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Make it possible to create a new patch file while on a patch branch.
[rsync/qnx.git] / options.c
blob3dab4a24716ad52a5c045c5e6d8ac4d3494a5a44
1 /*
2 * Command-line (and received via daemon-socket) option parsing.
3 *
4 * Copyright (C) 1998-2001 Andrew Tridgell <tridge@samba.org>
5 * Copyright (C) 2000, 2001, 2002 Martin Pool <mbp@samba.org>
6 * Copyright (C) 2002-2011 Wayne Davison
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, visit the http://fsf.org website.
20 */
21
22 #include "rsync.h"
23 #include "itypes.h"
24 #include <popt.h>
25 #include "zlib/zlib.h"
26
27 extern int module_id;
28 extern int local_server;
29 extern int sanitize_paths;
30 extern int daemon_over_rsh;
31 extern unsigned int module_dirlen;
32 extern 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 do_compression = 0;
77 int def_compress_level = Z_DEFAULT_COMPRESSION;
78 int am_root = 0; /* 0 = normal, 1 = root, 2 = --super, -1 = --fake-super */
79 int am_server = 0;
80 int am_sender = 0;
81 int am_starting_up = 1;
82 int relative_paths = -1;
83 int implied_dirs = 1;
84 int missing_args = 0; /* 0 = FERROR_XFER, 1 = ignore, 2 = delete */
85 int numeric_ids = 0;
86 int msgs2stderr = 0;
87 int allow_8bit_chars = 0;
88 int force_delete = 0;
89 int io_timeout = 0;
90 int prune_empty_dirs = 0;
91 int use_qsort = 0;
92 char *files_from = NULL;
93 int filesfrom_fd = -1;
94 char *filesfrom_host = NULL;
95 int eol_nulls = 0;
96 int protect_args = -1;
97 int human_readable = 1;
98 int recurse = 0;
99 int allow_inc_recurse = 1;
100 int xfer_dirs = -1;
101 int am_daemon = 0;
102 int connect_timeout = 0;
103 int keep_partial = 0;
104 int safe_symlinks = 0;
105 int copy_unsafe_links = 0;
106 int munge_symlinks = 0;
107 int size_only = 0;
108 int daemon_bwlimit = 0;
109 int bwlimit = 0;
110 int fuzzy_basis = 0;
111 size_t bwlimit_writemax = 0;
112 int ignore_existing = 0;
113 int ignore_non_existing = 0;
114 int need_messages_from_generator = 0;
115 int max_delete = INT_MIN;
116 OFF_T max_size = 0;
117 OFF_T min_size = 0;
118 int ignore_errors = 0;
119 int modify_window = 0;
120 int blocking_io = -1;
121 int checksum_seed = 0;
122 int inplace = 0;
123 int delay_updates = 0;
124 long block_size = 0; /* "long" because popt can't set an int32. */
125 char number_separator;
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,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"),
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 static char *bwlimit_arg, *max_size_arg, *min_size_arg;
306 static char tmp_partialdir[] = ".~tmp~";
307
308 /** Local address to bind. As a character string because it's
309 * interpreted by the IPv6 layer: should be a numeric IP4 or IP6
310 * address, or a hostname. **/
311 char *bind_address;
312
313 static void output_item_help(struct output_struct *words);
314
315 /* This constructs a string that represents all the options set for either
316 * the --info or --debug setting, skipping any implied options (by -v, etc.).
317 * This is used both when conveying the user's options to the server, and
318 * when the help output wants to tell the user what options are implied. */
319 static char *make_output_option(struct output_struct *words, short *levels, uchar where)
320 {
321 char *str = words == info_words ? "--info=" : "--debug=";
322 int j, counts[MAX_OUT_LEVEL+1], pos, skipped = 0, len = 0, max = 0, lev = 0;
323 int word_count = words == info_words ? COUNT_INFO : COUNT_DEBUG;
324 char *buf;
325
326 memset(counts, 0, sizeof counts);
327
328 for (j = 0; words[j].name; j++) {
329 if (words[j].flag != j) {
330 rprintf(FERROR, "rsync: internal error on %s%s: %d != %d\n",
331 words == info_words ? "INFO_" : "DEBUG_",
332 words[j].name, words[j].flag, j);
333 exit_cleanup(RERR_UNSUPPORTED);
334 }
335 if (!(words[j].where & where))
336 continue;
337 if (words[j].priority == DEFAULT_PRIORITY) {
338 /* Implied items don't need to be mentioned. */
339 skipped++;
340 continue;
341 }
342 len += len ? 1 : strlen(str);
343 len += strlen(words[j].name);
344 len += levels[j] == 1 ? 0 : 1;
345
346 if (words[j].priority == HELP_PRIORITY)
347 continue; /* no abbreviating for help */
348
349 assert(levels[j] <= MAX_OUT_LEVEL);
350 if (++counts[levels[j]] > max) {
351 /* Determine which level has the most items. */
352 lev = levels[j];
353 max = counts[lev];
354 }
355 }
356
357 /* Sanity check the COUNT_* define against the length of the table. */
358 if (j != word_count) {
359 rprintf(FERROR, "rsync: internal error: %s is wrong! (%d != %d)\n",
360 words == info_words ? "COUNT_INFO" : "COUNT_DEBUG",
361 j, word_count);
362 exit_cleanup(RERR_UNSUPPORTED);
363 }
364
365 if (!len)
366 return NULL;
367
368 len++;
369 if (!(buf = new_array(char, len)))
370 out_of_memory("make_output_option");
371 pos = 0;
372
373 if (skipped || max < 5)
374 lev = -1;
375 else {
376 if (lev == 0)
377 pos += snprintf(buf, len, "%sNONE", str);
378 else if (lev == 1)
379 pos += snprintf(buf, len, "%sALL", str);
380 else
381 pos += snprintf(buf, len, "%sALL%d", str, lev);
382 }
383
384 for (j = 0; words[j].name && pos < len; j++) {
385 if (words[j].priority == DEFAULT_PRIORITY || levels[j] == lev || !(words[j].where & where))
386 continue;
387 if (pos)
388 buf[pos++] = ',';
389 else
390 pos += strlcpy(buf+pos, str, len-pos);
391 if (pos < len)
392 pos += strlcpy(buf+pos, words[j].name, len-pos);
393 /* Level 1 is implied by the name alone. */
394 if (levels[j] != 1 && pos < len)
395 buf[pos++] = '0' + levels[j];
396 }
397
398 buf[pos] = '\0';
399
400 return buf;
401 }
402
403 static void parse_output_words(struct output_struct *words, short *levels,
404 const char *str, uchar priority)
405 {
406 const char *s;
407 int j, len, lev;
408
409 if (!str)
410 return;
411
412 while (*str) {
413 if ((s = strchr(str, ',')) != NULL)
414 len = s++ - str;
415 else
416 len = strlen(str);
417 while (len && isDigit(str+len-1))
418 len--;
419 lev = isDigit(str+len) ? atoi(str+len) : 1;
420 if (lev > MAX_OUT_LEVEL)
421 lev = MAX_OUT_LEVEL;
422 if (len == 4 && strncasecmp(str, "help", 4) == 0) {
423 output_item_help(words);
424 exit_cleanup(0);
425 }
426 if (len == 4 && strncasecmp(str, "none", 4) == 0)
427 len = lev = 0;
428 else if (len == 3 && strncasecmp(str, "all", 3) == 0)
429 len = 0;
430 for (j = 0; words[j].name; j++) {
431 if (!len
432 || (len == words[j].namelen && strncasecmp(str, words[j].name, len) == 0)) {
433 if (priority >= words[j].priority) {
434 words[j].priority = priority;
435 levels[j] = lev;
436 }
437 if (len)
438 break;
439 }
440 }
441 if (len && !words[j].name) {
442 rprintf(FERROR, "Unknown %s item: \"%.*s\"\n",
443 words[j].help, len, str);
444 exit_cleanup(RERR_SYNTAX);
445 }
446 if (!s)
447 break;
448 str = s;
449 }
450 }
451
452 /* Tell the user what all the info or debug flags mean. */
453 static void output_item_help(struct output_struct *words)
454 {
455 short *levels = words == info_words ? info_levels : debug_levels;
456 const char **verbosity = words == info_words ? info_verbosity : debug_verbosity;
457 char buf[128], *opt, *fmt = "%-10s %s\n";
458 int j;
459
460 reset_output_levels();
461
462 rprintf(FINFO, "Use OPT or OPT1 for level 1 output, OPT2 for level 2, etc.; OPT0 silences.\n");
463 rprintf(FINFO, "\n");
464 for (j = 0; words[j].name; j++)
465 rprintf(FINFO, fmt, words[j].name, words[j].help);
466 rprintf(FINFO, "\n");
467
468 snprintf(buf, sizeof buf, "Set all %s options (e.g. all%d)",
469 words[j].help, MAX_OUT_LEVEL);
470 rprintf(FINFO, fmt, "ALL", buf);
471
472 snprintf(buf, sizeof buf, "Silence all %s options (same as all0)",
473 words[j].help);
474 rprintf(FINFO, fmt, "NONE", buf);
475
476 rprintf(FINFO, fmt, "HELP", "Output this help message");
477 rprintf(FINFO, "\n");
478 rprintf(FINFO, "Options added for each increase in verbose level:\n");
479
480 for (j = 1; j <= MAX_VERBOSITY; j++) {
481 parse_output_words(words, levels, verbosity[j], HELP_PRIORITY);
482 opt = make_output_option(words, levels, W_CLI|W_SRV|W_SND|W_REC);
483 if (opt) {
484 rprintf(FINFO, "%d) %s\n", j, strchr(opt, '=')+1);
485 free(opt);
486 }
487 reset_output_levels();
488 }
489 }
490
491 /* The --verbose option now sets info+debug flags. */
492 static void set_output_verbosity(int level, uchar priority)
493 {
494 int j;
495
496 if (level > MAX_VERBOSITY)
497 level = MAX_VERBOSITY;
498
499 for (j = 1; j <= level; j++) {
500 parse_output_words(info_words, info_levels, info_verbosity[j], priority);
501 parse_output_words(debug_words, debug_levels, debug_verbosity[j], priority);
502 }
503 }
504
505 /* Limit the info+debug flag levels given a verbose-option level limit. */
506 void limit_output_verbosity(int level)
507 {
508 short info_limits[COUNT_INFO], debug_limits[COUNT_DEBUG];
509 int j;
510
511 if (level > MAX_VERBOSITY)
512 return;
513
514 memset(info_limits, 0, sizeof info_limits);
515 memset(debug_limits, 0, sizeof debug_limits);
516
517 /* Compute the level limits in the above arrays. */
518 for (j = 1; j <= level; j++) {
519 parse_output_words(info_words, info_limits, info_verbosity[j], LIMIT_PRIORITY);
520 parse_output_words(debug_words, debug_limits, debug_verbosity[j], LIMIT_PRIORITY);
521 }
522
523 for (j = 0; j < COUNT_INFO; j++) {
524 if (info_levels[j] > info_limits[j])
525 info_levels[j] = info_limits[j];
526 }
527
528 for (j = 0; j < COUNT_DEBUG; j++) {
529 if (debug_levels[j] > debug_limits[j])
530 debug_levels[j] = debug_limits[j];
531 }
532 }
533
534 void reset_output_levels(void)
535 {
536 int j;
537
538 memset(info_levels, 0, sizeof info_levels);
539 memset(debug_levels, 0, sizeof debug_levels);
540
541 for (j = 0; j < COUNT_INFO; j++)
542 info_words[j].priority = DEFAULT_PRIORITY;
543
544 for (j = 0; j < COUNT_DEBUG; j++)
545 debug_words[j].priority = DEFAULT_PRIORITY;
546 }
547
548 void negate_output_levels(void)
549 {
550 int j;
551
552 for (j = 0; j < COUNT_INFO; j++)
553 info_levels[j] *= -1;
554
555 for (j = 0; j < COUNT_DEBUG; j++)
556 debug_levels[j] *= -1;
557 }
558
559 static void print_rsync_version(enum logcode f)
560 {
561 char *subprotocol = "";
562 char const *got_socketpair = "no ";
563 char const *have_inplace = "no ";
564 char const *hardlinks = "no ";
565 char const *symtimes = "no ";
566 char const *acls = "no ";
567 char const *xattrs = "no ";
568 char const *links = "no ";
569 char const *iconv = "no ";
570 char const *ipv6 = "no ";
571 STRUCT_STAT *dumstat;
572
573 #if SUBPROTOCOL_VERSION != 0
574 if (asprintf(&subprotocol, ".PR%d", SUBPROTOCOL_VERSION) < 0)
575 out_of_memory("print_rsync_version");
576 #endif
577 #ifdef HAVE_SOCKETPAIR
578 got_socketpair = "";
579 #endif
580 #ifdef HAVE_FTRUNCATE
581 have_inplace = "";
582 #endif
583 #ifdef SUPPORT_HARD_LINKS
584 hardlinks = "";
585 #endif
586 #ifdef SUPPORT_ACLS
587 acls = "";
588 #endif
589 #ifdef SUPPORT_XATTRS
590 xattrs = "";
591 #endif
592 #ifdef SUPPORT_LINKS
593 links = "";
594 #endif
595 #ifdef INET6
596 ipv6 = "";
597 #endif
598 #ifdef ICONV_OPTION
599 iconv = "";
600 #endif
601 #ifdef CAN_SET_SYMLINK_TIMES
602 symtimes = "";
603 #endif
604
605 rprintf(f, "%s version %s protocol version %d%s\n",
606 RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION, subprotocol);
607 rprintf(f, "Copyright (C) 1996-2011 by Andrew Tridgell, Wayne Davison, and others.\n");
608 rprintf(f, "Web site: http://rsync.samba.org/\n");
609 rprintf(f, "Capabilities:\n");
610 rprintf(f, " %d-bit files, %d-bit inums, %d-bit timestamps, %d-bit long ints,\n",
611 (int)(sizeof (OFF_T) * 8),
612 (int)(sizeof dumstat->st_ino * 8), /* Don't check ino_t! */
613 (int)(sizeof (time_t) * 8),
614 (int)(sizeof (int64) * 8));
615 rprintf(f, " %ssocketpairs, %shardlinks, %ssymlinks, %sIPv6, batchfiles, %sinplace,\n",
616 got_socketpair, hardlinks, links, ipv6, have_inplace);
617 rprintf(f, " %sappend, %sACLs, %sxattrs, %siconv, %ssymtimes\n",
618 have_inplace, acls, xattrs, iconv, symtimes);
619
620 #ifdef MAINTAINER_MODE
621 rprintf(f, "Panic Action: \"%s\"\n", get_panic_action());
622 #endif
623
624 #if SIZEOF_INT64 < 8
625 rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
626 #endif
627 if (sizeof (int64) != SIZEOF_INT64) {
628 rprintf(f,
629 "WARNING: size mismatch in SIZEOF_INT64 define (%d != %d)\n",
630 (int) SIZEOF_INT64, (int) sizeof (int64));
631 }
632
633 rprintf(f,"\n");
634 rprintf(f,"rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n");
635 rprintf(f,"are welcome to redistribute it under certain conditions. See the GNU\n");
636 rprintf(f,"General Public Licence for details.\n");
637 }
638
639
640 void usage(enum logcode F)
641 {
642 print_rsync_version(F);
643
644 rprintf(F,"\n");
645 rprintf(F,"rsync is a file transfer program capable of efficient remote update\n");
646 rprintf(F,"via a fast differencing algorithm.\n");
647
648 rprintf(F,"\n");
649 rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... DEST\n");
650 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
651 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
652 rprintf(F," or rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST\n");
653 rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC [DEST]\n");
654 rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
655 rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
656 rprintf(F,"The ':' usages connect via remote shell, while '::' & 'rsync://' usages connect\n");
657 rprintf(F,"to an rsync daemon, and require SRC or DEST to start with a module name.\n");
658 rprintf(F,"\n");
