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 int select_timeout;
26 extern struct filter_list_struct filter_list;
27 extern struct filter_list_struct server_filter_list;
32 * If 1, send the whole file as literal data rather than trying to
33 * create an incremental diff.
35 * If -1, then look at whether we're local or remote and go by that.
37 * @sa disable_deltas_p()
42 int keep_dirlinks = 0;
44 int preserve_links = 0;
45 int preserve_hard_links = 0;
46 int preserve_perms = 0;
47 int preserve_devices = 0;
50 int preserve_times = 0;
51 int omit_dir_times = 0;
58 int delete_during = 0;
59 int delete_before = 0;
61 int delete_excluded = 0;
62 int one_file_system = 0;
63 int protocol_version = PROTOCOL_VERSION;
65 int do_compression = 0;
68 int relative_paths = -1;
77 char *files_from = NULL;
78 int filesfrom_fd = -1;
79 char *remote_filesfrom_file = NULL;
84 int daemon_over_rsh = 0;
88 int safe_symlinks = 0;
89 int copy_unsafe_links = 0;
91 int daemon_bwlimit = 0;
93 size_t bwlimit_writemax = 0;
94 int only_existing = 0;
95 int opt_ignore_existing = 0;
98 int ignore_errors = 0;
99 int modify_window = 0;
100 int blocking_io = -1;
101 int checksum_seed = 0;
103 int delay_updates = 0;
104 long block_size = 0; /* "long" because popt can't set an int32. */
107 /** Network address family. **/
109 int default_af_hint = 0; /* Any protocol */
111 int default_af_hint = AF_INET; /* Must use IPv4 */
114 /** Do not go into the background when run as --daemon. Good
115 * for debugging and required for running as a service on W32,
116 * or under Unix process-monitors. **/
121 int backup_dir_len = 0;
122 int backup_suffix_len;
123 unsigned int backup_dir_remainder;
125 char *backup_suffix = NULL;
127 char *partial_dir = NULL;
128 char *basis_dir[MAX_BASIS_DIRS+1];
129 char *config_file = NULL;
130 char *shell_cmd = NULL;
131 char *log_format = NULL;
132 char *password_file = NULL;
133 char *rsync_path = RSYNC_PATH;
134 char *backup_dir = NULL;
135 char backup_dir_buf[MAXPATHLEN];
137 int compare_dest = 0;
140 int basis_dir_cnt = 0;
144 int always_checksum = 0;
147 #define MAX_BATCH_NAME_LEN 256 /* Must be less than MAXPATHLEN-13 */
148 char *batch_name = NULL;
150 static int daemon_opt; /* sets am_daemon after option error-reporting */
151 static int F_option_cnt = 0;
152 static int modify_window_set;
153 static char *dest_option = NULL;
154 static char *max_size_arg;
156 /** Local address to bind. As a character string because it's
157 * interpreted by the IPv6 layer: should be a numeric IP4 or IP6
158 * address, or a hostname. **/
162 static void print_rsync_version(enum logcode f)
164 char const *got_socketpair = "no ";
165 char const *have_inplace = "no ";
166 char const *hardlinks = "no ";
167 char const *links = "no ";
168 char const *ipv6 = "no ";
169 STRUCT_STAT *dumstat;
179 #if SUPPORT_HARD_LINKS
191 rprintf(f, "%s version %s protocol version %d\n",
192 RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION);
194 "Copyright (C) 1996-2005 by Andrew Tridgell and others\n");
195 rprintf(f, "<http://rsync.samba.org/>\n");
196 rprintf(f, "Capabilities: %d-bit files, %ssocketpairs, "
197 "%shard links, %ssymlinks, batchfiles, \n",
198 (int) (sizeof (OFF_T) * 8),
199 got_socketpair, hardlinks, links);
201 /* Note that this field may not have type ino_t. It depends
202 * on the complicated interaction between largefile feature
204 rprintf(f, " %sinplace, %sIPv6, %d-bit system inums, %d-bit internal inums\n",
206 (int) (sizeof dumstat->st_ino * 8),
207 (int) (sizeof (int64) * 8));
208 #ifdef MAINTAINER_MODE
209 rprintf(f, " panic action: \"%s\"\n",
214 rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
216 if (sizeof (int64) != SIZEOF_INT64) {
218 "WARNING: size mismatch in SIZEOF_INT64 define (%d != %d)\n",
219 (int) SIZEOF_INT64, (int) sizeof (int64));
224 "rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n"
225 "are welcome to redistribute it under certain conditions. See the GNU\n"
226 "General Public Licence for details.\n"
231 void usage(enum logcode F)
233 print_rsync_version(F);
235 rprintf(F,"\nrsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");
237 rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
238 rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC DEST\n");
239 rprintf(F," or rsync [OPTION]... SRC [SRC]... DEST\n");
240 rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
241 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
242 rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
243 rprintf(F," or rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST\n");
244 rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n");
245 rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n");
246 rprintf(F," sources separated by space as long as they have same top-level\n");
