| 1 | /* Tar -- a tape archiver. |
| 2 | Copyright (C) 1988, 1992, 1993 Free Software Foundation |
| 3 | |
| 4 | This file is part of GNU Tar. |
| 5 | |
| 6 | GNU Tar 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, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | GNU Tar 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 GNU Tar; see the file COPYING. If not, write to |
| 18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 19 | |
| 20 | /* |
| 21 | * A tar (tape archiver) program. |
| 22 | * |
| 23 | * Written by John Gilmore, ihnp4!hoptoad!gnu, starting 25 Aug 85. |
| 24 | */ |
| 25 | |
| 26 | #include <stdio.h> |
| 27 | #include <sys/types.h> /* Needed for typedefs in tar.h */ |
| 28 | #include "getopt.h" |
| 29 | |
| 30 | /* |
| 31 | * The following causes "tar.h" to produce definitions of all the |
| 32 | * global variables, rather than just "extern" declarations of them. |
| 33 | */ |
| 34 | #define TAR_EXTERN /**/ |
| 35 | #include "tar.h" |
| 36 | |
| 37 | #include "port.h" |
| 38 | #include "regex.h" |
| 39 | #include "fnmatch.h" |
| 40 | |
| 41 | /* |
| 42 | * We should use a conversion routine that does reasonable error |
| 43 | * checking -- atoi doesn't. For now, punt. FIXME. |
| 44 | */ |
| 45 | #define intconv atoi |
| 46 | PTR ck_malloc (); |
| 47 | PTR ck_realloc (); |
| 48 | extern int getoldopt (); |
| 49 | extern void read_and (); |
| 50 | extern void list_archive (); |
| 51 | extern void extract_archive (); |
| 52 | extern void diff_archive (); |
| 53 | extern void create_archive (); |
| 54 | extern void update_archive (); |
| 55 | extern void junk_archive (); |
| 56 | extern void init_volume_number (); |
| 57 | extern void closeout_volume_number (); |
| 58 | |
| 59 | /* JF */ |
| 60 | extern time_t get_date (); |
| 61 | |
| 62 | time_t new_time; |
| 63 | |
| 64 | static FILE *namef; /* File to read names from */ |
| 65 | static char **n_argv; /* Argv used by name routines */ |
| 66 | static int n_argc; /* Argc used by name routines */ |
| 67 | static char **n_ind; /* Store an array of names */ |
| 68 | static int n_indalloc; /* How big is the array? */ |
| 69 | static int n_indused; /* How many entries does it have? */ |
| 70 | static int n_indscan; /* How many of the entries have we scanned? */ |
| 71 | |
| 72 | |
| 73 | extern FILE *msg_file; |
| 74 | |
| 75 | int check_exclude (); |
| 76 | void add_exclude (); |
| 77 | void add_exclude_file (); |
| 78 | void addname (); |
| 79 | void describe (); |
| 80 | void diff_init (); |
| 81 | void extr_init (); |
| 82 | int is_regex (); |
| 83 | void name_add (); |
| 84 | void name_init (); |
| 85 | void options (); |
| 86 | char *un_quote_string (); |
| 87 | |
| 88 | #ifndef S_ISLNK |
| 89 | #define lstat stat |
| 90 | #endif |
| 91 | |
| 92 | #ifndef DEFBLOCKING |
| 93 | #define DEFBLOCKING 20 |
| 94 | #endif |
| 95 | |
| 96 | #ifndef DEF_AR_FILE |
| 97 | #define DEF_AR_FILE "tar.out" |
| 98 | #endif |
| 99 | |
| 100 | /* For long options that unconditionally set a single flag, we have getopt |
| 101 | do it. For the others, we share the code for the equivalent short |
| 102 | named option, the name of which is stored in the otherwise-unused `val' |
| 103 | field of the `struct option'; for long options that have no equivalent |
| 104 | short option, we use nongraphic characters as pseudo short option |
| 105 | characters, starting (for no particular reason) with character 10. */ |
| 106 | |
| 107 | struct option long_options[] = |
| 108 | { |
| 109 | {"create", 0, 0, 'c'}, |
| 110 | {"append", 0, 0, 'r'}, |
| 111 | {"extract", 0, 0, 'x'}, |
| 112 | {"get", 0, 0, 'x'}, |
| 113 | {"list", 0, 0, 't'}, |
| 114 | {"update", 0, 0, 'u'}, |
| 115 | {"catenate", 0, 0, 'A'}, |
| 116 | {"concatenate", 0, 0, 'A'}, |
| 117 | {"compare", 0, 0, 'd'}, |
| 118 | {"diff", 0, 0, 'd'}, |
| 119 | {"delete", 0, 0, 14}, |
| 120 | {"help", 0, 0, 12}, |
| 121 | |
| 122 | {"null", 0, 0, 16}, |
| 123 | {"directory", 1, 0, 'C'}, |
| 124 | {"record-number", 0, &f_sayblock, 1}, |
| 125 | {"files-from", 1, 0, 'T'}, |
| 126 | {"label", 1, 0, 'V'}, |
| 127 | {"exclude-from", 1, 0, 'X'}, |
| 128 | {"exclude", 1, 0, 15}, |
| 129 | {"file", 1, 0, 'f'}, |
| 130 | {"block-size", 1, 0, 'b'}, |
| 131 | {"version", 0, 0, 11}, |
| 132 | {"verbose", 0, 0, 'v'}, |
| 133 | {"totals", 0, &f_totals, 1}, |
| 134 | |
| 135 | {"read-full-blocks", 0, &f_reblock, 1}, |
| 136 | {"starting-file", 1, 0, 'K'}, |
| 137 | {"to-stdout", 0, &f_exstdout, 1}, |
| 138 | {"ignore-zeros", 0, &f_ignorez, 1}, |
| 139 | {"keep-old-files", 0, 0, 'k'}, |
| 140 | {"same-permissions", 0, &f_use_protection, 1}, |
| 141 | {"preserve-permissions", 0, &f_use_protection, 1}, |
| 142 | {"modification-time", 0, &f_modified, 1}, |
| 143 | {"preserve", 0, 0, 10}, |
| 144 | {"same-order", 0, &f_sorted_names, 1}, |
| 145 | {"same-owner", 0, &f_do_chown, 1}, |
| 146 | {"preserve-order", 0, &f_sorted_names, 1}, |
| 147 | |
| 148 | {"newer", 1, 0, 'N'}, |
| 149 | {"after-date", 1, 0, 'N'}, |
| 150 | {"newer-mtime", 1, 0, 13}, |
| 151 | {"incremental", 0, 0, 'G'}, |
| 152 | {"listed-incremental", 1, 0, 'g'}, |
| 153 | {"multi-volume", 0, &f_multivol, 1}, |
| 154 | {"info-script", 1, 0, 'F'}, |
| 155 | {"new-volume-script", 1, 0, 'F'}, |
| 156 | {"absolute-paths", 0, &f_absolute_paths, 1}, |
| 157 | {"interactive", 0, &f_confirm, 1}, |
| 158 | {"confirmation", 0, &f_confirm, 1}, |
| 159 | |
| 160 | {"verify", 0, &f_verify, 1}, |
| 161 | {"dereference", 0, &f_follow_links, 1}, |
| 162 | {"one-file-system", 0, &f_local_filesys, 1}, |
| 163 | {"old-archive", 0, 0, 'o'}, |
| 164 | {"portability", 0, 0, 'o'}, |
| 165 | {"compress", 0, 0, 'Z'}, |
| 166 | {"uncompress", 0, 0, 'Z'}, |
| 167 | {"block-compress", 0, &f_compress_block, 1}, |
| 168 | {"gzip", 0, 0, 'z'}, |
| 169 | {"ungzip", 0, 0, 'z'}, |
| 170 | {"use-compress-program", 1, 0, 18}, |
| 171 | |
| 172 | |
| 173 | {"same-permissions", 0, &f_use_protection, 1}, |
