1 /* -*- c-file-style: "linux" -*-
3 Copyright (C) 1998-2001 by Andrew Tridgell <tridge@samba.org>
4 Copyright (C) 2000, 2001, 2002 by Martin Pool <mbp@samba.org>
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.
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.
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.
27 * Should we send the whole file as literal data rather than trying to
28 * create an incremental diff? This is on by default when both source
29 * and destination are local and we're not doing a batch delta,
30 * because there it's no cheaper to read the whole basis file than to
33 * If both are 0, then look at whether we're local or remote and go by
37 int no_whole_file = 0;
40 int preserve_links = 0;
41 int preserve_hard_links = 0;
42 int preserve_perms = 0;
43 int preserve_devices = 0;
46 int preserve_times = 0;
53 int delete_excluded=0;
54 int one_file_system=0;
75 int copy_unsafe_links=0;
76 int block_size=BLOCK_SIZE;
81 int opt_ignore_existing=0;
91 /** Network address family. **/
93 int default_af_hint = 0; /* Any protocol */
95 int default_af_hint = AF_INET; /* Must use IPv4 */
98 /** Do not go into the background when run as --daemon. Good
99 * for debugging and required for running as a service on W32,
100 * or under Unix process-monitors. **/
106 char *backup_suffix = BACKUP_SUFFIX;
108 char *compare_dest = NULL;
109 char *config_file = RSYNCD_CONF;
110 char *shell_cmd = NULL;
111 char *log_format = NULL;
112 char *password_file = NULL;
113 char *rsync_path = RSYNC_PATH;
114 char *backup_dir = NULL;
115 int rsync_port = RSYNC_PORT;
119 int always_checksum = 0;
122 char *batch_prefix = NULL;
124 static int modify_window_set;
126 /** Local address to bind. As a character string because it's
127 * interpreted by the IPv6 layer: should be a numeric IP4 or ip6
128 * address, or a hostname. **/
132 static void print_rsync_version(enum logcode f)
134 char const *got_socketpair = "no ";
135 char const *hardlinks = "no ";
136 char const *links = "no ";
137 char const *ipv6 = "no ";
138 STRUCT_STAT *dumstat;
140 #ifdef HAVE_SOCKETPAIR
144 #if SUPPORT_HARD_LINKS
156 rprintf(f, "%s version %s protocol version %d\n",
157 RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION);
159 "Copyright (C) 1996-2002 by Andrew Tridgell and others\n");
160 rprintf(f, "<http://rsync.samba.org/>\n");
161 rprintf(f, "Capabilities: %d-bit files, %ssocketpairs, "
162 "%shard links, %ssymlinks, batchfiles, %sIPv6,\n",
163 (int) (sizeof(OFF_T) * 8),
164 got_socketpair, hardlinks, links, ipv6);
166 /* Note that this field may not have type ino_t. It depends
167 * on the complicated interaction between largefile feature
169 rprintf(f, " %d-bit system inums, %d-bit internal inums\n",
170 (int) (sizeof(dumstat->st_ino) * 8),
171 (int) (sizeof(INO64_T) * 8));
174 rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
179 "rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n"
180 "are welcome to redistribute it under certain conditions. See the GNU\n"
181 "General Public Licence for details.\n"
186 void usage(enum logcode F)
188 print_rsync_version(F);
190 rprintf(F,"rsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");
192 rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
193 rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC DEST\n");
194 rprintf(F," or rsync [OPTION]... SRC [SRC]... DEST\n");
195 rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
196 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
197 rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
198 rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n");
199 rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n");
200 rprintf(F," sources separated by space as long as they have same top-level\n");
201 rprintf(F,"\nOptions\n");
202 rprintf(F," -v, --verbose increase verbosity\n");
203 rprintf(F," -q, --quiet decrease verbosity\n");
204 rprintf(F," -c, --checksum always checksum\n");
205 rprintf(F," -a, --archive archive mode\n");
206 rprintf(F," -r, --recursive recurse into directories\n");
207 rprintf(F," -R, --relative use relative path names\n");
