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Replace mkproto.pl with mkproto.awk
[rsync.git] / options.c
blob2db357e272727c76e3a090f6240a844c54687bdc
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) 2002-2019 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 <popt.h>
25 #include <zlib.h>
26
27 extern int module_id;
28 extern int local_server;
29 extern int sanitize_paths;
30 extern int daemon_over_rsh;
31 extern unsigned int module_dirlen;
32 extern filter_rule_list filter_list;
33 extern filter_rule_list daemon_filter_list;
34
35 #define NOT_SPECIFIED (-42)
36
37 int make_backups = 0;
38
39 /**
40 * If 1, send the whole file as literal data rather than trying to
41 * create an incremental diff.
42 *
43 * If -1, then look at whether we're local or remote and go by that.
44 *
45 * @sa disable_deltas_p()
46 **/
47 int whole_file = -1;
48
49 int append_mode = 0;
50 int keep_dirlinks = 0;
51 int copy_dirlinks = 0;
52 int copy_links = 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_times = 0;
65 int update_only = 0;
66 int cvs_exclude = 0;
67 int dry_run = 0;
68 int do_xfers = 1;
69 int ignore_times = 0;
70 int delete_mode = 0;
71 int delete_during = 0;
72 int delete_before = 0;
73 int delete_after = 0;
74 int delete_excluded = 0;
75 int remove_source_files = 0;
76 int one_file_system = 0;
77 int protocol_version = PROTOCOL_VERSION;
78 int sparse_files = 0;
79 int preallocate_files = 0;
80 int do_compression = 0;
81 int def_compress_level = NOT_SPECIFIED;
82 int am_root = 0; /* 0 = normal, 1 = root, 2 = --super, -1 = --fake-super */
83 int am_server = 0;
84 int am_sender = 0;
85 int am_starting_up = 1;
86 int relative_paths = -1;
87 int implied_dirs = 1;
88 int missing_args = 0; /* 0 = FERROR_XFER, 1 = ignore, 2 = delete */
89 int numeric_ids = 0;
90 int msgs2stderr = 0;
91 int allow_8bit_chars = 0;
92 int force_delete = 0;
93 int io_timeout = 0;
94 int prune_empty_dirs = 0;
95 int use_qsort = 0;
96 char *files_from = NULL;
97 int filesfrom_fd = -1;
98 char *filesfrom_host = NULL;
99 int eol_nulls = 0;
100 int protect_args = -1;
101 int human_readable = 1;
102 int recurse = 0;
103 int allow_inc_recurse = 1;
104 int xfer_dirs = -1;
105 int am_daemon = 0;
106 int connect_timeout = 0;
107 int keep_partial = 0;
108 int safe_symlinks = 0;
109 int copy_unsafe_links = 0;
110 int munge_symlinks = 0;
111 int size_only = 0;
112 int daemon_bwlimit = 0;
113 int bwlimit = 0;
114 int fuzzy_basis = 0;
115 size_t bwlimit_writemax = 0;
116 int ignore_existing = 0;
117 int ignore_non_existing = 0;
118 int need_messages_from_generator = 0;
119 int max_delete = INT_MIN;
120 OFF_T max_size = -1;
121 OFF_T min_size = -1;
122 int ignore_errors = 0;
123 int modify_window = 0;
124 int blocking_io = -1;
125 int checksum_seed = 0;
126 int inplace = 0;
127 int delay_updates = 0;
128 long block_size = 0; /* "long" because popt can't set an int32. */
129 char *skip_compress = NULL;
130 char *copy_as = NULL;
131 item_list dparam_list = EMPTY_ITEM_LIST;
132
133 /** Network address family. **/
134 int default_af_hint
135 #ifdef INET6
136 = 0; /* Any protocol */
137 #else
138 = AF_INET; /* Must use IPv4 */
139 # ifdef AF_INET6
140 # undef AF_INET6
141 # endif
142 # define AF_INET6 AF_INET /* make -6 option a no-op */
143 #endif
144
145 /** Do not go into the background when run as --daemon. Good
146 * for debugging and required for running as a service on W32,
147 * or under Unix process-monitors. **/
148 int no_detach
149 #if defined _WIN32 || defined __WIN32__
150 = 1;
151 #else
152 = 0;
153 #endif
154
155 int write_batch = 0;
156 int read_batch = 0;
157 int backup_dir_len = 0;
158 int backup_suffix_len;
159 unsigned int backup_dir_remainder;
160
161 char *backup_suffix = NULL;
162 char *tmpdir = NULL;
163 char *partial_dir = NULL;
164 char *basis_dir[MAX_BASIS_DIRS+1];
165 char *config_file = NULL;
166 char *shell_cmd = NULL;
167 char *logfile_name = NULL;
168 char *logfile_format = NULL;
169 char *stdout_format = NULL;
170 char *password_file = NULL;
171 char *rsync_path = RSYNC_PATH;
172 char *backup_dir = NULL;
173 char backup_dir_buf[MAXPATHLEN];
174 char *sockopts = NULL;
175 char *usermap = NULL;
176 char *groupmap = NULL;
177 int rsync_port = 0;
178 int compare_dest = 0;
179 int copy_dest = 0;
180 int link_dest = 0;
181 int basis_dir_cnt = 0;
182 char *dest_option = NULL;
183
184 static int remote_option_alloc = 0;
185 int remote_option_cnt = 0;
186 const char **remote_options = NULL;
187 const char *checksum_choice = NULL;
188
189 int quiet = 0;
190 int output_motd = 1;
191 int log_before_transfer = 0;
192 int stdout_format_has_i = 0;
193 int stdout_format_has_o_or_i = 0;
194 int logfile_format_has_i = 0;
195 int logfile_format_has_o_or_i = 0;
196 int always_checksum = 0;
197 int list_only = 0;
198
199 #define MAX_BATCH_NAME_LEN 256 /* Must be less than MAXPATHLEN-13 */
200 char *batch_name = NULL;
201
202 int need_unsorted_flist = 0;
203 #ifdef ICONV_OPTION
204 char *iconv_opt = ICONV_OPTION;
205 #endif
206
207 struct chmod_mode_struct *chmod_modes = NULL;
208
209 static const char *debug_verbosity[] = {
210 /*0*/ NULL,
211 /*1*/ NULL,
212 /*2*/ "BIND,CMD,CONNECT,DEL,DELTASUM,DUP,FILTER,FLIST,ICONV",
213 /*3*/ "ACL,BACKUP,CONNECT2,DELTASUM2,DEL2,EXIT,FILTER2,FLIST2,FUZZY,GENR,OWN,RECV,SEND,TIME",
214 /*4*/ "CMD2,DELTASUM3,DEL3,EXIT2,FLIST3,ICONV2,OWN2,PROTO,TIME2",
215 /*5*/ "CHDIR,DELTASUM4,FLIST4,FUZZY2,HASH,HLINK",
216 };
217
218 #define MAX_VERBOSITY ((int)(sizeof debug_verbosity / sizeof debug_verbosity[0]) - 1)
219
220 static const char *info_verbosity[1+MAX_VERBOSITY] = {
221 /*0*/ NULL,
222 /*1*/ "COPY,DEL,FLIST,MISC,NAME,STATS,SYMSAFE",
223 /*2*/ "BACKUP,MISC2,MOUNT,NAME2,REMOVE,SKIP",
224 };
225
226 #define MAX_OUT_LEVEL 4 /* The largest N allowed for any flagN word. */
227
228 short info_levels[COUNT_INFO], debug_levels[COUNT_DEBUG];
229
230 #define DEFAULT_PRIORITY 0 /* Default/implied/--verbose set values. */
231 #define HELP_PRIORITY 1 /* The help output uses this level. */
232 #define USER_PRIORITY 2 /* User-specified via --info or --debug */
233 #define LIMIT_PRIORITY 3 /* Overriding priority when limiting values. */
234
235 #define W_CLI (1<<0) /* client side */
236 #define W_SRV (1<<1) /* server side */
237 #define W_SND (1<<2) /* sending side */
238 #define W_REC (1<<3) /* receiving side */
239
240 struct output_struct {
241 char *name; /* The name of the info/debug flag. */
242 char *help; /* The description of the info/debug flag. */
243 uchar namelen; /* The length of the name string. */
244 uchar flag; /* The flag's value, for consistency check. */
245 uchar where; /* Bits indicating where the flag is used. */
246 uchar priority; /* See *_PRIORITY defines. */
247 };
248
249 #define INFO_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, INFO_##flag, where, 0 }
250
251 static struct output_struct info_words[COUNT_INFO+1] = {
252 INFO_WORD(BACKUP, W_REC, "Mention files backed up"),
253 INFO_WORD(COPY, W_REC, "Mention files copied locally on the receiving side"),
254 INFO_WORD(DEL, W_REC, "Mention deletions on the receiving side"),
255 INFO_WORD(FLIST, W_CLI, "Mention file-list receiving/sending (levels 1-2)"),
256 INFO_WORD(MISC, W_SND|W_REC, "Mention miscellaneous information (levels 1-2)"),
257 INFO_WORD(MOUNT, W_SND|W_REC, "Mention mounts that were found or skipped"),
258 INFO_WORD(NAME, W_SND|W_REC, "Mention 1) updated file/dir names, 2) unchanged names"),
259 INFO_WORD(PROGRESS, W_CLI, "Mention 1) per-file progress or 2) total transfer progress"),
260 INFO_WORD(REMOVE, W_SND, "Mention files removed on the sending side"),
261 INFO_WORD(SKIP, W_REC, "Mention files that are skipped due to options used"),
262 INFO_WORD(STATS, W_CLI|W_SRV, "Mention statistics at end of run (levels 1-3)"),
263 INFO_WORD(SYMSAFE, W_SND|W_REC, "Mention symlinks that are unsafe"),
264 { NULL, "--info", 0, 0, 0, 0 }
265 };
266
267 #define DEBUG_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, DEBUG_##flag, where, 0 }
268
269 static struct output_struct debug_words[COUNT_DEBUG+1] = {
270 DEBUG_WORD(ACL, W_SND|W_REC, "Debug extra ACL info"),
271 DEBUG_WORD(BACKUP, W_REC, "Debug backup actions (levels 1-2)"),
272 DEBUG_WORD(BIND, W_CLI, "Debug socket bind actions"),
273 DEBUG_WORD(CHDIR, W_CLI|W_SRV, "Debug when the current directory changes"),
274 DEBUG_WORD(CONNECT, W_CLI, "Debug connection events (levels 1-2)"),
275 DEBUG_WORD(CMD, W_CLI, "Debug commands+options that are issued (levels 1-2)"),
276 DEBUG_WORD(DEL, W_REC, "Debug delete actions (levels 1-3)"),
277 DEBUG_WORD(DELTASUM, W_SND|W_REC, "Debug delta-transfer checksumming (levels 1-4)"),
278 DEBUG_WORD(DUP, W_REC, "Debug weeding of duplicate names"),
279 DEBUG_WORD(EXIT, W_CLI|W_SRV, "Debug exit events (levels 1-3)"),
280 DEBUG_WORD(FILTER, W_SND|W_REC, "Debug filter actions (levels 1-2)"),
281 DEBUG_WORD(FLIST, W_SND|W_REC, "Debug file-list operations (levels 1-4)"),
282 DEBUG_WORD(FUZZY, W_REC, "Debug fuzzy scoring (levels 1-2)"),
283 DEBUG_WORD(GENR, W_REC, "Debug generator functions"),
284 DEBUG_WORD(HASH, W_SND|W_REC, "Debug hashtable code"),
285 DEBUG_WORD(HLINK, W_SND|W_REC, "Debug hard-link actions (levels 1-3)"),
286 DEBUG_WORD(ICONV, W_CLI|W_SRV, "Debug iconv character conversions (levels 1-2)"),
287 DEBUG_WORD(IO, W_CLI|W_SRV, "Debug I/O routines (levels 1-4)"),
288 DEBUG_WORD(OWN, W_REC, "Debug ownership changes in users & groups (levels 1-2)"),
289 DEBUG_WORD(PROTO, W_CLI|W_SRV, "Debug protocol information"),
290 DEBUG_WORD(RECV, W_REC, "Debug receiver functions"),
291 DEBUG_WORD(SEND, W_SND, "Debug sender functions"),
292 DEBUG_WORD(TIME, W_REC, "Debug setting of modified times (levels 1-2)"),
293 { NULL, "--debug", 0, 0, 0, 0 }
294 };
295
296 static int verbose = 0;
297 static int do_stats = 0;
298 static int do_progress = 0;
299 static int daemon_opt; /* sets am_daemon after option error-reporting */
300 static int omit_dir_times = 0;
301 static int omit_link_times = 0;
302 static int F_option_cnt = 0;
303 static int modify_window_set;
304 static int itemize_changes = 0;
305 static int refused_delete, refused_archive_part, refused_compress;
306 static int refused_partial, refused_progress, refused_delete_before;
307 static int refused_delete_during;
308 static int refused_inplace, refused_no_iconv;
309 static BOOL usermap_via_chown, groupmap_via_chown;
310 #ifdef HAVE_SETVBUF
311 static char *outbuf_mode;
312 #endif
313 static char *bwlimit_arg, *max_size_arg, *min_size_arg;
314 static char tmp_partialdir[] = ".~tmp~";
315
316 /** Local address to bind. As a character string because it's
317 * interpreted by the IPv6 layer: should be a numeric IP4 or IP6
318 * address, or a hostname. **/
319 char *bind_address;
320
321 static void output_item_help(struct output_struct *words);
322
323 /* This constructs a string that represents all the options set for either
324 * the --info or --debug setting, skipping any implied options (by -v, etc.).
