options.c revision 1.122
1 /* $NetBSD: options.c,v 1.122 2025/05/04 20:06:23 rillig 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 1.122 2025/05/04 20:06:23 rillig 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 } 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 flg |= SF; 448 break; 449 case 't': 450 /* 451 * preserve access time on filesystem nodes we read 452 */ 453 tflag = 1; 454 flg |= TF; 455 break; 456 case 'u': 457 /* 458 * ignore those older files 459 */ 460 uflag = 1; 461 flg |= UF; 462 break; 463 case 'v': 464 /* 465 * verbose operation mode 466 */ 467 vflag = 1; 468 flg |= VF; 469 break; 470 case 'w': 471 /* 472 * write an archive 473 */ 474 flg |= WF; 475 break; 476 case 'x': 477 /* 478 * specify an archive format on write 479 */ 480 tmp.name = optarg; 481 frmt = (FSUB *)bsearch((void *)&tmp, (void *)fsub, 482 sizeof(fsub)/sizeof(FSUB), sizeof(FSUB), c_frmt); 483 if (frmt != NULL) { 484 flg |= XF; 485 break; 486 } 487 tty_warn(1, "Unknown -x format: %s", optarg); 488 (void)fputs("pax: Known -x formats are:", stderr); 489 for (i = 0; i < (sizeof(fsub)/sizeof(FSUB)); ++i) 490 (void)fprintf(stderr, " %s", fsub[i].name); 491 (void)fputs("\n\n", stderr); 492 pax_usage(); 493 case 'z': 494 /* 495 * use gzip. Non standard option. 496 */ 497 gzip_program = GZIP_CMD; 498 break; 499 case 'A': 500 Aflag = 1; 501 flg |= CAF; 502 break; 503 case 'B': 504 /* 505 * non-standard option on number of bytes written on a 506 * single archive volume. 507 */ 508 if ((wrlimit = str_offt(optarg)) <= 0) { 509 tty_warn(1, "Invalid write limit %s", optarg); 510 pax_usage(); 511 } 512 if (wrlimit % BLKMULT) { 513 tty_warn(1, 514 "Write limit is not a %d byte multiple", 515 BLKMULT); 516 pax_usage(); 517 } 518 flg |= CBF; 519 break; 520 case 'D': 521 /* 522 * On extraction check file inode change time before the 523 * modification of the file name. Non standard option. 524 */ 525 Dflag = 1; 526 flg |= CDF; 527 break; 528 case 'E': 529 /* 530 * non-standard limit on read faults 531 * 0 indicates stop after first error, values 532 * indicate a limit, "none" try forever 533 */ 534 flg |= CEF; 535 if (strcmp(none, optarg) == 0) 536 maxflt = -1; 537 else if ((maxflt = atoi(optarg)) < 0) { 538 tty_warn(1, 539 "Error count value must be positive"); 540 pax_usage(); 541 } 542 break; 543 case 'G': 544 /* 545 * non-standard option for selecting files within an 546 * archive by group (gid or name) 547 */ 548 if (grp_add(optarg) < 0) 549 pax_usage(); 550 flg |= CGF; 551 break; 552 case 'H': 553 /* 554 * follow command line symlinks only 555 */ 556 Hflag = 1; 557 flg |= CHF; 558 break; 559 case 'L': 560 /* 561 * follow symlinks 562 */ 563 Lflag = 1; 564 flg |= CLF; 565 break; 566 #ifdef SMALL 567 case 'M': 568 case 'N': 569 tty_warn(1, "Support for -%c is not compiled in", c); 570 exit(1); 571 #else /* !SMALL */ 572 case 'M': 573 /* 574 * Treat list of filenames on stdin as an 575 * mtree(8) specfile. Non standard option. 576 */ 577 Mflag = 1; 578 flg |= CMF; 579 break; 580 case 'N': 581 /* 582 * Use alternative directory for user db lookups. 583 */ 584 if (!setup_getid(optarg)) { 585 tty_warn(1, 586 "Unable to use user and group databases in `%s'", 587 optarg); 588 pax_usage(); 589 } 590 break; 591 #endif /* !SMALL */ 592 case 'O': 593 /* 594 * Force one volume. Non standard option. 595 */ 596 force_one_volume = 1; 597 break; 598 case 'P': 599 /* 600 * do NOT follow symlinks (default) 601 */ 602 Lflag = 0; 603 flg |= CPF; 604 break; 605 case 'T': 606 /* 607 * non-standard option for selecting files within an 608 * archive by modification time range (lower,upper) 609 */ 610 if (trng_add(optarg) < 0) 611 pax_usage(); 612 flg |= CTF; 613 break; 614 case 'U': 615 /* 616 * non-standard option for selecting files within an 617 * archive by user (uid or name) 618 */ 619 if (usr_add(optarg) < 0) 620 pax_usage(); 621 flg |= CUF; 622 break; 623 case 'V': 624 /* 625 * somewhat verbose operation mode (no listing) 626 */ 627 Vflag = 1; 628 flg |= VSF; 629 break; 630 case 'X': 631 /* 632 * do not pass over mount points in the file system 633 */ 634 Xflag = 1; 635 flg |= CXF; 636 break; 637 case 'Y': 638 /* 639 * On extraction check file inode change time after the 640 * modification of the file name. Non standard option. 641 */ 642 Yflag = 1; 643 flg |= CYF; 644 break; 645 case 'Z': 646 /* 647 * On extraction check modification time after the 648 * modification of the file name. Non standard option. 