Commit | Line | Data |
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1960e228 | 1 | /* -*- c-file-style: "linux" -*- |
5cb37436 WD |
2 | * |
3 | * Copyright (C) 1996-2000 by Andrew Tridgell | |
0ecfbf27 MP |
4 | * Copyright (C) Paul Mackerras 1996 |
5 | * Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org> | |
5cb37436 | 6 | * |
0ecfbf27 MP |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
5cb37436 | 11 | * |
0ecfbf27 MP |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
5cb37436 | 16 | * |
0ecfbf27 MP |
17 | * You should have received a copy of the GNU General Public License |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | */ | |
c627d613 | 21 | |
ac13ad10 | 22 | /** |
0ecfbf27 | 23 | * @file |
ac13ad10 | 24 | * |
5cb37436 | 25 | * Utilities used in rsync |
ac13ad10 | 26 | **/ |
c627d613 | 27 | |
c627d613 AT |
28 | #include "rsync.h" |
29 | ||
c7c11a0d | 30 | extern int verbose; |
bc6ebcd2 WD |
31 | extern int dry_run; |
32 | extern int module_id; | |
33 | extern int modify_window; | |
a7260c40 | 34 | extern char *partial_dir; |
bf6dcd17 | 35 | extern struct exclude_list_struct server_exclude_list; |
c7c11a0d | 36 | |
0ecfbf27 MP |
37 | int sanitize_paths = 0; |
38 | ||
39 | ||
f0359dd0 | 40 | |
ac13ad10 | 41 | /** |
0ecfbf27 MP |
42 | * Set a fd into nonblocking mode |
43 | **/ | |
f0359dd0 AT |
44 | void set_nonblocking(int fd) |
45 | { | |
46 | int val; | |
47 | ||
0ecfbf27 | 48 | if ((val = fcntl(fd, F_GETFL, 0)) == -1) |
f0359dd0 AT |
49 | return; |
50 | if (!(val & NONBLOCK_FLAG)) { | |
51 | val |= NONBLOCK_FLAG; | |
52 | fcntl(fd, F_SETFL, val); | |
53 | } | |
54 | } | |
55 | ||
ac13ad10 | 56 | /** |
0ecfbf27 MP |
57 | * Set a fd into blocking mode |
58 | **/ | |
36349ea0 AT |
59 | void set_blocking(int fd) |
60 | { | |
61 | int val; | |
62 | ||
0ecfbf27 | 63 | if ((val = fcntl(fd, F_GETFL, 0)) == -1) |
36349ea0 AT |
64 | return; |
65 | if (val & NONBLOCK_FLAG) { | |
66 | val &= ~NONBLOCK_FLAG; | |
67 | fcntl(fd, F_SETFL, val); | |
68 | } | |
69 | } | |
70 | ||
f0359dd0 | 71 | |
ac13ad10 | 72 | /** |
0ecfbf27 MP |
73 | * Create a file descriptor pair - like pipe() but use socketpair if |
74 | * possible (because of blocking issues on pipes). | |
5cb37436 | 75 | * |
0ecfbf27 | 76 | * Always set non-blocking. |
f0359dd0 | 77 | */ |
08f15335 AT |
78 | int fd_pair(int fd[2]) |
79 | { | |
f0359dd0 AT |
80 | int ret; |
81 | ||
08f15335 | 82 | #if HAVE_SOCKETPAIR |
f0359dd0 | 83 | ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fd); |
08f15335 | 84 | #else |
f0359dd0 | 85 | ret = pipe(fd); |
08f15335 | 86 | #endif |
f0359dd0 AT |
87 | |
88 | if (ret == 0) { | |
89 | set_nonblocking(fd[0]); | |
90 | set_nonblocking(fd[1]); | |
91 | } | |
0ecfbf27 | 92 | |
f0359dd0 | 93 | return ret; |
08f15335 AT |
94 | } |
95 | ||
96 | ||
0ecfbf27 | 97 | void print_child_argv(char **cmd) |
5ad0e46f | 98 | { |
1bbd10fe | 99 | rprintf(FINFO, "opening connection using "); |
5ad0e46f MP |
100 | for (; *cmd; cmd++) { |
101 | /* Look for characters that ought to be quoted. This | |
102 | * is not a great quoting algorithm, but it's | |
103 | * sufficient for a log message. */ | |
104 | if (strspn(*cmd, "abcdefghijklmnopqrstuvwxyz" | |
105 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
106 | "0123456789" | |
107 | ",.-_=+@/") != strlen(*cmd)) { | |
108 | rprintf(FINFO, "\"%s\" ", *cmd); | |
109 | } else { | |
110 | rprintf(FINFO, "%s ", *cmd); | |
111 | } | |
112 | } | |
113 | rprintf(FINFO, "\n"); | |
114 | } | |
115 | ||
116 | ||
c627d613 AT |
117 | void out_of_memory(char *str) |
118 | { | |
c284f34a WD |
119 | rprintf(FERROR, "ERROR: out of memory in %s\n", str); |
120 | exit_cleanup(RERR_MALLOC); | |
575f2fca AT |
121 | } |
122 | ||
123 | void overflow(char *str) | |
124 | { | |
c284f34a WD |
125 | rprintf(FERROR, "ERROR: buffer overflow in %s\n", str); |
126 | exit_cleanup(RERR_MALLOC); | |
c627d613 AT |
127 | } |
128 | ||
129 | ||
c627d613 | 130 | |
404e813c | 131 | int set_modtime(char *fname, time_t modtime) |
c627d613 | 132 | { |
404e813c MP |
133 | if (dry_run) |
134 | return 0; | |
135 | ||
136 | if (verbose > 2) { | |
137 | rprintf(FINFO, "set modtime of %s to (%ld) %s", | |
b5bd5542 | 138 | fname, (long)modtime, |
404e813c MP |
139 | asctime(localtime(&modtime))); |
140 | } | |
5cb37436 | 141 | |
31e12522 | 142 | { |
1e9f155a | 143 | #ifdef HAVE_UTIMBUF |
5cb37436 | 144 | struct utimbuf tbuf; |
31e12522 AT |
145 | tbuf.actime = time(NULL); |
146 | tbuf.modtime = modtime; | |
147 | return utime(fname,&tbuf); | |
c627d613 | 148 | #elif defined(HAVE_UTIME) |
31e12522 AT |
149 | time_t t[2]; |
150 | t[0] = time(NULL); | |
151 | t[1] = modtime; | |
152 | return utime(fname,t); | |
c627d613 | 153 | #else |
31e12522 AT |
154 | struct timeval t[2]; |
155 | t[0].tv_sec = time(NULL); | |
156 | t[0].tv_usec = 0; | |
157 | t[1].tv_sec = modtime; | |
158 | t[1].tv_usec = 0; | |
159 | return utimes(fname,t); | |
c627d613 | 160 | #endif |
31e12522 | 161 | } |
c627d613 | 162 | } |
94481d91 | 163 | |
720b47f2 | 164 | |
ac13ad10 MP |
165 | /** |
166 | Create any necessary directories in fname. Unfortunately we don't know | |