325 * This is used both when conveying the user's options to the server, and
326 * when the help output wants to tell the user what options are implied. */
327 static char *make_output_option(struct output_struct *words, short *levels, uchar where)
328 {
329 char *str = words == info_words ? "--info=" : "--debug=";
330 int j, counts[MAX_OUT_LEVEL+1], pos, skipped = 0, len = 0, max = 0, lev = 0;
331 int word_count = words == info_words ? COUNT_INFO : COUNT_DEBUG;
332 char *buf;
333
334 memset(counts, 0, sizeof counts);
335
336 for (j = 0; words[j].name; j++) {
337 if (words[j].flag != j) {
338 rprintf(FERROR, "rsync: internal error on %s%s: %d != %d\n",
339 words == info_words ? "INFO_" : "DEBUG_",
340 words[j].name, words[j].flag, j);
341 exit_cleanup(RERR_UNSUPPORTED);
342 }
343 if (!(words[j].where & where))
344 continue;
345 if (words[j].priority == DEFAULT_PRIORITY) {
346 /* Implied items don't need to be mentioned. */
347 skipped++;
348 continue;
349 }
350 len += len ? 1 : strlen(str);
351 len += strlen(words[j].name);
352 len += levels[j] == 1 ? 0 : 1;
353
354 if (words[j].priority == HELP_PRIORITY)
355 continue; /* no abbreviating for help */
356
357 assert(levels[j] <= MAX_OUT_LEVEL);
358 if (++counts[levels[j]] > max) {
359 /* Determine which level has the most items. */
360 lev = levels[j];
361 max = counts[lev];
362 }
363 }
364
365 /* Sanity check the COUNT_* define against the length of the table. */
366 if (j != word_count) {
367 rprintf(FERROR, "rsync: internal error: %s is wrong! (%d != %d)\n",
368 words == info_words ? "COUNT_INFO" : "COUNT_DEBUG",
369 j, word_count);
370 exit_cleanup(RERR_UNSUPPORTED);
371 }
372
373 if (!len)
374 return NULL;
375
376 len++;
377 if (!(buf = new_array(char, len)))
378 out_of_memory("make_output_option");
379 pos = 0;
380
381 if (skipped || max < 5)
382 lev = -1;
383 else {
384 if (lev == 0)
385 pos += snprintf(buf, len, "%sNONE", str);
386 else if (lev == 1)
387 pos += snprintf(buf, len, "%sALL", str);
388 else
389 pos += snprintf(buf, len, "%sALL%d", str, lev);
390 }
391
392 for (j = 0; words[j].name && pos < len; j++) {
393 if (words[j].priority == DEFAULT_PRIORITY || levels[j] == lev || !(words[j].where & where))
394 continue;
395 if (pos)
396 buf[pos++] = ',';
397 else
398 pos += strlcpy(buf+pos, str, len-pos);
399 if (pos < len)
400 pos += strlcpy(buf+pos, words[j].name, len-pos);
401 /* Level 1 is implied by the name alone. */
402 if (levels[j] != 1 && pos < len)
403 buf[pos++] = '0' + levels[j];
404 }
405
406 buf[pos] = '\0';
407
408 return buf;
409 }
410
411 static void parse_output_words(struct output_struct *words, short *levels,
412 const char *str, uchar priority)
413 {
414 const char *s;
415 int j, len, lev;
416
417 for ( ; str; str = s) {
418 if ((s = strchr(str, ',')) != NULL)
419 len = s++ - str;
420 else
421 len = strlen(str);
422 if (!len)
423 continue;
424 if (!isDigit(str)) {
425 while (len && isDigit(str+len-1))
426 len--;
427 }
428 lev = isDigit(str+len) ? atoi(str+len) : 1;
429 if (lev > MAX_OUT_LEVEL)
430 lev = MAX_OUT_LEVEL;
431 if (len == 4 && strncasecmp(str, "help", 4) == 0) {
432 output_item_help(words);
433 exit_cleanup(0);
434 }
435 if (len == 4 && strncasecmp(str, "none", 4) == 0)
436 len = lev = 0;
437 else if (len == 3 && strncasecmp(str, "all", 3) == 0)
438 len = 0;
439 for (j = 0; words[j].name; j++) {
440 if (!len
441 || (len == words[j].namelen && strncasecmp(str, words[j].name, len) == 0)) {
442 if (priority >= words[j].priority) {
443 words[j].priority = priority;
444 levels[j] = lev;
445 }
446 if (len)
447 break;
448 }
449 }
450 if (len && !words[j].name) {
451 rprintf(FERROR, "Unknown %s item: \"%.*s\"\n",
452 words[j].help, len, str);
453 exit_cleanup(RERR_SYNTAX);
454 }
455 }
456 }
457
458 /* Tell the user what all the info or debug flags mean. */
459 static void output_item_help(struct output_struct *words)
460 {
461 short *levels = words == info_words ? info_levels : debug_levels;
462 const char **verbosity = words == info_words ? info_verbosity : debug_verbosity;
463 char buf[128], *opt, *fmt = "%-10s %s\n";
464 int j;
465
466 reset_output_levels();
467
468 rprintf(FINFO, "Use OPT or OPT1 for level 1 output, OPT2 for level 2, etc.; OPT0 silences.\n");
469 rprintf(FINFO, "\n");
470 for (j = 0; words[j].name; j++)
471 rprintf(FINFO, fmt, words[j].name, words[j].help);
472 rprintf(FINFO, "\n");
473
474 snprintf(buf, sizeof buf, "Set all %s options (e.g. all%d)",
475 words[j].help, MAX_OUT_LEVEL);
476 rprintf(FINFO, fmt, "ALL", buf);
477
478 snprintf(buf, sizeof buf, "Silence all %s options (same as all0)",
479 words[j].help);
480 rprintf(FINFO, fmt, "NONE", buf);
481
482 rprintf(FINFO, fmt, "HELP", "Output this help message");
483 rprintf(FINFO, "\n");
484 rprintf(FINFO, "Options added for each increase in verbose level:\n");
485
486 for (j = 1; j <= MAX_VERBOSITY; j++) {
487 parse_output_words(words, levels, verbosity[j], HELP_PRIORITY);
488 opt = make_output_option(words, levels, W_CLI|W_SRV|W_SND|W_REC);
489 if (opt) {
490 rprintf(FINFO, "%d) %s\n", j, strchr(opt, '=')+1);
491 free(opt);
492 }
493 reset_output_levels();
494 }
495 }
496
497 /* The --verbose option now sets info+debug flags. */
498 static void set_output_verbosity(int level, uchar priority)
499 {
500 int j;
501
502 if (level > MAX_VERBOSITY)
503 level = MAX_VERBOSITY;
504
505 for (j = 1; j <= level; j++) {
506 parse_output_words(info_words, info_levels, info_verbosity[j], priority);
507 parse_output_words(debug_words, debug_levels, debug_verbosity[j], priority);
508 }
509 }
510
511 /* Limit the info+debug flag levels given a verbose-option level limit. */
512 void limit_output_verbosity(int level)
513 {
514 short info_limits[COUNT_INFO], debug_limits[COUNT_DEBUG];
515 int j;
516
517 if (level > MAX_VERBOSITY)
518 return;
519
520 memset(info_limits, 0, sizeof info_limits);
521 memset(debug_limits, 0, sizeof debug_limits);
522
523 /* Compute the level limits in the above arrays. */
524 for (j = 1; j <= level; j++) {
525 parse_output_words(info_words, info_limits, info_verbosity[j], LIMIT_PRIORITY);
526 parse_output_words(debug_words, debug_limits, debug_verbosity[j], LIMIT_PRIORITY);
527 }
528
529 for (j = 0; j < COUNT_INFO; j++) {
530 if (info_levels[j] > info_limits[j])
531 info_levels[j] = info_limits[j];
532 }
533
534 for (j = 0; j < COUNT_DEBUG; j++) {
535 if (debug_levels[j] > debug_limits[j])
536 debug_levels[j] = debug_limits[j];
537 }
538 }
539
540 void reset_output_levels(void)
541 {
542 int j;
543
544 memset(info_levels, 0, sizeof info_levels);
545 memset(debug_levels, 0, sizeof debug_levels);
546
547 for (j = 0; j < COUNT_INFO; j++)
548 info_words[j].priority = DEFAULT_PRIORITY;
549
550 for (j = 0; j < COUNT_DEBUG; j++)
551 debug_words[j].priority = DEFAULT_PRIORITY;
552 }
553
554 void negate_output_levels(void)
555 {
556 int j;
557
558 for (j = 0; j < COUNT_INFO; j++)
559 info_levels[j] *= -1;
560
561 for (j = 0; j < COUNT_DEBUG; j++)
562 debug_levels[j] *= -1;
563 }
564
565 static void print_rsync_version(enum logcode f)
566 {
567 char *subprotocol = "";
568 char const *got_socketpair = "no ";
569 char const *have_inplace = "no ";
570 char const *hardlinks = "no ";
571 char const *prealloc = "no ";
572 char const *symtimes = "no ";
573 char const *acls = "no ";
574 char const *xattrs = "no ";
575 char const *links = "no ";
576 char const *iconv = "no ";
577 char const *ipv6 = "no ";
578 STRUCT_STAT *dumstat;
579
580 #if SUBPROTOCOL_VERSION != 0
581 if (asprintf(&subprotocol, ".PR%d", SUBPROTOCOL_VERSION) < 0)
582 out_of_memory("print_rsync_version");
583 #endif
584 #ifdef HAVE_SOCKETPAIR
585 got_socketpair = "";
586 #endif
587 #ifdef HAVE_FTRUNCATE
588 have_inplace = "";
589 #endif
590 #ifdef SUPPORT_HARD_LINKS
591 hardlinks = "";
592 #endif
593 #ifdef SUPPORT_PREALLOCATION
594 prealloc = "";
595 #endif
596 #ifdef SUPPORT_ACLS
597 acls = "";
598 #endif
599 #ifdef SUPPORT_XATTRS
600 xattrs = "";
601 #endif
602 #ifdef SUPPORT_LINKS
603 links = "";
604 #endif
605 #ifdef INET6
606 ipv6 = "";
607 #endif
608 #ifdef ICONV_OPTION
609 iconv = "";
610 #endif
611 #ifdef CAN_SET_SYMLINK_TIMES
612 symtimes = "";
613 #endif
614
615 rprintf(f, "%s version %s protocol version %d%s\n",
616 RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION, subprotocol);
617 rprintf(f, "Copyright (C) 1996-2019 by Andrew Tridgell, Wayne Davison, and others.\n");
618 rprintf(f, "Web site: http://rsync.samba.org/\n");
619 rprintf(f, "Capabilities:\n");
620 rprintf(f, " %d-bit files, %d-bit inums, %d-bit timestamps, %d-bit long ints,\n",
621 (int)(sizeof (OFF_T) * 8),
622 (int)(sizeof dumstat->st_ino * 8), /* Don't check ino_t! */
623 (int)(sizeof (time_t) * 8),
624 (int)(sizeof (int64) * 8));
625 rprintf(f, " %ssocketpairs, %shardlinks, %ssymlinks, %sIPv6, batchfiles, %sinplace,\n",
626 got_socketpair, hardlinks, links, ipv6, have_inplace);
627 rprintf(f, " %sappend, %sACLs, %sxattrs, %siconv, %ssymtimes, %sprealloc\n",
628 have_inplace, acls, xattrs, iconv, symtimes, prealloc);
629
630 #ifdef MAINTAINER_MODE
631 rprintf(f, "Panic Action: \"%s\"\n", get_panic_action());
632 #endif
633
634 #if SIZEOF_INT64 < 8
635 rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
636 #endif
637 if (sizeof (int64) != SIZEOF_INT64) {
638 rprintf(f,
639 "WARNING: size mismatch in SIZEOF_INT64 define (%d != %d)\n",
640 (int) SIZEOF_INT64, (int) sizeof (int64));
641 }
642
643 rprintf(f,"\n");
644 rprintf(f,"rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n");
645 rprintf(f,"are welcome to redistribute it under certain conditions. See the GNU\n");
646 rprintf(f,"General Public Licence for details.\n");
647 }
648
649
650 void usage(enum logcode F)
651 {
652 print_rsync_version(F);
653
654 rprintf(F,"\n");
655 rprintf(F,"rsync is a file transfer program capable of efficient remote update\n");
656 rprintf(F,"via a fast differencing algorithm.\n");
657
658 rprintf(F,"\n");
659 rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... DEST\n");
660 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
661 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
662 rprintf(F," or rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST\n");
663 rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC [DEST]\n");
664 rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
665 rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
666 rprintf(F,"The ':' usages connect via remote shell, while '::' & 'rsync://' usages connect\n");
667 rprintf(F,"to an rsync daemon, and require SRC or DEST to start with a module name.\n");
668 rprintf(F,"\n");
669 rprintf(F,"Options\n");
670 rprintf(F," -v, --verbose increase verbosity\n");
671 rprintf(F," --info=FLAGS fine-grained informational verbosity\n");
672 rprintf(F," --debug=FLAGS fine-grained debug verbosity\n");
673 rprintf(F," --msgs2stderr special output handling for debugging\n");
674 rprintf(F," -q, --quiet suppress non-error messages\n");
675 rprintf(F," --no-motd suppress daemon-mode MOTD (see manpage caveat)\n");
676 rprintf(F," -c, --checksum skip based on checksum, not mod-time & size\n");
677 rprintf(F," -a, --archive archive mode; equals -rlptgoD (no -H,-A,-X)\n");
678 rprintf(F," --no-OPTION turn off an implied OPTION (e.g. --no-D)\n");
679 rprintf(F," -r, --recursive recurse into directories\n");
680 rprintf(F," -R, --relative use relative path names\n");
681 rprintf(F," --no-implied-dirs don't send implied dirs with --relative\n");
682 rprintf(F," -b, --backup make backups (see --suffix & --backup-dir)\n");
683 rprintf(F," --backup-dir=DIR make backups into hierarchy based in DIR\n");
684 rprintf(F," --suffix=SUFFIX set backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX);
685 rprintf(F," -u, --update skip files that are newer on the receiver\n");
686 rprintf(F," --inplace update destination files in-place (SEE MAN PAGE)\n");
687 rprintf(F," --append append data onto shorter files\n");
688 rprintf(F," --append-verify like --append, but with old data in file checksum\n");
689 rprintf(F," -d, --dirs transfer directories without recursing\n");
690 rprintf(F," -l, --links copy symlinks as symlinks\n");
691 rprintf(F," -L, --copy-links transform symlink into referent file/dir\n");
692 rprintf(F," --copy-unsafe-links only \"unsafe\" symlinks are transformed\n");
693 rprintf(F," --safe-links ignore symlinks that point outside the source tree\n");
694 rprintf(F," --munge-links munge symlinks to make them safer (but unusable)\n");
695 rprintf(F," -k, --copy-dirlinks transform symlink to a dir into referent dir\n");
696 rprintf(F," -K, --keep-dirlinks treat symlinked dir on receiver as dir\n");
697 rprintf(F," -H, --hard-links preserve hard links\n");
698 rprintf(F," -p, --perms preserve permissions\n");
699 rprintf(F," -E, --executability preserve the file's executability\n");
700 rprintf(F," --chmod=CHMOD affect file and/or directory permissions\n");
701 #ifdef SUPPORT_ACLS
702 rprintf(F," -A, --acls preserve ACLs (implies --perms)\n");
703 #endif
704 #ifdef SUPPORT_XATTRS
705 rprintf(F," -X, --xattrs preserve extended attributes\n");
706 #endif
707 rprintf(F," -o, --owner preserve owner (super-user only)\n");
708 rprintf(F," -g, --group preserve group\n");
709 rprintf(F," --devices preserve device files (super-user only)\n");
710 rprintf(F," --specials preserve special files\n");
711 rprintf(F," -D same as --devices --specials\n");
712 rprintf(F," -t, --times preserve modification times\n");
713 rprintf(F," -O, --omit-dir-times omit directories from --times\n");
714 rprintf(F," -J, --omit-link-times omit symlinks from --times\n");
715 rprintf(F," --super receiver attempts super-user activities\n");
716 #ifdef SUPPORT_XATTRS
717 rprintf(F," --fake-super store/recover privileged attrs using xattrs\n");
718 #endif
719 rprintf(F," -S, --sparse turn sequences of nulls into sparse blocks\n");
720 #ifdef SUPPORT_PREALLOCATION
721 rprintf(F," --preallocate allocate dest files before writing them\n");
722 #else
723 rprintf(F," --preallocate pre-allocate dest files on remote receiver\n");
724 #endif
725 rprintf(F," --write-devices write to devices as files (implies --inplace)\n");
726 rprintf(F," -n, --dry-run perform a trial run with no changes made\n");
727 rprintf(F," -W, --whole-file copy files whole (without delta-xfer algorithm)\n");
728 rprintf(F," --checksum-choice=STR choose the checksum algorithms\n");
729 rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
730 rprintf(F," -B, --block-size=SIZE force a fixed checksum block-size\n");
731 rprintf(F," -e, --rsh=COMMAND specify the remote shell to use\n");
732 rprintf(F," --rsync-path=PROGRAM specify the rsync to run on the remote machine\n");
733 rprintf(F," --existing skip creating new files on receiver\n");