659 rprintf(F,"Options\n");
660 rprintf(F," -v, --verbose increase verbosity\n");
661 rprintf(F," --info=FLAGS fine-grained informational verbosity\n");
662 rprintf(F," --debug=FLAGS fine-grained debug verbosity\n");
663 rprintf(F," -q, --quiet suppress non-error messages\n");
664 rprintf(F," --no-motd suppress daemon-mode MOTD (see manpage caveat)\n");
665 rprintf(F," -c, --checksum skip based on checksum, not mod-time & size\n");
666 rprintf(F," -a, --archive archive mode; equals -rlptgoD (no -H,-A,-X)\n");
667 rprintf(F," --no-OPTION turn off an implied OPTION (e.g. --no-D)\n");
668 rprintf(F," -r, --recursive recurse into directories\n");
669 rprintf(F," -R, --relative use relative path names\n");
670 rprintf(F," --no-implied-dirs don't send implied dirs with --relative\n");
671 rprintf(F," -b, --backup make backups (see --suffix & --backup-dir)\n");
672 rprintf(F," --backup-dir=DIR make backups into hierarchy based in DIR\n");
673 rprintf(F," --suffix=SUFFIX set backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX);
674 rprintf(F," -u, --update skip files that are newer on the receiver\n");
675 rprintf(F," --inplace update destination files in-place (SEE MAN PAGE)\n");
676 rprintf(F," --append append data onto shorter files\n");
677 rprintf(F," --append-verify like --append, but with old data in file checksum\n");
678 rprintf(F," -d, --dirs transfer directories without recursing\n");
679 rprintf(F," -l, --links copy symlinks as symlinks\n");
680 rprintf(F," -L, --copy-links transform symlink into referent file/dir\n");
681 rprintf(F," --copy-unsafe-links only \"unsafe\" symlinks are transformed\n");
682 rprintf(F," --safe-links ignore symlinks that point outside the source tree\n");
683 rprintf(F," --munge-links munge symlinks to make them safer (but unusable)\n");
684 rprintf(F," -k, --copy-dirlinks transform symlink to a dir into referent dir\n");
685 rprintf(F," -K, --keep-dirlinks treat symlinked dir on receiver as dir\n");
686 rprintf(F," -H, --hard-links preserve hard links\n");
687 rprintf(F," -p, --perms preserve permissions\n");
688 rprintf(F," -E, --executability preserve the file's executability\n");
689 rprintf(F," --chmod=CHMOD affect file and/or directory permissions\n");
690 #ifdef SUPPORT_ACLS
691 rprintf(F," -A, --acls preserve ACLs (implies --perms)\n");
692 #endif
693 #ifdef SUPPORT_XATTRS
694 rprintf(F," -X, --xattrs preserve extended attributes\n");
695 #endif
696 rprintf(F," -o, --owner preserve owner (super-user only)\n");
697 rprintf(F," -g, --group preserve group\n");
698 rprintf(F," --devices preserve device files (super-user only)\n");
699 rprintf(F," --specials preserve special files\n");
700 rprintf(F," -D same as --devices --specials\n");
701 rprintf(F," -t, --times preserve modification times\n");
702 rprintf(F," -O, --omit-dir-times omit directories from --times\n");
703 rprintf(F," -J, --omit-link-times omit symlinks from --times\n");
704 rprintf(F," --super receiver attempts super-user activities\n");
705 #ifdef SUPPORT_XATTRS
706 rprintf(F," --fake-super store/recover privileged attrs using xattrs\n");
707 #endif
708 rprintf(F," -S, --sparse handle sparse files efficiently\n");
709 rprintf(F," -n, --dry-run perform a trial run with no changes made\n");
710 rprintf(F," -W, --whole-file copy files whole (without delta-xfer algorithm)\n");
711 rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
712 rprintf(F," -B, --block-size=SIZE force a fixed checksum block-size\n");
713 rprintf(F," -e, --rsh=COMMAND specify the remote shell to use\n");
714 rprintf(F," --rsync-path=PROGRAM specify the rsync to run on the remote machine\n");
715 rprintf(F," --existing skip creating new files on receiver\n");
716 rprintf(F," --ignore-existing skip updating files that already exist on receiver\n");
717 rprintf(F," --remove-source-files sender removes synchronized files (non-dirs)\n");
718 rprintf(F," --del an alias for --delete-during\n");
719 rprintf(F," --delete delete extraneous files from destination dirs\n");
720 rprintf(F," --delete-before receiver deletes before transfer, not during\n");
721 rprintf(F," --delete-during receiver deletes during transfer (default)\n");
722 rprintf(F," --delete-delay find deletions during, delete after\n");
723 rprintf(F," --delete-after receiver deletes after transfer, not during\n");
724 rprintf(F," --delete-excluded also delete excluded files from destination dirs\n");
725 rprintf(F," --ignore-missing-args ignore missing source args without error\n");
726 rprintf(F," --delete-missing-args delete missing source args from destination\n");
727 rprintf(F," --ignore-errors delete even if there are I/O errors\n");
728 rprintf(F," --force force deletion of directories even if not empty\n");
729 rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
730 rprintf(F," --max-size=SIZE don't transfer any file larger than SIZE\n");
731 rprintf(F," --min-size=SIZE don't transfer any file smaller than SIZE\n");
732 rprintf(F," --partial keep partially transferred files\n");
733 rprintf(F," --partial-dir=DIR put a partially transferred file into DIR\n");
734 rprintf(F," --delay-updates put all updated files into place at transfer's end\n");
735 rprintf(F," -m, --prune-empty-dirs prune empty directory chains from the file-list\n");
736 rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
737 rprintf(F," --usermap=STRING custom username mapping\n");
738 rprintf(F," --groupmap=STRING custom groupname mapping\n");
739 rprintf(F," --chown=USER:GROUP simple username/groupname mapping\n");
740 rprintf(F," --timeout=SECONDS set I/O timeout in seconds\n");
741 rprintf(F," --contimeout=SECONDS set daemon connection timeout in seconds\n");
742 rprintf(F," -I, --ignore-times don't skip files that match in size and mod-time\n");
743 rprintf(F," -M, --remote-option=OPTION send OPTION to the remote side only\n");
744 rprintf(F," --size-only skip files that match in size\n");
745 rprintf(F," --modify-window=NUM compare mod-times with reduced accuracy\n");
746 rprintf(F," -T, --temp-dir=DIR create temporary files in directory DIR\n");
747 rprintf(F," -y, --fuzzy find similar file for basis if no dest file\n");
748 rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
749 rprintf(F," --copy-dest=DIR ... and include copies of unchanged files\n");
750 rprintf(F," --link-dest=DIR hardlink to files in DIR when unchanged\n");
751 rprintf(F," -z, --compress compress file data during the transfer\n");
752 rprintf(F," --compress-level=NUM explicitly set compression level\n");
753 rprintf(F," --skip-compress=LIST skip compressing files with a suffix in LIST\n");
754 rprintf(F," -C, --cvs-exclude auto-ignore files the same way CVS does\n");
755 rprintf(F," -f, --filter=RULE add a file-filtering RULE\n");
756 rprintf(F," -F same as --filter='dir-merge /.rsync-filter'\n");
757 rprintf(F," repeated: --filter='- .rsync-filter'\n");
758 rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
759 rprintf(F," --exclude-from=FILE read exclude patterns from FILE\n");
760 rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
761 rprintf(F," --include-from=FILE read include patterns from FILE\n");
762 rprintf(F," --files-from=FILE read list of source-file names from FILE\n");
763 rprintf(F," -0, --from0 all *-from/filter files are delimited by 0s\n");
764 rprintf(F," -s, --protect-args no space-splitting; only wildcard special-chars\n");
765 rprintf(F," --address=ADDRESS bind address for outgoing socket to daemon\n");
766 rprintf(F," --port=PORT specify double-colon alternate port number\n");
767 rprintf(F," --sockopts=OPTIONS specify custom TCP options\n");
768 rprintf(F," --blocking-io use blocking I/O for the remote shell\n");
769 rprintf(F," --stats give some file-transfer stats\n");
770 rprintf(F," -8, --8-bit-output leave high-bit chars unescaped in output\n");
771 rprintf(F," -h, --human-readable output numbers in a human-readable format\n");
772 rprintf(F," --progress show progress during transfer\n");
773 rprintf(F," -P same as --partial --progress\n");
774 rprintf(F," -i, --itemize-changes output a change-summary for all updates\n");
775 rprintf(F," --out-format=FORMAT output updates using the specified FORMAT\n");
776 rprintf(F," --log-file=FILE log what we're doing to the specified FILE\n");
777 rprintf(F," --log-file-format=FMT log updates using the specified FMT\n");
778 rprintf(F," --password-file=FILE read daemon-access password from FILE\n");
779 rprintf(F," --list-only list the files instead of copying them\n");
780 rprintf(F," --bwlimit=RATE limit socket I/O bandwidth\n");
781 rprintf(F," --write-batch=FILE write a batched update to FILE\n");
782 rprintf(F," --only-write-batch=FILE like --write-batch but w/o updating destination\n");
783 rprintf(F," --read-batch=FILE read a batched update from FILE\n");
784 rprintf(F," --protocol=NUM force an older protocol version to be used\n");
785 #ifdef ICONV_OPTION
786 rprintf(F," --iconv=CONVERT_SPEC request charset conversion of filenames\n");
787 #endif
788 rprintf(F," -4, --ipv4 prefer IPv4\n");
789 rprintf(F," -6, --ipv6 prefer IPv6\n");
790 rprintf(F," --version print version number\n");
791 rprintf(F,"(-h) --help show this help (-h works with no other options)\n");
792
793 rprintf(F,"\n");
794 rprintf(F,"Use \"rsync --daemon --help\" to see the daemon-mode command-line options.\n");
795 rprintf(F,"Please see the rsync(1) and rsyncd.conf(5) man pages for full documentation.\n");
796 rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
797 }
798
799 enum {OPT_VERSION = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
800 OPT_FILTER, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST, OPT_HELP,
801 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW, OPT_MIN_SIZE, OPT_CHMOD,
802 OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_ONLY_WRITE_BATCH, OPT_MAX_SIZE,
803 OPT_NO_D, OPT_APPEND, OPT_NO_ICONV, OPT_INFO, OPT_DEBUG,
804 OPT_USERMAP, OPT_GROUPMAP, OPT_CHOWN, OPT_BWLIMIT,
805 OPT_SERVER, OPT_REFUSED_BASE = 9000};
806
807 static struct poptOption long_options[] = {
808 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
809 {"help", 0, POPT_ARG_NONE, 0, OPT_HELP, 0, 0 },
810 {"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0},
811 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
812 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
813 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
814 {"info", 0, POPT_ARG_STRING, 0, OPT_INFO, 0, 0 },
815 {"debug", 0, POPT_ARG_STRING, 0, OPT_DEBUG, 0, 0 },
816 {"msgs2stderr", 0, POPT_ARG_NONE, &msgs2stderr, 0, 0, 0 },
817 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
818 {"motd", 0, POPT_ARG_VAL, &output_motd, 1, 0, 0 },
819 {"no-motd", 0, POPT_ARG_VAL, &output_motd, 0, 0, 0 },
820 {"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
821 {"human-readable", 'h', POPT_ARG_NONE, 0, 'h', 0, 0},
822 {"no-human-readable",0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
823 {"no-h", 0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
824 {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
825 {"archive", 'a', POPT_ARG_NONE, 0, 'a', 0, 0 },
826 {"recursive", 'r', POPT_ARG_VAL, &recurse, 2, 0, 0 },
827 {"no-recursive", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
828 {"no-r", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
829 {"inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
830 {"no-inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
831 {"i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
832 {"no-i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
833 {"dirs", 'd', POPT_ARG_VAL, &xfer_dirs, 2, 0, 0 },
834 {"no-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
835 {"no-d", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
836 {"old-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
837 {"old-d", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
838 {"perms", 'p', POPT_ARG_VAL, &preserve_perms, 1, 0, 0 },
839 {"no-perms", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
840 {"no-p", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
841 {"executability", 'E', POPT_ARG_NONE, &preserve_executability, 0, 0, 0 },
842 {"acls", 'A', POPT_ARG_NONE, 0, 'A', 0, 0 },
843 {"no-acls", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
844 {"no-A", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
845 {"xattrs", 'X', POPT_ARG_NONE, 0, 'X', 0, 0 },
846 {"no-xattrs", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
847 {"no-X", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
848 {"times", 't', POPT_ARG_VAL, &preserve_times, 1, 0, 0 },
849 {"no-times", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 },
850 {"no-t", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 },
851 {"omit-dir-times", 'O', POPT_ARG_VAL, &omit_dir_times, 1, 0, 0 },
852 {"no-omit-dir-times",0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
853 {"no-O", 0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
854 {"omit-link-times", 'J', POPT_ARG_VAL, &omit_link_times, 1, 0, 0 },
855 {"no-omit-link-times",0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
856 {"no-J", 0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
857 {"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
858 {"super", 0, POPT_ARG_VAL, &am_root, 2, 0, 0 },
859 {"no-super", 0, POPT_ARG_VAL, &am_root, 0, 0, 0 },
860 {"fake-super", 0, POPT_ARG_VAL, &am_root, -1, 0, 0 },
861 {"owner", 'o', POPT_ARG_VAL, &preserve_uid, 1, 0, 0 },
