2.11BSD#431 - /usr/src/local/mtools/mtype.c

   1: /*
   2:  * Display contents of an MSDOS file
   3:  *
   4:  * Emmet P. Gray			US Army, HQ III Corps & Fort Hood
   5:  * ...!uunet!uiucuxc!fthood!egray	Attn: AFZF-DE-ENV
   6:  * fthood!egray@uxc.cso.uiuc.edu	Directorate of Engineering & Housing
   7:  * 					Environmental Management Office
   8:  * 					Fort Hood, TX 76544-5057
   9:  */
  10: 
  11: #include <stdio.h>
  12: #include "msdos.h"
  13: #include "patchlevel.h"
  14: 
  15: int fd = -1;                /* the file descriptor for the device */
  16: int dir_start;              /* starting sector for directory */
  17: int dir_len;                /* length of directory (in sectors) */
  18: int dir_entries;            /* number of directory entries */
  19: int clus_size;              /* cluster size (in sectors) */
  20: char *mcwd;             /* the Current Working Directory */
  21: int fat_error;              /* FAT error detected? */
  22: 
  23: main(argc, argv)
  24: int argc;
  25: char *argv[];
  26: {
  27:     extern int optind;
  28:     extern char *optarg;
  29:     int i, ismatch, entry, c, oops, textmode, stripmode;
  30:     unsigned int fat;
  31:     long size;
  32:     char *filename, *newfile, *get_name(), *unix_name(), *pathname;
  33:     char *get_path(), drive, get_drive(), last_drive, *fix_mcwd();
  34:     void exit();
  35:     struct directory *dir, *dir_read();
  36: 
  37:                     /* get command line options */
  38:     oops = 0;
  39:     stripmode = 0;
  40:     textmode = 0;
  41:     while ((c = getopt(argc, argv, "st")) != EOF) {
  42:         switch (c) {
  43:             case 's':
  44:                 stripmode = 1;
  45:                 break;
  46:             case 't':
  47:                 textmode = 1;
  48:                 break;
  49:             default:
  50:                 oops = 1;
  51:                 break;
  52:         }
  53:     }
  54: 
  55:     if (oops || (argc - optind) < 1) {
  56:         fprintf(stderr, "Mtools version %s, dated %s\n", VERSION, DATE);
  57:         fprintf(stderr, "Usage: %s [-st] msdosfile [msdosfiles...]\n", argv[0]);
  58:         exit(1);
  59:     }
  60:     last_drive = 'x';
  61:     mcwd = fix_mcwd();
  62: 
  63:     for (i = optind; i < argc; i++) {
  64:         drive = get_drive(argv[i]);
  65:         if (drive != last_drive) {
  66:             if (init(drive, 0)) {
  67:                 fprintf(stderr, "%s: Cannot initialize '%c:'\n", argv[0], drive);
  68:                 continue;
  69:             }
  70:             last_drive = drive;
  71:         }
  72:         filename = get_name(argv[i]);
  73:         pathname = get_path(argv[i]);
  74:         if (subdir(drive, pathname))
  75:             continue;
  76: 
  77:         ismatch = 0;
  78:         for (entry = 0; entry < dir_entries; entry++) {
  79:             dir = dir_read(entry);
  80:                     /* if empty */
  81:             if (dir->name[0] == 0x0)
  82:                 break;
  83:                     /* if erased */
  84:             if (dir->name[0] == 0xe5)
  85:                 continue;
  86:                     /* if dir or volume label */
  87:             if ((dir->attr & 0x10) || (dir->attr & 0x08))
  88:                 continue;
  89: 
  90:             newfile = unix_name(dir->name, dir->ext);
  91: 
  92:                     /* see it if matches the pattern */
  93:             if (match(newfile, filename)) {
  94:                 fat = dir->start[1] * 0x100 + dir->start[0];
  95:                 size = dir->size[3] * 0x1000000L + dir->size[2] * 0x10000L + dir->size[1] * 0x100 + dir->size[0];
  96:                 if (file_read(stdout, fat, textmode, stripmode, size))
  97:                     break;
  98:                 ismatch = 1;
  99:             }
 100:         }
 101:         if (fat_error)
 102:             break;
 103: 
 104:         if (!ismatch)
 105:             fprintf(stderr, "%s: File \"%s\" not found\n", argv[0], filename);
 106:     }
 107:     close(fd);
 108:     exit(0);
 109: }
 110: 
 111: /*
 112:  * stubs for read-only programs
 113:  */
 114: 
 115: void
 116: disk_flush()
 117: {
 118:     extern int disk_dirty;
 119: 
 120:     disk_dirty = 0;
 121:     return;
 122: }
 123: 
 124: void
 125: dir_flush()
 126: {
 127:     extern int dir_dirty;
 128: 
 129:     dir_dirty = 0;
 130:     return;
 131: }

Defined functions

Defined variables