src/lharc.c

   1 /* ------------------------------------------------------------------------ */
   2 /* LHa for UNIX                                                                                                                         */
   3 /*                              lharc.c -- append to archive                                                            */
   4 /*                                                                                                                                                      */
   5 /*              Copyright (C) MCMLXXXIX Yooichi.Tagawa                                                          */
   6 /*              Modified                        Nobutaka Watazaki                                                       */
   7 /*                                                      Thanks to H.Yoshizaki. (MS-DOS LHarc)                   */
   8 /*                                                                                                                                                      */
   9 /*  Ver. 0.00  Original                                                 1988.05.23  Y.Tagawa            */
  10 /*  Ver. 0.01  Alpha Version (for 4.2BSD)               1989.05.28  Y.Tagawa            */
  11 /*  Ver. 0.02  Alpha Version Rel.2                              1989.05.29  Y.Tagawa            */
  12 /*  Ver. 0.03  Release #3  Beta Version                 1989.07.02  Y.Tagawa            */
  13 /*  Ver. 0.03a Debug                                                    1989.07.03  Y.Tagawa            */
  14 /*  Ver. 0.03b Modified                                                 1989.07.13  Y.Tagawa            */
  15 /*  Ver. 0.03c Debug (Thanks to void@rena.dit.junet)                                            */
  16 /*                                                                                              1989.08.09  Y.Tagawa            */
  17 /*  Ver. 0.03d Modified (quiet and verbose)             1989.09.14  Y.Tagawa            */
  18 /*  V1.00  Fixed                                                                1989.09.22  Y.Tagawa            */
  19 /*  V1.01  Bug Fixed                                                    1989.12.25  Y.Tagawa            */
  20 /*                                                                                                                                                      */
  21 /*  DOS-Version Original LHx V C2.01            (C) H.Yohizaki                                  */
  22 /*                                                                                                                                                      */
  23 /*  V2.00  UNIX Lharc + DOS LHx -> OSK LHx              1990.11.01  Momozou                     */
  24 /*  V2.01  Minor Modified                                               1990.11.24  Momozou                     */
  25 /*                                                                                                                                                      */
  26 /*  Ver. 0.02  LHx for UNIX                                             1991.11.18  M.Oki                       */
  27 /*  Ver. 0.03  LHa for UNIX                                             1991.12.17  M.Oki                       */
  28 /*  Ver. 0.04  LHa for UNIX     beta version            1992.01.20  M.Oki                       */
  29 /*  Ver. 1.00  LHa for UNIX     Fixed                           1992.03.19  M.Oki                       */
  30 /*                                                                                                                                                      */
  31 /*  Ver. 1.10  for Symbolic Link                                1993.06.25  N.Watazaki          */
  32 /*  Ver. 1.11  for Symbolic Link Bug Fixed              1993.08.18  N.Watazaki          */
  33 /*  Ver. 1.12  for File Date Check                              1993.10.28  N.Watazaki          */
  34 /*  Ver. 1.13  Bug Fixed (Idicator calcurate)   1994.02.21  N.Watazaki          */
  35 /*  Ver. 1.13a Bug Fixed (Sym. Link delete)             1994.03.11  N.Watazaki          */
  36 /*      Ver. 1.13b Bug Fixed (Sym. Link delete)         1994.07.29  N.Watazaki          */
  37 /*      Ver. 1.14  Source All chagned                           1995.01.14      N.Watazaki              */
  38 /*      Ver. 1.14b,c  Bug Fixed                     1996.03.07  t.okamoto               */
  39 /*  Ver. 1.14d Version up                       1997.01.12  t.okamoto       */
  40 /*  Ver. 1.14g Bug Fixed                        2000.05.06  t.okamoto       */
  41 /*  Ver. 1.14i Modified                         2000.10.06  t.okamoto       */
  42 /* ------------------------------------------------------------------------ */
  43 #define LHA_MAIN_SRC
  44
  45 #include "lha.h"
  46
  47 #include <stdarg.h>
  48
  49 /* ------------------------------------------------------------------------ */
  50 /*                                                              PROGRAM                                                                         */
  51 /* ------------------------------------------------------------------------ */
  52 static int      cmd = CMD_UNKNOWN;
  53
  54 /* 1996.8.13 t.okamoto */
  55 #if 0
  56 char          **cmd_filev;
  57 int             cmd_filec;
  58
  59 char           *archive_name;
  60 char            temporary_name[FILENAME_LENGTH];
  61 char            backup_archive_name[FILENAME_LENGTH];
  62 #endif
  63
  64 /* static functions */
  65 static void     sort_files();
  66 static void             print_version();
  67
  68 char                *extract_directory = NULL;
  69 char              **xfilev;
  70 int             xfilec = 257;
  71
  72 /* 1996.8.13 t.okamoto */
  73 #if 0
  74 char           *writting_filename;
  75 char           *reading_filename;
  76
  77 int             archive_file_mode;
  78 int             archive_file_gid;
  79 #endif
  80 /* ------------------------------------------------------------------------ */
  81 static void
