options.c revision 1.121
1 /* $NetBSD: options.c,v 1.121 2024/08/05 13:37:27 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 1992 Keith Muller. 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Keith Muller of the University of California, San Diego. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #if HAVE_NBTOOL_CONFIG_H 37 #include "nbtool_config.h" 38 #endif 39 40 #include <sys/cdefs.h> 41 #if !defined(lint) 42 #if 0 43 static char sccsid[] = "@(#)options.c 8.2 (Berkeley) 4/18/94"; 44 #else 45 __RCSID("$NetBSD: options.c,v 1.121 2024/08/05 13:37:27 riastradh Exp $"); 46 #endif 47 #endif /* not lint */ 48 49 #include <sys/types.h> 50 #include <sys/time.h> 51 #include <sys/stat.h> 52 #include <sys/param.h> 53 #include <ctype.h> 54 #include <errno.h> 55 #if HAVE_NBTOOL_CONFIG_H 56 #include "compat_getopt.h" 57 #else 58 #include <getopt.h> 59 #endif 60 #include <limits.h> 61 #include <stdio.h> 62 #include <stdlib.h> 63 #include <string.h> 64 #include <strings.h> 65 #include <unistd.h> 66 #include <inttypes.h> 67 #include <paths.h> 68 #include <util.h> 69 #include "pax.h" 70 #include "options.h" 71 #include "cpio.h" 72 #include "tar.h" 73 #include "extern.h" 74 #ifndef SMALL 75 #include "mtree.h" 76 #endif /* SMALL */ 77 78 char *chdname; 79 #if !HAVE_NBTOOL_CONFIG_H 80 int do_chroot; 81 #endif 82 83 /* 84 * Routines which handle command line options 85 */ 86 struct stat tst; /* Timestamp to set if non-0 */ 87 88 static int nopids; /* tar mode: suppress "pids" for -p option */ 89 static char flgch[] = FLGCH; /* list of all possible flags (pax) */ 90 static OPLIST *ophead = NULL; /* head for format specific options -x */ 91 static OPLIST *optail = NULL; /* option tail */ 92 93 static int opt_add(const char *); 94 static int no_op(void); 95 static void printflg(unsigned int); 96 static int c_frmt(const void *, const void *); 97 static off_t str_offt(char *); 98 static char *get_line(FILE *fp); 99 #ifndef SMALL 100 static int set_tstamp(const char *, struct stat *); 101 #endif 102 static void pax_options(int, char **); 103 __dead static void pax_usage(void); 104 static void tar_options(int, char **); 105 __dead static void tar_usage(void); 106 #ifndef NO_CPIO 107 static void cpio_options(int, char **); 108 __dead static void cpio_usage(void); 109 #endif 110 111 /* errors from get_line */ 112 #define GETLINE_FILE_CORRUPT 1 113 #define GETLINE_OUT_OF_MEM 2 114 static int get_line_error; 115 116 #define BZIP2_CMD "bzip2" /* command to run as bzip2 */ 117 #define GZIP_CMD "gzip" /* command to run as gzip */ 118 #define XZ_CMD "xz" /* command to run as xz */ 119 #define COMPRESS_CMD "compress" /* command to run as compress */ 120 121 /* 122 * Long options. 123 */ 124 #define OPT_USE_COMPRESS_PROGRAM 0 125 #define OPT_CHECKPOINT 1 126 #define OPT_UNLINK 2 127 #define OPT_HELP 3 128 #define OPT_ATIME_PRESERVE 4 129 #define OPT_IGNORE_FAILED_READ 5 130 #define OPT_REMOVE_FILES 6 131 #define OPT_NULL 7 132 #define OPT_TOTALS 8 133 #define OPT_VERSION 9 134 #define OPT_EXCLUDE 10 135 #define OPT_BLOCK_COMPRESS 11 136 #define OPT_NORECURSE 12 137 #define OPT_FORCE_LOCAL 13 138 #define OPT_INSECURE 14 139 #define OPT_STRICT 15 140 #define OPT_SPARSE 16 141 #define OPT_XZ 17 142 #define OPT_GNU 18 143 #define OPT_TIMESTAMP 19 144 #if !HAVE_NBTOOL_CONFIG_H 145 #define OPT_CHROOT 20 146 #endif 147 148 /* 149 * Format specific routine table - MUST BE IN SORTED ORDER BY NAME 150 * (see pax.h for description of each function) 151 * 152 * name, blksz, hdsz, udev, hlk, blkagn, inhead, id, st_read, 153 * read, end_read, st_write, write, end_write, trail, 154 * subtrail, rd_data, wr_data, options 155 */ 156 157 FSUB fsub[] = { 158 #ifndef NO_CPIO 159 /* 0: OLD BINARY CPIO */ 160 { "bcpio", 5120, sizeof(HD_BCPIO), 1, 0, 0, 1, bcpio_id, cpio_strd, 161 bcpio_rd, bcpio_endrd, cpio_stwr, bcpio_wr, cpio_endwr, NULL, 162 cpio_subtrail, rd_wrfile, wr_rdfile, bad_opt }, 163 164 /* 1: OLD OCTAL CHARACTER CPIO */ 165 { "cpio", 5120, sizeof(HD_CPIO), 1, 0, 0, 1, cpio_id, cpio_strd, 166 cpio_rd, cpio_endrd, cpio_stwr, cpio_wr, cpio_endwr, NULL, 167 cpio_subtrail, rd_wrfile, wr_rdfile, bad_opt }, 168 169 /* 2: SVR4 HEX CPIO */ 170 { "sv4cpio", 5120, sizeof(HD_VCPIO), 1, 0, 0, 1, vcpio_id, cpio_strd, 171 vcpio_rd, vcpio_endrd, cpio_stwr, vcpio_wr, cpio_endwr, NULL, 172 cpio_subtrail, rd_wrfile, wr_rdfile, bad_opt }, 173 174 /* 3: SVR4 HEX CPIO WITH CRC */ 175 { "sv4crc", 5120, sizeof(HD_VCPIO), 1, 0, 0, 1, crc_id, crc_strd, 176 vcpio_rd, vcpio_endrd, crc_stwr, vcpio_wr, cpio_endwr, NULL, 177 cpio_subtrail, rd_wrfile, wr_rdfile, bad_opt }, 178 #endif 179 /* 4: OLD TAR */ 180 { "tar", 10240, BLKMULT, 0, 1, BLKMULT, 0, tar_id, no_op, 181 tar_rd, tar_endrd, no_op, tar_wr, tar_endwr, tar_trail, 182 NULL, rd_wrfile, wr_rdfile, tar_opt }, 183 184 /* 5: POSIX USTAR */ 185 { "ustar", 10240, BLKMULT, 0, 1, BLKMULT, 0, ustar_id, ustar_strd, 186 ustar_rd, tar_endrd, ustar_stwr, ustar_wr, tar_endwr, tar_trail, 187 NULL, rd_wrfile, wr_rdfile, bad_opt } 188 }; 189 #ifndef NO_CPIO 190 #define F_BCPIO 0 /* old binary cpio format */ 191 #define F_CPIO 1 /* old octal character cpio format */ 192 #define F_SV4CPIO 2 /* SVR4 hex cpio format */ 193 #define F_SV4CRC 3 /* SVR4 hex with crc cpio format */ 194 #define F_TAR 4 /* old V7 UNIX tar format */ 195 #define F_USTAR 5 /* ustar format */ 196 #else 197 #define F_TAR 0 /* old V7 UNIX tar format */ 198 #define F_USTAR 1 /* ustar format */ 199 #endif 200 #define DEFLT F_USTAR /* default write format from list above */ 201 202 /* 203 * ford is the archive search order used by get_arc() to determine what kind 204 * of archive we are dealing with. This helps to properly id archive formats 205 * some formats may be subsets of others.... 206 */ 207 int ford[] = {F_USTAR, F_TAR, 208 #ifndef NO_CPIO 209 F_SV4CRC, F_SV4CPIO, F_CPIO, F_BCPIO, 210 #endif 211 -1}; 212 213 /* 214 * filename record separator 215 */ 216 int sep = '\n'; 217 218 /* 219 * Do we have -C anywhere? 