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 <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 #ifdef __NBSD_LIBC
  72 #define getline pax_getline
  73 #endif
  74
  75 static char flgch[] = FLGCH;    /* list of all possible flags */
  76 static OPLIST *ophead = NULL;   /* head for format specific options -x */
  77 static OPLIST *optail = NULL;   /* option tail */
  78
  79 static int no_op(void);
  80 static void printflg(unsigned int);
  81 static int c_frmt(const void *, const void *);
  82 static off_t str_offt(char *);
  83 static char *getline(FILE *fp);
  84 static void pax_options(int, char **);
  85 static void pax_usage(void);
  86 static void tar_options(int, char **);
  87 static void tar_usage(void);
  88 static void cpio_options(int, char **);
  89 static void cpio_usage(void);
  90
  91 /* errors from getline */
  92 #define GETLINE_FILE_CORRUPT 1
  93 #define GETLINE_OUT_OF_MEM 2
  94 static int getline_error;
  95
  96
  97 #define GZIP_CMD        "gzip"          /* command to run as gzip */
  98 #define COMPRESS_CMD    "compress"      /* command to run as compress */
  99 #define BZIP2_CMD       "bzip2"         /* command to run as gzip */
 100
 101 /*
 102  *      Format specific routine table - MUST BE IN SORTED ORDER BY NAME
 103  *      (see pax.h for description of each function)
 104  *
 105  *      name, blksz, hdsz, udev, hlk, blkagn, inhead, id, st_read,
 106  *      read, end_read, st_write, write, end_write, trail,
 107  *      rd_data, wr_data, options
 108  */
 109
 110 FSUB fsub[] = {
 111 /* 0: OLD BINARY CPIO */
 112         {"bcpio", 5120, sizeof(HD_BCPIO), 1, 0, 0, 1, bcpio_id, cpio_strd,
 113         bcpio_rd, bcpio_endrd, cpio_stwr, bcpio_wr, cpio_endwr, cpio_trail,
 114         NULL, rd_wrfile, wr_rdfile, bad_opt},
 115
 116 /* 1: OLD OCTAL CHARACTER CPIO */
 117         {"cpio", 5120, sizeof(HD_CPIO), 1, 0, 0, 1, cpio_id, cpio_strd,
 118         cpio_rd, cpio_endrd, cpio_stwr, cpio_wr, cpio_endwr, cpio_trail,
 119         NULL, rd_wrfile, wr_rdfile, bad_opt},
 120
 121 /* 2: SVR4 HEX CPIO */
 122         {"sv4cpio", 5120, sizeof(HD_VCPIO), 1, 0, 0, 1, vcpio_id, cpio_strd,
 123         vcpio_rd, vcpio_endrd, cpio_stwr, vcpio_wr, cpio_endwr, cpio_trail,
 124         NULL, rd_wrfile, wr_rdfile, bad_opt},
 125
 126 /* 3: SVR4 HEX CPIO WITH CRC */
 127         {"sv4crc", 5120, sizeof(HD_VCPIO), 1, 0, 0, 1, crc_id, crc_strd,
 128         vcpio_rd, vcpio_endrd, crc_stwr, vcpio_wr, cpio_endwr, cpio_trail,
 129         NULL, rd_wrfile, wr_rdfile, bad_opt},
 130
 131 /* 4: OLD TAR */
 132         {"tar", 10240, BLKMULT, 0, 1, BLKMULT, 0, tar_id, no_op,
 133         tar_rd, tar_endrd, no_op, tar_wr, tar_endwr, NULL, tar_trail,
 134         rd_wrfile, wr_rdfile, tar_opt},
 135
 136 /* 5: POSIX USTAR */
 137         {"ustar", 10240, BLKMULT, 0, 1, BLKMULT, 0, ustar_id, ustar_strd,
 138         ustar_rd, tar_endrd, ustar_stwr, ustar_wr, tar_endwr, NULL, tar_trail,
 139         rd_wrfile, wr_rdfile, bad_opt},
 140 };
 141 #define F_OCPIO 0       /* format when called as cpio -6 */
 142 #define F_ACPIO 1       /* format when called as cpio -c */
 143 #define F_CPIO  3       /* format when called as cpio */
 144 #define F_OTAR  4       /* format when called as tar -o */
 145 #define F_TAR   5       /* format when called as tar */
 146 #define DEFLT   5       /* default write format from list above */
 147
 148 /*
 149  * ford is the archive search order used by get_arc() to determine what kind
 150  * of archive we are dealing with. This helps to properly id  archive formats
 151  * some formats may be subsets of others....
