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()
42 int preserve_links = 0;
43 int preserve_hard_links = 0;
44 int preserve_perms = 0;
45 int preserve_devices = 0;
48 int preserve_times = 0;
55 int delete_excluded = 0;
56 int one_file_system = 0;
57 int protocol_version = PROTOCOL_VERSION;
59 int do_compression = 0;
62 int relative_paths = -1;
72 char *files_from = NULL;
73 int filesfrom_fd = -1;
74 char *remote_filesfrom_file = NULL;
78 int daemon_over_rsh = 0;
82 int safe_symlinks = 0;
83 int copy_unsafe_links = 0;
86 size_t bwlimit_writemax = 0;
88 int only_existing = 0;
89 int opt_ignore_existing = 0;
91 int ignore_errors = 0;
92 int modify_window = 0;
94 int checksum_seed = 0;
95 unsigned int block_size = 0;
98 /** Network address family. **/
100 int default_af_hint = 0; /* Any protocol */
102 int default_af_hint = AF_INET; /* Must use IPv4 */
105 /** Do not go into the background when run as --daemon. Good
106 * for debugging and required for running as a service on W32,
107 * or under Unix process-monitors. **/
112 int backup_dir_len = 0;
113 int backup_suffix_len;
114 unsigned int backup_dir_remainder;
116 char *backup_suffix = NULL;
118 char *compare_dest = NULL;
119 char *config_file = NULL;
120 char *shell_cmd = NULL;
121 char *log_format = NULL;
122 char *password_file = NULL;
123 char *rsync_path = RSYNC_PATH;
124 char *backup_dir = NULL;
125 char backup_dir_buf[MAXPATHLEN];
126 int rsync_port = RSYNC_PORT;
131 int always_checksum = 0;
134 #define FIXED_CHECKSUM_SEED 32761
135 #define MAX_BATCH_PREFIX_LEN 256 /* Must be less than MAXPATHLEN-13 */
136 char *batch_prefix = NULL;
138 static int daemon_opt; /* sets am_daemon after option error-reporting */
139 static int modify_window_set;
141 /** Local address to bind. As a character string because it's
142 * interpreted by the IPv6 layer: should be a numeric IP4 or ip6
143 * address, or a hostname. **/
147 static void print_rsync_version(enum logcode f)
149 char const *got_socketpair = "no ";
150 char const *hardlinks = "no ";
151 char const *links = "no ";
152 char const *ipv6 = "no ";
153 STRUCT_STAT *dumstat;
155 #ifdef HAVE_SOCKETPAIR
159 #if SUPPORT_HARD_LINKS
171 rprintf(f, "%s version %s protocol version %d\n",
172 RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION);
174 "Copyright (C) 1996-2004 by Andrew Tridgell and others\n");
175 rprintf(f, "<http://rsync.samba.org/>\n");
176 rprintf(f, "Capabilities: %d-bit files, %ssocketpairs, "
177 "%shard links, %ssymlinks, batchfiles, \n",
178 (int) (sizeof (OFF_T) * 8),
179 got_socketpair, hardlinks, links);
181 /* Note that this field may not have type ino_t. It depends
182 * on the complicated interaction between largefile feature
184 rprintf(f, " %sIPv6, %d-bit system inums, %d-bit internal inums\n",
186 (int) (sizeof dumstat->st_ino * 8),
187 (int) (sizeof (uint64) * 8));
188 #ifdef MAINTAINER_MODE
189 rprintf(f, " panic action: \"%s\"\n",
194 rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
199 "rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n"
200 "are welcome to redistribute it under certain conditions. See the GNU\n"
201 "General Public Licence for details.\n"
206 void usage(enum logcode F)
208 print_rsync_version(F);
210 rprintf(F,"\nrsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");
212 rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
213 rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC DEST\n");
214 rprintf(F," or rsync [OPTION]... SRC [SRC]... DEST\n");
215 rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
216 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
217 rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
218 rprintf(F," or rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST\n");
219 rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n");
220 rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n");
221 rprintf(F," sources separated by space as long as they have same top-level\n");
222 rprintf(F,"\nOptions\n");
223 rprintf(F," -v, --verbose increase verbosity\n");
224 rprintf(F," -q, --quiet decrease verbosity\n");
225 rprintf(F," -c, --checksum always checksum\n");
226 rprintf(F," -a, --archive archive mode, equivalent to -rlptgoD\n");
