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 exclude_list_struct exclude_list;
27 extern struct exclude_list_struct server_exclude_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;
57 int delete_excluded = 0;
58 int one_file_system = 0;
59 int protocol_version = PROTOCOL_VERSION;
61 int do_compression = 0;
64 int relative_paths = -1;
74 char *files_from = NULL;
75 int filesfrom_fd = -1;
76 char *remote_filesfrom_file = NULL;
80 int daemon_over_rsh = 0;
84 int safe_symlinks = 0;
85 int copy_unsafe_links = 0;
88 size_t bwlimit_writemax = 0;
90 int only_existing = 0;
91 int opt_ignore_existing = 0;
93 int ignore_errors = 0;
94 int modify_window = 0;
96 int checksum_seed = 0;
98 unsigned int block_size = 0;
101 /** Network address family. **/
103 int default_af_hint = 0; /* Any protocol */
105 int default_af_hint = AF_INET; /* Must use IPv4 */
108 /** Do not go into the background when run as --daemon. Good
109 * for debugging and required for running as a service on W32,
110 * or under Unix process-monitors. **/
115 int backup_dir_len = 0;
116 int backup_suffix_len;
117 unsigned int backup_dir_remainder;
119 char *backup_suffix = NULL;
121 char *partial_dir = NULL;
122 char *compare_dest = NULL;
123 char *config_file = NULL;
124 char *shell_cmd = NULL;
125 char *log_format = NULL;
126 char *password_file = NULL;
127 char *rsync_path = RSYNC_PATH;
128 char *backup_dir = NULL;
129 char backup_dir_buf[MAXPATHLEN];
130 int rsync_port = RSYNC_PORT;
135 int always_checksum = 0;
138 #define MAX_BATCH_NAME_LEN 256 /* Must be less than MAXPATHLEN-13 */
139 char *batch_name = NULL;
141 static int daemon_opt; /* sets am_daemon after option error-reporting */
142 static int modify_window_set;
144 /** Local address to bind. As a character string because it's
145 * interpreted by the IPv6 layer: should be a numeric IP4 or IP6
146 * address, or a hostname. **/
150 static void print_rsync_version(enum logcode f)
152 char const *got_socketpair = "no ";
153 char const *have_inplace = "no ";
154 char const *hardlinks = "no ";
155 char const *links = "no ";
156 char const *ipv6 = "no ";
157 STRUCT_STAT *dumstat;
159 #ifdef HAVE_SOCKETPAIR
167 #if SUPPORT_HARD_LINKS
179 rprintf(f, "%s version %s protocol version %d\n",
180 RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION);
182 "Copyright (C) 1996-2004 by Andrew Tridgell and others\n");
183 rprintf(f, "<http://rsync.samba.org/>\n");
184 rprintf(f, "Capabilities: %d-bit files, %ssocketpairs, "
185 "%shard links, %ssymlinks, batchfiles, \n",
186 (int) (sizeof (OFF_T) * 8),
187 got_socketpair, hardlinks, links);
189 /* Note that this field may not have type ino_t. It depends
190 * on the complicated interaction between largefile feature
192 rprintf(f, " %sinplace, %sIPv6, %d-bit system inums, %d-bit internal inums\n",
194 (int) (sizeof dumstat->st_ino * 8),
195 (int) (sizeof (uint64) * 8));
196 #ifdef MAINTAINER_MODE
197 rprintf(f, " panic action: \"%s\"\n",
201 #ifdef INT64_IS_OFF_T
202 if (sizeof (int64) < 8)
203 rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
208 "rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n"
209 "are welcome to redistribute it under certain conditions. See the GNU\n"
210 "General Public Licence for details.\n"
215 void usage(enum logcode F)
217 print_rsync_version(F);
219 rprintf(F,"\nrsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");
221 rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
222 rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC DEST\n");
223 rprintf(F," or rsync [OPTION]... SRC [SRC]... DEST\n");
224 rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
225 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
226 rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
227 rprintf(F," or rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST\n");
228 rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n");
229 rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n");
230 rprintf(F," sources separated by space as long as they have same top-level\n");
231 rprintf(F,"\nOptions\n");
