1 /*
2 * Command-line (and received via daemon-socket) option parsing.
3 *
4 * Copyright (C) 1998-2001 Andrew Tridgell <tridge@samba.org>
5 * Copyright (C) 2000, 2001, 2002 Martin Pool <mbp@samba.org>
6 * Copyright (C) 2002-2020 Wayne Davison
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, visit the http://fsf.org website.
20 */
21
22 #include "rsync.h"
23 #include "itypes.h"
24 #include "ifuncs.h"
25 #include <popt.h>
26
27 extern int module_id;
28 extern int local_server;
29 extern int sanitize_paths;
30 extern unsigned int module_dirlen;
31 extern filter_rule_list filter_list;
32 extern filter_rule_list daemon_filter_list;
33
34 int make_backups = 0;
35
36 /**
37 * If 1, send the whole file as literal data rather than trying to
38 * create an incremental diff.
39 *
40 * If -1, then look at whether we're local or remote and go by that.
41 *
42 * @sa disable_deltas_p()
43 **/
44 int whole_file = -1;
45
46 int append_mode = 0;
47 int keep_dirlinks = 0;
48 int copy_dirlinks = 0;
49 int copy_links = 0;
50 int write_devices = 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_fileflags = 0;
57 int preserve_executability = 0;
58 int preserve_devices = 0;
59 int preserve_specials = 0;
60 int preserve_uid = 0;
61 int preserve_gid = 0;
62 int preserve_times = 0;
63 int preserve_atimes = 0;
64 int preserve_crtimes = 0;
65 int update_only = 0;
66 int open_noatime = 0;
67 int cvs_exclude = 0;
68 int dry_run = 0;
69 int do_xfers = 1;
70 int ignore_times = 0;
71 int delete_mode = 0;
72 int delete_during = 0;
73 int delete_before = 0;
74 int delete_after = 0;
75 int delete_excluded = 0;
76 int remove_source_files = 0;
77 int one_file_system = 0;
78 int protocol_version = PROTOCOL_VERSION;
79 int sparse_files = 0;
80 int preallocate_files = 0;
81 int do_compression = 0;
82 int do_compression_level = CLVL_NOT_SPECIFIED;
83 int am_root = 0; /* 0 = normal, 1 = root, 2 = --super, -1 = --fake-super */
84 int am_server = 0;
85 int am_sender = 0;
86 int am_starting_up = 1;
87 int relative_paths = -1;
88 int implied_dirs = 1;
89 int missing_args = 0; /* 0 = FERROR_XFER, 1 = ignore, 2 = delete */
90 int numeric_ids = 0;
91 int msgs2stderr = 2; /* Default: send errors to stderr for local & remote-shell transfers */
92 int allow_8bit_chars = 0;
93 int force_delete = 0;
94 int force_change = 0;
95 int io_timeout = 0;
96 int prune_empty_dirs = 0;
97 int use_qsort = 0;
98 char *files_from = NULL;
99 int filesfrom_fd = -1;
100 char *filesfrom_host = NULL;
101 int eol_nulls = 0;
102 int protect_args = -1;
103 int human_readable = 1;
104 int recurse = 0;
105 int mkpath_dest_arg = 0;
106 int allow_inc_recurse = 1;
107 int xfer_dirs = -1;
108 int am_daemon = 0;
109 int connect_timeout = 0;
110 int keep_partial = 0;
111 int safe_symlinks = 0;
112 int copy_unsafe_links = 0;
113 int munge_symlinks = 0;
114 int size_only = 0;
115 int daemon_bwlimit = 0;
116 int bwlimit = 0;
117 int fuzzy_basis = 0;
118 size_t bwlimit_writemax = 0;
119 int ignore_existing = 0;
120 int ignore_non_existing = 0;
121 int need_messages_from_generator = 0;
122 int max_delete = INT_MIN;
123 OFF_T max_size = -1;
124 OFF_T min_size = -1;
125 int ignore_errors = 0;
126 int modify_window = 0;
127 int blocking_io = -1;
128 int checksum_seed = 0;
129 int inplace = 0;
130 int delay_updates = 0;
131 int32 block_size = 0;
132 time_t stop_at_utime = 0;
133 char *skip_compress = NULL;
134 char *copy_as = NULL;
135 item_list dparam_list = EMPTY_ITEM_LIST;
136
137 /** Network address family. **/
138 int default_af_hint
139 #ifdef INET6
140 = 0; /* Any protocol */
141 #else
142 = AF_INET; /* Must use IPv4 */
143 # ifdef AF_INET6
144 # undef AF_INET6
145 # endif
146 # define AF_INET6 AF_INET /* make -6 option a no-op */
147 #endif
148
149 /** Do not go into the background when run as --daemon. Good
150 * for debugging and required for running as a service on W32,
151 * or under Unix process-monitors. **/
152 int no_detach
153 #if defined _WIN32 || defined __WIN32__
154 = 1;
155 #else
156 = 0;
157 #endif
158
159 int write_batch = 0;
160 int read_batch = 0;
161 int backup_dir_len = 0;
162 int backup_suffix_len;
163 unsigned int backup_dir_remainder;
164
165 char *backup_suffix = NULL;
166 char *tmpdir = NULL;
167 char *partial_dir = NULL;
168 char *basis_dir[MAX_BASIS_DIRS+1];
169 char *config_file = NULL;
170 char *shell_cmd = NULL;
171 char *logfile_name = NULL;
172 char *logfile_format = NULL;
173 char *stdout_format = NULL;
174 char *password_file = NULL;
175 char *early_input_file = NULL;
176 char *rsync_path = RSYNC_PATH;
177 char *backup_dir = NULL;
178 char backup_dir_buf[MAXPATHLEN];
179 char *sockopts = NULL;
180 char *usermap = NULL;
181 char *groupmap = NULL;
182 int rsync_port = 0;
183 int alt_dest_type = 0;
184 int basis_dir_cnt = 0;
185
186 #define DEFAULT_MAX_ALLOC (1024L * 1024 * 1024)
187 size_t max_alloc = DEFAULT_MAX_ALLOC;
188 char *max_alloc_arg;
189
190 static int version_opt_cnt = 0;
191 static int remote_option_alloc = 0;
192 int remote_option_cnt = 0;
193 const char **remote_options = NULL;
194 const char *checksum_choice = NULL;
195 const char *compress_choice = NULL;
196
197 int quiet = 0;
198 int output_motd = 1;
199 int log_before_transfer = 0;
200 int stdout_format_has_i = 0;
201 int stdout_format_has_o_or_i = 0;
202 int logfile_format_has_i = 0;
203 int logfile_format_has_o_or_i = 0;
204 int always_checksum = 0;
205 int list_only = 0;
206
207 #define MAX_BATCH_NAME_LEN 256 /* Must be less than MAXPATHLEN-13 */
208 char *batch_name = NULL;
209
210 int need_unsorted_flist = 0;
211 char *iconv_opt =
212 #ifdef ICONV_OPTION
213 ICONV_OPTION;
214 #else
215 NULL;
216 #endif
217
218 struct chmod_mode_struct *chmod_modes = NULL;
219
220 static const char *debug_verbosity[] = {
221 /*0*/ NULL,
222 /*1*/ NULL,
223 /*2*/ "BIND,CMD,CONNECT,DEL,DELTASUM,DUP,FILTER,FLIST,ICONV",
224 /*3*/ "ACL,BACKUP,CONNECT2,DELTASUM2,DEL2,EXIT,FILTER2,FLIST2,FUZZY,GENR,OWN,RECV,SEND,TIME",
225 /*4*/ "CMD2,DELTASUM3,DEL3,EXIT2,FLIST3,ICONV2,OWN2,PROTO,TIME2",
226 /*5*/ "CHDIR,DELTASUM4,FLIST4,FUZZY2,HASH,HLINK",
227 };
228
229 #define MAX_VERBOSITY ((int)(sizeof debug_verbosity / sizeof debug_verbosity[0]) - 1)
230
231 static const char *info_verbosity[1+MAX_VERBOSITY] = {
232 /*0*/ NULL,
233 /*1*/ "COPY,DEL,FLIST,MISC,NAME,STATS,SYMSAFE",
234 /*2*/ "BACKUP,MISC2,MOUNT,NAME2,REMOVE,SKIP",
235 };
236
237 #define MAX_OUT_LEVEL 4 /* The largest N allowed for any flagN word. */
238
239 short info_levels[COUNT_INFO], debug_levels[COUNT_DEBUG];
240
241 #define DEFAULT_PRIORITY 0 /* Default/implied/--verbose set values. */
242 #define HELP_PRIORITY 1 /* The help output uses this level. */
243 #define USER_PRIORITY 2 /* User-specified via --info or --debug */
244 #define LIMIT_PRIORITY 3 /* Overriding priority when limiting values. */
245
246 #define W_CLI (1<<0) /* client side */
247 #define W_SRV (1<<1) /* server side */
248 #define W_SND (1<<2) /* sending side */
249 #define W_REC (1<<3) /* receiving side */
250
251 struct output_struct {
252 char *name; /* The name of the info/debug flag. */
253 char *help; /* The description of the info/debug flag. */
254 uchar namelen; /* The length of the name string. */
255 uchar flag; /* The flag's value, for consistency check. */
256 uchar where; /* Bits indicating where the flag is used. */
257 uchar priority; /* See *_PRIORITY defines. */
258 };
259
260 #define INFO_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, INFO_##flag, where, 0 }
261
262 static struct output_struct info_words[COUNT_INFO+1] = {
263 INFO_WORD(BACKUP, W_REC, "Mention files backed up"),
264 INFO_WORD(COPY, W_REC, "Mention files copied locally on the receiving side"),
265 INFO_WORD(DEL, W_REC, "Mention deletions on the receiving side"),
266 INFO_WORD(FLIST, W_CLI, "Mention file-list receiving/sending (levels 1-2)"),
267 INFO_WORD(MISC, W_SND|W_REC, "Mention miscellaneous information (levels 1-2)"),
268 INFO_WORD(MOUNT, W_SND|W_REC, "Mention mounts that were found or skipped"),
269 INFO_WORD(NAME, W_SND|W_REC, "Mention 1) updated file/dir names, 2) unchanged names"),
270 INFO_WORD(PROGRESS, W_CLI, "Mention 1) per-file progress or 2) total transfer progress"),
271 INFO_WORD(REMOVE, W_SND, "Mention files removed on the sending side"),
272 INFO_WORD(SKIP, W_REC, "Mention files that are skipped due to options used"),
273 INFO_WORD(STATS, W_CLI|W_SRV, "Mention statistics at end of run (levels 1-3)"),
274 INFO_WORD(SYMSAFE, W_SND|W_REC, "Mention symlinks that are unsafe"),
275 { NULL, "--info", 0, 0, 0, 0 }
276 };
277
278 #define DEBUG_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, DEBUG_##flag, where, 0 }
279
280 static struct output_struct debug_words[COUNT_DEBUG+1] = {
281 DEBUG_WORD(ACL, W_SND|W_REC, "Debug extra ACL info"),
282 DEBUG_WORD(BACKUP, W_REC, "Debug backup actions (levels 1-2)"),
283 DEBUG_WORD(BIND, W_CLI, "Debug socket bind actions"),
284 DEBUG_WORD(CHDIR, W_CLI|W_SRV, "Debug when the current directory changes"),
285 DEBUG_WORD(CONNECT, W_CLI, "Debug connection events (levels 1-2)"),
286 DEBUG_WORD(CMD, W_CLI, "Debug commands+options that are issued (levels 1-2)"),
287 DEBUG_WORD(DEL, W_REC, "Debug delete actions (levels 1-3)"),
288 DEBUG_WORD(DELTASUM, W_SND|W_REC, "Debug delta-transfer checksumming (levels 1-4)"),
289 DEBUG_WORD(DUP, W_REC, "Debug weeding of duplicate names"),
290 DEBUG_WORD(EXIT, W_CLI|W_SRV, "Debug exit events (levels 1-3)"),
291 DEBUG_WORD(FILTER, W_SND|W_REC, "Debug filter actions (levels 1-2)"),
292 DEBUG_WORD(FLIST, W_SND|W_REC, "Debug file-list operations (levels 1-4)"),
293 DEBUG_WORD(FUZZY, W_REC, "Debug fuzzy scoring (levels 1-2)"),
294 DEBUG_WORD(GENR, W_REC, "Debug generator functions"),
295 DEBUG_WORD(HASH, W_SND|W_REC, "Debug hashtable code"),
296 DEBUG_WORD(HLINK, W_SND|W_REC, "Debug hard-link actions (levels 1-3)"),
297 DEBUG_WORD(ICONV, W_CLI|W_SRV, "Debug iconv character conversions (levels 1-2)"),
298 DEBUG_WORD(IO, W_CLI|W_SRV, "Debug I/O routines (levels 1-4)"),
299 DEBUG_WORD(NSTR, W_CLI|W_SRV, "Debug negotiation strings"),
300 DEBUG_WORD(OWN, W_REC, "Debug ownership changes in users & groups (levels 1-2)"),
301 DEBUG_WORD(PROTO, W_CLI|W_SRV, "Debug protocol information"),
302 DEBUG_WORD(RECV, W_REC, "Debug receiver functions"),
303 DEBUG_WORD(SEND, W_SND, "Debug sender functions"),
304 DEBUG_WORD(TIME, W_REC, "Debug setting of modified times (levels 1-2)"),
305 { NULL, "--debug", 0, 0, 0, 0 }
306 };
307
308 static int verbose = 0;
309 static int do_stats = 0;
310 static int do_progress = 0;
311 static int daemon_opt; /* sets am_daemon after option error-reporting */
312 static int omit_dir_times = 0;
313 static int omit_link_times = 0;
314 static int F_option_cnt = 0;
315 static int modify_window_set;
316 static int itemize_changes = 0;
317 static int refused_delete, refused_archive_part, refused_compress;
318 static int refused_partial, refused_progress, refused_delete_before;
319 static int refused_delete_during;
320 static int refused_inplace, refused_no_iconv;
321 static BOOL usermap_via_chown, groupmap_via_chown;
322 static char *outbuf_mode;
323 static char *bwlimit_arg, *max_size_arg, *min_size_arg;
324 static char tmp_partialdir[] = ".~tmp~";
325
326 /** Local address to bind. As a character string because it's
327 * interpreted by the IPv6 layer: should be a numeric IP4 or IP6
328 * address, or a hostname. **/
329 char *bind_address;
330
331 static void output_item_help(struct output_struct *words);
332
333 /* This constructs a string that represents all the options set for either
334 * the --info or --debug setting, skipping any implied options (by -v, etc.).