 152  */
 153 int ford[] = {5, 4, 3, 2, 1, 0, -1 };
 154
 155 /*
 156  * options()
 157  *      figure out if we are pax, tar or cpio. Call the appropriate options
 158  *      parser
 159  */
 160
 161 void
 162 options(int argc, char **argv)
 163 {
 164
 165         /*
 166          * Are we acting like pax, tar or cpio (based on argv[0])
 167          */
 168         if ((argv0 = strrchr(argv[0], '/')) != NULL)
 169                 argv0++;
 170         else
 171                 argv0 = argv[0];
 172
 173         if (strcmp(NM_TAR, argv0) == 0) {
 174                 tar_options(argc, argv);
 175                 return;
 176         }
 177         else if (strcmp(NM_CPIO, argv0) == 0) {
 178                 cpio_options(argc, argv);
 179                 return;
 180         }
 181         /*
 182          * assume pax as the default
 183          */
 184         argv0 = NM_PAX;
 185         pax_options(argc, argv);
 186         return;
 187 }
 188
 189 /*
 190  * pax_options()
 191  *      look at the user specified flags. set globals as required and check if
 192  *      the user specified a legal set of flags. If not, complain and exit
 193  */
 194
 195 static void
 196 pax_options(int argc, char **argv)
 197 {
 198         int c;
 199         size_t i;
 200         unsigned int flg = 0;
 201         unsigned int bflg = 0;
 202         char *pt;
 203         FSUB tmp;
 204
 205         /*
 206          * process option flags
 207          */
 208         while ((c=getopt(argc,argv,"ab:cdf:iklno:p:rs:tuvwx:zB:DE:G:HLPT:U:XYZ"))
 209             != -1) {
 210                 switch (c) {
 211                 case 'a':
 212                         /*
 213                          * append
 214                          */
 215                         flg |= AF;
 216                         break;
 217                 case 'b':
 218                         /*
 219                          * specify blocksize
 220                          */
 221                         flg |= BF;
 222                         if ((wrblksz = (int)str_offt(optarg)) <= 0) {
 223                                 paxwarn(1, "Invalid block size %s", optarg);
 224                                 pax_usage();
 225                         }
 226                         break;
 227                 case 'c':
 228                         /*
 229                          * inverse match on patterns
 230                          */
 231                         cflag = 1;
 232                         flg |= CF;
 233                         break;
 234                 case 'd':
 235                         /*
 236                          * match only dir on extract, not the subtree at dir
 237                          */
 238                         dflag = 1;
 239                         flg |= DF;
 240                         break;
 241                 case 'f':
 242                         /*
 243                          * filename where the archive is stored
 244                          */
 245                         arcname = optarg;
 246                         flg |= FF;
 247                         break;
 248                 case 'i':
 249                         /*
 250                          * interactive file rename
 251                          */
 252                         iflag = 1;
 253                         flg |= IF;
 254                         break;
 255                 case 'k':
 256                         /*
 257                          * do not clobber files that exist
 258                          */
 259                         kflag = 1;
 260                         flg |= KF;
 261                         break;
 262                 case 'l':
 263                         /*
 264                          * try to link src to dest with copy (-rw)
 265                          */
 266                         lflag = 1;
 267                         flg |= LF;
 268                         break;
 269                 case 'n':
 270                         /*
 271                          * select first match for a pattern only
 272                          */
 273                         nflag = 1;
 274                         flg |= NF;
 275                         break;
 276                 case 'o':
 277                         /*
 278                          * pass format specific options
 279                          */
 280                         flg |= OF;
 281                         if (opt_add(optarg) < 0)
 282                                 pax_usage();
 283                         break;
 284                 case 'p':
 285                         /*
 286                          * specify file characteristic options
 287                          */
 288                         for (pt = optarg; *pt != '\0'; ++pt) {
 289                                 switch(*pt) {
 290                                 case 'a':
 291                                         /*
 292                                          * do not preserve access time
 293                                          */
 294                                         patime = 0;
 295                                         break;
 296                                 case 'e':
 297                                         /*
 298                                          * preserve user id, group id, file
 299                                          * mode, access/modification times
 300                                          */
 301                                         pids = 1;
 302                                         pmode = 1;
 303                                         patime = 1;
 304                                         pmtime = 1;
 305                                         break;
 306                                 case 'm':
 307                                         /*
 308                                          * do not preserve modification time
 309                                          */
 310                                         pmtime = 0;
 311                                         break;
 312                                 case 'o':
 313                                         /*
 314                                          * preserve uid/gid
 315                                          */
 316                                         pids = 1;
 317                                         break;
 318                                 case 'p':
 319                                         /*
 320                                          * preserver file mode bits
 321                                          */
 322                                         pmode = 1;
 323                                         break;
 324                                 default:
 325                                         paxwarn(1, "Invalid -p string: %c", *pt);
 326                                         pax_usage();
 327                                         break;
 328                                 }
 329                         }
 330                         flg |= PF;
 331                         break;
 332                 case 'r':
 333                         /*
 334                          * read the archive
 335                          */
 336                         flg |= RF;
 337                         break;
 338                 case 's':
 339                         /*
 340                          * file name substitution name pattern
 341                          */
 342                         if (rep_add(optarg) < 0) {
 343                                 pax_usage();
 344                                 break;
 345                         }
 346                         flg |= SF;
 347                         break;
 348                 case 't':
 349                         /*
 350                          * preserve access time on file system nodes we read
 351                          */
 352                         tflag = 1;
 353                         flg |= TF;
 354                         break;
 355                 case 'u':
 356                         /*
 357                          * ignore those older files
 358                          */
 359                         uflag = 1;
 360                         flg |= UF;
 361                         break;
 362                 case 'v':
 363                         /*
 364                          * verbose operation mode
 365                          */
 366                         vflag = 1;
 367                         flg |= VF;
 368                         break;
 369                 case 'w':
 370                         /*
 371                          * write an archive
 372                          */
 373                         flg |= WF;
 374                         break;
 375                 case 'x':
 376                         /*
 377                          * specify an archive format on write
 378                          */
 379                         tmp.name = optarg;
 380                         if ((frmt = (FSUB *)bsearch((void *)&tmp, (void *)fsub,
 381                             sizeof(fsub)/sizeof(FSUB), sizeof(FSUB), c_frmt)) != NULL) {
 382                                 flg |= XF;
 383                                 break;
 384                         }
 385                         paxwarn(1, "Unknown -x format: %s", optarg);
 386                         (void)fputs("pax: Known -x formats are:", stderr);
 387                         for (i = 0; i < (sizeof(fsub)/sizeof(FSUB)); ++i)
 388                                 (void)fprintf(stderr, " %s", fsub[i].name);
 389                         (void)fputs("\n\n", stderr);
 390                         pax_usage();
 391                         break;
 392                 case 'z':
 393                         /*
 394                          * use gzip.  Non standard option.
 395                          */
 396                         gzip_program = GZIP_CMD;
 397                         break;
 398                 case 'B':
 399                         /*
 400                          * non-standard option on number of bytes written on a
 401                          * single archive volume.
 402                          */
 403                         if ((wrlimit = str_offt(optarg)) <= 0) {
 404                                 paxwarn(1, "Invalid write limit %s", optarg);
 405                                 pax_usage();
 406                         }
 407                         if (wrlimit % BLKMULT) {
 408                                 paxwarn(1, "Write limit is not a %d byte multiple",
 409                                     BLKMULT);
 410                                 pax_usage();
 411                         }
 412                         flg |= CBF;
 413                         break;
 414                 case 'D':
 415                         /*
 416                          * On extraction check file inode change time before the
 417                          * modification of the file name. Non standard option.
