options.c

   1 /*
   2    Copyright (C) Andrew Tridgell 1998
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software
  16    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17 */
  18
  19 /* options parsing code */
  20
  21 #include "rsync.h"
  22
  23
  24 int make_backups = 0;
  25 int whole_file = 0;
  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
  66 char *backup_suffix = BACKUP_SUFFIX;
  67 char *tmpdir = NULL;
  68 char *compare_dest = NULL;
  69 char *config_file = RSYNCD_CONF;
  70 char *shell_cmd = NULL;
  71 char *log_format = NULL;
  72 char *password_file = NULL;
  73 char *rsync_path = RSYNC_NAME;
  74 int rsync_port = RSYNC_PORT;
  75
  76 int verbose = 0;
  77 int quiet = 0;
  78 int always_checksum = 0;
  79 int list_only = 0;
  80
  81 struct in_addr socket_address = {INADDR_ANY};
  82
  83 void usage(int F)
  84 {
  85   rprintf(F,"rsync version %s Copyright Andrew Tridgell and Paul Mackerras\n\n",
  86           VERSION);
  87
  88   rprintf(F,"rsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");
  89
  90   rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
  91   rprintf(F,"  or   rsync [OPTION]... [USER@]HOST:SRC DEST\n");
  92   rprintf(F,"  or   rsync [OPTION]... SRC [SRC]... DEST\n");
  93   rprintf(F,"  or   rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
  94   rprintf(F,"  or   rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
  95   rprintf(F,"  or   rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
  96   rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n");
  97   rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n");
  98   rprintf(F,"  sources separated by space as long as they have same top-level\n");
  99   rprintf(F,"\nOptions\n");
 100   rprintf(F," -v, --verbose               increase verbosity\n");
 101   rprintf(F," -q, --quiet                 decrease verbosity\n");
 102   rprintf(F," -c, --checksum              always checksum\n");
 103   rprintf(F," -a, --archive               archive mode\n");
 104   rprintf(F," -r, --recursive             recurse into directories\n");
 105   rprintf(F," -R, --relative              use relative path names\n");
 106   rprintf(F," -b, --backup                make backups (default %s suffix)\n",BACKUP_SUFFIX);
 107   rprintf(F,"     --suffix=SUFFIX         override backup suffix\n");
 108   rprintf(F," -u, --update                update only (don't overwrite newer files)\n");
 109   rprintf(F," -l, --links                 preserve soft links\n");
 110   rprintf(F," -L, --copy-links            treat soft links like regular files\n");
 111   rprintf(F,"     --copy-unsafe-links     copy links outside the source tree\n");
 112   rprintf(F,"     --safe-links            ignore links outside the destination tree\n");
 113   rprintf(F," -H, --hard-links            preserve hard links\n");
 114   rprintf(F," -p, --perms                 preserve permissions\n");
 115   rprintf(F," -o, --owner                 preserve owner (root only)\n");
 116   rprintf(F," -g, --group                 preserve group\n");
 117   rprintf(F," -D, --devices               preserve devices (root only)\n");
 118   rprintf(F," -t, --times                 preserve times\n");
 119   rprintf(F," -S, --sparse                handle sparse files efficiently\n");
 120   rprintf(F," -n, --dry-run               show what would have been transferred\n");
 121   rprintf(F," -W, --whole-file            copy whole files, no incremental checks\n");
 122   rprintf(F," -x, --one-file-system       don't cross filesystem boundaries\n");
 123   rprintf(F," -B, --block-size=SIZE       checksum blocking size (default %d)\n",BLOCK_SIZE);
 124   rprintf(F," -e, --rsh=COMMAND           specify rsh replacement\n");
 125   rprintf(F,"     --rsync-path=PATH       specify path to rsync on the remote machine\n");
 126   rprintf(F," -C, --cvs-exclude           auto ignore files in the same way CVS does\n");
 127   rprintf(F,"     --delete                delete files that don't exist on the sending side\n");
 128   rprintf(F,"     --delete-excluded       also delete excluded files on the receiving side\n");
 129   rprintf(F,"     --partial               keep partially transferred files\n");
 130   rprintf(F,"     --force                 force deletion of directories even if not empty\n");
 131   rprintf(F,"     --numeric-ids           don't map uid/gid values by user/group name\n");
 132   rprintf(F,"     --timeout=TIME          set IO timeout in seconds\n");
 133   rprintf(F," -I, --ignore-times          don't exclude files that match length and time\n");
 134   rprintf(F,"     --size-only             only use file size when determining if a file should be transferred\n");
 135   rprintf(F," -T  --temp-dir=DIR          create temporary files in directory DIR\n");
