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Allow basic connectivity check via rrsync
[rsync.git] / options.c
blob578507c6e9cdcb8f76cec93de08ffaddf8279b70
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) 2002-2023 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 "itypes.h"
24 #include "ifuncs.h"
25 #include <popt.h>
26
27 extern int module_id;
28 extern int local_server;
29 extern int sanitize_paths;
30 extern int trust_sender_args;
31 extern int trust_sender_filter;
32 extern unsigned int module_dirlen;
33 extern filter_rule_list filter_list;
34 extern filter_rule_list daemon_filter_list;
35
36 int make_backups = 0;
37
38 /**
39 * If 1, send the whole file as literal data rather than trying to
40 * create an incremental diff.
41 *
42 * If -1, then look at whether we're local or remote and go by that.
43 *
44 * @sa disable_deltas_p()
45 **/
46 int whole_file = -1;
47
48 int append_mode = 0;
49 int keep_dirlinks = 0;
50 int copy_dirlinks = 0;
51 int copy_links = 0;
52 int copy_devices = 0;
53 int write_devices = 0;
54 int preserve_links = 0;
55 int preserve_hard_links = 0;
56 int preserve_acls = 0;
57 int preserve_xattrs = 0;
58 int preserve_perms = 0;
59 int preserve_executability = 0;
60 int preserve_devices = 0;
61 int preserve_specials = 0;
62 int preserve_uid = 0;
63 int preserve_gid = 0;
64 int preserve_mtimes = 0;
65 int preserve_atimes = 0;
66 int preserve_crtimes = 0;
67 int omit_dir_times = 0;
68 int omit_link_times = 0;
69 int trust_sender = 0;
70 int update_only = 0;
71 int open_noatime = 0;
72 int cvs_exclude = 0;
73 int dry_run = 0;
74 int do_xfers = 1;
75 int do_fsync = 0;
76 int ignore_times = 0;
77 int delete_mode = 0;
78 int delete_during = 0;
79 int delete_before = 0;
80 int delete_after = 0;
81 int delete_excluded = 0;
82 int remove_source_files = 0;
83 int one_file_system = 0;
84 int protocol_version = PROTOCOL_VERSION;
85 int sparse_files = 0;
86 int preallocate_files = 0;
87 int do_compression = 0;
88 int do_compression_level = CLVL_NOT_SPECIFIED;
89 int am_root = 0; /* 0 = normal, 1 = root, 2 = --super, -1 = --fake-super */
90 int am_server = 0;
91 int am_sender = 0;
92 int am_starting_up = 1;
93 int relative_paths = -1;
94 int implied_dirs = 1;
95 int missing_args = 0; /* 0 = FERROR_XFER, 1 = ignore, 2 = delete */
96 int numeric_ids = 0;
97 int msgs2stderr = 2; /* Default: send errors to stderr for local & remote-shell transfers */
98 int saw_stderr_opt = 0;
99 int allow_8bit_chars = 0;
100 int force_delete = 0;
101 int io_timeout = 0;
102 int prune_empty_dirs = 0;
103 int use_qsort = 0;
104 char *files_from = NULL;
105 int filesfrom_fd = -1;
106 char *filesfrom_host = NULL;
107 int eol_nulls = 0;
108 int protect_args = -1;
109 int old_style_args = -1;
110 int human_readable = 1;
111 int recurse = 0;
112 int mkpath_dest_arg = 0;
113 int allow_inc_recurse = 1;
114 int xfer_dirs = -1;
115 int am_daemon = 0;
116 int connect_timeout = 0;
117 int keep_partial = 0;
118 int safe_symlinks = 0;
119 int copy_unsafe_links = 0;
120 int munge_symlinks = 0;
121 int size_only = 0;
122 int daemon_bwlimit = 0;
123 int bwlimit = 0;
124 int fuzzy_basis = 0;
125 size_t bwlimit_writemax = 0;
126 int ignore_existing = 0;
127 int ignore_non_existing = 0;
128 int need_messages_from_generator = 0;
129 int max_delete = INT_MIN;
130 OFF_T max_size = -1;
131 OFF_T min_size = -1;
132 int ignore_errors = 0;
133 int modify_window = 0;
134 int blocking_io = -1;
135 int checksum_seed = 0;
136 int inplace = 0;
137 int delay_updates = 0;
138 int32 block_size = 0;
139 time_t stop_at_utime = 0;
140 char *skip_compress = NULL;
141 char *copy_as = NULL;
142 item_list dparam_list = EMPTY_ITEM_LIST;
143
144 /** Network address family. **/
145 int default_af_hint
146 #ifdef INET6
147 = 0; /* Any protocol */
148 #else
149 = AF_INET; /* Must use IPv4 */
150 # ifdef AF_INET6
151 # undef AF_INET6
152 # endif
153 # define AF_INET6 AF_INET /* make -6 option a no-op */
154 #endif
155
156 /** Do not go into the background when run as --daemon. Good
157 * for debugging and required for running as a service on W32,
158 * or under Unix process-monitors. **/
159 int no_detach
160 #if defined _WIN32 || defined __WIN32__
161 = 1;
162 #else
163 = 0;
164 #endif
165
166 int write_batch = 0;
167 int read_batch = 0;
168 int backup_dir_len = 0;
169 int backup_suffix_len;
170 unsigned int backup_dir_remainder;
171
172 char *backup_suffix = NULL;
173 char *tmpdir = NULL;
174 char *partial_dir = NULL;
175 char *basis_dir[MAX_BASIS_DIRS+1];
176 char *config_file = NULL;
177 char *shell_cmd = NULL;
178 char *logfile_name = NULL;
179 char *logfile_format = NULL;
180 char *stdout_format = NULL;
181 char *password_file = NULL;
182 char *early_input_file = NULL;
183 char *rsync_path = RSYNC_PATH;
184 char *backup_dir = NULL;
185 char backup_dir_buf[MAXPATHLEN];
186 char *sockopts = NULL;
187 char *usermap = NULL;
188 char *groupmap = NULL;
189 int rsync_port = 0;
190 int alt_dest_type = 0;
191 int basis_dir_cnt = 0;
192
193 #define DEFAULT_MAX_ALLOC (1024L * 1024 * 1024)
194 size_t max_alloc = DEFAULT_MAX_ALLOC;
195 char *max_alloc_arg;
196
197 static int version_opt_cnt = 0;
198 static int remote_option_alloc = 0;
199 int remote_option_cnt = 0;
200 const char **remote_options = NULL;
201 const char *checksum_choice = NULL;
202 const char *compress_choice = NULL;
203 static const char *empty_argv[1];
204
205 int quiet = 0;
206 int output_motd = 1;
207 int log_before_transfer = 0;
208 int stdout_format_has_i = 0;
209 int stdout_format_has_o_or_i = 0;
210 int logfile_format_has_i = 0;
211 int logfile_format_has_o_or_i = 0;
212 int always_checksum = 0;
213 int list_only = 0;
214
215 #define MAX_BATCH_NAME_LEN 256 /* Must be less than MAXPATHLEN-13 */
216 char *batch_name = NULL;
217
218 int need_unsorted_flist = 0;
219 char *iconv_opt =
220 #ifdef ICONV_OPTION
221 ICONV_OPTION;
222 #else
223 NULL;
224 #endif
225
226 struct chmod_mode_struct *chmod_modes = NULL;
227
228 static const char *debug_verbosity[] = {
229 /*0*/ NULL,
230 /*1*/ NULL,
231 /*2*/ "BIND,CMD,CONNECT,DEL,DELTASUM,DUP,FILTER,FLIST,ICONV",
232 /*3*/ "ACL,BACKUP,CONNECT2,DELTASUM2,DEL2,EXIT,FILTER2,FLIST2,FUZZY,GENR,OWN,RECV,SEND,TIME",
233 /*4*/ "CMD2,DELTASUM3,DEL3,EXIT2,FLIST3,ICONV2,OWN2,PROTO,TIME2",
234 /*5*/ "CHDIR,DELTASUM4,FLIST4,FUZZY2,HASH,HLINK",
235 };
236
237 #define MAX_VERBOSITY ((int)(sizeof debug_verbosity / sizeof debug_verbosity[0]) - 1)
238
239 static const char *info_verbosity[1+MAX_VERBOSITY] = {
240 /*0*/ "NONREG",
241 /*1*/ "COPY,DEL,FLIST,MISC,NAME,STATS,SYMSAFE",
242 /*2*/ "BACKUP,MISC2,MOUNT,NAME2,REMOVE,SKIP",
243 };
244
245 #define MAX_OUT_LEVEL 4 /* The largest N allowed for any flagN word. */
246
247 short info_levels[COUNT_INFO], debug_levels[COUNT_DEBUG];
248
249 #define DEFAULT_PRIORITY 0 /* Default/implied/--verbose set values. */
250 #define HELP_PRIORITY 1 /* The help output uses this level. */
251 #define USER_PRIORITY 2 /* User-specified via --info or --debug */
252 #define LIMIT_PRIORITY 3 /* Overriding priority when limiting values. */
253
254 #define W_CLI (1<<0) /* client side */
255 #define W_SRV (1<<1) /* server side */
256 #define W_SND (1<<2) /* sending side */
257 #define W_REC (1<<3) /* receiving side */
258
259 struct output_struct {
260 char *name; /* The name of the info/debug flag. */
261 char *help; /* The description of the info/debug flag. */
262 uchar namelen; /* The length of the name string. */
263 uchar flag; /* The flag's value, for consistency check. */
264 uchar where; /* Bits indicating where the flag is used. */
265 uchar priority; /* See *_PRIORITY defines. */
266 };
267
268 #define INFO_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, INFO_##flag, where, 0 }
269
270 static struct output_struct info_words[COUNT_INFO+1] = {
271 INFO_WORD(BACKUP, W_REC, "Mention files backed up"),
272 INFO_WORD(COPY, W_REC, "Mention files copied locally on the receiving side"),
273 INFO_WORD(DEL, W_REC, "Mention deletions on the receiving side"),
274 INFO_WORD(FLIST, W_CLI, "Mention file-list receiving/sending (levels 1-2)"),
275 INFO_WORD(MISC, W_SND|W_REC, "Mention miscellaneous information (levels 1-2)"),
276 INFO_WORD(MOUNT, W_SND|W_REC, "Mention mounts that were found or skipped"),
277 INFO_WORD(NAME, W_SND|W_REC, "Mention 1) updated file/dir names, 2) unchanged names"),
278 INFO_WORD(NONREG, W_REC, "Mention skipped non-regular files (default 1, 0 disables)"),
279 INFO_WORD(PROGRESS, W_CLI, "Mention 1) per-file progress or 2) total transfer progress"),
280 INFO_WORD(REMOVE, W_SND, "Mention files removed on the sending side"),
281 INFO_WORD(SKIP, W_REC, "Mention files skipped due to transfer overrides (levels 1-2)"),
282 INFO_WORD(STATS, W_CLI|W_SRV, "Mention statistics at end of run (levels 1-3)"),
283 INFO_WORD(SYMSAFE, W_SND|W_REC, "Mention symlinks that are unsafe"),
284 { NULL, "--info", 0, 0, 0, 0 }
285 };
286
287 #define DEBUG_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, DEBUG_##flag, where, 0 }
288
289 static struct output_struct debug_words[COUNT_DEBUG+1] = {
290 DEBUG_WORD(ACL, W_SND|W_REC, "Debug extra ACL info"),
291 DEBUG_WORD(BACKUP, W_REC, "Debug backup actions (levels 1-2)"),
292 DEBUG_WORD(BIND, W_CLI, "Debug socket bind actions"),
293 DEBUG_WORD(CHDIR, W_CLI|W_SRV, "Debug when the current directory changes"),
294 DEBUG_WORD(CONNECT, W_CLI, "Debug connection events (levels 1-2)"),
295 DEBUG_WORD(CMD, W_CLI, "Debug commands+options that are issued (levels 1-2)"),
296 DEBUG_WORD(DEL, W_REC, "Debug delete actions (levels 1-3)"),
297 DEBUG_WORD(DELTASUM, W_SND|W_REC, "Debug delta-transfer checksumming (levels 1-4)"),
298 DEBUG_WORD(DUP, W_REC, "Debug weeding of duplicate names"),
299 DEBUG_WORD(EXIT, W_CLI|W_SRV, "Debug exit events (levels 1-3)"),
300 DEBUG_WORD(FILTER, W_SND|W_REC, "Debug filter actions (levels 1-3)"),
301 DEBUG_WORD(FLIST, W_SND|W_REC, "Debug file-list operations (levels 1-4)"),
302 DEBUG_WORD(FUZZY, W_REC, "Debug fuzzy scoring (levels 1-2)"),
303 DEBUG_WORD(GENR, W_REC, "Debug generator functions"),
304 DEBUG_WORD(HASH, W_SND|W_REC, "Debug hashtable code"),
305 DEBUG_WORD(HLINK, W_SND|W_REC, "Debug hard-link actions (levels 1-3)"),
306 DEBUG_WORD(ICONV, W_CLI|W_SRV, "Debug iconv character conversions (levels 1-2)"),
307 DEBUG_WORD(IO, W_CLI|W_SRV, "Debug I/O routines (levels 1-4)"),
308 DEBUG_WORD(NSTR, W_CLI|W_SRV, "Debug negotiation strings"),
309 DEBUG_WORD(OWN, W_REC, "Debug ownership changes in users & groups (levels 1-2)"),
310 DEBUG_WORD(PROTO, W_CLI|W_SRV, "Debug protocol information"),
311 DEBUG_WORD(RECV, W_REC, "Debug receiver functions"),
312 DEBUG_WORD(SEND, W_SND, "Debug sender functions"),
313 DEBUG_WORD(TIME, W_REC, "Debug setting of modified times (levels 1-2)"),
314 { NULL, "--debug", 0, 0, 0, 0 }
315 };
316
317 static int verbose = 0;
318 static int do_stats = 0;
319 static int do_progress = 0;
320 static int daemon_opt; /* sets am_daemon after option error-reporting */
321 static int F_option_cnt = 0;
322 static int modify_window_set;
323 static int itemize_changes = 0;
324 static int refused_delete, refused_archive_part, refused_compress;
325 static int refused_partial, refused_progress, refused_delete_before;
326 static int refused_delete_during;
327 static int refused_inplace, refused_no_iconv;
328 static BOOL usermap_via_chown, groupmap_via_chown;
329 static char *outbuf_mode;
330 static char *bwlimit_arg, *max_size_arg, *min_size_arg;
331 static char tmp_partialdir[] = ".~tmp~";
332
333 /** Local address to bind. As a character string because it's
334 * interpreted by the IPv6 layer: should be a numeric IP4 or IP6
335 * address, or a hostname. **/
336 char *bind_address;
337
338 static void output_item_help(struct output_struct *words);
339
340 /* This constructs a string that represents all the options set for either
341 * the --info or --debug setting, skipping any implied options (by -v, etc.).
