1 | /* Getopt for GNU. |
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2 | NOTE: getopt is now part of the C library, so if you don't know what |
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3 | "Keep this file name-space clean" means, talk to drepper@gnu.org |
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4 | before changing it! |
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5 | Copyright (C) 1987,88,89,90,91,92,93,94,95,96,98,99,2000,2001,2002 |
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6 | Free Software Foundation, Inc. |
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7 | This file is part of the GNU C Library. |
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8 | |
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9 | The GNU C Library is free software; you can redistribute it and/or |
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10 | modify it under the terms of the GNU Lesser General Public |
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11 | License as published by the Free Software Foundation; either |
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12 | version 2.1 of the License, or (at your option) any later version. |
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13 | |
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14 | The GNU C Library is distributed in the hope that it will be useful, |
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15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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17 | Lesser General Public License for more details. |
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18 | |
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19 | You should have received a copy of the GNU Lesser General Public |
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20 | License along with the GNU C Library; if not, write to the Free |
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21 | Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
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22 | 02110-1301 USA. */ |
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23 | |
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24 | /* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>. |
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25 | Ditto for AIX 3.2 and <stdlib.h>. */ |
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26 | #ifndef _NO_PROTO |
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27 | # define _NO_PROTO |
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28 | #endif |
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29 | |
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30 | #ifdef HAVE_CONFIG_H |
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31 | # include <config.h> |
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32 | #endif |
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33 | |
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34 | #if !defined __STDC__ || !__STDC__ |
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35 | /* This is a separate conditional since some stdc systems |
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36 | reject `defined (const)'. */ |
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37 | # ifndef const |
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38 | # define const |
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39 | # endif |
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40 | #endif |
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41 | |
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42 | #include <stdio.h> |
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43 | |
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44 | /* Comment out all this code if we are using the GNU C Library, and are not |
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45 | actually compiling the library itself. This code is part of the GNU C |
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46 | Library, but also included in many other GNU distributions. Compiling |
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47 | and linking in this code is a waste when using the GNU C library |
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48 | (especially if it is a shared library). Rather than having every GNU |
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49 | program understand `configure --with-gnu-libc' and omit the object files, |
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50 | it is simpler to just do this in the source for each such file. */ |
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51 | |
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52 | #define GETOPT_INTERFACE_VERSION 2 |
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53 | #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2 |
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54 | # include <gnu-versions.h> |
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55 | # if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION |
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56 | # define ELIDE_CODE |
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57 | # endif |
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58 | #endif |
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59 | |
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60 | #ifndef ELIDE_CODE |
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61 | |
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62 | |
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63 | /* This needs to come after some library #include |
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64 | to get __GNU_LIBRARY__ defined. */ |
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65 | #ifdef __GNU_LIBRARY__ |
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66 | /* Don't include stdlib.h for non-GNU C libraries because some of them |
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67 | contain conflicting prototypes for getopt. */ |
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68 | # include <stdlib.h> |
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69 | # include <unistd.h> |
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70 | #endif /* GNU C library. */ |
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71 | |
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72 | #ifdef VMS |
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73 | # include <unixlib.h> |
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74 | # if HAVE_STRING_H - 0 |
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75 | # include <string.h> |
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76 | # endif |
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77 | #endif |
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78 | |
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79 | #ifndef _ |
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80 | /* This is for other GNU distributions with internationalized messages. */ |
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81 | # if (HAVE_LIBINTL_H && ENABLE_NLS) || defined _LIBC |
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82 | # include <libintl.h> |
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83 | # ifndef _ |
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84 | # define _(msgid) gettext (msgid) |
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85 | # endif |
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86 | # else |
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87 | # define _(msgid) (msgid) |
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88 | # endif |
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89 | # if defined _LIBC && defined USE_IN_LIBIO |
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90 | # include <wchar.h> |
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91 | # endif |
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92 | #endif |
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93 | |
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94 | #ifndef attribute_hidden |
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95 | # define attribute_hidden |
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96 | #endif |
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97 | |
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98 | /* This version of `getopt' appears to the caller like standard Unix `getopt' |
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99 | but it behaves differently for the user, since it allows the user |
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100 | to intersperse the options with the other arguments. |
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101 | |