  82 init_variable()         /* Added N.Watazaki */
  83 {
  84 /* options */
  85         quiet                   = FALSE;
  86         text_mode               = FALSE;
  87         verbose                 = FALSE;
  88         noexec                  = FALSE;        /* debugging option */
  89         force                   = FALSE;
  90         prof                    = FALSE;
  91
  92         compress_method = DEFAULT_LZHUFF_METHOD; /* defined in config.h */
  93
  94         header_level    = HEADER_LEVEL1;
  95         quiet_mode              = 0;
  96
  97 #ifdef EUC
  98         euc_mode                = FALSE;
  99 #endif
 100
 101 /* view command flags */
 102         verbose_listing = FALSE;
 103
 104 /* extract command flags */
 105         output_to_stdout = FALSE;
 106
 107 /* append command flags */
 108         new_archive                     = FALSE;
 109         update_if_newer         = FALSE;
 110         delete_after_append = FALSE;
 111         generic_format          = FALSE;
 112
 113         remove_temporary_at_error                               = FALSE;
 114         recover_archive_when_interrupt                  = FALSE;
 115         remove_extracting_file_when_interrupt   = FALSE;
 116         get_filename_from_stdin                                 = FALSE;
 117         ignore_directory                                                = FALSE;
 118         verify_mode                                                             = FALSE;
 119
 120         noconvertcase                                                   = FALSE;
 121
 122         extract_directory = NULL;
 123         xfilec = 257;
 124     temporary_fd = -1;
 125 }
 126
 127 /* ------------------------------------------------------------------------ */
 128 /* NOTES :                      Text File Format                                                                                */
 129 /* GENERATOR            NewLine                                                                                                 */
 130 /* [generic]            0D 0A                                                                                                   */
 131 /* [MS-DOS]                     0D 0A                                                                                                   */
 132 /* [OS9][MacOS]         0D                                                                                                              */
 133 /* [UNIX]                       0A                                                                                                              */
 134 /* ------------------------------------------------------------------------ */
 135 static void
 136 print_tiny_usage_and_exit()
 137 {
 138         fprintf(stderr, "\
 139 LHarc    for UNIX  V 1.02  Copyright(C) 1989  Y.Tagawa\n\
 140 LHx      for MSDOS V C2.01 Copyright(C) 1990  H.Yoshizaki\n\
 141 LHx(arc) for OSK   V 2.01  Modified     1990  Momozou\n\
 142 LHa      for UNIX  V 1.00  Copyright(C) 1992  Masaru Oki\n\
 143 LHa      for UNIX  V 1.14  Modified     1995  Nobutaka Watazaki\n\
 144 LHa      for UNIX  V 1.14i Modified     2000  Tsugio Okamoto\n\
 145                            Autoconfiscated 2001,2002 Koji Arai\n\
 146 ");
 147         fprintf(stderr, "\
 148 usage: lha [-]{axelvudmcp[q[num]][vnfodizg012]}[w=<dir>] archive_file [file...]\n\
 149 commands:                           options:\n\
 150  a   Add(or replace) to archive      q{num} quiet (num:quiet mode)\n\
 151  x,e EXtract from archive            v  verbose\n\
 152  l,v List / Verbose List             n  not execute\n\
 153  u   Update newer files to archive   f  force (over write at extract)\n\
 154  d   Delete from archive             t  FILES are TEXT file\n");
 155 #ifdef SUPPORT_LH7
 156         fprintf(stderr, "\
 157  m   Move to archive (means 'ad')    o[567] compression method (a/u)\n\
 158 ");
 159 #endif
 160 #ifndef SUPPORT_LH7
 161         fprintf(stderr, "\
 162  m   Move to archive (means 'ad')    o  use LHarc compatible method (a/u)\n\
 163 ");
 164 #endif
 165         fprintf(stderr, "\
 166  c   re-Construct new archive        w=<dir> specify extract directory (a/u/m/x/e)\n\
 167  p   Print to STDOUT from archive    d  delete FILES after (a/u/c)\n\
 168  t   Test file CRC in archive        i  ignore directory path (x/e)\n\
 169                                      z  files not compress (a/u)\n\
 170                                      g  Generic format (for compatibility)\n\
 171                                         or not convert case when extracting\n\
 172                                      0/1/2 header level (a/u)\n\
 173 ");
 174 #ifdef EUC
 175         fprintf(stderr, "\
 176                                      e  TEXT code convert from/to EUC\n\
 177 ");
 178 #endif
 179         exit(1);
 180 }
 181
 182 /* ------------------------------------------------------------------------ */
 183 int
 184 main(argc, argv)
 185         int             argc;
 186         char           *argv[];
 187 {
 188         char           *p, inpbuf[256];
 189
 190         int i;
 191         int  ac;
 192         char **av, *m;
 193
 194         init_variable();                /* Added N.Watazaki */
 195
 196         ac = argc;
 197         av = (char **)xmalloc( sizeof(char*)*argc );
 198         for (i=0; i<argc; i++) {
 199         av[i] = xstrdup( argv[i] );
 200         }
 201
 202         if (ac < 2 || strcmp(av[1], "--help") == 0)
 203                 print_tiny_usage_and_exit();
 204
 205         if (strcmp(av[1], "--version") == 0) {
 206                 print_version();
 207                 exit(1);
 208         }
 209
 210         if (ac < 3) {
 211                 cmd = CMD_LIST;
 212                 av--; /* argv--; */ /* 1999.7.18 */
 213                 ac++; /* argc++; */
 214                 goto work;
 215         }
 216
 217         m = av[1];
 218
 219         if (m[0] == '-')
 220                 m++;
 221         /* commands */
 222         switch (*m) {
 223         case 'x':
 224         case 'e':
