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";
48 #include <sys/cdefs.h>
49 __RCSID("$FreeBSD: src/bin/mv/mv.c,v 1.39 2002/07/09 17:45:13 johan Exp $");
51 #include <sys/param.h>
55 #include <sys/mount.h>
72 #include <sys/mount.h>
76 #include <get_compat.h>
78 #define COMPAT_MODE(a,b) (1)
79 #endif /* __APPLE__ */
81 #include "pathnames.h"
83 int fflg
, iflg
, nflg
, vflg
;
85 int copy(char *, char *);
86 int do_move(char *, char *);
87 int fastcopy(char *, char *, struct stat
*);
91 main(int argc
, char *argv
[])
99 #endif /* __APPLE__ */
103 while ((ch
= getopt(argc
, argv
, "finv")) != -1)
130 * If the stat on the target fails or the target isn't a directory,
131 * try the move. More than 2 arguments is an error in this case.
133 if (stat(argv
[argc
- 1], &sb
) || !S_ISDIR(sb
.st_mode
)) {
136 exit(do_move(argv
[0], argv
[1]));
140 if (argc
== 2 && !lstat(argv
[0], &fsb
) && !lstat(argv
[1], &tsb
) &&
141 fsb
.st_ino
== tsb
.st_ino
&& fsb
.st_dev
== tsb
.st_dev
&&
142 fsb
.st_gen
== tsb
.st_gen
) {
144 * We appear to be trying to move a directory into itself,
145 * but it may be that the filesystem is case insensitive and
146 * we are trying to rename the directory to a case-variant.
147 * Ignoring trailing slashes, we look for any difference in
148 * the directory names. If there is a difference we do
149 * the rename, otherwise we fall-thru to the traditional
150 * error. Note the lstat calls above (rather than stat)
151 * permit the renaming of symlinks to case-variants.
155 for (p
= argv
[0] + strlen(argv
[0]); p
!= argv
[0]; ) {
160 for (q
= argv
[1] + strlen(argv
[1]); q
!= argv
[1]; ) {
165 for ( ; ; p
--, q
--) {
167 exit(do_move(argv
[0], argv
[1]));
171 if (q
== argv
[1] || *(q
-1) == '/')
173 exit(do_move(argv
[0], argv
[1]));
176 if (p
== argv
[0] || *(p
-1) == '/')
178 exit(do_move(argv
[0], argv
[1]));
182 #endif /* __APPLE__ */
184 /* It's a directory, move each file into it. */
185 if (strlen(argv
[argc
- 1]) > sizeof(path
) - 1)
186 errx(1, "%s: destination pathname too long", *argv
);
187 (void)strcpy(path
, argv
[argc
- 1]);
188 baselen
= strlen(path
);
189 endp
= &path
[baselen
];
190 if (!baselen
|| *(endp
- 1) != '/') {
194 for (rval
= 0; --argc
; ++argv
) {
196 * Find the last component of the source pathname. It
197 * may have trailing slashes.
199 p
= *argv
+ strlen(*argv
);
200 while (p
!= *argv
&& p
[-1] == '/')
202 while (p
!= *argv
&& p
[-1] != '/')
205 if ((baselen
+ (len
= strlen(p
))) >= PATH_MAX
) {
206 warnx("%s: destination pathname too long", *argv
);
209 memmove(endp
, p
, (size_t)len
+ 1);
210 if (COMPAT_MODE("bin/mv", "unix2003")) {
212 * For Unix 2003 compatibility, check if old and new are
213 * same file, and produce an error * (like on Sun) that
214 * conformance test 66 in mv.ex expects.
216 if (!stat(*argv
, &fsb
) && !stat(path
, &tsb
) &&
217 fsb
.st_ino
== tsb
.st_ino
&&
218 fsb
.st_dev
== tsb
.st_dev
&&
219 fsb
.st_gen
== tsb
.st_gen
) {
220 (void)fprintf(stderr
, "mv: %s and %s are identical\n",
222 rval
= 2; /* Like the Sun */
224 if (do_move(*argv
, path
))
228 if (do_move(*argv
, path
))
237 do_move(char *from
, char *to
)
244 * Check access. If interactive and file exists, ask user if it
245 * should be replaced. Otherwise if file exists but isn't writable
246 * make sure the user wants to clobber it.
248 if (!fflg
&& !access(to
, F_OK
)) {
250 /* prompt only if source exist */
251 if (lstat(from
, &sb
) == -1) {
256 #define YESNO "(y/n [n]) "
260 printf("%s not overwritten\n", to
);
263 (void)fprintf(stderr
, "overwrite %s? %s", to
, YESNO
);
265 } else if (access(to
, W_OK
) && !stat(to
, &sb
)) {
266 strmode(sb
.st_mode
, modep
);
267 (void)fprintf(stderr
, "override %s%s%s/%s for %s? %s",
268 modep
+ 1, modep
[9] == ' ' ? "" : " ",
269 user_from_uid(sb
.st_uid
, 0),
270 group_from_gid(sb
.st_gid
, 0), to
, YESNO
);
274 first
= ch
= getchar();
275 while (ch
!= '\n' && ch
!= EOF
)
277 if (first
!= 'y' && first
!= 'Y') {
278 (void)fprintf(stderr
, "not overwritten\n");
283 if (!rename(from
, to
)) {
285 printf("%s -> %s\n", from
, to
);
289 if (errno
== EXDEV
) {
293 /* Can't mv(1) a mount point. */
294 if (realpath(from
, path
) == NULL
) {
295 warnx("cannot resolve %s: %s", from
, path
);
298 if (!statfs(path
, &sfs
) && !strcmp(path
, sfs
.f_mntonname
)) {
299 warnx("cannot rename a mount point");
303 warn("rename %s to %s", from
, to
);
308 * If rename fails because we're trying to cross devices, and
309 * it's a regular file, do the copy internally; otherwise, use
312 if (lstat(from
, &sb
)) {
316 return (S_ISREG(sb
.st_mode
) ?