167 | what perms to give the directory when this is called so we need to rely | |
168 | on the umask | |
169 | **/ | |
0ecfbf27 | 170 | int create_directory_path(char *fname, int base_umask) |
6574b4f7 | 171 | { |
6574b4f7 AT |
172 | char *p; |
173 | ||
c284f34a WD |
174 | while (*fname == '/') |
175 | fname++; | |
176 | while (strncmp(fname, "./", 2) == 0) | |
177 | fname += 2; | |
6574b4f7 AT |
178 | |
179 | p = fname; | |
c284f34a | 180 | while ((p = strchr(p,'/')) != NULL) { |
6574b4f7 | 181 | *p = 0; |
5cb37436 | 182 | do_mkdir(fname, 0777 & ~base_umask); |
6574b4f7 AT |
183 | *p = '/'; |
184 | p++; | |
185 | } | |
186 | return 0; | |
187 | } | |
950ab32d AT |
188 | |
189 | ||
ac13ad10 MP |
190 | /** |
191 | * Write @p len bytes at @p ptr to descriptor @p desc, retrying if | |
192 | * interrupted. | |
193 | * | |
194 | * @retval len upon success | |
195 | * | |
196 | * @retval <0 write's (negative) error code | |
197 | * | |
198 | * Derived from GNU C's cccp.c. | |
199 | */ | |
9dd891bb | 200 | static int full_write(int desc, char *ptr, size_t len) |
950ab32d AT |
201 | { |
202 | int total_written; | |
5cb37436 | 203 | |
950ab32d AT |
204 | total_written = 0; |
205 | while (len > 0) { | |
5c1b7bfd | 206 | int written = write(desc, ptr, len); |
950ab32d | 207 | if (written < 0) { |
950ab32d AT |
208 | if (errno == EINTR) |
209 | continue; | |
950ab32d AT |
210 | return written; |
211 | } | |
212 | total_written += written; | |
213 | ptr += written; | |
214 | len -= written; | |
215 | } | |
216 | return total_written; | |
217 | } | |
218 | ||
950ab32d | 219 | |
ac13ad10 MP |
220 | /** |
221 | * Read @p len bytes at @p ptr from descriptor @p desc, retrying if | |
222 | * interrupted. | |
223 | * | |
224 | * @retval >0 the actual number of bytes read | |
225 | * | |
226 | * @retval 0 for EOF | |
227 | * | |
228 | * @retval <0 for an error. | |
229 | * | |
230 | * Derived from GNU C's cccp.c. */ | |
9dd891bb | 231 | static int safe_read(int desc, char *ptr, size_t len) |
950ab32d AT |
232 | { |
233 | int n_chars; | |
5cb37436 | 234 | |
9dd891bb | 235 | if (len == 0) |
950ab32d | 236 | return len; |
5cb37436 | 237 | |
950ab32d AT |
238 | do { |
239 | n_chars = read(desc, ptr, len); | |
240 | } while (n_chars < 0 && errno == EINTR); | |
5cb37436 | 241 | |
950ab32d AT |
242 | return n_chars; |
243 | } | |
244 | ||
245 | ||
ac13ad10 MP |
246 | /** Copy a file. |
247 | * | |
248 | * This is used in conjunction with the --temp-dir option */ | |
950ab32d AT |
249 | int copy_file(char *source, char *dest, mode_t mode) |
250 | { | |
251 | int ifd; | |
252 | int ofd; | |
253 | char buf[1024 * 8]; | |
254 | int len; /* Number of bytes read into `buf'. */ | |
255 | ||
8c9fd200 | 256 | ifd = do_open(source, O_RDONLY, 0); |
950ab32d | 257 | if (ifd == -1) { |
d62bcc17 | 258 | rsyserr(FERROR, errno, "open %s", full_fname(source)); |
950ab32d AT |
259 | return -1; |
260 | } | |
261 | ||
c7c11a0d | 262 | if (robust_unlink(dest) && errno != ENOENT) { |
d62bcc17 | 263 | rsyserr(FERROR, errno, "unlink %s", full_fname(dest)); |
950ab32d AT |
264 | return -1; |
265 | } | |
266 | ||
31e12522 | 267 | ofd = do_open(dest, O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, mode); |
c46ded46 | 268 | if (ofd == -1) { |
d62bcc17 | 269 | rsyserr(FERROR, errno, "open %s", full_fname(dest)); |
950ab32d AT |
270 | close(ifd); |
271 | return -1; | |
272 | } | |
273 | ||
5cb37436 | 274 | while ((len = safe_read(ifd, buf, sizeof buf)) > 0) { |
950ab32d | 275 | if (full_write(ofd, buf, len) < 0) { |
d62bcc17 | 276 | rsyserr(FERROR, errno, "write %s", full_fname(dest)); |
950ab32d AT |
277 | close(ifd); |
278 | close(ofd); | |
279 | return -1; | |
280 | } | |
281 | } | |
282 | ||
8b602edd | 283 | if (len < 0) { |
d62bcc17 | 284 | rsyserr(FERROR, errno, "read %s", full_fname(source)); |
8b602edd WD |
285 | close(ifd); |
286 | close(ofd); | |
287 | return -1; | |
288 | } | |
289 | ||
9f27cd8c | 290 | if (close(ifd) < 0) { |
d62bcc17 WD |
291 | rsyserr(FINFO, errno, "close failed on %s", |
292 | full_fname(source)); | |
9f27cd8c WD |
293 | } |
294 | ||
295 | if (close(ofd) < 0) { | |
d62bcc17 WD |
296 | rsyserr(FERROR, errno, "close failed on %s", |
297 | full_fname(dest)); | |
9f27cd8c WD |
298 | return -1; |
299 | } | |
950ab32d | 300 | |
950ab32d AT |
301 | return 0; |
302 | } | |
feaa89c4 | 303 | |
c7c11a0d DD |
304 | /* MAX_RENAMES should be 10**MAX_RENAMES_DIGITS */ |
305 | #define MAX_RENAMES_DIGITS 3 | |
306 | #define MAX_RENAMES 1000 | |
307 | ||
ac13ad10 | 308 | /** |
b4235b31 MP |
309 | * Robust unlink: some OS'es (HPUX) refuse to unlink busy files, so |
310 | * rename to <path>/.rsyncNNN instead. | |
311 | * | |
312 | * Note that successive rsync runs will shuffle the filenames around a | |
313 | * bit as long as the file is still busy; this is because this function | |
314 | * does not know if the unlink call is due to a new file coming in, or | |
315 | * --delete trying to remove old .rsyncNNN files, hence it renames it | |
316 | * each time. | |
317 | **/ | |
c7c11a0d DD |
318 | int robust_unlink(char *fname) |
319 | { | |
320 | #ifndef ETXTBSY | |
