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.
24 extern int sanitize_paths;
25 extern char curr_dir[MAXPATHLEN];
26 extern struct exclude_list_struct exclude_list;
31 * If 1, send the whole file as literal data rather than trying to
32 * create an incremental diff.
34 * If -1, then look at whether we're local or remote and go by that.
36 * @sa disable_deltas_p()
41 int keep_dirlinks = 0;
43 int preserve_links = 0;
44 int preserve_hard_links = 0;
45 int preserve_perms = 0;
46 int preserve_devices = 0;
49 int preserve_times = 0;
56 int delete_excluded = 0;
57 int one_file_system = 0;
58 int protocol_version = PROTOCOL_VERSION;
60 int do_compression = 0;
63 int relative_paths = -1;
73 char *files_from = NULL;
74 int filesfrom_fd = -1;
75 char *remote_filesfrom_file = NULL;
79 int daemon_over_rsh = 0;
83 int safe_symlinks = 0;
84 int copy_unsafe_links = 0;
87 size_t bwlimit_writemax = 0;
89 int only_existing = 0;
90 int opt_ignore_existing = 0;
92 int ignore_errors = 0;
93 int modify_window = 0;
95 int checksum_seed = 0;
96 unsigned int block_size = 0;
99 /** Network address family. **/
101 int default_af_hint = 0; /* Any protocol */
103 int default_af_hint = AF_INET; /* Must use IPv4 */
106 /** Do not go into the background when run as --daemon. Good
107 * for debugging and required for running as a service on W32,
108 * or under Unix process-monitors. **/
113 int backup_dir_len = 0;
114 int backup_suffix_len;
115 unsigned int backup_dir_remainder;
117 char *backup_suffix = NULL;
119 char *compare_dest = NULL;
120 char *config_file = NULL;
121 char *shell_cmd = NULL;
122 char *log_format = NULL;
123 char *password_file = NULL;
124 char *rsync_path = RSYNC_PATH;
125 char *backup_dir = NULL;
126 char backup_dir_buf[MAXPATHLEN];
127 int rsync_port = RSYNC_PORT;
132 int always_checksum = 0;
135 #define FIXED_CHECKSUM_SEED 32761
136 #define MAX_BATCH_PREFIX_LEN 256 /* Must be less than MAXPATHLEN-13 */
137 char *batch_prefix = NULL;
139 static int daemon_opt; /* sets am_daemon after option error-reporting */
140 static int modify_window_set;
142 /** Local address to bind. As a character string because it's
143 * interpreted by the IPv6 layer: should be a numeric IP4 or ip6
144 * address, or a hostname. **/
148 static void print_rsync_version(enum logcode f)
150 char const *got_socketpair = "no ";
151 char const *hardlinks = "no ";
152 char const *links = "no ";
153 char const *ipv6 = "no ";
154 STRUCT_STAT *dumstat;
156 #ifdef HAVE_SOCKETPAIR
160 #if SUPPORT_HARD_LINKS
172 rprintf(f, "%s version %s protocol version %d\n",
173 RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION);
175 "Copyright (C) 1996-2004 by Andrew Tridgell and others\n");
176 rprintf(f, "<http://rsync.samba.org/>\n");
177 rprintf(f, "Capabilities: %d-bit files, %ssocketpairs, "
178 "%shard links, %ssymlinks, batchfiles, \n",
179 (int) (sizeof (OFF_T) * 8),
180 got_socketpair, hardlinks, links);
182 /* Note that this field may not have type ino_t. It depends
183 * on the complicated interaction between largefile feature
185 rprintf(f, " %sIPv6, %d-bit system inums, %d-bit internal inums\n",
187 (int) (sizeof dumstat->st_ino * 8),
188 (int) (sizeof (uint64) * 8));
189 #ifdef MAINTAINER_MODE
190 rprintf(f, " panic action: \"%s\"\n",
195 rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
200 "rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n"
201 "are welcome to redistribute it under certain conditions. See the GNU\n"
202 "General Public Licence for details.\n"
207 void usage(enum logcode F)
209 print_rsync_version(F);
211 rprintf(F,"\nrsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");
213 rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
214 rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC DEST\n");
215 rprintf(F," or rsync [OPTION]... SRC [SRC]... DEST\n");
216 rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
217 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
218 rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
219 rprintf(F," or rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST\n");
220 rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n");
221 rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n");
222 rprintf(F," sources separated by space as long as they have same top-level\n");
223 rprintf(F,"\nOptions\n");
