options.c

   1 /*  -*- c-file-style: "linux" -*-
   2
   3     Copyright (C) 1998-2000 by Andrew Tridgell
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 2 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software
  17    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18 */
  19
  20 /* options parsing code */
  21
  22 #include "rsync.h"
  23
  24
  25 int make_backups = 0;
  26 int whole_file = 0;
  27 int copy_links = 0;
  28 int preserve_links = 0;
  29 int preserve_hard_links = 0;
  30 int preserve_perms = 0;
  31 int preserve_devices = 0;
  32 int preserve_uid = 0;
  33 int preserve_gid = 0;
  34 int preserve_times = 0;
  35 int update_only = 0;
  36 int cvs_exclude = 0;
  37 int dry_run=0;
  38 int local_server=0;
  39 int ignore_times=0;
  40 int delete_mode=0;
  41 int delete_excluded=0;
  42 int one_file_system=0;
  43 int remote_version=0;
  44 int sparse_files=0;
  45 int do_compression=0;
  46 int am_root=0;
  47 int orig_umask=0;
  48 int relative_paths=0;
  49 int numeric_ids = 0;
  50 int force_delete = 0;
  51 int io_timeout = 0;
  52 int io_error = 0;
  53 int read_only = 0;
  54 int module_id = -1;
  55 int am_server = 0;
  56 int am_sender=0;
  57 int recurse = 0;
  58 int am_daemon=0;
  59 int do_stats=0;
  60 int do_progress=0;
  61 int keep_partial=0;
  62 int safe_symlinks=0;
  63 int copy_unsafe_links=0;
  64 int block_size=BLOCK_SIZE;
  65 int size_only=0;
  66 int bwlimit=0;
  67 int delete_after=0;
  68 int only_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=0;
  77
  78 char *backup_suffix = BACKUP_SUFFIX;
  79 char *tmpdir = NULL;
  80 char *compare_dest = NULL;
  81 char *config_file = RSYNCD_CONF;
  82 char *shell_cmd = NULL;
  83 char *log_format = NULL;
  84 char *password_file = NULL;
  85 char *rsync_path = RSYNC_NAME;
  86 char *backup_dir = NULL;
  87 int rsync_port = RSYNC_PORT;
  88
  89 int verbose = 0;
  90 int quiet = 0;
  91 int always_checksum = 0;
  92 int list_only = 0;
  93
  94 static int modify_window_set;
  95
  96
  97 struct in_addr socket_address = {INADDR_ANY};
  98
  99
 100 static void print_rsync_version(void)
 101 {
 102         rprintf(FINFO, "rsync version %s  protocol version %d (%d-bit files)\n\n",
 103                 VERSION, PROTOCOL_VERSION,
 104                 sizeof(int64) * 8);
 105         rprintf(FINFO, "Written by Andrew Tridgell and Paul Mackerras\n");
 106         rprintf(FINFO, "http://rsync.samba.org/\n");
 107 #ifdef NO_INT64
 108         rprintf(FINFO, "WARNING: no 64-bit integers on this platform!\n");
 109 #endif
 110 }
 111
 112
 113 void usage(enum logcode F)
 114 {
 115   rprintf(F,"rsync version %s Copyright Andrew Tridgell and Paul Mackerras\n\n",
 116           VERSION);
 117 #ifdef NO_INT64
 118   rprintf(F, "WARNING: no 64-bit integers on this platform!\n");
 119 #endif
 120
 121   rprintf(F,"rsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");
 122
 123   rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
 124   rprintf(F,"  or   rsync [OPTION]... [USER@]HOST:SRC DEST\n");
 125   rprintf(F,"  or   rsync [OPTION]... SRC [SRC]... DEST\n");
 126   rprintf(F,"  or   rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
 127   rprintf(F,"  or   rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
 128   rprintf(F,"  or   rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
 129   rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n");
 130   rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n");
 131   rprintf(F,"  sources separated by space as long as they have same top-level\n");
 132   rprintf(F,"\nOptions\n");
 133   rprintf(F," -v, --verbose               increase verbosity\n");
 134   rprintf(F," -q, --quiet                 decrease verbosity\n");
 135   rprintf(F," -c, --checksum              always checksum\n");
 136   rprintf(F," -a, --archive               archive mode\n");
 137   rprintf(F," -r, --recursive             recurse into directories\n");
 138   rprintf(F," -R, --relative              use relative path names\n");
 139   rprintf(F," -b, --backup                make backups (default %s suffix)\n",BACKUP_SUFFIX);
 140   rprintf(F,"     --backup-dir            make backups into this directory\n");