247 rprintf(F,"\nOptions\n");
248 rprintf(F," -v, --verbose increase verbosity\n");
249 rprintf(F," -q, --quiet suppress non-error messages\n");
250 rprintf(F," -c, --checksum skip based on checksum, not mod-time & size\n");
251 rprintf(F," -a, --archive archive mode; same as -rlptgoD (no -H)\n");
252 rprintf(F," -r, --recursive recurse into directories\n");
253 rprintf(F," -R, --relative use relative path names\n");
254 rprintf(F," --no-relative turn off --relative\n");
255 rprintf(F," --no-implied-dirs don't send implied dirs with -R\n");
256 rprintf(F," -b, --backup make backups (see --suffix & --backup-dir)\n");
257 rprintf(F," --backup-dir=DIR make backups into hierarchy based in DIR\n");
258 rprintf(F," --suffix=SUFFIX set backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX);
259 rprintf(F," -u, --update skip files that are newer on the receiver\n");
260 rprintf(F," --inplace update destination files in-place (SEE MAN PAGE)\n");
261 rprintf(F," -d, --dirs transfer directories without recursing\n");
262 rprintf(F," -l, --links copy symlinks as symlinks\n");
263 rprintf(F," -L, --copy-links transform symlink into referent file/dir\n");
264 rprintf(F," --copy-unsafe-links only \"unsafe\" symlinks are transformed\n");
265 rprintf(F," --safe-links ignore symlinks that point outside the source tree\n");
266 rprintf(F," -H, --hard-links preserve hard links\n");
267 rprintf(F," -K, --keep-dirlinks treat symlinked dir on receiver as dir\n");
268 rprintf(F," -p, --perms preserve permissions\n");
269 rprintf(F," -o, --owner preserve owner (root only)\n");
270 rprintf(F," -g, --group preserve group\n");
271 rprintf(F," -D, --devices preserve devices (root only)\n");
272 rprintf(F," -t, --times preserve times\n");
273 rprintf(F," -O, --omit-dir-times omit directories when preserving times\n");
274 rprintf(F," -S, --sparse handle sparse files efficiently\n");
275 rprintf(F," -n, --dry-run show what would have been transferred\n");
276 rprintf(F," -W, --whole-file copy files whole\n");
277 rprintf(F," --no-whole-file always use incremental rsync algorithm\n");
278 rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
279 rprintf(F," -B, --block-size=SIZE force a fixed checksum block-size\n");
280 rprintf(F," -e, --rsh=COMMAND specify the remote shell to use\n");
281 rprintf(F," --rsync-path=PATH specify path to rsync on the remote machine\n");
282 rprintf(F," --existing only update files that already exist on receiver\n");
283 rprintf(F," --ignore-existing ignore files that already exist on receiving side\n");
284 rprintf(F," --del an alias for --delete-during\n");
285 rprintf(F," --delete delete files that don't exist on the sending side\n");
286 rprintf(F," --delete-before receiver deletes before transfer (default)\n");
287 rprintf(F," --delete-during receiver deletes during transfer, not before\n");
288 rprintf(F," --delete-after receiver deletes after transfer, not before\n");
289 rprintf(F," --delete-excluded also delete excluded files on the receiving side\n");
290 rprintf(F," --ignore-errors delete even if there are I/O errors\n");
291 rprintf(F," --force force deletion of directories even if not empty\n");
292 rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
293 rprintf(F," --max-size=SIZE don't transfer any file larger than SIZE\n");
294 rprintf(F," --partial keep partially transferred files\n");
295 rprintf(F," --partial-dir=DIR put a partially transferred file into DIR\n");
296 rprintf(F," --delay-updates put all updated files into place at transfer's end\n");
297 rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
298 rprintf(F," --timeout=TIME set I/O timeout in seconds\n");
299 rprintf(F," -I, --ignore-times don't skip files that match in size and mod-time\n");
300 rprintf(F," --size-only skip files that match in size\n");
301 rprintf(F," --modify-window=NUM compare mod-times with reduced accuracy\n");
302 rprintf(F," -T, --temp-dir=DIR create temporary files in directory DIR\n");
303 rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
304 rprintf(F," --copy-dest=DIR ... and include copies of unchanged files\n");
305 rprintf(F," --link-dest=DIR hardlink to files in DIR when unchanged\n");
306 rprintf(F," -z, --compress compress file data\n");
307 rprintf(F," -C, --cvs-exclude auto-ignore files the same way CVS does\n");
308 rprintf(F," -f, --filter=RULE add a file-filtering RULE\n");
309 rprintf(F," -F same as --filter=': /.rsync-filter'\n");
310 rprintf(F," repeated: --filter='- .rsync-filter'\n");
311 rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
312 rprintf(F," --exclude-from=FILE read exclude patterns from FILE\n");
313 rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
314 rprintf(F," --include-from=FILE read include patterns from FILE\n");