224 rprintf(F," -v, --verbose increase verbosity\n");
225 rprintf(F," -q, --quiet decrease verbosity\n");
226 rprintf(F," -c, --checksum always checksum\n");
227 rprintf(F," -a, --archive archive mode, equivalent to -rlptgoD\n");
228 rprintf(F," -r, --recursive recurse into directories\n");
229 rprintf(F," -R, --relative use relative path names\n");
230 rprintf(F," --no-relative turn off --relative\n");
231 rprintf(F," --no-implied-dirs don't send implied dirs with -R\n");
232 rprintf(F," -b, --backup make backups (see --suffix & --backup-dir)\n");
233 rprintf(F," --backup-dir make backups into this directory\n");
234 rprintf(F," --suffix=SUFFIX backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX);
235 rprintf(F," -u, --update update only (don't overwrite newer files)\n");
236 rprintf(F," -K, --keep-dirlinks treat symlinked dir on receiver as dir\n");
237 rprintf(F," -l, --links copy symlinks as symlinks\n");
238 rprintf(F," -L, --copy-links copy the referent of all symlinks\n");
239 rprintf(F," --copy-unsafe-links copy the referent of \"unsafe\" symlinks\n");
240 rprintf(F," --safe-links ignore \"unsafe\" symlinks\n");
241 rprintf(F," -H, --hard-links preserve hard links\n");
242 rprintf(F," -p, --perms preserve permissions\n");
243 rprintf(F," -o, --owner preserve owner (root only)\n");
244 rprintf(F," -g, --group preserve group\n");
245 rprintf(F," -D, --devices preserve devices (root only)\n");
246 rprintf(F," -t, --times preserve times\n");
247 rprintf(F," -S, --sparse handle sparse files efficiently\n");
248 rprintf(F," -n, --dry-run show what would have been transferred\n");
249 rprintf(F," -W, --whole-file copy whole files, no incremental checks\n");
250 rprintf(F," --no-whole-file turn off --whole-file\n");
251 rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
252 rprintf(F," -B, --block-size=SIZE checksum blocking size (default %d)\n",BLOCK_SIZE);
253 rprintf(F," -e, --rsh=COMMAND specify the remote shell\n");
254 rprintf(F," --rsync-path=PATH specify path to rsync on the remote machine\n");
255 rprintf(F," --existing only update files that already exist\n");
256 rprintf(F," --ignore-existing ignore files that already exist on receiving side\n");
257 rprintf(F," --delete delete files that don't exist on the sending side\n");
258 rprintf(F," --delete-excluded also delete excluded files on the receiving side\n");
259 rprintf(F," --delete-after receiver deletes after transferring, not before\n");
260 rprintf(F," --ignore-errors delete even if there are I/O errors\n");
261 rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
262 rprintf(F," --partial keep partially transferred files\n");
263 rprintf(F," --force force deletion of directories even if not empty\n");
264 rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
265 rprintf(F," --timeout=TIME set I/O timeout in seconds\n");
266 rprintf(F," -I, --ignore-times turn off mod time & file size quick check\n");
267 rprintf(F," --size-only ignore mod time for quick check (use size)\n");
268 rprintf(F," --modify-window=NUM compare mod times with reduced accuracy\n");
269 rprintf(F," -T --temp-dir=DIR create temporary files in directory DIR\n");
270 rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
271 rprintf(F," --link-dest=DIR create hardlinks to DIR for unchanged files\n");
272 rprintf(F," -P equivalent to --partial --progress\n");
273 rprintf(F," -z, --compress compress file data\n");
274 rprintf(F," -C, --cvs-exclude auto ignore files in the same way CVS does\n");
275 rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
276 rprintf(F," --exclude-from=FILE exclude patterns listed in FILE\n");
277 rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
278 rprintf(F," --include-from=FILE don't exclude patterns listed in FILE\n");
279 rprintf(F," --files-from=FILE read FILE for list of source-file names\n");
280 rprintf(F," -0 --from0 all *-from file lists are delimited by nulls\n");
281 rprintf(F," --version print version number\n");
282 rprintf(F," --daemon run as an rsync daemon\n");
283 rprintf(F," --no-detach do not detach from the parent\n");
284 rprintf(F," --address=ADDRESS bind to the specified address\n");
285 rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
286 rprintf(F," --port=PORT specify alternate rsyncd port number\n");
287 rprintf(F," --blocking-io use blocking I/O for the remote shell\n");