 141   rprintf(F,"     --suffix=SUFFIX         override backup suffix\n");
 142   rprintf(F," -u, --update                update only (don't overwrite newer files)\n");
 143   rprintf(F," -l, --links                 preserve soft links\n");
 144   rprintf(F," -L, --copy-links            treat soft links like regular files\n");
 145   rprintf(F,"     --copy-unsafe-links     copy links outside the source tree\n");
 146   rprintf(F,"     --safe-links            ignore links outside the destination tree\n");
 147   rprintf(F," -H, --hard-links            preserve hard links\n");
 148   rprintf(F," -p, --perms                 preserve permissions\n");
 149   rprintf(F," -o, --owner                 preserve owner (root only)\n");
 150   rprintf(F," -g, --group                 preserve group\n");
 151   rprintf(F," -D, --devices               preserve devices (root only)\n");
 152   rprintf(F," -t, --times                 preserve times\n");
 153   rprintf(F," -S, --sparse                handle sparse files efficiently\n");
 154   rprintf(F," -n, --dry-run               show what would have been transferred\n");
 155   rprintf(F," -W, --whole-file            copy whole files, no incremental checks\n");
 156   rprintf(F," -x, --one-file-system       don't cross filesystem boundaries\n");
 157   rprintf(F," -B, --block-size=SIZE       checksum blocking size (default %d)\n",BLOCK_SIZE);
 158   rprintf(F," -e, --rsh=COMMAND           specify rsh replacement\n");
 159   rprintf(F,"     --rsync-path=PATH       specify path to rsync on the remote machine\n");
 160   rprintf(F," -C, --cvs-exclude           auto ignore files in the same way CVS does\n");
 161   rprintf(F,"     --existing              only update files that already exist\n");
 162   rprintf(F,"     --delete                delete files that don't exist on the sending side\n");
 163   rprintf(F,"     --delete-excluded       also delete excluded files on the receiving side\n");
 164   rprintf(F,"     --delete-after          delete after transferring, not before\n");
 165   rprintf(F,"     --ignore-errors         delete even if there are IO errors\n");
 166   rprintf(F,"     --max-delete=NUM        don't delete more than NUM files\n");
 167   rprintf(F,"     --partial               keep partially transferred files\n");
 168   rprintf(F,"     --force                 force deletion of directories even if not empty\n");
 169   rprintf(F,"     --numeric-ids           don't map uid/gid values by user/group name\n");
 170   rprintf(F,"     --timeout=TIME          set IO timeout in seconds\n");
 171   rprintf(F," -I, --ignore-times          don't exclude files that match length and time\n");
 172   rprintf(F,"     --size-only             only use file size when determining if a file should be transferred\n");
 173   rprintf(F,"     --modify-window=NUM     Timestamp window (seconds) for file match (default=%d)\n",modify_window);
 174   rprintf(F," -T  --temp-dir=DIR          create temporary files in directory DIR\n");
 175   rprintf(F,"     --compare-dest=DIR      also compare destination files relative to DIR\n");
 176   rprintf(F," -P                          equivalent to --partial --progress\n");
 177   rprintf(F," -z, --compress              compress file data\n");
 178   rprintf(F,"     --exclude=PATTERN       exclude files matching PATTERN\n");
 179   rprintf(F,"     --exclude-from=FILE     exclude patterns listed in FILE\n");
 180   rprintf(F,"     --include=PATTERN       don't exclude files matching PATTERN\n");
 181   rprintf(F,"     --include-from=FILE     don't exclude patterns listed in FILE\n");
 182   rprintf(F,"     --version               print version number\n");
 183   rprintf(F,"     --daemon                run as a rsync daemon\n");
 184   rprintf(F,"     --address               bind to the specified address\n");
 185   rprintf(F,"     --config=FILE           specify alternate rsyncd.conf file\n");
 186   rprintf(F,"     --port=PORT             specify alternate rsyncd port number\n");
 187   rprintf(F,"     --blocking-io           use blocking IO for the remote shell\n");
 188   rprintf(F,"     --stats                 give some file transfer stats\n");
 189   rprintf(F,"     --progress              show progress during transfer\n");
