?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
A daemon needs to set dry_run with --only-write-batch.
[rsync.git] / options.c
blob783ca594b157aec16c6b6e5dbffeb4923e184ed8
1 /*
2 * Command-line (and received via daemon-socket) option parsing.
3 *
4 * Copyright (C) 1998-2001 Andrew Tridgell <tridge@samba.org>
5 * Copyright (C) 2000, 2001, 2002 Martin Pool <mbp@samba.org>
6 * Copyright (C) 2002-2007 Wayne Davison
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, visit the http://fsf.org website.
20 */
21
22 #include "rsync.h"
23 #include "ifuncs.h"
24 #include <popt.h>
25 #include "zlib/zlib.h"
26
27 extern int module_id;
28 extern int sanitize_paths;
29 extern int daemon_over_rsh;
30 extern struct filter_list_struct filter_list;
31 extern struct filter_list_struct server_filter_list;
32
33 int make_backups = 0;
34
35 /**
36 * If 1, send the whole file as literal data rather than trying to
37 * create an incremental diff.
38 *
39 * If -1, then look at whether we're local or remote and go by that.
40 *
41 * @sa disable_deltas_p()
42 **/
43 int whole_file = -1;
44
45 int append_mode = 0;
46 int keep_dirlinks = 0;
47 int copy_dirlinks = 0;
48 int copy_links = 0;
49 int preserve_links = 0;
50 int preserve_hard_links = 0;
51 int preserve_acls = 0;
52 int preserve_xattrs = 0;
53 int preserve_perms = 0;
54 int preserve_executability = 0;
55 int preserve_devices = 0;
56 int preserve_specials = 0;
57 int preserve_uid = 0;
58 int preserve_gid = 0;
59 int preserve_times = 0;
60 int update_only = 0;
61 int cvs_exclude = 0;
62 int dry_run = 0;
63 int do_xfers = 1;
64 int ignore_times = 0;
65 int delete_mode = 0;
66 int delete_during = 0;
67 int delete_before = 0;
68 int delete_after = 0;
69 int delete_excluded = 0;
70 int remove_source_files = 0;
71 int one_file_system = 0;
72 int protocol_version = PROTOCOL_VERSION;
73 int sparse_files = 0;
74 int do_compression = 0;
75 int def_compress_level = Z_DEFAULT_COMPRESSION;
76 int am_root = 0; /* 0 = normal, 1 = root, 2 = --super, -1 = --fake-super */
77 int am_server = 0;
78 int am_sender = 0;
79 int am_generator = 0;
80 int am_starting_up = 1;
81 int relative_paths = -1;
82 int implied_dirs = 1;
83 int numeric_ids = 0;
84 int allow_8bit_chars = 0;
85 int force_delete = 0;
86 int io_timeout = 0;
87 int allowed_lull = 0;
88 int prune_empty_dirs = 0;
89 int use_qsort = 0;
90 char *files_from = NULL;
91 int filesfrom_fd = -1;
92 char *filesfrom_host = NULL;
93 int eol_nulls = 0;
94 int protect_args = 0;
95 int human_readable = 0;
96 int recurse = 0;
97 int allow_inc_recurse = 1;
98 int xfer_dirs = -1;
99 int am_daemon = 0;
100 int do_stats = 0;
101 int do_progress = 0;
102 int keep_partial = 0;
103 int safe_symlinks = 0;
104 int copy_unsafe_links = 0;
105 int size_only = 0;
106 int daemon_bwlimit = 0;
107 int bwlimit = 0;
108 int fuzzy_basis = 0;
109 size_t bwlimit_writemax = 0;
110 int ignore_existing = 0;
111 int ignore_non_existing = 0;
112 int need_messages_from_generator = 0;
113 int max_delete = INT_MIN;
114 OFF_T max_size = 0;
115 OFF_T min_size = 0;
116 int ignore_errors = 0;
117 int modify_window = 0;
118 int blocking_io = -1;
119 int checksum_seed = 0;
120 int inplace = 0;
121 int delay_updates = 0;
122 long block_size = 0; /* "long" because popt can't set an int32. */
123 char *skip_compress = NULL;
124
125 /** Network address family. **/
126 int default_af_hint
127 #ifdef INET6
128 = 0; /* Any protocol */
129 #else
130 = AF_INET; /* Must use IPv4 */
131 # ifdef AF_INET6
132 # undef AF_INET6
133 # endif
134 # define AF_INET6 AF_INET /* make -6 option a no-op */
135 #endif
136
137 /** Do not go into the background when run as --daemon. Good
138 * for debugging and required for running as a service on W32,
139 * or under Unix process-monitors. **/
140 int no_detach
141 #if defined _WIN32 || defined __WIN32__
142 = 1;
143 #else
144 = 0;
145 #endif
146
147 int write_batch = 0;
148 int read_batch = 0;
149 int backup_dir_len = 0;
150 int backup_suffix_len;
151 unsigned int backup_dir_remainder;
152
153 char *backup_suffix = NULL;
154 char *tmpdir = NULL;
155 char *partial_dir = NULL;
156 char *basis_dir[MAX_BASIS_DIRS+1];
157 char *config_file = NULL;
158 char *shell_cmd = NULL;
159 char *logfile_name = NULL;
160 char *logfile_format = NULL;
161 char *stdout_format = NULL;
162 char *password_file = NULL;
163 char *rsync_path = RSYNC_PATH;
164 char *backup_dir = NULL;
165 char backup_dir_buf[MAXPATHLEN];
166 char *sockopts = NULL;
167 int rsync_port = 0;
168 int compare_dest = 0;
169 int copy_dest = 0;
170 int link_dest = 0;
171 int basis_dir_cnt = 0;
172 char *dest_option = NULL;
173
174 int verbose = 0;
175 int quiet = 0;
176 int output_motd = 1;
177 int log_before_transfer = 0;
178 int stdout_format_has_i = 0;
179 int stdout_format_has_o_or_i = 0;
180 int logfile_format_has_i = 0;
181 int logfile_format_has_o_or_i = 0;
182 int always_checksum = 0;
183 int list_only = 0;
184
185 #define MAX_BATCH_NAME_LEN 256 /* Must be less than MAXPATHLEN-13 */
186 char *batch_name = NULL;
187
188 int need_unsorted_flist = 0;
189 #ifdef ICONV_OPTION
190 char *iconv_opt = ICONV_OPTION;
191 #endif
192
193 struct chmod_mode_struct *chmod_modes = NULL;
194
195 static int daemon_opt; /* sets am_daemon after option error-reporting */
196 static int omit_dir_times = 0;
197 static int F_option_cnt = 0;
198 static int modify_window_set;
199 static int itemize_changes = 0;
200 static int refused_delete, refused_archive_part, refused_compress;
201 static int refused_partial, refused_progress, refused_delete_before;
202 static int refused_delete_during;
203 static int refused_inplace;
204 static char *max_size_arg, *min_size_arg;
205 static char tmp_partialdir[] = ".~tmp~";
206
207 /** Local address to bind. As a character string because it's
208 * interpreted by the IPv6 layer: should be a numeric IP4 or IP6
209 * address, or a hostname. **/
210 char *bind_address;
211
212
213 static void print_rsync_version(enum logcode f)
214 {
215 char *subprotocol = "";
216 char const *got_socketpair = "no ";
217 char const *have_inplace = "no ";
218 char const *hardlinks = "no ";
219 char const *acls = "no ";
220 char const *xattrs = "no ";
221 char const *links = "no ";
222 char const *iconv = "no ";
223 char const *ipv6 = "no ";
224 STRUCT_STAT *dumstat;
225
226 #if SUBPROTOCOL_VERSION != 0
227 asprintf(&subprotocol, ".PR%d", SUBPROTOCOL_VERSION);
228 #endif
229 #ifdef HAVE_SOCKETPAIR
230 got_socketpair = "";
231 #endif
232 #ifdef HAVE_FTRUNCATE
233 have_inplace = "";
234 #endif
235 #ifdef SUPPORT_HARD_LINKS
236 hardlinks = "";
237 #endif
238 #ifdef SUPPORT_ACLS
239 acls = "";
240 #endif
241 #ifdef SUPPORT_XATTRS
242 xattrs = "";
243 #endif
244 #ifdef SUPPORT_LINKS
245 links = "";
246 #endif
247 #ifdef INET6
248 ipv6 = "";
249 #endif
250 #ifdef ICONV_OPTION
251 iconv = "";
252 #endif
253
254 rprintf(f, "%s version %s protocol version %d%s\n",
255 RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION, subprotocol);
256 rprintf(f, "Copyright (C) 1996-2007 by Andrew Tridgell, Wayne Davison, and others.\n");
257 rprintf(f, "Web site: http://rsync.samba.org/\n");
258 rprintf(f, "Capabilities:\n");
259 rprintf(f, " %d-bit files, %d-bit inums, %d-bit timestamps, %d-bit long ints,\n",
260 (int)(sizeof (OFF_T) * 8),
261 (int)(sizeof dumstat->st_ino * 8), /* Don't check ino_t! */
262 (int)(sizeof (time_t) * 8),
263 (int)(sizeof (int64) * 8));
264 rprintf(f, " %ssocketpairs, %shardlinks, %ssymlinks, %sIPv6, batchfiles, %sinplace,\n",
265 got_socketpair, hardlinks, links, ipv6, have_inplace);
266 rprintf(f, " %sappend, %sACLs, %sxattrs, %siconv\n",
267 have_inplace, acls, xattrs, iconv);
268
269 #ifdef MAINTAINER_MODE
270 rprintf(f, "Panic Action: \"%s\"\n", get_panic_action());
271 #endif
272
273 #if SIZEOF_INT64 < 8
274 rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
275 #endif
276 if (sizeof (int64) != SIZEOF_INT64) {
277 rprintf(f,
278 "WARNING: size mismatch in SIZEOF_INT64 define (%d != %d)\n",
279 (int) SIZEOF_INT64, (int) sizeof (int64));
280 }
281
282 rprintf(f,"\n");
283 rprintf(f,"rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n");
284 rprintf(f,"are welcome to redistribute it under certain conditions. See the GNU\n");
285 rprintf(f,"General Public Licence for details.\n");
286 }
287
288
289 void usage(enum logcode F)
290 {
291 print_rsync_version(F);
292
293 rprintf(F,"\n");
294 rprintf(F,"rsync is a file transfer program capable of efficient remote update\n");
295 rprintf(F,"via a fast differencing algorithm.\n");
296
297 rprintf(F,"\n");
298 rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... DEST\n");
299 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
300 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
301 rprintf(F," or rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST\n");
302 rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC [DEST]\n");
303 rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
304 rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
305 rprintf(F,"The ':' usages connect via remote shell, while '::' & 'rsync://' usages connect\n");
306 rprintf(F,"to an rsync daemon, and require SRC or DEST to start with a module name.\n");
307 rprintf(F,"\n");
308 rprintf(F,"Options\n");
309 rprintf(F," -v, --verbose increase verbosity\n");