315 rprintf(F," --files-from=FILE read list of source-file names from FILE\n");
316 rprintf(F," -0, --from0 all *-from file lists are delimited by nulls\n");
317 rprintf(F," --version print version number\n");
318 rprintf(F," --port=PORT specify double-colon alternate port number\n");
319 rprintf(F," --blocking-io use blocking I/O for the remote shell\n");
320 rprintf(F," --no-blocking-io turn off blocking I/O when it is the default\n");
321 rprintf(F," --stats give some file-transfer stats\n");
322 rprintf(F," --progress show progress during transfer\n");
323 rprintf(F," -P same as --partial --progress\n");
324 rprintf(F," --log-format=FORMAT log file-transfers using specified format\n");
325 rprintf(F," --password-file=FILE read password from FILE\n");
326 rprintf(F," --list-only list the files instead of copying them\n");
327 rprintf(F," --bwlimit=KBPS limit I/O bandwidth; KBytes per second\n");
328 rprintf(F," --write-batch=FILE write a batched update to FILE\n");
329 rprintf(F," --read-batch=FILE read a batched update from FILE\n");
331 rprintf(F," -4, --ipv4 prefer IPv4\n");
332 rprintf(F," -6, --ipv6 prefer IPv6\n");
334 rprintf(F," -h, --help show this help screen\n");
336 rprintf(F,"\nUse \"rsync --daemon --help\" to see the daemon-mode command-line options.\n");
337 rprintf(F,"Please see the rsync(1) and rsyncd.conf(5) man pages for full documentation.\n");
338 rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
341 enum {OPT_VERSION = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
342 OPT_FILTER, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST,
343 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW,
344 OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_TIMEOUT, OPT_MAX_SIZE,
345 OPT_REFUSED_BASE = 9000};
347 static struct poptOption long_options[] = {
348 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
349 {"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0},
350 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
351 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
352 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
353 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 },
354 {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 },
355 {"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
356 {"one-file-system", 'x', POPT_ARG_NONE, &one_file_system, 0, 0, 0 },
357 {"existing", 0, POPT_ARG_NONE, &only_existing, 0, 0, 0 },
358 {"ignore-existing", 0, POPT_ARG_NONE, &opt_ignore_existing, 0, 0, 0 },
359 {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
360 {"delete-before", 0, POPT_ARG_VAL, &delete_before, 2, 0, 0 },
361 {"delete-during", 0, POPT_ARG_NONE, &delete_during, 0, 0, 0 },
362 {"delete-after", 0, POPT_ARG_NONE, &delete_after, 0, 0, 0 },
363 {"delete-excluded", 0, POPT_ARG_NONE, &delete_excluded, 0, 0, 0 },
364 {"force", 0, POPT_ARG_NONE, &force_delete, 0, 0, 0 },
365 {"numeric-ids", 0, POPT_ARG_NONE, &numeric_ids, 0, 0, 0 },
366 {"filter", 'f', POPT_ARG_STRING, 0, OPT_FILTER, 0, 0 },
367 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
368 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
369 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
370 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
371 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
372 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
373 {"backup", 'b', POPT_ARG_NONE, &make_backups, 0, 0, 0 },
374 {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
375 {"sparse", 'S', POPT_ARG_NONE, &sparse_files, 0, 0, 0 },
376 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
377 {"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 },
378 {"inplace", 0, POPT_ARG_NONE, &inplace, 0, 0, 0 },
379 {"dirs", 'd', POPT_ARG_VAL, &xfer_dirs, 2, 0, 0 },
380 {"links", 'l', POPT_ARG_NONE, &preserve_links, 0, 0, 0 },
381 {"copy-links", 'L', POPT_ARG_NONE, ©_links, 0, 0, 0 },
382 {"keep-dirlinks", 'K', POPT_ARG_NONE, &keep_dirlinks, 0, 0, 0 },
383 {"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
384 {"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
385 {"copy-unsafe-links", 0, POPT_ARG_NONE, ©_unsafe_links, 0, 0, 0 },
386 {"perms", 'p', POPT_ARG_NONE, &preserve_perms, 0, 0, 0 },
387 {"owner", 'o', POPT_ARG_NONE, &preserve_uid, 0, 0, 0 },
388 {"group", 'g', POPT_ARG_NONE, &preserve_gid, 0, 0, 0 },
389 {"devices", 'D', POPT_ARG_NONE, &preserve_devices, 0, 0, 0 },
390 {"times", 't', POPT_ARG_NONE, &preserve_times, 0, 0, 0 },
391 {"omit-dir-times", 'O', POPT_ARG_NONE, &omit_dir_times, 0, 0, 0 },
392 {"checksum", 'c', POPT_ARG_NONE, &always_checksum, 0, 0, 0 },
393 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
394 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
395 {"archive", 'a', POPT_ARG_NONE, &archive_mode, 0, 0, 0 },