 136   rprintf(F,"     --compare-dest=DIR      also compare destination files relative to DIR\n");
 137   rprintf(F," -P                          equivalent to --partial --progress\n");
 138   rprintf(F," -z, --compress              compress file data\n");
 139   rprintf(F,"     --exclude=PATTERN       exclude files matching PATTERN\n");
 140   rprintf(F,"     --exclude-from=FILE     exclude patterns listed in FILE\n");
 141   rprintf(F,"     --include=PATTERN       don't exclude files matching PATTERN\n");
 142   rprintf(F,"     --include-from=FILE     don't exclude patterns listed in FILE\n");
 143   rprintf(F,"     --version               print version number\n");
 144   rprintf(F,"     --daemon                run as a rsync daemon\n");
 145   rprintf(F,"     --address               bind to the specified address\n");
 146   rprintf(F,"     --config=FILE           specify alternate rsyncd.conf file\n");
 147   rprintf(F,"     --port=PORT             specify alternate rsyncd port number\n");
 148   rprintf(F,"     --stats                 give some file transfer stats\n");
 149   rprintf(F,"     --progress              show progress during transfer\n");
 150   rprintf(F,"     --log-format=FORMAT     log file transfers using specified format\n");
 151   rprintf(F,"     --password-file=FILE    get password from FILE\n");
 152   rprintf(F," -h, --help                  show this help screen\n");
 153
 154   rprintf(F,"\n");
 155
 156   rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
 157   rprintf(F,"See http://rsync.samba.org/ for updates and bug reports\n");
 158 }
 159
 160 enum {OPT_VERSION, OPT_SUFFIX, OPT_SENDER, OPT_SERVER, OPT_EXCLUDE,
 161       OPT_EXCLUDE_FROM, OPT_DELETE, OPT_DELETE_EXCLUDED, OPT_NUMERIC_IDS,
 162       OPT_RSYNC_PATH, OPT_FORCE, OPT_TIMEOUT, OPT_DAEMON, OPT_CONFIG, OPT_PORT,
 163       OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_STATS, OPT_PARTIAL, OPT_PROGRESS,
 164       OPT_COPY_UNSAFE_LINKS, OPT_SAFE_LINKS, OPT_COMPARE_DEST,
 165       OPT_LOG_FORMAT, OPT_PASSWORD_FILE, OPT_SIZE_ONLY, OPT_ADDRESS};
 166
 167 static char *short_options = "oblLWHpguDCtcahvqrRIxnSe:B:T:zP";
 168
 169 static struct option long_options[] = {
 170   {"version",     0,     0,    OPT_VERSION},
 171   {"server",      0,     0,    OPT_SERVER},
 172   {"sender",      0,     0,    OPT_SENDER},
 173   {"delete",      0,     0,    OPT_DELETE},
 174   {"delete-excluded", 0, 0,    OPT_DELETE_EXCLUDED},
 175   {"force",       0,     0,    OPT_FORCE},
 176   {"numeric-ids", 0,     0,    OPT_NUMERIC_IDS},
 177   {"exclude",     1,     0,    OPT_EXCLUDE},
 178   {"exclude-from",1,     0,    OPT_EXCLUDE_FROM},
 179   {"include",     1,     0,    OPT_INCLUDE},
 180   {"include-from",1,     0,    OPT_INCLUDE_FROM},
 181   {"rsync-path",  1,     0,    OPT_RSYNC_PATH},
 182   {"password-file", 1,  0,     OPT_PASSWORD_FILE},
 183   {"one-file-system",0,  0,    'x'},
 184   {"ignore-times",0,     0,    'I'},
 185   {"size-only",   0,     0,    OPT_SIZE_ONLY},
 186   {"help",        0,     0,    'h'},
 187   {"dry-run",     0,     0,    'n'},
 188   {"sparse",      0,     0,    'S'},
 189   {"cvs-exclude", 0,     0,    'C'},
 190   {"archive",     0,     0,    'a'},
 191   {"checksum",    0,     0,    'c'},
 192   {"backup",      0,     0,    'b'},
 193   {"update",      0,     0,    'u'},
 194   {"verbose",     0,     0,    'v'},
 195   {"quiet",       0,     0,    'q'},
 196   {"recursive",   0,     0,    'r'},
 197   {"relative",    0,     0,    'R'},
 198   {"devices",     0,     0,    'D'},
 199   {"perms",       0,     0,    'p'},
 200   {"links",       0,     0,    'l'},
 201   {"copy-links",  0,     0,    'L'},
 202   {"copy-unsafe-links", 0, 0,  OPT_COPY_UNSAFE_LINKS},
 203   {"safe-links",  0,     0,    OPT_SAFE_LINKS},
 204   {"whole-file",  0,     0,    'W'},
 205   {"hard-links",  0,     0,    'H'},
 206   {"owner",       0,     0,    'o'},
 207   {"group",       0,     0,    'g'},
 208   {"times",       0,     0,    't'},
 209   {"rsh",         1,     0,    'e'},
 210   {"suffix",      1,     0,    OPT_SUFFIX},
 211   {"block-size",  1,     0,    'B'},
 212   {"timeout",     1,     0,    OPT_TIMEOUT},
 213   {"temp-dir",    1,     0,    'T'},
 214   {"compare-dest", 1,    0,    OPT_COMPARE_DEST},
 215   {"compress",    0,     0,    'z'},
 216   {"daemon",      0,     0,    OPT_DAEMON},
 217   {"stats",       0,     0,    OPT_STATS},
 218   {"progress",    0,     0,    OPT_PROGRESS},
 219   {"partial",     0,     0,    OPT_PARTIAL},
 220   {"config",      1,     0,    OPT_CONFIG},
 221   {"port",        1,     0,    OPT_PORT},
 222   {"log-format",  1,     0,    OPT_LOG_FORMAT},
 223   {"address",     1,     0,    OPT_ADDRESS},
 224   {0,0,0,0}};
