commands/pax/options.c

   1 /*-
   2  * Copyright (c) 1992 Keith Muller.
   3  * Copyright (c) 1992, 1993
   4  *      The Regents of the University of California.  All rights reserved.
   5  *
   6  * This code is derived from software contributed to Berkeley by
   7  * Keith Muller of the University of California, San Diego.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #define _POSIX_SOURCE 1
  35 #define _MINIX 1
  36
  37 #if 0
  38 #ifndef lint
  39 static char sccsid[] = "@(#)options.c   8.2 (Berkeley) 4/18/94";
  40 #endif /* not lint */
  41 #endif
  42
  43
  44 #include <sys/types.h>
  45 #include <sys/stat.h>
  46 #include <sys/mtio.h>
  47 #include <stdio.h>
  48 #include <string.h>
  49 #include <errno.h>
  50 #include <unistd.h>
  51 #include <stdlib.h>
  52 #include <limits.h>
  53 #include <minix/paths.h>
  54
  55 #include <sys/types.h>
  56 #include <string.h>
  57 #include <strings.h>
  58 #include <unistd.h>
  59
  60
  61 #include "pax.h"
  62 #include "options.h"
  63 #include "cpio.h"
  64 #include "tar.h"
  65 #include "extern.h"
  66
  67 /*
  68  * Routines which handle command line options
  69  */
  70
  71 static char flgch[] = FLGCH;    /* list of all possible flags */
  72 static OPLIST *ophead = NULL;   /* head for format specific options -x */
  73 static OPLIST *optail = NULL;   /* option tail */
  74
  75 static int no_op(void);
  76 static void printflg(unsigned int);
  77 static int c_frmt(const void *, const void *);
  78 static off_t str_offt(char *);
  79 static char *getline(FILE *fp);
  80 static void pax_options(int, char **);
  81 static void pax_usage(void);
  82 static void tar_options(int, char **);
  83 static void tar_usage(void);
  84 static void cpio_options(int, char **);
  85 static void cpio_usage(void);
  86
  87 /* errors from getline */
  88 #define GETLINE_FILE_CORRUPT 1
  89 #define GETLINE_OUT_OF_MEM 2
  90 static int getline_error;
  91
  92
  93 #define GZIP_CMD        "gzip"          /* command to run as gzip */
  94 #define COMPRESS_CMD    "compress"      /* command to run as compress */
  95 #define BZIP2_CMD       "bzip2"         /* command to run as gzip */
  96
  97 /*
  98  *      Format specific routine table - MUST BE IN SORTED ORDER BY NAME
  99  *      (see pax.h for description of each function)
 100  *
 101  *      name, blksz, hdsz, udev, hlk, blkagn, inhead, id, st_read,
 102  *      read, end_read, st_write, write, end_write, trail,
 103  *      rd_data, wr_data, options
 104  */
 105
 106 FSUB fsub[] = {
 107 /* 0: OLD BINARY CPIO */
 108         {"bcpio", 5120, sizeof(HD_BCPIO), 1, 0, 0, 1, bcpio_id, cpio_strd,
 109         bcpio_rd, bcpio_endrd, cpio_stwr, bcpio_wr, cpio_endwr, cpio_trail,
 110         NULL, rd_wrfile, wr_rdfile, bad_opt},
 111
 112 /* 1: OLD OCTAL CHARACTER CPIO */
 113         {"cpio", 5120, sizeof(HD_CPIO), 1, 0, 0, 1, cpio_id, cpio_strd,
 114         cpio_rd, cpio_endrd, cpio_stwr, cpio_wr, cpio_endwr, cpio_trail,
 115         NULL, rd_wrfile, wr_rdfile, bad_opt},
 116
 117 /* 2: SVR4 HEX CPIO */
 118         {"sv4cpio", 5120, sizeof(HD_VCPIO), 1, 0, 0, 1, vcpio_id, cpio_strd,
 119         vcpio_rd, vcpio_endrd, cpio_stwr, vcpio_wr, cpio_endwr, cpio_trail,
 120         NULL, rd_wrfile, wr_rdfile, bad_opt},
 121
 122 /* 3: SVR4 HEX CPIO WITH CRC */
 123         {"sv4crc", 5120, sizeof(HD_VCPIO), 1, 0, 0, 1, crc_id, crc_strd,
 124         vcpio_rd, vcpio_endrd, crc_stwr, vcpio_wr, cpio_endwr, cpio_trail,
 125         NULL, rd_wrfile, wr_rdfile, bad_opt},
 126
 127 /* 4: OLD TAR */
 128         {"tar", 10240, BLKMULT, 0, 1, BLKMULT, 0, tar_id, no_op,
 129         tar_rd, tar_endrd, no_op, tar_wr, tar_endwr, NULL, tar_trail,
 130         rd_wrfile, wr_rdfile, tar_opt},
 131
 132 /* 5: POSIX USTAR */
 133         {"ustar", 10240, BLKMULT, 0, 1, BLKMULT, 0, ustar_id, ustar_strd,
 134         ustar_rd, tar_endrd, ustar_stwr, ustar_wr, tar_endwr, NULL, tar_trail,
 135         rd_wrfile, wr_rdfile, bad_opt},
 136 };
 137 #define F_OCPIO 0       /* format when called as cpio -6 */
 138 #define F_ACPIO 1       /* format when called as cpio -c */
 139 #define F_CPIO  3       /* format when called as cpio */
 140 #define F_OTAR  4       /* format when called as tar -o */
 141 #define F_TAR   5       /* format when called as tar */
 142 #define DEFLT   5       /* default write format from list above */
 143
 144 /*
 145  * ford is the archive search order used by get_arc() to determine what kind
 146  * of archive we are dealing with. This helps to properly id  archive formats
 147  * some formats may be subsets of others....