 225                 cmd = CMD_EXTRACT;
 226                 break;
 227
 228         case 'p':
 229                 output_to_stdout = TRUE;
 230                 cmd = CMD_EXTRACT;
 231                 break;
 232
 233         case 'c':
 234                 new_archive = TRUE;
 235                 cmd = CMD_ADD;
 236                 break;
 237
 238         case 'a':
 239                 cmd = CMD_ADD;
 240                 break;
 241
 242         case 'd':
 243                 cmd = CMD_DELETE;
 244                 break;
 245
 246         case 'u':
 247                 update_if_newer = TRUE;
 248                 cmd = CMD_ADD;
 249                 break;
 250
 251         case 'm':
 252                 delete_after_append = TRUE;
 253                 cmd = CMD_ADD;
 254                 break;
 255
 256         case 'v':
 257                 verbose_listing = TRUE;
 258                 cmd = CMD_LIST;
 259                 break;
 260
 261         case 'l':
 262                 cmd = CMD_LIST;
 263                 break;
 264
 265         case 't':
 266                 cmd = CMD_EXTRACT;
 267                 verify_mode = TRUE;
 268                 break;
 269
 270         default:
 271                 print_tiny_usage_and_exit();
 272
 273         }
 274
 275         /* options */
 276         /* p = &argv[1][1]; */
 277         p = m+1;
 278         while ( *p != 0 ) {
 279                 switch ((*p++)) {
 280                 case 'q':
 281                         switch (*p) {
 282                         case '0':           /* no quiet */
 283                         case '1':           /* no use the incremental indicator */
 284                                 quiet_mode = *p - '0';
 285                                 ++p;
 286                                 break;
 287                         case '2':           /* no output */
 288                                 ++p;
 289                 /* fall through */
 290                         default:
 291                 /* In quiet mode, no confirm to overwrite */
 292                 force = TRUE;
 293                                 quiet = TRUE;
 294                                 break;
 295                         }
 296             break;
 297                 case 'f':
 298                         force = TRUE;
 299                         break;
 300                 case 'p':
 301                         prof = TRUE;
 302                         break;
 303                 case 'v':
 304                         verbose = TRUE;
 305                         break;
 306                 case 't':
 307                         text_mode = TRUE;
 308                         break;
 309 #ifdef EUC
 310                 case 'e':
 311                         text_mode = TRUE;
 312                         euc_mode = TRUE;
 313                         break;
 314 #endif
 315                 case 'n':
 316                         noexec = TRUE;
 317                         break;
 318                 case 'g':
 319                         generic_format = TRUE;
 320                         noconvertcase = TRUE;
 321                         header_level = 0;
 322                         break;
 323                 case 'd':
 324                         delete_after_append = TRUE;
 325                         break;
 326                 case 'o':
 327                         switch (*p) {
 328                         case 0:
 329                                 compress_method = LZHUFF1_METHOD_NUM;
 330                                 header_level = 0;
 331                                 break;
 332                         case '5':
 333                                 compress_method = LZHUFF5_METHOD_NUM;
 334                                 p++;
 335                                 break;
 336 #ifdef SUPPORT_LH7
 337                         case '6':
 338                                 compress_method = LZHUFF6_METHOD_NUM;
 339                                 p++;
 340                                 break;
 341                         case '7':
 342                                 compress_method = LZHUFF7_METHOD_NUM;
 343                                 p++;
 344                                 break;
 345 #endif
 346                         default:
 347                                 error("invalid compression method 'o%c'", *p);
 348                                 exit(1);
 349                         }
 350                         break;
 351                 case 'z':
 352                         compress_method = LZHUFF0_METHOD_NUM;   /* Changed N.Watazaki */
 353                         break;
 354                 case 'i':
 355                         ignore_directory = TRUE;
 356                         break;
 357                 case 'w':
 358                         if (*p == '=')
 359                                 p++;
 360                         extract_directory = p;
 361                         while (*p)
 362                                 p++;
 363                         break;
 364                 case '0':
 365                         header_level = HEADER_LEVEL0;
 366                         break;
 367                 case '1':
 368                         header_level = HEADER_LEVEL1;
 369                         break;
 370                 case '2':
 371                         header_level = HEADER_LEVEL2;
 372                         break;
 373                 default:
 374                         error("Unknown option '%c'.", p[-1]);
 375                         exit(1);
 376                 }
 377         }
 378
 379 work:
 380         /* archive file name */
 381         archive_name = av[2];
 382
 383         if (!strcmp(archive_name, "-")) {
 384                 if (!isatty(1) && cmd == CMD_ADD)
 385                         quiet = TRUE;
 386         }
 387 #if 0 /* Comment out; IMHO, this feature is useless. by Koji Arai */
 388         else {
 389                 if (ac == 3 && !isatty(0)) { /* 1999.7.18 */
 390             /* Bug(?) on MinGW, isatty() return 0 on Cygwin console.
