options.c

   1 /*  -*- c-file-style: "linux" -*-
   2
   3     Copyright (C) 1998-2001 by Andrew Tridgell <tridge@samba.org>
   4     Copyright (C) 2000, 2001, 2002 by Martin Pool <mbp@samba.org>
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include "rsync.h"
  22 #include "popt.h"
  23
  24 int make_backups = 0;
  25 int whole_file = -1;
  26 int copy_links = 0;
  27 int preserve_links = 0;
  28 int preserve_hard_links = 0;
  29 int preserve_perms = 0;
  30 int preserve_devices = 0;
  31 int preserve_uid = 0;
  32 int preserve_gid = 0;
  33 int preserve_times = 0;
  34 int update_only = 0;
  35 int cvs_exclude = 0;
  36 int dry_run=0;
  37 int local_server=0;
  38 int ignore_times=0;
  39 int delete_mode=0;
  40 int delete_excluded=0;
  41 int one_file_system=0;
  42 int remote_version=0;
  43 int sparse_files=0;
  44 int do_compression=0;
  45 int am_root=0;
  46 int orig_umask=0;
  47 int relative_paths=0;
  48 int numeric_ids = 0;
  49 int force_delete = 0;
  50 int io_timeout = 0;
  51 int io_error = 0;
  52 int read_only = 0;
  53 int module_id = -1;
  54 int am_server = 0;
  55 int am_sender = 0;
  56 int recurse = 0;
  57 int am_daemon=0;
  58 int do_stats=0;
  59 int do_progress=0;
  60 int keep_partial=0;
  61 int safe_symlinks=0;
  62 int copy_unsafe_links=0;
  63 int block_size=BLOCK_SIZE;
  64 int size_only=0;
  65 int bwlimit=0;
  66 int delete_after=0;
  67 int only_existing=0;
  68 int opt_ignore_existing=0;
  69 int max_delete=0;
  70 int ignore_errors=0;
  71 #ifdef _WIN32
  72 int modify_window=2;
  73 #else
  74 int modify_window=0;
  75 #endif
  76 int blocking_io=-1;
  77
  78 /** Network address family. **/
  79 #ifdef INET6
  80 int default_af_hint = 0;        /* Any protocol */
  81 #else
  82 int default_af_hint = AF_INET;  /* Must use IPv4 */
  83 #endif
  84
  85 /** Do not go into the background when run as --daemon.  Good
  86  * for debugging and required for running as a service on W32,
  87  * or under Unix process-monitors. **/
  88 int no_detach = 0;
  89
  90 int write_batch = 0;
  91 int read_batch = 0;
  92
  93 char *backup_suffix = BACKUP_SUFFIX;
  94 char *tmpdir = NULL;
  95 char *compare_dest = NULL;
  96 char *config_file = RSYNCD_CONF;
  97 char *shell_cmd = NULL;
  98 char *log_format = NULL;
  99 char *password_file = NULL;
 100 char *rsync_path = RSYNC_PATH;
 101 char *backup_dir = NULL;
 102 int rsync_port = RSYNC_PORT;
 103
 104 int verbose = 0;
 105 int quiet = 0;
 106 int always_checksum = 0;
 107 int list_only = 0;
 108
 109 char *batch_prefix = NULL;
 110
 111 static int modify_window_set;
 112
 113 /** Local address to bind.  As a character string because it's
 114  * interpreted by the IPv6 layer: should be a numeric IP4 or ip6
 115  * address, or a hostname. **/
 116 char *bind_address;
 117
 118
 119 static void print_rsync_version(enum logcode f)
 120 {
 121         char const *got_socketpair = "no ";
 122         char const *hardlinks = "no ";
 123         char const *links = "no ";
 124         char const *ipv6 = "no ";
 125         STRUCT_STAT *dumstat;
 126
 127 #ifdef HAVE_SOCKETPAIR
 128         got_socketpair = "";
 129 #endif
 130
 131 #if SUPPORT_HARD_LINKS
 132         hardlinks = "";
 133 #endif
 134
 135 #if SUPPORT_LINKS
 136         links = "";
 137 #endif
 138
 139 #if INET6
 140         ipv6 = "";
 141 #endif
 142
 143         rprintf(f, "%s  version %s  protocol version %d\n",
 144                 RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION);
 145         rprintf(f,
 146                 "Copyright (C) 1996-2002 by Andrew Tridgell and others\n");
 147         rprintf(f, "<http://rsync.samba.org/>\n");
 148         rprintf(f, "Capabilities: %d-bit files, %ssocketpairs, "
 149                 "%shard links, %ssymlinks, batchfiles, %sIPv6,\n",
 150                 (int) (sizeof(OFF_T) * 8),