396 {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
397 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
398 {"recursive", 'r', POPT_ARG_VAL, &recurse, -1, 0, 0 },
399 {"list-only", 0, POPT_ARG_VAL, &list_only, 2, 0, 0 },
400 {"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 },
401 {"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
402 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
403 {"block-size", 'B', POPT_ARG_LONG, &block_size, 0, 0, 0 },
404 {"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
405 {"max-size", 0, POPT_ARG_STRING, &max_size_arg, OPT_MAX_SIZE, 0, 0 },
406 {"timeout", 0, POPT_ARG_INT, &io_timeout, OPT_TIMEOUT, 0, 0 },
407 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
408 {"compare-dest", 0, POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 },
409 {"copy-dest", 0, POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 },
410 {"link-dest", 0, POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 },
411 /* TODO: Should this take an optional int giving the compression level? */
412 {"compress", 'z', POPT_ARG_NONE, &do_compression, 0, 0, 0 },
413 {"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
414 {"progress", 0, POPT_ARG_NONE, &do_progress, 0, 0, 0 },
415 {"partial", 0, POPT_ARG_NONE, &keep_partial, 0, 0, 0 },
416 {"partial-dir", 0, POPT_ARG_STRING, &partial_dir, 0, 0, 0 },
417 {"delay-updates", 0, POPT_ARG_NONE, &delay_updates, 0, 0, 0 },
418 {"ignore-errors", 0, POPT_ARG_NONE, &ignore_errors, 0, 0, 0 },
419 {"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
420 {"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
421 {0, 'F', POPT_ARG_NONE, 0, 'F', 0, 0 },
422 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
423 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
424 {"log-format", 0, POPT_ARG_STRING, &log_format, 0, 0, 0 },
425 {"bwlimit", 0, POPT_ARG_INT, &bwlimit, 0, 0, 0 },
426 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
427 {"hard-links", 'H', POPT_ARG_NONE, &preserve_hard_links, 0, 0, 0 },
428 {"read-batch", 0, POPT_ARG_STRING, &batch_name, OPT_READ_BATCH, 0, 0 },
429 {"write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_WRITE_BATCH, 0, 0 },
430 {"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
431 {"from0", '0', POPT_ARG_NONE, &eol_nulls, 0, 0, 0},
432 {"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
433 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
434 {"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 },
436 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
437 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
439 /* All these options switch us into daemon-mode option-parsing. */
440 {"address", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
441 {"config", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
442 {"daemon", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
443 {"no-detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
447 static void daemon_usage(enum logcode F)
449 print_rsync_version(F);
451 rprintf(F,"\nUsage: rsync --daemon [OPTION]...\n");
452 rprintf(F," --address=ADDRESS bind to the specified address\n");
453 rprintf(F," --bwlimit=KBPS limit I/O bandwidth; KBytes per second\n");
454 rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
455 rprintf(F," --no-detach do not detach from the parent\n");
456 rprintf(F," --port=PORT listen on alternate port number\n");
457 rprintf(F," -v, --verbose increase verbosity\n");
459 rprintf(F," -4, --ipv4 prefer IPv4\n");
460 rprintf(F," -6, --ipv6 prefer IPv6\n");
462 rprintf(F," -h, --help show this help screen\n");
464 rprintf(F,"\nIf you were not trying to invoke rsync as a daemon, avoid using any of the\n");
465 rprintf(F,"daemon-specific rsync options. See also the rsyncd.conf(5) man page.\n");
468 static struct poptOption long_daemon_options[] = {
469 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
470 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
471 {"bwlimit", 0, POPT_ARG_INT, &daemon_bwlimit, 0, 0, 0 },
472 {"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
473 {"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
475 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
476 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
478 {"no-detach", 0, POPT_ARG_NONE, &no_detach, 0, 0, 0 },
479 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
480 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
481 {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
482 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
483 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
488 static char err_buf[200];
492 * Store the option error message, if any, so that we can log the
493 * connection attempt (which requires parsing the options), and then
494 * show the error later on.
