Commit | Line | Data |
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1f978f4c | 1 | /* |
4d2ae24a KB |
2 | * Copyright (c) 1988 The Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
5 | * This code is derived from software contributed to Berkeley by | |
6 | * David Hitz of Auspex Systems Inc. | |
7 | * | |
af359dea C |
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. | |
4d2ae24a KB |
35 | */ |
36 | ||
37 | #ifndef lint | |
38 | char copyright[] = | |
39 | "@(#) Copyright (c) 1988 The Regents of the University of California.\n\ | |
40 | All rights reserved.\n"; | |
41 | #endif /* not lint */ | |
42 | ||
43 | #ifndef lint | |
af359dea | 44 | static char sccsid[] = "@(#)cp.c 5.24 (Berkeley) 5/6/91"; |
4d2ae24a KB |
45 | #endif /* not lint */ |
46 | ||
47 | /* | |
48 | * cp copies source files to target files. | |
ae5e5236 | 49 | * |
9f329525 | 50 | * The global PATH_T structures "to" and "from" always contain paths to the |
4d2ae24a KB |
51 | * current source and target files, respectively. Since cp does not change |
52 | * directories, these paths can be either absolute or dot-realative. | |
ae5e5236 KB |
53 | * |
54 | * The basic algorithm is to initialize "to" and "from", and then call the | |
55 | * recursive copy() function to do the actual work. If "from" is a file, | |
56 | * copy copies the data. If "from" is a directory, copy creates the | |
57 | * corresponding "to" directory, and calls itself recursively on all of | |
58 | * the entries in the "from" directory. | |
1f978f4c KM |
59 | */ |
60 | ||
4d2ae24a | 61 | #include <sys/param.h> |
84592a94 | 62 | #include <sys/stat.h> |
0908a03a | 63 | #include <sys/time.h> |
1945b3da KB |
64 | #include <dirent.h> |
65 | #include <fcntl.h> | |
4d2ae24a | 66 | #include <errno.h> |
1945b3da KB |
67 | #include <unistd.h> |
68 | #include <stdio.h> | |
335a3e32 | 69 | #include <stdlib.h> |
6ebcb998 | 70 | #include <string.h> |
be970122 | 71 | #include "cp.h" |
ae5e5236 | 72 | |
be970122 KB |
73 | PATH_T from = { from.p_path, "" }; |
74 | PATH_T to = { to.p_path, "" }; | |
a783899b | 75 | |
1a4aed3b KB |
76 | uid_t myuid; |
77 | int exit_val, myumask; | |
3c3c3fc0 | 78 | int iflag, pflag, orflag, rflag; |
d57b5e76 | 79 | int (*statfcn)(); |
be970122 | 80 | char *buf, *progname; |
1a4aed3b | 81 | |
84592a94 | 82 | main(argc, argv) |
4d2ae24a KB |
83 | int argc; |
84 | char **argv; | |
84592a94 | 85 | { |
4bf6a19a | 86 | extern int optind; |
4d2ae24a KB |
87 | struct stat to_stat; |
88 | register int c, r; | |
335a3e32 KB |
89 | int symfollow, lstat(), stat(); |
90 | char *old_to, *p; | |
d57b5e76 KB |
91 | |
92 | /* | |
be970122 KB |
93 | * The utility cp(1) is used by mv(1) -- except for usage statements, |
94 | * print the "called as" program name. | |
d57b5e76 | 95 | */ |
be970122 | 96 | progname = (p = rindex(*argv,'/')) ? ++p : *argv; |
4d2ae24a | 97 | |
335a3e32 | 98 | symfollow = 0; |
a783899b KB |
99 | while ((c = getopt(argc, argv, "Rfhipr")) != EOF) { |
100 | switch ((char)c) { | |
101 | case 'f': | |
335a3e32 | 102 | iflag = 0; |
a783899b | 103 | break; |
0493752e KB |
104 | case 'h': |
105 | symfollow = 1; | |
106 | break; | |