232 rprintf(F," -v, --verbose increase verbosity\n");
233 rprintf(F," -q, --quiet decrease verbosity\n");
234 rprintf(F," -c, --checksum always checksum\n");
235 rprintf(F," -a, --archive archive mode, equivalent to -rlptgoD (no -H)\n");
236 rprintf(F," -r, --recursive recurse into directories\n");
237 rprintf(F," -R, --relative use relative path names\n");
238 rprintf(F," --no-relative turn off --relative\n");
239 rprintf(F," --no-implied-dirs don't send implied dirs with -R\n");
240 rprintf(F," -b, --backup make backups (see --suffix & --backup-dir)\n");
241 rprintf(F," --backup-dir make backups into this directory\n");
242 rprintf(F," --suffix=SUFFIX backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX);
243 rprintf(F," -u, --update update only (don't overwrite newer files)\n");
244 rprintf(F," --inplace update destination files inplace (SEE MAN PAGE)\n");
245 rprintf(F," -K, --keep-dirlinks treat symlinked dir on receiver as dir\n");
246 rprintf(F," -l, --links copy symlinks as symlinks\n");
247 rprintf(F," -L, --copy-links copy the referent of all symlinks\n");
248 rprintf(F," --copy-unsafe-links copy the referent of \"unsafe\" symlinks\n");
249 rprintf(F," --safe-links ignore \"unsafe\" symlinks\n");
250 rprintf(F," -H, --hard-links preserve hard links\n");
251 rprintf(F," -p, --perms preserve permissions\n");
252 rprintf(F," -o, --owner preserve owner (root only)\n");
253 rprintf(F," -g, --group preserve group\n");
254 rprintf(F," -D, --devices preserve devices (root only)\n");
255 rprintf(F," -t, --times preserve times\n");
256 rprintf(F," -S, --sparse handle sparse files efficiently\n");
257 rprintf(F," -n, --dry-run show what would have been transferred\n");
258 rprintf(F," -W, --whole-file copy whole files, no incremental checks\n");
259 rprintf(F," --no-whole-file turn off --whole-file\n");
260 rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
261 rprintf(F," -B, --block-size=SIZE force a fixed checksum block-size\n");
262 rprintf(F," -e, --rsh=COMMAND specify the remote shell\n");
263 rprintf(F," --rsync-path=PATH specify path to rsync on the remote machine\n");
264 rprintf(F," --existing only update files that already exist\n");
265 rprintf(F," --ignore-existing ignore files that already exist on receiving side\n");
266 rprintf(F," --delete delete files that don't exist on the sending side\n");
267 rprintf(F," --delete-excluded also delete excluded files on the receiving side\n");
268 rprintf(F," --delete-after receiver deletes after transferring, not before\n");
269 rprintf(F," --ignore-errors delete even if there are I/O errors\n");
270 rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
271 rprintf(F," --partial keep partially transferred files\n");
272 rprintf(F," --partial-dir=DIR put a partially transferred file into DIR\n");
273 rprintf(F," --force force deletion of directories even if not empty\n");
274 rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
275 rprintf(F," --timeout=TIME set I/O timeout in seconds\n");
276 rprintf(F," -I, --ignore-times turn off mod time & file size quick check\n");
277 rprintf(F," --size-only ignore mod time for quick check (use size)\n");
278 rprintf(F," --modify-window=NUM compare mod times with reduced accuracy\n");
279 rprintf(F," -T, --temp-dir=DIR create temporary files in directory DIR\n");
280 rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
281 rprintf(F," --link-dest=DIR create hardlinks to DIR for unchanged files\n");
282 rprintf(F," -P equivalent to --partial --progress\n");
283 rprintf(F," -z, --compress compress file data\n");
284 rprintf(F," -C, --cvs-exclude auto ignore files in the same way CVS does\n");
285 rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
286 rprintf(F," --exclude-from=FILE exclude patterns listed in FILE\n");
287 rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
288 rprintf(F," --include-from=FILE don't exclude patterns listed in FILE\n");
289 rprintf(F," --files-from=FILE read FILE for list of source-file names\n");
290 rprintf(F," -0, --from0 all *-from file lists are delimited by nulls\n");
