, &head); + if (error) errx(EX_NOHOST, "getaddrinfo: %s", gai_strerror(error)); + + int sock = -1; + for (struct addrinfo *ai = head; ai; ai = ai->ai_next) { + sock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol); + if (sock < 0) err(EX_OSERR, "socket"); + + error = connect(sock, ai->ai_addr, ai->ai_addrlen); + if (!error) break; + + close(sock); + sock = -1; + } + if (sock < 0) err(EX_UNAVAILABLE, "connect"); + freeaddrinfo(head); + + error = tls_connect_socket(client, sock, host); + if (error) errx(EX_PROTOCOL, "tls_connect: %s", tls_error(client)); + +#ifdef __FreeBSD__ + error = cap_enter(); + if (error) err(EX_OSERR, "cap_enter"); + + cap_rights_t rights; + cap_rights_init(&rights, CAP_WRITE); + limit(STDOUT_FILENO, &rights); + limit(STDERR_FILENO, &rights); + + cap_rights_init(&rights, CAP_EVENT, CAP_READ); + limit(STDIN_FILENO, &rights); + + cap_rights_set(&rights, CAP_WRITE); + limit(sock, &rights); +#endif + + clientFormat(client, "NICK :%s\r\nUSER %s 0 * :%s\r\n", nick, nick, nick); + + char *input = NULL; + size_t cap = 0; + + char buf[4096]; + size_t len = 0; + + struct pollfd fds[2] = { + { .events = POLLIN, .fd = STDIN_FILENO }, + { .events = POLLIN, .fd = sock }, + }; + while (0 < poll(fds, 2, -1)) { + if (fds[0].revents) { + ssize_t len = getline(&input, &cap, stdin); + if (len < 0) err(EX_IOERR, "getline"); + input[len - 1] = '\0'; + clientFormat(client, "NOTICE %s :%s\r\n", chan, input); + } + if (!fds[1].revents) continue; + + ssize_t read = tls_read(client, &buf[len], sizeof(buf) - len); + if (read == TLS_WANT_POLLIN || read == TLS_WANT_POLLOUT) continue; + if (read < 0) errx(EX_IOERR, "tls_read: %s", tls_error(client)); + if (!read) return EX_UNAVAILABLE; + len += read; + + char *crlf; + char *line = buf; + for (;;) { + crlf = memmem(line, &buf[len] - line, "\r\n", 2); + if (!crlf) break; + crlf[0] = '\0'; + clientHandle(client, chan, line); + line = &crlf[2]; + } + len -= line - buf; + memmove(buf, line, len); + } + err(EX_IOERR, "poll"); +} diff --git a/bin/scheme.c b/bin/scheme.c new file mode 100644 index 00000000..33fd8b60 --- /dev/null +++ b/bin/scheme.c @@ -0,0 +1,278 @@ +/* Copyright (C) 2018, 2019 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <err.h> +#include <math.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sysexits.h> +#include <unistd.h> + +#include "png.h" + +typedef unsigned uint; +typedef unsigned char byte; + +struct HSV { + double h, s, v; +}; + +struct RGB { + byte r, g, b; +}; + +static struct RGB convert(struct HSV o) { + double c = o.v * o.s; + double h = o.h / 60.0; + double x = c * (1.0 - fabs(fmod(h, 2.0) - 1.0)); + double m = o.v - c; + double r = m, g = m, b = m; + if (h <= 1.0) { r += c; g += x; } + else if (h <= 2.0) { r += x; g += c; } + else if (h <= 3.0) { g += c; b += x; } + else if (h <= 4.0) { g += x; b += c; } + else if (h <= 5.0) { r += x; b += c; } + else if (h <= 6.0) { r += c; b += x; } + return (struct RGB) { r * 255.0, g * 255.0, b * 255.0 }; +} + +static const struct HSV +R = { 0.0, 1.0, 1.0 }, +Y = { 60.0, 1.0, 1.0 }, +G = { 120.0, 1.0, 1.0 }, +C = { 180.0, 1.0, 1.0 }, +B = { 240.0, 1.0, 1.0 }, +M = { 300.0, 1.0, 1.0 }; + +static struct HSV x(struct HSV o, double hd, double sf, double vf) { + return (struct HSV) { + fmod(o.h + hd, 360.0), + fmin(o.s * sf, 1.0), + fmin(o.v * vf, 1.0), + }; +} + +enum { + Black, Red, Green, Yellow, Blue, Magenta, Cyan, White, + Dark = 0, + Light = 8, + Background = 16, + Foreground, + Bold, + Selection, + Cursor, + SchemeLen, +}; +static struct HSV scheme[SchemeLen]; +static struct HSV *dark = &scheme[Dark]; +static struct HSV *light = &scheme[Light]; + +static void generate(void) { + light[Black] = x(R, +45.0, 0.3, 0.3); + light[Red] = x(R, +10.0, 0.9, 0.8); + light[Green] = x(G, -55.0, 0.8, 0.6); + light[Yellow] = x(Y, -20.0, 0.8, 0.8); + light[Blue] = x(B, -55.0, 0.4, 0.5); + light[Magenta] = x(M, +45.0, 0.4, 0.6); + light[Cyan] = x(C, -60.0, 0.3, 0.6); + light[White] = x(R, +45.0, 0.3, 0.8); + + dark[Black] = x(light[Black], 0.0, 1.0, 0.3); + dark[White] = x(light[White], 0.0, 1.0, 0.75); + for (uint i = Red; i < White; ++i) { + dark[i] = x(light[i], 0.0, 1.0, 0.8); + } + + scheme[Background] = x(dark[Black], 0.0, 1.0, 0.9); + scheme[Foreground] = x(light[White], 0.0, 1.0, 0.9); + scheme[Bold] = x(light[White], 0.0, 1.0, 1.0); + scheme[Selection] = x(light[Red], +10.0, 1.0, 0.8); + scheme[Cursor] = x(dark[White], 0.0, 1.0, 0.8); +} + +static void swap(struct HSV *a, struct HSV *b) { + struct HSV c = *a; + *a = *b; + *b = c; +} + +static void invert(void) { + swap(&dark[Black], &light[White]); + swap(&dark[White], &light[Black]); +} + +typedef void OutputFn(const struct HSV *hsv, uint len); + +static void outputHSV(const struct HSV *hsv, uint len) { + for (uint i = 0; i < len; ++i) { + printf("%g,%g,%g\n", hsv[i].h, hsv[i].s, hsv[i].v); + } +} + +#define FORMAT_RGB "%02hhX%02hhX%02hhX" + +static void outputRGB(const struct HSV *hsv, uint len) { + for (uint i = 0; i < len; ++i) { + struct RGB rgb = convert(hsv[i]); + printf(FORMAT_RGB "\n", rgb.r, rgb.g, rgb.b); + } +} + +static void outputLinux(const struct HSV *hsv, uint len) { + for (uint i = 0; i < len; ++i) { + struct RGB rgb = convert(hsv[i]); + printf("\x1B]P%X" FORMAT_RGB, i, rgb.r, rgb.g, rgb.b); + } +} + +static const char *Enum[SchemeLen] = { + "DarkBlack", "DarkRed", "DarkGreen", "DarkYellow", + "DarkBlue", "DarkMagenta", "DarkCyan", "DarkWhite", + "LightBlack", "LightRed", "LightGreen", "LightYellow", + "LightBlue", "LightMagenta", "LightCyan", "LightWhite", + "Background", "Foreground", "Bold", "Selection", "Cursor", +}; + +static void outputEnum(const struct HSV *hsv, uint len) { + printf("enum {\n"); + for (uint i = 0; i < len; ++i) { + struct RGB rgb = convert(hsv[i]); + printf("\t%s = 0x" FORMAT_RGB ",\n", Enum[i], rgb.r, rgb.g, rgb.b); + } + printf("};\n"); +} + +#define FORMAT_X "rgb:%02hhX/%02hhX/%02hhX" + +static const char *Resources[SchemeLen] = { + [Background] = "background", + [Foreground] = "foreground", + [Bold] = "colorBD", + [Selection] = "highlightColor", + [Cursor] = "cursorColor", +}; + +static void outputXTerm(const struct HSV *hsv, uint len) { + for (uint i = 0; i < len; ++i) { + struct RGB rgb = convert(hsv[i]); + if (Resources[i]) { + printf("XTerm*%s: " FORMAT_X "\n", Resources[i], rgb.r, rgb.g, rgb.b); + } else { + printf("XTerm*color%u: " FORMAT_X "\n", i, rgb.r, rgb.g, rgb.b); + } + } +} + +static const char *Mintty[SchemeLen] = { + "Black", "Red", "Green", "Yellow", + "Blue", "Magenta", "Cyan", "White", + "BoldBlack", "BoldRed", "BoldGreen", "BoldYellow", + "BoldBlue", "BoldMagenta", "BoldCyan", "BoldWhite", + [Background] = "BackgroundColour", + [Foreground] = "ForegroundColour", + [Cursor] = "CursorColour", +}; + +static void outputMintty(const struct HSV *hsv, uint len) { + for (uint i = 0; i < len; ++i) { + if (!Mintty[i]) continue; + struct RGB rgb = convert(hsv[i]); + printf("%s=%hhu,%hhu,%hhu\n", Mintty[i], rgb.r, rgb.g, rgb.b); + } +} + +static void outputCSS(const struct HSV *hsv, uint len) { + printf(":root {\n"); + for (uint i = 0; i < len; ++i) { + struct RGB rgb = convert(hsv[i]); + printf("\t--ansi%u: #" FORMAT_RGB ";\n", i, rgb.r, rgb.g, rgb.b); + } + printf("}\n"); + for (uint i = 0; i < len; ++i) { + printf( + ".fg%u { color: var(--ansi%u); }\n" + ".bg%u { background-color: var(--ansi%u); }\n", + i, i, i, i + ); + } +} + +enum { + SwatchWidth = 64, + SwatchHeight = 64, + SwatchCols = 8, +}; + +static void outputPNG(const struct HSV *hsv, uint len) { + uint rows = (len + SwatchCols - 1) / SwatchCols; + uint width = SwatchWidth * SwatchCols; + uint height = SwatchHeight * rows; + pngHead(stdout, width, height, 8, PNGIndexed); + + struct RGB pal[len]; + for (uint i = 0; i < len; ++i) { + pal[i] = convert(hsv[i]); + } + pngPalette(stdout, (byte *)pal, sizeof(pal)); + + byte data[height][1 + width]; + memset(data, 0, sizeof(data)); + for (uint y = 0; y < height; ++y) { + data[y][0] = (y % SwatchHeight ? PNGUp : PNGSub); + } + for (uint i = 0; i < len; ++i) { + uint y = SwatchHeight * (i / SwatchCols); + uint x = SwatchWidth * (i % SwatchCols); + data[y][1 + x] = (x ? 1 : i); + } + pngData(stdout, (byte *)data, sizeof(data)); + pngTail(stdout); +} + +int main(int argc, char *argv[]) { + generate(); + + OutputFn *output = outputRGB; + const struct HSV *hsv = scheme; + uint len = 16; + + int opt; + while (0 < (opt = getopt(argc, argv, "Xacghilmp:stx"))) { + switch (opt) { + break; case 'X': output = outputXTerm; + break; case 'a': len = 16; + break; case 'c': output = outputEnum; + break; case 'g': output = outputPNG; + break; case 'h': output = outputHSV; + break; case 'i': invert(); + break; case 'l': output = outputLinux; + break; case 'm': output = outputMintty; + break; case 'p': { + uint p = strtoul(optarg, NULL, 0); + if (p >= SchemeLen) return EX_USAGE; + hsv = &scheme[p]; + len = 1; + } + break; case 's': output = outputCSS; + break; case 't': len = SchemeLen; + break; case 'x': output = outputRGB; + break; default: return EX_USAGE; + } + } + + output(hsv, len); +} diff --git a/bin/sh.l b/bin/sh.l new file mode 100644 index 00000000..b27ecebc --- /dev/null +++ b/bin/sh.l @@ -0,0 +1,178 @@ +/* Copyright (C) 2021 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +%option prefix="sh" +%option noyywrap + +%{ +#include <assert.h> +#include <stdbool.h> +#include <string.h> +#include "hilex.h" + +enum { Cap = 64 }; +static int len = 1; +static int stack[Cap]; +static int push(int val) { + if (len < Cap) stack[len++] = val; + return val; +} +static int pop(void) { + if (len > 1) len--; + return stack[len-1]; +} +%} + +%s Param Command Arith Backtick +%x DQuote HereDocDel HereDoc HereDocLit + +word [[:alnum:]_.-]+ +param [^:=?+%#{}-]+ +reserved [!{}]|else|do|elif|for|done|fi|then|until|while|if|case|esac + +%% + static bool first; + static char *delimiter; + +[[:blank:]]+ { return Normal; } + +"\\". { return Escape; } + +<INITIAL,DQuote,HereDoc,Param,Command,Arith>{ + "$"[*@#?$!0-9-] | + "$"[_[:alpha:][_[:alnum:]]* | + "${"[#]?{param}"}" { + return Subst; + } + "${"{param} { + BEGIN(push(Param)); + return Subst; + } + "$(" { + BEGIN(push(Command)); + return Subst; + } + "$((" { + BEGIN(push(Arith)); + return Subst; + } + "`" { + BEGIN(push(Backtick)); + return Subst; + } +} +<Param>"}" | +<Command>")" | +<Arith>"))" | +<Backtick>"`" { + BEGIN(pop()); + return Subst; +} + +"\n" { + first = true; + return Normal; +} +[&();|]|"&&"|";;"|"||" { + first = true; + return Operator; +} +[0-9]?([<>]"&"?|">|"|">>"|"<>") { + return Operator; +} + +{reserved} { + if (first) { + first = false; + return Keyword; + } + return Normal; +} + +{word}/[[:blank:]]*"()" { return Ident; } + +[0-9]?("<<"|"<<-") { + BEGIN(push(HereDocDel)); + return Operator; +} +<HereDocDel>{ + [[:blank:]]+ { return Normal; } + {word} { + delimiter = strdup(yytext); + assert(delimiter); + BEGIN(pop(), push(HereDoc)); + return Ident; + } + "'"{word}"'" { + delimiter = strndup(&yytext[1], strlen(yytext)-2); + assert(delimiter); + BEGIN(pop(), push(HereDocLit)); + return Ident; + } +} +<HereDoc,HereDocLit>{ + ^"\t"*{word} { + if (strcmp(&yytext[strspn(yytext, "\t")], delimiter)) REJECT; + free(delimiter); + BEGIN(pop()); + return Ident; + } +} +<HereDoc>{ + [^$`\n]+ { return String; } + .|\n { return String; } +} +<HereDocLit>{ + .*\n { return String; } +} + +"'"[^'']*"'" { return String; } + +"\""/[^$`\\] { + BEGIN(push(DQuote)); + yymore(); +} +"\"" { + BEGIN(push(DQuote)); + return String; +} + +<DQuote>{ + [^\\$`""]*"\"" { + BEGIN(pop()); + return String; + } + "\\"[$`""\\\n] { return Escape; } + [^\\$`""]+|. { return String; } +} + +<INITIAL,Command,Backtick,Arith>"#".* { return Comment; } + +{word} { + first = false; + return Normal; +} + +.|\n { return Normal; } + +%{ + (void)yyunput; + (void)input; +%} + +%% + +const struct Lexer LexSh = { yylex, &yyin, &yytext }; diff --git a/bin/shotty.c b/bin/shotty.c new file mode 100644 index 00000000..83b00313 --- /dev/null +++ b/bin/shotty.c @@ -0,0 +1,648 @@ +/* Copyright (C) 2019 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <assert.h> +#include <err.h> +#include <locale.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/ioctl.h> +#include <sysexits.h> +#include <unistd.h> +#include <wchar.h> + +#define BIT(x) x##Bit, x = 1 << x##Bit, x##Bit_ = x##Bit + +typedef unsigned uint; + +enum { + NUL, SOH, STX, ETX, EOT, ENQ, ACK, BEL, + BS, HT, NL, VT, NP, CR, SO, SI, + DLE, DC1, DC2, DC3, DC4, NAK, SYN, ETB, + CAN, EM, SUB, ESC, FS, GS, RS, US, + DEL = 0x7F, +}; + +enum Attr { + BIT(Bold), + BIT(Dim), + BIT(Italic), + BIT(Underline), + BIT(Blink), + BIT(Reverse), +}; + +struct Style { + enum Attr attr; + int bg, fg; +}; + +struct Cell { + struct Style style; + wchar_t ch; +}; + +static uint rows = 24, cols = 80; +static struct Cell *cells; + +static struct Cell *cell(uint y, uint x) { + assert(y <= rows); + assert(x <= cols); + assert(y * cols + x <= rows * cols); + return &cells[y * cols + x]; +} + +static uint y, x; +static struct Style style = { .bg = -1, .fg = -1 }; + +static struct { + uint y, x; +} save; + +enum { ParamCap = 16 }; +static struct { + uint s[ParamCap]; + uint n, i; +} param; + +static uint p(uint i, uint z) { + return (i < param.n ? param.s[i] : z); +} + +static uint min(uint a, uint b) { + return (a < b ? a : b); +} + +#define _ch ch __attribute__((unused)) +typedef void Action(wchar_t ch); + +static void nop(wchar_t _ch) { +} + +static void csi(wchar_t _ch) { + memset(¶m, 0, sizeof(param)); +} + +static void csiSep(wchar_t _ch) { + if (param.n == ParamCap) return; + if (!param.n) param.n++; + param.n++; + param.i++; +} + +static void csiDigit(wchar_t ch) { + param.s[param.i] *= 10; + param.s[param.i] += ch - L'0'; + if (!param.n) param.n++; +} + +static void bs(wchar_t _ch) { if (x) x--; } +static void ht(wchar_t _ch) { x = min(x - x % 8 + 8, cols - 1); } +static void cr(wchar_t _ch) { x = 0; } +static void cuu(wchar_t _ch) { y -= min(p(0, 1), y); } +static void cud(wchar_t _ch) { y = min(y + p(0, 1), rows - 1); } +static void cuf(wchar_t _ch) { x = min(x + p(0, 1), cols - 1); } +static void cub(wchar_t _ch) { x -= min(p(0, 1), x); } +static void cnl(wchar_t _ch) { x = 0; cud(0); } +static void cpl(wchar_t _ch) { x = 0; cuu(0); } +static void cha(wchar_t _ch) { x = min(p(0, 1) - 1, cols - 1); } +static void vpa(wchar_t _ch) { y = min(p(0, 1) - 1, rows - 1); } +static void cup(wchar_t _ch) { + y = min(p(0, 1) - 1, rows - 1); + x = min(p(1, 1) - 1, cols - 1); +} +static void decsc(wchar_t _ch) { + save.y = y; + save.x = x; +} +static void decrc(wchar_t _ch) { + y = save.y; + x = save.x; +} + +static void move(struct Cell *dst, struct Cell *src, size_t len) { + memmove(dst, src, sizeof(*dst) * len); +} + +static void erase(struct Cell *at, struct Cell *to) { + for (; at < to; ++at) { + at->style = style; + at->ch = L' '; + } +} + +static void ed(wchar_t _ch) { + erase( + (p(0, 0) == 0 ? cell(y, x) : cell(0, 0)), + (p(0, 0) == 1 ? cell(y, x) : cell(rows - 1, cols)) + ); +} +static void el(wchar_t _ch) { + erase( + (p(0, 0) == 0 ? cell(y, x) : cell(y, 0)), + (p(0, 0) == 1 ? cell(y, x) : cell(y, cols)) + ); +} +static void ech(wchar_t _ch) { + erase(cell(y, x), cell(y, min(x + p(0, 1), cols))); +} + +static void dch(wchar_t _ch) { + uint n = min(p(0, 1), cols - x); + move(cell(y, x), cell(y, x + n), cols - x - n); + erase(cell(y, cols - n), cell(y, cols)); +} +static void ich(wchar_t _ch) { + uint n = min(p(0, 1), cols - x); + move(cell(y, x + n), cell(y, x), cols - x - n); + erase(cell(y, x), cell(y, x + n)); +} + +static struct { + uint top, bot; +} scroll; + +static void scrollUp(uint top, uint n) { + n = min(n, scroll.bot - top); + move(cell(top, 0), cell(top + n, 0), cols * (scroll.bot - top - n)); + erase(cell(scroll.bot - n, 0), cell(scroll.bot, 0)); +} + +static void scrollDown(uint top, uint n) { + n = min(n, scroll.bot - top); + move(cell(top + n, 0), cell(top, 0), cols * (scroll.bot - top - n)); + erase(cell(top, 0), cell(top + n, 0)); +} + +static void decstbm(wchar_t _ch) { + scroll.bot = min(p(1, rows), rows); + scroll.top = min(p(0, 1) - 1, scroll.bot); +} + +static void su(wchar_t _ch) { scrollUp(scroll.top, p(0, 1)); } +static void sd(wchar_t _ch) { scrollDown(scroll.top, p(0, 1)); } +static void dl(wchar_t _ch) { scrollUp(min(y, scroll.bot), p(0, 1)); } +static void il(wchar_t _ch) { scrollDown(min(y, scroll.bot), p(0, 1)); } + +static void nl(wchar_t _ch) { + if (y + 1 == scroll.bot) { + scrollUp(scroll.top, 1); + } else { + y = min(y + 1, rows - 1); + } +} +static void ri(wchar_t _ch) { + if (y == scroll.top) { + scrollDown(scroll.top, 1); + } else { + if (y) y--; + } +} + +static enum Mode { + BIT(Insert), + BIT(Wrap), + BIT(Cursor), +} mode = Wrap | Cursor; + +static enum Mode paramMode(void) { + enum Mode mode = 0; + for (uint i = 0; i < param.n; ++i) { + switch (param.s[i]) { + break; case 4: mode |= Insert; + break; default: warnx("unhandled SM/RM %u", param.s[i]); + } + } + return mode; +} + +static enum Mode paramDECMode(void) { + enum Mode mode = 0; + for (uint i = 0; i < param.n; ++i) { + switch (param.s[i]) { + break; case 1: // DECCKM + break; case 7: mode |= Wrap; + break; case 12: // "Start Blinking Cursor" + break; case 25: mode |= Cursor; + break; default: { + if (param.s[i] < 1000) { + warnx("unhandled DECSET/DECRST %u", param.s[i]); + } + } + } + } + return mode; +} + +static void sm(wchar_t _ch) { mode |= paramMode(); } +static void rm(wchar_t _ch) { mode &= ~paramMode(); } +static void decset(wchar_t _ch) { mode |= paramDECMode(); } +static void decrst(wchar_t _ch) { mode &= ~paramDECMode(); } + +enum { + Reset, + SetBold, + SetDim, + SetItalic, + SetUnderline, + SetBlink, + SetReverse = 7, + + UnsetBoldDim = 22, + UnsetItalic, + UnsetUnderline, + UnsetBlink, + UnsetReverse = 27, + + SetFg0 = 30, + SetFg7 = 37, + SetFg, + ResetFg, + SetBg0 = 40, + SetBg7 = 47, + SetBg, + ResetBg, + + SetFg8 = 90, + SetFgF = 97, + SetBg8 = 100, + SetBgF = 107, + + Color256 = 5, +}; + +static void sgr(wchar_t _ch) { + uint n = param.i + 1; + for (uint i = 0; i < n; ++i) { + switch (param.s[i]) { + break; case Reset: style = (struct Style) { .bg = -1, .fg = -1 }; + + break; case SetBold: style.attr |= Bold; style.attr &= ~Dim; + break; case SetDim: style.attr |= Dim; style.attr &= ~Bold; + break; case SetItalic: style.attr |= Italic; + break; case SetUnderline: style.attr |= Underline; + break; case SetBlink: style.attr |= Blink; + break; case SetReverse: style.attr |= Reverse; + + break; case UnsetBoldDim: style.attr &= ~(Bold | Dim); + break; case UnsetItalic: style.attr &= ~Italic; + break; case UnsetUnderline: style.attr &= ~Underline; + break; case UnsetBlink: style.attr &= ~Blink; + break; case UnsetReverse: style.attr &= ~Reverse; + + break; case SetFg: { + if (++i < n && param.s[i] == Color256) { + if (++i < n) style.fg = param.s[i]; + } + } + break; case SetBg: { + if (++i < n && param.s[i] == Color256) { + if (++i < n) style.bg = param.s[i]; + } + } + + break; case ResetFg: style.fg = -1; + break; case ResetBg: style.bg = -1; + + break; default: { + uint p = param.s[i]; + if (p >= SetFg0 && p <= SetFg7) { + style.fg = p - SetFg0; + } else if (p >= SetBg0 && p <= SetBg7) { + style.bg = p - SetBg0; + } else if (p >= SetFg8 && p <= SetFgF) { + style.fg = 8 + p - SetFg8; + } else if (p >= SetBg8 && p <= SetBgF) { + style.bg = 8 + p - SetBg8; + } else { + warnx("unhandled SGR %u", p); + } + } + } + } +} + +static enum { + USASCII, + DECSpecial, +} charset; + +static void usascii(wchar_t _ch) { charset = USASCII; } +static void decSpecial(wchar_t _ch) { charset = DECSpecial; } + +static const wchar_t AltCharset[128] = { + ['`'] = L'â—†', ['a'] = L'â–’', ['f'] = L'°', ['g'] = L'±', ['i'] = L'â‹', + ['j'] = L'┘', ['k'] = L'â”', ['l'] = L'┌', ['m'] = L'â””', ['n'] = L'┼', + ['o'] = L'⎺', ['p'] = L'⎻', ['q'] = L'─', ['r'] = L'⎼', ['s'] = L'⎽', + ['t'] = L'├', ['u'] = L'┤', ['v'] = L'â”´', ['w'] = L'┬', ['x'] = L'│', + ['y'] = L'≤', ['z'] = L'≥', ['{'] = L'Ï€', ['|'] = L'≠', ['}'] = L'£', + ['~'] = L'·', +}; + +static void add(wchar_t ch) { + if (charset == DECSpecial && ch < 128 && AltCharset[ch]) { + ch = AltCharset[ch]; + } + + int width = wcwidth(ch); + if (width < 0) { + warnx("unhandled \\u%02X", ch); + return; + } + + if (mode & Insert) { + uint n = min(width, cols - x); + move(cell(y, x + n), cell(y, x), cols - x - n); + } + if (mode & Wrap && x + width > cols) { + cr(0); + nl(0); + } + + cell(y, x)->style = style; + cell(y, x)->ch = ch; + for (int i = 1; i < width && x + i < cols; ++i) { + cell(y, x + i)->style = style; + cell(y, x + i)->ch = L'\0'; + } + x = min(x + width, (mode & Wrap ? cols : cols - 1)); +} + +static void html(void); +static void mc(wchar_t _ch) { + if (p(0, 0) == 10) { + html(); + } else { + warnx("unhandled CSI %u MC", p(0, 0)); + } +} + +static enum { + Data, + Esc, + G0, + CSI, + CSILt, + CSIEq, + CSIGt, + CSIQm, + CSIInter, + OSC, + OSCEsc, +} state; + +static void escDefault(wchar_t ch) { + warnx("unhandled ESC %lc", ch); +} + +static void g0Default(wchar_t ch) { + warnx("unhandled G0 %lc", ch); + charset = USASCII; +} + +static void csiInter(wchar_t ch) { + switch (state) { + break; case CSI: warnx("unhandled CSI %lc ...", ch); + break; case CSILt: warnx("unhandled CSI < %lc ...", ch); + break; case CSIEq: warnx("unhandled CSI = %lc ...", ch); + break; case CSIGt: warnx("unhandled CSI > %lc ...", ch); + break; case CSIQm: warnx("unhandled CSI ? %lc ...", ch); + break; default: abort(); + } +} + +static void csiFinal(wchar_t ch) { + switch (state) { + break; case CSI: warnx("unhandled CSI %lc", ch); + break; case CSILt: warnx("unhandled CSI < %lc", ch); + break; case CSIEq: warnx("unhandled CSI = %lc", ch); + break; case CSIGt: warnx("unhandled CSI > %lc", ch); + break; case CSIQm: warnx("unhandled CSI ? %lc", ch); + break; case CSIInter: warnx("unhandled CSI ... %lc", ch); + break; default: abort(); + } +} + +#define S(s) break; case s: switch (ch) +#define A(c, a, s) break; case c: a(ch); state = s +#define D(a, s) break; default: a(ch); state = s +static void update(wchar_t ch) { + switch (state) { + default: abort(); + + S(Data) { + A(BEL, nop, Data); + A(BS, bs, Data); + A(HT, ht, Data); + A(NL, nl, Data); + A(CR, cr, Data); + A(ESC, nop, Esc); + D(add, Data); + } + + S(Esc) { + A('(', nop, G0); + A('7', decsc, Data); + A('8', decrc, Data); + A('=', nop, Data); + A('>', nop, Data); + A('M', ri, Data); + A('[', csi, CSI); + A(']', nop, OSC); + D(escDefault, Data); + } + S(G0) { + A('0', decSpecial, Data); + A('B', usascii, Data); + D(g0Default, Data); + } + + S(CSI) { + A(' ' ... '/', csiInter, CSIInter); + A('0' ... '9', csiDigit, CSI); + A(':', nop, CSI); + A(';', csiSep, CSI); + A('<', nop, CSILt); + A('=', nop, CSIEq); + A('>', nop, CSIGt); + A('?', nop, CSIQm); + A('@', ich, Data); + A('A', cuu, Data); + A('B', cud, Data); + A('C', cuf, Data); + A('D', cub, Data); + A('E', cnl, Data); + A('F', cpl, Data); + A('G', cha, Data); + A('H', cup, Data); + A('J', ed, Data); + A('K', el, Data); + A('L', il, Data); + A('M', dl, Data); + A('P', dch, Data); + A('S', su, Data); + A('T', sd, Data); + A('X', ech, Data); + A('d', vpa, Data); + A('h', sm, Data); + A('i', mc, Data); + A('l', rm, Data); + A('m', sgr, Data); + A('r', decstbm, Data); + A('t', nop, Data); + D(csiFinal, Data); + } + + S(CSILt ... CSIGt) { + A(' ' ... '/', csiInter, CSIInter); + A('0' ... '9', csiDigit, state); + A(':', nop, state); + A(';', csiSep, state); + D(csiFinal, Data); + } + + S(CSIQm) { + A(' ' ... '/', csiInter, CSIInter); + A('0' ... '9', csiDigit, CSIQm); + A(':', nop, CSIQm); + A(';', csiSep, CSIQm); + A('h', decset, Data); + A('l', decrst, Data); + D(csiFinal, Data); + } + + S(CSIInter) { + D(csiFinal, Data); + } + + S(OSC) { + A(BEL, nop, Data); + A(ESC, nop, OSCEsc); + D(nop, OSC); + } + S(OSCEsc) { + A('\\', nop, Data); + D(nop, OSC); + } + } +} + +static bool bright; +static int defaultBg = 0; +static int defaultFg = 7; + +static void span(const struct Style *prev, const struct Cell *cell) { + struct Style style = cell->style; + if (!prev || memcmp(prev, &style, sizeof(*prev))) { + if (prev) printf("</span>"); + if (style.bg < 0) style.bg = defaultBg; + if (style.fg < 0) style.fg = defaultFg; + if (bright && style.attr & Bold) { + if (style.fg < 8) style.fg += 8; + style.attr ^= Bold; + } + printf( + "<span style=\"%s%s%s\" class=\"bg%u fg%u\">", + (style.attr & Bold ? "font-weight:bold;" : ""), + (style.attr & Italic ? "font-style:italic;" : ""), + (style.attr & Underline ? "text-decoration:underline;" : ""), + (style.attr & Reverse ? style.fg : style.bg), + (style.attr & Reverse ? style.bg : style.fg) + ); + } + switch (cell->ch) { + break; case '&': printf("&"); + break; case '<': printf("<"); + break; case '>': printf(">"); + break; default: printf("%lc", (wint_t)cell->ch); + } +} + +static bool mediaCopy; +static void html(void) { + mediaCopy = true; + if (mode & Cursor) cell(y, x)->style.attr ^= Reverse; + printf( + "<pre style=\"width: %uch;\" class=\"bg%u fg%u\">", + cols, defaultBg, defaultFg + ); + for (uint y = 0; y < rows; ++y) { + for (uint x = 0; x < cols; ++x) { + if (!cell(y, x)->ch) continue; + span(x ? &cell(y, x - 1)->style : NULL, cell(y, x)); + } + printf("</span>\n"); + } + printf("</pre>\n"); + if (mode & Cursor) cell(y, x)->style.attr ^= Reverse; +} + +int main(int argc, char *argv[]) { + setlocale(LC_CTYPE, ""); + + bool debug = false; + bool size = false; + bool hide = false; + + int opt; + while (0 < (opt = getopt(argc, argv, "Bb:df:h:nsw:"))) { + switch (opt) { + break; case 'B': bright = true; + break; case 'b': defaultBg = strtol(optarg, NULL, 0); + break; case 'd': debug = true; + break; case 'f': defaultFg = strtol(optarg, NULL, 0); + break; case 'h': rows = strtoul(optarg, NULL, 0); + break; case 'n': hide = true; + break; case 's': size = true; + break; case 'w': cols = strtoul(optarg, NULL, 0); + break; default: return EX_USAGE; + } + } + + FILE *file = stdin; + if (optind < argc) { + file = fopen(argv[optind], "r"); + if (!file) err(EX_NOINPUT, "%s", argv[optind]); + } + + if (size) { + struct winsize window; + int error = ioctl(STDERR_FILENO, TIOCGWINSZ, &window); + if (error) err(EX_IOERR, "ioctl"); + rows = window.ws_row; + cols = window.ws_col; + } + scroll.bot = rows; + + cells = calloc(rows * cols, sizeof(*cells)); + if (!cells) err(EX_OSERR, "calloc"); + erase(cell(0, 0), cell(rows - 1, cols)); + + wint_t ch; + while (WEOF != (ch = getwc(file))) { + uint prev = state; + update(ch); + if (debug && state != prev && state == Data) html(); + } + if (ferror(file)) err(EX_IOERR, "getwc"); + + if (!mediaCopy) { + if (hide) mode &= ~Cursor; + html(); + } +} diff --git a/bin/sup.sh b/bin/sup.sh new file mode 100644 index 00000000..b7f28bc7 --- /dev/null +++ b/bin/sup.sh @@ -0,0 +1,169 @@ +#!/bin/sh +set -eu + +service=$1 +email=${2:-$(git config fetchemail.imapUser)} + +generate() { + openssl rand -base64 33 +} +copy() { + printf '%s' "$1" | pbcopy +} + +asciinema() { + echo 'Fetching CSRF token...' + jar=$(mktemp -t sup) + trap 'rm "${jar}"' EXIT + csrf=$( + curl -Ss -c "${jar}" 'https://asciinema.org/login/new' | + sed -n 's/.*name="_csrf_token".*value="\([^"]*\)".*/\1/p' + ) + echo 'Submitting form...' + curl -Ss -X POST -b "${jar}" \ + -F "_csrf_token=${csrf}" -F "login[email]=${email}" \ + 'https://asciinema.org/login' \ + >/dev/null + echo 'Waiting for email...' + url=$( + git fetch-email -i -M Trash \ + -F 'hello@asciinema.org' -T "${email}" \ + -S 'Login to asciinema.org' | + grep -m 1 '^https://asciinema\.org/session/new' + ) + open "${url}" +} + +bugzilla() { + echo 'Fetching CSRF token...' + csrf=$( + curl -Ss "${bugzillaBase}/" | + sed -n ' + /name="token"/N + s/.*name="token"[[:space:]]*value="\([^"]*\)".*/\1/p + ' | head -n 1 + ) + echo 'Submitting form...' + curl -Ss -X POST \ + -F "loginname=${email}" -F "token=${csrf}" -F 'a=reqpw' \ + "${bugzillaBase}/token.cgi" \ + >/dev/null + echo 'Waiting for email...' + token=$( + git fetch-email -i -M Trash \ + -F "${bugzillaFrom}" -T "${email}" \ + -S 'Bugzilla Change Password Request' | + sed -n 's/.*t=3D\([^&]*\).*/\1/p' | + head -n 1 + ) + password=$(generate) + echo 'Setting password...' + curl -Ss -X POST \ + -F "t=${token}" -F 'a=chgpw' \ + -F "password=${password}" -F "matchpassword=${password}" \ + "${bugzillaBase}/token.cgi" \ + >/dev/null + copy "${password}" + open "${bugzillaBase}/" +} + +freebsdbugzilla() { + bugzillaBase='https://bugs.freebsd.org/bugzilla' + bugzillaFrom='bugzilla-noreply@freebsd.org' + bugzilla +} + +discogs() { + echo 'Submitting form...' + curl -Ss -X POST \ + -F "email=${email}" -F 'Action.EmailResetInstructions=submit' \ + 'https://www.discogs.com/users/forgot_password' \ + >/dev/null + echo 'Waiting for email...' + url=$( + git fetch-email -i -M Trash \ + -F 'noreply@discogs.com' -T "${email}" \ + -S 'Discogs Account Password Reset Instructions' | + sed -n 's/^To proceed, follow the instructions here: \(.*\)/\1/p' + ) + echo 'Fetching token...' + token=$(curl -ISs --url "${url}" | sed -n 's/.*[?]token=\([^&]*\).*/\1/p') + password=$(generate) + echo 'Setting password...' + curl -Ss -X POST \ + -F "token=${token}" \ + -F "password0=${password}" -F "password1=${password}" \ + -F 'Action.ChangePassword=submit' \ + 'https://www.discogs.com/users/forgot_password' \ + >/dev/null + copy "${password}" + open 'https://discogs.com/login' +} + +liberapay() { + echo 'Fetching CSRF token...' + csrf=$( + curl -Ss 'https://liberapay.com/sign-in' | + sed -n 's/.*name="csrf_token".*value="\([^"]*\)".*/\1/p' + ) + echo 'Submitting form...' + curl -Ss -X POST \ + -b "csrf_token=${csrf}" -F "csrf_token=${csrf}" \ + -F "log-in.id=${email}" \ + 'https://liberapay.com/sign-in' \ + >/dev/null + echo 'Waiting for email...' + url=$( + git fetch-email -i -M Trash \ + -F 'support@liberapay.com' -T "${email}" \ + -S 'Log in to Liberapay' | + grep -m 1 '^https://liberapay\.com/' + ) + open "${url}" +} + +lobsters() { + : ${lobstersBase:=https://lobste.rs} + : ${lobstersFrom:=nobody@lobste.rs} + echo 'Fetching CSRF token...' + csrf=$( + curl -Ss "${lobstersBase}/login/forgot_password" | + sed -n 's/.*name="authenticity_token" value="\([^"]*\)".*/\1/p' + ) + echo 'Submitting form...' + curl -Ss -X POST \ + -F "authenticity_token=${csrf}" \ + -F "email=${email}" -F 'commit=submit' \ + "${lobstersBase}/login/reset_password" \ + >/dev/null + echo 'Waiting for email...' + token=$( + git fetch-email -i -M Trash \ + -F "${lobstersFrom}" -T "${email}" \ + -S 'Reset your password' | + sed -n 's|^https://.*[?]token=\(.*\)|\1|p' + ) + echo 'Fetching CSRF token...' + csrf=$( + curl -Ss "${lobstersBase}/login/set_new_password?token=${token}" | + sed -n 's/.*name="authenticity_token" value="\([^"]*\)".*/\1/p' + ) + password=$(generate) + echo 'Setting password...' + curl -Ss -X POST \ + -F "authenticity_token=${csrf}" -F "token=${token}" \ + -F "password=${password}" -F "password_confirmation=${password}" \ + -F 'commit=submit' \ + "${lobstersBase}/login/set_new_password" \ + >/dev/null + copy "${password}" + open "${lobstersBase}/login" +} + +tildenews() { + lobstersBase='https://tilde.news' + lobstersFrom='nobody@tilde.news' + lobsters +} + +$service diff --git a/bin/title.c b/bin/title.c new file mode 100644 index 00000000..82f89d95 --- /dev/null +++ b/bin/title.c @@ -0,0 +1,211 @@ +/* Copyright (C) 2019 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <curl/curl.h> +#include <err.h> +#include <locale.h> +#include <regex.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sysexits.h> +#include <unistd.h> +#include <wchar.h> + +static regex_t regex(const char *pattern, int flags) { + regex_t regex; + int error = regcomp(®ex, pattern, REG_EXTENDED | flags); + if (!error) return regex; + + char buf[256]; + regerror(error, ®ex, buf, sizeof(buf)); + errx(EX_SOFTWARE, "regcomp: %s: %s", buf, pattern); +} + +static const struct Entity { + wchar_t ch; + const char *name; +} Entities[] = { + { L'"', """ }, + { L'&', "&" }, + { L'<', "<" }, + { L'>', ">" }, + { L'â¤', " " }, +}; + +static wchar_t entity(const char *name) { + for (size_t i = 0; i < sizeof(Entities) / sizeof(Entities[0]); ++i) { + struct Entity entity = Entities[i]; + if (strncmp(name, entity.name, strlen(entity.name))) continue; + return entity.ch; + } + if (!strncmp(name, "&#x", 3)) return strtoul(&name[3], NULL, 16); + if (!strncmp(name, "&#", 2)) return strtoul(&name[2], NULL, 10); + return 0; +} + +static const char EntityPattern[] = { + "[[:space:]]+|&([[:alpha:]]+|#([[:digit:]]+|x[[:xdigit:]]+));" +}; +static regex_t EntityRegex; + +static void showTitle(const char *title) { + regmatch_t match = {0}; + for (; *title; title += match.rm_eo) { + if (regexec(&EntityRegex, title, 1, &match, 0)) break; + if (title[match.rm_so] != '&') { + printf("%.*s ", (int)match.rm_so, title); + continue; + } + wchar_t ch = entity(&title[match.rm_so]); + if (ch) { + printf("%.*s%lc", (int)match.rm_so, title, (wint_t)ch); + } else { + printf("%.*s", (int)match.rm_eo, title); + } + } + printf("%s\n", title); +} + +static CURL *curl; +static bool title; +static struct { + char buf[64 * 1024]; + size_t len; +} body; + +// HE COMES +static const char TitlePattern[] = "<title>([^<]*)</title>"; +static regex_t TitleRegex; + +static size_t handleBody(char *buf, size_t size, size_t nitems, void *user) { + (void)user; + size_t len = size * nitems; + size_t cap = sizeof(body.buf) - body.len - 1; + size_t new = (len < cap ? len : cap); + if (title || !new) return len; + + memcpy(&body.buf[body.len], buf, new); + body.len += new; + body.buf[body.len] = '\0'; + + regmatch_t match[2]; + if (regexec(&TitleRegex, body.buf, 2, match, 0)) return len; + body.buf[match[1].rm_eo] = '\0'; + showTitle(&body.buf[match[1].rm_so]); + title = true; + + return len; +} + +static CURLcode fetchTitle(const char *url) { + CURLcode code = curl_easy_setopt(curl, CURLOPT_URL, url); + if (code) return code; + + curl_easy_setopt(curl, CURLOPT_NOBODY, 1L); + code = curl_easy_perform(curl); + if (code) return code; + + char *type; + code = curl_easy_getinfo(curl, CURLINFO_CONTENT_TYPE, &type); + if (code) return code; + if (!type || strncmp(type, "text/html", 9)) return CURLE_OK; + + char *dest; + curl_easy_getinfo(curl, CURLINFO_EFFECTIVE_URL, &dest); + dest = strdup(dest); + if (!dest) err(EX_OSERR, "strdup"); + + code = curl_easy_setopt(curl, CURLOPT_URL, dest); + if (code) return code; + free(dest); + + body.len = 0; + title = false; + curl_easy_setopt(curl, CURLOPT_HTTPGET, 1L); + code = curl_easy_perform(curl); + return code; +} + +int main(int argc, char *argv[]) { + EntityRegex = regex(EntityPattern, 0); + TitleRegex = regex(TitlePattern, REG_ICASE); + + setlocale(LC_CTYPE, ""); + setlinebuf(stdout); + + CURLcode code = curl_global_init(CURL_GLOBAL_ALL); + if (code) errx(EX_OSERR, "curl_global_init: %s", curl_easy_strerror(code)); + + curl = curl_easy_init(); + if (!curl) errx(EX_SOFTWARE, "curl_easy_init"); + + static char error[CURL_ERROR_SIZE]; + curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, error); + + curl_easy_setopt(curl, CURLOPT_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS); + curl_easy_setopt( + curl, CURLOPT_USERAGENT, + "curl/7.54.0 facebookexternalhit/1.1 Twitterbot/1.0" + ); + curl_easy_setopt(curl, CURLOPT_ACCEPT_ENCODING, ""); + curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L); + curl_easy_setopt(curl, CURLOPT_MAXREDIRS, 3L); + curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1L); + + curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, handleBody); + + bool exclude = false; + regex_t excludeRegex; + + int opt; + while (0 < (opt = getopt(argc, argv, "x:v"))) { + switch (opt) { + break; case 'x': { + exclude = true; + excludeRegex = regex(optarg, REG_NOSUB); + } + break; case 'v': curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L); + break; default: return EX_USAGE; + } + } + + if (optind < argc) { + code = fetchTitle(argv[optind]); + if (!code) return EX_OK; + errx(EX_DATAERR, "curl_easy_perform: %s", error); + } + + char *buf = NULL; + size_t cap = 0; + + regex_t urlRegex = regex("https?://([^[:space:]>\"()]|[(][^)]*[)])+", 0); + while (0 < getline(&buf, &cap, stdin)) { + regmatch_t match = {0}; + for (char *ptr = buf; *ptr; ptr += match.rm_eo) { + if (regexec(&urlRegex, ptr, 1, &match, 0)) break; + ptr[match.rm_eo] = '\0'; + const char *url = &ptr[match.rm_so]; + if (!exclude || regexec(&excludeRegex, url, 0, NULL, 0)) { + code = fetchTitle(url); + if (code) warnx("curl_easy_perform: %s", error); + } + ptr[match.rm_eo] = ' '; + } + } + if (ferror(stdin)) err(EX_IOERR, "getline"); +} diff --git a/bin/typer.c b/bin/typer.c new file mode 100644 index 00000000..76eab784 --- /dev/null +++ b/bin/typer.c @@ -0,0 +1,197 @@ +/* Copyright (C) 2021 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * Additional permission under GNU GPL version 3 section 7: + * + * If you modify this Program, or any covered work, by linking or + * combining it with LibreSSL (or a modified version of that library), + * containing parts covered by the terms of the OpenSSL License and the + * original SSLeay license, the licensors of this Program grant you + * additional permission to convey the resulting work. Corresponding + * Source for a non-source form of such a combination shall include the + * source code for the parts of LibreSSL used as well as that of the + * covered work. + */ + +#include <err.h> +#include <signal.h> +#include <stdarg.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/time.h> +#include <sysexits.h> +#include <tls.h> +#include <unistd.h> + +static bool verbose; +static struct tls *client; +static const char *chan; + +static void clientWrite(const char *ptr, size_t len) { + if (verbose) printf("%.*s", (int)len, ptr); + while (len) { + ssize_t ret = tls_write(client, ptr, len); + if (ret == TLS_WANT_POLLIN || ret == TLS_WANT_POLLOUT) continue; + if (ret < 0) errx(EX_IOERR, "tls_write: %s", tls_error(client)); + ptr += ret; + len -= ret; + } +} + +static void format(const char *format, ...) { + char buf[1024]; + va_list ap; + va_start(ap, format); + int len = vsnprintf(buf, sizeof(buf), format, ap); + va_end(ap); + if ((size_t)len > sizeof(buf) - 1) errx(EX_DATAERR, "message too large"); + clientWrite(buf, len); +} + +static bool joined; +static bool reverse; +static bool copy; + +static void handle(char *line) { + char *tags = NULL; + char *origin = NULL; + if (line && line[0] == '@') tags = 1 + strsep(&line, " "); + if (line && line[0] == ':') origin = 1 + strsep(&line, " "); + char *cmd = strsep(&line, " "); + if (!cmd) return; + if (!strcmp(cmd, "CAP")) { + char *param = strsep(&cmd, " "); + if (!param) errx(EX_PROTOCOL, "CAP missing parameter"); + if (!strcmp(param, "NAK")) { + errx(EX_CONFIG, "server does not support message-tags"); + } + format("CAP END\r\n"); + } else if (!strcmp(cmd, "001")) { + format("JOIN %s\r\n", chan); + joined = true; + } else if (!strcmp(cmd, "PING")) { + format("PONG %s\r\n", line); + } else if (copy && !strcmp(cmd, "TAGMSG") && tags) { + if (strstr(tags, "typing=")) { + format("@%s TAGMSG %s\r\n", tags, chan); + } + } else if (reverse && !strcmp(cmd, "TAGMSG") && tags && origin) { + char *nick = strsep(&origin, "!"); + if (strstr(tags, "typing=active")) { + format("PRIVMSG %s :\u2328\uFE0F %s is typing!\r\n", chan, nick); + } else if (strstr(tags, "typing=paused")) { + format("PRIVMSG %s :\U0001F914 %s is thinking!\r\n", chan, nick); + } else if (strstr(tags, "typing=done")) { + format("PRIVMSG %s :\u270B %s stopped typing!\r\n", chan, nick); + } + } +} + +static void timer(int sig) { + (void)sig; + if (!joined) return; + const char *status = (arc4random_uniform(4) ? "active" : "done"); + format( + "@+typing=%s;+draft/typing=%s TAGMSG %s\r\n", + status, status, chan + ); +} + +int main(int argc, char *argv[]) { + const char *host = NULL; + const char *port = "6697"; + const char *cert = NULL; + const char *nick = "typer"; + const char *user = "typer"; + bool passive = false; + + for (int opt; 0 < (opt = getopt(argc, argv, "CPRc:n:p:u:v"));) { + switch (opt) { + break; case 'C': copy = true; + break; case 'P': passive = true; + break; case 'R': reverse = true; + break; case 'c': cert = optarg; + break; case 'n': nick = optarg; + break; case 'p': port = optarg; + break; case 'u': user = optarg; + break; case 'v': verbose = true; + break; default: return EX_USAGE; + } + } + if (argc - optind < 2) errx(EX_USAGE, "host and chan required"); + host = argv[optind]; + chan = argv[optind + 1]; + + client = tls_client(); + if (!client) errx(EX_SOFTWARE, "tls_client"); + + struct tls_config *config = tls_config_new(); + if (!config) errx(EX_SOFTWARE, "tls_config_new"); + + if (cert) { + int error = tls_config_set_keypair_file(config, cert, cert); + if (error) errx(EX_CONFIG, "%s: %s", cert, tls_config_error(config)); + } + + int error = tls_configure(client, config); + if (error) errx(EX_SOFTWARE, "tls_configure: %s", tls_error(client)); + tls_config_free(config); + + error = tls_connect(client, host, port); + if (error) errx(EX_UNAVAILABLE, "tls_connect: %s", tls_error(client)); + + format( + "CAP REQ :message-tags%s\r\n" + "NICK %s\r\n" + "USER %s 0 * :typer\r\n", + (passive ? " causal.agency/passive" : ""), + nick, user + ); + + if (!copy && !reverse) { + signal(SIGALRM, timer); + struct itimerval itimer = { + .it_interval.tv_sec = 5, + .it_value.tv_sec = 5 + }; + error = setitimer(ITIMER_REAL, &itimer, NULL); + if (error) err(EX_OSERR, "setitimer"); + } + + size_t len = 0; + char buf[4096]; + for (;;) { + ssize_t read = tls_read(client, &buf[len], sizeof(buf) - len); + if (read == TLS_WANT_POLLIN || read == TLS_WANT_POLLOUT) continue; + if (read < 0) errx(EX_IOERR, "tls_read: %s", tls_error(client)); + if (!read) errx(EX_UNAVAILABLE, "server disconnected"); + len += read; + + char *crlf; + char *line = buf; + for (;;) { + crlf = memmem(line, &buf[len] - line, "\r\n", 2); + if (!crlf) break; + crlf[0] = '\0'; + if (verbose) printf("%s\n", line); + handle(line); + line = &crlf[2]; + } + len -= line - buf; + memmove(buf, line, len); + } +} diff --git a/bin/up.sh b/bin/up.sh new file mode 100644 index 00000000..f55213d4 --- /dev/null +++ b/bin/up.sh @@ -0,0 +1,80 @@ +#!/bin/sh +set -eu + +readonly Host='temp.causal.agency' + +upload() { + local src ext ts rand url + src=$1 + ext=${src##*.} + ts=$(date +'%s') + rand=$(openssl rand -hex 4) + url=$(printf '%s/%x%s.%s' "$Host" "$ts" "$rand" "$ext") + scp -q "$src" "${Host}:/usr/local/www/${url}" + echo "https://${url}" +} + +temp() { + temp=$(mktemp -d) + trap "rm -r '$temp'" EXIT +} + +uploadText() { + temp + cat > "${temp}/input.txt" + upload "${temp}/input.txt" +} + +uploadCommand() { + temp + echo "$ $*" > "${temp}/exec.txt" + "$@" >> "${temp}/exec.txt" 2>&1 || true + upload "${temp}/exec.txt" +} + +uploadHilex() { + temp + hilex -f html -o document,tab=4 "$@" > "${temp}/hilex.html" + upload "${temp}/hilex.html" +} + +uploadScreen() { + temp + if type screencapture >/dev/null; then + screencapture -i "$@" "${temp}/capture.png" + else + scrot -s "$@" "${temp}/capture.png" + fi + pngo "${temp}/capture.png" || true + upload "${temp}/capture.png" +} + +uploadTerminal() { + temp + cat > "${temp}/term.html" <<-EOF + <!DOCTYPE html> + <title>${1}</title> + <style> + $(scheme -s) + </style> + EOF + ptee "$@" | shotty -Bs >> "${temp}/term.html" + upload "${temp}/term.html" +} + +while getopts 'chst' opt; do + case "$opt" in + (c) fn=uploadCommand;; + (h) fn=uploadHilex;; + (s) fn=uploadScreen;; + (t) fn=uploadTerminal;; + (?) exit 1;; + esac +done +shift $((OPTIND - 1)) +[ $# -eq 0 ] && : ${fn:=uploadText} +: ${fn:=upload} + +url=$($fn "$@") +printf '%s' "$url" | pbcopy || true +echo "$url" diff --git a/bin/when.y b/bin/when.y new file mode 100644 index 00000000..5367b3b3 --- /dev/null +++ b/bin/when.y @@ -0,0 +1,250 @@ +/* Copyright (C) 2019 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +%{ + +#include <ctype.h> +#include <err.h> +#include <stdio.h> +#include <stdlib.h> +#include <strings.h> +#include <sysexits.h> +#include <time.h> + +static void yyerror(const char *str); +static int yylex(void); + +#define YYSTYPE struct tm + +static const char *Days[7] = { + "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", +}; + +static const char *Months[12] = { + "Jan", "Feb", "Mar", "Apr", "May", "Jun", + "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", +}; + +static const struct tm Week = { .tm_mday = 7 }; + +static struct tm normalize(struct tm date) { + time_t time = timegm(&date); + struct tm *norm = gmtime(&time); + if (!norm) err(EX_OSERR, "gmtime"); + return *norm; +} + +static struct tm today(void) { + time_t now = time(NULL); + struct tm *local = localtime(&now); + if (!local) err(EX_OSERR, "localtime"); + struct tm date = { + .tm_year = local->tm_year, + .tm_mon = local->tm_mon, + .tm_mday = local->tm_mday, + }; + return normalize(date); +} + +static struct tm monthDay(int month, int day) { + struct tm date = today(); + date.tm_mon = month; + date.tm_mday = day; + return normalize(date); +} + +static struct tm monthDayYear(int month, int day, int year) { + struct tm date = today(); + date.tm_mon = month; + date.tm_mday = day; + date.tm_year = year - 1900; + return normalize(date); +} + +static struct tm weekDay(int day) { + struct tm date = today(); + date.tm_mday += day - date.tm_wday; + return normalize(date); +} + +static struct tm scalarAdd(struct tm a, struct tm b) { + a.tm_mday += b.tm_mday; + a.tm_mon += b.tm_mon; + a.tm_year += b.tm_year; + return a; +} + +static struct tm scalarSub(struct tm a, struct tm b) { + a.tm_mday -= b.tm_mday; + a.tm_mon -= b.tm_mon; + a.tm_year -= b.tm_year; + return a; +} + +static struct tm dateAdd(struct tm date, struct tm scalar) { + return normalize(scalarAdd(date, scalar)); +} + +static struct tm dateSub(struct tm date, struct tm scalar) { + return normalize(scalarSub(date, scalar)); +} + +static struct tm dateDiff(struct tm a, struct tm b) { + struct tm diff = { + .tm_year = a.tm_year - b.tm_year, + .tm_mon = a.tm_mon - b.tm_mon, + .tm_mday = a.tm_mday - b.tm_mday, + }; + if (a.tm_mon < b.tm_mon) { + diff.tm_year--; + diff.tm_mon += 12; + } + if (a.tm_mday < b.tm_mday) { + diff.tm_mon--; + diff.tm_mday = 0; + while (dateAdd(b, diff).tm_mday != a.tm_mday) diff.tm_mday++; + } + time_t atime = timegm(&a), btime = timegm(&b); + diff.tm_yday = (atime - btime) / 24 / 60 / 60; + return diff; +} + +static void printDate(struct tm date) { + printf( + "%s %s %d %d\n", + Days[date.tm_wday], Months[date.tm_mon], + date.tm_mday, 1900 + date.tm_year + ); +} + +static void printScalar(struct tm scalar) { + if (scalar.tm_year) printf("%dy ", scalar.tm_year); + if (scalar.tm_mon) printf("%dm ", scalar.tm_mon); + if (scalar.tm_mday % 7) { + printf("%dd ", scalar.tm_mday); + } else if (scalar.tm_mday) { + printf("%dw ", scalar.tm_mday / 7); + } + if (scalar.tm_yday && scalar.tm_mon) printf("(%dd) ", scalar.tm_yday); + printf("\n"); +} + +%} + +%token Number Month Day +%left '+' '-' +%right '<' '>' + +%% + +expr: + date { printDate($1); } + | scalar { printScalar($1); } + ; + +date: + dateLit + | '(' date ')' { $$ = $2; } + | '<' date { $$ = dateSub($2, Week); } + | '>' date { $$ = dateAdd($2, Week); } + | date '+' scalar { $$ = dateAdd($1, $3); } + | date '-' scalar { $$ = dateSub($1, $3); } + ; + +scalar: + scalarLit + | '(' scalar ')' { $$ = $2; } + | scalar '+' scalar { $$ = scalarAdd($1, $3); } + | scalar '-' scalar { $$ = scalarSub($1, $3); } + | date '-' date { $$ = dateDiff($1, $3); } + ; + +dateLit: + { $$ = today(); } + | '.' { $$ = today(); } + | Month Number { $$ = monthDay($1.tm_mon, $2.tm_sec); } + | Month Number Number { $$ = monthDayYear($1.tm_mon, $2.tm_sec, $3.tm_sec); } + | Day { $$ = weekDay($1.tm_wday); } + ; + +scalarLit: + Number 'd' { $$ = (struct tm) { .tm_mday = $1.tm_sec }; } + | Number 'w' { $$ = (struct tm) { .tm_mday = 7 * $1.tm_sec }; } + | Number 'm' { $$ = (struct tm) { .tm_mon = $1.tm_sec }; } + | Number 'y' { $$ = (struct tm) { .tm_year = $1.tm_sec }; } + ; + +%% + +static void yyerror(const char *str) { + warnx("%s", str); +} + +static const char *input; + +static int yylex(void) { + while (isspace(*input)) input++; + if (!*input) return EOF; + + if (isdigit(*input)) { + char *rest; + yylval.tm_sec = strtol(input, &rest, 10); + input = rest; + return Number; + } + + for (int i = 0; i < 7; ++i) { + if (strncasecmp(input, Days[i], 3)) continue; + while (isalpha(*input)) input++; + yylval.tm_wday = i; + return Day; + } + + for (int i = 0; i < 12; ++i) { + if (strncasecmp(input, Months[i], 3)) continue; + while (isalpha(*input)) input++; + yylval.tm_mon = i; + return Month; + } + + return *input++; +} + +int main(int argc, char *argv[]) { + if (argc > 1) { + input = argv[1]; + return yyparse(); + } + + struct tm date = today(); + printDate(date); + printf("\n"); + + char *line = NULL; + size_t cap = 0; + while (0 < getline(&line, &cap, stdin)) { + if (line[0] == '\n') continue; + + if (today().tm_mday != date.tm_mday) { + warnx("the date has changed"); + date = today(); + } + + input = line; + yyparse(); + printf("\n"); + } +} diff --git a/bin/xx.c b/bin/xx.c new file mode 100644 index 00000000..6d04f2f5 --- /dev/null +++ b/bin/xx.c @@ -0,0 +1,142 @@ +/* Copyright (C) 2017 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <ctype.h> +#include <err.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <sysexits.h> +#include <unistd.h> + +typedef unsigned char byte; + +static bool zero(const byte *ptr, size_t size) { + for (size_t i = 0; i < size; ++i) { + if (ptr[i]) return false; + } + return true; +} + +static struct { + size_t cols; + size_t group; + size_t blank; + bool ascii; + bool offset; + bool skip; +} options = { 16, 8, 0, true, true, false }; + +static void dump(FILE *file) { + bool skip = false; + + byte buf[options.cols]; + size_t offset = 0; + for ( + size_t size; + (size = fread(buf, 1, sizeof(buf), file)); + offset += size + ) { + if (options.skip) { + if (zero(buf, size)) { + if (!skip) printf("*\n"); + skip = true; + continue; + } else { + skip = false; + } + } + + if (options.blank) { + if (offset && offset % options.blank == 0) { + printf("\n"); + } + } + + if (options.offset) { + printf("%08zX: ", offset); + } + + for (size_t i = 0; i < sizeof(buf); ++i) { + if (options.group) { + if (i && !(i % options.group)) { + printf(" "); + } + } + if (i < size) { + printf("%02hhX ", buf[i]); + } else { + printf(" "); + } + } + + if (options.ascii) { + printf(" "); + for (size_t i = 0; i < size; ++i) { + if (options.group) { + if (i && !(i % options.group)) { + printf(" "); + } + } + printf("%c", isprint(buf[i]) ? buf[i] : '.'); + } + } + + printf("\n"); + } +} + +static void undump(FILE *file) { + byte c; + int match; + while (0 < (match = fscanf(file, " %hhx", &c))) { + printf("%c", c); + } + if (!match) errx(EX_DATAERR, "invalid input"); +} + +int main(int argc, char *argv[]) { + bool reverse = false; + const char *path = NULL; + + int opt; + while (0 < (opt = getopt(argc, argv, "ac:g:p:rsz"))) { + switch (opt) { + break; case 'a': options.ascii ^= true; + break; case 'c': options.cols = strtoul(optarg, NULL, 0); + break; case 'g': options.group = strtoul(optarg, NULL, 0); + break; case 'p': options.blank = strtoul(optarg, NULL, 0); + break; case 'r': reverse = true; + break; case 's': options.offset ^= true; + break; case 'z': options.skip ^= true; + break; default: return EX_USAGE; + } + } + if (argc > optind) path = argv[optind]; + if (!options.cols) return EX_USAGE; + + FILE *file = path ? fopen(path, "r") : stdin; + if (!file) err(EX_NOINPUT, "%s", path); + + if (reverse) { + undump(file); + } else { + dump(file); + } + if (ferror(file)) err(EX_IOERR, "%s", path); + + return EX_OK; +} diff --git a/doc/pdf/.gitignore b/doc/pdf/.gitignore new file mode 100644 index 00000000..a1363379 --- /dev/null +++ b/doc/pdf/.gitignore @@ -0,0 +1 @@ +*.pdf diff --git a/doc/pdf/Makefile b/doc/pdf/Makefile new file mode 100644 index 00000000..7afbdcf2 --- /dev/null +++ b/doc/pdf/Makefile @@ -0,0 +1,31 @@ +PDFS += abi.pdf +PDFS += c11.pdf +PDFS += elf.pdf +PDFS += intel-64-opt.pdf +PDFS += intel-64-sdm-vol-1.pdf +PDFS += intel-64-sdm-vol-2.pdf +PDFS += intel-64-sdm-vol-3.pdf +PDFS += intel-64-sdm-vol-4.pdf +PDFS += multiboot.pdf + +ELF = https://refspecs.linuxbase.org/elf +INTEL = https://software.intel.com/sites/default/files/managed + +URL.abi.pdf = ${ELF}/x86_64-abi-0.99.pdf +URL.c11.pdf = http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1570.pdf +URL.elf.pdf = ${ELF}/elf.pdf +URL.intel-64-opt.pdf = ${INTEL}/9e/bc/64-ia-32-architectures-optimization-manual.pdf +URL.intel-64-sdm-vol-1.pdf = ${INTEL}/a4/60/253665-sdm-vol-1.pdf +URL.intel-64-sdm-vol-2.pdf = ${INTEL}/a4/60/325383-sdm-vol-2abcd.pdf +URL.intel-64-sdm-vol-3.pdf = ${INTEL}/a4/60/325384-sdm-vol-3abcd.pdf +URL.intel-64-sdm-vol-4.pdf = ${INTEL}/22/0d/335592-sdm-vol-4.pdf +URL.multiboot.pdf = https://www.gnu.org/software/grub/manual/multiboot/multiboot.pdf + +all: ${PDFS} + +${PDFS}: + curl -Lf -o $@ ${URL.$@} + chmod a-w $@ + +clean: + rm -f ${PDFS} diff --git a/doc/rfc/.gitignore b/doc/rfc/.gitignore new file mode 100644 index 00000000..cc3245d4 --- /dev/null +++ b/doc/rfc/.gitignore @@ -0,0 +1,2 @@ +rfc +rfctags diff --git a/doc/rfc/Makefile b/doc/rfc/Makefile new file mode 100644 index 00000000..31e238a0 --- /dev/null +++ b/doc/rfc/Makefile @@ -0,0 +1,38 @@ +PREFIX ?= ~/.local +MANDIR ?= ${PREFIX}/share/man + +MODULE = ftp.rfc-editor.org::rfcs-text-only +RFCS = ${MODULE}/rfc-index.txt ${MODULE}/'rfc[1-9]*.txt' + +all: rfc rfctags + +.SUFFIXES: .in .pl + +.in: + sed 's|%%PREFIX%%|${PREFIX}|g' $< > $@ + chmod a+x $@ + +.pl: + cp -f $< $@ + chmod a+x $@ + +clean: + rm -f rfc rfctags + +install: rfc rfctags rfc.1 + install -d ${PREFIX}/bin ${MANDIR}/man1 + install rfc rfctags ${PREFIX}/bin + install -m 644 rfc.1 ${MANDIR}/man1 + ln -fs rfc.1 ${MANDIR}/man1/rfctags.1 + +sync: + install -d ${PREFIX}/share + rsync -ptz ${RFCS} ${PREFIX}/share/rfc + +compress: + find ${PREFIX}/share/rfc -name '*.txt' | xargs gzip -9f + +uninstall: + rm -f ${PREFIX}/bin/rfc ${PREFIX}/bin/rfctags + rm -f ${MANDIR}/man1/rfc.1 ${MANDIR}/man1/rfctags.1 + rm -fr ${PREFIX}/share/rfc diff --git a/doc/rfc/rfc.1 b/doc/rfc/rfc.1 new file mode 100644 index 00000000..ece5a901 --- /dev/null +++ b/doc/rfc/rfc.1 @@ -0,0 +1,53 @@ +.Dd January 18, 2021 +.Dt RFC 1 +.Os +. +.Sh NAME +.Nm rfc , +.Nm rfctags +.Nd view IETF RFCs +. +.Sh SYNOPSIS +.Nm rfc +.Op Ar number +.Nm rfctags +.Op Ar +. +.Sh DESCRIPTION +The +.Nm rfc +utility displays +an IETF RFC by number, +or the RFC index if no number is specified. +The RFC is displayed in the +.Ev PAGER +with a tags file generated by +.Nm rfctags . +. +.Pp +The +.Nm rfctags +utility generates tags +for RFC text file +section numbers, +section names +and bracketed references. +. +.Sh ENVIRONMENT +.Bl -tag -width Ds +.It Ev PAGER +The program used to display RFCs. +It must accept the +.Fl T +flag for specifying +the path of the tags file. +The default is +.Ev PAGER=less . +.El +. +.Sh SEE ALSO +.Xr ctags 1 , +.Xr less 1 +. +.Sh AUTHORS +.An June Bug Aq Mt june@causal.agency diff --git a/doc/rfc/rfc.in b/doc/rfc/rfc.in new file mode 100644 index 00000000..16081c83 --- /dev/null +++ b/doc/rfc/rfc.in @@ -0,0 +1,19 @@ +#!/bin/sh +set -eu + +mktemp='mktemp -t rfc' +[ "$(uname)" = 'OpenBSD' ] && mktemp="${mktemp}.XXXXXXXXXX" + +rfc=%%PREFIX%%/share/rfc/"rfc${1:--index}.txt" +tags=$($mktemp) +trap 'rm "${tags}"' EXIT + +if test -f "${rfc}.gz"; then + txt=$($mktemp) + trap 'rm "${txt}" "${tags}"' EXIT + gunzip -c "${rfc}.gz" >"${txt}" + rfc=$txt +fi + +%%PREFIX%%/bin/rfctags "${rfc}" >"${tags}" +${PAGER:-less} -T "${tags}" "${rfc}" diff --git a/doc/rfc/rfctags.pl b/doc/rfc/rfctags.pl new file mode 100644 index 00000000..05173d00 --- /dev/null +++ b/doc/rfc/rfctags.pl @@ -0,0 +1,21 @@ +#!/usr/bin/env perl +use strict; +use warnings; +use open ':encoding(ISO-8859-1)'; + +($,, $\) = ("\t", "\n"); +while (<>) { + chomp; + # Section headings + if (/^([\d.]+|[A-Z][.])\s+([^\t]+)?/) { + print $1, $ARGV, $.; + print $2, $ARGV, $. if $2; + print $1, $ARGV, $. if $1 =~ /^([\d.]+)[.]$/; + } + # References + if (/^\s*(\[[\w-]+\])\s{2,}/) { + print $1, $ARGV, $.; + print "\\$1", $ARGV, $.; # vim ^] prepends \ to [ + } + close ARGV if eof; +} diff --git a/doc/zlib/Makefile b/doc/zlib/Makefile new file mode 100644 index 00000000..6cfd4a42 --- /dev/null +++ b/doc/zlib/Makefile @@ -0,0 +1,87 @@ +PREFIX ?= ~/.local +MANDIR ?