649 */ 650 Zflag = 1; 651 flg |= CZF; 652 break; 653 case OPT_INSECURE: 654 secure = 0; 655 break; 656 case OPT_FORCE_LOCAL: 657 forcelocal = 1; 658 break; 659 case OPT_USE_COMPRESS_PROGRAM: 660 gzip_program = optarg; 661 break; 662 case OPT_XZ: 663 gzip_program = XZ_CMD; 664 break; 665 case OPT_GNU: 666 is_gnutar = 1; 667 break; 668 #ifndef SMALL 669 case OPT_TIMESTAMP: 670 if (set_tstamp(optarg, &tst) == -1) { 671 tty_warn(1, "Invalid timestamp `%s'", optarg); 672 tar_usage(); 673 } 674 break; 675 #endif 676 case '?': 677 default: 678 pax_usage(); 679 } 680 } 681 682 /* 683 * figure out the operation mode of pax read,write,extract,copy,append 684 * or list. check that we have not been given a bogus set of flags 685 * for the operation mode. 686 */ 687 if (ISLIST(flg)) { 688 act = LIST; 689 listf = stdout; 690 bflg = flg & BDLIST; 691 } else if (ISEXTRACT(flg)) { 692 act = EXTRACT; 693 bflg = flg & BDEXTR; 694 } else if (ISARCHIVE(flg)) { 695 act = ARCHIVE; 696 bflg = flg & BDARCH; 697 } else if (ISAPPND(flg)) { 698 act = APPND; 699 bflg = flg & BDARCH; 700 } else if (ISCOPY(flg)) { 701 act = COPY; 702 bflg = flg & BDCOPY; 703 } else 704 pax_usage(); 705 if (bflg) { 706 printflg(flg); 707 pax_usage(); 708 } 709 710 /* 711 * if we are writing (ARCHIVE) we use the default format if the user 712 * did not specify a format. when we write during an APPEND, we will 713 * adopt the format of the existing archive if none was supplied. 714 */ 715 if (!(flg & XF) && (act == ARCHIVE)) 716 frmt = &(fsub[DEFLT]); 717 718 /* 719 * process the args as they are interpreted by the operation mode 720 */ 721 switch (act) { 722 case LIST: 723 case EXTRACT: 724 for (; optind < argc; optind++) 725 if (pat_add(argv[optind], NULL, 0) < 0) 726 pax_usage(); 727 break; 728 case COPY: 729 if (optind >= argc) { 730 tty_warn(0, "Destination directory was not supplied"); 731 pax_usage(); 732 } 733 --argc; 734 dirptr = argv[argc]; 735 if (mkpath(dirptr) < 0) 736 exit(1); 737 /* FALLTHROUGH */ 738 case ARCHIVE: 739 case APPND: 740 for (; optind < argc; optind++) 741 if (ftree_add(argv[optind], 0) < 0) 742 pax_usage(); 743 /* 744 * no read errors allowed on updates/append operation! 745 */ 746 maxflt = 0; 747 break; 748 } 749 } 750 751 752 /* 753 * tar_options() 754 * look at the user specified flags. set globals as required and check if 755 * the user specified a legal set of flags. If not, complain and exit 756 */ 757 758 struct option tar_longopts[] = { 759 { "block-size", required_argument, 0, 'b' }, 760 { "bunzip2", no_argument, 0, 'j' }, 761 { "bzip2", no_argument, 0, 'j' }, 762 { "create", no_argument, 0, 'c' }, /* F */ 763 /* -e -- no corresponding long option */ 764 { "file", required_argument, 0, 'f' }, 765 { "dereference", no_argument, 0, 'h' }, 766 { "keep-old-files", no_argument, 0, 'k' }, 767 { "one-file-system", no_argument, 0, 'l' }, 768 { "modification-time", no_argument, 0, 'm' }, 769 { "old-archive", no_argument, 0, 'o' }, 770 { "portability", no_argument, 0, 'o' }, 771 { "same-permissions", no_argument, 0, 'p' }, 772 { "preserve-permissions", no_argument, 0, 'p' }, 773 { "preserve", no_argument, 0, 'p' }, 774 { "fast-read", no_argument, 0, 'q' }, 775 { "append", no_argument, 0, 'r' }, /* F */ 776 { "update", no_argument, 0, 'u' }, /* F */ 777 { "list", no_argument, 0, 't' }, /* F */ 778 { "verbose", no_argument, 0, 'v' }, 779 { "interactive", no_argument, 0, 'w' }, 780 { "confirmation", no_argument, 0, 'w' }, 781 { "extract", no_argument, 0, 'x' }, /* F */ 782 { "get", no_argument, 0, 'x' }, /* F */ 783 { "gzip", no_argument, 0, 'z' }, 784 { "gunzip", no_argument, 0, 'z' }, 785 { "read-full-blocks", no_argument, 0, 'B' }, 786 { "directory", required_argument, 0, 'C' }, 787 { "xz", no_argument, 0, 'J' }, 788 { "to-stdout", no_argument, 0, 'O' }, 789 { "absolute-paths", no_argument, 0, 'P' }, 790 { "sparse", no_argument, 0, 'S' }, 791 { "files-from", required_argument, 0, 'T' }, 792 { "summary", no_argument, 0, 'V' }, 793 { "stats", no_argument, 0, 'V' }, 794 { "exclude-from", required_argument, 0, 'X' }, 795 { "compress", no_argument, 0, 'Z' }, 796 { "uncompress", no_argument, 0, 'Z' }, 797 { "strict", no_argument, 0, 798 OPT_STRICT }, 799 { "atime-preserve", no_argument, 0, 800 OPT_ATIME_PRESERVE }, 801 { "unlink", no_argument, 0, 802 OPT_UNLINK }, 803 { "use-compress-program", required_argument, 0, 804 OPT_USE_COMPRESS_PROGRAM }, 805 { "force-local", no_argument, 0, 806 OPT_FORCE_LOCAL }, 807 { "insecure", no_argument, 0, 808 OPT_INSECURE }, 809 { "exclude", required_argument, 0, 810 OPT_EXCLUDE }, 811 { "no-recursion", no_argument, 0, 812 OPT_NORECURSE }, 813 #if !HAVE_NBTOOL_CONFIG_H 814 { "chroot", no_argument, 0, 815 OPT_CHROOT }, 816 #endif 817 { "timestamp", required_argument, 0, 818 OPT_TIMESTAMP }, 819 #if 0 /* Not implemented */ 820 { "catenate", no_argument, 0, 'A' }, /* F */ 821 { "concatenate", no_argument, 0, 'A' }, /* F */ 822 { "diff", no_argument, 0, 'd' }, /* F */ 823 { "compare", no_argument, 0, 'd' }, /* F */ 824 { "checkpoint", no_argument, 0, 825 OPT_CHECKPOINT }, 826 { "help", no_argument, 0, 827 OPT_HELP }, 828 { "info-script", required_argument, 0, 'F' }, 829 { "new-volume-script", required_argument, 0, 'F' }, 830 { "incremental", no_argument, 0, 'G' }, 831 { "listed-incremental", required_argument, 0, 'g' }, 832 { "ignore-zeros", no_argument, 0, 'i' }, 833 { "ignore-failed-read", no_argument, 0, 834 OPT_IGNORE_FAILED_READ }, 835 { "starting-file", no_argument, 0, 'K' }, 836 { "tape-length", required_argument, 0, 'L' }, 837 { "multi-volume", no_argument, 0, 'M' }, 838 { "after-date", required_argument, 0, 'N' }, 839 { "newer", required_argument, 0, 'N' }, 840 { "record-number", no_argument, 0, 'R' }, 841 { "remove-files", no_argument, 0, 842 OPT_REMOVE_FILES }, 843 { "same-order", no_argument, 0, 's' }, 844 { "preserve-order", no_argument, 0, 's' }, 845 { "null", no_argument, 0, 846 OPT_NULL }, 847 { "totals", no_argument, 0, 848 OPT_TOTALS }, 849 { "volume-name", required_argument, 0, 'V' }, /* XXX */ 850 { "label", required_argument, 0, 'V' }, /* XXX */ 851 { "version", no_argument, 0, 852 OPT_VERSION }, 853 { "verify", no_argument, 0, 'W' }, 854 { "block-compress", no_argument, 0, 855 OPT_BLOCK_COMPRESS }, 856 #endif 857 { 0, 0, 0, 0 }, 858 }; 859 860 static void 861 tar_set_action(int op) 862 { 863 if (act != ERROR && act != op) 864 tar_usage(); 865 act = op; 866 } 867 868 static void 869 tar_options(int argc, char **argv) 870 { 871 int c; 872 int fstdin = 0; 873 int Oflag = 0; 874 int nincfiles = 0; 875 int incfiles_max = 0; 876 struct incfile { 877 char *file; 878 char *dir; 879 }; 880 struct incfile *incfiles = NULL; 881 882 /* 883 * Set default values. 884 */ 885 rmleadslash = 1; 886 is_gnutar = 1; 887 888 /* 889 * process option flags 890 */ 891 while ((c = getoldopt(argc, argv, 892 "+b:cef:hjklmopqrs:tuvwxzBC:HI:JOPST:X:Z014578", 893 tar_longopts, NULL)) 894 != -1) { 895 switch(c) { 896 case 'b': 897 /* 898 * specify blocksize in 512-byte blocks 899 */ 900 if ((wrblksz = (int)str_offt(optarg)) <= 0) { 901 tty_warn(1, "Invalid block size %s", optarg); 902 tar_usage(); 903 } 904 wrblksz *= 512; /* XXX - check for int oflow */ 905 break; 906 case 'c': 907 /* 908 * create an archive 909 */ 910 tar_set_action(ARCHIVE); 911 break; 912 case 'e': 913 /* 914 * stop after first error 915 */ 916 maxflt = 0; 917 break; 918 case 'f': 919 /* 920 * filename where the archive is stored 921 */ 922 if ((optarg[0] == '-') && (optarg[1]== '\0')) { 923 /* 924 * treat a - as stdin 925 */ 926 fstdin = 1; 927 arcname = NULL; 928 break; 929 } 930 fstdin = 0; 931 arcname = optarg; 932 break; 933 case 'h': 934 /* 935 * follow symlinks 936 */ 937 Lflag = 1; 938 break; 939 case 'j': 940 /* 941 * pass through bzip2. not a standard option 942 */ 943 gzip_program = BZIP2_CMD; 944 break; 945 case 'k': 946 /* 947 * do not clobber files that exist 948 */ 949 kflag = 1; 950 break; 951 case 'l': 952 /* 953 * do not pass over mount points in the file system 954 */ 955 Xflag = 1; 956 break; 957 case 'm': 958 /* 959 * do not preserve modification time 960 */ 961 pmtime = 0; 962 break; 963 case 'o': 964 /* 965 * This option does several things based on whether 966 * this is a create or extract operation. 967 */ 968 if (act == ARCHIVE) { 969 /* GNU tar: write V7 format archives. */ 970 Oflag = 1; 971 /* 4.2BSD: don't add directory entries. */ 972 if (opt_add("write_opt=nodir") < 0) 973 tar_usage(); 974 975 } else { 976 /* SUS: don't preserve owner/group. */ 977 pids = 0; 978 nopids = 1; 979 } 980 break; 981 case 'p': 982 /* 983 * preserve user id, group id, file 984 * mode, access/modification times 985 */ 986 if (!nopids) 987 pids = 1; 988 pmode = 1; 989 patime = 1; 990 pmtime = 1; 991 break; 992 case 'q': 993 /* 994 * select first match for a pattern only 995 */ 996 nflag = 1; 997 break; 998 case 'r': 999 case 'u': 1000 /* 1001 * append to the archive 1002 */ 1003 tar_set_action(APPND); 1004 break; 1005 case 's': 1006 /* 1007 * file name substitution name pattern 1008 */ 1009 if (rep_add(optarg) < 0) 1010 tar_usage(); 1011 break; 1012 case 't': 1013 /* 1014 * list contents of the tape 1015 */ 1016 tar_set_action(LIST); 1017 break; 1018 case 'v': 1019 /* 1020 * verbose operation mode 1021 */ 1022 vflag = 1; 1023 break; 1024 case 'w': 1025 /* 1026 * interactive file rename 1027 */ 1028 iflag = 1; 1029 break; 1030 case 'x': 1031 /* 1032 * extract an archive, preserving mode, 1033 * and mtime if possible. 1034 */ 1035 tar_set_action(EXTRACT); 1036 pmtime = 1; 1037 break; 1038 case 'z': 1039 /* 1040 * use gzip. Non standard option. 1041 */ 1042 gzip_program = GZIP_CMD; 1043 break; 1044 case 'B': 1045 /* 1046 * Nothing to do here, this is pax default 1047 */ 1048 break; 1049 case 'C': 1050 havechd++; 1051 chdname = optarg; 1052 break; 1053 case 'H': 1054 /* 1055 * follow command line symlinks only 1056 */ 1057 Hflag = 1; 1058 break; 1059 case 'I': 1060 case 'T': 1061 if (++nincfiles > incfiles_max) { 1062 incfiles_max = nincfiles + 3; 1063 incfiles = realloc(incfiles, 1064 sizeof(*incfiles) * incfiles_max); 1065 if (incfiles == NULL) { 1066 tty_warn(0, "Unable to allocate space " 1067 "for option list"); 1068 exit(1); 1069 } 1070 } 1071 incfiles[nincfiles - 1].file = optarg; 1072 incfiles[nincfiles - 1].dir = chdname; 1073 break; 1074 case 'J': 1075 gzip_program = XZ_CMD; 1076 break; 1077 case 'O': 1078 Oflag = 1; 1079 break; 1080 case 'P': 1081 /* 1082 * do not remove leading '/' from pathnames 1083 */ 1084 rmleadslash = 0; 1085 Aflag = 1; 1086 break; 1087 case 'S': 1088 /* do nothing; we already generate sparse files */ 1089 break; 1090 case 'V': 1091 /* 1092 * semi-verbose operation mode (no listing) 1093 */ 1094 Vflag = 1; 1095 break; 1096 case 'X': 1097 /* 1098 * GNU tar compat: exclude the files listed in optarg 1099 */ 1100 if (tar_gnutar_X_compat(optarg) != 0) 1101 tar_usage(); 1102 break; 1103 case 'Z': 1104 /* 1105 * use compress. 