 225
 226
 227 static char err_buf[100];
 228
 229 void option_error(void)
 230 {
 231         if (err_buf[0]) {
 232                 rprintf(FLOG,"%s", err_buf);
 233                 rprintf(FERROR,"%s", err_buf);
 234         } else {
 235                 rprintf(FLOG,"Error parsing options - unsupported option?\n");
 236                 rprintf(FERROR,"Error parsing options - unsupported option?\n");
 237         }
 238         exit_cleanup(RERR_UNSUPPORTED);
 239 }
 240
 241 /* check to see if we should refuse this option */
 242 static int check_refuse_options(char *ref, int opt)
 243 {
 244         int i, len;
 245         char *p;
 246         const char *name;
 247
 248         for (i=0; long_options[i].name; i++) {
 249                 if (long_options[i].val == opt) break;
 250         }
 251
 252         if (!long_options[i].name) return 0;
 253
 254         name = long_options[i].name;
 255         len = strlen(name);
 256
 257         while ((p = strstr(ref,name))) {
 258                 if ((p==ref || p[-1]==' ') &&
 259                     (p[len] == ' ' || p[len] == 0)) {
 260                         slprintf(err_buf,sizeof(err_buf),
 261                                  "The '%s' option is not supported by this server\n", name);
 262                         return 1;
 263                 }
 264                 ref += len;
 265         }
 266         return 0;
 267 }
 268
 269
 270 int parse_arguments(int argc, char *argv[], int frommain)
 271 {
 272         int opt;
 273         int option_index;
 274         char *ref = lp_refuse_options(module_id);
 275
 276         while ((opt = getopt_long(argc, argv,
 277                                   short_options, long_options, &option_index))
 278                != -1) {
 279
 280                 if (ref) {
 281                         if (check_refuse_options(ref, opt)) return 0;
 282                 }
 283
 284                 switch (opt) {
 285                 case OPT_VERSION:
 286                         rprintf(FINFO,"rsync version %s  protocol version %d\n\n",
 287                                 VERSION,PROTOCOL_VERSION);
 288                         rprintf(FINFO,"Written by Andrew Tridgell and Paul Mackerras\n");
 289                         exit_cleanup(0);
 290
 291                 case OPT_SUFFIX:
 292                         backup_suffix = optarg;
 293                         break;
 294
 295                 case OPT_RSYNC_PATH:
 296                         rsync_path = optarg;
 297                         break;
 298
 299                 case OPT_PASSWORD_FILE:
 300                         password_file =optarg;
 301                         break;
 302
 303                 case 'I':
 304                         ignore_times = 1;
 305                         break;
 306
 307                 case OPT_SIZE_ONLY:
 308                         size_only = 1;
 309                         break;
 310
 311                 case 'x':
 312                         one_file_system=1;
 313                         break;
 314
 315                 case OPT_DELETE:
 316                         delete_mode = 1;
 317                         break;
 318
 319                 case OPT_DELETE_EXCLUDED:
 320                         delete_excluded = 1;
 321                         delete_mode = 1;
 322                         break;
 323
 324                 case OPT_FORCE:
 325                         force_delete = 1;
 326                         break;
 327
 328                 case OPT_NUMERIC_IDS:
 329                         numeric_ids = 1;
 330                         break;
 331
 332                 case OPT_EXCLUDE:
 333                         add_exclude(optarg, 0);
 334                         break;
 335
 336                 case OPT_INCLUDE:
 337                         add_exclude(optarg, 1);
 338                         break;
 339
 340                 case OPT_EXCLUDE_FROM:
 341                         add_exclude_file(optarg,1, 0);
 342                         break;
 343
 344                 case OPT_INCLUDE_FROM:
 345                         add_exclude_file(optarg,1, 1);
 346                         break;
 347
 348                 case OPT_COPY_UNSAFE_LINKS:
 349                         copy_unsafe_links=1;
 350                         break;
 351
 352                 case OPT_SAFE_LINKS:
 353                         safe_symlinks=1;
 354                         break;
 355
 356                 case 'h':
 357                         usage(FINFO);
 358                         exit_cleanup(0);
 359
 360                 case 'b':
 361                         make_backups=1;
 362                         break;
 363
 364                 case 'n':
 365                         dry_run=1;
 366                         break;