335 * This is used both when conveying the user's options to the server, and
336 * when the help output wants to tell the user what options are implied. */
make_output_option(struct output_struct * words,short * levels,uchar where)337 static char *make_output_option(struct output_struct *words, short *levels, uchar where)
338 {
339 char *str = words == info_words ? "--info=" : "--debug=";
340 int j, counts[MAX_OUT_LEVEL+1], pos, skipped = 0, len = 0, max = 0, lev = 0;
341 int word_count = words == info_words ? COUNT_INFO : COUNT_DEBUG;
342 char *buf;
343
344 memset(counts, 0, sizeof counts);
345
346 for (j = 0; words[j].name; j++) {
347 if (words[j].flag != j) {
348 rprintf(FERROR, "rsync: internal error on %s%s: %d != %d\n",
349 words == info_words ? "INFO_" : "DEBUG_",
350 words[j].name, words[j].flag, j);
351 exit_cleanup(RERR_UNSUPPORTED);
352 }
353 if (!(words[j].where & where))
354 continue;
355 if (words[j].priority == DEFAULT_PRIORITY) {
356 /* Implied items don't need to be mentioned. */
357 skipped++;
358 continue;
359 }
360 len += len ? 1 : strlen(str);
361 len += strlen(words[j].name);
362 len += levels[j] == 1 ? 0 : 1;
363
364 if (words[j].priority == HELP_PRIORITY)
365 continue; /* no abbreviating for help */
366
367 assert(levels[j] <= MAX_OUT_LEVEL);
368 if (++counts[levels[j]] > max) {
369 /* Determine which level has the most items. */
370 lev = levels[j];
371 max = counts[lev];
372 }
373 }
374
375 /* Sanity check the COUNT_* define against the length of the table. */
376 if (j != word_count) {
377 rprintf(FERROR, "rsync: internal error: %s is wrong! (%d != %d)\n",
378 words == info_words ? "COUNT_INFO" : "COUNT_DEBUG",
379 j, word_count);
380 exit_cleanup(RERR_UNSUPPORTED);
381 }
382
383 if (!len)
384 return NULL;
385
386 len++;
387 buf = new_array(char, len);
388 pos = 0;
389
390 if (skipped || max < 5)
391 lev = -1;
392 else {
393 if (lev == 0)
394 pos += snprintf(buf, len, "%sNONE", str);
395 else if (lev == 1)
396 pos += snprintf(buf, len, "%sALL", str);
397 else
398 pos += snprintf(buf, len, "%sALL%d", str, lev);
399 }
400
401 for (j = 0; words[j].name && pos < len; j++) {
402 if (words[j].priority == DEFAULT_PRIORITY || levels[j] == lev || !(words[j].where & where))
403 continue;
404 if (pos)
405 buf[pos++] = ',';
406 else
407 pos += strlcpy(buf+pos, str, len-pos);
408 if (pos < len)
409 pos += strlcpy(buf+pos, words[j].name, len-pos);
410 /* Level 1 is implied by the name alone. */
411 if (levels[j] != 1 && pos < len)
412 buf[pos++] = '0' + levels[j];
413 }
414
415 buf[pos] = '\0';
416
417 return buf;
418 }
419
parse_output_words(struct output_struct * words,short * levels,const char * str,uchar priority)420 static void parse_output_words(struct output_struct *words, short *levels, const char *str, uchar priority)
421 {
422 const char *s;
423 int j, len, lev;
424
425 for ( ; str; str = s) {
426 if ((s = strchr(str, ',')) != NULL)
427 len = s++ - str;
428 else
429 len = strlen(str);
430 if (!len)
431 continue;
432 if (!isDigit(str)) {
433 while (len && isDigit(str+len-1))
434 len--;
435 }
436 lev = isDigit(str+len) ? atoi(str+len) : 1;
437 if (lev > MAX_OUT_LEVEL)
438 lev = MAX_OUT_LEVEL;
439 if (len == 4 && strncasecmp(str, "help", 4) == 0) {
440 output_item_help(words);
441 exit_cleanup(0);
442 }
443 if (len == 4 && strncasecmp(str, "none", 4) == 0)
444 len = lev = 0;
445 else if (len == 3 && strncasecmp(str, "all", 3) == 0)
446 len = 0;
447 for (j = 0; words[j].name; j++) {
448 if (!len
449 || (len == words[j].namelen && strncasecmp(str, words[j].name, len) == 0)) {
450 if (priority >= words[j].priority) {
451 words[j].priority = priority;
452 levels[j] = lev;
453 }
454 if (len)
455 break;
456 }
457 }
458 if (len && !words[j].name && !am_server) {
459 rprintf(FERROR, "Unknown %s item: \"%.*s\"\n",
460 words[j].help, len, str);
461 exit_cleanup(RERR_SYNTAX);
462 }
463 }
464 }
465
466 /* Tell the user what all the info or debug flags mean. */
output_item_help(struct output_struct * words)467 static void output_item_help(struct output_struct *words)
468 {
469 short *levels = words == info_words ? info_levels : debug_levels;
470 const char **verbosity = words == info_words ? info_verbosity : debug_verbosity;
471 char buf[128], *opt, *fmt = "%-10s %s\n";
472 int j;
473
474 reset_output_levels();
475
476 rprintf(FINFO, "Use OPT or OPT1 for level 1 output, OPT2 for level 2, etc.; OPT0 silences.\n");
477 rprintf(FINFO, "\n");
478 for (j = 0; words[j].name; j++)
479 rprintf(FINFO, fmt, words[j].name, words[j].help);
480 rprintf(FINFO, "\n");
481
482 snprintf(buf, sizeof buf, "Set all %s options (e.g. all%d)",
483 words[j].help, MAX_OUT_LEVEL);
484 rprintf(FINFO, fmt, "ALL", buf);
485
486 snprintf(buf, sizeof buf, "Silence all %s options (same as all0)",
487 words[j].help);
488 rprintf(FINFO, fmt, "NONE", buf);
489
490 rprintf(FINFO, fmt, "HELP", "Output this help message");
491 rprintf(FINFO, "\n");
492 rprintf(FINFO, "Options added for each increase in verbose level:\n");
493
494 for (j = 1; j <= MAX_VERBOSITY; j++) {
495 parse_output_words(words, levels, verbosity[j], HELP_PRIORITY);
496 opt = make_output_option(words, levels, W_CLI|W_SRV|W_SND|W_REC);
497 if (opt) {
498 rprintf(FINFO, "%d) %s\n", j, strchr(opt, '=')+1);
499 free(opt);
500 }
501 reset_output_levels();
502 }
503 }
504
505 /* The --verbose option now sets info+debug flags. */
set_output_verbosity(int level,uchar priority)506 static void set_output_verbosity(int level, uchar priority)
507 {
508 int j;
509
510 if (level > MAX_VERBOSITY)
511 level = MAX_VERBOSITY;
512
513 for (j = 1; j <= level; j++) {
514 parse_output_words(info_words, info_levels, info_verbosity[j], priority);
515 parse_output_words(debug_words, debug_levels, debug_verbosity[j], priority);
516 }
517 }
518
519 /* Limit the info+debug flag levels given a verbose-option level limit. */
limit_output_verbosity(int level)520 void limit_output_verbosity(int level)
521 {
522 short info_limits[COUNT_INFO], debug_limits[COUNT_DEBUG];
523 int j;
524
525 if (level > MAX_VERBOSITY)
526 return;
527
528 memset(info_limits, 0, sizeof info_limits);
529 memset(debug_limits, 0, sizeof debug_limits);
530
531 /* Compute the level limits in the above arrays. */
532 for (j = 1; j <= level; j++) {
533 parse_output_words(info_words, info_limits, info_verbosity[j], LIMIT_PRIORITY);
534 parse_output_words(debug_words, debug_limits, debug_verbosity[j], LIMIT_PRIORITY);
535 }
536
537 for (j = 0; j < COUNT_INFO; j++) {
538 if (info_levels[j] > info_limits[j])
539 info_levels[j] = info_limits[j];
540 }
541
542 for (j = 0; j < COUNT_DEBUG; j++) {
543 if (debug_levels[j] > debug_limits[j])
544 debug_levels[j] = debug_limits[j];
545 }
546 }
547
reset_output_levels(void)548 void reset_output_levels(void)
549 {
550 int j;
551
552 memset(info_levels, 0, sizeof info_levels);
553 memset(debug_levels, 0, sizeof debug_levels);
554
555 for (j = 0; j < COUNT_INFO; j++)
556 info_words[j].priority = DEFAULT_PRIORITY;
557
558 for (j = 0; j < COUNT_DEBUG; j++)
559 debug_words[j].priority = DEFAULT_PRIORITY;
560 }
561
negate_output_levels(void)562 void negate_output_levels(void)
563 {
564 int j;
565
566 for (j = 0; j < COUNT_INFO; j++)
567 info_levels[j] *= -1;
568
569 for (j = 0; j < COUNT_DEBUG; j++)
570 debug_levels[j] *= -1;
571 }
572
573 enum {OPT_SERVER = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
574 OPT_FILTER, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST, OPT_HELP,
575 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW, OPT_MIN_SIZE, OPT_CHMOD,
576 OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_ONLY_WRITE_BATCH, OPT_MAX_SIZE,
577 OPT_NO_D, OPT_APPEND, OPT_NO_ICONV, OPT_INFO, OPT_DEBUG, OPT_BLOCK_SIZE,
578 OPT_USERMAP, OPT_GROUPMAP, OPT_CHOWN, OPT_BWLIMIT, OPT_STDERR,
579 OPT_OLD_COMPRESS, OPT_NEW_COMPRESS, OPT_NO_COMPRESS,
580 OPT_STOP_AFTER, OPT_STOP_AT,
581 OPT_REFUSED_BASE = 9000};
582
583 static struct poptOption long_options[] = {
584 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
585 {"help", 0, POPT_ARG_NONE, 0, OPT_HELP, 0, 0 },
586 {"version", 'V', POPT_ARG_NONE, 0, 'V', 0, 0},
587 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
588 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
589 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
590 {"info", 0, POPT_ARG_STRING, 0, OPT_INFO, 0, 0 },
591 {"debug", 0, POPT_ARG_STRING, 0, OPT_DEBUG, 0, 0 },
592 {"stderr", 0, POPT_ARG_STRING, 0, OPT_STDERR, 0, 0 },
593 {"msgs2stderr", 0, POPT_ARG_VAL, &msgs2stderr, 1, 0, 0 },
594 {"no-msgs2stderr", 0, POPT_ARG_VAL, &msgs2stderr, 0, 0, 0 },
595 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
596 {"motd", 0, POPT_ARG_VAL, &output_motd, 1, 0, 0 },
597 {"no-motd", 0, POPT_ARG_VAL, &output_motd, 0, 0, 0 },
598 {"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
599 {"human-readable", 'h', POPT_ARG_NONE, 0, 'h', 0, 0},
600 {"no-human-readable",0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
601 {"no-h", 0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
602 {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
603 {"archive", 'a', POPT_ARG_NONE, 0, 'a', 0, 0 },
604 {"recursive", 'r', POPT_ARG_VAL, &recurse, 2, 0, 0 },
605 {"no-recursive", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
606 {"no-r", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
607 {"inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
608 {"no-inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
609 {"i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
610 {"no-i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
611 {"dirs", 'd', POPT_ARG_VAL, &xfer_dirs, 2, 0, 0 },
612 {"no-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
613 {"no-d", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
614 {"old-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
615 {"old-d", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
616 {"perms", 'p', POPT_ARG_VAL, &preserve_perms, 1, 0, 0 },
617 {"no-perms", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
618 {"no-p", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
619 {"fileflags", 0, POPT_ARG_VAL, &preserve_fileflags, 1, 0, 0 },
620 {"no-fileflags", 0, POPT_ARG_VAL, &preserve_fileflags, 0, 0, 0 },
621 {"executability", 'E', POPT_ARG_NONE, &preserve_executability, 0, 0, 0 },
622 {"acls", 'A', POPT_ARG_NONE, 0, 'A', 0, 0 },
623 {"no-acls", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
624 {"no-A", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
625 {"xattrs", 'X', POPT_ARG_NONE, 0, 'X', 0, 0 },
626 {"no-xattrs", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
627 {"no-X", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
628 {"times", 't', POPT_ARG_VAL, &preserve_times, 1, 0, 0 },
629 {"no-times", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 },
630 {"no-t", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 },
631 {"atimes", 'U', POPT_ARG_NONE, 0, 'U', 0, 0 },
632 {"no-atimes", 0, POPT_ARG_VAL, &preserve_atimes, 0, 0, 0 },
633 {"no-U", 0, POPT_ARG_VAL, &preserve_atimes, 0, 0, 0 },
634 {"open-noatime", 0, POPT_ARG_VAL, &open_noatime, 1, 0, 0 },
635 {"no-open-noatime", 0, POPT_ARG_VAL, &open_noatime, 0, 0, 0 },
636 {"crtimes", 'N', POPT_ARG_VAL, &preserve_crtimes, 1, 0, 0 },
637 {"no-crtimes", 0, POPT_ARG_VAL, &preserve_crtimes, 0, 0, 0 },
638 {"no-N", 0, POPT_ARG_VAL, &preserve_crtimes, 0, 0, 0 },
639 {"omit-dir-times", 'O', POPT_ARG_VAL, &omit_dir_times, 1, 0, 0 },
640 {"no-omit-dir-times",0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
641 {"no-O", 0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
642 {"omit-link-times", 'J', POPT_ARG_VAL, &omit_link_times, 1, 0, 0 },
643 {"no-omit-link-times",0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
644 {"no-J", 0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
645 {"modify-window", '@', POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
646 {"super", 0, POPT_ARG_VAL, &am_root, 2, 0, 0 },
647 {"no-super", 0, POPT_ARG_VAL, &am_root, 0, 0, 0 },
648 {"fake-super", 0, POPT_ARG_VAL, &am_root, -1, 0, 0 },
649 {"owner", 'o', POPT_ARG_VAL, &preserve_uid, 1, 0, 0 },
650 {"no-owner", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
651 {"no-o", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
652 {"group", 'g', POPT_ARG_VAL, &preserve_gid, 1, 0, 0 },
653 {"no-group", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
654 {"no-g", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
655 {0, 'D', POPT_ARG_NONE, 0, 'D', 0, 0 },
656 {"no-D", 0, POPT_ARG_NONE, 0, OPT_NO_D, 0, 0 },
657 {"devices", 0, POPT_ARG_VAL, &preserve_devices, 1, 0, 0 },
658 {"no-devices", 0, POPT_ARG_VAL, &preserve_devices, 0, 0, 0 },
659 {"write-devices", 0, POPT_ARG_VAL, &write_devices, 1, 0, 0 },
660 {"no-write-devices", 0, POPT_ARG_VAL, &write_devices, 0, 0, 0 },
661 {"specials", 0, POPT_ARG_VAL, &preserve_specials, 1, 0, 0 },
662 {"no-specials", 0, POPT_ARG_VAL, &preserve_specials, 0, 0, 0 },
663 {"links", 'l', POPT_ARG_VAL, &preserve_links, 1, 0, 0 },
664 {"no-links", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
665 {"no-l", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
666 {"copy-links", 'L', POPT_ARG_NONE, ©_links, 0, 0, 0 },
667 {"copy-unsafe-links",0, POPT_ARG_NONE, ©_unsafe_links, 0, 0, 0 },
668 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
669 {"munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 1, 0, 0 },
670 {"no-munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 0, 0, 0 },
671 {"copy-dirlinks", 'k', POPT_ARG_NONE, ©_dirlinks, 0, 0, 0 },
672 {"keep-dirlinks", 'K', POPT_ARG_NONE, &keep_dirlinks, 0, 0, 0 },
673 {"hard-links", 'H', POPT_ARG_NONE, 0, 'H', 0, 0 },
674 {"no-hard-links", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
