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-rw-r--r--bin/.gitignore2
-rw-r--r--bin/Makefile3
-rw-r--r--bin/README.76
-rw-r--r--bin/beef.c2
-rw-r--r--bin/bit.y2
-rw-r--r--bin/c11.l2
-rw-r--r--bin/dash/.gitignore34
-rw-r--r--bin/dash/COPYING56
-rw-r--r--bin/dash/ChangeLog806
-rw-r--r--bin/dash/ChangeLog.O1023
-rw-r--r--bin/dash/Makefile.am1
-rw-r--r--bin/dash/Makefile.in773
-rw-r--r--bin/dash/aclocal.m41146
-rwxr-xr-xbin/dash/autogen.sh6
-rwxr-xr-xbin/dash/compile348
-rw-r--r--bin/dash/config.h.in269
-rwxr-xr-xbin/dash/configure6890
-rw-r--r--bin/dash/configure.ac195
-rwxr-xr-xbin/dash/depcomp791
-rwxr-xr-xbin/dash/install-sh541
-rwxr-xr-xbin/dash/missing215
-rw-r--r--bin/dash/src/.gitignore13
-rw-r--r--bin/dash/src/Makefile.am70
-rw-r--r--bin/dash/src/Makefile.in832
-rw-r--r--bin/dash/src/TOUR343
-rw-r--r--bin/dash/src/alias.c227
-rw-r--r--bin/dash/src/alias.h52
-rw-r--r--bin/dash/src/arith_yacc.c304
-rw-r--r--bin/dash/src/arith_yacc.h89
-rw-r--r--bin/dash/src/arith_yylex.c240
-rw-r--r--bin/dash/src/bltin/bltin.h89
-rw-r--r--bin/dash/src/bltin/echo.1109
-rw-r--r--bin/dash/src/bltin/printf.1354
-rw-r--r--bin/dash/src/bltin/printf.c478
-rw-r--r--bin/dash/src/bltin/test.1309
-rw-r--r--bin/dash/src/bltin/test.c700
-rw-r--r--bin/dash/src/bltin/times.c42
-rw-r--r--bin/dash/src/builtins.def.in94
-rw-r--r--bin/dash/src/cd.c332
-rw-r--r--bin/dash/src/cd.h35
-rw-r--r--bin/dash/src/dash.12361
-rw-r--r--bin/dash/src/error.c238
-rw-r--r--bin/dash/src/error.h129
-rw-r--r--bin/dash/src/eval.c1139
-rw-r--r--bin/dash/src/eval.h65
-rw-r--r--bin/dash/src/exec.c908
-rw-r--r--bin/dash/src/exec.h84
-rw-r--r--bin/dash/src/expand.c1753
-rw-r--r--bin/dash/src/expand.h83
-rw-r--r--bin/dash/src/funcs/cmv47
-rw-r--r--bin/dash/src/funcs/dirs71
-rw-r--r--bin/dash/src/funcs/kill47
-rw-r--r--bin/dash/src/funcs/login36
-rw-r--r--bin/dash/src/funcs/newgrp35
-rw-r--r--bin/dash/src/funcs/popd71
-rw-r--r--bin/dash/src/funcs/pushd71
-rw-r--r--bin/dash/src/funcs/suspend39
-rw-r--r--bin/dash/src/histedit.c504
-rw-r--r--bin/dash/src/init.h40
-rw-r--r--bin/dash/src/input.c498
-rw-r--r--bin/dash/src/input.h101
-rw-r--r--bin/dash/src/jobs.c1547
-rw-r--r--bin/dash/src/jobs.h113
-rw-r--r--bin/dash/src/machdep.h47
-rw-r--r--bin/dash/src/mail.c112
-rw-r--r--bin/dash/src/mail.h38
-rw-r--r--bin/dash/src/main.c363
-rw-r--r--bin/dash/src/main.h54
-rw-r--r--bin/dash/src/memalloc.c300
-rw-r--r--bin/dash/src/memalloc.h101
-rw-r--r--bin/dash/src/miscbltin.c506
-rw-r--r--bin/dash/src/miscbltin.h31
-rw-r--r--bin/dash/src/mkbuiltins120
-rw-r--r--bin/dash/src/mkinit.c493
-rw-r--r--bin/dash/src/mknodes.c448
-rw-r--r--bin/dash/src/mksignames.c417
-rw-r--r--bin/dash/src/mksyntax.c315
-rw-r--r--bin/dash/src/mktokens97
-rw-r--r--bin/dash/src/myhistedit.h46
-rw-r--r--bin/dash/src/mystring.c257
-rw-r--r--bin/dash/src/mystring.h63
-rw-r--r--bin/dash/src/nodes.c.pat166
-rw-r--r--bin/dash/src/nodetypes151
-rw-r--r--bin/dash/src/options.c558
-rw-r--r--bin/dash/src/options.h86
-rw-r--r--bin/dash/src/output.c429
-rw-r--r--bin/dash/src/output.h126
-rw-r--r--bin/dash/src/parser.c1677
-rw-r--r--bin/dash/src/parser.h103
-rw-r--r--bin/dash/src/redir.c483
-rw-r--r--bin/dash/src/redir.h52
-rw-r--r--bin/dash/src/shell.h104
-rw-r--r--bin/dash/src/show.c406
-rw-r--r--bin/dash/src/show.h45
-rw-r--r--bin/dash/src/system.c199
-rw-r--r--bin/dash/src/system.h118
-rw-r--r--bin/dash/src/trap.c446
-rw-r--r--bin/dash/src/trap.h57
-rw-r--r--bin/dash/src/var.c676
-rw-r--r--bin/dash/src/var.h173
-rw-r--r--bin/dehtml.l2
-rw-r--r--bin/downgrade.c2
-rw-r--r--bin/dtch.c2
-rw-r--r--bin/enc.sh70
-rw-r--r--bin/ever.c2
-rw-r--r--bin/freecell.c2
-rw-r--r--bin/git-comment.pl5
-rw-r--r--bin/glitch.c687
-rw-r--r--bin/hilex.c4
-rw-r--r--bin/hilex.h2
-rw-r--r--bin/htagml.c11
-rw-r--r--bin/make.l2
-rw-r--r--bin/man1/enc.155
-rw-r--r--bin/man1/qf.171
-rw-r--r--bin/man1/up.118
-rw-r--r--bin/man1/when.134
-rw-r--r--bin/mdoc.l2
-rw-r--r--bin/modem.c2
-rw-r--r--bin/mtags.c2
-rw-r--r--bin/nudge.c2
-rw-r--r--bin/order.y2
-rw-r--r--bin/pbd.c2
-rw-r--r--bin/png.h2
-rw-r--r--bin/pngo.c2
-rw-r--r--bin/psf2png.c2
-rw-r--r--bin/ptee.c2
-rw-r--r--bin/qf.c294
-rw-r--r--bin/quick.c2
-rw-r--r--bin/relay.c2
-rw-r--r--bin/scheme.c2
-rw-r--r--bin/sh.l14
-rw-r--r--bin/shotty.l6
-rw-r--r--bin/title.c2
-rw-r--r--bin/up.sh30
-rw-r--r--bin/when.y140
-rw-r--r--bin/xx.c2
136 files changed, 1104 insertions, 38045 deletions
diff --git a/bin/.gitignore b/bin/.gitignore
index e695e844..42269bac 100644
--- a/bin/.gitignore
+++ b/bin/.gitignore
@@ -8,6 +8,7 @@ config.mk
 dehtml
 downgrade
 dtch
+enc
 ever
 freecell
 git-comment
@@ -23,6 +24,7 @@ pbd
 pngo
 psf2png
 ptee
+qf
 quick
 relay
 scheme
diff --git a/bin/Makefile b/bin/Makefile
index 8b7de4b9..bb1535d6 100644
--- a/bin/Makefile
+++ b/bin/Makefile
@@ -13,6 +13,7 @@ BINS += bit
 BINS += c
 BINS += dehtml
 BINS += dtch
+BINS += enc
 BINS += git-comment
 BINS += glitch
 BINS += hilex
@@ -25,6 +26,7 @@ BINS += pbd
 BINS += pngo
 BINS += psf2png
 BINS += ptee
+BINS += qf
 BINS += quick
 BINS += scheme
 BINS += shotty
@@ -54,6 +56,7 @@ LDLIBS.glitch = -lz
 LDLIBS.modem = -lutil
 LDLIBS.pngo = -lz
 LDLIBS.ptee = -lutil
+LDLIBS.qf = -lcurses
 LDLIBS.relay = -ltls
 LDLIBS.scheme = -lm
 LDLIBS.title = -lcurl
diff --git a/bin/README.7 b/bin/README.7
index 6d4e4e8a..100e183e 100644
--- a/bin/README.7
+++ b/bin/README.7
@@ -1,4 +1,4 @@
-.Dd September 23, 2021
+.Dd June  2, 2022
 .Dt BIN 7
 .Os "Causal Agency"
 .
@@ -28,6 +28,8 @@ extract text from HTML
 IRC features for all
 .It Xr dtch 1
 detached sessions
+.It Xr enc 1
+encrypt and decrypt files
 .It Xr ever 1
 watch files
 .It Xr freecell 6
@@ -56,6 +58,8 @@ PNG optimizer
 PSF2 to PNG renderer
 .It Xr ptee 1
 tee for PTYs
+.It Xr qf 1
+grep pager
 .It Xr quick 1
 terrible HTTP/CGI server
 .It Xr relay 1
diff --git a/bin/beef.c b/bin/beef.c
index b2579b73..556f3088 100644
--- a/bin/beef.c
+++ b/bin/beef.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2019  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2019  June 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
diff --git a/bin/bit.y b/bin/bit.y
index ab310492..1119bce6 100644
--- a/bin/bit.y
+++ b/bin/bit.y
@@ -1,4 +1,4 @@
-/* Copyright (C) 2019  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2019  June 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
diff --git a/bin/c11.l b/bin/c11.l
index a4b8c25a..b1f0b960 100644
--- a/bin/c11.l
+++ b/bin/c11.l
@@ -1,4 +1,4 @@
-/* Copyright (C) 2020  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2020  June 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
diff --git a/bin/dash/.gitignore b/bin/dash/.gitignore
deleted file mode 100644
index 63fccdc3..00000000
--- a/bin/dash/.gitignore
+++ /dev/null
@@ -1,34 +0,0 @@
-# .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
deleted file mode 100644
index 37f8189c..00000000
--- a/bin/dash/COPYING
+++ /dev/null
@@ -1,56 +0,0 @@
-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
deleted file mode 100644
index 406e20c0..00000000
--- a/bin/dash/ChangeLog
+++ /dev/null
@@ -1,806 +0,0 @@
-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 Żenczykowski <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
deleted file mode 100644
index dfdb2cec..00000000
--- a/bin/dash/ChangeLog.O
+++ /dev/null
@@ -1,1023 +0,0 @@
-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; urgency=low
-
-  * Added the builtin test command.
-
- -- Herbert Xu <herbert@debian.org>  Sun, 20 Jul 1997 15:00:14 +1000
-
-ash (0.3.1-2) unstable; urgency=medium
-
-  * Fixed a coredump involving $*.
-
- -- Herbert Xu <herbert@debian.org>  Sat, 19 Jul 1997 12:03:02 +1000
-
-ash (0.3.1-1) unstable; urgency=medium
-
-  * NetBSD-current version as of 19970715.
-  * Fixed a "use after free" bug (#11294).
-
- -- Herbert Xu <herbert@debian.org>  Fri, 18 Jul 1997 13:48:09 +1000
-
-ash (0.3-1) unstable; urgency=low
-
-  * Initial Release.
-
- -- Herbert Xu <herbert@debian.org>  Thu, 19 Jun 1997 19:29:16 +1000
-
diff --git a/bin/dash/Makefile.am b/bin/dash/Makefile.am
deleted file mode 100644
index af437a64..00000000
--- a/bin/dash/Makefile.am
+++ /dev/null
@@ -1 +0,0 @@
-SUBDIRS = src
diff --git a/bin/dash/Makefile.in b/bin/dash/Makefile.in
deleted file mode 100644
index 163731fc..00000000
--- a/bin/dash/Makefile.in
+++ /dev/null
@@ -1,773 +0,0 @@
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-]) # _AM_PROG_TAR
-
diff --git a/bin/dash/autogen.sh b/bin/dash/autogen.sh
deleted file mode 100755
index 5e9006ca..00000000
--- a/bin/dash/autogen.sh
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/bin/sh
-
-aclocal \
-&& autoheader \
-&& automake --add-missing --copy \
-&& autoconf
diff --git a/bin/dash/compile b/bin/dash/compile
deleted file mode 100755
index 23fcba01..00000000
--- a/bin/dash/compile
+++ /dev/null
@@ -1,348 +0,0 @@
-#! /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
deleted file mode 100644
index 0eda2f6e..00000000
--- a/bin/dash/config.h.in
+++ /dev/null
@@ -1,269 +0,0 @@
-/* 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 `mempcpy' function. */
-#undef HAVE_MEMPCPY
-
-/* Define to 1 if you have the <minix/config.h> header file. */
-#undef HAVE_MINIX_CONFIG_H
-
-/* 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 <stdio.h> header file. */
-#undef HAVE_STDIO_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 <wchar.h> header file. */
-#undef HAVE_WCHAR_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 all of the C90 standard headers exist (not just the ones
-   required in a freestanding environment). This macro is provided for
-   backward compatibility; new code need not use it. */
-#undef STDC_HEADERS
-
-/* Enable extensions on AIX 3, Interix.  */
-#ifndef _ALL_SOURCE
-# undef _ALL_SOURCE
-#endif
-/* Enable general extensions on macOS.  */
-#ifndef _DARWIN_C_SOURCE
-# undef _DARWIN_C_SOURCE
-#endif
-/* Enable general extensions on Solaris.  */
-#ifndef __EXTENSIONS__
-# undef __EXTENSIONS__
-#endif
-/* Enable GNU extensions on systems that have them.  */
-#ifndef _GNU_SOURCE
-# undef _GNU_SOURCE
-#endif
-/* Enable X/Open compliant socket functions that do not require linking
-   with -lxnet on HP-UX 11.11.  */
-#ifndef _HPUX_ALT_XOPEN_SOCKET_API
-# undef _HPUX_ALT_XOPEN_SOCKET_API
-#endif
-/* Identify the host operating system as Minix.
-   This macro does not affect the system headers' behavior.
-   A future release of Autoconf may stop defining this macro.  */
-#ifndef _MINIX
-# undef _MINIX
-#endif
-/* Enable general extensions on NetBSD.
-   Enable NetBSD compatibility extensions on Minix.  */
-#ifndef _NETBSD_SOURCE
-# undef _NETBSD_SOURCE
-#endif
-/* Enable OpenBSD compatibility extensions on NetBSD.
-   Oddly enough, this does nothing on OpenBSD.  */
-#ifndef _OPENBSD_SOURCE
-# undef _OPENBSD_SOURCE
-#endif
-/* Define to 1 if needed for POSIX-compatible behavior.  */
-#ifndef _POSIX_SOURCE
-# undef _POSIX_SOURCE
-#endif
-/* Define to 2 if needed for POSIX-compatible behavior.  */
-#ifndef _POSIX_1_SOURCE
-# undef _POSIX_1_SOURCE
-#endif
-/* Enable POSIX-compatible threading on Solaris.  */
-#ifndef _POSIX_PTHREAD_SEMANTICS
-# undef _POSIX_PTHREAD_SEMANTICS
-#endif
-/* Enable extensions specified by ISO/IEC TS 18661-5:2014.  */
-#ifndef __STDC_WANT_IEC_60559_ATTRIBS_EXT__
-# undef __STDC_WANT_IEC_60559_ATTRIBS_EXT__
-#endif
-/* Enable extensions specified by ISO/IEC TS 18661-1:2014.  */
-#ifndef __STDC_WANT_IEC_60559_BFP_EXT__
-# undef __STDC_WANT_IEC_60559_BFP_EXT__
-#endif
-/* Enable extensions specified by ISO/IEC TS 18661-2:2015.  */
-#ifndef __STDC_WANT_IEC_60559_DFP_EXT__
-# undef __STDC_WANT_IEC_60559_DFP_EXT__
-#endif
-/* Enable extensions specified by ISO/IEC TS 18661-4:2015.  */
-#ifndef __STDC_WANT_IEC_60559_FUNCS_EXT__
-# undef __STDC_WANT_IEC_60559_FUNCS_EXT__
-#endif
-/* Enable extensions specified by ISO/IEC TS 18661-3:2015.  */
-#ifndef __STDC_WANT_IEC_60559_TYPES_EXT__
-# undef __STDC_WANT_IEC_60559_TYPES_EXT__
-#endif
-/* Enable extensions specified by ISO/IEC TR 24731-2:2010.  */
-#ifndef __STDC_WANT_LIB_EXT2__
-# undef __STDC_WANT_LIB_EXT2__
-#endif
-/* Enable extensions specified by ISO/IEC 24747:2009.  */
-#ifndef __STDC_WANT_MATH_SPEC_FUNCS__
-# undef __STDC_WANT_MATH_SPEC_FUNCS__
-#endif
-/* Enable extensions on HP NonStop.  */
-#ifndef _TANDEM_SOURCE
-# undef _TANDEM_SOURCE
-#endif
-/* Enable X/Open extensions.  Define to 500 only if necessary
-   to make mbstate_t available.  */
-#ifndef _XOPEN_SOURCE
-# undef _XOPEN_SOURCE
-#endif
-
-
-/* Version number of package */
-#undef VERSION
-
-/* Define if you build with -DWITH_LINENO */
-#undef WITH_LINENO
-
-/* 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
-
-/* 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
deleted file mode 100755
index 0f8e6e5d..00000000
--- a/bin/dash/configure
+++ /dev/null
@@ -1,6890 +0,0 @@
-#! /bin/sh
-# Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.71 for dash 0.5.11.4.
-#
-#
-# Copyright (C) 1992-1996, 1998-2017, 2020-2021 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
-as_nop=:
-if test ${ZSH_VERSION+y} && (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 $as_nop
-  case `(set -o) 2>/dev/null` in #(
-  *posix*) :
-    set -o posix ;; #(
-  *) :
-     ;;
-esac
-fi
-
-
-
-# Reset variables that may have inherited troublesome values from
-# the environment.
-
-# IFS needs to be set, to space, tab, and newline, in precisely that order.
-# (If _AS_PATH_WALK were called with IFS unset, it would have the
-# side effect of setting IFS to empty, thus disabling word splitting.)
-# Quoting is to prevent editors from complaining about space-tab.
-as_nl='
-'
-export as_nl
-IFS=" ""	$as_nl"
-
-PS1='$ '
-PS2='> '
-PS4='+ '
-
-# Ensure predictable behavior from utilities with locale-dependent output.
-LC_ALL=C
-export LC_ALL
-LANGUAGE=C
-export LANGUAGE
-
-# We cannot yet rely on "unset" to work, but we need these variables
-# to be unset--not just set to an empty or harmless value--now, to
-# avoid bugs in old shells (e.g. pre-3.0 UWIN ksh).  This construct
-# also avoids known problems related to "unset" and subshell syntax
-# in other old shells (e.g. bash 2.01 and pdksh 5.2.14).
-for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH
-do eval test \${$as_var+y} \
-  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
-done
-
-# Ensure that fds 0, 1, and 2 are open.
-if (exec 3>&0) 2>/dev/null; then :; else exec 0</dev/null; fi
-if (exec 3>&1) 2>/dev/null; then :; else exec 1>/dev/null; fi
-if (exec 3>&2)            ; then :; else exec 2>/dev/null; fi
-
-# The user is always right.
-if ${PATH_SEPARATOR+false} :; then
-  PATH_SEPARATOR=:
-  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
-    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
-      PATH_SEPARATOR=';'
-  }
-fi
-
-
-# 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
-  case $as_dir in #(((
-    '') as_dir=./ ;;
-    */) ;;
-    *) as_dir=$as_dir/ ;;
-  esac
-    test -r "$as_dir$0" && as_myself=$as_dir$0 && break
-  done
-IFS=$as_save_IFS
-
-     ;;
-esac
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-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
-printf %s "checking for $2... " >&6; }
-if eval test \${$3+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
-   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
-#define $2 innocuous_$2
-
-/* System header to define __stub macros and hopefully few prototypes,
-   which can conflict with char $2 (); below.  */
-
-#include <limits.h>
-#undef $2
-
-/* 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 $2 ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined __stub_$2 || defined __stub___$2
-choke me
-#endif
-
-int
-main (void)
-{
-return $2 ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"
-then :
-  eval "$3=yes"
-else $as_nop
-  eval "$3=no"
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam \
-    conftest$ac_exeext conftest.$ac_ext
-fi
-eval ac_res=\$$3
-	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-printf "%s\n" "$ac_res" >&6; }
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-
-} # ac_fn_c_check_func
-ac_configure_args_raw=
-for ac_arg
-do
-  case $ac_arg in
-  *\'*)
-    ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
-  esac
-  as_fn_append ac_configure_args_raw " '$ac_arg'"
-done
-
-case $ac_configure_args_raw in
-  *$as_nl*)
-    ac_safe_unquote= ;;
-  *)
-    ac_unsafe_z='|&;<>()$`\\"*?[ ''	' # This string ends in space, tab.
-    ac_unsafe_a="$ac_unsafe_z#~"
-    ac_safe_unquote="s/ '\\([^$ac_unsafe_a][^$ac_unsafe_z]*\\)'/ \\1/g"
-    ac_configure_args_raw=`      printf "%s\n" "$ac_configure_args_raw" | sed "$ac_safe_unquote"`;;
-esac
-
-cat >config.log <<_ACEOF
-This file contains any messages produced by compilers while
-running configure, to aid debugging if configure makes a mistake.
-
-It was created by dash $as_me 0.5.11.4, which was
-generated by GNU Autoconf 2.71.  Invocation command line was
-
-  $ $0$ac_configure_args_raw
-
-_ACEOF
-exec 5>>config.log
-{
-cat <<_ASUNAME
-## --------- ##
-## Platform. ##
-## --------- ##
-
-hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
-uname -m = `(uname -m) 2>/dev/null || echo unknown`
-uname -r = `(uname -r) 2>/dev/null || echo unknown`
-uname -s = `(uname -s) 2>/dev/null || echo unknown`
-uname -v = `(uname -v) 2>/dev/null || echo unknown`
-
-/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
-/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
-
-/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
-/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
-/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
-/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
-/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
-/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
-/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
-
-_ASUNAME
-
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  case $as_dir in #(((
-    '') as_dir=./ ;;
-    */) ;;
-    *) as_dir=$as_dir/ ;;
-  esac
-    printf "%s\n" "PATH: $as_dir"
-  done
-IFS=$as_save_IFS
-
-} >&5
-
-cat >&5 <<_ACEOF
-
-
-## ----------- ##
-## Core tests. ##
-## ----------- ##
-
-_ACEOF
-
-
-# Keep a trace of the command line.
-# Strip out --no-create and --no-recursion so they do not pile up.
-# Strip out --silent because we don't want to record it for future runs.
-# Also quote any args containing shell meta-characters.
-# Make two passes to allow for proper duplicate-argument suppression.
-ac_configure_args=
-ac_configure_args0=
-ac_configure_args1=
-ac_must_keep_next=false
-for ac_pass in 1 2
-do
-  for ac_arg
-  do
-    case $ac_arg in
-    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
-    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
-    | -silent | --silent | --silen | --sile | --sil)
-      continue ;;
-    *\'*)
-      ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
-    esac
-    case $ac_pass in
-    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
-    2)
-      as_fn_append ac_configure_args1 " '$ac_arg'"
-      if test $ac_must_keep_next = true; then
-	ac_must_keep_next=false # Got value, back to normal.
-      else
-	case $ac_arg in
-	  *=* | --config-cache | -C | -disable-* | --disable-* \
-	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
-	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
-	  | -with-* | --with-* | -without-* | --without-* | --x)
-	    case "$ac_configure_args0 " in
-	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
-	    esac
-	    ;;
-	  -* ) ac_must_keep_next=true ;;
-	esac
-      fi
-      as_fn_append ac_configure_args " '$ac_arg'"
-      ;;
-    esac
-  done
-done
-{ ac_configure_args0=; unset ac_configure_args0;}
-{ ac_configure_args1=; unset ac_configure_args1;}
-
-# When interrupted or exit'd, cleanup temporary files, and complete
-# config.log.  We remove comments because anyway the quotes in there
-# would cause problems or look ugly.
-# WARNING: Use '\'' to represent an apostrophe within the trap.
-# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
-trap 'exit_status=$?
-  # Sanitize IFS.
-  IFS=" ""	$as_nl"
-  # Save into config.log some information that might help in debugging.
-  {
-    echo
-
-    printf "%s\n" "## ---------------- ##
-## Cache variables. ##
-## ---------------- ##"
-    echo
-    # The following way of writing the cache mishandles newlines in values,
-(
-  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 $ac_var in #(
-      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
-printf "%s\n" "$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=\ *)
-      sed -n \
-	"s/'\''/'\''\\\\'\'''\''/g;
-	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
-      ;; #(
-    *)
-      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
-      ;;
-    esac |
-    sort
-)
-    echo
-
-    printf "%s\n" "## ----------------- ##
-## Output variables. ##
-## ----------------- ##"
-    echo
-    for ac_var in $ac_subst_vars
-    do
-      eval ac_val=\$$ac_var
-      case $ac_val in
-      *\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
-      esac
-      printf "%s\n" "$ac_var='\''$ac_val'\''"
-    done | sort
-    echo
-
-    if test -n "$ac_subst_files"; then
-      printf "%s\n" "## ------------------- ##
-## File substitutions. ##
-## ------------------- ##"
-      echo
-      for ac_var in $ac_subst_files
-      do
-	eval ac_val=\$$ac_var
-	case $ac_val in
-	*\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
-	esac
-	printf "%s\n" "$ac_var='\''$ac_val'\''"
-      done | sort
-      echo
-    fi
-
-    if test -s confdefs.h; then
-      printf "%s\n" "## ----------- ##
-## confdefs.h. ##
-## ----------- ##"
-      echo
-      cat confdefs.h
-      echo
-    fi
-    test "$ac_signal" != 0 &&
-      printf "%s\n" "$as_me: caught signal $ac_signal"
-    printf "%s\n" "$as_me: exit $exit_status"
-  } >&5
-  rm -f core *.core core.conftest.* &&
-    rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
-    exit $exit_status
-' 0
-for ac_signal in 1 2 13 15; do
-  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
-done
-ac_signal=0
-
-# confdefs.h avoids OS command line length limits that DEFS can exceed.
-rm -f -r conftest* confdefs.h
-
-printf "%s\n" "/* confdefs.h */" > confdefs.h
-
-# Predefined preprocessor variables.
-
-printf "%s\n" "#define PACKAGE_NAME \"$PACKAGE_NAME\"" >>confdefs.h
-
-printf "%s\n" "#define PACKAGE_TARNAME \"$PACKAGE_TARNAME\"" >>confdefs.h
-
-printf "%s\n" "#define PACKAGE_VERSION \"$PACKAGE_VERSION\"" >>confdefs.h
-
-printf "%s\n" "#define PACKAGE_STRING \"$PACKAGE_STRING\"" >>confdefs.h
-
-printf "%s\n" "#define PACKAGE_BUGREPORT \"$PACKAGE_BUGREPORT\"" >>confdefs.h
-
-printf "%s\n" "#define PACKAGE_URL \"$PACKAGE_URL\"" >>confdefs.h
-
-
-# Let the site file select an alternate cache file if it wants to.
-# Prefer an explicitly selected file to automatically selected ones.
-if test -n "$CONFIG_SITE"; then
-  ac_site_files="$CONFIG_SITE"
-elif test "x$prefix" != xNONE; then
-  ac_site_files="$prefix/share/config.site $prefix/etc/config.site"
-else
-  ac_site_files="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
-fi
-
-for ac_site_file in $ac_site_files
-do
-  case $ac_site_file in #(
-  */*) :
-     ;; #(
-  *) :
-    ac_site_file=./$ac_site_file ;;
-esac
-  if test -f "$ac_site_file" && test -r "$ac_site_file"; then
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
-printf "%s\n" "$as_me: loading site script $ac_site_file" >&6;}
-    sed 's/^/| /' "$ac_site_file" >&5
-    . "$ac_site_file" \
-      || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "failed to load site script $ac_site_file