1106 */ 1107 gzip_program = COMPRESS_CMD; 1108 break; 1109 case '0': 1110 arcname = DEV_0; 1111 break; 1112 case '1': 1113 arcname = DEV_1; 1114 break; 1115 case '4': 1116 arcname = DEV_4; 1117 break; 1118 case '5': 1119 arcname = DEV_5; 1120 break; 1121 case '7': 1122 arcname = DEV_7; 1123 break; 1124 case '8': 1125 arcname = DEV_8; 1126 break; 1127 case OPT_ATIME_PRESERVE: 1128 patime = 1; 1129 break; 1130 case OPT_UNLINK: 1131 /* Just ignore -- we always unlink first. */ 1132 break; 1133 case OPT_USE_COMPRESS_PROGRAM: 1134 gzip_program = optarg; 1135 break; 1136 case OPT_FORCE_LOCAL: 1137 forcelocal = 1; 1138 break; 1139 case OPT_INSECURE: 1140 secure = 0; 1141 break; 1142 case OPT_STRICT: 1143 /* disable gnu extensions */ 1144 is_gnutar = 0; 1145 break; 1146 case OPT_EXCLUDE: 1147 if (tar_gnutar_minus_minus_exclude(optarg) != 0) 1148 tar_usage(); 1149 break; 1150 case OPT_NORECURSE: 1151 dflag = 1; 1152 break; 1153 #if !HAVE_NBTOOL_CONFIG_H 1154 case OPT_CHROOT: 1155 do_chroot = 1; 1156 break; 1157 #endif 1158 #ifndef SMALL 1159 case OPT_TIMESTAMP: 1160 if (set_tstamp(optarg, &tst) == -1) { 1161 tty_warn(1, "Invalid timestamp `%s'", optarg); 1162 tar_usage(); 1163 } 1164 break; 1165 #endif 1166 default: 1167 tar_usage(); 1168 } 1169 } 1170 argc -= optind; 1171 argv += optind; 1172 1173 /* Tar requires an action. */ 1174 if (act == ERROR) 1175 tar_usage(); 1176 1177 /* Traditional tar behaviour (pax uses stderr unless in list mode) */ 1178 if (fstdin == 1 && act == ARCHIVE) 1179 listf = stderr; 1180 else 1181 listf = stdout; 1182 1183 /* Traditional tar behaviour (pax wants to read file list from stdin) */ 1184 if ((act == ARCHIVE || act == APPND) && argc == 0 && nincfiles == 0) 1185 exit(0); 1186 /* 1187 * if we are writing (ARCHIVE) specify tar, otherwise run like pax 1188 * (unless -o specified) 1189 */ 1190 if (act == ARCHIVE || act == APPND) 1191 frmt = &(fsub[Oflag ? F_TAR : F_USTAR]); 1192 else if (Oflag) { 1193 if (act == EXTRACT) 1194 to_stdout = 1; 1195 else { 1196 tty_warn(1, "The -O/-o options are only valid when " 1197 "writing or extracting an archive"); 1198 tar_usage(); 1199 } 1200 } 1201 1202 /* 1203 * process the args as they are interpreted by the operation mode 1204 */ 1205 switch (act) { 1206 case LIST: 1207 case EXTRACT: 1208 default: 1209 { 1210 int sawpat = 0; 1211 int dirisnext = 0; 1212 char *file, *dir = NULL; 1213 int mustfreedir = 0; 1214 1215 while (nincfiles || *argv != NULL) { 1216 /* 1217 * If we queued up any include files, 1218 * pull them in now. Otherwise, check 1219 * for -I and -C positional flags. 1220 * Anything else must be a file to 1221 * extract. 1222 */ 1223 if (nincfiles) { 1224 file = incfiles->file; 1225 dir = incfiles->dir; 1226 mustfreedir = 0; 1227 incfiles++; 1228 nincfiles--; 1229 } else if (strcmp(*argv, "-I") == 0) { 1230 if (*++argv == NULL) 1231 break; 1232 file = *argv++; 1233 dir = chdname; 1234 mustfreedir = 0; 1235 } else { 1236 file = NULL; 1237 dir = NULL; 1238 mustfreedir = 0; 1239 } 1240 if (file != NULL) { 1241 FILE *fp; 1242 char *str; 1243 1244 if (strcmp(file, "-") == 0) 1245 fp = stdin; 1246 else if ((fp = fopen(file, "r")) == NULL) { 1247 tty_warn(1, "Unable to open file '%s' for read", file); 1248 tar_usage(); 1249 } 1250 while ((str = get_line(fp)) != NULL) { 1251 if (dirisnext) { 1252 if (dir && mustfreedir) 1253 free(dir); 1254 dir = str; 1255 mustfreedir = 1; 1256 dirisnext = 0; 1257 continue; 1258 } 1259 if (strcmp(str, "-C") == 0) { 1260 havechd++; 1261 dirisnext = 1; 1262 free(str); 1263 continue; 1264 } 1265 if (strncmp(str, "-C ", 3) == 0) { 1266 havechd++; 1267 if (dir && mustfreedir) 1268 free(dir); 1269 dir = strdup(str + 3); 1270 mustfreedir = 1; 1271 free(str); 1272 continue; 1273 } 1274 if (pat_add(str, dir, NOGLOB_MTCH) < 0) 1275 tar_usage(); 1276 sawpat = 1; 1277 } 1278 /* Bomb if given -C w/out a dir. */ 1279 if (dirisnext) 1280 tar_usage(); 1281 if (dir && mustfreedir) 1282 free(dir); 1283 if (strcmp(file, "-") != 0) 1284 fclose(fp); 1285 if (get_line_error) { 1286 tty_warn(1, "Problem with file '%s'", file); 1287 tar_usage(); 1288 } 1289 } else if (strcmp(*argv, "-C") == 0) { 1290 if (*++argv == NULL) 1291 break; 1292 chdname = *argv++; 1293 havechd++; 1294 } else if (pat_add(*argv++, chdname, 0) < 0) 1295 tar_usage(); 1296 else 1297 sawpat = 1; 1298 } 1299 /* 1300 * if patterns were added, we are doing chdir() 1301 * on a file-by-file basis, else, just one 1302 * global chdir (if any) after opening input. 1303 */ 1304 if (sawpat > 0) 1305 chdname = NULL; 1306 } 1307 break; 1308 case ARCHIVE: 1309 case APPND: 1310 if (chdname != NULL) { /* initial chdir() */ 1311 if (ftree_add(chdname, 1) < 0) 1312 tar_usage(); 1313 } 1314 1315 while (nincfiles || *argv != NULL) { 1316 char *file, *dir; 1317 1318 /* 1319 * If we queued up any include files, pull them in 1320 * now. Otherwise, check for -I and -C positional 1321 * flags. Anything else must be a file to include 1322 * in the archive. 