342 * This is used both when conveying the user's options to the server, and
343 * when the help output wants to tell the user what options are implied. */
344 static char *make_output_option(struct output_struct *words, short *levels, uchar where)
345 {
346 char *str = words == info_words ? "--info=" : "--debug=";
347 int j, counts[MAX_OUT_LEVEL+1], pos, skipped = 0, len = 0, max = 0, lev = 0;
348 int word_count = words == info_words ? COUNT_INFO : COUNT_DEBUG;
349 char *buf;
350
351 memset(counts, 0, sizeof counts);
352
353 for (j = 0; words[j].name; j++) {
354 if (words[j].flag != j) {
355 rprintf(FERROR, "rsync: internal error on %s%s: %d != %d\n",
356 words == info_words ? "INFO_" : "DEBUG_",
357 words[j].name, words[j].flag, j);
358 exit_cleanup(RERR_UNSUPPORTED);
359 }
360 if (!(words[j].where & where))
361 continue;
362 if (words[j].priority == DEFAULT_PRIORITY) {
363 /* Implied items don't need to be mentioned. */
364 skipped++;
365 continue;
366 }
367 len += len ? 1 : strlen(str);
368 len += strlen(words[j].name);
369 len += levels[j] == 1 ? 0 : 1;
370
371 if (words[j].priority == HELP_PRIORITY)
372 continue; /* no abbreviating for help */
373
374 assert(levels[j] <= MAX_OUT_LEVEL);
375 if (++counts[levels[j]] > max) {
376 /* Determine which level has the most items. */
377 lev = levels[j];
378 max = counts[lev];
379 }
380 }
381
382 /* Sanity check the COUNT_* define against the length of the table. */
383 if (j != word_count) {
384 rprintf(FERROR, "rsync: internal error: %s is wrong! (%d != %d)\n",
385 words == info_words ? "COUNT_INFO" : "COUNT_DEBUG",
386 j, word_count);
387 exit_cleanup(RERR_UNSUPPORTED);
388 }
389
390 if (!len)
391 return NULL;
392
393 len++;
394 buf = new_array(char, len);
395 pos = 0;
396
397 if (skipped || max < 5)
398 lev = -1;
399 else {
400 if (lev == 0)
401 pos += snprintf(buf, len, "%sNONE", str);
402 else if (lev == 1)
403 pos += snprintf(buf, len, "%sALL", str);
404 else
405 pos += snprintf(buf, len, "%sALL%d", str, lev);
406 }
407
408 for (j = 0; words[j].name && pos < len; j++) {
409 if (words[j].priority == DEFAULT_PRIORITY || levels[j] == lev || !(words[j].where & where))
410 continue;
411 if (pos)
412 buf[pos++] = ',';
413 else
414 pos += strlcpy(buf+pos, str, len-pos);
415 if (pos < len)
416 pos += strlcpy(buf+pos, words[j].name, len-pos);
417 /* Level 1 is implied by the name alone. */
418 if (levels[j] != 1 && pos < len)
419 buf[pos++] = '0' + levels[j];
420 }
421
422 buf[pos] = '\0';
423
424 return buf;
425 }
426
427 static void parse_output_words(struct output_struct *words, short *levels, const char *str, uchar priority)
428 {
429 const char *s;
430 int j, len, lev;
431
432 for ( ; str; str = s) {
433 if ((s = strchr(str, ',')) != NULL)
434 len = s++ - str;
435 else
436 len = strlen(str);
437 if (!len)
438 continue;
439 if (!isDigit(str)) {
440 while (len && isDigit(str+len-1))
441 len--;
442 }
443 lev = isDigit(str+len) ? atoi(str+len) : 1;
444 if (lev > MAX_OUT_LEVEL)
445 lev = MAX_OUT_LEVEL;
446 if (len == 4 && strncasecmp(str, "help", 4) == 0) {
447 output_item_help(words);
448 exit_cleanup(0);
449 }
450 if (len == 4 && strncasecmp(str, "none", 4) == 0)
451 len = lev = 0;
452 else if (len == 3 && strncasecmp(str, "all", 3) == 0)
453 len = 0;
454 for (j = 0; words[j].name; j++) {
455 if (!len
456 || (len == words[j].namelen && strncasecmp(str, words[j].name, len) == 0)) {
457 if (priority >= words[j].priority) {
458 words[j].priority = priority;
459 levels[j] = lev;
460 }
461 if (len)
462 break;
463 }
464 }
465 if (len && !words[j].name && !am_server) {
466 rprintf(FERROR, "Unknown %s item: \"%.*s\"\n",
467 words[j].help, len, str);
468 exit_cleanup(RERR_SYNTAX);
469 }
470 }
471 }
472
473 /* Tell the user what all the info or debug flags mean. */
474 static void output_item_help(struct output_struct *words)
475 {
476 short *levels = words == info_words ? info_levels : debug_levels;
477 const char **verbosity = words == info_words ? info_verbosity : debug_verbosity;
478 char buf[128], *opt, *fmt = "%-10s %s\n";
479 int j;
480
481 reset_output_levels();
482
483 rprintf(FINFO, "Use OPT or OPT1 for level 1 output, OPT2 for level 2, etc.; OPT0 silences.\n");
484 rprintf(FINFO, "\n");
485 for (j = 0; words[j].name; j++)
486 rprintf(FINFO, fmt, words[j].name, words[j].help);
487 rprintf(FINFO, "\n");
488
489 snprintf(buf, sizeof buf, "Set all %s options (e.g. all%d)",
490 words[j].help, MAX_OUT_LEVEL);
491 rprintf(FINFO, fmt, "ALL", buf);
492
493 snprintf(buf, sizeof buf, "Silence all %s options (same as all0)",
494 words[j].help);
495 rprintf(FINFO, fmt, "NONE", buf);
496
497 rprintf(FINFO, fmt, "HELP", "Output this help message");
498 rprintf(FINFO, "\n");
499 rprintf(FINFO, "Options added at each level of verbosity:\n");
500
501 for (j = 0; j <= MAX_VERBOSITY; j++) {
502 parse_output_words(words, levels, verbosity[j], HELP_PRIORITY);
503 opt = make_output_option(words, levels, W_CLI|W_SRV|W_SND|W_REC);
504 if (opt) {
505 rprintf(FINFO, "%d) %s\n", j, strchr(opt, '=')+1);
506 free(opt);
507 }
508 reset_output_levels();
509 }
510 }
511
512 /* The --verbose option now sets info+debug flags. */
513 static void set_output_verbosity(int level, uchar priority)
514 {
515 int j;
516
517 if (level > MAX_VERBOSITY)
518 level = MAX_VERBOSITY;
519
520 for (j = 0; j <= level; j++) {
521 parse_output_words(info_words, info_levels, info_verbosity[j], priority);
522 parse_output_words(debug_words, debug_levels, debug_verbosity[j], priority);
523 }
524 }
525
526 /* Limit the info+debug flag levels given a verbose-option level limit. */
527 void limit_output_verbosity(int level)
528 {
529 short info_limits[COUNT_INFO], debug_limits[COUNT_DEBUG];
530 int j;
531
532 if (level > MAX_VERBOSITY)
533 return;
534
535 memset(info_limits, 0, sizeof info_limits);
536 memset(debug_limits, 0, sizeof debug_limits);
537
538 /* Compute the level limits in the above arrays. */
539 for (j = 0; j <= level; j++) {
540 parse_output_words(info_words, info_limits, info_verbosity[j], LIMIT_PRIORITY);
541 parse_output_words(debug_words, debug_limits, debug_verbosity[j], LIMIT_PRIORITY);
542 }
543
544 for (j = 0; j < COUNT_INFO; j++) {
545 if (info_levels[j] > info_limits[j])
546 info_levels[j] = info_limits[j];
547 }
548
549 for (j = 0; j < COUNT_DEBUG; j++) {
550 if (debug_levels[j] > debug_limits[j])
551 debug_levels[j] = debug_limits[j];
552 }
553 }
554
555 void reset_output_levels(void)
556 {
557 int j;
558
559 memset(info_levels, 0, sizeof info_levels);
560 memset(debug_levels, 0, sizeof debug_levels);
561
562 for (j = 0; j < COUNT_INFO; j++)
563 info_words[j].priority = DEFAULT_PRIORITY;
564
565 for (j = 0; j < COUNT_DEBUG; j++)
566 debug_words[j].priority = DEFAULT_PRIORITY;
567 }
568
569 void negate_output_levels(void)
570 {
571 int j;
572
573 for (j = 0; j < COUNT_INFO; j++)
574 info_levels[j] *= -1;
575
576 for (j = 0; j < COUNT_DEBUG; j++)
577 debug_levels[j] *= -1;
578 }
579
580 enum {OPT_SERVER = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
581 OPT_FILTER, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST, OPT_HELP,
582 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW, OPT_MIN_SIZE, OPT_CHMOD,
583 OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_ONLY_WRITE_BATCH, OPT_MAX_SIZE,
584 OPT_NO_D, OPT_APPEND, OPT_NO_ICONV, OPT_INFO, OPT_DEBUG, OPT_BLOCK_SIZE,
585 OPT_USERMAP, OPT_GROUPMAP, OPT_CHOWN, OPT_BWLIMIT, OPT_STDERR,
586 OPT_OLD_COMPRESS, OPT_NEW_COMPRESS, OPT_NO_COMPRESS, OPT_OLD_ARGS,
587 OPT_STOP_AFTER, OPT_STOP_AT,
588 OPT_REFUSED_BASE = 9000};
589
590 static struct poptOption long_options[] = {
591 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
592 {"help", 0, POPT_ARG_NONE, 0, OPT_HELP, 0, 0 },
593 {"version", 'V', POPT_ARG_NONE, 0, 'V', 0, 0},
594 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
595 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
596 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
597 {"info", 0, POPT_ARG_STRING, 0, OPT_INFO, 0, 0 },
598 {"debug", 0, POPT_ARG_STRING, 0, OPT_DEBUG, 0, 0 },
599 {"stderr", 0, POPT_ARG_STRING, 0, OPT_STDERR, 0, 0 },
600 {"msgs2stderr", 0, POPT_ARG_VAL, &msgs2stderr, 1, 0, 0 },
601 {"no-msgs2stderr", 0, POPT_ARG_VAL, &msgs2stderr, 0, 0, 0 },
602 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
603 {"motd", 0, POPT_ARG_VAL, &output_motd, 1, 0, 0 },
604 {"no-motd", 0, POPT_ARG_VAL, &output_motd, 0, 0, 0 },
605 {"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
606 {"human-readable", 'h', POPT_ARG_NONE, 0, 'h', 0, 0},
607 {"no-human-readable",0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
608 {"no-h", 0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
609 {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
610 {"archive", 'a', POPT_ARG_NONE, 0, 'a', 0, 0 },
611 {"recursive", 'r', POPT_ARG_VAL, &recurse, 2, 0, 0 },
612 {"no-recursive", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
613 {"no-r", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
614 {"inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
615 {"no-inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
616 {"i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
617 {"no-i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
618 {"dirs", 'd', POPT_ARG_VAL, &xfer_dirs, 2, 0, 0 },
619 {"no-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
620 {"no-d", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
621 {"old-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
622 {"old-d", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
623 {"perms", 'p', POPT_ARG_VAL, &preserve_perms, 1, 0, 0 },
624 {"no-perms", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
625 {"no-p", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
626 {"executability", 'E', POPT_ARG_NONE, &preserve_executability, 0, 0, 0 },
627 {"acls", 'A', POPT_ARG_NONE, 0, 'A', 0, 0 },
628 {"no-acls", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
629 {"no-A", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
630 {"xattrs", 'X', POPT_ARG_NONE, 0, 'X', 0, 0 },
631 {"no-xattrs", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
632 {"no-X", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
633 {"times", 't', POPT_ARG_VAL, &preserve_mtimes, 1, 0, 0 },
634 {"no-times", 0, POPT_ARG_VAL, &preserve_mtimes, 0, 0, 0 },
635 {"no-t", 0, POPT_ARG_VAL, &preserve_mtimes, 0, 0, 0 },
636 {"atimes", 'U', POPT_ARG_NONE, 0, 'U', 0, 0 },
637 {"no-atimes", 0, POPT_ARG_VAL, &preserve_atimes, 0, 0, 0 },
638 {"no-U", 0, POPT_ARG_VAL, &preserve_atimes, 0, 0, 0 },
639 {"open-noatime", 0, POPT_ARG_VAL, &open_noatime, 1, 0, 0 },
640 {"no-open-noatime", 0, POPT_ARG_VAL, &open_noatime, 0, 0, 0 },
641 {"crtimes", 'N', POPT_ARG_VAL, &preserve_crtimes, 1, 0, 0 },
642 {"no-crtimes", 0, POPT_ARG_VAL, &preserve_crtimes, 0, 0, 0 },
643 {"no-N", 0, POPT_ARG_VAL, &preserve_crtimes, 0, 0, 0 },
644 {"omit-dir-times", 'O', POPT_ARG_VAL, &omit_dir_times, 1, 0, 0 },
645 {"no-omit-dir-times",0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
646 {"no-O", 0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
647 {"omit-link-times", 'J', POPT_ARG_VAL, &omit_link_times, 1, 0, 0 },
648 {"no-omit-link-times",0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
649 {"no-J", 0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
650 {"modify-window", '@', POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
651 {"super", 0, POPT_ARG_VAL, &am_root, 2, 0, 0 },
652 {"no-super", 0, POPT_ARG_VAL, &am_root, 0, 0, 0 },
653 {"fake-super", 0, POPT_ARG_VAL, &am_root, -1, 0, 0 },
654 {"owner", 'o', POPT_ARG_VAL, &preserve_uid, 1, 0, 0 },
655 {"no-owner", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
656 {"no-o", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
657 {"group", 'g', POPT_ARG_VAL, &preserve_gid, 1, 0, 0 },
658 {"no-group", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
659 {"no-g", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
660 {0, 'D', POPT_ARG_NONE, 0, 'D', 0, 0 },
661 {"no-D", 0, POPT_ARG_NONE, 0, OPT_NO_D, 0, 0 },
662 {"devices", 0, POPT_ARG_VAL, &preserve_devices, 1, 0, 0 },
663 {"no-devices", 0, POPT_ARG_VAL, &preserve_devices, 0, 0, 0 },
664 {"copy-devices", 0, POPT_ARG_NONE, &copy_devices, 0, 0, 0 },
665 {"write-devices", 0, POPT_ARG_VAL, &write_devices, 1, 0, 0 },
666 {"no-write-devices", 0, POPT_ARG_VAL, &write_devices, 0, 0, 0 },
667 {"specials", 0, POPT_ARG_VAL, &preserve_specials, 1, 0, 0 },
668 {"no-specials", 0, POPT_ARG_VAL, &preserve_specials, 0, 0, 0 },
669 {"links", 'l', POPT_ARG_VAL, &preserve_links, 1, 0, 0 },
670 {"no-links", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
671 {"no-l", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
672 {"copy-links", 'L', POPT_ARG_NONE, &copy_links, 0, 0, 0 },
673 {"copy-unsafe-links",0, POPT_ARG_NONE, &copy_unsafe_links, 0, 0, 0 },
674 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
675 {"munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 1, 0, 0 },
676 {"no-munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 0, 0, 0 },
677 {"copy-dirlinks", 'k', POPT_ARG_NONE, &copy_dirlinks, 0, 0, 0 },
678 {"keep-dirlinks", 'K', POPT_ARG_NONE, &keep_dirlinks, 0, 0, 0 },
679 {"hard-links", 'H', POPT_ARG_NONE, 0, 'H', 0, 0 },
680 {"no-hard-links", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
681 {"no-H", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
682 {"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 },