 151                 got_socketpair, hardlinks, links, ipv6);
 152
 153         /* Note that this field may not have type ino_t.  It depends
 154          * on the complicated interaction between largefile feature
 155          * macros. */
 156         rprintf(f, "              %d-bit system inums, %d-bit internal inums\n",
 157                 (int) (sizeof(dumstat->st_ino) * 8),
 158                 (int) (sizeof(INO64_T) * 8));
 159
 160 #ifdef NO_INT64
 161         rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
 162 #endif
 163 }
 164
 165
 166 void usage(enum logcode F)
 167 {
 168   print_rsync_version(F);
 169
 170   rprintf(F,"rsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");
 171
 172   rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
 173   rprintf(F,"  or   rsync [OPTION]... [USER@]HOST:SRC DEST\n");
 174   rprintf(F,"  or   rsync [OPTION]... SRC [SRC]... DEST\n");
 175   rprintf(F,"  or   rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
 176   rprintf(F,"  or   rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
 177   rprintf(F,"  or   rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
 178   rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n");
 179   rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n");
 180   rprintf(F,"  sources separated by space as long as they have same top-level\n");
 181   rprintf(F,"\nOptions\n");
 182   rprintf(F," -v, --verbose               increase verbosity\n");
 183   rprintf(F," -q, --quiet                 decrease verbosity\n");
 184   rprintf(F," -c, --checksum              always checksum\n");
 185   rprintf(F," -a, --archive               archive mode\n");
 186   rprintf(F," -r, --recursive             recurse into directories\n");
 187   rprintf(F," -R, --relative              use relative path names\n");
 188   rprintf(F," -b, --backup                make backups (default %s suffix)\n",BACKUP_SUFFIX);
 189   rprintf(F,"     --backup-dir            make backups into this directory\n");
 190   rprintf(F,"     --suffix=SUFFIX         override backup suffix\n");
 191   rprintf(F," -u, --update                update only (don't overwrite newer files)\n");
 192   rprintf(F," -l, --links                 copy symlinks as symlinks\n");
 193   rprintf(F," -L, --copy-links            copy the referent of symlinks\n");
 194   rprintf(F,"     --copy-unsafe-links     copy links outside the source tree\n");
 195   rprintf(F,"     --safe-links            ignore links outside the destination tree\n");
 196   rprintf(F," -H, --hard-links            preserve hard links\n");
 197   rprintf(F," -p, --perms                 preserve permissions\n");
 198   rprintf(F," -o, --owner                 preserve owner (root only)\n");
 199   rprintf(F," -g, --group                 preserve group\n");
 200   rprintf(F," -D, --devices               preserve devices (root only)\n");
 201   rprintf(F," -t, --times                 preserve times\n");
 202   rprintf(F," -S, --sparse                handle sparse files efficiently\n");
 203   rprintf(F," -n, --dry-run               show what would have been transferred\n");
 204   rprintf(F," -W, --whole-file            copy whole files, no incremental checks\n");
 205   rprintf(F,"     --no-whole-file         turn off --whole-file\n");
 206   rprintf(F," -x, --one-file-system       don't cross filesystem boundaries\n");
 207   rprintf(F," -B, --block-size=SIZE       checksum blocking size (default %d)\n",BLOCK_SIZE);
 208   rprintf(F," -e, --rsh=COMMAND           specify rsh replacement\n");
 209   rprintf(F,"     --rsync-path=PATH       specify path to rsync on the remote machine\n");
 210   rprintf(F," -C, --cvs-exclude           auto ignore files in the same way CVS does\n");
 211   rprintf(F,"     --existing              only update files that already exist\n");
