1/*
2 * Copyright (c) 1989, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Ken Smith of The State University of New York at Buffalo.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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.
23 *
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
34 * SUCH DAMAGE.
35 */
36
37#ifndef lint
38static char const copyright[] =
39"@(#) Copyright (c) 1989, 1993, 1994\n\
40 The Regents of the University of California. All rights reserved.\n";
41#endif /* not lint */
42
43#ifndef lint
44#if 0
45static char sccsid[] = "@(#)mv.c 8.2 (Berkeley) 4/2/94";
46#endif
47static const char rcsid[] =
| 1/*
2 * Copyright (c) 1989, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Ken Smith of The State University of New York at Buffalo.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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.
23 *
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
34 * SUCH DAMAGE.
35 */
36
37#ifndef lint
38static char const copyright[] =
39"@(#) Copyright (c) 1989, 1993, 1994\n\
40 The Regents of the University of California. All rights reserved.\n";
41#endif /* not lint */
42
43#ifndef lint
44#if 0
45static char sccsid[] = "@(#)mv.c 8.2 (Berkeley) 4/2/94";
46#endif
47static const char rcsid[] =
|
48 "$FreeBSD: head/bin/mv/mv.c 50544 1999-08-29 08:21:16Z mharo $";
| 48 "$FreeBSD: head/bin/mv/mv.c 62963 2000-07-11 18:01:42Z dwmalone $";
|
49#endif /* not lint */
50
51#include <sys/param.h>
52#include <sys/time.h>
53#include <sys/wait.h>
54#include <sys/stat.h>
55#include <sys/mount.h>
56
57#include <err.h>
58#include <errno.h>
59#include <fcntl.h>
60#include <stdio.h>
61#include <stdlib.h>
62#include <string.h>
63#include <sysexits.h>
64#include <unistd.h>
65
66#include "pathnames.h"
67
68int fflg, iflg, vflg;
69
70int copy __P((char *, char *));
71int do_move __P((char *, char *));
72int fastcopy __P((char *, char *, struct stat *));
73void usage __P((void));
74
75int
76main(argc, argv)
77 int argc;
78 char *argv[];
79{
80 register int baselen, len, rval;
81 register char *p, *endp;
82 struct stat sb;
83 int ch;
84 char path[MAXPATHLEN];
85
86 while ((ch = getopt(argc, argv, "fiv")) != -1)
87 switch (ch) {
88 case 'i':
89 iflg = 1;
90 fflg = 0;
91 break;
92 case 'f':
93 fflg = 1;
94 iflg = 0;
95 break;
96 case 'v':
97 vflg = 1;
98 break;
99 default:
100 usage();
101 }
102 argc -= optind;
103 argv += optind;
104
105 if (argc < 2)
106 usage();
107
108 /*
109 * If the stat on the target fails or the target isn't a directory,
110 * try the move. More than 2 arguments is an error in this case.
111 */
112 if (stat(argv[argc - 1], &sb) || !S_ISDIR(sb.st_mode)) {
113 if (argc > 2)
114 usage();
115 exit(do_move(argv[0], argv[1]));
116 }
117
118 /* It's a directory, move each file into it. */
119 if (strlen(argv[argc - 1]) > sizeof(path) - 1)
120 errx(1, "%s: destination pathname too long", *argv);
121 (void)strcpy(path, argv[argc - 1]);
122 baselen = strlen(path);
123 endp = &path[baselen];
124 if (!baselen || *(endp - 1) != '/') {
125 *endp++ = '/';
126 ++baselen;
127 }
128 for (rval = 0; --argc; ++argv) {
129 /*
130 * Find the last component of the source pathname. It
131 * may have trailing slashes.
132 */
133 p = *argv + strlen(*argv);
134 while (p != *argv && p[-1] == '/')
135 --p;
136 while (p != *argv && p[-1] != '/')
137 --p;
138
139 if ((baselen + (len = strlen(p))) >= MAXPATHLEN) {
140 warnx("%s: destination pathname too long", *argv);
141 rval = 1;
142 } else {
143 memmove(endp, p, len + 1);
144 if (do_move(*argv, path))
145 rval = 1;
146 }
147 }
148 exit(rval);
149}
150
151int
152do_move(from, to)
153 char *from, *to;
154{
155 struct stat sb;
156 int ask, ch, first;
157 char modep[15];
158
159 /*
160 * Check access. If interactive and file exists, ask user if it
161 * should be replaced. Otherwise if file exists but isn't writable
162 * make sure the user wants to clobber it.
