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, \n",
163 (int) (sizeof(OFF_T) * 8),
164 got_socketpair, hardlinks, links);
166 /* Note that this field may not have type ino_t. It depends
167 * on the complicated interaction between largefile feature
169 rprintf(f, " %sIPv6, %d-bit system inums, %d-bit internal inums\n",
171 (int) (sizeof(dumstat->st_ino) * 8),
172 (int) (sizeof(INO64_T) * 8));
175 rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
180 "rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n"
181 "are welcome to redistribute it under certain conditions. See the GNU\n"
182 "General Public Licence for details.\n"
187 void usage(enum logcode F)
189 print_rsync_version(F);
191 rprintf(F,"\nrsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");
193 rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
194 rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC DEST\n");
195 rprintf(F," or rsync [OPTION]... SRC [SRC]... DEST\n");
196 rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
197 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
198 rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
199 rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n");
200 rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n");
201 rprintf(F," sources separated by space as long as they have same top-level\n");
202 rprintf(F,"\nOptions\n");
203 rprintf(F," -v, --verbose increase verbosity\n");
204 rprintf(F," -q, --quiet decrease verbosity\n");
205 rprintf(F," -c, --checksum always checksum\n");
206 rprintf(F," -a, --archive archive mode\n");
207 rprintf(F," -r, --recursive recurse into directories\n");
208 rprintf(F," -R, --relative use relative path names\n");
209 rprintf(F," -b, --backup make backups (default %s suffix)\n",BACKUP_SUFFIX);
210 rprintf(F," --backup-dir make backups into this directory\n");
211 rprintf(F," --suffix=SUFFIX override backup suffix\n");
212 rprintf(F," -u, --update update only (don't overwrite newer files)\n");
213 rprintf(F," -l, --links copy symlinks as symlinks\n");
214 rprintf(F," -L, --copy-links copy the referent of symlinks\n");
215 rprintf(F," --copy-unsafe-links copy links outside the source tree\n");
216 rprintf(F," --safe-links ignore links outside the destination tree\n");
217 rprintf(F," -H, --hard-links preserve hard links\n");
218 rprintf(F," -p, --perms preserve permissions\n");
219 rprintf(F," -o, --owner preserve owner (root only)\n");
220 rprintf(F," -g, --group preserve group\n");
221 rprintf(F," -D, --devices preserve devices (root only)\n");
222 rprintf(F," -t, --times preserve times\n");
223 rprintf(F," -S, --sparse handle sparse files efficiently\n");
224 rprintf(F," -n, --dry-run show what would have been transferred\n");
225 rprintf(F," -W, --whole-file copy whole files, no incremental checks\n");
226 rprintf(F," --no-whole-file turn off --whole-file\n");
227 rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
228 rprintf(F," -B, --block-size=SIZE checksum blocking size (default %d)\n",BLOCK_SIZE);
229 rprintf(F," -e, --rsh=COMMAND specify rsh replacement\n");
230 rprintf(F," --rsync-path=PATH specify path to rsync on the remote machine\n");
231 rprintf(F," -C, --cvs-exclude auto ignore files in the same way CVS does\n");
232 rprintf(F," --existing only update files that already exist\n");
233 rprintf(F," --ignore-existing ignore files that already exist on the receiving side\n");
234 rprintf(F," --delete delete files that don't exist on the sending side\n");
235 rprintf(F," --delete-excluded also delete excluded files on the receiving side\n");
