options.c revision 1.119
1 /* $NetBSD: options.c,v 1.119 2020/04/03 16:13:32 joerg 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 1.119 2020/04/03 16:13:32 joerg 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 <unistd.h> 65 #include <inttypes.h> 66 #include <paths.h> 67 #include <util.h> 68 #include "pax.h" 69 #include "options.h" 70 #include "cpio.h" 71 #include "tar.h" 72 #include "extern.h" 73 #ifndef SMALL 74 #include "mtree.h" 75 #endif /* SMALL */ 76 77 char *chdname; 78 #if !HAVE_NBTOOL_CONFIG_H 79 int do_chroot; 80 #endif 81 82 /* 83 * Routines which handle command line options 84 */ 85 struct stat tst; /* Timestamp to set if non-0 */ 86 87 static int nopids; /* tar mode: suppress "pids" for -p option */ 88 static char flgch[] = FLGCH; /* list of all possible flags (pax) */ 89 static OPLIST *ophead = NULL; /* head for format specific options -x */ 90 static OPLIST *optail = NULL; /* option tail */ 91 92 static int opt_add(const char *); 93 static int no_op(void); 94 static void printflg(unsigned int); 95 static int c_frmt(const void *, const void *); 96 static off_t str_offt(char *); 97 static char *get_line(FILE *fp); 98 #ifndef SMALL 99 static int set_tstamp(const char *, struct stat *); 100 #endif 101 static void pax_options(int, char **); 102 __dead static void pax_usage(void); 103 static void tar_options(int, char **); 104 __dead static void tar_usage(void); 105 #ifndef NO_CPIO 106 static void cpio_options(int, char **); 107 __dead static void cpio_usage(void); 108 #endif 109 110 /* errors from get_line */ 111 #define GETLINE_FILE_CORRUPT 1 112 #define GETLINE_OUT_OF_MEM 2 113 static int get_line_error; 114 115 #define BZIP2_CMD "bzip2" /* command to run as bzip2 */ 116 #define GZIP_CMD "gzip" /* command to run as gzip */ 117 #define XZ_CMD "xz" /* command to run as xz */ 118 #define COMPRESS_CMD "compress" /* command to run as compress */ 119 120 /* 121 * Long options. 122 */ 123 #define OPT_USE_COMPRESS_PROGRAM 0 124 #define OPT_CHECKPOINT 1 125 #define OPT_UNLINK 2 126 #define OPT_HELP 3 127 #define OPT_ATIME_PRESERVE 4 128 #define OPT_IGNORE_FAILED_READ 5 129 #define OPT_REMOVE_FILES 6 130 #define OPT_NULL 7 131 #define OPT_TOTALS 8 132 #define OPT_VERSION 9 133 #define OPT_EXCLUDE 10 134 #define OPT_BLOCK_COMPRESS 11 135 #define OPT_NORECURSE 12 136 #define OPT_FORCE_LOCAL 13 137 #define OPT_INSECURE 14 138 #define OPT_STRICT 15 139 #define OPT_SPARSE 16 140 #define OPT_XZ 17 141 #define OPT_GNU 18 142 #define OPT_TIMESTAMP 19 143 #if !HAVE_NBTOOL_CONFIG_H 144 #define OPT_CHROOT 20 145 #endif 146 147 /* 148 * Format specific routine table - MUST BE IN SORTED ORDER BY NAME 149 * (see pax.h for description of each function) 150 * 151 * name, blksz, hdsz, udev, hlk, blkagn, inhead, id, st_read, 152 * read, end_read, st_write, write, end_write, trail, 153 * subtrail, rd_data, wr_data, options 154 */ 155 156 FSUB fsub[] = { 157 #ifndef NO_CPIO 158 /* 0: OLD BINARY CPIO */ 159 { "bcpio", 5120, sizeof(HD_BCPIO), 1, 0, 0, 1, bcpio_id, cpio_strd, 160 bcpio_rd, bcpio_endrd, cpio_stwr, bcpio_wr, cpio_endwr, NULL, 161 cpio_subtrail, rd_wrfile, wr_rdfile, bad_opt }, 162 163 /* 1: OLD OCTAL CHARACTER CPIO */ 164 { "cpio", 5120, sizeof(HD_CPIO), 1, 0, 0, 1, cpio_id, cpio_strd, 165 cpio_rd, cpio_endrd, cpio_stwr, cpio_wr, cpio_endwr, NULL, 166 cpio_subtrail, rd_wrfile, wr_rdfile, bad_opt }, 167 168 /* 2: SVR4 HEX CPIO */ 169 { "sv4cpio", 5120, sizeof(HD_VCPIO), 1, 0, 0, 1, vcpio_id, cpio_strd, 170 vcpio_rd, vcpio_endrd, cpio_stwr, vcpio_wr, cpio_endwr, NULL, 171 cpio_subtrail, rd_wrfile, wr_rdfile, bad_opt }, 172 173 /* 3: SVR4 HEX CPIO WITH CRC */ 174 { "sv4crc", 5120, sizeof(HD_VCPIO), 1, 0, 0, 1, crc_id, crc_strd, 175 vcpio_rd, vcpio_endrd, crc_stwr, vcpio_wr, cpio_endwr, NULL, 176 cpio_subtrail, rd_wrfile, wr_rdfile, bad_opt }, 177 #endif 178 /* 4: OLD TAR */ 179 { "tar", 10240, BLKMULT, 0, 1, BLKMULT, 0, tar_id, no_op, 180 tar_rd, tar_endrd, no_op, tar_wr, tar_endwr, tar_trail, 181 NULL, rd_wrfile, wr_rdfile, tar_opt }, 182 183 /* 5: POSIX USTAR */ 184 { "ustar", 10240, BLKMULT, 0, 1, BLKMULT, 0, ustar_id, ustar_strd, 185 ustar_rd, tar_endrd, ustar_stwr, ustar_wr, tar_endwr, tar_trail, 186 NULL, rd_wrfile, wr_rdfile, bad_opt } 187 }; 188 #ifndef NO_CPIO 189 #define F_BCPIO 0 /* old binary cpio format */ 190 #define F_CPIO 1 /* old octal character cpio format */ 191 #define F_SV4CPIO 2 /* SVR4 hex cpio format */ 192 #define F_SV4CRC 3 /* SVR4 hex with crc cpio format */ 193 #define F_TAR 4 /* old V7 UNIX tar format */ 194 #define F_USTAR 5 /* ustar format */ 195 #else 196 #define F_TAR 0 /* old V7 UNIX tar format */ 197 #define F_USTAR 1 /* ustar format */ 198 #endif 199 #define DEFLT F_USTAR /* default write format from list above */ 200 201 /* 202 * ford is the archive search order used by get_arc() to determine what kind 203 * of archive we are dealing with. This helps to properly id archive formats 204 * some formats may be subsets of others.... 205 */ 206 int ford[] = {F_USTAR, F_TAR, 207 #ifndef NO_CPIO 208 F_SV4CRC, F_SV4CPIO, F_CPIO, F_BCPIO, 209 #endif 210 -1}; 211 212 /* 213 * filename record separator 214 */ 215 int sep = '\n'; 216 217 /* 218 * Do we have -C anywhere? 219 */ 220 int havechd = 0; 221 222 /* 223 * options() 224 * figure out if we are pax, tar or cpio. Call the appropriate options 225 * parser 226 */ 227 228 void 229 options(int argc, char **argv) 230 { 231 232 /* 233 * Are we acting like pax, tar or cpio (based on argv[0]) 234 */ 235 if ((argv0 = strrchr(argv[0], '/')) != NULL) 236 argv0++; 237 else 238 argv0 = argv[0]; 239 240 if (strstr(argv0, NM_TAR)) { 241 argv0 = NM_TAR; 242 tar_options(argc, argv); 243 #ifndef NO_CPIO 244 } else if (strstr(argv0, NM_CPIO)) { 245 argv0 = NM_CPIO; 246 cpio_options(argc, argv); 247 #endif 248 } else { 249 argv0 = NM_PAX; 250 pax_options(argc, argv); 251 } 252 } 253 254 struct option pax_longopts[] = { 255 { "insecure", no_argument, 0, 256 OPT_INSECURE }, 257 { "force-local", no_argument, 0, 258 OPT_FORCE_LOCAL }, 259 { "use-compress-program", required_argument, 0, 260 OPT_USE_COMPRESS_PROGRAM }, 261 { "xz", no_argument, 0, 262 OPT_XZ }, 263 { "gnu", no_argument, 0, 264 OPT_GNU }, 265 { "timestamp", required_argument, 0, 266 OPT_TIMESTAMP }, 