Commit | Line | Data |
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1960e228 MP |
1 | /* -*- c-file-style: "linux" -*- |
2 | ||
3 | Copyright (C) 1996-2000 by Andrew Tridgell | |
4 | Copyright (C) Paul Mackerras 1996 | |
a9b31409 | 5 | Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org> |
c627d613 AT |
6 | |
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. | |
11 | ||
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. | |
16 | ||
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 | */ | |
21 | ||
22 | /* | |
23 | Utilities used in rsync | |
24 | ||
25 | tridge, June 1996 | |
26 | */ | |
27 | #include "rsync.h" | |
28 | ||
c7c11a0d DD |
29 | extern int verbose; |
30 | ||
f0359dd0 AT |
31 | |
32 | /**************************************************************************** | |
36349ea0 | 33 | Set a fd into nonblocking mode |
f0359dd0 AT |
34 | ****************************************************************************/ |
35 | void set_nonblocking(int fd) | |
36 | { | |
37 | int val; | |
38 | ||
39 | if((val = fcntl(fd, F_GETFL, 0)) == -1) | |
40 | return; | |
41 | if (!(val & NONBLOCK_FLAG)) { | |
42 | val |= NONBLOCK_FLAG; | |
43 | fcntl(fd, F_SETFL, val); | |
44 | } | |
45 | } | |
46 | ||
36349ea0 AT |
47 | /**************************************************************************** |
48 | Set a fd into blocking mode | |
49 | ****************************************************************************/ | |
50 | void set_blocking(int fd) | |
51 | { | |
52 | int val; | |
53 | ||
54 | if((val = fcntl(fd, F_GETFL, 0)) == -1) | |
55 | return; | |
56 | if (val & NONBLOCK_FLAG) { | |
57 | val &= ~NONBLOCK_FLAG; | |
58 | fcntl(fd, F_SETFL, val); | |
59 | } | |
60 | } | |
61 | ||
f0359dd0 AT |
62 | |
63 | /* create a file descriptor pair - like pipe() but use socketpair if | |
64 | possible (because of blocking issues on pipes) | |
65 | ||
66 | always set non-blocking | |
67 | */ | |
08f15335 AT |
68 | int fd_pair(int fd[2]) |
69 | { | |
f0359dd0 AT |
70 | int ret; |
71 | ||
08f15335 | 72 | #if HAVE_SOCKETPAIR |
f0359dd0 | 73 | ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fd); |
08f15335 | 74 | #else |
f0359dd0 | 75 | ret = pipe(fd); |
08f15335 | 76 | #endif |
f0359dd0 AT |
77 | |
78 | if (ret == 0) { | |
79 | set_nonblocking(fd[0]); | |
80 | set_nonblocking(fd[1]); | |
81 | } | |
82 | ||
83 | return ret; | |
08f15335 AT |
84 | } |
85 | ||
86 | ||
6dd41b67 | 87 | static void print_child_argv(char **cmd) |
5ad0e46f | 88 | { |
1bbd10fe | 89 | rprintf(FINFO, "opening connection using "); |
5ad0e46f MP |
90 | for (; *cmd; cmd++) { |
91 | /* Look for characters that ought to be quoted. This | |
92 | * is not a great quoting algorithm, but it's | |
93 | * sufficient for a log message. */ | |
94 | if (strspn(*cmd, "abcdefghijklmnopqrstuvwxyz" | |
95 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
96 | "0123456789" | |
97 | ",.-_=+@/") != strlen(*cmd)) { | |
98 | rprintf(FINFO, "\"%s\" ", *cmd); | |
99 | } else { | |
100 | rprintf(FINFO, "%s ", *cmd); | |
101 | } | |
102 | } | |
103 | rprintf(FINFO, "\n"); | |
104 | } | |
105 | ||
106 | ||
08e5094d AT |
107 | /* this is derived from CVS code |
108 | ||
109 | note that in the child STDIN is set to blocking and STDOUT | |
110 | is set to non-blocking. This is necessary as rsh relies on stdin being blocking | |
111 | and ssh relies on stdout being non-blocking | |
112 | ||
113 | if blocking_io is set then use blocking io on both fds. That can be | |
114 | used to cope with badly broken rsh implementations like the one on | |
115 | solaris. | |
116 | */ | |
1b5814e3 | 117 | pid_t piped_child(char **command, int *f_in, int *f_out) |
c627d613 | 118 | { |
1b5814e3 MP |
119 | pid_t pid; |
120 | int to_child_pipe[2]; | |
121 | int from_child_pipe[2]; | |
122 | extern int blocking_io; | |
5ad0e46f | 123 | |
0b1ffe27 | 124 | if (verbose >= 2) { |
5ad0e46f MP |
125 | print_child_argv(command); |
126 | } | |
1b5814e3 MP |
127 | |
128 | if (fd_pair(to_child_pipe) < 0 || fd_pair(from_child_pipe) < 0) { | |
129 | rprintf(FERROR, "pipe: %s\n", strerror(errno)); | |
130 | exit_cleanup(RERR_IPC); | |
131 | } | |
132 | ||
133 | ||
134 | pid = do_fork(); | |
135 | if (pid == -1) { | |
136 | rprintf(FERROR, "fork: %s\n", strerror(errno)); | |
137 | exit_cleanup(RERR_IPC); | |
138 | } | |
139 | ||
140 | if (pid == 0) { | |
141 | extern int orig_umask; | |
142 | if (dup2(to_child_pipe[0], STDIN_FILENO) < 0 || | |
143 | close(to_child_pipe[1]) < 0 || | |
144 | close(from_child_pipe[0]) < 0 || | |
145 | dup2(from_child_pipe[1], STDOUT_FILENO) < 0) { | |
