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 * If True, send the whole file as literal data rather than trying to
28 * create an incremental diff.
30 * If both are 0, then look at whether we're local or remote and go by
33 * @sa disable_deltas_p()
36 int no_whole_file = 0;
39 int preserve_links = 0;
40 int preserve_hard_links = 0;
41 int preserve_perms = 0;
42 int preserve_devices = 0;
45 int preserve_times = 0;
52 int delete_excluded=0;
53 int one_file_system=0;
74 int copy_unsafe_links=0;
75 int block_size=BLOCK_SIZE;
80 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));
173 #ifdef MAINTAINER_MODE
174 rprintf(f, " panic action: \"%s\"\n",
179 rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
184 "rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n"
185 "are welcome to redistribute it under certain conditions. See the GNU\n"
186 "General Public Licence for details.\n"
191 void usage(enum logcode F)
193 print_rsync_version(F);
195 rprintf(F,"\nrsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");
197 rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
198 rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC DEST\n");
199 rprintf(F," or rsync [OPTION]... SRC [SRC]... DEST\n");
200 rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
201 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
202 rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
203 rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n");
204 rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n");
205 rprintf(F," sources separated by space as long as they have same top-level\n");
206 rprintf(F,"\nOptions\n");
207 rprintf(F," -v, --verbose increase verbosity\n");
208 rprintf(F," -q, --quiet decrease verbosity\n");
209 rprintf(F," -c, --checksum always checksum\n");
210 rprintf(F," -a, --archive archive mode\n");
211 rprintf(F," -r, --recursive recurse into directories\n");
212 rprintf(F," -R, --relative use relative path names\n");
213 rprintf(F," -b, --backup make backups (default %s suffix)\n",BACKUP_SUFFIX);
214 rprintf(F," --backup-dir make backups into this directory\n");
215 rprintf(F," --suffix=SUFFIX override backup suffix\n");
216 rprintf(F," -u, --update update only (don't overwrite newer files)\n");
217 rprintf(F," -l, --links copy symlinks as symlinks\n");
218 rprintf(F," -L, --copy-links copy the referent of symlinks\n");
219 rprintf(F," --copy-unsafe-links copy links outside the source tree\n");
220 rprintf(F," --safe-links ignore links outside the destination tree\n");
221 rprintf(F," -H, --hard-links preserve hard links\n");
222 rprintf(F," -p, --perms preserve permissions\n");
223 rprintf(F," -o, --owner preserve owner (root only)\n");
224 rprintf(F," -g, --group preserve group\n");
225 rprintf(F," -D, --devices preserve devices (root only)\n");
226 rprintf(F," -t, --times preserve times\n");
227 rprintf(F," -S, --sparse handle sparse files efficiently\n");
228 rprintf(F," -n, --dry-run show what would have been transferred\n");
229 rprintf(F," -W, --whole-file copy whole files, no incremental checks\n");
230 rprintf(F," --no-whole-file turn off --whole-file\n");
231 rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
232 rprintf(F," -B, --block-size=SIZE checksum blocking size (default %d)\n",BLOCK_SIZE);
233 rprintf(F," -e, --rsh=COMMAND specify rsh replacement\n");
234 rprintf(F," --rsync-path=PATH specify path to rsync on the remote machine\n");
235 rprintf(F," -C, --cvs-exclude auto ignore files in the same way CVS does\n");
236 rprintf(F," --existing only update files that already exist\n");
237 rprintf(F," --ignore-existing ignore files that already exist on the receiving side\n");
238 rprintf(F," --delete delete files that don't exist on the sending side\n");
239 rprintf(F," --delete-excluded also delete excluded files on the receiving side\n");
240 rprintf(F," --delete-after delete after transferring, not before\n");
241 rprintf(F," --ignore-errors delete even if there are IO errors\n");
