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Preparing for release of 3.1.0pre1
[rsync.git] / options.c
blobcebf25691e121ac485d8b11bec1f14355d1f6e07
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) 2002-2013 Wayne Davison
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, visit the http://fsf.org website.
20 */
21
22 #include "rsync.h"
23 #include "itypes.h"
24 #include <popt.h>
25 #include <zlib.h>
26
27 extern int module_id;
28 extern int local_server;
29 extern int sanitize_paths;
30 extern int daemon_over_rsh;
31 extern unsigned int module_dirlen;
32 extern filter_rule_list filter_list;
33 extern filter_rule_list daemon_filter_list;
34
35 int make_backups = 0;
36
37 /**
38 * If 1, send the whole file as literal data rather than trying to
39 * create an incremental diff.
40 *
41 * If -1, then look at whether we're local or remote and go by that.
42 *
43 * @sa disable_deltas_p()
44 **/
45 int whole_file = -1;
46
47 int append_mode = 0;
48 int keep_dirlinks = 0;
49 int copy_dirlinks = 0;
50 int copy_links = 0;
51 int preserve_links = 0;
52 int preserve_hard_links = 0;
53 int preserve_acls = 0;
54 int preserve_xattrs = 0;
55 int preserve_perms = 0;
56 int preserve_executability = 0;
57 int preserve_devices = 0;
58 int preserve_specials = 0;
59 int preserve_uid = 0;
60 int preserve_gid = 0;
61 int preserve_times = 0;
62 int update_only = 0;
63 int cvs_exclude = 0;
64 int dry_run = 0;
65 int do_xfers = 1;
66 int ignore_times = 0;
67 int delete_mode = 0;
68 int delete_during = 0;
69 int delete_before = 0;
70 int delete_after = 0;
71 int delete_excluded = 0;
72 int remove_source_files = 0;
73 int one_file_system = 0;
74 int protocol_version = PROTOCOL_VERSION;
75 int sparse_files = 0;
76 int preallocate_files = 0;
77 int do_compression = 0;
78 int def_compress_level = Z_DEFAULT_COMPRESSION;
79 int am_root = 0; /* 0 = normal, 1 = root, 2 = --super, -1 = --fake-super */
80 int am_server = 0;
81 int am_sender = 0;
82 int am_starting_up = 1;
83 int relative_paths = -1;
84 int implied_dirs = 1;
85 int missing_args = 0; /* 0 = FERROR_XFER, 1 = ignore, 2 = delete */
86 int numeric_ids = 0;
87 int msgs2stderr = 0;
88 int allow_8bit_chars = 0;
89 int force_delete = 0;
90 int io_timeout = 0;
91 int prune_empty_dirs = 0;
92 int use_qsort = 0;
93 char *files_from = NULL;
94 int filesfrom_fd = -1;
95 char *filesfrom_host = NULL;
96 int eol_nulls = 0;
97 int protect_args = -1;
98 int human_readable = 1;
99 int recurse = 0;
100 int allow_inc_recurse = 1;
101 int xfer_dirs = -1;
102 int am_daemon = 0;
103 int connect_timeout = 0;
104 int keep_partial = 0;
105 int safe_symlinks = 0;
106 int copy_unsafe_links = 0;
107 int munge_symlinks = 0;
108 int size_only = 0;
109 int daemon_bwlimit = 0;
110 int bwlimit = 0;
111 int fuzzy_basis = 0;
112 size_t bwlimit_writemax = 0;
113 int ignore_existing = 0;
114 int ignore_non_existing = 0;
115 int need_messages_from_generator = 0;
116 int max_delete = INT_MIN;
117 OFF_T max_size = -1;
118 OFF_T min_size = -1;
119 int ignore_errors = 0;
120 int modify_window = 0;
121 int blocking_io = -1;
122 int checksum_seed = 0;
123 int inplace = 0;
124 int delay_updates = 0;
125 long block_size = 0; /* "long" because popt can't set an int32. */
126 char *skip_compress = NULL;
127 item_list dparam_list = EMPTY_ITEM_LIST;
128
129 /** Network address family. **/
130 int default_af_hint
131 #ifdef INET6
132 = 0; /* Any protocol */
133 #else
134 = AF_INET; /* Must use IPv4 */
135 # ifdef AF_INET6
136 # undef AF_INET6
137 # endif
138 # define AF_INET6 AF_INET /* make -6 option a no-op */
139 #endif
140
141 /** Do not go into the background when run as --daemon. Good
142 * for debugging and required for running as a service on W32,
143 * or under Unix process-monitors. **/
144 int no_detach
145 #if defined _WIN32 || defined __WIN32__
146 = 1;
147 #else
148 = 0;
149 #endif
150
151 int write_batch = 0;
152 int read_batch = 0;
153 int backup_dir_len = 0;
154 int backup_suffix_len;
155 unsigned int backup_dir_remainder;
156
157 char *backup_suffix = NULL;
158 char *tmpdir = NULL;
159 char *partial_dir = NULL;
160 char *basis_dir[MAX_BASIS_DIRS+1];
161 char *config_file = NULL;
162 char *shell_cmd = NULL;
163 char *logfile_name = NULL;
164 char *logfile_format = NULL;
165 char *stdout_format = NULL;
166 char *password_file = NULL;
167 char *rsync_path = RSYNC_PATH;
168 char *backup_dir = NULL;
169 char backup_dir_buf[MAXPATHLEN];
170 char *sockopts = NULL;
171 char *usermap = NULL;
172 char *groupmap = NULL;
173 int rsync_port = 0;
174 int compare_dest = 0;
175 int copy_dest = 0;
176 int link_dest = 0;
177 int basis_dir_cnt = 0;
178 char *dest_option = NULL;
179
180 static int remote_option_alloc = 0;
181 int remote_option_cnt = 0;
182 const char **remote_options = NULL;
183
184 int quiet = 0;
185 int output_motd = 1;
186 int log_before_transfer = 0;
187 int stdout_format_has_i = 0;
188 int stdout_format_has_o_or_i = 0;
189 int logfile_format_has_i = 0;
190 int logfile_format_has_o_or_i = 0;
191 int always_checksum = 0;
192 int list_only = 0;
193
194 #define MAX_BATCH_NAME_LEN 256 /* Must be less than MAXPATHLEN-13 */
195 char *batch_name = NULL;
196
197 int need_unsorted_flist = 0;
198 #ifdef ICONV_OPTION
199 char *iconv_opt = ICONV_OPTION;
200 #endif
201
202 struct chmod_mode_struct *chmod_modes = NULL;
203
204 static const char *debug_verbosity[] = {
205 /*0*/ NULL,
206 /*1*/ NULL,
207 /*2*/ "BIND,CMD,CONNECT,DEL,DELTASUM,DUP,FILTER,FLIST,ICONV",
208 /*3*/ "ACL,BACKUP,CONNECT2,DELTASUM2,DEL2,EXIT,FILTER2,FLIST2,FUZZY,GENR,OWN,RECV,SEND,TIME",
209 /*4*/ "CMD2,DELTASUM3,DEL3,EXIT2,FLIST3,ICONV2,OWN2,PROTO,TIME2",
210 /*5*/ "CHDIR,DELTASUM4,FLIST4,FUZZY2,HASH,HLINK",
211 };
212
213 #define MAX_VERBOSITY ((int)(sizeof debug_verbosity / sizeof debug_verbosity[0]) - 1)
214
215 static const char *info_verbosity[1+MAX_VERBOSITY] = {
216 /*0*/ NULL,
217 /*1*/ "COPY,DEL,FLIST,MISC,NAME,STATS,SYMSAFE",
218 /*2*/ "BACKUP,MISC2,MOUNT,NAME2,REMOVE,SKIP",
219 };
220
221 #define MAX_OUT_LEVEL 4 /* The largest N allowed for any flagN word. */
222
223 short info_levels[COUNT_INFO], debug_levels[COUNT_DEBUG];
224
225 #define DEFAULT_PRIORITY 0 /* Default/implied/--verbose set values. */
226 #define HELP_PRIORITY 1 /* The help output uses this level. */
227 #define USER_PRIORITY 2 /* User-specified via --info or --debug */
228 #define LIMIT_PRIORITY 3 /* Overriding priority when limiting values. */
229
230 #define W_CLI (1<<0) /* client side */
231 #define W_SRV (1<<1) /* server side */
232 #define W_SND (1<<2) /* sending side */
233 #define W_REC (1<<3) /* receiving side */
234
235 struct output_struct {
236 char *name; /* The name of the info/debug flag. */
237 char *help; /* The description of the info/debug flag. */
238 uchar namelen; /* The length of the name string. */
239 uchar flag; /* The flag's value, for consistency check. */
240 uchar where; /* Bits indicating where the flag is used. */
241 uchar priority; /* See *_PRIORITY defines. */
242 };
243
244 #define INFO_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, INFO_##flag, where, 0 }
245
246 static struct output_struct info_words[COUNT_INFO+1] = {
247 INFO_WORD(BACKUP, W_REC, "Mention files backed up"),
248 INFO_WORD(COPY, W_REC, "Mention files copied locally on the receiving side"),
249 INFO_WORD(DEL, W_REC, "Mention deletions on the receiving side"),
250 INFO_WORD(FLIST, W_CLI, "Mention file-list receiving/sending (levels 1-2)"),
251 INFO_WORD(MISC, W_SND|W_REC, "Mention miscellaneous information (levels 1-2)"),
252 INFO_WORD(MOUNT, W_SND|W_REC, "Mention mounts that were found or skipped"),
253 INFO_WORD(NAME, W_SND|W_REC, "Mention 1) updated file/dir names, 2) unchanged names"),
254 INFO_WORD(PROGRESS, W_CLI, "Mention 1) per-file progress or 2) total transfer progress"),
255 INFO_WORD(REMOVE, W_SND, "Mention files removed on the sending side"),
256 INFO_WORD(SKIP, W_REC, "Mention files that are skipped due to options used"),
257 INFO_WORD(STATS, W_CLI|W_SRV, "Mention statistics at end of run (levels 1-3)"),
258 INFO_WORD(SYMSAFE, W_SND|W_REC, "Mention symlinks that are unsafe"),
259 { NULL, "--info", 0, 0, 0, 0 }
260 };
261
262 #define DEBUG_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, DEBUG_##flag, where, 0 }
263
264 static struct output_struct debug_words[COUNT_DEBUG+1] = {
265 DEBUG_WORD(ACL, W_SND|W_REC, "Debug extra ACL info"),
266 DEBUG_WORD(BACKUP, W_REC, "Debug backup actions (levels 1-2)"),
267 DEBUG_WORD(BIND, W_CLI, "Debug socket bind actions"),
268 DEBUG_WORD(CHDIR, W_CLI|W_SRV, "Debug when the current directory changes"),
269 DEBUG_WORD(CONNECT, W_CLI, "Debug connection events (levels 1-2)"),
270 DEBUG_WORD(CMD, W_CLI, "Debug commands+options that are issued (levels 1-2)"),
271 DEBUG_WORD(DEL, W_REC, "Debug delete actions (levels 1-3)"),
272 DEBUG_WORD(DELTASUM, W_SND|W_REC, "Debug delta-transfer checksumming (levels 1-4)"),
273 DEBUG_WORD(DUP, W_REC, "Debug weeding of duplicate names"),
274 DEBUG_WORD(EXIT, W_CLI|W_SRV, "Debug exit events (levels 1-3)"),
275 DEBUG_WORD(FILTER, W_SND|W_REC, "Debug filter actions (levels 1-2)"),
276 DEBUG_WORD(FLIST, W_SND|W_REC, "Debug file-list operations (levels 1-4)"),
277 DEBUG_WORD(FUZZY, W_REC, "Debug fuzzy scoring (levels 1-2)"),
278 DEBUG_WORD(GENR, W_REC, "Debug generator functions"),
279 DEBUG_WORD(HASH, W_SND|W_REC, "Debug hashtable code"),
280 DEBUG_WORD(HLINK, W_SND|W_REC, "Debug hard-link actions (levels 1-3)"),
281 DEBUG_WORD(ICONV, W_CLI|W_SRV, "Debug iconv character conversions (levels 1-2)"),
282 DEBUG_WORD(IO, W_CLI|W_SRV, "Debug I/O routines (levels 1-4)"),
283 DEBUG_WORD(OWN, W_REC, "Debug ownership changes in users & groups (levels 1-2)"),
284 DEBUG_WORD(PROTO, W_CLI|W_SRV, "Debug protocol information"),
285 DEBUG_WORD(RECV, W_REC, "Debug receiver functions"),
286 DEBUG_WORD(SEND, W_SND, "Debug sender functions"),
287 DEBUG_WORD(TIME, W_REC, "Debug setting of modified times (levels 1-2)"),
288 { NULL, "--debug", 0, 0, 0, 0 }
289 };
290
291 static int verbose = 0;
292 static int do_stats = 0;
293 static int do_progress = 0;
294 static int daemon_opt; /* sets am_daemon after option error-reporting */
295 static int omit_dir_times = 0;
296 static int omit_link_times = 0;
297 static int F_option_cnt = 0;
298 static int modify_window_set;
299 static int itemize_changes = 0;
300 static int refused_delete, refused_archive_part, refused_compress;
301 static int refused_partial, refused_progress, refused_delete_before;
302 static int refused_delete_during;
303 static int refused_inplace, refused_no_iconv;
304 static BOOL usermap_via_chown, groupmap_via_chown;
305 #ifdef HAVE_SETVBUF
306 static char *outbuf_mode;
307 #endif
308 static char *bwlimit_arg, *max_size_arg, *min_size_arg;
309 static char tmp_partialdir[] = ".~tmp~";
310
311 /** Local address to bind. As a character string because it's
312 * interpreted by the IPv6 layer: should be a numeric IP4 or IP6
313 * address, or a hostname. **/
314 char *bind_address;
315
316 static void output_item_help(struct output_struct *words);
317
318 /* This constructs a string that represents all the options set for either
319 * the --info or --debug setting, skipping any implied options (by -v, etc.).