220 */ 221 int havechd = 0; 222 223 /* 224 * options() 225 * figure out if we are pax, tar or cpio. Call the appropriate options 226 * parser 227 */ 228 229 void 230 options(int argc, char **argv) 231 { 232 233 /* 234 * Are we acting like pax, tar or cpio (based on argv[0]) 235 */ 236 if ((argv0 = strrchr(argv[0], '/')) != NULL) 237 argv0++; 238 else 239 argv0 = argv[0]; 240 241 if (strstr(argv0, NM_TAR)) { 242 argv0 = NM_TAR; 243 tar_options(argc, argv); 244 #ifndef NO_CPIO 245 } else if (strstr(argv0, NM_CPIO)) { 246 argv0 = NM_CPIO; 247 cpio_options(argc, argv); 248 #endif 249 } else { 250 argv0 = NM_PAX; 251 pax_options(argc, argv); 252 } 253 } 254 255 struct option pax_longopts[] = { 256 { "insecure", no_argument, 0, 257 OPT_INSECURE }, 258 { "force-local", no_argument, 0, 259 OPT_FORCE_LOCAL }, 260 { "use-compress-program", required_argument, 0, 261 OPT_USE_COMPRESS_PROGRAM }, 262 { "xz", no_argument, 0, 263 OPT_XZ }, 264 { "gnu", no_argument, 0, 265 OPT_GNU }, 266 { "timestamp", required_argument, 0, 267 OPT_TIMESTAMP }, 268 { 0, 0, 0, 269 0 }, 270 }; 271 272 /* 273 * pax_options() 274 * look at the user specified flags. set globals as required and check if 275 * the user specified a legal set of flags. If not, complain and exit 276 */ 277 278 static void 279 pax_options(int argc, char **argv) 280 { 281 int c; 282 size_t i; 283 u_int64_t flg = 0; 284 u_int64_t bflg = 0; 285 char *pt; 286 FSUB tmp; 287 288 /* 289 * process option flags 290 */ 291 while ((c = getopt_long(argc, argv, 292 "0ab:cdf:ijklno:p:rs:tuvwx:zAB:DE:G:HLMN:OPT:U:VXYZ", 293 pax_longopts, NULL)) != -1) { 294 switch (c) { 295 case '0': 296 sep = '\0'; 297 break; 298 case 'a': 299 /* 300 * append 301 */ 302 flg |= AF; 303 break; 304 case 'b': 305 /* 306 * specify blocksize 307 */ 308 flg |= BF; 309 if ((wrblksz = (int)str_offt(optarg)) <= 0) { 310 tty_warn(1, "Invalid block size %s", optarg); 311 pax_usage(); 312 } 313 break; 314 case 'c': 315 /* 316 * inverse match on patterns 317 */ 318 cflag = 1; 319 flg |= CF; 320 break; 321 case 'd': 322 /* 323 * match only dir on extract, not the subtree at dir 324 */ 325 dflag = 1; 326 flg |= DF; 327 break; 328 case 'f': 329 /* 330 * filename where the archive is stored 331 */ 332 arcname = optarg; 333 flg |= FF; 334 break; 335 case 'i': 336 /* 337 * interactive file rename 338 */ 339 iflag = 1; 340 flg |= IF; 341 break; 342 case 'j': 343 /* 344 * pass through bzip2 345 */ 346 gzip_program = BZIP2_CMD; 347 break; 348 case 'k': 349 /* 350 * do not clobber files that exist 351 */ 352 kflag = 1; 353 flg |= KF; 354 break; 355 case 'l': 356 /* 357 * try to link src to dest with copy (-rw) 358 */ 359 lflag = 1; 360 flg |= LF; 361 break; 362 case 'n': 363 /* 364 * select first match for a pattern only 365 */ 366 nflag = 1; 367 flg |= NF; 368 break; 369 case 'o': 370 /* 371 * pass format specific options 372 */ 373 flg |= OF; 374 if (opt_add(optarg) < 0) 375 pax_usage(); 376 break; 377 case 'p': 378 /* 379 * specify file characteristic options 380 */ 381 for (pt = optarg; *pt != '\0'; ++pt) { 382 switch(*pt) { 383 case 'a': 384 /* 385 * do not preserve access time 386 */ 387 patime = 0; 388 break; 389 case 'e': 390 /* 391 * preserve user id, group id, file 392 * mode, access/modification times 393 * and file flags. 394 */ 395 pids = 1; 396 pmode = 1; 397 patime = 1; 398 pmtime = 1; 399 pfflags = 1; 400 break; 401 #if 0 402 case 'f': 403 /* 404 * do not preserve file flags 405 */ 406 pfflags = 0; 407 break; 408 #endif 409 case 'm': 410 /* 411 * do not preserve modification time 412 */ 413 pmtime = 0; 414 break; 415 case 'o': 416 /* 417 * preserve uid/gid 418 */ 419 pids = 1; 420 break; 421 case 'p': 422 /* 423 * preserve file mode bits 424 */ 425 pmode = 1; 426 break; 427 default: 428 tty_warn(1, "Invalid -p string: %c", 429 *pt); 430 pax_usage(); 431 break; 432 } 433 } 434 flg |= PF; 435 break; 436 case 'r': 437 /* 438 * read the archive 439 */ 440 flg |= RF; 441 break; 442 case 's': 443 /* 444 * file name substitution name pattern 445 */ 446 if (rep_add(optarg) < 0) { 447 pax_usage(); 448 break; 449 } 450 flg |= SF; 451 break; 452 case 't': 453 /* 454 * preserve access time on filesystem nodes we read 455 */ 456 tflag = 1; 457 flg |= TF; 458 break; 459 case 'u': 460 /* 461 * ignore those older files 462 */ 463 uflag = 1; 464 flg |= UF; 465 break; 466 case 'v': 467 /* 468 * verbose operation mode 469 */ 470 vflag = 1; 471 flg |= VF; 472 break; 473 case 'w': 474 /* 475 * write an archive 476 */ 477 flg |= WF; 478 break; 479 case 'x': 480 /* 481 * specify an archive format on write 482 */ 483 tmp.name = optarg; 484 frmt = (FSUB *)bsearch((void *)&tmp, (void *)fsub, 485 sizeof(fsub)/sizeof(FSUB), sizeof(FSUB), c_frmt); 486 if (frmt != NULL) { 487 flg |= XF; 488 break; 489 } 490 tty_warn(1, "Unknown -x format: %s", optarg); 491 (void)fputs("pax: Known -x formats are:", stderr); 492 for (i = 0; i < (sizeof(fsub)/sizeof(FSUB)); ++i) 493 (void)fprintf(stderr, " %s", fsub[i].name); 494 (void)fputs("\n\n", stderr); 495 pax_usage(); 496 break; 497 case 'z': 498 /* 499 * use gzip. Non standard option. 500 */ 501 gzip_program = GZIP_CMD; 502 break; 503 case 'A': 504 Aflag = 1; 505 flg |= CAF; 506 break; 507 case 'B': 508 /* 509 * non-standard option on number of bytes written on a 510 * single archive volume. 511 */ 512 if ((wrlimit = str_offt(optarg)) <= 0) { 513 tty_warn(1, "Invalid write limit %s", optarg); 514 pax_usage(); 515 } 516 if (wrlimit % BLKMULT) { 517 tty_warn(1, 518 "Write limit is not a %d byte multiple", 519 BLKMULT); 520 pax_usage(); 521 } 522 flg |= CBF; 523 break; 524 case 'D': 525 /* 526 * On extraction check file inode change time before the 527 * modification of the file name. Non standard option. 528 */ 529 Dflag = 1; 530 flg |= CDF; 531 break; 532 case 'E': 533 /* 534 * non-standard limit on read faults 535 * 0 indicates stop after first error, values 536 * indicate a limit, "none" try forever 537 */ 538 flg |= CEF; 539 if (strcmp(none, optarg) == 0) 540 maxflt = -1; 541 else if ((maxflt = atoi(optarg)) < 0) { 542 tty_warn(1, 543 "Error count value must be positive"); 544 pax_usage(); 545 } 546 break; 547 case 'G': 548 /* 549 * non-standard option for selecting files within an 550 * archive by group (gid or name) 551 */ 552 if (grp_add(optarg) < 0) { 553 pax_usage(); 554 break; 555 } 556 flg |= CGF; 557 break; 558 case 'H': 559 /* 560 * follow command line symlinks only 561 */ 562 Hflag = 1; 563 flg |= CHF; 564 break; 565 case 'L': 566 /* 567 * follow symlinks 568 */ 569 Lflag = 1; 570 flg |= CLF; 571 break; 572 #ifdef SMALL 573 case 'M': 574 case 'N': 575 tty_warn(1, "Support for -%c is not compiled in", c); 576 exit(1); 577 #else /* !SMALL */ 578 case 'M': 579 /* 580 * Treat list of filenames on stdin as an 581 * mtree(8) specfile. Non standard option. 