208 rprintf(F," -b, --backup make backups (default %s suffix)\n",BACKUP_SUFFIX);
209 rprintf(F," --backup-dir make backups into this directory\n");
210 rprintf(F," --suffix=SUFFIX override backup suffix\n");
211 rprintf(F," -u, --update update only (don't overwrite newer files)\n");
212 rprintf(F," -l, --links copy symlinks as symlinks\n");
213 rprintf(F," -L, --copy-links copy the referent of symlinks\n");
214 rprintf(F," --copy-unsafe-links copy links outside the source tree\n");
215 rprintf(F," --safe-links ignore links outside the destination tree\n");
216 rprintf(F," -H, --hard-links preserve hard links\n");
217 rprintf(F," -p, --perms preserve permissions\n");
218 rprintf(F," -o, --owner preserve owner (root only)\n");
219 rprintf(F," -g, --group preserve group\n");
220 rprintf(F," -D, --devices preserve devices (root only)\n");
221 rprintf(F," -t, --times preserve times\n");
222 rprintf(F," -S, --sparse handle sparse files efficiently\n");
223 rprintf(F," -n, --dry-run show what would have been transferred\n");
224 rprintf(F," -W, --whole-file copy whole files, no incremental checks\n");
225 rprintf(F," --no-whole-file turn off --whole-file\n");
226 rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
227 rprintf(F," -B, --block-size=SIZE checksum blocking size (default %d)\n",BLOCK_SIZE);
228 rprintf(F," -e, --rsh=COMMAND specify rsh replacement\n");
229 rprintf(F," --rsync-path=PATH specify path to rsync on the remote machine\n");
230 rprintf(F," -C, --cvs-exclude auto ignore files in the same way CVS does\n");
231 rprintf(F," --existing only update files that already exist\n");
232 rprintf(F," --ignore-existing ignore files that already exist on the receiving side\n");
233 rprintf(F," --delete delete files that don't exist on the sending side\n");
234 rprintf(F," --delete-excluded also delete excluded files on the receiving side\n");
235 rprintf(F," --delete-after delete after transferring, not before\n");
236 rprintf(F," --ignore-errors delete even if there are IO errors\n");
237 rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
238 rprintf(F," --partial keep partially transferred files\n");
239 rprintf(F," --force force deletion of directories even if not empty\n");
240 rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
241 rprintf(F," --timeout=TIME set IO timeout in seconds\n");
242 rprintf(F," -I, --ignore-times don't exclude files that match length and time\n");
243 rprintf(F," --size-only only use file size when determining if a file should be transferred\n");
244 rprintf(F," --modify-window=NUM Timestamp window (seconds) for file match (default=%d)\n",modify_window);
245 rprintf(F," -T --temp-dir=DIR create temporary files in directory DIR\n");
246 rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
247 rprintf(F," -P equivalent to --partial --progress\n");
248 rprintf(F," -z, --compress compress file data\n");
249 rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
250 rprintf(F," --exclude-from=FILE exclude patterns listed in FILE\n");
251 rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
252 rprintf(F," --include-from=FILE don't exclude patterns listed in FILE\n");
253 rprintf(F," --version print version number\n");
254 rprintf(F," --daemon run as a rsync daemon\n");
255 rprintf(F," --no-detach do not detach from the parent\n");
256 rprintf(F," --address=ADDRESS bind to the specified address\n");
257 rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
258 rprintf(F," --port=PORT specify alternate rsyncd port number\n");
259 rprintf(F," --blocking-io use blocking IO for the remote shell\n");
260 rprintf(F," --no-blocking-io turn off --blocking-io\n");
261 rprintf(F," --stats give some file transfer stats\n");
262 rprintf(F," --progress show progress during transfer\n");
263 rprintf(F," --log-format=FORMAT log file transfers using specified format\n");
264 rprintf(F," --password-file=FILE get password from FILE\n");
265 rprintf(F," --bwlimit=KBPS limit I/O bandwidth, KBytes per second\n");
266 rprintf(F," --write-batch=PREFIX write batch fileset starting with PREFIX\n");
