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[rsync.git] / options.c
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1 /* -*- c-file-style: "linux" -*-
2
3 Copyright (C) 1998-2001 by Andrew Tridgell <tridge@samba.org>
4 Copyright (C) 2000-2001 by Martin Pool <mbp@samba.org>
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21 #include "rsync.h"
22 #include "popt.h"
23
24 int make_backups = 0;
25 int whole_file = 0;
26 int copy_links = 0;
27 int preserve_links = 0;
28 int preserve_hard_links = 0;
29 int preserve_perms = 0;
30 int preserve_devices = 0;
31 int preserve_uid = 0;
32 int preserve_gid = 0;
33 int preserve_times = 0;
34 int update_only = 0;
35 int cvs_exclude = 0;
36 int dry_run=0;
37 int local_server=0;
38 int ignore_times=0;
39 int delete_mode=0;
40 int delete_excluded=0;
41 int one_file_system=0;
42 int remote_version=0;
43 int sparse_files=0;
44 int do_compression=0;
45 int am_root=0;
46 int orig_umask=0;
47 int relative_paths=0;
48 int numeric_ids = 0;
49 int force_delete = 0;
50 int io_timeout = 0;
51 int io_error = 0;
52 int read_only = 0;
53 int module_id = -1;
54 int am_server = 0;
55 int am_sender=0;
56 int recurse = 0;
57 int am_daemon=0;
58 int do_stats=0;
59 int do_progress=0;
60 int keep_partial=0;
61 int safe_symlinks=0;
62 int copy_unsafe_links=0;
63 int block_size=BLOCK_SIZE;
64 int size_only=0;
65 int bwlimit=0;
66 int delete_after=0;
67 int only_existing=0;
68 int max_delete=0;
69 int ignore_errors=0;
70 #ifdef _WIN32
71 int modify_window=2;
72 #else
73 int modify_window=0;
74 #endif
75 int blocking_io=0;
76
77 int read_batch=0; /* dw */
78 int write_batch=0; /* dw */
79
80 char *backup_suffix = BACKUP_SUFFIX;
81 char *tmpdir = NULL;
82 char *compare_dest = NULL;
83 char *config_file = RSYNCD_CONF;
84 char *shell_cmd = NULL;
85 char *log_format = NULL;
86 char *password_file = NULL;
87 char *rsync_path = RSYNC_PATH;
88 char *backup_dir = NULL;
89 int rsync_port = RSYNC_PORT;
90
91 int verbose = 0;
92 int quiet = 0;
93 int always_checksum = 0;
94 int list_only = 0;
95
96 char *batch_ext = NULL;
97
98 static int modify_window_set;
99
100
101 struct in_addr socket_address = {INADDR_ANY};
102
103
104 static void print_rsync_version(int f)
105 {
106 char const *got_socketpair = "no ";
107 char const *hardlinks = "no ";
108 char const *links = "no ";
109
110 #ifdef HAVE_SOCKETPAIR
111 got_socketpair = "";
112 #endif
113
114 #if SUPPORT_HARD_LINKS
115 hardlinks = "";
116 #endif
117
118 #if SUPPORT_LINKS
119 links = "";
120 #endif
121
122 rprintf(f, "%s version %s protocol version %d\n",
123 RSYNC_NAME, VERSION, PROTOCOL_VERSION);
124 rprintf(f,
125 "Copyright (C) 1996-2001 by Andrew Tridgell and others\n");
126 rprintf(f, "<http://rsync.samba.org/>\n");
127 rprintf(f, "Capabilities: %d-bit files, %ssocketpairs, "
128 "%shard links, %ssymlinks, batchfiles\n\n",
129 (int) (sizeof(int64) * 8),
130 got_socketpair,
131 hardlinks, links);
132
133 #ifdef NO_INT64
134 rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
135 #endif
136 }
137
138
139 void usage(enum logcode F)
140 {
141 print_rsync_version(F);
142
143 rprintf(F,"rsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");
144
145 rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
146 rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC DEST\n");
147 rprintf(F," or rsync [OPTION]... SRC [SRC]... DEST\n");
148 rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
149 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