146 | rprintf(FERROR, "Failed to dup/close : %s\n", | |
147 | strerror(errno)); | |
148 | exit_cleanup(RERR_IPC); | |
149 | } | |
150 | if (to_child_pipe[0] != STDIN_FILENO) | |
151 | close(to_child_pipe[0]); | |
152 | if (from_child_pipe[1] != STDOUT_FILENO) | |
153 | close(from_child_pipe[1]); | |
154 | umask(orig_umask); | |
155 | set_blocking(STDIN_FILENO); | |
156 | if (blocking_io) { | |
157 | set_blocking(STDOUT_FILENO); | |
158 | } | |
159 | execvp(command[0], command); | |
160 | rprintf(FERROR, "Failed to exec %s : %s\n", | |
161 | command[0], strerror(errno)); | |
162 | exit_cleanup(RERR_IPC); | |
163 | } | |
164 | ||
165 | if (close(from_child_pipe[1]) < 0 || close(to_child_pipe[0]) < 0) { | |
166 | rprintf(FERROR, "Failed to close : %s\n", strerror(errno)); | |
167 | exit_cleanup(RERR_IPC); | |
168 | } | |
169 | ||
170 | *f_in = from_child_pipe[0]; | |
171 | *f_out = to_child_pipe[1]; | |
172 | ||
173 | return pid; | |
c627d613 AT |
174 | } |
175 | ||
19b27a48 | 176 | pid_t local_child(int argc, char **argv,int *f_in,int *f_out) |
366345fe | 177 | { |
19b27a48 | 178 | pid_t pid; |
366345fe AT |
179 | int to_child_pipe[2]; |
180 | int from_child_pipe[2]; | |
6902ed17 | 181 | extern int read_batch; /* dw */ |
366345fe | 182 | |
08f15335 AT |
183 | if (fd_pair(to_child_pipe) < 0 || |
184 | fd_pair(from_child_pipe) < 0) { | |
9486289c | 185 | rprintf(FERROR,"pipe: %s\n",strerror(errno)); |
65417579 | 186 | exit_cleanup(RERR_IPC); |
366345fe AT |
187 | } |
188 | ||
189 | ||
190 | pid = do_fork(); | |
19b27a48 | 191 | if (pid == -1) { |
9486289c | 192 | rprintf(FERROR,"fork: %s\n",strerror(errno)); |
65417579 | 193 | exit_cleanup(RERR_IPC); |
366345fe AT |
194 | } |
195 | ||
196 | if (pid == 0) { | |
197 | extern int am_sender; | |
198 | extern int am_server; | |
199 | ||
76f79ba7 | 200 | am_sender = read_batch ? 0 : !am_sender; |
366345fe AT |
201 | am_server = 1; |
202 | ||
203 | if (dup2(to_child_pipe[0], STDIN_FILENO) < 0 || | |
204 | close(to_child_pipe[1]) < 0 || | |
205 | close(from_child_pipe[0]) < 0 || | |
206 | dup2(from_child_pipe[1], STDOUT_FILENO) < 0) { | |
9486289c | 207 | rprintf(FERROR,"Failed to dup/close : %s\n",strerror(errno)); |
65417579 | 208 | exit_cleanup(RERR_IPC); |
366345fe AT |
209 | } |
210 | if (to_child_pipe[0] != STDIN_FILENO) close(to_child_pipe[0]); | |
211 | if (from_child_pipe[1] != STDOUT_FILENO) close(from_child_pipe[1]); | |
9486289c | 212 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
366345fe AT |
213 | } |
214 | ||
215 | if (close(from_child_pipe[1]) < 0 || | |
216 | close(to_child_pipe[0]) < 0) { | |
9486289c | 217 | rprintf(FERROR,"Failed to close : %s\n",strerror(errno)); |
65417579 | 218 | exit_cleanup(RERR_IPC); |
366345fe AT |
219 | } |
220 | ||
221 | *f_in = from_child_pipe[0]; | |
222 | *f_out = to_child_pipe[1]; | |
223 | ||
224 | return pid; | |
225 | } | |
226 | ||
227 | ||
c627d613 AT |
228 | |
229 | void out_of_memory(char *str) | |
230 | { | |
9486289c | 231 | rprintf(FERROR,"ERROR: out of memory in %s\n",str); |
65417579 | 232 | exit_cleanup(RERR_MALLOC); |
575f2fca AT |
233 | } |
234 | ||
235 | void overflow(char *str) | |
236 | { | |
9486289c | 237 | rprintf(FERROR,"ERROR: buffer overflow in %s\n",str); |
65417579 | 238 | exit_cleanup(RERR_MALLOC); |
c627d613 AT |
239 | } |
240 | ||
241 | ||
c627d613 | 242 | |
404e813c | 243 | int set_modtime(char *fname, time_t modtime) |
c627d613 | 244 | { |
31e12522 | 245 | extern int dry_run; |
404e813c MP |
246 | if (dry_run) |
247 | return 0; | |
248 | ||
249 | if (verbose > 2) { | |
250 | rprintf(FINFO, "set modtime of %s to (%ld) %s", | |
251 | fname, (long) modtime, | |
252 | asctime(localtime(&modtime))); | |
253 | } | |
254 | ||
31e12522 | 255 | { |
1e9f155a | 256 | #ifdef HAVE_UTIMBUF |
31e12522 AT |
257 | struct utimbuf tbuf; |
258 | tbuf.actime = time(NULL); | |
259 | tbuf.modtime = modtime; | |
260 | return utime(fname,&tbuf); | |
c627d613 | 261 | #elif defined(HAVE_UTIME) |
31e12522 AT |
262 | time_t t[2]; |
263 | t[0] = time(NULL); | |
264 | t[1] = modtime; | |
265 | return utime(fname,t); | |
c627d613 | 266 | #else |
31e12522 AT |
267 | struct timeval t[2]; |
268 | t[0].tv_sec = time(NULL); | |
269 | t[0].tv_usec = 0; | |
270 | t[1].tv_sec = modtime; | |
271 | t[1].tv_usec = 0; | |
272 | return utimes(fname,t); | |
c627d613 | 273 | #endif |
31e12522 | 274 | } |
c627d613 | 275 | } |
94481d91 | 276 | |
720b47f2 | 277 | |
6574b4f7 AT |
278 | /**************************************************************************** |
279 | create any necessary directories in fname. Unfortunately we don't know | |
