2 * Copyright (c) 1989, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Ken Smith of The State University of New York at Buffalo.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 static char const copyright[] =
36 "@(#) Copyright (c) 1989, 1993, 1994\n\
37 The Regents of the University of California. All rights reserved.\n";
41 static char sccsid[] = "@(#)mv.c 8.2 (Berkeley) 4/2/94";
44 #include <sys/cdefs.h>
45 __FBSDID("$FreeBSD$");
47 #include <sys/types.h>
49 #include <sys/param.h>
53 #include <sys/mount.h>
68 int fflg, iflg, nflg, vflg;
70 int copy(char *, char *);
71 int do_move(char *, char *);
72 int fastcopy(char *, char *, struct stat *);
76 main(int argc, char *argv[])
85 while ((ch = getopt(argc, argv, "finv")) != -1)
112 * If the stat on the target fails or the target isn't a directory,
113 * try the move. More than 2 arguments is an error in this case.
115 if (stat(argv[argc - 1], &sb) || !S_ISDIR(sb.st_mode)) {
118 exit(do_move(argv[0], argv[1]));
121 /* It's a directory, move each file into it. */
122 if (strlen(argv[argc - 1]) > sizeof(path) - 1)
123 errx(1, "%s: destination pathname too long", *argv);
124 (void)strcpy(path, argv[argc - 1]);
125 baselen = strlen(path);
126 endp = &path[baselen];
127 if (!baselen || *(endp - 1) != '/') {
131 for (rval = 0; --argc; ++argv) {
133 * Find the last component of the source pathname. It
134 * may have trailing slashes.
136 p = *argv + strlen(*argv);
137 while (p != *argv && p[-1] == '/')
139 while (p != *argv && p[-1] != '/')
142 if ((baselen + (len = strlen(p))) >= PATH_MAX) {
143 warnx("%s: destination pathname too long", *argv);
146 memmove(endp, p, (size_t)len + 1);
147 if (do_move(*argv, path))
155 do_move(char *from, char *to)
162 * Check access. If interactive and file exists, ask user if it
163 * should be replaced. Otherwise if file exists but isn't writable
164 * make sure the user wants to clobber it.
166 if (!fflg && !access(to, F_OK)) {
168 /* prompt only if source exist */
169 if (lstat(from, &sb) == -1) {
174 #define YESNO "(y/n [n]) "
178 printf("%s not overwritten\n", to);
181 (void)fprintf(stderr, "overwrite %s? %s", to, YESNO);
183 } else if (access(to, W_OK) && !stat(to, &sb)) {
184 strmode(sb.st_mode, modep);
185 (void)fprintf(stderr, "override %s%s%s/%s for %s? %s",
186 modep + 1, modep[9] == ' ' ? "" : " ",
187 user_from_uid((unsigned long)sb.st_uid, 0),
188 group_from_gid((unsigned long)sb.st_gid, 0), to, YESNO);
192 first = ch = getchar();
193 while (ch != '\n' && ch != EOF)
195 if (first != 'y' && first != 'Y') {
196 (void)fprintf(stderr, "not overwritten\n");
201 if (!rename(from, to)) {
203 printf("%s -> %s\n", from, to);
207 if (errno == EXDEV) {
212 * If the source is a symbolic link and is on another
213 * filesystem, it can be recreated at the destination.
215 if (lstat(from, &sb) == -1) {
219 if (!S_ISLNK(sb.st_mode)) {
220 /* Can't mv(1) a mount point. */
221 if (realpath(from, path) == NULL) {
222 warnx("cannot resolve %s: %s", from, path);
225 if (!statfs(path, &sfs) &&
226 !strcmp(path, sfs.f_mntonname)) {
227 warnx("cannot rename a mount point");
232 warn("rename %s to %s", from, to);
237 * If rename fails because we're trying to cross devices, and
238 * it's a regular file, do the copy internally; otherwise, use
241 if (lstat(from, &sb)) {
245 return (S_ISREG(sb.st_mode) ?