 212   rprintf(F,"     --ignore-existing       ignore files that already exist on the receiving side\n");
 213   rprintf(F,"     --delete                delete files that don't exist on the sending side\n");
 214   rprintf(F,"     --delete-excluded       also delete excluded files on the receiving side\n");
 215   rprintf(F,"     --delete-after          delete after transferring, not before\n");
 216   rprintf(F,"     --ignore-errors         delete even if there are IO errors\n");
 217   rprintf(F,"     --max-delete=NUM        don't delete more than NUM files\n");
 218   rprintf(F,"     --partial               keep partially transferred files\n");
 219   rprintf(F,"     --force                 force deletion of directories even if not empty\n");
 220   rprintf(F,"     --numeric-ids           don't map uid/gid values by user/group name\n");
 221   rprintf(F,"     --timeout=TIME          set IO timeout in seconds\n");
 222   rprintf(F," -I, --ignore-times          don't exclude files that match length and time\n");
 223   rprintf(F,"     --size-only             only use file size when determining if a file should be transferred\n");
 224   rprintf(F,"     --modify-window=NUM     Timestamp window (seconds) for file match (default=%d)\n",modify_window);
 225   rprintf(F," -T  --temp-dir=DIR          create temporary files in directory DIR\n");
 226   rprintf(F,"     --compare-dest=DIR      also compare destination files relative to DIR\n");
 227   rprintf(F," -P                          equivalent to --partial --progress\n");
 228   rprintf(F," -z, --compress              compress file data\n");
 229   rprintf(F,"     --exclude=PATTERN       exclude files matching PATTERN\n");
 230   rprintf(F,"     --exclude-from=FILE     exclude patterns listed in FILE\n");
 231   rprintf(F,"     --include=PATTERN       don't exclude files matching PATTERN\n");
 232   rprintf(F,"     --include-from=FILE     don't exclude patterns listed in FILE\n");
 233   rprintf(F,"     --version               print version number\n");
 234   rprintf(F,"     --daemon                run as a rsync daemon\n");
 235   rprintf(F,"     --no-detach             do not detach from the parent\n");
 236   rprintf(F,"     --address=ADDRESS       bind to the specified address\n");
 237   rprintf(F,"     --config=FILE           specify alternate rsyncd.conf file\n");
 238   rprintf(F,"     --port=PORT             specify alternate rsyncd port number\n");
 239   rprintf(F,"     --blocking-io           use blocking IO for the remote shell\n");
 240   rprintf(F,"     --no-blocking-io        turn off --blocking-io\n");
 241   rprintf(F,"     --stats                 give some file transfer stats\n");
 242   rprintf(F,"     --progress              show progress during transfer\n");
 243   rprintf(F,"     --log-format=FORMAT     log file transfers using specified format\n");
 244   rprintf(F,"     --password-file=FILE    get password from FILE\n");
 245   rprintf(F,"     --bwlimit=KBPS          limit I/O bandwidth, KBytes per second\n");
 246   rprintf(F,"     --write-batch=PREFIX    write batch fileset starting with PREFIX\n");
 247   rprintf(F,"     --read-batch=PREFIX     read batch fileset starting with PREFIX\n");
 248   rprintf(F," -h, --help                  show this help screen\n");
 249 #ifdef INET6
 250   rprintf(F," -4                          prefer IPv4\n");
 251   rprintf(F," -6                          prefer IPv6\n");
 252 #endif
 253
 254   rprintf(F,"\n");
 255
 256   rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
 257   rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
 258 }
 259
 260 enum {OPT_VERSION = 1000, OPT_SUFFIX, OPT_SENDER, OPT_SERVER, OPT_EXCLUDE,
 261       OPT_EXCLUDE_FROM, OPT_DELETE, OPT_DELETE_EXCLUDED, OPT_NUMERIC_IDS,
 262       OPT_RSYNC_PATH, OPT_FORCE, OPT_TIMEOUT, OPT_DAEMON, OPT_CONFIG, OPT_PORT,
