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272
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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) 1987,88,89,90,91,92,93,94,95,96,98,99,2000,2001,2002,2003,2004,2006,2008
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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 This program is free software: you can redistribute it and/or modify
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10 it under the terms of the GNU General Public License as published by
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11 the Free Software Foundation; either version 3 of the License, or
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12 (at your option) any later version.
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13
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14 This program 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
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17 GNU 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 General Public License
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20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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21
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22 #ifndef _LIBC
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23 # include <config.h>
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24 #endif
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25
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26 #include "getopt.h"
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27
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28 #include <stdio.h>
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29 #include <stdlib.h>
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30 #include <string.h>
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31 #include <unistd.h>
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32
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33 #ifdef _LIBC
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34 # include <libintl.h>
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35 #else
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36 # include "gettext.h"
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37 # define _(msgid) gettext (msgid)
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38 #endif
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39
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40 #if defined _LIBC && defined USE_IN_LIBIO
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41 # include <wchar.h>
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42 #endif
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43
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44 #ifndef attribute_hidden
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45 # define attribute_hidden
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46 #endif
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47
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48 /* Unlike standard Unix `getopt', functions like `getopt_long'
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49 let the user intersperse the options with the other arguments.
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50
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51 As `getopt_long' works, it permutes the elements of ARGV so that,
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52 when it is done, all the options precede everything else. Thus
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53 all application programs are extended to handle flexible argument order.
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54
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55 Using `getopt' or setting the environment variable POSIXLY_CORRECT
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56 disables permutation.
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57 Then the application's behavior is completely standard.
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58
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59 GNU application programs can use a third alternative mode in which
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60 they can distinguish the relative order of options and other arguments. */
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61
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62 #include "getopt_int.h"
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63
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64 /* For communication from `getopt' to the caller.
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65 When `getopt' finds an option that takes an argument,
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66 the argument value is returned here.
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67 Also, when `ordering' is RETURN_IN_ORDER,
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68 each non-option ARGV-element is returned here. */
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69
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70 char *optarg;
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71
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72 /* Index in ARGV of the next element to be scanned.
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73 This is used for communication to and from the caller
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74 and for communication between successive calls to `getopt'.
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75
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76 On entry to `getopt', zero means this is the first call; initialize.
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77
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78 When `getopt' returns -1, this is the index of the first of the
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79 non-option elements that the caller should itself scan.
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80
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81 Otherwise, `optind' communicates from one call to the next
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82 how much of ARGV has been scanned so far. */
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83
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84 /* 1003.2 says this must be 1 before any call. */
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85 int optind = 1;
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86
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87 /* Callers store zero here to inhibit the error message
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88 for unrecognized options. */
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89
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90 int opterr = 1;
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91
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92 /* Set to an option character which was unrecognized.
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93 This must be initialized on some systems to avoid linking in the
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94 system's own getopt implementation. */
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95
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96 int optopt = '?';
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97
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98 /* Keep a global copy of all internal members of getopt_data. */
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99
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100 static struct _getopt_data getopt_data;
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101
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102
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103 #if defined HAVE_DECL_GETENV && !HAVE_DECL_GETENV
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104 extern char *getenv ();
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105 #endif
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106
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107 #ifdef _LIBC
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108 /* Stored original parameters.
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109 XXX This is no good solution. We should rather copy the args so
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110 that we can compare them later. But we must not use malloc(3). */
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111 extern int __libc_argc;
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112 extern char **__libc_argv;
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113
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114 /* Bash 2.0 gives us an environment variable containing flags
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115 indicating ARGV elements that should not be considered arguments. */
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116
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117 # ifdef USE_NONOPTION_FLAGS
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118 /* Defined in getopt_init.c */
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119 extern char *__getopt_nonoption_flags;
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120 # endif
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121
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122 # ifdef USE_NONOPTION_FLAGS
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123 # define SWAP_FLAGS(ch1, ch2) \
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124 if (d->__nonoption_flags_len > 0) \
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125 { \
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126 char __tmp = __getopt_nonoption_flags[ch1]; \
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127 __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
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128 __getopt_nonoption_flags[ch2] = __tmp; \
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129 }
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130 # else
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131 # define SWAP_FLAGS(ch1, ch2)
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132 # endif
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133 #else /* !_LIBC */
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134 # define SWAP_FLAGS(ch1, ch2)
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135 #endif /* _LIBC */
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136
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137 /* Exchange two adjacent subsequences of ARGV.