734 rprintf(F," --ignore-existing skip updating files that already exist on receiver\n");
735 rprintf(F," --remove-source-files sender removes synchronized files (non-dirs)\n");
736 rprintf(F," --del an alias for --delete-during\n");
737 rprintf(F," --delete delete extraneous files from destination dirs\n");
738 rprintf(F," --delete-before receiver deletes before transfer, not during\n");
739 rprintf(F," --delete-during receiver deletes during the transfer\n");
740 rprintf(F," --delete-delay find deletions during, delete after\n");
741 rprintf(F," --delete-after receiver deletes after transfer, not during\n");
742 rprintf(F," --delete-excluded also delete excluded files from destination dirs\n");
743 rprintf(F," --ignore-missing-args ignore missing source args without error\n");
744 rprintf(F," --delete-missing-args delete missing source args from destination\n");
745 rprintf(F," --ignore-errors delete even if there are I/O errors\n");
746 rprintf(F," --force force deletion of directories even if not empty\n");
747 rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
748 rprintf(F," --max-size=SIZE don't transfer any file larger than SIZE\n");
749 rprintf(F," --min-size=SIZE don't transfer any file smaller than SIZE\n");
750 rprintf(F," --partial keep partially transferred files\n");
751 rprintf(F," --partial-dir=DIR put a partially transferred file into DIR\n");
752 rprintf(F," --delay-updates put all updated files into place at transfer's end\n");
753 rprintf(F," -m, --prune-empty-dirs prune empty directory chains from the file-list\n");
754 rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
755 rprintf(F," --usermap=STRING custom username mapping\n");
756 rprintf(F," --groupmap=STRING custom groupname mapping\n");
757 rprintf(F," --chown=USER:GROUP simple username/groupname mapping\n");
758 rprintf(F," --timeout=SECONDS set I/O timeout in seconds\n");
759 rprintf(F," --contimeout=SECONDS set daemon connection timeout in seconds\n");
760 rprintf(F," -I, --ignore-times don't skip files that match in size and mod-time\n");
761 rprintf(F," -M, --remote-option=OPTION send OPTION to the remote side only\n");
762 rprintf(F," --size-only skip files that match in size\n");
763 rprintf(F," -@, --modify-window=NUM set the accuracy for mod-time comparisons\n");
764 rprintf(F," -T, --temp-dir=DIR create temporary files in directory DIR\n");
765 rprintf(F," -y, --fuzzy find similar file for basis if no dest file\n");
766 rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
767 rprintf(F," --copy-dest=DIR ... and include copies of unchanged files\n");
768 rprintf(F," --link-dest=DIR hardlink to files in DIR when unchanged\n");
769 rprintf(F," -z, --compress compress file data during the transfer\n");
770 rprintf(F," --compress-level=NUM explicitly set compression level\n");
771 rprintf(F," --skip-compress=LIST skip compressing files with a suffix in LIST\n");
772 rprintf(F," -C, --cvs-exclude auto-ignore files the same way CVS does\n");
773 rprintf(F," -f, --filter=RULE add a file-filtering RULE\n");
774 rprintf(F," -F same as --filter='dir-merge /.rsync-filter'\n");
775 rprintf(F," repeated: --filter='- .rsync-filter'\n");
776 rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
777 rprintf(F," --exclude-from=FILE read exclude patterns from FILE\n");
778 rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
779 rprintf(F," --include-from=FILE read include patterns from FILE\n");
780 rprintf(F," --files-from=FILE read list of source-file names from FILE\n");
781 rprintf(F," -0, --from0 all *-from/filter files are delimited by 0s\n");
782 rprintf(F," -s, --protect-args no space-splitting; only wildcard special-chars\n");
783 rprintf(F," --copy-as=USER[:GROUP] specify user & optional group for the copy\n");
784 rprintf(F," --address=ADDRESS bind address for outgoing socket to daemon\n");
785 rprintf(F," --port=PORT specify double-colon alternate port number\n");
786 rprintf(F," --sockopts=OPTIONS specify custom TCP options\n");
787 rprintf(F," --blocking-io use blocking I/O for the remote shell\n");
788 rprintf(F," --stats give some file-transfer stats\n");
789 rprintf(F," -8, --8-bit-output leave high-bit chars unescaped in output\n");
790 rprintf(F," -h, --human-readable output numbers in a human-readable format\n");
791 rprintf(F," --progress show progress during transfer\n");
792 rprintf(F," -P same as --partial --progress\n");
793 rprintf(F," -i, --itemize-changes output a change-summary for all updates\n");
794 rprintf(F," --out-format=FORMAT output updates using the specified FORMAT\n");
795 rprintf(F," --log-file=FILE log what we're doing to the specified FILE\n");
796 rprintf(F," --log-file-format=FMT log updates using the specified FMT\n");
797 rprintf(F," --password-file=FILE read daemon-access password from FILE\n");
798 rprintf(F," --list-only list the files instead of copying them\n");
799 rprintf(F," --bwlimit=RATE limit socket I/O bandwidth\n");
800 #ifdef HAVE_SETVBUF
801 rprintf(F," --outbuf=N|L|B set output buffering to None, Line, or Block\n");
802 #endif
803 rprintf(F," --write-batch=FILE write a batched update to FILE\n");
804 rprintf(F," --only-write-batch=FILE like --write-batch but w/o updating destination\n");
805 rprintf(F," --read-batch=FILE read a batched update from FILE\n");
806 rprintf(F," --protocol=NUM force an older protocol version to be used\n");
807 #ifdef ICONV_OPTION
808 rprintf(F," --iconv=CONVERT_SPEC request charset conversion of filenames\n");
809 #endif
810 rprintf(F," --checksum-seed=NUM set block/file checksum seed (advanced)\n");
811 rprintf(F," -4, --ipv4 prefer IPv4\n");
812 rprintf(F," -6, --ipv6 prefer IPv6\n");
813 rprintf(F," --version print version number\n");
814 rprintf(F,"(-h) --help show this help (-h is --help only if used alone)\n");
815
816 rprintf(F,"\n");
817 rprintf(F,"Use \"rsync --daemon --help\" to see the daemon-mode command-line options.\n");
818 rprintf(F,"Please see the rsync(1) and rsyncd.conf(5) man pages for full documentation.\n");
819 rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
820 }
821
822 enum {OPT_VERSION = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
823 OPT_FILTER, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST, OPT_HELP,
824 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW, OPT_MIN_SIZE, OPT_CHMOD,
825 OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_ONLY_WRITE_BATCH, OPT_MAX_SIZE,
826 OPT_NO_D, OPT_APPEND, OPT_NO_ICONV, OPT_INFO, OPT_DEBUG,
827 OPT_USERMAP, OPT_GROUPMAP, OPT_CHOWN, OPT_BWLIMIT,
828 OPT_SERVER, OPT_REFUSED_BASE = 9000};
829
830 static struct poptOption long_options[] = {
831 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
832 {"help", 0, POPT_ARG_NONE, 0, OPT_HELP, 0, 0 },
833 {"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0},
834 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
835 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
836 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
837 {"info", 0, POPT_ARG_STRING, 0, OPT_INFO, 0, 0 },
838 {"debug", 0, POPT_ARG_STRING, 0, OPT_DEBUG, 0, 0 },
839 {"msgs2stderr", 0, POPT_ARG_NONE, &msgs2stderr, 0, 0, 0 },
840 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
841 {"motd", 0, POPT_ARG_VAL, &output_motd, 1, 0, 0 },
842 {"no-motd", 0, POPT_ARG_VAL, &output_motd, 0, 0, 0 },
843 {"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
844 {"human-readable", 'h', POPT_ARG_NONE, 0, 'h', 0, 0},
845 {"no-human-readable",0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
846 {"no-h", 0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
847 {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
848 {"archive", 'a', POPT_ARG_NONE, 0, 'a', 0, 0 },
849 {"recursive", 'r', POPT_ARG_VAL, &recurse, 2, 0, 0 },
850 {"no-recursive", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
851 {"no-r", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
852 {"inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
853 {"no-inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
854 {"i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
855 {"no-i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
856 {"dirs", 'd', POPT_ARG_VAL, &xfer_dirs, 2, 0, 0 },
857 {"no-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
858 {"no-d", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
859 {"old-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
860 {"old-d", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
861 {"perms", 'p', POPT_ARG_VAL, &preserve_perms, 1, 0, 0 },
862 {"no-perms", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
863 {"no-p", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
864 {"executability", 'E', POPT_ARG_NONE, &preserve_executability, 0, 0, 0 },
865 {"acls", 'A', POPT_ARG_NONE, 0, 'A', 0, 0 },
866 {"no-acls", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
867 {"no-A", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
868 {"xattrs", 'X', POPT_ARG_NONE, 0, 'X', 0, 0 },
869 {"no-xattrs", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
870 {"no-X", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
871 {"times", 't', POPT_ARG_VAL, &preserve_times, 1, 0, 0 },
872 {"no-times", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 },
873 {"no-t", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 },
874 {"omit-dir-times", 'O', POPT_ARG_VAL, &omit_dir_times, 1, 0, 0 },
875 {"no-omit-dir-times",0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
876 {"no-O", 0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
877 {"omit-link-times", 'J', POPT_ARG_VAL, &omit_link_times, 1, 0, 0 },
878 {"no-omit-link-times",0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
879 {"no-J", 0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
880 {"modify-window", '@', POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
881 {"super", 0, POPT_ARG_VAL, &am_root, 2, 0, 0 },
882 {"no-super", 0, POPT_ARG_VAL, &am_root, 0, 0, 0 },
883 {"fake-super", 0, POPT_ARG_VAL, &am_root, -1, 0, 0 },
884 {"owner", 'o', POPT_ARG_VAL, &preserve_uid, 1, 0, 0 },
885 {"no-owner", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
886 {"no-o", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
887 {"group", 'g', POPT_ARG_VAL, &preserve_gid, 1, 0, 0 },
888 {"no-group", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
889 {"no-g", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
890 {0, 'D', POPT_ARG_NONE, 0, 'D', 0, 0 },
891 {"no-D", 0, POPT_ARG_NONE, 0, OPT_NO_D, 0, 0 },
892 {"devices", 0, POPT_ARG_VAL, &preserve_devices, 1, 0, 0 },
893 {"no-devices", 0, POPT_ARG_VAL, &preserve_devices, 0, 0, 0 },
894 {"write-devices", 0, POPT_ARG_VAL, &write_devices, 1, 0, 0 },
895 {"no-write-devices", 0, POPT_ARG_VAL, &write_devices, 0, 0, 0 },
896 {"specials", 0, POPT_ARG_VAL, &preserve_specials, 1, 0, 0 },
897 {"no-specials", 0, POPT_ARG_VAL, &preserve_specials, 0, 0, 0 },
898 {"links", 'l', POPT_ARG_VAL, &preserve_links, 1, 0, 0 },
899 {"no-links", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
900 {"no-l", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
901 {"copy-links", 'L', POPT_ARG_NONE, &copy_links, 0, 0, 0 },
902 {"copy-unsafe-links",0, POPT_ARG_NONE, &copy_unsafe_links, 0, 0, 0 },
903 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
904 {"munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 1, 0, 0 },
905 {"no-munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 0, 0, 0 },
906 {"copy-dirlinks", 'k', POPT_ARG_NONE, &copy_dirlinks, 0, 0, 0 },
907 {"keep-dirlinks", 'K', POPT_ARG_NONE, &keep_dirlinks, 0, 0, 0 },
908 {"hard-links", 'H', POPT_ARG_NONE, 0, 'H', 0, 0 },
909 {"no-hard-links", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
910 {"no-H", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
911 {"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 },
912 {"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
913 {"no-R", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
914 {"implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
915 {"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
916 {"i-d", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
917 {"no-i-d", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
918 {"chmod", 0, POPT_ARG_STRING, 0, OPT_CHMOD, 0, 0 },
919 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 },
920 {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 },
921 {"one-file-system", 'x', POPT_ARG_NONE, 0, 'x', 0, 0 },
922 {"no-one-file-system",0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
923 {"no-x", 0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
924 {"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 },
925 {"existing", 0, POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
926 {"ignore-non-existing",0,POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
927 {"ignore-existing", 0, POPT_ARG_NONE, &ignore_existing, 0, 0, 0 },
928 {"max-size", 0, POPT_ARG_STRING, &max_size_arg, OPT_MAX_SIZE, 0, 0 },
929 {"min-size", 0, POPT_ARG_STRING, &min_size_arg, OPT_MIN_SIZE, 0, 0 },
930 {"sparse", 'S', POPT_ARG_VAL, &sparse_files, 1, 0, 0 },
931 {"no-sparse", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
932 {"no-S", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
933 {"preallocate", 0, POPT_ARG_NONE, &preallocate_files, 0, 0, 0},
934 {"inplace", 0, POPT_ARG_VAL, &inplace, 1, 0, 0 },
935 {"no-inplace", 0, POPT_ARG_VAL, &inplace, 0, 0, 0 },
936 {"append", 0, POPT_ARG_NONE, 0, OPT_APPEND, 0, 0 },
937 {"append-verify", 0, POPT_ARG_VAL, &append_mode, 2, 0, 0 },
938 {"no-append", 0, POPT_ARG_VAL, &append_mode, 0, 0, 0 },
939 {"del", 0, POPT_ARG_NONE, &delete_during, 0, 0, 0 },
940 {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
941 {"delete-before", 0, POPT_ARG_NONE, &delete_before, 0, 0, 0 },
942 {"delete-during", 0, POPT_ARG_VAL, &delete_during, 1, 0, 0 },
943 {"delete-delay", 0, POPT_ARG_VAL, &delete_during, 2, 0, 0 },
944 {"delete-after", 0, POPT_ARG_NONE, &delete_after, 0, 0, 0 },
945 {"delete-excluded", 0, POPT_ARG_NONE, &delete_excluded, 0, 0, 0 },
946 {"delete-missing-args",0,POPT_BIT_SET, &missing_args, 2, 0, 0 },
947 {"ignore-missing-args",0,POPT_BIT_SET, &missing_args, 1, 0, 0 },
948 {"remove-sent-files",0, POPT_ARG_VAL, &remove_source_files, 2, 0, 0 }, /* deprecated */
949 {"remove-source-files",0,POPT_ARG_VAL, &remove_source_files, 1, 0, 0 },
950 {"force", 0, POPT_ARG_VAL, &force_delete, 1, 0, 0 },
951 {"no-force", 0, POPT_ARG_VAL, &force_delete, 0, 0, 0 },
952 {"ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 1, 0, 0 },
953 {"no-ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 0, 0, 0 },
954 {"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
955 {0, 'F', POPT_ARG_NONE, 0, 'F', 0, 0 },