4d2ae24a | 107 | case 'i': |
335a3e32 | 108 | iflag = isatty(fileno(stdin)); |
4d2ae24a KB |
109 | break; |
110 | case 'p': | |
335a3e32 | 111 | pflag = 1; |
4d2ae24a | 112 | break; |
4d2ae24a | 113 | case 'R': |
335a3e32 | 114 | rflag = 1; |
4d2ae24a | 115 | break; |
3c3c3fc0 KB |
116 | case 'r': |
117 | orflag = 1; | |
118 | break; | |
4d2ae24a KB |
119 | case '?': |
120 | default: | |
121 | usage(); | |
122 | break; | |
123 | } | |
84592a94 | 124 | } |
0493752e KB |
125 | argc -= optind; |
126 | argv += optind; | |
ae5e5236 | 127 | |
4d2ae24a KB |
128 | if (argc < 2) |
129 | usage(); | |
ae5e5236 | 130 | |
3c3c3fc0 KB |
131 | if (rflag && orflag) { |
132 | (void)fprintf(stderr, | |
133 | "cp: the -R and -r options are mutually exclusive.\n"); | |
134 | exit(1); | |
135 | } | |
136 | ||
4d2ae24a KB |
137 | buf = (char *)malloc(MAXBSIZE); |
138 | if (!buf) { | |
be970122 | 139 | (void)fprintf(stderr, "%s: out of space.\n", progname); |
4d2ae24a | 140 | exit(1); |
ae5e5236 KB |
141 | } |
142 | ||
1a4aed3b KB |
143 | myuid = getuid(); |
144 | ||
145 | /* copy the umask for explicit mode setting */ | |
146 | myumask = umask(0); | |
147 | (void)umask(myumask); | |
148 | ||
24e5a125 | 149 | /* consume last argument first. */ |
4d2ae24a | 150 | if (!path_set(&to, argv[--argc])) |
be970122 | 151 | exit(1); |
ae5e5236 | 152 | |
335a3e32 | 153 | statfcn = symfollow || !rflag ? stat : lstat; |
a68fe064 | 154 | |
ae5e5236 | 155 | /* |
4d2ae24a KB |
156 | * Cp has two distinct cases: |
157 | * | |
be970122 KB |
158 | * % cp [-rip] source target |
159 | * % cp [-rip] source1 ... directory | |
4d2ae24a KB |
160 | * |
161 | * In both cases, source can be either a file or a directory. | |
162 | * | |
163 | * In (1), the target becomes a copy of the source. That is, if the | |
164 | * source is a file, the target will be a file, and likewise for | |
165 | * directories. | |
166 | * | |
167 | * In (2), the real target is not directory, but "directory/source". | |
ae5e5236 | 168 | */ |
ae5e5236 | 169 | |
4d2ae24a KB |
170 | r = stat(to.p_path, &to_stat); |
171 | if (r == -1 && errno != ENOENT) { | |
24e5a125 | 172 | error(to.p_path); |
4d2ae24a KB |
173 | exit(1); |
174 | } | |
be970122 | 175 | if (r == -1 || !S_ISDIR(to_stat.st_mode)) { |
4d2ae24a KB |
176 | /* |
177 | * Case (1). Target is not a directory. | |
178 | */ | |
179 | if (argc > 1) { | |
180 | usage(); | |
181 | exit(1); | |
182 | } | |
183 | if (!path_set(&from, *argv)) | |
be970122 | 184 | exit(1); |
4d2ae24a KB |
185 | copy(); |
186 | } | |
187 | else { | |
188 | /* | |
189 | * Case (2). Target is a directory. | |
190 | */ | |
24e5a125 | 191 | for (;; ++argv) { |
be970122 KB |
192 | if (!path_set(&from, *argv)) { |
193 | exit_val = 1; | |
4d2ae24a | 194 | continue; |
be970122 | 195 | } |
4d2ae24a | 196 | old_to = path_append(&to, path_basename(&from), -1); |
be970122 KB |
197 | if (!old_to) { |
198 | exit_val = 1; | |
4d2ae24a | 199 | continue; |
be970122 | 200 | } |
4d2ae24a | 201 | copy(); |
24e5a125 KB |
202 | if (!--argc) |
203 | break; | |
4d2ae24a KB |
204 | path_restore(&to, old_to); |
205 | } | |
ae5e5236 | 206 | } |
