Commit | Line | Data |
---|---|---|
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 | ||
481 | /* fork and record the pid of the child */ | |
482 | pid_t do_fork(void) | |
483 | { | |
484 | pid_t newpid = fork(); | |
485 | ||
486 | if (newpid) { | |
487 | all_pids[num_pids++] = newpid; | |
488 | } | |
489 | return newpid; | |
490 | } | |
491 | ||
492 | /* kill all children */ | |
493 | void kill_all(int sig) | |
494 | { | |
495 | int i; | |
496 | for (i=0;i<num_pids;i++) { | |
497 | if (all_pids[i] != getpid()) | |
498 | kill(all_pids[i], sig); | |
499 | } | |
500 | } | |
9486289c | 501 | |
8ef4ffd6 AT |
502 | /* turn a user name into a uid */ |
503 | int name_to_uid(char *name, uid_t *uid) | |
504 | { | |
505 | struct passwd *pass; | |
506 | if (!name || !*name) return 0; | |
507 | pass = getpwnam(name); | |
508 | if (pass) { | |
509 | *uid = pass->pw_uid; | |
510 | return 1; | |
511 | } | |
512 | return 0; | |
513 | } | |
514 | ||
515 | /* turn a group name into a gid */ | |
516 | int name_to_gid(char *name, gid_t *gid) | |
517 | { | |
518 | struct group *grp; | |
519 | if (!name || !*name) return 0; | |
520 | grp = getgrnam(name); | |
521 | if (grp) { | |
522 | *gid = grp->gr_gid; | |
523 | return 1; | |
524 | } | |
525 | return 0; | |
526 | } | |
527 | ||
ff8b29b8 | 528 | |
31593dd6 AT |
529 | /* lock a byte range in a open file */ |
530 | int lock_range(int fd, int offset, int len) | |
0c515f17 | 531 | { |
31593dd6 | 532 | struct flock lock; |
0c515f17 | 533 | |
31593dd6 AT |
534 | lock.l_type = F_WRLCK; |
535 | lock.l_whence = SEEK_SET; | |
536 | lock.l_start = offset; | |
537 | lock.l_len = len; | |
538 | lock.l_pid = 0; | |
539 | ||
540 | return fcntl(fd,F_SETLK,&lock) == 0; | |
0c515f17 | 541 | } |
874895d5 AT |
542 | |
543 | ||
cb13abfe | 544 | static void glob_expand_one(char *s, char **argv, int *argc, int maxargs) |
874895d5 | 545 | { |
932be9aa | 546 | #if !(defined(HAVE_GLOB) && defined(HAVE_GLOB_H)) |
e42c9458 | 547 | if (!*s) s = "."; |
087bf010 | 548 | argv[*argc] = strdup(s); |
874895d5 AT |
549 | (*argc)++; |
550 | return; | |
551 | #else | |
cb13abfe | 552 | extern int sanitize_paths; |
874895d5 AT |
553 | glob_t globbuf; |
554 | int i; | |
555 | ||
e42c9458 AT |
556 | if (!*s) s = "."; |
557 | ||
cb13abfe DD |
558 | argv[*argc] = strdup(s); |
559 | if (sanitize_paths) { | |
560 | sanitize_path(argv[*argc], NULL); | |
561 | } | |
087bf010 | 562 | |
874895d5 AT |
563 | memset(&globbuf, 0, sizeof(globbuf)); |
564 | glob(argv[*argc], 0, NULL, &globbuf); | |
565 | if (globbuf.gl_pathc == 0) { | |
566 | (*argc)++; | |
567 | globfree(&globbuf); | |
568 | return; | |
569 | } | |
a261989c | 570 | for (i=0; i<(maxargs - (*argc)) && i < (int) globbuf.gl_pathc;i++) { |
874895d5 AT |
571 | if (i == 0) free(argv[*argc]); |
572 | argv[(*argc) + i] = strdup(globbuf.gl_pathv[i]); | |
573 | if (!argv[(*argc) + i]) out_of_memory("glob_expand"); | |
574 | } | |
575 | globfree(&globbuf); | |
576 | (*argc) += i; | |
577 | #endif | |
578 | } | |
5a96ee05 | 579 | |
cb13abfe | 580 | void glob_expand(char *base1, char **argv, int *argc, int maxargs) |
087bf010 AT |
581 | { |
582 | char *s = argv[*argc]; | |
583 | char *p, *q; | |
ba5e128d | 584 | char *base = base1; |
087bf010 AT |
585 | |
586 | if (!s || !*s) return; | |
587 | ||
e42c9458 AT |
588 | if (strncmp(s, base, strlen(base)) == 0) { |