150 rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
151 rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n");
152 rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n");
153 rprintf(F," sources separated by space as long as they have same top-level\n");
154 rprintf(F,"\nOptions\n");
155 rprintf(F," -v, --verbose increase verbosity\n");
156 rprintf(F," -q, --quiet decrease verbosity\n");
157 rprintf(F," -c, --checksum always checksum\n");
158 rprintf(F," -a, --archive archive mode\n");
159 rprintf(F," -r, --recursive recurse into directories\n");
160 rprintf(F," -R, --relative use relative path names\n");
161 rprintf(F," -b, --backup make backups (default %s suffix)\n",BACKUP_SUFFIX);
162 rprintf(F," --backup-dir make backups into this directory\n");
163 rprintf(F," --suffix=SUFFIX override backup suffix\n");
164 rprintf(F," -u, --update update only (don't overwrite newer files)\n");
165 rprintf(F," -l, --links preserve soft links\n");
166 rprintf(F," -L, --copy-links treat soft links like regular files\n");
167 rprintf(F," --copy-unsafe-links copy links outside the source tree\n");
168 rprintf(F," --safe-links ignore links outside the destination tree\n");
169 rprintf(F," -H, --hard-links preserve hard links\n");
170 rprintf(F," -p, --perms preserve permissions\n");
171 rprintf(F," -o, --owner preserve owner (root only)\n");
172 rprintf(F," -g, --group preserve group\n");
173 rprintf(F," -D, --devices preserve devices (root only)\n");
174 rprintf(F," -t, --times preserve times\n");
175 rprintf(F," -S, --sparse handle sparse files efficiently\n");
176 rprintf(F," -n, --dry-run show what would have been transferred\n");
177 rprintf(F," -W, --whole-file copy whole files, no incremental checks\n");
178 rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
179 rprintf(F," -B, --block-size=SIZE checksum blocking size (default %d)\n",BLOCK_SIZE);
180 rprintf(F," -e, --rsh=COMMAND specify rsh replacement\n");
181 rprintf(F," --rsync-path=PATH specify path to rsync on the remote machine\n");
182 rprintf(F," -C, --cvs-exclude auto ignore files in the same way CVS does\n");
183 rprintf(F," --existing only update files that already exist\n");
184 rprintf(F," --delete delete files that don't exist on the sending side\n");
185 rprintf(F," --delete-excluded also delete excluded files on the receiving side\n");
186 rprintf(F," --delete-after delete after transferring, not before\n");
187 rprintf(F," --ignore-errors delete even if there are IO errors\n");
188 rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
189 rprintf(F," --partial keep partially transferred files\n");
190 rprintf(F," --force force deletion of directories even if not empty\n");
191 rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
192 rprintf(F," --timeout=TIME set IO timeout in seconds\n");
193 rprintf(F," -I, --ignore-times don't exclude files that match length and time\n");
194 rprintf(F," --size-only only use file size when determining if a file should be transferred\n");
195 rprintf(F," --modify-window=NUM Timestamp window (seconds) for file match (default=%d)\n",modify_window);
196 rprintf(F," -T --temp-dir=DIR create temporary files in directory DIR\n");
197 rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
198 rprintf(F," -P equivalent to --partial --progress\n");
199 rprintf(F," -z, --compress compress file data\n");
200 rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
201 rprintf(F," --exclude-from=FILE exclude patterns listed in FILE\n");