291 rprintf(F," --version print version number\n");
292 rprintf(F," --daemon run as an rsync daemon\n");
293 rprintf(F," --no-detach do not detach from the parent\n");
294 rprintf(F," --address=ADDRESS bind to the specified address\n");
295 rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
296 rprintf(F," --port=PORT specify alternate rsyncd port number\n");
297 rprintf(F," --blocking-io use blocking I/O for the remote shell\n");
298 rprintf(F," --no-blocking-io turn off --blocking-io\n");
299 rprintf(F," --stats give some file transfer stats\n");
300 rprintf(F," --progress show progress during transfer\n");
301 rprintf(F," --log-format=FORMAT log file transfers using specified format\n");
302 rprintf(F," --password-file=FILE get password from FILE\n");
303 rprintf(F," --bwlimit=KBPS limit I/O bandwidth, KBytes per second\n");
304 rprintf(F," --write-batch=FILE write a batch to FILE\n");
305 rprintf(F," --read-batch=FILE read a batch from FILE\n");
306 rprintf(F," --checksum-seed=NUM set block/file checksum seed\n");
308 rprintf(F," -4, --ipv4 prefer IPv4\n");
309 rprintf(F," -6, --ipv6 prefer IPv6\n");
311 rprintf(F," -h, --help show this help screen\n");
315 rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
316 rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
319 enum {OPT_VERSION = 1000, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
320 OPT_DELETE_AFTER, OPT_DELETE_EXCLUDED, OPT_LINK_DEST,
321 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW,
322 OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_TIMEOUT,
323 OPT_REFUSED_BASE = 9000};
325 static struct poptOption long_options[] = {
326 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
327 {"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0},
328 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
329 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
330 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
331 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 },
332 {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 },
333 {"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
334 {"one-file-system", 'x', POPT_ARG_NONE, &one_file_system, 0, 0, 0 },
335 {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
336 {"existing", 0, POPT_ARG_NONE, &only_existing, 0, 0, 0 },
337 {"ignore-existing", 0, POPT_ARG_NONE, &opt_ignore_existing, 0, 0, 0 },
338 {"delete-after", 0, POPT_ARG_NONE, 0, OPT_DELETE_AFTER, 0, 0 },
339 {"delete-excluded", 0, POPT_ARG_NONE, 0, OPT_DELETE_EXCLUDED, 0, 0 },
340 {"force", 0, POPT_ARG_NONE, &force_delete, 0, 0, 0 },
341 {"numeric-ids", 0, POPT_ARG_NONE, &numeric_ids, 0, 0, 0 },
342 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
343 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
344 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
345 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
346 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
347 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
348 {"backup", 'b', POPT_ARG_NONE, &make_backups, 0, 0, 0 },
349 {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
350 {"sparse", 'S', POPT_ARG_NONE, &sparse_files, 0, 0, 0 },
351 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
352 {"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 },
353 {"inplace", 0, POPT_ARG_NONE, &inplace, 0, 0, 0 },
354 {"keep-dirlinks", 'K', POPT_ARG_NONE, &keep_dirlinks, 0, 0, 0 },
355 {"links", 'l', POPT_ARG_NONE, &preserve_links, 0, 0, 0 },
356 {"copy-links", 'L', POPT_ARG_NONE, ©_links, 0, 0, 0 },
357 {"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
358 {"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
359 {"copy-unsafe-links", 0, POPT_ARG_NONE, ©_unsafe_links, 0, 0, 0 },
360 {"perms", 'p', POPT_ARG_NONE, &preserve_perms, 0, 0, 0 },
361 {"owner", 'o', POPT_ARG_NONE, &preserve_uid, 0, 0, 0 },
362 {"group", 'g', POPT_ARG_NONE, &preserve_gid, 0, 0, 0 },
363 {"devices", 'D', POPT_ARG_NONE, &preserve_devices, 0, 0, 0 },
364 {"times", 't', POPT_ARG_NONE, &preserve_times, 0, 0, 0 },
