projects / unix-history / blame
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1 | /* |
| 2 | * Copyright (c) 1989 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms are permitted | |
| 6 | * provided that the above copyright notice and this paragraph are | |
| 7 | * duplicated in all such forms and that any documentation, | |
| 8 | * advertising materials, and other materials related to such | |
| 9 | * distribution and use acknowledge that the software was developed | |
| 10 | * by the University of California, Berkeley. The name of the | |
| 11 | * University may not be used to endorse or promote products derived | |
| 12 | * from this software without specific prior written permission. | |
| 13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
| 14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
| 15 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
| 16 | */ | |
| 17 | ||
| 18 | #ifndef lint | |
| 19 | char copyright[] = | |
| 20 | "@(#) Copyright (c) 1989 The Regents of the University of California.\n\ | |
| 21 | All rights reserved.\n"; | |
| 22 | #endif /* not lint */ | |
| 23 | ||
| 24 | #ifndef lint | |
| 25 | static char sccsid[] = "@(#)hexdump.c 5.1 (Berkeley) %G%"; | |
| 26 | #endif /* not lint */ | |
| 27 | ||
| 28 | #include <sys/types.h> | |
| 29 | #include <stdio.h> | |
| 30 | #include "hexdump.h" | |
| 31 | ||
| 32 | enum _vflag vflag = WAIT; /* display duplicate lines */ | |
| 33 | FS *fshead; /* head of format strings */ | |
| 34 | off_t skip; /* bytes to skip */ | |
| 35 | int blocksize; /* data block size */ | |
| 36 | int exitval; /* final exit value */ | |
| 37 | int length; /* max bytes to read */ | |
| 38 | ||
| 39 | main(argc, argv) | |
| 40 | int argc; | |
| 41 | char **argv; | |
| 42 | { | |
| 43 | extern int errno, optind; | |
| 44 | extern char *optarg; | |
| 45 | register FS *tfs; | |
| 46 | int ch; | |
| 47 | char *p, *rindex(); | |
| 48 | ||
| 49 | length = -1; | |
| 50 | while ((ch = getopt(argc, argv, "bcde:f:n:os:v")) != EOF) | |
| 51 | switch (ch) { | |
| 52 | case 'b': | |
| 53 | add("\"%07.7_Ax\n\""); | |
| 54 | add("\"%07.7_ax \" 16/1 \"%03o \" \"\\n\""); | |
| 55 | break; | |
| 56 | case 'c': | |
| 57 | add("\"%07.7_Ax\n\""); | |
| 58 | add("\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\""); | |
| 59 | break; | |
| 60 | case 'd': | |
| 61 | add("\"%07.7_Ax\n\""); | |
| 62 | add("\"%07.7_ax \" 8/2 \"%05u \" \"\\n\""); | |
| 63 | break; | |
| 64 | case 'e': | |
| 65 | add(optarg); | |
| 66 | break; | |
| 67 | case 'f': | |
| 68 | addfile(optarg); | |
| 69 | break; | |
| 70 | case 'n': | |
| 71 | if ((length = atoi(optarg)) < 0) { | |
| 72 | (void)fprintf(stderr, | |
| 73 | "hexdump: bad length value.\n"); | |
| 74 | exit(1); | |
| 75 | } | |
| 76 | break; | |
| 77 | case 'o': | |
| 78 | add("\"%07.7_Ax\n\""); | |
| 79 | add("\"%07.7_ax \" 8/2 \"%06o \" \"\\n\""); | |
| 80 | break; | |
| 81 | case 's': | |
| 82 | if ((skip = strtol(optarg, &p, 0)) < 0) { | |
| 83 | (void)fprintf(stderr, | |
| 84 | "hexdump: bad skip value.\n"); | |
| 85 | exit(1); | |
| 86 | } | |
| 87 | switch(*p) { | |
| 88 | case 'b': | |
| 89 | skip *= 512; | |
| 90 | break; | |
| 91 | case 'k': | |
| 92 | skip *= 1024; | |
| 93 | break; | |
| 94 | case 'm': | |
| 95 | skip *= 1048576; | |
| 96 | break; | |
| 97 | } | |
| 98 | break; | |
| 99 | case 'v': | |
| 100 | vflag = ALL; | |
| 101 | break; | |
| 102 | case '?': | |
| 103 | usage(); | |
| 104 | exit(1); | |
| 105 | } | |
| 106 | ||
| 107 | if (!fshead) { | |
| 108 | p = rindex(argv[0], 'o'); | |
| 109 | if (p && !strcmp(p, "od")) { | |
| 110 | add("\"%07.7_Ao\n\""); | |
| 111 | add("\"%07.7_ao \" 8/2 \"%06o \" \"\\n\""); | |
| 112 | } else { | |
| 113 | add("\"%07.7_Ax\n\""); | |
| 114 | add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\""); | |
| 115 | } | |
| 116 | } | |
| 117 | ||
| 118 | argv += optind; | |
| 119 | argc -= optind; | |
| 120 | ||
| 121 | /* figure out the data block size */ | |
| 122 | for (blocksize = 0, tfs = fshead; tfs; tfs = tfs->nextfs) { | |
| 123 | tfs->bcnt = size(tfs); | |
| 124 | if (blocksize < tfs->bcnt) | |
| 125 | blocksize = tfs->bcnt; | |
| 126 | } | |
| 127 | /* rewrite the rules, do syntax checking */ | |
| 128 | for (tfs = fshead; tfs; tfs = tfs->nextfs) | |
| 129 | rewrite(tfs); | |
| 130 | ||
| 131 | (void)next(argv); | |
| 132 | display(); | |
| 133 | exit(exitval); | |
| 134 | } | |
| 135 | ||
| 136 | usage() | |
| 137 | { | |
| 138 | (void)fprintf(stderr, | |
| 139 | "hexdump: [bcdov] [-e format] [-f file] [-n length] [-s skip] [file ...]\n"); | |
| 140 | exit(1); | |
| 141 | } |