2 * Copyright (c) 1988, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
35 static const char copyright[] =
36 "@(#) Copyright (c) 1988, 1993, 1994\n\
37 The Regents of the University of California. All rights reserved.\n";
42 static char sccsid[] = "@(#)chown.c 8.8 (Berkeley) 4/4/94";
44 static const char rcsid[] =
49 #include <sys/param.h>
64 void a_gid __P((char *));
65 void a_uid __P((char *));
66 void chownerr __P((char *));
67 u_long id __P((char *, char *));
68 void usage __P((void));
72 int Rflag, ischown, fflag, hflag, vflag;
82 int Hflag, Lflag, Pflag, ch, fts_options, hflag, rval;
85 myname = (cp = rindex(*argv, '/')) ? cp + 1 : *argv;
86 ischown = myname[2] == 'o';
88 Hflag = Lflag = Pflag = hflag = vflag = 0;
89 while ((ch = getopt(argc, argv, "HLPRfhv")) != -1)
125 fts_options = FTS_PHYSICAL;
127 if (hflag && (Lflag || Hflag))
128 errx(1, "the -R and -h options may not be specified together");
130 fts_options |= FTS_COMFOLLOW;
132 fts_options &= ~FTS_PHYSICAL;
133 fts_options |= FTS_LOGICAL;
139 if ((cp = strchr(*argv, ':')) != NULL) {
144 else if ((cp = strchr(*argv, '.')) != NULL) {
153 if ((ftsp = fts_open(++argv, fts_options, 0)) == NULL)
156 for (rval = 0; (p = fts_read(ftsp)) != NULL;) {
157 switch (p->fts_info) {
158 case FTS_D: /* Change it at FTS_DP. */
160 fts_set(ftsp, p, FTS_SKIP);
162 case FTS_DNR: /* Warn, chown, continue. */
163 warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
166 case FTS_ERR: /* Warn, continue. */
168 warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
171 case FTS_SL: /* Ignore. */
174 * The only symlinks that end up here are ones that
175 * don't point to anything and ones that we found
176 * doing a physical walk.
185 if ((uid == -1 || uid == p->fts_statp->st_uid) &&
186 (gid == -1 || gid == p->fts_statp->st_gid))
189 if (lchown(p->fts_accpath, uid, gid) && !fflag) {
190 chownerr(p->fts_path);
194 (void)printf("%s\n", p->fts_accpath);
197 if (chown(p->fts_accpath, uid, gid) && !fflag) {
198 chownerr(p->fts_path);
202 (void)printf("%s\n", p->fts_accpath);
217 if (*s == '\0') /* Argument was "uid[:.]". */
220 gid = ((gr = getgrnam(s)) == NULL) ? id(s, "group") : gr->gr_gid;
229 if (*s == '\0') /* Argument was "[:.]gid". */
231 uid = ((pw = getpwnam(s)) == NULL) ? id(s, "user") : pw->pw_uid;
243 * We know that uid_t's and gid_t's are unsigned longs.
246 val = strtoul(name, &ep, 10);
250 errx(1, "%s: illegal %s name", name, type);
258 static int euid = -1, ngroups = -1;
259 gid_t groups[NGROUPS];
261 /* Check for chown without being root. */
262 if (errno != EPERM ||
263 (uid != -1 && euid == -1 && (euid = geteuid()) != 0))
266 /* Check group membership; kernel just returns EPERM. */
267 if (gid != -1 && ngroups == -1 &&
268 euid == -1 && (euid = geteuid()) != 0) {
269 ngroups = getgroups(NGROUPS, groups);
270 while (--ngroups >= 0 && gid != groups[ngroups]);
272 errx(1, "you are not a member of group %s", gname);
280 (void)fprintf(stderr, "%s\n%s\n%s\n",
281 "usage: chown [-R [-H | -L | -P]] [-f] [-h] [-v] owner[:group] file ...",
282 " chown [-R [-H | -L | -P]] [-f] [-h] [-v] :group file ...",
283 " chgrp [-R [-H | -L | -P]] [-f] [-h] [-v] group file ...");