4d2ae24a | 207 | exit(exit_val); |
84592a94 BJ |
208 | } |
209 | ||
a783899b | 210 | /* copy file or directory at "from" to "to". */ |
ae5e5236 | 211 | copy() |
84592a94 | 212 | { |
4d2ae24a | 213 | struct stat from_stat, to_stat; |
24e5a125 | 214 | int dne, statval; |
ae5e5236 | 215 | |
a68fe064 | 216 | statval = statfcn(from.p_path, &from_stat); |
0493752e | 217 | if (statval == -1) { |
24e5a125 | 218 | error(from.p_path); |
4d2ae24a KB |
219 | return; |
220 | } | |
0493752e KB |
221 | |
222 | /* not an error, but need to remember it happened */ | |
4d2ae24a | 223 | if (stat(to.p_path, &to_stat) == -1) |
24e5a125 KB |
224 | dne = 1; |
225 | else { | |
226 | if (to_stat.st_dev == from_stat.st_dev && | |
227 | to_stat.st_ino == from_stat.st_ino) { | |
228 | (void)fprintf(stderr, | |
d57b5e76 | 229 | "%s: %s and %s are identical (not copied).\n", |
be970122 | 230 | progname, to.p_path, from.p_path); |
24e5a125 KB |
231 | exit_val = 1; |
232 | return; | |
233 | } | |
234 | dne = 0; | |
84592a94 | 235 | } |
ae5e5236 | 236 | |
be970122 | 237 | switch(from_stat.st_mode & S_IFMT) { |
a783899b | 238 | case S_IFLNK: |
24e5a125 | 239 | copy_link(!dne); |
0493752e | 240 | return; |
a783899b | 241 | case S_IFDIR: |
3c3c3fc0 | 242 | if (!rflag && !orflag) { |
4d2ae24a | 243 | (void)fprintf(stderr, |
d57b5e76 | 244 | "%s: %s is a directory (not copied).\n", |
be970122 | 245 | progname, from.p_path); |
4d2ae24a KB |
246 | exit_val = 1; |
247 | return; | |
248 | } | |
24e5a125 KB |
249 | if (dne) { |
250 | /* | |
251 | * If the directory doesn't exist, create the new | |
252 | * one with the from file mode plus owner RWX bits, | |
253 | * modified by the umask. Trade-off between being | |
254 | * able to write the directory (if from directory is | |
255 | * 555) and not causing a permissions race. If the | |
256 | * umask blocks owner writes cp fails. | |
257 | */ | |
258 | if (mkdir(to.p_path, from_stat.st_mode|S_IRWXU) < 0) { | |
259 | error(to.p_path); | |
4d2ae24a KB |
260 | return; |
261 | } | |
4d2ae24a | 262 | } |
be970122 | 263 | else if (!S_ISDIR(to_stat.st_mode) != S_IFDIR) { |
d57b5e76 | 264 | (void)fprintf(stderr, "%s: %s: not a directory.\n", |
be970122 | 265 | progname, to.p_path); |
4d2ae24a KB |
266 | return; |
267 | } | |
268 | copy_dir(); | |
24e5a125 | 269 | /* |
9ac69c84 KB |
270 | * If not -p and directory didn't exist, set it to be the |
271 | * same as the from directory, umodified by the umask; | |
272 | * arguably wrong, but it's been that way forever. | |
24e5a125 | 273 | */ |
335a3e32 | 274 | if (pflag) |
9ac69c84 KB |
275 | setfile(&from_stat, 0); |
276 | else if (dne) | |
24e5a125 | 277 | (void)chmod(to.p_path, from_stat.st_mode); |
3c3c3fc0 | 278 | return; |
a783899b KB |
279 | case S_IFCHR: |
280 | case S_IFBLK: | |
335a3e32 | 281 | if (rflag) { |
3c66b1ab | 282 | copy_special(&from_stat, !dne); |
a783899b KB |
283 | return; |
284 | } | |
3c3c3fc0 KB |
285 | break; |
286 | case S_IFIFO: | |
287 | if (rflag) { | |
288 | copy_fifo(&from_stat, !dne); | |
289 | return; | |
290 | } | |
291 | break; | |
5f89032b | 292 | } |
3c3c3fc0 | 293 | copy_file(&from_stat, dne); |
ae5e5236 KB |
294 | } |
295 | ||