 148  */
 149 int ford[] = {5, 4, 3, 2, 1, 0, -1 };
 150
 151 /*
 152  * options()
 153  *      figure out if we are pax, tar or cpio. Call the appropriate options
 154  *      parser
 155  */
 156
 157 void
 158 options(int argc, char **argv)
 159 {
 160
 161         /*
 162          * Are we acting like pax, tar or cpio (based on argv[0])
 163          */
 164         if ((argv0 = strrchr(argv[0], '/')) != NULL)
 165                 argv0++;
 166         else
 167                 argv0 = argv[0];
 168
 169         if (strcmp(NM_TAR, argv0) == 0) {
 170                 tar_options(argc, argv);
 171                 return;
 172         }
 173         else if (strcmp(NM_CPIO, argv0) == 0) {
 174                 cpio_options(argc, argv);
 175                 return;
 176         }
 177         /*
 178          * assume pax as the default
 179          */
 180         argv0 = NM_PAX;
 181         pax_options(argc, argv);
 182         return;
 183 }
 184
 185 /*
 186  * pax_options()
 187  *      look at the user specified flags. set globals as required and check if
 188  *      the user specified a legal set of flags. If not, complain and exit
 189  */
 190
 191 static void
 192 pax_options(int argc, char **argv)
 193 {
 194         int c;
 195         size_t i;
 196         unsigned int flg = 0;
 197         unsigned int bflg = 0;
 198         char *pt;
 199         FSUB tmp;
 200
 201         /*
 202          * process option flags
 203          */
 204         while ((c=getopt(argc,argv,"ab:cdf:iklno:p:rs:tuvwx:zB:DE:G:HLPT:U:XYZ"))
 205             != -1) {
 206                 switch (c) {
 207                 case 'a':
 208                         /*
 209                          * append
 210                          */
 211                         flg |= AF;
 212                         break;
 213                 case 'b':
 214                         /*
 215                          * specify blocksize
 216                          */
 217                         flg |= BF;
 218                         if ((wrblksz = (int)str_offt(optarg)) <= 0) {
 219                                 paxwarn(1, "Invalid block size %s", optarg);
 220                                 pax_usage();
 221                         }
 222                         break;
 223                 case 'c':
 224                         /*
 225                          * inverse match on patterns
 226                          */
 227                         cflag = 1;
 228                         flg |= CF;
 229                         break;
 230                 case 'd':
 231                         /*
 232                          * match only dir on extract, not the subtree at dir
 233                          */
 234                         dflag = 1;
 235                         flg |= DF;
 236                         break;
 237                 case 'f':
 238                         /*
 239                          * filename where the archive is stored
 240                          */
 241                         arcname = optarg;
 242                         flg |= FF;
 243                         break;
 244                 case 'i':
 245                         /*
 246                          * interactive file rename
 247                          */
 248                         iflag = 1;
 249                         flg |= IF;
 250                         break;
 251                 case 'k':
 252                         /*
 253                          * do not clobber files that exist
 254                          */
 255                         kflag = 1;
 256                         flg |= KF;
 257                         break;
 258                 case 'l':
 259                         /*
 260                          * try to link src to dest with copy (-rw)
 261                          */
 262                         lflag = 1;
 263                         flg |= LF;
 264                         break;
 265                 case 'n':
 266                         /*
 267                          * select first match for a pattern only
 268                          */
 269                         nflag = 1;
 270                         flg |= NF;
 271                         break;
 272                 case 'o':
 273                         /*
 274                          * pass format specific options
 275                          */
 276                         flg |= OF;
 277                         if (opt_add(optarg) < 0)
 278                                 pax_usage();
 279                         break;
 280                 case 'p':
 281                         /*
 282                          * specify file characteristic options
 283                          */
 284                         for (pt = optarg; *pt != '\0'; ++pt) {
 285                                 switch(*pt) {
 286                                 case 'a':
 287                                         /*
 288                                          * do not preserve access time
 289                                          */
 290                                         patime = 0;
 291                                         break;
 292                                 case 'e':
 293                                         /*
 294                                          * preserve user id, group id, file
 295                                          * mode, access/modification times
 296                                          */
 297                                         pids = 1;
 298                                         pmode = 1;
 299                                         patime = 1;
 300                                         pmtime = 1;
 301                                         break;
 302                                 case 'm':
 303                                         /*
 304                                          * do not preserve modification time
 305                                          */
 306                                         pmtime = 0;
 307                                         break;
 308                                 case 'o':
 309                                         /*
 310                                          * preserve uid/gid
 311                                          */
 312                                         pids = 1;
 313                                         break;
 314                                 case 'p':
 315                                         /*
 316                                          * preserver file mode bits
 317                                          */
 318                                         pmode = 1;
 319                                         break;
 320                                 default:
 321                                         paxwarn(1, "Invalid -p string: %c", *pt);
 322                                         pax_usage();
 323                                         break;
 324                                 }
 325                         }
 326                         flg |= PF;
 327                         break;
 328                 case 'r':
 329                         /*
 330                          * read the archive
 331                          */
 332                         flg |= RF;
 333                         break;
 334                 case 's':
 335                         /*
 336                          * file name substitution name pattern
 337                          */
 338                         if (rep_add(optarg) < 0) {
 339                                 pax_usage();
 340                                 break;
 341                         }
 342                         flg |= SF;
 343                         break;
 344                 case 't':
 345                         /*
 346                          * preserve access time on file system nodes we read
 347                          */
 348                         tflag = 1;
 349                         flg |= TF;
 350                         break;
 351                 case 'u':
 352                         /*
 353                          * ignore those older files
 354                          */
 355                         uflag = 1;
 356                         flg |= UF;
 357                         break;
 358                 case 'v':
 359                         /*
 360                          * verbose operation mode
 361                          */
 362                         vflag = 1;
 363                         flg |= VF;
 364                         break;
 365                 case 'w':
 366                         /*
 367                          * write an archive
 368                          */
 369                         flg |= WF;
 370                         break;
 371                 case 'x':
 372                         /*
 373                          * specify an archive format on write
 374                          */
 375                         tmp.name = optarg;
 376                         if ((frmt = (FSUB *)bsearch((void *)&tmp, (void *)fsub,
 377                             sizeof(fsub)/sizeof(FSUB), sizeof(FSUB), c_frmt)) != NULL) {
 378                                 flg |= XF;
 379                                 break;
 380                         }
 381                         paxwarn(1, "Unknown -x format: %s", optarg);
 382                         (void)fputs("pax: Known -x formats are:", stderr);
 383                         for (i = 0; i < (sizeof(fsub)/sizeof(FSUB)); ++i)
 384                                 (void)fprintf(stderr, " %s", fsub[i].name);
 385                         (void)fputs("\n\n", stderr);
 386                         pax_usage();
 387                         break;
 388                 case 'z':
 389                         /*
 390                          * use gzip.  Non standard option.
