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Avoid directory permission issues with --fake-super.
[rsync/qnx.git] / options.c
blob579c4308769d72533fcdbee7da095e6b83f0be23
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) 2002-2011 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 local_server;
29 extern int sanitize_paths;
30 extern int daemon_over_rsh;
31 extern unsigned int module_dirlen;
32 extern struct filter_list_struct filter_list;
33 extern struct filter_list_struct daemon_filter_list;
34
35 int make_backups = 0;
36
37 /**
38 * If 1, send the whole file as literal data rather than trying to
39 * create an incremental diff.
40 *
41 * If -1, then look at whether we're local or remote and go by that.
42 *
43 * @sa disable_deltas_p()
44 **/
45 int whole_file = -1;
46
47 int append_mode = 0;
48 int keep_dirlinks = 0;
49 int copy_dirlinks = 0;
50 int copy_links = 0;
51 int preserve_links = 0;
52 int preserve_hard_links = 0;
53 int preserve_acls = 0;
54 int preserve_xattrs = 0;
55 int preserve_perms = 0;
56 int preserve_executability = 0;
57 int preserve_devices = 0;
58 int preserve_specials = 0;
59 int preserve_uid = 0;
60 int preserve_gid = 0;
61 int preserve_times = 0;
62 int update_only = 0;
63 int cvs_exclude = 0;
64 int dry_run = 0;
65 int do_xfers = 1;
66 int ignore_times = 0;
67 int delete_mode = 0;
68 int delete_during = 0;
69 int delete_before = 0;
70 int delete_after = 0;
71 int delete_excluded = 0;
72 int remove_source_files = 0;
73 int one_file_system = 0;
74 int protocol_version = PROTOCOL_VERSION;
75 int sparse_files = 0;
76 int do_compression = 0;
77 int def_compress_level = Z_DEFAULT_COMPRESSION;
78 int am_root = 0; /* 0 = normal, 1 = root, 2 = --super, -1 = --fake-super */
79 int am_server = 0;
80 int am_sender = 0;
81 int am_starting_up = 1;
82 int relative_paths = -1;
83 int implied_dirs = 1;
84 int numeric_ids = 0;
85 int allow_8bit_chars = 0;
86 int force_delete = 0;
87 int io_timeout = 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 connect_timeout = 0;
103 int keep_partial = 0;
104 int safe_symlinks = 0;
105 int copy_unsafe_links = 0;
106 int size_only = 0;
107 int daemon_bwlimit = 0;
108 int bwlimit = 0;
109 int fuzzy_basis = 0;
110 size_t bwlimit_writemax = 0;
111 int ignore_existing = 0;
112 int ignore_non_existing = 0;
113 int need_messages_from_generator = 0;
114 int max_delete = INT_MIN;
115 OFF_T max_size = 0;
116 OFF_T min_size = 0;
117 int ignore_errors = 0;
118 int modify_window = 0;
119 int blocking_io = -1;
120 int checksum_seed = 0;
121 int inplace = 0;
122 int delay_updates = 0;
123 long block_size = 0; /* "long" because popt can't set an int32. */
124 char *skip_compress = NULL;
125
126 /** Network address family. **/
127 int default_af_hint
128 #ifdef INET6
129 = 0; /* Any protocol */
130 #else
131 = AF_INET; /* Must use IPv4 */
132 # ifdef AF_INET6
133 # undef AF_INET6
134 # endif
135 # define AF_INET6 AF_INET /* make -6 option a no-op */
136 #endif
137
138 /** Do not go into the background when run as --daemon. Good
139 * for debugging and required for running as a service on W32,
140 * or under Unix process-monitors. **/
141 int no_detach
142 #if defined _WIN32 || defined __WIN32__
143 = 1;
144 #else
145 = 0;
146 #endif
147
148 int write_batch = 0;
149 int read_batch = 0;
150 int backup_dir_len = 0;
151 int backup_suffix_len;
152 unsigned int backup_dir_remainder;
153
154 char *backup_suffix = NULL;
155 char *tmpdir = NULL;
156 char *partial_dir = NULL;
157 char *basis_dir[MAX_BASIS_DIRS+1];
158 char *config_file = NULL;
159 char *shell_cmd = NULL;
160 char *logfile_name = NULL;
161 char *logfile_format = NULL;
162 char *stdout_format = NULL;
163 char *password_file = NULL;
164 char *rsync_path = RSYNC_PATH;
165 char *backup_dir = NULL;
166 char backup_dir_buf[MAXPATHLEN];
167 char *sockopts = NULL;
168 int rsync_port = 0;
169 int compare_dest = 0;
170 int copy_dest = 0;
171 int link_dest = 0;
172 int basis_dir_cnt = 0;
173 char *dest_option = NULL;
174
175 int verbose = 0;
176 int quiet = 0;
177 int output_motd = 1;
178 int log_before_transfer = 0;
179 int stdout_format_has_i = 0;
180 int stdout_format_has_o_or_i = 0;
181 int logfile_format_has_i = 0;
182 int logfile_format_has_o_or_i = 0;
183 int always_checksum = 0;
184 int list_only = 0;
185
186 #define MAX_BATCH_NAME_LEN 256 /* Must be less than MAXPATHLEN-13 */
187 char *batch_name = NULL;
188
189 int need_unsorted_flist = 0;
190 #ifdef ICONV_OPTION
191 char *iconv_opt = ICONV_OPTION;
192 #endif
193
194 struct chmod_mode_struct *chmod_modes = NULL;
195
196 static int daemon_opt; /* sets am_daemon after option error-reporting */
197 static int omit_dir_times = 0;
198 static int F_option_cnt = 0;
199 static int modify_window_set;
200 static int itemize_changes = 0;
201 static int refused_delete, refused_archive_part, refused_compress;
202 static int refused_partial, refused_progress, refused_delete_before;
203 static int refused_delete_during;
204 static int refused_inplace, refused_no_iconv;
205 static char *max_size_arg, *min_size_arg;
206 static char tmp_partialdir[] = ".~tmp~";
207
208 /** Local address to bind. As a character string because it's
209 * interpreted by the IPv6 layer: should be a numeric IP4 or IP6
210 * address, or a hostname. **/
211 char *bind_address;
212
213
214 static void print_rsync_version(enum logcode f)
215 {
216 char *subprotocol = "";
217 char const *got_socketpair = "no ";
218 char const *have_inplace = "no ";
219 char const *hardlinks = "no ";
220 char const *symtimes = "no ";
221 char const *acls = "no ";
222 char const *xattrs = "no ";
223 char const *links = "no ";
224 char const *iconv = "no ";
225 char const *ipv6 = "no ";
226 STRUCT_STAT *dumstat;
227
228 #if SUBPROTOCOL_VERSION != 0
229 if (asprintf(&subprotocol, ".PR%d", SUBPROTOCOL_VERSION) < 0)
230 out_of_memory("print_rsync_version");
231 #endif
232 #ifdef HAVE_SOCKETPAIR
233 got_socketpair = "";
234 #endif
235 #ifdef HAVE_FTRUNCATE
236 have_inplace = "";
237 #endif
238 #ifdef SUPPORT_HARD_LINKS
239 hardlinks = "";
240 #endif
241 #ifdef SUPPORT_ACLS
242 acls = "";
243 #endif
244 #ifdef SUPPORT_XATTRS
245 xattrs = "";
246 #endif
247 #ifdef SUPPORT_LINKS
248 links = "";
249 #endif
250 #ifdef INET6
251 ipv6 = "";
252 #endif
253 #ifdef ICONV_OPTION
254 iconv = "";
255 #endif
256 #if defined HAVE_LUTIMES && defined HAVE_UTIMES
257 symtimes = "";
258 #endif
259
260 rprintf(f, "%s version %s protocol version %d%s\n",
261 RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION, subprotocol);
262 rprintf(f, "Copyright (C) 1996-2011 by Andrew Tridgell, Wayne Davison, and others.\n");
263 rprintf(f, "Web site: http://rsync.samba.org/\n");
264 rprintf(f, "Capabilities:\n");
265 rprintf(f, " %d-bit files, %d-bit inums, %d-bit timestamps, %d-bit long ints,\n",
266 (int)(sizeof (OFF_T) * 8),
267 (int)(sizeof dumstat->st_ino * 8), /* Don't check ino_t! */
268 (int)(sizeof (time_t) * 8),
269 (int)(sizeof (int64) * 8));
270 rprintf(f, " %ssocketpairs, %shardlinks, %ssymlinks, %sIPv6, batchfiles, %sinplace,\n",
271 got_socketpair, hardlinks, links, ipv6, have_inplace);
272 rprintf(f, " %sappend, %sACLs, %sxattrs, %siconv, %ssymtimes\n",
273 have_inplace, acls, xattrs, iconv, symtimes);
274
275 #ifdef MAINTAINER_MODE
276 rprintf(f, "Panic Action: \"%s\"\n", get_panic_action());
277 #endif
278
279 #if SIZEOF_INT64 < 8
280 rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
281 #endif
282 if (sizeof (int64) != SIZEOF_INT64) {
283 rprintf(f,
284 "WARNING: size mismatch in SIZEOF_INT64 define (%d != %d)\n",
285 (int) SIZEOF_INT64, (int) sizeof (int64));
286 }
287
288 rprintf(f,"\n");
289 rprintf(f,"rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n");
290 rprintf(f,"are welcome to redistribute it under certain conditions. See the GNU\n");
291 rprintf(f,"General Public Licence for details.\n");
292 }
293
294
295 void usage(enum logcode F)
296 {
297 print_rsync_version(F);
298
299 rprintf(F,"\n");
300 rprintf(F,"rsync is a file transfer program capable of efficient remote update\n");
301 rprintf(F,"via a fast differencing algorithm.\n");
302
303 rprintf(F,"\n");
304 rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... DEST\n");
305 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
306 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
307 rprintf(F," or rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST\n");
308 rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC [DEST]\n");
309 rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
310 rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
311 rprintf(F,"The ':' usages connect via remote shell, while '::' & 'rsync://' usages connect\n");
312 rprintf(F,"to an rsync daemon, and require SRC or DEST to start with a module name.\n");
313 rprintf(F,"\n");
314 rprintf(F,"Options\n");
315 rprintf(F," -v, --verbose increase verbosity\n");
316 rprintf(F," -q, --quiet suppress non-error messages\n");
317 rprintf(F," --no-motd suppress daemon-mode MOTD (see manpage caveat)\n");
318 rprintf(F," -c, --checksum skip based on checksum, not mod-time & size\n");
319 rprintf(F," -a, --archive archive mode; equals -rlptgoD (no -H,-A,-X)\n");
320 rprintf(F," --no-OPTION turn off an implied OPTION (e.g. --no-D)\n");
321 rprintf(F," -r, --recursive recurse into directories\n");
322 rprintf(F," -R, --relative use relative path names\n");
323 rprintf(F," --no-implied-dirs don't send implied dirs with --relative\n");
324 rprintf(F," -b, --backup make backups (see --suffix & --backup-dir)\n");
325 rprintf(F," --backup-dir=DIR make backups into hierarchy based in DIR\n");
326 rprintf(F," --suffix=SUFFIX set backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX);
327 rprintf(F," -u, --update skip files that are newer on the receiver\n");
328 rprintf(F," --inplace update destination files in-place (SEE MAN PAGE)\n");
329 rprintf(F," --append append data onto shorter files\n");
330 rprintf(F," --append-verify like --append, but with old data in file checksum\n");
331 rprintf(F," -d, --dirs transfer directories without recursing\n");
332 rprintf(F," -l, --links copy symlinks as symlinks\n");
333 rprintf(F," -L, --copy-links transform symlink into referent file/dir\n");
334 rprintf(F," --copy-unsafe-links only \"unsafe\" symlinks are transformed\n");
335 rprintf(F," --safe-links ignore symlinks that point outside the source tree\n");
336 rprintf(F," -k, --copy-dirlinks transform symlink to a dir into referent dir\n");
337 rprintf(F," -K, --keep-dirlinks treat symlinked dir on receiver as dir\n");
338 rprintf(F," -H, --hard-links preserve hard links\n");
339 rprintf(F," -p, --perms preserve permissions\n");
340 rprintf(F," -E, --executability preserve the file's executability\n");
341 rprintf(F," --chmod=CHMOD affect file and/or directory permissions\n");
342 #ifdef SUPPORT_ACLS
343 rprintf(F," -A, --acls preserve ACLs (implies --perms)\n");
344 #endif
345 #ifdef SUPPORT_XATTRS
346 rprintf(F," -X, --xattrs preserve extended attributes\n");
347 #endif
348 rprintf(F," -o, --owner preserve owner (super-user only)\n");
349 rprintf(F," -g, --group preserve group\n");
350 rprintf(F," --devices preserve device files (super-user only)\n");
351 rprintf(F," --specials preserve special files\n");