1a4aed3b | 296 | copy_file(fs, dne) |
24e5a125 | 297 | struct stat *fs; |
1a4aed3b | 298 | int dne; |
ae5e5236 | 299 | { |
a783899b | 300 | register int from_fd, to_fd, rcount, wcount; |
1a4aed3b | 301 | struct stat to_stat; |
4d2ae24a | 302 | |
24e5a125 KB |
303 | if ((from_fd = open(from.p_path, O_RDONLY, 0)) == -1) { |
304 | error(from.p_path); | |
305 | return; | |
4d2ae24a KB |
306 | } |
307 | ||
308 | /* | |
1a4aed3b KB |
309 | * If the file exists and we're interactive, verify with the user. |
310 | * If the file DNE, set the mode to be the from file, minus setuid | |
311 | * bits, modified by the umask; arguably wrong, but it makes copying | |
312 | * executables work right and it's been that way forever. (The | |
313 | * other choice is 666 or'ed with the execute bits on the from file | |
314 | * modified by the umask.) | |
4d2ae24a | 315 | */ |
1a4aed3b | 316 | if (!dne) { |
335a3e32 | 317 | if (iflag) { |
1a4aed3b KB |
318 | int checkch, ch; |
319 | ||
320 | (void)fprintf(stderr, "overwrite %s? ", to.p_path); | |
321 | checkch = ch = getchar(); | |
322 | while (ch != '\n' && ch != EOF) | |
323 | ch = getchar(); | |
324 | if (checkch != 'y') { | |
325 | (void)close(from_fd); | |
326 | return; | |
327 | } | |
328 | } | |
329 | to_fd = open(to.p_path, O_WRONLY|O_TRUNC, 0); | |
330 | } else | |
331 | to_fd = open(to.p_path, O_WRONLY|O_CREAT|O_TRUNC, | |
332 | fs->st_mode & ~(S_ISUID|S_ISGID)); | |
ae5e5236 | 333 | |
4d2ae24a | 334 | if (to_fd == -1) { |
24e5a125 | 335 | error(to.p_path); |
4d2ae24a | 336 | (void)close(from_fd); |
24e5a125 | 337 | return; |
ae5e5236 KB |
338 | } |
339 | ||
4d2ae24a KB |
340 | while ((rcount = read(from_fd, buf, MAXBSIZE)) > 0) { |
341 | wcount = write(to_fd, buf, rcount); | |
342 | if (rcount != wcount || wcount == -1) { | |
24e5a125 | 343 | error(to.p_path); |
4d2ae24a KB |
344 | break; |
345 | } | |
ae5e5236 | 346 | } |
24e5a125 KB |
347 | if (rcount < 0) |
348 | error(from.p_path); | |
335a3e32 | 349 | if (pflag) |
24e5a125 | 350 | setfile(fs, to_fd); |
1a4aed3b | 351 | /* |
3c3c3fc0 KB |
352 | * If the source was setuid or setgid, lose the bits unless the |
353 | * copy is owned by the same user and group. | |
1a4aed3b | 354 | */ |
3c3c3fc0 KB |
355 | else if (fs->st_mode & (S_ISUID|S_ISGID) && fs->st_uid == myuid) |
356 | if (fstat(to_fd, &to_stat)) | |
357 | error(to.p_path); | |
358 | #define RETAINBITS (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO) | |
359 | else if (fs->st_gid == to_stat.st_gid && fchmod(to_fd, | |
360 | fs->st_mode & RETAINBITS & ~myumask)) | |
1a4aed3b | 361 | error(to.p_path); |
4d2ae24a | 362 | (void)close(from_fd); |
af359dea C |
363 | if (close(to_fd)) |
364 | error(to.p_path); | |
4d2ae24a | 365 | } |
ae5e5236 | 366 | |
4d2ae24a KB |
367 | copy_dir() |
368 | { | |
369 | struct stat from_stat; | |
1945b3da | 370 | struct dirent *dp, **dir_list; |
24e5a125 KB |
371 | register int dir_cnt, i; |
372 | char *old_from, *old_to; | |
4d2ae24a KB |
373 | |
374 | dir_cnt = scandir(from.p_path, &dir_list, NULL, NULL); | |
375 | if (dir_cnt == -1) { | |
d57b5e76 | 376 | (void)fprintf(stderr, "%s: can't read directory %s.\n", |