 391                          */
 392                         gzip_program = GZIP_CMD;
 393                         break;
 394                 case 'B':
 395                         /*
 396                          * non-standard option on number of bytes written on a
 397                          * single archive volume.
 398                          */
 399                         if ((wrlimit = str_offt(optarg)) <= 0) {
 400                                 paxwarn(1, "Invalid write limit %s", optarg);
 401                                 pax_usage();
 402                         }
 403                         if (wrlimit % BLKMULT) {
 404                                 paxwarn(1, "Write limit is not a %d byte multiple",
 405                                     BLKMULT);
 406                                 pax_usage();
 407                         }
 408                         flg |= CBF;
 409                         break;
 410                 case 'D':
 411                         /*
 412                          * On extraction check file inode change time before the
 413                          * modification of the file name. Non standard option.
 414                          */
 415                         Dflag = 1;
 416                         flg |= CDF;
 417                         break;
 418                 case 'E':
 419                         /*
 420                          * non-standard limit on read faults
 421                          * 0 indicates stop after first error, values
 422                          * indicate a limit, "NONE" try forever
 423                          */
 424                         flg |= CEF;
 425                         if (strcmp(NONE, optarg) == 0)
 426                                 maxflt = -1;
 427                         else if ((maxflt = atoi(optarg)) < 0) {
 428                                 paxwarn(1, "Error count value must be positive");
 429                                 pax_usage();
 430                         }
 431                         break;
 432                 case 'G':
 433                         /*
 434                          * non-standard option for selecting files within an
 435                          * archive by group (gid or name)
 436                          */
 437                         if (grp_add(optarg) < 0) {
 438                                 pax_usage();
 439                                 break;
 440                         }
 441                         flg |= CGF;
 442                         break;
 443                 case 'H':
 444                         /*
 445                          * follow command line symlinks only
 446                          */
 447                         Hflag = 1;
 448                         flg |= CHF;
 449                         break;
 450                 case 'L':
 451                         /*
 452                          * follow symlinks
 453                          */
 454                         Lflag = 1;
 455                         flg |= CLF;
 456                         break;
 457                 case 'P':
 458                         /*
 459                          * do NOT follow symlinks (default)
 460                          */
 461                         Lflag = 0;
 462                         flg |= CPF;
 463                         break;
 464                 case 'T':
 465                         /*
 466                          * non-standard option for selecting files within an
 467                          * archive by modification time range (lower,upper)
 468                          */
 469                         if (trng_add(optarg) < 0) {
 470                                 pax_usage();
 471                                 break;
 472                         }
 473                         flg |= CTF;
 474                         break;
 475                 case 'U':
 476                         /*
 477                          * non-standard option for selecting files within an
 478                          * archive by user (uid or name)
 479                          */
 480                         if (usr_add(optarg) < 0) {
 481                                 pax_usage();
 482                                 break;
 483                         }
 484                         flg |= CUF;
 485                         break;
 486                 case 'X':
 487                         /*
 488                          * do not pass over mount points in the file system
 489                          */
 490                         Xflag = 1;
 491                         flg |= CXF;
 492                         break;
 493                 case 'Y':
 494                         /*
 495                          * On extraction check file inode change time after the
 496                          * modification of the file name. Non standard option.
 497                          */
 498                         Yflag = 1;
 499                         flg |= CYF;
 500                         break;
 501                 case 'Z':
 502                         /*
 503                          * On extraction check modification time after the
 504                          * modification of the file name. Non standard option.
 505                          */
 506                         Zflag = 1;
 507                         flg |= CZF;
 508                         break;
 509                 default:
 510                         pax_usage();
 511                         break;
 512                 }
 513         }
 514
 515         /*
 516          * figure out the operation mode of pax read,write,extract,copy,append
 517          * or list. check that we have not been given a bogus set of flags
 518          * for the operation mode.
 519          */
 520         if (ISLIST(flg)) {
 521                 act = LIST;
 522                 listf = stdout;
 523                 bflg = flg & BDLIST;
 524         } else if (ISEXTRACT(flg)) {
 525                 act = EXTRACT;
 526                 bflg = flg & BDEXTR;
 527         } else if (ISARCHIVE(flg)) {
 528                 act = ARCHIVE;
 529                 bflg = flg & BDARCH;
 530         } else if (ISAPPND(flg)) {
 531                 act = APPND;
 532                 bflg = flg & BDARCH;
 533         } else if (ISCOPY(flg)) {
 534                 act = COPY;
 535                 bflg = flg & BDCOPY;
 536         } else
 537                 pax_usage();
 538         if (bflg) {
 539                 printflg(flg);
 540                 pax_usage();
 541         }
 542
 543         /*
 544          * if we are writing (ARCHIVE) we use the default format if the user
 545          * did not specify a format. when we write during an APPEND, we will
 546          * adopt the format of the existing archive if none was supplied.
 547          */
 548         if (!(flg & XF) && (act == ARCHIVE))
 549                 frmt = &(fsub[DEFLT]);
 550
 551         /*
 552          * process the args as they are interpreted by the operation mode
 553          */
 554         switch (act) {
 555         case LIST:
 556         case EXTRACT:
 557                 for (; optind < argc; optind++)
 558                         if (pat_add(argv[optind], NULL) < 0)
 559                                 pax_usage();
 560                 break;
 561         case COPY:
 562                 if (optind >= argc) {
 563                         paxwarn(0, "Destination directory was not supplied");
 564                         pax_usage();
 565                 }
 566                 --argc;
 567                 dirptr = argv[argc];
 568                 /* FALLTHROUGH */
 569         case ARCHIVE:
 570         case APPND:
 571                 for (; optind < argc; optind++)
 572                         if (ftree_add(argv[optind], 0) < 0)
 573                                 pax_usage();
 574                 /*
 575                  * no read errors allowed on updates/append operation!
 576                  */
 577                 maxflt = 0;
 578                 break;
 579         }
 580 }
 581
 582 static void
 583 tar_set_action(int op)
 584 {
 585         if (act != ERROR && act != op)
 586                 tar_usage();
 587         act = op;
 588 }
 589
 590 /*
 591  * tar_options()
 592  *      look at the user specified flags. set globals as required and check if
 593  *      the user specified a legal set of flags. If not, complain and exit
 594  */
 595
 596 static void
 597 tar_options(int argc, char **argv)
 598 {
 599         int c;
 600         int fstdin = 0;
 601         int Oflag = 0;
 602         int nincfiles = 0;
 603         int incfiles_max = 0;
 604         struct incfile {
 605                 char *file;
 606                 char *dir;
 607         };
 608         struct incfile *incfiles = NULL;
 609
 610         /*
 611          * Set default values.
