Remove 1sh sources

I'm going to recreate it from fresh sh sources for clean git history.

1 files changed, 0 insertions, 594 deletions

diff --git a/bin/1sh/options.c b/bin/1sh/options.c
deleted file mode 100644
index 422c0f19..00000000
--- a/bin/1sh/options.c
+++ /dev/null
@@ -1,594 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (c) 1991, 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.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)options.c	8.2 (Berkeley) 5/4/95";
-#endif
-#endif /* not lint */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: releng/12.0/bin/sh/options.c 326025 2017-11-20 19:49:47Z pfg $");
-
-#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"
-#include "builtins.h"
-#ifndef NO_HISTORY
-#include "myhistedit.h"
-#endif
-
-char *arg0;			/* value of $0 */
-struct shparam shellparam;	/* current positional parameters */
-char **argptr;			/* argument list for builtin commands */
-char *shoptarg;			/* set by nextopt (like getopt) */
-char *nextopt_optptr;		/* used by nextopt */
-
-char *minusc;			/* argument to -c option */
-
-
-static void options(int);
-static void minus_o(char *, int);
-static void setoption(int, int);
-static void setoptionbyindex(int, int);
-static void setparam(int, char **);
-static int getopts(char *, char *, char **, char ***, char **);
-
-
-/*
- * Process the shell command line arguments.
- */
-
-void
-procargs(int argc, char **argv)
-{
-	int i;
-	char *scriptname;
-
-	argptr = argv;
-	if (argc > 0)
-		argptr++;
-	for (i = 0; i < NOPTS; i++)
-		optval[i] = 2;
-	privileged = (getuid() != geteuid() || getgid() != getegid());
-	options(1);
-	if (*argptr == NULL && minusc == NULL)
-		sflag = 1;
-	if (iflag != 0 && sflag == 1 && isatty(0) && isatty(1)) {
-		iflag = 1;
-		if (Eflag == 2)
-			Eflag = 1;
-	}
-	if (mflag == 2)
-		mflag = iflag;
-	for (i = 0; i < NOPTS; i++)
-		if (optval[i] == 2)
-			optval[i] = 0;
-	arg0 = argv[0];
-	if (sflag == 0 && minusc == NULL) {
-		scriptname = *argptr++;
-		setinputfile(scriptname, 0);
-		commandname = arg0 = scriptname;
-	}
-	/* POSIX 1003.2: first arg after -c cmd is $0, remainder $1... */
-	if (argptr && minusc && *argptr)
-		arg0 = *argptr++;
-
-	shellparam.p = argptr;
-	shellparam.reset = 1;
-	/* assert(shellparam.malloc == 0 && shellparam.nparam == 0); */
-	while (*argptr) {
-		shellparam.nparam++;
-		argptr++;
-	}
-	optschanged();
-}
-
-
-void
-optschanged(void)
-{
-	setinteractive();
-#ifndef NO_HISTORY
-	histedit();
-#endif
-	setjobctl(mflag);
-}
-
-/*
- * Process shell options.  The global variable argptr contains a pointer
- * to the argument list; we advance it past the options.
- * If cmdline is true, process the shell's argv; otherwise, process arguments
- * to the set special builtin.
- */
-
-static void
-options(int cmdline)
-{
-	char *kp, *p;
-	int val;
-	int c;
-
-	if (cmdline)
-		minusc = NULL;
-	while ((p = *argptr) != NULL) {
-		argptr++;
-		if ((c = *p++) == '-') {
-			val = 1;
-			/* A "-" or  "--" terminates options */
-			if (p[0] == '\0')
-				goto end_options1;
-			if (p[0] == '-' && p[1] == '\0')
-				goto end_options2;
-			/**
-			 * For the benefit of `#!' lines in shell scripts,
-			 * treat a string of '-- *#.*' the same as '--'.
-			 * This is needed so that a script starting with:
-			 *	#!/bin/sh -- # -*- perl -*-
-			 * will continue to work after a change is made to
-			 * kern/imgact_shell.c to NOT token-ize the options
-			 * specified on a '#!' line.  A bit of a kludge,
-			 * but that trick is recommended in documentation
-			 * for some scripting languages, and we might as
-			 * well continue to support it.
-			 */
-			if (p[0] == '-') {
-				kp = p + 1;
-				while (*kp == ' ' || *kp == '\t')
-					kp++;
-				if (*kp == '#' || *kp == '\0')
-					goto end_options2;
-			}
-		} else if (c == '+') {
-			val = 0;
-		} else {
-			argptr--;
-			break;
-		}
-		while ((c = *p++) != '\0') {
-			if (c == 'c' && cmdline) {
-				char *q;
-
-				q = *argptr++;
-				if (q == NULL || minusc != NULL)
-					error("Bad -c option");
-				minusc = q;
-			} else if (c == 'o') {
-				minus_o(*argptr, val);
-				if (*argptr)
-					argptr++;
-			} else
-				setoption(c, val);
-		}
-	}
-	return;
-
-	/* When processing `set', a single "-" means turn off -x and -v */
-end_options1:
-	if (!cmdline) {
-		xflag = vflag = 0;
-		return;
-	}
-
-	/*
-	 * When processing `set', a "--" means the remaining arguments
-	 * replace the positional parameters in the active shell.  If
-	 * there are no remaining options, then all the positional
-	 * parameters are cleared (equivalent to doing ``shift $#'').