-See \`config.log' for more details" "$LINENO" 5; }
-  fi
-done
-
-if test -r "$cache_file"; then
-  # Some versions of bash will fail to source /dev/null (special files
-  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
-  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
-printf "%s\n" "$as_me: loading cache $cache_file" >&6;}
-    case $cache_file in
-      [\\/]* | ?:[\\/]* ) . "$cache_file";;
-      *)                      . "./$cache_file";;
-    esac
-  fi
-else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
-printf "%s\n" "$as_me: creating cache $cache_file" >&6;}
-  >$cache_file
-fi
-
-# Test code for whether the C compiler supports C89 (global declarations)
-ac_c_conftest_c89_globals='
-/* Does the compiler advertise C89 conformance?
-   Do not test the value of __STDC__, because some compilers set it to 0
-   while being otherwise adequately conformant. */
-#if !defined __STDC__
-# error "Compiler does not advertise C89 conformance"
-#endif
-
-#include <stddef.h>
-#include <stdarg.h>
-struct stat;
-/* Most of the following tests are stolen from RCS 5.7 src/conf.sh.  */
-struct buf { int x; };
-struct buf * (*rcsopen) (struct buf *, struct stat *, int);
-static char *e (p, i)
-     char **p;
-     int i;
-{
-  return p[i];
-}
-static char *f (char * (*g) (char **, int), char **p, ...)
-{
-  char *s;
-  va_list v;
-  va_start (v,p);
-  s = g (p, va_arg (v,int));
-  va_end (v);
-  return s;
-}
-
-/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
-   function prototypes and stuff, but not \xHH hex character constants.
-   These do not provoke an error unfortunately, instead are silently treated
-   as an "x".  The following induces an error, until -std is added to get
-   proper ANSI mode.  Curiously \x00 != x always comes out true, for an
-   array size at least.  It is necessary to write \x00 == 0 to get something
-   that is true only with -std.  */
-int osf4_cc_array ['\''\x00'\'' == 0 ? 1 : -1];
-
-/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
-   inside strings and character constants.  */
-#define FOO(x) '\''x'\''
-int xlc6_cc_array[FOO(a) == '\''x'\'' ? 1 : -1];
-
-int test (int i, double x);
-struct s1 {int (*f) (int a);};
-struct s2 {int (*f) (double a);};
-int pairnames (int, char **, int *(*)(struct buf *, struct stat *, int),
-               int, int);'
-
-# Test code for whether the C compiler supports C89 (body of main).
-ac_c_conftest_c89_main='
-ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]);
-'
-
-# Test code for whether the C compiler supports C99 (global declarations)
-ac_c_conftest_c99_globals='
-// Does the compiler advertise C99 conformance?
-#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
-# error "Compiler does not advertise C99 conformance"
-#endif
-
-#include <stdbool.h>
-extern int puts (const char *);
-extern int printf (const char *, ...);
-extern int dprintf (int, const char *, ...);
-extern void *malloc (size_t);
-
-// Check varargs macros.  These examples are taken from C99 6.10.3.5.
-// dprintf is used instead of fprintf to avoid needing to declare
-// FILE and stderr.
-#define debug(...) dprintf (2, __VA_ARGS__)
-#define showlist(...) puts (#__VA_ARGS__)
-#define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
-static void
-test_varargs_macros (void)
-{
-  int x = 1234;
-  int y = 5678;
-  debug ("Flag");
-  debug ("X = %d\n", x);
-  showlist (The first, second, and third items.);
-  report (x>y, "x is %d but y is %d", x, y);
-}
-
-// Check long long types.
-#define BIG64 18446744073709551615ull
-#define BIG32 4294967295ul
-#define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)
-#if !BIG_OK
-  #error "your preprocessor is broken"
-#endif
-#if BIG_OK
-#else
-  #error "your preprocessor is broken"
-#endif
-static long long int bignum = -9223372036854775807LL;
-static unsigned long long int ubignum = BIG64;
-
-struct incomplete_array
-{
-  int datasize;
-  double data[];
-};
-
-struct named_init {
-  int number;
-  const wchar_t *name;
-  double average;
-};
-
-typedef const char *ccp;
-
-static inline int
-test_restrict (ccp restrict text)
-{
-  // See if C++-style comments work.
-  // Iterate through items via the restricted pointer.
-  // Also check for declarations in for loops.
-  for (unsigned int i = 0; *(text+i) != '\''\0'\''; ++i)
-    continue;
-  return 0;
-}
-
-// Check varargs and va_copy.
-static bool
-test_varargs (const char *format, ...)
-{
-  va_list args;
-  va_start (args, format);
-  va_list args_copy;
-  va_copy (args_copy, args);
-
-  const char *str = "";
-  int number = 0;
-  float fnumber = 0;
-
-  while (*format)
-    {
-      switch (*format++)
-	{
-	case '\''s'\'': // string
-	  str = va_arg (args_copy, const char *);
-	  break;
-	case '\''d'\'': // int
-	  number = va_arg (args_copy, int);
-	  break;
-	case '\''f'\'': // float
-	  fnumber = va_arg (args_copy, double);
-	  break;
-	default:
-	  break;
-	}
-    }
-  va_end (args_copy);
-  va_end (args);
-
-  return *str && number && fnumber;
-}
-'
-
-# Test code for whether the C compiler supports C99 (body of main).
-ac_c_conftest_c99_main='
-  // Check bool.
-  _Bool success = false;
-  success |= (argc != 0);
-
-  // Check restrict.
-  if (test_restrict ("String literal") == 0)
-    success = true;
-  char *restrict newvar = "Another string";
-
-  // Check varargs.
-  success &= test_varargs ("s, d'\'' f .", "string", 65, 34.234);
-  test_varargs_macros ();
-
-  // Check flexible array members.
-  struct incomplete_array *ia =
-    malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
-  ia->datasize = 10;
-  for (int i = 0; i < ia->datasize; ++i)
-    ia->data[i] = i * 1.234;
-
-  // Check named initializers.
-  struct named_init ni = {
-    .number = 34,
-    .name = L"Test wide string",
-    .average = 543.34343,
-  };
-
-  ni.number = 58;
-
-  int dynamic_array[ni.number];
-  dynamic_array[0] = argv[0][0];
-  dynamic_array[ni.number - 1] = 543;
-
-  // work around unused variable warnings
-  ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == '\''x'\''
-	 || dynamic_array[ni.number - 1] != 543);
-'
-
-# Test code for whether the C compiler supports C11 (global declarations)
-ac_c_conftest_c11_globals='
-// Does the compiler advertise C11 conformance?
-#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
-# error "Compiler does not advertise C11 conformance"
-#endif
-
-// Check _Alignas.
-char _Alignas (double) aligned_as_double;
-char _Alignas (0) no_special_alignment;
-extern char aligned_as_int;
-char _Alignas (0) _Alignas (int) aligned_as_int;
-
-// Check _Alignof.
-enum
-{
-  int_alignment = _Alignof (int),
-  int_array_alignment = _Alignof (int[100]),
-  char_alignment = _Alignof (char)
-};
-_Static_assert (0 < -_Alignof (int), "_Alignof is signed");
-
-// Check _Noreturn.
-int _Noreturn does_not_return (void) { for (;;) continue; }
-
-// Check _Static_assert.
-struct test_static_assert
-{
-  int x;
-  _Static_assert (sizeof (int) <= sizeof (long int),
-                  "_Static_assert does not work in struct");
-  long int y;
-};
-
-// Check UTF-8 literals.
-#define u8 syntax error!
-char const utf8_literal[] = u8"happens to be ASCII" "another string";
-
-// Check duplicate typedefs.
-typedef long *long_ptr;
-typedef long int *long_ptr;
-typedef long_ptr long_ptr;
-
-// Anonymous structures and unions -- taken from C11 6.7.2.1 Example 1.
-struct anonymous
-{
-  union {
-    struct { int i; int j; };
-    struct { int k; long int l; } w;
-  };
-  int m;
-} v1;
-'
-
-# Test code for whether the C compiler supports C11 (body of main).
-ac_c_conftest_c11_main='
-  _Static_assert ((offsetof (struct anonymous, i)
-		   == offsetof (struct anonymous, w.k)),
-		  "Anonymous union alignment botch");
-  v1.i = 2;
-  v1.w.k = 5;
-  ok |= v1.i != 5;
-'
-
-# Test code for whether the C compiler supports C11 (complete).
-ac_c_conftest_c11_program="${ac_c_conftest_c89_globals}
-${ac_c_conftest_c99_globals}
-${ac_c_conftest_c11_globals}
-
-int
-main (int argc, char **argv)
-{
-  int ok = 0;
-  ${ac_c_conftest_c89_main}
-  ${ac_c_conftest_c99_main}
-  ${ac_c_conftest_c11_main}
-  return ok;
-}
-"
-
-# Test code for whether the C compiler supports C99 (complete).
-ac_c_conftest_c99_program="${ac_c_conftest_c89_globals}
-${ac_c_conftest_c99_globals}
-
-int
-main (int argc, char **argv)
-{
-  int ok = 0;
-  ${ac_c_conftest_c89_main}
-  ${ac_c_conftest_c99_main}
-  return ok;
-}
-"
-
-# Test code for whether the C compiler supports C89 (complete).
-ac_c_conftest_c89_program="${ac_c_conftest_c89_globals}
-
-int
-main (int argc, char **argv)
-{
-  int ok = 0;
-  ${ac_c_conftest_c89_main}
-  return ok;
-}
-"
-
-as_fn_append ac_header_c_list " stdio.h stdio_h HAVE_STDIO_H"
-as_fn_append ac_header_c_list " stdlib.h stdlib_h HAVE_STDLIB_H"
-as_fn_append ac_header_c_list " string.h string_h HAVE_STRING_H"
-as_fn_append ac_header_c_list " inttypes.h inttypes_h HAVE_INTTYPES_H"
-as_fn_append ac_header_c_list " stdint.h stdint_h HAVE_STDINT_H"
-as_fn_append ac_header_c_list " strings.h strings_h HAVE_STRINGS_H"
-as_fn_append ac_header_c_list " sys/stat.h sys_stat_h HAVE_SYS_STAT_H"
-as_fn_append ac_header_c_list " sys/types.h sys_types_h HAVE_SYS_TYPES_H"
-as_fn_append ac_header_c_list " unistd.h unistd_h HAVE_UNISTD_H"
-as_fn_append ac_header_c_list " wchar.h wchar_h HAVE_WCHAR_H"
-as_fn_append ac_header_c_list " minix/config.h minix_config_h HAVE_MINIX_CONFIG_H"
-
-# Auxiliary files required by this configure script.
-ac_aux_files="compile missing install-sh"
-
-# Locations in which to look for auxiliary files.
-ac_aux_dir_candidates="${srcdir}${PATH_SEPARATOR}${srcdir}/..${PATH_SEPARATOR}${srcdir}/../.."
-
-# Search for a directory containing all of the required auxiliary files,
-# $ac_aux_files, from the $PATH-style list $ac_aux_dir_candidates.
-# If we don't find one directory that contains all the files we need,
-# we report the set of missing files from the *first* directory in
-# $ac_aux_dir_candidates and give up.
-ac_missing_aux_files=""
-ac_first_candidate=:
-printf "%s\n" "$as_me:${as_lineno-$LINENO}: looking for aux files: $ac_aux_files" >&5
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-as_found=false
-for as_dir in $ac_aux_dir_candidates
-do
-  IFS=$as_save_IFS
-  case $as_dir in #(((
-    '') as_dir=./ ;;
-    */) ;;
-    *) as_dir=$as_dir/ ;;
-  esac
-  as_found=:
-
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}:  trying $as_dir" >&5
-  ac_aux_dir_found=yes
-  ac_install_sh=
-  for ac_aux in $ac_aux_files
-  do
-    # As a special case, if "install-sh" is required, that requirement
-    # can be satisfied by any of "install-sh", "install.sh", or "shtool",
-    # and $ac_install_sh is set appropriately for whichever one is found.
-    if test x"$ac_aux" = x"install-sh"
-    then
-      if test -f "${as_dir}install-sh"; then
-        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}install-sh found" >&5
-        ac_install_sh="${as_dir}install-sh -c"
-      elif test -f "${as_dir}install.sh"; then
-        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}install.sh found" >&5
-        ac_install_sh="${as_dir}install.sh -c"
-      elif test -f "${as_dir}shtool"; then
-        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}shtool found" >&5
-        ac_install_sh="${as_dir}shtool install -c"
-      else
-        ac_aux_dir_found=no
-        if $ac_first_candidate; then
-          ac_missing_aux_files="${ac_missing_aux_files} install-sh"
-        else
-          break
-        fi
-      fi
-    else
-      if test -f "${as_dir}${ac_aux}"; then
-        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}${ac_aux} found" >&5
-      else
-        ac_aux_dir_found=no
-        if $ac_first_candidate; then
-          ac_missing_aux_files="${ac_missing_aux_files} ${ac_aux}"
-        else
-          break
-        fi
-      fi
-    fi
-  done
-  if test "$ac_aux_dir_found" = yes; then
-    ac_aux_dir="$as_dir"
-    break
-  fi
-  ac_first_candidate=false
-
-  as_found=false
-done
-IFS=$as_save_IFS
-if $as_found
-then :
-
-else $as_nop
-  as_fn_error $? "cannot find required auxiliary files:$ac_missing_aux_files" "$LINENO" 5
-fi
-
-
-# These three variables are undocumented and unsupported,
-# and are intended to be withdrawn in a future Autoconf release.
-# They can cause serious problems if a builder's source tree is in a directory
-# whose full name contains unusual characters.
-if test -f "${ac_aux_dir}config.guess"; then
-  ac_config_guess="$SHELL ${ac_aux_dir}config.guess"
-fi
-if test -f "${ac_aux_dir}config.sub"; then
-  ac_config_sub="$SHELL ${ac_aux_dir}config.sub"
-fi
-if test -f "$ac_aux_dir/configure"; then
-  ac_configure="$SHELL ${ac_aux_dir}configure"
-fi
-
-# Check that the precious variables saved in the cache have kept the same
-# value.
-ac_cache_corrupted=false
-for ac_var in $ac_precious_vars; do
-  eval ac_old_set=\$ac_cv_env_${ac_var}_set
-  eval ac_new_set=\$ac_env_${ac_var}_set
-  eval ac_old_val=\$ac_cv_env_${ac_var}_value
-  eval ac_new_val=\$ac_env_${ac_var}_value
-  case $ac_old_set,$ac_new_set in
-    set,)
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
-      ac_cache_corrupted=: ;;
-    ,set)
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
-      ac_cache_corrupted=: ;;
-    ,);;
-    *)
-      if test "x$ac_old_val" != "x$ac_new_val"; then
-	# differences in whitespace do not lead to failure.
-	ac_old_val_w=`echo x $ac_old_val`
-	ac_new_val_w=`echo x $ac_new_val`
-	if test "$ac_old_val_w" != "$ac_new_val_w"; then
-	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
-	  ac_cache_corrupted=:
-	else
-	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
-printf "%s\n" "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
-	  eval $ac_var=\$ac_old_val
-	fi
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
-printf "%s\n" "$as_me:   former value:  \`$ac_old_val'" >&2;}
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
-printf "%s\n" "$as_me:   current value: \`$ac_new_val'" >&2;}
-      fi;;
-  esac
-  # Pass precious variables to config.status.
-  if test "$ac_new_set" = set; then
-    case $ac_new_val in
-    *\'*) ac_arg=$ac_var=`printf "%s\n" "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
-    *) ac_arg=$ac_var=$ac_new_val ;;
-    esac
-    case " $ac_configure_args " in
-      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
-      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
-    esac
-  fi
-done
-if $ac_cache_corrupted; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
-printf "%s\n" "$as_me: error: changes in the environment can compromise the build" >&2;}
-  as_fn_error $? "run \`${MAKE-make} distclean' and/or \`rm $cache_file'
-	    and start over" "$LINENO" 5
-fi
-## -------------------- ##
-## Main body of script. ##
-## -------------------- ##
-
-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
-
-
-am__api_version='1.16'
-
-
-
-  # Find a good install program.  We prefer a C program (faster),
-# so one script is as good as another.  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.
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
-printf %s "checking for a BSD-compatible install... " >&6; }
-if test -z "$INSTALL"; then
-if test ${ac_cv_path_install+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  case $as_dir in #(((
-    '') as_dir=./ ;;
-    */) ;;
-    *) as_dir=$as_dir/ ;;
-  esac
-    # Account for fact that we put trailing slashes in our PATH walk.
-case $as_dir in #((
-  ./ | /[cC]/* | \
-  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
-  ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
-  /usr/ucb/* ) ;;
-  *)
-    # OSF1 and SCO ODT 3.0 have their own names for install.
-    # Don't use installbsd from OSF since it installs stuff as root
-    # by default.
-    for ac_prog in ginstall scoinst install; do
-      for ac_exec_ext in '' $ac_executable_extensions; do
-	if as_fn_executable_p "$as_dir$ac_prog$ac_exec_ext"; then
-	  if test $ac_prog = install &&
-	    grep dspmsg "$as_dir$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
-	    # AIX install.  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 ${ac_cv_path_install+y}; then
-    INSTALL=$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=$ac_install_sh
-  fi
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
-printf "%s\n" "$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='${INSTALL} -m 644'
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5
-printf %s "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
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
-# If we didn't sleep, we still need to ensure time stamps of config.status and
-# generated files are strictly newer.
-am_sleep_pid=
-if grep 'slept: no' conftest.file >/dev/null 2>&1; then
-  ( sleep 1 ) &
-  am_sleep_pid=$!
-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,$//'
-program_transform_name=`printf "%s\n" "$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="$MISSING "
-else
-  am_missing_run=
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5
-printf "%s\n" "$as_me: WARNING: 'missing' script is too old or missing" >&2;}
-fi
-
-if test x"${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=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-printf %s "checking for $ac_word... " >&6; }
-if test ${ac_cv_prog_STRIP+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$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
-  case $as_dir in #(((
-    '') as_dir=./ ;;
-    */) ;;
-    *) as_dir=$as_dir/ ;;
-  esac
-    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="${ac_tool_prefix}strip"
-    printf "%s\n" "$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
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
-printf "%s\n" "$STRIP" >&6; }
-else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
-fi
-
-
-fi
-if test -z "$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=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-printf %s "checking for $ac_word... " >&6; }
-if test ${ac_cv_prog_ac_ct_STRIP+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$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
-  case $as_dir in #(((
-    '') as_dir=./ ;;
-    */) ;;
-    *) as_dir=$as_dir/ ;;
-  esac
-    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"
-    printf "%s\n" "$as_me:${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
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
-printf "%s\n" "$ac_ct_STRIP" >&6; }
-else
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
-fi
-
-  if test "x$ac_ct_STRIP" = x; then
-    STRIP=":"
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-printf "%s\n" "$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"
-
-
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for a race-free mkdir -p" >&5
-printf %s "checking for a race-free mkdir -p... " >&6; }
-if test -z "$MKDIR_P"; then
-  if test ${ac_cv_path_mkdir+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin
-do
-  IFS=$as_save_IFS
-  case $as_dir in #(((
-    '') as_dir=./ ;;
-    */) ;;
-    *) as_dir=$as_dir/ ;;
-  esac
-    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$ac_exec_ext" --version 2>&1` in #(
-	     'mkdir ('*'coreutils) '* | \
-	     'BusyBox '* | \
-	     'mkdir (fileutils) '4.1*)
-	       ac_cv_path_mkdir=$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 ${ac_cv_path_mkdir+y}; then
-    MKDIR_P="$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
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-
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-
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-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
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-
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-
-
-  ac_ext=c
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-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5
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-
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-
-ac_config_commands="$ac_config_commands depfiles"
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} supports the include directive" >&5
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-
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-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
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-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
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-
-
-
-
-
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-
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-
-
-
-
-
-
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-{
-
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-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_safe_to_define___extensions__" >&5
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-
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-{
-
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-_ACEOF
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-
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-{
-
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-_ACEOF
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-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_should_define__xopen_source" >&5
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-
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-
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-
-  printf "%s\n" "#define _GNU_SOURCE 1" >>confdefs.h
-
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-
-  printf "%s\n" "#define _NETBSD_SOURCE 1" >>confdefs.h
-
-  printf "%s\n" "#define _OPENBSD_SOURCE 1" >>confdefs.h
-
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-
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-
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-
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-
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-
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-
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-
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-
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-
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-
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-
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for build system compiler" >&5
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-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ${CC_FOR_BUILD}" >&5
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-
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for __attribute__((__alias__()))" >&5
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-{
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-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $dash_cv_have_attribute_alias" >&5
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-fi
-
-# Check whether --enable-glob was given.
-if test ${enable_glob+y}
-then :
-  enableval=$enable_glob;
-fi
-
-
-
-ac_fn_c_check_header_compile "$LINENO" "alloca.h" "ac_cv_header_alloca_h" "$ac_includes_default"
-if test "x$ac_cv_header_alloca_h" = xyes
-then :
-  printf "%s\n" "#define HAVE_ALLOCA_H 1" >>confdefs.h
-
-fi
-ac_fn_c_check_header_compile "$LINENO" "paths.h" "ac_cv_header_paths_h" "$ac_includes_default"
-if test "x$ac_cv_header_paths_h" = xyes
-then :
-  printf "%s\n" "#define HAVE_PATHS_H 1" >>confdefs.h
-
-fi
-
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC options needed to detect all undeclared functions" >&5