862 {"no-owner", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
863 {"no-o", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
864 {"group", 'g', POPT_ARG_VAL, &preserve_gid, 1, 0, 0 },
865 {"no-group", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
866 {"no-g", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
867 {0, 'D', POPT_ARG_NONE, 0, 'D', 0, 0 },
868 {"no-D", 0, POPT_ARG_NONE, 0, OPT_NO_D, 0, 0 },
869 {"devices", 0, POPT_ARG_VAL, &preserve_devices, 1, 0, 0 },
870 {"no-devices", 0, POPT_ARG_VAL, &preserve_devices, 0, 0, 0 },
871 {"specials", 0, POPT_ARG_VAL, &preserve_specials, 1, 0, 0 },
872 {"no-specials", 0, POPT_ARG_VAL, &preserve_specials, 0, 0, 0 },
873 {"links", 'l', POPT_ARG_VAL, &preserve_links, 1, 0, 0 },
874 {"no-links", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
875 {"no-l", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
876 {"copy-links", 'L', POPT_ARG_NONE, &copy_links, 0, 0, 0 },
877 {"copy-unsafe-links",0, POPT_ARG_NONE, &copy_unsafe_links, 0, 0, 0 },
878 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
879 {"munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 1, 0, 0 },
880 {"no-munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 0, 0, 0 },
881 {"copy-dirlinks", 'k', POPT_ARG_NONE, &copy_dirlinks, 0, 0, 0 },
882 {"keep-dirlinks", 'K', POPT_ARG_NONE, &keep_dirlinks, 0, 0, 0 },
883 {"hard-links", 'H', POPT_ARG_NONE, 0, 'H', 0, 0 },
884 {"no-hard-links", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
885 {"no-H", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
886 {"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 },
887 {"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
888 {"no-R", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
889 {"implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
890 {"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
891 {"i-d", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
892 {"no-i-d", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
893 {"chmod", 0, POPT_ARG_STRING, 0, OPT_CHMOD, 0, 0 },
894 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 },
895 {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 },
896 {"one-file-system", 'x', POPT_ARG_NONE, 0, 'x', 0, 0 },
897 {"no-one-file-system",0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
898 {"no-x", 0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
899 {"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 },
900 {"existing", 0, POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
901 {"ignore-non-existing",0,POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
902 {"ignore-existing", 0, POPT_ARG_NONE, &ignore_existing, 0, 0, 0 },
903 {"max-size", 0, POPT_ARG_STRING, &max_size_arg, OPT_MAX_SIZE, 0, 0 },
904 {"min-size", 0, POPT_ARG_STRING, &min_size_arg, OPT_MIN_SIZE, 0, 0 },
905 {"sparse", 'S', POPT_ARG_VAL, &sparse_files, 1, 0, 0 },
906 {"no-sparse", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
907 {"no-S", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
908 {"inplace", 0, POPT_ARG_VAL, &inplace, 1, 0, 0 },
909 {"no-inplace", 0, POPT_ARG_VAL, &inplace, 0, 0, 0 },
910 {"append", 0, POPT_ARG_NONE, 0, OPT_APPEND, 0, 0 },
911 {"append-verify", 0, POPT_ARG_VAL, &append_mode, 2, 0, 0 },
912 {"no-append", 0, POPT_ARG_VAL, &append_mode, 0, 0, 0 },
913 {"del", 0, POPT_ARG_NONE, &delete_during, 0, 0, 0 },
914 {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
915 {"delete-before", 0, POPT_ARG_NONE, &delete_before, 0, 0, 0 },
916 {"delete-during", 0, POPT_ARG_VAL, &delete_during, 1, 0, 0 },
917 {"delete-delay", 0, POPT_ARG_VAL, &delete_during, 2, 0, 0 },
918 {"delete-after", 0, POPT_ARG_NONE, &delete_after, 0, 0, 0 },
919 {"delete-excluded", 0, POPT_ARG_NONE, &delete_excluded, 0, 0, 0 },
920 {"delete-missing-args",0,POPT_BIT_SET, &missing_args, 2, 0, 0 },
921 {"ignore-missing-args",0,POPT_BIT_SET, &missing_args, 1, 0, 0 },
922 {"remove-sent-files",0, POPT_ARG_VAL, &remove_source_files, 2, 0, 0 }, /* deprecated */
923 {"remove-source-files",0,POPT_ARG_VAL, &remove_source_files, 1, 0, 0 },
924 {"force", 0, POPT_ARG_VAL, &force_delete, 1, 0, 0 },
925 {"no-force", 0, POPT_ARG_VAL, &force_delete, 0, 0, 0 },
926 {"ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 1, 0, 0 },
927 {"no-ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 0, 0, 0 },
928 {"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
929 {0, 'F', POPT_ARG_NONE, 0, 'F', 0, 0 },
930 {"filter", 'f', POPT_ARG_STRING, 0, OPT_FILTER, 0, 0 },
931 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
932 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
933 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
934 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
935 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
936 {"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
937 {"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
938 {"no-W", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
939 {"checksum", 'c', POPT_ARG_VAL, &always_checksum, 1, 0, 0 },
940 {"no-checksum", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
941 {"no-c", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
942 {"block-size", 'B', POPT_ARG_LONG, &block_size, 0, 0, 0 },
943 {"compare-dest", 0, POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 },
944 {"copy-dest", 0, POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 },
945 {"link-dest", 0, POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 },
946 {"fuzzy", 'y', POPT_ARG_VAL, &fuzzy_basis, 1, 0, 0 },
947 {"no-fuzzy", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
948 {"no-y", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
949 {"compress", 'z', POPT_ARG_NONE, 0, 'z', 0, 0 },
950 {"no-compress", 0, POPT_ARG_VAL, &do_compression, 0, 0, 0 },
951 {"no-z", 0, POPT_ARG_VAL, &do_compression, 0, 0, 0 },
952 {"skip-compress", 0, POPT_ARG_STRING, &skip_compress, 0, 0, 0 },
953 {"compress-level", 0, POPT_ARG_INT, &def_compress_level, 'z', 0, 0 },
954 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
955 {"progress", 0, POPT_ARG_VAL, &do_progress, 1, 0, 0 },
956 {"no-progress", 0, POPT_ARG_VAL, &do_progress, 0, 0, 0 },
957 {"partial", 0, POPT_ARG_VAL, &keep_partial, 1, 0, 0 },
958 {"no-partial", 0, POPT_ARG_VAL, &keep_partial, 0, 0, 0 },
959 {"partial-dir", 0, POPT_ARG_STRING, &partial_dir, 0, 0, 0 },
960 {"delay-updates", 0, POPT_ARG_VAL, &delay_updates, 1, 0, 0 },
961 {"no-delay-updates", 0, POPT_ARG_VAL, &delay_updates, 0, 0, 0 },
962 {"prune-empty-dirs",'m', POPT_ARG_VAL, &prune_empty_dirs, 1, 0, 0 },
963 {"no-prune-empty-dirs",0,POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
964 {"no-m", 0, POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
965 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
966 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
967 {"out-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 },
968 {"log-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 }, /* DEPRECATED */
969 {"itemize-changes", 'i', POPT_ARG_NONE, 0, 'i', 0, 0 },
970 {"no-itemize-changes",0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
971 {"no-i", 0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
972 {"bwlimit", 0, POPT_ARG_STRING, &bwlimit_arg, OPT_BWLIMIT, 0, 0 },
973 {"no-bwlimit", 0, POPT_ARG_VAL, &bwlimit, 0, 0, 0 },
974 {"backup", 'b', POPT_ARG_VAL, &make_backups, 1, 0, 0 },
975 {"no-backup", 0, POPT_ARG_VAL, &make_backups, 0, 0, 0 },
976 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
977 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
978 {"list-only", 0, POPT_ARG_VAL, &list_only, 2, 0, 0 },
979 {"read-batch", 0, POPT_ARG_STRING, &batch_name, OPT_READ_BATCH, 0, 0 },
980 {"write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_WRITE_BATCH, 0, 0 },
981 {"only-write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_ONLY_WRITE_BATCH, 0, 0 },
982 {"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
983 {"from0", '0', POPT_ARG_VAL, &eol_nulls, 1, 0, 0},
984 {"no-from0", 0, POPT_ARG_VAL, &eol_nulls, 0, 0, 0},
985 {"protect-args", 's', POPT_ARG_VAL, &protect_args, 1, 0, 0},
986 {"no-protect-args", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
987 {"no-s", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
988 {"numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 1, 0, 0 },
989 {"no-numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 0, 0, 0 },
990 {"usermap", 0, POPT_ARG_STRING, 0, OPT_USERMAP, 0, 0 },
991 {"groupmap", 0, POPT_ARG_STRING, 0, OPT_GROUPMAP, 0, 0 },
992 {"chown", 0, POPT_ARG_STRING, 0, OPT_CHOWN, 0, 0 },
993 {"timeout", 0, POPT_ARG_INT, &io_timeout, 0, 0, 0 },
994 {"no-timeout", 0, POPT_ARG_VAL, &io_timeout, 0, 0, 0 },
995 {"contimeout", 0, POPT_ARG_INT, &connect_timeout, 0, 0, 0 },
996 {"no-contimeout", 0, POPT_ARG_VAL, &connect_timeout, 0, 0, 0 },
997 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
998 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
999 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
1000 #ifdef ICONV_OPTION
1001 {"iconv", 0, POPT_ARG_STRING, &iconv_opt, 0, 0, 0 },
1002 {"no-iconv", 0, POPT_ARG_NONE, 0, OPT_NO_ICONV, 0, 0 },
1003 #endif
1004 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
1005 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
1006 {"8-bit-output", '8', POPT_ARG_VAL, &allow_8bit_chars, 1, 0, 0 },
1007 {"no-8-bit-output", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
1008 {"no-8", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
1009 {"qsort", 0, POPT_ARG_NONE, &use_qsort, 0, 0, 0 },
1010 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
1011 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
1012 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
1013 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
1014 {"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
1015 {"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
1016 {"remote-option", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
1017 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
1018 {"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 },
1019 {"server", 0, POPT_ARG_NONE, 0, OPT_SERVER, 0, 0 },
1020 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
1021 /* All the following options switch us into daemon-mode option-parsing. */
1022 {"config", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
1023 {"daemon", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
1024 {"dparam", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
1025 {"detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
1026 {"no-detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
1027 {0,0,0,0, 0, 0, 0}
1028 };
1029
1030 static void daemon_usage(enum logcode F)
1031 {
1032 print_rsync_version(F);
1033
1034 rprintf(F,"\n");
1035 rprintf(F,"Usage: rsync --daemon [OPTION]...\n");
1036 rprintf(F," --address=ADDRESS bind to the specified address\n");
1037 rprintf(F," --bwlimit=RATE limit socket I/O bandwidth\n");
1038 rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
1039 rprintf(F," -M, --dparam=OVERRIDE override global daemon config parameter\n");
1040 rprintf(F," --no-detach do not detach from the parent\n");
1041 rprintf(F," --port=PORT listen on alternate port number\n");
1042 rprintf(F," --log-file=FILE override the \"log file\" setting\n");
1043 rprintf(F," --log-file-format=FMT override the \"log format\" setting\n");
1044 rprintf(F," --sockopts=OPTIONS specify custom TCP options\n");
1045 rprintf(F," -v, --verbose increase verbosity\n");
1046 rprintf(F," -4, --ipv4 prefer IPv4\n");
1047 rprintf(F," -6, --ipv6 prefer IPv6\n");
1048 rprintf(F," --help show this help screen\n");
1049
1050 rprintf(F,"\n");
1051 rprintf(F,"If you were not trying to invoke rsync as a daemon, avoid using any of the\n");
1052 rprintf(F,"daemon-specific rsync options. See also the rsyncd.conf(5) man page.\n");
1053 }
1054
1055 static struct poptOption long_daemon_options[] = {
1056 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
1057 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
1058 {"bwlimit", 0, POPT_ARG_INT, &daemon_bwlimit, 0, 0, 0 },
1059 {"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
1060 {"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
1061 {"dparam", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
1062 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
1063 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
1064 {"detach", 0, POPT_ARG_VAL, &no_detach, 0, 0, 0 },
1065 {"no-detach", 0, POPT_ARG_VAL, &no_detach, 1, 0, 0 },
1066 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
1067 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
1068 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
1069 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
1070 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
1071 {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
1072 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
1073 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
1074 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
1075 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
1076 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
1077 {0,0,0,0, 0, 0, 0}
1078 };
1079
1080
1081 static char err_buf[200];
1082
1083
1084 /**
1085 * Store the option error message, if any, so that we can log the
1086 * connection attempt (which requires parsing the options), and then
1087 * show the error later on.