582 */ 583 Mflag = 1; 584 flg |= CMF; 585 break; 586 case 'N': 587 /* 588 * Use alternative directory for user db lookups. 589 */ 590 if (!setup_getid(optarg)) { 591 tty_warn(1, 592 "Unable to use user and group databases in `%s'", 593 optarg); 594 pax_usage(); 595 } 596 break; 597 #endif /* !SMALL */ 598 case 'O': 599 /* 600 * Force one volume. Non standard option. 601 */ 602 force_one_volume = 1; 603 break; 604 case 'P': 605 /* 606 * do NOT follow symlinks (default) 607 */ 608 Lflag = 0; 609 flg |= CPF; 610 break; 611 case 'T': 612 /* 613 * non-standard option for selecting files within an 614 * archive by modification time range (lower,upper) 615 */ 616 if (trng_add(optarg) < 0) { 617 pax_usage(); 618 break; 619 } 620 flg |= CTF; 621 break; 622 case 'U': 623 /* 624 * non-standard option for selecting files within an 625 * archive by user (uid or name) 626 */ 627 if (usr_add(optarg) < 0) { 628 pax_usage(); 629 break; 630 } 631 flg |= CUF; 632 break; 633 case 'V': 634 /* 635 * somewhat verbose operation mode (no listing) 636 */ 637 Vflag = 1; 638 flg |= VSF; 639 break; 640 case 'X': 641 /* 642 * do not pass over mount points in the file system 643 */ 644 Xflag = 1; 645 flg |= CXF; 646 break; 647 case 'Y': 648 /* 649 * On extraction check file inode change time after the 650 * modification of the file name. Non standard option. 651 */ 652 Yflag = 1; 653 flg |= CYF; 654 break; 655 case 'Z': 656 /* 657 * On extraction check modification time after the 658 * modification of the file name. Non standard option. 659 */ 660 Zflag = 1; 661 flg |= CZF; 662 break; 663 case OPT_INSECURE: 664 secure = 0; 665 break; 666 case OPT_FORCE_LOCAL: 667 forcelocal = 1; 668 break; 669 case OPT_USE_COMPRESS_PROGRAM: 670 gzip_program = optarg; 671 break; 672 case OPT_XZ: 673 gzip_program = XZ_CMD; 674 break; 675 case OPT_GNU: 676 is_gnutar = 1; 677 break; 678 #ifndef SMALL 679 case OPT_TIMESTAMP: 680 if (set_tstamp(optarg, &tst) == -1) { 681 tty_warn(1, "Invalid timestamp `%s'", optarg); 682 tar_usage(); 683 } 684 break; 685 #endif 686 case '?': 687 default: 688 pax_usage(); 689 break; 690 } 691 } 692 693 /* 694 * figure out the operation mode of pax read,write,extract,copy,append 695 * or list. check that we have not been given a bogus set of flags 696 * for the operation mode. 697 */ 698 if (ISLIST(flg)) { 699 act = LIST; 700 listf = stdout; 701 bflg = flg & BDLIST; 702 } else if (ISEXTRACT(flg)) { 703 act = EXTRACT; 704 bflg = flg & BDEXTR; 705 } else if (ISARCHIVE(flg)) { 706 act = ARCHIVE; 707 bflg = flg & BDARCH; 708 } else if (ISAPPND(flg)) { 709 act = APPND; 710 bflg = flg & BDARCH; 711 } else if (ISCOPY(flg)) { 712 act = COPY; 713 bflg = flg & BDCOPY; 714 } else 715 pax_usage(); 716 if (bflg) { 717 printflg(flg); 718 pax_usage(); 719 } 720 721 /* 722 * if we are writing (ARCHIVE) we use the default format if the user 723 * did not specify a format. when we write during an APPEND, we will 724 * adopt the format of the existing archive if none was supplied. 725 */ 726 if (!(flg & XF) && (act == ARCHIVE)) 727 frmt = &(fsub[DEFLT]); 728 729 /* 730 * process the args as they are interpreted by the operation mode 731 */ 732 switch (act) { 733 case LIST: 734 case EXTRACT: 735 for (; optind < argc; optind++) 736 if (pat_add(argv[optind], NULL, 0) < 0) 737 pax_usage(); 738 break; 739 case COPY: 740 if (optind >= argc) { 741 tty_warn(0, "Destination directory was not supplied"); 742 pax_usage(); 743 } 744 --argc; 745 dirptr = argv[argc]; 746 if (mkpath(dirptr) < 0) 747 exit(1); 748 /* FALLTHROUGH */ 749 case ARCHIVE: 750 case APPND: 751 for (; optind < argc; optind++) 752 if (ftree_add(argv[optind], 0) < 0) 753 pax_usage(); 754 /* 755 * no read errors allowed on updates/append operation! 756 */ 757 maxflt = 0; 758 break; 759 } 760 } 761 762 763 /* 764 * tar_options() 765 * look at the user specified flags. set globals as required and check if 766 * the user specified a legal set of flags. If not, complain and exit 767 */ 768 769 struct option tar_longopts[] = { 770 { "block-size", required_argument, 0, 'b' }, 771 { "bunzip2", no_argument, 0, 'j' }, 772 { "bzip2", no_argument, 0, 'j' }, 773 { "create", no_argument, 0, 'c' }, /* F */ 774 /* -e -- no corresponding long option */ 775 { "file", required_argument, 0, 'f' }, 776 { "dereference", no_argument, 0, 'h' }, 777 { "keep-old-files", no_argument, 0, 'k' }, 778 { "one-file-system", no_argument, 0, 'l' }, 779 { "modification-time", no_argument, 0, 'm' }, 780 { "old-archive", no_argument, 0, 'o' }, 781 { "portability", no_argument, 0, 'o' }, 782 { "same-permissions", no_argument, 0, 'p' }, 783 { "preserve-permissions", no_argument, 0, 'p' }, 784 { "preserve", no_argument, 0, 'p' }, 785 { "fast-read", no_argument, 0, 'q' }, 786 { "append", no_argument, 0, 'r' }, /* F */ 787 { "update", no_argument, 0, 'u' }, /* F */ 788 { "list", no_argument, 0, 't' }, /* F */ 789 { "verbose", no_argument, 0, 'v' }, 790 { "interactive", no_argument, 0, 'w' }, 791 { "confirmation", no_argument, 0, 'w' }, 792 { "extract", no_argument, 0, 'x' }, /* F */ 793 { "get", no_argument, 0, 'x' }, /* F */ 794 { "gzip", no_argument, 0, 'z' }, 795 { "gunzip", no_argument, 0, 'z' }, 796 { "read-full-blocks", no_argument, 0, 'B' }, 797 { "directory", required_argument, 0, 'C' }, 798 { "xz", no_argument, 0, 'J' }, 799 { "to-stdout", no_argument, 0, 'O' }, 800 { "absolute-paths", no_argument, 0, 'P' }, 801 { "sparse", no_argument, 0, 'S' }, 802 { "files-from", required_argument, 0, 'T' }, 803 { "summary", no_argument, 0, 'V' }, 804 { "stats", no_argument, 0, 'V' }, 805 { "exclude-from", required_argument, 0, 'X' }, 806 { "compress", no_argument, 0, 'Z' }, 807 { "uncompress", no_argument, 0, 'Z' }, 808 { "strict", no_argument, 0, 809 OPT_STRICT }, 810 { "atime-preserve", no_argument, 0, 811 OPT_ATIME_PRESERVE }, 812 { "unlink", no_argument, 0, 813 OPT_UNLINK }, 814 { "use-compress-program", required_argument, 0, 815 OPT_USE_COMPRESS_PROGRAM }, 816 { "force-local", no_argument, 0, 817 OPT_FORCE_LOCAL }, 818 { "insecure", no_argument, 0, 819 OPT_INSECURE }, 820 { "exclude", required_argument, 0, 821 OPT_EXCLUDE }, 822 { "no-recursion", no_argument, 0, 823 OPT_NORECURSE }, 824 #if !HAVE_NBTOOL_CONFIG_H 825 { "chroot", no_argument, 0, 826 