options.c

   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) 2002-2008 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 "ifuncs.h"
  24 #include <popt.h>
  25 #include "zlib/zlib.h"
  26
  27 extern int module_id;
  28 extern int local_server;
  29 extern int sanitize_paths;
  30 extern int daemon_over_rsh;
  31 extern unsigned int module_dirlen;
  32 extern struct filter_list_struct filter_list;
  33 extern struct filter_list_struct daemon_filter_list;
  34
  35 int make_backups = 0;
  36
  37 /**
  38  * If 1, send the whole file as literal data rather than trying to
  39  * create an incremental diff.
  40  *
  41  * If -1, then look at whether we're local or remote and go by that.
  42  *
  43  * @sa disable_deltas_p()
  44  **/
  45 int whole_file = -1;
  46
  47 int append_mode = 0;
  48 int keep_dirlinks = 0;
  49 int copy_dirlinks = 0;
  50 int copy_links = 0;
  51 int preserve_links = 0;
  52 int preserve_hard_links = 0;
  53 int preserve_acls = 0;
  54 int preserve_xattrs = 0;
  55 int preserve_perms = 0;
  56 int preserve_executability = 0;
  57 int preserve_devices = 0;
  58 int preserve_specials = 0;
  59 int preserve_uid = 0;
  60 int preserve_gid = 0;
  61 int preserve_times = 0;
  62 int update_only = 0;
  63 int cvs_exclude = 0;
  64 int dry_run = 0;
  65 int do_xfers = 1;
  66 int ignore_times = 0;
  67 int delete_mode = 0;
  68 int delete_during = 0;
  69 int delete_before = 0;
  70 int delete_after = 0;
  71 int delete_excluded = 0;
  72 int remove_source_files = 0;
  73 int one_file_system = 0;
  74 int protocol_version = PROTOCOL_VERSION;
  75 int sparse_files = 0;
  76 int do_compression = 0;
  77 int def_compress_level = Z_DEFAULT_COMPRESSION;
  78 int am_root = 0; /* 0 = normal, 1 = root, 2 = --super, -1 = --fake-super */
  79 int am_server = 0;
  80 int am_sender = 0;
  81 int am_starting_up = 1;
  82 int relative_paths = -1;
  83 int implied_dirs = 1;
  84 int numeric_ids = 0;
  85 int msgs2stderr = 0;
  86 int allow_8bit_chars = 0;
  87 int force_delete = 0;
  88 int io_timeout = 0;
  89 int prune_empty_dirs = 0;
  90 int use_qsort = 0;
  91 char *files_from = NULL;
  92 int filesfrom_fd = -1;
  93 char *filesfrom_host = NULL;
  94 int eol_nulls = 0;
  95 int protect_args = 0;
  96 int human_readable = 0;
  97 int recurse = 0;
  98 int allow_inc_recurse = 1;
  99 int xfer_dirs = -1;
 100 int am_daemon = 0;
 101 int connect_timeout = 0;
 102 int keep_partial = 0;
 103 int safe_symlinks = 0;
 104 int copy_unsafe_links = 0;
 105 int size_only = 0;
 106 int daemon_bwlimit = 0;
 107 int bwlimit = 0;
 108 int fuzzy_basis = 0;
 109 size_t bwlimit_writemax = 0;
 110 int ignore_existing = 0;
 111 int ignore_non_existing = 0;
 112 int need_messages_from_generator = 0;
 113 int max_delete = INT_MIN;
 114 OFF_T max_size = 0;
 115 OFF_T min_size = 0;
 116 int ignore_errors = 0;
 117 int modify_window = 0;
 118 int blocking_io = -1;
 119 int checksum_seed = 0;
 120 int inplace = 0;
 121 int delay_updates = 0;
 122 long block_size = 0; /* "long" because popt can't set an int32. */
 123 char *skip_compress = NULL;
 124
 125 /** Network address family. **/
 126 int default_af_hint
 127 #ifdef INET6
 128         = 0;            /* Any protocol */
 129 #else
 130         = AF_INET;      /* Must use IPv4 */
 131 # ifdef AF_INET6
 132 #  undef AF_INET6
 133 # endif
 134 # define AF_INET6 AF_INET /* make -6 option a no-op */
 135 #endif
 136
 137 /** Do not go into the background when run as --daemon.  Good
 138  * for debugging and required for running as a service on W32,
 139  * or under Unix process-monitors. **/
 140 int no_detach
 141 #if defined _WIN32 || defined __WIN32__
 142         = 1;
 143 #else
 144         = 0;
 145 #endif
 146
 147 int write_batch = 0;
 148 int read_batch = 0;
 149 int backup_dir_len = 0;
 150 int backup_suffix_len;
 151 unsigned int backup_dir_remainder;
 152
 153 char *backup_suffix = NULL;
 154 char *tmpdir = NULL;
 155 char *partial_dir = NULL;
 156 char *basis_dir[MAX_BASIS_DIRS+1];
 157 char *config_file = NULL;
 158 char *shell_cmd = NULL;
 159 char *logfile_name = NULL;
 160 char *logfile_format = NULL;
 161 char *stdout_format = NULL;
 162 char *password_file = NULL;
 163 char *rsync_path = RSYNC_PATH;
 164 char *backup_dir = NULL;
 165 char backup_dir_buf[MAXPATHLEN];
 166 char *sockopts = NULL;
 167 int rsync_port = 0;
 168 int compare_dest = 0;
 169 int copy_dest = 0;
 170 int link_dest = 0;
 171 int basis_dir_cnt = 0;
 172 char *dest_option = NULL;
 173
 174 static int remote_option_alloc = 0;
 175 int remote_option_cnt = 0;
 176 const char **remote_options = NULL;
 177
 178 int quiet = 0;
 179 int output_motd = 1;
 180 int log_before_transfer = 0;
 181 int stdout_format_has_i = 0;
 182 int stdout_format_has_o_or_i = 0;
 183 int logfile_format_has_i = 0;
 184 int logfile_format_has_o_or_i = 0;
 185 int always_checksum = 0;
 186 int list_only = 0;
 187
 188 #define MAX_BATCH_NAME_LEN 256  /* Must be less than MAXPATHLEN-13 */
 189 char *batch_name = NULL;
 190
 191 int need_unsorted_flist = 0;
 192 #ifdef ICONV_OPTION
 193 char *iconv_opt = ICONV_OPTION;
 194 #endif
 195
 196 struct chmod_mode_struct *chmod_modes = NULL;
 197
 198 static const char *debug_verbosity[] = {
 199         /*0*/ NULL,
 200         /*1*/ NULL,
 201         /*2*/ "bind,cmd,deltasum,connect,del,dup,filter,flist",
 202         /*3*/ "acl,backup,deltasum2,del2,exit,filter2,flist2,fuzzy,genr,own,recv,send,time",
 203         /*4*/ "cmd2,deltasum3,del3,exit2,flist3,iconv,own2,proto,time2",
 204         /*5*/ "chdir,deltasum4,flist4,fuzzy2,hlink",
 205 };
 206
 207 #define MAX_VERBOSITY ((int)(sizeof debug_verbosity / sizeof debug_verbosity[0]) - 1)
 208
 209 static const char *info_verbosity[1+MAX_VERBOSITY] = {
 210         /*0*/ NULL,
 211         /*1*/ "copy,del,flist,misc,name,stats,symsafe",
 212         /*2*/ "backup,misc2,mount,name2,remove,skip",
 213 };
 214
 215 #define MAX_OUT_LEVEL 4 /* The largest N allowed for any flagN word. */
 216
 217 short info_levels[COUNT_INFO], debug_levels[COUNT_DEBUG];
 218
 219 #define DEFAULT_PRIORITY 0      /* Default/implied/--verbose set values. */
 220 #define HELP_PRIORITY 1         /* The help output uses this level. */
 221 #define USER_PRIORITY 2         /* User-specified via --info or --debug */
 222 #define LIMIT_PRIORITY 3        /* Overriding priority when limiting values. */
 223
 224 #define W_CLI (1<<0)    /* client side */
 225 #define W_SRV (1<<1)    /* server side */
 226 #define W_SND (1<<2)    /* sending side */
 227 #define W_REC (1<<3)    /* receiving side */
 228
 229 struct output_struct {
 230         char *name;     /* The name of the info/debug flag. */
 231         char *help;     /* The description of the info/debug flag. */
 232         uchar namelen;  /* The length of the name string. */
 233         uchar flag;     /* The flag's value, for consistency check. */
 234         uchar where;    /* Bits indicating where the flag is used. */
 235         uchar priority; /* See *_PRIORITY defines. */
 236 };
 237
 238 #define INFO_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, INFO_##flag, where, 0 }
 239
 240 static struct output_struct info_words[COUNT_INFO+1] = {
 241         INFO_WORD(BACKUP, W_REC, "Mention files backed up"),
 242         INFO_WORD(COPY, W_REC, "Mention files copied locally on the receiving side"),
 243         INFO_WORD(DEL, W_REC, "Mention deletions on the receiving side"),
 244         INFO_WORD(FLIST, W_CLI, "Mention file-list receiving/sending (levels 1-2)"),
 245         INFO_WORD(MISC, W_SND|W_REC, "Mention miscellaneous information (levels 1-2)"),
 246         INFO_WORD(MOUNT, W_SND|W_REC, "Mention mounts that were found or skipped"),
 247         INFO_WORD(NAME, W_SND|W_REC, "Mention 1) updated file/dir names, 2) unchanged names"),
 248         INFO_WORD(PROGRESS, W_CLI, "Mention 1) per-file progress or 2) total transfer progress"),
 249         INFO_WORD(REMOVE, W_SND, "Mention files removed on the sending side"),
 250         INFO_WORD(SKIP, W_REC, "Mention files that are skipped due to options used"),
 251         INFO_WORD(STATS, W_CLI|W_SRV, "Mention statistics at end of run (levels 1-3)"),
 252         INFO_WORD(SYMSAFE, W_SND|W_REC, "Mention symlinks that are unsafe"),
 253         { NULL, "--info", 0, 0, 0, 0 }
 254 };
 255
 256 #define DEBUG_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, DEBUG_##flag, where, 0 }
 257
 258 static struct output_struct debug_words[COUNT_DEBUG+1] = {
 259         DEBUG_WORD(ACL, W_SND|W_REC, "Debug extra ACL info"),
 260         DEBUG_WORD(BACKUP, W_REC, "Debug backup actions (levels 1-2)"),
 261         DEBUG_WORD(BIND, W_CLI, "Debug socket bind actions"),
 262         DEBUG_WORD(CHDIR, W_CLI|W_SRV, "Debug when the current directory changes"),
 263         DEBUG_WORD(CONNECT, W_CLI, "Debug connection events"),
 264         DEBUG_WORD(CMD, W_CLI, "Debug commands+options that are issued (levels 1-2)"),
 265         DEBUG_WORD(DEL, W_REC, "Debug delete actions (levels 1-3)"),
 266         DEBUG_WORD(DELTASUM, W_SND|W_REC, "Debug delta-transfer checksumming (levels 1-4)"),
 267         DEBUG_WORD(DUP, W_REC, "Debug weeding of duplicate names"),
 268         DEBUG_WORD(EXIT, W_CLI|W_SRV, "Debug exit events (levels 1-2)"),
 269         DEBUG_WORD(FILTER, W_SND|W_REC, "Debug filter actions (levels 1-2)"),
 270         DEBUG_WORD(FLIST, W_SND|W_REC, "Debug file-list operations (levels 1-4)"),
 271         DEBUG_WORD(FUZZY, W_REC, "Debug fuzzy scoring (levels 1-2)"),
 272         DEBUG_WORD(GENR, W_REC, "Debug generator functions"),
 273         DEBUG_WORD(HLINK, W_SND|W_REC, "Debug hard-link actions"),
 274         DEBUG_WORD(ICONV, W_CLI|W_SRV, "Debug iconv (character conversion)"),
 275         DEBUG_WORD(OWN, W_REC, "Debug ownership changes in users & groups (levels 1-2)"),
 276         DEBUG_WORD(PROTO, W_CLI|W_SRV, "Debug protocol information"),
 277         DEBUG_WORD(RECV, W_REC, "Debug receiver functions"),
 278         DEBUG_WORD(SEND, W_SND, "Debug sender functions"),
 279         DEBUG_WORD(TIME, W_REC, "Debug setting of modified times (levels 1-2)"),
 280         { NULL, "--debug", 0, 0, 0, 0 }
 281 };
 282
 283 static int verbose = 0;
 284 static int do_stats = 0;
 285 static int do_progress = 0;
 286 static int daemon_opt;   /* sets am_daemon after option error-reporting */
 287 static int omit_dir_times = 0;
 288 static int F_option_cnt = 0;
 289 static int modify_window_set;
 290 static int itemize_changes = 0;
 291 static int refused_delete, refused_archive_part, refused_compress;
 292 static int refused_partial, refused_progress, refused_delete_before;
 293 static int refused_delete_during;
 294 static int refused_inplace, refused_no_iconv;
 295 static char *max_size_arg, *min_size_arg;
 296 static char tmp_partialdir[] = ".~tmp~";
 297
 298 /** Local address to bind.  As a character string because it's
 299  * interpreted by the IPv6 layer: should be a numeric IP4 or IP6
 300  * address, or a hostname. **/
 301 char *bind_address;
 302
 303 static void output_item_help(struct output_struct *words);
 304
 305 /* This constructs a string that represents all the options set for either
 306  * the --info or --debug setting, skipping any implied options (by -v, etc.).