683 {"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
684 {"no-R", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
685 {"implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
686 {"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
687 {"i-d", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
688 {"no-i-d", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
689 {"chmod", 0, POPT_ARG_STRING, 0, OPT_CHMOD, 0, 0 },
690 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 },
691 {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 },
692 {"one-file-system", 'x', POPT_ARG_NONE, 0, 'x', 0, 0 },
693 {"no-one-file-system",0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
694 {"no-x", 0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
695 {"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 },
696 {"existing", 0, POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
697 {"ignore-non-existing",0,POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
698 {"ignore-existing", 0, POPT_ARG_NONE, &ignore_existing, 0, 0, 0 },
699 {"max-size", 0, POPT_ARG_STRING, &max_size_arg, OPT_MAX_SIZE, 0, 0 },
700 {"min-size", 0, POPT_ARG_STRING, &min_size_arg, OPT_MIN_SIZE, 0, 0 },
701 {"max-alloc", 0, POPT_ARG_STRING, &max_alloc_arg, 0, 0, 0 },
702 {"sparse", 'S', POPT_ARG_VAL, &sparse_files, 1, 0, 0 },
703 {"no-sparse", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
704 {"no-S", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
705 {"preallocate", 0, POPT_ARG_NONE, &preallocate_files, 0, 0, 0},
706 {"inplace", 0, POPT_ARG_VAL, &inplace, 1, 0, 0 },
707 {"no-inplace", 0, POPT_ARG_VAL, &inplace, 0, 0, 0 },
708 {"append", 0, POPT_ARG_NONE, 0, OPT_APPEND, 0, 0 },
709 {"append-verify", 0, POPT_ARG_VAL, &append_mode, 2, 0, 0 },
710 {"no-append", 0, POPT_ARG_VAL, &append_mode, 0, 0, 0 },
711 {"del", 0, POPT_ARG_NONE, &delete_during, 0, 0, 0 },
712 {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
713 {"delete-before", 0, POPT_ARG_NONE, &delete_before, 0, 0, 0 },
714 {"delete-during", 0, POPT_ARG_VAL, &delete_during, 1, 0, 0 },
715 {"delete-delay", 0, POPT_ARG_VAL, &delete_during, 2, 0, 0 },
716 {"delete-after", 0, POPT_ARG_NONE, &delete_after, 0, 0, 0 },
717 {"delete-excluded", 0, POPT_ARG_NONE, &delete_excluded, 0, 0, 0 },
718 {"delete-missing-args",0,POPT_BIT_SET, &missing_args, 2, 0, 0 },
719 {"ignore-missing-args",0,POPT_BIT_SET, &missing_args, 1, 0, 0 },
720 {"remove-sent-files",0, POPT_ARG_VAL, &remove_source_files, 2, 0, 0 }, /* deprecated */
721 {"remove-source-files",0,POPT_ARG_VAL, &remove_source_files, 1, 0, 0 },
722 {"force", 0, POPT_ARG_VAL, &force_delete, 1, 0, 0 },
723 {"no-force", 0, POPT_ARG_VAL, &force_delete, 0, 0, 0 },
724 {"ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 1, 0, 0 },
725 {"no-ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 0, 0, 0 },
726 {"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
727 {0, 'F', POPT_ARG_NONE, 0, 'F', 0, 0 },
728 {"filter", 'f', POPT_ARG_STRING, 0, OPT_FILTER, 0, 0 },
729 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
730 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
731 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
732 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
733 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
734 {"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
735 {"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
736 {"no-W", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
737 {"checksum", 'c', POPT_ARG_VAL, &always_checksum, 1, 0, 0 },
738 {"no-checksum", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
739 {"no-c", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
740 {"checksum-choice", 0, POPT_ARG_STRING, &checksum_choice, 0, 0, 0 },
741 {"cc", 0, POPT_ARG_STRING, &checksum_choice, 0, 0, 0 },
742 {"block-size", 'B', POPT_ARG_STRING, 0, OPT_BLOCK_SIZE, 0, 0 },
743 {"compare-dest", 0, POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 },
744 {"copy-dest", 0, POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 },
745 {"link-dest", 0, POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 },
746 {"fuzzy", 'y', POPT_ARG_NONE, 0, 'y', 0, 0 },
747 {"no-fuzzy", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
748 {"no-y", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
749 {"compress", 'z', POPT_ARG_NONE, 0, 'z', 0, 0 },
750 {"old-compress", 0, POPT_ARG_NONE, 0, OPT_OLD_COMPRESS, 0, 0 },
751 {"new-compress", 0, POPT_ARG_NONE, 0, OPT_NEW_COMPRESS, 0, 0 },
752 {"no-compress", 0, POPT_ARG_NONE, 0, OPT_NO_COMPRESS, 0, 0 },
753 {"no-z", 0, POPT_ARG_NONE, 0, OPT_NO_COMPRESS, 0, 0 },
754 {"compress-choice", 0, POPT_ARG_STRING, &compress_choice, 0, 0, 0 },
755 {"zc", 0, POPT_ARG_STRING, &compress_choice, 0, 0, 0 },
756 {"skip-compress", 0, POPT_ARG_STRING, &skip_compress, 0, 0, 0 },
757 {"compress-level", 0, POPT_ARG_INT, &do_compression_level, 0, 0, 0 },
758 {"zl", 0, POPT_ARG_INT, &do_compression_level, 0, 0, 0 },
759 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
760 {"progress", 0, POPT_ARG_VAL, &do_progress, 1, 0, 0 },
761 {"no-progress", 0, POPT_ARG_VAL, &do_progress, 0, 0, 0 },
762 {"partial", 0, POPT_ARG_VAL, &keep_partial, 1, 0, 0 },
763 {"no-partial", 0, POPT_ARG_VAL, &keep_partial, 0, 0, 0 },
764 {"partial-dir", 0, POPT_ARG_STRING, &partial_dir, 0, 0, 0 },
765 {"delay-updates", 0, POPT_ARG_VAL, &delay_updates, 1, 0, 0 },
766 {"no-delay-updates", 0, POPT_ARG_VAL, &delay_updates, 0, 0, 0 },
767 {"prune-empty-dirs",'m', POPT_ARG_VAL, &prune_empty_dirs, 1, 0, 0 },
768 {"no-prune-empty-dirs",0,POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
769 {"no-m", 0, POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
770 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
771 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
772 {"out-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 },
773 {"log-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 }, /* DEPRECATED */
774 {"itemize-changes", 'i', POPT_ARG_NONE, 0, 'i', 0, 0 },
775 {"no-itemize-changes",0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
776 {"no-i", 0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
777 {"bwlimit", 0, POPT_ARG_STRING, &bwlimit_arg, OPT_BWLIMIT, 0, 0 },
778 {"no-bwlimit", 0, POPT_ARG_VAL, &bwlimit, 0, 0, 0 },
779 {"backup", 'b', POPT_ARG_VAL, &make_backups, 1, 0, 0 },
780 {"no-backup", 0, POPT_ARG_VAL, &make_backups, 0, 0, 0 },
781 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
782 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
783 {"list-only", 0, POPT_ARG_VAL, &list_only, 2, 0, 0 },
784 {"read-batch", 0, POPT_ARG_STRING, &batch_name, OPT_READ_BATCH, 0, 0 },
785 {"write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_WRITE_BATCH, 0, 0 },
786 {"only-write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_ONLY_WRITE_BATCH, 0, 0 },
787 {"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
788 {"from0", '0', POPT_ARG_VAL, &eol_nulls, 1, 0, 0},
789 {"no-from0", 0, POPT_ARG_VAL, &eol_nulls, 0, 0, 0},
790 {"old-args", 0, POPT_ARG_NONE, 0, OPT_OLD_ARGS, 0, 0},
791 {"no-old-args", 0, POPT_ARG_VAL, &old_style_args, 0, 0, 0},
792 {"secluded-args", 's', POPT_ARG_VAL, &protect_args, 1, 0, 0},
793 {"no-secluded-args", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
794 {"protect-args", 0, POPT_ARG_VAL, &protect_args, 1, 0, 0},
795 {"no-protect-args", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
796 {"no-s", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
797 {"trust-sender", 0, POPT_ARG_VAL, &trust_sender, 1, 0, 0},
798 {"numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 1, 0, 0 },
799 {"no-numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 0, 0, 0 },
800 {"usermap", 0, POPT_ARG_STRING, 0, OPT_USERMAP, 0, 0 },
801 {"groupmap", 0, POPT_ARG_STRING, 0, OPT_GROUPMAP, 0, 0 },
802 {"chown", 0, POPT_ARG_STRING, 0, OPT_CHOWN, 0, 0 },
803 {"timeout", 0, POPT_ARG_INT, &io_timeout, 0, 0, 0 },
804 {"no-timeout", 0, POPT_ARG_VAL, &io_timeout, 0, 0, 0 },
805 {"contimeout", 0, POPT_ARG_INT, &connect_timeout, 0, 0, 0 },
806 {"no-contimeout", 0, POPT_ARG_VAL, &connect_timeout, 0, 0, 0 },
807 {"fsync", 0, POPT_ARG_NONE, &do_fsync, 0, 0, 0 },
808 {"stop-after", 0, POPT_ARG_STRING, 0, OPT_STOP_AFTER, 0, 0 },
809 {"time-limit", 0, POPT_ARG_STRING, 0, OPT_STOP_AFTER, 0, 0 }, /* earlier stop-after name */
810 {"stop-at", 0, POPT_ARG_STRING, 0, OPT_STOP_AT, 0, 0 },
811 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
812 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
813 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
814 {"iconv", 0, POPT_ARG_STRING, &iconv_opt, 0, 0, 0 },
815 {"no-iconv", 0, POPT_ARG_NONE, 0, OPT_NO_ICONV, 0, 0 },
816 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
817 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
818 {"8-bit-output", '8', POPT_ARG_VAL, &allow_8bit_chars, 1, 0, 0 },
819 {"no-8-bit-output", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
820 {"no-8", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
821 {"mkpath", 0, POPT_ARG_VAL, &mkpath_dest_arg, 1, 0, 0 },
822 {"no-mkpath", 0, POPT_ARG_VAL, &mkpath_dest_arg, 0, 0, 0 },
823 {"qsort", 0, POPT_ARG_NONE, &use_qsort, 0, 0, 0 },
824 {"copy-as", 0, POPT_ARG_STRING, &copy_as, 0, 0, 0 },
825 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
826 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
827 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
828 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
829 {"early-input", 0, POPT_ARG_STRING, &early_input_file, 0, 0, 0 },
830 {"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
831 {"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
832 {"outbuf", 0, POPT_ARG_STRING, &outbuf_mode, 0, 0, 0 },
833 {"remote-option", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
834 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
835 {"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 },
836 {"server", 0, POPT_ARG_NONE, 0, OPT_SERVER, 0, 0 },
837 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
838 /* All the following options switch us into daemon-mode option-parsing. */
839 {"config", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
840 {"daemon", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
841 {"dparam", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
842 {"detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
843 {"no-detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
844 {0,0,0,0, 0, 0, 0}
845 };
846
847 static struct poptOption long_daemon_options[] = {
848 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
849 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
850 {"bwlimit", 0, POPT_ARG_INT, &daemon_bwlimit, 0, 0, 0 },
851 {"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
852 {"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
853 {"dparam", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
854 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
855 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
856 {"detach", 0, POPT_ARG_VAL, &no_detach, 0, 0, 0 },
857 {"no-detach", 0, POPT_ARG_VAL, &no_detach, 1, 0, 0 },
858 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
859 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
860 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
861 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
862 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
863 {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
864 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
865 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
866 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
867 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
868 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
869 {0,0,0,0, 0, 0, 0}
870 };
871
872
873 static char err_buf[200];
874
875
876 /**
877 * Store the option error message, if any, so that we can log the
878 * connection attempt (which requires parsing the options), and then
879 * show the error later on.
880 **/
881 void option_error(void)
882 {
883 if (!err_buf[0]) {
884 strlcpy(err_buf, "Error parsing options: option may "
885 "be supported on client but not on server?\n",
886 sizeof err_buf);
887 }
888
889 rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
890 io_flush(MSG_FLUSH);
891 msleep(20);
892 }
893
894
895 static void parse_one_refuse_match(int negated, const char *ref, const struct poptOption *list_end)
896 {
897 struct poptOption *op;
898 char shortName[2];
899 int is_wild = strpbrk(ref, "*?[") != NULL;
900 int found_match = 0;
901
902 shortName[1] = '\0';
903
904 if (strcmp("a", ref) == 0 || strcmp("archive", ref) == 0) {
905 ref = "[ardlptgoD]";
906 is_wild = 1;
907 }
908
909 for (op = long_options; op != list_end; op++) {
910 *shortName = op->shortName;
911 if ((op->longName && wildmatch(ref, op->longName))
912 || (*shortName && wildmatch(ref, shortName))) {
913 if (op->descrip[1] == '*')
914 op->descrip = negated ? "a*" : "r*";
915 else if (!is_wild)
916 op->descrip = negated ? "a=" : "r=";
917 found_match = 1;
918 if (!is_wild)
919 break;
920 }
921 }
922
923 if (!found_match)
924 rprintf(FLOG, "No match for refuse-options string \"%s\"\n", ref);
925 }
926
927
928 /**
929 * Tweak the option table to disable all options that the rsyncd.conf
930 * file has told us to refuse.