OPT_CHROOT }, 827 #endif 828 { "timestamp", required_argument, 0, 829 OPT_TIMESTAMP }, 830 #if 0 /* Not implemented */ 831 { "catenate", no_argument, 0, 'A' }, /* F */ 832 { "concatenate", no_argument, 0, 'A' }, /* F */ 833 { "diff", no_argument, 0, 'd' }, /* F */ 834 { "compare", no_argument, 0, 'd' }, /* F */ 835 { "checkpoint", no_argument, 0, 836 OPT_CHECKPOINT }, 837 { "help", no_argument, 0, 838 OPT_HELP }, 839 { "info-script", required_argument, 0, 'F' }, 840 { "new-volume-script", required_argument, 0, 'F' }, 841 { "incremental", no_argument, 0, 'G' }, 842 { "listed-incremental", required_argument, 0, 'g' }, 843 { "ignore-zeros", no_argument, 0, 'i' }, 844 { "ignore-failed-read", no_argument, 0, 845 OPT_IGNORE_FAILED_READ }, 846 { "starting-file", no_argument, 0, 'K' }, 847 { "tape-length", required_argument, 0, 'L' }, 848 { "multi-volume", no_argument, 0, 'M' }, 849 { "after-date", required_argument, 0, 'N' }, 850 { "newer", required_argument, 0, 'N' }, 851 { "record-number", no_argument, 0, 'R' }, 852 { "remove-files", no_argument, 0, 853 OPT_REMOVE_FILES }, 854 { "same-order", no_argument, 0, 's' }, 855 { "preserve-order", no_argument, 0, 's' }, 856 { "null", no_argument, 0, 857 OPT_NULL }, 858 { "totals", no_argument, 0, 859 OPT_TOTALS }, 860 { "volume-name", required_argument, 0, 'V' }, /* XXX */ 861 { "label", required_argument, 0, 'V' }, /* XXX */ 862 { "version", no_argument, 0, 863 OPT_VERSION }, 864 { "verify", no_argument, 0, 'W' }, 865 { "block-compress", no_argument, 0, 866 OPT_BLOCK_COMPRESS }, 867 #endif 868 { 0, 0, 0, 0 }, 869 }; 870 871 static void 872 tar_set_action(int op) 873 { 874 if (act != ERROR && act != op) 875 tar_usage(); 876 act = op; 877 } 878 879 static void 880 tar_options(int argc, char **argv) 881 { 882 int c; 883 int fstdin = 0; 884 int Oflag = 0; 885 int nincfiles = 0; 886 int incfiles_max = 0; 887 struct incfile { 888 char *file; 889 char *dir; 890 }; 891 struct incfile *incfiles = NULL; 892 893 /* 894 * Set default values. 895 */ 896 rmleadslash = 1; 897 is_gnutar = 1; 898 899 /* 900 * process option flags 901 */ 902 while ((c = getoldopt(argc, argv, 903 "+b:cef:hjklmopqrs:tuvwxzBC:HI:JOPST:X:Z014578", 904 tar_longopts, NULL)) 905 != -1) { 906 switch(c) { 907 case 'b': 908 /* 909 * specify blocksize in 512-byte blocks 910 */ 911 if ((wrblksz = (int)str_offt(optarg)) <= 0) { 912 tty_warn(1, "Invalid block size %s", optarg); 913 tar_usage(); 914 } 915 wrblksz *= 512; /* XXX - check for int oflow */ 916 break; 917 case 'c': 918 /* 919 * create an archive 920 */ 921 tar_set_action(ARCHIVE); 922 break; 923 case 'e': 924 /* 925 * stop after first error 926 */ 927 maxflt = 0; 928 break; 929 case 'f': 930 /* 931 * filename where the archive is stored 932 */ 933 if ((optarg[0] == '-') && (optarg[1]== '\0')) { 934 /* 935 * treat a - as stdin 936 */ 937 fstdin = 1; 938 arcname = NULL; 939 break; 940 } 941 fstdin = 0; 942 arcname = optarg; 943 break; 944 case 'h': 945 /* 946 * follow symlinks 947 */ 948 Lflag = 1; 949 break; 950 case 'j': 951 /* 952 * pass through bzip2. not a standard option 953 */ 954 gzip_program = BZIP2_CMD; 955 break; 956 case 'k': 957 /* 958 * do not clobber files that exist 959 */ 960 kflag = 1; 961 break; 962 case 'l': 963 /* 964 * do not pass over mount points in the file system 965 */ 966 Xflag = 1; 967 break; 968 case 'm': 969 /* 970 * do not preserve modification time 971 */ 972 pmtime = 0; 973 break; 974 case 'o': 975 /* 976 * This option does several things based on whether 977 * this is a create or extract operation. 978 */ 979 if (act == ARCHIVE) { 980 /* GNU tar: write V7 format archives. */ 981 Oflag = 1; 982 /* 4.2BSD: don't add directory entries. */ 983 if (opt_add("write_opt=nodir") < 0) 984 tar_usage(); 985 986 } else { 987 /* SUS: don't preserve owner/group. */ 988 pids = 0; 989 nopids = 1; 990 } 991 break; 992 case 'p': 993 /* 994 * preserve user id, group id, file 995 * mode, access/modification times 996 */ 997 if (!nopids) 998 pids = 1; 999 pmode = 1; 1000 patime = 1; 1001 pmtime = 1; 1002 break; 1003 case 'q': 1004 /* 1005 * select first match for a pattern only 1006 */ 1007 nflag = 1; 1008 break; 1009 case 'r': 1010 case 'u': 1011 /* 1012 * append to the archive 1013 */ 1014 tar_set_action(APPND); 1015 break; 1016 case 's': 1017 /* 1018 * file name substitution name pattern 1019 */ 1020 if (rep_add(optarg) < 0) { 1021 tar_usage(); 1022 break; 1023 } 1024 break; 1025 case 't': 1026 /* 1027 * list contents of the tape 1028 */ 1029 tar_set_action(LIST); 1030 break; 1031 case 'v': 1032 /* 1033 * verbose operation mode 1034 */ 1035 vflag = 1; 1036 break; 1037 case 'w': 1038 /* 1039 * interactive file rename 1040 */ 1041 iflag = 1; 1042 break; 1043 case 'x': 1044 /* 1045 * extract an archive, preserving mode, 1046 * and mtime if possible. 1047 */ 1048 tar_set_action(EXTRACT); 1049 pmtime = 1; 1050 break; 1051 case 'z': 1052 /* 1053 * use gzip. Non standard option. 1054 */ 1055 gzip_program = GZIP_CMD; 1056 break; 1057 case 'B': 1058 /* 1059 * Nothing to do here, this is pax default 1060 */ 1061 break; 1062 case 'C': 1063 havechd++; 1064 chdname = optarg; 1065 break; 1066 case 'H': 1067 /* 1068 * follow command line symlinks only 1069 */ 1070 Hflag = 1; 1071 break; 1072 case 'I': 1073 case 'T': 1074 if (++nincfiles > incfiles_max) { 1075 incfiles_max = nincfiles + 3; 1076 incfiles = realloc(incfiles, 1077 sizeof(*incfiles) * incfiles_max); 1078 if (incfiles == NULL) { 1079 tty_warn(0, "Unable to allocate space " 1080 "for option list"); 1081 exit(1); 1082 } 1083 } 1084 incfiles[nincfiles - 1].file = optarg; 1085 incfiles[nincfiles - 1].dir = chdname; 1086 break; 1087 case 'J': 1088 gzip_program = XZ_CMD; 1089 break; 1090 case 'O': 1091 Oflag = 1; 1092 break; 1093 case 'P': 1094 /* 1095 * do not remove leading '/' from pathnames 1096 */ 1097 rmleadslash = 0; 1098 Aflag = 1; 1099 break; 1100 case 'S': 1101 /* do nothing; we already generate sparse files */ 1102 break; 1103 case 'V': 1104 /* 1105 * semi-verbose operation mode (no listing) 1106 */ 1107 Vflag = 1; 1108 break; 1109 case 'X': 1110 /* 1111 * GNU tar compat: exclude the files listed in optarg 1112 */ 1113 if (tar_gnutar_X_compat(optarg) != 0) 1114 tar_usage(); 1115 break; 1116 case 'Z': 1117 /* 1118 * use compress. 