/*
* Copyright (c) 1989, 1993, 1994
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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
static char const copyright[] =
"@(#) Copyright (c) 1989, 1993, 1994\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)chmod.c 8.8 (Berkeley) 4/1/94";
#endif
static const char rcsid[] =
"$FreeBSD$";
#endif /* not lint */
#include <sys/types.h>
#include <sys/stat.h>
#include <err.h>
#include <errno.h>
#include <fts.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
int main __P((int, char *[]));
void usage __P((void));
int
main(argc, argv)
int argc;
char *argv[];
{
FTS *ftsp;
FTSENT *p;
mode_t *set;
long val;
int oct, omode;
int Hflag, Lflag, Pflag, Rflag, ch, fflag, fts_options, hflag, rval;
int vflag;
char *ep, *mode;
int newmode;
int (*change_mode) __P((const char *, mode_t));
set = NULL;
omode = 0;
Hflag = Lflag = Pflag = Rflag = fflag = hflag = vflag = 0;
while ((ch = getopt(argc, argv, "HLPRXfghorstuvwx")) != -1)
switch (ch) {
case 'H':
Hflag = 1;
Lflag = Pflag = 0;
break;
case 'L':
Lflag = 1;
Hflag = Pflag = 0;
break;
case 'P':
Pflag = 1;
Hflag = Lflag = 0;
break;
case 'R':
Rflag = 1;
break;
case 'f':
fflag = 1;
break;
case 'h':
/*
* In System V (and probably POSIX.2) the -h option
* causes chmod to change the mode of the symbolic
* link. 4.4BSD's symbolic links didn't have modes,
* so it was an undocumented noop. In FreeBSD 3.0,
* lchmod(2) is introduced and this option does real
* work.
*/
hflag = 1;
break;
/*
* XXX
* "-[rwx]" are valid mode commands. If they are the entire
* argument, getopt has moved past them, so decrement optind.
* Regardless, we're done argument processing.
*/
case 'g': case 'o': case 'r': case 's':
case 't': case 'u': case 'w': case 'X': case 'x':
if (argv[optind - 1][0] == '-' &&
argv[optind - 1][1] == ch &&
argv[optind - 1][2] == '\0')
--optind;
goto done;
case 'v':
vflag = 1;
break;
case '?':
default:
usage();
}
done: argv += optind;
argc -= optind;
if (argc < 2)
usage();
if (Rflag) {
fts_options = FTS_PHYSICAL;
if (hflag)
errx(1,
"the -R and -h options may not be specified together.");
if (Hflag)
fts_options |= FTS_COMFOLLOW;
if (Lflag) {
fts_options &= ~FTS_PHYSICAL;
fts_options |= FTS_LOGICAL;
}
} else
fts_options = hflag ? FTS_PHYSICAL : FTS_LOGICAL;
if (hflag)
change_mode = lchmod;
else
change_mode = chmod;
mode = *argv;
if (*mode >= '0' && *mode <= '7') {
errno = 0;
val = strtol(mode, &ep, 8);
if (val > INT_MAX || val < 0)
errno = ERANGE;
if (errno)
err(1, "invalid file mode: %s", mode);
if (*ep)
errx(1, "invalid file mode: %s", mode);
omode = val;
oct = 1;
} else {
if ((set = setmode(mode)) == NULL)
errx(1, "invalid file mode: %s", mode);
oct = 0;
}
if ((ftsp = fts_open(++argv, fts_options, 0)) == NULL)
err(1, NULL);
for (rval = 0; (p = fts_read(ftsp)) != NULL;) {
switch (p->fts_info) {
case FTS_D: /* Change it at FTS_DP. */
if (!Rflag)
fts_set(ftsp, p, FTS_SKIP);
continue;
case FTS_DNR: /* Warn, chmod, continue. */
warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
rval = 1;
break;
case FTS_ERR: /* Warn, continue. */
case FTS_NS:
warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
rval = 1;
continue;
case FTS_SL: /* Ignore. */
case FTS_SLNONE:
/*
* The only symlinks that end up here are ones that
* don't point to anything and ones that we found
* doing a physical walk.
*/
if (!hflag)
continue;
/* else */
/* FALLTHROUGH */
default:
break;
}
newmode = oct ? omode : getmode(set, p->fts_statp->st_mode);
if ((newmode & ALLPERMS) == (p->fts_statp->st_mode & ALLPERMS))
continue;
if ((*change_mode)(p->fts_accpath, newmode) && !fflag) {
warn("%s", p->fts_path);
rval = 1;
} else {
if (vflag)
(void)printf("%s\n", p->fts_accpath);
}
}
if (errno)
err(1, "fts_read");
free(set);
exit(rval);
}
void
usage()
{
(void)fprintf(stderr,
"usage: chmod [-fhv] [-R [-H | -L | -P]] mode file ...\n");
exit(1);
}