365 {"checksum", 'c', POPT_ARG_NONE, &always_checksum, 0, 0, 0 },
366 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
367 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
368 {"archive", 'a', POPT_ARG_NONE, &archive_mode, 0, 0, 0 },
369 {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
370 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
371 {"recursive", 'r', POPT_ARG_NONE, &recurse, 0, 0, 0 },
372 {"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 },
373 {"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
374 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
375 {"block-size", 'B', POPT_ARG_INT, &block_size, 0, 0, 0 },
376 {"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
377 {"timeout", 0, POPT_ARG_INT, &io_timeout, OPT_TIMEOUT, 0, 0 },
378 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
379 {"compare-dest", 0, POPT_ARG_STRING, &compare_dest, 0, 0, 0 },
380 {"link-dest", 0, POPT_ARG_STRING, &compare_dest, OPT_LINK_DEST, 0, 0 },
381 /* TODO: Should this take an optional int giving the compression level? */
382 {"compress", 'z', POPT_ARG_NONE, &do_compression, 0, 0, 0 },
383 {"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
384 {"no-detach", 0, POPT_ARG_NONE, &no_detach, 0, 0, 0 },
385 {"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
386 {"progress", 0, POPT_ARG_NONE, &do_progress, 0, 0, 0 },
387 {"partial", 0, POPT_ARG_NONE, &keep_partial, 0, 0, 0 },
388 {"partial-dir", 0, POPT_ARG_STRING, &partial_dir, 0, 0, 0 },
389 {"ignore-errors", 0, POPT_ARG_NONE, &ignore_errors, 0, 0, 0 },
390 {"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
391 {"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
392 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
393 {"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
394 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
395 {"log-format", 0, POPT_ARG_STRING, &log_format, 0, 0, 0 },
396 {"bwlimit", 0, POPT_ARG_INT, &bwlimit, 0, 0, 0 },
397 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
398 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
399 {"hard-links", 'H', POPT_ARG_NONE, &preserve_hard_links, 0, 0, 0 },
400 {"read-batch", 0, POPT_ARG_STRING, &batch_name, OPT_READ_BATCH, 0, 0 },
401 {"write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_WRITE_BATCH, 0, 0 },
402 {"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
403 {"from0", '0', POPT_ARG_NONE, &eol_nulls, 0, 0, 0},
404 {"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
405 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
406 {"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 },
408 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
409 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
415 static char err_buf[200];
419 * Store the option error message, if any, so that we can log the
420 * connection attempt (which requires parsing the options), and then
421 * show the error later on.
423 void option_error(void)
426 strcpy(err_buf, "Error parsing options: "
427 "option may be supported on client but not on server?\n");
430 rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
435 * Tweak the option table to disable all options that the rsyncd.conf
436 * file has told us to refuse.
438 static void set_refuse_options(char *bp)
440 struct poptOption *op;
441 char *cp, shortname[2];
442 int is_wild, found_match;
447 while (*bp == ' ') bp++;
450 if ((cp = strchr(bp, ' ')) != NULL)
452 /* If they specify "delete", reject all delete options. */
453 if (strcmp(bp, "delete") == 0)
455 is_wild = strpbrk(bp, "*?[") != NULL;
457 for (op = long_options; ; op++) {
458 *shortname = op->shortName;
459 if (!op->longName && !*shortname)
461 if ((op->longName && wildmatch(bp, op->longName))
462 || (*shortname && wildmatch(bp, shortname))) {
463 op->val = (op - long_options) + OPT_REFUSED_BASE;
470 rprintf(FLOG, "No match for refuse-options string \"%s\"\n",
481 static int count_args(const char **argv)
486 while (argv[i] != NULL)
495 * Process command line arguments. Called on both local and remote.