 263       OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_STATS, OPT_PARTIAL, OPT_PROGRESS,
 264       OPT_COPY_UNSAFE_LINKS, OPT_SAFE_LINKS, OPT_COMPARE_DEST,
 265       OPT_LOG_FORMAT, OPT_PASSWORD_FILE, OPT_SIZE_ONLY, OPT_ADDRESS,
 266       OPT_DELETE_AFTER, OPT_EXISTING, OPT_MAX_DELETE, OPT_BACKUP_DIR,
 267       OPT_IGNORE_ERRORS, OPT_BWLIMIT, OPT_BLOCKING_IO,
 268       OPT_NO_BLOCKING_IO, OPT_NO_WHOLE_FILE,
 269       OPT_MODIFY_WINDOW, OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_IGNORE_EXISTING};
 270
 271 static struct poptOption long_options[] = {
 272   /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
 273   {"version",          0,  POPT_ARG_NONE,   0,             OPT_VERSION},
 274   {"suffix",           0,  POPT_ARG_STRING, &backup_suffix},
 275   {"rsync-path",       0,  POPT_ARG_STRING, &rsync_path},
 276   {"password-file",    0,  POPT_ARG_STRING, &password_file},
 277   {"ignore-times",    'I', POPT_ARG_NONE,   &ignore_times},
 278   {"size-only",        0,  POPT_ARG_NONE,   &size_only},
 279   {"modify-window",    0,  POPT_ARG_INT,    &modify_window, OPT_MODIFY_WINDOW},
 280   {"one-file-system", 'x', POPT_ARG_NONE,   &one_file_system},
 281   {"delete",           0,  POPT_ARG_NONE,   &delete_mode},
 282   {"existing",         0,  POPT_ARG_NONE,   &only_existing},
 283   {"ignore-existing",  0,  POPT_ARG_NONE,   &opt_ignore_existing},
 284   {"delete-after",     0,  POPT_ARG_NONE,   &delete_after},
 285   {"delete-excluded",  0,  POPT_ARG_NONE,   0,              OPT_DELETE_EXCLUDED},
 286   {"force",            0,  POPT_ARG_NONE,   &force_delete},
 287   {"numeric-ids",      0,  POPT_ARG_NONE,   &numeric_ids},
 288   {"exclude",          0,  POPT_ARG_STRING, 0,              OPT_EXCLUDE},
 289   {"include",          0,  POPT_ARG_STRING, 0,              OPT_INCLUDE},
 290   {"exclude-from",     0,  POPT_ARG_STRING, 0,              OPT_EXCLUDE_FROM},
 291   {"include-from",     0,  POPT_ARG_STRING, 0,              OPT_INCLUDE_FROM},
 292   {"safe-links",       0,  POPT_ARG_NONE,   &safe_symlinks},
 293   {"help",            'h', POPT_ARG_NONE,   0,              'h'},
 294   {"backup",          'b', POPT_ARG_NONE,   &make_backups},
 295   {"dry-run",         'n', POPT_ARG_NONE,   &dry_run},
 296   {"sparse",          'S', POPT_ARG_NONE,   &sparse_files},
 297   {"cvs-exclude",     'C', POPT_ARG_NONE,   &cvs_exclude},
 298   {"update",          'u', POPT_ARG_NONE,   &update_only},
 299   {"links",           'l', POPT_ARG_NONE,   &preserve_links},
 300   {"copy-links",      'L', POPT_ARG_NONE,   &copy_links},
 301   {"whole-file",      'W', POPT_ARG_NONE,   &whole_file},
 302   {"no-whole-file",    0,  POPT_ARG_NONE,   0,               OPT_NO_WHOLE_FILE},
 303   {"copy-unsafe-links", 0, POPT_ARG_NONE,   &copy_unsafe_links},
 304   {"perms",           'p', POPT_ARG_NONE,   &preserve_perms},
 305   {"owner",           'o', POPT_ARG_NONE,   &preserve_uid},
 306   {"group",           'g', POPT_ARG_NONE,   &preserve_gid},
 307   {"devices",         'D', POPT_ARG_NONE,   &preserve_devices},
 308   {"times",           't', POPT_ARG_NONE,   &preserve_times},
 309   {"checksum",        'c', POPT_ARG_NONE,   &always_checksum},
 310   {"verbose",         'v', POPT_ARG_NONE,   0,               'v'},
 311   {"quiet",           'q', POPT_ARG_NONE,   0,               'q'},
 312   {"archive",         'a', POPT_ARG_NONE,   0,               'a'},
 313   {"server",           0,  POPT_ARG_NONE,   &am_server},
 314   {"sender",           0,  POPT_ARG_NONE,   0,               OPT_SENDER},
 315   {"recursive",       'r', POPT_ARG_NONE,   &recurse},
 316   {"relative",        'R', POPT_ARG_NONE,   &relative_paths},
 317   {"rsh",             'e', POPT_ARG_STRING, &shell_cmd},
 318   {"block-size",      'B', POPT_ARG_INT,    &block_size},