1088 **/
1089 void option_error(void)
1090 {
1091 if (!err_buf[0]) {
1092 strlcpy(err_buf, "Error parsing options: option may "
1093 "be supported on client but not on server?\n",
1094 sizeof err_buf);
1095 }
1096
1097 rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
1098 msleep(20);
1099 }
1100
1101
1102 /**
1103 * Tweak the option table to disable all options that the rsyncd.conf
1104 * file has told us to refuse.
1105 **/
1106 static void set_refuse_options(char *bp)
1107 {
1108 struct poptOption *op;
1109 char *cp, shortname[2];
1110 int is_wild, found_match;
1111
1112 shortname[1] = '\0';
1113
1114 while (1) {
1115 while (*bp == ' ') bp++;
1116 if (!*bp)
1117 break;
1118 if ((cp = strchr(bp, ' ')) != NULL)
1119 *cp= '\0';
1120 is_wild = strpbrk(bp, "*?[") != NULL;
1121 found_match = 0;
1122 for (op = long_options; ; op++) {
1123 *shortname = op->shortName;
1124 if (!op->longName && !*shortname)
1125 break;
1126 if ((op->longName && wildmatch(bp, op->longName))
1127 || (*shortname && wildmatch(bp, shortname))) {
1128 if (op->argInfo == POPT_ARG_VAL)
1129 op->argInfo = POPT_ARG_NONE;
1130 op->val = (op - long_options) + OPT_REFUSED_BASE;
1131 found_match = 1;
1132 /* These flags are set to let us easily check
1133 * an implied option later in the code. */
1134 switch (*shortname) {
1135 case 'r': case 'd': case 'l': case 'p':
1136 case 't': case 'g': case 'o': case 'D':
1137 refused_archive_part = op->val;
1138 break;
1139 case 'z':
1140 refused_compress = op->val;
1141 break;
1142 case '\0':
1143 if (wildmatch("delete", op->longName))
1144 refused_delete = op->val;
1145 else if (wildmatch("delete-before", op->longName))
1146 refused_delete_before = op->val;
1147 else if (wildmatch("delete-during", op->longName))
1148 refused_delete_during = op->val;
1149 else if (wildmatch("partial", op->longName))
1150 refused_partial = op->val;
1151 else if (wildmatch("progress", op->longName))
1152 refused_progress = op->val;
1153 else if (wildmatch("inplace", op->longName))
1154 refused_inplace = op->val;
1155 else if (wildmatch("no-iconv", op->longName))
1156 refused_no_iconv = op->val;
1157 break;
1158 }
1159 if (!is_wild)
1160 break;
1161 }
1162 }
1163 if (!found_match) {
1164 rprintf(FLOG, "No match for refuse-options string \"%s\"\n",
1165 bp);
1166 }
1167 if (!cp)
1168 break;
1169 *cp = ' ';
1170 bp = cp + 1;
1171 }
1172 }
1173
1174
1175 static int count_args(const char **argv)
1176 {
1177 int i = 0;
1178
1179 if (argv) {
1180 while (argv[i] != NULL)
1181 i++;
1182 }
1183
1184 return i;
1185 }
1186
1187
1188 static OFF_T parse_size_arg(char **size_arg, char def_suf)
1189 {
1190 int reps, mult, make_compatible = 0;
1191 const char *arg;
1192 OFF_T size = 1;
1193
1194 for (arg = *size_arg; isDigit(arg); arg++) {}
1195 if (*arg == '.')
1196 for (arg++; isDigit(arg); arg++) {}
1197 switch (*arg && *arg != '+' && *arg != '-' ? *arg++ : def_suf) {
1198 case 'b': case 'B':
1199 reps = 0;
1200 break;
1201 case 'k': case 'K':
1202 reps = 1;
1203 break;
1204 case 'm': case 'M':
1205 reps = 2;
1206 break;
1207 case 'g': case 'G':
1208 reps = 3;
1209 break;
1210 default:
1211 return -1;
1212 }
1213 if (*arg == 'b' || *arg == 'B')
1214 mult = 1000, make_compatible = 1, arg++;
1215 else if (!*arg || *arg == '+' || *arg == '-')
1216 mult = 1024;
1217 else if (strncasecmp(arg, "ib", 2) == 0)
1218 mult = 1024, arg += 2;
1219 else
1220 return -1;
1221 while (reps--)
1222 size *= mult;
1223 size *= atof(*size_arg);
1224 if ((*arg == '+' || *arg == '-') && arg[1] == '1')
1225 size += atoi(arg), make_compatible = 1, arg += 2;
1226 if (*arg)
1227 return -1;
1228 if (size > 0 && make_compatible && def_suf == 'b') {
1229 /* We convert this manually because we may need %lld precision,
1230 * and that's not a portable sprintf() escape. */
1231 char buf[128], *s = buf + sizeof buf - 1;
1232 OFF_T num = size;
1233 *s = '\0';
1234 while (num) {
1235 *--s = (char)(num % 10) + '0';
1236 num /= 10;
1237 }
1238 if (!(*size_arg = strdup(s)))
1239 out_of_memory("parse_size_arg");
1240 }
1241 return size;
1242 }
1243
1244
1245 static void create_refuse_error(int which)
1246 {
1247 /* The "which" value is the index + OPT_REFUSED_BASE. */
1248 struct poptOption *op = &long_options[which - OPT_REFUSED_BASE];
1249 int n = snprintf(err_buf, sizeof err_buf,
1250 "The server is configured to refuse --%s\n",
1251 op->longName) - 1;
1252 if (op->shortName) {
1253 snprintf(err_buf + n, sizeof err_buf - n,
1254 " (-%c)\n", op->shortName);
1255 }
1256 }
1257
1258
1259 /**
1260 * Process command line arguments. Called on both local and remote.