-printf %s "checking for $CC options needed to detect all undeclared functions... " >&6; }
-if test ${ac_cv_c_undeclared_builtin_options+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  ac_save_CFLAGS=$CFLAGS
-   ac_cv_c_undeclared_builtin_options='cannot detect'
-   for ac_arg in '' -fno-builtin; do
-     CFLAGS="$ac_save_CFLAGS $ac_arg"
-     # This test program should *not* compile successfully.
-     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main (void)
-{
-(void) strchr;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-
-else $as_nop
-  # This test program should compile successfully.
-        # No library function is consistently available on
-        # freestanding implementations, so test against a dummy
-        # declaration.  Include always-available headers on the
-        # off chance that they somehow elicit warnings.
-        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <float.h>
-#include <limits.h>
-#include <stdarg.h>
-#include <stddef.h>
-extern void ac_decl (int, char *);
-
-int
-main (void)
-{
-(void) ac_decl (0, (char *) 0);
-  (void) ac_decl;
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  if test x"$ac_arg" = x
-then :
-  ac_cv_c_undeclared_builtin_options='none needed'
-else $as_nop
-  ac_cv_c_undeclared_builtin_options=$ac_arg
-fi
-          break
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-    done
-    CFLAGS=$ac_save_CFLAGS
-
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_undeclared_builtin_options" >&5
-printf "%s\n" "$ac_cv_c_undeclared_builtin_options" >&6; }
-  case $ac_cv_c_undeclared_builtin_options in #(
-  'cannot detect') :
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot make $CC report undeclared builtins
-See \`config.log' for more details" "$LINENO" 5; } ;; #(
-  'none needed') :
-    ac_c_undeclared_builtin_options='' ;; #(
-  *) :
-    ac_c_undeclared_builtin_options=$ac_cv_c_undeclared_builtin_options ;;
-esac
-
-ac_fn_check_decl "$LINENO" "_PATH_BSHELL" "ac_cv_have_decl__PATH_BSHELL" "
-#ifdef HAVE_PATHS_H
-#include <paths.h>
-#endif
-
-" "$ac_c_undeclared_builtin_options" "CFLAGS"
-if test "x$ac_cv_have_decl__PATH_BSHELL" = xyes
-then :
-
-else $as_nop
-
-printf "%s\n" "#define _PATH_BSHELL \"/bin/sh\"" >>confdefs.h
-
-fi
-ac_fn_check_decl "$LINENO" "_PATH_DEVNULL" "ac_cv_have_decl__PATH_DEVNULL" "
-#ifdef HAVE_PATHS_H
-#include <paths.h>
-#endif
-
-" "$ac_c_undeclared_builtin_options" "CFLAGS"
-if test "x$ac_cv_have_decl__PATH_DEVNULL" = xyes
-then :
-
-else $as_nop
-
-printf "%s\n" "#define _PATH_DEVNULL \"/dev/null\"" >>confdefs.h
-
-fi
-ac_fn_check_decl "$LINENO" "_PATH_TTY" "ac_cv_have_decl__PATH_TTY" "
-#ifdef HAVE_PATHS_H
-#include <paths.h>
-#endif
-
-" "$ac_c_undeclared_builtin_options" "CFLAGS"
-if test "x$ac_cv_have_decl__PATH_TTY" = xyes
-then :
-
-else $as_nop
-
-printf "%s\n" "#define _PATH_TTY \"/dev/tty\"" >>confdefs.h
-
-fi
-
-ac_fn_check_decl "$LINENO" "isblank" "ac_cv_have_decl_isblank" "#include <ctype.h>
-" "$ac_c_undeclared_builtin_options" "CFLAGS"
-if test "x$ac_cv_have_decl_isblank" = xyes
-then :
-  ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
-fi
-printf "%s\n" "#define HAVE_DECL_ISBLANK $ac_have_decl" >>confdefs.h
-
-
-# The cast to long int works around a bug in the HP C Compiler
-# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
-# This bug is HP SR number 8606223364.
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of intmax_t" >&5
-printf %s "checking size of intmax_t... " >&6; }
-if test ${ac_cv_sizeof_intmax_t+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (intmax_t))" "ac_cv_sizeof_intmax_t"        "$ac_includes_default"
-then :
-
-else $as_nop
-  if test "$ac_cv_type_intmax_t" = yes; then
-     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error 77 "cannot compute sizeof (intmax_t)
-See \`config.log' for more details" "$LINENO" 5; }
-   else
-     ac_cv_sizeof_intmax_t=0
-   fi
-fi
-
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_intmax_t" >&5
-printf "%s\n" "$ac_cv_sizeof_intmax_t" >&6; }
-
-
-
-printf "%s\n" "#define SIZEOF_INTMAX_T $ac_cv_sizeof_intmax_t" >>confdefs.h
-
-
-# The cast to long int works around a bug in the HP C Compiler
-# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
-# This bug is HP SR number 8606223364.
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of long long int" >&5
-printf %s "checking size of long long int... " >&6; }
-if test ${ac_cv_sizeof_long_long_int+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long long int))" "ac_cv_sizeof_long_long_int"        "$ac_includes_default"
-then :
-
-else $as_nop
-  if test "$ac_cv_type_long_long_int" = yes; then
-     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error 77 "cannot compute sizeof (long long int)
-See \`config.log' for more details" "$LINENO" 5; }
-   else
-     ac_cv_sizeof_long_long_int=0
-   fi
-fi
-
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long_long_int" >&5
-printf "%s\n" "$ac_cv_sizeof_long_long_int" >&6; }
-
-
-
-printf "%s\n" "#define SIZEOF_LONG_LONG_INT $ac_cv_sizeof_long_long_int" >>confdefs.h
-
-
-
-if test "x$ac_cv_sizeof_intmax_t" = "x$ac_cv_sizeof_long_long_int"; then
-  intmax_fstr="lld"
-else
-  intmax_fstr="jd"
-fi
-
-ac_fn_check_decl "$LINENO" "PRIdMAX" "ac_cv_have_decl_PRIdMAX" "
-#include <inttypes.h>
-
-" "$ac_c_undeclared_builtin_options" "CFLAGS"
-if test "x$ac_cv_have_decl_PRIdMAX" = xyes
-then :
-
-else $as_nop
-
-printf "%s\n" "#define PRIdMAX \"$intmax_fstr\"" >>confdefs.h
-
-fi
-
-ac_fn_c_check_func "$LINENO" "bsearch" "ac_cv_func_bsearch"
-if test "x$ac_cv_func_bsearch" = xyes
-then :
-  printf "%s\n" "#define HAVE_BSEARCH 1" >>confdefs.h
-
-fi
-ac_fn_c_check_func "$LINENO" "faccessat" "ac_cv_func_faccessat"
-if test "x$ac_cv_func_faccessat" = xyes
-then :
-  printf "%s\n" "#define HAVE_FACCESSAT 1" >>confdefs.h
-
-fi
-ac_fn_c_check_func "$LINENO" "getpwnam" "ac_cv_func_getpwnam"
-if test "x$ac_cv_func_getpwnam" = xyes
-then :
-  printf "%s\n" "#define HAVE_GETPWNAM 1" >>confdefs.h
-
-fi
-ac_fn_c_check_func "$LINENO" "getrlimit" "ac_cv_func_getrlimit"
-if test "x$ac_cv_func_getrlimit" = xyes
-then :
-  printf "%s\n" "#define HAVE_GETRLIMIT 1" >>confdefs.h
-
-fi
-ac_fn_c_check_func "$LINENO" "isalpha" "ac_cv_func_isalpha"
-if test "x$ac_cv_func_isalpha" = xyes
-then :
-  printf "%s\n" "#define HAVE_ISALPHA 1" >>confdefs.h
-
-fi
-ac_fn_c_check_func "$LINENO" "killpg" "ac_cv_func_killpg"
-if test "x$ac_cv_func_killpg" = xyes
-then :
-  printf "%s\n" "#define HAVE_KILLPG 1" >>confdefs.h
-
-fi
-ac_fn_c_check_func "$LINENO" "mempcpy" "ac_cv_func_mempcpy"
-if test "x$ac_cv_func_mempcpy" = xyes
-then :
-  printf "%s\n" "#define HAVE_MEMPCPY 1" >>confdefs.h
-
-fi
-ac_fn_c_check_func "$LINENO" "sigsetmask" "ac_cv_func_sigsetmask"
-if test "x$ac_cv_func_sigsetmask" = xyes
-then :
-  printf "%s\n" "#define HAVE_SIGSETMASK 1" >>confdefs.h
-
-fi
-ac_fn_c_check_func "$LINENO" "stpcpy" "ac_cv_func_stpcpy"
-if test "x$ac_cv_func_stpcpy" = xyes
-then :
-  printf "%s\n" "#define HAVE_STPCPY 1" >>confdefs.h
-
-fi
-ac_fn_c_check_func "$LINENO" "strchrnul" "ac_cv_func_strchrnul"
-if test "x$ac_cv_func_strchrnul" = xyes
-then :
-  printf "%s\n" "#define HAVE_STRCHRNUL 1" >>confdefs.h
-
-fi
-ac_fn_c_check_func "$LINENO" "strsignal" "ac_cv_func_strsignal"
-if test "x$ac_cv_func_strsignal" = xyes
-then :
-  printf "%s\n" "#define HAVE_STRSIGNAL 1" >>confdefs.h
-
-fi
-ac_fn_c_check_func "$LINENO" "strtod" "ac_cv_func_strtod"
-if test "x$ac_cv_func_strtod" = xyes
-then :
-  printf "%s\n" "#define HAVE_STRTOD 1" >>confdefs.h
-
-fi
-ac_fn_c_check_func "$LINENO" "strtoimax" "ac_cv_func_strtoimax"
-if test "x$ac_cv_func_strtoimax" = xyes
-then :
-  printf "%s\n" "#define HAVE_STRTOIMAX 1" >>confdefs.h
-
-fi
-ac_fn_c_check_func "$LINENO" "strtoumax" "ac_cv_func_strtoumax"
-if test "x$ac_cv_func_strtoumax" = xyes
-then :
-  printf "%s\n" "#define HAVE_STRTOUMAX 1" >>confdefs.h
-
-fi
-ac_fn_c_check_func "$LINENO" "sysconf" "ac_cv_func_sysconf"
-if test "x$ac_cv_func_sysconf" = xyes
-then :
-  printf "%s\n" "#define HAVE_SYSCONF 1" >>confdefs.h
-
-fi
-
-
-
-# Check whether --enable-test-workaround was given.
-if test ${enable_test_workaround+y}
-then :
-  enableval=$enable_test_workaround;
-else $as_nop
-  enable_test_workaround=auto
-fi
-
-
-if test "enable_test_workaround" = "auto" &&
-   test "$ac_cv_func_faccessat" = yes; then
-	case `uname -s 2>/dev/null` in
-	GNU/kFreeBSD | \
-	FreeBSD)
-		enable_test_workaround=yes
-	esac
-fi
-if test "$enable_test_workaround" = "yes"; then
-
-printf "%s\n" "#define HAVE_TRADITIONAL_FACCESSAT 1" >>confdefs.h
-
-fi
-
-if test "$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 :
-  printf "%s\n" "#define HAVE_FNMATCH 1" >>confdefs.h
- use_fnmatch=yes
-fi
-
-done
-fi
-
-if test "$use_fnmatch" = yes && test "$enable_glob" = yes; then
-	ac_fn_c_check_func "$LINENO" "glob" "ac_cv_func_glob"
-if test "x$ac_cv_func_glob" = xyes
-then :
-  printf "%s\n" "#define HAVE_GLOB 1" >>confdefs.h
-
-fi
-
-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$ac_cv_func_bsd_signal" = xyes
-then :
-
-printf "%s\n" "#define signal bsd_signal" >>confdefs.h
-
-fi
-
-fi
-
-ac_fn_check_decl "$LINENO" "stat64" "ac_cv_have_decl_stat64" "$ac_includes_default" "$ac_c_undeclared_builtin_options" "CFLAGS"
-if test "x$ac_cv_have_decl_stat64" = xyes
-then :
-  ac_fn_c_check_func "$LINENO" "stat64" "ac_cv_func_stat64"
-if test "x$ac_cv_func_stat64" = xyes
-then :
-
-fi
-
-fi
-if test "$ac_cv_func_stat64" != yes; then
-
-printf "%s\n" "#define fstat64 fstat" >>confdefs.h
-
-
-printf "%s\n" "#define lstat64 lstat" >>confdefs.h
-
-
-printf "%s\n" "#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 $as_nop
-
-
-printf "%s\n" "#define open64 open" >>confdefs.h
-
-
-printf "%s\n" "#define readdir64 readdir" >>confdefs.h
-
-
-printf "%s\n" "#define dirent64 dirent" >>confdefs.h
-
-
-fi
-
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for stat::st_mtim" >&5
-printf %s "checking for stat::st_mtim... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <time.h>
-#include <sys/time.h>
-#include <sys/stat.h>
-int
-main (void)
-{
-struct stat foo; return sizeof(foo.st_mtim.tv_sec)
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  have_st_mtim=yes
-else $as_nop
-  have_st_mtim=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have_st_mtim" >&5
-printf "%s\n" "$have_st_mtim" >&6; }
-if test "$have_st_mtim" = "yes"; then
-
-printf "%s\n" "#define HAVE_ST_MTIM 1" >>confdefs.h
-
-fi
-
-
-# Check whether --with-libedit was given.
-if test ${with_libedit+y}
-then :
-  withval=$with_libedit;
-fi
-
-use_libedit=
-if test "$with_libedit" != "no"; then
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for history_init in -ledit" >&5
-printf %s "checking for history_init in -ledit... " >&6; }
-if test ${ac_cv_lib_edit_history_init+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$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.  */
-char history_init ();
-int
-main (void)
-{
-return history_init ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"
-then :
-  ac_cv_lib_edit_history_init=yes
-else $as_nop
-  ac_cv_lib_edit_history_init=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_edit_history_init" >&5
-printf "%s\n" "$ac_cv_lib_edit_history_init" >&6; }
-if test "x$ac_cv_lib_edit_history_init" = xyes
-then :
-
-		ac_fn_c_check_header_compile "$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_nop
-  as_fn_error $? "Can't find required header files." "$LINENO" 5
-fi
-
-else $as_nop
-
-		as_fn_error $? "Can't find libedit." "$LINENO" 5
-fi
-
-fi
-if test "$use_libedit" != "yes"; then
-
-printf "%s\n" "#define SMALL 1" >>confdefs.h
-
-else
-	export LIBS="$LIBS -ledit"
-	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 :
-  printf "%s\n" "#define HAVE__EL_FN_SH_COMPLETE 1" >>confdefs.h
-
-fi
-
-fi
-# Check whether --enable-lineno was given.
-if test ${enable_lineno+y}
-then :
-  enableval=$enable_lineno;
-fi
-
-if test "$enable_lineno" != "no"; then
-
-printf "%s\n" "#define WITH_LINENO 1" >>confdefs.h
-
-fi
-ac_config_files="$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 $ac_var in #(
-      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
-printf "%s\n" "$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+y} || &/
-     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$cache_file" != "x/dev/null"; then
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-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
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-# Handling of arguments.
-for ac_config_target in $ac_config_targets
-do
-  case $ac_config_target in
-    "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
-    "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
-    "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
-    "src/Makefile") CONFIG_FILES="$CONFIG_FILES src/Makefile" ;;
-
-  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
-  esac
-done
-
-
-# If the user did not use the arguments to specify the items to instantiate,
-# then the envvar interface is used.  Set only those that are not.
-# We use the long form for the default assignment because of an extremely
-# bizarre bug on SunOS 4.1.3.
-if $ac_need_defaults; then
-  test ${CONFIG_FILES+y} || CONFIG_FILES=$config_files
-  test ${CONFIG_HEADERS+y} || CONFIG_HEADERS=$config_headers
-  test ${CONFIG_COMMANDS+y} || CONFIG_COMMANDS=$config_commands
-fi
-
-# Have a temporary directory for convenience.  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$$-$RANDOM
-  (umask 077 && mkdir "$tmp")
-} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
-ac_tmp=$tmp
-
-# Set up the scripts for CONFIG_FILES section.
-# No need to generate them if there are no CONFIG_FILES.
-# This happens for instance with `./config.status config.h'.
-if test -n "$CONFIG_FILES"; then
-
-
-ac_cr=`echo X | tr X '\015'`
-# On cygwin, bash can eat \r inside `` if the user requested igncr.
-# But we know of no other shell where ac_cr would be empty at this
-# point, so we can use a bashism as a fallback.
-if test "x$ac_cr" = x; then
-  eval ac_cr=\$\'\\r\'
-fi
-ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
-if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
-  ac_cs_awk_cr='\\r'
-else
-  ac_cs_awk_cr=$ac_cr
-fi
-
-echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
-_ACEOF
-
-
-{
-  echo "cat >conf$$subs.awk <<_ACEOF" &&
-  echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
-  echo "_ACEOF"
-} >conf$$subs.sh ||
-  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
-ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
-ac_delim='%!_!# '
-for ac_last_try in false false false false false :; do
-  . ./conf$$subs.sh ||
-    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
-
-  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
-  if test $ac_delim_n = $ac_delim_num; then
-    break
-  elif $ac_last_try; then
-    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
-  else
-    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
-  fi
-done
-rm -f conf$$subs.sh
-
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
-_ACEOF
-sed -n '
-h
-s/^/S["/; s/!.*/"]=/
-p
-g
-s/^[^!]*!//
-:repl
-t repl
-s/'"$ac_delim"'$//
-t delim
-:nl
-h
-s/\(.\{148\}\)..*/\1/
-t more1
-s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
-p
-n
-b repl
-:more1
-s/["\\]/\\&/g; s/^/"/; s/$/"\\/
-p
-g
-s/.\{148\}//
-t nl
-:delim
-h
-s/\(.\{148\}\)..*/\1/
-t more2
-s/["\\]/\\&/g; s/^/"/; s/$/"/
-p
-b
-:more2
-s/["\\]/\\&/g; s/^/"/; s/$/"\\/
-p
-g
-s/.\{148\}//
-t delim
-' <conf$$subs.awk | sed '
-/^[^""]/{
-  N
-  s/\n//
-}
-' >>$CONFIG_STATUS || ac_write_fail=1
-rm -f conf$$subs.awk
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-_ACAWK
-cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
-  for (key in S) S_is_set[key] = 1
-  FS = ""
-
-}
-{
-  line = $ 0
-  nfields = split(line, field, "@")
-  substed = 0
-  len = length(field[1])
-  for (i = 2; i < nfields; i++) {
-    key = field[i]
-    keylen = length(key)
-    if (S_is_set[key]) {
-      value = S[key]
-      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
-      len += length(value) + length(field[++i])
-      substed = 1
-    } else
-      len += 1 + keylen
-  }
-
-  print line
-}
-
-_ACAWK
-_ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
-  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
-else
-  cat
-fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
-  || as_fn_error $? "could not setup config files machinery" "$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 _$ac_delim!! "
-  fi
-done
-
-# For the awk script, D is an array of macro values keyed by name,
-# likewise P contains macro parameters if any.  Preserve backslash
-# newline sequences.
-
-ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]*
-sed -n '
-s/.\{148\}/&'"$ac_delim"'/g
-t rset
-:rset
-s/^[	 ]*#[	 ]*define[	 ][	 ]*/ /
-t def
-d
-:def
-s/\\$//
-t bsnl
-s/["\\]/\\&/g
-s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
-D["\1"]=" \3"/p
-s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2"/p
-d
-:bsnl
-s/["\\]/\\&/g
-s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
-D["\1"]=" \3\\\\\\n"\\/p
-t cont
-s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p
-t cont
-d
-:cont
-n
-s/.\{148\}/&'"$ac_delim"'/g
-t clear
-:clear
-s/\\$//
-t bsnlc
-s/["\\]/\\&/g; s/^/"/; s/$/"/p
-d
-:bsnlc
-s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p
-b cont
-' <confdefs.h | sed '
-s/'"$ac_delim"'/"\\\
-"/g' >>$CONFIG_STATUS || ac_write_fail=1
-
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-  for (key in D) D_is_set[key] = 1
-  FS = ""
-}
-/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ {
-  line = \$ 0
-  split(line, arg, " ")
-  if (arg[1] == "#") {
-    defundef = arg[2]
-    mac1 = arg[3]
-  } else {
-    defundef = substr(arg[1], 2)
-    mac1 = arg[2]
-  }
-  split(mac1, mac2, "(") #)
-  macro = mac2[1]
-  prefix = substr(line, 1, index(line, defundef) - 1)
-  if (D_is_set[macro]) {
-    # Preserve the white space surrounding the "#".
-    print prefix "define", macro P[macro] D[macro]
-    next
-  } else {
-    # Replace #undef with comments.  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 $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
-  :[FH]-) ac_tag=-:-;;
-  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
-  esac
-  ac_save_IFS=$IFS
-  IFS=:
-  set x $ac_tag
-  IFS=$ac_save_IFS
-  shift
-  ac_file=$1
-  shift
-
-  case $ac_mode in
-  :L) ac_source=$1;;
-  :[FH])
-    ac_file_inputs=
-    for ac_f
-    do
-      case $ac_f in
-      -) ac_f="$ac_tmp/stdin";;
-      *) # Look for the file first in the build tree, then in the source tree
-	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
-	 # because $ac_f cannot contain `:'.
-	 test -f "$ac_f" ||
-	   case $ac_f in
-	   [\\/$]*) false;;
-	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
-	   esac ||
-	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
-      esac
-      case $ac_f in *\'*) ac_f=`printf "%s\n" "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
-      as_fn_append ac_file_inputs " '$ac_f'"
-    done
-
-    # Let's still pretend it is `configure' which instantiates (i.e., don't
-    # use $as_me), people would be surprised to read:
-    #    /* config.h.  Generated by config.status.  */
-    configure_input='Generated from '`
-	  printf "%s\n" "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
-	`' by configure.'
-    if test x"$ac_file" != x-; then
-      configure_input="$ac_file.  $configure_input"
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
-printf "%s\n" "$as_me: creating $ac_file" >&6;}
-    fi
-    # Neutralize special characters interpreted by sed in replacement strings.
-    case $configure_input in #(
-    *\&* | *\|* | *\\* )
-       ac_sed_conf_input=`printf "%s\n" "$configure_input" |
-       sed 's/[\\\\&|]/\\\\&/g'`;; #(
-    *) ac_sed_conf_input=$configure_input;;
-    esac
-
-    case $ac_tag in
-    *:-:* | *:-) cat >"$ac_tmp/stdin" \
-      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
-    esac
-    ;;
-  esac
-
-  ac_dir=`$as_dirname -- "$ac_file" ||
-$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$ac_file" : 'X\(//\)[^/]' \| \
-	 X"$ac_file" : 'X\(//\)$' \| \
-	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
-printf "%s\n" X"$ac_file" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-  as_dir="$ac_dir"; as_fn_mkdir_p
-  ac_builddir=.
-
-case "$ac_dir" in
-.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
-*)
-  ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
-  # A ".." for each directory in $ac_dir_suffix.
-  ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
-  case $ac_top_builddir_sub in
-  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
-  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
-  esac ;;
-esac
-ac_abs_top_builddir=$ac_pwd
-ac_abs_builddir=$ac_pwd$ac_dir_suffix
-# for backward compatibility:
-ac_top_builddir=$ac_top_build_prefix
-
-case $srcdir in
-  .)  # We are building in place.
-    ac_srcdir=.
-    ac_top_srcdir=$ac_top_builddir_sub
-    ac_abs_top_srcdir=$ac_pwd ;;
-  [\\/]* | ?:[\\/]* )  # Absolute name.
-    ac_srcdir=$srcdir$ac_dir_suffix;
-    ac_top_srcdir=$srcdir
-    ac_abs_top_srcdir=$srcdir ;;
-  *) # Relative name.
-    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
-    ac_top_srcdir=$ac_top_build_prefix$srcdir
-    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
-esac
-ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
-
-
-  case $ac_mode in
-  :F)
-  #
-  # CONFIG_FILE
-  #
-
-  case $INSTALL in
-  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
-  *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
-  esac
-  ac_MKDIR_P=$MKDIR_P
-  case $MKDIR_P in
-  [\\/$]* | ?:[\\/]* ) ;;
-  */*) ac_MKDIR_P=$ac_top_build_prefix$MKDIR_P ;;
-  esac
-_ACEOF
-
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-# If the template does not know about datarootdir, expand it.
-# FIXME: This hack should be removed a few years after 2.60.
-ac_datarootdir_hack=; ac_datarootdir_seen=
-ac_sed_dataroot='
-/datarootdir/ {
-  p
-  q
-}
-/@datadir@/p
-/@docdir@/p
-/@infodir@/p
-/@localedir@/p
-/@mandir@/p'
-case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
-*datarootdir*) ac_datarootdir_seen=yes;;
-*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
-printf "%s\n" "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
-_ACEOF
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-  ac_datarootdir_hack='
-  s&@datadir@&$datadir&g
-  s&@docdir@&$docdir&g
-  s&@infodir@&$infodir&g
-  s&@localedir@&$localedir&g
-  s&@mandir@&$mandir&g
-  s&\\\${datarootdir}&$datarootdir&g' ;;
-esac
-_ACEOF
-
-# Neutralize VPATH when `$srcdir' = `.'.
-# Shell code in configure.ac might set extrasub.
-# FIXME: do we really want to maintain this feature?
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-ac_sed_extra="$ac_vpsub
-$extrasub
-_ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-:t
-/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
-s|@configure_input@|$ac_sed_conf_input|;t t
-s&@top_builddir@&$ac_top_builddir_sub&;t t
-s&@top_build_prefix@&$ac_top_build_prefix&;t t
-s&@srcdir@&$ac_srcdir&;t t
-s&@abs_srcdir@&$ac_abs_srcdir&;t t
-s&@top_srcdir@&$ac_top_srcdir&;t t
-s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
-s&@builddir@&$ac_builddir&;t t
-s&@abs_builddir@&$ac_abs_builddir&;t t
-s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
-s&@INSTALL@&$ac_INSTALL&;t t