675 {"no-H", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
676 {"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 },
677 {"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
678 {"no-R", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
679 {"implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
680 {"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
681 {"i-d", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
682 {"no-i-d", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
683 {"chmod", 0, POPT_ARG_STRING, 0, OPT_CHMOD, 0, 0 },
684 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 },
685 {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 },
686 {"one-file-system", 'x', POPT_ARG_NONE, 0, 'x', 0, 0 },
687 {"no-one-file-system",0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
688 {"no-x", 0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
689 {"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 },
690 {"existing", 0, POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
691 {"ignore-non-existing",0,POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
692 {"ignore-existing", 0, POPT_ARG_NONE, &ignore_existing, 0, 0, 0 },
693 {"max-size", 0, POPT_ARG_STRING, &max_size_arg, OPT_MAX_SIZE, 0, 0 },
694 {"min-size", 0, POPT_ARG_STRING, &min_size_arg, OPT_MIN_SIZE, 0, 0 },
695 {"max-alloc", 0, POPT_ARG_STRING, &max_alloc_arg, 0, 0, 0 },
696 {"sparse", 'S', POPT_ARG_VAL, &sparse_files, 1, 0, 0 },
697 {"no-sparse", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
698 {"no-S", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
699 {"preallocate", 0, POPT_ARG_NONE, &preallocate_files, 0, 0, 0},
700 {"inplace", 0, POPT_ARG_VAL, &inplace, 1, 0, 0 },
701 {"no-inplace", 0, POPT_ARG_VAL, &inplace, 0, 0, 0 },
702 {"append", 0, POPT_ARG_NONE, 0, OPT_APPEND, 0, 0 },
703 {"append-verify", 0, POPT_ARG_VAL, &append_mode, 2, 0, 0 },
704 {"no-append", 0, POPT_ARG_VAL, &append_mode, 0, 0, 0 },
705 {"del", 0, POPT_ARG_NONE, &delete_during, 0, 0, 0 },
706 {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
707 {"delete-before", 0, POPT_ARG_NONE, &delete_before, 0, 0, 0 },
708 {"delete-during", 0, POPT_ARG_VAL, &delete_during, 1, 0, 0 },
709 {"delete-delay", 0, POPT_ARG_VAL, &delete_during, 2, 0, 0 },
710 {"delete-after", 0, POPT_ARG_NONE, &delete_after, 0, 0, 0 },
711 {"delete-excluded", 0, POPT_ARG_NONE, &delete_excluded, 0, 0, 0 },
712 {"delete-missing-args",0,POPT_BIT_SET, &missing_args, 2, 0, 0 },
713 {"ignore-missing-args",0,POPT_BIT_SET, &missing_args, 1, 0, 0 },
714 {"remove-sent-files",0, POPT_ARG_VAL, &remove_source_files, 2, 0, 0 }, /* deprecated */
715 {"remove-source-files",0,POPT_ARG_VAL, &remove_source_files, 1, 0, 0 },
716 {"force", 0, POPT_ARG_VAL, &force_delete, 1, 0, 0 },
717 {"no-force", 0, POPT_ARG_VAL, &force_delete, 0, 0, 0 },
718 {"force-delete", 0, POPT_ARG_VAL, &force_delete, 1, 0, 0 },
719 {"no-force-delete", 0, POPT_ARG_VAL, &force_delete, 0, 0, 0 },
720 {"force-change", 0, POPT_ARG_VAL, &force_change, ALL_IMMUTABLE, 0, 0 },
721 {"no-force-change", 0, POPT_ARG_VAL, &force_change, 0, 0, 0 },
722 {"force-uchange", 0, POPT_ARG_VAL, &force_change, USR_IMMUTABLE, 0, 0 },
723 {"force-schange", 0, POPT_ARG_VAL, &force_change, SYS_IMMUTABLE, 0, 0 },
724 {"ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 1, 0, 0 },
725 {"no-ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 0, 0, 0 },
726 {"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
727 {0, 'F', POPT_ARG_NONE, 0, 'F', 0, 0 },
728 {"filter", 'f', POPT_ARG_STRING, 0, OPT_FILTER, 0, 0 },
729 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
730 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
731 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
732 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
733 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
734 {"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
735 {"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
736 {"no-W", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
737 {"checksum", 'c', POPT_ARG_VAL, &always_checksum, 1, 0, 0 },
738 {"no-checksum", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
739 {"no-c", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
740 {"checksum-choice", 0, POPT_ARG_STRING, &checksum_choice, 0, 0, 0 },
741 {"cc", 0, POPT_ARG_STRING, &checksum_choice, 0, 0, 0 },
742 {"block-size", 'B', POPT_ARG_STRING, 0, OPT_BLOCK_SIZE, 0, 0 },
743 {"compare-dest", 0, POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 },
744 {"copy-dest", 0, POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 },
745 {"link-dest", 0, POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 },
746 {"fuzzy", 'y', POPT_ARG_NONE, 0, 'y', 0, 0 },
747 {"no-fuzzy", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
748 {"no-y", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
749 {"compress", 'z', POPT_ARG_NONE, 0, 'z', 0, 0 },
750 {"old-compress", 0, POPT_ARG_NONE, 0, OPT_OLD_COMPRESS, 0, 0 },
751 {"new-compress", 0, POPT_ARG_NONE, 0, OPT_NEW_COMPRESS, 0, 0 },
752 {"no-compress", 0, POPT_ARG_NONE, 0, OPT_NO_COMPRESS, 0, 0 },
753 {"no-z", 0, POPT_ARG_NONE, 0, OPT_NO_COMPRESS, 0, 0 },
754 {"compress-choice", 0, POPT_ARG_STRING, &compress_choice, 0, 0, 0 },
755 {"zc", 0, POPT_ARG_STRING, &compress_choice, 0, 0, 0 },
756 {"skip-compress", 0, POPT_ARG_STRING, &skip_compress, 0, 0, 0 },
757 {"compress-level", 0, POPT_ARG_INT, &do_compression_level, 0, 0, 0 },
758 {"zl", 0, POPT_ARG_INT, &do_compression_level, 0, 0, 0 },
759 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
760 {"progress", 0, POPT_ARG_VAL, &do_progress, 1, 0, 0 },
761 {"no-progress", 0, POPT_ARG_VAL, &do_progress, 0, 0, 0 },
762 {"partial", 0, POPT_ARG_VAL, &keep_partial, 1, 0, 0 },
763 {"no-partial", 0, POPT_ARG_VAL, &keep_partial, 0, 0, 0 },
764 {"partial-dir", 0, POPT_ARG_STRING, &partial_dir, 0, 0, 0 },
765 {"delay-updates", 0, POPT_ARG_VAL, &delay_updates, 1, 0, 0 },
766 {"no-delay-updates", 0, POPT_ARG_VAL, &delay_updates, 0, 0, 0 },
767 {"prune-empty-dirs",'m', POPT_ARG_VAL, &prune_empty_dirs, 1, 0, 0 },
768 {"no-prune-empty-dirs",0,POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
769 {"no-m", 0, POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
770 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
771 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
772 {"out-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 },
773 {"log-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 }, /* DEPRECATED */
774 {"itemize-changes", 'i', POPT_ARG_NONE, 0, 'i', 0, 0 },
775 {"no-itemize-changes",0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
776 {"no-i", 0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
777 {"bwlimit", 0, POPT_ARG_STRING, &bwlimit_arg, OPT_BWLIMIT, 0, 0 },
778 {"no-bwlimit", 0, POPT_ARG_VAL, &bwlimit, 0, 0, 0 },
779 {"backup", 'b', POPT_ARG_VAL, &make_backups, 1, 0, 0 },
780 {"no-backup", 0, POPT_ARG_VAL, &make_backups, 0, 0, 0 },
781 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
782 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
783 {"list-only", 0, POPT_ARG_VAL, &list_only, 2, 0, 0 },
784 {"read-batch", 0, POPT_ARG_STRING, &batch_name, OPT_READ_BATCH, 0, 0 },
785 {"write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_WRITE_BATCH, 0, 0 },
786 {"only-write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_ONLY_WRITE_BATCH, 0, 0 },
787 {"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
788 {"from0", '0', POPT_ARG_VAL, &eol_nulls, 1, 0, 0},
789 {"no-from0", 0, POPT_ARG_VAL, &eol_nulls, 0, 0, 0},
790 {"protect-args", 's', POPT_ARG_VAL, &protect_args, 1, 0, 0},
791 {"no-protect-args", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
792 {"no-s", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
793 {"numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 1, 0, 0 },
794 {"no-numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 0, 0, 0 },
795 {"usermap", 0, POPT_ARG_STRING, 0, OPT_USERMAP, 0, 0 },
796 {"groupmap", 0, POPT_ARG_STRING, 0, OPT_GROUPMAP, 0, 0 },
797 {"chown", 0, POPT_ARG_STRING, 0, OPT_CHOWN, 0, 0 },
798 {"timeout", 0, POPT_ARG_INT, &io_timeout, 0, 0, 0 },
799 {"no-timeout", 0, POPT_ARG_VAL, &io_timeout, 0, 0, 0 },
800 {"contimeout", 0, POPT_ARG_INT, &connect_timeout, 0, 0, 0 },
801 {"no-contimeout", 0, POPT_ARG_VAL, &connect_timeout, 0, 0, 0 },
802 {"stop-after", 0, POPT_ARG_STRING, 0, OPT_STOP_AFTER, 0, 0 },
803 {"time-limit", 0, POPT_ARG_STRING, 0, OPT_STOP_AFTER, 0, 0 }, /* earlier stop-after name */
804 {"stop-at", 0, POPT_ARG_STRING, 0, OPT_STOP_AT, 0, 0 },
805 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
806 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
807 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
808 {"iconv", 0, POPT_ARG_STRING, &iconv_opt, 0, 0, 0 },
809 {"no-iconv", 0, POPT_ARG_NONE, 0, OPT_NO_ICONV, 0, 0 },
810 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
811 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
812 {"8-bit-output", '8', POPT_ARG_VAL, &allow_8bit_chars, 1, 0, 0 },
813 {"no-8-bit-output", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
814 {"no-8", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
815 {"mkpath", 0, POPT_ARG_VAL, &mkpath_dest_arg, 1, 0, 0 },
816 {"no-mkpath", 0, POPT_ARG_VAL, &mkpath_dest_arg, 0, 0, 0 },
817 {"qsort", 0, POPT_ARG_NONE, &use_qsort, 0, 0, 0 },
818 {"copy-as", 0, POPT_ARG_STRING, ©_as, 0, 0, 0 },
819 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
820 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
821 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
822 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
823 {"early-input", 0, POPT_ARG_STRING, &early_input_file, 0, 0, 0 },
824 {"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
825 {"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
826 {"outbuf", 0, POPT_ARG_STRING, &outbuf_mode, 0, 0, 0 },
827 {"remote-option", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
828 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
829 {"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 },
830 {"server", 0, POPT_ARG_NONE, 0, OPT_SERVER, 0, 0 },
831 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
832 /* All the following options switch us into daemon-mode option-parsing. */
833 {"config", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
834 {"daemon", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
835 {"dparam", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
836 {"detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
837 {"no-detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
838 {0,0,0,0, 0, 0, 0}
839 };
840
841 static struct poptOption long_daemon_options[] = {
842 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
843 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
844 {"bwlimit", 0, POPT_ARG_INT, &daemon_bwlimit, 0, 0, 0 },
845 {"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
846 {"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
847 {"dparam", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
848 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
849 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
850 {"detach", 0, POPT_ARG_VAL, &no_detach, 0, 0, 0 },
851 {"no-detach", 0, POPT_ARG_VAL, &no_detach, 1, 0, 0 },
852 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
853 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
854 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
855 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
856 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
857 {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
858 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
859 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
860 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
861 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
862 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
863 {0,0,0,0, 0, 0, 0}
864 };
865
866
867 static char err_buf[200];
868
869
870 /**
871 * Store the option error message, if any, so that we can log the
872 * connection attempt (which requires parsing the options), and then
873 * show the error later on.
874 **/
option_error(void)875 void option_error(void)
876 {
877 if (!err_buf[0]) {
878 strlcpy(err_buf, "Error parsing options: option may "
879 "be supported on client but not on server?\n",
880 sizeof err_buf);
881 }
882
883 rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
884 io_flush(MSG_FLUSH);
885 msleep(20);
886 }
887
888
parse_one_refuse_match(int negated,const char * ref,const struct poptOption * list_end)889 static void parse_one_refuse_match(int negated, const char *ref, const struct poptOption *list_end)
890 {
891 struct poptOption *op;
892 char shortName[2];
893 int is_wild = strpbrk(ref, "*?[") != NULL;
894 int found_match = 0;
895
896 shortName[1] = '\0';
897
898 if (strcmp("a", ref) == 0 || strcmp("archive", ref) == 0) {
899 ref = "[ardlptgoD]";
900 is_wild = 1;
901 }
902
903 for (op = long_options; op != list_end; op++) {
904 *shortName = op->shortName;
905 if ((op->longName && wildmatch(ref, op->longName))
906 || (*shortName && wildmatch(ref, shortName))) {
907 if (op->descrip[1] == '*')
908 op->descrip = negated ? "a*" : "r*";
909 else if (!is_wild)
910 op->descrip = negated ? "a=" : "r=";
911 found_match = 1;
912 if (!is_wild)
913 break;
914 }
915 }
916
917 if (!found_match)
918 rprintf(FLOG, "No match for refuse-options string \"%s\"\n", ref);
919 }
920
921
922 /**
923 * Tweak the option table to disable all options that the rsyncd.conf
924 * file has told us to refuse.