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138 One subsequence is elements [first_nonopt,last_nonopt)
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139 which contains all the non-options that have been skipped so far.
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140 The other is elements [last_nonopt,optind), which contains all
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141 the options processed since those non-options were skipped.
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142
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143 `first_nonopt' and `last_nonopt' are relocated so that they describe
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144 the new indices of the non-options in ARGV after they are moved. */
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145
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146 static void
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147 exchange (char **argv, struct _getopt_data *d)
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148 {
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149 int bottom = d->__first_nonopt;
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150 int middle = d->__last_nonopt;
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151 int top = d->optind;
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152 char *tem;
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153
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154 /* Exchange the shorter segment with the far end of the longer segment.
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155 That puts the shorter segment into the right place.
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156 It leaves the longer segment in the right place overall,
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157 but it consists of two parts that need to be swapped next. */
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158
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159 #if defined _LIBC && defined USE_NONOPTION_FLAGS
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160 /* First make sure the handling of the `__getopt_nonoption_flags'
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161 string can work normally. Our top argument must be in the range
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162 of the string. */
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163 if (d->__nonoption_flags_len > 0 && top >= d->__nonoption_flags_max_len)
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164 {
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165 /* We must extend the array. The user plays games with us and
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166 presents new arguments. */
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167 char *new_str = malloc (top + 1);
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168 if (new_str == NULL)
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169 d->__nonoption_flags_len = d->__nonoption_flags_max_len = 0;
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170 else
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171 {
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172 memset (__mempcpy (new_str, __getopt_nonoption_flags,
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173 d->__nonoption_flags_max_len),
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174 '\0', top + 1 - d->__nonoption_flags_max_len);
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175 d->__nonoption_flags_max_len = top + 1;
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176 __getopt_nonoption_flags = new_str;
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177 }
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178 }
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179 #endif
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180
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181 while (top > middle && middle > bottom)
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182 {
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183 if (top - middle > middle - bottom)
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184 {
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185 /* Bottom segment is the short one. */
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186 int len = middle - bottom;
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187 register int i;
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188
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189 /* Swap it with the top part of the top segment. */
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190 for (i = 0; i < len; i++)
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191 {
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192 tem = argv[bottom + i];
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193 argv[bottom + i] = argv[top - (middle - bottom) + i];
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194 argv[top - (middle - bottom) + i] = tem;
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195 SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
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196 }
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197 /* Exclude the moved bottom segment from further swapping. */
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198 top -= len;
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199 }
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200 else
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201 {
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202 /* Top segment is the short one. */
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203 int len = top - middle;
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204 register int i;
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205
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206 /* Swap it with the bottom part of the bottom segment. */
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207 for (i = 0; i < len; i++)
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208 {
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209 tem = argv[bottom + i];
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210 argv[bottom + i] = argv[middle + i];
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211 argv[middle + i] = tem;
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212 SWAP_FLAGS (bottom + i, middle + i);
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213 }
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214 /* Exclude the moved top segment from further swapping. */
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215 bottom += len;
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216 }
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217 }
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218
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219 /* Update records for the slots the non-options now occupy. */
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220
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221 d->__first_nonopt += (d->optind - d->__last_nonopt);
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222 d->__last_nonopt = d->optind;
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223 }
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224
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225 /* Initialize the internal data when the first call is made. */
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226
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227 static const char *
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228 _getopt_initialize (int argc, char **argv, const char *optstring,
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229 int posixly_correct, struct _getopt_data *d)
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230 {
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231 /* Start processing options with ARGV-element 1 (since ARGV-element 0
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232 is the program name); the sequence of previously skipped
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233 non-option ARGV-elements is empty. */
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234
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235 d->__first_nonopt = d->__last_nonopt = d->optind;
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236
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237 d->__nextchar = NULL;
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238
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239 d->__posixly_correct = posixly_correct || !!getenv ("POSIXLY_CORRECT");
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240
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241 /* Determine how to handle the ordering of options and nonoptions. */
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242
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243 if (optstring[0] == '-')
