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5491
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1 /* Convert files for Emacs Hexl mode.
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2 Copyright (C) 1989, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
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3 2009, 2010 Free Software Foundation, Inc.
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4 Copyright (C) 2010 Ben Wing.
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5
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6 Author: Keith Gabryelski
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7 (according to authors.el)
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8
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9 This file is not considered part of XEmacs.
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10
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11 This program is free software: you can redistribute it and/or modify
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12 it under the terms of the GNU General Public License as published by
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13 the Free Software Foundation, either version 3 of the License, or
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14 (at your option) any later version.
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428
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15
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16 This program is distributed in the hope that it will be useful,
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17 but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 GNU General Public License for more details.
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20
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21 You should have received a copy of the GNU General Public License
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22 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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23
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24 /* Synced up with: GNU 23.1.92. */
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25 /* Synced by: Ben Wing, 2-17-10. */
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26
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27 #ifdef HAVE_CONFIG_H
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438
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28 #include <config.h>
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29 #endif
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428
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30
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31 #include <stdio.h>
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32 #include <ctype.h>
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442
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33 #ifdef WIN32_NATIVE
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440
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34 #include <io.h>
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428
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35 #include <fcntl.h>
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36 #endif
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37
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38 #if __STDC__ || defined(STDC_HEADERS)
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39 #include <stdlib.h>
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442
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40 #ifdef HAVE_UNISTD_H
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428
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41 #include <unistd.h>
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442
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42 #endif
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428
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43 #include <string.h>
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44 #endif
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45
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46 #define DEFAULT_GROUPING 0x01
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47 #define DEFAULT_BASE 16
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48
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49 #undef TRUE
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50 #undef FALSE
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51 #define TRUE (1)
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52 #define FALSE (0)
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53
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54 int base = DEFAULT_BASE, un_flag = FALSE, iso_flag = FALSE, endian = 1;
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55 int group_by = DEFAULT_GROUPING;
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56 char *progname;
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57
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58 void usage (void);
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59
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60 int
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61 main (int argc, char *argv[])
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62 {
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63 register long address;
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64 char string[18];
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65 FILE *fp;
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66
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67 progname = *argv++; --argc;
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68
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428
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69 /*
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70 ** -hex hex dump
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71 ** -oct Octal dump
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72 ** -group-by-8-bits
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73 ** -group-by-16-bits
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74 ** -group-by-32-bits
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75 ** -group-by-64-bits
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76 ** -iso iso character set.
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77 ** -big-endian Big Endian
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78 ** -little-endian Little Endian
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79 ** -un || -de from hexl format to binary.
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80 ** -- End switch list.
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81 ** <filename> dump filename
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82 ** - (as filename == stdin)
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83 */
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84
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85 while (*argv && *argv[0] == '-' && (*argv)[1])
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86 {
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87 /* A switch! */
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88 if (!strcmp (*argv, "--"))
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89 {
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90 --argc; argv++;
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91 break;
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92 }
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93 else if (!strcmp (*argv, "-un") || !strcmp (*argv, "-de"))
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94 {
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95 un_flag = TRUE;
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96 --argc; argv++;
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97 }
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98 else if (!strcmp (*argv, "-hex"))
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99 {
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100 base = 16;
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101 --argc; argv++;
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102 }
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103 else if (!strcmp (*argv, "-iso"))
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104 {
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105 iso_flag = TRUE;
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106 --argc; argv++;
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107 }
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108 else if (!strcmp (*argv, "-oct"))
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109 {
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110 base = 8;
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111 --argc; argv++;
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112 }
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113 else if (!strcmp (*argv, "-big-endian"))
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114 {
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115 endian = 1;
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116 --argc; argv++;
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117 }
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118 else if (!strcmp (*argv, "-little-endian"))
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119 {
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120 endian = 0;
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121 --argc; argv++;
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122 }
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123 else if (!strcmp (*argv, "-group-by-8-bits"))
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124 {
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125 group_by = 0x00;
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126 --argc; argv++;
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127 }
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128 else if (!strcmp (*argv, "-group-by-16-bits"))
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129 {
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130 group_by = 0x01;
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131 --argc; argv++;
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132 }
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133 else if (!strcmp (*argv, "-group-by-32-bits"))
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134 {
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135 group_by = 0x03;
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136 --argc; argv++;