 307  * This is used both when conveying the user's options to the server, and
 308  * when the help output wants to tell the user what options are implied. */
 309 static char *make_output_option(struct output_struct *words, short *levels, uchar where)
 310 {
 311         char *str = words == info_words ? "--info=" : "--debug=";
 312         int j, counts[MAX_OUT_LEVEL+1], pos, skipped = 0, len = 0, max = 0, lev = 0;
 313         int word_count = words == info_words ? COUNT_INFO : COUNT_DEBUG;
 314         char *buf;
 315
 316         memset(counts, 0, sizeof counts);
 317
 318         for (j = 0; words[j].name; j++) {
 319                 if (words[j].flag != j) {
 320                         rprintf(FERROR, "rsync: internal error on %s%s: %d != %d\n",
 321                                 words == info_words ? "INFO_" : "DEBUG_",
 322                                 words[j].name, words[j].flag, j);
 323                         exit_cleanup(RERR_UNSUPPORTED);
 324                 }
 325                 if (!(words[j].where & where))
 326                         continue;
 327                 if (words[j].priority == DEFAULT_PRIORITY) {
 328                         /* Implied items don't need to be mentioned. */
 329                         skipped++;
 330                         continue;
 331                 }
 332                 len += len ? 1 : strlen(str);
 333                 len += strlen(words[j].name);
 334                 len += levels[j] == 1 ? 0 : 1;
 335
 336                 if (words[j].priority == HELP_PRIORITY)
 337                         continue; /* no abbreviating for help */
 338
 339                 assert(levels[j] <= MAX_OUT_LEVEL);
 340                 if (++counts[levels[j]] > max) {
 341                         /* Determine which level has the most items. */
 342                         lev = levels[j];
 343                         max = counts[lev];
 344                 }
 345         }
 346
 347         /* Sanity check the COUNT_* define against the length of the table. */
 348         if (j != word_count) {
 349                 rprintf(FERROR, "rsync: internal error: %s is wrong! (%d != %d)\n",
 350                         words == info_words ? "COUNT_INFO" : "COUNT_DEBUG",
 351                         j, word_count);
 352                 exit_cleanup(RERR_UNSUPPORTED);
 353         }
 354
 355         if (!len)
 356                 return NULL;
 357
 358         len++;
 359         if (!(buf = new_array(char, len)))
 360                 out_of_memory("make_output_option");
 361         pos = 0;
 362
 363         if (skipped || max < 5)
 364                 lev = -1;
 365         else {
 366                 if (lev == 0)
 367                         pos += snprintf(buf, len, "%sNONE", str);
 368                 else if (lev == 1)
 369                         pos += snprintf(buf, len, "%sALL", str);
 370                 else
 371                         pos += snprintf(buf, len, "%sALL%d", str, lev);
 372         }
 373
 374         for (j = 0; words[j].name && pos < len; j++) {
 375                 if (words[j].priority == DEFAULT_PRIORITY || levels[j] == lev || !(words[j].where & where))
 376                         continue;
 377                 if (pos)
 378                         buf[pos++] = ',';
 379                 else
 380                         pos += strlcpy(buf+pos, str, len-pos);
 381                 if (pos < len)
 382                         pos += strlcpy(buf+pos, words[j].name, len-pos);
 383                 /* Level 1 is implied by the name alone. */
 384                 if (levels[j] != 1 && pos < len)
 385                         buf[pos++] = '0' + levels[j];
 386         }
 387
 388         buf[pos] = '\0';
 389
 390         return buf;
 391 }
 392
 393 static void parse_output_words(struct output_struct *words, short *levels,
 394                                const char *str, uchar priority)
 395 {
 396         const char *s;
 397         int j, len, lev;
 398
 399         if (!str)
 400                 return;
 401
 402         while (*str) {
 403                 if ((s = strchr(str, ',')) != NULL)
 404                         len = s++ - str;
 405                 else
 406                         len = strlen(str);
 407                 while (len && isDigit(str+len-1))
 408                         len--;
 409                 lev = isDigit(str+len) ? atoi(str+len) : 1;
 410                 if (lev > MAX_OUT_LEVEL)
 411                         lev = MAX_OUT_LEVEL;
 412                 if (len == 4 && strncasecmp(str, "help", 4) == 0) {
 413                         output_item_help(words);
 414                         exit_cleanup(0);
 415                 }
 416                 if (len == 4 && strncasecmp(str, "none", 4) == 0)
 417                         len = lev = 0;
 418                 else if (len == 3 && strncasecmp(str, "all", 3) == 0)
 419                         len = 0;
 420                 for (j = 0; words[j].name; j++) {
 421                         if (!len
 422                          || (len == words[j].namelen && strncasecmp(str, words[j].name, len) == 0)) {
 423                                 if (priority >= words[j].priority) {
 424                                         words[j].priority = priority;
 425                                         levels[j] = lev;
 426                                 }
 427                                 if (len)
 428                                         break;
 429                         }
 430                 }
 431                 if (len && !words[j].name) {
 432                         rprintf(FERROR, "Unknown %s item: \"%.*s\"\n",
 433                                 words[j].help, len, str);
 434                         exit_cleanup(RERR_SYNTAX);
 435                 }
 436                 if (!s)
 437                         break;
 438                 str = s;
 439         }
 440 }
 441
 442 /* Tell the user what all the info or debug flags mean. */
 443 static void output_item_help(struct output_struct *words)
 444 {
 445         short *levels = words == info_words ? info_levels : debug_levels;
 446         const char **verbosity = words == info_words ? info_verbosity : debug_verbosity;
 447         char buf[128], *opt, *fmt = "%-10s %s\n";
 448         int j;
 449
 450         reset_output_levels();
 451
 452         rprintf(FINFO, "Use OPT or OPT1 for level 1 output, OPT2 for level 2, etc.; OPT0 silences.\n");
 453         rprintf(FINFO, "\n");
 454         for (j = 0; words[j].name; j++)
 455                 rprintf(FINFO, fmt, words[j].name, words[j].help);
 456         rprintf(FINFO, "\n");
 457
 458         snprintf(buf, sizeof buf, "Set all %s options (e.g. all%d)",
 459                  words[j].help, MAX_OUT_LEVEL);
 460         rprintf(FINFO, fmt, "ALL", buf);
 461
 462         snprintf(buf, sizeof buf, "Silence all %s options (same as all0)",
 463                  words[j].help);
 464         rprintf(FINFO, fmt, "NONE", buf);
 465
 466         rprintf(FINFO, fmt, "HELP", "Output this help message");
 467         rprintf(FINFO, "\n");
 468         rprintf(FINFO, "Options added for each increase in verbose level:\n");
 469
 470         for (j = 1; j <= MAX_VERBOSITY; j++) {
 471                 parse_output_words(words, levels, verbosity[j], HELP_PRIORITY);
 472                 opt = make_output_option(words, levels, W_CLI|W_SRV|W_SND|W_REC);
 473                 if (opt) {
 474                         rprintf(FINFO, "%d) %s\n", j, strchr(opt, '=')+1);
 475                         free(opt);
 476                 }
 477                 reset_output_levels();
 478         }
 479 }
 480
 481 /* The --verbose option now sets info+debug flags. */
 482 static void set_output_verbosity(int level, uchar priority)
 483 {
 484         int j;
 485
 486         if (level > MAX_VERBOSITY)
 487                 level = MAX_VERBOSITY;
 488
 489         for (j = 1; j <= level; j++) {
 490                 parse_output_words(info_words, info_levels, info_verbosity[j], priority);
 491                 parse_output_words(debug_words, debug_levels, debug_verbosity[j], priority);
 492         }
 493 }
 494
 495 /* Limit the info+debug flag levels given a verbose-option level limit. */
 496 void limit_output_verbosity(int level)
 497 {
 498         short info_limits[COUNT_INFO], debug_limits[COUNT_DEBUG];
 499         int j;
 500
 501         if (level > MAX_VERBOSITY)
 502                 return;
 503
 504         memset(info_limits, 0, sizeof info_limits);
 505         memset(debug_limits, 0, sizeof debug_limits);
 506
 507         /* Compute the level limits in the above arrays. */
 508         for (j = 1; j <= level; j++) {
 509                 parse_output_words(info_words, info_limits, info_verbosity[j], LIMIT_PRIORITY);
 510                 parse_output_words(debug_words, debug_limits, debug_verbosity[j], LIMIT_PRIORITY);
 511         }
 512
 513         for (j = 0; j < COUNT_INFO; j++) {
 514                 if (info_levels[j] > info_limits[j])
 515                         info_levels[j] = info_limits[j];
 516         }
 517
 518         for (j = 0; j < COUNT_DEBUG; j++) {
 519                 if (debug_levels[j] > debug_limits[j])
 520                         debug_levels[j] = debug_limits[j];
 521         }
 522 }
 523
 524 void reset_output_levels(void)
 525 {
 526         int j;
 527
 528         memset(info_levels, 0, sizeof info_levels);
 529         memset(debug_levels, 0, sizeof debug_levels);
 530
 531         for (j = 0; j < COUNT_INFO; j++)
 532                 info_words[j].priority = DEFAULT_PRIORITY;
 533
 534         for (j = 0; j < COUNT_DEBUG; j++)
 535                 debug_words[j].priority = DEFAULT_PRIORITY;
 536 }
 537
 538 void negate_output_levels(void)
 539 {
 540         int j;
 541
 542         for (j = 0; j < COUNT_INFO; j++)
 543                 info_levels[j] *= -1;
 544
 545         for (j = 0; j < COUNT_DEBUG; j++)
 546                 debug_levels[j] *= -1;
 547 }
 548
 549 static void print_rsync_version(enum logcode f)
 550 {
 551         char *subprotocol = "";
 552         char const *got_socketpair = "no ";
 553         char const *have_inplace = "no ";
 554         char const *hardlinks = "no ";
 555         char const *symtimes = "no ";
 556         char const *acls = "no ";
 557         char const *xattrs = "no ";
 558         char const *links = "no ";
 559         char const *iconv = "no ";
 560         char const *ipv6 = "no ";
 561         STRUCT_STAT *dumstat;
 562
 563 #if SUBPROTOCOL_VERSION != 0
 564         asprintf(&subprotocol, ".PR%d", SUBPROTOCOL_VERSION);
 565 #endif
 566 #ifdef HAVE_SOCKETPAIR
 567         got_socketpair = "";
 568 #endif
 569 #ifdef HAVE_FTRUNCATE
 570         have_inplace = "";
 571 #endif
 572 #ifdef SUPPORT_HARD_LINKS
 573         hardlinks = "";
 574 #endif
 575 #ifdef SUPPORT_ACLS
 576         acls = "";
 577 #endif
 578 #ifdef SUPPORT_XATTRS
 579         xattrs = "";
 580 #endif
 581 #ifdef SUPPORT_LINKS
 582         links = "";
 583 #endif
 584 #ifdef INET6
 585         ipv6 = "";
 586 #endif
 587 #ifdef ICONV_OPTION
 588         iconv = "";
 589 #endif
 590 #if defined HAVE_LUTIMES && defined HAVE_UTIMES
 591         symtimes = "";
 592 #endif
 593
 594         rprintf(f, "%s  version %s  protocol version %d%s\n",
 595                 RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION, subprotocol);
 596         rprintf(f, "Copyright (C) 1996-2008 by Andrew Tridgell, Wayne Davison, and others.\n");
 597         rprintf(f, "Web site: http://rsync.samba.org/\n");
 598         rprintf(f, "Capabilities:\n");
 599         rprintf(f, "    %d-bit files, %d-bit inums, %d-bit timestamps, %d-bit long ints,\n",
 600                 (int)(sizeof (OFF_T) * 8),
 601                 (int)(sizeof dumstat->st_ino * 8), /* Don't check ino_t! */
 602                 (int)(sizeof (time_t) * 8),
 603                 (int)(sizeof (int64) * 8));
 604         rprintf(f, "    %ssocketpairs, %shardlinks, %ssymlinks, %sIPv6, batchfiles, %sinplace,\n",
 605                 got_socketpair, hardlinks, links, ipv6, have_inplace);
 606         rprintf(f, "    %sappend, %sACLs, %sxattrs, %siconv, %ssymtimes\n",
 607                 have_inplace, acls, xattrs, iconv, symtimes);
 608
 609 #ifdef MAINTAINER_MODE
 610         rprintf(f, "Panic Action: \"%s\"\n", get_panic_action());
 611 #endif
 612
 613 #if SIZEOF_INT64 < 8
 614         rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
 615 #endif
 616         if (sizeof (int64) != SIZEOF_INT64) {
 617                 rprintf(f,
 618                         "WARNING: size mismatch in SIZEOF_INT64 define (%d != %d)\n",
 619                         (int) SIZEOF_INT64, (int) sizeof (int64));
 620         }
 621
 622         rprintf(f,"\n");
 623         rprintf(f,"rsync comes with ABSOLUTELY NO WARRANTY.  This is free software, and you\n");
 624         rprintf(f,"are welcome to redistribute it under certain conditions.  See the GNU\n");