 612          */
 613         rmleadslash = 1;
 614
 615         /*
 616          * process option flags
 617          */
 618         while ((c = getoldopt(argc, argv,
 619             "b:cef:hjmopqruts:vwxyzBC:HI:LOPXZ014578")) != -1) {
 620                 switch(c) {
 621                 case 'b':
 622                         /*
 623                          * specify blocksize in 512-byte blocks
 624                          */
 625                         if ((wrblksz = (int)str_offt(optarg)) <= 0) {
 626                                 paxwarn(1, "Invalid block size %s", optarg);
 627                                 tar_usage();
 628                         }
 629                         wrblksz *= 512;         /* XXX - check for int oflow */
 630                         break;
 631                 case 'c':
 632                         /*
 633                          * create an archive
 634                          */
 635                         tar_set_action(ARCHIVE);
 636                         break;
 637                 case 'e':
 638                         /*
 639                          * stop after first error
 640                          */
 641                         maxflt = 0;
 642                         break;
 643                 case 'f':
 644                         /*
 645                          * filename where the archive is stored
 646                          */
 647                         if ((optarg[0] == '-') && (optarg[1]== '\0')) {
 648                                 /*
 649                                  * treat a - as stdin
 650                                  */
 651                                 fstdin = 1;
 652                                 arcname = NULL;
 653                                 break;
 654                         }
 655                         fstdin = 0;
 656                         arcname = optarg;
 657                         break;
 658                 case 'h':
 659                         /*
 660                          * follow symlinks
 661                          */
 662                         Lflag = 1;
 663                         break;
 664                 case 'j':
 665                 case 'y':
 666                         /*
 667                          * use bzip2.  Non standard option.
 668                          */
 669                         gzip_program = BZIP2_CMD;
 670                         break;
 671                 case 'm':
 672                         /*
 673                          * do not preserve modification time
 674                          */
 675                         pmtime = 0;
 676                         break;
 677                 case 'o':
 678                         if (opt_add("write_opt=nodir") < 0)
 679                                 tar_usage();
 680                 case 'O':
 681                         Oflag = 1;
 682                         break;
 683                 case 'p':
 684                         /*
 685                          * preserve uid/gid and file mode, regardless of umask
 686                          */
 687                         pmode = 1;
 688                         pids = 1;
 689                         break;
 690                 case 'q':
 691                         /*
 692                          * select first match for a pattern only
 693                          */
 694                         nflag = 1;
 695                         break;
 696                 case 'r':
 697                 case 'u':
 698                         /*
 699                          * append to the archive
 700                          */
 701                         tar_set_action(APPND);
 702                         break;
 703                 case 's':
 704                         /*
 705                          * file name substitution name pattern
 706                          */
 707                         if (rep_add(optarg) < 0) {
 708                                 tar_usage();
 709                                 break;
 710                         }
 711                         break;
 712                 case 't':
 713                         /*
 714                          * list contents of the tape
 715                          */
 716                         tar_set_action(LIST);
 717                         break;
 718                 case 'v':
 719                         /*
 720                          * verbose operation mode
 721                          */
 722                         vflag++;
 723                         break;
 724                 case 'w':
 725                         /*
 726                          * interactive file rename
 727                          */
 728                         iflag = 1;
 729                         break;
 730                 case 'x':
 731                         /*
 732                          * extract an archive, preserving mode,
 733                          * and mtime if possible.
 734                          */
 735                         tar_set_action(EXTRACT);
 736                         pmtime = 1;
 737                         break;
 738                 case 'z':
 739                         /*
 740                          * use gzip.  Non standard option.
 741                          */
 742                         gzip_program = GZIP_CMD;
 743                         break;
 744                 case 'B':
 745                         /*
 746                          * Nothing to do here, this is pax default
 747                          */
 748                         break;
 749                 case 'C':
 750                         chdname = optarg;
 751                         break;
 752                 case 'H':
 753                         /*
 754                          * follow command line symlinks only
 755                          */
 756                         Hflag = 1;
 757                         break;
 758                 case 'I':
 759                         if (++nincfiles > incfiles_max) {
 760                                 incfiles_max = nincfiles + 3;
 761                                 incfiles = realloc(incfiles,
 762                                     sizeof(*incfiles) * incfiles_max);
 763                                 if (incfiles == NULL) {
 764                                         paxwarn(0, "Unable to allocate space "
 765                                             "for option list");
 766                                         exit(1);
 767                                 }
 768                         }
 769                         incfiles[nincfiles - 1].file = optarg;
 770                         incfiles[nincfiles - 1].dir = chdname;
 771                         break;
 772                 case 'L':
 773                         /*
 774                          * follow symlinks
 775                          */
 776                         Lflag = 1;
 777                         break;
 778                 case 'P':
 779                         /*
 780                          * do not remove leading '/' from pathnames
 781                          */
 782                         rmleadslash = 0;
 783                         break;
 784                 case 'X':
 785                         /*
 786                          * do not pass over mount points in the file system
 787                          */
 788                         Xflag = 1;
 789                         break;
 790                 case 'Z':
 791                         /*
 792                          * use compress.
