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 char curr_dir[MAXPATHLEN];
27 extern struct exclude_list_struct 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;
97 unsigned int block_size = 0;
100 /** Network address family. **/
102 int default_af_hint = 0; /* Any protocol */
104 int default_af_hint = AF_INET; /* Must use IPv4 */
107 /** Do not go into the background when run as --daemon. Good
108 * for debugging and required for running as a service on W32,
109 * or under Unix process-monitors. **/
114 int backup_dir_len = 0;
115 int backup_suffix_len;
116 unsigned int backup_dir_remainder;
118 char *backup_suffix = NULL;
120 char *compare_dest = NULL;
121 char *config_file = NULL;
122 char *shell_cmd = NULL;
123 char *log_format = NULL;
124 char *password_file = NULL;
125 char *rsync_path = RSYNC_PATH;
126 char *backup_dir = NULL;
127 char backup_dir_buf[MAXPATHLEN];
128 int rsync_port = RSYNC_PORT;
133 int always_checksum = 0;
136 #define FIXED_CHECKSUM_SEED 32761
137 #define MAX_BATCH_PREFIX_LEN 256 /* Must be less than MAXPATHLEN-13 */
138 char *batch_prefix = NULL;
140 static int daemon_opt; /* sets am_daemon after option error-reporting */
141 static int modify_window_set;
143 /** Local address to bind. As a character string because it's
144 * interpreted by the IPv6 layer: should be a numeric IP4 or IP6
145 * address, or a hostname. **/
149 static void print_rsync_version(enum logcode f)
151 char const *got_socketpair = "no ";
152 char const *hardlinks = "no ";
153 char const *links = "no ";
154 char const *ipv6 = "no ";
155 STRUCT_STAT *dumstat;
157 #ifdef HAVE_SOCKETPAIR
161 #if SUPPORT_HARD_LINKS
173 rprintf(f, "%s version %s protocol version %d\n",
174 RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION);
176 "Copyright (C) 1996-2004 by Andrew Tridgell and others\n");
177 rprintf(f, "<http://rsync.samba.org/>\n");
178 rprintf(f, "Capabilities: %d-bit files, %ssocketpairs, "
179 "%shard links, %ssymlinks, batchfiles, \n",
180 (int) (sizeof (OFF_T) * 8),
181 got_socketpair, hardlinks, links);
183 /* Note that this field may not have type ino_t. It depends
184 * on the complicated interaction between largefile feature
186 rprintf(f, " %sIPv6, %d-bit system inums, %d-bit internal inums\n",
188 (int) (sizeof dumstat->st_ino * 8),
189 (int) (sizeof (uint64) * 8));
190 #ifdef MAINTAINER_MODE
191 rprintf(f, " panic action: \"%s\"\n",
196 rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
201 "rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n"
202 "are welcome to redistribute it under certain conditions. See the GNU\n"
203 "General Public Licence for details.\n"
208 void usage(enum logcode F)
210 print_rsync_version(F);
212 rprintf(F,"\nrsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");
214 rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
215 rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC DEST\n");
216 rprintf(F," or rsync [OPTION]... SRC [SRC]... DEST\n");
217 rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
218 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
219 rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
220 rprintf(F," or rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST\n");
221 rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n");
222 rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n");
223 rprintf(F," sources separated by space as long as they have same top-level\n");
224 rprintf(F,"\nOptions\n");
225 rprintf(F," -v, --verbose increase verbosity\n");
226 rprintf(F," -q, --quiet decrease verbosity\n");
227 rprintf(F," -c, --checksum always checksum\n");
228 rprintf(F," -a, --archive archive mode, equivalent to -rlptgoD\n");
229 rprintf(F," -r, --recursive recurse into directories\n");
230 rprintf(F," -R, --relative use relative path names\n");
231 rprintf(F," --no-relative turn off --relative\n");
232 rprintf(F," --no-implied-dirs don't send implied dirs with -R\n");
233 rprintf(F," -b, --backup make backups (see --suffix & --backup-dir)\n");
234 rprintf(F," --backup-dir make backups into this directory\n");
235 rprintf(F," --suffix=SUFFIX backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX);