267 { 0, 0, 0, 268 0 }, 269 }; 270 271 /* 272 * pax_options() 273 * look at the user specified flags. set globals as required and check if 274 * the user specified a legal set of flags. If not, complain and exit 275 */ 276 277 static void 278 pax_options(int argc, char **argv) 279 { 280 int c; 281 size_t i; 282 u_int64_t flg = 0; 283 u_int64_t bflg = 0; 284 char *pt; 285 FSUB tmp; 286 287 /* 288 * process option flags 289 */ 290 while ((c = getopt_long(argc, argv, 291 "0ab:cdf:ijklno:p:rs:tuvwx:zAB:DE:G:HLMN:OPT:U:VXYZ", 292 pax_longopts, NULL)) != -1) { 293 switch (c) { 294 case '0': 295 sep = '\0'; 296 break; 297 case 'a': 298 /* 299 * append 300 */ 301 flg |= AF; 302 break; 303 case 'b': 304 /* 305 * specify blocksize 306 */ 307 flg |= BF; 308 if ((wrblksz = (int)str_offt(optarg)) <= 0) { 309 tty_warn(1, "Invalid block size %s", optarg); 310 pax_usage(); 311 } 312 break; 313 case 'c': 314 /* 315 * inverse match on patterns 316 */ 317 cflag = 1; 318 flg |= CF; 319 break; 320 case 'd': 321 /* 322 * match only dir on extract, not the subtree at dir 323 */ 324 dflag = 1; 325 flg |= DF; 326 break; 327 case 'f': 328 /* 329 * filename where the archive is stored 330 */ 331 arcname = optarg; 332 flg |= FF; 333 break; 334 case 'i': 335 /* 336 * interactive file rename 337 */ 338 iflag = 1; 339 flg |= IF; 340 break; 341 case 'j': 342 /* 343 * pass through bzip2 344 */ 345 gzip_program = BZIP2_CMD; 346 break; 347 case 'k': 348 /* 349 * do not clobber files that exist 350 */ 351 kflag = 1; 352 flg |= KF; 353 break; 354 case 'l': 355 /* 356 * try to link src to dest with copy (-rw) 357 */ 358 lflag = 1; 359 flg |= LF; 360 break; 361 case 'n': 362 /* 363 * select first match for a pattern only 364 */ 365 nflag = 1; 366 flg |= NF; 367 break; 368 case 'o': 369 /* 370 * pass format specific options 371 */ 372 flg |= OF; 373 if (opt_add(optarg) < 0) 374 pax_usage(); 375 break; 376 case 'p': 377 /* 378 * specify file characteristic options 379 */ 380 for (pt = optarg; *pt != '\0'; ++pt) { 381 switch(*pt) { 382 case 'a': 383 /* 384 * do not preserve access time 385 */ 386 patime = 0; 387 break; 388 case 'e': 389 /* 390 * preserve user id, group id, file 391 * mode, access/modification times 392 * and file flags. 393 */ 394 pids = 1; 395 pmode = 1; 396 patime = 1; 397 pmtime = 1; 398 pfflags = 1; 399 break; 400 #if 0 401 case 'f': 402 /* 403 * do not preserve file flags 404 */ 405 pfflags = 0; 406 break; 407 #endif 408 case 'm': 409 /* 410 * do not preserve modification time 411 */ 412 pmtime = 0; 413 break; 414 case 'o': 415 /* 416 * preserve uid/gid 417 */ 418 pids = 1; 419 break; 420 case 'p': 421 /* 422 * preserve file mode bits 423 */ 424 pmode = 1; 425 break; 426 default: 427 tty_warn(1, "Invalid -p string: %c", 428 *pt); 429 pax_usage(); 430 break; 431 } 432 } 433 flg |= PF; 434 break; 435 case 'r': 436 /* 437 * read the archive 438 */ 439 flg |= RF; 440 break; 441 case 's': 442 /* 443 * file name substitution name pattern 444 */ 445 if (rep_add(optarg) < 0) { 446 pax_usage(); 447 break; 448 } 449 flg |= SF; 450 break; 451 case 't': 452 /* 453 * preserve access time on filesystem nodes we read 454 */ 455 tflag = 1; 456 flg |= TF; 457 break; 458 case 'u': 459 /* 460 * ignore those older files 461 */ 462 uflag = 1; 463 flg |= UF; 464 break; 465 case 'v': 466 /* 467 * verbose operation mode 468 */ 469 vflag = 1; 470 flg |= VF; 471 break; 472 case 'w': 473 /* 474 * write an archive 475 */ 476 flg |= WF; 477 break; 478 case 'x': 479 /* 480 * specify an archive format on write 481 */ 482 tmp.name = optarg; 483 frmt = (FSUB *)bsearch((void *)&tmp, (void *)fsub, 484 sizeof(fsub)/sizeof(FSUB), sizeof(FSUB), c_frmt); 485 if (frmt != NULL) { 486 flg |= XF; 487 break; 488 } 489 tty_warn(1, "Unknown -x format: %s", optarg); 490 (void)fputs("pax: Known -x formats are:", stderr); 491 for (i = 0; i < (sizeof(fsub)/sizeof(FSUB)); ++i) 492 (void)fprintf(stderr, " %s", fsub[i].name); 493 (void)fputs("\n\n", stderr); 494 pax_usage(); 495 break; 496 case 'z': 497 /* 498 * use gzip. Non standard option. 499 */ 500 gzip_program = GZIP_CMD; 501 break; 502 case 'A': 503 Aflag = 1; 504 flg |= CAF; 505 break; 506 case 'B': 507 /* 508 * non-standard option on number of bytes written on a 509 * single archive volume. 510 */ 511 if ((wrlimit = str_offt(optarg)) <= 0) { 512 tty_warn(1, "Invalid write limit %s", optarg); 513 pax_usage(); 514 } 515 if (wrlimit % BLKMULT) { 516 tty_warn(1, 517 "Write limit is not a %d byte multiple", 518 BLKMULT); 519 pax_usage(); 520 } 521 flg |= CBF; 522 break; 523 case 'D': 524 /* 525 * On extraction check file inode change time before the 526 * modification of the file name. Non standard option. 527 */ 528 Dflag = 1; 529 flg |= CDF; 530 break; 531 case 'E': 532 /* 533 * non-standard limit on read faults 534 * 0 indicates stop after first error, values 535 * indicate a limit, "none" try forever 536 */ 537 flg |= CEF; 538 if (strcmp(none, optarg) == 0) 539 maxflt = -1; 540 else if ((maxflt = atoi(optarg)) < 0) { 541 tty_warn(1, 542 "Error count value must be positive"); 543 pax_usage(); 544 } 545 break; 546 case 'G': 547 /* 548 * non-standard option for selecting files within an 549 * archive by group (gid or name) 550 */ 551 if (grp_add(optarg) < 0) { 552 pax_usage(); 553 break; 554 } 555 flg |= CGF; 556 break; 557 case 'H': 558 /* 559 * follow command line symlinks only 560 */ 561 Hflag = 1; 562 flg |= CHF; 563 break; 564 case 'L': 565 /* 566 * follow symlinks 567 */ 568 Lflag = 1; 569 flg |= CLF; 570 break; 571 #ifdef SMALL 572 case 'M': 573 case 'N': 574 tty_warn(1, "Support for -%c is not compiled in", c); 575 exit(1); 576 #else /* !SMALL */ 577 case 'M': 578 /* 579 * Treat list of filenames on stdin as an 580 * mtree(8) specfile. Non standard option. 581 */ 582 Mflag = 1; 583 flg |= CMF; 584 break; 585 case 'N': 586 /* 587 * Use alternative directory for user db lookups. 588 */ 589 if (!setup_getid(optarg)) { 590 tty_warn(1, 591 "Unable to use user and group databases in `%s'", 592 optarg); 593 pax_usage(); 594 } 595 break; 596 #endif /* !SMALL */ 597 case 'O': 598 /* 599 * Force one volume. Non standard option. 