 391                mingw-runtime-1.3-2 and Cygwin 1.3.10(0.51/3/2) on
 392                Win2000 */
 393             get_filename_from_stdin = TRUE;
 394                 }
 395         }
 396 #endif
 397
 398         /* target file name */
 399         if (get_filename_from_stdin) {
 400                 cmd_filec = 0;
 401                 xfilev = (char **)xmalloc(sizeof(char *) * xfilec);
 402                 while (fgets(inpbuf, sizeof(inpbuf), stdin)) {
 403                     /* delete \n if it exist */
 404                         i=0; p=inpbuf;
 405                         while (i < sizeof(inpbuf) && p != 0) {
 406                             if (*p == '\n') {
 407                                     *p = 0;
 408                                         break;
 409                                 }
 410                                 p++; i++;
 411                         }
 412
 413                         if (cmd_filec >= xfilec) {
 414                                 xfilec += 256;
 415                                 xfilev = (char **) xrealloc(xfilev,
 416                                                    sizeof(char *) * xfilec);
 417                         }
 418                         if (strlen(inpbuf) < 1)
 419                                 continue;
 420                         xfilev[cmd_filec++] = xstrdup(inpbuf);
 421                 }
 422                 xfilev[cmd_filec] = NULL;
 423                 cmd_filev = xfilev;
 424         } else {
 425                 cmd_filec = ac - 3;
 426                 cmd_filev = av + 3;
 427         }
 428         sort_files();
 429
 430         /* make crc table */
 431         make_crctable();
 432
 433         switch (cmd) {
 434         case CMD_EXTRACT:
 435                 cmd_extract();
 436                 break;
 437         case CMD_ADD:
 438                 cmd_add();
 439                 break;
 440         case CMD_LIST:
 441                 cmd_list();
 442                 break;
 443         case CMD_DELETE:
 444                 cmd_delete();
 445                 break;
 446         }
 447
 448 #ifdef USE_PROF
 449         if (!prof)
 450                 exit(0);
 451 #endif
 452
 453         return 0;
 454 }
 455
 456
 457 /* ------------------------------------------------------------------------ */
 458 /* */
 459 /* ------------------------------------------------------------------------ */
 460
 461 /* ------------------------------------------------------------------------ */
 462 static void
 463 print_version()
 464 {
 465         fprintf(stderr, "%s\n", LHA_VERSION);
 466 }
 467
 468 void
 469 message(char *fmt, ...)
 470 {
 471     int errno_sv = errno;
 472     va_list v;
 473
 474         fprintf(stderr, "LHa: ");
 475
 476     va_start(v, fmt);
 477     vfprintf(stderr, fmt, v);
 478     va_end(v);
 479
 480     fputs("\n", stderr);
 481
 482     errno =  errno_sv;
 483 }
 484
 485 /* ------------------------------------------------------------------------ */
 486 void
 487 warning(char *fmt, ...)
 488 {
 489     int errno_sv = errno;
 490     va_list v;
 491
 492         fprintf(stderr, "LHa: Warning: ");
 493
 494     va_start(v, fmt);
 495     vfprintf(stderr, fmt, v);
 496     va_end(v);
 497
 498     fputs("\n", stderr);
 499
 500     errno =  errno_sv;
 501 }
 502
 503 /* ------------------------------------------------------------------------ */
 504 void
 505 error(char *fmt, ...)
 506 {
 507     int errno_sv = errno;
 508     va_list v;
 509
 510         fprintf(stderr, "LHa: Error: ");
 511
 512     va_start(v, fmt);
 513     vfprintf(stderr, fmt, v);
 514     va_end(v);
 515
 516     fputs("\n", stderr);
 517
 518     errno =  errno_sv;
 519 }
 520
 521 void
 522 fatal_error(char *fmt, ...)
