Deleted Added
full compact
mv.c (76878) mv.c (77409)
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 76878 2001-05-20 05:00:16Z kris $";
48 "$FreeBSD: head/bin/mv/mv.c 77409 2001-05-29 18:20:36Z imp $";
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>
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 <limits.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 *));
73int main __P((int, char *[]));
74void usage __P((void));
75
76int
77main(argc, argv)
78 int argc;
79 char *argv[];
80{
81 register int baselen, len, rval;
82 register char *p, *endp;
83 struct stat sb;
84 int ch;
61#include <stdio.h>
62#include <stdlib.h>
63#include <string.h>
64#include <sysexits.h>
65#include <unistd.h>
66
67#include "pathnames.h"
68
69int fflg, iflg, vflg;
70
71int copy __P((char *, char *));
72int do_move __P((char *, char *));
73int fastcopy __P((char *, char *, struct stat *));
74int main __P((int, char *[]));
75void usage __P((void));
76
77int
78main(argc, argv)
79 int argc;
80 char *argv[];
81{
82 register int baselen, len, rval;
83 register char *p, *endp;
84 struct stat sb;
85 int ch;
85 char path[MAXPATHLEN];
86 char path[PATH_MAX];
86
87 while ((ch = getopt(argc, argv, "fiv")) != -1)
88 switch (ch) {
89 case 'i':
90 iflg = 1;
91 fflg = 0;
92 break;
93 case 'f':
94 fflg = 1;
95 iflg = 0;
96 break;
97 case 'v':
98 vflg = 1;
99 break;
100 default:
101 usage();
102 }
103 argc -= optind;
104 argv += optind;
105
106 if (argc < 2)
107 usage();
108
109 /*
110 * If the stat on the target fails or the target isn't a directory,
111 * try the move. More than 2 arguments is an error in this case.
112 */
113 if (stat(argv[argc - 1], &sb) || !S_ISDIR(sb.st_mode)) {
114 if (argc > 2)
115 usage();
116 exit(do_move(argv[0], argv[1]));
117 }
118
119 /* It's a directory, move each file into it. */
120 if (strlen(argv[argc - 1]) > sizeof(path) - 1)
121 errx(1, "%s: destination pathname too long", *argv);
122 (void)strcpy(path, argv[argc - 1]);
123 baselen = strlen(path);
124 endp = &path[baselen];
125 if (!baselen || *(endp - 1) != '/') {
126 *endp++ = '/';
127 ++baselen;
128 }
129 for (rval = 0; --argc; ++argv) {
130 /*
131 * Find the last component of the source pathname. It
132 * may have trailing slashes.
133 */
134 p = *argv + strlen(*argv);
135 while (p != *argv && p[-1] == '/')
136 --p;
137 while (p != *argv && p[-1] != '/')
138 --p;
139
87
88 while ((ch = getopt(argc, argv, "fiv")) != -1)
89 switch (ch) {
90 case 'i':
91 iflg = 1;
92 fflg = 0;
93 break;
94 case 'f':
95 fflg = 1;
96 iflg = 0;
97 break;
98 case 'v':
99 vflg = 1;
100 break;
101 default:
102 usage();
103 }
104 argc -= optind;
105 argv += optind;
106
107 if (argc < 2)
108 usage();
109
110 /*
111 * If the stat on the target fails or the target isn't a directory,
112 * try the move. More than 2 arguments is an error in this case.
113 */
114 if (stat(argv[argc - 1], &sb) || !S_ISDIR(sb.st_mode)) {
115 if (argc > 2)
116 usage();
117 exit(do_move(argv[0], argv[1]));
118 }
119
120 /* It's a directory, move each file into it. */
121 if (strlen(argv[argc - 1]) > sizeof(path) - 1)
122 errx(1, "%s: destination pathname too long", *argv);
123 (void)strcpy(path, argv[argc - 1]);
124 baselen = strlen(path);
125 endp = &path[baselen];
126 if (!baselen || *(endp - 1) != '/') {
127 *endp++ = '/';
128 ++baselen;
129 }
130 for (rval = 0; --argc; ++argv) {
131 /*
132 * Find the last component of the source pathname. It
133 * may have trailing slashes.
134 */
135 p = *argv + strlen(*argv);
136 while (p != *argv && p[-1] == '/')
137 --p;
138 while (p != *argv && p[-1] != '/')
139 --p;
140
140 if ((baselen + (len = strlen(p))) >= MAXPATHLEN) {
141 if ((baselen + (len = strlen(p))) >= PATH_MAX) {
141 warnx("%s: destination pathname too long", *argv);
142 rval = 1;
143 } else {
144 memmove(endp, p, (size_t)len + 1);
145 if (do_move(*argv, path))
146 rval = 1;
147 }
148 }
149 exit(rval);
150}
151
152int
153do_move(from, to)
154 char *from, *to;
155{
156 struct stat sb;
157 int ask, ch, first;
158 char modep[15];
159
160 /*
161 * Check access. If interactive and file exists, ask user if it
162 * should be replaced. Otherwise if file exists but isn't writable
163 * make sure the user wants to clobber it.