1323 */ 1324 if (nincfiles) { 1325 file = incfiles->file; 1326 dir = incfiles->dir; 1327 incfiles++; 1328 nincfiles--; 1329 } else if (strcmp(*argv, "-I") == 0) { 1330 if (*++argv == NULL) 1331 break; 1332 file = *argv++; 1333 dir = NULL; 1334 } else { 1335 file = NULL; 1336 dir = NULL; 1337 } 1338 if (file != NULL) { 1339 FILE *fp; 1340 char *str; 1341 int dirisnext = 0; 1342 1343 /* Set directory if needed */ 1344 if (dir) { 1345 if (ftree_add(dir, 1) < 0) 1346 tar_usage(); 1347 } 1348 1349 if (strcmp(file, "-") == 0) 1350 fp = stdin; 1351 else if ((fp = fopen(file, "r")) == NULL) { 1352 tty_warn(1, "Unable to open file '%s' for read", file); 1353 tar_usage(); 1354 } 1355 while ((str = get_line(fp)) != NULL) { 1356 if (dirisnext) { 1357 if (ftree_add(str, 1) < 0) 1358 tar_usage(); 1359 dirisnext = 0; 1360 continue; 1361 } 1362 if (strcmp(str, "-C") == 0) { 1363 dirisnext = 1; 1364 continue; 1365 } 1366 if (strncmp(str, "-C ", 3) == 0) { 1367 if (ftree_add(str + 3, 1) < 0) 1368 tar_usage(); 1369 continue; 1370 } 1371 if (ftree_add(str, 0) < 0) 1372 tar_usage(); 1373 } 1374 /* Bomb if given -C w/out a dir. */ 1375 if (dirisnext) 1376 tar_usage(); 1377 if (strcmp(file, "-") != 0) 1378 fclose(fp); 1379 if (get_line_error) { 1380 tty_warn(1, "Problem with file '%s'", 1381 file); 1382 tar_usage(); 1383 } 1384 } else if (strcmp(*argv, "-C") == 0) { 1385 if (*++argv == NULL) 1386 break; 1387 if (ftree_add(*argv++, 1) < 0) 1388 tar_usage(); 1389 } else if (ftree_add(*argv++, 0) < 0) 1390 tar_usage(); 1391 } 1392 /* 1393 * no read errors allowed on updates/append operation! 1394 */ 1395 maxflt = 0; 1396 break; 1397 } 1398 if (!fstdin && ((arcname == NULL) || (*arcname == '\0'))) { 1399 arcname = getenv("TAPE"); 1400 if ((arcname == NULL) || (*arcname == '\0')) 1401 arcname = _PATH_DEFTAPE; 1402 } 1403 } 1404 1405 int 1406 mkpath(char *path) 1407 { 1408 char *slash; 1409 int done = 0; 1410 1411 slash = path; 1412 1413 while (!done) { 1414 slash += strspn(slash, "/"); 1415 slash += strcspn(slash, "/"); 1416 1417 done = (*slash == '\0'); 1418 *slash = '\0'; 1419 1420 if (domkdir(path, 0777) == -1) 1421 goto out; 1422 1423 if (!done) 1424 *slash = '/'; 1425 } 1426 1427 return 0; 1428 out: 1429 /* Can't create or or not a directory */ 1430 syswarn(1, errno, "Cannot create directory `%s'", path); 1431 return -1; 1432 } 1433 1434 1435 #ifndef NO_CPIO 1436 struct option cpio_longopts[] = { 1437 { "reset-access-time", no_argument, 0, 'a' }, 1438 { "make-directories", no_argument, 0, 'd' }, 1439 { "nonmatching", no_argument, 0, 'f' }, 1440 { "extract", no_argument, 0, 'i' }, 1441 { "link", no_argument, 0, 'l' }, 1442 { "preserve-modification-time", no_argument, 0, 'm' }, 1443 { "create", no_argument, 0, 'o' }, 1444 { "pass-through", no_argument, 0, 'p' }, 1445 { "rename", no_argument, 0, 'r' }, 1446 { "list", no_argument, 0, 't' }, 1447 { "unconditional", no_argument, 0, 'u' }, 1448 { "verbose", no_argument, 0, 'v' }, 1449 { "append", no_argument, 0, 'A' }, 1450 { "pattern-file", required_argument, 0, 'E' }, 1451 { "file", required_argument, 0, 'F' }, 1452 { "force-local", no_argument, 0, 1453 OPT_FORCE_LOCAL }, 1454 { "format", required_argument, 0, 'H' }, 1455 { "dereference", no_argument, 0, 'L' }, 1456 { "swap-halfwords", no_argument, 0, 'S' }, 1457 { "summary", no_argument, 0, 'V' }, 1458 { "stats", no_argument, 0, 'V' }, 1459 { "insecure", no_argument, 0, 1460 OPT_INSECURE }, 1461 { "sparse", no_argument, 0, 1462 OPT_SPARSE }, 1463 { "xz", no_argument, 0, 1464 OPT_XZ }, 1465 1466 #ifdef notyet 1467 /* Not implemented */ 1468 { "null", no_argument, 0, '0' }, 1469 { "swap", no_argument, 0, 'b' }, 1470 { "numeric-uid-gid", no_argument, 0, 'n' }, 1471 { "swap-bytes", no_argument, 0, 's' }, 1472 { "message", required_argument, 0, 'M' }, 1473 { "owner", required_argument, 0 'R' }, 1474 { "dot", no_argument, 0, 'V' }, /* xxx */ 1475 { "block-size", required_argument, 0, 1476 OPT_BLOCK_SIZE }, 1477 { "no-absolute-pathnames", no_argument, 0, 1478 OPT_NO_ABSOLUTE_PATHNAMES }, 1479 { "no-preserve-owner", no_argument, 0, 1480 OPT_NO_PRESERVE_OWNER }, 1481 { "only-verify-crc", no_argument, 0, 1482 OPT_ONLY_VERIFY_CRC }, 1483 { "rsh-command", required_argument, 0, 1484 OPT_RSH_COMMAND }, 1485 { "version", no_argument, 0, 1486 OPT_VERSION }, 1487 #endif 1488 { 0, 0, 0, 0 }, 1489 }; 1490 1491 static void 1492 cpio_set_action(int op) 1493 { 1494 if ((act == APPND && op == ARCHIVE) || (act == ARCHIVE && op == APPND)) 1495 act = APPND; 1496 else if (act == EXTRACT && op == LIST) 1497 act = op; 1498 else if (act != ERROR && act != op) 1499 cpio_usage(); 1500 else 1501 act = op; 1502 } 1503 1504 /* 1505 * cpio_options() 1506 * look at the user specified flags. set globals as required and check if 1507 * the user specified a legal set of flags. If not, complain and exit 1508 */ 1509 1510 static void 1511 cpio_options(int argc, char **argv) 1512 { 1513 FSUB tmp; 1514 u_int64_t flg = 0; 1515 u_int64_t bflg = 0; 1516 int c; 1517 size_t i; 1518 FILE *fp; 1519 char *str; 1520 1521 uflag = 1; 1522 kflag = 1; 1523 pids = 1; 1524 pmode = 1; 1525 pmtime = 0; 1526 arcname = NULL; 1527 dflag = 1; 1528 nodirs = 1; 1529 /* 1530 * process option flags 1531 */ 1532 while ((c = getoldopt(argc, argv, 1533 "+abcdfiklmoprstuvzABC:E:F:H:I:LM:O:R:SVZ6", 1534 cpio_longopts, NULL)) != -1) { 1535 switch(c) { 1536 case 'a': 1537 /* 1538 * preserve access time on filesystem nodes we read 1539 */ 1540 tflag = 1; 1541 flg |= TF; 1542 break; 1543 #ifdef notyet 1544 case 'b': 1545 /* 1546 * swap bytes and half-words when reading data 1547 */ 1548 break; 1549 #endif 1550 case 'c': 1551 /* 1552 * ASCII cpio header 1553 */ 1554 frmt = &fsub[F_SV4CPIO]; 1555 break; 1556 case 'd': 1557 /* 1558 * create directories as needed 1559 * pax does this by default .. 