 418                          */
 419                         Dflag = 1;
 420                         flg |= CDF;
 421                         break;
 422                 case 'E':
 423                         /*
 424                          * non-standard limit on read faults
 425                          * 0 indicates stop after first error, values
 426                          * indicate a limit, "NONE" try forever
 427                          */
 428                         flg |= CEF;
 429                         if (strcmp(NONE, optarg) == 0)
 430                                 maxflt = -1;
 431                         else if ((maxflt = atoi(optarg)) < 0) {
 432                                 paxwarn(1, "Error count value must be positive");
 433                                 pax_usage();
 434                         }
 435                         break;
 436                 case 'G':
 437                         /*
 438                          * non-standard option for selecting files within an
 439                          * archive by group (gid or name)
 440                          */
 441                         if (grp_add(optarg) < 0) {
 442                                 pax_usage();
 443                                 break;
 444                         }
 445                         flg |= CGF;
 446                         break;
 447                 case 'H':
 448                         /*
 449                          * follow command line symlinks only
 450                          */
 451                         Hflag = 1;
 452                         flg |= CHF;
 453                         break;
 454                 case 'L':
 455                         /*
 456                          * follow symlinks
 457                          */
 458                         Lflag = 1;
 459                         flg |= CLF;
 460                         break;
 461                 case 'P':
 462                         /*
 463                          * do NOT follow symlinks (default)
 464                          */
 465                         Lflag = 0;
 466                         flg |= CPF;
 467                         break;
 468                 case 'T':
 469                         /*
 470                          * non-standard option for selecting files within an
 471                          * archive by modification time range (lower,upper)
 472                          */
 473                         if (trng_add(optarg) < 0) {
 474                                 pax_usage();
 475                                 break;
 476                         }
 477                         flg |= CTF;
 478                         break;
 479                 case 'U':
 480                         /*
 481                          * non-standard option for selecting files within an
 482                          * archive by user (uid or name)
 483                          */
 484                         if (usr_add(optarg) < 0) {
 485                                 pax_usage();
 486                                 break;
 487                         }
 488                         flg |= CUF;
 489                         break;
 490                 case 'X':
 491                         /*
 492                          * do not pass over mount points in the file system
 493                          */
 494                         Xflag = 1;
 495                         flg |= CXF;
 496                         break;
 497                 case 'Y':
 498                         /*
 499                          * On extraction check file inode change time after the
 500                          * modification of the file name. Non standard option.
 501                          */
 502                         Yflag = 1;
 503                         flg |= CYF;
 504                         break;
 505                 case 'Z':
 506                         /*
 507                          * On extraction check modification time after the
 508                          * modification of the file name. Non standard option.
 509                          */
 510                         Zflag = 1;
 511                         flg |= CZF;
 512                         break;
 513                 default:
 514                         pax_usage();
 515                         break;
 516                 }
 517         }
 518
 519         /*
 520          * figure out the operation mode of pax read,write,extract,copy,append
 521          * or list. check that we have not been given a bogus set of flags
 522          * for the operation mode.
 523          */
 524         if (ISLIST(flg)) {
 525                 act = LIST;
 526                 listf = stdout;
 527                 bflg = flg & BDLIST;
 528         } else if (ISEXTRACT(flg)) {
 529                 act = EXTRACT;
 530                 bflg = flg & BDEXTR;
 531         } else if (ISARCHIVE(flg)) {
 532                 act = ARCHIVE;
 533                 bflg = flg & BDARCH;
 534         } else if (ISAPPND(flg)) {
 535                 act = APPND;
 536                 bflg = flg & BDARCH;
 537         } else if (ISCOPY(flg)) {
 538                 act = COPY;
 539                 bflg = flg & BDCOPY;
 540         } else
 541                 pax_usage();
 542         if (bflg) {
 543                 printflg(flg);
 544                 pax_usage();
 545         }
 546
 547         /*
 548          * if we are writing (ARCHIVE) we use the default format if the user
 549          * did not specify a format. when we write during an APPEND, we will
 550          * adopt the format of the existing archive if none was supplied.
 551          */
 552         if (!(flg & XF) && (act == ARCHIVE))
 553                 frmt = &(fsub[DEFLT]);
 554
 555         /*
 556          * process the args as they are interpreted by the operation mode
 557          */
 558         switch (act) {
 559         case LIST:
 560         case EXTRACT:
 561                 for (; optind < argc; optind++)
 562                         if (pat_add(argv[optind], NULL) < 0)
 563                                 pax_usage();
 564                 break;
 565         case COPY:
 566                 if (optind >= argc) {
 567                         paxwarn(0, "Destination directory was not supplied");
 568                         pax_usage();
 569                 }
 570                 --argc;
 571                 dirptr = argv[argc];
 572                 /* FALLTHROUGH */
 573         case ARCHIVE:
 574         case APPND:
 575                 for (; optind < argc; optind++)
 576                         if (ftree_add(argv[optind], 0) < 0)
 577                                 pax_usage();
 578                 /*
 579                  * no read errors allowed on updates/append operation!
 580                  */
 581                 maxflt = 0;
 582                 break;
 583         }
 584 }
 585
 586 static void
 587 tar_set_action(int op)
 588 {
 589         if (act != ERROR && act != op)
 590                 tar_usage();
 591         act = op;
 592 }
 593
 594 /*
 595  * tar_options()
 596  *      look at the user specified flags. set globals as required and check if
 597  *      the user specified a legal set of flags. If not, complain and exit
 598  */
 599
 600 static void
 601 tar_options(int argc, char **argv)
 602 {
 603         int c;
 604         int fstdin = 0;
 605         int Oflag = 0;
 606         int nincfiles = 0;
 607         int incfiles_max = 0;
 608         struct incfile {
 609                 char *file;
 610                 char *dir;
 611         };
 612         struct incfile *incfiles = NULL;
 613
 614         /*
 615          * Set default values.