931 **/
932 static void set_refuse_options(void)
933 {
934 struct poptOption *op, *list_end = NULL;
935 char *cp, *ref = lp_refuse_options(module_id);
936 int negated;
937
938 if (!ref)
939 ref = "";
940
941 if (!am_daemon)
942 ref = "";
943
944 /* We abuse the descrip field in poptOption to make it easy to flag which options
945 * are refused (since we don't use it otherwise). Start by marking all options
946 * as "a"ccepted with a few options also marked as non-wild. */
947 for (op = long_options; ; op++) {
948 const char *longName = op->longName ? op->longName : "";
949 if (!op->longName && !op->shortName) {
950 list_end = op;
951 break;
952 }
953 if (!am_daemon
954 || op->shortName == 'e' /* Required for compatibility flags */
955 || op->shortName == '0' /* --from0 just modifies --files-from, so refuse that instead (or not) */
956 || op->shortName == 's' /* --secluded-args is always OK */
957 || op->shortName == 'n' /* --dry-run is always OK */
958 || strcmp("iconv", longName) == 0
959 || strcmp("no-iconv", longName) == 0
960 || strcmp("checksum-seed", longName) == 0
961 || strcmp("copy-devices", longName) == 0 /* disable wild-match (it gets refused below) */
962 || strcmp("write-devices", longName) == 0 /* disable wild-match (it gets refused below) */
963 || strcmp("log-format", longName) == 0 /* aka out-format (NOT log-file-format) */
964 || strcmp("sender", longName) == 0
965 || strcmp("server", longName) == 0)
966 op->descrip = "a="; /* exact-match only */
967 else
968 op->descrip = "a*"; /* wild-card-able */
969 }
970 assert(list_end != NULL);
971
972 if (am_daemon) { /* Refused by default, but can be accepted via a negated exact match. */
973 parse_one_refuse_match(0, "copy-devices", list_end);
974 parse_one_refuse_match(0, "write-devices", list_end);
975 }
976
977 while (1) {
978 while (*ref == ' ') ref++;
979 if (!*ref)
980 break;
981 if ((cp = strchr(ref, ' ')) != NULL)
982 *cp = '\0';
983 negated = *ref == '!';
984 if (negated && ref[1])
985 ref++;
986 parse_one_refuse_match(negated, ref, list_end);
987 if (!cp)
988 break;
989 *cp = ' ';
990 ref = cp + 1;
991 }
992
993 if (am_daemon) {
994 #ifdef ICONV_OPTION
995 if (!*lp_charset(module_id))
996 parse_one_refuse_match(0, "iconv", list_end);
997 #endif
998 parse_one_refuse_match(0, "log-file*", list_end);
999 }
1000
1001 #ifndef SUPPORT_ATIMES
1002 parse_one_refuse_match(0, "atimes", list_end);
1003 #endif
1004 #ifndef SUPPORT_HARD_LINKS
1005 parse_one_refuse_match(0, "link-dest", list_end);
1006 #endif
1007 #ifndef HAVE_MKTIME
1008 parse_one_refuse_match(0, "stop-at", list_end);
1009 #endif
1010 #ifndef ICONV_OPTION
1011 parse_one_refuse_match(0, "iconv", list_end);
1012 #endif
1013 #ifndef HAVE_SETVBUF
1014 parse_one_refuse_match(0, "outbuf", list_end);
1015 #endif
1016 #ifndef SUPPORT_CRTIMES
1017 parse_one_refuse_match(0, "crtimes", list_end);
1018 #endif
1019
1020 /* Now we use the descrip values to actually mark the options for refusal. */
1021 for (op = long_options; op != list_end; op++) {
1022 int refused = op->descrip[0] == 'r';
1023 op->descrip = NULL;
1024 if (!refused)
1025 continue;
1026 if (op->argInfo == POPT_ARG_VAL)
1027 op->argInfo = POPT_ARG_NONE;
1028 op->val = (op - long_options) + OPT_REFUSED_BASE;
1029 /* The following flags are set to let us easily check an implied option later in the code. */
1030 switch (op->shortName) {
1031 case 'r': case 'd': case 'l': case 'p':
1032 case 't': case 'g': case 'o': case 'D':
1033 refused_archive_part = op->val;
1034 break;
1035 case 'z':
1036 refused_compress = op->val;
1037 break;
1038 case '\0':
1039 if (strcmp("delete", op->longName) == 0)
1040 refused_delete = op->val;
1041 else if (strcmp("delete-before", op->longName) == 0)
1042 refused_delete_before = op->val;
1043 else if (strcmp("delete-during", op->longName) == 0)
1044 refused_delete_during = op->val;
1045 else if (strcmp("partial", op->longName) == 0)
1046 refused_partial = op->val;
1047 else if (strcmp("progress", op->longName) == 0)
1048 refused_progress = op->val;
1049 else if (strcmp("inplace", op->longName) == 0)
1050 refused_inplace = op->val;
1051 else if (strcmp("no-iconv", op->longName) == 0)
1052 refused_no_iconv = op->val;
1053 break;
1054 }
1055 }
1056 }
1057
1058
1059 static int count_args(const char **argv)
1060 {
1061 int i = 0;
1062
1063 if (argv) {
1064 while (argv[i] != NULL)
1065 i++;
1066 }
1067
1068 return i;
1069 }
1070
1071 /* If the size_arg is an invalid string or the value is < min_value, an error
1072 * is put into err_buf & the return is -1. Note that this parser does NOT
1073 * support negative numbers, so a min_value < 0 doesn't make any sense. */
1074 static ssize_t parse_size_arg(const char *size_arg, char def_suf, const char *opt_name,
1075 ssize_t min_value, ssize_t max_value, BOOL unlimited_0)
1076 {
1077 int reps, mult, len;
1078 const char *arg, *err = "invalid", *min_max = NULL;
1079 ssize_t limit = -1, size = 1;
1080
1081 for (arg = size_arg; isDigit(arg); arg++) {}
1082 if (*arg == '.' || *arg == get_decimal_point()) /* backward compatibility: always allow '.' */
1083 for (arg++; isDigit(arg); arg++) {}
1084 switch (*arg && *arg != '+' && *arg != '-' ? *arg++ : def_suf) {
1085 case 'b': case 'B':
1086 reps = 0;
1087 break;
1088 case 'k': case 'K':
1089 reps = 1;
1090 break;
1091 case 'm': case 'M':
1092 reps = 2;
1093 break;
1094 case 'g': case 'G':
1095 reps = 3;
1096 break;
1097 case 't': case 'T':
1098 reps = 4;
1099 break;
1100 case 'p': case 'P':
1101 reps = 5;
1102 break;
1103 default:
1104 goto failure;
1105 }
1106 if (*arg == 'b' || *arg == 'B')
1107 mult = 1000, arg++;
1108 else if (!*arg || *arg == '+' || *arg == '-')
1109 mult = 1024;
1110 else if (strncasecmp(arg, "ib", 2) == 0)
1111 mult = 1024, arg += 2;
1112 else
1113 goto failure;
1114 while (reps--)
1115 size *= mult;
1116 size *= atof(size_arg);
1117 if ((*arg == '+' || *arg == '-') && arg[1] == '1' && arg != size_arg)
1118 size += atoi(arg), arg += 2;
1119 if (*arg)
1120 goto failure;
1121 if (size < 0 || (max_value >= 0 && size > max_value)) {
1122 err = "too large";
1123 min_max = "max";
1124 limit = max_value;
1125 goto failure;
1126 }
1127 if (size < min_value && (!unlimited_0 || size != 0)) {
1128 err = "too small";
1129 min_max = "min";
1130 limit = min_value;
1131 goto failure;
1132 }
1133 return size;
1134
1135 failure:
1136 len = snprintf(err_buf, sizeof err_buf - 1, "--%s=%s is %s", opt_name, size_arg, err);
1137 if (min_max && limit >= 0 && len < (int)sizeof err_buf - 10) {
1138 len += snprintf(err_buf + len, sizeof err_buf - len - 1, " (%s: %s%s)",
1139 min_max, do_big_num(limit, 3, NULL),
1140 unlimited_0 && min_max[1] == 'i' ? " or 0 for unlimited" : "");
1141 }
1142 err_buf[len] = '\n';
1143 err_buf[len+1] = '\0';
1144 return -1;
1145 }
1146
1147 #ifdef HAVE_MKTIME
1148 /* Allow the user to specify a time in the format yyyy-mm-ddThh:mm while
1149 * also allowing abbreviated data. For instance, if the time is omitted,
1150 * it defaults to midnight. If the date is omitted, it defaults to the
1151 * next possible date in the future with the specified time. Even the
1152 * year or year-month can be omitted, again defaulting to the next date
1153 * in the future that matches the specified information. A 2-digit year
1154 * is also OK, as is using '/' instead of '-'. */
1155 static time_t parse_time(const char *arg)
1156 {
1157 const char *cp;
1158 time_t val, now = time(NULL);
1159 struct tm t, *today = localtime(&now);
1160 int in_date, old_mday, n;
1161
1162 memset(&t, 0, sizeof t);
1163 t.tm_year = t.tm_mon = t.tm_mday = -1;
1164 t.tm_hour = t.tm_min = t.tm_isdst = -1;
1165 cp = arg;
1166 if (*cp == 'T' || *cp == 't' || *cp == ':') {
1167 in_date = *cp == ':' ? 0 : -1;
1168 cp++;
1169 } else
1170 in_date = 1;
1171 for ( ; ; cp++) {
1172 if (!isDigit(cp))
1173 return (time_t)-1;
1174 n = 0;
1175 do {
1176 n = n * 10 + *cp++ - '0';
1177 } while (isDigit(cp));
1178 if (*cp == ':')
1179 in_date = 0;
1180 if (in_date > 0) {
1181 if (t.tm_year != -1)
1182 return (time_t)-1;
1183 t.tm_year = t.tm_mon;
1184 t.tm_mon = t.tm_mday;
1185 t.tm_mday = n;
1186 if (!*cp)
1187 break;
1188 if (*cp == 'T' || *cp == 't') {
1189 if (!cp[1])
1190 break;
1191 in_date = -1;
1192 } else if (*cp != '-' && *cp != '/')
1193 return (time_t)-1;
1194 continue;
1195 }
1196 if (t.tm_hour != -1)
1197 return (time_t)-1;
1198 t.tm_hour = t.tm_min;
1199 t.tm_min = n;
1200 if (!*cp) {
1201 if (in_date < 0)
1202 return (time_t)-1;
1203 break;
1204 }
1205 if (*cp != ':')
1206 return (time_t)-1;
1207 in_date = 0;
1208 }
1209
1210 in_date = 0;
1211 if (t.tm_year < 0) {
1212 t.tm_year = today->tm_year;
1213 in_date = 1;
1214 } else if (t.tm_year < 100) {
1215 while (t.tm_year < today->tm_year)
1216 t.tm_year += 100;
1217 } else
1218 t.tm_year -= 1900;
1219 if (t.tm_mon < 0) {
1220 t.tm_mon = today->tm_mon;
1221 in_date = 2;
1222 } else
1223 t.tm_mon--;
1224 if (t.tm_mday < 0) {
1225 t.tm_mday = today->tm_mday;
1226 in_date = 3;
1227 }
1228
1229 n = 0;
1230 if (t.tm_min < 0) {
1231 t.tm_hour = t.tm_min = 0;
1232 } else if (t.tm_hour < 0) {
1233 if (in_date != 3)
1234 return (time_t)-1;
1235 in_date = 0;
1236 t.tm_hour = today->tm_hour;
1237 n = 60*60;
1238 }
1239
1240 /* Note that mktime() might change a too-large tm_mday into the start of
1241 * the following month which we need to undo in the following code! */
1242 old_mday = t.tm_mday;
1243 if (t.tm_hour > 23 || t.tm_min > 59
1244 || t.tm_mon < 0 || t.tm_mon >= 12
1245 || t.tm_mday < 1 || t.tm_mday > 31
1246 || (val = mktime(&t)) == (time_t)-1)
1247 return (time_t)-1;
1248
1249 while (in_date && (val <= now || t.tm_mday < old_mday)) {
1250 switch (in_date) {
1251 case 3:
1252 old_mday = ++t.tm_mday;
1253 break;
1254 case 2:
1255 if (t.tm_mday < old_mday)
1256 t.tm_mday = old_mday; /* The month already got bumped forward */
1257 else if (++t.tm_mon == 12) {
1258 t.tm_mon = 0;
1259 t.tm_year++;
1260 }
1261 break;
1262 case 1:
1263 if (t.tm_mday < old_mday) {
1264 /* mon==1 mday==29 got bumped to mon==2 */
1265 if (t.tm_mon != 2 || old_mday != 29)
1266 return (time_t)-1;
1267 t.tm_mon = 1;
1268 t.tm_mday = 29;
1269 }
1270 t.tm_year++;
1271 break;
1272 }
1273 if ((val = mktime(&t)) == (time_t)-1) {
1274 /* This code shouldn't be needed, as mktime() should auto-round to the next month. */
1275 if (in_date != 3 || t.tm_mday <= 28)
1276 return (time_t)-1;
1277 t.tm_mday = old_mday = 1;
1278 in_date = 2;
1279 }
1280 }
1281 if (n) {
1282 while (val <= now)
1283 val += n;
1284 }
1285 return val;
1286 }
1287 #endif
1288
1289 static void create_refuse_error(int which)
1290 {
1291 const char *msg;
1292 if (am_daemon)
1293 msg = "The server is configured to refuse";
1294 else if (am_server)
1295 msg = "The server does not support";
1296 else
1297 msg = "This rsync does not support";
1298
1299 /* The "which" value is the index + OPT_REFUSED_BASE. */
1300 struct poptOption *op = &long_options[which - OPT_REFUSED_BASE];
1301 int n = snprintf(err_buf, sizeof err_buf, "%s --%s\n", msg, op->longName) - 1;
1302 if (op->shortName)
1303 snprintf(err_buf + n, sizeof err_buf - n, " (-%c)\n", op->shortName);
1304 }
1305
1306 /* This is used to make sure that --daemon & --server cannot be aliased to
1307 * something else. These options have always disabled popt aliases for the
1308 * parsing of a daemon or server command-line, but we have to make sure that
1309 * these options cannot vanish so that the alias disabling can take effect. */
1310 static void popt_unalias(poptContext con, const char *opt)
1311 {
1312 struct poptAlias unalias;
1313
1314 memset(&unalias, 0, sizeof unalias);
1315
1316 unalias.longName = opt + 2; /* point past the leading "--" */
1317 unalias.argc = 1;
1318 unalias.argv = new_array0(const char*, 2);
1319 unalias.argv[0] = strdup(opt);
1320
1321 poptAddAlias(con, unalias, 0);
1322 }
1323
1324 char *alt_dest_opt(int type)
1325 {
1326 if (!type)
1327 type = alt_dest_type;
1328
1329 switch (type) {
1330 case COMPARE_DEST:
1331 return "--compare-dest";
1332 case COPY_DEST:
1333 return "--copy-dest";
1334 case LINK_DEST:
1335 return "--link-dest";
1336 default:
1337 NOISY_DEATH("Unknown alt_dest_opt type");
1338 }
1339 }
1340
1341 /**
1342 * Process command line arguments. Called on both local and remote.