1560 */ 1561 nodirs = 0; 1562 break; 1563 case 'f': 1564 /* 1565 * inverse match on patterns 1566 */ 1567 cflag = 1; 1568 flg |= CF; 1569 break; 1570 case 'i': 1571 /* 1572 * read the archive 1573 */ 1574 cpio_set_action(EXTRACT); 1575 flg |= RF; 1576 break; 1577 #ifdef notyet 1578 case 'k': 1579 break; 1580 #endif 1581 case 'l': 1582 /* 1583 * try to link src to dest with copy (-rw) 1584 */ 1585 lflag = 1; 1586 flg |= LF; 1587 break; 1588 case 'm': 1589 /* 1590 * preserve mtime 1591 */ 1592 flg |= PF; 1593 pmtime = 1; 1594 break; 1595 case 'o': 1596 /* 1597 * write an archive 1598 */ 1599 cpio_set_action(ARCHIVE); 1600 frmt = &(fsub[F_SV4CRC]); 1601 flg |= WF; 1602 break; 1603 case 'p': 1604 /* 1605 * cpio -p is like pax -rw 1606 */ 1607 cpio_set_action(COPY); 1608 flg |= RF | WF; 1609 break; 1610 case 'r': 1611 /* 1612 * interactive file rename 1613 */ 1614 iflag = 1; 1615 flg |= IF; 1616 break; 1617 #ifdef notyet 1618 case 's': 1619 /* 1620 * swap bytes after reading data 1621 */ 1622 break; 1623 #endif 1624 case 't': 1625 /* 1626 * list contents of archive 1627 */ 1628 cpio_set_action(LIST); 1629 listf = stdout; 1630 flg &= ~RF; 1631 break; 1632 case 'u': 1633 /* 1634 * don't ignore those older files 1635 */ 1636 uflag = 0; 1637 kflag = 0; 1638 flg |= UF; 1639 break; 1640 case 'v': 1641 /* 1642 * verbose operation mode 1643 */ 1644 vflag = 1; 1645 flg |= VF; 1646 break; 1647 case 'z': 1648 /* 1649 * use gzip. Non standard option. 1650 */ 1651 gzip_program = GZIP_CMD; 1652 break; 1653 case 'A': 1654 /* 1655 * append to an archive 1656 */ 1657 cpio_set_action(APPND); 1658 flg |= AF; 1659 break; 1660 case 'B': 1661 /* 1662 * set blocksize to 5120 1663 */ 1664 blksz = 5120; 1665 break; 1666 case 'C': 1667 /* 1668 * specify blocksize 1669 */ 1670 if ((blksz = (int)str_offt(optarg)) <= 0) { 1671 tty_warn(1, "Invalid block size %s", optarg); 1672 cpio_usage(); 1673 } 1674 break; 1675 case 'E': 1676 /* 1677 * file with patterns to extract or list 1678 */ 1679 if ((fp = fopen(optarg, "r")) == NULL) { 1680 tty_warn(1, "Unable to open file '%s' for read", 1681 optarg); 1682 cpio_usage(); 1683 } 1684 while ((str = get_line(fp)) != NULL) { 1685 pat_add(str, NULL, 0); 1686 } 1687 fclose(fp); 1688 if (get_line_error) { 1689 tty_warn(1, "Problem with file '%s'", optarg); 1690 cpio_usage(); 1691 } 1692 break; 1693 case 'H': 1694 /* 1695 * specify an archive format on write 1696 */ 1697 tmp.name = optarg; 1698 frmt = (FSUB *)bsearch((void *)&tmp, (void *)fsub, 1699 sizeof(fsub)/sizeof(FSUB), sizeof(FSUB), c_frmt); 1700 if (frmt != NULL) { 1701 flg |= XF; 1702 break; 1703 } 1704 tty_warn(1, "Unknown -H format: %s", optarg); 1705 (void)fputs("cpio: Known -H formats are:", stderr); 1706 for (i = 0; i < (sizeof(fsub)/sizeof(FSUB)); ++i) 1707 (void)fprintf(stderr, " %s", fsub[i].name); 1708 (void)fputs("\n\n", stderr); 1709 cpio_usage(); 1710 case 'F': 1711 case 'I': 1712 case 'O': 1713 /* 1714 * filename where the archive is stored 1715 */ 1716 if ((optarg[0] == '-') && (optarg[1]== '\0')) { 1717 /* 1718 * treat a - as stdin 1719 */ 1720 arcname = NULL; 1721 break; 1722 } 1723 arcname = optarg; 1724 break; 1725 case 'L': 1726 /* 1727 * follow symlinks 1728 */ 1729 Lflag = 1; 1730 flg |= CLF; 1731 break; 1732 #ifdef notyet 1733 case 'M': 1734 arg = optarg; 1735 break; 1736 case 'R': 1737 arg = optarg; 1738 break; 1739 #endif 1740 case 'S': 1741 /* 1742 * swap halfwords after reading data 1743 */ 1744 cpio_swp_head = 1; 1745 break; 1746 #ifdef notyet 1747 case 'V': /* print a '.' for each file processed */ 1748 break; 1749 #endif 1750 case 'V': 1751 /* 1752 * semi-verbose operation mode (no listing) 1753 */ 1754 Vflag = 1; 1755 flg |= VF; 1756 break; 1757 case 'Z': 1758 /* 1759 * use compress. Non standard option. 