352 rprintf(F," -D same as --devices --specials\n");
353 rprintf(F," -t, --times preserve modification times\n");
354 rprintf(F," -O, --omit-dir-times omit directories from --times\n");
355 rprintf(F," --super receiver attempts super-user activities\n");
356 #ifdef SUPPORT_XATTRS
357 rprintf(F," --fake-super store/recover privileged attrs using xattrs\n");
358 #endif
359 rprintf(F," -S, --sparse handle sparse files efficiently\n");
360 rprintf(F," -n, --dry-run perform a trial run with no changes made\n");
361 rprintf(F," -W, --whole-file copy files whole (without delta-xfer algorithm)\n");
362 rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
363 rprintf(F," -B, --block-size=SIZE force a fixed checksum block-size\n");
364 rprintf(F," -e, --rsh=COMMAND specify the remote shell to use\n");
365 rprintf(F," --rsync-path=PROGRAM specify the rsync to run on the remote machine\n");
366 rprintf(F," --existing skip creating new files on receiver\n");
367 rprintf(F," --ignore-existing skip updating files that already exist on receiver\n");
368 rprintf(F," --remove-source-files sender removes synchronized files (non-dirs)\n");
369 rprintf(F," --del an alias for --delete-during\n");
370 rprintf(F," --delete delete extraneous files from destination dirs\n");
371 rprintf(F," --delete-before receiver deletes before transfer, not during\n");
372 rprintf(F," --delete-during receiver deletes during transfer (default)\n");
373 rprintf(F," --delete-delay find deletions during, delete after\n");
374 rprintf(F," --delete-after receiver deletes after transfer, not during\n");
375 rprintf(F," --delete-excluded also delete excluded files from destination dirs\n");
376 rprintf(F," --ignore-errors delete even if there are I/O errors\n");
377 rprintf(F," --force force deletion of directories even if not empty\n");
378 rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
379 rprintf(F," --max-size=SIZE don't transfer any file larger than SIZE\n");
380 rprintf(F," --min-size=SIZE don't transfer any file smaller than SIZE\n");
381 rprintf(F," --partial keep partially transferred files\n");
382 rprintf(F," --partial-dir=DIR put a partially transferred file into DIR\n");
383 rprintf(F," --delay-updates put all updated files into place at transfer's end\n");
384 rprintf(F," -m, --prune-empty-dirs prune empty directory chains from the file-list\n");
385 rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
386 rprintf(F," --timeout=SECONDS set I/O timeout in seconds\n");
387 rprintf(F," --contimeout=SECONDS set daemon connection timeout in seconds\n");
388 rprintf(F," -I, --ignore-times don't skip files that match in size and mod-time\n");
389 rprintf(F," --size-only skip files that match in size\n");
390 rprintf(F," --modify-window=NUM compare mod-times with reduced accuracy\n");
391 rprintf(F," -T, --temp-dir=DIR create temporary files in directory DIR\n");
392 rprintf(F," -y, --fuzzy find similar file for basis if no dest file\n");
393 rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
394 rprintf(F," --copy-dest=DIR ... and include copies of unchanged files\n");
395 rprintf(F," --link-dest=DIR hardlink to files in DIR when unchanged\n");
396 rprintf(F," -z, --compress compress file data during the transfer\n");
397 rprintf(F," --compress-level=NUM explicitly set compression level\n");
398 rprintf(F," --skip-compress=LIST skip compressing files with a suffix in LIST\n");
399 rprintf(F," -C, --cvs-exclude auto-ignore files the same way CVS does\n");
400 rprintf(F," -f, --filter=RULE add a file-filtering RULE\n");
401 rprintf(F," -F same as --filter='dir-merge /.rsync-filter'\n");
402 rprintf(F," repeated: --filter='- .rsync-filter'\n");
403 rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
404 rprintf(F," --exclude-from=FILE read exclude patterns from FILE\n");
405 rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
406 rprintf(F," --include-from=FILE read include patterns from FILE\n");
407 rprintf(F," --files-from=FILE read list of source-file names from FILE\n");
408 rprintf(F," -0, --from0 all *-from/filter files are delimited by 0s\n");
409 rprintf(F," -s, --protect-args no space-splitting; only wildcard special-chars\n");
410 rprintf(F," --address=ADDRESS bind address for outgoing socket to daemon\n");
411 rprintf(F," --port=PORT specify double-colon alternate port number\n");
412 rprintf(F," --sockopts=OPTIONS specify custom TCP options\n");
413 rprintf(F," --blocking-io use blocking I/O for the remote shell\n");
414 rprintf(F," --stats give some file-transfer stats\n");
415 rprintf(F," -8, --8-bit-output leave high-bit chars unescaped in output\n");
416 rprintf(F," -h, --human-readable output numbers in a human-readable format\n");
417 rprintf(F," --progress show progress during transfer\n");
418 rprintf(F," -P same as --partial --progress\n");
419 rprintf(F," -i, --itemize-changes output a change-summary for all updates\n");
420 rprintf(F," --out-format=FORMAT output updates using the specified FORMAT\n");
421 rprintf(F," --log-file=FILE log what we're doing to the specified FILE\n");
422 rprintf(F," --log-file-format=FMT log updates using the specified FMT\n");
423 rprintf(F," --password-file=FILE read daemon-access password from FILE\n");
424 rprintf(F," --list-only list the files instead of copying them\n");
425 rprintf(F," --bwlimit=KBPS limit I/O bandwidth; KBytes per second\n");
426 rprintf(F," --write-batch=FILE write a batched update to FILE\n");
427 rprintf(F," --only-write-batch=FILE like --write-batch but w/o updating destination\n");
428 rprintf(F," --read-batch=FILE read a batched update from FILE\n");
429 rprintf(F," --protocol=NUM force an older protocol version to be used\n");
430 #ifdef ICONV_OPTION
431 rprintf(F," --iconv=CONVERT_SPEC request charset conversion of filenames\n");
432 #endif
433 rprintf(F," -4, --ipv4 prefer IPv4\n");
434 rprintf(F," -6, --ipv6 prefer IPv6\n");
435 rprintf(F," --version print version number\n");
436 rprintf(F,"(-h) --help show this help (-h works with no other options)\n");
437
438 rprintf(F,"\n");
439 rprintf(F,"Use \"rsync --daemon --help\" to see the daemon-mode command-line options.\n");
440 rprintf(F,"Please see the rsync(1) and rsyncd.conf(5) man pages for full documentation.\n");
441 rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
442 }
443
444 enum {OPT_VERSION = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
445 OPT_FILTER, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST, OPT_HELP,
446 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW, OPT_MIN_SIZE, OPT_CHMOD,
447 OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_ONLY_WRITE_BATCH, OPT_MAX_SIZE,
448 OPT_NO_D, OPT_APPEND, OPT_NO_ICONV,
449 OPT_SERVER, OPT_REFUSED_BASE = 9000};
450
451 static struct poptOption long_options[] = {
452 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
453 {"help", 0, POPT_ARG_NONE, 0, OPT_HELP, 0, 0 },
454 {"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0},
455 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
456 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
457 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
458 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
459 {"motd", 0, POPT_ARG_VAL, &output_motd, 1, 0, 0 },
460 {"no-motd", 0, POPT_ARG_VAL, &output_motd, 0, 0, 0 },
461 {"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
462 {"human-readable", 'h', POPT_ARG_NONE, 0, 'h', 0, 0},
463 {"no-human-readable",0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
464 {"no-h", 0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
465 {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
466 {"archive", 'a', POPT_ARG_NONE, 0, 'a', 0, 0 },
467 {"recursive", 'r', POPT_ARG_VAL, &recurse, 2, 0, 0 },
468 {"no-recursive", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
469 {"no-r", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
470 {"inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
471 {"no-inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
472 {"i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
473 {"no-i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
474 {"dirs", 'd', POPT_ARG_VAL, &xfer_dirs, 2, 0, 0 },
475 {"no-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
476 {"no-d", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
477 {"old-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
478 {"old-d", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
479 {"perms", 'p', POPT_ARG_VAL, &preserve_perms, 1, 0, 0 },
480 {"no-perms", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
481 {"no-p", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
482 {"executability", 'E', POPT_ARG_NONE, &preserve_executability, 0, 0, 0 },
483 {"acls", 'A', POPT_ARG_NONE, 0, 'A', 0, 0 },
484 {"no-acls", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
485 {"no-A", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
486 {"xattrs", 'X', POPT_ARG_NONE, 0, 'X', 0, 0 },
487 {"no-xattrs", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
488 {"no-X", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
489 {"times", 't', POPT_ARG_VAL, &preserve_times, 2, 0, 0 },
490 {"no-times", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 },
491 {"no-t", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 },
492 {"omit-dir-times", 'O', POPT_ARG_VAL, &omit_dir_times, 1, 0, 0 },
493 {"no-omit-dir-times",0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
494 {"no-O", 0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
495 {"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
496 {"super", 0, POPT_ARG_VAL, &am_root, 2, 0, 0 },
497 {"no-super", 0, POPT_ARG_VAL, &am_root, 0, 0, 0 },
498 {"fake-super", 0, POPT_ARG_VAL, &am_root, -1, 0, 0 },
499 {"owner", 'o', POPT_ARG_VAL, &preserve_uid, 1, 0, 0 },
500 {"no-owner", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
501 {"no-o", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
502 {"group", 'g', POPT_ARG_VAL, &preserve_gid, 1, 0, 0 },
503 {"no-group", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
504 {"no-g", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
505 {0, 'D', POPT_ARG_NONE, 0, 'D', 0, 0 },
506 {"no-D", 0, POPT_ARG_NONE, 0, OPT_NO_D, 0, 0 },
507 {"devices", 0, POPT_ARG_VAL, &preserve_devices, 1, 0, 0 },
508 {"no-devices", 0, POPT_ARG_VAL, &preserve_devices, 0, 0, 0 },
509 {"specials", 0, POPT_ARG_VAL, &preserve_specials, 1, 0, 0 },
510 {"no-specials", 0, POPT_ARG_VAL, &preserve_specials, 0, 0, 0 },
511 {"links", 'l', POPT_ARG_VAL, &preserve_links, 1, 0, 0 },
512 {"no-links", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
513 {"no-l", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
514 {"copy-links", 'L', POPT_ARG_NONE, &copy_links, 0, 0, 0 },
515 {"copy-unsafe-links",0, POPT_ARG_NONE, &copy_unsafe_links, 0, 0, 0 },
516 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
517 {"copy-dirlinks", 'k', POPT_ARG_NONE, &copy_dirlinks, 0, 0, 0 },
518 {"keep-dirlinks", 'K', POPT_ARG_NONE, &keep_dirlinks, 0, 0, 0 },
519 {"hard-links", 'H', POPT_ARG_NONE, 0, 'H', 0, 0 },
520 {"no-hard-links", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
521 {"no-H", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