| 174 | {"sparse", 0, &f_sparse_files, 1}, |
| 175 | {"tape-length", 1, 0, 'L'}, |
| 176 | {"remove-files", 0, &f_remove_files, 1}, |
| 177 | {"ignore-failed-read", 0, &f_ignore_failed_read, 1}, |
| 178 | {"checkpoint", 0, &f_checkpoint, 1}, |
| 179 | {"show-omitted-dirs", 0, &f_show_omitted_dirs, 1}, |
| 180 | {"volno-file", 1, 0, 17}, |
| 181 | {"force-local", 0, &f_force_local, 1}, |
| 182 | {"atime-preserve", 0, &f_atime_preserve, 1}, |
| 183 | |
| 184 | {0, 0, 0, 0} |
| 185 | }; |
| 186 | |
| 187 | /* |
| 188 | * Main routine for tar. |
| 189 | */ |
| 190 | void |
| 191 | main (argc, argv) |
| 192 | int argc; |
| 193 | char **argv; |
| 194 | { |
| 195 | extern char version_string[]; |
| 196 | |
| 197 | tar = argv[0]; /* JF: was "tar" Set program name */ |
| 198 | filename_terminator = '\n'; |
| 199 | errors = 0; |
| 200 | |
| 201 | options (argc, argv); |
| 202 | |
| 203 | if (!n_argv) |
| 204 | name_init (argc, argv); |
| 205 | |
| 206 | if (f_volno_file) |
| 207 | init_volume_number (); |
| 208 | |
| 209 | switch (cmd_mode) |
| 210 | { |
| 211 | case CMD_CAT: |
| 212 | case CMD_UPDATE: |
| 213 | case CMD_APPEND: |
| 214 | update_archive (); |
| 215 | break; |
| 216 | case CMD_DELETE: |
| 217 | junk_archive (); |
| 218 | break; |
| 219 | case CMD_CREATE: |
| 220 | create_archive (); |
| 221 | if (f_totals) |
| 222 | fprintf (stderr, "Total bytes written: %d\n", tot_written); |
| 223 | break; |
| 224 | case CMD_EXTRACT: |
| 225 | if (f_volhdr) |
| 226 | { |
| 227 | const char *err; |
| 228 | label_pattern = (struct re_pattern_buffer *) |
| 229 | ck_malloc (sizeof *label_pattern); |
| 230 | err = re_compile_pattern (f_volhdr, strlen (f_volhdr), |
| 231 | label_pattern); |
| 232 | if (err) |
| 233 | { |
| 234 | fprintf (stderr, "Bad regular expression: %s\n", |
| 235 | err); |
| 236 | errors++; |
| 237 | break; |
| 238 | } |
| 239 | |
| 240 | } |
| 241 | extr_init (); |
| 242 | read_and (extract_archive); |
| 243 | break; |
| 244 | case CMD_LIST: |
| 245 | if (f_volhdr) |
| 246 | { |
| 247 | const char *err; |
| 248 | label_pattern = (struct re_pattern_buffer *) |
| 249 | ck_malloc (sizeof *label_pattern); |
| 250 | err = re_compile_pattern (f_volhdr, strlen (f_volhdr), |
| 251 | label_pattern); |
| 252 | if (err) |
| 253 | { |
| 254 | fprintf (stderr, "Bad regular expression: %s\n", |
| 255 | err); |
| 256 | errors++; |
| 257 | break; |
| 258 | } |
| 259 | } |
| 260 | read_and (list_archive); |
| 261 | #if 0 |
| 262 | if (!errors) |
| 263 | errors = different; |
| 264 | #endif |
| 265 | break; |
| 266 | case CMD_DIFF: |
| 267 | diff_init (); |
| 268 | read_and (diff_archive); |
| 269 | break; |
| 270 | case CMD_VERSION: |
| 271 | fprintf (stderr, "%s\n", version_string); |
| 272 | break; |
| 273 | case CMD_NONE: |
| 274 | msg ("you must specify exactly one of the r, c, t, x, or d options\n"); |
| 275 | fprintf (stderr, "For more information, type ``%s --help''.\n", tar); |
| 276 | exit (EX_ARGSBAD); |
| 277 | } |
| 278 | if (f_volno_file) |
| 279 | closeout_volume_number (); |
| 280 | exit (errors); |
| 281 | /* NOTREACHED */ |
| 282 | } |
| 283 | |
| 284 | |
| 285 | /* |
| 286 | * Parse the options for tar. |
| 287 | */ |
| 288 | void |
| 289 | options (argc, argv) |
| 290 | int argc; |
| 291 | char **argv; |
| 292 | { |
| 293 | register int c; /* Option letter */ |
| 294 | int ind = -1; |
| 295 | |
| 296 | /* Set default option values */ |
| 297 | blocking = DEFBLOCKING; /* From Makefile */ |
| 298 | ar_files = (char **) ck_malloc (sizeof (char *) * 10); |
| 299 | ar_files_len = 10; |
| 300 | n_ar_files = 0; |
| 301 | cur_ar_file = 0; |
| 302 | |
| 303 | /* Parse options */ |
| 304 | while ((c = getoldopt (argc, argv, |
| 305 | "-01234567Ab:BcC:df:F:g:GhikK:lL:mMN:oOpPrRsStT:uvV:wWxX:zZ", |
| 306 | long_options, &ind)) != EOF) |
| 307 | { |
| 308 | switch (c) |
| 309 | { |
| 310 | case 0: /* long options that set a single flag */ |
| 311 | break; |
| 312 | case 1: |
| 313 | /* File name or non-parsed option */ |
| 314 | name_add (optarg); |
| 315 | break; |
| 316 | case 'C': |
| 317 | name_add ("-C"); |
| 318 | name_add (optarg); |
| 319 | break; |
| 320 | case 10: /* preserve */ |
| 321 | f_use_protection = f_sorted_names = 1; |
| 322 | break; |
| 323 | case 11: |
| 324 | if (cmd_mode != CMD_NONE) |
| 325 | goto badopt; |
| 326 | cmd_mode = CMD_VERSION; |
| 327 | break; |
| 328 | case 12: /* help */ |
| 329 | printf ("This is GNU tar, the tape archiving program.\n"); |
| 330 | describe (); |
| 331 | exit (1); |
| 332 | case 13: |
| 333 | f_new_files++; |
| 334 | goto get_newer; |
| 335 | |
| 336 | case 14: /* Delete in the archive */ |
| 337 | if (cmd_mode != CMD_NONE) |
| 338 | goto badopt; |
| 339 | cmd_mode = CMD_DELETE; |
| 340 | break; |
| 341 | |
| 342 | case 15: |
| 343 | f_exclude++; |
| 344 | add_exclude (optarg); |
| 345 | break; |
| 346 | |
| 347 | case 16: /* -T reads null terminated filenames. */ |
| 348 | filename_terminator = '\0'; |
| 349 | break; |
| 350 | |
| 351 | case 17: |
| 352 | f_volno_file = optarg; |
| 353 | break; |
| 354 | |
| 355 | case 18: |
| 356 | if (f_compressprog) |
| 357 | { |
| 358 | msg ("Only one compression option permitted\n"); |
| 359 | exit (EX_ARGSBAD); |
| 360 | } |
| 361 | f_compressprog = optarg; |
| 362 | break; |
| 363 | |
| 364 | case 'g': /* We are making a GNU dump; save |
| 365 | directories at the beginning of |
| 366 | the archive, and include in each |
| 367 | directory its contents */ |
| 368 | if (f_oldarch) |
| 369 | goto badopt; |
| 370 | f_gnudump++; |
| 371 | gnu_dumpfile = optarg; |
| 372 | break; |
| 373 | |
| 374 | |
| 375 | case '0': |
| 376 | case '1': |
| 377 | case '2': |
| 378 | case '3': |
| 379 | case '4': |
| 380 | case '5': |
| 381 | case '6': |
| 382 | case '7': |
| 383 | { |
| 384 | /* JF this'll have to be modified for other |
| 385 | systems, of course! */ |
| 386 | int d, add; |
| 387 | static char buf[50]; |