163 */
164 if (!fflg && !access(to, F_OK)) {
165
166 /* prompt only if source exist */
167 if (lstat(from, &sb) == -1) {
168 warn("%s", from);
169 return (1);
170 }
171
172#define YESNO "(y/n [n]) "
173 ask = 0;
174 if (iflg) {
175 (void)fprintf(stderr, "overwrite %s? %s", to, YESNO);
176 ask = 1;
177 } else if (access(to, W_OK) && !stat(to, &sb)) {
178 strmode(sb.st_mode, modep);
179 (void)fprintf(stderr, "override %s%s%s/%s for %s? %s",
180 modep + 1, modep[9] == ' ' ? "" : " ",
181 user_from_uid(sb.st_uid, 0),
182 group_from_gid(sb.st_gid, 0), to, YESNO);
183 ask = 1;
184 }
185 if (ask) {
186 first = ch = getchar();
187 while (ch != '\n' && ch != EOF)
188 ch = getchar();
189 if (first != 'y' && first != 'Y') {
190 (void)fprintf(stderr, "not overwritten\n");
191 return (0);
192 }
193 }
194 }
195 if (!rename(from, to)) {
196 if (vflg)
197 printf("%s -> %s\n", from, to);
198 return (0);
199 }
200
201 if (errno == EXDEV) {
202 struct statfs sfs;
203 char path[MAXPATHLEN];
204
205 /* Can't mv(1) a mount point. */
206 if (realpath(from, path) == NULL) {
207 warnx("cannot resolve %s: %s", from, path);
208 return (1);
209 }
210 if (!statfs(path, &sfs) && !strcmp(path, sfs.f_mntonname)) {
211 warnx("cannot rename a mount point");
212 return (1);
213 }
214 } else {
215 warn("rename %s to %s", from, to);
216 return (1);
217 }
218
219 /*
220 * If rename fails because we're trying to cross devices, and
221 * it's a regular file, do the copy internally; otherwise, use
222 * cp and rm.
223 */
| 49#endif /* not lint */
50
51#include <sys/param.h>
52#include <sys/time.h>
53#include <sys/wait.h>
54#include <sys/stat.h>
55#include <sys/mount.h>
56
57#include <err.h>
58#include <errno.h>
59#include <fcntl.h>
60#include <stdio.h>
61#include <stdlib.h>
62#include <string.h>
63#include <sysexits.h>
64#include <unistd.h>
65
66#include "pathnames.h"
67
68int fflg, iflg, vflg;
69
70int copy __P((char *, char *));
71int do_move __P((char *, char *));
72int fastcopy __P((char *, char *, struct stat *));
73void usage __P((void));
74
75int
76main(argc, argv)
77 int argc;
78 char *argv[];
79{
80 register int baselen, len, rval;
81 register char *p, *endp;
82 struct stat sb;
83 int ch;
84 char path[MAXPATHLEN];
85
86 while ((ch = getopt(argc, argv, "fiv")) != -1)
87 switch (ch) {
88 case 'i':
89 iflg = 1;
90 fflg = 0;
91 break;
92 case 'f':
93 fflg = 1;
94 iflg = 0;
95 break;
96 case 'v':
97 vflg = 1;
98 break;
99 default:
100 usage();
101 }
102 argc -= optind;
103 argv += optind;
104
105 if (argc < 2)
106 usage();
107
108 /*
109 * If the stat on the target fails or the target isn't a directory,
110 * try the move. More than 2 arguments is an error in this case.
111 */
112 if (stat(argv[argc - 1], &sb) || !S_ISDIR(sb.st_mode)) {
113 if (argc > 2)
114 usage();
115 exit(do_move(argv[0], argv[1]));
116 }
117
118 /* It's a directory, move each file into it. */
119 if (strlen(argv[argc - 1]) > sizeof(path) - 1)
120 errx(1, "%s: destination pathname too long", *argv);
121 (void)strcpy(path, argv[argc - 1]);
122 baselen = strlen(path);
123 endp = &path[baselen];
124 if (!baselen || *(endp - 1) != '/') {
125 *endp++ = '/';
126 ++baselen;
127 }
128 for (rval = 0; --argc; ++argv) {
129 /*
130 * Find the last component of the source pathname. It
131 * may have trailing slashes.