497 * @retval 1 if all options are OK; with globals set to appropriate
500 * @retval 0 on error, with err_buf containing an explanation
502 int parse_arguments(int *argc, const char ***argv, int frommain)
505 char *ref = lp_refuse_options(module_id);
510 set_refuse_options(ref);
512 /* TODO: Call poptReadDefaultConfig; handle errors. */
514 /* The context leaks in case of an error, but if there's a
515 * problem we always exit anyhow. */
516 pc = poptGetContext(RSYNC_NAME, *argc, *argv, long_options, 0);
518 while ((opt = poptGetNextOpt(pc)) != -1) {
519 /* most options are handled automatically by popt;
520 * only special cases are returned and listed here. */
524 print_rsync_version(FINFO);
527 case OPT_MODIFY_WINDOW:
528 /* The value has already been set by popt, but
529 * we need to remember that we're using a
530 * non-default setting. */
531 modify_window_set = 1;
534 case OPT_DELETE_AFTER:
539 case OPT_DELETE_EXCLUDED:
545 add_exclude(&exclude_list, poptGetOptArg(pc), 0);
549 add_exclude(&exclude_list, poptGetOptArg(pc),
553 case OPT_EXCLUDE_FROM:
554 case OPT_INCLUDE_FROM:
555 arg = poptGetOptArg(pc);
557 arg = sanitize_path(NULL, arg, NULL, 0);
558 if (server_exclude_list.head) {
559 char *cp = (char *)arg;
561 if (check_exclude(&server_exclude_list, cp, 0) < 0)
562 goto options_rejected;
564 add_exclude_file(&exclude_list, arg, XFLG_FATAL_ERRORS
565 | (opt == OPT_INCLUDE_FROM
566 ? XFLG_DEF_INCLUDE : 0));
585 exit_cleanup(RERR_SYNTAX);
595 case OPT_WRITE_BATCH:
596 /* batch_name is already set */
601 /* batch_name is already set */
606 if (io_timeout && io_timeout < select_timeout)
607 select_timeout = io_timeout;
615 snprintf(err_buf, sizeof err_buf,
616 "hard links are not supported on this %s\n",
617 am_server ? "server" : "client");
622 /* A large opt value means that set_refuse_options()
623 * turned this option off (opt-BASE is its index). */
624 if (opt >= OPT_REFUSED_BASE) {
625 struct poptOption *op =
626 &long_options[opt-OPT_REFUSED_BASE];
627 int n = snprintf(err_buf, sizeof err_buf,
628 "The server is configured to refuse --%s\n",
631 snprintf(err_buf+n, sizeof err_buf-n,
632 " (-%c)\n", op->shortName);
635 snprintf(err_buf, sizeof err_buf, "%s%s: %s\n",
636 am_server ? "on remote machine: " : "",
637 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
645 if (preserve_links && !am_sender) {
646 snprintf(err_buf, sizeof err_buf,
647 "symlinks are not supported on this %s\n",
648 am_server ? "server" : "client");
653 #if !SUPPORT_HARD_LINKS
654 if (preserve_hard_links) {
655 snprintf(err_buf, sizeof err_buf,
656 "hard links are not supported on this %s\n",
657 am_server ? "server" : "client");
662 if (write_batch && read_batch) {
663 snprintf(err_buf, sizeof err_buf,
664 "--write-batch and --read-batch can not be used together\n");
667 if (write_batch || read_batch) {
669 snprintf(err_buf, sizeof err_buf,
670 "--%s-batch cannot be used with --dry_run (-n)\n",
671 write_batch ? "write" : "read");
676 "ignoring --%s-batch option sent to server\n",
677 write_batch ? "write" : "read");
678 /* We don't actually exit_cleanup(), so that we can
679 * still service older version clients that still send
680 * batch args to server. */
681 read_batch = write_batch = 0;
685 if (read_batch && files_from) {
686 snprintf(err_buf, sizeof err_buf,
687 "--read-batch cannot be used with --files-from\n");
690 if (batch_name && strlen(batch_name) > MAX_BATCH_NAME_LEN) {
691 snprintf(err_buf, sizeof err_buf,
692 "the batch-file name must be %d characters or less.\n",
697 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
698 snprintf(err_buf, sizeof err_buf,
699 "the --temp-dir path is WAY too long.\n");