589 | s += strlen(base); | |
590 | } | |
591 | ||
087bf010 AT |
592 | s = strdup(s); |
593 | if (!s) out_of_memory("glob_expand"); | |
594 | ||
8950ac03 | 595 | if (asprintf(&base," %s/", base1) <= 0) out_of_memory("glob_expand"); |
ba5e128d | 596 | |
087bf010 AT |
597 | q = s; |
598 | while ((p = strstr(q,base)) && ((*argc) < maxargs)) { | |
ba5e128d AT |
599 | /* split it at this point */ |
600 | *p = 0; | |
cb13abfe | 601 | glob_expand_one(q, argv, argc, maxargs); |
ba5e128d | 602 | q = p+strlen(base); |
087bf010 AT |
603 | } |
604 | ||
cb13abfe | 605 | if (*q && (*argc < maxargs)) glob_expand_one(q, argv, argc, maxargs); |
087bf010 AT |
606 | |
607 | free(s); | |
ba5e128d | 608 | free(base); |
087bf010 | 609 | } |
5a96ee05 AT |
610 | |
611 | /******************************************************************* | |
612 | convert a string to lower case | |
613 | ********************************************************************/ | |
614 | void strlower(char *s) | |
615 | { | |
616 | while (*s) { | |
617 | if (isupper(*s)) *s = tolower(*s); | |
618 | s++; | |
619 | } | |
620 | } | |
e42c9458 | 621 | |
fe8c0a98 AT |
622 | void *Realloc(void *p, int size) |
623 | { | |
624 | if (!p) return (void *)malloc(size); | |
625 | return (void *)realloc(p, size); | |
626 | } | |
5243c216 AT |
627 | |
628 | ||
629 | void clean_fname(char *name) | |
630 | { | |
631 | char *p; | |
632 | int l; | |
633 | int modified = 1; | |
634 | ||
635 | if (!name) return; | |
636 | ||
637 | while (modified) { | |
638 | modified = 0; | |
639 | ||
640 | if ((p=strstr(name,"/./"))) { | |
641 | modified = 1; | |
642 | while (*p) { | |
643 | p[0] = p[2]; | |
644 | p++; | |
645 | } | |
646 | } | |
647 | ||
648 | if ((p=strstr(name,"//"))) { | |
649 | modified = 1; | |
650 | while (*p) { | |
651 | p[0] = p[1]; | |
652 | p++; | |
653 | } | |
654 | } | |
655 | ||
656 | if (strncmp(p=name,"./",2) == 0) { | |
657 | modified = 1; | |
658 | do { | |
659 | p[0] = p[2]; | |
660 | } while (*p++); | |
661 | } | |
662 | ||
663 | l = strlen(p=name); | |
664 | if (l > 1 && p[l-1] == '/') { | |
665 | modified = 1; | |
666 | p[l-1] = 0; | |
667 | } | |
668 | } | |
669 | } | |
670 | ||
1b8e662a DD |
671 | /* |
672 | * Make path appear as if a chroot had occurred: | |
1b8e662a | 673 | * 1. remove leading "/" (or replace with "." if at end) |
cb13abfe | 674 | * 2. remove leading ".." components (except those allowed by "reldir") |
1b8e662a | 675 | * 3. delete any other "<dir>/.." (recursively) |
79452d46 | 676 | * Can only shrink paths, so sanitizes in place. |
b5f9e67d DD |
677 | * While we're at it, remove double slashes and "." components like |
678 | * clean_fname does(), but DON'T remove a trailing slash because that | |
679 | * is sometimes significant on command line arguments. | |
79452d46 DD |
680 | * If "reldir" is non-null, it is a sanitized directory that the path will be |
681 | * relative to, so allow as many ".." at the beginning of the path as | |
682 | * there are components in reldir. This is used for symbolic link targets. | |
683 | * If reldir is non-null and the path began with "/", to be completely like | |
684 | * a chroot we should add in depth levels of ".." at the beginning of the | |
685 | * path, but that would blow the assumption that the path doesn't grow and | |