236 rprintf(F," -u, --update update only (don't overwrite newer files)\n");
237 rprintf(F," -K, --keep-dirlinks treat symlinked dir on receiver as dir\n");
238 rprintf(F," -l, --links copy symlinks as symlinks\n");
239 rprintf(F," -L, --copy-links copy the referent of all symlinks\n");
240 rprintf(F," --copy-unsafe-links copy the referent of \"unsafe\" symlinks\n");
241 rprintf(F," --safe-links ignore \"unsafe\" symlinks\n");
242 rprintf(F," -H, --hard-links preserve hard links\n");
243 rprintf(F," -p, --perms preserve permissions\n");
244 rprintf(F," -o, --owner preserve owner (root only)\n");
245 rprintf(F," -g, --group preserve group\n");
246 rprintf(F," -D, --devices preserve devices (root only)\n");
247 rprintf(F," -t, --times preserve times\n");
248 rprintf(F," -S, --sparse handle sparse files efficiently\n");
249 rprintf(F," -n, --dry-run show what would have been transferred\n");
250 rprintf(F," -W, --whole-file copy whole files, no incremental checks\n");
251 rprintf(F," --no-whole-file turn off --whole-file\n");
252 rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
253 rprintf(F," -B, --block-size=SIZE checksum blocking size (default %d)\n",BLOCK_SIZE);
254 rprintf(F," -e, --rsh=COMMAND specify the remote shell\n");
255 rprintf(F," --rsync-path=PATH specify path to rsync on the remote machine\n");
256 rprintf(F," --existing only update files that already exist\n");
257 rprintf(F," --ignore-existing ignore files that already exist on receiving side\n");
258 rprintf(F," --delete delete files that don't exist on the sending side\n");
259 rprintf(F," --delete-excluded also delete excluded files on the receiving side\n");
260 rprintf(F," --delete-after receiver deletes after transferring, not before\n");
261 rprintf(F," --ignore-errors delete even if there are I/O errors\n");
262 rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
263 rprintf(F," --partial keep partially transferred files\n");
264 rprintf(F," --force force deletion of directories even if not empty\n");
265 rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
266 rprintf(F," --timeout=TIME set I/O timeout in seconds\n");
267 rprintf(F," -I, --ignore-times turn off mod time & file size quick check\n");
268 rprintf(F," --size-only ignore mod time for quick check (use size)\n");
269 rprintf(F," --modify-window=NUM compare mod times with reduced accuracy\n");
270 rprintf(F," -T --temp-dir=DIR create temporary files in directory DIR\n");
271 rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
272 rprintf(F," --link-dest=DIR create hardlinks to DIR for unchanged files\n");
273 rprintf(F," -P equivalent to --partial --progress\n");
274 rprintf(F," -z, --compress compress file data\n");
275 rprintf(F," -C, --cvs-exclude auto ignore files in the same way CVS does\n");
276 rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
277 rprintf(F," --exclude-from=FILE exclude patterns listed in FILE\n");
278 rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
279 rprintf(F," --include-from=FILE don't exclude patterns listed in FILE\n");
280 rprintf(F," --files-from=FILE read FILE for list of source-file names\n");
281 rprintf(F," -0 --from0 all *-from file lists are delimited by nulls\n");
282 rprintf(F," --version print version number\n");
283 rprintf(F," --daemon run as an rsync daemon\n");
284 rprintf(F," --no-detach do not detach from the parent\n");
285 rprintf(F," --address=ADDRESS bind to the specified address\n");
286 rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
287 rprintf(F," --port=PORT specify alternate rsyncd port number\n");
288 rprintf(F," --blocking-io use blocking I/O for the remote shell\n");
289 rprintf(F," --no-blocking-io turn off --blocking-io\n");
290 rprintf(F," --stats give some file transfer stats\n");
291 rprintf(F," --progress show progress during transfer\n");
292 rprintf(F," --log-format=FORMAT log file transfers using specified format\n");
293 rprintf(F," --password-file=FILE get password from FILE\n");
294 rprintf(F," --bwlimit=KBPS limit I/O bandwidth, KBytes per second\n");
295 rprintf(F," --write-batch=PREFIX write batch fileset starting with PREFIX\n");