321 | return do_unlink(fname); | |
322 | #else | |
323 | static int counter = 1; | |
324 | int rc, pos, start; | |
325 | char path[MAXPATHLEN]; | |
326 | ||
327 | rc = do_unlink(fname); | |
c284f34a | 328 | if (rc == 0 || errno != ETXTBSY) |
c7c11a0d DD |
329 | return rc; |
330 | ||
c284f34a WD |
331 | if ((pos = strlcpy(path, fname, MAXPATHLEN)) >= MAXPATHLEN) |
332 | pos = MAXPATHLEN - 1; | |
c7c11a0d | 333 | |
c284f34a WD |
334 | while (pos > 0 && path[pos-1] != '/') |
335 | pos--; | |
5cb37436 | 336 | pos += strlcpy(path+pos, ".rsync", MAXPATHLEN-pos); |
c7c11a0d DD |
337 | |
338 | if (pos > (MAXPATHLEN-MAX_RENAMES_DIGITS-1)) { | |
339 | errno = ETXTBSY; | |
340 | return -1; | |
341 | } | |
342 | ||
343 | /* start where the last one left off to reduce chance of clashes */ | |
344 | start = counter; | |
345 | do { | |
346 | sprintf(&path[pos], "%03d", counter); | |
347 | if (++counter >= MAX_RENAMES) | |
348 | counter = 1; | |
c284f34a | 349 | } while ((rc = access(path, 0)) == 0 && counter != start); |
c7c11a0d | 350 | |
4791825d | 351 | if (verbose > 0) { |
c7c11a0d | 352 | rprintf(FINFO,"renaming %s to %s because of text busy\n", |
4791825d WD |
353 | fname, path); |
354 | } | |
c7c11a0d DD |
355 | |
356 | /* maybe we should return rename()'s exit status? Nah. */ | |
357 | if (do_rename(fname, path) != 0) { | |
358 | errno = ETXTBSY; | |
359 | return -1; | |
360 | } | |
361 | return 0; | |
362 | #endif | |
363 | } | |
364 | ||
62c9e6b3 WD |
365 | /* Returns 0 on success, -1 on most errors, and -2 if we got an error |
366 | * trying to copy the file across file systems. */ | |
367 | int robust_rename(char *from, char *to, int mode) | |
c7c11a0d | 368 | { |
62c9e6b3 WD |
369 | int tries = 4; |
370 | ||
371 | while (tries--) { | |
372 | if (do_rename(from, to) == 0) | |
373 | return 0; | |
374 | ||
375 | switch (errno) { | |
376 | #ifdef ETXTBSY | |
377 | case ETXTBSY: | |
378 | if (robust_unlink(to) != 0) | |
379 | return -1; | |
380 | break; | |
c7c11a0d | 381 | #endif |
62c9e6b3 WD |
382 | case EXDEV: |
383 | if (copy_file(from, to, mode) != 0) | |
384 | return -2; | |
385 | do_unlink(from); | |
386 | return 0; | |
387 | default: | |
388 | return -1; | |
389 | } | |
390 | } | |
391 | return -1; | |
feaa89c4 | 392 | } |
3ba62a83 AT |
393 | |
394 | ||
395 | static pid_t all_pids[10]; | |
396 | static int num_pids; | |
397 | ||
4cf64834 | 398 | /** Fork and record the pid of the child. **/ |
3ba62a83 AT |
399 | pid_t do_fork(void) |
400 | { | |
401 | pid_t newpid = fork(); | |
5cb37436 | 402 | |
4cf64834 | 403 | if (newpid != 0 && newpid != -1) { |
3ba62a83 AT |
404 | all_pids[num_pids++] = newpid; |
405 | } | |
406 | return newpid; | |
407 | } | |
408 | ||
4cf64834 MP |
409 | /** |
410 | * Kill all children. | |
411 | * | |
412 | * @todo It would be kind of nice to make sure that they are actually | |
413 | * all our children before we kill them, because their pids may have | |
414 | * been recycled by some other process. Perhaps when we wait for a | |
415 | * child, we should remove it from this array. Alternatively we could | |
416 | * perhaps use process groups, but I think that would not work on | |
417 | * ancient Unix versions that don't support them. | |
418 | **/ | |
3ba62a83 AT |
419 | void kill_all(int sig) |
420 | { | |
421 | int i; | |
4cf64834 MP |
422 | |
423 | for (i = 0; i < num_pids; i++) { | |
424 | /* Let's just be a little careful where we | |
425 | * point that gun, hey? See kill(2) for the | |
426 | * magic caused by negative values. */ | |
427 | pid_t p = all_pids[i]; | |
428 | ||
429 | if (p == getpid()) | |
430 | continue; | |
431 | if (p <= 0) | |
432 | continue; | |
433 | ||
434 | kill(p, sig); | |
3ba62a83 AT |
435 | } |
436 | } | |
9486289c | 437 | |
4cf64834 | 438 | |
ac13ad10 | 439 | /** Turn a user name into a uid */ |
8ef4ffd6 AT |
440 | int name_to_uid(char *name, uid_t *uid) |
441 | { | |
442 | struct passwd *pass; | |
b5bd5542 WD |
443 | if (!name || !*name) |
444 | return 0; | |
8ef4ffd6 AT |
445 | pass = getpwnam(name); |
446 | if (pass) { | |
447 | *uid = pass->pw_uid; | |
448 | return 1; | |
449 | } | |
450 | return 0; | |
451 | } | |
452 | ||
ac13ad10 | 453 | /** Turn a group name into a gid */ |
8ef4ffd6 AT |
454 | int name_to_gid(char *name, gid_t *gid) |
455 | { | |
456 | struct group *grp; | |
b5bd5542 WD |
457 | if (!name || !*name) |
458 | return 0; | |
8ef4ffd6 AT |
459 | grp = getgrnam(name); |
460 | if (grp) { | |
461 | *gid = grp->gr_gid; | |
462 | return 1; | |
463 | } | |
464 | return 0; | |
465 | } | |
466 | ||
ff8b29b8 | 467 | |
ac13ad10 | 468 | /** Lock a byte range in a open file */ |
31593dd6 | 469 | int lock_range(int fd, int offset, int len) |
0c515f17 | 470 | { |
31593dd6 | 471 | struct flock lock; |
0c515f17 | 472 | |
31593dd6 AT |
473 | lock.l_type = F_WRLCK; |
474 | lock.l_whence = SEEK_SET; | |
475 | lock.l_start = offset; | |
476 | lock.l_len = len; | |
477 | lock.l_pid = 0; | |
5cb37436 | 478 | |
31593dd6 | 479 | return fcntl(fd,F_SETLK,&lock) == 0; |
0c515f17 | 480 | } |
874895d5 | 481 | |
4791825d WD |
482 | static int exclude_server_path(char *arg) |
