freebsd-dev/usr.sbin/mtree/mtree.c
Giorgos Keramidas 1d916e2c71 mtree should use getcwd() instead of getwd(). getcwd() is safer,
because it includes checks for the length of the buffer it uses.

Reviewed by:	phk, cperciva
MFC after:	3 days
2007-11-02 15:11:53 +00:00

191 lines
4.4 KiB
C

/*-
* Copyright (c) 1989, 1990, 1993
* The 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.
*/
#if 0
#ifndef lint
static const char copyright[] =
"@(#) Copyright (c) 1989, 1990, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)mtree.c 8.1 (Berkeley) 6/6/93";
#endif /* not lint */
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/stat.h>
#include <err.h>
#include <errno.h>
#include <fts.h>
#include <stdio.h>
#include <unistd.h>
#include "mtree.h"
#include "extern.h"
int ftsoptions = FTS_PHYSICAL;
int cflag, dflag, eflag, iflag, nflag, qflag, rflag, sflag, uflag, Uflag, wflag;
u_int keys;
char fullpath[MAXPATHLEN];
static void usage(void);
int
main(int argc, char *argv[])
{
int ch;
char *dir, *p;
int status;
FILE *spec1, *spec2;
dir = NULL;
keys = KEYDEFAULT;
init_excludes();
spec1 = stdin;
spec2 = NULL;
while ((ch = getopt(argc, argv, "cdef:iK:k:LnPp:qrs:UuwxX:")) != -1)
switch((char)ch) {
case 'c':
cflag = 1;
break;
case 'd':
dflag = 1;
break;
case 'e':
eflag = 1;
break;
case 'f':
if (spec1 == stdin) {
spec1 = fopen(optarg, "r");
if (spec1 == NULL)
err(1, "%s", optarg);
} else if (spec2 == NULL) {
spec2 = fopen(optarg, "r");
if (spec2 == NULL)
err(1, "%s", optarg);
} else
usage();
break;
case 'i':
iflag = 1;
break;
case 'K':
while ((p = strsep(&optarg, " \t,")) != NULL)
if (*p != '\0')
keys |= parsekey(p, NULL);
break;
case 'k':
keys = F_TYPE;
while ((p = strsep(&optarg, " \t,")) != NULL)
if (*p != '\0')
keys |= parsekey(p, NULL);
break;
case 'L':
ftsoptions &= ~FTS_PHYSICAL;
ftsoptions |= FTS_LOGICAL;
break;
case 'n':
nflag = 1;
break;
case 'P':
ftsoptions &= ~FTS_LOGICAL;
ftsoptions |= FTS_PHYSICAL;
break;
case 'p':
dir = optarg;
break;
case 'q':
qflag = 1;
break;
case 'r':
rflag = 1;
break;
case 's':
sflag = 1;
crc_total = ~strtoul(optarg, &p, 0);
if (*p)
errx(1, "illegal seed value -- %s", optarg);
break;
case 'U':
Uflag = 1;
uflag = 1;
break;
case 'u':
uflag = 1;
break;
case 'w':
wflag = 1;
break;
case 'x':
ftsoptions |= FTS_XDEV;
break;
case 'X':
read_excludes_file(optarg);
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (argc)
usage();
if (dir && chdir(dir))
err(1, "%s", dir);
if ((cflag || sflag) && !getcwd(fullpath, sizeof(fullpath)))
errx(1, "%s", fullpath);
if (cflag) {
cwalk();
exit(0);
}
if (spec2 != NULL)
status = mtree_specspec(spec1, spec2);
else
status = mtree_verifyspec(spec1);
if (Uflag & (status == MISMATCHEXIT))
status = 0;
exit(status);
}
static void
usage(void)
{
(void)fprintf(stderr,
"usage: mtree [-LPUcdeinqruxw] [-f spec] [-f spec] [-K key] [-k key] [-p path] [-s seed]\n"
"\t[-X excludes]\n");
exit(1);
}