| 388 | |
| 389 | d = getoldopt (argc, argv, "lmh"); |
| 390 | #ifdef MAYBEDEF |
| 391 | sprintf (buf, "/dev/rmt/%d%c", c, d); |
| 392 | #else |
| 393 | #ifndef LOW_NUM |
| 394 | #define LOW_NUM 0 |
| 395 | #define MID_NUM 8 |
| 396 | #define HGH_NUM 16 |
| 397 | #endif |
| 398 | if (d == 'l') |
| 399 | add = LOW_NUM; |
| 400 | else if (d == 'm') |
| 401 | add = MID_NUM; |
| 402 | else if (d == 'h') |
| 403 | add = HGH_NUM; |
| 404 | else |
| 405 | goto badopt; |
| 406 | |
| 407 | sprintf (buf, "/dev/rmt%d", add + c - '0'); |
| 408 | #endif |
| 409 | if (n_ar_files == ar_files_len) |
| 410 | ar_files |
| 411 | = (char **) |
| 412 | ck_malloc (sizeof (char *) |
| 413 | * (ar_files_len *= 2)); |
| 414 | ar_files[n_ar_files++] = buf; |
| 415 | } |
| 416 | break; |
| 417 | |
| 418 | case 'A': /* Arguments are tar files, |
| 419 | just cat them onto the end |
| 420 | of the archive. */ |
| 421 | if (cmd_mode != CMD_NONE) |
| 422 | goto badopt; |
| 423 | cmd_mode = CMD_CAT; |
| 424 | break; |
| 425 | |
| 426 | case 'b': /* Set blocking factor */ |
| 427 | blocking = intconv (optarg); |
| 428 | break; |
| 429 | |
| 430 | case 'B': /* Try to reblock input */ |
| 431 | f_reblock++; /* For reading 4.2BSD pipes */ |
| 432 | break; |
| 433 | |
| 434 | case 'c': /* Create an archive */ |
| 435 | if (cmd_mode != CMD_NONE) |
| 436 | goto badopt; |
| 437 | cmd_mode = CMD_CREATE; |
| 438 | break; |
| 439 | |
| 440 | #if 0 |
| 441 | case 'C': |
| 442 | if (chdir (optarg) < 0) |
| 443 | msg_perror ("Can't change directory to %d", optarg); |
| 444 | break; |
| 445 | #endif |
| 446 | |
| 447 | case 'd': /* Find difference tape/disk */ |
| 448 | if (cmd_mode != CMD_NONE) |
| 449 | goto badopt; |
| 450 | cmd_mode = CMD_DIFF; |
| 451 | break; |
| 452 | |
| 453 | case 'f': /* Use ar_file for the archive */ |
| 454 | if (n_ar_files == ar_files_len) |
| 455 | ar_files |
| 456 | = (char **) ck_malloc (sizeof (char *) |
| 457 | * (ar_files_len *= 2)); |
| 458 | |
| 459 | ar_files[n_ar_files++] = optarg; |
| 460 | break; |
| 461 | |
| 462 | case 'F': |
| 463 | /* Since -F is only useful with -M , make it implied */ |
| 464 | f_run_script_at_end++;/* run this script at the end */ |
| 465 | info_script = optarg; /* of each tape */ |
| 466 | f_multivol++; |
| 467 | break; |
| 468 | |
| 469 | case 'G': /* We are making a GNU dump; save |
| 470 | directories at the beginning of |
| 471 | the archive, and include in each |
| 472 | directory its contents */ |
| 473 | if (f_oldarch) |
| 474 | goto badopt; |
| 475 | f_gnudump++; |
| 476 | gnu_dumpfile = 0; |
| 477 | break; |
| 478 | |
| 479 | case 'h': |
| 480 | f_follow_links++; /* follow symbolic links */ |
| 481 | break; |
| 482 | |
| 483 | case 'i': |
| 484 | f_ignorez++; /* Ignore zero records (eofs) */ |
| 485 | /* |
| 486 | * This can't be the default, because Unix tar |
| 487 | * writes two records of zeros, then pads out the |
| 488 | * block with garbage. |
| 489 | */ |
| 490 | break; |
| 491 | |
| 492 | case 'k': /* Don't overwrite files */ |
| 493 | #ifdef NO_OPEN3 |
| 494 | msg ("can't keep old files on this system"); |
| 495 | exit (EX_ARGSBAD); |
| 496 | #else |
| 497 | f_keep++; |
| 498 | #endif |
| 499 | break; |
| 500 | |
| 501 | case 'K': |
| 502 | f_startfile++; |
| 503 | addname (optarg); |
| 504 | break; |
| 505 | |
| 506 | case 'l': /* When dumping directories, don't |
| 507 | dump files/subdirectories that are |
| 508 | on other filesystems. */ |
| 509 | f_local_filesys++; |
| 510 | break; |
| 511 | |
| 512 | case 'L': |
| 513 | tape_length = intconv (optarg); |
| 514 | f_multivol++; |
| 515 | break; |
| 516 | case 'm': |
| 517 | f_modified++; |
| 518 | break; |
| 519 | |
| 520 | case 'M': /* Make Multivolume archive: |
| 521 | When we can't write any more |
| 522 | into the archive, re-open it, |
| 523 | and continue writing */ |
| 524 | f_multivol++; |
| 525 | break; |
| 526 | |
| 527 | case 'N': /* Only write files newer than X */ |
| 528 | get_newer: |
| 529 | f_new_files++; |
| 530 | new_time = get_date (optarg, (PTR) 0); |
| 531 | if (new_time == (time_t) - 1) |
| 532 | { |
| 533 | msg ("invalid date format `%s'", optarg); |
| 534 | exit (EX_ARGSBAD); |
| 535 | } |
| 536 | break; |
| 537 | |
| 538 | case 'o': /* Generate old archive */ |
| 539 | if (f_gnudump /* || f_dironly */ ) |
| 540 | goto badopt; |
| 541 | f_oldarch++; |
| 542 | break; |
| 543 | |
| 544 | case 'O': |
| 545 | f_exstdout++; |
| 546 | break; |
| 547 | |
| 548 | case 'p': |
| 549 | f_use_protection++; |
| 550 | break; |
| 551 | |
| 552 | case 'P': |
| 553 | f_absolute_paths++; |
| 554 | break; |
| 555 | |
| 556 | case 'r': /* Append files to the archive */ |
| 557 | if (cmd_mode != CMD_NONE) |
| 558 | goto badopt; |
| 559 | cmd_mode = CMD_APPEND; |
| 560 | break; |
| 561 | |
| 562 | case 'R': |
| 563 | f_sayblock++; /* Print block #s for debug */ |
| 564 | break; /* of bad tar archives */ |
| 565 | |
| 566 | case 's': |
| 567 | f_sorted_names++; /* Names to extr are sorted */ |
| 568 | break; |
| 569 | |
| 570 | case 'S': /* deal with sparse files */ |
| 571 | f_sparse_files++; |
| 572 | break; |
| 573 | case 't': |
| 574 | if (cmd_mode != CMD_NONE) |
| 575 | goto badopt; |
| 576 | cmd_mode = CMD_LIST; |
| 577 | f_verbose++; /* "t" output == "cv" or "xv" */ |
| 578 | break; |
| 579 | |
| 580 | case 'T': |
| 581 | name_file = optarg; |
| 582 | f_namefile++; |
| 583 | break; |
| 584 | |
| 585 | case 'u': /* Append files to the archive that |
| 586 | aren't there, or are newer than the |
| 587 | copy in the archive */ |
| 588 | if (cmd_mode != CMD_NONE) |
| 589 | goto badopt; |
| 590 | cmd_mode = CMD_UPDATE; |
| 591 | break; |
| 592 | |
| 593 | case 'v': |
| 594 | f_verbose++; |
| 595 | break; |
| 596 | |
| 597 | case 'V': |
| 598 | f_volhdr = optarg; |
| 599 | break; |
| 600 | |
| 601 | case 'w': |
| 602 | f_confirm++; |
| 603 | break; |
| 604 | |
| 605 | case 'W': |
| 606 | f_verify++; |