320 * This is used both when conveying the user's options to the server, and
321 * when the help output wants to tell the user what options are implied. */
322 static char *make_output_option(struct output_struct *words, short *levels, uchar where)
323 {
324 char *str = words == info_words ? "--info=" : "--debug=";
325 int j, counts[MAX_OUT_LEVEL+1], pos, skipped = 0, len = 0, max = 0, lev = 0;
326 int word_count = words == info_words ? COUNT_INFO : COUNT_DEBUG;
327 char *buf;
328
329 memset(counts, 0, sizeof counts);
330
331 for (j = 0; words[j].name; j++) {
332 if (words[j].flag != j) {
333 rprintf(FERROR, "rsync: internal error on %s%s: %d != %d\n",
334 words == info_words ? "INFO_" : "DEBUG_",
335 words[j].name, words[j].flag, j);
336 exit_cleanup(RERR_UNSUPPORTED);
337 }
338 if (!(words[j].where & where))
339 continue;
340 if (words[j].priority == DEFAULT_PRIORITY) {
341 /* Implied items don't need to be mentioned. */
342 skipped++;
343 continue;
344 }
345 len += len ? 1 : strlen(str);
346 len += strlen(words[j].name);
347 len += levels[j] == 1 ? 0 : 1;
348
349 if (words[j].priority == HELP_PRIORITY)
350 continue; /* no abbreviating for help */
351
352 assert(levels[j] <= MAX_OUT_LEVEL);
353 if (++counts[levels[j]] > max) {
354 /* Determine which level has the most items. */
355 lev = levels[j];
356 max = counts[lev];
357 }
358 }
359
360 /* Sanity check the COUNT_* define against the length of the table. */
361 if (j != word_count) {
362 rprintf(FERROR, "rsync: internal error: %s is wrong! (%d != %d)\n",
363 words == info_words ? "COUNT_INFO" : "COUNT_DEBUG",
364 j, word_count);
365 exit_cleanup(RERR_UNSUPPORTED);
366 }
367
368 if (!len)
369 return NULL;
370
371 len++;
372 if (!(buf = new_array(char, len)))
373 out_of_memory("make_output_option");
374 pos = 0;
375
376 if (skipped || max < 5)
377 lev = -1;
378 else {
379 if (lev == 0)
380 pos += snprintf(buf, len, "%sNONE", str);
381 else if (lev == 1)
382 pos += snprintf(buf, len, "%sALL", str);
383 else
384 pos += snprintf(buf, len, "%sALL%d", str, lev);
385 }
386
387 for (j = 0; words[j].name && pos < len; j++) {
388 if (words[j].priority == DEFAULT_PRIORITY || levels[j] == lev || !(words[j].where & where))
389 continue;
390 if (pos)
391 buf[pos++] = ',';
392 else
393 pos += strlcpy(buf+pos, str, len-pos);
394 if (pos < len)
395 pos += strlcpy(buf+pos, words[j].name, len-pos);
396 /* Level 1 is implied by the name alone. */
397 if (levels[j] != 1 && pos < len)
398 buf[pos++] = '0' + levels[j];
399 }
400
401 buf[pos] = '\0';
402
403 return buf;
404 }
405
406 static void parse_output_words(struct output_struct *words, short *levels,
407 const char *str, uchar priority)
408 {
409 const char *s;
410 int j, len, lev;
411
412 if (!str)
413 return;
414
415 while (*str) {
416 if ((s = strchr(str, ',')) != NULL)
417 len = s++ - str;
418 else
419 len = strlen(str);
420 while (len && isDigit(str+len-1))
421 len--;
422 lev = isDigit(str+len) ? atoi(str+len) : 1;
423 if (lev > MAX_OUT_LEVEL)
424 lev = MAX_OUT_LEVEL;
425 if (len == 4 && strncasecmp(str, "help", 4) == 0) {
426 output_item_help(words);
427 exit_cleanup(0);
428 }
429 if (len == 4 && strncasecmp(str, "none", 4) == 0)
430 len = lev = 0;
431 else if (len == 3 && strncasecmp(str, "all", 3) == 0)
432 len = 0;
433 for (j = 0; words[j].name; j++) {
434 if (!len
435 || (len == words[j].namelen && strncasecmp(str, words[j].name, len) == 0)) {
436 if (priority >= words[j].priority) {
437 words[j].priority = priority;
438 levels[j] = lev;
439 }
440 if (len)
441 break;
442 }
443 }
444 if (len && !words[j].name) {
445 rprintf(FERROR, "Unknown %s item: \"%.*s\"\n",
446 words[j].help, len, str);
447 exit_cleanup(RERR_SYNTAX);
448 }
449 if (!s)
450 break;
451 str = s;
452 }
453 }
454
455 /* Tell the user what all the info or debug flags mean. */
456 static void output_item_help(struct output_struct *words)
457 {
458 short *levels = words == info_words ? info_levels : debug_levels;
459 const char **verbosity = words == info_words ? info_verbosity : debug_verbosity;
460 char buf[128], *opt, *fmt = "%-10s %s\n";
461 int j;
462
463 reset_output_levels();
464
465 rprintf(FINFO, "Use OPT or OPT1 for level 1 output, OPT2 for level 2, etc.; OPT0 silences.\n");
466 rprintf(FINFO, "\n");
467 for (j = 0; words[j].name; j++)
468 rprintf(FINFO, fmt, words[j].name, words[j].help);
469 rprintf(FINFO, "\n");
470
471 snprintf(buf, sizeof buf, "Set all %s options (e.g. all%d)",
472 words[j].help, MAX_OUT_LEVEL);
473 rprintf(FINFO, fmt, "ALL", buf);
474
475 snprintf(buf, sizeof buf, "Silence all %s options (same as all0)",
476 words[j].help);
477 rprintf(FINFO, fmt, "NONE", buf);
478
479 rprintf(FINFO, fmt, "HELP", "Output this help message");
480 rprintf(FINFO, "\n");
481 rprintf(FINFO, "Options added for each increase in verbose level:\n");
482
483 for (j = 1; j <= MAX_VERBOSITY; j++) {
484 parse_output_words(words, levels, verbosity[j], HELP_PRIORITY);
485 opt = make_output_option(words, levels, W_CLI|W_SRV|W_SND|W_REC);
486 if (opt) {
487 rprintf(FINFO, "%d) %s\n", j, strchr(opt, '=')+1);
488 free(opt);
489 }
490 reset_output_levels();
491 }
492 }
493
494 /* The --verbose option now sets info+debug flags. */
495 static void set_output_verbosity(int level, uchar priority)
496 {
497 int j;
498
499 if (level > MAX_VERBOSITY)
500 level = MAX_VERBOSITY;
501
502 for (j = 1; j <= level; j++) {
503 parse_output_words(info_words, info_levels, info_verbosity[j], priority);
504 parse_output_words(debug_words, debug_levels, debug_verbosity[j], priority);
505 }
506 }
507
508 /* Limit the info+debug flag levels given a verbose-option level limit. */
509 void limit_output_verbosity(int level)
510 {
511 short info_limits[COUNT_INFO], debug_limits[COUNT_DEBUG];
512 int j;
513
514 if (level > MAX_VERBOSITY)
515 return;
516
517 memset(info_limits, 0, sizeof info_limits);
518 memset(debug_limits, 0, sizeof debug_limits);
519
520 /* Compute the level limits in the above arrays. */
521 for (j = 1; j <= level; j++) {
522 parse_output_words(info_words, info_limits, info_verbosity[j], LIMIT_PRIORITY);
523 parse_output_words(debug_words, debug_limits, debug_verbosity[j], LIMIT_PRIORITY);
524 }
525
526 for (j = 0; j < COUNT_INFO; j++) {
527 if (info_levels[j] > info_limits[j])
528 info_levels[j] = info_limits[j];
529 }
530
531 for (j = 0; j < COUNT_DEBUG; j++) {
532 if (debug_levels[j] > debug_limits[j])
533 debug_levels[j] = debug_limits[j];
534 }
535 }
536
537 void reset_output_levels(void)
538 {
539 int j;
540
541 memset(info_levels, 0, sizeof info_levels);
542 memset(debug_levels, 0, sizeof debug_levels);
543
544 for (j = 0; j < COUNT_INFO; j++)
545 info_words[j].priority = DEFAULT_PRIORITY;
546
547 for (j = 0; j < COUNT_DEBUG; j++)
548 debug_words[j].priority = DEFAULT_PRIORITY;
549 }
550
551 void negate_output_levels(void)
552 {
553 int j;
554
555 for (j = 0; j < COUNT_INFO; j++)
556 info_levels[j] *= -1;
557
558 for (j = 0; j < COUNT_DEBUG; j++)
559 debug_levels[j] *= -1;
560 }
561
562 static void print_rsync_version(enum logcode f)
563 {
564 char *subprotocol = "";
565 char const *got_socketpair = "no ";
566 char const *have_inplace = "no ";
567 char const *hardlinks = "no ";
568 char const *prealloc = "no ";
569 char const *symtimes = "no ";
570 char const *acls = "no ";
571 char const *xattrs = "no ";
572 char const *links = "no ";
573 char const *iconv = "no ";
574 char const *ipv6 = "no ";
575 STRUCT_STAT *dumstat;
576
577 #if SUBPROTOCOL_VERSION != 0
578 if (asprintf(&subprotocol, ".PR%d", SUBPROTOCOL_VERSION) < 0)
579 out_of_memory("print_rsync_version");
580 #endif
581 #ifdef HAVE_SOCKETPAIR
582 got_socketpair = "";
583 #endif
584 #ifdef HAVE_FTRUNCATE
585 have_inplace = "";
586 #endif
587 #ifdef SUPPORT_HARD_LINKS
588 hardlinks = "";
589 #endif
590 #ifdef SUPPORT_PREALLOCATION
591 prealloc = "";
592 #endif
593 #ifdef SUPPORT_ACLS
594 acls = "";
595 #endif
596 #ifdef SUPPORT_XATTRS
597 xattrs = "";
598 #endif
599 #ifdef SUPPORT_LINKS
600 links = "";
601 #endif
602 #ifdef INET6
603 ipv6 = "";
604 #endif
605 #ifdef ICONV_OPTION
606 iconv = "";
607 #endif
608 #ifdef CAN_SET_SYMLINK_TIMES
609 symtimes = "";
610 #endif
611
612 rprintf(f, "%s version %s protocol version %d%s\n",
613 RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION, subprotocol);
614 rprintf(f, "Copyright (C) 1996-2013 by Andrew Tridgell, Wayne Davison, and others.\n");
615 rprintf(f, "Web site: http://rsync.samba.org/\n");
616 rprintf(f, "Capabilities:\n");
617 rprintf(f, " %d-bit files, %d-bit inums, %d-bit timestamps, %d-bit long ints,\n",
618 (int)(sizeof (OFF_T) * 8),
619 (int)(sizeof dumstat->st_ino * 8), /* Don't check ino_t! */
620 (int)(sizeof (time_t) * 8),
621 (int)(sizeof (int64) * 8));
622 rprintf(f, " %ssocketpairs, %shardlinks, %ssymlinks, %sIPv6, batchfiles, %sinplace,\n",
623 got_socketpair, hardlinks, links, ipv6, have_inplace);
624 rprintf(f, " %sappend, %sACLs, %sxattrs, %siconv, %ssymtimes, %sprealloc\n",
625 have_inplace, acls, xattrs, iconv, symtimes, prealloc);
626
627 #ifdef MAINTAINER_MODE
628 rprintf(f, "Panic Action: \"%s\"\n", get_panic_action());
629 #endif
630
631 #if SIZEOF_INT64 < 8
632 rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
633 #endif
634 if (sizeof (int64) != SIZEOF_INT64) {
635 rprintf(f,
636 "WARNING: size mismatch in SIZEOF_INT64 define (%d != %d)\n",
637 (int) SIZEOF_INT64, (int) sizeof (int64));
638 }
639
640 rprintf(f,"\n");
641 rprintf(f,"rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n");
642 rprintf(f,"are welcome to redistribute it under certain conditions. See the GNU\n");
643 rprintf(f,"General Public Licence for details.\n");
644 }
645
646
647 void usage(enum logcode F)
648 {
649 print_rsync_version(F);
650
651 rprintf(F,"\n");
652 rprintf(F,"rsync is a file transfer program capable of efficient remote update\n");
653 rprintf(F,"via a fast differencing algorithm.\n");
654
655 rprintf(F,"\n");
656 rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... DEST\n");
657 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
658 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
659 rprintf(F," or rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST\n");
660 rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC [DEST]\n");
661 rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
662 rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
663 rprintf(F,"The ':' usages connect via remote shell, while '::' & 'rsync://' usages connect\n");
664 rprintf(F,"to an rsync daemon, and require SRC or DEST to start with a module name.\n");
665 rprintf(F,"\n");
666 rprintf(F,"Options\n");
667 rprintf(F," -v, --verbose increase verbosity\n");
668 rprintf(F," --info=FLAGS fine-grained informational verbosity\n");
669 rprintf(F," --debug=FLAGS fine-grained debug verbosity\n");
670 rprintf(F," --msgs2stderr special output handling for debugging\n");
671 rprintf(F," -q, --quiet suppress non-error messages\n");
672 rprintf(F," --no-motd suppress daemon-mode MOTD (see manpage caveat)\n");
673 rprintf(F," -c, --checksum skip based on checksum, not mod-time & size\n");
674 rprintf(F," -a, --archive archive mode; equals -rlptgoD (no -H,-A,-X)\n");
675 rprintf(F," --no-OPTION turn off an implied OPTION (e.g. --no-D)\n");
676 rprintf(F," -r, --recursive recurse into directories\n");
677 rprintf(F," -R, --relative use relative path names\n");
678 rprintf(F," --no-implied-dirs don't send implied dirs with --relative\n");
679 rprintf(F," -b, --backup make backups (see --suffix & --backup-dir)\n");
680 rprintf(F," --backup-dir=DIR make backups into hierarchy based in DIR\n");
681 rprintf(F," --suffix=SUFFIX set backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX);
682 rprintf(F," -u, --update skip files that are newer on the receiver\n");
683 rprintf(F," --inplace update destination files in-place (SEE MAN PAGE)\n");
684 rprintf(F," --append append data onto shorter files\n");
685 rprintf(F," --append-verify like --append, but with old data in file checksum\n");
686 rprintf(F," -d, --dirs transfer directories without recursing\n");
687 rprintf(F," -l, --links copy symlinks as symlinks\n");
688 rprintf(F," -L, --copy-links transform symlink into referent file/dir\n");
689 rprintf(F," --copy-unsafe-links only \"unsafe\" symlinks are transformed\n");
690 rprintf(F," --safe-links ignore symlinks that point outside the source tree\n");
691 rprintf(F," --munge-links munge symlinks to make them safer (but unusable)\n");
692 rprintf(F," -k, --copy-dirlinks transform symlink to a dir into referent dir\n");
693 rprintf(F," -K, --keep-dirlinks treat symlinked dir on receiver as dir\n");
694 rprintf(F," -H, --hard-links preserve hard links\n");
695 rprintf(F," -p, --perms preserve permissions\n");
696 rprintf(F," -E, --executability preserve the file's executability\n");
697 rprintf(F," --chmod=CHMOD affect file and/or directory permissions\n");
698 #ifdef SUPPORT_ACLS
699 rprintf(F," -A, --acls preserve ACLs (implies --perms)\n");
700 #endif
701 #ifdef SUPPORT_XATTRS
702 rprintf(F," -X, --xattrs preserve extended attributes\n");
703 #endif
704 rprintf(F," -o, --owner preserve owner (super-user only)\n");
705 rprintf(F," -g, --group preserve group\n");
706 rprintf(F," --devices preserve device files (super-user only)\n");
707 rprintf(F," --specials preserve special files\n");
708 rprintf(F," -D same as --devices --specials\n");
709 rprintf(F," -t, --times preserve modification times\n");
710 rprintf(F," -O, --omit-dir-times omit directories from --times\n");
711 rprintf(F," -J, --omit-link-times omit symlinks from --times\n");
712 rprintf(F," --super receiver attempts super-user activities\n");
713 #ifdef SUPPORT_XATTRS