1119 */ 1120 gzip_program = COMPRESS_CMD; 1121 break; 1122 case '0': 1123 arcname = DEV_0; 1124 break; 1125 case '1': 1126 arcname = DEV_1; 1127 break; 1128 case '4': 1129 arcname = DEV_4; 1130 break; 1131 case '5': 1132 arcname = DEV_5; 1133 break; 1134 case '7': 1135 arcname = DEV_7; 1136 break; 1137 case '8': 1138 arcname = DEV_8; 1139 break; 1140 case OPT_ATIME_PRESERVE: 1141 patime = 1; 1142 break; 1143 case OPT_UNLINK: 1144 /* Just ignore -- we always unlink first. */ 1145 break; 1146 case OPT_USE_COMPRESS_PROGRAM: 1147 gzip_program = optarg; 1148 break; 1149 case OPT_FORCE_LOCAL: 1150 forcelocal = 1; 1151 break; 1152 case OPT_INSECURE: 1153 secure = 0; 1154 break; 1155 case OPT_STRICT: 1156 /* disable gnu extensions */ 1157 is_gnutar = 0; 1158 break; 1159 case OPT_EXCLUDE: 1160 if (tar_gnutar_minus_minus_exclude(optarg) != 0) 1161 tar_usage(); 1162 break; 1163 case OPT_NORECURSE: 1164 dflag = 1; 1165 break; 1166 #if !HAVE_NBTOOL_CONFIG_H 1167 case OPT_CHROOT: 1168 do_chroot = 1; 1169 break; 1170 #endif 1171 #ifndef SMALL 1172 case OPT_TIMESTAMP: 1173 if (set_tstamp(optarg, &tst) == -1) { 1174 tty_warn(1, "Invalid timestamp `%s'", optarg); 1175 tar_usage(); 1176 } 1177 break; 1178 #endif 1179 default: 1180 tar_usage(); 1181 break; 1182 } 1183 } 1184 argc -= optind; 1185 argv += optind; 1186 1187 /* Tar requires an action. */ 1188 if (act == ERROR) 1189 tar_usage(); 1190 1191 /* Traditional tar behaviour (pax uses stderr unless in list mode) */ 1192 if (fstdin == 1 && act == ARCHIVE) 1193 listf = stderr; 1194 else 1195 listf = stdout; 1196 1197 /* Traditional tar behaviour (pax wants to read file list from stdin) */ 1198 if ((act == ARCHIVE || act == APPND) && argc == 0 && nincfiles == 0) 1199 exit(0); 1200 /* 1201 * if we are writing (ARCHIVE) specify tar, otherwise run like pax 1202 * (unless -o specified) 1203 */ 1204 if (act == ARCHIVE || act == APPND) 1205 frmt = &(fsub[Oflag ? F_TAR : F_USTAR]); 1206 else if (Oflag) { 1207 if (act == EXTRACT) 1208 to_stdout = 1; 1209 else { 1210 tty_warn(1, "The -O/-o options are only valid when " 1211 "writing or extracting an archive"); 1212 tar_usage(); 1213 } 1214 } 1215 1216 /* 1217 * process the args as they are interpreted by the operation mode 1218 */ 1219 switch (act) { 1220 case LIST: 1221 case EXTRACT: 1222 default: 1223 { 1224 int sawpat = 0; 1225 int dirisnext = 0; 1226 char *file, *dir = NULL; 1227 int mustfreedir = 0; 1228 1229 while (nincfiles || *argv != NULL) { 1230 /* 1231 * If we queued up any include files, 1232 * pull them in now. Otherwise, check 1233 * for -I and -C positional flags. 1234 * Anything else must be a file to 1235 * extract. 1236 */ 1237 if (nincfiles) { 1238 file = incfiles->file; 1239 dir = incfiles->dir; 1240 mustfreedir = 0; 1241 incfiles++; 1242 nincfiles--; 1243 } else if (strcmp(*argv, "-I") == 0) { 1244 if (*++argv == NULL) 1245 break; 1246 file = *argv++; 1247 dir = chdname; 1248 mustfreedir = 0; 1249 } else { 1250 file = NULL; 1251 dir = NULL; 1252 mustfreedir = 0; 1253 } 1254 if (file != NULL) { 1255 FILE *fp; 1256 char *str; 1257 1258 if (strcmp(file, "-") == 0) 1259 fp = stdin; 1260 else if ((fp = fopen(file, "r")) == NULL) { 1261 tty_warn(1, "Unable to open file '%s' for read", file); 1262 tar_usage(); 1263 } 1264 while ((str = get_line(fp)) != NULL) { 1265 if (dirisnext) { 1266 if (dir && mustfreedir) 1267 free(dir); 1268 dir = str; 1269 mustfreedir = 1; 1270 dirisnext = 0; 1271 continue; 1272 } 1273 if (strcmp(str, "-C") == 0) { 1274 havechd++; 1275 dirisnext = 1; 1276 free(str); 1277 continue; 1278 } 1279 if (strncmp(str, "-C ", 3) == 0) { 1280 havechd++; 1281 if (dir && mustfreedir) 1282 free(dir); 1283 dir = strdup(str + 3); 1284 mustfreedir = 1; 1285 free(str); 1286 continue; 1287 } 1288 if (pat_add(str, dir, NOGLOB_MTCH) < 0) 1289 tar_usage(); 1290 sawpat = 1; 1291 } 1292 /* Bomb if given -C w/out a dir. */ 1293 if (dirisnext) 1294 tar_usage(); 1295 if (dir && mustfreedir) 1296 free(dir); 1297 if (strcmp(file, "-") != 0) 1298 fclose(fp); 1299 if (get_line_error) { 1300 tty_warn(1, "Problem with file '%s'", file); 1301 tar_usage(); 1302 } 1303 } else if (strcmp(*argv, "-C") == 0) { 1304 if (*++argv == NULL) 1305 break; 1306 chdname = *argv++; 1307 havechd++; 1308 } else if (pat_add(*argv++, chdname, 0) < 0) 1309 tar_usage(); 1310 else 1311 sawpat = 1; 1312 } 1313 /* 1314 * if patterns were added, we are doing chdir() 1315 * on a file-by-file basis, else, just one 1316 * global chdir (if any) after opening input. 1317 */ 1318 if (sawpat > 0) 1319 chdname = NULL; 1320 } 1321 break; 1322 case ARCHIVE: 1323 case APPND: 1324 if (chdname != NULL) { /* initial chdir() */ 1325 if (ftree_add(chdname, 1) < 0) 1326 tar_usage(); 1327 } 1328 1329 while (nincfiles || *argv != NULL) { 1330 char *file, *dir; 1331 1332 /* 1333 * If we queued up any include files, pull them in 1334 * now. Otherwise, check for -I and -C positional 1335 * flags. Anything else must be a file to include 1336 * in the archive. 1337 */ 1338 if (nincfiles) { 1339 file = incfiles->file; 1340 dir = incfiles->dir; 1341 incfiles++; 1342 nincfiles--; 1343 } else if (strcmp(*argv, "-I") == 0) { 1344 if (*++argv == NULL) 1345 break; 1346 file = *argv++; 1347 dir = NULL; 1348 } else { 1349 file = NULL; 1350 dir = NULL; 1351 } 1352 if (file != NULL) { 1353 FILE *fp; 1354 char *str; 1355 int dirisnext = 0; 1356 1357 /* Set directory if needed */ 1358 if (dir) { 1359 if (ftree_add(dir, 1) < 0) 1360 tar_usage(); 1361 } 1362 1363 if (strcmp(file, "-") == 0) 1364 fp = stdin; 1365 else if ((fp = fopen(file, "r")) == NULL) { 1366 tty_warn(1, "Unable to open file '%s' for read", file); 1367 tar_usage(); 1368 } 1369 while ((str = get_line(fp)) != NULL) { 1370 if (dirisnext) { 1371 if (ftree_add(str, 1) < 0) 1372 tar_usage(); 1373 dirisnext = 0; 1374 continue; 1375 } 1376 if (strcmp(str, "-C") == 0) { 1377 dirisnext = 1; 1378 continue; 1379 } 1380 if (strncmp(str, "-C ", 3) == 0) { 1381 if (ftree_add(str + 3, 1) < 0) 1382 tar_usage(); 1383 continue; 1384 } 1385 if (ftree_add(str, 0) < 0) 1386 tar_usage(); 1387 } 1388 /* Bomb if given -C w/out a dir. */ 1389 if (dirisnext) 1390 tar_usage(); 1391 if (strcmp(file, "-") != 0) 1392 fclose(fp); 1393 if (get_line_error) { 1394 tty_warn(1, "Problem with file '%s'", 1395 file); 1396 tar_usage(); 1397 } 1398 } else if (strcmp(*argv, "-C") == 0) { 1399 if (*++argv == NULL) 1400 break; 1401 if (ftree_add(*argv++, 1) < 0) 1402 tar_usage(); 1403 } else if (ftree_add(*argv++, 0) < 0) 1404 tar_usage(); 1405 } 1406 /* 1407 * no read errors allowed on updates/append operation! 