-	 */
-end_options2:
-	if (!cmdline) {
-		if (*argptr == NULL)
-			setparam(0, argptr);
-		return;
-	}
-
-	/*
-	 * At this point we are processing options given to 'sh' on a command
-	 * line.  If an end-of-options marker ("-" or "--") is followed by an
-	 * arg of "#", then skip over all remaining arguments.  Some scripting
-	 * languages (e.g.: perl) document that /bin/sh will implement this
-	 * behavior, and they recommend that users take advantage of it to
-	 * solve certain issues that can come up when writing a perl script.
-	 * Yes, this feature is in /bin/sh to help users write perl scripts.
-	 */
-	p = *argptr;
-	if (p != NULL && p[0] == '#' && p[1] == '\0') {
-		while (*argptr != NULL)
-			argptr++;
-		/* We need to keep the final argument */
-		argptr--;
-	}
-}
-
-static void
-minus_o(char *name, int val)
-{
-	int i;
-	const unsigned char *on;
-	size_t len;
-
-	if (name == NULL) {
-		if (val) {
-			/* "Pretty" output. */
-			out1str("Current option settings\n");
-			for (i = 0, on = optname; i < NOPTS; i++, on += *on + 1)
-				out1fmt("%-16.*s%s\n", *on, on + 1,
-					optval[i] ? "on" : "off");
-		} else {
-			/* Output suitable for re-input to shell. */
-			for (i = 0, on = optname; i < NOPTS; i++, on += *on + 1)
-				out1fmt("%s %co %.*s%s",
-				    i % 6 == 0 ? "set" : "",
-				    optval[i] ? '-' : '+',
-				    *on, on + 1,
-				    i % 6 == 5 || i == NOPTS - 1 ? "\n" : "");
-		}
-	} else {
-		len = strlen(name);
-		for (i = 0, on = optname; i < NOPTS; i++, on += *on + 1)
-			if (*on == len && memcmp(on + 1, name, len) == 0) {
-				setoptionbyindex(i, val);
-				return;
-			}
-		error("Illegal option -o %s", name);
-	}
-}
-
-
-static void
-setoptionbyindex(int idx, int val)
-{
-	if (&optval[idx] == &privileged && !val && privileged) {
-		if (setgid(getgid()) == -1)
-			error("setgid");
-		if (setuid(getuid()) == -1)
-			error("setuid");
-	}
-	optval[idx] = val;
-	if (val) {
-		/* #%$ hack for ksh semantics */
-		if (&optval[idx] == &Vflag)
-			Eflag = 0;
-		else if (&optval[idx] == &Eflag)
-			Vflag = 0;
-	}
-}
-
-static void
-setoption(int flag, int val)
-{
-	int i;
-
-	for (i = 0; i < NSHORTOPTS; i++)
-		if (optletter[i] == flag) {
-			setoptionbyindex(i, val);
-			return;
-		}
-	error("Illegal option -%c", flag);
-}
-
-
-/*
- * Set the shell parameters.
- */
-
-static void
-setparam(int argc, char **argv)
-{
-	char **newparam;
-	char **ap;
-
-	ap = newparam = ckmalloc((argc + 1) * sizeof *ap);
-	while (*argv) {
-		*ap++ = savestr(*argv++);
-	}
-	*ap = NULL;
-	freeparam(&shellparam);
-	shellparam.malloc = 1;
-	shellparam.nparam = argc;
-	shellparam.p = newparam;
-	shellparam.optp = NULL;
-	shellparam.reset = 1;
-	shellparam.optnext = NULL;
-}
-
-
-/*
- * Free the list of positional parameters.
- */
-
-void
-freeparam(struct shparam *param)
-{
-	char **ap;
-
-	if (param->malloc) {
-		for (ap = param->p ; *ap ; ap++)
-			ckfree(*ap);
-		ckfree(param->p);
-	}
-	if (param->optp) {
-		for (ap = param->optp ; *ap ; ap++)
-			ckfree(*ap);
-		ckfree(param->optp);
-	}
-}
-
-
-
-/*
- * The shift builtin command.