132 */
133 p = *argv + strlen(*argv);
134 while (p != *argv && p[-1] == '/')
135 --p;
136 while (p != *argv && p[-1] != '/')
137 --p;
138
139 if ((baselen + (len = strlen(p))) >= MAXPATHLEN) {
140 warnx("%s: destination pathname too long", *argv);
141 rval = 1;
142 } else {
143 memmove(endp, p, len + 1);
144 if (do_move(*argv, path))
145 rval = 1;
146 }
147 }
148 exit(rval);
149}
150
151int
152do_move(from, to)
153 char *from, *to;
154{
155 struct stat sb;
156 int ask, ch, first;
157 char modep[15];
158
159 /*
160 * Check access. If interactive and file exists, ask user if it
161 * should be replaced. Otherwise if file exists but isn't writable
162 * make sure the user wants to clobber it.
163 */
164 if (!fflg && !access(to, F_OK)) {
165
166 /* prompt only if source exist */
167 if (lstat(from, &sb) == -1) {
168 warn("%s", from);
169 return (1);
170 }
171
172#define YESNO "(y/n [n]) "
173 ask = 0;
174 if (iflg) {
175 (void)fprintf(stderr, "overwrite %s? %s", to, YESNO);
176 ask = 1;
177 } else if (access(to, W_OK) && !stat(to, &sb)) {
178 strmode(sb.st_mode, modep);
179 (void)fprintf(stderr, "override %s%s%s/%s for %s? %s",
180 modep + 1, modep[9] == ' ' ? "" : " ",
181 user_from_uid(sb.st_uid, 0),
182 group_from_gid(sb.st_gid, 0), to, YESNO);
183 ask = 1;
184 }
185 if (ask) {
186 first = ch = getchar();
187 while (ch != '\n' && ch != EOF)
188 ch = getchar();
189 if (first != 'y' && first != 'Y') {
190 (void)fprintf(stderr, "not overwritten\n");
191 return (0);
192 }
193 }
194 }
195 if (!rename(from, to)) {
196 if (vflg)
197 printf("%s -> %s\n", from, to);
198 return (0);
199 }
200
201 if (errno == EXDEV) {
202 struct statfs sfs;
203 char path[MAXPATHLEN];
204
205 /* Can't mv(1) a mount point. */
206 if (realpath(from, path) == NULL) {
207 warnx("cannot resolve %s: %s", from, path);
208 return (1);
209 }
210 if (!statfs(path, &sfs) && !strcmp(path, sfs.f_mntonname)) {
211 warnx("cannot rename a mount point");
212 return (1);
213 }
214 } else {
215 warn("rename %s to %s", from, to);
216 return (1);
217 }
218
219 /*
220 * If rename fails because we're trying to cross devices, and
221 * it's a regular file, do the copy internally; otherwise, use
222 * cp and rm.
223 */
|
224 if (stat(from, &sb)) {
| 224 if (lstat(from, &sb)) {
|
225 warn("%s", from);
226 return (1);
227 }
228 return (S_ISREG(sb.st_mode) ?