= ${PREFIX}/share/man + +MAN += adler32.3 +MAN += adler32_combine.3 +MAN += compress.3 +MAN += compressBound.3 +MAN += crc32.3 +MAN += crc32_combine.3 +MAN += deflate.3 +MAN += deflateBound.3 +MAN += deflateCopy.3 +MAN += deflateEnd.3 +MAN += deflateGetDictionary.3 +MAN += deflateInit.3 +MAN += deflateInit2.3 +MAN += deflateParams.3 +MAN += deflatePending.3 +MAN += deflatePrime.3 +MAN += deflateReset.3 +MAN += deflateSetDictionary.3 +MAN += deflateSetHeader.3 +MAN += deflateTune.3 +MAN += gzbuffer.3 +MAN += gzclose.3 +MAN += gzdirect.3 +MAN += gzeof.3 +MAN += gzerror.3 +MAN += gzflush.3 +MAN += gzfread.3 +MAN += gzfwrite.3 +MAN += gzgetc.3 +MAN += gzgets.3 +MAN += gzoffset.3 +MAN += gzopen.3 +MAN += gzprintf.3 +MAN += gzputc.3 +MAN += gzputs.3 +MAN += gzread.3 +MAN += gzseek.3 +MAN += gzsetparams.3 +MAN += gzungetc.3 +MAN += gzwrite.3 +MAN += inflate.3 +MAN += inflateBack.3 +MAN += inflateBackEnd.3 +MAN += inflateBackInit.3 +MAN += inflateCopy.3 +MAN += inflateEnd.3 +MAN += inflateGetDictionary.3 +MAN += inflateGetHeader.3 +MAN += inflateInit.3 +MAN += inflateInit2.3 +MAN += inflateMark.3 +MAN += inflatePrime.3 +MAN += inflateReset.3 +MAN += inflateSetDictionary.3 +MAN += inflateSync.3 +MAN += uncompress.3 +MAN += zlibCompileFlags.3 +MAN += zlibVersion.3 + +MLINKS += adler32.3 adler32_z.3 +MLINKS += compress.3 compress2.3 +MLINKS += crc32.3 crc32_z.3 +MLINKS += gzclose.3 gzclose_r.3 +MLINKS += gzclose.3 gzclose_w.3 +MLINKS += gzerror.3 gzclearerr.3 +MLINKS += gzopen.3 gzdopen.3 +MLINKS += gzseek.3 gzrewind.3 +MLINKS += gzseek.3 gztell.3 +MLINKS += inflateReset.3 inflateReset2.3 +MLINKS += uncompress.3 uncompress2.3 + +lint: + mandoc -T lint ${MAN} | grep -v 'referenced manual not found' + +install: + install -d ${MANDIR}/man3 + install -m 644 ${MAN} ${MANDIR}/man3 + set -- ${MLINKS}; while [ -n "$$*" ]; do \ + ln -fs $$1 ${MANDIR}/man3/$$2; shift 2; done + +uninstall: + rm -f ${MAN:%=${MANDIR}/man3/%} + set -- ${MLINKS}; while [ -n "$$*" ]; do \ + rm -f ${MANDIR}/man3/$$2; shift 2; done diff --git a/doc/zlib/adler32.3 b/doc/zlib/adler32.3 new file mode 100644 index 00000000..d713d952 --- /dev/null +++ b/doc/zlib/adler32.3 @@ -0,0 +1,65 @@ +.Dd January 15, 2017 +.Dt ADLER32 3 +.Os +. +.Sh NAME +.Nm adler32 , +.Nm adler32_z +.Nd update Adler-32 checksum +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft uLong +.Fn adler32 "uLong adler" "const Bytef *buf" "uInt len" +.Ft uLong +.Fn adler32_z "uLong adler" "const Bytef *buf" "z_size_t len" +. +.Sh DESCRIPTION +Update a running Adler-32 checksum with the bytes +.Fa "buf[0..len-1]" +and return the updated checksum. +If +.Fa buf +is +.Dv Z_NULL , +this function returns +the required initial value for the checksum. +. +.Pp +An Adler-32 checksum is almost as reliable as a CRC-32 +but can be computed much faster. +. +.Pp +.Fn adler32_z +is the same as +.Fn adler32 , +but with a +.Vt size_t +length. +. +.Sh EXAMPLES +.Bd -literal -offset indent +uLong adler = adler32(0L, Z_NULL, 0); + +while (read_buffer(buffer, length) != EOF) { + adler = adler32(adler, buffer, length); +} +if (adler != original_adler) error(); +.Ed +. +.Sh SEE ALSO +.Xr adler32_combine 3 , +.Xr crc32 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/adler32_combine.3 b/doc/zlib/adler32_combine.3 new file mode 100644 index 00000000..861f235b --- /dev/null +++ b/doc/zlib/adler32_combine.3 @@ -0,0 +1,63 @@ +.Dd January 15, 2017 +.Dt ADLER32_COMBINE 3 +.Os +. +.Sh NAME +.Nm adler32_combine +.Nd combine Adler-32 checksums +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft uLong +.Fn adler32_combine "uLong adler1" "uLong adler2" "z_off_t len2" +. +.Sh DESCRIPTION +Combine two Adler-32 checksums into one. +For two sequences of bytes, +.Va seq1 +and +.Va seq2 +with lengths +.Va len1 +and +.Va len2 , +Adler-32 checksums were calculated for each, +.Va adler1 +and +.Va adler2 . +.Fn adler32_combine +returns the Adler-32 checksum of +.Va seq1 +and +.Va seq2 +concatenated, +requiring only +.Fa adler1 , +.Fa adler2 , +and +.Fa len2 . +Note that the +.Vt z_off_t +type +.Pq like Vt off_t +is a signed integer. +If +.Fa len2 +is negative, +the result has no meaning or utility. +. +.Sh SEE ALSO +.Xr adler32 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/compress.3 b/doc/zlib/compress.3 new file mode 100644 index 00000000..22b229ee --- /dev/null +++ b/doc/zlib/compress.3 @@ -0,0 +1,84 @@ +.Dd January 15, 2017 +.Dt COMPRESS 3 +.Os +. +.Sh NAME +.Nm compress , +.Nm compress2 +.Nd compress source buffer into destination buffer +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +. +.Ft int +.Fo compress +.Fa "Bytef *dest" +.Fa "uLongf *destLen" +.Fa "const Bytef *source" +.Fa "uLong sourceLen" +.Fc +. +.Ft int +.Fo compress2 +.Fa "Bytef *dest" +.Fa "uLongf *destLen" +.Fa "const Bytef *source" +.Fa "uLong sourceLen" +.Fa "int level" +.Fc +. +.Sh DESCRIPTION +Compresses the source buffer into the destination buffer. +.Fa sourceLen +is the byte length of the source buffer. +Upon entry, +.Fa destLen +is the total size of the destination buffer, +which must be at least the value returned by +.Fn compressBound sourceLen . +Upon exit, +.Fa destLen +is the actual size of the compressed data. +. +.Pp +.Fn compress +is equivalent to +.Fn compress2 +with a +.Fa level +parameter of +.Dv Z_DEFAULT_COMPRESSION . +. +.Sh RETURN VALUES +.Fn compress +and +.Fn compress2 +return +.Dv Z_OK +on success, +.Dv Z_MEM_ERROR +if there was not enough memory, +.Dv Z_BUF_ERROR +if there was not enough room in the output buffer, +.Dv Z_STREAM_ERROR +if the +.Fa level +parameter is invalid. +. +.Sh SEE ALSO +.Xr compressBound 3 , +.Xr deflateInit 3 , +.Xr uncompress 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/compressBound.3 b/doc/zlib/compressBound.3 new file mode 100644 index 00000000..5800e2ba --- /dev/null +++ b/doc/zlib/compressBound.3 @@ -0,0 +1,44 @@ +.Dd January 15, 2017 +.Dt COMPRESSBOUND 3 +.Os +. +.Sh NAME +.Nm compressBound +.Nd compressed size upper bound +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft uLong +.Fn compressBound "uLong sourceLen" +. +.Sh DESCRIPTION +.Fn compressBound +returns an upper bound on the compressed size after +.Xr compress 3 +or +.Xr compress2 3 +on +.Fa sourceLen +bytes. +It would be used before a +.Xr compress 3 +or +.Xr compress2 3 +call to allocate the destination buffer. +. +.Sh SEE ALSO +.Xr compress 3 , +.Xr deflateBound 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/crc32.3 b/doc/zlib/crc32.3 new file mode 100644 index 00000000..3c9cc8c4 --- /dev/null +++ b/doc/zlib/crc32.3 @@ -0,0 +1,66 @@ +.Dd January 15, 2017 +.Dt CRC32 3 +.Os +. +.Sh NAME +.Nm crc32 , +.Nm crc32_z +.Nd update CRC-32 checksum +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft uLong +.Fn crc32 "uLong crc" "const Bytef *buf" "uInt len" +.Ft uLong +.Fn crc32_z "uLong crc" "const Bytef *buf" "z_size_t len" +. +.Sh DESCRIPTION +Update a running CRC-32 with the bytes +.Fa "buf[0..len-1]" +and return the updated CRC-32. +If +.Fa buf +is +.Dv Z_NULL , +this function returns +the required initial value for the CRC. +Pre- and post-conditioning +(one's complement) +is performed within this function +so it shouldn't be done +by the application. +. +.Pp +.Fn crc32_z +is the same as +.Fn crc32 , +but with a +.Vt size_t +length. +. +.Sh EXAMPLES +.Bd -literal -offset indent +uLong crc = crc32(0L, Z_NULL, 0); + +while (read_buffer(buffer, length) != EOF) { + crc = crc32(crc, buffer, length); +} +if (crc != original_crc) error(); +.Ed +. +.Sh SEE ALSO +.Xr adler32 3 , +.Xr crc32_combine 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/crc32_combine.3 b/doc/zlib/crc32_combine.3 new file mode 100644 index 00000000..2f79f623 --- /dev/null +++ b/doc/zlib/crc32_combine.3 @@ -0,0 +1,54 @@ +.Dd January 15, 2017 +.Dt CRC32_COMBINE 3 +.Os +. +.Sh NAME +.Nm crc32_combine +.Nd combine CRC-32 checksums +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft uLong +.Fn crc32_combine "uLong crc1" "uLong crc2" "z_off_t len2" +. +.Sh DESCRIPTION +Combine two CRC-32 check values into one. +For two sequences of bytes, +.Va seq1 +and +.Va seq2 +with lengths +.Va len1 +and +.Va len2 , +CRC-32 check values were calculated for each, +.Va crc1 +and +.Va crc2 . +.Fn crc32_combine +returns the CRC-32 check value of +.Va seq1 +and +.Va seq2 +concatenated, +requiring only +.Fa crc1 , +.Fa crc2 , +and +.Fa len2 . +. +.Sh SEE ALSO +.Xr crc32 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/deflate.3 b/doc/zlib/deflate.3 new file mode 100644 index 00000000..7df313ee --- /dev/null +++ b/doc/zlib/deflate.3 @@ -0,0 +1,370 @@ +.Dd January 15, 2017 +.Dt DEFLATE 3 +.Os +. +.Sh NAME +.Nm deflate +.Nd deflate compression +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn deflate "z_streamp strm" "int flush" +. +.Sh DESCRIPTION +.Fn deflate +compresses as much data as possible, +and stops when the input buffer becomes empty +or the output buffer becomes full. +It may introduce some output latency +(reading input without producing any output) +except when forced the flush. +. +.Pp +The detailed semantics are as follows. +.Fn deflate +performs one or both of the following actions: +. +.Bl -dash +.It +Compress more input starting at +.Fa next_in +and update +.Fa next_in +and +.Fa avail_in +accordingly. +If not all input can be processed +(because there is not enough room in the output buffer), +.Fa next_in +and +.Fa avail_in +are updated +and processing will resume at this point +for the next call of +.Fn deflate . +. +.It +Generate more output starting at +.Fa next_out +and update +.Fa next_out +and +.Fa avail_out +accordingly. +This action is forced if the parameter +.Fa flush +is non-zero. +Forcing flush frequently degrades the compression ratio, +so this parameter should be set only when necessary. +Some output may be provided even if +.Fa flush +is zero. +.El +. +.Pp +Before the call of +.Fn deflate , +the application should ensure that +at least one of the actions is possible, +by providing more input +and/or consuming more output, +and updating +.Fa avail_in +or +.Fa avail_out +accordingly; +.Fa avail_out +should never be zero before the call. +The application can consume the compressed output +when it wants, +for example when the output buffer is full +.Po +.Fa avail_out +== 0 +.Pc , +or after each call of +.Fn deflate . +If +.Fn deflate +returns +.Dv Z_OK +and with zero +.Fa avail_out , +it must be called again after making room in the output buffer +because there might be more output pending. +See +.Xr deflatePending 3 , +which can be used if desired to determine +whether or not there is more output in that case. +. +.Pp +Normally the parameter +.Fa flush +is set to +.Dv Z_NO_FLUSH , +which allows +.Fn deflate +to decide how much data to accumulate before producing output, +in order to maximize compression. +. +.Pp +If the parameter +.Fa flush +is set to +.Dv Z_SYNC_FLUSH , +all pending output is flushed to the output buffer +and the output is aligned on a byte boundary, +so that the decompressor can get all input data available so far. +.Po +In particular +.Fa avail_in +is zero after the call if enough output space +has been provided before the call. +.Pc \& +Flushing may degrade compression for some compression algorithms +and so it should be used only when necessary. +This completes the current deflate block +and follows it with an empty stored block +that is three bits plus filler bits to the next byte, +followed by four bytes +(00 00 ff ff). +. +.Pp +If +.Fa flush +is set to +.Dv Z_PARTIAL_FLUSH , +all pending output is flushed to the output buffer, +but the output is not aligned to a byte boundary. +All of the input data so far will be available to the decompressor, +as for +.Dv Z_SYNC_FLUSH . +This completes the current deflate block +and follows it with an empty fixed codes block +that is 10 bits long. +This assures that enough bytes are output +in order for the decompressor to finish the block +before the empty fixed codes block. +. +.Pp +If +.Fa flush +is set to +.Dv Z_BLOCK , +a deflate block is completed and emitted, +as for +.Dv Z_SYNC_FLUSH , +but the output is not aligned on a byte boundary, +and up to seven bits of the current block +are held to be written as the next byte +after the next deflate block is completed. +In this case, +the decompressor may not be provided enough bits +at this point in order to complete decompression +of the data provided so far to the compressor. +It may need to wait for the next block to be emitted. +This is for advanced applications +that need to control the emission of deflate blocks. +. +.Pp +If +.Fa flush +is set to +.Dv Z_FULL_FLUSH , +all output is flushed as with +.Dv Z_SYNC_FLUSH , +and the compression state is reset +so that decompression can restart from this point +if previous compressed data has been damaged +or if random access is desired. +Using +.Dv Z_FULL_FLUSH +too often can seriously degrade compression. +. +.Pp +If +.Fn deflate +returns with +.Fa avail_out +== 0, +this function must be called again +with the same value of the +.Fa flush +parameter +and more output space +.Po +updated +.Fa avail_out +.Pc , +until the flush is complete +.Po +.Fn deflate +returns with non-zero +.Fa avail_out +.Pc . +In the case of a +.Dv Z_FULL_FLUSH +or +.Dv Z_SYNC_FLUSH , +make sure that +.Fa avail_out +is greater than six +to avoid repeated flush markers +due to +.Fa avail_out +== 0 +on return. +. +.Pp +If the parameter +.Fa flush +is set to +.Dv Z_FINISH , +pending input is processed, +pending output is flushed and +.Fn deflate +returns with +.Dv Z_STREAM_END +if there was enough output space. +If +.Fn deflate +returns with +.Dv Z_OK +or +.Dv Z_BUF_ERROR , +this function must be called again with +.Dv Z_FINISH +and more output space +.Pq updated Fa avail_out +but no more input data, +until it returns with +.Dv Z_STREAM_END +or an error. +After +.Fn deflate +has returned +.Dv Z_STREAM_END , +the only possible operations on the stream are +.Xr deflateReset 3 +or +.Xr deflateEnd 3 . +. +.Pp +.Dv Z_FINISH +can be used in the first +.Fn deflate +call after +.Xr deflateInit 3 +if all the compression is to be done in a single step. +In order to complete in one call, +.Fa avail_out +must be at least the value returned by +.Xr deflateBound 3 . +Then +.Fn deflate +is guaranteed to return +.Dv Z_STREAM_END . +If not enough output space is provided, +.Fn deflate +will not return +.Dv Z_STREAM_END , +and it must be called again as described above. +. +.Pp +.Fn deflate +sets +.Fa strm->adler +to the Adler-32 checksum +of all input read so far +.Po +that is, +.Fa total_in +bytes +.Pc . +If a gzip stream is being generated, +then +.Fa strm->adler +will be the CRC-32 checksum of the input read so far. +See +.Xr deflateInit2 3 . +. +.Pp +.Fn deflate +may update +.Fa strm->data_type +if it can make a good guess +about the input data type +.Po +.Dv Z_BINARY +or +.Dv Z_TEXT +.Pc . +If in doubt, +the date is considered binary. +This field is only for information purposes +and does not affect the compression algorithm in any manner. +. +.Sh RETURN VALUES +.Fn deflate +returns +.Dv Z_OK +if some progress has been made +(more input processed or more output produced), +.Dv Z_STREAM_END +if all input has been consumed +and all output has been produced +.Po +only when +.Fa flush +is set to +.Dv Z_FINISH +.Pc , +.Dv Z_STREAM_ERROR +if the stream state was inconsistent +.Po +for example if +.Fa next_in +or +.Fa next_out +was +.Dv Z_NULL +or the state was inadvertently written over +by the application +.Pc , +or +.Dv Z_BUF_ERROR +if no progress is possible +.Po +for example +.Fa avail_in +or +.Fa avail_out +was zero +.Pc . +Note that +.Dv Z_BUF_ERROR +is not fatal, +and +.Fn deflate +can be called again with more input and more output space +to continue compressing. +. +.Sh SEE ALSO +.Xr deflateEnd 3 , +.Xr deflateInit 3 , +.Xr deflatePending 3 , +.Xr inflate 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/deflateBound.3 b/doc/zlib/deflateBound.3 new file mode 100644 index 00000000..63e80246 --- /dev/null +++ b/doc/zlib/deflateBound.3 @@ -0,0 +1,71 @@ +.Dd January 15, 2017 +.Dt DEFLATEBOUND 3 +.Os +. +.Sh NAME +.Nm deflateBound +.Nd compressed size upper bound +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft uLong +.Fn deflateBound "z_streamp strm" "uLong sourceLen" +. +.Sh DESCRIPTION +.Fn deflateBound +returns an upper bound +on the compressed size +after deflation of +.Fa sourceLen +bytes. +It must be called after +.Xr deflateInit 3 +or +.Xr deflateInit2 3 , +and after +.Xr deflateSetHeader 3 , +if used. +This would be used +to allocate an output buffer +for deflation in a single pass, +and so would be called before +.Xr deflate 3 . +If that first +.Fn deflate +call is provided the +.Fa sourceLen +input bytes, +an output buffer allocated +to the size returned by +.Fn deflateBound , +and the flush value +.Dv Z_FINISH , +then +.Fn deflate +is guaranteed to return +.Dv Z_STREAM_END . +Note that it is possible +for the compressed size +to be larger than the value returned by +.Fn deflateBound +if flush options other than +.Dv Z_FINISH +or +.Dv Z_NO_FLUSH +are used. +. +.Sh SEE ALSO +.Xr compressBound 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/deflateCopy.3 b/doc/zlib/deflateCopy.3 new file mode 100644 index 00000000..f30d6301 --- /dev/null +++ b/doc/zlib/deflateCopy.3 @@ -0,0 +1,66 @@ +.Dd January 15, 2017 +.Dt DEFLATECOPY 3 +.Os +. +.Sh NAME +.Nm deflateCopy +.Nd copy deflate stream +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn deflateCopy "z_streamp dest" "z_streamp source" +. +.Sh DESCRIPTION +Sets the destination stream +as a complete copy of the source stream. +. +.Pp +This function can be useful when +several compression strategies will be tried, +for example when there are several ways of +pre-processing the input data with a filter. +The streams that will be discarded +should then be freed by calling +.Xr deflateEnd 3 . +Note that +.Fn deflateCopy +duplicates the internal compression state +which can be quite large, +so this strategy is slow +and can consume lots of memory. +. +.Sh RETURN VALUES +.Fn deflateCopy +returns +.Dv Z_OK +if success, +.Dv Z_MEM_ERROR +if there was not enough memory, +.Dv Z_STREAM_ERROR +if the source stream state was inconsistent +.Po +such as +.Fa zalloc +being +.Dv Z_NULL +.Pc . +.Fa msg +is left unchanged +in both source and destination. +. +.Sh SEE ALSO +.Xr deflateInit 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/deflateEnd.3 b/doc/zlib/deflateEnd.3 new file mode 100644 index 00000000..e24259a3 --- /dev/null +++ b/doc/zlib/deflateEnd.3 @@ -0,0 +1,50 @@ +.Dd January 15, 2017 +.Dt DEFLATEEND 3 +.Os +. +.Sh NAME +.Nm deflateEnd +.Nd free deflate stream +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn deflateEnd "z_streamp strm" +. +.Sh DESCRIPTION +All dynamically allocated data structures +for this stream are freed. +This function discards any unprocessed input +and does not flush any pending output. +. +.Sh RETURN VALUES +.Fn deflateEnd +returns +.Dv Z_OK +if success, +.Dv Z_STREAM_ERROR +if the stream state was inconsistent, +.Dv Z_DATA_ERROR +if the stream was freed prematurely +(some input or output was discarded). +In the error case, +.Fa msg +may be set but then points to a static string +(which must not be deallocated). +. +.Sh SEE ALSO +.Xr deflate 3 , +.Xr deflateInit 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/deflateGetDictionary.3 b/doc/zlib/deflateGetDictionary.3 new file mode 100644 index 00000000..403f6d10 --- /dev/null +++ b/doc/zlib/deflateGetDictionary.3 @@ -0,0 +1,79 @@ +.Dd January 15, 2017 +.Dt DEFLATEGETDICTIONARY 3 +.Os +. +.Sh NAME +.Nm deflateGetDictionary +.Nd deflate sliding dictionary +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fo deflateGetDictionary +.Fa "z_streamp strm" +.Fa "Bytef *dictionary" +.Fa "uInt *dictLength" +.Fc +. +.Sh DESCRIPTION +Returns the sliding dictionary +being maintained by deflate. +.Fa dictLength +is set to the number of bytes in the dictionary, +and that many bytes are copied to +.Fa dictionary . +.Fa dictionary +must have enough space, +where 32768 bytes is always enough. +If +.Fn deflateGetDictionary +is called with +.Fa dictionary +equal to +.Dv Z_NULL , +then only the dictionary length is returned, +and nothing is copied. +Similarly, +if +.Fa dictLength +is +.Dv Z_NULL , +then it is not set. +. +.Pp +.Fn deflateGetDictionary +may return a length less than the window size, +even when more than the window size in input +has been provided. +It may return up to 258 bytes less in that case, +due to how zlib's implementation of deflate +manages the sliding window and lookahead for matches, +where matches can be up to 258 bytes long. +If the application needs the last window-size bytes of input, +then that would need to be saved by the application +outside of zlib. +. +.Sh RETURN VALUES +.Fn deflateGetDictionary +returns +.Dv Z_OK +on success, +or +.Dv Z_STREAM_ERROR +if the stream state is inconsistent. +. +.Sh SEE ALSO +.Xr deflateSetDictionary 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/deflateInit.3 b/doc/zlib/deflateInit.3 new file mode 100644 index 00000000..a893dd91 --- /dev/null +++ b/doc/zlib/deflateInit.3 @@ -0,0 +1,178 @@ +.Dd January 15, 2017 +.Dt DEFLATEINIT 3 +.Os +. +.Sh NAME +.Nm deflateInit +.Nd initialize deflate stream +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +. +.Ft typedef voidpf +.Fo (*alloc_func) +.Fa "voidpf opaque" +.Fa "uInt items" +.Fa "uInt size" +.Fc +. +.Ft typedef void +.Fo (*free_func) +.Fa "voidpf opaque" +.Fa "voidpf address" +.Fc +. +.Bd -literal +typedef struct z_stream_s { + z_const Bytef *next_in; + uInt avail_in; + uLong total_in; + + Bytef *next_out; + uInt avail_out; + uLong total_out; + + z_const char *msg; + struct internal_state FAR *state; + + alloc_func zalloc; + free_func zfree; + voidpf opaque; + + int data_type; + uLong adler; + uLong reserved; +} z_stream; +.Ed +. +.Pp +.Vt typedef z_stream FAR *z_streamp; +. +.Ft int +.Fn deflateInit "z_streamp strm" "int level" +. +.Sh DESCRIPTION +Initializes the internal stream state for compression. +The fields +.Fa zalloc , +.Fa zfree +and +.Fa opaque +must be initialized before by the caller. +If +.Fa zalloc +and +.Fa zfree +are set to +.Dv Z_NULL , +.Fn deflateInit +updates them to use default allocation functions. +.Fn deflateInit +does not perform any compression: +this will be done by +.Xr deflate 3 . +. +.Pp +The compression +.Fa level +must be +.Dv Z_DEFAULT_COMPRESSION , +or between 0 and 9: +1 gives best speed, +9 gives best compression, +0 gives no compression at all +(the input data is simply copied a block at a time). +.Dv Z_DEFAULT_COMPRESSION +requests a default compromise between speed and compression +(currently equivalent to level 6). +. +.Pp +The fields of +.Vt z_stream +are as follows: +. +.Bl -tag -width "data_type" +.It Fa next_in +next input byte +.It Fa avail_in +number of bytes available at +.Fa next_in +.It Fa total_in +total number of input bytes read so far +.It Fa next_out +next output byte will go here +.It Fa avail_out +remaining free space at +.Fa next_out +.It Fa total_out +total number of bytes output so far +.It Fa msg +last error message, +.Dv NULL +if no error +.It Fa state +not visible by applications +.It Fa zalloc +used to allocate the internal state +.It Fa zfree +used to free the internal state +.It Fa opaque +private data object passed to +.Fa zalloc +and +.Fa zfree +.It data_type +best guess about the data type: +binary or text for +.Xr deflate 3 , +or the decoding state for +.Xr inflate 3 +.It adler +Adler-32 or CRC-32 value of the uncompressed data +.It reserved +reserved for future use +.El +. +.Sh RETURN VALUES +.Fn deflateInit +returns +.Dv Z_OK +if success, +.Dv Z_MEM_ERROR +if there was not enough memory, +.Dv Z_STREAM_ERROR +if +.Fa level +is not a valid compression level, +or +.Dv Z_VERSION_ERROR +if the zlib library version +.Pq Xr zlibVersion 3 +is incompatible with the version assumed by the caller +.Pq Dv ZLIB_VERSION . +.Fa msg +is set to null +if there is no error message. +. +.Sh SEE ALSO +.Xr deflate 3 , +.Xr deflateCopy 3 , +.Xr deflateEnd 3 , +.Xr deflateInit2 3 , +.Xr deflatePrime 3 , +.Xr deflateReset 3 , +.Xr deflateSetDictionary 3 , +.Xr deflateTune 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/deflateInit2.3 b/doc/zlib/deflateInit2.3 new file mode 100644 index 00000000..6a581ef8 --- /dev/null +++ b/doc/zlib/deflateInit2.3 @@ -0,0 +1,227 @@ +.Dd January 15, 2017 +.Dt DEFLATEINIT2 3 +.Os +. +.Sh NAME +.Nm deflateInit2 +.Nd deflate compression options +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fo deflateInit2 +.Fa "z_streamp strm" +.Fa "int level" +.Fa "int method" +.Fa "int windowBits" +.Fa "int memLevel" +.Fa "int strategy" +.Fc +. +.Sh DESCRIPTION +This is another version of +.Xr deflateInit 3 +with more compression options. +The fields +.Fa next_in , +.Fa zalloc , +.Fa zfree +and +.Fa opaque +must be initialized before by the caller. +. +.Pp +The +.Fa method +parameter is the compression method. +It must be +.Dv Z_DEFLATED +in this version of the library. +. +.Pp +The +.Fa windowBits +parameter is the base two logarithm +of the window size +(the size of the history buffer). +It should be in the range 8..15 +for this version of the library. +Larger values of this parameter +result in better compression +at the expense of memory usage. +The default value is 15 if +.Xr deflateInit 3 +is used instead. +. +.Pp +For the current implementation of +.Xr deflate 3 , +a +.Fa windowBits +value of 8 +(a window size of 256 bytes) +is not supported. +As a result, +a request for 8 +will result in 9 +(a 512-byte window). +In that case, +providing 8 to +.Xr inflateInit2 3 +will result in an error +when the zlib header with 9 +is checked against the initialization of +.Xr inflate 3 . +The remedy is to not use 8 with +.Fn deflateInit2 +with this initialization, +or at least in that case use 9 with +.Xr inflateInit2 3 . +. +.Pp +.Fa windowBits +can also be -8..-15 for raw deflate. +In this case, +.Fa -windowBits +determines the window size. +.Xr deflate 3 +will then generate raw deflate data +with no zlib header or trailer, +and will not compute a check value. +. +.Pp +.Fa windowBits +can also be greater than 15 +for optional gzip encoding. +Add 16 to +.Fa windowBits +to write a simple gzip header and trailer +around the compressed data +instead of a zlib wrapper. +The gzip header will have +no file name, +no extra data, +no comment, +no modification time (set to zero), +no header CRC, +and the operating system will be set +to the appropriate value, +if the operating system was determined at compile time. +If a gzip stream is being written, +.Fa strm->adler +is a CRC-32 instead of an Adler-32. +. +.Pp +For raw deflate or gzip encoding, +a request for a 256-byte window +is rejected as invalid, +since only the zlib header provides +a means of transmitting the window size +to the decompressor. +. +.Pp +The +.Fa memLevel +parameter specifies how much memory should be allocated +for the internal compression state. +.Fa memLevel=1 +uses minimum memory +but is slow and reduces compression ratio; +.Fa memLevel=9 +uses maximum memory for optimal speed. +The default value is 8. +See +.In zconf.h +for total memory usage +as a function of +.Fa windowBits +and +.Fa memLevel . +. +.Pp +The +.Fa strategy +parameter is used to tune the compression algorithm. +Use the value +.Dv Z_DEFAULT_STRATEGY +for normal data, +.Dv Z_FILTERED +for data produced by a filter +(or predictor), +.Dv Z_HUFFMAN_ONLY +to force Huffman encoding only +(no string match), +or +.Dv Z_RLE +to limit match distances to one +(run-length encoding). +Filtered data consists mostly of small values +with a somewhat random distribution. +In this case, +the compression algorithm +is tuned to compress them better. +The effect of +.Dv Z_FILTERED +is to force more Huffman coding +and less string matching; +it is somewhat intermediate between +.Dv Z_DEFAULT_STRATEGY +and +.Dv Z_HUFFMAN_ONLY . +.Dv Z_RLE +is designed to be almost as fast as +.Dv Z_HUFFMAN_ONLY , +but give better compression for PNG image data. +The +.Fa strategy +parameter only affects the compression ratio +but not the correctness of the compressed output +even if it is not set appropriately. +.Dv Z_FIXED +prevents the use of dynamic Huffman codes, +allowing for a simpler decoder +for special applications. +. +.Pp +.Fn deflateInit2 +does not perform any compression: +this will be done by +.Xr deflate 3 . +. +.Sh RETURN VALUES +.Fn deflateInit2 +returns +.Dv Z_OK +if success, +.Dv Z_MEM_ERROR +if there was not enough memory, +.Dv Z_STREAM_ERROR +if any parameter is invalid +(such as invalid method), +or +.Dv Z_VERSION_ERROR +if the zlib library version +.Pq Xr zlibVersion 3 +is incompatible with the version assumed by the caller +.Pq Dv ZLIB_VERSION . +.Fa msg +is set to null if there is no error message. +. +.Sh SEE ALSO +.Xr deflate 3 , +.Xr deflateInit 3 , +.Xr deflateParams 3 , +.Xr deflateSetHeader 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/deflateParams.3 b/doc/zlib/deflateParams.3 new file mode 100644 index 00000000..8e770d4e --- /dev/null +++ b/doc/zlib/deflateParams.3 @@ -0,0 +1,123 @@ +.Dd January 15, 2017 +.Dt DEFLATEPARAMS 3 +.Os +. +.Sh NAME +.Nm deflateParams +.Nd update compression level and strategy +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn deflateParams "z_streamp strm" "int level" "int strategy" +. +.Sh DESCRIPTION +Dynamically update the compression level +and compression strategy. +The interpretation of +.Fa level +and +.Fa strategy +is as in +.Xr deflateInit2 3 . +This can be used to switch between compression +and straight copy of the input data, +or to switch to a different kind of input data +requiring a different strategy. +If the compression approach +(which is a function of the level) +or the strategy is changed, +and if any input has been consumed +in a previous +.Xr deflate 3 +call, +then the input available so far is compressed +with the old level and strategy using +.Fn deflate strm Z_BLOCK . +There are three approaches +for the compression levels +0, 1..3, and 4..9 respectively. +The new level and strategy +will take effect at the next call of +.Xr deflate 3 . +. +.Pp +If a +.Fn deflate strm Z_BLOCK +is performed by +.Fn deflateParams , +and it does not have enough output space to complete, +then the parameter change will not take effect. +In this case, +.Fn deflateParams +can be called again +with the same parameters +and more output space +to try again. +. +.Pp +In order to assure a change in the parameters +on the first try, +the deflate stream should be flushed using +.Xr deflate 3 +with +.Dv Z_BLOCK +or other flush request until +.Fa strm.avail_out +is not zero, +before calling +.Fn deflateParams . +Then no more input data +should be provided before the +.Fn deflateParams +call. +If this is done, +the old level and strategy +will be applied +to the data compressed before +.Fn deflateParams , +and the new level and strategy +will be applied +to the data compressed after +.Fn deflateParams . +. +.Sh RETURN VALUES +.Fn deflateParams +returns +.Dv Z_OK +on success, +.Dv Z_STREAM_ERROR +if the source stream state was inconsistent +or if a parameter was invalid, +or +.Dv Z_BUF_ERROR +if there was not enough output space +to complete the compression +of the available input data +before a change in the strategy or approach. +Note that in the case of a +.Dv Z_BUF_ERROR , +the parameters are not changed. +A return value of +.Dv Z_BUF_ERROR +is not fatal, +in which case +.Fn deflateParams +can be retried +with more output space. +. +.Sh SEE ALSO +.Xr deflateInit2 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/deflatePending.3 b/doc/zlib/deflatePending.3 new file mode 100644 index 00000000..1ce40fc2 --- /dev/null +++ b/doc/zlib/deflatePending.3 @@ -0,0 +1,56 @@ +.Dd January 15, 2017 +.Dt DEFLATEPENDING 3 +.Os +. +.Sh NAME +.Nm deflatePending +.Nd pending deflate output +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn deflatePending "z_streamp strm" "unsigned *pending" "int *bits" +. +.Sh DESCRIPTION +.Fn deflatePending +returns the number of bytes and bits +of output that have been generated, +but not yet provided in the available output. +The bytes not provided would be due to +the available output space having been consumed. +The number of bits of output not provided +are between 0 and 7, +where they await more bits to join them +in order to fill out a full byte. +If +.Fa pending +or +.Fa bits +are +.Dv Z_NULL , +then those values are not set. +. +.Sh RETURN VALUES +.Fn deflatePending +returns +.Dv Z_OK +if success, +or +.Dv Z_STREAM_ERROR +if the source stream state was inconsistent. +. +.Sh SEE ALSO +.Xr deflate 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/deflatePrime.3 b/doc/zlib/deflatePrime.3 new file mode 100644 index 00000000..639e715a --- /dev/null +++ b/doc/zlib/deflatePrime.3 @@ -0,0 +1,64 @@ +.Dd January 15, 2017 +.Dt DEFLATEPRIME 3 +.Os +. +.Sh NAME +.Nm deflatePrime +.Nd insert bits in deflate stream +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn deflatePrime "z_streamp strm" "int bits" "int value" +. +.Sh DESCRIPTION +.Fn deflatePrime +inserts bits in the deflate output stream. +The intent is that this function +is used to start off the deflate output +with the bits leftover +from a previous deflate stream +when appending to it. +As such, +this function can only be used for raw deflate, +and must be used before the first +.Xr deflate 3 +call +after a +.Xr deflateInit2 3 +or +.Xr deflateReset 3 . +.Fa bits +must be less than or equal to 16, +and that many of the least significant bits of +.Fa value +will be inserted in the output. +. +.Sh RETURN VALUES +.Fn deflatePrime +returns +.Dv Z_OK +if success, +.Dv Z_BUF_ERROR +if there was not enough room +in the internal buffer +to insert the bits, +or +.Dv Z_STREAM_ERROR +if the source stream state was inconsistent. +. +.Sh SEE ALSO +.Xr deflateInit2 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/deflateReset.3 b/doc/zlib/deflateReset.3 new file mode 100644 index 00000000..7309ac15 --- /dev/null +++ b/doc/zlib/deflateReset.3 @@ -0,0 +1,57 @@ +.Dd January 15, 2017 +.Dt DEFLATERESET 3 +.Os +. +.Sh NAME +.Nm deflateReset +.Nd reset deflate stream +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn deflateReset "z_streamp strm" +. +.Sh DESCRIPTION +This function is equivalent to +.Xr deflateEnd 3 +followed by +.Xr deflateInit 3 , +but does not free and reallocate +the internal compression state. +The stream will leave the compression level +and any other attributes +that may have been set unchanged. +. +.Sh RETURN VALUES +.Fn deflateReset +returns +.Dv Z_OK +if success, +or +.Dv Z_STREAM_ERROR +if the source stream state was inconsistent +.Po +such as +.Fa zalloc +or +.Fa state +being +.Dv Z_NULL +.Pc . +. +.Sh SEE ALSO +.Xr deflateEnd 3 , +.Xr deflateInit 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/deflateSetDictionary.3 b/doc/zlib/deflateSetDictionary.3 new file mode 100644 index 00000000..c2c9d7c2 --- /dev/null +++ b/doc/zlib/deflateSetDictionary.3 @@ -0,0 +1,142 @@ +.Dd January 15, 2017 +.Dt DEFLATESETDICTIONARY 3 +.Os +. +.Sh NAME +.Nm deflateSetDictionary +.Nd initialize compression dictionary +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fo deflateSetDictionary +.Fa "z_streamp strm" +.Fa "const Bytef *dictionary" +.Fa "uInt dictLength" +.Fc +. +.Sh DESCRIPTION +.Fn deflateSetDictionary +initializes the compression dictionary +from the given byte sequence +without producing any compressed output. +When using the zlib format, +this function must be called immediately after +.Xr deflateInit 3 , +.Xr deflateInit2 3 , +or +.Xr deflateReset 3 , +and before any call of +.Xr deflate 3 . +When doing raw deflate, +this function must be called +either before any call of +.Xr deflate 3 , +or immediately after the completion of a deflate block, +i.e. after all input has been consumed +and all output has been delivered +when using any of the flush options +.Dv Z_BLOCK , +.Dv Z_PARTIAL_FLUSH , +.Dv Z_SYNC_FLUSH , +or +.Dv Z_FULL_FLUSH . +The compressor and decompressor +must use exactly the same dictionary +.Po +see +.Xr inflateSetDictionary 3 +.Pc . +. +.Pp +The dictionary should consist of strings +(byte sequences) +that are likely to be encountered later +in the data to be compressed, +with the most commonly used strings +preferably put towards the end of the dictionary. +Using a dictionary is most useful +when the data to be compressed is short +and can be predicted with good accuracy; +the data can then be compressed better than +with the default empty dictionary. +. +.Pp +Depending on the size of +the compression data structures selected by +.Xr deflateInit 3 +or +.Xr deflateInit2 3 , +a part of the dictionary may in effect be discarded, +for example if the dictionary is larger +than the window size provided in +.Xr deflateInit 3 +or +.Xr deflateInit2 3 . +Thus the strings most likely to be useful +should be put at the end of the dictionary, +not at the front. +In addition, +the current implementation of deflate +will use at most the window size minus 262 bytes +of the provided dictionary. +. +.Pp +Upon return of this function, +.Fa strm->adler +is set to the Adler-32 value +of the dictionary; +the decompressor may later use this value +to determine which dictionary has been used +by the compressor. +(The Adler-32 value applies to the whole dictionary +even if only a subset of the dictionary +is actually used by the compressor.) +If a raw deflate was requested, +then the Adler-32 value is not computed and +.Fa strm->adler +is not set. +. +.Pp +.Fn deflateSetDictionary +does not perform any compression: +this will be done by +.Xr deflate 3 . +. +.Sh RETURN VALUES +.Fn deflateSetDictionary +returns +.Dv Z_OK +if success, +or +.Dv Z_STREAM_ERROR +if a parameter is invalid +.Po +e.g. dictionary being +.Dv Z_NULL +.Pc +or the stream state is inconsistent +.Po +for example if +.Xr deflate 3 +has already been called for this stream +or if not at a block boundary +for raw deflate +.Pc . +. +.Sh SEE ALSO +.Xr deflateGetDictionary 3 , +.Xr inflateSetDictionary 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/deflateSetHeader.3 b/doc/zlib/deflateSetHeader.3 new file mode 100644 index 00000000..6fec645c --- /dev/null +++ b/doc/zlib/deflateSetHeader.3 @@ -0,0 +1,180 @@ +.Dd January 15, 2017 +.Dt DEFLATESETHEADER 3 +.Os +. +.Sh NAME +.Nm deflateSetHeader +.Nd set gzip header +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +. +.Bd -literal +typedef struct gz_header_s { + int text; + uLong time; + int xflags; + int os; + Bytef *extra; + uInt extra_len; + uInt extra_max; + Bytef *name; + uInt name_max; + Bytef *comment; + uInt comm_max; + int hcrc; + int done; +} gz_header; +.Ed +. +.Pp +.Vt typedef gz_header FAR *gz_headerp; +. +.Ft int +.Fn deflateSetHeader "z_streamp strm" "gz_headerp head" +. +.Sh DESCRIPTION +.Fn deflateSetHeader +provides gzip header information +for when a gzip stream +is requested by +.Xr deflateInit2 3 . +.Fn deflateSetHeader +may be called after +.Xr deflateInit2 3 +or +.Xr deflateReset 3 +and before the first call of +.Xr deflate 3 . +The +text, +time, +OS, +extra field, +name, +and comment +information in the provided +.Vt gz_header +structure +are written to the gzip header +.Po +.Fa xflag +is ignored \(em +the extra flags are set +according to the compression level +.Pc . +The caller must assure that, +if not +.Dv Z_NULL , +.Fa name +and +.Fa comment +are terminated with a zero byte, +and that if +.Fa extra +is not +.Dv Z_NULL , +that +.Fa extra_len +bytes are available there. +If +.Fa hcrc +is true, +a gzip header CRC is included. +Note that the current versions +of the command-line version of +.Xr gzip 1 +(up through version 1.3.x) +do not support header CRCs, +and will report that it is a +"multi-part gzip file" +and give up. +. +.Pp +If +.Fn deflateSetHeader +is not used, +the default gzip header has +text false, +the time set to zero, +and OS set to 255, +with no extra, name, or comment fields. +The gzip header is returned +to the default state by +.Xr deflateReset 3 . +. +.Pp +The fields of +.Vt gz_header +are as follows: +. +.Bl -tag -width "extra_len" +.It Fa text +true if compressed data believed to be text +.It Fa time +modification time +.It Fa xflags +extra flags +(not used when writing a gzip file) +.It Fa os +operating system +.It Fa extra +pointer to extra field or +.Dv Z_NULL +if none +.It Fa extra_len +extra field length +.Po +valid if +.Fa extra +!= +.Dv Z_NULL +.Pc +.It Fa extra_max +space at extra +(only when reading header) +.It Fa name +pointer to zero-terminated file name or +.Dv Z_NULL +.It Fa name_max +space at +.Fa name +(only when reading header) +.It Fa comment +pointer to zero-terminated comment or +.Dv Z_NULL +.It Fa comm_max +space at comment +(only when reading header) +.It Fa hcrc +true if there was or will be a header CRC +.It Fa done +true when done reading gzip header +(not used when writing a gzip file) +.El +. +.Sh RETURN VALUES +.Fn deflateSetHeader +returns +.Dv Z_OK +if success, +or +.Dv Z_STREAM_ERROR +if the source stream state was inconsistent. +. +.Sh SEE ALSO +.Xr gzip 1 , +.Xr deflateInit2 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/deflateTune.3 b/doc/zlib/deflateTune.3 new file mode 100644 index 00000000..7269dec0 --- /dev/null +++ b/doc/zlib/deflateTune.3 @@ -0,0 +1,70 @@ +.Dd January 15, 2017 +.Dt DEFLATETUNE 3 +.Os +. +.Sh NAME +.Nm deflateTune +.Nd fine tune compression parameters +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fo deflateTune +.Fa "z_streamp strm" +.Fa "int good_length" +.Fa "int max_lazy" +.Fa "int nice_length" +.Fa "int max_chain" +.Fc +. +.Sh DESCRIPTION +Fine tune deflate's internal compression parameters. +This should only be used +by someone who understands the algorithm +used by zlib's deflate +for searching for the best matching string, +and even then only by the most fanatic optimizer +trying to squeeze out the last compressed bit +for their specific input data. +Read the +.Pa deflate.c +source code for the meaning of the +.Fa max_lazy , +.Fa good_length , +.Fa nice_length , +and +.Fa max_chain +parameters. +. +.Pp +.Fn deflateTune +can be called after +.Xr deflateInit 3 +or +.Xr deflateInit2 3 . +. +.Sh RETURN VALUES +.Fn deflateTune +returns +.Dv Z_OK +on success, +or +.Dv Z_STREAM_ERROR +for an invalid deflate stream. +. +.Sh SEE ALSO +.Xr deflateInit 3 , +.Xr deflateInit2 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzbuffer.3 b/doc/zlib/gzbuffer.3 new file mode 100644 index 00000000..de7c706a --- /dev/null +++ b/doc/zlib/gzbuffer.3 @@ -0,0 +1,59 @@ +.Dd January 15, 2017 +.Dt GZBUFFER 3 +.Os +. +.Sh NAME +.Nm gzbuffer +.Nd set buffer size +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn gzbuffer "gzFile file" "unsigned size" +. +.Sh DESCRIPTION +Set the internal buffer size +used by this library's functions. +The default buffer size is 8192 bytes. +This function must be called after +.Xr gzopen 3 +or +.Xr gzdopen 3 , +and before any other calls +that read or write the file. +The buffer memory allocation +is always deferred to the first read or write. +Three times that size in buffer space is allocated. +A larger buffer size of, +for example, +64K or 128K bytes +will noticeably increase the speed +of decompression (reading). +. +.Pp +The new buffer size also affects +the maximum length for +.Xr gzprintf 3 . +. +.Sh RETURN VALUES +.Fn gzbuffer +returns 0 on success, +or -1 on failure, +such as being called too late. +. +.Sh SEE ALSO +.Xr gzopen 3 , +.Xr gzprintf 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzclose.3 b/doc/zlib/gzclose.3 new file mode 100644 index 00000000..77eae11e --- /dev/null +++ b/doc/zlib/gzclose.3 @@ -0,0 +1,97 @@ +.Dd January 15, 2017 +.Dt GZCLOSE 3 +.Os +. +.Sh NAME +.Nm gzclose , +.Nm gzclose_r , +.Nm gzclose_w +.Nd close compressed file +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn gzclose "gzFile file" +.Ft int +.Fn gzclose_r "gzFile file" +.Ft int +.Fn gzclose_w "gzFile file" +. +.Sh DESCRIPTION +Flushes all pending output if necessary, +closes the compressed file +and deallocates the (de)compression state. +Note that once +.Fa file +is closed, +you cannot call +.Xr gzerror 3 +with +.Fa file , +since its structures +have been deallocated. +.Fn gzclose +must not be called more than once +on the same file, +just as +.Xr free 3 +must not be called more than once +on the same allocation. +. +.Pp +.Fn gzclose_r +and +.Fn gzclose_w +are the same as +.Fn gzclose , +but +.Fn gzclose_r +is only for use when reading, +and +.Fn gzclose_w +is only for use when writing or appending. +The advantage to using these instead of +.Fn gzclose +is that they avoid linking in +zlib compression or decompression code +that is not used when only reading +or only writing respectively. +If +.Fn gzclose +is used, +then both compression and decompression code +will be included in the application +when linking to a static zlib library. +. +.Sh RETURN VALUES +.Fn gzclose +will return +.Dv Z_STREAM_ERROR +if +.Fa file +is not valid, +.Dv Z_ERRNO +on a file operator error, +.Dv Z_MEM_ERROR +if out of memory, +.Dv Z_BUF_ERROR +if the last read ended in the middle of a gzip stream, +or +.Dv Z_OK +on success. +. +.Sh SEE ALSO +.Xr gzopen 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzdirect.3 b/doc/zlib/gzdirect.3 new file mode 100644 index 00000000..8fa26aae --- /dev/null +++ b/doc/zlib/gzdirect.3 @@ -0,0 +1,85 @@ +.Dd January 15, 2017 +.Dt GZDIRECT 3 +.Os +. +.Sh NAME +.Nm gzdirect +.Nd check direct copy +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn gzdirect "gzFile file" +. +.Sh DESCRIPTION +Returns true (1) if +.Fa file +is being copied directly while reading, +or false (0) if +.Fa file +is a gzip stream being decompressed. +. +.Pp +If the input file is empty, +.Fn gzdirect +will return true, +since the input does not contain a gzip stream. +. +.Pp +If +.Fn gzdirect +is used immediately after +.Xr gzopen 3 +or +.Xr gzdopen 3 +it will cause buffers to be allocated +to allow reading the file +to determine if it is a gzip file. +Therefore if +.Xr gzbuffer 3 +is used, +it should be called before +.Fn gzdirect . +. +.Pp +When writing, +.Fn gzdirect +returns true (1) +if transparent writing was requested +.Po +.Dq wT +for the +.Xr gzopen 3 +mode +.Pc , +or false (0) otherwise. +.Po +Note: +.Fn gzdirect +is not needed when writing. +Transparent writing +must be explicitly requested, +so the application already knows the answer. +When linking statically, +using +.Fn gzdirect +will include all of the zlib code +for gzip file reading and decompression, +which may not be desired. +.Pc +. +.Sh SEE ALSO +.Xr gzopen 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzeof.3 b/doc/zlib/gzeof.3 new file mode 100644 index 00000000..26c415fe --- /dev/null +++ b/doc/zlib/gzeof.3 @@ -0,0 +1,63 @@ +.Dd January 15, 2017 +.Dt GZEOF 3 +.Os +. +.Sh NAME +.Nm gzeof +.Nd check end-of-file indicator +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn gzeof "gzFile file" +. +.Sh DESCRIPTION +Returns true (1) +if the end-of-file indicator +has been set while reading, +false (0) otherwise. +Note that the end-of-file indicator +is set only if the read +tried to go past the end of the input, +but came up short. +Therefore, +just like +.Xr feof 3 , +.Fn gzeof +may return false +even if there is no more data to read, +in the event that the last read request +was for the exact number of bytes +remaining in the input file. +This will happen if the input file size +is an exact multiple of the buffer size. +. +.Pp +If +.Fn gzeof +returns true, +then the read functions +will return no more data, +unless the end-of-file indicator +is reset by +.Xr gzclearerr 3 +and the input file +has grown since the previous +end of file was detected. +. +.Sh SEE ALSO +.Xr gzerror 3 , +.Xr gzread 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzerror.3 b/doc/zlib/gzerror.3 new file mode 100644 index 00000000..13dcddd4 --- /dev/null +++ b/doc/zlib/gzerror.3 @@ -0,0 +1,75 @@ +.Dd January 15, 2017 +.Dt GZERROR 3 +.Os +. +.Sh NAME +.Nm gzerror , +.Nm gzclearerr +.Nd check and reset compressed file error +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft const char * +.Fn gzerror "gzFile file" "int *errnum" +.Ft void +.Fn gzclearerr "gzFile file" +. +.Sh DESCRIPTION +.Fn gzerror +returns the error message for the last error +which occured on the given compressed file. +.Fa errnum +is set to the zlib error number. +If an error occurred in the file system +and not in the compression library, +.Fa errnum +is set to +.Dv Z_ERRNO +and the application may consult +.Va errno +to get the exact error code. +. +.Pp +The application must not modify the returned string. +Future calls to this function +may invalidate the previously returned string. +If +.Fa file +is closed, +then the string previously returned by +.Fn gzerror +will no longer be available. +. +.Pp +.Fn gzerror +should be used to distinguish errors from end-of-file +for those functions that do not distinguish those cases +in their return values. +. +.Pp +.Fn gzclearerr +clears the error and end-of-file for +.Fa file . +This is analogous to the +.Xr clearerr 3 +function in stdio. +This is useful for continuing to read a gzip file +that is being written concurrently. +. +.Sh SEE ALSO +.Xr gzeof 3 , +.Xr gzread 3 , +.Xr gzwrite 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzflush.3 b/doc/zlib/gzflush.3 new file mode 100644 index 00000000..b93c03e7 --- /dev/null +++ b/doc/zlib/gzflush.3 @@ -0,0 +1,73 @@ +.Dd January 15, 2017 +.Dt GZFLUSH 3 +.Os +. +.Sh NAME +.Nm gzflush +.Nd flush output to compressed file +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn gzflush "gzFile file" "int flush" +. +.Sh DESCRIPTION +Flushes all pending output +into the compressed file. +The parameter +.Fa flush +is as in the +.Xr deflate 3 +function. +.Fn gzflush +is only permitted when writing. +. +.Pp +If the +.Fa flush +parameter is +.Dv Z_FINISH , +the remaining data is written +and the gzip stream +is completed in the output. +If +.Xr gzwrite 3 +is called again, +a new gzip stream +will be started in the output. +.Xr gzread 3 +is able to read +such concatenated gzip streams. +. +.Pp +.Fn gzflush +should be called only when strictly necessary +because it will degrade compression +if called too often. +. +.Sh RETURN VALUES +The return value +is the zlib error number +.Po +see function +.Xr gzerror 3 +.Pc . +. +.Sh SEE ALSO +.Xr deflate 3 , +.Xr gzerror 3 , +.Xr gzread 3 , +.Xr gzwrite 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzfread.3 b/doc/zlib/gzfread.3 new file mode 100644 index 00000000..66231cc3 --- /dev/null +++ b/doc/zlib/gzfread.3 @@ -0,0 +1,107 @@ +.Dd January 15, 2017 +.Dt GZFREAD 3 +.Os +. +.Sh NAME +.Nm gzfread +.Nd read from compressed file +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft z_size_t +.Fn gzfread "voidp buf" "z_size_t size" "z_size_t nitems" "gzFile file" +. +.Sh DESCRIPTION +Read up to +.Fa nitems +of size +.Fa size +from +.Fa file +to +.Fa buf , +otherwise operating as +.Xr gzread 3 +does. +This duplicates the interface of stdio's +.Xr fread 3 , +with +.Vt size_t +request and return types. +If the library defines +.Vt size_t , +then +.Vt z_size_t +is identical to +.Vt size_t . +If not, +then +.Vt z_size_t +is an unsigned integer type +that can contain a pointer. +. +.Pp +In the event that the end of file is reached +and only a partial item is available at the end, +i.e. the remaining uncompressed data length +is not a multiple of +.Fa size , +then the file partial item +is nevertheless read into +.Fa buf +and the end-of-file flag is set. +The length of the partial item read +is not provided, +but could be inferred from the result of +.Xr gztell 3 . +This behavior is the same as the behavior of +.Xr fread 3 +implementations in common libraries, +but it prevents the direct use of +.Fn gzfread +to read a concurrently written file, +reseting and retrying on end-of-file, +when +.Fa size +is not 1. +. +.Sh RETURN VALUES +.Fn gzfread +returns the number of full items read of size +.Fa size , +or zero if the end of the file was reached +and a full item could not be read, +or if there was an error. +.Xr gzerror 3 +must be consulted if zero is returned +in order to determine if there was an error. +If the multiplication of +.Fa size +and +.Fa nitems +overflows, +i.e. the product does not fit in +.Vt z_size_t , +then nothing is read, +zero is returned, +and the error state is set to +.Dv Z_STREAM_ERROR . +. +.Sh SEE ALSO +.Xr gzeof 3 , +.Xr gzerror 3 , +.Xr gzopen 3 , +.Xr gzread 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzfwrite.3 b/doc/zlib/gzfwrite.3 new file mode 100644 index 00000000..38383a33 --- /dev/null +++ b/doc/zlib/gzfwrite.3 @@ -0,0 +1,75 @@ +.Dd January 15, 2017 +.Dt GZFWRITE 3 +.Os +. +.Sh NAME +.Nm gzfwrite +.Nd write to compressed file +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft z_size_t +.Fn gzfwrite "voidpc buf" "z_size_t size" "z_size_t nitems" "gzFile file" +. +.Sh DESCRIPTION +.Fn gzfwrite +writes +.Fa nitems +items of size +.Fa size +from +.Fa buf +to +.Fa file , +duplicating the interface of stdio's +.Xr fwrite 3 , +with +.Vt size_t +request and return types. +If the library defines +.Vt size_t , +then +.Vt z_size_t +is identical to +.Vt size_t . +If not, +then +.Vt z_size_t +is an unsigned integer type +that can contain a pointer. +. +.Sh RETURN VALUES +.Fn gzfwrite +returns the number of full items +written of size +.Fa size , +or zero if there was an error. +If the multiplication of +.Fa size +and +.Fa nitems +overflows, +i.e. the product does not fit in a +.Vt z_size_t , +then nothing is written, +zero is returned, +and the error state is set to +.Dv Z_STREAM_ERROR . +. +.Sh SEE ALSO +.Xr gzerror 3 , +.Xr gzopen 3 , +.Xr gzwrite 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzgetc.3 b/doc/zlib/gzgetc.3 new file mode 100644 index 00000000..93a90edd --- /dev/null +++ b/doc/zlib/gzgetc.3 @@ -0,0 +1,55 @@ +.Dd January 15, 2017 +.Dt GZGETC 3 +.Os +. +.Sh NAME +.Nm gzgetc +.Nd get character from compressed file +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn gzgetc "gzFile file" +. +.Sh DESCRIPTION +Reads one byte from the compressed file. +This is implemented as a macro for speed. +As such, +it does not do all of the checking +the other functions do. +I.e.