Commit | Line | Data |
---|---|---|
c627d613 AT |
1 | /* |
2 | Copyright (C) Andrew Tridgell 1996 | |
3 | Copyright (C) Paul Mackerras 1996 | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the Free Software | |
17 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
18 | */ | |
19 | ||
20 | /* | |
21 | Utilities used in rsync | |
22 | ||
23 | tridge, June 1996 | |
24 | */ | |
25 | #include "rsync.h" | |
26 | ||
720b47f2 | 27 | int num_waiting(int fd) |
94481d91 AT |
28 | { |
29 | int len=0; | |
94481d91 | 30 | ioctl(fd,FIONREAD,&len); |
94481d91 AT |
31 | return(len); |
32 | } | |
33 | ||
d9bea2dd | 34 | |
bcacc18b | 35 | struct map_struct *map_file(int fd,OFF_T len) |
c627d613 | 36 | { |
754d120c AT |
37 | struct map_struct *ret; |
38 | ret = (struct map_struct *)malloc(sizeof(*ret)); | |
39 | if (!ret) out_of_memory("map_file"); | |
40 | ||
41 | ret->map = NULL; | |
42 | ret->fd = fd; | |
43 | ret->size = len; | |
44 | ret->p = NULL; | |
45 | ret->p_size = 0; | |
46 | ret->p_offset = 0; | |
47 | ret->p_len = 0; | |
c6e7fcb4 | 48 | |
d9bea2dd | 49 | #ifdef HAVE_MMAP |
754d120c AT |
50 | len = MIN(len, MAX_MAP_SIZE); |
51 | ret->map = (char *)do_mmap(NULL,len,PROT_READ,MAP_SHARED,fd,0); | |
52 | if (ret->map == (char *)-1) { | |
53 | ret->map = NULL; | |
54 | } else { | |
55 | ret->p_len = len; | |
56 | } | |
d9bea2dd | 57 | #endif |
754d120c | 58 | return ret; |
c627d613 AT |
59 | } |
60 | ||
0b910560 | 61 | |
bcacc18b | 62 | char *map_ptr(struct map_struct *map,OFF_T offset,int len) |
d9bea2dd | 63 | { |
3e607d23 AT |
64 | int nread; |
65 | ||
3e607d23 AT |
66 | if (len == 0) |
67 | return NULL; | |
68 | ||
69 | if (len > (map->size-offset)) | |
70 | len = map->size-offset; | |
71 | ||
e24c8508 | 72 | #ifdef HAVE_MMAP |
754d120c AT |
73 | if (map->map) { |
74 | if (offset >= map->p_offset && | |
75 | offset+len <= map->p_offset+map->p_len) { | |
76 | return (map->map + (offset - map->p_offset)); | |
77 | } | |
78 | if (munmap(map->map, map->p_len) != 0) { | |
79 | rprintf(FERROR,"munmap failed : %s\n", strerror(errno)); | |
80 | exit_cleanup(1); | |
81 | } | |
82 | ||
83 | /* align the mmap region on a nice boundary back a bit from | |
84 | where it is asked for to allow for some seeking */ | |
85 | if (offset > 2*CHUNK_SIZE) { | |
86 | map->p_offset = offset - 2*CHUNK_SIZE; | |
87 | map->p_offset &= ~((OFF_T)(CHUNK_SIZE-1)); | |
88 | } else { | |
89 | map->p_offset = 0; | |
90 | } | |
91 | ||
92 | /* map up to MAX_MAP_SIZE */ | |
93 | map->p_len = MAX(len, MAX_MAP_SIZE); | |
94 | map->p_len = MIN(map->p_len, map->size - map->p_offset); | |
95 | ||
96 | map->map = (char *)do_mmap(NULL,map->p_len,PROT_READ, | |
97 | MAP_SHARED,map->fd,map->p_offset); | |
98 | ||
99 | if (map->map == (char *)-1) { | |
100 | map->map = NULL; | |
101 | map->p_len = 0; | |
102 | map->p_offset = 0; | |
103 | } else { | |
104 | return (map->map + (offset - map->p_offset)); | |
105 | } | |
106 | } | |
e24c8508 | 107 | #endif |
754d120c | 108 | |
3e607d23 AT |
109 | if (offset >= map->p_offset && |
110 | offset+len <= map->p_offset+map->p_len) { | |
111 | return (map->p + (offset - map->p_offset)); | |