 625         rprintf(f,"General Public Licence for details.\n");
 626 }
 627
 628
 629 void usage(enum logcode F)
 630 {
 631   print_rsync_version(F);
 632
 633   rprintf(F,"\n");
 634   rprintf(F,"rsync is a file transfer program capable of efficient remote update\n");
 635   rprintf(F,"via a fast differencing algorithm.\n");
 636
 637   rprintf(F,"\n");
 638   rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... DEST\n");
 639   rprintf(F,"  or   rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
 640   rprintf(F,"  or   rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
 641   rprintf(F,"  or   rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST\n");
 642   rprintf(F,"  or   rsync [OPTION]... [USER@]HOST:SRC [DEST]\n");
 643   rprintf(F,"  or   rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
 644   rprintf(F,"  or   rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
 645   rprintf(F,"The ':' usages connect via remote shell, while '::' & 'rsync://' usages connect\n");
 646   rprintf(F,"to an rsync daemon, and require SRC or DEST to start with a module name.\n");
 647   rprintf(F,"\n");
 648   rprintf(F,"Options\n");
 649   rprintf(F," -v, --verbose               increase verbosity\n");
 650   rprintf(F,"     --info=FLAGS            fine-grained informational verbosity\n");
 651   rprintf(F,"     --debug=FLAGS           fine-grained debug verbosity\n");
 652   rprintf(F," -q, --quiet                 suppress non-error messages\n");
 653   rprintf(F,"     --no-motd               suppress daemon-mode MOTD (see manpage caveat)\n");
 654   rprintf(F," -c, --checksum              skip based on checksum, not mod-time & size\n");
 655   rprintf(F," -a, --archive               archive mode; equals -rlptgoD (no -H,-A,-X)\n");
 656   rprintf(F,"     --no-OPTION             turn off an implied OPTION (e.g. --no-D)\n");
 657   rprintf(F," -r, --recursive             recurse into directories\n");
 658   rprintf(F," -R, --relative              use relative path names\n");
 659   rprintf(F,"     --no-implied-dirs       don't send implied dirs with --relative\n");
 660   rprintf(F," -b, --backup                make backups (see --suffix & --backup-dir)\n");
 661   rprintf(F,"     --backup-dir=DIR        make backups into hierarchy based in DIR\n");
 662   rprintf(F,"     --suffix=SUFFIX         set backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX);
 663   rprintf(F," -u, --update                skip files that are newer on the receiver\n");
 664   rprintf(F,"     --inplace               update destination files in-place (SEE MAN PAGE)\n");
 665   rprintf(F,"     --append                append data onto shorter files\n");
 666   rprintf(F,"     --append-verify         like --append, but with old data in file checksum\n");
 667   rprintf(F," -d, --dirs                  transfer directories without recursing\n");
 668   rprintf(F," -l, --links                 copy symlinks as symlinks\n");
 669   rprintf(F," -L, --copy-links            transform symlink into referent file/dir\n");
 670   rprintf(F,"     --copy-unsafe-links     only \"unsafe\" symlinks are transformed\n");
 671   rprintf(F,"     --safe-links            ignore symlinks that point outside the source tree\n");
 672   rprintf(F," -k, --copy-dirlinks         transform symlink to a dir into referent dir\n");
 673   rprintf(F," -K, --keep-dirlinks         treat symlinked dir on receiver as dir\n");
 674   rprintf(F," -H, --hard-links            preserve hard links\n");
 675   rprintf(F," -p, --perms                 preserve permissions\n");
 676   rprintf(F," -E, --executability         preserve the file's executability\n");
 677   rprintf(F,"     --chmod=CHMOD           affect file and/or directory permissions\n");
 678 #ifdef SUPPORT_ACLS
 679   rprintf(F," -A, --acls                  preserve ACLs (implies --perms)\n");
 680 #endif
 681 #ifdef SUPPORT_XATTRS
 682   rprintf(F," -X, --xattrs                preserve extended attributes\n");
 683 #endif
 684   rprintf(F," -o, --owner                 preserve owner (super-user only)\n");
 685   rprintf(F," -g, --group                 preserve group\n");
 686   rprintf(F,"     --devices               preserve device files (super-user only)\n");
 687   rprintf(F,"     --specials              preserve special files\n");
 688   rprintf(F," -D                          same as --devices --specials\n");
 689   rprintf(F," -t, --times                 preserve modification times\n");
 690   rprintf(F," -O, --omit-dir-times        omit directories from --times\n");
 691   rprintf(F,"     --super                 receiver attempts super-user activities\n");
 692 #ifdef SUPPORT_XATTRS
 693   rprintf(F,"     --fake-super            store/recover privileged attrs using xattrs\n");
 694 #endif
 695   rprintf(F," -S, --sparse                handle sparse files efficiently\n");
 696   rprintf(F," -n, --dry-run               perform a trial run with no changes made\n");
 697   rprintf(F," -W, --whole-file            copy files whole (without delta-xfer algorithm)\n");
 698   rprintf(F," -x, --one-file-system       don't cross filesystem boundaries\n");
 699   rprintf(F," -B, --block-size=SIZE       force a fixed checksum block-size\n");
 700   rprintf(F," -e, --rsh=COMMAND           specify the remote shell to use\n");
 701   rprintf(F,"     --rsync-path=PROGRAM    specify the rsync to run on the remote machine\n");
 702   rprintf(F,"     --existing              skip creating new files on receiver\n");
 703   rprintf(F,"     --ignore-existing       skip updating files that already exist on receiver\n");
 704   rprintf(F,"     --remove-source-files   sender removes synchronized files (non-dirs)\n");
 705   rprintf(F,"     --del                   an alias for --delete-during\n");
 706   rprintf(F,"     --delete                delete extraneous files from destination dirs\n");
 707   rprintf(F,"     --delete-before         receiver deletes before transfer, not during\n");
 708   rprintf(F,"     --delete-during         receiver deletes during transfer (default)\n");
 709   rprintf(F,"     --delete-delay          find deletions during, delete after\n");
 710   rprintf(F,"     --delete-after          receiver deletes after transfer, not during\n");
 711   rprintf(F,"     --delete-excluded       also delete excluded files from destination dirs\n");
 712   rprintf(F,"     --ignore-errors         delete even if there are I/O errors\n");
 713   rprintf(F,"     --force                 force deletion of directories even if not empty\n");
 714   rprintf(F,"     --max-delete=NUM        don't delete more than NUM files\n");
 715   rprintf(F,"     --max-size=SIZE         don't transfer any file larger than SIZE\n");
 716   rprintf(F,"     --min-size=SIZE         don't transfer any file smaller than SIZE\n");
 717   rprintf(F,"     --partial               keep partially transferred files\n");
 718   rprintf(F,"     --partial-dir=DIR       put a partially transferred file into DIR\n");
 719   rprintf(F,"     --delay-updates         put all updated files into place at transfer's end\n");
 720   rprintf(F," -m, --prune-empty-dirs      prune empty directory chains from the file-list\n");
 721   rprintf(F,"     --numeric-ids           don't map uid/gid values by user/group name\n");
 722   rprintf(F,"     --timeout=SECONDS       set I/O timeout in seconds\n");
 723   rprintf(F,"     --contimeout=SECONDS    set daemon connection timeout in seconds\n");
 724   rprintf(F," -I, --ignore-times          don't skip files that match in size and mod-time\n");
 725   rprintf(F," -M, --remote-option=OPTION  send OPTION to the remote side only\n");
 726   rprintf(F,"     --size-only             skip files that match in size\n");
 727   rprintf(F,"     --modify-window=NUM     compare mod-times with reduced accuracy\n");
 728   rprintf(F," -T, --temp-dir=DIR          create temporary files in directory DIR\n");
 729   rprintf(F," -y, --fuzzy                 find similar file for basis if no dest file\n");
 730   rprintf(F,"     --compare-dest=DIR      also compare destination files relative to DIR\n");
 731   rprintf(F,"     --copy-dest=DIR         ... and include copies of unchanged files\n");
 732   rprintf(F,"     --link-dest=DIR         hardlink to files in DIR when unchanged\n");
 733   rprintf(F," -z, --compress              compress file data during the transfer\n");
 734   rprintf(F,"     --compress-level=NUM    explicitly set compression level\n");
 735   rprintf(F,"     --skip-compress=LIST    skip compressing files with a suffix in LIST\n");
 736   rprintf(F," -C, --cvs-exclude           auto-ignore files the same way CVS does\n");
 737   rprintf(F," -f, --filter=RULE           add a file-filtering RULE\n");
 738   rprintf(F," -F                          same as --filter='dir-merge /.rsync-filter'\n");
 739   rprintf(F,"                             repeated: --filter='- .rsync-filter'\n");
 740   rprintf(F,"     --exclude=PATTERN       exclude files matching PATTERN\n");
 741   rprintf(F,"     --exclude-from=FILE     read exclude patterns from FILE\n");
 742   rprintf(F,"     --include=PATTERN       don't exclude files matching PATTERN\n");
 743   rprintf(F,"     --include-from=FILE     read include patterns from FILE\n");
 744   rprintf(F,"     --files-from=FILE       read list of source-file names from FILE\n");
 745   rprintf(F," -0, --from0                 all *-from/filter files are delimited by 0s\n");
 746   rprintf(F," -s, --protect-args          no space-splitting; only wildcard special-chars\n");
 747   rprintf(F,"     --address=ADDRESS       bind address for outgoing socket to daemon\n");
 748   rprintf(F,"     --port=PORT             specify double-colon alternate port number\n");
 749   rprintf(F,"     --sockopts=OPTIONS      specify custom TCP options\n");
 750   rprintf(F,"     --blocking-io           use blocking I/O for the remote shell\n");
 751   rprintf(F,"     --stats                 give some file-transfer stats\n");
 752   rprintf(F," -8, --8-bit-output          leave high-bit chars unescaped in output\n");
 753   rprintf(F," -h, --human-readable        output numbers in a human-readable format\n");
 754   rprintf(F,"     --progress              show progress during transfer\n");
 755   rprintf(F," -P                          same as --partial --progress\n");
 756   rprintf(F," -i, --itemize-changes       output a change-summary for all updates\n");
 757   rprintf(F,"     --out-format=FORMAT     output updates using the specified FORMAT\n");
 758   rprintf(F,"     --log-file=FILE         log what we're doing to the specified FILE\n");
 759   rprintf(F,"     --log-file-format=FMT   log updates using the specified FMT\n");
 760   rprintf(F,"     --password-file=FILE    read daemon-access password from FILE\n");
 761   rprintf(F,"     --list-only             list the files instead of copying them\n");
 762   rprintf(F,"     --bwlimit=KBPS          limit I/O bandwidth; KBytes per second\n");
 763   rprintf(F,"     --write-batch=FILE      write a batched update to FILE\n");
 764   rprintf(F,"     --only-write-batch=FILE like --write-batch but w/o updating destination\n");
 765   rprintf(F,"     --read-batch=FILE       read a batched update from FILE\n");
 766   rprintf(F,"     --protocol=NUM          force an older protocol version to be used\n");
 767 #ifdef ICONV_OPTION
 768   rprintf(F,"     --iconv=CONVERT_SPEC    request charset conversion of filenames\n");
 769 #endif
 770   rprintf(F," -4, --ipv4                  prefer IPv4\n");
 771   rprintf(F," -6, --ipv6                  prefer IPv6\n");
 772   rprintf(F,"     --version               print version number\n");
 773   rprintf(F,"(-h) --help                  show this help (-h works with no other options)\n");
 774
 775   rprintf(F,"\n");
 776   rprintf(F,"Use \"rsync --daemon --help\" to see the daemon-mode command-line options.\n");
 777   rprintf(F,"Please see the rsync(1) and rsyncd.conf(5) man pages for full documentation.\n");
 778   rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
 779 }
 780
 781 enum {OPT_VERSION = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
 782       OPT_FILTER, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST, OPT_HELP,
 783       OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW, OPT_MIN_SIZE, OPT_CHMOD,
 784       OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_ONLY_WRITE_BATCH, OPT_MAX_SIZE,
 785       OPT_NO_D, OPT_APPEND, OPT_NO_ICONV, OPT_INFO, OPT_DEBUG,
 786       OPT_SERVER, OPT_REFUSED_BASE = 9000};
 787
 788 static struct poptOption long_options[] = {
 789   /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
 790   {"help",             0,  POPT_ARG_NONE,   0, OPT_HELP, 0, 0 },
 791   {"version",          0,  POPT_ARG_NONE,   0, OPT_VERSION, 0, 0},
 792   {"verbose",         'v', POPT_ARG_NONE,   0, 'v', 0, 0 },
 793   {"no-verbose",       0,  POPT_ARG_VAL,    &verbose, 0, 0, 0 },
