File: [local] / src / usr.bin / sudo / Attic / goodpath.c (download)
Revision 1.5, Thu Jul 26 16:10:16 2007 UTC (16 years, 10 months ago) by millert
Branch: MAIN
CVS Tags: OPENBSD_4_4_BASE, OPENBSD_4_4, OPENBSD_4_3_BASE, OPENBSD_4_3, OPENBSD_4_2_BASE, OPENBSD_4_2 Changes since 1.4: +3 -4 lines
Update to sudo 1.6.9p1. Note that the environment handling in sudo
1.6.9 has changed relative to older versions. Sudo now starts
commands with a minimal environment containing the variables in the
env_keep and env_check lists. This behavior is configurable in the
sudoers file. Please see the "SECURITY NOTES" section in the sudo
manual.
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/*
* Copyright (c) 1996, 1998-2005 Todd C. Miller <Todd.Miller@courtesan.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Sponsored in part by the Defense Advanced Research Projects
* Agency (DARPA) and Air Force Research Laboratory, Air Force
* Materiel Command, USAF, under agreement number F39502-99-1-0512.
*/
#include <config.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <stdio.h>
#ifdef HAVE_STRING_H
# include <string.h>
#else
# ifdef HAVE_STRINGS_H
# include <strings.h>
# endif
#endif /* HAVE_STRING_H */
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include <errno.h>
#include "sudo.h"
#ifndef lint
__unused static const char rcsid[] = "$Sudo: goodpath.c,v 1.40.2.3 2007/06/12 01:28:41 millert Exp $";
#endif /* lint */
/*
* Verify that path is a normal file and executable by root.
*/
char *
sudo_goodpath(path, sbp)
const char *path;
struct stat *sbp;
{
struct stat sb;
/* Check for brain damage */
if (path == NULL || path[0] == '\0')
return(NULL);
if (stat(path, &sb))
return(NULL);
/* Make sure path describes an executable regular file. */
if (!S_ISREG(sb.st_mode) || !(sb.st_mode & 0000111)) {
errno = EACCES;
return(NULL);
}
if (sbp != NULL)
(void) memcpy(sbp, &sb, sizeof(struct stat));
return((char *)path);
}