112 | } | |
113 | ||
114 | len = MAX(len,CHUNK_SIZE); | |
115 | if (len > (map->size-offset)) | |
116 | len = map->size-offset; | |
117 | ||
118 | if (len > map->p_size) { | |
119 | if (map->p) free(map->p); | |
120 | map->p = (char *)malloc(len); | |
121 | if (!map->p) out_of_memory("map_ptr"); | |
122 | map->p_size = len; | |
123 | } | |
124 | ||
125 | map->p_offset = offset; | |
126 | map->p_len = len; | |
127 | ||
128 | if (do_lseek(map->fd,offset,SEEK_SET) != offset) { | |
129 | rprintf(FERROR,"lseek failed in map_ptr\n"); | |
130 | exit_cleanup(1); | |
131 | } | |
132 | ||
133 | if ((nread=read(map->fd,map->p,len)) != len) { | |
134 | if (nread < 0) nread = 0; | |
135 | /* the best we can do is zero the buffer - the file | |
136 | has changed mid transfer! */ | |
137 | memset(map->p+nread, 0, len - nread); | |
138 | } | |
139 | ||
140 | return map->p; | |
d9bea2dd AT |
141 | } |
142 | ||
143 | ||
c6e7fcb4 | 144 | void unmap_file(struct map_struct *map) |
c627d613 | 145 | { |
7bec6a5c | 146 | #ifdef HAVE_MMAP |
754d120c AT |
147 | if (map->map) { |
148 | munmap(map->map,map->p_len); | |
149 | map->map = NULL; | |
150 | } | |
7bec6a5c | 151 | #endif |
754d120c AT |
152 | if (map->p) { |
153 | free(map->p); | |
154 | map->p = NULL; | |
155 | } | |
156 | memset(map, 0, sizeof(*map)); | |
157 | free(map); | |
c627d613 AT |
158 | } |
159 | ||
160 | ||
c627d613 AT |
161 | /* this is taken from CVS */ |
162 | int piped_child(char **command,int *f_in,int *f_out) | |
163 | { | |
164 | int pid; | |
165 | int to_child_pipe[2]; | |
166 | int from_child_pipe[2]; | |
167 | ||
168 | if (pipe(to_child_pipe) < 0 || | |
169 | pipe(from_child_pipe) < 0) { | |
9486289c | 170 | rprintf(FERROR,"pipe: %s\n",strerror(errno)); |
34ccb63e | 171 | exit_cleanup(1); |
c627d613 AT |
172 | } |
173 | ||
174 | ||
3ba62a83 | 175 | pid = do_fork(); |
c627d613 | 176 | if (pid < 0) { |
9486289c | 177 | rprintf(FERROR,"fork: %s\n",strerror(errno)); |
34ccb63e | 178 | exit_cleanup(1); |
c627d613 AT |
179 | } |
180 | ||
181 | if (pid == 0) | |
182 | { | |
6574b4f7 | 183 | extern int orig_umask; |
c627d613 AT |
184 | if (dup2(to_child_pipe[0], STDIN_FILENO) < 0 || |
185 | close(to_child_pipe[1]) < 0 || | |
186 | close(from_child_pipe[0]) < 0 || | |
187 | dup2(from_child_pipe[1], STDOUT_FILENO) < 0) { | |
9486289c | 188 | rprintf(FERROR,"Failed to dup/close : %s\n",strerror(errno)); |
34ccb63e | 189 | exit_cleanup(1); |
c627d613 | 190 | } |
773f2bd4 AT |
191 | if (to_child_pipe[0] != STDIN_FILENO) close(to_child_pipe[0]); |
192 | if (from_child_pipe[1] != STDOUT_FILENO) close(from_child_pipe[1]); | |
6574b4f7 | 193 | umask(orig_umask); |
c627d613 | 194 | execvp(command[0], command); |
9486289c | 195 | rprintf(FERROR,"Failed to exec %s : %s\n", |
c627d613 | 196 | command[0],strerror(errno)); |
34ccb63e | 197 | exit_cleanup(1); |
c627d613 AT |
198 | } |
199 | ||
200 | if (close(from_child_pipe[1]) < 0 || | |
201 | close(to_child_pipe[0]) < 0) { | |
9486289c | 202 | rprintf(FERROR,"Failed to close : %s\n",strerror(errno)); |
34ccb63e | 203 | exit_cleanup(1); |
c627d613 AT |
204 | } |
205 | ||
206 | *f_in = from_child_pipe[0]; | |