280 | what perms to give the directory when this is called so we need to rely | |
281 | on the umask | |
282 | ****************************************************************************/ | |
283 | int create_directory_path(char *fname) | |
284 | { | |
285 | extern int orig_umask; | |
286 | char *p; | |
287 | ||
288 | while (*fname == '/') fname++; | |
289 | while (strncmp(fname,"./",2)==0) fname += 2; | |
290 | ||
291 | p = fname; | |
292 | while ((p=strchr(p,'/'))) { | |
293 | *p = 0; | |
1b2d733a | 294 | do_mkdir(fname,0777 & ~orig_umask); |
6574b4f7 AT |
295 | *p = '/'; |
296 | p++; | |
297 | } | |
298 | return 0; | |
299 | } | |
950ab32d AT |
300 | |
301 | ||
302 | /* Write LEN bytes at PTR to descriptor DESC, retrying if interrupted. | |
303 | Return LEN upon success, write's (negative) error code otherwise. | |
304 | ||
305 | derived from GNU C's cccp.c. | |
306 | */ | |
9dd891bb | 307 | static int full_write(int desc, char *ptr, size_t len) |
950ab32d AT |
308 | { |
309 | int total_written; | |
310 | ||
311 | total_written = 0; | |
312 | while (len > 0) { | |
313 | int written = write (desc, ptr, len); | |
314 | if (written < 0) { | |
315 | #ifdef EINTR | |
316 | if (errno == EINTR) | |
317 | continue; | |
318 | #endif | |
319 | return written; | |
320 | } | |
321 | total_written += written; | |
322 | ptr += written; | |
323 | len -= written; | |
324 | } | |
325 | return total_written; | |
326 | } | |
327 | ||
328 | /* Read LEN bytes at PTR from descriptor DESC, retrying if interrupted. | |
329 | Return the actual number of bytes read, zero for EOF, or negative | |
330 | for an error. | |
331 | ||
332 | derived from GNU C's cccp.c. */ | |
9dd891bb | 333 | static int safe_read(int desc, char *ptr, size_t len) |
950ab32d AT |
334 | { |
335 | int n_chars; | |
336 | ||
9dd891bb | 337 | if (len == 0) |
950ab32d AT |
338 | return len; |
339 | ||
340 | #ifdef EINTR | |
341 | do { | |
342 | n_chars = read(desc, ptr, len); | |
343 | } while (n_chars < 0 && errno == EINTR); | |
344 | #else | |
345 | n_chars = read(desc, ptr, len); | |
346 | #endif | |
347 | ||
348 | return n_chars; | |
349 | } | |
350 | ||
351 | ||
352 | /* copy a file - this is used in conjunction with the --temp-dir option */ | |
353 | int copy_file(char *source, char *dest, mode_t mode) | |
354 | { | |
355 | int ifd; | |
356 | int ofd; | |
357 | char buf[1024 * 8]; | |
358 | int len; /* Number of bytes read into `buf'. */ | |
359 | ||
8c9fd200 | 360 | ifd = do_open(source, O_RDONLY, 0); |
950ab32d | 361 | if (ifd == -1) { |
9486289c | 362 | rprintf(FERROR,"open %s: %s\n", |
950ab32d AT |
363 | source,strerror(errno)); |
364 | return -1; | |
365 | } | |
366 | ||
c7c11a0d | 367 | if (robust_unlink(dest) && errno != ENOENT) { |
9486289c | 368 | rprintf(FERROR,"unlink %s: %s\n", |
950ab32d AT |
369 | dest,strerror(errno)); |
370 | return -1; | |
371 | } | |
372 | ||
31e12522 | 373 | ofd = do_open(dest, O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, mode); |
c46ded46 | 374 | if (ofd == -1) { |
9486289c | 375 | rprintf(FERROR,"open %s: %s\n", |
950ab32d AT |
376 | dest,strerror(errno)); |
377 | close(ifd); | |
378 | return -1; | |
379 | } | |
380 | ||
381 | while ((len = safe_read(ifd, buf, sizeof(buf))) > 0) { | |
382 | if (full_write(ofd, buf, len) < 0) { | |
9486289c | 383 | rprintf(FERROR,"write %s: %s\n", |
950ab32d AT |
384 | dest,strerror(errno)); |
385 | close(ifd); | |
386 | close(ofd); | |
387 | return -1; | |
388 | } | |
389 | } | |
390 | ||
391 | close(ifd); | |
392 | close(ofd); | |
393 | ||
394 | if (len < 0) { | |
9486289c | 395 | rprintf(FERROR,"read %s: %s\n", |
950ab32d AT |
396 | source,strerror(errno)); |
397 | return -1; | |
398 | } | |
399 | ||
400 | return 0; | |
401 | } | |
feaa89c4 | 402 | |
c7c11a0d DD |
403 | /* |
404 | Robust unlink: some OS'es (HPUX) refuse to unlink busy files, so | |
405 | rename to <path>/.rsyncNNN instead. Note that successive rsync runs | |
406 | will shuffle the filenames around a bit as long as the file is still | |
407 | busy; this is because this function does not know if the unlink call | |
408 | is due to a new file coming in, or --delete trying to remove old | |
409 | .rsyncNNN files, hence it renames it each time. | |
410 | */ | |
411 | /* MAX_RENAMES should be 10**MAX_RENAMES_DIGITS */ | |
412 | #define MAX_RENAMES_DIGITS 3 | |
413 | #define MAX_RENAMES 1000 | |
414 | ||
415 | int robust_unlink(char *fname) | |
416 | { | |
417 | #ifndef ETXTBSY | |
418 | return do_unlink(fname); | |
419 | #else | |
420 | static int counter = 1; | |