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244 {
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245 d->__ordering = RETURN_IN_ORDER;
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246 ++optstring;
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247 }
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248 else if (optstring[0] == '+')
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249 {
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250 d->__ordering = REQUIRE_ORDER;
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251 ++optstring;
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252 }
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253 else if (d->__posixly_correct)
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254 d->__ordering = REQUIRE_ORDER;
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255 else
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256 d->__ordering = PERMUTE;
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257
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258 #if defined _LIBC && defined USE_NONOPTION_FLAGS
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259 if (!d->__posixly_correct
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260 && argc == __libc_argc && argv == __libc_argv)
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261 {
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262 if (d->__nonoption_flags_max_len == 0)
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263 {
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264 if (__getopt_nonoption_flags == NULL
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265 || __getopt_nonoption_flags[0] == '\0')
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266 d->__nonoption_flags_max_len = -1;
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267 else
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268 {
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269 const char *orig_str = __getopt_nonoption_flags;
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270 int len = d->__nonoption_flags_max_len = strlen (orig_str);
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271 if (d->__nonoption_flags_max_len < argc)
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272 d->__nonoption_flags_max_len = argc;
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273 __getopt_nonoption_flags =
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274 (char *) malloc (d->__nonoption_flags_max_len);
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275 if (__getopt_nonoption_flags == NULL)
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276 d->__nonoption_flags_max_len = -1;
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277 else
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278 memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
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279 '\0', d->__nonoption_flags_max_len - len);
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280 }
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281 }
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282 d->__nonoption_flags_len = d->__nonoption_flags_max_len;
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283 }
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284 else
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285 d->__nonoption_flags_len = 0;
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286 #endif
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287
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288 return optstring;
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289 }
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290
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291 /* Scan elements of ARGV (whose length is ARGC) for option characters
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292 given in OPTSTRING.
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293
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294 If an element of ARGV starts with '-', and is not exactly "-" or "--",
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295 then it is an option element. The characters of this element
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296 (aside from the initial '-') are option characters. If `getopt'
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297 is called repeatedly, it returns successively each of the option characters
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298 from each of the option elements.
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299
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300 If `getopt' finds another option character, it returns that character,
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301 updating `optind' and `nextchar' so that the next call to `getopt' can
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302 resume the scan with the following option character or ARGV-element.
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303
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304 If there are no more option characters, `getopt' returns -1.
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305 Then `optind' is the index in ARGV of the first ARGV-element
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306 that is not an option. (The ARGV-elements have been permuted
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307 so that those that are not options now come last.)
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308
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309 OPTSTRING is a string containing the legitimate option characters.
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310 If an option character is seen that is not listed in OPTSTRING,
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311 return '?' after printing an error message. If you set `opterr' to
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312 zero, the error message is suppressed but we still return '?'.
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313
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314 If a char in OPTSTRING is followed by a colon, that means it wants an arg,
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315 so the following text in the same ARGV-element, or the text of the following
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316 ARGV-element, is returned in `optarg'. Two colons mean an option that
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317 wants an optional arg; if there is text in the current ARGV-element,
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318 it is returned in `optarg', otherwise `optarg' is set to zero.
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319
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320 If OPTSTRING starts with `-' or `+', it requests different methods of
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321 handling the non-option ARGV-elements.
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322 See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
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323
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324 Long-named options begin with `--' instead of `-'.
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325 Their names may be abbreviated as long as the abbreviation is unique
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326 or is an exact match for some defined option. If they have an
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327 argument, it follows the option name in the same ARGV-element, separated
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328 from the option name by a `=', or else the in next ARGV-element.
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329 When `getopt' finds a long-named option, it returns 0 if that option's
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330 `flag' field is nonzero, the value of the option's `val' field
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331 if the `flag' field is zero.
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332
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333 LONGOPTS is a vector of `struct option' terminated by an
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334 element containing a name which is zero.
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335
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336 LONGIND returns the index in LONGOPT of the long-named option found.
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337 It is only valid when a long-named option has been found by the most
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338 recent call.
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339
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340 If LONG_ONLY is nonzero, '-' as well as '--' can introduce
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341 long-named options.