| 607 | break; |
| 608 | |
| 609 | case 'x': /* Extract files from the archive */ |
| 610 | if (cmd_mode != CMD_NONE) |
| 611 | goto badopt; |
| 612 | cmd_mode = CMD_EXTRACT; |
| 613 | break; |
| 614 | |
| 615 | case 'X': |
| 616 | f_exclude++; |
| 617 | add_exclude_file (optarg); |
| 618 | break; |
| 619 | |
| 620 | case 'z': |
| 621 | if (f_compressprog) |
| 622 | { |
| 623 | msg ("Only one compression option permitted\n"); |
| 624 | exit (EX_ARGSBAD); |
| 625 | } |
| 626 | f_compressprog = "gzip"; |
| 627 | break; |
| 628 | |
| 629 | case 'Z': |
| 630 | if (f_compressprog) |
| 631 | { |
| 632 | msg ("Only one compression option permitted\n"); |
| 633 | exit (EX_ARGSBAD); |
| 634 | } |
| 635 | f_compressprog = "compress"; |
| 636 | break; |
| 637 | |
| 638 | case '?': |
| 639 | badopt: |
| 640 | msg ("Unknown option. Use '%s --help' for a complete list of options.", tar); |
| 641 | exit (EX_ARGSBAD); |
| 642 | |
| 643 | } |
| 644 | } |
| 645 | |
| 646 | blocksize = blocking * RECORDSIZE; |
| 647 | if (n_ar_files == 0) |
| 648 | { |
| 649 | n_ar_files = 1; |
| 650 | ar_files[0] = getenv ("TAPE"); /* From environment, or */ |
| 651 | if (ar_files[0] == 0) |
| 652 | ar_files[0] = DEF_AR_FILE; /* From Makefile */ |
| 653 | } |
| 654 | if (n_ar_files > 1 && !f_multivol) |
| 655 | { |
| 656 | msg ("Multiple archive files requires --multi-volume\n"); |
| 657 | exit (EX_ARGSBAD); |
| 658 | } |
| 659 | if (f_compress_block && !f_compressprog) |
| 660 | { |
| 661 | msg ("You must use a compression option (--gzip, --compress\n\ |
| 662 | or --use-compress-program) with --block-compress.\n"); |
| 663 | exit (EX_ARGSBAD); |
| 664 | } |
| 665 | } |
| 666 | |
| 667 | |
| 668 | /* |
| 669 | * Print as much help as the user's gonna get. |
| 670 | * |
| 671 | * We have to sprinkle in the KLUDGE lines because too many compilers |
| 672 | * cannot handle character strings longer than about 512 bytes. Yuk! |
| 673 | * In particular, MS-DOS and Xenix MSC and PDP-11 V7 Unix have this |
| 674 | * problem. |
| 675 | */ |
| 676 | void |
| 677 | describe () |
| 678 | { |
| 679 | puts ("choose one of the following:"); |
| 680 | fputs ("\ |
| 681 | -A, --catenate,\n\ |
| 682 | --concatenate append tar files to an archive\n\ |
| 683 | -c, --create create a new archive\n\ |
| 684 | -d, --diff,\n\ |
| 685 | --compare find differences between archive and file system\n\ |
| 686 | --delete delete from the archive (not for use on mag tapes!)\n\ |
| 687 | -r, --append append files to the end of an archive\n\ |
| 688 | -t, --list list the contents of an archive\n\ |
| 689 | -u, --update only append files that are newer than copy in archive\n\ |
| 690 | -x, --extract,\n\ |
| 691 | --get extract files from an archive\n", stdout); |
| 692 | |
| 693 | fprintf (stdout, "\ |
| 694 | Other options:\n\ |
| 695 | --atime-preserve don't change access times on dumped files\n\ |
| 696 | -b, --block-size N block size of Nx512 bytes (default N=%d)\n", DEFBLOCKING); |
| 697 | fputs ("\ |
| 698 | -B, --read-full-blocks reblock as we read (for reading 4.2BSD pipes)\n\ |
| 699 | -C, --directory DIR change to directory DIR\n\ |
| 700 | --checkpoint print directory names while reading the archive\n\ |
| 701 | ", stdout); /* KLUDGE */ |
| 702 | fprintf (stdout, "\ |
| 703 | -f, --file [HOSTNAME:]F use archive file or device F (default %s)\n", |
| 704 | DEF_AR_FILE); |
| 705 | fputs ("\ |
| 706 | --force-local archive file is local even if has a colon\n\ |
| 707 | -F, --info-script F\n\ |
| 708 | --new-volume-script F run script at end of each tape (implies -M)\n\ |
| 709 | -G, --incremental create/list/extract old GNU-format incremental backup\n\ |
| 710 | -g, --listed-incremental F create/list/extract new GNU-format incremental backup\n\ |
| 711 | -h, --dereference don't dump symlinks; dump the files they point to\n\ |
| 712 | -i, --ignore-zeros ignore blocks of zeros in archive (normally mean EOF)\n\ |
| 713 | --ignore-failed-read don't exit with non-zero status on unreadable files\n\ |
| 714 | -k, --keep-old-files keep existing files; don't overwrite them from archive\n\ |
| 715 | -K, --starting-file F begin at file F in the archive\n\ |
| 716 | -l, --one-file-system stay in local file system when creating an archive\n\ |
| 717 | -L, --tape-length N change tapes after writing N*1024 bytes\n\ |
| 718 | ", stdout); /* KLUDGE */ |
| 719 | fputs ("\ |
| 720 | -m, --modification-time don't extract file modified time\n\ |
| 721 | -M, --multi-volume create/list/extract multi-volume archive\n\ |
| 722 | -N, --after-date DATE,\n\ |
| 723 | --newer DATE only store files newer than DATE\n\ |
| 724 | -o, --old-archive,\n\ |
| 725 | --portability write a V7 format archive, rather than ANSI format\n\ |
| 726 | -O, --to-stdout extract files to standard output\n\ |
| 727 | -p, --same-permissions,\n\ |
| 728 | --preserve-permissions extract all protection information\n\ |
| 729 | -P, --absolute-paths don't strip leading `/'s from file names\n\ |
| 730 | --preserve like -p -s\n\ |
| 731 | ", stdout); /* KLUDGE */ |
| 732 | fputs ("\ |
| 733 | -R, --record-number show record number within archive with each message\n\ |
| 734 | --remove-files remove files after adding them to the archive\n\ |
| 735 | -s, --same-order,\n\ |
| 736 | --preserve-order list of names to extract is sorted to match archive\n\ |
| 737 | --same-owner create extracted files with the same ownership \n\ |
| 738 | -S, --sparse handle sparse files efficiently\n\ |
| 739 | -T, --files-from F get names to extract or create from file F\n\ |
| 740 | --null -T reads null-terminated names, disable -C\n\ |
| 741 | --totals print total bytes written with --create\n\ |
| 742 | -v, --verbose verbosely list files processed\n\ |
| 743 | -V, --label NAME create archive with volume name NAME\n\ |
| 744 | --version print tar program version number\n\ |
| 745 | -w, --interactive,\n\ |
| 746 | --confirmation ask for confirmation for every action\n\ |