207 | *f_out = to_child_pipe[1]; | |
208 | ||
209 | return pid; | |
210 | } | |
211 | ||
366345fe AT |
212 | int local_child(int argc, char **argv,int *f_in,int *f_out) |
213 | { | |
214 | int pid; | |
215 | int to_child_pipe[2]; | |
216 | int from_child_pipe[2]; | |
217 | ||
218 | if (pipe(to_child_pipe) < 0 || | |
219 | pipe(from_child_pipe) < 0) { | |
9486289c | 220 | rprintf(FERROR,"pipe: %s\n",strerror(errno)); |
366345fe AT |
221 | exit_cleanup(1); |
222 | } | |
223 | ||
224 | ||
225 | pid = do_fork(); | |
226 | if (pid < 0) { | |
9486289c | 227 | rprintf(FERROR,"fork: %s\n",strerror(errno)); |
366345fe AT |
228 | exit_cleanup(1); |
229 | } | |
230 | ||
231 | if (pid == 0) { | |
232 | extern int am_sender; | |
233 | extern int am_server; | |
234 | ||
235 | am_sender = !am_sender; | |
236 | am_server = 1; | |
237 | ||
238 | if (dup2(to_child_pipe[0], STDIN_FILENO) < 0 || | |
239 | close(to_child_pipe[1]) < 0 || | |
240 | close(from_child_pipe[0]) < 0 || | |
241 | dup2(from_child_pipe[1], STDOUT_FILENO) < 0) { | |
9486289c | 242 | rprintf(FERROR,"Failed to dup/close : %s\n",strerror(errno)); |
366345fe AT |
243 | exit_cleanup(1); |
244 | } | |
245 | if (to_child_pipe[0] != STDIN_FILENO) close(to_child_pipe[0]); | |
246 | if (from_child_pipe[1] != STDOUT_FILENO) close(from_child_pipe[1]); | |
9486289c | 247 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
366345fe AT |
248 | } |
249 | ||
250 | if (close(from_child_pipe[1]) < 0 || | |
251 | close(to_child_pipe[0]) < 0) { | |
9486289c | 252 | rprintf(FERROR,"Failed to close : %s\n",strerror(errno)); |
366345fe AT |
253 | exit_cleanup(1); |
254 | } | |
255 | ||
256 | *f_in = from_child_pipe[0]; | |
257 | *f_out = to_child_pipe[1]; | |
258 | ||
259 | return pid; | |
260 | } | |
261 | ||
262 | ||
c627d613 AT |
263 | |
264 | void out_of_memory(char *str) | |
265 | { | |
9486289c | 266 | rprintf(FERROR,"ERROR: out of memory in %s\n",str); |
575f2fca AT |
267 | exit_cleanup(1); |
268 | } | |
269 | ||
270 | void overflow(char *str) | |
271 | { | |
9486289c | 272 | rprintf(FERROR,"ERROR: buffer overflow in %s\n",str); |
34ccb63e | 273 | exit_cleanup(1); |
c627d613 AT |
274 | } |
275 | ||
276 | ||
c627d613 AT |
277 | |
278 | int set_modtime(char *fname,time_t modtime) | |
279 | { | |
31e12522 AT |
280 | extern int dry_run; |
281 | if (dry_run) return 0; | |
282 | { | |
1e9f155a | 283 | #ifdef HAVE_UTIMBUF |
31e12522 AT |
284 | struct utimbuf tbuf; |
285 | tbuf.actime = time(NULL); | |
286 | tbuf.modtime = modtime; | |
287 | return utime(fname,&tbuf); | |
c627d613 | 288 | #elif defined(HAVE_UTIME) |
31e12522 AT |
289 | time_t t[2]; |
290 | t[0] = time(NULL); | |
291 | t[1] = modtime; | |
292 | return utime(fname,t); | |
c627d613 | 293 | #else |
31e12522 AT |
294 | struct timeval t[2]; |
295 | t[0].tv_sec = time(NULL); | |
296 | t[0].tv_usec = 0; | |
297 | t[1].tv_sec = modtime; | |
298 | t[1].tv_usec = 0; | |
299 | return utimes(fname,t); | |
c627d613 | 300 | #endif |
31e12522 | 301 | } |
c627d613 | 302 | } |
94481d91 | 303 | |
720b47f2 AT |
304 | |
305 | ||
306 | /**************************************************************************** | |