713 preserve_devices = 1;
716 if (relative_paths < 0)
717 relative_paths = files_from? 1 : 0;
719 *argv = poptGetArgs(pc);
720 *argc = count_args(*argv);
722 if (sanitize_paths) {
724 for (i = *argc; i-- > 0; )
725 (*argv)[i] = sanitize_path(NULL, (*argv)[i], "", 0);
727 tmpdir = sanitize_path(NULL, tmpdir, NULL, 0);
729 partial_dir = sanitize_path(NULL, partial_dir, NULL, 0);
731 compare_dest = sanitize_path(NULL, compare_dest, NULL, 0);
733 backup_dir = sanitize_path(NULL, backup_dir, NULL, 0);
735 files_from = sanitize_path(NULL, files_from, NULL, 0);
737 if (server_exclude_list.head && !am_sender) {
738 struct exclude_list_struct *elp = &server_exclude_list;
740 clean_fname(tmpdir, 1);
741 if (check_exclude(elp, tmpdir, 1) < 0)
742 goto options_rejected;
745 clean_fname(partial_dir, 1);
746 if (check_exclude(elp, partial_dir, 1) < 0)
747 goto options_rejected;
750 clean_fname(compare_dest, 1);
751 if (check_exclude(elp, compare_dest, 1) < 0)
752 goto options_rejected;
755 clean_fname(backup_dir, 1);
756 if (check_exclude(elp, backup_dir, 1) < 0)
757 goto options_rejected;
760 if (server_exclude_list.head && files_from) {
761 clean_fname(files_from, 1);
762 if (check_exclude(&server_exclude_list, files_from, 0) < 0) {
764 snprintf(err_buf, sizeof err_buf,
765 "Your options have been rejected by the server.\n");
777 backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
778 backup_suffix_len = strlen(backup_suffix);
779 if (strchr(backup_suffix, '/') != NULL) {
780 snprintf(err_buf, sizeof err_buf,
781 "--suffix cannot contain slashes: %s\n",
786 backup_dir_len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
787 backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
788 if (backup_dir_remainder < 32) {
789 snprintf(err_buf, sizeof err_buf,
790 "the --backup-dir path is WAY too long.\n");
793 if (backup_dir_buf[backup_dir_len - 1] != '/') {
794 backup_dir_buf[backup_dir_len++] = '/';
795 backup_dir_buf[backup_dir_len] = '\0';
797 if (verbose > 1 && !am_sender)
798 rprintf(FINFO, "backup_dir is %s\n", backup_dir_buf);
799 } else if (!backup_suffix_len && (!am_server || !am_sender)) {
800 snprintf(err_buf, sizeof err_buf,
801 "--suffix cannot be a null string without --backup-dir\n");
805 if (do_progress && !verbose)
809 bwlimit_writemax = (size_t)bwlimit * 128;
810 if (bwlimit_writemax < 512)
811 bwlimit_writemax = 512;
817 snprintf(err_buf, sizeof err_buf,
818 "--inplace cannot be used with --partial-dir\n");
823 snprintf(err_buf, sizeof err_buf,
824 "--inplace is not supported on this %s\n",
825 am_server ? "server" : "client");
829 snprintf(err_buf, sizeof err_buf,
830 "--inplace does not yet work with %s\n",
831 link_dest ? "--link-dest" : "--compare-dest");
835 if (keep_partial && !partial_dir)
836 partial_dir = getenv("RSYNC_PARTIAL_DIR");
838 if (!*partial_dir || strcmp(partial_dir, ".") == 0)
840 else if (*partial_dir != '/') {
841 add_exclude(&exclude_list, partial_dir,
850 if (*argc > 2 || (!am_daemon && *argc == 1)) {
852 exit_cleanup(RERR_SYNTAX);
854 if (strcmp(files_from, "-") == 0) {
857 remote_filesfrom_file = "-";
859 else if ((colon = find_colon(files_from)) != 0) {
862 exit_cleanup(RERR_SYNTAX);
864 remote_filesfrom_file = colon+1 + (colon[1] == ':');
865 if (strcmp(remote_filesfrom_file, "-") == 0) {
866 snprintf(err_buf, sizeof err_buf,
867 "Invalid --files-from remote filename\n");
871 filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
872 if (filesfrom_fd < 0) {
873 snprintf(err_buf, sizeof err_buf,
874 "failed to open files-from file %s: %s\n",
875 files_from, strerror(errno));
886 * Construct a filtered list of options to pass through from the
887 * client to the server.