600 */ 601 force_one_volume = 1; 602 break; 603 case 'P': 604 /* 605 * do NOT follow symlinks (default) 606 */ 607 Lflag = 0; 608 flg |= CPF; 609 break; 610 case 'T': 611 /* 612 * non-standard option for selecting files within an 613 * archive by modification time range (lower,upper) 614 */ 615 if (trng_add(optarg) < 0) { 616 pax_usage(); 617 break; 618 } 619 flg |= CTF; 620 break; 621 case 'U': 622 /* 623 * non-standard option for selecting files within an 624 * archive by user (uid or name) 625 */ 626 if (usr_add(optarg) < 0) { 627 pax_usage(); 628 break; 629 } 630 flg |= CUF; 631 break; 632 case 'V': 633 /* 634 * somewhat verbose operation mode (no listing) 635 */ 636 Vflag = 1; 637 flg |= VSF; 638 break; 639 case 'X': 640 /* 641 * do not pass over mount points in the file system 642 */ 643 Xflag = 1; 644 flg |= CXF; 645 break; 646 case 'Y': 647 /* 648 * On extraction check file inode change time after the 649 * modification of the file name. Non standard option. 650 */ 651 Yflag = 1; 652 flg |= CYF; 653 break; 654 case 'Z': 655 /* 656 * On extraction check modification time after the 657 * modification of the file name. Non standard option. 658 */ 659 Zflag = 1; 660 flg |= CZF; 661 break; 662 case OPT_INSECURE: 663 secure = 0; 664 break; 665 case OPT_FORCE_LOCAL: 666 forcelocal = 1; 667 break; 668 case OPT_USE_COMPRESS_PROGRAM: 669 gzip_program = optarg; 670 break; 671 case OPT_XZ: 672 gzip_program = XZ_CMD; 673 break; 674 case OPT_GNU: 675 is_gnutar = 1; 676 break; 677 #ifndef SMALL 678 case OPT_TIMESTAMP: 679 if (set_tstamp(optarg, &tst) == -1) { 680 tty_warn(1, "Invalid timestamp `%s'", optarg); 681 tar_usage(); 682 } 683 break; 684 #endif 685 case '?': 686 default: 687 pax_usage(); 688 break; 689 } 690 } 691 692 /* 693 * figure out the operation mode of pax read,write,extract,copy,append 694 * or list. check that we have not been given a bogus set of flags 695 * for the operation mode. 696 */ 697 if (ISLIST(flg)) { 698 act = LIST; 699 listf = stdout; 700 bflg = flg & BDLIST; 701 } else if (ISEXTRACT(flg)) { 702 act = EXTRACT; 703 bflg = flg & BDEXTR; 704 } else if (ISARCHIVE(flg)) { 705 act = ARCHIVE; 706 bflg = flg & BDARCH; 707 } else if (ISAPPND(flg)) { 708 act = APPND; 709 bflg = flg & BDARCH; 710 } else if (ISCOPY(flg)) { 711 act = COPY; 712 bflg = flg & BDCOPY; 713 } else 714 pax_usage(); 715 if (bflg) { 716 printflg(flg); 717 pax_usage(); 718 } 719 720 /* 721 * if we are writing (ARCHIVE) we use the default format if the user 722 * did not specify a format. when we write during an APPEND, we will 723 * adopt the format of the existing archive if none was supplied. 724 */ 725 if (!(flg & XF) && (act == ARCHIVE)) 726 frmt = &(fsub[DEFLT]); 727 728 /* 729 * process the args as they are interpreted by the operation mode 730 */ 731 switch (act) { 732 case LIST: 733 case EXTRACT: 734 for (; optind < argc; optind++) 735 if (pat_add(argv[optind], NULL, 0) < 0) 736 pax_usage(); 737 break; 738 case COPY: 739 if (optind >= argc) { 740 tty_warn(0, "Destination directory was not supplied"); 741 pax_usage(); 742 } 743 --argc; 744 dirptr = argv[argc]; 745 if (mkpath(dirptr) < 0) 746 exit(1); 747 /* FALLTHROUGH */ 748 case ARCHIVE: 749 case APPND: 750 for (; optind < argc; optind++) 751 if (ftree_add(argv[optind], 0) < 0) 752 pax_usage(); 753 /* 754 * no read errors allowed on updates/append operation! 755 */ 756 maxflt = 0; 757 break; 758 } 759 } 760 761 762 /* 763 * tar_options() 764 * look at the user specified flags. set globals as required and check if 765 * the user specified a legal set of flags. If not, complain and exit 766 */ 767 768 struct option tar_longopts[] = { 769 { "block-size", required_argument, 0, 'b' }, 770 { "bunzip2", no_argument, 0, 'j' }, 771 { "bzip2", no_argument, 0, 'j' }, 772 { "create", no_argument, 0, 'c' }, /* F */ 773 /* -e -- no corresponding long option */ 774 { "file", required_argument, 0, 'f' }, 775 { "dereference", no_argument, 0, 'h' }, 776 { "keep-old-files", no_argument, 0, 'k' }, 777 { "one-file-system", no_argument, 0, 'l' }, 778 { "modification-time", no_argument, 0, 'm' }, 779 { "old-archive", no_argument, 0, 'o' }, 780 { "portability", no_argument, 0, 'o' }, 781 { "same-permissions", no_argument, 0, 'p' }, 782 { "preserve-permissions", no_argument, 0, 'p' }, 783 { "preserve", no_argument, 0, 'p' }, 784 { "fast-read", no_argument, 0, 'q' }, 785 { "append", no_argument, 0, 'r' }, /* F */ 786 { "update", no_argument, 0, 'u' }, /* F */ 787 { "list", no_argument, 0, 't' }, /* F */ 788 { "verbose", no_argument, 0, 'v' }, 789 { "interactive", no_argument, 0, 'w' }, 790 { "confirmation", no_argument, 0, 'w' }, 791 { "extract", no_argument, 0, 'x' }, /* F */ 792 { "get", no_argument, 0, 'x' }, /* F */ 793 { "gzip", no_argument, 0, 'z' }, 794 { "gunzip", no_argument, 0, 'z' }, 795 { "read-full-blocks", no_argument, 0, 'B' }, 796 { "directory", required_argument, 0, 'C' }, 797 { "xz", no_argument, 0, 'J' }, 798 { "to-stdout", no_argument, 0, 'O' }, 799 { "absolute-paths", no_argument, 0, 'P' }, 800 { "sparse", no_argument, 0, 'S' }, 801 { "files-from", required_argument, 0, 'T' }, 802 { "summary", no_argument, 0, 'V' }, 803 { "stats", no_argument, 0, 'V' }, 804 { "exclude-from", required_argument, 0, 'X' }, 805 { "compress", no_argument, 0, 'Z' }, 806 { "uncompress", no_argument, 0, 'Z' }, 807 { "strict", no_argument, 0, 808 OPT_STRICT }, 809 { "atime-preserve", no_argument, 0, 810 OPT_ATIME_PRESERVE }, 811 { "unlink", no_argument, 0, 812 OPT_UNLINK }, 813 { "use-compress-program", required_argument, 0, 814 OPT_USE_COMPRESS_PROGRAM }, 815 { "force-local", no_argument, 0, 816 OPT_FORCE_LOCAL }, 817 { "insecure", no_argument, 0, 818 OPT_INSECURE }, 819 { "exclude", required_argument, 0, 820 OPT_EXCLUDE }, 821 { "no-recursion", no_argument, 0, 822 OPT_NORECURSE }, 823 #if !HAVE_NBTOOL_CONFIG_H 824 { "chroot", no_argument, 0, 825 OPT_CHROOT }, 826 #endif 827 { "timestamp", required_argument, 0, 828 OPT_TIMESTAMP }, 829 #if 0 /* Not implemented */ 830 { "catenate", no_argument, 0, 'A' }, /* F */ 831 { "concatenate", no_argument, 0, 'A' }, /* F */ 832 { "diff", no_argument, 0, 'd' }, /* F */ 833 { "compare", no_argument, 0, 'd' }, /* F */ 834 { "checkpoint", no_argument, 0, 835 OPT_CHECKPOINT }, 836 { "help", no_argument, 0, 837 OPT_HELP }, 838 { "info-script", required_argument, 0, 'F' }, 839 { "new-volume-script", required_argument, 0, 'F' }, 840 { "incremental", no_argument, 0, 'G' }, 841 { "listed-incremental", required_argument, 0, 'g' }, 842 { "ignore-zeros", no_argument, 0, 'i' }, 843 { "ignore-failed-read", no_argument, 0, 844 OPT_IGNORE_FAILED_READ }, 845 { "starting-file", no_argument, 0, 'K' }, 846 { "tape-length", required_argument, 0, 'L' }, 847 { "multi-volume", no_argument, 0, 'M' }, 848 { "after-date", required_argument, 0, 'N' }, 849 { "newer", required_argument, 0, 'N' }, 850 { "record-number", no_argument, 0, 'R' }, 851 { "remove-files", no_argument, 0, 852 OPT_REMOVE_FILES }, 853 { "same-order", no_argument, 0, 's' }, 854 { "preserve-order", no_argument, 0, 's' }, 855 { "null", no_argument, 0, 856 OPT_NULL }, 857 { "totals", no_argument, 0, 858 OPT_TOTALS }, 859 { "volume-name", required_argument, 0, 'V' }, /* XXX */ 860 { "label", required_argument, 0, 'V' }, /* XXX */ 861 { "version", no_argument, 0, 862 OPT_VERSION }, 863 { "verify", no_argument, 0, 'W' }, 864 { "block-compress", no_argument, 0, 865 OPT_BLOCK_COMPRESS }, 866 #endif 867 { 0, 0, 0, 0 }, 868 }; 869 870 static void 871 tar_set_action(int op) 872 { 873 if (act != ERROR && act != op) 874 tar_usage(); 875 act = op; 876 } 877 878 static void 879 tar_options(int argc, char **argv) 880 { 881 int c; 882 int fstdin = 0; 883 int Oflag = 0; 884 int nincfiles = 0; 885 int incfiles_max = 0; 886 struct incfile { 887 char *file; 888 char *dir; 889 }; 890 struct incfile *incfiles = NULL; 891 892 /* 893 * Set default values. 894 */ 895 rmleadslash = 1; 896 is_gnutar = 1; 897 898 /* 899 * process option flags 900 */ 901 while ((c = getoldopt(argc, argv, 902 "+b:cef:hjklmopqrs:tuvwxzBC:HI:JOPST:X:Z014578", 903 tar_longopts, NULL)) 904 != -1) { 905 switch(c) { 906 case 'b': 907 /* 908 * specify blocksize in 512-byte blocks 909 */ 910 if ((wrblksz = (int)str_offt(optarg)) <= 0) { 911 tty_warn(1, "Invalid block size %s", optarg); 912 tar_usage(); 913 } 914 wrblksz *= 512; /* XXX - check for int oflow */ 915 break; 916 case 'c': 917 /* 918 * create an archive 919 */ 920 tar_set_action(ARCHIVE); 921 break; 922 case 'e': 923 /* 924 * stop after first error 925 */ 926 maxflt = 0; 927 break; 928 case 'f': 929 /* 930 * filename where the archive is stored 931 */ 932 if ((optarg[0] == '-') && (optarg[1]== '\0')) { 933 /* 934 * treat a - as stdin 935 */ 936 fstdin = 1; 937 arcname = NULL; 938 break; 939 } 940 fstdin = 0; 941 arcname = optarg; 942 break; 943 case 'h': 944 /* 945 * follow symlinks 946 */ 947 Lflag = 1; 948 break; 949 case 'j': 950 /* 951 * pass through bzip2. not a standard option 952 */ 953 gzip_program = BZIP2_CMD; 954 break; 955 case 'k': 956 /* 957 * do not clobber files that exist 958 */ 959 kflag = 1; 960 break; 961 case 'l': 962 /* 963 * do not pass over mount points in the file system 964 */ 965 Xflag = 1; 966 break; 967 case 'm': 968 /* 969 * do not preserve modification time 970 */ 971 pmtime = 0; 972 break; 973 case 'o': 974 /* 975 * This option does several things based on whether 976 * this is a create or extract operation. 977 */ 978 if (act == ARCHIVE) { 979 /* GNU tar: write V7 format archives. */ 980 Oflag = 1; 981 /* 4.2BSD: don't add directory entries. */ 982 if (opt_add("write_opt=nodir") < 0) 983 tar_usage(); 984 985 } else { 986 /* SUS: don't preserve owner/group. */ 987 pids = 0; 988 nopids = 1; 989 } 990 break; 991 case 'p': 992 /* 993 * preserve user id, group id, file 994 * mode, access/modification times 995 */ 996 if (!nopids) 997 pids = 1; 998 pmode = 1; 999 patime = 1; 1000 pmtime = 1; 1001 break; 1002 case 'q': 1003 /* 1004 * select first match for a pattern only 1005 */ 1006 nflag = 1; 1007 break; 1008 case 'r': 1009 case 'u': 1010 /* 1011 * append to the archive 1012 */ 1013 tar_set_action(APPND); 1014 break; 1015 case 's': 1016 /* 1017 * file name substitution name pattern 1018 */ 1019 if (rep_add(optarg) < 0) { 1020 tar_usage(); 1021 break; 1022 } 1023 break; 1024 case 't': 1025 /* 1026 * list contents of the tape 1027 */ 1028 tar_set_action(LIST); 1029 break; 1030 case 'v': 1031 /* 1032 * verbose operation mode 1033 */ 1034 vflag = 1; 1035 break; 1036 case 'w': 1037 /* 1038 * interactive file rename 1039 */ 1040 iflag = 1; 1041 break; 1042 case 'x': 1043 /* 1044 * extract an archive, preserving mode, 1045 * and mtime if possible. 1046 */ 1047 tar_set_action(EXTRACT); 1048 pmtime = 1; 1049 break; 1050 case 'z': 1051 /* 1052 * use gzip. Non standard option. 1053 */ 1054 gzip_program = GZIP_CMD; 1055 break; 1056 case 'B': 1057 /* 1058 * Nothing to do here, this is pax default 1059 */ 1060 break; 1061 case 'C': 1062 havechd++; 1063 chdname = optarg; 1064 break; 1065 case 'H': 1066 /* 1067 * follow command line symlinks only 1068 */ 1069 Hflag = 1; 1070 break; 1071 case 'I': 1072 case 'T': 1073 if (++nincfiles > incfiles_max) { 1074 incfiles_max = nincfiles + 3; 1075 incfiles = realloc(incfiles, 1076 sizeof(*incfiles) * incfiles_max); 1077 if (incfiles == NULL) { 1078 tty_warn(0, "Unable to allocate space " 1079 "for option list"); 1080 exit(1); 1081 } 1082 } 1083 incfiles[nincfiles - 1].file = optarg; 1084 incfiles[nincfiles - 1].dir = chdname; 1085 break; 1086 case 'J': 1087 gzip_program = XZ_CMD; 1088 break; 1089 case 'O': 1090 Oflag = 1; 1091 break; 1092 case 'P': 1093 /* 1094 * do not remove leading '/' from pathnames 1095 */ 1096 rmleadslash = 0; 1097 Aflag = 1; 1098 break; 1099 case 'S': 1100 /* do nothing; we already generate sparse files */ 1101 break; 1102 case 'V': 1103 /* 1104 * semi-verbose operation mode (no listing) 1105 */ 1106 Vflag = 1; 1107 break; 1108 case 'X': 1109 /* 1110 * GNU tar compat: exclude the files listed in optarg 1111 */ 1112 if (tar_gnutar_X_compat(optarg) != 0) 1113 tar_usage(); 1114 break; 1115 case 'Z': 1116 /* 1117 * use compress. 