 794   {"no-v",             0,  POPT_ARG_VAL,    &verbose, 0, 0, 0 },
 795   {"info",             0,  POPT_ARG_STRING, 0, OPT_INFO, 0, 0 },
 796   {"debug",            0,  POPT_ARG_STRING, 0, OPT_DEBUG, 0, 0 },
 797   {"msgs2stderr",      0,  POPT_ARG_NONE,   &msgs2stderr, 0, 0, 0 },
 798   {"quiet",           'q', POPT_ARG_NONE,   0, 'q', 0, 0 },
 799   {"motd",             0,  POPT_ARG_VAL,    &output_motd, 1, 0, 0 },
 800   {"no-motd",          0,  POPT_ARG_VAL,    &output_motd, 0, 0, 0 },
 801   {"stats",            0,  POPT_ARG_NONE,   &do_stats, 0, 0, 0 },
 802   {"human-readable",  'h', POPT_ARG_NONE,   0, 'h', 0, 0},
 803   {"no-human-readable",0,  POPT_ARG_VAL,    &human_readable, 0, 0, 0},
 804   {"no-h",             0,  POPT_ARG_VAL,    &human_readable, 0, 0, 0},
 805   {"dry-run",         'n', POPT_ARG_NONE,   &dry_run, 0, 0, 0 },
 806   {"archive",         'a', POPT_ARG_NONE,   0, 'a', 0, 0 },
 807   {"recursive",       'r', POPT_ARG_VAL,    &recurse, 2, 0, 0 },
 808   {"no-recursive",     0,  POPT_ARG_VAL,    &recurse, 0, 0, 0 },
 809   {"no-r",             0,  POPT_ARG_VAL,    &recurse, 0, 0, 0 },
 810   {"inc-recursive",    0,  POPT_ARG_VAL,    &allow_inc_recurse, 1, 0, 0 },
 811   {"no-inc-recursive", 0,  POPT_ARG_VAL,    &allow_inc_recurse, 0, 0, 0 },
 812   {"i-r",              0,  POPT_ARG_VAL,    &allow_inc_recurse, 1, 0, 0 },
 813   {"no-i-r",           0,  POPT_ARG_VAL,    &allow_inc_recurse, 0, 0, 0 },
 814   {"dirs",            'd', POPT_ARG_VAL,    &xfer_dirs, 2, 0, 0 },
 815   {"no-dirs",          0,  POPT_ARG_VAL,    &xfer_dirs, 0, 0, 0 },
 816   {"no-d",             0,  POPT_ARG_VAL,    &xfer_dirs, 0, 0, 0 },
 817   {"old-dirs",         0,  POPT_ARG_VAL,    &xfer_dirs, 4, 0, 0 },
 818   {"old-d",            0,  POPT_ARG_VAL,    &xfer_dirs, 4, 0, 0 },
 819   {"perms",           'p', POPT_ARG_VAL,    &preserve_perms, 1, 0, 0 },
 820   {"no-perms",         0,  POPT_ARG_VAL,    &preserve_perms, 0, 0, 0 },
 821   {"no-p",             0,  POPT_ARG_VAL,    &preserve_perms, 0, 0, 0 },
 822   {"executability",   'E', POPT_ARG_NONE,   &preserve_executability, 0, 0, 0 },
 823   {"acls",            'A', POPT_ARG_NONE,   0, 'A', 0, 0 },
 824   {"no-acls",          0,  POPT_ARG_VAL,    &preserve_acls, 0, 0, 0 },
 825   {"no-A",             0,  POPT_ARG_VAL,    &preserve_acls, 0, 0, 0 },
 826   {"xattrs",          'X', POPT_ARG_NONE,   0, 'X', 0, 0 },
 827   {"no-xattrs",        0,  POPT_ARG_VAL,    &preserve_xattrs, 0, 0, 0 },
 828   {"no-X",             0,  POPT_ARG_VAL,    &preserve_xattrs, 0, 0, 0 },
 829   {"times",           't', POPT_ARG_VAL,    &preserve_times, 2, 0, 0 },
 830   {"no-times",         0,  POPT_ARG_VAL,    &preserve_times, 0, 0, 0 },
 831   {"no-t",             0,  POPT_ARG_VAL,    &preserve_times, 0, 0, 0 },
 832   {"omit-dir-times",  'O', POPT_ARG_VAL,    &omit_dir_times, 1, 0, 0 },
 833   {"no-omit-dir-times",0,  POPT_ARG_VAL,    &omit_dir_times, 0, 0, 0 },
 834   {"no-O",             0,  POPT_ARG_VAL,    &omit_dir_times, 0, 0, 0 },
 835   {"modify-window",    0,  POPT_ARG_INT,    &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
 836   {"super",            0,  POPT_ARG_VAL,    &am_root, 2, 0, 0 },
 837   {"no-super",         0,  POPT_ARG_VAL,    &am_root, 0, 0, 0 },
 838   {"fake-super",       0,  POPT_ARG_VAL,    &am_root, -1, 0, 0 },
 839   {"owner",           'o', POPT_ARG_VAL,    &preserve_uid, 1, 0, 0 },
 840   {"no-owner",         0,  POPT_ARG_VAL,    &preserve_uid, 0, 0, 0 },
 841   {"no-o",             0,  POPT_ARG_VAL,    &preserve_uid, 0, 0, 0 },
 842   {"group",           'g', POPT_ARG_VAL,    &preserve_gid, 1, 0, 0 },
 843   {"no-group",         0,  POPT_ARG_VAL,    &preserve_gid, 0, 0, 0 },
 844   {"no-g",             0,  POPT_ARG_VAL,    &preserve_gid, 0, 0, 0 },
 845   {0,                 'D', POPT_ARG_NONE,   0, 'D', 0, 0 },
 846   {"no-D",             0,  POPT_ARG_NONE,   0, OPT_NO_D, 0, 0 },
 847   {"devices",          0,  POPT_ARG_VAL,    &preserve_devices, 1, 0, 0 },
 848   {"no-devices",       0,  POPT_ARG_VAL,    &preserve_devices, 0, 0, 0 },
 849   {"specials",         0,  POPT_ARG_VAL,    &preserve_specials, 1, 0, 0 },
 850   {"no-specials",      0,  POPT_ARG_VAL,    &preserve_specials, 0, 0, 0 },
 851   {"links",           'l', POPT_ARG_VAL,    &preserve_links, 1, 0, 0 },
 852   {"no-links",         0,  POPT_ARG_VAL,    &preserve_links, 0, 0, 0 },
 853   {"no-l",             0,  POPT_ARG_VAL,    &preserve_links, 0, 0, 0 },
 854   {"copy-links",      'L', POPT_ARG_NONE,   &copy_links, 0, 0, 0 },
 855   {"copy-unsafe-links",0,  POPT_ARG_NONE,   &copy_unsafe_links, 0, 0, 0 },
 856   {"safe-links",       0,  POPT_ARG_NONE,   &safe_symlinks, 0, 0, 0 },
 857   {"copy-dirlinks",   'k', POPT_ARG_NONE,   &copy_dirlinks, 0, 0, 0 },
 858   {"keep-dirlinks",   'K', POPT_ARG_NONE,   &keep_dirlinks, 0, 0, 0 },
 859   {"hard-links",      'H', POPT_ARG_NONE,   0, 'H', 0, 0 },
 860   {"no-hard-links",    0,  POPT_ARG_VAL,    &preserve_hard_links, 0, 0, 0 },
 861   {"no-H",             0,  POPT_ARG_VAL,    &preserve_hard_links, 0, 0, 0 },
 862   {"relative",        'R', POPT_ARG_VAL,    &relative_paths, 1, 0, 0 },
 863   {"no-relative",      0,  POPT_ARG_VAL,    &relative_paths, 0, 0, 0 },
 864   {"no-R",             0,  POPT_ARG_VAL,    &relative_paths, 0, 0, 0 },
 865   {"implied-dirs",     0,  POPT_ARG_VAL,    &implied_dirs, 1, 0, 0 },
 866   {"no-implied-dirs",  0,  POPT_ARG_VAL,    &implied_dirs, 0, 0, 0 },
 867   {"i-d",              0,  POPT_ARG_VAL,    &implied_dirs, 1, 0, 0 },
 868   {"no-i-d",           0,  POPT_ARG_VAL,    &implied_dirs, 0, 0, 0 },
 869   {"chmod",            0,  POPT_ARG_STRING, 0, OPT_CHMOD, 0, 0 },
 870   {"ignore-times",    'I', POPT_ARG_NONE,   &ignore_times, 0, 0, 0 },
 871   {"size-only",        0,  POPT_ARG_NONE,   &size_only, 0, 0, 0 },
 872   {"one-file-system", 'x', POPT_ARG_NONE,   0, 'x', 0, 0 },
 873   {"no-one-file-system",'x',POPT_ARG_VAL,   &one_file_system, 0, 0, 0 },
 874   {"no-x",            'x', POPT_ARG_VAL,    &one_file_system, 0, 0, 0 },
 875   {"update",          'u', POPT_ARG_NONE,   &update_only, 0, 0, 0 },
 876   {"existing",         0,  POPT_ARG_NONE,   &ignore_non_existing, 0, 0, 0 },
 877   {"ignore-non-existing",0,POPT_ARG_NONE,   &ignore_non_existing, 0, 0, 0 },
 878   {"ignore-existing",  0,  POPT_ARG_NONE,   &ignore_existing, 0, 0, 0 },
 879   {"max-size",         0,  POPT_ARG_STRING, &max_size_arg, OPT_MAX_SIZE, 0, 0 },
 880   {"min-size",         0,  POPT_ARG_STRING, &min_size_arg, OPT_MIN_SIZE, 0, 0 },
 881   {"sparse",          'S', POPT_ARG_VAL,    &sparse_files, 1, 0, 0 },
 882   {"no-sparse",        0,  POPT_ARG_VAL,    &sparse_files, 0, 0, 0 },
 883   {"no-S",             0,  POPT_ARG_VAL,    &sparse_files, 0, 0, 0 },
 884   {"inplace",          0,  POPT_ARG_VAL,    &inplace, 1, 0, 0 },
 885   {"no-inplace",       0,  POPT_ARG_VAL,    &inplace, 0, 0, 0 },
 886   {"append",           0,  POPT_ARG_NONE,   0, OPT_APPEND, 0, 0 },
 887   {"append-verify",    0,  POPT_ARG_VAL,    &append_mode, 2, 0, 0 },
 888   {"no-append",        0,  POPT_ARG_VAL,    &append_mode, 0, 0, 0 },
 889   {"del",              0,  POPT_ARG_NONE,   &delete_during, 0, 0, 0 },
 890   {"delete",           0,  POPT_ARG_NONE,   &delete_mode, 0, 0, 0 },
 891   {"delete-before",    0,  POPT_ARG_NONE,   &delete_before, 0, 0, 0 },
 892   {"delete-during",    0,  POPT_ARG_VAL,    &delete_during, 1, 0, 0 },
 893   {"delete-delay",     0,  POPT_ARG_VAL,    &delete_during, 2, 0, 0 },
 894   {"delete-after",     0,  POPT_ARG_NONE,   &delete_after, 0, 0, 0 },
 895   {"delete-excluded",  0,  POPT_ARG_NONE,   &delete_excluded, 0, 0, 0 },
 896   {"remove-sent-files",0,  POPT_ARG_VAL,    &remove_source_files, 2, 0, 0 }, /* deprecated */
 897   {"remove-source-files",0,POPT_ARG_VAL,    &remove_source_files, 1, 0, 0 },
 898   {"force",            0,  POPT_ARG_VAL,    &force_delete, 1, 0, 0 },
 899   {"no-force",         0,  POPT_ARG_VAL,    &force_delete, 0, 0, 0 },
 900   {"ignore-errors",    0,  POPT_ARG_VAL,    &ignore_errors, 1, 0, 0 },
 901   {"no-ignore-errors", 0,  POPT_ARG_VAL,    &ignore_errors, 0, 0, 0 },
 902   {"max-delete",       0,  POPT_ARG_INT,    &max_delete, 0, 0, 0 },
 903   {0,                 'F', POPT_ARG_NONE,   0, 'F', 0, 0 },
 904   {"filter",          'f', POPT_ARG_STRING, 0, OPT_FILTER, 0, 0 },
 905   {"exclude",          0,  POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
 906   {"include",          0,  POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
 907   {"exclude-from",     0,  POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
 908   {"include-from",     0,  POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
 909   {"cvs-exclude",     'C', POPT_ARG_NONE,   &cvs_exclude, 0, 0, 0 },
 910   {"whole-file",      'W', POPT_ARG_VAL,    &whole_file, 1, 0, 0 },
 911   {"no-whole-file",    0,  POPT_ARG_VAL,    &whole_file, 0, 0, 0 },
 912   {"no-W",             0,  POPT_ARG_VAL,    &whole_file, 0, 0, 0 },
 913   {"checksum",        'c', POPT_ARG_VAL,    &always_checksum, 1, 0, 0 },
 914   {"no-checksum",      0,  POPT_ARG_VAL,    &always_checksum, 0, 0, 0 },
 915   {"no-c",             0,  POPT_ARG_VAL,    &always_checksum, 0, 0, 0 },
 916   {"block-size",      'B', POPT_ARG_LONG,   &block_size, 0, 0, 0 },
 917   {"compare-dest",     0,  POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 },
 918   {"copy-dest",        0,  POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 },
 919   {"link-dest",        0,  POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 },
 920   {"fuzzy",           'y', POPT_ARG_VAL,    &fuzzy_basis, 1, 0, 0 },
 921   {"no-fuzzy",         0,  POPT_ARG_VAL,    &fuzzy_basis, 0, 0, 0 },
 922   {"no-y",             0,  POPT_ARG_VAL,    &fuzzy_basis, 0, 0, 0 },
 923   {"compress",        'z', POPT_ARG_NONE,   0, 'z', 0, 0 },
 924   {"no-compress",      0,  POPT_ARG_VAL,    &do_compression, 0, 0, 0 },
 925   {"no-z",             0,  POPT_ARG_VAL,    &do_compression, 0, 0, 0 },
 926   {"skip-compress",    0,  POPT_ARG_STRING, &skip_compress, 0, 0, 0 },
 927   {"compress-level",   0,  POPT_ARG_INT,    &def_compress_level, 'z', 0, 0 },
 928   {0,                 'P', POPT_ARG_NONE,   0, 'P', 0, 0 },
 929   {"progress",         0,  POPT_ARG_VAL,    &do_progress, 1, 0, 0 },
 930   {"no-progress",      0,  POPT_ARG_VAL,    &do_progress, 0, 0, 0 },
 931   {"partial",          0,  POPT_ARG_VAL,    &keep_partial, 1, 0, 0 },
 932   {"no-partial",       0,  POPT_ARG_VAL,    &keep_partial, 0, 0, 0 },
 933   {"partial-dir",      0,  POPT_ARG_STRING, &partial_dir, 0, 0, 0 },
 934   {"delay-updates",    0,  POPT_ARG_VAL,    &delay_updates, 1, 0, 0 },
 935   {"no-delay-updates", 0,  POPT_ARG_VAL,    &delay_updates, 0, 0, 0 },
 936   {"prune-empty-dirs",'m', POPT_ARG_VAL,    &prune_empty_dirs, 1, 0, 0 },
 937   {"no-prune-empty-dirs",0,POPT_ARG_VAL,    &prune_empty_dirs, 0, 0, 0 },
 938   {"no-m",             0,  POPT_ARG_VAL,    &prune_empty_dirs, 0, 0, 0 },
 939   {"log-file",         0,  POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
 940   {"log-file-format",  0,  POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
 941   {"out-format",       0,  POPT_ARG_STRING, &stdout_format, 0, 0, 0 },
 942   {"log-format",       0,  POPT_ARG_STRING, &stdout_format, 0, 0, 0 }, /* DEPRECATED */
 943   {"itemize-changes", 'i', POPT_ARG_NONE,   0, 'i', 0, 0 },
 944   {"no-itemize-changes",0, POPT_ARG_VAL,    &itemize_changes, 0, 0, 0 },
 945   {"no-i",             0,  POPT_ARG_VAL,    &itemize_changes, 0, 0, 0 },
 946   {"bwlimit",          0,  POPT_ARG_INT,    &bwlimit, 0, 0, 0 },
 947   {"no-bwlimit",       0,  POPT_ARG_VAL,    &bwlimit, 0, 0, 0 },
 948   {"backup",          'b', POPT_ARG_VAL,    &make_backups, 1, 0, 0 },
 949   {"no-backup",        0,  POPT_ARG_VAL,    &make_backups, 0, 0, 0 },
 950   {"backup-dir",       0,  POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
 951   {"suffix",           0,  POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
 952   {"list-only",        0,  POPT_ARG_VAL,    &list_only, 2, 0, 0 },
 953   {"read-batch",       0,  POPT_ARG_STRING, &batch_name, OPT_READ_BATCH, 0, 0 },
 954   {"write-batch",      0,  POPT_ARG_STRING, &batch_name, OPT_WRITE_BATCH, 0, 0 },
 955   {"only-write-batch", 0,  POPT_ARG_STRING, &batch_name, OPT_ONLY_WRITE_BATCH, 0, 0 },
 956   {"files-from",       0,  POPT_ARG_STRING, &files_from, 0, 0, 0 },
 957   {"from0",           '0', POPT_ARG_VAL,    &eol_nulls, 1, 0, 0},
 958   {"no-from0",         0,  POPT_ARG_VAL,    &eol_nulls, 0, 0, 0},
 959   {"protect-args",    's', POPT_ARG_VAL,    &protect_args, 1, 0, 0},
 960   {"no-protect-args",  0,  POPT_ARG_VAL,    &protect_args, 0, 0, 0},
 961   {"no-s",             0,  POPT_ARG_VAL,    &protect_args, 0, 0, 0},
 962   {"numeric-ids",      0,  POPT_ARG_VAL,    &numeric_ids, 1, 0, 0 },
 963   {"no-numeric-ids",   0,  POPT_ARG_VAL,    &numeric_ids, 0, 0, 0 },
