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Disable atimes on macOS.
[rsync.git] / options.c
blobb5aaadeed170e5d24161570366124cafc2f3eeb7
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) 2002-2020 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 "latest-year.h"
25 #include <popt.h>
26
27 extern int module_id;
28 extern int local_server;
29 extern int sanitize_paths;
30 extern int daemon_over_rsh;
31 extern unsigned int module_dirlen;
32 extern struct name_num_obj valid_checksums;
33 extern struct name_num_obj valid_compressions;
34 extern filter_rule_list filter_list;
35 extern filter_rule_list daemon_filter_list;
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 preserve_atimes = 0;
66 int update_only = 0;
67 int open_noatime = 0;
68 int cvs_exclude = 0;
69 int dry_run = 0;
70 int do_xfers = 1;
71 int ignore_times = 0;
72 int delete_mode = 0;
73 int delete_during = 0;
74 int delete_before = 0;
75 int delete_after = 0;
76 int delete_excluded = 0;
77 int remove_source_files = 0;
78 int one_file_system = 0;
79 int protocol_version = PROTOCOL_VERSION;
80 int sparse_files = 0;
81 int preallocate_files = 0;
82 int do_compression = 0;
83 int do_compression_level = CLVL_NOT_SPECIFIED;
84 int am_root = 0; /* 0 = normal, 1 = root, 2 = --super, -1 = --fake-super */
85 int am_server = 0;
86 int am_sender = 0;
87 int am_starting_up = 1;
88 int relative_paths = -1;
89 int implied_dirs = 1;
90 int missing_args = 0; /* 0 = FERROR_XFER, 1 = ignore, 2 = delete */
91 int numeric_ids = 0;
92 int msgs2stderr = 0;
93 int allow_8bit_chars = 0;
94 int force_delete = 0;
95 int io_timeout = 0;
96 int prune_empty_dirs = 0;
97 int use_qsort = 0;
98 char *files_from = NULL;
99 int filesfrom_fd = -1;
100 char *filesfrom_host = NULL;
101 int eol_nulls = 0;
102 int protect_args = -1;
103 int human_readable = 1;
104 int recurse = 0;
105 int allow_inc_recurse = 1;
106 int xfer_dirs = -1;
107 int am_daemon = 0;
108 int connect_timeout = 0;
109 int keep_partial = 0;
110 int safe_symlinks = 0;
111 int copy_unsafe_links = 0;
112 int munge_symlinks = 0;
113 int size_only = 0;
114 int daemon_bwlimit = 0;
115 int bwlimit = 0;
116 int fuzzy_basis = 0;
117 size_t bwlimit_writemax = 0;
118 int ignore_existing = 0;
119 int ignore_non_existing = 0;
120 int need_messages_from_generator = 0;
121 int max_delete = INT_MIN;
122 OFF_T max_size = -1;
123 OFF_T min_size = -1;
124 int ignore_errors = 0;
125 int modify_window = 0;
126 int blocking_io = -1;
127 int checksum_seed = 0;
128 int inplace = 0;
129 int delay_updates = 0;
130 long block_size = 0; /* "long" because popt can't set an int32. */
131 char *skip_compress = NULL;
132 char *copy_as = NULL;
133 item_list dparam_list = EMPTY_ITEM_LIST;
134
135 /** Network address family. **/
136 int default_af_hint
137 #ifdef INET6
138 = 0; /* Any protocol */
139 #else
140 = AF_INET; /* Must use IPv4 */
141 # ifdef AF_INET6
142 # undef AF_INET6
143 # endif
144 # define AF_INET6 AF_INET /* make -6 option a no-op */
145 #endif
146
147 /** Do not go into the background when run as --daemon. Good
148 * for debugging and required for running as a service on W32,
149 * or under Unix process-monitors. **/
150 int no_detach
151 #if defined _WIN32 || defined __WIN32__
152 = 1;
153 #else
154 = 0;
155 #endif
156
157 int write_batch = 0;
158 int read_batch = 0;
159 int backup_dir_len = 0;
160 int backup_suffix_len;
161 unsigned int backup_dir_remainder;
162
163 char *backup_suffix = NULL;
164 char *tmpdir = NULL;
165 char *partial_dir = NULL;
166 char *basis_dir[MAX_BASIS_DIRS+1];
167 char *config_file = NULL;
168 char *shell_cmd = NULL;
169 char *logfile_name = NULL;
170 char *logfile_format = NULL;
171 char *stdout_format = NULL;
172 char *password_file = NULL;
173 char *early_input_file = NULL;
174 char *rsync_path = RSYNC_PATH;
175 char *backup_dir = NULL;
176 char backup_dir_buf[MAXPATHLEN];
177 char *sockopts = NULL;
178 char *usermap = NULL;
179 char *groupmap = NULL;
180 int rsync_port = 0;
181 int alt_dest_type = 0;
182 int basis_dir_cnt = 0;
183
184 static int version_opt_cnt = 0;
185 static int remote_option_alloc = 0;
186 int remote_option_cnt = 0;
187 const char **remote_options = NULL;
188 const char *checksum_choice = NULL;
189 const char *compress_choice = NULL;
190
191 #ifndef __APPLE__ /* Do we need a configure check for this? */
192 #define SUPPORT_ATIMES 1
193 #endif
194
195 int quiet = 0;
196 int output_motd = 1;
197 int log_before_transfer = 0;
198 int stdout_format_has_i = 0;
199 int stdout_format_has_o_or_i = 0;
200 int logfile_format_has_i = 0;
201 int logfile_format_has_o_or_i = 0;
202 int always_checksum = 0;
203 int list_only = 0;
204
205 #define MAX_BATCH_NAME_LEN 256 /* Must be less than MAXPATHLEN-13 */
206 char *batch_name = NULL;
207
208 int need_unsorted_flist = 0;
209 char *iconv_opt =
210 #ifdef ICONV_OPTION
211 ICONV_OPTION;
212 #else
213 NULL;
214 #endif
215
216 struct chmod_mode_struct *chmod_modes = NULL;
217
218 static const char *debug_verbosity[] = {
219 /*0*/ NULL,
220 /*1*/ NULL,
221 /*2*/ "BIND,CMD,CONNECT,DEL,DELTASUM,DUP,FILTER,FLIST,ICONV",
222 /*3*/ "ACL,BACKUP,CONNECT2,DELTASUM2,DEL2,EXIT,FILTER2,FLIST2,FUZZY,GENR,OWN,RECV,SEND,TIME",
223 /*4*/ "CMD2,DELTASUM3,DEL3,EXIT2,FLIST3,ICONV2,OWN2,PROTO,TIME2",
224 /*5*/ "CHDIR,DELTASUM4,FLIST4,FUZZY2,HASH,HLINK",
225 };
226
227 #define MAX_VERBOSITY ((int)(sizeof debug_verbosity / sizeof debug_verbosity[0]) - 1)
228
229 static const char *info_verbosity[1+MAX_VERBOSITY] = {
230 /*0*/ NULL,
231 /*1*/ "COPY,DEL,FLIST,MISC,NAME,STATS,SYMSAFE",
232 /*2*/ "BACKUP,MISC2,MOUNT,NAME2,REMOVE,SKIP",
233 };
234
235 #define MAX_OUT_LEVEL 4 /* The largest N allowed for any flagN word. */
236
237 short info_levels[COUNT_INFO], debug_levels[COUNT_DEBUG];
238
239 #define DEFAULT_PRIORITY 0 /* Default/implied/--verbose set values. */
240 #define HELP_PRIORITY 1 /* The help output uses this level. */
241 #define USER_PRIORITY 2 /* User-specified via --info or --debug */
242 #define LIMIT_PRIORITY 3 /* Overriding priority when limiting values. */
243
244 #define W_CLI (1<<0) /* client side */
245 #define W_SRV (1<<1) /* server side */
246 #define W_SND (1<<2) /* sending side */
247 #define W_REC (1<<3) /* receiving side */
248
249 struct output_struct {
250 char *name; /* The name of the info/debug flag. */
251 char *help; /* The description of the info/debug flag. */
252 uchar namelen; /* The length of the name string. */
253 uchar flag; /* The flag's value, for consistency check. */
254 uchar where; /* Bits indicating where the flag is used. */
255 uchar priority; /* See *_PRIORITY defines. */
256 };
257
258 #define INFO_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, INFO_##flag, where, 0 }
259
260 static struct output_struct info_words[COUNT_INFO+1] = {
261 INFO_WORD(BACKUP, W_REC, "Mention files backed up"),
262 INFO_WORD(COPY, W_REC, "Mention files copied locally on the receiving side"),
263 INFO_WORD(DEL, W_REC, "Mention deletions on the receiving side"),
264 INFO_WORD(FLIST, W_CLI, "Mention file-list receiving/sending (levels 1-2)"),
265 INFO_WORD(MISC, W_SND|W_REC, "Mention miscellaneous information (levels 1-2)"),
266 INFO_WORD(MOUNT, W_SND|W_REC, "Mention mounts that were found or skipped"),
267 INFO_WORD(NAME, W_SND|W_REC, "Mention 1) updated file/dir names, 2) unchanged names"),
268 INFO_WORD(PROGRESS, W_CLI, "Mention 1) per-file progress or 2) total transfer progress"),
269 INFO_WORD(REMOVE, W_SND, "Mention files removed on the sending side"),
270 INFO_WORD(SKIP, W_REC, "Mention files that are skipped due to options used"),
271 INFO_WORD(STATS, W_CLI|W_SRV, "Mention statistics at end of run (levels 1-3)"),
272 INFO_WORD(SYMSAFE, W_SND|W_REC, "Mention symlinks that are unsafe"),
273 { NULL, "--info", 0, 0, 0, 0 }
274 };
275
276 #define DEBUG_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, DEBUG_##flag, where, 0 }
277
278 static struct output_struct debug_words[COUNT_DEBUG+1] = {
279 DEBUG_WORD(ACL, W_SND|W_REC, "Debug extra ACL info"),
280 DEBUG_WORD(BACKUP, W_REC, "Debug backup actions (levels 1-2)"),
281 DEBUG_WORD(BIND, W_CLI, "Debug socket bind actions"),
282 DEBUG_WORD(CHDIR, W_CLI|W_SRV, "Debug when the current directory changes"),
283 DEBUG_WORD(CONNECT, W_CLI, "Debug connection events (levels 1-2)"),
284 DEBUG_WORD(CMD, W_CLI, "Debug commands+options that are issued (levels 1-2)"),
285 DEBUG_WORD(DEL, W_REC, "Debug delete actions (levels 1-3)"),
286 DEBUG_WORD(DELTASUM, W_SND|W_REC, "Debug delta-transfer checksumming (levels 1-4)"),
287 DEBUG_WORD(DUP, W_REC, "Debug weeding of duplicate names"),
288 DEBUG_WORD(EXIT, W_CLI|W_SRV, "Debug exit events (levels 1-3)"),
289 DEBUG_WORD(FILTER, W_SND|W_REC, "Debug filter actions (levels 1-2)"),
290 DEBUG_WORD(FLIST, W_SND|W_REC, "Debug file-list operations (levels 1-4)"),
291 DEBUG_WORD(FUZZY, W_REC, "Debug fuzzy scoring (levels 1-2)"),
292 DEBUG_WORD(GENR, W_REC, "Debug generator functions"),
293 DEBUG_WORD(HASH, W_SND|W_REC, "Debug hashtable code"),
294 DEBUG_WORD(HLINK, W_SND|W_REC, "Debug hard-link actions (levels 1-3)"),
295 DEBUG_WORD(ICONV, W_CLI|W_SRV, "Debug iconv character conversions (levels 1-2)"),
296 DEBUG_WORD(IO, W_CLI|W_SRV, "Debug I/O routines (levels 1-4)"),
297 DEBUG_WORD(NSTR, W_CLI|W_SRV, "Debug negotiation strings"),
298 DEBUG_WORD(OWN, W_REC, "Debug ownership changes in users & groups (levels 1-2)"),
299 DEBUG_WORD(PROTO, W_CLI|W_SRV, "Debug protocol information"),
300 DEBUG_WORD(RECV, W_REC, "Debug receiver functions"),
301 DEBUG_WORD(SEND, W_SND, "Debug sender functions"),
302 DEBUG_WORD(TIME, W_REC, "Debug setting of modified times (levels 1-2)"),
303 { NULL, "--debug", 0, 0, 0, 0 }
304 };
305
306 static int verbose = 0;
307 static int do_stats = 0;
308 static int do_progress = 0;
309 static int daemon_opt; /* sets am_daemon after option error-reporting */
310 static int omit_dir_times = 0;
311 static int omit_link_times = 0;
312 static int F_option_cnt = 0;
313 static int modify_window_set;
314 static int itemize_changes = 0;
315 static int refused_delete, refused_archive_part, refused_compress;
316 static int refused_partial, refused_progress, refused_delete_before;
317 static int refused_delete_during;
318 static int refused_inplace, refused_no_iconv;
319 static BOOL usermap_via_chown, groupmap_via_chown;
320 static char *outbuf_mode;
321 static char *bwlimit_arg, *max_size_arg, *min_size_arg;
322 static char tmp_partialdir[] = ".~tmp~";
323
324 /** Local address to bind. As a character string because it's
325 * interpreted by the IPv6 layer: should be a numeric IP4 or IP6
326 * address, or a hostname. **/
327 char *bind_address;
328
329 static void output_item_help(struct output_struct *words);
330
331 /* This constructs a string that represents all the options set for either
332 * the --info or --debug setting, skipping any implied options (by -v, etc.).