-s&@MKDIR_P@&$ac_MKDIR_P&;t t
-$ac_datarootdir_hack
-"
-eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
-  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
-
-test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
-  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
-  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
-      "$ac_tmp/out"`; test -z "$ac_out"; } &&
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
-which seems to be undefined.  Please make sure it is defined" >&5
-printf "%s\n" "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
-which seems to be undefined.  Please make sure it is defined" >&2;}
-
-  rm -f "$ac_tmp/stdin"
-  case $ac_file in
-  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
-  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
-  esac \
-  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
- ;;
-  :H)
-  #
-  # CONFIG_HEADER
-  #
-  if test x"$ac_file" != x-; then
-    {
-      printf "%s\n" "/* $configure_input  */" >&1 \
-      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
-    } >"$ac_tmp/config.h" \
-      || as_fn_error $? "could not create $ac_file" "$LINENO" 5
-    if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
-printf "%s\n" "$as_me: $ac_file is unchanged" >&6;}
-    else
-      rm -f "$ac_file"
-      mv "$ac_tmp/config.h" "$ac_file" \
-	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
-    fi
-  else
-    printf "%s\n" "/* $configure_input  */" >&1 \
-      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
-      || as_fn_error $? "could not create -" "$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 ||
-printf "%s\n" X"$_am_arg" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`/stamp-h$_am_stamp_count
- ;;
-
-  :C)  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
-printf "%s\n" "$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 $CONFIG_FILES ;; #(
-  *) :
-     ;;
-esac
-  shift
-  # Used to flag and report bootstrapping failures.
-  am_rc=0
-  for am_mf
-  do
-    # Strip MF so we end up with the name of the file.
-    am_mf=`printf "%s\n" "$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 ||
-printf "%s\n" 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 ||
-printf "%s\n" 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 $am_rc -ne 0; then
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$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 "$enable_option_checking" != no; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
-printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
-fi
-
-
diff --git a/bin/dash/configure.ac b/bin/dash/configure.ac
deleted file mode 100644
index a395536b..00000000
--- a/bin/dash/configure.ac
+++ /dev/null
@@ -1,195 +0,0 @@
-AC_INIT([dash],[0.5.11.4])
-AM_INIT_AUTOMAKE([foreign subdir-objects])
-AC_CONFIG_SRCDIR([src/main.c])
-
-AC_CONFIG_HEADERS(config.h)
-
-m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES(yes)])
-
-dnl Checks for programs.
-AC_PROG_CC
-AC_USE_SYSTEM_EXTENSIONS
-
-AC_MSG_CHECKING([for build system compiler])
-if test "$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 "$ac_cv_func_signal" != yes; then
-	AC_CHECK_FUNC(bsd_signal,
-		      [AC_DEFINE(signal, bsd_signal,
-				 [klibc has bsd_signal instead of signal])])
-fi
-
-dnl Check for stat64 (dietlibc/klibc).
-AC_CHECK_DECL(stat64, AC_CHECK_FUNC(stat64))
-if test "$ac_cv_func_stat64" != yes; then
-	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])
-fi
-
-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
deleted file mode 100755
index 6b391623..00000000
--- a/bin/dash/depcomp
+++ /dev/null
@@ -1,791 +0,0 @@
-#! /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
deleted file mode 100755
index ec298b53..00000000
--- a/bin/dash/install-sh
+++ /dev/null
@@ -1,541 +0,0 @@
-#!/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.  Create the
-      # directory the slow way, step by step, checking for races as we go.
-
-      case $dstdir in
-        /*) prefix='/';;
-        [-=\(\)!]*) prefix='./';;
-        *)  prefix='';;
-      esac
-
-      oIFS=$IFS
-      IFS=/
-      set -f
-      set fnord $dstdir
-      shift
-      set +f
-      IFS=$oIFS
-
-      prefixes=
-
-      for d
-      do
-        test X"$d" = X && continue
-
-        prefix=$prefix$d
-        if test -d "$prefix"; then
-          prefixes=
-        else
-          if $posix_mkdir; then
-            (umask $mkdir_umask &&
-             $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
-            # Don't fail if two instances are running concurrently.
-            test -d "$prefix" || exit 1
-          else
-            case $prefix in
-              *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
-              *) qprefix=$prefix;;
-            esac
-            prefixes="$prefixes '$qprefix'"
-          fi
-        fi
-        prefix=$prefix/
-      done
-
-      if test -n "$prefixes"; then
-        # Don't fail if two instances are running concurrently.
-        (umask $mkdir_umask &&
-         eval "\$doit_exec \$mkdirprog $prefixes") ||
-          test -d "$dstdir" || exit 1
-        obsolete_mkdir_used=true
-      fi
-    fi
-  fi
-
-  if test -n "$dir_arg"; then
-    { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
-    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
-    { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
-      test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
-  else
-
-    # Make a couple of temp file names in the proper directory.
-    dsttmp=${dstdirslash}_inst.$$_
-    rmtmp=${dstdirslash}_rm.$$_
-
-    # Trap to clean up those temp files at exit.
-    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
-
-    # Copy the file name to the temp name.
-    (umask $cp_umask &&
-     { test -z "$stripcmd" || {
-	 # Create $dsttmp read-write so that cp doesn't create it read-only,
-	 # which would cause strip to fail.
-	 if test -z "$doit"; then
-	   : >"$dsttmp" # No need to fork-exec 'touch'.
-	 else
-	   $doit touch "$dsttmp"
-	 fi
-       }
-     } &&
-     $doit_exec $cpprog "$src" "$dsttmp") &&
-
-    # and set any options; do chmod last to preserve setuid bits.
-    #
-    # If any of these fail, we abort the whole thing.  If we want to
-    # ignore errors from any of these, just make sure not to ignore
-    # errors from the above "$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 $backupsuffix is set, and the file being installed
-      # already exists, attempt a backup.  Don't worry if it fails,
-      # e.g., if mv doesn't support -f.
-      if test -n "$backupsuffix" && test -f "$dst"; then
-        $doit $mvcmd -f "$dst" "$dst$backupsuffix" 2>/dev/null
-      fi
-
-      # Rename the file to the real destination.
-      $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
-
-      # The rename failed, perhaps because mv can't rename something else
-      # to itself, or perhaps because mv is so ancient that it does not
-      # support -f.
-      {
-        # Now remove or move aside any old file at destination location.
-        # We try this two ways since rm can't unlink itself on some
-        # systems and the destination file might be busy for other
-        # reasons.  In this case, the final cleanup might fail but the new
-        # file should still install successfully.
-        {
-          test ! -f "$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
deleted file mode 100755
index 8d0eaad2..00000000
--- a/bin/dash/missing
+++ /dev/null
@@ -1,215 +0,0 @@
-#! /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
deleted file mode 100644
index 644eccb8..00000000
--- a/bin/dash/src/.gitignore
+++ /dev/null
@@ -1,13 +0,0 @@
-*.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
deleted file mode 100644
index fb8229f1..00000000
--- a/bin/dash/src/Makefile.am
+++ /dev/null
@@ -1,70 +0,0 @@
-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) \
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diff --git a/bin/dash/src/TOUR b/bin/dash/src/TOUR
deleted file mode 100644
index e30836e1..00000000
--- a/bin/dash/src/TOUR
+++ /dev/null
@@ -1,343 +0,0 @@
-#	@(#)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
deleted file mode 100644
index daeacbb8..00000000
--- a/bin/dash/src/alias.c
+++ /dev/null
@@ -1,227 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index fb841d64..00000000
--- a/bin/dash/src/alias.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 1a087c32..00000000
--- a/bin/dash/src/arith_yacc.c
+++ /dev/null
@@ -1,304 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index ff34d524..00000000
--- a/bin/dash/src/arith_yacc.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index ec5b5b25..00000000
--- a/bin/dash/src/arith_yylex.c
+++ /dev/null
@@ -1,240 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index f5ac06f2..00000000
--- a/bin/dash/src/bltin/bltin.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index fbc7fb43..00000000
--- a/bin/dash/src/bltin/echo.1
+++ /dev/null
@@ -1,109 +0,0 @@
-.\" 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
deleted file mode 100644
index 38731732..00000000
--- a/bin/dash/src/bltin/printf.1
+++ /dev/null
@@ -1,354 +0,0 @@
-.\" 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
deleted file mode 100644
index 7785735b..00000000
--- a/bin/dash/src/bltin/printf.c
+++ /dev/null
@@ -1,478 +0,0 @@
-/*
- * 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
deleted file mode 100644
index 42435fb3..00000000
--- a/bin/dash/src/bltin/test.1
+++ /dev/null
@@ -1,309 +0,0 @@
-.\" 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 \&gt 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 \&lt 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
deleted file mode 100644
index c7fc479d..00000000
--- a/bin/dash/src/bltin/test.c
+++ /dev/null
@@ -1,700 +0,0 @@
-/*
- * 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
deleted file mode 100644
index 1166a68e..00000000
--- a/bin/dash/src/bltin/times.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * 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
deleted file mode 100644
index 95e420cc..00000000
--- a/bin/dash/src/builtins.def.in
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * 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
deleted file mode 100644
index 1ef1dc56..00000000
--- a/bin/dash/src/cd.c
+++ /dev/null
@@ -1,332 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 87631619..00000000
--- a/bin/dash/src/cd.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 9bc51cd6..00000000
--- a/bin/dash/src/dash.1
+++ /dev/null
@@ -1,2361 +0,0 @@
-.\" 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 \&gt 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 \&lt 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
deleted file mode 100644
index 728ff885..00000000
--- a/bin/dash/src/error.c
+++ /dev/null
@@ -1,238 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 94e30a27..00000000
--- a/bin/dash/src/error.h
+++ /dev/null
@@ -1,129 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index d4190f95..00000000
--- a/bin/dash/src/eval.c
+++ /dev/null
@@ -1,1139 +0,0 @@
-/*-
- * 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:
-		evalfn = evalcommand;
-checkexit:
-		checkexit = ~flags & EV_TESTED;
-		goto calleval;
-	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 (eflag && 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
deleted file mode 100644
index 63e7d865..00000000
--- a/bin/dash/src/eval.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 87354d49..00000000
--- a/bin/dash/src/exec.c
+++ /dev/null
@@ -1,908 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 423b07e6..00000000
--- a/bin/dash/src/exec.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 1730670e..00000000
--- a/bin/dash/src/expand.c
+++ /dev/null
@@ -1,1753 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index c44b8481..00000000
--- a/bin/dash/src/expand.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 91a67c53..00000000
--- a/bin/dash/src/funcs/cmv
+++ /dev/null
@@ -1,47 +0,0 @@
-# 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
deleted file mode 100644
index 5f6ce635..00000000
--- a/bin/dash/src/funcs/dirs
+++ /dev/null
@@ -1,71 +0,0 @@
-# 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
deleted file mode 100644
index c5df95f5..00000000
--- a/bin/dash/src/funcs/kill
+++ /dev/null
@@ -1,47 +0,0 @@
-# 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
deleted file mode 100644
index 215e5352..00000000
--- a/bin/dash/src/funcs/login
+++ /dev/null
@@ -1,36 +0,0 @@
-# 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
deleted file mode 100644
index ec0e7e5a..00000000
--- a/bin/dash/src/funcs/newgrp
+++ /dev/null
@@ -1,35 +0,0 @@
-# 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
deleted file mode 100644
index 7bccf50d..00000000
--- a/bin/dash/src/funcs/popd
+++ /dev/null
@@ -1,71 +0,0 @@
-# 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
deleted file mode 100644
index 19ac8e08..00000000
--- a/bin/dash/src/funcs/pushd
+++ /dev/null
@@ -1,71 +0,0 @@
-# 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
deleted file mode 100644
index 44844678..00000000
--- a/bin/dash/src/funcs/suspend
+++ /dev/null
@@ -1,39 +0,0 @@
-# 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
deleted file mode 100644
index 1b7ad238..00000000
--- a/bin/dash/src/histedit.c
+++ /dev/null
@@ -1,504 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index d56fb28e..00000000
--- a/bin/dash/src/init.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 4167bd18..00000000
--- a/bin/dash/src/input.c
+++ /dev/null
@@ -1,498 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 8acc6e9f..00000000
--- a/bin/dash/src/input.h
+++ /dev/null
@@ -1,101 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 8fb9d4b2..00000000
--- a/bin/dash/src/jobs.c
+++ /dev/null
@@ -1,1547 +0,0 @@
-/*-
- * 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
-#define DOWAIT_WAITCMD_ALL 4
-
-/* 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_ALL, 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;
-
-		block &= ~DOWAIT_WAITCMD_ALL;
-		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
deleted file mode 100644
index 6ac6c56d..00000000
--- a/bin/dash/src/jobs.h
+++ /dev/null
@@ -1,113 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index f2ff0ad8..00000000
--- a/bin/dash/src/machdep.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index a6571538..00000000
--- a/bin/dash/src/mail.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/*-
- * 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 <string.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
-
-/* sizes of mailboxes */
-static off_t mailsize[MAXMBOXES];
-
-
-
-/*
- * Print appropriate message(s) if mail has arrived.
- */
-
-void
-chkmail(void)
-{
-	const char *mpath;
-	char *p;
-	char *q;
-	off_t *msp;
-	struct stackmark smark;
-	struct stat64 statb;
-
-	setstackmark(&smark);
-	mpath = mpathset() ? mpathval() : mailval();
-	for (msp = mailsize; msp < mailsize + MAXMBOXES; msp++) {
-		int len;
-
-		len = padvance_magic(&mpath, nullstr, 2);
-		if (len == -1)
-			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) {
-			*msp = 0;
-			continue;
-		}
-		if (statb.st_size > *msp) {
-			outfmt(
-				&errout, snlfmt,
-				pathopt ? pathopt : "you have mail"
-			);
-		}
-		*msp = statb.st_size;
-	}
-	popstackmark(&smark);
-}
-
-
-void
-changemail(const char *val)
-{
-	memset(mailsize, 0, sizeof(mailsize));
-}
diff --git a/bin/dash/src/mail.h b/bin/dash/src/mail.h
deleted file mode 100644
index 3c6b21d2..00000000
--- a/bin/dash/src/mail.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 7a285346..00000000
--- a/bin/dash/src/main.c
+++ /dev/null
@@ -1,363 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 19e49835..00000000
--- a/bin/dash/src/main.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 60637da1..00000000
--- a/bin/dash/src/memalloc.c
+++ /dev/null
@@ -1,300 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index b9adf764..00000000
--- a/bin/dash/src/memalloc.h
+++ /dev/null
@@ -1,101 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 5ccbbcb8..00000000
--- a/bin/dash/src/miscbltin.c
+++ /dev/null
@@ -1,506 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index dd9a8d1c..00000000
--- a/bin/dash/src/miscbltin.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * 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
deleted file mode 100644
index f1f25932..00000000
--- a/bin/dash/src/mkbuiltins
+++ /dev/null
@@ -1,120 +0,0 @@
-#!/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
deleted file mode 100644
index 9025862e..00000000
--- a/bin/dash/src/mkinit.c
+++ /dev/null
@@ -1,493 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 1903a605..00000000
--- a/bin/dash/src/mknodes.c
+++ /dev/null
@@ -1,448 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index a832eab9..00000000
--- a/bin/dash/src/mksignames.c
+++ /dev/null
@@ -1,417 +0,0 @@
-/* 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&LTOSTOP) */
-  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
deleted file mode 100644
index a23c18ca..00000000
--- a/bin/dash/src/mksyntax.c
+++ /dev/null
@@ -1,315 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 78055be8..00000000
--- a/bin/dash/src/mktokens
+++ /dev/null
@@ -1,97 +0,0 @@
-#!/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
deleted file mode 100644
index 22e5c438..00000000
--- a/bin/dash/src/myhistedit.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index de624b89..00000000
--- a/bin/dash/src/mystring.c
+++ /dev/null
@@ -1,257 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 083ea98c..00000000
--- a/bin/dash/src/mystring.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 9125bc73..00000000
--- a/bin/dash/src/nodes.c.pat
+++ /dev/null
@@ -1,166 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index ceaf478c..00000000
--- a/bin/dash/src/nodetypes
+++ /dev/null
@@ -1,151 +0,0 @@
-# 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
deleted file mode 100644
index a46c23b9..00000000
--- a/bin/dash/src/options.c
+++ /dev/null
@@ -1,558 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 975fe339..00000000
--- a/bin/dash/src/options.h
+++ /dev/null
@@ -1,86 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index e9ee9b4d..00000000
--- a/bin/dash/src/output.c
+++ /dev/null
@@ -1,429 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index c43d4937..00000000
--- a/bin/dash/src/output.h
+++ /dev/null
@@ -1,126 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 499f7f8e..00000000
--- a/bin/dash/src/parser.c
+++ /dev/null
@@ -1,1677 +0,0 @@
-/*-
- * 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 = &ap;
-			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
deleted file mode 100644
index 6597faa8..00000000
--- a/bin/dash/src/parser.h
+++ /dev/null
@@ -1,103 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 895140c3..00000000
--- a/bin/dash/src/redir.c
+++ /dev/null
@@ -1,483 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 1cf27616..00000000
--- a/bin/dash/src/redir.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 98edc8be..00000000
--- a/bin/dash/src/shell.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 4a049e93..00000000
--- a/bin/dash/src/show.c
+++ /dev/null
@@ -1,406 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index d0ccac79..00000000
--- a/bin/dash/src/show.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 844a6410..00000000
--- a/bin/dash/src/system.c
+++ /dev/null
@@ -1,199 +0,0 @@
-/*
- * 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
deleted file mode 100644
index 007952c5..00000000
--- a/bin/dash/src/system.h
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * 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
deleted file mode 100644
index cd84814f..00000000
--- a/bin/dash/src/trap.c
+++ /dev/null
@@ -1,446 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index beaf6605..00000000
--- a/bin/dash/src/trap.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index ca9504ef..00000000
--- a/bin/dash/src/var.c
+++ /dev/null
@@ -1,676 +0,0 @@
-/*-
- * 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
deleted file mode 100644
index 1d1d87a5..00000000
--- a/bin/dash/src/var.h
+++ /dev/null
@@ -1,173 +0,0 @@
-/*-
- * 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/dehtml.l b/bin/dehtml.l
index 3f2de592..799f0926 100644
--- a/bin/dehtml.l
+++ b/bin/dehtml.l
@@ -1,4 +1,4 @@
-/* Copyright (C) 2021  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2021  June 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
diff --git a/bin/downgrade.c b/bin/downgrade.c
index d4c5b598..31019714 100644
--- a/bin/downgrade.c
+++ b/bin/downgrade.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2021  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2021  June 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
diff --git a/bin/dtch.c b/bin/dtch.c
index 2aea53ae..026493dd 100644
--- a/bin/dtch.c
+++ b/bin/dtch.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2017-2019  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2017-2019  June 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
diff --git a/bin/enc.sh b/bin/enc.sh
new file mode 100644
index 00000000..4233f0a3
--- /dev/null
+++ b/bin/enc.sh
@@ -0,0 +1,70 @@
+#!/bin/sh
+set -eu
+
+readonly Command='openssl enc -ChaCha20 -pbkdf2'
+
+base64=
+stdout=false
+mode=encrypt
+force=false
+
+while getopts 'acdef' opt; do
+	case $opt in
+		(a) base64=-a;;
+		(c) stdout=true;;
+		(d) mode=decrypt;;
+		(e) mode=encrypt;;
+		(f) force=true;;
+		(?) exit 1;;
+	esac
+done
+shift $((OPTIND - 1))
+
+confirm() {
+	$force && return 0
+	while :; do
+		printf '%s: overwrite %s? [y/N] ' "$0" "$1" >&2
+		read -r confirm
+		case "$confirm" in
+			(Y*|y*) return 0;;
+			(N*|n*|'') return 1;;
+		esac
+	done
+}
+
+encrypt() {
+	if test -z "${1:-}"; then
+		$Command -e $base64
+	elif $stdout; then
+		$Command -e $base64 -in "$1"
+	else
+		input=$1
+		output="${1}.enc"
+		if test -e "$output" && ! confirm "$output"; then
+			return
+		fi
+		$Command -e $base64 -in "$input" -out "$output"
+	fi
+}
+
+decrypt() {
+	if test -z "${1:-}"; then
+		$Command -d $base64
+	elif $stdout || [ "${1%.enc}" = "$1" ]; then
+		$Command -d $base64 -in "$1"
+	else
+		input=$1
+		output=${1%.enc}
+		if test -e "$output" && ! confirm "$output"; then
+			return
+		fi
+		$Command -d $base64 -in "$input" -out "$output"
+	fi
+}
+
+for input; do
+	$mode "$input"
+done
+if [ $# -eq 0 ]; then
+	$mode
+fi
diff --git a/bin/ever.c b/bin/ever.c
index f983912b..f8ff943b 100644
--- a/bin/ever.c
+++ b/bin/ever.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2017  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2017  June 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
diff --git a/bin/freecell.c b/bin/freecell.c
index 11bed1c0..fbc0fe22 100644
--- a/bin/freecell.c
+++ b/bin/freecell.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2019, 2021  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2019, 2021  June 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
diff --git a/bin/git-comment.pl b/bin/git-comment.pl
index 64361a60..5352702d 100644
--- a/bin/git-comment.pl
+++ b/bin/git-comment.pl
@@ -1,5 +1,5 @@
 #!/usr/bin/env perl
-# Copyright (C) 2021  C. McEnroe <june@causal.agency>
+# Copyright (C) 2021  June 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
@@ -14,8 +14,7 @@
 # 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/>.
 