925 **/
set_refuse_options(void)926 static void set_refuse_options(void)
927 {
928 struct poptOption *op, *list_end = NULL;
929 char *cp, *ref = lp_refuse_options(module_id);
930 int negated;
931
932 if (!ref)
933 ref = "";
934
935 if (!am_daemon)
936 ref = "";
937
938 /* We abuse the descrip field in poptOption to make it easy to flag which options
939 * are refused (since we don't use it otherwise). Start by marking all options
940 * as "a"ccepted with a few options also marked as non-wild. */
941 for (op = long_options; ; op++) {
942 const char *longName = op->longName ? op->longName : "";
943 if (!op->longName && !op->shortName) {
944 list_end = op;
945 break;
946 }
947 if (!am_daemon
948 || op->shortName == 'e' /* Required for compatibility flags */
949 || op->shortName == '0' /* --from0 just modifies --files-from, so refuse that instead (or not) */
950 || op->shortName == 's' /* --protect-args is always OK */
951 || op->shortName == 'n' /* --dry-run is always OK */
952 || strcmp("iconv", longName) == 0
953 || strcmp("no-iconv", longName) == 0
954 || strcmp("checksum-seed", longName) == 0
955 || strcmp("write-devices", longName) == 0 /* disable wild-match (it gets refused below) */
956 || strcmp("log-format", longName) == 0 /* aka out-format (NOT log-file-format) */
957 || strcmp("sender", longName) == 0
958 || strcmp("server", longName) == 0)
959 op->descrip = "a="; /* exact-match only */
960 else
961 op->descrip = "a*"; /* wild-card-able */
962 }
963 assert(list_end != NULL);
964
965 if (am_daemon) { /* Refused by default, but can be accepted via a negated exact match. */
966 parse_one_refuse_match(0, "write-devices", list_end);
967 }
968
969 while (1) {
970 while (*ref == ' ') ref++;
971 if (!*ref)
972 break;
973 if ((cp = strchr(ref, ' ')) != NULL)
974 *cp = '\0';
975 negated = *ref == '!';
976 if (negated && ref[1])
977 ref++;
978 parse_one_refuse_match(negated, ref, list_end);
979 if (!cp)
980 break;
981 *cp = ' ';
982 ref = cp + 1;
983 }
984
985 if (am_daemon) {
986 #ifdef ICONV_OPTION
987 if (!*lp_charset(module_id))
988 parse_one_refuse_match(0, "iconv", list_end);
989 #endif
990 parse_one_refuse_match(0, "log-file*", list_end);
991 }
992
993 #ifndef SUPPORT_ATIMES
994 parse_one_refuse_match(0, "atimes", list_end);
995 #endif
996 #ifndef SUPPORT_HARD_LINKS
997 parse_one_refuse_match(0, "link-dest", list_end);
998 #endif
999 #ifndef HAVE_MKTIME
1000 parse_one_refuse_match(0, "stop-at", list_end);
1001 #endif
1002 #ifndef ICONV_OPTION
1003 parse_one_refuse_match(0, "iconv", list_end);
1004 #endif
1005 #ifndef HAVE_SETVBUF
1006 parse_one_refuse_match(0, "outbuf", list_end);
1007 #endif
1008 #ifndef SUPPORT_CRTIMES
1009 parse_one_refuse_match(0, "crtimes", list_end);
1010 #endif
1011 #ifndef SUPPORT_FILEFLAGS
1012 parse_one_refuse_match(0, "fileflags", list_end);
1013 #endif
1014 #ifndef SUPPORT_FORCE_CHANGE
1015 parse_one_refuse_match(0, "force-change", list_end);
1016 parse_one_refuse_match(0, "force-uchange", list_end);
1017 parse_one_refuse_match(0, "force-schange", list_end);
1018 #endif
1019
1020 /* Now we use the descrip values to actually mark the options for refusal. */
1021 for (op = long_options; op != list_end; op++) {
1022 int refused = op->descrip[0] == 'r';
1023 op->descrip = NULL;
1024 if (!refused)
1025 continue;
1026 if (op->argInfo == POPT_ARG_VAL)
1027 op->argInfo = POPT_ARG_NONE;
1028 op->val = (op - long_options) + OPT_REFUSED_BASE;
1029 /* The following flags are set to let us easily check an implied option later in the code. */
1030 switch (op->shortName) {
1031 case 'r': case 'd': case 'l': case 'p':
1032 case 't': case 'g': case 'o': case 'D':
1033 refused_archive_part = op->val;
1034 break;
1035 case 'z':
1036 refused_compress = op->val;
1037 break;
1038 case '\0':
1039 if (strcmp("delete", op->longName) == 0)
1040 refused_delete = op->val;
1041 else if (strcmp("delete-before", op->longName) == 0)
1042 refused_delete_before = op->val;
1043 else if (strcmp("delete-during", op->longName) == 0)
1044 refused_delete_during = op->val;
1045 else if (strcmp("partial", op->longName) == 0)
1046 refused_partial = op->val;
1047 else if (strcmp("progress", op->longName) == 0)
1048 refused_progress = op->val;
1049 else if (strcmp("inplace", op->longName) == 0)
1050 refused_inplace = op->val;
1051 else if (strcmp("no-iconv", op->longName) == 0)
1052 refused_no_iconv = op->val;
1053 break;
1054 }
1055 }
1056 }
1057
1058
count_args(const char ** argv)1059 static int count_args(const char **argv)
1060 {
1061 int i = 0;
1062
1063 if (argv) {
1064 while (argv[i] != NULL)
1065 i++;
1066 }
1067
1068 return i;
1069 }
1070
1071 /* If the size_arg is an invalid string or the value is < min_value, an error
1072 * is put into err_buf & the return is -1. Note that this parser does NOT
1073 * support negative numbers, so a min_value < 0 doesn't make any sense. */
parse_size_arg(const char * size_arg,char def_suf,const char * opt_name,ssize_t min_value,ssize_t max_value,BOOL unlimited_0)1074 static ssize_t parse_size_arg(const char *size_arg, char def_suf, const char *opt_name,
1075 ssize_t min_value, ssize_t max_value, BOOL unlimited_0)
1076 {
1077 int reps, mult, len;
1078 const char *arg, *err = "invalid", *min_max = NULL;
1079 ssize_t limit = -1, size = 1;
1080
1081 for (arg = size_arg; isDigit(arg); arg++) {}
1082 if (*arg == '.' || *arg == get_decimal_point()) /* backward compatibility: always allow '.' */
1083 for (arg++; isDigit(arg); arg++) {}
1084 switch (*arg && *arg != '+' && *arg != '-' ? *arg++ : def_suf) {
1085 case 'b': case 'B':
1086 reps = 0;
1087 break;
1088 case 'k': case 'K':
1089 reps = 1;
1090 break;
1091 case 'm': case 'M':
1092 reps = 2;
1093 break;
1094 case 'g': case 'G':
1095 reps = 3;
1096 break;
1097 case 't': case 'T':
1098 reps = 4;
1099 break;
1100 case 'p': case 'P':
1101 reps = 5;
1102 break;
1103 default:
1104 goto failure;
1105 }
1106 if (*arg == 'b' || *arg == 'B')
1107 mult = 1000, arg++;
1108 else if (!*arg || *arg == '+' || *arg == '-')
1109 mult = 1024;
1110 else if (strncasecmp(arg, "ib", 2) == 0)
1111 mult = 1024, arg += 2;
1112 else
1113 goto failure;
1114 while (reps--)
1115 size *= mult;
1116 size *= atof(size_arg);
1117 if ((*arg == '+' || *arg == '-') && arg[1] == '1' && arg != size_arg)
1118 size += atoi(arg), arg += 2;
1119 if (*arg)
1120 goto failure;
1121 if (size < 0 || (max_value >= 0 && size > max_value)) {
1122 err = "too large";
1123 min_max = "max";
1124 limit = max_value;
1125 goto failure;
1126 }
1127 if (size < min_value && (!unlimited_0 || size != 0)) {
1128 err = "too small";
1129 min_max = "min";
1130 limit = min_value;
1131 goto failure;
1132 }
1133 return size;
1134
1135 failure:
1136 len = snprintf(err_buf, sizeof err_buf - 1, "--%s=%s is %s", opt_name, size_arg, err);
1137 if (min_max && limit >= 0 && len < (int)sizeof err_buf - 10) {
1138 len += snprintf(err_buf + len, sizeof err_buf - len - 1, " (%s: %s%s)",
1139 min_max, do_big_num(limit, 3, NULL),
1140 unlimited_0 && min_max[1] == 'i' ? " or 0 for unlimited" : "");
1141 }
1142 err_buf[len] = '\n';
1143 err_buf[len+1] = '\0';
1144 return -1;
1145 }
1146
1147 #ifdef HAVE_MKTIME
1148 /* Allow the user to specify a time in the format yyyy-mm-ddThh:mm while
1149 * also allowing abbreviated data. For instance, if the time is omitted,
1150 * it defaults to midnight. If the date is omitted, it defaults to the
1151 * next possible date in the future with the specified time. Even the
1152 * year or year-month can be omitted, again defaulting to the next date
1153 * in the future that matches the specified information. A 2-digit year
1154 * is also OK, as is using '/' instead of '-'. */
parse_time(const char * arg)1155 static time_t parse_time(const char *arg)
1156 {
1157 const char *cp;
1158 time_t val, now = time(NULL);
1159 struct tm t, *today = localtime(&now);
1160 int in_date, old_mday, n;
1161
1162 memset(&t, 0, sizeof t);
1163 t.tm_year = t.tm_mon = t.tm_mday = -1;
1164 t.tm_hour = t.tm_min = t.tm_isdst = -1;
1165 cp = arg;
1166 if (*cp == 'T' || *cp == 't' || *cp == ':') {
1167 in_date = *cp == ':' ? 0 : -1;
1168 cp++;
1169 } else
1170 in_date = 1;
1171 for ( ; ; cp++) {
1172 if (!isDigit(cp))
1173 return (time_t)-1;
1174 n = 0;
1175 do {
1176 n = n * 10 + *cp++ - '0';
1177 } while (isDigit(cp));
1178 if (*cp == ':')
1179 in_date = 0;
1180 if (in_date > 0) {
1181 if (t.tm_year != -1)
1182 return (time_t)-1;
1183 t.tm_year = t.tm_mon;
1184 t.tm_mon = t.tm_mday;
1185 t.tm_mday = n;
1186 if (!*cp)
1187 break;
1188 if (*cp == 'T' || *cp == 't') {
1189 if (!cp[1])
1190 break;
1191 in_date = -1;
1192 } else if (*cp != '-' && *cp != '/')
1193 return (time_t)-1;
1194 continue;
1195 }
1196 if (t.tm_hour != -1)
1197 return (time_t)-1;
1198 t.tm_hour = t.tm_min;
1199 t.tm_min = n;
1200 if (!*cp) {
1201 if (in_date < 0)
1202 return (time_t)-1;
1203 break;
1204 }
1205 if (*cp != ':')
1206 return (time_t)-1;
1207 in_date = 0;
1208 }
1209
1210 in_date = 0;
1211 if (t.tm_year < 0) {
1212 t.tm_year = today->tm_year;
1213 in_date = 1;
1214 } else if (t.tm_year < 100) {
1215 while (t.tm_year < today->tm_year)
1216 t.tm_year += 100;
1217 } else
1218 t.tm_year -= 1900;
1219 if (t.tm_mon < 0) {
1220 t.tm_mon = today->tm_mon;
1221 in_date = 2;
1222 } else
1223 t.tm_mon--;
1224 if (t.tm_mday < 0) {
1225 t.tm_mday = today->tm_mday;
1226 in_date = 3;
1227 }
1228
1229 n = 0;
1230 if (t.tm_min < 0) {
1231 t.tm_hour = t.tm_min = 0;
1232 } else if (t.tm_hour < 0) {
1233 if (in_date != 3)
1234 return (time_t)-1;
1235 in_date = 0;
1236 t.tm_hour = today->tm_hour;
1237 n = 60*60;
1238 }
1239
1240 /* Note that mktime() might change a too-large tm_mday into the start of
1241 * the following month which we need to undo in the following code! */
1242 old_mday = t.tm_mday;
1243 if (t.tm_hour > 23 || t.tm_min > 59
1244 || t.tm_mon < 0 || t.tm_mon >= 12
1245 || t.tm_mday < 1 || t.tm_mday > 31
1246 || (val = mktime(&t)) == (time_t)-1)
1247 return (time_t)-1;
1248
1249 while (in_date && (val <= now || t.tm_mday < old_mday)) {
1250 switch (in_date) {
1251 case 3:
1252 old_mday = ++t.tm_mday;
1253 break;
1254 case 2:
1255 if (t.tm_mday < old_mday)
1256 t.tm_mday = old_mday; /* The month already got bumped forward */
1257 else if (++t.tm_mon == 12) {
1258 t.tm_mon = 0;
1259 t.tm_year++;
1260 }
1261 break;
1262 case 1:
1263 if (t.tm_mday < old_mday) {
1264 /* mon==1 mday==29 got bumped to mon==2 */
1265 if (t.tm_mon != 2 || old_mday != 29)
1266 return (time_t)-1;
1267 t.tm_mon = 1;
1268 t.tm_mday = 29;
1269 }
1270 t.tm_year++;
1271 break;
1272 }
1273 if ((val = mktime(&t)) == (time_t)-1) {
1274 /* This code shouldn't be needed, as mktime() should auto-round to the next month. */
1275 if (in_date != 3 || t.tm_mday <= 28)
1276 return (time_t)-1;
1277 t.tm_mday = old_mday = 1;
1278 in_date = 2;
1279 }
1280 }
1281 if (n) {
1282 while (val <= now)
1283 val += n;
1284 }
1285 return val;
1286 }
1287 #endif
1288
create_refuse_error(int which)1289 static void create_refuse_error(int which)
1290 {
1291 const char *msg;
1292 if (am_daemon)
1293 msg = "The server is configured to refuse";
1294 else if (am_server)
1295 msg = "The server does not support";
1296 else
1297 msg = "This rsync does not support";
1298
1299 /* The "which" value is the index + OPT_REFUSED_BASE. */
1300 struct poptOption *op = &long_options[which - OPT_REFUSED_BASE];
1301 int n = snprintf(err_buf, sizeof err_buf, "%s --%s\n", msg, op->longName) - 1;
1302 if (op->shortName)
1303 snprintf(err_buf + n, sizeof err_buf - n, " (-%c)\n", op->shortName);
1304 }
1305
1306 /* This is used to make sure that --daemon & --server cannot be aliased to
1307 * something else. These options have always disabled popt aliases for the
1308 * parsing of a daemon or server command-line, but we have to make sure that
1309 * these options cannot vanish so that the alias disabling can take effect. */
popt_unalias(poptContext con,const char * opt)1310 static void popt_unalias(poptContext con, const char *opt)
1311 {
1312 struct poptAlias unalias;
1313
1314 memset(&unalias, 0, sizeof unalias);
1315
1316 unalias.longName = opt + 2; /* point past the leading "--" */
1317 unalias.argc = 1;
1318 unalias.argv = new_array0(const char*, 2);
1319 unalias.argv[0] = strdup(opt);
1320
1321 poptAddAlias(con, unalias, 0);
1322 }
1323
alt_dest_opt(int type)1324 char *alt_dest_opt(int type)
1325 {
1326 if (!type)
1327 type = alt_dest_type;
1328
1329 switch (type) {
1330 case COMPARE_DEST:
1331 return "--compare-dest";
1332 case COPY_DEST:
1333 return "--copy-dest";
1334 case LINK_DEST:
1335 return "--link-dest";
1336 default:
1337 NOISY_DEATH("Unknown alt_dest_opt type");
1338 }
1339 }
1340
1341 /**
1342 * Process command line arguments. Called on both local and remote.