202 rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
203 rprintf(F," --include-from=FILE don't exclude patterns listed in FILE\n");
204 rprintf(F," --version print version number\n");
205 rprintf(F," --daemon run as a rsync daemon\n");
206 rprintf(F," --address bind to the specified address\n");
207 rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
208 rprintf(F," --port=PORT specify alternate rsyncd port number\n");
209 rprintf(F," --blocking-io use blocking IO for the remote shell\n");
210 rprintf(F," --stats give some file transfer stats\n");
211 rprintf(F," --progress show progress during transfer\n");
212 rprintf(F," --log-format=FORMAT log file transfers using specified format\n");
213 rprintf(F," --password-file=FILE get password from FILE\n");
214 rprintf(F," --bwlimit=KBPS limit I/O bandwidth, KBytes per second\n");
215 rprintf(F," -f --read-batch=EXT read batch file\n");
216 rprintf(F," -F --write-batch write batch file\n");
217 rprintf(F," -h, --help show this help screen\n");
218
219 rprintf(F,"\n");
220
221 rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
222 rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
223 }
224
225 enum {OPT_VERSION = 1000, OPT_SUFFIX, OPT_SENDER, OPT_SERVER, OPT_EXCLUDE,
226 OPT_EXCLUDE_FROM, OPT_DELETE, OPT_DELETE_EXCLUDED, OPT_NUMERIC_IDS,
227 OPT_RSYNC_PATH, OPT_FORCE, OPT_TIMEOUT, OPT_DAEMON, OPT_CONFIG, OPT_PORT,
228 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_STATS, OPT_PARTIAL, OPT_PROGRESS,
229 OPT_COPY_UNSAFE_LINKS, OPT_SAFE_LINKS, OPT_COMPARE_DEST,
230 OPT_LOG_FORMAT, OPT_PASSWORD_FILE, OPT_SIZE_ONLY, OPT_ADDRESS,
231 OPT_DELETE_AFTER, OPT_EXISTING, OPT_MAX_DELETE, OPT_BACKUP_DIR,
232 OPT_IGNORE_ERRORS, OPT_BWLIMIT, OPT_BLOCKING_IO,
233 OPT_MODIFY_WINDOW};
234
235 static struct poptOption long_options[] = {
236 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
237 {"version", 0, POPT_ARG_NONE, 0, OPT_VERSION},
238 {"suffix", 0, POPT_ARG_STRING, &backup_suffix},
239 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path},
240 {"password-file", 0, POPT_ARG_STRING, &password_file},
241 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times},
242 {"size-only", 0, POPT_ARG_NONE, &size_only},
243 {"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW},
244 {"one-file-system", 'x', POPT_ARG_NONE, &one_file_system},
245 {"delete", 0, POPT_ARG_NONE, &delete_mode},
246 {"existing", 0, POPT_ARG_NONE, &only_existing},
247 {"delete-after", 0, POPT_ARG_NONE, &delete_after},
248 {"delete-excluded", 0, POPT_ARG_NONE, 0, OPT_DELETE_EXCLUDED},
249 {"force", 0, POPT_ARG_NONE, &force_delete},
250 {"numeric-ids", 0, POPT_ARG_NONE, &numeric_ids},
251 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE},
252 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE},
253 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM},
254 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM},
255 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks},
256 {"help", 'h', POPT_ARG_NONE, 0, 'h'},
257 {"backup", 'b', POPT_ARG_NONE, &make_backups},
258 {"dry-run", 'n', POPT_ARG_NONE, &dry_run},
259 {"sparse", 'S', POPT_ARG_NONE, &sparse_files},
260 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude},
261 {"update", 'u', POPT_ARG_NONE, &update_only},
262 {"links", 'l', POPT_ARG_NONE, &preserve_links},
263 {"copy-links", 'L', POPT_ARG_NONE, &copy_links},
264 {"whole", 'W', POPT_ARG_NONE, &whole_file},
265 {"copy-unsafe-links", 0, POPT_ARG_NONE, &copy_unsafe_links},