-# MacPorts is strange.
-use lib (split(/:/, $ENV{GITPERLLIB} || '/opt/local/share/perl5'));
+use lib (split(/:/, $ENV{GITPERLLIB} || '/usr/local/share/perl5'));
 
 use strict;
 use warnings;
diff --git a/bin/glitch.c b/bin/glitch.c
index 9747f35a..d0c926f9 100644
--- a/bin/glitch.c
+++ b/bin/glitch.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2018  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2018, 2021  June 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
@@ -14,8 +14,9 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <arpa/inet.h>
 #include <err.h>
+#include <inttypes.h>
+#include <limits.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdio.h>
@@ -25,286 +26,328 @@
 #include <unistd.h>
 #include <zlib.h>
 
-#define PACKED __attribute__((packed))
-
-#define CRC_INIT (crc32(0, Z_NULL, 0))
+#define ARRAY_LEN(a) (sizeof(a) / sizeof(a[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 pngRead(void *ptr, size_t len, const char *desc) {
+	size_t n = fread(ptr, len, 1, file);
+	if (!n && ferror(file)) err(EX_IOERR, "%s", path);
+	if (!n) errx(EX_DATAERR, "%s: missing %s", path, desc);
+	crc = crc32(crc, ptr, len);
 }
 
-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 void pngWrite(const void *ptr, size_t len) {
+	size_t n = fwrite(ptr, len, 1, file);
+	if (!n) err(EX_IOERR, "%s", path);
+	crc = crc32(crc, ptr, len);
 }
 