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342
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343 If POSIXLY_CORRECT is nonzero, behave as if the POSIXLY_CORRECT
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344 environment variable were set. */
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345
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346 int
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347 _getopt_internal_r (int argc, char **argv, const char *optstring,
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348 const struct option *longopts, int *longind,
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349 int long_only, int posixly_correct, struct _getopt_data *d)
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350 {
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351 int print_errors = d->opterr;
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352 if (optstring[0] == ':')
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353 print_errors = 0;
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354
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355 if (argc < 1)
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356 return -1;
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357
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358 d->optarg = NULL;
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359
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360 if (d->optind == 0 || !d->__initialized)
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361 {
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362 if (d->optind == 0)
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363 d->optind = 1; /* Don't scan ARGV[0], the program name. */
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364 optstring = _getopt_initialize (argc, argv, optstring,
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365 posixly_correct, d);
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366 d->__initialized = 1;
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367 }
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368
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369 /* Test whether ARGV[optind] points to a non-option argument.
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370 Either it does not have option syntax, or there is an environment flag
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371 from the shell indicating it is not an option. The later information
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372 is only used when the used in the GNU libc. */
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373 #if defined _LIBC && defined USE_NONOPTION_FLAGS
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374 # define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0' \
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375 || (d->optind < d->__nonoption_flags_len \
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376 && __getopt_nonoption_flags[d->optind] == '1'))
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377 #else
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378 # define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0')
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379 #endif
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380
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381 if (d->__nextchar == NULL || *d->__nextchar == '\0')
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382 {
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383 /* Advance to the next ARGV-element. */
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384
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385 /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
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386 moved back by the user (who may also have changed the arguments). */
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387 if (d->__last_nonopt > d->optind)
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388 d->__last_nonopt = d->optind;
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389 if (d->__first_nonopt > d->optind)
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390 d->__first_nonopt = d->optind;
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391
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392 if (d->__ordering == PERMUTE)
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|
393 {
|
|
|
394 /* If we have just processed some options following some non-options,
|
|
|
395 exchange them so that the options come first. */
|
|
|
396
|
|
|
397 if (d->__first_nonopt != d->__last_nonopt
|
|
|
398 && d->__last_nonopt != d->optind)
|
|
|
399 exchange ((char **) argv, d);
|
|
|
400 else if (d->__last_nonopt != d->optind)
|
|
|
401 d->__first_nonopt = d->optind;
|
|
|
402
|
|
|
403 /* Skip any additional non-options
|
|
|
404 and extend the range of non-options previously skipped. */
|
|
|
405
|
|
|
406 while (d->optind < argc && NONOPTION_P)
|
|
|
407 d->optind++;
|
|
|
408 d->__last_nonopt = d->optind;
|
|
|
409 }
|
|
|
410
|
|
|
411 /* The special ARGV-element `--' means premature end of options.
|
|
|
412 Skip it like a null option,
|
|
|
413 then exchange with previous non-options as if it were an option,
|
|
|
414 then skip everything else like a non-option. */
|
|
|
415
|
|
|
416 if (d->optind != argc && !strcmp (argv[d->optind], "--"))
|
|
|
417 {
|
|
|
418 d->optind++;
|
|
|
419
|
|
|
420 if (d->__first_nonopt != d->__last_nonopt
|
|
|
421 && d->__last_nonopt != d->optind)
|
|
|
422 exchange ((char **) argv, d);
|
|
|
423 else if (d->__first_nonopt == d->__last_nonopt)
|
|
|
424 d->__first_nonopt = d->optind;
|
|
|
425 d->__last_nonopt = argc;
|
|
|
426
|
|
|
427 d->optind = argc;
|
|
|
428 }
|
|
|
429
|
|
|
430 /* If we have done all the ARGV-elements, stop the scan
|
|
|
431 and back over any non-options that we skipped and permuted. */
|
|
|
432
|
|
|
433 if (d->optind == argc)
|
|
|
434 {
|
|
|
435 /* Set the next-arg-index to point at the non-options
|
|
|
436 that we previously skipped, so the caller will digest them. */
|
|
|
437 if (d->__first_nonopt != d->__last_nonopt)
|
|
|
438 d->optind = d->__first_nonopt;
|
|
|
439 return -1;
|
|
|
440 }
|
|
|
441
|
|
|
442 /* If we have come to a non-option and did not permute it,
|
|
|
443 either stop the scan or describe it to the caller and pass it by. */
|
|
|
444
|
|
|
445 if (NONOPTION_P)
|
|
|
446 {
|
|
|
447 if (d->__ordering == REQUIRE_ORDER)
|
|
|
448 return -1;
|
|
|
449 d->optarg = argv[d->optind++];
|
|
|
450 return 1;
|
|
|
451 }
|
|
|
452
|
|
|
453 /* We have found another option-ARGV-element.