 523 {
 524     int errno_sv = errno;
 525     va_list v;
 526
 527         fprintf(stderr, "LHa: Fatal error: ");
 528
 529     va_start(v, fmt);
 530     vfprintf(stderr, fmt, v);
 531     va_end(v);
 532
 533         if (errno)
 534         fprintf(stderr, ": %s\n", strerror(errno_sv));
 535     else
 536         fputs("\n", stderr);
 537
 538     if (remove_temporary_at_error) {
 539         if (temporary_fd != -1)
 540             close(temporary_fd);
 541         unlink(temporary_name);
 542     }
 543
 544     exit(1);
 545 }
 546
 547 /* ------------------------------------------------------------------------ */
 548 void
 549 interrupt(signo)
 550         int             signo;
 551 {
 552         message("Interrupted");
 553
 554         if (temporary_fd != -1)
 555                 close(temporary_fd);
 556         unlink(temporary_name);
 557         if (recover_archive_when_interrupt)
 558                 rename(backup_archive_name, archive_name);
 559         if (remove_extracting_file_when_interrupt) {
 560                 message("Removing: %s", writting_filename);
 561                 unlink(writting_filename);
 562         }
 563         signal(SIGINT, SIG_DFL);
 564 #ifdef SIGHUP
 565         signal(SIGHUP, SIG_DFL);
 566 #endif
 567         kill(getpid(), signo);
 568 }
 569
 570 /* ------------------------------------------------------------------------ */
 571 /*                                                                                                                                                      */
 572 /* ------------------------------------------------------------------------ */
 573 static int
 574 sort_by_ascii(a, b)
 575         char          **a, **b;
 576 {
 577         register char  *p, *q;
 578         register int    c1, c2;
 579
 580         p = *a, q = *b;
 581         if (generic_format) {
 582                 do {
 583                         c1 = *(unsigned char *) p++;
 584                         c2 = *(unsigned char *) q++;
 585                         if (!c1 || !c2)
 586                                 break;
 587                         if (islower(c1))
 588                                 c1 = toupper(c1);
 589                         if (islower(c2))
 590                                 c2 = toupper(c2);
 591                 }
 592                 while (c1 == c2);
 593                 return c1 - c2;
 594         }
 595         else {
 596                 while (*p == *q && *p != '\0')
 597                         p++, q++;
 598                 return *(unsigned char *) p - *(unsigned char *) q;
 599         }
 600 }
 601
 602 /* ------------------------------------------------------------------------ */
 603 static void
 604 sort_files()
 605 {
 606         if (cmd_filec > 1)
 607                 qsort(cmd_filev, cmd_filec, sizeof(char *), sort_by_ascii);
 608 }
 609
 610 /* ------------------------------------------------------------------------ */
 611 char           *
 612 xmalloc(size)
 613         int             size;
 614 {
 615         char           *p = (char *) malloc(size);
 616         if (!p)
 617                 fatal_error("Not enough memory");
 618         return p;
 619 }
 620
 621 /* ------------------------------------------------------------------------ */
 622 char           *
 623 xrealloc(old, size)
 624         char           *old;
 625         int             size;
 626 {
 627         char           *p = (char *) realloc(old, size);
 628         if (!p)
 629                 fatal_error("Not enough memory");
 630         return p;
 631 }
 632
 633 char *
 634 xstrdup(str)
 635         char *str;
 636 {
 637     int len = strlen(str);
 638         char *p = (char *)xmalloc(len + 1);
 639     strcpy(p, str);
 640         return p;
 641 }
 642
 643 /* ------------------------------------------------------------------------ */
 644 /*                                                              STRING POOL                                                                     */
 645 /* ------------------------------------------------------------------------ */
 646 /*
 647   string pool :
 648         +-------------+-------------+------+-------------+----------+
 649         | N A M E 1 \0| N A M E 2 \0| .... | N A M E n \0|                      |
 650         +-------------+-------------+------+-------------+----------+
 651           ^ ^            ^ buffer+0 buffer+used buffer+size
 652
 653   vector :
 654         +---------------+---------------+------------- -----------------+
 655         | pointer to    | pointer to    | pointer to   ...  pointer to  |
 656         |  stringpool   |  N A M E 1    |  N A M E 2   ...   N A M E n  |
 657         +---------------+---------------+-------------     -------------+
 658         ^ malloc base      returned
 659 */
 660
 661 /* ------------------------------------------------------------------------ */
 662 void
 663 init_sp(sp)
 664         struct string_pool *sp;
 665 {
 666         sp->size = 1024 - 8;    /* any ( >=0 ) */
 667         sp->used = 0;
 668         sp->n = 0;
 669         sp->buffer = (char *) xmalloc(sp->size * sizeof(char));
 670 }
 671
 672 /* ------------------------------------------------------------------------ */
 673 void
 674 add_sp(sp, name, len)
 675         struct string_pool *sp;
 676         char           *name;   /* stored '\0' at tail */
 677         int             len;    /* include '\0' */
 678 {
 679         while (sp->used + len > sp->size) {
 680                 sp->size *= 2;
 681                 sp->buffer = (char *) xrealloc(sp->buffer, sp->size * sizeof(char));
 682         }
 683         bcopy(name, sp->buffer + sp->used, len);
 684         sp->used += len;
 685         sp->n++;
 686 }
 687
 688 /* ------------------------------------------------------------------------ */
 689 void
 690 finish_sp(sp, v_count, v_vector)
 691         register struct string_pool *sp;
 692         int            *v_count;