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102 | As `getopt' works, it permutes the elements of ARGV so that, |
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103 | when it is done, all the options precede everything else. Thus |
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104 | all application programs are extended to handle flexible argument order. |
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105 | |
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106 | Setting the environment variable POSIXLY_CORRECT disables permutation. |
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107 | Then the behavior is completely standard. |
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108 | |
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109 | GNU application programs can use a third alternative mode in which |
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110 | they can distinguish the relative order of options and other arguments. */ |
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111 | |
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112 | #include "getopt.h" |
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113 | |
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114 | /* For communication from `getopt' to the caller. |
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115 | When `getopt' finds an option that takes an argument, |
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116 | the argument value is returned here. |
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117 | Also, when `ordering' is RETURN_IN_ORDER, |
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118 | each non-option ARGV-element is returned here. */ |
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119 | |
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120 | char *optarg; |
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121 | |
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122 | /* Index in ARGV of the next element to be scanned. |
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123 | This is used for communication to and from the caller |
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124 | and for communication between successive calls to `getopt'. |
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125 | |
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126 | On entry to `getopt', zero means this is the first call; initialize. |
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127 | |
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128 | When `getopt' returns -1, this is the index of the first of the |
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129 | non-option elements that the caller should itself scan. |
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130 | |
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131 | Otherwise, `optind' communicates from one call to the next |
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132 | how much of ARGV has been scanned so far. */ |
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133 | |
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134 | /* 1003.2 says this must be 1 before any call. */ |
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135 | int optind = 1; |
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136 | |
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137 | /* Formerly, initialization of getopt depended on optind==0, which |
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138 | causes problems with re-calling getopt as programs generally don't |
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139 | know that. */ |
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140 | |
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141 | int __getopt_initialized attribute_hidden; |
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142 | |
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143 | /* The next char to be scanned in the option-element |
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144 | in which the last option character we returned was found. |
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145 | This allows us to pick up the scan where we left off. |
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146 | |
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147 | If this is zero, or a null string, it means resume the scan |
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148 | by advancing to the next ARGV-element. */ |
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149 | |
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150 | static char *nextchar; |
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151 | |
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152 | /* Callers store zero here to inhibit the error message |
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153 | for unrecognized options. */ |
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154 | |
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155 | int opterr = 1; |
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156 | |
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157 | /* Set to an option character which was unrecognized. |
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158 | This must be initialized on some systems to avoid linking in the |
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159 | system's own getopt implementation. */ |
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160 | |
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161 | int optopt = '?'; |
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162 | |
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163 | /* Describe how to deal with options that follow non-option ARGV-elements. |
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164 | |
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165 | If the caller did not specify anything, |
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166 | the default is REQUIRE_ORDER if the environment variable |
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167 | POSIXLY_CORRECT is defined, PERMUTE otherwise. |
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168 | |
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169 | REQUIRE_ORDER means don't recognize them as options; |
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170 | stop option processing when the first non-option is seen. |
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171 | This is what Unix does. |
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172 | This mode of operation is selected by either setting the environment |
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173 | variable POSIXLY_CORRECT, or using `+' as the first character |
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174 | of the list of option characters. |
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175 | |
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176 | PERMUTE is the default. We permute the contents of ARGV as we scan, |
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177 | so that eventually all the non-options are at the end. This allows options |
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178 | to be given in any order, even with programs that were not written to |
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179 | expect this. |
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180 | |
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181 | RETURN_IN_ORDER is an option available to programs that were written |
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182 | to expect options and other ARGV-elements in any order and that care about |
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183 | the ordering of the two. We describe each non-option ARGV-element |
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184 | as if it were the argument of an option with character code 1. |
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185 | Using `-' as the first character of the list of option characters |
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186 | selects this mode of operation. |
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187 | |
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188 | The special argument `--' forces an end of option-scanning regardless |
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189 | of the value of `ordering'. In the case of RETURN_IN_ORDER, only |
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190 | `--' can cause `getopt' to return -1 with `optind' != ARGC. */ |
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191 | |
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192 | static enum |
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193 | { |