483 | { | |
484 | char *s; | |
4791825d | 485 | |
bf6dcd17 | 486 | if (server_exclude_list.head) { |
4791825d WD |
487 | for (s = arg; (s = strchr(s, '/')) != NULL; ) { |
488 | *s = '\0'; | |
9fdb334e | 489 | if (check_exclude(&server_exclude_list, arg, 1) < 0) { |
4791825d WD |
490 | /* We must leave arg truncated! */ |
491 | return 1; | |
492 | } | |
493 | *s++ = '/'; | |
494 | } | |
495 | } | |
496 | return 0; | |
497 | } | |
874895d5 | 498 | |
b7061c82 WD |
499 | static void glob_expand_one(char *s, char ***argv_ptr, int *argc_ptr, |
500 | int *maxargs_ptr) | |
874895d5 | 501 | { |
b7061c82 | 502 | char **argv = *argv_ptr; |
b5bd5542 | 503 | int argc = *argc_ptr; |
b7061c82 | 504 | int maxargs = *maxargs_ptr; |
932be9aa | 505 | #if !(defined(HAVE_GLOB) && defined(HAVE_GLOB_H)) |
b7061c82 WD |
506 | if (argc == maxargs) { |
507 | maxargs += MAX_ARGS; | |
508 | if (!(argv = realloc_array(argv, char *, maxargs))) | |
509 | out_of_memory("glob_expand_one"); | |
510 | *argv_ptr = argv; | |
511 | *maxargs_ptr = maxargs; | |
512 | } | |
4135d091 WD |
513 | if (!*s) |
514 | s = "."; | |
b5bd5542 | 515 | s = argv[argc++] = strdup(s); |
4791825d | 516 | exclude_server_path(s); |
874895d5 AT |
517 | #else |
518 | glob_t globbuf; | |
519 | int i; | |
520 | ||
b5bd5542 WD |
521 | if (maxargs <= argc) |
522 | return; | |
4135d091 WD |
523 | if (!*s) |
524 | s = "."; | |
e42c9458 | 525 | |
4135d091 | 526 | if (sanitize_paths) |
84a63795 WD |
527 | s = sanitize_path(NULL, s, NULL); |
528 | else | |
529 | s = strdup(s); | |
087bf010 | 530 | |
5cb37436 | 531 | memset(&globbuf, 0, sizeof globbuf); |
4791825d WD |
532 | if (!exclude_server_path(s)) |
533 | glob(s, 0, NULL, &globbuf); | |
b7061c82 WD |
534 | if (MAX((int)globbuf.gl_pathc, 1) > maxargs - argc) { |
535 | maxargs += globbuf.gl_pathc + MAX_ARGS; | |
536 | if (!(argv = realloc_array(argv, char *, maxargs))) | |
537 | out_of_memory("glob_expand_one"); | |
538 | *argv_ptr = argv; | |
539 | *maxargs_ptr = maxargs; | |
540 | } | |
b5bd5542 WD |
541 | if (globbuf.gl_pathc == 0) |
542 | argv[argc++] = s; | |
543 | else { | |
544 | int j = globbuf.gl_pathc; | |
b5bd5542 WD |
545 | free(s); |
546 | for (i = 0; i < j; i++) { | |
547 | if (!(argv[argc++] = strdup(globbuf.gl_pathv[i]))) | |
548 | out_of_memory("glob_expand_one"); | |
549 | } | |
874895d5 AT |
550 | } |
551 | globfree(&globbuf); | |
874895d5 | 552 | #endif |
b5bd5542 | 553 | *argc_ptr = argc; |
874895d5 | 554 | } |
5a96ee05 | 555 | |
4791825d | 556 | /* This routine is only used in daemon mode. */ |
b7061c82 | 557 | void glob_expand(char *base1, char ***argv_ptr, int *argc_ptr, int *maxargs_ptr) |
087bf010 | 558 | { |
b7061c82 | 559 | char *s = (*argv_ptr)[*argc_ptr]; |
087bf010 | 560 | char *p, *q; |
ba5e128d | 561 | char *base = base1; |
4791825d | 562 | int base_len = strlen(base); |
087bf010 | 563 | |
b5bd5542 WD |
564 | if (!s || !*s) |
565 | return; | |
087bf010 | 566 | |
4791825d WD |
567 | if (strncmp(s, base, base_len) == 0) |
568 | s += base_len; | |
e42c9458 | 569 | |
b5bd5542 WD |
570 | if (!(s = strdup(s))) |
571 | out_of_memory("glob_expand"); | |
087bf010 | 572 | |
b5bd5542 WD |
573 | if (asprintf(&base," %s/", base1) <= 0) |
574 | out_of_memory("glob_expand"); | |
4791825d | 575 | base_len++; |
ba5e128d | 576 | |
b5bd5542 WD |
577 | for (q = s; *q; q = p + base_len) { |
578 | if ((p = strstr(q, base)) != NULL) | |
579 | *p = '\0'; /* split it at this point */ | |
b7061c82 | 580 | glob_expand_one(q, argv_ptr, argc_ptr, maxargs_ptr); |
b5bd5542 WD |
581 | if (!p) |
582 | break; | |
087bf010 AT |
583 | } |
584 | ||
087bf010 | 585 | free(s); |
ba5e128d | 586 | free(base); |
087bf010 | 587 | } |
5a96ee05 | 588 | |
ac13ad10 MP |
589 | /** |
590 | * Convert a string to lower case | |
591 | **/ | |
5a96ee05 AT |
592 | void strlower(char *s) |
593 | { | |
594 | while (*s) { | |
b5bd5542 WD |
595 | if (isupper(*(unsigned char *)s)) |
596 | *s = tolower(*(unsigned char *)s); | |
5a96ee05 AT |
597 | s++; |
598 | } | |
599 | } | |
e42c9458 | 600 | |
368ad70e WD |
601 | /* Join strings p1 & p2 into "dest" with a guaranteed '/' between them. (If |
602 | * p1 ends with a '/', no extra '/' is inserted.) Returns the length of both | |
a8f7e4b8 WD |
603 | * strings + 1 (if '/' was inserted), regardless of whether the null-terminated |
604 | * string fits into destsize. */ | |
368ad70e WD |
605 | size_t pathjoin(char *dest, size_t destsize, const char *p1, const char *p2) |
606 | { | |
607 | size_t len = strlcpy(dest, p1, destsize); | |
608 | if (len < destsize - 1) { | |
609 | if (!len || dest[len-1] != '/') | |
610 | dest[len++] = '/'; | |
611 | if (len < destsize - 1) | |
612 | len += strlcpy(dest + len, p2, destsize - len); | |
613 | else { | |
614 | dest[len] = '\0'; | |
615 | len += strlen(p2); | |
616 | } | |
617 | } | |
618 | else | |
619 | len += strlen(p2) + 1; /* Assume we'd insert a '/'. */ | |
620 | return len; | |
621 | } | |
622 | ||
623 | /* Join any number of strings together, putting them in "dest". The return | |
a8f7e4b8 WD |
624 | * value is the length of all the strings, regardless of whether the null- |