310 rprintf(F," -q, --quiet suppress non-error messages\n");
311 rprintf(F," --no-motd suppress daemon-mode MOTD (see manpage caveat)\n");
312 rprintf(F," -c, --checksum skip based on checksum, not mod-time & size\n");
313 rprintf(F," -a, --archive archive mode; equals -rlptgoD (no -H,-A,-X)\n");
314 rprintf(F," --no-OPTION turn off an implied OPTION (e.g. --no-D)\n");
315 rprintf(F," -r, --recursive recurse into directories\n");
316 rprintf(F," -R, --relative use relative path names\n");
317 rprintf(F," --no-implied-dirs don't send implied dirs with --relative\n");
318 rprintf(F," -b, --backup make backups (see --suffix & --backup-dir)\n");
319 rprintf(F," --backup-dir=DIR make backups into hierarchy based in DIR\n");
320 rprintf(F," --suffix=SUFFIX set backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX);
321 rprintf(F," -u, --update skip files that are newer on the receiver\n");
322 rprintf(F," --inplace update destination files in-place (SEE MAN PAGE)\n");
323 rprintf(F," --append append data onto shorter files\n");
324 rprintf(F," --append-verify like --append, but with old data in file checksum\n");
325 rprintf(F," -d, --dirs transfer directories without recursing\n");
326 rprintf(F," -l, --links copy symlinks as symlinks\n");
327 rprintf(F," -L, --copy-links transform symlink into referent file/dir\n");
328 rprintf(F," --copy-unsafe-links only \"unsafe\" symlinks are transformed\n");
329 rprintf(F," --safe-links ignore symlinks that point outside the source tree\n");
330 rprintf(F," -k, --copy-dirlinks transform symlink to a dir into referent dir\n");
331 rprintf(F," -K, --keep-dirlinks treat symlinked dir on receiver as dir\n");
332 rprintf(F," -H, --hard-links preserve hard links\n");
333 rprintf(F," -p, --perms preserve permissions\n");
334 rprintf(F," -E, --executability preserve the file's executability\n");
335 rprintf(F," --chmod=CHMOD affect file and/or directory permissions\n");
336 #ifdef SUPPORT_ACLS
337 rprintf(F," -A, --acls preserve ACLs (implies --perms)\n");
338 #endif
339 #ifdef SUPPORT_XATTRS
340 rprintf(F," -X, --xattrs preserve extended attributes\n");
341 #endif
342 rprintf(F," -o, --owner preserve owner (super-user only)\n");
343 rprintf(F," -g, --group preserve group\n");
344 rprintf(F," --devices preserve device files (super-user only)\n");
345 rprintf(F," --specials preserve special files\n");
346 rprintf(F," -D same as --devices --specials\n");
347 rprintf(F," -t, --times preserve modification times\n");
348 rprintf(F," -O, --omit-dir-times omit directories from --times\n");
349 rprintf(F," --super receiver attempts super-user activities\n");
350 #ifdef SUPPORT_XATTRS
351 rprintf(F," --fake-super store/recover privileged attrs using xattrs\n");
352 #endif
353 rprintf(F," -S, --sparse handle sparse files efficiently\n");
354 rprintf(F," -n, --dry-run perform a trial run with no changes made\n");
355 rprintf(F," -W, --whole-file copy files whole (without rsync algorithm)\n");
356 rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
357 rprintf(F," -B, --block-size=SIZE force a fixed checksum block-size\n");
358 rprintf(F," -e, --rsh=COMMAND specify the remote shell to use\n");
359 rprintf(F," --rsync-path=PROGRAM specify the rsync to run on the remote machine\n");
360 rprintf(F," --existing skip creating new files on receiver\n");
361 rprintf(F," --ignore-existing skip updating files that already exist on receiver\n");
362 rprintf(F," --remove-source-files sender removes synchronized files (non-dirs)\n");
363 rprintf(F," --del an alias for --delete-during\n");
364 rprintf(F," --delete delete extraneous files from destination dirs\n");
365 rprintf(F," --delete-before receiver deletes before transfer, not during\n");
366 rprintf(F," --delete-during receiver deletes during transfer (default)\n");
367 rprintf(F," --delete-delay find deletions during, delete after\n");
368 rprintf(F," --delete-after receiver deletes after transfer, not during\n");
369 rprintf(F," --delete-excluded also delete excluded files from destination dirs\n");
370 rprintf(F," --ignore-errors delete even if there are I/O errors\n");
371 rprintf(F," --force force deletion of directories even if not empty\n");
372 rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
373 rprintf(F," --max-size=SIZE don't transfer any file larger than SIZE\n");
374 rprintf(F," --min-size=SIZE don't transfer any file smaller than SIZE\n");
375 rprintf(F," --partial keep partially transferred files\n");
376 rprintf(F," --partial-dir=DIR put a partially transferred file into DIR\n");
377 rprintf(F," --delay-updates put all updated files into place at transfer's end\n");
378 rprintf(F," -m, --prune-empty-dirs prune empty directory chains from the file-list\n");
379 rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
380 rprintf(F," --timeout=TIME set I/O timeout in seconds\n");
381 rprintf(F," -I, --ignore-times don't skip files that match in size and mod-time\n");
382 rprintf(F," --size-only skip files that match in size\n");
383 rprintf(F," --modify-window=NUM compare mod-times with reduced accuracy\n");
384 rprintf(F," -T, --temp-dir=DIR create temporary files in directory DIR\n");
385 rprintf(F," -y, --fuzzy find similar file for basis if no dest file\n");
386 rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
387 rprintf(F," --copy-dest=DIR ... and include copies of unchanged files\n");
388 rprintf(F," --link-dest=DIR hardlink to files in DIR when unchanged\n");
389 rprintf(F," -z, --compress compress file data during the transfer\n");
390 rprintf(F," --compress-level=NUM explicitly set compression level\n");
391 rprintf(F," --skip-compress=LIST skip compressing files with a suffix in LIST\n");
392 rprintf(F," -C, --cvs-exclude auto-ignore files the same way CVS does\n");
393 rprintf(F," -f, --filter=RULE add a file-filtering RULE\n");
394 rprintf(F," -F same as --filter='dir-merge /.rsync-filter'\n");
395 rprintf(F," repeated: --filter='- .rsync-filter'\n");
396 rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
397 rprintf(F," --exclude-from=FILE read exclude patterns from FILE\n");
398 rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
399 rprintf(F," --include-from=FILE read include patterns from FILE\n");
400 rprintf(F," --files-from=FILE read list of source-file names from FILE\n");
401 rprintf(F," -0, --from0 all *-from/filter files are delimited by 0s\n");
402 rprintf(F," -s, --protect-args no space-splitting; only wildcard special-chars\n");
403 rprintf(F," --address=ADDRESS bind address for outgoing socket to daemon\n");
404 rprintf(F," --port=PORT specify double-colon alternate port number\n");
405 rprintf(F," --sockopts=OPTIONS specify custom TCP options\n");
406 rprintf(F," --blocking-io use blocking I/O for the remote shell\n");
407 rprintf(F," --stats give some file-transfer stats\n");
408 rprintf(F," -8, --8-bit-output leave high-bit chars unescaped in output\n");
409 rprintf(F," -h, --human-readable output numbers in a human-readable format\n");
410 rprintf(F," --progress show progress during transfer\n");
411 rprintf(F," -P same as --partial --progress\n");
412 rprintf(F," -i, --itemize-changes output a change-summary for all updates\n");
413 rprintf(F," --out-format=FORMAT output updates using the specified FORMAT\n");
414 rprintf(F," --log-file=FILE log what we're doing to the specified FILE\n");
415 rprintf(F," --log-file-format=FMT log updates using the specified FMT\n");
416 rprintf(F," --password-file=FILE read daemon-access password from FILE\n");
417 rprintf(F," --list-only list the files instead of copying them\n");
418 rprintf(F," --bwlimit=KBPS limit I/O bandwidth; KBytes per second\n");
419 rprintf(F," --write-batch=FILE write a batched update to FILE\n");
420 rprintf(F," --only-write-batch=FILE like --write-batch but w/o updating destination\n");
421 rprintf(F," --read-batch=FILE read a batched update from FILE\n");
422 rprintf(F," --protocol=NUM force an older protocol version to be used\n");
423 #ifdef ICONV_OPTION
424 rprintf(F," --iconv=CONVERT_SPEC request charset conversion of filenames\n");
425 #endif
426 rprintf(F," -4, --ipv4 prefer IPv4\n");
427 rprintf(F," -6, --ipv6 prefer IPv6\n");
428 rprintf(F," --version print version number\n");
429 rprintf(F,"(-h) --help show this help (-h works with no other options)\n");
430
431 rprintf(F,"\n");
432 rprintf(F,"Use \"rsync --daemon --help\" to see the daemon-mode command-line options.\n");
433 rprintf(F,"Please see the rsync(1) and rsyncd.conf(5) man pages for full documentation.\n");
434 rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
435 }
436
437 enum {OPT_VERSION = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
438 OPT_FILTER, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST, OPT_HELP,
439 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW, OPT_MIN_SIZE, OPT_CHMOD,
440 OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_ONLY_WRITE_BATCH, OPT_MAX_SIZE,
441 OPT_NO_D, OPT_APPEND,
442 OPT_SERVER, OPT_REFUSED_BASE = 9000};
443
444 static struct poptOption long_options[] = {
445 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
446 {"help", 0, POPT_ARG_NONE, 0, OPT_HELP, 0, 0 },
447 {"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0},