 319   {"max-delete",       0,  POPT_ARG_INT,    &max_delete},
 320   {"timeout",          0,  POPT_ARG_INT,    &io_timeout},
 321   {"temp-dir",        'T', POPT_ARG_STRING, &tmpdir},
 322   {"compare-dest",     0,  POPT_ARG_STRING, &compare_dest},
 323   /* TODO: Should this take an optional int giving the compression level? */
 324   {"compress",        'z', POPT_ARG_NONE,   &do_compression},
 325   {"daemon",           0,  POPT_ARG_NONE,   &am_daemon},
 326   {"no-detach",        0,  POPT_ARG_NONE,   &no_detach},
 327   {"stats",            0,  POPT_ARG_NONE,   &do_stats},
 328   {"progress",         0,  POPT_ARG_NONE,   &do_progress},
 329   {"partial",          0,  POPT_ARG_NONE,   &keep_partial},
 330   {"ignore-errors",    0,  POPT_ARG_NONE,   &ignore_errors},
 331   {"blocking-io",      0,  POPT_ARG_NONE,   &blocking_io},
 332   {"no-blocking-io",   0,  POPT_ARG_NONE,   0,               OPT_NO_BLOCKING_IO},
 333   {0,                 'P', POPT_ARG_NONE,   0,               'P'},
 334   {"config",           0,  POPT_ARG_STRING, &config_file},
 335   {"port",             0,  POPT_ARG_INT,    &rsync_port},
 336   {"log-format",       0,  POPT_ARG_STRING, &log_format},
 337   {"bwlimit",          0,  POPT_ARG_INT,    &bwlimit},
 338   {"address",          0,  POPT_ARG_STRING, &bind_address, 0},
 339   {"backup-dir",       0,  POPT_ARG_STRING, &backup_dir},
 340   {"hard-links",      'H', POPT_ARG_NONE,   &preserve_hard_links},
 341   {"read-batch",       0,  POPT_ARG_STRING, &batch_prefix, OPT_READ_BATCH},
 342   {"write-batch",      0,  POPT_ARG_STRING, &batch_prefix, OPT_WRITE_BATCH},
 343 #ifdef INET6
 344   {0,                 '4', POPT_ARG_VAL,    &default_af_hint,   AF_INET },
 345   {0,                 '6', POPT_ARG_VAL,    &default_af_hint,   AF_INET6 },
 346 #endif
 347   {0,0,0,0}
 348 };
 349
 350
 351 static char err_buf[100];
 352
 353
 354 /* We store the option error message, if any, so that we can log the
 355    connection attempt (which requires parsing the options), and then
 356    show the error later on. */
 357 void option_error(void)
 358 {
 359         if (err_buf[0]) {
 360                 rprintf(FLOG, "%s", err_buf);
 361                 rprintf(FERROR, "%s: %s", RSYNC_NAME, err_buf);
 362         } else {
 363                 rprintf (FERROR, "Error parsing options: "
 364                          "option may be supported on client but not on server?\n");
 365                 rprintf (FERROR, RSYNC_NAME ": Error parsing options: "
 366                          "option may be supported on client but not on server?\n");
 367         }
 368 }
 369
 370 /* check to see if we should refuse this option */
 371 static int check_refuse_options(char *ref, int opt)
 372 {
 373         int i, len;
 374         char *p;
 375         const char *name;
 376
 377         for (i=0; long_options[i].longName; i++) {
 378                 if (long_options[i].val == opt) break;
 379         }
 380
 381         if (!long_options[i].longName) return 0;
 382
 383         name = long_options[i].longName;
 384         len = strlen(name);
 385
 386         while ((p = strstr(ref,name))) {
 387                 if ((p==ref || p[-1]==' ') &&
 388                     (p[len] == ' ' || p[len] == 0)) {
 389                         snprintf(err_buf,sizeof(err_buf),
 390                                  "The '%s' option is not supported by this server\n", name);
 391                         return 1;
 392                 }
 393                 ref += len;
 394         }
 395         return 0;
 396 }
 397
 398
 399 static int count_args(char const **argv)
 400 {
 401         int i = 0;
 402
 403         while (argv[i] != NULL)
 404                 i++;
 405
 406         return i;
 407 }
 408
 409
 410 /* Process command line arguments.  Called on both local and remote.
