1 | /* getopt_long and getopt_long_only entry points for GNU getopt.
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2 | Copyright (C) 1987,88,89,90,91,92,93,94,96,97 Free Software Foundation, Inc.
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3 | This file is part of the GNU C Library.
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4 |
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5 | The GNU C Library is free software; you can redistribute it and/or
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6 | modify it under the terms of the GNU Library General Public License as
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7 | published by the Free Software Foundation; either version 2 of the
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8 | License, or (at your option) any later version.
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9 |
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10 | The GNU C Library is distributed in the hope that it will be useful,
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11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 | Library General Public License for more details.
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14 |
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15 | You should have received a copy of the GNU Library General Public
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16 | License along with the GNU C Library; see the file COPYING.LIB. If not,
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17 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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18 | Boston, MA 02111-1307, USA. */
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19 |
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20 | #ifdef HAVE_CONFIG_H
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21 | #include <config.h>
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22 | #endif
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23 |
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24 | #include "getopt.h"
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25 |
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26 | #if !defined (__STDC__) || !__STDC__
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27 | /* This is a separate conditional since some stdc systems
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28 | reject `defined (const)'. */
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29 | #ifndef const
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30 | #define const
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31 | #endif
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32 | #endif
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33 |
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34 | #include <stdio.h>
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35 |
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36 | /* Comment out all this code if we are using the GNU C Library, and are not
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37 | actually compiling the library itself. This code is part of the GNU C
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38 | Library, but also included in many other GNU distributions. Compiling
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39 | and linking in this code is a waste when using the GNU C library
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40 | (especially if it is a shared library). Rather than having every GNU
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41 | program understand `configure --with-gnu-libc' and omit the object files,
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42 | it is simpler to just do this in the source for each such file. */
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43 |
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44 | #define GETOPT_INTERFACE_VERSION 2
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45 | #if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2
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46 | #include <gnu-versions.h>
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47 | #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
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48 | #define ELIDE_CODE
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49 | #endif
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50 | #endif
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51 |
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52 | #ifndef ELIDE_CODE
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53 |
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54 |
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55 | /* This needs to come after some library #include
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56 | to get __GNU_LIBRARY__ defined. */
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57 | #ifdef __GNU_LIBRARY__
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58 | #include <stdlib.h>
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59 | #endif
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60 |
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61 | #ifndef NULL
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62 | #define NULL 0
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63 | #endif
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64 |
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65 | int
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66 | getopt_long (argc, argv, options, long_options, opt_index)
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67 | int argc;
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68 | char *const *argv;
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69 | const char *options;
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70 | const struct option *long_options;
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71 | int *opt_index;
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72 | {
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73 | return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
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74 | }
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75 |
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76 | /* Like getopt_long, but '-' as well as '--' can indicate a long option.
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77 | If an option that starts with '-' (not '--') doesn't match a long option,
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78 | but does match a short option, it is parsed as a short option
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79 | instead. */
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80 |
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81 | int
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82 | getopt_long_only (argc, argv, options, long_options, opt_index)
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83 | int argc;
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84 | char *const *argv;
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85 | const char *options;
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86 | const struct option *long_options;
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87 | int *opt_index;
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88 | {
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89 | return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
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90 | }
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91 |
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92 |
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93 | #endif /* Not ELIDE_CODE. */
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94 |
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95 | #ifdef TEST
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96 |
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97 | #include <stdio.h>
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98 |
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99 | int
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100 | main (argc, argv)
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101 | int argc;
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102 | char **argv;
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103 | {
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104 | int c;
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105 | int digit_optind = 0;
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106 |
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107 | while (1)
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108 | {
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109 | int this_option_optind = optind ? optind : 1;
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110 | int option_index = 0;
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111 | static struct option long_options[] =
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112 | {
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113 | {"add", 1, 0, 0},
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114 | {"append", 0, 0, 0},
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115 | {"delete", 1, 0, 0},
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116 | {"verbose", 0, 0, 0},
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117 | {"create", 0, 0, 0},
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118 | {"file", 1, 0, 0},
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119 | {0, 0, 0, 0}
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120 | };
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121 |
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122 | c = getopt_long (argc, argv, "abc:d:0123456789",
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123 | long_options, &option_index);
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124 | if (c == -1)
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125 | break;
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126 |
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127 | switch (c)
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128 | {
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129 | case 0:
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130 | printf ("option %s", long_options[option_index].name);
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131 | if (optarg)
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132 | printf (" with arg %s", optarg);
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133 | printf ("\n");
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134 | break;
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135 |
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136 | case '0':
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137 | case '1':
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138 | case '2':
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139 | case '3':
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140 | case '4':
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141 | case '5':
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142 | case '6':
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143 | case '7':
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144 | case '8':
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145 | case '9':
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146 | if (digit_optind != 0 && digit_optind != this_option_optind)
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147 | printf ("digits occur in two different argv-elements.\n");
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148 | digit_optind = this_option_optind;
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149 | printf ("option %c\n", c);
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150 | break;
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151 |
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152 | case 'a':
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153 | printf ("option a\n");
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154 | break;
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155 |
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156 | case 'b':
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157 | printf ("option b\n");
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158 | break;
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159 |
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160 | case 'c':
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161 | printf ("option c with value `%s'\n", optarg);
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162 | break;
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163 |
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164 | case 'd':
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165 | printf ("option d with value `%s'\n", optarg);
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166 | break;
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167 |
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168 | case '?':
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169 | break;
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170 |
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171 | default:
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172 | printf ("?? getopt returned character code 0%o ??\n", c);
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173 | }
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174 | }
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175 |
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176 | if (optind < argc)
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177 | {
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178 | printf ("non-option ARGV-elements: ");
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179 | while (optind < argc)
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180 | printf ("%s ", argv[optind++]);
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181 | printf ("\n");
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182 | }
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183 |
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184 | exit (0);
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185 | }
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186 |
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187 | #endif /* TEST */
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