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428
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1 /* Synched up with: FSF 19.28. */
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2
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438
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3 #include <config.h>
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428
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4
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5 #include <stdio.h>
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6 #include <ctype.h>
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7 #ifdef MSDOS
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8 #include <fcntl.h>
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9 #endif
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10
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11 #if __STDC__ || defined(STDC_HEADERS)
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12 #include <stdlib.h>
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13 #include <unistd.h>
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14 #include <string.h>
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15 #endif
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16
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17 #define DEFAULT_GROUPING 0x01
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18 #define DEFAULT_BASE 16
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19
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20 #undef TRUE
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21 #undef FALSE
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22 #define TRUE (1)
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23 #define FALSE (0)
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24
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25 int base = DEFAULT_BASE, un_flag = FALSE, iso_flag = FALSE, endian = 1;
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26 int group_by = DEFAULT_GROUPING;
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27 char *progname;
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28
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29 void usage (void);
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30
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31 int
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32 main (int argc, char *argv[])
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33 {
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34 register long address;
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35 char string[18];
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36 FILE *fp;
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37
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38 progname = *argv++; --argc;
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39
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40 /*
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41 ** -hex hex dump
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42 ** -oct Octal dump
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43 ** -group-by-8-bits
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44 ** -group-by-16-bits
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45 ** -group-by-32-bits
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46 ** -group-by-64-bits
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47 ** -iso iso character set.
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48 ** -big-endian Big Endian
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49 ** -little-endian Little Endian
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50 ** -un || -de from hexl format to binary.
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51 ** -- End switch list.
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52 ** <filename> dump filename
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53 ** - (as filename == stdin)
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54 */
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55
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56 while (*argv && *argv[0] == '-' && (*argv)[1])
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57 {
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58 /* A switch! */
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59 if (!strcmp (*argv, "--"))
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60 {
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61 --argc; argv++;
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62 break;
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63 }
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64 else if (!strcmp (*argv, "-un") || !strcmp (*argv, "-de"))
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65 {
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66 un_flag = TRUE;
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67 --argc; argv++;
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68 }
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69 else if (!strcmp (*argv, "-hex"))
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70 {
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71 base = 16;
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72 --argc; argv++;
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73 }
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74 else if (!strcmp (*argv, "-iso"))
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75 {
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76 iso_flag = TRUE;
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77 --argc; argv++;
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78 }
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79 else if (!strcmp (*argv, "-oct"))
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80 {
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81 base = 8;
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82 --argc; argv++;
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83 }
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84 else if (!strcmp (*argv, "-big-endian"))
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85 {
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86 endian = 1;
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87 --argc; argv++;
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88 }
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89 else if (!strcmp (*argv, "-little-endian"))
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90 {
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91 endian = 0;
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92 --argc; argv++;
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93 }
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94 else if (!strcmp (*argv, "-group-by-8-bits"))
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95 {
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96 group_by = 0x00;
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97 --argc; argv++;
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98 }
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99 else if (!strcmp (*argv, "-group-by-16-bits"))
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100 {
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101 group_by = 0x01;
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102 --argc; argv++;
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103 }
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104 else if (!strcmp (*argv, "-group-by-32-bits"))
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105 {
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106 group_by = 0x03;
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107 --argc; argv++;
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108 }
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109 else if (!strcmp (*argv, "-group-by-64-bits"))
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110 {
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111 group_by = 0x07;
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112 endian = 0;
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113 --argc; argv++;
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114 }
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115 else
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116 {
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117 (void) fprintf (stderr, "%s: invalid switch: \"%s\".\n", progname,
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118 *argv);
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119 usage ();
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120 }
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121 }
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122
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123 do
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124 {
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125 if (*argv == NULL)
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126 fp = stdin;
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127 else
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128 {
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129 char *filename = *argv++;
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130
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131 if (!strcmp (filename, "-"))
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132 fp = stdin;
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133 else if ((fp = fopen (filename, "r")) == NULL)
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134 {
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135 perror (filename);
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136 continue;
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137 }
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138 }
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139
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140 if (un_flag)
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141 {
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142 char buf[18];
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143
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144 #ifdef MSDOS
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145 (stdout)->_flag &= ~_IOTEXT; /* print binary */
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146 _setmode (fileno (stdout), O_BINARY);
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147 #endif
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148 for (;;)
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149 {
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150 register int i, c, d;
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151
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152 #define hexchar(x) (isdigit (x) ? x - '0' : x - 'a' + 10)
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153
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154 fread (buf, 1, 10, fp); /* skip 10 bytes */
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155
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156 for (i=0; i < 16; ++i)
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157 {
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158 if ((c = getc (fp)) == ' ' || c == EOF)
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159 break;
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160
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161 d = getc (fp);
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162 c = hexchar (c) * 0x10 + hexchar (d);
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163 putchar (c);
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164
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165 if ((i&group_by) == group_by)
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166 getc (fp);
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167 }
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168
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169 if (c == ' ')
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170 {
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171 while ((c = getc (fp)) != '\n' && c != EOF)
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172 ;
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173
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174 if (c == EOF)
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175 break;
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176 }
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177 else
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178 {
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179 if (i < 16)
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180 break;
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181
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182 fread (buf, 1, 18, fp); /* skip 18 bytes */
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183 }
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184 }
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185 }
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186 else
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187 {
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188 #ifdef MSDOS
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189 (fp)->_flag &= ~_IOTEXT; /* read binary */
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190 _setmode (fileno (fp), O_BINARY);
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191 #endif
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192 address = 0;
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193 string[0] = ' ';
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194 string[17] = '\0';
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195 for (;;)
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196 {
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197 register int i, c;
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198
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199 for (i=0; i < 16; ++i)
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200 {
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201 if ((c = getc (fp)) == EOF)
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202 {
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203 if (!i)
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204 break;
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205
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206 fputs (" ", stdout);
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207 string[i+1] = '\0';
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208 }
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209 else
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210 {
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211 if (!i)
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212 (void) printf ("%08lx: ", address);
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213
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214 if (iso_flag)
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215 string[i+1] =
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216 (c < 0x20 || (c >= 0x7F && c < 0xa0)) ? '.' :c;
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217 else
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218 string[i+1] = (c < 0x20 || c >= 0x7F) ? '.' : c;
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219
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220 (void) printf ("%02x", c);
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221 }
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222
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223 if ((i&group_by) == group_by)
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224 putchar (' ');
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225 }
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226
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227 if (i)
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228 puts (string);
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229
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230 if (c == EOF)
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231 break;
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232
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233 address += 0x10;
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234
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235 }
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236 }
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237
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238 if (fp != stdin)
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239 (void) fclose (fp);
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240
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241 } while (*argv != NULL);
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242 return 0;
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243 }
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244
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245 void
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246 usage ()
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247 {
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248 (void) fprintf (stderr, "usage: %s [-de] [-iso]\n", progname);
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249 exit (1);
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250 }
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