1343 *
1344 * @retval 1 if all options are OK; with globals set to appropriate
1345 * values
1346 *
1347 * @retval 0 on error, with err_buf containing an explanation
1348 **/
1349 int parse_arguments(int *argc_p, const char ***argv_p)
1350 {
1351 poptContext pc;
1352 const char *arg, **argv = *argv_p;
1353 int argc = *argc_p;
1354 int opt, want_dest_type;
1355 int orig_protect_args = protect_args;
1356
1357 if (argc == 0) {
1358 strlcpy(err_buf, "argc is zero!\n", sizeof err_buf);
1359 return 0;
1360 }
1361
1362 set_refuse_options();
1363
1364 #ifdef ICONV_OPTION
1365 if (!am_daemon && protect_args <= 0 && (arg = getenv("RSYNC_ICONV")) != NULL && *arg)
1366 iconv_opt = strdup(arg);
1367 #endif
1368
1369 /* TODO: Call poptReadDefaultConfig; handle errors. */
1370
1371 pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
1372 if (!am_server) {
1373 poptReadDefaultConfig(pc, 0);
1374 popt_unalias(pc, "--daemon");
1375 popt_unalias(pc, "--server");
1376 }
1377
1378 while ((opt = poptGetNextOpt(pc)) != -1) {
1379 /* most options are handled automatically by popt;
1380 * only special cases are returned and listed here. */
1381
1382 switch (opt) {
1383 case 'V':
1384 version_opt_cnt++;
1385 break;
1386
1387 case OPT_SERVER:
1388 if (!am_server) {
1389 /* Disable popt aliases on the server side and
1390 * then start parsing the options again. */
1391 poptFreeContext(pc);
1392 pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
1393 am_server = 1;
1394 }
1395 #ifdef ICONV_OPTION
1396 iconv_opt = NULL;
1397 #endif
1398 break;
1399
1400 case OPT_SENDER:
1401 if (!am_server) {
1402 usage(FERROR);
1403 exit_cleanup(RERR_SYNTAX);
1404 }
1405 am_sender = 1;
1406 break;
1407
1408 case OPT_DAEMON:
1409 if (am_daemon) {
1410 strlcpy(err_buf,
1411 "Attempt to hack rsync thwarted!\n",
1412 sizeof err_buf);
1413 goto cleanup;
1414 }
1415 #ifdef ICONV_OPTION
1416 iconv_opt = NULL;
1417 #endif
1418 protect_args = 0;
1419 poptFreeContext(pc);
1420 pc = poptGetContext(RSYNC_NAME, argc, argv, long_daemon_options, 0);
1421 while ((opt = poptGetNextOpt(pc)) != -1) {
1422 char **cpp;
1423 switch (opt) {
1424 case 'h':
1425 daemon_usage(FINFO);
1426 exit_cleanup(0);
1427
1428 case 'M':
1429 arg = poptGetOptArg(pc);
1430 if (!strchr(arg, '=')) {
1431 rprintf(FERROR,
1432 "--dparam value is missing an '=': %s\n",
1433 arg);
1434 goto daemon_error;
1435 }
1436 cpp = EXPAND_ITEM_LIST(&dparam_list, char *, 4);
1437 *cpp = strdup(arg);
1438 break;
1439
1440 case 'v':
1441 verbose++;
1442 break;
1443
1444 default:
1445 rprintf(FERROR,
1446 "rsync: %s: %s (in daemon mode)\n",
1447 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1448 poptStrerror(opt));
1449 goto daemon_error;
1450 }
1451 }
1452
1453 if (dparam_list.count && !set_dparams(1))
1454 exit_cleanup(RERR_SYNTAX);
1455
1456 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
1457 snprintf(err_buf, sizeof err_buf,
1458 "the --temp-dir path is WAY too long.\n");
1459 goto cleanup;
1460 }
1461
1462 if (!daemon_opt) {
1463 rprintf(FERROR, "Daemon option(s) used without --daemon.\n");
1464 daemon_error:
1465 rprintf(FERROR, "(Type \"rsync --daemon --help\" for assistance with daemon mode.)\n");
1466 exit_cleanup(RERR_SYNTAX);
1467 }
1468
1469 argv = poptGetArgs(pc);
1470 argc = count_args(argv);
1471 if (!argc) {
1472 *argv_p = empty_argv;
1473 *argc_p = 0;
1474 } else if (poptDupArgv(argc, argv, argc_p, argv_p) != 0)
1475 out_of_memory("parse_arguments");
1476 argv = *argv_p;
1477 poptFreeContext(pc);
1478
1479 am_starting_up = 0;
1480 daemon_opt = 0;
1481 am_daemon = 1;
1482 return 1;
1483
1484 case OPT_MODIFY_WINDOW:
1485 /* The value has already been set by popt, but
1486 * we need to remember that we're using a
1487 * non-default setting. */
1488 modify_window_set = 1;
1489 break;
1490
1491 case OPT_FILTER:
1492 parse_filter_str(&filter_list, poptGetOptArg(pc),
1493 rule_template(0), 0);
1494 break;
1495
1496 case OPT_EXCLUDE:
1497 parse_filter_str(&filter_list, poptGetOptArg(pc),
1498 rule_template(0), XFLG_OLD_PREFIXES);
1499 break;
1500
1501 case OPT_INCLUDE:
1502 parse_filter_str(&filter_list, poptGetOptArg(pc),
1503 rule_template(FILTRULE_INCLUDE), XFLG_OLD_PREFIXES);
1504 break;
1505
1506 case OPT_EXCLUDE_FROM:
1507 case OPT_INCLUDE_FROM:
1508 arg = poptGetOptArg(pc);
1509 if (sanitize_paths)
1510 arg = sanitize_path(NULL, arg, NULL, 0, SP_DEFAULT);
1511 if (daemon_filter_list.head) {
1512 int rej;
1513 char *cp = strdup(arg);
1514 if (!*cp)
1515 rej = 1;
1516 else {
1517 char *dir = cp + (*cp == '/' ? module_dirlen : 0);
1518 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
1519 rej = check_filter(&daemon_filter_list, FLOG, dir, 0) < 0;
1520 }
1521 free(cp);
1522 if (rej)
1523 goto options_rejected;
1524 }
1525 parse_filter_file(&filter_list, arg,
1526 rule_template(opt == OPT_INCLUDE_FROM ? FILTRULE_INCLUDE : 0),
1527 XFLG_FATAL_ERRORS | XFLG_OLD_PREFIXES);
1528 break;
1529
1530 case 'a':
1531 if (refused_archive_part) {
1532 create_refuse_error(refused_archive_part);
1533 goto cleanup;
1534 }
1535 if (!recurse) /* preserve recurse == 2 */
1536 recurse = 1;
1537 #ifdef SUPPORT_LINKS
1538 preserve_links = 1;
1539 #endif
1540 preserve_perms = 1;
1541 preserve_mtimes = 1;
1542 preserve_gid = 1;
1543 preserve_uid = 1;
1544 preserve_devices = 1;
1545 preserve_specials = 1;
1546 break;
1547
1548 case 'D':
1549 preserve_devices = preserve_specials = 1;
1550 break;
1551
1552 case OPT_NO_D:
1553 preserve_devices = preserve_specials = 0;
1554 break;
1555
1556 case 'h':
1557 human_readable++;
1558 break;
1559
1560 case 'H':
1561 preserve_hard_links++;
1562 break;
1563
1564 case 'i':
1565 itemize_changes++;
1566 break;
1567
1568 case 'U':
1569 if (++preserve_atimes > 1)
1570 open_noatime = 1;
1571 break;
1572
1573 case 'v':
1574 verbose++;
1575 break;
1576
1577 case 'y':
1578 fuzzy_basis++;
1579 break;
1580
1581 case 'q':
1582 quiet++;
1583 break;
1584
1585 case 'x':
1586 one_file_system++;
1587 break;
1588
1589 case 'F':
1590 switch (++F_option_cnt) {
1591 case 1:
1592 parse_filter_str(&filter_list,": /.rsync-filter",rule_template(0),0);
1593 break;
1594 case 2:
1595 parse_filter_str(&filter_list,"- .rsync-filter",rule_template(0),0);
1596 break;
1597 }
1598 break;
1599
1600 case 'P':
1601 if (refused_partial || refused_progress) {
1602 create_refuse_error(refused_partial ? refused_partial : refused_progress);
1603 goto cleanup;
1604 }
1605 do_progress = 1;
1606 keep_partial = 1;
1607 break;
1608
1609 case 'z':
1610 do_compression++;
1611 break;
1612
1613 case OPT_OLD_COMPRESS:
1614 compress_choice = "zlib";
1615 break;
1616
1617 case OPT_NEW_COMPRESS:
1618 compress_choice = "zlibx";
1619 break;
1620
1621 case OPT_NO_COMPRESS:
1622 do_compression = 0;
1623 compress_choice = NULL;
1624 break;
1625
1626 case OPT_OLD_ARGS:
1627 if (old_style_args <= 0)
1628 old_style_args = 1;
1629 else
1630 old_style_args++;
1631 break;
1632
1633 case 'M':
1634 arg = poptGetOptArg(pc);
1635 if (*arg != '-') {
1636 snprintf(err_buf, sizeof err_buf,
1637 "Remote option must start with a dash: %s\n", arg);
1638 goto cleanup;
1639 }
1640 if (remote_option_cnt+2 >= remote_option_alloc) {
1641 remote_option_alloc += 16;
1642 remote_options = realloc_array(remote_options,
1643 const char *, remote_option_alloc);
1644 if (!remote_option_cnt)
1645 remote_options[0] = "ARG0";
1646 }
1647 remote_options[++remote_option_cnt] = arg;
1648 remote_options[remote_option_cnt+1] = NULL;
1649 break;
1650
1651 case OPT_WRITE_BATCH:
1652 /* batch_name is already set */
1653 write_batch = 1;
1654 break;
1655
1656 case OPT_ONLY_WRITE_BATCH:
1657 /* batch_name is already set */
1658 write_batch = -1;
1659 break;
1660
1661 case OPT_READ_BATCH:
1662 /* batch_name is already set */
1663 read_batch = 1;
1664 break;
1665
1666 case OPT_NO_ICONV:
1667 #ifdef ICONV_OPTION
1668 iconv_opt = NULL;
1669 #endif
1670 break;
1671
1672 case OPT_BLOCK_SIZE: {
1673 /* We may not know the real protocol_version at this point if this is the client
1674 * option parsing, but we still want to check it so that the client can specify
1675 * a --protocol=29 option with a larger block size. */
1676 int max_blength = protocol_version < 30 ? OLD_MAX_BLOCK_SIZE : MAX_BLOCK_SIZE;
1677 ssize_t size;
1678 arg = poptGetOptArg(pc);
1679 if ((size = parse_size_arg(arg, 'b', "block-size", 0, max_blength, False)) < 0)
1680 goto cleanup;
1681 block_size = (int32)size;
1682 break;
1683 }
1684
1685 case OPT_MAX_SIZE:
1686 if ((max_size = parse_size_arg(max_size_arg, 'b', "max-size", 0, -1, False)) < 0)
1687 goto cleanup;
1688 max_size_arg = strdup(do_big_num(max_size, 0, NULL));
1689 break;
1690
1691 case OPT_MIN_SIZE:
1692 if ((min_size = parse_size_arg(min_size_arg, 'b', "min-size", 0, -1, False)) < 0)
1693 goto cleanup;
1694 min_size_arg = strdup(do_big_num(min_size, 0, NULL));
1695 break;
1696
1697 case OPT_BWLIMIT: {
1698 ssize_t size = parse_size_arg(bwlimit_arg, 'K', "bwlimit", 512, -1, True);
1699 if (size < 0)
1700 goto cleanup;
1701 bwlimit_arg = strdup(do_big_num(size, 0, NULL));
1702 bwlimit = (size + 512) / 1024;
1703 break;
1704 }
1705
1706 case OPT_APPEND:
1707 if (am_server)
1708 append_mode++;
1709 else
1710 append_mode = 1;
1711 break;
1712
1713 case OPT_LINK_DEST:
1714 want_dest_type = LINK_DEST;
1715 goto set_dest_dir;
1716
1717 case OPT_COPY_DEST:
1718 want_dest_type = COPY_DEST;
1719 goto set_dest_dir;
1720
1721 case OPT_COMPARE_DEST:
1722 want_dest_type = COMPARE_DEST;
1723
1724 set_dest_dir:
1725 if (alt_dest_type && alt_dest_type != want_dest_type) {
1726 snprintf(err_buf, sizeof err_buf,
1727 "ERROR: the %s option conflicts with the %s option\n",
1728 alt_dest_opt(want_dest_type), alt_dest_opt(0));
1729 goto cleanup;
1730 }
1731 alt_dest_type = want_dest_type;
1732
1733 if (basis_dir_cnt >= MAX_BASIS_DIRS) {
1734 snprintf(err_buf, sizeof err_buf,
1735 "ERROR: at most %d %s args may be specified\n",
1736 MAX_BASIS_DIRS, alt_dest_opt(0));
1737 goto cleanup;
1738 }
1739 /* We defer sanitizing this arg until we know what
1740 * our destination directory is going to be. */
1741 basis_dir[basis_dir_cnt++] = (char *)poptGetOptArg(pc);
1742 break;
1743
1744 case OPT_CHMOD:
1745 arg = poptGetOptArg(pc);
1746 if (!parse_chmod(arg, &chmod_modes)) {
1747 snprintf(err_buf, sizeof err_buf,
1748 "Invalid argument passed to --chmod (%s)\n",
1749 arg);
1750 goto cleanup;
1751 }
1752 break;
1753
1754 case OPT_INFO:
1755 arg = poptGetOptArg(pc);
1756 parse_output_words(info_words, info_levels, arg, USER_PRIORITY);
1757 break;
1758
1759 case OPT_DEBUG:
1760 arg = poptGetOptArg(pc);
1761 parse_output_words(debug_words, debug_levels, arg, USER_PRIORITY);
1762 break;
1763
1764 case OPT_USERMAP:
1765 if (usermap) {
1766 if (usermap_via_chown) {
1767 snprintf(err_buf, sizeof err_buf,
1768 "--usermap conflicts with prior --chown.\n");
1769 goto cleanup;
1770 }
1771 snprintf(err_buf, sizeof err_buf,
1772 "You can only specify --usermap once.\n");
1773 goto cleanup;
1774 }
1775 usermap = (char *)poptGetOptArg(pc);
1776 usermap_via_chown = False;
1777 preserve_uid = 1;
1778 break;
1779
1780 case OPT_GROUPMAP:
1781 if (groupmap) {
1782 if (groupmap_via_chown) {
1783 snprintf(err_buf, sizeof err_buf,
1784 "--groupmap conflicts with prior --chown.\n");
1785 goto cleanup;
1786 }
1787 snprintf(err_buf, sizeof err_buf,
1788 "You can only specify --groupmap once.\n");
1789 goto cleanup;
1790 }
1791 groupmap = (char *)poptGetOptArg(pc);
1792 groupmap_via_chown = False;
1793 preserve_gid = 1;
1794 break;
1795
1796 case OPT_CHOWN: {
1797 const char *chown = poptGetOptArg(pc);
1798 int len;
1799 if ((arg = strchr(chown, ':')) != NULL)
1800 len = arg++ - chown;
1801 else
1802 len = strlen(chown);
1803 if (len) {
1804 if (usermap) {
1805 if (!usermap_via_chown) {
1806 snprintf(err_buf, sizeof err_buf,
1807 "--chown conflicts with prior --usermap.\n");
1808 goto cleanup;
1809 }
1810 snprintf(err_buf, sizeof err_buf,
1811 "You can only specify a user-affecting --chown once.\n");
1812 goto cleanup;
1813 }
1814 if (asprintf(&usermap, "*:%.*s", len, chown) < 0)
1815 out_of_memory("parse_arguments");
1816 usermap_via_chown = True;
1817 preserve_uid = 1;
1818 }
1819 if (arg && *arg) {
1820 if (groupmap) {
1821 if (!groupmap_via_chown) {
1822 snprintf(err_buf, sizeof err_buf,
1823 "--chown conflicts with prior --groupmap.\n");
1824 goto cleanup;
1825 }
1826 snprintf(err_buf, sizeof err_buf,
1827 "You can only specify a group-affecting --chown once.\n");
1828 goto cleanup;
1829 }
1830 if (asprintf(&groupmap, "*:%s", arg) < 0)
1831 out_of_memory("parse_arguments");
1832 groupmap_via_chown = True;
1833 preserve_gid = 1;
1834 }
1835 break;
1836 }
1837
1838 case OPT_HELP:
1839 usage(FINFO);
1840 exit_cleanup(0);
1841
1842 case 'A':
1843 #ifdef SUPPORT_ACLS
1844 preserve_acls = 1;
1845 preserve_perms = 1;
1846 break;
1847 #else
1848 /* FIXME: this should probably be ignored with a
1849 * warning and then countermeasures taken to
1850 * restrict group and other access in the presence
1851 * of any more restrictive ACLs, but this is safe