 616          */
 617         rmleadslash = 1;
 618
 619         /*
 620          * process option flags
 621          */
 622         while ((c = getoldopt(argc, argv,
 623             "b:cef:hjmopqruts:vwxyzBC:HI:LOPXZ014578")) != -1) {
 624                 switch(c) {
 625                 case 'b':
 626                         /*
 627                          * specify blocksize in 512-byte blocks
 628                          */
 629                         if ((wrblksz = (int)str_offt(optarg)) <= 0) {
 630                                 paxwarn(1, "Invalid block size %s", optarg);
 631                                 tar_usage();
 632                         }
 633                         wrblksz *= 512;         /* XXX - check for int oflow */
 634                         break;
 635                 case 'c':
 636                         /*
 637                          * create an archive
 638                          */
 639                         tar_set_action(ARCHIVE);
 640                         break;
 641                 case 'e':
 642                         /*
 643                          * stop after first error
 644                          */
 645                         maxflt = 0;
 646                         break;
 647                 case 'f':
 648                         /*
 649                          * filename where the archive is stored
 650                          */
 651                         if ((optarg[0] == '-') && (optarg[1]== '\0')) {
 652                                 /*
 653                                  * treat a - as stdin
 654                                  */
 655                                 fstdin = 1;
 656                                 arcname = NULL;
 657                                 break;
 658                         }
 659                         fstdin = 0;
 660                         arcname = optarg;
 661                         break;
 662                 case 'h':
 663                         /*
 664                          * follow symlinks
 665                          */
 666                         Lflag = 1;
 667                         break;
 668                 case 'j':
 669                 case 'y':
 670                         /*
 671                          * use bzip2.  Non standard option.
 672                          */
 673                         gzip_program = BZIP2_CMD;
 674                         break;
 675                 case 'm':
 676                         /*
 677                          * do not preserve modification time
 678                          */
 679                         pmtime = 0;
 680                         break;
 681                 case 'o':
 682                         if (opt_add("write_opt=nodir") < 0)
 683                                 tar_usage();
 684                 case 'O':
 685                         Oflag = 1;
 686                         break;
 687                 case 'p':
 688                         /*
 689                          * preserve uid/gid and file mode, regardless of umask
 690                          */
 691                         pmode = 1;
 692                         pids = 1;
 693                         break;
 694                 case 'q':
 695                         /*
 696                          * select first match for a pattern only
 697                          */
 698                         nflag = 1;
 699                         break;
 700                 case 'r':
 701                 case 'u':
 702                         /*
 703                          * append to the archive
 704                          */
 705                         tar_set_action(APPND);
 706                         break;
 707                 case 's':
 708                         /*
 709                          * file name substitution name pattern
 710                          */
 711                         if (rep_add(optarg) < 0) {
 712                                 tar_usage();
 713                                 break;
 714                         }
 715                         break;
 716                 case 't':
 717                         /*
 718                          * list contents of the tape
 719                          */
 720                         tar_set_action(LIST);
 721                         break;
 722                 case 'v':
 723                         /*
 724                          * verbose operation mode
 725                          */
 726                         vflag++;
 727                         break;
 728                 case 'w':
 729                         /*
 730                          * interactive file rename
 731                          */
 732                         iflag = 1;
 733                         break;
 734                 case 'x':
 735                         /*
 736                          * extract an archive, preserving mode,
 737                          * and mtime if possible.
 738                          */
 739                         tar_set_action(EXTRACT);
 740                         pmtime = 1;
 741                         break;
 742                 case 'z':
 743                         /*
 744                          * use gzip.  Non standard option.
 745                          */
 746                         gzip_program = GZIP_CMD;
 747                         break;
 748                 case 'B':
 749                         /*
 750                          * Nothing to do here, this is pax default
 751                          */
 752                         break;
 753                 case 'C':
 754                         chdname = optarg;
 755                         break;
 756                 case 'H':
 757                         /*
 758                          * follow command line symlinks only
 759                          */
 760                         Hflag = 1;
 761                         break;
 762                 case 'I':
 763                         if (++nincfiles > incfiles_max) {
 764                                 incfiles_max = nincfiles + 3;
 765                                 incfiles = realloc(incfiles,
 766                                     sizeof(*incfiles) * incfiles_max);
 767                                 if (incfiles == NULL) {
 768                                         paxwarn(0, "Unable to allocate space "
 769                                             "for option list");
 770                                         exit(1);
 771                                 }
 772                         }
 773                         incfiles[nincfiles - 1].file = optarg;
 774                         incfiles[nincfiles - 1].dir = chdname;
 775                         break;
 776                 case 'L':
 777                         /*
 778                          * follow symlinks
 779                          */
 780                         Lflag = 1;
 781                         break;
 782                 case 'P':
 783                         /*
 784                          * do not remove leading '/' from pathnames
 785                          */
 786                         rmleadslash = 0;
 787                         break;
 788                 case 'X':
 789                         /*
 790                          * do not pass over mount points in the file system
 791                          */
 792                         Xflag = 1;
 793                         break;
 794                 case 'Z':
 795                         /*
 796                          * use compress.
 797                          */
 798                         gzip_program = COMPRESS_CMD;
 799                         break;
 800                 case '0':
 801                         arcname = DEV_0;
 802                         break;
 803                 case '1':
 804                         arcname = DEV_1;
 805                         break;
 806                 case '4':
 807                         arcname = DEV_4;
 808                         break;
 809                 case '5':
 810                         arcname = DEV_5;
 811                         break;
 812                 case '7':
 813                         arcname = DEV_7;
 814                         break;
 815                 case '8':
 816                         arcname = DEV_8;
 817                         break;
 818                 default:
 819                         tar_usage();
 820                         break;
 821                 }
 822         }
 823         argc -= optind;
 824         argv += optind;
 825
 826         /* Tar requires an action. */
 827         if (act == ERROR)
 828                 tar_usage();
 829
 830         /* Traditional tar behaviour (pax uses stderr unless in list mode) */
 831         if (fstdin == 1 && act == ARCHIVE)
 832                 listf = stderr;
 833         else
 834                 listf = stdout;
 835
 836         /* Traditional tar behaviour (pax wants to read file list from stdin) */
 837         if ((act == ARCHIVE || act == APPND) && argc == 0 && nincfiles == 0)
 838                 exit(0);
 839
 840         /*
 841          * if we are writing (ARCHIVE) specify tar, otherwise run like pax
 842          * (unless -o specified)
 843          */
 844         if (act == ARCHIVE || act == APPND)
 845                 frmt = &(fsub[Oflag ? F_OTAR : F_TAR]);
 846         else if (Oflag) {
 847                 paxwarn(1, "The -O/-o options are only valid when writing an archive");
 848                 tar_usage();            /* only valid when writing */
 849         }
 850
 851         /*
 852          * process the args as they are interpreted by the operation mode
 853          */
 854         switch (act) {
 855         case LIST:
 856         case EXTRACT:
 857         default:
 858                 {
 859                         int sawpat = 0;
 860                         char *file, *dir = NULL;
 861
 862                         while (nincfiles || *argv != NULL) {
 863                                 /*
 864                                  * If we queued up any include files,
 865                                  * pull them in now.  Otherwise, check
 866                                  * for -I and -C positional flags.