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194 | REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER |
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195 | } ordering; |
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196 | |
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197 | /* Value of POSIXLY_CORRECT environment variable. */ |
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198 | static char *posixly_correct; |
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199 | |
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200 | #ifdef __GNU_LIBRARY__ |
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201 | /* We want to avoid inclusion of string.h with non-GNU libraries |
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202 | because there are many ways it can cause trouble. |
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203 | On some systems, it contains special magic macros that don't work |
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204 | in GCC. */ |
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205 | # include <string.h> |
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206 | # define my_index strchr |
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207 | #else |
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208 | |
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209 | # if HAVE_STRING_H |
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210 | # include <string.h> |
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211 | # else |
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212 | # include <strings.h> |
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213 | # endif |
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214 | |
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215 | /* Avoid depending on library functions or files |
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216 | whose names are inconsistent. */ |
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217 | |
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218 | #ifndef getenv |
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219 | /* avoid "warning C4273: 'getenv' : inconsistent dll linkage." */ |
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220 | #ifndef __WIN32__ |
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221 | extern char *getenv (); |
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222 | #endif |
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223 | #endif |
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224 | |
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225 | static char * |
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226 | my_index (str, chr) |
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227 | const char *str; |
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228 | int chr; |
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229 | { |
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230 | while (*str) |
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231 | { |
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232 | if (*str == chr) |
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233 | return (char *) str; |
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234 | str++; |
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235 | } |
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236 | return 0; |
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237 | } |
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238 | |
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239 | /* If using GCC, we can safely declare strlen this way. |
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240 | If not using GCC, it is ok not to declare it. */ |
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241 | #ifdef __GNUC__ |
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242 | /* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h. |
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243 | That was relevant to code that was here before. */ |
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244 | # if (!defined __STDC__ || !__STDC__) && !defined strlen |
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245 | /* gcc with -traditional declares the built-in strlen to return int, |
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246 | and has done so at least since version 2.4.5. -- rms. */ |
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247 | extern int strlen (const char *); |
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248 | # endif /* not __STDC__ */ |
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249 | #endif /* __GNUC__ */ |
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250 | |
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251 | #endif /* not __GNU_LIBRARY__ */ |
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252 | |
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253 | /* Handle permutation of arguments. */ |
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254 | |
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255 | /* Describe the part of ARGV that contains non-options that have |
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256 | been skipped. `first_nonopt' is the index in ARGV of the first of them; |
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257 | `last_nonopt' is the index after the last of them. */ |
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258 | |
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259 | static int first_nonopt; |
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260 | static int last_nonopt; |
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261 | |
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262 | #ifdef _LIBC |
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263 | /* Stored original parameters. |
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264 | XXX This is no good solution. We should rather copy the args so |
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265 | that we can compare them later. But we must not use malloc(3). */ |
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266 | extern int __libc_argc; |
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267 | extern char **__libc_argv; |
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268 | |
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269 | /* Bash 2.0 gives us an environment variable containing flags |
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270 | indicating ARGV elements that should not be considered arguments. */ |
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271 | |
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272 | # ifdef USE_NONOPTION_FLAGS |
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273 | /* Defined in getopt_init.c */ |
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274 | extern char *__getopt_nonoption_flags; |
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275 | |
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276 | static int nonoption_flags_max_len; |
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277 | static int nonoption_flags_len; |
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278 | # endif |
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279 | |
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280 | # ifdef USE_NONOPTION_FLAGS |
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281 | # define SWAP_FLAGS(ch1, ch2) \ |
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282 | if (nonoption_flags_len > 0) \ |
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283 | { \ |
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284 | char __tmp = __getopt_nonoption_flags[ch1]; \ |
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285 | __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \ |
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286 | __getopt_nonoption_flags[ch2] = __tmp; \ |
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287 | } |
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288 | # else |
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289 | # define SWAP_FLAGS(ch1, ch2) |
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290 | # endif |
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291 | #else /* !_LIBC */ |
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292 | # define SWAP_FLAGS(ch1, ch2) |
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293 | #endif /* _LIBC */ |
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294 | |
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295 | /* Exchange two adjacent subsequences of ARGV. |
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296 | One subsequence is elements [first_nonopt,last_nonopt) |