421 | int rc, pos, start; | |
422 | char path[MAXPATHLEN]; | |
423 | ||
424 | rc = do_unlink(fname); | |
425 | if ((rc == 0) || (errno != ETXTBSY)) | |
426 | return rc; | |
427 | ||
428 | strlcpy(path, fname, MAXPATHLEN); | |
429 | ||
430 | pos = strlen(path); | |
431 | while((path[--pos] != '/') && (pos >= 0)) | |
432 | ; | |
433 | ++pos; | |
434 | strlcpy(&path[pos], ".rsync", MAXPATHLEN-pos); | |
435 | pos += sizeof(".rsync")-1; | |
436 | ||
437 | if (pos > (MAXPATHLEN-MAX_RENAMES_DIGITS-1)) { | |
438 | errno = ETXTBSY; | |
439 | return -1; | |
440 | } | |
441 | ||
442 | /* start where the last one left off to reduce chance of clashes */ | |
443 | start = counter; | |
444 | do { | |
445 | sprintf(&path[pos], "%03d", counter); | |
446 | if (++counter >= MAX_RENAMES) | |
447 | counter = 1; | |
448 | } while (((rc = access(path, 0)) == 0) && (counter != start)); | |
449 | ||
450 | if (verbose > 0) | |
451 | rprintf(FINFO,"renaming %s to %s because of text busy\n", | |
452 | fname, path); | |
453 | ||
454 | /* maybe we should return rename()'s exit status? Nah. */ | |
455 | if (do_rename(fname, path) != 0) { | |
456 | errno = ETXTBSY; | |
457 | return -1; | |
458 | } | |
459 | return 0; | |
460 | #endif | |
461 | } | |
462 | ||
463 | int robust_rename(char *from, char *to) | |
464 | { | |
465 | #ifndef ETXTBSY | |
466 | return do_rename(from, to); | |
467 | #else | |
468 | int rc = do_rename(from, to); | |
469 | if ((rc == 0) || (errno != ETXTBSY)) | |
470 | return rc; | |
471 | if (robust_unlink(to) != 0) | |
472 | return -1; | |
473 | return do_rename(from, to); | |
474 | #endif | |
feaa89c4 | 475 | } |
3ba62a83 AT |
476 | |
477 | ||
478 | static pid_t all_pids[10]; | |
479 | static int num_pids; | |
480 | ||
4cf64834 | 481 | /** Fork and record the pid of the child. **/ |
3ba62a83 AT |
482 | pid_t do_fork(void) |
483 | { | |
484 | pid_t newpid = fork(); | |
485 | ||
4cf64834 | 486 | if (newpid != 0 && newpid != -1) { |
3ba62a83 AT |
487 | all_pids[num_pids++] = newpid; |
488 | } | |
489 | return newpid; | |
490 | } | |
491 | ||
4cf64834 MP |
492 | /** |
493 | * Kill all children. | |
494 | * | |
495 | * @todo It would be kind of nice to make sure that they are actually | |
496 | * all our children before we kill them, because their pids may have | |
497 | * been recycled by some other process. Perhaps when we wait for a | |
498 | * child, we should remove it from this array. Alternatively we could | |
499 | * perhaps use process groups, but I think that would not work on | |
500 | * ancient Unix versions that don't support them. | |
501 | **/ | |
3ba62a83 AT |
502 | void kill_all(int sig) |
503 | { | |
504 | int i; | |
4cf64834 MP |
505 | |
506 | for (i = 0; i < num_pids; i++) { | |
507 | /* Let's just be a little careful where we | |
508 | * point that gun, hey? See kill(2) for the | |
509 | * magic caused by negative values. */ | |
510 | pid_t p = all_pids[i]; | |
511 | ||
512 | if (p == getpid()) | |
513 | continue; | |
514 | if (p <= 0) | |
515 | continue; | |
516 | ||
517 | kill(p, sig); | |
3ba62a83 AT |
518 | } |
519 | } | |
9486289c | 520 | |
4cf64834 | 521 | |
8ef4ffd6 AT |
522 | /* turn a user name into a uid */ |
523 | int name_to_uid(char *name, uid_t *uid) | |
524 | { | |
525 | struct passwd *pass; | |
526 | if (!name || !*name) return 0; | |
527 | pass = getpwnam(name); | |
528 | if (pass) { | |
529 | *uid = pass->pw_uid; | |
530 | return 1; | |
531 | } | |
532 | return 0; | |
533 | } | |
534 | ||
535 | /* turn a group name into a gid */ | |
536 | int name_to_gid(char *name, gid_t *gid) | |
537 | { | |
538 | struct group *grp; | |
539 | if (!name || !*name) return 0; | |
540 | grp = getgrnam(name); | |
541 | if (grp) { | |
542 | *gid = grp->gr_gid; | |
543 | return 1; | |
544 | } | |
545 | return 0; | |
546 | } | |
547 | ||
ff8b29b8 | 548 | |
31593dd6 AT |
549 | /* lock a byte range in a open file */ |
550 | int lock_range(int fd, int offset, int len) | |
0c515f17 | 551 | { |
31593dd6 | 552 | struct flock lock; |
0c515f17 | 553 | |
31593dd6 AT |
554 | lock.l_type = F_WRLCK; |
555 | lock.l_whence = SEEK_SET; | |
556 | lock.l_start = offset; | |
557 | lock.l_len = len; | |
558 | lock.l_pid = 0; | |
559 | ||
560 | return fcntl(fd,F_SETLK,&lock) == 0; | |
0c515f17 | 561 | } |
874895d5 AT |
562 | |
563 | ||
cb13abfe | 564 | static void glob_expand_one(char *s, char **argv, int *argc, int maxargs) |
874895d5 | 565 | { |
932be9aa | 566 | #if !(defined(HAVE_GLOB) && defined(HAVE_GLOB_H)) |
e42c9458 | 567 | if (!*s) s = "."; |
087bf010 | 568 | argv[*argc] = strdup(s); |
874895d5 AT |
569 | (*argc)++; |