307 | Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available, | |
308 | else | |
309 | if SYSV use O_NDELAY | |
310 | if BSD use FNDELAY | |
311 | ****************************************************************************/ | |
312 | int set_blocking(int fd, int set) | |
313 | { | |
314 | int val; | |
315 | #ifdef O_NONBLOCK | |
316 | #define FLAG_TO_SET O_NONBLOCK | |
317 | #else | |
318 | #ifdef SYSV | |
319 | #define FLAG_TO_SET O_NDELAY | |
320 | #else /* BSD */ | |
321 | #define FLAG_TO_SET FNDELAY | |
322 | #endif | |
323 | #endif | |
324 | ||
325 | if((val = fcntl(fd, F_GETFL, 0)) == -1) | |
326 | return -1; | |
327 | if(set) /* Turn blocking on - ie. clear nonblock flag */ | |
328 | val &= ~FLAG_TO_SET; | |
329 | else | |
330 | val |= FLAG_TO_SET; | |
331 | return fcntl( fd, F_SETFL, val); | |
332 | #undef FLAG_TO_SET | |
333 | } | |
6574b4f7 AT |
334 | |
335 | /**************************************************************************** | |
336 | create any necessary directories in fname. Unfortunately we don't know | |
337 | what perms to give the directory when this is called so we need to rely | |
338 | on the umask | |
339 | ****************************************************************************/ | |
340 | int create_directory_path(char *fname) | |
341 | { | |
342 | extern int orig_umask; | |
343 | char *p; | |
344 | ||
345 | while (*fname == '/') fname++; | |
346 | while (strncmp(fname,"./",2)==0) fname += 2; | |
347 | ||
348 | p = fname; | |
349 | while ((p=strchr(p,'/'))) { | |
350 | *p = 0; | |
1b2d733a | 351 | do_mkdir(fname,0777 & ~orig_umask); |
6574b4f7 AT |
352 | *p = '/'; |
353 | p++; | |
354 | } | |
355 | return 0; | |
356 | } | |
950ab32d AT |
357 | |
358 | ||
359 | /* Write LEN bytes at PTR to descriptor DESC, retrying if interrupted. | |
360 | Return LEN upon success, write's (negative) error code otherwise. | |
361 | ||
362 | derived from GNU C's cccp.c. | |
363 | */ | |
364 | int full_write(int desc, char *ptr, int len) | |
365 | { | |
366 | int total_written; | |
367 | ||
368 | total_written = 0; | |
369 | while (len > 0) { | |
370 | int written = write (desc, ptr, len); | |
371 | if (written < 0) { | |
372 | #ifdef EINTR | |
373 | if (errno == EINTR) | |
374 | continue; | |
375 | #endif | |
376 | return written; | |
377 | } | |
378 | total_written += written; | |
379 | ptr += written; | |
380 | len -= written; | |
381 | } | |
382 | return total_written; | |
383 | } | |
384 | ||
385 | /* Read LEN bytes at PTR from descriptor DESC, retrying if interrupted. | |
386 | Return the actual number of bytes read, zero for EOF, or negative | |
387 | for an error. | |
388 | ||
389 | derived from GNU C's cccp.c. */ | |
390 | int safe_read(int desc, char *ptr, int len) | |
391 | { | |
392 | int n_chars; | |
393 | ||
394 | if (len <= 0) | |
395 | return len; | |
396 | ||
397 | #ifdef EINTR | |
398 | do { | |
399 | n_chars = read(desc, ptr, len); | |
400 | } while (n_chars < 0 && errno == EINTR); | |
401 | #else | |
402 | n_chars = read(desc, ptr, len); | |
403 | #endif | |
404 | ||
405 | return n_chars; | |
406 | } | |