242 rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
243 rprintf(F," --partial keep partially transferred files\n");
244 rprintf(F," --force force deletion of directories even if not empty\n");
245 rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
246 rprintf(F," --timeout=TIME set IO timeout in seconds\n");
247 rprintf(F," -I, --ignore-times don't exclude files that match length and time\n");
248 rprintf(F," --size-only only use file size when determining if a file should be transferred\n");
249 rprintf(F," --modify-window=NUM Timestamp window (seconds) for file match (default=%d)\n",modify_window);
250 rprintf(F," -T --temp-dir=DIR create temporary files in directory DIR\n");
251 rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
252 rprintf(F," -P equivalent to --partial --progress\n");
253 rprintf(F," -z, --compress compress file data\n");
254 rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
255 rprintf(F," --exclude-from=FILE exclude patterns listed in FILE\n");
256 rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
257 rprintf(F," --include-from=FILE don't exclude patterns listed in FILE\n");
258 rprintf(F," --version print version number\n");
259 rprintf(F," --daemon run as a rsync daemon\n");
260 rprintf(F," --no-detach do not detach from the parent\n");
261 rprintf(F," --address=ADDRESS bind to the specified address\n");
262 rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
263 rprintf(F," --port=PORT specify alternate rsyncd port number\n");
264 rprintf(F," --blocking-io use blocking IO for the remote shell\n");
265 rprintf(F," --no-blocking-io turn off --blocking-io\n");
266 rprintf(F," --stats give some file transfer stats\n");
267 rprintf(F," --progress show progress during transfer\n");
268 rprintf(F," --log-format=FORMAT log file transfers using specified format\n");
269 rprintf(F," --password-file=FILE get password from FILE\n");
270 rprintf(F," --bwlimit=KBPS limit I/O bandwidth, KBytes per second\n");
271 rprintf(F," --write-batch=PREFIX write batch fileset starting with PREFIX\n");
272 rprintf(F," --read-batch=PREFIX read batch fileset starting with PREFIX\n");
273 rprintf(F," -h, --help show this help screen\n");
275 rprintf(F," -4 prefer IPv4\n");
276 rprintf(F," -6 prefer IPv6\n");
281 rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
282 rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
285 enum {OPT_VERSION = 1000, OPT_SUFFIX, OPT_SENDER, OPT_SERVER, OPT_EXCLUDE,
286 OPT_EXCLUDE_FROM, OPT_DELETE, OPT_DELETE_EXCLUDED, OPT_NUMERIC_IDS,
287 OPT_RSYNC_PATH, OPT_FORCE, OPT_TIMEOUT, OPT_DAEMON, OPT_CONFIG, OPT_PORT,
288 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_STATS, OPT_PARTIAL, OPT_PROGRESS,
289 OPT_COPY_UNSAFE_LINKS, OPT_SAFE_LINKS, OPT_COMPARE_DEST,
290 OPT_LOG_FORMAT, OPT_PASSWORD_FILE, OPT_SIZE_ONLY, OPT_ADDRESS,
291 OPT_DELETE_AFTER, OPT_EXISTING, OPT_MAX_DELETE, OPT_BACKUP_DIR,
292 OPT_IGNORE_ERRORS, OPT_BWLIMIT, OPT_BLOCKING_IO,
293 OPT_NO_BLOCKING_IO, OPT_WHOLE_FILE, OPT_NO_WHOLE_FILE,
294 OPT_MODIFY_WINDOW, OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_IGNORE_EXISTING};
296 static struct poptOption long_options[] = {
297 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
298 {"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0},
299 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
300 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
301 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
302 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times , 0, 0, 0 },
303 {"size-only", 0, POPT_ARG_NONE, &size_only , 0, 0, 0 },
304 {"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
305 {"one-file-system", 'x', POPT_ARG_NONE, &one_file_system , 0, 0, 0 },
306 {"delete", 0, POPT_ARG_NONE, &delete_mode , 0, 0, 0 },
307 {"existing", 0, POPT_ARG_NONE, &only_existing , 0, 0, 0 },
308 {"ignore-existing", 0, POPT_ARG_NONE, &opt_ignore_existing , 0, 0, 0 },
309 {"delete-after", 0, POPT_ARG_NONE, 0, OPT_DELETE_AFTER, 0, 0 },