- */
-
-int
-shiftcmd(int argc, char **argv)
-{
-	int i, n;
-
-	n = 1;
-	if (argc > 1)
-		n = number(argv[1]);
-	if (n > shellparam.nparam)
-		return 1;
-	INTOFF;
-	shellparam.nparam -= n;
-	if (shellparam.malloc)
-		for (i = 0; i < n; i++)
-			ckfree(shellparam.p[i]);
-	memmove(shellparam.p, shellparam.p + n,
-	    (shellparam.nparam + 1) * sizeof(shellparam.p[0]));
-	shellparam.reset = 1;
-	INTON;
-	return 0;
-}
-
-
-
-/*
- * The set builtin command.
- */
-
-int
-setcmd(int argc, char **argv)
-{
-	if (argc == 1)
-		return showvarscmd(argc, argv);
-	INTOFF;
-	options(0);
-	optschanged();
-	if (*argptr != NULL) {
-		setparam(argc - (argptr - argv), argptr);
-	}
-	INTON;
-	return 0;
-}
-
-
-void
-getoptsreset(const char *value)
-{
-	while (*value == '0')
-		value++;
-	if (strcmp(value, "1") == 0)
-		shellparam.reset = 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 = NULL, **ap;
-	int i;
-
-	if (argc < 3)
-		error("usage: getopts optstring var [arg]");
-
-	if (shellparam.reset == 1) {
-		INTOFF;
-		if (shellparam.optp) {
-			for (ap = shellparam.optp ; *ap ; ap++)
-				ckfree(*ap);
-			ckfree(shellparam.optp);
-			shellparam.optp = NULL;
-		}
-		if (argc > 3) {
-			shellparam.optp = ckmalloc((argc - 2) * sizeof *ap);
-			memset(shellparam.optp, '\0', (argc - 2) * sizeof *ap);
-			for (i = 0; i < argc - 3; i++)
-				shellparam.optp[i] = savestr(argv[i + 3]);
-		}
-		INTON;
-		optbase = argc == 3 ? shellparam.p : shellparam.optp;
-		shellparam.optnext = optbase;
-		shellparam.optptr = NULL;
-		shellparam.reset = 0;
-	} else
-		optbase = shellparam.optp ? shellparam.optp : shellparam.p;
-
-	return getopts(argv[1], argv[2], optbase, &shellparam.optnext,
-		       &shellparam.optptr);
-}
-
-static int
-getopts(char *optstr, char *optvar, char **optfirst, char ***optnext,
-    char **optptr)
-{
-	char *p, *q;
-	char c = '?';
-	int done = 0;
-	int ind = 0;
-	int err = 0;
-	char s[10];
-	const char *newoptarg = NULL;
-
-	if ((p = *optptr) == NULL || *p == '\0') {
-		/* Current word is done, advance */
-		if (*optnext == NULL)
-			return 1;
-		p = **optnext;
-		if (p == NULL || *p != '-' || *++p == '\0') {
-atend:
-			ind = *optnext - optfirst + 1;
-			*optnext = NULL;
-			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';
-				newoptarg = s;
-			}
-			else
-				out2fmt_flush("Illegal option -%c\n", c);
-			c = '?';
-			goto out;
-		}
-		if (*++q == ':')
-			q++;
-	}
-
-	if (*++q == ':') {
-		if (*p == '\0' && (p = **optnext) == NULL) {
-			if (optstr[0] == ':') {
-				s[0] = c;
-				s[1] = '\0';
-				newoptarg = s;
-				c = ':';
-			}
-			else {
-				out2fmt_flush("No arg for -%c option\n", c);
-				c = '?';
-			}
-			goto out;
-		}
-
-		if (p == **optnext)
-			(*optnext)++;
-		newoptarg = p;
-		p = NULL;
-	}
-
-out:
-	if (*optnext != NULL)
-		ind = *optnext - optfirst + 1;
-	*optptr = p;
-	if (newoptarg != NULL)
-		err |= setvarsafe("OPTARG", newoptarg, 0);
-	else {
-		INTOFF;
-		err |= unsetvar("OPTARG");
-		INTON;
-	}
-	fmtstr(s, sizeof(s), "%d", ind);
-	err |= setvarsafe("OPTIND", s, VNOFUNC);
-	s[0] = c;
-	s[1] = '\0';
-	err |= setvarsafe(optvar, s, 0);
-	if (err) {
-		*optnext = NULL;
-		*optptr = NULL;
-		flushall();
-		exraise(EXERROR);
-	}
-	return done;
-}
-
-/*
- * 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 returns the option, or '\0' on
- * end of input.
- */
-
-int
-nextopt(const char *optstring)
-{
-	char *p;
-	const char *q;
-	char c;
-
-	if ((p = nextopt_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')
-			error("Illegal option -%c", c);
-		if (*++q == ':')
-			q++;
-	}
-	if (*++q == ':') {
-		if (*p == '\0' && (p = *argptr++) == NULL)
-			error("No arg for -%c option", c);
-		shoptarg = p;
-		p = NULL;
-	}
-	nextopt_optptr = p;
-	return c;
-}