407 | ||
408 | ||
409 | /* copy a file - this is used in conjunction with the --temp-dir option */ | |
410 | int copy_file(char *source, char *dest, mode_t mode) | |
411 | { | |
412 | int ifd; | |
413 | int ofd; | |
414 | char buf[1024 * 8]; | |
415 | int len; /* Number of bytes read into `buf'. */ | |
416 | ||
417 | ifd = open(source, O_RDONLY); | |
418 | if (ifd == -1) { | |
9486289c | 419 | rprintf(FERROR,"open %s: %s\n", |
950ab32d AT |
420 | source,strerror(errno)); |
421 | return -1; | |
422 | } | |
423 | ||
31e12522 | 424 | if (do_unlink(dest) && errno != ENOENT) { |
9486289c | 425 | rprintf(FERROR,"unlink %s: %s\n", |
950ab32d AT |
426 | dest,strerror(errno)); |
427 | return -1; | |
428 | } | |
429 | ||
31e12522 | 430 | ofd = do_open(dest, O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, mode); |
950ab32d | 431 | if (ofd < 0) { |
9486289c | 432 | rprintf(FERROR,"open %s: %s\n", |
950ab32d AT |
433 | dest,strerror(errno)); |
434 | close(ifd); | |
435 | return -1; | |
436 | } | |
437 | ||
438 | while ((len = safe_read(ifd, buf, sizeof(buf))) > 0) { | |
439 | if (full_write(ofd, buf, len) < 0) { | |
9486289c | 440 | rprintf(FERROR,"write %s: %s\n", |
950ab32d AT |
441 | dest,strerror(errno)); |
442 | close(ifd); | |
443 | close(ofd); | |
444 | return -1; | |
445 | } | |
446 | } | |
447 | ||
448 | close(ifd); | |
449 | close(ofd); | |
450 | ||
451 | if (len < 0) { | |
9486289c | 452 | rprintf(FERROR,"read %s: %s\n", |
950ab32d AT |
453 | source,strerror(errno)); |
454 | return -1; | |
455 | } | |
456 | ||
457 | return 0; | |
458 | } | |
feaa89c4 AT |
459 | |
460 | /* sleep for a while via select */ | |
461 | void u_sleep(int usec) | |
462 | { | |
463 | struct timeval tv; | |
464 | ||
465 | tv.tv_sec = 0; | |
466 | tv.tv_usec = usec; | |
467 | select(0, NULL, NULL, NULL, &tv); | |
468 | } | |
3ba62a83 AT |
469 | |
470 | ||
471 | static pid_t all_pids[10]; | |
472 | static int num_pids; | |
473 | ||
474 | /* fork and record the pid of the child */ | |
475 | pid_t do_fork(void) | |
476 | { | |
477 | pid_t newpid = fork(); | |
478 | ||
479 | if (newpid) { | |
480 | all_pids[num_pids++] = newpid; | |
481 | } | |
482 | return newpid; | |
483 | } | |
484 | ||
485 | /* kill all children */ | |
486 | void kill_all(int sig) | |
487 | { | |
488 | int i; | |
489 | for (i=0;i<num_pids;i++) { | |
490 | if (all_pids[i] != getpid()) | |
491 | kill(all_pids[i], sig); | |
492 | } | |
493 | } | |
9486289c | 494 | |
7a6421fa AT |
495 | /* like strncpy but does not 0 fill the buffer and always null |
496 | terminates (thus it can use maxlen+1 space in d) */ | |
497 | void strlcpy(char *d, char *s, int maxlen) | |
498 | { | |
499 | int len = strlen(s); | |
500 | if (len > maxlen) len = maxlen; | |
501 | memcpy(d, s, len); | |
502 | d[len] = 0; | |
503 | } | |
8ef4ffd6 | 504 | |
e42c9458 AT |
505 | /* like strncat but does not 0 fill the buffer and always null |
506 | terminates (thus it can use maxlen+1 space in d) */ | |
507 | void strlcat(char *d, char *s, int maxlen) | |
508 | { | |
509 | int len1 = strlen(d); | |
510 | int len2 = strlen(s); | |
511 | if (len1+len2 > maxlen) { | |