714 rprintf(F," --fake-super store/recover privileged attrs using xattrs\n");
715 #endif
716 rprintf(F," -S, --sparse handle sparse files efficiently\n");
717 #ifdef SUPPORT_PREALLOCATION
718 rprintf(F," --preallocate allocate dest files before writing them\n");
719 #else
720 rprintf(F," --preallocate pre-allocate dest files on remote receiver\n");
721 #endif
722 rprintf(F," -n, --dry-run perform a trial run with no changes made\n");
723 rprintf(F," -W, --whole-file copy files whole (without delta-xfer algorithm)\n");
724 rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
725 rprintf(F," -B, --block-size=SIZE force a fixed checksum block-size\n");
726 rprintf(F," -e, --rsh=COMMAND specify the remote shell to use\n");
727 rprintf(F," --rsync-path=PROGRAM specify the rsync to run on the remote machine\n");
728 rprintf(F," --existing skip creating new files on receiver\n");
729 rprintf(F," --ignore-existing skip updating files that already exist on receiver\n");
730 rprintf(F," --remove-source-files sender removes synchronized files (non-dirs)\n");
731 rprintf(F," --del an alias for --delete-during\n");
732 rprintf(F," --delete delete extraneous files from destination dirs\n");
733 rprintf(F," --delete-before receiver deletes before transfer, not during\n");
734 rprintf(F," --delete-during receiver deletes during the transfer\n");
735 rprintf(F," --delete-delay find deletions during, delete after\n");
736 rprintf(F," --delete-after receiver deletes after transfer, not during\n");
737 rprintf(F," --delete-excluded also delete excluded files from destination dirs\n");
738 rprintf(F," --ignore-missing-args ignore missing source args without error\n");
739 rprintf(F," --delete-missing-args delete missing source args from destination\n");
740 rprintf(F," --ignore-errors delete even if there are I/O errors\n");
741 rprintf(F," --force force deletion of directories even if not empty\n");
742 rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
743 rprintf(F," --max-size=SIZE don't transfer any file larger than SIZE\n");
744 rprintf(F," --min-size=SIZE don't transfer any file smaller than SIZE\n");
745 rprintf(F," --partial keep partially transferred files\n");
746 rprintf(F," --partial-dir=DIR put a partially transferred file into DIR\n");
747 rprintf(F," --delay-updates put all updated files into place at transfer's end\n");
748 rprintf(F," -m, --prune-empty-dirs prune empty directory chains from the file-list\n");
749 rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
750 rprintf(F," --usermap=STRING custom username mapping\n");
751 rprintf(F," --groupmap=STRING custom groupname mapping\n");
752 rprintf(F," --chown=USER:GROUP simple username/groupname mapping\n");
753 rprintf(F," --timeout=SECONDS set I/O timeout in seconds\n");
754 rprintf(F," --contimeout=SECONDS set daemon connection timeout in seconds\n");
755 rprintf(F," -I, --ignore-times don't skip files that match in size and mod-time\n");
756 rprintf(F," -M, --remote-option=OPTION send OPTION to the remote side only\n");
757 rprintf(F," --size-only skip files that match in size\n");
758 rprintf(F," --modify-window=NUM compare mod-times with reduced accuracy\n");
759 rprintf(F," -T, --temp-dir=DIR create temporary files in directory DIR\n");
760 rprintf(F," -y, --fuzzy find similar file for basis if no dest file\n");
761 rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
762 rprintf(F," --copy-dest=DIR ... and include copies of unchanged files\n");
763 rprintf(F," --link-dest=DIR hardlink to files in DIR when unchanged\n");
764 rprintf(F," -z, --compress compress file data during the transfer\n");
765 rprintf(F," --compress-level=NUM explicitly set compression level\n");
766 rprintf(F," --skip-compress=LIST skip compressing files with a suffix in LIST\n");
767 rprintf(F," -C, --cvs-exclude auto-ignore files the same way CVS does\n");
768 rprintf(F," -f, --filter=RULE add a file-filtering RULE\n");
769 rprintf(F," -F same as --filter='dir-merge /.rsync-filter'\n");
770 rprintf(F," repeated: --filter='- .rsync-filter'\n");
771 rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
772 rprintf(F," --exclude-from=FILE read exclude patterns from FILE\n");
773 rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
774 rprintf(F," --include-from=FILE read include patterns from FILE\n");
775 rprintf(F," --files-from=FILE read list of source-file names from FILE\n");
776 rprintf(F," -0, --from0 all *-from/filter files are delimited by 0s\n");
777 rprintf(F," -s, --protect-args no space-splitting; only wildcard special-chars\n");
778 rprintf(F," --address=ADDRESS bind address for outgoing socket to daemon\n");
779 rprintf(F," --port=PORT specify double-colon alternate port number\n");
780 rprintf(F," --sockopts=OPTIONS specify custom TCP options\n");
781 rprintf(F," --blocking-io use blocking I/O for the remote shell\n");
782 rprintf(F," --stats give some file-transfer stats\n");
783 rprintf(F," -8, --8-bit-output leave high-bit chars unescaped in output\n");
784 rprintf(F," -h, --human-readable output numbers in a human-readable format\n");
785 rprintf(F," --progress show progress during transfer\n");
786 rprintf(F," -P same as --partial --progress\n");
787 rprintf(F," -i, --itemize-changes output a change-summary for all updates\n");
788 rprintf(F," --out-format=FORMAT output updates using the specified FORMAT\n");
789 rprintf(F," --log-file=FILE log what we're doing to the specified FILE\n");
790 rprintf(F," --log-file-format=FMT log updates using the specified FMT\n");
791 rprintf(F," --password-file=FILE read daemon-access password from FILE\n");
792 rprintf(F," --list-only list the files instead of copying them\n");
793 rprintf(F," --bwlimit=RATE limit socket I/O bandwidth\n");
794 #ifdef HAVE_SETVBUF
795 rprintf(F," --outbuf=N|L|B set output buffering to None, Line, or Block\n");
796 #endif
797 rprintf(F," --write-batch=FILE write a batched update to FILE\n");
798 rprintf(F," --only-write-batch=FILE like --write-batch but w/o updating destination\n");
799 rprintf(F," --read-batch=FILE read a batched update from FILE\n");
800 rprintf(F," --protocol=NUM force an older protocol version to be used\n");
801 #ifdef ICONV_OPTION
802 rprintf(F," --iconv=CONVERT_SPEC request charset conversion of filenames\n");
803 #endif
804 rprintf(F," --checksum-seed=NUM set block/file checksum seed (advanced)\n");
805 rprintf(F," -4, --ipv4 prefer IPv4\n");
806 rprintf(F," -6, --ipv6 prefer IPv6\n");
807 rprintf(F," --version print version number\n");
808 rprintf(F,"(-h) --help show this help (-h is --help only if used alone)\n");
809
810 rprintf(F,"\n");
811 rprintf(F,"Use \"rsync --daemon --help\" to see the daemon-mode command-line options.\n");
812 rprintf(F,"Please see the rsync(1) and rsyncd.conf(5) man pages for full documentation.\n");
813 rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
814 }
815
816 enum {OPT_VERSION = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
817 OPT_FILTER, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST, OPT_HELP,
818 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW, OPT_MIN_SIZE, OPT_CHMOD,
819 OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_ONLY_WRITE_BATCH, OPT_MAX_SIZE,
820 OPT_NO_D, OPT_APPEND, OPT_NO_ICONV, OPT_INFO, OPT_DEBUG,
821 OPT_USERMAP, OPT_GROUPMAP, OPT_CHOWN, OPT_BWLIMIT,
822 OPT_SERVER, OPT_REFUSED_BASE = 9000};
823
824 static struct poptOption long_options[] = {
825 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
826 {"help", 0, POPT_ARG_NONE, 0, OPT_HELP, 0, 0 },
827 {"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0},
828 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
829 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
830 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
831 {"info", 0, POPT_ARG_STRING, 0, OPT_INFO, 0, 0 },
832 {"debug", 0, POPT_ARG_STRING, 0, OPT_DEBUG, 0, 0 },
833 {"msgs2stderr", 0, POPT_ARG_NONE, &msgs2stderr, 0, 0, 0 },
834 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
835 {"motd", 0, POPT_ARG_VAL, &output_motd, 1, 0, 0 },
836 {"no-motd", 0, POPT_ARG_VAL, &output_motd, 0, 0, 0 },
837 {"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
838 {"human-readable", 'h', POPT_ARG_NONE, 0, 'h', 0, 0},
839 {"no-human-readable",0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
840 {"no-h", 0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
841 {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
842 {"archive", 'a', POPT_ARG_NONE, 0, 'a', 0, 0 },
843 {"recursive", 'r', POPT_ARG_VAL, &recurse, 2, 0, 0 },
844 {"no-recursive", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
845 {"no-r", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
846 {"inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
847 {"no-inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
848 {"i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
849 {"no-i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
850 {"dirs", 'd', POPT_ARG_VAL, &xfer_dirs, 2, 0, 0 },
851 {"no-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
852 {"no-d", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
853 {"old-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
854 {"old-d", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
855 {"perms", 'p', POPT_ARG_VAL, &preserve_perms, 1, 0, 0 },
856 {"no-perms", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
857 {"no-p", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
858 {"executability", 'E', POPT_ARG_NONE, &preserve_executability, 0, 0, 0 },
859 {"acls", 'A', POPT_ARG_NONE, 0, 'A', 0, 0 },
860 {"no-acls", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
861 {"no-A", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
862 {"xattrs", 'X', POPT_ARG_NONE, 0, 'X', 0, 0 },
863 {"no-xattrs", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
864 {"no-X", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
865 {"times", 't', POPT_ARG_VAL, &preserve_times, 1, 0, 0 },
866 {"no-times", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 },
867 {"no-t", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 },
868 {"omit-dir-times", 'O', POPT_ARG_VAL, &omit_dir_times, 1, 0, 0 },
869 {"no-omit-dir-times",0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
870 {"no-O", 0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
871 {"omit-link-times", 'J', POPT_ARG_VAL, &omit_link_times, 1, 0, 0 },
872 {"no-omit-link-times",0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
873 {"no-J", 0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
874 {"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
875 {"super", 0, POPT_ARG_VAL, &am_root, 2, 0, 0 },
876 {"no-super", 0, POPT_ARG_VAL, &am_root, 0, 0, 0 },
877 {"fake-super", 0, POPT_ARG_VAL, &am_root, -1, 0, 0 },
878 {"owner", 'o', POPT_ARG_VAL, &preserve_uid, 1, 0, 0 },
879 {"no-owner", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
880 {"no-o", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
881 {"group", 'g', POPT_ARG_VAL, &preserve_gid, 1, 0, 0 },
882 {"no-group", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
883 {"no-g", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
884 {0, 'D', POPT_ARG_NONE, 0, 'D', 0, 0 },
885 {"no-D", 0, POPT_ARG_NONE, 0, OPT_NO_D, 0, 0 },
886 {"devices", 0, POPT_ARG_VAL, &preserve_devices, 1, 0, 0 },
887 {"no-devices", 0, POPT_ARG_VAL, &preserve_devices, 0, 0, 0 },
888 {"specials", 0, POPT_ARG_VAL, &preserve_specials, 1, 0, 0 },
889 {"no-specials", 0, POPT_ARG_VAL, &preserve_specials, 0, 0, 0 },
890 {"links", 'l', POPT_ARG_VAL, &preserve_links, 1, 0, 0 },
891 {"no-links", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
892 {"no-l", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
893 {"copy-links", 'L', POPT_ARG_NONE, &copy_links, 0, 0, 0 },
894 {"copy-unsafe-links",0, POPT_ARG_NONE, &copy_unsafe_links, 0, 0, 0 },
895 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
896 {"munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 1, 0, 0 },
897 {"no-munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 0, 0, 0 },
898 {"copy-dirlinks", 'k', POPT_ARG_NONE, &copy_dirlinks, 0, 0, 0 },
899 {"keep-dirlinks", 'K', POPT_ARG_NONE, &keep_dirlinks, 0, 0, 0 },
900 {"hard-links", 'H', POPT_ARG_NONE, 0, 'H', 0, 0 },
901 {"no-hard-links", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
902 {"no-H", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
903 {"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 },
904 {"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
905 {"no-R", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
906 {"implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
907 {"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
908 {"i-d", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
909 {"no-i-d", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
910 {"chmod", 0, POPT_ARG_STRING, 0, OPT_CHMOD, 0, 0 },
911 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 },
912 {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 },
913 {"one-file-system", 'x', POPT_ARG_NONE, 0, 'x', 0, 0 },
914 {"no-one-file-system",0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
915 {"no-x", 0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
916 {"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 },
917 {"existing", 0, POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
918 {"ignore-non-existing",0,POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
919 {"ignore-existing", 0, POPT_ARG_NONE, &ignore_existing, 0, 0, 0 },
920 {"max-size", 0, POPT_ARG_STRING, &max_size_arg, OPT_MAX_SIZE, 0, 0 },
921 {"min-size", 0, POPT_ARG_STRING, &min_size_arg, OPT_MIN_SIZE, 0, 0 },