1118 */ 1119 gzip_program = COMPRESS_CMD; 1120 break; 1121 case '0': 1122 arcname = DEV_0; 1123 break; 1124 case '1': 1125 arcname = DEV_1; 1126 break; 1127 case '4': 1128 arcname = DEV_4; 1129 break; 1130 case '5': 1131 arcname = DEV_5; 1132 break; 1133 case '7': 1134 arcname = DEV_7; 1135 break; 1136 case '8': 1137 arcname = DEV_8; 1138 break; 1139 case OPT_ATIME_PRESERVE: 1140 patime = 1; 1141 break; 1142 case OPT_UNLINK: 1143 /* Just ignore -- we always unlink first. */ 1144 break; 1145 case OPT_USE_COMPRESS_PROGRAM: 1146 gzip_program = optarg; 1147 break; 1148 case OPT_FORCE_LOCAL: 1149 forcelocal = 1; 1150 break; 1151 case OPT_INSECURE: 1152 secure = 0; 1153 break; 1154 case OPT_STRICT: 1155 /* disable gnu extensions */ 1156 is_gnutar = 0; 1157 break; 1158 case OPT_EXCLUDE: 1159 if (tar_gnutar_minus_minus_exclude(optarg) != 0) 1160 tar_usage(); 1161 break; 1162 case OPT_NORECURSE: 1163 dflag = 1; 1164 break; 1165 #if !HAVE_NBTOOL_CONFIG_H 1166 case OPT_CHROOT: 1167 do_chroot = 1; 1168 break; 1169 #endif 1170 #ifndef SMALL 1171 case OPT_TIMESTAMP: 1172 if (set_tstamp(optarg, &tst) == -1) { 1173 tty_warn(1, "Invalid timestamp `%s'", optarg); 1174 tar_usage(); 1175 } 1176 break; 1177 #endif 1178 default: 1179 tar_usage(); 1180 break; 1181 } 1182 } 1183 argc -= optind; 1184 argv += optind; 1185 1186 /* Tar requires an action. */ 1187 if (act == ERROR) 1188 tar_usage(); 1189 1190 /* Traditional tar behaviour (pax uses stderr unless in list mode) */ 1191 if (fstdin == 1 && act == ARCHIVE) 1192 listf = stderr; 1193 else 1194 listf = stdout; 1195 1196 /* Traditional tar behaviour (pax wants to read file list from stdin) */ 1197 if ((act == ARCHIVE || act == APPND) && argc == 0 && nincfiles == 0) 1198 exit(0); 1199 /* 1200 * if we are writing (ARCHIVE) specify tar, otherwise run like pax 1201 * (unless -o specified) 1202 */ 1203 if (act == ARCHIVE || act == APPND) 1204 frmt = &(fsub[Oflag ? F_TAR : F_USTAR]); 1205 else if (Oflag) { 1206 if (act == EXTRACT) 1207 to_stdout = 1; 1208 else { 1209 tty_warn(1, "The -O/-o options are only valid when " 1210 "writing or extracting an archive"); 1211 tar_usage(); 1212 } 1213 } 1214 1215 /* 1216 * process the args as they are interpreted by the operation mode 1217 */ 1218 switch (act) { 1219 case LIST: 1220 case EXTRACT: 1221 default: 1222 { 1223 int sawpat = 0; 1224 int dirisnext = 0; 1225 char *file, *dir = NULL; 1226 int mustfreedir = 0; 1227 1228 while (nincfiles || *argv != NULL) { 1229 /* 1230 * If we queued up any include files, 1231 * pull them in now. Otherwise, check 1232 * for -I and -C positional flags. 1233 * Anything else must be a file to 1234 * extract. 1235 */ 1236 if (nincfiles) { 1237 file = incfiles->file; 1238 dir = incfiles->dir; 1239 mustfreedir = 0; 1240 incfiles++; 1241 nincfiles--; 1242 } else if (strcmp(*argv, "-I") == 0) { 1243 if (*++argv == NULL) 1244 break; 1245 file = *argv++; 1246 dir = chdname; 1247 mustfreedir = 0; 1248 } else { 1249 file = NULL; 1250 dir = NULL; 1251 mustfreedir = 0; 1252 } 1253 if (file != NULL) { 1254 FILE *fp; 1255 char *str; 1256 1257 if (strcmp(file, "-") == 0) 1258 fp = stdin; 1259 else if ((fp = fopen(file, "r")) == NULL) { 1260 tty_warn(1, "Unable to open file '%s' for read", file); 1261 tar_usage(); 1262 } 1263 while ((str = get_line(fp)) != NULL) { 1264 if (dirisnext) { 1265 if (dir && mustfreedir) 1266 free(dir); 1267 dir = str; 1268 mustfreedir = 1; 1269 dirisnext = 0; 1270 continue; 1271 } 1272 if (strcmp(str, "-C") == 0) { 1273 havechd++; 1274 dirisnext = 1; 1275 free(str); 1276 continue; 1277 } 1278 if (strncmp(str, "-C ", 3) == 0) { 1279 havechd++; 1280 if (dir && mustfreedir) 1281 free(dir); 1282 dir = strdup(str + 3); 1283 mustfreedir = 1; 1284 free(str); 1285 continue; 1286 } 1287 if (pat_add(str, dir, NOGLOB_MTCH) < 0) 1288 tar_usage(); 1289 sawpat = 1; 1290 } 1291 /* Bomb if given -C w/out a dir. */ 1292 if (dirisnext) 1293 tar_usage(); 1294 if (dir && mustfreedir) 1295 free(dir); 1296 if (strcmp(file, "-") != 0) 1297 fclose(fp); 1298 if (get_line_error) { 1299 tty_warn(1, "Problem with file '%s'", file); 1300 tar_usage(); 1301 } 1302 } else if (strcmp(*argv, "-C") == 0) { 1303 if (*++argv == NULL) 1304 break; 1305 chdname = *argv++; 1306 havechd++; 1307 } else if (pat_add(*argv++, chdname, 0) < 0) 1308 tar_usage(); 1309 else 1310 sawpat = 1; 1311 } 1312 /* 1313 * if patterns were added, we are doing chdir() 1314 * on a file-by-file basis, else, just one 1315 * global chdir (if any) after opening input. 1316 */ 1317 if (sawpat > 0) 1318 chdname = NULL; 1319 } 1320 break; 1321 case ARCHIVE: 1322 case APPND: 1323 if (chdname != NULL) { /* initial chdir() */ 1324 if (ftree_add(chdname, 1) < 0) 1325 tar_usage(); 1326 } 1327 1328 while (nincfiles || *argv != NULL) { 1329 char *file, *dir; 1330 1331 /* 1332 * If we queued up any include files, pull them in 1333 * now. Otherwise, check for -I and -C positional 1334 * flags. Anything else must be a file to include 1335 * in the archive. 1336 */ 1337 if (nincfiles) { 1338 file = incfiles->file; 1339 dir = incfiles->dir; 1340 incfiles++; 1341 nincfiles--; 1342 } else if (strcmp(*argv, "-I") == 0) { 1343 if (*++argv == NULL) 1344 break; 1345 file = *argv++; 1346 dir = NULL; 1347 } else { 1348 file = NULL; 1349 dir = NULL; 1350 } 1351 if (file != NULL) { 1352 FILE *fp; 1353 char *str; 1354 int dirisnext = 0; 1355 1356 /* Set directory if needed */ 1357 if (dir) { 1358 if (ftree_add(dir, 1) < 0) 1359 tar_usage(); 1360 } 1361 1362 if (strcmp(file, "-") == 0) 1363 fp = stdin; 1364 else if ((fp = fopen(file, "r")) == NULL) { 1365 tty_warn(1, "Unable to open file '%s' for read", file); 1366 tar_usage(); 1367 } 1368 while ((str = get_line(fp)) != NULL) { 1369 if (dirisnext) { 1370 if (ftree_add(str, 1) < 0) 1371 tar_usage(); 1372 dirisnext = 0; 1373 continue; 1374 } 1375 if (strcmp(str, "-C") == 0) { 1376 dirisnext = 1; 1377 continue; 1378 } 1379 if (strncmp(str, "-C ", 3) == 0) { 1380 if (ftree_add(str + 3, 1) < 0) 1381 tar_usage(); 1382 continue; 1383 } 1384 if (ftree_add(str, 0) < 0) 1385 tar_usage(); 1386 } 1387 /* Bomb if given -C w/out a dir. */ 1388 if (dirisnext) 1389 tar_usage(); 1390 if (strcmp(file, "-") != 0) 1391 fclose(fp); 1392 if (get_line_error) { 1393 tty_warn(1, "Problem with file '%s'", 1394 file); 1395 tar_usage(); 1396 } 1397 } else if (strcmp(*argv, "-C") == 0) { 1398 if (*++argv == NULL) 1399 break; 1400 if (ftree_add(*argv++, 1) < 0) 1401 tar_usage(); 1402 } else if (ftree_add(*argv++, 0) < 0) 1403 tar_usage(); 1404 } 1405 /* 1406 * no read errors allowed on updates/append operation! 