 867                                  * Anything else must be a file to
 868                                  * extract.
 869                                  */
 870                                 if (nincfiles) {
 871                                         file = incfiles->file;
 872                                         dir = incfiles->dir;
 873                                         incfiles++;
 874                                         nincfiles--;
 875                                 } else if (strcmp(*argv, "-I") == 0) {
 876                                         if (*++argv == NULL)
 877                                                 break;
 878                                         file = *argv++;
 879                                         dir = chdname;
 880                                 } else
 881                                         file = NULL;
 882                                 if (file != NULL) {
 883                                         FILE *fp;
 884                                         char *str;
 885
 886                                         if (strcmp(file, "-") == 0)
 887                                                 fp = stdin;
 888                                         else if ((fp = fopen(file, "r")) == NULL) {
 889                                                 paxwarn(1, "Unable to open file '%s' for read", file);
 890                                                 tar_usage();
 891                                         }
 892                                         while ((str = getline(fp)) != NULL) {
 893                                                 if (pat_add(str, dir) < 0)
 894                                                         tar_usage();
 895                                                 sawpat = 1;
 896                                         }
 897                                         if (strcmp(file, "-") != 0)
 898                                                 fclose(fp);
 899                                         if (getline_error) {
 900                                                 paxwarn(1, "Problem with file '%s'", file);
 901                                                 tar_usage();
 902                                         }
 903                                 } else if (strcmp(*argv, "-C") == 0) {
 904                                         if (*++argv == NULL)
 905                                                 break;
 906                                         chdname = *argv++;
 907                                 } else if (pat_add(*argv++, chdname) < 0)
 908                                         tar_usage();
 909                                 else
 910                                         sawpat = 1;
 911                         }
 912                         /*
 913                          * if patterns were added, we are doing chdir()
 914                          * on a file-by-file basis, else, just one
 915                          * global chdir (if any) after opening input.
 916                          */
 917                         if (sawpat > 0)
 918                                 chdname = NULL;
 919                 }
 920                 break;
 921         case ARCHIVE:
 922         case APPND:
 923                 if (chdname != NULL) {  /* initial chdir() */
 924                         if (ftree_add(chdname, 1) < 0)
 925                                 tar_usage();
 926                 }
 927
 928                 while (nincfiles || *argv != NULL) {
 929                         char *file, *dir = NULL;
 930
 931                         /*
 932                          * If we queued up any include files, pull them in
 933                          * now.  Otherwise, check for -I and -C positional
 934                          * flags.  Anything else must be a file to include
 935                          * in the archive.
 936                          */
 937                         if (nincfiles) {
 938                                 file = incfiles->file;
 939                                 dir = incfiles->dir;
 940                                 incfiles++;
 941                                 nincfiles--;
 942                         } else if (strcmp(*argv, "-I") == 0) {
 943                                 if (*++argv == NULL)
 944                                         break;
 945                                 file = *argv++;
 946                                 dir = NULL;
 947                         } else
 948                                 file = NULL;
 949                         if (file != NULL) {
 950                                 FILE *fp;
 951                                 char *str;
 952
 953                                 /* Set directory if needed */
 954                                 if (dir) {
 955                                         if (ftree_add(dir, 1) < 0)
 956                                                 tar_usage();
 957                                 }
 958
 959                                 if (strcmp(file, "-") == 0)
 960                                         fp = stdin;
 961                                 else if ((fp = fopen(file, "r")) == NULL) {
 962                                         paxwarn(1, "Unable to open file '%s' for read", file);
 963                                         tar_usage();
 964                                 }
 965                                 while ((str = getline(fp)) != NULL) {
 966                                         if (ftree_add(str, 0) < 0)
 967                                                 tar_usage();
 968                                 }
 969                                 if (strcmp(file, "-") != 0)
 970                                         fclose(fp);
 971                                 if (getline_error) {
 972                                         paxwarn(1, "Problem with file '%s'",
 973                                             file);
 974                                         tar_usage();
 975                                 }
 976                         } else if (strcmp(*argv, "-C") == 0) {
 977                                 if (*++argv == NULL)
 978                                         break;
 979                                 if (ftree_add(*argv++, 1) < 0)
 980                                         tar_usage();
 981                         } else if (ftree_add(*argv++, 0) < 0)
 982                                 tar_usage();
 983                 }
 984                 /*
 985                  * no read errors allowed on updates/append operation!