164 */
165 if (!fflg && !access(to, F_OK)) {
166
167 /* prompt only if source exist */
168 if (lstat(from, &sb) == -1) {
169 warn("%s", from);
170 return (1);
171 }
172
173#define YESNO "(y/n [n]) "
174 ask = 0;
175 if (iflg) {
176 (void)fprintf(stderr, "overwrite %s? %s", to, YESNO);
177 ask = 1;
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);
184 ask = 1;
185 }
186 if (ask) {
187 first = ch = getchar();
188 while (ch != '\n' && ch != EOF)
189 ch = getchar();
190 if (first != 'y' && first != 'Y') {
191 (void)fprintf(stderr, "not overwritten\n");
192 return (0);
193 }
194 }
195 }
196 if (!rename(from, to)) {
197 if (vflg)
198 printf("%s -> %s\n", from, to);
199 return (0);
200 }
201
202 if (errno == EXDEV) {
203 struct statfs sfs;
142 warnx("%s: destination pathname too long", *argv);
143 rval = 1;
144 } else {
145 memmove(endp, p, (size_t)len + 1);
146 if (do_move(*argv, path))
147 rval = 1;
148 }
149 }
150 exit(rval);
151}
152
153int
154do_move(from, to)
155 char *from, *to;
156{
157 struct stat sb;
158 int ask, ch, first;
159 char modep[15];
160
161 /*
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.
165 */
166 if (!fflg && !access(to, F_OK)) {
167
168 /* prompt only if source exist */
169 if (lstat(from, &sb) == -1) {
170 warn("%s", from);
171 return (1);
172 }
173
174#define YESNO "(y/n [n]) "
175 ask = 0;
176 if (iflg) {
177 (void)fprintf(stderr, "overwrite %s? %s", to, YESNO);
178 ask = 1;
179 } else if (access(to, W_OK) && !stat(to, &sb)) {
180 strmode(sb.st_mode, modep);
181 (void)fprintf(stderr, "override %s%s%s/%s for %s? %s",
182 modep + 1, modep[9] == ' ' ? "" : " ",
183 user_from_uid((unsigned long)sb.st_uid, 0),
184 group_from_gid((unsigned long)sb.st_gid, 0), to, YESNO);
185 ask = 1;
186 }
187 if (ask) {
188 first = ch = getchar();
189 while (ch != '\n' && ch != EOF)
190 ch = getchar();
191 if (first != 'y' && first != 'Y') {
192 (void)fprintf(stderr, "not overwritten\n");
193 return (0);
194 }
195 }
196 }
197 if (!rename(from, to)) {
198 if (vflg)
199 printf("%s -> %s\n", from, to);
200 return (0);
201 }
202
203 if (errno == EXDEV) {
204 struct statfs sfs;
204 char path[MAXPATHLEN];
205 char path[PATH_MAX];
205
206 /* Can't mv(1) a mount point. */
207 if (realpath(from, path) == NULL) {
208 warnx("cannot resolve %s: %s", from, path);
209 return (1);
210 }
211 if (!statfs(path, &sfs) && !strcmp(path, sfs.f_mntonname)) {
212 warnx("cannot rename a mount point");
213 return (1);
214 }
215 } else {
216 warn("rename %s to %s", from, to);
217 return (1);
218 }
219
220 /*
221 * If rename fails because we're trying to cross devices, and
222 * it's a regular file, do the copy internally; otherwise, use
223 * cp and rm.
224 */
225 if (lstat(from, &sb)) {
226 warn("%s", from);
227 return (1);
228 }
229 return (S_ISREG(sb.st_mode) ?