\& +it does not check to see if +.Fa file +is +.Dv NULL , +nor whether the structure +.Fa file +points to has been clobbered or not. +. +.Sh RETURN VALUES +.Fn gzgetc +returns the byte +or -1 in case of +end of file +or error. +. +.Sh SEE ALSO +.Xr gzeof 3 , +.Xr gzerror 3 , +.Xr gzgets 3 , +.Xr gzopen 3 , +.Xr gzread 3 , +.Xr gzungetc 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzgets.3 b/doc/zlib/gzgets.3 new file mode 100644 index 00000000..2a329e9e --- /dev/null +++ b/doc/zlib/gzgets.3 @@ -0,0 +1,67 @@ +.Dd January 15, 2017 +.Dt GZGETS 3 +.Os +. +.Sh NAME +.Nm gzgets +.Nd read line from compressed file +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft char * +.Fn gzgets "gzFile file" "char *buf" "int len" +. +.Sh DESCRIPTION +Reads bytes from the compressed file +until +.Fa len-1 +characters are read, +or a newline character +is read and transferred to +.Fa buf , +or an end-of-file condition +is encountered. +If any characters are read or if +.Fa len +== 1, +the string is terminated +with a null character. +If no characters are read +due to an end-of-file or +.Fa len +< 1, +then the buffer is left untouched. +. +.Sh RETURN VALUES +.Fn gzgets +returns +.Fa buf +which is a null-terminated string, +or it returns +.Dv NULL +for end-of-file +or in case of error. +If there was an error, +the contents at +.Fa buf +are indeterminate. +. +.Sh SEE ALSO +.Xr gzeof 3 , +.Xr gzerror 3 , +.Xr gzgetc 3 , +.Xr gzopen 3 , +.Xr gzread 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzoffset.3 b/doc/zlib/gzoffset.3 new file mode 100644 index 00000000..cbb78a77 --- /dev/null +++ b/doc/zlib/gzoffset.3 @@ -0,0 +1,51 @@ +.Dd January 15, 2017 +.Dt GZOFFSET 3 +.Os +. +.Sh NAME +.Nm gzoffset +.Nd offset in compressed file +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft z_off_t +.Fn gzoffset "gzFile file" +. +.Sh DESCRIPTION +Returns the current offset +in the file being read or written. +This offset includes +the count of bytes +that precede the gzip stream, +for example when appending +or when using +.Xr gzdopen 3 +for reading. +When reading, +the offset does not include +as yet unused buffered input. +This information can be used +for a progress indicator. +. +.Sh RETURN VALUES +On error, +.Fn gzoffset +returns -1. +. +.Sh SEE ALSO +.Xr gzerror 3 , +.Xr gzopen 3 , +.Xr gzseek 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzopen.3 b/doc/zlib/gzopen.3 new file mode 100644 index 00000000..e3cb4cbd --- /dev/null +++ b/doc/zlib/gzopen.3 @@ -0,0 +1,261 @@ +.Dd January 15, 2017 +.Dt GZOPEN 3 +.Os +. +.Sh NAME +.Nm gzopen , +.Nm gzdopen +.Nd open gzip file +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft gzFile +.Fn gzopen "const char *path" "const char *mode" +.Ft gzFile +.Fn gzdopen "int fd" "const char *mode" +. +.Sh DESCRIPTION +Opens a gzip (.gz) file +for reading or writing. +The +.Fa mode +parameter is as in +.Xr fopen 3 +.Po +.Dq rb +or +.Dq wb +.Pc +but can also include a compression level +.Pq Dq wb9 +or a strategy: +.Sq f +for filtered data as in +.Dq wb6f , +.Sq h +for Huffman-only compression as in +.Dq wb1h , +.Sq R +for run-length encoding as in +.Dq wb1R , +or +.Sq F +for fixed code compression as in +.Dq wb9F . +.Po +See the description of +.Xr deflateInit2 3 +for more information about the +.Fa strategy +parameter. +.Pc \& +.Sq T +will request transparent writing or appending +with no compression +and not using the gzip format. +. +.Pp +.Dq a +can be used instead of +.Dq w +to request that the gzip stream +that will be written +be appended to the file. +.Dq + +will result in an error, +since reading and writing +to the same gzip file +is not supported. +The addition of +.Dq x +when writing will create the file exclusively, +which fails if the file already exists. +On systems that support it, +the addition of +.Dq e +when reading or writing +will set the flag to close the file on an +.Xr execve 2 +call. +. +.Pp +These functions, +as well as +.Xr gzip 1 , +will read and decode +a sequence of gzip streams in a file. +The append function of +.Fn gzopen +can be used to create such a file. +.Po +Also see +.Xr gzflush 3 +for another way to do this. +.Pc \& +When appending, +.Fn gzopen +does not test whether the file begins with a gzip stream, +nor does it look for the end of the gzip streams +to begin appending. +.Fn gzopen +will simply append a gzip stream +to the existing file. +. +.Pp +.Fn gzopen +can be used to read a file which is not in gzip format; +in this case +.Xr gzread 3 +will directly read from the file without decompression. +When reading, +this will be detected automatically +by looking for the magic two-byte gzip header. +. +.Pp +.Fn gzdopen +associates at +.Vt gzFile +with the file descriptor +.Fa fd . +File descriptors +are obtained from calls like +.Xr open 2 , +.Xr dup 2 , +.Xr creat 2 , +.Xr pipe 2 +or +.Xr fileno 3 +.Po +if the file has been previously opened with +.Xr fopen 3 +.Pc . +The +.Fa mode +parameter is as in +.Fn gzopen . +. +.Pp +The next call of +.Xr gzclose 3 +on the returned +.Vt gzFile +will also close the file descriptor +.Fa fd , +just like +.Xr fclose 3 . +If you want to keep +.Fa fd +open, +use +.Li "fd = dup(fd_keep); gz = gzdopen(fd, mode)" . +The duplicated descriptor should be saved +to avoid a leak, +since +.Fn gzdopen +does not close +.Fa fd +if it fails. +If you are using +.Xr fileno 3 +to get the file descriptor from a +.Vt FILE * , +then you will have to use +.Xr dup 2 +to avoid double-closing +the file descriptor. +Both +.Xr gzclose 3 +and +.Xr flcose 3 +will close the associated file descriptor, +so they need to have different file descriptors. +. +.Sh RETURN VALUES +.Fn gzopen +and +.Fn gzdopen +return +.Dv NULL +if the file could not be opened, +if there was insufficient memory +to allocate the +.Vt gzFile +state, +or if an invalid +.Fa mode +was specified +.Po +an +.Sq r , +.Sq w , +or +.Sq a +was not provided, +or +.Sq + +was provided +.Pc , +or if +.Fa fd +is -1. +The file descriptor +is not used until the next +gz* read, write, seek, or close operation, +so +.Fn gzdopen +will not detect if +.Fa fd +is invalid +.Po +unless +.Fa fd +is -1 +.Pc . +.Va errno +can be checked +to determine if the reason +.Fn gzopen +failed was that the file +could not be opened. +. +.Sh ERRORS +The +.Fn gzopen +function may fail and set +.Va errno +for any of the errors specified +for the routine +.Xr fopen 3 . +. +.Sh SEE ALSO +.Xr deflateInit2 3 , +.Xr fopen 3 , +.Xr gzbuffer 3 , +.Xr gzclose 3 , +.Xr gzdirect 3 , +.Xr gzeof 3 , +.Xr gzerror 3 , +.Xr gzflush 3 , +.Xr gzgetc 3 , +.Xr gzgets 3 , +.Xr gzoffset 3 , +.Xr gzprintf 3 , +.Xr gzputc 3 , +.Xr gzputs 3 , +.Xr gzread 3 , +.Xr gzseek 3 , +.Xr gzsetparams 3 , +.Xr gzwrite 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzprintf.3 b/doc/zlib/gzprintf.3 new file mode 100644 index 00000000..26961f34 --- /dev/null +++ b/doc/zlib/gzprintf.3 @@ -0,0 +1,71 @@ +.Dd January 15, 2017 +.Dt GZPRINTF 3 +.Os +. +.Sh NAME +.Nm gzprintf +.Nd format output to compressed file +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn gzprintf "gzFile file" "const char *format" "..." +. +.Sh DESCRIPTION +Converts, formats, and writes the arguments +to the compressed file +under control of the format string, +as in +.Xr fprintf 3 . +. +.Sh RETURN VALUES +.Fn gzprintf +returns the number of +uncompressed bytes actually written, +or a negative zlib error code +in case of error. +The number of uncompressed bytes written +is limited to 8191, +or one less than the buffer size given to +.Xr gzbuffer 3 . +The caller should assure that +this limit is not exceeded. +If it is exceeded, +then +.Fn gzprintf +will return an error (0) +with nothing written. +In this case, +there may also be a buffer overflow +with unpredictable consequences, +which is possibly only if zlib +was compiled with the insecure functions +.Xr sprintf 3 +or +.Xr vsprintf 3 +because the secure +.Xr snprintf 3 +or +.Xr vsnprintf 3 +functions +were not available. +This can be determined using +.Xr zlibCompileFlags 3 . +. +.Sh SEE ALSO +.Xr fprintf 3 , +.Xr gzerror 3 , +.Xr gzopen 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzputc.3 b/doc/zlib/gzputc.3 new file mode 100644 index 00000000..161e5631 --- /dev/null +++ b/doc/zlib/gzputc.3 @@ -0,0 +1,43 @@ +.Dd January 15, 2017 +.Dt GZPUTC 3 +.Os +. +.Sh NAME +.Nm gzputc +.Nd write character to compressed file +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn gzputc "gzFile file" "int c" +. +.Sh DESCRIPTION +Writes +.Fa c , +converted to an +.Vt unsigned char , +into the compressed file. +. +.Sh RETURN VALUES +.Fn gzputc +returns the value that was written, +or -1 in case of error. +. +.Sh SEE ALSO +.Xr gzerror 3 , +.Xr gzopen 3 , +.Xr gzputs 3 , +.Xr gzwrite 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzputs.3 b/doc/zlib/gzputs.3 new file mode 100644 index 00000000..f5d1fd84 --- /dev/null +++ b/doc/zlib/gzputs.3 @@ -0,0 +1,41 @@ +.Dd January 15, 2017 +.Dt GZPUTS 3 +.Os +. +.Sh NAME +.Nm gzputs +.Nd write string to compressed file +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn gzputs "gzFile file" "const char *s" +. +.Sh DESCRIPTION +Writes the given null-terminated string +to the compressed file, +excluding the terminating null character. +. +.Sh RETURN VALUES +.Fn gzputs +returns the number of characters written, +or -1 in case of error. +. +.Sh SEE ALSO +.Xr gzerror 3 , +.Xr gzopen 3 , +.Xr gzputc 3 , +.Xr gzwrite 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzread.3 b/doc/zlib/gzread.3 new file mode 100644 index 00000000..84439eaa --- /dev/null +++ b/doc/zlib/gzread.3 @@ -0,0 +1,115 @@ +.Dd January 15, 2017 +.Dt GZREAD 3 +.Os +. +.Sh NAME +.Nm gzread +.Nd read from compressed file +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn gzread "gzFile file" "voidp buf" "unsigned len" +. +.Sh DESCRIPTION +Reads the given number of uncompressed bytes +from the compressed file. +If the input file +is not in gzip format, +.Fn gzread +copies the given number of bytes +into the buffer directly from the file. +. +.Pp +After reaching the end of a gzip stream +in the input, +.Fn gzread +will continue to read, +looking for another gzip stream. +Any number of gzip streams +may be concatenated in the input file, +and will all be decompressed by +.Fn gzread . +If something other than a gzip stream +is encountered after a gzip stream, +that remaining trailing garbage is ignored +(and no error is returned). +. +.Pp +.Fn gzread +can be used to read a gzip file +that is being concurrently written. +Upon reaching the end of the input, +.Fn gzread +will return with the available data. +If the error code returned by +.Xr gzerror 3 +is +.Dv Z_OK +or +.Dv Z_BUF_ERROR , +then +.Xr gzclearerr 3 +can be used +to clear the end of file indicator +in order to permit +.Fn gzread +to be tried again. +.Dv Z_OK +indicates that a gzip stream was completed +on the last +.Fn gzread . +.Dv Z_BUF_ERROR +indicates that the input file +ended in the middle of a gzip stream. +Note that +.Fn gzread +does not return -1 +in the event of an incomplete gzip stream. +This error is deferred until +.Xr gzclose 3 , +which will return +.Dv Z_BUF_ERROR +if the last +.Fn gzread +ended in the middle of a gzip stream. +Alternatively, +.Xr gzerror 3 +can be used before +.Xr gzclose 3 +to detect this case. +. +.Sh RETURN VALUES +.Fn gzread +returns the number of uncompressed bytes actually read, +less than +.Fa len +for end of file, +or -1 for error. +If +.Fa len +is too large to fit in an +.Vt int , +then nothing is read, +-1 is returned, +and the error state is set to +.Dv Z_STREAM_ERROR . +. +.Sh SEE ALSO +.Xr gzeof 3 , +.Xr gzerror 3 , +.Xr gzfread 3 , +.Xr gzopen 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzseek.3 b/doc/zlib/gzseek.3 new file mode 100644 index 00000000..cd85fd4c --- /dev/null +++ b/doc/zlib/gzseek.3 @@ -0,0 +1,108 @@ +.Dd January 15, 2017 +.Dt GZSEEK 3 +.Os +. +.Sh NAME +.Nm gzseek , +.Nm gzrewind , +.Nm gztell +.Nd seek compressed file +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft z_off_t +.Fn gzseek "gzFile file" "z_off_t offset" "int whence" +.Ft int +.Fn gzrewind "gzFile file" +.Ft z_off_t +.Fn gztell "gzFile file" +. +.Sh DESCRIPTION +Sets the starting position +for the next +.Xr gzread 3 +or +.Xr gzwrite 3 +on the given compressed file. +The +.Fa offset +represents a number of bytes +in the uncompressed data stream. +The +.Fa whence +parameter +is defined as in +.Xr lseek 2 ; +the value +.Dv SEEK_END +is not supported. +. +.Pp +If the file is opened for reading, +this function is emulated +but can be extremely slow. +If the file is opened for writing, +only forward seeks are supported; +.Fn gzseek +then compresses a sequence of zeroes +up to the new starting position. +. +.Pp +.Fn gzrewind +rewinds the given file. +This function is supported +only for reading. +. +.Pp +.Fn gzrewind file +is equivalent to +.Li (int) Ns Fn gzseek file 0L SEEK_SET . +. +.Pp +.Fn gztell +returns the starting position +for the next +.Xr gzread 3 +or +.Xr gzwrite 3 +on the given compressed file. +This position represents a number of bytes +in the uncompressed data stream, +and is zero when starting, +even if appending or reading +a gzip stream from the middle of a file using +.Xr gzdopen 3 . +. +.Pp +.Fn gztell file +is equivalent to +.Fn gzseek file 0L SEEK_CUR . +. +.Sh RETURN VALUES +.Fn gzseek +returns the resulting offset location +as measured in bytes +from the beginning of the uncompressed stream, +or -1 in case of error, +in particular if the file +is opened for writing +and the new starting position +would be before the current position. +. +.Sh SEE ALSO +.Xr gzerror 3 , +.Xr gzoffset 3 , +.Xr gzopen 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzsetparams.3 b/doc/zlib/gzsetparams.3 new file mode 100644 index 00000000..ff544d23 --- /dev/null +++ b/doc/zlib/gzsetparams.3 @@ -0,0 +1,51 @@ +.Dd January 15, 2017 +.Dt GZSETPARAMS 3 +.Os +. +.Sh NAME +.Nm gzsetparams +.Nd set compression level and strategy +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn gzsetparams "gzFile file" "int level" "int strategy" +. +.Sh DESCRIPTION +Dynamically update the compression level or strategy. +See the description of +.Xr deflateInit2 3 +for the meaning +of these parameters. +Previously provided data is flushed +before the parameter change. +. +.Sh RETURN VALUES +.Fn gzsetparams +returns +.Dv Z_OK +if success, +.Dv Z_STREAM_ERROR +if the file was not opened for writing, +.Dv Z_ERRNO +if there is an error writing the flushed data, +or +.Dv Z_MEM_ERROR +if there is a memory allocation error. +. +.Sh SEE ALSO +.Xr deflateInit2 3 , +.Xr gzopen 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzungetc.3 b/doc/zlib/gzungetc.3 new file mode 100644 index 00000000..90cdafc7 --- /dev/null +++ b/doc/zlib/gzungetc.3 @@ -0,0 +1,67 @@ +.Dd January 15, 2017 +.Dt GZUNGETC 3 +.Os +. +.Sh NAME +.Nm gzungetc +.Nd un-get character from compressed file +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn gzungetc "int c" "gzFile file" +. +.Sh DESCRIPTION +Push one character back onto the stream +to be read as the first character +on the next read. +At least one character of push-back +is allowed. +.Fn gzungetc +will fail if +.Fa c +is -1, +and may fail if a character +has been pushed +but not read yet. +If +.Fn gzungetc +is used immediately after +.Xr gzopen 3 +or +.Xr gzdopen 3 , +at least the output buffer size +of pushed characters is allowed. +.Po +See +.Xr gzbuffer 3 . +.Pc \& +The pushed character will be discarded +if the stream is repositioned with +.Xr gzseek 3 +or +.Xr gzrewind 3 . +. +.Sh RETURN VALUES +.Fn gzungetc +returns the character pushed, +or -1 on failure. +. +.Sh SEE ALSO +.Xr gzbuffer 3 , +.Xr gzerror 3 , +.Xr gzgetc 3 , +.Xr gzopen 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/gzwrite.3 b/doc/zlib/gzwrite.3 new file mode 100644 index 00000000..606d89f4 --- /dev/null +++ b/doc/zlib/gzwrite.3 @@ -0,0 +1,39 @@ +.Dd January 15, 2017 +.Dt GZWRITE 3 +.Os +. +.Sh NAME +.Nm gzwrite +.Nd write to compressed file +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn gzwrite "gzFile file" "voidpc buf" "unsigned len" +. +.Sh DESCRIPTION +Writes the given number of uncompressed bytes +into the compressed file. +. +.Sh RETURN VALUES +.Fn gzwrite +returns the number of uncompressed bytes written +or 0 in case of error. +. +.Sh SEE ALSO +.Xr gzerror 3 , +.Xr gzfwrite 3 , +.Xr gzopen 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/inflate.3 b/doc/zlib/inflate.3 new file mode 100644 index 00000000..ca90c270 --- /dev/null +++ b/doc/zlib/inflate.3 @@ -0,0 +1,398 @@ +.Dd January 15, 2017 +.Dt INFLATE 3 +.Os +. +.Sh NAME +.Nm inflate +.Nd deflate decompression +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn inflate "z_streamp strm" "int flush" +. +.Sh DESCRIPTION +.Fn inflate +decompresses as much data as possible, +and stops when the input buffer becomes empty +or the output buffer becomes full. +It may introduce some output latency +(reading input without producing any output) +except when forced to flush. +. +.Pp +The detailed semantics are as follows. +.Fn inflate +performs one or both of the following actions: +. +.Bl -dash +.It +Decompress more input starting at +.Fa next_in +and update +.Fa next_in +and +.Fa avail_in +accordingly. +If not all input can be processed +(because there is not enough room in the output buffer), +then +.Fa next_in +and +.Fa avail_in +are updated accordingly, +and processing will resume at this point +for the next call of +.Fn inflate . +. +.It +Generate more output starting at +.Fa next_out +and update +.Fa next_out +and +.Fa avail_out +accordingly. +.Fn inflate +provides as much output as possible, +until there is no more input data +or no more space in the output buffer +.Po +see below about the +.Fa flush +parameter +.Pc . +.El +. +.Pp +Before the call of +.Fn inflate , +the application should ensure that +at least one of the actions is possible, +by providing more input +and/or consuming more output, +and updating the +.Fa next_* +and +.Fa avail_* +values accordingly. +If the caller of +.Fn inflate +does not provide both available input +and available output space, +it is possible that there will be no progress made. +The application can consume the uncompressed output +when it wants, +for example when the output buffer is full +.Po +.Fa avail_out +== 0 +.Pc , +or after each call of +.Fn inflate . +If +.Fn inflate +returns +.Dv Z_OK +and with zero +.Fa avail)out , +it must be called again after making room +in the output buffer +because there might be more output pending. +. +.Pp +The +.Fa flush +parameter of +.Fn inflate +can be +.Dv Z_NO_FLUSH , +.Dv Z_SYNC_FLUSH , +.Dv Z_FINISH , +.Dv Z_BLOCK , +or +.Dv Z_TREES . +.Dv Z_SYNC_FLUSH +requests that +.Fn inflate +flush as much output as possible +to the output buffer. +.Dv Z_BLOCK +requests that +.Fn inflate +stop if and when it gets to the next deflate block boundary. +When decoding the zlib or gzip format, +this will cause +.Fn inflate +to return immediately after the header +and before the first block. +When doing a raw inflate, +.Fn inflate +will go ahead and process the first block, +and will return when it gets to the end of that block, +or when it runs out of data. +. +.Pp +The +.Dv Z_BLOCK +option assists in appending to +or combining deflate streams. +To assist in this, +on return +.Fn inflate +always sets +.Fa strm->data_type +to the number of unused bits +in the last byte taken from +.Fa strm->next_in , +plus 64 if +.Fn inflate +is currently decoding the last block in the deflate stream, +plus 128 if +.Fn inflate +returned immediately after decoding an end-of-block code +or decoding the complete header up to +just before the first byte of the deflate stream. +The end-of-block will not be indicated +until all of the uncompressed data +from that block has been written to +.Fa strm->next_out . +The number of unused bits may in general be greater than seven, +except when bit 7 of +.Fa data_type +is set, +in which case the number of unused bits +will be less than eight. +.Fa data_type +is set as noted here every time +.Fn inflate +returns for all flush options, +and so can be used to determine +the amount of currently consumed input in bits. +. +.Pp +The +.Dv Z_TREES +option behaves as +.Dv Z_BLOCK +does, +but it also returns +when the end of each deflate block header is reached, +before any actual data in that block is decoded. +This allows the caller to determine +the length of the deflate block header +for later use in random access +within a deflate block. +256 is added to the value of +.Fa strm->data_type +when +.Fn inflate +returns immediately after reaching +the end of the deflate block header. +. +.Pp +.Fn inflate +should normally be called until it returns +.Dv Z_STREAM_END +or an error. +However if all decompression is to be performed +in a single step +.Po +a single call of +.Fn inflate +.Pc , +the parameter +.Fa flush +should be set to +.Dv Z_FINISH . +In this case all pending input is processed +and all pending output is flushed; +.Fa avail_out +must be large enough to hold all of +the uncompressed data for the operation to complete. +(The size of the uncompressed data +may have been saved by the compressor for this purpose.) +The use of +.Dv Z_FINISH +is not required to perform inflation in one step. +However it may be used to inform +.Fn inflate +that a faster approach can be used for the single +.Fn inflate +call. +.Dv Z_FINISH also informs +.Fn inflate +to not maintain a sliding window +if the stream completes, +which reduces +.Fn inflate Ap s +memory footprint. +If the stream does not complete, +either because not all of the stream is provided +or not enough output space is provided, +then a sliding window will be allocated and +.Fn inflate +can be called again to continue the operation as if +.Dv Z_NO_FLUSH +had been used. +. +.Pp +In this implementation, +.Fn inflate +always flushes as much output as possible +to the output buffer, +and always uses the faster approach +on the first call. +So the effects of the +.Fa flush +parameter in this implementation +are on the return value of +.Fn inflate +as noted below, +when +.Fn inflate +returns early when +.Dv Z_BLOCK +or +.Dv Z_TREES +is used, +and when +.Fn inflate +avoids the allocation of memory +for a sliding window when +.Dv Z_FINISH +is used. +. +.Pp +If a preset dictionary is needed after this call +.Po +see +.Xr inflateSetDictionary 3 +.Pc , +.Fn inflate +sets +.Fa strm->adler +to the Adler-32 checksum of the dictionary +chosen by the compressor +and returns +.Dv Z_NEED_DICT ; +otherwise it sets +.Fa strm->adler +to the Adler-32 checksum +of all output produced so far +.Po +that is, +.Fa total_out +bytes +.Pc +and returns +.Dv Z_OK , +.Dv Z_STREAM_END +or an error code +as described in +.Sx RETURN VALUES . +At the end of the stream, +.Fn inflate +checks that its computed Adler-32 checksum +is equal to that saved by the compressor +and returns +.Dv Z_STREAM_END +only if the checksum is correct. +. +.Pp +.Fn inflate +can decompress and check +either zlib-wrapped or gzip-wrapped +deflate data. +The header type is detected automatically, +if requested when initializing with +.Xr inflateInit2 3 . +Any information contained in the gzip header +is not retained unless +.Xr inflateGetHeader 3 +is used. +When processing gzip-wrapped deflate data, +.Fa strm->adler32 +is set to the CRC-32 +of the output produced so far. +The CRC-32 is checked against the gzip trailer, +as is the uncompressed length, +modulo 2^32. +. +.Sh RETURN VALUES +.Fn inflate +returns +.Dv Z_OK +if some progress has been made +(more input processed or more output produced), +.Dv Z_STREAM_END +if the end of the compressed data has been reached +and all uncompressed output has been produced, +.Dv Z_NEED_DICT +if a preset dictionary is needed at this point, +.Dv Z_DATA_ERROR +if the input data was corrupted +.Po +input stream not conforming to the zlib format +or incorrect check value, +in which case +.Fa strm->msg +points to a string with a more specific error +.Pc , +.Dv Z_STREAM_ERROR +if the stream structure was inconsistent +.Po +for example +.Fa next_in +or +.Fa next_out +was +.Dv Z_NULL , +or the state was inadvertently written over +by the application +.Pc , +.Dv Z_MEM_ERROR +if there was not enough memory, +.Dv Z_BUF_ERROR +if no progress was possible +or if there was not enough room +in the output buffer when +.Dv Z_FINISH +is used. +Note that +.Dv Z_BUF_ERROR +is not fatal, +and +.Fn inflate +can be called again with more input +and more output space +to continue decompressing. +If +.Dv Z_DATA_ERROR +is returned, +the application may then call +.Xr inflateSync 3 +to look for a good compression block +if a partial recovery of the data +is to be attempted. +. +.Sh SEE ALSO +.Xr deflate 3 , +.Xr inflateBack 3 , +.Xr inflateEnd 3 , +.Xr inflateInit 3 , +.Xr inflateMark 3 , +.Xr inflateSync 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/inflateBack.3 b/doc/zlib/inflateBack.3 new file mode 100644 index 00000000..59d5f8cb --- /dev/null +++ b/doc/zlib/inflateBack.3 @@ -0,0 +1,285 @@ +.Dd January 15, 2017 +.Dt INFLATEBACK 3 +.Os +. +.Sh NAME +.Nm inflateBack +.Nd inflate call-back interface +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +. +.Ft typedef unsigned +.Fo (*in_func) +.Fa "void FAR *" +.Fa "z_const unsigned char FAR * FAR *" +.Fc +. +.Ft typedef int +.Fo (*out_func) +.Fa "void FAR *" +.Fa "unsigned char FAR *" +.Fa "unsigned" +.Fc +. +.Ft int +.Fo inflateBack +.Fa "z_streamp strm" +.Fa "in_func in" +.Fa "void FAR *in_desc" +.Fa "out_func out" +.Fa "void FAR *out_desc" +.Fc +. +.Sh DESCRIPTION +.Fn inflateBack +does a raw inflate +with a single call +using a call-back interface +for input and output. +This is potentially more efficient than +.Xr inflate 3 +for file I/O applications, +in that it avoids copying between the output +and the sliding window +by simply making the window itself the output buffer. +.Xr inflate 3 +can be faster on modern CPUs +when used with large buffers. +.Fn inflateBack +trusts the application to not change +the output buffer passed by the output function, +at least until +.Fn inflateBack +returns. +. +.Pp +.Xr inflateBackInit 3 +must be called first +to allocate the internal state +and to initialize the state +with the user-provided window buffer. +.Fn inflateBack +may then be used multiple times +to inflate a complete, +raw deflate stream +with each call. +.Xr inflateBackEnd 3 +is then called to free the allocated state. +. +.Pp +A raw deflate stream +is one with no zlib or gzip header or trailer. +This routine would normally be used +in a utility that reads zip or gzip files +and write out uncompressed files. +The utility would decode the header +and process the trailer on its own, +hence this routine expects only +the raw deflate stream to decompress. +This is different from the default behaviour of +.Xr inflate 3 , +which expects a zlib header and trailer +around the deflate stream. +. +.Pp +.Fn inflateBack +uses two subroutines +supplied by the caller +that are then called by +.Fn inflateBack +for input and output. +.Fn inflateBack +calls those routines +until it reads a complete deflate stream +and writes out all of the uncompressed data, +or until it encounters an error. +The function's parameters and return types +are defined above in the +.Vt in_func +and +.Vt out_func +typedefs. +.Fn inflateBack +will call +.Fn in in_desc &buf +which should return +the number of bytes of provided input, +and a pointer to that input in +.Fa buf . +If there is no input available, +.Fn in +must return zero \(em +.Fa buf +is ignored in that case \(em +and +.Fn inflateBack +will return a buffer error. +.Fn inflateBack +will call +.Fn out out_desc buf len +to write the uncompressed data +.Fa buf[0..len-1] . +.Fn out +should return zero on success, +or non-zero on failure. +If +.Fn out +returns non-zero, +.Fn inflateBack +will return with an error. +Neither +.Fn in +nor +.Fn out +are permitted to change +the contents of the window provided to +.Xr inflateBackInit 3 , +which is also the buffer that +.Fn out +uses to write from. +The length written by +.Fn out +will be at most the window size. +Any non-zero amount of input +may be provided by +.Fn in . +. +.Pp +For convenience, +.Fn inflateBack +can be provided input on the first call +by setting +.Fa strm->next_in +and +.Fa strm->avail_in . +If that input is exhausted, +then +.Fn in +will be called. +Therefore +.Fa strm->next_in +must be initialized before calling +.Fn inflateBack . +If +.Fa strm->next_in +is +.Dv Z_NULL , +then +.Fn in +will be called immediately for input. +If +.Fa strm->next_in +is not +.Dv Z_NULL , +then +.Fa strm->avail_in +must also be initialized, +and then if +.Fa strm->avail_in +is not zero, +input will initially be taken from +.Fa "strm->next_in[0 .. strm->avail_in - 1]" . +. +.Pp +The +.Fa in_desc +and +.Fa out_desc +parameters of +.Fn inflateBack +is passed as the first parameter of +.Fn in +and +.Fn out +respectively when they are called. +These descriptors can be optionally used +to pass any information that the caller-supplied +.Fn in +and +.Fn out +functions need to do their job. +. +.Sh RETURN VALUES +On return, +.Fn inflateBack +will set +.Fa strm->next_in +and +.Fa strm->avail_in +to pass back any unused input +that was provided by the last +.Fn in +call. +The return values of +.Fn inflateBack +can be +.Dv Z_STREAM_END +on success, +.Dv Z_BUF_ERROR +if +.Fn in +or +.Fn out +returned an error, +.Dv Z_DATA_ERROR +if there was a format error +in the deflate stream +.Po +in which case +.Fa strm->msg +is set to indicate the nature of the error +.Pc , +or +.Dv Z_STREAM_ERROR +if the stream was not properly initialized. +In the case of +.Dv Z_BUF_ERROR , +an input or output error can be distinguished using +.Fa strm->next_in +which will be +.Dv Z_NULL +only if +.Fn in +returned an error. +If +.Fa strm->next_in +is not +.Dv Z_NULL , +then the +.Dv Z_BUF_ERROR +was due to +.Fn out +returning non-zero. +.Po +.Fn in +will always be called before +.Fn out , +so +.Fa strm->next_in +is assured to be defined if +.Fa out +returns non-zero. +.Pc \& +Note that +.Fn inflateBack +cannot return +.Dv Z_OK . +. +.Sh SEE ALSO +.Xr inflate 3 , +.Xr inflateBackEnd 3 , +.Xr inflateBackInit 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/inflateBackEnd.3 b/doc/zlib/inflateBackEnd.3 new file mode 100644 index 00000000..eeb88636 --- /dev/null +++ b/doc/zlib/inflateBackEnd.3 @@ -0,0 +1,43 @@ +.Dd January 15, 2017 +.Dt INFLATEBACKEND 3 +.Os +. +.Sh NAME +.Nm inflateBackEnd +.Nd free inflateBack stream +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn inflateBackEnd "z_streamp strm" +. +.Sh DESCRIPTION +All memory allocated by +.Xr inflateBackInit 3 +is freed. +. +.Sh RETURN VALUES +.Fn inflateBackEnd +returns +.Dv Z_OK +on success, +or +.Dv Z_STREAM_ERROR +if the stream state was inconsistent. +. +.Sh SEE ALSO +.Xr inflateBack 3 , +.Xr inflateBackInit 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/inflateBackInit.3 b/doc/zlib/inflateBackInit.3 new file mode 100644 index 00000000..483edda5 --- /dev/null +++ b/doc/zlib/inflateBackInit.3 @@ -0,0 +1,84 @@ +.Dd January 15, 2017 +.Dt INFLATEBACKINIT 3 +.Os +. +.Sh NAME +.Nm inflateBackInit +.Nd initialize inflateBack stream +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fo inflateBackInit +.Fa "z_streamp strm" +.Fa "int windowBits" +.Fa "unsigned char FAR *window" +.Fc +. +.Sh DESCRIPTION +Initialize the internal stream state +for decompression using +.Xr inflateBack 3 +calls. +The fields +.Fa zalloc , +.Fa zfree +and +.Fa opaque +in +.Fa strm +must be initialized before the call. +If +.Fa zalloc +and +.Fa zfree +are +.Dv Z_NULL , +then the default +library-derived memory allocation routines are used. +.Fa windowBits +is the base two logarithm of the window size, +in the range 8..15. +.Fa window +is a caller supplied buffer of that size. +Except for special applications +where it is assured that deflate +was used with small window sizes, +.Fa windowBits +must be 15 +and a 32K byte +.Fa window +must be supplied +to be able to decompress general deflate streams. +. +.Sh RETURN VALUES +.Fn inflateBackInit +will return +.Dv Z_OK +on success, +.Dv Z_STREAM_ERROR +if any of the parameters are invalid, +.Dv Z_MEM_ERROR +if the internal state could not be allocated, +or +.Dv Z_VERSION_ERROR +if the version of the library +does not match the version of the header file. +. +.Sh SEE ALSO +.Xr inflateBack 3 , +.Xr inflateBackEnd 3 , +.Xr inflateInit 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/inflateCopy.3 b/doc/zlib/inflateCopy.3 new file mode 100644 index 00000000..53b30edf --- /dev/null +++ b/doc/zlib/inflateCopy.3 @@ -0,0 +1,59 @@ +.Dd January 15, 2017 +.Dt INFLATECOPY 3 +.Os +. +.Sh NAME +.Nm inflateCopy +.Nd copy inflate stream +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn inflateCopy "z_streamp dest" "z_streamp source" +. +.Sh DESCRIPTION +Sets the destination stream +as a complete copy of the source stream. +. +.Pp +This function can be useful +when randomly accessing a large stream. +The first pass through the stream +can periodically record the inflate state, +allowing restarting inflate at those points +when randomly accessing the stream. +. +.Sh RETURN VALUES +.Fn inflateCopy +returns +.Dv Z_OK +if success, +.Dv Z_MEM_ERROR +if there was not enough memory, +.Dv Z_STREAM_ERROR +if the source stream state was inconsistent +.Po +such as +.Fa zalloc +being +.Dv Z_NULL +.Pc . +.Fa msg +is left unchanged +in both source and destination. +. +.Sh SEE ALSO +.Xr inflateInit 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/inflateEnd.3 b/doc/zlib/inflateEnd.3 new file mode 100644 index 00000000..9b18226b --- /dev/null +++ b/doc/zlib/inflateEnd.3 @@ -0,0 +1,44 @@ +.Dd January 15, 2017 +.Dt INFLATEEND 3 +.Os +. +.Sh NAME +.Nm inflateEnd +.Nd free inflate stream +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn inflateEnd "z_streamp strm" +. +.Sh DESCRIPTION +All dynamically allocated data structures +for this stream are feed. +This function discards any unprocessed input +and does not flush any pending output. +. +.Sh RETURN VALUES +.Fn inflateEnd +returns +.Dv Z_OK +if success, +or +.Dv Z_STREAM_ERROR +if the stream state was inconsistent. +. +.Sh SEE ALSO +.Xr inflate 3 , +.Xr inflateInit 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/inflateGetDictionary.3 b/doc/zlib/inflateGetDictionary.3 new file mode 100644 index 00000000..e70ee736 --- /dev/null +++ b/doc/zlib/inflateGetDictionary.3 @@ -0,0 +1,69 @@ +.Dd January 15, 2017 +.Dt INFLATEGETDICTIONARY 3 +.Os +. +.Sh NAME +.Nm inflateGetDictionary +.Nd inflate sliding dictionary +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fo inflateGetDictionary +.Fa "z_streamp strm" +.Fa "Bytef *dictionary" +.Fa "uInt *dictLength" +.Fc +. +.Sh DESCRIPTION +Returns the sliding dictionary +being maintained by +.Xr inflate 3 . +.Fa dictLength +is set to the number of bytes +in the dictionary, +and that many bytes are copied to +.Fa dictionary . +.Fa dictionary +must have enough space, +where 32768 bytes is always enough. +If +.Fn inflateGetDictionary +is called with +.Fa dictionary +equal to +.Dv Z_NULL , +then only the dictionary length is returned, +and nothing is copied. +Similarly, +if +.Fa dictLength +is +.Dv Z_NULL , +then it is not set. +. +.Sh RETURN VALUES +.Fn inflateGetDictionary +returns +.Dv Z_OK +on success, +or +.Dv Z_STREAM_ERROR +if the stream state is inconsistent. +. +.Sh SEE ALSO +.Xr deflateSetDictionary 3 , +.Xr inflateSetDictionary 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/inflateGetHeader.3 b/doc/zlib/inflateGetHeader.3 new file mode 100644 index 00000000..f77670f2 --- /dev/null +++ b/doc/zlib/inflateGetHeader.3 @@ -0,0 +1,170 @@ +.Dd January 15, 2017 +.Dt INFLATEGETHEADER 3 +.Os +. +.Sh NAME +.Nm inflateGetHeader +.Nd get gzip header +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn inflateGetHeader "z_streamp strm" "gz_headerp head" +. +.Sh DESCRIPTION +.Fn inflateGetHeader +requests that gzip header information +be stored in the provided +.Vt gz_header +structure. +.Fn inflateGetHeader +may be called after +.Xr inflateInit2 3 +or +.Xr inflateReset 3 , +and before the first call of +.Xr inflate 3 . +As +.Xr inflate 3 +processes the gzip stream, +.Fa head->done +is zero until the header is completed, +at which time +.Fa head->done +is set to one. +If a zlib stream is being decoded, +then +.Fa head->done +is set to -1 to indicate that +there will be no gzip header information forthcoming. +Note that +.Dv Z_BLOCK +or +.Dv Z_TREES +can be used to force +.Xr inflate 3 +to return immediately after +header processing is complete +and before any actual data is decompressed. +. +.Pp +The +.Fa text , +.Fa time , +.Fa xflags , +and +.Fa os +fields are filled in with the gzip header contents. +.Fa hcrc +is set to true if there is a header CRC. +.Po +The header CRC was valid if +.Fa done +is set to one. +.Pc \& +If +.Fa extra +is not +.Dv Z_NULL , +then +.Fa extra_max +contains the maximum number of bytes to write to +.Fa extra . +Once +.Fa done +is true, +.Fa extra_len +contains the actual extra field length, +and +.Fa extra +contains the extra field, +or that field truncated if +.Fa extra_max +is less than +.Fa extra_len . +If +.Fa name +is not +.Dv Z_NULL , +then up to +.Fa name_max +characters are written there, +terminated with a zero +unless the length is greater than +.Fa name_max . +If +.Fa comment +is not +.Dv Z_NULL , +then up to +.Fa comm_max +characters are written there, +terminated with a zero +unless the length is greater than +.Fa comm_max . +When any of +.Fa extra , +.Fa name , +or +.Fa comment +are not +.Dv Z_NULL +and the respective field +is not present in the header, +then that field is set to +.Dv Z_NULL +to signal its absence. +This allows the use of +.Xr deflateSetHeader 3 +with the returned structure +to duplicate the header. +However if those fields are set to allocated memory, +then the application will need to +save those pointers elsewhere +so that they can be eventually feed. +. +.Pp +If +.Fn inflateGetHeader +is not used, +then the header information is simply discarded. +The header is always checked for validity, +including the header CRC if present. +.Xr inflateReset 3 +will reset the process to discard the header information. +The application would need to call +.Fn inflateGetHeader +again to retrieve the header from the next gzip stream. +. +.Pp +The +.Vt gz_headerp +type is documented in +.Xr deflateSetHeader 3 . +. +.Sh RETURN VALUES +.Fn inflateGetHeader +returns +.Dv Z_OK +if success, +or +.Dv Z_STREAM_ERROR +if the source stream state was inconsistent. +. +.Sh SEE ALSO +.Xr gzip 1 , +.Xr deflateSetHeader 3 , +.Xr inflateInit2 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/inflateInit.3 b/doc/zlib/inflateInit.3 new file mode 100644 index 00000000..186b058a --- /dev/null +++ b/doc/zlib/inflateInit.3 @@ -0,0 +1,101 @@ +.Dd January 15, 2017 +.Dt INFLATEINIT 3 +.Os +. +.Sh NAME +.Nm inflateInit +.Nd initialize inflate stream +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn inflateInit "z_streamp strm" +. +.Sh DESCRIPTION +Initializes the internal stream state for decompression. +The fields +.Fa next_in , +.Fa avail_in , +.Fa zalloc , +.Fa zfree +and +.Fa opaque +must be initialized before by the caller. +In the current version of +.Fn inflateInit , +the provided input is not read or consumed. +The allocation of a sliding window +will be deferred to the first call of +.Xr inflate 3 +(if the decompression does not complete on the first call). +If +.Fa zalloc +and +.Fa zfree +are set to +.Dv Z_NULL , +.Fn inflateInit +updates them to use default allocation functions. +. +.Pp +.Fn inflateInit +does not perform any decompression. +Actual decompression will be done by +.Xr inflate 3 . +So +.Fa next_in , +.Fa avail_in , +.Fa next_out +and +.Fa avail_out +are unused and unchanged. +The current implementation of +.Fn inflateInit +does not process any header information \(em +that is deferred until +.Xr inflate 3 +is called. +. +.Pp +The +.Vt z_streamp +type is documented in +.Xr deflateInit 3 . +. +.Sh RETURN VALUES +.Fn inflateInit +returns +.Dv Z_OK +if success, +.Dv Z_MEM_ERROR +if there was not enough memory, +.Dv Z_VERSION_ERROR +if the zlib library version +is incompatible with the version assumed by the caller, +or +.Dv Z_STREAM_ERROR +if the parameters are invalid, +such as a null pointer to the structure. +.Fa msg +is set to null if there is no error message. +. +.Sh SEE ALSO +.Xr inflate 3 , +.Xr inflateBackInit 3 , +.Xr inflateCopy 3 , +.Xr inflateEnd 3 , +.Xr inflateInit2 3 , +.Xr inflateSetDictionary 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/inflateInit2.3 b/doc/zlib/inflateInit2.3 new file mode 100644 index 00000000..a630f12a --- /dev/null +++ b/doc/zlib/inflateInit2.3 @@ -0,0 +1,181 @@ +.Dd January 15, 2017 +.Dt INFLATEINIT2 3 +.Os +. +.Sh NAME +.Nm inflateInit2 +.Nd inflate compression options +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn inflateInit2 "z_streamp strm" "int windowBits" +. +.Sh DESCRIPTION +This is another version of +.Xr inflateInit 3 +with an extra parameter. +The fields +.Fa next_in , +.Fa avail_in , +.Fa zalloc , +.Fa zfree +and +.Fa opaque +must be initialized before by the caller. +. +.Pp +The +.Fa windowBits +parameter is the base two logarithm +of the maximum window size +(the size of the history buffer). +It should be in the range 8..15 +for this version of the library. +The default value is 15 if +.Xr inflateInit 3 +is used instead. +.Fa windowBits +must be greater than or equal to the +.Fa windowBits +value provided to +.Xr deflateInit2 3 +while compressing, +or it must be equal to 15 if +.Xr deflateInit2 3 +was not used. +If a compressed stream with a larger window size +is given as input, +.Xr inflate 3 +will return with the error code +.Dv Z_DATA_ERROR +instead of trying to allocate a larger window. +. +.Pp +.Fa windowBits +can also be zero +to request that +.Xr inflate 3 +use the window size +in the zlib header +of the compressed stream. +. +.Pp +.Fa windowBits +can also be -8..-15 +for raw inflate. +In this case, +.Fa -windowBits +determines the window size. +.Xr inflate 3 +will then process raw deflate data, +not looking for a zlib or gzip header, +not generating a check value, +and not looking for any check values +for comparison at the end of the stream. +This is for use with other formats +that use the deflate compressed data format +such as zip. +Those formats provide their own check values. +If a custom format is developed +using the raw deflate format for compressed data, +it is recommended that a check value +such as an Adler-32 or a CRC-32 +be applied to the uncompressed data +as is done in the zlib, gzip and zip formats. +For most applications, +the zlib format should be used as is. +Note that comments above on the use in +.Xr deflateInit2 3 +applies to the magnitude of +.Fa windowBits . +. +.Pp +.Fa windowBits +can also be greater than 15 +for optional gzip decoding. +Add 32 to +.Fa windowBits +to enable zlib and gzip decoding +with automatic header detection, +or add 16 to decode only the gzip format +.Po +the zlib format will return a +.Dv Z_DATA_ERROR +.Pc . +If a gzip stream is being decoded, +.Fa strm->adler +is a CRC-32 instead of an Adler-32. +Unlike the +.Xr gunzip 1 +utility and +.Xr gzread 3 , +.Xr inflate 3 +will not automatically decode +concatenated gzip streams. +.Xr inflate 3 +will return +.Dv Z_STREAM_END +at the end of the gzip stream. +The state would need to be reset +to continue decoding a subsequent gzip stream. +. +.Pp +.Fn inflateInit2 +does not perform any decompression +apart from possibly reading the zlib header if present: +actual decompression will be done by +.Xr inflate 3 . +.Po +So +.Fa next_in +and +.Fa avail_in +may be modified, +but +.Fa next_out +and +.Fa avail_out +are unused and unchanged. +.Pc \& +The current implementation of +.Fn inflateInit2 +does not process any header information \(em +that is deferred until +.Xr inflate 3 +is called. +. +.Sh RETURN VALUES +.Fn inflateInit2 +returns +.Dv Z_OK +if success, +.Dv Z_MEM_ERROR +if there was not enough memory, +.Dv Z_VERSION_ERROR +if the zlib library version +is incompatible with the version assumed by the caller, +or +.Dv Z_STREAM_ERROR +if the parameters are invalid, +such as a null pointer to the structure. +.Fa msg +is set to null if there is no error message. +. +.Sh SEE ALSO +.Xr deflateInit2 3 , +.Xr inflateInit 3 , +.Xr inflatePrime 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/inflateMark.3 b/doc/zlib/inflateMark.3 new file mode 100644 index 00000000..2d15993d --- /dev/null +++ b/doc/zlib/inflateMark.3 @@ -0,0 +1,88 @@ +.Dd January 15, 2017 +.Dt INFLATEMARK 3 +.Os +. +.Sh NAME +.Nm inflateMark +.Nd mark location for random access +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft long +.Fn inflateMark "z_streamp strm" +. +.Sh DESCRIPTION +This function returns two values, +one in the lower 16 bits of the return value, +and the other in the remaining upper bits, +obtained by shifting the return value down 16 bits. +If the upper value is -1 +and the lower value is zero, +then +.Xr inflate 3 +is currently decoding information outside of a block. +If the upper value is -1 +and the lower value is non-zero, +then +.Xr inflate 3 +is in the middle of a stored block, +with the lower value equaling +the number of bytes from the input remaining to copy. +If the upper value is not -1, +then it is the number of bits +back from the current bit position +in the input of the code +(literal of length/distance pair) +currently being processed. +In that case the lower value +is the number of bytes +already emitted for that code. +. +.Pp +A code is being processed if +.Xr inflate 3 +is waiting for more input to complete +decoding of the code, +or if it has completed decoding +but is waiting for more output space +to write the literal or match data. +. +.Pp +.Fn inflateMark +is used to mark locations in the input data +for random access, +which may be at bit positions, +and to note those cases where +the output of a code may span boundaries +of random access blocks. +The current location in the input stream +can be determined from +.Fa avail_in +and +.Fa data_type +as noted in the description for the +.Dv Z_BLOCK +.Fa flush +parameter for +.Xr inflate 3 . +. +.Sh RETURN VALUES +.Fn inflateMark +returns the value noted above, +or -65536 if the provided source stream state was inconsistent. +. +.Sh SEE ALSO +.Xr inflate 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/inflatePrime.3 b/doc/zlib/inflatePrime.3 new file mode 100644 index 00000000..c89dc2c5 --- /dev/null +++ b/doc/zlib/inflatePrime.3 @@ -0,0 +1,73 @@ +.Dd January 15, 2017 +.Dt INFLATEPRIME 3 +.Os +. +.Sh NAME +.Nm inflatePrime +.Nd insert bits in inflate stream +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn inflatePrime "z_streamp strm" "int bits" "int value" +. +.Sh DESCRIPTION +This function inserts bits +in the inflate input stream. +The intent is that this function +is used to start inflating +at a bit position +in the middle of a byte. +The provided bits will be used +before any bytes are used from +.Fa next_in . +This function should only be used with raw inflate, +and should be used before the first +.Xr inflate 3 +call after +.Xr inflateInit2 3 +or +.Xr inflateReset 3 . +.Fa bits +must be less than or equal to 16, +and that many of the least significant bits of +.Fa value +will be inserted in the input. +. +.Pp +If +.Fa bits +is negative, +then the input stream bit buffer is emptied. +Then +.Fn inflatePrime +can be called again +to put bits in the buffer. +This is used to clear out bits leftover +after feeding inflate a block description +prior to feeding inflate codes. +. +.Sh RETURN VALUES +.Fn inflatePrime +returns +.Dv Z_OK +if success, +or +.Dv Z_STREAM_ERROR +if the source stream state was inconsistent. +. +.Sh SEE ALSO +.Xr inflateInit2 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/inflateReset.3 b/doc/zlib/inflateReset.3 new file mode 100644 index 00000000..a8d2e219 --- /dev/null +++ b/doc/zlib/inflateReset.3 @@ -0,0 +1,81 @@ +.Dd January 15, 2017 +.Dt INFLATERESET 3 +.Os +. +.Sh NAME +.Nm inflateReset , +.Nm inflateReset2 +.Nd reset inflate stream +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn inflateReset "z_streamp strm" +.Ft int +.Fn inflateReset2 "z_streamp strm" "int windowBits" +. +.Sh DESCRIPTION +This function is equivalent to +.Xr inflateEnd 3 +followed by +.Xr inflateInit 3 , +but does not free and reallocate +the internal decompression state. +The stream will keep attributes +that may have been set by +.Xr inflateInit2 3 . +. +.Pp +.Fn inflateReset2 +is the same as +.Fn inflateReset , +but it also permits changing +the wrap and window size requests. +The +.Fa windowBits +parameter is interpreted the same as it is for +.Xr inflateInit2 3 . +If the window size is changed, +then the memory allocated for the window is freed, +and the window will be reallocated by +.Xr inflate 3 +if needed. +. +.Sh RETURN VALUES +.Fn inflateReset +and +.Fn inflateReset2 +return +.Dv Z_OK +if success, +or +.Dv Z_STREAM_ERROR +if the source stream state was inconsistent +.Po +such as +.Fa zalloc +or +.Fa state +being +.Dv Z_NULL +.Pc , +or if the +.Fa windowBits +parameter is invalid. +. +.Sh SEE ALSO +.Xr inflateEnd 3 , +.Xr inflateInit 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/inflateSetDictionary.3 b/doc/zlib/inflateSetDictionary.3 new file mode 100644 index 00000000..0e3c60c7 --- /dev/null +++ b/doc/zlib/inflateSetDictionary.3 @@ -0,0 +1,85 @@ +.Dd January 15, 2017 +.Dt INFLATESETDICTIONARY 3 +.Os +. +.Sh NAME +.Nm inflateSetDictionary +.Nd initialize decompression dictionary +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fo inflateSetDictionary +.Fa "z_streamp strm" +.Fa "const Bytef *dictionary" +.Fa "uInt dictLength" +.Fc +. +.Sh DESCRIPTION +Initializes the decompression dictionary +from the given uncompressed byte sequence. +This function must be called +immediately after a call of +.Xr inflate 3 , +if that call returned +.Dv Z_NEED_DICT . +The dictionary chosen by the compressor +can be determined from the Adler-32 value +returned by that call of +.Xr inflate 3 . +The compressor and decompressor +must use exactly the same dictionary +.Po +see +.Xr deflateSetDictionary 3 +.Pc . +For raw inflate, +this function can be called at any time +to set the dictionary. +If the provided dictionary +is smaller than the window +and there is already data in the window, +then the provided dictionary +will amend what's there. +The application must insure that the dictionary +that was used for compression is provided. +. +.Pp +.Fn inflateSetDictionary +does not perform any decompression: +this will be done by subsequent calls of +.Xr inflate 3 . +. +.Sh RETURN VALUES +.Fn inflateSetDictionary +returns +.Dv Z_OK +if success, +.Dv Z_STREAM_ERROR +if a parameter is invalid +.Po +e.g. dictionary being +.Dv Z_NULL +.Pc +or the stream state is inconsistent, +.Dv Z_DATA_ERROR +if the given dictionary +doesn't match the expected one +(incorrect Adler-32 value). +. +.Sh SEE ALSO +.Xr deflateGetDictionary 3 , +.Xr inflateGetDictionary 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/inflateSync.3 b/doc/zlib/inflateSync.3 new file mode 100644 index 00000000..35264ddd --- /dev/null +++ b/doc/zlib/inflateSync.3 @@ -0,0 +1,72 @@ +.Dd January 15, 2017 +.Dt INFLATESYNC 3 +.Os +. +.Sh NAME +.Nm inflateSync +.Nd skip invalid data +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn inflateSync "z_streamp strm" +. +.Sh DESCRIPTION +Skips invalid compressed data +until a possible full flush point +.Po +see +.Xr deflate 3 +for the description of +.Dv Z_FULL_FLUSH +.Pc +can be found, +or until all available input is skipped. +No output is provided. +. +.Pp +.Fn inflateSync +searches for a 00 00 FF FF pattern +in the compressed data. +All full flush points have this pattern, +but not all occurrences of this pattern +are full flush points. +. +.Sh RETURN VALUES +.Fn inflateSync +returns +.Dv Z_OK +if a possible full flush point has been found, +.Dv Z_BUF_ERROR +if no more input was provided, +.Dv Z_DATA_ERROR +if no flush point has been found, +or +.Dv Z_STREAM_ERROR +if the stream structure was inconsistent. +In the success case, +the application may save the current value of +.Fa total_in +which indicates where valid compressed data was found. +In the error case, +the application may repeatedly call +.Fn inflateSync , +providing more input each time, +until success or the end of the input data. +. +.Sh SEE ALSO +.Xr deflate 3 , +.Xr inflate 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/uncompress.3 b/doc/zlib/uncompress.3 new file mode 100644 index 00000000..d951da9b --- /dev/null +++ b/doc/zlib/uncompress.3 @@ -0,0 +1,92 @@ +.Dd January 15, 2017 +.Dt UNCOMPRESS 3 +.Os +. +.Sh NAME +.Nm uncompress , +.Nm uncompress2 +.Nd decompress source buffer into destination buffer +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +. +.Ft int +.Fo uncompress +.Fa "Bytef *dest" +.Fa "uLongf *destLen" +.Fa "const Bytef *source" +.Fa "uLong sourceLen" +.Fc +. +.Ft int +.Fo uncompress2 +.Fa "Bytef *dest" +.Fa "uLongf *destLen" +.Fa "const Bytef *source" +.Fa "uLong *sourceLen" +.Fc +. +.Sh DESCRIPTION +Decompresses the source buffer into the destination buffer. +.Fa sourceLen +is the byte length of the source buffer. +Upon entry, +.Fa destLen +is the total size of the destination buffer, +which must be large enough to hold the entire uncompressed data. +.Po +The size of the uncompressed data +must have been saved previously by the compressor +and transmitted to the decompressor +by some mechanism outside the scope of this compression library. +.Pc \& +Upon exit, +.Fa destLen +is the actual size of the uncompressed data. +. +.Pp +.Fn uncompress2 +is the same as +.Fn uncompress , +except that +.Fa sourceLen +is a pointer, +where the length of the source is +.Fa *sourceLen . +On return, +.Fa *sourceLen +is the number of source bytes consumed. +. +.Sh RETURN VALUES +.Fn uncompress +returns +.Dv Z_OK +if success, +.Dv Z_MEM_ERROR +if there was not enough memory, +.Dv Z_BUF_ERROR +if there was not enough room in the output buffer, +or +.Dv Z_DATA_ERROR +if the input data was corrupted or incomplete. +In the case where there is not enough room, +.Fn uncompress +will fill the output buffer +with the uncompressed data up to that point. +. +.Sh SEE ALSO +.Xr compress 3 , +.Xr inflate 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/zlibCompileFlags.3 b/doc/zlib/zlibCompileFlags.3 new file mode 100644 index 00000000..465195c2 --- /dev/null +++ b/doc/zlib/zlibCompileFlags.3 @@ -0,0 +1,163 @@ +.Dd January 15, 2017 +.Dt ZLIBCOMPILEFLAGS 3 +.Os +. +.Sh NAME +.Nm zlibCompileFlags +.Nd zlib compile-time options +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft uLong +.Fn zlibCompileFlags void +. +.Sh DESCRIPTION +Return flags indicating compile-time options. +. +.Ss Type sizes +Two bits each, +00 = 16 bits, +01 = 32 bits, +10 = 64 bits, +11 = other. +. +.Pp +.Bl -tag -width Ds -compact +.It 1.0 +size of +.Vt uInt +.It 3.2 +size of +.Vt uLong +.It 5.4 +size of +.Vt voidpf +(pointer) +.It 7.6 +size of +.Vt z_off_t +.El +. +.Ss Compiler, assembler, and debug options +.Bl -tag -width Ds -compact +.It 8 +.Dv ZLIB_DEBUG +.It 9 +.Dv ASMV +or +.Dv ASMINF +\(em +use ASM code +.It 10 +.Dv ZLIB_WINAPI +\(em +exported functions use the WINAPI calling convention +.It 11 +0 (reserved) +.El +. +.Ss One-time table building +Smaller code, +but not thread-safe if true. +. +.Pp +.Bl -tag -width Ds -compact +.It 12 +.Dv BUILDFIXED +\(em +build static block decoding tables when needed +.It 13 +.Dv DYNAMIC_CRC_TABLE +\(em +build CRC calculation tables when needed +.It 14,15 +0 (reserved) +.El +. +.Ss Library content +Indicates missing functionality. +. +.Pp +.Bl -tag -width Ds -compact +.It 16 +.Dv NO_GZCOMPRESS +\(em +gz* functions cannot compress +(to avoid linking deflate code when not needed) +.It 17 +.Dv NO_GZIP +\(em +.Xr deflate 3 +can't write gzip streams, +and +.Xr inflate 3 +can't detect and decode gzip streams +(to avoid linking crc code) +.It 18-19 +0 (reserved) +.El +. +.Ss Operation variations +Changes in library functionality. +. +.Pp +.Bl -tag -width Ds -compact +.It 20 +.Dv PKZIP_BUG_WORKAROUND +\(em +slightly more permissive +.Xr inflate 3 +.It 21 +.Dv FASTEST +\(em +deflate algorithm with only one, +lowest compression level +.It 22,23 +0 (reserved) +.El +. +.Ss sprintf variant used by gzprintf +Zero is best. +. +.Pp +.Bl -tag -width Ds -compact +.It 24 +0 = vs*, +1 = s* +\(em +1 means limited to 20 arguments after the format +.It 25 +0 = *nprintf, +1 = *printf +\(em +1 means +.Xr gzprintf 3 +not secure! +.It 26 +0 = returns value, +1 = void +\(em +1 means inferred string length returned +.El +. +.Ss Remainder +.Bl -tag -width Ds -compact +.It 27-31 +0 (reserved) +.El +. +.Sh SEE ALSO +.Xr zlibVersion 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/doc/zlib/zlibVersion.3 b/doc/zlib/zlibVersion.3 new file mode 100644 index 00000000..35a9854b --- /dev/null +++ b/doc/zlib/zlibVersion.3 @@ -0,0 +1,45 @@ +.Dd January 15, 2017 +.Dt ZLIBVERSION 3 +.Os +. +.Sh NAME +.Nm zlibVersion +.Nd check zlib version +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Fd #define ZLIB_VERSION \(dq1.2.11\(dq +.Ft "const char *" +.Fn zlibVersion void +. +.Sh DESCRIPTION +The application can compare +.Fn zlibVersion +and +.Dv ZLIB_VERSION +for consistency. +If the first character differs, +the library code actually used +is not compatible with the +.In zlib.h +header file used by the application. +This check is automatically made by +.Xr deflateInit 3 +and +.Xr inflateInit 3 . +. +.Sh SEE ALSO +.Xr zlibCompileFlags 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu diff --git a/etc/CodeQWERTY.bundle/Contents/Info.plist b/etc/CodeQWERTY.bundle/Contents/Info.plist new file mode 100644 index 00000000..f78351e8 --- /dev/null +++ b/etc/CodeQWERTY.bundle/Contents/Info.plist @@ -0,0 +1,19 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> +<plist version="1.0"> + <dict> + <key>CFBundleIdentifier</key> + <string>agency.causal.keyboardlayout.code</string> + <key>CFBundleName</key> + <string>Code QWERTY</string> + <key>CFBundleVersion</key> + <string>1.0</string> + <key>KLInfo_Code QWERTY</key> + <dict> + <key>TISInputSourceID</key> + <string>agency.causal.keyboardlayout.code.qwerty</string> + <key>TISIntendedLanguage</key> + <string>en-CA</string> + </dict> + </dict> +</plist> diff --git a/etc/CodeQWERTY.bundle/Contents/Resources/CodeQWERTY.keylayout b/etc/CodeQWERTY.bundle/Contents/Resources/CodeQWERTY.keylayout new file mode 100644 index 00000000..393a86dd --- /dev/null +++ b/etc/CodeQWERTY.bundle/Contents/Resources/CodeQWERTY.keylayout @@ -0,0 +1,1178 @@ +<?xml version="1.1" encoding="UTF-8"?> +<!DOCTYPE keyboard PUBLIC "" "file://localhost/System/Library/DTDs/KeyboardLayout.dtd"> +<keyboard group="0" id="5069" maxout="1" name="Code QWERTY"> + <layouts> + <layout first="0" last="17" mapSet="16c" modifiers="f4"/> + <layout first="18" last="18" mapSet="994" modifiers="f4"/> + <layout first="21" last="23" mapSet="994" modifiers="f4"/> + <layout first="30" last="30" mapSet="994" modifiers="f4"/> + <layout first="194" last="194" mapSet="994" modifiers="f4"/> + <layout first="197" last="197" mapSet="994" modifiers="f4"/> + <layout first="200" last="201" mapSet="994" modifiers="f4"/> + <layout first="206" last="207" mapSet="994" modifiers="f4"/> + </layouts> + <modifierMap defaultIndex="7" id="f4"> + <keyMapSelect mapIndex="8"> + <modifier keys="command?"/> + </keyMapSelect> + <keyMapSelect mapIndex="0"> + <modifier keys="anyShift? caps? command"/> + </keyMapSelect> + <keyMapSelect mapIndex="9"> + <modifier keys="anyShift caps?"/> + </keyMapSelect> + <keyMapSelect mapIndex="2"> + <modifier keys="caps"/> + </keyMapSelect> + <keyMapSelect mapIndex="3"> + <modifier keys="anyOption"/> + </keyMapSelect> + <keyMapSelect mapIndex="4"> + <modifier keys="anyShift caps? anyOption command?"/> + </keyMapSelect> + <keyMapSelect mapIndex="5"> + <modifier keys="caps anyOption"/> + </keyMapSelect> + <keyMapSelect mapIndex="6"> + <modifier keys="caps? anyOption command"/> + </keyMapSelect> + <keyMapSelect mapIndex="7"> + <modifier keys="anyShift caps? option? command? control"/> + <modifier keys="shift? caps? anyOption command? control"/> + <modifier keys="caps? anyOption? command? control"/> + </keyMapSelect> + </modifierMap> + <keyMapSet id="16c"> + <keyMap index="0"> + <key action="13" code="0"/> + <key code="1" output="s"/> + <key code="2" output="d"/> + <key code="3" output="f"/> + <key code="4" output="h"/> + <key code="5" output="g"/> + <key code="6" output="z"/> + <key code="7" output="x"/> + <key code="8" output="c"/> + <key code="9" output="v"/> + <key code="10" output="§"/> + <key code="11" output="b"/> + <key code="12" output="q"/> + <key code="13" output="w"/> + <key action="14" code="14"/> + <key code="15" output="r"/> + <key action="19" code="16"/> + <key code="17" output="t"/> + <key code="18" output="1"/> + <key code="19" output="2"/> + <key code="20" output="3"/> + <key code="21" output="4"/> + <key code="22" output="6"/> + <key code="23" output="5"/> + <key code="24" output="="/> + <key code="25" output="9"/> + <key code="26" output="7"/> + <key code="27" output="-"/> + <key code="28" output="8"/> + <key code="29" output="0"/> + <key code="30" output="]"/> + <key action="17" code="31"/> + <key action="18" code="32"/> + <key code="33" output="["/> + <key action="15" code="34"/> + <key code="35" output="p"/> + <key code="36" output="
