chflags.c revision 102944 
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 * 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
35static const char copyright[] =
36"@(#) Copyright (c) 1992, 1993, 1994\n\
37	The Regents of the University of California.  All rights reserved.\n";
38#endif
39
40#if 0
41#ifndef lint
42static char sccsid[] = "@(#)chflags.c	8.5 (Berkeley) 4/1/94";
43#endif
44#endif
45
46#include <sys/cdefs.h>
47__FBSDID("$FreeBSD: head/bin/chflags/chflags.c 102944 2002-09-04 23:29:10Z dwmalone $");
48
49#include <sys/types.h>
50#include <sys/stat.h>
51
52#include <err.h>
53#include <errno.h>
54#include <fts.h>
55#include <stdio.h>
56#include <stdlib.h>
57#include <string.h>
58#include <unistd.h>
59
60void	usage(void);
61
62int
63main(int argc, char *argv[])
64{
65	FTS *ftsp;
66	FTSENT *p;
67	u_long clear, set;
68	long val;
69	int Hflag, Lflag, Pflag, Rflag, ch, fts_options, oct, rval;
70	char *flags, *ep;
71
72	Hflag = Lflag = Pflag = Rflag = 0;
73	while ((ch = getopt(argc, argv, "HLPR")) != -1)
74		switch (ch) {
75		case 'H':
76			Hflag = 1;
77			Lflag = Pflag = 0;
78			break;
79		case 'L':
80			Lflag = 1;
81			Hflag = Pflag = 0;
82			break;
83		case 'P':
84			Pflag = 1;
85			Hflag = Lflag = 0;
86			break;
87		case 'R':
88			Rflag = 1;
89			break;
90		case '?':
91		default:
92			usage();
93		}
94	argv += optind;
95	argc -= optind;
96
97	if (argc < 2)
98		usage();
99
100	if (Rflag) {
101		fts_options = FTS_PHYSICAL;
102		if (Hflag)
103			fts_options |= FTS_COMFOLLOW;
104		if (Lflag) {
105			fts_options &= ~FTS_PHYSICAL;
106			fts_options |= FTS_LOGICAL;
107		}
108	} else
109		fts_options = FTS_LOGICAL;
110
111	flags = *argv;
112	if (*flags >= '0' && *flags <= '7') {
113		errno = 0;
114		val = strtol(flags, &ep, 8);
115		if (val < 0)
116			errno = ERANGE;
117		if (errno)
118                        err(1, "invalid flags: %s", flags);
119                if (*ep)
120                        errx(1, "invalid flags: %s", flags);
121		set = val;
122                oct = 1;
123	} else {
124		if (strtofflags(&flags, &set, &clear))
125                        errx(1, "invalid flag: %s", flags);
126		clear = ~clear;
127		oct = 0;
128	}
129
130	if ((ftsp = fts_open(++argv, fts_options , 0)) == NULL)
131		err(1, NULL);
132
133	for (rval = 0; (p = fts_read(ftsp)) != NULL;) {
134		switch (p->fts_info) {
135		case FTS_D:
136			if (Rflag)		/* Change it at FTS_DP. */
137				continue;
138			fts_set(ftsp, p, FTS_SKIP);
139			break;
140		case FTS_DNR:			/* Warn, chflag, continue. */
141			warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
142			rval = 1;
143			break;
144		case FTS_ERR:			/* Warn, continue. */
145		case FTS_NS:
146			warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
147			rval = 1;
148			continue;
149		case FTS_SL:			/* Ignore. */
150		case FTS_SLNONE:
151			/*
152			 * The only symlinks that end up here are ones that
153			 * don't point to anything and ones that we found
154			 * doing a physical walk.
155			 */
156			continue;
157		default:
158			break;
159		}
160		if (oct) {
161			if (!chflags(p->fts_accpath, set))
162				continue;
163		} else {
164			p->fts_statp->st_flags |= set;
165			p->fts_statp->st_flags &= clear;
166			if (!chflags(p->fts_accpath, (u_long)p->fts_statp->st_flags))
167				continue;
168		}
169		warn("%s", p->fts_path);
170		rval = 1;
171	}
172	if (errno)
173		err(1, "fts_read");
174	exit(rval);
175}
176
177void
178usage(void)
179{
180	(void)fprintf(stderr,
181	    "usage: chflags [-R [-H | -L | -P]] flags file ...\n");
182	exit(1);
183}
184