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 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 static char const copyright[] =
39 "@(#) Copyright (c) 1989, 1993, 1994\n\
40 The Regents of the University of California. All rights reserved.\n";
45 static char sccsid[] = "@(#)mv.c 8.2 (Berkeley) 4/2/94";
47 static const char rcsid[] =
48 "$FreeBSD: src/bin/mv/mv.c,v 1.24.2.5 2002/08/19 00:26:41 johan Exp $";
51 #include <sys/param.h>
55 #include <sys/mount.h>
67 #include "pathnames.h"
69 int fflg, iflg, nflg, vflg;
71 int copy __P((char *, char *));
72 int do_move __P((char *, char *));
73 int fastcopy __P((char *, char *, struct stat *));
74 int main __P((int, char *[]));
75 void usage __P((void));
82 register int baselen, len, rval;
83 register char *p, *endp;
88 while ((ch = getopt(argc, argv, "finv")) != -1)
115 * If the stat on the target fails or the target isn't a directory,
116 * try the move. More than 2 arguments is an error in this case.
118 if (stat(argv[argc - 1], &sb) || !S_ISDIR(sb.st_mode)) {
121 exit(do_move(argv[0], argv[1]));
124 /* It's a directory, move each file into it. */
125 if (strlen(argv[argc - 1]) > sizeof(path) - 1)
126 errx(1, "%s: destination pathname too long", *argv);
127 (void)strcpy(path, argv[argc - 1]);
128 baselen = strlen(path);
129 endp = &path[baselen];
130 if (!baselen || *(endp - 1) != '/') {
134 for (rval = 0; --argc; ++argv) {
136 * Find the last component of the source pathname. It
137 * may have trailing slashes.
139 p = *argv + strlen(*argv);
140 while (p != *argv && p[-1] == '/')
142 while (p != *argv && p[-1] != '/')
145 if ((baselen + (len = strlen(p))) >= PATH_MAX) {
146 warnx("%s: destination pathname too long", *argv);
149 memmove(endp, p, (size_t)len + 1);
150 if (do_move(*argv, path))
166 * Check access. If interactive and file exists, ask user if it
167 * should be replaced. Otherwise if file exists but isn't writable
168 * make sure the user wants to clobber it.
170 if (!fflg && !access(to, F_OK)) {
172 /* prompt only if source exist */
173 if (lstat(from, &sb) == -1) {
178 #define YESNO "(y/n [n]) "
182 printf("%s not overwritten\n", to);
185 (void)fprintf(stderr, "overwrite %s? %s", to, YESNO);
187 } else if (access(to, W_OK) && !stat(to, &sb)) {
188 strmode(sb.st_mode, modep);
189 (void)fprintf(stderr, "override %s%s%s/%s for %s? %s",
190 modep + 1, modep[9] == ' ' ? "" : " ",
191 user_from_uid((unsigned long)sb.st_uid, 0),
192 group_from_gid((unsigned long)sb.st_gid, 0), to, YESNO);
196 first = ch = getchar();
197 while (ch != '\n' && ch != EOF)
199 if (first != 'y' && first != 'Y') {
200 (void)fprintf(stderr, "not overwritten\n");
205 if (!rename(from, to)) {
207 printf("%s -> %s\n", from, to);
211 if (errno == EXDEV) {
215 /* Can't mv(1) a mount point. */
216 if (realpath(from, path) == NULL) {
217 warnx("cannot resolve %s: %s", from, path);
220 if (!statfs(path, &sfs) && !strcmp(path, sfs.f_mntonname)) {
221 warnx("cannot rename a mount point");
225 warn("rename %s to %s", from, to);
230 * If rename fails because we're trying to cross devices, and
231 * it's a regular file, do the copy internally; otherwise, use
234 if (lstat(from, &sb)) {
238 return (S_ISREG(sb.st_mode) ?
239 fastcopy(from, to, &sb) : copy(from, to));
243 fastcopy(from, to, sbp)
247 struct timeval tval[2];
251 register int nread, from_fd, to_fd;
253 if ((from_fd = open(from, O_RDONLY, 0)) < 0) {
257 if (blen < sbp->st_blksize) {
260 if ((bp = malloc((size_t)sbp->st_blksize)) == NULL) {
262 warnx("malloc failed");
265 blen = sbp->st_blksize;
268 open(to, O_CREAT | O_EXCL | O_TRUNC | O_WRONLY, 0)) < 0) {
269 if (errno == EEXIST && unlink(to) == 0)
272 (void)close(from_fd);
275 while ((nread = read(from_fd, bp, (size_t)blen)) > 0)
276 if (write(to_fd, bp, (size_t)nread) != nread) {
283 warn("%s: remove", to);
284 (void)close(from_fd);
288 (void)close(from_fd);
290 oldmode = sbp->st_mode & ALLPERMS;
291 if (fchown(to_fd, sbp->st_uid, sbp->st_gid)) {
292 warn("%s: set owner/group (was: %lu/%lu)", to,
293 (u_long)sbp->st_uid, (u_long)sbp->st_gid);
294 if (oldmode & (S_ISUID | S_ISGID)) {
296 "%s: owner/group changed; clearing suid/sgid (mode was 0%03o)",
298 sbp->st_mode &= ~(S_ISUID | S_ISGID);
301 if (fchmod(to_fd, sbp->st_mode))
302 warn("%s: set mode (was: 0%03o)", to, oldmode);
305 * NFS doesn't support chflags; ignore errors unless there's reason
306 * to believe we're losing bits. (Note, this still won't be right
307 * if the server supports flags and we were trying to *remove* flags
308 * on a file that we copied, i.e., that we didn't create.)
311 if (fchflags(to_fd, (u_long)sbp->st_flags))
312 if (errno != EOPNOTSUPP || sbp->st_flags != 0)
313 warn("%s: set flags (was: 0%07o)", to, sbp->st_flags);
315 tval[0].tv_sec = sbp->st_atime;
316 tval[1].tv_sec = sbp->st_mtime;
317 tval[0].tv_usec = tval[1].tv_usec = 0;
318 if (utimes(to, tval))
319 warn("%s: set times", to);
327 warn("%s: remove", from);
331 printf("%s -> %s\n", from, to);
341 if ((pid = fork()) == 0) {
342 execl(_PATH_CP, "mv", vflg ? "-PRpv" : "-PRp", "--", from, to,
344 warn("%s", _PATH_CP);
347 if (waitpid(pid, &status, 0) == -1) {
348 warn("%s: waitpid", _PATH_CP);
351 if (!WIFEXITED(status)) {
352 warn("%s: did not terminate normally", _PATH_CP);
355 if (WEXITSTATUS(status)) {
356 warn("%s: terminated with %d (non-zero) status",
357 _PATH_CP, WEXITSTATUS(status));
360 if (!(pid = vfork())) {
361 execl(_PATH_RM, "mv", "-rf", "--", from, (char *)NULL);
362 warn("%s", _PATH_RM);
365 if (waitpid(pid, &status, 0) == -1) {
366 warn("%s: waitpid", _PATH_RM);
369 if (!WIFEXITED(status)) {
370 warn("%s: did not terminate normally", _PATH_RM);
373 if (WEXITSTATUS(status)) {
374 warn("%s: terminated with %d (non-zero) status",
375 _PATH_RM, WEXITSTATUS(status));
385 (void)fprintf(stderr, "%s\n%s\n",
386 "usage: mv [-f | -i | -n] [-v] source target",
387 " mv [-f | -i | -n] [-v] source ... directory");