1760 */ 1761 gzip_program = COMPRESS_CMD; 1762 break; 1763 case '6': 1764 /* 1765 * process Version 6 cpio format 1766 */ 1767 frmt = &(fsub[F_BCPIO]); 1768 break; 1769 case OPT_FORCE_LOCAL: 1770 forcelocal = 1; 1771 break; 1772 case OPT_INSECURE: 1773 secure = 0; 1774 break; 1775 case OPT_SPARSE: 1776 /* do nothing; we already generate sparse files */ 1777 break; 1778 case OPT_XZ: 1779 gzip_program = XZ_CMD; 1780 break; 1781 default: 1782 cpio_usage(); 1783 } 1784 } 1785 1786 /* 1787 * figure out the operation mode of cpio. check that we have not been 1788 * given a bogus set of flags for the operation mode. 1789 */ 1790 if (ISLIST(flg)) { 1791 act = LIST; 1792 bflg = flg & BDLIST; 1793 } else if (ISEXTRACT(flg)) { 1794 act = EXTRACT; 1795 bflg = flg & BDEXTR; 1796 } else if (ISARCHIVE(flg)) { 1797 act = ARCHIVE; 1798 bflg = flg & BDARCH; 1799 } else if (ISAPPND(flg)) { 1800 act = APPND; 1801 bflg = flg & BDARCH; 1802 } else if (ISCOPY(flg)) { 1803 act = COPY; 1804 bflg = flg & BDCOPY; 1805 } else 1806 cpio_usage(); 1807 if (bflg) { 1808 cpio_usage(); 1809 } 1810 1811 /* 1812 * if we are writing (ARCHIVE) we use the default format if the user 1813 * did not specify a format. when we write during an APPEND, we will 1814 * adopt the format of the existing archive if none was supplied. 1815 */ 1816 if (!(flg & XF) && (act == ARCHIVE)) 1817 frmt = &(fsub[F_BCPIO]); 1818 1819 /* 1820 * process the args as they are interpreted by the operation mode 1821 */ 1822 switch (act) { 1823 case LIST: 1824 case EXTRACT: 1825 for (; optind < argc; optind++) 1826 if (pat_add(argv[optind], NULL, 0) < 0) 1827 cpio_usage(); 1828 break; 1829 case COPY: 1830 if (optind >= argc) { 1831 tty_warn(0, "Destination directory was not supplied"); 1832 cpio_usage(); 1833 } 1834 --argc; 1835 dirptr = argv[argc]; 1836 /* FALLTHROUGH */ 1837 case ARCHIVE: 1838 case APPND: 1839 if (argc != optind) { 1840 for (; optind < argc; optind++) 1841 if (ftree_add(argv[optind], 0) < 0) 1842 cpio_usage(); 1843 break; 1844 } 1845 /* 1846 * no read errors allowed on updates/append operation! 1847 */ 1848 maxflt = 0; 1849 while ((str = get_line(stdin)) != NULL) { 1850 ftree_add(str, 0); 1851 } 1852 if (get_line_error) { 1853 tty_warn(1, "Problem while reading stdin"); 1854 cpio_usage(); 1855 } 1856 break; 1857 default: 1858 cpio_usage(); 1859 } 1860 } 1861 #endif 1862 1863 /* 1864 * printflg() 1865 * print out those invalid flag sets found to the user 1866 */ 1867 1868 static void 1869 printflg(unsigned int flg) 1870 { 1871 int nxt; 1872 1873 (void)fprintf(stderr,"%s: Invalid combination of options:", argv0); 1874 while ((nxt = ffs(flg)) != 0) { 1875 flg &= ~(1 << (nxt - 1)); 1876 (void)fprintf(stderr, " -%c", flgch[nxt - 1]); 1877 } 1878 (void)putc('\n', stderr); 1879 } 1880 1881 /* 1882 * c_frmt() 1883 * comparison routine used by bsearch to find the format specified 1884 * by the user 1885 */ 1886 1887 static int 1888 c_frmt(const void *a, const void *b) 1889 { 1890 return strcmp(((const FSUB *)a)->name, ((const FSUB *)b)->name); 1891 } 1892 1893 /* 1894 * opt_next() 1895 * called by format specific options routines to get each format specific 1896 * flag and value specified with -o 1897 * Return: 1898 * pointer to next OPLIST entry or NULL (end of list). 1899 */ 1900 1901 OPLIST * 1902 opt_next(void) 1903 { 1904 OPLIST *opt; 1905 1906 if ((opt = ophead) != NULL) 1907 ophead = ophead->fow; 1908 return opt; 1909 } 1910 1911 /* 1912 * bad_opt() 1913 * generic routine used to complain about a format specific options 1914 * when the format does not support options. 1915 */ 1916 1917 int 1918 bad_opt(void) 1919 { 1920 OPLIST *opt; 1921 1922 if (ophead == NULL) 1923 return 0; 1924 /* 1925 * print all we were given 1926 */ 1927 tty_warn(1," These format options are not supported for %s", 1928 frmt->name); 1929 while ((opt = opt_next()) != NULL) 1930 (void)fprintf(stderr, "\t%s = %s\n", opt->name, opt->value); 1931 if (strcmp(NM_TAR, argv0) == 0) 1932 tar_usage(); 1933 #ifndef NO_CPIO 1934 else if (strcmp(NM_CPIO, argv0) == 0) 1935 cpio_usage(); 1936 #endif 1937 else 1938 pax_usage(); 1939 } 1940 1941 /* 1942 * opt_add() 1943 * breaks the value supplied to -o into a option name and value. options 1944 * are given to -o in the form -o name-value,name=value 1945 * multiple -o may be specified. 1946 * Return: 1947 * 0 if format in name=value format, -1 if -o is passed junk 1948 */ 1949 1950 int 1951 opt_add(const char *str) 1952 { 1953 OPLIST *opt; 1954 char *frpt; 1955 char *pt; 1956 char *endpt; 1957 char *dstr; 1958 1959 if ((str == NULL) || (*str == '\0')) { 1960 tty_warn(0, "Invalid option name"); 1961 return -1; 1962 } 1963 if ((dstr = strdup(str)) == NULL) { 1964 tty_warn(0, "Unable to allocate space for option list"); 1965 return -1; 1966 } 1967 frpt = endpt = dstr; 1968 1969 /* 1970 * break into name and values pieces and stuff each one into a 1971 * OPLIST structure. When we know the format, the format specific 1972 * option function will go through this list 1973 */ 1974 while ((frpt != NULL) && (*frpt != '\0')) { 1975 if ((endpt = strchr(frpt, ',')) != NULL) 1976 *endpt = '\0'; 1977 if ((pt = strchr(frpt, '=')) == NULL) { 1978 tty_warn(0, "Invalid options format"); 1979 free(dstr); 1980 return -1; 1981 } 1982 if ((opt = (OPLIST *)malloc(sizeof(OPLIST))) == NULL) { 1983 tty_warn(0, "Unable to allocate space for option list"); 1984 free(dstr); 1985 return -1; 1986 } 1987 *pt++ = '\0'; 1988 opt->name = frpt; 1989 opt->value = pt; 1990 opt->fow = NULL; 1991 if (endpt != NULL) 1992 frpt = endpt + 1; 1993 else 1994 frpt = NULL; 1995 if (ophead == NULL) { 1996 optail = ophead = opt; 1997 continue; 1998 } 1999 optail->fow = opt; 2000 optail = opt; 2001 } 2002 return 0; 2003 } 2004 2005 /* 2006 * str_offt() 2007 * Convert an expression of the following forms to an off_t > 0. 