1408 */ 1409 maxflt = 0; 1410 break; 1411 } 1412 if (!fstdin && ((arcname == NULL) || (*arcname == '\0'))) { 1413 arcname = getenv("TAPE"); 1414 if ((arcname == NULL) || (*arcname == '\0')) 1415 arcname = _PATH_DEFTAPE; 1416 } 1417 } 1418 1419 int 1420 mkpath(char *path) 1421 { 1422 char *slash; 1423 int done = 0; 1424 1425 slash = path; 1426 1427 while (!done) { 1428 slash += strspn(slash, "/"); 1429 slash += strcspn(slash, "/"); 1430 1431 done = (*slash == '\0'); 1432 *slash = '\0'; 1433 1434 if (domkdir(path, 0777) == -1) 1435 goto out; 1436 1437 if (!done) 1438 *slash = '/'; 1439 } 1440 1441 return 0; 1442 out: 1443 /* Can't create or or not a directory */ 1444 syswarn(1, errno, "Cannot create directory `%s'", path); 1445 return -1; 1446 } 1447 1448 1449 #ifndef NO_CPIO 1450 struct option cpio_longopts[] = { 1451 { "reset-access-time", no_argument, 0, 'a' }, 1452 { "make-directories", no_argument, 0, 'd' }, 1453 { "nonmatching", no_argument, 0, 'f' }, 1454 { "extract", no_argument, 0, 'i' }, 1455 { "link", no_argument, 0, 'l' }, 1456 { "preserve-modification-time", no_argument, 0, 'm' }, 1457 { "create", no_argument, 0, 'o' }, 1458 { "pass-through", no_argument, 0, 'p' }, 1459 { "rename", no_argument, 0, 'r' }, 1460 { "list", no_argument, 0, 't' }, 1461 { "unconditional", no_argument, 0, 'u' }, 1462 { "verbose", no_argument, 0, 'v' }, 1463 { "append", no_argument, 0, 'A' }, 1464 { "pattern-file", required_argument, 0, 'E' }, 1465 { "file", required_argument, 0, 'F' }, 1466 { "force-local", no_argument, 0, 1467 OPT_FORCE_LOCAL }, 1468 { "format", required_argument, 0, 'H' }, 1469 { "dereference", no_argument, 0, 'L' }, 1470 { "swap-halfwords", no_argument, 0, 'S' }, 1471 { "summary", no_argument, 0, 'V' }, 1472 { "stats", no_argument, 0, 'V' }, 1473 { "insecure", no_argument, 0, 1474 OPT_INSECURE }, 1475 { "sparse", no_argument, 0, 1476 OPT_SPARSE }, 1477 { "xz", no_argument, 0, 1478 OPT_XZ }, 1479 1480 #ifdef notyet 1481 /* Not implemented */ 1482 { "null", no_argument, 0, '0' }, 1483 { "swap", no_argument, 0, 'b' }, 1484 { "numeric-uid-gid", no_argument, 0, 'n' }, 1485 { "swap-bytes", no_argument, 0, 's' }, 1486 { "message", required_argument, 0, 'M' }, 1487 { "owner", required_argument, 0 'R' }, 1488 { "dot", no_argument, 0, 'V' }, /* xxx */ 1489 { "block-size", required_argument, 0, 1490 OPT_BLOCK_SIZE }, 1491 { "no-absolute-pathnames", no_argument, 0, 1492 OPT_NO_ABSOLUTE_PATHNAMES }, 1493 { "no-preserve-owner", no_argument, 0, 1494 OPT_NO_PRESERVE_OWNER }, 1495 { "only-verify-crc", no_argument, 0, 1496 OPT_ONLY_VERIFY_CRC }, 1497 { "rsh-command", required_argument, 0, 1498 OPT_RSH_COMMAND }, 1499 { "version", no_argument, 0, 1500 OPT_VERSION }, 1501 #endif 1502 { 0, 0, 0, 0 }, 1503 }; 1504 1505 static void 1506 cpio_set_action(int op) 1507 { 1508 if ((act == APPND && op == ARCHIVE) || (act == ARCHIVE && op == APPND)) 1509 act = APPND; 1510 else if (act == EXTRACT && op == LIST) 1511 act = op; 1512 else if (act != ERROR && act != op) 1513 cpio_usage(); 1514 else 1515 act = op; 1516 } 1517 1518 /* 1519 * cpio_options() 1520 * look at the user specified flags. set globals as required and check if 1521 * the user specified a legal set of flags. If not, complain and exit 1522 */ 1523 1524 static void 1525 cpio_options(int argc, char **argv) 1526 { 1527 FSUB tmp; 1528 u_int64_t flg = 0; 1529 u_int64_t bflg = 0; 1530 int c; 1531 size_t i; 1532 FILE *fp; 1533 char *str; 1534 1535 uflag = 1; 1536 kflag = 1; 1537 pids = 1; 1538 pmode = 1; 1539 pmtime = 0; 1540 arcname = NULL; 1541 dflag = 1; 1542 nodirs = 1; 1543 /* 1544 * process option flags 1545 */ 1546 while ((c = getoldopt(argc, argv, 1547 "+abcdfiklmoprstuvzABC:E:F:H:I:LM:O:R:SVZ6", 1548 cpio_longopts, NULL)) != -1) { 1549 switch(c) { 1550 case 'a': 1551 /* 1552 * preserve access time on filesystem nodes we read 1553 */ 1554 tflag = 1; 1555 flg |= TF; 1556 break; 1557 #ifdef notyet 1558 case 'b': 1559 /* 1560 * swap bytes and half-words when reading data 1561 */ 1562 break; 1563 #endif 1564 case 'c': 1565 /* 1566 * ASCII cpio header 1567 */ 1568 frmt = &fsub[F_SV4CPIO]; 1569 break; 1570 case 'd': 1571 /* 1572 * create directories as needed 1573 * pax does this by default .. 1574 */ 1575 nodirs = 0; 1576 break; 1577 case 'f': 1578 /* 1579 * inverse match on patterns 1580 */ 1581 cflag = 1; 1582 flg |= CF; 1583 break; 1584 case 'i': 1585 /* 1586 * read the archive 1587 */ 1588 cpio_set_action(EXTRACT); 1589 flg |= RF; 1590 break; 1591 #ifdef notyet 1592 case 'k': 1593 break; 1594 #endif 1595 case 'l': 1596 /* 1597 * try to link src to dest with copy (-rw) 1598 */ 1599 lflag = 1; 1600 flg |= LF; 1601 break; 1602 case 'm': 1603 /* 1604 * preserve mtime 1605 */ 1606 flg |= PF; 1607 pmtime = 1; 1608 break; 1609 case 'o': 1610 /* 1611 * write an archive 1612 */ 1613 cpio_set_action(ARCHIVE); 1614 frmt = &(fsub[F_SV4CRC]); 1615 flg |= WF; 1616 break; 1617 case 'p': 1618 /* 1619 * cpio -p is like pax -rw 1620 */ 1621 cpio_set_action(COPY); 1622 flg |= RF | WF; 1623 break; 1624 case 'r': 1625 /* 1626 * interactive file rename 1627 */ 1628 iflag = 1; 1629 flg |= IF; 1630 break; 1631 #ifdef notyet 1632 case 's': 1633 /* 1634 * swap bytes after reading data 1635 */ 1636 break; 1637 #endif 1638 case 't': 1639 /* 1640 * list contents of archive 1641 */ 1642 cpio_set_action(LIST); 1643 listf = stdout; 1644 flg &= ~RF; 1645 break; 1646 case 'u': 1647 /* 1648 * don't ignore those older files 1649 */ 1650 uflag = 0; 1651 kflag = 0; 1652 flg |= UF; 1653 break; 1654 case 'v': 1655 /* 1656 * verbose operation mode 1657 */ 1658 vflag = 1; 1659 flg |= VF; 1660 break; 1661 case 'z': 1662 /* 1663 * use gzip. Non standard option. 