| 747 | ", stdout); /* KLUDGE */ |
| 748 | fputs ("\ |
| 749 | -W, --verify attempt to verify the archive after writing it\n\ |
| 750 | --exclude FILE exclude file FILE\n\ |
| 751 | -X, --exclude-from FILE exclude files listed in FILE\n\ |
| 752 | -Z, --compress,\n\ |
| 753 | --uncompress filter the archive through compress\n\ |
| 754 | -z, --gzip,\n\ |
| 755 | --ungzip filter the archive through gzip\n\ |
| 756 | --use-compress-program PROG\n\ |
| 757 | filter the archive through PROG (which must accept -d)\n\ |
| 758 | --block-compress block the output of compression program for tapes\n\ |
| 759 | -[0-7][lmh] specify drive and density\n\ |
| 760 | ", stdout); |
| 761 | } |
| 762 | |
| 763 | void |
| 764 | name_add (name) |
| 765 | char *name; |
| 766 | { |
| 767 | if (n_indalloc == n_indused) |
| 768 | { |
| 769 | n_indalloc += 10; |
| 770 | n_ind = (char **) (n_indused ? ck_realloc (n_ind, n_indalloc * sizeof (char *)): ck_malloc (n_indalloc * sizeof (char *))); |
| 771 | } |
| 772 | n_ind[n_indused++] = name; |
| 773 | } |
| 774 | |
| 775 | /* |
| 776 | * Set up to gather file names for tar. |
| 777 | * |
| 778 | * They can either come from stdin or from argv. |
| 779 | */ |
| 780 | void |
| 781 | name_init (argc, argv) |
| 782 | int argc; |
| 783 | char **argv; |
| 784 | { |
| 785 | |
| 786 | if (f_namefile) |
| 787 | { |
| 788 | if (optind < argc) |
| 789 | { |
| 790 | msg ("too many args with -T option"); |
| 791 | exit (EX_ARGSBAD); |
| 792 | } |
| 793 | if (!strcmp (name_file, "-")) |
| 794 | { |
| 795 | namef = stdin; |
| 796 | } |
| 797 | else |
| 798 | { |
| 799 | namef = fopen (name_file, "r"); |
| 800 | if (namef == NULL) |
| 801 | { |
| 802 | msg_perror ("can't open file %s", name_file); |
| 803 | exit (EX_BADFILE); |
| 804 | } |
| 805 | } |
| 806 | } |
| 807 | else |
| 808 | { |
| 809 | /* Get file names from argv, after options. */ |
| 810 | n_argc = argc; |
| 811 | n_argv = argv; |
| 812 | } |
| 813 | } |
| 814 | |
| 815 | /* Read the next filename read from STREAM and null-terminate it. |
| 816 | Put it into BUFFER, reallocating and adjusting *PBUFFER_SIZE if necessary. |
| 817 | Return the new value for BUFFER, or NULL at end of file. */ |
| 818 | |
| 819 | char * |
| 820 | read_name_from_file (buffer, pbuffer_size, stream) |
| 821 | char *buffer; |
| 822 | size_t *pbuffer_size; |
| 823 | FILE *stream; |
| 824 | { |
| 825 | register int c; |
| 826 | register int indx = 0; |
| 827 | register size_t buffer_size = *pbuffer_size; |
| 828 | |
| 829 | while ((c = getc (stream)) != EOF && c != filename_terminator) |
| 830 | { |
| 831 | if (indx == buffer_size) |
| 832 | { |
| 833 | buffer_size += NAMSIZ; |
| 834 | buffer = ck_realloc (buffer, buffer_size + 2); |
| 835 | } |
| 836 | buffer[indx++] = c; |
| 837 | } |
| 838 | if (indx == 0 && c == EOF) |
| 839 | return NULL; |
| 840 | if (indx == buffer_size) |
| 841 | { |
| 842 | buffer_size += NAMSIZ; |
| 843 | buffer = ck_realloc (buffer, buffer_size + 2); |
| 844 | } |
| 845 | buffer[indx] = '\0'; |
| 846 | *pbuffer_size = buffer_size; |
| 847 | return buffer; |
| 848 | } |
| 849 | |
| 850 | /* |
| 851 | * Get the next name from argv or the name file. |
| 852 | * |
| 853 | * Result is in static storage and can't be relied upon across two calls. |
| 854 | * |
| 855 | * If CHANGE_DIRS is non-zero, treat a filename of the form "-C" as |
| 856 | * meaning that the next filename is the name of a directory to change to. |
| 857 | * If `filename_terminator' is '\0', CHANGE_DIRS is effectively always 0. |
| 858 | */ |
| 859 | |
| 860 | char * |
| 861 | name_next (change_dirs) |
| 862 | int change_dirs; |
| 863 | { |
| 864 | static char *buffer; /* Holding pattern */ |
| 865 | static int buffer_siz; |
| 866 | register char *p; |
| 867 | register char *q = 0; |
| 868 | register int next_name_is_dir = 0; |
| 869 | extern char *un_quote_string (); |
| 870 | |
| 871 | if (buffer_siz == 0) |
| 872 | { |
| 873 | buffer = ck_malloc (NAMSIZ + 2); |
| 874 | buffer_siz = NAMSIZ; |
| 875 | } |
| 876 | if (filename_terminator == '\0') |
| 877 | change_dirs = 0; |
| 878 | tryagain: |
| 879 | if (namef == NULL) |
| 880 | { |
| 881 | if (n_indscan < n_indused) |
| 882 | p = n_ind[n_indscan++]; |
| 883 | else if (optind < n_argc) |
| 884 | /* Names come from argv, after options */ |
| 885 | p = n_argv[optind++]; |
| 886 | else |
| 887 | { |
| 888 | if (q) |
| 889 | msg ("Missing filename after -C"); |
| 890 | return NULL; |
| 891 | } |
| 892 | |
| 893 | /* JF trivial support for -C option. I don't know if |
| 894 | chdir'ing at this point is dangerous or not. |
| 895 | It seems to work, which is all I ask. */ |
| 896 | if (change_dirs && !q && p[0] == '-' && p[1] == 'C' && p[2] == '\0') |
| 897 | { |
| 898 | q = p; |
| 899 | goto tryagain; |
| 900 | } |
| 901 | if (q) |
| 902 | { |
| 903 | if (chdir (p) < 0) |
| 904 | msg_perror ("Can't chdir to %s", p); |
| 905 | q = 0; |
| 906 | goto tryagain; |
| 907 | } |
| 908 | /* End of JF quick -C hack */ |
| 909 | |
| 910 | #if 0 |
| 911 | if (f_exclude && check_exclude (p)) |
| 912 | goto tryagain; |
| 913 | #endif |
| 914 | return un_quote_string (p); |
| 915 | } |
| 916 | while (p = read_name_from_file (buffer, &buffer_siz, namef)) |
| 917 | { |
| 918 | buffer = p; |
| 919 | if (*p == '\0') |
| 920 | continue; /* Ignore empty lines. */ |
| 921 | q = p + strlen (p) - 1; |
| 922 | while (q > p && *q == '/')/* Zap trailing "/"s. */ |
| 923 | *q-- = '\0'; |
| 924 | if (change_dirs && next_name_is_dir == 0 |
| 925 | && p[0] == '-' && p[1] == 'C' && p[2] == '\0') |
| 926 | { |
| 927 | next_name_is_dir = 1; |
| 928 | goto tryagain; |
| 929 | } |
| 930 | if (next_name_is_dir) |
| 931 | { |
| 932 | if (chdir (p) < 0) |
| 933 | msg_perror ("Can't change to directory %s", p); |
| 934 | next_name_is_dir = 0; |
| 935 | goto tryagain; |
| 936 | } |
| 937 | #if 0 |
| 938 | if (f_exclude && check_exclude (p)) |