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+</dict> +</plist> diff --git a/etc/Go-Mono-Bold-Italic.ttf b/etc/Go-Mono-Bold-Italic.ttf new file mode 100644 index 00000000..c138a9e1 --- /dev/null +++ b/etc/Go-Mono-Bold-Italic.ttf Binary files differdiff --git a/etc/Go-Mono-Bold.ttf b/etc/Go-Mono-Bold.ttf new file mode 100644 index 00000000..551da07f --- /dev/null +++ b/etc/Go-Mono-Bold.ttf Binary files differdiff --git a/etc/Go-Mono-Italic.ttf b/etc/Go-Mono-Italic.ttf new file mode 100644 index 00000000..22d4390e --- /dev/null +++ b/etc/Go-Mono-Italic.ttf Binary files differdiff --git a/etc/Go-Mono.ttf b/etc/Go-Mono.ttf new file mode 100644 index 00000000..71e30123 --- /dev/null +++ b/etc/Go-Mono.ttf Binary files differdiff --git a/etc/README.Go-Mono b/etc/README.Go-Mono new file mode 100644 index 00000000..7043c362 --- /dev/null +++ b/etc/README.Go-Mono @@ -0,0 +1,36 @@ +These fonts were created by the Bigelow & Holmes foundry specifically for the +Go project. See https://blog.golang.org/go-fonts for details. + +They are licensed under the same open source license as the rest of the Go +project's software: + +Copyright (c) 2016 Bigelow & Holmes Inc.. All rights reserved. + +Distribution of this font is governed by the following license. If you do not +agree to this license, including the disclaimer, do not distribute or modify +this font. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + * Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + + * Neither the name of Google Inc. nor the names of its contributors may be + used to endorse or promote products derived from this software without + specific prior written permission. + +DISCLAIMER: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/etc/code.map b/etc/code.map new file mode 100644 index 00000000..a3749b8d --- /dev/null +++ b/etc/code.map @@ -0,0 +1,20 @@ +include "/usr/share/kbd/keymaps/i386/qwerty/us.map.gz" + +keycode 2 = exclam one +keycode 3 = at two +keycode 4 = numbersign three +keycode 5 = dollar four +keycode 6 = percent five +keycode 7 = asciicircum six +keycode 8 = ampersand seven +keycode 9 = asterisk eight +keycode 10 = parenleft nine +keycode 11 = parenright zero +keycode 12 = underscore minus +keycode 26 = braceleft bracketleft +keycode 27 = braceright bracketright +keycode 43 = bar backslash +keycode 58 = Escape + +keycode 100 = Compose +keycode 125 = Escape diff --git a/etc/psf/.gitignore b/etc/psf/.gitignore new file mode 100644 index 00000000..446e6b46 --- /dev/null +++ b/etc/psf/.gitignore @@ -0,0 +1,2 @@ +*.png +*.psfu diff --git a/etc/psf/Makefile b/etc/psf/Makefile new file mode 100644 index 00000000..e92178cd --- /dev/null +++ b/etc/psf/Makefile @@ -0,0 +1,24 @@ +TABLE = default.u + +FONTS += sans6x8.psfu +FONTS += sans6x10.psfu +FONTS += sans6x12.psfu + +PNGS = $(FONTS:psfu=png) + +all: $(FONTS) + +png: $(PNGS) + +$(FONTS): $(TABLE) + +.SUFFIXES: .psf .psfu .png + +.psf.psfu: + psfaddtable $< $(TABLE) $@ + +.psf.png: + psf2png $< > $@ + +clean: + rm -f $(FONTS) $(PNGS) diff --git a/etc/psf/default.u b/etc/psf/default.u new file mode 100644 index 00000000..790ad92b --- /dev/null +++ b/etc/psf/default.u @@ -0,0 +1,259 @@ +# +# Character table extracted from font default8x16.psfu +# +0x000 U+2008 +0x001 U+263a +0x002 U+263b +0x003 U+2665 +0x004 U+2666 +0x005 U+2663 +0x006 U+2660 +0x007 U+2022 +0x008 U+25d8 +0x009 U+25cb +0x00a U+25d9 +0x00b U+2642 +0x00c U+2640 +0x00d U+266a +0x00e U+266b U+266c +0x00f U+263c +0x010 U+25b6 U+25ba +0x011 U+25c0 U+25c4 +0x012 U+2195 +0x013 U+203c +0x014 U+00b6 +0x015 U+00a7 +0x016 U+25ac +0x017 U+21a8 +0x018 U+2191 +0x019 U+2193 +0x01a U+2192 +0x01b U+2190 +0x01c U+221f U+2319 +0x01d U+2194 +0x01e U+25b2 +0x01f U+25bc +0x020 U+0020 U+00a0 U+2000 U+2001 U+2002 U+2003 U+2004 U+2005 U+2006 U+2007 U+2008 U+2009 U+200a U+202f +0x021 U+0021 +0x022 U+0022 +0x023 U+0023 +0x024 U+0024 +0x025 U+0025 +0x026 U+0026 +0x027 U+0027 +0x028 U+0028 +0x029 U+0029 +0x02a U+002a +0x02b U+002b +0x02c U+002c +0x02d U+002d +0x02e U+002e +0x02f U+002f +0x030 U+0030 +0x031 U+0031 +0x032 U+0032 +0x033 U+0033 +0x034 U+0034 +0x035 U+0035 +0x036 U+0036 +0x037 U+0037 +0x038 U+0038 +0x039 U+0039 +0x03a U+003a +0x03b U+003b +0x03c U+003c +0x03d U+003d +0x03e U+003e +0x03f U+003f +0x040 U+0040 +0x041 U+0041 +0x042 U+0042 +0x043 U+0043 +0x044 U+0044 +0x045 U+0045 +0x046 U+0046 +0x047 U+0047 +0x048 U+0048 +0x049 U+0049 +0x04a U+004a +0x04b U+004b +0x04c U+004c +0x04d U+004d +0x04e U+004e +0x04f U+004f +0x050 U+0050 +0x051 U+0051 +0x052 U+0052 +0x053 U+0053 +0x054 U+0054 +0x055 U+0055 +0x056 U+0056 +0x057 U+0057 +0x058 U+0058 +0x059 U+0059 +0x05a U+005a +0x05b U+005b +0x05c U+005c +0x05d U+005d +0x05e U+005e +0x05f U+005f +0x060 U+0060 +0x061 U+0061 +0x062 U+0062 +0x063 U+0063 +0x064 U+0064 +0x065 U+0065 +0x066 U+0066 +0x067 U+0067 +0x068 U+0068 +0x069 U+0069 +0x06a U+006a +0x06b U+006b +0x06c U+006c +0x06d U+006d +0x06e U+006e +0x06f U+006f +0x070 U+0070 +0x071 U+0071 +0x072 U+0072 +0x073 U+0073 +0x074 U+0074 +0x075 U+0075 +0x076 U+0076 +0x077 U+0077 +0x078 U+0078 +0x079 U+0079 +0x07a U+007a +0x07b U+007b +0x07c U+007c +0x07d U+007d +0x07e U+007e +0x07f U+2302 +0x080 U+00c7 +0x081 U+00fc +0x082 U+00e9 +0x083 U+00e2 +0x084 U+00e4 +0x085 U+00e0 +0x086 U+00e5 +0x087 U+00e7 +0x088 U+00ea +0x089 U+00eb +0x08a U+00e8 +0x08b U+00ef +0x08c U+00ee +0x08d U+00ec +0x08e U+00c4 +0x08f U+00c5 U+212b +0x090 U+00c9 +0x091 U+00e6 +0x092 U+00c6 +0x093 U+00f4 +0x094 U+00f6 +0x095 U+00f2 +0x096 U+00fb +0x097 U+00f9 +0x098 U+00ff +0x099 U+00d6 +0x09a U+00dc +0x09b U+00a2 +0x09c U+00a3 +0x09d U+00a5 +0x09e U+20a7 +0x09f U+0192 +0x0a0 U+00e1 +0x0a1 U+00ed +0x0a2 U+00f3 +0x0a3 U+00fa +0x0a4 U+00f1 +0x0a5 U+00d1 +0x0a6 U+00aa +0x0a7 U+00ba +0x0a8 U+00bf +0x0a9 U+2310 +0x0aa U+00ac +0x0ab U+00bd +0x0ac U+00bc +0x0ad U+00a1 +0x0ae U+00ab +0x0af U+00bb +0x0b0 U+2591 +0x0b1 U+2592 +0x0b2 U+2593 +0x0b3 U+2502 +0x0b4 U+2524 +0x0b5 U+2561 +0x0b6 U+2562 +0x0b7 U+2556 +0x0b8 U+2555 +0x0b9 U+2563 +0x0ba U+2551 +0x0bb U+2557 +0x0bc U+255d +0x0bd U+255c +0x0be U+255b +0x0bf U+2510 +0x0c0 U+2514 +0x0c1 U+2534 +0x0c2 U+252c +0x0c3 U+251c +0x0c4 U+2500 +0x0c5 U+253c +0x0c6 U+255e +0x0c7 U+255f +0x0c8 U+255a +0x0c9 U+2554 +0x0ca U+2569 +0x0cb U+2566 +0x0cc U+2560 +0x0cd U+2550 +0x0ce U+256c +0x0cf U+2567 +0x0d0 U+2568 +0x0d1 U+2564 +0x0d2 U+2565 +0x0d3 U+2559 +0x0d4 U+2558 +0x0d5 U+2552 +0x0d6 U+2553 +0x0d7 U+256b +0x0d8 U+256a +0x0d9 U+2518 +0x0da U+250c +0x0db U+2588 +0x0dc U+2584 +0x0dd U+258c +0x0de U+2590 +0x0df U+2580 +0x0e0 U+03b1 +0x0e1 U+00df U+03b2 +0x0e2 U+0393 +0x0e3 U+03c0 +0x0e4 U+03a3 +0x0e5 U+03c3 +0x0e6 U+00b5 U+03bc +0x0e7 U+03c4 +0x0e8 U+03a6 +0x0e9 U+0398 +0x0ea U+03a9 U+2126 +0x0eb U+03b4 +0x0ec U+221e +0x0ed U+03c6 U+2205 U+2300 +0x0ee U+03b5 U+2208 +0x0ef U+2229 +0x0f0 U+2261 +0x0f1 U+00b1 +0x0f2 U+2265 +0x0f3 U+2264 +0x0f4 U+2320 +0x0f5 U+2321 +0x0f6 U+00f7 +0x0f7 U+2248 +0x0f8 U+00b0 +0x0f9 U+2219 U+22c5 +0x0fa U+00b7 +0x0fb U+221a +0x0fc U+207f +0x0fd U+00b2 +0x0fe U+220e U+25a0 +0x0ff U+00a0 diff --git a/etc/psf/sans6x10.psf b/etc/psf/sans6x10.psf new file mode 100644 index 00000000..09bb1af6 --- /dev/null +++ b/etc/psf/sans6x10.psf Binary files differdiff --git a/etc/psf/sans6x12.psf b/etc/psf/sans6x12.psf new file mode 100644 index 00000000..75c1fd49 --- /dev/null +++ b/etc/psf/sans6x12.psf Binary files differdiff --git a/etc/psf/sans6x8.psf b/etc/psf/sans6x8.psf new file mode 100644 index 00000000..fef671d8 --- /dev/null +++ b/etc/psf/sans6x8.psf Binary files differdiff --git a/etc/wsconsctl.conf b/etc/wsconsctl.conf new file mode 100644 index 00000000..05f29b6a --- /dev/null +++ b/etc/wsconsctl.conf @@ -0,0 +1,26 @@ +display.brightness=50% +keyboard.backlight=0% + +mouse1.tp.tapping=1 +mouse1.tp.scaling=0.2 +mouse1.reverse_scrolling=1 + +keyboard1.repeat.del1=200 +keyboard1.repeat.deln=50 + +keyboard1.map+='keycode 30 = exclam 1' +keyboard1.map+='keycode 31 = at 2' +keyboard1.map+='keycode 32 = numbersign 3' +keyboard1.map+='keycode 33 = dollar 4' +keyboard1.map+='keycode 34 = percent 5' +keyboard1.map+='keycode 35 = asciicircum 6' +keyboard1.map+='keycode 36 = ampersand 7' +keyboard1.map+='keycode 37 = asterisk 8' +keyboard1.map+='keycode 38 = parenleft 9' +keyboard1.map+='keycode 39 = parenright 0' +keyboard1.map+='keycode 45 = underscore minus' +keyboard1.map+='keycode 47 = braceleft bracketleft' +keyboard1.map+='keycode 48 = braceright bracketright' +keyboard1.map+='keycode 49 = bar backslash' +keyboard1.map+='keycode 50 = bar backslash' +keyboard1.map+='keycode 57 = Escape' diff --git a/filter.c b/filter.c deleted file mode 100644 index 70f5b749..00000000 --- a/filter.c +++ /dev/null @@ -1,457 +0,0 @@ -/* filter.c: filter framework functions - * - * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com> - * - * Licensed under GNU General Public License v2 - * (see COPYING for full license text) - */ - -#include "cgit.h" -#include "html.h" -#ifndef NO_LUA -#include <dlfcn.h> -#include <lua.h> -#include <lualib.h> -#include <lauxlib.h> -#endif - -static inline void reap_filter(struct cgit_filter *filter) -{ - if (filter && filter->cleanup) - filter->cleanup(filter); -} - -void cgit_cleanup_filters(void) -{ - int i; - reap_filter(ctx.cfg.about_filter); - reap_filter(ctx.cfg.commit_filter); - reap_filter(ctx.cfg.source_filter); - reap_filter(ctx.cfg.email_filter); - reap_filter(ctx.cfg.owner_filter); - reap_filter(ctx.cfg.auth_filter); - for (i = 0; i < cgit_repolist.count; ++i) { - reap_filter(cgit_repolist.repos[i].about_filter); - reap_filter(cgit_repolist.repos[i].commit_filter); - reap_filter(cgit_repolist.repos[i].source_filter); - reap_filter(cgit_repolist.repos[i].email_filter); - reap_filter(cgit_repolist.repos[i].owner_filter); - } -} - -static int open_exec_filter(struct cgit_filter *base, va_list ap) -{ - struct cgit_exec_filter *filter = (struct cgit_exec_filter *)base; - int pipe_fh[2]; - int i; - - for (i = 0; i < filter->base.argument_count; i++) - filter->argv[i + 1] = va_arg(ap, char *); - - filter->old_stdout = chk_positive(dup(STDOUT_FILENO), - "Unable to duplicate STDOUT"); - chk_zero(pipe(pipe_fh), "Unable to create pipe to subprocess"); - filter->pid = chk_non_negative(fork(), "Unable to create subprocess"); - if (filter->pid == 0) { - close(pipe_fh[1]); - chk_non_negative(dup2(pipe_fh[0], STDIN_FILENO), - "Unable to use pipe as STDIN"); - execvp(filter->cmd, filter->argv); - die_errno("Unable to exec subprocess %s", filter->cmd); - } - close(pipe_fh[0]); - chk_non_negative(dup2(pipe_fh[1], STDOUT_FILENO), - "Unable to use pipe as STDOUT"); - close(pipe_fh[1]); - return 0; -} - -static int close_exec_filter(struct cgit_filter *base) -{ - struct cgit_exec_filter *filter = (struct cgit_exec_filter *)base; - int i, exit_status = 0; - - chk_non_negative(dup2(filter->old_stdout, STDOUT_FILENO), - "Unable to restore STDOUT"); - close(filter->old_stdout); - if (filter->pid < 0) - goto done; - waitpid(filter->pid, &exit_status, 0); - if (WIFEXITED(exit_status)) - goto done; - die("Subprocess %s exited abnormally", filter->cmd); - -done: - for (i = 0; i < filter->base.argument_count; i++) - filter->argv[i + 1] = NULL; - return WEXITSTATUS(exit_status); - -} - -static void fprintf_exec_filter(struct cgit_filter *base, FILE *f, const char *prefix) -{ - struct cgit_exec_filter *filter = (struct cgit_exec_filter *)base; - fprintf(f, "%sexec:%s\n", prefix, filter->cmd); -} - -static void cleanup_exec_filter(struct cgit_filter *base) -{ - struct cgit_exec_filter *filter = (struct cgit_exec_filter *)base; - if (filter->argv) { - free(filter->argv); - filter->argv = NULL; - } - if (filter->cmd) { - free(filter->cmd); - filter->cmd = NULL; - } -} - -static struct cgit_filter *new_exec_filter(const char *cmd, int argument_count) -{ - struct cgit_exec_filter *f; - int args_size = 0; - - f = xmalloc(sizeof(*f)); - /* We leave argv for now and assign it below. */ - cgit_exec_filter_init(f, xstrdup(cmd), NULL); - f->base.argument_count = argument_count; - args_size = (2 + argument_count) * sizeof(char *); - f->argv = xmalloc(args_size); - memset(f->argv, 0, args_size); - f->argv[0] = f->cmd; - return &f->base; -} - -void cgit_exec_filter_init(struct cgit_exec_filter *filter, char *cmd, char **argv) -{ - memset(filter, 0, sizeof(*filter)); - filter->base.open = open_exec_filter; - filter->base.close = close_exec_filter; - filter->base.fprintf = fprintf_exec_filter; - filter->base.cleanup = cleanup_exec_filter; - filter->cmd = cmd; - filter->argv = argv; - /* The argument count for open_filter is zero by default, unless called from new_filter, above. */ - filter->base.argument_count = 0; -} - -#ifdef NO_LUA -void cgit_init_filters(void) -{ -} -#endif - -#ifndef NO_LUA -static ssize_t (*libc_write)(int fd, const void *buf, size_t count); -static ssize_t (*filter_write)(struct cgit_filter *base, const void *buf, size_t count) = NULL; -static struct cgit_filter *current_write_filter = NULL; - -void cgit_init_filters(void) -{ - libc_write = dlsym(RTLD_NEXT, "write"); - if (!libc_write) - die("Could not locate libc's write function"); -} - -ssize_t write(int fd, const void *buf, size_t count) -{ - if (fd != STDOUT_FILENO || !filter_write) - return libc_write(fd, buf, count); - return filter_write(current_write_filter, buf, count); -} - -static inline void hook_write(struct cgit_filter *filter, ssize_t (*new_write)(struct cgit_filter *base, const void *buf, size_t count)) -{ - /* We want to avoid buggy nested patterns. */ - assert(filter_write == NULL); - assert(current_write_filter == NULL); - current_write_filter = filter; - filter_write = new_write; -} - -static inline void unhook_write(void) -{ - assert(filter_write != NULL); - assert(current_write_filter != NULL); - filter_write = NULL; - current_write_filter = NULL; -} - -struct lua_filter { - struct cgit_filter base; - char *script_file; - lua_State *lua_state; -}; - -static void error_lua_filter(struct lua_filter *filter) -{ - die("Lua error in %s: %s", filter->script_file, lua_tostring(filter->lua_state, -1)); - lua_pop(filter->lua_state, 1); -} - -static ssize_t write_lua_filter(struct cgit_filter *base, const void *buf, size_t count) -{ - struct lua_filter *filter = (struct lua_filter *)base; - - lua_getglobal(filter->lua_state, "filter_write"); - lua_pushlstring(filter->lua_state, buf, count); - if (lua_pcall(filter->lua_state, 1, 0, 0)) { - error_lua_filter(filter); - errno = EIO; - return -1; - } - return count; -} - -static inline int hook_lua_filter(lua_State *lua_state, void (*fn)(const char *txt)) -{ - const char *str; - ssize_t (*save_filter_write)(struct cgit_filter *base, const void *buf, size_t count); - struct cgit_filter *save_filter; - - str = lua_tostring(lua_state, 1); - if (!str) - return 0; - - save_filter_write = filter_write; - save_filter = current_write_filter; - unhook_write(); - fn(str); - hook_write(save_filter, save_filter_write); - - return 0; -} - -static int html_lua_filter(lua_State *lua_state) -{ - return hook_lua_filter(lua_state, html); -} - -static int html_txt_lua_filter(lua_State *lua_state) -{ - return hook_lua_filter(lua_state, html_txt); -} - -static int html_attr_lua_filter(lua_State *lua_state) -{ - return hook_lua_filter(lua_state, html_attr); -} - -static int html_url_path_lua_filter(lua_State *lua_state) -{ - return hook_lua_filter(lua_state, html_url_path); -} - -static int html_url_arg_lua_filter(lua_State *lua_state) -{ - return hook_lua_filter(lua_state, html_url_arg); -} - -static int html_include_lua_filter(lua_State *lua_state) -{ - return hook_lua_filter(lua_state, (void (*)(const char *))html_include); -} - -static void cleanup_lua_filter(struct cgit_filter *base) -{ - struct lua_filter *filter = (struct lua_filter *)base; - - if (!filter->lua_state) - return; - - lua_close(filter->lua_state); - filter->lua_state = NULL; - if (filter->script_file) { - free(filter->script_file); - filter->script_file = NULL; - } -} - -static int init_lua_filter(struct lua_filter *filter) -{ - if (filter->lua_state) - return 0; - - if (!(filter->lua_state = luaL_newstate())) - return 1; - - luaL_openlibs(filter->lua_state); - - lua_pushcfunction(filter->lua_state, html_lua_filter); - lua_setglobal(filter->lua_state, "html"); - lua_pushcfunction(filter->lua_state, html_txt_lua_filter); - lua_setglobal(filter->lua_state, "html_txt"); - lua_pushcfunction(filter->lua_state, html_attr_lua_filter); - lua_setglobal(filter->lua_state, "html_attr"); - lua_pushcfunction(filter->lua_state, html_url_path_lua_filter); - lua_setglobal(filter->lua_state, "html_url_path"); - lua_pushcfunction(filter->lua_state, html_url_arg_lua_filter); - lua_setglobal(filter->lua_state, "html_url_arg"); - lua_pushcfunction(filter->lua_state, html_include_lua_filter); - lua_setglobal(filter->lua_state, "html_include"); - - if (luaL_dofile(filter->lua_state, filter->script_file)) { - error_lua_filter(filter); - lua_close(filter->lua_state); - filter->lua_state = NULL; - return 1; - } - return 0; -} - -static int open_lua_filter(struct cgit_filter *base, va_list ap) -{ - struct lua_filter *filter = (struct lua_filter *)base; - int i; - - if (init_lua_filter(filter)) - return 1; - - hook_write(base, write_lua_filter); - - lua_getglobal(filter->lua_state, "filter_open"); - for (i = 0; i < filter->base.argument_count; ++i) - lua_pushstring(filter->lua_state, va_arg(ap, char *)); - if (lua_pcall(filter->lua_state, filter->base.argument_count, 0, 0)) { - error_lua_filter(filter); - return 1; - } - return 0; -} - -static int close_lua_filter(struct cgit_filter *base) -{ - struct lua_filter *filter = (struct lua_filter *)base; - int ret = 0; - - lua_getglobal(filter->lua_state, "filter_close"); - if (lua_pcall(filter->lua_state, 0, 1, 0)) { - error_lua_filter(filter); - ret = -1; - } else { - ret = lua_tonumber(filter->lua_state, -1); - lua_pop(filter->lua_state, 1); - } - - unhook_write(); - return ret; -} - -static void fprintf_lua_filter(struct cgit_filter *base, FILE *f, const char *prefix) -{ - struct lua_filter *filter = (struct lua_filter *)base; - fprintf(f, "%slua:%s\n", prefix, filter->script_file); -} - - -static struct cgit_filter *new_lua_filter(const char *cmd, int argument_count) -{ - struct lua_filter *filter; - - filter = xmalloc(sizeof(*filter)); - memset(filter, 0, sizeof(*filter)); - filter->base.open = open_lua_filter; - filter->base.close = close_lua_filter; - filter->base.fprintf = fprintf_lua_filter; - filter->base.cleanup = cleanup_lua_filter; - filter->base.argument_count = argument_count; - filter->script_file = xstrdup(cmd); - - return &filter->base; -} - -#endif - - -int cgit_open_filter(struct cgit_filter *filter, ...) -{ - int result; - va_list ap; - if (!filter) - return 0; - va_start(ap, filter); - result = filter->open(filter, ap); - va_end(ap); - return result; -} - -int cgit_close_filter(struct cgit_filter *filter) -{ - if (!filter) - return 0; - return filter->close(filter); -} - -void cgit_fprintf_filter(struct cgit_filter *filter, FILE *f, const char *prefix) -{ - filter->fprintf(filter, f, prefix); -} - - - -static const struct { - const char *prefix; - struct cgit_filter *(*ctor)(const char *cmd, int argument_count); -} filter_specs[] = { - { "exec", new_exec_filter }, -#ifndef NO_LUA - { "lua", new_lua_filter }, -#endif -}; - -struct cgit_filter *cgit_new_filter(const char *cmd, filter_type filtertype) -{ - char *colon; - int i; - size_t len; - int argument_count; - - if (!cmd || !cmd[0]) - return NULL; - - colon = strchr(cmd, ':'); - len = colon - cmd; - /* - * In case we're running on Windows, don't allow a single letter before - * the colon. - */ - if (len == 1) - colon = NULL; - - switch (filtertype) { - case AUTH: - argument_count = 12; - break; - - case EMAIL: - argument_count = 2; - break; - - case OWNER: - argument_count = 0; - break; - - case SOURCE: - case ABOUT: - argument_count = 1; - break; - - case COMMIT: - default: - argument_count = 0; - break; - } - - /* If no prefix is given, exec filter is the default. */ - if (!colon) - return new_exec_filter(cmd, argument_count); - - for (i = 0; i < ARRAY_SIZE(filter_specs); i++) { - if (len == strlen(filter_specs[i].prefix) && - !strncmp(filter_specs[i].prefix, cmd, len)) - return filter_specs[i].ctor(colon + 1, argument_count); - } - - die("Invalid filter type: %.*s", (int) len, cmd); -} diff --git a/filters/email-gravatar.lua b/filters/email-gravatar.lua deleted file mode 100644 index c39b490d..00000000 --- a/filters/email-gravatar.lua +++ /dev/null @@ -1,35 +0,0 @@ --- This script may be used with the email-filter or repo.email-filter settings in cgitrc. --- It adds gravatar icons to author names. It is designed to be used with the lua: --- prefix in filters. It is much faster than the corresponding python script. --- --- Requirements: --- luaossl --- <http://25thandclement.com/~william/projects/luaossl.html> --- - -local digest = require("openssl.digest") - -function md5_hex(input) - local b = digest.new("md5"):final(input) - local x = "" - for i = 1, #b do - x = x .. string.format("%.2x", string.byte(b, i)) - end - return x -end - -function filter_open(email, page) - buffer = "" - md5 = md5_hex(email:sub(2, -2):lower()) -end - -function filter_close() - html("<img src='//www.gravatar.com/avatar/" .. md5 .. "?s=13&d=retro' width='13' height='13' alt='Gravatar' /> " .. buffer) - return 0 -end - -function filter_write(str) - buffer = buffer .. str -end - - diff --git a/filters/email-libravatar.lua b/filters/email-libravatar.lua deleted file mode 100644 index 7336baf8..00000000 --- a/filters/email-libravatar.lua +++ /dev/null @@ -1,36 +0,0 @@ --- This script may be used with the email-filter or repo.email-filter settings in cgitrc. --- It adds libravatar icons to author names. It is designed to be used with the lua: --- prefix in filters. --- --- Requirements: --- luaossl --- <http://25thandclement.com/~william/projects/luaossl.html> --- - -local digest = require("openssl.digest") - -function md5_hex(input) - local b = digest.new("md5"):final(input) - local x = "" - for i = 1, #b do - x = x .. string.format("%.2x", string.byte(b, i)) - end - return x -end - -function filter_open(email, page) - buffer = "" - md5 = md5_hex(email:sub(2, -2):lower()) -end - -function filter_close() - baseurl = os.getenv("HTTPS") and "https://seccdn.libravatar.org/" or "http://cdn.libravatar.org/" - html("<img src='" .. baseurl .. "avatar/" .. md5 .. "?s=13&d=retro' width='13' height='13' alt='Libravatar' /> " .. buffer) - return 0 -end - -function filter_write(str) - buffer = buffer .. str -end - - diff --git a/filters/file-authentication.lua b/filters/file-authentication.lua deleted file mode 100644 index 02488046..00000000 --- a/filters/file-authentication.lua +++ /dev/null @@ -1,359 +0,0 @@ --- This script may be used with the auth-filter. --- --- Requirements: --- luaossl --- <http://25thandclement.com/~william/projects/luaossl.html> --- luaposix --- <https://github.com/luaposix/luaposix> --- -local sysstat = require("posix.sys.stat") -local unistd = require("posix.unistd") -local rand = require("openssl.rand") -local hmac = require("openssl.hmac") - --- This file should contain a series of lines in the form of: --- username1:hash1 --- username2:hash2 --- username3:hash3 --- ... --- Hashes can be generated using something like `mkpasswd -m sha-512 -R 300000`. --- This file should not be world-readable. -local users_filename = "/etc/cgit-auth/users" - --- This file should contain a series of lines in the form of: --- groupname1:username1,username2,username3,... --- ... -local groups_filename = "/etc/cgit-auth/groups" - --- This file should contain a series of lines in the form of: --- reponame1:groupname1,groupname2,groupname3,... --- ... -local repos_filename = "/etc/cgit-auth/repos" - --- Set this to a path this script can write to for storing a persistent --- cookie secret, which should not be world-readable. -local secret_filename = "/var/cache/cgit/auth-secret" - --- --- --- Authentication functions follow below. Swap these out if you want different authentication semantics. --- --- - --- Looks up a hash for a given user. -function lookup_hash(user) - local line - for line in io.lines(users_filename) do - local u, h = string.match(line, "(.-):(.+)") - if u:lower() == user:lower() then - return h - end - end - return nil -end - --- Looks up users for a given repo. -function lookup_users(repo) - local users = nil - local groups = nil - local line, group, user - for line in io.lines(repos_filename) do - local r, g = string.match(line, "(.-):(.+)") - if r == repo then - groups = { } - for group in string.gmatch(g, "([^,]+)") do - groups[group:lower()] = true - end - break - end - end - if groups == nil then - return nil - end - for line in io.lines(groups_filename) do - local g, u = string.match(line, "(.-):(.+)") - if groups[g:lower()] then - if users == nil then - users = { } - end - for user in string.gmatch(u, "([^,]+)") do - users[user:lower()] = true - end - end - end - return users -end - - --- Sets HTTP cookie headers based on post and sets up redirection. -function authenticate_post() - local hash = lookup_hash(post["username"]) - local redirect = validate_value("redirect", post["redirect"]) - - if redirect == nil then - not_found() - return 0 - end - - redirect_to(redirect) - - if hash == nil or hash ~= unistd.crypt(post["password"], hash) then - set_cookie("cgitauth", "") - else - -- One week expiration time - local username = secure_value("username", post["username"], os.time() + 604800) - set_cookie("cgitauth", username) - end - - html("\n") - return 0 -end - - --- Returns 1 if the cookie is valid and 0 if it is not. -function authenticate_cookie() - accepted_users = lookup_users(cgit["repo"]) - if accepted_users == nil then - -- We return as valid if the repo is not protected. - return 1 - end - - local username = validate_value("username", get_cookie(http["cookie"], "cgitauth")) - if username == nil or not accepted_users[username:lower()] then - return 0 - else - return 1 - end -end - --- Prints the html for the login form. -function body() - html("<h2>Authentication Required</h2>") - html("<form method='post' action='") - html_attr(cgit["login"]) - html("'>") - html("<input type='hidden' name='redirect' value='") - html_attr(secure_value("redirect", cgit["url"], 0)) - html("' />") - html("<table>") - html("<tr><td><label for='username'>Username:</label></td><td><input id='username' name='username' autofocus /></td></tr>") - html("<tr><td><label for='password'>Password:</label></td><td><input id='password' name='password' type='password' /></td></tr>") - html("<tr><td colspan='2'><input value='Login' type='submit' /></td></tr>") - html("</table></form>") - - return 0 -end - - - --- --- --- Wrapper around filter API, exposing the http table, the cgit table, and the post table to the above functions. --- --- - -local actions = {} -actions["authenticate-post"] = authenticate_post -actions["authenticate-cookie"] = authenticate_cookie -actions["body"] = body - -function filter_open(...) - action = actions[select(1, ...)] - - http = {} - http["cookie"] = select(2, ...) - http["method"] = select(3, ...) - http["query"] = select(4, ...) - http["referer"] = select(5, ...) - http["path"] = select(6, ...) - http["host"] = select(7, ...) - http["https"] = select(8, ...) - - cgit = {} - cgit["repo"] = select(9, ...) - cgit["page"] = select(10, ...) - cgit["url"] = select(11, ...) - cgit["login"] = select(12, ...) - -end - -function filter_close() - return action() -end - -function filter_write(str) - post = parse_qs(str) -end - - --- --- --- Utility functions based on keplerproject/wsapi. --- --- - -function url_decode(str) - if not str then - return "" - end - str = string.gsub(str, "+", " ") - str = string.gsub(str, "%%(%x%x)", function(h) return string.char(tonumber(h, 16)) end) - str = string.gsub(str, "\r\n", "\n") - return str -end - -function url_encode(str) - if not str then - return "" - end - str = string.gsub(str, "\n", "\r\n") - str = string.gsub(str, "([^%w ])", function(c) return string.format("%%%02X", string.byte(c)) end) - str = string.gsub(str, " ", "+") - return str -end - -function parse_qs(qs) - local tab = {} - for key, val in string.gmatch(qs, "([^&=]+)=([^&=]*)&?") do - tab[url_decode(key)] = url_decode(val) - end - return tab -end - -function get_cookie(cookies, name) - cookies = string.gsub(";" .. cookies .. ";", "%s*;%s*", ";") - return url_decode(string.match(cookies, ";" .. name .. "=(.-);")) -end - -function tohex(b) - local x = "" - for i = 1, #b do - x = x .. string.format("%.2x", string.byte(b, i)) - end - return x -end - --- --- --- Cookie construction and validation helpers. --- --- - -local secret = nil - --- Loads a secret from a file, creates a secret, or returns one from memory. -function get_secret() - if secret ~= nil then - return secret - end - local secret_file = io.open(secret_filename, "r") - if secret_file == nil then - local old_umask = sysstat.umask(63) - local temporary_filename = secret_filename .. ".tmp." .. tohex(rand.bytes(16)) - local temporary_file = io.open(temporary_filename, "w") - if temporary_file == nil then - os.exit(177) - end - temporary_file:write(tohex(rand.bytes(32))) - temporary_file:close() - unistd.link(temporary_filename, secret_filename) -- Intentionally fails in the case that another process is doing the same. - unistd.unlink(temporary_filename) - sysstat.umask(old_umask) - secret_file = io.open(secret_filename, "r") - end - if secret_file == nil then - os.exit(177) - end - secret = secret_file:read() - secret_file:close() - if secret:len() ~= 64 then - os.exit(177) - end - return secret -end - --- Returns value of cookie if cookie is valid. Otherwise returns nil. -function validate_value(expected_field, cookie) - local i = 0 - local value = "" - local field = "" - local expiration = 0 - local salt = "" - local chmac = "" - - if cookie == nil or cookie:len() < 3 or cookie:sub(1, 1) == "|" then - return nil - end - - for component in string.gmatch(cookie, "[^|]+") do - if i == 0 then - field = component - elseif i == 1 then - value = component - elseif i == 2 then - expiration = tonumber(component) - if expiration == nil then - expiration = -1 - end - elseif i == 3 then - salt = component - elseif i == 4 then - chmac = component - else - break - end - i = i + 1 - end - - if chmac == nil or chmac:len() == 0 then - return nil - end - - -- Lua hashes strings, so these comparisons are time invariant. - if chmac ~= tohex(hmac.new(get_secret(), "sha256"):final(field .. "|" .. value .. "|" .. tostring(expiration) .. "|" .. salt)) then - return nil - end - - if expiration == -1 or (expiration ~= 0 and expiration <= os.time()) then - return nil - end - - if url_decode(field) ~= expected_field then - return nil - end - - return url_decode(value) -end - -function secure_value(field, value, expiration) - if value == nil or value:len() <= 0 then - return "" - end - - local authstr = "" - local salt = tohex(rand.bytes(16)) - value = url_encode(value) - field = url_encode(field) - authstr = field .. "|" .. value .. "|" .. tostring(expiration) .. "|" .. salt - authstr = authstr .. "|" .. tohex(hmac.new(get_secret(), "sha256"):final(authstr)) - return authstr -end - -function set_cookie(cookie, value) - html("Set-Cookie: " .. cookie .. "=" .. value .. "; HttpOnly") - if http["https"] == "yes" or http["https"] == "on" or http["https"] == "1" then - html("; secure") - end - html("\n") -end - -function redirect_to(url) - html("Status: 302 Redirect\n") - html("Cache-Control: no-cache, no-store\n") - html("Location: " .. url .. "\n") -end - -function not_found() - html("Status: 404 Not Found\n") - html("Cache-Control: no-cache, no-store\n\n") -end diff --git a/filters/gentoo-ldap-authentication.lua b/filters/gentoo-ldap-authentication.lua deleted file mode 100644 index 673c88d1..00000000 --- a/filters/gentoo-ldap-authentication.lua +++ /dev/null @@ -1,360 +0,0 @@ --- This script may be used with the auth-filter. Be sure to configure it as you wish. --- --- Requirements: --- luaossl --- <http://25thandclement.com/~william/projects/luaossl.html> --- lualdap >= 1.2 --- <https://git.zx2c4.com/lualdap/about/> --- luaposix --- <https://github.com/luaposix/luaposix> --- -local sysstat = require("posix.sys.stat") -local unistd = require("posix.unistd") -local lualdap = require("lualdap") -local rand = require("openssl.rand") -local hmac = require("openssl.hmac") - --- --- --- Configure these variables for your settings. --- --- - --- A list of password protected repositories, with which gentooAccess --- group is allowed to access each one. -local protected_repos = { - glouglou = "infra", - portage = "dev" -} - --- Set this to a path this script can write to for storing a persistent --- cookie secret, which should be guarded. -local secret_filename = "/var/cache/cgit/auth-secret" - - --- --- --- Authentication functions follow below. Swap these out if you want different authentication semantics. --- --- - --- Sets HTTP cookie headers based on post and sets up redirection. -function authenticate_post() - local redirect = validate_value("redirect", post["redirect"]) - - if redirect == nil then - not_found() - return 0 - end - - redirect_to(redirect) - - local groups = gentoo_ldap_user_groups(post["username"], post["password"]) - if groups == nil then - set_cookie("cgitauth", "") - else - -- One week expiration time - set_cookie("cgitauth", secure_value("gentoogroups", table.concat(groups, ","), os.time() + 604800)) - end - - html("\n") - return 0 -end - - --- Returns 1 if the cookie is valid and 0 if it is not. -function authenticate_cookie() - local required_group = protected_repos[cgit["repo"]] - if required_group == nil then - -- We return as valid if the repo is not protected. - return 1 - end - - local user_groups = validate_value("gentoogroups", get_cookie(http["cookie"], "cgitauth")) - if user_groups == nil or user_groups == "" then - return 0 - end - for group in string.gmatch(user_groups, "[^,]+") do - if group == required_group then - return 1 - end - end - return 0 -end - --- Prints the html for the login form. -function body() - html("<h2>Gentoo LDAP Authentication Required</h2>") - html("<form method='post' action='") - html_attr(cgit["login"]) - html("'>") - html("<input type='hidden' name='redirect' value='") - html_attr(secure_value("redirect", cgit["url"], 0)) - html("' />") - html("<table>") - html("<tr><td><label for='username'>Username:</label></td><td><input id='username' name='username' autofocus /></td></tr>") - html("<tr><td><label for='password'>Password:</label></td><td><input id='password' name='password' type='password' /></td></tr>") - html("<tr><td colspan='2'><input value='Login' type='submit' /></td></tr>") - html("</table></form>") - - return 0 -end - --- --- --- Gentoo LDAP support. --- --- - -function gentoo_ldap_user_groups(username, password) - -- Ensure the user is alphanumeric - if username == nil or username:match("%W") then - return nil - end - - local who = "uid=" .. username .. ",ou=devs,dc=gentoo,dc=org" - - local ldap, err = lualdap.open_simple { - uri = "ldap://ldap1.gentoo.org", - who = who, - password = password, - starttls = true, - certfile = "/var/www/uwsgi/cgit/gentoo-ldap/star.gentoo.org.crt", - keyfile = "/var/www/uwsgi/cgit/gentoo-ldap/star.gentoo.org.key", - cacertfile = "/var/www/uwsgi/cgit/gentoo-ldap/ca.pem" - } - if ldap == nil then - return nil - end - - local group_suffix = ".group" - local group_suffix_len = group_suffix:len() - local groups = {} - for dn, attribs in ldap:search { base = who, scope = "subtree" } do - local access = attribs["gentooAccess"] - if dn == who and access ~= nil then - for i, v in ipairs(access) do - local vlen = v:len() - if vlen > group_suffix_len and v:sub(-group_suffix_len) == group_suffix then - table.insert(groups, v:sub(1, vlen - group_suffix_len)) - end - end - end - end - - ldap:close() - - return groups -end - --- --- --- Wrapper around filter API, exposing the http table, the cgit table, and the post table to the above functions. --- --- - -local actions = {} -actions["authenticate-post"] = authenticate_post -actions["authenticate-cookie"] = authenticate_cookie -actions["body"] = body - -function filter_open(...) - action = actions[select(1, ...)] - - http = {} - http["cookie"] = select(2, ...) - http["method"] = select(3, ...) - http["query"] = select(4, ...) - http["referer"] = select(5, ...) - http["path"] = select(6, ...) - http["host"] = select(7, ...) - http["https"] = select(8, ...) - - cgit = {} - cgit["repo"] = select(9, ...) - cgit["page"] = select(10, ...) - cgit["url"] = select(11, ...) - cgit["login"] = select(12, ...) - -end - -function filter_close() - return action() -end - -function filter_write(str) - post = parse_qs(str) -end - - --- --- --- Utility functions based on keplerproject/wsapi. --- --- - -function url_decode(str) - if not str then - return "" - end - str = string.gsub(str, "+", " ") - str = string.gsub(str, "%%(%x%x)", function(h) return string.char(tonumber(h, 16)) end) - str = string.gsub(str, "\r\n", "\n") - return str -end - -function url_encode(str) - if not str then - return "" - end - str = string.gsub(str, "\n", "\r\n") - str = string.gsub(str, "([^%w ])", function(c) return string.format("%%%02X", string.byte(c)) end) - str = string.gsub(str, " ", "+") - return str -end - -function parse_qs(qs) - local tab = {} - for key, val in string.gmatch(qs, "([^&=]+)=([^&=]*)&?") do - tab[url_decode(key)] = url_decode(val) - end - return tab -end - -function get_cookie(cookies, name) - cookies = string.gsub(";" .. cookies .. ";", "%s*;%s*", ";") - return string.match(cookies, ";" .. name .. "=(.-);") -end - -function tohex(b) - local x = "" - for i = 1, #b do - x = x .. string.format("%.2x", string.byte(b, i)) - end - return x -end - --- --- --- Cookie construction and validation helpers. --- --- - -local secret = nil - --- Loads a secret from a file, creates a secret, or returns one from memory. -function get_secret() - if secret ~= nil then - return secret - end - local secret_file = io.open(secret_filename, "r") - if secret_file == nil then - local old_umask = sysstat.umask(63) - local temporary_filename = secret_filename .. ".tmp." .. tohex(rand.bytes(16)) - local temporary_file = io.open(temporary_filename, "w") - if temporary_file == nil then - os.exit(177) - end - temporary_file:write(tohex(rand.bytes(32))) - temporary_file:close() - unistd.link(temporary_filename, secret_filename) -- Intentionally fails in the case that another process is doing the same. - unistd.unlink(temporary_filename) - sysstat.umask(old_umask) - secret_file = io.open(secret_filename, "r") - end - if secret_file == nil then - os.exit(177) - end - secret = secret_file:read() - secret_file:close() - if secret:len() ~= 64 then - os.exit(177) - end - return secret -end - --- Returns value of cookie if cookie is valid. Otherwise returns nil. -function validate_value(expected_field, cookie) - local i = 0 - local value = "" - local field = "" - local expiration = 0 - local salt = "" - local chmac = "" - - if cookie == nil or cookie:len() < 3 or cookie:sub(1, 1) == "|" then - return nil - end - - for component in string.gmatch(cookie, "[^|]+") do - if i == 0 then - field = component - elseif i == 1 then - value = component - elseif i == 2 then - expiration = tonumber(component) - if expiration == nil then - expiration = -1 - end - elseif i == 3 then - salt = component - elseif i == 4 then - chmac = component - else - break - end - i = i + 1 - end - - if chmac == nil or chmac:len() == 0 then - return nil - end - - -- Lua hashes strings, so these comparisons are time invariant. - if chmac ~= tohex(hmac.new(get_secret(), "sha256"):final(field .. "|" .. value .. "|" .. tostring(expiration) .. "|" .. salt)) then - return nil - end - - if expiration == -1 or (expiration ~= 0 and expiration <= os.time()) then - return nil - end - - if url_decode(field) ~= expected_field then - return nil - end - - return url_decode(value) -end - -function secure_value(field, value, expiration) - if value == nil or value:len() <= 0 then - return "" - end - - local authstr = "" - local salt = tohex(rand.bytes(16)) - value = url_encode(value) - field = url_encode(field) - authstr = field .. "|" .. value .. "|" .. tostring(expiration) .. "|" .. salt - authstr = authstr .. "|" .. tohex(hmac.new(get_secret(), "sha256"):final(authstr)) - return authstr -end - -function set_cookie(cookie, value) - html("Set-Cookie: " .. cookie .. "=" .. value .. "; HttpOnly") - if http["https"] == "yes" or http["https"] == "on" or http["https"] == "1" then - html("; secure") - end - html("\n") -end - -function redirect_to(url) - html("Status: 302 Redirect\n") - html("Cache-Control: no-cache, no-store\n") - html("Location: " .. url .. "\n") -end - -function not_found() - html("Status: 404 Not Found\n") - html("Cache-Control: no-cache, no-store\n\n") -end diff --git a/filters/owner-example.lua b/filters/owner-example.lua deleted file mode 100644 index 50fc25a8..00000000 --- a/filters/owner-example.lua +++ /dev/null @@ -1,17 +0,0 @@ --- This script is an example of an owner-filter. It replaces the --- usual query link with one to a fictional homepage. This script may --- be used with the owner-filter or repo.owner-filter settings in --- cgitrc with the `lua:` prefix. - -function filter_open() - buffer = "" -end - -function filter_close() - html(string.format("<a href=\"%s\">%s</a>", "http://wiki.example.com/about/" .. buffer, buffer)) - return 0 -end - -function filter_write(str) - buffer = buffer .. str -end diff --git a/filters/simple-authentication.lua b/filters/simple-authentication.lua deleted file mode 100644 index 23d34576..00000000 --- a/filters/simple-authentication.lua +++ /dev/null @@ -1,314 +0,0 @@ --- This script may be used with the auth-filter. Be sure to configure it as you wish. --- --- Requirements: --- luaossl --- <http://25thandclement.com/~william/projects/luaossl.html> --- luaposix --- <https://github.com/luaposix/luaposix> --- -local sysstat = require("posix.sys.stat") -local unistd = require("posix.unistd") -local rand = require("openssl.rand") -local hmac = require("openssl.hmac") - --- --- --- Configure these variables for your settings. --- --- - --- A list of password protected repositories along with the users who can access them. -local protected_repos = { - glouglou = { laurent = true, jason = true }, - qt = { jason = true, bob = true } -} - --- A list of users and hashes, generated with `mkpasswd -m sha-512 -R 300000`. -local users = { - jason = "$6$rounds=300000$YYJct3n/o.ruYK$HhpSeuCuW1fJkpvMZOZzVizeLsBKcGA/aF2UPuV5v60JyH2MVSG6P511UMTj2F3H75.IT2HIlnvXzNb60FcZH1", - laurent = "$6$rounds=300000$dP0KNHwYb3JKigT$pN/LG7rWxQ4HniFtx5wKyJXBJUKP7R01zTNZ0qSK/aivw8ywGAOdfYiIQFqFhZFtVGvr11/7an.nesvm8iJUi.", - bob = "$6$rounds=300000$jCLCCt6LUpTz$PI1vvd1yaVYcCzqH8QAJFcJ60b6W/6sjcOsU7mAkNo7IE8FRGW1vkjF8I/T5jt/auv5ODLb1L4S2s.CAyZyUC" -} - --- Set this to a path this script can write to for storing a persistent --- cookie secret, which should be guarded. -local secret_filename = "/var/cache/cgit/auth-secret" - --- --- --- Authentication functions follow below. Swap these out if you want different authentication semantics. --- --- - --- Sets HTTP cookie headers based on post and sets up redirection. -function authenticate_post() - local hash = users[post["username"]] - local redirect = validate_value("redirect", post["redirect"]) - - if redirect == nil then - not_found() - return 0 - end - - redirect_to(redirect) - - if hash == nil or hash ~= unistd.crypt(post["password"], hash) then - set_cookie("cgitauth", "") - else - -- One week expiration time - local username = secure_value("username", post["username"], os.time() + 604800) - set_cookie("cgitauth", username) - end - - html("\n") - return 0 -end - - --- Returns 1 if the cookie is valid and 0 if it is not. -function authenticate_cookie() - accepted_users = protected_repos[cgit["repo"]] - if accepted_users == nil then - -- We return as valid if the repo is not protected. - return 1 - end - - local username = validate_value("username", get_cookie(http["cookie"], "cgitauth")) - if username == nil or not accepted_users[username:lower()] then - return 0 - else - return 1 - end -end - --- Prints the html for the login form. -function body() - html("<h2>Authentication Required</h2>") - html("<form method='post' action='") - html_attr(cgit["login"]) - html("'>") - html("<input type='hidden' name='redirect' value='") - html_attr(secure_value("redirect", cgit["url"], 0)) - html("' />") - html("<table>") - html("<tr><td><label for='username'>Username:</label></td><td><input id='username' name='username' autofocus /></td></tr>") - html("<tr><td><label for='password'>Password:</label></td><td><input id='password' name='password' type='password' /></td></tr>") - html("<tr><td colspan='2'><input value='Login' type='submit' /></td></tr>") - html("</table></form>") - - return 0 -end - - - --- --- --- Wrapper around filter API, exposing the http table, the cgit table, and the post table to the above functions. --- --- - -local actions = {} -actions["authenticate-post"] = authenticate_post -actions["authenticate-cookie"] = authenticate_cookie -actions["body"] = body - -function filter_open(...) - action = actions[select(1, ...)] - - http = {} - http["cookie"] = select(2, ...) - http["method"] = select(3, ...) - http["query"] = select(4, ...) - http["referer"] = select(5, ...) - http["path"] = select(6, ...) - http["host"] = select(7, ...) - http["https"] = select(8, ...) - - cgit = {} - cgit["repo"] = select(9, ...) - cgit["page"] = select(10, ...) - cgit["url"] = select(11, ...) - cgit["login"] = select(12, ...) - -end - -function filter_close() - return action() -end - -function filter_write(str) - post = parse_qs(str) -end - - --- --- --- Utility functions based on keplerproject/wsapi. --- --- - -function url_decode(str) - if not str then - return "" - end - str = string.gsub(str, "+", " ") - str = string.gsub(str, "%%(%x%x)", function(h) return string.char(tonumber(h, 16)) end) - str = string.gsub(str, "\r\n", "\n") - return str -end - -function url_encode(str) - if not str then - return "" - end - str = string.gsub(str, "\n", "\r\n") - str = string.gsub(str, "([^%w ])", function(c) return string.format("%%%02X", string.byte(c)) end) - str = string.gsub(str, " ", "+") - return str -end - -function parse_qs(qs) - local tab = {} - for key, val in string.gmatch(qs, "([^&=]+)=([^&=]*)&?") do - tab[url_decode(key)] = url_decode(val) - end - return tab -end - -function get_cookie(cookies, name) - cookies = string.gsub(";" .. cookies .. ";", "%s*;%s*", ";") - return url_decode(string.match(cookies, ";" .. name .. "=(.-);")) -end - -function tohex(b) - local x = "" - for i = 1, #b do - x = x .. string.format("%.2x", string.byte(b, i)) - end - return x -end - --- --- --- Cookie construction and validation helpers. --- --- - -local secret = nil - --- Loads a secret from a file, creates a secret, or returns one from memory. -function get_secret() - if secret ~= nil then - return secret - end - local secret_file = io.open(secret_filename, "r") - if secret_file == nil then - local old_umask = sysstat.umask(63) - local temporary_filename = secret_filename .. ".tmp." .. tohex(rand.bytes(16)) - local temporary_file = io.open(temporary_filename, "w") - if temporary_file == nil then - os.exit(177) - end - temporary_file:write(tohex(rand.bytes(32))) - temporary_file:close() - unistd.link(temporary_filename, secret_filename) -- Intentionally fails in the case that another process is doing the same. - unistd.unlink(temporary_filename) - sysstat.umask(old_umask) - secret_file = io.open(secret_filename, "r") - end - if secret_file == nil then - os.exit(177) - end - secret = secret_file:read() - secret_file:close() - if secret:len() ~= 64 then - os.exit(177) - end - return secret -end - --- Returns value of cookie if cookie is valid. Otherwise returns nil. -function validate_value(expected_field, cookie) - local i = 0 - local value = "" - local field = "" - local expiration = 0 - local salt = "" - local chmac = "" - - if cookie == nil or cookie:len() < 3 or cookie:sub(1, 1) == "|" then - return nil - end - - for component in string.gmatch(cookie, "[^|]+") do - if i == 0 then - field = component - elseif i == 1 then - value = component - elseif i == 2 then - expiration = tonumber(component) - if expiration == nil then - expiration = -1 - end - elseif i == 3 then - salt = component - elseif i == 4 then - chmac = component - else - break - end - i = i + 1 - end - - if chmac == nil or chmac:len() == 0 then - return nil - end - - -- Lua hashes strings, so these comparisons are time invariant. - if chmac ~= tohex(hmac.new(get_secret(), "sha256"):final(field .. "|" .. value .. "|" .. tostring(expiration) .. "|" .. salt)) then - return nil - end - - if expiration == -1 or (expiration ~= 0 and expiration <= os.time()) then - return nil - end - - if url_decode(field) ~= expected_field then - return nil - end - - return url_decode(value) -end - -function secure_value(field, value, expiration) - if value == nil or value:len() <= 0 then - return "" - end - - local authstr = "" - local salt = tohex(rand.bytes(16)) - value = url_encode(value) - field = url_encode(field) - authstr = field .. "|" .. value .. "|" .. tostring(expiration) .. "|" .. salt - authstr = authstr .. "|" .. tohex(hmac.new(get_secret(), "sha256"):final(authstr)) - return authstr -end - -function set_cookie(cookie, value) - html("Set-Cookie: " .. cookie .. "=" .. value .. "; HttpOnly") - if http["https"] == "yes" or http["https"] == "on" or http["https"] == "1" then - html("; secure") - end - html("\n") -end - -function redirect_to(url) - html("Status: 302 Redirect\n") - html("Cache-Control: no-cache, no-store\n") - html("Location: " .. url .. "\n") -end - -function not_found() - html("Status: 404 Not Found\n") - html("Cache-Control: no-cache, no-store\n\n") -end diff --git a/git b/git deleted file mode 160000 -Subproject ebf3c04b262aa27fbb97f8a0156c2347fecafaf diff --git a/gpl.c b/gpl.c new file mode 100644 index 00000000..604089c3 --- /dev/null +++ b/gpl.c @@ -0,0 +1,20 @@ +/* Copyright (C) 2021 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#include <err.h> +#include <stdio.h> +#include <stdlib.h> +#include <sysexits.h> diff --git a/home/.config/X/modmap b/home/.config/X/modmap new file mode 100644 index 00000000..b0b1ea79 --- /dev/null +++ b/home/.config/X/modmap @@ -0,0 +1,16 @@ +clear Lock +keysym Caps_Lock = Escape +keysym 1 = exclam 1 +keysym 2 = at 2 +keysym 3 = numbersign 3 +keysym 4 = dollar 4 +keysym 5 = percent 5 +keysym 6 = asciicircum 6 +keysym 7 = ampersand 7 +keysym 8 = asterisk 8 +keysym 9 = parenleft 9 +keysym 0 = parenright 0 +keysym minus = underscore minus +keysym bracketleft = braceleft bracketleft +keysym bracketright = braceright bracketright +keysym backslash = bar backslash diff --git a/home/.config/X/resources b/home/.config/X/resources new file mode 100644 index 00000000..44b8e791 --- /dev/null +++ b/home/.config/X/resources @@ -0,0 +1,49 @@ +Xft.dpi: 144 +Xft.antialias: true +Xft.hinting: false + +Xcursor.size: 64 +Xcursor.theme: dmz-aa + +XLock.usefirst: false +XLock.echokeys: true + +*Background: rgb:14/13/0E +*Foreground: rgb:B7/A9/80 +*BorderColor: rgb:99/8D/6B + +XTerm*utf8: true +XTerm*metaSendsEscape: true +XTerm*alternateScroll: true +XTerm*allowMouseOps: false +XTerm*bellIsUrgent: true +XTerm*charClass: 33:48,36-47:48,58-59:48,61:48,63-64:48,95:48,126:48 + +XTerm*VT100*translations: #override \n\ + Super <Key>C: copy-selection(CLIPBOARD) \n\ + Super <Key>V: insert-selection(CLIPBOARD) + +XTerm*faceName: Go Mono:size=11 +XTerm*internalBorder: 6 +XTerm*colorBDMode: true +XTerm*scrollBar: false +XTerm*pointerMode: 2 + +XTerm*color0: rgb:16/15/10 +XTerm*color1: rgb:A3/28/10 +XTerm*color2: rgb:72/7A/18 +XTerm*color3: rgb:A3/77/20 +XTerm*color4: rgb:3D/62/66 +XTerm*color5: rgb:7A/49/55 +XTerm*color6: rgb:55/7A/55 +XTerm*color7: rgb:99/8D/6B +XTerm*color8: rgb:4C/46/35 +XTerm*color9: rgb:CC/32/14 +XTerm*color10: rgb:8E/99/1E +XTerm*color11: rgb:CC/95/28 +XTerm*color12: rgb:4C/7B/7F +XTerm*color13: rgb:99/5B/6B +XTerm*color14: rgb:6B/99/6B +XTerm*color15: rgb:CC/BC/8E +XTerm*colorBD: rgb:CC/BC/8E +XTerm*cursorColor: rgb:7A/71/55 diff --git a/home/.config/cwm/cwmrc b/home/.config/cwm/cwmrc new file mode 100644 index 00000000..d72ec163 --- /dev/null +++ b/home/.config/cwm/cwmrc @@ -0,0 +1,87 @@ +sticky yes +snapdist 10 +moveamount 10 + +ignore clock +autogroup 0 clock,XTerm +gap 38 0 0 0 + +unbind-key all +bind-key 4-n terminal +bind-key 4-t "firefox -new-tab about:blank" +bind-key 4-Delete lock +bind-key 4-Down window-lower +bind-key 4-Up window-raise +bind-key 4-slash menu-window +bind-key 4-Tab group-cycle +bind-key 4S-Tab group-rcycle +bind-key 4-grave window-cycle +bind-key 4S-grave window-rcycle +bind-key 4-w window-close +bind-key 4-exclam group-only-1 +bind-key 4-at group-only-2 +bind-key 4-numbersign group-only-3 +bind-key 4-dollar group-only-4 +bind-key 4-percent group-only-5 +bind-key 4-asciicircum group-only-6 +bind-key 4-ampersand group-only-7 +bind-key 4-asterisk group-only-8 +bind-key 4-parenleft group-only-9 +bind-key 4S-exclam window-movetogroup-1 +bind-key 4S-at window-movetogroup-2 +bind-key 4S-numbersign window-movetogroup-3 +bind-key 4S-dollar window-movetogroup-4 +bind-key 4S-percent window-movetogroup-5 +bind-key 4S-asciicircum window-movetogroup-6 +bind-key 4S-ampersand window-movetogroup-7 +bind-key 4S-asterisk window-movetogroup-8 +bind-key 4S-parenleft window-movetogroup-9 +bind-key 4-f window-fullscreen +bind-key 4-m window-maximize +bind-key 4-equal window-vmaximize +bind-key 4S-equal window-hmaximize +bind-key 4-underscore window-vtile +bind-key 4S-underscore window-htile +bind-key 4-h window-move-left-big +bind-key 4-j window-move-down-big +bind-key 4-k window-move-up-big +bind-key 4-l window-move-right-big +bind-key 4S-h window-move-left +bind-key 4S-j window-move-down +bind-key 4S-k window-move-up +bind-key 4S-l window-move-right +bind-key 4S-y window-snap-up-left +bind-key 4S-u window-snap-up-right +bind-key 4S-b window-snap-down-left +bind-key 4S-n window-snap-down-right +bind-key 4M-h window-resize-left +bind-key 4M-j window-resize-down +bind-key 4M-k window-resize-up +bind-key 4M-l window-resize-right +bind-key 4MS-h window-resize-left-big +bind-key 4MS-j window-resize-down-big +bind-key 4MS-k window-resize-up-big +bind-key 4MS-l window-resize-right-big +bind-key 4-space menu-exec +bind-key 4S-r restart +bind-key 4S-q quit + +bind-key F1 "xbacklight -steps 1 -5" +bind-key F2 "xbacklight -steps 1 +5" +bind-key F10 "sndioctl output.mute=!" +bind-key F11 "sndioctl output.level=-0.05" +bind-key F12 "sndioctl output.level=+0.05" + +unbind-mouse all +bind-mouse 4-1 window-move +bind-mouse 4S-1 window-resize + +fontname "Go Mono:size=11" +borderwidth 2 +color inactiveborder rgb:4C/46/35 +color activeborder rgb:99/8D/6B +color urgencyborder rgb:A3/77/20 +color menubg rgb:14/13/0E +color menufg rgb:B7/A9/80 +color font rgb:B7/A9/80 +color selfont rgb:14/13/0E diff --git a/home/.config/git/config b/home/.config/git/config new file mode 100644 index 00000000..ada63e41 --- /dev/null +++ b/home/.config/git/config @@ -0,0 +1,24 @@ +[user] + name = C. McEnroe + email = june@causal.agency + +[commit] + verbose = true + +[diff] + colorMoved = default + +[merge] + conflictStyle = diff3 + +[pull] + rebase = true + +[rebase] + autosquash = true + +[pretty] + log = %Cred%h %Creset%s%C(yellow)%d %Cgreen(%ar) %Cblue<%aN> + +[include] + path = ./private diff --git a/home/.config/git/ignore b/home/.config/git/ignore new file mode 100644 index 00000000..fea54519 --- /dev/null +++ b/home/.config/git/ignore @@ -0,0 +1,2 @@ +*.DS_store +*.dSYM/ diff --git a/home/.config/htop/htoprc b/home/.config/htop/htoprc new file mode 100644 index 00000000..cdda268d --- /dev/null +++ b/home/.config/htop/htoprc @@ -0,0 +1,29 @@ +# Beware! This file is rewritten by htop when settings are changed in the interface. +# The parser is also very primitive, and not human-friendly. +fields=0 48 39 2 46 49 1 +sort_key=47 +sort_direction=1 +hide_threads=0 +hide_kernel_threads=1 +hide_userland_threads=1 +shadow_other_users=0 +show_thread_names=0 +show_program_path=1 +highlight_base_name=1 +highlight_megabytes=1 +highlight_threads=1 +tree_view=1 +header_margin=0 +detailed_cpu_time=0 +cpu_count_from_zero=0 +show_cpu_usage=1 +show_cpu_frequency=0 +update_process_names=0 +account_guest_in_cpu_meter=0 +color_scheme=0 +enable_mouse=0 +delay=15 +left_meters=AllCPUs2 +left_meter_modes=1 +right_meters=Memory Swap +right_meter_modes=1 1 diff --git a/home/.editrc b/home/.editrc new file mode 100644 index 00000000..cf779a7d --- /dev/null +++ b/home/.editrc @@ -0,0 +1 @@ +bind -v diff --git a/home/.gdbinit b/home/.gdbinit new file mode 100644 index 00000000..9422460c --- /dev/null +++ b/home/.gdbinit @@ -0,0 +1 @@ +set disassembly-flavor intel diff --git a/home/.hushlogin b/home/.hushlogin new file mode 100644 index 00000000..e69de29b --- /dev/null +++ b/home/.hushlogin diff --git a/home/.inputrc b/home/.inputrc new file mode 100644 index 00000000..b2cc9d61 --- /dev/null +++ b/home/.inputrc @@ -0,0 +1 @@ +set editing-mode vi diff --git a/home/.lldbinit b/home/.lldbinit new file mode 100644 index 00000000..73f3e676 --- /dev/null +++ b/home/.lldbinit @@ -0,0 +1 @@ +settings set target.x86-disassembly-flavor intel diff --git a/home/.local/bin/aes b/home/.local/bin/aes new file mode 100755 index 00000000..32b52637 --- /dev/null +++ b/home/.local/bin/aes @@ -0,0 +1,7 @@ +#!/bin/sh +set -eu + +enwiden() { + exec tr ' -~' '　ï¼-～' +} +[ $# -gt 0 ] && echo "$*" | enwiden || enwiden diff --git a/home/.local/bin/clock b/home/.local/bin/clock new file mode 100755 index 00000000..ef8cd6d8 --- /dev/null +++ b/home/.local/bin/clock @@ -0,0 +1,17 @@ +#!/bin/sh +set -eu + +tput civis +sleep=$(( 60 - $(date +'%S' | sed 's/^0//') )) +while :; do + if [ $(apm -a) -eq 1 ]; then + printf '%3s%%' "$(apm -l)" + else + test $(apm -b) -eq 2 && tput setaf 1 bold + printf '%3.3sm' "$(apm -m)" + tput sgr0 + fi + printf ' %s\r' "$(date +'%a %H:%M')" + sleep $sleep + sleep=60 +done diff --git a/home/.local/bin/def b/home/.local/bin/def new file mode 100755 index 00000000..6a1681d3 --- /dev/null +++ b/home/.local/bin/def @@ -0,0 +1,47 @@ +#!/bin/sh +set -eu + +macro=$1 +headers=' +assert.h +complex.h +ctype.h +errno.h +fenv.h +float.h +inttypes.h +iso646.h +limits.h +locale.h +math.h +setjmp.h +signal.h +stdalign.h +stdarg.h +stdatomic.h +stdbool.h +stddef.h +stdint.h +stdio.h +stdlib.h +stdnoreturn.h +string.h +tgmath.h +threads.h +time.h +uchar.h +wchar.h +wctype.h +' + +for header in $headers; do + defined=$( + echo "$macro" \ + | cc -E -x c -include "$header" - \ + 2> /dev/null \ + | tail -n 1 + ) + [ $? -ne 0 -o "$defined" = "$macro" ] && continue + echo "#include <${header}>" + echo "$defined" +done diff --git a/home/.local/bin/deg b/home/.local/bin/deg new file mode 100755 index 00000000..216029ed --- /dev/null +++ b/home/.local/bin/deg @@ -0,0 +1,6 @@ +#!/bin/sh +set -eu +cat <<EOF +${1}°F = $(dc -e "1k $(echo "$1" | sed 's/^-/_/') 32-1.8/p")°C +${1}°C = $(dc -e "1k $(echo "$1" | sed 's/^-/_/') 1.8*32+p")°F +EOF diff --git a/home/.local/bin/git-password b/home/.local/bin/git-password new file mode 100755 index 00000000..41351e38 --- /dev/null +++ b/home/.local/bin/git-password @@ -0,0 +1,7 @@ +#!/bin/sh +set -eu + +url=$1 +echo "url=${url}" \ + | git credential fill \ + | sed -En 's/^password=(.*)/\1/p' diff --git a/home/.local/bin/mdate b/home/.local/bin/mdate new file mode 100755 index 00000000..daff50dc --- /dev/null +++ b/home/.local/bin/mdate @@ -0,0 +1,2 @@ +#!/bin/sh +exec date +'.Dd %B %e, %Y' diff --git a/home/.local/bin/nasd b/home/.local/bin/nasd new file mode 100755 index 00000000..d64b2c3a --- /dev/null +++ b/home/.local/bin/nasd @@ -0,0 +1,9 @@ +#!/bin/sh +set -eu + +dir=$(mktemp -d) +echo 'bits 64' > "${dir}/input" +cat >> "${dir}/input" +nasm -o "${dir}/output" "${dir}/input" || true +ndisasm -b 64 "${dir}/output" || true +rm -r "$dir" diff --git a/home/.local/bin/notify-send b/home/.local/bin/notify-send new file mode 100755 index 00000000..5630440d --- /dev/null +++ b/home/.local/bin/notify-send @@ -0,0 +1,9 @@ +#!/usr/bin/osascript + +on run argv + if count of argv is 2 then + display notification (item 2 of argv) with title (item 1 of argv) + else + display notification (item 1 of argv) + end if +end run diff --git a/home/.local/bin/np b/home/.local/bin/np new file mode 100755 index 00000000..b0eb2326 --- /dev/null +++ b/home/.local/bin/np @@ -0,0 +1,7 @@ +#!/usr/bin/osascript + +tell application "Music" + tell current track + get "/me is listening to " & artist & " — " & name + end tell +end tell diff --git a/home/.local/bin/open b/home/.local/bin/open new file mode 100755 index 00000000..cc13d0a6 --- /dev/null +++ b/home/.local/bin/open @@ -0,0 +1,18 @@ +#!/bin/sh +set -eu + +if [ -n "${SSH_CLIENT:-}" ]; then + exec pbd -o "$@" +fi + +case "$1" in + (*.gif|*.jpeg|*.jpg|*.png) + curl -LSs "$1" | imv - + ;; + (https://youtu.be/*|https://www.youtube.com/watch*|https://twitch.tv/*) + exec mpv "$1" >/dev/null 2>&1 + ;; + (*) + exec firefox -new-tab "$1" >/dev/null 2>&1 + ;; +esac diff --git a/home/.local/bin/pbcopy b/home/.local/bin/pbcopy new file mode 100755 index 00000000..a804f836 --- /dev/null +++ b/home/.local/bin/pbcopy @@ -0,0 +1,11 @@ +#!/bin/sh +set -eu + +if [ -n "${SSH_CLIENT:-}" ]; then + exec pbd -c +elif [ -n "${DISPLAY:-}" ]; then + exec xsel -bi +else + echo "${0}: don't know what to do" >&2 + exit 1 +fi diff --git a/home/.local/bin/pbpaste b/home/.local/bin/pbpaste new file mode 100755 index 00000000..2924f01e --- /dev/null +++ b/home/.local/bin/pbpaste @@ -0,0 +1,11 @@ +#!/bin/sh +set -eu + +if [ -n "${SSH_CLIENT:-}" ]; then + exec pbd -p +elif [ -n "${DISPLAY:-}" ]; then + exec xsel -bo +else + echo "${0}: don't know what to do" >&2 + exit 1 +fi diff --git a/home/.local/bin/versions b/home/.local/bin/versions new file mode 100755 index 00000000..25e5ff72 --- /dev/null +++ b/home/.local/bin/versions @@ -0,0 +1,9 @@ +#!/bin/sh +set -u + +for repo in ~/src/git/*; do + version=$(git -C "${repo}" describe --dirty 2>/dev/null) + if [ $? -eq 0 ]; then + echo "${repo##*/}-${version#v}" + fi +done | sort -nr -t '-' -k 3 | column -t -s '-' diff --git a/home/.profile b/home/.profile new file mode 100644 index 00000000..d719799b --- /dev/null +++ b/home/.profile @@ -0,0 +1,23 @@ +_PATH=$PATH PATH= +path() { [ -d "$1" ] && PATH="${PATH}${PATH:+:}${1}"; } +for prefix in '' /usr/local /opt/local /usr ~/.local; do + path "${prefix}/sbin" + path "${prefix}/bin" +done +path /usr/X11R6/bin +path /usr/games +export MANPATH=:~/.local/share/man + +export EDITOR=vi +type nvi >/dev/null && EDITOR=nvi +export EXINIT='set ai ic sm sw=4 ts=4 para=BlBdPpIt sect=ShSs | map gg 1G' +export PAGER=less +export LESS=FRXix4 +export CLICOLOR=1 +export MANSECT=2:3:1:8:6:5:7:4:9 +export NETHACKOPTIONS='pickup_types:$!?+/=, color, DECgraphics' + +[ -e /usr/share/mk/sys.mk ] || export CFLAGS=-O +[ -d /usr/home ] && cd + +export ENV=~/.shrc diff --git a/home/.shrc b/home/.shrc new file mode 100644 index 00000000..4b0e6c61 --- /dev/null +++ b/home/.shrc @@ -0,0 +1,63 @@ +set -o noclobber -o nounset -o vi + +CDPATH=:~ + +alias vi=$EDITOR +alias ls='LC_COLLATE=C ls -p' +alias ll='ls -hl' +alias ff='find . -type f -name' +alias bc='bc -l' +alias ag='ag --pager=$PAGER' +alias gs='git status --short --branch || ls' gd='git diff' +alias gsh='git show' gl='git log --graph --pretty=log' +alias gco='git checkout' gb='git branch' gm='git merge' gst='git stash' +alias ga='git add' gmv='git mv' grm='git rm' +alias gc='git commit' gca='gc --amend' gt='git tag' +alias gp='git push' gu='git pull' gf='git fetch' gr='git rebase' +alias rand='openssl rand -base64 33' +alias private='eval "$(gpg -d ~/.private)"' +type doas >/dev/null && alias sudo=doas + +man() { + test $# -ne 1 && { command man "$@"; return $?; } + (IFS=: + for sect in $MANSECT; do + command man -w $sect "$1" >/dev/null 2>&1 && exec man $sect "$1" + done + exec man "$1") +} + +cd() { + local path + if [ $# -eq 0 ]; then + command cd + elif [ "${1%%:*}" != "$1" ]; then + path=${1#*:} + [ -n "${path}" ] || path=${PWD#${HOME}/} + SSH_CD=$path ssh -o SendEnv=SSH_CD "${1%%:*}" + elif [ -e "$1" -a ! -d "$1" ]; then + command cd "${1%/*}" && $EDITOR "${1##*/}" + else + command cd "$@" + fi +} +if [ -n "${SSH_CD:-}" ]; then + cd "${SSH_CD}" + unset SSH_CD +fi + +export LESS_TERMCAP_us=$(tput sitm) +export LESS_TERMCAP_ue=$(tput ritm) + +hostname=$(hostname -s) +rprompt() { + local pwd + pwd=${PWD#${HOME}} + [ "${pwd}" != "${PWD}" ] && pwd="~${pwd}" + [ "${TERM%-*}" = 'xterm' ] \ + && printf '\33]0;%s\a' "${SSH_CLIENT:+${hostname}:}${pwd##*/}" >&2 + printf '%s' "${SSH_CLIENT:+${hostname}:}${pwd}" +} +PS1=' +$ ' +RPS1='${?