 964   {"timeout",          0,  POPT_ARG_INT,    &io_timeout, 0, 0, 0 },
 965   {"no-timeout",       0,  POPT_ARG_VAL,    &io_timeout, 0, 0, 0 },
 966   {"contimeout",       0,  POPT_ARG_INT,    &connect_timeout, 0, 0, 0 },
 967   {"no-contimeout",    0,  POPT_ARG_VAL,    &connect_timeout, 0, 0, 0 },
 968   {"rsh",             'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
 969   {"rsync-path",       0,  POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
 970   {"temp-dir",        'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
 971 #ifdef ICONV_OPTION
 972   {"iconv",            0,  POPT_ARG_STRING, &iconv_opt, 0, 0, 0 },
 973   {"no-iconv",         0,  POPT_ARG_NONE,   0, OPT_NO_ICONV, 0, 0 },
 974 #endif
 975   {"ipv4",            '4', POPT_ARG_VAL,    &default_af_hint, AF_INET, 0, 0 },
 976   {"ipv6",            '6', POPT_ARG_VAL,    &default_af_hint, AF_INET6, 0, 0 },
 977   {"8-bit-output",    '8', POPT_ARG_VAL,    &allow_8bit_chars, 1, 0, 0 },
 978   {"no-8-bit-output",  0,  POPT_ARG_VAL,    &allow_8bit_chars, 0, 0, 0 },
 979   {"no-8",             0,  POPT_ARG_VAL,    &allow_8bit_chars, 0, 0, 0 },
 980   {"qsort",            0,  POPT_ARG_NONE,   &use_qsort, 0, 0, 0 },
 981   {"address",          0,  POPT_ARG_STRING, &bind_address, 0, 0, 0 },
 982   {"port",             0,  POPT_ARG_INT,    &rsync_port, 0, 0, 0 },
 983   {"sockopts",         0,  POPT_ARG_STRING, &sockopts, 0, 0, 0 },
 984   {"password-file",    0,  POPT_ARG_STRING, &password_file, 0, 0, 0 },
 985   {"blocking-io",      0,  POPT_ARG_VAL,    &blocking_io, 1, 0, 0 },
 986   {"no-blocking-io",   0,  POPT_ARG_VAL,    &blocking_io, 0, 0, 0 },
 987   {"remote-option",   'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
 988   {"protocol",         0,  POPT_ARG_INT,    &protocol_version, 0, 0, 0 },
 989   {"checksum-seed",    0,  POPT_ARG_INT,    &checksum_seed, 0, 0, 0 },
 990   {"server",           0,  POPT_ARG_NONE,   0, OPT_SERVER, 0, 0 },
 991   {"sender",           0,  POPT_ARG_NONE,   0, OPT_SENDER, 0, 0 },
 992   /* All the following options switch us into daemon-mode option-parsing. */
 993   {"config",           0,  POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
 994   {"daemon",           0,  POPT_ARG_NONE,   0, OPT_DAEMON, 0, 0 },
 995   {"detach",           0,  POPT_ARG_NONE,   0, OPT_DAEMON, 0, 0 },
 996   {"no-detach",        0,  POPT_ARG_NONE,   0, OPT_DAEMON, 0, 0 },
 997   {0,0,0,0, 0, 0, 0}
 998 };
 999
1000 static void daemon_usage(enum logcode F)
1001 {
1002   print_rsync_version(F);
1003
1004   rprintf(F,"\n");
1005   rprintf(F,"Usage: rsync --daemon [OPTION]...\n");
1006   rprintf(F,"     --address=ADDRESS       bind to the specified address\n");
1007   rprintf(F,"     --bwlimit=KBPS          limit I/O bandwidth; KBytes per second\n");
1008   rprintf(F,"     --config=FILE           specify alternate rsyncd.conf file\n");
1009   rprintf(F,"     --no-detach             do not detach from the parent\n");
1010   rprintf(F,"     --port=PORT             listen on alternate port number\n");
1011   rprintf(F,"     --log-file=FILE         override the \"log file\" setting\n");
1012   rprintf(F,"     --log-file-format=FMT   override the \"log format\" setting\n");
1013   rprintf(F,"     --sockopts=OPTIONS      specify custom TCP options\n");
1014   rprintf(F," -v, --verbose               increase verbosity\n");
1015   rprintf(F," -4, --ipv4                  prefer IPv4\n");
1016   rprintf(F," -6, --ipv6                  prefer IPv6\n");
1017   rprintf(F,"     --help                  show this help screen\n");
1018
1019   rprintf(F,"\n");
1020   rprintf(F,"If you were not trying to invoke rsync as a daemon, avoid using any of the\n");
1021   rprintf(F,"daemon-specific rsync options.  See also the rsyncd.conf(5) man page.\n");
1022 }
1023
1024 static struct poptOption long_daemon_options[] = {
1025   /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
1026   {"address",          0,  POPT_ARG_STRING, &bind_address, 0, 0, 0 },
1027   {"bwlimit",          0,  POPT_ARG_INT,    &daemon_bwlimit, 0, 0, 0 },
1028   {"config",           0,  POPT_ARG_STRING, &config_file, 0, 0, 0 },
1029   {"daemon",           0,  POPT_ARG_NONE,   &daemon_opt, 0, 0, 0 },
1030   {"ipv4",            '4', POPT_ARG_VAL,    &default_af_hint, AF_INET, 0, 0 },
1031   {"ipv6",            '6', POPT_ARG_VAL,    &default_af_hint, AF_INET6, 0, 0 },
1032   {"detach",           0,  POPT_ARG_VAL,    &no_detach, 0, 0, 0 },
1033   {"no-detach",        0,  POPT_ARG_VAL,    &no_detach, 1, 0, 0 },
1034   {"log-file",         0,  POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
1035   {"log-file-format",  0,  POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
1036   {"port",             0,  POPT_ARG_INT,    &rsync_port, 0, 0, 0 },
1037   {"sockopts",         0,  POPT_ARG_STRING, &sockopts, 0, 0, 0 },
1038   {"protocol",         0,  POPT_ARG_INT,    &protocol_version, 0, 0, 0 },
1039   {"server",           0,  POPT_ARG_NONE,   &am_server, 0, 0, 0 },
1040   {"temp-dir",        'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
1041   {"verbose",         'v', POPT_ARG_NONE,   0, 'v', 0, 0 },
1042   {"no-verbose",       0,  POPT_ARG_VAL,    &verbose, 0, 0, 0 },
1043   {"no-v",             0,  POPT_ARG_VAL,    &verbose, 0, 0, 0 },
1044   {"help",            'h', POPT_ARG_NONE,   0, 'h', 0, 0 },
1045   {0,0,0,0, 0, 0, 0}
1046 };
1047
1048
1049 static char err_buf[200];
1050
1051
1052 /**
1053  * Store the option error message, if any, so that we can log the
1054  * connection attempt (which requires parsing the options), and then
1055  * show the error later on.
1056  **/
1057 void option_error(void)
1058 {
1059         if (!err_buf[0]) {
1060                 strlcpy(err_buf, "Error parsing options: option may "
1061                         "be supported on client but not on server?\n",
1062                         sizeof err_buf);
1063         }
1064
1065         rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
1066         msleep(20);
1067 }
1068
1069
1070 /**
1071  * Tweak the option table to disable all options that the rsyncd.conf
1072  * file has told us to refuse.
1073  **/
1074 static void set_refuse_options(char *bp)
1075 {
1076         struct poptOption *op;
1077         char *cp, shortname[2];
1078         int is_wild, found_match;
1079
1080         shortname[1] = '\0';
1081
1082         while (1) {
1083                 while (*bp == ' ') bp++;
1084                 if (!*bp)
1085                         break;
1086                 if ((cp = strchr(bp, ' ')) != NULL)
1087                         *cp= '\0';
1088                 is_wild = strpbrk(bp, "*?[") != NULL;
1089                 found_match = 0;
1090                 for (op = long_options; ; op++) {
1091                         *shortname = op->shortName;
1092                         if (!op->longName && !*shortname)
1093                                 break;
1094                         if ((op->longName && wildmatch(bp, op->longName))
1095                             || (*shortname && wildmatch(bp, shortname))) {
1096                                 if (op->argInfo == POPT_ARG_VAL)
1097                                         op->argInfo = POPT_ARG_NONE;
1098                                 op->val = (op - long_options) + OPT_REFUSED_BASE;
1099                                 found_match = 1;
1100                                 /* These flags are set to let us easily check
1101                                  * an implied option later in the code. */
1102                                 switch (*shortname) {
1103                                 case 'r': case 'd': case 'l': case 'p':
1104                                 case 't': case 'g': case 'o': case 'D':
1105                                         refused_archive_part = op->val;
1106                                         break;
1107                                 case 'z':
1108                                         refused_compress = op->val;
1109                                         break;
1110                                 case '\0':
1111                                         if (wildmatch("delete", op->longName))
1112                                                 refused_delete = op->val;
1113                                         else if (wildmatch("delete-before", op->longName))
1114                                                 refused_delete_before = op->val;
1115                                         else if (wildmatch("delete-during", op->longName))
1116                                                 refused_delete_during = op->val;
1117                                         else if (wildmatch("partial", op->longName))
1118                                                 refused_partial = op->val;
1119                                         else if (wildmatch("progress", op->longName))
1120                                                 refused_progress = op->val;
1121                                         else if (wildmatch("inplace", op->longName))
1122                                                 refused_inplace = op->val;
1123                                         else if (wildmatch("no-iconv", op->longName))
1124                                                 refused_no_iconv = op->val;
1125                                         break;
1126                                 }
1127                                 if (!is_wild)
1128                                         break;
1129                         }
1130                 }
1131                 if (!found_match) {
1132                         rprintf(FLOG, "No match for refuse-options string \"%s\"\n",
1133                                 bp);
1134                 }
1135                 if (!cp)
1136                         break;
1137                 *cp = ' ';
1138                 bp = cp + 1;
1139         }
1140 }
1141
1142
1143 static int count_args(const char **argv)
1144 {
1145         int i = 0;
1146
1147         if (argv) {
1148                 while (argv[i] != NULL)
1149                         i++;
1150         }
1151
1152         return i;
1153 }
1154
1155
1156 static OFF_T parse_size_arg(char **size_arg, char def_suf)
1157 {
1158         int reps, mult, make_compatible = 0;
1159         const char *arg;
1160         OFF_T size = 1;
1161
1162         for (arg = *size_arg; isDigit(arg); arg++) {}
1163         if (*arg == '.')
1164                 for (arg++; isDigit(arg); arg++) {}
1165         switch (*arg && *arg != '+' && *arg != '-' ? *arg++ : def_suf) {
1166         case 'b': case 'B':
1167                 reps = 0;
1168                 break;
1169         case 'k': case 'K':
1170                 reps = 1;
1171                 break;
1172         case 'm': case 'M':
1173                 reps = 2;
1174                 break;
1175         case 'g': case 'G':
1176                 reps = 3;
1177                 break;
1178         default:
1179                 return -1;
1180         }
1181         if (*arg == 'b' || *arg == 'B')
1182                 mult = 1000, make_compatible = 1, arg++;
1183         else if (!*arg || *arg == '+' || *arg == '-')
1184                 mult = 1024;
1185         else if (strncasecmp(arg, "ib", 2) == 0)
1186                 mult = 1024, arg += 2;
1187         else
1188                 return -1;
1189         while (reps--)
1190                 size *= mult;
1191         size *= atof(*size_arg);
1192         if ((*arg == '+' || *arg == '-') && arg[1] == '1')
1193                 size += atoi(arg), make_compatible = 1, arg += 2;
1194         if (*arg)
1195                 return -1;
1196         if (size > 0 && make_compatible) {
1197                 /* We convert this manually because we may need %lld precision,
1198                  * and that's not a portable sprintf() escape. */
1199                 char buf[128], *s = buf + sizeof buf - 1;
1200                 OFF_T num = size;
1201                 *s = '\0';
1202                 while (num) {
1203                         *--s = (char)(num % 10) + '0';
1204                         num /= 10;
1205                 }
1206                 if (!(*size_arg = strdup(s)))
1207                         out_of_memory("parse_size_arg");
1208         }
1209         return size;
1210 }
1211
1212
1213 static void create_refuse_error(int which)
1214 {
1215         /* The "which" value is the index + OPT_REFUSED_BASE. */
1216         struct poptOption *op = &long_options[which - OPT_REFUSED_BASE];
1217         int n = snprintf(err_buf, sizeof err_buf,
1218                          "The server is configured to refuse --%s\n",
1219                          op->longName) - 1;
1220         if (op->shortName) {
1221                 snprintf(err_buf + n, sizeof err_buf - n,
1222                          " (-%c)\n", op->shortName);
1223         }
1224 }
1225
1226
1227 /**
1228  * Process command line arguments.  Called on both local and remote.