| 939 | goto tryagain; |
| 940 | #endif |
| 941 | return un_quote_string (p); |
| 942 | } |
| 943 | return NULL; |
| 944 | } |
| 945 | |
| 946 | |
| 947 | /* |
| 948 | * Close the name file, if any. |
| 949 | */ |
| 950 | void |
| 951 | name_close () |
| 952 | { |
| 953 | |
| 954 | if (namef != NULL && namef != stdin) |
| 955 | fclose (namef); |
| 956 | } |
| 957 | |
| 958 | |
| 959 | /* |
| 960 | * Gather names in a list for scanning. |
| 961 | * Could hash them later if we really care. |
| 962 | * |
| 963 | * If the names are already sorted to match the archive, we just |
| 964 | * read them one by one. name_gather reads the first one, and it |
| 965 | * is called by name_match as appropriate to read the next ones. |
| 966 | * At EOF, the last name read is just left in the buffer. |
| 967 | * This option lets users of small machines extract an arbitrary |
| 968 | * number of files by doing "tar t" and editing down the list of files. |
| 969 | */ |
| 970 | void |
| 971 | name_gather () |
| 972 | { |
| 973 | register char *p; |
| 974 | static struct name *namebuf; /* One-name buffer */ |
| 975 | static namelen; |
| 976 | static char *chdir_name; |
| 977 | |
| 978 | if (f_sorted_names) |
| 979 | { |
| 980 | if (!namelen) |
| 981 | { |
| 982 | namelen = NAMSIZ; |
| 983 | namebuf = (struct name *) ck_malloc (sizeof (struct name) + NAMSIZ); |
| 984 | } |
| 985 | p = name_next (0); |
| 986 | if (p) |
| 987 | { |
| 988 | if (*p == '-' && p[1] == 'C' && p[2] == '\0') |
| 989 | { |
| 990 | chdir_name = name_next (0); |
| 991 | p = name_next (0); |
| 992 | if (!p) |
| 993 | { |
| 994 | msg ("Missing file name after -C"); |
| 995 | exit (EX_ARGSBAD); |
| 996 | } |
| 997 | namebuf->change_dir = chdir_name; |
| 998 | } |
| 999 | namebuf->length = strlen (p); |
| 1000 | if (namebuf->length >= namelen) |
| 1001 | { |
| 1002 | namebuf = (struct name *) ck_realloc (namebuf, sizeof (struct name) + namebuf->length); |
| 1003 | namelen = namebuf->length; |
| 1004 | } |
| 1005 | strncpy (namebuf->name, p, namebuf->length); |
| 1006 | namebuf->name[namebuf->length] = 0; |
| 1007 | namebuf->next = (struct name *) NULL; |
| 1008 | namebuf->found = 0; |
| 1009 | namelist = namebuf; |
| 1010 | namelast = namelist; |
| 1011 | } |
| 1012 | return; |
| 1013 | } |
| 1014 | |
| 1015 | /* Non sorted names -- read them all in */ |
| 1016 | while (p = name_next (0)) |
| 1017 | addname (p); |
| 1018 | } |
| 1019 | |
| 1020 | /* |
| 1021 | * Add a name to the namelist. |
| 1022 | */ |
| 1023 | void |
| 1024 | addname (name) |
| 1025 | char *name; /* pointer to name */ |
| 1026 | { |
| 1027 | register int i; /* Length of string */ |
| 1028 | register struct name *p; /* Current struct pointer */ |
| 1029 | static char *chdir_name; |
| 1030 | char *new_name (); |
| 1031 | |
| 1032 | if (name[0] == '-' && name[1] == 'C' && name[2] == '\0') |
| 1033 | { |
| 1034 | chdir_name = name_next (0); |
| 1035 | name = name_next (0); |
| 1036 | if (!chdir_name) |
| 1037 | { |
| 1038 | msg ("Missing file name after -C"); |
| 1039 | exit (EX_ARGSBAD); |
| 1040 | } |
| 1041 | if (chdir_name[0] != '/') |
| 1042 | { |
| 1043 | char *path = ck_malloc (PATH_MAX); |
| 1044 | #if defined(__MSDOS__) || defined(HAVE_GETCWD) || defined(_POSIX_VERSION) |
| 1045 | if (!getcwd (path, PATH_MAX)) |
| 1046 | { |
| 1047 | msg ("Couldn't get current directory."); |
| 1048 | exit (EX_SYSTEM); |
| 1049 | } |
| 1050 | #else |
| 1051 | char *getwd (); |
| 1052 | |
| 1053 | if (!getwd (path)) |
| 1054 | { |
| 1055 | msg ("Couldn't get current directory: %s", path); |
| 1056 | exit (EX_SYSTEM); |
| 1057 | } |
| 1058 | #endif |
| 1059 | chdir_name = new_name (path, chdir_name); |
| 1060 | free (path); |
| 1061 | } |
| 1062 | } |
| 1063 | |
| 1064 | if (name) |
| 1065 | { |
| 1066 | i = strlen (name); |
| 1067 | /*NOSTRICT*/ |
| 1068 | p = (struct name *) malloc ((unsigned) (sizeof (struct name) + i)); |
| 1069 | } |
| 1070 | else |
| 1071 | p = (struct name *) malloc ((unsigned) (sizeof (struct name))); |
| 1072 | if (!p) |
| 1073 | { |
| 1074 | if (name) |
| 1075 | msg ("cannot allocate mem for name '%s'.", name); |
| 1076 | else |
| 1077 | msg ("cannot allocate mem for chdir record."); |
| 1078 | exit (EX_SYSTEM); |
| 1079 | } |
| 1080 | p->next = (struct name *) NULL; |
| 1081 | if (name) |
| 1082 | { |
| 1083 | p->fake = 0; |
| 1084 | p->length = i; |
| 1085 | strncpy (p->name, name, i); |
| 1086 | p->name[i] = '\0'; /* Null term */ |
| 1087 | } |
| 1088 | else |
| 1089 | p->fake = 1; |
| 1090 | p->found = 0; |
| 1091 | p->regexp = 0; /* Assume not a regular expression */ |
| 1092 | p->firstch = 1; /* Assume first char is literal */ |
| 1093 | p->change_dir = chdir_name; |
| 1094 | p->dir_contents = 0; /* JF */ |
| 1095 | if (name) |
| 1096 | { |
| 1097 | if (index (name, '*') || index (name, '[') || index (name, '?')) |
| 1098 | { |
| 1099 | p->regexp = 1; /* No, it's a regexp */ |
| 1100 | if (name[0] == '*' || name[0] == '[' || name[0] == '?') |
| 1101 | p->firstch = 0; /* Not even 1st char literal */ |
| 1102 | } |
| 1103 | } |
| 1104 | |
| 1105 | if (namelast) |
| 1106 | namelast->next = p; |
| 1107 | namelast = p; |
| 1108 | if (!namelist) |
| 1109 | namelist = p; |
| 1110 | } |
| 1111 | |
| 1112 | /* |
| 1113 | * Return nonzero if name P (from an archive) matches any name from |
| 1114 | * the namelist, zero if not. |
| 1115 | */ |
| 1116 | int |
| 1117 | name_match (p) |
| 1118 | register char *p; |
| 1119 | { |
| 1120 | register struct name *nlp; |
| 1121 | register int len; |
| 1122 | |
| 1123 | again: |
| 1124 | if (0 == (nlp = namelist)) /* Empty namelist is easy */ |
| 1125 | return 1; |
| 1126 | if (nlp->fake) |
| 1127 | { |
| 1128 | if (nlp->change_dir && chdir (nlp->change_dir)) |
| 1129 | msg_perror ("Can't change to directory %d", nlp->change_dir); |
| 1130 | namelist = 0; |
| 1131 | return 1; |
| 1132 | } |
| 1133 | len = strlen (p); |
| 1134 | for (; nlp != 0; nlp = nlp->next) |