229 fastcopy(from, to, &sb) : copy(from, to));
230}
231
232int
233fastcopy(from, to, sbp)
234 char *from, *to;
235 struct stat *sbp;
236{
237 struct timeval tval[2];
238 static u_int blen;
239 static char *bp;
240 mode_t oldmode;
241 register int nread, from_fd, to_fd;
242
243 if ((from_fd = open(from, O_RDONLY, 0)) < 0) {
244 warn("%s", from);
245 return (1);
246 }
247 if (blen < sbp->st_blksize) {
248 if (bp != NULL)
249 free(bp);
250 if ((bp = malloc(sbp->st_blksize)) == NULL) {
251 blen = 0;
252 warnx("malloc failed");
253 return (1);
254 }
255 blen = sbp->st_blksize;
256 }
257 while ((to_fd =
258 open(to, O_CREAT | O_EXCL | O_TRUNC | O_WRONLY, 0)) < 0) {
259 if (errno == EEXIST && unlink(to) == 0)
260 continue;
261 warn("%s", to);
262 (void)close(from_fd);
263 return (1);
264 }
265 while ((nread = read(from_fd, bp, blen)) > 0)
266 if (write(to_fd, bp, nread) != nread) {
267 warn("%s", to);
268 goto err;
269 }
270 if (nread < 0) {
271 warn("%s", from);
272err: if (unlink(to))
273 warn("%s: remove", to);
274 (void)close(from_fd);
275 (void)close(to_fd);
276 return (1);
277 }
278 (void)close(from_fd);
279
280 oldmode = sbp->st_mode & ALLPERMS;
281 if (fchown(to_fd, sbp->st_uid, sbp->st_gid)) {
282 warn("%s: set owner/group (was: %lu/%lu)", to,
283 (u_long)sbp->st_uid, (u_long)sbp->st_gid);
284 if (oldmode & (S_ISUID | S_ISGID)) {
285 warnx(
286"%s: owner/group changed; clearing suid/sgid (mode was 0%03o)",
287 to, oldmode);
288 sbp->st_mode &= ~(S_ISUID | S_ISGID);
289 }
290 }
291 if (fchmod(to_fd, sbp->st_mode))
292 warn("%s: set mode (was: 0%03o)", to, oldmode);
293
294 tval[0].tv_sec = sbp->st_atime;
295 tval[1].tv_sec = sbp->st_mtime;
296 tval[0].tv_usec = tval[1].tv_usec = 0;
297 if (utimes(to, tval))
298 warn("%s: set times", to);
299
300 if (close(to_fd)) {
301 warn("%s", to);
302 return (1);
303 }
304
305 if (unlink(from)) {
306 warn("%s: remove", from);
307 return (1);
308 }
309 if (vflg)
310 printf("%s -> %s\n", from, to);
311 return (0);
312}
313
314int
315copy(from, to)
316 char *from, *to;
317{
318 int pid, status;
319
320 if ((pid = fork()) == 0) {
321 execl(_PATH_CP, "mv", vflg ? "-PRpv" : "-PRp", from, to, NULL);
322 warn("%s", _PATH_CP);
323 _exit(1);
324 }
325 if (waitpid(pid, &status, 0) == -1) {
326 warn("%s: waitpid", _PATH_CP);
327 return (1);
328 }
329 if (!WIFEXITED(status)) {
330 warn("%s: did not terminate normally", _PATH_CP);
331 return (1);
332 }
333 if (WEXITSTATUS(status)) {
334 warn("%s: terminated with %d (non-zero) status",
335 _PATH_CP, WEXITSTATUS(status));
336 return (1);
337 }
338 if (!(pid = vfork())) {
339 execl(_PATH_RM, "mv", "-rf", from, NULL);
340 warn("%s", _PATH_RM);
341 _exit(1);
342 }
343 if (waitpid(pid, &status, 0) == -1) {
344 warn("%s: waitpid", _PATH_RM);
345 return (1);
346 }
347 if (!WIFEXITED(status)) {
348 warn("%s: did not terminate normally", _PATH_RM);
349 return (1);
350 }
351 if (WEXITSTATUS(status)) {
352 warn("%s: terminated with %d (non-zero) status",
353 _PATH_RM, WEXITSTATUS(status));
354 return (1);
355 }
356 return (0);
357}
358
359void
360usage()
361{
362
363 (void)fprintf(stderr, "%s\n%s\n",
364 "usage: mv [-f | -i] [-v] source target",
365 " mv [-f | -i] [-v] source ... directory");
366 exit(EX_USAGE);
367}
| 225 warn("%s", from);
226 return (1);
227 }
228 return (S_ISREG(sb.st_mode) ?