267 rprintf(F," --read-batch=PREFIX read batch fileset starting with PREFIX\n");
268 rprintf(F," -h, --help show this help screen\n");
270 rprintf(F," -4 prefer IPv4\n");
271 rprintf(F," -6 prefer IPv6\n");
276 rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
277 rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
280 enum {OPT_VERSION = 1000, OPT_SUFFIX, OPT_SENDER, OPT_SERVER, OPT_EXCLUDE,
281 OPT_EXCLUDE_FROM, OPT_DELETE, OPT_DELETE_EXCLUDED, OPT_NUMERIC_IDS,
282 OPT_RSYNC_PATH, OPT_FORCE, OPT_TIMEOUT, OPT_DAEMON, OPT_CONFIG, OPT_PORT,
283 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_STATS, OPT_PARTIAL, OPT_PROGRESS,
284 OPT_COPY_UNSAFE_LINKS, OPT_SAFE_LINKS, OPT_COMPARE_DEST,
285 OPT_LOG_FORMAT, OPT_PASSWORD_FILE, OPT_SIZE_ONLY, OPT_ADDRESS,
286 OPT_DELETE_AFTER, OPT_EXISTING, OPT_MAX_DELETE, OPT_BACKUP_DIR,
287 OPT_IGNORE_ERRORS, OPT_BWLIMIT, OPT_BLOCKING_IO,
288 OPT_NO_BLOCKING_IO, OPT_NO_WHOLE_FILE,
289 OPT_MODIFY_WINDOW, OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_IGNORE_EXISTING};
291 static struct poptOption long_options[] = {
292 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
293 {"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0},
294 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
295 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
296 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
297 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times , 0, 0, 0 },
298 {"size-only", 0, POPT_ARG_NONE, &size_only , 0, 0, 0 },
299 {"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
300 {"one-file-system", 'x', POPT_ARG_NONE, &one_file_system , 0, 0, 0 },
301 {"delete", 0, POPT_ARG_NONE, &delete_mode , 0, 0, 0 },
302 {"existing", 0, POPT_ARG_NONE, &only_existing , 0, 0, 0 },
303 {"ignore-existing", 0, POPT_ARG_NONE, &opt_ignore_existing , 0, 0, 0 },
304 {"delete-after", 0, POPT_ARG_NONE, &delete_after , 0, 0, 0 },
305 {"delete-excluded", 0, POPT_ARG_NONE, 0, OPT_DELETE_EXCLUDED, 0, 0 },
306 {"force", 0, POPT_ARG_NONE, &force_delete , 0, 0, 0 },
307 {"numeric-ids", 0, POPT_ARG_NONE, &numeric_ids , 0, 0, 0 },
308 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
309 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
310 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
311 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
312 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks , 0, 0, 0 },
313 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
314 {"backup", 'b', POPT_ARG_NONE, &make_backups , 0, 0, 0 },
315 {"dry-run", 'n', POPT_ARG_NONE, &dry_run , 0, 0, 0 },
316 {"sparse", 'S', POPT_ARG_NONE, &sparse_files , 0, 0, 0 },
317 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude , 0, 0, 0 },
318 {"update", 'u', POPT_ARG_NONE, &update_only , 0, 0, 0 },
319 {"links", 'l', POPT_ARG_NONE, &preserve_links , 0, 0, 0 },
320 {"copy-links", 'L', POPT_ARG_NONE, ©_links , 0, 0, 0 },
321 {"whole-file", 'W', POPT_ARG_NONE, &whole_file , 0, 0, 0 },
322 {"no-whole-file", 0, POPT_ARG_NONE, &no_whole_file , 0, 0, 0 },
323 {"copy-unsafe-links", 0, POPT_ARG_NONE, ©_unsafe_links , 0, 0, 0 },
324 {"perms", 'p', POPT_ARG_NONE, &preserve_perms , 0, 0, 0 },
325 {"owner", 'o', POPT_ARG_NONE, &preserve_uid , 0, 0, 0 },
326 {"group", 'g', POPT_ARG_NONE, &preserve_gid , 0, 0, 0 },
327 {"devices", 'D', POPT_ARG_NONE, &preserve_devices , 0, 0, 0 },
328 {"times", 't', POPT_ARG_NONE, &preserve_times , 0, 0, 0 },
329 {"checksum", 'c', POPT_ARG_NONE, &always_checksum , 0, 0, 0 },
330 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
331 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
332 {"archive", 'a', POPT_ARG_NONE, 0, 'a', 0, 0 },
333 {"server", 0, POPT_ARG_NONE, &am_server , 0, 0, 0 },
334 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
335 {"recursive", 'r', POPT_ARG_NONE, &recurse , 0, 0, 0 },
336 {"relative", 'R', POPT_ARG_NONE, &relative_paths , 0, 0, 0 },
337 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd , 0, 0, 0 },
338 {"block-size", 'B', POPT_ARG_INT, &block_size , 0, 0, 0 },
339 {"max-delete", 0, POPT_ARG_INT, &max_delete , 0, 0, 0 },