625 | * terminated whole fits in destsize. Your list of string pointers must end | |
626 | * with a NULL to indicate the end of the list. */ | |
368ad70e WD |
627 | size_t stringjoin(char *dest, size_t destsize, ...) |
628 | { | |
5cb37436 | 629 | va_list ap; |
368ad70e WD |
630 | size_t len, ret = 0; |
631 | const char *src; | |
632 | ||
633 | va_start(ap, destsize); | |
634 | while (1) { | |
635 | if (!(src = va_arg(ap, const char *))) | |
636 | break; | |
637 | len = strlen(src); | |
638 | ret += len; | |
639 | if (destsize > 1) { | |
640 | if (len >= destsize) | |
641 | len = destsize - 1; | |
642 | memcpy(dest, src, len); | |
643 | destsize -= len; | |
644 | dest += len; | |
645 | } | |
646 | } | |
647 | *dest = '\0'; | |
648 | va_end(ap); | |
649 | ||
650 | return ret; | |
651 | } | |
652 | ||
5243c216 AT |
653 | void clean_fname(char *name) |
654 | { | |
655 | char *p; | |
656 | int l; | |
657 | int modified = 1; | |
658 | ||
b5bd5542 WD |
659 | if (!name) |
660 | return; | |
5243c216 AT |
661 | |
662 | while (modified) { | |
663 | modified = 0; | |
664 | ||
c284f34a | 665 | if ((p = strstr(name,"/./")) != NULL) { |
5243c216 AT |
666 | modified = 1; |
667 | while (*p) { | |
668 | p[0] = p[2]; | |
669 | p++; | |
670 | } | |
671 | } | |
672 | ||
c284f34a | 673 | if ((p = strstr(name,"//")) != NULL) { |
5243c216 AT |
674 | modified = 1; |
675 | while (*p) { | |
676 | p[0] = p[1]; | |
677 | p++; | |
678 | } | |
679 | } | |
680 | ||
c284f34a | 681 | if (strncmp(p = name, "./", 2) == 0) { |
5243c216 AT |
682 | modified = 1; |
683 | do { | |
684 | p[0] = p[2]; | |
685 | } while (*p++); | |
686 | } | |
687 | ||
c284f34a | 688 | l = strlen(p = name); |
5243c216 AT |
689 | if (l > 1 && p[l-1] == '/') { |
690 | modified = 1; | |
691 | p[l-1] = 0; | |
692 | } | |
693 | } | |
694 | } | |
695 | ||
84a63795 WD |
696 | /* Make path appear as if a chroot had occurred. This handles a leading |
697 | * "/" (either removing it or expanding it) and any leading or embedded | |
698 | * ".." components that attempt to escape past the module's top dir. | |
b4235b31 | 699 | * |
84a63795 WD |
700 | * If dest is NULL, a buffer is allocated to hold the result. If dest is |
701 | * the same buffer as p (the path) OR if reldir is NULL, a leading slash | |
702 | * is dropped instead of being expanded to be the module's top dir. | |
b4235b31 | 703 | * |
84a63795 WD |
704 | * If reldir is non-NULL (and non-empty), it is a sanitized directory that |
705 | * the path will be relative to, so allow as many '..'s at the beginning of | |
706 | * the path as there are components in reldir. This is used for symbolic | |
707 | * link targets. If reldir is non-null and the path began with "/", to be | |
708 | * completely like a chroot we should add in depth levels of ".." at the | |
709 | * beginning of the path, but that would blow the assumption that the path | |
710 | * doesn't grow and it is not likely to end up being a valid symlink | |
711 | * anyway, so just do the normal removal of the leading "/" instead. | |
ac13ad10 | 712 | * |
b5f9e67d | 713 | * While we're at it, remove double slashes and "." components like |
84a63795 WD |
714 | * clean_fname() does, but DON'T remove a trailing slash because that is |
715 | * sometimes significant on command line arguments. | |
ac13ad10 | 716 | * |
84a63795 | 717 | * If the resulting path would be empty, change it into ".". |
1b8e662a | 718 | */ |
84a63795 | 719 | char *sanitize_path(char *dest, const char *p, const char *reldir) |
1b8e662a | 720 | { |
44e2e578 | 721 | char *start, *sanp; |
cb13abfe DD |
722 | int depth = 0; |
723 | int allowdotdot = 0; | |
84a63795 WD |
724 | int rlen = 0; |
725 | ||
726 | if (dest != p) { | |
727 | int plen = strlen(p); | |
728 | if (*p == '/' && reldir) { | |
729 | rlen = strlen(lp_path(module_id)); | |
730 | reldir = NULL; | |
731 | p++; | |
732 | } | |
733 | if (dest) { | |
734 | if (rlen + plen + 1 >= MAXPATHLEN) | |
735 | return NULL; | |
736 | } else if (!(dest = new_array(char, rlen + plen + 1))) | |
737 | out_of_memory("sanitize_path"); | |
738 | if (rlen) { | |
739 | memcpy(dest, lp_path(module_id), rlen); | |
740 | if (rlen > 1) | |
741 | dest[rlen++] = '/'; | |
742 | } | |
743 | } | |
cb13abfe DD |
744 | |
745 | if (reldir) { | |
f9e5a0cd | 746 | int new_component = 1; |
cb13abfe | 747 | while (*reldir) { |
f9e5a0cd WD |
748 | if (*reldir++ == '/') |
749 | new_component = 1; | |
750 | else if (new_component) { | |
751 | new_component = 0; | |
cb13abfe DD |
752 | depth++; |
753 | } | |
754 | } | |
755 | } | |
84a63795 WD |
756 | |
757 | start = sanp = dest + rlen; | |
b5f9e67d DD |
758 | while (*p == '/') { |
759 | /* remove leading slashes */ | |
760 | p++; | |
761 | } | |
1b8e662a | 762 | while (*p != '\0') { |
b5f9e67d | 763 | /* this loop iterates once per filename component in p. |
44e2e578 | 764 | * both p (and sanp if the original had a slash) should |
b5f9e67d DD |
765 | * always be left pointing after a slash |
766 | */ | |
c284f34a | 767 | if (*p == '.' && (p[1] == '/' || p[1] == '\0')) { |
b5f9e67d DD |
768 | /* skip "." component */ |
769 | while (*++p == '/') { | |