230 fastcopy(from, to, &sb) : copy(from, to));
231}
232
233int
234fastcopy(from, to, sbp)
235 char *from, *to;
236 struct stat *sbp;
237{
238 struct timeval tval[2];
239 static u_int blen;
240 static char *bp;
241 mode_t oldmode;
242 register int nread, from_fd, to_fd;
243
244 if ((from_fd = open(from, O_RDONLY, 0)) < 0) {
245 warn("%s", from);
246 return (1);
247 }
248 if (blen < sbp->st_blksize) {
249 if (bp != NULL)
250 free(bp);
251 if ((bp = malloc((size_t)sbp->st_blksize)) == NULL) {
252 blen = 0;
253 warnx("malloc failed");
254 return (1);
255 }
256 blen = sbp->st_blksize;
257 }
258 while ((to_fd =
259 open(to, O_CREAT | O_EXCL | O_TRUNC | O_WRONLY, 0)) < 0) {
260 if (errno == EEXIST && unlink(to) == 0)
261 continue;
262 warn("%s", to);
263 (void)close(from_fd);
264 return (1);
265 }
266 while ((nread = read(from_fd, bp, (size_t)blen)) > 0)
267 if (write(to_fd, bp, (size_t)nread) != nread) {
268 warn("%s", to);
269 goto err;
270 }
271 if (nread < 0) {
272 warn("%s", from);
273err: if (unlink(to))
274 warn("%s: remove", to);
275 (void)close(from_fd);
276 (void)close(to_fd);
277 return (1);
278 }
279 (void)close(from_fd);
280
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)) {
286 warnx(
287"%s: owner/group changed; clearing suid/sgid (mode was 0%03o)",
288 to, oldmode);
289 sbp->st_mode &= ~(S_ISUID | S_ISGID);
290 }
291 }
292 if (fchmod(to_fd, sbp->st_mode))
293 warn("%s: set mode (was: 0%03o)", to, oldmode);
294 /*
295 * XXX
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.)
300 */
301 errno = 0;
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);
305
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);
311
312 if (close(to_fd)) {
313 warn("%s", to);
314 return (1);
315 }
316
317 if (unlink(from)) {
318 warn("%s: remove", from);
319 return (1);
320 }
321 if (vflg)
322 printf("%s -> %s\n", from, to);
323 return (0);
324}
325
326int
327copy(from, to)
328 char *from, *to;
329{
330 int pid, status;
331
332 if ((pid = fork()) == 0) {
333 execl(_PATH_CP, "mv", vflg ? "-PRpv" : "-PRp", from, to, NULL);
334 warn("%s", _PATH_CP);
335 _exit(1);
336 }
337 if (waitpid(pid, &status, 0) == -1) {
338 warn("%s: waitpid", _PATH_CP);
339 return (1);
340 }
341 if (!WIFEXITED(status)) {
342 warn("%s: did not terminate normally", _PATH_CP);
343 return (1);
344 }
345 if (WEXITSTATUS(status)) {
346 warn("%s: terminated with %d (non-zero) status",
347 _PATH_CP, WEXITSTATUS(status));
348 return (1);
349 }
350 if (!(pid = vfork())) {
351 execl(_PATH_RM, "mv", "-rf", from, NULL);
352 warn("%s", _PATH_RM);
353 _exit(1);
354 }
355 if (waitpid(pid, &status, 0) == -1) {
356 warn("%s: waitpid", _PATH_RM);
357 return (1);
358 }
359 if (!WIFEXITED(status)) {
360 warn("%s: did not terminate normally", _PATH_RM);
361 return (1);
362 }
363 if (WEXITSTATUS(status)) {
364 warn("%s: terminated with %d (non-zero) status",
365 _PATH_RM, WEXITSTATUS(status));
366 return (1);
367 }
368 return (0);
369}
370
371void
372usage()
373{
374
375 (void)fprintf(stderr, "%s\n%s\n",
376 "usage: mv [-f | -i] [-v] source target",
377 " mv [-f | -i] [-v] source ... directory");
378 exit(EX_USAGE);
379}
206
207 /* Can't mv(1) a mount point. */
208 if (realpath(from, path) == NULL) {
209 warnx("cannot resolve %s: %s", from, path);
210 return (1);
211 }
212 if (!statfs(path, &sfs) && !strcmp(path, sfs.f_mntonname)) {
213 warnx("cannot rename a mount point");
214 return (1);
215 }
216 } else {
217 warn("rename %s to %s", from, to);
218 return (1);
219 }
220
221 /*
222 * If rename fails because we're trying to cross devices, and
223 * it's a regular file, do the copy internally; otherwise, use
224 * cp and rm.
225 */
226 if (lstat(from, &sb)) {
227 warn("%s", from);
228 return (1);
229 }
230 return (S_ISREG(sb.st_mode) ?