-static const uint8_t Signature[8] = "\x89PNG\r\n\x1A\n";
+static const uint8_t Sig[8] = "\x89PNG\r\n\x1A\n";
 
-static void readSignature(void) {
-	uint8_t signature[8];
-	readExpect(signature, 8, "signature");
-	if (0 != memcmp(signature, Signature, 8)) {
+static void sigRead(void) {
+	uint8_t sig[sizeof(Sig)];
+	pngRead(sig, sizeof(sig), "signature");
+	if (memcmp(sig, Sig, sizeof(sig))) {
 		errx(EX_DATAERR, "%s: invalid signature", path);
 	}
 }
 
-static void writeSignature(void) {
-	writeExpect(Signature, sizeof(Signature));
+static void sigWrite(void) {
+	pngWrite(Sig, sizeof(Sig));
 }
 
-struct PACKED Chunk {
-	uint32_t size;
-	char type[4];
-};
+static uint32_t u32Read(const char *desc) {
+	uint8_t b[4];
+	pngRead(b, sizeof(b), desc);
+	return (uint32_t)b[0] << 24 | (uint32_t)b[1] << 16
+		| (uint32_t)b[2] << 8 | (uint32_t)b[3];
+}
 
-static const char *typeStr(struct Chunk chunk) {
-	static char buf[5];
-	memcpy(buf, chunk.type, 4);
-	return buf;
+static void u32Write(uint32_t x) {
+	uint8_t b[4] = { x >> 24 & 0xFF, x >> 16 & 0xFF, x >> 8 & 0xFF, x & 0xFF };
+	pngWrite(b, sizeof(b));
 }
 
-static struct Chunk readChunk(void) {
+struct Chunk {
+	uint32_t len;
+	char type[5];
+};
+
+static struct Chunk chunkRead(void) {
 	struct Chunk chunk;
-	readExpect(&chunk, sizeof(chunk), "chunk");
-	chunk.size = ntohl(chunk.size);
-	crc = crc32(CRC_INIT, (Byte *)chunk.type, sizeof(chunk.type));
+	chunk.len = u32Read("chunk length");
+	crc = crc32(0, Z_NULL, 0);
+	pngRead(chunk.type, 4, "chunk type");
+	chunk.type[4] = 0;
 	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 chunkWrite(struct Chunk chunk) {
+	u32Write(chunk.len);
+	crc = crc32(0, Z_NULL, 0);
+	pngWrite(chunk.type, 4);
 }
 
-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 crcRead(void) {
+	uint32_t expect = crc;
+	uint32_t actual = u32Read("CRC32");
+	if (actual == expect) return;
+	errx(
+		EX_DATAERR, "%s: expected CRC32 %08X, found %08X",
+		path, expect, actual
+	);
 }
 
-static void writeCrc(void) {
-	uint32_t net = htonl(crc);
-	writeExpect(&net, sizeof(net));
+static void crcWrite(void) {
+	u32Write(crc);
 }
 
-static void skipChunk(struct Chunk chunk) {
-	uint8_t discard[chunk.size];
-	readExpect(discard, sizeof(discard), "chunk data");
-	readCrc();
+static void chunkSkip(struct Chunk chunk) {
+	if (!(chunk.type[0] & 0x20)) {
+		errx(EX_CONFIG, "%s: unsupported critical chunk %s", path, chunk.type);
+	}
+	uint8_t buf[4096];
+	while (chunk.len > sizeof(buf)) {
+		pngRead(buf, sizeof(buf), "chunk data");
+		chunk.len -= sizeof(buf);
+	}
+	if (chunk.len) pngRead(buf, chunk.len, "chunk data");
+	crcRead();
 }
 
-static struct PACKED {
+enum Color {
+	Grayscale = 0,
+	Truecolor = 2,
+	Indexed = 3,
+	GrayscaleAlpha = 4,
+	TruecolorAlpha = 6,
+};
+enum Compression {
+	Deflate,
+};
+enum FilterMethod {
+	Adaptive,
+};
+enum Interlace {
+	Progressive,
+	Adam7,
+};
+
+enum { HeaderLen = 13 };
+static struct {
 	uint32_t width;
 	uint32_t height;
 	uint8_t depth;
-	enum PACKED {
-		Grayscale      = 0,
-		Truecolor      = 2,
-		Indexed        = 3,
-		GrayscaleAlpha = 4,
-		TruecolorAlpha = 6,
-	} color;
+	uint8_t color;
 	uint8_t compression;
 	uint8_t filter;
 	uint8_t interlace;
 } header;
-_Static_assert(13 == sizeof(header), "header size");
 
-static size_t pixelBits(void) {
+static size_t pixelLen;
+static size_t lineLen;
+static size_t dataLen;
+
+static void recalc(void) {
+	size_t pixelBits = header.depth;
 	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();
+		break; case GrayscaleAlpha: pixelBits *= 2;
+		break; case Truecolor: pixelBits *= 3;
+		break; case TruecolorAlpha: pixelBits *= 4;
 	}
+	pixelLen = (pixelBits + 7) / 8;
+	lineLen = (header.width * pixelBits + 7) / 8;
+	dataLen = (1 + lineLen) * header.height;
 }
 
-static size_t pixelSize(void) {
-	return (pixelBits() + 7) / 8;
+static void headerRead(struct Chunk chunk) {
+	if (chunk.len != HeaderLen) {
+		errx(
+			EX_DATAERR, "%s: expected %s length %" PRIu32 ", found %" PRIu32,
+			path, chunk.type, (uint32_t)HeaderLen, chunk.len
+		);
+	}
+	header.width = u32Read("header width");
+	header.height = u32Read("header height");
+	pngRead(&header.depth, 1, "header depth");
+	pngRead(&header.color, 1, "header color");
+	pngRead(&header.compression, 1, "header compression");
+	pngRead(&header.filter, 1, "header filter");
+	pngRead(&header.interlace, 1, "header interlace");
+	crcRead();
+	recalc();
+}
+
+static void headerWrite(void) {
+	struct Chunk ihdr = { HeaderLen, "IHDR" };
+	chunkWrite(ihdr);
+	u32Write(header.width);
+	u32Write(header.height);
+	pngWrite(&header.depth, 1);
+	pngWrite(&header.color, 1);
+	pngWrite(&header.compression, 1);
+	pngWrite(&header.filter, 1);
+	pngWrite(&header.interlace, 1);
+	crcWrite();
 }
 
-static size_t lineSize(void) {
-	return (header.width * pixelBits() + 7) / 8;
-}
+static struct {
+	uint32_t len;
+	uint8_t rgb[256][3];
+} pal;
 
-static size_t dataSize(void) {
-	return (1 + lineSize()) * header.height;
+static struct {
+	uint32_t len;
+	uint8_t a[256];
+} trans;
+
+static void palClear(void) {
+	pal.len = 0;
+	trans.len = 0;
 }
 
-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));
+static void palRead(struct Chunk chunk) {
+	if (chunk.len % 3) {
+		errx(
+			EX_DATAERR, "%s: %s length %" PRIu32 " not divisible by 3",
+			path, chunk.type, chunk.len
+		);
 	}
-	if (ihdr.size != sizeof(header)) {
+	pal.len = chunk.len / 3;
+	if (pal.len > 256) {
 		errx(
-			EX_DATAERR, "%s: expected IHDR size %zu, found %u",
-			path, sizeof(header), ihdr.size
+			EX_DATAERR, "%s: %s length %" PRIu32 " > 256",
+			path, chunk.type, pal.len
 		);
 	}
-	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);
+	pngRead(pal.rgb, chunk.len, "palette data");
+	crcRead();
 }
 
-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 void palWrite(void) {
+	struct Chunk plte = { 3 * pal.len, "PLTE" };
+	chunkWrite(plte);
+	pngWrite(pal.rgb, plte.len);
+	crcWrite();
 }
 
-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);
+static void transRead(struct Chunk chunk) {
+	trans.len = chunk.len;
+	if (trans.len > 256) {
+		errx(
+			EX_DATAERR, "%s: %s length %" PRIu32 " > 256",
+			path, chunk.type, trans.len
+		);
 	}
-	palette.len = chunk.size / 3;
-	readExpect(palette.entries, chunk.size, "palette data");
-	readCrc();
+	pngRead(trans.a, chunk.len, "transparency data");
+	crcRead();
 }
 
-static void writePalette(void) {
-	struct Chunk plte = { .size = 3 * palette.len, .type = "PLTE" };
-	writeChunk(plte);
-	writeExpect(palette.entries, plte.size);
-	writeCrc();
+static void transWrite(void) {
+	struct Chunk trns = { trans.len, "tRNS" };
+	chunkWrite(trns);
+	pngWrite(trans.a, trns.len);
+	crcWrite();
 }
 
 static uint8_t *data;
 
-static void readData(void) {
-	data = malloc(dataSize());
-	if (!data) err(EX_OSERR, "malloc(%zu)", dataSize());
+static void dataAlloc(void) {
+	data = malloc(dataLen);
+	if (!data) err(EX_OSERR, "malloc");
+}
 
-	struct z_stream_s stream = { .next_out = data, .avail_out = dataSize() };
+static void dataRead(struct Chunk chunk) {
+	z_stream stream = { .next_out = data, .avail_out = dataLen };
 	int error = inflateInit(&stream);
-	if (error != Z_OK) errx(EX_SOFTWARE, "%s: inflateInit: %s", path, stream.msg);
+	if (error != Z_OK) errx(EX_SOFTWARE, "inflateInit: %s", 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();
+		if (strcmp(chunk.type, "IDAT")) {
+			errx(EX_DATAERR, "%s: missing IDAT chunk", path);
+		}
 
-			stream.next_in = idat;
-			stream.avail_in = chunk.size;
-			int error = inflate(&stream, Z_SYNC_FLUSH);
-			free(idat);
+		uint8_t *idat = malloc(chunk.len);
+		if (!idat) err(EX_OSERR, "malloc");
 
-			if (error == Z_STREAM_END) break;
-			if (error != Z_OK) errx(EX_DATAERR, "%s: inflate: %s", path, stream.msg);
+		pngRead(idat, chunk.len, "image data");
+		crcRead();
+		
+		stream.next_in = idat;
+		stream.avail_in = chunk.len;
+		error = inflate(&stream, Z_SYNC_FLUSH);
+		free(idat);
 
-		} else if (0 == memcmp(chunk.type, "IEND", 4)) {
-			errx(EX_DATAERR, "%s: missing IDAT chunk", path);
-		} else {
-			skipChunk(chunk);
+		if (error == Z_STREAM_END) break;
+		if (error != Z_OK) {
+			errx(EX_DATAERR, "%s: inflate: %s", path, stream.msg);
 		}
-	}
 
+		chunk = chunkRead();
+	}
 	inflateEnd(&stream);
-	if ((size_t)stream.total_out != dataSize()) {
+	if ((size_t)stream.total_out != dataLen) {
 		errx(
-			EX_DATAERR, "%s: expected data size %zu, found %zu",
-			path, dataSize(), (size_t)stream.total_out
+			EX_DATAERR, "%s: expected data length %zu, found %zu",
+			path, dataLen, (size_t)stream.total_out
 		);
 	}
 }
 
-static void writeData(void) {
-	uLong size = compressBound(dataSize());
-	uint8_t *deflate = malloc(size);
-	if (!deflate) err(EX_OSERR, "malloc");
+static void dataWrite(void) {
+	z_stream stream = {
+		.next_in = data,
+		.avail_in = dataLen,
+	};
+	int error = deflateInit2(
+		&stream, Z_BEST_COMPRESSION, Z_DEFLATED, 15, 8, Z_FILTERED
+	);
+	if (error != Z_OK) errx(EX_SOFTWARE, "deflateInit2: %s", stream.msg);
 
-	int error = compress2(deflate, &size, data, dataSize(), Z_BEST_SPEED);
-	if (error != Z_OK) errx(EX_SOFTWARE, "%s: compress2: %d", path, error);
+	uLong bound = deflateBound(&stream, dataLen);
+	uint8_t *buf = malloc(bound);
+	if (!buf) err(EX_OSERR, "malloc");
 
-	struct Chunk idat = { .size = size, .type = "IDAT" };
-	writeChunk(idat);
-	writeExpect(deflate, size);
-	writeCrc();
+	stream.next_out = buf;
+	stream.avail_out = bound;
+	deflate(&stream, Z_FINISH);
+	deflateEnd(&stream);
 
-	free(deflate);
-}
+	struct Chunk idat = { stream.total_out, "IDAT" };
+	chunkWrite(idat);
+	pngWrite(buf, stream.total_out);
+	crcWrite();
+	free(buf);
 
-static void writeEnd(void) {
-	struct Chunk iend = { .size = 0, .type = "IEND" };
-	writeChunk(iend);
-	writeCrc();
+	struct Chunk iend = { 0, "IEND" };
+	chunkWrite(iend);
+	crcWrite();
 }
 
-enum PACKED Filter {
+enum Filter {
 	None,
 	Sub,
 	Up,
 	Average,
 	Paeth,
-	FilterCount,
+	FilterCap,
 };
 
-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;
+	uint8_t x, a, b, c;
 };
 
+static bool brokenPaeth;
 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);
+	int32_t pa = labs(p - (int32_t)f.a);
+	int32_t pb = labs(p - (int32_t)f.b);
+	int32_t pc = labs(p - (int32_t)f.c);
 	if (pa <= pb && pa <= pc) return f.a;
-	if (options.brokenPaeth) {
+	if (brokenPaeth) {
 		if (pb < pc) return f.b;
 	} else {
 		if (pb <= pc) return f.b;
@@ -319,7 +362,7 @@ static uint8_t recon(enum Filter type, struct Bytes f) {
 		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();
+		default: abort();
 	}
 }
 
@@ -330,59 +373,59 @@ static uint8_t filt(enum Filter type, struct Bytes f) {
 		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();
+		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 uint8_t *lineType(uint32_t y) {
+	return &data[y * (1 + lineLen)];
+}
+static uint8_t *lineData(uint32_t y) {
+	return 1 + lineType(y);
 }
 
 static struct Bytes origBytes(uint32_t y, size_t i) {
-	bool a = (i >= pixelSize()), b = (y > 0), c = (a && b);
+	bool a = (i >= pixelLen), 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,
+		.x = lineData(y)[i],
+		.a = (a ? lineData(y)[i-pixelLen] : 0),
+		.b = (b ? lineData(y-1)[i] : 0),
+		.c = (c ? lineData(y-1)[i-pixelLen] : 0),
 	};
 }
 
-static void reconData(void) {
+static bool reconFilter;
+static void dataRecon(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));
+		for (size_t i = 0; i < lineLen; ++i) {
+			if (reconFilter) {
+				lineData(y)[i] = filt(*lineType(y), origBytes(y, i));
 			} else {
-				lines[y]->data[i] = recon(lines[y]->type, origBytes(y, i));
+				lineData(y)[i] = recon(*lineType(y), origBytes(y, i));
 			}
 		}
-		lines[y]->type = None;
+		*lineType(y) = 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};
+static bool filterRecon;
+static size_t applyFilter;
+static enum Filter applyFilters[256];
+static size_t declFilter;
+static enum Filter declFilters[256];
+
+static void dataFilter(void) {
+	uint8_t *filter[FilterCap];
+	for (enum Filter i = None; i < FilterCap; ++i) {
+		filter[i] = malloc(lineLen);
+		if (!filter[i]) err(EX_OSERR, "malloc");
+	}
+	for (uint32_t y = header.height-1; y < header.height; --y) {
+		uint32_t heuristic[FilterCap] = {0};
 		enum Filter minType = None;
-		for (enum Filter type = None; type < FilterCount; ++type) {
-			for (size_t i = 0; i < lineSize(); ++i) {
-				if (options.recon) {
+		for (enum Filter type = None; type < FilterCap; ++type) {
+			for (size_t i = 0; i < lineLen; ++i) {
+				if (filterRecon) {
 					filter[type][i] = recon(type, origBytes(y, i));
 				} else {
 					filter[type][i] = filt(type, origBytes(y, i));
@@ -391,49 +434,26 @@ static void filterData(void) {
 			}
 			if (heuristic[type] < heuristic[minType]) minType = type;
 		}
-
-		if (options.declareFilter) {
-			lines[y]->type = options.declareFilters[y % options.declareFilter];
+		if (declFilter) {
+			*lineType(y) = declFilters[y % declFilter];
 		} else {
-			lines[y]->type = minType;
+			*lineType(y) = minType;
 		}
-
-		if (options.applyFilter) {
-			enum Filter type = options.applyFilters[y % options.applyFilter];
-			memcpy(lines[y]->data, filter[type], lineSize());
+		if (applyFilter) {
+			memcpy(lineData(y), filter[applyFilters[y % applyFilter]], lineLen);
 		} else {
-			memcpy(lines[y]->data, filter[minType], lineSize());
+			memcpy(lineData(y), filter[minType], lineLen);
 		}
 	}
-}
-
-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());
+	for (enum Filter i = None; i < FilterCap; ++i) {
+		free(filter[i]);
 	}
 }
 