570 | return; | |
571 | #else | |
cb13abfe | 572 | extern int sanitize_paths; |
874895d5 AT |
573 | glob_t globbuf; |
574 | int i; | |
575 | ||
e42c9458 AT |
576 | if (!*s) s = "."; |
577 | ||
cb13abfe DD |
578 | argv[*argc] = strdup(s); |
579 | if (sanitize_paths) { | |
580 | sanitize_path(argv[*argc], NULL); | |
581 | } | |
087bf010 | 582 | |
874895d5 AT |
583 | memset(&globbuf, 0, sizeof(globbuf)); |
584 | glob(argv[*argc], 0, NULL, &globbuf); | |
585 | if (globbuf.gl_pathc == 0) { | |
586 | (*argc)++; | |
587 | globfree(&globbuf); | |
588 | return; | |
589 | } | |
a261989c | 590 | for (i=0; i<(maxargs - (*argc)) && i < (int) globbuf.gl_pathc;i++) { |
874895d5 AT |
591 | if (i == 0) free(argv[*argc]); |
592 | argv[(*argc) + i] = strdup(globbuf.gl_pathv[i]); | |
593 | if (!argv[(*argc) + i]) out_of_memory("glob_expand"); | |
594 | } | |
595 | globfree(&globbuf); | |
596 | (*argc) += i; | |
597 | #endif | |
598 | } | |
5a96ee05 | 599 | |
cb13abfe | 600 | void glob_expand(char *base1, char **argv, int *argc, int maxargs) |
087bf010 AT |
601 | { |
602 | char *s = argv[*argc]; | |
603 | char *p, *q; | |
ba5e128d | 604 | char *base = base1; |
087bf010 AT |
605 | |
606 | if (!s || !*s) return; | |
607 | ||
e42c9458 AT |
608 | if (strncmp(s, base, strlen(base)) == 0) { |
609 | s += strlen(base); | |
610 | } | |
611 | ||
087bf010 AT |
612 | s = strdup(s); |
613 | if (!s) out_of_memory("glob_expand"); | |
614 | ||
8950ac03 | 615 | if (asprintf(&base," %s/", base1) <= 0) out_of_memory("glob_expand"); |
ba5e128d | 616 | |
087bf010 AT |
617 | q = s; |
618 | while ((p = strstr(q,base)) && ((*argc) < maxargs)) { | |
ba5e128d AT |
619 | /* split it at this point */ |
620 | *p = 0; | |
cb13abfe | 621 | glob_expand_one(q, argv, argc, maxargs); |
ba5e128d | 622 | q = p+strlen(base); |
087bf010 AT |
623 | } |
624 | ||
cb13abfe | 625 | if (*q && (*argc < maxargs)) glob_expand_one(q, argv, argc, maxargs); |
087bf010 AT |
626 | |
627 | free(s); | |
ba5e128d | 628 | free(base); |
087bf010 | 629 | } |
5a96ee05 AT |
630 | |
631 | /******************************************************************* | |
632 | convert a string to lower case | |
633 | ********************************************************************/ | |
634 | void strlower(char *s) | |
635 | { | |
636 | while (*s) { | |
637 | if (isupper(*s)) *s = tolower(*s); | |
638 | s++; | |
639 | } | |
640 | } | |
e42c9458 | 641 | |
fe8c0a98 AT |
642 | void *Realloc(void *p, int size) |
643 | { | |
644 | if (!p) return (void *)malloc(size); | |
645 | return (void *)realloc(p, size); | |
646 | } | |
5243c216 AT |
647 | |
648 | ||
649 | void clean_fname(char *name) | |
650 | { | |
651 | char *p; | |
652 | int l; | |
653 | int modified = 1; | |
654 | ||
655 | if (!name) return; | |
656 | ||
657 | while (modified) { | |
658 | modified = 0; | |
659 | ||
660 | if ((p=strstr(name,"/./"))) { | |
661 | modified = 1; | |
662 | while (*p) { | |
663 | p[0] = p[2]; | |
664 | p++; | |
665 | } | |
666 | } | |
667 | ||
668 | if ((p=strstr(name,"//"))) { | |
669 | modified = 1; | |
670 | while (*p) { | |
671 | p[0] = p[1]; | |
672 | p++; | |
673 | } | |
674 | } | |
675 | ||
676 | if (strncmp(p=name,"./",2) == 0) { | |
677 | modified = 1; | |
678 | do { | |
679 | p[0] = p[2]; | |
680 | } while (*p++); | |
681 | } | |
682 | ||
683 | l = strlen(p=name); | |
684 | if (l > 1 && p[l-1] == '/') { | |
685 | modified = 1; | |
686 | p[l-1] = 0; | |
687 | } | |
688 | } | |
689 | } | |
690 | ||
1b8e662a DD |
691 | /* |
692 | * Make path appear as if a chroot had occurred: | |
1b8e662a | 693 | * 1. remove leading "/" (or replace with "." if at end) |
cb13abfe | 694 | * 2. remove leading ".." components (except those allowed by "reldir") |
1b8e662a | 695 | * 3. delete any other "<dir>/.." (recursively) |
79452d46 | 696 | * Can only shrink paths, so sanitizes in place. |
b5f9e67d DD |
697 | * While we're at it, remove double slashes and "." components like |
698 | * clean_fname does(), but DON'T remove a trailing slash because that | |
699 | * is sometimes significant on command line arguments. | |
79452d46 DD |
700 | * If "reldir" is non-null, it is a sanitized directory that the path will be |
701 | * relative to, so allow as many ".." at the beginning of the path as | |
702 | * there are components in reldir. This is used for symbolic link targets. | |
703 | * If reldir is non-null and the path began with "/", to be completely like | |
704 | * a chroot we should add in depth levels of ".." at the beginning of the | |
705 | * path, but that would blow the assumption that the path doesn't grow and | |