922 {"sparse", 'S', POPT_ARG_VAL, &sparse_files, 1, 0, 0 },
923 {"no-sparse", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
924 {"no-S", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
925 {"preallocate", 0, POPT_ARG_NONE, &preallocate_files, 0, 0, 0},
926 {"inplace", 0, POPT_ARG_VAL, &inplace, 1, 0, 0 },
927 {"no-inplace", 0, POPT_ARG_VAL, &inplace, 0, 0, 0 },
928 {"append", 0, POPT_ARG_NONE, 0, OPT_APPEND, 0, 0 },
929 {"append-verify", 0, POPT_ARG_VAL, &append_mode, 2, 0, 0 },
930 {"no-append", 0, POPT_ARG_VAL, &append_mode, 0, 0, 0 },
931 {"del", 0, POPT_ARG_NONE, &delete_during, 0, 0, 0 },
932 {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
933 {"delete-before", 0, POPT_ARG_NONE, &delete_before, 0, 0, 0 },
934 {"delete-during", 0, POPT_ARG_VAL, &delete_during, 1, 0, 0 },
935 {"delete-delay", 0, POPT_ARG_VAL, &delete_during, 2, 0, 0 },
936 {"delete-after", 0, POPT_ARG_NONE, &delete_after, 0, 0, 0 },
937 {"delete-excluded", 0, POPT_ARG_NONE, &delete_excluded, 0, 0, 0 },
938 {"delete-missing-args",0,POPT_BIT_SET, &missing_args, 2, 0, 0 },
939 {"ignore-missing-args",0,POPT_BIT_SET, &missing_args, 1, 0, 0 },
940 {"remove-sent-files",0, POPT_ARG_VAL, &remove_source_files, 2, 0, 0 }, /* deprecated */
941 {"remove-source-files",0,POPT_ARG_VAL, &remove_source_files, 1, 0, 0 },
942 {"force", 0, POPT_ARG_VAL, &force_delete, 1, 0, 0 },
943 {"no-force", 0, POPT_ARG_VAL, &force_delete, 0, 0, 0 },
944 {"ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 1, 0, 0 },
945 {"no-ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 0, 0, 0 },
946 {"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
947 {0, 'F', POPT_ARG_NONE, 0, 'F', 0, 0 },
948 {"filter", 'f', POPT_ARG_STRING, 0, OPT_FILTER, 0, 0 },
949 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
950 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
951 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
952 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
953 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
954 {"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
955 {"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
956 {"no-W", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
957 {"checksum", 'c', POPT_ARG_VAL, &always_checksum, 1, 0, 0 },
958 {"no-checksum", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
959 {"no-c", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
960 {"block-size", 'B', POPT_ARG_LONG, &block_size, 0, 0, 0 },
961 {"compare-dest", 0, POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 },
962 {"copy-dest", 0, POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 },
963 {"link-dest", 0, POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 },
964 {"fuzzy", 'y', POPT_ARG_NONE, 0, 'y', 0, 0 },
965 {"no-fuzzy", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
966 {"no-y", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
967 {"compress", 'z', POPT_ARG_NONE, 0, 'z', 0, 0 },
968 {"no-compress", 0, POPT_ARG_VAL, &do_compression, 0, 0, 0 },
969 {"no-z", 0, POPT_ARG_VAL, &do_compression, 0, 0, 0 },
970 {"skip-compress", 0, POPT_ARG_STRING, &skip_compress, 0, 0, 0 },
971 {"compress-level", 0, POPT_ARG_INT, &def_compress_level, 'z', 0, 0 },
972 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
973 {"progress", 0, POPT_ARG_VAL, &do_progress, 1, 0, 0 },
974 {"no-progress", 0, POPT_ARG_VAL, &do_progress, 0, 0, 0 },
975 {"partial", 0, POPT_ARG_VAL, &keep_partial, 1, 0, 0 },
976 {"no-partial", 0, POPT_ARG_VAL, &keep_partial, 0, 0, 0 },
977 {"partial-dir", 0, POPT_ARG_STRING, &partial_dir, 0, 0, 0 },
978 {"delay-updates", 0, POPT_ARG_VAL, &delay_updates, 1, 0, 0 },
979 {"no-delay-updates", 0, POPT_ARG_VAL, &delay_updates, 0, 0, 0 },
980 {"prune-empty-dirs",'m', POPT_ARG_VAL, &prune_empty_dirs, 1, 0, 0 },
981 {"no-prune-empty-dirs",0,POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
982 {"no-m", 0, POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
983 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
984 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
985 {"out-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 },
986 {"log-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 }, /* DEPRECATED */
987 {"itemize-changes", 'i', POPT_ARG_NONE, 0, 'i', 0, 0 },
988 {"no-itemize-changes",0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
989 {"no-i", 0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
990 {"bwlimit", 0, POPT_ARG_STRING, &bwlimit_arg, OPT_BWLIMIT, 0, 0 },
991 {"no-bwlimit", 0, POPT_ARG_VAL, &bwlimit, 0, 0, 0 },
992 {"backup", 'b', POPT_ARG_VAL, &make_backups, 1, 0, 0 },
993 {"no-backup", 0, POPT_ARG_VAL, &make_backups, 0, 0, 0 },
994 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
995 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
996 {"list-only", 0, POPT_ARG_VAL, &list_only, 2, 0, 0 },
997 {"read-batch", 0, POPT_ARG_STRING, &batch_name, OPT_READ_BATCH, 0, 0 },
998 {"write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_WRITE_BATCH, 0, 0 },
999 {"only-write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_ONLY_WRITE_BATCH, 0, 0 },
1000 {"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
1001 {"from0", '0', POPT_ARG_VAL, &eol_nulls, 1, 0, 0},
1002 {"no-from0", 0, POPT_ARG_VAL, &eol_nulls, 0, 0, 0},
1003 {"protect-args", 's', POPT_ARG_VAL, &protect_args, 1, 0, 0},
1004 {"no-protect-args", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
1005 {"no-s", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
1006 {"numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 1, 0, 0 },
1007 {"no-numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 0, 0, 0 },
1008 {"usermap", 0, POPT_ARG_STRING, 0, OPT_USERMAP, 0, 0 },
1009 {"groupmap", 0, POPT_ARG_STRING, 0, OPT_GROUPMAP, 0, 0 },
1010 {"chown", 0, POPT_ARG_STRING, 0, OPT_CHOWN, 0, 0 },
1011 {"timeout", 0, POPT_ARG_INT, &io_timeout, 0, 0, 0 },
1012 {"no-timeout", 0, POPT_ARG_VAL, &io_timeout, 0, 0, 0 },
1013 {"contimeout", 0, POPT_ARG_INT, &connect_timeout, 0, 0, 0 },
1014 {"no-contimeout", 0, POPT_ARG_VAL, &connect_timeout, 0, 0, 0 },
1015 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
1016 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
1017 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
1018 #ifdef ICONV_OPTION
1019 {"iconv", 0, POPT_ARG_STRING, &iconv_opt, 0, 0, 0 },
1020 {"no-iconv", 0, POPT_ARG_NONE, 0, OPT_NO_ICONV, 0, 0 },
1021 #endif
1022 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
1023 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
1024 {"8-bit-output", '8', POPT_ARG_VAL, &allow_8bit_chars, 1, 0, 0 },
1025 {"no-8-bit-output", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
1026 {"no-8", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
1027 {"qsort", 0, POPT_ARG_NONE, &use_qsort, 0, 0, 0 },
1028 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
1029 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
1030 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
1031 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
1032 {"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
1033 {"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
1034 #ifdef HAVE_SETVBUF
1035 {"outbuf", 0, POPT_ARG_STRING, &outbuf_mode, 0, 0, 0 },
1036 #endif
1037 {"remote-option", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
1038 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
1039 {"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 },
1040 {"server", 0, POPT_ARG_NONE, 0, OPT_SERVER, 0, 0 },
1041 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
1042 /* All the following options switch us into daemon-mode option-parsing. */
1043 {"config", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
1044 {"daemon", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
1045 {"dparam", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
1046 {"detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
1047 {"no-detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
1048 {0,0,0,0, 0, 0, 0}
1049 };
1050
1051 static void daemon_usage(enum logcode F)
1052 {
1053 print_rsync_version(F);
1054
1055 rprintf(F,"\n");
1056 rprintf(F,"Usage: rsync --daemon [OPTION]...\n");
1057 rprintf(F," --address=ADDRESS bind to the specified address\n");
1058 rprintf(F," --bwlimit=RATE limit socket I/O bandwidth\n");
1059 rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
1060 rprintf(F," -M, --dparam=OVERRIDE override global daemon config parameter\n");
1061 rprintf(F," --no-detach do not detach from the parent\n");
1062 rprintf(F," --port=PORT listen on alternate port number\n");
1063 rprintf(F," --log-file=FILE override the \"log file\" setting\n");
1064 rprintf(F," --log-file-format=FMT override the \"log format\" setting\n");
1065 rprintf(F," --sockopts=OPTIONS specify custom TCP options\n");
1066 rprintf(F," -v, --verbose increase verbosity\n");
1067 rprintf(F," -4, --ipv4 prefer IPv4\n");
1068 rprintf(F," -6, --ipv6 prefer IPv6\n");
1069 rprintf(F," --help show this help screen\n");
1070
1071 rprintf(F,"\n");
1072 rprintf(F,"If you were not trying to invoke rsync as a daemon, avoid using any of the\n");
1073 rprintf(F,"daemon-specific rsync options. See also the rsyncd.conf(5) man page.\n");
1074 }
1075
1076 static struct poptOption long_daemon_options[] = {
1077 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
1078 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
1079 {"bwlimit", 0, POPT_ARG_INT, &daemon_bwlimit, 0, 0, 0 },
1080 {"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
1081 {"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
1082 {"dparam", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
1083 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
1084 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
1085 {"detach", 0, POPT_ARG_VAL, &no_detach, 0, 0, 0 },
1086 {"no-detach", 0, POPT_ARG_VAL, &no_detach, 1, 0, 0 },
1087 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
1088 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
1089 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
1090 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
1091 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
1092 {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
1093 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
1094 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
1095 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
1096 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
1097 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
1098 {0,0,0,0, 0, 0, 0}
1099 };
1100
1101
1102 static char err_buf[200];
1103
1104
1105 /**
1106 * Store the option error message, if any, so that we can log the
1107 * connection attempt (which requires parsing the options), and then
1108 * show the error later on.
1109 **/
1110 void option_error(void)
1111 {
1112 if (!err_buf[0]) {
1113 strlcpy(err_buf, "Error parsing options: option may "
1114 "be supported on client but not on server?\n",
1115 sizeof err_buf);
1116 }
1117
1118 rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
1119 msleep(20);
1120 }
1121
1122
1123 /**
1124 * Tweak the option table to disable all options that the rsyncd.conf
1125 * file has told us to refuse.
1126 **/
1127 static void set_refuse_options(char *bp)
1128 {
1129 struct poptOption *op;
1130 char *cp, shortname[2];
1131 int is_wild, found_match;
1132
1133 shortname[1] = '\0';
1134
1135 while (1) {
1136 while (*bp == ' ') bp++;
1137 if (!*bp)
1138 break;
1139 if ((cp = strchr(bp, ' ')) != NULL)
1140 *cp= '\0';
1141 is_wild = strpbrk(bp, "*?[") != NULL;
1142 found_match = 0;
1143 for (op = long_options; ; op++) {
1144 *shortname = op->shortName;
1145 if (!op->longName && !*shortname)
1146 break;
1147 if ((op->longName && wildmatch(bp, op->longName))
1148 || (*shortname && wildmatch(bp, shortname))) {
1149 if (op->argInfo == POPT_ARG_VAL)
1150 op->argInfo = POPT_ARG_NONE;
1151 op->val = (op - long_options) + OPT_REFUSED_BASE;
1152 found_match = 1;
1153 /* These flags are set to let us easily check
1154 * an implied option later in the code. */
1155 switch (*shortname) {
1156 case 'r': case 'd': case 'l': case 'p':
1157 case 't': case 'g': case 'o': case 'D':
1158 refused_archive_part = op->val;
1159 break;
1160 case 'z':
1161 refused_compress = op->val;
1162 break;
1163 case '\0':
1164 if (wildmatch("delete", op->longName))
1165 refused_delete = op->val;
1166 else if (wildmatch("delete-before", op->longName))
1167 refused_delete_before = op->val;
1168 else if (wildmatch("delete-during", op->longName))
1169 refused_delete_during = op->val;
1170 else if (wildmatch("partial", op->longName))
1171 refused_partial = op->val;
1172 else if (wildmatch("progress", op->longName))
1173 refused_progress = op->val;
1174 else if (wildmatch("inplace", op->longName))
1175 refused_inplace = op->val;
1176 else if (wildmatch("no-iconv", op->longName))
1177 refused_no_iconv = op->val;
1178 break;
1179 }
1180 if (!is_wild)
1181 break;
1182 }
1183 }
1184 if (!found_match) {
1185 rprintf(FLOG, "No match for refuse-options string \"%s\"\n",
1186 bp);
1187 }
1188 if (!cp)
1189 break;
1190 *cp = ' ';
1191 bp = cp + 1;
1192 }
1193 }
1194
1195
1196 static int count_args(const char **argv)
1197 {
1198 int i = 0;
1199
1200 if (argv) {
1201 while (argv[i] != NULL)
1202 i++;
1203 }
1204
1205 return i;
1206 }
1207
1208
1209 static OFF_T parse_size_arg(char **size_arg, char def_suf)
1210 {
1211 int reps, mult, make_compatible = 0;
1212 const char *arg;
1213 OFF_T size = 1;
1214
1215 for (arg = *size_arg; isDigit(arg); arg++) {}
1216 if (*arg == '.')