 793                          */
 794                         gzip_program = COMPRESS_CMD;
 795                         break;
 796                 case '0':
 797                         arcname = DEV_0;
 798                         break;
 799                 case '1':
 800                         arcname = DEV_1;
 801                         break;
 802                 case '4':
 803                         arcname = DEV_4;
 804                         break;
 805                 case '5':
 806                         arcname = DEV_5;
 807                         break;
 808                 case '7':
 809                         arcname = DEV_7;
 810                         break;
 811                 case '8':
 812                         arcname = DEV_8;
 813                         break;
 814                 default:
 815                         tar_usage();
 816                         break;
 817                 }
 818         }
 819         argc -= optind;
 820         argv += optind;
 821
 822         /* Tar requires an action. */
 823         if (act == ERROR)
 824                 tar_usage();
 825
 826         /* Traditional tar behaviour (pax uses stderr unless in list mode) */
 827         if (fstdin == 1 && act == ARCHIVE)
 828                 listf = stderr;
 829         else
 830                 listf = stdout;
 831
 832         /* Traditional tar behaviour (pax wants to read file list from stdin) */
 833         if ((act == ARCHIVE || act == APPND) && argc == 0 && nincfiles == 0)
 834                 exit(0);
 835
 836         /*
 837          * if we are writing (ARCHIVE) specify tar, otherwise run like pax
 838          * (unless -o specified)
 839          */
 840         if (act == ARCHIVE || act == APPND)
 841                 frmt = &(fsub[Oflag ? F_OTAR : F_TAR]);
 842         else if (Oflag) {
 843                 paxwarn(1, "The -O/-o options are only valid when writing an archive");
 844                 tar_usage();            /* only valid when writing */
 845         }
 846
 847         /*
 848          * process the args as they are interpreted by the operation mode
 849          */
 850         switch (act) {
 851         case LIST:
 852         case EXTRACT:
 853         default:
 854                 {
 855                         int sawpat = 0;
 856                         char *file, *dir = NULL;
 857
 858                         while (nincfiles || *argv != NULL) {
 859                                 /*
 860                                  * If we queued up any include files,
 861                                  * pull them in now.  Otherwise, check
 862                                  * for -I and -C positional flags.
 863                                  * Anything else must be a file to
 864                                  * extract.
 865                                  */
 866                                 if (nincfiles) {
 867                                         file = incfiles->file;
 868                                         dir = incfiles->dir;
 869                                         incfiles++;
 870                                         nincfiles--;
 871                                 } else if (strcmp(*argv, "-I") == 0) {
 872                                         if (*++argv == NULL)
 873                                                 break;
 874                                         file = *argv++;
 875                                         dir = chdname;
 876                                 } else
 877                                         file = NULL;
 878                                 if (file != NULL) {
 879                                         FILE *fp;
 880                                         char *str;
 881
 882                                         if (strcmp(file, "-") == 0)
 883                                                 fp = stdin;
 884                                         else if ((fp = fopen(file, "r")) == NULL) {
 885                                                 paxwarn(1, "Unable to open file '%s' for read", file);
 886                                                 tar_usage();
 887                                         }
 888                                         while ((str = getline(fp)) != NULL) {
 889                                                 if (pat_add(str, dir) < 0)
 890                                                         tar_usage();
 891                                                 sawpat = 1;
 892                                         }
 893                                         if (strcmp(file, "-") != 0)
 894                                                 fclose(fp);
 895                                         if (getline_error) {
 896                                                 paxwarn(1, "Problem with file '%s'", file);
 897                                                 tar_usage();
 898                                         }
 899                                 } else if (strcmp(*argv, "-C") == 0) {
 900                                         if (*++argv == NULL)
 901                                                 break;
 902                                         chdname = *argv++;
 903                                 } else if (pat_add(*argv++, chdname) < 0)
 904                                         tar_usage();
 905                                 else
 906                                         sawpat = 1;
 907                         }
 908                         /*
 909                          * if patterns were added, we are doing chdir()
 910                          * on a file-by-file basis, else, just one
 911                          * global chdir (if any) after opening input.
 912                          */
 913                         if (sawpat > 0)
 914                                 chdname = NULL;
 915                 }
 916                 break;
 917         case ARCHIVE:
 918         case APPND:
 919                 if (chdname != NULL) {  /* initial chdir() */
 920                         if (ftree_add(chdname, 1) < 0)
 921                                 tar_usage();
 922                 }
 923
 924                 while (nincfiles || *argv != NULL) {
 925                         char *file, *dir = NULL;
 926
 927                         /*
 928                          * If we queued up any include files, pull them in
 929                          * now.  Otherwise, check for -I and -C positional
 930                          * flags.  Anything else must be a file to include
 931                          * in the archive.
 932                          */
 933                         if (nincfiles) {
 934                                 file = incfiles->file;
 935                                 dir = incfiles->dir;
 936                                 incfiles++;
 937                                 nincfiles--;
 938                         } else if (strcmp(*argv, "-I") == 0) {
 939                                 if (*++argv == NULL)
 940                                         break;
 941                                 file = *argv++;
 942                                 dir = NULL;
 943                         } else
 944                                 file = NULL;
 945                         if (file != NULL) {
 946                                 FILE *fp;
 947                                 char *str;
 948
 949                                 /* Set directory if needed */
 950                                 if (dir) {
 951                                         if (ftree_add(dir, 1) < 0)
 952                                                 tar_usage();
 953                                 }
 954
 955                                 if (strcmp(file, "-") == 0)
 956                                         fp = stdin;
 957                                 else if ((fp = fopen(file, "r")) == NULL) {
 958                                         paxwarn(1, "Unable to open file '%s' for read", file);
 959                                         tar_usage();
 960                                 }
 961                                 while ((str = getline(fp)) != NULL) {
 962                                         if (ftree_add(str, 0) < 0)
 963                                                 tar_usage();
 964                                 }
 965                                 if (strcmp(file, "-") != 0)
 966                                         fclose(fp);
 967                                 if (getline_error) {
 968                                         paxwarn(1, "Problem with file '%s'",
 969                                             file);
 970                                         tar_usage();
 971                                 }
 972                         } else if (strcmp(*argv, "-C") == 0) {
 973                                 if (*++argv == NULL)
 974                                         break;
 975                                 if (ftree_add(*argv++, 1) < 0)
 976                                         tar_usage();
 977                         } else if (ftree_add(*argv++, 0) < 0)
 978                                 tar_usage();
 979                 }
 980                 /*
 981                  * no read errors allowed on updates/append operation!
