| 1 | /* Convert files for Emacs Hexl mode. |
| 2 | Copyright (C) 1989 Free Software Foundation, Inc |
| 3 | |
| 4 | This file is not considered part of GNU Emacs. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software Foundation, |
| 18 | Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 19 | |
| 20 | #ifdef HAVE_CONFIG_H |
| 21 | #include <config.h> |
| 22 | #endif |
| 23 | |
| 24 | #include <stdio.h> |
| 25 | #include <ctype.h> |
| 26 | #ifdef DOS_NT |
| 27 | #include <fcntl.h> |
| 28 | #if __DJGPP__ >= 2 |
| 29 | #include <io.h> |
| 30 | #endif |
| 31 | #endif |
| 32 | #ifdef WINDOWSNT |
| 33 | #include <io.h> |
| 34 | #endif |
| 35 | |
| 36 | #define DEFAULT_GROUPING 0x01 |
| 37 | #define DEFAULT_BASE 16 |
| 38 | |
| 39 | #undef TRUE |
| 40 | #undef FALSE |
| 41 | #define TRUE (1) |
| 42 | #define FALSE (0) |
| 43 | |
| 44 | int base = DEFAULT_BASE, un_flag = FALSE, iso_flag = FALSE, endian = 1; |
| 45 | int group_by = DEFAULT_GROUPING; |
| 46 | char *progname; |
| 47 | |
| 48 | void usage(); |
| 49 | |
| 50 | int |
| 51 | main (argc, argv) |
| 52 | int argc; |
| 53 | char *argv[]; |
| 54 | { |
| 55 | register long address; |
| 56 | char string[18]; |
| 57 | FILE *fp; |
| 58 | |
| 59 | progname = *argv++; --argc; |
| 60 | |
| 61 | /* |
| 62 | ** -hex hex dump |
| 63 | ** -oct Octal dump |
| 64 | ** -group-by-8-bits |
| 65 | ** -group-by-16-bits |
| 66 | ** -group-by-32-bits |
| 67 | ** -group-by-64-bits |
| 68 | ** -iso iso character set. |
| 69 | ** -big-endian Big Endian |
| 70 | ** -little-endian Little Endian |
| 71 | ** -un || -de from hexl format to binary. |
| 72 | ** -- End switch list. |
| 73 | ** <filename> dump filename |
| 74 | ** - (as filename == stdin) |
| 75 | */ |
| 76 | |
| 77 | while (*argv && *argv[0] == '-' && (*argv)[1]) |
| 78 | { |
| 79 | /* A switch! */ |
| 80 | if (!strcmp (*argv, "--")) |
| 81 | { |
| 82 | --argc; argv++; |
| 83 | break; |
| 84 | } |
| 85 | else if (!strcmp (*argv, "-un") || !strcmp (*argv, "-de")) |
| 86 | { |
| 87 | un_flag = TRUE; |
| 88 | --argc; argv++; |
| 89 | } |
| 90 | else if (!strcmp (*argv, "-hex")) |
| 91 | { |
| 92 | base = 16; |
| 93 | --argc; argv++; |
| 94 | } |
| 95 | else if (!strcmp (*argv, "-iso")) |
| 96 | { |
| 97 | iso_flag = TRUE; |
| 98 | --argc; argv++; |
| 99 | } |
| 100 | else if (!strcmp (*argv, "-oct")) |
| 101 | { |
| 102 | base = 8; |
| 103 | --argc; argv++; |
| 104 | } |
| 105 | else if (!strcmp (*argv, "-big-endian")) |
| 106 | { |
| 107 | endian = 1; |
| 108 | --argc; argv++; |
| 109 | } |
| 110 | else if (!strcmp (*argv, "-little-endian")) |
| 111 | { |
| 112 | endian = 0; |
| 113 | --argc; argv++; |
| 114 | } |
| 115 | else if (!strcmp (*argv, "-group-by-8-bits")) |
| 116 | { |
| 117 | group_by = 0x00; |
| 118 | --argc; argv++; |
| 119 | } |
| 120 | else if (!strcmp (*argv, "-group-by-16-bits")) |
| 121 | { |
| 122 | group_by = 0x01; |
| 123 | --argc; argv++; |
| 124 | } |
| 125 | else if (!strcmp (*argv, "-group-by-32-bits")) |
| 126 | { |
| 127 | group_by = 0x03; |
| 128 | --argc; argv++; |
| 129 | } |
| 130 | else if (!strcmp (*argv, "-group-by-64-bits")) |
| 131 | { |
| 132 | group_by = 0x07; |
| 133 | endian = 0; |
| 134 | --argc; argv++; |
| 135 | } |
| 136 | else |
| 137 | { |
| 138 | fprintf (stderr, "%s: invalid switch: \"%s\".\n", progname, |