1343 *
1344 * @retval 1 if all options are OK; with globals set to appropriate
1345 * values
1346 *
1347 * @retval 0 on error, with err_buf containing an explanation
1348 **/
parse_arguments(int * argc_p,const char *** argv_p)1349 int parse_arguments(int *argc_p, const char ***argv_p)
1350 {
1351 static poptContext pc;
1352 const char *arg, **argv = *argv_p;
1353 int argc = *argc_p;
1354 int opt, want_dest_type;
1355 int orig_protect_args = protect_args;
1356
1357 if (argc == 0) {
1358 strlcpy(err_buf, "argc is zero!\n", sizeof err_buf);
1359 return 0;
1360 }
1361
1362 set_refuse_options();
1363
1364 #ifdef ICONV_OPTION
1365 if (!am_daemon && protect_args <= 0 && (arg = getenv("RSYNC_ICONV")) != NULL && *arg)
1366 iconv_opt = strdup(arg);
1367 #endif
1368
1369 /* TODO: Call poptReadDefaultConfig; handle errors. */
1370
1371 /* The context leaks in case of an error, but if there's a
1372 * problem we always exit anyhow. */
1373 if (pc)
1374 poptFreeContext(pc);
1375 pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
1376 if (!am_server) {
1377 poptReadDefaultConfig(pc, 0);
1378 popt_unalias(pc, "--daemon");
1379 popt_unalias(pc, "--server");
1380 }
1381
1382 while ((opt = poptGetNextOpt(pc)) != -1) {
1383 /* most options are handled automatically by popt;
1384 * only special cases are returned and listed here. */
1385
1386 switch (opt) {
1387 case 'V':
1388 version_opt_cnt++;
1389 break;
1390
1391 case OPT_SERVER:
1392 if (!am_server) {
1393 /* Disable popt aliases on the server side and
1394 * then start parsing the options again. */
1395 poptFreeContext(pc);
1396 pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
1397 am_server = 1;
1398 }
1399 #ifdef ICONV_OPTION
1400 iconv_opt = NULL;
1401 #endif
1402 break;
1403
1404 case OPT_SENDER:
1405 if (!am_server) {
1406 usage(FERROR);
1407 exit_cleanup(RERR_SYNTAX);
1408 }
1409 am_sender = 1;
1410 break;
1411
1412 case OPT_DAEMON:
1413 if (am_daemon) {
1414 strlcpy(err_buf,
1415 "Attempt to hack rsync thwarted!\n",
1416 sizeof err_buf);
1417 return 0;
1418 }
1419 #ifdef ICONV_OPTION
1420 iconv_opt = NULL;
1421 #endif
1422 protect_args = 0;
1423 poptFreeContext(pc);
1424 pc = poptGetContext(RSYNC_NAME, argc, argv, long_daemon_options, 0);
1425 while ((opt = poptGetNextOpt(pc)) != -1) {
1426 char **cpp;
1427 switch (opt) {
1428 case 'h':
1429 daemon_usage(FINFO);
1430 exit_cleanup(0);
1431
1432 case 'M':
1433 arg = poptGetOptArg(pc);
1434 if (!strchr(arg, '=')) {
1435 rprintf(FERROR,
1436 "--dparam value is missing an '=': %s\n",
1437 arg);
1438 goto daemon_error;
1439 }
1440 cpp = EXPAND_ITEM_LIST(&dparam_list, char *, 4);
1441 *cpp = strdup(arg);
1442 break;
1443
1444 case 'v':
1445 verbose++;
1446 break;
1447
1448 default:
1449 rprintf(FERROR,
1450 "rsync: %s: %s (in daemon mode)\n",
1451 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1452 poptStrerror(opt));
1453 goto daemon_error;
1454 }
1455 }
1456
1457 if (dparam_list.count && !set_dparams(1))
1458 exit_cleanup(RERR_SYNTAX);
1459
1460 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
1461 snprintf(err_buf, sizeof err_buf,
1462 "the --temp-dir path is WAY too long.\n");
1463 return 0;
1464 }
1465
1466 if (!daemon_opt) {
1467 rprintf(FERROR, "Daemon option(s) used without --daemon.\n");
1468 daemon_error:
1469 rprintf(FERROR, "(Type \"rsync --daemon --help\" for assistance with daemon mode.)\n");
1470 exit_cleanup(RERR_SYNTAX);
1471 }
1472
1473 *argv_p = argv = poptGetArgs(pc);
1474 *argc_p = argc = count_args(argv);
1475 am_starting_up = 0;
1476 daemon_opt = 0;
1477 am_daemon = 1;
1478 return 1;
1479
1480 case OPT_MODIFY_WINDOW:
1481 /* The value has already been set by popt, but
1482 * we need to remember that we're using a
1483 * non-default setting. */
1484 modify_window_set = 1;
1485 break;
1486
1487 case OPT_FILTER:
1488 parse_filter_str(&filter_list, poptGetOptArg(pc),
1489 rule_template(0), 0);
1490 break;
1491
1492 case OPT_EXCLUDE:
1493 parse_filter_str(&filter_list, poptGetOptArg(pc),
1494 rule_template(0), XFLG_OLD_PREFIXES);
1495 break;
1496
1497 case OPT_INCLUDE:
1498 parse_filter_str(&filter_list, poptGetOptArg(pc),
1499 rule_template(FILTRULE_INCLUDE), XFLG_OLD_PREFIXES);
1500 break;
1501
1502 case OPT_EXCLUDE_FROM:
1503 case OPT_INCLUDE_FROM:
1504 arg = poptGetOptArg(pc);
1505 if (sanitize_paths)
1506 arg = sanitize_path(NULL, arg, NULL, 0, SP_DEFAULT);
1507 if (daemon_filter_list.head) {
1508 int rej;
1509 char *cp = strdup(arg);
1510 if (!*cp)
1511 rej = 1;
1512 else {
1513 char *dir = cp + (*cp == '/' ? module_dirlen : 0);
1514 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
1515 rej = check_filter(&daemon_filter_list, FLOG, dir, 0) < 0;
1516 }
1517 free(cp);
1518 if (rej)
1519 goto options_rejected;
1520 }
1521 parse_filter_file(&filter_list, arg,
1522 rule_template(opt == OPT_INCLUDE_FROM ? FILTRULE_INCLUDE : 0),
1523 XFLG_FATAL_ERRORS | XFLG_OLD_PREFIXES);
1524 break;
1525
1526 case 'a':
1527 if (refused_archive_part) {
1528 create_refuse_error(refused_archive_part);
1529 return 0;
1530 }
1531 if (!recurse) /* preserve recurse == 2 */
1532 recurse = 1;
1533 #ifdef SUPPORT_LINKS
1534 preserve_links = 1;
1535 #endif
1536 preserve_perms = 1;
1537 preserve_times = 1;
1538 preserve_gid = 1;
1539 preserve_uid = 1;
1540 preserve_devices = 1;
1541 preserve_specials = 1;
1542 break;
1543
1544 case 'D':
1545 preserve_devices = preserve_specials = 1;
1546 break;
1547
1548 case OPT_NO_D:
1549 preserve_devices = preserve_specials = 0;
1550 break;
1551
1552 case 'h':
1553 human_readable++;
1554 break;
1555
1556 case 'H':
1557 preserve_hard_links++;
1558 break;
1559
1560 case 'i':
1561 itemize_changes++;
1562 break;
1563
1564 case 'U':
1565 if (++preserve_atimes > 1)
1566 open_noatime = 1;
1567 break;
1568
1569 case 'v':
1570 verbose++;
1571 break;
1572
1573 case 'y':
1574 fuzzy_basis++;
1575 break;
1576
1577 case 'q':
1578 quiet++;
1579 break;
1580
1581 case 'x':
1582 one_file_system++;
1583 break;
1584
1585 case 'F':
1586 switch (++F_option_cnt) {
1587 case 1:
1588 parse_filter_str(&filter_list,": /.rsync-filter",rule_template(0),0);
1589 break;
1590 case 2:
1591 parse_filter_str(&filter_list,"- .rsync-filter",rule_template(0),0);
1592 break;
1593 }
1594 break;
1595
1596 case 'P':
1597 if (refused_partial || refused_progress) {
1598 create_refuse_error(refused_partial ? refused_partial : refused_progress);
1599 return 0;
1600 }
1601 do_progress = 1;
1602 keep_partial = 1;
1603 break;
1604
1605 case 'z':
1606 do_compression++;
1607 break;
1608
1609 case OPT_OLD_COMPRESS:
1610 compress_choice = "zlib";
1611 break;
1612
1613 case OPT_NEW_COMPRESS:
1614 compress_choice = "zlibx";
1615 break;
1616
1617 case OPT_NO_COMPRESS:
1618 do_compression = 0;
1619 compress_choice = NULL;
1620 break;
1621
1622 case 'M':
1623 arg = poptGetOptArg(pc);
1624 if (*arg != '-') {
1625 snprintf(err_buf, sizeof err_buf,
1626 "Remote option must start with a dash: %s\n", arg);
1627 return 0;
1628 }
1629 if (remote_option_cnt+2 >= remote_option_alloc) {
1630 remote_option_alloc += 16;
1631 remote_options = realloc_array(remote_options,
1632 const char *, remote_option_alloc);
1633 if (!remote_option_cnt)
1634 remote_options[0] = "ARG0";
1635 }
1636 remote_options[++remote_option_cnt] = arg;
1637 remote_options[remote_option_cnt+1] = NULL;
1638 break;
1639
1640 case OPT_WRITE_BATCH:
1641 /* batch_name is already set */
1642 write_batch = 1;
1643 break;
1644
1645 case OPT_ONLY_WRITE_BATCH:
1646 /* batch_name is already set */
1647 write_batch = -1;
1648 break;
1649
1650 case OPT_READ_BATCH:
1651 /* batch_name is already set */
1652 read_batch = 1;
1653 break;
1654
1655 case OPT_NO_ICONV:
1656 #ifdef ICONV_OPTION
1657 iconv_opt = NULL;
1658 #endif
1659 break;
1660
1661 case OPT_BLOCK_SIZE: {
1662 /* We may not know the real protocol_version at this point if this is the client
1663 * option parsing, but we still want to check it so that the client can specify
1664 * a --protocol=29 option with a larger block size. */
1665 int max_blength = protocol_version < 30 ? OLD_MAX_BLOCK_SIZE : MAX_BLOCK_SIZE;
1666 ssize_t size;
1667 arg = poptGetOptArg(pc);
1668 if ((size = parse_size_arg(arg, 'b', "block-size", 0, max_blength, False)) < 0)
1669 return 0;
1670 block_size = (int32)size;
1671 break;
1672 }
1673
1674 case OPT_MAX_SIZE:
1675 if ((max_size = parse_size_arg(max_size_arg, 'b', "max-size", 0, -1, False)) < 0)
1676 return 0;
1677 max_size_arg = strdup(do_big_num(max_size, 0, NULL));
1678 break;
1679
1680 case OPT_MIN_SIZE:
1681 if ((min_size = parse_size_arg(min_size_arg, 'b', "min-size", 0, -1, False)) < 0)
1682 return 0;
1683 min_size_arg = strdup(do_big_num(min_size, 0, NULL));
1684 break;
1685
1686 case OPT_BWLIMIT: {
1687 ssize_t size = parse_size_arg(bwlimit_arg, 'K', "bwlimit", 512, -1, True);
1688 if (size < 0)
1689 return 0;
1690 bwlimit_arg = strdup(do_big_num(size, 0, NULL));
1691 bwlimit = (size + 512) / 1024;
1692 break;
1693 }
1694
1695 case OPT_APPEND:
1696 if (am_server)
1697 append_mode++;
1698 else
1699 append_mode = 1;
1700 break;
1701
1702 case OPT_LINK_DEST:
1703 want_dest_type = LINK_DEST;
1704 goto set_dest_dir;
1705
1706 case OPT_COPY_DEST:
1707 want_dest_type = COPY_DEST;
1708 goto set_dest_dir;
1709
1710 case OPT_COMPARE_DEST:
1711 want_dest_type = COMPARE_DEST;
1712
1713 set_dest_dir:
1714 if (alt_dest_type && alt_dest_type != want_dest_type) {
1715 snprintf(err_buf, sizeof err_buf,
1716 "ERROR: the %s option conflicts with the %s option\n",
1717 alt_dest_opt(want_dest_type), alt_dest_opt(0));
1718 return 0;
1719 }
1720 alt_dest_type = want_dest_type;
1721
1722 if (basis_dir_cnt >= MAX_BASIS_DIRS) {
1723 snprintf(err_buf, sizeof err_buf,
1724 "ERROR: at most %d %s args may be specified\n",
1725 MAX_BASIS_DIRS, alt_dest_opt(0));
1726 return 0;
1727 }
1728 /* We defer sanitizing this arg until we know what
1729 * our destination directory is going to be. */
1730 basis_dir[basis_dir_cnt++] = (char *)poptGetOptArg(pc);
1731 break;
1732
1733 case OPT_CHMOD:
1734 arg = poptGetOptArg(pc);
1735 if (!parse_chmod(arg, &chmod_modes)) {
1736 snprintf(err_buf, sizeof err_buf,
1737 "Invalid argument passed to --chmod (%s)\n",
1738 arg);
1739 return 0;
1740 }
1741 break;
1742
1743 case OPT_INFO:
1744 arg = poptGetOptArg(pc);
1745 parse_output_words(info_words, info_levels, arg, USER_PRIORITY);
1746 break;
1747
1748 case OPT_DEBUG:
1749 arg = poptGetOptArg(pc);
1750 parse_output_words(debug_words, debug_levels, arg, USER_PRIORITY);
1751 break;
1752
1753 case OPT_USERMAP:
1754 if (usermap) {
1755 if (usermap_via_chown) {
1756 snprintf(err_buf, sizeof err_buf,
1757 "--usermap conflicts with prior --chown.\n");
1758 return 0;
1759 }
1760 snprintf(err_buf, sizeof err_buf,
1761 "You can only specify --usermap once.\n");
1762 return 0;
1763 }
1764 usermap = (char *)poptGetOptArg(pc);
1765 usermap_via_chown = False;
1766 break;
1767
1768 case OPT_GROUPMAP:
1769 if (groupmap) {
1770 if (groupmap_via_chown) {
1771 snprintf(err_buf, sizeof err_buf,
1772 "--groupmap conflicts with prior --chown.\n");
1773 return 0;
1774 }
1775 snprintf(err_buf, sizeof err_buf,
1776 "You can only specify --groupmap once.\n");
1777 return 0;
1778 }
1779 groupmap = (char *)poptGetOptArg(pc);
1780 groupmap_via_chown = False;
1781 break;
1782
1783 case OPT_CHOWN: {
1784 const char *chown = poptGetOptArg(pc);
1785 int len;
1786 if ((arg = strchr(chown, ':')) != NULL)
1787 len = arg++ - chown;
1788 else
1789 len = strlen(chown);
1790 if (len) {
1791 if (usermap) {
1792 if (!usermap_via_chown) {
1793 snprintf(err_buf, sizeof err_buf,
1794 "--chown conflicts with prior --usermap.\n");
1795 return 0;
1796 }
1797 snprintf(err_buf, sizeof err_buf,
1798 "You can only specify a user-affecting --chown once.\n");
1799 return 0;
1800 }
1801 if (asprintf(&usermap, "*:%.*s", len, chown) < 0)
1802 out_of_memory("parse_arguments");
1803 usermap_via_chown = True;
1804 }
1805 if (arg && *arg) {
1806 if (groupmap) {
1807 if (!groupmap_via_chown) {
1808 snprintf(err_buf, sizeof err_buf,
1809 "--chown conflicts with prior --groupmap.\n");
1810 return 0;
1811 }
1812 snprintf(err_buf, sizeof err_buf,
1813 "You can only specify a group-affecting --chown once.\n");
1814 return 0;
1815 }
1816 if (asprintf(&groupmap, "*:%s", arg) < 0)