333 * This is used both when conveying the user's options to the server, and
334 * when the help output wants to tell the user what options are implied. */
335 static char *make_output_option(struct output_struct *words, short *levels, uchar where)
336 {
337 char *str = words == info_words ? "--info=" : "--debug=";
338 int j, counts[MAX_OUT_LEVEL+1], pos, skipped = 0, len = 0, max = 0, lev = 0;
339 int word_count = words == info_words ? COUNT_INFO : COUNT_DEBUG;
340 char *buf;
341
342 memset(counts, 0, sizeof counts);
343
344 for (j = 0; words[j].name; j++) {
345 if (words[j].flag != j) {
346 rprintf(FERROR, "rsync: internal error on %s%s: %d != %d\n",
347 words == info_words ? "INFO_" : "DEBUG_",
348 words[j].name, words[j].flag, j);
349 exit_cleanup(RERR_UNSUPPORTED);
350 }
351 if (!(words[j].where & where))
352 continue;
353 if (words[j].priority == DEFAULT_PRIORITY) {
354 /* Implied items don't need to be mentioned. */
355 skipped++;
356 continue;
357 }
358 len += len ? 1 : strlen(str);
359 len += strlen(words[j].name);
360 len += levels[j] == 1 ? 0 : 1;
361
362 if (words[j].priority == HELP_PRIORITY)
363 continue; /* no abbreviating for help */
364
365 assert(levels[j] <= MAX_OUT_LEVEL);
366 if (++counts[levels[j]] > max) {
367 /* Determine which level has the most items. */
368 lev = levels[j];
369 max = counts[lev];
370 }
371 }
372
373 /* Sanity check the COUNT_* define against the length of the table. */
374 if (j != word_count) {
375 rprintf(FERROR, "rsync: internal error: %s is wrong! (%d != %d)\n",
376 words == info_words ? "COUNT_INFO" : "COUNT_DEBUG",
377 j, word_count);
378 exit_cleanup(RERR_UNSUPPORTED);
379 }
380
381 if (!len)
382 return NULL;
383
384 len++;
385 if (!(buf = new_array(char, len)))
386 out_of_memory("make_output_option");
387 pos = 0;
388
389 if (skipped || max < 5)
390 lev = -1;
391 else {
392 if (lev == 0)
393 pos += snprintf(buf, len, "%sNONE", str);
394 else if (lev == 1)
395 pos += snprintf(buf, len, "%sALL", str);
396 else
397 pos += snprintf(buf, len, "%sALL%d", str, lev);
398 }
399
400 for (j = 0; words[j].name && pos < len; j++) {
401 if (words[j].priority == DEFAULT_PRIORITY || levels[j] == lev || !(words[j].where & where))
402 continue;
403 if (pos)
404 buf[pos++] = ',';
405 else
406 pos += strlcpy(buf+pos, str, len-pos);
407 if (pos < len)
408 pos += strlcpy(buf+pos, words[j].name, len-pos);
409 /* Level 1 is implied by the name alone. */
410 if (levels[j] != 1 && pos < len)
411 buf[pos++] = '0' + levels[j];
412 }
413
414 buf[pos] = '\0';
415
416 return buf;
417 }
418
419 static void parse_output_words(struct output_struct *words, short *levels, const char *str, uchar priority)
420 {
421 const char *s;
422 int j, len, lev;
423
424 for ( ; str; str = s) {
425 if ((s = strchr(str, ',')) != NULL)
426 len = s++ - str;
427 else
428 len = strlen(str);
429 if (!len)
430 continue;
431 if (!isDigit(str)) {
432 while (len && isDigit(str+len-1))
433 len--;
434 }
435 lev = isDigit(str+len) ? atoi(str+len) : 1;
436 if (lev > MAX_OUT_LEVEL)
437 lev = MAX_OUT_LEVEL;
438 if (len == 4 && strncasecmp(str, "help", 4) == 0) {
439 output_item_help(words);
440 exit_cleanup(0);
441 }
442 if (len == 4 && strncasecmp(str, "none", 4) == 0)
443 len = lev = 0;
444 else if (len == 3 && strncasecmp(str, "all", 3) == 0)
445 len = 0;
446 for (j = 0; words[j].name; j++) {
447 if (!len
448 || (len == words[j].namelen && strncasecmp(str, words[j].name, len) == 0)) {
449 if (priority >= words[j].priority) {
450 words[j].priority = priority;
451 levels[j] = lev;
452 }
453 if (len)
454 break;
455 }
456 }
457 if (len && !words[j].name && !am_server) {
458 rprintf(FERROR, "Unknown %s item: \"%.*s\"\n",
459 words[j].help, len, str);
460 exit_cleanup(RERR_SYNTAX);
461 }
462 }
463 }
464
465 /* Tell the user what all the info or debug flags mean. */
466 static void output_item_help(struct output_struct *words)
467 {
468 short *levels = words == info_words ? info_levels : debug_levels;
469 const char **verbosity = words == info_words ? info_verbosity : debug_verbosity;
470 char buf[128], *opt, *fmt = "%-10s %s\n";
471 int j;
472
473 reset_output_levels();
474
475 rprintf(FINFO, "Use OPT or OPT1 for level 1 output, OPT2 for level 2, etc.; OPT0 silences.\n");
476 rprintf(FINFO, "\n");
477 for (j = 0; words[j].name; j++)
478 rprintf(FINFO, fmt, words[j].name, words[j].help);
479 rprintf(FINFO, "\n");
480
481 snprintf(buf, sizeof buf, "Set all %s options (e.g. all%d)",
482 words[j].help, MAX_OUT_LEVEL);
483 rprintf(FINFO, fmt, "ALL", buf);
484
485 snprintf(buf, sizeof buf, "Silence all %s options (same as all0)",
486 words[j].help);
487 rprintf(FINFO, fmt, "NONE", buf);
488
489 rprintf(FINFO, fmt, "HELP", "Output this help message");
490 rprintf(FINFO, "\n");
491 rprintf(FINFO, "Options added for each increase in verbose level:\n");
492
493 for (j = 1; j <= MAX_VERBOSITY; j++) {
494 parse_output_words(words, levels, verbosity[j], HELP_PRIORITY);
495 opt = make_output_option(words, levels, W_CLI|W_SRV|W_SND|W_REC);
496 if (opt) {
497 rprintf(FINFO, "%d) %s\n", j, strchr(opt, '=')+1);
498 free(opt);
499 }
500 reset_output_levels();
501 }
502 }
503
504 /* The --verbose option now sets info+debug flags. */
505 static void set_output_verbosity(int level, uchar priority)
506 {
507 int j;
508
509 if (level > MAX_VERBOSITY)
510 level = MAX_VERBOSITY;
511
512 for (j = 1; j <= level; j++) {
513 parse_output_words(info_words, info_levels, info_verbosity[j], priority);
514 parse_output_words(debug_words, debug_levels, debug_verbosity[j], priority);
515 }
516 }
517
518 /* Limit the info+debug flag levels given a verbose-option level limit. */
519 void limit_output_verbosity(int level)
520 {
521 short info_limits[COUNT_INFO], debug_limits[COUNT_DEBUG];
522 int j;
523
524 if (level > MAX_VERBOSITY)
525 return;
526
527 memset(info_limits, 0, sizeof info_limits);
528 memset(debug_limits, 0, sizeof debug_limits);
529
530 /* Compute the level limits in the above arrays. */
531 for (j = 1; j <= level; j++) {
532 parse_output_words(info_words, info_limits, info_verbosity[j], LIMIT_PRIORITY);
533 parse_output_words(debug_words, debug_limits, debug_verbosity[j], LIMIT_PRIORITY);
534 }
535
536 for (j = 0; j < COUNT_INFO; j++) {
537 if (info_levels[j] > info_limits[j])
538 info_levels[j] = info_limits[j];
539 }
540
541 for (j = 0; j < COUNT_DEBUG; j++) {
542 if (debug_levels[j] > debug_limits[j])
543 debug_levels[j] = debug_limits[j];
544 }
545 }
546
547 void reset_output_levels(void)
548 {
549 int j;
550
551 memset(info_levels, 0, sizeof info_levels);
552 memset(debug_levels, 0, sizeof debug_levels);
553
554 for (j = 0; j < COUNT_INFO; j++)
555 info_words[j].priority = DEFAULT_PRIORITY;
556
557 for (j = 0; j < COUNT_DEBUG; j++)
558 debug_words[j].priority = DEFAULT_PRIORITY;
559 }
560
561 void negate_output_levels(void)
562 {
563 int j;
564
565 for (j = 0; j < COUNT_INFO; j++)
566 info_levels[j] *= -1;
567
568 for (j = 0; j < COUNT_DEBUG; j++)
569 debug_levels[j] *= -1;
570 }
571
572 static char *istring(const char *fmt, int val)
573 {
574 char *str;
575 if (asprintf(&str, fmt, val) < 0)
576 out_of_memory("istring");
577 return str;
578 }
579
580 static void print_capabilities(enum logcode f)
581 {
582 STRUCT_STAT *dumstat;
583 char line_buf[75];
584 int line_len, j;
585 char *capabilities[] = {
586 istring("%d-bit files", (int)(sizeof (OFF_T) * 8)),
587 istring("%d-bit inums", (int)(sizeof dumstat->st_ino * 8)), /* Don't check ino_t! */
588 istring("%d-bit timestamps", (int)(sizeof (time_t) * 8)),
589 istring("%d-bit long ints", (int)(sizeof (int64) * 8)),
590
591 #ifndef HAVE_SOCKETPAIR
592 "no "
593 #endif
594 "socketpairs",
595
596 #ifndef SUPPORT_HARD_LINKS
597 "no "
598 #endif
599 "hardlinks",
600
601 #ifndef SUPPORT_LINKS
602 "no "
603 #endif
604 "symlinks",
605
606 #ifndef INET6
607 "no "
608 #endif
609 "IPv6",
610
611 #ifndef SUPPORT_ATIMES
612 "no "
613 #endif
614 "atimes",
615
616 "batchfiles",
617
618 #ifndef HAVE_FTRUNCATE
619 "no "
620 #endif
621 "inplace",
622
623 #ifndef HAVE_FTRUNCATE
624 "no "
625 #endif
626 "append",
627
628 #ifndef SUPPORT_ACLS
629 "no "
630 #endif
631 "ACLs",
632
633 #ifndef SUPPORT_XATTRS
634 "no "
635 #endif
636 "xattrs",
637
638 #ifdef RSYNC_USE_PROTECTED_ARGS
639 "default "
640 #else
641 "optional "
642 #endif
643 "protect-args",
644
645 #ifndef ICONV_OPTION
646 "no "
647 #endif
648 "iconv",
649
650 #ifndef CAN_SET_SYMLINK_TIMES
651 "no "
652 #endif
653 "symtimes",
654
655 #ifndef SUPPORT_PREALLOCATION
656 "no "
657 #endif
658 "prealloc",
659
660 "*" /* All options after this point are hidden w/o -V -V */
661 #ifndef HAVE_SIMD
662 "no "
663 #endif
664 "SIMD",
665
666 #ifndef HAVE_ASM
667 "no "
668 #endif
669 "asm",
670
671 #ifndef USE_OPENSSL
672 "no "
673 #endif
674 "openssl-crypto",
675
676 NULL
677 };
678
679 for (line_len = 0, j = 0; ; j++) {
680 char *cap = capabilities[j];
681 if (!cap)
682 break;
683 if (*cap == '*') {
684 if (version_opt_cnt >= 2)
685 capabilities[j]++;
686 else
687 capabilities[j] = NULL;
688 break;
689 }
690 }
691
692 for (line_len = 0, j = 0; ; j++) {
693 char *cap = capabilities[j];
694 int cap_len = cap ? strlen(cap) : 1000;
695 int need_comma = cap && capabilities[j+1] != NULL ? 1 : 0;
696 if (line_len + 1 + cap_len + need_comma >= (int)sizeof line_buf) {
697 rprintf(f, " %s\n", line_buf);
698 line_len = 0;
699 }
700 if (!cap)
701 break;
702 line_len += snprintf(line_buf+line_len, sizeof line_buf - line_len, " %s%s", cap, need_comma ? "," : "");
703 }
704 }
705
706 static void print_rsync_version(enum logcode f)
707 {
708 char tmpbuf[256], *subprotocol = "";
709
710 #if SUBPROTOCOL_VERSION != 0
711 subprotocol = istring(".PR%d", SUBPROTOCOL_VERSION);
712 #endif
713 rprintf(f, "%s version %s protocol version %d%s\n",
714 RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION, subprotocol);
715
716 rprintf(f, "Copyright (C) 1996-" LATEST_YEAR " by Andrew Tridgell, Wayne Davison, and others.\n");
717 rprintf(f, "Web site: http://rsync.samba.org/\n");
718
719 rprintf(f, "Capabilities:\n");
720 print_capabilities(f);
721
722 rprintf(f, "Checksum list:\n");
723 get_default_nno_list(&valid_checksums, tmpbuf, sizeof tmpbuf, '(');
724 rprintf(f, " %s\n", tmpbuf);
725
726 rprintf(f, "Compress list:\n");
727 get_default_nno_list(&valid_compressions, tmpbuf, sizeof tmpbuf, '(');
728 rprintf(f, " %s\n", tmpbuf);
729
730 #ifdef MAINTAINER_MODE
731 rprintf(f, "Panic Action: \"%s\"\n", get_panic_action());
732 #endif
733
734 #if SIZEOF_INT64 < 8
735 rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
736 #endif
737 if (sizeof (int64) != SIZEOF_INT64) {
738 rprintf(f,
739 "WARNING: size mismatch in SIZEOF_INT64 define (%d != %d)\n",
740 (int) SIZEOF_INT64, (int) sizeof (int64));
741 }
742
743 rprintf(f,"\n");
744 rprintf(f,"rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n");
745 rprintf(f,"are welcome to redistribute it under certain conditions. See the GNU\n");
746 rprintf(f,"General Public Licence for details.\n");
747 }
748
749
750 void usage(enum logcode F)
751 {
752 print_rsync_version(F);
753
754 rprintf(F,"\n");
755 rprintf(F,"rsync is a file transfer program capable of efficient remote update\n");
756 rprintf(F,"via a fast differencing algorithm.\n");
757
758 rprintf(F,"\n");
759 rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... DEST\n");
760 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
761 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
762 rprintf(F," or rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST\n");
763 rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC [DEST]\n");
764 rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
765 rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
766 rprintf(F,"The ':' usages connect via remote shell, while '::' & 'rsync://' usages connect\n");
767 rprintf(F,"to an rsync daemon, and require SRC or DEST to start with a module name.\n");
768 rprintf(F,"\n");
769 rprintf(F,"Options\n");
770 #include "help-rsync.h"
771 rprintf(F,"\n");
772 rprintf(F,"Use \"rsync --daemon --help\" to see the daemon-mode command-line options.\n");
773 rprintf(F,"Please see the rsync(1) and rsyncd.conf(5) man pages for full documentation.\n");
774 rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
775 }
776
777 enum {OPT_SERVER = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
778 OPT_FILTER, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST, OPT_HELP,
779 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW, OPT_MIN_SIZE, OPT_CHMOD,
780 OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_ONLY_WRITE_BATCH, OPT_MAX_SIZE,
781 OPT_NO_D, OPT_APPEND, OPT_NO_ICONV, OPT_INFO, OPT_DEBUG,
782 OPT_USERMAP, OPT_GROUPMAP, OPT_CHOWN, OPT_BWLIMIT,
783 OPT_OLD_COMPRESS, OPT_NEW_COMPRESS, OPT_NO_COMPRESS,
784 OPT_REFUSED_BASE = 9000};
785
786 static struct poptOption long_options[] = {
787 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
788 {"help", 0, POPT_ARG_NONE, 0, OPT_HELP, 0, 0 },
789 {"version", 'V', POPT_ARG_NONE, 0, 'V', 0, 0},
790 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
791 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
792 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
793 {"info", 0, POPT_ARG_STRING, 0, OPT_INFO, 0, 0 },
794 {"debug", 0, POPT_ARG_STRING, 0, OPT_DEBUG, 0, 0 },
795 {"msgs2stderr", 0, POPT_ARG_NONE, &msgs2stderr, 0, 0, 0 },
796 {"no-msgs2stderr", 0, POPT_ARG_VAL, &msgs2stderr, 0, 0, 0 },
797 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
798 {"motd", 0, POPT_ARG_VAL, &output_motd, 1, 0, 0 },
799 {"no-motd", 0, POPT_ARG_VAL, &output_motd, 0, 0, 0 },
800 {"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
801 {"human-readable", 'h', POPT_ARG_NONE, 0, 'h', 0, 0},
802 {"no-human-readable",0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
803 {"no-h", 0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
804 {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
805 {"archive", 'a', POPT_ARG_NONE, 0, 'a', 0, 0 },
806 {"recursive", 'r', POPT_ARG_VAL, &recurse, 2, 0, 0 },
807 {"no-recursive", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
808 {"no-r", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
809 {"inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
810 {"no-inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
811 {"i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
812 {"no-i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
813 {"dirs", 'd', POPT_ARG_VAL, &xfer_dirs, 2, 0, 0 },
814 {"no-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
815 {"no-d", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
816 {"old-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
817 {"old-d", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
818 {"perms", 'p', POPT_ARG_VAL, &preserve_perms, 1, 0, 0 },
819 {"no-perms", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
820 {"no-p", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
821 {"executability", 'E', POPT_ARG_NONE, &preserve_executability, 0, 0, 0 },
822 {"acls", 'A', POPT_ARG_NONE, 0, 'A', 0, 0 },