 411  * Returns if all options are OK, otherwise fills in err_buf and
 412  * returns 0. */
 413 int parse_arguments(int *argc, const char ***argv, int frommain)
 414 {
 415         int opt;
 416         char *ref = lp_refuse_options(module_id);
 417         poptContext pc;
 418
 419         /* TODO: Call poptReadDefaultConfig; handle errors. */
 420
 421         /* The context leaks in case of an error, but if there's a
 422          * problem we always exit anyhow. */
 423         pc = poptGetContext(RSYNC_NAME, *argc, *argv, long_options, 0);
 424
 425         while ((opt = poptGetNextOpt(pc)) != -1) {
 426                 if (ref) {
 427                         if (check_refuse_options(ref, opt)) return 0;
 428                 }
 429
 430                 /* most options are handled automatically by popt;
 431                  * only special cases are returned and listed here. */
 432
 433                 switch (opt) {
 434                 case OPT_VERSION:
 435                         print_rsync_version(FINFO);
 436                         exit_cleanup(0);
 437
 438                 case OPT_MODIFY_WINDOW:
 439                         /* The value has already been set by popt, but
 440                          * we need to remember that we're using a
 441                          * non-default setting. */
 442                         modify_window_set = 1;
 443                         break;
 444
 445                 case OPT_DELETE_EXCLUDED:
 446                         delete_excluded = 1;
 447                         delete_mode = 1;
 448                         break;
 449
 450                 case OPT_EXCLUDE:
 451                         add_exclude(poptGetOptArg(pc), 0);
 452                         break;
 453
 454                 case OPT_INCLUDE:
 455                         add_exclude(poptGetOptArg(pc), 1);
 456                         break;
 457
 458                 case OPT_EXCLUDE_FROM:
 459                         add_exclude_file(poptGetOptArg(pc), 1, 0);
 460                         break;
 461
 462                 case OPT_INCLUDE_FROM:
 463                         add_exclude_file(poptGetOptArg(pc), 1, 1);
 464                         break;
 465
 466                 case OPT_NO_WHOLE_FILE:
 467                         whole_file = 0;
 468                         break;
 469
 470                 case OPT_NO_BLOCKING_IO:
 471                         blocking_io = 0;
 472                         break;
 473
 474                 case 'h':
 475                         usage(FINFO);
 476                         exit_cleanup(0);
 477
 478                 case 'H':
 479 #if SUPPORT_HARD_LINKS
 480                         preserve_hard_links=1;
 481 #else
 482                         /* FIXME: Don't say "server" if this is
 483                          * happening on the client. */
 484                         /* FIXME: Why do we have the duplicated
 485                          * rprintf?  Everybody who gets this message
 486                          * ought to send it to the client and also to
 487                          * the logs. */
 488                         snprintf(err_buf,sizeof(err_buf),
 489                                  "hard links are not supported on this %s\n",
 490                                  am_server ? "server" : "client");
 491                         rprintf(FERROR,"ERROR: hard links not supported on this platform\n");
 492                         return 0;
 493 #endif /* SUPPORT_HARD_LINKS */
 494                         break;
 495
 496                 case 'v':
 497                         verbose++;
 498                         break;
 499
 500                 case 'q':
 501                         if (frommain) quiet++;
 502                         break;
 503
 504                 case 'a':
 505                         recurse=1;
 506 #if SUPPORT_LINKS
 507                         preserve_links=1;
 508 #endif
 509                         preserve_perms=1;
 510                         preserve_times=1;
 511                         preserve_gid=1;
 512                         preserve_uid=1;
 513                         preserve_devices=1;
 514                         break;
 515
 516                 case OPT_SENDER:
 517                         if (!am_server) {