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297 | which contains all the non-options that have been skipped so far. |
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298 | The other is elements [last_nonopt,optind), which contains all |
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299 | the options processed since those non-options were skipped. |
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300 | |
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301 | `first_nonopt' and `last_nonopt' are relocated so that they describe |
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302 | the new indices of the non-options in ARGV after they are moved. */ |
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303 | |
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304 | #if defined __STDC__ && __STDC__ |
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305 | static void exchange (char **); |
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306 | #endif |
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307 | |
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308 | static void |
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309 | exchange (argv) |
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310 | char **argv; |
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311 | { |
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312 | int bottom = first_nonopt; |
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313 | int middle = last_nonopt; |
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314 | int top = optind; |
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315 | char *tem; |
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316 | |
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317 | /* Exchange the shorter segment with the far end of the longer segment. |
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318 | That puts the shorter segment into the right place. |
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319 | It leaves the longer segment in the right place overall, |
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320 | but it consists of two parts that need to be swapped next. */ |
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321 | |
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322 | #if defined _LIBC && defined USE_NONOPTION_FLAGS |
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323 | /* First make sure the handling of the `__getopt_nonoption_flags' |
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324 | string can work normally. Our top argument must be in the range |
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325 | of the string. */ |
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326 | if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len) |
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327 | { |
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328 | /* We must extend the array. The user plays games with us and |
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329 | presents new arguments. */ |
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330 | char *new_str = malloc (top + 1); |
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331 | if (new_str == NULL) |
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332 | nonoption_flags_len = nonoption_flags_max_len = 0; |
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333 | else |
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334 | { |
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335 | memset (__mempcpy (new_str, __getopt_nonoption_flags, |
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336 | nonoption_flags_max_len), |
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337 | '\0', top + 1 - nonoption_flags_max_len); |
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338 | nonoption_flags_max_len = top + 1; |
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339 | __getopt_nonoption_flags = new_str; |
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340 | } |
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341 | } |
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342 | #endif |
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343 | |
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344 | while (top > middle && middle > bottom) |
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345 | { |
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346 | if (top - middle > middle - bottom) |
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347 | { |
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348 | /* Bottom segment is the short one. */ |
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349 | int len = middle - bottom; |
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350 | register int i; |
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351 | |
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352 | /* Swap it with the top part of the top segment. */ |
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353 | for (i = 0; i < len; i++) |
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354 | { |
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355 | tem = argv[bottom + i]; |
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356 | argv[bottom + i] = argv[top - (middle - bottom) + i]; |
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357 | argv[top - (middle - bottom) + i] = tem; |
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358 | SWAP_FLAGS (bottom + i, top - (middle - bottom) + i); |
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359 | } |
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360 | /* Exclude the moved bottom segment from further swapping. */ |
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361 | top -= len; |
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362 | } |
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363 | else |
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364 | { |
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365 | /* Top segment is the short one. */ |
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366 | int len = top - middle; |
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367 | register int i; |
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368 | |
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369 | /* Swap it with the bottom part of the bottom segment. */ |
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370 | for (i = 0; i < len; i++) |
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371 | { |
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372 | tem = argv[bottom + i]; |
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373 | argv[bottom + i] = argv[middle + i]; |
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374 | argv[middle + i] = tem; |
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375 | SWAP_FLAGS (bottom + i, middle + i); |
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376 | } |
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377 | /* Exclude the moved top segment from further swapping. */ |
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378 | bottom += len; |
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379 | } |
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380 | } |
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381 | |
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382 | /* Update records for the slots the non-options now occupy. */ |
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383 | |
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384 | first_nonopt += (optind - last_nonopt); |
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385 | last_nonopt = optind; |
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386 | } |
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387 | |
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388 | /* Initialize the internal data when the first call is made. */ |
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389 | |
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390 | #if defined __STDC__ && __STDC__ |
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391 | static const char *_getopt_initialize (int, char *const *, const char *); |
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392 | #endif |
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393 | static const char * |
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394 | _getopt_initialize (argc, argv, optstring) |
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395 | int argc; |
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396 | char *const *argv; |
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397 | const char *optstring; |
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398 | { |
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399 | /* Start processing options with ARGV-element 1 (since ARGV-element 0 |