448 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
449 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
450 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
451 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
452 {"motd", 0, POPT_ARG_VAL, &output_motd, 1, 0, 0 },
453 {"no-motd", 0, POPT_ARG_VAL, &output_motd, 0, 0, 0 },
454 {"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
455 {"human-readable", 'h', POPT_ARG_NONE, 0, 'h', 0, 0},
456 {"no-human-readable",0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
457 {"no-h", 0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
458 {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
459 {"archive", 'a', POPT_ARG_NONE, 0, 'a', 0, 0 },
460 {"recursive", 'r', POPT_ARG_VAL, &recurse, 2, 0, 0 },
461 {"no-recursive", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
462 {"no-r", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
463 {"inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
464 {"no-inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
465 {"i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
466 {"no-i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
467 {"dirs", 'd', POPT_ARG_VAL, &xfer_dirs, 2, 0, 0 },
468 {"no-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
469 {"no-d", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
470 {"perms", 'p', POPT_ARG_VAL, &preserve_perms, 1, 0, 0 },
471 {"no-perms", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
472 {"no-p", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
473 {"executability", 'E', POPT_ARG_NONE, &preserve_executability, 0, 0, 0 },
474 {"acls", 'A', POPT_ARG_NONE, 0, 'A', 0, 0 },
475 {"no-acls", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
476 {"no-A", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
477 {"xattrs", 'X', POPT_ARG_NONE, 0, 'X', 0, 0 },
478 {"no-xattrs", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
479 {"no-X", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
480 {"times", 't', POPT_ARG_VAL, &preserve_times, 2, 0, 0 },
481 {"no-times", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 },
482 {"no-t", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 },
483 {"omit-dir-times", 'O', POPT_ARG_VAL, &omit_dir_times, 1, 0, 0 },
484 {"no-omit-dir-times",0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
485 {"no-O", 0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
486 {"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
487 {"super", 0, POPT_ARG_VAL, &am_root, 2, 0, 0 },
488 {"no-super", 0, POPT_ARG_VAL, &am_root, 0, 0, 0 },
489 {"fake-super", 0, POPT_ARG_VAL, &am_root, -1, 0, 0 },
490 {"owner", 'o', POPT_ARG_VAL, &preserve_uid, 1, 0, 0 },
491 {"no-owner", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
492 {"no-o", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
493 {"group", 'g', POPT_ARG_VAL, &preserve_gid, 1, 0, 0 },
494 {"no-group", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
495 {"no-g", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
496 {0, 'D', POPT_ARG_NONE, 0, 'D', 0, 0 },
497 {"no-D", 0, POPT_ARG_NONE, 0, OPT_NO_D, 0, 0 },
498 {"devices", 0, POPT_ARG_VAL, &preserve_devices, 1, 0, 0 },
499 {"no-devices", 0, POPT_ARG_VAL, &preserve_devices, 0, 0, 0 },
500 {"specials", 0, POPT_ARG_VAL, &preserve_specials, 1, 0, 0 },
501 {"no-specials", 0, POPT_ARG_VAL, &preserve_specials, 0, 0, 0 },
502 {"links", 'l', POPT_ARG_VAL, &preserve_links, 1, 0, 0 },
503 {"no-links", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
504 {"no-l", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
505 {"copy-links", 'L', POPT_ARG_NONE, &copy_links, 0, 0, 0 },
506 {"copy-unsafe-links",0, POPT_ARG_NONE, &copy_unsafe_links, 0, 0, 0 },
507 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
508 {"copy-dirlinks", 'k', POPT_ARG_NONE, &copy_dirlinks, 0, 0, 0 },
509 {"keep-dirlinks", 'K', POPT_ARG_NONE, &keep_dirlinks, 0, 0, 0 },
510 {"hard-links", 'H', POPT_ARG_NONE, 0, 'H', 0, 0 },
511 {"no-hard-links", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
512 {"no-H", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
513 {"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 },
514 {"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
515 {"no-R", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
516 {"implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
517 {"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
518 {"i-d", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
519 {"no-i-d", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
520 {"chmod", 0, POPT_ARG_STRING, 0, OPT_CHMOD, 0, 0 },
521 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 },
522 {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 },
523 {"one-file-system", 'x', POPT_ARG_NONE, 0, 'x', 0, 0 },
524 {"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 },
525 {"existing", 0, POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
526 {"ignore-non-existing",0,POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
527 {"ignore-existing", 0, POPT_ARG_NONE, &ignore_existing, 0, 0, 0 },
528 {"max-size", 0, POPT_ARG_STRING, &max_size_arg, OPT_MAX_SIZE, 0, 0 },
529 {"min-size", 0, POPT_ARG_STRING, &min_size_arg, OPT_MIN_SIZE, 0, 0 },
530 {"sparse", 'S', POPT_ARG_NONE, &sparse_files, 0, 0, 0 },
531 {"inplace", 0, POPT_ARG_NONE, &inplace, 0, 0, 0 },
532 {"append", 0, POPT_ARG_NONE, 0, OPT_APPEND, 0, 0 },
533 {"append-verify", 0, POPT_ARG_VAL, &append_mode, 2, 0, 0 },
534 {"no-append", 0, POPT_ARG_VAL, &append_mode, 0, 0, 0 },
535 {"del", 0, POPT_ARG_NONE, &delete_during, 0, 0, 0 },
536 {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
537 {"delete-before", 0, POPT_ARG_NONE, &delete_before, 0, 0, 0 },
538 {"delete-during", 0, POPT_ARG_VAL, &delete_during, 1, 0, 0 },
539 {"delete-delay", 0, POPT_ARG_VAL, &delete_during, 2, 0, 0 },
540 {"delete-after", 0, POPT_ARG_NONE, &delete_after, 0, 0, 0 },
541 {"delete-excluded", 0, POPT_ARG_NONE, &delete_excluded, 0, 0, 0 },
542 {"remove-sent-files",0, POPT_ARG_VAL, &remove_source_files, 2, 0, 0 }, /* deprecated */
543 {"remove-source-files",0,POPT_ARG_VAL, &remove_source_files, 1, 0, 0 },
544 {"force", 0, POPT_ARG_NONE, &force_delete, 0, 0, 0 },
545 {"ignore-errors", 0, POPT_ARG_NONE, &ignore_errors, 0, 0, 0 },
546 {"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
547 {0, 'F', POPT_ARG_NONE, 0, 'F', 0, 0 },
548 {"filter", 'f', POPT_ARG_STRING, 0, OPT_FILTER, 0, 0 },
549 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
550 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
551 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
552 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
553 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
554 {"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
555 {"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
556 {"no-W", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
557 {"checksum", 'c', POPT_ARG_VAL, &always_checksum, 1, 0, 0 },
558 {"no-checksum", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
559 {"no-c", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
560 {"block-size", 'B', POPT_ARG_LONG, &block_size, 0, 0, 0 },
561 {"compare-dest", 0, POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 },
562 {"copy-dest", 0, POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 },
563 {"link-dest", 0, POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 },
564 {"fuzzy", 'y', POPT_ARG_NONE, &fuzzy_basis, 0, 0, 0 },
565 {"compress", 'z', POPT_ARG_NONE, 0, 'z', 0, 0 },
566 {"no-compress", 0, POPT_ARG_VAL, &do_compression, 0, 0, 0 },
567 {"skip-compress", 0, POPT_ARG_STRING, &skip_compress, 0, 0, 0 },
568 {"no-z", 0, POPT_ARG_VAL, &do_compression, 0, 0, 0 },
569 {"compress-level", 0, POPT_ARG_INT, &def_compress_level, 'z', 0, 0 },
570 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
571 {"progress", 0, POPT_ARG_VAL, &do_progress, 1, 0, 0 },
572 {"no-progress", 0, POPT_ARG_VAL, &do_progress, 0, 0, 0 },
573 {"partial", 0, POPT_ARG_VAL, &keep_partial, 1, 0, 0 },
574 {"no-partial", 0, POPT_ARG_VAL, &keep_partial, 0, 0, 0 },
575 {"partial-dir", 0, POPT_ARG_STRING, &partial_dir, 0, 0, 0 },
576 {"delay-updates", 0, POPT_ARG_VAL, &delay_updates, 1, 0, 0 },
577 {"no-delay-updates", 0, POPT_ARG_VAL, &delay_updates, 0, 0, 0 },
578 {"prune-empty-dirs",'m', POPT_ARG_NONE, &prune_empty_dirs, 0, 0, 0 },
579 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
580 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
581 {"out-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 },
582 {"log-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 }, /* DEPRECATED */
583 {"itemize-changes", 'i', POPT_ARG_NONE, 0, 'i', 0, 0 },
584 {"no-itemize-changes",0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
585 {"no-i", 0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
586 {"bwlimit", 0, POPT_ARG_INT, &bwlimit, 0, 0, 0 },
587 {"no-bwlimit", 0, POPT_ARG_VAL, &bwlimit, 0, 0, 0 },
588 {"backup", 'b', POPT_ARG_VAL, &make_backups, 1, 0, 0 },
589 {"no-backup", 0, POPT_ARG_VAL, &make_backups, 0, 0, 0 },
590 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
591 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
592 {"list-only", 0, POPT_ARG_VAL, &list_only, 2, 0, 0 },