686 | * it is not likely to end up being a valid symlink anyway, so just do | |
687 | * the normal removal of the leading "/" instead. | |
1b8e662a DD |
688 | * Contributed by Dave Dykstra <dwd@bell-labs.com> |
689 | */ | |
690 | ||
cb13abfe | 691 | void sanitize_path(char *p, char *reldir) |
1b8e662a | 692 | { |
44e2e578 | 693 | char *start, *sanp; |
cb13abfe DD |
694 | int depth = 0; |
695 | int allowdotdot = 0; | |
696 | ||
697 | if (reldir) { | |
698 | depth++; | |
699 | while (*reldir) { | |
700 | if (*reldir++ == '/') { | |
701 | depth++; | |
702 | } | |
703 | } | |
704 | } | |
44e2e578 DD |
705 | start = p; |
706 | sanp = p; | |
b5f9e67d DD |
707 | while (*p == '/') { |
708 | /* remove leading slashes */ | |
709 | p++; | |
710 | } | |
1b8e662a | 711 | while (*p != '\0') { |
b5f9e67d | 712 | /* this loop iterates once per filename component in p. |
44e2e578 | 713 | * both p (and sanp if the original had a slash) should |
b5f9e67d DD |
714 | * always be left pointing after a slash |
715 | */ | |
716 | if ((*p == '.') && ((*(p+1) == '/') || (*(p+1) == '\0'))) { | |
717 | /* skip "." component */ | |
718 | while (*++p == '/') { | |
719 | /* skip following slashes */ | |
720 | ; | |
721 | } | |
cb13abfe DD |
722 | continue; |
723 | } | |
724 | allowdotdot = 0; | |
725 | if ((*p == '.') && (*(p+1) == '.') && | |
1b8e662a | 726 | ((*(p+2) == '/') || (*(p+2) == '\0'))) { |
cb13abfe DD |
727 | /* ".." component followed by slash or end */ |
728 | if ((depth > 0) && (sanp == start)) { | |
729 | /* allow depth levels of .. at the beginning */ | |
730 | --depth; | |
731 | allowdotdot = 1; | |
732 | } else { | |
733 | p += 2; | |
734 | if (*p == '/') | |
735 | p++; | |
736 | if (sanp != start) { | |
737 | /* back up sanp one level */ | |
738 | --sanp; /* now pointing at slash */ | |
739 | while ((sanp > start) && (*(sanp - 1) != '/')) { | |
740 | /* skip back up to slash */ | |
741 | sanp--; | |
742 | } | |
b5f9e67d | 743 | } |
cb13abfe | 744 | continue; |
1b8e662a | 745 | } |
cb13abfe DD |
746 | } |
747 | while (1) { | |
748 | /* copy one component through next slash */ | |
749 | *sanp++ = *p++; | |
750 | if ((*p == '\0') || (*(p-1) == '/')) { | |
751 | while (*p == '/') { | |
752 | /* skip multiple slashes */ | |
753 | p++; | |
b5f9e67d | 754 | } |
cb13abfe | 755 | break; |
1b8e662a DD |
756 | } |
757 | } | |
cb13abfe DD |
758 | if (allowdotdot) { |
759 | /* move the virtual beginning to leave the .. alone */ | |
760 | start = sanp; | |
761 | } | |
1b8e662a | 762 | } |
cb13abfe | 763 | if ((sanp == start) && !allowdotdot) { |
b5f9e67d | 764 | /* ended up with nothing, so put in "." component */ |
79452d46 DD |
765 | /* |
766 | * note that the !allowdotdot doesn't prevent this from | |
767 | * happening in all allowed ".." situations, but I didn't | |
768 | * think it was worth putting in an extra variable to ensure | |
769 | * it since an extra "." won't hurt in those situations. | |
770 | */ | |
44e2e578 | 771 | *sanp++ = '.'; |
b5f9e67d | 772 | } |
44e2e578 | 773 | *sanp = '\0'; |
1b8e662a DD |
774 | } |
775 | ||
5243c216 AT |
776 | |
777 | static char curr_dir[MAXPATHLEN]; | |
778 | ||
779 | /* like chdir() but can be reversed with pop_dir() if save is set. It | |
780 | is also much faster as it remembers where we have been */ | |
781 | char *push_dir(char *dir, int save) | |