310 {"delete-excluded", 0, POPT_ARG_NONE, 0, OPT_DELETE_EXCLUDED, 0, 0 },
311 {"force", 0, POPT_ARG_NONE, &force_delete , 0, 0, 0 },
312 {"numeric-ids", 0, POPT_ARG_NONE, &numeric_ids , 0, 0, 0 },
313 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
314 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
315 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
316 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
317 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks , 0, 0, 0 },
318 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
319 {"backup", 'b', POPT_ARG_NONE, &make_backups , 0, 0, 0 },
320 {"dry-run", 'n', POPT_ARG_NONE, &dry_run , 0, 0, 0 },
321 {"sparse", 'S', POPT_ARG_NONE, &sparse_files , 0, 0, 0 },
322 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude , 0, 0, 0 },
323 {"update", 'u', POPT_ARG_NONE, &update_only , 0, 0, 0 },
324 {"links", 'l', POPT_ARG_NONE, &preserve_links , 0, 0, 0 },
325 {"copy-links", 'L', POPT_ARG_NONE, ©_links , 0, 0, 0 },
326 {"whole-file", 'W', POPT_ARG_NONE, 0, OPT_WHOLE_FILE, 0, 0 },
327 {"no-whole-file", 0, POPT_ARG_NONE, 0, OPT_NO_WHOLE_FILE, 0, 0 },
328 {"copy-unsafe-links", 0, POPT_ARG_NONE, ©_unsafe_links , 0, 0, 0 },
329 {"perms", 'p', POPT_ARG_NONE, &preserve_perms , 0, 0, 0 },
330 {"owner", 'o', POPT_ARG_NONE, &preserve_uid , 0, 0, 0 },
331 {"group", 'g', POPT_ARG_NONE, &preserve_gid , 0, 0, 0 },
332 {"devices", 'D', POPT_ARG_NONE, &preserve_devices , 0, 0, 0 },
333 {"times", 't', POPT_ARG_NONE, &preserve_times , 0, 0, 0 },
334 {"checksum", 'c', POPT_ARG_NONE, &always_checksum , 0, 0, 0 },
335 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
336 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
337 {"archive", 'a', POPT_ARG_NONE, 0, 'a', 0, 0 },
338 {"server", 0, POPT_ARG_NONE, &am_server , 0, 0, 0 },
339 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
340 {"recursive", 'r', POPT_ARG_NONE, &recurse , 0, 0, 0 },
341 {"relative", 'R', POPT_ARG_NONE, &relative_paths , 0, 0, 0 },
342 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd , 0, 0, 0 },
343 {"block-size", 'B', POPT_ARG_INT, &block_size , 0, 0, 0 },
344 {"max-delete", 0, POPT_ARG_INT, &max_delete , 0, 0, 0 },
345 {"timeout", 0, POPT_ARG_INT, &io_timeout , 0, 0, 0 },
346 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir , 0, 0, 0 },
347 {"compare-dest", 0, POPT_ARG_STRING, &compare_dest , 0, 0, 0 },
348 /* TODO: Should this take an optional int giving the compression level? */
349 {"compress", 'z', POPT_ARG_NONE, &do_compression , 0, 0, 0 },
350 {"daemon", 0, POPT_ARG_NONE, &am_daemon , 0, 0, 0 },
351 {"no-detach", 0, POPT_ARG_NONE, &no_detach , 0, 0, 0 },
352 {"stats", 0, POPT_ARG_NONE, &do_stats , 0, 0, 0 },
353 {"progress", 0, POPT_ARG_NONE, &do_progress , 0, 0, 0 },
354 {"partial", 0, POPT_ARG_NONE, &keep_partial , 0, 0, 0 },
355 {"ignore-errors", 0, POPT_ARG_NONE, &ignore_errors , 0, 0, 0 },
356 {"blocking-io", 0, POPT_ARG_NONE, &blocking_io , 0, 0, 0 },
357 {"no-blocking-io", 0, POPT_ARG_NONE, 0, OPT_NO_BLOCKING_IO, 0, 0 },
358 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
359 {"config", 0, POPT_ARG_STRING, &config_file , 0, 0, 0 },
360 {"port", 0, POPT_ARG_INT, &rsync_port , 0, 0, 0 },
361 {"log-format", 0, POPT_ARG_STRING, &log_format , 0, 0, 0 },
362 {"bwlimit", 0, POPT_ARG_INT, &bwlimit , 0, 0, 0 },
363 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
364 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir , 0, 0, 0 },
365 {"hard-links", 'H', POPT_ARG_NONE, &preserve_hard_links , 0, 0, 0 },
366 {"read-batch", 0, POPT_ARG_STRING, &batch_prefix, OPT_READ_BATCH, 0, 0 },
367 {"write-batch", 0, POPT_ARG_STRING, &batch_prefix, OPT_WRITE_BATCH, 0, 0 },
369 {0, '4', POPT_ARG_VAL, &default_af_hint, AF_INET , 0, 0 },
370 {0, '6', POPT_ARG_VAL, &default_af_hint, AF_INET6 , 0, 0 },
376 static char err_buf[100];
380 * Store the option error message, if any, so that we can log the
381 * connection attempt (which requires parsing the options), and then
382 * show the error later on.