593 {"read-batch", 0, POPT_ARG_STRING, &batch_name, OPT_READ_BATCH, 0, 0 },
594 {"write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_WRITE_BATCH, 0, 0 },
595 {"only-write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_ONLY_WRITE_BATCH, 0, 0 },
596 {"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
597 {"from0", '0', POPT_ARG_VAL, &eol_nulls, 1, 0, 0},
598 {"no-from0", 0, POPT_ARG_VAL, &eol_nulls, 0, 0, 0},
599 {"protect-args", 's', POPT_ARG_VAL, &protect_args, 1, 0, 0},
600 {"no-protect-args", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
601 {"no-s", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
602 {"numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 1, 0, 0 },
603 {"no-numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 0, 0, 0 },
604 {"timeout", 0, POPT_ARG_INT, &io_timeout, 0, 0, 0 },
605 {"no-timeout", 0, POPT_ARG_VAL, &io_timeout, 0, 0, 0 },
606 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
607 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
608 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
609 #ifdef ICONV_OPTION
610 {"iconv", 0, POPT_ARG_STRING, &iconv_opt, 0, 0, 0 },
611 #endif
612 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
613 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
614 {"8-bit-output", '8', POPT_ARG_NONE, &allow_8bit_chars, 0, 0, 0 },
615 {"qsort", 0, POPT_ARG_NONE, &use_qsort, 0, 0, 0 },
616 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
617 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
618 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
619 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
620 {"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
621 {"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
622 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
623 {"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 },
624 {"server", 0, POPT_ARG_NONE, 0, OPT_SERVER, 0, 0 },
625 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
626 /* All the following options switch us into daemon-mode option-parsing. */
627 {"config", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
628 {"daemon", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
629 {"detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
630 {"no-detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
631 {0,0,0,0, 0, 0, 0}
632 };
633
634 static void daemon_usage(enum logcode F)
635 {
636 print_rsync_version(F);
637
638 rprintf(F,"\n");
639 rprintf(F,"Usage: rsync --daemon [OPTION]...\n");
640 rprintf(F," --address=ADDRESS bind to the specified address\n");
641 rprintf(F," --bwlimit=KBPS limit I/O bandwidth; KBytes per second\n");
642 rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
643 rprintf(F," --no-detach do not detach from the parent\n");
644 rprintf(F," --port=PORT listen on alternate port number\n");
645 rprintf(F," --log-file=FILE override the \"log file\" setting\n");
646 rprintf(F," --log-file-format=FMT override the \"log format\" setting\n");
647 rprintf(F," --sockopts=OPTIONS specify custom TCP options\n");
648 rprintf(F," -v, --verbose increase verbosity\n");
649 rprintf(F," -4, --ipv4 prefer IPv4\n");
650 rprintf(F," -6, --ipv6 prefer IPv6\n");
651 rprintf(F," --help show this help screen\n");
652
653 rprintf(F,"\n");
654 rprintf(F,"If you were not trying to invoke rsync as a daemon, avoid using any of the\n");
655 rprintf(F,"daemon-specific rsync options. See also the rsyncd.conf(5) man page.\n");
656 }
657
658 static struct poptOption long_daemon_options[] = {
659 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
660 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
661 {"bwlimit", 0, POPT_ARG_INT, &daemon_bwlimit, 0, 0, 0 },
662 {"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
663 {"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
664 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
665 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
666 {"detach", 0, POPT_ARG_VAL, &no_detach, 0, 0, 0 },
667 {"no-detach", 0, POPT_ARG_VAL, &no_detach, 1, 0, 0 },
668 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
669 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
670 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
671 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
672 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
673 {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
674 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
675 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
676 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
677 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
678 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
679 {0,0,0,0, 0, 0, 0}
680 };
681
682
683 static char err_buf[200];
684
685
686 /**
687 * Store the option error message, if any, so that we can log the
688 * connection attempt (which requires parsing the options), and then
689 * show the error later on.
690 **/
691 void option_error(void)
692 {
693 if (!err_buf[0]) {
694 strlcpy(err_buf, "Error parsing options: option may "
695 "be supported on client but not on server?\n",
696 sizeof err_buf);
697 }
698
699 rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
700 msleep(20);
701 }
702
703
704 /**
705 * Tweak the option table to disable all options that the rsyncd.conf
706 * file has told us to refuse.
707 **/
708 static void set_refuse_options(char *bp)
709 {
710 struct poptOption *op;
711 char *cp, shortname[2];
712 int is_wild, found_match;
713
714 shortname[1] = '\0';
715
716 while (1) {
717 while (*bp == ' ') bp++;
718 if (!*bp)
719 break;
720 if ((cp = strchr(bp, ' ')) != NULL)
721 *cp= '\0';
722 is_wild = strpbrk(bp, "*?[") != NULL;
723 found_match = 0;
724 for (op = long_options; ; op++) {
725 *shortname = op->shortName;
726 if (!op->longName && !*shortname)
727 break;
728 if ((op->longName && wildmatch(bp, op->longName))
729 || (*shortname && wildmatch(bp, shortname))) {
730 if (op->argInfo == POPT_ARG_VAL)
731 op->argInfo = POPT_ARG_NONE;
732 op->val = (op - long_options) + OPT_REFUSED_BASE;
733 found_match = 1;
734 /* These flags are set to let us easily check
735 * an implied option later in the code. */
736 switch (*shortname) {
737 case 'r': case 'd': case 'l': case 'p':
738 case 't': case 'g': case 'o': case 'D':
739 refused_archive_part = op->val;
740 break;
741 case 'z':
742 refused_compress = op->val;
743 break;
744 case '\0':
745 if (wildmatch("delete", op->longName))
746 refused_delete = op->val;
747 else if (wildmatch("delete-before", op->longName))
748 refused_delete_before = op->val;
749 else if (wildmatch("delete-during", op->longName))
750 refused_delete_during = op->val;
751 else if (wildmatch("partial", op->longName))
752 refused_partial = op->val;
753 else if (wildmatch("progress", op->longName))
754 refused_progress = op->val;
755 else if (wildmatch("inplace", op->longName))
756 refused_inplace = op->val;
757 break;
758 }
759 if (!is_wild)
760 break;
761 }
762 }
763 if (!found_match) {
764 rprintf(FLOG, "No match for refuse-options string \"%s\"\n",
765 bp);
766 }
767 if (!cp)
768 break;
769 *cp = ' ';
770 bp = cp + 1;
771 }
772 }
773
774
775 static int count_args(const char **argv)
776 {
777 int i = 0;
778
779 if (argv) {
780 while (argv[i] != NULL)
781 i++;
782 }
783
784 return i;
785 }
786
787
788 static OFF_T parse_size_arg(char **size_arg, char def_suf)
789 {
790 int reps, mult, make_compatible = 0;
791 const char *arg;
792 OFF_T size = 1;
793
794 for (arg = *size_arg; isDigit(arg); arg++) {}
795 if (*arg == '.')
796 for (arg++; isDigit(arg); arg++) {}
797 switch (*arg && *arg != '+' && *arg != '-' ? *arg++ : def_suf) {
798 case 'b': case 'B':
799 reps = 0;
800 break;
801 case 'k': case 'K':
802 reps = 1;
803 break;
804 case 'm': case 'M':
805 reps = 2;
806 break;
807 case 'g': case 'G':
808 reps = 3;
809 break;
810 default:
811 return -1;
812 }
813 if (*arg == 'b' || *arg == 'B')
814 mult = 1000, make_compatible = 1, arg++;
815 else if (!*arg || *arg == '+' || *arg == '-')
816 mult = 1024;
817 else if (strncasecmp(arg, "ib", 2) == 0)
818 mult = 1024, arg += 2;
819 else
820 return -1;
821 while (reps--)
822 size *= mult;
823 size *= atof(*size_arg);
824 if ((*arg == '+' || *arg == '-') && arg[1] == '1')
825 size += atoi(arg), make_compatible = 1, arg += 2;
826 if (*arg)
827 return -1;
828 if (size > 0 && make_compatible) {
829 /* We convert this manually because we may need %lld precision,
830 * and that's not a portable sprintf() escape. */
831 char buf[128], *s = buf + sizeof buf - 1;
832 OFF_T num = size;
833 *s = '\0';
834 while (num) {
835 *--s = (char)(num % 10) + '0';
836 num /= 10;
837 }
838 if (!(*size_arg = strdup(s)))
839 out_of_memory("parse_size_arg");
840 }
841 return size;
842 }
843
844
845 static void create_refuse_error(int which)
846 {
847 /* The "which" value is the index + OPT_REFUSED_BASE. */
848 struct poptOption *op = &long_options[which - OPT_REFUSED_BASE];
849 int n = snprintf(err_buf, sizeof err_buf,
850 "The server is configured to refuse --%s\n",
851 op->longName) - 1;
852 if (op->shortName) {
853 snprintf(err_buf + n, sizeof err_buf - n,
854 " (-%c)\n", op->shortName);
855 }
856 }
857
858
859 /**
860 * Process command line arguments. Called on both local and remote.