#0} $(rprompt)' diff --git a/home/.ssh/config b/home/.ssh/config new file mode 100644 index 00000000..3fc6a8db --- /dev/null +++ b/home/.ssh/config @@ -0,0 +1,18 @@ +IgnoreUnknown Include +Include config_private + +HashKnownHosts yes + +SendEnv LANG LC_* + +Host monday beastie puffy toaster tux progynova + HostName %h.local + ForwardAgent yes + RemoteForward 7062 127.0.0.1:7062 + +Host june july + HostName %h.nyc3.do.causal.agency + Port 2222 + +Host git.causal.agency temp.causal.agency + Port 2222 diff --git a/home/.xsession b/home/.xsession new file mode 100644 index 00000000..ca09445b --- /dev/null +++ b/home/.xsession @@ -0,0 +1,12 @@ +. ~/.profile +export LC_CTYPE=en_US.UTF-8 + +xset r rate 175 m 5/4 0 +xmodmap ~/.config/X/modmap +xrdb -load ~/.config/X/resources +xsetroot -bitmap /usr/X11R6/include/X11/bitmaps/xsnow \ + -bg rgb:14/13/0E -fg rgb:7A/49/55 + +sctd & +xterm -name clock -geometry 14x1-0+0 -sl 0 -e clock & +exec cwm -c ~/.config/cwm/cwmrc diff --git a/install.sh b/install.sh new file mode 100644 index 00000000..9e18c6bf --- /dev/null +++ b/install.sh @@ -0,0 +1,54 @@ +#!/bin/sh +set -eu + +X= +while getopts 'X' opt; do + case "$opt" in + (X) X=1;; + (?) exit 1;; + esac +done + +packages='curl htop sl the_silver_searcher tree' + +FreeBSD() { + sudo pkg install ddate $packages +} + +OpenBSD() { + doas pkg_add $packages + if test $X; then + doas pkg_add firefox go-fonts imv scrot sct w3m-- xcursor-dmz xsel + fi +} + +Linux() { + sudo pacman -Sy --needed bc ctags gdb openssh vi $packages +} + +installMacPorts() { + xcode-select --install + xcodebuild -license + dir=MacPorts-2.6.3 + tar=${dir}.tar.bz2 + curl -O "https://distfiles.macports.org/MacPorts/${tar}" + tar -x -f $tar + (cd $dir && ./configure) + make -C $dir + sudo make -C $dir install + rm -fr $tar $dir +} + +Darwin() { + [ -d /opt/local ] || installMacPorts + sudo /opt/local/bin/port selfupdate + sudo /opt/local/bin/port -N install git mandoc nvi pkgconfig $packages + sudo mkdir -p /opt/local/etc/select/man + printf 'bin/man\nshare/man/man1/man.1\nshare/man/man1/man.1.gz\n' \ + | sudo tee /opt/local/etc/select/man/base >/dev/null + printf '/usr/bin/man\n/usr/share/man/man1/man.1\n-\n' \ + | sudo tee /opt/local/etc/select/man/system >/dev/null + sudo port select --set man system +} + +$(uname) diff --git a/link.sh b/link.sh new file mode 100644 index 00000000..6763f2e0 --- /dev/null +++ b/link.sh @@ -0,0 +1,23 @@ +#!/bin/sh +set -eu + +die() { + echo "$*" + exit 1 +} + +if [ $# -eq 1 ]; then + link=$1 + file="${PWD}/home/${link#${HOME}/}" + [ ! -f "$file" ] || die "${file} exists" + mkdir -p "${file%/*}" + mv "$link" "$file" +fi + +find home -type f | while read -r find; do + file="${PWD}/${find}" + link="${HOME}/${find#home/}" + mkdir -p "${link%/*}" + [ \( -f "$link" -a -L "$link" \) -o ! -f "$link" ] || die "${link} exists" + ln -fs "$file" "$link" +done diff --git a/port/caesar/.gitignore b/port/caesar/.gitignore new file mode 100644 index 00000000..e2c3034b --- /dev/null +++ b/port/caesar/.gitignore @@ -0,0 +1,2 @@ +caesar +rot13 diff --git a/port/caesar/Makefile b/port/caesar/Makefile new file mode 100644 index 00000000..01205b16 --- /dev/null +++ b/port/caesar/Makefile @@ -0,0 +1,19 @@ +PREFIX = ~/.local +MANDIR = ${PREFIX}/share/man + +LDLIBS = -lm + +all: caesar rot13 + +clean: + rm -f caesar rot13 + +install: caesar rot13 caesar.6 + install -d ${PREFIX}/bin ${MANDIR}/man6 + install caesar rot13 ${PREFIX}/bin + install -m 644 caesar.6 ${MANDIR}/man6/caesar.6 + install -m 644 caesar.6 ${MANDIR}/man6/rot13.6 + +uninstall: + rm -f ${PREFIX}/bin/caesar ${PREFIX}/bin/rot13 + rm -f ${MANDIR}/man6/caesar.6 ${MANDIR}/man6/rot13.6 diff --git a/port/caesar/caesar.6 b/port/caesar/caesar.6 new file mode 100644 index 00000000..4c4bbfb4 --- /dev/null +++ b/port/caesar/caesar.6 @@ -0,0 +1,73 @@ +.\" Copyright (c) 1989, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)caesar.6 8.2 (Berkeley) 11/16/93 +.\" $FreeBSD: releng/11.2/usr.bin/caesar/caesar.6 216239 2010-12-06 19:12:51Z uqs $ +.\" +.Dd November 16, 1993 +.Dt CAESAR 6 +.Os +.Sh NAME +.Nm caesar , rot13 +.Nd decrypt caesar ciphers +.Sh SYNOPSIS +.Nm +.Op Ar rotation +.Nm rot13 +.Sh DESCRIPTION +The +.Nm +utility attempts to decrypt caesar ciphers using English letter frequency +statistics. +.Nm Caesar +reads from the standard input and writes to the standard output. +.Pp +The optional numerical argument +.Ar rotation +may be used to specify a specific rotation value. +If invoked as +.Nm rot13 , +a rotation value of 13 will be used. +.Pp +The frequency (from most common to least) of English letters is as follows: +.Bd -ragged -offset indent +ETAONRISHDLFCMUGPYWBVKXJQZ +.Ed +.Pp +Their frequencies as a percentage are as follows: +.Bd -ragged -offset indent +E(13), T(10.5), A(8.1), O(7.9), N(7.1), R(6.8), I(6.3), S(6.1), H(5.2), +D(3.8), L(3.4), F(2.9), C(2.7), M(2.5), U(2.4), G(2), +P(1.9), Y(1.9), +W(1.5), B(1.4), V(.9), K(.4), X(.15), J(.13), Q(.11), Z(.07). +.Ed +.Pp +Rotated postings to +.Tn USENET +and some of the databases used by the +.Xr fortune 6 +program are rotated by 13 characters. diff --git a/port/caesar/caesar.c b/port/caesar/caesar.c new file mode 100644 index 00000000..cd6cd579 --- /dev/null +++ b/port/caesar/caesar.c @@ -0,0 +1,159 @@ +/* + * Copyright (c) 1989, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Rick Adams. + * + * Authors: + * Stan King, John Eldridge, based on algorithm suggested by + * Bob Morris + * 29-Sep-82 + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if 0 +#ifndef lint +static const char copyright[] = +"@(#) Copyright (c) 1989, 1993\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +static const char sccsid[] = "@(#)caesar.c 8.1 (Berkeley) 5/31/93"; +#endif /* not lint */ +#endif +#include <sys/cdefs.h> +//__FBSDID("$FreeBSD: releng/11.2/usr.bin/caesar/caesar.c 241846 2012-10-22 03:06:53Z eadler $"); + +#include <errno.h> +#include <math.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <ctype.h> +#include <unistd.h> + +#define LINELENGTH 2048 +#define ROTATE(ch, perm) \ + isascii(ch) ? ( \ + isupper(ch) ? ('A' + (ch - 'A' + perm) % 26) : \ + islower(ch) ? ('a' + (ch - 'a' + perm) % 26) : ch) : ch + +/* + * letter frequencies (taken from some unix(tm) documentation) + * (unix is a trademark of Bell Laboratories) + */ +static double stdf[26] = { + 7.97, 1.35, 3.61, 4.78, 12.37, 2.01, 1.46, 4.49, 6.39, 0.04, + 0.42, 3.81, 2.69, 5.92, 6.96, 2.91, 0.08, 6.63, 8.77, 9.68, + 2.62, 0.81, 1.88, 0.23, 2.07, 0.06, +}; + +static void printit(char *); + +int +main(int argc, char **argv) +{ + int ch, dot, i, nread, winnerdot = 0; + char *inbuf; + int obs[26], try, winner; + + if (argc > 1) + printit(argv[1]); + + if (!(inbuf = malloc((size_t)LINELENGTH))) { + (void)fprintf(stderr, "caesar: out of memory.\n"); + exit(1); + } + + /* adjust frequency table to weight low probs REAL low */ + for (i = 0; i < 26; ++i) + stdf[i] = log(stdf[i]) + log(26.0 / 100.0); + + /* zero out observation table */ + bzero(obs, 26 * sizeof(int)); + + if ((nread = read(STDIN_FILENO, inbuf, (size_t)LINELENGTH)) < 0) { + (void)fprintf(stderr, "caesar: %s\n", strerror(errno)); + exit(1); + } + for (i = nread; i--;) { + ch = (unsigned char) inbuf[i]; + if (isascii(ch)) { + if (islower(ch)) + ++obs[ch - 'a']; + else if (isupper(ch)) + ++obs[ch - 'A']; + } + } + + /* + * now "dot" the freqs with the observed letter freqs + * and keep track of best fit + */ + for (try = winner = 0; try < 26; ++try) { /* += 13) { */ + dot = 0; + for (i = 0; i < 26; i++) + dot += obs[i] * stdf[(i + try) % 26]; + /* initialize winning score */ + if (try == 0) + winnerdot = dot; + if (dot > winnerdot) { + /* got a new winner! */ + winner = try; + winnerdot = dot; + } + } + + for (;;) { + for (i = 0; i < nread; ++i) { + ch = (unsigned char) inbuf[i]; + putchar(ROTATE(ch, winner)); + } + if (nread < LINELENGTH) + break; + if ((nread = read(STDIN_FILENO, inbuf, (size_t)LINELENGTH)) < 0) { + (void)fprintf(stderr, "caesar: %s\n", strerror(errno)); + exit(1); + } + } + exit(0); +} + +static void +printit(char *arg) +{ + int ch, rot; + + if ((rot = atoi(arg)) < 0) { + (void)fprintf(stderr, "caesar: bad rotation value.\n"); + exit(1); + } + while ((ch = getchar()) != EOF) + putchar(ROTATE(ch, rot)); + exit(0); +} diff --git a/port/caesar/rot13.sh b/port/caesar/rot13.sh new file mode 100644 index 00000000..8ce4b94e --- /dev/null +++ b/port/caesar/rot13.sh @@ -0,0 +1,33 @@ +#!/bin/sh - +# +# Copyright (c) 1992, 1993 +# The Regents of the University of California. All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# 3. Neither the name of the University nor the names of its contributors +# may be used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# @(#)rot13.sh 8.1 (Berkeley) 5/31/93 +# $FreeBSD: releng/11.2/usr.bin/caesar/rot13.sh 278616 2015-02-12 05:35:00Z cperciva $ + +exec caesar 13 "$@" diff --git a/port/cgram/.gitignore b/port/cgram/.gitignore new file mode 100644 index 00000000..d4f2ec10 --- /dev/null +++ b/port/cgram/.gitignore @@ -0,0 +1 @@ +cgram diff --git a/port/cgram/Makefile b/port/cgram/Makefile new file mode 100644 index 00000000..02f11eec --- /dev/null +++ b/port/cgram/Makefile @@ -0,0 +1,17 @@ +PREFIX = ~/.local +MANDIR = ${PREFIX}/share/man + +LDLIBS = -lcurses + +cgram: + +clean: + rm -f cgram + +install: cgram cgram.6 + install -d ${PREFIX}/bin ${MANDIR}/man6 + install cgram ${PREFIX}/bin + install -m 644 cgram.6 ${MANDIR}/man6 + +uninstall: + rm -f ${PREFIX}/bin/cgram ${MANDIR}/man6/cgram.6 diff --git a/port/cgram/cgram.6 b/port/cgram/cgram.6 new file mode 100644 index 00000000..9f315804 --- /dev/null +++ b/port/cgram/cgram.6 @@ -0,0 +1,65 @@ +.\" $NetBSD: cgram.6,v 1.2 2013/08/04 07:55:09 wiz Exp $ +.\" +.\" Copyright (c) 2004, 2013 The NetBSD Foundation, Inc. +.\" All rights reserved. +.\" +.\" This code is derived from software contributed to The NetBSD Foundation +.\" by David A. Holland. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS +.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED +.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS +.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +.\" POSSIBILITY OF SUCH DAMAGE. +.\" +.Dd August 3, 2013 +.Dt CGRAM 6 +.Os +.Sh NAME +.Nm cgram +.Nd solve Sunday-paper cryptograms +.Sh SYNOPSIS +.Nm +.Sh DESCRIPTION +.Nm +is a curses-based widget for solving Sunday-paper-type cryptograms +based on substitution ciphers. +A random cleartext is chosen using +.Xr fortune 6 +and a random substitution key is generated. +.Pp +The ciphertext is displayed. +Typing a letter changes the key so that the letter under the cursor +maps to the newly typed letter, and updates the display accordingly. +Use Emacs-type cursor commands to move around. +Enter a tilde +.Pq ~ +to quit. +Press asterisk +.Pq * +to enter an easier mode where correct letters are displayed in +boldface. +.Sh SEE ALSO +.Xr caesar 6 +.Sh HISTORY +.Nm +was written circa 2004. +It was imported into +.Nx +in 2013 and first appeared in +.Nx 7.0 . diff --git a/port/cgram/cgram.c b/port/cgram/cgram.c new file mode 100644 index 00000000..76ea55fb --- /dev/null +++ b/port/cgram/cgram.c @@ -0,0 +1,344 @@ +/*- + * Copyright (c) 2013 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by David A. Holland. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <ctype.h> +#include <time.h> +#include <err.h> +#include <assert.h> +#include <curses.h> +#include "pathnames.h" + +//////////////////////////////////////////////////////////// + +static char *xstrdup(const char *s) { + char *ret; + + ret = malloc(strlen(s) + 1); + if (ret == NULL) { + errx(1, "Out of memory"); + } + strcpy(ret, s); + return ret; +} + +//////////////////////////////////////////////////////////// + +struct stringarray { + char **v; + int num; +}; + +static void stringarray_init(struct stringarray *a) { + a->v = NULL; + a->num = 0; +} + +static void stringarray_cleanup(struct stringarray *a) { + free(a->v); +} + +static void stringarray_add(struct stringarray *a, const char *s) { + a->v = realloc(a->v, (a->num + 1) * sizeof(a->v[0])); + if (a->v == NULL) { + errx(1, "Out of memory"); + } + a->v[a->num] = xstrdup(s); + a->num++; +} + +//////////////////////////////////////////////////////////// + +static struct stringarray lines; +static struct stringarray sollines; +static bool hinting; +static int scrolldown; +static unsigned curx; +static int cury; + +static void readquote(void) { + FILE *f = popen(_PATH_FORTUNE, "r"); + if (!f) { + err(1, "%s", _PATH_FORTUNE); + } + + char buf[128], buf2[8*sizeof(buf)]; + while (fgets(buf, sizeof(buf), f)) { + char *s = strrchr(buf, '\n'); + assert(s); + assert(strlen(s)==1); + *s = 0; + + int i,j; + for (i=j=0; buf[i]; i++) { + if (buf[i]=='\t') { + buf2[j++] = ' '; + while (j%8) buf2[j++] = ' '; + } + else if (buf[i]=='\b') { + if (j>0) j--; + } + else { + buf2[j++] = buf[i]; + } + } + buf2[j] = 0; + + stringarray_add(&lines, buf2); + stringarray_add(&sollines, buf2); + } + + pclose(f); +} + +static void encode(void) { + int used[26]; + for (int i=0; i<26; i++) used[i] = 0; + + int key[26]; + int keypos=0; + while (keypos < 26) { + int c = random()%26; + if (used[c]) continue; + key[keypos++] = c; + used[c] = 1; + } + + for (int y=0; y<lines.num; y++) { + for (unsigned x=0; lines.v[y][x]; x++) { + if (islower((unsigned char)lines.v[y][x])) { + int q = lines.v[y][x]-'a'; + lines.v[y][x] = 'a'+key[q]; + } + if (isupper((unsigned char)lines.v[y][x])) { + int q = lines.v[y][x]-'A'; + lines.v[y][x] = 'A'+key[q]; + } + } + } +} + +static int substitute(int ch) { + assert(cury>=0 && cury<lines.num); + if (curx >= strlen(lines.v[cury])) { + beep(); + return -1; + } + + int och = lines.v[cury][curx]; + if (!isalpha((unsigned char)och)) { + beep(); + return -1; + } + + int loch = tolower((unsigned char)och); + int uoch = toupper((unsigned char)och); + int lch = tolower((unsigned char)ch); + int uch = toupper((unsigned char)ch); + + for (int y=0; y<lines.num; y++) { + for (unsigned x=0; lines.v[y][x]; x++) { + if (lines.v[y][x]==loch) { + lines.v[y][x] = lch; + } + else if (lines.v[y][x]==uoch) { + lines.v[y][x] = uch; + } + else if (lines.v[y][x]==lch) { + lines.v[y][x] = loch; + } + else if (lines.v[y][x]==uch) { + lines.v[y][x] = uoch; + } + } + } + return 0; +} + +//////////////////////////////////////////////////////////// + +static void redraw(void) { + erase(); + bool won = true; + for (int i=0; i<LINES-1; i++) { + move(i, 0); + int ln = i+scrolldown; + if (ln < lines.num) { + for (unsigned j=0; lines.v[i][j]; j++) { + int ch = lines.v[i][j]; + if (ch != sollines.v[i][j] && isalpha((unsigned char)ch)) { + won = false; + } + bool bold=false; + if (hinting && ch==sollines.v[i][j] && + isalpha((unsigned char)ch)) { + bold = true; + attron(A_BOLD); + } + addch(lines.v[i][j]); + if (bold) { + attroff(A_BOLD); + } + } + } + clrtoeol(); + } + + move(LINES-1, 0); + if (won) { + addstr("*solved* "); + } + addstr("~ to quit, * to cheat, ^pnfb to move"); + + move(LINES-1, 0); + + move(cury-scrolldown, curx); + + refresh(); +} + +static void opencurses(void) { + initscr(); + cbreak(); + noecho(); +} + +static void closecurses(void) { + endwin(); +} + +//////////////////////////////////////////////////////////// + +static void loop(void) { + bool done=false; + while (!done) { + redraw(); + int ch = getch(); + switch (ch) { + case 1: /* ^A */ + curx=0; + break; + case 2: /* ^B */ + if (curx > 0) { + curx--; + } + else if (cury > 0) { + cury--; + curx = strlen(lines.v[cury]); + } + break; + case 5: /* ^E */ + curx = strlen(lines.v[cury]); + break; + case 6: /* ^F */ + if (curx < strlen(lines.v[cury])) { + curx++; + } + else if (cury < lines.num - 1) { + cury++; + curx = 0; + } + break; + case 12: /* ^L */ + clear(); + break; + case 14: /* ^N */ + if (cury < lines.num-1) { + cury++; + } + if (curx > strlen(lines.v[cury])) { + curx = strlen(lines.v[cury]); + } + if (scrolldown < cury - (LINES-2)) { + scrolldown = cury - (LINES-2); + } + break; + case 16: /* ^P */ + if (cury > 0) { + cury--; + } + if (curx > strlen(lines.v[cury])) { + curx = strlen(lines.v[cury]); + } + if (scrolldown > cury) { + scrolldown = cury; + } + break; + case '*': + hinting = !hinting; + break; + case '~': + done = true; + break; + default: + if (isalpha(ch)) { + if (!substitute(ch)) { + if (curx < strlen(lines.v[cury])) { + curx++; + } + if (curx==strlen(lines.v[cury]) && cury < lines.num-1) { + curx=0; + cury++; + } + } + } + else if (curx < strlen(lines.v[cury]) && ch==lines.v[cury][curx]) { + curx++; + if (curx==strlen(lines.v[cury]) && cury < lines.num-1) { + curx=0; + cury++; + } + } + else { + beep(); + } + break; + } + } +} + +//////////////////////////////////////////////////////////// + +int main(void) { + stringarray_init(&lines); + stringarray_init(&sollines); + srandom(time(NULL)); + readquote(); + encode(); + opencurses(); + + loop(); + + closecurses(); + stringarray_cleanup(&sollines); + stringarray_cleanup(&lines); + return 0; +} diff --git a/port/cgram/pathnames.h b/port/cgram/pathnames.h new file mode 100644 index 00000000..40db1eed --- /dev/null +++ b/port/cgram/pathnames.h @@ -0,0 +1,30 @@ +/*- + * Copyright (c) 2013 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by David A. Holland. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#define _PATH_FORTUNE "fortune" diff --git a/port/ddate/.gitignore b/port/ddate/.gitignore new file mode 100644 index 00000000..eaa8a5fd --- /dev/null +++ b/port/ddate/.gitignore @@ -0,0 +1 @@ +ddate diff --git a/port/ddate/Makefile b/port/ddate/Makefile new file mode 100644 index 00000000..c1bc4553 --- /dev/null +++ b/port/ddate/Makefile @@ -0,0 +1,15 @@ +PREFIX ?= ~/.local +MANDIR ?= ${PREFIX}/share/man + +ddate: + +clean: + rm -f ddate + +install: ddate ddate.1 + install -d ${PREFIX}/bin ${MANDIR}/man1 + install ddate ${PREFIX}/bin + install -m 644 ddate.1 ${MANDIR}/man1 + +uninstall: + rm -f ${PREFIX}/bin/ddate ${MANDIR}/man1/ddate.1 diff --git a/port/ddate/ddate.1 b/port/ddate/ddate.1 new file mode 100644 index 00000000..c340578f --- /dev/null +++ b/port/ddate/ddate.1 @@ -0,0 +1,117 @@ +.\" All Rites Reversed. This file is in the PUBLIC DOMAIN. +.\" Kallisti. +.TH DDATE 1 "Bureaucracy 3161" "ddate" "Emperor Norton User Command" +.SH NAME +ddate \- convert Gregorian dates to Discordian dates +.SH SYNOPSIS +.B ddate +.RI [ \fB+\fPformat] +.RI [ date ] +.SH DESCRIPTION +.B ddate +prints the date in Discordian date format. +.PP +If called with no arguments, +.B ddate +will get the current system date, convert this to the Discordian +date format and print this on the standard output. Alternatively, a +Gregorian date may be specified on the command line, in the form of a numerical +day, month and year. +.PP +If a format string is specified, the Discordian date will be printed in +a format specified by the string. This mechanism works similarly to the +format string mechanism of +.B date(1), +only almost completely differently. The fields are: +.IP %A +Full name of the day of the week (i.e., Sweetmorn) +.IP %a +Abbreviated name of the day of the week (i.e., SM) +.IP %B +Full name of the season (i.e., Chaos) +.IP %b +Abbreviated name of the season (i.e., Chs) +.IP %d +Cardinal number of day in season (i.e., 23) +.IP %e +Ordinal number of day in season (i.e., 23rd) +.IP %H +Name of current Holyday, if any +.IP %N +Magic code to prevent rest of format from being printed unless today is +a Holyday. +.IP %n +Newline +.IP %t +Tab +.IP %X +Number of days remaining until X-Day. (Not valid if the SubGenius options +are not compiled in.) +.IP %Y +The year of our Lady Discord (i.e., 3182) +.IP %{ +.IP %} +Used to enclose the part of the string which is to be replaced with the +words "St. Tib's Day" if the current day is St. Tib's Day. +.IP %\. +Try it and see. +.bp +.SH EXAMPLES +.nf +% ddate +.br +Sweetmorn, Bureaucracy 42, 3161 YOLD +.PP +% ddate +'Today is %{%A, the %e of %B%}, %Y. %N%nCelebrate %H' +.br +Today is Sweetmorn, the 42nd of Bureaucracy, 3161. +.PP +% ddate +"It's %{%A, the %e of %B%}, %Y. %N%nCelebrate %H" 26 9 1995 +.br +It's Prickle-Prickle, the 50th of Bureaucracy, 3161. +.br +Celebrate Bureflux +.PP +% ddate +"Today's %{%A, the %e of %B%}, %Y. %N%nCelebrate %H" 29 2 1996 +.br +Today's St. Tib's Day, 3162. +.br + +.SH BUGS + +.B ddate(1) +will produce undefined behavior if asked to produce the date for St. Tib's +day and its format string does not contain the St. Tib's Day delimiters +%{ and %}. + +.SH NOTE + +After `X-Day' passed without incident, the Church of the SubGenius +declared that it had got the year upside down - X-Day is actually in 8661 AD +rather than 1998 AD. Thus, the True X-Day is Cfn 40, 9827. + +.SH AUTHOR +.nh +Original program by Druel the Chaotic aka Jeremy Johnson (mpython@gnu.ai.mit.edu) +.br +Major rewrite by Lee H:. O:. Smith, KYTP, aka Andrew Bulhak (acb@dev.null.org) +.br +Gregorian B.C.E. dates fixed by Chaplain Nyan the Wiser, aka Dan Dart (ntw@dandart.co.uk) +.br +Five tons of flax. + +.SH DISTRIBUTION POLICY + +Public domain. All rites reversed. + +.SH SEE ALSO + +date(1), +.br +http://www.subgenius.com/ +.br +Malaclypse the Younger, +.I "Principia Discordia, Or How I Found Goddess And What I Did To Her When I Found Her" + +.SH AVAILABILITY +The ddate command is available from https://github.com/bo0ts/ddate. diff --git a/port/ddate/ddate.c b/port/ddate/ddate.c new file mode 100644 index 00000000..c0a6bf37 --- /dev/null +++ b/port/ddate/ddate.c @@ -0,0 +1,399 @@ +/* $ DVCS ID: $jer|,523/lhos,KYTP!41023161\b"?" <<= DO NOT DELETE! */ + +/* ddate.c .. converts boring normal dates to fun Discordian Date -><- + written the 65th day of The Aftermath in the Year of Our Lady of + Discord 3157 by Druel the Chaotic aka Jeremy Johnson aka + mpython@gnu.ai.mit.edu + 28 Sever St Apt #3 + Worcester MA 01609 + + and I'm not responsible if this program messes anything up (except your + mind, I'm responsible for that) + + (k) YOLD 3161 and all time before and after. + Reprint, reuse, and recycle what you wish. + This program is in the public domain. Distribute freely. Or not. + + Majorly hacked, extended and bogotified/debogotified on + Sweetmorn, Bureaucracy 42, 3161 YOLD, by Lee H:. O:. Smith, KYTP, + aka Andrew Bulhak, aka acb@dev.null.org + + Slightly hackled and crackled by a sweet firey stove on + Boomtime, the 53rd day of Bureaucracy in the YOLD 3179, + by Chaplain Nyan the Wiser, aka Dan Dart, aka ntw@dandart.co.uk + + and I'm not responsible if this program messes anything up (except your + mind, I'm responsible for that) (and that goes for me as well --lhos) + + Version history: + Bureflux 3161: First release of enhanced ddate with format strings + 59 Bcy, 3161: PRAISE_BOB and KILL_BOB options split, other minor + changes. + 53 Bcy, 3179: Fixed gregorian date conversions less than YOLD 1167 + + 1999-02-22 Arkadiusz Miskiewicz <misiek@pld.ORG.PL> + - added Native Language Support + + 2000-03-17 Burt Holzman <holzman+ddate@gmail.com> + - added range checks for dates + + 2014-06-07 William Woodruff <william@tuffbizz.com> + - removed gettext dependent locale code + + 15th of Confusion, 3180: + - call out adherents of the wrong fruit + + FIVE TONS OF FLAX +*/ + +/* configuration options VVVVV READ THIS!!! */ + +/* If you wish ddate(1) to print the date in the same format as Druel's + * original ddate when called in immediate mode, define OLD_IMMEDIATE_FMT + */ + +#define OLD_IMMEDIATE_FMT + +/* If you wish to use the US format for aneristic dates (m-d-y), as opposed to + * the Commonwealth format, define US_FORMAT. + */ + +/* #define US_FORMAT */ + +/* If you are ideologically, theologically or otherwise opposed to the + * Church of the SubGenius and do not wish your copy of ddate(1) to contain + * code for counting down to X-Day, undefine KILL_BOB */ + +#define KILL_BOB 13013 + +/* If you wish ddate(1) to contain SubGenius slogans, define PRAISE_BOB */ + +/*#define PRAISE_BOB 13013*/ + +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include <stdio.h> + + +// work around includes and defines from formerly c.h +#ifndef ARRAY_SIZE +# define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) +#endif + +/* &a[0] degrades to a pointer: a different type from an array */ +# define __must_be_array(a) \ + BUILD_BUG_ON_ZERO(__builtin_types_compatible_p(__typeof__(a), __typeof__(&a[0]))) + +#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); })) + +/* work around hacks for standalone package */ +#define PACKAGE "ddate" +#define PACKAGE_STRING "Stand Alone" + +#ifndef __GNUC__ +#define inline /* foo */ +#endif + +#ifdef KILL_BOB +int xday_countdown(int yday, int year); +#endif + + +/* string constants */ + +char *day_long[5] = { + "Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle", "Setting Orange" +}; + +char *day_short[5] = {"SM","BT","PD","PP","SO"}; + +char *season_long[5] = { + "Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath" +}; + +char *season_short[5] = {"Chs", "Dsc", "Cfn", "Bcy", "Afm"}; + +char *holyday[5][2] = { + { "Mungday", "Chaoflux" }, + { "Mojoday", "Discoflux" }, + { "Syaday", "Confuflux" }, + { "Zaraday", "Bureflux" }, + { "Maladay", "Afflux" } +}; + +struct disc_time { + int season; /* 0-4 */ + int day; /* 0-72 */ + int yday; /* 0-365 */ + int year; /* 3066- */ +}; + +char *excl[] = { + "Hail Eris!", "All Hail Discordia!", "Kallisti!", "Fnord.", "Or not.", + "Wibble.", "Pzat!", "P'tang!", "Frink!", +#ifdef PRAISE_BOB + "Slack!", "Praise \"Bob\"!", "Or kill me.", +#endif /* PRAISE_BOB */ + /* randomness, from the Net and other places. Feel free to add (after + checking with the relevant authorities, of course). */ + "Grudnuk demand sustenance!", "Keep the Lasagna flying!", + "You are what you see.", + "Or is it?", "This statement is false.", + "Lies and slander, sire!", "Hee hee hee!", +#if defined(linux) || defined (__linux__) || defined (__linux) + "Hail Eris, Hack Linux!", +#elif defined(__APPLE__) + "This Fruit is not the True Fruit of Discord.", +#endif + "" +}; + +char default_fmt[] = "%{%A, %B %d%}, %Y YOLD"; +char *default_immediate_fmt= +#ifdef OLD_IMMEDIATE_FMT +"Today is %{%A, the %e day of %B%} in the YOLD %Y%N%nCelebrate %H" +#else +default_fmt +#endif +; + +#define DY(y) (y+1166) + +static inline char *ending(int i) { + return i/10==1?"th":(i%10==1?"st":(i%10==2?"nd":(i%10==3?"rd":"th"))); +} + +static inline int leapp(int i) { + return (!(DY(i)%4))&&((DY(i)%100)||(!(DY(i)%400))); +} + +/* select a random string */ +static inline char *sel(char **strings, int num) { + return(strings[random()%num]); +} + +void print(struct disc_time,char **); /* old */ +void format(char *buf, const char* fmt, struct disc_time dt); +/* read a fortune file */ +int load_fortunes(char *fn, char *delim, char** result); + +struct disc_time convert(int,int); +struct disc_time makeday(int,int,int); + +int +main (int argc, char *argv[]) { + time_t t; + struct tm *eris; + int bob,raw; + struct disc_time hastur; + char schwa[23*17], *fnord=0; + int pi; + char *progname, *p; + + progname = argv[0]; + if ((p = strrchr(progname, '/')) != NULL) + progname = p+1; + + srandom(time(NULL)); + /* do args here */ + for(pi=1; pi<argc; pi++) { + switch(argv[pi][0]) { + case '+': fnord=argv[pi]+1; break; + case '-': + switch(argv[pi][1]) { + case 'V': + printf(("%s (%s)\n"), progname, PACKAGE_STRING); + default: goto usage; + } + default: goto thud; + } + } + + thud: + if (argc-pi==3){ + int moe=atoi(argv[pi]), larry=atoi(argv[pi+1]), curly=atoi(argv[pi+2]); + hastur=makeday( +#ifdef US_FORMAT + moe,larry, +#else + larry,moe, +#endif + curly); + if (hastur.season == -1) { + printf("Invalid date -- out of range\n"); + return -1; + } + fnord=fnord?fnord:default_fmt; + } else if (argc!=pi) { + usage: + fprintf(stderr,("usage: %s [+format] [day month year]\n"), argv[0]); + exit(1); + } else { + t= time(NULL); + eris=localtime(&t); + bob=eris->tm_yday; /* days since Jan 1. */ + raw=eris->tm_year; /* years since 1980 */ + hastur=convert(bob,raw); + fnord=fnord?fnord:default_immediate_fmt; + } + format(schwa, fnord, hastur); + printf("%s\n", schwa); + + return 0; +} + +void format(char *buf, const char* fmt, struct disc_time dt) +{ + int tib_start=-1, tib_end=0; + int i, fmtlen=strlen(fmt); + char *bufptr=buf; + +/* fprintf(stderr, "format(%p, \"%s\", dt)\n", buf, fmt);*/ + + /* first, find extents of St. Tib's Day area, if defined */ + for(i=0; i<fmtlen; i++) { + if(fmt[i]=='%') { + switch(fmt[i+1]) { + case 'A': + case 'a': + case 'd': + case 'e': + if(tib_start>0) tib_end=i+1; + else tib_start=i; + break; + case '{': tib_start=i; break; + case '}': tib_end=i+1; break; + } + } + } + + /* now do the formatting */ + buf[0]=0; + + for(i=0; i<fmtlen; i++) { + if((i==tib_start) && (dt.day==-1)) { + /* handle St. Tib's Day */ + strcpy(bufptr, ("St. Tib's Day")); + bufptr += strlen(bufptr); + i=tib_end; + } else { + if(fmt[i]=='%') { + char *wibble=0, snarf[23]; + switch(fmt[++i]) { + case 'A': wibble=day_long[dt.yday%5]; break; + case 'a': wibble=day_short[dt.yday%5]; break; + case 'B': wibble=season_long[dt.season]; break; + case 'b': wibble=season_short[dt.season]; break; + case 'd': sprintf(snarf, "%d", dt.day+1); wibble=snarf; break; + case 'e': sprintf(snarf, "%d%s", dt.day+1, ending(dt.day+1)); + wibble=snarf; break; + case 'H': if(dt.day==4||dt.day==49) + wibble=holyday[dt.season][dt.day==49]; break; + case 'N': if(dt.day!=4&&dt.day!=49) goto eschaton; break; + case 'n': *(bufptr++)='\n'; break; + case 't': *(bufptr++)='\t'; break; + + case 'Y': sprintf(snarf, "%d", dt.year); wibble=snarf; break; + case '.': wibble=sel(excl, ARRAY_SIZE(excl)); + break; +#ifdef KILL_BOB + case 'X': sprintf(snarf, "%d", + xday_countdown(dt.yday, dt.year)); + wibble = snarf; break; +#endif /* KILL_BOB */ + } + if(wibble) { +/* fprintf(stderr, "wibble = (%s)\n", wibble);*/ + strcpy(bufptr, wibble); bufptr+=strlen(wibble); + } + } else { + *(bufptr++) = fmt[i]; + } + } + } + eschaton: + *(bufptr)=0; +} + +struct disc_time makeday(int imonth,int iday,int iyear) /*i for input */ +{ + struct disc_time funkychickens; + + int cal[12] = { 31,28,31,30,31,30,31,31,30,31,30,31 }; + int dayspast=0; + + memset(&funkychickens,0,sizeof(funkychickens)); + /* basic range checks */ + if (imonth < 1 || imonth > 12 || iyear == 0) { + funkychickens.season = -1; + return funkychickens; + } + if (iday < 1 || iday > cal[imonth-1]) { + if (!(imonth == 2 && iday == 29 && iyear%4 == 0 && + (iyear%100 != 0 || iyear%400 == 0))) { + funkychickens.season = -1; + return funkychickens; + } + } + + imonth--; + /* note: gregorian year 0 doesn't exist so + * add one if user specifies a year less than 0 */ + funkychickens.year= iyear+1166 + ((0 > iyear)?1:0); + while(imonth>0) { dayspast+=cal[--imonth]; } + funkychickens.day=dayspast+iday-1; + funkychickens.season=0; + if((funkychickens.year%4)==2) { + if (funkychickens.day==59 && iday==29) funkychickens.day=-1; + } + funkychickens.yday=funkychickens.day; +/* note: EQUAL SIGN...hopefully that fixes it */ + while(funkychickens.day>=73) { + funkychickens.season++; + funkychickens.day-=73; + } + return funkychickens; +} + +struct disc_time convert(int nday, int nyear) +{ struct disc_time funkychickens; + + funkychickens.year = nyear+3066; + funkychickens.day=nday; + funkychickens.season=0; + if ((funkychickens.year%4)==2) + {if (funkychickens.day==59) + funkychickens.day=-1; + else if (funkychickens.day >59) + funkychickens.day-=1; + } + funkychickens.yday=funkychickens.day; + while (funkychickens.day>=73) + { funkychickens.season++; + funkychickens.day-=73; + } + return funkychickens; + + } + +#ifdef KILL_BOB + +/* Code for counting down to X-Day, X-Day being Cfn 40, 3164 + * + * After `X-Day' passed without incident, the CoSG declared that it had + * got the year upside down --- X-Day is actually in 8661 AD rather than + * 1998 AD. + * + * Thus, the True X-Day is Cfn 40, 9827. + * + */ + +int xday_countdown(int yday, int year) { + int r=(185-yday)+(((yday<59)&&(leapp(year)))?1:0); + while(year<9827) r+=(leapp(++year)?366:365); + while(year>9827) r-=(leapp(year--)?366:365); + return r; +} + +#endif diff --git a/port/file2c/.gitignore b/port/file2c/.gitignore new file mode 100644 index 00000000..aafb358f --- /dev/null +++ b/port/file2c/.gitignore @@ -0,0 +1 @@ +file2c diff --git a/port/file2c/Makefile b/port/file2c/Makefile new file mode 100644 index 00000000..09f6b5d0 --- /dev/null +++ b/port/file2c/Makefile @@ -0,0 +1,15 @@ +PREFIX = ~/.local +MANDIR = ${PREFIX}/share/man + +file2c: + +clean: + rm -f file2c + +install: file2c file2c.1 + install -d ${PREFIX}/bin ${MANDIR}/man1 + install file2c ${PREFIX}/bin + install -m 644 file2c.1 ${MANDIR}/man1 + +uninstall: + rm -f ${PREFIX}/bin/file2c ${MANDIR}/man1/file2c.1 diff --git a/port/file2c/file2c.1 b/port/file2c/file2c.1 new file mode 100644 index 00000000..fe1fe5e7 --- /dev/null +++ b/port/file2c/file2c.1 @@ -0,0 +1,75 @@ +.\"---------------------------------------------------------------------------- +.\" "THE BEER-WARE LICENSE" (Revision 42): +.\" <phk@FreeBSD.org> wrote this file. As long as you retain this notice, you +.\" can do whatever you want with this file. If we meet some day, and you think +.\" this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp +.\" --------------------------------------------------------------------------- +.\" +.\" $FreeBSD: releng/11.2/usr.bin/file2c/file2c.1 173197 2007-10-30 17:49:00Z ru $ +.\" +.Dd March 22, 2007 +.Dt FILE2C 1 +.Os +.Sh NAME +.Nm file2c +.Nd convert file to c-source +.Sh SYNOPSIS +.Nm +.Op Fl sx +.Op Fl n Ar count +.Op Ar prefix Op Ar suffix +.Sh DESCRIPTION +The +.Nm +utility reads a file from stdin and writes it to stdout, converting each +byte to its decimal or hexadecimal representation on the fly. +The byte values are separated by a comma. +This also means that the last byte value is not followed by a comma. +By default the byte values are printed in decimal, but when the +.Fl x +option is given, the values will be printed in hexadecimal. +When +.Fl s +option is given, each line is printed with a leading tab and each comma is +followed by a space except for the last one on the line. +.Pp +If more than 70 characters are printed on the same line, that line is +ended and the output continues on the next line. +With the +.Fl n +option this can be made to happen after the specified number of +byte values have been printed. +The length of the line will not be considered anymore. +To have all the byte values printed on the same line, give the +.Fl n +option a negative number. +.Pp +A prefix and suffix strings can be printed before and after the byte values +(resp.) +If a suffix is to be printed, a prefix must also be specified. +The first non-option word is the prefix, which may optionally be followed +by a word that is to be used as the suffix. +.Pp +This program is typically used to embed binary files into C source files. +The prefix is used to define an array type and the suffix is used to end +the C statement. +The +.Fl n , s +and +.Fl x +options are useful when the binary data represents a bitmap and the output +needs to remain readable and/or editable. +Fonts, for example, are a good example of this. +.Sh EXAMPLES +The command: +.Bd -literal -offset indent +date | file2c 'const char date[] = {' ',0};' +.Ed +.Pp +will produce: +.Bd -literal -offset indent +const char date[] = { +83,97,116,32,74,97,110,32,50,56,32,49,54,58,50,56,58,48,53, +32,80,83,84,32,49,57,57,53,10 +,0}; +.Ed diff --git a/port/file2c/file2c.c b/port/file2c/file2c.c new file mode 100644 index 00000000..cff7f602 --- /dev/null +++ b/port/file2c/file2c.c @@ -0,0 +1,92 @@ +/* + * ---------------------------------------------------------------------------- + * "THE BEER-WARE LICENSE" (Revision 42): + * <phk@FreeBSD.org> wrote this file. As long as you retain this notice you + * can do whatever you want with this stuff. If we meet some day, and you think + * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp + * ---------------------------------------------------------------------------- + */ + +#include <sys/cdefs.h> +//__FBSDID("$FreeBSD: releng/11.2/usr.bin/file2c/file2c.c 200462 2009-12-13 03:14:06Z delphij $"); + +#include <limits.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +static void +usage(void) +{ + + fprintf(stderr, "usage: %s [-sx] [-n count] [prefix [suffix]]\n", + "file2c"); + exit(1); +} + +int +main(int argc, char *argv[]) +{ + int c, count, linepos, maxcount, pretty, radix; + + maxcount = 0; + pretty = 0; + radix = 10; + while ((c = getopt(argc, argv, "n:sx")) != -1) { + switch (c) { + case 'n': /* Max. number of bytes per line. */ + maxcount = strtol(optarg, NULL, 10); + break; + case 's': /* Be more style(9) comliant. */ + pretty = 1; + break; + case 'x': /* Print hexadecimal numbers. */ + radix = 16; + break; + case '?': + default: + usage(); + } + } + argc -= optind; + argv += optind; + + if (argc > 0) + printf("%s\n", argv[0]); + count = linepos = 0; + while((c = getchar()) != EOF) { + if (count) { + putchar(','); + linepos++; + } + if ((maxcount == 0 && linepos > 70) || + (maxcount > 0 && count >= maxcount)) { + putchar('\n'); + count = linepos = 0; + } + if (pretty) { + if (count) { + putchar(' '); + linepos++; + } else { + putchar('\t'); + linepos += 8; + } + } + switch (radix) { + case 10: + linepos += printf("%d", c); + break; + case 16: + linepos += printf("0x%02x", c); + break; + default: + abort(); + } + count++; + } + putchar('\n'); + if (argc > 1) + printf("%s\n", argv[1]); + return (0); +} diff --git a/port/wcwidth/.gitignore b/port/wcwidth/.gitignore new file mode 100644 index 00000000..132e8098 --- /dev/null +++ b/port/wcwidth/.gitignore @@ -0,0 +1,3 @@ +*.o +libwcwidth.dylib +wcfix diff --git a/port/wcwidth/COPYRIGHT b/port/wcwidth/COPYRIGHT new file mode 100644 index 00000000..e6472371 --- /dev/null +++ b/port/wcwidth/COPYRIGHT @@ -0,0 +1,190 @@ +musl as a whole is licensed under the following standard MIT license: + +---------------------------------------------------------------------- +Copyright © 2005-2020 Rich Felker, et al. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +---------------------------------------------------------------------- + +Authors/contributors include: + +A. Wilcox +Ada Worcester +Alex Dowad +Alex Suykov +Alexander Monakov +Andre McCurdy +Andrew Kelley +Anthony G. Basile +Aric Belsito +Arvid Picciani +Bartosz Brachaczek +Benjamin Peterson +Bobby Bingham +Boris Brezillon +Brent Cook +Chris Spiegel +Clément Vasseur +Daniel Micay +Daniel Sabogal +Daurnimator +David Carlier +David Edelsohn +Denys Vlasenko +Dmitry Ivanov +Dmitry V. Levin +Drew DeVault +Emil Renner Berthing +Fangrui Song +Felix Fietkau +Felix Janda +Gianluca Anzolin +Hauke Mehrtens +He X +Hiltjo Posthuma +Isaac Dunham +Jaydeep Patil +Jens Gustedt +Jeremy Huntwork +Jo-Philipp Wich +Joakim Sindholt +John Spencer +Julien Ramseier +Justin Cormack +Kaarle Ritvanen +Khem Raj +Kylie McClain +Leah Neukirchen +Luca Barbato +Luka Perkov +M Farkas-Dyck (Strake) +Mahesh Bodapati +Markus Wichmann +Masanori Ogino +Michael Clark +Michael Forney +Mikhail Kremnyov +Natanael Copa +Nicholas J. Kain +orc +Pascal Cuoq +Patrick Oppenlander +Petr Hosek +Petr Skocik +Pierre Carrier +Reini Urban +Rich Felker +Richard Pennington +Ryan Fairfax +Samuel Holland +Segev Finer +Shiz +sin +Solar Designer +Stefan Kristiansson +Stefan O'Rear +Szabolcs Nagy +Timo Teräs +Trutz Behn +Valentin Ochs +Will Dietz +William Haddon +William Pitcock + +Portions of this software are derived from third-party works licensed +under terms compatible with the above MIT license: + +The TRE regular expression implementation (src/regex/reg* and +src/regex/tre*) is Copyright © 2001-2008 Ville Laurikari and licensed +under a 2-clause BSD license (license text in the source files). The +included version has been heavily modified by Rich Felker in 2012, in +the interests of size, simplicity, and namespace cleanliness. + +Much of the math library code (src/math/* and src/complex/*) is +Copyright © 1993,2004 Sun Microsystems or +Copyright © 2003-2011 David Schultz or +Copyright © 2003-2009 Steven G. Kargl or +Copyright © 2003-2009 Bruce D. Evans or +Copyright © 2008 Stephen L. Moshier or +Copyright © 2017-2018 Arm Limited +and labelled as such in comments in the individual source files. All +have been licensed under extremely permissive terms. + +The ARM memcpy code (src/string/arm/memcpy_el.S) is Copyright © 2008 +The Android Open Source Project and is licensed under a two-clause BSD +license. It was taken from Bionic libc, used on Android. + +The implementation of DES for crypt (src/crypt/crypt_des.c) is +Copyright © 1994 David Burren. It is licensed under a BSD license. + +The implementation of blowfish crypt (src/crypt/crypt_blowfish.c) was +originally written by Solar Designer and placed into the public +domain. The code also comes with a fallback permissive license for use +in jurisdictions that may not recognize the public domain. + +The smoothsort implementation (src/stdlib/qsort.c) is Copyright © 2011 +Valentin Ochs and is licensed under an MIT-style license. + +The x86_64 port was written by Nicholas J. Kain and is licensed under +the standard MIT terms. + +The mips and microblaze ports were originally written by Richard +Pennington for use in the ellcc project. The original code was adapted +by Rich Felker for build system and code conventions during upstream +integration. It is licensed under the standard MIT terms. + +The mips64 port was contributed by Imagination Technologies and is +licensed under the standard MIT terms. + +The powerpc port was also originally written by Richard Pennington, +and later supplemented and integrated by John Spencer. It is licensed +under the standard MIT terms. + +All other files which have no copyright comments are original works +produced specifically for use as part of this library, written either +by Rich Felker, the main author of the library, or by one or more +contibutors listed above. Details on authorship of individual files +can be found in the git version control history of the project. The +omission of copyright and license comments in each file is in the +interest of source tree size. + +In addition, permission is hereby granted for all public header files +(include/* and arch/*/bits/*) and crt files intended to be linked into +applications (crt/*, ldso/dlstart.c, and arch/*/crt_arch.h) to omit +the copyright notice and permission notice otherwise required by the +license, and to use these files without any requirement of +attribution. These files include substantial contributions from: + +Bobby Bingham +John Spencer +Nicholas J. Kain +Rich Felker +Richard Pennington +Stefan Kristiansson +Szabolcs Nagy + +all of whom have explicitly granted such permission. + +This file previously contained text expressing a belief that most of +the files covered by the above exception were sufficiently trivial not +to be subject to copyright, resulting in confusion over whether it +negated the permissions granted in the license. In the spirit of +permissive licensing, and of not having licensing issues being an +obstacle to adoption, that text has been removed. diff --git a/port/wcwidth/Makefile b/port/wcwidth/Makefile new file mode 100644 index 00000000..50faa653 --- /dev/null +++ b/port/wcwidth/Makefile @@ -0,0 +1,27 @@ +PREFIX ?= ~/.local + +OBJS = wcwidth.o wcswidth.o + +all: libwcwidth.dylib wcfix + +libwcwidth.dylib: ${OBJS} + ${CC} -dynamiclib ${LDFLAGS} ${OBJS} -o $@ + +wcwidth.o: nonspacing.h wide.h + +.SUFFIXES: .in + +.in: + sed 's|%%PREFIX%%|${PREFIX}|g' $< > $@ + chmod a+x $@ + +clean: + rm -f libwcwidth.dylib wcfix ${OBJS} + +install: libwcwidth.dylib wcfix + install -d ${PREFIX}/lib ${PREFIX}/bin + install -m 644 libwcwidth.dylib ${PREFIX}/lib + install wcfix ${PREFIX}/bin + +uninstall: + rm -f ${PREFIX}/lib/libwcwidth.dylib ${PREFIX}/bin/wcfix diff --git a/port/wcwidth/nonspacing.h b/port/wcwidth/nonspacing.h new file mode 100644 index 00000000..5d05a3d1 --- /dev/null +++ b/port/wcwidth/nonspacing.h @@ -0,0 +1,89 @@ +16,16,16,18,19,20,21,22,23,24,25,26,27,28,29,30,31,16,16,32,16,16,16,33,34,35, +36,37,38,39,16,16,40,16,16,16,16,16,16,16,16,16,16,16,41,42,16,16,43,16,16,16, +16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, +16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, +16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, +16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, +16,16,16,16,16,16,16,16,16,16,44,16,45,46,47,48,16,16,16,16,16,16,16,16,16,16, +16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, +16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, +16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,49,16,16,50, +51,16,52,53,54,16,16,16,16,16,16,55,16,16,56,16,57,58,59,60,61,62,63,64,65,66, +67,68,16,69,70,71,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, 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file mode 100644 index 00000000..832c83d6 --- /dev/null +++ b/port/wcwidth/wcfix.in @@ -0,0 +1,7 @@ +#!/bin/sh +set -eu + +export DYLD_FORCE_FLAT_NAMESPACE=1 +export DYLD_INSERT_LIBRARIES=%%PREFIX%%/lib/libwcwidth.dylib + +exec "$@" diff --git a/port/wcwidth/wcswidth.c b/port/wcwidth/wcswidth.c new file mode 100644 index 00000000..5c8a5a4d --- /dev/null +++ b/port/wcwidth/wcswidth.c @@ -0,0 +1,8 @@ +#include <wchar.h> + +int wcswidth(const wchar_t *wcs, size_t n) +{ + int l=0, k=0; + for (; n-- && *wcs && (k = wcwidth(*wcs)) >= 0; l+=k, wcs++); + return (k < 0) ? k : l; +} diff --git a/port/wcwidth/wcwidth.c b/port/wcwidth/wcwidth.c new file mode 100644 index 00000000..36256a53 --- /dev/null +++ b/port/wcwidth/wcwidth.c @@ -0,0 +1,29 @@ +#include <wchar.h> + +static const unsigned char table[] = { +#include "nonspacing.h" +}; + +static const unsigned char wtable[] = { +#include "wide.h" +}; + +int wcwidth(wchar_t wc) +{ + if (wc < 0xffU) + return (wc+1 & 0x7f) >= 0x21 ? 1 : wc ? -1 : 0; + if ((wc & 0xfffeffffU) < 0xfffe) { + if ((table[table[wc>>8]*32+((wc&255)>>3)]>>(wc&7))&1) + return 0; + if ((wtable[wtable[wc>>8]*32+((wc&255)>>3)]>>(wc&7))&1) + return 2; + return 1; + } + if ((wc & 0xfffe) == 0xfffe) + return -1; + if (wc-0x20000U < 0x20000) + return 2; + if (wc == 0xe0001 || wc-0xe0020U < 0x5f || wc-0xe0100U < 0xef) + return 0; + return 1; +} diff --git a/port/wcwidth/wide.h b/port/wcwidth/wide.h new file mode 100644 index 00000000..e403c9a5 --- /dev/null +++ b/port/wcwidth/wide.h @@ -0,0 +1,65 @@ +16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,18,16,16,16,16,16,16,16,16, +16,16,16,16,16,16,16,16,16,19,16,20,21,22,16,16,16,23,16,16,24,25,26,27,28,17, +17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,29, +17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17, +17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17, 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a/tests/filters/dump.lua b/tests/filters/dump.lua deleted file mode 100644 index 1f15c931..00000000 --- a/tests/filters/dump.lua +++ /dev/null @@ -1,17 +0,0 @@ -function filter_open(...) - buffer = "" - for i = 1, select("#", ...) do - buffer = buffer .. select(i, ...) .. " " - end -end - -function filter_close() - html(buffer) - return 0 -end - -function filter_write(str) - buffer = buffer .. string.upper(str) -end - - diff --git a/txt/.notemap b/txt/.notemap new file mode 100644 index 00000000..acfe44ab --- /dev/null +++ b/txt/.notemap @@ -0,0 +1,3 @@ +5347bbff-b124-432a-a67e-5d90fa34d0d4 books.txt +9efa92ef-a8c0-4fa6-8a2a-13315992162b music.txt +2d3c58f2-a193-4ff5-b79f-fd430f80eb64 shows.txt diff --git a/txt/books.txt b/txt/books.txt new file mode 100644 index 00000000..44b3ad66 --- /dev/null +++ b/txt/books.txt @@ -0,0 +1,129 @@ +[ 2021 ] + + 12. ★★☆ Margaret Atwood, The Year of the Flood + 11. ★★☆ Charlie Jane Anders, All the Birds in the Sky + 10. ★☆☆ Margaret Atwood, The Penelopiad + 9. ★★★ Alix E. Harrow, The Once and Future Witches + 8. ★★☆ Mary Robinette Kowal, The Relentless Moon + 7. ★☆☆ Connie Willis, Bellwether + 6. ★★☆ Carmen Maria Machado, Her Body and Other Parties + 5. ★★☆ N. K. Jemisin, The City We Became + 4. ★★★ Martha Wells, Network Effect + 3. ★★☆ Nnedi Okorafor, Binti + 2. ★★☆ Kai Cheng Thom, I Hope We Choose Love + 1. ★★☆ Tade Thompson, The Rosewater Redemption + +[ 2020 ] + + 19. ★★★ N. K. Jemisin, The Awakened Kingdom + 18. ★★☆ N. K. Jemisin, The Kingdom of Gods + 17. ★★☆ N. K. Jemisin, The Broken Kingdoms + 16. ★★☆ Ann Leckie, Ancillary Justice + 15. ★★☆ Madeline Miller, The Song of Achilles + 14. ★★☆ N. K. Jemisin, The Hundred Thousand Kingdoms + 13. ★★☆ Annalee Newitz, Autonomous + 12. ★☆☆ Tade Thompson, The Rosewater Insurrection + 11. ★★☆ Alix E. Harrow, The Ten Thousand Doors of January + 10. ★★☆ N. K. Jemisin, The Stone Sky + 9. ★★★ Kai Cheng Thom, Fierce Femmes and Notorious Liars + 8. ★☆☆ Amal El-Mohtar & Max Gladstone, This Is How You Lose the Time War + 7. ★★★ N. K. Jemisin, The Obelisk Gate + 6. ★★★ Becky Chambers, To Be Taught, If Fortunate + 5. ★★★ Annalee Newitz, The Future of Another Timeline + 4. ★★☆ Rivers Solomon, The Deep + 3. ★★☆ ed. Hope Nicholson, Love Beyond Body, Space & Time + 2. ★★☆ Tade Thompson, Rosewater + 1. ★★★ Meg Elison, The Book of Flora + +[ 2019 ] + + 42. ★★★ Meg Elison, The Book of Etta + 41. ★★☆ Martha Wells, Exit Strategy + 40. ★★☆ Martha Wells, Artificial Condition + 39. ★★☆ N. K. Jemisin, The Fifth Season + 38. ★★☆ Martha Wells, Rogue Protocol + 37. ★★☆ Yoon Ha Lee, Ninefox Gambit + 36. ★★★ Rebecca Makkai, The Great Believers + 35. ★★☆ Meg Elison, The Book of the Unnamed Midwife + 34. ★★☆ Martha Wells, All Systems Red + 33. ★★☆ Nnedi Okorafor, The Book of Phoenix + 32. ★★☆ JY Yang, The Red Threads of Fortune + 31. ★★☆ JY Yang, The Black Tides of Heaven + 30. ★☆☆ Rebecca Roanhorse, Trail of Lightning + 29. ★☆☆ Jo Walton, The Just City + 28. ★★★ Arkady Martine, A Memory Called Empire + 27. ★★☆ Mary Robinette Kowal, The Fated Sky + 26. ★★★ Becky Chambers, Record of a Spaceborn Few + 25. ★★☆ Mary Robinette Kowal, The Calculating Stars + 24. ★★☆ Octavia E. Butler, Imago + 23. ★★☆ Octavia E. Butler, Kindred + 22. ★★☆ Octavia E. Butler, Adulthood Rites + 21. ★★★ Octavia E. Butler, Wild Seed + 20. ★★☆ Octavia E. Butler, Parable of the Talents + 19. ★★☆ Jeff VanderMeer, Acceptance + 18. ★★★ Becky Chambers, A Closed and Common Orbit + 17. ★★☆ Octavia E. Butler, Dawn + 16. ★★☆ Jeff VanderMeer, Authority + 15. ★★☆ Octavia E. Butler, Parable of the Sower + 14. ★★☆ C. A. Higgins, Lightless + 13. ★☆☆ Alfred Bester, The Demolished Man + 12. ★★★ Karin Tidbeck, Amatka + 11. ★☆☆ Catherynne M. Valente, Space Opera + 10. ★★☆ Rivers Solomon, An Unkindness of Ghosts + 9. ★★★ Becky Chambers, The Long Way to a Small Angry Planet + 8. ★★☆ Emily St. John Mandel, Station Eleven + 7. ★★★ Douglas Adams, Dirk Gently's Holistic Detective Agency + 6. ★★★ Octavia E. Butler, Fledgling + 5. ★★★ Jeff VanderMeer, Annihilation + 4. ★★☆ Alfred Bester, The Stars My Destination + 3. ★☆☆ Samuel R. Delany, The Einstein Intersection + 2. ★★★ Octavia E. Butler, Mind of My Mind + 1. ★☆☆ Robert A. Heinlein, Waldo & Magic, Inc. + +[ 2018 ] + + 25. ★★★ Douglas Adams, The Long Dark Tea-Time of the Soul + 24. ★★☆ Khaled Hosseini, A Thousand Splendid Suns + 23. ★★☆ Nathan Altice, I Am Error + 22. ★★★ Ruth Ozeki, A Tale for the Time Being + 21. ★☆☆ Arthur C. Clarke, Earthlight + 20. ★★★ Terry Pratchett & Neil Gaiman, Good Omens + 19. ★☆☆ Robert A. Heinlein, Starship Troopers + 18. ★★☆ Liu Cixin, The Three-Body Problem + 17. ★★☆ Robert A. Heinlein, Revolt in 2100 + 16. ★★☆ ed. Robert A. Heinlein, Tomorrow, the Stars + 15. ★★☆ Robert A. Heinlein, Assignment in Eternity + 14. ★☆☆ Robert A. Heinlein, The Rolling Stones + 13. ★★☆ Robert A. Heinlein, Starman Jones + 12. ★☆☆ Robert A. Heinlein, Space Cadet + 11. ★☆☆ Robert A. Heinlein, Farmer in the Sky + 10. ★★☆ Robert A. Heinlein, Between Planets + 9. ★★☆ Robert A. Heinlein, Red Planet + 8. ★☆☆ Robert A. Heinlein, Rocket Ship Galileo + 7. ★☆☆ Robert A. Heinlein, Sixth Column + 6. ★☆☆ Robert A. Heinlein, Beyond This Horizon + 5. ★★☆ Robert A. Heinlein, Orphans of the Sky + 4. ★★☆ Tracy Kidder, The Soul of a New Machine + 3. ★★★ James Alan Gardner, Ascending + 2. ★★★ Anne Frank, The Diary of a Young Girl + 1. ★★★ Harper Lee, Go Set a Watchman + +[ 2017 ] + + 1. ★★★ James Alan Gardner, Expendable + +[ ... ] + + • ★★★ Harper Lee, To Kill a Mockingbird + • ★★★ Douglas Adams, The Hitchhiker's Guide to the Galaxy + • ★★★ Douglas Adams, The Restaurant at the End of the Universe + • ★★☆ Douglas Adams, Life, the Universe and Everything + • ★★★ Douglas Adams, So Long, and Thanks for All the Fish + • ★★☆ Douglas Adams, Mostly Harmless + • ★☆☆ Eoin Colfer, And Another Thing... + • ★★★ Margaret Atwood, The Handmaid's Tale + • ★★☆ Kazuo Ishiguro, Never Let Me Go + • ★★★ Philip Pullman, The Goldan Compass + • ★★★ Philip Pullman, The Subtle Knife + • ★★★ Philip Pullman, The Amber Spyglass + • ★★★ William Goldman, The Princess Bride diff --git a/txt/music.txt b/txt/music.txt new file mode 100644 index 00000000..cd3705c4 --- /dev/null +++ b/txt/music.txt @@ -0,0 +1,285 @@ +Feist — I Feel It All +<https://youtu.be/g-1Gb2rxzlk> + +The Blow — "Come On Petunia" +<https://youtu.be/MO1HSfzK1Ns> + +Black Country, New Road — Sunglasses +<https://youtu.be/UAZhzi9cpkc> + +Mitski, Xiu Xiu — Between the Breaths +<https://youtu.be/HnhTkFl5Imw> + +Black Dresses — CREEP U +<https://youtu.be/w9RSZmltcVI> + +BACKXWASH — DONT COME TO THE WOODS +<https://youtu.be/7ZcJsWyGbOw> + +William Bonney — See Ya Later +<https://youtu.be/-uCUlvUlr9s> + +Four Tet — Hands +<https://youtu.be/ojZoQbRt1tc> + +Buffy Sainte-Marie — Darling Don't Cry + +LINGUA IGNOTA — DO YOU DOUBT ME TRAITOR +<https://youtu.be/M1ZweG__q-w> + +Lizzo — Truth Hurts +<https://youtu.be/P00HMxdsVZI> + +Hobo Johnson and The Lovemakers — Tiny Desk Concert +<https://youtu.be/A8a2EosJIbM> + +Poppy — Concrete +<https://youtu.be/WwoGhpYdebQ> + +Kim Petras — Do Me +<https://youtu.be/LShK0Yhd964> + +Kim Petras — Heart to Break +<https://youtu.be/5CPeHQHAQyo> + +Anomie — Avorter n'est pas tuer +<https://youtu.be/W1iGXRDeZf4> + +Zhaoze — Birds Contending +<https://zhaoze.bandcamp.com/album/birds-contending> + +Colin Stetson — Reborn +<https://youtu.be/MVnSFj6XQZY> + +Holly Herndon — Frontier +<https://youtu.be/rvNqNgHAEys> + +Bleachers — Tiny Desk Concert +<https://youtu.be/QCtkkX2f18M> + +Girlpool — Tiny Desk Concert +<https://youtu.be/VNM8Tg9pvDU> + +Daughters — You Won't Get What You Want +<https://daughters.bandcamp.com/album/you-wont-get-what-you-want> + +La Dispute — FULTON STREET I +<https://ladispute.bandcamp.com/track/fulton-street-i> + +KASHIWA Daisuke — Stella +<https://youtu.be/ei7cdynwRMA> + +Jeff Wayne — The Eve of the War +<https://youtu.be/6YwFvmnbj3E> + +Julia Holter — I Shall Love 2 +<https://youtu.be/k5uwPaCvbhA> + +Chromatics — Running Up That Hill +<https://youtu.be/Mgv88ZLi6LY> + +Low — Double Negative +<https://lowtheband.bandcamp.com/album/double-negative> + +Rival Consoles — Helios +<https://youtu.be/T8n-XC_2a-k> + +Tiffany — I Think We're Alone Now +<https://youtu.be/w6Q3mHyzn78> + +Pulp — Common People +<https://youtu.be/yuTMWgOduFM> + +XTC — Making Plans for Nigel +<https://youtu.be/gZjZBCZWxpg> + +New Order — Temptation +<https://youtu.be/xxDv_RTdLQo> + +Street Sects — In for a World of Hurt +<https://streetsects.bandcamp.com/track/in-for-a-world-of-hurt> + +New Order — Temptation +<https://youtu.be/xxDv_RTdLQo> + +Blondie — Heart of Glass +<https://youtu.be/fWPhhlKHM80> + +Suuns — Watch You, Watch Me +<https://suuns.bandcamp.com/track/watch-you-watch-me> + +Neckbeard Deathcamp — White Nationalism is for Basement Dwelling Losers +<https://neckbearddeathcamp.bandcamp.com/album/white-nationalism-is-for-basement-dwelling-losers> + +rook — shed blood +<https://rooksfeather.bandcamp.com/album/shed-blood> + +SOPHIE — OIL OF EVERY PEARL'S UN-INSIDES +<http://smarturl.it/SOPHIEALBUM> + +Rosetta — Utopioid +<https://theanaesthete.bandcamp.com/album/utopioid> + +Desire — Under Your Spell +<https://youtu.be/9K7rmxjk5RQ> + +Broken Social Scene — Anthems for a Seventeen-Year Old Girl +<https://youtu.be/DDqNL0js0iU> + +Shinsei Kamattechan — Yuugure no tori +<https://youtu.be/sUW4dDWiz-A> + +Petite Meller — The Flute +<https://youtu.be/BLwgeV7dXOI> + +King Gizzard and the Lizard Wizard — Flying Microtonal Banana +<https://youtu.be/D0BsgJxw208> + +rook&nomie — DAYDREAM +<https://youtu.be/00TdaTffFeY> + +Spiritualized — Ladies and Gentlemen We Are Floating in Space +<https://youtu.be/p47V3w4m1yg> + +Street Sects — End Position +<https://streetsects.bandcamp.com/album/end-position-2> + +Converge — The Dusk in Us +<https://convergecult.bandcamp.com/album/the-dusk-in-us> + +St. Vincent — MASSEDUCTION + +Godspeed You! Black Emperor — Undoing a Luciferian Towers +<https://godspeedyoublackemperor.bandcamp.com/track/undoing-a-luciferian-towers> + +Florist — Tiny Desk Concert +<https://youtu.be/WbyyxIZ02Zs> + +CHVRCHES — Tiny Desk Concert +<https://youtu.be/haunJARHPm4> + +Aurora — Tiny Desk Concert +<https://youtu.be/evBgLWQwAFA> + +Joy Division — Atmosphere +<https://youtu.be/1EdUjlawLJM> + +Underworld — Born Slippy +<https://youtu.be/iTFrCbQGyvM> + +Converge — I Can Tell You About Pain +<https://convergecult.bandcamp.com/album/i-can-tell-you-about-pain> + +CocoRosie — Lost Girls +<https://youtu.be/aRa-SlftLQo> + +FAUVE — Blizzard +<https://youtu.be/HMpmedi_pH4> + +FAUVE — Nuits Fauves +<https://youtu.be/cwaAppsy5yo> + +Sarin — House of Leaves +<https://sarin.bandcamp.com/track/house-of-leaves-split-w-guiltfeeder> + +Chromatics — Shadow +<https://youtu.be/IGUboLZx3Tk> + +Arcade Fire — Creature Comfort +<https://youtu.be/xzwicesJQ7E> + +Arcade Fire — Everything Now +<https://youtu.be/zC30BYR3CUk> + +Ed Schrader's Music Beat — Sermon + +Jessica Moss — Pools of Light + +Death Grips — Steroids (Crouching Tiger Hidden Gabber Megamix) +<https://youtu.be/JUTKTk60aGk> + +Saltland — A Common Truth + +Colin Stetson — All This I Do for Glory +<https://colinstetson.bandcamp.com/album/all-this-i-do-for-glory> + +Xiu Xiu — Forget +<https://youtu.be/ywRzfwA75pY> + +Arca — Arca + +Joni Void — Dissociation (Kyla's Song) +<http://cstrecords.com/cst125/> + +Do Make Say Think — Bound and Boundless +<http://cstrecords.com/cst120/> + +The Body Lovers / The Body Haters + +Unwound — Leaves Turn Inside You + +Xiu Xiu — Fabulous Muscles + +Xiu Xiu — A Promise + +Saltland — Light of Mercy +<http://cstrecords.com/saltland-releases-new-single-light-of-mercy/> + +Jessica Moss — Glaciers I (Pt I) +<http://cstrecords.com/cst124/> + +BNNY RBBT — Big World +<http://www.bnnyrbbt.fans> + +Woman is the Earth — Depths +<https://womanistheearth.bandcamp.com/album/depths> + +Saltland — I Only Wish This For You +<http://cstrecords.com/cst123/> + +Sun Kil Moon — Benji +<https://youtu.be/UtndQzCUEY4> + +Neil Cicierega — Mouth Moods +<http://www.neilcic.com/mouthmoods/> + +Those Who Walk Away — "First Degraded Rhythm" + "First Partially Recollected Conversation" +<http://cstrecords.com/cst122/> + +Dan Smith — Some Tunes +<https://thedancemyth.bandcamp.com/album/some-tunes> + +Avec le soleil sortant de sa bouche — Pas pire pop, I Love You So Much + +Arcade Fire — I Give You Power +<https://youtu.be/f6jma9VQEls> + +Xiu Xiu — Jenny GoGo +<https://youtu.be/WMT6MsA3ut8> + +Kero Kero Bonito — Fish Bowl +<https://youtu.be/FY-CjOJCjJE> + +Avec le soleil sortant de sa bouche — Alizé et Margaret D. Midi moins le quart. Sur la plage, un palmier ensanglanté +<http://cstrecords.com/cst121/> + +G.L.O.S.S. — Trans Day of Revenge +<https://girlslivingoutsidesocietysshit.bandcamp.com/releases> + +Joy Division — Love Will Tear Us Apart +<https://youtu.be/zuuObGsB0No> + +Xiu Xiu — Honeysuckle +<https://youtu.be/hYKGR8Er4vM> + +Xiu Xiu — Ceremony +<https://youtu.be/95ms8A2XJY0> + +Xiu Xiu — I Luv the Valley Oh +<https://youtu.be/dztURk0_DOg> + +Porter Robinson & Madeon — Shelter +<https://youtu.be/fzQ6gRAEoy0> + +Julien Baker — Tiny Desk Concert +<https://youtu.be/tADWPTqR_4A> diff --git a/txt/plan.7 b/txt/plan.7 new file mode 100644 index 00000000..f861d395 --- /dev/null +++ b/txt/plan.7 @@ -0,0 +1,26 @@ +.Dd March 10, 2021 +.Dt PLAN 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm plan +.Nd possible future projects +. +.Sh DESCRIPTION +. +.Ss feed reader for IMAP +.Bl -bullet -compact +.It +why use a separate reader +when you already have a mail client? +.It +feeds go into IMAP mailboxes +.It +feed entries turn into internet messages +.It +read/unread state like normal mail +.It +reply or forward feed entries as email +.It +all state in IMAP, easy to cron +.El diff --git a/txt/shows.txt b/txt/shows.txt new file mode 100644 index 00000000..62e6a071 --- /dev/null +++ b/txt/shows.txt @@ -0,0 +1,32 @@ +2020-01-23 (La Sala Rossa) Secondsight, BIG|BRAVE +2019-12-10 (Casa del Popolo) meth, Street Sects +2019-06-22 (Casa del Popolo) Persons Unknown, Palissade, Police des Moeurs, Blu Anxiety +2019-06-22 (Bar Le Ritz) Cloakroom, Pelican +2019-06-21 (La Vitrola) Leash Aggression, CPU Rave, Vitex, Pinocchio +2019-06-20 (Casa del Popolo) Beep Test, Liar//Lier, Wetware +2019-06-18 (Casa del Popolo) Nomadic War Machine; it foot, it ears; Wendy Eisenberg +2019-06-17 (La Sala Rossa) SaskPWR, Lubomyr Melnyk, Architek Percussion (Nicole Lizée) +2019-06-08 (La Sotterenea) Eliza Kavtion, Beep Test, Dri Hiev +2019-05-03 (Turbo Haüs) Issfenn +2019-04-21 (Bar Le Ritz PDB) Claud, Hatchie, Girlpool +2018-11-14 (Turbo Haus) Juss, Street Sects +2018-07-26 (Theatre Fairmount) Uniform, Deafheaven +2018-06-14 (Casa del Popolo) Markus Floats, Mark Lowe, Carodiaro, Eliza Kavtion +2018-04-26 (Bar Le Ritz PDB) Strega, Show of Bedlam, Rosetta +2018-04-13 (La Vitrola) Eliza Kavtion, Lungbutter, Wrekmeister Harmonies +2018-03-08 (Brasserie Beaubien) Clayborne, Nightwitches, Aseethe, Vile Creature +2018-02-08 (Bar Le Ritz PDB) KGD, Efrim Manuel Menuck +2017-09-30 (La Sala Rossa) Truster, Lungbutter, Big Brave +2017-09-19 (La Vitrola) Saccharine, Xiu Xiu +2017-06-01 (Casa del Popolo) Genevieve Heistek, Saltland +2017-05-27 (l’Escogriffe) Sough, Ikaray, C H R I S T +2017-05-14 (Bar Le Ritz PDB) Mutter’d, Aim Low, Wrekmeister Harmonies +2016-09-25 (La Sala Rossa) Cloud Rat, Wolves in the Throne Room +2016-09-21 (Theatre Paradoxe) Godspeed You! Black Emperor +2016-04-08 (La Sala Rossa) Caro Diaro, Wreckage With Stick, Ought +2015-08-13 (La Vitrola) Gutser, Chemical Way, Saul Hittner, In the Name of Havoc +2015-06-10 (La Sala Rossa) Ryan Sawyer, Colin Stetson & Sarah Neufeld +2015-06-09 (La Sala Rossa) The Mile End Ladies String Auxiliary, Christof Migone +2015-06-08 (Casa del Popolo) C H R I S T, Jessica Moss, Big Brave +2014-01-19 (Metropolis) Godspeed You! Black Emperor +2014-01-18 (l’Olympia) Elf Power, Neutral Milk Hotel diff --git a/txt/trouble-at-jinx-hotel.txt b/txt/trouble-at-jinx-hotel.txt new file mode 100644 index 00000000..4db28dd6 --- /dev/null +++ b/txt/trouble-at-jinx-hotel.txt @@ -0,0 +1,236 @@ +mollasses + +...