chflags.c revision 139969 
1/*-
2 * Copyright (c) 1992, 1993, 1994
3 *	The Regents of the University of California.  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 * 4. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#if 0
31#ifndef lint
32static const char copyright[] =
33"@(#) Copyright (c) 1992, 1993, 1994\n\
34	The Regents of the University of California.  All rights reserved.\n";
35#endif
36
37#ifndef lint
38static char sccsid[] = "@(#)chflags.c	8.5 (Berkeley) 4/1/94";
39#endif
40#endif
41
42#include <sys/cdefs.h>
43__FBSDID("$FreeBSD: head/bin/chflags/chflags.c 139969 2005-01-10 08:39:26Z imp $");
44
45#include <sys/types.h>
46#include <sys/stat.h>
47
48#include <err.h>
49#include <errno.h>
50#include <fts.h>
51#include <stdio.h>
52#include <stdlib.h>
53#include <string.h>
54#include <unistd.h>
55
56void	usage(void);
57
58int
59main(int argc, char *argv[])
60{
61	FTS *ftsp;
62	FTSENT *p;
63	u_long clear, set;
64	long val;
65	int Hflag, Lflag, Rflag, ch, fts_options, oct, rval;
66	char *flags, *ep;
67
68	Hflag = Lflag = Rflag = 0;
69	while ((ch = getopt(argc, argv, "HLPR")) != -1)
70		switch (ch) {
71		case 'H':
72			Hflag = 1;
73			Lflag = 0;
74			break;
75		case 'L':
76			Lflag = 1;
77			Hflag = 0;
78			break;
79		case 'P':
80			Hflag = Lflag = 0;
81			break;
82		case 'R':
83			Rflag = 1;
84			break;
85		case '?':
86		default:
87			usage();
88		}
89	argv += optind;
90	argc -= optind;
91
92	if (argc < 2)
93		usage();
94
95	if (Rflag) {
96		fts_options = FTS_PHYSICAL;
97		if (Hflag)
98			fts_options |= FTS_COMFOLLOW;
99		if (Lflag) {
100			fts_options &= ~FTS_PHYSICAL;
101			fts_options |= FTS_LOGICAL;
102		}
103	} else
104		fts_options = FTS_LOGICAL;
105
106	flags = *argv;
107	if (*flags >= '0' && *flags <= '7') {
108		errno = 0;
109		val = strtol(flags, &ep, 8);
110		if (val < 0)
111			errno = ERANGE;
112		if (errno)
113                        err(1, "invalid flags: %s", flags);
114                if (*ep)
115                        errx(1, "invalid flags: %s", flags);
116		set = val;
117                oct = 1;
118	} else {
119		if (strtofflags(&flags, &set, &clear))
120                        errx(1, "invalid flag: %s", flags);
121		clear = ~clear;
122		oct = 0;
123	}
124
125	if ((ftsp = fts_open(++argv, fts_options , 0)) == NULL)
126		err(1, NULL);
127
128	for (rval = 0; (p = fts_read(ftsp)) != NULL;) {
129		switch (p->fts_info) {
130		case FTS_D:	/* Change it at FTS_DP if we're recursive. */
131			if (!Rflag)
132				fts_set(ftsp, p, FTS_SKIP);
133			continue;
134		case FTS_DNR:			/* Warn, chflag, continue. */
135			warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
136			rval = 1;
137			break;
138		case FTS_ERR:			/* Warn, continue. */
139		case FTS_NS:
140			warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
141			rval = 1;
142			continue;
143		case FTS_SL:			/* Ignore. */
144		case FTS_SLNONE:
145			/*
146			 * The only symlinks that end up here are ones that
147			 * don't point to anything and ones that we found
148			 * doing a physical walk.
149			 */
150			continue;
151		default:
152			break;
153		}
154		if (oct) {
155			if (!chflags(p->fts_accpath, set))
156				continue;
157		} else {
158			p->fts_statp->st_flags |= set;
159			p->fts_statp->st_flags &= clear;
160			if (!chflags(p->fts_accpath, (u_long)p->fts_statp->st_flags))
161				continue;
162		}
163		warn("%s", p->fts_path);
164		rval = 1;
165	}
166	if (errno)
167		err(1, "fts_read");
168	exit(rval);
169}
170
171void
172usage(void)
173{
174	(void)fprintf(stderr,
175	    "usage: chflags [-R [-H | -L | -P]] flags file ...\n");
176	exit(1);
177}
178