512 | len2 = maxlen-len1; | |
513 | } | |
514 | if (len2 > 0) { | |
515 | memcpy(d+len1, s, len2); | |
516 | d[len1+len2] = 0; | |
517 | } | |
518 | } | |
519 | ||
8ef4ffd6 AT |
520 | /* turn a user name into a uid */ |
521 | int name_to_uid(char *name, uid_t *uid) | |
522 | { | |
523 | struct passwd *pass; | |
524 | if (!name || !*name) return 0; | |
525 | pass = getpwnam(name); | |
526 | if (pass) { | |
527 | *uid = pass->pw_uid; | |
528 | return 1; | |
529 | } | |
530 | return 0; | |
531 | } | |
532 | ||
533 | /* turn a group name into a gid */ | |
534 | int name_to_gid(char *name, gid_t *gid) | |
535 | { | |
536 | struct group *grp; | |
537 | if (!name || !*name) return 0; | |
538 | grp = getgrnam(name); | |
539 | if (grp) { | |
540 | *gid = grp->gr_gid; | |
541 | return 1; | |
542 | } | |
543 | return 0; | |
544 | } | |
545 | ||
ff8b29b8 | 546 | |
0c515f17 AT |
547 | /**************************************************************************** |
548 | check if a process exists. | |
549 | ****************************************************************************/ | |
550 | int process_exists(int pid) | |
551 | { | |
552 | return(kill(pid,0) == 0 || errno != ESRCH); | |
553 | } | |
554 | ||
31593dd6 AT |
555 | /* lock a byte range in a open file */ |
556 | int lock_range(int fd, int offset, int len) | |
0c515f17 | 557 | { |
31593dd6 | 558 | struct flock lock; |
0c515f17 | 559 | |
31593dd6 AT |
560 | lock.l_type = F_WRLCK; |
561 | lock.l_whence = SEEK_SET; | |
562 | lock.l_start = offset; | |
563 | lock.l_len = len; | |
564 | lock.l_pid = 0; | |
565 | ||
566 | return fcntl(fd,F_SETLK,&lock) == 0; | |
0c515f17 | 567 | } |
874895d5 AT |
568 | |
569 | ||
087bf010 | 570 | static void glob_expand_one(char *s, char **argv, int *argc, int maxargs) |
874895d5 AT |
571 | { |
572 | #ifndef HAVE_GLOB | |
e42c9458 | 573 | if (!*s) s = "."; |
087bf010 | 574 | argv[*argc] = strdup(s); |
874895d5 AT |
575 | (*argc)++; |
576 | return; | |
577 | #else | |
578 | glob_t globbuf; | |
579 | int i; | |
580 | ||
e42c9458 AT |
581 | if (!*s) s = "."; |
582 | ||
087bf010 AT |
583 | argv[*argc] = strdup(s); |
584 | ||
874895d5 AT |
585 | memset(&globbuf, 0, sizeof(globbuf)); |
586 | glob(argv[*argc], 0, NULL, &globbuf); | |
587 | if (globbuf.gl_pathc == 0) { | |
588 | (*argc)++; | |
589 | globfree(&globbuf); | |
590 | return; | |
591 | } | |
592 | for (i=0; i<(maxargs - (*argc)) && i<globbuf.gl_pathc;i++) { | |
593 | if (i == 0) free(argv[*argc]); | |
594 | argv[(*argc) + i] = strdup(globbuf.gl_pathv[i]); | |
595 | if (!argv[(*argc) + i]) out_of_memory("glob_expand"); | |
596 | } | |
597 | globfree(&globbuf); | |
598 | (*argc) += i; | |
599 | #endif | |
600 | } | |
5a96ee05 | 601 | |
ba5e128d | 602 | void glob_expand(char *base1, char **argv, int *argc, int maxargs) |
087bf010 AT |
603 | { |
604 | char *s = argv[*argc]; | |
605 | char *p, *q; | |
ba5e128d | 606 | char *base = base1; |
087bf010 AT |
607 | |
608 | if (!s || !*s) return; | |
609 | ||
e42c9458 AT |
610 | if (strncmp(s, base, strlen(base)) == 0) { |
611 | s += strlen(base); | |
612 | } | |
613 | ||
087bf010 AT |
614 | s = strdup(s); |