236 rprintf(F," --delete-after delete after transferring, not before\n");
237 rprintf(F," --ignore-errors delete even if there are IO errors\n");
238 rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
239 rprintf(F," --partial keep partially transferred files\n");
240 rprintf(F," --force force deletion of directories even if not empty\n");
241 rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
242 rprintf(F," --timeout=TIME set IO timeout in seconds\n");
243 rprintf(F," -I, --ignore-times don't exclude files that match length and time\n");
244 rprintf(F," --size-only only use file size when determining if a file should be transferred\n");
245 rprintf(F," --modify-window=NUM Timestamp window (seconds) for file match (default=%d)\n",modify_window);
246 rprintf(F," -T --temp-dir=DIR create temporary files in directory DIR\n");
247 rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
248 rprintf(F," -P equivalent to --partial --progress\n");
249 rprintf(F," -z, --compress compress file data\n");
250 rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
251 rprintf(F," --exclude-from=FILE exclude patterns listed in FILE\n");
252 rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
253 rprintf(F," --include-from=FILE don't exclude patterns listed in FILE\n");
254 rprintf(F," --version print version number\n");
255 rprintf(F," --daemon run as a rsync daemon\n");
256 rprintf(F," --no-detach do not detach from the parent\n");
257 rprintf(F," --address=ADDRESS bind to the specified address\n");
258 rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
259 rprintf(F," --port=PORT specify alternate rsyncd port number\n");
260 rprintf(F," --blocking-io use blocking IO for the remote shell\n");
261 rprintf(F," --no-blocking-io turn off --blocking-io\n");
262 rprintf(F," --stats give some file transfer stats\n");
263 rprintf(F," --progress show progress during transfer\n");
264 rprintf(F," --log-format=FORMAT log file transfers using specified format\n");
265 rprintf(F," --password-file=FILE get password from FILE\n");
266 rprintf(F," --bwlimit=KBPS limit I/O bandwidth, KBytes per second\n");
267 rprintf(F," --write-batch=PREFIX write batch fileset starting with PREFIX\n");
268 rprintf(F," --read-batch=PREFIX read batch fileset starting with PREFIX\n");
269 rprintf(F," -h, --help show this help screen\n");
271 rprintf(F," -4 prefer IPv4\n");
272 rprintf(F," -6 prefer IPv6\n");
277 rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
278 rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
281 enum {OPT_VERSION = 1000, OPT_SUFFIX, OPT_SENDER, OPT_SERVER, OPT_EXCLUDE,
282 OPT_EXCLUDE_FROM, OPT_DELETE, OPT_DELETE_EXCLUDED, OPT_NUMERIC_IDS,
283 OPT_RSYNC_PATH, OPT_FORCE, OPT_TIMEOUT, OPT_DAEMON, OPT_CONFIG, OPT_PORT,
284 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_STATS, OPT_PARTIAL, OPT_PROGRESS,
285 OPT_COPY_UNSAFE_LINKS, OPT_SAFE_LINKS, OPT_COMPARE_DEST,
286 OPT_LOG_FORMAT, OPT_PASSWORD_FILE, OPT_SIZE_ONLY, OPT_ADDRESS,
287 OPT_DELETE_AFTER, OPT_EXISTING, OPT_MAX_DELETE, OPT_BACKUP_DIR,
288 OPT_IGNORE_ERRORS, OPT_BWLIMIT, OPT_BLOCKING_IO,
289 OPT_NO_BLOCKING_IO, OPT_WHOLE_FILE, OPT_NO_WHOLE_FILE,
290 OPT_MODIFY_WINDOW, OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_IGNORE_EXISTING};
292 static struct poptOption long_options[] = {
293 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
294 {"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0},
295 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
296 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
297 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
298 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times , 0, 0, 0 },
