1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1992, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #if 0
33 #ifndef lint
34 static const char copyright[] =
35 "@(#) Copyright (c) 1992, 1993, 1994\n\
36 The Regents of the University of California. All rights reserved.\n";
37 #endif
38
39 #ifndef lint
40 static char sccsid[] = "@(#)chflags.c 8.5 (Berkeley) 4/1/94";
41 #endif
42 #endif
43
44 #include <sys/cdefs.h>
45 #include <sys/types.h>
46 #include <sys/stat.h>
47
48 #include <err.h>
49 #include <errno.h>
50 #include <fcntl.h>
51 #include <fts.h>
52 #include <signal.h>
53 #include <stdio.h>
54 #include <stdlib.h>
55 #include <string.h>
56 #include <unistd.h>
57
58 static volatile sig_atomic_t siginfo;
59
60 static void usage(void) __dead2;
61
62 static void
siginfo_handler(int sig __unused)63 siginfo_handler(int sig __unused)
64 {
65
66 siginfo = 1;
67 }
68
69 int
main(int argc,char * argv[])70 main(int argc, char *argv[])
71 {
72 FTS *ftsp;
73 FTSENT *p;
74 u_long clear, newflags, set;
75 long val;
76 int Hflag, Lflag, Rflag, fflag, hflag, vflag, xflag;
77 int ch, e, fts_options, oct, rval;
78 char *flags, *ep;
79
80 Hflag = Lflag = Rflag = fflag = hflag = vflag = xflag = 0;
81 while ((ch = getopt(argc, argv, "HLPRfhvx")) != -1)
82 switch (ch) {
83 case 'H':
84 Hflag = 1;
85 Lflag = 0;
86 break;
87 case 'L':
88 Lflag = 1;
89 Hflag = 0;
90 break;
91 case 'P':
92 Hflag = Lflag = 0;
93 break;
94 case 'R':
95 Rflag = 1;
96 break;
97 case 'f':
98 fflag = 1;
99 break;
100 case 'h':
101 hflag = 1;
102 break;
103 case 'v':
104 vflag++;
105 break;
106 case 'x':
107 xflag = 1;
108 break;
109 case '?':
110 default:
111 usage();
112 }
113 argv += optind;
114 argc -= optind;
115
116 if (argc < 2)
117 usage();
118
119 (void)signal(SIGINFO, siginfo_handler);
120
121 if (Rflag) {
122 if (hflag)
123 errx(1, "the -R and -h options may not be "
124 "specified together.");
125 if (Lflag) {
126 fts_options = FTS_LOGICAL;
127 } else {
128 fts_options = FTS_PHYSICAL;
129
130 if (Hflag) {
131 fts_options |= FTS_COMFOLLOW;
132 }
133 }
134 } else if (hflag) {
135 fts_options = FTS_PHYSICAL;
136 } else {
137 fts_options = FTS_LOGICAL;
138 }
139 if (xflag)
140 fts_options |= FTS_XDEV;
141
142 flags = *argv;
143 if (*flags >= '0' && *flags <= '7') {
144 errno = 0;
145 val = strtol(flags, &ep, 8);
146 if (val < 0)
147 errno = ERANGE;
148 if (errno)
149 err(1, "invalid flags: %s", flags);
150 if (*ep)
151 errx(1, "invalid flags: %s", flags);
152 set = val;
153 oct = 1;
154 } else {
155 if (strtofflags(&flags, &set, &clear))
156 errx(1, "invalid flag: %s", flags);
157 clear = ~clear;
158 oct = 0;
159 }
160
161 if ((ftsp = fts_open(++argv, fts_options , 0)) == NULL)
162 err(1, NULL);
163
164 for (rval = 0; errno = 0, (p = fts_read(ftsp)) != NULL;) {
165 int atflag;
166
167 if ((fts_options & FTS_LOGICAL) ||
168 ((fts_options & FTS_COMFOLLOW) &&
169 p->fts_level == FTS_ROOTLEVEL))
170 atflag = 0;
171 else
172 atflag = AT_SYMLINK_NOFOLLOW;
173
174 switch (p->fts_info) {
175 case FTS_D: /* Change it at FTS_DP if we're recursive. */
176 if (!Rflag)
177 fts_set(ftsp, p, FTS_SKIP);
178 continue;
179 case FTS_DNR: /* Warn, chflags. */
180 warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
181 rval = 1;
182 break;
183 case FTS_ERR: /* Warn, continue. */
184 case FTS_NS:
185 warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
186 rval = 1;
187 continue;
188 default:
189 break;
190 }
191 if (oct)
192 newflags = set;
193 else
194 newflags = (p->fts_statp->st_flags | set) & clear;
195 if (newflags == p->fts_statp->st_flags)
196 continue;
197 if (chflagsat(AT_FDCWD, p->fts_accpath, newflags,
198 atflag) == -1) {
199 e = errno;
200 if (!fflag) {
201 warnc(e, "%s", p->fts_path);
202 rval = 1;
203 }
204 if (siginfo) {
205 (void)printf("%s: %s\n", p->fts_path,
206 strerror(e));
207 siginfo = 0;
208 }
209 } else if (vflag || siginfo) {
210 (void)printf("%s", p->fts_path);
211 if (vflag > 1 || siginfo)
212 (void)printf(": 0%lo -> 0%lo",
213 (u_long)p->fts_statp->st_flags,
214 newflags);
215 (void)printf("\n");
216 siginfo = 0;
217 }
218 }
219 if (errno)
220 err(1, "fts_read");
221 exit(rval);
222 }
223
224 static void
usage(void)225 usage(void)
226 {
227 (void)fprintf(stderr,
228 "usage: chflags [-fhvx] [-R [-H | -L | -P]] flags file ...\n");
229 exit(1);
230 }
231