823 {"no-acls", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
824 {"no-A", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
825 {"xattrs", 'X', POPT_ARG_NONE, 0, 'X', 0, 0 },
826 {"no-xattrs", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
827 {"no-X", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
828 {"times", 't', POPT_ARG_VAL, &preserve_times, 1, 0, 0 },
829 {"no-times", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 },
830 {"no-t", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 },
831 {"atimes", 'U', POPT_ARG_NONE, 0, 'U', 0, 0 },
832 {"no-atimes", 0, POPT_ARG_VAL, &preserve_atimes, 0, 0, 0 },
833 {"no-U", 0, POPT_ARG_VAL, &preserve_atimes, 0, 0, 0 },
834 {"open-noatime", 0, POPT_ARG_VAL, &open_noatime, 1, 0, 0 },
835 {"no-open-noatime", 0, POPT_ARG_VAL, &open_noatime, 0, 0, 0 },
836 {"omit-dir-times", 'O', POPT_ARG_VAL, &omit_dir_times, 1, 0, 0 },
837 {"no-omit-dir-times",0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
838 {"no-O", 0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
839 {"omit-link-times", 'J', POPT_ARG_VAL, &omit_link_times, 1, 0, 0 },
840 {"no-omit-link-times",0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
841 {"no-J", 0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
842 {"modify-window", '@', POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
843 {"super", 0, POPT_ARG_VAL, &am_root, 2, 0, 0 },
844 {"no-super", 0, POPT_ARG_VAL, &am_root, 0, 0, 0 },
845 {"fake-super", 0, POPT_ARG_VAL, &am_root, -1, 0, 0 },
846 {"owner", 'o', POPT_ARG_VAL, &preserve_uid, 1, 0, 0 },
847 {"no-owner", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
848 {"no-o", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
849 {"group", 'g', POPT_ARG_VAL, &preserve_gid, 1, 0, 0 },
850 {"no-group", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
851 {"no-g", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
852 {0, 'D', POPT_ARG_NONE, 0, 'D', 0, 0 },
853 {"no-D", 0, POPT_ARG_NONE, 0, OPT_NO_D, 0, 0 },
854 {"devices", 0, POPT_ARG_VAL, &preserve_devices, 1, 0, 0 },
855 {"no-devices", 0, POPT_ARG_VAL, &preserve_devices, 0, 0, 0 },
856 {"write-devices", 0, POPT_ARG_VAL, &write_devices, 1, 0, 0 },
857 {"no-write-devices", 0, POPT_ARG_VAL, &write_devices, 0, 0, 0 },
858 {"specials", 0, POPT_ARG_VAL, &preserve_specials, 1, 0, 0 },
859 {"no-specials", 0, POPT_ARG_VAL, &preserve_specials, 0, 0, 0 },
860 {"links", 'l', POPT_ARG_VAL, &preserve_links, 1, 0, 0 },
861 {"no-links", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
862 {"no-l", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
863 {"copy-links", 'L', POPT_ARG_NONE, &copy_links, 0, 0, 0 },
864 {"copy-unsafe-links",0, POPT_ARG_NONE, &copy_unsafe_links, 0, 0, 0 },
865 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
866 {"munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 1, 0, 0 },
867 {"no-munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 0, 0, 0 },
868 {"copy-dirlinks", 'k', POPT_ARG_NONE, &copy_dirlinks, 0, 0, 0 },
869 {"keep-dirlinks", 'K', POPT_ARG_NONE, &keep_dirlinks, 0, 0, 0 },
870 {"hard-links", 'H', POPT_ARG_NONE, 0, 'H', 0, 0 },
871 {"no-hard-links", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
872 {"no-H", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
873 {"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 },
874 {"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
875 {"no-R", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
876 {"implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
877 {"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
878 {"i-d", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
879 {"no-i-d", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
880 {"chmod", 0, POPT_ARG_STRING, 0, OPT_CHMOD, 0, 0 },
881 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 },
882 {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 },
883 {"one-file-system", 'x', POPT_ARG_NONE, 0, 'x', 0, 0 },
884 {"no-one-file-system",0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
885 {"no-x", 0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
886 {"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 },
887 {"existing", 0, POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
888 {"ignore-non-existing",0,POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
889 {"ignore-existing", 0, POPT_ARG_NONE, &ignore_existing, 0, 0, 0 },
890 {"max-size", 0, POPT_ARG_STRING, &max_size_arg, OPT_MAX_SIZE, 0, 0 },
891 {"min-size", 0, POPT_ARG_STRING, &min_size_arg, OPT_MIN_SIZE, 0, 0 },
892 {"sparse", 'S', POPT_ARG_VAL, &sparse_files, 1, 0, 0 },
893 {"no-sparse", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
894 {"no-S", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
895 {"preallocate", 0, POPT_ARG_NONE, &preallocate_files, 0, 0, 0},
896 {"inplace", 0, POPT_ARG_VAL, &inplace, 1, 0, 0 },
897 {"no-inplace", 0, POPT_ARG_VAL, &inplace, 0, 0, 0 },
898 {"append", 0, POPT_ARG_NONE, 0, OPT_APPEND, 0, 0 },
899 {"append-verify", 0, POPT_ARG_VAL, &append_mode, 2, 0, 0 },
900 {"no-append", 0, POPT_ARG_VAL, &append_mode, 0, 0, 0 },
901 {"del", 0, POPT_ARG_NONE, &delete_during, 0, 0, 0 },
902 {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
903 {"delete-before", 0, POPT_ARG_NONE, &delete_before, 0, 0, 0 },
904 {"delete-during", 0, POPT_ARG_VAL, &delete_during, 1, 0, 0 },
905 {"delete-delay", 0, POPT_ARG_VAL, &delete_during, 2, 0, 0 },
906 {"delete-after", 0, POPT_ARG_NONE, &delete_after, 0, 0, 0 },
907 {"delete-excluded", 0, POPT_ARG_NONE, &delete_excluded, 0, 0, 0 },
908 {"delete-missing-args",0,POPT_BIT_SET, &missing_args, 2, 0, 0 },
909 {"ignore-missing-args",0,POPT_BIT_SET, &missing_args, 1, 0, 0 },
910 {"remove-sent-files",0, POPT_ARG_VAL, &remove_source_files, 2, 0, 0 }, /* deprecated */
911 {"remove-source-files",0,POPT_ARG_VAL, &remove_source_files, 1, 0, 0 },
912 {"force", 0, POPT_ARG_VAL, &force_delete, 1, 0, 0 },
913 {"no-force", 0, POPT_ARG_VAL, &force_delete, 0, 0, 0 },
914 {"ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 1, 0, 0 },
915 {"no-ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 0, 0, 0 },
916 {"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
917 {0, 'F', POPT_ARG_NONE, 0, 'F', 0, 0 },
918 {"filter", 'f', POPT_ARG_STRING, 0, OPT_FILTER, 0, 0 },
919 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
920 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
921 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
922 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
923 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
924 {"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
925 {"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
926 {"no-W", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
927 {"checksum", 'c', POPT_ARG_VAL, &always_checksum, 1, 0, 0 },
928 {"no-checksum", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
929 {"no-c", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
930 {"checksum-choice", 0, POPT_ARG_STRING, &checksum_choice, 0, 0, 0 },
931 {"cc", 0, POPT_ARG_STRING, &checksum_choice, 0, 0, 0 },
932 {"block-size", 'B', POPT_ARG_LONG, &block_size, 0, 0, 0 },
933 {"compare-dest", 0, POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 },
934 {"copy-dest", 0, POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 },
935 {"link-dest", 0, POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 },
936 {"fuzzy", 'y', POPT_ARG_NONE, 0, 'y', 0, 0 },
937 {"no-fuzzy", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
938 {"no-y", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
939 {"compress", 'z', POPT_ARG_NONE, 0, 'z', 0, 0 },
940 {"old-compress", 0, POPT_ARG_NONE, 0, OPT_OLD_COMPRESS, 0, 0 },
941 {"new-compress", 0, POPT_ARG_NONE, 0, OPT_NEW_COMPRESS, 0, 0 },
942 {"no-compress", 0, POPT_ARG_NONE, 0, OPT_NO_COMPRESS, 0, 0 },
943 {"no-z", 0, POPT_ARG_NONE, 0, OPT_NO_COMPRESS, 0, 0 },
944 {"compress-choice", 0, POPT_ARG_STRING, &compress_choice, 0, 0, 0 },
945 {"zc", 0, POPT_ARG_STRING, &compress_choice, 0, 0, 0 },
946 {"skip-compress", 0, POPT_ARG_STRING, &skip_compress, 0, 0, 0 },
947 {"compress-level", 0, POPT_ARG_INT, &do_compression_level, 0, 0, 0 },
948 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
949 {"progress", 0, POPT_ARG_VAL, &do_progress, 1, 0, 0 },
950 {"no-progress", 0, POPT_ARG_VAL, &do_progress, 0, 0, 0 },
951 {"partial", 0, POPT_ARG_VAL, &keep_partial, 1, 0, 0 },
952 {"no-partial", 0, POPT_ARG_VAL, &keep_partial, 0, 0, 0 },
953 {"partial-dir", 0, POPT_ARG_STRING, &partial_dir, 0, 0, 0 },
954 {"delay-updates", 0, POPT_ARG_VAL, &delay_updates, 1, 0, 0 },
955 {"no-delay-updates", 0, POPT_ARG_VAL, &delay_updates, 0, 0, 0 },
956 {"prune-empty-dirs",'m', POPT_ARG_VAL, &prune_empty_dirs, 1, 0, 0 },
957 {"no-prune-empty-dirs",0,POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
958 {"no-m", 0, POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
959 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
960 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
961 {"out-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 },
962 {"log-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 }, /* DEPRECATED */
963 {"itemize-changes", 'i', POPT_ARG_NONE, 0, 'i', 0, 0 },
964 {"no-itemize-changes",0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
965 {"no-i", 0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
966 {"bwlimit", 0, POPT_ARG_STRING, &bwlimit_arg, OPT_BWLIMIT, 0, 0 },
967 {"no-bwlimit", 0, POPT_ARG_VAL, &bwlimit, 0, 0, 0 },
968 {"backup", 'b', POPT_ARG_VAL, &make_backups, 1, 0, 0 },
969 {"no-backup", 0, POPT_ARG_VAL, &make_backups, 0, 0, 0 },
970 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
971 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
972 {"list-only", 0, POPT_ARG_VAL, &list_only, 2, 0, 0 },
973 {"read-batch", 0, POPT_ARG_STRING, &batch_name, OPT_READ_BATCH, 0, 0 },
974 {"write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_WRITE_BATCH, 0, 0 },
975 {"only-write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_ONLY_WRITE_BATCH, 0, 0 },
976 {"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
977 {"from0", '0', POPT_ARG_VAL, &eol_nulls, 1, 0, 0},
978 {"no-from0", 0, POPT_ARG_VAL, &eol_nulls, 0, 0, 0},
979 {"protect-args", 's', POPT_ARG_VAL, &protect_args, 1, 0, 0},
980 {"no-protect-args", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
981 {"no-s", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
982 {"numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 1, 0, 0 },
983 {"no-numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 0, 0, 0 },
984 {"usermap", 0, POPT_ARG_STRING, 0, OPT_USERMAP, 0, 0 },
985 {"groupmap", 0, POPT_ARG_STRING, 0, OPT_GROUPMAP, 0, 0 },
986 {"chown", 0, POPT_ARG_STRING, 0, OPT_CHOWN, 0, 0 },
987 {"timeout", 0, POPT_ARG_INT, &io_timeout, 0, 0, 0 },
988 {"no-timeout", 0, POPT_ARG_VAL, &io_timeout, 0, 0, 0 },
989 {"contimeout", 0, POPT_ARG_INT, &connect_timeout, 0, 0, 0 },
990 {"no-contimeout", 0, POPT_ARG_VAL, &connect_timeout, 0, 0, 0 },
991 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
992 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
993 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
994 {"iconv", 0, POPT_ARG_STRING, &iconv_opt, 0, 0, 0 },
995 {"no-iconv", 0, POPT_ARG_NONE, 0, OPT_NO_ICONV, 0, 0 },
996 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
997 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
998 {"8-bit-output", '8', POPT_ARG_VAL, &allow_8bit_chars, 1, 0, 0 },
999 {"no-8-bit-output", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
1000 {"no-8", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
1001 {"qsort", 0, POPT_ARG_NONE, &use_qsort, 0, 0, 0 },
1002 {"copy-as", 0, POPT_ARG_STRING, &copy_as, 0, 0, 0 },
1003 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
1004 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
1005 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
1006 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
1007 {"early-input", 0, POPT_ARG_STRING, &early_input_file, 0, 0, 0 },
1008 {"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
1009 {"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
1010 {"outbuf", 0, POPT_ARG_STRING, &outbuf_mode, 0, 0, 0 },
1011 {"remote-option", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
1012 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
1013 {"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 },
1014 {"server", 0, POPT_ARG_NONE, 0, OPT_SERVER, 0, 0 },
1015 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
1016 /* All the following options switch us into daemon-mode option-parsing. */
1017 {"config", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
1018 {"daemon", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
1019 {"dparam", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
1020 {"detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
1021 {"no-detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
1022 {0,0,0,0, 0, 0, 0}
1023 };
1024
1025 static void daemon_usage(enum logcode F)
1026 {
1027 print_rsync_version(F);
1028
1029 rprintf(F,"\n");
1030 rprintf(F,"Usage: rsync --daemon [OPTION]...\n");
1031 #include "help-rsyncd.h"
1032 rprintf(F,"\n");
1033 rprintf(F,"If you were not trying to invoke rsync as a daemon, avoid using any of the\n");
1034 rprintf(F,"daemon-specific rsync options. See also the rsyncd.conf(5) man page.\n");
1035 }
1036
1037 static struct poptOption long_daemon_options[] = {
1038 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
1039 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
1040 {"bwlimit", 0, POPT_ARG_INT, &daemon_bwlimit, 0, 0, 0 },
1041 {"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
1042 {"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
1043 {"dparam", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
1044 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
1045 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
1046 {"detach", 0, POPT_ARG_VAL, &no_detach, 0, 0, 0 },
1047 {"no-detach", 0, POPT_ARG_VAL, &no_detach, 1, 0, 0 },
1048 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
1049 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
1050 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
1051 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
1052 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
1053 {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
1054 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
1055 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
1056 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
1057 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
1058 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
1059 {0,0,0,0, 0, 0, 0}
1060 };
1061
1062
1063 static char err_buf[200];
1064
1065
1066 /**
1067 * Store the option error message, if any, so that we can log the
1068 * connection attempt (which requires parsing the options), and then
1069 * show the error later on.