1852 * for now */
1853 snprintf(err_buf,sizeof(err_buf),
1854 "ACLs are not supported on this %s\n",
1855 am_server ? "server" : "client");
1856 goto cleanup;
1857 #endif
1858
1859 case 'X':
1860 #ifdef SUPPORT_XATTRS
1861 preserve_xattrs++;
1862 break;
1863 #else
1864 snprintf(err_buf,sizeof(err_buf),
1865 "extended attributes are not supported on this %s\n",
1866 am_server ? "server" : "client");
1867 goto cleanup;
1868 #endif
1869
1870 case OPT_STOP_AFTER: {
1871 long val;
1872 arg = poptGetOptArg(pc);
1873 stop_at_utime = time(NULL);
1874 if ((val = atol(arg) * 60) <= 0 || LONG_MAX - val < stop_at_utime || (long)(time_t)val != val) {
1875 snprintf(err_buf, sizeof err_buf, "invalid --stop-after value: %s\n", arg);
1876 goto cleanup;
1877 }
1878 stop_at_utime += val;
1879 break;
1880 }
1881
1882 #ifdef HAVE_MKTIME
1883 case OPT_STOP_AT:
1884 arg = poptGetOptArg(pc);
1885 if ((stop_at_utime = parse_time(arg)) == (time_t)-1) {
1886 snprintf(err_buf, sizeof err_buf, "invalid --stop-at format: %s\n", arg);
1887 goto cleanup;
1888 }
1889 if (stop_at_utime <= time(NULL)) {
1890 snprintf(err_buf, sizeof err_buf, "--stop-at time is not in the future: %s\n", arg);
1891 goto cleanup;
1892 }
1893 break;
1894 #endif
1895
1896 case OPT_STDERR: {
1897 int len;
1898 arg = poptGetOptArg(pc);
1899 len = strlen(arg);
1900 if (len && strncmp("errors", arg, len) == 0)
1901 msgs2stderr = 2;
1902 else if (len && strncmp("all", arg, len) == 0)
1903 msgs2stderr = 1;
1904 else if (len && strncmp("client", arg, len) == 0)
1905 msgs2stderr = 0;
1906 else {
1907 snprintf(err_buf, sizeof err_buf,
1908 "--stderr mode \"%s\" is not one of errors, all, or client\n", arg);
1909 goto cleanup;
1910 }
1911 saw_stderr_opt = 1;
1912 break;
1913 }
1914
1915 default:
1916 /* A large opt value means that set_refuse_options()
1917 * turned this option off. */
1918 if (opt >= OPT_REFUSED_BASE) {
1919 create_refuse_error(opt);
1920 goto cleanup;
1921 }
1922 snprintf(err_buf, sizeof err_buf, "%s%s: %s\n",
1923 am_server ? "on remote machine: " : "",
1924 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1925 poptStrerror(opt));
1926 goto cleanup;
1927 }
1928 }
1929
1930 if (msgs2stderr != 2)
1931 saw_stderr_opt = 1;
1932
1933 if (version_opt_cnt) {
1934 print_rsync_version(version_opt_cnt > 1 && !am_server ? FNONE : FINFO);
1935 exit_cleanup(0);
1936 }
1937
1938 if (!max_alloc_arg) {
1939 max_alloc_arg = getenv("RSYNC_MAX_ALLOC");
1940 if (max_alloc_arg && !*max_alloc_arg)
1941 max_alloc_arg = NULL;
1942 }
1943 if (max_alloc_arg) {
1944 ssize_t size = parse_size_arg(max_alloc_arg, 'B', "max-alloc", 1024*1024, -1, True);
1945 if (size < 0)
1946 goto cleanup;
1947 max_alloc = size;
1948 }
1949 if (!max_alloc)
1950 max_alloc = SIZE_MAX;
1951
1952 if (old_style_args < 0) {
1953 if (!am_server && protect_args <= 0 && (arg = getenv("RSYNC_OLD_ARGS")) != NULL && *arg) {
1954 protect_args = 0;
1955 old_style_args = atoi(arg);
1956 } else
1957 old_style_args = 0;
1958 } else if (old_style_args) {
1959 if (protect_args > 0) {
1960 snprintf(err_buf, sizeof err_buf,
1961 "--secluded-args conflicts with --old-args.\n");
1962 goto cleanup;
1963 }
1964 protect_args = 0;
1965 }
1966
1967 if (protect_args < 0) {
1968 if (am_server)
1969 protect_args = 0;
1970 else if ((arg = getenv("RSYNC_PROTECT_ARGS")) != NULL && *arg)
1971 protect_args = atoi(arg) ? 1 : 0;
1972 else {
1973 #ifdef RSYNC_USE_SECLUDED_ARGS
1974 protect_args = 1;
1975 #else
1976 protect_args = 0;
1977 #endif
1978 }
1979 }
1980
1981 if (checksum_choice && strcasecmp(checksum_choice, "auto") != 0 && strcasecmp(checksum_choice, "auto,auto") != 0) {
1982 /* Call this early to verify the args and figure out if we need to force
1983 * --whole-file. Note that the parse function will get called again later,
1984 * just in case an "auto" choice needs to know the protocol_version. */
1985 parse_checksum_choice(0);
1986 } else
1987 checksum_choice = NULL;
1988
1989 if (human_readable > 1 && argc == 2 && !am_server) {
1990 /* Allow the old meaning of 'h' (--help) on its own. */
1991 usage(FINFO);
1992 exit_cleanup(0);
1993 }
1994
1995 if (!compress_choice && do_compression > 1)
1996 compress_choice = "zlibx";
1997 if (compress_choice && strcasecmp(compress_choice, "auto") != 0)
1998 parse_compress_choice(0); /* Twiddles do_compression and can possibly NULL-out compress_choice. */
1999 else
2000 compress_choice = NULL;
2001
2002 if (do_compression || do_compression_level != CLVL_NOT_SPECIFIED) {
2003 if (!do_compression)
2004 do_compression = CPRES_AUTO;
2005 if (do_compression && refused_compress) {
2006 create_refuse_error(refused_compress);
2007 goto cleanup;
2008 }
2009 }
2010
2011 #ifdef HAVE_SETVBUF
2012 if (outbuf_mode && !am_server) {
2013 int mode = *(uchar *)outbuf_mode;
2014 if (islower(mode))
2015 mode = toupper(mode);
2016 fflush(stdout); /* Just in case... */
2017 switch (mode) {
2018 case 'N': /* None */
2019 case 'U': /* Unbuffered */
2020 mode = _IONBF;
2021 break;
2022 case 'L': /* Line */
2023 mode = _IOLBF;
2024 break;
2025 case 'B': /* Block */
2026 case 'F': /* Full */
2027 mode = _IOFBF;
2028 break;
2029 default:
2030 snprintf(err_buf, sizeof err_buf,
2031 "Invalid --outbuf setting -- specify N, L, or B.\n");
2032 goto cleanup;
2033 }
2034 setvbuf(stdout, (char *)NULL, mode, 0);
2035 }
2036
2037 if (msgs2stderr == 1) { /* Are all messages going to stderr? */
2038 /* Make stderr line buffered for better sharing of the stream. */
2039 fflush(stderr); /* Just in case... */
2040 setvbuf(stderr, (char *)NULL, _IOLBF, 0);
2041 }
2042 #endif
2043
2044 set_output_verbosity(verbose, DEFAULT_PRIORITY);
2045
2046 if (do_stats) {
2047 parse_output_words(info_words, info_levels,
2048 verbose > 1 ? "stats3" : "stats2", DEFAULT_PRIORITY);
2049 }
2050
2051 #ifdef ICONV_OPTION
2052 if (iconv_opt && protect_args != 2) {
2053 if (!am_server && strcmp(iconv_opt, "-") == 0)
2054 iconv_opt = NULL;
2055 else
2056 need_unsorted_flist = 1;
2057 }
2058 if (refused_no_iconv && !iconv_opt) {
2059 create_refuse_error(refused_no_iconv);
2060 goto cleanup;
2061 }
2062 #endif
2063
2064 if (fuzzy_basis > 1)
2065 fuzzy_basis = basis_dir_cnt + 1;
2066
2067 /* Don't let the client reset protect_args if it was already processed */
2068 if (orig_protect_args == 2 && am_server)
2069 protect_args = orig_protect_args;
2070
2071 if (protect_args == 1 && am_server) {
2072 poptFreeContext(pc);
2073 return 1;
2074 }
2075
2076 /* Because popt 1.19 has started to free the returned args data, we now
2077 * make a copy of the array and then do an immediate cleanup. */
2078 argv = poptGetArgs(pc);
2079 argc = count_args(argv);
2080 if (!argc) {
2081 *argv_p = empty_argv;
2082 *argc_p = 0;
2083 } else if (poptDupArgv(argc, argv, argc_p, argv_p) != 0)
2084 out_of_memory("parse_arguments");
2085 argv = *argv_p;
2086 poptFreeContext(pc);
2087 pc = NULL;
2088
2089 #ifndef SUPPORT_LINKS
2090 if (preserve_links && !am_sender) {
2091 snprintf(err_buf, sizeof err_buf,
2092 "symlinks are not supported on this %s\n",
2093 am_server ? "server" : "client");
2094 goto cleanup;
2095 }
2096 #endif
2097
2098 #ifndef SUPPORT_HARD_LINKS
2099 if (preserve_hard_links) {
2100 snprintf(err_buf, sizeof err_buf,
2101 "hard links are not supported on this %s\n",
2102 am_server ? "server" : "client");
2103 goto cleanup;
2104 }
2105 #endif
2106
2107 #ifdef SUPPORT_XATTRS
2108 if (am_root < 0 && preserve_xattrs > 1) {
2109 snprintf(err_buf, sizeof err_buf,
2110 "--fake-super conflicts with -XX\n");
2111 goto cleanup;
2112 }
2113 #else
2114 if (am_root < 0) {
2115 snprintf(err_buf, sizeof err_buf,
2116 "--fake-super requires an rsync with extended attributes enabled\n");
2117 goto cleanup;
2118 }
2119 #endif
2120
2121 if (write_batch && read_batch) {
2122 snprintf(err_buf, sizeof err_buf,
2123 "--write-batch and --read-batch can not be used together\n");
2124 goto cleanup;
2125 }
2126 if (write_batch > 0 || read_batch) {
2127 if (am_server) {
2128 rprintf(FINFO,
2129 "ignoring --%s-batch option sent to server\n",
2130 write_batch ? "write" : "read");
2131 /* We don't actually exit_cleanup(), so that we can
2132 * still service older version clients that still send
2133 * batch args to server. */
2134 read_batch = write_batch = 0;
2135 batch_name = NULL;
2136 } else if (dry_run)
2137 write_batch = 0;
2138 } else if (write_batch < 0 && dry_run)
2139 write_batch = 0;
2140 if (read_batch && files_from) {
2141 snprintf(err_buf, sizeof err_buf,
2142 "--read-batch cannot be used with --files-from\n");
2143 goto cleanup;
2144 }
2145 if (read_batch && remove_source_files) {
2146 snprintf(err_buf, sizeof err_buf,
2147 "--read-batch cannot be used with --remove-%s-files\n",
2148 remove_source_files == 1 ? "source" : "sent");
2149 goto cleanup;
2150 }
2151 if (batch_name && strlen(batch_name) > MAX_BATCH_NAME_LEN) {
2152 snprintf(err_buf, sizeof err_buf,
2153 "the batch-file name must be %d characters or less.\n",
2154 MAX_BATCH_NAME_LEN);
2155 goto cleanup;
2156 }
2157
2158 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
2159 snprintf(err_buf, sizeof err_buf,
2160 "the --temp-dir path is WAY too long.\n");
2161 goto cleanup;
2162 }
2163
2164 if (max_delete < 0 && max_delete != INT_MIN) {
2165 /* Negative numbers are treated as "no deletions". */
2166 max_delete = 0;
2167 }
2168
2169 if (files_from) {
2170 if (recurse == 1) /* preserve recurse == 2 */
2171 recurse = 0;
2172 if (xfer_dirs < 0)
2173 xfer_dirs = 1;
2174 }
2175
2176 if (argc < 2 && !read_batch && !am_server)
2177 list_only |= 1;
2178
2179 if (xfer_dirs >= 4) {
2180 parse_filter_str(&filter_list, "- /*/*", rule_template(0), 0);
2181 recurse = xfer_dirs = 1;
2182 } else if (recurse)
2183 xfer_dirs = 1;
2184 else if (xfer_dirs < 0)
2185 xfer_dirs = list_only ? 1 : 0;
2186
2187 if (relative_paths < 0)
2188 relative_paths = files_from? 1 : 0;
2189 if (!relative_paths)
2190 implied_dirs = 0;
2191
2192 if (delete_before + !!delete_during + delete_after > 1) {
2193 snprintf(err_buf, sizeof err_buf,
2194 "You may not combine multiple --delete-WHEN options.\n");
2195 goto cleanup;
2196 }
2197 if (delete_before || delete_during || delete_after)
2198 delete_mode = 1;
2199 else if (delete_mode || delete_excluded) {
2200 /* Only choose now between before & during if one is refused. */
2201 if (refused_delete_before) {
2202 if (!refused_delete_during)
2203 delete_during = 1;
2204 else {
2205 create_refuse_error(refused_delete_before);
2206 goto cleanup;
2207 }
2208 } else if (refused_delete_during)
2209 delete_before = 1;
2210 delete_mode = 1;
2211 }
2212 if (!xfer_dirs && delete_mode) {
2213 snprintf(err_buf, sizeof err_buf,
2214 "--delete does not work without --recursive (-r) or --dirs (-d).\n");
2215 goto cleanup;
2216 }
2217
2218 if (missing_args == 3) /* simplify if both options were specified */
2219 missing_args = 2;
2220 if (refused_delete && (delete_mode || missing_args == 2)) {
2221 create_refuse_error(refused_delete);
2222 goto cleanup;
2223 }
2224
2225 if (remove_source_files) {
2226 /* We only want to infer this refusal of --remove-source-files
2227 * via the refusal of "delete", not any of the "delete-FOO"
2228 * options. */
2229 if (refused_delete && am_sender) {
2230 create_refuse_error(refused_delete);
2231 goto cleanup;
2232 }
2233 need_messages_from_generator = 1;
2234 }
2235
2236 if (munge_symlinks && !am_daemon) {
2237 STRUCT_STAT st;
2238 char prefix[SYMLINK_PREFIX_LEN]; /* NOT +1 ! */
2239 strlcpy(prefix, SYMLINK_PREFIX, sizeof prefix); /* trim the trailing slash */
2240 if (do_stat(prefix, &st) == 0 && S_ISDIR(st.st_mode)) {
2241 rprintf(FERROR, "Symlink munging is unsafe when a %s directory exists.\n",
2242 prefix);
2243 exit_cleanup(RERR_UNSUPPORTED);
2244 }
2245 }
2246
2247 if (sanitize_paths) {
2248 int i;
2249 for (i = argc; i-- > 0; )
2250 argv[i] = sanitize_path(NULL, argv[i], "", 0, SP_KEEP_DOT_DIRS);
2251 if (tmpdir)
2252 tmpdir = sanitize_path(NULL, tmpdir, NULL, 0, SP_DEFAULT);
2253 if (backup_dir)
2254 backup_dir = sanitize_path(NULL, backup_dir, NULL, 0, SP_DEFAULT);
2255 }
2256 if (daemon_filter_list.head && !am_sender) {
2257 filter_rule_list *elp = &daemon_filter_list;
2258 if (tmpdir) {
2259 char *dir;
2260 if (!*tmpdir)
2261 goto options_rejected;
2262 dir = tmpdir + (*tmpdir == '/' ? module_dirlen : 0);
2263 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2264 if (check_filter(elp, FLOG, dir, 1) < 0)
2265 goto options_rejected;
2266 }
2267 if (backup_dir) {
2268 char *dir;
2269 if (!*backup_dir)
2270 goto options_rejected;
2271 dir = backup_dir + (*backup_dir == '/' ? module_dirlen : 0);
2272 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2273 if (check_filter(elp, FLOG, dir, 1) < 0)
2274 goto options_rejected;
2275 }
2276 }
2277
2278 if (!backup_suffix)
2279 backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
2280 backup_suffix_len = strlen(backup_suffix);
2281 if (strchr(backup_suffix, '/') != NULL) {
2282 snprintf(err_buf, sizeof err_buf,
2283 "--suffix cannot contain slashes: %s\n",
2284 backup_suffix);