227 rprintf(F," -r, --recursive recurse into directories\n");
228 rprintf(F," -R, --relative use relative path names\n");
229 rprintf(F," --no-relative turn off --relative\n");
230 rprintf(F," --no-implied-dirs don't send implied dirs with -R\n");
231 rprintf(F," -b, --backup make backups (see --suffix & --backup-dir)\n");
232 rprintf(F," --backup-dir make backups into this directory\n");
233 rprintf(F," --suffix=SUFFIX backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX);
234 rprintf(F," -u, --update update only (don't overwrite newer files)\n");
235 rprintf(F," -l, --links copy symlinks as symlinks\n");
236 rprintf(F," -L, --copy-links copy the referent of all symlinks\n");
237 rprintf(F," --copy-unsafe-links copy the referent of \"unsafe\" symlinks\n");
238 rprintf(F," --safe-links ignore \"unsafe\" symlinks\n");
239 rprintf(F," -H, --hard-links preserve hard links\n");
240 rprintf(F," -p, --perms preserve permissions\n");
241 rprintf(F," -o, --owner preserve owner (root only)\n");
242 rprintf(F," -g, --group preserve group\n");
243 rprintf(F," -D, --devices preserve devices (root only)\n");
244 rprintf(F," -t, --times preserve times\n");
245 rprintf(F," -S, --sparse handle sparse files efficiently\n");
246 rprintf(F," -n, --dry-run show what would have been transferred\n");
247 rprintf(F," -W, --whole-file copy whole files, no incremental checks\n");
248 rprintf(F," --no-whole-file turn off --whole-file\n");
249 rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
250 rprintf(F," -B, --block-size=SIZE checksum blocking size (default %d)\n",BLOCK_SIZE);
251 rprintf(F," -e, --rsh=COMMAND specify the remote shell\n");
252 rprintf(F," --rsync-path=PATH specify path to rsync on the remote machine\n");
253 rprintf(F," --existing only update files that already exist\n");
254 rprintf(F," --ignore-existing ignore files that already exist on receiving side\n");
255 rprintf(F," --delete delete files that don't exist on the sending side\n");
256 rprintf(F," --delete-excluded also delete excluded files on the receiving side\n");
257 rprintf(F," --delete-after receiver deletes after transferring, not before\n");
258 rprintf(F," --ignore-errors delete even if there are I/O errors\n");
259 rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
260 rprintf(F," --partial keep partially transferred files\n");
261 rprintf(F," --force force deletion of directories even if not empty\n");
262 rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
263 rprintf(F," --timeout=TIME set I/O timeout in seconds\n");
264 rprintf(F," -I, --ignore-times turn off mod time & file size quick check\n");
265 rprintf(F," --size-only ignore mod time for quick check (use size)\n");
266 rprintf(F," --modify-window=NUM compare mod times with reduced accuracy\n");
267 rprintf(F," -T --temp-dir=DIR create temporary files in directory DIR\n");
268 rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
269 rprintf(F," --link-dest=DIR create hardlinks to DIR for unchanged files\n");
270 rprintf(F," -P equivalent to --partial --progress\n");
271 rprintf(F," -z, --compress compress file data\n");
272 rprintf(F," -C, --cvs-exclude auto ignore files in the same way CVS does\n");
273 rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
274 rprintf(F," --exclude-from=FILE exclude patterns listed in FILE\n");
275 rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
276 rprintf(F," --include-from=FILE don't exclude patterns listed in FILE\n");
277 rprintf(F," --files-from=FILE read FILE for list of source-file names\n");
278 rprintf(F," -0 --from0 all *-from file lists are delimited by nulls\n");
279 rprintf(F," --version print version number\n");
280 rprintf(F," --daemon run as an rsync daemon\n");
281 rprintf(F," --no-detach do not detach from the parent\n");
282 rprintf(F," --address=ADDRESS bind to the specified address\n");
283 rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
284 rprintf(F," --port=PORT specify alternate rsyncd port number\n");
285 rprintf(F," --blocking-io use blocking I/O for the remote shell\n");
286 rprintf(F," --no-blocking-io turn off --blocking-io\n");
287 rprintf(F," --stats give some file transfer stats\n");
288 rprintf(F," --progress show progress during transfer\n");