1261 *
1262 * @retval 1 if all options are OK; with globals set to appropriate
1263 * values
1264 *
1265 * @retval 0 on error, with err_buf containing an explanation
1266 **/
1267 int parse_arguments(int *argc_p, const char ***argv_p)
1268 {
1269 static poptContext pc;
1270 char *ref = lp_refuse_options(module_id);
1271 const char *arg, **argv = *argv_p;
1272 int argc = *argc_p;
1273 int opt;
1274
1275 if (ref && *ref)
1276 set_refuse_options(ref);
1277 if (am_daemon) {
1278 set_refuse_options("log-file*");
1279 #ifdef ICONV_OPTION
1280 if (!*lp_charset(module_id))
1281 set_refuse_options("iconv");
1282 #endif
1283 }
1284
1285 #ifdef ICONV_OPTION
1286 if (!am_daemon && protect_args <= 0 && (arg = getenv("RSYNC_ICONV")) != NULL && *arg)
1287 iconv_opt = strdup(arg);
1288 #endif
1289
1290 /* TODO: Call poptReadDefaultConfig; handle errors. */
1291
1292 /* The context leaks in case of an error, but if there's a
1293 * problem we always exit anyhow. */
1294 if (pc)
1295 poptFreeContext(pc);
1296 pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
1297 if (!am_server)
1298 poptReadDefaultConfig(pc, 0);
1299
1300 while ((opt = poptGetNextOpt(pc)) != -1) {
1301 /* most options are handled automatically by popt;
1302 * only special cases are returned and listed here. */
1303
1304 switch (opt) {
1305 case OPT_VERSION:
1306 print_rsync_version(FINFO);
1307 exit_cleanup(0);
1308
1309 case OPT_SERVER:
1310 if (!am_server) {
1311 /* Disable popt aliases on the server side and
1312 * then start parsing the options again. */
1313 poptFreeContext(pc);
1314 pc = poptGetContext(RSYNC_NAME, argc, argv,
1315 long_options, 0);
1316 am_server = 1;
1317 }
1318 #ifdef ICONV_OPTION
1319 iconv_opt = NULL;
1320 #endif
1321 break;
1322
1323 case OPT_SENDER:
1324 if (!am_server) {
1325 usage(FERROR);
1326 exit_cleanup(RERR_SYNTAX);
1327 }
1328 am_sender = 1;
1329 break;
1330
1331 case OPT_DAEMON:
1332 if (am_daemon) {
1333 strlcpy(err_buf,
1334 "Attempt to hack rsync thwarted!\n",
1335 sizeof err_buf);
1336 return 0;
1337 }
1338 #ifdef ICONV_OPTION
1339 iconv_opt = NULL;
1340 #endif
1341 protect_args = 0;
1342 poptFreeContext(pc);
1343 pc = poptGetContext(RSYNC_NAME, argc, argv,
1344 long_daemon_options, 0);
1345 while ((opt = poptGetNextOpt(pc)) != -1) {
1346 char **cpp;
1347 switch (opt) {
1348 case 'h':
1349 daemon_usage(FINFO);
1350 exit_cleanup(0);
1351
1352 case 'M':
1353 arg = poptGetOptArg(pc);
1354 if (!strchr(arg, '=')) {
1355 rprintf(FERROR,
1356 "--dparam value is missing an '=': %s\n",
1357 arg);
1358 goto daemon_error;
1359 }
1360 cpp = EXPAND_ITEM_LIST(&dparam_list, char *, 4);
1361 *cpp = strdup(arg);
1362 break;
1363
1364 case 'v':
1365 verbose++;
1366 break;
1367
1368 default:
1369 rprintf(FERROR,
1370 "rsync: %s: %s (in daemon mode)\n",
1371 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1372 poptStrerror(opt));
1373 goto daemon_error;
1374 }
1375 }
1376
1377 if (dparam_list.count && !set_dparams(1))
1378 exit_cleanup(RERR_SYNTAX);
1379
1380 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
1381 snprintf(err_buf, sizeof err_buf,
1382 "the --temp-dir path is WAY too long.\n");
1383 return 0;
1384 }
1385
1386 if (!daemon_opt) {
1387 rprintf(FERROR, "Daemon option(s) used without --daemon.\n");
1388 daemon_error:
1389 rprintf(FERROR,
1390 "(Type \"rsync --daemon --help\" for assistance with daemon mode.)\n");
1391 exit_cleanup(RERR_SYNTAX);
1392 }
1393
1394 *argv_p = argv = poptGetArgs(pc);
1395 *argc_p = argc = count_args(argv);
1396 am_starting_up = 0;
1397 daemon_opt = 0;
1398 am_daemon = 1;
1399 return 1;
1400
1401 case OPT_MODIFY_WINDOW:
1402 /* The value has already been set by popt, but
1403 * we need to remember that we're using a
1404 * non-default setting. */
1405 modify_window_set = 1;
1406 break;
1407
1408 case OPT_FILTER:
1409 parse_filter_str(&filter_list, poptGetOptArg(pc),
1410 rule_template(0), 0);
1411 break;
1412
1413 case OPT_EXCLUDE:
1414 parse_filter_str(&filter_list, poptGetOptArg(pc),
1415 rule_template(0), XFLG_OLD_PREFIXES);
1416 break;
1417
1418 case OPT_INCLUDE:
1419 parse_filter_str(&filter_list, poptGetOptArg(pc),
1420 rule_template(FILTRULE_INCLUDE), XFLG_OLD_PREFIXES);
1421 break;
1422
1423 case OPT_EXCLUDE_FROM:
1424 case OPT_INCLUDE_FROM:
1425 arg = poptGetOptArg(pc);
1426 if (sanitize_paths)
1427 arg = sanitize_path(NULL, arg, NULL, 0, SP_DEFAULT);
1428 if (daemon_filter_list.head) {
1429 int rej;
1430 char *cp = strdup(arg);
1431 if (!cp)
1432 out_of_memory("parse_arguments");
1433 if (!*cp)
1434 rej = 1;
1435 else {
1436 char *dir = cp + (*cp == '/' ? module_dirlen : 0);
1437 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
1438 rej = check_filter(&daemon_filter_list, FLOG, dir, 0) < 0;
1439 }
1440 free(cp);
1441 if (rej)
1442 goto options_rejected;
1443 }
1444 parse_filter_file(&filter_list, arg,
1445 rule_template(opt == OPT_INCLUDE_FROM ? FILTRULE_INCLUDE : 0),
1446 XFLG_FATAL_ERRORS | XFLG_OLD_PREFIXES);
1447 break;
1448
1449 case 'a':
1450 if (refused_archive_part) {
1451 create_refuse_error(refused_archive_part);
1452 return 0;
1453 }
1454 if (!recurse) /* preserve recurse == 2 */
1455 recurse = 1;
1456 #ifdef SUPPORT_LINKS
1457 preserve_links = 1;
1458 #endif
1459 preserve_perms = 1;
1460 preserve_times = 1;
1461 preserve_gid = 1;
1462 preserve_uid = 1;
1463 preserve_devices = 1;
1464 preserve_specials = 1;
1465 break;
1466
1467 case 'D':
1468 preserve_devices = preserve_specials = 1;
1469 break;
1470
1471 case OPT_NO_D:
1472 preserve_devices = preserve_specials = 0;
1473 break;
1474
1475 case 'h':
1476 human_readable++;
1477 break;
1478
1479 case 'H':
1480 preserve_hard_links++;
1481 break;
1482
1483 case 'i':
1484 itemize_changes++;
1485 break;
1486
1487 case 'v':
1488 verbose++;
1489 break;
1490
1491 case 'q':
1492 quiet++;
1493 break;
1494
1495 case 'x':
1496 one_file_system++;
1497 break;
1498
1499 case 'F':
1500 switch (++F_option_cnt) {
1501 case 1:
1502 parse_filter_str(&filter_list,": /.rsync-filter",rule_template(0),0);
1503 break;
1504 case 2:
1505 parse_filter_str(&filter_list,"- .rsync-filter",rule_template(0),0);
1506 break;
1507 }
1508 break;
1509
1510 case 'P':
1511 if (refused_partial || refused_progress) {
1512 create_refuse_error(refused_partial
1513 ? refused_partial : refused_progress);
1514 return 0;
1515 }
1516 do_progress = 1;
1517 keep_partial = 1;
1518 break;
1519
1520 case 'z':
1521 if (def_compress_level < Z_DEFAULT_COMPRESSION
1522 || def_compress_level > Z_BEST_COMPRESSION) {
1523 snprintf(err_buf, sizeof err_buf,
1524 "--compress-level value is invalid: %d\n",
1525 def_compress_level);
1526 return 0;
1527 }
1528 do_compression = def_compress_level != Z_NO_COMPRESSION;
1529 if (do_compression && refused_compress) {
1530 create_refuse_error(refused_compress);
1531 return 0;
1532 }
1533 break;
1534
1535 case 'M':
1536 arg = poptGetOptArg(pc);
1537 if (*arg != '-') {
1538 snprintf(err_buf, sizeof err_buf,
1539 "Remote option must start with a dash: %s\n", arg);
1540 return 0;
1541 }
1542 if (remote_option_cnt+2 >= remote_option_alloc) {
1543 remote_option_alloc += 16;
1544 remote_options = realloc_array(remote_options,
1545 const char *, remote_option_alloc);
1546 if (!remote_options)
1547 out_of_memory("parse_arguments");
1548 if (!remote_option_cnt)
1549 remote_options[0] = "ARG0";
1550 }
1551 remote_options[++remote_option_cnt] = arg;
1552 remote_options[remote_option_cnt+1] = NULL;
1553 break;
1554
1555 case OPT_WRITE_BATCH:
1556 /* batch_name is already set */
1557 write_batch = 1;
1558 break;
1559
1560 case OPT_ONLY_WRITE_BATCH:
1561 /* batch_name is already set */
1562 write_batch = -1;
1563 break;
1564
1565 case OPT_READ_BATCH:
1566 /* batch_name is already set */
1567 read_batch = 1;
1568 break;
1569
1570 case OPT_NO_ICONV:
1571 #ifdef ICONV_OPTION
1572 iconv_opt = NULL;
1573 #endif
1574 break;
1575
1576 case OPT_MAX_SIZE:
1577 if ((max_size = parse_size_arg(&max_size_arg, 'b')) <= 0) {
1578 snprintf(err_buf, sizeof err_buf,
1579 "--max-size value is invalid: %s\n",
1580 max_size_arg);
1581 return 0;
1582 }
1583 break;
1584
1585 case OPT_MIN_SIZE:
1586 if ((min_size = parse_size_arg(&min_size_arg, 'b')) <= 0) {
1587 snprintf(err_buf, sizeof err_buf,
1588 "--min-size value is invalid: %s\n",
1589 min_size_arg);
1590 return 0;
1591 }
1592 break;
1593
1594 case OPT_BWLIMIT:
1595 {
1596 OFF_T limit = parse_size_arg(&bwlimit_arg, 'K');
1597 if (limit < 0) {
1598 snprintf(err_buf, sizeof err_buf,
1599 "--bwlimit value is invalid: %s\n", bwlimit_arg);
1600 return 0;
1601 }
1602 bwlimit = (limit + 512) / 1024;
1603 if (limit && !bwlimit) {
1604 snprintf(err_buf, sizeof err_buf,
1605 "--bwlimit value is too small: %s\n", bwlimit_arg);
1606 return 0;
1607 }
1608 }
1609 break;
1610
1611 case OPT_APPEND:
1612 if (am_server)
1613 append_mode++;
1614 else
1615 append_mode = 1;
1616 break;
1617
1618 case OPT_LINK_DEST:
1619 #ifdef SUPPORT_HARD_LINKS
1620 link_dest = 1;
1621 dest_option = "--link-dest";
1622 goto set_dest_dir;
1623 #else
1624 snprintf(err_buf, sizeof err_buf,
1625 "hard links are not supported on this %s\n",
1626 am_server ? "server" : "client");
1627 return 0;
1628 #endif
1629
1630 case OPT_COPY_DEST:
1631 copy_dest = 1;
1632 dest_option = "--copy-dest";
1633 goto set_dest_dir;
1634
1635 case OPT_COMPARE_DEST:
1636 compare_dest = 1;
1637 dest_option = "--compare-dest";
1638 set_dest_dir:
1639 if (basis_dir_cnt >= MAX_BASIS_DIRS) {
1640 snprintf(err_buf, sizeof err_buf,
1641 "ERROR: at most %d %s args may be specified\n",
1642 MAX_BASIS_DIRS, dest_option);
1643 return 0;
1644 }
1645 /* We defer sanitizing this arg until we know what
1646 * our destination directory is going to be. */
1647 basis_dir[basis_dir_cnt++] = (char *)poptGetOptArg(pc);
1648 break;
1649
1650 case OPT_CHMOD:
1651 arg = poptGetOptArg(pc);
1652 if (!parse_chmod(arg, &chmod_modes)) {
1653 snprintf(err_buf, sizeof err_buf,
1654 "Invalid argument passed to --chmod (%s)\n",
1655 arg);
1656 return 0;
1657 }
1658 break;
1659
1660 case OPT_INFO:
1661 arg = poptGetOptArg(pc);
1662 parse_output_words(info_words, info_levels, arg, USER_PRIORITY);
1663 break;
1664
1665 case OPT_DEBUG:
1666 arg = poptGetOptArg(pc);
1667 parse_output_words(debug_words, debug_levels, arg, USER_PRIORITY);
1668 break;
1669
1670 case OPT_USERMAP:
1671 if (usermap) {
1672 if (usermap_via_chown) {
1673 snprintf(err_buf, sizeof err_buf,
1674 "--usermap conflicts with prior --chown.\n");
1675 return 0;
1676 }
1677 snprintf(err_buf, sizeof err_buf,
1678 "You can only specify --usermap once.\n");
1679 return 0;
1680 }
1681 usermap = (char *)poptGetOptArg(pc);
1682 usermap_via_chown = False;
1683 break;
1684
1685 case OPT_GROUPMAP:
1686 if (groupmap) {