2008 * 1) A positive decimal number. 2009 * 2) A positive decimal number followed by a b (mult by 512). 2010 * 3) A positive decimal number followed by a k (mult by 1024). 2011 * 4) A positive decimal number followed by a m (mult by 512). 2012 * 5) A positive decimal number followed by a w (mult by sizeof int) 2013 * 6) Two or more positive decimal numbers (with/without k,b or w). 2014 * separated by x (also * for backwards compatibility), specifying 2015 * the product of the indicated values. 2016 * Return: 2017 * 0 for an error, a positive value o.w. 2018 */ 2019 2020 static off_t 2021 str_offt(char *val) 2022 { 2023 char *expr; 2024 off_t num, t; 2025 2026 num = STRTOOFFT(val, &expr, 0); 2027 if ((num == OFFT_MAX) || (num <= 0) || (expr == val)) 2028 return 0; 2029 2030 switch(*expr) { 2031 case 'b': 2032 t = num; 2033 num *= 512; 2034 if (t > num) 2035 return 0; 2036 ++expr; 2037 break; 2038 case 'k': 2039 t = num; 2040 num *= 1024; 2041 if (t > num) 2042 return 0; 2043 ++expr; 2044 break; 2045 case 'm': 2046 t = num; 2047 num *= 1048576; 2048 if (t > num) 2049 return 0; 2050 ++expr; 2051 break; 2052 case 'w': 2053 t = num; 2054 num *= sizeof(int); 2055 if (t > num) 2056 return 0; 2057 ++expr; 2058 break; 2059 } 2060 2061 switch(*expr) { 2062 case '\0': 2063 break; 2064 case '*': 2065 case 'x': 2066 t = num; 2067 num *= str_offt(expr + 1); 2068 if (t > num) 2069 return 0; 2070 break; 2071 default: 2072 return 0; 2073 } 2074 return num; 2075 } 2076 2077 static char * 2078 get_line(FILE *f) 2079 { 2080 char *name, *temp; 2081 size_t len; 2082 2083 name = fgetln(f, &len); 2084 if (!name) { 2085 get_line_error = ferror(f) ? GETLINE_FILE_CORRUPT : 0; 2086 return 0; 2087 } 2088 if (name[len-1] != '\n') 2089 len++; 2090 temp = malloc(len); 2091 if (!temp) { 2092 get_line_error = GETLINE_OUT_OF_MEM; 2093 return 0; 2094 } 2095 memcpy(temp, name, len-1); 2096 temp[len-1] = 0; 2097 return temp; 2098 } 2099 2100 #ifndef SMALL 2101 /* 2102 * set_tstamp() 2103 * Use a specific timestamp for all individual files created in the 2104 * archive 2105 */ 2106 static int 2107 set_tstamp(const char *b, struct stat *st) 2108 { 2109 time_t when; 2110 char *eb; 2111 long long l; 2112 2113 if (stat(b, st) != -1) 2114 return 0; 2115 2116 #ifndef HAVE_NBTOOL_CONFIG_H 2117 errno = 0; 2118 if ((when = parsedate(b, NULL, NULL)) == -1 && errno != 0) 2119 #endif 2120 { 2121 errno = 0; 2122 l = strtoll(b, &eb, 0); 2123 if (b == eb || *eb || errno) 2124 return -1; 2125 when = (time_t)l; 2126 } 2127 2128 st->st_ino = 1; 2129 #if HAVE_STRUCT_STAT_BIRTHTIME 2130 st->st_birthtime = 2131 #endif 2132 st->st_mtime = st->st_ctime = st->st_atime = when; 2133 return 0; 2134 } 2135 #endif 2136 2137 /* 2138 * no_op() 2139 * for those option functions where the archive format has nothing to do. 2140 * Return: 2141 * 0 2142 */ 2143 2144 static int 2145 no_op(void) 2146 { 2147 return 0; 2148 } 2149 2150 /* 2151 * pax_usage() 2152 * print the usage summary to the user 2153 */ 2154 2155 static void 2156 pax_usage(void) 2157 { 2158 fprintf(stderr, 2159 "usage: pax [-0cdjnvzVO] [-E limit] [-f archive] [-N dbdir] [-s replstr] ...\n" 2160 " [-U user] ... [-G group] ... [-T [from_date][,to_date]] ...\n" 2161 " [pattern ...]\n"); 2162 fprintf(stderr, 2163 " pax -r [-cdijknuvzADOVYZ] [-E limit] [-f archive] [-N dbdir]\n" 2164 " [-o options] ... [-p string] ... [-s replstr] ... [-U user] ...\n" 2165 " [-G group] ... [-T [from_date][,to_date]] ... [pattern ...]\n"); 2166 fprintf(stderr, 2167 " pax -w [-dijtuvzAHLMOPVX] [-b blocksize] [[-a] [-f archive]] [-x format]\n" 2168 " [-B bytes] [-N dbdir] [-o options] ... [-s replstr] ...\n" 2169 " [-U user] ... [-G group] ...\n" 2170 " [-T [from_date][,to_date][/[c][m]]] ... [file ...]\n"); 2171 fprintf(stderr, 2172 " pax -r -w [-dijklntuvzADHLMOPVXYZ] [-N dbdir] [-p string] ...\n" 2173 " [-s replstr] ... [-U user] ... [-G group] ...\n" 2174 " [-T [from_date][,to_date][/[c][m]]] ... [file ...] directory\n"); 2175 exit(1); 2176 /* NOTREACHED */ 2177 } 2178 2179 /* 2180 * tar_usage() 2181 * print the usage summary to the user 2182 */ 2183 2184 static void 2185 tar_usage(void) 2186 { 2187 (void)fputs("usage: tar [-]{crtux}[-befhjklmopqvwzHJOPSXZ014578] " 2188 "[archive] [blocksize]\n" 2189 " [-C directory] [-T file] [-s replstr] " 2190 "[file ...]\n", stderr); 2191 exit(1); 2192 /* NOTREACHED */ 2193 } 2194 2195 #ifndef NO_CPIO 2196 /* 2197 * cpio_usage() 2198 * print the usage summary to the user 2199 */ 2200 2201 static void 2202 cpio_usage(void) 2203 { 2204 2205 (void)fputs("usage: cpio -o [-aABcLvzZ] [-C bytes] [-F archive] " 2206 "[-H format] [-O archive]\n" 2207 " < name-list [> archive]\n" 2208 " cpio -i [-bBcdfmrsStuvzZ6] [-C bytes] [-E file] " 2209 "[-F archive] [-H format] \n" 2210 " [-I archive] " 2211 "[pattern ...] [< archive]\n" 2212 " cpio -p [-adlLmuv] destination-directory " 2213 "< name-list\n", stderr); 2214 exit(1); 2215 /* NOTREACHED */ 2216 } 2217 #endif 2218
Indexes created Fri Sep 26 20:09:58 GMT 2025