289 rprintf(F," --log-format=FORMAT log file transfers using specified format\n");
290 rprintf(F," --password-file=FILE get password from FILE\n");
291 rprintf(F," --bwlimit=KBPS limit I/O bandwidth, KBytes per second\n");
292 rprintf(F," --write-batch=PREFIX write batch fileset starting with PREFIX\n");
293 rprintf(F," --read-batch=PREFIX read batch fileset starting with PREFIX\n");
294 rprintf(F," --checksum-seed=NUM set block/file checksum seed\n");
296 rprintf(F," -4 --ipv4 prefer IPv4\n");
297 rprintf(F," -6 --ipv6 prefer IPv6\n");
299 rprintf(F," -h, --help show this help screen\n");
303 rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
304 rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
307 enum {OPT_VERSION = 1000, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
308 OPT_DELETE_AFTER, OPT_DELETE_EXCLUDED, OPT_LINK_DEST,
309 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW,
310 OPT_READ_BATCH, OPT_WRITE_BATCH,
311 OPT_REFUSED_BASE = 9000};
313 static struct poptOption long_options[] = {
314 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
315 {"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0},
316 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
317 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
318 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
319 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 },
320 {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 },
321 {"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
322 {"one-file-system", 'x', POPT_ARG_NONE, &one_file_system, 0, 0, 0 },
323 {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
324 {"existing", 0, POPT_ARG_NONE, &only_existing, 0, 0, 0 },
325 {"ignore-existing", 0, POPT_ARG_NONE, &opt_ignore_existing, 0, 0, 0 },
326 {"delete-after", 0, POPT_ARG_NONE, 0, OPT_DELETE_AFTER, 0, 0 },
327 {"delete-excluded", 0, POPT_ARG_NONE, 0, OPT_DELETE_EXCLUDED, 0, 0 },
328 {"force", 0, POPT_ARG_NONE, &force_delete, 0, 0, 0 },
329 {"numeric-ids", 0, POPT_ARG_NONE, &numeric_ids, 0, 0, 0 },
330 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
331 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
332 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
333 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
334 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
335 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
336 {"backup", 'b', POPT_ARG_NONE, &make_backups, 0, 0, 0 },
337 {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
338 {"sparse", 'S', POPT_ARG_NONE, &sparse_files, 0, 0, 0 },
339 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
340 {"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 },
341 {"links", 'l', POPT_ARG_NONE, &preserve_links, 0, 0, 0 },
342 {"copy-links", 'L', POPT_ARG_NONE, ©_links, 0, 0, 0 },
343 {"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
344 {"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
345 {"copy-unsafe-links", 0, POPT_ARG_NONE, ©_unsafe_links, 0, 0, 0 },
346 {"perms", 'p', POPT_ARG_NONE, &preserve_perms, 0, 0, 0 },
347 {"owner", 'o', POPT_ARG_NONE, &preserve_uid, 0, 0, 0 },
348 {"group", 'g', POPT_ARG_NONE, &preserve_gid, 0, 0, 0 },
349 {"devices", 'D', POPT_ARG_NONE, &preserve_devices, 0, 0, 0 },
350 {"times", 't', POPT_ARG_NONE, &preserve_times, 0, 0, 0 },
351 {"checksum", 'c', POPT_ARG_NONE, &always_checksum, 0, 0, 0 },
352 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
353 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
354 {"archive", 'a', POPT_ARG_NONE, &archive_mode, 0, 0, 0 },
355 {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
356 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
357 {"recursive", 'r', POPT_ARG_NONE, &recurse, 0, 0, 0 },
358 {"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 },
359 {"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
360 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
361 {"block-size", 'B', POPT_ARG_INT, &block_size, 0, 0, 0 },
362 {"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
363 {"timeout", 0, POPT_ARG_INT, &io_timeout, 0, 0, 0 },
364 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
365 {"compare-dest", 0, POPT_ARG_STRING, &compare_dest, 0, 0, 0 },
366 {"link-dest", 0, POPT_ARG_STRING, &compare_dest, OPT_LINK_DEST, 0, 0 },