522 {"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 },
523 {"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
524 {"no-R", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
525 {"implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
526 {"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
527 {"i-d", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
528 {"no-i-d", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
529 {"chmod", 0, POPT_ARG_STRING, 0, OPT_CHMOD, 0, 0 },
530 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 },
531 {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 },
532 {"one-file-system", 'x', POPT_ARG_NONE, 0, 'x', 0, 0 },
533 {"no-one-file-system",0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
534 {"no-x", 0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
535 {"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 },
536 {"existing", 0, POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
537 {"ignore-non-existing",0,POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
538 {"ignore-existing", 0, POPT_ARG_NONE, &ignore_existing, 0, 0, 0 },
539 {"max-size", 0, POPT_ARG_STRING, &max_size_arg, OPT_MAX_SIZE, 0, 0 },
540 {"min-size", 0, POPT_ARG_STRING, &min_size_arg, OPT_MIN_SIZE, 0, 0 },
541 {"sparse", 'S', POPT_ARG_VAL, &sparse_files, 1, 0, 0 },
542 {"no-sparse", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
543 {"no-S", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
544 {"inplace", 0, POPT_ARG_VAL, &inplace, 1, 0, 0 },
545 {"no-inplace", 0, POPT_ARG_VAL, &inplace, 0, 0, 0 },
546 {"append", 0, POPT_ARG_NONE, 0, OPT_APPEND, 0, 0 },
547 {"append-verify", 0, POPT_ARG_VAL, &append_mode, 2, 0, 0 },
548 {"no-append", 0, POPT_ARG_VAL, &append_mode, 0, 0, 0 },
549 {"del", 0, POPT_ARG_NONE, &delete_during, 0, 0, 0 },
550 {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
551 {"delete-before", 0, POPT_ARG_NONE, &delete_before, 0, 0, 0 },
552 {"delete-during", 0, POPT_ARG_VAL, &delete_during, 1, 0, 0 },
553 {"delete-delay", 0, POPT_ARG_VAL, &delete_during, 2, 0, 0 },
554 {"delete-after", 0, POPT_ARG_NONE, &delete_after, 0, 0, 0 },
555 {"delete-excluded", 0, POPT_ARG_NONE, &delete_excluded, 0, 0, 0 },
556 {"remove-sent-files",0, POPT_ARG_VAL, &remove_source_files, 2, 0, 0 }, /* deprecated */
557 {"remove-source-files",0,POPT_ARG_VAL, &remove_source_files, 1, 0, 0 },
558 {"force", 0, POPT_ARG_VAL, &force_delete, 1, 0, 0 },
559 {"no-force", 0, POPT_ARG_VAL, &force_delete, 0, 0, 0 },
560 {"ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 1, 0, 0 },
561 {"no-ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 0, 0, 0 },
562 {"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
563 {0, 'F', POPT_ARG_NONE, 0, 'F', 0, 0 },
564 {"filter", 'f', POPT_ARG_STRING, 0, OPT_FILTER, 0, 0 },
565 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
566 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
567 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
568 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
569 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
570 {"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
571 {"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
572 {"no-W", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
573 {"checksum", 'c', POPT_ARG_VAL, &always_checksum, 1, 0, 0 },
574 {"no-checksum", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
575 {"no-c", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
576 {"block-size", 'B', POPT_ARG_LONG, &block_size, 0, 0, 0 },
577 {"compare-dest", 0, POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 },
578 {"copy-dest", 0, POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 },
579 {"link-dest", 0, POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 },
580 {"fuzzy", 'y', POPT_ARG_VAL, &fuzzy_basis, 1, 0, 0 },
581 {"no-fuzzy", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
582 {"no-y", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
583 {"compress", 'z', POPT_ARG_NONE, 0, 'z', 0, 0 },
584 {"no-compress", 0, POPT_ARG_VAL, &do_compression, 0, 0, 0 },
585 {"no-z", 0, POPT_ARG_VAL, &do_compression, 0, 0, 0 },
586 {"skip-compress", 0, POPT_ARG_STRING, &skip_compress, 0, 0, 0 },
587 {"compress-level", 0, POPT_ARG_INT, &def_compress_level, 'z', 0, 0 },
588 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
589 {"progress", 0, POPT_ARG_VAL, &do_progress, 1, 0, 0 },
590 {"no-progress", 0, POPT_ARG_VAL, &do_progress, 0, 0, 0 },
591 {"partial", 0, POPT_ARG_VAL, &keep_partial, 1, 0, 0 },
592 {"no-partial", 0, POPT_ARG_VAL, &keep_partial, 0, 0, 0 },
593 {"partial-dir", 0, POPT_ARG_STRING, &partial_dir, 0, 0, 0 },
594 {"delay-updates", 0, POPT_ARG_VAL, &delay_updates, 1, 0, 0 },
595 {"no-delay-updates", 0, POPT_ARG_VAL, &delay_updates, 0, 0, 0 },
596 {"prune-empty-dirs",'m', POPT_ARG_VAL, &prune_empty_dirs, 1, 0, 0 },
597 {"no-prune-empty-dirs",0,POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
598 {"no-m", 0, POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
599 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
600 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
601 {"out-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 },
602 {"log-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 }, /* DEPRECATED */
603 {"itemize-changes", 'i', POPT_ARG_NONE, 0, 'i', 0, 0 },
604 {"no-itemize-changes",0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
605 {"no-i", 0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
606 {"bwlimit", 0, POPT_ARG_INT, &bwlimit, 0, 0, 0 },
607 {"no-bwlimit", 0, POPT_ARG_VAL, &bwlimit, 0, 0, 0 },
608 {"backup", 'b', POPT_ARG_VAL, &make_backups, 1, 0, 0 },
609 {"no-backup", 0, POPT_ARG_VAL, &make_backups, 0, 0, 0 },
610 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
611 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
612 {"list-only", 0, POPT_ARG_VAL, &list_only, 2, 0, 0 },
613 {"read-batch", 0, POPT_ARG_STRING, &batch_name, OPT_READ_BATCH, 0, 0 },
614 {"write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_WRITE_BATCH, 0, 0 },
615 {"only-write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_ONLY_WRITE_BATCH, 0, 0 },
616 {"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
617 {"from0", '0', POPT_ARG_VAL, &eol_nulls, 1, 0, 0},
618 {"no-from0", 0, POPT_ARG_VAL, &eol_nulls, 0, 0, 0},
619 {"protect-args", 's', POPT_ARG_VAL, &protect_args, 1, 0, 0},
620 {"no-protect-args", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
621 {"no-s", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
622 {"numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 1, 0, 0 },
623 {"no-numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 0, 0, 0 },
624 {"timeout", 0, POPT_ARG_INT, &io_timeout, 0, 0, 0 },
625 {"no-timeout", 0, POPT_ARG_VAL, &io_timeout, 0, 0, 0 },
626 {"contimeout", 0, POPT_ARG_INT, &connect_timeout, 0, 0, 0 },
627 {"no-contimeout", 0, POPT_ARG_VAL, &connect_timeout, 0, 0, 0 },
628 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
629 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
630 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
631 #ifdef ICONV_OPTION
632 {"iconv", 0, POPT_ARG_STRING, &iconv_opt, 0, 0, 0 },
633 {"no-iconv", 0, POPT_ARG_NONE, 0, OPT_NO_ICONV, 0, 0 },
634 #endif
635 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
636 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
637 {"8-bit-output", '8', POPT_ARG_VAL, &allow_8bit_chars, 1, 0, 0 },
638 {"no-8-bit-output", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
639 {"no-8", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
640 {"qsort", 0, POPT_ARG_NONE, &use_qsort, 0, 0, 0 },
641 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
642 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
643 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
644 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
645 {"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
646 {"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
647 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
648 {"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 },
649 {"server", 0, POPT_ARG_NONE, 0, OPT_SERVER, 0, 0 },
650 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
651 /* All the following options switch us into daemon-mode option-parsing. */
652 {"config", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
653 {"daemon", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
654 {"detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
655 {"no-detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
656 {0,0,0,0, 0, 0, 0}
657 };
658
659 static void daemon_usage(enum logcode F)
660 {
661 print_rsync_version(F);
662
663 rprintf(F,"\n");
664 rprintf(F,"Usage: rsync --daemon [OPTION]...\n");
665 rprintf(F," --address=ADDRESS bind to the specified address\n");
666 rprintf(F," --bwlimit=KBPS limit I/O bandwidth; KBytes per second\n");
667 rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
668 rprintf(F," --no-detach do not detach from the parent\n");
669 rprintf(F," --port=PORT listen on alternate port number\n");
670 rprintf(F," --log-file=FILE override the \"log file\" setting\n");
671 rprintf(F," --log-file-format=FMT override the \"log format\" setting\n");
672 rprintf(F," --sockopts=OPTIONS specify custom TCP options\n");
673 rprintf(F," -v, --verbose increase verbosity\n");
674 rprintf(F," -4, --ipv4 prefer IPv4\n");
675 rprintf(F," -6, --ipv6 prefer IPv6\n");
676 rprintf(F," --help show this help screen\n");
677
678 rprintf(F,"\n");
679 rprintf(F,"If you were not trying to invoke rsync as a daemon, avoid using any of the\n");
680 rprintf(F,"daemon-specific rsync options. See also the rsyncd.conf(5) man page.\n");
681 }
682
683 static struct poptOption long_daemon_options[] = {
684 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
685 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
686 {"bwlimit", 0, POPT_ARG_INT, &daemon_bwlimit, 0, 0, 0 },
687 {"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
688 {"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
689 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
690 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
691 {"detach", 0, POPT_ARG_VAL, &no_detach, 0, 0, 0 },
692 {"no-detach", 0, POPT_ARG_VAL, &no_detach, 1, 0, 0 },
693 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
694 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
695 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
696 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
697 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
698 {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
699 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
700 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
701 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
702 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
703 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
704 {0,0,0,0, 0, 0, 0}
705 };
706
707
708 static char err_buf[200];
709
710
711 /**
712 * Store the option error message, if any, so that we can log the
713 * connection attempt (which requires parsing the options), and then
714 * show the error later on.