770 | /* skip following slashes */ | |
771 | ; | |
772 | } | |
cb13abfe DD |
773 | continue; |
774 | } | |
775 | allowdotdot = 0; | |
c284f34a | 776 | if (*p == '.' && p[1] == '.' && (p[2] == '/' || p[2] == '\0')) { |
cb13abfe | 777 | /* ".." component followed by slash or end */ |
c284f34a | 778 | if (depth > 0 && sanp == start) { |
cb13abfe DD |
779 | /* allow depth levels of .. at the beginning */ |
780 | --depth; | |
781 | allowdotdot = 1; | |
782 | } else { | |
783 | p += 2; | |
784 | if (*p == '/') | |
785 | p++; | |
786 | if (sanp != start) { | |
787 | /* back up sanp one level */ | |
788 | --sanp; /* now pointing at slash */ | |
c284f34a | 789 | while (sanp > start && sanp[-1] != '/') { |
cb13abfe DD |
790 | /* skip back up to slash */ |
791 | sanp--; | |
792 | } | |
b5f9e67d | 793 | } |
cb13abfe | 794 | continue; |
1b8e662a | 795 | } |
cb13abfe DD |
796 | } |
797 | while (1) { | |
798 | /* copy one component through next slash */ | |
799 | *sanp++ = *p++; | |
42509417 | 800 | if (*p == '\0' || p[-1] == '/') { |
cb13abfe DD |
801 | while (*p == '/') { |
802 | /* skip multiple slashes */ | |
803 | p++; | |
b5f9e67d | 804 | } |
cb13abfe | 805 | break; |
1b8e662a DD |
806 | } |
807 | } | |
cb13abfe DD |
808 | if (allowdotdot) { |
809 | /* move the virtual beginning to leave the .. alone */ | |
810 | start = sanp; | |
811 | } | |
1b8e662a | 812 | } |
84a63795 | 813 | if (sanp == dest) { |
b5f9e67d | 814 | /* ended up with nothing, so put in "." component */ |
44e2e578 | 815 | *sanp++ = '.'; |
b5f9e67d | 816 | } |
44e2e578 | 817 | *sanp = '\0'; |
1b8e662a | 818 | |
84a63795 | 819 | return dest; |
14b61c63 | 820 | } |
5243c216 | 821 | |
4791825d | 822 | char curr_dir[MAXPATHLEN]; |
4af8fe4e | 823 | unsigned int curr_dir_len; |
5243c216 | 824 | |
4e5db0ad | 825 | /** |
a16d8f2b WD |
826 | * Like chdir(), but it keeps track of the current directory (in the |
827 | * global "curr_dir"), and ensures that the path size doesn't overflow. | |
828 | * Also cleans the path using the clean_fname() function. | |
4e5db0ad | 829 | **/ |
4af8fe4e | 830 | int push_dir(char *dir) |
5243c216 | 831 | { |
5243c216 | 832 | static int initialised; |
4af8fe4e | 833 | unsigned int len; |
5243c216 AT |
834 | |
835 | if (!initialised) { | |
836 | initialised = 1; | |
5cb37436 | 837 | getcwd(curr_dir, sizeof curr_dir - 1); |
4af8fe4e | 838 | curr_dir_len = strlen(curr_dir); |
5243c216 AT |
839 | } |
840 | ||
4af8fe4e WD |
841 | if (!dir) /* this call was probably just to initialize */ |
842 | return 0; | |
c226b7c2 | 843 | |
4af8fe4e WD |
844 | len = strlen(dir); |
845 | if (len == 1 && *dir == '.') | |
846 | return 1; | |
5243c216 | 847 | |
4af8fe4e WD |
848 | if ((*dir == '/' ? len : curr_dir_len + 1 + len) >= sizeof curr_dir) |
849 | return 0; | |
850 | ||
851 | if (chdir(dir)) | |
852 | return 0; | |
5243c216 AT |
853 | |
854 | if (*dir == '/') { | |
4af8fe4e WD |
855 | memcpy(curr_dir, dir, len + 1); |
856 | curr_dir_len = len; | |
857 | } else { | |
858 | curr_dir[curr_dir_len++] = '/'; | |
859 | memcpy(curr_dir + curr_dir_len, dir, len + 1); | |
860 | curr_dir_len += len; | |
5243c216 AT |
861 | } |
862 | ||
863 | clean_fname(curr_dir); | |
864 | ||
4af8fe4e | 865 | return 1; |
5243c216 AT |
866 | } |
867 | ||
a16d8f2b WD |
868 | /** |
869 | * Reverse a push_dir() call. You must pass in an absolute path | |
870 | * that was copied from a prior value of "curr_dir". | |
871 | **/ | |
5243c216 AT |
872 | int pop_dir(char *dir) |
873 | { | |
4af8fe4e WD |
874 | if (chdir(dir)) |
875 | return 0; | |
5243c216 | 876 | |
4af8fe4e WD |
877 | curr_dir_len = strlcpy(curr_dir, dir, sizeof curr_dir); |
878 | if (curr_dir_len >= sizeof curr_dir) | |
879 | curr_dir_len = sizeof curr_dir - 1; | |
5243c216 | 880 | |
4af8fe4e | 881 | return 1; |
5243c216 | 882 | } |
aa9b77a5 | 883 | |
820b6c9a WD |
884 | /** |
885 | * Return the filename, turning any newlines into '?'s. This ensures that | |
b4afd23c WD |
886 | * outputting it on a line of its own cannot generate an empty line. This |
887 | * function can handle only 2 names at a time! | |
820b6c9a WD |
888 | **/ |
889 | const char *safe_fname(const char *fname) | |
890 | { | |
b4afd23c WD |
891 | static char fbuf1[MAXPATHLEN], fbuf2[MAXPATHLEN]; |
892 | static char *fbuf = fbuf2; | |
820b6c9a WD |
893 | char *nl = strchr(fname, '\n'); |
894 | ||
895 | if (!nl) | |
896 | return fname; | |
897 | ||
b4afd23c WD |
898 | fbuf = fbuf == fbuf1 ? fbuf2 : fbuf1; |
899 | strlcpy(fbuf, fname, MAXPATHLEN); | |
820b6c9a WD |
900 | nl = fbuf + (nl - (char *)fname); |
901 | do { | |
902 | *nl = '?'; | |
903 | } while ((nl = strchr(nl+1, '\n')) != NULL); | |
904 | ||
905 | return fbuf; | |
906 | } | |
907 | ||
eb61be19 WD |
908 | /** |
909 | * Return a quoted string with the full pathname of the indicated filename. | |
910 | * The string " (in MODNAME)" may also be appended. The returned pointer | |
911 | * remains valid until the next time full_fname() is called. | |
912 | **/ | |
9a5ade18 | 913 | char *full_fname(const char *fn) |
eb61be19 | 914 | { |
eb61be19 WD |
915 | static char *result = NULL; |
916 | char *m1, *m2, *m3; | |
