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;
70 int daemon_over_rsh = 0;
75 int copy_unsafe_links=0;
76 int block_size=BLOCK_SIZE;
81 int opt_ignore_existing=0;
92 /** Network address family. **/
94 int default_af_hint = 0; /* Any protocol */
96 int default_af_hint = AF_INET; /* Must use IPv4 */
99 /** Do not go into the background when run as --daemon. Good
100 * for debugging and required for running as a service on W32,
101 * or under Unix process-monitors. **/
106 int suffix_specified = 0;
108 char *backup_suffix = BACKUP_SUFFIX;
110 char *compare_dest = NULL;
111 char *config_file = RSYNCD_CONF;
112 char *shell_cmd = NULL;
113 char *log_format = NULL;
114 char *password_file = NULL;
115 char *rsync_path = RSYNC_PATH;
116 char *backup_dir = NULL;
117 int rsync_port = RSYNC_PORT;
121 int always_checksum = 0;
124 char *batch_prefix = NULL;
126 static int modify_window_set;
128 /** Local address to bind. As a character string because it's
129 * interpreted by the IPv6 layer: should be a numeric IP4 or ip6
130 * address, or a hostname. **/
134 static void print_rsync_version(enum logcode f)
136 char const *got_socketpair = "no ";
137 char const *hardlinks = "no ";
138 char const *links = "no ";
139 char const *ipv6 = "no ";
140 STRUCT_STAT *dumstat;
142 #ifdef HAVE_SOCKETPAIR
146 #if SUPPORT_HARD_LINKS
158 rprintf(f, "%s version %s protocol version %d\n",
159 RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION);
161 "Copyright (C) 1996-2002 by Andrew Tridgell and others\n");
162 rprintf(f, "<http://rsync.samba.org/>\n");
163 rprintf(f, "Capabilities: %d-bit files, %ssocketpairs, "
164 "%shard links, %ssymlinks, batchfiles, \n",
165 (int) (sizeof(OFF_T) * 8),
166 got_socketpair, hardlinks, links);
168 /* Note that this field may not have type ino_t. It depends
169 * on the complicated interaction between largefile feature
171 rprintf(f, " %sIPv6, %d-bit system inums, %d-bit internal inums\n",
173 (int) (sizeof(dumstat->st_ino) * 8),
174 (int) (sizeof(INO64_T) * 8));
175 #ifdef MAINTAINER_MODE
176 rprintf(f, " panic action: \"%s\"\n",
181 rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
186 "rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n"
187 "are welcome to redistribute it under certain conditions. See the GNU\n"
188 "General Public Licence for details.\n"
193 void usage(enum logcode F)
195 print_rsync_version(F);
197 rprintf(F,"\nrsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");
199 rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
200 rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC DEST\n");
201 rprintf(F," or rsync [OPTION]... SRC [SRC]... DEST\n");
202 rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
203 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
204 rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
205 rprintf(F," or rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST\n");
206 rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n");
207 rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n");
208 rprintf(F," sources separated by space as long as they have same top-level\n");
209 rprintf(F,"\nOptions\n");
210 rprintf(F," -v, --verbose increase verbosity\n");
211 rprintf(F," -q, --quiet decrease verbosity\n");
212 rprintf(F," -c, --checksum always checksum\n");
213 rprintf(F," -a, --archive archive mode\n");
214 rprintf(F," -r, --recursive recurse into directories\n");
215 rprintf(F," -R, --relative use relative path names\n");
216 rprintf(F," -b, --backup make backups (default %s suffix)\n",BACKUP_SUFFIX);
217 rprintf(F," --backup-dir make backups into this directory\n");
218 rprintf(F," --suffix=SUFFIX override backup suffix\n");
219 rprintf(F," -u, --update update only (don't overwrite newer files)\n");
220 rprintf(F," -l, --links copy symlinks as symlinks\n");
221 rprintf(F," -L, --copy-links copy the referent of symlinks\n");
222 rprintf(F," --copy-unsafe-links copy links outside the source tree\n");
223 rprintf(F," --safe-links ignore links outside the destination tree\n");
224 rprintf(F," -H, --hard-links preserve hard links\n");
225 rprintf(F," -p, --perms preserve permissions\n");
226 rprintf(F," -o, --owner preserve owner (root only)\n");
227 rprintf(F," -g, --group preserve group\n");
228 rprintf(F," -D, --devices preserve devices (root only)\n");
229 rprintf(F," -t, --times preserve times\n");
230 rprintf(F," -S, --sparse handle sparse files efficiently\n");
231 rprintf(F," -n, --dry-run show what would have been transferred\n");