367 /* TODO: Should this take an optional int giving the compression level? */
368 {"compress", 'z', POPT_ARG_NONE, &do_compression, 0, 0, 0 },
369 {"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
370 {"no-detach", 0, POPT_ARG_NONE, &no_detach, 0, 0, 0 },
371 {"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
372 {"progress", 0, POPT_ARG_NONE, &do_progress, 0, 0, 0 },
373 {"partial", 0, POPT_ARG_NONE, &keep_partial, 0, 0, 0 },
374 {"ignore-errors", 0, POPT_ARG_NONE, &ignore_errors, 0, 0, 0 },
375 {"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
376 {"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
377 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
378 {"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
379 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
380 {"log-format", 0, POPT_ARG_STRING, &log_format, 0, 0, 0 },
381 {"bwlimit", 0, POPT_ARG_INT, &bwlimit, 0, 0, 0 },
382 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
383 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
384 {"hard-links", 'H', POPT_ARG_NONE, &preserve_hard_links, 0, 0, 0 },
385 {"read-batch", 0, POPT_ARG_STRING, &batch_prefix, OPT_READ_BATCH, 0, 0 },
386 {"write-batch", 0, POPT_ARG_STRING, &batch_prefix, OPT_WRITE_BATCH, 0, 0 },
387 {"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
388 {"from0", '0', POPT_ARG_NONE, &eol_nulls, 0, 0, 0},
389 {"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
390 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
391 {"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 },
393 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
394 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
400 static char err_buf[200];
404 * Store the option error message, if any, so that we can log the
405 * connection attempt (which requires parsing the options), and then
406 * show the error later on.
408 void option_error(void)
410 int save_daemon = am_daemon;
413 strcpy(err_buf, "Error parsing options: "
414 "option may be supported on client but not on server?\n");
417 rwrite(FLOG, err_buf, strlen(err_buf));
419 rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
420 am_daemon = save_daemon;
425 * Tweak the option table to disable all options that the rsyncd.conf
426 * file has told us to refuse.
428 static void set_refuse_options(char *bp)
430 struct poptOption *op;
434 if ((cp = strchr(bp, ' ')) != NULL)
436 for (op = long_options; ; op++) {
439 "Unknown option %s in \"refuse options\" setting\n",
443 if (strcmp(bp, op->longName) == 0) {
444 op->val = (op - long_options)+OPT_REFUSED_BASE;
456 static int count_args(char const **argv)
460 while (argv[i] != NULL)
468 * Process command line arguments. Called on both local and remote.
470 * @retval 1 if all options are OK; with globals set to appropriate
473 * @retval 0 on error, with err_buf containing an explanation
475 int parse_arguments(int *argc, const char ***argv, int frommain)
478 char *ref = lp_refuse_options(module_id);
483 set_refuse_options(ref);
485 /* TODO: Call poptReadDefaultConfig; handle errors. */
487 /* The context leaks in case of an error, but if there's a
488 * problem we always exit anyhow. */
489 pc = poptGetContext(RSYNC_NAME, *argc, *argv, long_options, 0);
491 while ((opt = poptGetNextOpt(pc)) != -1) {
492 /* most options are handled automatically by popt;
493 * only special cases are returned and listed here. */
497 print_rsync_version(FINFO);
500 case OPT_MODIFY_WINDOW:
501 /* The value has already been set by popt, but
502 * we need to remember that we're using a
503 * non-default setting. */
504 modify_window_set = 1;
507 case OPT_DELETE_AFTER:
512 case OPT_DELETE_EXCLUDED:
518 if (am_server || sanitize_paths)
519 return 0; /* Impossible... */
520 add_exclude(&exclude_list, poptGetOptArg(pc), 0);
524 if (am_server || sanitize_paths)
525 return 0; /* Impossible... */
526 add_exclude(&exclude_list, poptGetOptArg(pc),
530 case OPT_EXCLUDE_FROM:
531 if (am_server || sanitize_paths)
532 return 0; /* Impossible... */
533 arg = poptGetOptArg(pc);
534 add_exclude_file(&exclude_list, arg,
538 case OPT_INCLUDE_FROM:
539 if (am_server || sanitize_paths)
540 return 0; /* Impossible... */
541 arg = poptGetOptArg(pc);