|
|
|
454 Skip the initial punctuation. */
|
|
|
455
|
|
|
456 d->__nextchar = (argv[d->optind] + 1
|
|
|
457 + (longopts != NULL && argv[d->optind][1] == '-'));
|
|
|
458 }
|
|
|
459
|
|
|
460 /* Decode the current option-ARGV-element. */
|
|
|
461
|
|
|
462 /* Check whether the ARGV-element is a long option.
|
|
|
463
|
|
|
464 If long_only and the ARGV-element has the form "-f", where f is
|
|
|
465 a valid short option, don't consider it an abbreviated form of
|
|
|
466 a long option that starts with f. Otherwise there would be no
|
|
|
467 way to give the -f short option.
|
|
|
468
|
|
|
469 On the other hand, if there's a long option "fubar" and
|
|
|
470 the ARGV-element is "-fu", do consider that an abbreviation of
|
|
|
471 the long option, just like "--fu", and not "-f" with arg "u".
|
|
|
472
|
|
|
473 This distinction seems to be the most useful approach. */
|
|
|
474
|
|
|
475 if (longopts != NULL
|
|
|
476 && (argv[d->optind][1] == '-'
|
|
|
477 || (long_only && (argv[d->optind][2]
|
|
|
478 || !strchr (optstring, argv[d->optind][1])))))
|
|
|
479 {
|
|
|
480 char *nameend;
|
|
|
481 const struct option *p;
|
|
|
482 const struct option *pfound = NULL;
|
|
|
483 int exact = 0;
|
|
|
484 int ambig = 0;
|
|
|
485 int indfound = -1;
|
|
|
486 int option_index;
|
|
|
487
|
|
|
488 for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++)
|
|
|
489 /* Do nothing. */ ;
|
|
|
490
|
|
|
491 /* Test all long options for either exact match
|
|
|
492 or abbreviated matches. */
|
|
|
493 for (p = longopts, option_index = 0; p->name; p++, option_index++)
|
|
|
494 if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
|
|
|
495 {
|
|
|
496 if ((unsigned int) (nameend - d->__nextchar)
|
|
|
497 == (unsigned int) strlen (p->name))
|
|
|
498 {
|
|
|
499 /* Exact match found. */
|
|
|
500 pfound = p;
|
|
|
501 indfound = option_index;
|
|
|
502 exact = 1;
|
|
|
503 break;
|
|
|
504 }
|
|
|
505 else if (pfound == NULL)
|
|
|
506 {
|
|
|
507 /* First nonexact match found. */
|
|
|
508 pfound = p;
|
|
|
509 indfound = option_index;
|
|
|
510 }
|
|
|
511 else if (long_only
|
|
|
512 || pfound->has_arg != p->has_arg
|
|
|
513 || pfound->flag != p->flag
|
|
|
514 || pfound->val != p->val)
|
|
|
515 /* Second or later nonexact match found. */
|
|
|
516 ambig = 1;
|
|
|
517 }
|
|
|
518
|
|
|
519 if (ambig && !exact)
|
|
|
520 {
|
|
|
521 if (print_errors)
|
|
|
522 {
|
|
|
523 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
524 char *buf;
|
|
|
525
|
|
|
526 if (__asprintf (&buf, _("%s: option `%s' is ambiguous\n"),
|
|
|
527 argv[0], argv[d->optind]) >= 0)
|
|
|
528 {
|
|
|
529 _IO_flockfile (stderr);
|
|
|
530
|
|
|
531 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
532 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
533
|
|
|
534 __fxprintf (NULL, "%s", buf);
|
|
|
535
|
|
|
536 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
537 _IO_funlockfile (stderr);
|
|
|
538
|
|
|
539 free (buf);
|
|
|
540 }
|
|
|
541 #else
|
|
|
542 fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
|
|
|
543 argv[0], argv[d->optind]);
|
|
|
544 #endif
|
|
|
545 }
|
|
|
546 d->__nextchar += strlen (d->__nextchar);
|
|
|
547 d->optind++;
|
|
|
548 d->optopt = 0;
|
|
|
549 return '?';
|
|
|
550 }
|
|
|
551
|
|
|
552 if (pfound != NULL)
|
|
|
553 {
|
|
|
554 option_index = indfound;
|
|
|
555 d->optind++;
|
|
|
556 if (*nameend)
|
|
|
557 {
|
|
|
558 /* Don't test has_arg with >, because some C compilers don't
|
|
|
559 allow it to be used on enums. */