1217 for (arg++; isDigit(arg); arg++) {}
1218 switch (*arg && *arg != '+' && *arg != '-' ? *arg++ : def_suf) {
1219 case 'b': case 'B':
1220 reps = 0;
1221 break;
1222 case 'k': case 'K':
1223 reps = 1;
1224 break;
1225 case 'm': case 'M':
1226 reps = 2;
1227 break;
1228 case 'g': case 'G':
1229 reps = 3;
1230 break;
1231 default:
1232 return -1;
1233 }
1234 if (*arg == 'b' || *arg == 'B')
1235 mult = 1000, make_compatible = 1, arg++;
1236 else if (!*arg || *arg == '+' || *arg == '-')
1237 mult = 1024;
1238 else if (strncasecmp(arg, "ib", 2) == 0)
1239 mult = 1024, arg += 2;
1240 else
1241 return -1;
1242 while (reps--)
1243 size *= mult;
1244 size *= atof(*size_arg);
1245 if ((*arg == '+' || *arg == '-') && arg[1] == '1')
1246 size += atoi(arg), make_compatible = 1, arg += 2;
1247 if (*arg)
1248 return -1;
1249 if (size > 0 && make_compatible && def_suf == 'b') {
1250 /* We convert this manually because we may need %lld precision,
1251 * and that's not a portable sprintf() escape. */
1252 char buf[128], *s = buf + sizeof buf - 1;
1253 OFF_T num = size;
1254 *s = '\0';
1255 while (num) {
1256 *--s = (char)(num % 10) + '0';
1257 num /= 10;
1258 }
1259 if (!(*size_arg = strdup(s)))
1260 out_of_memory("parse_size_arg");
1261 }
1262 return size;
1263 }
1264
1265
1266 static void create_refuse_error(int which)
1267 {
1268 /* The "which" value is the index + OPT_REFUSED_BASE. */
1269 struct poptOption *op = &long_options[which - OPT_REFUSED_BASE];
1270 int n = snprintf(err_buf, sizeof err_buf,
1271 "The server is configured to refuse --%s\n",
1272 op->longName) - 1;
1273 if (op->shortName) {
1274 snprintf(err_buf + n, sizeof err_buf - n,
1275 " (-%c)\n", op->shortName);
1276 }
1277 }
1278
1279
1280 /**
1281 * Process command line arguments. Called on both local and remote.
1282 *
1283 * @retval 1 if all options are OK; with globals set to appropriate
1284 * values
1285 *
1286 * @retval 0 on error, with err_buf containing an explanation
1287 **/
1288 int parse_arguments(int *argc_p, const char ***argv_p)
1289 {
1290 static poptContext pc;
1291 char *ref = lp_refuse_options(module_id);
1292 const char *arg, **argv = *argv_p;
1293 int argc = *argc_p;
1294 int opt;
1295
1296 if (ref && *ref)
1297 set_refuse_options(ref);
1298 if (am_daemon) {
1299 set_refuse_options("log-file*");
1300 #ifdef ICONV_OPTION
1301 if (!*lp_charset(module_id))
1302 set_refuse_options("iconv");
1303 #endif
1304 }
1305
1306 #ifdef ICONV_OPTION
1307 if (!am_daemon && protect_args <= 0 && (arg = getenv("RSYNC_ICONV")) != NULL && *arg)
1308 iconv_opt = strdup(arg);
1309 #endif
1310
1311 /* TODO: Call poptReadDefaultConfig; handle errors. */
1312
1313 /* The context leaks in case of an error, but if there's a
1314 * problem we always exit anyhow. */
1315 if (pc)
1316 poptFreeContext(pc);
1317 pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
1318 if (!am_server)
1319 poptReadDefaultConfig(pc, 0);
1320
1321 while ((opt = poptGetNextOpt(pc)) != -1) {
1322 /* most options are handled automatically by popt;
1323 * only special cases are returned and listed here. */
1324
1325 switch (opt) {
1326 case OPT_VERSION:
1327 print_rsync_version(FINFO);
1328 exit_cleanup(0);
1329
1330 case OPT_SERVER:
1331 if (!am_server) {
1332 /* Disable popt aliases on the server side and
1333 * then start parsing the options again. */
1334 poptFreeContext(pc);
1335 pc = poptGetContext(RSYNC_NAME, argc, argv,
1336 long_options, 0);
1337 am_server = 1;
1338 }
1339 #ifdef ICONV_OPTION
1340 iconv_opt = NULL;
1341 #endif
1342 break;
1343
1344 case OPT_SENDER:
1345 if (!am_server) {
1346 usage(FERROR);
1347 exit_cleanup(RERR_SYNTAX);
1348 }
1349 am_sender = 1;
1350 break;
1351
1352 case OPT_DAEMON:
1353 if (am_daemon) {
1354 strlcpy(err_buf,
1355 "Attempt to hack rsync thwarted!\n",
1356 sizeof err_buf);
1357 return 0;
1358 }
1359 #ifdef ICONV_OPTION
1360 iconv_opt = NULL;
1361 #endif
1362 protect_args = 0;
1363 poptFreeContext(pc);
1364 pc = poptGetContext(RSYNC_NAME, argc, argv,
1365 long_daemon_options, 0);
1366 while ((opt = poptGetNextOpt(pc)) != -1) {
1367 char **cpp;
1368 switch (opt) {
1369 case 'h':
1370 daemon_usage(FINFO);
1371 exit_cleanup(0);
1372
1373 case 'M':
1374 arg = poptGetOptArg(pc);
1375 if (!strchr(arg, '=')) {
1376 rprintf(FERROR,
1377 "--dparam value is missing an '=': %s\n",
1378 arg);
1379 goto daemon_error;
1380 }
1381 cpp = EXPAND_ITEM_LIST(&dparam_list, char *, 4);
1382 *cpp = strdup(arg);
1383 break;
1384
1385 case 'v':
1386 verbose++;
1387 break;
1388
1389 default:
1390 rprintf(FERROR,
1391 "rsync: %s: %s (in daemon mode)\n",
1392 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1393 poptStrerror(opt));
1394 goto daemon_error;
1395 }
1396 }
1397
1398 if (dparam_list.count && !set_dparams(1))
1399 exit_cleanup(RERR_SYNTAX);
1400
1401 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
1402 snprintf(err_buf, sizeof err_buf,
1403 "the --temp-dir path is WAY too long.\n");
1404 return 0;
1405 }
1406
1407 if (!daemon_opt) {
1408 rprintf(FERROR, "Daemon option(s) used without --daemon.\n");
1409 daemon_error:
1410 rprintf(FERROR,
1411 "(Type \"rsync --daemon --help\" for assistance with daemon mode.)\n");
1412 exit_cleanup(RERR_SYNTAX);
1413 }
1414
1415 *argv_p = argv = poptGetArgs(pc);
1416 *argc_p = argc = count_args(argv);
1417 am_starting_up = 0;
1418 daemon_opt = 0;
1419 am_daemon = 1;
1420 return 1;
1421
1422 case OPT_MODIFY_WINDOW:
1423 /* The value has already been set by popt, but
1424 * we need to remember that we're using a
1425 * non-default setting. */
1426 modify_window_set = 1;
1427 break;
1428
1429 case OPT_FILTER:
1430 parse_filter_str(&filter_list, poptGetOptArg(pc),
1431 rule_template(0), 0);
1432 break;
1433
1434 case OPT_EXCLUDE:
1435 parse_filter_str(&filter_list, poptGetOptArg(pc),
1436 rule_template(0), XFLG_OLD_PREFIXES);
1437 break;
1438
1439 case OPT_INCLUDE:
1440 parse_filter_str(&filter_list, poptGetOptArg(pc),
1441 rule_template(FILTRULE_INCLUDE), XFLG_OLD_PREFIXES);
1442 break;
1443
1444 case OPT_EXCLUDE_FROM:
1445 case OPT_INCLUDE_FROM:
1446 arg = poptGetOptArg(pc);
1447 if (sanitize_paths)
1448 arg = sanitize_path(NULL, arg, NULL, 0, SP_DEFAULT);
1449 if (daemon_filter_list.head) {
1450 int rej;
1451 char *cp = strdup(arg);
1452 if (!cp)
1453 out_of_memory("parse_arguments");
1454 if (!*cp)
1455 rej = 1;
1456 else {
1457 char *dir = cp + (*cp == '/' ? module_dirlen : 0);
1458 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
1459 rej = check_filter(&daemon_filter_list, FLOG, dir, 0) < 0;
1460 }
1461 free(cp);
1462 if (rej)
1463 goto options_rejected;
1464 }
1465 parse_filter_file(&filter_list, arg,
1466 rule_template(opt == OPT_INCLUDE_FROM ? FILTRULE_INCLUDE : 0),
1467 XFLG_FATAL_ERRORS | XFLG_OLD_PREFIXES);
1468 break;
1469
1470 case 'a':
1471 if (refused_archive_part) {
1472 create_refuse_error(refused_archive_part);
1473 return 0;
1474 }
1475 if (!recurse) /* preserve recurse == 2 */
1476 recurse = 1;
1477 #ifdef SUPPORT_LINKS
1478 preserve_links = 1;
1479 #endif
1480 preserve_perms = 1;
1481 preserve_times = 1;
1482 preserve_gid = 1;
1483 preserve_uid = 1;
1484 preserve_devices = 1;
1485 preserve_specials = 1;
1486 break;
1487
1488 case 'D':
1489 preserve_devices = preserve_specials = 1;
1490 break;
1491
1492 case OPT_NO_D:
1493 preserve_devices = preserve_specials = 0;
1494 break;
1495
1496 case 'h':
1497 human_readable++;
1498 break;
1499
1500 case 'H':
1501 preserve_hard_links++;
1502 break;
1503
1504 case 'i':
1505 itemize_changes++;
1506 break;
1507
1508 case 'v':
1509 verbose++;
1510 break;
1511
1512 case 'y':
1513 fuzzy_basis++;
1514 break;
1515
1516 case 'q':
1517 quiet++;
1518 break;
1519
1520 case 'x':
1521 one_file_system++;
1522 break;
1523
1524 case 'F':
1525 switch (++F_option_cnt) {
1526 case 1:
1527 parse_filter_str(&filter_list,": /.rsync-filter",rule_template(0),0);
1528 break;
1529 case 2:
1530 parse_filter_str(&filter_list,"- .rsync-filter",rule_template(0),0);
1531 break;
1532 }
1533 break;
1534
1535 case 'P':
1536 if (refused_partial || refused_progress) {
1537 create_refuse_error(refused_partial
1538 ? refused_partial : refused_progress);
1539 return 0;
1540 }
1541 do_progress = 1;
1542 keep_partial = 1;
1543 break;
1544
1545 case 'z':
1546 if (def_compress_level < Z_DEFAULT_COMPRESSION
1547 || def_compress_level > Z_BEST_COMPRESSION) {
1548 snprintf(err_buf, sizeof err_buf,
1549 "--compress-level value is invalid: %d\n",
1550 def_compress_level);
1551 return 0;
1552 }
1553 do_compression = def_compress_level != Z_NO_COMPRESSION;
1554 if (do_compression && refused_compress) {
1555 create_refuse_error(refused_compress);
1556 return 0;
1557 }
1558 break;
1559
1560 case 'M':
1561 arg = poptGetOptArg(pc);
1562 if (*arg != '-') {
1563 snprintf(err_buf, sizeof err_buf,
1564 "Remote option must start with a dash: %s\n", arg);
1565 return 0;
1566 }
1567 if (remote_option_cnt+2 >= remote_option_alloc) {
1568 remote_option_alloc += 16;
1569 remote_options = realloc_array(remote_options,
1570 const char *, remote_option_alloc);
1571 if (!remote_options)
1572 out_of_memory("parse_arguments");
1573 if (!remote_option_cnt)
1574 remote_options[0] = "ARG0";
1575 }
1576 remote_options[++remote_option_cnt] = arg;
1577 remote_options[remote_option_cnt+1] = NULL;
1578 break;
1579
1580 case OPT_WRITE_BATCH:
1581 /* batch_name is already set */
1582 write_batch = 1;
1583 break;
1584
1585 case OPT_ONLY_WRITE_BATCH:
1586 /* batch_name is already set */
1587 write_batch = -1;
1588 break;
1589
1590 case OPT_READ_BATCH:
1591 /* batch_name is already set */
1592 read_batch = 1;
1593 break;
1594
1595 case OPT_NO_ICONV:
1596 #ifdef ICONV_OPTION
1597 iconv_opt = NULL;
1598 #endif
1599 break;
1600
1601 case OPT_MAX_SIZE:
1602 if ((max_size = parse_size_arg(&max_size_arg, 'b')) < 0) {
1603 snprintf(err_buf, sizeof err_buf,
1604 "--max-size value is invalid: %s\n",
1605 max_size_arg);
1606 return 0;
1607 }
1608 break;
1609
1610 case OPT_MIN_SIZE:
1611 if ((min_size = parse_size_arg(&min_size_arg, 'b')) < 0) {
1612 snprintf(err_buf, sizeof err_buf,
1613 "--min-size value is invalid: %s\n",
1614 min_size_arg);
1615 return 0;
1616 }
1617 break;
1618
1619 case OPT_BWLIMIT:
1620 {
1621 OFF_T limit = parse_size_arg(&bwlimit_arg, 'K');
1622 if (limit < 0) {
1623 snprintf(err_buf, sizeof err_buf,
1624 "--bwlimit value is invalid: %s\n", bwlimit_arg);
1625 return 0;
1626 }