be970122 | 377 | progname, from.p_path); |
4d2ae24a | 378 | exit_val = 1; |
ae5e5236 KB |
379 | } |
380 | ||
24e5a125 KB |
381 | /* |
382 | * Instead of handling directory entries in the order they appear | |
383 | * on disk, do non-directory files before directory files. | |
384 | * There are two reasons to do directories last. The first is | |
385 | * efficiency. Files tend to be in the same cylinder group as | |
386 | * their parent, whereas directories tend not to be. Copying files | |
387 | * all at once reduces seeking. Second, deeply nested tree's | |
388 | * could use up all the file descriptors if we didn't close one | |
389 | * directory before recursivly starting on the next. | |
390 | */ | |
391 | /* copy files */ | |
4d2ae24a KB |
392 | for (i = 0; i < dir_cnt; ++i) { |
393 | dp = dir_list[i]; | |
394 | if (dp->d_namlen <= 2 && dp->d_name[0] == '.' | |
24e5a125 KB |
395 | && (dp->d_name[1] == NULL || dp->d_name[1] == '.')) |
396 | goto done; | |
4d2ae24a | 397 | old_from = path_append(&from, dp->d_name, (int)dp->d_namlen); |
be970122 KB |
398 | if (!old_from) { |
399 | exit_val = 1; | |
24e5a125 | 400 | goto done; |
be970122 | 401 | } |
4d2ae24a | 402 | |
a68fe064 | 403 | if (statfcn(from.p_path, &from_stat) < 0) { |
24e5a125 KB |
404 | error(dp->d_name); |
405 | path_restore(&from, old_from); | |
406 | goto done; | |
407 | } | |
be970122 | 408 | if (S_ISDIR(from_stat.st_mode)) { |
4d2ae24a KB |
409 | path_restore(&from, old_from); |
410 | continue; | |
411 | } | |
24e5a125 KB |
412 | old_to = path_append(&to, dp->d_name, (int)dp->d_namlen); |
413 | if (old_to) { | |
4d2ae24a KB |
414 | copy(); |
415 | path_restore(&to, old_to); | |
be970122 KB |
416 | } else |
417 | exit_val = 1; | |
4d2ae24a | 418 | path_restore(&from, old_from); |
24e5a125 | 419 | done: dir_list[i] = NULL; |
335a3e32 | 420 | (void)free((void *)dp); |
5f89032b | 421 | } |
ae5e5236 | 422 | |
24e5a125 | 423 | /* copy directories */ |
4d2ae24a KB |
424 | for (i = 0; i < dir_cnt; ++i) { |
425 | dp = dir_list[i]; | |
426 | if (!dp) | |
427 | continue; | |
428 | old_from = path_append(&from, dp->d_name, (int) dp->d_namlen); | |
429 | if (!old_from) { | |
be970122 | 430 | exit_val = 1; |
335a3e32 | 431 | (void)free((void *)dp); |
4d2ae24a KB |
432 | continue; |
433 | } | |
434 | old_to = path_append(&to, dp->d_name, (int) dp->d_namlen); | |
435 | if (!old_to) { | |
be970122 | 436 | exit_val = 1; |
335a3e32 | 437 | (void)free((void *)dp); |
4d2ae24a KB |
438 | path_restore(&from, old_from); |
439 | continue; | |
440 | } | |
441 | copy(); | |
335a3e32 | 442 | free((void *)dp); |
4d2ae24a KB |
443 | path_restore(&from, old_from); |
444 | path_restore(&to, old_to); | |
5f89032b | 445 | } |
335a3e32 | 446 | free((void *)dir_list); |
5f89032b | 447 | } |
1a4b831f | 448 | |
0493752e KB |
449 | copy_link(exists) |
450 | int exists; | |
451 | { | |
14dc7750 | 452 | int len; |
0493752e KB |
453 | char link[MAXPATHLEN]; |
454 | ||
14dc7750 | 455 | if ((len = readlink(from.p_path, link, sizeof(link))) == -1) { |
24e5a125 | 456 | error(from.p_path); |
0493752e KB |
457 | return; |
458 | } | |
14dc7750 | 459 | link[len] = '\0'; |