1687 if (groupmap_via_chown) {
1688 snprintf(err_buf, sizeof err_buf,
1689 "--groupmap conflicts with prior --chown.\n");
1690 return 0;
1691 }
1692 snprintf(err_buf, sizeof err_buf,
1693 "You can only specify --groupmap once.\n");
1694 return 0;
1695 }
1696 groupmap = (char *)poptGetOptArg(pc);
1697 groupmap_via_chown = False;
1698 break;
1699
1700 case OPT_CHOWN: {
1701 const char *chown = poptGetOptArg(pc);
1702 int len;
1703 if ((arg = strchr(chown, ':')) != NULL)
1704 len = arg++ - chown;
1705 else
1706 len = strlen(chown);
1707 if (len) {
1708 if (usermap) {
1709 if (!usermap_via_chown) {
1710 snprintf(err_buf, sizeof err_buf,
1711 "--chown conflicts with prior --usermap.\n");
1712 return 0;
1713 }
1714 snprintf(err_buf, sizeof err_buf,
1715 "You can only specify a user-affecting --chown once.\n");
1716 return 0;
1717 }
1718 if (asprintf(&usermap, "*:%.*s", len, chown) < 0)
1719 out_of_memory("parse_arguments");
1720 usermap_via_chown = True;
1721 }
1722 if (arg && *arg) {
1723 if (groupmap) {
1724 if (!groupmap_via_chown) {
1725 snprintf(err_buf, sizeof err_buf,
1726 "--chown conflicts with prior --groupmap.\n");
1727 return 0;
1728 }
1729 snprintf(err_buf, sizeof err_buf,
1730 "You can only specify a group-affecting --chown once.\n");
1731 return 0;
1732 }
1733 if (asprintf(&groupmap, "*:%s", arg) < 0)
1734 out_of_memory("parse_arguments");
1735 groupmap_via_chown = True;
1736 }
1737 break;
1738 }
1739
1740 case OPT_HELP:
1741 usage(FINFO);
1742 exit_cleanup(0);
1743
1744 case 'A':
1745 #ifdef SUPPORT_ACLS
1746 preserve_acls = 1;
1747 preserve_perms = 1;
1748 break;
1749 #else
1750 /* FIXME: this should probably be ignored with a
1751 * warning and then countermeasures taken to
1752 * restrict group and other access in the presence
1753 * of any more restrictive ACLs, but this is safe
1754 * for now */
1755 snprintf(err_buf,sizeof(err_buf),
1756 "ACLs are not supported on this %s\n",
1757 am_server ? "server" : "client");
1758 return 0;
1759 #endif
1760
1761 case 'X':
1762 #ifdef SUPPORT_XATTRS
1763 preserve_xattrs++;
1764 break;
1765 #else
1766 snprintf(err_buf,sizeof(err_buf),
1767 "extended attributes are not supported on this %s\n",
1768 am_server ? "server" : "client");
1769 return 0;
1770 #endif
1771
1772 default:
1773 /* A large opt value means that set_refuse_options()
1774 * turned this option off. */
1775 if (opt >= OPT_REFUSED_BASE) {
1776 create_refuse_error(opt);
1777 return 0;
1778 }
1779 snprintf(err_buf, sizeof err_buf, "%s%s: %s\n",
1780 am_server ? "on remote machine: " : "",
1781 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1782 poptStrerror(opt));
1783 return 0;
1784 }
1785 }
1786
1787 if (protect_args < 0) {
1788 if (am_server)
1789 protect_args = 0;
1790 else if ((arg = getenv("RSYNC_PROTECT_ARGS")) != NULL && *arg)
1791 protect_args = atoi(arg) ? 1 : 0;
1792 else {
1793 #ifdef RSYNC_USE_PROTECTED_ARGS
1794 protect_args = 1;
1795 #else
1796 protect_args = 0;
1797 #endif
1798 }
1799 }
1800
1801 if (human_readable > 1 && argc == 2 && !am_server) {
1802 /* Allow the old meaning of 'h' (--help) on its own. */
1803 usage(FINFO);
1804 exit_cleanup(0);
1805 }
1806
1807 set_output_verbosity(verbose, DEFAULT_PRIORITY);
1808
1809 if (do_stats) {
1810 parse_output_words(info_words, info_levels,
1811 verbose > 1 ? "stats3" : "stats2", DEFAULT_PRIORITY);
1812 }
1813
1814 if (human_readable) {
1815 char buf[32];
1816 snprintf(buf, sizeof buf, "%f", 3.14);
1817 if (strchr(buf, '.') != NULL)
1818 number_separator = ',';
1819 else
1820 number_separator = '.';
1821 }
1822
1823 #ifdef ICONV_OPTION
1824 if (iconv_opt && protect_args != 2) {
1825 if (!am_server && strcmp(iconv_opt, "-") == 0)
1826 iconv_opt = NULL;
1827 else
1828 need_unsorted_flist = 1;
1829 }
1830 if (refused_no_iconv && !iconv_opt) {
1831 create_refuse_error(refused_no_iconv);
1832 return 0;
1833 }
1834 #endif
1835
1836 if (protect_args == 1 && am_server)
1837 return 1;
1838
1839 *argv_p = argv = poptGetArgs(pc);
1840 *argc_p = argc = count_args(argv);
1841
1842 #ifndef SUPPORT_LINKS
1843 if (preserve_links && !am_sender) {
1844 snprintf(err_buf, sizeof err_buf,
1845 "symlinks are not supported on this %s\n",
1846 am_server ? "server" : "client");
1847 return 0;
1848 }
1849 #endif
1850
1851 #ifndef SUPPORT_HARD_LINKS
1852 if (preserve_hard_links) {
1853 snprintf(err_buf, sizeof err_buf,
1854 "hard links are not supported on this %s\n",
1855 am_server ? "server" : "client");
1856 return 0;
1857 }
1858 #endif
1859
1860 #ifdef SUPPORT_XATTRS
1861 if (am_root < 0 && preserve_xattrs > 1) {
1862 snprintf(err_buf, sizeof err_buf,
1863 "--fake-super conflicts with -XX\n");
1864 return 0;
1865 }
1866 #else
1867 if (am_root < 0) {
1868 snprintf(err_buf, sizeof err_buf,
1869 "--fake-super requires an rsync with extended attributes enabled\n");
1870 return 0;
1871 }
1872 #endif
1873
1874 if (write_batch && read_batch) {
1875 snprintf(err_buf, sizeof err_buf,
1876 "--write-batch and --read-batch can not be used together\n");
1877 return 0;
1878 }
1879 if (write_batch > 0 || read_batch) {
1880 if (am_server) {
1881 rprintf(FINFO,
1882 "ignoring --%s-batch option sent to server\n",
1883 write_batch ? "write" : "read");
1884 /* We don't actually exit_cleanup(), so that we can
1885 * still service older version clients that still send
1886 * batch args to server. */
1887 read_batch = write_batch = 0;
1888 batch_name = NULL;
1889 } else if (dry_run)
1890 write_batch = 0;
1891 } else if (write_batch < 0 && dry_run)
1892 write_batch = 0;
1893 if (read_batch && files_from) {
1894 snprintf(err_buf, sizeof err_buf,
1895 "--read-batch cannot be used with --files-from\n");
1896 return 0;
1897 }
1898 if (read_batch && remove_source_files) {
1899 snprintf(err_buf, sizeof err_buf,
1900 "--read-batch cannot be used with --remove-%s-files\n",
1901 remove_source_files == 1 ? "source" : "sent");
1902 return 0;
1903 }
1904 if (batch_name && strlen(batch_name) > MAX_BATCH_NAME_LEN) {
1905 snprintf(err_buf, sizeof err_buf,
1906 "the batch-file name must be %d characters or less.\n",
1907 MAX_BATCH_NAME_LEN);
1908 return 0;
1909 }
1910
1911 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
1912 snprintf(err_buf, sizeof err_buf,
1913 "the --temp-dir path is WAY too long.\n");
1914 return 0;
1915 }
1916
1917 if (max_delete < 0 && max_delete != INT_MIN) {
1918 /* Negative numbers are treated as "no deletions". */
1919 max_delete = 0;
1920 }
1921
1922 if (compare_dest + copy_dest + link_dest > 1) {
1923 snprintf(err_buf, sizeof err_buf,
1924 "You may not mix --compare-dest, --copy-dest, and --link-dest.\n");
1925 return 0;
1926 }
1927
1928 if (files_from) {
1929 if (recurse == 1) /* preserve recurse == 2 */
1930 recurse = 0;
1931 if (xfer_dirs < 0)
1932 xfer_dirs = 1;
1933 }
1934
1935 if (argc < 2 && !read_batch && !am_server)
1936 list_only |= 1;
1937
1938 if (xfer_dirs >= 4) {
1939 parse_filter_str(&filter_list, "- /*/*", rule_template(0), 0);
1940 recurse = xfer_dirs = 1;
1941 } else if (recurse)
1942 xfer_dirs = 1;
1943 else if (xfer_dirs < 0)
1944 xfer_dirs = list_only ? 1 : 0;
1945
1946 if (relative_paths < 0)
1947 relative_paths = files_from? 1 : 0;
1948 if (!relative_paths)
1949 implied_dirs = 0;
1950
1951 if (delete_before + !!delete_during + delete_after > 1) {
1952 snprintf(err_buf, sizeof err_buf,
1953 "You may not combine multiple --delete-WHEN options.\n");
1954 return 0;
1955 }
1956 if (delete_before || delete_during || delete_after)
1957 delete_mode = 1;
1958 else if (delete_mode || delete_excluded) {
1959 /* Only choose now between before & during if one is refused. */
1960 if (refused_delete_before) {
1961 if (!refused_delete_during)
1962 delete_during = 1;
1963 else {
1964 create_refuse_error(refused_delete_before);
1965 return 0;
1966 }
1967 } else if (refused_delete_during)
1968 delete_before = 1;
1969 delete_mode = 1;
1970 }
1971 if (!xfer_dirs && delete_mode) {
1972 snprintf(err_buf, sizeof err_buf,
1973 "--delete does not work without --recursive (-r) or --dirs (-d).\n");
1974 return 0;
1975 }
1976
1977 if (missing_args == 3) /* simplify if both options were specified */
1978 missing_args = 2;
1979 if (refused_delete && (delete_mode || missing_args == 2)) {
1980 create_refuse_error(refused_delete);
1981 return 0;
1982 }
1983
1984 if (remove_source_files) {
1985 /* We only want to infer this refusal of --remove-source-files
1986 * via the refusal of "delete", not any of the "delete-FOO"
1987 * options. */
1988 if (refused_delete && am_sender) {
1989 create_refuse_error(refused_delete);
1990 return 0;
1991 }
1992 need_messages_from_generator = 1;
1993 }
1994
1995 if (munge_symlinks && !am_daemon) {
1996 STRUCT_STAT st;
1997 char prefix[SYMLINK_PREFIX_LEN]; /* NOT +1 ! */
1998 strlcpy(prefix, SYMLINK_PREFIX, sizeof prefix); /* trim the trailing slash */
1999 if (do_stat(prefix, &st) == 0 && S_ISDIR(st.st_mode)) {
2000 rprintf(FERROR, "Symlink munging is unsafe when a %s directory exists.\n",
2001 prefix);
2002 exit_cleanup(RERR_UNSUPPORTED);
2003 }
2004 }
2005
2006 if (sanitize_paths) {
2007 int i;
2008 for (i = argc; i-- > 0; )
2009 argv[i] = sanitize_path(NULL, argv[i], "", 0, SP_KEEP_DOT_DIRS);
2010 if (tmpdir)
2011 tmpdir = sanitize_path(NULL, tmpdir, NULL, 0, SP_DEFAULT);
2012 if (backup_dir)
2013 backup_dir = sanitize_path(NULL, backup_dir, NULL, 0, SP_DEFAULT);
2014 }
2015 if (daemon_filter_list.head && !am_sender) {
2016 filter_rule_list *elp = &daemon_filter_list;
2017 if (tmpdir) {
2018 char *dir;
2019 if (!*tmpdir)
2020 goto options_rejected;
2021 dir = tmpdir + (*tmpdir == '/' ? module_dirlen : 0);
2022 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2023 if (check_filter(elp, FLOG, dir, 1) < 0)
2024 goto options_rejected;
2025 }
2026 if (backup_dir) {
2027 char *dir;
2028 if (!*backup_dir)
2029 goto options_rejected;
2030 dir = backup_dir + (*backup_dir == '/' ? module_dirlen : 0);
2031 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2032 if (check_filter(elp, FLOG, dir, 1) < 0)
2033 goto options_rejected;
2034 }
2035 }
2036
2037 if (!backup_suffix)
2038 backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
2039 backup_suffix_len = strlen(backup_suffix);
2040 if (strchr(backup_suffix, '/') != NULL) {
2041 snprintf(err_buf, sizeof err_buf,
2042 "--suffix cannot contain slashes: %s\n",
2043 backup_suffix);
2044 return 0;
2045 }
2046 if (backup_dir) {
2047 size_t len;
2048 while (*backup_dir == '.' && backup_dir[1] == '/')
2049 backup_dir += 2;
2050 if (*backup_dir == '.' && backup_dir[1] == '\0')
2051 backup_dir++;
2052 len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
2053 if (len > sizeof backup_dir_buf - 128) {
2054 snprintf(err_buf, sizeof err_buf,