 190   rprintf(F,"     --log-format=FORMAT     log file transfers using specified format\n");
 191   rprintf(F,"     --password-file=FILE    get password from FILE\n");
 192   rprintf(F,"     --bwlimit=KBPS          limit I/O bandwidth, KBytes per second\n");
 193   rprintf(F," -h, --help                  show this help screen\n");
 194
 195   rprintf(F,"\n");
 196
 197   rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
 198   rprintf(F,"See http://rsync.samba.org/ for updates and bug reports\n");
 199 }
 200
 201 enum {OPT_VERSION, OPT_SUFFIX, OPT_SENDER, OPT_SERVER, OPT_EXCLUDE,
 202       OPT_EXCLUDE_FROM, OPT_DELETE, OPT_DELETE_EXCLUDED, OPT_NUMERIC_IDS,
 203       OPT_RSYNC_PATH, OPT_FORCE, OPT_TIMEOUT, OPT_DAEMON, OPT_CONFIG, OPT_PORT,
 204       OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_STATS, OPT_PARTIAL, OPT_PROGRESS,
 205       OPT_COPY_UNSAFE_LINKS, OPT_SAFE_LINKS, OPT_COMPARE_DEST,
 206       OPT_LOG_FORMAT, OPT_PASSWORD_FILE, OPT_SIZE_ONLY, OPT_ADDRESS,
 207       OPT_DELETE_AFTER, OPT_EXISTING, OPT_MAX_DELETE, OPT_BACKUP_DIR,
 208       OPT_IGNORE_ERRORS, OPT_BWLIMIT, OPT_BLOCKING_IO,
 209       OPT_MODIFY_WINDOW};
 210
 211 static char *short_options = "oblLWHpguDCtcahvqrRIxnSe:B:T:zP";
 212
 213 static struct option long_options[] = {
 214   {"version",     0,     0,    OPT_VERSION},
 215   {"server",      0,     0,    OPT_SERVER},
 216   {"sender",      0,     0,    OPT_SENDER},
 217   {"existing",    0,     0,    OPT_EXISTING},
 218   {"delete",      0,     0,    OPT_DELETE},
 219   {"delete-excluded", 0, 0,    OPT_DELETE_EXCLUDED},
 220   {"force",       0,     0,    OPT_FORCE},
 221   {"numeric-ids", 0,     0,    OPT_NUMERIC_IDS},
 222   {"exclude",     1,     0,    OPT_EXCLUDE},
 223   {"exclude-from",1,     0,    OPT_EXCLUDE_FROM},
 224   {"include",     1,     0,    OPT_INCLUDE},
 225   {"include-from",1,     0,    OPT_INCLUDE_FROM},
 226   {"rsync-path",  1,     0,    OPT_RSYNC_PATH},
 227   {"password-file", 1,  0,     OPT_PASSWORD_FILE},
 228   {"one-file-system",0,  0,    'x'},
 229   {"ignore-times",0,     0,    'I'},
 230   {"size-only",   0,     0,    OPT_SIZE_ONLY},
 231   {"modify-window",1,    0,    OPT_MODIFY_WINDOW},
 232   {"help",        0,     0,    'h'},
 233   {"dry-run",     0,     0,    'n'},
 234   {"sparse",      0,     0,    'S'},
 235   {"cvs-exclude", 0,     0,    'C'},
 236   {"archive",     0,     0,    'a'},
 237   {"checksum",    0,     0,    'c'},
 238   {"backup",      0,     0,    'b'},
 239   {"update",      0,     0,    'u'},
 240   {"verbose",     0,     0,    'v'},
 241   {"quiet",       0,     0,    'q'},
 242   {"recursive",   0,     0,    'r'},
 243   {"relative",    0,     0,    'R'},
 244   {"devices",     0,     0,    'D'},
 245   {"perms",       0,     0,    'p'},
 246   {"links",       0,     0,    'l'},
 247   {"copy-links",  0,     0,    'L'},
 248   {"copy-unsafe-links", 0, 0,  OPT_COPY_UNSAFE_LINKS},
 249   {"safe-links",  0,     0,    OPT_SAFE_LINKS},
 250   {"whole-file",  0,     0,    'W'},
 251   {"hard-links",  0,     0,    'H'},
 252   {"owner",       0,     0,    'o'},
 253   {"group",       0,     0,    'g'},
 254   {"times",       0,     0,    't'},
 255   {"rsh",         1,     0,    'e'},
 256   {"suffix",      1,     0,    OPT_SUFFIX},
 257   {"block-size",  1,     0,    'B'},
 258   {"timeout",     1,     0,    OPT_TIMEOUT},
 259   {"temp-dir",    1,     0,    'T'},
 260   {"compare-dest", 1,    0,    OPT_COMPARE_DEST},
 261   {"compress",    0,     0,    'z'},
 262   {"daemon",      0,     0,    OPT_DAEMON},
 263   {"stats",       0,     0,    OPT_STATS},
 264   {"progress",    0,     0,    OPT_PROGRESS},
 265   {"partial",     0,     0,    OPT_PARTIAL},
 266   {"delete-after",0,     0,    OPT_DELETE_AFTER},
 267   {"ignore-errors",0,     0,   OPT_IGNORE_ERRORS},
 268   {"blocking-io" ,0,     0,    OPT_BLOCKING_IO},
 269   {"config",      1,     0,    OPT_CONFIG},
 270   {"port",        1,     0,    OPT_PORT},
 271   {"log-format",  1,     0,    OPT_LOG_FORMAT},
 272   {"bwlimit",     1,     0,    OPT_BWLIMIT},
 273   {"address",     1,     0,    OPT_ADDRESS},
 274   {"max-delete",  1,     0,    OPT_MAX_DELETE},