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400 | is the program name); the sequence of previously skipped |
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401 | non-option ARGV-elements is empty. */ |
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402 | |
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403 | first_nonopt = last_nonopt = optind; |
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404 | |
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405 | nextchar = NULL; |
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406 | |
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407 | posixly_correct = getenv ("POSIXLY_CORRECT"); |
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408 | |
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409 | /* Determine how to handle the ordering of options and nonoptions. */ |
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410 | |
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411 | if (optstring[0] == '-') |
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412 | { |
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413 | ordering = RETURN_IN_ORDER; |
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414 | ++optstring; |
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415 | } |
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416 | else if (optstring[0] == '+') |
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417 | { |
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418 | ordering = REQUIRE_ORDER; |
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419 | ++optstring; |
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420 | } |
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421 | else if (posixly_correct != NULL) |
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422 | ordering = REQUIRE_ORDER; |
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423 | else |
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424 | ordering = PERMUTE; |
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425 | |
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426 | #if defined _LIBC && defined USE_NONOPTION_FLAGS |
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427 | if (posixly_correct == NULL |
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428 | && argc == __libc_argc && argv == __libc_argv) |
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429 | { |
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430 | if (nonoption_flags_max_len == 0) |
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431 | { |
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432 | if (__getopt_nonoption_flags == NULL |
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433 | || __getopt_nonoption_flags[0] == '\0') |
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434 | nonoption_flags_max_len = -1; |
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435 | else |
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436 | { |
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437 | const char *orig_str = __getopt_nonoption_flags; |
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438 | int len = nonoption_flags_max_len = strlen (orig_str); |
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439 | if (nonoption_flags_max_len < argc) |
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440 | nonoption_flags_max_len = argc; |
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441 | __getopt_nonoption_flags = |
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442 | (char *) malloc (nonoption_flags_max_len); |
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443 | if (__getopt_nonoption_flags == NULL) |
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444 | nonoption_flags_max_len = -1; |
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445 | else |
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446 | memset (__mempcpy (__getopt_nonoption_flags, orig_str, len), |
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447 | '\0', nonoption_flags_max_len - len); |
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448 | } |
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449 | } |
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450 | nonoption_flags_len = nonoption_flags_max_len; |
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451 | } |
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452 | else |
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453 | nonoption_flags_len = 0; |
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454 | #endif |
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455 | |
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456 | return optstring; |
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457 | } |
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458 | |
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459 | /* Scan elements of ARGV (whose length is ARGC) for option characters |
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460 | given in OPTSTRING. |
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461 | |
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462 | If an element of ARGV starts with '-', and is not exactly "-" or "--", |
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463 | then it is an option element. The characters of this element |
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464 | (aside from the initial '-') are option characters. If `getopt' |
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465 | is called repeatedly, it returns successively each of the option characters |
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466 | from each of the option elements. |
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467 | |
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468 | If `getopt' finds another option character, it returns that character, |
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469 | updating `optind' and `nextchar' so that the next call to `getopt' can |
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470 | resume the scan with the following option character or ARGV-element. |
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471 | |
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472 | If there are no more option characters, `getopt' returns -1. |
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473 | Then `optind' is the index in ARGV of the first ARGV-element |
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474 | that is not an option. (The ARGV-elements have been permuted |
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475 | so that those that are not options now come last.) |
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476 | |
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477 | OPTSTRING is a string containing the legitimate option characters. |
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478 | If an option character is seen that is not listed in OPTSTRING, |
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479 | return '?' after printing an error message. If you set `opterr' to |
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480 | zero, the error message is suppressed but we still return '?'. |
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481 | |
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482 | If a char in OPTSTRING is followed by a colon, that means it wants an arg, |
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483 | so the following text in the same ARGV-element, or the text of the following |
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484 | ARGV-element, is returned in `optarg'. Two colons mean an option that |
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485 | wants an optional arg; if there is text in the current ARGV-element, |
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486 | it is returned in `optarg', otherwise `optarg' is set to zero. |
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487 | |
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488 | If OPTSTRING starts with `-' or `+', it requests different methods of |
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489 | handling the non-option ARGV-elements. |
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490 | See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above. |
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491 | |
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492 | Long-named options begin with `--' instead of `-'. |
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493 | Their names may be abbreviated as long as the abbreviation is unique |
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494 | or is an exact match for some defined option. If they have an |