715 **/
716 void option_error(void)
717 {
718 if (!err_buf[0]) {
719 strlcpy(err_buf, "Error parsing options: option may "
720 "be supported on client but not on server?\n",
721 sizeof err_buf);
722 }
723
724 rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
725 msleep(20);
726 }
727
728
729 /**
730 * Tweak the option table to disable all options that the rsyncd.conf
731 * file has told us to refuse.
732 **/
733 static void set_refuse_options(char *bp)
734 {
735 struct poptOption *op;
736 char *cp, shortname[2];
737 int is_wild, found_match;
738
739 shortname[1] = '\0';
740
741 while (1) {
742 while (*bp == ' ') bp++;
743 if (!*bp)
744 break;
745 if ((cp = strchr(bp, ' ')) != NULL)
746 *cp= '\0';
747 is_wild = strpbrk(bp, "*?[") != NULL;
748 found_match = 0;
749 for (op = long_options; ; op++) {
750 *shortname = op->shortName;
751 if (!op->longName && !*shortname)
752 break;
753 if ((op->longName && wildmatch(bp, op->longName))
754 || (*shortname && wildmatch(bp, shortname))) {
755 if (op->argInfo == POPT_ARG_VAL)
756 op->argInfo = POPT_ARG_NONE;
757 op->val = (op - long_options) + OPT_REFUSED_BASE;
758 found_match = 1;
759 /* These flags are set to let us easily check
760 * an implied option later in the code. */
761 switch (*shortname) {
762 case 'r': case 'd': case 'l': case 'p':
763 case 't': case 'g': case 'o': case 'D':
764 refused_archive_part = op->val;
765 break;
766 case 'z':
767 refused_compress = op->val;
768 break;
769 case '\0':
770 if (wildmatch("delete", op->longName))
771 refused_delete = op->val;
772 else if (wildmatch("delete-before", op->longName))
773 refused_delete_before = op->val;
774 else if (wildmatch("delete-during", op->longName))
775 refused_delete_during = op->val;
776 else if (wildmatch("partial", op->longName))
777 refused_partial = op->val;
778 else if (wildmatch("progress", op->longName))
779 refused_progress = op->val;
780 else if (wildmatch("inplace", op->longName))
781 refused_inplace = op->val;
782 else if (wildmatch("no-iconv", op->longName))
783 refused_no_iconv = op->val;
784 break;
785 }
786 if (!is_wild)
787 break;
788 }
789 }
790 if (!found_match) {
791 rprintf(FLOG, "No match for refuse-options string \"%s\"\n",
792 bp);
793 }
794 if (!cp)
795 break;
796 *cp = ' ';
797 bp = cp + 1;
798 }
799 }
800
801
802 static int count_args(const char **argv)
803 {
804 int i = 0;
805
806 if (argv) {
807 while (argv[i] != NULL)
808 i++;
809 }
810
811 return i;
812 }
813
814
815 static OFF_T parse_size_arg(char **size_arg, char def_suf)
816 {
817 int reps, mult, make_compatible = 0;
818 const char *arg;
819 OFF_T size = 1;
820
821 for (arg = *size_arg; isDigit(arg); arg++) {}
822 if (*arg == '.')
823 for (arg++; isDigit(arg); arg++) {}
824 switch (*arg && *arg != '+' && *arg != '-' ? *arg++ : def_suf) {
825 case 'b': case 'B':
826 reps = 0;
827 break;
828 case 'k': case 'K':
829 reps = 1;
830 break;
831 case 'm': case 'M':
832 reps = 2;
833 break;
834 case 'g': case 'G':
835 reps = 3;
836 break;
837 default:
838 return -1;
839 }
840 if (*arg == 'b' || *arg == 'B')
841 mult = 1000, make_compatible = 1, arg++;
842 else if (!*arg || *arg == '+' || *arg == '-')
843 mult = 1024;
844 else if (strncasecmp(arg, "ib", 2) == 0)
845 mult = 1024, arg += 2;
846 else
847 return -1;
848 while (reps--)
849 size *= mult;
850 size *= atof(*size_arg);
851 if ((*arg == '+' || *arg == '-') && arg[1] == '1')
852 size += atoi(arg), make_compatible = 1, arg += 2;
853 if (*arg)
854 return -1;
855 if (size > 0 && make_compatible) {
856 /* We convert this manually because we may need %lld precision,
857 * and that's not a portable sprintf() escape. */
858 char buf[128], *s = buf + sizeof buf - 1;
859 OFF_T num = size;
860 *s = '\0';
861 while (num) {
862 *--s = (char)(num % 10) + '0';
863 num /= 10;
864 }
865 if (!(*size_arg = strdup(s)))
866 out_of_memory("parse_size_arg");
867 }
868 return size;
869 }
870
871
872 static void create_refuse_error(int which)
873 {
874 /* The "which" value is the index + OPT_REFUSED_BASE. */
875 struct poptOption *op = &long_options[which - OPT_REFUSED_BASE];
876 int n = snprintf(err_buf, sizeof err_buf,
877 "The server is configured to refuse --%s\n",
878 op->longName) - 1;
879 if (op->shortName) {
880 snprintf(err_buf + n, sizeof err_buf - n,
881 " (-%c)\n", op->shortName);
882 }
883 }
884
885
886 /**
887 * Process command line arguments. Called on both local and remote.