956 {"filter", 'f', POPT_ARG_STRING, 0, OPT_FILTER, 0, 0 },
957 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
958 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
959 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
960 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
961 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
962 {"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
963 {"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
964 {"checksum-choice", 0, POPT_ARG_STRING, &checksum_choice, 0, 0, 0 },
965 {"no-W", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
966 {"checksum", 'c', POPT_ARG_VAL, &always_checksum, 1, 0, 0 },
967 {"no-checksum", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
968 {"no-c", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
969 {"block-size", 'B', POPT_ARG_LONG, &block_size, 0, 0, 0 },
970 {"compare-dest", 0, POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 },
971 {"copy-dest", 0, POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 },
972 {"link-dest", 0, POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 },
973 {"fuzzy", 'y', POPT_ARG_NONE, 0, 'y', 0, 0 },
974 {"no-fuzzy", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
975 {"no-y", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
976 {"compress", 'z', POPT_ARG_NONE, 0, 'z', 0, 0 },
977 {"old-compress", 0, POPT_ARG_VAL, &do_compression, 1, 0, 0 },
978 {"new-compress", 0, POPT_ARG_VAL, &do_compression, 2, 0, 0 },
979 {"no-compress", 0, POPT_ARG_VAL, &do_compression, 0, 0, 0 },
980 {"no-z", 0, POPT_ARG_VAL, &do_compression, 0, 0, 0 },
981 {"skip-compress", 0, POPT_ARG_STRING, &skip_compress, 0, 0, 0 },
982 {"compress-level", 0, POPT_ARG_INT, &def_compress_level, 0, 0, 0 },
983 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
984 {"progress", 0, POPT_ARG_VAL, &do_progress, 1, 0, 0 },
985 {"no-progress", 0, POPT_ARG_VAL, &do_progress, 0, 0, 0 },
986 {"partial", 0, POPT_ARG_VAL, &keep_partial, 1, 0, 0 },
987 {"no-partial", 0, POPT_ARG_VAL, &keep_partial, 0, 0, 0 },
988 {"partial-dir", 0, POPT_ARG_STRING, &partial_dir, 0, 0, 0 },
989 {"delay-updates", 0, POPT_ARG_VAL, &delay_updates, 1, 0, 0 },
990 {"no-delay-updates", 0, POPT_ARG_VAL, &delay_updates, 0, 0, 0 },
991 {"prune-empty-dirs",'m', POPT_ARG_VAL, &prune_empty_dirs, 1, 0, 0 },
992 {"no-prune-empty-dirs",0,POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
993 {"no-m", 0, POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
994 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
995 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
996 {"out-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 },
997 {"log-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 }, /* DEPRECATED */
998 {"itemize-changes", 'i', POPT_ARG_NONE, 0, 'i', 0, 0 },
999 {"no-itemize-changes",0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
1000 {"no-i", 0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
1001 {"bwlimit", 0, POPT_ARG_STRING, &bwlimit_arg, OPT_BWLIMIT, 0, 0 },
1002 {"no-bwlimit", 0, POPT_ARG_VAL, &bwlimit, 0, 0, 0 },
1003 {"backup", 'b', POPT_ARG_VAL, &make_backups, 1, 0, 0 },
1004 {"no-backup", 0, POPT_ARG_VAL, &make_backups, 0, 0, 0 },
1005 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
1006 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
1007 {"list-only", 0, POPT_ARG_VAL, &list_only, 2, 0, 0 },
1008 {"read-batch", 0, POPT_ARG_STRING, &batch_name, OPT_READ_BATCH, 0, 0 },
1009 {"write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_WRITE_BATCH, 0, 0 },
1010 {"only-write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_ONLY_WRITE_BATCH, 0, 0 },
1011 {"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
1012 {"from0", '0', POPT_ARG_VAL, &eol_nulls, 1, 0, 0},
1013 {"no-from0", 0, POPT_ARG_VAL, &eol_nulls, 0, 0, 0},
1014 {"protect-args", 's', POPT_ARG_VAL, &protect_args, 1, 0, 0},
1015 {"no-protect-args", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
1016 {"no-s", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
1017 {"numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 1, 0, 0 },
1018 {"no-numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 0, 0, 0 },
1019 {"usermap", 0, POPT_ARG_STRING, 0, OPT_USERMAP, 0, 0 },
1020 {"groupmap", 0, POPT_ARG_STRING, 0, OPT_GROUPMAP, 0, 0 },
1021 {"chown", 0, POPT_ARG_STRING, 0, OPT_CHOWN, 0, 0 },
1022 {"timeout", 0, POPT_ARG_INT, &io_timeout, 0, 0, 0 },
1023 {"no-timeout", 0, POPT_ARG_VAL, &io_timeout, 0, 0, 0 },
1024 {"contimeout", 0, POPT_ARG_INT, &connect_timeout, 0, 0, 0 },
1025 {"no-contimeout", 0, POPT_ARG_VAL, &connect_timeout, 0, 0, 0 },
1026 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
1027 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
1028 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
1029 #ifdef ICONV_OPTION
1030 {"iconv", 0, POPT_ARG_STRING, &iconv_opt, 0, 0, 0 },
1031 {"no-iconv", 0, POPT_ARG_NONE, 0, OPT_NO_ICONV, 0, 0 },
1032 #endif
1033 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
1034 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
1035 {"8-bit-output", '8', POPT_ARG_VAL, &allow_8bit_chars, 1, 0, 0 },
1036 {"no-8-bit-output", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
1037 {"no-8", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
1038 {"qsort", 0, POPT_ARG_NONE, &use_qsort, 0, 0, 0 },
1039 {"copy-as", 0, POPT_ARG_STRING, &copy_as, 0, 0, 0 },
1040 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
1041 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
1042 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
1043 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
1044 {"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
1045 {"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
1046 #ifdef HAVE_SETVBUF
1047 {"outbuf", 0, POPT_ARG_STRING, &outbuf_mode, 0, 0, 0 },
1048 #endif
1049 {"remote-option", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
1050 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
1051 {"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 },
1052 {"server", 0, POPT_ARG_NONE, 0, OPT_SERVER, 0, 0 },
1053 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
1054 /* All the following options switch us into daemon-mode option-parsing. */
1055 {"config", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
1056 {"daemon", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
1057 {"dparam", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
1058 {"detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
1059 {"no-detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
1060 {0,0,0,0, 0, 0, 0}
1061 };
1062
1063 static void daemon_usage(enum logcode F)
1064 {
1065 print_rsync_version(F);
1066
1067 rprintf(F,"\n");
1068 rprintf(F,"Usage: rsync --daemon [OPTION]...\n");
1069 rprintf(F," --address=ADDRESS bind to the specified address\n");
1070 rprintf(F," --bwlimit=RATE limit socket I/O bandwidth\n");
1071 rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
1072 rprintf(F," -M, --dparam=OVERRIDE override global daemon config parameter\n");
1073 rprintf(F," --no-detach do not detach from the parent\n");
1074 rprintf(F," --port=PORT listen on alternate port number\n");
1075 rprintf(F," --log-file=FILE override the \"log file\" setting\n");
1076 rprintf(F," --log-file-format=FMT override the \"log format\" setting\n");
1077 rprintf(F," --sockopts=OPTIONS specify custom TCP options\n");
1078 rprintf(F," -v, --verbose increase verbosity\n");
1079 rprintf(F," -4, --ipv4 prefer IPv4\n");
1080 rprintf(F," -6, --ipv6 prefer IPv6\n");
1081 rprintf(F," --help show this help screen\n");
1082
1083 rprintf(F,"\n");
1084 rprintf(F,"If you were not trying to invoke rsync as a daemon, avoid using any of the\n");
1085 rprintf(F,"daemon-specific rsync options. See also the rsyncd.conf(5) man page.\n");
1086 }
1087
1088 static struct poptOption long_daemon_options[] = {
1089 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
1090 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
1091 {"bwlimit", 0, POPT_ARG_INT, &daemon_bwlimit, 0, 0, 0 },
1092 {"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
1093 {"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
1094 {"dparam", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
1095 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
1096 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
1097 {"detach", 0, POPT_ARG_VAL, &no_detach, 0, 0, 0 },
1098 {"no-detach", 0, POPT_ARG_VAL, &no_detach, 1, 0, 0 },
1099 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
1100 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
1101 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
1102 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
1103 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
1104 {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
1105 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
1106 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
1107 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
1108 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
1109 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
1110 {0,0,0,0, 0, 0, 0}
1111 };
1112
1113
1114 static char err_buf[200];
1115
1116
1117 /**
1118 * Store the option error message, if any, so that we can log the
1119 * connection attempt (which requires parsing the options), and then
1120 * show the error later on.
1121 **/
1122 void option_error(void)
1123 {
1124 if (!err_buf[0]) {
1125 strlcpy(err_buf, "Error parsing options: option may "
1126 "be supported on client but not on server?\n",
1127 sizeof err_buf);
1128 }
1129
1130 rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
1131 msleep(20);
1132 }
1133
1134
1135 /**
1136 * Tweak the option table to disable all options that the rsyncd.conf
1137 * file has told us to refuse.
1138 **/
1139 static void set_refuse_options(char *bp)
1140 {
1141 struct poptOption *op;
1142 char *cp, shortname[2];
1143 int is_wild, found_match;
1144
1145 shortname[1] = '\0';
1146
1147 while (1) {
1148 while (*bp == ' ') bp++;
1149 if (!*bp)
1150 break;
1151 if ((cp = strchr(bp, ' ')) != NULL)
1152 *cp= '\0';
1153 is_wild = strpbrk(bp, "*?[") != NULL;
1154 found_match = 0;
1155 for (op = long_options; ; op++) {
1156 *shortname = op->shortName;
1157 if (!op->longName && !*shortname)
1158 break;
1159 if ((op->longName && wildmatch(bp, op->longName))
1160 || (*shortname && wildmatch(bp, shortname))) {
1161 if (op->argInfo == POPT_ARG_VAL)
1162 op->argInfo = POPT_ARG_NONE;
1163 op->val = (op - long_options) + OPT_REFUSED_BASE;
1164 found_match = 1;
1165 /* These flags are set to let us easily check
1166 * an implied option later in the code. */
1167 switch (*shortname) {
1168 case 'r': case 'd': case 'l': case 'p':
1169 case 't': case 'g': case 'o': case 'D':
1170 refused_archive_part = op->val;
1171 break;
1172 case 'z':
1173 refused_compress = op->val;
1174 break;
1175 case '\0':
1176 if (wildmatch("delete", op->longName))
1177 refused_delete = op->val;
1178 else if (wildmatch("delete-before", op->longName))
1179 refused_delete_before = op->val;
1180 else if (wildmatch("delete-during", op->longName))
1181 refused_delete_during = op->val;
1182 else if (wildmatch("partial", op->longName))
1183 refused_partial = op->val;
1184 else if (wildmatch("progress", op->longName))
1185 refused_progress = op->val;
1186 else if (wildmatch("inplace", op->longName))
1187 refused_inplace = op->val;
1188 else if (wildmatch("no-iconv", op->longName))
1189 refused_no_iconv = op->val;
1190 break;
1191 }
1192 if (!is_wild)
1193 break;
1194 }
1195 }
1196 if (!found_match) {
1197 rprintf(FLOG, "No match for refuse-options string \"%s\"\n",
1198 bp);
1199 }
1200 if (!cp)
1201 break;
1202 *cp = ' ';
1203 bp = cp + 1;
1204 }
1205 }
1206
1207
1208 static int count_args(const char **argv)
1209 {
1210 int i = 0;
1211
1212 if (argv) {
1213 while (argv[i] != NULL)
1214 i++;
1215 }
1216
1217 return i;
1218 }
1219
1220
1221 static OFF_T parse_size_arg(char **size_arg, char def_suf)
1222 {
1223 int reps, mult, make_compatible = 0;
1224 const char *arg;
1225 OFF_T size = 1;
1226
1227 for (arg = *size_arg; isDigit(arg); arg++) {}
1228 if (*arg == '.')
1229 for (arg++; isDigit(arg); arg++) {}
1230 switch (*arg && *arg != '+' && *arg != '-' ? *arg++ : def_suf) {
1231 case 'b': case 'B':
1232 reps = 0;
1233 break;
1234 case 'k': case 'K':
1235 reps = 1;
1236 break;
1237 case 'm': case 'M':
1238 reps = 2;
1239 break;
1240 case 'g': case 'G':
1241 reps = 3;
1242 break;
1243 default:
1244 return -1;
1245 }
1246 if (*arg == 'b' || *arg == 'B')
1247 mult = 1000, make_compatible = 1, arg++;
1248 else if (!*arg || *arg == '+' || *arg == '-')
1249 mult = 1024;
1250 else if (strncasecmp(arg, "ib", 2) == 0)
1251 mult = 1024, arg += 2;
1252 else
1253 return -1;
1254 while (reps--)
1255 size *= mult;
1256 size *= atof(*size_arg);
1257 if ((*arg == '+' || *arg == '-') && arg[1] == '1')
1258 size += atoi(arg), make_compatible = 1, arg += 2;
1259 if (*arg)
1260 return -1;
1261 if (size > 0 && make_compatible && def_suf == 'b') {
1262 /* We convert this manually because we may need %lld precision,
1263 * and that's not a portable sprintf() escape. */
1264 char buf[128], *s = buf + sizeof buf - 1;
1265 OFF_T num = size;
1266 *s = '\0';
1267 while (num) {
1268 *--s = (char)(num % 10) + '0';
1269 num /= 10;
1270 }
1271 if (!(*size_arg = strdup(s)))
1272 out_of_memory("parse_size_arg");
1273 }
1274 return size;
1275 }
1276
1277
1278 static void create_refuse_error(int which)
1279 {
1280 /* The "which" value is the index + OPT_REFUSED_BASE. */
1281 struct poptOption *op = &long_options[which - OPT_REFUSED_BASE];
1282 int n = snprintf(err_buf, sizeof err_buf,
1283 "The server is configured to refuse --%s\n",
1284 op->longName) - 1;
1285 if (op->shortName) {
1286 snprintf(err_buf + n, sizeof err_buf - n,
1287 " (-%c)\n", op->shortName);
1288 }
1289 }
1290
1291 /* This is used to make sure that --daemon & --server cannot be aliased to
1292 * something else. These options have always disabled popt aliases for the
1293 * parsing of a daemon or server command-line, but we have to make sure that
1294 * these options cannot vanish so that the alias disabling can take effect. */
1295 static void popt_unalias(poptContext con, const char *opt)
1296 {
1297 struct poptAlias unalias;
1298
1299 unalias.longName = opt + 2; /* point past the leading "--" */
1300 unalias.shortName = '\0';
1301 unalias.argc = 1;
1302 unalias.argv = new_array(const char*, 1);
1303 unalias.argv[0] = strdup(opt);
1304
1305 poptAddAlias(con, unalias, 0);
1306 }
1307
1308 /**
1309 * Process command line arguments. Called on both local and remote.
