NetBSD/bin/chmod/chmod.c

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/*
* Copyright (c) 1989 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
char copyright[] =
"@(#) Copyright (c) 1989 The Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */
#ifndef lint
/*static char sccsid[] = "from: @(#)chmod.c 5.21 (Berkeley) 1/27/92";*/
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static char rcsid[] = "$Id: chmod.c,v 1.8 1994/02/11 02:57:24 cgd Exp $";
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#endif /* not lint */
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
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#include <fts.h>
#include <unistd.h>
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#include <stdio.h>
#include <stdlib.h>
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#include <string.h>
int retval;
void err __P((const char *, ...));
void error __P((char *));
void usage __P((void));
int
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main(argc, argv)
int argc;
char *argv[];
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{
register FTS *fts;
register FTSENT *p;
register int oct, omode;
struct stat sb;
mode_t *set;
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int ch, fflag, rflag;
char *ep, *mode;
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fflag = rflag = 0;
while ((ch = getopt(argc, argv, "Rfrwx")) != EOF)
switch((char)ch) {
case 'R':
rflag = 1;
break;
case 'f': /* no longer documented */
fflag = 1;
break;
case 'r': /* "-[rwx]" are valid file modes */
case 'w':
case 'x':
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case 'u': /* as are -[ugo] */
case 'g':
case 'o':
case 'X': /* -[Xts] valid but ignored later */
case 't':
case 's':
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--optind;
goto done;
case '?':
default:
usage();
}
done: argv += optind;
argc -= optind;
if (argc < 2)
usage();
mode = *argv;
if (*mode >= '0' && *mode <= '7') {
omode = (int)strtol(mode, &ep, 8);
if (omode < 0 || *ep)
err("invalid file mode: %s", mode);
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oct = 1;
} else {
if (!(set = setmode(mode)))
err("invalid file mode: %s", mode);
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oct = 0;
}
retval = 0;
if (rflag) {
if ((fts = fts_open(++argv, FTS_PHYSICAL, 0)) == NULL)
err("%s", strerror(errno));
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while (p = fts_read(fts))
switch(p->fts_info) {
case FTS_D:
case FTS_SL:
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break;
case FTS_DNR:
case FTS_ERR:
case FTS_NS:
err("%s: %s", p->fts_path, strerror(errno));
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default:
if (chmod(p->fts_accpath, oct ? omode :
getmode(set, p->fts_statp->st_mode)) &&
!fflag)
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error(p->fts_path);
break;
}
exit(retval);
}
while (*++argv) {
if (lstat(*argv, &sb) < 0) {
if (!fflag)
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error(*argv);
continue;
}
if (S_ISLNK(sb.st_mode))
continue;
if (chmod(*argv, oct ? omode : getmode(set, sb.st_mode)) &&
!fflag)
error(*argv);
}
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exit(retval);
}
void
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error(name)
char *name;
{
(void)fprintf(stderr, "chmod: %s: %s\n", name, strerror(errno));
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retval = 1;
}
void
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usage()
{
(void)fprintf(stderr, "usage: chmod [-R] mode file ...\n");
exit(1);
}
#if __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif
void
#if __STDC__
err(const char *fmt, ...)
#else
err(fmt, va_alist)
char *fmt;
va_dcl
#endif
{
va_list ap;
#if __STDC__
va_start(ap, fmt);
#else
va_start(ap);
#endif
(void)fprintf(stderr, "chmod: ");
(void)vfprintf(stderr, fmt, ap);
va_end(ap);
(void)fprintf(stderr, "\n");
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exit(1);
/* NOTREACHED */
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}