1070 **/
1071 void option_error(void)
1072 {
1073 if (!err_buf[0]) {
1074 strlcpy(err_buf, "Error parsing options: option may "
1075 "be supported on client but not on server?\n",
1076 sizeof err_buf);
1077 }
1078
1079 rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
1080 io_flush(MSG_FLUSH);
1081 msleep(20);
1082 }
1083
1084
1085 static void parse_one_refuse_match(int negated, const char *ref, const struct poptOption *list_end)
1086 {
1087 struct poptOption *op;
1088 char shortName[2];
1089 int is_wild = strpbrk(ref, "*?[") != NULL;
1090 int found_match = 0;
1091
1092 shortName[1] = '\0';
1093
1094 if (strcmp("a", ref) == 0 || strcmp("archive", ref) == 0) {
1095 ref = "[ardlptgoD]";
1096 is_wild = 1;
1097 }
1098
1099 for (op = long_options; op != list_end; op++) {
1100 *shortName = op->shortName;
1101 if ((op->longName && wildmatch(ref, op->longName))
1102 || (*shortName && wildmatch(ref, shortName))) {
1103 if (op->descrip[1] == '*')
1104 op->descrip = negated ? "a*" : "r*";
1105 else if (!is_wild)
1106 op->descrip = negated ? "a=" : "r=";
1107 found_match = 1;
1108 if (!is_wild)
1109 break;
1110 }
1111 }
1112
1113 if (!found_match)
1114 rprintf(FLOG, "No match for refuse-options string \"%s\"\n", ref);
1115 }
1116
1117
1118 /**
1119 * Tweak the option table to disable all options that the rsyncd.conf
1120 * file has told us to refuse.
1121 **/
1122 static void set_refuse_options(void)
1123 {
1124 struct poptOption *op, *list_end = NULL;
1125 char *cp, *ref = lp_refuse_options(module_id);
1126 int negated;
1127
1128 if (!ref)
1129 ref = "";
1130
1131 if (!am_daemon)
1132 ref = "";
1133
1134 /* We abuse the descrip field in poptOption to make it easy to flag which options
1135 * are refused (since we don't use it otherwise). Start by marking all options
1136 * as "a"ccepted with a few options also marked as non-wild. */
1137 for (op = long_options; ; op++) {
1138 const char *longName = op->longName ? op->longName : "";
1139 if (!op->longName && !op->shortName) {
1140 list_end = op;
1141 break;
1142 }
1143 if (!am_daemon
1144 || op->shortName == 'e' /* Required for compatibility flags */
1145 || op->shortName == '0' /* --from0 just modifies --files-from, so refuse that instead (or not) */
1146 || op->shortName == 's' /* --protect-args is always OK */
1147 || op->shortName == 'n' /* --dry-run is always OK */
1148 || strcmp("iconv", longName) == 0
1149 || strcmp("no-iconv", longName) == 0
1150 || strcmp("checksum-seed", longName) == 0
1151 || strcmp("write-devices", longName) == 0 /* disable wild-match (it gets refused below) */
1152 || strcmp("log-format", longName) == 0 /* aka out-format (NOT log-file-format) */
1153 || strcmp("sender", longName) == 0
1154 || strcmp("server", longName) == 0)
1155 op->descrip = "a="; /* exact-match only */
1156 else
1157 op->descrip = "a*"; /* wild-card-able */
1158 }
1159 assert(list_end != NULL);
1160
1161 if (am_daemon) { /* Refused by default, but can be accepted via a negated exact match. */
1162 parse_one_refuse_match(0, "write-devices", list_end);
1163 }
1164
1165 while (1) {
1166 while (*ref == ' ') ref++;
1167 if (!*ref)
1168 break;
1169 if ((cp = strchr(ref, ' ')) != NULL)
1170 *cp = '\0';
1171 negated = *ref == '!';
1172 if (negated && ref[1])
1173 ref++;
1174 parse_one_refuse_match(negated, ref, list_end);
1175 if (!cp)
1176 break;
1177 *cp = ' ';
1178 ref = cp + 1;
1179 }
1180
1181 if (am_daemon) {
1182 #ifdef ICONV_OPTION
1183 if (!*lp_charset(module_id))
1184 parse_one_refuse_match(0, "iconv", list_end);
1185 #endif
1186 parse_one_refuse_match(0, "log-file*", list_end);
1187 }
1188
1189 #ifndef SUPPORT_ATIMES
1190 parse_one_refuse_match(0, "atimes", list_end);
1191 #endif
1192 #ifndef SUPPORT_HARD_LINKS
1193 parse_one_refuse_match(0, "link-dest", list_end);
1194 #endif
1195 #ifndef ICONV_OPTION
1196 parse_one_refuse_match(0, "iconv", list_end);
1197 #endif
1198 #ifndef HAVE_SETVBUF
1199 parse_one_refuse_match(0, "outbuf", list_end);
1200 #endif
1201
1202 /* Now we use the descrip values to actually mark the options for refusal. */
1203 for (op = long_options; op != list_end; op++) {
1204 int refused = op->descrip[0] == 'r';
1205 op->descrip = NULL;
1206 if (!refused)
1207 continue;
1208 if (op->argInfo == POPT_ARG_VAL)
1209 op->argInfo = POPT_ARG_NONE;
1210 op->val = (op - long_options) + OPT_REFUSED_BASE;
1211 /* The following flags are set to let us easily check an implied option later in the code. */
1212 switch (op->shortName) {
1213 case 'r': case 'd': case 'l': case 'p':
1214 case 't': case 'g': case 'o': case 'D':
1215 refused_archive_part = op->val;
1216 break;
1217 case 'z':
1218 refused_compress = op->val;
1219 break;
1220 case '\0':
1221 if (strcmp("delete", op->longName) == 0)
1222 refused_delete = op->val;
1223 else if (strcmp("delete-before", op->longName) == 0)
1224 refused_delete_before = op->val;
1225 else if (strcmp("delete-during", op->longName) == 0)
1226 refused_delete_during = op->val;
1227 else if (strcmp("partial", op->longName) == 0)
1228 refused_partial = op->val;
1229 else if (strcmp("progress", op->longName) == 0)
1230 refused_progress = op->val;
1231 else if (strcmp("inplace", op->longName) == 0)
1232 refused_inplace = op->val;
1233 else if (strcmp("no-iconv", op->longName) == 0)
1234 refused_no_iconv = op->val;
1235 break;
1236 }
1237 }
1238 }
1239
1240
1241 static int count_args(const char **argv)
1242 {
1243 int i = 0;
1244
1245 if (argv) {
1246 while (argv[i] != NULL)
1247 i++;
1248 }
1249
1250 return i;
1251 }
1252
1253
1254 static OFF_T parse_size_arg(char **size_arg, char def_suf)
1255 {
1256 int reps, mult, make_compatible = 0;
1257 const char *arg;
1258 OFF_T size = 1;
1259
1260 for (arg = *size_arg; isDigit(arg); arg++) {}
1261 if (*arg == '.')
1262 for (arg++; isDigit(arg); arg++) {}
1263 switch (*arg && *arg != '+' && *arg != '-' ? *arg++ : def_suf) {
1264 case 'b': case 'B':
1265 reps = 0;
1266 break;
1267 case 'k': case 'K':
1268 reps = 1;
1269 break;
1270 case 'm': case 'M':
1271 reps = 2;
1272 break;
1273 case 'g': case 'G':
1274 reps = 3;
1275 break;
1276 default:
1277 return -1;
1278 }
1279 if (*arg == 'b' || *arg == 'B')
1280 mult = 1000, make_compatible = 1, arg++;
1281 else if (!*arg || *arg == '+' || *arg == '-')
1282 mult = 1024;
1283 else if (strncasecmp(arg, "ib", 2) == 0)
1284 mult = 1024, arg += 2;
1285 else
1286 return -1;
1287 while (reps--)
1288 size *= mult;
1289 size *= atof(*size_arg);
1290 if ((*arg == '+' || *arg == '-') && arg[1] == '1')
1291 size += atoi(arg), make_compatible = 1, arg += 2;
1292 if (*arg)
1293 return -1;
1294 if (size > 0 && make_compatible && def_suf == 'b') {
1295 /* We convert this manually because we may need %lld precision,
1296 * and that's not a portable sprintf() escape. */
1297 char buf[128], *s = buf + sizeof buf - 1;
1298 OFF_T num = size;
1299 *s = '\0';
1300 while (num) {
1301 *--s = (char)(num % 10) + '0';
1302 num /= 10;
1303 }
1304 if (!(*size_arg = strdup(s)))
1305 out_of_memory("parse_size_arg");
1306 }
1307 return size;
1308 }
1309
1310
1311 static void create_refuse_error(int which)
1312 {
1313 const char *msg;
1314 if (am_daemon)
1315 msg = "The server is configured to refuse";
1316 else if (am_server)
1317 msg = "The server does not support";
1318 else
1319 msg = "This rsync does not support";
1320
1321 /* The "which" value is the index + OPT_REFUSED_BASE. */
1322 struct poptOption *op = &long_options[which - OPT_REFUSED_BASE];
1323 int n = snprintf(err_buf, sizeof err_buf, "%s --%s\n", msg, op->longName) - 1;
1324 if (op->shortName)
1325 snprintf(err_buf + n, sizeof err_buf - n, " (-%c)\n", op->shortName);
1326 }
1327
1328 /* This is used to make sure that --daemon & --server cannot be aliased to
1329 * something else. These options have always disabled popt aliases for the
1330 * parsing of a daemon or server command-line, but we have to make sure that
1331 * these options cannot vanish so that the alias disabling can take effect. */
1332 static void popt_unalias(poptContext con, const char *opt)
1333 {
1334 struct poptAlias unalias;
1335
1336 memset(&unalias, 0, sizeof unalias);
1337
1338 unalias.longName = opt + 2; /* point past the leading "--" */
1339 unalias.argc = 1;
1340 unalias.argv = new_array0(const char*, 2);
1341 unalias.argv[0] = strdup(opt);
1342
1343 poptAddAlias(con, unalias, 0);
1344 }
1345
1346 char *alt_dest_opt(int type)
1347 {
1348 if (!type)
1349 type = alt_dest_type;
1350
1351 switch (type) {
1352 case COMPARE_DEST:
1353 return "--compare-dest";
1354 case COPY_DEST:
1355 return "--copy-dest";
1356 case LINK_DEST:
1357 return "--link-dest";
1358 default:
1359 assert(0);
1360 }
1361 }
1362
1363 /**
1364 * Process command line arguments. Called on both local and remote.