1310 *
1311 * @retval 1 if all options are OK; with globals set to appropriate
1312 * values
1313 *
1314 * @retval 0 on error, with err_buf containing an explanation
1315 **/
1316 int parse_arguments(int *argc_p, const char ***argv_p)
1317 {
1318 static poptContext pc;
1319 char *ref = lp_refuse_options(module_id);
1320 const char *arg, **argv = *argv_p;
1321 int argc = *argc_p;
1322 int opt;
1323 int orig_protect_args = protect_args;
1324
1325 if (argc == 0) {
1326 strlcpy(err_buf, "argc is zero!\n", sizeof err_buf);
1327 return 0;
1328 }
1329 if (ref && *ref)
1330 set_refuse_options(ref);
1331 if (am_daemon) {
1332 set_refuse_options("log-file*");
1333 #ifdef ICONV_OPTION
1334 if (!*lp_charset(module_id))
1335 set_refuse_options("iconv");
1336 #endif
1337 set_refuse_options("write-devices");
1338 }
1339
1340 #ifdef ICONV_OPTION
1341 if (!am_daemon && protect_args <= 0 && (arg = getenv("RSYNC_ICONV")) != NULL && *arg)
1342 iconv_opt = strdup(arg);
1343 #endif
1344
1345 /* TODO: Call poptReadDefaultConfig; handle errors. */
1346
1347 /* The context leaks in case of an error, but if there's a
1348 * problem we always exit anyhow. */
1349 if (pc)
1350 poptFreeContext(pc);
1351 pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
1352 if (!am_server) {
1353 poptReadDefaultConfig(pc, 0);
1354 popt_unalias(pc, "--daemon");
1355 popt_unalias(pc, "--server");
1356 }
1357
1358 while ((opt = poptGetNextOpt(pc)) != -1) {
1359 /* most options are handled automatically by popt;
1360 * only special cases are returned and listed here. */
1361
1362 switch (opt) {
1363 case OPT_VERSION:
1364 print_rsync_version(FINFO);
1365 exit_cleanup(0);
1366
1367 case OPT_SERVER:
1368 if (!am_server) {
1369 /* Disable popt aliases on the server side and
1370 * then start parsing the options again. */
1371 poptFreeContext(pc);
1372 pc = poptGetContext(RSYNC_NAME, argc, argv,
1373 long_options, 0);
1374 am_server = 1;
1375 }
1376 #ifdef ICONV_OPTION
1377 iconv_opt = NULL;
1378 #endif
1379 break;
1380
1381 case OPT_SENDER:
1382 if (!am_server) {
1383 usage(FERROR);
1384 exit_cleanup(RERR_SYNTAX);
1385 }
1386 am_sender = 1;
1387 break;
1388
1389 case OPT_DAEMON:
1390 if (am_daemon) {
1391 strlcpy(err_buf,
1392 "Attempt to hack rsync thwarted!\n",
1393 sizeof err_buf);
1394 return 0;
1395 }
1396 #ifdef ICONV_OPTION
1397 iconv_opt = NULL;
1398 #endif
1399 protect_args = 0;
1400 poptFreeContext(pc);
1401 pc = poptGetContext(RSYNC_NAME, argc, argv,
1402 long_daemon_options, 0);
1403 while ((opt = poptGetNextOpt(pc)) != -1) {
1404 char **cpp;
1405 switch (opt) {
1406 case 'h':
1407 daemon_usage(FINFO);
1408 exit_cleanup(0);
1409
1410 case 'M':
1411 arg = poptGetOptArg(pc);
1412 if (!strchr(arg, '=')) {
1413 rprintf(FERROR,
1414 "--dparam value is missing an '=': %s\n",
1415 arg);
1416 goto daemon_error;
1417 }
1418 cpp = EXPAND_ITEM_LIST(&dparam_list, char *, 4);
1419 *cpp = strdup(arg);
1420 break;
1421
1422 case 'v':
1423 verbose++;
1424 break;
1425
1426 default:
1427 rprintf(FERROR,
1428 "rsync: %s: %s (in daemon mode)\n",
1429 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1430 poptStrerror(opt));
1431 goto daemon_error;
1432 }
1433 }
1434
1435 if (dparam_list.count && !set_dparams(1))
1436 exit_cleanup(RERR_SYNTAX);
1437
1438 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
1439 snprintf(err_buf, sizeof err_buf,
1440 "the --temp-dir path is WAY too long.\n");
1441 return 0;
1442 }
1443
1444 if (!daemon_opt) {
1445 rprintf(FERROR, "Daemon option(s) used without --daemon.\n");
1446 daemon_error:
1447 rprintf(FERROR,
1448 "(Type \"rsync --daemon --help\" for assistance with daemon mode.)\n");
1449 exit_cleanup(RERR_SYNTAX);
1450 }
1451
1452 *argv_p = argv = poptGetArgs(pc);
1453 *argc_p = argc = count_args(argv);
1454 am_starting_up = 0;
1455 daemon_opt = 0;
1456 am_daemon = 1;
1457 return 1;
1458
1459 case OPT_MODIFY_WINDOW:
1460 /* The value has already been set by popt, but
1461 * we need to remember that we're using a
1462 * non-default setting. */
1463 modify_window_set = 1;
1464 break;
1465
1466 case OPT_FILTER:
1467 parse_filter_str(&filter_list, poptGetOptArg(pc),
1468 rule_template(0), 0);
1469 break;
1470
1471 case OPT_EXCLUDE:
1472 parse_filter_str(&filter_list, poptGetOptArg(pc),
1473 rule_template(0), XFLG_OLD_PREFIXES);
1474 break;
1475
1476 case OPT_INCLUDE:
1477 parse_filter_str(&filter_list, poptGetOptArg(pc),
1478 rule_template(FILTRULE_INCLUDE), XFLG_OLD_PREFIXES);
1479 break;
1480
1481 case OPT_EXCLUDE_FROM:
1482 case OPT_INCLUDE_FROM:
1483 arg = poptGetOptArg(pc);
1484 if (sanitize_paths)
1485 arg = sanitize_path(NULL, arg, NULL, 0, SP_DEFAULT);
1486 if (daemon_filter_list.head) {
1487 int rej;
1488 char *cp = strdup(arg);
1489 if (!cp)
1490 out_of_memory("parse_arguments");
1491 if (!*cp)
1492 rej = 1;
1493 else {
1494 char *dir = cp + (*cp == '/' ? module_dirlen : 0);
1495 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
1496 rej = check_filter(&daemon_filter_list, FLOG, dir, 0) < 0;
1497 }
1498 free(cp);
1499 if (rej)
1500 goto options_rejected;
1501 }
1502 parse_filter_file(&filter_list, arg,
1503 rule_template(opt == OPT_INCLUDE_FROM ? FILTRULE_INCLUDE : 0),
1504 XFLG_FATAL_ERRORS | XFLG_OLD_PREFIXES);
1505 break;
1506
1507 case 'a':
1508 if (refused_archive_part) {
1509 create_refuse_error(refused_archive_part);
1510 return 0;
1511 }
1512 if (!recurse) /* preserve recurse == 2 */
1513 recurse = 1;
1514 #ifdef SUPPORT_LINKS
1515 preserve_links = 1;
1516 #endif
1517 preserve_perms = 1;
1518 preserve_times = 1;
1519 preserve_gid = 1;
1520 preserve_uid = 1;
1521 preserve_devices = 1;
1522 preserve_specials = 1;
1523 break;
1524
1525 case 'D':
1526 preserve_devices = preserve_specials = 1;
1527 break;
1528
1529 case OPT_NO_D:
1530 preserve_devices = preserve_specials = 0;
1531 break;
1532
1533 case 'h':
1534 human_readable++;
1535 break;
1536
1537 case 'H':
1538 preserve_hard_links++;
1539 break;
1540
1541 case 'i':
1542 itemize_changes++;
1543 break;
1544
1545 case 'v':
1546 verbose++;
1547 break;
1548
1549 case 'y':
1550 fuzzy_basis++;
1551 break;
1552
1553 case 'q':
1554 quiet++;
1555 break;
1556
1557 case 'x':
1558 one_file_system++;
1559 break;
1560
1561 case 'F':
1562 switch (++F_option_cnt) {
1563 case 1:
1564 parse_filter_str(&filter_list,": /.rsync-filter",rule_template(0),0);
1565 break;
1566 case 2:
1567 parse_filter_str(&filter_list,"- .rsync-filter",rule_template(0),0);
1568 break;
1569 }
1570 break;
1571
1572 case 'P':
1573 if (refused_partial || refused_progress) {
1574 create_refuse_error(refused_partial
1575 ? refused_partial : refused_progress);
1576 return 0;
1577 }
1578 do_progress = 1;
1579 keep_partial = 1;
1580 break;
1581
1582 case 'z':
1583 do_compression++;
1584 break;
1585
1586 case 'M':
1587 arg = poptGetOptArg(pc);
1588 if (*arg != '-') {
1589 snprintf(err_buf, sizeof err_buf,
1590 "Remote option must start with a dash: %s\n", arg);
1591 return 0;
1592 }
1593 if (remote_option_cnt+2 >= remote_option_alloc) {
1594 remote_option_alloc += 16;
1595 remote_options = realloc_array(remote_options,
1596 const char *, remote_option_alloc);
1597 if (!remote_options)
1598 out_of_memory("parse_arguments");
1599 if (!remote_option_cnt)
1600 remote_options[0] = "ARG0";
1601 }
1602 remote_options[++remote_option_cnt] = arg;
1603 remote_options[remote_option_cnt+1] = NULL;
1604 break;
1605
1606 case OPT_WRITE_BATCH:
1607 /* batch_name is already set */
1608 write_batch = 1;
1609 break;
1610
1611 case OPT_ONLY_WRITE_BATCH:
1612 /* batch_name is already set */
1613 write_batch = -1;
1614 break;
1615
1616 case OPT_READ_BATCH:
1617 /* batch_name is already set */
1618 read_batch = 1;
1619 break;
1620
1621 case OPT_NO_ICONV:
1622 #ifdef ICONV_OPTION
1623 iconv_opt = NULL;
1624 #endif
1625 break;
1626
1627 case OPT_MAX_SIZE:
1628 if ((max_size = parse_size_arg(&max_size_arg, 'b')) < 0) {
1629 snprintf(err_buf, sizeof err_buf,
1630 "--max-size value is invalid: %s\n",
1631 max_size_arg);
1632 return 0;
1633 }
1634 break;
1635
1636 case OPT_MIN_SIZE:
1637 if ((min_size = parse_size_arg(&min_size_arg, 'b')) < 0) {
1638 snprintf(err_buf, sizeof err_buf,
1639 "--min-size value is invalid: %s\n",
1640 min_size_arg);
1641 return 0;
1642 }
1643 break;
1644
1645 case OPT_BWLIMIT:
1646 {
1647 OFF_T limit = parse_size_arg(&bwlimit_arg, 'K');
1648 if (limit < 0) {
1649 snprintf(err_buf, sizeof err_buf,
1650 "--bwlimit value is invalid: %s\n", bwlimit_arg);
1651 return 0;
1652 }
1653 bwlimit = (limit + 512) / 1024;
1654 if (limit && !bwlimit) {
1655 snprintf(err_buf, sizeof err_buf,
1656 "--bwlimit value is too small: %s\n", bwlimit_arg);
1657 return 0;
1658 }
1659 }
1660 break;
1661
1662 case OPT_APPEND:
1663 if (am_server)
1664 append_mode++;
1665 else
1666 append_mode = 1;
1667 break;
1668
1669 case OPT_LINK_DEST:
1670 #ifdef SUPPORT_HARD_LINKS
1671 link_dest = 1;
1672 dest_option = "--link-dest";
1673 goto set_dest_dir;
1674 #else
1675 snprintf(err_buf, sizeof err_buf,
1676 "hard links are not supported on this %s\n",
1677 am_server ? "server" : "client");
1678 return 0;
1679 #endif
1680
1681 case OPT_COPY_DEST:
1682 copy_dest = 1;
1683 dest_option = "--copy-dest";
1684 goto set_dest_dir;
1685
1686 case OPT_COMPARE_DEST:
1687 compare_dest = 1;
1688 dest_option = "--compare-dest";
1689 set_dest_dir:
1690 if (basis_dir_cnt >= MAX_BASIS_DIRS) {
1691 snprintf(err_buf, sizeof err_buf,
1692 "ERROR: at most %d %s args may be specified\n",
1693 MAX_BASIS_DIRS, dest_option);
1694 return 0;
1695 }
1696 /* We defer sanitizing this arg until we know what
1697 * our destination directory is going to be. */
1698 basis_dir[basis_dir_cnt++] = (char *)poptGetOptArg(pc);
1699 break;
1700
1701 case OPT_CHMOD:
1702 arg = poptGetOptArg(pc);
1703 if (!parse_chmod(arg, &chmod_modes)) {
1704 snprintf(err_buf, sizeof err_buf,
1705 "Invalid argument passed to --chmod (%s)\n",
1706 arg);
1707 return 0;
1708 }
1709 break;
1710
1711 case OPT_INFO:
1712 arg = poptGetOptArg(pc);
1713 parse_output_words(info_words, info_levels, arg, USER_PRIORITY);
1714 break;
1715
1716 case OPT_DEBUG:
1717 arg = poptGetOptArg(pc);
1718 parse_output_words(debug_words, debug_levels, arg, USER_PRIORITY);
1719 break;
1720
1721 case OPT_USERMAP:
1722 if (usermap) {
1723 if (usermap_via_chown) {
1724 snprintf(err_buf, sizeof err_buf,
1725 "--usermap conflicts with prior --chown.\n");
1726 return 0;
1727 }
1728 snprintf(err_buf, sizeof err_buf,
1729 "You can only specify --usermap once.\n");
1730 return 0;
1731 }
1732 usermap = (char *)poptGetOptArg(pc);
1733 usermap_via_chown = False;
1734 break;
1735
1736 case OPT_GROUPMAP:
1737 if (groupmap) {
1738 if (groupmap_via_chown) {
1739 snprintf(err_buf, sizeof err_buf,
1740 "--groupmap conflicts with prior --chown.\n");
1741 return 0;
1742 }
1743 snprintf(err_buf, sizeof err_buf,
1744 "You can only specify --groupmap once.\n");
1745 return 0;
1746 }
1747 groupmap = (char *)poptGetOptArg(pc);
1748 groupmap_via_chown = False;
1749 break;
1750
1751 case OPT_CHOWN: {
1752 const char *chown = poptGetOptArg(pc);
1753 int len;
1754 if ((arg = strchr(chown, ':')) != NULL)
1755 len = arg++ - chown;
1756 else
1757 len = strlen(chown);
1758 if (len) {
1759 if (usermap) {
1760 if (!usermap_via_chown) {
1761 snprintf(err_buf, sizeof err_buf,
1762 "--chown conflicts with prior --usermap.\n");
1763 return 0;
1764 }
1765 snprintf(err_buf, sizeof err_buf,
1766 "You can only specify a user-affecting --chown once.\n");
1767 return 0;
1768 }
1769 if (asprintf(&usermap, "*:%.*s", len, chown) < 0)
1770 out_of_memory("parse_arguments");
1771 usermap_via_chown = True;
1772 }
1773 if (arg && *arg) {
1774 if (groupmap) {