917 | char *p1, *p2; | |
918 | ||
919 | if (result) | |
920 | free(result); | |
921 | ||
af1a3f9b | 922 | fn = safe_fname(fn); |
eb61be19 WD |
923 | if (*fn == '/') |
924 | p1 = p2 = ""; | |
925 | else { | |
926 | p1 = curr_dir; | |
927 | p2 = "/"; | |
928 | } | |
929 | if (module_id >= 0) { | |
930 | m1 = " (in "; | |
931 | m2 = lp_name(module_id); | |
932 | m3 = ")"; | |
933 | if (*p1) { | |
934 | if (!lp_use_chroot(module_id)) { | |
935 | char *p = lp_path(module_id); | |
936 | if (*p != '/' || p[1]) | |
937 | p1 += strlen(p); | |
938 | } | |
939 | if (!*p1) | |
940 | p2++; | |
941 | else | |
942 | p1++; | |
943 | } | |
944 | else | |
945 | fn++; | |
946 | } else | |
947 | m1 = m2 = m3 = ""; | |
948 | ||
949 | asprintf(&result, "\"%s%s%s\"%s%s%s", p1, p2, fn, m1, m2, m3); | |
950 | ||
951 | return result; | |
952 | } | |
953 | ||
a7260c40 WD |
954 | static char partial_fname[MAXPATHLEN]; |
955 | ||
956 | char *partial_dir_fname(const char *fname) | |
957 | { | |
958 | char *t = partial_fname; | |
959 | int sz = sizeof partial_fname; | |
960 | const char *fn; | |
961 | ||
962 | if ((fn = strrchr(fname, '/')) != NULL) { | |
963 | fn++; | |
964 | if (*partial_dir != '/') { | |
965 | int len = fn - fname; | |
966 | strncpy(t, fname, len); /* safe */ | |
967 | t += len; | |
968 | sz -= len; | |
969 | } | |
970 | } else | |
971 | fn = fname; | |
972 | if ((int)pathjoin(t, sz, partial_dir, fn) >= sz) | |
973 | return NULL; | |
c4054610 WD |
974 | if (server_exclude_list.head |
975 | && check_exclude(&server_exclude_list, partial_fname, 0) < 0) | |
976 | return NULL; | |
a7260c40 WD |
977 | |
978 | return partial_fname; | |
979 | } | |
980 | ||
981 | /* If no --partial-dir option was specified, we don't need to do anything | |
982 | * (the partial-dir is essentially '.'), so just return success. */ | |
983 | int handle_partial_dir(const char *fname, int create) | |
984 | { | |
985 | char *fn, *dir; | |
986 | ||
987 | if (fname != partial_fname) | |
988 | return 1; | |
989 | if (!create && *partial_dir == '/') | |
990 | return 1; | |
991 | if (!(fn = strrchr(partial_fname, '/'))) | |
992 | return 1; | |
993 | ||
994 | *fn = '\0'; | |
995 | dir = partial_fname; | |
996 | if (create) { | |
997 | STRUCT_STAT st; | |
998 | #if SUPPORT_LINKS | |
999 | int statret = do_lstat(dir, &st); | |
1000 | #else | |
1001 | int statret = do_stat(dir, &st); | |
1002 | #endif | |
1003 | if (statret == 0 && !S_ISDIR(st.st_mode)) { | |
1004 | if (do_unlink(dir) < 0) | |
1005 | return 0; | |
1006 | statret = -1; | |
1007 | } | |
1008 | if (statret < 0 && do_mkdir(dir, 0700) < 0) | |
1009 | return 0; | |
1010 | } else | |
1011 | do_rmdir(dir); | |
1012 | *fn = '/'; | |
1013 | ||
1014 | return 1; | |
1015 | } | |
1016 | ||
ac13ad10 | 1017 | /** We need to supply our own strcmp function for file list comparisons |
aa9b77a5 AT |
1018 | to ensure that signed/unsigned usage is consistent between machines. */ |
1019 | int u_strcmp(const char *cs1, const char *cs2) | |
1020 | { | |
5a788ade AT |
1021 | const uchar *s1 = (const uchar *)cs1; |
1022 | const uchar *s2 = (const uchar *)cs2; | |
aa9b77a5 AT |
1023 | |
1024 | while (*s1 && *s2 && (*s1 == *s2)) { | |
1025 | s1++; s2++; | |
1026 | } | |
5cb37436 | 1027 | |
aa9b77a5 AT |
1028 | return (int)*s1 - (int)*s2; |
1029 | } | |
eb86d661 | 1030 | |
4b957c22 | 1031 | |
ac13ad10 MP |
1032 | |
1033 | /** | |
1034 | * Determine if a symlink points outside the current directory tree. | |
036e70b0 MP |
1035 | * This is considered "unsafe" because e.g. when mirroring somebody |
1036 | * else's machine it might allow them to establish a symlink to | |
1037 | * /etc/passwd, and then read it through a web server. | |
1038 | * | |
4e5db0ad MP |
1039 | * Null symlinks and absolute symlinks are always unsafe. |
1040 | * | |
1041 | * Basically here we are concerned with symlinks whose target contains | |
1042 | * "..", because this might cause us to walk back up out of the | |
1043 | * transferred directory. We are not allowed to go back up and | |
1044 | * reenter. | |
1045 | * | |
036e70b0 MP |
1046 | * @param dest Target of the symlink in question. |
1047 | * | |
25d34a5c | 1048 | * @param src Top source directory currently applicable. Basically this |
036e70b0 | 1049 | * is the first parameter to rsync in a simple invocation, but it's |
25d34a5c | 1050 | * modified by flist.c in slightly complex ways. |
036e70b0 MP |
1051 | * |
1052 | * @retval True if unsafe | |
1053 | * @retval False is unsafe | |
4e5db0ad MP |
1054 | * |
1055 | * @sa t_unsafe.c | |
ac13ad10 | 1056 | **/ |
7afa3a4a | 1057 | int unsafe_symlink(const char *dest, const char *src) |
4b957c22 | 1058 | { |
7afa3a4a | 1059 | const char *name, *slash; |
4b957c22 AT |
1060 | int depth = 0; |
1061 | ||
1062 | /* all absolute and null symlinks are unsafe */ | |
b5bd5542 WD |
1063 | if (!dest || !*dest || *dest == '/') |
1064 | return 1; | |
4b957c22 AT |
1065 | |
1066 | /* find out what our safety margin is */ | |
7afa3a4a WD |
1067 | for (name = src; (slash = strchr(name, '/')) != 0; name = slash+1) { |
1068 | if (strncmp(name, "../", 3) == 0) { | |