861 *
862 * @retval 1 if all options are OK; with globals set to appropriate
863 * values
864 *
865 * @retval 0 on error, with err_buf containing an explanation
866 **/
867 int parse_arguments(int *argc_p, const char ***argv_p, int frommain)
868 {
869 static poptContext pc;
870 char *ref = lp_refuse_options(module_id);
871 const char *arg, **argv = *argv_p;
872 int argc = *argc_p;
873 int opt;
874
875 if (ref && *ref)
876 set_refuse_options(ref);
877 if (am_daemon)
878 set_refuse_options("log-file*");
879
880 #ifdef ICONV_OPTION
881 if (!am_daemon && !protect_args && (arg = getenv("RSYNC_ICONV")) != NULL && *arg)
882 iconv_opt = strdup(arg);
883 #endif
884
885 /* TODO: Call poptReadDefaultConfig; handle errors. */
886
887 /* The context leaks in case of an error, but if there's a
888 * problem we always exit anyhow. */
889 if (pc)
890 poptFreeContext(pc);
891 pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
892 if (!am_server)
893 poptReadDefaultConfig(pc, 0);
894
895 while ((opt = poptGetNextOpt(pc)) != -1) {
896 /* most options are handled automatically by popt;
897 * only special cases are returned and listed here. */
898
899 switch (opt) {
900 case OPT_VERSION:
901 print_rsync_version(FINFO);
902 exit_cleanup(0);
903
904 case OPT_SERVER:
905 if (!am_server) {
906 /* Disable popt aliases on the server side and
907 * then start parsing the options again. */
908 poptFreeContext(pc);
909 pc = poptGetContext(RSYNC_NAME, argc, argv,
910 long_options, 0);
911 am_server = 1;
912 }
913 #ifdef ICONV_OPTION
914 iconv_opt = NULL;
915 #endif
916 break;
917
918 case OPT_SENDER:
919 if (!am_server) {
920 usage(FERROR);
921 exit_cleanup(RERR_SYNTAX);
922 }
923 am_sender = 1;
924 break;
925
926 case OPT_DAEMON:
927 if (am_daemon) {
928 strlcpy(err_buf,
929 "Attempt to hack rsync thwarted!\n",
930 sizeof err_buf);
931 return 0;
932 }
933 #ifdef ICONV_OPTION
934 iconv_opt = NULL;
935 #endif
936 poptFreeContext(pc);
937 pc = poptGetContext(RSYNC_NAME, argc, argv,
938 long_daemon_options, 0);
939 while ((opt = poptGetNextOpt(pc)) != -1) {
940 switch (opt) {
941 case 'h':
942 daemon_usage(FINFO);
943 exit_cleanup(0);
944
945 case 'v':
946 verbose++;
947 break;
948
949 default:
950 rprintf(FERROR,
951 "rsync: %s: %s (in daemon mode)\n",
952 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
953 poptStrerror(opt));
954 goto daemon_error;
955 }
956 }
957
958 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
959 snprintf(err_buf, sizeof err_buf,
960 "the --temp-dir path is WAY too long.\n");
961 return 0;
962 }
963
964 if (!daemon_opt) {
965 rprintf(FERROR, "Daemon option(s) used without --daemon.\n");
966 daemon_error:
967 rprintf(FERROR,
968 "(Type \"rsync --daemon --help\" for assistance with daemon mode.)\n");
969 exit_cleanup(RERR_SYNTAX);
970 }
971
972 *argv_p = argv = poptGetArgs(pc);
973 *argc_p = argc = count_args(argv);
974 am_starting_up = 0;
975 daemon_opt = 0;
976 am_daemon = 1;
977 return 1;
978
979 case OPT_MODIFY_WINDOW:
980 /* The value has already been set by popt, but
981 * we need to remember that we're using a
982 * non-default setting. */
983 modify_window_set = 1;
984 break;
985
986 case OPT_FILTER:
987 parse_rule(&filter_list, poptGetOptArg(pc), 0, 0);
988 break;
989
990 case OPT_EXCLUDE:
991 parse_rule(&filter_list, poptGetOptArg(pc),
992 0, XFLG_OLD_PREFIXES);
993 break;
994
995 case OPT_INCLUDE:
996 parse_rule(&filter_list, poptGetOptArg(pc),
997 MATCHFLG_INCLUDE, XFLG_OLD_PREFIXES);
998 break;
999
1000 case OPT_EXCLUDE_FROM:
1001 case OPT_INCLUDE_FROM:
1002 arg = poptGetOptArg(pc);
1003 if (sanitize_paths)
1004 arg = sanitize_path(NULL, arg, NULL, 0);
1005 if (server_filter_list.head) {
1006 int rej;
1007 char *cp = strdup(arg);
1008 if (!cp)
1009 out_of_memory("parse_arguments");
1010 if (!*cp)
1011 goto options_rejected;
1012 clean_fname(cp, CFN_COLLAPSE_DOT_DOT_DIRS);
1013 rej = check_filter(&server_filter_list, cp, 0) < 0;
1014 free(cp);
1015 if (rej)
1016 goto options_rejected;
1017 }
1018 parse_filter_file(&filter_list, arg,
1019 opt == OPT_INCLUDE_FROM ? MATCHFLG_INCLUDE : 0,
1020 XFLG_FATAL_ERRORS | XFLG_OLD_PREFIXES);
1021 break;
1022
1023 case 'a':
1024 if (refused_archive_part) {
1025 create_refuse_error(refused_archive_part);
1026 return 0;
1027 }
1028 if (!recurse) /* preserve recurse == 2 */
1029 recurse = 1;
1030 #ifdef SUPPORT_LINKS
1031 preserve_links = 1;
1032 #endif
1033 preserve_perms = 1;
1034 preserve_times = 2;
1035 preserve_gid = 1;
1036 preserve_uid = 1;
1037 preserve_devices = 1;
1038 preserve_specials = 1;
1039 break;
1040
1041 case 'D':
1042 preserve_devices = preserve_specials = 1;
1043 break;
1044
1045 case OPT_NO_D:
1046 preserve_devices = preserve_specials = 0;
1047 break;
1048
1049 case 'h':
1050 human_readable++;
1051 break;
1052
1053 case 'H':
1054 preserve_hard_links++;
1055 break;
1056
1057 case 'i':
1058 itemize_changes++;
1059 break;
1060
1061 case 'v':
1062 verbose++;
1063 break;
1064
1065 case 'q':
1066 if (frommain)
1067 quiet++;
1068 break;
1069
1070 case 'x':
1071 one_file_system++;
1072 break;
1073
1074 case 'F':
1075 switch (++F_option_cnt) {
1076 case 1:
1077 parse_rule(&filter_list,": /.rsync-filter",0,0);
1078 break;
1079 case 2:
1080 parse_rule(&filter_list,"- .rsync-filter",0,0);
1081 break;
1082 }
1083 break;
1084
1085 case 'P':
1086 if (refused_partial || refused_progress) {
1087 create_refuse_error(refused_partial
1088 ? refused_partial : refused_progress);
1089 return 0;
1090 }
1091 do_progress = 1;
1092 keep_partial = 1;
1093 break;
1094
1095 case 'z':
1096 if (def_compress_level < Z_DEFAULT_COMPRESSION
1097 || def_compress_level > Z_BEST_COMPRESSION) {
1098 snprintf(err_buf, sizeof err_buf,
1099 "--compress-level value is invalid: %d\n",
1100 def_compress_level);
1101 return 0;
1102 }
1103 do_compression = def_compress_level != Z_NO_COMPRESSION;
1104 if (do_compression && refused_compress) {
1105 create_refuse_error(refused_compress);
1106 return 0;
1107 }
1108 break;
1109
1110 case OPT_WRITE_BATCH:
1111 /* batch_name is already set */
1112 write_batch = 1;
1113 break;
1114
1115 case OPT_ONLY_WRITE_BATCH:
1116 /* batch_name is already set */
1117 write_batch = -1;
1118 break;
1119
1120 case OPT_READ_BATCH:
1121 /* batch_name is already set */
1122 read_batch = 1;
1123 break;
1124
1125 case OPT_MAX_SIZE:
1126 if ((max_size = parse_size_arg(&max_size_arg, 'b')) <= 0) {
1127 snprintf(err_buf, sizeof err_buf,
1128 "--max-size value is invalid: %s\n",
1129 max_size_arg);
1130 return 0;
1131 }
1132 break;
1133
1134 case OPT_MIN_SIZE:
1135 if ((min_size = parse_size_arg(&min_size_arg, 'b')) <= 0) {
1136 snprintf(err_buf, sizeof err_buf,
1137 "--min-size value is invalid: %s\n",
1138 min_size_arg);
1139 return 0;
1140 }
1141 break;
1142
1143 case OPT_APPEND:
1144 if (am_server)
1145 append_mode++;
1146 else
1147 append_mode = 1;
1148 break;
1149
1150 case OPT_LINK_DEST:
1151 #ifdef SUPPORT_HARD_LINKS
1152 link_dest = 1;
1153 dest_option = "--link-dest";
1154 goto set_dest_dir;
1155 #else
1156 snprintf(err_buf, sizeof err_buf,
1157 "hard links are not supported on this %s\n",
1158 am_server ? "server" : "client");
1159 return 0;
1160 #endif
1161
1162 case OPT_COPY_DEST:
1163 copy_dest = 1;
1164 dest_option = "--copy-dest";
1165 goto set_dest_dir;
1166
1167 case OPT_COMPARE_DEST:
1168 compare_dest = 1;
1169 dest_option = "--compare-dest";
1170 set_dest_dir:
1171 if (basis_dir_cnt >= MAX_BASIS_DIRS) {
1172 snprintf(err_buf, sizeof err_buf,
1173 "ERROR: at most %d %s args may be specified\n",
1174 MAX_BASIS_DIRS, dest_option);
1175 return 0;
1176 }
1177 /* We defer sanitizing this arg until we know what
1178 * our destination directory is going to be. */
1179 basis_dir[basis_dir_cnt++] = (char *)poptGetOptArg(pc);
1180 break;
1181
1182 case OPT_CHMOD:
1183 arg = poptGetOptArg(pc);
1184 if (!parse_chmod(arg, &chmod_modes)) {
1185 snprintf(err_buf, sizeof err_buf,
1186 "Invalid argument passed to --chmod (%s)\n",
1187 arg);
1188 return 0;
1189 }
1190 break;
1191
1192 case OPT_HELP:
1193 usage(FINFO);
1194 exit_cleanup(0);
1195
1196 case 'A':
1197 #ifdef SUPPORT_ACLS
1198 preserve_acls = 1;
1199 preserve_perms = 1;
1200 break;
1201 #else
1202 /* FIXME: this should probably be ignored with a