299 {"size-only", 0, POPT_ARG_NONE, &size_only , 0, 0, 0 },
300 {"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
301 {"one-file-system", 'x', POPT_ARG_NONE, &one_file_system , 0, 0, 0 },
302 {"delete", 0, POPT_ARG_NONE, &delete_mode , 0, 0, 0 },
303 {"existing", 0, POPT_ARG_NONE, &only_existing , 0, 0, 0 },
304 {"ignore-existing", 0, POPT_ARG_NONE, &opt_ignore_existing , 0, 0, 0 },
305 {"delete-after", 0, POPT_ARG_NONE, &delete_after , 0, 0, 0 },
306 {"delete-excluded", 0, POPT_ARG_NONE, 0, OPT_DELETE_EXCLUDED, 0, 0 },
307 {"force", 0, POPT_ARG_NONE, &force_delete , 0, 0, 0 },
308 {"numeric-ids", 0, POPT_ARG_NONE, &numeric_ids , 0, 0, 0 },
309 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
310 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
311 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
312 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
313 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks , 0, 0, 0 },
314 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
315 {"backup", 'b', POPT_ARG_NONE, &make_backups , 0, 0, 0 },
316 {"dry-run", 'n', POPT_ARG_NONE, &dry_run , 0, 0, 0 },
317 {"sparse", 'S', POPT_ARG_NONE, &sparse_files , 0, 0, 0 },
318 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude , 0, 0, 0 },
319 {"update", 'u', POPT_ARG_NONE, &update_only , 0, 0, 0 },
320 {"links", 'l', POPT_ARG_NONE, &preserve_links , 0, 0, 0 },
321 {"copy-links", 'L', POPT_ARG_NONE, ©_links , 0, 0, 0 },
322 {"whole-file", 'W', POPT_ARG_NONE, 0, OPT_WHOLE_FILE, 0, 0 },
323 {"no-whole-file", 0, POPT_ARG_NONE, 0, OPT_NO_WHOLE_FILE, 0, 0 },
324 {"copy-unsafe-links", 0, POPT_ARG_NONE, ©_unsafe_links , 0, 0, 0 },
325 {"perms", 'p', POPT_ARG_NONE, &preserve_perms , 0, 0, 0 },
326 {"owner", 'o', POPT_ARG_NONE, &preserve_uid , 0, 0, 0 },
327 {"group", 'g', POPT_ARG_NONE, &preserve_gid , 0, 0, 0 },
328 {"devices", 'D', POPT_ARG_NONE, &preserve_devices , 0, 0, 0 },
329 {"times", 't', POPT_ARG_NONE, &preserve_times , 0, 0, 0 },
330 {"checksum", 'c', POPT_ARG_NONE, &always_checksum , 0, 0, 0 },
331 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
332 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
333 {"archive", 'a', POPT_ARG_NONE, 0, 'a', 0, 0 },
334 {"server", 0, POPT_ARG_NONE, &am_server , 0, 0, 0 },
335 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
336 {"recursive", 'r', POPT_ARG_NONE, &recurse , 0, 0, 0 },
337 {"relative", 'R', POPT_ARG_NONE, &relative_paths , 0, 0, 0 },
338 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd , 0, 0, 0 },
339 {"block-size", 'B', POPT_ARG_INT, &block_size , 0, 0, 0 },
340 {"max-delete", 0, POPT_ARG_INT, &max_delete , 0, 0, 0 },
341 {"timeout", 0, POPT_ARG_INT, &io_timeout , 0, 0, 0 },
342 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir , 0, 0, 0 },
343 {"compare-dest", 0, POPT_ARG_STRING, &compare_dest , 0, 0, 0 },
344 /* TODO: Should this take an optional int giving the compression level? */
345 {"compress", 'z', POPT_ARG_NONE, &do_compression , 0, 0, 0 },
346 {"daemon", 0, POPT_ARG_NONE, &am_daemon , 0, 0, 0 },
347 {"no-detach", 0, POPT_ARG_NONE, &no_detach , 0, 0, 0 },
348 {"stats", 0, POPT_ARG_NONE, &do_stats , 0, 0, 0 },
349 {"progress", 0, POPT_ARG_NONE, &do_progress , 0, 0, 0 },
350 {"partial", 0, POPT_ARG_NONE, &keep_partial , 0, 0, 0 },
351 {"ignore-errors", 0, POPT_ARG_NONE, &ignore_errors , 0, 0, 0 },
352 {"blocking-io", 0, POPT_ARG_NONE, &blocking_io , 0, 0, 0 },
353 {"no-blocking-io", 0, POPT_ARG_NONE, 0, OPT_NO_BLOCKING_IO, 0, 0 },
354 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
355 {"config", 0, POPT_ARG_STRING, &config_file , 0, 0, 0 },