-static void zeroY(void) {
-	memset(lines[0]->data, 0, lineSize());
-}
+static bool invertData;
+static bool mirrorData;
+static bool zeroX;
+static bool zeroY;
 
 static void glitch(const char *inPath, const char *outPath) {
 	if (inPath) {
@@ -441,98 +461,145 @@ static void glitch(const char *inPath, const char *outPath) {
 		file = fopen(path, "r");
 		if (!file) err(EX_NOINPUT, "%s", path);
 	} else {
-		path = "(stdin)";
+		path = "stdin";
 		file = stdin;
 	}
 
-	readSignature();
-	readHeader();
-	if (header.color == Indexed) readPalette();
-	readData();
+	sigRead();
+	struct Chunk ihdr = chunkRead();
+	if (strcmp(ihdr.type, "IHDR")) {
+		errx(EX_DATAERR, "%s: expected IHDR, found %s", path, ihdr.type);
+	}
+	headerRead(ihdr);
+	if (header.interlace != Progressive) {
+		errx(EX_CONFIG, "%s: unsupported interlacing", path);
+	}
+
+	palClear();
+	dataAlloc();
+	for (;;) {
+		struct Chunk chunk = chunkRead();
+		if (!strcmp(chunk.type, "PLTE")) {
+			palRead(chunk);
+		} else if (!strcmp(chunk.type, "tRNS")) {
+			transRead(chunk);
+		} else if (!strcmp(chunk.type, "IDAT")) {
+			dataRead(chunk);
+		} else if (!strcmp(chunk.type, "IEND")) {
+			break;
+		} else {
+			chunkSkip(chunk);
+		}
+	}
 	fclose(file);
 
-	scanlines();
-	reconData();
-	filterData();
-	if (options.invert) invert();
-	if (options.mirror) mirror();
-	if (options.zeroX) zeroX();
-	if (options.zeroY) zeroY();
-	free(lines);
+	dataRecon();
+	dataFilter();
 
+	if (invertData) {
+		for (uint32_t y = 0; y < header.height; ++y) {
+			for (size_t i = 0; i < lineLen; ++i) {
+				lineData(y)[i] ^= 0xFF;
+			}
+		}
+	}
+	if (mirrorData) {
+		for (uint32_t y = 0; y < header.height; ++y) {
+			for (size_t i = 0, j = lineLen-1; i < j; ++i, --j) {
+				uint8_t x = lineData(y)[i];
+				lineData(y)[i] = lineData(y)[j];
+				lineData(y)[j] = x;
+			}
+		}
+	}
+	if (zeroX) {
+		for (uint32_t y = 0; y < header.height; ++y) {
+			memset(lineData(y), 0, pixelLen);
+		}
+	}
+	if (zeroY) {
+		memset(lineData(0), 0, lineLen);
+	}
+
+	char buf[PATH_MAX];
 	if (outPath) {
 		path = outPath;
-		file = fopen(path, "w");
-		if (!file) err(EX_CANTCREAT, "%s", path);
+		if (outPath == inPath) {
+			snprintf(buf, sizeof(buf), "%sg", outPath);
+			file = fopen(buf, "wx");
+			if (!file) err(EX_CANTCREAT, "%s", buf);
+		} else {
+			file = fopen(path, "w");
+			if (!file) err(EX_CANTCREAT, "%s", outPath);
+		}
 	} else {
-		path = "(stdout)";
+		path = "stdout";
 		file = stdout;
 	}
 
-	writeSignature();
-	writeHeader();
-	if (header.color == Indexed) writePalette();
-	writeData();
-	writeEnd();
+	sigWrite();
+	headerWrite();
+	if (header.color == Indexed) {
+		palWrite();
+		if (trans.len) transWrite();
+	}
+	dataWrite();
 	free(data);
-
 	int error = fclose(file);
 	if (error) err(EX_IOERR, "%s", path);
+
+	if (outPath && outPath == inPath) {
+		error = rename(buf, outPath);
+		if (error) err(EX_CANTCREAT, "%s", outPath);
+	}
 }
 
-static enum Filter parseFilter(const char *s) {
-	switch (s[0]) {
+static enum Filter parseFilter(const char *str) {
+	switch (str[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);
+		default: errx(EX_USAGE, "invalid filter type %s", str);
 	}
 }
 
-static uint8_t parseFilters(enum Filter *filters, const char *s) {
-	uint8_t len = 0;
-	do {
-		filters[len++] = parseFilter(s);
-		s = strchr(s, ',');
-	} while (s++);
+static size_t parseFilters(enum Filter *filters, char *str) {
+	size_t len = 0;
+	while (str) {
+		char *filt = strsep(&str, ",");
+		filters[len++] = parseFilter(filt);
+	}
 	return len;
 }
 
 int main(int argc, char *argv[]) {
 	bool stdio = false;
-	char *output = NULL;
+	char *outPath = NULL;
 
-	int opt;
-	while (0 < (opt = getopt(argc, argv, "a:cd:fimo:prxy"))) {
+	for (int opt; 0 < (opt = getopt(argc, argv, "a:cd:fimo:prxy"));) {
 		switch (opt) {
-			break; case 'a':
-				options.applyFilter = parseFilters(options.applyFilters, optarg);
+			break; case 'a': applyFilter = parseFilters(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;
+			break; case 'd': declFilter = parseFilters(declFilters, optarg);
+			break; case 'f': reconFilter = true;
+			break; case 'i': invertData = true;
+			break; case 'm': mirrorData = true;
+			break; case 'o': outPath = optarg;
+			break; case 'p': brokenPaeth = true;
+			break; case 'r': filterRecon = true;
+			break; case 'x': zeroX = true;
+			break; case 'y': zeroY = true;
+			break; default:  return EX_USAGE;
 		}
 	}
 
-	if (argc - optind == 1 && (output || stdio)) {
-		glitch(argv[optind], output);
-	} else if (optind < argc) {
+	if (optind < argc) {
 		for (int i = optind; i < argc; ++i) {
-			glitch(argv[i], argv[i]);
+			glitch(argv[i], (stdio ? NULL : outPath ? outPath : argv[i]));
 		}
 	} else {
-		glitch(NULL, output);
+		glitch(NULL, outPath);
 	}
-
-	return EX_OK;
 }
diff --git a/bin/hilex.c b/bin/hilex.c
index 0bcc5c7f..7d7b3f2d 100644
--- a/bin/hilex.c
+++ b/bin/hilex.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2020  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2020  June 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
@@ -53,7 +53,7 @@ static const struct {
 	{ &LexC, "c", "[.][chlmy]$", NULL },
 	{ &LexMake, "make", "[.](mk|am)$|^Makefile$", NULL },
 	{ &LexMdoc, "mdoc", "[.][1-9]$", "^[.]Dd" },
-	{ &LexSh, "sh", "[.]sh$|^[.](profile|shrc)$", "^#![ ]?/bin/sh" },
+	{ &LexSh, "sh", "[.]sh$|^[.](profile|shrc)$", "^#![ ]?/bin/k?sh" },
 	{ &LexText, "text", "[.]txt$", NULL },
 };
 
diff --git a/bin/hilex.h b/bin/hilex.h
index 882b5f95..b57fc8cc 100644
--- a/bin/hilex.h
+++ b/bin/hilex.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2020  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2020  June 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
diff --git a/bin/htagml.c b/bin/htagml.c
index 32ff1636..1f547be6 100644
--- a/bin/htagml.c
+++ b/bin/htagml.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2021  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2021  June 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
@@ -77,6 +77,10 @@ static char *hstrstr(const char *haystack, const char *needle) {
 	return NULL;
 }
 
+static int isident(int c) {
+	return isalnum(c) || c == '_';
+}
+
 int main(int argc, char *argv[]) {
 	bool pre = false;
 	bool pipe = false;
@@ -190,7 +194,10 @@ int main(int argc, char *argv[]) {
 
 		size_t mlen = strlen(tag);
 		char *match = (pipe ? hstrstr : strstr)(buf, tag);
-		while (match > buf && isalnum(match[-1])) {
+		while (
+			match &&
+			((match > buf && isident(match[-1])) || isident(match[mlen]))
+		) {
 			match = (pipe ? hstrstr : strstr)(&match[mlen], tag);
 		}
 		if (!match && tag[0] == 'M') {
diff --git a/bin/make.l b/bin/make.l
index ae1be2f5..6296716d 100644
--- a/bin/make.l
+++ b/bin/make.l
@@ -1,4 +1,4 @@
-/* Copyright (C) 2020  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2020  June 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
diff --git a/bin/man1/enc.1 b/bin/man1/enc.1
new file mode 100644
index 00000000..32845847
--- /dev/null
+++ b/bin/man1/enc.1
@@ -0,0 +1,55 @@
+.Dd January 30, 2022
+.Dt ENC 1
+.Os
+.
+.Sh NAME
+.Nm enc
+.Nd encrypt and decrypt files
+.
+.Sh SYNOPSIS
+.Nm
+.Op Fl acdef
+.Op Ar
+.
+.Sh DESCRIPTION
+.Nm
+encrypts and decrypts files
+using ChaCha20 via
+.Xr openssl 1 .
+When encrypting files,
+the
+.Pa .enc
+extension is added.
+When decrypting files,
+the
+.Pa .enc
+extension is removed,
+if possible.
+Otherwise output is written
+to standard output.
+Input files are not removed.
+If no files are provided,
+standard input is encrypted or decrypted.
+.
+.Pp
+The arguments are as follows:
+.Bl -tag -width Ds
+.It Fl a
+Encrypted data is Base64-encoded.
+.It Fl c
+Always write to standard output.
+.It Fl d
+Decrypt.
+.It Fl e
+Encrypt.
+This is the default.
+.It Fl f
+Do not ask to confirm overwriting files.
+.El
+.
+.Sh EXAMPLES
+.Bd -literal -offset indent
+$ enc secret.txt
+$ rm secret.txt
+$ enc -d secret.txt.enc
+.Ed
diff --git a/bin/man1/qf.1 b/bin/man1/qf.1
new file mode 100644
index 00000000..8828d723
--- /dev/null
+++ b/bin/man1/qf.1
@@ -0,0 +1,71 @@
+.Dd June  2, 2022
+.Dt QF 1
+.Os
+.
+.Sh NAME
+.Nm qf
+.Nd grep pager
+.
+.Sh SYNOPSIS
+.Nm Op Ar pattern
+.
+.Sh DESCRIPTION
+.Nm
+is a pager for
+.Xr grep 1 ,
+.Xr ag 1 ,
+.Xr rg 1 ,
+etc.\&
+which allows
+jumping to matches in
+.Ev $EDITOR .
+It parses any input
+prefixed by path
+and line number
+separated by a colon
+.Ql ":"
+followed by either a colon
+or a hyphen
+.Ql "-" .
+It otherwise operates similar to
+.Xr less 1 .
+.
+.Pp
+If
+.Ar pattern
+is given,
+the first match on each line
+will be highlighted.
+The
+.Ar pattern
+is interpreted as
+an extended regular expression
+and is matched case-insensitively
+unless it contains an uppercase letter.
+.
+.Pp
+The keys are as follows:
+.Bl -tag -width Ds
+.It Ic Enter
+Open the currently selected line in
+.Ev $EDITOR .
+When the editor exits,
+.Nm
+resumes.
+.It Ic {}
+Jump between files.
+.It Ic gG
+Jump to first or last line.
+.It Ic jk
+Move to next or previous line.
+.It Ic nN
+Jump to next or previous match line.
+.It Ic q
+Exit.
+.It Ic r
+Refresh the display.
+.El
+.
+.Sh EXAMPLES
+.Dl $ ag -C open | qf
+.Dl $ git grep -n open | qf
diff --git a/bin/man1/up.1 b/bin/man1/up.1
index 2240b99a..aece79bd 100644
--- a/bin/man1/up.1
+++ b/bin/man1/up.1
@@ -1,4 +1,4 @@
-.Dd June 21, 2021
+.Dd July 26, 2022
 .Dt UP 1
 .Os
 .
@@ -8,15 +8,9 @@
 .
 .Sh SYNOPSIS
 .Nm
-.Op Fl h
-.Op Ar file
-.
-.Nm
-.Fl c | t
-.Ar command
-.
-.Nm
-.Fl s
+.Op Fl c | h | s | t
+.Op Fl w Ar warn
+.Op Ar file | command
 .
 .Sh DESCRIPTION
 .Nm
@@ -65,6 +59,10 @@ Run a command with
 and
 .Xr shotty 1
 to produce an HTML file for upload.
+.It Fl w Ar warn
+Create an HTML redirect with
+.Ar warn
+in its title.
 .El
 .
 .Pp
diff --git a/bin/man1/when.1 b/bin/man1/when.1
index 0b473573..3f2735f7 100644
--- a/bin/man1/when.1
+++ b/bin/man1/when.1
@@ -1,4 +1,4 @@
-.Dd July 24, 2019
+.Dd September 19, 2022
 .Dt WHEN 1
 .Os
 .
@@ -9,6 +9,8 @@
 .Sh SYNOPSIS
 .Nm
 .Op Ar expr
+.Nm
+.Cm -
 .
 .Sh DESCRIPTION
 .Nm
@@ -18,24 +20,32 @@ If no
 is given,
 expressions are read
 from standard input.
+If
+.Cm -
+is given,
+the intervals between each named date
+and today are printed.
 .
 .Pp
 The grammar is as follows:
 .Bl -tag -width Ds
 .It Sy \&.
 Today's date.
+The empty expression is equivalent.
+.
+.It Ar name Op Sy = Ar date
+A named date.
+Names are alphanumeric including underscores.
 .
 .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.
+Months can be abbreviated to three letters.
 .
 .It Ar day
 A day of the week
 in the current week.
-.Ar day
-must be at least three letters.
+Days can be abbreviated to three letters.
 .
 .It Sy < Ar date
 The date one week before.
@@ -65,6 +75,14 @@ A number of months.
 A number of years.
 .El
 .
+.Sh FILES
+The file
+.Pa $XDG_CONFIG_HOME/when/dates
+or
+.Pa ~/.config/when/dates
+is read before any other expressions,
+if it exists.
+.
 .Sh EXAMPLES
 .Bl -tag -width "Dec 25 - ."
 .It Ic Dec 25 - \&.
@@ -74,3 +92,9 @@ The date next Friday.
 .It Ic \&. + 2w
 Your last day at work.
 .El
+.Pp
+Checking a milestone:
+.Bd -literal -offset indent
+$ echo 'hrt = oct 15 2021' >> ~/.config/when/dates
+$ when -hrt
+.Ed
diff --git a/bin/mdoc.l b/bin/mdoc.l
index f29b6ceb..b6deacbe 100644
--- a/bin/mdoc.l
+++ b/bin/mdoc.l
@@ -1,4 +1,4 @@
-/* Copyright (C) 2020  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2020  June 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
diff --git a/bin/modem.c b/bin/modem.c
index 2133ae08..4392e071 100644
--- a/bin/modem.c
+++ b/bin/modem.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2018  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2018  June 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
diff --git a/bin/mtags.c b/bin/mtags.c
index 11cd9c8a..5c1a057e 100644
--- a/bin/mtags.c
+++ b/bin/mtags.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2021  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2021  June 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
diff --git a/bin/nudge.c b/bin/nudge.c
index 108d2459..8ae916eb 100644
--- a/bin/nudge.c
+++ b/bin/nudge.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2020  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2020  June 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
diff --git a/bin/order.y b/bin/order.y
index c2e87971..b3cbf2df 100644
--- a/bin/order.y
+++ b/bin/order.y
@@ -1,4 +1,4 @@
-/* Copyright (C) 2019  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2019  June 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
diff --git a/bin/pbd.c b/bin/pbd.c
index 2fd401ae..9f47b63e 100644
--- a/bin/pbd.c
+++ b/bin/pbd.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2017  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2017  June 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
diff --git a/bin/png.h b/bin/png.h
index 15b6d13d..0df4699b 100644
--- a/bin/png.h
+++ b/bin/png.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2018  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2018  June 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
diff --git a/bin/pngo.c b/bin/pngo.c
index ba90889a..eb51ccc2 100644
--- a/bin/pngo.c
+++ b/bin/pngo.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2018, 2021  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2018, 2021  June 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
diff --git a/bin/psf2png.c b/bin/psf2png.c
index 1aaa8635..c36238a0 100644
--- a/bin/psf2png.c
+++ b/bin/psf2png.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2018  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2018  June 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
diff --git a/bin/ptee.c b/bin/ptee.c
index 8374bd8f..52350a21 100644
--- a/bin/ptee.c
+++ b/bin/ptee.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2019  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2019  June 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
diff --git a/bin/qf.c b/bin/qf.c
new file mode 100644
index 00000000..1fbf48b9
--- /dev/null
+++ b/bin/qf.c
@@ -0,0 +1,294 @@
+/* Copyright (C) 2022  June 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 <curses.h>
+#include <err.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <regex.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/wait.h>
+#include <sysexits.h>
+#include <unistd.h>
+
+enum Type {
+	File,
+	Match,
+	Context,
+	Text,
+};
+
+struct Line {
+	enum Type type;
+	char *path;
+	unsigned nr;
+	char *text;
+	regmatch_t match;
+};
+
+static struct {
+	struct Line *ptr;
+	size_t len, cap;
+} lines;
+
+static void push(struct Line line) {
+	if (lines.len == lines.cap) {
+		lines.cap = (lines.cap ? lines.cap * 2 : 256);
+		lines.ptr = realloc(lines.ptr, sizeof(*lines.ptr) * lines.cap);
+		if (!lines.ptr) err(EX_OSERR, "realloc");
+	}
+	lines.ptr[lines.len++] = line;
+}
+
+static const char *pattern;
+static regex_t regex;
+
+static void parse(struct Line line) {
+	line.path = strsep(&line.text, ":");
+	if (!line.text) {
+		line.type = Text;
+		line.text = line.path;
+		if (lines.len) line.path = lines.ptr[lines.len-1].path;
+		push(line);
+		return;
+	}
+	char *rest;
+	line.nr = strtoul(line.text, &rest, 10);
+	struct Line prev = {0};
+	if (lines.len) prev = lines.ptr[lines.len-1];
+	if (!prev.path || strcmp(line.path, prev.path)) {
+		if (lines.len) push((struct Line) { .type = Text, .text = " " });
+		line.type = File;
+		push(line);
+	}
+	if (rest > line.text && rest[0] == ':') {
+		line.type = Match;
+		line.text = &rest[1];
+	} else if (rest > line.text && rest[0] == '-') {
+		line.type = Context;
+		line.text = &rest[1];
+	} else {
+		line.type = Text;
+	}
+	if (line.type == Match && pattern) {
+		regexec(&regex, line.text, 1, &line.match, 0);
+	}
+	push(line);
+}
+
+enum {
+	Path = 1,
+	Number = 2,
+	Highlight = 3,
+};
+
+static void curse(void) {
+	set_term(newterm(NULL, stdout, stderr));
+	cbreak();
+	noecho();
+	nodelay(stdscr, true);
+	TABSIZE = 4;
+	curs_set(0);
+	start_color();
+	use_default_colors();
+	init_pair(Path, COLOR_GREEN, -1);
+	init_pair(Number, COLOR_YELLOW, -1);
+	init_pair(Highlight, COLOR_MAGENTA, -1);
+}
+
+static size_t top;
+static size_t cur;
+static bool reading = true;
+
+static void draw(void) {
+	int y = 0, x = 0;
+	for (int i = 0; i < LINES; ++i) {
+		move(i, 0);
+		clrtoeol();
+		if (top + i >= lines.len) {
+			addstr(reading ? "..." : !lines.len ? "No results" : "");
+			break;
+		}
+		struct Line line = lines.ptr[top + i];
+		if (top + i == cur) {
+			getyx(stdscr, y, x);
+			attron(A_REVERSE);
+		} else {
+			attroff(A_REVERSE);
+		}
+		switch (line.type) {
+			break; case File: {
+				color_set(Path, NULL);
+				addstr(line.path);
+				color_set(0, NULL);
+			}
+			break; case Match: {
+				color_set(Number, NULL);
+				printw("%u", line.nr);
+				color_set(0, NULL);
+				addch(':');
+				if (line.match.rm_so == line.match.rm_eo) {
+					addstr(line.text);
+					break;
+				}
+				addnstr(line.text, line.match.rm_so);
+				color_set(Highlight, NULL);
+				addnstr(
+					&line.text[line.match.rm_so],
+					line.match.rm_eo - line.match.rm_so
+				);
+				color_set(0, NULL);
+				addstr(&line.text[line.match.rm_eo]);
+			}
+			break; case Context: {
+				color_set(Number, NULL);
+				printw("%u", line.nr);
+				color_set(0, NULL);
+				addch('-');
+				addstr(line.text);
+			}
+			break; case Text: addstr(line.text);
+		}
+	}
+	move(y, x);
+	refresh();
+}
+
+static void edit(struct Line line) {
+	char cmd[32];
+	snprintf(cmd, sizeof(cmd), "+%u", (line.nr ? line.nr : 1));
+	const char *editor = getenv("EDITOR");
+	if (!editor) editor = "vi";
+	pid_t pid = fork();
+	if (pid < 0) err(EX_OSERR, "fork");
+	if (!pid) {
+		dup2(STDERR_FILENO, STDIN_FILENO);
+		execlp(editor, editor, cmd, line.path, NULL);
+		err(EX_CONFIG, "%s", editor);
+	}
+	int status;
+	pid = waitpid(pid, &status, 0);
+	if (pid < 0) err(EX_OSERR, "waitpid");
+}
+
+static void toPrev(enum Type type) {
+	if (!cur) return;
+	size_t prev = cur - 1;
+	while (prev && lines.ptr[prev].type != type) {
+		prev--;
+	}
+	if (lines.ptr[prev].type == type) {
+		cur = prev;
+	}
+}
+
+static void toNext(enum Type type) {
+	size_t next = cur + 1;
+	while (next < lines.len && lines.ptr[next].type != type) {
+		next++;
+	}
+	if (next < lines.len && lines.ptr[next].type == type) {
+		cur = next;
+	}
+}
+
+static void input(void) {
+	char ch;
+	while (ERR != (ch = getch())) {
+		switch (ch) {
+			break; case '\n': {
+				if (lines.ptr[cur].type == Text) break;
+				endwin();
+				edit(lines.ptr[cur]);
+				refresh();
+			}
+			break; case '{': toPrev(File);
+			break; case '}': toNext(File);
+			break; case 'G': cur = lines.len - 1;
+			break; case 'N': toPrev(Match);
+			break; case 'g': cur = 0;
+			break; case 'j': if (cur + 1 < lines.len) cur++;
+			break; case 'k': if (cur) cur--;
+			break; case 'n': toNext(Match);
+			break; case 'q': {
+				endwin();
+				exit(EX_OK);
+			}
+			break; case 'r': clearok(stdscr, true);
+		}
+	}
+	if (cur < top) top = cur;
+	if (cur >= top + LINES) top = cur - LINES + 1;
+}
+
+int main(int argc, char *argv[]) {
+	if (isatty(STDIN_FILENO)) errx(EX_USAGE, "no input");
+	if (argc > 1) {
+		pattern = argv[1];
+		int flags = REG_EXTENDED | REG_ICASE;
+		for (const char *ch = pattern; *ch; ++ch) {
+			if (isupper(*ch)) {
+				flags &= ~REG_ICASE;
+				break;
+			}
+		}
+		int error = regcomp(&regex, pattern, flags);
+		if (error) errx(EX_USAGE, "invalid pattern");
+	}
+	curse();
+	draw();
+	struct pollfd fds[2] = {
+		{ .fd = STDERR_FILENO, .events = POLLIN },
+		{ .fd = STDIN_FILENO, .events = POLLIN },
+	};
+	size_t len = 0;
+	size_t cap = 4096;
+	char *buf = malloc(cap);
+	if (!buf) err(EX_OSERR, "malloc");
+	while (poll(fds, (reading ? 2 : 1), -1)) {
+		if (fds[0].revents) {
+			input();
+		}
+		if (reading && fds[1].revents) {
+			ssize_t n = read(fds[1].fd, &buf[len], cap - len);
+			if (n < 0) err(EX_IOERR, "read");
+			if (!n) reading = false;
+			len += n;
+			char *ptr = buf;
+			for (
+				char *nl;
+				(nl = memchr(ptr, '\n', &buf[len] - ptr));
+				ptr = &nl[1]
+			) {
+				struct Line line = { .text = strndup(ptr, nl - ptr) };
+				if (!line.text) err(EX_OSERR, "strndup");
+				parse(line);
+			}
+			len -= ptr - buf;
+			memmove(buf, ptr, len);
+			if (len == cap) {
+				cap *= 2;
+				buf = realloc(buf, cap);
+				if (!buf) err(EX_OSERR, "realloc");
+			}
+		}
+		draw();
+	}
+	err(EX_IOERR, "poll");
+}
diff --git a/bin/quick.c b/bin/quick.c
index edf35a3b..d814873d 100644
--- a/bin/quick.c
+++ b/bin/quick.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2021  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2021  June 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
diff --git a/bin/relay.c b/bin/relay.c
index aa7913c9..fd799462 100644
--- a/bin/relay.c
+++ b/bin/relay.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2019  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2019  June 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
diff --git a/bin/scheme.c b/bin/scheme.c
index 33fd8b60..2bae8f82 100644
--- a/bin/scheme.c
+++ b/bin/scheme.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2018, 2019  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2018, 2019  June 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
diff --git a/bin/sh.l b/bin/sh.l
index 9664b009..8f0f7723 100644
--- a/bin/sh.l
+++ b/bin/sh.l
@@ -1,4 +1,4 @@
-/* Copyright (C) 2021  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2021  June 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
@@ -36,7 +36,7 @@ static int pop(void) {
 }
 %}
 