782 | { | |
783 | char *ret = curr_dir; | |
784 | static int initialised; | |
785 | ||
786 | if (!initialised) { | |
787 | initialised = 1; | |
788 | getcwd(curr_dir, sizeof(curr_dir)-1); | |
789 | } | |
790 | ||
c226b7c2 DD |
791 | if (!dir) return NULL; /* this call was probably just to initialize */ |
792 | ||
5243c216 AT |
793 | if (chdir(dir)) return NULL; |
794 | ||
795 | if (save) { | |
796 | ret = strdup(curr_dir); | |
797 | } | |
798 | ||
799 | if (*dir == '/') { | |
37f9805d | 800 | strlcpy(curr_dir, dir, sizeof(curr_dir)); |
5243c216 | 801 | } else { |
37f9805d AT |
802 | strlcat(curr_dir,"/", sizeof(curr_dir)); |
803 | strlcat(curr_dir,dir, sizeof(curr_dir)); | |
5243c216 AT |
804 | } |
805 | ||
806 | clean_fname(curr_dir); | |
807 | ||
808 | return ret; | |
809 | } | |
810 | ||
811 | /* reverse a push_dir call */ | |
812 | int pop_dir(char *dir) | |
813 | { | |
814 | int ret; | |
815 | ||
816 | ret = chdir(dir); | |
817 | if (ret) { | |
818 | free(dir); | |
819 | return ret; | |
820 | } | |
821 | ||
37f9805d | 822 | strlcpy(curr_dir, dir, sizeof(curr_dir)); |
5243c216 AT |
823 | |
824 | free(dir); | |
825 | ||
826 | return 0; | |
827 | } | |
aa9b77a5 AT |
828 | |
829 | /* we need to supply our own strcmp function for file list comparisons | |
830 | to ensure that signed/unsigned usage is consistent between machines. */ | |
831 | int u_strcmp(const char *cs1, const char *cs2) | |
832 | { | |
5a788ade AT |
833 | const uchar *s1 = (const uchar *)cs1; |
834 | const uchar *s2 = (const uchar *)cs2; | |
aa9b77a5 AT |
835 | |
836 | while (*s1 && *s2 && (*s1 == *s2)) { | |
837 | s1++; s2++; | |
838 | } | |
839 | ||
840 | return (int)*s1 - (int)*s2; | |
841 | } | |
eb86d661 | 842 | |
47f1218d MP |
843 | static OFF_T last_ofs; |
844 | static struct timeval print_time; | |
845 | static struct timeval start_time; | |
846 | static OFF_T start_ofs; | |
847 | ||
848 | static unsigned long msdiff(struct timeval *t1, struct timeval *t2) | |
849 | { | |
850 | return (t2->tv_sec - t1->tv_sec) * 1000 | |
851 | + (t2->tv_usec - t1->tv_usec) / 1000; | |
852 | } | |
853 | ||
854 | ||
855 | /** | |
6066594b MP |
856 | * @param ofs Current position in file |
857 | * @param size Total size of file | |
47f1218d MP |
858 | * @param is_last True if this is the last time progress will be |
859 | * printed for this file, so we should output a newline. (Not | |
860 | * necessarily the same as all bytes being received.) | |
861 | **/ | |
862 | static void rprint_progress(OFF_T ofs, OFF_T size, struct timeval *now, | |
863 | int is_last) | |
864 | { | |
62791bdf | 865 | int pct = (ofs == size) ? 100 : (int)((100.0*ofs)/size); |
47f1218d | 866 | unsigned long diff = msdiff(&start_time, now); |
f9c3005b | 867 | double rate = diff ? (double) (ofs-start_ofs) * 1000.0 / diff / 1024.0 : 0; |
a9b31409 | 868 | const char *units; |
f9c3005b | 869 | double remain = rate ? (double) (size-ofs) / rate / 1000.0: 0.0; |
7007bdda | 870 | int remain_h, remain_m, remain_s; |
47f1218d | 871 | |
47f1218d MP |
872 | if (rate > 1024*1024) { |
873 | rate /= 1024.0 * 1024.0; | |
874 | units = "GB/s"; | |
875 | } else if (rate > 1024) { | |
876 | rate /= 1024.0; | |
877 | units = "MB/s"; | |
878 | } else { | |
879 | units = "kB/s"; | |
880 | } | |
62791bdf | 881 | |
7007bdda MP |
882 | remain_s = (int) remain % 60; |