232 rprintf(F," -W, --whole-file copy whole files, no incremental checks\n");
233 rprintf(F," --no-whole-file turn off --whole-file\n");
234 rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
235 rprintf(F," -B, --block-size=SIZE checksum blocking size (default %d)\n",BLOCK_SIZE);
236 rprintf(F," -e, --rsh=COMMAND specify the remote shell\n");
237 rprintf(F," --rsync-path=PATH specify path to rsync on the remote machine\n");
238 rprintf(F," -C, --cvs-exclude auto ignore files in the same way CVS does\n");
239 rprintf(F," --existing only update files that already exist\n");
240 rprintf(F," --ignore-existing ignore files that already exist on the receiving side\n");
241 rprintf(F," --delete delete files that don't exist on the sending side\n");
242 rprintf(F," --delete-excluded also delete excluded files on the receiving side\n");
243 rprintf(F," --delete-after delete after transferring, not before\n");
244 rprintf(F," --ignore-errors delete even if there are IO errors\n");
245 rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
246 rprintf(F," --partial keep partially transferred files\n");
247 rprintf(F," --force force deletion of directories even if not empty\n");
248 rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
249 rprintf(F," --timeout=TIME set IO timeout in seconds\n");
250 rprintf(F," -I, --ignore-times don't exclude files that match length and time\n");
251 rprintf(F," --size-only only use file size when determining if a file should be transferred\n");
252 rprintf(F," --modify-window=NUM Timestamp window (seconds) for file match (default=%d)\n",modify_window);
253 rprintf(F," -T --temp-dir=DIR create temporary files in directory DIR\n");
254 rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
255 rprintf(F," -P equivalent to --partial --progress\n");
256 rprintf(F," -z, --compress compress file data\n");
257 rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
258 rprintf(F," --exclude-from=FILE exclude patterns listed in FILE\n");
259 rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
260 rprintf(F," --include-from=FILE don't exclude patterns listed in FILE\n");
261 rprintf(F," --version print version number\n");
262 rprintf(F," --daemon run as a rsync daemon\n");
263 rprintf(F," --no-detach do not detach from the parent\n");
264 rprintf(F," --address=ADDRESS bind to the specified address\n");
265 rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
266 rprintf(F," --port=PORT specify alternate rsyncd port number\n");
267 rprintf(F," --blocking-io use blocking IO for the remote shell\n");
268 rprintf(F," --no-blocking-io turn off --blocking-io\n");
269 rprintf(F," --stats give some file transfer stats\n");
270 rprintf(F," --progress show progress during transfer\n");
271 rprintf(F," --log-format=FORMAT log file transfers using specified format\n");
272 rprintf(F," --password-file=FILE get password from FILE\n");
273 rprintf(F," --bwlimit=KBPS limit I/O bandwidth, KBytes per second\n");
274 rprintf(F," --write-batch=PREFIX write batch fileset starting with PREFIX\n");
275 rprintf(F," --read-batch=PREFIX read batch fileset starting with PREFIX\n");
276 rprintf(F," -h, --help show this help screen\n");
278 rprintf(F," -4 prefer IPv4\n");
279 rprintf(F," -6 prefer IPv6\n");
284 rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
285 rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
288 enum {OPT_VERSION = 1000, OPT_SUFFIX, OPT_SENDER, OPT_SERVER, OPT_EXCLUDE,
289 OPT_EXCLUDE_FROM, OPT_DELETE, OPT_DELETE_EXCLUDED, OPT_NUMERIC_IDS,
290 OPT_RSYNC_PATH, OPT_FORCE, OPT_TIMEOUT, OPT_DAEMON, OPT_CONFIG, OPT_PORT,
291 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_STATS, OPT_PARTIAL, OPT_PROGRESS,
292 OPT_COPY_UNSAFE_LINKS, OPT_SAFE_LINKS, OPT_COMPARE_DEST,
293 OPT_LOG_FORMAT, OPT_PASSWORD_FILE, OPT_SIZE_ONLY, OPT_ADDRESS,
294 OPT_DELETE_AFTER, OPT_EXISTING, OPT_MAX_DELETE, OPT_BACKUP_DIR,
295 OPT_IGNORE_ERRORS, OPT_BWLIMIT, OPT_BLOCKING_IO,
296 OPT_NO_BLOCKING_IO, OPT_WHOLE_FILE, OPT_NO_WHOLE_FILE,
297 OPT_MODIFY_WINDOW, OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_IGNORE_EXISTING};
299 static struct poptOption long_options[] = {
300 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
301 {"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0},
302 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, OPT_SUFFIX, 0, 0 },
303 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
304 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
305 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times , 0, 0, 0 },