1627 bwlimit = (limit + 512) / 1024;
1628 if (limit && !bwlimit) {
1629 snprintf(err_buf, sizeof err_buf,
1630 "--bwlimit value is too small: %s\n", bwlimit_arg);
1631 return 0;
1632 }
1633 }
1634 break;
1635
1636 case OPT_APPEND:
1637 if (am_server)
1638 append_mode++;
1639 else
1640 append_mode = 1;
1641 break;
1642
1643 case OPT_LINK_DEST:
1644 #ifdef SUPPORT_HARD_LINKS
1645 link_dest = 1;
1646 dest_option = "--link-dest";
1647 goto set_dest_dir;
1648 #else
1649 snprintf(err_buf, sizeof err_buf,
1650 "hard links are not supported on this %s\n",
1651 am_server ? "server" : "client");
1652 return 0;
1653 #endif
1654
1655 case OPT_COPY_DEST:
1656 copy_dest = 1;
1657 dest_option = "--copy-dest";
1658 goto set_dest_dir;
1659
1660 case OPT_COMPARE_DEST:
1661 compare_dest = 1;
1662 dest_option = "--compare-dest";
1663 set_dest_dir:
1664 if (basis_dir_cnt >= MAX_BASIS_DIRS) {
1665 snprintf(err_buf, sizeof err_buf,
1666 "ERROR: at most %d %s args may be specified\n",
1667 MAX_BASIS_DIRS, dest_option);
1668 return 0;
1669 }
1670 /* We defer sanitizing this arg until we know what
1671 * our destination directory is going to be. */
1672 basis_dir[basis_dir_cnt++] = (char *)poptGetOptArg(pc);
1673 break;
1674
1675 case OPT_CHMOD:
1676 arg = poptGetOptArg(pc);
1677 if (!parse_chmod(arg, &chmod_modes)) {
1678 snprintf(err_buf, sizeof err_buf,
1679 "Invalid argument passed to --chmod (%s)\n",
1680 arg);
1681 return 0;
1682 }
1683 break;
1684
1685 case OPT_INFO:
1686 arg = poptGetOptArg(pc);
1687 parse_output_words(info_words, info_levels, arg, USER_PRIORITY);
1688 break;
1689
1690 case OPT_DEBUG:
1691 arg = poptGetOptArg(pc);
1692 parse_output_words(debug_words, debug_levels, arg, USER_PRIORITY);
1693 break;
1694
1695 case OPT_USERMAP:
1696 if (usermap) {
1697 if (usermap_via_chown) {
1698 snprintf(err_buf, sizeof err_buf,
1699 "--usermap conflicts with prior --chown.\n");
1700 return 0;
1701 }
1702 snprintf(err_buf, sizeof err_buf,
1703 "You can only specify --usermap once.\n");
1704 return 0;
1705 }
1706 usermap = (char *)poptGetOptArg(pc);
1707 usermap_via_chown = False;
1708 break;
1709
1710 case OPT_GROUPMAP:
1711 if (groupmap) {
1712 if (groupmap_via_chown) {
1713 snprintf(err_buf, sizeof err_buf,
1714 "--groupmap conflicts with prior --chown.\n");
1715 return 0;
1716 }
1717 snprintf(err_buf, sizeof err_buf,
1718 "You can only specify --groupmap once.\n");
1719 return 0;
1720 }
1721 groupmap = (char *)poptGetOptArg(pc);
1722 groupmap_via_chown = False;
1723 break;
1724
1725 case OPT_CHOWN: {
1726 const char *chown = poptGetOptArg(pc);
1727 int len;
1728 if ((arg = strchr(chown, ':')) != NULL)
1729 len = arg++ - chown;
1730 else
1731 len = strlen(chown);
1732 if (len) {
1733 if (usermap) {
1734 if (!usermap_via_chown) {
1735 snprintf(err_buf, sizeof err_buf,
1736 "--chown conflicts with prior --usermap.\n");
1737 return 0;
1738 }
1739 snprintf(err_buf, sizeof err_buf,
1740 "You can only specify a user-affecting --chown once.\n");
1741 return 0;
1742 }
1743 if (asprintf(&usermap, "*:%.*s", len, chown) < 0)
1744 out_of_memory("parse_arguments");
1745 usermap_via_chown = True;
1746 }
1747 if (arg && *arg) {
1748 if (groupmap) {
1749 if (!groupmap_via_chown) {
1750 snprintf(err_buf, sizeof err_buf,
1751 "--chown conflicts with prior --groupmap.\n");
1752 return 0;
1753 }
1754 snprintf(err_buf, sizeof err_buf,
1755 "You can only specify a group-affecting --chown once.\n");
1756 return 0;
1757 }
1758 if (asprintf(&groupmap, "*:%s", arg) < 0)
1759 out_of_memory("parse_arguments");
1760 groupmap_via_chown = True;
1761 }
1762 break;
1763 }
1764
1765 case OPT_HELP:
1766 usage(FINFO);
1767 exit_cleanup(0);
1768
1769 case 'A':
1770 #ifdef SUPPORT_ACLS
1771 preserve_acls = 1;
1772 preserve_perms = 1;
1773 break;
1774 #else
1775 /* FIXME: this should probably be ignored with a
1776 * warning and then countermeasures taken to
1777 * restrict group and other access in the presence
1778 * of any more restrictive ACLs, but this is safe
1779 * for now */
1780 snprintf(err_buf,sizeof(err_buf),
1781 "ACLs are not supported on this %s\n",
1782 am_server ? "server" : "client");
1783 return 0;
1784 #endif
1785
1786 case 'X':
1787 #ifdef SUPPORT_XATTRS
1788 preserve_xattrs++;
1789 break;
1790 #else
1791 snprintf(err_buf,sizeof(err_buf),
1792 "extended attributes are not supported on this %s\n",
1793 am_server ? "server" : "client");
1794 return 0;
1795 #endif
1796
1797 default:
1798 /* A large opt value means that set_refuse_options()
1799 * turned this option off. */
1800 if (opt >= OPT_REFUSED_BASE) {
1801 create_refuse_error(opt);
1802 return 0;
1803 }
1804 snprintf(err_buf, sizeof err_buf, "%s%s: %s\n",
1805 am_server ? "on remote machine: " : "",
1806 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1807 poptStrerror(opt));
1808 return 0;
1809 }
1810 }
1811
1812 if (protect_args < 0) {
1813 if (am_server)
1814 protect_args = 0;
1815 else if ((arg = getenv("RSYNC_PROTECT_ARGS")) != NULL && *arg)
1816 protect_args = atoi(arg) ? 1 : 0;
1817 else {
1818 #ifdef RSYNC_USE_PROTECTED_ARGS
1819 protect_args = 1;
1820 #else
1821 protect_args = 0;
1822 #endif
1823 }
1824 }
1825
1826 if (human_readable > 1 && argc == 2 && !am_server) {
1827 /* Allow the old meaning of 'h' (--help) on its own. */
1828 usage(FINFO);
1829 exit_cleanup(0);
1830 }
1831
1832 #ifdef HAVE_SETVBUF
1833 if (outbuf_mode && !am_server) {
1834 int mode = *(uchar *)outbuf_mode;
1835 if (islower(mode))
1836 mode = toupper(mode);
1837 fflush(stdout); /* Just in case... */
1838 switch (mode) {
1839 case 'N': /* None */
1840 case 'U': /* Unbuffered */
1841 mode = _IONBF;
1842 break;
1843 case 'L': /* Line */
1844 mode = _IOLBF;
1845 break;
1846 case 'B': /* Block */
1847 case 'F': /* Full */
1848 mode = _IOFBF;
1849 break;
1850 default:
1851 snprintf(err_buf, sizeof err_buf,
1852 "Invalid --outbuf setting -- specify N, L, or B.\n");
1853 return 0;
1854 }
1855 setvbuf(stdout, (char *)NULL, mode, 0);
1856 }
1857
1858 if (msgs2stderr) {
1859 /* Make stderr line buffered for better sharing of the stream. */
1860 fflush(stderr); /* Just in case... */
1861 setvbuf(stderr, (char *)NULL, _IOLBF, 0);
1862 }
1863 #endif
1864
1865 set_output_verbosity(verbose, DEFAULT_PRIORITY);
1866
1867 if (do_stats) {
1868 parse_output_words(info_words, info_levels,
1869 verbose > 1 ? "stats3" : "stats2", DEFAULT_PRIORITY);
1870 }
1871
1872 #ifdef ICONV_OPTION
1873 if (iconv_opt && protect_args != 2) {
1874 if (!am_server && strcmp(iconv_opt, "-") == 0)
1875 iconv_opt = NULL;
1876 else
1877 need_unsorted_flist = 1;
1878 }
1879 if (refused_no_iconv && !iconv_opt) {
1880 create_refuse_error(refused_no_iconv);
1881 return 0;
1882 }
1883 #endif
1884
1885 if (fuzzy_basis > 1)
1886 fuzzy_basis = basis_dir_cnt + 1;
1887
1888 if (protect_args == 1 && am_server)
1889 return 1;
1890
1891 *argv_p = argv = poptGetArgs(pc);
1892 *argc_p = argc = count_args(argv);
1893
1894 #ifndef SUPPORT_LINKS
1895 if (preserve_links && !am_sender) {
1896 snprintf(err_buf, sizeof err_buf,
1897 "symlinks are not supported on this %s\n",
1898 am_server ? "server" : "client");
1899 return 0;
1900 }
1901 #endif
1902
1903 #ifndef SUPPORT_HARD_LINKS
1904 if (preserve_hard_links) {
1905 snprintf(err_buf, sizeof err_buf,
1906 "hard links are not supported on this %s\n",
1907 am_server ? "server" : "client");
1908 return 0;
1909 }
1910 #endif
1911
1912 #ifdef SUPPORT_XATTRS
1913 if (am_root < 0 && preserve_xattrs > 1) {
1914 snprintf(err_buf, sizeof err_buf,
1915 "--fake-super conflicts with -XX\n");
1916 return 0;
1917 }
1918 #else
1919 if (am_root < 0) {
1920 snprintf(err_buf, sizeof err_buf,
1921 "--fake-super requires an rsync with extended attributes enabled\n");
1922 return 0;
1923 }
1924 #endif
1925
1926 if (block_size > MAX_BLOCK_SIZE) {
1927 snprintf(err_buf, sizeof err_buf,
1928 "--block-size=%lu is too large (max: %u)\n", block_size, MAX_BLOCK_SIZE);
1929 return 0;
1930 }
1931
1932 if (write_batch && read_batch) {
1933 snprintf(err_buf, sizeof err_buf,
1934 "--write-batch and --read-batch can not be used together\n");
1935 return 0;
1936 }
1937 if (write_batch > 0 || read_batch) {
1938 if (am_server) {
1939 rprintf(FINFO,
1940 "ignoring --%s-batch option sent to server\n",
1941 write_batch ? "write" : "read");
1942 /* We don't actually exit_cleanup(), so that we can
1943 * still service older version clients that still send
1944 * batch args to server. */
1945 read_batch = write_batch = 0;
1946 batch_name = NULL;
1947 } else if (dry_run)
1948 write_batch = 0;
1949 } else if (write_batch < 0 && dry_run)
1950 write_batch = 0;
1951 if (read_batch && files_from) {
1952 snprintf(err_buf, sizeof err_buf,
1953 "--read-batch cannot be used with --files-from\n");
1954 return 0;
1955 }
1956 if (read_batch && remove_source_files) {
1957 snprintf(err_buf, sizeof err_buf,
1958 "--read-batch cannot be used with --remove-%s-files\n",
1959 remove_source_files == 1 ? "source" : "sent");
1960 return 0;
1961 }
1962 if (batch_name && strlen(batch_name) > MAX_BATCH_NAME_LEN) {
1963 snprintf(err_buf, sizeof err_buf,
1964 "the batch-file name must be %d characters or less.\n",
1965 MAX_BATCH_NAME_LEN);
1966 return 0;
1967 }
1968
1969 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
1970 snprintf(err_buf, sizeof err_buf,
1971 "the --temp-dir path is WAY too long.\n");
1972 return 0;
1973 }
1974
1975 if (max_delete < 0 && max_delete != INT_MIN) {
1976 /* Negative numbers are treated as "no deletions". */
1977 max_delete = 0;
1978 }
1979
1980 if (compare_dest + copy_dest + link_dest > 1) {
1981 snprintf(err_buf, sizeof err_buf,
1982 "You may not mix --compare-dest, --copy-dest, and --link-dest.\n");
1983 return 0;
1984 }
1985
1986 if (files_from) {
1987 if (recurse == 1) /* preserve recurse == 2 */
1988 recurse = 0;
1989 if (xfer_dirs < 0)
1990 xfer_dirs = 1;
1991 }
1992
1993 if (argc < 2 && !read_batch && !am_server)
1994 list_only |= 1;
1995
1996 if (xfer_dirs >= 4) {
1997 parse_filter_str(&filter_list, "- /*/*", rule_template(0), 0);
1998 recurse = xfer_dirs = 1;
1999 } else if (recurse)
2000 xfer_dirs = 1;
2001 else if (xfer_dirs < 0)
2002 xfer_dirs = list_only ? 1 : 0;
2003
2004 if (relative_paths < 0)
2005 relative_paths = files_from? 1 : 0;
2006 if (!relative_paths)
2007 implied_dirs = 0;
2008
2009 if (delete_before + !!delete_during + delete_after > 1) {
2010 snprintf(err_buf, sizeof err_buf,