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495 | argument, it follows the option name in the same ARGV-element, separated |
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496 | from the option name by a `=', or else the in next ARGV-element. |
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497 | When `getopt' finds a long-named option, it returns 0 if that option's |
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498 | `flag' field is nonzero, the value of the option's `val' field |
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499 | if the `flag' field is zero. |
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500 | |
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501 | The elements of ARGV aren't really const, because we permute them. |
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502 | But we pretend they're const in the prototype to be compatible |
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503 | with other systems. |
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504 | |
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505 | LONGOPTS is a vector of `struct option' terminated by an |
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506 | element containing a name which is zero. |
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507 | |
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508 | LONGIND returns the index in LONGOPT of the long-named option found. |
---|
509 | It is only valid when a long-named option has been found by the most |
---|
510 | recent call. |
---|
511 | |
---|
512 | If LONG_ONLY is nonzero, '-' as well as '--' can introduce |
---|
513 | long-named options. */ |
---|
514 | |
---|
515 | int |
---|
516 | _getopt_internal (argc, argv, optstring, longopts, longind, long_only) |
---|
517 | int argc; |
---|
518 | char *const *argv; |
---|
519 | const char *optstring; |
---|
520 | const struct option *longopts; |
---|
521 | int *longind; |
---|
522 | int long_only; |
---|
523 | { |
---|
524 | int print_errors = opterr; |
---|
525 | if (optstring[0] == ':') |
---|
526 | print_errors = 0; |
---|
527 | |
---|
528 | if (argc < 1) |
---|
529 | return -1; |
---|
530 | |
---|
531 | optarg = NULL; |
---|
532 | |
---|
533 | if (optind == 0 || !__getopt_initialized) |
---|
534 | { |
---|
535 | if (optind == 0) |
---|
536 | optind = 1; /* Don't scan ARGV[0], the program name. */ |
---|
537 | optstring = _getopt_initialize (argc, argv, optstring); |
---|
538 | __getopt_initialized = 1; |
---|
539 | } |
---|
540 | |
---|
541 | /* Test whether ARGV[optind] points to a non-option argument. |
---|
542 | Either it does not have option syntax, or there is an environment flag |
---|
543 | from the shell indicating it is not an option. The later information |
---|
544 | is only used when the used in the GNU libc. */ |
---|
545 | #if defined _LIBC && defined USE_NONOPTION_FLAGS |
---|
546 | # define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \ |
---|
547 | || (optind < nonoption_flags_len \ |
---|
548 | && __getopt_nonoption_flags[optind] == '1')) |
---|
549 | #else |
---|
550 | # define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0') |
---|
551 | #endif |
---|
552 | |
---|
553 | if (nextchar == NULL || *nextchar == '\0') |
---|
554 | { |
---|
555 | /* Advance to the next ARGV-element. */ |
---|
556 | |
---|
557 | /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been |
---|
558 | moved back by the user (who may also have changed the arguments). */ |
---|
559 | if (last_nonopt > optind) |
---|
560 | last_nonopt = optind; |
---|
561 | if (first_nonopt > optind) |
---|
562 | first_nonopt = optind; |
---|
563 | |
---|
564 | if (ordering == PERMUTE) |
---|
565 | { |
---|
566 | /* If we have just processed some options following some non-options, |
---|
567 | exchange them so that the options come first. */ |
---|
568 | |
---|
569 | if (first_nonopt != last_nonopt && last_nonopt != optind) |
---|
570 | exchange ((char **) argv); |
---|
571 | else if (last_nonopt != optind) |
---|
572 | first_nonopt = optind; |
---|
573 | |
---|
574 | /* Skip any additional non-options |
---|
575 | and extend the range of non-options previously skipped. */ |
---|
576 | |
---|
577 | while (optind < argc && NONOPTION_P) |
---|
578 | optind++; |
---|
579 | last_nonopt = optind; |
---|
580 | } |
---|
581 | |
---|
582 | /* The special ARGV-element `--' means premature end of options. |
---|
583 | Skip it like a null option, |
---|
584 | then exchange with previous non-options as if it were an option, |
---|
585 | then skip everything else like a non-option. */ |
---|
586 | |
---|
587 | if (optind != argc && !strcmp (argv[optind], "--")) |
---|
588 | { |
---|
589 | optind++; |
---|
590 | |
---|
591 | if (first_nonopt != last_nonopt && last_nonopt != optind) |
---|
592 | exchange ((char **) argv); |
---|
593 | else if (first_nonopt == last_nonopt) |
---|
594 | first_nonopt = optind; |
---|
595 | last_nonopt = argc; |
---|
596 | |
---|
597 | optind = argc; |
---|
598 | } |
---|
599 | |
---|
600 | /* If we have done all the ARGV-elements, stop the scan |
---|
601 | and back over any non-options that we skipped and permuted. */ |
---|
602 | |
---|
603 | if (optind == argc) |
---|
604 | { |
---|
605 | /* Set the next-arg-index to point at the non-options |
---|
606 | that we previously skipped, so the caller will digest them. */ |
---|
607 | if (first_nonopt != last_nonopt) |
---|
608 | optind = first_nonopt; |
---|
609 | return -1; |
---|
610 | } |
---|
611 | |
---|
612 | /* If we have come to a non-option and did not permute it, |
---|
613 | either stop the scan or describe it to the caller and pass it by. */ |
---|
614 | |
---|
615 | if (NONOPTION_P) |
---|
616 | { |
---|
617 | if (ordering == REQUIRE_ORDER) |
---|
618 | return -1; |
---|
619 | optarg = argv[optind++]; |
---|
620 | return 1; |
---|
621 | } |
---|
622 | |
---|
623 | /* We have found another option-ARGV-element. |
---|
624 | Skip the initial punctuation. */ |
---|
625 | |
---|
626 | nextchar = (argv[optind] + 1 |
---|
627 | + (longopts != NULL && argv[optind][1] == '-')); |
---|
628 | } |
---|
629 | |
---|
630 | /* Decode the current option-ARGV-element. */ |
---|
631 | |
---|
632 | /* Check whether the ARGV-element is a long option. |
---|
633 | |
---|
634 | If long_only and the ARGV-element has the form "-f", where f is |
---|
635 | a valid short option, don't consider it an abbreviated form of |
---|
636 | a long option that starts with f. Otherwise there would be no |
---|
637 | way to give the -f short option. |
---|
638 | |
---|
639 | On the other hand, if there's a long option "fubar" and |
---|
640 | the ARGV-element is "-fu", do consider that an abbreviation of |
---|
641 | the long option, just like "--fu", and not "-f" with arg "u". |
---|
642 | |
---|
643 | This distinction seems to be the most useful approach. */ |
---|
644 | |
---|
645 | if (longopts != NULL |
---|
646 | && (argv[optind][1] == '-' |
---|
647 | || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1]))))) |
---|
648 | { |
---|
649 | char *nameend; |
---|
650 | const struct option *p; |
---|
651 | const struct option *pfound = NULL; |
---|
652 | int exact = 0; |
---|
653 | int ambig = 0; |
---|
654 | int indfound = -1; |
---|
655 | int option_index; |
---|
656 | |
---|
657 | for (nameend = nextchar; *nameend && *nameend != '='; nameend++) |
---|
658 | /* Do nothing. */ ; |
---|
659 | |
---|
660 | /* Test all long options for either exact match |
---|
661 | or abbreviated matches. */ |
---|
662 | for (p = longopts, option_index = 0; p->name; p++, option_index++) |
---|
663 | if (!strncmp (p->name, nextchar, nameend - nextchar)) |
---|
664 | { |
---|
665 | if ((unsigned int) (nameend - nextchar) |
---|
666 | == (unsigned int) strlen (p->name)) |
---|
667 | { |
---|
668 | /* Exact match found. */ |
---|
669 | pfound = p; |
---|
670 | indfound = option_index; |
---|
671 | exact = 1; |
---|
672 | break; |
---|
673 | } |
---|
674 | else if (pfound == NULL) |
---|
675 | { |
---|
676 | /* First nonexact match found. */ |
---|
677 | pfound = p; |
---|
678 | indfound = option_index; |
---|
679 | } |
---|
680 | else if (long_only |
---|
681 | || pfound->has_arg != p->has_arg |
---|
682 | || pfound->flag != p->flag |
---|
683 | || pfound->val != p->val) |
---|
684 | /* Second or later nonexact match found. */ |
---|
685 | ambig = 1; |
---|
686 | } |
---|
687 | |
---|
688 | if (ambig && !exact) |
---|
689 | { |
---|
690 | if (print_errors) |
---|
691 | { |
---|
692 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
693 | char *buf; |
---|
694 | |
---|
695 | if (__asprintf (&buf, _("%s: option `%s' is ambiguous\n"), |
---|
696 | argv[0], argv[optind]) >= 0) |
---|
697 | { |
---|
698 | |
---|
699 | if (_IO_fwide (stderr, 0) > 0) |
---|
700 | __fwprintf (stderr, L"%s", buf); |
---|
701 | else |
---|
702 | fputs (buf, stderr); |
---|
703 | |
---|
704 | free (buf); |
---|
705 | } |
---|
706 | #else |