-%s Param Command Arith Backtick
+%s Param Command Arith Backtick Subshell
 %x DQuote HereDocDel HereDoc HereDocLit
 
 word [[:alnum:]_.-]+
@@ -51,7 +51,7 @@ reserved [!{}]|else|do|elif|for|done|fi|then|until|while|if|case|esac
 
 "\\". { return Escape; }
 
-<INITIAL,DQuote,HereDoc,Param,Command,Arith>{
+<INITIAL,DQuote,HereDoc,Param,Command,Arith,Subshell>{
 	"$"[*@#?$!0-9-] |
 	"$"[_[:alpha:][_[:alnum:]]* |
 	"${"[#]?{param}"}" {
@@ -73,6 +73,10 @@ reserved [!{}]|else|do|elif|for|done|fi|then|until|while|if|case|esac
 		BEGIN(push(Backtick));
 		return Subst;
 	}
+	"(" {
+		BEGIN(push(Subshell));
+		return Normal;
+	}
 }
 <Param>"}" |
 <Command>")" |
@@ -81,6 +85,10 @@ reserved [!{}]|else|do|elif|for|done|fi|then|until|while|if|case|esac
 	BEGIN(pop());
 	return Subst;
 }
+<Subshell>")" {
+	BEGIN(pop());
+	return Normal;
+}
 
 "\n" {
 	first = true;
diff --git a/bin/shotty.l b/bin/shotty.l
index ff78d241..dcac43ec 100644
--- a/bin/shotty.l
+++ b/bin/shotty.l
@@ -1,4 +1,4 @@
-/* Copyright (C) 2019, 2021  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2019, 2021  June 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
@@ -181,13 +181,13 @@ ESC \x1B
 		| (wchar_t)(yytext[1] & 0x3F);
 	return Data;
 }
-[\xE0-\xEF][\x80-\xBF]{2} {
+[\xE0-\xEF]([\x80-\xBF]{2}) {
 	ch = (wchar_t)(yytext[0] & 0x0F) << 12
 		| (wchar_t)(yytext[1] & 0x3F) << 6
 		| (wchar_t)(yytext[2] & 0x3F);
 	return Data;
 }
-[\xF0-\xF7][\x80-\xBF]{3} {
+[\xF0-\xF7]([\x80-\xBF]{3}) {
 	ch = (wchar_t)(yytext[0] & 0x07) << 18
 		| (wchar_t)(yytext[1] & 0x3F) << 12
 		| (wchar_t)(yytext[2] & 0x3F) << 6
diff --git a/bin/title.c b/bin/title.c
index 82f89d95..47ff720a 100644
--- a/bin/title.c
+++ b/bin/title.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2019  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2019  June 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
diff --git a/bin/up.sh b/bin/up.sh
index cebc29c4..6305b1ee 100644
--- a/bin/up.sh
+++ b/bin/up.sh
@@ -4,21 +4,32 @@ set -eu
 readonly Host='temp.causal.agency'
 readonly Root='/var/www'
 
+temp=
+temp() {
+	temp=$(mktemp -d)
+	trap 'rm -r "$temp"' EXIT
+}
+
+warn=
 upload() {
 	src=$1
 	ext=${src##*.}
-	ts=$(date +'%s')
-	rand=$(openssl rand -hex 4)
-	url=$(printf '%s/%x%s.%s' "$Host" "$ts" "$rand" "$ext")
+	name=$(printf '%x%s' "$(date +%s)" "$(openssl rand -hex 4)")
+	url="${Host}/${name}.${ext}"
 	scp -q "$src" "${Host}:${Root}/${url}"
+	if test -n "$warn"; then
+		test -n "$temp" || temp
+		cat >"${temp}/warn.html" <<-EOF
+			<!DOCTYPE html>
+			<title>${warn}</title>
+			<meta http-equiv="refresh" content="0;url=${name}.${ext}">
+		EOF
+		url="${Host}/${name}.html"
+		scp -q "${temp}/warn.html" "${Host}:${Root}/${url}"
+	fi
 	echo "https://${url}"
 }
 
-temp() {
-	temp=$(mktemp -d)
-	trap 'rm -r "$temp"' EXIT
-}
-
 uploadText() {
 	temp
 	cat >"${temp}/input.txt"
@@ -64,12 +75,13 @@ uploadTerminal() {
 	upload "${temp}/term.html"
 }
 
-while getopts 'chst' opt; do
+while getopts 'chstw:' opt; do
 	case $opt in
 		(c) fn=uploadCommand;;
 		(h) fn=uploadHilex;;
 		(s) fn=uploadScreen;;
 		(t) fn=uploadTerminal;;
+		(w) warn=$OPTARG;;
 		(?) exit 1;;
 	esac
 done
diff --git a/bin/when.y b/bin/when.y
index ac5c7f00..46651ebb 100644
--- a/bin/when.y
+++ b/bin/when.y
@@ -1,4 +1,4 @@
-/* Copyright (C) 2019  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2019, 2022  June 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
@@ -18,6 +18,9 @@
 
 #include <ctype.h>
 #include <err.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <strings.h>
@@ -30,12 +33,13 @@ static int yylex(void);
 #define YYSTYPE struct tm
 
 static const char *Days[7] = {
-	"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat",
+	"Sunday", "Monday", "Tuesday", "Wednesday",
+	"Thursday", "Friday", "Saturday",
 };
 
 static const char *Months[12] = {
-	"Jan", "Feb", "Mar", "Apr", "May", "Jun",
-	"Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
+	"January", "February", "March", "April", "May", "June",
+	"July", "August", "September", "October", "November", "December",
 };
 
 static const struct tm Week = { .tm_mday = 7 };
@@ -103,12 +107,24 @@ static struct tm dateSub(struct tm date, struct tm scalar) {
 }
 
 static struct tm dateDiff(struct tm a, struct tm b) {
+	time_t atime = timegm(&a), btime = timegm(&b);
+	if (atime < btime) {
+		struct tm x = a;
+		a = b;
+		b = x;
+		time_t xtime = atime;
+		atime = btime;
+		btime = xtime;
+	}
 	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) {
+	if (
+		a.tm_mon < b.tm_mon ||
+		(a.tm_mon == b.tm_mon && a.tm_mday < b.tm_mday)
+	) {
 		diff.tm_year--;
 		diff.tm_mon += 12;
 	}
@@ -117,20 +133,54 @@ static struct tm dateDiff(struct tm a, struct tm b) {
 		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 struct {
+	size_t cap, len;
+	struct tm *ptr;
+} dates;
+
+static struct tm getDate(const char *name) {
+	for (size_t i = 0; i < dates.len; ++i) {
+		if (!strcmp(dates.ptr[i].tm_zone, name)) return dates.ptr[i];
+	}
+	return (struct tm) {0};
+}
+
+static void setDate(const char *name, struct tm date) {
+	for (size_t i = 0; i < dates.len; ++i) {
+		if (strcmp(dates.ptr[i].tm_zone, name)) continue;
+		char *tm_zone = dates.ptr[i].tm_zone;
+		dates.ptr[i] = date;
+		dates.ptr[i].tm_zone = tm_zone;
+		return;
+	}
+	if (dates.len == dates.cap) {
+		dates.cap = (dates.cap ? dates.cap * 2 : 8);
+		dates.ptr = realloc(dates.ptr, sizeof(*dates.ptr) * dates.cap);
+		if (!dates.ptr) err(EX_OSERR, "realloc");
+	}
+	dates.ptr[dates.len] = date;
+	dates.ptr[dates.len].tm_zone = strdup(name);
+	if (!dates.ptr[dates.len].tm_zone) err(EX_OSERR, "strdup");
+	dates.len++;
+}
+
+static bool silent;
+
 static void printDate(struct tm date) {
+	if (silent) return;
 	printf(
-		"%s %s %d %d\n",
+		"%.3s %.3s %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 (silent) return;
 	if (scalar.tm_year) printf("%dy ", scalar.tm_year);
 	if (scalar.tm_mon) printf("%dm ", scalar.tm_mon);
 	if (scalar.tm_mday % 7) {
@@ -153,9 +203,9 @@ static void printScalar(struct tm scalar) {
 
 %}
 
-%token Number Month Day
+%token Name Number Month Day
 %left '+' '-'
-%right '<' '>'
+%right '=' '<' '>'
 
 %%
 
@@ -166,6 +216,8 @@ expr:
 
 date:
 	dateLit
+	| Name { $$ = getDate($1.tm_zone); free($1.tm_zone); }
+	| Name '=' date { setDate($1.tm_zone, $3); free($1.tm_zone); $$ = $3; }
 	| '(' date ')' { $$ = $2; }
 	| '<' date { $$ = dateSub($2, Week); }
 	| '>' date { $$ = dateAdd($2, Week); }
@@ -215,35 +267,77 @@ static int yylex(void) {
 		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;
+	size_t len;
+	for (len = 0; isalnum(input[len]) || input[len] == '_'; ++len);
+
+	if (len >= 3) {
+		for (int i = 0; i < 7; ++i) {
+			if (strncasecmp(input, Days[i], len)) continue;
+			yylval.tm_wday = i;
+			input += len;
+			return Day;
+		}
+
+		for (int i = 0; i < 12; ++i) {
+			if (strncasecmp(input, Months[i], len)) continue;
+			yylval.tm_mon = i;
+			input += len;
+			return Month;
+		}
 	}
 
-	for (int i = 0; i < 12; ++i) {
-		if (strncasecmp(input, Months[i], 3)) continue;
-		while (isalpha(*input)) input++;
-		yylval.tm_mon = i;
-		return Month;
+	if (len && (len != 1 || !strchr("dwmy", *input))) {
+		yylval.tm_zone = strndup(input, len);
+		if (!yylval.tm_zone) err(EX_OSERR, "strndup");
+		input += len;
+		return Name;
 	}
 
 	return *input++;
 }
 
 int main(int argc, char *argv[]) {
+	size_t cap = 0;
+	char *line = NULL;
+
+	char path[PATH_MAX];
+	const char *configHome = getenv("XDG_CONFIG_HOME");
+	if (configHome) {
+		snprintf(path, sizeof(path), "%s/when/dates", configHome);
+	} else {
+		snprintf(path, sizeof(path), "%s/.config/when/dates", getenv("HOME"));
+	}
+
+	FILE *file = fopen(path, "r");
+	if (file) {
+		silent = true;
+		while (0 < getline(&line, &cap, file)) {
+			input = line;
+			yyparse();
+		}
+		fclose(file);
+		silent = false;
+	} else if (errno != ENOENT) {
+		err(EX_CONFIG, "%s", path);
+	}
+
 	if (argc > 1) {
-		input = argv[1];
-		return yyparse();
+		if (strcmp(argv[1], "-")) {
+			input = argv[1];
+			return yyparse();
+		} else {
+			for (size_t i = 0; i < dates.len; ++i) {
+				printf("%s: ", dates.ptr[i].tm_zone);
+				printScalar(dateDiff(today(), dates.ptr[i]));
+			}
+			return EX_OK;
+		}
 	}
 
 	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;
 
diff --git a/bin/xx.c b/bin/xx.c
index 6d04f2f5..39d7ec07 100644
--- a/bin/xx.c
+++ b/bin/xx.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2017  C. McEnroe <june@causal.agency>
+/* Copyright (C) 2017  June 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