296 rprintf(F," --read-batch=PREFIX read batch fileset starting with PREFIX\n");
297 rprintf(F," --checksum-seed=NUM set block/file checksum seed\n");
299 rprintf(F," -4 --ipv4 prefer IPv4\n");
300 rprintf(F," -6 --ipv6 prefer IPv6\n");
302 rprintf(F," -h, --help show this help screen\n");
306 rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
307 rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
310 enum {OPT_VERSION = 1000, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
311 OPT_DELETE_AFTER, OPT_DELETE_EXCLUDED, OPT_LINK_DEST,
312 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW,
313 OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_TIMEOUT,
314 OPT_REFUSED_BASE = 9000};
316 static struct poptOption long_options[] = {
317 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
318 {"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0},
319 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
320 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
321 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
322 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 },
323 {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 },
324 {"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
325 {"one-file-system", 'x', POPT_ARG_NONE, &one_file_system, 0, 0, 0 },
326 {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
327 {"existing", 0, POPT_ARG_NONE, &only_existing, 0, 0, 0 },
328 {"ignore-existing", 0, POPT_ARG_NONE, &opt_ignore_existing, 0, 0, 0 },
329 {"delete-after", 0, POPT_ARG_NONE, 0, OPT_DELETE_AFTER, 0, 0 },
330 {"delete-excluded", 0, POPT_ARG_NONE, 0, OPT_DELETE_EXCLUDED, 0, 0 },
331 {"force", 0, POPT_ARG_NONE, &force_delete, 0, 0, 0 },
332 {"numeric-ids", 0, POPT_ARG_NONE, &numeric_ids, 0, 0, 0 },
333 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
334 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
335 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
336 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
337 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
338 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
339 {"backup", 'b', POPT_ARG_NONE, &make_backups, 0, 0, 0 },
340 {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
341 {"sparse", 'S', POPT_ARG_NONE, &sparse_files, 0, 0, 0 },
342 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
343 {"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 },
344 {"keep-dirlinks", 'K', POPT_ARG_NONE, &keep_dirlinks, 0, 0, 0 },
345 {"links", 'l', POPT_ARG_NONE, &preserve_links, 0, 0, 0 },
346 {"copy-links", 'L', POPT_ARG_NONE, ©_links, 0, 0, 0 },
347 {"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
348 {"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
349 {"copy-unsafe-links", 0, POPT_ARG_NONE, ©_unsafe_links, 0, 0, 0 },
350 {"perms", 'p', POPT_ARG_NONE, &preserve_perms, 0, 0, 0 },
351 {"owner", 'o', POPT_ARG_NONE, &preserve_uid, 0, 0, 0 },
352 {"group", 'g', POPT_ARG_NONE, &preserve_gid, 0, 0, 0 },
353 {"devices", 'D', POPT_ARG_NONE, &preserve_devices, 0, 0, 0 },
354 {"times", 't', POPT_ARG_NONE, &preserve_times, 0, 0, 0 },
355 {"checksum", 'c', POPT_ARG_NONE, &always_checksum, 0, 0, 0 },
356 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
357 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
358 {"archive", 'a', POPT_ARG_NONE, &archive_mode, 0, 0, 0 },
359 {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
360 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
361 {"recursive", 'r', POPT_ARG_NONE, &recurse, 0, 0, 0 },
362 {"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 },
363 {"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
364 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
365 {"block-size", 'B', POPT_ARG_INT, &block_size, 0, 0, 0 },
366 {"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
367 {"timeout", 0, POPT_ARG_INT, &io_timeout, OPT_TIMEOUT, 0, 0 },
368 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
369 {"compare-dest", 0, POPT_ARG_STRING, &compare_dest, 0, 0, 0 },
370 {"link-dest", 0, POPT_ARG_STRING, &compare_dest, OPT_LINK_DEST, 0, 0 },
371 /* TODO: Should this take an optional int giving the compression level? */