615 | if (!s) out_of_memory("glob_expand"); | |
616 | ||
ba5e128d AT |
617 | base = (char *)malloc(strlen(base1)+3); |
618 | if (!base) out_of_memory("glob_expand"); | |
619 | ||
620 | sprintf(base," %s/", base1); | |
621 | ||
087bf010 AT |
622 | q = s; |
623 | while ((p = strstr(q,base)) && ((*argc) < maxargs)) { | |
ba5e128d AT |
624 | /* split it at this point */ |
625 | *p = 0; | |
626 | glob_expand_one(q, argv, argc, maxargs); | |
627 | q = p+strlen(base); | |
087bf010 AT |
628 | } |
629 | ||
630 | if (*q && (*argc < maxargs)) glob_expand_one(q, argv, argc, maxargs); | |
631 | ||
632 | free(s); | |
ba5e128d | 633 | free(base); |
087bf010 | 634 | } |
5a96ee05 AT |
635 | |
636 | /******************************************************************* | |
637 | convert a string to lower case | |
638 | ********************************************************************/ | |
639 | void strlower(char *s) | |
640 | { | |
641 | while (*s) { | |
642 | if (isupper(*s)) *s = tolower(*s); | |
643 | s++; | |
644 | } | |
645 | } | |
e42c9458 AT |
646 | |
647 | /* this is like vsnprintf but the 'n' limit does not include | |
648 | the terminating null. So if you have a 1024 byte buffer then | |
649 | pass 1023 for n */ | |
650 | int vslprintf(char *str, int n, const char *format, va_list ap) | |
651 | { | |
652 | #ifdef HAVE_VSNPRINTF | |
653 | int ret = vsnprintf(str, n, format, ap); | |
654 | if (ret > n || ret < 0) { | |
655 | str[n] = 0; | |
656 | return -1; | |
657 | } | |
658 | str[ret] = 0; | |
659 | return ret; | |
660 | #else | |
661 | static char *buf; | |
662 | static int len=MAXPATHLEN*8; | |
663 | int ret; | |
664 | ||
665 | /* this code is NOT a proper vsnprintf() implementation. It | |
666 | relies on the fact that all calls to slprintf() in rsync | |
667 | pass strings which have already been checked to be less | |
668 | than MAXPATHLEN in length and never more than 2 strings are | |
669 | concatenated. This means the above buffer is absolutely | |
670 | ample and can never be overflowed. | |
671 | ||
672 | In the future we would like to replace this with a proper | |
673 | vsnprintf() implementation but right now we need a solution | |
674 | that is secure and portable. This is it. */ | |
675 | ||
676 | if (!buf) { | |
677 | buf = malloc(len); | |
678 | if (!buf) { | |
679 | /* can't call debug or we would recurse */ | |
8d9dc9f9 | 680 | exit_cleanup(1); |
e42c9458 AT |
681 | } |
682 | } | |
683 | ||
f72399f8 AT |
684 | vsprintf(buf, format, ap); |
685 | ret = strlen(buf); | |
686 | if (ret > n) { | |
687 | /* yikes! */ | |
8d9dc9f9 | 688 | exit_cleanup(1); |
e42c9458 | 689 | } |
f72399f8 | 690 | buf[ret] = 0; |
e42c9458 | 691 | |
f72399f8 | 692 | memcpy(str, buf, ret+1); |
e42c9458 AT |
693 | |
694 | return ret; | |
695 | #endif | |
696 | } | |
697 | ||
698 | ||
699 | /* like snprintf but always null terminates */ | |
700 | int slprintf(char *str, int n, char *format, ...) | |
701 | { | |
702 | va_list ap; | |
703 | int ret; | |
704 | ||
705 | va_start(ap, format); | |
706 | ret = vslprintf(str,n,format,ap); | |
707 | va_end(ap); | |
708 | return ret; | |
709 | } | |
8d9dc9f9 | 710 |