1775 if (!groupmap_via_chown) {
1776 snprintf(err_buf, sizeof err_buf,
1777 "--chown conflicts with prior --groupmap.\n");
1778 return 0;
1779 }
1780 snprintf(err_buf, sizeof err_buf,
1781 "You can only specify a group-affecting --chown once.\n");
1782 return 0;
1783 }
1784 if (asprintf(&groupmap, "*:%s", arg) < 0)
1785 out_of_memory("parse_arguments");
1786 groupmap_via_chown = True;
1787 }
1788 break;
1789 }
1790
1791 case OPT_HELP:
1792 usage(FINFO);
1793 exit_cleanup(0);
1794
1795 case 'A':
1796 #ifdef SUPPORT_ACLS
1797 preserve_acls = 1;
1798 preserve_perms = 1;
1799 break;
1800 #else
1801 /* FIXME: this should probably be ignored with a
1802 * warning and then countermeasures taken to
1803 * restrict group and other access in the presence
1804 * of any more restrictive ACLs, but this is safe
1805 * for now */
1806 snprintf(err_buf,sizeof(err_buf),
1807 "ACLs are not supported on this %s\n",
1808 am_server ? "server" : "client");
1809 return 0;
1810 #endif
1811
1812 case 'X':
1813 #ifdef SUPPORT_XATTRS
1814 preserve_xattrs++;
1815 break;
1816 #else
1817 snprintf(err_buf,sizeof(err_buf),
1818 "extended attributes are not supported on this %s\n",
1819 am_server ? "server" : "client");
1820 return 0;
1821 #endif
1822
1823 default:
1824 /* A large opt value means that set_refuse_options()
1825 * turned this option off. */
1826 if (opt >= OPT_REFUSED_BASE) {
1827 create_refuse_error(opt);
1828 return 0;
1829 }
1830 snprintf(err_buf, sizeof err_buf, "%s%s: %s\n",
1831 am_server ? "on remote machine: " : "",
1832 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1833 poptStrerror(opt));
1834 return 0;
1835 }
1836 }
1837
1838 if (protect_args < 0) {
1839 if (am_server)
1840 protect_args = 0;
1841 else if ((arg = getenv("RSYNC_PROTECT_ARGS")) != NULL && *arg)
1842 protect_args = atoi(arg) ? 1 : 0;
1843 else {
1844 #ifdef RSYNC_USE_PROTECTED_ARGS
1845 protect_args = 1;
1846 #else
1847 protect_args = 0;
1848 #endif
1849 }
1850 }
1851
1852 if (checksum_choice && strcmp(checksum_choice, "auto") != 0 && strcmp(checksum_choice, "auto,auto") != 0) {
1853 /* Call this early to verify the args and figure out if we need to force
1854 * --whole-file. Note that the parse function will get called again later,
1855 * just in case an "auto" choice needs to know the protocol_version. */
1856 if (parse_checksum_choice())
1857 whole_file = 1;
1858 } else
1859 checksum_choice = NULL;
1860
1861 if (human_readable > 1 && argc == 2 && !am_server) {
1862 /* Allow the old meaning of 'h' (--help) on its own. */
1863 usage(FINFO);
1864 exit_cleanup(0);
1865 }
1866
1867 if (do_compression || def_compress_level != NOT_SPECIFIED) {
1868 if (def_compress_level == NOT_SPECIFIED)
1869 def_compress_level = Z_DEFAULT_COMPRESSION;
1870 else if (def_compress_level < Z_DEFAULT_COMPRESSION || def_compress_level > Z_BEST_COMPRESSION) {
1871 snprintf(err_buf, sizeof err_buf, "--compress-level value is invalid: %d\n",
1872 def_compress_level);
1873 return 0;
1874 } else if (def_compress_level == Z_NO_COMPRESSION)
1875 do_compression = 0;
1876 else if (!do_compression)
1877 do_compression = 1;
1878 if (do_compression && refused_compress) {
1879 create_refuse_error(refused_compress);
1880 return 0;
1881 }
1882 #ifdef EXTERNAL_ZLIB
1883 if (do_compression == 1) {
1884 snprintf(err_buf, sizeof err_buf,
1885 "This rsync lacks old-style --compress due to its external zlib. Try -zz.\n");
1886 if (am_server)
1887 return 0;
1888 fprintf(stderr, "%s" "Continuing without compression.\n\n", err_buf);
1889 do_compression = 0;
1890 }
1891 #endif
1892 }
1893
1894 #ifdef HAVE_SETVBUF
1895 if (outbuf_mode && !am_server) {
1896 int mode = *(uchar *)outbuf_mode;
1897 if (islower(mode))
1898 mode = toupper(mode);
1899 fflush(stdout); /* Just in case... */
1900 switch (mode) {
1901 case 'N': /* None */
1902 case 'U': /* Unbuffered */
1903 mode = _IONBF;
1904 break;
1905 case 'L': /* Line */
1906 mode = _IOLBF;
1907 break;
1908 case 'B': /* Block */
1909 case 'F': /* Full */
1910 mode = _IOFBF;
1911 break;
1912 default:
1913 snprintf(err_buf, sizeof err_buf,
1914 "Invalid --outbuf setting -- specify N, L, or B.\n");
1915 return 0;
1916 }
1917 setvbuf(stdout, (char *)NULL, mode, 0);
1918 }
1919
1920 if (msgs2stderr) {
1921 /* Make stderr line buffered for better sharing of the stream. */
1922 fflush(stderr); /* Just in case... */
1923 setvbuf(stderr, (char *)NULL, _IOLBF, 0);
1924 }
1925 #endif
1926
1927 set_output_verbosity(verbose, DEFAULT_PRIORITY);
1928
1929 if (do_stats) {
1930 parse_output_words(info_words, info_levels,
1931 verbose > 1 ? "stats3" : "stats2", DEFAULT_PRIORITY);
1932 }
1933
1934 #ifdef ICONV_OPTION
1935 if (iconv_opt && protect_args != 2) {
1936 if (!am_server && strcmp(iconv_opt, "-") == 0)
1937 iconv_opt = NULL;
1938 else
1939 need_unsorted_flist = 1;
1940 }
1941 if (refused_no_iconv && !iconv_opt) {
1942 create_refuse_error(refused_no_iconv);
1943 return 0;
1944 }
1945 #endif
1946
1947 if (fuzzy_basis > 1)
1948 fuzzy_basis = basis_dir_cnt + 1;
1949
1950 /* Don't let the client reset protect_args if it was already processed */
1951 if (orig_protect_args == 2 && am_server)
1952 protect_args = orig_protect_args;
1953
1954 if (protect_args == 1 && am_server)
1955 return 1;
1956
1957 *argv_p = argv = poptGetArgs(pc);
1958 *argc_p = argc = count_args(argv);
1959
1960 #ifndef SUPPORT_LINKS
1961 if (preserve_links && !am_sender) {
1962 snprintf(err_buf, sizeof err_buf,
1963 "symlinks are not supported on this %s\n",
1964 am_server ? "server" : "client");
1965 return 0;
1966 }
1967 #endif
1968
1969 #ifndef SUPPORT_HARD_LINKS
1970 if (preserve_hard_links) {
1971 snprintf(err_buf, sizeof err_buf,
1972 "hard links are not supported on this %s\n",
1973 am_server ? "server" : "client");
1974 return 0;
1975 }
1976 #endif
1977
1978 #ifdef SUPPORT_XATTRS
1979 if (am_root < 0 && preserve_xattrs > 1) {
1980 snprintf(err_buf, sizeof err_buf,
1981 "--fake-super conflicts with -XX\n");
1982 return 0;
1983 }
1984 #else
1985 if (am_root < 0) {
1986 snprintf(err_buf, sizeof err_buf,
1987 "--fake-super requires an rsync with extended attributes enabled\n");
1988 return 0;
1989 }
1990 #endif
1991
1992 if (block_size) {
1993 /* We may not know the real protocol_version at this point if this is the client
1994 * option parsing, but we still want to check it so that the client can specify
1995 * a --protocol=29 option with a larger block size. */
1996 int32 max_blength = protocol_version < 30 ? OLD_MAX_BLOCK_SIZE : MAX_BLOCK_SIZE;
1997
1998 if (block_size > max_blength) {
1999 snprintf(err_buf, sizeof err_buf,
2000 "--block-size=%lu is too large (max: %u)\n", block_size, max_blength);
2001 return 0;
2002 }
2003 }
2004
2005 if (write_batch && read_batch) {
2006 snprintf(err_buf, sizeof err_buf,
2007 "--write-batch and --read-batch can not be used together\n");
2008 return 0;
2009 }
2010 if (write_batch > 0 || read_batch) {
2011 if (am_server) {
2012 rprintf(FINFO,
2013 "ignoring --%s-batch option sent to server\n",
2014 write_batch ? "write" : "read");
2015 /* We don't actually exit_cleanup(), so that we can
2016 * still service older version clients that still send
2017 * batch args to server. */
2018 read_batch = write_batch = 0;
2019 batch_name = NULL;
2020 } else if (dry_run)
2021 write_batch = 0;
2022 } else if (write_batch < 0 && dry_run)
2023 write_batch = 0;
2024 if (read_batch && files_from) {
2025 snprintf(err_buf, sizeof err_buf,
2026 "--read-batch cannot be used with --files-from\n");
2027 return 0;
2028 }
2029 if (read_batch && remove_source_files) {
2030 snprintf(err_buf, sizeof err_buf,
2031 "--read-batch cannot be used with --remove-%s-files\n",
2032 remove_source_files == 1 ? "source" : "sent");
2033 return 0;
2034 }
2035 if (batch_name && strlen(batch_name) > MAX_BATCH_NAME_LEN) {
2036 snprintf(err_buf, sizeof err_buf,
2037 "the batch-file name must be %d characters or less.\n",
2038 MAX_BATCH_NAME_LEN);
2039 return 0;
2040 }
2041
2042 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
2043 snprintf(err_buf, sizeof err_buf,
2044 "the --temp-dir path is WAY too long.\n");
2045 return 0;
2046 }
2047
2048 if (max_delete < 0 && max_delete != INT_MIN) {
2049 /* Negative numbers are treated as "no deletions". */
2050 max_delete = 0;
2051 }
2052
2053 if (compare_dest + copy_dest + link_dest > 1) {
2054 snprintf(err_buf, sizeof err_buf,
2055 "You may not mix --compare-dest, --copy-dest, and --link-dest.\n");
2056 return 0;
2057 }
2058
2059 if (files_from) {
2060 if (recurse == 1) /* preserve recurse == 2 */
2061 recurse = 0;
2062 if (xfer_dirs < 0)
2063 xfer_dirs = 1;
2064 }
2065
2066 if (argc < 2 && !read_batch && !am_server)
2067 list_only |= 1;
2068
2069 if (xfer_dirs >= 4) {
2070 parse_filter_str(&filter_list, "- /*/*", rule_template(0), 0);
2071 recurse = xfer_dirs = 1;
2072 } else if (recurse)
2073 xfer_dirs = 1;
2074 else if (xfer_dirs < 0)
2075 xfer_dirs = list_only ? 1 : 0;
2076
2077 if (relative_paths < 0)
2078 relative_paths = files_from? 1 : 0;
2079 if (!relative_paths)
2080 implied_dirs = 0;
2081
2082 if (delete_before + !!delete_during + delete_after > 1) {
2083 snprintf(err_buf, sizeof err_buf,
2084 "You may not combine multiple --delete-WHEN options.\n");
2085 return 0;
2086 }
2087 if (delete_before || delete_during || delete_after)
2088 delete_mode = 1;
2089 else if (delete_mode || delete_excluded) {
2090 /* Only choose now between before & during if one is refused. */
2091 if (refused_delete_before) {
2092 if (!refused_delete_during)
2093 delete_during = 1;
2094 else {
2095 create_refuse_error(refused_delete_before);
2096 return 0;
2097 }
2098 } else if (refused_delete_during)
2099 delete_before = 1;
2100 delete_mode = 1;
2101 }
2102 if (!xfer_dirs && delete_mode) {
2103 snprintf(err_buf, sizeof err_buf,
2104 "--delete does not work without --recursive (-r) or --dirs (-d).\n");
2105 return 0;
2106 }
2107
2108 if (missing_args == 3) /* simplify if both options were specified */
2109 missing_args = 2;
2110 if (refused_delete && (delete_mode || missing_args == 2)) {
2111 create_refuse_error(refused_delete);
2112 return 0;
2113 }
2114
2115 if (remove_source_files) {
2116 /* We only want to infer this refusal of --remove-source-files
2117 * via the refusal of "delete", not any of the "delete-FOO"
2118 * options. */
2119 if (refused_delete && am_sender) {
2120 create_refuse_error(refused_delete);
2121 return 0;
2122 }
2123 need_messages_from_generator = 1;
2124 }
2125
2126 if (munge_symlinks && !am_daemon) {
2127 STRUCT_STAT st;
2128 char prefix[SYMLINK_PREFIX_LEN]; /* NOT +1 ! */
2129 strlcpy(prefix, SYMLINK_PREFIX, sizeof prefix); /* trim the trailing slash */
2130 if (do_stat(prefix, &st) == 0 && S_ISDIR(st.st_mode)) {
2131 rprintf(FERROR, "Symlink munging is unsafe when a %s directory exists.\n",
2132 prefix);
2133 exit_cleanup(RERR_UNSUPPORTED);
2134 }
2135 }
2136
2137 if (sanitize_paths) {
2138 int i;
2139 for (i = argc; i-- > 0; )
2140 argv[i] = sanitize_path(NULL, argv[i], "", 0, SP_KEEP_DOT_DIRS);
2141 if (tmpdir)
2142 tmpdir = sanitize_path(NULL, tmpdir, NULL, 0, SP_DEFAULT);
2143 if (backup_dir)
2144 backup_dir = sanitize_path(NULL, backup_dir, NULL, 0, SP_DEFAULT);
2145 }
2146 if (daemon_filter_list.head && !am_sender) {
2147 filter_rule_list *elp = &daemon_filter_list;
2148 if (tmpdir) {
2149 char *dir;
2150 if (!*tmpdir)
2151 goto options_rejected;
2152 dir = tmpdir + (*tmpdir == '/' ? module_dirlen : 0);
2153 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2154 if (check_filter(elp, FLOG, dir, 1) < 0)
2155 goto options_rejected;
2156 }
2157 if (backup_dir) {
2158 char *dir;
2159 if (!*backup_dir)
2160 goto options_rejected;