889 * This involves setting options that will tell the server how to
890 * behave, and also filtering out options that are processed only
893 void server_options(char **args,int *argc)
896 static char argstr[50];
901 if (blocking_io == -1)
904 args[ac++] = "--server";
906 if (daemon_over_rsh) {
907 args[ac++] = "--daemon";
909 /* if we're passing --daemon, we're done */
914 args[ac++] = "--sender";
918 for (i = 0; i < verbose; i++)
921 /* the -q option is intentionally left out */
932 if (keep_dirlinks && am_sender)
937 /* We don't need to send --no-whole-file, because it's the
938 * default for remote transfers, and in any case old versions
939 * of rsync will not understand it. */
941 if (preserve_hard_links)
947 if (preserve_devices)
970 /* this is a complete hack - blame Rusty
972 this is a hack to make the list_only (remote file list)
974 if (list_only && !recurse)
983 if (asprintf(&arg, "-B%u", block_size) < 0)
988 if (max_delete && am_sender) {
989 if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
995 if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
1001 if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
1007 args[ac++] = "--backup-dir";
1008 args[ac++] = backup_dir;
1011 /* Only send --suffix if it specifies a non-default value. */
1012 if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
1013 /* We use the following syntax to avoid weirdness with '~'. */
1014 if (asprintf(&arg, "--suffix=%s", backup_suffix) < 0)
1020 if (delete_excluded)
1021 args[ac++] = "--delete-excluded";
1022 else if (delete_mode)
1023 args[ac++] = "--delete";
1026 args[ac++] = "--delete-after";
1029 args[ac++] = "--force";
1033 args[ac++] = "--size-only";
1035 if (modify_window_set) {
1036 if (asprintf(&arg, "--modify-window=%d", modify_window) < 0)
1041 if (checksum_seed) {
1042 if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
1047 if (partial_dir && am_sender) {
1048 args[ac++] = "--partial-dir";
1049 args[ac++] = partial_dir;
1050 } else if (keep_partial)
1051 args[ac++] = "--partial";
1054 args[ac++] = "--ignore-errors";
1056 if (copy_unsafe_links)
1057 args[ac++] = "--copy-unsafe-links";
1060 args[ac++] = "--safe-links";
1063 args[ac++] = "--numeric-ids";
1065 if (only_existing && am_sender)
1066 args[ac++] = "--existing";
1068 if (opt_ignore_existing && am_sender)
1069 args[ac++] = "--ignore-existing";
1072 args[ac++] = "--inplace";
1075 args[ac++] = "--temp-dir";
1076 args[ac++] = tmpdir;
1079 if (compare_dest && am_sender) {
1080 /* the server only needs this option if it is not the sender,
1081 * and it may be an older version that doesn't know this
1082 * option, so don't send it if client is the sender.
1084 args[ac++] = link_dest ? "--link-dest" : "--compare-dest";
1085 args[ac++] = compare_dest;
1088 if (files_from && (!am_sender || remote_filesfrom_file)) {
1089 if (remote_filesfrom_file) {
1090 args[ac++] = "--files-from";
1091 args[ac++] = remote_filesfrom_file;
1093 args[ac++] = "--from0";
1095 args[ac++] = "--files-from=-";
1096 args[ac++] = "--from0";
1104 out_of_memory("server_options");
1108 * Return the position of a ':' IF it is not part of a filename (i.e. as
1109 * long as it doesn't occur after a slash.
1111 char *find_colon(char *s)
1119 /* now check to see if there is a / in the string before the : - if there is then
1120 discard the colon on the assumption that the : is part of a filename */