Remove 1sh

1 files changed, 0 insertions, 430 deletions

diff --git a/bin/1sh/cd.c b/bin/1sh/cd.c
deleted file mode 100644
index 61bb60cf..00000000
--- a/bin/1sh/cd.c
+++ /dev/null
@@ -1,430 +0,0 @@
-/*-
- * 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[] = "@(#)cd.c	8.2 (Berkeley) 5/4/95";
-#endif
-#endif /* not lint */
-#include <sys/cdefs.h>
-/* $FreeBSD: releng/12.1/bin/sh/cd.c 336320 2018-07-15 21:55:17Z jilles $ */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-#include <limits.h>
-
-/*
- * 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 "mystring.h"
-#include "show.h"
-#include "cd.h"
-#include "builtins.h"
-
-static int cdlogical(char *);
-static int cdphysical(char *);
-static int docd(char *, int, int);
-static char *getcomponent(char **);
-static char *findcwd(char *);
-static void updatepwd(char *);
-static char *getpwd(void);
-static char *getpwd2(void);
-
-static char *curdir = NULL;	/* current working directory */
-
-int
-cdcmd(int argc __unused, char **argv __unused)
-{
-	const char *dest;
-	const char *path;
-	char *p;
-	struct stat statb;
-	int ch, phys, print = 0, getcwderr = 0;
-	int rc;
-	int errno1 = ENOENT;
-
-	phys = Pflag;
-	while ((ch = nextopt("eLP")) != '\0') {
-		switch (ch) {
-		case 'e':
-			getcwderr = 1;
-			break;
-		case 'L':
-			phys = 0;
-			break;
-		case 'P':
-			phys = 1;
-			break;
-		}
-	}
-
-	if (*argptr != NULL && argptr[1] != NULL)
-		error("too many arguments");
-
-	if ((dest = *argptr) == NULL && (dest = bltinlookup("HOME", 1)) == NULL)
-		error("HOME not set");
-	if (*dest == '\0')
-		dest = ".";
-	if (dest[0] == '-' && dest[1] == '\0') {
-		dest = bltinlookup("OLDPWD", 1);
-		if (dest == NULL)
-			error("OLDPWD not set");
-		print = 1;
-	}
-	if (dest[0] == '/' ||
-	    (dest[0] == '.' && (dest[1] == '/' || dest[1] == '\0')) ||
-	    (dest[0] == '.' && dest[1] == '.' && (dest[2] == '/' || dest[2] == '\0')) ||
-	    (path = bltinlookup("CDPATH", 1)) == NULL)
-		path = "";
-	while ((p = padvance(&path, NULL, dest)) != NULL) {
-		if (stat(p, &statb) < 0) {
-			if (errno != ENOENT)
-				errno1 = errno;
-		} else if (!S_ISDIR(statb.st_mode))
-			errno1 = ENOTDIR;
-		else {
-			if (!print) {
-				/*
-				 * XXX - rethink
-				 */
-				if (p[0] == '.' && p[1] == '/' && p[2] != '\0')
-					print = strcmp(p + 2, dest);
-				else
-					print = strcmp(p, dest);
-			}
-			rc = docd(p, print, phys);
-			if (rc >= 0)
-				return getcwderr ? rc : 0;
-			if (errno != ENOENT)
-				errno1 = errno;
-		}
-	}
-	error("%s: %s", dest, strerror(errno1));
-	/*NOTREACHED*/
-	return 0;
-}
-
-
-/*
- * Actually change the directory.  In an interactive shell, print the
- * directory name if "print" is nonzero.
- */
-static int
-docd(char *dest, int print, int phys)
-{
-	int rc;
-
-	TRACE(("docd(\"%s\", %d, %d) called\n", dest, print, phys));
-
-	/* If logical cd fails, fall back to physical. */
-	if ((phys || (rc = cdlogical(dest)) < 0) && (rc = cdphysical(dest)) < 0)
-		return (-1);
-
-	if (print && iflag && curdir) {
-		out1fmt("%s\n", curdir);
-		/*
-		 * Ignore write errors to preserve the invariant that the
-		 * current directory is changed iff the exit status is 0
-		 * (or 1 if -e was given and the full pathname could not be
-		 * determined).
-		 */
-		flushout(out1);
-		outclearerror(out1);
-	}
-
-	return (rc);
-}
-
-static int
-cdlogical(char *dest)
-{
-	char *p;
-	char *q;
-	char *component;
-	char *path;
-	struct stat statb;
-	int first;
-	int badstat;
-
-	/*
-	 *  Check each component of the path. If we find a symlink or
-	 *  something we can't stat, clear curdir to force a getcwd()
-	 *  next time we get the value of the current directory.
-	 */
-	badstat = 0;
-	path = stsavestr(dest);
-	STARTSTACKSTR(p);
-	if (*dest == '/') {
-		STPUTC('/', p);
-		path++;
-	}
-	first = 1;
-	while ((q = getcomponent(&path)) != NULL) {
-		if (q[0] == '\0' || (q[0] == '.' && q[1] == '\0'))
-			continue;
-		if (! first)
-			STPUTC('/', p);
-		first = 0;
-		component = q;
-		STPUTS(q, p);
-		if (equal(component, ".."))