266 {"perms", 'p', POPT_ARG_NONE, &preserve_perms},
267 {"owner", 'o', POPT_ARG_NONE, &preserve_uid},
268 {"group", 'g', POPT_ARG_NONE, &preserve_gid},
269 {"devices", 'D', POPT_ARG_NONE, &preserve_devices},
270 {"times", 't', POPT_ARG_NONE, &preserve_times},
271 {"checksum", 'c', POPT_ARG_NONE, &always_checksum},
272 {"verbose", 'v', POPT_ARG_NONE, 0, 'v'},
273 {"quiet", 'q', POPT_ARG_NONE, 0, 'q'},
274 {"archive", 'a', POPT_ARG_NONE, 0, 'a'},
275 {"server", 0, POPT_ARG_NONE, &am_server},
276 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER},
277 {"recursive", 'r', POPT_ARG_NONE, &recurse},
278 {"relative", 'R', POPT_ARG_NONE, &relative_paths},
279 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd},
280 {"block-size", 'B', POPT_ARG_INT, &block_size},
281 {"max-delete", 0, POPT_ARG_INT, &max_delete},
282 {"timeout", 0, POPT_ARG_INT, &io_timeout},
283 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir},
284 {"compare-dest", 0, POPT_ARG_STRING, &compare_dest},
285 /* TODO: Should this take an optional int giving the compression level? */
286 {"compress", 'z', POPT_ARG_NONE, &do_compression},
287 {"daemon", 0, POPT_ARG_NONE, &am_daemon},
288 {"stats", 0, POPT_ARG_NONE, &do_stats},
289 {"progress", 0, POPT_ARG_NONE, &do_progress},
290 {"partial", 0, POPT_ARG_NONE, &keep_partial},
291 {"ignore-errors", 0, POPT_ARG_NONE, &ignore_errors},
292 {"blocking-io", 0, POPT_ARG_NONE, &blocking_io},
293 {0, 'P', POPT_ARG_NONE, 0, 'P'},
294 {"config", 0, POPT_ARG_STRING, &config_file},
295 {"port", 0, POPT_ARG_INT, &rsync_port},
296 {"log-format", 0, POPT_ARG_STRING, &log_format},
297 {"bwlimit", 0, POPT_ARG_INT, &bwlimit},
298 {"address", 0, POPT_ARG_STRING, 0, OPT_ADDRESS},
299 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir},
300 {"hard-links", 'H', POPT_ARG_NONE, &preserve_hard_links},
301 {"read-batch", 'f', POPT_ARG_STRING, &batch_ext, 'f'},
302 {"write-batch", 'F', POPT_ARG_NONE, &write_batch, 0},
303 {0,0,0,0}
304 };
305
306 static char err_buf[100];
307
308
309 /* We store the option error message, if any, so that we can log the
310 connection attempt (which requires parsing the options), and then
311 show the error later on. */
312 void option_error(void)
313 {
314 if (err_buf[0]) {
315 rprintf(FLOG, "%s", err_buf);
316 rprintf(FERROR, "%s: %s", RSYNC_NAME, err_buf);
317 } else {
318 rprintf (FERROR, "Error parsing options: "
319 "option may be supported on client but not on server?\n");
320 rprintf (FERROR, RSYNC_NAME ": Error parsing options: "
321 "option may be supported on client but not on server?\n");
322 }
323 }
324
325 /* check to see if we should refuse this option */
326 static int check_refuse_options(char *ref, int opt)
327 {
328 int i, len;
329 char *p;
330 const char *name;
331
332 for (i=0; long_options[i].longName; i++) {
333 if (long_options[i].val == opt) break;
334 }
335
336 if (!long_options[i].longName) return 0;
337
338 name = long_options[i].longName;
339 len = strlen(name);
340
341 while ((p = strstr(ref,name))) {
342 if ((p==ref || p[-1]==' ') &&
343 (p[len] == ' ' || p[len] == 0)) {
344 snprintf(err_buf,sizeof(err_buf),
345 "The '%s' option is not supported by this server\n", name);
346 return 1;
347 }
348 ref += len;
349 }
350 return 0;
351 }
352
353
354 static int count_args(char const **argv)
355 {
356 int i = 0;
357
358 while (argv[i] != NULL)
359 i++;
360
361 return i;
362 }
363
364
365 /* Process command line arguments. Called on both local and remote.