2055 "the --backup-dir path is WAY too long.\n");
2056 return 0;
2057 }
2058 backup_dir_len = (int)len;
2059 if (!backup_dir_len) {
2060 backup_dir_len = -1;
2061 backup_dir = NULL;
2062 } else if (backup_dir_buf[backup_dir_len - 1] != '/') {
2063 backup_dir_buf[backup_dir_len++] = '/';
2064 backup_dir_buf[backup_dir_len] = '\0';
2065 }
2066 backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
2067 }
2068 if (backup_dir) {
2069 /* No need for a suffix or a protect rule. */
2070 } else if (!backup_suffix_len && (!am_server || !am_sender)) {
2071 snprintf(err_buf, sizeof err_buf,
2072 "--suffix cannot be empty %s\n", backup_dir_len < 0
2073 ? "when --backup-dir is the same as the dest dir"
2074 : "without a --backup-dir");
2075 return 0;
2076 } else if (make_backups && delete_mode && !delete_excluded && !am_server) {
2077 snprintf(backup_dir_buf, sizeof backup_dir_buf,
2078 "P *%s", backup_suffix);
2079 parse_filter_str(&filter_list, backup_dir_buf, rule_template(0), 0);
2080 }
2081
2082 if (preserve_times) {
2083 preserve_times = PRESERVE_FILE_TIMES;
2084 if (!omit_dir_times)
2085 preserve_times |= PRESERVE_DIR_TIMES;
2086 #ifdef CAN_SET_SYMLINK_TIMES
2087 if (!omit_link_times)
2088 preserve_times |= PRESERVE_LINK_TIMES;
2089 #endif
2090 }
2091
2092 if (make_backups && !backup_dir) {
2093 omit_dir_times = 0; /* Implied, so avoid -O to sender. */
2094 preserve_times &= ~PRESERVE_DIR_TIMES;
2095 }
2096
2097 if (stdout_format) {
2098 if (am_server && log_format_has(stdout_format, 'I'))
2099 stdout_format_has_i = 2;
2100 else if (log_format_has(stdout_format, 'i'))
2101 stdout_format_has_i = itemize_changes | 1;
2102 if (!log_format_has(stdout_format, 'b')
2103 && !log_format_has(stdout_format, 'c')
2104 && !log_format_has(stdout_format, 'C'))
2105 log_before_transfer = !am_server;
2106 } else if (itemize_changes) {
2107 stdout_format = "%i %n%L";
2108 stdout_format_has_i = itemize_changes;
2109 log_before_transfer = !am_server;
2110 }
2111
2112 if (do_progress && !am_server) {
2113 if (!log_before_transfer && INFO_EQ(NAME, 0))
2114 parse_output_words(info_words, info_levels, "name", DEFAULT_PRIORITY);
2115 parse_output_words(info_words, info_levels, "flist2,progress", DEFAULT_PRIORITY);
2116 }
2117
2118 if (dry_run)
2119 do_xfers = 0;
2120
2121 set_io_timeout(io_timeout);
2122
2123 if (INFO_GTE(NAME, 1) && !stdout_format) {
2124 stdout_format = "%n%L";
2125 log_before_transfer = !am_server;
2126 }
2127 if (stdout_format_has_i || log_format_has(stdout_format, 'o'))
2128 stdout_format_has_o_or_i = 1;
2129
2130 if (logfile_name && !am_daemon) {
2131 if (!logfile_format) {
2132 logfile_format = "%i %n%L";
2133 logfile_format_has_i = logfile_format_has_o_or_i = 1;
2134 } else {
2135 if (log_format_has(logfile_format, 'i'))
2136 logfile_format_has_i = 1;
2137 if (logfile_format_has_i || log_format_has(logfile_format, 'o'))
2138 logfile_format_has_o_or_i = 1;
2139 }
2140 log_init(0);
2141 } else if (!am_daemon)
2142 logfile_format = NULL;
2143
2144 if (daemon_bwlimit && (!bwlimit || bwlimit > daemon_bwlimit))
2145 bwlimit = daemon_bwlimit;
2146 if (bwlimit) {
2147 bwlimit_writemax = (size_t)bwlimit * 128;
2148 if (bwlimit_writemax < 512)
2149 bwlimit_writemax = 512;
2150 }
2151
2152 if (sparse_files && inplace) {
2153 /* Note: we don't check for this below, because --append is
2154 * OK with --sparse (as long as redos are handled right). */
2155 snprintf(err_buf, sizeof err_buf,
2156 "--sparse cannot be used with --inplace\n");
2157 return 0;
2158 }
2159
2160 if (append_mode) {
2161 if (whole_file > 0) {
2162 snprintf(err_buf, sizeof err_buf,
2163 "--append cannot be used with --whole-file\n");
2164 return 0;
2165 }
2166 if (refused_inplace) {
2167 create_refuse_error(refused_inplace);
2168 return 0;
2169 }
2170 inplace = 1;
2171 }
2172
2173 if (delay_updates && !partial_dir)
2174 partial_dir = tmp_partialdir;
2175
2176 if (inplace) {
2177 #ifdef HAVE_FTRUNCATE
2178 if (partial_dir) {
2179 snprintf(err_buf, sizeof err_buf,
2180 "--%s cannot be used with --%s\n",
2181 append_mode ? "append" : "inplace",
2182 delay_updates ? "delay-updates" : "partial-dir");
2183 return 0;
2184 }
2185 /* --inplace implies --partial for refusal purposes, but we
2186 * clear the keep_partial flag for internal logic purposes. */
2187 if (refused_partial) {
2188 create_refuse_error(refused_partial);
2189 return 0;
2190 }
2191 keep_partial = 0;
2192 #else
2193 snprintf(err_buf, sizeof err_buf,
2194 "--%s is not supported on this %s\n",
2195 append_mode ? "append" : "inplace",
2196 am_server ? "server" : "client");
2197 return 0;
2198 #endif
2199 } else {
2200 if (keep_partial && !partial_dir && !am_server) {
2201 if ((arg = getenv("RSYNC_PARTIAL_DIR")) != NULL && *arg)
2202 partial_dir = strdup(arg);
2203 }
2204 if (partial_dir) {
2205 if (*partial_dir)
2206 clean_fname(partial_dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2207 if (!*partial_dir || strcmp(partial_dir, ".") == 0)
2208 partial_dir = NULL;
2209 if (!partial_dir && refused_partial) {
2210 create_refuse_error(refused_partial);
2211 return 0;
2212 }
2213 keep_partial = 1;
2214 }
2215 }
2216
2217 if (files_from) {
2218 char *h, *p;
2219 int q;
2220 if (argc > 2 || (!am_daemon && argc == 1)) {
2221 usage(FERROR);
2222 exit_cleanup(RERR_SYNTAX);
2223 }
2224 if (strcmp(files_from, "-") == 0) {
2225 filesfrom_fd = 0;
2226 if (am_server)
2227 filesfrom_host = ""; /* reading from socket */
2228 } else if ((p = check_for_hostspec(files_from, &h, &q)) != 0) {
2229 if (am_server) {
2230 snprintf(err_buf, sizeof err_buf,
2231 "The --files-from sent to the server cannot specify a host.\n");
2232 return 0;
2233 }
2234 files_from = p;
2235 filesfrom_host = h;
2236 if (strcmp(files_from, "-") == 0) {
2237 snprintf(err_buf, sizeof err_buf,
2238 "Invalid --files-from remote filename\n");
2239 return 0;
2240 }
2241 } else {
2242 if (sanitize_paths)
2243 files_from = sanitize_path(NULL, files_from, NULL, 0, SP_DEFAULT);
2244 if (daemon_filter_list.head) {
2245 char *dir;
2246 if (!*files_from)
2247 goto options_rejected;
2248 dir = files_from + (*files_from == '/' ? module_dirlen : 0);
2249 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2250 if (check_filter(&daemon_filter_list, FLOG, dir, 0) < 0)
2251 goto options_rejected;
2252 }
2253 filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
2254 if (filesfrom_fd < 0) {
2255 snprintf(err_buf, sizeof err_buf,
2256 "failed to open files-from file %s: %s\n",
2257 files_from, strerror(errno));
2258 return 0;
2259 }
2260 }
2261 }
2262
2263 am_starting_up = 0;
2264
2265 return 1;
2266
2267 options_rejected:
2268 snprintf(err_buf, sizeof err_buf,
2269 "Your options have been rejected by the server.\n");
2270 return 0;
2271 }
2272
2273
2274 /**
2275 * Construct a filtered list of options to pass through from the
2276 * client to the server.
2277 *
2278 * This involves setting options that will tell the server how to
2279 * behave, and also filtering out options that are processed only
2280 * locally.
2281 **/
2282 void server_options(char **args, int *argc_p)
2283 {
2284 static char argstr[64];
2285 int ac = *argc_p;
2286 uchar where;
2287 char *arg;
2288 int i, x;
2289
2290 /* This should always remain first on the server's command-line. */
2291 args[ac++] = "--server";
2292
2293 if (daemon_over_rsh > 0) {
2294 args[ac++] = "--daemon";
2295 *argc_p = ac;
2296 /* if we're passing --daemon, we're done */
2297 return;
2298 }
2299
2300 if (!am_sender)
2301 args[ac++] = "--sender";
2302
2303 x = 1;
2304 argstr[0] = '-';
2305
2306 if (protect_args)
2307 argstr[x++] = 's';
2308
2309 for (i = 0; i < verbose; i++)
2310 argstr[x++] = 'v';
2311
2312 /* the -q option is intentionally left out */
2313 if (make_backups)
2314 argstr[x++] = 'b';
2315 if (update_only)
2316 argstr[x++] = 'u';
2317 if (!do_xfers) /* Note: NOT "dry_run"! */
2318 argstr[x++] = 'n';
2319 if (preserve_links)
2320 argstr[x++] = 'l';
2321 if ((xfer_dirs >= 2 && xfer_dirs < 4)
2322 || (xfer_dirs && !recurse && (list_only || (delete_mode && am_sender))))
2323 argstr[x++] = 'd';
2324 if (am_sender) {
2325 if (keep_dirlinks)
2326 argstr[x++] = 'K';
2327 if (prune_empty_dirs)
2328 argstr[x++] = 'm';
2329 if (omit_dir_times)
2330 argstr[x++] = 'O';
2331 if (omit_link_times)
2332 argstr[x++] = 'J';
2333 } else {
2334 if (copy_links)
2335 argstr[x++] = 'L';
2336 if (copy_dirlinks)
2337 argstr[x++] = 'k';
2338 }
2339
2340 if (whole_file > 0)
2341 argstr[x++] = 'W';
2342 /* We don't need to send --no-whole-file, because it's the
2343 * default for remote transfers, and in any case old versions
2344 * of rsync will not understand it. */
2345
2346 if (preserve_hard_links) {
2347 argstr[x++] = 'H';
2348 if (preserve_hard_links > 1)
2349 argstr[x++] = 'H';
2350 }
2351 if (preserve_uid)
2352 argstr[x++] = 'o';
2353 if (preserve_gid)
2354 argstr[x++] = 'g';
2355 if (preserve_devices) /* ignore preserve_specials here */
2356 argstr[x++] = 'D';
2357 if (preserve_times)
2358 argstr[x++] = 't';
2359 if (preserve_perms)
2360 argstr[x++] = 'p';
2361 else if (preserve_executability && am_sender)
2362 argstr[x++] = 'E';
2363 #ifdef SUPPORT_ACLS
2364 if (preserve_acls)
2365 argstr[x++] = 'A';
2366 #endif
2367 #ifdef SUPPORT_XATTRS
2368 if (preserve_xattrs) {
2369 argstr[x++] = 'X';
2370 if (preserve_xattrs > 1)
2371 argstr[x++] = 'X';
2372 }
2373 #endif
2374 if (recurse)
2375 argstr[x++] = 'r';
2376 if (always_checksum)
2377 argstr[x++] = 'c';
2378 if (cvs_exclude)
2379 argstr[x++] = 'C';
2380 if (ignore_times)
2381 argstr[x++] = 'I';
2382 if (relative_paths)
2383 argstr[x++] = 'R';
2384 if (one_file_system) {
2385 argstr[x++] = 'x';
2386 if (one_file_system > 1)
2387 argstr[x++] = 'x';
2388 }
2389 if (sparse_files)
2390 argstr[x++] = 'S';
2391 if (do_compression)
2392 argstr[x++] = 'z';
2393
2394 set_allow_inc_recurse();
2395
2396 /* Checking the pre-negotiated value allows --protocol=29 override. */
2397 if (protocol_version >= 30) {
2398 /* We make use of the -e option to let the server know about
2399 * any pre-release protocol version && some behavior flags. */
2400 argstr[x++] = 'e';
2401 #if SUBPROTOCOL_VERSION != 0
2402 if (protocol_version == PROTOCOL_VERSION) {
2403 x += snprintf(argstr+x, sizeof argstr - x,
2404 "%d.%d",
2405 PROTOCOL_VERSION, SUBPROTOCOL_VERSION);
2406 } else
2407 #endif
2408 argstr[x++] = '.';
2409 if (allow_inc_recurse)
2410 argstr[x++] = 'i';
2411 #ifdef CAN_SET_SYMLINK_TIMES
2412 argstr[x++] = 'L';
2413 #endif
2414 #ifdef ICONV_OPTION
2415 argstr[x++] = 's';
2416 #endif
2417 }
2418
2419 if (x >= (int)sizeof argstr) { /* Not possible... */
2420 rprintf(FERROR, "argstr overflow in server_options().\n");
2421 exit_cleanup(RERR_MALLOC);
2422 }
2423