1365 *
1366 * @retval 1 if all options are OK; with globals set to appropriate
1367 * values
1368 *
1369 * @retval 0 on error, with err_buf containing an explanation
1370 **/
1371 int parse_arguments(int *argc_p, const char ***argv_p)
1372 {
1373 static poptContext pc;
1374 const char *arg, **argv = *argv_p;
1375 int argc = *argc_p;
1376 int opt, want_dest_type;
1377 int orig_protect_args = protect_args;
1378
1379 if (argc == 0) {
1380 strlcpy(err_buf, "argc is zero!\n", sizeof err_buf);
1381 return 0;
1382 }
1383
1384 set_refuse_options();
1385
1386 #ifdef ICONV_OPTION
1387 if (!am_daemon && protect_args <= 0 && (arg = getenv("RSYNC_ICONV")) != NULL && *arg)
1388 iconv_opt = strdup(arg);
1389 #endif
1390
1391 /* TODO: Call poptReadDefaultConfig; handle errors. */
1392
1393 /* The context leaks in case of an error, but if there's a
1394 * problem we always exit anyhow. */
1395 if (pc)
1396 poptFreeContext(pc);
1397 pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
1398 if (!am_server) {
1399 poptReadDefaultConfig(pc, 0);
1400 popt_unalias(pc, "--daemon");
1401 popt_unalias(pc, "--server");
1402 }
1403
1404 while ((opt = poptGetNextOpt(pc)) != -1) {
1405 /* most options are handled automatically by popt;
1406 * only special cases are returned and listed here. */
1407
1408 switch (opt) {
1409 case 'V':
1410 version_opt_cnt++;
1411 break;
1412
1413 case OPT_SERVER:
1414 if (!am_server) {
1415 /* Disable popt aliases on the server side and
1416 * then start parsing the options again. */
1417 poptFreeContext(pc);
1418 pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
1419 am_server = 1;
1420 }
1421 #ifdef ICONV_OPTION
1422 iconv_opt = NULL;
1423 #endif
1424 break;
1425
1426 case OPT_SENDER:
1427 if (!am_server) {
1428 usage(FERROR);
1429 exit_cleanup(RERR_SYNTAX);
1430 }
1431 am_sender = 1;
1432 break;
1433
1434 case OPT_DAEMON:
1435 if (am_daemon) {
1436 strlcpy(err_buf,
1437 "Attempt to hack rsync thwarted!\n",
1438 sizeof err_buf);
1439 return 0;
1440 }
1441 #ifdef ICONV_OPTION
1442 iconv_opt = NULL;
1443 #endif
1444 protect_args = 0;
1445 poptFreeContext(pc);
1446 pc = poptGetContext(RSYNC_NAME, argc, argv, long_daemon_options, 0);
1447 while ((opt = poptGetNextOpt(pc)) != -1) {
1448 char **cpp;
1449 switch (opt) {
1450 case 'h':
1451 daemon_usage(FINFO);
1452 exit_cleanup(0);
1453
1454 case 'M':
1455 arg = poptGetOptArg(pc);
1456 if (!strchr(arg, '=')) {
1457 rprintf(FERROR,
1458 "--dparam value is missing an '=': %s\n",
1459 arg);
1460 goto daemon_error;
1461 }
1462 cpp = EXPAND_ITEM_LIST(&dparam_list, char *, 4);
1463 *cpp = strdup(arg);
1464 break;
1465
1466 case 'v':
1467 verbose++;
1468 break;
1469
1470 default:
1471 rprintf(FERROR,
1472 "rsync: %s: %s (in daemon mode)\n",
1473 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1474 poptStrerror(opt));
1475 goto daemon_error;
1476 }
1477 }
1478
1479 if (dparam_list.count && !set_dparams(1))
1480 exit_cleanup(RERR_SYNTAX);
1481
1482 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
1483 snprintf(err_buf, sizeof err_buf,
1484 "the --temp-dir path is WAY too long.\n");
1485 return 0;
1486 }
1487
1488 if (!daemon_opt) {
1489 rprintf(FERROR, "Daemon option(s) used without --daemon.\n");
1490 daemon_error:
1491 rprintf(FERROR, "(Type \"rsync --daemon --help\" for assistance with daemon mode.)\n");
1492 exit_cleanup(RERR_SYNTAX);
1493 }
1494
1495 *argv_p = argv = poptGetArgs(pc);
1496 *argc_p = argc = count_args(argv);
1497 am_starting_up = 0;
1498 daemon_opt = 0;
1499 am_daemon = 1;
1500 return 1;
1501
1502 case OPT_MODIFY_WINDOW:
1503 /* The value has already been set by popt, but
1504 * we need to remember that we're using a
1505 * non-default setting. */
1506 modify_window_set = 1;
1507 break;
1508
1509 case OPT_FILTER:
1510 parse_filter_str(&filter_list, poptGetOptArg(pc),
1511 rule_template(0), 0);
1512 break;
1513
1514 case OPT_EXCLUDE:
1515 parse_filter_str(&filter_list, poptGetOptArg(pc),
1516 rule_template(0), XFLG_OLD_PREFIXES);
1517 break;
1518
1519 case OPT_INCLUDE:
1520 parse_filter_str(&filter_list, poptGetOptArg(pc),
1521 rule_template(FILTRULE_INCLUDE), XFLG_OLD_PREFIXES);
1522 break;
1523
1524 case OPT_EXCLUDE_FROM:
1525 case OPT_INCLUDE_FROM:
1526 arg = poptGetOptArg(pc);
1527 if (sanitize_paths)
1528 arg = sanitize_path(NULL, arg, NULL, 0, SP_DEFAULT);
1529 if (daemon_filter_list.head) {
1530 int rej;
1531 char *cp = strdup(arg);
1532 if (!cp)
1533 out_of_memory("parse_arguments");
1534 if (!*cp)
1535 rej = 1;
1536 else {
1537 char *dir = cp + (*cp == '/' ? module_dirlen : 0);
1538 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
1539 rej = check_filter(&daemon_filter_list, FLOG, dir, 0) < 0;
1540 }
1541 free(cp);
1542 if (rej)
1543 goto options_rejected;
1544 }
1545 parse_filter_file(&filter_list, arg,
1546 rule_template(opt == OPT_INCLUDE_FROM ? FILTRULE_INCLUDE : 0),
1547 XFLG_FATAL_ERRORS | XFLG_OLD_PREFIXES);
1548 break;
1549
1550 case 'a':
1551 if (refused_archive_part) {
1552 create_refuse_error(refused_archive_part);
1553 return 0;
1554 }
1555 if (!recurse) /* preserve recurse == 2 */
1556 recurse = 1;
1557 #ifdef SUPPORT_LINKS
1558 preserve_links = 1;
1559 #endif
1560 preserve_perms = 1;
1561 preserve_times = 1;
1562 preserve_gid = 1;
1563 preserve_uid = 1;
1564 preserve_devices = 1;
1565 preserve_specials = 1;
1566 break;
1567
1568 case 'D':
1569 preserve_devices = preserve_specials = 1;
1570 break;
1571
1572 case OPT_NO_D:
1573 preserve_devices = preserve_specials = 0;
1574 break;
1575
1576 case 'h':
1577 human_readable++;
1578 break;
1579
1580 case 'H':
1581 preserve_hard_links++;
1582 break;
1583
1584 case 'i':
1585 itemize_changes++;
1586 break;
1587
1588 case 'U':
1589 if (++preserve_atimes > 1)
1590 open_noatime = 1;
1591 break;
1592
1593 case 'v':
1594 verbose++;
1595 break;
1596
1597 case 'y':
1598 fuzzy_basis++;
1599 break;
1600
1601 case 'q':
1602 quiet++;
1603 break;
1604
1605 case 'x':
1606 one_file_system++;
1607 break;
1608
1609 case 'F':
1610 switch (++F_option_cnt) {
1611 case 1:
1612 parse_filter_str(&filter_list,": /.rsync-filter",rule_template(0),0);
1613 break;
1614 case 2:
1615 parse_filter_str(&filter_list,"- .rsync-filter",rule_template(0),0);
1616 break;
1617 }
1618 break;
1619
1620 case 'P':
1621 if (refused_partial || refused_progress) {
1622 create_refuse_error(refused_partial ? refused_partial : refused_progress);
1623 return 0;
1624 }
1625 do_progress = 1;
1626 keep_partial = 1;
1627 break;
1628
1629 case 'z':
1630 do_compression++;
1631 break;
1632
1633 case OPT_OLD_COMPRESS:
1634 compress_choice = "zlib";
1635 break;
1636
1637 case OPT_NEW_COMPRESS:
1638 compress_choice = "zlibx";
1639 break;
1640
1641 case OPT_NO_COMPRESS:
1642 do_compression = 0;
1643 compress_choice = NULL;
1644 break;
1645
1646 case 'M':
1647 arg = poptGetOptArg(pc);
1648 if (*arg != '-') {
1649 snprintf(err_buf, sizeof err_buf,
1650 "Remote option must start with a dash: %s\n", arg);
1651 return 0;
1652 }
1653 if (remote_option_cnt+2 >= remote_option_alloc) {
1654 remote_option_alloc += 16;
1655 remote_options = realloc_array(remote_options,
1656 const char *, remote_option_alloc);
1657 if (!remote_options)
1658 out_of_memory("parse_arguments");
1659 if (!remote_option_cnt)
1660 remote_options[0] = "ARG0";
1661 }
1662 remote_options[++remote_option_cnt] = arg;
1663 remote_options[remote_option_cnt+1] = NULL;
1664 break;
1665
1666 case OPT_WRITE_BATCH:
1667 /* batch_name is already set */
1668 write_batch = 1;
1669 break;
1670
1671 case OPT_ONLY_WRITE_BATCH:
1672 /* batch_name is already set */
1673 write_batch = -1;
1674 break;
1675
1676 case OPT_READ_BATCH:
1677 /* batch_name is already set */
1678 read_batch = 1;
1679 break;
1680
1681 case OPT_NO_ICONV:
1682 #ifdef ICONV_OPTION
1683 iconv_opt = NULL;
1684 #endif
1685 break;
1686
1687 case OPT_MAX_SIZE:
1688 if ((max_size = parse_size_arg(&max_size_arg, 'b')) < 0) {
1689 snprintf(err_buf, sizeof err_buf,
1690 "--max-size value is invalid: %s\n",
1691 max_size_arg);
1692 return 0;
1693 }
1694 break;
1695
1696 case OPT_MIN_SIZE:
1697 if ((min_size = parse_size_arg(&min_size_arg, 'b')) < 0) {
1698 snprintf(err_buf, sizeof err_buf,
1699 "--min-size value is invalid: %s\n",
1700 min_size_arg);
1701 return 0;
1702 }
1703 break;
1704
1705 case OPT_BWLIMIT:
1706 {
1707 OFF_T limit = parse_size_arg(&bwlimit_arg, 'K');
1708 if (limit < 0) {
1709 snprintf(err_buf, sizeof err_buf,
1710 "--bwlimit value is invalid: %s\n", bwlimit_arg);
1711 return 0;
1712 }
1713 bwlimit = (limit + 512) / 1024;
1714 if (limit && !bwlimit) {
1715 snprintf(err_buf, sizeof err_buf,
1716 "--bwlimit value is too small: %s\n", bwlimit_arg);
1717 return 0;
1718 }
1719 }
1720 break;
1721
1722 case OPT_APPEND:
1723 if (am_server)
1724 append_mode++;
1725 else
1726 append_mode = 1;
1727 break;
1728
1729 case OPT_LINK_DEST:
1730 want_dest_type = LINK_DEST;
1731 goto set_dest_dir;
1732
1733 case OPT_COPY_DEST:
1734 want_dest_type = COPY_DEST;
1735 goto set_dest_dir;
1736
1737 case OPT_COMPARE_DEST:
1738 want_dest_type = COMPARE_DEST;
1739
1740 set_dest_dir:
1741 if (alt_dest_type && alt_dest_type != want_dest_type) {
1742 snprintf(err_buf, sizeof err_buf,
1743 "ERROR: the %s option conflicts with the %s option\n",
1744 alt_dest_opt(want_dest_type), alt_dest_opt(0));
1745 return 0;
1746 }
1747 alt_dest_type = want_dest_type;
1748
1749 if (basis_dir_cnt >= MAX_BASIS_DIRS) {
1750 snprintf(err_buf, sizeof err_buf,
1751 "ERROR: at most %d %s args may be specified\n",
1752 MAX_BASIS_DIRS, alt_dest_opt(0));
1753 return 0;
1754 }
1755 /* We defer sanitizing this arg until we know what
1756 * our destination directory is going to be. */
1757 basis_dir[basis_dir_cnt++] = (char *)poptGetOptArg(pc);
1758 break;
1759
1760 case OPT_CHMOD:
1761 arg = poptGetOptArg(pc);
1762 if (!parse_chmod(arg, &chmod_modes)) {
1763 snprintf(err_buf, sizeof err_buf,
1764 "Invalid argument passed to --chmod (%s)\n",
1765 arg);
1766 return 0;
1767 }
1768 break;
1769
1770 case OPT_INFO:
1771 arg = poptGetOptArg(pc);
1772 parse_output_words(info_words, info_levels, arg, USER_PRIORITY);
1773 break;
1774
1775 case OPT_DEBUG:
1776 arg = poptGetOptArg(pc);
1777 parse_output_words(debug_words, debug_levels, arg, USER_PRIORITY);
1778 break;
1779
1780 case OPT_USERMAP:
1781 if (usermap) {
1782 if (usermap_via_chown) {
1783 snprintf(err_buf, sizeof err_buf,
1784 "--usermap conflicts with prior --chown.\n");
1785 return 0;
1786 }
1787 snprintf(err_buf, sizeof err_buf,
1788 "You can only specify --usermap once.\n");
1789 return 0;
1790 }
1791 usermap = (char *)poptGetOptArg(pc);
1792 usermap_via_chown = False;
1793 break;
1794
1795 case OPT_GROUPMAP:
1796 if (groupmap) {
1797 if (groupmap_via_chown) {
1798 snprintf(err_buf, sizeof err_buf,
1799 "--groupmap conflicts with prior --chown.\n");
1800 return 0;
1801 }
1802 snprintf(err_buf, sizeof err_buf,
1803 "You can only specify --groupmap once.\n");
1804 return 0;
1805 }
1806 groupmap = (char *)poptGetOptArg(pc);
1807 groupmap_via_chown = False;
1808 break;
1809
1810 case OPT_CHOWN: {
1811 const char *chown = poptGetOptArg(pc);
1812 int len;
1813 if ((arg = strchr(chown, ':')) != NULL)
1814 len = arg++ - chown;
1815 else
1816 len = strlen(chown);
1817 if (len) {
1818 if (usermap) {
1819 if (!usermap_via_chown) {
1820 snprintf(err_buf, sizeof err_buf,
1821 "--chown conflicts with prior --usermap.\n");
1822 return 0;
1823 }
1824 snprintf(err_buf, sizeof err_buf,
1825 "You can only specify a user-affecting --chown once.\n");
1826 return 0;
1827 }
1828 if (asprintf(&usermap, "*:%.*s", len, chown) < 0)
1829 out_of_memory("parse_arguments");
1830 usermap_via_chown = True;
1831 }
1832 if (arg && *arg) {
1833 if (groupmap) {