 693         char         ***v_vector;
 694 {
 695         int             i;
 696         register char  *p;
 697         char          **v;
 698
 699         v = (char **) xmalloc((sp->n + 1) * sizeof(char *));
 700         *v++ = sp->buffer;
 701         *v_vector = v;
 702         *v_count = sp->n;
 703         p = sp->buffer;
 704         for (i = sp->n; i; i--) {
 705                 *v++ = p;
 706                 if (i - 1)
 707                         p += strlen(p) + 1;
 708         }
 709 }
 710
 711 /* ------------------------------------------------------------------------ */
 712 void
 713 free_sp(vector)
 714         char          **vector;
 715 {
 716         vector--;
 717         free(*vector);          /* free string pool */
 718         free(vector);
 719 }
 720
 721
 722 /* ------------------------------------------------------------------------ */
 723 /*                                                      READ DIRECTORY FILES                                                    */
 724 /* ------------------------------------------------------------------------ */
 725 static          boolean
 726 include_path_p(path, name)
 727         char           *path, *name;
 728 {
 729         char           *n = name;
 730         while (*path)
 731                 if (*path++ != *n++)
 732                         return (path[-1] == '/' && *n == '\0');
 733         return (*n == '/' || (n != name && path[-1] == '/' && n[-1] == '/'));
 734 }
 735
 736 /* ------------------------------------------------------------------------ */
 737 void
 738 cleaning_files(v_filec, v_filev)
 739         int            *v_filec;
 740         char         ***v_filev;
 741 {
 742         char           *flags;
 743         struct stat     stbuf;
 744
 745         register char **filev = *v_filev;
 746         register int    filec = *v_filec;
 747         register char  *p;
 748         register int    i, j;
 749
 750         if (filec == 0)
 751                 return;
 752
 753         flags = xmalloc(filec * sizeof(char));
 754
 755         /* flags & 0x01 :       1: ignore */
 756         /* flags & 0x02 :       1: directory, 0 : regular file */
 757         /* flags & 0x04 :       1: need delete */
 758
 759
 760         for (i = 0; i < filec; i++)
 761                 if (GETSTAT(filev[i], &stbuf) < 0) {
 762                         flags[i] = 0x04;
 763                         warning("Cannot access \"%s\", ignored.", filev[i]);
 764                 }
 765                 else {
 766                         if (is_regularfile(&stbuf))
 767                                 flags[i] = 0x00;
 768                         else if (is_directory(&stbuf))
 769                                 flags[i] = 0x02;
 770 #ifdef S_IFLNK
 771                         else if (is_symlink(&stbuf)) /* t.okamoto */
 772                                 flags[i] = 0x00;
 773 #endif
 774                         else {
 775                                 flags[i] = 0x04;
 776                                 warning("Cannot archive \"%s\", ignored.", filev[i]);
 777                         }
 778                 }
 779
 780         for (i = 0; i < filec; i++) {
 781                 p = filev[i];
 782                 if ((flags[i] & 0x07) == 0x00) {        /* regular file, not
 783                                                          * deleted/ignored */
 784                         for (j = i + 1; j < filec; j++) {
 785                                 if ((flags[j] & 0x07) == 0x00) {        /* regular file, not
 786                                                                          * deleted/ignored */
 787                                         if (STREQU(p, filev[j]))
 788                                                 flags[j] = 0x04;        /* delete */
 789                                 }
 790                         }
 791                 }
 792                 else if ((flags[i] & 0x07) == 0x02) {   /* directory, not
 793                                                          * deleted/ignored */
 794                         for (j = i + 1; j < filec; j++) {
 795                                 if ((flags[j] & 0x07) == 0x00) {        /* regular file, not
 796                                                                          * deleted/ignored */
 797                                         if (include_path_p(p, filev[j]))
 798                                                 flags[j] = 0x04;        /* delete */
 799                                 }
 800                                 else if ((flags[j] & 0x07) == 0x02) {   /* directory, not
 801                                                                          * deleted/ignored */
 802                                         if (include_path_p(p, filev[j]))
 803                                                 flags[j] = 0x04;        /* delete */
 804                                 }
 805                         }
 806                 }
 807         }
 808
 809         for (i = j = 0; i < filec; i++) {
 810                 if ((flags[i] & 0x04) == 0) {
 811                         if (i != j)
 812                                 filev[j] = filev[i];
 813                         j++;
 814                 }
 815         }
 816         *v_filec = j;
 817
 818         free(flags);
 819 }
 820
 821 /* ------------------------------------------------------------------------ */
 822 #ifdef NODIRECTORY
 823 /* please need your imprementation */
 824 boolean
 825 find_files(name, v_filec, v_filev)
 826         char           *name;
 827         int            *v_filec;
 828         char         ***v_filev;
 829 {
 830         return FALSE;           /* DUMMY */
 831 }
 832
 833 /* ------------------------------------------------------------------------ */
 834 void
 835 free_files(filec, filev)
 836         int             filec;
 837         char          **filev;
 838 {
 839         /* do nothing */
 840 }
 841 /* ------------------------------------------------------------------------ */