366 * Returns if all options are OK, otherwise fills in err_buf and
367 * returns 0. */
368 int parse_arguments(int *argc, const char ***argv, int frommain)
369 {
370 int opt;
371 char *ref = lp_refuse_options(module_id);
372 poptContext pc;
373
374 /* TODO: Call poptReadDefaultConfig; handle errors. */
375
376 /* The context leaks in case of an error, but if there's a
377 * problem we always exit anyhow. */
378 pc = poptGetContext(RSYNC_NAME, *argc, *argv, long_options, 0);
379
380 while ((opt = poptGetNextOpt(pc)) != -1) {
381 if (ref) {
382 if (check_refuse_options(ref, opt)) return 0;
383 }
384
385 /* most options are handled automatically by popt;
386 * only special cases are returned and listed here. */
387
388 switch (opt) {
389 case OPT_VERSION:
390 print_rsync_version(FINFO);
391 exit_cleanup(0);
392
393 case OPT_MODIFY_WINDOW:
394 /* The value has already been set by popt, but
395 * we need to remember that we're using a
396 * non-default setting. */
397 modify_window_set = 1;
398 break;
399
400 case OPT_DELETE_EXCLUDED:
401 delete_excluded = 1;
402 delete_mode = 1;
403 break;
404
405 case OPT_EXCLUDE:
406 add_exclude(poptGetOptArg(pc), 0);
407 break;
408
409 case OPT_INCLUDE:
410 add_exclude(poptGetOptArg(pc), 1);
411 break;
412
413 case OPT_EXCLUDE_FROM:
414 add_exclude_file(poptGetOptArg(pc), 1, 0);
415 break;
416
417 case OPT_INCLUDE_FROM:
418 add_exclude_file(poptGetOptArg(pc), 1, 1);
419 break;
420
421 case 'h':
422 usage(FINFO);
423 exit_cleanup(0);
424
425 case 'H':
426 #if SUPPORT_HARD_LINKS
427 preserve_hard_links=1;
428 #else
429 /* FIXME: Don't say "server" if this is
430 * happening on the client. */
431 /* FIXME: Why do we have the duplicated
432 * rprintf? Everybody who gets this message
433 * ought to send it to the client and also to
434 * the logs. */
435 snprintf(err_buf,sizeof(err_buf),
436 "hard links are not supported on this %s\n",
437 am_server ? "server" : "client");
438 rprintf(FERROR,"ERROR: hard links not supported on this platform\n");
439 return 0;
440 #endif /* SUPPORT_HARD_LINKS */
441 break;
442
443 case 'v':
444 verbose++;
445 break;
446
447 case 'q':
448 if (frommain) quiet++;
449 break;
450
451 case 'a':
452 recurse=1;
453 #if SUPPORT_LINKS
454 preserve_links=1;
455 #endif
456 preserve_perms=1;
457 preserve_times=1;
458 preserve_gid=1;
459 preserve_uid=1;
460 preserve_devices=1;
461 break;
462
463 case OPT_SENDER:
464 if (!am_server) {
465 usage(FERROR);
466 exit_cleanup(RERR_SYNTAX);
467 }
468 am_sender = 1;
469 break;
470
471 case 'P':
472 do_progress = 1;
473 keep_partial = 1;
474 break;
475
476 case OPT_ADDRESS:
477 {
478 struct in_addr *ia;
479 if ((ia = ip_address (poptGetOptArg (pc)))) {
480 socket_address = *ia;
481 }
482 }
483 break;
484
485 case 'f':
486 /* The filename is stored for us by popt */
487 read_batch = 1;
488 break;
489
490 default:
491 /* FIXME: If --daemon is specified, then errors for later
492 * parameters seem to disappear. */
493 snprintf(err_buf, sizeof(err_buf),
494 "%s%s: %s\n",
495 am_server ? "on remote machine: " : "",
496 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
497 poptStrerror(opt));
498 return 0;
499 }
500 }
501
502 *argv = poptGetArgs(pc);
503 if (*argv)
504 *argc = count_args(*argv);
505 else
506 *argc = 0;
507
508 return 1;
509 }
510
511
512 /* Construct a filtered list of options to pass through from the
513 * client to the server */
514 void server_options(char **args,int *argc)
515 {
516 int ac = *argc;
517 static char argstr[50];
518 static char bsize[30];
519 static char iotime[30];
520 static char mdelete[30];
521 static char mwindow[30];
522 static char bw[50];
523 static char fext[20]; /* dw */
524
525 int i, x;