306 {"size-only", 0, POPT_ARG_NONE, &size_only , 0, 0, 0 },
307 {"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
308 {"one-file-system", 'x', POPT_ARG_NONE, &one_file_system , 0, 0, 0 },
309 {"delete", 0, POPT_ARG_NONE, &delete_mode , 0, 0, 0 },
310 {"existing", 0, POPT_ARG_NONE, &only_existing , 0, 0, 0 },
311 {"ignore-existing", 0, POPT_ARG_NONE, &opt_ignore_existing , 0, 0, 0 },
312 {"delete-after", 0, POPT_ARG_NONE, 0, OPT_DELETE_AFTER, 0, 0 },
313 {"delete-excluded", 0, POPT_ARG_NONE, 0, OPT_DELETE_EXCLUDED, 0, 0 },
314 {"force", 0, POPT_ARG_NONE, &force_delete , 0, 0, 0 },
315 {"numeric-ids", 0, POPT_ARG_NONE, &numeric_ids , 0, 0, 0 },
316 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
317 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
318 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
319 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
320 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks , 0, 0, 0 },
321 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
322 {"backup", 'b', POPT_ARG_NONE, &make_backups , 0, 0, 0 },
323 {"dry-run", 'n', POPT_ARG_NONE, &dry_run , 0, 0, 0 },
324 {"sparse", 'S', POPT_ARG_NONE, &sparse_files , 0, 0, 0 },
325 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude , 0, 0, 0 },
326 {"update", 'u', POPT_ARG_NONE, &update_only , 0, 0, 0 },
327 {"links", 'l', POPT_ARG_NONE, &preserve_links , 0, 0, 0 },
328 {"copy-links", 'L', POPT_ARG_NONE, ©_links , 0, 0, 0 },
329 {"whole-file", 'W', POPT_ARG_NONE, 0, OPT_WHOLE_FILE, 0, 0 },
330 {"no-whole-file", 0, POPT_ARG_NONE, 0, OPT_NO_WHOLE_FILE, 0, 0 },
331 {"copy-unsafe-links", 0, POPT_ARG_NONE, ©_unsafe_links , 0, 0, 0 },
332 {"perms", 'p', POPT_ARG_NONE, &preserve_perms , 0, 0, 0 },
333 {"owner", 'o', POPT_ARG_NONE, &preserve_uid , 0, 0, 0 },
334 {"group", 'g', POPT_ARG_NONE, &preserve_gid , 0, 0, 0 },
335 {"devices", 'D', POPT_ARG_NONE, &preserve_devices , 0, 0, 0 },
336 {"times", 't', POPT_ARG_NONE, &preserve_times , 0, 0, 0 },
337 {"checksum", 'c', POPT_ARG_NONE, &always_checksum , 0, 0, 0 },
338 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
339 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
340 {"archive", 'a', POPT_ARG_NONE, 0, 'a', 0, 0 },
341 {"server", 0, POPT_ARG_NONE, &am_server , 0, 0, 0 },
342 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
343 {"recursive", 'r', POPT_ARG_NONE, &recurse , 0, 0, 0 },
344 {"relative", 'R', POPT_ARG_NONE, &relative_paths , 0, 0, 0 },
345 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd , 0, 0, 0 },
346 {"block-size", 'B', POPT_ARG_INT, &block_size , 0, 0, 0 },
347 {"max-delete", 0, POPT_ARG_INT, &max_delete , 0, 0, 0 },
348 {"timeout", 0, POPT_ARG_INT, &io_timeout , 0, 0, 0 },
349 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir , 0, 0, 0 },
350 {"compare-dest", 0, POPT_ARG_STRING, &compare_dest , 0, 0, 0 },
351 /* TODO: Should this take an optional int giving the compression level? */
352 {"compress", 'z', POPT_ARG_NONE, &do_compression , 0, 0, 0 },
353 {"daemon", 0, POPT_ARG_NONE, &am_daemon , 0, 0, 0 },
354 {"no-detach", 0, POPT_ARG_NONE, &no_detach , 0, 0, 0 },
355 {"stats", 0, POPT_ARG_NONE, &do_stats , 0, 0, 0 },
356 {"progress", 0, POPT_ARG_NONE, &do_progress , 0, 0, 0 },
357 {"partial", 0, POPT_ARG_NONE, &keep_partial , 0, 0, 0 },
358 {"ignore-errors", 0, POPT_ARG_NONE, &ignore_errors , 0, 0, 0 },
359 {"blocking-io", 0, POPT_ARG_NONE, &blocking_io , 0, 0, 0 },
360 {"no-blocking-io", 0, POPT_ARG_NONE, 0, OPT_NO_BLOCKING_IO, 0, 0 },
361 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
362 {"config", 0, POPT_ARG_STRING, &config_file , 0, 0, 0 },
363 {"port", 0, POPT_ARG_INT, &rsync_port , 0, 0, 0 },
364 {"log-format", 0, POPT_ARG_STRING, &log_format , 0, 0, 0 },
365 {"bwlimit", 0, POPT_ARG_INT, &bwlimit , 0, 0, 0 },
366 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
367 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir , 0, 0, 0 },
368 {"hard-links", 'H', POPT_ARG_NONE, &preserve_hard_links , 0, 0, 0 },
369 {"read-batch", 0, POPT_ARG_STRING, &batch_prefix, OPT_READ_BATCH, 0, 0 },
370 {"write-batch", 0, POPT_ARG_STRING, &batch_prefix, OPT_WRITE_BATCH, 0, 0 },
372 {0, '4', POPT_ARG_VAL, &default_af_hint, AF_INET , 0, 0 },
373 {0, '6', POPT_ARG_VAL, &default_af_hint, AF_INET6 , 0, 0 },
379 static char err_buf[100];
383 * Store the option error message, if any, so that we can log the
384 * connection attempt (which requires parsing the options), and then
385 * show the error later on.