2011 "You may not combine multiple --delete-WHEN options.\n");
2012 return 0;
2013 }
2014 if (delete_before || delete_during || delete_after)
2015 delete_mode = 1;
2016 else if (delete_mode || delete_excluded) {
2017 /* Only choose now between before & during if one is refused. */
2018 if (refused_delete_before) {
2019 if (!refused_delete_during)
2020 delete_during = 1;
2021 else {
2022 create_refuse_error(refused_delete_before);
2023 return 0;
2024 }
2025 } else if (refused_delete_during)
2026 delete_before = 1;
2027 delete_mode = 1;
2028 }
2029 if (!xfer_dirs && delete_mode) {
2030 snprintf(err_buf, sizeof err_buf,
2031 "--delete does not work without --recursive (-r) or --dirs (-d).\n");
2032 return 0;
2033 }
2034
2035 if (missing_args == 3) /* simplify if both options were specified */
2036 missing_args = 2;
2037 if (refused_delete && (delete_mode || missing_args == 2)) {
2038 create_refuse_error(refused_delete);
2039 return 0;
2040 }
2041
2042 if (remove_source_files) {
2043 /* We only want to infer this refusal of --remove-source-files
2044 * via the refusal of "delete", not any of the "delete-FOO"
2045 * options. */
2046 if (refused_delete && am_sender) {
2047 create_refuse_error(refused_delete);
2048 return 0;
2049 }
2050 need_messages_from_generator = 1;
2051 }
2052
2053 if (munge_symlinks && !am_daemon) {
2054 STRUCT_STAT st;
2055 char prefix[SYMLINK_PREFIX_LEN]; /* NOT +1 ! */
2056 strlcpy(prefix, SYMLINK_PREFIX, sizeof prefix); /* trim the trailing slash */
2057 if (do_stat(prefix, &st) == 0 && S_ISDIR(st.st_mode)) {
2058 rprintf(FERROR, "Symlink munging is unsafe when a %s directory exists.\n",
2059 prefix);
2060 exit_cleanup(RERR_UNSUPPORTED);
2061 }
2062 }
2063
2064 if (sanitize_paths) {
2065 int i;
2066 for (i = argc; i-- > 0; )
2067 argv[i] = sanitize_path(NULL, argv[i], "", 0, SP_KEEP_DOT_DIRS);
2068 if (tmpdir)
2069 tmpdir = sanitize_path(NULL, tmpdir, NULL, 0, SP_DEFAULT);
2070 if (backup_dir)
2071 backup_dir = sanitize_path(NULL, backup_dir, NULL, 0, SP_DEFAULT);
2072 }
2073 if (daemon_filter_list.head && !am_sender) {
2074 filter_rule_list *elp = &daemon_filter_list;
2075 if (tmpdir) {
2076 char *dir;
2077 if (!*tmpdir)
2078 goto options_rejected;
2079 dir = tmpdir + (*tmpdir == '/' ? module_dirlen : 0);
2080 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2081 if (check_filter(elp, FLOG, dir, 1) < 0)
2082 goto options_rejected;
2083 }
2084 if (backup_dir) {
2085 char *dir;
2086 if (!*backup_dir)
2087 goto options_rejected;
2088 dir = backup_dir + (*backup_dir == '/' ? module_dirlen : 0);
2089 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2090 if (check_filter(elp, FLOG, dir, 1) < 0)
2091 goto options_rejected;
2092 }
2093 }
2094
2095 if (!backup_suffix)
2096 backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
2097 backup_suffix_len = strlen(backup_suffix);
2098 if (strchr(backup_suffix, '/') != NULL) {
2099 snprintf(err_buf, sizeof err_buf,
2100 "--suffix cannot contain slashes: %s\n",
2101 backup_suffix);
2102 return 0;
2103 }
2104 if (backup_dir) {
2105 size_t len;
2106 while (*backup_dir == '.' && backup_dir[1] == '/')
2107 backup_dir += 2;
2108 if (*backup_dir == '.' && backup_dir[1] == '\0')
2109 backup_dir++;
2110 len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
2111 if (len > sizeof backup_dir_buf - 128) {
2112 snprintf(err_buf, sizeof err_buf,
2113 "the --backup-dir path is WAY too long.\n");
2114 return 0;
2115 }
2116 backup_dir_len = (int)len;
2117 if (!backup_dir_len) {
2118 backup_dir_len = -1;
2119 backup_dir = NULL;
2120 } else if (backup_dir_buf[backup_dir_len - 1] != '/') {
2121 backup_dir_buf[backup_dir_len++] = '/';
2122 backup_dir_buf[backup_dir_len] = '\0';
2123 }
2124 backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
2125 }
2126 if (backup_dir) {
2127 /* No need for a suffix or a protect rule. */
2128 } else if (!backup_suffix_len && (!am_server || !am_sender)) {
2129 snprintf(err_buf, sizeof err_buf,
2130 "--suffix cannot be empty %s\n", backup_dir_len < 0
2131 ? "when --backup-dir is the same as the dest dir"
2132 : "without a --backup-dir");
2133 return 0;
2134 } else if (make_backups && delete_mode && !delete_excluded && !am_server) {
2135 snprintf(backup_dir_buf, sizeof backup_dir_buf,
2136 "P *%s", backup_suffix);
2137 parse_filter_str(&filter_list, backup_dir_buf, rule_template(0), 0);
2138 }
2139
2140 if (preserve_times) {
2141 preserve_times = PRESERVE_FILE_TIMES;
2142 if (!omit_dir_times)
2143 preserve_times |= PRESERVE_DIR_TIMES;
2144 #ifdef CAN_SET_SYMLINK_TIMES
2145 if (!omit_link_times)
2146 preserve_times |= PRESERVE_LINK_TIMES;
2147 #endif
2148 }
2149
2150 if (make_backups && !backup_dir) {
2151 omit_dir_times = 0; /* Implied, so avoid -O to sender. */
2152 preserve_times &= ~PRESERVE_DIR_TIMES;
2153 }
2154
2155 if (stdout_format) {
2156 if (am_server && log_format_has(stdout_format, 'I'))
2157 stdout_format_has_i = 2;
2158 else if (log_format_has(stdout_format, 'i'))
2159 stdout_format_has_i = itemize_changes | 1;
2160 if (!log_format_has(stdout_format, 'b')
2161 && !log_format_has(stdout_format, 'c')
2162 && !log_format_has(stdout_format, 'C'))
2163 log_before_transfer = !am_server;
2164 } else if (itemize_changes) {
2165 stdout_format = "%i %n%L";
2166 stdout_format_has_i = itemize_changes;
2167 log_before_transfer = !am_server;
2168 }
2169
2170 if (do_progress && !am_server) {
2171 if (!log_before_transfer && INFO_EQ(NAME, 0))
2172 parse_output_words(info_words, info_levels, "name", DEFAULT_PRIORITY);
2173 parse_output_words(info_words, info_levels, "flist2,progress", DEFAULT_PRIORITY);
2174 }
2175
2176 if (dry_run)
2177 do_xfers = 0;
2178
2179 set_io_timeout(io_timeout);
2180
2181 if (INFO_GTE(NAME, 1) && !stdout_format) {
2182 stdout_format = "%n%L";
2183 log_before_transfer = !am_server;
2184 }
2185 if (stdout_format_has_i || log_format_has(stdout_format, 'o'))
2186 stdout_format_has_o_or_i = 1;
2187
2188 if (logfile_name && !am_daemon) {
2189 if (!logfile_format) {
2190 logfile_format = "%i %n%L";
2191 logfile_format_has_i = logfile_format_has_o_or_i = 1;
2192 } else {
2193 if (log_format_has(logfile_format, 'i'))
2194 logfile_format_has_i = 1;
2195 if (logfile_format_has_i || log_format_has(logfile_format, 'o'))
2196 logfile_format_has_o_or_i = 1;
2197 }
2198 log_init(0);
2199 } else if (!am_daemon)
2200 logfile_format = NULL;
2201
2202 if (daemon_bwlimit && (!bwlimit || bwlimit > daemon_bwlimit))
2203 bwlimit = daemon_bwlimit;
2204 if (bwlimit) {
2205 bwlimit_writemax = (size_t)bwlimit * 128;
2206 if (bwlimit_writemax < 512)
2207 bwlimit_writemax = 512;
2208 }
2209
2210 if (sparse_files && inplace) {
2211 /* Note: we don't check for this below, because --append is
2212 * OK with --sparse (as long as redos are handled right). */
2213 snprintf(err_buf, sizeof err_buf,
2214 "--sparse cannot be used with --inplace\n");
2215 return 0;
2216 }
2217
2218 if (append_mode) {
2219 if (whole_file > 0) {
2220 snprintf(err_buf, sizeof err_buf,
2221 "--append cannot be used with --whole-file\n");
2222 return 0;
2223 }
2224 if (refused_inplace) {
2225 create_refuse_error(refused_inplace);
2226 return 0;
2227 }
2228 inplace = 1;
2229 }
2230
2231 if (delay_updates && !partial_dir)
2232 partial_dir = tmp_partialdir;
2233
2234 if (inplace) {
2235 #ifdef HAVE_FTRUNCATE
2236 if (partial_dir) {
2237 snprintf(err_buf, sizeof err_buf,
2238 "--%s cannot be used with --%s\n",
2239 append_mode ? "append" : "inplace",
2240 delay_updates ? "delay-updates" : "partial-dir");
2241 return 0;
2242 }
2243 /* --inplace implies --partial for refusal purposes, but we
2244 * clear the keep_partial flag for internal logic purposes. */
2245 if (refused_partial) {
2246 create_refuse_error(refused_partial);
2247 return 0;
2248 }
2249 keep_partial = 0;
2250 #else
2251 snprintf(err_buf, sizeof err_buf,
2252 "--%s is not supported on this %s\n",
2253 append_mode ? "append" : "inplace",
2254 am_server ? "server" : "client");
2255 return 0;
2256 #endif
2257 } else {
2258 if (keep_partial && !partial_dir && !am_server) {
2259 if ((arg = getenv("RSYNC_PARTIAL_DIR")) != NULL && *arg)
2260 partial_dir = strdup(arg);
2261 }
2262 if (partial_dir) {
2263 if (*partial_dir)
2264 clean_fname(partial_dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2265 if (!*partial_dir || strcmp(partial_dir, ".") == 0)
2266 partial_dir = NULL;
2267 if (!partial_dir && refused_partial) {
2268 create_refuse_error(refused_partial);
2269 return 0;
2270 }
2271 keep_partial = 1;
2272 }
2273 }
2274
2275 if (files_from) {
2276 char *h, *p;
2277 int q;
2278 if (argc > 2 || (!am_daemon && !am_server && argc == 1)) {
2279 usage(FERROR);
2280 exit_cleanup(RERR_SYNTAX);
2281 }
2282 if (strcmp(files_from, "-") == 0) {
2283 filesfrom_fd = 0;
2284 if (am_server)
2285 filesfrom_host = ""; /* reading from socket */
2286 } else if ((p = check_for_hostspec(files_from, &h, &q)) != 0) {
2287 if (am_server) {
2288 snprintf(err_buf, sizeof err_buf,
2289 "The --files-from sent to the server cannot specify a host.\n");
2290 return 0;
2291 }
2292 files_from = p;
2293 filesfrom_host = h;
2294 if (strcmp(files_from, "-") == 0) {
2295 snprintf(err_buf, sizeof err_buf,
2296 "Invalid --files-from remote filename\n");
2297 return 0;
2298 }
2299 } else {
2300 if (sanitize_paths)
2301 files_from = sanitize_path(NULL, files_from, NULL, 0, SP_DEFAULT);
2302 if (daemon_filter_list.head) {
2303 char *dir;
2304 if (!*files_from)
2305 goto options_rejected;
2306 dir = files_from + (*files_from == '/' ? module_dirlen : 0);
2307 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2308 if (check_filter(&daemon_filter_list, FLOG, dir, 0) < 0)
2309 goto options_rejected;
2310 }
2311 filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
2312 if (filesfrom_fd < 0) {
2313 snprintf(err_buf, sizeof err_buf,
2314 "failed to open files-from file %s: %s\n",
2315 files_from, strerror(errno));
2316 return 0;
2317 }
2318 }
2319 }
2320
2321 am_starting_up = 0;
2322
2323 return 1;
2324
2325 options_rejected:
2326 snprintf(err_buf, sizeof err_buf,
2327 "Your options have been rejected by the server.\n");
2328 return 0;
2329 }
2330
2331
2332 /**
2333 * Construct a filtered list of options to pass through from the
2334 * client to the server.
2335 *
2336 * This involves setting options that will tell the server how to
2337 * behave, and also filtering out options that are processed only
2338 * locally.