1203 * warning and then countermeasures taken to
1204 * restrict group and other access in the presence
1205 * of any more restrictive ACLs, but this is safe
1206 * for now */
1207 snprintf(err_buf,sizeof(err_buf),
1208 "ACLs are not supported on this %s\n",
1209 am_server ? "server" : "client");
1210 return 0;
1211 #endif
1212
1213 case 'X':
1214 #ifdef SUPPORT_XATTRS
1215 preserve_xattrs++;
1216 break;
1217 #else
1218 snprintf(err_buf,sizeof(err_buf),
1219 "extended attributes are not supported on this %s\n",
1220 am_server ? "server" : "client");
1221 return 0;
1222 #endif
1223
1224 default:
1225 /* A large opt value means that set_refuse_options()
1226 * turned this option off. */
1227 if (opt >= OPT_REFUSED_BASE) {
1228 create_refuse_error(opt);
1229 return 0;
1230 }
1231 snprintf(err_buf, sizeof err_buf, "%s%s: %s\n",
1232 am_server ? "on remote machine: " : "",
1233 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1234 poptStrerror(opt));
1235 return 0;
1236 }
1237 }
1238
1239 if (human_readable && argc == 2) {
1240 /* Allow the old meaning of 'h' (--help) on its own. */
1241 usage(FINFO);
1242 exit_cleanup(0);
1243 }
1244
1245 #ifdef ICONV_OPTION
1246 if (iconv_opt && protect_args != 2) {
1247 if (!am_server && strcmp(iconv_opt, "-") == 0)
1248 iconv_opt = NULL;
1249 else
1250 need_unsorted_flist = 1;
1251 }
1252 #endif
1253
1254 if (protect_args == 1) {
1255 if (!frommain)
1256 protect_args = 0;
1257 else if (am_server)
1258 return 1;
1259 }
1260
1261 #ifndef SUPPORT_LINKS
1262 if (preserve_links && !am_sender) {
1263 snprintf(err_buf, sizeof err_buf,
1264 "symlinks are not supported on this %s\n",
1265 am_server ? "server" : "client");
1266 return 0;
1267 }
1268 #endif
1269
1270 #ifndef SUPPORT_HARD_LINKS
1271 if (preserve_hard_links) {
1272 snprintf(err_buf, sizeof err_buf,
1273 "hard links are not supported on this %s\n",
1274 am_server ? "server" : "client");
1275 return 0;
1276 }
1277 #endif
1278
1279 #ifndef SUPPORT_XATTRS
1280 if (am_root < 0) {
1281 snprintf(err_buf, sizeof err_buf,
1282 "--fake-super requires an rsync with extended attributes enabled\n");
1283 return 0;
1284 }
1285 #endif
1286
1287 if (write_batch && read_batch) {
1288 snprintf(err_buf, sizeof err_buf,
1289 "--write-batch and --read-batch can not be used together\n");
1290 return 0;
1291 }
1292 if (write_batch > 0 || read_batch) {
1293 if (am_server) {
1294 rprintf(FINFO,
1295 "ignoring --%s-batch option sent to server\n",
1296 write_batch ? "write" : "read");
1297 /* We don't actually exit_cleanup(), so that we can
1298 * still service older version clients that still send
1299 * batch args to server. */
1300 read_batch = write_batch = 0;
1301 batch_name = NULL;
1302 } else if (dry_run)
1303 write_batch = 0;
1304 }
1305 if (read_batch && files_from) {
1306 snprintf(err_buf, sizeof err_buf,
1307 "--read-batch cannot be used with --files-from\n");
1308 return 0;
1309 }
1310 if (batch_name && strlen(batch_name) > MAX_BATCH_NAME_LEN) {
1311 snprintf(err_buf, sizeof err_buf,
1312 "the batch-file name must be %d characters or less.\n",
1313 MAX_BATCH_NAME_LEN);
1314 return 0;
1315 }
1316
1317 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
1318 snprintf(err_buf, sizeof err_buf,
1319 "the --temp-dir path is WAY too long.\n");
1320 return 0;
1321 }
1322
1323 if (max_delete < 0 && max_delete != INT_MIN) {
1324 /* Negative numbers are treated as "no deletions". */
1325 max_delete = 0;
1326 }
1327
1328 if (compare_dest + copy_dest + link_dest > 1) {
1329 snprintf(err_buf, sizeof err_buf,
1330 "You may not mix --compare-dest, --copy-dest, and --link-dest.\n");
1331 return 0;
1332 }
1333
1334 if (files_from) {
1335 if (recurse == 1) /* preserve recurse == 2 */
1336 recurse = 0;
1337 if (xfer_dirs < 0)
1338 xfer_dirs = 1;
1339 }
1340
1341 if (xfer_dirs < 1)
1342 xfer_dirs = recurse || list_only;
1343
1344 if (relative_paths < 0)
1345 relative_paths = files_from? 1 : 0;
1346 if (!relative_paths)
1347 implied_dirs = 0;
1348
1349 if (delete_before + !!delete_during + delete_after > 1) {
1350 snprintf(err_buf, sizeof err_buf,
1351 "You may not combine multiple --delete-WHEN options.\n");
1352 return 0;
1353 }
1354 if (delete_before || delete_during || delete_after)
1355 delete_mode = 1;
1356 else if (delete_mode || delete_excluded) {
1357 /* Only choose now between before & during if one is refused. */
1358 if (refused_delete_before) {
1359 if (!refused_delete_during)
1360 delete_during = 1;
1361 else {
1362 create_refuse_error(refused_delete_before);
1363 return 0;
1364 }
1365 } else if (refused_delete_during)
1366 delete_before = 1;
1367 delete_mode = 1;
1368 }
1369 if (!xfer_dirs && delete_mode) {
1370 snprintf(err_buf, sizeof err_buf,
1371 "--delete does not work without -r or -d.\n");
1372 return 0;
1373 }
1374
1375 if (delete_mode && refused_delete) {
1376 create_refuse_error(refused_delete);
1377 return 0;
1378 }
1379
1380 if (remove_source_files) {
1381 /* We only want to infer this refusal of --remove-source-files
1382 * via the refusal of "delete", not any of the "delete-FOO"
1383 * options. */
1384 if (refused_delete && am_sender) {
1385 create_refuse_error(refused_delete);
1386 return 0;
1387 }
1388 need_messages_from_generator = 1;
1389 }
1390
1391 *argv_p = argv = poptGetArgs(pc);
1392 *argc_p = argc = count_args(argv);
1393
1394 if (sanitize_paths) {
1395 int i;
1396 for (i = argc; i-- > 0; )
1397 argv[i] = sanitize_path(NULL, argv[i], "", 0);
1398 if (tmpdir)
1399 tmpdir = sanitize_path(NULL, tmpdir, NULL, 0);
1400 if (backup_dir)
1401 backup_dir = sanitize_path(NULL, backup_dir, NULL, 0);
1402 }
1403 if (server_filter_list.head && !am_sender) {
1404 struct filter_list_struct *elp = &server_filter_list;
1405 if (tmpdir) {
1406 if (!*tmpdir)
1407 goto options_rejected;
1408 clean_fname(tmpdir, CFN_COLLAPSE_DOT_DOT_DIRS);
1409 if (check_filter(elp, tmpdir, 1) < 0)
1410 goto options_rejected;
1411 }
1412 if (backup_dir) {
1413 if (!*backup_dir)
1414 goto options_rejected;
1415 clean_fname(backup_dir, CFN_COLLAPSE_DOT_DOT_DIRS);
1416 if (check_filter(elp, backup_dir, 1) < 0)
1417 goto options_rejected;
1418 }
1419 }
1420
1421 if (!backup_suffix)
1422 backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
1423 backup_suffix_len = strlen(backup_suffix);
1424 if (strchr(backup_suffix, '/') != NULL) {
1425 snprintf(err_buf, sizeof err_buf,
1426 "--suffix cannot contain slashes: %s\n",
1427 backup_suffix);
1428 return 0;
1429 }
1430 if (backup_dir) {
1431 backup_dir_len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
1432 backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
1433 if (backup_dir_remainder < 32) {
1434 snprintf(err_buf, sizeof err_buf,
1435 "the --backup-dir path is WAY too long.\n");
1436 return 0;
1437 }
1438 if (backup_dir_buf[backup_dir_len - 1] != '/') {
1439 backup_dir_buf[backup_dir_len++] = '/';
1440 backup_dir_buf[backup_dir_len] = '\0';
1441 }
1442 if (verbose > 1 && !am_sender)
1443 rprintf(FINFO, "backup_dir is %s\n", backup_dir_buf);
1444 } else if (!backup_suffix_len && (!am_server || !am_sender)) {
1445 snprintf(err_buf, sizeof err_buf,
1446 "--suffix cannot be a null string without --backup-dir\n");
1447 return 0;
1448 } else if (make_backups && delete_mode && !delete_excluded && !am_server) {
1449 snprintf(backup_dir_buf, sizeof backup_dir_buf,
1450 "P *%s", backup_suffix);
1451 parse_rule(&filter_list, backup_dir_buf, 0, 0);
1452 }
1453
1454 if (make_backups && !backup_dir) {
1455 omit_dir_times = 0; /* Implied, so avoid -O to sender. */
1456 if (preserve_times > 1)
1457 preserve_times = 1;
1458 } else if (omit_dir_times) {
1459 if (preserve_times > 1)
1460 preserve_times = 1;
1461 }
1462
1463 if (stdout_format) {
1464 if (am_server && log_format_has(stdout_format, 'I'))
1465 stdout_format_has_i = 2;
1466 else if (log_format_has(stdout_format, 'i'))
1467 stdout_format_has_i = itemize_changes | 1;
1468 if (!log_format_has(stdout_format, 'b')
1469 && !log_format_has(stdout_format, 'c'))
1470 log_before_transfer = !am_server;
1471 } else if (itemize_changes) {
1472 stdout_format = "%i %n%L";
1473 stdout_format_has_i = itemize_changes;
1474 log_before_transfer = !am_server;
1475 }
1476
1477 if (do_progress && !verbose && !log_before_transfer && !am_server)