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137 }
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138 else if (!strcmp (*argv, "-group-by-64-bits"))
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139 {
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140 group_by = 0x07;
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141 endian = 0;
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142 --argc; argv++;
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143 }
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144 else
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145 {
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146 fprintf (stderr, "%s: invalid switch: \"%s\".\n", progname,
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428
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147 *argv);
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148 usage ();
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149 }
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150 }
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151
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152 do
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153 {
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154 if (*argv == NULL)
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155 fp = stdin;
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156 else
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157 {
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158 char *filename = *argv++;
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159
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160 if (!strcmp (filename, "-"))
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161 fp = stdin;
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162 else if ((fp = fopen (filename, "r")) == NULL)
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163 {
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164 perror (filename);
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165 continue;
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166 }
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167 }
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168
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169 if (un_flag)
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170 {
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171 char buf[18];
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172
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173 #ifdef WIN32_NATIVE
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174 if (!isatty (_fileno (stdout)))
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175 _setmode (_fileno (stdout), O_BINARY);
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176 #endif
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177 for (;;)
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178 {
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179 register int i, c = 0, d;
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180
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181 #define hexchar(x) (isdigit (x) ? x - '0' : x - 'a' + 10)
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182
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183 fread (buf, 1, 10, fp); /* skip 10 bytes */
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184
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185 for (i=0; i < 16; ++i)
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186 {
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187 if ((c = getc (fp)) == ' ' || c == EOF)
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188 break;
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189
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190 d = getc (fp);
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191 c = hexchar (c) * 0x10 + hexchar (d);
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192 putchar (c);
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193
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194 if ((i&group_by) == group_by)
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195 getc (fp);
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196 }
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197
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198 if (c == ' ')
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199 {
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200 while ((c = getc (fp)) != '\n' && c != EOF)
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201 ;
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202
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203 if (c == EOF)
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204 break;
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205 }
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206 else
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207 {
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208 if (i < 16)
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209 break;
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210
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211 fread (buf, 1, 18, fp); /* skip 18 bytes */
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212 }
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213 }
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214 }
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215 else
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216 {
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217 #ifdef WIN32_NATIVE
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218 if (!isatty (_fileno (stdout)))
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219 _setmode (_fileno (stdout), O_BINARY);
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220 #endif
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221 address = 0;
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222 string[0] = ' ';
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223 string[17] = '\0';
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224 for (;;)
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225 {
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226 register int i, c = 0;
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227
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228 for (i=0; i < 16; ++i)
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229 {
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230 if ((c = getc (fp)) == EOF)
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231 {
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232 if (!i)
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233 break;
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234
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235 fputs (" ", stdout);
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236 string[i+1] = '\0';
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237 }
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238 else
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239 {
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240 if (!i)
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241 printf ("%08lx: ", address);
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428
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242
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243 if (iso_flag)
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244 string[i+1] =
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245 (c < 0x20 || (c >= 0x7F && c < 0xa0)) ? '.' :c;
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246 else
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247 string[i+1] = (c < 0x20 || c >= 0x7F) ? '.' : c;
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248
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249 printf ("%02x", c);
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428
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250 }
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251
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252 if ((i&group_by) == group_by)
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253 putchar (' ');
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254 }
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255
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256 if (i)
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257 puts (string);
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258
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259 if (c == EOF)
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260 break;
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261
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262 address += 0x10;
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263
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264 }
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265 }
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266
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267 if (fp != stdin)
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268 fclose (fp);
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269
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270 } while (*argv != NULL);
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271 return EXIT_SUCCESS;
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428
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272 }
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273
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274 void
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442
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275 usage (void)
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428
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276 {
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442
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277 fprintf (stderr, "Usage: %s [-de] [-iso]\n", progname);
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278 exit (EXIT_FAILURE);
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428
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279 }
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280
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281 /* arch-tag: 20e04fb7-926e-4e48-be86-64fe869ecdaa
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282 (do not change this comment) */
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283
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284 /* hexl.c ends here */
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