1834 if (!groupmap_via_chown) {
1835 snprintf(err_buf, sizeof err_buf,
1836 "--chown conflicts with prior --groupmap.\n");
1837 return 0;
1838 }
1839 snprintf(err_buf, sizeof err_buf,
1840 "You can only specify a group-affecting --chown once.\n");
1841 return 0;
1842 }
1843 if (asprintf(&groupmap, "*:%s", arg) < 0)
1844 out_of_memory("parse_arguments");
1845 groupmap_via_chown = True;
1846 }
1847 break;
1848 }
1849
1850 case OPT_HELP:
1851 usage(FINFO);
1852 exit_cleanup(0);
1853
1854 case 'A':
1855 #ifdef SUPPORT_ACLS
1856 preserve_acls = 1;
1857 preserve_perms = 1;
1858 break;
1859 #else
1860 /* FIXME: this should probably be ignored with a
1861 * warning and then countermeasures taken to
1862 * restrict group and other access in the presence
1863 * of any more restrictive ACLs, but this is safe
1864 * for now */
1865 snprintf(err_buf,sizeof(err_buf),
1866 "ACLs are not supported on this %s\n",
1867 am_server ? "server" : "client");
1868 return 0;
1869 #endif
1870
1871 case 'X':
1872 #ifdef SUPPORT_XATTRS
1873 preserve_xattrs++;
1874 break;
1875 #else
1876 snprintf(err_buf,sizeof(err_buf),
1877 "extended attributes are not supported on this %s\n",
1878 am_server ? "server" : "client");
1879 return 0;
1880 #endif
1881
1882 default:
1883 /* A large opt value means that set_refuse_options()
1884 * turned this option off. */
1885 if (opt >= OPT_REFUSED_BASE) {
1886 create_refuse_error(opt);
1887 return 0;
1888 }
1889 snprintf(err_buf, sizeof err_buf, "%s%s: %s\n",
1890 am_server ? "on remote machine: " : "",
1891 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1892 poptStrerror(opt));
1893 return 0;
1894 }
1895 }
1896
1897 if (version_opt_cnt) {
1898 print_rsync_version(FINFO);
1899 exit_cleanup(0);
1900 }
1901
1902 if (protect_args < 0) {
1903 if (am_server)
1904 protect_args = 0;
1905 else if ((arg = getenv("RSYNC_PROTECT_ARGS")) != NULL && *arg)
1906 protect_args = atoi(arg) ? 1 : 0;
1907 else {
1908 #ifdef RSYNC_USE_PROTECTED_ARGS
1909 protect_args = 1;
1910 #else
1911 protect_args = 0;
1912 #endif
1913 }
1914 }
1915
1916 if (checksum_choice && strcasecmp(checksum_choice, "auto") != 0 && strcasecmp(checksum_choice, "auto,auto") != 0) {
1917 /* Call this early to verify the args and figure out if we need to force
1918 * --whole-file. Note that the parse function will get called again later,
1919 * just in case an "auto" choice needs to know the protocol_version. */
1920 parse_checksum_choice(0);
1921 } else
1922 checksum_choice = NULL;
1923
1924 if (human_readable > 1 && argc == 2 && !am_server) {
1925 /* Allow the old meaning of 'h' (--help) on its own. */
1926 usage(FINFO);
1927 exit_cleanup(0);
1928 }
1929
1930 if (!compress_choice && do_compression > 1)
1931 compress_choice = "zlibx";
1932 if (compress_choice && strcasecmp(compress_choice, "auto") != 0)
1933 parse_compress_choice(0); /* Twiddles do_compression and can possibly NULL-out compress_choice. */
1934 else
1935 compress_choice = NULL;
1936
1937 if (do_compression || do_compression_level != CLVL_NOT_SPECIFIED) {
1938 if (!do_compression)
1939 do_compression = CPRES_AUTO;
1940 if (do_compression && refused_compress) {
1941 create_refuse_error(refused_compress);
1942 return 0;
1943 }
1944 }
1945
1946 #ifdef HAVE_SETVBUF
1947 if (outbuf_mode && !am_server) {
1948 int mode = *(uchar *)outbuf_mode;
1949 if (islower(mode))
1950 mode = toupper(mode);
1951 fflush(stdout); /* Just in case... */
1952 switch (mode) {
1953 case 'N': /* None */
1954 case 'U': /* Unbuffered */
1955 mode = _IONBF;
1956 break;
1957 case 'L': /* Line */
1958 mode = _IOLBF;
1959 break;
1960 case 'B': /* Block */
1961 case 'F': /* Full */
1962 mode = _IOFBF;
1963 break;
1964 default:
1965 snprintf(err_buf, sizeof err_buf,
1966 "Invalid --outbuf setting -- specify N, L, or B.\n");
1967 return 0;
1968 }
1969 setvbuf(stdout, (char *)NULL, mode, 0);
1970 }
1971
1972 if (msgs2stderr) {
1973 /* Make stderr line buffered for better sharing of the stream. */
1974 fflush(stderr); /* Just in case... */
1975 setvbuf(stderr, (char *)NULL, _IOLBF, 0);
1976 }
1977 #endif
1978
1979 set_output_verbosity(verbose, DEFAULT_PRIORITY);
1980
1981 if (do_stats) {
1982 parse_output_words(info_words, info_levels,
1983 verbose > 1 ? "stats3" : "stats2", DEFAULT_PRIORITY);
1984 }
1985
1986 #ifdef ICONV_OPTION
1987 if (iconv_opt && protect_args != 2) {
1988 if (!am_server && strcmp(iconv_opt, "-") == 0)
1989 iconv_opt = NULL;
1990 else
1991 need_unsorted_flist = 1;
1992 }
1993 if (refused_no_iconv && !iconv_opt) {
1994 create_refuse_error(refused_no_iconv);
1995 return 0;
1996 }
1997 #endif
1998
1999 if (fuzzy_basis > 1)
2000 fuzzy_basis = basis_dir_cnt + 1;
2001
2002 /* Don't let the client reset protect_args if it was already processed */
2003 if (orig_protect_args == 2 && am_server)
2004 protect_args = orig_protect_args;
2005
2006 if (protect_args == 1 && am_server)
2007 return 1;
2008
2009 *argv_p = argv = poptGetArgs(pc);
2010 *argc_p = argc = count_args(argv);
2011
2012 #ifndef SUPPORT_LINKS
2013 if (preserve_links && !am_sender) {
2014 snprintf(err_buf, sizeof err_buf,
2015 "symlinks are not supported on this %s\n",
2016 am_server ? "server" : "client");
2017 return 0;
2018 }
2019 #endif
2020
2021 #ifndef SUPPORT_HARD_LINKS
2022 if (preserve_hard_links) {
2023 snprintf(err_buf, sizeof err_buf,
2024 "hard links are not supported on this %s\n",
2025 am_server ? "server" : "client");
2026 return 0;
2027 }
2028 #endif
2029
2030 #ifdef SUPPORT_XATTRS
2031 if (am_root < 0 && preserve_xattrs > 1) {
2032 snprintf(err_buf, sizeof err_buf,
2033 "--fake-super conflicts with -XX\n");
2034 return 0;
2035 }
2036 #else
2037 if (am_root < 0) {
2038 snprintf(err_buf, sizeof err_buf,
2039 "--fake-super requires an rsync with extended attributes enabled\n");
2040 return 0;
2041 }
2042 #endif
2043
2044 if (block_size) {
2045 /* We may not know the real protocol_version at this point if this is the client
2046 * option parsing, but we still want to check it so that the client can specify
2047 * a --protocol=29 option with a larger block size. */
2048 int32 max_blength = protocol_version < 30 ? OLD_MAX_BLOCK_SIZE : MAX_BLOCK_SIZE;
2049
2050 if (block_size > max_blength) {
2051 snprintf(err_buf, sizeof err_buf,
2052 "--block-size=%lu is too large (max: %u)\n", block_size, max_blength);
2053 return 0;
2054 }
2055 }
2056
2057 if (write_batch && read_batch) {
2058 snprintf(err_buf, sizeof err_buf,
2059 "--write-batch and --read-batch can not be used together\n");
2060 return 0;
2061 }
2062 if (write_batch > 0 || read_batch) {
2063 if (am_server) {
2064 rprintf(FINFO,
2065 "ignoring --%s-batch option sent to server\n",
2066 write_batch ? "write" : "read");
2067 /* We don't actually exit_cleanup(), so that we can
2068 * still service older version clients that still send
2069 * batch args to server. */
2070 read_batch = write_batch = 0;
2071 batch_name = NULL;
2072 } else if (dry_run)
2073 write_batch = 0;
2074 } else if (write_batch < 0 && dry_run)
2075 write_batch = 0;
2076 if (read_batch && files_from) {
2077 snprintf(err_buf, sizeof err_buf,
2078 "--read-batch cannot be used with --files-from\n");
2079 return 0;
2080 }
2081 if (read_batch && remove_source_files) {
2082 snprintf(err_buf, sizeof err_buf,
2083 "--read-batch cannot be used with --remove-%s-files\n",
2084 remove_source_files == 1 ? "source" : "sent");
2085 return 0;
2086 }
2087 if (batch_name && strlen(batch_name) > MAX_BATCH_NAME_LEN) {
2088 snprintf(err_buf, sizeof err_buf,
2089 "the batch-file name must be %d characters or less.\n",
2090 MAX_BATCH_NAME_LEN);
2091 return 0;
2092 }
2093
2094 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
2095 snprintf(err_buf, sizeof err_buf,
2096 "the --temp-dir path is WAY too long.\n");
2097 return 0;
2098 }
2099
2100 if (max_delete < 0 && max_delete != INT_MIN) {
2101 /* Negative numbers are treated as "no deletions". */
2102 max_delete = 0;
2103 }
2104
2105 if (files_from) {
2106 if (recurse == 1) /* preserve recurse == 2 */
2107 recurse = 0;
2108 if (xfer_dirs < 0)
2109 xfer_dirs = 1;
2110 }
2111
2112 if (argc < 2 && !read_batch && !am_server)
2113 list_only |= 1;
2114
2115 if (xfer_dirs >= 4) {
2116 parse_filter_str(&filter_list, "- /*/*", rule_template(0), 0);
2117 recurse = xfer_dirs = 1;
2118 } else if (recurse)
2119 xfer_dirs = 1;
2120 else if (xfer_dirs < 0)
2121 xfer_dirs = list_only ? 1 : 0;
2122
2123 if (relative_paths < 0)
2124 relative_paths = files_from? 1 : 0;
2125 if (!relative_paths)
2126 implied_dirs = 0;
2127
2128 if (delete_before + !!delete_during + delete_after > 1) {
2129 snprintf(err_buf, sizeof err_buf,
2130 "You may not combine multiple --delete-WHEN options.\n");
2131 return 0;
2132 }
2133 if (delete_before || delete_during || delete_after)
2134 delete_mode = 1;
2135 else if (delete_mode || delete_excluded) {
2136 /* Only choose now between before & during if one is refused. */
2137 if (refused_delete_before) {
2138 if (!refused_delete_during)
2139 delete_during = 1;
2140 else {
2141 create_refuse_error(refused_delete_before);
2142 return 0;
2143 }
2144 } else if (refused_delete_during)
2145 delete_before = 1;
2146 delete_mode = 1;
2147 }
2148 if (!xfer_dirs && delete_mode) {
2149 snprintf(err_buf, sizeof err_buf,
2150 "--delete does not work without --recursive (-r) or --dirs (-d).\n");
2151 return 0;
2152 }
2153
2154 if (missing_args == 3) /* simplify if both options were specified */
2155 missing_args = 2;
2156 if (refused_delete && (delete_mode || missing_args == 2)) {
2157 create_refuse_error(refused_delete);
2158 return 0;
2159 }
2160
2161 if (remove_source_files) {
2162 /* We only want to infer this refusal of --remove-source-files
2163 * via the refusal of "delete", not any of the "delete-FOO"
2164 * options. */
2165 if (refused_delete && am_sender) {
2166 create_refuse_error(refused_delete);
2167 return 0;
2168 }
2169 need_messages_from_generator = 1;
2170 }
2171
2172 if (munge_symlinks && !am_daemon) {
2173 STRUCT_STAT st;
2174 char prefix[SYMLINK_PREFIX_LEN]; /* NOT +1 ! */
2175 strlcpy(prefix, SYMLINK_PREFIX, sizeof prefix); /* trim the trailing slash */
2176 if (do_stat(prefix, &st) == 0 && S_ISDIR(st.st_mode)) {
2177 rprintf(FERROR, "Symlink munging is unsafe when a %s directory exists.\n",
2178 prefix);
2179 exit_cleanup(RERR_UNSUPPORTED);
2180 }
2181 }
2182
2183 if (sanitize_paths) {
2184 int i;
2185 for (i = argc; i-- > 0; )
2186 argv[i] = sanitize_path(NULL, argv[i], "", 0, SP_KEEP_DOT_DIRS);
2187 if (tmpdir)
2188 tmpdir = sanitize_path(NULL, tmpdir, NULL, 0, SP_DEFAULT);
2189 if (backup_dir)
2190 backup_dir = sanitize_path(NULL, backup_dir, NULL, 0, SP_DEFAULT);
2191 }
2192 if (daemon_filter_list.head && !am_sender) {
2193 filter_rule_list *elp = &daemon_filter_list;
2194 if (tmpdir) {
2195 char *dir;
2196 if (!*tmpdir)
2197 goto options_rejected;
2198 dir = tmpdir + (*tmpdir == '/' ? module_dirlen : 0);
2199 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2200 if (check_filter(elp, FLOG, dir, 1) < 0)
2201 goto options_rejected;
2202 }
2203 if (backup_dir) {
2204 char *dir;
2205 if (!*backup_dir)
2206 goto options_rejected;
2207 dir = backup_dir + (*backup_dir == '/' ? module_dirlen : 0);
2208 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2209 if (check_filter(elp, FLOG, dir, 1) < 0)
2210 goto options_rejected;
2211 }
2212 }
2213
2214 if (!backup_suffix)
2215 backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
2216 backup_suffix_len = strlen(backup_suffix);
2217 if (strchr(backup_suffix, '/') != NULL) {
2218 snprintf(err_buf, sizeof err_buf,
2219 "--suffix cannot contain slashes: %s\n",
2220 backup_suffix);
2221 return 0;
2222 }
2223 if (backup_dir) {
2224 size_t len;
