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1 /* getopt_long and getopt_long_only entry points for GNU getopt.
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2 Copyright (C) 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1996, 1997,
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3 1998, 2004, 2006, 2009, 2010 Free Software Foundation, Inc.
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4 This file is part of the GNU C Library.
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5
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6 This program is free software: you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 3 of the License, or
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9 (at your option) any later version.
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10
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11 This program is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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18
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19 #ifdef _LIBC
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20 # include <getopt.h>
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21 #else
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22 # include <config.h>
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23 # include "getopt.h"
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24 #endif
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25 #include "getopt_int.h"
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26
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27 #include <stdio.h>
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28
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29 /* This needs to come after some library #include
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30 to get __GNU_LIBRARY__ defined. */
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31 #ifdef __GNU_LIBRARY__
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32 #include <stdlib.h>
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33 #endif
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34
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35 #ifndef NULL
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36 #define NULL 0
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37 #endif
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38
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39 int
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40 getopt_long (int argc, char *__getopt_argv_const *argv, const char *options,
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41 const struct option *long_options, int *opt_index)
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42 {
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43 return _getopt_internal (argc, (char **) argv, options, long_options,
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44 opt_index, 0, 0);
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45 }
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46
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47 int
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48 _getopt_long_r (int argc, char **argv, const char *options,
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49 const struct option *long_options, int *opt_index,
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50 struct _getopt_data *d)
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51 {
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52 return _getopt_internal_r (argc, argv, options, long_options, opt_index,
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53 0, d, 0);
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54 }
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55
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56 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
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57 If an option that starts with '-' (not '--') doesn't match a long option,
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58 but does match a short option, it is parsed as a short option
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59 instead. */
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60
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61 int
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62 getopt_long_only (int argc, char *__getopt_argv_const *argv,
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63 const char *options,
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64 const struct option *long_options, int *opt_index)
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65 {
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66 return _getopt_internal (argc, (char **) argv, options, long_options,
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67 opt_index, 1, 0);
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68 }
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69
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70 int
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71 _getopt_long_only_r (int argc, char **argv, const char *options,
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72 const struct option *long_options, int *opt_index,
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73 struct _getopt_data *d)
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74 {
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75 return _getopt_internal_r (argc, argv, options, long_options, opt_index,
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76 1, d, 0);
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77 }
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78
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79
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80 #ifdef TEST
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81
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82 #include <stdio.h>
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83
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84 int
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85 main (int argc, char **argv)
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86 {
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87 int c;
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88 int digit_optind = 0;
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89
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90 while (1)
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91 {
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92 int this_option_optind = optind ? optind : 1;
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93 int option_index = 0;
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94 static const struct option long_options[] =
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95 {
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96 {"add", 1, 0, 0},
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97 {"append", 0, 0, 0},
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98 {"delete", 1, 0, 0},
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99 {"verbose", 0, 0, 0},
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100 {"create", 0, 0, 0},
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101 {"file", 1, 0, 0},
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102 {0, 0, 0, 0}
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103 };
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104
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105 c = getopt_long (argc, argv, "abc:d:0123456789",
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106 long_options, &option_index);
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107 if (c == -1)
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108 break;
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109
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110 switch (c)
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111 {
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112 case 0:
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113 printf ("option %s", long_options[option_index].name);
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114 if (optarg)
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115 printf (" with arg %s", optarg);
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116 printf ("\n");
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117 break;
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118
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119 case '0':
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120 case '1':
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121 case '2':
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122 case '3':
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123 case '4':
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124 case '5':
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125 case '6':
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126 case '7':
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127 case '8':
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128 case '9':
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129 if (digit_optind != 0 && digit_optind != this_option_optind)
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130 printf ("digits occur in two different argv-elements.\n");
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131 digit_optind = this_option_optind;
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132 printf ("option %c\n", c);
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133 break;
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134
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135 case 'a':
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136 printf ("option a\n");
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137 break;
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138
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139 case 'b':
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140 printf ("option b\n");
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141 break;
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142
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143 case 'c':
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144 printf ("option c with value `%s'\n", optarg);
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145 break;
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146
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147 case 'd':
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148 printf ("option d with value `%s'\n", optarg);
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149 break;
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150
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151 case '?':
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152 break;
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153
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154 default:
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155 printf ("?? getopt returned character code 0%o ??\n", c);
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156 }
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157 }
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158
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159 if (optind < argc)
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160 {
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161 printf ("non-option ARGV-elements: ");
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162 while (optind < argc)
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163 printf ("%s ", argv[optind++]);
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164 printf ("\n");
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165 }
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166
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167 exit (0);
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168 }
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169
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170 #endif /* TEST */
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