1817 out_of_memory("parse_arguments");
1818 groupmap_via_chown = True;
1819 }
1820 break;
1821 }
1822
1823 case OPT_HELP:
1824 usage(FINFO);
1825 exit_cleanup(0);
1826
1827 case 'A':
1828 #ifdef SUPPORT_ACLS
1829 preserve_acls = 1;
1830 preserve_perms = 1;
1831 break;
1832 #else
1833 /* FIXME: this should probably be ignored with a
1834 * warning and then countermeasures taken to
1835 * restrict group and other access in the presence
1836 * of any more restrictive ACLs, but this is safe
1837 * for now */
1838 snprintf(err_buf,sizeof(err_buf),
1839 "ACLs are not supported on this %s\n",
1840 am_server ? "server" : "client");
1841 return 0;
1842 #endif
1843
1844 case 'X':
1845 #ifdef SUPPORT_XATTRS
1846 preserve_xattrs++;
1847 break;
1848 #else
1849 snprintf(err_buf,sizeof(err_buf),
1850 "extended attributes are not supported on this %s\n",
1851 am_server ? "server" : "client");
1852 return 0;
1853 #endif
1854
1855 case OPT_STOP_AFTER: {
1856 long val;
1857 arg = poptGetOptArg(pc);
1858 stop_at_utime = time(NULL);
1859 if ((val = atol(arg) * 60) <= 0 || LONG_MAX - val < stop_at_utime || (long)(time_t)val != val) {
1860 snprintf(err_buf, sizeof err_buf, "invalid --stop-after value: %s\n", arg);
1861 return 0;
1862 }
1863 stop_at_utime += val;
1864 break;
1865 }
1866
1867 #ifdef HAVE_MKTIME
1868 case OPT_STOP_AT:
1869 arg = poptGetOptArg(pc);
1870 if ((stop_at_utime = parse_time(arg)) == (time_t)-1) {
1871 snprintf(err_buf, sizeof err_buf, "invalid --stop-at format: %s\n", arg);
1872 return 0;
1873 }
1874 if (stop_at_utime <= time(NULL)) {
1875 snprintf(err_buf, sizeof err_buf, "--stop-at time is not in the future: %s\n", arg);
1876 return 0;
1877 }
1878 break;
1879 #endif
1880
1881 case OPT_STDERR: {
1882 int len;
1883 arg = poptGetOptArg(pc);
1884 len = strlen(arg);
1885 if (len && strncmp("errors", arg, len) == 0)
1886 msgs2stderr = 2;
1887 else if (len && strncmp("all", arg, len) == 0)
1888 msgs2stderr = 1;
1889 else if (len && strncmp("client", arg, len) == 0)
1890 msgs2stderr = 0;
1891 else {
1892 snprintf(err_buf, sizeof err_buf,
1893 "--stderr mode \"%s\" is not one of errors, all, or client\n", arg);
1894 return 0;
1895 }
1896 break;
1897 }
1898
1899 default:
1900 /* A large opt value means that set_refuse_options()
1901 * turned this option off. */
1902 if (opt >= OPT_REFUSED_BASE) {
1903 create_refuse_error(opt);
1904 return 0;
1905 }
1906 snprintf(err_buf, sizeof err_buf, "%s%s: %s\n",
1907 am_server ? "on remote machine: " : "",
1908 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1909 poptStrerror(opt));
1910 return 0;
1911 }
1912 }
1913
1914 if (version_opt_cnt) {
1915 print_rsync_version(FINFO);
1916 exit_cleanup(0);
1917 }
1918
1919 if (!max_alloc_arg) {
1920 max_alloc_arg = getenv("RSYNC_MAX_ALLOC");
1921 if (max_alloc_arg && !*max_alloc_arg)
1922 max_alloc_arg = NULL;
1923 }
1924 if (max_alloc_arg) {
1925 ssize_t size = parse_size_arg(max_alloc_arg, 'B', "max-alloc", 1024*1024, -1, True);
1926 if (size < 0)
1927 return 0;
1928 max_alloc = size;
1929 }
1930
1931 if (protect_args < 0) {
1932 if (am_server)
1933 protect_args = 0;
1934 else if ((arg = getenv("RSYNC_PROTECT_ARGS")) != NULL && *arg)
1935 protect_args = atoi(arg) ? 1 : 0;
1936 else {
1937 #ifdef RSYNC_USE_PROTECTED_ARGS
1938 protect_args = 1;
1939 #else
1940 protect_args = 0;
1941 #endif
1942 }
1943 }
1944
1945 if (checksum_choice && strcasecmp(checksum_choice, "auto") != 0 && strcasecmp(checksum_choice, "auto,auto") != 0) {
1946 /* Call this early to verify the args and figure out if we need to force
1947 * --whole-file. Note that the parse function will get called again later,
1948 * just in case an "auto" choice needs to know the protocol_version. */
1949 parse_checksum_choice(0);
1950 } else
1951 checksum_choice = NULL;
1952
1953 if (human_readable > 1 && argc == 2 && !am_server) {
1954 /* Allow the old meaning of 'h' (--help) on its own. */
1955 usage(FINFO);
1956 exit_cleanup(0);
1957 }
1958
1959 if (!compress_choice && do_compression > 1)
1960 compress_choice = "zlibx";
1961 if (compress_choice && strcasecmp(compress_choice, "auto") != 0)
1962 parse_compress_choice(0); /* Twiddles do_compression and can possibly NULL-out compress_choice. */
1963 else
1964 compress_choice = NULL;
1965
1966 if (do_compression || do_compression_level != CLVL_NOT_SPECIFIED) {
1967 if (!do_compression)
1968 do_compression = CPRES_AUTO;
1969 if (do_compression && refused_compress) {
1970 create_refuse_error(refused_compress);
1971 return 0;
1972 }
1973 }
1974
1975 #ifdef HAVE_SETVBUF
1976 if (outbuf_mode && !am_server) {
1977 int mode = *(uchar *)outbuf_mode;
1978 if (islower(mode))
1979 mode = toupper(mode);
1980 fflush(stdout); /* Just in case... */
1981 switch (mode) {
1982 case 'N': /* None */
1983 case 'U': /* Unbuffered */
1984 mode = _IONBF;
1985 break;
1986 case 'L': /* Line */
1987 mode = _IOLBF;
1988 break;
1989 case 'B': /* Block */
1990 case 'F': /* Full */
1991 mode = _IOFBF;
1992 break;
1993 default:
1994 snprintf(err_buf, sizeof err_buf,
1995 "Invalid --outbuf setting -- specify N, L, or B.\n");
1996 return 0;
1997 }
1998 setvbuf(stdout, (char *)NULL, mode, 0);
1999 }
2000
2001 if (msgs2stderr == 1) { /* Are all messages going to stderr? */
2002 /* Make stderr line buffered for better sharing of the stream. */
2003 fflush(stderr); /* Just in case... */
2004 setvbuf(stderr, (char *)NULL, _IOLBF, 0);
2005 }
2006 #endif
2007
2008 set_output_verbosity(verbose, DEFAULT_PRIORITY);
2009
2010 if (do_stats) {
2011 parse_output_words(info_words, info_levels,
2012 verbose > 1 ? "stats3" : "stats2", DEFAULT_PRIORITY);
2013 }
2014
2015 #ifdef ICONV_OPTION
2016 if (iconv_opt && protect_args != 2) {
2017 if (!am_server && strcmp(iconv_opt, "-") == 0)
2018 iconv_opt = NULL;
2019 else
2020 need_unsorted_flist = 1;
2021 }
2022 if (refused_no_iconv && !iconv_opt) {
2023 create_refuse_error(refused_no_iconv);
2024 return 0;
2025 }
2026 #endif
2027
2028 if (fuzzy_basis > 1)
2029 fuzzy_basis = basis_dir_cnt + 1;
2030
2031 /* Don't let the client reset protect_args if it was already processed */
2032 if (orig_protect_args == 2 && am_server)
2033 protect_args = orig_protect_args;
2034
2035 if (protect_args == 1 && am_server)
2036 return 1;
2037
2038 *argv_p = argv = poptGetArgs(pc);
2039 *argc_p = argc = count_args(argv);
2040
2041 #ifndef SUPPORT_LINKS
2042 if (preserve_links && !am_sender) {
2043 snprintf(err_buf, sizeof err_buf,
2044 "symlinks are not supported on this %s\n",
2045 am_server ? "server" : "client");
2046 return 0;
2047 }
2048 #endif
2049
2050 #ifndef SUPPORT_HARD_LINKS
2051 if (preserve_hard_links) {
2052 snprintf(err_buf, sizeof err_buf,
2053 "hard links are not supported on this %s\n",
2054 am_server ? "server" : "client");
2055 return 0;
2056 }
2057 #endif
2058
2059 #ifdef SUPPORT_XATTRS
2060 if (am_root < 0 && preserve_xattrs > 1) {
2061 snprintf(err_buf, sizeof err_buf,
2062 "--fake-super conflicts with -XX\n");
2063 return 0;
2064 }
2065 #else
2066 if (am_root < 0) {
2067 snprintf(err_buf, sizeof err_buf,
2068 "--fake-super requires an rsync with extended attributes enabled\n");
2069 return 0;
2070 }
2071 #endif
2072
2073 if (write_batch && read_batch) {
2074 snprintf(err_buf, sizeof err_buf,
2075 "--write-batch and --read-batch can not be used together\n");
2076 return 0;
2077 }
2078 if (write_batch > 0 || read_batch) {
2079 if (am_server) {
2080 rprintf(FINFO,
2081 "ignoring --%s-batch option sent to server\n",
2082 write_batch ? "write" : "read");
2083 /* We don't actually exit_cleanup(), so that we can
2084 * still service older version clients that still send
2085 * batch args to server. */
2086 read_batch = write_batch = 0;
2087 batch_name = NULL;
2088 } else if (dry_run)
2089 write_batch = 0;
2090 } else if (write_batch < 0 && dry_run)
2091 write_batch = 0;
2092 if (read_batch && files_from) {
2093 snprintf(err_buf, sizeof err_buf,
2094 "--read-batch cannot be used with --files-from\n");
2095 return 0;
2096 }
2097 if (read_batch && remove_source_files) {
2098 snprintf(err_buf, sizeof err_buf,
2099 "--read-batch cannot be used with --remove-%s-files\n",
2100 remove_source_files == 1 ? "source" : "sent");
2101 return 0;
2102 }
2103 if (batch_name && strlen(batch_name) > MAX_BATCH_NAME_LEN) {
2104 snprintf(err_buf, sizeof err_buf,
2105 "the batch-file name must be %d characters or less.\n",
2106 MAX_BATCH_NAME_LEN);
2107 return 0;
2108 }
2109
2110 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
2111 snprintf(err_buf, sizeof err_buf,
2112 "the --temp-dir path is WAY too long.\n");
2113 return 0;
2114 }
2115
2116 if (max_delete < 0 && max_delete != INT_MIN) {
2117 /* Negative numbers are treated as "no deletions". */
2118 max_delete = 0;
2119 }
2120
2121 if (files_from) {
2122 if (recurse == 1) /* preserve recurse == 2 */
2123 recurse = 0;
2124 if (xfer_dirs < 0)
2125 xfer_dirs = 1;
2126 }
2127
2128 if (argc < 2 && !read_batch && !am_server)
2129 list_only |= 1;
2130
2131 if (xfer_dirs >= 4) {
2132 parse_filter_str(&filter_list, "- /*/*", rule_template(0), 0);
2133 recurse = xfer_dirs = 1;
2134 } else if (recurse)
2135 xfer_dirs = 1;
2136 else if (xfer_dirs < 0)
2137 xfer_dirs = list_only ? 1 : 0;
2138
2139 if (relative_paths < 0)
2140 relative_paths = files_from? 1 : 0;
2141 if (!relative_paths)
2142 implied_dirs = 0;
2143
2144 if (delete_before + !!delete_during + delete_after > 1) {
2145 snprintf(err_buf, sizeof err_buf,
2146 "You may not combine multiple --delete-WHEN options.\n");
2147 return 0;
2148 }
2149 if (delete_before || delete_during || delete_after)
2150 delete_mode = 1;
2151 else if (delete_mode || delete_excluded) {
2152 /* Only choose now between before & during if one is refused. */
2153 if (refused_delete_before) {
2154 if (!refused_delete_during)
2155 delete_during = 1;
2156 else {
2157 create_refuse_error(refused_delete_before);
2158 return 0;
2159 }
2160 } else if (refused_delete_during)
2161 delete_before = 1;
2162 delete_mode = 1;
2163 }
2164 if (!xfer_dirs && delete_mode) {
2165 snprintf(err_buf, sizeof err_buf,
2166 "--delete does not work without --recursive (-r) or --dirs (-d).\n");
2167 return 0;
2168 }
2169
2170 if (missing_args == 3) /* simplify if both options were specified */
2171 missing_args = 2;
2172 if (refused_delete && (delete_mode || missing_args == 2)) {
2173 create_refuse_error(refused_delete);
2174 return 0;
2175 }
2176
2177 if (remove_source_files) {
2178 /* We only want to infer this refusal of --remove-source-files
2179 * via the refusal of "delete", not any of the "delete-FOO"
2180 * options. */
2181 if (refused_delete && am_sender) {
2182 create_refuse_error(refused_delete);
2183 return 0;
2184 }
2185 need_messages_from_generator = 1;
2186 }
2187
2188 if (munge_symlinks && !am_daemon) {
2189 STRUCT_STAT st;
2190 char prefix[SYMLINK_PREFIX_LEN]; /* NOT +1 ! */
2191 strlcpy(prefix, SYMLINK_PREFIX, sizeof prefix); /* trim the trailing slash */
2192 if (do_stat(prefix, &st) == 0 && S_ISDIR(st.st_mode)) {
2193 rprintf(FERROR, "Symlink munging is unsafe when a %s directory exists.\n",
2194 prefix);
2195 exit_cleanup(RERR_UNSUPPORTED);
2196 }
2197 }
2198
2199 if (sanitize_paths) {
2200 int i;
2201 for (i = argc; i-- > 0; )
2202 argv[i] = sanitize_path(NULL, argv[i], "", 0, SP_KEEP_DOT_DIRS);
2203 if (tmpdir)
2204 tmpdir = sanitize_path(NULL, tmpdir, NULL, 0, SP_DEFAULT);
2205 if (backup_dir)
2206 backup_dir = sanitize_path(NULL, backup_dir, NULL, 0, SP_DEFAULT);
2207 }
2208 if (daemon_filter_list.head && !am_sender) {
2209 filter_rule_list *elp = &daemon_filter_list;
2210 if (tmpdir) {
2211 char *dir;
2212 if (!*tmpdir)
2213 goto options_rejected;
2214 dir = tmpdir + (*tmpdir == '/' ? module_dirlen : 0);
2215 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2216 if (check_filter(elp, FLOG, dir, 1) < 0)
2217 goto options_rejected;
2218 }
2219 if (backup_dir) {
2220 char *dir;
2221 if (!*backup_dir)
2222 goto options_rejected;
2223 dir = backup_dir + (*backup_dir == '/' ? module_dirlen : 0);
2224 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2225 if (check_filter(elp, FLOG, dir, 1) < 0)
2226 goto options_rejected;
2227 }
2228 }
2229
2230 if (!backup_suffix)
2231 backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
2232 backup_suffix_len = strlen(backup_suffix);