2225 while (*backup_dir == '.' && backup_dir[1] == '/')
2226 backup_dir += 2;
2227 if (*backup_dir == '.' && backup_dir[1] == '\0')
2228 backup_dir++;
2229 len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
2230 if (len > sizeof backup_dir_buf - 128) {
2231 snprintf(err_buf, sizeof err_buf,
2232 "the --backup-dir path is WAY too long.\n");
2233 return 0;
2234 }
2235 backup_dir_len = (int)len;
2236 if (!backup_dir_len) {
2237 backup_dir_len = -1;
2238 backup_dir = NULL;
2239 } else if (backup_dir_buf[backup_dir_len - 1] != '/') {
2240 backup_dir_buf[backup_dir_len++] = '/';
2241 backup_dir_buf[backup_dir_len] = '\0';
2242 }
2243 backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
2244 }
2245 if (backup_dir) {
2246 /* No need for a suffix or a protect rule. */
2247 } else if (!backup_suffix_len && (!am_server || !am_sender)) {
2248 snprintf(err_buf, sizeof err_buf,
2249 "--suffix cannot be empty %s\n", backup_dir_len < 0
2250 ? "when --backup-dir is the same as the dest dir"
2251 : "without a --backup-dir");
2252 return 0;
2253 } else if (make_backups && delete_mode && !delete_excluded && !am_server) {
2254 snprintf(backup_dir_buf, sizeof backup_dir_buf,
2255 "P *%s", backup_suffix);
2256 parse_filter_str(&filter_list, backup_dir_buf, rule_template(0), 0);
2257 }
2258
2259 if (preserve_times) {
2260 preserve_times = PRESERVE_FILE_TIMES;
2261 if (!omit_dir_times)
2262 preserve_times |= PRESERVE_DIR_TIMES;
2263 #ifdef CAN_SET_SYMLINK_TIMES
2264 if (!omit_link_times)
2265 preserve_times |= PRESERVE_LINK_TIMES;
2266 #endif
2267 }
2268
2269 if (make_backups && !backup_dir) {
2270 omit_dir_times = 0; /* Implied, so avoid -O to sender. */
2271 preserve_times &= ~PRESERVE_DIR_TIMES;
2272 }
2273
2274 if (stdout_format) {
2275 if (am_server && log_format_has(stdout_format, 'I'))
2276 stdout_format_has_i = 2;
2277 else if (log_format_has(stdout_format, 'i'))
2278 stdout_format_has_i = itemize_changes | 1;
2279 if (!log_format_has(stdout_format, 'b')
2280 && !log_format_has(stdout_format, 'c')
2281 && !log_format_has(stdout_format, 'C'))
2282 log_before_transfer = !am_server;
2283 } else if (itemize_changes) {
2284 stdout_format = "%i %n%L";
2285 stdout_format_has_i = itemize_changes;
2286 log_before_transfer = !am_server;
2287 }
2288
2289 if (do_progress && !am_server) {
2290 if (!log_before_transfer && INFO_EQ(NAME, 0))
2291 parse_output_words(info_words, info_levels, "name", DEFAULT_PRIORITY);
2292 parse_output_words(info_words, info_levels, "flist2,progress", DEFAULT_PRIORITY);
2293 }
2294
2295 if (dry_run)
2296 do_xfers = 0;
2297
2298 set_io_timeout(io_timeout);
2299
2300 if (INFO_GTE(NAME, 1) && !stdout_format) {
2301 stdout_format = "%n%L";
2302 log_before_transfer = !am_server;
2303 }
2304 if (stdout_format_has_i || log_format_has(stdout_format, 'o'))
2305 stdout_format_has_o_or_i = 1;
2306
2307 if (logfile_name && !am_daemon) {
2308 if (!logfile_format) {
2309 logfile_format = "%i %n%L";
2310 logfile_format_has_i = logfile_format_has_o_or_i = 1;
2311 } else {
2312 if (log_format_has(logfile_format, 'i'))
2313 logfile_format_has_i = 1;
2314 if (logfile_format_has_i || log_format_has(logfile_format, 'o'))
2315 logfile_format_has_o_or_i = 1;
2316 }
2317 log_init(0);
2318 } else if (!am_daemon)
2319 logfile_format = NULL;
2320
2321 if (daemon_bwlimit && (!bwlimit || bwlimit > daemon_bwlimit))
2322 bwlimit = daemon_bwlimit;
2323 if (bwlimit) {
2324 bwlimit_writemax = (size_t)bwlimit * 128;
2325 if (bwlimit_writemax < 512)
2326 bwlimit_writemax = 512;
2327 }
2328
2329 if (append_mode) {
2330 if (whole_file > 0) {
2331 snprintf(err_buf, sizeof err_buf,
2332 "--append cannot be used with --whole-file\n");
2333 return 0;
2334 }
2335 if (refused_inplace) {
2336 create_refuse_error(refused_inplace);
2337 return 0;
2338 }
2339 inplace = 1;
2340 }
2341
2342 if (write_devices) {
2343 if (refused_inplace) {
2344 create_refuse_error(refused_inplace);
2345 return 0;
2346 }
2347 inplace = 1;
2348 }
2349
2350 if (delay_updates && !partial_dir)
2351 partial_dir = tmp_partialdir;
2352
2353 if (inplace) {
2354 #ifdef HAVE_FTRUNCATE
2355 if (partial_dir) {
2356 snprintf(err_buf, sizeof err_buf,
2357 "--%s cannot be used with --%s\n",
2358 append_mode ? "append" : "inplace",
2359 delay_updates ? "delay-updates" : "partial-dir");
2360 return 0;
2361 }
2362 /* --inplace implies --partial for refusal purposes, but we
2363 * clear the keep_partial flag for internal logic purposes. */
2364 if (refused_partial) {
2365 create_refuse_error(refused_partial);
2366 return 0;
2367 }
2368 keep_partial = 0;
2369 #else
2370 snprintf(err_buf, sizeof err_buf,
2371 "--%s is not supported on this %s\n",
2372 append_mode ? "append" : "inplace",
2373 am_server ? "server" : "client");
2374 return 0;
2375 #endif
2376 } else {
2377 if (keep_partial && !partial_dir && !am_server) {
2378 if ((arg = getenv("RSYNC_PARTIAL_DIR")) != NULL && *arg)
2379 partial_dir = strdup(arg);
2380 }
2381 if (partial_dir) {
2382 if (*partial_dir)
2383 clean_fname(partial_dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2384 if (!*partial_dir || strcmp(partial_dir, ".") == 0)
2385 partial_dir = NULL;
2386 if (!partial_dir && refused_partial) {
2387 create_refuse_error(refused_partial);
2388 return 0;
2389 }
2390 keep_partial = 1;
2391 }
2392 }
2393
2394 if (files_from) {
2395 char *h, *p;
2396 int q;
2397 if (argc > 2 || (!am_daemon && !am_server && argc == 1)) {
2398 usage(FERROR);
2399 exit_cleanup(RERR_SYNTAX);
2400 }
2401 if (strcmp(files_from, "-") == 0) {
2402 filesfrom_fd = 0;
2403 if (am_server)
2404 filesfrom_host = ""; /* reading from socket */
2405 } else if ((p = check_for_hostspec(files_from, &h, &q)) != 0) {
2406 if (am_server) {
2407 snprintf(err_buf, sizeof err_buf,
2408 "The --files-from sent to the server cannot specify a host.\n");
2409 return 0;
2410 }
2411 files_from = p;
2412 filesfrom_host = h;
2413 if (strcmp(files_from, "-") == 0) {
2414 snprintf(err_buf, sizeof err_buf,
2415 "Invalid --files-from remote filename\n");
2416 return 0;
2417 }
2418 } else {
2419 if (sanitize_paths)
2420 files_from = sanitize_path(NULL, files_from, NULL, 0, SP_DEFAULT);
2421 if (daemon_filter_list.head) {
2422 char *dir;
2423 if (!*files_from)
2424 goto options_rejected;
2425 dir = files_from + (*files_from == '/' ? module_dirlen : 0);
2426 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2427 if (check_filter(&daemon_filter_list, FLOG, dir, 0) < 0)
2428 goto options_rejected;
2429 }
2430 filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
2431 if (filesfrom_fd < 0) {
2432 snprintf(err_buf, sizeof err_buf,
2433 "failed to open files-from file %s: %s\n",
2434 files_from, strerror(errno));
2435 return 0;
2436 }
2437 }
2438 }
2439
2440 am_starting_up = 0;
2441
2442 return 1;
2443
2444 options_rejected:
2445 snprintf(err_buf, sizeof err_buf,
2446 "Your options have been rejected by the server.\n");
2447 return 0;
2448 }
2449
2450
2451 /**
2452 * Construct a filtered list of options to pass through from the
2453 * client to the server.
2454 *
2455 * This involves setting options that will tell the server how to
2456 * behave, and also filtering out options that are processed only
2457 * locally.
2458 **/
2459 void server_options(char **args, int *argc_p)
2460 {
2461 static char argstr[64];
2462 int ac = *argc_p;
2463 uchar where;
2464 char *arg;
2465 int i, x;
2466
2467 /* This should always remain first on the server's command-line. */
2468 args[ac++] = "--server";
2469
2470 if (daemon_over_rsh > 0) {
2471 args[ac++] = "--daemon";
2472 *argc_p = ac;
2473 /* if we're passing --daemon, we're done */
2474 return;
2475 }
2476
2477 if (!am_sender)
2478 args[ac++] = "--sender";
2479
2480 x = 1;
2481 argstr[0] = '-';
2482
2483 if (protect_args)
2484 argstr[x++] = 's';
2485
2486 for (i = 0; i < verbose; i++)
2487 argstr[x++] = 'v';
2488
2489 if (quiet && msgs2stderr)
2490 argstr[x++] = 'q';
2491 if (make_backups)
2492 argstr[x++] = 'b';
2493 if (update_only)
2494 argstr[x++] = 'u';
2495 if (!do_xfers) /* Note: NOT "dry_run"! */
2496 argstr[x++] = 'n';
2497 if (preserve_links)
2498 argstr[x++] = 'l';
2499 if ((xfer_dirs >= 2 && xfer_dirs < 4)
2500 || (xfer_dirs && !recurse && (list_only || (delete_mode && am_sender))))
2501 argstr[x++] = 'd';
2502 if (am_sender) {
2503 if (keep_dirlinks)
2504 argstr[x++] = 'K';
2505 if (prune_empty_dirs)
2506 argstr[x++] = 'm';
2507 if (omit_dir_times)
2508 argstr[x++] = 'O';
2509 if (omit_link_times)
2510 argstr[x++] = 'J';
2511 if (fuzzy_basis) {
2512 argstr[x++] = 'y';
2513 if (fuzzy_basis > 1)
2514 argstr[x++] = 'y';
2515 }
2516 } else {
2517 if (copy_links)
2518 argstr[x++] = 'L';
2519 if (copy_dirlinks)
2520 argstr[x++] = 'k';
2521 }
2522
2523 if (whole_file > 0)
2524 argstr[x++] = 'W';
2525 /* We don't need to send --no-whole-file, because it's the
2526 * default for remote transfers, and in any case old versions
2527 * of rsync will not understand it. */
2528
2529 if (preserve_hard_links) {
2530 argstr[x++] = 'H';
2531 if (preserve_hard_links > 1)
2532 argstr[x++] = 'H';
2533 }
2534 if (preserve_uid)
2535 argstr[x++] = 'o';
2536 if (preserve_gid)
2537 argstr[x++] = 'g';
2538 if (preserve_devices) /* ignore preserve_specials here */
2539 argstr[x++] = 'D';
2540 if (preserve_times)
2541 argstr[x++] = 't';
2542 if (preserve_atimes) {
2543 argstr[x++] = 'U';
2544 if (preserve_atimes > 1)
2545 argstr[x++] = 'U';
2546 }
2547 if (preserve_perms)
2548 argstr[x++] = 'p';
2549 else if (preserve_executability && am_sender)
2550 argstr[x++] = 'E';
2551 #ifdef SUPPORT_ACLS
2552 if (preserve_acls)
2553 argstr[x++] = 'A';
2554 #endif
2555 #ifdef SUPPORT_XATTRS
2556 if (preserve_xattrs) {
2557 argstr[x++] = 'X';
2558 if (preserve_xattrs > 1)
2559 argstr[x++] = 'X';
2560 }
2561 #endif
2562 if (recurse)
2563 argstr[x++] = 'r';
2564 if (always_checksum)
2565 argstr[x++] = 'c';
2566 if (cvs_exclude)
2567 argstr[x++] = 'C';
2568 if (ignore_times)
2569 argstr[x++] = 'I';
2570 if (relative_paths)
2571 argstr[x++] = 'R';
2572 if (one_file_system) {
2573 argstr[x++] = 'x';
2574 if (one_file_system > 1)
2575 argstr[x++] = 'x';
2576 }
2577 if (sparse_files)
2578 argstr[x++] = 'S';
2579 if (do_compression == CPRES_ZLIB)
2580 argstr[x++] = 'z';
2581
2582 set_allow_inc_recurse();
2583
2584 /* We don't really know the actual protocol_version at this point,
2585 * but checking the pre-negotiated value allows the user to use a
2586 * --protocol=29 override to avoid the use of this -eFLAGS opt. */
2587 if (protocol_version >= 30) {
2588 /* Use "eFlags" alias so that cull_options doesn't think that these are no-arg option letters. */
2589 #define eFlags argstr
2590 /* We make use of the -e option to let the server know about
2591 * any pre-release protocol version && some behavior flags. */
2592 eFlags[x++] = 'e';
2593 #if SUBPROTOCOL_VERSION != 0
2594 if (protocol_version == PROTOCOL_VERSION) {
2595 x += snprintf(argstr+x, sizeof argstr - x,
2596 "%d.%d",
2597 PROTOCOL_VERSION, SUBPROTOCOL_VERSION);
2598 } else
2599 #endif
2600 eFlags[x++] = '.';
2601 if (allow_inc_recurse)
2602 eFlags[x++] = 'i';
2603 #ifdef CAN_SET_SYMLINK_TIMES
2604 eFlags[x++] = 'L'; /* symlink time-setting support */
2605 #endif
2606 #ifdef ICONV_OPTION
2607 eFlags[x++] = 's'; /* symlink iconv translation support */
2608 #endif
2609 eFlags[x++] = 'f'; /* flist I/O-error safety support */
2610 eFlags[x++] = 'x'; /* xattr hardlink optimization not desired */
2611 eFlags[x++] = 'C'; /* support checksum seed order fix */
2612 eFlags[x++] = 'I'; /* support inplace_partial behavior */
2613 eFlags[x++] = 'v'; /* use varint for flist & compat flags; negotiate checksum */