883 | remain_m = (int) (remain / 60.0) % 60; | |
884 | remain_h = (int) (remain / 3600.0); | |
47f1218d | 885 | |
7007bdda | 886 | rprintf(FINFO, "%12.0f %3d%% %7.2f%s %4d:%02d:%02d%s", |
47f1218d | 887 | (double) ofs, pct, rate, units, |
7007bdda | 888 | remain_h, remain_m, remain_s, |
47f1218d MP |
889 | is_last ? "\n" : "\r"); |
890 | } | |
eb86d661 | 891 | |
166aa723 | 892 | void end_progress(OFF_T size) |
eb86d661 AT |
893 | { |
894 | extern int do_progress, am_server; | |
895 | ||
896 | if (do_progress && !am_server) { | |
47f1218d MP |
897 | struct timeval now; |
898 | gettimeofday(&now, NULL); | |
899 | rprint_progress(size, size, &now, True); | |
900 | } | |
901 | last_ofs = 0; | |
902 | start_ofs = 0; | |
903 | print_time.tv_sec = print_time.tv_usec = 0; | |
904 | start_time.tv_sec = start_time.tv_usec = 0; | |
eb86d661 AT |
905 | } |
906 | ||
907 | void show_progress(OFF_T ofs, OFF_T size) | |
908 | { | |
909 | extern int do_progress, am_server; | |
47f1218d MP |
910 | struct timeval now; |
911 | ||
912 | gettimeofday(&now, NULL); | |
913 | ||
914 | if (!start_time.tv_sec && !start_time.tv_usec) { | |
915 | start_time.tv_sec = now.tv_sec; | |
916 | start_time.tv_usec = now.tv_usec; | |
917 | start_ofs = ofs; | |
918 | } | |
919 | ||
920 | if (do_progress | |
921 | && !am_server | |
922 | && ofs > last_ofs + 1000 | |
923 | && msdiff(&print_time, &now) > 250) { | |
924 | rprint_progress(ofs, size, &now, False); | |
925 | last_ofs = ofs; | |
926 | print_time.tv_sec = now.tv_sec; | |
927 | print_time.tv_usec = now.tv_usec; | |
eb86d661 AT |
928 | } |
929 | } | |
4b957c22 AT |
930 | |
931 | /* determine if a symlink points outside the current directory tree */ | |
932 | int unsafe_symlink(char *dest, char *src) | |
933 | { | |
934 | char *tok; | |
935 | int depth = 0; | |
936 | ||
937 | /* all absolute and null symlinks are unsafe */ | |
938 | if (!dest || !(*dest) || (*dest == '/')) return 1; | |
939 | ||
940 | src = strdup(src); | |
941 | if (!src) out_of_memory("unsafe_symlink"); | |
942 | ||
943 | /* find out what our safety margin is */ | |
944 | for (tok=strtok(src,"/"); tok; tok=strtok(NULL,"/")) { | |
945 | if (strcmp(tok,"..") == 0) { | |
946 | depth=0; | |
947 | } else if (strcmp(tok,".") == 0) { | |
948 | /* nothing */ | |
949 | } else { | |
950 | depth++; | |
951 | } | |
952 | } | |
953 | free(src); | |
954 | ||
955 | /* drop by one to account for the filename portion */ | |
956 | depth--; | |
957 | ||
958 | dest = strdup(dest); | |
959 | if (!dest) out_of_memory("unsafe_symlink"); | |
960 | ||
961 | for (tok=strtok(dest,"/"); tok; tok=strtok(NULL,"/")) { | |
962 | if (strcmp(tok,"..") == 0) { | |
963 | depth--; | |
964 | } else if (strcmp(tok,".") == 0) { | |
965 | /* nothing */ | |
966 | } else { | |
967 | depth++; | |
968 | } | |
969 | /* if at any point we go outside the current directory then | |
970 | stop - it is unsafe */ | |
971 | if (depth < 0) break; | |
972 | } | |
973 | ||
974 | free(dest); | |
975 | return (depth < 0); | |
976 | } | |
375a4556 | 977 | |
f7632fc6 AT |
978 | |
979 | /**************************************************************************** | |
980 | return the date and time as a string | |
981 | ****************************************************************************/ | |
982 | char *timestring(time_t t) | |
983 | { | |