1664 */ 1665 gzip_program = GZIP_CMD; 1666 break; 1667 case 'A': 1668 /* 1669 * append to an archive 1670 */ 1671 cpio_set_action(APPND); 1672 flg |= AF; 1673 break; 1674 case 'B': 1675 /* 1676 * set blocksize to 5120 1677 */ 1678 blksz = 5120; 1679 break; 1680 case 'C': 1681 /* 1682 * specify blocksize 1683 */ 1684 if ((blksz = (int)str_offt(optarg)) <= 0) { 1685 tty_warn(1, "Invalid block size %s", optarg); 1686 cpio_usage(); 1687 } 1688 break; 1689 case 'E': 1690 /* 1691 * file with patterns to extract or list 1692 */ 1693 if ((fp = fopen(optarg, "r")) == NULL) { 1694 tty_warn(1, "Unable to open file '%s' for read", 1695 optarg); 1696 cpio_usage(); 1697 } 1698 while ((str = get_line(fp)) != NULL) { 1699 pat_add(str, NULL, 0); 1700 } 1701 fclose(fp); 1702 if (get_line_error) { 1703 tty_warn(1, "Problem with file '%s'", optarg); 1704 cpio_usage(); 1705 } 1706 break; 1707 case 'H': 1708 /* 1709 * specify an archive format on write 1710 */ 1711 tmp.name = optarg; 1712 frmt = (FSUB *)bsearch((void *)&tmp, (void *)fsub, 1713 sizeof(fsub)/sizeof(FSUB), sizeof(FSUB), c_frmt); 1714 if (frmt != NULL) { 1715 flg |= XF; 1716 break; 1717 } 1718 tty_warn(1, "Unknown -H format: %s", optarg); 1719 (void)fputs("cpio: Known -H formats are:", stderr); 1720 for (i = 0; i < (sizeof(fsub)/sizeof(FSUB)); ++i) 1721 (void)fprintf(stderr, " %s", fsub[i].name); 1722 (void)fputs("\n\n", stderr); 1723 cpio_usage(); 1724 break; 1725 case 'F': 1726 case 'I': 1727 case 'O': 1728 /* 1729 * filename where the archive is stored 1730 */ 1731 if ((optarg[0] == '-') && (optarg[1]== '\0')) { 1732 /* 1733 * treat a - as stdin 1734 */ 1735 arcname = NULL; 1736 break; 1737 } 1738 arcname = optarg; 1739 break; 1740 case 'L': 1741 /* 1742 * follow symlinks 1743 */ 1744 Lflag = 1; 1745 flg |= CLF; 1746 break; 1747 #ifdef notyet 1748 case 'M': 1749 arg = optarg; 1750 break; 1751 case 'R': 1752 arg = optarg; 1753 break; 1754 #endif 1755 case 'S': 1756 /* 1757 * swap halfwords after reading data 1758 */ 1759 cpio_swp_head = 1; 1760 break; 1761 #ifdef notyet 1762 case 'V': /* print a '.' for each file processed */ 1763 break; 1764 #endif 1765 case 'V': 1766 /* 1767 * semi-verbose operation mode (no listing) 1768 */ 1769 Vflag = 1; 1770 flg |= VF; 1771 break; 1772 case 'Z': 1773 /* 1774 * use compress. Non standard option. 1775 */ 1776 gzip_program = COMPRESS_CMD; 1777 break; 1778 case '6': 1779 /* 1780 * process Version 6 cpio format 1781 */ 1782 frmt = &(fsub[F_BCPIO]); 1783 break; 1784 case OPT_FORCE_LOCAL: 1785 forcelocal = 1; 1786 break; 1787 case OPT_INSECURE: 1788 secure = 0; 1789 break; 1790 case OPT_SPARSE: 1791 /* do nothing; we already generate sparse files */ 1792 break; 1793 case OPT_XZ: 1794 gzip_program = XZ_CMD; 1795 break; 1796 default: 1797 cpio_usage(); 1798 break; 1799 } 1800 } 1801 1802 /* 1803 * figure out the operation mode of cpio. check that we have not been 1804 * given a bogus set of flags for the operation mode. 1805 */ 1806 if (ISLIST(flg)) { 1807 act = LIST; 1808 bflg = flg & BDLIST; 1809 } else if (ISEXTRACT(flg)) { 1810 act = EXTRACT; 1811 bflg = flg & BDEXTR; 1812 } else if (ISARCHIVE(flg)) { 1813 act = ARCHIVE; 1814 bflg = flg & BDARCH; 1815 } else if (ISAPPND(flg)) { 1816 act = APPND; 1817 bflg = flg & BDARCH; 1818 } else if (ISCOPY(flg)) { 1819 act = COPY; 1820 bflg = flg & BDCOPY; 1821 } else 1822 cpio_usage(); 1823 if (bflg) { 1824 cpio_usage(); 1825 } 1826 1827 /* 1828 * if we are writing (ARCHIVE) we use the default format if the user 1829 * did not specify a format. when we write during an APPEND, we will 1830 * adopt the format of the existing archive if none was supplied. 1831 */ 1832 if (!(flg & XF) && (act == ARCHIVE)) 1833 frmt = &(fsub[F_BCPIO]); 1834 1835 /* 1836 * process the args as they are interpreted by the operation mode 1837 */ 1838 switch (act) { 1839 case LIST: 1840 case EXTRACT: 1841 for (; optind < argc; optind++) 1842 if (pat_add(argv[optind], NULL, 0) < 0) 1843 cpio_usage(); 1844 break; 1845 case COPY: 1846 if (optind >= argc) { 1847 tty_warn(0, "Destination directory was not supplied"); 1848 cpio_usage(); 1849 } 1850 --argc; 1851 dirptr = argv[argc]; 1852 /* FALLTHROUGH */ 1853 case ARCHIVE: 1854 case APPND: 1855 if (argc != optind) { 1856 for (; optind < argc; optind++) 1857 if (ftree_add(argv[optind], 0) < 0) 1858 cpio_usage(); 1859 break; 1860 } 1861 /* 1862 * no read errors allowed on updates/append operation! 1863 */ 1864 maxflt = 0; 1865 while ((str = get_line(stdin)) != NULL) { 1866 ftree_add(str, 0); 1867 } 1868 if (get_line_error) { 1869 tty_warn(1, "Problem while reading stdin"); 1870 cpio_usage(); 1871 } 1872 break; 1873 default: 1874 cpio_usage(); 1875 break; 1876 } 1877 } 1878 #endif 1879 1880 /* 1881 * printflg() 1882 * print out those invalid flag sets found to the user 1883 */ 1884 1885 static void 1886 printflg(unsigned int flg) 1887 { 1888 int nxt; 1889 1890 (void)fprintf(stderr,"%s: Invalid combination of options:", argv0); 1891 while ((nxt = ffs(flg)) != 0) { 1892 flg &= ~(1 << (nxt - 1)); 1893 (void)fprintf(stderr, " -%c", flgch[nxt - 1]); 1894 } 1895 (void)putc('\n', stderr); 1896 } 1897 1898 /* 1899 * c_frmt() 1900 * comparison routine used by bsearch to find the format specified 1901 * by the user 1902 */ 1903 1904 static int 1905 c_frmt(const void *a, const void *b) 1906 { 1907 return strcmp(((const FSUB *)a)->name, ((const FSUB *)b)->name); 1908 } 1909 1910 /* 1911 * opt_next() 1912 * called by format specific options routines to get each format specific 1913 * flag and value specified with -o 1914 * Return: 1915 * pointer to next OPLIST entry or NULL (end of list). 1916 */ 1917 1918 OPLIST * 1919 opt_next(void) 1920 { 1921 OPLIST *opt; 1922 1923 if ((opt = ophead) != NULL) 1924 ophead = ophead->fow; 1925 return opt; 1926 } 1927 1928 /* 1929 * bad_opt() 1930 * generic routine used to complain about a format specific options 1931 * when the format does not support options. 1932 */ 1933 1934 int 1935 bad_opt(void) 1936 { 1937 OPLIST *opt; 1938 1939 if (ophead == NULL) 1940 return 0; 1941 /* 1942 * print all we were given 1943 */ 1944 tty_warn(1," These format options are not supported for %s", 1945 frmt->name); 1946 while ((opt = opt_next()) != NULL) 1947 (void)fprintf(stderr, "\t%s = %s\n", opt->name, opt->value); 1948 if (strcmp(NM_TAR, argv0) == 0) 1949 tar_usage(); 1950 #ifndef NO_CPIO 1951 else if (strcmp(NM_CPIO, argv0) == 0) 1952 cpio_usage(); 1953 #endif 1954 else 1955 pax_usage(); 1956 return 0; 1957 } 1958 1959 /* 1960 * opt_add() 1961 * breaks the value supplied to -o into a option name and value. options 1962 * are given to -o in the form -o name-value,name=value 1963 * multiple -o may be specified. 