 367
 368                 case 'S':
 369                         sparse_files=1;
 370                         break;
 371
 372                 case 'C':
 373                         cvs_exclude=1;
 374                         break;
 375
 376                 case 'u':
 377                         update_only=1;
 378                         break;
 379
 380                 case 'l':
 381                         preserve_links=1;
 382                         break;
 383
 384                 case 'L':
 385                         copy_links=1;
 386                         break;
 387
 388                 case 'W':
 389                         whole_file=1;
 390                         break;
 391
 392                 case 'H':
 393 #if SUPPORT_HARD_LINKS
 394                         preserve_hard_links=1;
 395 #else
 396                         slprintf(err_buf,sizeof(err_buf),"hard links are not supported on this server\n");
 397                         rprintf(FERROR,"ERROR: hard links not supported on this platform\n");
 398                         return 0;
 399 #endif
 400                         break;
 401
 402                 case 'p':
 403                         preserve_perms=1;
 404                         break;
 405
 406                 case 'o':
 407                         preserve_uid=1;
 408                         break;
 409
 410                 case 'g':
 411                         preserve_gid=1;
 412                         break;
 413
 414                 case 'D':
 415                         preserve_devices=1;
 416                         break;
 417
 418                 case 't':
 419                         preserve_times=1;
 420                         break;
 421
 422                 case 'c':
 423                         always_checksum=1;
 424                         break;
 425
 426                 case 'v':
 427                         verbose++;
 428                         break;
 429
 430                 case 'q':
 431                         if (frommain) quiet++;
 432                         break;
 433
 434                 case 'a':
 435                         recurse=1;
 436 #if SUPPORT_LINKS
 437                         preserve_links=1;
 438 #endif
 439                         preserve_perms=1;
 440                         preserve_times=1;
 441                         preserve_gid=1;
 442                         if (am_root) {
 443                                 preserve_devices=1;
 444                                 preserve_uid=1;
 445                         }
 446                         break;
 447
 448                 case OPT_SERVER:
 449                         am_server = 1;
 450                         break;
 451
 452                 case OPT_SENDER:
 453                         if (!am_server) {
 454                                 usage(FERROR);
 455                                 exit_cleanup(RERR_SYNTAX);
 456                         }
 457                         am_sender = 1;
 458                         break;
 459
 460                 case 'r':
 461                         recurse = 1;
 462                         break;
 463
 464                 case 'R':
 465                         relative_paths = 1;
 466                         break;
 467
 468                 case 'e':
 469                         shell_cmd = optarg;
 470                         break;
 471
 472                 case 'B':
 473                         block_size = atoi(optarg);
 474                         break;
 475
 476                 case OPT_TIMEOUT:
 477                         io_timeout = atoi(optarg);
 478                         break;
 479
 480                 case 'T':
 481                         tmpdir = optarg;
 482                         break;
 483
 484                 case OPT_COMPARE_DEST:
 485                         compare_dest = optarg;
 486                         break;
 487
 488                 case 'z':
 489                         do_compression = 1;
 490                         break;
 491
 492                 case OPT_DAEMON:
 493                         am_daemon = 1;
 494                         break;
 495
 496                 case OPT_STATS:
 497                         do_stats = 1;
 498                         break;
 499
 500                 case OPT_PROGRESS:
 501                         do_progress = 1;
 502                         break;
 503
 504                 case OPT_PARTIAL:
 505                         keep_partial = 1;
 506                         break;
 507
 508                 case 'P':
 509                         do_progress = 1;
 510                         keep_partial = 1;
 511                         break;
 512
 513                 case OPT_CONFIG:
 514                         config_file = optarg;