---|
707 | fprintf (stderr, _("%s: option `%s' is ambiguous\n"), |
---|
708 | argv[0], argv[optind]); |
---|
709 | #endif |
---|
710 | } |
---|
711 | nextchar += strlen (nextchar); |
---|
712 | optind++; |
---|
713 | optopt = 0; |
---|
714 | return '?'; |
---|
715 | } |
---|
716 | |
---|
717 | if (pfound != NULL) |
---|
718 | { |
---|
719 | option_index = indfound; |
---|
720 | optind++; |
---|
721 | if (*nameend) |
---|
722 | { |
---|
723 | /* Don't test has_arg with >, because some C compilers don't |
---|
724 | allow it to be used on enums. */ |
---|
725 | if (pfound->has_arg) |
---|
726 | optarg = nameend + 1; |
---|
727 | else |
---|
728 | { |
---|
729 | if (print_errors) |
---|
730 | { |
---|
731 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
732 | char *buf; |
---|
733 | int n; |
---|
734 | #endif |
---|
735 | |
---|
736 | if (argv[optind - 1][1] == '-') |
---|
737 | { |
---|
738 | /* --option */ |
---|
739 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
740 | n = __asprintf (&buf, _("\ |
---|
741 | %s: option `--%s' doesn't allow an argument\n"), |
---|
742 | argv[0], pfound->name); |
---|
743 | #else |
---|
744 | fprintf (stderr, _("\ |
---|
745 | %s: option `--%s' doesn't allow an argument\n"), |
---|
746 | argv[0], pfound->name); |
---|
747 | #endif |
---|
748 | } |
---|
749 | else |
---|
750 | { |
---|
751 | /* +option or -option */ |
---|
752 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
753 | n = __asprintf (&buf, _("\ |
---|
754 | %s: option `%c%s' doesn't allow an argument\n"), |
---|
755 | argv[0], argv[optind - 1][0], |
---|
756 | pfound->name); |
---|
757 | #else |
---|
758 | fprintf (stderr, _("\ |
---|
759 | %s: option `%c%s' doesn't allow an argument\n"), |
---|
760 | argv[0], argv[optind - 1][0], pfound->name); |
---|
761 | #endif |
---|
762 | } |
---|
763 | |
---|
764 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
765 | if (n >= 0) |
---|
766 | { |
---|
767 | if (_IO_fwide (stderr, 0) > 0) |
---|
768 | __fwprintf (stderr, L"%s", buf); |
---|
769 | else |
---|
770 | fputs (buf, stderr); |
---|
771 | |
---|
772 | free (buf); |
---|
773 | } |
---|
774 | #endif |
---|
775 | } |
---|
776 | |
---|
777 | nextchar += strlen (nextchar); |
---|
778 | |
---|
779 | optopt = pfound->val; |
---|
780 | return '?'; |
---|
781 | } |
---|
782 | } |
---|
783 | else if (pfound->has_arg == 1) |
---|
784 | { |
---|
785 | if (optind < argc) |
---|
786 | optarg = argv[optind++]; |
---|
787 | else |
---|
788 | { |
---|
789 | if (print_errors) |
---|
790 | { |
---|
791 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
792 | char *buf; |
---|
793 | |
---|
794 | if (__asprintf (&buf, _("\ |
---|
795 | %s: option `%s' requires an argument\n"), |
---|
796 | argv[0], argv[optind - 1]) >= 0) |
---|
797 | { |
---|
798 | if (_IO_fwide (stderr, 0) > 0) |
---|
799 | __fwprintf (stderr, L"%s", buf); |
---|
800 | else |
---|
801 | fputs (buf, stderr); |
---|
802 | |
---|
803 | free (buf); |
---|
804 | } |
---|
805 | #else |
---|
806 | fprintf (stderr, |
---|
807 | _("%s: option `%s' requires an argument\n"), |
---|
808 | argv[0], argv[optind - 1]); |
---|
809 | #endif |
---|
810 | } |
---|
811 | nextchar += strlen (nextchar); |
---|
812 | optopt = pfound->val; |
---|
813 | return optstring[0] == ':' ? ':' : '?'; |
---|
814 | } |
---|
815 | } |
---|
816 | nextchar += strlen (nextchar); |
---|
817 | if (longind != NULL) |
---|
818 | *longind = option_index; |
---|
819 | if (pfound->flag) |
---|
820 | { |
---|
821 | *(pfound->flag) = pfound->val; |
---|
822 | return 0; |
---|
823 | } |
---|
824 | return pfound->val; |
---|
825 | } |
---|
826 | |
---|
827 | /* Can't find it as a long option. If this is not getopt_long_only, |
---|
828 | or the option starts with '--' or is not a valid short |
---|
829 | option, then it's an error. |
---|
830 | Otherwise interpret it as a short option. */ |
---|
831 | if (!long_only || argv[optind][1] == '-' |
---|
832 | || my_index (optstring, *nextchar) == NULL) |
---|
833 | { |
---|
834 | if (print_errors) |
---|
835 | { |
---|
836 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
837 | char *buf; |
---|
838 | int n; |
---|
839 | #endif |
---|
840 | |
---|
841 | if (argv[optind][1] == '-') |
---|
842 | { |
---|
843 | /* --option */ |
---|
844 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
845 | n = __asprintf (&buf, _("%s: unrecognized option `--%s'\n"), |
---|
846 | argv[0], nextchar); |
---|
847 | #else |
---|
848 | fprintf (stderr, _("%s: unrecognized option `--%s'\n"), |
---|
849 | argv[0], nextchar); |
---|
850 | #endif |
---|
851 | } |
---|
852 | else |
---|
853 | { |
---|
854 | /* +option or -option */ |
---|
855 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
856 | n = __asprintf (&buf, _("%s: unrecognized option `%c%s'\n"), |
---|
857 | argv[0], argv[optind][0], nextchar); |
---|
858 | #else |
---|
859 | fprintf (stderr, _("%s: unrecognized option `%c%s'\n"), |
---|
860 | argv[0], argv[optind][0], nextchar); |
---|
861 | #endif |
---|
862 | } |
---|
863 | |
---|
864 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
865 | if (n >= 0) |
---|
866 | { |
---|
867 | if (_IO_fwide (stderr, 0) > 0) |
---|
868 | __fwprintf (stderr, L"%s", buf); |
---|
869 | else |
---|
870 | fputs (buf, stderr); |
---|
871 | |
---|
872 | free (buf); |
---|
873 | } |
---|
874 | #endif |
---|
875 | } |
---|
876 | nextchar = (char *) ""; |
---|
877 | optind++; |
---|
878 | optopt = 0; |
---|
879 | return '?'; |
---|
880 | } |
---|
881 | } |
---|
882 | |
---|
883 | /* Look at and handle the next short option-character. */ |
---|
884 | |
---|
885 | { |
---|
886 | char c = *nextchar++; |
---|
887 | char *temp = my_index (optstring, c); |
---|
888 | |
---|
889 | /* Increment `optind' when we start to process its last character. */ |
---|
890 | if (*nextchar == '\0') |
---|
891 | ++optind; |
---|
892 | |
---|
893 | if (temp == NULL || c == ':') |
---|
894 | { |
---|
895 | if (print_errors) |
---|
896 | { |
---|
897 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
898 | char *buf; |
---|
899 | int n; |
---|
900 | #endif |
---|
901 | |
---|
902 | if (posixly_correct) |
---|
903 | { |
---|
904 | /* 1003.2 specifies the format of this message. */ |
---|
905 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
906 | n = __asprintf (&buf, _("%s: illegal option -- %c\n"), |
---|
907 | argv[0], c); |
---|
908 | #else |
---|
909 | fprintf (stderr, _("%s: illegal option -- %c\n"), argv[0], c); |
---|
910 | #endif |
---|
911 | } |
---|
912 | else |
---|
913 | { |
---|
914 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
915 | n = __asprintf (&buf, _("%s: invalid option -- %c\n"), |
---|
916 | argv[0], c); |
---|
917 | #else |
---|
918 | fprintf (stderr, _("%s: invalid option -- %c\n"), argv[0], c); |
---|
919 | #endif |
---|
920 | } |
---|
921 | |
---|
922 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
923 | if (n >= 0) |
---|
924 | { |
---|
925 | if (_IO_fwide (stderr, 0) > 0) |
---|
926 | __fwprintf (stderr, L"%s", buf); |
---|
927 | else |
---|
928 | fputs (buf, stderr); |
---|
929 | |
---|
930 | free (buf); |
---|
931 | } |
---|
932 | #endif |
---|
933 | } |
---|
934 | optopt = c; |
---|
935 | return '?'; |
---|
936 | } |
---|
937 | /* Convenience. Treat POSIX -W foo same as long option --foo */ |
---|
938 | if (temp[0] == 'W' && temp[1] == ';') |
---|
939 | { |
---|
940 | char *nameend; |
---|
941 | const struct option *p; |
---|
942 | const struct option *pfound = NULL; |
---|
943 | int exact = 0; |
---|
944 | int ambig = 0; |
---|
945 | int indfound = 0; |
---|
946 | int option_index; |
---|
947 | |
---|
948 | /* This is an option that requires an argument. */ |
---|
949 | if (*nextchar != '\0') |
---|
950 | { |
---|
951 | optarg = nextchar; |
---|
952 | /* If we end this ARGV-element by taking the rest as an arg, |
---|
953 | we must advance to the next element now. */ |
---|
954 | optind++; |
---|
955 | } |
---|
956 | else if (optind == argc) |
---|
957 | { |
---|
958 | if (print_errors) |
---|
959 | { |
---|
960 | /* 1003.2 specifies the format of this message. */ |
---|
961 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
962 | char *buf; |
---|
963 | |
---|
964 | if (__asprintf (&buf, |
---|
965 | _("%s: option requires an argument -- %c\n"), |
---|
966 | argv[0], c) >= 0) |
---|
967 | { |
---|
968 | if (_IO_fwide (stderr, 0) > 0) |
---|
969 | __fwprintf (stderr, L"%s", buf); |
---|
970 | else |
---|
971 | fputs (buf, stderr); |
---|
972 | |
---|
973 | free (buf); |
---|
974 | } |
---|
975 | #else |
---|
976 | fprintf (stderr, _("%s: option requires an argument -- %c\n"), |
---|
977 | argv[0], c); |
---|
978 | #endif |
---|
979 | } |
---|
980 | optopt = c; |
---|
981 | if (optstring[0] == ':') |
---|
982 | c = ':'; |
---|
983 | else |
---|
984 | c = '?'; |
---|
985 | return c; |
---|
986 | } |
---|
987 | else |
---|
988 | /* We already incremented `optind' once; |
---|
989 | increment it again when taking next ARGV-elt as argument. */ |