2161 dir = backup_dir + (*backup_dir == '/' ? module_dirlen : 0);
2162 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2163 if (check_filter(elp, FLOG, dir, 1) < 0)
2164 goto options_rejected;
2165 }
2166 }
2167
2168 if (!backup_suffix)
2169 backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
2170 backup_suffix_len = strlen(backup_suffix);
2171 if (strchr(backup_suffix, '/') != NULL) {
2172 snprintf(err_buf, sizeof err_buf,
2173 "--suffix cannot contain slashes: %s\n",
2174 backup_suffix);
2175 return 0;
2176 }
2177 if (backup_dir) {
2178 size_t len;
2179 while (*backup_dir == '.' && backup_dir[1] == '/')
2180 backup_dir += 2;
2181 if (*backup_dir == '.' && backup_dir[1] == '\0')
2182 backup_dir++;
2183 len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
2184 if (len > sizeof backup_dir_buf - 128) {
2185 snprintf(err_buf, sizeof err_buf,
2186 "the --backup-dir path is WAY too long.\n");
2187 return 0;
2188 }
2189 backup_dir_len = (int)len;
2190 if (!backup_dir_len) {
2191 backup_dir_len = -1;
2192 backup_dir = NULL;
2193 } else if (backup_dir_buf[backup_dir_len - 1] != '/') {
2194 backup_dir_buf[backup_dir_len++] = '/';
2195 backup_dir_buf[backup_dir_len] = '\0';
2196 }
2197 backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
2198 }
2199 if (backup_dir) {
2200 /* No need for a suffix or a protect rule. */
2201 } else if (!backup_suffix_len && (!am_server || !am_sender)) {
2202 snprintf(err_buf, sizeof err_buf,
2203 "--suffix cannot be empty %s\n", backup_dir_len < 0
2204 ? "when --backup-dir is the same as the dest dir"
2205 : "without a --backup-dir");
2206 return 0;
2207 } else if (make_backups && delete_mode && !delete_excluded && !am_server) {
2208 snprintf(backup_dir_buf, sizeof backup_dir_buf,
2209 "P *%s", backup_suffix);
2210 parse_filter_str(&filter_list, backup_dir_buf, rule_template(0), 0);
2211 }
2212
2213 if (preserve_times) {
2214 preserve_times = PRESERVE_FILE_TIMES;
2215 if (!omit_dir_times)
2216 preserve_times |= PRESERVE_DIR_TIMES;
2217 #ifdef CAN_SET_SYMLINK_TIMES
2218 if (!omit_link_times)
2219 preserve_times |= PRESERVE_LINK_TIMES;
2220 #endif
2221 }
2222
2223 if (make_backups && !backup_dir) {
2224 omit_dir_times = 0; /* Implied, so avoid -O to sender. */
2225 preserve_times &= ~PRESERVE_DIR_TIMES;
2226 }
2227
2228 if (stdout_format) {
2229 if (am_server && log_format_has(stdout_format, 'I'))
2230 stdout_format_has_i = 2;
2231 else if (log_format_has(stdout_format, 'i'))
2232 stdout_format_has_i = itemize_changes | 1;
2233 if (!log_format_has(stdout_format, 'b')
2234 && !log_format_has(stdout_format, 'c')
2235 && !log_format_has(stdout_format, 'C'))
2236 log_before_transfer = !am_server;
2237 } else if (itemize_changes) {
2238 stdout_format = "%i %n%L";
2239 stdout_format_has_i = itemize_changes;
2240 log_before_transfer = !am_server;
2241 }
2242
2243 if (do_progress && !am_server) {
2244 if (!log_before_transfer && INFO_EQ(NAME, 0))
2245 parse_output_words(info_words, info_levels, "name", DEFAULT_PRIORITY);
2246 parse_output_words(info_words, info_levels, "flist2,progress", DEFAULT_PRIORITY);
2247 }
2248
2249 if (dry_run)
2250 do_xfers = 0;
2251
2252 set_io_timeout(io_timeout);
2253
2254 if (INFO_GTE(NAME, 1) && !stdout_format) {
2255 stdout_format = "%n%L";
2256 log_before_transfer = !am_server;
2257 }
2258 if (stdout_format_has_i || log_format_has(stdout_format, 'o'))
2259 stdout_format_has_o_or_i = 1;
2260
2261 if (logfile_name && !am_daemon) {
2262 if (!logfile_format) {
2263 logfile_format = "%i %n%L";
2264 logfile_format_has_i = logfile_format_has_o_or_i = 1;
2265 } else {
2266 if (log_format_has(logfile_format, 'i'))
2267 logfile_format_has_i = 1;
2268 if (logfile_format_has_i || log_format_has(logfile_format, 'o'))
2269 logfile_format_has_o_or_i = 1;
2270 }
2271 log_init(0);
2272 } else if (!am_daemon)
2273 logfile_format = NULL;
2274
2275 if (daemon_bwlimit && (!bwlimit || bwlimit > daemon_bwlimit))
2276 bwlimit = daemon_bwlimit;
2277 if (bwlimit) {
2278 bwlimit_writemax = (size_t)bwlimit * 128;
2279 if (bwlimit_writemax < 512)
2280 bwlimit_writemax = 512;
2281 }
2282
2283 if (append_mode) {
2284 if (whole_file > 0) {
2285 snprintf(err_buf, sizeof err_buf,
2286 "--append cannot be used with --whole-file\n");
2287 return 0;
2288 }
2289 if (refused_inplace) {
2290 create_refuse_error(refused_inplace);
2291 return 0;
2292 }
2293 inplace = 1;
2294 }
2295
2296 if (write_devices) {
2297 if (refused_inplace) {
2298 create_refuse_error(refused_inplace);
2299 return 0;
2300 }
2301 inplace = 1;
2302 }
2303
2304 if (delay_updates && !partial_dir)
2305 partial_dir = tmp_partialdir;
2306
2307 if (inplace) {
2308 #ifdef HAVE_FTRUNCATE
2309 if (partial_dir) {
2310 snprintf(err_buf, sizeof err_buf,
2311 "--%s cannot be used with --%s\n",
2312 append_mode ? "append" : "inplace",
2313 delay_updates ? "delay-updates" : "partial-dir");
2314 return 0;
2315 }
2316 /* --inplace implies --partial for refusal purposes, but we
2317 * clear the keep_partial flag for internal logic purposes. */
2318 if (refused_partial) {
2319 create_refuse_error(refused_partial);
2320 return 0;
2321 }
2322 keep_partial = 0;
2323 #else
2324 snprintf(err_buf, sizeof err_buf,
2325 "--%s is not supported on this %s\n",
2326 append_mode ? "append" : "inplace",
2327 am_server ? "server" : "client");
2328 return 0;
2329 #endif
2330 } else {
2331 if (keep_partial && !partial_dir && !am_server) {
2332 if ((arg = getenv("RSYNC_PARTIAL_DIR")) != NULL && *arg)
2333 partial_dir = strdup(arg);
2334 }
2335 if (partial_dir) {
2336 if (*partial_dir)
2337 clean_fname(partial_dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2338 if (!*partial_dir || strcmp(partial_dir, ".") == 0)
2339 partial_dir = NULL;
2340 if (!partial_dir && refused_partial) {
2341 create_refuse_error(refused_partial);
2342 return 0;
2343 }
2344 keep_partial = 1;
2345 }
2346 }
2347
2348 if (files_from) {
2349 char *h, *p;
2350 int q;
2351 if (argc > 2 || (!am_daemon && !am_server && argc == 1)) {
2352 usage(FERROR);
2353 exit_cleanup(RERR_SYNTAX);
2354 }
2355 if (strcmp(files_from, "-") == 0) {
2356 filesfrom_fd = 0;
2357 if (am_server)
2358 filesfrom_host = ""; /* reading from socket */
2359 } else if ((p = check_for_hostspec(files_from, &h, &q)) != 0) {
2360 if (am_server) {
2361 snprintf(err_buf, sizeof err_buf,
2362 "The --files-from sent to the server cannot specify a host.\n");
2363 return 0;
2364 }
2365 files_from = p;
2366 filesfrom_host = h;
2367 if (strcmp(files_from, "-") == 0) {
2368 snprintf(err_buf, sizeof err_buf,
2369 "Invalid --files-from remote filename\n");
2370 return 0;
2371 }
2372 } else {
2373 if (sanitize_paths)
2374 files_from = sanitize_path(NULL, files_from, NULL, 0, SP_DEFAULT);
2375 if (daemon_filter_list.head) {
2376 char *dir;
2377 if (!*files_from)
2378 goto options_rejected;
2379 dir = files_from + (*files_from == '/' ? module_dirlen : 0);
2380 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2381 if (check_filter(&daemon_filter_list, FLOG, dir, 0) < 0)
2382 goto options_rejected;
2383 }
2384 filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
2385 if (filesfrom_fd < 0) {
2386 snprintf(err_buf, sizeof err_buf,
2387 "failed to open files-from file %s: %s\n",
2388 files_from, strerror(errno));
2389 return 0;
2390 }
2391 }
2392 }
2393
2394 am_starting_up = 0;
2395
2396 return 1;
2397
2398 options_rejected:
2399 snprintf(err_buf, sizeof err_buf,
2400 "Your options have been rejected by the server.\n");
2401 return 0;
2402 }
2403
2404
2405 /**
2406 * Construct a filtered list of options to pass through from the
2407 * client to the server.
2408 *
2409 * This involves setting options that will tell the server how to
2410 * behave, and also filtering out options that are processed only
2411 * locally.
2412 **/
2413 void server_options(char **args, int *argc_p)
2414 {
2415 static char argstr[64];
2416 int ac = *argc_p;
2417 uchar where;
2418 char *arg;
2419 int i, x;
2420
2421 /* This should always remain first on the server's command-line. */
2422 args[ac++] = "--server";
2423
2424 if (daemon_over_rsh > 0) {
2425 args[ac++] = "--daemon";
2426 *argc_p = ac;
2427 /* if we're passing --daemon, we're done */
2428 return;
2429 }
2430
2431 if (!am_sender)
2432 args[ac++] = "--sender";
2433
2434 x = 1;
2435 argstr[0] = '-';
2436
2437 if (protect_args)
2438 argstr[x++] = 's';
2439
2440 for (i = 0; i < verbose; i++)
2441 argstr[x++] = 'v';
2442
2443 /* the -q option is intentionally left out */
2444 if (make_backups)
2445 argstr[x++] = 'b';
2446 if (update_only)
2447 argstr[x++] = 'u';
2448 if (!do_xfers) /* Note: NOT "dry_run"! */
2449 argstr[x++] = 'n';
2450 if (preserve_links)
2451 argstr[x++] = 'l';
2452 if ((xfer_dirs >= 2 && xfer_dirs < 4)
2453 || (xfer_dirs && !recurse && (list_only || (delete_mode && am_sender))))
2454 argstr[x++] = 'd';
2455 if (am_sender) {
2456 if (keep_dirlinks)
2457 argstr[x++] = 'K';
2458 if (prune_empty_dirs)
2459 argstr[x++] = 'm';
2460 if (omit_dir_times)
2461 argstr[x++] = 'O';
2462 if (omit_link_times)
2463 argstr[x++] = 'J';
2464 if (fuzzy_basis) {
2465 argstr[x++] = 'y';
2466 if (fuzzy_basis > 1)
2467 argstr[x++] = 'y';
2468 }
2469 } else {
2470 if (copy_links)
2471 argstr[x++] = 'L';
2472 if (copy_dirlinks)
2473 argstr[x++] = 'k';
2474 }
2475
2476 if (whole_file > 0)
2477 argstr[x++] = 'W';
2478 /* We don't need to send --no-whole-file, because it's the
2479 * default for remote transfers, and in any case old versions
2480 * of rsync will not understand it. */
2481
2482 if (preserve_hard_links) {
2483 argstr[x++] = 'H';
2484 if (preserve_hard_links > 1)
2485 argstr[x++] = 'H';
2486 }
2487 if (preserve_uid)
2488 argstr[x++] = 'o';
2489 if (preserve_gid)
2490 argstr[x++] = 'g';
2491 if (preserve_devices) /* ignore preserve_specials here */
2492 argstr[x++] = 'D';
2493 if (preserve_times)
2494 argstr[x++] = 't';
2495 if (preserve_perms)
2496 argstr[x++] = 'p';
2497 else if (preserve_executability && am_sender)
2498 argstr[x++] = 'E';
2499 #ifdef SUPPORT_ACLS
2500 if (preserve_acls)
2501 argstr[x++] = 'A';
2502 #endif
2503 #ifdef SUPPORT_XATTRS
2504 if (preserve_xattrs) {
2505 argstr[x++] = 'X';
2506 if (preserve_xattrs > 1)
2507 argstr[x++] = 'X';
2508 }
2509 #endif
2510 if (recurse)
2511 argstr[x++] = 'r';
2512 if (always_checksum)
2513 argstr[x++] = 'c';
2514 if (cvs_exclude)
2515 argstr[x++] = 'C';
2516 if (ignore_times)
2517 argstr[x++] = 'I';
2518 if (relative_paths)
2519 argstr[x++] = 'R';
2520 if (one_file_system) {
2521 argstr[x++] = 'x';
2522 if (one_file_system > 1)
2523 argstr[x++] = 'x';
2524 }
2525 if (sparse_files)
2526 argstr[x++] = 'S';
2527 if (do_compression == 1)
2528 argstr[x++] = 'z';
2529
2530 set_allow_inc_recurse();
2531
2532 /* We don't really know the actual protocol_version at this point,
2533 * but checking the pre-negotiated value allows the user to use a
2534 * --protocol=29 override to avoid the use of this -eFLAGS opt. */
2535 if (protocol_version >= 30) {
2536 /* Use "eFlags" alias so that cull_options doesn't think that these are no-arg option letters. */
2537 #define eFlags argstr
2538 /* We make use of the -e option to let the server know about
2539 * any pre-release protocol version && some behavior flags. */
2540 eFlags[x++] = 'e';
2541 #if SUBPROTOCOL_VERSION != 0
2542 if (protocol_version == PROTOCOL_VERSION) {
2543 x += snprintf(argstr+x, sizeof argstr - x,
2544 "%d.%d",
2545 PROTOCOL_VERSION, SUBPROTOCOL_VERSION);
2546 } else
2547 #endif
2548 eFlags[x++] = '.';
2549 if (allow_inc_recurse)
2550 eFlags[x++] = 'i';
2551 #ifdef CAN_SET_SYMLINK_TIMES
2552 eFlags[x++] = 'L'; /* symlink time-setting support */
2553 #endif
2554 #ifdef ICONV_OPTION