888 *
889 * @retval 1 if all options are OK; with globals set to appropriate
890 * values
891 *
892 * @retval 0 on error, with err_buf containing an explanation
893 **/
894 int parse_arguments(int *argc_p, const char ***argv_p)
895 {
896 static poptContext pc;
897 char *ref = lp_refuse_options(module_id);
898 const char *arg, **argv = *argv_p;
899 int argc = *argc_p;
900 int opt;
901
902 if (ref && *ref)
903 set_refuse_options(ref);
904 if (am_daemon) {
905 set_refuse_options("log-file*");
906 #ifdef ICONV_OPTION
907 if (!*lp_charset(module_id))
908 set_refuse_options("iconv");
909 #endif
910 }
911
912 #ifdef ICONV_OPTION
913 if (!am_daemon && !protect_args && (arg = getenv("RSYNC_ICONV")) != NULL && *arg)
914 iconv_opt = strdup(arg);
915 #endif
916
917 /* TODO: Call poptReadDefaultConfig; handle errors. */
918
919 /* The context leaks in case of an error, but if there's a
920 * problem we always exit anyhow. */
921 if (pc)
922 poptFreeContext(pc);
923 pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
924 if (!am_server)
925 poptReadDefaultConfig(pc, 0);
926
927 while ((opt = poptGetNextOpt(pc)) != -1) {
928 /* most options are handled automatically by popt;
929 * only special cases are returned and listed here. */
930
931 switch (opt) {
932 case OPT_VERSION:
933 print_rsync_version(FINFO);
934 exit_cleanup(0);
935
936 case OPT_SERVER:
937 if (!am_server) {
938 /* Disable popt aliases on the server side and
939 * then start parsing the options again. */
940 poptFreeContext(pc);
941 pc = poptGetContext(RSYNC_NAME, argc, argv,
942 long_options, 0);
943 am_server = 1;
944 }
945 #ifdef ICONV_OPTION
946 iconv_opt = NULL;
947 #endif
948 break;
949
950 case OPT_SENDER:
951 if (!am_server) {
952 usage(FERROR);
953 exit_cleanup(RERR_SYNTAX);
954 }
955 am_sender = 1;
956 break;
957
958 case OPT_DAEMON:
959 if (am_daemon) {
960 strlcpy(err_buf,
961 "Attempt to hack rsync thwarted!\n",
962 sizeof err_buf);
963 return 0;
964 }
965 #ifdef ICONV_OPTION
966 iconv_opt = NULL;
967 #endif
968 poptFreeContext(pc);
969 pc = poptGetContext(RSYNC_NAME, argc, argv,
970 long_daemon_options, 0);
971 while ((opt = poptGetNextOpt(pc)) != -1) {
972 switch (opt) {
973 case 'h':
974 daemon_usage(FINFO);
975 exit_cleanup(0);
976
977 case 'v':
978 verbose++;
979 break;
980
981 default:
982 rprintf(FERROR,
983 "rsync: %s: %s (in daemon mode)\n",
984 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
985 poptStrerror(opt));
986 goto daemon_error;
987 }
988 }
989
990 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
991 snprintf(err_buf, sizeof err_buf,
992 "the --temp-dir path is WAY too long.\n");
993 return 0;
994 }
995
996 if (!daemon_opt) {
997 rprintf(FERROR, "Daemon option(s) used without --daemon.\n");
998 daemon_error:
999 rprintf(FERROR,
1000 "(Type \"rsync --daemon --help\" for assistance with daemon mode.)\n");
1001 exit_cleanup(RERR_SYNTAX);
1002 }
1003
1004 *argv_p = argv = poptGetArgs(pc);
1005 *argc_p = argc = count_args(argv);
1006 am_starting_up = 0;
1007 daemon_opt = 0;
1008 am_daemon = 1;
1009 return 1;
1010
1011 case OPT_MODIFY_WINDOW:
1012 /* The value has already been set by popt, but
1013 * we need to remember that we're using a
1014 * non-default setting. */
1015 modify_window_set = 1;
1016 break;
1017
1018 case OPT_FILTER:
1019 parse_rule(&filter_list, poptGetOptArg(pc), 0, 0);
1020 break;
1021
1022 case OPT_EXCLUDE:
1023 parse_rule(&filter_list, poptGetOptArg(pc),
1024 0, XFLG_OLD_PREFIXES);
1025 break;
1026
1027 case OPT_INCLUDE:
1028 parse_rule(&filter_list, poptGetOptArg(pc),
1029 MATCHFLG_INCLUDE, XFLG_OLD_PREFIXES);
1030 break;
1031
1032 case OPT_EXCLUDE_FROM:
1033 case OPT_INCLUDE_FROM:
1034 arg = poptGetOptArg(pc);
1035 if (sanitize_paths)
1036 arg = sanitize_path(NULL, arg, NULL, 0, SP_DEFAULT);
1037 if (daemon_filter_list.head) {
1038 int rej;
1039 char *dir, *cp = strdup(arg);
1040 if (!cp)
1041 out_of_memory("parse_arguments");
1042 if (!*cp)
1043 goto options_rejected;
1044 dir = cp + (*cp == '/' ? module_dirlen : 0);
1045 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
1046 rej = check_filter(&daemon_filter_list, FLOG, dir, 0) < 0;
1047 free(cp);
1048 if (rej)
1049 goto options_rejected;
1050 }
1051 parse_filter_file(&filter_list, arg,
1052 opt == OPT_INCLUDE_FROM ? MATCHFLG_INCLUDE : 0,
1053 XFLG_FATAL_ERRORS | XFLG_OLD_PREFIXES);
1054 break;
1055
1056 case 'a':
1057 if (refused_archive_part) {
1058 create_refuse_error(refused_archive_part);
1059 return 0;
1060 }
1061 if (!recurse) /* preserve recurse == 2 */
1062 recurse = 1;
1063 #ifdef SUPPORT_LINKS
1064 preserve_links = 1;
1065 #endif
1066 preserve_perms = 1;
1067 preserve_times = 2;
1068 preserve_gid = 1;
1069 preserve_uid = 1;
1070 preserve_devices = 1;
1071 preserve_specials = 1;
1072 break;
1073
1074 case 'D':
1075 preserve_devices = preserve_specials = 1;
1076 break;
1077
1078 case OPT_NO_D:
1079 preserve_devices = preserve_specials = 0;
1080 break;
1081
1082 case 'h':
1083 human_readable++;
1084 break;
1085
1086 case 'H':
1087 preserve_hard_links++;
1088 break;
1089
1090 case 'i':
1091 itemize_changes++;
1092 break;
1093
1094 case 'v':
1095 verbose++;
1096 break;
1097
1098 case 'q':
1099 quiet++;
1100 break;
1101
1102 case 'x':
1103 one_file_system++;
1104 break;
1105
1106 case 'F':
1107 switch (++F_option_cnt) {
1108 case 1:
1109 parse_rule(&filter_list,": /.rsync-filter",0,0);
1110 break;
1111 case 2:
1112 parse_rule(&filter_list,"- .rsync-filter",0,0);
1113 break;
1114 }
1115 break;
1116
1117 case 'P':
1118 if (refused_partial || refused_progress) {
1119 create_refuse_error(refused_partial
1120 ? refused_partial : refused_progress);
1121 return 0;
1122 }
1123 do_progress = 1;
1124 keep_partial = 1;
1125 break;
1126
1127 case 'z':
1128 if (def_compress_level < Z_DEFAULT_COMPRESSION
1129 || def_compress_level > Z_BEST_COMPRESSION) {
1130 snprintf(err_buf, sizeof err_buf,
1131 "--compress-level value is invalid: %d\n",
1132 def_compress_level);
1133 return 0;
1134 }
1135 do_compression = def_compress_level != Z_NO_COMPRESSION;
1136 if (do_compression && refused_compress) {
1137 create_refuse_error(refused_compress);
1138 return 0;
1139 }
1140 break;
1141
1142 case OPT_WRITE_BATCH:
1143 /* batch_name is already set */
1144 write_batch = 1;
1145 break;
1146
1147 case OPT_ONLY_WRITE_BATCH:
1148 /* batch_name is already set */
1149 write_batch = -1;
1150 break;
1151
1152 case OPT_READ_BATCH:
1153 /* batch_name is already set */
1154 read_batch = 1;
1155 break;
1156
1157 case OPT_NO_ICONV:
1158 #ifdef ICONV_OPTION
1159 iconv_opt = NULL;
1160 #endif
1161 break;
1162
1163 case OPT_MAX_SIZE:
1164 if ((max_size = parse_size_arg(&max_size_arg, 'b')) <= 0) {
1165 snprintf(err_buf, sizeof err_buf,
1166 "--max-size value is invalid: %s\n",
1167 max_size_arg);
1168 return 0;
1169 }
1170 break;
1171
1172 case OPT_MIN_SIZE:
1173 if ((min_size = parse_size_arg(&min_size_arg, 'b')) <= 0) {
1174 snprintf(err_buf, sizeof err_buf,
1175 "--min-size value is invalid: %s\n",
1176 min_size_arg);
1177 return 0;
1178 }
1179 break;
1180
1181 case OPT_APPEND:
1182 if (am_server)
1183 append_mode++;
1184 else
1185 append_mode = 1;
1186 break;
1187
1188 case OPT_LINK_DEST:
1189 #ifdef SUPPORT_HARD_LINKS
1190 link_dest = 1;
1191 dest_option = "--link-dest";
1192 goto set_dest_dir;
1193 #else
1194 snprintf(err_buf, sizeof err_buf,
1195 "hard links are not supported on this %s\n",
1196 am_server ? "server" : "client");
1197 return 0;
1198 #endif
1199
1200 case OPT_COPY_DEST:
1201 copy_dest = 1;
1202 dest_option = "--copy-dest";
1203 goto set_dest_dir;
1204
1205 case OPT_COMPARE_DEST:
1206 compare_dest = 1;
1207 dest_option = "--compare-dest";
1208 set_dest_dir:
1209 if (basis_dir_cnt >= MAX_BASIS_DIRS) {
1210 snprintf(err_buf, sizeof err_buf,
1211 "ERROR: at most %d %s args may be specified\n",
1212 MAX_BASIS_DIRS, dest_option);
1213 return 0;
1214 }
1215 /* We defer sanitizing this arg until we know what
1216 * our destination directory is going to be. */
1217 basis_dir[basis_dir_cnt++] = (char *)poptGetOptArg(pc);
1218 break;
1219
1220 case OPT_CHMOD:
1221 arg = poptGetOptArg(pc);
1222 if (!parse_chmod(arg, &chmod_modes)) {
1223 snprintf(err_buf, sizeof err_buf,
1224 "Invalid argument passed to --chmod (%s)\n",
1225 arg);
1226 return 0;
1227 }
1228 break;
1229
1230 case OPT_HELP:
1231 usage(FINFO);
1232 exit_cleanup(0);
1233
1234 case 'A':
1235 #ifdef SUPPORT_ACLS
1236 preserve_acls = 1;
1237 preserve_perms = 1;
1238 break;
1239 #else
1240 /* FIXME: this should probably be ignored with a
1241 * warning and then countermeasures taken to
1242 * restrict group and other access in the presence
1243 * of any more restrictive ACLs, but this is safe
1244 * for now */
1245 snprintf(err_buf,sizeof(err_buf),
1246 "ACLs are not supported on this %s\n",
1247 am_server ? "server" : "client");
1248 return 0;
1249 #endif
1250
1251 case 'X':
1252 #ifdef SUPPORT_XATTRS
1253 preserve_xattrs++;