496 void option_error(void)
499 strcpy(err_buf, "Error parsing options: "
500 "option may be supported on client but not on server?\n");
503 rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
508 * Tweak the option table to disable all options that the rsyncd.conf
509 * file has told us to refuse.
511 static void set_refuse_options(char *bp)
513 struct poptOption *op;
514 char *cp, shortname[2];
515 int is_wild, found_match;
520 while (*bp == ' ') bp++;
523 if ((cp = strchr(bp, ' ')) != NULL)
525 /* If they specify "delete", reject all delete options. */
526 if (strcmp(bp, "delete") == 0)
528 is_wild = strpbrk(bp, "*?[") != NULL;
530 for (op = long_options; ; op++) {
531 *shortname = op->shortName;
532 if (!op->longName && !*shortname)
534 if ((op->longName && wildmatch(bp, op->longName))
535 || (*shortname && wildmatch(bp, shortname))) {
536 if (op->argInfo == POPT_ARG_VAL)
537 op->argInfo = POPT_ARG_NONE;
538 op->val = (op - long_options) + OPT_REFUSED_BASE;
545 rprintf(FLOG, "No match for refuse-options string \"%s\"\n",
556 static int count_args(const char **argv)
561 while (argv[i] != NULL)
570 * Process command line arguments. Called on both local and remote.
572 * @retval 1 if all options are OK; with globals set to appropriate
575 * @retval 0 on error, with err_buf containing an explanation
577 int parse_arguments(int *argc, const char ***argv, int frommain)
580 char *ref = lp_refuse_options(module_id);
585 set_refuse_options(ref);
587 /* TODO: Call poptReadDefaultConfig; handle errors. */
589 /* The context leaks in case of an error, but if there's a
590 * problem we always exit anyhow. */
591 pc = poptGetContext(RSYNC_NAME, *argc, *argv, long_options, 0);
593 struct poptAlias my_alias;
594 char **argv = new_array(char *, 1);
595 argv[0] = strdup("--delete-during");
596 my_alias.longName = "del", my_alias.shortName = '\0';
598 my_alias.argv = (const char **)argv;
600 poptAddAlias(pc, my_alias, 0);
602 poptReadDefaultConfig(pc, 0);
604 while ((opt = poptGetNextOpt(pc)) != -1) {
605 /* most options are handled automatically by popt;
606 * only special cases are returned and listed here. */
610 print_rsync_version(FINFO);
615 strcpy(err_buf, "Attempt to hack rsync thwarted!\n");
619 pc = poptGetContext(RSYNC_NAME, *argc, *argv,
620 long_daemon_options, 0);
621 while ((opt = poptGetNextOpt(pc)) != -1) {
633 "rsync: %s: %s (in daemon mode)\n",
634 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
640 rprintf(FERROR, "Daemon option(s) used without --daemon.\n");
643 "(Type \"rsync --daemon --help\" for assistance with daemon mode.)\n");
644 exit_cleanup(RERR_SYNTAX);
646 *argv = poptGetArgs(pc);
647 *argc = count_args(*argv);
652 case OPT_MODIFY_WINDOW:
653 /* The value has already been set by popt, but
654 * we need to remember that we're using a
655 * non-default setting. */
656 modify_window_set = 1;
660 add_filter(&filter_list, poptGetOptArg(pc), 0);
664 add_filter(&filter_list, poptGetOptArg(pc),
669 add_filter(&filter_list, poptGetOptArg(pc),
673 case OPT_EXCLUDE_FROM:
674 case OPT_INCLUDE_FROM:
675 arg = poptGetOptArg(pc);
677 arg = sanitize_path(NULL, arg, NULL, 0);
678 if (server_filter_list.head) {
679 char *cp = (char *)arg;
681 if (check_filter(&server_filter_list, cp, 0) < 0)
682 goto options_rejected;
684 add_filter_file(&filter_list, arg, XFLG_FATAL_ERRORS
685 | (opt == OPT_INCLUDE_FROM ? XFLG_DEF_INCLUDE
686 : XFLG_DEF_EXCLUDE));
705 exit_cleanup(RERR_SYNTAX);
711 switch (++F_option_cnt) {
713 add_filter(&filter_list,
714 ": /.rsync-filter", 0);
717 add_filter(&filter_list,
718 "- .rsync-filter", 0);
728 case OPT_WRITE_BATCH:
729 /* batch_name is already set */
734 /* batch_name is already set */
739 for (arg = max_size_arg; isdigit(*arg); arg++) {}
741 for (arg++; isdigit(*arg); arg++) {}
744 max_size = atof(max_size_arg) * 1024;
747 max_size = atof(max_size_arg) * 1024*1024;
750 max_size = atof(max_size_arg) * 1024*1024*1024;
753 max_size = atof(max_size_arg);
760 snprintf(err_buf, sizeof err_buf,
761 "--max-size value is invalid: %s\n",
768 if (io_timeout && io_timeout < select_timeout)
769 select_timeout = io_timeout;
775 dest_option = "--link-dest";
778 snprintf(err_buf, sizeof err_buf,
779 "hard links are not supported on this %s\n",
780 am_server ? "server" : "client");
786 dest_option = "--copy-dest";
789 case OPT_COMPARE_DEST:
791 dest_option = "--compare-dest";
793 if (basis_dir_cnt >= MAX_BASIS_DIRS) {
794 snprintf(err_buf, sizeof err_buf,
795 "ERROR: at most %d %s args may be specified\n",
796 MAX_BASIS_DIRS, dest_option);
799 arg = poptGetOptArg(pc);
801 arg = sanitize_path(NULL, arg, NULL, 0);
802 basis_dir[basis_dir_cnt++] = (char *)arg;
806 /* A large opt value means that set_refuse_options()
807 * turned this option off (opt-BASE is its index). */
808 if (opt >= OPT_REFUSED_BASE) {
809 struct poptOption *op =
810 &long_options[opt-OPT_REFUSED_BASE];
811 int n = snprintf(err_buf, sizeof err_buf,
812 "The server is configured to refuse --%s\n",
815 snprintf(err_buf+n, sizeof err_buf-n,
816 " (-%c)\n", op->shortName);
819 snprintf(err_buf, sizeof err_buf, "%s%s: %s\n",
820 am_server ? "on remote machine: " : "",
821 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
829 if (preserve_links && !am_sender) {
830 snprintf(err_buf, sizeof err_buf,
831 "symlinks are not supported on this %s\n",
832 am_server ? "server" : "client");
837 #if !SUPPORT_HARD_LINKS
838 if (preserve_hard_links) {
839 snprintf(err_buf, sizeof err_buf,
840 "hard links are not supported on this %s\n",
841 am_server ? "server" : "client");
846 if (write_batch && read_batch) {
847 snprintf(err_buf, sizeof err_buf,
848 "--write-batch and --read-batch can not be used together\n");
851 if (write_batch || read_batch) {
853 snprintf(err_buf, sizeof err_buf,
854 "--%s-batch cannot be used with --dry_run (-n)\n",
855 write_batch ? "write" : "read");
860 "ignoring --%s-batch option sent to server\n",
861 write_batch ? "write" : "read");
862 /* We don't actually exit_cleanup(), so that we can
863 * still service older version clients that still send
864 * batch args to server. */
865 read_batch = write_batch = 0;
869 if (read_batch && files_from) {
870 snprintf(err_buf, sizeof err_buf,
871 "--read-batch cannot be used with --files-from\n");
874 if (batch_name && strlen(batch_name) > MAX_BATCH_NAME_LEN) {
875 snprintf(err_buf, sizeof err_buf,
876 "the batch-file name must be %d characters or less.\n",
881 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
882 snprintf(err_buf, sizeof err_buf,
883 "the --temp-dir path is WAY too long.\n");
887 if (compare_dest + copy_dest + link_dest > 1) {
888 snprintf(err_buf, sizeof err_buf,
889 "You may not mix --compare-dest, --copy-dest, and --link-dest.\n");
895 recurse = -1; /* infinite recursion */
903 preserve_devices = 1;
906 if (recurse || list_only || files_from)
909 if (relative_paths < 0)
910 relative_paths = files_from? 1 : 0;
912 if (!!delete_before + delete_during + delete_after > 1) {
913 snprintf(err_buf, sizeof err_buf,
914 "You may not combine multiple --delete-WHEN options.\n");
917 if (delete_before || delete_during || delete_after)
919 else if (delete_mode || delete_excluded)
920 delete_mode = delete_before = 1;
922 *argv = poptGetArgs(pc);
923 *argc = count_args(*argv);