542 add_exclude_file(&exclude_list, arg,
543 XFLG_FATAL_ERRORS | XFLG_DEF_INCLUDE);
562 exit_cleanup(RERR_SYNTAX);
572 case OPT_WRITE_BATCH:
573 /* popt stores the filename in batch_prefix for us */
575 checksum_seed = FIXED_CHECKSUM_SEED;
579 /* popt stores the filename in batch_prefix for us */
581 checksum_seed = FIXED_CHECKSUM_SEED;
589 snprintf(err_buf, sizeof err_buf,
590 "hard links are not supported on this %s\n",
591 am_server ? "server" : "client");
596 /* A large opt value means that set_refuse_options()
597 * turned this option off (opt-BASE is its index). */
598 if (opt >= OPT_REFUSED_BASE) {
599 struct poptOption *op =
600 &long_options[opt-OPT_REFUSED_BASE];
601 int n = snprintf(err_buf, sizeof err_buf,
602 "This server does not support --%s\n",
605 snprintf(err_buf+n, sizeof err_buf-n,
606 " (-%c)\n", op->shortName);
609 snprintf(err_buf, sizeof err_buf,
611 am_server ? "on remote machine: " : "",
612 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
620 if (preserve_links && !am_sender) {
621 snprintf(err_buf, sizeof err_buf,
622 "symlinks are not supported on this %s\n",
623 am_server ? "server" : "client");
628 #if !SUPPORT_HARD_LINKS
629 if (preserve_hard_links) {
630 snprintf(err_buf, sizeof err_buf,
631 "hard links are not supported on this %s\n",
632 am_server ? "server" : "client");
637 if (write_batch && read_batch) {
639 "write-batch and read-batch can not be used together\n");
640 exit_cleanup(RERR_SYNTAX);
642 if (batch_prefix && strlen(batch_prefix) > MAX_BATCH_PREFIX_LEN) {
644 "the batch-file prefix must be %d characters or less.\n",
645 MAX_BATCH_PREFIX_LEN);
646 exit_cleanup(RERR_SYNTAX);
649 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
650 rprintf(FERROR, "the --temp-dir path is WAY too long.\n");
651 exit_cleanup(RERR_SYNTAX);
654 if (do_compression && (write_batch || read_batch)) {
656 "compress can not be used with write-batch or read-batch\n");
657 exit_cleanup(RERR_SYNTAX);
670 preserve_devices = 1;
673 if (relative_paths < 0)
674 relative_paths = files_from? 1 : 0;
676 *argv = poptGetArgs(pc);
678 *argc = count_args(*argv);
682 if (sanitize_paths) {
684 for (i = *argc; i-- > 0; )
685 (*argv)[i] = alloc_sanitize_path((*argv)[i], NULL);
687 tmpdir = alloc_sanitize_path(tmpdir, curr_dir);
689 compare_dest = alloc_sanitize_path(compare_dest, curr_dir);
691 backup_dir = alloc_sanitize_path(backup_dir, curr_dir);
693 files_from = alloc_sanitize_path(files_from, curr_dir);
703 backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
704 backup_suffix_len = strlen(backup_suffix);
705 if (strchr(backup_suffix, '/') != NULL) {
706 rprintf(FERROR, "--suffix cannot contain slashes: %s\n",
708 exit_cleanup(RERR_SYNTAX);
711 backup_dir_len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
712 backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
713 if (backup_dir_remainder < 32) {
714 rprintf(FERROR, "the --backup-dir path is WAY too long.\n");
715 exit_cleanup(RERR_SYNTAX);
717 if (backup_dir_buf[backup_dir_len - 1] != '/') {
718 backup_dir_buf[backup_dir_len++] = '/';
719 backup_dir_buf[backup_dir_len] = '\0';
721 if (verbose > 1 && !am_sender)
722 rprintf(FINFO, "backup_dir is %s\n", backup_dir_buf);
723 } else if (!backup_suffix_len && (!am_server || !am_sender)) {
725 "--suffix cannot be a null string without --backup-dir\n");
726 exit_cleanup(RERR_SYNTAX);
729 if (do_progress && !verbose)
733 bwlimit_writemax = (size_t)bwlimit * 128;
734 if (bwlimit_writemax < 512)
735 bwlimit_writemax = 512;
740 if (*argc != 2 && !(am_server && am_sender && *argc == 1)) {
742 exit_cleanup(RERR_SYNTAX);
744 if (strcmp(files_from, "-") == 0) {
747 remote_filesfrom_file = "-";
749 else if ((colon = find_colon(files_from)) != 0) {
752 exit_cleanup(RERR_SYNTAX);
754 remote_filesfrom_file = colon+1 + (colon[1] == ':');
755 if (strcmp(remote_filesfrom_file, "-") == 0) {
756 rprintf(FERROR, "Invalid --files-from remote filename\n");
757 exit_cleanup(RERR_SYNTAX);
760 filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
761 if (filesfrom_fd < 0) {
762 rsyserr(FERROR, errno,
763 "failed to open files-from file %s",
765 exit_cleanup(RERR_FILEIO);
775 * Construct a filtered list of options to pass through from the
776 * client to the server.