1254 break;
1255 #else
1256 snprintf(err_buf,sizeof(err_buf),
1257 "extended attributes are not supported on this %s\n",
1258 am_server ? "server" : "client");
1259 return 0;
1260 #endif
1261
1262 default:
1263 /* A large opt value means that set_refuse_options()
1264 * turned this option off. */
1265 if (opt >= OPT_REFUSED_BASE) {
1266 create_refuse_error(opt);
1267 return 0;
1268 }
1269 snprintf(err_buf, sizeof err_buf, "%s%s: %s\n",
1270 am_server ? "on remote machine: " : "",
1271 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1272 poptStrerror(opt));
1273 return 0;
1274 }
1275 }
1276
1277 if (human_readable && argc == 2 && !am_server) {
1278 /* Allow the old meaning of 'h' (--help) on its own. */
1279 usage(FINFO);
1280 exit_cleanup(0);
1281 }
1282
1283 #ifdef ICONV_OPTION
1284 if (iconv_opt && protect_args != 2) {
1285 if (!am_server && strcmp(iconv_opt, "-") == 0)
1286 iconv_opt = NULL;
1287 else
1288 need_unsorted_flist = 1;
1289 }
1290 if (refused_no_iconv && !iconv_opt) {
1291 create_refuse_error(refused_no_iconv);
1292 return 0;
1293 }
1294 #endif
1295
1296 if (protect_args == 1 && am_server)
1297 return 1;
1298
1299 *argv_p = argv = poptGetArgs(pc);
1300 *argc_p = argc = count_args(argv);
1301
1302 #ifndef SUPPORT_LINKS
1303 if (preserve_links && !am_sender) {
1304 snprintf(err_buf, sizeof err_buf,
1305 "symlinks are not supported on this %s\n",
1306 am_server ? "server" : "client");
1307 return 0;
1308 }
1309 #endif
1310
1311 #ifndef SUPPORT_HARD_LINKS
1312 if (preserve_hard_links) {
1313 snprintf(err_buf, sizeof err_buf,
1314 "hard links are not supported on this %s\n",
1315 am_server ? "server" : "client");
1316 return 0;
1317 }
1318 #endif
1319
1320 #ifdef SUPPORT_XATTRS
1321 if (am_root < 0 && preserve_xattrs > 1) {
1322 snprintf(err_buf, sizeof err_buf,
1323 "--fake-super conflicts with -XX\n");
1324 return 0;
1325 }
1326 #else
1327 if (am_root < 0) {
1328 snprintf(err_buf, sizeof err_buf,
1329 "--fake-super requires an rsync with extended attributes enabled\n");
1330 return 0;
1331 }
1332 #endif
1333
1334 if (write_batch && read_batch) {
1335 snprintf(err_buf, sizeof err_buf,
1336 "--write-batch and --read-batch can not be used together\n");
1337 return 0;
1338 }
1339 if (write_batch > 0 || read_batch) {
1340 if (am_server) {
1341 rprintf(FINFO,
1342 "ignoring --%s-batch option sent to server\n",
1343 write_batch ? "write" : "read");
1344 /* We don't actually exit_cleanup(), so that we can
1345 * still service older version clients that still send
1346 * batch args to server. */
1347 read_batch = write_batch = 0;
1348 batch_name = NULL;
1349 } else if (dry_run)
1350 write_batch = 0;
1351 } else if (write_batch < 0 && dry_run)
1352 write_batch = 0;
1353 if (read_batch && files_from) {
1354 snprintf(err_buf, sizeof err_buf,
1355 "--read-batch cannot be used with --files-from\n");
1356 return 0;
1357 }
1358 if (read_batch && remove_source_files) {
1359 snprintf(err_buf, sizeof err_buf,
1360 "--read-batch cannot be used with --remove-%s-files\n",
1361 remove_source_files == 1 ? "source" : "sent");
1362 return 0;
1363 }
1364 if (batch_name && strlen(batch_name) > MAX_BATCH_NAME_LEN) {
1365 snprintf(err_buf, sizeof err_buf,
1366 "the batch-file name must be %d characters or less.\n",
1367 MAX_BATCH_NAME_LEN);
1368 return 0;
1369 }
1370
1371 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
1372 snprintf(err_buf, sizeof err_buf,
1373 "the --temp-dir path is WAY too long.\n");
1374 return 0;
1375 }
1376
1377 if (max_delete < 0 && max_delete != INT_MIN) {
1378 /* Negative numbers are treated as "no deletions". */
1379 max_delete = 0;
1380 }
1381
1382 if (compare_dest + copy_dest + link_dest > 1) {
1383 snprintf(err_buf, sizeof err_buf,
1384 "You may not mix --compare-dest, --copy-dest, and --link-dest.\n");
1385 return 0;
1386 }
1387
1388 if (files_from) {
1389 if (recurse == 1) /* preserve recurse == 2 */
1390 recurse = 0;
1391 if (xfer_dirs < 0)
1392 xfer_dirs = 1;
1393 }
1394
1395 if (argc < 2 && !read_batch && !am_server)
1396 list_only |= 1;
1397
1398 if (xfer_dirs >= 4) {
1399 parse_rule(&filter_list, "- /*/*", 0, 0);
1400 recurse = xfer_dirs = 1;
1401 } else if (recurse)
1402 xfer_dirs = 1;
1403 else if (xfer_dirs < 0)
1404 xfer_dirs = list_only ? 1 : 0;
1405
1406 if (relative_paths < 0)
1407 relative_paths = files_from? 1 : 0;
1408 if (!relative_paths)
1409 implied_dirs = 0;
1410
1411 if (delete_before + !!delete_during + delete_after > 1) {
1412 snprintf(err_buf, sizeof err_buf,
1413 "You may not combine multiple --delete-WHEN options.\n");
1414 return 0;
1415 }
1416 if (delete_before || delete_during || delete_after)
1417 delete_mode = 1;
1418 else if (delete_mode || delete_excluded) {
1419 /* Only choose now between before & during if one is refused. */
1420 if (refused_delete_before) {
1421 if (!refused_delete_during)
1422 delete_during = 1;
1423 else {
1424 create_refuse_error(refused_delete_before);
1425 return 0;
1426 }
1427 } else if (refused_delete_during)
1428 delete_before = 1;
1429 delete_mode = 1;
1430 }
1431 if (!xfer_dirs && delete_mode) {
1432 snprintf(err_buf, sizeof err_buf,
1433 "--delete does not work without --recursive (-r) or --dirs (-d).\n");
1434 return 0;
1435 }
1436
1437 if (delete_mode && refused_delete) {
1438 create_refuse_error(refused_delete);
1439 return 0;
1440 }
1441
1442 if (remove_source_files) {
1443 /* We only want to infer this refusal of --remove-source-files
1444 * via the refusal of "delete", not any of the "delete-FOO"
1445 * options. */
1446 if (refused_delete && am_sender) {
1447 create_refuse_error(refused_delete);
1448 return 0;
1449 }
1450 need_messages_from_generator = 1;
1451 }
1452
1453 if (sanitize_paths) {
1454 int i;
1455 for (i = argc; i-- > 0; )
1456 argv[i] = sanitize_path(NULL, argv[i], "", 0, SP_KEEP_DOT_DIRS);
1457 if (tmpdir)
1458 tmpdir = sanitize_path(NULL, tmpdir, NULL, 0, SP_DEFAULT);
1459 if (backup_dir)
1460 backup_dir = sanitize_path(NULL, backup_dir, NULL, 0, SP_DEFAULT);
1461 }
1462 if (daemon_filter_list.head && !am_sender) {
1463 struct filter_list_struct *elp = &daemon_filter_list;
1464 if (tmpdir) {
1465 char *dir;
1466 if (!*tmpdir)
1467 goto options_rejected;
1468 dir = tmpdir + (*tmpdir == '/' ? module_dirlen : 0);
1469 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
1470 if (check_filter(elp, FLOG, dir, 1) < 0)
1471 goto options_rejected;
1472 }
1473 if (backup_dir) {
1474 char *dir;
1475 if (!*backup_dir)
1476 goto options_rejected;
1477 dir = backup_dir + (*backup_dir == '/' ? module_dirlen : 0);
1478 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
1479 if (check_filter(elp, FLOG, dir, 1) < 0)
1480 goto options_rejected;
1481 }
1482 }
1483
1484 if (!backup_suffix)
1485 backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
1486 backup_suffix_len = strlen(backup_suffix);
1487 if (strchr(backup_suffix, '/') != NULL) {
1488 snprintf(err_buf, sizeof err_buf,
1489 "--suffix cannot contain slashes: %s\n",
1490 backup_suffix);
1491 return 0;
1492 }
1493 if (backup_dir) {
1494 size_t len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
1495 if (len > sizeof backup_dir_buf - 128) {
1496 snprintf(err_buf, sizeof err_buf,
1497 "the --backup-dir path is WAY too long.\n");
1498 return 0;
1499 }
1500 backup_dir_len = (int)len;
1501 if (backup_dir_buf[backup_dir_len - 1] != '/') {
1502 backup_dir_buf[backup_dir_len++] = '/';
1503 backup_dir_buf[backup_dir_len] = '\0';
1504 }
1505 backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
1506 if (verbose > 1 && !am_sender)
1507 rprintf(FINFO, "backup_dir is %s\n", backup_dir_buf);
1508 } else if (!backup_suffix_len && (!am_server || !am_sender)) {
1509 snprintf(err_buf, sizeof err_buf,
1510 "--suffix cannot be a null string without --backup-dir\n");
1511 return 0;
1512 } else if (make_backups && delete_mode && !delete_excluded && !am_server) {
1513 snprintf(backup_dir_buf, sizeof backup_dir_buf,
1514 "P *%s", backup_suffix);
1515 parse_rule(&filter_list, backup_dir_buf, 0, 0);
1516 }
1517
1518 if (make_backups && !backup_dir) {
1519 omit_dir_times = 0; /* Implied, so avoid -O to sender. */
1520 if (preserve_times > 1)
1521 preserve_times = 1;
1522 } else if (omit_dir_times) {
1523 if (preserve_times > 1)
1524 preserve_times = 1;
1525 }
1526
1527 if (stdout_format) {
1528 if (am_server && log_format_has(stdout_format, 'I'))
1529 stdout_format_has_i = 2;
1530 else if (log_format_has(stdout_format, 'i'))
1531 stdout_format_has_i = itemize_changes | 1;
1532 if (!log_format_has(stdout_format, 'b')
1533 && !log_format_has(stdout_format, 'c'))
1534 log_before_transfer = !am_server;
1535 } else if (itemize_changes) {
1536 stdout_format = "%i %n%L";
1537 stdout_format_has_i = itemize_changes;
1538 log_before_transfer = !am_server;
1539 }
1540
1541 if (do_progress && !verbose && !log_before_transfer && !am_server)
1542 verbose = 1;
1543
1544 if (dry_run)
1545 do_xfers = 0;