231 fastcopy(from, to, &sb) : copy(from, to));
232}
233
234int
235fastcopy(from, to, sbp)
236 char *from, *to;
237 struct stat *sbp;
238{
239 struct timeval tval[2];
240 static u_int blen;
241 static char *bp;
242 mode_t oldmode;
243 register int nread, from_fd, to_fd;
244
245 if ((from_fd = open(from, O_RDONLY, 0)) < 0) {
246 warn("%s", from);
247 return (1);
248 }
249 if (blen < sbp->st_blksize) {
250 if (bp != NULL)
251 free(bp);
252 if ((bp = malloc((size_t)sbp->st_blksize)) == NULL) {
253 blen = 0;
254 warnx("malloc failed");
255 return (1);
256 }
257 blen = sbp->st_blksize;
258 }
259 while ((to_fd =
260 open(to, O_CREAT | O_EXCL | O_TRUNC | O_WRONLY, 0)) < 0) {
261 if (errno == EEXIST && unlink(to) == 0)
262 continue;
263 warn("%s", to);
264 (void)close(from_fd);
265 return (1);
266 }
267 while ((nread = read(from_fd, bp, (size_t)blen)) > 0)
268 if (write(to_fd, bp, (size_t)nread) != nread) {
269 warn("%s", to);
270 goto err;
271 }
272 if (nread < 0) {
273 warn("%s", from);
274err: if (unlink(to))
275 warn("%s: remove", to);
276 (void)close(from_fd);
277 (void)close(to_fd);
278 return (1);
279 }
280 (void)close(from_fd);
281
282 oldmode = sbp->st_mode & ALLPERMS;
283 if (fchown(to_fd, sbp->st_uid, sbp->st_gid)) {
284 warn("%s: set owner/group (was: %lu/%lu)", to,
285 (u_long)sbp->st_uid, (u_long)sbp->st_gid);
286 if (oldmode & (S_ISUID | S_ISGID)) {
287 warnx(
288"%s: owner/group changed; clearing suid/sgid (mode was 0%03o)",
289 to, oldmode);
290 sbp->st_mode &= ~(S_ISUID | S_ISGID);
291 }
292 }
293 if (fchmod(to_fd, sbp->st_mode))
294 warn("%s: set mode (was: 0%03o)", to, oldmode);
295 /*
296 * XXX
297 * NFS doesn't support chflags; ignore errors unless there's reason
298 * to believe we're losing bits. (Note, this still won't be right
299 * if the server supports flags and we were trying to *remove* flags
300 * on a file that we copied, i.e., that we didn't create.)
301 */
302 errno = 0;
303 if (fchflags(to_fd, (u_long)sbp->st_flags))
304 if (errno != EOPNOTSUPP || sbp->st_flags != 0)
305 warn("%s: set flags (was: 0%07o)", to, sbp->st_flags);
306
307 tval[0].tv_sec = sbp->st_atime;
308 tval[1].tv_sec = sbp->st_mtime;
309 tval[0].tv_usec = tval[1].tv_usec = 0;
310 if (utimes(to, tval))
311 warn("%s: set times", to);
312
313 if (close(to_fd)) {
314 warn("%s", to);
315 return (1);
316 }
317
318 if (unlink(from)) {
319 warn("%s: remove", from);
320 return (1);
321 }
322 if (vflg)
323 printf("%s -> %s\n", from, to);
324 return (0);
325}
326
327int
328copy(from, to)
329 char *from, *to;
330{
331 int pid, status;
332
333 if ((pid = fork()) == 0) {
334 execl(_PATH_CP, "mv", vflg ? "-PRpv" : "-PRp", from, to, NULL);
335 warn("%s", _PATH_CP);
336 _exit(1);
337 }
338 if (waitpid(pid, &status, 0) == -1) {
339 warn("%s: waitpid", _PATH_CP);
340 return (1);
341 }
342 if (!WIFEXITED(status)) {
343 warn("%s: did not terminate normally", _PATH_CP);
344 return (1);
345 }
346 if (WEXITSTATUS(status)) {
347 warn("%s: terminated with %d (non-zero) status",
348 _PATH_CP, WEXITSTATUS(status));
349 return (1);
350 }
351 if (!(pid = vfork())) {
352 execl(_PATH_RM, "mv", "-rf", from, NULL);
353 warn("%s", _PATH_RM);
354 _exit(1);
355 }
356 if (waitpid(pid, &status, 0) == -1) {
357 warn("%s: waitpid", _PATH_RM);
358 return (1);
359 }
360 if (!WIFEXITED(status)) {
361 warn("%s: did not terminate normally", _PATH_RM);
362 return (1);
363 }
364 if (WEXITSTATUS(status)) {
365 warn("%s: terminated with %d (non-zero) status",
366 _PATH_RM, WEXITSTATUS(status));
367 return (1);
368 }
369 return (0);
370}
371
372void
373usage()
374{
375
376 (void)fprintf(stderr, "%s\n%s\n",
377 "usage: mv [-f | -i] [-v] source target",
378 " mv [-f | -i] [-v] source ... directory");
379 exit(EX_USAGE);
380}