1229  *
1230  * @retval 1 if all options are OK; with globals set to appropriate
1231  * values
1232  *
1233  * @retval 0 on error, with err_buf containing an explanation
1234  **/
1235 int parse_arguments(int *argc_p, const char ***argv_p)
1236 {
1237         static poptContext pc;
1238         char *ref = lp_refuse_options(module_id);
1239         const char *arg, **argv = *argv_p;
1240         int argc = *argc_p;
1241         int opt;
1242
1243         if (ref && *ref)
1244                 set_refuse_options(ref);
1245         if (am_daemon) {
1246                 set_refuse_options("log-file*");
1247 #ifdef ICONV_OPTION
1248                 if (!*lp_charset(module_id))
1249                         set_refuse_options("iconv");
1250 #endif
1251         }
1252
1253 #ifdef ICONV_OPTION
1254         if (!am_daemon && !protect_args && (arg = getenv("RSYNC_ICONV")) != NULL && *arg)
1255                 iconv_opt = strdup(arg);
1256 #endif
1257
1258         /* TODO: Call poptReadDefaultConfig; handle errors. */
1259
1260         /* The context leaks in case of an error, but if there's a
1261          * problem we always exit anyhow. */
1262         if (pc)
1263                 poptFreeContext(pc);
1264         pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
1265         if (!am_server)
1266                 poptReadDefaultConfig(pc, 0);
1267
1268         while ((opt = poptGetNextOpt(pc)) != -1) {
1269                 /* most options are handled automatically by popt;
1270                  * only special cases are returned and listed here. */
1271
1272                 switch (opt) {
1273                 case OPT_VERSION:
1274                         print_rsync_version(FINFO);
1275                         exit_cleanup(0);
1276
1277                 case OPT_SERVER:
1278                         if (!am_server) {
1279                                 /* Disable popt aliases on the server side and
1280                                  * then start parsing the options again. */
1281                                 poptFreeContext(pc);
1282                                 pc = poptGetContext(RSYNC_NAME, argc, argv,
1283                                                     long_options, 0);
1284                                 am_server = 1;
1285                         }
1286 #ifdef ICONV_OPTION
1287                         iconv_opt = NULL;
1288 #endif
1289                         break;
1290
1291                 case OPT_SENDER:
1292                         if (!am_server) {
1293                                 usage(FERROR);
1294                                 exit_cleanup(RERR_SYNTAX);
1295                         }
1296                         am_sender = 1;
1297                         break;
1298
1299                 case OPT_DAEMON:
1300                         if (am_daemon) {
1301                                 strlcpy(err_buf,
1302                                         "Attempt to hack rsync thwarted!\n",
1303                                         sizeof err_buf);
1304                                 return 0;
1305                         }
1306 #ifdef ICONV_OPTION
1307                         iconv_opt = NULL;
1308 #endif
1309                         poptFreeContext(pc);
1310                         pc = poptGetContext(RSYNC_NAME, argc, argv,
1311                                             long_daemon_options, 0);
1312                         while ((opt = poptGetNextOpt(pc)) != -1) {
1313                                 switch (opt) {
1314                                 case 'h':
1315                                         daemon_usage(FINFO);
1316                                         exit_cleanup(0);
1317
1318                                 case 'v':
1319                                         verbose++;
1320                                         break;
1321
1322                                 default:
1323                                         rprintf(FERROR,
1324                                             "rsync: %s: %s (in daemon mode)\n",
1325                                             poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1326                                             poptStrerror(opt));
1327                                         goto daemon_error;
1328                                 }
1329                         }
1330
1331                         if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
1332                                 snprintf(err_buf, sizeof err_buf,
1333                                          "the --temp-dir path is WAY too long.\n");
1334                                 return 0;
1335                         }
1336
1337                         if (!daemon_opt) {
1338                                 rprintf(FERROR, "Daemon option(s) used without --daemon.\n");
1339                             daemon_error:
1340                                 rprintf(FERROR,
1341                                     "(Type \"rsync --daemon --help\" for assistance with daemon mode.)\n");
1342                                 exit_cleanup(RERR_SYNTAX);
1343                         }
1344
1345                         *argv_p = argv = poptGetArgs(pc);
1346                         *argc_p = argc = count_args(argv);
1347                         am_starting_up = 0;
1348                         daemon_opt = 0;
1349                         am_daemon = 1;
1350                         return 1;
1351
1352                 case OPT_MODIFY_WINDOW:
1353                         /* The value has already been set by popt, but
1354                          * we need to remember that we're using a
1355                          * non-default setting. */
1356                         modify_window_set = 1;
1357                         break;
1358
1359                 case OPT_FILTER:
1360                         parse_rule(&filter_list, poptGetOptArg(pc), 0, 0);
1361                         break;
1362
1363                 case OPT_EXCLUDE:
1364                         parse_rule(&filter_list, poptGetOptArg(pc),
1365                                    0, XFLG_OLD_PREFIXES);
1366                         break;
1367
1368                 case OPT_INCLUDE:
1369                         parse_rule(&filter_list, poptGetOptArg(pc),
1370                                    MATCHFLG_INCLUDE, XFLG_OLD_PREFIXES);
1371                         break;
1372
1373                 case OPT_EXCLUDE_FROM:
1374                 case OPT_INCLUDE_FROM:
1375                         arg = poptGetOptArg(pc);
1376                         if (sanitize_paths)
1377                                 arg = sanitize_path(NULL, arg, NULL, 0, SP_DEFAULT);
1378                         if (daemon_filter_list.head) {
1379                                 int rej;
1380                                 char *dir, *cp = strdup(arg);
1381                                 if (!cp)
1382                                         out_of_memory("parse_arguments");
1383                                 if (!*cp)
1384                                         goto options_rejected;
1385                                 dir = cp + (*cp == '/' ? module_dirlen : 0);
1386                                 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
1387                                 rej = check_filter(&daemon_filter_list, FLOG, dir, 0) < 0;
1388                                 free(cp);
1389                                 if (rej)
1390                                         goto options_rejected;
1391                         }
1392                         parse_filter_file(&filter_list, arg,
1393                                 opt == OPT_INCLUDE_FROM ? MATCHFLG_INCLUDE : 0,
1394                                 XFLG_FATAL_ERRORS | XFLG_OLD_PREFIXES);
1395                         break;
1396
1397                 case 'a':
1398                         if (refused_archive_part) {
1399                                 create_refuse_error(refused_archive_part);
1400                                 return 0;
1401                         }
1402                         if (!recurse) /* preserve recurse == 2 */
1403                                 recurse = 1;
1404 #ifdef SUPPORT_LINKS
1405                         preserve_links = 1;
1406 #endif
1407                         preserve_perms = 1;
1408                         preserve_times = 2;
1409                         preserve_gid = 1;
1410                         preserve_uid = 1;
1411                         preserve_devices = 1;
1412                         preserve_specials = 1;
1413                         break;
1414
1415                 case 'D':
1416                         preserve_devices = preserve_specials = 1;
1417                         break;
1418
1419                 case OPT_NO_D:
1420                         preserve_devices = preserve_specials = 0;
1421                         break;
1422
1423                 case 'h':
1424                         human_readable++;
1425                         break;
1426
1427                 case 'H':
1428                         preserve_hard_links++;
1429                         break;
1430
1431                 case 'i':
1432                         itemize_changes++;
1433                         break;
1434
1435                 case 'v':
1436                         verbose++;
1437                         break;
1438
1439                 case 'q':
1440                         quiet++;
1441                         break;
1442
1443                 case 'x':
1444                         one_file_system++;
1445                         break;
1446
1447                 case 'F':
1448                         switch (++F_option_cnt) {
1449                         case 1:
1450                                 parse_rule(&filter_list,": /.rsync-filter",0,0);
1451                                 break;
1452                         case 2:
1453                                 parse_rule(&filter_list,"- .rsync-filter",0,0);
1454                                 break;
1455                         }
1456                         break;
1457
1458                 case 'P':
1459                         if (refused_partial || refused_progress) {
1460                                 create_refuse_error(refused_partial
1461                                     ? refused_partial : refused_progress);
1462                                 return 0;
1463                         }
1464                         do_progress = 1;
1465                         keep_partial = 1;
1466                         break;
1467
1468                 case 'z':
1469                         if (def_compress_level < Z_DEFAULT_COMPRESSION
1470                          || def_compress_level > Z_BEST_COMPRESSION) {
1471                                 snprintf(err_buf, sizeof err_buf,
1472                                         "--compress-level value is invalid: %d\n",
1473                                         def_compress_level);
1474                                 return 0;
1475                         }
1476                         do_compression = def_compress_level != Z_NO_COMPRESSION;
1477                         if (do_compression && refused_compress) {
1478                                 create_refuse_error(refused_compress);
1479                                 return 0;
1480                         }
1481                         break;
1482
1483                 case 'M':
1484                         arg = poptGetOptArg(pc);
1485                         if (*arg != '-') {
1486                                 snprintf(err_buf, sizeof err_buf,
1487                                         "Remote option must start with a dash: %s\n", arg);
1488                                 return 0;
1489                         }
1490                         if (remote_option_cnt+2 >= remote_option_alloc) {
1491                                 remote_option_alloc += 16;
1492                                 remote_options = realloc_array(remote_options,
1493                                                         const char *, remote_option_alloc);
1494                                 if (!remote_options)
1495                                         out_of_memory("parse_arguments");
1496                                 if (!remote_option_cnt)
1497                                         remote_options[0] = "ARG0";
1498                         }
1499                         remote_options[++remote_option_cnt] = arg;
1500                         remote_options[remote_option_cnt+1] = NULL;
1501                         break;
1502
1503                 case OPT_WRITE_BATCH:
1504                         /* batch_name is already set */
1505                         write_batch = 1;
1506                         break;
1507
1508                 case OPT_ONLY_WRITE_BATCH:
1509                         /* batch_name is already set */
1510                         write_batch = -1;
1511                         break;
1512
1513                 case OPT_READ_BATCH:
1514                         /* batch_name is already set */
1515                         read_batch = 1;
1516                         break;
1517
1518                 case OPT_NO_ICONV:
1519 #ifdef ICONV_OPTION
1520                         iconv_opt = NULL;
1521 #endif
1522                         break;
1523
1524                 case OPT_MAX_SIZE:
1525                         if ((max_size = parse_size_arg(&max_size_arg, 'b')) <= 0) {
1526                                 snprintf(err_buf, sizeof err_buf,
1527                                         "--max-size value is invalid: %s\n",
1528                                         max_size_arg);
1529                                 return 0;
1530                         }
1531                         break;
1532
1533                 case OPT_MIN_SIZE:
1534                         if ((min_size = parse_size_arg(&min_size_arg, 'b')) <= 0) {
1535                                 snprintf(err_buf, sizeof err_buf,
1536                                         "--min-size value is invalid: %s\n",
1537                                         min_size_arg);
1538                                 return 0;
1539                         }
1540                         break;
1541
1542                 case OPT_APPEND:
1543                         if (am_server)
1544                                 append_mode++;
1545                         else
1546                                 append_mode = 1;
1547                         break;
1548
1549                 case OPT_LINK_DEST:
1550 #ifdef SUPPORT_HARD_LINKS
1551                         link_dest = 1;
1552                         dest_option = "--link-dest";
1553                         goto set_dest_dir;
1554 #else
1555                         snprintf(err_buf, sizeof err_buf,
1556                                  "hard links are not supported on this %s\n",
1557                                  am_server ? "server" : "client");
1558                         return 0;
1559 #endif
1560
1561                 case OPT_COPY_DEST:
1562                         copy_dest = 1;
1563                         dest_option = "--copy-dest";
1564                         goto set_dest_dir;
1565
1566                 case OPT_COMPARE_DEST:
1567                         compare_dest = 1;
1568                         dest_option = "--compare-dest";
1569                 set_dest_dir:
1570                         if (basis_dir_cnt >= MAX_BASIS_DIRS) {
1571                                 snprintf(err_buf, sizeof err_buf,
1572                                         "ERROR: at most %d %s args may be specified\n",
1573                                         MAX_BASIS_DIRS, dest_option);
1574                                 return 0;
1575                         }
1576                         /* We defer sanitizing this arg until we know what
1577                          * our destination directory is going to be. */
1578                         basis_dir[basis_dir_cnt++] = (char *)poptGetOptArg(pc);
1579                         break;
1580
1581                 case OPT_CHMOD:
1582                         arg = poptGetOptArg(pc);
1583                         if (!parse_chmod(arg, &chmod_modes)) {
1584                                 snprintf(err_buf, sizeof err_buf,
1585                                     "Invalid argument passed to --chmod (%s)\n",
1586                                     arg);
1587                                 return 0;
1588                         }
1589                         break;
1590
1591                 case OPT_INFO:
1592                         arg = poptGetOptArg(pc);
1593                         parse_output_words(info_words, info_levels, arg, USER_PRIORITY);
1594                         break;
1595
1596                 case OPT_DEBUG:
1597                         arg = poptGetOptArg(pc);
1598                         parse_output_words(debug_words, debug_levels, arg, USER_PRIORITY);
1599                         break;
1600
1601                 case OPT_HELP:
1602                         usage(FINFO);
1603                         exit_cleanup(0);
1604
1605                 case 'A':
1606 #ifdef SUPPORT_ACLS
1607                         preserve_acls = 1;
1608                         preserve_perms = 1;
1609                         break;
1610 #else
1611                         /* FIXME: this should probably be ignored with a
1612                          * warning and then countermeasures taken to
1613                          * restrict group and other access in the presence
1614                          * of any more restrictive ACLs, but this is safe
1615                          * for now */
1616                         snprintf(err_buf,sizeof(err_buf),
1617                                  "ACLs are not supported on this %s\n",
1618                                  am_server ? "server" : "client");
1619                         return 0;
1620 #endif
1621
1622                 case 'X':
1623 #ifdef SUPPORT_XATTRS
1624                         preserve_xattrs++;
1625                         break;
1626 #else
1627                         snprintf(err_buf,sizeof(err_buf),
1628                                  "extended attributes are not supported on this %s\n",
1629                                  am_server ? "server" : "client");
1630                         return 0;
1631 #endif
1632
1633                 default:
1634                         /* A large opt value means that set_refuse_options()
1635                          * turned this option off. */
1636                         if (opt >= OPT_REFUSED_BASE) {
1637                                 create_refuse_error(opt);
1638                                 return 0;
1639                         }
1640                         snprintf(err_buf, sizeof err_buf, "%s%s: %s\n",
1641                                  am_server ? "on remote machine: " : "",
1642                                  poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1643                                  poptStrerror(opt));
1644                         return 0;
1645                 }
1646         }
1647
1648         if (human_readable && argc == 2 && !am_server) {
1649                 /* Allow the old meaning of 'h' (--help) on its own. */
1650                 usage(FINFO);
1651                 exit_cleanup(0);
1652         }
1653
1654         set_output_verbosity(verbose, DEFAULT_PRIORITY);
1655
1656         if (do_stats && !am_server) {