c284f34a | 1069 | depth = 0; |
7afa3a4a | 1070 | } else if (strncmp(name, "./", 2) == 0) { |
4b957c22 AT |
1071 | /* nothing */ |
1072 | } else { | |
1073 | depth++; | |
1074 | } | |
1075 | } | |
7afa3a4a WD |
1076 | if (strcmp(name, "..") == 0) |
1077 | depth = 0; | |
4b957c22 | 1078 | |
7afa3a4a WD |
1079 | for (name = dest; (slash = strchr(name, '/')) != 0; name = slash+1) { |
1080 | if (strncmp(name, "../", 3) == 0) { | |
1081 | /* if at any point we go outside the current directory | |
1082 | then stop - it is unsafe */ | |
1083 | if (--depth < 0) | |
1084 | return 1; | |
1085 | } else if (strncmp(name, "./", 2) == 0) { | |
4b957c22 AT |
1086 | /* nothing */ |
1087 | } else { | |
1088 | depth++; | |
1089 | } | |
4b957c22 | 1090 | } |
7afa3a4a WD |
1091 | if (strcmp(name, "..") == 0) |
1092 | depth--; | |
4b957c22 | 1093 | |
4b957c22 AT |
1094 | return (depth < 0); |
1095 | } | |
375a4556 | 1096 | |
f7632fc6 | 1097 | |
ac13ad10 | 1098 | /** |
b4235b31 MP |
1099 | * Return the date and time as a string |
1100 | **/ | |
f7632fc6 AT |
1101 | char *timestring(time_t t) |
1102 | { | |
1103 | static char TimeBuf[200]; | |
1104 | struct tm *tm = localtime(&t); | |
1105 | ||
1106 | #ifdef HAVE_STRFTIME | |
5cb37436 | 1107 | strftime(TimeBuf, sizeof TimeBuf - 1, "%Y/%m/%d %H:%M:%S", tm); |
f7632fc6 | 1108 | #else |
5cb37436 | 1109 | strlcpy(TimeBuf, asctime(tm), sizeof TimeBuf); |
f7632fc6 AT |
1110 | #endif |
1111 | ||
1112 | if (TimeBuf[strlen(TimeBuf)-1] == '\n') { | |
1113 | TimeBuf[strlen(TimeBuf)-1] = 0; | |
1114 | } | |
1115 | ||
1116 | return(TimeBuf); | |
1117 | } | |
1118 | ||
9ec16c83 | 1119 | |
e1bd49d6 MP |
1120 | /** |
1121 | * Sleep for a specified number of milliseconds. | |
1122 | * | |
1123 | * Always returns TRUE. (In the future it might return FALSE if | |
1124 | * interrupted.) | |
1125 | **/ | |
1126 | int msleep(int t) | |
9ec16c83 | 1127 | { |
c284f34a WD |
1128 | int tdiff = 0; |
1129 | struct timeval tval, t1, t2; | |
9ec16c83 AT |
1130 | |
1131 | gettimeofday(&t1, NULL); | |
5cb37436 | 1132 | |
9ec16c83 AT |
1133 | while (tdiff < t) { |
1134 | tval.tv_sec = (t-tdiff)/1000; | |
1135 | tval.tv_usec = 1000*((t-tdiff)%1000); | |
5cb37436 | 1136 | |
9ec16c83 AT |
1137 | errno = 0; |
1138 | select(0,NULL,NULL, NULL, &tval); | |
1139 | ||
1140 | gettimeofday(&t2, NULL); | |
5cb37436 | 1141 | tdiff = (t2.tv_sec - t1.tv_sec)*1000 + |
9ec16c83 AT |
1142 | (t2.tv_usec - t1.tv_usec)/1000; |
1143 | } | |
e1bd49d6 MP |
1144 | |
1145 | return True; | |
9ec16c83 AT |
1146 | } |
1147 | ||
1148 | ||
ac13ad10 MP |
1149 | /** |
1150 | * Determine if two file modification times are equivalent (either | |
1151 | * exact or in the modification timestamp window established by | |
1152 | * --modify-window). | |
1153 | * | |
1154 | * @retval 0 if the times should be treated as the same | |
1155 | * | |
1156 | * @retval +1 if the first is later | |
1157 | * | |
1158 | * @retval -1 if the 2nd is later | |
1159 | **/ | |
5b56cc19 AT |
1160 | int cmp_modtime(time_t file1, time_t file2) |
1161 | { | |
5b56cc19 | 1162 | if (file2 > file1) { |
bc6ebcd2 WD |
1163 | if (file2 - file1 <= modify_window) |
1164 | return 0; | |
5b56cc19 AT |
1165 | return -1; |
1166 | } | |
bc6ebcd2 WD |
1167 | if (file1 - file2 <= modify_window) |
1168 | return 0; | |
5b56cc19 AT |
1169 | return 1; |
1170 | } | |
1171 | ||
1172 | ||
1173 | #ifdef __INSURE__XX | |
0f8f98c8 AT |
1174 | #include <dlfcn.h> |
1175 | ||
ac13ad10 MP |
1176 | /** |
1177 | This routine is a trick to immediately catch errors when debugging | |
1178 | with insure. A xterm with a gdb is popped up when insure catches | |
1179 | a error. It is Linux specific. | |
1180 | **/ | |
0f8f98c8 AT |
1181 | int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6) |
1182 | { | |
1183 | static int (*fn)(); | |
1184 | int ret; | |
8950ac03 | 1185 | char *cmd; |
0f8f98c8 | 1186 | |
5cb37436 | 1187 | asprintf(&cmd, "/usr/X11R6/bin/xterm -display :0 -T Panic -n Panic -e /bin/sh -c 'cat /tmp/ierrs.*.%d ; gdb /proc/%d/exe %d'", |
0f8f98c8 AT |
1188 | getpid(), getpid(), getpid()); |
1189 | ||
1190 | if (!fn) { | |
1191 | static void *h; | |
1192 | h = dlopen("/usr/local/parasoft/insure++lite/lib.linux2/libinsure.so", RTLD_LAZY); | |
1193 | fn = dlsym(h, "_Insure_trap_error"); | |
1194 | } | |
1195 | ||
1196 | ret = fn(a1, a2, a3, a4, a5, a6); | |
1197 | ||
1198 | system(cmd); | |
1199 | ||
8950ac03 AT |
1200 | free(cmd); |
1201 | ||
0f8f98c8 AT |
1202 | return ret; |
1203 | } | |
1204 | #endif | |
58cadc86 WD |
1205 | |
1206 | ||
1207 | #define MALLOC_MAX 0x40000000 | |
1208 | ||
1209 | void *_new_array(unsigned int size, unsigned long num) | |
1210 | { | |
1211 | if (num >= MALLOC_MAX/size) | |
1212 | return NULL; | |
1213 | return malloc(size * num); | |
1214 | } | |
1215 | ||
1216 | void *_realloc_array(void *ptr, unsigned int size, unsigned long num) | |
1217 | { | |
1218 | if (num >= MALLOC_MAX/size) | |
1219 | return NULL; | |
1220 | /* No realloc should need this, but just in case... */ | |
1221 | if (!ptr) | |
1222 | return malloc(size * num); | |
1223 | return realloc(ptr, size * num); | |
1224 | } |