384 void option_error(void)
387 rprintf(FLOG, "%s", err_buf);
388 rprintf(FERROR, "%s: %s", RSYNC_NAME, err_buf);
390 rprintf (FERROR, "Error parsing options: "
391 "option may be supported on client but not on server?\n");
392 rprintf (FERROR, RSYNC_NAME ": Error parsing options: "
393 "option may be supported on client but not on server?\n");
399 * Check to see if we should refuse this option
401 static int check_refuse_options(char *ref, int opt)
407 for (i=0; long_options[i].longName; i++) {
408 if (long_options[i].val == opt) break;
411 if (!long_options[i].longName) return 0;
413 name = long_options[i].longName;
416 while ((p = strstr(ref,name))) {
417 if ((p==ref || p[-1]==' ') &&
418 (p[len] == ' ' || p[len] == 0)) {
419 snprintf(err_buf,sizeof(err_buf),
420 "The '%s' option is not supported by this server\n", name);
429 static int count_args(char const **argv)
433 while (argv[i] != NULL)
441 * Process command line arguments. Called on both local and remote.
443 * @retval 1 if all options are OK; with globals set to appropriate
446 * @retval 0 on error, with err_buf containing an explanation
448 int parse_arguments(int *argc, const char ***argv, int frommain)
451 char *ref = lp_refuse_options(module_id);
454 /* TODO: Call poptReadDefaultConfig; handle errors. */
456 /* The context leaks in case of an error, but if there's a
457 * problem we always exit anyhow. */
458 pc = poptGetContext(RSYNC_NAME, *argc, *argv, long_options, 0);
460 while ((opt = poptGetNextOpt(pc)) != -1) {
462 if (check_refuse_options(ref, opt)) return 0;
465 /* most options are handled automatically by popt;
466 * only special cases are returned and listed here. */
470 print_rsync_version(FINFO);
473 case OPT_MODIFY_WINDOW:
474 /* The value has already been set by popt, but
475 * we need to remember that we're using a
476 * non-default setting. */
477 modify_window_set = 1;
480 case OPT_DELETE_AFTER:
485 case OPT_DELETE_EXCLUDED:
491 add_exclude(poptGetOptArg(pc), 0);
495 add_exclude(poptGetOptArg(pc), 1);
498 case OPT_EXCLUDE_FROM:
499 add_exclude_file(poptGetOptArg(pc), 1, 0);
502 case OPT_INCLUDE_FROM:
503 add_exclude_file(poptGetOptArg(pc), 1, 1);
511 case OPT_NO_WHOLE_FILE:
516 case OPT_NO_BLOCKING_IO:
525 #if SUPPORT_HARD_LINKS
526 preserve_hard_links=1;
528 /* FIXME: Don't say "server" if this is
529 * happening on the client. */
530 /* FIXME: Why do we have the duplicated
531 * rprintf? Everybody who gets this message
532 * ought to send it to the client and also to
534 snprintf(err_buf,sizeof(err_buf),
535 "hard links are not supported on this %s\n",
536 am_server ? "server" : "client");
537 rprintf(FERROR,"ERROR: hard links not supported on this platform\n");
539 #endif /* SUPPORT_HARD_LINKS */
547 if (frommain) quiet++;
565 exit_cleanup(RERR_SYNTAX);
575 case OPT_WRITE_BATCH:
576 /* popt stores the filename in batch_prefix for us */
581 /* popt stores the filename in batch_prefix for us */
586 /* FIXME: If --daemon is specified, then errors for later
587 * parameters seem to disappear. */
588 snprintf(err_buf, sizeof(err_buf),
590 am_server ? "on remote machine: " : "",
591 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
597 if (write_batch && read_batch) {
598 snprintf(err_buf,sizeof(err_buf),
599 "write-batch and read-batch can not be used together\n");
600 rprintf(FERROR,"ERROR: write-batch and read-batch"
601 " can not be used together\n");
605 if (do_compression && (write_batch || read_batch)) {
606 snprintf(err_buf,sizeof(err_buf),
607 "compress can not be used with write-batch or read-batch\n");
608 rprintf(FERROR,"ERROR: compress can not be used with"
609 " write-batch or read-batch\n");
613 *argv = poptGetArgs(pc);
615 *argc = count_args(*argv);
624 * Construct a filtered list of options to pass through from the
625 * client to the server.