2614 /* NOTE: Avoid using 'V' -- it was the high bit of a write_byte() that became write_varint(). */
2615 #undef eFlags
2616 }
2617
2618 if (x >= (int)sizeof argstr) { /* Not possible... */
2619 rprintf(FERROR, "argstr overflow in server_options().\n");
2620 exit_cleanup(RERR_MALLOC);
2621 }
2622
2623 argstr[x] = '\0';
2624
2625 if (x > 1)
2626 args[ac++] = argstr;
2627
2628 #ifdef ICONV_OPTION
2629 if (iconv_opt) {
2630 char *set = strchr(iconv_opt, ',');
2631 if (set)
2632 set++;
2633 else
2634 set = iconv_opt;
2635 if (asprintf(&arg, "--iconv=%s", set) < 0)
2636 goto oom;
2637 args[ac++] = arg;
2638 }
2639 #endif
2640
2641 if (protect_args && !local_server) /* unprotected args stop here */
2642 args[ac++] = NULL;
2643
2644 if (list_only > 1)
2645 args[ac++] = "--list-only";
2646
2647 /* This makes sure that the remote rsync can handle deleting with -d
2648 * sans -r because the --no-r option was added at the same time. */
2649 if (xfer_dirs && !recurse && delete_mode && am_sender)
2650 args[ac++] = "--no-r";
2651
2652 if (do_compression && do_compression_level != CLVL_NOT_SPECIFIED) {
2653 if (asprintf(&arg, "--compress-level=%d", do_compression_level) < 0)
2654 goto oom;
2655 args[ac++] = arg;
2656 }
2657
2658 if (preserve_devices) {
2659 /* Note: sending "--devices" would not be backward-compatible. */
2660 if (!preserve_specials)
2661 args[ac++] = "--no-specials"; /* -D is already set. */
2662 } else if (preserve_specials)
2663 args[ac++] = "--specials";
2664
2665 /* The server side doesn't use our log-format, but in certain
2666 * circumstances they need to know a little about the option. */
2667 if (stdout_format && am_sender) {
2668 /* Use --log-format, not --out-format, for compatibility. */
2669 if (stdout_format_has_i > 1)
2670 args[ac++] = "--log-format=%i%I";
2671 else if (stdout_format_has_i)
2672 args[ac++] = "--log-format=%i";
2673 else if (stdout_format_has_o_or_i)
2674 args[ac++] = "--log-format=%o";
2675 else if (!verbose)
2676 args[ac++] = "--log-format=X";
2677 }
2678
2679 if (block_size) {
2680 if (asprintf(&arg, "-B%lu", block_size) < 0)
2681 goto oom;
2682 args[ac++] = arg;
2683 }
2684
2685 if (io_timeout) {
2686 if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
2687 goto oom;
2688 args[ac++] = arg;
2689 }
2690
2691 if (bwlimit) {
2692 if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
2693 goto oom;
2694 args[ac++] = arg;
2695 }
2696
2697 if (backup_dir) {
2698 args[ac++] = "--backup-dir";
2699 args[ac++] = backup_dir;
2700 }
2701
2702 /* Only send --suffix if it specifies a non-default value. */
2703 if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
2704 /* We use the following syntax to avoid weirdness with '~'. */
2705 if (asprintf(&arg, "--suffix=%s", backup_suffix) < 0)
2706 goto oom;
2707 args[ac++] = arg;
2708 }
2709
2710 if (checksum_choice) {
2711 if (asprintf(&arg, "--checksum-choice=%s", checksum_choice) < 0)
2712 goto oom;
2713 args[ac++] = arg;
2714 }
2715
2716 if (do_compression == CPRES_ZLIBX)
2717 args[ac++] = "--new-compress";
2718 else if (compress_choice && do_compression == CPRES_ZLIB)
2719 args[ac++] = "--old-compress";
2720 else if (compress_choice) {
2721 if (asprintf(&arg, "--compress-choice=%s", compress_choice) < 0)
2722 goto oom;
2723 args[ac++] = arg;
2724 }
2725
2726 if (am_sender) {
2727 if (max_delete > 0) {
2728 if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
2729 goto oom;
2730 args[ac++] = arg;
2731 } else if (max_delete == 0)
2732 args[ac++] = "--max-delete=-1";
2733 if (min_size >= 0) {
2734 args[ac++] = "--min-size";
2735 args[ac++] = min_size_arg;
2736 }
2737 if (max_size >= 0) {
2738 args[ac++] = "--max-size";
2739 args[ac++] = max_size_arg;
2740 }
2741 if (delete_before)
2742 args[ac++] = "--delete-before";
2743 else if (delete_during == 2)
2744 args[ac++] = "--delete-delay";
2745 else if (delete_during)
2746 args[ac++] = "--delete-during";
2747 else if (delete_after)
2748 args[ac++] = "--delete-after";
2749 else if (delete_mode && !delete_excluded)
2750 args[ac++] = "--delete";
2751 if (delete_excluded)
2752 args[ac++] = "--delete-excluded";
2753 if (force_delete)
2754 args[ac++] = "--force";
2755 if (write_batch < 0)
2756 args[ac++] = "--only-write-batch=X";
2757 if (am_root > 1)
2758 args[ac++] = "--super";
2759 if (size_only)
2760 args[ac++] = "--size-only";
2761 if (do_stats)
2762 args[ac++] = "--stats";
2763 } else {
2764 if (skip_compress) {
2765 if (asprintf(&arg, "--skip-compress=%s", skip_compress) < 0)
2766 goto oom;
2767 args[ac++] = arg;
2768 }
2769 }
2770
2771 /* --delete-missing-args needs the cooperation of both sides, but
2772 * the sender can handle --ignore-missing-args by itself. */
2773 if (missing_args == 2)
2774 args[ac++] = "--delete-missing-args";
2775 else if (missing_args == 1 && !am_sender)
2776 args[ac++] = "--ignore-missing-args";
2777
2778 if (modify_window_set && am_sender) {
2779 char *fmt = modify_window < 0 ? "-@%d" : "--modify-window=%d";
2780 if (asprintf(&arg, fmt, modify_window) < 0)
2781 goto oom;
2782 args[ac++] = arg;
2783 }
2784
2785 if (checksum_seed) {
2786 if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
2787 goto oom;
2788 args[ac++] = arg;
2789 }
2790
2791 if (partial_dir && am_sender) {
2792 if (partial_dir != tmp_partialdir) {
2793 args[ac++] = "--partial-dir";
2794 args[ac++] = partial_dir;
2795 }
2796 if (delay_updates)
2797 args[ac++] = "--delay-updates";
2798 } else if (keep_partial && am_sender)
2799 args[ac++] = "--partial";
2800
2801 if (ignore_errors)
2802 args[ac++] = "--ignore-errors";
2803
2804 if (copy_unsafe_links)
2805 args[ac++] = "--copy-unsafe-links";
2806
2807 if (safe_symlinks)
2808 args[ac++] = "--safe-links";
2809
2810 if (numeric_ids)
2811 args[ac++] = "--numeric-ids";
2812
2813 if (use_qsort)
2814 args[ac++] = "--use-qsort";
2815
2816 if (am_sender) {
2817 if (usermap) {
2818 if (asprintf(&arg, "--usermap=%s", usermap) < 0)
2819 goto oom;
2820 args[ac++] = arg;
2821 }
2822
2823 if (groupmap) {
2824 if (asprintf(&arg, "--groupmap=%s", groupmap) < 0)
2825 goto oom;
2826 args[ac++] = arg;
2827 }
2828
2829 if (ignore_existing)
2830 args[ac++] = "--ignore-existing";
2831
2832 /* Backward compatibility: send --existing, not --ignore-non-existing. */
2833 if (ignore_non_existing)
2834 args[ac++] = "--existing";
2835
2836 if (tmpdir) {
2837 args[ac++] = "--temp-dir";
2838 args[ac++] = tmpdir;
2839 }
2840
2841 if (basis_dir[0]) {
2842 /* the server only needs this option if it is not the sender,
2843 * and it may be an older version that doesn't know this
2844 * option, so don't send it if client is the sender.
2845 */
2846 for (i = 0; i < basis_dir_cnt; i++) {
2847 args[ac++] = alt_dest_opt(0);
2848 args[ac++] = basis_dir[i];
2849 }
2850 }
2851 }
2852
2853 /* What flags do we need to send to the other side? */
2854 where = (am_server ? W_CLI : W_SRV) | (am_sender ? W_REC : W_SND);
2855 arg = make_output_option(info_words, info_levels, where);
2856 if (arg)
2857 args[ac++] = arg;
2858
2859 if (append_mode) {
2860 if (append_mode > 1)
2861 args[ac++] = "--append";
2862 args[ac++] = "--append";
2863 } else if (inplace)
2864 args[ac++] = "--inplace";
2865
2866 if (files_from && (!am_sender || filesfrom_host)) {
2867 if (filesfrom_host) {
2868 args[ac++] = "--files-from";
2869 args[ac++] = files_from;
2870 if (eol_nulls)
2871 args[ac++] = "--from0";
2872 } else {
2873 args[ac++] = "--files-from=-";
2874 args[ac++] = "--from0";
2875 }
2876 if (!relative_paths)
2877 args[ac++] = "--no-relative";
2878 }
2879 /* It's OK that this checks the upper-bound of the protocol_version. */
2880 if (relative_paths && !implied_dirs && (!am_sender || protocol_version >= 30))
2881 args[ac++] = "--no-implied-dirs";
2882
2883 if (write_devices && am_sender)
2884 args[ac++] = "--write-devices";
2885
2886 if (remove_source_files == 1)
2887 args[ac++] = "--remove-source-files";
2888 else if (remove_source_files)
2889 args[ac++] = "--remove-sent-files";
2890
2891 if (preallocate_files && am_sender)
2892 args[ac++] = "--preallocate";
2893
2894 if (open_noatime && preserve_atimes <= 1)
2895 args[ac++] = "--open-noatime";
2896
2897 if (ac > MAX_SERVER_ARGS) { /* Not possible... */
2898 rprintf(FERROR, "argc overflow in server_options().\n");
2899 exit_cleanup(RERR_MALLOC);
2900 }
2901
2902 if (remote_option_cnt) {
2903 int j;
2904 if (ac + remote_option_cnt > MAX_SERVER_ARGS) {
2905 rprintf(FERROR, "too many remote options specified.\n");
2906 exit_cleanup(RERR_SYNTAX);
2907 }
2908 for (j = 1; j <= remote_option_cnt; j++)
2909 args[ac++] = (char*)remote_options[j];
2910 }
2911
2912 *argc_p = ac;
2913 return;
2914
2915 oom:
2916 out_of_memory("server_options");
2917 }
2918
2919 /* If str points to a valid hostspec, return allocated memory containing the
2920 * [USER@]HOST part of the string, and set the path_start_ptr to the part of
2921 * the string after the host part. Otherwise, return NULL. If port_ptr is
2922 * non-NULL, we must be parsing an rsync:// URL hostname, and we will set
2923 * *port_ptr if a port number is found. Note that IPv6 IPs will have their
2924 * (required for parsing) [ and ] chars elided from the returned string. */
2925 static char *parse_hostspec(char *str, char **path_start_ptr, int *port_ptr)
2926 {
2927 char *s, *host_start = str;
2928 int hostlen = 0, userlen = 0;
2929 char *ret;
2930
2931 for (s = str; ; s++) {
2932 if (!*s) {
2933 /* It is only OK if we run out of string with rsync:// */
2934 if (!port_ptr)
2935 return NULL;
2936 if (!hostlen)
2937 hostlen = s - host_start;
2938 break;
2939 }
2940 if (*s == ':' || *s == '/') {
2941 if (!hostlen)
2942 hostlen = s - host_start;
2943 if (*s++ == '/') {
2944 if (!port_ptr)
2945 return NULL;
2946 } else if (port_ptr) {
2947 *port_ptr = atoi(s);
2948 while (isDigit(s)) s++;
2949 if (*s && *s++ != '/')
2950 return NULL;
2951 }
2952 break;
2953 }
2954 if (*s == '@') {
2955 userlen = s - str + 1;
2956 host_start = s + 1;
2957 } else if (*s == '[') {
2958 if (s != host_start++)
2959 return NULL;
2960 while (*s && *s != ']' && *s != '/') s++; /*SHARED ITERATOR*/
2961 hostlen = s - host_start;
2962 if (*s != ']' || (s[1] && s[1] != '/' && s[1] != ':') || !hostlen)
2963 return NULL;
2964 }
2965 }
2966
2967 *path_start_ptr = s;
2968 ret = new_array(char, userlen + hostlen + 1);
2969 if (userlen)
2970 strlcpy(ret, str, userlen + 1);
2971 strlcpy(ret + userlen, host_start, hostlen + 1);
2972 return ret;
2973 }
2974
2975 /* Look for a HOST specification of the form "HOST:PATH", "HOST::PATH", or
2976 * "rsync://HOST:PORT/PATH". If found, *host_ptr will be set to some allocated
2977 * memory with the HOST. If a daemon-accessing spec was specified, the value
2978 * of *port_ptr will contain a non-0 port number, otherwise it will be set to
2979 * 0. The return value is a pointer to the PATH. Note that the HOST spec can
2980 * be an IPv6 literal address enclosed in '[' and ']' (such as "[::1]" or
2981 * "[::ffff:127.0.0.1]") which is returned without the '[' and ']'. */
2982 char *check_for_hostspec(char *s, char **host_ptr, int *port_ptr)
2983 {
2984 char *path;
2985
2986 if (port_ptr && strncasecmp(URL_PREFIX, s, strlen(URL_PREFIX)) == 0) {
2987 *host_ptr = parse_hostspec(s + strlen(URL_PREFIX), &path, port_ptr);
2988 if (*host_ptr) {
2989 if (!*port_ptr)
2990 *port_ptr = -1; /* -1 indicates they want the default */
2991 return path;
2992 }
2993 }
2994
2995 *host_ptr = parse_hostspec(s, &path, NULL);
2996 if (!*host_ptr)
2997 return NULL;
2998
2999 if (*path == ':') {
3000 if (port_ptr && !*port_ptr)
3001 *port_ptr = -1;
3002 return path + 1;
3003 }
3004 if (port_ptr)
3005 *port_ptr = 0;
3006
3007 return path;
3008 }
rsync: a fast, versatile, remote (and local) file-copying tool