 986                  */
 987                 maxflt = 0;
 988                 break;
 989         }
 990         if (!fstdin && ((arcname == NULL) || (*arcname == '\0'))) {
 991                 arcname = getenv("TAPE");
 992                 if ((arcname == NULL) || (*arcname == '\0'))
 993                         arcname = _PATH_DEFTAPE;
 994         }
 995 }
 996
 997 static int
 998 mkpath(char *path)
 999 {
1000         struct stat sb;
1001         char *slash;
1002         int done = 0;
1003
1004         slash = path;
1005
1006         while (!done) {
1007                 slash += strspn(slash, "/");
1008                 slash += strcspn(slash, "/");
1009
1010                 done = (*slash == '\0');
1011                 *slash = '\0';
1012
1013                 if (stat(path, &sb)) {
1014                         if (errno != ENOENT || mkdir(path, 0777)) {
1015                                 paxwarn(1, "%s", path);
1016                                 return (-1);
1017                         }
1018                 } else if (!S_ISDIR(sb.st_mode)) {
1019                         syswarn(1, ENOTDIR, "%s", path);
1020                         return (-1);
1021                 }
1022
1023                 if (!done)
1024                         *slash = '/';
1025         }
1026
1027         return (0);
1028 }
1029 /*
1030  * cpio_options()
1031  *      look at the user specified flags. set globals as required and check if
1032  *      the user specified a legal set of flags. If not, complain and exit
1033  */
1034
1035 static void
1036 cpio_options(int argc, char **argv)
1037 {
1038         int c;
1039         size_t i;
1040         char *str;
1041         FSUB tmp;
1042         FILE *fp;
1043
1044         kflag = 1;
1045         pids = 1;
1046         pmode = 1;
1047         pmtime = 0;
1048         arcname = NULL;
1049         dflag = 1;
1050         act = -1;
1051         nodirs = 1;
1052         while ((c=getopt(argc,argv,"abcdfiklmoprstuvzABC:E:F:H:I:LO:SZ6")) != -1)
1053                 switch (c) {
1054                         case 'a':
1055                                 /*
1056                                  * preserve access time on files read
1057                                  */
1058                                 tflag = 1;
1059                                 break;
1060                         case 'b':
1061                                 /*
1062                                  * swap bytes and half-words when reading data
1063                                  */
1064                                 break;
1065                         case 'c':
1066                                 /*
1067                                  * ASCII cpio header
1068                                  */
1069                                 frmt = &(fsub[F_ACPIO]);
1070                                 break;
1071                         case 'd':
1072                                 /*
1073                                  * create directories as needed
1074                                  */
1075                                 nodirs = 0;
1076                                 break;
1077                         case 'f':
1078                                 /*
1079                                  * invert meaning of pattern list
1080                                  */
1081                                 cflag = 1;
1082                                 break;
1083                         case 'i':
1084                                 /*
1085                                  * restore an archive
1086                                  */
1087                                 act = EXTRACT;
1088                                 break;
1089                         case 'k':
1090                                 break;
1091                         case 'l':
1092                                 /*
1093                                  * use links instead of copies when possible
1094                                  */
1095                                 lflag = 1;
1096                                 break;
1097                         case 'm':
1098                                 /*
1099                                  * preserve modification time
1100                                  */
1101                                 pmtime = 1;
1102                                 break;
1103                         case 'o':
1104                                 /*
1105                                  * create an archive
1106                                  */
1107                                 act = ARCHIVE;
1108                                 frmt = &(fsub[F_CPIO]);
1109                                 break;
1110                         case 'p':
1111                                 /*
1112                                  * copy-pass mode
1113                                  */
1114                                 act = COPY;
1115                                 break;
1116                         case 'r':
1117                                 /*
1118                                  * interactively rename files
1119                                  */
1120                                 iflag = 1;
1121                                 break;
1122                         case 's':
1123                                 /*
1124                                  * swap bytes after reading data
1125                                  */
1126                                 break;
1127                         case 't':
1128                                 /*
1129                                  * list contents of archive
1130                                  */
1131                                 act = LIST;
1132                                 listf = stdout;
1133                                 break;
1134                         case 'u':
1135                                 /*
1136                                  * replace newer files
1137                                  */
1138                                 kflag = 0;
1139                                 break;
1140                         case 'v':
1141                                 /*
1142                                  * verbose operation mode
1143                                  */
1144                                 vflag = 1;
1145                                 break;
1146                         case 'z':
1147                                 /*
1148                                  * use gzip.  Non standard option.
1149                                  */
1150                                 gzip_program = GZIP_CMD;
1151                                 break;
1152                         case 'A':
1153                                 /*
1154                                  * append mode
1155                                  */
1156                                 act = APPND;
1157                                 break;
1158                         case 'B':
1159                                 /*
1160                                  * Use 5120 byte block size
1161                                  */
1162                                 wrblksz = 5120;
1163                                 break;
1164                         case 'C':
1165                                 /*
1166                                  * set block size in bytes
1167                                  */
1168                                 wrblksz = atoi(optarg);
1169                                 break;
1170                         case 'E':
1171                                 /*
1172                                  * file with patterns to extract or list
1173                                  */
1174                                 if ((fp = fopen(optarg, "r")) == NULL) {
1175                                         paxwarn(1, "Unable to open file '%s' for read", optarg);
1176                                         cpio_usage();
1177                                 }
1178                                 while ((str = getline(fp)) != NULL) {
1179                                         pat_add(str, NULL);
1180                                 }
1181                                 fclose(fp);
1182                                 if (getline_error) {
1183                                         paxwarn(1, "Problem with file '%s'", optarg);
1184                                         cpio_usage();
1185                                 }
1186                                 break;
1187                         case 'F':
1188                         case 'I':
1189                         case 'O':
1190                                 /*
1191                                  * filename where the archive is stored
1192                                  */
1193                                 if ((optarg[0] == '-') && (optarg[1]== '\0')) {
1194                                         /*
1195                                          * treat a - as stdin
1196                                          */
1197                                         arcname = NULL;
1198                                         break;
1199                                 }
1200                                 arcname = optarg;
1201                                 break;
1202                         case 'H':
1203                                 /*
1204                                  * specify an archive format on write
1205                                  */
1206                                 tmp.name = optarg;
1207                                 if ((frmt = (FSUB *)bsearch((void *)&tmp, (void *)fsub,
1208                                     sizeof(fsub)/sizeof(FSUB), sizeof(FSUB), c_frmt)) != NULL)
1209                                         break;
1210                                 paxwarn(1, "Unknown -H format: %s", optarg);
1211                                 (void)fputs("cpio: Known -H formats are:", stderr);
1212                                 for (i = 0; i < (sizeof(fsub)/sizeof(FSUB)); ++i)
1213                                         (void)fprintf(stderr, " %s", fsub[i].name);
1214                                 (void)fputs("\n\n", stderr);
1215                                 cpio_usage();
1216                                 break;
1217                         case 'L':
1218                                 /*
1219                                  * follow symbolic links
1220                                  */
1221                                 Lflag = 1;
1222                                 break;
1223                         case 'S':
1224                                 /*
1225                                  * swap halfwords after reading data
1226                                  */
1227                                 break;
1228                         case 'Z':
1229                                 /*
1230                                  * use compress.  Non standard option.