2285 goto cleanup;
2286 }
2287 if (backup_dir) {
2288 size_t len;
2289 make_backups = 1; /* --backup-dir implies --backup */
2290 while (*backup_dir == '.' && backup_dir[1] == '/')
2291 backup_dir += 2;
2292 if (*backup_dir == '.' && backup_dir[1] == '\0')
2293 backup_dir++;
2294 len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
2295 if (len > sizeof backup_dir_buf - 128) {
2296 snprintf(err_buf, sizeof err_buf,
2297 "the --backup-dir path is WAY too long.\n");
2298 goto cleanup;
2299 }
2300 backup_dir_len = (int)len;
2301 if (!backup_dir_len) {
2302 backup_dir_len = -1;
2303 backup_dir = NULL;
2304 } else if (backup_dir_buf[backup_dir_len - 1] != '/') {
2305 backup_dir_buf[backup_dir_len++] = '/';
2306 backup_dir_buf[backup_dir_len] = '\0';
2307 }
2308 backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
2309 }
2310 if (backup_dir) {
2311 /* No need for a suffix or a protect rule. */
2312 } else if (!backup_suffix_len && (!am_server || !am_sender)) {
2313 snprintf(err_buf, sizeof err_buf,
2314 "--suffix cannot be empty %s\n", backup_dir_len < 0
2315 ? "when --backup-dir is the same as the dest dir"
2316 : "without a --backup-dir");
2317 goto cleanup;
2318 } else if (make_backups && delete_mode && !delete_excluded && !am_server) {
2319 snprintf(backup_dir_buf, sizeof backup_dir_buf,
2320 "P *%s", backup_suffix);
2321 parse_filter_str(&filter_list, backup_dir_buf, rule_template(0), 0);
2322 }
2323
2324 if (make_backups && !backup_dir)
2325 omit_dir_times = -1; /* Implied, so avoid -O to sender. */
2326
2327 if (stdout_format) {
2328 if (am_server && log_format_has(stdout_format, 'I'))
2329 stdout_format_has_i = 2;
2330 else if (log_format_has(stdout_format, 'i'))
2331 stdout_format_has_i = itemize_changes | 1;
2332 if (!log_format_has(stdout_format, 'b')
2333 && !log_format_has(stdout_format, 'c')
2334 && !log_format_has(stdout_format, 'C'))
2335 log_before_transfer = !am_server;
2336 } else if (itemize_changes) {
2337 stdout_format = "%i %n%L";
2338 stdout_format_has_i = itemize_changes;
2339 log_before_transfer = !am_server;
2340 }
2341
2342 if (do_progress && !am_server) {
2343 if (!log_before_transfer && INFO_EQ(NAME, 0))
2344 parse_output_words(info_words, info_levels, "name", DEFAULT_PRIORITY);
2345 parse_output_words(info_words, info_levels, "FLIST2,PROGRESS", DEFAULT_PRIORITY);
2346 }
2347
2348 if (dry_run)
2349 do_xfers = 0;
2350
2351 set_io_timeout(io_timeout);
2352
2353 if (INFO_GTE(NAME, 1) && !stdout_format) {
2354 stdout_format = "%n%L";
2355 log_before_transfer = !am_server;
2356 }
2357 if (stdout_format_has_i || log_format_has(stdout_format, 'o'))
2358 stdout_format_has_o_or_i = 1;
2359
2360 if (logfile_name && !am_daemon) {
2361 if (!logfile_format) {
2362 logfile_format = "%i %n%L";
2363 logfile_format_has_i = logfile_format_has_o_or_i = 1;
2364 } else {
2365 if (log_format_has(logfile_format, 'i'))
2366 logfile_format_has_i = 1;
2367 if (logfile_format_has_i || log_format_has(logfile_format, 'o'))
2368 logfile_format_has_o_or_i = 1;
2369 }
2370 log_init(0);
2371 } else if (!am_daemon)
2372 logfile_format = NULL;
2373
2374 if (daemon_bwlimit && (!bwlimit || bwlimit > daemon_bwlimit))
2375 bwlimit = daemon_bwlimit;
2376 if (bwlimit) {
2377 bwlimit_writemax = (size_t)bwlimit * 128;
2378 if (bwlimit_writemax < 512)
2379 bwlimit_writemax = 512;
2380 }
2381
2382 if (append_mode) {
2383 if (whole_file > 0) {
2384 snprintf(err_buf, sizeof err_buf,
2385 "--append cannot be used with --whole-file\n");
2386 goto cleanup;
2387 }
2388 if (refused_inplace) {
2389 create_refuse_error(refused_inplace);
2390 goto cleanup;
2391 }
2392 inplace = 1;
2393 }
2394
2395 if (write_devices) {
2396 if (refused_inplace) {
2397 create_refuse_error(refused_inplace);
2398 goto cleanup;
2399 }
2400 inplace = 1;
2401 }
2402
2403 if (delay_updates && !partial_dir)
2404 partial_dir = tmp_partialdir;
2405
2406 if (inplace) {
2407 #ifdef HAVE_FTRUNCATE
2408 if (partial_dir) {
2409 snprintf(err_buf, sizeof err_buf,
2410 "--%s cannot be used with --%s\n",
2411 append_mode ? "append" : "inplace",
2412 delay_updates ? "delay-updates" : "partial-dir");
2413 goto cleanup;
2414 }
2415 /* --inplace implies --partial for refusal purposes, but we
2416 * clear the keep_partial flag for internal logic purposes. */
2417 if (refused_partial) {
2418 create_refuse_error(refused_partial);
2419 goto cleanup;
2420 }
2421 keep_partial = 0;
2422 #else
2423 snprintf(err_buf, sizeof err_buf,
2424 "--%s is not supported on this %s\n",
2425 append_mode ? "append" : "inplace",
2426 am_server ? "server" : "client");
2427 goto cleanup;
2428 #endif
2429 } else {
2430 if (keep_partial && !partial_dir && !am_server) {
2431 if ((arg = getenv("RSYNC_PARTIAL_DIR")) != NULL && *arg)
2432 partial_dir = strdup(arg);
2433 }
2434 if (partial_dir) {
2435 if (*partial_dir)
2436 clean_fname(partial_dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2437 if (!*partial_dir || strcmp(partial_dir, ".") == 0)
2438 partial_dir = NULL;
2439 if (!partial_dir && refused_partial) {
2440 create_refuse_error(refused_partial);
2441 goto cleanup;
2442 }
2443 keep_partial = 1;
2444 }
2445 }
2446
2447 if (files_from) {
2448 char *h, *p;
2449 int q;
2450 if (argc > 2 || (!am_daemon && !am_server && argc == 1)) {
2451 usage(FERROR);
2452 exit_cleanup(RERR_SYNTAX);
2453 }
2454 if (strcmp(files_from, "-") == 0) {
2455 filesfrom_fd = 0;
2456 if (am_server)
2457 filesfrom_host = ""; /* reading from socket */
2458 } else if ((p = check_for_hostspec(files_from, &h, &q)) != 0) {
2459 if (am_server) {
2460 snprintf(err_buf, sizeof err_buf,
2461 "The --files-from sent to the server cannot specify a host.\n");
2462 goto cleanup;
2463 }
2464 files_from = p;
2465 filesfrom_host = h;
2466 if (strcmp(files_from, "-") == 0) {
2467 snprintf(err_buf, sizeof err_buf,
2468 "Invalid --files-from remote filename\n");
2469 goto cleanup;
2470 }
2471 } else {
2472 if (sanitize_paths)
2473 files_from = sanitize_path(NULL, files_from, NULL, 0, SP_DEFAULT);
2474 if (daemon_filter_list.head) {
2475 char *dir;
2476 if (!*files_from)
2477 goto options_rejected;
2478 dir = files_from + (*files_from == '/' ? module_dirlen : 0);
2479 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2480 if (check_filter(&daemon_filter_list, FLOG, dir, 0) < 0)
2481 goto options_rejected;
2482 }
2483 filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
2484 if (filesfrom_fd < 0) {
2485 snprintf(err_buf, sizeof err_buf,
2486 "failed to open files-from file %s: %s\n",
2487 files_from, strerror(errno));
2488 goto cleanup;
2489 }
2490 }
2491 }
2492
2493 if (trust_sender || am_server || read_batch)
2494 trust_sender_args = trust_sender_filter = 1;
2495 else if (old_style_args || filesfrom_host != NULL)
2496 trust_sender_args = 1;
2497
2498 am_starting_up = 0;
2499
2500 return 1;
2501
2502 options_rejected:
2503 snprintf(err_buf, sizeof err_buf,
2504 "Your options have been rejected by the server.\n");
2505 cleanup:
2506 if (pc)
2507 poptFreeContext(pc);
2508 return 0;
2509 }
2510
2511
2512 static char SPLIT_ARG_WHEN_OLD[1];
2513
2514 /**
2515 * Do backslash quoting of any weird chars in "arg", append the resulting
2516 * string to the end of the "opt" (which gets a "=" appended if it is not
2517 * an empty or NULL string), and return the (perhaps malloced) result.
2518 * If opt is NULL, arg is considered a filename arg that allows wildcards.
2519 * If it is "" or any other value, it is considered an option.
2520 **/
2521 char *safe_arg(const char *opt, const char *arg)
2522 {
2523 #define SHELL_CHARS "!#$&;|<>(){}\"'` \t\\"
2524 #define WILD_CHARS "*?[]" /* We don't allow remote brace expansion */
2525 BOOL is_filename_arg = !opt;
2526 char *escapes = is_filename_arg ? SHELL_CHARS : WILD_CHARS SHELL_CHARS;
2527 BOOL escape_leading_dash = is_filename_arg && *arg == '-';
2528 BOOL escape_leading_tilde = 0;
2529 int len1 = opt && *opt ? strlen(opt) + 1 : 0;
2530 int len2 = strlen(arg);
2531 int extras = escape_leading_dash ? 2 : 0;
2532 char *ret;
2533 if (!protect_args && old_style_args < 2 && (!old_style_args || (!is_filename_arg && opt != SPLIT_ARG_WHEN_OLD))) {
2534 const char *f;
2535 if (*arg == '~' && is_filename_arg && !am_sender && !trust_sender_args
2536 && ((relative_paths && !strstr(arg, "/./"))
2537 || !strchr(arg, '/'))) {
2538 extras++;
2539 escape_leading_tilde = 1;
2540 }
2541 for (f = arg; *f; f++) {
2542 if (strchr(escapes, *f))
2543 extras++;
2544 }
2545 }
2546 if (!len1 && !extras)
2547 return (char*)arg;
2548 ret = new_array(char, len1 + len2 + extras + 1);
2549 if (len1) {
2550 memcpy(ret, opt, len1-1);
2551 ret[len1-1] = '=';
2552 }
2553 if (escape_leading_dash) {
2554 ret[len1++] = '.';
2555 ret[len1++] = '/';
2556 extras -= 2;
2557 }
2558 if (!extras)
2559 memcpy(ret + len1, arg, len2);
2560 else {
2561 const char *f = arg;
2562 char *t = ret + len1;
2563 if (escape_leading_tilde)
2564 *t++ = '\\';
2565 while (*f) {
2566 if (*f == '\\') {
2567 if (!is_filename_arg || !strchr(WILD_CHARS, f[1]))
2568 *t++ = '\\';
2569 } else if (strchr(escapes, *f))
2570 *t++ = '\\';
2571 *t++ = *f++;
2572 }
2573 }
2574 ret[len1+len2+extras] = '\0';
2575 return ret;
2576 }
2577
2578
2579 /**
2580 * Construct a filtered list of options to pass through from the
2581 * client to the server.
2582 *
2583 * This involves setting options that will tell the server how to
2584 * behave, and also filtering out options that are processed only
2585 * locally.
2586 **/
2587 void server_options(char **args, int *argc_p)
2588 {
2589 static char argstr[64];
2590 int ac = *argc_p;
2591 uchar where;
2592 char *arg;
2593 int i, x;
2594
2595 /* This should always remain first on the server's command-line. */
2596 args[ac++] = "--server";
2597
2598 if (!am_sender)
2599 args[ac++] = "--sender";
2600
2601 x = 1;
2602 argstr[0] = '-';
2603
2604 if (protect_args)
2605 argstr[x++] = 's';
2606
2607 for (i = 0; i < verbose; i++)
2608 argstr[x++] = 'v';
2609
2610 if (quiet && msgs2stderr)
2611 argstr[x++] = 'q';
2612 if (make_backups)
2613 argstr[x++] = 'b';
2614 if (update_only)
2615 argstr[x++] = 'u';
2616 if (!do_xfers) /* Note: NOT "dry_run"! */
2617 argstr[x++] = 'n';
2618 if (preserve_links)
2619 argstr[x++] = 'l';
2620 if ((xfer_dirs >= 2 && xfer_dirs < 4)
2621 || (xfer_dirs && !recurse && (list_only || (delete_mode && am_sender))))
2622 argstr[x++] = 'd';
2623 if (am_sender) {
2624 if (keep_dirlinks)
2625 argstr[x++] = 'K';
2626 if (prune_empty_dirs)
2627 argstr[x++] = 'm';
2628 if (omit_dir_times > 0)
2629 argstr[x++] = 'O';
2630 if (omit_link_times)
2631 argstr[x++] = 'J';
2632 if (fuzzy_basis) {
2633 argstr[x++] = 'y';
2634 if (fuzzy_basis > 1)
2635 argstr[x++] = 'y';
2636 }
2637 } else {
2638 if (copy_links)
2639 argstr[x++] = 'L';
2640 if (copy_dirlinks)
2641 argstr[x++] = 'k';
2642 }
2643
2644 if (whole_file > 0)
2645 argstr[x++] = 'W';
2646 /* We don't need to send --no-whole-file, because it's the
2647 * default for remote transfers, and in any case old versions
2648 * of rsync will not understand it. */
2649
2650 if (preserve_hard_links) {
2651 argstr[x++] = 'H';
2652 if (preserve_hard_links > 1)
2653 argstr[x++] = 'H';
2654 }
2655 if (preserve_uid)
2656 argstr[x++] = 'o';
2657 if (preserve_gid)
2658 argstr[x++] = 'g';
2659 if (preserve_devices) /* ignore preserve_specials here */
2660 argstr[x++] = 'D';
2661 if (preserve_mtimes)
2662 argstr[x++] = 't';
2663 if (preserve_atimes) {
2664 argstr[x++] = 'U';
2665 if (preserve_atimes > 1)
2666 argstr[x++] = 'U';
2667 }
2668 #ifdef SUPPORT_CRTIMES
2669 if (preserve_crtimes)
2670 argstr[x++] = 'N';
2671 #endif
2672 if (preserve_perms)
2673 argstr[x++] = 'p';
2674 else if (preserve_executability && am_sender)
2675 argstr[x++] = 'E';
2676 #ifdef SUPPORT_ACLS
2677 if (preserve_acls)
2678 argstr[x++] = 'A';
2679 #endif
2680 #ifdef SUPPORT_XATTRS
2681 if (preserve_xattrs) {
2682 argstr[x++] = 'X';
2683 if (preserve_xattrs > 1)
2684 argstr[x++] = 'X';
2685 }
2686 #endif
2687 if (recurse)
2688 argstr[x++] = 'r';
2689 if (always_checksum)
2690 argstr[x++] = 'c';
2691 if (cvs_exclude)
2692 argstr[x++] = 'C';
2693 if (ignore_times)
2694 argstr[x++] = 'I';
2695 if (relative_paths)
2696 argstr[x++] = 'R';
2697 if (one_file_system) {
2698 argstr[x++] = 'x';
2699 if (one_file_system > 1)
2700 argstr[x++] = 'x';
2701 }
2702 if (sparse_files)
2703 argstr[x++] = 'S';
2704 if (do_compression == CPRES_ZLIB)
2705 argstr[x++] = 'z';
2706
2707 set_allow_inc_recurse();
2708
2709 /* This '\0'-terminates argstr and makes sure it didn't overflow. */
2710 x += maybe_add_e_option(argstr + x, (int)sizeof argstr - x);
2711
2712 if (x > 1)
2713 args[ac++] = argstr;
2714
2715 #ifdef ICONV_OPTION
2716 if (iconv_opt) {
2717 char *set = strchr(iconv_opt, ',');
2718 if (set)
2719 set++;
2720 else
2721 set = iconv_opt;
2722 args[ac++] = safe_arg("--iconv", set);
2723 }
2724 #endif
2725
2726 if (protect_args && !local_server) /* unprotected args stop here */
2727 args[ac++] = NULL;
2728
2729 if (list_only > 1)
2730 args[ac++] = "--list-only";
2731