1964 * Return: 1965 * 0 if format in name=value format, -1 if -o is passed junk 1966 */ 1967 1968 int 1969 opt_add(const char *str) 1970 { 1971 OPLIST *opt; 1972 char *frpt; 1973 char *pt; 1974 char *endpt; 1975 char *dstr; 1976 1977 if ((str == NULL) || (*str == '\0')) { 1978 tty_warn(0, "Invalid option name"); 1979 return -1; 1980 } 1981 if ((dstr = strdup(str)) == NULL) { 1982 tty_warn(0, "Unable to allocate space for option list"); 1983 return -1; 1984 } 1985 frpt = endpt = dstr; 1986 1987 /* 1988 * break into name and values pieces and stuff each one into a 1989 * OPLIST structure. When we know the format, the format specific 1990 * option function will go through this list 1991 */ 1992 while ((frpt != NULL) && (*frpt != '\0')) { 1993 if ((endpt = strchr(frpt, ',')) != NULL) 1994 *endpt = '\0'; 1995 if ((pt = strchr(frpt, '=')) == NULL) { 1996 tty_warn(0, "Invalid options format"); 1997 free(dstr); 1998 return -1; 1999 } 2000 if ((opt = (OPLIST *)malloc(sizeof(OPLIST))) == NULL) { 2001 tty_warn(0, "Unable to allocate space for option list"); 2002 free(dstr); 2003 return -1; 2004 } 2005 *pt++ = '\0'; 2006 opt->name = frpt; 2007 opt->value = pt; 2008 opt->fow = NULL; 2009 if (endpt != NULL) 2010 frpt = endpt + 1; 2011 else 2012 frpt = NULL; 2013 if (ophead == NULL) { 2014 optail = ophead = opt; 2015 continue; 2016 } 2017 optail->fow = opt; 2018 optail = opt; 2019 } 2020 return 0; 2021 } 2022 2023 /* 2024 * str_offt() 2025 * Convert an expression of the following forms to an off_t > 0. 2026 * 1) A positive decimal number. 2027 * 2) A positive decimal number followed by a b (mult by 512). 2028 * 3) A positive decimal number followed by a k (mult by 1024). 2029 * 4) A positive decimal number followed by a m (mult by 512). 2030 * 5) A positive decimal number followed by a w (mult by sizeof int) 2031 * 6) Two or more positive decimal numbers (with/without k,b or w). 2032 * separated by x (also * for backwards compatibility), specifying 2033 * the product of the indicated values. 2034 * Return: 2035 * 0 for an error, a positive value o.w. 2036 */ 2037 2038 static off_t 2039 str_offt(char *val) 2040 { 2041 char *expr; 2042 off_t num, t; 2043 2044 num = STRTOOFFT(val, &expr, 0); 2045 if ((num == OFFT_MAX) || (num <= 0) || (expr == val)) 2046 return 0; 2047 2048 switch(*expr) { 2049 case 'b': 2050 t = num; 2051 num *= 512; 2052 if (t > num) 2053 return 0; 2054 ++expr; 2055 break; 2056 case 'k': 2057 t = num; 2058 num *= 1024; 2059 if (t > num) 2060 return 0; 2061 ++expr; 2062 break; 2063 case 'm': 2064 t = num; 2065 num *= 1048576; 2066 if (t > num) 2067 return 0; 2068 ++expr; 2069 break; 2070 case 'w': 2071 t = num; 2072 num *= sizeof(int); 2073 if (t > num) 2074 return 0; 2075 ++expr; 2076 break; 2077 } 2078 2079 switch(*expr) { 2080 case '\0': 2081 break; 2082 case '*': 2083 case 'x': 2084 t = num; 2085 num *= str_offt(expr + 1); 2086 if (t > num) 2087 return 0; 2088 break; 2089 default: 2090 return 0; 2091 } 2092 return num; 2093 } 2094 2095 static char * 2096 get_line(FILE *f) 2097 { 2098 char *name, *temp; 2099 size_t len; 2100 2101 name = fgetln(f, &len); 2102 if (!name) { 2103 get_line_error = ferror(f) ? GETLINE_FILE_CORRUPT : 0; 2104 return 0; 2105 } 2106 if (name[len-1] != '\n') 2107 len++; 2108 temp = malloc(len); 2109 if (!temp) { 2110 get_line_error = GETLINE_OUT_OF_MEM; 2111 return 0; 2112 } 2113 memcpy(temp, name, len-1); 2114 temp[len-1] = 0; 2115 return temp; 2116 } 2117 2118 #ifndef SMALL 2119 /* 2120 * set_tstamp() 2121 * Use a specific timestamp for all individual files created in the 2122 * archive 2123 */ 2124 static int 2125 set_tstamp(const char *b, struct stat *st) 2126 { 2127 time_t when; 2128 char *eb; 2129 long long l; 2130 2131 if (stat(b, st) != -1) 2132 return 0; 2133 2134 #ifndef HAVE_NBTOOL_CONFIG_H 2135 errno = 0; 2136 if ((when = parsedate(b, NULL, NULL)) == -1 && errno != 0) 2137 #endif 2138 { 2139 errno = 0; 2140 l = strtoll(b, &eb, 0); 2141 if (b == eb || *eb || errno) 2142 return -1; 2143 when = (time_t)l; 2144 } 2145 2146 st->st_ino = 1; 2147 #if HAVE_STRUCT_STAT_BIRTHTIME 2148 st->st_birthtime = 2149 #endif 2150 st->st_mtime = st->st_ctime = st->st_atime = when; 2151 return 0; 2152 } 2153 #endif 2154 2155 /* 2156 * no_op() 2157 * for those option functions where the archive format has nothing to do. 2158 * Return: 2159 * 0 2160 */ 2161 2162 static int 2163 no_op(void) 2164 { 2165 return 0; 2166 } 2167 2168 /* 2169 * pax_usage() 2170 * print the usage summary to the user 2171 */ 2172 2173 static void 2174 pax_usage(void) 2175 { 2176 fprintf(stderr, 2177 "usage: pax [-0cdjnvzVO] [-E limit] [-f archive] [-N dbdir] [-s replstr] ...\n" 2178 " [-U user] ... [-G group] ... [-T [from_date][,to_date]] ...\n" 2179 " [pattern ...]\n"); 2180 fprintf(stderr, 2181 " pax -r [-cdijknuvzADOVYZ] [-E limit] [-f archive] [-N dbdir]\n" 2182 " [-o options] ... [-p string] ... [-s replstr] ... [-U user] ...\n" 2183 " [-G group] ... [-T [from_date][,to_date]] ... [pattern ...]\n"); 2184 fprintf(stderr, 2185 " pax -w [-dijtuvzAHLMOPVX] [-b blocksize] [[-a] [-f archive]] [-x format]\n" 2186 " [-B bytes] [-N dbdir] [-o options] ... [-s replstr] ...\n" 2187 " [-U user] ... [-G group] ...\n" 2188 " [-T [from_date][,to_date][/[c][m]]] ... [file ...]\n"); 2189 fprintf(stderr, 2190 " pax -r -w [-dijklntuvzADHLMOPVXYZ] [-N dbdir] [-p string] ...\n" 2191 " [-s replstr] ... [-U user] ... [-G group] ...\n" 2192 " [-T [from_date][,to_date][/[c][m]]] ... [file ...] directory\n"); 2193 exit(1); 2194 /* NOTREACHED */ 2195 } 2196 2197 /* 2198 * tar_usage() 2199 * print the usage summary to the user 2200 */ 2201 2202 static void 2203 tar_usage(void) 2204 { 2205 (void)fputs("usage: tar [-]{crtux}[-befhjklmopqvwzHJOPSXZ014578] " 2206 "[archive] [blocksize]\n" 2207 " [-C directory] [-T file] [-s replstr] " 2208 "[file ...]\n", stderr); 2209 exit(1); 2210 /* NOTREACHED */ 2211 } 2212 2213 #ifndef NO_CPIO 2214 /* 2215 * cpio_usage() 2216 * print the usage summary to the user 2217 */ 2218 2219 static void 2220 cpio_usage(void) 2221 { 2222 2223 (void)fputs("usage: cpio -o [-aABcLvzZ] [-C bytes] [-F archive] " 2224 "[-H format] [-O archive]\n" 2225 " < name-list [> archive]\n" 2226 " cpio -i [-bBcdfmrsStuvzZ6] [-C bytes] [-E file] " 2227 "[-F archive] [-H format] \n" 2228 " [-I archive] " 2229 "[pattern ...] [< archive]\n" 2230 " cpio -p [-adlLmuv] destination-directory " 2231 "< name-list\n", stderr); 2232 exit(1); 2233 /* NOTREACHED */ 2234 } 2235 #endif 2236
Indexes created Mon Sep 29 21:09:56 GMT 2025