 518                                 usage(FERROR);
 519                                 exit_cleanup(RERR_SYNTAX);
 520                         }
 521                         am_sender = 1;
 522                         break;
 523
 524                 case 'P':
 525                         do_progress = 1;
 526                         keep_partial = 1;
 527                         break;
 528
 529                 case OPT_WRITE_BATCH:
 530                         /* popt stores the filename in batch_prefix for us */
 531                         write_batch = 1;
 532                         break;
 533
 534                 case OPT_READ_BATCH:
 535                         /* popt stores the filename in batch_prefix for us */
 536                         read_batch = 1;
 537                         break;
 538
 539                 default:
 540                         /* FIXME: If --daemon is specified, then errors for later
 541                          * parameters seem to disappear. */
 542                         snprintf(err_buf, sizeof(err_buf),
 543                                  "%s%s: %s\n",
 544                                  am_server ? "on remote machine: " : "",
 545                                  poptBadOption(pc, POPT_BADOPTION_NOALIAS),
 546                                  poptStrerror(opt));
 547                         return 0;
 548                 }
 549         }
 550
 551         if (write_batch && read_batch) {
 552             snprintf(err_buf,sizeof(err_buf),
 553                 "write-batch and read-batch can not be used together\n");
 554             rprintf(FERROR,"ERROR: write-batch and read-batch"
 555                 " can not be used together\n");
 556             return 0;
 557         }
 558
 559         if (do_compression && (write_batch || read_batch)) {
 560             snprintf(err_buf,sizeof(err_buf),
 561                 "compress can not be used with write-batch or read-batch\n");
 562             rprintf(FERROR,"ERROR: compress can not be used with"
 563                 "  write-batch or read-batch\n");
 564             return 0;
 565         }
 566
 567         *argv = poptGetArgs(pc);
 568         if (*argv)
 569                 *argc = count_args(*argv);
 570         else
 571                 *argc = 0;
 572
 573         return 1;
 574 }
 575
 576
 577 /* Construct a filtered list of options to pass through from the
 578  * client to the server */
 579 void server_options(char **args,int *argc)
 580 {
 581         int ac = *argc;
 582         static char argstr[50];
 583         static char bsize[30];
 584         static char iotime[30];
 585         static char mdelete[30];
 586         static char mwindow[30];
 587         static char bw[50];
 588         /* Leave room for ``--(write|read)-batch='' */
 589         static char fext[MAXPATHLEN + 15];
 590
 591         int i, x;
 592
 593         if (whole_file == -1)
 594                 whole_file = 0;
 595         if (blocking_io == -1)
 596                 blocking_io = 0;
 597
 598         args[ac++] = "--server";
 599
 600         if (!am_sender)
 601                 args[ac++] = "--sender";
 602
 603         x = 1;
 604         argstr[0] = '-';
 605         for (i=0;i<verbose;i++)
 606                 argstr[x++] = 'v';
 607
 608         /* the -q option is intentionally left out */
 609         if (make_backups)
 610                 argstr[x++] = 'b';
 611         if (update_only)
 612                 argstr[x++] = 'u';
 613         if (dry_run)
 614                 argstr[x++] = 'n';
 615         if (preserve_links)
 616                 argstr[x++] = 'l';
 617         if (copy_links)
 618                 argstr[x++] = 'L';
 619         if (whole_file)
 620                 argstr[x++] = 'W';
 621         if (preserve_hard_links)
 622                 argstr[x++] = 'H';
 623         if (preserve_uid)
 624                 argstr[x++] = 'o';
 625         if (preserve_gid)
 626                 argstr[x++] = 'g';
 627         if (preserve_devices)
 628                 argstr[x++] = 'D';
 629         if (preserve_times)
 630                 argstr[x++] = 't';
 631         if (preserve_perms)
 632                 argstr[x++] = 'p';
 633         if (recurse)
 634                 argstr[x++] = 'r';
 635         if (always_checksum)
 636                 argstr[x++] = 'c';