 842 #else
 843 boolean
 844 find_files(name, v_filec, v_filev)
 845         char           *name;
 846         int            *v_filec;
 847         char         ***v_filev;
 848 {
 849         struct string_pool sp;
 850         char            newname[FILENAME_LENGTH];
 851         int             len, n;
 852         DIR            *dirp;
 853         DIRENTRY       *dp;
 854         struct stat     tmp_stbuf, arc_stbuf, fil_stbuf;
 855
 856         strcpy(newname, name);
 857         len = strlen(name);
 858         if (len > 0 && newname[len - 1] != '/')
 859                 newname[len++] = '/';
 860
 861         dirp = opendir(name);
 862         if (!dirp)
 863                 return FALSE;
 864
 865         init_sp(&sp);
 866
 867         GETSTAT(temporary_name, &tmp_stbuf);
 868         GETSTAT(archive_name, &arc_stbuf);
 869
 870         for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp)) {
 871                 n = NAMLEN(dp);
 872                 strncpy(newname + len, dp->d_name, n);
 873                 newname[len + n] = '\0';
 874                 if (GETSTAT(newname, &fil_stbuf) < 0)
 875                         continue;
 876 #if !defined(HAVE_STRUCT_STAT_ST_INO) || __MINGW32__
 877                 if ( dp->d_name[0] != '.' ||
 878                         (n != 1 &&
 879                          (dp->d_name[1] != '.' ||
 880                           n != 2))  ) {
 881                         add_sp(&sp, newname, len+n+1);
 882                 }
 883 #else
 884                 if ((dp->d_ino != 0) &&
 885                 /* exclude '.' and '..' */
 886                     ((dp->d_name[0] != '.') ||
 887                      ((n != 1) &&
 888                       ((dp->d_name[1] != '.') ||
 889                        (n != 2)))) &&
 890                     ((tmp_stbuf.st_dev != fil_stbuf.st_dev ||
 891                       tmp_stbuf.st_ino != fil_stbuf.st_ino) &&
 892                      (arc_stbuf.st_dev != fil_stbuf.st_dev ||
 893                       arc_stbuf.st_ino != fil_stbuf.st_ino))) {
 894                         add_sp(&sp, newname, len + n + 1);
 895                 }
 896 #endif
 897         }
 898         closedir(dirp);
 899         finish_sp(&sp, v_filec, v_filev);
 900         if (*v_filec > 1)
 901                 qsort(*v_filev, *v_filec, sizeof(char *), sort_by_ascii);
 902         cleaning_files(v_filec, v_filev);
 903
 904         return TRUE;
 905 }
 906
 907 /* ------------------------------------------------------------------------ */
 908 void
 909 free_files(filec, filev)
 910         int             filec;
 911         char          **filev;
 912 {
 913         free_sp(filev);
 914 }
 915 #endif
 916 /* ------------------------------------------------------------------------ */
 917 /*                                                                                                                                                      */
 918 /* ------------------------------------------------------------------------ */
 919 /* Build temporary file name and store to TEMPORARY_NAME */
 920 int
 921 build_temporary_name()
 922 {
 923 #ifdef TMP_FILENAME_TEMPLATE
 924         /* "/tmp/lhXXXXXX" etc. */
 925         if (extract_directory == NULL) {
 926                 strcpy(temporary_name, TMP_FILENAME_TEMPLATE);
 927         }
 928         else {
 929                 xsnprintf(temporary_name, sizeof(temporary_name),
 930                   "%s/lhXXXXXX", extract_directory);
 931         }
 932 #else
 933         char           *p, *s;
 934
 935         strcpy(temporary_name, archive_name);
 936         for (p = temporary_name, s = (char *) 0; *p; p++)
 937                 if (*p == '/')
 938                         s = p;
 939         strcpy((s ? s + 1 : temporary_name), "lhXXXXXX");
 940 #endif
 941 #ifdef HAVE_MKSTEMP
 942     {
 943         int old_umask, fd;
 944
 945         old_umask = umask(077);
 946         fd = mkstemp(temporary_name);
 947         umask(old_umask);
 948         return fd;
 949     }
 950 #else
 951     {
 952         int flags;
 953
 954         mktemp(temporary_name);
 955         flags = O_CREAT|O_EXCL|O_RDWR;
 956 #ifdef O_BINARY
 957         flags |= O_BINARY;
 958 #endif
 959         return open(temporary_name, flags, 0600);
 960     }
 961 #endif
 962 }
 963
 964 /* ------------------------------------------------------------------------ */
 965 static void
 966 modify_filename_extention(buffer, ext)
 967         char           *buffer;
 968         char           *ext;
 969 {
 970         register char  *p, *dot;
 971
 972         for (p = buffer, dot = (char *) 0; *p; p++) {
 973                 if (*p == '.')
 974                         dot = p;
 975                 else if (*p == '/')
 976                         dot = (char *) 0;
 977         }
 978
 979         if (dot)
 980                 p = dot;
 981
 982         strcpy(p, ext);
 983 }
 984
 985 /* ------------------------------------------------------------------------ */
 986 /* build backup file name */
 987 void
 988 build_backup_name(buffer, original)
 989         char           *buffer;
 990         char           *original;
 991 {
 992         strcpy(buffer, original);
 993         modify_filename_extention(buffer, BACKUPNAME_EXTENTION);        /* ".bak" */
 994 }
 995
 996 /* ------------------------------------------------------------------------ */
 997 void
 998 build_standard_archive_name(buffer, orginal)
 999         char           *buffer;
1000         char           *orginal;
1001 {
1002         strcpy(buffer, orginal);
1003         modify_filename_extention(buffer, ARCHIVENAME_EXTENTION);       /* ".lzh" */
1004 }
1005
1006 /* ------------------------------------------------------------------------ */
1007 /*                                                                                                                                                      */
1008 /* ------------------------------------------------------------------------ */