288 rprintf(F," --no-blocking-io turn off --blocking-io\n");
289 rprintf(F," --stats give some file transfer stats\n");
290 rprintf(F," --progress show progress during transfer\n");
291 rprintf(F," --log-format=FORMAT log file transfers using specified format\n");
292 rprintf(F," --password-file=FILE get password from FILE\n");
293 rprintf(F," --bwlimit=KBPS limit I/O bandwidth, KBytes per second\n");
294 rprintf(F," --write-batch=PREFIX write batch fileset starting with PREFIX\n");
295 rprintf(F," --read-batch=PREFIX read batch fileset starting with PREFIX\n");
296 rprintf(F," --checksum-seed=NUM set block/file checksum seed\n");
298 rprintf(F," -4 --ipv4 prefer IPv4\n");
299 rprintf(F," -6 --ipv6 prefer IPv6\n");
301 rprintf(F," -h, --help show this help screen\n");
305 rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
306 rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
309 enum {OPT_VERSION = 1000, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
310 OPT_DELETE_AFTER, OPT_DELETE_EXCLUDED, OPT_LINK_DEST,
311 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW,
312 OPT_READ_BATCH, OPT_WRITE_BATCH,
313 OPT_REFUSED_BASE = 9000};
315 static struct poptOption long_options[] = {
316 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
317 {"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0},
318 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
319 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
320 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
321 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 },
322 {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 },
323 {"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
324 {"one-file-system", 'x', POPT_ARG_NONE, &one_file_system, 0, 0, 0 },
325 {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
326 {"existing", 0, POPT_ARG_NONE, &only_existing, 0, 0, 0 },
327 {"ignore-existing", 0, POPT_ARG_NONE, &opt_ignore_existing, 0, 0, 0 },
328 {"delete-after", 0, POPT_ARG_NONE, 0, OPT_DELETE_AFTER, 0, 0 },
329 {"delete-excluded", 0, POPT_ARG_NONE, 0, OPT_DELETE_EXCLUDED, 0, 0 },
330 {"force", 0, POPT_ARG_NONE, &force_delete, 0, 0, 0 },
331 {"numeric-ids", 0, POPT_ARG_NONE, &numeric_ids, 0, 0, 0 },
332 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
333 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
334 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
335 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
336 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
337 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
338 {"backup", 'b', POPT_ARG_NONE, &make_backups, 0, 0, 0 },
339 {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
340 {"sparse", 'S', POPT_ARG_NONE, &sparse_files, 0, 0, 0 },
341 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
342 {"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 },
343 {"keep-dirlinks", 'K', POPT_ARG_NONE, &keep_dirlinks, 0, 0, 0 },
344 {"links", 'l', POPT_ARG_NONE, &preserve_links, 0, 0, 0 },
345 {"copy-links", 'L', POPT_ARG_NONE, ©_links, 0, 0, 0 },
346 {"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
347 {"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
348 {"copy-unsafe-links", 0, POPT_ARG_NONE, ©_unsafe_links, 0, 0, 0 },
349 {"perms", 'p', POPT_ARG_NONE, &preserve_perms, 0, 0, 0 },
350 {"owner", 'o', POPT_ARG_NONE, &preserve_uid, 0, 0, 0 },
351 {"group", 'g', POPT_ARG_NONE, &preserve_gid, 0, 0, 0 },
352 {"devices", 'D', POPT_ARG_NONE, &preserve_devices, 0, 0, 0 },
353 {"times", 't', POPT_ARG_NONE, &preserve_times, 0, 0, 0 },
354 {"checksum", 'c', POPT_ARG_NONE, &always_checksum, 0, 0, 0 },
355 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
356 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
357 {"archive", 'a', POPT_ARG_NONE, &archive_mode, 0, 0, 0 },
358 {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
359 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
360 {"recursive", 'r', POPT_ARG_NONE, &recurse, 0, 0, 0 },
361 {"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 },
362 {"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
363 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
364 {"block-size", 'B', POPT_ARG_INT, &block_size, 0, 0, 0 },
365 {"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
366 {"timeout", 0, POPT_ARG_INT, &io_timeout, 0, 0, 0 },