2233 if (strchr(backup_suffix, '/') != NULL) {
2234 snprintf(err_buf, sizeof err_buf,
2235 "--suffix cannot contain slashes: %s\n",
2236 backup_suffix);
2237 return 0;
2238 }
2239 if (backup_dir) {
2240 size_t len;
2241 make_backups = 1; /* --backup-dir implies --backup */
2242 while (*backup_dir == '.' && backup_dir[1] == '/')
2243 backup_dir += 2;
2244 if (*backup_dir == '.' && backup_dir[1] == '\0')
2245 backup_dir++;
2246 len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
2247 if (len > sizeof backup_dir_buf - 128) {
2248 snprintf(err_buf, sizeof err_buf,
2249 "the --backup-dir path is WAY too long.\n");
2250 return 0;
2251 }
2252 backup_dir_len = (int)len;
2253 if (!backup_dir_len) {
2254 backup_dir_len = -1;
2255 backup_dir = NULL;
2256 } else if (backup_dir_buf[backup_dir_len - 1] != '/') {
2257 backup_dir_buf[backup_dir_len++] = '/';
2258 backup_dir_buf[backup_dir_len] = '\0';
2259 }
2260 backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
2261 }
2262 if (backup_dir) {
2263 /* No need for a suffix or a protect rule. */
2264 } else if (!backup_suffix_len && (!am_server || !am_sender)) {
2265 snprintf(err_buf, sizeof err_buf,
2266 "--suffix cannot be empty %s\n", backup_dir_len < 0
2267 ? "when --backup-dir is the same as the dest dir"
2268 : "without a --backup-dir");
2269 return 0;
2270 } else if (make_backups && delete_mode && !delete_excluded && !am_server) {
2271 snprintf(backup_dir_buf, sizeof backup_dir_buf,
2272 "P *%s", backup_suffix);
2273 parse_filter_str(&filter_list, backup_dir_buf, rule_template(0), 0);
2274 }
2275
2276 if (preserve_times) {
2277 preserve_times = PRESERVE_FILE_TIMES;
2278 if (!omit_dir_times)
2279 preserve_times |= PRESERVE_DIR_TIMES;
2280 #ifdef CAN_SET_SYMLINK_TIMES
2281 if (!omit_link_times)
2282 preserve_times |= PRESERVE_LINK_TIMES;
2283 #endif
2284 }
2285
2286 if (make_backups && !backup_dir) {
2287 omit_dir_times = 0; /* Implied, so avoid -O to sender. */
2288 preserve_times &= ~PRESERVE_DIR_TIMES;
2289 }
2290
2291 if (stdout_format) {
2292 if (am_server && log_format_has(stdout_format, 'I'))
2293 stdout_format_has_i = 2;
2294 else if (log_format_has(stdout_format, 'i'))
2295 stdout_format_has_i = itemize_changes | 1;
2296 if (!log_format_has(stdout_format, 'b')
2297 && !log_format_has(stdout_format, 'c')
2298 && !log_format_has(stdout_format, 'C'))
2299 log_before_transfer = !am_server;
2300 } else if (itemize_changes) {
2301 stdout_format = "%i %n%L";
2302 stdout_format_has_i = itemize_changes;
2303 log_before_transfer = !am_server;
2304 }
2305
2306 if (do_progress && !am_server) {
2307 if (!log_before_transfer && INFO_EQ(NAME, 0))
2308 parse_output_words(info_words, info_levels, "name", DEFAULT_PRIORITY);
2309 parse_output_words(info_words, info_levels, "flist2,progress", DEFAULT_PRIORITY);
2310 }
2311
2312 if (dry_run)
2313 do_xfers = 0;
2314
2315 set_io_timeout(io_timeout);
2316
2317 if (INFO_GTE(NAME, 1) && !stdout_format) {
2318 stdout_format = "%n%L";
2319 log_before_transfer = !am_server;
2320 }
2321 if (stdout_format_has_i || log_format_has(stdout_format, 'o'))
2322 stdout_format_has_o_or_i = 1;
2323
2324 if (logfile_name && !am_daemon) {
2325 if (!logfile_format) {
2326 logfile_format = "%i %n%L";
2327 logfile_format_has_i = logfile_format_has_o_or_i = 1;
2328 } else {
2329 if (log_format_has(logfile_format, 'i'))
2330 logfile_format_has_i = 1;
2331 if (logfile_format_has_i || log_format_has(logfile_format, 'o'))
2332 logfile_format_has_o_or_i = 1;
2333 }
2334 log_init(0);
2335 } else if (!am_daemon)
2336 logfile_format = NULL;
2337
2338 if (daemon_bwlimit && (!bwlimit || bwlimit > daemon_bwlimit))
2339 bwlimit = daemon_bwlimit;
2340 if (bwlimit) {
2341 bwlimit_writemax = (size_t)bwlimit * 128;
2342 if (bwlimit_writemax < 512)
2343 bwlimit_writemax = 512;
2344 }
2345
2346 if (append_mode) {
2347 if (whole_file > 0) {
2348 snprintf(err_buf, sizeof err_buf,
2349 "--append cannot be used with --whole-file\n");
2350 return 0;
2351 }
2352 if (refused_inplace) {
2353 create_refuse_error(refused_inplace);
2354 return 0;
2355 }
2356 inplace = 1;
2357 }
2358
2359 if (write_devices) {
2360 if (refused_inplace) {
2361 create_refuse_error(refused_inplace);
2362 return 0;
2363 }
2364 inplace = 1;
2365 }
2366
2367 if (delay_updates && !partial_dir)
2368 partial_dir = tmp_partialdir;
2369
2370 if (inplace) {
2371 #ifdef HAVE_FTRUNCATE
2372 if (partial_dir) {
2373 snprintf(err_buf, sizeof err_buf,
2374 "--%s cannot be used with --%s\n",
2375 append_mode ? "append" : "inplace",
2376 delay_updates ? "delay-updates" : "partial-dir");
2377 return 0;
2378 }
2379 /* --inplace implies --partial for refusal purposes, but we
2380 * clear the keep_partial flag for internal logic purposes. */
2381 if (refused_partial) {
2382 create_refuse_error(refused_partial);
2383 return 0;
2384 }
2385 keep_partial = 0;
2386 #else
2387 snprintf(err_buf, sizeof err_buf,
2388 "--%s is not supported on this %s\n",
2389 append_mode ? "append" : "inplace",
2390 am_server ? "server" : "client");
2391 return 0;
2392 #endif
2393 } else {
2394 if (keep_partial && !partial_dir && !am_server) {
2395 if ((arg = getenv("RSYNC_PARTIAL_DIR")) != NULL && *arg)
2396 partial_dir = strdup(arg);
2397 }
2398 if (partial_dir) {
2399 if (*partial_dir)
2400 clean_fname(partial_dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2401 if (!*partial_dir || strcmp(partial_dir, ".") == 0)
2402 partial_dir = NULL;
2403 if (!partial_dir && refused_partial) {
2404 create_refuse_error(refused_partial);
2405 return 0;
2406 }
2407 keep_partial = 1;
2408 }
2409 }
2410
2411 if (files_from) {
2412 char *h, *p;
2413 int q;
2414 if (argc > 2 || (!am_daemon && !am_server && argc == 1)) {
2415 usage(FERROR);
2416 exit_cleanup(RERR_SYNTAX);
2417 }
2418 if (strcmp(files_from, "-") == 0) {
2419 filesfrom_fd = 0;
2420 if (am_server)
2421 filesfrom_host = ""; /* reading from socket */
2422 } else if ((p = check_for_hostspec(files_from, &h, &q)) != 0) {
2423 if (am_server) {
2424 snprintf(err_buf, sizeof err_buf,
2425 "The --files-from sent to the server cannot specify a host.\n");
2426 return 0;
2427 }
2428 files_from = p;
2429 filesfrom_host = h;
2430 if (strcmp(files_from, "-") == 0) {
2431 snprintf(err_buf, sizeof err_buf,
2432 "Invalid --files-from remote filename\n");
2433 return 0;
2434 }
2435 } else {
2436 if (sanitize_paths)
2437 files_from = sanitize_path(NULL, files_from, NULL, 0, SP_DEFAULT);
2438 if (daemon_filter_list.head) {
2439 char *dir;
2440 if (!*files_from)
2441 goto options_rejected;
2442 dir = files_from + (*files_from == '/' ? module_dirlen : 0);
2443 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2444 if (check_filter(&daemon_filter_list, FLOG, dir, 0) < 0)
2445 goto options_rejected;
2446 }
2447 filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
2448 if (filesfrom_fd < 0) {
2449 snprintf(err_buf, sizeof err_buf,
2450 "failed to open files-from file %s: %s\n",
2451 files_from, strerror(errno));
2452 return 0;
2453 }
2454 }
2455 }
2456
2457 am_starting_up = 0;
2458
2459 return 1;
2460
2461 options_rejected:
2462 snprintf(err_buf, sizeof err_buf,
2463 "Your options have been rejected by the server.\n");
2464 return 0;
2465 }
2466
2467
2468 /**
2469 * Construct a filtered list of options to pass through from the
2470 * client to the server.
2471 *
2472 * This involves setting options that will tell the server how to
2473 * behave, and also filtering out options that are processed only
2474 * locally.
2475 **/
server_options(char ** args,int * argc_p)2476 void server_options(char **args, int *argc_p)
2477 {
2478 static char argstr[64];
2479 int ac = *argc_p;
2480 uchar where;
2481 char *arg;
2482 int i, x;
2483
2484 /* This should always remain first on the server's command-line. */
2485 args[ac++] = "--server";
2486
2487 if (!am_sender)
2488 args[ac++] = "--sender";
2489
2490 x = 1;
2491 argstr[0] = '-';
2492
2493 if (protect_args)
2494 argstr[x++] = 's';
2495
2496 for (i = 0; i < verbose; i++)
2497 argstr[x++] = 'v';
2498
2499 if (quiet && msgs2stderr)
2500 argstr[x++] = 'q';
2501 if (make_backups)
2502 argstr[x++] = 'b';
2503 if (update_only)
2504 argstr[x++] = 'u';
2505 if (!do_xfers) /* Note: NOT "dry_run"! */
2506 argstr[x++] = 'n';
2507 if (preserve_links)
2508 argstr[x++] = 'l';
2509 if ((xfer_dirs >= 2 && xfer_dirs < 4)
2510 || (xfer_dirs && !recurse && (list_only || (delete_mode && am_sender))))
2511 argstr[x++] = 'd';
2512 if (am_sender) {
2513 if (keep_dirlinks)
2514 argstr[x++] = 'K';
2515 if (prune_empty_dirs)
2516 argstr[x++] = 'm';
2517 if (omit_dir_times)
2518 argstr[x++] = 'O';
2519 if (omit_link_times)
2520 argstr[x++] = 'J';
2521 if (fuzzy_basis) {
2522 argstr[x++] = 'y';
2523 if (fuzzy_basis > 1)
2524 argstr[x++] = 'y';
2525 }
2526 } else {
2527 if (copy_links)
2528 argstr[x++] = 'L';
2529 if (copy_dirlinks)
2530 argstr[x++] = 'k';
2531 }
2532
2533 if (whole_file > 0)
2534 argstr[x++] = 'W';
2535 /* We don't need to send --no-whole-file, because it's the
2536 * default for remote transfers, and in any case old versions
2537 * of rsync will not understand it. */
2538
2539 if (preserve_hard_links) {
2540 argstr[x++] = 'H';
2541 if (preserve_hard_links > 1)
2542 argstr[x++] = 'H';
2543 }
2544 if (preserve_uid)
2545 argstr[x++] = 'o';
2546 if (preserve_gid)
2547 argstr[x++] = 'g';
2548 if (preserve_devices) /* ignore preserve_specials here */
2549 argstr[x++] = 'D';
2550 if (preserve_times)
2551 argstr[x++] = 't';
2552 if (preserve_atimes) {
2553 argstr[x++] = 'U';
2554 if (preserve_atimes > 1)
2555 argstr[x++] = 'U';
2556 }
2557 #ifdef SUPPORT_CRTIMES
2558 if (preserve_crtimes)
2559 argstr[x++] = 'N';
2560 #endif
2561 if (preserve_perms)
2562 argstr[x++] = 'p';
2563 else if (preserve_executability && am_sender)
2564 argstr[x++] = 'E';
2565 #ifdef SUPPORT_ACLS
2566 if (preserve_acls)
2567 argstr[x++] = 'A';
2568 #endif
2569 #ifdef SUPPORT_XATTRS
2570 if (preserve_xattrs) {
2571 argstr[x++] = 'X';
2572 if (preserve_xattrs > 1)
2573 argstr[x++] = 'X';
2574 }
2575 #endif
2576 if (recurse)
2577 argstr[x++] = 'r';
2578 if (always_checksum)
2579 argstr[x++] = 'c';
2580 if (cvs_exclude)
2581 argstr[x++] = 'C';
2582 if (ignore_times)
2583 argstr[x++] = 'I';
2584 if (relative_paths)
2585 argstr[x++] = 'R';
2586 if (one_file_system) {
2587 argstr[x++] = 'x';
2588 if (one_file_system > 1)
2589 argstr[x++] = 'x';
2590 }
2591 if (sparse_files)
2592 argstr[x++] = 'S';
2593 if (do_compression == CPRES_ZLIB)
2594 argstr[x++] = 'z';
2595
2596 set_allow_inc_recurse();
2597
2598 /* We don't really know the actual protocol_version at this point,
2599 * but checking the pre-negotiated value allows the user to use a
2600 * --protocol=29 override to avoid the use of this -eFLAGS opt. */
2601 if (protocol_version >= 30) {
2602 /* Use "eFlags" alias so that cull_options doesn't think that these are no-arg option letters. */
2603 #define eFlags argstr
2604 /* We make use of the -e option to let the server know about
2605 * any pre-release protocol version && some behavior flags. */
2606 eFlags[x++] = 'e';
2607 #if SUBPROTOCOL_VERSION != 0
2608 if (protocol_version == PROTOCOL_VERSION) {
2609 x += snprintf(argstr+x, sizeof argstr - x,
2610 "%d.%d",
2611 PROTOCOL_VERSION, SUBPROTOCOL_VERSION);
2612 } else
2613 #endif
2614 eFlags[x++] = '.';
2615 if (allow_inc_recurse)
2616 eFlags[x++] = 'i';
2617 #ifdef CAN_SET_SYMLINK_TIMES
2618 eFlags[x++] = 'L'; /* symlink time-setting support */
2619 #endif
2620 #ifdef ICONV_OPTION
2621 eFlags[x++] = 's'; /* symlink iconv translation support */
2622 #endif
2623 eFlags[x++] = 'f'; /* flist I/O-error safety support */
2624 eFlags[x++] = 'x'; /* xattr hardlink optimization not desired */
2625 eFlags[x++] = 'C'; /* support checksum seed order fix */
2626 eFlags[x++] = 'I'; /* support inplace_partial behavior */
2627 eFlags[x++] = 'v'; /* use varint for flist & compat flags; negotiate checksum */
2628 eFlags[x++] = 'u'; /* include name of uid 0 & gid 0 in the id map */
2629 /* NOTE: Avoid using 'V' -- it was the high bit of a write_byte() that became write_varint(). */
2630 #undef eFlags
2631 }
2632
2633 if (x >= (int)sizeof argstr) { /* Not possible... */
2634 rprintf(FERROR, "argstr overflow in server_options().\n");
2635 exit_cleanup(RERR_MALLOC);