0493752e | 460 | if (exists && unlink(to.p_path)) { |
24e5a125 | 461 | error(to.p_path); |
0493752e KB |
462 | return; |
463 | } | |
464 | if (symlink(link, to.p_path)) { | |
24e5a125 | 465 | error(link); |
0493752e KB |
466 | return; |
467 | } | |
468 | } | |
469 | ||
3c3c3fc0 KB |
470 | copy_fifo(from_stat, exists) |
471 | struct stat *from_stat; | |
472 | int exists; | |
473 | { | |
474 | if (exists && unlink(to.p_path)) { | |
475 | error(to.p_path); | |
476 | return; | |
477 | } | |
478 | if (mkfifo(to.p_path, from_stat->st_mode)) { | |
479 | error(to.p_path); | |
480 | return; | |
481 | } | |
482 | if (pflag) | |
483 | setfile(from_stat, 0); | |
484 | } | |
485 | ||
3c66b1ab KB |
486 | copy_special(from_stat, exists) |
487 | struct stat *from_stat; | |
488 | int exists; | |
a783899b | 489 | { |
3c66b1ab | 490 | if (exists && unlink(to.p_path)) { |
24e5a125 | 491 | error(to.p_path); |
a783899b KB |
492 | return; |
493 | } | |
494 | if (mknod(to.p_path, from_stat->st_mode, from_stat->st_rdev)) { | |
24e5a125 | 495 | error(to.p_path); |
a783899b KB |
496 | return; |
497 | } | |
3c3c3fc0 KB |
498 | if (pflag) |
499 | setfile(from_stat, 0); | |
a783899b KB |
500 | } |
501 | ||
24e5a125 KB |
502 | setfile(fs, fd) |
503 | register struct stat *fs; | |
504 | int fd; | |
a783899b KB |
505 | { |
506 | static struct timeval tv[2]; | |
12c865aa | 507 | char path[100]; |
a783899b | 508 | |
3ca1480b KB |
509 | fs->st_mode &= S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO; |
510 | ||
a783899b KB |
511 | tv[0].tv_sec = fs->st_atime; |
512 | tv[1].tv_sec = fs->st_mtime; | |
12c865aa KB |
513 | if (utimes(to.p_path, tv)) { |
514 | (void)snprintf(path, sizeof(path), "utimes: %s", to.p_path); | |
515 | error(path); | |
516 | } | |
24e5a125 | 517 | /* |
c942f008 | 518 | * Changing the ownership probably won't succeed, unless we're root |
3ca1480b KB |
519 | * or POSIX_CHOWN_RESTRICTED is not set. Set uid/gid before setting |
520 | * the mode; current BSD behavior is to remove all setuid bits on | |
521 | * chown. If chown fails, lose setuid/setgid bits. | |
24e5a125 | 522 | */ |
3ca1480b KB |
523 | if (fd ? fchown(fd, fs->st_uid, fs->st_gid) : |
524 | chown(to.p_path, fs->st_uid, fs->st_gid)) { | |
12c865aa KB |
525 | if (errno != EPERM) { |
526 | (void)snprintf(path, sizeof(path), | |
527 | "chown: %s", to.p_path); | |
528 | error(path); | |
529 | } | |
3ca1480b | 530 | fs->st_mode &= ~(S_ISUID|S_ISGID); |
1a4aed3b | 531 | } |
12c865aa KB |
532 | if (fd ? fchmod(fd, fs->st_mode) : chmod(to.p_path, fs->st_mode)) { |
533 | (void)snprintf(path, sizeof(path), "chown: %s", to.p_path); | |
534 | error(path); | |
535 | } | |
1a4aed3b KB |
536 | } |
537 | ||
24e5a125 KB |
538 | error(s) |
539 | char *s; | |
0908a03a | 540 | { |
4d2ae24a | 541 | exit_val = 1; |
be970122 | 542 | (void)fprintf(stderr, "%s: %s: %s\n", progname, s, strerror(errno)); |
4d2ae24a | 543 | } |
1a4b831f | 544 | |
4d2ae24a KB |
545 | usage() |
546 | { | |
547 | (void)fprintf(stderr, | |
3c3c3fc0 | 548 | "usage: cp [-Rfhip] src target;\n or: cp [-Rfhip] src1 ... srcN directory\n"); |
4d2ae24a | 549 | exit(1); |
1a4b831f | 550 | } |