1407 */ 1408 maxflt = 0; 1409 break; 1410 } 1411 if (!fstdin && ((arcname == NULL) || (*arcname == '\0'))) { 1412 arcname = getenv("TAPE"); 1413 if ((arcname == NULL) || (*arcname == '\0')) 1414 arcname = _PATH_DEFTAPE; 1415 } 1416 } 1417 1418 int 1419 mkpath(char *path) 1420 { 1421 char *slash; 1422 int done = 0; 1423 1424 slash = path; 1425 1426 while (!done) { 1427 slash += strspn(slash, "/"); 1428 slash += strcspn(slash, "/"); 1429 1430 done = (*slash == '\0'); 1431 *slash = '\0'; 1432 1433 if (domkdir(path, 0777) == -1) 1434 goto out; 1435 1436 if (!done) 1437 *slash = '/'; 1438 } 1439 1440 return 0; 1441 out: 1442 /* Can't create or or not a directory */ 1443 syswarn(1, errno, "Cannot create directory `%s'", path); 1444 return -1; 1445 } 1446 1447 1448 #ifndef NO_CPIO 1449 struct option cpio_longopts[] = { 1450 { "reset-access-time", no_argument, 0, 'a' }, 1451 { "make-directories", no_argument, 0, 'd' }, 1452 { "nonmatching", no_argument, 0, 'f' }, 1453 { "extract", no_argument, 0, 'i' }, 1454 { "link", no_argument, 0, 'l' }, 1455 { "preserve-modification-time", no_argument, 0, 'm' }, 1456 { "create", no_argument, 0, 'o' }, 1457 { "pass-through", no_argument, 0, 'p' }, 1458 { "rename", no_argument, 0, 'r' }, 1459 { "list", no_argument, 0, 't' }, 1460 { "unconditional", no_argument, 0, 'u' }, 1461 { "verbose", no_argument, 0, 'v' }, 1462 { "append", no_argument, 0, 'A' }, 1463 { "pattern-file", required_argument, 0, 'E' }, 1464 { "file", required_argument, 0, 'F' }, 1465 { "force-local", no_argument, 0, 1466 OPT_FORCE_LOCAL }, 1467 { "format", required_argument, 0, 'H' }, 1468 { "dereference", no_argument, 0, 'L' }, 1469 { "swap-halfwords", no_argument, 0, 'S' }, 1470 { "summary", no_argument, 0, 'V' }, 1471 { "stats", no_argument, 0, 'V' }, 1472 { "insecure", no_argument, 0, 1473 OPT_INSECURE }, 1474 { "sparse", no_argument, 0, 1475 OPT_SPARSE }, 1476 { "xz", no_argument, 0, 1477 OPT_XZ }, 1478 1479 #ifdef notyet 1480 /* Not implemented */ 1481 { "null", no_argument, 0, '0' }, 1482 { "swap", no_argument, 0, 'b' }, 1483 { "numeric-uid-gid", no_argument, 0, 'n' }, 1484 { "swap-bytes", no_argument, 0, 's' }, 1485 { "message", required_argument, 0, 'M' }, 1486 { "owner", required_argument, 0 'R' }, 1487 { "dot", no_argument, 0, 'V' }, /* xxx */ 1488 { "block-size", required_argument, 0, 1489 OPT_BLOCK_SIZE }, 1490 { "no-absolute-pathnames", no_argument, 0, 1491 OPT_NO_ABSOLUTE_PATHNAMES }, 1492 { "no-preserve-owner", no_argument, 0, 1493 OPT_NO_PRESERVE_OWNER }, 1494 { "only-verify-crc", no_argument, 0, 1495 OPT_ONLY_VERIFY_CRC }, 1496 { "rsh-command", required_argument, 0, 1497 OPT_RSH_COMMAND }, 1498 { "version", no_argument, 0, 1499 OPT_VERSION }, 1500 #endif 1501 { 0, 0, 0, 0 }, 1502 }; 1503 1504 static void 1505 cpio_set_action(int op) 1506 { 1507 if ((act == APPND && op == ARCHIVE) || (act == ARCHIVE && op == APPND)) 1508 act = APPND; 1509 else if (act == EXTRACT && op == LIST) 1510 act = op; 1511 else if (act != ERROR && act != op) 1512 cpio_usage(); 1513 else 1514 act = op; 1515 } 1516 1517 /* 1518 * cpio_options() 1519 * look at the user specified flags. set globals as required and check if 1520 * the user specified a legal set of flags. If not, complain and exit 1521 */ 1522 1523 static void 1524 cpio_options(int argc, char **argv) 1525 { 1526 FSUB tmp; 1527 u_int64_t flg = 0; 1528 u_int64_t bflg = 0; 1529 int c; 1530 size_t i; 1531 FILE *fp; 1532 char *str; 1533 1534 uflag = 1; 1535 kflag = 1; 1536 pids = 1; 1537 pmode = 1; 1538 pmtime = 0; 1539 arcname = NULL; 1540 dflag = 1; 1541 nodirs = 1; 1542 /* 1543 * process option flags 1544 */ 1545 while ((c = getoldopt(argc, argv, 1546 "+abcdfiklmoprstuvzABC:E:F:H:I:LM:O:R:SVZ6", 1547 cpio_longopts, NULL)) != -1) { 1548 switch(c) { 1549 case 'a': 1550 /* 1551 * preserve access time on filesystem nodes we read 1552 */ 1553 tflag = 1; 1554 flg |= TF; 1555 break; 1556 #ifdef notyet 1557 case 'b': 1558 /* 1559 * swap bytes and half-words when reading data 1560 */ 1561 break; 1562 #endif 1563 case 'c': 1564 /* 1565 * ASCII cpio header 1566 */ 1567 frmt = &fsub[F_SV4CPIO]; 1568 break; 1569 case 'd': 1570 /* 1571 * create directories as needed 1572 * pax does this by default .. 1573 */ 1574 nodirs = 0; 1575 break; 1576 case 'f': 1577 /* 1578 * inverse match on patterns 1579 */ 1580 cflag = 1; 1581 flg |= CF; 1582 break; 1583 case 'i': 1584 /* 1585 * read the archive 1586 */ 1587 cpio_set_action(EXTRACT); 1588 flg |= RF; 1589 break; 1590 #ifdef notyet 1591 case 'k': 1592 break; 1593 #endif 1594 case 'l': 1595 /* 1596 * try to link src to dest with copy (-rw) 1597 */ 1598 lflag = 1; 1599 flg |= LF; 1600 break; 1601 case 'm': 1602 /* 1603 * preserve mtime 1604 */ 1605 flg |= PF; 1606 pmtime = 1; 1607 break; 1608 case 'o': 1609 /* 1610 * write an archive 1611 */ 1612 cpio_set_action(ARCHIVE); 1613 frmt = &(fsub[F_SV4CRC]); 1614 flg |= WF; 1615 break; 1616 case 'p': 1617 /* 1618 * cpio -p is like pax -rw 1619 */ 1620 cpio_set_action(COPY); 1621 flg |= RF | WF; 1622 break; 1623 case 'r': 1624 /* 1625 * interactive file rename 1626 */ 1627 iflag = 1; 1628 flg |= IF; 1629 break; 1630 #ifdef notyet 1631 case 's': 1632 /* 1633 * swap bytes after reading data 1634 */ 1635 break; 1636 #endif 1637 case 't': 1638 /* 1639 * list contents of archive 1640 */ 1641 cpio_set_action(LIST); 1642 listf = stdout; 1643 flg &= ~RF; 1644 break; 1645 case 'u': 1646 /* 1647 * don't ignore those older files 1648 */ 1649 uflag = 0; 1650 kflag = 0; 1651 flg |= UF; 1652 break; 1653 case 'v': 1654 /* 1655 * verbose operation mode 1656 */ 1657 vflag = 1; 1658 flg |= VF; 1659 break; 1660 case 'z': 1661 /* 1662 * use gzip. Non standard option. 