1231                                  */
1232                                 gzip_program = COMPRESS_CMD;
1233                                 break;
1234                         case '6':
1235                                 /*
1236                                  * process Version 6 cpio format
1237                                  */
1238                                 frmt = &(fsub[F_OCPIO]);
1239                                 break;
1240                         case '?':
1241                         default:
1242                                 cpio_usage();
1243                                 break;
1244                 }
1245         argc -= optind;
1246         argv += optind;
1247
1248         /*
1249          * process the args as they are interpreted by the operation mode
1250          */
1251         switch (act) {
1252                 case LIST:
1253                 case EXTRACT:
1254                         while (*argv != NULL)
1255                                 if (pat_add(*argv++, NULL) < 0)
1256                                         cpio_usage();
1257                         break;
1258                 case COPY:
1259                         if (*argv == NULL) {
1260                                 paxwarn(0, "Destination directory was not supplied");
1261                                 cpio_usage();
1262                         }
1263                         dirptr = *argv;
1264                         if (mkpath(dirptr) < 0)
1265                                 cpio_usage();
1266                         --argc;
1267                         ++argv;
1268                         /* FALLTHROUGH */
1269                 case ARCHIVE:
1270                 case APPND:
1271                         if (*argv != NULL)
1272                                 cpio_usage();
1273                         /*
1274                          * no read errors allowed on updates/append operation!
1275                          */
1276                         maxflt = 0;
1277                         while ((str = getline(stdin)) != NULL) {
1278                                 ftree_add(str, 0);
1279                         }
1280                         if (getline_error) {
1281                                 paxwarn(1, "Problem while reading stdin");
1282                                 cpio_usage();
1283                         }
1284                         break;
1285                 default:
1286                         cpio_usage();
1287                         break;
1288         }
1289 }
1290
1291 /*
1292  * printflg()
1293  *      print out those invalid flag sets found to the user
1294  */
1295
1296 static void
1297 printflg(unsigned int flg)
1298 {
1299         int nxt;
1300         int pos = 0;
1301
1302         (void)fprintf(stderr,"%s: Invalid combination of options:", argv0);
1303         while ((nxt = ffs(flg)) != 0) {
1304                 flg = flg >> nxt;
1305                 pos += nxt;
1306                 (void)fprintf(stderr, " -%c", flgch[pos-1]);
1307         }
1308         (void)putc('\n', stderr);
1309 }
1310
1311 /*
1312  * c_frmt()
1313  *      comparison routine used by bsearch to find the format specified
1314  *      by the user
1315  */
1316
1317 static int
1318 c_frmt(const void *a, const void *b)
1319 {
1320         return(strcmp(((const FSUB *)a)->name, ((const FSUB *)b)->name));
1321 }
1322
1323 /*
1324  * opt_next()
1325  *      called by format specific options routines to get each format specific
1326  *      flag and value specified with -o
1327  * Return:
1328  *      pointer to next OPLIST entry or NULL (end of list).
1329  */
1330
1331 OPLIST *
1332 opt_next(void)
1333 {
1334         OPLIST *opt;
1335
1336         if ((opt = ophead) != NULL)
1337                 ophead = ophead->fow;
1338         return(opt);
1339 }
1340
1341 /*
1342  * bad_opt()
1343  *      generic routine used to complain about a format specific options
1344  *      when the format does not support options.
1345  */
1346
1347 int
1348 bad_opt(void)
1349 {
1350         OPLIST *opt;
1351
1352         if (ophead == NULL)
1353                 return(0);
1354         /*
1355          * print all we were given
1356          */
1357         paxwarn(1,"These format options are not supported");
1358         while ((opt = opt_next()) != NULL)
1359                 (void)fprintf(stderr, "\t%s = %s\n", opt->name, opt->value);
1360         pax_usage();
1361         return(0);
1362 }
1363
1364 /*
1365  * opt_add()
1366  *      breaks the value supplied to -o into an option name and value. Options
1367  *      are given to -o in the form -o name-value,name=value
1368  *      multiple -o may be specified.
1369  * Return:
1370  *      0 if format in name=value format, -1 if -o is passed junk.
1371  */
1372
1373 int
1374 opt_add(const char *str)
1375 {
1376         OPLIST *opt;
1377         char *frpt;
1378         char *pt;
1379         char *endpt;
1380         char *lstr;
1381
1382         if ((str == NULL) || (*str == '\0')) {
1383                 paxwarn(0, "Invalid option name");
1384                 return(-1);
1385         }
1386         if ((lstr = strdup(str)) == NULL) {
1387                 paxwarn(0, "Unable to allocate space for option list");
1388                 return(-1);
1389         }
1390         frpt = endpt = lstr;
1391
1392         /*
1393          * break into name and values pieces and stuff each one into a
1394          * OPLIST structure. When we know the format, the format specific
1395          * option function will go through this list
1396          */
1397         while ((frpt != NULL) && (*frpt != '\0')) {
1398                 if ((endpt = strchr(frpt, ',')) != NULL)
1399                         *endpt = '\0';
1400                 if ((pt = strchr(frpt, '=')) == NULL) {
1401                         paxwarn(0, "Invalid options format");
1402                         free(lstr);
1403                         return(-1);
1404                 }
1405                 if ((opt = (OPLIST *)malloc(sizeof(OPLIST))) == NULL) {
1406                         paxwarn(0, "Unable to allocate space for option list");
1407                         free(lstr);
1408                         return(-1);
1409                 }
1410                 *pt++ = '\0';
1411                 opt->name = frpt;
1412                 opt->value = pt;
1413                 opt->fow = NULL;
1414                 if (endpt != NULL)
1415                         frpt = endpt + 1;
1416                 else
1417                         frpt = NULL;
1418                 if (ophead == NULL) {
1419                         optail = ophead = opt;
1420                         continue;
1421                 }
1422                 optail->fow = opt;
1423                 optail = opt;
1424         }
1425         return(0);
1426 }
1427
1428 /*
1429  * str_offt()
1430  *      Convert an expression of the following forms to an off_t > 0.
1431  *      1) A positive decimal number.
1432  *      2) A positive decimal number followed by a b (mult by 512).
1433  *      3) A positive decimal number followed by a k (mult by 1024).
1434  *      4) A positive decimal number followed by a m (mult by 512).