706 | * it is not likely to end up being a valid symlink anyway, so just do | |
707 | * the normal removal of the leading "/" instead. | |
1b8e662a DD |
708 | * Contributed by Dave Dykstra <dwd@bell-labs.com> |
709 | */ | |
710 | ||
cb13abfe | 711 | void sanitize_path(char *p, char *reldir) |
1b8e662a | 712 | { |
44e2e578 | 713 | char *start, *sanp; |
cb13abfe DD |
714 | int depth = 0; |
715 | int allowdotdot = 0; | |
716 | ||
717 | if (reldir) { | |
718 | depth++; | |
719 | while (*reldir) { | |
720 | if (*reldir++ == '/') { | |
721 | depth++; | |
722 | } | |
723 | } | |
724 | } | |
44e2e578 DD |
725 | start = p; |
726 | sanp = p; | |
b5f9e67d DD |
727 | while (*p == '/') { |
728 | /* remove leading slashes */ | |
729 | p++; | |
730 | } | |
1b8e662a | 731 | while (*p != '\0') { |
b5f9e67d | 732 | /* this loop iterates once per filename component in p. |
44e2e578 | 733 | * both p (and sanp if the original had a slash) should |
b5f9e67d DD |
734 | * always be left pointing after a slash |
735 | */ | |
736 | if ((*p == '.') && ((*(p+1) == '/') || (*(p+1) == '\0'))) { | |
737 | /* skip "." component */ | |
738 | while (*++p == '/') { | |
739 | /* skip following slashes */ | |
740 | ; | |
741 | } | |
cb13abfe DD |
742 | continue; |
743 | } | |
744 | allowdotdot = 0; | |
745 | if ((*p == '.') && (*(p+1) == '.') && | |
1b8e662a | 746 | ((*(p+2) == '/') || (*(p+2) == '\0'))) { |
cb13abfe DD |
747 | /* ".." component followed by slash or end */ |
748 | if ((depth > 0) && (sanp == start)) { | |
749 | /* allow depth levels of .. at the beginning */ | |
750 | --depth; | |
751 | allowdotdot = 1; | |
752 | } else { | |
753 | p += 2; | |
754 | if (*p == '/') | |
755 | p++; | |
756 | if (sanp != start) { | |
757 | /* back up sanp one level */ | |
758 | --sanp; /* now pointing at slash */ | |
759 | while ((sanp > start) && (*(sanp - 1) != '/')) { | |
760 | /* skip back up to slash */ | |
761 | sanp--; | |
762 | } | |
b5f9e67d | 763 | } |
cb13abfe | 764 | continue; |
1b8e662a | 765 | } |
cb13abfe DD |
766 | } |
767 | while (1) { | |
768 | /* copy one component through next slash */ | |
769 | *sanp++ = *p++; | |
770 | if ((*p == '\0') || (*(p-1) == '/')) { | |
771 | while (*p == '/') { | |
772 | /* skip multiple slashes */ | |
773 | p++; | |
b5f9e67d | 774 | } |
cb13abfe | 775 | break; |
1b8e662a DD |
776 | } |
777 | } | |
cb13abfe DD |
778 | if (allowdotdot) { |
779 | /* move the virtual beginning to leave the .. alone */ | |
780 | start = sanp; | |
781 | } | |
1b8e662a | 782 | } |
cb13abfe | 783 | if ((sanp == start) && !allowdotdot) { |
b5f9e67d | 784 | /* ended up with nothing, so put in "." component */ |
79452d46 DD |
785 | /* |
786 | * note that the !allowdotdot doesn't prevent this from | |
787 | * happening in all allowed ".." situations, but I didn't | |
788 | * think it was worth putting in an extra variable to ensure | |
789 | * it since an extra "." won't hurt in those situations. | |
790 | */ | |
44e2e578 | 791 | *sanp++ = '.'; |
b5f9e67d | 792 | } |
44e2e578 | 793 | *sanp = '\0'; |
1b8e662a DD |
794 | } |
795 | ||
5243c216 AT |
796 | |
797 | static char curr_dir[MAXPATHLEN]; | |
798 | ||
799 | /* like chdir() but can be reversed with pop_dir() if save is set. It | |
800 | is also much faster as it remembers where we have been */ | |
801 | char *push_dir(char *dir, int save) | |
802 | { | |
803 | char *ret = curr_dir; | |
804 | static int initialised; | |
805 | ||
806 | if (!initialised) { | |
807 | initialised = 1; | |
808 | getcwd(curr_dir, sizeof(curr_dir)-1); | |
809 | } | |
810 | ||
c226b7c2 DD |
811 | if (!dir) return NULL; /* this call was probably just to initialize */ |
812 | ||
5243c216 AT |
813 | if (chdir(dir)) return NULL; |
814 | ||
815 | if (save) { | |
816 | ret = strdup(curr_dir); | |
817 | } | |
818 | ||
819 | if (*dir == '/') { | |
37f9805d | 820 | strlcpy(curr_dir, dir, sizeof(curr_dir)); |
5243c216 | 821 | } else { |
37f9805d AT |
822 | strlcat(curr_dir,"/", sizeof(curr_dir)); |
823 | strlcat(curr_dir,dir, sizeof(curr_dir)); | |
5243c216 AT |
824 | } |
825 | ||
826 | clean_fname(curr_dir); | |
827 | ||
828 | return ret; | |
829 | } | |
830 | ||
831 | /* reverse a push_dir call */ | |
832 | int pop_dir(char *dir) | |
833 | { | |
834 | int ret; | |
835 | ||
836 | ret = chdir(dir); | |
837 | if (ret) { | |
838 | free(dir); | |
839 | return ret; | |
840 | } | |
841 | ||
37f9805d | 842 | strlcpy(curr_dir, dir, sizeof(curr_dir)); |
5243c216 AT |
843 | |
844 | free(dir); | |
845 | ||
846 | return 0; | |
847 | } | |
aa9b77a5 AT |
848 | |