 275   {"backup-dir",  1,     0,    OPT_BACKUP_DIR},
 276   {0,0,0,0}};
 277
 278
 279 static char err_buf[100];
 280
 281 void option_error(void)
 282 {
 283         if (err_buf[0]) {
 284                 rprintf(FLOG,"%s", err_buf);
 285                 rprintf(FERROR,"%s", err_buf);
 286         } else {
 287                 rprintf(FLOG,"Error parsing options - unsupported option?\n");
 288                 rprintf(FERROR,"Error parsing options - unsupported option?\n");
 289         }
 290         exit_cleanup(RERR_UNSUPPORTED);
 291 }
 292
 293 /* check to see if we should refuse this option */
 294 static int check_refuse_options(char *ref, int opt)
 295 {
 296         int i, len;
 297         char *p;
 298         const char *name;
 299
 300         for (i=0; long_options[i].name; i++) {
 301                 if (long_options[i].val == opt) break;
 302         }
 303
 304         if (!long_options[i].name) return 0;
 305
 306         name = long_options[i].name;
 307         len = strlen(name);
 308
 309         while ((p = strstr(ref,name))) {
 310                 if ((p==ref || p[-1]==' ') &&
 311                     (p[len] == ' ' || p[len] == 0)) {
 312                         slprintf(err_buf,sizeof(err_buf),
 313                                  "The '%s' option is not supported by this server\n", name);
 314                         return 1;
 315                 }
 316                 ref += len;
 317         }
 318         return 0;
 319 }
 320
 321
 322 int parse_arguments(int argc, char *argv[], int frommain)
 323 {
 324         int opt;
 325         int option_index;
 326         char *ref = lp_refuse_options(module_id);
 327
 328         while ((opt = getopt_long(argc, argv,
 329                                   short_options, long_options, &option_index))
 330                != -1) {
 331
 332                 if (ref) {
 333                         if (check_refuse_options(ref, opt)) return 0;
 334                 }
 335
 336                 switch (opt) {
 337                 case OPT_VERSION:
 338                         print_rsync_version();
 339                         exit_cleanup(0);
 340
 341                 case OPT_SUFFIX:
 342                         backup_suffix = optarg;
 343                         break;
 344
 345                 case OPT_RSYNC_PATH:
 346                         rsync_path = optarg;
 347                         break;
 348
 349                 case OPT_PASSWORD_FILE:
 350                         password_file =optarg;
 351                         break;
 352
 353                 case 'I':
 354                         ignore_times = 1;
 355                         break;
 356
 357                 case OPT_SIZE_ONLY:
 358                         size_only = 1;
 359                         break;
 360
 361                 case OPT_MODIFY_WINDOW:
 362                         modify_window = atoi(optarg);
 363                         modify_window_set = 1;
 364                         break;
 365
 366                 case 'x':
 367                         one_file_system=1;
 368                         break;
 369
 370                 case OPT_DELETE:
 371                         delete_mode = 1;
 372                         break;
 373
 374                 case OPT_EXISTING:
 375                         only_existing = 1;
 376                         break;
 377
 378                 case OPT_DELETE_AFTER:
 379                         delete_after = 1;
 380                         break;
 381
 382                 case OPT_DELETE_EXCLUDED:
 383                         delete_excluded = 1;
 384                         delete_mode = 1;
 385                         break;
 386
 387                 case OPT_FORCE:
 388                         force_delete = 1;
 389                         break;
 390
 391                 case OPT_NUMERIC_IDS:
 392                         numeric_ids = 1;
 393                         break;
 394
 395                 case OPT_EXCLUDE:
 396                         add_exclude(optarg, 0);
 397                         break;
 398
 399                 case OPT_INCLUDE:
 400                         add_exclude(optarg, 1);
 401                         break;
 402