à l'hôtel jinx... + +thierry amar; flüffy erskine; norsola johnson; kate lawrence; +jennifer ménard; mike moya; sam shalabi; scott lregrande chernoff... +chris brokaw; bruce cawdron; david michael curry; lisa gamble; efrim +menuck; michel meunier; js truchy; thalia zedek... à l'hôtel jinx. + +lucky 13: siren's song. la la la, amerika. Saint Christopher's +blues. sign of judgment. Lynn Canyon wedding song. coda. You Can't +Win. trouble in mind. las niñas. Miss Peach's Pawnshop. buffaloed +at Wounded Knee/the weeping winds. no love lost. songs from the +basement. + +trouble at jinx hotel. these cursed recordings began in late winter +2003 at the hotel2tango in montréal. it was a bitter sunday in +march. the world was on the brink of war in old mesopotamia, and +we were all of us sick with the influenza. headaches. fevers. wrecked +guts and water on the lungs. coughing like crazy. everyone with a +base case of the shakes. the hotel wass cold and its ghosts were +unhappy. electricity was being weird. lights flickered and all the +microphones crackled with live current. little blue sparks dancing +through the studio rooms. amplifiers were picking up strange radio +frequencies and the piano, which couldn't hold a tune to save its +own life, was behaving like a cantankerous old man. our cats and +dogs were nervous and excited, a-jitter the way animals get whenever +catastrope looms. we started with a 16-track tape machine, three +spools of 1/4" analog audio tape, and a lucky thirteen little songs +hanging in our heads. but when the 16-track busted and broke down +a few days later, we moved to 2" tape on a 24-track machine and +began anew with our fingers crossed. then the 24-track showed the +first symptoms of its own terrible illness. so we did what we could +with digital audio tape while our trusty friend and technician, +garfield lamb, nursed the equipment back to some semblance of health. +then we transfered the digital recordings to 2" tape and went to +work again... waiting to see what the gods would do next. they +toyed with us for a while before unleashing their full fury: the +24-track, seizing mid-song one evening, ate a reel of tape and sent +it spewing around the studio in little pieces, a scene as cruel as +confetti at a funeral. garfield somehow managed to splice the tape +together again. but our nerves were now in tatters too, scattered +all over the hotel floor. when we finally finished tracking this +music in the summer of 2003, the cats and dogs didn't look any less +worried than when we'd begun. of course, they sensed the disaster +we would soon see for ourselves: as we started mixing the very next +night, a faulty lamp at the studio short-circuited and the tape +machine caught on fire. a freak electrical accident. there was an +asterisk of light; then a dragon-tail of smoke coiling across the +room; then there was a darkness; and then the 24-track quietly died. +the animals, cowering in corners, whined, *why didn't you fucking +fools jump ship at the first sign of the storm*? that's when we +drifted away from the jinxed hotel... floating until we found safe +harbour in a studio we could borrow for a few days - one whose own +resident dogs, zoro and ciska, greeted us with idiot grins and the +contented looks of drunken sailors on calm seas. mixing was finished +in a kind of delirious distress at MixArt in notre-dame-de-grace, +montréal, autumn 2003. these lucky thirteen. dieu merci. slgc. *new +year's eve* 2003. + +siren's song. instrumental. + +la la la, amerika. amerika is crawling with cops tonight as we put +our fists through the windows of the world i know you're broken and +you're down at the mouth but you're pouting like a punished little +girl when darkness calls night falls oh mother where are the children +you've orphaned all over the Earth we're frightened and sickened +and poverty-stricken and waiting for you to send word when darkness +calls the sky falls we're tired mother and we're poor we're wretched +at your teeming shore we're homeless and tossed by the storm looking +for the light at your golden door when darkness calls night falls. + +flüffy: marching drum, percussion & choir; norsola: cello & voice; +kate: violin; jennifer: voice; moya: Crumar organ; dmc: viola & +choir; gamble: choir; efrim: choir; js: upright bass; thalia: voice; +scott: acoustic guitars & vocals; scott recorded the air-raid siren +and bombs on the nightly news when baghdad was attacked by the +united states and great britain in march 2003; words & music by +scott chernoff, as stolen from the inscription on the statue of +liberty: *give me your tired your poor your huddled masses yearning +to breathe the wretched refuse of your teeming shore send these the +homeless tempest-tossed to me i lift my lamp beside the golden +door*. + +Saint Christopher's blues. the locusts are in the jimson Shit Creek +is on the rise and you're out wrecking eternity this town looks +like a prison in September's crimson sky when i should be loving +you perfectly you're such a pretty little mess with your Saint +Christopher blues and that doomed little look in your eye the weight +of the world rests all upon your tiny shoes but June why are you +so terrified give me the locust and the flood i'm a Fool for Love +but i'm kneeling in Shit Creek tonight. + +thierry: upright & electric bass; flüffy: marching drum; kate: +violin; jennifer: voice; moya: piano & Crumar organ; bruce: drums; +gramble: scrap metal; scott: electric guitar & vocals. words & music +by scott chernoff. + +sign of judgment. yes sign of judgment yes sign of judgment yes +sign of judgment time ain't long i don't like old Satan none of his +tempting charms cheats you at your Jesus now and roll you in his +arms yes sign of judgment yes sign of judgment yes sign of judgment +time ain't long i don't like old Satan nothing he say or do tell +one lie to hurt us all and two to make it true yes sign of judgment +yes sign of judgment yes sign of judgment time ain't long. + +norsola: cello; jennifer: voice; efrim: electric guitar & harmonium; +js: upright bass; thalia: voice; scott: acoustic guitar & vocals. +words & music by kid prince moore (traditional). + +Lynn Canyon wedding song. well i never cared very much for the west +except for you there who i loved the best now please take me back +east i wrote your name in silver and green where Love and Hate Play +with Fate and History now please take me back east oh please take +me back east we came to the Canyon across the calm and the wild +from Mountain to Mountain and Island to aisle i came for Abel you +came for Cain and we danced on the tables between the cradle and +the grave and i never cared very much for the west but i will be +there in my Sunday best if you will wear your red wedding dress +then please take me back east oh please take me back east. + +flüffy: saw; jennifer: voice; moya: piano & Crumar organ; dmc: viola +& saw; js: upright bass & voice; scott: acoustic guitar & vocals. +words & music by scott chernoff. + +coda. instrumental. + +flüffy: metal heating duct; michel: banjo; dog & voice drone recorded +by julian evans on video tape at Lynn Canyon 2002; mixed by scott +& harris newman in montréal 2003. + +You Can't Win. you with your railroad bones and you with your +golden-spiked skin you with the wind in your clothes and your hat +like a house caving in oh man You Can't Win oh man You Can't Win +oh man You Can't Win when the Angel of Light is at the window with +the Sanctimonious Kid when you're down and out from Sacramento on +the New York City skids oh man You Can't Win oh man You Can't Win +oh man You Can't Win when the East River is groaning all below the +Williamsburg Bridge when airplanes are exploding in the skyline's +falling limbs oh man You Can't Win oh man You Can't Win oh man You +Can't Win when the Swans are at your throat with their busted burning +wings when they squeal and scream and moan at every last ship that +comes in oh man You Can't Win oh man You Can't Win oh man You Can't +Win. + +flüffy: chor; norsola: choir; jennifer: voice; moya: electric guitars +& Crumar organ; sam: oud; bruce: drums & marimba; dmc: choir; +gramble: scrap metal & choir; efrim: electric guitar & choir; js: +choir; thalia: choir; scott: electric & acoustic guitars, vocals. +words & music by scott chernoff, on the road from sacramento to +nyc. september 11 2001, while reading jack black's 1926 hobo memoir +*You Can't Win* and listening to the music of michael gira.. + +trouble in mind. trouble in mind i'm blue but i won't be blue all +the way you know that sun is gonna shine on me someday i'm gonna +lay my head on some lonesome railroad line and let that big +motherfucking engine nullify my mind trouble in mind i'm blue but +i won't be blue all the way you know that sun is gonna shine on me +someday. + +jennifer: voice; sam: electric guitars; chris: electric guitar; +scott: acoustic guitar & vocals. words & music traditional, as +learned from a 1960s recording by sam lightnin' hopkins. + +las niñas. instrumental. + +andrew mayrs recorded his baby daughter illimani crying while banging +on a piano in kitsilano, vancouver 2003; screaming children recorded +by scott at rue roy, montréal 2003. mixed by scott & harris newman +in montréal 2003. + +Miss Peach's Pawnshop. i bought this cross on the island of St. +Thomas because i wanted jesus on my chest i got this tattoo in New +Orleans and this one in the Orient for my honeymoon and i got this +scar somewhere far far away i was drunk as hell and i tried to walk +home and my hands were broken and i found this prayer in the back +of a magazine i know it's ripped but it came like this it came like +this i bought this song at Miss Peach's Pawn with this old overcoat +and a gold-plated wristwatch and i found this prayer in the back +of a magazine i know it's ripped but it came like this it came like +this it came like this it came like this. + +norsola: cello; kate: violin; jennifer: voice; moya: electric guitar, +piano & Crumar organ; dmc: viola; js: upright bass; scott: acoustic +guitar & vocals. words by hilary peach & scott chernoff; music by +scott chernoff. this is a bastard adaptation of peach's poem *Tattoo* +from her album, *Poems Only Dogs Can Hear*. + +buffaloed at Wounded Knee/the weeping winds. instrumental. (for +l.p. & a.i.m. and a pox on mean-spirited sons of bitches everywhere). + +flüffy: saws; dmc: saws. + +no love lost. good-bye old friend it's time to go this is the end +of all that we know when you worship in the house of burden i worship +in the house of blame as you learn to let your spirit burn i yearn +to be a flame to be a flame and there's no love no love lost as +there is the righteous there is the wrong and there is the night +which is betrayed by the dawn and there's no love no love lost as +there is the sinner there is the god and there is the singer profaned +by the song and there's no love no love lost there's no love no +love lost. + +thierry: electric bass; flüffy: bowed piano & saws; jennifer: voice; +moya: piano; michel: banjo; thalia: voice; scott: acoustic guitar, +bowed piano & vocals. words & music by scott chernoff. + +songs from the basement. there's a song for hatred and a song for +love a song for betrayal and a song for trust there's a song for +what's fated a song for dumb luck a song for what's sacred and one +for what's fucked there's a song which is prayed a song which is +cussed these songs from the basement which play unto us. + +norsola: cello; kate: violin; jennifer: voice; sam: electric guitars; +bruce: marimba & cymbals; dmc: viola; efrim: harmonium; garfield +lamb: knife; scott: acoustic guitar & vocals. words & music by scott +chernoff. mixed by howard bilerman at the hotel... ...after the +storm had all blown by... + +recorded by howard bilerman, efrim & scott at mom & pop sounds in +the hotel2tango, mile end, montréal 2003. except where noted, +everything was mixed by howard bilerman & molasses at MixArt in +notre-dame-de-grace, montréal 2003. mastered by harris newman in +little italy, montréal 2003 & 2004. all songs c&p SOCAN 2004, except +*sign of judgment* & *trouble in mind* which are in the public +domain. hilary peach's poem *Tattoo*, which inspired *Miss Peach's +Pawnshop*, is c&p hilary peach 2003. all music arranged by molasses, +design and hand-lettering by slgc ink. in tokyo. photography by dmc +& norsola. layout by slgc ink. with assistance by sean o'hara. all +love to those who helped: sohara & gary at alien8 recordings; howard +bilerman; cada del popolo; don & ian at constellation; eric craven; +julian evans; michael feuerstack; aidan girt; lea grahovac; taras +grescoe; garfield lamb; tim mahony; andrew mayrs, vally mendoza & +illimani mendoza-mayrs; boris & nicolas at MixArt; harris newman, +*who is never wrong*; hilary peach; sugar & smokey; and all the +cars and dogs... xoxo... diff --git a/txt/tweets.txt b/txt/tweets.txt new file mode 100644 index 00000000..240351ec --- /dev/null +++ b/txt/tweets.txt @@ -0,0 +1,32 @@ +triangle forum +https://twitter.com/g0m/status/963890156477603841 + +damn ya ass fat what's ya pronouns? +https://twitter.com/msbigmilk/status/1291218055939448833 + +afab +https://twitter.com/ErisGael/status/1257524779046907904 + +chaos emeralds +https://twitter.com/ErisGael/status/1190147736244490240 + +might as well salivate +https://twitter.com/prawn_meat/status/857444039833944064 + +notifications +https://twitter.com/WTMMP/status/1259694226595610629 + +all robot & computers +https://twitter.com/cryptcrier/status/1238339418160680960 + +the wet world +https://twitter.com/TragicAllyHere/status/1137187876507140098 + +a purchase? +https://twitter.com/pant_leg/status/1027693563604230144 + +influencer +https://twitter.com/witchpuppy/status/974690828257054721 + +-Wint-conversion +https://twitter.com/jckarter/status/967802665080995840 diff --git a/www/causal.agency/.gitignore b/www/causal.agency/.gitignore new file mode 100644 index 00000000..7935a3c1 --- /dev/null +++ b/www/causal.agency/.gitignore @@ -0,0 +1,3 @@ +*.html +scheme.css +scheme.png diff --git a/www/causal.agency/Makefile b/www/causal.agency/Makefile new file mode 100644 index 00000000..95f52120 --- /dev/null +++ b/www/causal.agency/Makefile @@ -0,0 +1,20 @@ +WEBROOT = /usr/local/www/causal.agency + +FILES = index.html style.css scheme.css scheme.png + +all: ${FILES} + +index.html: index.7 + mandoc -T html -O style=style.css index.7 > index.html + +scheme.css: + scheme -st > scheme.css + +scheme.png: + scheme -g > scheme.png + +install: ${FILES} + install -C -m 644 ${FILES} ${WEBROOT} + +clean: + rm -f index.html scheme.css scheme.png diff --git a/www/causal.agency/index.7 b/www/causal.agency/index.7 new file mode 100644 index 00000000..489b0b53 --- /dev/null +++ b/www/causal.agency/index.7 @@ -0,0 +1,70 @@ +.Dd May 19, 2021 +.Dt CAUSAL.AGENCY 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm june +.Nd computer enthusiast!! +. +.Sh SYNOPSIS +.Nm mail +.Mt june@causal.agency +.Nm +in +.Li #ascii.town +on tilde.chat +. +.Sh DESCRIPTION +I make mostly IRC software in C. +I like +.Fx +and +.Ox +but also the GPL. +I want to learn to talk to strangers +and seek out as much magic as I can. +. +.Pp +.Lk https://git.causal.agency code +\(em +.Lk https://text.causal.agency words +.Pq Lk gopher://text.causal.agency gopher +\(em +.Lk /list/ mailist +\(em +.Lk https://liberapay.com/june/ liberapay +. +.Pp +These are some things I've done: +.Bl -tag -width Ds +.It Lk https://git.causal.agency/pounce/about pounce +a multi-client-first IRC bouncer +.It Lk https://git.causal.agency/catgirl/about catgirl +a cosy IRC client +.It Lk https://git.causal.agency/litterbox/about litterbox +a full-text search IRC logger +.It Lk https://git.causal.agency/scooper/about scooper +a web interface for litterbox +.It Lk https://git.causal.agency/catsit/about catsit +a process supervisor +.It Lk https://git.causal.agency/imbox/about "imbox & git-fetch-email" +a tool to pull patches out of IMAP +.It Lk https://git.causal.agency/bubger/about bubger +a mailing list archive generator for IMAP +.It Lk https://git.causal.agency/notemap/about notemap +a tool to mirror text files to IMAP notes +.It Lk https://ascii.town/explore.html torus@ascii.town +a collaborative ASCII art project +.It Lk ssh://play@ascii.town play@ascii.town +a 2048 and snake game over +.Xr ssh 1 +.It Lk https://git.causal.agency/cards/about cards +a +.Pa CARDS.DLL +loader for SDL +.It Lk scheme.png scheme +an earthy terminal colour scheme +.El +. +.Sh SEE ALSO +.Lk /bin/ bin diff --git a/www/causal.agency/style.css b/www/causal.agency/style.css new file mode 100644 index 00000000..368d8da1 --- /dev/null +++ b/www/causal.agency/style.css @@ -0,0 +1,23 @@ +@import url("scheme.css"); + +table.head, table.foot { width: 100%; } +td.head-rtitle, td.foot-os { text-align: right; } +td.head-vol { text-align: center; } +div.Pp { margin: 1ex 0ex; } +div.Nd, div.Bf, div.Op { display: inline; } +span.Pa, span.Ad { font-style: italic; } +span.Ms { font-weight: bold; } +dl.Bl-diag > dt { font-weight: bold; } +code.Nm, code.Fl, code.Cm, code.Ic, code.In, code.Fd, code.Fn, +code.Cd { font-weight: bold; font-family: inherit; } + +html { font-family: monospace; line-height: 1.25em; } +body { max-width: 80ch; margin: 1em auto; padding: 0 1ch; } +table { border-collapse: collapse; } +table.Nm code.Nm { padding-right: 1ch; } +table.foot { margin-top: 1em; } + +html { background-color: var(--ansi16); color: var(--ansi17); } +a { color: var(--ansi4); } +a:visited { color: var(--ansi5); } +a.permalink { color: var(--ansi3); text-decoration: none; } diff --git a/www/git.causal.agency/.gitignore b/www/git.causal.agency/.gitignore new file mode 100644 index 00000000..a0ae074c --- /dev/null +++ b/www/git.causal.agency/.gitignore @@ -0,0 +1,6 @@ +about-filter +hilex +htagml +mtags +owner-filter +source-filter diff --git a/www/git.causal.agency/Makefile b/www/git.causal.agency/Makefile new file mode 100644 index 00000000..638c21e7 --- /dev/null +++ b/www/git.causal.agency/Makefile @@ -0,0 +1,20 @@ +ETC = /usr/local/etc +WWW = /usr/local/www/cgit +LIBEXEC = /usr/local/libexec + +BIN = ../../bin +BINS = about-filter source-filter owner-filter hilex htagml mtags + +all: ${BINS} + +install: cgitrc custom.css ${BINS} + install -m 644 cgitrc ${ETC} + install -m 644 custom.css ${WWW} + install ${BINS} ${LIBEXEC} + +hilex htagml mtags:: + ${MAKE} -C ${BIN} $@ + ln -f ${BIN}/$@ $@ + +clean: + rm -f ${BINS} diff --git a/www/git.causal.agency/about-filter.sh b/www/git.causal.agency/about-filter.sh new file mode 100644 index 00000000..2ff645e2 --- /dev/null +++ b/www/git.causal.agency/about-filter.sh @@ -0,0 +1,15 @@ +#!/bin/sh + +options=fragment,man=%N.%S,includes=../tree/%I + +case "$1" in + (README.[1-9]) + exec /usr/bin/mandoc -T html -O $options + ;; + (*.[1-9]) + exec /usr/bin/mandoc -T html -O $options,toc + ;; + (*) + exec /usr/local/libexec/hilex -l text -f html -o pre + ;; +esac diff --git a/www/git.causal.agency/cgit/.gitignore b/www/git.causal.agency/cgit/.gitignore new file mode 100644 index 00000000..bca98fcf --- /dev/null +++ b/www/git.causal.agency/cgit/.gitignore @@ -0,0 +1,13 @@ +# Files I don't care to see in git-status/commit +/cgit +/git +cgit.conf +CGIT-CFLAGS +VERSION +cgitrc.5 +cgitrc.5.fo +cgitrc.5.html +cgitrc.5.pdf +cgitrc.5.xml +*.o +*.d diff --git a/.mailmap b/www/git.causal.agency/cgit/.mailmap index 03b54796..03b54796 100644 --- a/.mailmap +++ b/www/git.causal.agency/cgit/.mailmap diff --git a/AUTHORS b/www/git.causal.agency/cgit/AUTHORS index 031de338..031de338 100644 --- a/AUTHORS +++ b/www/git.causal.agency/cgit/AUTHORS diff --git a/COPYING b/www/git.causal.agency/cgit/COPYING index d159169d..d159169d 100644 --- a/COPYING +++ b/www/git.causal.agency/cgit/COPYING diff --git a/Makefile b/www/git.causal.agency/cgit/Makefile index d13c5bd1..358a3c8e 100644 --- a/Makefile +++ b/www/git.causal.agency/cgit/Makefile @@ -15,7 +15,7 @@ pdfdir = $(docdir) mandir = $(prefix)/share/man SHA1_HEADER = <openssl/sha.h> GIT_VER = 2.32.0 -GIT_URL = https://www.kernel.org/pub/software/scm/git/git-$(GIT_VER).tar.xz +GIT_URL = https://www.kernel.org/pub/software/scm/git/git-$(GIT_VER).tar.gz INSTALL = install COPYTREE = cp -r MAN5_TXT = $(wildcard *.5.txt) @@ -157,7 +157,7 @@ clean-doc: $(RM) cgitrc.5 cgitrc.5.html cgitrc.5.pdf cgitrc.5.xml cgitrc.5.fo get-git: - curl -L $(GIT_URL) | tar -xJf - && rm -rf git && mv git-$(GIT_VER) git + curl -L $(GIT_URL) | tar -xzf - && rm -rf git && mv git-$(GIT_VER) git tags: $(QUIET_TAGS)find . -name '*.[ch]' | xargs ctags diff --git a/README b/www/git.causal.agency/cgit/README index 7a6b4a40..371cf21f 100644 --- a/README +++ b/www/git.causal.agency/cgit/README @@ -32,18 +32,6 @@ This will install `cgit.cgi` and `cgit.css` into `/var/www/htdocs/cgit`. You can configure this location (and a few other things) by providing a `cgit.conf` file (see the Makefile for details). -If you'd like to compile without Lua support, you may use: - - $ make NO_LUA=1 - -And if you'd like to specify a Lua implementation, you may use: - - $ make LUA_PKGCONFIG=lua5.1 - -If this is not specified, the Lua implementation will be auto-detected, -preferring LuaJIT if many are present. Acceptable values are generally "lua", -"luajit", "lua5.1", and "lua5.2". - Dependencies ------------ @@ -51,7 +39,6 @@ Dependencies * libzip * libcrypto (OpenSSL) * libssl (OpenSSL) -* optional: luajit or lua, most reliably used when pkg-config is available Apache configuration -------------------- diff --git a/cache.c b/www/git.causal.agency/cgit/cache.c index 55199e8f..578b73b0 100644 --- a/cache.c +++ b/www/git.causal.agency/cgit/cache.c @@ -265,6 +265,13 @@ static int process_slot(struct cache_slot *slot) { int err; + /* + * Make sure any buffered data is flushed before we redirect, + * do sendfile(2) or write(2) + */ + if (fflush(stdout)) + return errno; + err = open_slot(slot); if (!err && slot->match) { if (is_expired(slot)) { diff --git a/cache.h b/www/git.causal.agency/cgit/cache.h index 470da4fc..470da4fc 100644 --- a/cache.h +++ b/www/git.causal.agency/cgit/cache.h diff --git a/cgit.c b/www/git.causal.agency/cgit/cgit.c index 08d81a1d..a86970de 100644 --- a/cgit.c +++ b/www/git.causal.agency/cgit/cgit.c @@ -674,7 +674,7 @@ static inline void authenticate_post(void) len = MAX_AUTHENTICATION_POST_BYTES; if ((len = read(STDIN_FILENO, buffer, len)) < 0) die_errno("Could not read POST from stdin"); - if (write(STDOUT_FILENO, buffer, len) < 0) + if (fwrite(buffer, 1, len, stdout) < len) die_errno("Could not write POST to stdout"); cgit_close_filter(ctx.cfg.auth_filter); exit(0); @@ -964,12 +964,6 @@ static void cgit_parse_args(int argc, const char **argv) for (i = 1; i < argc; i++) { if (!strcmp(argv[i], "--version")) { printf("CGit %s | https://git.zx2c4.com/cgit/\n\nCompiled in features:\n", CGIT_VERSION); -#ifdef NO_LUA - printf("[-] "); -#else - printf("[+] "); -#endif - printf("Lua scripting\n"); #ifndef HAVE_LINUX_SENDFILE printf("[-] "); #else @@ -1051,7 +1045,6 @@ int cmd_main(int argc, const char **argv) const char *path; int err, ttl; - cgit_init_filters(); atexit(cgit_cleanup_filters); prepare_context(); diff --git a/cgit.css b/www/git.causal.agency/cgit/cgit.css index dfa144d0..f3dbb7a9 100644 --- a/cgit.css +++ b/www/git.causal.agency/cgit/cgit.css @@ -75,7 +75,7 @@ div#cgit table.tabs td { } div#cgit table.tabs td a { - padding: 2px 0.75em; + padding: 2px 0.25em; color: #777; font-size: 110%; } @@ -437,11 +437,6 @@ div#cgit div.commit-subject { padding: 0em; } -div#cgit div.commit-msg { - white-space: pre; - font-family: monospace; -} - div#cgit div.notes-header { font-weight: bold; padding-top: 1.5em; @@ -538,26 +533,20 @@ div#cgit table.diff { width: 100%; } -div#cgit table.diff td { - font-family: monospace; - white-space: pre; -} - -div#cgit table.diff td div.head { +div#cgit table.diff td span.head { font-weight: bold; - margin-top: 1em; color: black; } -div#cgit table.diff td div.hunk { +div#cgit table.diff td span.hunk { color: #009; } -div#cgit table.diff td div.add { +div#cgit table.diff td span.add { color: green; } -div#cgit table.diff td div.del { +div#cgit table.diff td span.del { color: red; } @@ -581,7 +570,6 @@ div#cgit table.list td.reposection { div#cgit a.button { font-size: 80%; - padding: 0em 0.5em; } div#cgit a.primary { @@ -671,7 +659,6 @@ div#cgit div.footer a:hover { div#cgit a.branch-deco { color: #000; - margin: 0px 0.5em; padding: 0px 0.25em; background-color: #88ff88; border: solid 1px #007700; @@ -679,7 +666,6 @@ div#cgit a.branch-deco { div#cgit a.tag-deco { color: #000; - margin: 0px 0.5em; padding: 0px 0.25em; background-color: #ffff88; border: solid 1px #777700; @@ -687,7 +673,6 @@ div#cgit a.tag-deco { div#cgit a.tag-annotated-deco { color: #000; - margin: 0px 0.5em; padding: 0px 0.25em; background-color: #ffcc88; border: solid 1px #777700; @@ -695,7 +680,6 @@ div#cgit a.tag-annotated-deco { div#cgit a.remote-deco { color: #000; - margin: 0px 0.5em; padding: 0px 0.25em; background-color: #ccccff; border: solid 1px #000077; @@ -703,7 +687,6 @@ div#cgit a.remote-deco { div#cgit a.deco { color: #000; - margin: 0px 0.5em; padding: 0px 0.25em; background-color: #ff8888; border: solid 1px #770000; @@ -714,7 +697,6 @@ div#cgit div.commit-subject a.tag-deco, div#cgit div.commit-subject a.tag-annotated-deco, div#cgit div.commit-subject a.remote-deco, div#cgit div.commit-subject a.deco { - margin-left: 1em; font-size: 75%; } diff --git a/cgit.h b/www/git.causal.agency/cgit/cgit.h index 69b5c132..72fcd849 100644 --- a/cgit.h +++ b/www/git.causal.agency/cgit/cgit.h @@ -385,7 +385,6 @@ extern void cgit_fprintf_filter(struct cgit_filter *filter, FILE *f, const char extern void cgit_exec_filter_init(struct cgit_exec_filter *filter, char *cmd, char **argv); extern struct cgit_filter *cgit_new_filter(const char *cmd, filter_type filtertype); extern void cgit_cleanup_filters(void); -extern void cgit_init_filters(void); extern void cgit_prepare_repo_env(struct cgit_repo * repo); diff --git a/cgit.mk b/www/git.causal.agency/cgit/cgit.mk index 3fcc1ca3..5b9ed5be 100644 --- a/cgit.mk +++ b/www/git.causal.agency/cgit/cgit.mk @@ -27,32 +27,6 @@ ifdef NO_C99_FORMAT CFLAGS += -DNO_C99_FORMAT endif -ifdef NO_LUA - LUA_MESSAGE := linking without specified Lua support - CGIT_CFLAGS += -DNO_LUA -else -ifeq ($(LUA_PKGCONFIG),) - LUA_PKGCONFIG := $(shell for pc in luajit lua lua5.2 lua5.1; do \ - $(PKG_CONFIG) --exists $$pc 2>/dev/null && echo $$pc && break; \ - done) - LUA_MODE := autodetected -else - LUA_MODE := specified -endif -ifneq ($(LUA_PKGCONFIG),) - LUA_MESSAGE := linking with $(LUA_MODE) $(LUA_PKGCONFIG) - LUA_LIBS := $(shell $(PKG_CONFIG) --libs $(LUA_PKGCONFIG) 2>/dev/null) - LUA_CFLAGS := $(shell $(PKG_CONFIG) --cflags $(LUA_PKGCONFIG) 2>/dev/null) - CGIT_LIBS += $(LUA_LIBS) - CGIT_CFLAGS += $(LUA_CFLAGS) -else - LUA_MESSAGE := linking without autodetected Lua support - NO_LUA := YesPlease - CGIT_CFLAGS += -DNO_LUA -endif - -endif - # Add -ldl to linker flags on systems that commonly use GNU libc. ifneq (,$(filter $(uname_S),Linux GNU GNU/kFreeBSD)) CGIT_LIBS += -ldl @@ -130,7 +104,6 @@ $(CGIT_OBJS): %.o: %.c GIT-CFLAGS $(CGIT_PREFIX)CGIT-CFLAGS $(missing_dep_dirs) $(QUIET_CC)$(CC) -o $*.o -c $(dep_args) $(ALL_CFLAGS) $(EXTRA_CPPFLAGS) $(CGIT_CFLAGS) $< $(CGIT_PREFIX)cgit: $(CGIT_OBJS) GIT-LDFLAGS $(GITLIBS) - @echo 1>&1 " * $(LUA_MESSAGE)" $(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(LIBS) $(CGIT_LIBS) CGIT_SP_OBJS := $(patsubst %.o,%.sp,$(CGIT_OBJS)) diff --git a/cgit.png b/www/git.causal.agency/cgit/cgit.png index 425528ee..425528ee 100644 --- a/cgit.png +++ b/www/git.causal.agency/cgit/cgit.png Binary files differdiff --git a/cgitrc.5.txt b/www/git.causal.agency/cgit/cgitrc.5.txt index 33a6a8c0..8d663952 100644 --- a/cgitrc.5.txt +++ b/www/git.causal.agency/cgit/cgitrc.5.txt @@ -632,37 +632,6 @@ specification with the relevant string; available values are: 'exec:':: The default "one process per filter" mode. -'lua:':: - Executes the script using a built-in Lua interpreter. The script is - loaded once per execution of cgit, and may be called multiple times - during cgit's lifetime, making it a good choice for repeated filters - such as the 'email filter'. It responds to three functions: - - 'filter_open(argument1, argument2, argument3, ...)':: - This is called upon activation of the filter for a particular - set of data. - 'filter_write(buffer)':: - This is called whenever cgit writes data to the webpage. - 'filter_close()':: - This is called when the current filtering operation is - completed. It must return an integer value. Usually 0 - indicates success. - - Additionally, cgit exposes to the Lua the following built-in functions: - - 'html(str)':: - Writes 'str' to the webpage. - 'html_txt(str)':: - HTML escapes and writes 'str' to the webpage. - 'html_attr(str)':: - HTML escapes for an attribute and writes "str' to the webpage. - 'html_url_path(str)':: - URL escapes for a path and writes 'str' to the webpage. - 'html_url_arg(str)':: - URL escapes for an argument and writes 'str' to the webpage. - 'html_include(file)':: - Includes 'file' in webpage. - Parameters are provided to filters as follows. @@ -696,9 +665,6 @@ auth filter:: with a 302 redirect, and write to output one or more "Set-Cookie" HTTP headers, each followed by a newline. - Please see `filters/simple-authentication.lua` for a clear example - script that may be modified. - commit filter:: This filter is given no arguments. The commit message text that is to be filtered is available on standard input and the filtered text is diff --git a/cmd.c b/www/git.causal.agency/cgit/cmd.c index 0eb75b1d..0eb75b1d 100644 --- a/cmd.c +++ b/www/git.causal.agency/cgit/cmd.c diff --git a/cmd.h b/www/git.causal.agency/cgit/cmd.h index 6249b1d8..6249b1d8 100644 --- a/cmd.h +++ b/www/git.causal.agency/cgit/cmd.h diff --git a/configfile.c b/www/git.causal.agency/cgit/configfile.c index e0391091..e0391091 100644 --- a/configfile.c +++ b/www/git.causal.agency/cgit/configfile.c diff --git a/configfile.h b/www/git.causal.agency/cgit/configfile.h index af7ca197..af7ca197 100644 --- a/configfile.h +++ b/www/git.causal.agency/cgit/configfile.h diff --git a/contrib/hooks/post-receive.agefile b/www/git.causal.agency/cgit/contrib/hooks/post-receive.agefile index 2f72ae9c..2f72ae9c 100755 --- a/contrib/hooks/post-receive.agefile +++ b/www/git.causal.agency/cgit/contrib/hooks/post-receive.agefile diff --git a/favicon.ico b/www/git.causal.agency/cgit/favicon.ico index 56ff5938..56ff5938 100644 --- a/favicon.ico +++ b/www/git.causal.agency/cgit/favicon.ico Binary files differdiff --git a/www/git.causal.agency/cgit/filter.c b/www/git.causal.agency/cgit/filter.c new file mode 100644 index 00000000..2b6c838e --- /dev/null +++ b/www/git.causal.agency/cgit/filter.c @@ -0,0 +1,222 @@ +/* filter.c: filter framework functions + * + * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com> + * + * Licensed under GNU General Public License v2 + * (see COPYING for full license text) + */ + +#include "cgit.h" +#include "html.h" + +static inline void reap_filter(struct cgit_filter *filter) +{ + if (filter && filter->cleanup) + filter->cleanup(filter); +} + +void cgit_cleanup_filters(void) +{ + int i; + reap_filter(ctx.cfg.about_filter); + reap_filter(ctx.cfg.commit_filter); + reap_filter(ctx.cfg.source_filter); + reap_filter(ctx.cfg.email_filter); + reap_filter(ctx.cfg.owner_filter); + reap_filter(ctx.cfg.auth_filter); + for (i = 0; i < cgit_repolist.count; ++i) { + reap_filter(cgit_repolist.repos[i].about_filter); + reap_filter(cgit_repolist.repos[i].commit_filter); + reap_filter(cgit_repolist.repos[i].source_filter); + reap_filter(cgit_repolist.repos[i].email_filter); + reap_filter(cgit_repolist.repos[i].owner_filter); + } +} + +static int open_exec_filter(struct cgit_filter *base, va_list ap) +{ + struct cgit_exec_filter *filter = (struct cgit_exec_filter *)base; + int pipe_fh[2]; + int i; + + for (i = 0; i < filter->base.argument_count; i++) + filter->argv[i + 1] = va_arg(ap, char *); + + chk_zero(fflush(stdout), "unable to flush STDOUT"); + filter->old_stdout = chk_positive(dup(STDOUT_FILENO), + "Unable to duplicate STDOUT"); + chk_zero(pipe(pipe_fh), "Unable to create pipe to subprocess"); + filter->pid = chk_non_negative(fork(), "Unable to create subprocess"); + if (filter->pid == 0) { + close(pipe_fh[1]); + chk_non_negative(dup2(pipe_fh[0], STDIN_FILENO), + "Unable to use pipe as STDIN"); + execvp(filter->cmd, filter->argv); + die_errno("Unable to exec subprocess %s", filter->cmd); + } + close(pipe_fh[0]); + chk_non_negative(dup2(pipe_fh[1], STDOUT_FILENO), + "Unable to use pipe as STDOUT"); + close(pipe_fh[1]); + return 0; +} + +static int close_exec_filter(struct cgit_filter *base) +{ + struct cgit_exec_filter *filter = (struct cgit_exec_filter *)base; + int i, exit_status = 0; + + chk_zero(fflush(stdout), "unable to flush STDOUT"); + chk_non_negative(dup2(filter->old_stdout, STDOUT_FILENO), + "Unable to restore STDOUT"); + close(filter->old_stdout); + if (filter->pid < 0) + goto done; + waitpid(filter->pid, &exit_status, 0); + if (WIFEXITED(exit_status)) + goto done; + die("Subprocess %s exited abnormally", filter->cmd); + +done: + for (i = 0; i < filter->base.argument_count; i++) + filter->argv[i + 1] = NULL; + return WEXITSTATUS(exit_status); + +} + +static void fprintf_exec_filter(struct cgit_filter *base, FILE *f, const char *prefix) +{ + struct cgit_exec_filter *filter = (struct cgit_exec_filter *)base; + fprintf(f, "%sexec:%s\n", prefix, filter->cmd); +} + +static void cleanup_exec_filter(struct cgit_filter *base) +{ + struct cgit_exec_filter *filter = (struct cgit_exec_filter *)base; + if (filter->argv) { + free(filter->argv); + filter->argv = NULL; + } + if (filter->cmd) { + free(filter->cmd); + filter->cmd = NULL; + } +} + +static struct cgit_filter *new_exec_filter(const char *cmd, int argument_count) +{ + struct cgit_exec_filter *f; + int args_size = 0; + + f = xmalloc(sizeof(*f)); + /* We leave argv for now and assign it below. */ + cgit_exec_filter_init(f, xstrdup(cmd), NULL); + f->base.argument_count = argument_count; + args_size = (2 + argument_count) * sizeof(char *); + f->argv = xmalloc(args_size); + memset(f->argv, 0, args_size); + f->argv[0] = f->cmd; + return &f->base; +} + +void cgit_exec_filter_init(struct cgit_exec_filter *filter, char *cmd, char **argv) +{ + memset(filter, 0, sizeof(*filter)); + filter->base.open = open_exec_filter; + filter->base.close = close_exec_filter; + filter->base.fprintf = fprintf_exec_filter; + filter->base.cleanup = cleanup_exec_filter; + filter->cmd = cmd; + filter->argv = argv; + /* The argument count for open_filter is zero by default, unless called from new_filter, above. */ + filter->base.argument_count = 0; +} + +int cgit_open_filter(struct cgit_filter *filter, ...) +{ + int result; + va_list ap; + if (!filter) + return 0; + va_start(ap, filter); + result = filter->open(filter, ap); + va_end(ap); + return result; +} + +int cgit_close_filter(struct cgit_filter *filter) +{ + if (!filter) + return 0; + return filter->close(filter); +} + +void cgit_fprintf_filter(struct cgit_filter *filter, FILE *f, const char *prefix) +{ + filter->fprintf(filter, f, prefix); +} + + + +static const struct { + const char *prefix; + struct cgit_filter *(*ctor)(const char *cmd, int argument_count); +} filter_specs[] = { + { "exec", new_exec_filter }, +}; + +struct cgit_filter *cgit_new_filter(const char *cmd, filter_type filtertype) +{ + char *colon; + int i; + size_t len; + int argument_count; + + if (!cmd || !cmd[0]) + return NULL; + + colon = strchr(cmd, ':'); + len = colon - cmd; + /* + * In case we're running on Windows, don't allow a single letter before + * the colon. + */ + if (len == 1) + colon = NULL; + + switch (filtertype) { + case AUTH: + argument_count = 12; + break; + + case EMAIL: + argument_count = 2; + break; + + case OWNER: + argument_count = 0; + break; + + case SOURCE: + case ABOUT: + argument_count = 1; + break; + + case COMMIT: + default: + argument_count = 0; + break; + } + + /* If no prefix is given, exec filter is the default. */ + if (!colon) + return new_exec_filter(cmd, argument_count); + + for (i = 0; i < ARRAY_SIZE(filter_specs); i++) { + if (len == strlen(filter_specs[i].prefix) && + !strncmp(filter_specs[i].prefix, cmd, len)) + return filter_specs[i].ctor(colon + 1, argument_count); + } + + die("Invalid filter type: %.*s", (int) len, cmd); +} diff --git a/filters/about-formatting.sh b/www/git.causal.agency/cgit/filters/about-formatting.sh index 85daf9c2..85daf9c2 100755 --- a/filters/about-formatting.sh +++ b/www/git.causal.agency/cgit/filters/about-formatting.sh diff --git a/filters/commit-links.sh b/www/git.causal.agency/cgit/filters/commit-links.sh index 796ac308..796ac308 100755 --- a/filters/commit-links.sh +++ b/www/git.causal.agency/cgit/filters/commit-links.sh diff --git a/filters/email-gravatar.py b/www/git.causal.agency/cgit/filters/email-gravatar.py index d70440ea..012113c5 100755 --- a/filters/email-gravatar.py +++ b/www/git.causal.agency/cgit/filters/email-gravatar.py @@ -1,8 +1,5 @@ #!/usr/bin/env python3 -# Please prefer the email-gravatar.lua using lua: as a prefix over this script. This -# script is very slow, in comparison. -# # This script may be used with the email-filter or repo.email-filter settings in cgitrc. # # The following environment variables can be used to retrieve the configuration diff --git a/filters/html-converters/man2html b/www/git.causal.agency/cgit/filters/html-converters/man2html index 0ef78841..0ef78841 100755 --- a/filters/html-converters/man2html +++ b/www/git.causal.agency/cgit/filters/html-converters/man2html diff --git a/filters/html-converters/md2html b/www/git.causal.agency/cgit/filters/html-converters/md2html index 59f43a84..59f43a84 100755 --- a/filters/html-converters/md2html +++ b/www/git.causal.agency/cgit/filters/html-converters/md2html diff --git a/filters/html-converters/rst2html b/www/git.causal.agency/cgit/filters/html-converters/rst2html index 02d90f81..02d90f81 100755 --- a/filters/html-converters/rst2html +++ b/www/git.causal.agency/cgit/filters/html-converters/rst2html diff --git a/filters/html-converters/txt2html b/www/git.causal.agency/cgit/filters/html-converters/txt2html index 495eeceb..495eeceb 100755 --- a/filters/html-converters/txt2html +++ b/www/git.causal.agency/cgit/filters/html-converters/txt2html diff --git a/filters/syntax-highlighting.py b/www/git.causal.agency/cgit/filters/syntax-highlighting.py index e912594c..e912594c 100755 --- a/filters/syntax-highlighting.py +++ b/www/git.causal.agency/cgit/filters/syntax-highlighting.py diff --git a/filters/syntax-highlighting.sh b/www/git.causal.agency/cgit/filters/syntax-highlighting.sh index 840bc34f..840bc34f 100755 --- a/filters/syntax-highlighting.sh +++ b/www/git.causal.agency/cgit/filters/syntax-highlighting.sh diff --git a/gen-version.sh b/www/git.causal.agency/cgit/gen-version.sh index 80cf49af..80cf49af 100755 --- a/gen-version.sh +++ b/www/git.causal.agency/cgit/gen-version.sh diff --git a/html.c b/www/git.causal.agency/cgit/html.c index 7f81965f..cefcf5e7 100644 --- a/html.c +++ b/www/git.causal.agency/cgit/html.c @@ -80,7 +80,7 @@ char *fmtalloc(const char *format, ...) void html_raw(const char *data, size_t size) { - if (write(STDOUT_FILENO, data, size) != size) + if (fwrite(data, 1, size, stdout) != size) die_errno("write error on html output"); } diff --git a/html.h b/www/git.causal.agency/cgit/html.h index fa4de775..fa4de775 100644 --- a/html.h +++ b/www/git.causal.agency/cgit/html.h diff --git a/parsing.c b/www/git.causal.agency/cgit/parsing.c index 72b59b3c..72b59b3c 100644 --- a/parsing.c +++ b/www/git.causal.agency/cgit/parsing.c diff --git a/robots.txt b/www/git.causal.agency/cgit/robots.txt index 4ce948fe..1b33266d 100644 --- a/robots.txt +++ b/www/git.causal.agency/cgit/robots.txt @@ -1,3 +1,4 @@ User-agent: * Disallow: /*/snapshot/* +Disallow: /*/blame/* Allow: / diff --git a/scan-tree.c b/www/git.causal.agency/cgit/scan-tree.c index 6a2f65a8..6a2f65a8 100644 --- a/scan-tree.c +++ b/www/git.causal.agency/cgit/scan-tree.c diff --git a/scan-tree.h b/www/git.causal.agency/cgit/scan-tree.h index 1afbd4bb..1afbd4bb 100644 --- a/scan-tree.h +++ b/www/git.causal.agency/cgit/scan-tree.h diff --git a/shared.c b/www/git.causal.agency/cgit/shared.c index 8115469a..8115469a 100644 --- a/shared.c +++ b/www/git.causal.agency/cgit/shared.c diff --git a/tests/.gitignore b/www/git.causal.agency/cgit/tests/.gitignore index 3fd2e965..3fd2e965 100644 --- a/tests/.gitignore +++ b/www/git.causal.agency/cgit/tests/.gitignore diff --git a/tests/Makefile b/www/git.causal.agency/cgit/tests/Makefile index 65e11173..65e11173 100644 --- a/tests/Makefile +++ b/www/git.causal.agency/cgit/tests/Makefile diff --git a/tests/filters/dump.sh b/www/git.causal.agency/cgit/tests/filters/dump.sh index da6f7a1b..da6f7a1b 100755 --- a/tests/filters/dump.sh +++ b/www/git.causal.agency/cgit/tests/filters/dump.sh diff --git a/tests/setup.sh b/www/git.causal.agency/cgit/tests/setup.sh index 8db810ff..31e7d5bb 100755 --- a/tests/setup.sh +++ b/www/git.causal.agency/cgit/tests/setup.sh @@ -60,12 +60,6 @@ fi FILTER_DIRECTORY=$(cd ../filters && pwd) -if cgit --version | grep -F -q "[+] Lua scripting"; then - export CGIT_HAS_LUA=1 -else - export CGIT_HAS_LUA=0 -fi - mkrepo() { name=$1 count=$2 @@ -144,19 +138,6 @@ repo.email-filter=exec:$FILTER_DIRECTORY/dump.sh repo.source-filter=exec:$FILTER_DIRECTORY/dump.sh repo.readme=master:a+b EOF - - if [ $CGIT_HAS_LUA -eq 1 ]; then - cat >>cgitrc <<EOF -repo.url=filter-lua -repo.path=$PWD/repos/filter/.git -repo.desc=filtered repo -repo.about-filter=lua:$FILTER_DIRECTORY/dump.lua -repo.commit-filter=lua:$FILTER_DIRECTORY/dump.lua -repo.email-filter=lua:$FILTER_DIRECTORY/dump.lua -repo.source-filter=lua:$FILTER_DIRECTORY/dump.lua -repo.readme=master:a+b -EOF - fi } cgit_query() diff --git a/tests/t0001-validate-git-versions.sh b/www/git.causal.agency/cgit/tests/t0001-validate-git-versions.sh index dd84fe3f..dd84fe3f 100755 --- a/tests/t0001-validate-git-versions.sh +++ b/www/git.causal.agency/cgit/tests/t0001-validate-git-versions.sh diff --git a/tests/t0010-validate-html.sh b/www/git.causal.agency/cgit/tests/t0010-validate-html.sh index ca08d69d..ca08d69d 100755 --- a/tests/t0010-validate-html.sh +++ b/www/git.causal.agency/cgit/tests/t0010-validate-html.sh diff --git a/tests/t0020-validate-cache.sh b/www/git.causal.agency/cgit/tests/t0020-validate-cache.sh index 657765d8..657765d8 100755 --- a/tests/t0020-validate-cache.sh +++ b/www/git.causal.agency/cgit/tests/t0020-validate-cache.sh diff --git a/tests/t0101-index.sh b/www/git.causal.agency/cgit/tests/t0101-index.sh index 82ef9b04..82ef9b04 100755 --- a/tests/t0101-index.sh +++ b/www/git.causal.agency/cgit/tests/t0101-index.sh diff --git a/tests/t0102-summary.sh b/www/git.causal.agency/cgit/tests/t0102-summary.sh index b8864cb1..b8864cb1 100755 --- a/tests/t0102-summary.sh +++ b/www/git.causal.agency/cgit/tests/t0102-summary.sh diff --git a/tests/t0103-log.sh b/www/git.causal.agency/cgit/tests/t0103-log.sh index bdf1435a..bdf1435a 100755 --- a/tests/t0103-log.sh +++ b/www/git.causal.agency/cgit/tests/t0103-log.sh diff --git a/tests/t0104-tree.sh b/www/git.causal.agency/cgit/tests/t0104-tree.sh index 2e140f59..2e140f59 100755 --- a/tests/t0104-tree.sh +++ b/www/git.causal.agency/cgit/tests/t0104-tree.sh diff --git a/tests/t0105-commit.sh b/www/git.causal.agency/cgit/tests/t0105-commit.sh index 1a12ee39..cfed1e7d 100755 --- a/tests/t0105-commit.sh +++ b/www/git.causal.agency/cgit/tests/t0105-commit.sh @@ -11,7 +11,7 @@ test_expect_success 'find commit subject' ' grep "<div class=.commit-subject.>commit 5<" tmp ' -test_expect_success 'find commit msg' 'grep "<div class=.commit-msg.></div>" tmp' +test_expect_success 'find commit msg' 'grep "<pre class=.commit-msg.></pre>" tmp' test_expect_success 'find diffstat' 'grep "<table summary=.diffstat. class=.diffstat.>" tmp' test_expect_success 'find diff summary' ' @@ -29,8 +29,8 @@ test_expect_success 'root commit contains diffstat' ' ' test_expect_success 'root commit contains diff' ' - grep ">diff --git a/file-1 b/file-1<" tmp && - grep "<div class=.add.>+1</div>" tmp + grep ">diff --git a/file-1 b/file-1" tmp && + grep "<span class=.add.>+1</span>" tmp ' test_done diff --git a/tests/t0106-diff.sh b/www/git.causal.agency/cgit/tests/t0106-diff.sh index 82b645ec..62a0a74a 100755 --- a/tests/t0106-diff.sh +++ b/www/git.causal.agency/cgit/tests/t0106-diff.sh @@ -9,11 +9,11 @@ test_expect_success 'find blob link' 'grep "<a href=./foo/tree/file-5?id=" tmp' test_expect_success 'find added file' 'grep "new file mode 100644" tmp' test_expect_success 'find hunk header' ' - grep "<div class=.hunk.>@@ -0,0 +1 @@</div>" tmp + grep "<span class=.hunk.>@@ -0,0 +1 @@</span>" tmp ' test_expect_success 'find added line' ' - grep "<div class=.add.>+5</div>" tmp + grep "<span class=.add.>+5</span>" tmp ' test_done diff --git a/tests/t0107-snapshot.sh b/www/git.causal.agency/cgit/tests/t0107-snapshot.sh index 0811ec40..0811ec40 100755 --- a/tests/t0107-snapshot.sh +++ b/www/git.causal.agency/cgit/tests/t0107-snapshot.sh diff --git a/tests/t0108-patch.sh b/www/git.causal.agency/cgit/tests/t0108-patch.sh index 013d6802..013d6802 100755 --- a/tests/t0108-patch.sh +++ b/www/git.causal.agency/cgit/tests/t0108-patch.sh diff --git a/tests/t0109-gitconfig.sh b/www/git.causal.agency/cgit/tests/t0109-gitconfig.sh index 189ef281..189ef281 100755 --- a/tests/t0109-gitconfig.sh +++ b/www/git.causal.agency/cgit/tests/t0109-gitconfig.sh diff --git a/tests/t0110-rawdiff.sh b/www/git.causal.agency/cgit/tests/t0110-rawdiff.sh index 66fa7d5d..66fa7d5d 100755 --- a/tests/t0110-rawdiff.sh +++ b/www/git.causal.agency/cgit/tests/t0110-rawdiff.sh diff --git a/tests/t0111-filter.sh b/www/git.causal.agency/cgit/tests/t0111-filter.sh index 2fdc3669..e5d35750 100755 --- a/tests/t0111-filter.sh +++ b/www/git.causal.agency/cgit/tests/t0111-filter.sh @@ -4,9 +4,6 @@ test_description='Check filtered content' . ./setup.sh prefixes="exec" -if [ $CGIT_HAS_LUA -eq 1 ]; then - prefixes="$prefixes lua" -fi for prefix in $prefixes do diff --git a/tests/valgrind/bin/cgit b/www/git.causal.agency/cgit/tests/valgrind/bin/cgit index dcdfbe53..dcdfbe53 100755 --- a/tests/valgrind/bin/cgit +++ b/www/git.causal.agency/cgit/tests/valgrind/bin/cgit diff --git a/ui-atom.c b/www/git.causal.agency/cgit/ui-atom.c index 1056f363..1056f363 100644 --- a/ui-atom.c +++ b/www/git.causal.agency/cgit/ui-atom.c diff --git a/ui-atom.h b/www/git.causal.agency/cgit/ui-atom.h index dda953bb..dda953bb 100644 --- a/ui-atom.h +++ b/www/git.causal.agency/cgit/ui-atom.h diff --git a/ui-blame.c b/www/git.causal.agency/cgit/ui-blame.c index 03136f78..4adec2b9 100644 --- a/ui-blame.c +++ b/www/git.causal.agency/cgit/ui-blame.c @@ -152,6 +152,10 @@ static void print_object(const struct object_id *oid, const char *path, cgit_tree_link("tree", NULL, NULL, ctx.qry.head, rev, path); html(")\n"); + if (buffer_is_binary(buf, size)) { + html("<div class='error'>blob is binary.</div>"); + goto cleanup; + } if (ctx.cfg.max_blob_size && size / 1024 > ctx.cfg.max_blob_size) { htmlf("<div class='error'>blob size (%ldKB)" " exceeds display size limit (%dKB).</div>", diff --git a/ui-blame.h b/www/git.causal.agency/cgit/ui-blame.h index 5b97e035..5b97e035 100644 --- a/ui-blame.h +++ b/www/git.causal.agency/cgit/ui-blame.h diff --git a/ui-blob.c b/www/git.causal.agency/cgit/ui-blob.c index c10ae42e..c10ae42e 100644 --- a/ui-blob.c +++ b/www/git.causal.agency/cgit/ui-blob.c diff --git a/ui-blob.h b/www/git.causal.agency/cgit/ui-blob.h index 16847b20..16847b20 100644 --- a/ui-blob.h +++ b/www/git.causal.agency/cgit/ui-blob.h diff --git a/ui-clone.c b/www/git.causal.agency/cgit/ui-clone.c index 5dccb639..5dccb639 100644 --- a/ui-clone.c +++ b/www/git.causal.agency/cgit/ui-clone.c diff --git a/ui-clone.h b/www/git.causal.agency/cgit/ui-clone.h index 3e460a3d..3e460a3d 100644 --- a/ui-clone.h +++ b/www/git.causal.agency/cgit/ui-clone.h diff --git a/ui-commit.c b/www/git.causal.agency/cgit/ui-commit.c index 948118c4..b49259e6 100644 --- a/ui-commit.c +++ b/www/git.causal.agency/cgit/ui-commit.c @@ -39,10 +39,11 @@ void cgit_print_commit(char *hex, const char *prefix) } info = cgit_parse_commit(commit); - format_display_notes(&oid, ¬es, PAGE_ENCODING, 0); + format_display_notes(&oid, ¬es, PAGE_ENCODING, 1); load_ref_decorations(NULL, DECORATE_FULL_REFS); + ctx.page.title = fmtalloc("%s - %s", info->subject, ctx.page.title); cgit_print_layout_start(); cgit_print_diff_ctrls(); html("<table summary='commit info' class='commit-info'>\n"); @@ -120,11 +121,11 @@ void cgit_print_commit(char *hex, const char *prefix) cgit_close_filter(ctx.repo->commit_filter); show_commit_decorations(commit); html("</div>"); - html("<div class='commit-msg'>"); + html("<pre class='commit-msg'>"); cgit_open_filter(ctx.repo->commit_filter); html_txt(info->msg); cgit_close_filter(ctx.repo->commit_filter); - html("</div>"); + html("</pre>"); if (notes.len != 0) { html("<div class='notes-header'>Notes</div>"); html("<div class='notes'>"); diff --git a/ui-commit.h b/www/git.causal.agency/cgit/ui-commit.h index 8198b4ba..8198b4ba 100644 --- a/ui-commit.h +++ b/www/git.causal.agency/cgit/ui-commit.h diff --git a/ui-diff.c b/www/git.causal.agency/cgit/ui-diff.c index 5ed5990c..2a64ae8f 100644 --- a/ui-diff.c +++ b/www/git.causal.agency/cgit/ui-diff.c @@ -231,11 +231,11 @@ static void print_line(char *line, int len) else if (line[0] == '@') class = "hunk"; - htmlf("<div class='%s'>", class); + htmlf("<span class='%s'>", class); line[len-1] = '\0'; html_txt(line); - html("</div>"); line[len-1] = c; + html("</span>\n"); } static void header(const struct object_id *oid1, char *path1, int mode1, @@ -245,22 +245,23 @@ static void header(const struct object_id *oid1, char *path1, int mode1, int subproject; subproject = (S_ISGITLINK(mode1) || S_ISGITLINK(mode2)); - html("<div class='head'>"); + html("<span class='head'>"); html("diff --git a/"); html_txt(path1); html(" b/"); html_txt(path2); + html("\n"); if (mode1 == 0) - htmlf("<br/>new file mode %.6o", mode2); + htmlf("new file mode %.6o\n", mode2); if (mode2 == 0) - htmlf("<br/>deleted file mode %.6o", mode1); + htmlf("deleted file mode %.6o\n", mode1); if (!subproject) { abbrev1 = xstrdup(find_unique_abbrev(oid1, DEFAULT_ABBREV)); abbrev2 = xstrdup(find_unique_abbrev(oid2, DEFAULT_ABBREV)); - htmlf("<br/>index %s..%s", abbrev1, abbrev2); + htmlf("index %s..%s", abbrev1, abbrev2); free(abbrev1); free(abbrev2); if (mode1 != 0 && mode2 != 0) { @@ -268,28 +269,31 @@ static void header(const struct object_id *oid1, char *path1, int mode1, if (mode2 != mode1) htmlf("..