-			continue;
-		STACKSTRNUL(p);
-		if (lstat(stackblock(), &statb) < 0) {
-			badstat = 1;
-			break;
-		}
-	}
-
-	INTOFF;
-	if ((p = findcwd(badstat ? NULL : dest)) == NULL || chdir(p) < 0) {
-		INTON;
-		return (-1);
-	}
-	updatepwd(p);
-	INTON;
-	return (0);
-}
-
-static int
-cdphysical(char *dest)
-{
-	char *p;
-	int rc = 0;
-
-	INTOFF;
-	if (chdir(dest) < 0) {
-		INTON;
-		return (-1);
-	}
-	p = findcwd(NULL);
-	if (p == NULL) {
-		warning("warning: failed to get name of current directory");
-		rc = 1;
-	}
-	updatepwd(p);
-	INTON;
-	return (rc);
-}
-
-/*
- * Get the next component of the path name pointed to by *path.
- * This routine overwrites *path and the string pointed to by it.
- */
-static char *
-getcomponent(char **path)
-{
-	char *p;
-	char *start;
-
-	if ((p = *path) == NULL)
-		return NULL;
-	start = *path;
-	while (*p != '/' && *p != '\0')
-		p++;
-	if (*p == '\0') {
-		*path = NULL;
-	} else {
-		*p++ = '\0';
-		*path = p;
-	}
-	return start;
-}
-
-
-static char *
-findcwd(char *dir)
-{
-	char *new;
-	char *p;
-	char *path;
-
-	/*
-	 * If our argument is NULL, we don't know the current directory
-	 * any more because we traversed a symbolic link or something
-	 * we couldn't stat().
-	 */
-	if (dir == NULL || curdir == NULL)
-		return getpwd2();
-	path = stsavestr(dir);
-	STARTSTACKSTR(new);
-	if (*dir != '/') {
-		STPUTS(curdir, new);
-		if (STTOPC(new) == '/')
-			STUNPUTC(new);
-	}
-	while ((p = getcomponent(&path)) != NULL) {
-		if (equal(p, "..")) {
-			while (new > stackblock() && (STUNPUTC(new), *new) != '/');
-		} else if (*p != '\0' && ! equal(p, ".")) {
-			STPUTC('/', new);
-			STPUTS(p, new);
-		}
-	}
-	if (new == stackblock())
-		STPUTC('/', new);
-	STACKSTRNUL(new);
-	return stackblock();
-}
-
-/*
- * Update curdir (the name of the current directory) in response to a
- * cd command.  We also call hashcd to let the routines in exec.c know
- * that the current directory has changed.
- */
-static void
-updatepwd(char *dir)
-{
-	char *prevdir;
-
-	hashcd();				/* update command hash table */
-
-	setvar("PWD", dir, VEXPORT);
-	setvar("OLDPWD", curdir, VEXPORT);
-	prevdir = curdir;
-	curdir = dir ? savestr(dir) : NULL;
-	ckfree(prevdir);
-}
-
-int
-pwdcmd(int argc __unused, char **argv __unused)
-{
-	char *p;
-	int ch, phys;
-
-	phys = Pflag;
-	while ((ch = nextopt("LP")) != '\0') {
-		switch (ch) {
-		case 'L':
-			phys = 0;
-			break;
-		case 'P':
-			phys = 1;
-			break;
-		}
-	}
-
-	if (*argptr != NULL)
-		error("too many arguments");
-
-	if (!phys && getpwd()) {
-		out1str(curdir);
-		out1c('\n');
-	} else {
-		if ((p = getpwd2()) == NULL)
-			error(".: %s", strerror(errno));
-		out1str(p);
-		out1c('\n');
-	}
-
-	return 0;
-}
-
-/*
- * Get the current directory and cache the result in curdir.
- */
-static char *
-getpwd(void)
-{
-	char *p;
-
-	if (curdir)
-		return curdir;
-
-	p = getpwd2();
-	if (p != NULL)
-		curdir = savestr(p);
-
-	return curdir;
-}
-
-#define MAXPWD 256
-
-/*
- * Return the current directory.
- */
-static char *
-getpwd2(void)
-{
-	char *pwd;
-	int i;
-
-	for (i = MAXPWD;; i *= 2) {
-		pwd = stalloc(i);
-		if (getcwd(pwd, i) != NULL)
-			return pwd;
-		stunalloc(pwd);
-		if (errno != ERANGE)
-			break;
-	}
-
-	return NULL;
-}
-
-/*
- * Initialize PWD in a new shell.
- * If the shell is interactive, we need to warn if this fails.
- */
-void
-pwd_init(int warn)
-{
-	char *pwd;
-	struct stat stdot, stpwd;
-
-	pwd = lookupvar("PWD");
-	if (pwd && *pwd == '/' && stat(".", &stdot) != -1 &&
-	    stat(pwd, &stpwd) != -1 &&
-	    stdot.st_dev == stpwd.st_dev &&
-	    stdot.st_ino == stpwd.st_ino) {
-		if (curdir)
-			ckfree(curdir);
-		curdir = savestr(pwd);
-	}
-	if (getpwd() == NULL && warn)
-		out2fmt_flush("sh: cannot determine working directory\n");
-	setvar("PWD", curdir, VEXPORT);
-}