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usr / src / crypto / openssh / openbsd-compat /

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📄 Makefile.in(1.77 KB)
📄 arc4random.c(7.06 KB)
📄 base64.c(10.25 KB)
📄 base64.h(2.69 KB)
📄 basename.c(1.78 KB)
📄 bcrypt_pbkdf.c(5.38 KB)
📄 bindresvport.c(3.24 KB)
📄 blf.h(3.49 KB)
📄 blowfish.c(23.11 KB)
📄 bsd-asprintf.c(2.31 KB)
📄 bsd-closefrom.c(2.84 KB)
📄 bsd-cygwin_util.c(3.15 KB)
📄 bsd-cygwin_util.h(2.34 KB)
📄 bsd-err.c(2.15 KB)
📄 bsd-flock.c(2.23 KB)
📄 bsd-getline.c(2.9 KB)
📄 bsd-getpagesize.c(463 B)
📄 bsd-getpeereid.c(1.68 KB)
📄 bsd-malloc.c(1.4 KB)
📄 bsd-misc.c(5.88 KB)
📄 bsd-misc.h(3.61 KB)
📄 bsd-nextstep.c(2.5 KB)
📄 bsd-nextstep.h(2.22 KB)
📄 bsd-openpty.c(4.92 KB)
📄 bsd-poll.c(2.91 KB)
📄 bsd-poll.h(2.06 KB)
📄 bsd-setres_id.c(2.34 KB)
📄 bsd-setres_id.h(930 B)
📄 bsd-signal.c(1.55 KB)
📄 bsd-signal.h(1.15 KB)
📄 bsd-snprintf.c(20.58 KB)
📄 bsd-statvfs.c(2.09 KB)
📄 bsd-statvfs.h(2.24 KB)
📄 bsd-waitpid.c(1.77 KB)
📄 bsd-waitpid.h(2.02 KB)
📄 chacha_private.h(5.26 KB)
📄 charclass.h(702 B)
📄 daemon.c(2.32 KB)
📄 dirname.c(1.87 KB)
📄 explicit_bzero.c(1.09 KB)
📄 fake-rfc2553.c(6.15 KB)
📄 fake-rfc2553.h(5.2 KB)
📄 fmt_scaled.c(7.69 KB)
📄 freezero.c(1.01 KB)
📄 getcwd.c(5.95 KB)
📄 getgrouplist.c(2.7 KB)
📄 getopt.h(2.71 KB)
📄 getopt_long.c(14.46 KB)
📄 getrrsetbyname-ldns.c(7.81 KB)
📄 getrrsetbyname.c(13.56 KB)
📄 getrrsetbyname.h(3.62 KB)
📄 glob.c(25.53 KB)
📄 glob.h(4.54 KB)
📄 inet_aton.c(5.23 KB)
📄 inet_ntoa.c(2.21 KB)
📄 inet_ntop.c(5.42 KB)
📄 kludge-fd_set.c(882 B)
📄 libressl-api-compat.c(16.19 KB)
📄 md5.c(7.83 KB)
📄 md5.h(1.85 KB)
📄 mktemp.c(3.14 KB)
📄 openbsd-compat.h(8.68 KB)
📄 openssl-compat.c(2.43 KB)
📄 openssl-compat.h(7.22 KB)
📄 port-aix.c(12.61 KB)
📄 port-aix.h(4.22 KB)
📄 port-irix.c(2.94 KB)
📄 port-irix.h(1.65 KB)
📄 port-linux.c(7.66 KB)
📄 port-linux.h(1.18 KB)
📄 port-net.c(8.33 KB)
📄 port-net.h(1.58 KB)
📄 port-solaris.c(9.56 KB)
📄 port-solaris.h(1.27 KB)
📄 port-uw.c(4.16 KB)
📄 port-uw.h(1.37 KB)
📄 pwcache.c(3.22 KB)
📄 readpassphrase.c(5.79 KB)
📄 readpassphrase.h(1.75 KB)
📄 reallocarray.c(1.49 KB)
📄 realpath.c(6.08 KB)
📄 recallocarray.c(2.4 KB)
📁 regress
📄 rmd160.c(11.72 KB)
📄 rmd160.h(2.81 KB)
📄 rresvport.c(2.97 KB)
📄 setenv.c(5.76 KB)
📄 setproctitle.c(4.55 KB)
📄 sha1.c(5.18 KB)
📄 sha1.h(2.23 KB)
📄 sha2.c(24.88 KB)
📄 sha2.h(5.66 KB)
📄 sigact.c(3.82 KB)
📄 sigact.h(3.66 KB)
📄 strcasestr.c(2.35 KB)
📄 strlcat.c(1.76 KB)
📄 strlcpy.c(1.64 KB)
📄 strmode.c(3.38 KB)
📄 strndup.c(1.27 KB)
📄 strnlen.c(1.18 KB)
📄 strptime.c(9.28 KB)
📄 strsep.c(2.59 KB)
📄 strtoll.c(4.29 KB)
📄 strtonum.c(1.85 KB)
📄 strtoul.c(3.07 KB)
📄 strtoull.c(3.13 KB)
📄 sys-queue.h(21.04 KB)
📄 sys-tree.h(24.68 KB)
📄 timingsafe_bcmp.c(1.17 KB)
📄 vis.c(5.97 KB)
📄 vis.h(3.57 KB)
📄 xcrypt.c(4.26 KB)