 515                         break;
 516
 517                 case OPT_PORT:
 518                         rsync_port = atoi(optarg);
 519                         break;
 520
 521                 case OPT_LOG_FORMAT:
 522                         log_format = optarg;
 523                         break;
 524
 525                 case OPT_ADDRESS:
 526                         {
 527                                 struct in_addr *ia;
 528                                 if ((ia = ip_address(optarg))) {
 529                                         socket_address = *ia;
 530                                 }
 531                         }
 532                         break;
 533
 534                 default:
 535                         slprintf(err_buf,sizeof(err_buf),"unrecognised option\n");
 536                         return 0;
 537                 }
 538         }
 539         return 1;
 540 }
 541
 542
 543 void server_options(char **args,int *argc)
 544 {
 545         int ac = *argc;
 546         static char argstr[50];
 547         static char bsize[30];
 548         static char iotime[30];
 549         int i, x;
 550
 551         args[ac++] = "--server";
 552
 553         if (!am_sender)
 554                 args[ac++] = "--sender";
 555
 556         x = 1;
 557         argstr[0] = '-';
 558         for (i=0;i<verbose;i++)
 559                 argstr[x++] = 'v';
 560         /* the -q option is intentionally left out */
 561         if (make_backups)
 562                 argstr[x++] = 'b';
 563         if (update_only)
 564                 argstr[x++] = 'u';
 565         if (dry_run)
 566                 argstr[x++] = 'n';
 567         if (preserve_links)
 568                 argstr[x++] = 'l';
 569         if (copy_links)
 570                 argstr[x++] = 'L';
 571         if (whole_file)
 572                 argstr[x++] = 'W';
 573         if (preserve_hard_links)
 574                 argstr[x++] = 'H';
 575         if (preserve_uid)
 576                 argstr[x++] = 'o';
 577         if (preserve_gid)
 578                 argstr[x++] = 'g';
 579         if (preserve_devices)
 580                 argstr[x++] = 'D';
 581         if (preserve_times)
 582                 argstr[x++] = 't';
 583         if (preserve_perms)
 584                 argstr[x++] = 'p';
 585         if (recurse)
 586                 argstr[x++] = 'r';
 587         if (always_checksum)
 588                 argstr[x++] = 'c';
 589         if (cvs_exclude)
 590                 argstr[x++] = 'C';
 591         if (ignore_times)
 592                 argstr[x++] = 'I';
 593         if (relative_paths)
 594                 argstr[x++] = 'R';
 595         if (one_file_system)
 596                 argstr[x++] = 'x';
 597         if (sparse_files)
 598                 argstr[x++] = 'S';
 599         if (do_compression)
 600                 argstr[x++] = 'z';
 601         argstr[x] = 0;
 602
 603         if (x != 1) args[ac++] = argstr;
 604
 605         if (block_size != BLOCK_SIZE) {
 606                 sprintf(bsize,"-B%d",block_size);
 607                 args[ac++] = bsize;
 608         }
 609
 610         if (io_timeout) {
 611                 sprintf(iotime,"--timeout=%d",io_timeout);
 612                 args[ac++] = iotime;
 613         }
 614
 615         if (strcmp(backup_suffix, BACKUP_SUFFIX)) {
 616                 args[ac++] = "--suffix";
 617                 args[ac++] = backup_suffix;
 618         }
 619
 620         if (delete_mode && !delete_excluded)
 621                 args[ac++] = "--delete";
 622
 623         if (delete_excluded)
 624                 args[ac++] = "--delete-excluded";
 625
 626         if (size_only)
 627                 args[ac++] = "--size-only";
 628
 629         if (keep_partial)
 630                 args[ac++] = "--partial";
 631
 632         if (force_delete)
 633                 args[ac++] = "--force";
 634
 635         if (copy_unsafe_links)
 636                 args[ac++] = "--copy-unsafe-links";
 637
 638         if (safe_symlinks)
 639                 args[ac++] = "--safe-links";
 640
 641         if (numeric_ids)
 642                 args[ac++] = "--numeric-ids";
 643
 644         if (tmpdir) {
 645                 args[ac++] = "--temp-dir";
 646                 args[ac++] = tmpdir;
 647         }
 648
 649         if (compare_dest && am_sender) {
 650                 /* the server only needs this option if it is not the sender,
 651                  *   and it may be an older version that doesn't know this
 652                  *   option, so don't send it if client is the sender.
 653                  */
 654                 args[ac++] = "--compare-dest";
 655                 args[ac++] = compare_dest;
 656         }
 657
 658
 659         *argc = ac;
 660 }
 661