317 fastcopy(from
, to
, &sb
) : copy(from
, to
));
321 fastcopy(char *from
, char *to
, struct stat
*sbp
)
323 struct timeval tval
[2];
330 if ((from_fd
= open(from
, O_RDONLY
, 0)) < 0) {
334 if (blen
< sbp
->st_blksize
) {
337 if ((bp
= malloc((size_t)sbp
->st_blksize
)) == NULL
) {
339 warnx("malloc failed");
342 blen
= sbp
->st_blksize
;
345 open(to
, O_CREAT
| O_EXCL
| O_TRUNC
| O_WRONLY
, 0)) < 0) {
346 if (errno
== EEXIST
&& unlink(to
) == 0)
349 (void)close(from_fd
);
357 * Pre-allocate blocks for the destination file if it
360 if (fstatfs(to_fd
, &sfs
) == 0 &&
361 strcmp(sfs
.f_fstypename
, "acfs") == 0) {
365 fst
.fst_posmode
= F_PEOFPOSMODE
;
367 fst
.fst_length
= sbp
->st_size
;
369 (void) fcntl(to_fd
, F_PREALLOCATE
, &fst
);
372 #endif /* __APPLE__ */
373 while ((nread
= read(from_fd
, bp
, (size_t)blen
)) > 0)
374 if (write(to_fd
, bp
, (size_t)nread
) != nread
) {
381 warn("%s: remove", to
);
382 (void)close(from_fd
);
387 /* XATTR can fail if to_fd has mode 000 */
388 if (fcopyfile(from_fd
, to_fd
, NULL
, COPYFILE_ACL
| COPYFILE_XATTR
) < 0) {
389 warn("%s: unable to move extended attributes and ACL from %s",
393 (void)close(from_fd
);
395 oldmode
= sbp
->st_mode
& ALLPERMS
;
396 if (fchown(to_fd
, sbp
->st_uid
, sbp
->st_gid
)) {
397 warn("%s: set owner/group (was: %lu/%lu)", to
,
398 (u_long
)sbp
->st_uid
, (u_long
)sbp
->st_gid
);
399 if (oldmode
& (S_ISUID
| S_ISGID
)) {
401 "%s: owner/group changed; clearing suid/sgid (mode was 0%03o)",
403 sbp
->st_mode
&= ~(S_ISUID
| S_ISGID
);
406 if (fchmod(to_fd
, sbp
->st_mode
))
407 warn("%s: set mode (was: 0%03o)", to
, oldmode
);
410 * NFS doesn't support chflags; ignore errors unless there's reason
411 * to believe we're losing bits. (Note, this still won't be right
412 * if the server supports flags and we were trying to *remove* flags
413 * on a file that we copied, i.e., that we didn't create.)
416 if (fchflags(to_fd
, (u_int
)sbp
->st_flags
))
417 if (errno
!= ENOTSUP
|| sbp
->st_flags
!= 0)
418 warn("%s: set flags (was: 0%07o)", to
, sbp
->st_flags
);
420 tval
[0].tv_sec
= sbp
->st_atime
;
421 tval
[1].tv_sec
= sbp
->st_mtime
;
422 tval
[0].tv_usec
= tval
[1].tv_usec
= 0;
423 if (utimes(to
, tval
))
424 warn("%s: set times", to
);
432 warn("%s: remove", from
);
436 printf("%s -> %s\n", from
, to
);
441 copy(char *from
, char *to
)
445 if ((pid
= fork()) == 0) {
446 execl(_PATH_CP
, "mv", vflg
? "-PRpv" : "-PRp", "--", from
, to
,
448 warn("%s", _PATH_CP
);
451 if (waitpid(pid
, &status
, 0) == -1) {
452 warn("%s: waitpid", _PATH_CP
);
455 if (!WIFEXITED(status
)) {
456 warnx("%s: did not terminate normally", _PATH_CP
);
459 if (WEXITSTATUS(status
)) {
460 warnx("%s: terminated with %d (non-zero) status",
461 _PATH_CP
, WEXITSTATUS(status
));
464 if (!(pid
= vfork())) {
465 execl(_PATH_RM
, "mv", "-rf", "--", from
, (char *)NULL
);
466 warn("%s", _PATH_RM
);
469 if (waitpid(pid
, &status
, 0) == -1) {
470 warn("%s: waitpid", _PATH_RM
);
473 if (!WIFEXITED(status
)) {
474 warnx("%s: did not terminate normally", _PATH_RM
);
477 if (WEXITSTATUS(status
)) {
478 warnx("%s: terminated with %d (non-zero) status",
479 _PATH_RM
, WEXITSTATUS(status
));
489 (void)fprintf(stderr
, "%s\n%s\n",
490 "usage: mv [-f | -i | -n] [-v] source target",
491 " mv [-f | -i | -n] [-v] source ... directory");