229 fastcopy(from, to, &sb) : copy(from, to));
230}
231
232int
233fastcopy(from, to, sbp)
234 char *from, *to;
235 struct stat *sbp;
236{
237 struct timeval tval[2];
238 static u_int blen;
239 static char *bp;
240 mode_t oldmode;
241 register int nread, from_fd, to_fd;
242
243 if ((from_fd = open(from, O_RDONLY, 0)) < 0) {
244 warn("%s", from);
245 return (1);
246 }
247 if (blen < sbp->st_blksize) {
248 if (bp != NULL)
249 free(bp);
250 if ((bp = malloc(sbp->st_blksize)) == NULL) {
251 blen = 0;
252 warnx("malloc failed");
253 return (1);
254 }
255 blen = sbp->st_blksize;
256 }
257 while ((to_fd =
258 open(to, O_CREAT | O_EXCL | O_TRUNC | O_WRONLY, 0)) < 0) {
259 if (errno == EEXIST && unlink(to) == 0)
260 continue;
261 warn("%s", to);
262 (void)close(from_fd);
263 return (1);
264 }
265 while ((nread = read(from_fd, bp, blen)) > 0)
266 if (write(to_fd, bp, nread) != nread) {
267 warn("%s", to);
268 goto err;
269 }
270 if (nread < 0) {
271 warn("%s", from);
272err: if (unlink(to))
273 warn("%s: remove", to);
274 (void)close(from_fd);
275 (void)close(to_fd);
276 return (1);
277 }
278 (void)close(from_fd);
279
280 oldmode = sbp->st_mode & ALLPERMS;
281 if (fchown(to_fd, sbp->st_uid, sbp->st_gid)) {
282 warn("%s: set owner/group (was: %lu/%lu)", to,
283 (u_long)sbp->st_uid, (u_long)sbp->st_gid);
284 if (oldmode & (S_ISUID | S_ISGID)) {
285 warnx(
286"%s: owner/group changed; clearing suid/sgid (mode was 0%03o)",
287 to, oldmode);
288 sbp->st_mode &= ~(S_ISUID | S_ISGID);
289 }
290 }
291 if (fchmod(to_fd, sbp->st_mode))
292 warn("%s: set mode (was: 0%03o)", to, oldmode);
293
294 tval[0].tv_sec = sbp->st_atime;
295 tval[1].tv_sec = sbp->st_mtime;
296 tval[0].tv_usec = tval[1].tv_usec = 0;
297 if (utimes(to, tval))
298 warn("%s: set times", to);
299
300 if (close(to_fd)) {
301 warn("%s", to);
302 return (1);
303 }
304
305 if (unlink(from)) {
306 warn("%s: remove", from);
307 return (1);
308 }
309 if (vflg)
310 printf("%s -> %s\n", from, to);
311 return (0);
312}
313
314int
315copy(from, to)
316 char *from, *to;
317{
318 int pid, status;
319
320 if ((pid = fork()) == 0) {
321 execl(_PATH_CP, "mv", vflg ? "-PRpv" : "-PRp", from, to, NULL);
322 warn("%s", _PATH_CP);
323 _exit(1);
324 }
325 if (waitpid(pid, &status, 0) == -1) {
326 warn("%s: waitpid", _PATH_CP);
327 return (1);
328 }
329 if (!WIFEXITED(status)) {
330 warn("%s: did not terminate normally", _PATH_CP);
331 return (1);
332 }
333 if (WEXITSTATUS(status)) {
334 warn("%s: terminated with %d (non-zero) status",
335 _PATH_CP, WEXITSTATUS(status));
336 return (1);
337 }
338 if (!(pid = vfork())) {
339 execl(_PATH_RM, "mv", "-rf", from, NULL);
340 warn("%s", _PATH_RM);
341 _exit(1);
342 }
343 if (waitpid(pid, &status, 0) == -1) {
344 warn("%s: waitpid", _PATH_RM);
345 return (1);
346 }
347 if (!WIFEXITED(status)) {
348 warn("%s: did not terminate normally", _PATH_RM);
349 return (1);
350 }
351 if (WEXITSTATUS(status)) {
352 warn("%s: terminated with %d (non-zero) status",
353 _PATH_RM, WEXITSTATUS(status));
354 return (1);
355 }
356 return (0);
357}
358
359void
360usage()
361{
362
363 (void)fprintf(stderr, "%s\n%s\n",
364 "usage: mv [-f | -i] [-v] source target",
365 " mv [-f | -i] [-v] source ... directory");
366 exit(EX_USAGE);
367}
|