387 void option_error(void)
390 rprintf(FLOG, "%s", err_buf);
391 rprintf(FERROR, "%s: %s", RSYNC_NAME, err_buf);
393 rprintf (FERROR, "Error parsing options: "
394 "option may be supported on client but not on server?\n");
395 rprintf (FERROR, RSYNC_NAME ": Error parsing options: "
396 "option may be supported on client but not on server?\n");
402 * Check to see if we should refuse this option
404 static int check_refuse_options(char *ref, int opt)
410 for (i=0; long_options[i].longName; i++) {
411 if (long_options[i].val == opt) break;
414 if (!long_options[i].longName) return 0;
416 name = long_options[i].longName;
419 while ((p = strstr(ref,name))) {
420 if ((p==ref || p[-1]==' ') &&
421 (p[len] == ' ' || p[len] == 0)) {
422 snprintf(err_buf,sizeof(err_buf),
423 "The '%s' option is not supported by this server\n", name);
432 static int count_args(char const **argv)
436 while (argv[i] != NULL)
444 * Process command line arguments. Called on both local and remote.
446 * @retval 1 if all options are OK; with globals set to appropriate
449 * @retval 0 on error, with err_buf containing an explanation
451 int parse_arguments(int *argc, const char ***argv, int frommain)
454 char *ref = lp_refuse_options(module_id);
457 /* TODO: Call poptReadDefaultConfig; handle errors. */
459 /* The context leaks in case of an error, but if there's a
460 * problem we always exit anyhow. */
461 pc = poptGetContext(RSYNC_NAME, *argc, *argv, long_options, 0);
463 while ((opt = poptGetNextOpt(pc)) != -1) {
465 if (check_refuse_options(ref, opt)) return 0;
468 /* most options are handled automatically by popt;
469 * only special cases are returned and listed here. */
473 print_rsync_version(FINFO);
477 /* The value has already been set by popt, but
478 * we need to remember that a suffix was specified
479 * in case a backup-directory is used. */
480 suffix_specified = 1;
483 case OPT_MODIFY_WINDOW:
484 /* The value has already been set by popt, but
485 * we need to remember that we're using a
486 * non-default setting. */
487 modify_window_set = 1;
490 case OPT_DELETE_AFTER:
495 case OPT_DELETE_EXCLUDED:
501 add_exclude(poptGetOptArg(pc), 0);
505 add_exclude(poptGetOptArg(pc), 1);
508 case OPT_EXCLUDE_FROM:
509 add_exclude_file(poptGetOptArg(pc), 1, 0);
512 case OPT_INCLUDE_FROM:
513 add_exclude_file(poptGetOptArg(pc), 1, 1);
521 case OPT_NO_WHOLE_FILE:
526 case OPT_NO_BLOCKING_IO:
535 #if SUPPORT_HARD_LINKS
536 preserve_hard_links=1;
538 /* FIXME: Don't say "server" if this is
539 * happening on the client. */
540 /* FIXME: Why do we have the duplicated
541 * rprintf? Everybody who gets this message
542 * ought to send it to the client and also to
544 snprintf(err_buf,sizeof(err_buf),
545 "hard links are not supported on this %s\n",
546 am_server ? "server" : "client");
547 rprintf(FERROR,"ERROR: hard links not supported on this platform\n");
549 #endif /* SUPPORT_HARD_LINKS */
557 if (frommain) quiet++;
575 exit_cleanup(RERR_SYNTAX);
585 case OPT_WRITE_BATCH:
586 /* popt stores the filename in batch_prefix for us */
591 /* popt stores the filename in batch_prefix for us */
596 /* FIXME: If --daemon is specified, then errors for later
597 * parameters seem to disappear. */
598 snprintf(err_buf, sizeof(err_buf),
600 am_server ? "on remote machine: " : "",
601 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
607 if (write_batch && read_batch) {
608 snprintf(err_buf,sizeof(err_buf),
609 "write-batch and read-batch can not be used together\n");
610 rprintf(FERROR,"ERROR: write-batch and read-batch"
611 " can not be used together\n");
615 if (do_compression && (write_batch || read_batch)) {
616 snprintf(err_buf,sizeof(err_buf),
617 "compress can not be used with write-batch or read-batch\n");
618 rprintf(FERROR,"ERROR: compress can not be used with"
619 " write-batch or read-batch\n");
623 *argv = poptGetArgs(pc);
625 *argc = count_args(*argv);
634 * Construct a filtered list of options to pass through from the
635 * client to the server.