1657                 parse_output_words(info_words, info_levels,
1658                         verbose > 1 ? "stats3" : "stats2", DEFAULT_PRIORITY);
1659         }
1660
1661 #ifdef ICONV_OPTION
1662         if (iconv_opt && protect_args != 2) {
1663                 if (!am_server && strcmp(iconv_opt, "-") == 0)
1664                         iconv_opt = NULL;
1665                 else
1666                         need_unsorted_flist = 1;
1667         }
1668         if (refused_no_iconv && !iconv_opt) {
1669                 create_refuse_error(refused_no_iconv);
1670                 return 0;
1671         }
1672 #endif
1673
1674         if (protect_args == 1 && am_server)
1675                 return 1;
1676
1677         *argv_p = argv = poptGetArgs(pc);
1678         *argc_p = argc = count_args(argv);
1679
1680 #ifndef SUPPORT_LINKS
1681         if (preserve_links && !am_sender) {
1682                 snprintf(err_buf, sizeof err_buf,
1683                          "symlinks are not supported on this %s\n",
1684                          am_server ? "server" : "client");
1685                 return 0;
1686         }
1687 #endif
1688
1689 #ifndef SUPPORT_HARD_LINKS
1690         if (preserve_hard_links) {
1691                 snprintf(err_buf, sizeof err_buf,
1692                          "hard links are not supported on this %s\n",
1693                          am_server ? "server" : "client");
1694                 return 0;
1695         }
1696 #endif
1697
1698 #ifdef SUPPORT_XATTRS
1699         if (am_root < 0 && preserve_xattrs > 1) {
1700                 snprintf(err_buf, sizeof err_buf,
1701                          "--fake-super conflicts with -XX\n");
1702                 return 0;
1703         }
1704 #else
1705         if (am_root < 0) {
1706                 snprintf(err_buf, sizeof err_buf,
1707                          "--fake-super requires an rsync with extended attributes enabled\n");
1708                 return 0;
1709         }
1710 #endif
1711
1712         if (write_batch && read_batch) {
1713                 snprintf(err_buf, sizeof err_buf,
1714                         "--write-batch and --read-batch can not be used together\n");
1715                 return 0;
1716         }
1717         if (write_batch > 0 || read_batch) {
1718                 if (am_server) {
1719                         rprintf(FINFO,
1720                                 "ignoring --%s-batch option sent to server\n",
1721                                 write_batch ? "write" : "read");
1722                         /* We don't actually exit_cleanup(), so that we can
1723                          * still service older version clients that still send
1724                          * batch args to server. */
1725                         read_batch = write_batch = 0;
1726                         batch_name = NULL;
1727                 } else if (dry_run)
1728                         write_batch = 0;
1729         } else if (write_batch < 0 && dry_run)
1730                 write_batch = 0;
1731         if (read_batch && files_from) {
1732                 snprintf(err_buf, sizeof err_buf,
1733                         "--read-batch cannot be used with --files-from\n");
1734                 return 0;
1735         }
1736         if (batch_name && strlen(batch_name) > MAX_BATCH_NAME_LEN) {
1737                 snprintf(err_buf, sizeof err_buf,
1738                         "the batch-file name must be %d characters or less.\n",
1739                         MAX_BATCH_NAME_LEN);
1740                 return 0;
1741         }
1742
1743         if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
1744                 snprintf(err_buf, sizeof err_buf,
1745                          "the --temp-dir path is WAY too long.\n");
1746                 return 0;
1747         }
1748
1749         if (max_delete < 0 && max_delete != INT_MIN) {
1750                 /* Negative numbers are treated as "no deletions". */
1751                 max_delete = 0;
1752         }
1753
1754         if (compare_dest + copy_dest + link_dest > 1) {
1755                 snprintf(err_buf, sizeof err_buf,
1756                         "You may not mix --compare-dest, --copy-dest, and --link-dest.\n");
1757                 return 0;
1758         }
1759
1760         if (files_from) {
1761                 if (recurse == 1) /* preserve recurse == 2 */
1762                         recurse = 0;
1763                 if (xfer_dirs < 0)
1764                         xfer_dirs = 1;
1765         }
1766
1767         if (argc < 2 && !read_batch && !am_server)
1768                 list_only |= 1;
1769
1770         if (xfer_dirs >= 4) {
1771                 parse_rule(&filter_list, "- /*/*", 0, 0);
1772                 recurse = xfer_dirs = 1;
1773         } else if (recurse)
1774                 xfer_dirs = 1;
1775         else if (xfer_dirs < 0)
1776                 xfer_dirs = list_only ? 1 : 0;
1777
1778         if (relative_paths < 0)
1779                 relative_paths = files_from? 1 : 0;
1780         if (!relative_paths)
1781                 implied_dirs = 0;
1782
1783         if (delete_before + !!delete_during + delete_after > 1) {
1784                 snprintf(err_buf, sizeof err_buf,
1785                         "You may not combine multiple --delete-WHEN options.\n");
1786                 return 0;
1787         }
1788         if (delete_before || delete_during || delete_after)
1789                 delete_mode = 1;
1790         else if (delete_mode || delete_excluded) {
1791                 /* Only choose now between before & during if one is refused. */
1792                 if (refused_delete_before) {
1793                         if (!refused_delete_during)
1794                                 delete_during = 1;
1795                         else {
1796                                 create_refuse_error(refused_delete_before);
1797                                 return 0;
1798                         }
1799                 } else if (refused_delete_during)
1800                         delete_before = 1;
1801                 delete_mode = 1;
1802         }
1803         if (!xfer_dirs && delete_mode) {
1804                 snprintf(err_buf, sizeof err_buf,
1805                         "--delete does not work without -r or -d.\n");
1806                 return 0;
1807         }
1808
1809         if (delete_mode && refused_delete) {
1810                 create_refuse_error(refused_delete);
1811                 return 0;
1812         }
1813
1814         if (remove_source_files) {
1815                 /* We only want to infer this refusal of --remove-source-files
1816                  * via the refusal of "delete", not any of the "delete-FOO"
1817                  * options. */
1818                 if (refused_delete && am_sender) {
1819                         create_refuse_error(refused_delete);
1820                         return 0;
1821                 }
1822                 need_messages_from_generator = 1;
1823         }
1824
1825         if (sanitize_paths) {
1826                 int i;
1827                 for (i = argc; i-- > 0; )
1828                         argv[i] = sanitize_path(NULL, argv[i], "", 0, SP_KEEP_DOT_DIRS);
1829                 if (tmpdir)
1830                         tmpdir = sanitize_path(NULL, tmpdir, NULL, 0, SP_DEFAULT);
1831                 if (backup_dir)
1832                         backup_dir = sanitize_path(NULL, backup_dir, NULL, 0, SP_DEFAULT);
1833         }
1834         if (daemon_filter_list.head && !am_sender) {
1835                 struct filter_list_struct *elp = &daemon_filter_list;
1836                 if (tmpdir) {
1837                         char *dir;
1838                         if (!*tmpdir)
1839                                 goto options_rejected;
1840                         dir = tmpdir + (*tmpdir == '/' ? module_dirlen : 0);
1841                         clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
1842                         if (check_filter(elp, FLOG, dir, 1) < 0)
1843                                 goto options_rejected;
1844                 }
1845                 if (backup_dir) {
1846                         char *dir;
1847                         if (!*backup_dir)
1848                                 goto options_rejected;
1849                         dir = backup_dir + (*backup_dir == '/' ? module_dirlen : 0);
1850                         clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
1851                         if (check_filter(elp, FLOG, dir, 1) < 0)
1852                                 goto options_rejected;
1853                 }
1854         }
1855
1856         if (!backup_suffix)
1857                 backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
1858         backup_suffix_len = strlen(backup_suffix);
1859         if (strchr(backup_suffix, '/') != NULL) {
1860                 snprintf(err_buf, sizeof err_buf,
1861                         "--suffix cannot contain slashes: %s\n",
1862                         backup_suffix);
1863                 return 0;
1864         }
1865         if (backup_dir) {
1866                 backup_dir_len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
1867                 backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
1868                 if (backup_dir_remainder < 32) {
1869                         snprintf(err_buf, sizeof err_buf,
1870                                 "the --backup-dir path is WAY too long.\n");
1871                         return 0;
1872                 }
1873                 if (backup_dir_buf[backup_dir_len - 1] != '/') {
1874                         backup_dir_buf[backup_dir_len++] = '/';
1875                         backup_dir_buf[backup_dir_len] = '\0';
1876                 }
1877                 if (INFO_GTE(BACKUP, 1) && !am_sender)
1878                         rprintf(FINFO, "backup_dir is %s\n", backup_dir_buf);
1879         } else if (!backup_suffix_len && (!am_server || !am_sender)) {
1880                 snprintf(err_buf, sizeof err_buf,
1881                         "--suffix cannot be a null string without --backup-dir\n");
1882                 return 0;
1883         } else if (make_backups && delete_mode && !delete_excluded && !am_server) {
1884                 snprintf(backup_dir_buf, sizeof backup_dir_buf,
1885                         "P *%s", backup_suffix);
1886                 parse_rule(&filter_list, backup_dir_buf, 0, 0);
1887         }
1888
1889         if (make_backups && !backup_dir) {
1890                 omit_dir_times = 0; /* Implied, so avoid -O to sender. */
1891                 if (preserve_times > 1)
1892                         preserve_times = 1;
1893         } else if (omit_dir_times) {
1894                 if (preserve_times > 1)
1895                         preserve_times = 1;
1896         }
1897
1898         if (stdout_format) {
1899                 if (am_server && log_format_has(stdout_format, 'I'))
1900                         stdout_format_has_i = 2;
1901                 else if (log_format_has(stdout_format, 'i'))
1902                         stdout_format_has_i = itemize_changes | 1;
1903                 if (!log_format_has(stdout_format, 'b')
1904                  && !log_format_has(stdout_format, 'c')
1905                  && !log_format_has(stdout_format, 'C'))
1906                         log_before_transfer = !am_server;
1907         } else if (itemize_changes) {
1908                 stdout_format = "%i %n%L";
1909                 stdout_format_has_i = itemize_changes;
1910                 log_before_transfer = !am_server;
1911         }
1912
1913         if (do_progress && !am_server) {
1914                 if (!log_before_transfer && INFO_EQ(NAME, 0))
1915                         parse_output_words(info_words, info_levels, "name", DEFAULT_PRIORITY);
1916                 parse_output_words(info_words, info_levels, "flist2,progress", DEFAULT_PRIORITY);
1917         }
1918
1919         if (dry_run)
1920                 do_xfers = 0;
1921
1922         set_io_timeout(io_timeout);
1923
1924         if (INFO_GTE(NAME, 1) && !stdout_format) {
1925                 stdout_format = "%n%L";
1926                 log_before_transfer = !am_server;
1927         }
1928         if (stdout_format_has_i || log_format_has(stdout_format, 'o'))
1929                 stdout_format_has_o_or_i = 1;
1930
1931         if (logfile_name && !am_daemon) {
1932                 if (!logfile_format) {
1933                         logfile_format = "%i %n%L";
1934                         logfile_format_has_i = logfile_format_has_o_or_i = 1;
1935                 } else {
1936                         if (log_format_has(logfile_format, 'i'))
1937                                 logfile_format_has_i = 1;
1938                         if (logfile_format_has_i || log_format_has(logfile_format, 'o'))
1939                                 logfile_format_has_o_or_i = 1;
1940                 }
1941                 log_init(0);
1942         } else if (!am_daemon)
1943                 logfile_format = NULL;
1944
1945         if (daemon_bwlimit && (!bwlimit || bwlimit > daemon_bwlimit))
1946                 bwlimit = daemon_bwlimit;
1947         if (bwlimit) {
1948                 bwlimit_writemax = (size_t)bwlimit * 128;
1949                 if (bwlimit_writemax < 512)
1950                         bwlimit_writemax = 512;
1951         }
1952
1953         if (sparse_files && inplace) {
1954                 /* Note: we don't check for this below, because --append is
1955                  * OK with --sparse (as long as redos are handled right). */
1956                 snprintf(err_buf, sizeof err_buf,
1957                          "--sparse cannot be used with --inplace\n");
1958                 return 0;
1959         }
1960
1961         if (append_mode) {
1962                 if (whole_file > 0) {
1963                         snprintf(err_buf, sizeof err_buf,
1964                                  "--append cannot be used with --whole-file\n");
1965                         return 0;
1966                 }
1967                 if (refused_inplace) {
1968                         create_refuse_error(refused_inplace);
1969                         return 0;
1970                 }
1971                 inplace = 1;
1972         }
1973
1974         if (delay_updates && !partial_dir)
1975                 partial_dir = tmp_partialdir;
1976
1977         if (inplace) {
1978 #ifdef HAVE_FTRUNCATE
1979                 if (partial_dir) {
1980                         snprintf(err_buf, sizeof err_buf,
1981                                  "--%s cannot be used with --%s\n",
1982                                  append_mode ? "append" : "inplace",
1983                                  delay_updates ? "delay-updates" : "partial-dir");
1984                         return 0;
1985                 }
1986                 /* --inplace implies --partial for refusal purposes, but we
1987                  * clear the keep_partial flag for internal logic purposes. */
1988                 if (refused_partial) {
1989                         create_refuse_error(refused_partial);
1990                         return 0;
1991                 }
1992                 keep_partial = 0;
1993 #else
1994                 snprintf(err_buf, sizeof err_buf,
1995                          "--%s is not supported on this %s\n",
1996                          append_mode ? "append" : "inplace",
1997                          am_server ? "server" : "client");
1998                 return 0;
1999 #endif
2000         } else {
2001                 if (keep_partial && !partial_dir && !am_server) {
2002                         if ((arg = getenv("RSYNC_PARTIAL_DIR")) != NULL && *arg)
2003                                 partial_dir = strdup(arg);
2004                 }
2005                 if (partial_dir) {
2006                         if (*partial_dir)
2007                                 clean_fname(partial_dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2008                         if (!*partial_dir || strcmp(partial_dir, ".") == 0)
2009                                 partial_dir = NULL;
2010                         if (!partial_dir && refused_partial) {
2011                                 create_refuse_error(refused_partial);
2012                                 return 0;
2013                         }
2014                         keep_partial = 1;
2015                 }
2016         }
2017
2018         if (files_from) {
2019                 char *h, *p;
2020                 int q;
2021                 if (argc > 2 || (!am_daemon && argc == 1)) {
2022                         usage(FERROR);
2023                         exit_cleanup(RERR_SYNTAX);
2024                 }
2025                 if (strcmp(files_from, "-") == 0) {
2026                         filesfrom_fd = 0;
2027                         if (am_server)
2028                                 filesfrom_host = ""; /* reading from socket */
2029                 } else if ((p = check_for_hostspec(files_from, &h, &q)) != 0) {
2030                         if (am_server) {
2031                                 snprintf(err_buf, sizeof err_buf,
2032                                         "The --files-from sent to the server cannot specify a host.\n");
2033                                 return 0;
2034                         }
2035                         files_from = p;
2036                         filesfrom_host = h;
2037                         if (strcmp(files_from, "-") == 0) {
2038                                 snprintf(err_buf, sizeof err_buf,
2039                                         "Invalid --files-from remote filename\n");
2040                                 return 0;
2041                         }
2042                 } else {
2043                         if (sanitize_paths)
2044                                 files_from = sanitize_path(NULL, files_from, NULL, 0, SP_DEFAULT);
2045                         if (daemon_filter_list.head) {
2046                                 char *dir;
2047                                 if (!*files_from)
2048                                         goto options_rejected;
2049                                 dir = files_from + (*files_from == '/' ? module_dirlen : 0);
2050                                 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2051                                 if (check_filter(&daemon_filter_list, FLOG, dir, 0) < 0)
2052                                         goto options_rejected;
2053                         }
2054                         filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
2055                         if (filesfrom_fd < 0) {
2056                                 snprintf(err_buf, sizeof err_buf,
2057                                         "failed to open files-from file %s: %s\n",
2058                                         files_from, strerror(errno));
2059                                 return 0;
2060                         }
2061                 }
2062         }
2063
2064         am_starting_up = 0;
2065
2066         return 1;
2067
2068   options_rejected:
2069         snprintf(err_buf, sizeof err_buf,
2070                 "Your options have been rejected by the server.\n");
2071         return 0;
2072 }
2073
2074
2075 /**
2076  * Construct a filtered list of options to pass through from the
2077  * client to the server.
2078  *
2079  * This involves setting options that will tell the server how to
2080  * behave, and also filtering out options that are processed only
2081  * locally.