925 if (sanitize_paths) {
927 for (i = *argc; i-- > 0; )
928 (*argv)[i] = sanitize_path(NULL, (*argv)[i], "", 0);
930 tmpdir = sanitize_path(NULL, tmpdir, NULL, 0);
932 partial_dir = sanitize_path(NULL, partial_dir, NULL, 0);
934 backup_dir = sanitize_path(NULL, backup_dir, NULL, 0);
936 files_from = sanitize_path(NULL, files_from, NULL, 0);
938 if (server_filter_list.head && !am_sender) {
939 struct filter_list_struct *elp = &server_filter_list;
942 clean_fname(tmpdir, 1);
943 if (check_filter(elp, tmpdir, 1) < 0)
944 goto options_rejected;
947 clean_fname(partial_dir, 1);
948 if (check_filter(elp, partial_dir, 1) < 0)
949 goto options_rejected;
951 for (i = 0; i < basis_dir_cnt; i++) {
952 clean_fname(basis_dir[i], 1);
953 if (check_filter(elp, basis_dir[i], 1) < 0)
954 goto options_rejected;
957 clean_fname(backup_dir, 1);
958 if (check_filter(elp, backup_dir, 1) < 0)
959 goto options_rejected;
962 if (server_filter_list.head && files_from) {
963 clean_fname(files_from, 1);
964 if (check_filter(&server_filter_list, files_from, 0) < 0) {
966 snprintf(err_buf, sizeof err_buf,
967 "Your options have been rejected by the server.\n");
973 backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
974 backup_suffix_len = strlen(backup_suffix);
975 if (strchr(backup_suffix, '/') != NULL) {
976 snprintf(err_buf, sizeof err_buf,
977 "--suffix cannot contain slashes: %s\n",
982 backup_dir_len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
983 backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
984 if (backup_dir_remainder < 32) {
985 snprintf(err_buf, sizeof err_buf,
986 "the --backup-dir path is WAY too long.\n");
989 if (backup_dir_buf[backup_dir_len - 1] != '/') {
990 backup_dir_buf[backup_dir_len++] = '/';
991 backup_dir_buf[backup_dir_len] = '\0';
993 if (verbose > 1 && !am_sender)
994 rprintf(FINFO, "backup_dir is %s\n", backup_dir_buf);
995 } else if (!backup_suffix_len && (!am_server || !am_sender)) {
996 snprintf(err_buf, sizeof err_buf,
997 "--suffix cannot be a null string without --backup-dir\n");
1001 if (do_progress && !verbose)
1004 if (daemon_bwlimit && (!bwlimit || bwlimit > daemon_bwlimit))
1005 bwlimit = daemon_bwlimit;
1007 bwlimit_writemax = (size_t)bwlimit * 128;
1008 if (bwlimit_writemax < 512)
1009 bwlimit_writemax = 512;
1012 if (delay_updates && !partial_dir)
1013 partial_dir = ".~tmp~";
1018 snprintf(err_buf, sizeof err_buf,
1019 "--inplace cannot be used with --%s\n",
1020 delay_updates ? "delay-updates" : "partial-dir");
1025 snprintf(err_buf, sizeof err_buf,
1026 "--inplace is not supported on this %s\n",
1027 am_server ? "server" : "client");
1031 if (keep_partial && !partial_dir)
1032 partial_dir = getenv("RSYNC_PARTIAL_DIR");
1034 if (!*partial_dir || strcmp(partial_dir, ".") == 0)
1036 else if (*partial_dir != '/') {
1037 add_filter(&filter_list, partial_dir,
1038 XFLG_DIRECTORY | XFLG_DEF_EXCLUDE);
1046 if (*argc > 2 || (!am_daemon && *argc == 1)) {
1048 exit_cleanup(RERR_SYNTAX);
1050 if (strcmp(files_from, "-") == 0) {
1053 remote_filesfrom_file = "-";
1055 else if ((colon = find_colon(files_from)) != 0) {
1058 exit_cleanup(RERR_SYNTAX);
1060 remote_filesfrom_file = colon+1 + (colon[1] == ':');
1061 if (strcmp(remote_filesfrom_file, "-") == 0) {
1062 snprintf(err_buf, sizeof err_buf,
1063 "Invalid --files-from remote filename\n");
1067 filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
1068 if (filesfrom_fd < 0) {
1069 snprintf(err_buf, sizeof err_buf,
1070 "failed to open files-from file %s: %s\n",
1071 files_from, strerror(errno));
1082 * Construct a filtered list of options to pass through from the
1083 * client to the server.