1546
1547 set_io_timeout(io_timeout);
1548
1549 if (verbose && !stdout_format) {
1550 stdout_format = "%n%L";
1551 log_before_transfer = !am_server;
1552 }
1553 if (stdout_format_has_i || log_format_has(stdout_format, 'o'))
1554 stdout_format_has_o_or_i = 1;
1555
1556 if (logfile_name && !am_daemon) {
1557 if (!logfile_format) {
1558 logfile_format = "%i %n%L";
1559 logfile_format_has_i = logfile_format_has_o_or_i = 1;
1560 } else {
1561 if (log_format_has(logfile_format, 'i'))
1562 logfile_format_has_i = 1;
1563 if (logfile_format_has_i || log_format_has(logfile_format, 'o'))
1564 logfile_format_has_o_or_i = 1;
1565 }
1566 log_init(0);
1567 } else if (!am_daemon)
1568 logfile_format = NULL;
1569
1570 if (daemon_bwlimit && (!bwlimit || bwlimit > daemon_bwlimit))
1571 bwlimit = daemon_bwlimit;
1572 if (bwlimit) {
1573 bwlimit_writemax = (size_t)bwlimit * 128;
1574 if (bwlimit_writemax < 512)
1575 bwlimit_writemax = 512;
1576 }
1577
1578 if (sparse_files && inplace) {
1579 /* Note: we don't check for this below, because --append is
1580 * OK with --sparse (as long as redos are handled right). */
1581 snprintf(err_buf, sizeof err_buf,
1582 "--sparse cannot be used with --inplace\n");
1583 return 0;
1584 }
1585
1586 if (append_mode) {
1587 if (whole_file > 0) {
1588 snprintf(err_buf, sizeof err_buf,
1589 "--append cannot be used with --whole-file\n");
1590 return 0;
1591 }
1592 if (refused_inplace) {
1593 create_refuse_error(refused_inplace);
1594 return 0;
1595 }
1596 inplace = 1;
1597 }
1598
1599 if (delay_updates && !partial_dir)
1600 partial_dir = tmp_partialdir;
1601
1602 if (inplace) {
1603 #ifdef HAVE_FTRUNCATE
1604 if (partial_dir) {
1605 snprintf(err_buf, sizeof err_buf,
1606 "--%s cannot be used with --%s\n",
1607 append_mode ? "append" : "inplace",
1608 delay_updates ? "delay-updates" : "partial-dir");
1609 return 0;
1610 }
1611 /* --inplace implies --partial for refusal purposes, but we
1612 * clear the keep_partial flag for internal logic purposes. */
1613 if (refused_partial) {
1614 create_refuse_error(refused_partial);
1615 return 0;
1616 }
1617 keep_partial = 0;
1618 #else
1619 snprintf(err_buf, sizeof err_buf,
1620 "--%s is not supported on this %s\n",
1621 append_mode ? "append" : "inplace",
1622 am_server ? "server" : "client");
1623 return 0;
1624 #endif
1625 } else {
1626 if (keep_partial && !partial_dir && !am_server) {
1627 if ((arg = getenv("RSYNC_PARTIAL_DIR")) != NULL && *arg)
1628 partial_dir = strdup(arg);
1629 }
1630 if (partial_dir) {
1631 if (*partial_dir)
1632 clean_fname(partial_dir, CFN_COLLAPSE_DOT_DOT_DIRS);
1633 if (!*partial_dir || strcmp(partial_dir, ".") == 0)
1634 partial_dir = NULL;
1635 if (!partial_dir && refused_partial) {
1636 create_refuse_error(refused_partial);
1637 return 0;
1638 }
1639 keep_partial = 1;
1640 }
1641 }
1642
1643 if (files_from) {
1644 char *h, *p;
1645 int q;
1646 if (argc > 2 || (!am_daemon && argc == 1)) {
1647 usage(FERROR);
1648 exit_cleanup(RERR_SYNTAX);
1649 }
1650 if (strcmp(files_from, "-") == 0) {
1651 filesfrom_fd = 0;
1652 if (am_server)
1653 filesfrom_host = ""; /* reading from socket */
1654 } else if ((p = check_for_hostspec(files_from, &h, &q)) != 0) {
1655 if (am_server) {
1656 snprintf(err_buf, sizeof err_buf,
1657 "The --files-from sent to the server cannot specify a host.\n");
1658 return 0;
1659 }
1660 files_from = p;
1661 filesfrom_host = h;
1662 if (strcmp(files_from, "-") == 0) {
1663 snprintf(err_buf, sizeof err_buf,
1664 "Invalid --files-from remote filename\n");
1665 return 0;
1666 }
1667 } else {
1668 if (sanitize_paths)
1669 files_from = sanitize_path(NULL, files_from, NULL, 0, SP_DEFAULT);
1670 if (daemon_filter_list.head) {
1671 char *dir;
1672 if (!*files_from)
1673 goto options_rejected;
1674 dir = files_from + (*files_from == '/' ? module_dirlen : 0);
1675 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
1676 if (check_filter(&daemon_filter_list, FLOG, dir, 0) < 0)
1677 goto options_rejected;
1678 }
1679 filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
1680 if (filesfrom_fd < 0) {
1681 snprintf(err_buf, sizeof err_buf,
1682 "failed to open files-from file %s: %s\n",
1683 files_from, strerror(errno));
1684 return 0;
1685 }
1686 }
1687 }
1688
1689 am_starting_up = 0;
1690
1691 return 1;
1692
1693 options_rejected:
1694 snprintf(err_buf, sizeof err_buf,
1695 "Your options have been rejected by the server.\n");
1696 return 0;
1697 }
1698
1699
1700 /**
1701 * Construct a filtered list of options to pass through from the
1702 * client to the server.
1703 *
1704 * This involves setting options that will tell the server how to
1705 * behave, and also filtering out options that are processed only
1706 * locally.
1707 **/
1708 void server_options(char **args, int *argc_p)
1709 {
1710 static char argstr[64];
1711 int ac = *argc_p;
1712 char *arg;
1713 int i, x;
1714
1715 /* This should always remain first on the server's command-line. */
1716 args[ac++] = "--server";
1717
1718 if (daemon_over_rsh > 0) {
1719 args[ac++] = "--daemon";
1720 *argc_p = ac;
1721 /* if we're passing --daemon, we're done */
1722 return;
1723 }
1724
1725 if (!am_sender)
1726 args[ac++] = "--sender";
1727
1728 x = 1;
1729 argstr[0] = '-';
1730
1731 if (protect_args)
1732 argstr[x++] = 's';
1733
1734 for (i = 0; i < verbose; i++)
1735 argstr[x++] = 'v';
1736
1737 /* the -q option is intentionally left out */
1738 if (make_backups)
1739 argstr[x++] = 'b';
1740 if (update_only)
1741 argstr[x++] = 'u';
1742 if (!do_xfers) /* Note: NOT "dry_run"! */
1743 argstr[x++] = 'n';
1744 if (preserve_links)
1745 argstr[x++] = 'l';
1746 if ((xfer_dirs >= 2 && xfer_dirs < 4)
1747 || (xfer_dirs && !recurse && (list_only || (delete_mode && am_sender))))
1748 argstr[x++] = 'd';
1749 if (am_sender) {
1750 if (keep_dirlinks)
1751 argstr[x++] = 'K';
1752 if (prune_empty_dirs)
1753 argstr[x++] = 'm';
1754 if (omit_dir_times)
1755 argstr[x++] = 'O';
1756 } else {
1757 if (copy_links)
1758 argstr[x++] = 'L';
1759 if (copy_dirlinks)
1760 argstr[x++] = 'k';
1761 }
1762
1763 if (whole_file > 0)
1764 argstr[x++] = 'W';
1765 /* We don't need to send --no-whole-file, because it's the
1766 * default for remote transfers, and in any case old versions
1767 * of rsync will not understand it. */
1768
1769 if (preserve_hard_links) {
1770 argstr[x++] = 'H';
1771 if (preserve_hard_links > 1)
1772 argstr[x++] = 'H';
1773 }
1774 if (preserve_uid)
1775 argstr[x++] = 'o';
1776 if (preserve_gid)
1777 argstr[x++] = 'g';
1778 if (preserve_devices) /* ignore preserve_specials here */
1779 argstr[x++] = 'D';
1780 if (preserve_times)
1781 argstr[x++] = 't';
1782 if (preserve_perms)
1783 argstr[x++] = 'p';
1784 else if (preserve_executability && am_sender)
1785 argstr[x++] = 'E';
1786 #ifdef SUPPORT_ACLS
1787 if (preserve_acls)
1788 argstr[x++] = 'A';
1789 #endif
1790 #ifdef SUPPORT_XATTRS
1791 if (preserve_xattrs) {
1792 argstr[x++] = 'X';
1793 if (preserve_xattrs > 1)
1794 argstr[x++] = 'X';
1795 }
1796 #endif
1797 if (recurse)
1798 argstr[x++] = 'r';
1799 if (always_checksum)
1800 argstr[x++] = 'c';
1801 if (cvs_exclude)
1802 argstr[x++] = 'C';
1803 if (ignore_times)
1804 argstr[x++] = 'I';
1805 if (relative_paths)
1806 argstr[x++] = 'R';
1807 if (one_file_system) {
1808 argstr[x++] = 'x';
1809 if (one_file_system > 1)
1810 argstr[x++] = 'x';
1811 }
1812 if (sparse_files)
1813 argstr[x++] = 'S';
1814 if (do_compression)
1815 argstr[x++] = 'z';
1816
1817 set_allow_inc_recurse();
1818
1819 /* Checking the pre-negotiated value allows --protocol=29 override. */
1820 if (protocol_version >= 30) {
1821 /* We make use of the -e option to let the server know about
1822 * any pre-release protocol version && some behavior flags. */
1823 argstr[x++] = 'e';
1824 #if SUBPROTOCOL_VERSION != 0
1825 if (protocol_version == PROTOCOL_VERSION) {
1826 x += snprintf(argstr+x, sizeof argstr - x,
1827 "%d.%d",
1828 PROTOCOL_VERSION, SUBPROTOCOL_VERSION);
1829 } else
1830 #endif
1831 argstr[x++] = '.';
1832 if (allow_inc_recurse)
1833 argstr[x++] = 'i';
1834 #if defined HAVE_LUTIMES && defined HAVE_UTIMES
1835 argstr[x++] = 'L';
1836 #endif
1837 #ifdef ICONV_OPTION
1838 argstr[x++] = 's';
1839 #endif
1840 argstr[x++] = 'f';
1841 }
1842
1843 if (x >= (int)sizeof argstr) { /* Not possible... */
1844 rprintf(FERROR, "argstr overflow in server_options().\n");
1845 exit_cleanup(RERR_MALLOC);
1846 }
1847
1848 argstr[x] = '\0';
1849
1850 if (x > 1)
1851 args[ac++] = argstr;
1852
1853 #ifdef ICONV_OPTION
1854 if (iconv_opt) {
1855 char *set = strchr(iconv_opt, ',');
1856 if (set)
1857 set++;
1858 else
1859 set = iconv_opt;
1860 if (asprintf(&arg, "--iconv=%s", set) < 0)
1861 goto oom;
1862 args[ac++] = arg;
1863 }
1864 #endif
1865
1866 if (protect_args && !local_server) /* unprotected args stop here */
1867 args[ac++] = NULL;
1868
1869 if (list_only > 1)
1870 args[ac++] = "--list-only";
1871
1872 /* This makes sure that the remote rsync can handle deleting with -d