849 | /* we need to supply our own strcmp function for file list comparisons | |
850 | to ensure that signed/unsigned usage is consistent between machines. */ | |
851 | int u_strcmp(const char *cs1, const char *cs2) | |
852 | { | |
5a788ade AT |
853 | const uchar *s1 = (const uchar *)cs1; |
854 | const uchar *s2 = (const uchar *)cs2; | |
aa9b77a5 AT |
855 | |
856 | while (*s1 && *s2 && (*s1 == *s2)) { | |
857 | s1++; s2++; | |
858 | } | |
859 | ||
860 | return (int)*s1 - (int)*s2; | |
861 | } | |
eb86d661 | 862 | |
47f1218d MP |
863 | static OFF_T last_ofs; |
864 | static struct timeval print_time; | |
865 | static struct timeval start_time; | |
866 | static OFF_T start_ofs; | |
867 | ||
868 | static unsigned long msdiff(struct timeval *t1, struct timeval *t2) | |
869 | { | |
870 | return (t2->tv_sec - t1->tv_sec) * 1000 | |
871 | + (t2->tv_usec - t1->tv_usec) / 1000; | |
872 | } | |
873 | ||
874 | ||
875 | /** | |
6066594b MP |
876 | * @param ofs Current position in file |
877 | * @param size Total size of file | |
47f1218d MP |
878 | * @param is_last True if this is the last time progress will be |
879 | * printed for this file, so we should output a newline. (Not | |
880 | * necessarily the same as all bytes being received.) | |
881 | **/ | |
882 | static void rprint_progress(OFF_T ofs, OFF_T size, struct timeval *now, | |
883 | int is_last) | |
884 | { | |
62791bdf | 885 | int pct = (ofs == size) ? 100 : (int)((100.0*ofs)/size); |
47f1218d | 886 | unsigned long diff = msdiff(&start_time, now); |
f9c3005b | 887 | double rate = diff ? (double) (ofs-start_ofs) * 1000.0 / diff / 1024.0 : 0; |
a9b31409 | 888 | const char *units; |
c579310a MP |
889 | /* If we've finished transferring this file, show the time taken; |
890 | * otherwise show expected time to complete. That's kind of | |
891 | * inconsistent, but people can probably cope. Hopefully we'll | |
892 | * get more consistent and complete progress reporting soon. -- | |
893 | * mbp */ | |
894 | double remain = is_last | |
895 | ? (double) diff / 1000.0 | |
896 | : rate ? (double) (size-ofs) / rate / 1000.0 : 0.0; | |
7007bdda | 897 | int remain_h, remain_m, remain_s; |
47f1218d | 898 | |
47f1218d MP |
899 | if (rate > 1024*1024) { |
900 | rate /= 1024.0 * 1024.0; | |
901 | units = "GB/s"; | |
902 | } else if (rate > 1024) { | |
903 | rate /= 1024.0; | |
904 | units = "MB/s"; | |
905 | } else { | |
906 | units = "kB/s"; | |
907 | } | |
62791bdf | 908 | |
7007bdda MP |
909 | remain_s = (int) remain % 60; |
910 | remain_m = (int) (remain / 60.0) % 60; | |
911 | remain_h = (int) (remain / 3600.0); | |
47f1218d | 912 | |
7007bdda | 913 | rprintf(FINFO, "%12.0f %3d%% %7.2f%s %4d:%02d:%02d%s", |
47f1218d | 914 | (double) ofs, pct, rate, units, |
7007bdda | 915 | remain_h, remain_m, remain_s, |
47f1218d MP |
916 | is_last ? "\n" : "\r"); |
917 | } | |
eb86d661 | 918 | |
166aa723 | 919 | void end_progress(OFF_T size) |
eb86d661 AT |
920 | { |
921 | extern int do_progress, am_server; | |
922 | ||
923 | if (do_progress && !am_server) { | |
47f1218d MP |
924 | struct timeval now; |
925 | gettimeofday(&now, NULL); | |
926 | rprint_progress(size, size, &now, True); | |
927 | } | |
928 | last_ofs = 0; | |
929 | start_ofs = 0; | |
930 | print_time.tv_sec = print_time.tv_usec = 0; | |
931 | start_time.tv_sec = start_time.tv_usec = 0; | |
eb86d661 AT |
932 | } |
933 | ||
934 | void show_progress(OFF_T ofs, OFF_T size) | |
935 | { | |
936 | extern int do_progress, am_server; | |
47f1218d MP |
937 | struct timeval now; |
938 | ||
939 | gettimeofday(&now, NULL); | |
940 | ||
941 | if (!start_time.tv_sec && !start_time.tv_usec) { | |
942 | start_time.tv_sec = now.tv_sec; | |
943 | start_time.tv_usec = now.tv_usec; | |
944 | start_ofs = ofs; | |
945 | } | |
946 | ||
947 | if (do_progress | |
948 | && !am_server | |
949 | && ofs > last_ofs + 1000 | |
950 | && msdiff(&print_time, &now) > 250) { | |
951 | rprint_progress(ofs, size, &now, False); | |
952 | last_ofs = ofs; | |
953 | print_time.tv_sec = now.tv_sec; | |
954 | print_time.tv_usec = now.tv_usec; | |
eb86d661 AT |
955 | } |
956 | } | |
4b957c22 AT |
957 | |
958 | /* determine if a symlink points outside the current directory tree */ | |
959 | int unsafe_symlink(char *dest, char *src) | |
960 | { | |
961 | char *tok; | |
962 | int depth = 0; | |
963 | ||
964 | /* all absolute and null symlinks are unsafe */ | |
965 | if (!dest || !(*dest) || (*dest == '/')) return 1; | |
966 | ||
967 | src = strdup(src); | |
968 | if (!src) out_of_memory("unsafe_symlink"); | |
969 | ||
970 | /* find out what our safety margin is */ | |