2082  **/
2083 void server_options(char **args, int *argc_p)
2084 {
2085         static char argstr[64];
2086         int ac = *argc_p;
2087         uchar where;
2088         char *arg;
2089         int i, x;
2090
2091         /* This should always remain first on the server's command-line. */
2092         args[ac++] = "--server";
2093
2094         if (daemon_over_rsh > 0) {
2095                 args[ac++] = "--daemon";
2096                 *argc_p = ac;
2097                 /* if we're passing --daemon, we're done */
2098                 return;
2099         }
2100
2101         if (!am_sender)
2102                 args[ac++] = "--sender";
2103
2104         x = 1;
2105         argstr[0] = '-';
2106
2107         if (protect_args)
2108                 argstr[x++] = 's';
2109
2110         for (i = 0; i < verbose; i++)
2111                 argstr[x++] = 'v';
2112
2113         /* the -q option is intentionally left out */
2114         if (make_backups)
2115                 argstr[x++] = 'b';
2116         if (update_only)
2117                 argstr[x++] = 'u';
2118         if (!do_xfers) /* Note: NOT "dry_run"! */
2119                 argstr[x++] = 'n';
2120         if (preserve_links)
2121                 argstr[x++] = 'l';
2122         if ((xfer_dirs >= 2 && xfer_dirs < 4)
2123          || (xfer_dirs && !recurse && (list_only || (delete_mode && am_sender))))
2124                 argstr[x++] = 'd';
2125         if (am_sender) {
2126                 if (keep_dirlinks)
2127                         argstr[x++] = 'K';
2128                 if (prune_empty_dirs)
2129                         argstr[x++] = 'm';
2130                 if (omit_dir_times)
2131                         argstr[x++] = 'O';
2132         } else {
2133                 if (copy_links)
2134                         argstr[x++] = 'L';
2135                 if (copy_dirlinks)
2136                         argstr[x++] = 'k';
2137         }
2138
2139         if (whole_file > 0)
2140                 argstr[x++] = 'W';
2141         /* We don't need to send --no-whole-file, because it's the
2142          * default for remote transfers, and in any case old versions
2143          * of rsync will not understand it. */
2144
2145         if (preserve_hard_links) {
2146                 argstr[x++] = 'H';
2147                 if (preserve_hard_links > 1)
2148                         argstr[x++] = 'H';
2149         }
2150         if (preserve_uid)
2151                 argstr[x++] = 'o';
2152         if (preserve_gid)
2153                 argstr[x++] = 'g';
2154         if (preserve_devices) /* ignore preserve_specials here */
2155                 argstr[x++] = 'D';
2156         if (preserve_times)
2157                 argstr[x++] = 't';
2158         if (preserve_perms)
2159                 argstr[x++] = 'p';
2160         else if (preserve_executability && am_sender)
2161                 argstr[x++] = 'E';
2162 #ifdef SUPPORT_ACLS
2163         if (preserve_acls)
2164                 argstr[x++] = 'A';
2165 #endif
2166 #ifdef SUPPORT_XATTRS
2167         if (preserve_xattrs) {
2168                 argstr[x++] = 'X';
2169                 if (preserve_xattrs > 1)
2170                         argstr[x++] = 'X';
2171         }
2172 #endif
2173         if (recurse)
2174                 argstr[x++] = 'r';
2175         if (always_checksum)
2176                 argstr[x++] = 'c';
2177         if (cvs_exclude)
2178                 argstr[x++] = 'C';
2179         if (ignore_times)
2180                 argstr[x++] = 'I';
2181         if (relative_paths)
2182                 argstr[x++] = 'R';
2183         if (one_file_system) {
2184                 argstr[x++] = 'x';
2185                 if (one_file_system > 1)
2186                         argstr[x++] = 'x';
2187         }
2188         if (sparse_files)
2189                 argstr[x++] = 'S';
2190         if (do_compression)
2191                 argstr[x++] = 'z';
2192
2193         set_allow_inc_recurse();
2194
2195         /* Checking the pre-negotiated value allows --protocol=29 override. */
2196         if (protocol_version >= 30) {
2197                 /* We make use of the -e option to let the server know about
2198                  * any pre-release protocol version && some behavior flags. */
2199                 argstr[x++] = 'e';
2200 #if SUBPROTOCOL_VERSION != 0
2201                 if (protocol_version == PROTOCOL_VERSION) {
2202                         x += snprintf(argstr+x, sizeof argstr - x,
2203                                       "%d.%d",
2204                                       PROTOCOL_VERSION, SUBPROTOCOL_VERSION);
2205                 } else
2206 #endif
2207                         argstr[x++] = '.';
2208                 if (allow_inc_recurse)
2209                         argstr[x++] = 'i';
2210 #if defined HAVE_LUTIMES && defined HAVE_UTIMES
2211                 argstr[x++] = 'L';
2212 #endif
2213         }
2214
2215         if (x >= (int)sizeof argstr) { /* Not possible... */
2216                 rprintf(FERROR, "argstr overflow in server_options().\n");
2217                 exit_cleanup(RERR_MALLOC);
2218         }
2219
2220         argstr[x] = '\0';
2221
2222         args[ac++] = argstr;
2223
2224 #ifdef ICONV_OPTION
2225         if (iconv_opt) {
2226                 char *set = strchr(iconv_opt, ',');
2227                 if (set)
2228                         set++;
2229                 else
2230                         set = iconv_opt;
2231                 if (asprintf(&arg, "--iconv=%s", set) < 0)
2232                         goto oom;
2233                 args[ac++] = arg;
2234         }
2235 #endif
2236
2237         if (protect_args && !local_server) /* unprotected args stop here */
2238                 args[ac++] = NULL;
2239
2240         if (list_only > 1)
2241                 args[ac++] = "--list-only";
2242
2243         /* This makes sure that the remote rsync can handle deleting with -d
2244          * sans -r because the --no-r option was added at the same time. */
2245         if (xfer_dirs && !recurse && delete_mode && am_sender)
2246                 args[ac++] = "--no-r";
2247
2248         if (do_compression && def_compress_level != Z_DEFAULT_COMPRESSION) {
2249                 if (asprintf(&arg, "--compress-level=%d", def_compress_level) < 0)
2250                         goto oom;
2251                 args[ac++] = arg;
2252         }
2253
2254         if (preserve_devices) {
2255                 /* Note: sending "--devices" would not be backward-compatible. */
2256                 if (!preserve_specials)
2257                         args[ac++] = "--no-specials"; /* -D is already set. */
2258         } else if (preserve_specials)
2259                 args[ac++] = "--specials";
2260
2261         /* The server side doesn't use our log-format, but in certain
2262          * circumstances they need to know a little about the option. */
2263         if (stdout_format && am_sender) {
2264                 /* Use --log-format, not --out-format, for compatibility. */
2265                 if (stdout_format_has_i > 1)
2266                         args[ac++] = "--log-format=%i%I";
2267                 else if (stdout_format_has_i)
2268                         args[ac++] = "--log-format=%i";
2269                 else if (stdout_format_has_o_or_i)
2270                         args[ac++] = "--log-format=%o";
2271                 else if (!verbose)
2272                         args[ac++] = "--log-format=X";
2273         }
2274
2275         if (block_size) {
2276                 if (asprintf(&arg, "-B%lu", block_size) < 0)
2277                         goto oom;
2278                 args[ac++] = arg;
2279         }
2280
2281         if (io_timeout) {
2282                 if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
2283                         goto oom;
2284                 args[ac++] = arg;
2285         }
2286
2287         if (bwlimit) {
2288                 if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
2289                         goto oom;
2290                 args[ac++] = arg;
2291         }
2292
2293         if (backup_dir) {
2294                 args[ac++] = "--backup-dir";
2295                 args[ac++] = backup_dir;
2296         }
2297
2298         /* Only send --suffix if it specifies a non-default value. */
2299         if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
2300                 /* We use the following syntax to avoid weirdness with '~'. */
2301                 if (asprintf(&arg, "--suffix=%s", backup_suffix) < 0)
2302                         goto oom;
2303                 args[ac++] = arg;
2304         }
2305
2306         if (am_sender) {
2307                 if (max_delete > 0) {
2308                         if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
2309                                 goto oom;
2310                         args[ac++] = arg;
2311                 } else if (max_delete == 0)
2312                         args[ac++] = "--max-delete=-1";
2313                 if (min_size) {
2314                         args[ac++] = "--min-size";
2315                         args[ac++] = min_size_arg;
2316                 }
2317                 if (max_size) {
2318                         args[ac++] = "--max-size";
2319                         args[ac++] = max_size_arg;
2320                 }
2321                 if (delete_before)
2322                         args[ac++] = "--delete-before";
2323                 else if (delete_during == 2)
2324                         args[ac++] = "--delete-delay";
2325                 else if (delete_during)
2326                         args[ac++] = "--delete-during";
2327                 else if (delete_after)
2328                         args[ac++] = "--delete-after";
2329                 else if (delete_mode && !delete_excluded)
2330                         args[ac++] = "--delete";
2331                 if (delete_excluded)
2332                         args[ac++] = "--delete-excluded";
2333                 if (force_delete)
2334                         args[ac++] = "--force";
2335                 if (write_batch < 0)
2336                         args[ac++] = "--only-write-batch=X";
2337                 if (am_root > 1)
2338                         args[ac++] = "--super";
2339                 if (size_only)
2340                         args[ac++] = "--size-only";
2341         } else {
2342                 if (skip_compress) {
2343                         if (asprintf(&arg, "--skip-compress=%s", skip_compress) < 0)
2344                                 goto oom;
2345                         args[ac++] = arg;
2346                 }
2347         }
2348
2349         if (modify_window_set) {
2350                 if (asprintf(&arg, "--modify-window=%d", modify_window) < 0)
2351                         goto oom;
2352                 args[ac++] = arg;
2353         }
2354
2355         if (checksum_seed) {
2356                 if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
2357                         goto oom;
2358                 args[ac++] = arg;
2359         }
2360
2361         if (partial_dir && am_sender) {
2362                 if (partial_dir != tmp_partialdir) {
2363                         args[ac++] = "--partial-dir";
2364                         args[ac++] = partial_dir;
2365                 }
2366                 if (delay_updates)
2367                         args[ac++] = "--delay-updates";
2368         } else if (keep_partial && am_sender)
2369                 args[ac++] = "--partial";
2370
2371         if (ignore_errors)
2372                 args[ac++] = "--ignore-errors";
2373
2374         if (copy_unsafe_links)
2375                 args[ac++] = "--copy-unsafe-links";
2376
2377         if (safe_symlinks)
2378                 args[ac++] = "--safe-links";
2379
2380         if (numeric_ids)
2381                 args[ac++] = "--numeric-ids";
2382
2383         if (use_qsort)
2384                 args[ac++] = "--use-qsort";
2385
2386         if (am_sender) {
2387                 if (ignore_existing)
2388                         args[ac++] = "--ignore-existing";
2389
2390                 /* Backward compatibility: send --existing, not --ignore-non-existing. */
2391                 if (ignore_non_existing)
2392                         args[ac++] = "--existing";
2393
2394                 if (tmpdir) {
2395                         args[ac++] = "--temp-dir";
2396                         args[ac++] = tmpdir;
2397                 }
2398
2399                 if (basis_dir[0]) {
2400                         /* the server only needs this option if it is not the sender,
2401                          *   and it may be an older version that doesn't know this
2402                          *   option, so don't send it if client is the sender.
2403                          */
2404                         for (i = 0; i < basis_dir_cnt; i++) {
2405                                 args[ac++] = dest_option;
2406                                 args[ac++] = basis_dir[i];
2407                         }
2408                 }
2409         }
2410
2411         /* What flags do we need to send to the other side? */
2412         where = (am_server ? W_CLI : W_SRV) | (am_sender ? W_REC : W_SND);
2413         arg = make_output_option(info_words, info_levels, where);
2414         if (arg)
2415                 args[ac++] = arg;
2416
2417         arg = make_output_option(debug_words, debug_levels, where);
2418         if (arg)
2419                 args[ac++] = arg;
2420
2421         if (append_mode) {
2422                 if (append_mode > 1)
2423                         args[ac++] = "--append";
2424                 args[ac++] = "--append";
2425         } else if (inplace)
2426                 args[ac++] = "--inplace";
2427
2428         if (files_from && (!am_sender || filesfrom_host)) {
2429                 if (filesfrom_host) {
2430                         args[ac++] = "--files-from";
2431                         args[ac++] = files_from;
2432                         if (eol_nulls)
2433                                 args[ac++] = "--from0";
2434                 } else {
2435                         args[ac++] = "--files-from=-";
2436                         args[ac++] = "--from0";
2437                 }
2438                 if (!relative_paths)
2439                         args[ac++] = "--no-relative";
2440         }
2441         /* It's OK that this checks the upper-bound of the protocol_version. */
2442         if (relative_paths && !implied_dirs && (!am_sender || protocol_version >= 30))
2443                 args[ac++] = "--no-implied-dirs";
2444
2445         if (fuzzy_basis && am_sender)
2446                 args[ac++] = "--fuzzy";
2447
2448         if (remove_source_files == 1)
2449                 args[ac++] = "--remove-source-files";
2450         else if (remove_source_files)
2451                 args[ac++] = "--remove-sent-files";
2452
2453         if (ac > MAX_SERVER_ARGS) { /* Not possible... */
2454                 rprintf(FERROR, "argc overflow in server_options().\n");
2455                 exit_cleanup(RERR_MALLOC);
2456         }
2457
2458         if (remote_option_cnt) {
2459                 int j;
2460                 if (ac + remote_option_cnt > MAX_SERVER_ARGS) {
2461                         rprintf(FERROR, "too many remote options specified.\n");
2462                         exit_cleanup(RERR_SYNTAX);
2463                 }
2464                 for (j = 1; j <= remote_option_cnt; j++)
2465                         args[ac++] = (char*)remote_options[j];
2466         }
2467
2468         *argc_p = ac;
2469         return;
2470
2471     oom:
2472         out_of_memory("server_options");
2473 }
2474
2475 /* Look for a HOST specfication of the form "HOST:PATH", "HOST::PATH", or
2476  * "rsync://HOST:PORT/PATH".  If found, *host_ptr will be set to some allocated
2477  * memory with the HOST.  If a daemon-accessing spec was specified, the value
2478  * of *port_ptr will contain a non-0 port number, otherwise it will be set to
2479  * 0.  The return value is a pointer to the PATH.  Note that the HOST spec can
2480  * be an IPv6 literal address enclosed in '[' and ']' (such as "[::1]" or
2481  * "[::ffff:127.0.0.1]") which is returned without the '[' and ']'. */
2482 char *check_for_hostspec(char *s, char **host_ptr, int *port_ptr)
2483 {
2484         char *p;
2485         int not_host;
2486         int hostlen;
2487
2488         if (port_ptr && strncasecmp(URL_PREFIX, s, strlen(URL_PREFIX)) == 0) {
2489                 char *path;
2490                 s += strlen(URL_PREFIX);
2491                 if ((p = strchr(s, '/')) != NULL) {
2492                         hostlen = p - s;
2493                         path = p + 1;
2494                 } else {
2495                         hostlen = strlen(s);
2496                         path = "";
2497                 }
2498                 if (*s == '[' && (p = strchr(s, ']')) != NULL) {
2499                         s++;
2500                         hostlen = p - s;
2501                         if (p[1] == ':')
2502                                 *port_ptr = atoi(p+2);
2503                 } else {
2504                         if ((p = strchr(s, ':')) != NULL && p < s + hostlen) {
2505                                 hostlen = p - s;
2506                                 *port_ptr = atoi(p+1);
2507                         }
2508                 }
2509                 if (!*port_ptr)
2510                         *port_ptr = RSYNC_PORT;
2511                 *host_ptr = new_array(char, hostlen + 1);
2512                 strlcpy(*host_ptr, s, hostlen + 1);
2513                 return path;
2514         }
2515
2516         if (*s == '[' && (p = strchr(s, ']')) != NULL && p[1] == ':') {
2517                 s++;
2518                 hostlen = p - s;
2519                 *p = '\0';
2520                 not_host = strchr(s, '/') || !strchr(s, ':');
2521                 *p = ']';
2522                 if (not_host)
2523                         return NULL;
2524                 p++;
2525         } else {
2526                 if (!(p = strchr(s, ':')))
2527                         return NULL;
2528                 hostlen = p - s;
2529                 *p = '\0';
2530                 not_host = strchr(s, '/') != NULL;
2531                 *p = ':';
2532                 if (not_host)
2533                         return NULL;
2534         }
2535
2536         *host_ptr = new_array(char, hostlen + 1);
2537         strlcpy(*host_ptr, s, hostlen + 1);
2538
2539         if (p[1] == ':') {
2540                 if (port_ptr && !*port_ptr)
2541                         *port_ptr = RSYNC_PORT;
2542                 return p + 2;
2543         }
2544         if (port_ptr)
2545                 *port_ptr = 0;
2546
2547         return p + 1;
2548 }