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
36 * @(#) Copyright (c) 1989, 1993, 1994 The Regents of the University of California. All rights reserved.
37 * @(#)mv.c 8.2 (Berkeley) 4/2/94
38 * $FreeBSD: src/bin/mv/mv.c,v 1.24.2.5 2002/08/19 00:26:41 johan Exp $
39 * $DragonFly: src/bin/mv/mv.c,v 1.3 2003/09/21 04:23:40 drhodus Exp $
42 #include <sys/param.h>
46 #include <sys/mount.h>
58 #include "pathnames.h"
60 int fflg, iflg, nflg, vflg;
62 int copy (char *, char *);
63 int do_move (char *, char *);
64 int fastcopy (char *, char *, struct stat *);
65 int main (int, char *[]);
73 register int baselen, len, rval;
74 register char *p, *endp;
79 while ((ch = getopt(argc, argv, "finv")) != -1)
106 * If the stat on the target fails or the target isn't a directory,
107 * try the move. More than 2 arguments is an error in this case.
109 if (stat(argv[argc - 1], &sb) || !S_ISDIR(sb.st_mode)) {
112 exit(do_move(argv[0], argv[1]));
115 /* It's a directory, move each file into it. */
116 if (strlen(argv[argc - 1]) > sizeof(path) - 1)
117 errx(1, "%s: destination pathname too long", *argv);
118 (void)strcpy(path, argv[argc - 1]);
119 baselen = strlen(path);
120 endp = &path[baselen];
121 if (!baselen || *(endp - 1) != '/') {
125 for (rval = 0; --argc; ++argv) {
127 * Find the last component of the source pathname. It
128 * may have trailing slashes.
130 p = *argv + strlen(*argv);
131 while (p != *argv && p[-1] == '/')
133 while (p != *argv && p[-1] != '/')
136 if ((baselen + (len = strlen(p))) >= PATH_MAX) {
137 warnx("%s: destination pathname too long", *argv);
140 memmove(endp, p, (size_t)len + 1);
141 if (do_move(*argv, path))
157 * Check access. If interactive and file exists, ask user if it
158 * should be replaced. Otherwise if file exists but isn't writable
159 * make sure the user wants to clobber it.
161 if (!fflg && !access(to, F_OK)) {
163 /* prompt only if source exist */
164 if (lstat(from, &sb) == -1) {
169 #define YESNO "(y/n [n]) "
173 printf("%s not overwritten\n", to);
176 (void)fprintf(stderr, "overwrite %s? %s", to, YESNO);
178 } else if (access(to, W_OK) && !stat(to, &sb)) {
179 strmode(sb.st_mode, modep);
180 (void)fprintf(stderr, "override %s%s%s/%s for %s? %s",
181 modep + 1, modep[9] == ' ' ? "" : " ",
182 user_from_uid((unsigned long)sb.st_uid, 0),
183 group_from_gid((unsigned long)sb.st_gid, 0), to, YESNO);
187 first = ch = getchar();
188 while (ch != '\n' && ch != EOF)
190 if (first != 'y' && first != 'Y') {
191 (void)fprintf(stderr, "not overwritten\n");
196 if (!rename(from, to)) {
198 printf("%s -> %s\n", from, to);
202 if (errno == EXDEV) {
206 /* Can't mv(1) a mount point. */
207 if (realpath(from, path) == NULL) {
208 warnx("cannot resolve %s: %s", from, path);
211 if (!statfs(path, &sfs) && !strcmp(path, sfs.f_mntonname)) {
212 warnx("cannot rename a mount point");
216 warn("rename %s to %s", from, to);
221 * If rename fails because we're trying to cross devices, and
222 * it's a regular file, do the copy internally; otherwise, use
225 if (lstat(from, &sb)) {
229 return (S_ISREG(sb.st_mode) ?
230 fastcopy(from, to, &sb) : copy(from, to));
234 fastcopy(from, to, sbp)
238 struct timeval tval[2];
242 register int nread, from_fd, to_fd;
244 if ((from_fd = open(from, O_RDONLY, 0)) < 0) {
248 if (blen < sbp->st_blksize) {
251 if ((bp = malloc((size_t)sbp->st_blksize)) == NULL) {
253 warnx("malloc failed");
256 blen = sbp->st_blksize;
259 open(to, O_CREAT | O_EXCL | O_TRUNC | O_WRONLY, 0)) < 0) {
260 if (errno == EEXIST && unlink(to) == 0)
263 (void)close(from_fd);
266 while ((nread = read(from_fd, bp, (size_t)blen)) > 0)
267 if (write(to_fd, bp, (size_t)nread) != nread) {
274 warn("%s: remove", to);
275 (void)close(from_fd);
279 (void)close(from_fd);
281 oldmode = sbp->st_mode & ALLPERMS;
282 if (fchown(to_fd, sbp->st_uid, sbp->st_gid)) {
283 warn("%s: set owner/group (was: %lu/%lu)", to,
284 (u_long)sbp->st_uid, (u_long)sbp->st_gid);
285 if (oldmode & (S_ISUID | S_ISGID)) {
287 "%s: owner/group changed; clearing suid/sgid (mode was 0%03o)",
289 sbp->st_mode &= ~(S_ISUID | S_ISGID);
292 if (fchmod(to_fd, sbp->st_mode))
293 warn("%s: set mode (was: 0%03o)", to, oldmode);
296 * NFS doesn't support chflags; ignore errors unless there's reason
297 * to believe we're losing bits. (Note, this still won't be right
298 * if the server supports flags and we were trying to *remove* flags
299 * on a file that we copied, i.e., that we didn't create.)
302 if (fchflags(to_fd, (u_long)sbp->st_flags))
303 if (errno != EOPNOTSUPP || sbp->st_flags != 0)
304 warn("%s: set flags (was: 0%07o)", to, sbp->st_flags);
306 tval[0].tv_sec = sbp->st_atime;
307 tval[1].tv_sec = sbp->st_mtime;
308 tval[0].tv_usec = tval[1].tv_usec = 0;
309 if (utimes(to, tval))
310 warn("%s: set times", to);
318 warn("%s: remove", from);
322 printf("%s -> %s\n", from, to);
332 if ((pid = fork()) == 0) {
333 execl(_PATH_CP, "mv", vflg ? "-PRpv" : "-PRp", "--", from, to,
335 warn("%s", _PATH_CP);
338 if (waitpid(pid, &status, 0) == -1) {
339 warn("%s: waitpid", _PATH_CP);
342 if (!WIFEXITED(status)) {
343 warn("%s: did not terminate normally", _PATH_CP);
346 if (WEXITSTATUS(status)) {
347 warn("%s: terminated with %d (non-zero) status",
348 _PATH_CP, WEXITSTATUS(status));
351 if (!(pid = vfork())) {
352 execl(_PATH_RM, "mv", "-rf", "--", from, (char *)NULL);
353 warn("%s", _PATH_RM);
356 if (waitpid(pid, &status, 0) == -1) {
357 warn("%s: waitpid", _PATH_RM);
360 if (!WIFEXITED(status)) {
361 warn("%s: did not terminate normally", _PATH_RM);
364 if (WEXITSTATUS(status)) {
365 warn("%s: terminated with %d (non-zero) status",
366 _PATH_RM, WEXITSTATUS(status));
376 (void)fprintf(stderr, "%s\n%s\n",
377 "usage: mv [-f | -i | -n] [-v] source target",
378 " mv [-f | -i | -n] [-v] source ... directory");