372 {"compress", 'z', POPT_ARG_NONE, &do_compression, 0, 0, 0 },
373 {"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
374 {"no-detach", 0, POPT_ARG_NONE, &no_detach, 0, 0, 0 },
375 {"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
376 {"progress", 0, POPT_ARG_NONE, &do_progress, 0, 0, 0 },
377 {"partial", 0, POPT_ARG_NONE, &keep_partial, 0, 0, 0 },
378 {"ignore-errors", 0, POPT_ARG_NONE, &ignore_errors, 0, 0, 0 },
379 {"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
380 {"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
381 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
382 {"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
383 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
384 {"log-format", 0, POPT_ARG_STRING, &log_format, 0, 0, 0 },
385 {"bwlimit", 0, POPT_ARG_INT, &bwlimit, 0, 0, 0 },
386 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
387 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
388 {"hard-links", 'H', POPT_ARG_NONE, &preserve_hard_links, 0, 0, 0 },
389 {"read-batch", 0, POPT_ARG_STRING, &batch_prefix, OPT_READ_BATCH, 0, 0 },
390 {"write-batch", 0, POPT_ARG_STRING, &batch_prefix, OPT_WRITE_BATCH, 0, 0 },
391 {"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
392 {"from0", '0', POPT_ARG_NONE, &eol_nulls, 0, 0, 0},
393 {"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
394 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
395 {"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 },
397 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
398 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
404 static char err_buf[200];
408 * Store the option error message, if any, so that we can log the
409 * connection attempt (which requires parsing the options), and then
410 * show the error later on.
412 void option_error(void)
415 strcpy(err_buf, "Error parsing options: "
416 "option may be supported on client but not on server?\n");
419 rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
424 * Tweak the option table to disable all options that the rsyncd.conf
425 * file has told us to refuse.
427 static void set_refuse_options(char *bp)
429 struct poptOption *op;
433 if ((cp = strchr(bp, ' ')) != NULL)
435 for (op = long_options; ; op++) {
438 "Unknown option %s in \"refuse options\" setting\n",
442 if (strcmp(bp, op->longName) == 0) {
443 op->val = (op - long_options)+OPT_REFUSED_BASE;
455 static int count_args(char const **argv)
459 while (argv[i] != NULL)
467 * Process command line arguments. Called on both local and remote.
469 * @retval 1 if all options are OK; with globals set to appropriate
472 * @retval 0 on error, with err_buf containing an explanation
474 int parse_arguments(int *argc, const char ***argv, int frommain)
477 char *ref = lp_refuse_options(module_id);
482 set_refuse_options(ref);
484 /* TODO: Call poptReadDefaultConfig; handle errors. */
486 /* The context leaks in case of an error, but if there's a
487 * problem we always exit anyhow. */
488 pc = poptGetContext(RSYNC_NAME, *argc, *argv, long_options, 0);
490 while ((opt = poptGetNextOpt(pc)) != -1) {
491 /* most options are handled automatically by popt;
492 * only special cases are returned and listed here. */
496 print_rsync_version(FINFO);
499 case OPT_MODIFY_WINDOW:
500 /* The value has already been set by popt, but
501 * we need to remember that we're using a
502 * non-default setting. */
503 modify_window_set = 1;
506 case OPT_DELETE_AFTER:
511 case OPT_DELETE_EXCLUDED:
517 if (am_server || sanitize_paths)
518 return 0; /* Impossible... */
519 add_exclude(&exclude_list, poptGetOptArg(pc), 0);
523 if (am_server || sanitize_paths)
524 return 0; /* Impossible... */
525 add_exclude(&exclude_list, poptGetOptArg(pc),
529 case OPT_EXCLUDE_FROM:
530 if (am_server || sanitize_paths)
531 return 0; /* Impossible... */
532 arg = poptGetOptArg(pc);
533 add_exclude_file(&exclude_list, arg,
537 case OPT_INCLUDE_FROM:
538 if (am_server || sanitize_paths)
539 return 0; /* Impossible... */
540 arg = poptGetOptArg(pc);
541 add_exclude_file(&exclude_list, arg,
542 XFLG_FATAL_ERRORS | XFLG_DEF_INCLUDE);
561 exit_cleanup(RERR_SYNTAX);
571 case OPT_WRITE_BATCH:
572 /* popt stores the filename in batch_prefix for us */
574 checksum_seed = FIXED_CHECKSUM_SEED;
578 /* popt stores the filename in batch_prefix for us */
580 checksum_seed = FIXED_CHECKSUM_SEED;
584 if (io_timeout && io_timeout < select_timeout)
585 select_timeout = io_timeout;
593 snprintf(err_buf, sizeof err_buf,
594 "hard links are not supported on this %s\n",
595 am_server ? "server" : "client");
600 /* A large opt value means that set_refuse_options()
601 * turned this option off (opt-BASE is its index). */
602 if (opt >= OPT_REFUSED_BASE) {
603 struct poptOption *op =
604 &long_options[opt-OPT_REFUSED_BASE];
605 int n = snprintf(err_buf, sizeof err_buf,
606 "This server does not support --%s\n",
609 snprintf(err_buf+n, sizeof err_buf-n,
610 " (-%c)\n", op->shortName);
613 snprintf(err_buf, sizeof err_buf,
615 am_server ? "on remote machine: " : "",
616 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
624 if (preserve_links && !am_sender) {
625 snprintf(err_buf, sizeof err_buf,
626 "symlinks are not supported on this %s\n",
627 am_server ? "server" : "client");
632 #if !SUPPORT_HARD_LINKS
633 if (preserve_hard_links) {
634 snprintf(err_buf, sizeof err_buf,
635 "hard links are not supported on this %s\n",
636 am_server ? "server" : "client");
641 if (write_batch && read_batch) {
643 "write-batch and read-batch can not be used together\n");
644 exit_cleanup(RERR_SYNTAX);
646 if (batch_prefix && strlen(batch_prefix) > MAX_BATCH_PREFIX_LEN) {
648 "the batch-file prefix must be %d characters or less.\n",
649 MAX_BATCH_PREFIX_LEN);
650 exit_cleanup(RERR_SYNTAX);
653 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
654 rprintf(FERROR, "the --temp-dir path is WAY too long.\n");
655 exit_cleanup(RERR_SYNTAX);
658 if (do_compression && (write_batch || read_batch)) {
660 "compress can not be used with write-batch or read-batch\n");
661 exit_cleanup(RERR_SYNTAX);
674 preserve_devices = 1;
677 if (relative_paths < 0)
678 relative_paths = files_from? 1 : 0;
680 *argv = poptGetArgs(pc);
682 *argc = count_args(*argv);
686 if (sanitize_paths) {
688 for (i = *argc; i-- > 0; )
689 (*argv)[i] = alloc_sanitize_path((*argv)[i], NULL);
691 tmpdir = alloc_sanitize_path(tmpdir, curr_dir);
693 compare_dest = alloc_sanitize_path(compare_dest, curr_dir);
695 backup_dir = alloc_sanitize_path(backup_dir, curr_dir);
697 files_from = alloc_sanitize_path(files_from, curr_dir);
707 backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
708 backup_suffix_len = strlen(backup_suffix);
709 if (strchr(backup_suffix, '/') != NULL) {
710 rprintf(FERROR, "--suffix cannot contain slashes: %s\n",
712 exit_cleanup(RERR_SYNTAX);
715 backup_dir_len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
716 backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
717 if (backup_dir_remainder < 32) {
718 rprintf(FERROR, "the --backup-dir path is WAY too long.\n");
719 exit_cleanup(RERR_SYNTAX);
721 if (backup_dir_buf[backup_dir_len - 1] != '/') {
722 backup_dir_buf[backup_dir_len++] = '/';
723 backup_dir_buf[backup_dir_len] = '\0';
725 if (verbose > 1 && !am_sender)
726 rprintf(FINFO, "backup_dir is %s\n", backup_dir_buf);
727 } else if (!backup_suffix_len && (!am_server || !am_sender)) {
729 "--suffix cannot be a null string without --backup-dir\n");
730 exit_cleanup(RERR_SYNTAX);
733 if (do_progress && !verbose)
737 bwlimit_writemax = (size_t)bwlimit * 128;
738 if (bwlimit_writemax < 512)
739 bwlimit_writemax = 512;
744 if (*argc != 2 && !(am_server && am_sender && *argc == 1)) {
746 exit_cleanup(RERR_SYNTAX);
748 if (strcmp(files_from, "-") == 0) {
751 remote_filesfrom_file = "-";
753 else if ((colon = find_colon(files_from)) != 0) {
756 exit_cleanup(RERR_SYNTAX);
758 remote_filesfrom_file = colon+1 + (colon[1] == ':');
759 if (strcmp(remote_filesfrom_file, "-") == 0) {
760 rprintf(FERROR, "Invalid --files-from remote filename\n");
761 exit_cleanup(RERR_SYNTAX);
764 filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
765 if (filesfrom_fd < 0) {
766 rsyserr(FERROR, errno,
767 "failed to open files-from file %s",
769 exit_cleanup(RERR_FILEIO);
779 * Construct a filtered list of options to pass through from the
780 * client to the server.