| 1135 | { |
| 1136 | /* If first chars don't match, quick skip */ |
| 1137 | if (nlp->firstch && nlp->name[0] != p[0]) |
| 1138 | continue; |
| 1139 | |
| 1140 | /* Regular expressions (shell globbing, actually). */ |
| 1141 | if (nlp->regexp) |
| 1142 | { |
| 1143 | if (fnmatch (nlp->name, p, FNM_LEADING_DIR) == 0) |
| 1144 | { |
| 1145 | nlp->found = 1; /* Remember it matched */ |
| 1146 | if (f_startfile) |
| 1147 | { |
| 1148 | free ((void *) namelist); |
| 1149 | namelist = 0; |
| 1150 | } |
| 1151 | if (nlp->change_dir && chdir (nlp->change_dir)) |
| 1152 | msg_perror ("Can't change to directory %s", nlp->change_dir); |
| 1153 | return 1; /* We got a match */ |
| 1154 | } |
| 1155 | continue; |
| 1156 | } |
| 1157 | |
| 1158 | /* Plain Old Strings */ |
| 1159 | if (nlp->length <= len /* Archive len >= specified */ |
| 1160 | && (p[nlp->length] == '\0' || p[nlp->length] == '/') |
| 1161 | /* Full match on file/dirname */ |
| 1162 | && strncmp (p, nlp->name, nlp->length) == 0) /* Name compare */ |
| 1163 | { |
| 1164 | nlp->found = 1; /* Remember it matched */ |
| 1165 | if (f_startfile) |
| 1166 | { |
| 1167 | free ((void *) namelist); |
| 1168 | namelist = 0; |
| 1169 | } |
| 1170 | if (nlp->change_dir && chdir (nlp->change_dir)) |
| 1171 | msg_perror ("Can't change to directory %s", nlp->change_dir); |
| 1172 | return 1; /* We got a match */ |
| 1173 | } |
| 1174 | } |
| 1175 | |
| 1176 | /* |
| 1177 | * Filename from archive not found in namelist. |
| 1178 | * If we have the whole namelist here, just return 0. |
| 1179 | * Otherwise, read the next name in and compare it. |
| 1180 | * If this was the last name, namelist->found will remain on. |
| 1181 | * If not, we loop to compare the newly read name. |
| 1182 | */ |
| 1183 | if (f_sorted_names && namelist->found) |
| 1184 | { |
| 1185 | name_gather (); /* Read one more */ |
| 1186 | if (!namelist->found) |
| 1187 | goto again; |
| 1188 | } |
| 1189 | return 0; |
| 1190 | } |
| 1191 | |
| 1192 | |
| 1193 | /* |
| 1194 | * Print the names of things in the namelist that were not matched. |
| 1195 | */ |
| 1196 | void |
| 1197 | names_notfound () |
| 1198 | { |
| 1199 | register struct name *nlp, *next; |
| 1200 | register char *p; |
| 1201 | |
| 1202 | for (nlp = namelist; nlp != 0; nlp = next) |
| 1203 | { |
| 1204 | next = nlp->next; |
| 1205 | if (!nlp->found) |
| 1206 | msg ("%s not found in archive", nlp->name); |
| 1207 | |
| 1208 | /* |
| 1209 | * We could free() the list, but the process is about |
| 1210 | * to die anyway, so save some CPU time. Amigas and |
| 1211 | * other similarly broken software will need to waste |
| 1212 | * the time, though. |
| 1213 | */ |
| 1214 | #ifdef amiga |
| 1215 | if (!f_sorted_names) |
| 1216 | free (nlp); |
| 1217 | #endif |
| 1218 | } |
| 1219 | namelist = (struct name *) NULL; |
| 1220 | namelast = (struct name *) NULL; |
| 1221 | |
| 1222 | if (f_sorted_names) |
| 1223 | { |
| 1224 | while (0 != (p = name_next (1))) |
| 1225 | msg ("%s not found in archive", p); |
| 1226 | } |
| 1227 | } |
| 1228 | |
| 1229 | /* These next routines were created by JF */ |
| 1230 | |
| 1231 | void |
| 1232 | name_expand () |
| 1233 | { |
| 1234 | ; |
| 1235 | } |
| 1236 | |
| 1237 | /* This is like name_match(), except that it returns a pointer to the name |
| 1238 | it matched, and doesn't set ->found The caller will have to do that |
| 1239 | if it wants to. Oh, and if the namelist is empty, it returns 0, unlike |
| 1240 | name_match(), which returns TRUE */ |
| 1241 | |
| 1242 | struct name * |
| 1243 | name_scan (p) |
| 1244 | register char *p; |
| 1245 | { |
| 1246 | register struct name *nlp; |
| 1247 | register int len; |
| 1248 | |
| 1249 | again: |
| 1250 | if (0 == (nlp = namelist)) /* Empty namelist is easy */ |
| 1251 | return 0; |
| 1252 | len = strlen (p); |
| 1253 | for (; nlp != 0; nlp = nlp->next) |
| 1254 | { |
| 1255 | /* If first chars don't match, quick skip */ |
| 1256 | if (nlp->firstch && nlp->name[0] != p[0]) |
| 1257 | continue; |
| 1258 | |
| 1259 | /* Regular expressions */ |
| 1260 | if (nlp->regexp) |
| 1261 | { |
| 1262 | if (fnmatch (nlp->name, p, FNM_LEADING_DIR) == 0) |
| 1263 | return nlp; /* We got a match */ |
| 1264 | continue; |
| 1265 | } |
| 1266 | |
| 1267 | /* Plain Old Strings */ |
| 1268 | if (nlp->length <= len /* Archive len >= specified */ |
| 1269 | && (p[nlp->length] == '\0' || p[nlp->length] == '/') |
| 1270 | /* Full match on file/dirname */ |
| 1271 | && strncmp (p, nlp->name, nlp->length) == 0) /* Name compare */ |
| 1272 | return nlp; /* We got a match */ |
| 1273 | } |
| 1274 | |
| 1275 | /* |
| 1276 | * Filename from archive not found in namelist. |
| 1277 | * If we have the whole namelist here, just return 0. |
| 1278 | * Otherwise, read the next name in and compare it. |
| 1279 | * If this was the last name, namelist->found will remain on. |
| 1280 | * If not, we loop to compare the newly read name. |
| 1281 | */ |
| 1282 | if (f_sorted_names && namelist->found) |
| 1283 | { |
| 1284 | name_gather (); /* Read one more */ |
| 1285 | if (!namelist->found) |
| 1286 | goto again; |
| 1287 | } |
| 1288 | return (struct name *) 0; |
| 1289 | } |
| 1290 | |
| 1291 | /* This returns a name from the namelist which doesn't have ->found set. |
| 1292 | It sets ->found before returning, so successive calls will find and return |
| 1293 | all the non-found names in the namelist */ |
| 1294 | |
| 1295 | struct name *gnu_list_name; |
| 1296 | |
| 1297 | char * |
| 1298 | name_from_list () |
| 1299 | { |
| 1300 | if (!gnu_list_name) |
| 1301 | gnu_list_name = namelist; |
| 1302 | while (gnu_list_name && gnu_list_name->found) |
| 1303 | gnu_list_name = gnu_list_name->next; |
| 1304 | if (gnu_list_name) |
| 1305 | { |
| 1306 | gnu_list_name->found++; |
| 1307 | if (gnu_list_name->change_dir) |
| 1308 | if (chdir (gnu_list_name->change_dir) < 0) |