340 {"timeout", 0, POPT_ARG_INT, &io_timeout , 0, 0, 0 },
341 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir , 0, 0, 0 },
342 {"compare-dest", 0, POPT_ARG_STRING, &compare_dest , 0, 0, 0 },
343 /* TODO: Should this take an optional int giving the compression level? */
344 {"compress", 'z', POPT_ARG_NONE, &do_compression , 0, 0, 0 },
345 {"daemon", 0, POPT_ARG_NONE, &am_daemon , 0, 0, 0 },
346 {"no-detach", 0, POPT_ARG_NONE, &no_detach , 0, 0, 0 },
347 {"stats", 0, POPT_ARG_NONE, &do_stats , 0, 0, 0 },
348 {"progress", 0, POPT_ARG_NONE, &do_progress , 0, 0, 0 },
349 {"partial", 0, POPT_ARG_NONE, &keep_partial , 0, 0, 0 },
350 {"ignore-errors", 0, POPT_ARG_NONE, &ignore_errors , 0, 0, 0 },
351 {"blocking-io", 0, POPT_ARG_NONE, &blocking_io , 0, 0, 0 },
352 {"no-blocking-io", 0, POPT_ARG_NONE, 0, OPT_NO_BLOCKING_IO, 0, 0 },
353 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
354 {"config", 0, POPT_ARG_STRING, &config_file , 0, 0, 0 },
355 {"port", 0, POPT_ARG_INT, &rsync_port , 0, 0, 0 },
356 {"log-format", 0, POPT_ARG_STRING, &log_format , 0, 0, 0 },
357 {"bwlimit", 0, POPT_ARG_INT, &bwlimit , 0, 0, 0 },
358 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
359 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir , 0, 0, 0 },
360 {"hard-links", 'H', POPT_ARG_NONE, &preserve_hard_links , 0, 0, 0 },
361 {"read-batch", 0, POPT_ARG_STRING, &batch_prefix, OPT_READ_BATCH, 0, 0 },
362 {"write-batch", 0, POPT_ARG_STRING, &batch_prefix, OPT_WRITE_BATCH, 0, 0 },
364 {0, '4', POPT_ARG_VAL, &default_af_hint, AF_INET , 0, 0 },
365 {0, '6', POPT_ARG_VAL, &default_af_hint, AF_INET6 , 0, 0 },
371 static char err_buf[100];
374 /* We store the option error message, if any, so that we can log the
375 connection attempt (which requires parsing the options), and then
376 show the error later on. */
377 void option_error(void)
380 rprintf(FLOG, "%s", err_buf);
381 rprintf(FERROR, "%s: %s", RSYNC_NAME, err_buf);
383 rprintf (FERROR, "Error parsing options: "
384 "option may be supported on client but not on server?\n");
385 rprintf (FERROR, RSYNC_NAME ": Error parsing options: "
386 "option may be supported on client but not on server?\n");
390 /* check to see if we should refuse this option */
391 static int check_refuse_options(char *ref, int opt)
397 for (i=0; long_options[i].longName; i++) {
398 if (long_options[i].val == opt) break;
401 if (!long_options[i].longName) return 0;
403 name = long_options[i].longName;
406 while ((p = strstr(ref,name))) {
407 if ((p==ref || p[-1]==' ') &&
408 (p[len] == ' ' || p[len] == 0)) {
409 snprintf(err_buf,sizeof(err_buf),
410 "The '%s' option is not supported by this server\n", name);
419 static int count_args(char const **argv)
423 while (argv[i] != NULL)
430 /* Process command line arguments. Called on both local and remote.
431 * Returns if all options are OK, otherwise fills in err_buf and
433 int parse_arguments(int *argc, const char ***argv, int frommain)
436 char *ref = lp_refuse_options(module_id);
439 /* TODO: Call poptReadDefaultConfig; handle errors. */
441 /* The context leaks in case of an error, but if there's a
442 * problem we always exit anyhow. */
443 pc = poptGetContext(RSYNC_NAME, *argc, *argv, long_options, 0);
445 while ((opt = poptGetNextOpt(pc)) != -1) {
447 if (check_refuse_options(ref, opt)) return 0;
450 /* most options are handled automatically by popt;
451 * only special cases are returned and listed here. */
455 print_rsync_version(FINFO);
458 case OPT_MODIFY_WINDOW:
459 /* The value has already been set by popt, but
460 * we need to remember that we're using a
461 * non-default setting. */
462 modify_window_set = 1;
465 case OPT_DELETE_EXCLUDED:
471 add_exclude(poptGetOptArg(pc), 0);
475 add_exclude(poptGetOptArg(pc), 1);
478 case OPT_EXCLUDE_FROM:
479 add_exclude_file(poptGetOptArg(pc), 1, 0);
482 case OPT_INCLUDE_FROM:
483 add_exclude_file(poptGetOptArg(pc), 1, 1);
486 case OPT_NO_BLOCKING_IO:
495 #if SUPPORT_HARD_LINKS
496 preserve_hard_links=1;
498 /* FIXME: Don't say "server" if this is
499 * happening on the client. */