2339 **/
2340 void server_options(char **args, int *argc_p)
2341 {
2342 static char argstr[64];
2343 int ac = *argc_p;
2344 uchar where;
2345 char *arg;
2346 int i, x;
2347
2348 /* This should always remain first on the server's command-line. */
2349 args[ac++] = "--server";
2350
2351 if (daemon_over_rsh > 0) {
2352 args[ac++] = "--daemon";
2353 *argc_p = ac;
2354 /* if we're passing --daemon, we're done */
2355 return;
2356 }
2357
2358 if (!am_sender)
2359 args[ac++] = "--sender";
2360
2361 x = 1;
2362 argstr[0] = '-';
2363
2364 if (protect_args)
2365 argstr[x++] = 's';
2366
2367 for (i = 0; i < verbose; i++)
2368 argstr[x++] = 'v';
2369
2370 /* the -q option is intentionally left out */
2371 if (make_backups)
2372 argstr[x++] = 'b';
2373 if (update_only)
2374 argstr[x++] = 'u';
2375 if (!do_xfers) /* Note: NOT "dry_run"! */
2376 argstr[x++] = 'n';
2377 if (preserve_links)
2378 argstr[x++] = 'l';
2379 if ((xfer_dirs >= 2 && xfer_dirs < 4)
2380 || (xfer_dirs && !recurse && (list_only || (delete_mode && am_sender))))
2381 argstr[x++] = 'd';
2382 if (am_sender) {
2383 if (keep_dirlinks)
2384 argstr[x++] = 'K';
2385 if (prune_empty_dirs)
2386 argstr[x++] = 'm';
2387 if (omit_dir_times)
2388 argstr[x++] = 'O';
2389 if (omit_link_times)
2390 argstr[x++] = 'J';
2391 if (fuzzy_basis) {
2392 argstr[x++] = 'y';
2393 if (fuzzy_basis > 1)
2394 argstr[x++] = 'y';
2395 }
2396 } else {
2397 if (copy_links)
2398 argstr[x++] = 'L';
2399 if (copy_dirlinks)
2400 argstr[x++] = 'k';
2401 }
2402
2403 if (whole_file > 0)
2404 argstr[x++] = 'W';
2405 /* We don't need to send --no-whole-file, because it's the
2406 * default for remote transfers, and in any case old versions
2407 * of rsync will not understand it. */
2408
2409 if (preserve_hard_links) {
2410 argstr[x++] = 'H';
2411 if (preserve_hard_links > 1)
2412 argstr[x++] = 'H';
2413 }
2414 if (preserve_uid)
2415 argstr[x++] = 'o';
2416 if (preserve_gid)
2417 argstr[x++] = 'g';
2418 if (preserve_devices) /* ignore preserve_specials here */
2419 argstr[x++] = 'D';
2420 if (preserve_times)
2421 argstr[x++] = 't';
2422 if (preserve_perms)
2423 argstr[x++] = 'p';
2424 else if (preserve_executability && am_sender)
2425 argstr[x++] = 'E';
2426 #ifdef SUPPORT_ACLS
2427 if (preserve_acls)
2428 argstr[x++] = 'A';
2429 #endif
2430 #ifdef SUPPORT_XATTRS
2431 if (preserve_xattrs) {
2432 argstr[x++] = 'X';
2433 if (preserve_xattrs > 1)
2434 argstr[x++] = 'X';
2435 }
2436 #endif
2437 if (recurse)
2438 argstr[x++] = 'r';
2439 if (always_checksum)
2440 argstr[x++] = 'c';
2441 if (cvs_exclude)
2442 argstr[x++] = 'C';
2443 if (ignore_times)
2444 argstr[x++] = 'I';
2445 if (relative_paths)
2446 argstr[x++] = 'R';
2447 if (one_file_system) {
2448 argstr[x++] = 'x';
2449 if (one_file_system > 1)
2450 argstr[x++] = 'x';
2451 }
2452 if (sparse_files)
2453 argstr[x++] = 'S';
2454 if (do_compression)
2455 argstr[x++] = 'z';
2456
2457 set_allow_inc_recurse();
2458
2459 /* Checking the pre-negotiated value allows --protocol=29 override. */
2460 if (protocol_version >= 30) {
2461 /* We make use of the -e option to let the server know about
2462 * any pre-release protocol version && some behavior flags. */
2463 argstr[x++] = 'e';
2464 #if SUBPROTOCOL_VERSION != 0
2465 if (protocol_version == PROTOCOL_VERSION) {
2466 x += snprintf(argstr+x, sizeof argstr - x,
2467 "%d.%d",
2468 PROTOCOL_VERSION, SUBPROTOCOL_VERSION);
2469 } else
2470 #endif
2471 argstr[x++] = '.';
2472 if (allow_inc_recurse)
2473 argstr[x++] = 'i';
2474 #ifdef CAN_SET_SYMLINK_TIMES
2475 argstr[x++] = 'L';
2476 #endif
2477 #ifdef ICONV_OPTION
2478 argstr[x++] = 's';
2479 #endif
2480 }
2481
2482 if (x >= (int)sizeof argstr) { /* Not possible... */
2483 rprintf(FERROR, "argstr overflow in server_options().\n");
2484 exit_cleanup(RERR_MALLOC);
2485 }
2486
2487 argstr[x] = '\0';
2488
2489 if (x > 1)
2490 args[ac++] = argstr;
2491
2492 #ifdef ICONV_OPTION
2493 if (iconv_opt) {
2494 char *set = strchr(iconv_opt, ',');
2495 if (set)
2496 set++;
2497 else
2498 set = iconv_opt;
2499 if (asprintf(&arg, "--iconv=%s", set) < 0)
2500 goto oom;
2501 args[ac++] = arg;
2502 }
2503 #endif
2504
2505 if (protect_args && !local_server) /* unprotected args stop here */
2506 args[ac++] = NULL;
2507
2508 if (list_only > 1)
2509 args[ac++] = "--list-only";
2510
2511 /* This makes sure that the remote rsync can handle deleting with -d
2512 * sans -r because the --no-r option was added at the same time. */
2513 if (xfer_dirs && !recurse && delete_mode && am_sender)
2514 args[ac++] = "--no-r";
2515
2516 if (do_compression && def_compress_level != Z_DEFAULT_COMPRESSION) {
2517 if (asprintf(&arg, "--compress-level=%d", def_compress_level) < 0)
2518 goto oom;
2519 args[ac++] = arg;
2520 }
2521
2522 if (preserve_devices) {
2523 /* Note: sending "--devices" would not be backward-compatible. */
2524 if (!preserve_specials)
2525 args[ac++] = "--no-specials"; /* -D is already set. */
2526 } else if (preserve_specials)
2527 args[ac++] = "--specials";
2528
2529 /* The server side doesn't use our log-format, but in certain
2530 * circumstances they need to know a little about the option. */
2531 if (stdout_format && am_sender) {
2532 /* Use --log-format, not --out-format, for compatibility. */
2533 if (stdout_format_has_i > 1)
2534 args[ac++] = "--log-format=%i%I";
2535 else if (stdout_format_has_i)
2536 args[ac++] = "--log-format=%i";
2537 else if (stdout_format_has_o_or_i)
2538 args[ac++] = "--log-format=%o";
2539 else if (!verbose)
2540 args[ac++] = "--log-format=X";
2541 }
2542
2543 if (block_size) {
2544 if (asprintf(&arg, "-B%lu", block_size) < 0)
2545 goto oom;
2546 args[ac++] = arg;
2547 }
2548
2549 if (io_timeout) {
2550 if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
2551 goto oom;
2552 args[ac++] = arg;
2553 }
2554
2555 if (bwlimit) {
2556 if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
2557 goto oom;
2558 args[ac++] = arg;
2559 }
2560
2561 if (backup_dir) {
2562 args[ac++] = "--backup-dir";
2563 args[ac++] = backup_dir;
2564 }
2565
2566 /* Only send --suffix if it specifies a non-default value. */
2567 if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
2568 /* We use the following syntax to avoid weirdness with '~'. */
2569 if (asprintf(&arg, "--suffix=%s", backup_suffix) < 0)
2570 goto oom;
2571 args[ac++] = arg;
2572 }
2573
2574 if (am_sender) {
2575 if (max_delete > 0) {
2576 if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
2577 goto oom;
2578 args[ac++] = arg;
2579 } else if (max_delete == 0)
2580 args[ac++] = "--max-delete=-1";
2581 if (min_size >= 0) {
2582 args[ac++] = "--min-size";
2583 args[ac++] = min_size_arg;
2584 }
2585 if (max_size >= 0) {
2586 args[ac++] = "--max-size";
2587 args[ac++] = max_size_arg;
2588 }
2589 if (delete_before)
2590 args[ac++] = "--delete-before";
2591 else if (delete_during == 2)
2592 args[ac++] = "--delete-delay";
2593 else if (delete_during)
2594 args[ac++] = "--delete-during";
2595 else if (delete_after)
2596 args[ac++] = "--delete-after";
2597 else if (delete_mode && !delete_excluded)
2598 args[ac++] = "--delete";
2599 if (delete_excluded)
2600 args[ac++] = "--delete-excluded";
2601 if (force_delete)
2602 args[ac++] = "--force";
2603 if (write_batch < 0)
2604 args[ac++] = "--only-write-batch=X";
2605 if (am_root > 1)
2606 args[ac++] = "--super";
2607 if (size_only)
2608 args[ac++] = "--size-only";
2609 if (do_stats)
2610 args[ac++] = "--stats";
2611 } else {
2612 if (skip_compress) {
2613 if (asprintf(&arg, "--skip-compress=%s", skip_compress) < 0)
2614 goto oom;
2615 args[ac++] = arg;
2616 }
2617 }
2618
2619 /* --delete-missing-args needs the cooperation of both sides, but
2620 * the sender can handle --ignore-missing-args by itself. */
2621 if (missing_args == 2)
2622 args[ac++] = "--delete-missing-args";
2623 else if (missing_args == 1 && !am_sender)
2624 args[ac++] = "--ignore-missing-args";
2625
2626 if (modify_window_set) {
2627 if (asprintf(&arg, "--modify-window=%d", modify_window) < 0)
2628 goto oom;
2629 args[ac++] = arg;
2630 }
2631
2632 if (checksum_seed) {
2633 if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
2634 goto oom;
2635 args[ac++] = arg;
2636 }
2637
2638 if (partial_dir && am_sender) {
2639 if (partial_dir != tmp_partialdir) {
2640 args[ac++] = "--partial-dir";
2641 args[ac++] = partial_dir;
2642 }
2643 if (delay_updates)
2644 args[ac++] = "--delay-updates";
2645 } else if (keep_partial && am_sender)
2646 args[ac++] = "--partial";
2647
2648 if (ignore_errors)
2649 args[ac++] = "--ignore-errors";
2650
2651 if (copy_unsafe_links)
2652 args[ac++] = "--copy-unsafe-links";
2653
2654 if (safe_symlinks)
2655 args[ac++] = "--safe-links";
2656
2657 if (numeric_ids)
2658 args[ac++] = "--numeric-ids";
2659
2660 if (use_qsort)
2661 args[ac++] = "--use-qsort";
2662
2663 if (am_sender) {
2664 if (usermap) {
2665 if (asprintf(&arg, "--usermap=%s", usermap) < 0)
2666 goto oom;
2667 args[ac++] = arg;
2668 }
2669
2670 if (groupmap) {
2671 if (asprintf(&arg, "--groupmap=%s", groupmap) < 0)
2672 goto oom;
2673 args[ac++] = arg;
2674 }
2675
2676 if (ignore_existing)
2677 args[ac++] = "--ignore-existing";
2678
2679 /* Backward compatibility: send --existing, not --ignore-non-existing. */
2680 if (ignore_non_existing)
2681 args[ac++] = "--existing";
2682
2683 if (tmpdir) {
2684 args[ac++] = "--temp-dir";
2685 args[ac++] = tmpdir;
2686 }
2687
2688 if (basis_dir[0]) {
2689 /* the server only needs this option if it is not the sender,
2690 * and it may be an older version that doesn't know this
2691 * option, so don't send it if client is the sender.
2692 */
2693 for (i = 0; i < basis_dir_cnt; i++) {
2694 args[ac++] = dest_option;
2695 args[ac++] = basis_dir[i];
2696 }
2697 }
2698 }
2699
2700 /* What flags do we need to send to the other side? */
2701 where = (am_server ? W_CLI : W_SRV) | (am_sender ? W_REC : W_SND);
2702 arg = make_output_option(info_words, info_levels, where);
2703 if (arg)
2704 args[ac++] = arg;
2705
2706 arg = make_output_option(debug_words, debug_levels, where);
2707 if (arg)
2708 args[ac++] = arg;
2709
2710 if (append_mode) {
2711 if (append_mode > 1)
2712 args[ac++] = "--append";
2713 args[ac++] = "--append";
2714 } else if (inplace)
2715 args[ac++] = "--inplace";
2716
2717 if (files_from && (!am_sender || filesfrom_host)) {
2718 if (filesfrom_host) {
2719 args[ac++] = "--files-from";
2720 args[ac++] = files_from;
2721 if (eol_nulls)
2722 args[ac++] = "--from0";
2723 } else {
2724 args[ac++] = "--files-from=-";
2725 args[ac++] = "--from0";
2726 }
2727 if (!relative_paths)
2728 args[ac++] = "--no-relative";
2729 }
2730 /* It's OK that this checks the upper-bound of the protocol_version. */
2731 if (relative_paths && !implied_dirs && (!am_sender || protocol_version >= 30))
2732 args[ac++] = "--no-implied-dirs";
2733
2734 if (remove_source_files == 1)
2735 args[ac++] = "--remove-source-files";
2736 else if (remove_source_files)
2737 args[ac++] = "--remove-sent-files";
2738
2739 if (preallocate_files && am_sender)
2740 args[ac++] = "--preallocate";
2741
2742 if (ac > MAX_SERVER_ARGS) { /* Not possible... */
2743 rprintf(FERROR, "argc overflow in server_options().\n");
2744 exit_cleanup(RERR_MALLOC);
2745 }
2746
2747 if (remote_option_cnt) {
2748 int j;
2749 if (ac + remote_option_cnt > MAX_SERVER_ARGS) {
2750 rprintf(FERROR, "too many remote options specified.\n");
2751 exit_cleanup(RERR_SYNTAX);
2752 }
2753 for (j = 1; j <= remote_option_cnt; j++)
2754 args[ac++] = (char*)remote_options[j];
2755 }
2756
2757 *argc_p = ac;
2758 return;
2759
2760 oom:
2761 out_of_memory("server_options");
2762 }
2763
2764 /* If str points to a valid hostspec, return allocated memory containing the
2765 * [USER@]HOST part of the string, and set the path_start_ptr to the part of
2766 * the string after the host part. Otherwise, return NULL. If port_ptr is
2767 * non-NULL, we must be parsing an rsync:// URL hostname, and we will set
2768 * *port_ptr if a port number is found. Note that IPv6 IPs will have their
2769 * (required for parsing) [ and ] chars elided from the returned string. */
2770 static char *parse_hostspec(char *str, char **path_start_ptr, int *port_ptr)
2771 {
2772 char *s, *host_start = str;
2773 int hostlen = 0, userlen = 0;
2774 char *ret;
2775
2776 for (s = str; ; s++) {
2777 if (!*s) {
2778 /* It is only OK if we run out of string with rsync:// */
2779 if (!port_ptr)
2780 return NULL;
2781 if (!hostlen)
2782 hostlen = s - host_start;
2783 break;
2784 }
2785 if (*s == ':' || *s == '/') {
2786 if (!hostlen)
2787 hostlen = s - host_start;
2788 if (*s++ == '/') {
2789 if (!port_ptr)
2790 return NULL;
2791 } else if (port_ptr) {
2792 *port_ptr = atoi(s);
2793 while (isDigit(s)) s++;
2794 if (*s && *s++ != '/')
2795 return NULL;
2796 }
2797 break;
2798 }
2799 if (*s == '@') {
2800 userlen = s - str + 1;
2801 host_start = s + 1;
2802 } else if (*s == '[') {
2803 if (s != host_start++)
2804 return NULL;
2805 while (*s && *s != ']' && *s != '/') s++; /*SHARED ITERATOR*/
2806 hostlen = s - host_start;
2807 if (*s != ']' || (s[1] && s[1] != '/' && s[1] != ':') || !hostlen)
2808 return NULL;
2809 }
2810 }
2811
2812 *path_start_ptr = s;
2813 ret = new_array(char, userlen + hostlen + 1);
2814 if (userlen)
2815 strlcpy(ret, str, userlen + 1);
2816 strlcpy(ret + userlen, host_start, hostlen + 1);
2817 return ret;
2818 }
2819
2820 /* Look for a HOST specfication of the form "HOST:PATH", "HOST::PATH", or
2821 * "rsync://HOST:PORT/PATH". If found, *host_ptr will be set to some allocated
2822 * memory with the HOST. If a daemon-accessing spec was specified, the value
2823 * of *port_ptr will contain a non-0 port number, otherwise it will be set to
2824 * 0. The return value is a pointer to the PATH. Note that the HOST spec can
2825 * be an IPv6 literal address enclosed in '[' and ']' (such as "[::1]" or
2826 * "[::ffff:127.0.0.1]") which is returned without the '[' and ']'. */
2827 char *check_for_hostspec(char *s, char **host_ptr, int *port_ptr)
2828 {
2829 char *path;
2830
2831 if (port_ptr && strncasecmp(URL_PREFIX, s, strlen(URL_PREFIX)) == 0) {
2832 *host_ptr = parse_hostspec(s + strlen(URL_PREFIX), &path, port_ptr);
2833 if (*host_ptr) {
2834 if (!*port_ptr)
2835 *port_ptr = RSYNC_PORT;
2836 return path;
2837 }
2838 }
2839
2840 *host_ptr = parse_hostspec(s, &path, NULL);
2841 if (!*host_ptr)
2842 return NULL;
2843
2844 if (*path == ':') {
2845 if (port_ptr && !*port_ptr)
2846 *port_ptr = RSYNC_PORT;
2847 return path + 1;
2848 }
2849 if (port_ptr)
2850 *port_ptr = 0;
2851
2852 return path;
2853 }
rsync: a fast, versatile, remote (and local) file-copying tool