Editing: setenv.c

/*	$OpenBSD: setenv.c,v 1.13 2010/08/23 22:31:50 millert Exp $ */
/*
 * Copyright (c) 1987 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

/* OPENBSD ORIGINAL: lib/libc/stdlib/setenv.c */

#include "includes.h"

#if !defined(HAVE_SETENV) || !defined(HAVE_UNSETENV)

#include <errno.h>
#include <stdlib.h>
#include <string.h>

extern char **environ;
static char **lastenv;				/* last value of environ */

/* OpenSSH Portable: __findenv is from getenv.c rev 1.8, made static */
/*
 * __findenv --
 *	Returns pointer to value associated with name, if any, else NULL.
 *	Starts searching within the environmental array at offset.
 *	Sets offset to be the offset of the name/value combination in the
 *	environmental array, for use by putenv(3), setenv(3) and unsetenv(3).
 *	Explicitly removes '=' in argument name.
 *
 *	This routine *should* be a static; don't use it.
 */
static char *
__findenv(const char *name, int len, int *offset)
{
	extern char **environ;
	int i;
	const char *np;
	char **p, *cp;

if (name == NULL || environ == NULL)
		return (NULL);
	for (p = environ + *offset; (cp = *p) != NULL; ++p) {
		for (np = name, i = len; i && *cp; i--)
			if (*cp++ != *np++)
				break;
		if (i == 0 && *cp++ == '=') {
			*offset = p - environ;
			return (cp);
		}
	}
	return (NULL);
}

#if 0 /* nothing uses putenv */
/*
 * putenv --
 *	Add a name=value string directly to the environmental, replacing
 *	any current value.
 */
int
putenv(char *str)
{
	char **P, *cp;
	size_t cnt;
	int offset = 0;

for (cp = str; *cp && *cp != '='; ++cp)
		;
	if (*cp != '=') {
		errno = EINVAL;
		return (-1);			/* missing `=' in string */
	}

if (__findenv(str, (int)(cp - str), &offset) != NULL) {
		environ[offset++] = str;
		/* could be set multiple times */
		while (__findenv(str, (int)(cp - str), &offset)) {
			for (P = &environ[offset];; ++P)
				if (!(*P = *(P + 1)))
					break;
		}
		return (0);
	}

/* create new slot for string */
	for (P = environ; *P != NULL; P++)
		;
	cnt = P - environ;
	P = (char **)realloc(lastenv, sizeof(char *) * (cnt + 2));
	if (!P)
		return (-1);
	if (lastenv != environ)
		memcpy(P, environ, cnt * sizeof(char *));
	lastenv = environ = P;
	environ[cnt] = str;
	environ[cnt + 1] = NULL;
	return (0);
}

#endif

#ifndef HAVE_SETENV
/*
 * setenv --
 *	Set the value of the environmental variable "name" to be
 *	"value".  If rewrite is set, replace any current value.
 */
int
setenv(const char *name, const char *value, int rewrite)
{
	char *C, **P;
	const char *np;
	int l_value, offset = 0;

for (np = name; *np && *np != '='; ++np)
		;
#ifdef notyet
	if (*np) {
		errno = EINVAL;
		return (-1);			/* has `=' in name */
	}
#endif

l_value = strlen(value);
	if ((C = __findenv(name, (int)(np - name), &offset)) != NULL) {
		int tmpoff = offset + 1;
		if (!rewrite)
			return (0);
#if 0 /* XXX - existing entry may not be writable */
		if (strlen(C) >= l_value) {	/* old larger; copy over */
			while ((*C++ = *value++))
				;
			return (0);
		}
#endif
		/* could be set multiple times */
		while (__findenv(name, (int)(np - name), &tmpoff)) {
			for (P = &environ[tmpoff];; ++P)
				if (!(*P = *(P + 1)))
					break;
		}
	} else {					/* create new slot */
		size_t cnt;

for (P = environ; *P != NULL; P++)
			;
		cnt = P - environ;
		P = (char **)realloc(lastenv, sizeof(char *) * (cnt + 2));
		if (!P)
			return (-1);
		if (lastenv != environ)
			memcpy(P, environ, cnt * sizeof(char *));
		lastenv = environ = P;
		offset = cnt;
		environ[cnt + 1] = NULL;
	}
	if (!(environ[offset] =			/* name + `=' + value */
	    malloc((size_t)((int)(np - name) + l_value + 2))))
		return (-1);
	for (C = environ[offset]; (*C = *name++) && *C != '='; ++C)
		;
	for (*C++ = '='; (*C++ = *value++); )
		;
	return (0);
}

#endif /* HAVE_SETENV */

#ifndef HAVE_UNSETENV
/*
 * unsetenv(name) --
 *	Delete environmental variable "name".
 */
int
unsetenv(const char *name)
{
	char **P;
	const char *np;
	int offset = 0;

if (!name || !*name) {
		errno = EINVAL;
		return (-1);
	}
	for (np = name; *np && *np != '='; ++np)
		;
	if (*np) {
		errno = EINVAL;
		return (-1);			/* has `=' in name */
	}

/* could be set multiple times */
	while (__findenv(name, (int)(np - name), &offset)) {
		for (P = &environ[offset];; ++P)
			if (!(*P = *(P + 1)))
				break;
	}
	return (0);
}
#endif /* HAVE_UNSETENV */

#endif /* !defined(HAVE_SETENV) || !defined(HAVE_UNSETENV) */

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Editing: setenv.c

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