1478 verbose = 1;
1479
1480 if (dry_run)
1481 do_xfers = 0;
1482
1483 set_io_timeout(io_timeout);
1484
1485 if (verbose && !stdout_format) {
1486 stdout_format = "%n%L";
1487 log_before_transfer = !am_server;
1488 }
1489 if (stdout_format_has_i || log_format_has(stdout_format, 'o'))
1490 stdout_format_has_o_or_i = 1;
1491
1492 if (logfile_name && !am_daemon) {
1493 if (!logfile_format) {
1494 logfile_format = "%i %n%L";
1495 logfile_format_has_i = logfile_format_has_o_or_i = 1;
1496 } else {
1497 if (log_format_has(logfile_format, 'i'))
1498 logfile_format_has_i = 1;
1499 if (logfile_format_has_i || log_format_has(logfile_format, 'o'))
1500 logfile_format_has_o_or_i = 1;
1501 }
1502 log_init(0);
1503 } else if (!am_daemon)
1504 logfile_format = NULL;
1505
1506 if (daemon_bwlimit && (!bwlimit || bwlimit > daemon_bwlimit))
1507 bwlimit = daemon_bwlimit;
1508 if (bwlimit) {
1509 bwlimit_writemax = (size_t)bwlimit * 128;
1510 if (bwlimit_writemax < 512)
1511 bwlimit_writemax = 512;
1512 }
1513
1514 if (sparse_files && inplace) {
1515 /* Note: we don't check for this below, because --append is
1516 * OK with --sparse (as long as redos are handled right). */
1517 snprintf(err_buf, sizeof err_buf,
1518 "--sparse cannot be used with --inplace\n");
1519 return 0;
1520 }
1521
1522 if (append_mode) {
1523 if (whole_file > 0) {
1524 snprintf(err_buf, sizeof err_buf,
1525 "--append cannot be used with --whole-file\n");
1526 return 0;
1527 }
1528 if (refused_inplace) {
1529 create_refuse_error(refused_inplace);
1530 return 0;
1531 }
1532 inplace = 1;
1533 }
1534
1535 if (delay_updates && !partial_dir)
1536 partial_dir = tmp_partialdir;
1537
1538 if (inplace) {
1539 #ifdef HAVE_FTRUNCATE
1540 if (partial_dir) {
1541 snprintf(err_buf, sizeof err_buf,
1542 "--%s cannot be used with --%s\n",
1543 append_mode ? "append" : "inplace",
1544 delay_updates ? "delay-updates" : "partial-dir");
1545 return 0;
1546 }
1547 /* --inplace implies --partial for refusal purposes, but we
1548 * clear the keep_partial flag for internal logic purposes. */
1549 if (refused_partial) {
1550 create_refuse_error(refused_partial);
1551 return 0;
1552 }
1553 keep_partial = 0;
1554 #else
1555 snprintf(err_buf, sizeof err_buf,
1556 "--%s is not supported on this %s\n",
1557 append_mode ? "append" : "inplace",
1558 am_server ? "server" : "client");
1559 return 0;
1560 #endif
1561 } else {
1562 if (keep_partial && !partial_dir && !am_server) {
1563 if ((arg = getenv("RSYNC_PARTIAL_DIR")) != NULL && *arg)
1564 partial_dir = strdup(arg);
1565 }
1566 if (partial_dir) {
1567 if (*partial_dir)
1568 clean_fname(partial_dir, CFN_COLLAPSE_DOT_DOT_DIRS);
1569 if (!*partial_dir || strcmp(partial_dir, ".") == 0)
1570 partial_dir = NULL;
1571 if (!partial_dir && refused_partial) {
1572 create_refuse_error(refused_partial);
1573 return 0;
1574 }
1575 keep_partial = 1;
1576 }
1577 }
1578
1579 if (files_from) {
1580 char *h, *p;
1581 int q;
1582 if (argc > 2 || (!am_daemon && argc == 1)) {
1583 usage(FERROR);
1584 exit_cleanup(RERR_SYNTAX);
1585 }
1586 if (strcmp(files_from, "-") == 0) {
1587 filesfrom_fd = 0;
1588 if (am_server)
1589 filesfrom_host = ""; /* reading from socket */
1590 } else if ((p = check_for_hostspec(files_from, &h, &q)) != 0) {
1591 if (am_server) {
1592 snprintf(err_buf, sizeof err_buf,
1593 "The --files-from sent to the server cannot specify a host.\n");
1594 return 0;
1595 }
1596 files_from = p;
1597 filesfrom_host = h;
1598 if (strcmp(files_from, "-") == 0) {
1599 snprintf(err_buf, sizeof err_buf,
1600 "Invalid --files-from remote filename\n");
1601 return 0;
1602 }
1603 } else {
1604 if (sanitize_paths)
1605 files_from = sanitize_path(NULL, files_from, NULL, 0);
1606 if (server_filter_list.head) {
1607 if (!*files_from)
1608 goto options_rejected;
1609 clean_fname(files_from, CFN_COLLAPSE_DOT_DOT_DIRS);
1610 if (check_filter(&server_filter_list, files_from, 0) < 0)
1611 goto options_rejected;
1612 }
1613 filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
1614 if (filesfrom_fd < 0) {
1615 snprintf(err_buf, sizeof err_buf,
1616 "failed to open files-from file %s: %s\n",
1617 files_from, strerror(errno));
1618 return 0;
1619 }
1620 }
1621 }
1622
1623 am_starting_up = 0;
1624
1625 return 1;
1626
1627 options_rejected:
1628 snprintf(err_buf, sizeof err_buf,
1629 "Your options have been rejected by the server.\n");
1630 return 0;
1631 }
1632
1633
1634 /**
1635 * Construct a filtered list of options to pass through from the
1636 * client to the server.
1637 *
1638 * This involves setting options that will tell the server how to
1639 * behave, and also filtering out options that are processed only
1640 * locally.
1641 **/
1642 void server_options(char **args, int *argc_p)
1643 {
1644 static char argstr[64];
1645 int ac = *argc_p;
1646 char *arg;
1647 int i, x;
1648
1649 /* This should always remain first on the server's command-line. */
1650 args[ac++] = "--server";
1651
1652 if (daemon_over_rsh > 0) {
1653 args[ac++] = "--daemon";
1654 *argc_p = ac;
1655 /* if we're passing --daemon, we're done */
1656 return;
1657 }
1658
1659 if (!am_sender)
1660 args[ac++] = "--sender";
1661
1662 x = 1;
1663 argstr[0] = '-';
1664
1665 if (protect_args)
1666 argstr[x++] = 's';
1667
1668 for (i = 0; i < verbose; i++)
1669 argstr[x++] = 'v';
1670
1671 /* the -q option is intentionally left out */
1672 if (make_backups)
1673 argstr[x++] = 'b';
1674 if (update_only)
1675 argstr[x++] = 'u';
1676 if (!do_xfers) /* Note: NOT "dry_run"! */
1677 argstr[x++] = 'n';
1678 if (preserve_links)
1679 argstr[x++] = 'l';
1680 if ((list_only && !recurse) || xfer_dirs > 1
1681 || (xfer_dirs && !recurse && delete_mode && am_sender))
1682 argstr[x++] = 'd';
1683 if (am_sender) {
1684 if (keep_dirlinks)
1685 argstr[x++] = 'K';
1686 if (prune_empty_dirs)
1687 argstr[x++] = 'm';
1688 if (omit_dir_times)
1689 argstr[x++] = 'O';
1690 } else {
1691 if (copy_links)
1692 argstr[x++] = 'L';
1693 if (copy_dirlinks)
1694 argstr[x++] = 'k';
1695 }
1696
1697 if (whole_file > 0)
1698 argstr[x++] = 'W';
1699 /* We don't need to send --no-whole-file, because it's the
1700 * default for remote transfers, and in any case old versions
1701 * of rsync will not understand it. */
1702
1703 if (preserve_hard_links) {
1704 argstr[x++] = 'H';
1705 if (preserve_hard_links > 1)
1706 argstr[x++] = 'H';
1707 }
1708 if (preserve_uid)
1709 argstr[x++] = 'o';
1710 if (preserve_gid)
1711 argstr[x++] = 'g';
1712 if (preserve_devices) /* ignore preserve_specials here */
1713 argstr[x++] = 'D';
1714 if (preserve_times)
1715 argstr[x++] = 't';
1716 if (preserve_perms)
1717 argstr[x++] = 'p';
1718 else if (preserve_executability && am_sender)
1719 argstr[x++] = 'E';
1720 #ifdef SUPPORT_ACLS
1721 if (preserve_acls)
1722 argstr[x++] = 'A';
1723 #endif
1724 #ifdef SUPPORT_XATTRS
1725 if (preserve_xattrs) {
1726 argstr[x++] = 'X';
1727 if (preserve_xattrs > 1)
1728 argstr[x++] = 'X';
1729 }
1730 #endif
1731 if (recurse)
1732 argstr[x++] = 'r';
1733 if (always_checksum)
1734 argstr[x++] = 'c';
1735 if (cvs_exclude)
1736 argstr[x++] = 'C';
1737 if (ignore_times)
1738 argstr[x++] = 'I';
1739 if (relative_paths)
1740 argstr[x++] = 'R';
1741 if (one_file_system) {
1742 argstr[x++] = 'x';
1743 if (one_file_system > 1)
1744 argstr[x++] = 'x';
1745 }
1746 if (sparse_files)
1747 argstr[x++] = 'S';
1748 if (do_compression)
1749 argstr[x++] = 'z';
1750
1751 /* We make use of the -e option to let the server know about any
1752 * pre-release protocol version && our allow_inc_recurse status. */
1753 set_allow_inc_recurse();
1754 #if SUBPROTOCOL_VERSION != 0
1755 if (protocol_version == PROTOCOL_VERSION) {
1756 x += snprintf(argstr+x, sizeof argstr - x,
1757 "e%d.%d%s", PROTOCOL_VERSION, SUBPROTOCOL_VERSION,
1758 allow_inc_recurse ? "i" : "");
1759 } else
1760 #endif
1761 if (allow_inc_recurse) {
1762 argstr[x++] = 'e';
1763 argstr[x++] = 'i';
1764 }
1765
1766 argstr[x] = '\0';
1767
1768 if (x != 1)
1769 args[ac++] = argstr;
1770
1771 #ifdef ICONV_OPTION
1772 if (iconv_opt) {
1773 char *set = strchr(iconv_opt, ',');
1774 if (set)
1775 set++;
1776 else
1777 set = iconv_opt;
1778 if (asprintf(&arg, "--iconv=%s", set) < 0)
1779 goto oom;
1780 args[ac++] = arg;