 982                  */
 983                 maxflt = 0;
 984                 break;
 985         }
 986         if (!fstdin && ((arcname == NULL) || (*arcname == '\0'))) {
 987                 arcname = getenv("TAPE");
 988                 if ((arcname == NULL) || (*arcname == '\0'))
 989                         arcname = _PATH_DEFTAPE;
 990         }
 991 }
 992
 993 static int
 994 mkpath(char *path)
 995 {
 996         struct stat sb;
 997         char *slash;
 998         int done = 0;
 999
1000         slash = path;
1001
1002         while (!done) {
1003                 slash += strspn(slash, "/");
1004                 slash += strcspn(slash, "/");
1005
1006                 done = (*slash == '\0');
1007                 *slash = '\0';
1008
1009                 if (stat(path, &sb)) {
1010                         if (errno != ENOENT || mkdir(path, 0777)) {
1011                                 paxwarn(1, "%s", path);
1012                                 return (-1);
1013                         }
1014                 } else if (!S_ISDIR(sb.st_mode)) {
1015                         syswarn(1, ENOTDIR, "%s", path);
1016                         return (-1);
1017                 }
1018
1019                 if (!done)
1020                         *slash = '/';
1021         }
1022
1023         return (0);
1024 }
1025 /*
1026  * cpio_options()
1027  *      look at the user specified flags. set globals as required and check if
1028  *      the user specified a legal set of flags. If not, complain and exit
1029  */
1030
1031 static void
1032 cpio_options(int argc, char **argv)
1033 {
1034         int c;
1035         size_t i;
1036         char *str;
1037         FSUB tmp;
1038         FILE *fp;
1039
1040         kflag = 1;
1041         pids = 1;
1042         pmode = 1;
1043         pmtime = 0;
1044         arcname = NULL;
1045         dflag = 1;
1046         act = -1;
1047         nodirs = 1;
1048         while ((c=getopt(argc,argv,"abcdfiklmoprstuvzABC:E:F:H:I:LO:SZ6")) != -1)
1049                 switch (c) {
1050                         case 'a':
1051                                 /*
1052                                  * preserve access time on files read
1053                                  */
1054                                 tflag = 1;
1055                                 break;
1056                         case 'b':
1057                                 /*
1058                                  * swap bytes and half-words when reading data
1059                                  */
1060                                 break;
1061                         case 'c':
1062                                 /*
1063                                  * ASCII cpio header
1064                                  */
1065                                 frmt = &(fsub[F_ACPIO]);
1066                                 break;
1067                         case 'd':
1068                                 /*
1069                                  * create directories as needed
1070                                  */
1071                                 nodirs = 0;
1072                                 break;
1073                         case 'f':
1074                                 /*
1075                                  * invert meaning of pattern list
1076                                  */
1077                                 cflag = 1;
1078                                 break;
1079                         case 'i':
1080                                 /*
1081                                  * restore an archive
1082                                  */
1083                                 act = EXTRACT;
1084                                 break;
1085                         case 'k':
1086                                 break;
1087                         case 'l':
1088                                 /*
1089                                  * use links instead of copies when possible
1090                                  */
1091                                 lflag = 1;
1092                                 break;
1093                         case 'm':
1094                                 /*
1095                                  * preserve modification time
1096                                  */
1097                                 pmtime = 1;
1098                                 break;
1099                         case 'o':
1100                                 /*
1101                                  * create an archive
1102                                  */
1103                                 act = ARCHIVE;
1104                                 frmt = &(fsub[F_CPIO]);
1105                                 break;
1106                         case 'p':
1107                                 /*
1108                                  * copy-pass mode
1109                                  */
1110                                 act = COPY;
1111                                 break;
1112                         case 'r':
1113                                 /*
1114                                  * interactively rename files
1115                                  */
1116                                 iflag = 1;
1117                                 break;
1118                         case 's':
1119                                 /*
1120                                  * swap bytes after reading data
1121                                  */
1122                                 break;
1123                         case 't':
1124                                 /*
1125                                  * list contents of archive
1126                                  */
1127                                 act = LIST;
1128                                 listf = stdout;
1129                                 break;
1130                         case 'u':
1131                                 /*
1132                                  * replace newer files
1133                                  */
1134                                 kflag = 0;
1135                                 break;
1136                         case 'v':
1137                                 /*
1138                                  * verbose operation mode
1139                                  */
1140                                 vflag = 1;
1141                                 break;
1142                         case 'z':
1143                                 /*
1144                                  * use gzip.  Non standard option.
1145                                  */
1146                                 gzip_program = GZIP_CMD;
1147                                 break;
1148                         case 'A':
1149                                 /*
1150                                  * append mode
1151                                  */
1152                                 act = APPND;
1153                                 break;
1154                         case 'B':
1155                                 /*
1156                                  * Use 5120 byte block size
1157                                  */
1158                                 wrblksz = 5120;
1159                                 break;
1160                         case 'C':
1161                                 /*
1162                                  * set block size in bytes
1163                                  */
1164                                 wrblksz = atoi(optarg);
1165                                 break;
1166                         case 'E':
1167                                 /*
1168                                  * file with patterns to extract or list
1169                                  */
1170                                 if ((fp = fopen(optarg, "r")) == NULL) {
1171                                         paxwarn(1, "Unable to open file '%s' for read", optarg);
1172                                         cpio_usage();
1173                                 }
1174                                 while ((str = getline(fp)) != NULL) {
1175                                         pat_add(str, NULL);
1176                                 }
1177                                 fclose(fp);
1178                                 if (getline_error) {
1179                                         paxwarn(1, "Problem with file '%s'", optarg);
1180                                         cpio_usage();
1181                                 }
1182                                 break;
1183                         case 'F':
1184                         case 'I':
1185                         case 'O':
1186                                 /*
1187                                  * filename where the archive is stored
1188                                  */
1189                                 if ((optarg[0] == '-') && (optarg[1]== '\0')) {
1190                                         /*
1191                                          * treat a - as stdin
1192                                          */
1193                                         arcname = NULL;
1194                                         break;
1195                                 }
1196                                 arcname = optarg;
1197                                 break;
1198                         case 'H':
1199                                 /*
1200                                  * specify an archive format on write
1201                                  */
1202                                 tmp.name = optarg;
1203                                 if ((frmt = (FSUB *)bsearch((void *)&tmp, (void *)fsub,
1204                                     sizeof(fsub)/sizeof(FSUB), sizeof(FSUB), c_frmt)) != NULL)
1205                                         break;
1206                                 paxwarn(1, "Unknown -H format: %s", optarg);
1207                                 (void)fputs("cpio: Known -H formats are:", stderr);
1208                                 for (i = 0; i < (sizeof(fsub)/sizeof(FSUB)); ++i)
1209                                         (void)fprintf(stderr, " %s", fsub[i].name);
1210                                 (void)fputs("\n\n", stderr);
1211                                 cpio_usage();
1212                                 break;
1213                         case 'L':
1214                                 /*
1215                                  * follow symbolic links
1216                                  */
1217                                 Lflag = 1;
1218                                 break;
1219                         case 'S':
1220                                 /*
1221                                  * swap halfwords after reading data
1222                                  */
1223                                 break;
1224                         case 'Z':
1225                                 /*
1226                                  * use compress.  Non standard option.