 403                 case OPT_EXCLUDE_FROM:
 404                         add_exclude_file(optarg,1, 0);
 405                         break;
 406
 407                 case OPT_INCLUDE_FROM:
 408                         add_exclude_file(optarg,1, 1);
 409                         break;
 410
 411                 case OPT_COPY_UNSAFE_LINKS:
 412                         copy_unsafe_links=1;
 413                         break;
 414
 415                 case OPT_SAFE_LINKS:
 416                         safe_symlinks=1;
 417                         break;
 418
 419                 case 'h':
 420                         usage(FINFO);
 421                         exit_cleanup(0);
 422
 423                 case 'b':
 424                         make_backups=1;
 425                         break;
 426
 427                 case 'n':
 428                         dry_run=1;
 429                         break;
 430
 431                 case 'S':
 432                         sparse_files=1;
 433                         break;
 434
 435                 case 'C':
 436                         cvs_exclude=1;
 437                         break;
 438
 439                 case 'u':
 440                         update_only=1;
 441                         break;
 442
 443                 case 'l':
 444                         preserve_links=1;
 445                         break;
 446
 447                 case 'L':
 448                         copy_links=1;
 449                         break;
 450
 451                 case 'W':
 452                         whole_file=1;
 453                         break;
 454
 455                 case 'H':
 456 #if SUPPORT_HARD_LINKS
 457                         preserve_hard_links=1;
 458 #else
 459                         slprintf(err_buf,sizeof(err_buf),"hard links are not supported on this server\n");
 460                         rprintf(FERROR,"ERROR: hard links not supported on this platform\n");
 461                         return 0;
 462 #endif
 463                         break;
 464
 465                 case 'p':
 466                         preserve_perms=1;
 467                         break;
 468
 469                 case 'o':
 470                         preserve_uid=1;
 471                         break;
 472
 473                 case 'g':
 474                         preserve_gid=1;
 475                         break;
 476
 477                 case 'D':
 478                         preserve_devices=1;
 479                         break;
 480
 481                 case 't':
 482                         preserve_times=1;
 483                         break;
 484
 485                 case 'c':
 486                         always_checksum=1;
 487                         break;
 488
 489                 case 'v':
 490                         verbose++;
 491                         break;
 492
 493                 case 'q':
 494                         if (frommain) quiet++;
 495                         break;
 496
 497                 case 'a':
 498                         recurse=1;
 499 #if SUPPORT_LINKS
 500                         preserve_links=1;
 501 #endif
 502                         preserve_perms=1;
 503                         preserve_times=1;
 504                         preserve_gid=1;
 505                         preserve_uid=1;
 506                         preserve_devices=1;
 507                         break;
 508
 509                 case OPT_SERVER:
 510                         am_server = 1;
 511                         break;
 512
 513                 case OPT_SENDER:
 514                         if (!am_server) {
 515                                 usage(FERROR);
 516                                 exit_cleanup(RERR_SYNTAX);
 517                         }
 518                         am_sender = 1;
 519                         break;
 520
 521                 case 'r':
 522                         recurse = 1;
 523                         break;
 524
 525                 case 'R':
 526                         relative_paths = 1;
 527                         break;
 528
 529                 case 'e':
 530                         shell_cmd = optarg;
 531                         break;
 532
 533                 case 'B':