|
|
|
560 if (pfound->has_arg)
|
|
|
561 d->optarg = nameend + 1;
|
|
|
562 else
|
|
|
563 {
|
|
|
564 if (print_errors)
|
|
|
565 {
|
|
|
566 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
567 char *buf;
|
|
|
568 int n;
|
|
|
569 #endif
|
|
|
570
|
|
|
571 if (argv[d->optind - 1][1] == '-')
|
|
|
572 {
|
|
|
573 /* --option */
|
|
|
574 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
575 n = __asprintf (&buf, _("\
|
|
|
576 %s: option `--%s' doesn't allow an argument\n"),
|
|
|
577 argv[0], pfound->name);
|
|
|
578 #else
|
|
|
579 fprintf (stderr, _("\
|
|
|
580 %s: option `--%s' doesn't allow an argument\n"),
|
|
|
581 argv[0], pfound->name);
|
|
|
582 #endif
|
|
|
583 }
|
|
|
584 else
|
|
|
585 {
|
|
|
586 /* +option or -option */
|
|
|
587 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
588 n = __asprintf (&buf, _("\
|
|
|
589 %s: option `%c%s' doesn't allow an argument\n"),
|
|
|
590 argv[0], argv[d->optind - 1][0],
|
|
|
591 pfound->name);
|
|
|
592 #else
|
|
|
593 fprintf (stderr, _("\
|
|
|
594 %s: option `%c%s' doesn't allow an argument\n"),
|
|
|
595 argv[0], argv[d->optind - 1][0],
|
|
|
596 pfound->name);
|
|
|
597 #endif
|
|
|
598 }
|
|
|
599
|
|
|
600 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
601 if (n >= 0)
|
|
|
602 {
|
|
|
603 _IO_flockfile (stderr);
|
|
|
604
|
|
|
605 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
606 ((_IO_FILE *) stderr)->_flags2
|
|
|
607 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
608
|
|
|
609 __fxprintf (NULL, "%s", buf);
|
|
|
610
|
|
|
611 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
612 _IO_funlockfile (stderr);
|
|
|
613
|
|
|
614 free (buf);
|
|
|
615 }
|
|
|
616 #endif
|
|
|
617 }
|
|
|
618
|
|
|
619 d->__nextchar += strlen (d->__nextchar);
|
|
|
620
|
|
|
621 d->optopt = pfound->val;
|
|
|
622 return '?';
|
|
|
623 }
|
|
|
624 }
|
|
|
625 else if (pfound->has_arg == 1)
|
|
|
626 {
|
|
|
627 if (d->optind < argc)
|
|
|
628 d->optarg = argv[d->optind++];
|
|
|
629 else
|
|
|
630 {
|
|
|
631 if (print_errors)
|
|
|
632 {
|
|
|
633 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
634 char *buf;
|
|
|
635
|
|
|
636 if (__asprintf (&buf, _("\
|
|
|
637 %s: option `%s' requires an argument\n"),
|
|
|
638 argv[0], argv[d->optind - 1]) >= 0)
|
|
|
639 {
|
|
|
640 _IO_flockfile (stderr);
|
|
|
641
|
|
|
642 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
643 ((_IO_FILE *) stderr)->_flags2
|
|
|
644 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
645
|
|
|
646 __fxprintf (NULL, "%s", buf);
|
|
|
647
|
|
|
648 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
649 _IO_funlockfile (stderr);
|
|
|
650
|
|
|
651 free (buf);
|
|
|
652 }
|
|
|
653 #else
|
|
|
654 fprintf (stderr,
|
|
|
655 _("%s: option `%s' requires an argument\n"),
|
|
|
656 argv[0], argv[d->optind - 1]);
|
|
|
657 #endif
|
|
|
658 }
|
|
|
659 d->__nextchar += strlen (d->__nextchar);
|
|
|
660 d->optopt = pfound->val;
|
|
|
661 return optstring[0] == ':' ? ':' : '?';
|
|
|
662 }
|
|
|
663 }
|
|
|
664 d->__nextchar += strlen (d->__nextchar);
|
|
|
665 if (longind != NULL)
|
|
|
666 *longind = option_index;
|
|
|
667 if (pfound->flag)
|
|
|
668 {
|
|
|
669 *(pfound->flag) = pfound->val;
|
|
|
670 return 0;
|
|
|
671 }
|
|
|
672 return pfound->val;
|
|
|
673 }
|
|
|
674
|
|
|
675 /* Can't find it as a long option. If this is not getopt_long_only,
|
|
|
676 or the option starts with '--' or is not a valid short
|
|
|
677 option, then it's an error.