1435  *      5) A positive decimal number followed by a w (mult by sizeof int)
1436  *      6) Two or more positive decimal numbers (with/without k,b or w).
1437  *         separated by x (also * for backwards compatibility), specifying
1438  *         the product of the indicated values.
1439  * Return:
1440  *      0 for an error, a positive value o.w.
1441  */
1442
1443 static off_t
1444 str_offt(char *val)
1445 {
1446         char *expr;
1447         off_t num, t;
1448
1449 #       ifdef NET2_STAT
1450         num = strtol(val, &expr, 0);
1451         if ((num == LONG_MAX) || (num <= 0) || (expr == val))
1452 #       else
1453         num = strtoq(val, &expr, 0);
1454         if ((num == QUAD_MAX) || (num <= 0) || (expr == val))
1455 #       endif
1456                 return(0);
1457
1458         switch(*expr) {
1459         case 'b':
1460                 t = num;
1461                 num *= 512;
1462                 if (t > num)
1463                         return(0);
1464                 ++expr;
1465                 break;
1466         case 'k':
1467                 t = num;
1468                 num *= 1024;
1469                 if (t > num)
1470                         return(0);
1471                 ++expr;
1472                 break;
1473         case 'm':
1474                 t = num;
1475                 num *= 1048576;
1476                 if (t > num)
1477                         return(0);
1478                 ++expr;
1479                 break;
1480         case 'w':
1481                 t = num;
1482                 num *= sizeof(int);
1483                 if (t > num)
1484                         return(0);
1485                 ++expr;
1486                 break;
1487         }
1488
1489         switch(*expr) {
1490                 case '\0':
1491                         break;
1492                 case '*':
1493                 case 'x':
1494                         t = num;
1495                         num *= str_offt(expr + 1);
1496                         if (t > num)
1497                                 return(0);
1498                         break;
1499                 default:
1500                         return(0);
1501         }
1502         return(num);
1503 }
1504
1505 char *fgetln(FILE *f, size_t *);
1506
1507 static char *
1508 getline(FILE *f)
1509 {
1510         char *name, *temp;
1511         size_t len;
1512
1513         name = fgetln(f, &len);
1514         if (!name) {
1515                 getline_error = ferror(f) ? GETLINE_FILE_CORRUPT : 0;
1516                 return(0);
1517         }
1518         if (name[len-1] != '\n')
1519                 len++;
1520         temp = malloc(len);
1521         if (!temp) {
1522                 getline_error = GETLINE_OUT_OF_MEM;
1523                 return(0);
1524         }
1525         memcpy(temp, name, len-1);
1526         temp[len-1] = 0;
1527         return(temp);
1528 }
1529
1530 /*
1531  * no_op()
1532  *      for those option functions where the archive format has nothing to do.
1533  * Return:
1534  *      0
1535  */
1536
1537 static int
1538 no_op(void)
1539 {
1540         return(0);
1541 }
1542
1543 /*
1544  * pax_usage()
1545  *      print the usage summary to the user
1546  */
1547
1548 static void
1549 pax_usage(void)
1550 {
1551         (void)fputs("usage: pax [-cdnvz] [-E limit] [-f archive] ", stderr);
1552         (void)fputs("[-s replstr] ... [-U user] ...", stderr);
1553         (void)fputs("\n    [-G group] ... ", stderr);
1554         (void)fputs("[-T [from_date][,to_date]] ... ", stderr);
1555         (void)fputs("[pattern ...]\n", stderr);
1556         (void)fputs("       pax -r [-cdiknuvzDYZ] [-E limit] ", stderr);
1557         (void)fputs("[-f archive] [-o options] ... \n", stderr);
1558         (void)fputs("      [-p string] ... [-s replstr] ... ", stderr);
1559         (void)fputs("[-U user] ... [-G group] ...\n        ", stderr);
1560         (void)fputs("[-T [from_date][,to_date]] ... ", stderr);
1561         (void)fputs(" [pattern ...]\n", stderr);
1562         (void)fputs("       pax -w [-dituvzHLPX] [-b blocksize] ", stderr);
1563         (void)fputs("[ [-a] [-f archive] ] [-x format] \n", stderr);
1564         (void)fputs("      [-B bytes] [-s replstr] ... ", stderr);
1565         (void)fputs("[-o options] ... [-U user] ...", stderr);
1566         (void)fputs("\n    [-G group] ... ", stderr);
1567         (void)fputs("[-T [from_date][,to_date][/[c][m]]] ... ", stderr);
1568         (void)fputs("[file ...]\n", stderr);
1569         (void)fputs("       pax -r -w [-diklntuvDHLPXYZ] ", stderr);
1570         (void)fputs("[-p string] ... [-s replstr] ...", stderr);
1571         (void)fputs("\n    [-U user] ... [-G group] ... ", stderr);
1572         (void)fputs("[-T [from_date][,to_date][/[c][m]]] ... ", stderr);
1573         (void)fputs("\n    [file ...] directory\n", stderr);
1574         exit(1);
1575 }
1576
1577 /*
1578  * tar_usage()
1579  *      print the usage summary to the user
1580  */
1581
1582 static void
1583 tar_usage(void)
1584 {
1585         (void)fputs("usage: tar [-]{crtux}[-befhjmopqsvwyzHLOPXZ014578] [blocksize] ",
1586                  stderr);
1587         (void)fputs("[archive] [replstr] [-C directory] [-I file] [file ...]\n",
1588             stderr);
1589         exit(1);
1590 }
1591
1592 /*
1593  * cpio_usage()
1594  *      print the usage summary to the user
1595  */
1596
1597 static void
1598 cpio_usage(void)
1599 {
1600         (void)fputs("usage: cpio -o [-aABcLvVzZ] [-C bytes] [-H format] [-O archive]\n", stderr);
1601         (void)fputs("               [-F archive] < name-list [> archive]\n", stderr);
1602         (void)fputs("       cpio -i [-bBcdfmnrsStuvVzZ6] [-C bytes] [-E file] [-H format]\n", stderr);
1603         (void)fputs("               [-I archive] [-F archive] [pattern...] [< archive]\n", stderr);
1604         (void)fputs("       cpio -p [-adlLmuvV] destination-directory < name-list\n", stderr);
1605         exit(1);
1606 }