637 * This involves setting options that will tell the server how to
638 * behave, and also filtering out options that are processed only
641 void server_options(char **args,int *argc)
644 static char argstr[50];
645 static char bsize[30];
646 static char iotime[30];
647 static char mdelete[30];
648 static char mwindow[30];
650 /* Leave room for ``--(write|read)-batch='' */
651 static char fext[MAXPATHLEN + 15];
655 if (blocking_io == -1)
658 args[ac++] = "--server";
660 if (daemon_over_rsh) {
661 args[ac++] = "--daemon";
663 /* if we're passing --daemon, we're done */
668 args[ac++] = "--sender";
672 for (i=0;i<verbose;i++)
675 /* the -q option is intentionally left out */
687 assert(whole_file == 0 || whole_file == 1);
690 /* We don't need to send --no-whole-file, because it's the
691 * default for remote transfers, and in any case old versions
692 * of rsync will not understand it. */
694 if (preserve_hard_links)
700 if (preserve_devices)
723 /* this is a complete hack - blame Rusty
725 this is a hack to make the list_only (remote file list)
727 if (list_only && !recurse)
732 if (x != 1) args[ac++] = argstr;
734 if (block_size != BLOCK_SIZE) {
735 snprintf(bsize,sizeof(bsize),"-B%d",block_size);
739 if (max_delete && am_sender) {
740 snprintf(mdelete,sizeof(mdelete),"--max-delete=%d",max_delete);
741 args[ac++] = mdelete;
744 if (batch_prefix != NULL) {
747 fmt = "--write-batch=%s";
750 fmt = "--read-batch=%s";
751 snprintf(fext,sizeof(fext),fmt,batch_prefix);
756 snprintf(iotime,sizeof(iotime),"--timeout=%d",io_timeout);
761 snprintf(bw,sizeof(bw),"--bwlimit=%d",bwlimit);
765 if (strcmp(backup_suffix, BACKUP_SUFFIX)) {
766 args[ac++] = "--suffix";
767 args[ac++] = backup_suffix;
770 if (delete_mode && !delete_excluded)
771 args[ac++] = "--delete";
774 args[ac++] = "--delete-excluded";
777 args[ac++] = "--size-only";
779 if (modify_window_set) {
780 snprintf(mwindow,sizeof(mwindow),"--modify-window=%d",
782 args[ac++] = mwindow;
786 args[ac++] = "--partial";
789 args[ac++] = "--force";
792 args[ac++] = "--delete-after";
795 args[ac++] = "--ignore-errors";
797 if (copy_unsafe_links)
798 args[ac++] = "--copy-unsafe-links";
801 args[ac++] = "--safe-links";
804 args[ac++] = "--numeric-ids";
806 if (only_existing && am_sender)
807 args[ac++] = "--existing";
809 if (opt_ignore_existing && am_sender)
810 args[ac++] = "--ignore-existing";
813 args[ac++] = "--temp-dir";
817 if (backup_dir && am_sender) {
818 /* only the receiver needs this option, if we are the sender
819 * then we need to send it to the receiver.
821 args[ac++] = "--backup-dir";
822 args[ac++] = backup_dir;
825 if (compare_dest && am_sender) {
826 /* the server only needs this option if it is not the sender,
827 * and it may be an older version that doesn't know this
828 * option, so don't send it if client is the sender.
830 args[ac++] = "--compare-dest";
831 args[ac++] = compare_dest;