2636 }
2637
2638 argstr[x] = '\0';
2639
2640 if (x > 1)
2641 args[ac++] = argstr;
2642
2643 #ifdef ICONV_OPTION
2644 if (iconv_opt) {
2645 char *set = strchr(iconv_opt, ',');
2646 if (set)
2647 set++;
2648 else
2649 set = iconv_opt;
2650 if (asprintf(&arg, "--iconv=%s", set) < 0)
2651 goto oom;
2652 args[ac++] = arg;
2653 }
2654 #endif
2655
2656 if (protect_args && !local_server) /* unprotected args stop here */
2657 args[ac++] = NULL;
2658
2659 if (list_only > 1)
2660 args[ac++] = "--list-only";
2661
2662 /* This makes sure that the remote rsync can handle deleting with -d
2663 * sans -r because the --no-r option was added at the same time. */
2664 if (xfer_dirs && !recurse && delete_mode && am_sender)
2665 args[ac++] = "--no-r";
2666
2667 if (preserve_fileflags)
2668 args[ac++] = "--fileflags";
2669
2670 if (do_compression && do_compression_level != CLVL_NOT_SPECIFIED) {
2671 if (asprintf(&arg, "--compress-level=%d", do_compression_level) < 0)
2672 goto oom;
2673 args[ac++] = arg;
2674 }
2675
2676 if (preserve_devices) {
2677 /* Note: sending "--devices" would not be backward-compatible. */
2678 if (!preserve_specials)
2679 args[ac++] = "--no-specials"; /* -D is already set. */
2680 } else if (preserve_specials)
2681 args[ac++] = "--specials";
2682
2683 /* The server side doesn't use our log-format, but in certain
2684 * circumstances they need to know a little about the option. */
2685 if (stdout_format && am_sender) {
2686 /* Use --log-format, not --out-format, for compatibility. */
2687 if (stdout_format_has_i > 1)
2688 args[ac++] = "--log-format=%i%I";
2689 else if (stdout_format_has_i)
2690 args[ac++] = "--log-format=%i";
2691 else if (stdout_format_has_o_or_i)
2692 args[ac++] = "--log-format=%o";
2693 else if (!verbose)
2694 args[ac++] = "--log-format=X";
2695 }
2696
2697 if (msgs2stderr == 1)
2698 args[ac++] = "--msgs2stderr";
2699 else if (msgs2stderr == 0)
2700 args[ac++] = "--no-msgs2stderr";
2701
2702 if (block_size) {
2703 if (asprintf(&arg, "-B%u", (int)block_size) < 0)
2704 goto oom;
2705 args[ac++] = arg;
2706 }
2707
2708 if (io_timeout) {
2709 if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
2710 goto oom;
2711 args[ac++] = arg;
2712 }
2713
2714 if (bwlimit) {
2715 if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
2716 goto oom;
2717 args[ac++] = arg;
2718 }
2719
2720 if (backup_dir) {
2721 args[ac++] = "--backup-dir";
2722 args[ac++] = backup_dir;
2723 }
2724
2725 /* Only send --suffix if it specifies a non-default value. */
2726 if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
2727 /* We use the following syntax to avoid weirdness with '~'. */
2728 if (asprintf(&arg, "--suffix=%s", backup_suffix) < 0)
2729 goto oom;
2730 args[ac++] = arg;
2731 }
2732
2733 if (checksum_choice) {
2734 if (asprintf(&arg, "--checksum-choice=%s", checksum_choice) < 0)
2735 goto oom;
2736 args[ac++] = arg;
2737 }
2738
2739 if (do_compression == CPRES_ZLIBX)
2740 args[ac++] = "--new-compress";
2741 else if (compress_choice && do_compression == CPRES_ZLIB)
2742 args[ac++] = "--old-compress";
2743 else if (compress_choice) {
2744 if (asprintf(&arg, "--compress-choice=%s", compress_choice) < 0)
2745 goto oom;
2746 args[ac++] = arg;
2747 }
2748
2749 if (am_sender) {
2750 if (max_delete > 0) {
2751 if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
2752 goto oom;
2753 args[ac++] = arg;
2754 } else if (max_delete == 0)
2755 args[ac++] = "--max-delete=-1";
2756 if (min_size >= 0) {
2757 args[ac++] = "--min-size";
2758 args[ac++] = min_size_arg;
2759 }
2760 if (max_size >= 0) {
2761 args[ac++] = "--max-size";
2762 args[ac++] = max_size_arg;
2763 }
2764 if (delete_before)
2765 args[ac++] = "--delete-before";
2766 else if (delete_during == 2)
2767 args[ac++] = "--delete-delay";
2768 else if (delete_during)
2769 args[ac++] = "--delete-during";
2770 else if (delete_after)
2771 args[ac++] = "--delete-after";
2772 else if (delete_mode && !delete_excluded)
2773 args[ac++] = "--delete";
2774 if (delete_excluded)
2775 args[ac++] = "--delete-excluded";
2776 if (force_delete)
2777 args[ac++] = "--force";
2778 #ifdef SUPPORT_FORCE_CHANGE
2779 if (force_change) {
2780 if (force_change == ALL_IMMUTABLE)
2781 args[ac++] = "--force-change";
2782 else if (force_change == USR_IMMUTABLE)
2783 args[ac++] = "--force-uchange";
2784 else if (force_change == SYS_IMMUTABLE)
2785 args[ac++] = "--force-schange";
2786 }
2787 #endif
2788 if (write_batch < 0)
2789 args[ac++] = "--only-write-batch=X";
2790 if (am_root > 1)
2791 args[ac++] = "--super";
2792 if (size_only)
2793 args[ac++] = "--size-only";
2794 if (do_stats)
2795 args[ac++] = "--stats";
2796 } else {
2797 if (skip_compress) {
2798 if (asprintf(&arg, "--skip-compress=%s", skip_compress) < 0)
2799 goto oom;
2800 args[ac++] = arg;
2801 }
2802 }
2803
2804 if (max_alloc_arg && max_alloc != DEFAULT_MAX_ALLOC) {
2805 args[ac++] = "--max-alloc";
2806 args[ac++] = max_alloc_arg;
2807 }
2808
2809 /* --delete-missing-args needs the cooperation of both sides, but
2810 * the sender can handle --ignore-missing-args by itself. */
2811 if (missing_args == 2)
2812 args[ac++] = "--delete-missing-args";
2813 else if (missing_args == 1 && !am_sender)
2814 args[ac++] = "--ignore-missing-args";
2815
2816 if (modify_window_set && am_sender) {
2817 char *fmt = modify_window < 0 ? "-@%d" : "--modify-window=%d";
2818 if (asprintf(&arg, fmt, modify_window) < 0)
2819 goto oom;
2820 args[ac++] = arg;
2821 }
2822
2823 if (checksum_seed) {
2824 if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
2825 goto oom;
2826 args[ac++] = arg;
2827 }
2828
2829 if (partial_dir && am_sender) {
2830 if (partial_dir != tmp_partialdir) {
2831 args[ac++] = "--partial-dir";
2832 args[ac++] = partial_dir;
2833 }
2834 if (delay_updates)
2835 args[ac++] = "--delay-updates";
2836 } else if (keep_partial && am_sender)
2837 args[ac++] = "--partial";
2838
2839 if (ignore_errors)
2840 args[ac++] = "--ignore-errors";
2841
2842 if (copy_unsafe_links)
2843 args[ac++] = "--copy-unsafe-links";
2844
2845 if (safe_symlinks)
2846 args[ac++] = "--safe-links";
2847
2848 if (numeric_ids)
2849 args[ac++] = "--numeric-ids";
2850
2851 if (use_qsort)
2852 args[ac++] = "--use-qsort";
2853
2854 if (am_sender) {
2855 if (usermap) {
2856 if (asprintf(&arg, "--usermap=%s", usermap) < 0)
2857 goto oom;
2858 args[ac++] = arg;
2859 }
2860
2861 if (groupmap) {
2862 if (asprintf(&arg, "--groupmap=%s", groupmap) < 0)
2863 goto oom;
2864 args[ac++] = arg;
2865 }
2866
2867 if (ignore_existing)
2868 args[ac++] = "--ignore-existing";
2869
2870 /* Backward compatibility: send --existing, not --ignore-non-existing. */
2871 if (ignore_non_existing)
2872 args[ac++] = "--existing";
2873
2874 if (tmpdir) {
2875 args[ac++] = "--temp-dir";
2876 args[ac++] = tmpdir;
2877 }
2878
2879 if (basis_dir[0]) {
2880 /* the server only needs this option if it is not the sender,
2881 * and it may be an older version that doesn't know this
2882 * option, so don't send it if client is the sender.
2883 */
2884 for (i = 0; i < basis_dir_cnt; i++) {
2885 args[ac++] = alt_dest_opt(0);
2886 args[ac++] = basis_dir[i];
2887 }
2888 }
2889 }
2890
2891 /* What flags do we need to send to the other side? */
2892 where = (am_server ? W_CLI : W_SRV) | (am_sender ? W_REC : W_SND);
2893 arg = make_output_option(info_words, info_levels, where);
2894 if (arg)
2895 args[ac++] = arg;
2896
2897 if (append_mode) {
2898 if (append_mode > 1)
2899 args[ac++] = "--append";
2900 args[ac++] = "--append";
2901 } else if (inplace)
2902 args[ac++] = "--inplace";
2903
2904 if (files_from && (!am_sender || filesfrom_host)) {
2905 if (filesfrom_host) {
2906 args[ac++] = "--files-from";
2907 args[ac++] = files_from;
2908 if (eol_nulls)
2909 args[ac++] = "--from0";
2910 } else {
2911 args[ac++] = "--files-from=-";
2912 args[ac++] = "--from0";
2913 }
2914 if (!relative_paths)
2915 args[ac++] = "--no-relative";
2916 }
2917 /* It's OK that this checks the upper-bound of the protocol_version. */
2918 if (relative_paths && !implied_dirs && (!am_sender || protocol_version >= 30))
2919 args[ac++] = "--no-implied-dirs";
2920
2921 if (write_devices && am_sender)
2922 args[ac++] = "--write-devices";
2923
2924 if (remove_source_files == 1)
2925 args[ac++] = "--remove-source-files";
2926 else if (remove_source_files)
2927 args[ac++] = "--remove-sent-files";
2928
2929 if (preallocate_files && am_sender)
2930 args[ac++] = "--preallocate";
2931
2932 if (open_noatime && preserve_atimes <= 1)
2933 args[ac++] = "--open-noatime";
2934
2935 if (mkpath_dest_arg && am_sender)
2936 args[ac++] = "--mkpath";
2937
2938 if (ac > MAX_SERVER_ARGS) { /* Not possible... */
2939 rprintf(FERROR, "argc overflow in server_options().\n");
2940 exit_cleanup(RERR_MALLOC);
2941 }
2942
2943 if (remote_option_cnt) {
2944 int j;
2945 if (ac + remote_option_cnt > MAX_SERVER_ARGS) {
2946 rprintf(FERROR, "too many remote options specified.\n");
2947 exit_cleanup(RERR_SYNTAX);
2948 }
2949 for (j = 1; j <= remote_option_cnt; j++)
2950 args[ac++] = (char*)remote_options[j];
2951 }
2952
2953 *argc_p = ac;
2954 return;
2955
2956 oom:
2957 out_of_memory("server_options");
2958 }
2959
2960 /* If str points to a valid hostspec, return allocated memory containing the
2961 * [USER@]HOST part of the string, and set the path_start_ptr to the part of
2962 * the string after the host part. Otherwise, return NULL. If port_ptr is
2963 * non-NULL, we must be parsing an rsync:// URL hostname, and we will set
2964 * *port_ptr if a port number is found. Note that IPv6 IPs will have their
2965 * (required for parsing) [ and ] chars elided from the returned string. */
parse_hostspec(char * str,char ** path_start_ptr,int * port_ptr)2966 static char *parse_hostspec(char *str, char **path_start_ptr, int *port_ptr)
2967 {
2968 char *s, *host_start = str;
2969 int hostlen = 0, userlen = 0;
2970 char *ret;
2971
2972 for (s = str; ; s++) {
2973 if (!*s) {
2974 /* It is only OK if we run out of string with rsync:// */
2975 if (!port_ptr)
2976 return NULL;
2977 if (!hostlen)
2978 hostlen = s - host_start;
2979 break;
2980 }
2981 if (*s == ':' || *s == '/') {
2982 if (!hostlen)
2983 hostlen = s - host_start;
2984 if (*s++ == '/') {
2985 if (!port_ptr)
2986 return NULL;
2987 } else if (port_ptr) {
2988 *port_ptr = atoi(s);
2989 while (isDigit(s)) s++;
2990 if (*s && *s++ != '/')
2991 return NULL;
2992 }
2993 break;
2994 }
2995 if (*s == '@') {
2996 userlen = s - str + 1;
2997 host_start = s + 1;
2998 } else if (*s == '[') {
2999 if (s != host_start++)
3000 return NULL;
3001 while (*s && *s != ']' && *s != '/') s++; /*SHARED ITERATOR*/
3002 hostlen = s - host_start;
3003 if (*s != ']' || (s[1] && s[1] != '/' && s[1] != ':') || !hostlen)
3004 return NULL;
3005 }
3006 }
3007
3008 *path_start_ptr = s;
3009 ret = new_array(char, userlen + hostlen + 1);
3010 if (userlen)
3011 strlcpy(ret, str, userlen + 1);
3012 strlcpy(ret + userlen, host_start, hostlen + 1);
3013 return ret;
3014 }
3015
3016 /* Look for a HOST specification of the form "HOST:PATH", "HOST::PATH", or
3017 * "rsync://HOST:PORT/PATH". If found, *host_ptr will be set to some allocated
3018 * memory with the HOST. If a daemon-accessing spec was specified, the value
3019 * of *port_ptr will contain a non-0 port number, otherwise it will be set to
3020 * 0. The return value is a pointer to the PATH. Note that the HOST spec can
3021 * be an IPv6 literal address enclosed in '[' and ']' (such as "[::1]" or
3022 * "[::ffff:127.0.0.1]") which is returned without the '[' and ']'. */
check_for_hostspec(char * s,char ** host_ptr,int * port_ptr)3023 char *check_for_hostspec(char *s, char **host_ptr, int *port_ptr)
3024 {
3025 char *path;
3026
3027 if (port_ptr && strncasecmp(URL_PREFIX, s, strlen(URL_PREFIX)) == 0) {
3028 *host_ptr = parse_hostspec(s + strlen(URL_PREFIX), &path, port_ptr);
3029 if (*host_ptr) {
3030 if (!*port_ptr)
3031 *port_ptr = -1; /* -1 indicates they want the default */
3032 return path;
3033 }
3034 }
3035
3036 *host_ptr = parse_hostspec(s, &path, NULL);
3037 if (!*host_ptr)
3038 return NULL;
3039
3040 if (*path == ':') {
3041 if (port_ptr && !*port_ptr)
3042 *port_ptr = -1;
3043 return path + 1;
3044 }
3045 if (port_ptr)
3046 *port_ptr = 0;
3047
3048 return path;
3049 }
3050