%.6o", mode2); } + html("\n"); if (is_null_oid(oid1)) { path1 = "dev/null"; - html("<br/>--- /"); + html("--- /"); } else - html("<br/>--- a/"); + html("--- a/"); if (mode1 != 0) cgit_tree_link(path1, NULL, NULL, ctx.qry.head, oid_to_hex(old_rev_oid), path1); else html_txt(path1); + html("\n"); if (is_null_oid(oid2)) { path2 = "dev/null"; - html("<br/>+++ /"); + html("+++ /"); } else - html("<br/>+++ b/"); + html("+++ b/"); if (mode2 != 0) cgit_tree_link(path2, NULL, NULL, ctx.qry.head, oid_to_hex(new_rev_oid), path2); else html_txt(path2); + html("\n"); } - html("</div>"); + html("</span>"); } static void filepair_cb(struct diff_filepair *pair) @@ -488,12 +492,12 @@ void cgit_print_diff(const char *new_rev, const char *old_rev, html("<table summary='ssdiff' class='ssdiff'>"); } else { html("<table summary='diff' class='diff'>"); - html("<tr><td>"); + html("<tr><td><pre>"); } cgit_diff_tree(old_rev_oid, new_rev_oid, filepair_cb, prefix, ctx.qry.ignorews); if (!use_ssdiff) - html("</td></tr>"); + html("</pre></td></tr>"); html("</table>"); if (show_ctrls) diff --git a/ui-diff.h b/www/git.causal.agency/cgit/ui-diff.h index 39264a16..39264a16 100644 --- a/ui-diff.h +++ b/www/git.causal.agency/cgit/ui-diff.h diff --git a/ui-log.c b/www/git.causal.agency/cgit/ui-log.c index 20774bf8..b443ca73 100644 --- a/ui-log.c +++ b/www/git.causal.agency/cgit/ui-log.c @@ -75,11 +75,13 @@ void show_commit_decorations(struct commit *commit) * don't display anything. */ break; case DECORATION_REF_LOCAL: + html(" "); cgit_log_link(buf, NULL, "branch-deco", buf, NULL, ctx.qry.vpath, 0, NULL, NULL, ctx.qry.showmsg, 0); break; case DECORATION_REF_TAG: + html(" "); if (!read_ref(deco->name, &oid_tag) && !peel_iterated_oid(&oid_tag, &peeled)) is_annotated = !oideq(&oid_tag, &peeled); cgit_tag_link(buf, NULL, is_annotated ? "tag-annotated-deco" : "tag-deco", buf); @@ -87,12 +89,14 @@ void show_commit_decorations(struct commit *commit) case DECORATION_REF_REMOTE: if (!ctx.repo->enable_remote_branches) break; + html(" "); cgit_log_link(buf, NULL, "remote-deco", NULL, oid_to_hex(&commit->object.oid), ctx.qry.vpath, 0, NULL, NULL, ctx.qry.showmsg, 0); break; default: + html(" "); cgit_commit_link(buf, NULL, "deco", ctx.qry.head, oid_to_hex(&commit->object.oid), ctx.qry.vpath); diff --git a/ui-log.h b/www/git.causal.agency/cgit/ui-log.h index 325607cd..325607cd 100644 --- a/ui-log.h +++ b/www/git.causal.agency/cgit/ui-log.h diff --git a/ui-patch.c b/www/git.causal.agency/cgit/ui-patch.c index 4ac03cbe..4ac03cbe 100644 --- a/ui-patch.c +++ b/www/git.causal.agency/cgit/ui-patch.c diff --git a/ui-patch.h b/www/git.causal.agency/cgit/ui-patch.h index 7a6cacd5..7a6cacd5 100644 --- a/ui-patch.h +++ b/www/git.causal.agency/cgit/ui-patch.h diff --git a/ui-plain.c b/www/git.causal.agency/cgit/ui-plain.c index 65a205fa..65a205fa 100644 --- a/ui-plain.c +++ b/www/git.causal.agency/cgit/ui-plain.c diff --git a/ui-plain.h b/www/git.causal.agency/cgit/ui-plain.h index 5bff07b8..5bff07b8 100644 --- a/ui-plain.h +++ b/www/git.causal.agency/cgit/ui-plain.h diff --git a/ui-refs.c b/www/git.causal.agency/cgit/ui-refs.c index 456f610d..456f610d 100644 --- a/ui-refs.c +++ b/www/git.causal.agency/cgit/ui-refs.c diff --git a/ui-refs.h b/www/git.causal.agency/cgit/ui-refs.h index 1d4a54a2..1d4a54a2 100644 --- a/ui-refs.h +++ b/www/git.causal.agency/cgit/ui-refs.h diff --git a/ui-repolist.c b/www/git.causal.agency/cgit/ui-repolist.c index 529a2038..97b11c5f 100644 --- a/ui-repolist.c +++ b/www/git.causal.agency/cgit/ui-repolist.c @@ -321,7 +321,7 @@ void cgit_print_repolist(void) } htmlf("<tr><td class='%s'>", !sorted && section ? "sublevel-repo" : "toplevel-repo"); - cgit_summary_link(ctx.repo->name, ctx.repo->name, NULL, NULL); + cgit_summary_link(ctx.repo->name, NULL, NULL, NULL); html("</td><td>"); repourl = cgit_repourl(ctx.repo->url); html_link_open(repourl, NULL, NULL); @@ -353,8 +353,10 @@ void cgit_print_repolist(void) if (ctx.cfg.enable_index_links) { html("<td>"); cgit_summary_link("summary", NULL, "button", NULL); + html(" "); cgit_log_link("log", NULL, "button", NULL, NULL, NULL, 0, NULL, NULL, ctx.qry.showmsg, 0); + html(" "); cgit_tree_link("tree", NULL, "button", NULL, NULL, NULL); html("</td>"); } diff --git a/ui-repolist.h b/www/git.causal.agency/cgit/ui-repolist.h index 1b6b3227..1b6b3227 100644 --- a/ui-repolist.h +++ b/www/git.causal.agency/cgit/ui-repolist.h diff --git a/ui-shared.c b/www/git.causal.agency/cgit/ui-shared.c index acd8ab55..dfaf5952 100644 --- a/ui-shared.c +++ b/www/git.causal.agency/cgit/ui-shared.c @@ -835,7 +835,7 @@ void cgit_print_docend(void) if (ctx.cfg.footer) html_include(ctx.cfg.footer); else { - htmlf("<div class='footer'>generated by <a href='https://git.zx2c4.com/cgit/about/'>cgit %s</a> " + htmlf("<div class='footer'>generated by <a href='https://git.causal.agency/src/log/www/git.causal.agency/cgit'>cgit %s</a> " "(<a href='https://git-scm.com/'>git %s</a>) at ", cgit_version, git_version_string); html_txt(show_date(time(NULL), 0, cgit_date_mode(DATE_ISO8601))); html("</div>\n"); @@ -894,6 +894,15 @@ void cgit_add_clone_urls(void (*fn)(const char *)) add_clone_urls(fn, ctx.cfg.clone_prefix, ctx.repo->url); } +static int print_this_commit_option(void) +{ + struct object_id oid; + if (!ctx.qry.head || get_oid(ctx.qry.head, &oid)) + return 1; + html_option(oid_to_hex(&oid), "this commit", ctx.qry.head); + return 0; +} + static int print_branch_option(const char *refname, const struct object_id *oid, int flags, void *cb_data) { @@ -995,15 +1004,18 @@ static void print_header(void) if (ctx.repo) { cgit_index_link("index", NULL, NULL, NULL, NULL, 0, 1); html(" : "); - cgit_summary_link(ctx.repo->name, ctx.repo->name, NULL, NULL); + cgit_summary_link(ctx.repo->name, NULL, NULL, NULL); if (ctx.env.authenticated) { html("</td><td class='form'>"); html("<form method='get'>\n"); cgit_add_hidden_formfields(0, 1, ctx.qry.page); html("<select name='h' onchange='this.form.submit();'>\n"); + print_this_commit_option(); + html("<optgroup label='branches'>"); for_each_branch_ref(print_branch_option, ctx.qry.head); if (ctx.repo->enable_remote_branches) for_each_remote_ref(print_branch_option, ctx.qry.head); + html("</optgroup>"); html("</select> "); html("<input type='submit' value='switch'/>"); html("</form>"); @@ -1016,7 +1028,13 @@ static void print_header(void) if (ctx.repo) { html_txt(ctx.repo->desc); html("</td><td class='sub right'>"); - html_txt(ctx.repo->owner); + if (ctx.repo->owner_filter) { + cgit_open_filter(ctx.repo->owner_filter); + html_txt(ctx.repo->owner); + cgit_close_filter(ctx.repo->owner_filter); + } else { + html_txt(ctx.repo->owner); + } } else { if (ctx.cfg.root_desc) html_txt(ctx.cfg.root_desc); @@ -1032,32 +1050,41 @@ void cgit_print_pageheader(void) html("<table class='tabs'><tr><td>\n"); if (ctx.env.authenticated && ctx.repo) { - if (ctx.repo->readme.nr) + if (ctx.repo->readme.nr) { reporevlink("about", "about", NULL, hc("about"), ctx.qry.head, NULL, NULL); + html(" "); + } cgit_summary_link("summary", NULL, hc("summary"), ctx.qry.head); + html(" "); cgit_refs_link("refs", NULL, hc("refs"), ctx.qry.head, ctx.qry.oid, NULL); + html(" "); cgit_log_link("log", NULL, hc("log"), ctx.qry.head, NULL, ctx.qry.vpath, 0, NULL, NULL, ctx.qry.showmsg, ctx.qry.follow); + html(" "); if (ctx.qry.page && !strcmp(ctx.qry.page, "blame")) cgit_blame_link("blame", NULL, hc("blame"), ctx.qry.head, ctx.qry.oid, ctx.qry.vpath); else cgit_tree_link("tree", NULL, hc("tree"), ctx.qry.head, ctx.qry.oid, ctx.qry.vpath); + html(" "); cgit_commit_link("commit", NULL, hc("commit"), ctx.qry.head, ctx.qry.oid, ctx.qry.vpath); + html(" "); cgit_diff_link("diff", NULL, hc("diff"), ctx.qry.head, ctx.qry.oid, ctx.qry.oid2, ctx.qry.vpath); - if (ctx.repo->max_stats) + if (ctx.repo->max_stats) { + html(" "); cgit_stats_link("stats", NULL, hc("stats"), ctx.qry.head, ctx.qry.vpath); + } if (ctx.repo->homepage) { - html("<a href='"); + html(" <a href='"); html_attr(ctx.repo->homepage); html("'>homepage</a>"); } @@ -1201,9 +1228,12 @@ void cgit_set_title_from_path(const char *path) if (!path) return; - for (last_slash = path + strlen(path); (slash = memrchr(path, '/', last_slash - path)) != NULL; last_slash = slash) { + last_slash = path + strlen(path); + for (slash = last_slash; slash > path; --slash) { + if (*slash != '/') continue; strbuf_add(&sb, slash + 1, last_slash - slash - 1); strbuf_addstr(&sb, " \xc2\xab "); + last_slash = slash; } strbuf_add(&sb, path, last_slash - path); strbuf_addf(&sb, " - %s", ctx.page.title); diff --git a/ui-shared.h b/www/git.causal.agency/cgit/ui-shared.h index 6964873a..6964873a 100644 --- a/ui-shared.h +++ b/www/git.causal.agency/cgit/ui-shared.h diff --git a/ui-snapshot.c b/www/git.causal.agency/cgit/ui-snapshot.c index 18361a65..28013935 100644 --- a/ui-snapshot.c +++ b/www/git.causal.agency/cgit/ui-snapshot.c @@ -37,6 +37,9 @@ static int write_archive_type(const char *format, const char *hex, const char *p /* strvec guarantees a trailing NULL entry. */ memcpy(nargv, argv.v, sizeof(char *) * (argv.nr + 1)); + if (fflush(stdout)) + return errno; + result = write_archive(argv.nr, nargv, NULL, the_repository, NULL, 0); strvec_clear(&argv); free(nargv); diff --git a/ui-snapshot.h b/www/git.causal.agency/cgit/ui-snapshot.h index a8deec36..a8deec36 100644 --- a/ui-snapshot.h +++ b/www/git.causal.agency/cgit/ui-snapshot.h diff --git a/ui-ssdiff.c b/www/git.causal.agency/cgit/ui-ssdiff.c index af8bc9e0..af8bc9e0 100644 --- a/ui-ssdiff.c +++ b/www/git.causal.agency/cgit/ui-ssdiff.c diff --git a/ui-ssdiff.h b/www/git.causal.agency/cgit/ui-ssdiff.h index 11f27144..11f27144 100644 --- a/ui-ssdiff.h +++ b/www/git.causal.agency/cgit/ui-ssdiff.h diff --git a/ui-stats.c b/www/git.causal.agency/cgit/ui-stats.c index 09b3625e..09b3625e 100644 --- a/ui-stats.c +++ b/www/git.causal.agency/cgit/ui-stats.c diff --git a/ui-stats.h b/www/git.causal.agency/cgit/ui-stats.h index 0e61b03d..0e61b03d 100644 --- a/ui-stats.h +++ b/www/git.causal.agency/cgit/ui-stats.h diff --git a/ui-summary.c b/www/git.causal.agency/cgit/ui-summary.c index 947812a8..947812a8 100644 --- a/ui-summary.c +++ b/www/git.causal.agency/cgit/ui-summary.c diff --git a/ui-summary.h b/www/git.causal.agency/cgit/ui-summary.h index cba696af..cba696af 100644 --- a/ui-summary.h +++ b/www/git.causal.agency/cgit/ui-summary.h diff --git a/ui-tag.c b/www/git.causal.agency/cgit/ui-tag.c index 424bbccd..05952429 100644 --- a/ui-tag.c +++ b/www/git.causal.agency/cgit/ui-tag.c @@ -25,9 +25,9 @@ static void print_tag_content(char *buf) html_txt(buf); html("</div>"); if (p) { - html("<div class='commit-msg'>"); + html("<pre class='commit-msg'>"); html_txt(++p); - html("</div>"); + html("</pre>"); } } diff --git a/ui-tag.h b/www/git.causal.agency/cgit/ui-tag.h index d295cdcd..d295cdcd 100644 --- a/ui-tag.h +++ b/www/git.causal.agency/cgit/ui-tag.h diff --git a/ui-tree.c b/www/git.causal.agency/cgit/ui-tree.c index b61f6f54..21e0b884 100644 --- a/ui-tree.c +++ b/www/git.causal.agency/cgit/ui-tree.c @@ -89,6 +89,7 @@ static void print_object(const struct object_id *oid, const char *path, const ch enum object_type type; char *buf; unsigned long size; + int is_binary; type = oid_object_info(the_repository, oid, &size); if (type == OBJ_BAD) { @@ -103,6 +104,7 @@ static void print_object(const struct object_id *oid, const char *path, const ch "Error reading object %s", oid_to_hex(oid)); return; } + is_binary = buffer_is_binary(buf, size); cgit_set_title_from_path(path); @@ -110,7 +112,7 @@ static void print_object(const struct object_id *oid, const char *path, const ch htmlf("blob: %s (", oid_to_hex(oid)); cgit_plain_link("plain", NULL, NULL, ctx.qry.head, rev, path); - if (ctx.repo->enable_blame) { + if (ctx.repo->enable_blame && !is_binary) { html(") ("); cgit_blame_link("blame", NULL, NULL, ctx.qry.head, rev, path); @@ -123,7 +125,7 @@ static void print_object(const struct object_id *oid, const char *path, const ch return; } - if (buffer_is_binary(buf, size)) + if (is_binary) print_binary_buffer(buf, size); else print_text_buffer(basename, buf, size); @@ -202,9 +204,11 @@ static int ls_item(const struct object_id *oid, struct strbuf *base, struct walk_tree_context *walk_tree_ctx = cbdata; char *name; struct strbuf fullpath = STRBUF_INIT; + struct strbuf linkpath = STRBUF_INIT; struct strbuf class = STRBUF_INIT; enum object_type type; unsigned long size = 0; + char *buf; name = xstrdup(pathname); strbuf_addf(&fullpath, "%s%s%s", ctx.qry.path ? ctx.qry.path : "", @@ -216,8 +220,7 @@ static int ls_item(const struct object_id *oid, struct strbuf *base, htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>", name, oid_to_hex(oid)); - free(name); - return 0; + goto cleanup; } } @@ -237,22 +240,45 @@ static int ls_item(const struct object_id *oid, struct strbuf *base, cgit_tree_link(name, NULL, class.buf, ctx.qry.head, walk_tree_ctx->curr_rev, fullpath.buf); } + if (S_ISLNK(mode)) { + html(" -> "); + buf = read_object_file(oid, &type, &size); + if (!buf) { + htmlf("Error reading object: %s", oid_to_hex(oid)); + goto cleanup; + } + strbuf_addbuf(&linkpath, &fullpath); + strbuf_addf(&linkpath, "/../%s", buf); + strbuf_normalize_path(&linkpath); + cgit_tree_link(buf, NULL, class.buf, ctx.qry.head, + walk_tree_ctx->curr_rev, linkpath.buf); + free(buf); + strbuf_release(&linkpath); + } htmlf("</td><td class='ls-size'>%li</td>", size); html("<td>"); cgit_log_link("log", NULL, "button", ctx.qry.head, walk_tree_ctx->curr_rev, fullpath.buf, 0, NULL, NULL, ctx.qry.showmsg, 0); - if (ctx.repo->max_stats) + if (ctx.repo->max_stats) { + html(" "); cgit_stats_link("stats", NULL, "button", ctx.qry.head, fullpath.buf); - if (!S_ISGITLINK(mode)) + } + if (!S_ISGITLINK(mode)) { + html(" "); cgit_plain_link("plain", NULL, "button", ctx.qry.head, walk_tree_ctx->curr_rev, fullpath.buf); - if (!S_ISDIR(mode) && ctx.repo->enable_blame) + } + if (!S_ISDIR(mode) && ctx.repo->enable_blame) { + html(" "); cgit_blame_link("blame", NULL, "button", ctx.qry.head, walk_tree_ctx->curr_rev, fullpath.buf); + } html("</td></tr>\n"); + +cleanup: free(name); strbuf_release(&fullpath); strbuf_release(&class); diff --git a/ui-tree.h b/www/git.causal.agency/cgit/ui-tree.h index bbd34e35..bbd34e35 100644 --- a/ui-tree.h +++ b/www/git.causal.agency/cgit/ui-tree.h diff --git a/www/git.causal.agency/cgitrc b/www/git.causal.agency/cgitrc new file mode 100644 index 00000000..8ccd7c72 --- /dev/null +++ b/www/git.causal.agency/cgitrc @@ -0,0 +1,29 @@ +root-title=causal agency +root-desc=“I think some people from the Gentoo project are behind this.†+logo= + +clone-url=https://$HTTP_HOST/$CGIT_REPO_URL +snapshots=tar.gz zip + +enable-blame=1 +enable-commit-graph=1 +enable-subject-links=1 +enable-follow-links=1 +enable-index-owner=0 +repository-sort=age +branch-sort=age + +css=/custom.css +email-filter=/usr/local/libexec/cgit-email +about-filter=/usr/local/libexec/about-filter +source-filter=/usr/local/libexec/source-filter +owner-filter=/usr/local/libexec/owner-filter + +readme=:README.7 +readme=:README + +remove-suffix=1 +enable-git-config=1 +scan-path=/home/june/pub + +cache-size=1024 diff --git a/www/git.causal.agency/custom.css b/www/git.causal.agency/custom.css new file mode 100644 index 00000000..3bc61c90 --- /dev/null +++ b/www/git.causal.agency/custom.css @@ -0,0 +1,86 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at https://mozilla.org/MPL/2.0/. */ + +@import url("cgit.css"); + +* { line-height: 1.25em; } + +div#cgit { + max-width: 117ch; + margin: auto; + font-family: monospace; + -moz-tab-size: 4; + tab-size: 4; +} + +div#cgit table#header td.sub { + border-top: none; +} +div#cgit table#header td.sub.right { + padding-right: 1em; +} +div#cgit table.tabs { + border-bottom: none; +} +div#cgit div.content { + border-bottom: none; +} +div#cgit table.list th a { + color: inherit; +} +div#cgit table.list tr:nth-child(even) { + background: inherit; +} +div#cgit table.list tr:hover { + background: inherit; +} +div#cgit table.list tr.nohover-highlight:hover:nth-child(even) { + background: inherit; +} + +div#cgit table.blob td.linenumbers a:target { + color: goldenrod; + text-decoration: underline; + outline: none; +} + +div#cgit div#summary { + max-width: 80ch; +} + +/* for hilex(1) */ +div#cgit pre .Ke { color: dimgray; } +div#cgit pre .Ma { color: green; } +div#cgit pre .Co { color: navy; } +div#cgit pre .St { color: teal; } +div#cgit pre .Fo { color: teal; font-weight: bold; } +div#cgit pre .Su { color: olive; } + +/* for htagml(1) */ +div#cgit pre a.tag { color: inherit; text-decoration: underline; } +div#cgit pre a.tag:target { color: goldenrod; outline: none; } + +/* for mandoc(1) */ +table.head, table.foot { width: 100%; } +td.head-rtitle, td.foot-os { text-align: right; } +td.head-vol { text-align: center; } +div.Pp { margin: 1ex 0ex; } +div.Nd, div.Bf, div.Op { display: inline; } +span.Pa, span.Ad { font-style: italic; } +span.Ms { font-weight: bold; } +dl.Bl-diag > dt { font-weight: bold; } +code.Nm, code.Fl, code.Cm, code.Ic, code.In, code.Fd, code.Fn, +code.Cd { font-weight: bold; font-family: inherit; } + +h1.Sh { font-size: 1.5em; } +table.Nm td:first-child { padding-right: 1ch; } +code.Fl { white-space: nowrap; } +span.RsT { font-style: italic; } +dl.Bl-tag:not(.Bl-compact) dt { margin-top: 1em; } +ul.Bl-bullet:not(.Bl-compact) li { margin-top: 1em; } +div.Bd-indent { margin-left: 4ch; } +table.Bl-column { width: 100%; } +table.foot { margin-top: 1em; } + +div#cgit a.permalink { color: inherit; } diff --git a/www/git.causal.agency/owner-filter.sh b/www/git.causal.agency/owner-filter.sh new file mode 100644 index 00000000..18e74cf1 --- /dev/null +++ b/www/git.causal.agency/owner-filter.sh @@ -0,0 +1,6 @@ +#!/bin/sh +set -eu + +cat <<EOF +<a href="https://liberapay.com/june/donate"><img alt="Donate using Liberapay" src="https://liberapay.com/assets/widgets/donate.svg"></a> +EOF diff --git a/www/git.causal.agency/source-filter.sh b/www/git.causal.agency/source-filter.sh new file mode 100644 index 00000000..514272db --- /dev/null +++ b/www/git.causal.agency/source-filter.sh @@ -0,0 +1,25 @@ +#!/bin/sh +set -eu + +ctags=/usr/bin/ctags +mtags=/usr/local/libexec/mtags +hilex=/usr/local/libexec/hilex +htagml=/usr/local/libexec/htagml + +case "$1" in + (*.[chlmy]|Makefile|*.mk|*.[1-9]|.profile|.shrc|*.sh) + tmp=$(mktemp -d -t source-filter) + trap 'rm -fr "${tmp}"' EXIT + cd "${tmp}" + cat >"$1" + touch tags + case "$1" in + (*.[chlmy]) $ctags -w "$1";; + (*) $mtags "$1";; + esac + $hilex -f html "$1" | $htagml -i "$1" + ;; + (*) + exec $hilex -t -n "$1" -f html + ;; +esac diff --git a/www/temp.causal.agency/.gitignore b/www/temp.causal.agency/.gitignore new file mode 100644 index 00000000..e31ee94e --- /dev/null +++ b/www/temp.causal.agency/.gitignore @@ -0,0 +1 @@ +up diff --git a/www/temp.causal.agency/Makefile b/www/temp.causal.agency/Makefile new file mode 100644 index 00000000..3e908305 --- /dev/null +++ b/www/temp.causal.agency/Makefile @@ -0,0 +1,16 @@ +WEBROOT = /usr/local/www/temp.causal.agency + +CFLAGS += -std=c11 -Wall -Wextra -Wpedantic -I/usr/local/include +LDFLAGS += -static -L/usr/local/lib +LDLIBS = -lkcgihtml -lkcgi -lz -lmd + +up: + +clean: + rm -f up + +install: up + install -m 700 up ${WEBROOT}/up + +uninstall: + rm -f ${WEBROOT}/up diff --git a/www/temp.causal.agency/up.c b/www/temp.causal.agency/up.c new file mode 100644 index 00000000..885b8acd --- /dev/null +++ b/www/temp.causal.agency/up.c @@ -0,0 +1,156 @@ +/* Copyright (C) 2020 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <err.h> +#include <fcntl.h> +#include <stdarg.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/capsicum.h> +#include <sys/types.h> +#include <sysexits.h> +#include <time.h> +#include <unistd.h> + +#include <kcgi.h> +#include <kcgihtml.h> + +static int cwd = -1; + +static const struct kvalid Key = { NULL, "file" }; + +static enum kcgi_err head(struct kreq *req, enum khttp http, enum kmime mime) { + return khttp_head(req, kresps[KRESP_STATUS], "%s", khttps[http]) + || khttp_head(req, kresps[KRESP_CONTENT_TYPE], "%s", kmimetypes[mime]); +} + +static enum kcgi_err fail(struct kreq *req, enum khttp http) { + return head(req, http, KMIME_TEXT_PLAIN) + || khttp_body(req) + || khttp_printf(req, "%s\n", khttps[http]); +} + +static enum kcgi_err handle(struct kreq *req) { + if (req->page) return fail(req, KHTTP_404); + + if (req->method == KMETHOD_GET) { + struct khtmlreq html; + struct khtmlreq *h = &html; + return head(req, KHTTP_200, KMIME_TEXT_HTML) + || khttp_body(req) + || khtml_open(h, req, 0) + || khtml_elem(h, KELEM_DOCTYPE) + || khtml_elem(h, KELEM_TITLE) + || khtml_puts(h, "Upload") + || khtml_closeelem(h, 1) + || khtml_attr( + h, KELEM_FORM, + KATTR_METHOD, "post", + KATTR_ACTION, "", + KATTR_ENCTYPE, "multipart/form-data", + KATTR__MAX + ) + || khtml_attr( + h, KELEM_INPUT, + KATTR_TYPE, "file", + KATTR_NAME, Key.name, + KATTR__MAX + ) + || khtml_attr( + h, KELEM_INPUT, + KATTR_TYPE, "submit", + KATTR_VALUE, "Upload", + KATTR__MAX + ) + || khtml_close(h); + + } else if (req->method == KMETHOD_POST) { + struct kpair *field = req->fieldmap[0]; + if (!field || !field->valsz) return fail(req, KHTTP_400); + + char name[256]; + const char *ext = strrchr(field->file, '.'); + if (!ext) ext = ""; + snprintf( + name, sizeof(name), "%jx%08x%s", + (intmax_t)time(NULL), arc4random(), ext + ); + + int fd = openat(cwd, name, O_CREAT | O_EXCL | O_WRONLY, 0644); + if (fd < 0) { + warn("openat"); + return fail(req, KHTTP_507); + } + ssize_t len = write(fd, field->val, field->valsz); + int error = close(fd); + if (len < 0 || error) { + warn("write"); + return fail(req, KHTTP_507); + } + + return head(req, KHTTP_303, KMIME_TEXT_PLAIN) + || khttp_head(req, kresps[KRESP_LOCATION], "/%s", name) + || khttp_body(req) + || khttp_puts(req, name); + + } else { + return fail(req, KHTTP_405); + } +} + +static void sandbox(void) { + cwd = open(".", O_DIRECTORY); + if (cwd < 0) err(EX_CONFIG, "."); + + int error = cap_enter(); + if (error) err(EX_OSERR, "cap_enter"); + + cap_rights_t rights; + cap_rights_init(&rights, CAP_LOOKUP, CAP_CREATE, CAP_PWRITE); + error = cap_rights_limit(cwd, &rights); + if (error) err(EX_OSERR, "cap_rights_limit"); +} + +int main(void) { + const char *page = "up"; + if (khttp_fcgi_test()) { + struct kfcgi *fcgi; + enum kcgi_err error = khttp_fcgi_init(&fcgi, &Key, 1, &page, 1, 0); + if (error) errx(EX_CONFIG, "khttp_fcgi_init: %s", kcgi_strerror(error)); + sandbox(); + for ( + struct kreq req; + KCGI_OK == (error = khttp_fcgi_parse(fcgi, &req)); + khttp_free(&req) + ) { + error = handle(&req); + if (error && error != KCGI_HUP) break; + } + if (error != KCGI_EXIT) { + errx(EX_PROTOCOL, "khttp_fcgi_parse: %s", kcgi_strerror(error)); + } + khttp_fcgi_free(fcgi); + } else { + struct kreq req; + enum kcgi_err error = khttp_parse(&req, &Key, 1, &page, 1, 0); + if (error) errx(EX_PROTOCOL, "khttp_parse: %s", kcgi_strerror(error)); + error = handle(&req); + if (error) errx(EX_PROTOCOL, "%s", kcgi_strerror(error)); + khttp_free(&req); + } +} diff --git a/www/text.causal.agency/.gitignore b/www/text.causal.agency/.gitignore new file mode 100644 index 00000000..8fe3acc9 --- /dev/null +++ b/www/text.causal.agency/.gitignore @@ -0,0 +1,3 @@ +*.txt +feed.atom +igp diff --git a/www/text.causal.agency/001-make.7 b/www/text.causal.agency/001-make.7 new file mode 100644 index 00000000..b4805729 --- /dev/null +++ b/www/text.causal.agency/001-make.7 @@ -0,0 +1,159 @@ +.Dd September 17, 2018 +.Dt MAKE 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm Using Make +.Nd writing less Makefile +. +.Sh DESCRIPTION +Let's talk about +.Xr make 1 . +I think an important thing to know about +.Xr make 1 +is that you don't need to write a +.Pa Makefile +to use it. +There are default rules +for C, C++ and probably Fortran. +To build +.Pa foo +from +.Pa foo.c , +just run: +. +.Pp +.Dl make foo +. +.Pp +The default rule for C files uses the +.Ev CFLAGS +variable, +so you can set that in the environment +to pass flags to the C compiler: +. +.Pp +.Dl CFLAGS=-Wall make foo +. +.Pp +It also uses +.Ev LDLIBS +for linking, +so you can add libraries with: +. +.Pp +.Dl LDLIBS=-lcurses make foo +. +.Pp +Obviously writing this every time +would become tedious, +so it might be time to write a +.Pa Makefile . +But it really doesn't need much: +. +.Bd -literal -offset indent +CFLAGS += -Wall -Wextra +LDLIBS = -lcurses + +foo: +.Ed +. +.Pp +Assigning +.Ev CFLAGS +with +.Ql += +preserves the system default +or anything passed in the environment. +Declaring +.Pa foo +as the first rule +makes it the default when +.Ql make +is run without a target. +Note that the rule doesn't need a definition; +the default will still be used. +. +.Pp +If +.Pa foo +is built from serveral source files, +unfortunately a rule definition is required: +. +.Bd -literal -offset indent +OBJS = foo.o bar.o baz.o + +foo: $(OBJS) + $(CC) $(LDFLAGS) $(OBJS) $(LDLIBS) -o $@ +.Ed +. +.Pp +This rule uses +.Ev LDFLAGS +for passing linker flags, +which is what the default rule does. +The +.Ql $@ +variable here expands to +.Ql foo , +so this rule can be copied easily +for other binary targets. +. +.Pp +If some sources depend on a header file, +they can be automatically rebuilt +when the header changes +by declaring a dependency rule: +. +.Pp +.Dl foo.o bar.o: foo.h +. +.Pp +Note that several files can appear +either side of the +.Ql ":" . +. +.Pp +Lastly, +it's always nice to add a +.Cm clean +target: +. +.Bd -literal -offset indent +clean: + rm -f $(OBJS) foo +.Ed +. +.Pp +I hope this helps getting started with +.Xr make 1 +without writing too much +.Pa Makefile ! +. +.Sh EXAMPLES +The example +.Pa Makefile +in its entirety: +. +.Bd -literal -offset indent +CFLAGS += -Wall -Wextra +LDLIBS = -lcurses +OBJS = foo.o bar.o baz.o + +foo: $(OBJS) + $(CC) $(LDFLAGS) $(OBJS) $(LDLIBS) -o $@ + +foo.o bar.o: foo.h + +clean: + rm -f $(OBJS) foo +.Ed +. +.Sh AUTHORS +.An Mt june@causal.agency +. +.Pp +This document is produced from +.Xr mdoc 7 +source available from +.Lk https://git.causal.agency/src/tree/www/text.causal.agency diff --git a/www/text.causal.agency/002-writing-mdoc.7 b/www/text.causal.agency/002-writing-mdoc.7 new file mode 100644 index 00000000..b377d364 --- /dev/null +++ b/www/text.causal.agency/002-writing-mdoc.7 @@ -0,0 +1,138 @@ +.Dd September 27, 2018 +.Dt WRITING-MDOC 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm Writing mdoc +.Nd semantic markup +. +.Sh DESCRIPTION +I recently learned how to write man pages +so that I could document +a bunch of little programs I've written. +Modern man pages are written in +.Xr mdoc 7 , +whose documentation is also available from +.Lk http://mandoc.bsd.lv . +. +.Pp +.Xr mdoc 7 +differs from many other markup languages +by providing +.Dq semantic markup +rather than just +.Dq physical markup. +What this means is that +the markup indicates what something is, +not how to format it. +For example, +the +.Ql \&Ar +macro is used to indicate +command-line arguments +rather than one of the macros +for bold, italic or underline. +This frees each author of having to choose +and enables consistent presentation +across different man pages. +. +.Pp +Another advantage of semantic markup +is that information can be extracted from it. +For example, +.Xr makewhatis 8 +can easily extract the name and short description +from each man page +thanks to the +.Ql \&Nm +and +.Ql \&Nd +macros. +I use the same information +to generate an Atom feed for these documents, +though in admittedly a much less robust way than +.Xr mandoc 1 . +. +.Pp +When it comes to actually writing +.Xr mdoc 7 , +it can take some getting used to. +The language is of +.Xr roff 7 +lineage +so its syntax is very particular. +Macros cannot appear inline, +but must start on new lines +beginning with +.Ql \&. . +Sentences should likewise +always start on a new line. +Since I'm in the habit of writing with +semantic line breaks, +I actually find these requirements +fit in well. +. +.Pp +The more frustrating syntax limitation to me +is the rule against empty lines. +Without them, +it can be quite difficult to edit a lengthy document. +Thankfully, +lines with only a +.Ql \&. +on them are allowed, +but this still causes visual noise. +To alleviate that, +I have a +.Xr vim 1 +syntax file for +.Xr mdoc 7 +which conceals the lone dots: +. +.Bd -literal -offset indent +if exists("b:current_syntax") + finish +endif + +runtime! syntax/nroff.vim +unlet! b:current_syntax + +setlocal sections+=ShSs +syntax match mdocBlank /^\\.$/ conceal +setlocal conceallevel=2 + +let b:current_syntax = "mdoc" +.Ed +. +.Pp +It also adds the +.Xr mdoc 7 +section header and subsection header macros to the +.Cm sections +option to make +.Xr vim 1 Ap s +.Ic { +and +.Ic } +motions +aware of them. +. +.Pp +With that, +I've found writing man pages pleasant and rewarding. +I've started writing other documents with +.Xr mdoc 7 +as well, +as you can see here. +. +.Sh SEE ALSO +.Lk http://rhodesmill.org/brandon/2012/one-sentence-per-line/ "Semantic Linefeeds" +. +.Sh AUTHORS +.An Mt june@causal.agency +. +.Pp +This document is produced from +.Xr mdoc 7 +source available from +.Lk https://git.causal.agency/src/tree/www/text.causal.agency diff --git a/www/text.causal.agency/003-pleasant-c.7 b/www/text.causal.agency/003-pleasant-c.7 new file mode 100644 index 00000000..16030b7e --- /dev/null +++ b/www/text.causal.agency/003-pleasant-c.7 @@ -0,0 +1,120 @@ +.Dd September 30, 2018 +.Dt PLEASANT-C 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm Pleasant C +.Nd it's good, actually +. +.Sh DESCRIPTION +I've been writing a lot of C lately +and actually find it very pleasant. +I want to talk about some of its ergonomic features. +These are C99 features unless otherwise noted. +. +.Ss Initializer syntax +Struct and union initializer syntax +is well generalized. +Designators can be chained, +making initializing nested structs easy, +and all uninitialized fields are zeroed. +. +.Bd -literal -offset indent +struct { + struct pollfd fds[2]; +} loop = { + .fds[0].fd = STDIN_FILENO, + .fds[1].fd = STDOUT_FILENO, + .fds[0].events = POLLIN, + .fds[1].events = POLLOUT, +}; +.Ed +. +.Ss Variable-length arrays +VLAs can be multi-dimensional, +which can avoid manual stride multiplications +needed to index a flat +.Xr malloc 3 Ap d +array. +. +.Bd -literal -offset indent +uint8_t glyphs[len][height][width]; +fread(glyphs, height * width, len, stdin); +.Ed +. +.Ss Incomplete array types +The last field of a struct can be an +.Dq incomplete +array type, +which means it doesn't have a length. +A variable amount of space for the struct can be +.Xr malloc 3 Ap d , +or the struct can be used as +a sort of pointer with fields. +. +.Bd -literal -offset indent +struct Line { + enum Filter type; + uint8_t data[]; +} *line = &png.data[1 + lineSize()]; +.Ed +. +.Ss Anonymous struct and union fields (C11) +Members of structs or unions +which are themselves structs or unions +can be unnamed. +In that case, +each of the inner fields +is treated as a member of the outer struct or union. +This makes working with tagged unions nicer. +. +.Bd -literal -offset indent +struct Message { + enum { Foo, Bar } type; + union { + uint8_t foo; + uint32_t bar; + }; +} msg = { .type = Foo, .foo = 0xFF }; +.Ed +. +.Ss Static assert (C11) +Assertions can be made at compile time. +Most useful for checking sizes of structs. +. +.Bd -literal -offset indent +static_assert(13 == sizeof(struct PNGHeader), "PNG IHDR size"); +.Ed +. +.Ss Leading-break switch +This one is just an odd style choice +I came across that C happens to allow. +To prevent accidental fall-through +in switch statements, +you can put breaks before the case labels. +. +.Bd -literal -offset indent +while (0 < (opt = getopt(argc, argv, "h:w:"))) { + switch (opt) { + break; case 'h': height = optarg; + break; case 'w': width = optarg; + break; default: return EX_USAGE; + } +} +.Ed +. +.Sh AUTHORS +.An Mt june@causal.agency +. +.Pp +This document is produced from +.Xr mdoc 7 +source available from +.Lk https://git.causal.agency/src/tree/www/text.causal.agency +. +.Sh CAVEATS +This isn't meant to be advice. +It's just how I like to write C, +and I don't +.Dq ship +software in C. diff --git a/www/text.causal.agency/004-uloc.7 b/www/text.causal.agency/004-uloc.7 new file mode 100644 index 00000000..edd78d80 --- /dev/null +++ b/www/text.causal.agency/004-uloc.7 @@ -0,0 +1,64 @@ +.Dd December 14, 2018 +.Dt ULOC 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm ULOC +.Nd unique lines of code +. +.Sh DESCRIPTION +There are many tools available +which measure SLOC: source lines of code. +These tools are strangely complex +for what they intend to do, +which is to estimate the relative sizes of projects. +They perform some amount of parsing +in order to discount comments in various languages, +and for reasons unknown each format their ouput +in some oddly encumbered way. +. +.Pp +I propose a much simpler method +of estimating relative sizes of projects: +unique lines of code. +ULOC can be calculated with standard tools as follows: +. +.Bd -literal -offset indent +sort -u *.h *.c | wc -l +.Ed +. +.Pp +In my opinion, +the number this produces +should be a better estimate of +the complexity of a project. +Compared to SLOC, +not only are blank lines discounted, +but so are close-brace lines +and other repetitive code +such as common includes. +On the other hand, +ULOC counts comments, +which require just as much maintenance +as the code around them does, +while avoiding inflating the result +with license headers which appear in every file, +for example. +. +.Pp +It can also be amusing +to read all of your code sorted alphabetically. +. +.Sh AUTHORS +.An Mt june@causal.agency +. +.Pp +This document is produced from +.Xr mdoc 7 +source available from +.Lk https://git.causal.agency/src/tree/www/text.causal.agency +. +.Sh CAVEATS +Estimates such as these +should not be used for decision making +as if they were data. diff --git a/www/text.causal.agency/005-testing-c.7 b/www/text.causal.agency/005-testing-c.7 new file mode 100644 index 00000000..d0c636ff --- /dev/null +++ b/www/text.causal.agency/005-testing-c.7 @@ -0,0 +1,73 @@ +.Dd December 21, 2018 +.Dt TESTING-C 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm Testing C +.Nd a simple unit testing setup +. +.Sh DESCRIPTION +This is a simple approach +to unit testing in C +that I've used in a couple projects. +At the bottom of a C file +with some code I want to test, +I add: +. +.Bd -literal -offset indent +#ifdef TEST +#include <assert.h> + +int main(void) { + assert(...); + assert(...); +} + +#endif +.Ed +. +.Pp +This file normally produces a +.Pa .o +to be linked into the main binary. +For testing, +I produce separate binaries +and run them with +.Xr make 1 : +. +.Bd -literal -offset indent +TESTS = foo.t bar.t + +\&.SUFFIXES: .t + +\&.c.t: + $(CC) $(CFLAGS) -DTEST $(LDFLAGS) $< $(LDLIBS) -o $@ + +test: $(TESTS) + set -e; $(TESTS:%=./%;) +.Ed +. +.Pp +Note that the test binaries +aren't linked with the rest of the code, +so there is potential for simple stubbing or mocking. +. +.Pp +To get the best output +from C's simple +.Xr assert 3 , +it's best to assert the result +of a helper function +which takes the expected output +and the test input, +rather than calling +.Xr assert 3 +inside the helper function. +This way, +the message printed by the assert failure +contains a useful line number +and the expected output +rather than just variable names. +. +.Sh AUTHORS +.An Mt june@causal.agency diff --git a/www/text.causal.agency/006-some-libs.7 b/www/text.causal.agency/006-some-libs.7 new file mode 100644 index 00000000..5af65404 --- /dev/null +++ b/www/text.causal.agency/006-some-libs.7 @@ -0,0 +1,96 @@ +.Dd December 11, 2019 +.Dt SOME-LIBS 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm Some Libraries +.Nd good ones +. +.Sh DESCRIPTION +This is a little list of C libraries +I've had good experiences using. +. +.Bl -tag -width Ds +.It Fl lcurl +The library behind the +.Xr curl 1 +command. +It downloads or uploads things on the internet +through a number of protocols, +not just HTTP. +It has an easy-to-use library API, +appropriately named +.Xr libcurl-easy 3 . +I've used it to implement a +.Lk https://causal.agency/bin/title.html "page title fetcher" . +. +.It Fl lcurses +Okay so this one really isn't great. +Its interfaces can seem archaic +and its documentation is often poor. +However, it gets the job done +and is commonly available pretty much everywhere. +Interesting to note that +.Nx +uses its own implementation of curses +that is not GNU ncurses, +unlike +.Fx . +. +.It Fl ledit +This is a BSD line editing library, +similar to GNU readline. +It supports right-aligned prompts, +which I prefer for variable-length +information in shells. +. +.It Fl lkcgi +A CGI and FastCGI library +for web applications in C. +Don't worry, +it isolates HTTP parsing and input validation +from application logic +in sandboxed processes. +I think it's an excellent example +of how to design an API for C. +I used it to implement the +.Lk https://ascii.town/explore.html "torus web viewer" . +. +.It Fl lsqlite3 +An embedded relational database engine. +It's amazing what you can do with this, +and it's super easy to use! +My one gripe with it is that the library and SQL documentation +are not available as +.Xr man 1 +pages. +I'm currently working on a project using SQLite, +but it hasn't gotten very far yet. +. +.It Fl ltls +This is a new library in LibreSSL +which provides a much simpler interface for TLS sockets +compared to +.Fl lssl . +It's much more like what you'd expect +from other TLS socket wrappers, +with calls like +.Xr tls_connect 3 , +.Xr tls_read 3 +and +.Xr tls_write 3 . +I've used this for IRC clients, bouncers and bots. +. +.It Fl lz +An implementation of the DEFLATE compression algorithm +and gzip format. +It's all documented in comments in +.In zlib.h , +which isn't bad, +but for my own use I copied the docs into +.Lk https://code.causal.agency/june/zlib-man-pages "manual pages" . +I've used this for decoding and encoding PNG images. +.El +. +.Sh AUTHORS +.An June Bug Aq Mt june@causal.agency diff --git a/www/text.causal.agency/007-cgit-setup.7 b/www/text.causal.agency/007-cgit-setup.7 new file mode 100644 index 00000000..44fb436a --- /dev/null +++ b/www/text.causal.agency/007-cgit-setup.7 @@ -0,0 +1,271 @@ +.Dd December 15, 2019 +.Dt CGIT-SETUP 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm cgit setup +.Nd configuration notes +. +.Sh DESCRIPTION +I just set up cgit on +.Lk https://git.causal.agency +to replace an instance of gitea. +After 30 days of uptime, +gitea had accumulated over 11 hours of CPU time +and was using hundreds of megabytes of memory. +cgit is much more lightweight +and much more in line with my aesthetic. +I'm documenting how I set it up here +mostly to remind myself in the future. +. +.Ss slowcgi +cgit is CGI software, +but +.Xr nginx 8 +only supports FastCGI. +I used +.Xr slowcgi 8 +as a compatibility layer +by adding the following to +.Pa /etc/rc.conf : +.Bd -literal -offset indent +slowcgi_enable="YES" +slowcgi_flags="-p / -s /var/run/slowcgi.sock" +.Ed +. +.Ss nginx +I added the following in a new +.Cm server +block to +.Pa /usr/local/etc/nginx/nginx.conf : +.Bd -literal -offset indent +root /usr/local/www/cgit; +location / { + try_files $uri @cgit; +} +location @cgit { + fastcgi_pass unix:/var/run/slowcgi.sock; + fastcgi_param SCRIPT_FILENAME $document_root/cgit.cgi; + fastcgi_param SCRIPT_NAME /; + fastcgi_param PATH_INFO $uri; + fastcgi_param QUERY_STRING $query_string; + fastcgi_param REQUEST_METHOD $request_method; + fastcgi_param CONTENT_TYPE $content_type; + fastcgi_param CONTENT_LENGTH $content_length; + fastcgi_param HTTPS $https if_not_empty; + fastcgi_param SERVER_PORT $server_port; + fastcgi_param SERVER_NAME $server_name; +} +.Ed +. +.Pp +The +.Cm try_files +directive causes +.Xr nginx 8 +to first try to serve static files from +.Pa /usr/local/www/cgit +before passing anything else on to FastCGI. +. +.Pp +The +.Va SCRIPT_FILENAME +parameter tells +.Xr slowcgi 8 +the path of the CGI binary to run. +Setting +.Va SCRIPT_NAME +to +.Pa / +tells cgit its root URL +and avoids it using query strings for everything. +. +.Ss cgit +cgit doesn't provide any configuration to start from, +so you have to just read +.Xr cgitrc 5 . +I added the following to +.Pa /usr/local/etc/cgitrc : +.Bd -literal -offset indent +cache-size=1024 +clone-url=https://$HTTP_HOST/$CGIT_REPO_URL +snapshots=tar.gz zip +remove-suffix=1 +enable-git-config=1 +scan-path=/home/june/pub +.Ed +. +.Pp +The +.Cm cache-size +option enables caching, +which by default is stored in +.Pa /var/cache/cgit , +so I made sure that directory exists +and is writable by the +.Sy www +user. +The +.Cm clone-url +option sets the clone URL to advertise. +cgit will automatically serve git over HTTP. +The +.Cm snapshots +option makes tarballs available for tags and commits. +. +.Pp +The +.Cm scan-path +option causes cgit to scan the given path +for git repositories. +I'm putting mine in +.Pa ~/pub . +The +.Cm remove-suffix +option causes cgit to remove the +.Pa .git +suffix from the URLs it uses +for the repositories it finds, +so that +.Pa ~/pub/pounce.git +is served at +.Pa /pounce . +The +.Cm enable-git-config +option allows controlling some cgit options +from the +.Xr git-config 1 +of each repository. +See +.Sx git +below. +. +.Pp +I also set up a filter to render +.Xr mdoc 7 +files +and do syntax highlighting +by adding the following to +.Pa cgitrc : +.Bd -literal -offset indent +readme=:README.7 +readme=:README +about-filter=/usr/local/libexec/cgit-filter +source-filter=/usr/local/libexec/cgit-filter +.Ed +. +.Pp +The +.Cm readme +options tell cgit which files to look for +to render the +.Dq about +page. +The colon prefix causes it to look for them +in the git tree. +The +.Pa /usr/local/libexec/cgit-filter +script contains the following: +.Bd -literal -offset indent +#!/bin/sh +case "$1" in + (*.[1-9]) + /usr/bin/mandoc -T utf8 | /usr/local/libexec/ttpre + ;; + (*) + exec /usr/local/libexec/hi -t -n "$1" -f html -o anchor + ;; +esac +.Ed +. +.Pp +Filter scripts are run with the filename as their first argument +and the contents of the file on standard input. +The +.Xr ttpre 1 +command is my own utility to convert +.Xr man 1 +output to HTML. +The +.Xr hi 1 +command is my own +.Lk https://causal.agency/bin/hi.html "syntax highlighter" . +. +.Ss git +I create my repositories in +.Pa ~/pub +with +.Ql git init --bare +and use +.Pa git.causal.agency:pub/example.git +locally as the remote. +Descriptions are set by editing the +.Pa description +file in each repository. +The section and homepage can be set with +.Xr git-config 1 +through the keys +.Cm cgit.section +and +.Cm cgit.homepage , +respectively, +thanks to the +.Cm enable-git-config +option above. +. +.Ss Redirects +I added the following to the +.Cm server +block that used to serve gitea in +.Pa nginx.conf : +.Bd -literal -offset indent +location ~* /june/([^.]+)[.]git(.*) { + return 301 https://git.causal.agency/$1$2?$query_string; +} +location ~* /june/([^/]+) { + return 301 https://git.causal.agency/$1; +} +location / { + return 301 https://git.causal.agency; +} +.Ed +. +.Pp +This redirects any links to my gitea repos +to the corresponding repo in cgit. +The first +.Sy location +block also redirects gitea HTTP clone URLs to cgit +so that +.Xr git-pull 1 +continues to work on existing clones. +. +.Ss Update: fast HTTPS clones +Someone pointed out that cloning my repos +over HTTPS was incredibly slow, +and this is because cgit only implements the +.Dq dumb +HTTP git transport. +To speed up cloning, +I send the URLs used by the +.Dq smart +HTTP transport to +.Xr git-http-backend 1 +instead: +.Bd -literal -offset indent +location ~ /.+/(info/refs|git-upload-pack) { + fastcgi_pass unix:/var/run/slowcgi.sock; + fastcgi_param SCRIPT_NAME /usr/local/libexec/git-core/git-http-backend; + fastcgi_param GIT_HTTP_EXPORT_ALL 1; + fastcgi_param GIT_PROJECT_ROOT /home/june/pub; + include fastcgi_params; +} +.Ed +. +.Pp +I factored out the FastCGI parameters +I'm using with cgit +to be included here as well. +. +.Sh AUTHORS +.An June Bug Aq Mt june@causal.agency diff --git a/www/text.causal.agency/008-how-irc.7 b/www/text.causal.agency/008-how-irc.7 new file mode 100644 index 00000000..aba1bbf9 --- /dev/null +++ b/www/text.causal.agency/008-how-irc.7 @@ -0,0 +1,193 @@ +.Dd March 8, 2020 +.Dt HOW-IRC 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm How I Relay Chat +.Nd in code +. +.Sh DESCRIPTION +I've been writing a lot of IRC software lately +.Pq Sx SEE ALSO , +and developed some nice code patterns +that I've been reusing. +Here they are. +. +.Ss Parsing +I use fixed size buffers almost everywhere, +so it's necessary to know IRC's size limits. +A traditional IRC message is a maximum of 512 bytes, +but the IRCv3 message-tags spec adds +(unreasonably, in my opinion) +8191 bytes for tags. +IRC messages also have a maximum of 15 command parameters. +.Bd -literal -offset indent +enum { MessageCap = 8191 + 512 }; +enum { ParamCap = 15 }; +.Ed +. +.Pp +If I'm using tags, +I'll use X macros +to declare the set I care about. +X macros are a way of maintaining parallel arrays, +or in this case an enum and an array. +.Bd -literal -offset indent +#define ENUM_TAG \e + X("msgid", TagMsgid) \e + X("time", TagTime) + +enum Tag { +#define X(name, id) id, + ENUM_TAG +#undef X + TagCap, +}; + +static const char *TagNames[TagCap] = { +#define X(name, id) [id] = name, + ENUM_TAG +#undef X +}; +.Ed +. +.Pp +The TagNames array is used by the parsing function +to assign tag values into the message structure, +which looks like this: +.Bd -literal -offset indent +struct Message { + char *tags[TagCap]; + char *nick; + char *user; + char *host; + char *cmd; + char *params[ParamCap]; +}; +.Ed +. +.Pp +I'm a fan of using +.Xr strsep 3 +for simple parsing. +Although it modifies its input +(replacing delimiters with NUL terminators), +since the raw message is in a static buffer, +it is ideal for so-called zero-copy parsing. +I'm not going to include the whole parsing function here, +but I will at least include the part that many get wrong, +which is dealing with the colon-prefixed trailing parameter: +.Bd -literal -offset indent +msg.cmd = strsep(&line, " "); +for (int i = 0; line && i < ParamCap; ++i) { + if (line[0] == ':') { + msg.params[i] = &line[1]; + break; + } + msg.params[i] = strsep(&line, " "); +} +.Ed +. +.Ss Handling +To handle IRC commands and replies +I add handler functions to a big array. +I usually have some form of helper as well +to check the number of expected parameters. +.Bd -literal -offset indent +typedef void HandlerFn(struct Message *msg); + +static const struct Handler { + const char *cmd; + HandlerFn *fn; +} Handlers[] = { + { "001", handleReplyWelcome }, + { "PING", handlePing }, + { "PRIVMSG", handlePrivmsg }, +}; +.Ed +. +.Pp +Since I keep these arrays sorted anyway, +I started using the standard +.Xr bsearch 3 +function, +but a basic for loop probably works just as well. +I do wish I could compile-time assert +that the array really is sorted, though. +.Bd -literal -offset indent +static int compar(const void *cmd, const void *_handler) { + const struct Handler *handler = _handler; + return strcmp(cmd, handler->cmd); +} + +void handle(struct Message msg) { + if (!msg.cmd) return; + const struct Handler *handler = bsearch( + msg.cmd, + Handlers, ARRAY_LEN(Handlers), + sizeof(*handler), compar + ); + if (handler) handler->fn(&msg); +} +.Ed +. +.Ss Capabilities +For IRCv3 capabilties +I use X macros again, +this time with another handy macro +for declaring bit flag enums. +.Bd -literal -offset indent +#define BIT(x) x##Bit, x = 1 << x##Bit, x##Bit_ = x##Bit + +#define ENUM_CAP \e + X("message-tags", CapMessageTags) \e + X("sasl", CapSASL) \e + X("server-time", CapServerTime) + +enum Cap { +#define X(name, id) BIT(id), + ENUM_CAP +#undef X +}; + +static const char *CapNames[] = { +#define X(name, id) [id##Bit] = name, + ENUM_CAP +#undef X +}; +.Ed +. +.Pp +The +.Fn BIT +macro declares, for example, +.Dv CapSASL +as the bit flag and +.Dv CapSASLBit +as the corresponding index. +The +.Vt "enum Cap" +is used as a set, +for example checking if SASL is enabled with +.Ql caps & CapSASL . +. +.Pp +These patterns are serving my IRC software well, +and my IRC projects are serving me well. +It is immensely satisfying +to be (near) constantly using software +that I wrote myself and am happy with, +regardless of how niche it may be. +. +.Sh SEE ALSO +.Bl -item -compact +.It +.Lk https://git.causal.agency/pounce/about "IRC bouncer" +.It +.Lk https://git.causal.agency/litterbox/about "IRC logger" +.It +.Lk https://git.causal.agency/catgirl/about "IRC client" +.El +. +.Sh AUTHORS +.An June Bug Aq Mt june@causal.agency diff --git a/www/text.causal.agency/009-casual-update.7 b/www/text.causal.agency/009-casual-update.7 new file mode 100644 index 00000000..0548436a --- /dev/null +++ b/www/text.causal.agency/009-casual-update.7 @@ -0,0 +1,127 @@ +.Dd May 6, 2020 +.Dt CASUAL-UPDATE 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm casual update +.Nd software developments +. +.Sh DESCRIPTION +I've been figuring out more of IMAP +and Internet Messages in general +while working on a new project +so I've revisited some older ones. +I've copied my somewhat more proper +IMAP parsing code into them, +so they should be more robust. +. +.Pp +.Xr imbox 1 +is my tool to export messages +in mboxrd format directly from IMAP. +It's mostly for applying patches sent by email +without having any kind of local mail setup. +For that, +it includes the +.Xr git-fetch-email 1 +wrapper which works very similarly to +.Xr git-send-email 1 . +I learned by reading the source of +.Xr git-subtree 1 +that +.Xr git-rev-parse 1 +can be used by shell scripts +to parse long options, +so I added those. +I also added the +.Fl Fl apply +flag to automatically pipe to +.Xr git-am 1 +with the right flags for mboxrd. +. +.Pp +.Xr notemap 1 +is a tool for mirroring text files +to an IMAP Notes mailbox, +which is used by FastMail's web UI +and the macOS/iOS Notes app. +Its original parsing code +was particularly ad-hoc. +Since I've now learned +how UTF-8 headers are encoded, +I updated it to properly encode +the file name in the Subject line. +. +.Pp +I also got distracted by +a conversation about UNIX-domain sockets +where I was comparing the macOS and FreeBSD +.Xr unix 4 +pages and the Linux +.Xr unix 7 +page. +This lead me to make +.Xr exman 1 , +a tool to locally install and read +manual pages for Linux, POSIX, +.Fx , +.Nx +and +.Ox . +I've already gotten quite a bit of use out of it. +. +.Pp +In yet another IRC distraction, +I was talking about some further plans for my IRC software, +and realized it might be time to write +my future projects list down. +I opened a +.Pa .plan +file, +immediately wondered how anyone can write plain text, +then switched to a +.Pa plan.7 +file. +There's nothing I won't use +.Xr mdoc 7 +for. +After a little setup, +I can now be fingered, +and make jokes about this silly little protocol +from the days of old. +.Xr finger 1 Ap s +default output fills me with joy: +.Bd -unfilled -offset indent +No Mail. +No Plan. +.Ed +. +.Pp +And speaking of IRC and plans, +I've been meaning to tag +.Xr catgirl 1 +version 1.0 for a while now. +I've been using it as my main client +and my commits to it have really slowed down. +When I do tag it, +I'm planning on writing another post +about my whole +.Dq suite +of IRC software +and how the parts work together. +Watch this space. +. +.Sh SEE ALSO +.Bl -item -compact +.It +.Lk https://git.causal.agency/imbox "imbox" +.It +.Lk https://git.causal.agency/notemap "notemap" +.It +.Lk https://git.causal.agency/exman "exman" +.It +.Lk https://git.causal.agency/catgirl "catgirl" +.El +. +.Sh AUTHORS +.An June Bug Aq Mt june@causal.agency diff --git a/www/text.causal.agency/010-irc-suite.7 b/www/text.causal.agency/010-irc-suite.7 new file mode 100644 index 00000000..515a30ab --- /dev/null +++ b/www/text.causal.agency/010-irc-suite.7 @@ -0,0 +1,409 @@ +.Dd June 19, 2020 +.Dt IRC-SUITE 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm IRC suite +.Nd my own IRC software +. +.Sh DESCRIPTION +Over the past months +.Po +eight of them, according to +.Xr git-log 1 +.Pc +I developed a new +.Dq suite +of IRC software +that I now use full-time, +consisting of a bouncer, +a new logging and search solution, +and a terminal client. +These new programs share some characteristics: +they are all TLS-only +and use the libtls API from LibreSSL, +they can all be entirely configured from the command line +or with equivalent configuration files, +they are all designed as +a one process to one IRC connection mapping, +and they all take advantage of IRCv3 features. +. +.Pp +For context, +I was previously running +the znc IRC bouncer +and using the Textual IRC client +with its plain text logs. +I also continue to use +the Palaver IRC client for iOS. +. +.Ss Background +A bouncer is a piece of server software +that stays connected to IRC at all times +and acts as a relay +between your client and the IRC server. +When the client is disconnected, +the bouncer buffers incoming messages +to send to the client when it reconnects. +. +.Pp +Aside from this, +bouncers have another advantage: +client multiplexing. +Several clients, +for instance on different computers +or a phone, +should be able to connect to the same bouncer, +and send and receive messages under the same nick. +Unfortunately, +znc does not handle this use-case well at all. +Out of the box it offers two options: +either any client connection totally clears the buffer, +causing other clients to miss chat history; +or the buffer is never cleared, +causing every client connection +to be repeatedly spammed with redundant history. +There is also a znc wiki page +that suggests one way to solve this issue +is to connect znc to itself multiple times over. +Yikes. +. +.Ss pounce +My dissatisfaction with +connecting multiple clients to znc +directly motivated me to start working +on a new multi-client-focused IRC bouncer. +The result is +.Xr pounce 1 , +based on a rather straightforward +single-producer (the IRC server) +multiple-consumer (each IRC client) +ring buffer. +Each client has its own +independent position in the buffer +so can properly be brought up to date +whenever it connects. +. +.Pp +Additionally, +by assuming support for the IRCv3 +.Sy server-time +extension, +all IRC events can be accurately +relayed to clients at any time, +and the internals of +.Xr pounce 1 +can be kept very simple. +In fact, +it completely avoids parsing most IRC messages, +simply pushing them into the buffer +with an associated timestamp. +. +.Pp +The usernames sent by clients during registration +are used as opaque identifiers for buffer consumers. +This was chosen since most clients +can be configured to send an arbitrary username, +and those that don't often default +to the name of the client itself, +making it an appropriate identifier. +. +.Pp +Later, +I added a way for clients +to be informed of their own buffer positions +using a vendor-specific IRCv3 capability. +This means a client +can save the position +of the last message it actually received, +and request to set its position +when it reconnects, +ensuring no messages are lost +to network issues +or software crashes. +. +.Ss calico +Due to the simple design of mapping +one process to one IRC (server) connection, +it is necessary to run several instances of +.Xr pounce 1 . +Initially I simply used different ports for each, +but as I connected to more networks +and even ran some instances for friends, +it became less feasible. +. +.Pp +The solution I came up with +was to dispatch incoming connections +using Server Name Indication, or SNI. +This way, +multiple domains pointing to the same host +could be used with only one port +to connect to different instances of +.Xr pounce 1 . +For example, +I use a +.Li *.irc.causal.agency +wildcard DNS entry +and a subdomain for each IRC network, +all on port 6697. +. +.Pp +The +.Xr calico 1 +daemon included with pounce +accomplishes this dispatch +using the +.Dv MSG_PEEK +flag of +.Xr recvmsg(2) +on incoming connections. +Since SNI is immediately sent by TLS clients +as part of the ClientHello message in clear-text, +it can be processed +without doing any actual TLS. +The connection itself is then +sent to the corresponding +.Xr pounce 1 +instance +over UNIX-domain socket, +which handles TLS as normal. +This means that +.Xr calico 1 +and +.Xr pounce 1 +operate entirely independently of each other. +. +.Ss litterbox +Based on the multiple-consumer ring buffer design, +I realized it would be easy +to implement additional functionality +as independent purpose-built clients +which connect to +.Xr pounce 1 +alongside regular clients. +This could allow dedicated OTR or DCC software +to operate in parallel with a basic client, +or for more passive software +to provide notifications +or dedicated logging. +. +.Pp +For the latter, +I wanted to do better than +plain text log files. +.Xr grep 1 +over files works fine, +but search could be faster and smarter, +and the text format is +more lossy and less structured +than I'd like it to be. +Conveniently, +SQLite provides an extension +(actually two) +for full-text search. +. +.Pp +The litterbox project +is my dedicated logging solution +using SQLite FTS5. +It consists of three tools: +the +.Xr litterbox 1 +daemon itself which connects to pounce +and logs messages to SQLite, +the +.Xr scoop 1 +command line query tool, +and the +.Xr unscoop 1 +plain text import tool. +The +.Xr scoop 1 +tool constructs SQL queries +and formats the results for viewing, +with coloured nicks +and piped to a pager +by default. +. +.Pp +The +.Xr litterbox 1 +daemon +can also provide a simple +.Dq online +.Pq over IRC +search query interface +to other connected clients. +The simplest way to allow different +.Xr pounce 1 +clients to talk to each other +was to route private messages to self +internally without sending them to the IRC server. +So from any client +I can simply message myself +a full-text search query +and +.Xr litterbox 1 +responds with the results. +. +.Pp +Along with routing self-messages, +.Xr pounce 1 +also provides a vendor-specific IRCv3 capability +for passive clients such as +.Xr litterbox 1 +to indicate that they should not influence +the automatic away status, +which is normally only set +when no clients are connected. +. +.Pp +An advantage of this architecture +of dedicated clients +rather than bouncer modules +is that they need not run +on the same host. +I run my bouncers on a VPS, +but I'd rather not store my private logs there, +so +.Xr litterbox 1 +runs instead on a Raspberry Pi +in my apartment. +Also, +since it is essentially +just a regular IRC bot, +it could be used independently +for keeping public logs for a channel. +. +.Ss catgirl +There's not really that much to say +about the client, +.Xr catgirl 1 . +Of the three projects +it contains the most code +but is also the least interesting, +in my opinion. +It just does what I want a client to do, +and gets the details right. +. +.Pp +Tab complete is ordered by most recently seen or used, +and completing several nicks +inserts commas between them +as well as the colon following the final nick. +In the input line, +the prompt is updated +to reflect whether the input +will be interpreted as a command or as a message. +Messages are automatically scanned for URLs, +which can be opened or copied with commands +specifying the nick or a substring of the URL. +. +.Pp +Scrolling in a window creates a split view, +keeping the latest messages visible. +Nick colours are based instead on usernames, +keeping them more stable across renames, +and mentions in messages are coloured +to make the conversation easier to follow. +The visibility of ignored messages +can be toggled at any time. +Channels can be muted +so their activity is hidden +from the status line +unless you are pinged. +. +.Pp +.Xr catgirl 1 +is configured entirely on the command line +or in equivalent simple configuration files. +There's no dynamic manipulation of state +using complex +.Ql / +commands like in some other clients. +. +.Pp +The major caveat is that +.Xr catgirl 1 +connects to only one network at a time. +This keeps the configuration, the interface +and the code much simpler. +.Xr tmux 1 , +.Xr screen 1 +or a tabbed terminal emulator +are good options to run several instances. +. +.Pp +If you're interested in giving +.Xr catgirl 1 +a quick (and necessarily limited) try, +you can +.Li ssh chat@ascii.town . +. +.Ss Future +I think I'm done with IRC software for now. +As mentioned above, +there are a few more pieces +that could fit in to this setup, +but I don't really want or need them right now. +One thing I definitely want to try +at some point +is adding a litterbox component +to index the contents of URLs +to make finding previously shared links easier. +. +.Pp +If you try any of this software +and have feedback, +let me know in +.Li #ascii.town +on tilde.chat +or by email. +And of course, +patches are always welcome. +. +.Ss Update: scooper +Somehow I had the motivation +to create a web interface for litterbox: +.Xr scooper 1 . +It can be used either as CGI +or as a FastCGI worker, +and I used the excellent +.Xr kcgi 3 +library for it. +. +.Pp +The main advantage of this interface +is that you can click on a search result +to be brought to its context in the log viewer. +I also added an option to +.Xr litterbox 1 +to provide a corresponding scooper link +in response to its query interface. +. +.Pp +A small demo of scooper is hosted at +.Aq Lk "https://causal.agency/scooper/" . +It publicly logs the +.Li #litterbox +channel on tilde.chat. +. +.Sh SEE ALSO +.Bl -item -compact +.It +.Lk "https://git.causal.agency/pounce" pounce +.It +.Lk "https://git.causal.agency/litterbox" litterbox +.It +.Lk "https://git.causal.agency/catgirl" catgirl +.It +.Lk "https://www.sqlite.org/fts5.html" "SQLite FTS5 Extension" +.It +.Lk "https://git.causal.agency/scooper" scooper +.It +.Lk "https://kristaps.bsd.lv/kcgi/" kcgi +.El +. +.Sh AUTHORS +.An June Bug Aq Mt june@causal.agency diff --git a/www/text.causal.agency/011-libretls.7 b/www/text.causal.agency/011-libretls.7 new file mode 100644 index 00000000..c29c325e --- /dev/null +++ b/www/text.causal.agency/011-libretls.7 @@ -0,0 +1,220 @@ +.Dd August 9, 2020 +.Dt LIBRETLS 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm LibreTLS +.Nd libtls for OpenSSL +. +.Sh DESCRIPTION +This is a sort of announcement post about LibreTLS, +my port of libtls from LibreSSL to OpenSSL. +If you've wanted to try any of my software +but have been unable to because of LibreSSL, +LibreTLS is an option that will likely work for you. +I'm including instructions +for building it and my IRC software +on Debian as an example, +since manually installing libraries +is less straightforward than it could be. +. +.Pp +libtls is +.Do +a new TLS library, +designed to make it easier to write foolproof applications +.Dc . +It was developed as part of LibreSSL, +.Ox Ap s +fork of OpenSSL, +and is implemented against their version of libssl. +It provides a nice high-level API +for TLS sockets, +with functions like +.Xr tls_connect 3 , +.Xr tls_read 3 +and +.Xr tls_write 3 . +This is a vast improvement over libssl's +confusing mess of an API! +Its relative obscurity is a real shame +for C programmers. +. +.Pp +An obvious cause of its obscurity +is that it is tied to LibreSSL. +Although LibreSSL is available +for platforms other than +.Ox , +it conflicts with OpenSSL +so is difficult to install alongside it +and is often not packaged at all. +Additionally, +even if a user manually installs LibreSSL, +libtls is likely not to work on some