246 fastcopy(from, to, &sb) : copy(from, to));
250 fastcopy(char *from, char *to, struct stat *sbp)
252 struct timeval tval[2];
256 int nread, from_fd, to_fd;
259 if ((from_fd = open(from, O_RDONLY, 0)) < 0) {
263 if (blen < sbp->st_blksize) {
266 if ((bp = malloc((size_t)sbp->st_blksize)) == NULL) {
268 warnx("malloc failed");
271 blen = sbp->st_blksize;
274 open(to, O_CREAT | O_EXCL | O_TRUNC | O_WRONLY, 0)) < 0) {
275 if (errno == EEXIST && unlink(to) == 0)
278 (void)close(from_fd);
281 while ((nread = read(from_fd, bp, (size_t)blen)) > 0)
282 if (write(to_fd, bp, (size_t)nread) != nread) {
289 warn("%s: remove", to);
290 (void)close(from_fd);
295 oldmode = sbp->st_mode & ALLPERMS;
296 if (fchown(to_fd, sbp->st_uid, sbp->st_gid)) {
297 warn("%s: set owner/group (was: %lu/%lu)", to,
298 (u_long)sbp->st_uid, (u_long)sbp->st_gid);
299 if (oldmode & (S_ISUID | S_ISGID)) {
301 "%s: owner/group changed; clearing suid/sgid (mode was 0%03o)",
303 sbp->st_mode &= ~(S_ISUID | S_ISGID);
307 * POSIX 1003.2c states that if _POSIX_ACL_EXTENDED is in effect
308 * for dest_file, then it's ACLs shall reflect the ACLs of the
311 if (fpathconf(to_fd, _PC_ACL_EXTENDED) == 1 &&
312 fpathconf(from_fd, _PC_ACL_EXTENDED) == 1) {
313 acl = acl_get_fd(from_fd);
315 warn("failed to get acl entries while setting %s",
317 else if (acl_set_fd(to_fd, acl) < 0)
318 warn("failed to set acl entries for %s", to);
320 (void)close(from_fd);
321 if (fchmod(to_fd, sbp->st_mode))
322 warn("%s: set mode (was: 0%03o)", to, oldmode);
325 * NFS doesn't support chflags; ignore errors unless there's reason
326 * to believe we're losing bits. (Note, this still won't be right
327 * if the server supports flags and we were trying to *remove* flags
328 * on a file that we copied, i.e., that we didn't create.)
331 if (fchflags(to_fd, (u_long)sbp->st_flags))
332 if (errno != EOPNOTSUPP || sbp->st_flags != 0)
333 warn("%s: set flags (was: 0%07o)", to, sbp->st_flags);
335 tval[0].tv_sec = sbp->st_atime;
336 tval[1].tv_sec = sbp->st_mtime;
337 tval[0].tv_usec = tval[1].tv_usec = 0;
338 if (utimes(to, tval))
339 warn("%s: set times", to);
347 warn("%s: remove", from);
351 printf("%s -> %s\n", from, to);
356 copy(char *from, char *to)
360 if ((pid = fork()) == 0) {
361 execl(_PATH_CP, "mv", vflg ? "-PRpv" : "-PRp", "--", from, to,
363 warn("%s", _PATH_CP);
366 if (waitpid(pid, &status, 0) == -1) {
367 warn("%s: waitpid", _PATH_CP);
370 if (!WIFEXITED(status)) {
371 warnx("%s: did not terminate normally", _PATH_CP);
374 if (WEXITSTATUS(status)) {
375 warnx("%s: terminated with %d (non-zero) status",
376 _PATH_CP, WEXITSTATUS(status));
379 if (!(pid = vfork())) {
380 execl(_PATH_RM, "mv", "-rf", "--", from, (char *)NULL);
381 warn("%s", _PATH_RM);
384 if (waitpid(pid, &status, 0) == -1) {
385 warn("%s: waitpid", _PATH_RM);
388 if (!WIFEXITED(status)) {
389 warnx("%s: did not terminate normally", _PATH_RM);
392 if (WEXITSTATUS(status)) {
393 warnx("%s: terminated with %d (non-zero) status",
394 _PATH_RM, WEXITSTATUS(status));
404 (void)fprintf(stderr, "%s\n%s\n",
405 "usage: mv [-f | -i | -n] [-v] source target",
406 " mv [-f | -i | -n] [-v] source ... directory");