[unix-history] / bin / chmod / chmod.c

/*
 * 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[] = "@(#)chmod.c	5.21 (Berkeley) 1/27/92";
#endif /* not lint */

#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <fts.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int retval;

void err __P((const char *, ...));
void error __P((char *));
void usage __P((void));

int
main(argc, argv)
	int argc;
	char *argv[];
{
	register FTS *fts;
	register FTSENT *p;
	register int oct, omode;
	struct stat sb;
	mode_t *set;
	int ch, fflag, rflag;
	char *ep, *mode;

	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':
			--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);
		oct = 1;
	} else {
		if (!(set = setmode(mode)))
			err("invalid file mode: %s", mode);
		oct = 0;
	}

	retval = 0;
	if (rflag) {
		if ((fts = fts_open(++argv,
		    oct ? FTS_NOSTAT|FTS_PHYSICAL : FTS_PHYSICAL, 0)) == NULL)
			err("%s", strerror(errno));
		while (p = fts_read(fts))
			switch(p->fts_info) {
			case FTS_D:
				break;
			case FTS_DNR:
			case FTS_ERR:
			case FTS_NS:
				err("%s: %s", p->fts_path, strerror(errno));
			default:
				if (chmod(p->fts_accpath, oct ? omode :
				    getmode(set, p->fts_statp->st_mode)) &&
				    !fflag)
					error(p->fts_path);
				break;
			}
		exit(retval);
	}
	if (oct) {
		while (*++argv)
			if (chmod(*argv, omode) && !fflag)
				error(*argv);
	} else
		while (*++argv)
			if ((lstat(*argv, &sb) ||
			    chmod(*argv, getmode(set, sb.st_mode))) && !fflag)
				error(*argv);
	exit(retval);
}

void
error(name)
	char *name;
{
	(void)fprintf(stderr, "chmod: %s: %s\n", name, strerror(errno));
	retval = 1;
}

void
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");
	exit(1);
	/* NOTREACHED */
}
Commit	Line	Data
15637ed4 RG	1	/*
	2	* Copyright (c) 1989 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*/
	33
	34	#ifndef lint
	35	char copyright[] =
	36	"@(#) Copyright (c) 1989 The Regents of the University of California.\n\
	37	All rights reserved.\n";
	38	#endif /* not lint */
	39
	40	#ifndef lint
4e97a0eb	41	static char sccsid[] = "@(#)chmod.c 5.21 (Berkeley) 1/27/92";
15637ed4 RG	42	#endif /* not lint */
	43
	44	#include <sys/types.h>
	45	#include <sys/stat.h>
4e97a0eb	46	#include <errno.h>
15637ed4	47	#include <fts.h>
4e97a0eb	48	#include <unistd.h>
15637ed4	49	#include <stdio.h>
4e97a0eb	50	#include <stdlib.h>
15637ed4 RG	51	#include <string.h>
15637ed4 RG	52
15637ed4 RG	53	int retval;
15637ed4 RG	54
4e97a0eb NW	55	void err __P((const char *, ...));
	56	void error __P((char *));
	57	void usage __P((void));
	58
	59	int
15637ed4 RG	60	main(argc, argv)
15637ed4 RG	61	int argc;
4e97a0eb	62	char *argv[];
15637ed4	63	{
15637ed4 RG	64	register FTS *fts;
	65	register FTSENT *p;
	66	register int oct, omode;
15637ed4	67	struct stat sb;
4e97a0eb	68	mode_t *set;
15637ed4	69	int ch, fflag, rflag;
4e97a0eb	70	char ep, mode;
15637ed4 RG	71
	72	fflag = rflag = 0;
	73	while ((ch = getopt(argc, argv, "Rfrwx")) != EOF)
	74	switch((char)ch) {
	75	case 'R':
	76	rflag = 1;
	77	break;
	78	case 'f': /* no longer documented */
	79	fflag = 1;
	80	break;
	81	case 'r': /* "-[rwx]" are valid file modes */
	82	case 'w':
	83	case 'x':
	84	--optind;
	85	goto done;
	86	case '?':
	87	default:
	88	usage();
	89	}
	90	done: argv += optind;
	91	argc -= optind;
	92
	93	if (argc < 2)
	94	usage();
	95
	96	mode = *argv;
	97	if (mode >= '0' && mode <= '7') {
4e97a0eb NW	98	omode = (int)strtol(mode, &ep, 8);
	99	if (omode < 0 \|\| *ep)
	100	err("invalid file mode: %s", mode);
15637ed4 RG	101	oct = 1;
15637ed4 RG	102	} else {
4e97a0eb NW	103	if (!(set = setmode(mode)))
4e97a0eb NW	104	err("invalid file mode: %s", mode);
15637ed4 RG	105	oct = 0;
	106	}
	107
	108	retval = 0;
	109	if (rflag) {
4e97a0eb NW	110	if ((fts = fts_open(++argv,
	111	oct ? FTS_NOSTAT\|FTS_PHYSICAL : FTS_PHYSICAL, 0)) == NULL)
	112	err("%s", strerror(errno));
15637ed4 RG	113	while (p = fts_read(fts))
	114	switch(p->fts_info) {
	115	case FTS_D:
	116	break;
	117	case FTS_DNR:
	118	case FTS_ERR:
	119	case FTS_NS:
4e97a0eb	120	err("%s: %s", p->fts_path, strerror(errno));
15637ed4 RG	121	default:
15637ed4 RG	122	if (chmod(p->fts_accpath, oct ? omode :
4e97a0eb	123	getmode(set, p->fts_statp->st_mode)) &&
15637ed4 RG	124	!fflag)
	125	error(p->fts_path);
	126	break;
	127	}
	128	exit(retval);
	129	}
	130	if (oct) {
	131	while (*++argv)
	132	if (chmod(*argv, omode) && !fflag)
	133	error(*argv);
	134	} else
	135	while (*++argv)
	136	if ((lstat(*argv, &sb) \|\|
	137	chmod(*argv, getmode(set, sb.st_mode))) && !fflag)
	138	error(*argv);
	139	exit(retval);
	140	}
	141
4e97a0eb	142	void
15637ed4 RG	143	error(name)
	144	char *name;
	145	{
4e97a0eb	146	(void)fprintf(stderr, "chmod: %s: %s\n", name, strerror(errno));
15637ed4 RG	147	retval = 1;
	148	}
	149
4e97a0eb	150	void
15637ed4 RG	151	usage()
15637ed4 RG	152	{
4e97a0eb NW	153	(void)fprintf(stderr, "usage: chmod [-R] mode file ...\n");
	154	exit(1);
	155	}
	156
	157	#if __STDC__
	158	#include <stdarg.h>
	159	#else
	160	#include <varargs.h>
	161	#endif
	162
	163	void
	164	#if __STDC__
	165	err(const char *fmt, ...)
	166	#else
	167	err(fmt, va_alist)
	168	char *fmt;
	169	va_dcl
	170	#endif
	171	{
	172	va_list ap;
	173	#if __STDC__
	174	va_start(ap, fmt);
	175	#else
	176	va_start(ap);
	177	#endif
	178	(void)fprintf(stderr, "chmod: ");
	179	(void)vfprintf(stderr, fmt, ap);
	180	va_end(ap);
	181	(void)fprintf(stderr, "\n");
15637ed4	182	exit(1);
4e97a0eb	183	/* NOTREACHED */
15637ed4	184	}