distros +due to its hardcoded CA bundle file path. +. +.Pp +Since libtls is implemented against libssl, +which originates in OpenSSL, +it should be possible to use libtls with it. +This is what I set out to do in LibreTLS. +I started by importing the sources +from a LibreSSL-portable release, +then worked on porting the portions +that were incompatible with OpenSSL. +. +.Pp +The simpler changes just involved +replacing internal struct field accesses +with public APIs. +libtls accesses libssl internals +using a hack to get the header files +to declare private struct fields, +and for basically no reason. +The bigger changes involved +reimplementing some functions +which only exist in LibreSSL, +but these were still quite small. +I also imported the necessary compatibility functions +from LibreSSL's libcrypto +and adapated the autotools build files +to produce only a libtls +which depends on OpenSSL. +. +.Pp +Along the way +I decided to make one small behavioural change +in order for LibreTLS to be more likely +to work for everyone. +I removed the hardcoded CA file path +and changed the default configuration +to use OpenSSL's default CA paths, +which include a CA directory. +This seems to be the preferred CA source +on systems such as Debian, +where the default CA file path doesn't exist. +. +.Pp +I think the reason LibreSSL +wants to avoid using a CA directory +is so that it can fully load the CA file +once before being sandboxed. +However, +using OpenSSL's default configuration, +the CA file will still be loaded immediately +if it exists. +If it doesn't exist, +sandboxed applications +will fail when trying to +load certificates from the directory, +but unsandboxed applications +will work just fine. +Since LibreSSL's libtls +would fail either way, +I think the new behaviour +is an improvement. +. +.Pp +Another advantage of separating libtls from LibreSSL +is that it is unencumbered by OpenSSL's +awkward double-license, +both of which are incompatible with the GPL. +libtls is all new ISC-licensed code, +and future versions of OpenSSL (3.0) +will be released under the Apache 2.0 license, +which is compatible with GPLv3. +In the future, +GPL software will be able to link with +libtls and OpenSSL without additional permissions. +. +.Pp +It's also worth noting that LibreSSL +likely will not be able to import any code +from future versions of OpenSSL, +since Apache 2.0 is on +.Ox Ap s +license shitlist. +LLVM is also slowly changing their license +to Apache 2.0, +so it'll be interesting to see what +.Ox +does. +. +.Ss Installing Manually +To install LibreTLS on Debian, +for example, +fetch a release tarball from +.Lk https://causal.agency/libretls/ +and install the build dependencies: +.Bd -literal -offset indent +sudo apt-get install build-essential libssl-dev pkgconf +.Ed +. +.Pp +.Xr pkgconf 1 +isn't a dependency of LibreTLS itself, +but it's how my software +configures its build +for a dependency on libtls. +The usual build steps +will install the library: +.Bd -literal -offset indent +\&./configure +make all +sudo make install +.Ed +. +.Pp +The library will be installed in +.Pa /usr/local/lib +by default, +and you need to make sure +the dynamic linker +will be able to find it there. +On Debian, +.Pa /usr/local/lib +already appears in +.Pa /etc/ld.so.conf.d/libc.conf , +but on other systems +you'll probably need to add it to either +.Pa /etc/ld.so.conf +or a new file such as +.Pa /etc/ld.so.conf.d/local.conf . +Once the library is installed +and the path is configured, +the linker cache needs to be refreshed: +.Bd -literal -offset indent +sudo ldconfig +.Ed +. +.Pp +You'll probably also need to set +.Ev PKG_CONFIG_PATH +for the configure scripts +of my software: +.Bd -literal -offset indent +PKG_CONFIG_PATH=/usr/local/lib/pkgconfig ./configure +.Ed +. +.Pp +On +.Fx , +LibreTLS and some of my IRC software +can be installed from my own +.Lk https://git.causal.agency/ports/ "ports tree" +. +.Sh SEE ALSO +.Bl -item -compact +.It +.Lk https://git.causal.agency/libretls/about LibreTLS +.It +.Lk https://man.openbsd.org/tls_init.3 "libtls API documentation" +.El +. +.Pp +Another alternative libtls implementation, +.Lk https://sr.ht/~mcf/libtls-bearssl/ "libtls-bearssl" +. +.Sh AUTHORS +.An June Bug Aq Mt june@causal.agency diff --git a/www/text.causal.agency/012-inability.7 b/www/text.causal.agency/012-inability.7 new file mode 100644 index 00000000..d352143b --- /dev/null +++ b/www/text.causal.agency/012-inability.7 @@ -0,0 +1,39 @@ +.Dd November 26, 2020 +.Dt INABILITY 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm Inability +.Nd losing the ability to create +. +.Sh DESCRIPTION +For often weeks, sometimes months at a time, +I lose the ability to write new code. +I can still make fixes +and little cleanups +in my existing projects, +but if I try to work on something new, +nothing happens. +I can't get anything done. +. +.Pp +I think it's now been +over 3 months +since I've created anything. +I don't know what to do about it. +In the past I've eventually +regained the ability to code, +but it's unclear to me how or why. +I also don't know what +I should be doing instead. +Writing code is the only hobby +I've ever really developed, +so without it I basically +don't do anything. +. +.Pp +Does this happen to anyone else? +How do you cope? +. +.Sh AUTHORS +.Mt june@causal.agency diff --git a/www/text.causal.agency/013-hot-tips.7 b/www/text.causal.agency/013-hot-tips.7 new file mode 100644 index 00000000..63b6e353 --- /dev/null +++ b/www/text.causal.agency/013-hot-tips.7 @@ -0,0 +1,156 @@ +.Dd December 2, 2020 +.Dt HOT-TIPS 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm hot tips +.Nd from my files +. +.Sh DESCRIPTION +This is a short list of tips +from my configuration files and code +that might be useful. +. +.Ss Shell +.Bl -tag -width Ds +.It CDPATH=:~ +This is useful if you sometimes type, +for example, +.Ql cd src/bin +wanting to go to +.Pa ~/src/bin +but you aren't in +.Pa ~ . +If the path doesn't exist +in the current directory, +.Ic cd +will try it in +.Pa ~ +as well. +. +.It alias ls='LC_COLLATE=C ls' +This makes it so that +.Xr ls 1 +lists files in ASCIIbetical order, +which puts capitalized names like +.Pa README +and +.Pa Makefile +first. +. +.It git config --global commit.verbose true +Not shell but close enough. +This makes it so the entire diff is shown +below the usual summary +in the editor for a +.Xr git-commit(1) +message. +Useful for doing a quick review +of what you're committing. +.El +. +.Ss (neo)vim +.Bl -tag -width Ds +.It set inccommand=nosplit +This is the only +.Xr nvim 1 +feature I really care about +aside from the improved defaults. +This provides a live preview of what a +.Ic :s +substitution command will do. +It makes it much easier to +write complex substitutions. +. +.It nmap <leader>s vip:sort<CR> +This mapping sorts the lines of a paragraph, +or block of text separated by blank lines. +I use this a lot to sort +#include directives. +. +.It nmap <leader>S $vi{:sort<CR> +Similar to the last mapping, +this one sorts lines inside braces. +I use this to sort +switch statement cases +or array initializers. +. +.It nmap <leader>a m':0/^#include <<CR>:nohlsearch<CR>O#include < +I use this mapping to add new +#include directives, +usually followed by +.Ic <leader>s +and +.Ic '' +to sort them +and return to where I was. +. +.It nmap <leader>d :0delete<CR>:0read !date +'.Dd \e%B \e%e, \e%Y'<CR> +I use this to replace the first line of +.Xr mdoc 7 +files with the current date. +.El +. +.Ss C +.Bl -tag -width Ds +.It #define Q(...) #__VA_ARGS__ +This is what I've started using +to quote things like SQL statements +or HTML fragments in C. +Anything that happens to be valid C tokens, +which is most code, +can be quoted this way. +Macros are not expanded +inside the quoted part. +You can embed (matched) quotes +without having to escape them. +Whitespace gets collapsed, +so you can write nicely formatted multi-line SQL +that doesn't mess up your debug logging, +for example. +.Bd -literal -offset indent +const char *sql = Q( + INSERT OR IGNORE INTO names (nick, user, host) + VALUES (:nick, :user, :host); +); +.Ed +. +.It #define BIT(x) x##Bit, x = 1 << x##Bit, x##Bit_ = x##Bit +I use this macro to declare bitflag enums. +It takes advantage of +auto-incrementing enum items +so you don't need to set the values manually. +You also get constants +for both the bit index +and the flag value +for each item. +.Bd -literal -offset indent +enum Attr { + BIT(Bold), + BIT(Reverse), + BIT(Italic), + BIT(Underline), +}; +.Ed +.Pp +For example, +defines +.Sy ItalicBit = 2 +and +.Sy Italic = 1 << 2 . +Ignore the extraneous constants. +. +.It typedef int FnType(const char *str, size_t len); +You can just typedef function types! +It annoys me more than it probably should +that everyone writes ugly +function pointer typedefs. +Just stick +.Sy typedef +on the front of a function declaration +and use +.Vt FnType * . +.El +. +.Sh AUTHORS +.Mt june@causal.agency diff --git a/www/text.causal.agency/014-using-vi.7 b/www/text.causal.agency/014-using-vi.7 new file mode 100644 index 00000000..e6a6a7a0 --- /dev/null +++ b/www/text.causal.agency/014-using-vi.7 @@ -0,0 +1,135 @@ +.Dd January 11, 2021 +.Dt USING-VI 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm Using vi +.Nd simpler tools +. +.Sh DESCRIPTION +Happy new year +and hello from +.Xr vi 1 ! +I'm in the mood to post something +but not in the mood for +.Dq social +media. +This one will probably be short. +. +.Pp +Yesterday I was trying to work on sandboxing +.Xr catgirl 1 +(that's the IRC client I work on) +with +.Xr pledge 2 +and +.Xr unveil 2 +on +.Ox , +as suggested by the maintainer of its port. +I've done similar things before, +but only on server software +rather than user software. +. +.Pp +Anyway I was in +.Xr ssh 1 +to my +.Ox +VM +.Po +sadly I don't currently have any hardware to run +.Ox +on +.Pc +using my usual editor, +which is +.Xr nvim 1 . +I'm honestly not very thrilled +with what neovim is doing lately, +but the cleaned up defaults +make my configuration files happier. +. +.Pp +The real problem with +.Xr nvim 1 , +though, +is that it's laggy as hell on +.Ox . +There is significant delay +on every single keystroke, +as if I'm typing remotely to a server +on the other side of the world, +but this is on a local VM! +. +.Pp +So I did the only reasonable thing: +I typed +.Sy :qa +followed by +.Sy vi . +The difference was astonishing. +Typing and editing suddenly felt +.Em physical +again. +(I put that in italics even though I know it won't render.) +Not only was it a vast improvement over +.Xr nvim 1 +in +.Xr ssh 1 +in a VM, +it was a marked improvement over +.Xr nvim 1 +running locally and natively. +. +.Pp +Now obviously +.Xr vi 1 +doesn't have all the bells and whistles +of newer editors, +but of course the core editing model +that makes +.Xr vim 1 +and +.Xr nvim 1 +so good is there, +and in purer form, +I think. +The +.Xr vi 1 +manual page +is feasible to just sit down and read, +and learn everything there is to know about the editor. +I set up a basic configuration +and got coding. +.Bd -literal -offset indent +export EXINIT='set ai ic sm sw=4 ts=4' +.Ed +. +.Pp +After I finished my +.Xr pledge 2 +and +.Xr unveil 2 +patch, +I was so pleased with +.Xr vi 1 +that I kept on using it +yesterday and today +for other work, +and obviously to write this post. +Despite the lack of editor amenities, +its responsiveness and simplicity +are enough to make using it +.Em comfortable +and perhaps +.Em cosy . +I'm not sure I'll ever use +.Xr vi 1 +full-time, +but for now I am much less likely +to launch +.Xr nvim 1 . +. +.Sh AUTHORS +.An june Aq Mt june@causal.agency diff --git a/www/text.causal.agency/015-reusing-tags.7 b/www/text.causal.agency/015-reusing-tags.7 new file mode 100644 index 00000000..19546496 --- /dev/null +++ b/www/text.causal.agency/015-reusing-tags.7 @@ -0,0 +1,155 @@ +.Dd January 17, 2021 +.Dt REUSING-TAGS 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm reusing tags +.Nd beyond ctags +. +.Sh DESCRIPTION +I've tried to start writing this post a couple times now +and I keep getting bogged down in explanations, +so I'm just going to tell you +about some cool things I did +and hope they make sense. +. +.Pp +When I wrote my first syntax highlighter, +I decided that function definitions +should have anchor links, +because line number anchor links +are entirely useless +if you expect the file to change at all. +Since the syntax highlighter +was somewhat deliberately just a big pile of regex, +I hacked in more regex to try +to identify function and type definitions. +It wasn't elegant and it didn't always work well. +It did work though, +and I found the links very useful. +. +.Pp +Recently I was thinking about +the lexer generator +.Xr lex 1 +and decided to +rewrite the syntax highlighter +using it. +Really syntax highlighting +is no different than lexical analysis. +I ran into a problem though, +trying to preserve my anchor link function, +because really that should involve +some amount of parsing. +Trying to port my regex hacks to +.Xr lex 1 +made the lexers way more complicated +and less reliable, +so I gave up on it for a while. +. +.Pp +And then, +probably in the shower, +I realized I was approaching it +completely from the wrong direction. +There's already a tool that does what I want, +and I already use it: +.Xr ctags 1 . +All I need to do is use its output +to insert anchor links +into my syntax highlighter output. +In an afternoon I wrote +.Xr htagml 1 , +which loads tag definitions for its input file, +then scans through the input for where they match. +It can either HTML-escape +the input as it goes, +or use already formatted HTML +being piped into it from a syntax highlighter. +. +.Pp +The result is three simple tools +working together to accomplish +what a more complex tool +couldn't reliably achieve. +I'm very pleased with it, +and I've updated my site and cgit +to use the new +.Xr lex 1 Ns -based +highlighter, +.Xr ctags 1 +and +.Xr htagml 1 . +I'm currently missing a lexer for +.Xr sh 1 , +but I plan to write it eventually. +I also want to write a tool +to generate tags for +.Xr make 1 , +.Xr mdoc 7 +and perhaps +.Xr sh 1 . +The cool thing about generating more kinds of tags +is that they'll not only improve +the HTML output, +they'll also be usable in my editor. +. +.Pp +Speaking of generating different kinds of tags, +I also wrote some scripts not too long ago +for reading IETF RFCs offline. +The plain text files are available to +.Xr rsync 1 , +but they're hard to navigate on their own. +By scanning the files for headings +and generating tags, +it allows jumping to sections using +.Ic :ta +or +.Ic ^] +in +.Xr vi 1 . +For +.Xr nvim 1 +I also added an +.Ic :RFC +command to open an RFC by number +and set up +.Ic ^] +to work optimally for them. +. +.Pp +I'm still using +.Xr vi 1 +for most of my editing, +by the way. +And of course +.Xr ctags 1 +was made to work with it! +Simple old tools +are really doing it for me lately. +. +.Sh SEE ALSO +.Bl -item -compact +.It +.Lk https://causal.agency/bin/htagml.html htagml +.It +.Lk https://causal.agency/bin/hilex.html hilex +.It +.Lk https://git.causal.agency/src/tree/doc/rfc rfctags +.El +. +.Sh AUTHORS +.An june Aq Mt june@causal.agency +. +.Sh ADDENDUM +.Xr catgirl 1 , +.Xr pounce 1 , +.Xr litterbox 1 +and +.Xr scooper 1 +all have new releases, +if you're using any of them. +Also, this space is now +available over gopher, +if that's your sort of thing. diff --git a/www/text.causal.agency/016-using-openbsd.7 b/www/text.causal.agency/016-using-openbsd.7 new file mode 100644 index 00000000..b843e3c3 --- /dev/null +++ b/www/text.causal.agency/016-using-openbsd.7 @@ -0,0 +1,505 @@ +.Dd February 14, 2021 +.Dt USING-OPENBSD 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm Using OpenBSD +.Nd for real +. +.Sh DESCRIPTION +Hello from +.Ox ! +After wishing one too many times +that I had a real BSD +on a physical machine, +I finally got around to +just installing one on my +mid-2014 MacBook Pro. +I hadn't done it sooner +because I didn't realize +how easy it would be. +It helped that I already had a +.Dq Boot Camp +partition with a disused Windows 8 install +that I could replace. +. +.Pp +I roughly followed an old jcs gist +along with the +.Ox +Disk Setup guide. +I'm once again happy +that I bought a printer\(em +they're very useful for instructions +to install an operating system +on your only usable computer. +I set up encrypted softraid +and the operating system +installed smoothly. +. +.Pp +Next I had to install rEFInd, +since the default Mac boot manager +is really not keen on booting much. +Installing it requires using the +macOS recovery partition these days. +But there was a problem +with my new boot menu: +I was promised a picture of Puffy, +and instead I just got some abstract coloured circles! +Turns out a bunch of OS icons +got removed from rEFInd at some point, +and I had to rescue Puffy +from the git history. +. +.Pp +So I could happily boot +.Ox +by selecting Puffy, +but I had no networking. +I thought the wifi chip might be supported by +.Xr bwfm 4 , +but I got unlucky and it's a BCM4360, +which everything hates. +Based on the jcs gist, +I checked the list of hardware +supported by the +.Xr urtwn 4 +driver for a wifi dongle to order. +Just having a clear list +in the driver manual is wonderful. +I went with the Edimax EW-7811Un v2, +which I could get for around $20. +It's nice and tiny, +though it has a piercing blue LED +(destroy all blue LEDs) +which I had to cover with electrical tape. +. +.Pp +I had to do one other thing +before I could get it all working, though. +When I had checked the +.Xr urtwn 4 +hardware list, +I had been looking at +.Ox Ns -current , +but I had installed +.Ox 6.8 , +and support for the v2 hardware +I had bought was added after that release. +So I downloaded a snapshot +.Pa bsd.rd +along with the +.Xr urtwn 4 +firmware file +to a USB drive +and upgraded the system. +. +.Pp +Connecting to wifi with +.Xr ifconfig 8 +is a breeze, by the way, +and then you just write the same thing to a +.Xr hostname.if 5 +file to make it automatic. +I wanted to use +.Ox +for exactly this reason: +simple, consistent, cohesive, well-documented tools. +. +.Pp +Finally, I got to configuring. +The console is configured with +.Xr wsconsctl 8 , +and similarly you can put the commands in +.Xr wsconsctl.conf 5 +to have them run at boot. +I added +.Li display.brightness=50% +to tone down the brightness, +which is initially 100%, +and +.Li keyboard.backlight=0% +to turn off those annoying lights. +.Xr wsconsctl.conf 5 +is also where you can set +trackpad settings if you're not using +.Xr synaptics 4 . +I ended up using: +.Bd -literal -offset indent +mouse1.tp.tapping=1 +mouse1.tp.scaling=0.2 +mouse1.reverse_scrolling=1 +.Ed +.Pp +This enables tapping with several fingers +to simulate different mouse buttons, +makes the cursor move at a reasonable speed +and scrolling move in the right direction. +I also set up my usual modified QWERTY layout. +. +.Pp +For +.Xr X 7 +I had enabled +.Xr xenodm 1 , +which seems quite nice. +It automatically prompts you to add your +.Xr ssh 1 +keys to +.Xr ssh-agent 1 +when you log in. +One of the reasons I had not wanted +to set up another graphical system +is that I thought +I would have to make too many choices, +and that I would have to choose least bad options +rather than actually good options, +but +.Ox +already includes reasonable choices. +I wanted to use +.Xr cwm 1 , +so I started a basic +.Pa .xsession +file: +.Bd -literal -offset indent +\&. ~/.profile +export LC_CTYPE=en_US.UTF-8 +xset r rate 175 m 5/4 0 +xmodmap ~/.config/X/modmap +xrdb -load ~/.config/X/resources +exec cwm -c ~/.config/cwm/cwmrc +.Ed +. +.Pp +The +.Xr xset 1 +command sets keyboard repeat rate +and mouse acceleration. +I spent some time going through +.Xr cwm 1 Ap s +functions and writing up bindings +that would get me something close enough +to what I'm used to in macOS. +Most importantly, +putting everything on the 4 modifier (command key). +. +.Pp +I also added key bindings on F1 and F2 +to adjust the brightness with +.Xr xbacklight 1 , +and on F10, F11 and F12 +to adjust volume with +.Xr sndioctl 1 . +I'm not sure why the F keys +just send regular F1, F2, etc.\& +regardless of the Fn key. +I don't use F keys for anything else though, +so I'm not too concerned. +Once again, +.Xr sndioctl 1 +is such an easy straightforward tool: +.Bd -literal -offset indent +bind-key F10 "sndioctl output.mute=!" +bind-key F11 "sndioctl output.level=-0.05" +bind-key F12 "sndioctl output.level=+0.05" +.Ed +. +.Pp +For aesthetic configuration, +I added a new output to my +.Xr scheme 1 +colour scheme tool for +.Xr X 7 Ns -style +RGB and +.Xr xterm 1 +resources. +Normally I use the +.Em Go Mono +font, +but since +.Ox +already includes +.Em Luxi Mono , +which +.Em Go Mono +is based on, +I used that. +The most important configuration +to make anything readable on a high-DPI display is: +.Bd -literal -offset indent +Xft.dpi: 144 +Xft.antialias: true +Xft.hinting: false +.Ed +. +.Pp +I'm annoyed that I haven't found +where these resources are actually documented. +I would hope they'd be in +.Xr Xft 3 +or something, +but they're not. +Anyway, +turning off hinting +seems absolutely necessary +to prevent text from looking like garbage. +. +.Pp +It seems that to get a reasonably sized cursor +I need to install +.Sy xcursor-dmz . +I'd prefer if there wasn't this one +extra package that I needed +for a reasonable setup. +Tangentially, +I've never understood why +the black versions of dmz cursors +are called +.Dq aa +when it seems like that +would stand for antialiasing +or something. +.Bd -literal -offset indent +Xcursor.size: 64 +Xcursor.theme: dmz-aa +.Ed +. +.Pp +For a desktop background, +I found a cute bitmap (little picture) +of snowflakes already in the system +and used colours from my usual scheme: +.Bd -literal -offset indent +xsetroot -bitmap /usr/X11R6/include/X11/bitmaps/xsnow \e + -bg rgb:14/13/0E -fg rgb:7A/49/55 +.Ed +. +.Pp +Since I'd rather not install anything +I don't have to, +I went with the default +.Xr xterm 1 . +It seems more than adequate, honestly. +I read through its RESOURCES +section to configure it how I like. +The important settings are +.Sy XTerm*utf8 +and +.Sy XTerm*metaSendsEscape . +Since I'm used to copying and pasting on macOS, +I added equivalent +.Dq translations : +.Bd -literal -offset indent +XTerm*VT100*translations: #override \en\e + Super <Key>C: copy-selection(CLIPBOARD) \en\e + Super <Key>V: insert-selection(CLIPBOARD) +.Ed +. +.Pp +The next thing I needed +was a clock and battery indicator. +I actually had my battery die on me +while I was doing all this, +which reminded me. +.Xr xclock 1 +would be perfect, +but then I'd need something else +for battery. +There are a couple basic battery indicators +for X in ports, +but they're terribly ugly. +I wanted something as simple as +.Xr xclock 1 , +but that I could add some other text to. +Then I realized I could just use +.Xr xterm 1 +for that. +To my +.Pa xsession +I added: +.Bd -literal -offset indent +xterm -name clock -geometry 14x1-0+0 -sl 0 -e clock & +.Ed +.Pp +This places a little terminal +in the top-right corner of the screen +with no scrollback lines, +running a script called +.Pa clock . +To have +.Xr cwm 1 +treat it like a +.Dq panel +and show it on every desktop, +I added this to my +.Pa cwmrc : +.Bd -literal -offset indent +ignore clock +autogroup 0 clock,XTerm +.Ed +.Pp +The +.Pa clock +script simply uses +.Xr date 1 +and +.Xr apm 8 +to print the time and battery charge +every minute: +.Bd -literal -offset indent +tput civis +sleep=$(( 60 - $(date +'%S' | sed 's/^0//') )) +while :; do + if [ $(apm -a) -eq 1 ]; then + printf '%3s%%' "$(apm -l)" + else + test $(apm -b) -eq 2 && tput setaf 1 bold + printf '%3.3sm' "$(apm -m)" + tput sgr0 + fi + printf ' %s\r' "$(date +'%a %H:%M')" + sleep $sleep + sleep=60 +done +.Ed +.Pp +The initial setting of +.Va sleep +is to align the updates +with the minute ticking over. +I made the battery output +a bit fancier by showing +percentage while charging, +minutes left while discharging, +and highlighting in red +when the battery is +.Dq critical . +. +.Pp +Now is a good time to mention adding +.Ql apmd_flags=-A +to +.Pa /etc/rc.conf.local +to enable +.Dq automatic performance adjustment , +or not running your battery flat +as fast as possible mode. +It seems like I can get up to 3 hours +of battery life depending on the screen brightness, +but this is quite an old battery by now. +. +.Pp +The other thing I needed +was something to tone down +that awful, evil blue light from the screen. +I asked around and someone told me about +.Xr sct 1 , +originally written by tedu. +The package also includes a little +.Xr sctd 1 +script that you can add to your +.Pa .xsession +to have it automatically adjust +the colour temperature throughout the day. +My eyes are no longer being assaulted. +. +.Pp +While I was doing all this, +I of course needed to talk about it on IRC, +and it was very nice to be able to +install my own IRC client with: +.Bd -literal -offset indent +doas pkg_add catgirl +.Ed +.Pp +I don't plan to do +general Web Browsing on +.Ox , +and there is definitely +no good choice for browser, +so I just installed +.Xr imv 1 , +.Xr mpv 1 , +.Xr youtube-dl 1 +and +.Xr w3m 1 . +I wrote a script +to open images by piping +.Xr curl 1 +into +.Xr imv 1 , +videos with +.Xr mpv 1 , +and everything else with +.Xr w3m 1 +in a new +.Xr xterm 1 . +Annoyingly, +.Xr mpv 1 +seems incapable of exiting +without segfaulting. +That's quality. +. +.Pp +One thing I am still missing +is automatic brightness adjustment +based on ambient light +like macOS can do. +I can read the sensor with +.Xr sysctl 8 +.Cm hw.sensors.asmc0.illuminance0 , +which is measured in lux. +I tried doing something with it in a script, +but it seems tricky to map its value +to brightness adjustments +and to play nice with manual brightness changes, +so I'll just keep doing it manually for now. +. +.Pp +Update: +prx sent mail to let me know about +.Aq Lk https://github.com/jcs/xdimmer . +I should've guessed jcs had written something. +. +.Pp +And that's my current +.Ox +setup after a week of using it. +I'm quite enjoying it, +and still being pleasantly surprised +by the quality-of-life from +.Ox +tools and documentation. +For a small example, +I can jump to sections +or flag definitions in +.Xr man 1 +using +.Ic :t . +Systems without basic usability like that +should be ashamed. +. +.Pp +I would post a screenshot, +but this is +.Li text.causal.agency +;) +. +.Sh SEE ALSO +.Lk https://gist.github.com/jcs/5573685 +.Pp +My full configurations are in +.Aq Lk https://git.causal.agency/src . +. +.Sh AUTHORS +.An june Aq Mt june@causal.agency +. +.Sh BUGS +There's a red LED +inside the headphone jack +that is always on +and I have no idea how to turn off. +If anyone knows +please send me an email. diff --git a/www/text.causal.agency/017-unpasswords.7 b/www/text.causal.agency/017-unpasswords.7 new file mode 100644 index 00000000..f9643f2f --- /dev/null +++ b/www/text.causal.agency/017-unpasswords.7 @@ -0,0 +1,153 @@ +.Dd February 20, 2021 +.Dt UNPASSWORDS 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm Unpasswords +.Nd password anti-management +. +.Sh DESCRIPTION +Right away I want to say +that I'm not trying to tell anyone +how to manage their online authentication. +This is just how I do it, +and I haven't seen anyone else write about it. +. +.Pp +I don't use a password manager. +It's not a type of software +I want to deal with. +For the small handful of sites +that I use regularly +and that actually matter, +I use strong passwords +(stored in my noggin) +and TOTP. +For everything else, +I simply do not know the password, +and neither does any software. +. +.Pp +I think I started doing this one time +when I had legitimately forgotten +the password to some old account. +I clicked on +.Dq forgot my password +and opened the email, +but I didn't want to +come up with a new password +I would just forget again. +Instead I set a random one +.Po +I usually use +.Ql openssl rand -base64 33 +for this +.Pc +and immediately used that to log in +while it was still in my clipboard. +Next time I wanted to log in, +I could use +.Dq forgot my password +again. +. +.Pp +Thinking about it, +I realized that any web authentication +with an email password reset flow +is only ever as strong as +the authentication for your email account. +So what is the point of having +all these passwords set on different sites? +They all answer to your email account, +and storing them in a password manager +seems to add another potential point of failure. +May as well have no other passwords at all, +or as close as possible. +.Po +Shout out to sites like Liberapay +and asciienema +which let me not set a password at all. +.Pc +. +.Pp +So I started doing that for any site +that I don't regularly log in to. +Going through the password reset flow +can be a bit slow, +but it doesn't need to be done often. +And I can do it from anywhere +I have access to my email, +which I feel is more easily reliable +than syncing password management databases. +It's quite stress-free. +. +.Pp +After doing this manually for years, +this week I finally got around to +writing some automation for it. +A while ago I had written +.Xr imbox 1 , +a tool to directly export mail +in mboxrd format from IMAP, +along with +.Xr git-fetch-email 1 , +a wrapper which offloads configuration to +.Xr git-config 1 . +It can match emails by +Subject, From, To and Cc. +This week I added a flag +to use IMAP IDLE +to wait for a matching message +if there isn't one already, +and a flag to move matching messages +(for example to Trash) +after exporting them. +. +.Pp +With those two new flags, +I started writing some shell scripts +to automate the password reset flow +using +.Xr curl 1 +to submit forms and +.Xr git-fetch-email 1 +with +.Xr sed 1 +to pull the reset tokens +from my inbox. +At the end of the script, +the random password it set +is copied to the clipboard +and the login page for the site is opened. +So now logging in is as simple +as running a command, +waiting for the login page to open, +and pasting. +. +.Pp +The script isn't sophisticated, +but I don't think it needs to be. +I've written functions +for a couple different sites already, +and they all work in mostly the same way. +Writing a new one is just a matter +of identifying the form URLs and fields +along with where the token is in the email. +I'm not going to turn this automation +into any kind of generally usable project, +because I don't want to have to +maintain functions for tonnes of different services. +If you're interested in this idea, +I encourage you to use my script as a template +and implement the functions for services you use. +. +.Sh SEE ALSO +.Bl -item -compact +.It +.Lk https://git.causal.agency/imbox +.It +.Lk https://causal.agency/bin/sup.html +.El +. +.Sh AUTHORS +.An june Aq Mt june@causal.agency diff --git a/www/text.causal.agency/018-operating-systems.7 b/www/text.causal.agency/018-operating-systems.7 new file mode 100644 index 00000000..691102e2 --- /dev/null +++ b/www/text.causal.agency/018-operating-systems.7 @@ -0,0 +1,86 @@ +.Dd February 22, 2021 +.Dt OPERATING-SYSTEMS 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm Operating systems +.Nd criteria +. +.Sh DESCRIPTION +Sometimes in conversation +I use the term +.Dq real operating system +which people, +perhaps rightfully, +take as inflammatory. +But I have actually thought about +what I mean when I say +.Dq real operating system +and come up with +this list of criteria. +. +.Pp +An operating system should be... +.Bl -bullet +.It +Consistent and cohesive: +all parts of the system should have similar +usage, configuration, documentation and so on. +Parts of the system should naturally work together, +because they were designed to do so. +. +.It +Documented: +the system should include its own documentation. +A user should not have to +search some external wiki +to learn how the system works. +It should be obvious +where to find documentation +on a particular topic. +. +.It +Programmable: +the system should provide +a way to program the computer. +A computer which cannot be programmed +is not a computer at all. +Usually this takes the form +of a C compiler +and the tools that go with it. +In earlier times, +it might have been +a BASIC interpreter. +. +.It +Examinable and modifiable: +the full source tree +for the system should be included, +or easily obtainable +through official means. +A user should have no trouble +finding the corresponding source +for a part of the system. +Together with the previous point, +the source tree should be +compiled by the included toolchain, +allowing local modification. +.El +. +.Pp +Some things that may be parts +of real operating systems, +but are not themselves operating systems: +a kernel, +a package manager, +a collection of packages. +. +.Pp +I will leave it as an +.Dq exercise for the reader +to guess which operating systems +meet these criteria +and which don't. +. +.Sh AUTHORS +.An june Aq Mt june@causal.agency diff --git a/www/text.causal.agency/019-mailing-list.7 b/www/text.causal.agency/019-mailing-list.7 new file mode 100644 index 00000000..3c70b160 --- /dev/null +++ b/www/text.causal.agency/019-mailing-list.7 @@ -0,0 +1,287 @@ +.Dd March 4, 2021 +.Dt MAILING-LIST 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm Mailing List +.Nd a small-scale approach +. +.Sh DESCRIPTION +When I initially published +some software I expected +other people to use, +I just asked that patches +be mailed directly to me, +but I figured that +if more people were interested, +it would be better +to have a mailing list. +Unfortunately +email software, +mailing list options in particular, +are quite daunting. +I wanted a light-weight option +that would require me to host +as little software as possible. +. +.Pp +My regular email is hosted by Fastmail, +and I poked around its settings +to see what I could do. +It turns out Fastmail lets you +configure address aliases to +.Dq also send to all contacts in +a contacts group. +That's a mailing list! +I created a group called +.Dq List +and an alias called +.Mt list@causal.agency +configured to deliver to that group. +So it's really just an alias +for my regular address +that happens to also +deliver to another group of people. +. +.Pp +It's easier to just configure +and manage one mailing list, +so what I do is ask patches and feedback +to be sent to +.Mt list+catgirl@causal.agency , +for example. +Fastmail treats any +.Ar +suffix +the same as the base address, +but the full address can be used +by subscribers to filter mail by topic +if they wish. +. +.Pp +To subscribe someone to the list, +I add their contact to the group. +For a long time I was planning +to write some software +to manage these subscriptions. +It should be possible +to process subscription requests from IMAP +and manipulate the contact group with CardDAV. +When I went to start implementing this, +however, +I found CardDAV (and WebDAV in general) +completely inscrutable. +It's the kind of protocol +that is split across like 20 +different RFCs +and you can't understand anything +by just reading +the one you actually care about. +So I've given up on that +and will keep manually subscribing people +on request. +. +.Pp +The only thing missing, then, +is a way for people to read +mail sent to the list +while they aren't subscribed. +All the existing +mailing list archive software +I know of +expects to have the mail locally, +but I'd rather keep all my mail in IMAP. +First, +in order to make sure +I keep a complete archive +of the mailing list in IMAP, +I added a small amount +of Sieve code +to my Fastmail filters configuration: +.Bd -literal -offset indent +if address :matches ["To", "Cc"] "list*@causal.agency" { + fileinto :copy :flags "\e\eSeen" "INBOX.List"; +} +.Ed +. +.Pp +Sieve is a small standard language +specifically for filtering mail. +This bit of code matches +anything sent to the list +and adds a copy of it +(the original is going into my inbox) +to the +.Dq List +folder +and marks the copy as read. +. +.Pp +With a pristine IMAP mailbox +to export from, +I wrote a new archive generator. +It's called +.Xr bubger 1 +kirg (have it in a way). +My goal was to render directly from IMAP +and produce only static files as output, +making it not only easy to serve, +but also to run in one place +and copy the files elsewhere. +That's important to me +because it has access to my email, +so I'd rather run it +on my local network and +.Xr rsync 1 +its output into The Cloud. +The static files are in +HTML, Atom and mboxrd formats. +. +.Pp +The architecture of +.Xr bubger 1 +is that for each piece of mail, +identified by its UID in the mailbox, +HTML and Atom fragments +are exported along with the mboxrd. +Those fragments are then stitched together +using the IMAP SORT and THREAD extensions +to make full pages and feeds +for each thread. +The fragments act as a cache +for subsequent runs. +. +.Pp +I admit I did some +pretty questionable things +to achieve this. +Namely, +I wrote a small string templating engine in C. +I use it to produce the HTML +and XML for Atom, +as well as to generate URLs +and paths. +I'm really happy with how it works, actually. +This is also where +I really started using +one of my favourite C hacks: +.Bd -literal -offset indent +#define Q(...) #__VA_ARGS__ +.Ed +. +.Pp +I quote all my HTML/XML templates +with this and it's lovely. +. +.Pp +I've been working on +.Xr bubger 1 +on and off for almost a year now, +and it's been interesting. +I learned a lot about how email +works from having to deal with +all the ways a message can be. +Thankfully a lot of that dealing +is done by the IMAP server. +. +.Pp +As for running it, +I initially just ran it with +.Xr cron 8 , +and that's still a good way to go. +To hook it up to +.Xr rsync 1 , +pipe it like so: +.Bd -literal -offset indent +bubger -C list [...] | rsync -a --files-from=- list remote:list +.Ed +. +.Pp +Later, +I got a little annoyed +with having to wait +for the next run +if I wanted to link +to some mail I just received. +I added an option +to use IMAP IDLE +to wait for new mail continuously +and I started running it +under my process supervisor, +.Xr catsitd 8 . +. +.Pp +The setup is a little more complex +to feed the list of updated files to +.Xr rsync 1 . +I added the +.Xr catsit-watch 1 +utility to run a command +when a file changes, +and in my +.Xr catsit.conf 5 +I have the following: +.Bd -literal -offset indent +bubger ~/.local/libexec/bubger +rsync catsit-watch -i -f ~/list/UIDNEXT ~/.local/libexec/rsync +.Ed +. +.Pp +The +.Pa ~/.local/libexec/bubger +script runs +.Xr bubger 1 , +writing the list of updated paths to +.Pa ~/list/FILES , +truncating it before each update: +.Bd -literal -offset indent +exec bubger -it -C ~/list [...] >~/list/FILES +.Ed +. +.Pp +And the +.Pa ~/.local/libexec/rsync +script gets run each time a +.Xr bubger 1 +update completes +.Po +.Pa UIDNEXT +is always the last file written +.Pc +and copies the listed files +to the remote host: +.Bd -literal -offset indent +exec rsync -a --files-from=$HOME/list/FILES ~/list remote:list +.Ed +. +.Pp +I haven't tagged any +.Xr bubger 1 +releases yet +because it hasn't gotten +a huge amount of testing, +and I'm not sure anyone but me +would even want to use it. +But I'm happy +with how it's working right now, +so I might tag 1.0 soon +just for fun. +. +.Sh SEE ALSO +.Bl -item -compact +.It +.Lk https://causal.agency/list/ +.It +.Lk https://git.causal.agency/bubger/about +.It +.Lk https://git.causal.agency/catsit/about +.El +. +.Sh AUTHORS +.An june Aq Mt june@causal.agency +. +.Sh BUGS +Almost every time +I try to type +.Dq mailing list +I instead type +.Dq mailist list . diff --git a/www/text.causal.agency/020-c-style.7 b/www/text.causal.agency/020-c-style.7 new file mode 100644 index 00000000..9816dbc3 --- /dev/null +++ b/www/text.causal.agency/020-c-style.7 @@ -0,0 +1,172 @@ +.Dd March 16, 2021 +.Dt C-STYLE 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm C Style +.Nd a rough description +. +.Sh DESCRIPTION +This is a rough description +of the style in which I write C, +since it's uncommon +but some people seem to like it. +I don't have any hard rules, +it just needs to look right. +. +.Ss Superficialities +I use tabs +and they're set to 4 characters wide +in my editor. +I keep my lines shorter than 80 columns, +which I enforce by +not resizing my terminal's width. +I use block indentation only, +meaning I write long function calls +like this: +.Bd -literal -offset indent +fprintf( + imap.w, "%s UID THREAD %s UTF-8 %s\er\en", + Atoms[thread], algo, search +); +.Ed +.Pp +Anything that can be sorted +should be sorted, +with trailing commas where possible. +This and block indentation +make for simpler diffs. +.Pp +I either write single-line ifs +or always use braces. +I put parentheses +around ternary expressions. +I use camelCase +for functions and variables, +and PascalCase for types and constants. +When an acronym appears +in an identifier, +it's in either all lower case +or all upper case. +The despicable SCREAMING_SNAKE_CASE +is reserved for macros. +I don't set globals or statics to zero +since that is already the default. +I don't compare against zero or NULL +unnecessarily. +. +.Ss \&No side-effects in control flow +I never write a function call +with side-effects +inside the condition of an if statement. +I find this makes following the +.Dq happy path +through functions +much easier. +I write things like this: +.Bd -literal -offset indent +pidFile = open(pidPath, O_WRONLY | O_CREAT | O_CLOEXEC, 0600); +if (pidFile < 0) err(EX_CANTCREAT, "%s", pidPath); + +error = flock(pidFile, LOCK_EX | LOCK_NB); +if (error && errno != EWOULDBLOCK) err(EX_IOERR, "%s", pidPath); +if (error) errx(EX_CANTCREAT, "%s: file is locked", pidPath); +.Ed +.Pp +I do write side-effects +inside for and while statement heads, +since that's generally expected. +For some reason +I like to write the constant first +if I'm comparing the result of an assignment +with a side-effect. +.Bd -literal -offset indent +for (ssize_t len; 0 <= (len = getline(&buf, &cap, file)); ++line) +.Ed +. +.Ss Paragraphs +I leave blank lines +between logical chunks of +.Dq things happening . +This is usually between side-effects +with their related error handling, +or between groups of closely related side-effects. +I try to keep variable declarations +glued to the top of the bit of code +they're used in. +. +.Ss Leading break +I've mentioned this previously. +I write my switch statement breaks +before each case label. +Doing this aligns nicely, +and being in the habit +means I always avoid +accidental fallthrough. +.Bd -literal -offset indent +switch (opt) { + break; case 'a': append = 1; + break; case 'd': delay = strtol(optarg, NULL, 10); + break; case 'f': watch(kq, optarg); + break; case 'i': init = 1; + break; default: return EX_USAGE; +} +.Ed +. +.Ss Function type definitions +Function types are always typedef'd, +and it's the function type itself +that is defined, +not a function pointer type! +I put the typedef above any functions +that are supposed to be of that type +so it's clear what the pattern is. +.Bd -literal -offset indent +typedef void Action(struct Service *service); +Action *fn = NULL; +.Ed +. +.Ss Constants +I prefer enums over #defines +for integer constants, +and static const strings over #defines +unless I want to do concatenation. +.Bd -literal -offset indent +enum { Cap = 1024 }; +.Ed +.Pp +I avoid the preprocessor +wherever possible, +with the notable exception of X macros, +which I've talked about previously. +Doing things in the actual language +makes for easier debugging. +. +.Ss Organization +I usually use only one header file +in each project. +The dependency is easy to declare +and the complete rebuild +when the header changes +isn't a problem for small projects. +Unless it's a single-file program, +I name the file which contains main +something generic, +since the name of the project +isn't relevant to its function. +I name functions like +.Ar nounVerb , +and all the functions for a +.Ar noun +are defined in +.Pa noun.c . +Not really to do with C, +but I always put a FILES section +in my README pages +to briefly describe +the layout of the code +for anyone looking to +read or make changes to it. +. +.Sh AUTHORS +.An june Aq Mt june@causal.agency diff --git a/www/text.causal.agency/021-time-machine.7 b/www/text.causal.agency/021-time-machine.7 new file mode 100644 index 00000000..93d35c1e --- /dev/null +++ b/www/text.causal.agency/021-time-machine.7 @@ -0,0 +1,144 @@ +.Dd April 25, 2021 +.Dt TIME-MACHINE 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm Time Machine +.Nd an awful one +. +.Sh DESCRIPTION +If, like me, +you have a Raspberry Pi 3 at home +that you've just upgraded to +.Fx 13.0 +which has a hard drive +from an old laptop +attached to it by USB adapter +with ZFS on it +and you want to +use that as a Time Machine +backup destination +over SMB using +.Xr samba 8 , +despite +.Xr samba 8 +being awful software +and using ZFS on a system +with only 1 GB of RAM +being a terrible idea, +this is how to do it. +. +.Pp +In +.Pa /usr/local/etc/smb4.conf : +.Bd -literal -offset indent +[global] +vfs objects = zfsacl catia fruit streams_xattr +fruit:metadata = stream +fruit:model = Macmini + +[TimeMachine] +read only = no +path = /media/zhdd/backup/TimeMachine +fruit:time machine = yes +fruit:time machine max size = 250G +.Ed +. +.Pp +The important thing here is +.Sy zfsacl +in the vfs objects list. +Most pages will tell you about the others, +but without +.Sy zfsacl +Time Machine will just fail to +create the backup +and not provide any useful error. +I'm not actually sure if the +.Sy fruit:metadata +setting is required, +but a bunch of pages recommend it. +The +.Sy fruit:model +just makes it look nice in Finder. +The rest creates an SMB share called +.Dq TimeMachine +that macOS will be willing to use. +You can limit the size of the share that +.Xr samba 8 +reports so that Time Machine +doesn't fill up the whole drive. +. +.Pp +The other important thing to do +is to create some swap space. +When I first tried backing up +to this share, +it stopped after a while +because +.Xr smbd 8 +got killed +when there was nowhere to swap pages to. +A wiki page told me to +create swap on ZFS like this: +.Bd -literal -offset indent +zfs create -V 2G \e + -o org.freebsd:swap=on \e + -o checksum=off \e + -o compression=off \e + -o dedup=off \e + -o sync=disabled \e + -o primarycache=none \e + zhdd/swap +swapon /dev/zvol/zhdd/swap +.Ed +. +.Pp +To be fair to +.Xr samba 8 , +most of the memory +is being used by the ZFS ARC +.Po +which you can see in +.Xr top 1 +.Pc , +but +.Xr smbd 8 +still seems to be using +far more memory than is reasonable. +It's interesting seeing processes +with 0 RES in +.Xr htop 1 +because they're all being swapped out +while the ARC takes half the available RAM. +And having to wait for my shell +to be paged back in when I quit +.Xr htop 1 . +. +.Pp +Anyway, +as expected this whole thing +is terribly slow. +On my initial backup, +I'm currently at 26.49 GB +of 104.22 GB +with an estimate of 8 hours remaining. +Normally transfer time estimates +are wildly inaccurate, +but I think in this case it's right. +. +.Sh AUTHORS +.An june Aq Mt june@causal.agency +. +.Sh BUGS +.Fx +doesn't seem to want to mount +the ZFS volumes on the hard-drive-over-USB +automatically at boot. +I have to +.Xr zpool-import 8 +the drive manually each time. +I don't know if there's a workaround for this, +but I don't have anything essential +to the system on the drive, +and it doesn't need to reboot often. diff --git a/www/text.causal.agency/022-swans-are-dead.7 b/www/text.causal.agency/022-swans-are-dead.7 new file mode 100644 index 00000000..8664e886 --- /dev/null +++ b/www/text.causal.agency/022-swans-are-dead.7 @@ -0,0 +1,164 @@ +.Dd May 5, 2021 +.Dt SWANS-ARE-DEAD 7 +.Os "Causal Agency" +. +.Sh NAME +.Nm Swans Are Dead +.Nd album by Swans +. +.Sh DESCRIPTION +Swans Are Dead +is the best Swans album. +Among my favourites are +Soundtracks for the Blind, +To Be Kind +and Love of Life, +but Swans Are Dead +is the one I come back to +most consistently. +I'm always in the mood +to listen to these tunes. +. +.Pp +It's interesting to me +that I enjoy it so much, +I think because I had the expectation +that live albums +are not of the same quality +as studio albums, +but that's just completely untrue +in the case of Swans. +The performances are excellent +and the recording is +for the most part perfect. +The album feels live, +without any distracting deficiencies +of live recording +that would take you out +of just enjoying the music. +. +.Bl -ohang +.It Dq Feel Happiness +This track feels kind of special +since it's the only song on the album +that was never released +as part of another project. +I absolutely love this format of song. +It's like 10 minutes of build +before any lyrics happen, +which you only get after +the wave of the first part +of the song collapses. +It bookends the first disc nicely with +.Dq Blood Promise, +I think, +which is sort of the reverse. +. +.It Dq Blood On Yr Hands +This is such a great start +to the Jarboe-focused +section of the black disc. +A cappella apart from the hum +of the equipment on stage, +I love this vocal performance. +I sing this song, +terribly, +in the shower. +The lack of instrumental +seems to make it stick in my mind even more. +. +.It Dq I Crawled +This is another great vocal performance +by Jarboe. +It's so much more dynamic and intense +than the version of this song +released much earlier on Young God +with Gira's vocals. +I remember seeing a bad comment +somewhere online +from someone who couldn't stand +any Swans song Jarboe sang on. +They must have never heard +this version of +.Dq I Crawled. +Incredible. +. +.It Dq Blood Promise +My favourite track on +Swans Are Dead, +by far. +I had actually never heard of +.Dq The Whiffenpoof Song +until I looked up +the recording they use +to introduce this song +and indicate it's the last of the show. +Anyway, +this track highlights +what makes Swans live albums +so interesting. +This performance of the song +has evolved so much +from the studio recording on +The Great Annihilator. +They share the same lyrics, +but the earlier version is only 4:15, +to the live version's fifteen and a half minutes! +And it sucks me in the whole time. +As the song winds down +you can hear an audience member yell, +.Dq Don't stop! +and I agree. +. +.It Dq The Sound +One of my all-time favourite songs. +It's the one that got me to listen to +Soundtracks for the Blind, +and might've gotten me into Swans altogether. +I don't quite remember +what order I started listening to things in. +This version of it is great. +I don't think I could choose +between this and the studio recording. +There are just +two ways to enjoy it. +I love how frantic the guitars get +at the height of this track. +. +.It Dq I See Them All Lined Up +This version of the song +is way more harsh +than the version on Soundtracks. +It loses some contrast +between the verses +and the explosions of sound +punctuating them, +it just hits hard +the whole time. +. +.It Dq Yum Yab +An absolute banger. +The drums sound so good on this +and they really get me moving. +The whole thing is delightfully nasty and fun. +.El +. +.Pp +Everything else on the album +is good too, +of course, +I just don't have as much to say. +There's almost two and a half hours of music +on this thing! +. +.Sh AUTHORS +.An june Aq Mt june@causal.agency +.Pp +I want to try writing +about different kinds of things here, +and this is my first attempt +at doing so. +There's more music +I want to write about, +and maybe some other +non-computer topics. diff --git a/www/text.causal.agency/Makefile b/www/text.causal.agency/Makefile new file mode 100644 index 00000000..192bb272 --- /dev/null +++ b/www/text.causal.agency/Makefile @@ -0,0 +1,47 @@ +WEBROOT ?= /usr/local/www/text.causal.agency +LIBEXEC ?= /usr/local/libexec + +CFLAGS += -Wall -Wextra + +TXTS += 001-make.txt +TXTS += 002-writing-mdoc.txt +TXTS += 003-pleasant-c.txt +TXTS += 004-uloc.txt +TXTS += 005-testing-c.txt +TXTS += 006-some-libs.txt +TXTS += 007-cgit-setup.txt +TXTS += 008-how-irc.txt +TXTS += 009-casual-update.txt +TXTS += 010-irc-suite.txt +TXTS += 011-libretls.txt +TXTS += 012-inability.txt +TXTS += 013-hot-tips.txt +TXTS += 014-using-vi.txt +TXTS += 015-reusing-tags.txt +TXTS += 016-using-openbsd.txt +TXTS += 017-unpasswords.txt +TXTS += 018-operating-systems.txt +TXTS += 019-mailing-list.txt +TXTS += 020-c-style.txt +TXTS += 021-time-machine.txt +TXTS += 022-swans-are-dead.txt + +all: ${TXTS} + +.SUFFIXES: .7 .txt + +.7.txt: + mandoc -T utf8 $< | col -bx > $@ + +feed.atom: feed.sh ${TXTS} + sh feed.sh > feed.atom + +clean: + rm -f ${TXTS} feed.atom igp + +install: ${TXTS} feed.atom + install -p -m 644 ${TXTS} feed.atom ${WEBROOT} + +install-igp: igp + install igp ${LIBEXEC} + install -p -m 644 igp.c ${WEBROOT} diff --git a/www/text.causal.agency/feed.sh b/www/text.causal.agency/feed.sh new file mode 100644 index 00000000..f45bd326 --- /dev/null +++ b/www/text.causal.agency/feed.sh @@ -0,0 +1,55 @@ +#!/bin/sh +set -eu + +readonly Root='https://text.causal.agency' + +updated=$(date -u '+%FT%TZ') +cat <<-EOF + <?xml version="1.0" encoding="utf-8"?> + <feed xmlns="http://www.w3.org/2005/Atom"> + <title>Causal Agency</title> + <author><name>June</name><email>june@causal.agency</email></author> + <link href="${Root}"/> + <link rel="self" href="${Root}/feed.atom"/> + <id>${Root}/</id> + <updated>${updated}</updated> +EOF + +encode() { + sed ' + s/&/\&/g + s/</\</g + s/"/\"/g + ' "$@" +} + +for txt in *.txt; do + entry="${txt%.txt}.7" + date=$(grep '^[.]Dd' "$entry" | cut -c 5-) + title=$(grep '^[.]Nm' "$entry" | cut -c 5- | encode) + summary=$(grep '^[.]Nd' "$entry" | cut -c 5- | encode) + published=$(date -ju -f '%B %d, %Y %T' "${date} 00:00:00" '+%FT%TZ') + mtime=$(stat -f '%m' "$entry") + updated=$(date -ju -f '%s' "$mtime" '+%FT%TZ') + cat <<-EOF + <entry> + <title>${title}</title> + <summary>${summary}</summary> + <link href="${Root}/${txt}"/> + <id>${Root}/${txt}</id> + <published>${published}</published> + <updated>${updated}</updated> + <content type="xhtml"> + <div xmlns="http://www.w3.org/1999/xhtml"> + EOF + printf '<pre>' + encode "$txt" + cat <<-EOF + </pre> + </div> + </content> + </entry> + EOF +done + +echo '</feed>' diff --git a/www/text.causal.agency/igp.1 b/www/text.causal.agency/igp.1 new file mode 100644 index 00000000..ccfaeaa6 --- /dev/null +++ b/www/text.causal.agency/igp.1 @@ -0,0 +1,49 @@ +.Dd January 14, 2021 +.Dt IGP 1 +.Os +. +.Sh NAME +.Nm igp +.Nd insane gopher posse +. +.Sh SYNOPSIS +.Nm +.Op Fl h Ar host +.Op Fl p Ar port +.Ar directory +. +.Sh DESCRIPTION +The +.Nm +utility is a simple +Internet Gopher server +which can be started by +.Xr inetd 8 . +It serves directory listings +and files under +.Ar directory . +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl h Ar host +Set the host used in directory listings. +The default is the local host name. +.It Fl p Ar port +Set the port used in directory listeings. +The default is port 70. +.El +. +.Sh STANDARDS +.Rs +.%A B. Alberti +.%A F. Anklesaria +.%A D. Johnson +.%A P. Lindner +.%A M. McCahill +.%A D. Torrey +.%T The Internet Gopher Protocol +.%I IETF +.%R RFC 1436 +.%D March 1993 +.Re diff --git a/www/text.causal.agency/igp.c b/www/text.causal.agency/igp.c new file mode 100644 index 00000000..d7db2b28 --- /dev/null +++ b/www/text.causal.agency/igp.c @@ -0,0 +1,143 @@ +/* Copyright (C) 2021 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <dirent.h> +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/socket.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <sys/uio.h> +#include <sysexits.h> +#include <time.h> +#include <unistd.h> + +#ifdef __FreeBSD__ +#include <sys/capsicum.h> +#endif + +static int compar(const void *_a, const void *_b) { + const struct dirent *a = _a; + const struct dirent *b = _b; + if (a->d_type != b->d_type) { + return (a->d_type > b->d_type) - (a->d_type < b->d_type); + } + return strcmp(a->d_name, b->d_name); +} + +int main(int argc, char *argv[]) { + int error; + const char *host = NULL; + const char *port = "70"; + for (int opt; 0 < (opt = getopt(argc, argv, "h:p:"));) { + switch (opt) { + break; case 'h': host = optarg; + break; case 'p': port = optarg; + break; default: return EX_USAGE; + } + } + if (optind == argc) return EX_USAGE; + if (!host) { + static char buf[256]; + error = gethostname(buf, sizeof(buf)); + if (error) abort(); + host = buf; + } + + const char *path = argv[optind]; + int root = open(path, O_RDONLY | O_DIRECTORY); + if (root < 0) err(EX_NOINPUT, "/"); + +#ifdef __FreeBSD__ + cap_rights_t cap; + error = cap_enter() + || cap_rights_limit(STDIN_FILENO, cap_rights_init(&cap, CAP_READ)) + || cap_rights_limit(STDOUT_FILENO, cap_rights_init(&cap, CAP_WRITE)) + || cap_rights_limit(STDERR_FILENO, &cap) + || cap_rights_limit( + root, cap_rights_init(&cap, CAP_PREAD, CAP_FSTATAT, CAP_FSTATFS) + ); + if (error) abort(); +#else +#warning "This is completely insecure without capsicum(4)!" +#endif + + char buf[1024]; + if (!fgets(buf, sizeof(buf), stdin)) return EX_PROTOCOL; + char *ptr = buf; + char *sel = strsep(&ptr, "\t\r\n"); + if (sel[0] == '/') sel++; + + int fd = (sel[0] ? openat(root, sel, O_RDONLY) : root); + if (fd < 0) err(EX_NOINPUT, "%s", sel); + + struct stat stat; + error = fstat(fd, &stat); + if (error) err(EX_IOERR, "%s", sel); + if (!(stat.st_mode & (S_IFREG | S_IFDIR))) { + errx(EX_NOINPUT, "%s: Not a file or directory", sel); + } + + if (stat.st_mode & S_IFREG) { +#ifdef __FreeBSD__ + error = sendfile(fd, STDOUT_FILENO, 0, 0, NULL, NULL, 0); + if (!error) return EX_OK; +#endif + char buf[4096]; + for (ssize_t len; 0 < (len = read(fd, buf, sizeof(buf)));) { + fwrite(buf, len, 1, stdout); + } + return EX_OK; + } + + DIR *dir = fdopendir(fd); + if (!dir) err(EX_IOERR, "%s", sel); + + size_t len = 0; + size_t width = 0; + static struct dirent ents[4096]; + for (struct dirent *ent; len < 4096 && (ent = readdir(dir));) { + if (ent->d_name[0] == '.') continue; + if (ent->d_type != DT_REG && ent->d_type != DT_DIR) continue; + if (ent->d_namlen > width) width = ent->d_namlen; + ents[len++] = *ent; + } + + qsort(ents, len, sizeof(ents[0]), compar); + for (size_t i = 0; i < len; ++i) { + char mtime[26] = ""; + if (ents[i].d_type == DT_REG) { + error = fstatat(fd, ents[i].d_name, &stat, 0); + if (error) err(EX_IOERR, "%s/%s", sel, ents[i].d_name); + ctime_r(&stat.st_mtime, mtime); + mtime[24] = '\0'; + } + printf( + "%c%-*s %s\t%s%s%s\t%s\t%s\r\n", + (ents[i].d_type == DT_DIR ? '1' : '0'), + (int)width, ents[i].d_name, mtime, + sel, (sel[0] ? "/" : ""), ents[i].d_name, host, port + ); + } + + printf("i-- \t\t%s\t%s\r\n", host, port); + printf("0Served by IGP (AGPLv3)\tigp.c\ttext.causal.agency\t70\r\n"); + printf(".\r\n"); +} |