500 /* FIXME: Why do we have the duplicated
501 * rprintf? Everybody who gets this message
502 * ought to send it to the client and also to
504 snprintf(err_buf,sizeof(err_buf),
505 "hard links are not supported on this %s\n",
506 am_server ? "server" : "client");
507 rprintf(FERROR,"ERROR: hard links not supported on this platform\n");
509 #endif /* SUPPORT_HARD_LINKS */
517 if (frommain) quiet++;
535 exit_cleanup(RERR_SYNTAX);
545 case OPT_WRITE_BATCH:
546 /* popt stores the filename in batch_prefix for us */
551 /* popt stores the filename in batch_prefix for us */
556 /* FIXME: If --daemon is specified, then errors for later
557 * parameters seem to disappear. */
558 snprintf(err_buf, sizeof(err_buf),
560 am_server ? "on remote machine: " : "",
561 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
567 if (write_batch && read_batch) {
568 snprintf(err_buf,sizeof(err_buf),
569 "write-batch and read-batch can not be used together\n");
570 rprintf(FERROR,"ERROR: write-batch and read-batch"
571 " can not be used together\n");
575 if (do_compression && (write_batch || read_batch)) {
576 snprintf(err_buf,sizeof(err_buf),
577 "compress can not be used with write-batch or read-batch\n");
578 rprintf(FERROR,"ERROR: compress can not be used with"
579 " write-batch or read-batch\n");
583 *argv = poptGetArgs(pc);
585 *argc = count_args(*argv);
593 /* Construct a filtered list of options to pass through from the
594 * client to the server */
595 void server_options(char **args,int *argc)
598 static char argstr[50];
599 static char bsize[30];
600 static char iotime[30];
601 static char mdelete[30];
602 static char mwindow[30];
604 /* Leave room for ``--(write|read)-batch='' */
605 static char fext[MAXPATHLEN + 15];
609 if (blocking_io == -1)
612 args[ac++] = "--server";
615 args[ac++] = "--sender";
619 for (i=0;i<verbose;i++)
622 /* the -q option is intentionally left out */
634 assert(whole_file == 0 || whole_file == 1);
637 /* We don't need to send --no-whole-file, because it's the
638 * default for remote transfers, and in any case old versions
639 * of rsync will not understand it. */
641 if (preserve_hard_links)
647 if (preserve_devices)
670 /* this is a complete hack - blame Rusty
672 this is a hack to make the list_only (remote file list)
674 if (list_only && !recurse)
679 if (x != 1) args[ac++] = argstr;
681 if (block_size != BLOCK_SIZE) {
682 snprintf(bsize,sizeof(bsize),"-B%d",block_size);
686 if (max_delete && am_sender) {
687 snprintf(mdelete,sizeof(mdelete),"--max-delete=%d",max_delete);
688 args[ac++] = mdelete;
691 if (batch_prefix != NULL) {
694 fmt = "--write-batch=%s";
697 fmt = "--read-batch=%s";
698 snprintf(fext,sizeof(fext),fmt,batch_prefix);
703 snprintf(iotime,sizeof(iotime),"--timeout=%d",io_timeout);
708 snprintf(bw,sizeof(bw),"--bwlimit=%d",bwlimit);
712 if (strcmp(backup_suffix, BACKUP_SUFFIX)) {
713 args[ac++] = "--suffix";
714 args[ac++] = backup_suffix;
717 if (delete_mode && !delete_excluded)
718 args[ac++] = "--delete";
721 args[ac++] = "--delete-excluded";
724 args[ac++] = "--size-only";
726 if (modify_window_set) {
727 snprintf(mwindow,sizeof(mwindow),"--modify-window=%d",
729 args[ac++] = mwindow;
733 args[ac++] = "--partial";
736 args[ac++] = "--force";
739 args[ac++] = "--delete-after";
742 args[ac++] = "--ignore-errors";
744 if (copy_unsafe_links)
745 args[ac++] = "--copy-unsafe-links";
748 args[ac++] = "--safe-links";
751 args[ac++] = "--numeric-ids";
753 if (only_existing && am_sender)
754 args[ac++] = "--existing";
756 if (opt_ignore_existing && am_sender)
757 args[ac++] = "--ignore-existing";
760 args[ac++] = "--temp-dir";
764 if (backup_dir && am_sender) {
765 /* only the receiver needs this option, if we are the sender
766 * then we need to send it to the receiver.
768 args[ac++] = "--backup-dir";
769 args[ac++] = backup_dir;
772 if (compare_dest && am_sender) {
773 /* the server only needs this option if it is not the sender,
774 * and it may be an older version that doesn't know this
775 * option, so don't send it if client is the sender.
777 args[ac++] = "--compare-dest";
778 args[ac++] = compare_dest;