1663 */ 1664 gzip_program = GZIP_CMD; 1665 break; 1666 case 'A': 1667 /* 1668 * append to an archive 1669 */ 1670 cpio_set_action(APPND); 1671 flg |= AF; 1672 break; 1673 case 'B': 1674 /* 1675 * set blocksize to 5120 1676 */ 1677 blksz = 5120; 1678 break; 1679 case 'C': 1680 /* 1681 * specify blocksize 1682 */ 1683 if ((blksz = (int)str_offt(optarg)) <= 0) { 1684 tty_warn(1, "Invalid block size %s", optarg); 1685 cpio_usage(); 1686 } 1687 break; 1688 case 'E': 1689 /* 1690 * file with patterns to extract or list 1691 */ 1692 if ((fp = fopen(optarg, "r")) == NULL) { 1693 tty_warn(1, "Unable to open file '%s' for read", 1694 optarg); 1695 cpio_usage(); 1696 } 1697 while ((str = get_line(fp)) != NULL) { 1698 pat_add(str, NULL, 0); 1699 } 1700 fclose(fp); 1701 if (get_line_error) { 1702 tty_warn(1, "Problem with file '%s'", optarg); 1703 cpio_usage(); 1704 } 1705 break; 1706 case 'H': 1707 /* 1708 * specify an archive format on write 1709 */ 1710 tmp.name = optarg; 1711 frmt = (FSUB *)bsearch((void *)&tmp, (void *)fsub, 1712 sizeof(fsub)/sizeof(FSUB), sizeof(FSUB), c_frmt); 1713 if (frmt != NULL) { 1714 flg |= XF; 1715 break; 1716 } 1717 tty_warn(1, "Unknown -H format: %s", optarg); 1718 (void)fputs("cpio: Known -H formats are:", stderr); 1719 for (i = 0; i < (sizeof(fsub)/sizeof(FSUB)); ++i) 1720 (void)fprintf(stderr, " %s", fsub[i].name); 1721 (void)fputs("\n\n", stderr); 1722 cpio_usage(); 1723 break; 1724 case 'F': 1725 case 'I': 1726 case 'O': 1727 /* 1728 * filename where the archive is stored 1729 */ 1730 if ((optarg[0] == '-') && (optarg[1]== '\0')) { 1731 /* 1732 * treat a - as stdin 1733 */ 1734 arcname = NULL; 1735 break; 1736 } 1737 arcname = optarg; 1738 break; 1739 case 'L': 1740 /* 1741 * follow symlinks 1742 */ 1743 Lflag = 1; 1744 flg |= CLF; 1745 break; 1746 #ifdef notyet 1747 case 'M': 1748 arg = optarg; 1749 break; 1750 case 'R': 1751 arg = optarg; 1752 break; 1753 #endif 1754 case 'S': 1755 /* 1756 * swap halfwords after reading data 1757 */ 1758 cpio_swp_head = 1; 1759 break; 1760 #ifdef notyet 1761 case 'V': /* print a '.' for each file processed */ 1762 break; 1763 #endif 1764 case 'V': 1765 /* 1766 * semi-verbose operation mode (no listing) 1767 */ 1768 Vflag = 1; 1769 flg |= VF; 1770 break; 1771 case 'Z': 1772 /* 1773 * use compress. Non standard option. 1774 */ 1775 gzip_program = COMPRESS_CMD; 1776 break; 1777 case '6': 1778 /* 1779 * process Version 6 cpio format 1780 */ 1781 frmt = &(fsub[F_BCPIO]); 1782 break; 1783 case OPT_FORCE_LOCAL: 1784 forcelocal = 1; 1785 break; 1786 case OPT_INSECURE: 1787 secure = 0; 1788 break; 1789 case OPT_SPARSE: 1790 /* do nothing; we already generate sparse files */ 1791 break; 1792 case OPT_XZ: 1793 gzip_program = XZ_CMD; 1794 break; 1795 default: 1796 cpio_usage(); 1797 break; 1798 } 1799 } 1800 1801 /* 1802 * figure out the operation mode of cpio. check that we have not been 1803 * given a bogus set of flags for the operation mode. 1804 */ 1805 if (ISLIST(flg)) { 1806 act = LIST; 1807 bflg = flg & BDLIST; 1808 } else if (ISEXTRACT(flg)) { 1809 act = EXTRACT; 1810 bflg = flg & BDEXTR; 1811 } else if (ISARCHIVE(flg)) { 1812 act = ARCHIVE; 1813 bflg = flg & BDARCH; 1814 } else if (ISAPPND(flg)) { 1815 act = APPND; 1816 bflg = flg & BDARCH; 1817 } else if (ISCOPY(flg)) { 1818 act = COPY; 1819 bflg = flg & BDCOPY; 1820 } else 1821 cpio_usage(); 1822 if (bflg) { 1823 cpio_usage(); 1824 } 1825 1826 /* 1827 * if we are writing (ARCHIVE) we use the default format if the user 1828 * did not specify a format. when we write during an APPEND, we will 1829 * adopt the format of the existing archive if none was supplied. 1830 */ 1831 if (!(flg & XF) && (act == ARCHIVE)) 1832 frmt = &(fsub[F_BCPIO]); 1833 1834 /* 1835 * process the args as they are interpreted by the operation mode 1836 */ 1837 switch (act) { 1838 case LIST: 1839 case EXTRACT: 1840 for (; optind < argc; optind++) 1841 if (pat_add(argv[optind], NULL, 0) < 0) 1842 cpio_usage(); 1843 break; 1844 case COPY: 1845 if (optind >= argc) { 1846 tty_warn(0, "Destination directory was not supplied"); 1847 cpio_usage(); 1848 } 1849 --argc; 1850 dirptr = argv[argc]; 1851 /* FALLTHROUGH */ 1852 case ARCHIVE: 1853 case APPND: 1854 if (argc != optind) { 1855 for (; optind < argc; optind++) 1856 if (ftree_add(argv[optind], 0) < 0) 1857 cpio_usage(); 1858 break; 1859 } 1860 /* 1861 * no read errors allowed on updates/append operation! 1862 */ 1863 maxflt = 0; 1864 while ((str = get_line(stdin)) != NULL) { 1865 ftree_add(str, 0); 1866 } 1867 if (get_line_error) { 1868 tty_warn(1, "Problem while reading stdin"); 1869 cpio_usage(); 1870 } 1871 break; 1872 default: 1873 cpio_usage(); 1874 break; 1875 } 1876 } 1877 #endif 1878 1879 /* 1880 * printflg() 1881 * print out those invalid flag sets found to the user 1882 */ 1883 1884 static void 1885 printflg(unsigned int flg) 1886 { 1887 int nxt; 1888 1889 (void)fprintf(stderr,"%s: Invalid combination of options:", argv0); 1890 while ((nxt = ffs(flg)) != 0) { 1891 flg &= ~(1 << (nxt - 1)); 1892 (void)fprintf(stderr, " -%c", flgch[nxt - 1]); 1893 } 1894 (void)putc('\n', stderr); 1895 } 1896 1897 /* 1898 * c_frmt() 1899 * comparison routine used by bsearch to find the format specified 1900 * by the user 1901 */ 1902 1903 static int 1904 c_frmt(const void *a, const void *b) 1905 { 1906 return strcmp(((const FSUB *)a)->name, ((const FSUB *)b)->name); 1907 } 1908 1909 /* 1910 * opt_next() 1911 * called by format specific options routines to get each format specific 1912 * flag and value specified with -o 1913 * Return: 1914 * pointer to next OPLIST entry or NULL (end of list). 1915 */ 1916 1917 OPLIST * 1918 opt_next(void) 1919 { 1920 OPLIST *opt; 1921 1922 if ((opt = ophead) != NULL) 1923 ophead = ophead->fow; 1924 return opt; 1925 } 1926 1927 /* 1928 * bad_opt() 1929 * generic routine used to complain about a format specific options 1930 * when the format does not support options. 1931 */ 1932 1933 int 1934 bad_opt(void) 1935 { 1936 OPLIST *opt; 1937 1938 if (ophead == NULL) 1939 return 0; 1940 /* 1941 * print all we were given 1942 */ 1943 tty_warn(1," These format options are not supported for %s", 1944 frmt->name); 1945 while ((opt = opt_next()) != NULL) 1946 (void)fprintf(stderr, "\t%s = %s\n", opt->name, opt->value); 1947 if (strcmp(NM_TAR, argv0) == 0) 1948 tar_usage(); 1949 #ifndef NO_CPIO 1950 else if (strcmp(NM_CPIO, argv0) == 0) 1951 cpio_usage(); 1952 #endif 1953 else 1954 pax_usage(); 1955 return 0; 1956 } 1957 1958 /* 1959 * opt_add() 1960 * breaks the value supplied to -o into a option name and value. options 1961 * are given to -o in the form -o name-value,name=value 1962 * multiple -o may be specified. 