 534                         block_size = atoi(optarg);
 535                         break;
 536
 537                 case OPT_MAX_DELETE:
 538                         max_delete = atoi(optarg);
 539                         break;
 540
 541                 case OPT_TIMEOUT:
 542                         io_timeout = atoi(optarg);
 543                         break;
 544
 545                 case 'T':
 546                         tmpdir = optarg;
 547                         break;
 548
 549                 case OPT_COMPARE_DEST:
 550                         compare_dest = optarg;
 551                         break;
 552
 553                 case 'z':
 554                         do_compression = 1;
 555                         break;
 556
 557                 case OPT_DAEMON:
 558                         am_daemon = 1;
 559                         break;
 560
 561                 case OPT_STATS:
 562                         do_stats = 1;
 563                         break;
 564
 565                 case OPT_PROGRESS:
 566                         do_progress = 1;
 567                         break;
 568
 569                 case OPT_PARTIAL:
 570                         keep_partial = 1;
 571                         break;
 572
 573                 case OPT_IGNORE_ERRORS:
 574                         ignore_errors = 1;
 575                         break;
 576
 577                 case OPT_BLOCKING_IO:
 578                         blocking_io = 1;
 579                         break;
 580
 581                 case 'P':
 582                         do_progress = 1;
 583                         keep_partial = 1;
 584                         break;
 585
 586                 case OPT_CONFIG:
 587                         config_file = optarg;
 588                         break;
 589
 590                 case OPT_PORT:
 591                         rsync_port = atoi(optarg);
 592                         break;
 593
 594                 case OPT_LOG_FORMAT:
 595                         log_format = optarg;
 596                         break;
 597
 598                 case OPT_BWLIMIT:
 599                         bwlimit = atoi(optarg);
 600                         break;
 601
 602                 case OPT_ADDRESS:
 603                         {
 604                                 struct in_addr *ia;
 605                                 if ((ia = ip_address(optarg))) {
 606                                         socket_address = *ia;
 607                                 }
 608                         }
 609                         break;
 610
 611                 case OPT_BACKUP_DIR:
 612                         backup_dir = optarg;
 613                         break;
 614
 615                 default:
 616                         slprintf(err_buf,sizeof(err_buf),"unrecognised option\n");
 617                         return 0;
 618                 }
 619         }
 620         return 1;
 621 }
 622
 623
 624 /* need to pass all the valid options from the client to the server */
 625
 626 void server_options(char **args,int *argc)
 627 {
 628         int ac = *argc;
 629         static char argstr[50];
 630         static char bsize[30];
 631         static char iotime[30];
 632         static char mdelete[30];
 633         static char mwindow[30];
 634         static char bw[50];
 635
 636         int i, x;
 637
 638         args[ac++] = "--server";
 639
 640         if (!am_sender)
 641                 args[ac++] = "--sender";
 642
 643         x = 1;
 644         argstr[0] = '-';
 645         for (i=0;i<verbose;i++)
 646                 argstr[x++] = 'v';
 647
 648         /* the -q option is intentionally left out */
 649         if (make_backups)
 650                 argstr[x++] = 'b';
 651         if (update_only)
 652                 argstr[x++] = 'u';
 653         if (dry_run)
 654                 argstr[x++] = 'n';
 655         if (preserve_links)
 656                 argstr[x++] = 'l';
 657         if (copy_links)
 658                 argstr[x++] = 'L';
 659         if (whole_file)
 660                 argstr[x++] = 'W';
 661         if (preserve_hard_links)
 662                 argstr[x++] = 'H';
 663         if (preserve_uid)
 664                 argstr[x++] = 'o';