1227                                  */
1228                                 gzip_program = COMPRESS_CMD;
1229                                 break;
1230                         case '6':
1231                                 /*
1232                                  * process Version 6 cpio format
1233                                  */
1234                                 frmt = &(fsub[F_OCPIO]);
1235                                 break;
1236                         case '?':
1237                         default:
1238                                 cpio_usage();
1239                                 break;
1240                 }
1241         argc -= optind;
1242         argv += optind;
1243
1244         /*
1245          * process the args as they are interpreted by the operation mode
1246          */
1247         switch (act) {
1248                 case LIST:
1249                 case EXTRACT:
1250                         while (*argv != NULL)
1251                                 if (pat_add(*argv++, NULL) < 0)
1252                                         cpio_usage();
1253                         break;
1254                 case COPY:
1255                         if (*argv == NULL) {
1256                                 paxwarn(0, "Destination directory was not supplied");
1257                                 cpio_usage();
1258                         }
1259                         dirptr = *argv;
1260                         if (mkpath(dirptr) < 0)
1261                                 cpio_usage();
1262                         --argc;
1263                         ++argv;
1264                         /* FALLTHROUGH */
1265                 case ARCHIVE:
1266                 case APPND:
1267                         if (*argv != NULL)
1268                                 cpio_usage();
1269                         /*
1270                          * no read errors allowed on updates/append operation!
1271                          */
1272                         maxflt = 0;
1273                         while ((str = getline(stdin)) != NULL) {
1274                                 ftree_add(str, 0);
1275                         }
1276                         if (getline_error) {
1277                                 paxwarn(1, "Problem while reading stdin");
1278                                 cpio_usage();
1279                         }
1280                         break;
1281                 default:
1282                         cpio_usage();
1283                         break;
1284         }
1285 }
1286
1287 /*
1288  * printflg()
1289  *      print out those invalid flag sets found to the user
1290  */
1291
1292 static void
1293 printflg(unsigned int flg)
1294 {
1295         int nxt;
1296         int pos = 0;
1297
1298         (void)fprintf(stderr,"%s: Invalid combination of options:", argv0);
1299         while ((nxt = ffs(flg)) != 0) {
1300                 flg = flg >> nxt;
1301                 pos += nxt;
1302                 (void)fprintf(stderr, " -%c", flgch[pos-1]);
1303         }
1304         (void)putc('\n', stderr);
1305 }
1306
1307 /*
1308  * c_frmt()
1309  *      comparison routine used by bsearch to find the format specified
1310  *      by the user
1311  */
1312
1313 static int
1314 c_frmt(const void *a, const void *b)
1315 {
1316         return(strcmp(((const FSUB *)a)->name, ((const FSUB *)b)->name));
1317 }
1318
1319 /*
1320  * opt_next()
1321  *      called by format specific options routines to get each format specific
1322  *      flag and value specified with -o
1323  * Return:
1324  *      pointer to next OPLIST entry or NULL (end of list).
1325  */
1326
1327 OPLIST *
1328 opt_next(void)
1329 {
1330         OPLIST *opt;
1331
1332         if ((opt = ophead) != NULL)
1333                 ophead = ophead->fow;
1334         return(opt);
1335 }
1336
1337 /*
1338  * bad_opt()
1339  *      generic routine used to complain about a format specific options
1340  *      when the format does not support options.
1341  */
1342
1343 int
1344 bad_opt(void)
1345 {
1346         OPLIST *opt;
1347
1348         if (ophead == NULL)
1349                 return(0);
1350         /*
1351          * print all we were given
1352          */
1353         paxwarn(1,"These format options are not supported");
1354         while ((opt = opt_next()) != NULL)
1355                 (void)fprintf(stderr, "\t%s = %s\n", opt->name, opt->value);
1356         pax_usage();
1357         return(0);
1358 }
1359
1360 /*
1361  * opt_add()
1362  *      breaks the value supplied to -o into an option name and value. Options
1363  *      are given to -o in the form -o name-value,name=value
1364  *      multiple -o may be specified.
1365  * Return:
1366  *      0 if format in name=value format, -1 if -o is passed junk.
1367  */
1368
1369 int
1370 opt_add(const char *str)
1371 {
1372         OPLIST *opt;
1373         char *frpt;
1374         char *pt;
1375         char *endpt;
1376         char *lstr;
1377
1378         if ((str == NULL) || (*str == '\0')) {
1379                 paxwarn(0, "Invalid option name");
1380                 return(-1);
1381         }
1382         if ((lstr = strdup(str)) == NULL) {
1383                 paxwarn(0, "Unable to allocate space for option list");
1384                 return(-1);
1385         }
1386         frpt = endpt = lstr;
1387
1388         /*
1389          * break into name and values pieces and stuff each one into a
1390          * OPLIST structure. When we know the format, the format specific
1391          * option function will go through this list
1392          */
1393         while ((frpt != NULL) && (*frpt != '\0')) {
1394                 if ((endpt = strchr(frpt, ',')) != NULL)
1395                         *endpt = '\0';
1396                 if ((pt = strchr(frpt, '=')) == NULL) {
1397                         paxwarn(0, "Invalid options format");
1398                         free(lstr);
1399                         return(-1);
1400                 }
1401                 if ((opt = (OPLIST *)malloc(sizeof(OPLIST))) == NULL) {
1402                         paxwarn(0, "Unable to allocate space for option list");
1403                         free(lstr);
1404                         return(-1);
1405                 }
1406                 *pt++ = '\0';
1407                 opt->name = frpt;
1408                 opt->value = pt;
1409                 opt->fow = NULL;
1410                 if (endpt != NULL)
1411                         frpt = endpt + 1;
1412                 else
1413                         frpt = NULL;
1414                 if (ophead == NULL) {
1415                         optail = ophead = opt;
1416                         continue;
1417                 }
1418                 optail->fow = opt;
1419                 optail = opt;
1420         }
1421         return(0);
1422 }
1423
1424 /*
1425  * str_offt()
1426  *      Convert an expression of the following forms to an off_t > 0.
1427  *      1) A positive decimal number.
1428  *      2) A positive decimal number followed by a b (mult by 512).
1429  *      3) A positive decimal number followed by a k (mult by 1024).