367 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
368 {"compare-dest", 0, POPT_ARG_STRING, &compare_dest, 0, 0, 0 },
369 {"link-dest", 0, POPT_ARG_STRING, &compare_dest, OPT_LINK_DEST, 0, 0 },
370 /* TODO: Should this take an optional int giving the compression level? */
371 {"compress", 'z', POPT_ARG_NONE, &do_compression, 0, 0, 0 },
372 {"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
373 {"no-detach", 0, POPT_ARG_NONE, &no_detach, 0, 0, 0 },
374 {"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
375 {"progress", 0, POPT_ARG_NONE, &do_progress, 0, 0, 0 },
376 {"partial", 0, POPT_ARG_NONE, &keep_partial, 0, 0, 0 },
377 {"ignore-errors", 0, POPT_ARG_NONE, &ignore_errors, 0, 0, 0 },
378 {"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
379 {"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
380 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
381 {"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
382 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
383 {"log-format", 0, POPT_ARG_STRING, &log_format, 0, 0, 0 },
384 {"bwlimit", 0, POPT_ARG_INT, &bwlimit, 0, 0, 0 },
385 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
386 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
387 {"hard-links", 'H', POPT_ARG_NONE, &preserve_hard_links, 0, 0, 0 },
388 {"read-batch", 0, POPT_ARG_STRING, &batch_prefix, OPT_READ_BATCH, 0, 0 },
389 {"write-batch", 0, POPT_ARG_STRING, &batch_prefix, OPT_WRITE_BATCH, 0, 0 },
390 {"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
391 {"from0", '0', POPT_ARG_NONE, &eol_nulls, 0, 0, 0},
392 {"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
393 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
394 {"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 },
396 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
397 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
403 static char err_buf[200];
407 * Store the option error message, if any, so that we can log the
408 * connection attempt (which requires parsing the options), and then
409 * show the error later on.
411 void option_error(void)
413 int save_daemon = am_daemon;
416 strcpy(err_buf, "Error parsing options: "
417 "option may be supported on client but not on server?\n");
420 rwrite(FLOG, err_buf, strlen(err_buf));
422 rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
423 am_daemon = save_daemon;
428 * Tweak the option table to disable all options that the rsyncd.conf
429 * file has told us to refuse.
431 static void set_refuse_options(char *bp)
433 struct poptOption *op;
437 if ((cp = strchr(bp, ' ')) != NULL)
439 for (op = long_options; ; op++) {
442 "Unknown option %s in \"refuse options\" setting\n",
446 if (strcmp(bp, op->longName) == 0) {
447 op->val = (op - long_options)+OPT_REFUSED_BASE;
459 static int count_args(char const **argv)
463 while (argv[i] != NULL)
471 * Process command line arguments. Called on both local and remote.
473 * @retval 1 if all options are OK; with globals set to appropriate
476 * @retval 0 on error, with err_buf containing an explanation
478 int parse_arguments(int *argc, const char ***argv, int frommain)
481 char *ref = lp_refuse_options(module_id);
486 set_refuse_options(ref);
488 /* TODO: Call poptReadDefaultConfig; handle errors. */
490 /* The context leaks in case of an error, but if there's a
491 * problem we always exit anyhow. */
492 pc = poptGetContext(RSYNC_NAME, *argc, *argv, long_options, 0);
494 while ((opt = poptGetNextOpt(pc)) != -1) {
495 /* most options are handled automatically by popt;
496 * only special cases are returned and listed here. */
500 print_rsync_version(FINFO);
503 case OPT_MODIFY_WINDOW:
504 /* The value has already been set by popt, but
505 * we need to remember that we're using a
506 * non-default setting. */
507 modify_window_set = 1;
510 case OPT_DELETE_AFTER:
515 case OPT_DELETE_EXCLUDED:
521 if (am_server || sanitize_paths)
522 return 0; /* Impossible... */
523 add_exclude(&exclude_list, poptGetOptArg(pc), 0);
527 if (am_server || sanitize_paths)
528 return 0; /* Impossible... */
529 add_exclude(&exclude_list, poptGetOptArg(pc),
533 case OPT_EXCLUDE_FROM:
534 if (am_server || sanitize_paths)
535 return 0; /* Impossible... */
536 arg = poptGetOptArg(pc);
537 add_exclude_file(&exclude_list, arg,
541 case OPT_INCLUDE_FROM:
542 if (am_server || sanitize_paths)
543 return 0; /* Impossible... */
544 arg = poptGetOptArg(pc);
545 add_exclude_file(&exclude_list, arg,
546 XFLG_FATAL_ERRORS | XFLG_DEF_INCLUDE);
565 exit_cleanup(RERR_SYNTAX);
575 case OPT_WRITE_BATCH:
576 /* popt stores the filename in batch_prefix for us */
578 checksum_seed = FIXED_CHECKSUM_SEED;
582 /* popt stores the filename in batch_prefix for us */
584 checksum_seed = FIXED_CHECKSUM_SEED;
592 snprintf(err_buf, sizeof err_buf,
593 "hard links are not supported on this %s\n",
594 am_server ? "server" : "client");
599 /* A large opt value means that set_refuse_options()
600 * turned this option off (opt-BASE is its index). */
601 if (opt >= OPT_REFUSED_BASE) {
602 struct poptOption *op =
603 &long_options[opt-OPT_REFUSED_BASE];
604 int n = snprintf(err_buf, sizeof err_buf,
605 "This server does not support --%s\n",
608 snprintf(err_buf+n, sizeof err_buf-n,
609 " (-%c)\n", op->shortName);
612 snprintf(err_buf, sizeof err_buf,
614 am_server ? "on remote machine: " : "",
615 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
623 if (preserve_links && !am_sender) {
624 snprintf(err_buf, sizeof err_buf,
625 "symlinks are not supported on this %s\n",
626 am_server ? "server" : "client");
631 #if !SUPPORT_HARD_LINKS
632 if (preserve_hard_links) {
633 snprintf(err_buf, sizeof err_buf,
634 "hard links are not supported on this %s\n",
635 am_server ? "server" : "client");
640 if (write_batch && read_batch) {
642 "write-batch and read-batch can not be used together\n");
643 exit_cleanup(RERR_SYNTAX);
645 if (batch_prefix && strlen(batch_prefix) > MAX_BATCH_PREFIX_LEN) {
647 "the batch-file prefix must be %d characters or less.\n",
648 MAX_BATCH_PREFIX_LEN);
649 exit_cleanup(RERR_SYNTAX);
652 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
653 rprintf(FERROR, "the --temp-dir path is WAY too long.\n");
654 exit_cleanup(RERR_SYNTAX);
657 if (do_compression && (write_batch || read_batch)) {
659 "compress can not be used with write-batch or read-batch\n");
660 exit_cleanup(RERR_SYNTAX);
673 preserve_devices = 1;
676 if (relative_paths < 0)
677 relative_paths = files_from? 1 : 0;
679 *argv = poptGetArgs(pc);
681 *argc = count_args(*argv);
685 if (sanitize_paths) {
687 for (i = *argc; i-- > 0; )
688 (*argv)[i] = alloc_sanitize_path((*argv)[i], NULL);
690 tmpdir = alloc_sanitize_path(tmpdir, curr_dir);
692 compare_dest = alloc_sanitize_path(compare_dest, curr_dir);
694 backup_dir = alloc_sanitize_path(backup_dir, curr_dir);
696 files_from = alloc_sanitize_path(files_from, curr_dir);
706 backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
707 backup_suffix_len = strlen(backup_suffix);
708 if (strchr(backup_suffix, '/') != NULL) {
709 rprintf(FERROR, "--suffix cannot contain slashes: %s\n",
711 exit_cleanup(RERR_SYNTAX);
714 backup_dir_len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
715 backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
716 if (backup_dir_remainder < 32) {
717 rprintf(FERROR, "the --backup-dir path is WAY too long.\n");
718 exit_cleanup(RERR_SYNTAX);
720 if (backup_dir_buf[backup_dir_len - 1] != '/') {
721 backup_dir_buf[backup_dir_len++] = '/';
722 backup_dir_buf[backup_dir_len] = '\0';
724 if (verbose > 1 && !am_sender)
725 rprintf(FINFO, "backup_dir is %s\n", backup_dir_buf);
726 } else if (!backup_suffix_len && (!am_server || !am_sender)) {
728 "--suffix cannot be a null string without --backup-dir\n");
729 exit_cleanup(RERR_SYNTAX);
732 if (do_progress && !verbose)
736 bwlimit_writemax = (size_t)bwlimit * 128;
737 if (bwlimit_writemax < 512)
738 bwlimit_writemax = 512;
743 if (*argc != 2 && !(am_server && am_sender && *argc == 1)) {
745 exit_cleanup(RERR_SYNTAX);
747 if (strcmp(files_from, "-") == 0) {
750 remote_filesfrom_file = "-";
752 else if ((colon = find_colon(files_from)) != 0) {
755 exit_cleanup(RERR_SYNTAX);
757 remote_filesfrom_file = colon+1 + (colon[1] == ':');
758 if (strcmp(remote_filesfrom_file, "-") == 0) {
759 rprintf(FERROR, "Invalid --files-from remote filename\n");
760 exit_cleanup(RERR_SYNTAX);
763 filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
764 if (filesfrom_fd < 0) {
765 rsyserr(FERROR, errno,
766 "failed to open files-from file %s",
768 exit_cleanup(RERR_FILEIO);
778 * Construct a filtered list of options to pass through from the
779 * client to the server.