356 {"port", 0, POPT_ARG_INT, &rsync_port , 0, 0, 0 },
357 {"log-format", 0, POPT_ARG_STRING, &log_format , 0, 0, 0 },
358 {"bwlimit", 0, POPT_ARG_INT, &bwlimit , 0, 0, 0 },
359 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
360 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir , 0, 0, 0 },
361 {"hard-links", 'H', POPT_ARG_NONE, &preserve_hard_links , 0, 0, 0 },
362 {"read-batch", 0, POPT_ARG_STRING, &batch_prefix, OPT_READ_BATCH, 0, 0 },
363 {"write-batch", 0, POPT_ARG_STRING, &batch_prefix, OPT_WRITE_BATCH, 0, 0 },
365 {0, '4', POPT_ARG_VAL, &default_af_hint, AF_INET , 0, 0 },
366 {0, '6', POPT_ARG_VAL, &default_af_hint, AF_INET6 , 0, 0 },
372 static char err_buf[100];
375 /* We store the option error message, if any, so that we can log the
376 connection attempt (which requires parsing the options), and then
377 show the error later on. */
378 void option_error(void)
381 rprintf(FLOG, "%s", err_buf);
382 rprintf(FERROR, "%s: %s", RSYNC_NAME, err_buf);
384 rprintf (FERROR, "Error parsing options: "
385 "option may be supported on client but not on server?\n");
386 rprintf (FERROR, RSYNC_NAME ": Error parsing options: "
387 "option may be supported on client but not on server?\n");
391 /* check to see if we should refuse this option */
392 static int check_refuse_options(char *ref, int opt)
398 for (i=0; long_options[i].longName; i++) {
399 if (long_options[i].val == opt) break;
402 if (!long_options[i].longName) return 0;
404 name = long_options[i].longName;
407 while ((p = strstr(ref,name))) {
408 if ((p==ref || p[-1]==' ') &&
409 (p[len] == ' ' || p[len] == 0)) {
410 snprintf(err_buf,sizeof(err_buf),
411 "The '%s' option is not supported by this server\n", name);
420 static int count_args(char const **argv)
424 while (argv[i] != NULL)
431 /* Process command line arguments. Called on both local and remote.
432 * Returns if all options are OK, otherwise fills in err_buf and
434 int parse_arguments(int *argc, const char ***argv, int frommain)
437 char *ref = lp_refuse_options(module_id);
440 /* TODO: Call poptReadDefaultConfig; handle errors. */
442 /* The context leaks in case of an error, but if there's a
443 * problem we always exit anyhow. */
444 pc = poptGetContext(RSYNC_NAME, *argc, *argv, long_options, 0);
446 while ((opt = poptGetNextOpt(pc)) != -1) {
448 if (check_refuse_options(ref, opt)) return 0;
451 /* most options are handled automatically by popt;
452 * only special cases are returned and listed here. */
456 print_rsync_version(FINFO);
459 case OPT_MODIFY_WINDOW:
460 /* The value has already been set by popt, but
461 * we need to remember that we're using a
462 * non-default setting. */
463 modify_window_set = 1;
466 case OPT_DELETE_EXCLUDED:
472 add_exclude(poptGetOptArg(pc), 0);
476 add_exclude(poptGetOptArg(pc), 1);
479 case OPT_EXCLUDE_FROM:
480 add_exclude_file(poptGetOptArg(pc), 1, 0);
483 case OPT_INCLUDE_FROM:
484 add_exclude_file(poptGetOptArg(pc), 1, 1);
492 case OPT_NO_WHOLE_FILE:
497 case OPT_NO_BLOCKING_IO:
506 #if SUPPORT_HARD_LINKS
507 preserve_hard_links=1;
509 /* FIXME: Don't say "server" if this is
510 * happening on the client. */
511 /* FIXME: Why do we have the duplicated
512 * rprintf? Everybody who gets this message
513 * ought to send it to the client and also to
515 snprintf(err_buf,sizeof(err_buf),
516 "hard links are not supported on this %s\n",
517 am_server ? "server" : "client");
518 rprintf(FERROR,"ERROR: hard links not supported on this platform\n");
520 #endif /* SUPPORT_HARD_LINKS */
528 if (frommain) quiet++;
546 exit_cleanup(RERR_SYNTAX);
556 case OPT_WRITE_BATCH:
557 /* popt stores the filename in batch_prefix for us */