971 | for (tok=strtok(src,"/"); tok; tok=strtok(NULL,"/")) { | |
972 | if (strcmp(tok,"..") == 0) { | |
973 | depth=0; | |
974 | } else if (strcmp(tok,".") == 0) { | |
975 | /* nothing */ | |
976 | } else { | |
977 | depth++; | |
978 | } | |
979 | } | |
980 | free(src); | |
981 | ||
982 | /* drop by one to account for the filename portion */ | |
983 | depth--; | |
984 | ||
985 | dest = strdup(dest); | |
986 | if (!dest) out_of_memory("unsafe_symlink"); | |
987 | ||
988 | for (tok=strtok(dest,"/"); tok; tok=strtok(NULL,"/")) { | |
989 | if (strcmp(tok,"..") == 0) { | |
990 | depth--; | |
991 | } else if (strcmp(tok,".") == 0) { | |
992 | /* nothing */ | |
993 | } else { | |
994 | depth++; | |
995 | } | |
996 | /* if at any point we go outside the current directory then | |
997 | stop - it is unsafe */ | |
998 | if (depth < 0) break; | |
999 | } | |
1000 | ||
1001 | free(dest); | |
1002 | return (depth < 0); | |
1003 | } | |
375a4556 | 1004 | |
f7632fc6 AT |
1005 | |
1006 | /**************************************************************************** | |
1007 | return the date and time as a string | |
1008 | ****************************************************************************/ | |
1009 | char *timestring(time_t t) | |
1010 | { | |
1011 | static char TimeBuf[200]; | |
1012 | struct tm *tm = localtime(&t); | |
1013 | ||
1014 | #ifdef HAVE_STRFTIME | |
1015 | strftime(TimeBuf,sizeof(TimeBuf)-1,"%Y/%m/%d %T",tm); | |
1016 | #else | |
37f9805d | 1017 | strlcpy(TimeBuf, asctime(tm), sizeof(TimeBuf)); |
f7632fc6 AT |
1018 | #endif |
1019 | ||
1020 | if (TimeBuf[strlen(TimeBuf)-1] == '\n') { | |
1021 | TimeBuf[strlen(TimeBuf)-1] = 0; | |
1022 | } | |
1023 | ||
1024 | return(TimeBuf); | |
1025 | } | |
1026 | ||
9ec16c83 | 1027 | |
e1bd49d6 MP |
1028 | /** |
1029 | * Sleep for a specified number of milliseconds. | |
1030 | * | |
1031 | * Always returns TRUE. (In the future it might return FALSE if | |
1032 | * interrupted.) | |
1033 | **/ | |
1034 | int msleep(int t) | |
9ec16c83 AT |
1035 | { |
1036 | int tdiff=0; | |
1037 | struct timeval tval,t1,t2; | |
1038 | ||
1039 | gettimeofday(&t1, NULL); | |
1040 | gettimeofday(&t2, NULL); | |
1041 | ||
1042 | while (tdiff < t) { | |
1043 | tval.tv_sec = (t-tdiff)/1000; | |
1044 | tval.tv_usec = 1000*((t-tdiff)%1000); | |
1045 | ||
1046 | errno = 0; | |
1047 | select(0,NULL,NULL, NULL, &tval); | |
1048 | ||
1049 | gettimeofday(&t2, NULL); | |
1050 | tdiff = (t2.tv_sec - t1.tv_sec)*1000 + | |
1051 | (t2.tv_usec - t1.tv_usec)/1000; | |
1052 | } | |
e1bd49d6 MP |
1053 | |
1054 | return True; | |
9ec16c83 AT |
1055 | } |
1056 | ||
1057 | ||
5b56cc19 AT |
1058 | /******************************************************************* |
1059 | Determine if two file modification times are equivalent (either exact | |
1060 | or in the modification timestamp window established by --modify-window) | |
1061 | Returns 0 if the times should be treated as the same, 1 if the | |
1062 | first is later and -1 if the 2nd is later | |
1063 | *******************************************************************/ | |
1064 | int cmp_modtime(time_t file1, time_t file2) | |
1065 | { | |
5b56cc19 AT |
1066 | extern int modify_window; |
1067 | ||
1068 | if (file2 > file1) { | |
1069 | if (file2 - file1 <= modify_window) return 0; | |
1070 | return -1; | |
1071 | } | |
1072 | if (file1 - file2 <= modify_window) return 0; | |
1073 | return 1; | |
1074 | } | |
1075 | ||
1076 | ||
1077 | #ifdef __INSURE__XX | |
0f8f98c8 AT |
1078 | #include <dlfcn.h> |
1079 | ||
1080 | /******************************************************************* | |
1081 | This routine is a trick to immediately catch errors when debugging | |
1082 | with insure. A xterm with a gdb is popped up when insure catches | |
1083 | a error. It is Linux specific. | |
1084 | ********************************************************************/ | |
1085 | int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6) | |
1086 | { | |
1087 | static int (*fn)(); | |
1088 | int ret; | |
8950ac03 | 1089 | char *cmd; |
0f8f98c8 | 1090 | |
8950ac03 | 1091 | 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 |
1092 | getpid(), getpid(), getpid()); |
1093 | ||
1094 | if (!fn) { | |
1095 | static void *h; | |
1096 | h = dlopen("/usr/local/parasoft/insure++lite/lib.linux2/libinsure.so", RTLD_LAZY); | |
1097 | fn = dlsym(h, "_Insure_trap_error"); | |
1098 | } | |
1099 | ||
1100 | ret = fn(a1, a2, a3, a4, a5, a6); | |
1101 | ||
1102 | system(cmd); | |
1103 | ||
8950ac03 AT |
1104 | free(cmd); |
1105 | ||
0f8f98c8 AT |
1106 | return ret; |
1107 | } | |
1108 | #endif |