| 1309 | msg_perror ("can't chdir to %s", gnu_list_name->change_dir); |
| 1310 | return gnu_list_name->name; |
| 1311 | } |
| 1312 | return (char *) 0; |
| 1313 | } |
| 1314 | |
| 1315 | void |
| 1316 | blank_name_list () |
| 1317 | { |
| 1318 | struct name *n; |
| 1319 | |
| 1320 | gnu_list_name = 0; |
| 1321 | for (n = namelist; n; n = n->next) |
| 1322 | n->found = 0; |
| 1323 | } |
| 1324 | |
| 1325 | char * |
| 1326 | new_name (path, name) |
| 1327 | char *path, *name; |
| 1328 | { |
| 1329 | char *path_buf; |
| 1330 | |
| 1331 | path_buf = (char *) malloc (strlen (path) + strlen (name) + 2); |
| 1332 | if (path_buf == 0) |
| 1333 | { |
| 1334 | msg ("Can't allocate memory for name '%s/%s", path, name); |
| 1335 | exit (EX_SYSTEM); |
| 1336 | } |
| 1337 | (void) sprintf (path_buf, "%s/%s", path, name); |
| 1338 | return path_buf; |
| 1339 | } |
| 1340 | |
| 1341 | /* returns non-zero if the luser typed 'y' or 'Y', zero otherwise. */ |
| 1342 | |
| 1343 | int |
| 1344 | confirm (action, file) |
| 1345 | char *action, *file; |
| 1346 | { |
| 1347 | int c, nl; |
| 1348 | static FILE *confirm_file = 0; |
| 1349 | extern FILE *msg_file; |
| 1350 | extern char TTY_NAME[]; |
| 1351 | |
| 1352 | fprintf (msg_file, "%s %s?", action, file); |
| 1353 | fflush (msg_file); |
| 1354 | if (!confirm_file) |
| 1355 | { |
| 1356 | confirm_file = (archive == 0) ? fopen (TTY_NAME, "r") : stdin; |
| 1357 | if (!confirm_file) |
| 1358 | { |
| 1359 | msg ("Can't read confirmation from user"); |
| 1360 | exit (EX_SYSTEM); |
| 1361 | } |
| 1362 | } |
| 1363 | c = getc (confirm_file); |
| 1364 | for (nl = c; nl != '\n' && nl != EOF; nl = getc (confirm_file)) |
| 1365 | ; |
| 1366 | return (c == 'y' || c == 'Y'); |
| 1367 | } |
| 1368 | |
| 1369 | char *x_buffer = 0; |
| 1370 | int size_x_buffer; |
| 1371 | int free_x_buffer; |
| 1372 | |
| 1373 | char **exclude = 0; |
| 1374 | int size_exclude = 0; |
| 1375 | int free_exclude = 0; |
| 1376 | |
| 1377 | char **re_exclude = 0; |
| 1378 | int size_re_exclude = 0; |
| 1379 | int free_re_exclude = 0; |
| 1380 | |
| 1381 | void |
| 1382 | add_exclude (name) |
| 1383 | char *name; |
| 1384 | { |
| 1385 | /* char *rname;*/ |
| 1386 | /* char **tmp_ptr;*/ |
| 1387 | int size_buf; |
| 1388 | |
| 1389 | un_quote_string (name); |
| 1390 | size_buf = strlen (name); |
| 1391 | |
| 1392 | if (x_buffer == 0) |
| 1393 | { |
| 1394 | x_buffer = (char *) ck_malloc (size_buf + 1024); |
| 1395 | free_x_buffer = 1024; |
| 1396 | } |
| 1397 | else if (free_x_buffer <= size_buf) |
| 1398 | { |
| 1399 | char *old_x_buffer; |
| 1400 | char **tmp_ptr; |
| 1401 | |
| 1402 | old_x_buffer = x_buffer; |
| 1403 | x_buffer = (char *) ck_realloc (x_buffer, size_x_buffer + 1024); |
| 1404 | free_x_buffer = 1024; |
| 1405 | for (tmp_ptr = exclude; tmp_ptr < exclude + size_exclude; tmp_ptr++) |
| 1406 | *tmp_ptr = x_buffer + ((*tmp_ptr) - old_x_buffer); |
| 1407 | for (tmp_ptr = re_exclude; tmp_ptr < re_exclude + size_re_exclude; tmp_ptr++) |
| 1408 | *tmp_ptr = x_buffer + ((*tmp_ptr) - old_x_buffer); |
| 1409 | } |
| 1410 | |
| 1411 | if (is_regex (name)) |
| 1412 | { |
| 1413 | if (free_re_exclude == 0) |
| 1414 | { |
| 1415 | re_exclude = (char **) (re_exclude ? ck_realloc (re_exclude, (size_re_exclude + 32) * sizeof (char *)): ck_malloc (sizeof (char *) * 32)); |
| 1416 | free_re_exclude += 32; |
| 1417 | } |
| 1418 | re_exclude[size_re_exclude] = x_buffer + size_x_buffer; |
| 1419 | size_re_exclude++; |
| 1420 | free_re_exclude--; |
| 1421 | } |
| 1422 | else |
| 1423 | { |
| 1424 | if (free_exclude == 0) |
| 1425 | { |
| 1426 | exclude = (char **) (exclude ? ck_realloc (exclude, (size_exclude + 32) * sizeof (char *)): ck_malloc (sizeof (char *) * 32)); |
| 1427 | free_exclude += 32; |
| 1428 | } |
| 1429 | exclude[size_exclude] = x_buffer + size_x_buffer; |
| 1430 | size_exclude++; |
| 1431 | free_exclude--; |
| 1432 | } |
| 1433 | strcpy (x_buffer + size_x_buffer, name); |
| 1434 | size_x_buffer += size_buf + 1; |
| 1435 | free_x_buffer -= size_buf + 1; |
| 1436 | } |
| 1437 | |
| 1438 | void |
| 1439 | add_exclude_file (file) |
| 1440 | char *file; |
| 1441 | { |
| 1442 | FILE *fp; |
| 1443 | char buf[1024]; |
| 1444 | |
| 1445 | if (strcmp (file, "-")) |
| 1446 | fp = fopen (file, "r"); |
| 1447 | else |
| 1448 | /* Let's hope the person knows what they're doing. */ |
| 1449 | /* Using -X - -T - -f - will get you *REALLY* strange |
| 1450 | results. . . */ |
| 1451 | fp = stdin; |
| 1452 | |
| 1453 | if (!fp) |
| 1454 | { |
| 1455 | msg_perror ("can't open %s", file); |
| 1456 | exit (2); |
| 1457 | } |
| 1458 | while (fgets (buf, 1024, fp)) |
| 1459 | { |
| 1460 | /* int size_buf;*/ |
| 1461 | char *end_str; |
| 1462 | |
| 1463 | end_str = rindex (buf, '\n'); |
| 1464 | if (end_str) |
| 1465 | *end_str = '\0'; |
| 1466 | add_exclude (buf); |
| 1467 | |
| 1468 | } |
| 1469 | fclose (fp); |
| 1470 | } |
| 1471 | |
| 1472 | int |
| 1473 | is_regex (str) |
| 1474 | char *str; |
| 1475 | { |
| 1476 | return index (str, '*') || index (str, '[') || index (str, '?'); |
| 1477 | } |
| 1478 | |
| 1479 | /* Returns non-zero if the file 'name' should not be added/extracted */ |
| 1480 | int |
| 1481 | check_exclude (name) |
| 1482 | char *name; |
| 1483 | { |
| 1484 | int n; |
| 1485 | char *str; |
| 1486 | extern char *strstr (); |
| 1487 | |
| 1488 | for (n = 0; n < size_re_exclude; n++) |
| 1489 | { |
| 1490 | if (fnmatch (re_exclude[n], name, FNM_LEADING_DIR) == 0) |
| 1491 | return 1; |
| 1492 | } |
| 1493 | for (n = 0; n < size_exclude; n++) |
| 1494 | { |
| 1495 | /* Accept the output from strstr only if it is the last |
| 1496 | part of the string. There is certainly a faster way to |
| 1497 | do this. . . */ |
| 1498 | if ((str = strstr (name, exclude[n])) |
| 1499 | && (str == name || str[-1] == '/') |
| 1500 | && str[strlen (exclude[n])] == '\0') |
| 1501 | return 1; |
| 1502 | } |
| 1503 | return 0; |
| 1504 | } |