562 /* popt stores the filename in batch_prefix for us */
567 /* FIXME: If --daemon is specified, then errors for later
568 * parameters seem to disappear. */
569 snprintf(err_buf, sizeof(err_buf),
571 am_server ? "on remote machine: " : "",
572 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
578 if (write_batch && read_batch) {
579 snprintf(err_buf,sizeof(err_buf),
580 "write-batch and read-batch can not be used together\n");
581 rprintf(FERROR,"ERROR: write-batch and read-batch"
582 " can not be used together\n");
586 if (do_compression && (write_batch || read_batch)) {
587 snprintf(err_buf,sizeof(err_buf),
588 "compress can not be used with write-batch or read-batch\n");
589 rprintf(FERROR,"ERROR: compress can not be used with"
590 " write-batch or read-batch\n");
594 *argv = poptGetArgs(pc);
596 *argc = count_args(*argv);
604 /* Construct a filtered list of options to pass through from the
605 * client to the server */
606 void server_options(char **args,int *argc)
609 static char argstr[50];
610 static char bsize[30];
611 static char iotime[30];
612 static char mdelete[30];
613 static char mwindow[30];
615 /* Leave room for ``--(write|read)-batch='' */
616 static char fext[MAXPATHLEN + 15];
620 if (blocking_io == -1)
623 args[ac++] = "--server";
626 args[ac++] = "--sender";
630 for (i=0;i<verbose;i++)
633 /* the -q option is intentionally left out */
645 assert(whole_file == 0 || whole_file == 1);
648 /* We don't need to send --no-whole-file, because it's the
649 * default for remote transfers, and in any case old versions
650 * of rsync will not understand it. */
652 if (preserve_hard_links)
658 if (preserve_devices)
681 /* this is a complete hack - blame Rusty
683 this is a hack to make the list_only (remote file list)
685 if (list_only && !recurse)
690 if (x != 1) args[ac++] = argstr;
692 if (block_size != BLOCK_SIZE) {
693 snprintf(bsize,sizeof(bsize),"-B%d",block_size);
697 if (max_delete && am_sender) {
698 snprintf(mdelete,sizeof(mdelete),"--max-delete=%d",max_delete);
699 args[ac++] = mdelete;
702 if (batch_prefix != NULL) {
705 fmt = "--write-batch=%s";
708 fmt = "--read-batch=%s";
709 snprintf(fext,sizeof(fext),fmt,batch_prefix);
714 snprintf(iotime,sizeof(iotime),"--timeout=%d",io_timeout);
719 snprintf(bw,sizeof(bw),"--bwlimit=%d",bwlimit);
723 if (strcmp(backup_suffix, BACKUP_SUFFIX)) {
724 args[ac++] = "--suffix";
725 args[ac++] = backup_suffix;
728 if (delete_mode && !delete_excluded)
729 args[ac++] = "--delete";
732 args[ac++] = "--delete-excluded";
735 args[ac++] = "--size-only";
737 if (modify_window_set) {
738 snprintf(mwindow,sizeof(mwindow),"--modify-window=%d",
740 args[ac++] = mwindow;
744 args[ac++] = "--partial";
747 args[ac++] = "--force";
750 args[ac++] = "--delete-after";
753 args[ac++] = "--ignore-errors";
755 if (copy_unsafe_links)
756 args[ac++] = "--copy-unsafe-links";
759 args[ac++] = "--safe-links";
762 args[ac++] = "--numeric-ids";
764 if (only_existing && am_sender)
765 args[ac++] = "--existing";
767 if (opt_ignore_existing && am_sender)
768 args[ac++] = "--ignore-existing";
771 args[ac++] = "--temp-dir";
775 if (backup_dir && am_sender) {
776 /* only the receiver needs this option, if we are the sender
777 * then we need to send it to the receiver.
779 args[ac++] = "--backup-dir";
780 args[ac++] = backup_dir;
783 if (compare_dest && am_sender) {
784 /* the server only needs this option if it is not the sender,
785 * and it may be an older version that doesn't know this
786 * option, so don't send it if client is the sender.
788 args[ac++] = "--compare-dest";
789 args[ac++] = compare_dest;