1085 * This involves setting options that will tell the server how to
1086 * behave, and also filtering out options that are processed only
1089 void server_options(char **args,int *argc)
1091 static char argstr[50+MAX_BASIS_DIRS*2];
1097 if (blocking_io == -1)
1100 args[ac++] = "--server";
1102 if (daemon_over_rsh) {
1103 args[ac++] = "--daemon";
1105 /* if we're passing --daemon, we're done */
1110 args[ac++] = "--sender";
1114 for (i = 0; i < verbose; i++)
1117 /* the -q option is intentionally left out */
1130 if (keep_dirlinks && am_sender)
1135 /* We don't need to send --no-whole-file, because it's the
1136 * default for remote transfers, and in any case old versions
1137 * of rsync will not understand it. */
1139 if (preserve_hard_links)
1145 if (preserve_devices)
1149 if (omit_dir_times && am_sender)
1155 if (always_checksum)
1163 if (one_file_system)
1170 /* This is a complete hack - blame Rusty. FIXME!
1171 * This hack is only needed for older rsync versions that
1172 * don't understand the --list-only option. */
1173 if (list_only == 1 && recurse >= 0)
1179 args[ac++] = argstr;
1182 args[ac++] = "--list-only";
1185 if (asprintf(&arg, "-B%lu", block_size) < 0)
1190 if (max_delete && am_sender) {
1191 if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
1196 if (max_size && am_sender) {
1197 args[ac++] = "--max-size";
1198 args[ac++] = max_size_arg;
1202 if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
1208 if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
1214 args[ac++] = "--backup-dir";
1215 args[ac++] = backup_dir;
1218 /* Only send --suffix if it specifies a non-default value. */
1219 if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
1220 /* We use the following syntax to avoid weirdness with '~'. */
1221 if (asprintf(&arg, "--suffix=%s", backup_suffix) < 0)
1227 if (delete_excluded)
1228 args[ac++] = "--delete-excluded";
1229 else if (delete_before == 1 || delete_after)
1230 args[ac++] = "--delete";
1231 if (delete_before > 1)
1232 args[ac++] = "--delete-before";
1234 args[ac++] = "--delete-during";
1236 args[ac++] = "--delete-after";
1238 args[ac++] = "--force";
1242 args[ac++] = "--size-only";
1244 if (modify_window_set) {
1245 if (asprintf(&arg, "--modify-window=%d", modify_window) < 0)
1250 if (checksum_seed) {
1251 if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
1256 if (partial_dir && am_sender) {
1257 args[ac++] = "--partial-dir";
1258 args[ac++] = partial_dir;
1260 args[ac++] = "--delay-updates";
1261 } else if (keep_partial)
1262 args[ac++] = "--partial";
1265 args[ac++] = "--ignore-errors";
1267 if (copy_unsafe_links)
1268 args[ac++] = "--copy-unsafe-links";
1271 args[ac++] = "--safe-links";
1274 args[ac++] = "--numeric-ids";
1276 if (only_existing && am_sender)
1277 args[ac++] = "--existing";
1279 if (opt_ignore_existing && am_sender)
1280 args[ac++] = "--ignore-existing";
1283 args[ac++] = "--inplace";
1286 args[ac++] = "--temp-dir";
1287 args[ac++] = tmpdir;
1290 if (basis_dir[0] && am_sender) {
1291 /* the server only needs this option if it is not the sender,
1292 * and it may be an older version that doesn't know this
1293 * option, so don't send it if client is the sender.
1296 for (i = 0; i < basis_dir_cnt; i++) {
1297 args[ac++] = dest_option;
1298 args[ac++] = basis_dir[i];
1302 if (files_from && (!am_sender || remote_filesfrom_file)) {
1303 if (remote_filesfrom_file) {
1304 args[ac++] = "--files-from";
1305 args[ac++] = remote_filesfrom_file;
1307 args[ac++] = "--from0";
1309 args[ac++] = "--files-from=-";
1310 args[ac++] = "--from0";
1312 if (!relative_paths)
1313 args[ac++] = "--no-relative";
1315 if (!implied_dirs && !am_sender)
1316 args[ac++] = "--no-implied-dirs";
1322 out_of_memory("server_options");
1326 * Return the position of a ':' IF it is not part of a filename (i.e. as
1327 * long as it doesn't occur after a slash.
1329 char *find_colon(char *s)
1337 /* now check to see if there is a / in the string before the : - if there is then
1338 discard the colon on the assumption that the : is part of a filename */