1873 * sans -r because the --no-r option was added at the same time. */
1874 if (xfer_dirs && !recurse && delete_mode && am_sender)
1875 args[ac++] = "--no-r";
1876
1877 if (do_compression && def_compress_level != Z_DEFAULT_COMPRESSION) {
1878 if (asprintf(&arg, "--compress-level=%d", def_compress_level) < 0)
1879 goto oom;
1880 args[ac++] = arg;
1881 }
1882
1883 if (preserve_devices) {
1884 /* Note: sending "--devices" would not be backward-compatible. */
1885 if (!preserve_specials)
1886 args[ac++] = "--no-specials"; /* -D is already set. */
1887 } else if (preserve_specials)
1888 args[ac++] = "--specials";
1889
1890 /* The server side doesn't use our log-format, but in certain
1891 * circumstances they need to know a little about the option. */
1892 if (stdout_format && am_sender) {
1893 /* Use --log-format, not --out-format, for compatibility. */
1894 if (stdout_format_has_i > 1)
1895 args[ac++] = "--log-format=%i%I";
1896 else if (stdout_format_has_i)
1897 args[ac++] = "--log-format=%i";
1898 else if (stdout_format_has_o_or_i)
1899 args[ac++] = "--log-format=%o";
1900 else if (!verbose)
1901 args[ac++] = "--log-format=X";
1902 }
1903
1904 if (block_size) {
1905 if (asprintf(&arg, "-B%lu", block_size) < 0)
1906 goto oom;
1907 args[ac++] = arg;
1908 }
1909
1910 if (io_timeout) {
1911 if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
1912 goto oom;
1913 args[ac++] = arg;
1914 }
1915
1916 if (bwlimit) {
1917 if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
1918 goto oom;
1919 args[ac++] = arg;
1920 }
1921
1922 if (backup_dir) {
1923 args[ac++] = "--backup-dir";
1924 args[ac++] = backup_dir;
1925 }
1926
1927 /* Only send --suffix if it specifies a non-default value. */
1928 if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
1929 /* We use the following syntax to avoid weirdness with '~'. */
1930 if (asprintf(&arg, "--suffix=%s", backup_suffix) < 0)
1931 goto oom;
1932 args[ac++] = arg;
1933 }
1934
1935 if (am_sender) {
1936 if (max_delete > 0) {
1937 if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
1938 goto oom;
1939 args[ac++] = arg;
1940 } else if (max_delete == 0)
1941 args[ac++] = "--max-delete=-1";
1942 if (min_size) {
1943 args[ac++] = "--min-size";
1944 args[ac++] = min_size_arg;
1945 }
1946 if (max_size) {
1947 args[ac++] = "--max-size";
1948 args[ac++] = max_size_arg;
1949 }
1950 if (delete_before)
1951 args[ac++] = "--delete-before";
1952 else if (delete_during == 2)
1953 args[ac++] = "--delete-delay";
1954 else if (delete_during)
1955 args[ac++] = "--delete-during";
1956 else if (delete_after)
1957 args[ac++] = "--delete-after";
1958 else if (delete_mode && !delete_excluded)
1959 args[ac++] = "--delete";
1960 if (delete_excluded)
1961 args[ac++] = "--delete-excluded";
1962 if (force_delete)
1963 args[ac++] = "--force";
1964 if (write_batch < 0)
1965 args[ac++] = "--only-write-batch=X";
1966 if (am_root > 1)
1967 args[ac++] = "--super";
1968 if (size_only)
1969 args[ac++] = "--size-only";
1970 } else {
1971 if (skip_compress) {
1972 if (asprintf(&arg, "--skip-compress=%s", skip_compress) < 0)
1973 goto oom;
1974 args[ac++] = arg;
1975 }
1976 }
1977
1978 if (modify_window_set) {
1979 if (asprintf(&arg, "--modify-window=%d", modify_window) < 0)
1980 goto oom;
1981 args[ac++] = arg;
1982 }
1983
1984 if (checksum_seed) {
1985 if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
1986 goto oom;
1987 args[ac++] = arg;
1988 }
1989
1990 if (partial_dir && am_sender) {
1991 if (partial_dir != tmp_partialdir) {
1992 args[ac++] = "--partial-dir";
1993 args[ac++] = partial_dir;
1994 }
1995 if (delay_updates)
1996 args[ac++] = "--delay-updates";
1997 } else if (keep_partial && am_sender)
1998 args[ac++] = "--partial";
1999
2000 if (ignore_errors)
2001 args[ac++] = "--ignore-errors";
2002
2003 if (copy_unsafe_links)
2004 args[ac++] = "--copy-unsafe-links";
2005
2006 if (safe_symlinks)
2007 args[ac++] = "--safe-links";
2008
2009 if (numeric_ids)
2010 args[ac++] = "--numeric-ids";
2011
2012 if (use_qsort)
2013 args[ac++] = "--use-qsort";
2014
2015 if (am_sender) {
2016 if (ignore_existing)
2017 args[ac++] = "--ignore-existing";
2018
2019 /* Backward compatibility: send --existing, not --ignore-non-existing. */
2020 if (ignore_non_existing)
2021 args[ac++] = "--existing";
2022
2023 if (tmpdir) {
2024 args[ac++] = "--temp-dir";
2025 args[ac++] = tmpdir;
2026 }
2027
2028 if (basis_dir[0]) {
2029 /* the server only needs this option if it is not the sender,
2030 * and it may be an older version that doesn't know this
2031 * option, so don't send it if client is the sender.
2032 */
2033 for (i = 0; i < basis_dir_cnt; i++) {
2034 args[ac++] = dest_option;
2035 args[ac++] = basis_dir[i];
2036 }
2037 }
2038 }
2039
2040 if (append_mode) {
2041 if (append_mode > 1)
2042 args[ac++] = "--append";
2043 args[ac++] = "--append";
2044 } else if (inplace)
2045 args[ac++] = "--inplace";
2046
2047 if (files_from && (!am_sender || filesfrom_host)) {
2048 if (filesfrom_host) {
2049 args[ac++] = "--files-from";
2050 args[ac++] = files_from;
2051 if (eol_nulls)
2052 args[ac++] = "--from0";
2053 } else {
2054 args[ac++] = "--files-from=-";
2055 args[ac++] = "--from0";
2056 }
2057 if (!relative_paths)
2058 args[ac++] = "--no-relative";
2059 }
2060 /* It's OK that this checks the upper-bound of the protocol_version. */
2061 if (relative_paths && !implied_dirs && (!am_sender || protocol_version >= 30))
2062 args[ac++] = "--no-implied-dirs";
2063
2064 if (fuzzy_basis && am_sender)
2065 args[ac++] = "--fuzzy";
2066
2067 if (remove_source_files == 1)
2068 args[ac++] = "--remove-source-files";
2069 else if (remove_source_files)
2070 args[ac++] = "--remove-sent-files";
2071
2072 if (ac > MAX_SERVER_ARGS) { /* Not possible... */
2073 rprintf(FERROR, "argc overflow in server_options().\n");
2074 exit_cleanup(RERR_MALLOC);
2075 }
2076
2077 *argc_p = ac;
2078 return;
2079
2080 oom:
2081 out_of_memory("server_options");
2082 }
2083
2084 /* If str points to a valid hostspec, return allocated memory containing the
2085 * [USER@]HOST part of the string, and set the path_start_ptr to the part of
2086 * the string after the host part. Otherwise, return NULL. If port_ptr is
2087 * non-NULL, we must be parsing an rsync:// URL hostname, and we will set
2088 * *port_ptr if a port number is found. Note that IPv6 IPs will have their
2089 * (required for parsing) [ and ] chars elided from the returned string. */
2090 static char *parse_hostspec(char *str, char **path_start_ptr, int *port_ptr)
2091 {
2092 char *s, *host_start = str;
2093 int hostlen = 0, userlen = 0;
2094 char *ret;
2095
2096 for (s = str; ; s++) {
2097 if (!*s) {
2098 /* It is only OK if we run out of string with rsync:// */
2099 if (!port_ptr)
2100 return NULL;
2101 if (!hostlen)
2102 hostlen = s - host_start;
2103 break;
2104 }
2105 if (*s == ':' || *s == '/') {
2106 if (!hostlen)
2107 hostlen = s - host_start;
2108 if (*s++ == '/') {
2109 if (!port_ptr)
2110 return NULL;
2111 } else if (port_ptr) {
2112 *port_ptr = atoi(s);
2113 while (isDigit(s)) s++;
2114 if (*s && *s++ != '/')
2115 return NULL;
2116 }
2117 break;
2118 }
2119 if (*s == '@') {
2120 userlen = s - str + 1;
2121 host_start = s + 1;
2122 } else if (*s == '[') {
2123 if (s != host_start++)
2124 return NULL;
2125 while (*s && *s != ']' && *s != '/') s++; /*SHARED ITERATOR*/
2126 hostlen = s - host_start;
2127 if (*s != ']' || (s[1] && s[1] != '/' && s[1] != ':') || !hostlen)
2128 return NULL;
2129 }
2130 }
2131
2132 *path_start_ptr = s;
2133 ret = new_array(char, userlen + hostlen + 1);
2134 if (userlen)
2135 strlcpy(ret, str, userlen + 1);
2136 strlcpy(ret + userlen, host_start, hostlen + 1);
2137 return ret;
2138 }
2139
2140 /* Look for a HOST specfication of the form "HOST:PATH", "HOST::PATH", or
2141 * "rsync://HOST:PORT/PATH". If found, *host_ptr will be set to some allocated
2142 * memory with the HOST. If a daemon-accessing spec was specified, the value
2143 * of *port_ptr will contain a non-0 port number, otherwise it will be set to
2144 * 0. The return value is a pointer to the PATH. Note that the HOST spec can
2145 * be an IPv6 literal address enclosed in '[' and ']' (such as "[::1]" or
2146 * "[::ffff:127.0.0.1]") which is returned without the '[' and ']'. */
2147 char *check_for_hostspec(char *s, char **host_ptr, int *port_ptr)
2148 {
2149 char *path;
2150
2151 if (port_ptr && strncasecmp(URL_PREFIX, s, strlen(URL_PREFIX)) == 0) {
2152 *host_ptr = parse_hostspec(s + strlen(URL_PREFIX), &path, port_ptr);
2153 if (*host_ptr) {
2154 if (!*port_ptr)
2155 *port_ptr = RSYNC_PORT;
2156 return path;
2157 }
2158 }
2159
2160 *host_ptr = parse_hostspec(s, &path, NULL);
2161 if (!*host_ptr)
2162 return NULL;
2163
2164 if (*path == ':') {
2165 if (port_ptr && !*port_ptr)
2166 *port_ptr = RSYNC_PORT;
2167 return path + 1;
2168 }
2169 if (port_ptr)
2170 *port_ptr = 0;
2171
2172 return path;
2173 }