|
|
|
678 Otherwise interpret it as a short option. */
|
|
|
679 if (!long_only || argv[d->optind][1] == '-'
|
|
|
680 || strchr (optstring, *d->__nextchar) == NULL)
|
|
|
681 {
|
|
|
682 if (print_errors)
|
|
|
683 {
|
|
|
684 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
685 char *buf;
|
|
|
686 int n;
|
|
|
687 #endif
|
|
|
688
|
|
|
689 if (argv[d->optind][1] == '-')
|
|
|
690 {
|
|
|
691 /* --option */
|
|
|
692 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
693 n = __asprintf (&buf, _("%s: unrecognized option `--%s'\n"),
|
|
|
694 argv[0], d->__nextchar);
|
|
|
695 #else
|
|
|
696 fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
|
|
|
697 argv[0], d->__nextchar);
|
|
|
698 #endif
|
|
|
699 }
|
|
|
700 else
|
|
|
701 {
|
|
|
702 /* +option or -option */
|
|
|
703 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
704 n = __asprintf (&buf, _("%s: unrecognized option `%c%s'\n"),
|
|
|
705 argv[0], argv[d->optind][0], d->__nextchar);
|
|
|
706 #else
|
|
|
707 fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
|
|
|
708 argv[0], argv[d->optind][0], d->__nextchar);
|
|
|
709 #endif
|
|
|
710 }
|
|
|
711
|
|
|
712 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
713 if (n >= 0)
|
|
|
714 {
|
|
|
715 _IO_flockfile (stderr);
|
|
|
716
|
|
|
717 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
718 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
719
|
|
|
720 __fxprintf (NULL, "%s", buf);
|
|
|
721
|
|
|
722 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
723 _IO_funlockfile (stderr);
|
|
|
724
|
|
|
725 free (buf);
|
|
|
726 }
|
|
|
727 #endif
|
|
|
728 }
|
|
|
729 d->__nextchar = (char *) "";
|
|
|
730 d->optind++;
|
|
|
731 d->optopt = 0;
|
|
|
732 return '?';
|
|
|
733 }
|
|
|
734 }
|
|
|
735
|
|
|
736 /* Look at and handle the next short option-character. */
|
|
|
737
|
|
|
738 {
|
|
|
739 char c = *d->__nextchar++;
|
|
|
740 char *temp = strchr (optstring, c);
|
|
|
741
|
|
|
742 /* Increment `optind' when we start to process its last character. */
|
|
|
743 if (*d->__nextchar == '\0')
|
|
|
744 ++d->optind;
|
|
|
745
|
|
|
746 if (temp == NULL || c == ':')
|
|
|
747 {
|
|
|
748 if (print_errors)
|
|
|
749 {
|
|
|
750 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
751 char *buf;
|
|
|
752 int n;
|
|
|
753 #endif
|
|
|
754
|
|
|
755 if (d->__posixly_correct)
|
|
|
756 {
|
|
|
757 /* 1003.2 specifies the format of this message. */
|
|
|
758 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
759 n = __asprintf (&buf, _("%s: illegal option -- %c\n"),
|
|
|
760 argv[0], c);
|
|
|
761 #else
|
|
|
762 fprintf (stderr, _("%s: illegal option -- %c\n"), argv[0], c);
|
|
|
763 #endif
|
|
|
764 }
|
|
|
765 else
|
|
|
766 {
|
|
|
767 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
768 n = __asprintf (&buf, _("%s: invalid option -- %c\n"),
|
|
|
769 argv[0], c);
|
|
|
770 #else
|
|
|
771 fprintf (stderr, _("%s: invalid option -- %c\n"), argv[0], c);
|
|
|
772 #endif
|
|
|
773 }
|
|
|
774
|
|
|
775 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
776 if (n >= 0)
|
|
|
777 {
|
|
|
778 _IO_flockfile (stderr);
|
|
|
779
|
|
|
780 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