1009 boolean
1010 need_file(name)
1011         char           *name;
1012 {
1013         int             i;
1014
1015         if (cmd_filec == 0)
1016                 return TRUE;
1017
1018         for (i = 0; i < cmd_filec; i++) {
1019                 if (patmatch(cmd_filev[i], name, 0))
1020                         return TRUE;
1021         }
1022
1023         return FALSE;
1024 }
1025
1026 FILE           *
1027 xfopen(name, mode)
1028         char           *name, *mode;
1029 {
1030         FILE           *fp;
1031
1032         if ((fp = fopen(name, mode)) == NULL)
1033                 fatal_error("Cannot open file \"%s\"", name);
1034
1035         return fp;
1036 }
1037
1038 /* ------------------------------------------------------------------------ */
1039 /*                                                                                                                                                      */
1040 /* ------------------------------------------------------------------------ */
1041 static          boolean
1042 open_old_archive_1(name, v_fp)
1043         char           *name;
1044         FILE          **v_fp;
1045 {
1046         FILE           *fp;
1047         struct stat     stbuf;
1048
1049         if (stat(name, &stbuf) >= 0 &&
1050             is_regularfile(&stbuf) &&
1051             (fp = fopen(name, READ_BINARY)) != NULL) {
1052                 *v_fp = fp;
1053                 archive_file_gid = stbuf.st_gid;
1054                 archive_file_mode = stbuf.st_mode;
1055                 return TRUE;
1056         }
1057
1058         *v_fp = NULL;
1059         archive_file_gid = -1;
1060         return FALSE;
1061 }
1062
1063 /* ------------------------------------------------------------------------ */
1064 FILE           *
1065 open_old_archive()
1066 {
1067         FILE           *fp;
1068         char           *p;
1069     static char expanded_archive_name[FILENAME_LENGTH];
1070
1071         if (!strcmp(archive_name, "-")) {
1072                 if (cmd == CMD_EXTRACT || cmd == CMD_LIST) {
1073 #if __MINGW32__
1074             setmode(fileno(stdin), O_BINARY);
1075 #endif
1076                         return stdin;
1077         }
1078                 else
1079                         return NULL;
1080         }
1081         if (p = (char *) strrchr(archive_name, '.')) {
1082                 if (strucmp(".LZH", p) == 0
1083                     || strucmp(".LZS", p) == 0
1084                     || strucmp(".COM", p) == 0  /* DOS SFX */
1085                     || strucmp(".EXE", p) == 0
1086                     || strucmp(".X", p) == 0    /* HUMAN SFX */
1087                     || strucmp(".BAK", p) == 0) {       /* for BackUp */
1088                         open_old_archive_1(archive_name, &fp);
1089                         return fp;
1090                 }
1091         }
1092
1093         if (open_old_archive_1(archive_name, &fp))
1094                 return fp;
1095         xsnprintf(expanded_archive_name, sizeof(expanded_archive_name),
1096               "%s.lzh", archive_name);
1097         if (open_old_archive_1(expanded_archive_name, &fp)) {
1098                 archive_name = expanded_archive_name;
1099                 return fp;
1100         }
1101         /*
1102          * if ( (errno&0xffff)!=E_PNNF ) { archive_name =
1103          * expanded_archive_name; return NULL; }
1104          */
1105         xsnprintf(expanded_archive_name, sizeof(expanded_archive_name),
1106               "%s.lzs", archive_name);
1107         if (open_old_archive_1(expanded_archive_name, &fp)) {
1108                 archive_name = expanded_archive_name;
1109                 return fp;
1110         }
1111         /*
1112          * if ( (errno&0xffff)!=E_PNNF ) { archive_name =
1113          * expanded_archive_name; return NULL; }
1114          */
1115         /*
1116          * sprintf( expanded_archive_name , "%s.lzh",archive_name);
1117          * archive_name = expanded_archive_name;
1118          */
1119         return NULL;
1120 }
1121
1122 /* ------------------------------------------------------------------------ */
1123 int
1124 inquire(msg, name, selective)
1125         char           *msg, *name, *selective;
1126 {
1127         char            buffer[1024];
1128         char           *p;
1129
1130         for (;;) {
1131                 fprintf(stderr, "%s %s ", name, msg);
1132                 fflush(stderr);
1133
1134                 fgets(buffer, 1024, stdin);
1135
1136                 for (p = selective; *p; p++)
1137                         if (buffer[0] == *p)
1138                                 return p - selective;
1139         }
1140         /* NOTREACHED */
1141 }
1142
1143 /* ------------------------------------------------------------------------ */
1144 void
1145 write_archive_tail(nafp)
1146         FILE           *nafp;
1147 {
1148         putc(0x00, nafp);
1149 }
1150
1151 /* ------------------------------------------------------------------------ */
1152 void
1153 copy_old_one(oafp, nafp, hdr)
1154         FILE           *oafp, *nafp;
1155         LzHeader       *hdr;
1156 {
1157         if (noexec) {
1158                 fseek(oafp, (long) (hdr->header_size + 2) + hdr->packed_size, SEEK_CUR);
1159         }
1160         else {
1161                 reading_filename = archive_name;
1162                 writting_filename = temporary_name;
1163                 if (hdr->header_level != 2) {
1164                         copyfile(oafp, nafp,
1165                                          (long) (hdr->header_size + 2) + hdr->packed_size, 0);
1166                 } else {
1167                         copyfile(oafp, nafp,
1168                                          (long) (hdr->header_size) + hdr->packed_size, 0);
1169                 }
1170         }
1171 }
1172
1173 /* Local Variables: */
1174 /* mode:c */
1175 /* tab-width:4 */
1176 /* compile-command:"gcc -c lharc.c" */
1177 /* End: */
1178 /* vi: set tabstop=4: */