526
527 args[ac++] = "--server";
528
529 if (!am_sender)
530 args[ac++] = "--sender";
531
532 x = 1;
533 argstr[0] = '-';
534 for (i=0;i<verbose;i++)
535 argstr[x++] = 'v';
536
537 /* the -q option is intentionally left out */
538 if (make_backups)
539 argstr[x++] = 'b';
540 if (update_only)
541 argstr[x++] = 'u';
542 if (dry_run)
543 argstr[x++] = 'n';
544 if (preserve_links)
545 argstr[x++] = 'l';
546 if (copy_links)
547 argstr[x++] = 'L';
548 if (whole_file)
549 argstr[x++] = 'W';
550 if (preserve_hard_links)
551 argstr[x++] = 'H';
552 if (preserve_uid)
553 argstr[x++] = 'o';
554 if (preserve_gid)
555 argstr[x++] = 'g';
556 if (preserve_devices)
557 argstr[x++] = 'D';
558 if (preserve_times)
559 argstr[x++] = 't';
560 if (preserve_perms)
561 argstr[x++] = 'p';
562 if (recurse)
563 argstr[x++] = 'r';
564 if (always_checksum)
565 argstr[x++] = 'c';
566 if (cvs_exclude)
567 argstr[x++] = 'C';
568 if (ignore_times)
569 argstr[x++] = 'I';
570 if (relative_paths)
571 argstr[x++] = 'R';
572 if (one_file_system)
573 argstr[x++] = 'x';
574 if (sparse_files)
575 argstr[x++] = 'S';
576 if (do_compression)
577 argstr[x++] = 'z';
578 if (write_batch)
579 argstr[x++] = 'F'; /* dw */
580
581 /* this is a complete hack - blame Rusty
582
583 this is a hack to make the list_only (remote file list)
584 more useful */
585 if (list_only && !recurse)
586 argstr[x++] = 'r';
587
588 argstr[x] = 0;
589
590 if (x != 1) args[ac++] = argstr;
591
592 if (block_size != BLOCK_SIZE) {
593 snprintf(bsize,sizeof(bsize),"-B%d",block_size);
594 args[ac++] = bsize;
595 }
596
597 if (max_delete && am_sender) {
598 snprintf(mdelete,sizeof(mdelete),"--max-delete=%d",max_delete);
599 args[ac++] = mdelete;
600 }
601
602 if (batch_ext != NULL) {
603 sprintf(fext,"-f%s",batch_ext);
604 args[ac++] = fext;
605 }
606
607 if (io_timeout) {
608 snprintf(iotime,sizeof(iotime),"--timeout=%d",io_timeout);
609 args[ac++] = iotime;
610 }
611
612 if (bwlimit) {
613 snprintf(bw,sizeof(bw),"--bwlimit=%d",bwlimit);
614 args[ac++] = bw;
615 }
616
617 if (strcmp(backup_suffix, BACKUP_SUFFIX)) {
618 args[ac++] = "--suffix";
619 args[ac++] = backup_suffix;
620 }
621
622 if (delete_mode && !delete_excluded)
623 args[ac++] = "--delete";
624
625 if (delete_excluded)
626 args[ac++] = "--delete-excluded";
627
628 if (size_only)
629 args[ac++] = "--size-only";
630
631 if (modify_window_set) {
632 snprintf(mwindow,sizeof(mwindow),"--modify-window=%d",
633 modify_window);
634 args[ac++] = mwindow;
635 }
636
637 if (keep_partial)
638 args[ac++] = "--partial";
639
640 if (force_delete)
641 args[ac++] = "--force";
642
643 if (delete_after)
644 args[ac++] = "--delete-after";
645
646 if (ignore_errors)
647 args[ac++] = "--ignore-errors";
648
649 if (copy_unsafe_links)
650 args[ac++] = "--copy-unsafe-links";
651
652 if (safe_symlinks)
653 args[ac++] = "--safe-links";
654
655 if (numeric_ids)
656 args[ac++] = "--numeric-ids";
657
658 if (only_existing && am_sender)
659 args[ac++] = "--existing";
660
661 if (tmpdir) {
662 args[ac++] = "--temp-dir";
663 args[ac++] = tmpdir;
664 }
665
666 if (backup_dir && am_sender) {
667 /* only the receiver needs this option, if we are the sender
668 * then we need to send it to the receiver.
669 */
670 args[ac++] = "--backup-dir";
671 args[ac++] = backup_dir;
672 }
673
674 if (compare_dest && am_sender) {
675 /* the server only needs this option if it is not the sender,
676 * and it may be an older version that doesn't know this
677 * option, so don't send it if client is the sender.
678 */
679 args[ac++] = "--compare-dest";
680 args[ac++] = compare_dest;
681 }
682
683
684 *argc = ac;
685 }
686
rsync: a fast, versatile, remote (and local) file-copying tool