778 * This involves setting options that will tell the server how to
779 * behave, and also filtering out options that are processed only
782 void server_options(char **args,int *argc)
785 static char argstr[50];
790 if (blocking_io == -1)
793 args[ac++] = "--server";
795 if (daemon_over_rsh) {
796 args[ac++] = "--daemon";
798 /* if we're passing --daemon, we're done */
803 args[ac++] = "--sender";
807 for (i = 0; i < verbose; i++)
810 /* the -q option is intentionally left out */
824 /* We don't need to send --no-whole-file, because it's the
825 * default for remote transfers, and in any case old versions
826 * of rsync will not understand it. */
828 if (preserve_hard_links)
834 if (preserve_devices)
857 /* this is a complete hack - blame Rusty
859 this is a hack to make the list_only (remote file list)
861 if (list_only && !recurse)
870 if (asprintf(&arg, "-B%u", block_size) < 0)
875 if (max_delete && am_sender) {
876 if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
882 char *r_or_w = write_batch ? "write" : "read";
883 if (asprintf(&arg, "--%s-batch=%s", r_or_w, batch_prefix) < 0)
889 if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
895 if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
901 args[ac++] = "--backup-dir";
902 args[ac++] = backup_dir;
905 /* Only send --suffix if it specifies a non-default value. */
906 if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
907 /* We use the following syntax to avoid weirdness with '~'. */
908 if (asprintf(&arg, "--suffix=%s", backup_suffix) < 0)
914 args[ac++] = "--delete-excluded";
915 else if (delete_mode)
916 args[ac++] = "--delete";
919 args[ac++] = "--size-only";
921 if (modify_window_set) {
922 if (asprintf(&arg, "--modify-window=%d", modify_window) < 0)
928 if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
934 args[ac++] = "--partial";
937 args[ac++] = "--force";
940 args[ac++] = "--delete-after";
943 args[ac++] = "--ignore-errors";
945 if (copy_unsafe_links)
946 args[ac++] = "--copy-unsafe-links";
949 args[ac++] = "--safe-links";
952 args[ac++] = "--numeric-ids";
954 if (only_existing && am_sender)
955 args[ac++] = "--existing";
957 if (opt_ignore_existing && am_sender)
958 args[ac++] = "--ignore-existing";
961 args[ac++] = "--temp-dir";
965 if (compare_dest && am_sender) {
966 /* the server only needs this option if it is not the sender,
967 * and it may be an older version that doesn't know this
968 * option, so don't send it if client is the sender.
970 args[ac++] = link_dest ? "--link-dest" : "--compare-dest";
971 args[ac++] = compare_dest;
974 if (files_from && (!am_sender || remote_filesfrom_file)) {
975 if (remote_filesfrom_file) {
976 args[ac++] = "--files-from";
977 args[ac++] = remote_filesfrom_file;
979 args[ac++] = "--from0";
981 args[ac++] = "--files-from=-";
982 args[ac++] = "--from0";
990 out_of_memory("server_options");
994 * Return the position of a ':' IF it is not part of a filename (i.e. as
995 * long as it doesn't occur after a slash.
997 char *find_colon(char *s)
1005 /* now check to see if there is a / in the string before the : - if there is then
1006 discard the colon on the assumption that the : is part of a filename */