2732 /* This makes sure that the remote rsync can handle deleting with -d
2733 * sans -r because the --no-r option was added at the same time. */
2734 if (xfer_dirs && !recurse && delete_mode && am_sender)
2735 args[ac++] = "--no-r";
2736
2737 if (do_compression && do_compression_level != CLVL_NOT_SPECIFIED) {
2738 if (asprintf(&arg, "--compress-level=%d", do_compression_level) < 0)
2739 goto oom;
2740 args[ac++] = arg;
2741 }
2742
2743 if (preserve_devices) {
2744 /* Note: sending "--devices" would not be backward-compatible. */
2745 if (!preserve_specials)
2746 args[ac++] = "--no-specials"; /* -D is already set. */
2747 } else if (preserve_specials)
2748 args[ac++] = "--specials";
2749
2750 /* The server side doesn't use our log-format, but in certain
2751 * circumstances they need to know a little about the option. */
2752 if (stdout_format && am_sender) {
2753 /* Use --log-format, not --out-format, for compatibility. */
2754 if (stdout_format_has_i > 1)
2755 args[ac++] = "--log-format=%i%I";
2756 else if (stdout_format_has_i)
2757 args[ac++] = "--log-format=%i";
2758 else if (stdout_format_has_o_or_i)
2759 args[ac++] = "--log-format=%o";
2760 else if (!verbose)
2761 args[ac++] = "--log-format=X";
2762 }
2763
2764 if (msgs2stderr == 1)
2765 args[ac++] = "--msgs2stderr";
2766 else if (msgs2stderr == 0)
2767 args[ac++] = "--no-msgs2stderr";
2768
2769 if (block_size) {
2770 if (asprintf(&arg, "-B%u", (int)block_size) < 0)
2771 goto oom;
2772 args[ac++] = arg;
2773 }
2774
2775 if (io_timeout) {
2776 if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
2777 goto oom;
2778 args[ac++] = arg;
2779 }
2780
2781 if (bwlimit) {
2782 if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
2783 goto oom;
2784 args[ac++] = arg;
2785 }
2786
2787 if (backup_dir) {
2788 /* This split idiom allows for ~/path expansion via the shell. */
2789 args[ac++] = "--backup-dir";
2790 args[ac++] = safe_arg("", backup_dir);
2791 }
2792
2793 /* Only send --suffix if it specifies a non-default value. */
2794 if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0)
2795 args[ac++] = safe_arg("--suffix", backup_suffix);
2796
2797 if (checksum_choice)
2798 args[ac++] = safe_arg("--checksum-choice", checksum_choice);
2799
2800 if (do_compression == CPRES_ZLIBX)
2801 args[ac++] = "--new-compress";
2802 else if (compress_choice && do_compression == CPRES_ZLIB)
2803 args[ac++] = "--old-compress";
2804 else if (compress_choice)
2805 args[ac++] = safe_arg("--compress-choice", compress_choice);
2806
2807 if (am_sender) {
2808 if (max_delete > 0) {
2809 if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
2810 goto oom;
2811 args[ac++] = arg;
2812 } else if (max_delete == 0)
2813 args[ac++] = "--max-delete=-1";
2814 if (min_size >= 0)
2815 args[ac++] = safe_arg("--min-size", min_size_arg);
2816 if (max_size >= 0)
2817 args[ac++] = safe_arg("--max-size", max_size_arg);
2818 if (delete_before)
2819 args[ac++] = "--delete-before";
2820 else if (delete_during == 2)
2821 args[ac++] = "--delete-delay";
2822 else if (delete_during)
2823 args[ac++] = "--delete-during";
2824 else if (delete_after)
2825 args[ac++] = "--delete-after";
2826 else if (delete_mode && !delete_excluded)
2827 args[ac++] = "--delete";
2828 if (delete_excluded)
2829 args[ac++] = "--delete-excluded";
2830 if (force_delete)
2831 args[ac++] = "--force";
2832 if (write_batch < 0)
2833 args[ac++] = "--only-write-batch=X";
2834 if (am_root > 1)
2835 args[ac++] = "--super";
2836 if (size_only)
2837 args[ac++] = "--size-only";
2838 if (do_stats)
2839 args[ac++] = "--stats";
2840 } else {
2841 if (skip_compress)
2842 args[ac++] = safe_arg("--skip-compress", skip_compress);
2843 }
2844
2845 if (max_alloc_arg && max_alloc != DEFAULT_MAX_ALLOC)
2846 args[ac++] = safe_arg("--max-alloc", max_alloc_arg);
2847
2848 /* --delete-missing-args needs the cooperation of both sides, but
2849 * the sender can handle --ignore-missing-args by itself. */
2850 if (missing_args == 2)
2851 args[ac++] = "--delete-missing-args";
2852 else if (missing_args == 1 && !am_sender)
2853 args[ac++] = "--ignore-missing-args";
2854
2855 if (modify_window_set && am_sender) {
2856 char *fmt = modify_window < 0 ? "-@%d" : "--modify-window=%d";
2857 if (asprintf(&arg, fmt, modify_window) < 0)
2858 goto oom;
2859 args[ac++] = arg;
2860 }
2861
2862 if (checksum_seed) {
2863 if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
2864 goto oom;
2865 args[ac++] = arg;
2866 }
2867
2868 if (partial_dir && am_sender) {
2869 if (partial_dir != tmp_partialdir) {
2870 args[ac++] = "--partial-dir";
2871 args[ac++] = safe_arg("", partial_dir);
2872 }
2873 if (delay_updates)
2874 args[ac++] = "--delay-updates";
2875 } else if (keep_partial && am_sender)
2876 args[ac++] = "--partial";
2877
2878 if (ignore_errors)
2879 args[ac++] = "--ignore-errors";
2880
2881 if (copy_unsafe_links)
2882 args[ac++] = "--copy-unsafe-links";
2883
2884 if (safe_symlinks)
2885 args[ac++] = "--safe-links";
2886
2887 if (numeric_ids)
2888 args[ac++] = "--numeric-ids";
2889
2890 if (use_qsort)
2891 args[ac++] = "--use-qsort";
2892
2893 if (am_sender) {
2894 if (usermap)
2895 args[ac++] = safe_arg("--usermap", usermap);
2896
2897 if (groupmap)
2898 args[ac++] = safe_arg("--groupmap", groupmap);
2899
2900 if (ignore_existing)
2901 args[ac++] = "--ignore-existing";
2902
2903 /* Backward compatibility: send --existing, not --ignore-non-existing. */
2904 if (ignore_non_existing)
2905 args[ac++] = "--existing";
2906
2907 if (tmpdir) {
2908 args[ac++] = "--temp-dir";
2909 args[ac++] = safe_arg("", tmpdir);
2910 }
2911
2912 if (do_fsync)
2913 args[ac++] = "--fsync";
2914
2915 if (basis_dir[0]) {
2916 /* the server only needs this option if it is not the sender,
2917 * and it may be an older version that doesn't know this
2918 * option, so don't send it if client is the sender.
2919 */
2920 for (i = 0; i < basis_dir_cnt; i++) {
2921 args[ac++] = alt_dest_opt(0);
2922 args[ac++] = safe_arg("", basis_dir[i]);
2923 }
2924 }
2925 }
2926
2927 /* What flags do we need to send to the other side? */
2928 where = (am_server ? W_CLI : W_SRV) | (am_sender ? W_REC : W_SND);
2929 arg = make_output_option(info_words, info_levels, where);
2930 if (arg)
2931 args[ac++] = arg;
2932
2933 if (append_mode) {
2934 if (append_mode > 1)
2935 args[ac++] = "--append";
2936 args[ac++] = "--append";
2937 } else if (inplace) {
2938 args[ac++] = "--inplace";
2939 /* Work around a bug in older rsync versions (on the remote side) for --inplace --sparse */
2940 if (sparse_files && !whole_file && am_sender)
2941 args[ac++] = "--no-W";
2942 }
2943
2944 if (files_from && (!am_sender || filesfrom_host)) {
2945 if (filesfrom_host) {
2946 args[ac++] = "--files-from";
2947 args[ac++] = safe_arg("", files_from);
2948 if (eol_nulls)
2949 args[ac++] = "--from0";
2950 } else {
2951 args[ac++] = "--files-from=-";
2952 args[ac++] = "--from0";
2953 }
2954 if (!relative_paths)
2955 args[ac++] = "--no-relative";
2956 }
2957 /* It's OK that this checks the upper-bound of the protocol_version. */
2958 if (relative_paths && !implied_dirs && (!am_sender || protocol_version >= 30))
2959 args[ac++] = "--no-implied-dirs";
2960
2961 if (write_devices && am_sender)
2962 args[ac++] = "--write-devices";
2963
2964 if (remove_source_files == 1)
2965 args[ac++] = "--remove-source-files";
2966 else if (remove_source_files)
2967 args[ac++] = "--remove-sent-files";
2968
2969 if (copy_devices && !am_sender)
2970 args[ac++] = "--copy-devices";
2971
2972 if (preallocate_files && am_sender)
2973 args[ac++] = "--preallocate";
2974
2975 if (open_noatime && preserve_atimes <= 1)
2976 args[ac++] = "--open-noatime";
2977
2978 if (mkpath_dest_arg && am_sender)
2979 args[ac++] = "--mkpath";
2980
2981 if (ac > MAX_SERVER_ARGS) { /* Not possible... */
2982 rprintf(FERROR, "argc overflow in server_options().\n");
2983 exit_cleanup(RERR_MALLOC);
2984 }
2985
2986 if (remote_option_cnt) {
2987 int j;
2988 if (ac + remote_option_cnt > MAX_SERVER_ARGS) {
2989 rprintf(FERROR, "too many remote options specified.\n");
2990 exit_cleanup(RERR_SYNTAX);
2991 }
2992 for (j = 1; j <= remote_option_cnt; j++)
2993 args[ac++] = safe_arg(SPLIT_ARG_WHEN_OLD, remote_options[j]);
2994 }
2995
2996 *argc_p = ac;
2997 return;
2998
2999 oom:
3000 out_of_memory("server_options");
3001 }
3002
3003 int maybe_add_e_option(char *buf, int buf_len)
3004 {
3005 int x = 0;
3006
3007 /* We don't really know the actual protocol_version at this point,
3008 * but checking the pre-negotiated value allows the user to use a
3009 * --protocol=29 override to avoid the use of this -eFLAGS opt. */
3010 if (protocol_version >= 30 && buf_len > 0) {
3011 /* We make use of the -e option to let the server know about
3012 * any pre-release protocol version && some behavior flags. */
3013 buf[x++] = 'e';
3014
3015 #if SUBPROTOCOL_VERSION != 0
3016 if (protocol_version == PROTOCOL_VERSION)
3017 x += snprintf(buf + x, buf_len - x, "%d.%d", PROTOCOL_VERSION, SUBPROTOCOL_VERSION);
3018 else
3019 #endif
3020 buf[x++] = '.';
3021 if (allow_inc_recurse)
3022 buf[x++] = 'i';
3023 #ifdef CAN_SET_SYMLINK_TIMES
3024 buf[x++] = 'L'; /* symlink time-setting support */
3025 #endif
3026 #ifdef ICONV_OPTION
3027 buf[x++] = 's'; /* symlink iconv translation support */
3028 #endif
3029 buf[x++] = 'f'; /* flist I/O-error safety support */
3030 buf[x++] = 'x'; /* xattr hardlink optimization not desired */
3031 buf[x++] = 'C'; /* support checksum seed order fix */
3032 buf[x++] = 'I'; /* support inplace_partial behavior */
3033 buf[x++] = 'v'; /* use varint for flist & compat flags; negotiate checksum */
3034 buf[x++] = 'u'; /* include name of uid 0 & gid 0 in the id map */
3035
3036 /* NOTE: Avoid using 'V' -- it was represented with the high bit of a write_byte() that became a write_varint(). */
3037 }
3038
3039 if (x >= buf_len) { /* Not possible... */
3040 rprintf(FERROR, "overflow in add_e_flags().\n");
3041 exit_cleanup(RERR_MALLOC);
3042 }
3043
3044 buf[x] = '\0';
3045
3046 return x;
3047 }
3048
3049 /* If str points to a valid hostspec, return allocated memory containing the
3050 * [USER@]HOST part of the string, and set the path_start_ptr to the part of
3051 * the string after the host part. Otherwise, return NULL. If port_ptr is
3052 * non-NULL, we must be parsing an rsync:// URL hostname, and we will set
3053 * *port_ptr if a port number is found. Note that IPv6 IPs will have their
3054 * (required for parsing) [ and ] chars elided from the returned string. */
3055 static char *parse_hostspec(char *str, char **path_start_ptr, int *port_ptr)
3056 {
3057 char *s, *host_start = str;
3058 int hostlen = 0, userlen = 0;
3059 char *ret;
3060
3061 for (s = str; ; s++) {
3062 if (!*s) {
3063 /* It is only OK if we run out of string with rsync:// */
3064 if (!port_ptr)
3065 return NULL;
3066 if (!hostlen)
3067 hostlen = s - host_start;
3068 break;
3069 }
3070 if (*s == ':' || *s == '/') {
3071 if (!hostlen)
3072 hostlen = s - host_start;
3073 if (*s++ == '/') {
3074 if (!port_ptr)
3075 return NULL;
3076 } else if (port_ptr) {
3077 *port_ptr = atoi(s);
3078 while (isDigit(s)) s++;
3079 if (*s && *s++ != '/')
3080 return NULL;
3081 }
3082 break;
3083 }
3084 if (*s == '@') {
3085 userlen = s - str + 1;
3086 host_start = s + 1;
3087 } else if (*s == '[') {
3088 if (s != host_start++)
3089 return NULL;
3090 while (*s && *s != ']' && *s != '/') s++; /*SHARED ITERATOR*/
3091 hostlen = s - host_start;
3092 if (*s != ']' || (s[1] && s[1] != '/' && s[1] != ':') || !hostlen)
3093 return NULL;
3094 }
3095 }
3096
3097 *path_start_ptr = s;
3098 ret = new_array(char, userlen + hostlen + 1);
3099 if (userlen)
3100 strlcpy(ret, str, userlen + 1);
3101 strlcpy(ret + userlen, host_start, hostlen + 1);
3102 return ret;
3103 }
3104
3105 /* Look for a HOST specification of the form "HOST:PATH", "HOST::PATH", or
3106 * "rsync://HOST:PORT/PATH". If found, *host_ptr will be set to some allocated
3107 * memory with the HOST. If a daemon-accessing spec was specified, the value
3108 * of *port_ptr will contain a non-0 port number, otherwise it will be set to
3109 * 0. The return value is a pointer to the PATH. Note that the HOST spec can
3110 * be an IPv6 literal address enclosed in '[' and ']' (such as "[::1]" or
3111 * "[::ffff:127.0.0.1]") which is returned without the '[' and ']'. */
3112 char *check_for_hostspec(char *s, char **host_ptr, int *port_ptr)
3113 {
3114 char *path;
3115
3116 if (port_ptr && strncasecmp(URL_PREFIX, s, strlen(URL_PREFIX)) == 0) {
3117 *host_ptr = parse_hostspec(s + strlen(URL_PREFIX), &path, port_ptr);
3118 if (*host_ptr) {
3119 if (!*port_ptr)
3120 *port_ptr = -1; /* -1 indicates they want the default */
3121 return path;
3122 }
3123 }
3124
3125 *host_ptr = parse_hostspec(s, &path, NULL);
3126 if (!*host_ptr)
3127 return NULL;
3128
3129 if (*path == ':') {
3130 if (port_ptr && !*port_ptr)
3131 *port_ptr = -1;
3132 return path + 1;
3133 }
3134 if (port_ptr)
3135 *port_ptr = 0;
3136
3137 return path;
3138 }
rsync: a fast, versatile, remote (and local) file-copying tool