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30d90946d1
Reviewed by: freebsd-standards PR: 40709 Submitted by: Edward Brocklesby <nighthawk@unrealircd.com>, johan
244 lines
6.2 KiB
C
244 lines
6.2 KiB
C
/*
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* Copyright (c) 1989, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char const copyright[] =
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"@(#) Copyright (c) 1989, 1993, 1994\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)chmod.c 8.8 (Berkeley) 4/1/94";
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#endif
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#endif /* not lint */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <err.h>
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#include <errno.h>
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#include <fts.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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int main(int, char *[]);
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void usage(void);
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int
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main(int argc, char *argv[])
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{
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FTS *ftsp;
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FTSENT *p;
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mode_t *set;
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long val;
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int oct;
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int Hflag, Lflag, Rflag, ch, fflag, fts_options, hflag, rval;
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int vflag;
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char *ep, *mode;
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mode_t newmode, omode;
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int (*change_mode)(const char *, mode_t);
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set = NULL;
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omode = 0;
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Hflag = Lflag = Rflag = fflag = hflag = vflag = 0;
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while ((ch = getopt(argc, argv, "HLPRXfghorstuvwx")) != -1)
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switch (ch) {
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case 'H':
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Hflag = 1;
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Lflag = 0;
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break;
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case 'L':
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Lflag = 1;
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Hflag = 0;
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break;
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case 'P':
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Hflag = Lflag = 0;
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break;
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case 'R':
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Rflag = 1;
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break;
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case 'f':
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fflag = 1;
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break;
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case 'h':
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/*
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* In System V (and probably POSIX.2) the -h option
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* causes chmod to change the mode of the symbolic
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* link. 4.4BSD's symbolic links didn't have modes,
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* so it was an undocumented noop. In FreeBSD 3.0,
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* lchmod(2) is introduced and this option does real
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* work.
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*/
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hflag = 1;
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break;
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/*
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* XXX
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* "-[rwx]" are valid mode commands. If they are the entire
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* argument, getopt has moved past them, so decrement optind.
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* Regardless, we're done argument processing.
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*/
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case 'g': case 'o': case 'r': case 's':
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case 't': case 'u': case 'w': case 'X': case 'x':
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if (argv[optind - 1][0] == '-' &&
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argv[optind - 1][1] == ch &&
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argv[optind - 1][2] == '\0')
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--optind;
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goto done;
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case 'v':
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vflag++;
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break;
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case '?':
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default:
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usage();
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}
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done: argv += optind;
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argc -= optind;
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if (argc < 2)
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usage();
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if (Rflag) {
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fts_options = FTS_PHYSICAL;
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if (hflag)
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errx(1,
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"the -R and -h options may not be specified together.");
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if (Hflag)
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fts_options |= FTS_COMFOLLOW;
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if (Lflag) {
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fts_options &= ~FTS_PHYSICAL;
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fts_options |= FTS_LOGICAL;
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}
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} else
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fts_options = hflag ? FTS_PHYSICAL : FTS_LOGICAL;
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if (hflag)
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change_mode = lchmod;
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else
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change_mode = chmod;
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mode = *argv;
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if (*mode >= '0' && *mode <= '7') {
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errno = 0;
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val = strtol(mode, &ep, 8);
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if (val > USHRT_MAX || val < 0)
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errno = ERANGE;
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if (errno)
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err(1, "invalid file mode: %s", mode);
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if (*ep)
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errx(1, "invalid file mode: %s", mode);
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omode = (mode_t)val;
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oct = 1;
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} else {
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if ((set = setmode(mode)) == NULL)
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errx(1, "invalid file mode: %s", mode);
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oct = 0;
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}
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if ((ftsp = fts_open(++argv, fts_options, 0)) == NULL)
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err(1, "fts_open");
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for (rval = 0; (p = fts_read(ftsp)) != NULL;) {
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switch (p->fts_info) {
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case FTS_D: /* Change it at FTS_DP. */
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if (!Rflag)
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fts_set(ftsp, p, FTS_SKIP);
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continue;
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case FTS_DNR: /* Warn, chmod, continue. */
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warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
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rval = 1;
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break;
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case FTS_ERR: /* Warn, continue. */
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case FTS_NS:
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warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
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rval = 1;
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continue;
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case FTS_SL: /* Ignore. */
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case FTS_SLNONE:
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/*
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* The only symlinks that end up here are ones that
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* don't point to anything and ones that we found
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* doing a physical walk.
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*/
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if (!hflag)
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continue;
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/* else */
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/* FALLTHROUGH */
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default:
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break;
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}
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newmode = oct ? omode : getmode(set, p->fts_statp->st_mode);
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if ((newmode & ALLPERMS) == (p->fts_statp->st_mode & ALLPERMS))
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continue;
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if ((*change_mode)(p->fts_accpath, newmode) && !fflag) {
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warn("%s", p->fts_path);
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rval = 1;
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} else {
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if (vflag) {
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(void)printf("%s", p->fts_accpath);
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if (vflag > 1) {
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char m1[12], m2[12];
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strmode(p->fts_statp->st_mode, m1);
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strmode((p->fts_statp->st_mode &
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S_IFMT) | newmode, m2);
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(void)printf(": 0%o [%s] -> 0%o [%s]",
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p->fts_statp->st_mode, m1,
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(p->fts_statp->st_mode & S_IFMT) |
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newmode, m2);
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}
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(void)printf("\n");
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}
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}
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}
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if (errno)
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err(1, "fts_read");
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free(set);
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exit(rval);
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}
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void
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usage(void)
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{
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(void)fprintf(stderr,
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"usage: chmod [-fhv] [-R [-H | -L | -P]] mode file ...\n");
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exit(1);
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}
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