984 | static char TimeBuf[200]; | |
985 | struct tm *tm = localtime(&t); | |
986 | ||
987 | #ifdef HAVE_STRFTIME | |
988 | strftime(TimeBuf,sizeof(TimeBuf)-1,"%Y/%m/%d %T",tm); | |
989 | #else | |
37f9805d | 990 | strlcpy(TimeBuf, asctime(tm), sizeof(TimeBuf)); |
f7632fc6 AT |
991 | #endif |
992 | ||
993 | if (TimeBuf[strlen(TimeBuf)-1] == '\n') { | |
994 | TimeBuf[strlen(TimeBuf)-1] = 0; | |
995 | } | |
996 | ||
997 | return(TimeBuf); | |
998 | } | |
999 | ||
9ec16c83 | 1000 | |
e1bd49d6 MP |
1001 | /** |
1002 | * Sleep for a specified number of milliseconds. | |
1003 | * | |
1004 | * Always returns TRUE. (In the future it might return FALSE if | |
1005 | * interrupted.) | |
1006 | **/ | |
1007 | int msleep(int t) | |
9ec16c83 AT |
1008 | { |
1009 | int tdiff=0; | |
1010 | struct timeval tval,t1,t2; | |
1011 | ||
1012 | gettimeofday(&t1, NULL); | |
1013 | gettimeofday(&t2, NULL); | |
1014 | ||
1015 | while (tdiff < t) { | |
1016 | tval.tv_sec = (t-tdiff)/1000; | |
1017 | tval.tv_usec = 1000*((t-tdiff)%1000); | |
1018 | ||
1019 | errno = 0; | |
1020 | select(0,NULL,NULL, NULL, &tval); | |
1021 | ||
1022 | gettimeofday(&t2, NULL); | |
1023 | tdiff = (t2.tv_sec - t1.tv_sec)*1000 + | |
1024 | (t2.tv_usec - t1.tv_usec)/1000; | |
1025 | } | |
e1bd49d6 MP |
1026 | |
1027 | return True; | |
9ec16c83 AT |
1028 | } |
1029 | ||
1030 | ||
5b56cc19 AT |
1031 | /******************************************************************* |
1032 | Determine if two file modification times are equivalent (either exact | |
1033 | or in the modification timestamp window established by --modify-window) | |
1034 | Returns 0 if the times should be treated as the same, 1 if the | |
1035 | first is later and -1 if the 2nd is later | |
1036 | *******************************************************************/ | |
1037 | int cmp_modtime(time_t file1, time_t file2) | |
1038 | { | |
5b56cc19 AT |
1039 | extern int modify_window; |
1040 | ||
1041 | if (file2 > file1) { | |
1042 | if (file2 - file1 <= modify_window) return 0; | |
1043 | return -1; | |
1044 | } | |
1045 | if (file1 - file2 <= modify_window) return 0; | |
1046 | return 1; | |
1047 | } | |
1048 | ||
1049 | ||
1050 | #ifdef __INSURE__XX | |
0f8f98c8 AT |
1051 | #include <dlfcn.h> |
1052 | ||
1053 | /******************************************************************* | |
1054 | This routine is a trick to immediately catch errors when debugging | |
1055 | with insure. A xterm with a gdb is popped up when insure catches | |
1056 | a error. It is Linux specific. | |
1057 | ********************************************************************/ | |
1058 | int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6) | |
1059 | { | |
1060 | static int (*fn)(); | |
1061 | int ret; | |
8950ac03 | 1062 | char *cmd; |
0f8f98c8 | 1063 | |
8950ac03 | 1064 | 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 |
1065 | getpid(), getpid(), getpid()); |
1066 | ||
1067 | if (!fn) { | |
1068 | static void *h; | |
1069 | h = dlopen("/usr/local/parasoft/insure++lite/lib.linux2/libinsure.so", RTLD_LAZY); | |
1070 | fn = dlsym(h, "_Insure_trap_error"); | |
1071 | } | |
1072 | ||
1073 | ret = fn(a1, a2, a3, a4, a5, a6); | |
1074 | ||
1075 | system(cmd); | |
1076 | ||
8950ac03 AT |
1077 | free(cmd); |
1078 | ||
0f8f98c8 AT |
1079 | return ret; |
1080 | } | |
1081 | #endif |