782 * This involves setting options that will tell the server how to
783 * behave, and also filtering out options that are processed only
786 void server_options(char **args,int *argc)
789 static char argstr[50];
794 if (blocking_io == -1)
797 args[ac++] = "--server";
799 if (daemon_over_rsh) {
800 args[ac++] = "--daemon";
802 /* if we're passing --daemon, we're done */
807 args[ac++] = "--sender";
811 for (i = 0; i < verbose; i++)
814 /* the -q option is intentionally left out */
825 if (keep_dirlinks && am_sender)
830 /* We don't need to send --no-whole-file, because it's the
831 * default for remote transfers, and in any case old versions
832 * of rsync will not understand it. */
834 if (preserve_hard_links)
840 if (preserve_devices)
863 /* this is a complete hack - blame Rusty
865 this is a hack to make the list_only (remote file list)
867 if (list_only && !recurse)
876 if (asprintf(&arg, "-B%u", block_size) < 0)
881 if (max_delete && am_sender) {
882 if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
888 char *r_or_w = write_batch ? "write" : "read";
889 if (asprintf(&arg, "--%s-batch=%s", r_or_w, batch_prefix) < 0)
895 if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
901 if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
907 args[ac++] = "--backup-dir";
908 args[ac++] = backup_dir;
911 /* Only send --suffix if it specifies a non-default value. */
912 if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
913 /* We use the following syntax to avoid weirdness with '~'. */
914 if (asprintf(&arg, "--suffix=%s", backup_suffix) < 0)
920 args[ac++] = "--delete-excluded";
921 else if (delete_mode)
922 args[ac++] = "--delete";
925 args[ac++] = "--size-only";
927 if (modify_window_set) {
928 if (asprintf(&arg, "--modify-window=%d", modify_window) < 0)
934 if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
940 args[ac++] = "--partial";
943 args[ac++] = "--force";
946 args[ac++] = "--delete-after";
949 args[ac++] = "--ignore-errors";
951 if (copy_unsafe_links)
952 args[ac++] = "--copy-unsafe-links";
955 args[ac++] = "--safe-links";
958 args[ac++] = "--numeric-ids";
960 if (only_existing && am_sender)
961 args[ac++] = "--existing";
963 if (opt_ignore_existing && am_sender)
964 args[ac++] = "--ignore-existing";
967 args[ac++] = "--temp-dir";
971 if (compare_dest && am_sender) {
972 /* the server only needs this option if it is not the sender,
973 * and it may be an older version that doesn't know this
974 * option, so don't send it if client is the sender.
976 args[ac++] = link_dest ? "--link-dest" : "--compare-dest";
977 args[ac++] = compare_dest;
980 if (files_from && (!am_sender || remote_filesfrom_file)) {
981 if (remote_filesfrom_file) {
982 args[ac++] = "--files-from";
983 args[ac++] = remote_filesfrom_file;
985 args[ac++] = "--from0";
987 args[ac++] = "--files-from=-";
988 args[ac++] = "--from0";
996 out_of_memory("server_options");
1000 * Return the position of a ':' IF it is not part of a filename (i.e. as
1001 * long as it doesn't occur after a slash.
1003 char *find_colon(char *s)
1011 /* now check to see if there is a / in the string before the : - if there is then
1012 discard the colon on the assumption that the : is part of a filename */