 637         if (cvs_exclude)
 638                 argstr[x++] = 'C';
 639         if (ignore_times)
 640                 argstr[x++] = 'I';
 641         if (relative_paths)
 642                 argstr[x++] = 'R';
 643         if (one_file_system)
 644                 argstr[x++] = 'x';
 645         if (sparse_files)
 646                 argstr[x++] = 'S';
 647         if (do_compression)
 648                 argstr[x++] = 'z';
 649
 650         /* this is a complete hack - blame Rusty
 651
 652            this is a hack to make the list_only (remote file list)
 653            more useful */
 654         if (list_only && !recurse)
 655                 argstr[x++] = 'r';
 656
 657         argstr[x] = 0;
 658
 659         if (x != 1) args[ac++] = argstr;
 660
 661         if (block_size != BLOCK_SIZE) {
 662                 snprintf(bsize,sizeof(bsize),"-B%d",block_size);
 663                 args[ac++] = bsize;
 664         }
 665
 666         if (max_delete && am_sender) {
 667                 snprintf(mdelete,sizeof(mdelete),"--max-delete=%d",max_delete);
 668                 args[ac++] = mdelete;
 669         }
 670
 671         if (batch_prefix != NULL) {
 672                 char *fmt = "";
 673                 if (write_batch)
 674                     fmt = "--write-batch=%s";
 675                 else
 676                 if (read_batch)
 677                     fmt = "--read-batch=%s";
 678                 snprintf(fext,sizeof(fext),fmt,batch_prefix);
 679                 args[ac++] = fext;
 680         }
 681
 682         if (io_timeout) {
 683                 snprintf(iotime,sizeof(iotime),"--timeout=%d",io_timeout);
 684                 args[ac++] = iotime;
 685         }
 686
 687         if (bwlimit) {
 688                 snprintf(bw,sizeof(bw),"--bwlimit=%d",bwlimit);
 689                 args[ac++] = bw;
 690         }
 691
 692         if (strcmp(backup_suffix, BACKUP_SUFFIX)) {
 693                 args[ac++] = "--suffix";
 694                 args[ac++] = backup_suffix;
 695         }
 696
 697         if (delete_mode && !delete_excluded)
 698                 args[ac++] = "--delete";
 699
 700         if (delete_excluded)
 701                 args[ac++] = "--delete-excluded";
 702
 703         if (size_only)
 704                 args[ac++] = "--size-only";
 705
 706         if (modify_window_set) {
 707                 snprintf(mwindow,sizeof(mwindow),"--modify-window=%d",
 708                          modify_window);
 709                 args[ac++] = mwindow;
 710         }
 711
 712         if (keep_partial)
 713                 args[ac++] = "--partial";
 714
 715         if (force_delete)
 716                 args[ac++] = "--force";
 717
 718         if (delete_after)
 719                 args[ac++] = "--delete-after";
 720
 721         if (ignore_errors)
 722                 args[ac++] = "--ignore-errors";
 723
 724         if (copy_unsafe_links)
 725                 args[ac++] = "--copy-unsafe-links";
 726
 727         if (safe_symlinks)
 728                 args[ac++] = "--safe-links";
 729
 730         if (numeric_ids)
 731                 args[ac++] = "--numeric-ids";
 732
 733         if (only_existing && am_sender)
 734                 args[ac++] = "--existing";
 735
 736         if (opt_ignore_existing && am_sender)
 737                 args[ac++] = "--ignore-existing";
 738
 739         if (tmpdir) {
 740                 args[ac++] = "--temp-dir";
 741                 args[ac++] = tmpdir;
 742         }
 743
 744         if (backup_dir && am_sender) {
 745                 /* only the receiver needs this option, if we are the sender
 746                  *   then we need to send it to the receiver.
 747                  */
 748                 args[ac++] = "--backup-dir";
 749                 args[ac++] = backup_dir;
 750         }
 751
 752         if (compare_dest && am_sender) {
 753                 /* the server only needs this option if it is not the sender,
 754                  *   and it may be an older version that doesn't know this
 755                  *   option, so don't send it if client is the sender.
 756                  */
 757                 args[ac++] = "--compare-dest";
 758                 args[ac++] = compare_dest;
 759         }
 760
 761
 762         *argc = ac;
 763 }
 764