781 * This involves setting options that will tell the server how to
782 * behave, and also filtering out options that are processed only
785 void server_options(char **args,int *argc)
788 static char argstr[50];
793 if (blocking_io == -1)
796 args[ac++] = "--server";
798 if (daemon_over_rsh) {
799 args[ac++] = "--daemon";
801 /* if we're passing --daemon, we're done */
806 args[ac++] = "--sender";
810 for (i = 0; i < verbose; i++)
813 /* the -q option is intentionally left out */
824 if (keep_dirlinks && am_sender)
829 /* We don't need to send --no-whole-file, because it's the
830 * default for remote transfers, and in any case old versions
831 * of rsync will not understand it. */
833 if (preserve_hard_links)
839 if (preserve_devices)
862 /* this is a complete hack - blame Rusty
864 this is a hack to make the list_only (remote file list)
866 if (list_only && !recurse)
875 if (asprintf(&arg, "-B%u", block_size) < 0)
880 if (max_delete && am_sender) {
881 if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
887 char *r_or_w = write_batch ? "write" : "read";
888 if (asprintf(&arg, "--%s-batch=%s", r_or_w, batch_prefix) < 0)
894 if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
900 if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
906 args[ac++] = "--backup-dir";
907 args[ac++] = backup_dir;
910 /* Only send --suffix if it specifies a non-default value. */
911 if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
912 /* We use the following syntax to avoid weirdness with '~'. */
913 if (asprintf(&arg, "--suffix=%s", backup_suffix) < 0)
919 args[ac++] = "--delete-excluded";
920 else if (delete_mode)
921 args[ac++] = "--delete";
924 args[ac++] = "--size-only";
926 if (modify_window_set) {
927 if (asprintf(&arg, "--modify-window=%d", modify_window) < 0)
933 if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
939 args[ac++] = "--partial";
942 args[ac++] = "--force";
945 args[ac++] = "--delete-after";
948 args[ac++] = "--ignore-errors";
950 if (copy_unsafe_links)
951 args[ac++] = "--copy-unsafe-links";
954 args[ac++] = "--safe-links";
957 args[ac++] = "--numeric-ids";
959 if (only_existing && am_sender)
960 args[ac++] = "--existing";
962 if (opt_ignore_existing && am_sender)
963 args[ac++] = "--ignore-existing";
966 args[ac++] = "--temp-dir";
970 if (compare_dest && am_sender) {
971 /* the server only needs this option if it is not the sender,
972 * and it may be an older version that doesn't know this
973 * option, so don't send it if client is the sender.
975 args[ac++] = link_dest ? "--link-dest" : "--compare-dest";
976 args[ac++] = compare_dest;
979 if (files_from && (!am_sender || remote_filesfrom_file)) {
980 if (remote_filesfrom_file) {
981 args[ac++] = "--files-from";
982 args[ac++] = remote_filesfrom_file;
984 args[ac++] = "--from0";
986 args[ac++] = "--files-from=-";
987 args[ac++] = "--from0";
995 out_of_memory("server_options");
999 * Return the position of a ':' IF it is not part of a filename (i.e. as
1000 * long as it doesn't occur after a slash.
1002 char *find_colon(char *s)
1010 /* now check to see if there is a / in the string before the : - if there is then
1011 discard the colon on the assumption that the : is part of a filename */