2555 eFlags[x++] = 's'; /* symlink iconv translation support */
2556 #endif
2557 eFlags[x++] = 'f'; /* flist I/O-error safety support */
2558 eFlags[x++] = 'x'; /* xattr hardlink optimization not desired */
2559 eFlags[x++] = 'C'; /* support checksum seed order fix */
2560 #undef eFlags
2561 }
2562
2563 if (x >= (int)sizeof argstr) { /* Not possible... */
2564 rprintf(FERROR, "argstr overflow in server_options().\n");
2565 exit_cleanup(RERR_MALLOC);
2566 }
2567
2568 argstr[x] = '\0';
2569
2570 if (x > 1)
2571 args[ac++] = argstr;
2572
2573 #ifdef ICONV_OPTION
2574 if (iconv_opt) {
2575 char *set = strchr(iconv_opt, ',');
2576 if (set)
2577 set++;
2578 else
2579 set = iconv_opt;
2580 if (asprintf(&arg, "--iconv=%s", set) < 0)
2581 goto oom;
2582 args[ac++] = arg;
2583 }
2584 #endif
2585
2586 if (protect_args && !local_server) /* unprotected args stop here */
2587 args[ac++] = NULL;
2588
2589 if (list_only > 1)
2590 args[ac++] = "--list-only";
2591
2592 /* This makes sure that the remote rsync can handle deleting with -d
2593 * sans -r because the --no-r option was added at the same time. */
2594 if (xfer_dirs && !recurse && delete_mode && am_sender)
2595 args[ac++] = "--no-r";
2596
2597 if (do_compression && def_compress_level != Z_DEFAULT_COMPRESSION) {
2598 if (asprintf(&arg, "--compress-level=%d", def_compress_level) < 0)
2599 goto oom;
2600 args[ac++] = arg;
2601 }
2602
2603 if (preserve_devices) {
2604 /* Note: sending "--devices" would not be backward-compatible. */
2605 if (!preserve_specials)
2606 args[ac++] = "--no-specials"; /* -D is already set. */
2607 } else if (preserve_specials)
2608 args[ac++] = "--specials";
2609
2610 /* The server side doesn't use our log-format, but in certain
2611 * circumstances they need to know a little about the option. */
2612 if (stdout_format && am_sender) {
2613 /* Use --log-format, not --out-format, for compatibility. */
2614 if (stdout_format_has_i > 1)
2615 args[ac++] = "--log-format=%i%I";
2616 else if (stdout_format_has_i)
2617 args[ac++] = "--log-format=%i";
2618 else if (stdout_format_has_o_or_i)
2619 args[ac++] = "--log-format=%o";
2620 else if (!verbose)
2621 args[ac++] = "--log-format=X";
2622 }
2623
2624 if (block_size) {
2625 if (asprintf(&arg, "-B%lu", block_size) < 0)
2626 goto oom;
2627 args[ac++] = arg;
2628 }
2629
2630 if (io_timeout) {
2631 if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
2632 goto oom;
2633 args[ac++] = arg;
2634 }
2635
2636 if (bwlimit) {
2637 if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
2638 goto oom;
2639 args[ac++] = arg;
2640 }
2641
2642 if (backup_dir) {
2643 args[ac++] = "--backup-dir";
2644 args[ac++] = backup_dir;
2645 }
2646
2647 /* Only send --suffix if it specifies a non-default value. */
2648 if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
2649 /* We use the following syntax to avoid weirdness with '~'. */
2650 if (asprintf(&arg, "--suffix=%s", backup_suffix) < 0)
2651 goto oom;
2652 args[ac++] = arg;
2653 }
2654
2655 if (checksum_choice) {
2656 if (asprintf(&arg, "--checksum-choice=%s", checksum_choice) < 0)
2657 goto oom;
2658 args[ac++] = arg;
2659 }
2660
2661 if (am_sender) {
2662 if (max_delete > 0) {
2663 if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
2664 goto oom;
2665 args[ac++] = arg;
2666 } else if (max_delete == 0)
2667 args[ac++] = "--max-delete=-1";
2668 if (min_size >= 0) {
2669 args[ac++] = "--min-size";
2670 args[ac++] = min_size_arg;
2671 }
2672 if (max_size >= 0) {
2673 args[ac++] = "--max-size";
2674 args[ac++] = max_size_arg;
2675 }
2676 if (delete_before)
2677 args[ac++] = "--delete-before";
2678 else if (delete_during == 2)
2679 args[ac++] = "--delete-delay";
2680 else if (delete_during)
2681 args[ac++] = "--delete-during";
2682 else if (delete_after)
2683 args[ac++] = "--delete-after";
2684 else if (delete_mode && !delete_excluded)
2685 args[ac++] = "--delete";
2686 if (delete_excluded)
2687 args[ac++] = "--delete-excluded";
2688 if (force_delete)
2689 args[ac++] = "--force";
2690 if (write_batch < 0)
2691 args[ac++] = "--only-write-batch=X";
2692 if (am_root > 1)
2693 args[ac++] = "--super";
2694 if (size_only)
2695 args[ac++] = "--size-only";
2696 if (do_stats)
2697 args[ac++] = "--stats";
2698 } else {
2699 if (skip_compress) {
2700 if (asprintf(&arg, "--skip-compress=%s", skip_compress) < 0)
2701 goto oom;
2702 args[ac++] = arg;
2703 }
2704 }
2705
2706 /* --delete-missing-args needs the cooperation of both sides, but
2707 * the sender can handle --ignore-missing-args by itself. */
2708 if (missing_args == 2)
2709 args[ac++] = "--delete-missing-args";
2710 else if (missing_args == 1 && !am_sender)
2711 args[ac++] = "--ignore-missing-args";
2712
2713 if (modify_window_set && am_sender) {
2714 char *fmt = modify_window < 0 ? "-@%d" : "--modify-window=%d";
2715 if (asprintf(&arg, fmt, modify_window) < 0)
2716 goto oom;
2717 args[ac++] = arg;
2718 }
2719
2720 if (checksum_seed) {
2721 if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
2722 goto oom;
2723 args[ac++] = arg;
2724 }
2725
2726 if (partial_dir && am_sender) {
2727 if (partial_dir != tmp_partialdir) {
2728 args[ac++] = "--partial-dir";
2729 args[ac++] = partial_dir;
2730 }
2731 if (delay_updates)
2732 args[ac++] = "--delay-updates";
2733 } else if (keep_partial && am_sender)
2734 args[ac++] = "--partial";
2735
2736 if (ignore_errors)
2737 args[ac++] = "--ignore-errors";
2738
2739 if (copy_unsafe_links)
2740 args[ac++] = "--copy-unsafe-links";
2741
2742 if (safe_symlinks)
2743 args[ac++] = "--safe-links";
2744
2745 if (numeric_ids)
2746 args[ac++] = "--numeric-ids";
2747
2748 if (use_qsort)
2749 args[ac++] = "--use-qsort";
2750
2751 if (am_sender) {
2752 if (usermap) {
2753 if (asprintf(&arg, "--usermap=%s", usermap) < 0)
2754 goto oom;
2755 args[ac++] = arg;
2756 }
2757
2758 if (groupmap) {
2759 if (asprintf(&arg, "--groupmap=%s", groupmap) < 0)
2760 goto oom;
2761 args[ac++] = arg;
2762 }
2763
2764 if (ignore_existing)
2765 args[ac++] = "--ignore-existing";
2766
2767 /* Backward compatibility: send --existing, not --ignore-non-existing. */
2768 if (ignore_non_existing)
2769 args[ac++] = "--existing";
2770
2771 if (tmpdir) {
2772 args[ac++] = "--temp-dir";
2773 args[ac++] = tmpdir;
2774 }
2775
2776 if (basis_dir[0]) {
2777 /* the server only needs this option if it is not the sender,
2778 * and it may be an older version that doesn't know this
2779 * option, so don't send it if client is the sender.
2780 */
2781 for (i = 0; i < basis_dir_cnt; i++) {
2782 args[ac++] = dest_option;
2783 args[ac++] = basis_dir[i];
2784 }
2785 }
2786 }
2787
2788 /* What flags do we need to send to the other side? */
2789 where = (am_server ? W_CLI : W_SRV) | (am_sender ? W_REC : W_SND);
2790 arg = make_output_option(info_words, info_levels, where);
2791 if (arg)
2792 args[ac++] = arg;
2793
2794 arg = make_output_option(debug_words, debug_levels, where);
2795 if (arg)
2796 args[ac++] = arg;
2797
2798 if (append_mode) {
2799 if (append_mode > 1)
2800 args[ac++] = "--append";
2801 args[ac++] = "--append";
2802 } else if (inplace)
2803 args[ac++] = "--inplace";
2804
2805 if (files_from && (!am_sender || filesfrom_host)) {
2806 if (filesfrom_host) {
2807 args[ac++] = "--files-from";
2808 args[ac++] = files_from;
2809 if (eol_nulls)
2810 args[ac++] = "--from0";
2811 } else {
2812 args[ac++] = "--files-from=-";
2813 args[ac++] = "--from0";
2814 }
2815 if (!relative_paths)
2816 args[ac++] = "--no-relative";
2817 }
2818 /* It's OK that this checks the upper-bound of the protocol_version. */
2819 if (relative_paths && !implied_dirs && (!am_sender || protocol_version >= 30))
2820 args[ac++] = "--no-implied-dirs";
2821
2822 if (write_devices && am_sender)
2823 args[ac++] = "--write-devices";
2824
2825 if (remove_source_files == 1)
2826 args[ac++] = "--remove-source-files";
2827 else if (remove_source_files)
2828 args[ac++] = "--remove-sent-files";
2829
2830 if (preallocate_files && am_sender)
2831 args[ac++] = "--preallocate";
2832
2833 if (ac > MAX_SERVER_ARGS) { /* Not possible... */
2834 rprintf(FERROR, "argc overflow in server_options().\n");
2835 exit_cleanup(RERR_MALLOC);
2836 }
2837
2838 if (do_compression > 1)
2839 args[ac++] = "--new-compress";
2840
2841 if (remote_option_cnt) {
2842 int j;
2843 if (ac + remote_option_cnt > MAX_SERVER_ARGS) {
2844 rprintf(FERROR, "too many remote options specified.\n");
2845 exit_cleanup(RERR_SYNTAX);
2846 }
2847 for (j = 1; j <= remote_option_cnt; j++)
2848 args[ac++] = (char*)remote_options[j];
2849 }
2850
2851 *argc_p = ac;
2852 return;
2853
2854 oom:
2855 out_of_memory("server_options");
2856 }
2857
2858 /* If str points to a valid hostspec, return allocated memory containing the
2859 * [USER@]HOST part of the string, and set the path_start_ptr to the part of
2860 * the string after the host part. Otherwise, return NULL. If port_ptr is
2861 * non-NULL, we must be parsing an rsync:// URL hostname, and we will set
2862 * *port_ptr if a port number is found. Note that IPv6 IPs will have their
2863 * (required for parsing) [ and ] chars elided from the returned string. */
2864 static char *parse_hostspec(char *str, char **path_start_ptr, int *port_ptr)
2865 {
2866 char *s, *host_start = str;
2867 int hostlen = 0, userlen = 0;
2868 char *ret;
2869
2870 for (s = str; ; s++) {
2871 if (!*s) {
2872 /* It is only OK if we run out of string with rsync:// */
2873 if (!port_ptr)
2874 return NULL;
2875 if (!hostlen)
2876 hostlen = s - host_start;
2877 break;
2878 }
2879 if (*s == ':' || *s == '/') {
2880 if (!hostlen)
2881 hostlen = s - host_start;
2882 if (*s++ == '/') {
2883 if (!port_ptr)
2884 return NULL;
2885 } else if (port_ptr) {
2886 *port_ptr = atoi(s);
2887 while (isDigit(s)) s++;
2888 if (*s && *s++ != '/')
2889 return NULL;
2890 }
2891 break;
2892 }
2893 if (*s == '@') {
2894 userlen = s - str + 1;
2895 host_start = s + 1;
2896 } else if (*s == '[') {
2897 if (s != host_start++)
2898 return NULL;
2899 while (*s && *s != ']' && *s != '/') s++; /*SHARED ITERATOR*/
2900 hostlen = s - host_start;
2901 if (*s != ']' || (s[1] && s[1] != '/' && s[1] != ':') || !hostlen)
2902 return NULL;
2903 }
2904 }
2905
2906 *path_start_ptr = s;
2907 ret = new_array(char, userlen + hostlen + 1);
2908 if (userlen)
2909 strlcpy(ret, str, userlen + 1);
2910 strlcpy(ret + userlen, host_start, hostlen + 1);
2911 return ret;
2912 }
2913
2914 /* Look for a HOST specfication of the form "HOST:PATH", "HOST::PATH", or
2915 * "rsync://HOST:PORT/PATH". If found, *host_ptr will be set to some allocated
2916 * memory with the HOST. If a daemon-accessing spec was specified, the value
2917 * of *port_ptr will contain a non-0 port number, otherwise it will be set to
2918 * 0. The return value is a pointer to the PATH. Note that the HOST spec can
2919 * be an IPv6 literal address enclosed in '[' and ']' (such as "[::1]" or
2920 * "[::ffff:127.0.0.1]") which is returned without the '[' and ']'. */
2921 char *check_for_hostspec(char *s, char **host_ptr, int *port_ptr)
2922 {
2923 char *path;
2924
2925 if (port_ptr && strncasecmp(URL_PREFIX, s, strlen(URL_PREFIX)) == 0) {
2926 *host_ptr = parse_hostspec(s + strlen(URL_PREFIX), &path, port_ptr);
2927 if (*host_ptr) {
2928 if (!*port_ptr)
2929 *port_ptr = -1; /* -1 indicates they want the default */
2930 return path;
2931 }
2932 }
2933
2934 *host_ptr = parse_hostspec(s, &path, NULL);
2935 if (!*host_ptr)
2936 return NULL;
2937
2938 if (*path == ':') {
2939 if (port_ptr && !*port_ptr)
2940 *port_ptr = RSYNC_PORT;
2941 return path + 1;
2942 }
2943 if (port_ptr)
2944 *port_ptr = 0;
2945
2946 return path;
2947 }
rsync: a fast, versatile, remote (and local) file-copying tool