 665         if (preserve_gid)
 666                 argstr[x++] = 'g';
 667         if (preserve_devices)
 668                 argstr[x++] = 'D';
 669         if (preserve_times)
 670                 argstr[x++] = 't';
 671         if (preserve_perms)
 672                 argstr[x++] = 'p';
 673         if (recurse)
 674                 argstr[x++] = 'r';
 675         if (always_checksum)
 676                 argstr[x++] = 'c';
 677         if (cvs_exclude)
 678                 argstr[x++] = 'C';
 679         if (ignore_times)
 680                 argstr[x++] = 'I';
 681         if (relative_paths)
 682                 argstr[x++] = 'R';
 683         if (one_file_system)
 684                 argstr[x++] = 'x';
 685         if (sparse_files)
 686                 argstr[x++] = 'S';
 687         if (do_compression)
 688                 argstr[x++] = 'z';
 689
 690         /* this is a complete hack - blame Rusty
 691
 692            this is a hack to make the list_only (remote file list)
 693            more useful */
 694         if (list_only && !recurse)
 695                 argstr[x++] = 'r';
 696
 697         argstr[x] = 0;
 698
 699         if (x != 1) args[ac++] = argstr;
 700
 701         if (block_size != BLOCK_SIZE) {
 702                 slprintf(bsize,sizeof(bsize),"-B%d",block_size);
 703                 args[ac++] = bsize;
 704         }
 705
 706         if (max_delete && am_sender) {
 707                 slprintf(mdelete,sizeof(mdelete),"--max-delete=%d",max_delete);
 708                 args[ac++] = mdelete;
 709         }
 710
 711         if (io_timeout) {
 712                 slprintf(iotime,sizeof(iotime),"--timeout=%d",io_timeout);
 713                 args[ac++] = iotime;
 714         }
 715
 716         if (bwlimit) {
 717                 slprintf(bw,sizeof(bw),"--bwlimit=%d",bwlimit);
 718                 args[ac++] = bw;
 719         }
 720
 721         if (strcmp(backup_suffix, BACKUP_SUFFIX)) {
 722                 args[ac++] = "--suffix";
 723                 args[ac++] = backup_suffix;
 724         }
 725
 726         if (delete_mode && !delete_excluded)
 727                 args[ac++] = "--delete";
 728
 729         if (delete_excluded)
 730                 args[ac++] = "--delete-excluded";
 731
 732         if (size_only)
 733                 args[ac++] = "--size-only";
 734
 735         if (modify_window_set) {
 736                 slprintf(mwindow,sizeof(mwindow),"--modify-window=%d",
 737                          modify_window);
 738                 args[ac++] = mwindow;
 739         }
 740
 741         if (keep_partial)
 742                 args[ac++] = "--partial";
 743
 744         if (force_delete)
 745                 args[ac++] = "--force";
 746
 747         if (delete_after)
 748                 args[ac++] = "--delete-after";
 749
 750         if (ignore_errors)
 751                 args[ac++] = "--ignore-errors";
 752
 753         if (copy_unsafe_links)
 754                 args[ac++] = "--copy-unsafe-links";
 755
 756         if (safe_symlinks)
 757                 args[ac++] = "--safe-links";
 758
 759         if (numeric_ids)
 760                 args[ac++] = "--numeric-ids";
 761
 762         if (only_existing && am_sender)
 763                 args[ac++] = "--existing";
 764
 765         if (tmpdir) {
 766                 args[ac++] = "--temp-dir";
 767                 args[ac++] = tmpdir;
 768         }
 769
 770         if (backup_dir && am_sender) {
 771                 /* only the receiver needs this option, if we are the sender
 772                  *   then we need to send it to the receiver.
 773                  */
 774                 args[ac++] = "--backup-dir";
 775                 args[ac++] = backup_dir;
 776         }
 777
 778         if (compare_dest && am_sender) {
 779                 /* the server only needs this option if it is not the sender,
 780                  *   and it may be an older version that doesn't know this
 781                  *   option, so don't send it if client is the sender.
 782                  */
 783                 args[ac++] = "--compare-dest";
 784                 args[ac++] = compare_dest;
 785         }
 786
 787
 788         *argc = ac;
 789 }
 790