627 * This involves setting options that will tell the server how to
628 * behave, and also filtering out options that are processed only
631 void server_options(char **args,int *argc)
634 static char argstr[50];
635 static char bsize[30];
636 static char iotime[30];
637 static char mdelete[30];
638 static char mwindow[30];
640 /* Leave room for ``--(write|read)-batch='' */
641 static char fext[MAXPATHLEN + 15];
645 if (blocking_io == -1)
648 args[ac++] = "--server";
651 args[ac++] = "--sender";
655 for (i=0;i<verbose;i++)
658 /* the -q option is intentionally left out */
670 assert(whole_file == 0 || whole_file == 1);
673 /* We don't need to send --no-whole-file, because it's the
674 * default for remote transfers, and in any case old versions
675 * of rsync will not understand it. */
677 if (preserve_hard_links)
683 if (preserve_devices)
706 /* this is a complete hack - blame Rusty
708 this is a hack to make the list_only (remote file list)
710 if (list_only && !recurse)
715 if (x != 1) args[ac++] = argstr;
717 if (block_size != BLOCK_SIZE) {
718 snprintf(bsize,sizeof(bsize),"-B%d",block_size);
722 if (max_delete && am_sender) {
723 snprintf(mdelete,sizeof(mdelete),"--max-delete=%d",max_delete);
724 args[ac++] = mdelete;
727 if (batch_prefix != NULL) {
730 fmt = "--write-batch=%s";
733 fmt = "--read-batch=%s";
734 snprintf(fext,sizeof(fext),fmt,batch_prefix);
739 snprintf(iotime,sizeof(iotime),"--timeout=%d",io_timeout);
744 snprintf(bw,sizeof(bw),"--bwlimit=%d",bwlimit);
748 if (strcmp(backup_suffix, BACKUP_SUFFIX)) {
749 args[ac++] = "--suffix";
750 args[ac++] = backup_suffix;
753 if (delete_mode && !delete_excluded)
754 args[ac++] = "--delete";
757 args[ac++] = "--delete-excluded";
760 args[ac++] = "--size-only";
762 if (modify_window_set) {
763 snprintf(mwindow,sizeof(mwindow),"--modify-window=%d",
765 args[ac++] = mwindow;
769 args[ac++] = "--partial";
772 args[ac++] = "--force";
775 args[ac++] = "--delete-after";
778 args[ac++] = "--ignore-errors";
780 if (copy_unsafe_links)
781 args[ac++] = "--copy-unsafe-links";
784 args[ac++] = "--safe-links";
787 args[ac++] = "--numeric-ids";
789 if (only_existing && am_sender)
790 args[ac++] = "--existing";
792 if (opt_ignore_existing && am_sender)
793 args[ac++] = "--ignore-existing";
796 args[ac++] = "--temp-dir";
800 if (backup_dir && am_sender) {
801 /* only the receiver needs this option, if we are the sender
802 * then we need to send it to the receiver.
804 args[ac++] = "--backup-dir";
805 args[ac++] = backup_dir;
808 if (compare_dest && am_sender) {
809 /* the server only needs this option if it is not the sender,
810 * and it may be an older version that doesn't know this
811 * option, so don't send it if client is the sender.
813 args[ac++] = "--compare-dest";
814 args[ac++] = compare_dest;