| 139 | *argv); |
| 140 | usage (); |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | do |
| 145 | { |
| 146 | if (*argv == NULL) |
| 147 | fp = stdin; |
| 148 | else |
| 149 | { |
| 150 | char *filename = *argv++; |
| 151 | |
| 152 | if (!strcmp (filename, "-")) |
| 153 | fp = stdin; |
| 154 | else if ((fp = fopen (filename, "r")) == NULL) |
| 155 | { |
| 156 | perror (filename); |
| 157 | continue; |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | if (un_flag) |
| 162 | { |
| 163 | char buf[18]; |
| 164 | |
| 165 | #ifdef DOS_NT |
| 166 | #if (__DJGPP__ >= 2) || (defined WINDOWSNT) |
| 167 | if (!isatty (fileno (stdout))) |
| 168 | setmode (fileno (stdout), O_BINARY); |
| 169 | #else |
| 170 | (stdout)->_flag &= ~_IOTEXT; /* print binary */ |
| 171 | _setmode (fileno (stdout), O_BINARY); |
| 172 | #endif |
| 173 | #endif |
| 174 | for (;;) |
| 175 | { |
| 176 | register int i, c, d; |
| 177 | |
| 178 | #define hexchar(x) (isdigit (x) ? x - '0' : x - 'a' + 10) |
| 179 | |
| 180 | fread (buf, 1, 10, fp); /* skip 10 bytes */ |
| 181 | |
| 182 | for (i=0; i < 16; ++i) |
| 183 | { |
| 184 | if ((c = getc (fp)) == ' ' || c == EOF) |
| 185 | break; |
| 186 | |
| 187 | d = getc (fp); |
| 188 | c = hexchar (c) * 0x10 + hexchar (d); |
| 189 | putchar (c); |
| 190 | |
| 191 | if ((i&group_by) == group_by) |
| 192 | getc (fp); |
| 193 | } |
| 194 | |
| 195 | if (c == ' ') |
| 196 | { |
| 197 | while ((c = getc (fp)) != '\n' && c != EOF) |
| 198 | ; |
| 199 | |
| 200 | if (c == EOF) |
| 201 | break; |
| 202 | } |
| 203 | else |
| 204 | { |
| 205 | if (i < 16) |
| 206 | break; |
| 207 | |
| 208 | fread (buf, 1, 18, fp); /* skip 18 bytes */ |
| 209 | } |
| 210 | } |
| 211 | } |
| 212 | else |
| 213 | { |
| 214 | #ifdef DOS_NT |
| 215 | #if (__DJGPP__ >= 2) || (defined WINDOWSNT) |
| 216 | if (!isatty (fileno (fp))) |
| 217 | setmode (fileno (fp), O_BINARY); |
| 218 | #else |
| 219 | (fp)->_flag &= ~_IOTEXT; /* read binary */ |
| 220 | _setmode (fileno (fp), O_BINARY); |
| 221 | #endif |
| 222 | #endif |
| 223 | address = 0; |
| 224 | string[0] = ' '; |
| 225 | string[17] = '\0'; |
| 226 | for (;;) |
| 227 | { |
| 228 | register int i, c; |
| 229 | |
| 230 | for (i=0; i < 16; ++i) |
| 231 | { |
| 232 | if ((c = getc (fp)) == EOF) |
| 233 | { |
| 234 | if (!i) |
| 235 | break; |
| 236 | |
| 237 | fputs (" ", stdout); |
| 238 | string[i+1] = '\0'; |
| 239 | } |
| 240 | else |
| 241 | { |
| 242 | if (!i) |
| 243 | printf ("%08lx: ", address); |
| 244 | |
| 245 | if (iso_flag) |
| 246 | string[i+1] = |
| 247 | (c < 0x20 || (c >= 0x7F && c < 0xa0)) ? '.' :c; |
| 248 | else |
| 249 | string[i+1] = (c < 0x20 || c >= 0x7F) ? '.' : c; |
| 250 | |
| 251 | printf ("%02x", c); |
| 252 | } |
| 253 | |
| 254 | if ((i&group_by) == group_by) |
| 255 | putchar (' '); |
| 256 | } |
| 257 | |
| 258 | if (i) |
| 259 | puts (string); |
| 260 | |
| 261 | if (c == EOF) |
| 262 | break; |
| 263 | |
| 264 | address += 0x10; |
| 265 | |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | if (fp != stdin) |
| 270 | fclose (fp); |
| 271 | |
| 272 | } while (*argv != NULL); |
| 273 | return 0; |
| 274 | } |
| 275 | |
| 276 | void |
| 277 | usage () |
| 278 | { |
| 279 | fprintf (stderr, "usage: %s [-de] [-iso]\n", progname); |
| 280 | exit (1); |
| 281 | } |