2424 argstr[x] = '\0';
2425
2426 if (x > 1)
2427 args[ac++] = argstr;
2428
2429 #ifdef ICONV_OPTION
2430 if (iconv_opt) {
2431 char *set = strchr(iconv_opt, ',');
2432 if (set)
2433 set++;
2434 else
2435 set = iconv_opt;
2436 if (asprintf(&arg, "--iconv=%s", set) < 0)
2437 goto oom;
2438 args[ac++] = arg;
2439 }
2440 #endif
2441
2442 if (protect_args && !local_server) /* unprotected args stop here */
2443 args[ac++] = NULL;
2444
2445 if (list_only > 1)
2446 args[ac++] = "--list-only";
2447
2448 /* This makes sure that the remote rsync can handle deleting with -d
2449 * sans -r because the --no-r option was added at the same time. */
2450 if (xfer_dirs && !recurse && delete_mode && am_sender)
2451 args[ac++] = "--no-r";
2452
2453 if (do_compression && def_compress_level != Z_DEFAULT_COMPRESSION) {
2454 if (asprintf(&arg, "--compress-level=%d", def_compress_level) < 0)
2455 goto oom;
2456 args[ac++] = arg;
2457 }
2458
2459 if (preserve_devices) {
2460 /* Note: sending "--devices" would not be backward-compatible. */
2461 if (!preserve_specials)
2462 args[ac++] = "--no-specials"; /* -D is already set. */
2463 } else if (preserve_specials)
2464 args[ac++] = "--specials";
2465
2466 /* The server side doesn't use our log-format, but in certain
2467 * circumstances they need to know a little about the option. */
2468 if (stdout_format && am_sender) {
2469 /* Use --log-format, not --out-format, for compatibility. */
2470 if (stdout_format_has_i > 1)
2471 args[ac++] = "--log-format=%i%I";
2472 else if (stdout_format_has_i)
2473 args[ac++] = "--log-format=%i";
2474 else if (stdout_format_has_o_or_i)
2475 args[ac++] = "--log-format=%o";
2476 else if (!verbose)
2477 args[ac++] = "--log-format=X";
2478 }
2479
2480 if (block_size) {
2481 if (asprintf(&arg, "-B%lu", block_size) < 0)
2482 goto oom;
2483 args[ac++] = arg;
2484 }
2485
2486 if (io_timeout) {
2487 if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
2488 goto oom;
2489 args[ac++] = arg;
2490 }
2491
2492 if (bwlimit) {
2493 if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
2494 goto oom;
2495 args[ac++] = arg;
2496 }
2497
2498 if (backup_dir) {
2499 args[ac++] = "--backup-dir";
2500 args[ac++] = backup_dir;
2501 }
2502
2503 /* Only send --suffix if it specifies a non-default value. */
2504 if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
2505 /* We use the following syntax to avoid weirdness with '~'. */
2506 if (asprintf(&arg, "--suffix=%s", backup_suffix) < 0)
2507 goto oom;
2508 args[ac++] = arg;
2509 }
2510
2511 if (am_sender) {
2512 if (max_delete > 0) {
2513 if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
2514 goto oom;
2515 args[ac++] = arg;
2516 } else if (max_delete == 0)
2517 args[ac++] = "--max-delete=-1";
2518 if (min_size) {
2519 args[ac++] = "--min-size";
2520 args[ac++] = min_size_arg;
2521 }
2522 if (max_size) {
2523 args[ac++] = "--max-size";
2524 args[ac++] = max_size_arg;
2525 }
2526 if (delete_before)
2527 args[ac++] = "--delete-before";
2528 else if (delete_during == 2)
2529 args[ac++] = "--delete-delay";
2530 else if (delete_during)
2531 args[ac++] = "--delete-during";
2532 else if (delete_after)
2533 args[ac++] = "--delete-after";
2534 else if (delete_mode && !delete_excluded)
2535 args[ac++] = "--delete";
2536 if (delete_excluded)
2537 args[ac++] = "--delete-excluded";
2538 if (force_delete)
2539 args[ac++] = "--force";
2540 if (write_batch < 0)
2541 args[ac++] = "--only-write-batch=X";
2542 if (am_root > 1)
2543 args[ac++] = "--super";
2544 if (size_only)
2545 args[ac++] = "--size-only";
2546 if (do_stats)
2547 args[ac++] = "--stats";
2548 } else {
2549 if (skip_compress) {
2550 if (asprintf(&arg, "--skip-compress=%s", skip_compress) < 0)
2551 goto oom;
2552 args[ac++] = arg;
2553 }
2554 }
2555
2556 /* --delete-missing-args needs the cooperation of both sides, but
2557 * the sender can handle --ignore-missing-args by itself. */
2558 if (missing_args == 2)
2559 args[ac++] = "--delete-missing-args";
2560 else if (missing_args == 1 && !am_sender)
2561 args[ac++] = "--ignore-missing-args";
2562
2563 if (modify_window_set) {
2564 if (asprintf(&arg, "--modify-window=%d", modify_window) < 0)
2565 goto oom;
2566 args[ac++] = arg;
2567 }
2568
2569 if (checksum_seed) {
2570 if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
2571 goto oom;
2572 args[ac++] = arg;
2573 }
2574
2575 if (partial_dir && am_sender) {
2576 if (partial_dir != tmp_partialdir) {
2577 args[ac++] = "--partial-dir";
2578 args[ac++] = partial_dir;
2579 }
2580 if (delay_updates)
2581 args[ac++] = "--delay-updates";
2582 } else if (keep_partial && am_sender)
2583 args[ac++] = "--partial";
2584
2585 if (ignore_errors)
2586 args[ac++] = "--ignore-errors";
2587
2588 if (copy_unsafe_links)
2589 args[ac++] = "--copy-unsafe-links";
2590
2591 if (safe_symlinks)
2592 args[ac++] = "--safe-links";
2593
2594 if (numeric_ids)
2595 args[ac++] = "--numeric-ids";
2596
2597 if (use_qsort)
2598 args[ac++] = "--use-qsort";
2599
2600 if (am_sender) {
2601 if (usermap) {
2602 if (asprintf(&arg, "--usermap=%s", usermap) < 0)
2603 goto oom;
2604 args[ac++] = arg;
2605 }
2606
2607 if (groupmap) {
2608 if (asprintf(&arg, "--groupmap=%s", groupmap) < 0)
2609 goto oom;
2610 args[ac++] = arg;
2611 }
2612
2613 if (ignore_existing)
2614 args[ac++] = "--ignore-existing";
2615
2616 /* Backward compatibility: send --existing, not --ignore-non-existing. */
2617 if (ignore_non_existing)
2618 args[ac++] = "--existing";
2619
2620 if (tmpdir) {
2621 args[ac++] = "--temp-dir";
2622 args[ac++] = tmpdir;
2623 }
2624
2625 if (basis_dir[0]) {
2626 /* the server only needs this option if it is not the sender,
2627 * and it may be an older version that doesn't know this
2628 * option, so don't send it if client is the sender.
2629 */
2630 for (i = 0; i < basis_dir_cnt; i++) {
2631 args[ac++] = dest_option;
2632 args[ac++] = basis_dir[i];
2633 }
2634 }
2635 }
2636
2637 /* What flags do we need to send to the other side? */
2638 where = (am_server ? W_CLI : W_SRV) | (am_sender ? W_REC : W_SND);
2639 arg = make_output_option(info_words, info_levels, where);
2640 if (arg)
2641 args[ac++] = arg;
2642
2643 arg = make_output_option(debug_words, debug_levels, where);
2644 if (arg)
2645 args[ac++] = arg;
2646
2647 if (append_mode) {
2648 if (append_mode > 1)
2649 args[ac++] = "--append";
2650 args[ac++] = "--append";
2651 } else if (inplace)
2652 args[ac++] = "--inplace";
2653
2654 if (files_from && (!am_sender || filesfrom_host)) {
2655 if (filesfrom_host) {
2656 args[ac++] = "--files-from";
2657 args[ac++] = files_from;
2658 if (eol_nulls)
2659 args[ac++] = "--from0";
2660 } else {
2661 args[ac++] = "--files-from=-";
2662 args[ac++] = "--from0";
2663 }
2664 if (!relative_paths)
2665 args[ac++] = "--no-relative";
2666 }
2667 /* It's OK that this checks the upper-bound of the protocol_version. */
2668 if (relative_paths && !implied_dirs && (!am_sender || protocol_version >= 30))
2669 args[ac++] = "--no-implied-dirs";
2670
2671 if (fuzzy_basis && am_sender)
2672 args[ac++] = "--fuzzy";
2673
2674 if (remove_source_files == 1)
2675 args[ac++] = "--remove-source-files";
2676 else if (remove_source_files)
2677 args[ac++] = "--remove-sent-files";
2678
2679 if (ac > MAX_SERVER_ARGS) { /* Not possible... */
2680 rprintf(FERROR, "argc overflow in server_options().\n");
2681 exit_cleanup(RERR_MALLOC);
2682 }
2683
2684 if (remote_option_cnt) {
2685 int j;
2686 if (ac + remote_option_cnt > MAX_SERVER_ARGS) {
2687 rprintf(FERROR, "too many remote options specified.\n");
2688 exit_cleanup(RERR_SYNTAX);
2689 }
2690 for (j = 1; j <= remote_option_cnt; j++)
2691 args[ac++] = (char*)remote_options[j];
2692 }
2693
2694 *argc_p = ac;
2695 return;
2696
2697 oom:
2698 out_of_memory("server_options");
2699 }
2700
2701 /* If str points to a valid hostspec, return allocated memory containing the
2702 * [USER@]HOST part of the string, and set the path_start_ptr to the part of
2703 * the string after the host part. Otherwise, return NULL. If port_ptr is
2704 * non-NULL, we must be parsing an rsync:// URL hostname, and we will set
2705 * *port_ptr if a port number is found. Note that IPv6 IPs will have their
2706 * (required for parsing) [ and ] chars elided from the returned string. */
2707 static char *parse_hostspec(char *str, char **path_start_ptr, int *port_ptr)
2708 {
2709 char *s, *host_start = str;
2710 int hostlen = 0, userlen = 0;
2711 char *ret;
2712
2713 for (s = str; ; s++) {
2714 if (!*s) {
2715 /* It is only OK if we run out of string with rsync:// */
2716 if (!port_ptr)
2717 return NULL;
2718 if (!hostlen)
2719 hostlen = s - host_start;
2720 break;
2721 }
2722 if (*s == ':' || *s == '/') {
2723 if (!hostlen)
2724 hostlen = s - host_start;
2725 if (*s++ == '/') {
2726 if (!port_ptr)
2727 return NULL;
2728 } else if (port_ptr) {
2729 *port_ptr = atoi(s);
2730 while (isDigit(s)) s++;
2731 if (*s && *s++ != '/')
2732 return NULL;
2733 }
2734 break;
2735 }
2736 if (*s == '@') {
2737 userlen = s - str + 1;
2738 host_start = s + 1;
2739 } else if (*s == '[') {
2740 if (s != host_start++)
2741 return NULL;
2742 while (*s && *s != ']' && *s != '/') s++; /*SHARED ITERATOR*/
2743 hostlen = s - host_start;
2744 if (*s != ']' || (s[1] && s[1] != '/' && s[1] != ':') || !hostlen)
2745 return NULL;
2746 }
2747 }
2748
2749 *path_start_ptr = s;
2750 ret = new_array(char, userlen + hostlen + 1);
2751 if (userlen)
2752 strlcpy(ret, str, userlen + 1);
2753 strlcpy(ret + userlen, host_start, hostlen + 1);
2754 return ret;
2755 }
2756
2757 /* Look for a HOST specfication of the form "HOST:PATH", "HOST::PATH", or
2758 * "rsync://HOST:PORT/PATH". If found, *host_ptr will be set to some allocated
2759 * memory with the HOST. If a daemon-accessing spec was specified, the value
2760 * of *port_ptr will contain a non-0 port number, otherwise it will be set to
2761 * 0. The return value is a pointer to the PATH. Note that the HOST spec can
2762 * be an IPv6 literal address enclosed in '[' and ']' (such as "[::1]" or
2763 * "[::ffff:127.0.0.1]") which is returned without the '[' and ']'. */
2764 char *check_for_hostspec(char *s, char **host_ptr, int *port_ptr)
2765 {
2766 char *path;
2767
2768 if (port_ptr && strncasecmp(URL_PREFIX, s, strlen(URL_PREFIX)) == 0) {
2769 *host_ptr = parse_hostspec(s + strlen(URL_PREFIX), &path, port_ptr);
2770 if (*host_ptr) {
2771 if (!*port_ptr)
2772 *port_ptr = RSYNC_PORT;
2773 return path;
2774 }
2775 }
2776
2777 *host_ptr = parse_hostspec(s, &path, NULL);
2778 if (!*host_ptr)
2779 return NULL;
2780
2781 if (*path == ':') {
2782 if (port_ptr && !*port_ptr)
2783 *port_ptr = RSYNC_PORT;
2784 return path + 1;
2785 }
2786 if (port_ptr)
2787 *port_ptr = 0;
2788
2789 return path;
2790 }