1963 * Return: 1964 * 0 if format in name=value format, -1 if -o is passed junk 1965 */ 1966 1967 int 1968 opt_add(const char *str) 1969 { 1970 OPLIST *opt; 1971 char *frpt; 1972 char *pt; 1973 char *endpt; 1974 char *dstr; 1975 1976 if ((str == NULL) || (*str == '\0')) { 1977 tty_warn(0, "Invalid option name"); 1978 return -1; 1979 } 1980 if ((dstr = strdup(str)) == NULL) { 1981 tty_warn(0, "Unable to allocate space for option list"); 1982 return -1; 1983 } 1984 frpt = endpt = dstr; 1985 1986 /* 1987 * break into name and values pieces and stuff each one into a 1988 * OPLIST structure. When we know the format, the format specific 1989 * option function will go through this list 1990 */ 1991 while ((frpt != NULL) && (*frpt != '\0')) { 1992 if ((endpt = strchr(frpt, ',')) != NULL) 1993 *endpt = '\0'; 1994 if ((pt = strchr(frpt, '=')) == NULL) { 1995 tty_warn(0, "Invalid options format"); 1996 free(dstr); 1997 return -1; 1998 } 1999 if ((opt = (OPLIST *)malloc(sizeof(OPLIST))) == NULL) { 2000 tty_warn(0, "Unable to allocate space for option list"); 2001 free(dstr); 2002 return -1; 2003 } 2004 *pt++ = '\0'; 2005 opt->name = frpt; 2006 opt->value = pt; 2007 opt->fow = NULL; 2008 if (endpt != NULL) 2009 frpt = endpt + 1; 2010 else 2011 frpt = NULL; 2012 if (ophead == NULL) { 2013 optail = ophead = opt; 2014 continue; 2015 } 2016 optail->fow = opt; 2017 optail = opt; 2018 } 2019 return 0; 2020 } 2021 2022 /* 2023 * str_offt() 2024 * Convert an expression of the following forms to an off_t > 0. 2025 * 1) A positive decimal number. 2026 * 2) A positive decimal number followed by a b (mult by 512). 2027 * 3) A positive decimal number followed by a k (mult by 1024). 2028 * 4) A positive decimal number followed by a m (mult by 512). 2029 * 5) A positive decimal number followed by a w (mult by sizeof int) 2030 * 6) Two or more positive decimal numbers (with/without k,b or w). 2031 * separated by x (also * for backwards compatibility), specifying 2032 * the product of the indicated values. 2033 * Return: 2034 * 0 for an error, a positive value o.w. 2035 */ 2036 2037 static off_t 2038 str_offt(char *val) 2039 { 2040 char *expr; 2041 off_t num, t; 2042 2043 num = STRTOOFFT(val, &expr, 0); 2044 if ((num == OFFT_MAX) || (num <= 0) || (expr == val)) 2045 return 0; 2046 2047 switch(*expr) { 2048 case 'b': 2049 t = num; 2050 num *= 512; 2051 if (t > num) 2052 return 0; 2053 ++expr; 2054 break; 2055 case 'k': 2056 t = num; 2057 num *= 1024; 2058 if (t > num) 2059 return 0; 2060 ++expr; 2061 break; 2062 case 'm': 2063 t = num; 2064 num *= 1048576; 2065 if (t > num) 2066 return 0; 2067 ++expr; 2068 break; 2069 case 'w': 2070 t = num; 2071 num *= sizeof(int); 2072 if (t > num) 2073 return 0; 2074 ++expr; 2075 break; 2076 } 2077 2078 switch(*expr) { 2079 case '\0': 2080 break; 2081 case '*': 2082 case 'x': 2083 t = num; 2084 num *= str_offt(expr + 1); 2085 if (t > num) 2086 return 0; 2087 break; 2088 default: 2089 return 0; 2090 } 2091 return num; 2092 } 2093 2094 static char * 2095 get_line(FILE *f) 2096 { 2097 char *name, *temp; 2098 size_t len; 2099 2100 name = fgetln(f, &len); 2101 if (!name) { 2102 get_line_error = ferror(f) ? GETLINE_FILE_CORRUPT : 0; 2103 return 0; 2104 } 2105 if (name[len-1] != '\n') 2106 len++; 2107 temp = malloc(len); 2108 if (!temp) { 2109 get_line_error = GETLINE_OUT_OF_MEM; 2110 return 0; 2111 } 2112 memcpy(temp, name, len-1); 2113 temp[len-1] = 0; 2114 return temp; 2115 } 2116 2117 #ifndef SMALL 2118 /* 2119 * set_tstamp() 2120 * Use a specific timestamp for all individual files created in the 2121 * archive 2122 */ 2123 static int 2124 set_tstamp(const char *b, struct stat *st) 2125 { 2126 time_t when; 2127 char *eb; 2128 long long l; 2129 2130 if (stat(b, st) != -1) 2131 return 0; 2132 2133 #ifndef HAVE_NBTOOL_CONFIG_H 2134 errno = 0; 2135 if ((when = parsedate(b, NULL, NULL)) == -1 && errno != 0) 2136 #endif 2137 { 2138 errno = 0; 2139 l = strtoll(b, &eb, 0); 2140 if (b == eb || *eb || errno) 2141 return -1; 2142 when = (time_t)l; 2143 } 2144 2145 st->st_ino = 1; 2146 #if HAVE_STRUCT_STAT_BIRTHTIME 2147 st->st_birthtime = 2148 #endif 2149 st->st_mtime = st->st_ctime = st->st_atime = when; 2150 return 0; 2151 } 2152 #endif 2153 2154 /* 2155 * no_op() 2156 * for those option functions where the archive format has nothing to do. 2157 * Return: 2158 * 0 2159 */ 2160 2161 static int 2162 no_op(void) 2163 { 2164 return 0; 2165 } 2166 2167 /* 2168 * pax_usage() 2169 * print the usage summary to the user 2170 */ 2171 2172 static void 2173 pax_usage(void) 2174 { 2175 fprintf(stderr, 2176 "usage: pax [-0cdjnvzVO] [-E limit] [-f archive] [-N dbdir] [-s replstr] ...\n" 2177 " [-U user] ... [-G group] ... [-T [from_date][,to_date]] ...\n" 2178 " [pattern ...]\n"); 2179 fprintf(stderr, 2180 " pax -r [-cdijknuvzADOVYZ] [-E limit] [-f archive] [-N dbdir]\n" 2181 " [-o options] ... [-p string] ... [-s replstr] ... [-U user] ...\n" 2182 " [-G group] ... [-T [from_date][,to_date]] ... [pattern ...]\n"); 2183 fprintf(stderr, 2184 " pax -w [-dijtuvzAHLMOPVX] [-b blocksize] [[-a] [-f archive]] [-x format]\n" 2185 " [-B bytes] [-N dbdir] [-o options] ... [-s replstr] ...\n" 2186 " [-U user] ... [-G group] ...\n" 2187 " [-T [from_date][,to_date][/[c][m]]] ... [file ...]\n"); 2188 fprintf(stderr, 2189 " pax -r -w [-dijklntuvzADHLMOPVXYZ] [-N dbdir] [-p string] ...\n" 2190 " [-s replstr] ... [-U user] ... [-G group] ...\n" 2191 " [-T [from_date][,to_date][/[c][m]]] ... [file ...] directory\n"); 2192 exit(1); 2193 /* NOTREACHED */ 2194 } 2195 2196 /* 2197 * tar_usage() 2198 * print the usage summary to the user 2199 */ 2200 2201 static void 2202 tar_usage(void) 2203 { 2204 (void)fputs("usage: tar [-]{crtux}[-befhjklmopqvwzHJOPSXZ014578] " 2205 "[archive] [blocksize]\n" 2206 " [-C directory] [-T file] [-s replstr] " 2207 "[file ...]\n", stderr); 2208 exit(1); 2209 /* NOTREACHED */ 2210 } 2211 2212 #ifndef NO_CPIO 2213 /* 2214 * cpio_usage() 2215 * print the usage summary to the user 2216 */ 2217 2218 static void 2219 cpio_usage(void) 2220 { 2221 2222 (void)fputs("usage: cpio -o [-aABcLvzZ] [-C bytes] [-F archive] " 2223 "[-H format] [-O archive]\n" 2224 " < name-list [> archive]\n" 2225 " cpio -i [-bBcdfmrsStuvzZ6] [-C bytes] [-E file] " 2226 "[-F archive] [-H format] \n" 2227 " [-I archive] " 2228 "[pattern ...] [< archive]\n" 2229 " cpio -p [-adlLmuv] destination-directory " 2230 "< name-list\n", stderr); 2231 exit(1); 2232 /* NOTREACHED */ 2233 } 2234 #endif 2235
Indexes created Thu Sep 25 16:09:42 GMT 2025