1430  *      4) A positive decimal number followed by a m (mult by 512).
1431  *      5) A positive decimal number followed by a w (mult by sizeof int)
1432  *      6) Two or more positive decimal numbers (with/without k,b or w).
1433  *         separated by x (also * for backwards compatibility), specifying
1434  *         the product of the indicated values.
1435  * Return:
1436  *      0 for an error, a positive value o.w.
1437  */
1438
1439 static off_t
1440 str_offt(char *val)
1441 {
1442         char *expr;
1443         off_t num, t;
1444
1445 #       ifdef NET2_STAT
1446         num = strtol(val, &expr, 0);
1447         if ((num == LONG_MAX) || (num <= 0) || (expr == val))
1448 #       else
1449         num = strtoq(val, &expr, 0);
1450         if ((num == QUAD_MAX) || (num <= 0) || (expr == val))
1451 #       endif
1452                 return(0);
1453
1454         switch(*expr) {
1455         case 'b':
1456                 t = num;
1457                 num *= 512;
1458                 if (t > num)
1459                         return(0);
1460                 ++expr;
1461                 break;
1462         case 'k':
1463                 t = num;
1464                 num *= 1024;
1465                 if (t > num)
1466                         return(0);
1467                 ++expr;
1468                 break;
1469         case 'm':
1470                 t = num;
1471                 num *= 1048576;
1472                 if (t > num)
1473                         return(0);
1474                 ++expr;
1475                 break;
1476         case 'w':
1477                 t = num;
1478                 num *= sizeof(int);
1479                 if (t > num)
1480                         return(0);
1481                 ++expr;
1482                 break;
1483         }
1484
1485         switch(*expr) {
1486                 case '\0':
1487                         break;
1488                 case '*':
1489                 case 'x':
1490                         t = num;
1491                         num *= str_offt(expr + 1);
1492                         if (t > num)
1493                                 return(0);
1494                         break;
1495                 default:
1496                         return(0);
1497         }
1498         return(num);
1499 }
1500
1501 char *fgetln(FILE *f, size_t *);
1502
1503 static char *
1504 getline(FILE *f)
1505 {
1506         char *name, *temp;
1507         size_t len;
1508
1509         name = fgetln(f, &len);
1510         if (!name) {
1511                 getline_error = ferror(f) ? GETLINE_FILE_CORRUPT : 0;
1512                 return(0);
1513         }
1514         if (name[len-1] != '\n')
1515                 len++;
1516         temp = malloc(len);
1517         if (!temp) {
1518                 getline_error = GETLINE_OUT_OF_MEM;
1519                 return(0);
1520         }
1521         memcpy(temp, name, len-1);
1522         temp[len-1] = 0;
1523         return(temp);
1524 }
1525
1526 /*
1527  * no_op()
1528  *      for those option functions where the archive format has nothing to do.
1529  * Return:
1530  *      0
1531  */
1532
1533 static int
1534 no_op(void)
1535 {
1536         return(0);
1537 }
1538
1539 /*
1540  * pax_usage()
1541  *      print the usage summary to the user
1542  */
1543
1544 static void
1545 pax_usage(void)
1546 {
1547         (void)fputs("usage: pax [-cdnvz] [-E limit] [-f archive] ", stderr);
1548         (void)fputs("[-s replstr] ... [-U user] ...", stderr);
1549         (void)fputs("\n    [-G group] ... ", stderr);
1550         (void)fputs("[-T [from_date][,to_date]] ... ", stderr);
1551         (void)fputs("[pattern ...]\n", stderr);
1552         (void)fputs("       pax -r [-cdiknuvzDYZ] [-E limit] ", stderr);
1553         (void)fputs("[-f archive] [-o options] ... \n", stderr);
1554         (void)fputs("      [-p string] ... [-s replstr] ... ", stderr);
1555         (void)fputs("[-U user] ... [-G group] ...\n        ", stderr);
1556         (void)fputs("[-T [from_date][,to_date]] ... ", stderr);
1557         (void)fputs(" [pattern ...]\n", stderr);
1558         (void)fputs("       pax -w [-dituvzHLPX] [-b blocksize] ", stderr);
1559         (void)fputs("[ [-a] [-f archive] ] [-x format] \n", stderr);
1560         (void)fputs("      [-B bytes] [-s replstr] ... ", stderr);
1561         (void)fputs("[-o options] ... [-U user] ...", stderr);
1562         (void)fputs("\n    [-G group] ... ", stderr);
1563         (void)fputs("[-T [from_date][,to_date][/[c][m]]] ... ", stderr);
1564         (void)fputs("[file ...]\n", stderr);
1565         (void)fputs("       pax -r -w [-diklntuvDHLPXYZ] ", stderr);
1566         (void)fputs("[-p string] ... [-s replstr] ...", stderr);
1567         (void)fputs("\n    [-U user] ... [-G group] ... ", stderr);
1568         (void)fputs("[-T [from_date][,to_date][/[c][m]]] ... ", stderr);
1569         (void)fputs("\n    [file ...] directory\n", stderr);
1570         exit(1);
1571 }
1572
1573 /*
1574  * tar_usage()
1575  *      print the usage summary to the user
1576  */
1577
1578 static void
1579 tar_usage(void)
1580 {
1581         (void)fputs("usage: tar [-]{crtux}[-befhjmopqsvwyzHLOPXZ014578] [blocksize] ",
1582                  stderr);
1583         (void)fputs("[archive] [replstr] [-C directory] [-I file] [file ...]\n",
1584             stderr);
1585         exit(1);
1586 }
1587
1588 /*
1589  * cpio_usage()
1590  *      print the usage summary to the user
1591  */
1592
1593 static void
1594 cpio_usage(void)
1595 {
1596         (void)fputs("usage: cpio -o [-aABcLvVzZ] [-C bytes] [-H format] [-O archive]\n", stderr);
1597         (void)fputs("               [-F archive] < name-list [> archive]\n", stderr);
1598         (void)fputs("       cpio -i [-bBcdfmnrsStuvVzZ6] [-C bytes] [-E file] [-H format]\n", stderr);
1599         (void)fputs("               [-I archive] [-F archive] [pattern...] [< archive]\n", stderr);
1600         (void)fputs("       cpio -p [-adlLmuvV] destination-directory < name-list\n", stderr);
1601         exit(1);
1602 }