1781 }
1782 #endif
1783
1784 if (protect_args) /* initial args break here */
1785 args[ac++] = NULL;
1786
1787 if (list_only > 1)
1788 args[ac++] = "--list-only";
1789
1790 /* This makes sure that the remote rsync can handle deleting with -d
1791 * sans -r because the --no-r option was added at the same time. */
1792 if (xfer_dirs && !recurse && delete_mode && am_sender)
1793 args[ac++] = "--no-r";
1794
1795 if (do_compression && def_compress_level != Z_DEFAULT_COMPRESSION) {
1796 if (asprintf(&arg, "--compress-level=%d", def_compress_level) < 0)
1797 goto oom;
1798 args[ac++] = arg;
1799 }
1800
1801 if (preserve_devices) {
1802 /* Note: sending "--devices" would not be backward-compatible. */
1803 if (!preserve_specials)
1804 args[ac++] = "--no-specials"; /* -D is already set. */
1805 } else if (preserve_specials)
1806 args[ac++] = "--specials";
1807
1808 /* The server side doesn't use our log-format, but in certain
1809 * circumstances they need to know a little about the option. */
1810 if (stdout_format && am_sender) {
1811 /* Use --log-format, not --out-format, for compatibility. */
1812 if (stdout_format_has_i > 1)
1813 args[ac++] = "--log-format=%i%I";
1814 else if (stdout_format_has_i)
1815 args[ac++] = "--log-format=%i";
1816 else if (stdout_format_has_o_or_i)
1817 args[ac++] = "--log-format=%o";
1818 else if (!verbose)
1819 args[ac++] = "--log-format=X";
1820 }
1821
1822 if (block_size) {
1823 if (asprintf(&arg, "-B%lu", block_size) < 0)
1824 goto oom;
1825 args[ac++] = arg;
1826 }
1827
1828 if (io_timeout) {
1829 if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
1830 goto oom;
1831 args[ac++] = arg;
1832 }
1833
1834 if (bwlimit) {
1835 if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
1836 goto oom;
1837 args[ac++] = arg;
1838 }
1839
1840 if (backup_dir) {
1841 args[ac++] = "--backup-dir";
1842 args[ac++] = backup_dir;
1843 }
1844
1845 /* Only send --suffix if it specifies a non-default value. */
1846 if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
1847 /* We use the following syntax to avoid weirdness with '~'. */
1848 if (asprintf(&arg, "--suffix=%s", backup_suffix) < 0)
1849 goto oom;
1850 args[ac++] = arg;
1851 }
1852
1853 if (am_sender) {
1854 if (max_delete > 0) {
1855 if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
1856 goto oom;
1857 args[ac++] = arg;
1858 } else if (max_delete == 0)
1859 args[ac++] = "--max-delete=-1";
1860 if (min_size) {
1861 args[ac++] = "--min-size";
1862 args[ac++] = min_size_arg;
1863 }
1864 if (max_size) {
1865 args[ac++] = "--max-size";
1866 args[ac++] = max_size_arg;
1867 }
1868 if (delete_before)
1869 args[ac++] = "--delete-before";
1870 else if (delete_during == 2)
1871 args[ac++] = "--delete-delay";
1872 else if (delete_during)
1873 args[ac++] = "--delete-during";
1874 else if (delete_after)
1875 args[ac++] = "--delete-after";
1876 else if (delete_mode && !delete_excluded)
1877 args[ac++] = "--delete";
1878 if (delete_excluded)
1879 args[ac++] = "--delete-excluded";
1880 if (force_delete)
1881 args[ac++] = "--force";
1882 if (write_batch < 0)
1883 args[ac++] = "--only-write-batch=X";
1884 if (am_root > 1)
1885 args[ac++] = "--super";
1886 if (size_only)
1887 args[ac++] = "--size-only";
1888 } else {
1889 if (skip_compress) {
1890 if (asprintf(&arg, "--skip-compress=%s", skip_compress) < 0)
1891 goto oom;
1892 args[ac++] = arg;
1893 }
1894 }
1895
1896 if (modify_window_set) {
1897 if (asprintf(&arg, "--modify-window=%d", modify_window) < 0)
1898 goto oom;
1899 args[ac++] = arg;
1900 }
1901
1902 if (checksum_seed) {
1903 if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
1904 goto oom;
1905 args[ac++] = arg;
1906 }
1907
1908 if (partial_dir && am_sender) {
1909 if (partial_dir != tmp_partialdir) {
1910 args[ac++] = "--partial-dir";
1911 args[ac++] = partial_dir;
1912 }
1913 if (delay_updates)
1914 args[ac++] = "--delay-updates";
1915 } else if (keep_partial && am_sender)
1916 args[ac++] = "--partial";
1917
1918 if (ignore_errors)
1919 args[ac++] = "--ignore-errors";
1920
1921 if (copy_unsafe_links)
1922 args[ac++] = "--copy-unsafe-links";
1923
1924 if (safe_symlinks)
1925 args[ac++] = "--safe-links";
1926
1927 if (numeric_ids)
1928 args[ac++] = "--numeric-ids";
1929
1930 if (use_qsort)
1931 args[ac++] = "--use-qsort";
1932
1933 if (am_sender) {
1934 if (ignore_existing)
1935 args[ac++] = "--ignore-existing";
1936
1937 /* Backward compatibility: send --existing, not --ignore-non-existing. */
1938 if (ignore_non_existing)
1939 args[ac++] = "--existing";
1940
1941 if (tmpdir) {
1942 args[ac++] = "--temp-dir";
1943 args[ac++] = tmpdir;
1944 }
1945
1946 if (basis_dir[0]) {
1947 /* the server only needs this option if it is not the sender,
1948 * and it may be an older version that doesn't know this
1949 * option, so don't send it if client is the sender.
1950 */
1951 int i;
1952 for (i = 0; i < basis_dir_cnt; i++) {
1953 args[ac++] = dest_option;
1954 args[ac++] = basis_dir[i];
1955 }
1956 }
1957 }
1958
1959 if (append_mode) {
1960 if (append_mode > 1)
1961 args[ac++] = "--append";
1962 args[ac++] = "--append";
1963 } else if (inplace)
1964 args[ac++] = "--inplace";
1965
1966 if (files_from && (!am_sender || filesfrom_host)) {
1967 if (filesfrom_host) {
1968 args[ac++] = "--files-from";
1969 args[ac++] = files_from;
1970 if (eol_nulls)
1971 args[ac++] = "--from0";
1972 } else {
1973 args[ac++] = "--files-from=-";
1974 args[ac++] = "--from0";
1975 }
1976 if (!relative_paths)
1977 args[ac++] = "--no-relative";
1978 }
1979 /* It's OK that this checks the upper-bound of the protocol_version. */
1980 if (relative_paths && !implied_dirs && (!am_sender || protocol_version >= 30))
1981 args[ac++] = "--no-implied-dirs";
1982
1983 if (fuzzy_basis && am_sender)
1984 args[ac++] = "--fuzzy";
1985
1986 if (remove_source_files == 1)
1987 args[ac++] = "--remove-source-files";
1988 else if (remove_source_files)
1989 args[ac++] = "--remove-sent-files";
1990
1991 *argc_p = ac;
1992 return;
1993
1994 oom:
1995 out_of_memory("server_options");
1996 }
1997
1998 /* Look for a HOST specfication of the form "HOST:PATH", "HOST::PATH", or
1999 * "rsync://HOST:PORT/PATH". If found, *host_ptr will be set to some allocated
2000 * memory with the HOST. If a daemon-accessing spec was specified, the value
2001 * of *port_ptr will contain a non-0 port number, otherwise it will be set to
2002 * 0. The return value is a pointer to the PATH. Note that the HOST spec can
2003 * be an IPv6 literal address enclosed in '[' and ']' (such as "[::1]" or
2004 * "[::ffff:127.0.0.1]") which is returned without the '[' and ']'. */
2005 char *check_for_hostspec(char *s, char **host_ptr, int *port_ptr)
2006 {
2007 char *p;
2008 int not_host;
2009 int hostlen;
2010
2011 if (port_ptr && strncasecmp(URL_PREFIX, s, strlen(URL_PREFIX)) == 0) {
2012 char *path;
2013 s += strlen(URL_PREFIX);
2014 if ((p = strchr(s, '/')) != NULL) {
2015 hostlen = p - s;
2016 path = p + 1;
2017 } else {
2018 hostlen = strlen(s);
2019 path = "";
2020 }
2021 if (*s == '[' && (p = strchr(s, ']')) != NULL) {
2022 s++;
2023 hostlen = p - s;
2024 if (p[1] == ':')
2025 *port_ptr = atoi(p+2);
2026 } else {
2027 if ((p = strchr(s, ':')) != NULL && p < s + hostlen) {
2028 hostlen = p - s;
2029 *port_ptr = atoi(p+1);
2030 }
2031 }
2032 if (!*port_ptr)
2033 *port_ptr = RSYNC_PORT;
2034 *host_ptr = new_array(char, hostlen + 1);
2035 strlcpy(*host_ptr, s, hostlen + 1);
2036 return path;
2037 }
2038
2039 if (*s == '[' && (p = strchr(s, ']')) != NULL && p[1] == ':') {
2040 s++;
2041 hostlen = p - s;
2042 *p = '\0';
2043 not_host = strchr(s, '/') || !strchr(s, ':');
2044 *p = ']';
2045 if (not_host)
2046 return NULL;
2047 p++;
2048 } else {
2049 if (!(p = strchr(s, ':')))
2050 return NULL;
2051 hostlen = p - s;
2052 *p = '\0';
2053 not_host = strchr(s, '/') != NULL;
2054 *p = ':';
2055 if (not_host)
2056 return NULL;
2057 }
2058
2059 *host_ptr = new_array(char, hostlen + 1);
2060 strlcpy(*host_ptr, s, hostlen + 1);
2061
2062 if (p[1] == ':') {
2063 if (port_ptr && !*port_ptr)
2064 *port_ptr = RSYNC_PORT;
2065 return p + 2;
2066 }
2067 if (port_ptr)
2068 *port_ptr = 0;
2069
2070 return p + 1;
2071 }
rsync: a fast, versatile, remote (and local) file-copying tool