---|
990 | optarg = argv[optind++]; |
---|
991 | |
---|
992 | /* optarg is now the argument, see if it's in the |
---|
993 | table of longopts. */ |
---|
994 | |
---|
995 | for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++) |
---|
996 | /* Do nothing. */ ; |
---|
997 | |
---|
998 | /* Test all long options for either exact match |
---|
999 | or abbreviated matches. */ |
---|
1000 | for (p = longopts, option_index = 0; p->name; p++, option_index++) |
---|
1001 | if (!strncmp (p->name, nextchar, nameend - nextchar)) |
---|
1002 | { |
---|
1003 | if ((unsigned int) (nameend - nextchar) == strlen (p->name)) |
---|
1004 | { |
---|
1005 | /* Exact match found. */ |
---|
1006 | pfound = p; |
---|
1007 | indfound = option_index; |
---|
1008 | exact = 1; |
---|
1009 | break; |
---|
1010 | } |
---|
1011 | else if (pfound == NULL) |
---|
1012 | { |
---|
1013 | /* First nonexact match found. */ |
---|
1014 | pfound = p; |
---|
1015 | indfound = option_index; |
---|
1016 | } |
---|
1017 | else |
---|
1018 | /* Second or later nonexact match found. */ |
---|
1019 | ambig = 1; |
---|
1020 | } |
---|
1021 | if (ambig && !exact) |
---|
1022 | { |
---|
1023 | if (print_errors) |
---|
1024 | { |
---|
1025 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
1026 | char *buf; |
---|
1027 | |
---|
1028 | if (__asprintf (&buf, _("%s: option `-W %s' is ambiguous\n"), |
---|
1029 | argv[0], argv[optind]) >= 0) |
---|
1030 | { |
---|
1031 | if (_IO_fwide (stderr, 0) > 0) |
---|
1032 | __fwprintf (stderr, L"%s", buf); |
---|
1033 | else |
---|
1034 | fputs (buf, stderr); |
---|
1035 | |
---|
1036 | free (buf); |
---|
1037 | } |
---|
1038 | #else |
---|
1039 | fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"), |
---|
1040 | argv[0], argv[optind]); |
---|
1041 | #endif |
---|
1042 | } |
---|
1043 | nextchar += strlen (nextchar); |
---|
1044 | optind++; |
---|
1045 | return '?'; |
---|
1046 | } |
---|
1047 | if (pfound != NULL) |
---|
1048 | { |
---|
1049 | option_index = indfound; |
---|
1050 | if (*nameend) |
---|
1051 | { |
---|
1052 | /* Don't test has_arg with >, because some C compilers don't |
---|
1053 | allow it to be used on enums. */ |
---|
1054 | if (pfound->has_arg) |
---|
1055 | optarg = nameend + 1; |
---|
1056 | else |
---|
1057 | { |
---|
1058 | if (print_errors) |
---|
1059 | { |
---|
1060 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
1061 | char *buf; |
---|
1062 | |
---|
1063 | if (__asprintf (&buf, _("\ |
---|
1064 | %s: option `-W %s' doesn't allow an argument\n"), |
---|
1065 | argv[0], pfound->name) >= 0) |
---|
1066 | { |
---|
1067 | if (_IO_fwide (stderr, 0) > 0) |
---|
1068 | __fwprintf (stderr, L"%s", buf); |
---|
1069 | else |
---|
1070 | fputs (buf, stderr); |
---|
1071 | |
---|
1072 | free (buf); |
---|
1073 | } |
---|
1074 | #else |
---|
1075 | fprintf (stderr, _("\ |
---|
1076 | %s: option `-W %s' doesn't allow an argument\n"), |
---|
1077 | argv[0], pfound->name); |
---|
1078 | #endif |
---|
1079 | } |
---|
1080 | |
---|
1081 | nextchar += strlen (nextchar); |
---|
1082 | return '?'; |
---|
1083 | } |
---|
1084 | } |
---|
1085 | else if (pfound->has_arg == 1) |
---|
1086 | { |
---|
1087 | if (optind < argc) |
---|
1088 | optarg = argv[optind++]; |
---|
1089 | else |
---|
1090 | { |
---|
1091 | if (print_errors) |
---|
1092 | { |
---|
1093 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
1094 | char *buf; |
---|
1095 | |
---|
1096 | if (__asprintf (&buf, _("\ |
---|
1097 | %s: option `%s' requires an argument\n"), |
---|
1098 | argv[0], argv[optind - 1]) >= 0) |
---|
1099 | { |
---|
1100 | if (_IO_fwide (stderr, 0) > 0) |
---|
1101 | __fwprintf (stderr, L"%s", buf); |
---|
1102 | else |
---|
1103 | fputs (buf, stderr); |
---|
1104 | |
---|
1105 | free (buf); |
---|
1106 | } |
---|
1107 | #else |
---|
1108 | fprintf (stderr, |
---|
1109 | _("%s: option `%s' requires an argument\n"), |
---|
1110 | argv[0], argv[optind - 1]); |
---|
1111 | #endif |
---|
1112 | } |
---|
1113 | nextchar += strlen (nextchar); |
---|
1114 | return optstring[0] == ':' ? ':' : '?'; |
---|
1115 | } |
---|
1116 | } |
---|
1117 | nextchar += strlen (nextchar); |
---|
1118 | if (longind != NULL) |
---|
1119 | *longind = option_index; |
---|
1120 | if (pfound->flag) |
---|
1121 | { |
---|
1122 | *(pfound->flag) = pfound->val; |
---|
1123 | return 0; |
---|
1124 | } |
---|
1125 | return pfound->val; |
---|
1126 | } |
---|
1127 | nextchar = NULL; |
---|
1128 | return 'W'; /* Let the application handle it. */ |
---|
1129 | } |
---|
1130 | if (temp[1] == ':') |
---|
1131 | { |
---|
1132 | if (temp[2] == ':') |
---|
1133 | { |
---|
1134 | /* This is an option that accepts an argument optionally. */ |
---|
1135 | if (*nextchar != '\0') |
---|
1136 | { |
---|
1137 | optarg = nextchar; |
---|
1138 | optind++; |
---|
1139 | } |
---|
1140 | else |
---|
1141 | optarg = NULL; |
---|
1142 | nextchar = NULL; |
---|
1143 | } |
---|
1144 | else |
---|
1145 | { |
---|
1146 | /* This is an option that requires an argument. */ |
---|
1147 | if (*nextchar != '\0') |
---|
1148 | { |
---|
1149 | optarg = nextchar; |
---|
1150 | /* If we end this ARGV-element by taking the rest as an arg, |
---|
1151 | we must advance to the next element now. */ |
---|
1152 | optind++; |
---|
1153 | } |
---|
1154 | else if (optind == argc) |
---|
1155 | { |
---|
1156 | if (print_errors) |
---|
1157 | { |
---|
1158 | /* 1003.2 specifies the format of this message. */ |
---|
1159 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
1160 | char *buf; |
---|
1161 | |
---|
1162 | if (__asprintf (&buf, _("\ |
---|
1163 | %s: option requires an argument -- %c\n"), |
---|
1164 | argv[0], c) >= 0) |
---|
1165 | { |
---|
1166 | if (_IO_fwide (stderr, 0) > 0) |
---|
1167 | __fwprintf (stderr, L"%s", buf); |
---|
1168 | else |
---|
1169 | fputs (buf, stderr); |
---|
1170 | |
---|
1171 | free (buf); |
---|
1172 | } |
---|
1173 | #else |
---|
1174 | fprintf (stderr, |
---|
1175 | _("%s: option requires an argument -- %c\n"), |
---|
1176 | argv[0], c); |
---|
1177 | #endif |
---|
1178 | } |
---|
1179 | optopt = c; |
---|
1180 | if (optstring[0] == ':') |
---|
1181 | c = ':'; |
---|
1182 | else |
---|
1183 | c = '?'; |
---|
1184 | } |
---|
1185 | else |
---|
1186 | /* We already incremented `optind' once; |
---|
1187 | increment it again when taking next ARGV-elt as argument. */ |
---|
1188 | optarg = argv[optind++]; |
---|
1189 | nextchar = NULL; |
---|
1190 | } |
---|
1191 | } |
---|
1192 | return c; |
---|
1193 | } |
---|
1194 | } |
---|
1195 | |
---|
1196 | int |
---|
1197 | getopt (argc, argv, optstring) |
---|
1198 | int argc; |
---|
1199 | char *const *argv; |
---|
1200 | const char *optstring; |
---|
1201 | { |
---|
1202 | return _getopt_internal (argc, argv, optstring, |
---|
1203 | (const struct option *) 0, |
---|
1204 | (int *) 0, |
---|
1205 | 0); |
---|
1206 | } |
---|
1207 | |
---|
1208 | #endif /* Not ELIDE_CODE. */ |
---|
1209 | |
---|
1210 | #ifdef TEST |
---|
1211 | |
---|
1212 | /* Compile with -DTEST to make an executable for use in testing |
---|
1213 | the above definition of `getopt'. */ |
---|
1214 | |
---|
1215 | int |
---|
1216 | main (argc, argv) |
---|
1217 | int argc; |
---|
1218 | char **argv; |
---|
1219 | { |
---|
1220 | int c; |
---|
1221 | int digit_optind = 0; |
---|
1222 | |
---|
1223 | while (1) |
---|
1224 | { |
---|
1225 | int this_option_optind = optind ? optind : 1; |
---|
1226 | |
---|
1227 | c = getopt (argc, argv, "abc:d:0123456789"); |
---|
1228 | if (c == -1) |
---|
1229 | break; |
---|
1230 | |
---|
1231 | switch (c) |
---|
1232 | { |
---|
1233 | case '0': |
---|
1234 | case '1': |
---|
1235 | case '2': |
---|
1236 | case '3': |
---|
1237 | case '4': |
---|
1238 | case '5': |
---|
1239 | case '6': |
---|
1240 | case '7': |
---|
1241 | case '8': |
---|
1242 | case '9': |
---|
1243 | if (digit_optind != 0 && digit_optind != this_option_optind) |
---|
1244 | printf ("digits occur in two different argv-elements.\n"); |
---|
1245 | digit_optind = this_option_optind; |
---|
1246 | printf ("option %c\n", c); |
---|
1247 | break; |
---|
1248 | |
---|
1249 | case 'a': |
---|
1250 | printf ("option a\n"); |
---|
1251 | break; |
---|
1252 | |
---|
1253 | case 'b': |
---|
1254 | printf ("option b\n"); |
---|
1255 | break; |
---|
1256 | |
---|
1257 | case 'c': |
---|
1258 | printf ("option c with value `%s'\n", optarg); |
---|
1259 | break; |
---|
1260 | |
---|
1261 | case '?': |
---|
1262 | break; |
---|
1263 | |
---|
1264 | default: |
---|
1265 | printf ("?? getopt returned character code 0%o ??\n", c); |
---|
1266 | } |
---|
1267 | } |
---|
1268 | |
---|
1269 | if (optind < argc) |
---|
1270 | { |
---|
1271 | printf ("non-option ARGV-elements: "); |
---|
1272 | while (optind < argc) |
---|
1273 | printf ("%s ", argv[optind++]); |
---|
1274 | printf ("\n"); |
---|
1275 | } |
---|
1276 | |
---|
1277 | exit (0); |
---|
1278 | } |
---|
1279 | |
---|
1280 | #endif /* TEST */ |
---|