781 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
782
|
|
|
783 __fxprintf (NULL, "%s", buf);
|
|
|
784
|
|
|
785 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
786 _IO_funlockfile (stderr);
|
|
|
787
|
|
|
788 free (buf);
|
|
|
789 }
|
|
|
790 #endif
|
|
|
791 }
|
|
|
792 d->optopt = c;
|
|
|
793 return '?';
|
|
|
794 }
|
|
|
795 /* Convenience. Treat POSIX -W foo same as long option --foo */
|
|
|
796 if (temp[0] == 'W' && temp[1] == ';')
|
|
|
797 {
|
|
|
798 char *nameend;
|
|
|
799 const struct option *p;
|
|
|
800 const struct option *pfound = NULL;
|
|
|
801 int exact = 0;
|
|
|
802 int ambig = 0;
|
|
|
803 int indfound = 0;
|
|
|
804 int option_index;
|
|
|
805
|
|
|
806 /* This is an option that requires an argument. */
|
|
|
807 if (*d->__nextchar != '\0')
|
|
|
808 {
|
|
|
809 d->optarg = d->__nextchar;
|
|
|
810 /* If we end this ARGV-element by taking the rest as an arg,
|
|
|
811 we must advance to the next element now. */
|
|
|
812 d->optind++;
|
|
|
813 }
|
|
|
814 else if (d->optind == argc)
|
|
|
815 {
|
|
|
816 if (print_errors)
|
|
|
817 {
|
|
|
818 /* 1003.2 specifies the format of this message. */
|
|
|
819 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
820 char *buf;
|
|
|
821
|
|
|
822 if (__asprintf (&buf,
|
|
|
823 _("%s: option requires an argument -- %c\n"),
|
|
|
824 argv[0], c) >= 0)
|
|
|
825 {
|
|
|
826 _IO_flockfile (stderr);
|
|
|
827
|
|
|
828 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
829 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
830
|
|
|
831 __fxprintf (NULL, "%s", buf);
|
|
|
832
|
|
|
833 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
834 _IO_funlockfile (stderr);
|
|
|
835
|
|
|
836 free (buf);
|
|
|
837 }
|
|
|
838 #else
|
|
|
839 fprintf (stderr, _("%s: option requires an argument -- %c\n"),
|
|
|
840 argv[0], c);
|
|
|
841 #endif
|
|
|
842 }
|
|
|
843 d->optopt = c;
|
|
|
844 if (optstring[0] == ':')
|
|
|
845 c = ':';
|
|
|
846 else
|
|
|
847 c = '?';
|
|
|
848 return c;
|
|
|
849 }
|
|
|
850 else
|
|
|
851 /* We already incremented `d->optind' once;
|
|
|
852 increment it again when taking next ARGV-elt as argument. */
|
|
|
853 d->optarg = argv[d->optind++];
|
|
|
854
|
|
|
855 /* optarg is now the argument, see if it's in the
|
|
|
856 table of longopts. */
|
|
|
857
|
|
|
858 for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '=';
|
|
|
859 nameend++)
|
|
|
860 /* Do nothing. */ ;
|
|
|
861
|
|
|
862 /* Test all long options for either exact match
|
|
|
863 or abbreviated matches. */
|
|
|
864 for (p = longopts, option_index = 0; p->name; p++, option_index++)
|
|
|
865 if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
|
|
|
866 {
|
|
|
867 if ((unsigned int) (nameend - d->__nextchar) == strlen (p->name))
|
|
|
868 {
|
|
|
869 /* Exact match found. */
|
|
|
870 pfound = p;
|
|
|
871 indfound = option_index;
|
|
|
872 exact = 1;
|
|
|
873 break;
|
|
|
874 }
|
|
|
875 else if (pfound == NULL)
|
|
|
876 {
|
|
|
877 /* First nonexact match found. */
|
|
|
878 pfound = p;
|
|
|
879 indfound = option_index;
|
|
|
880 }
|
|
|
881 else
|
|
|
882 /* Second or later nonexact match found. */
|
|
|
883 ambig = 1;
|
|
|
884 }
|
|
|
885 if (ambig && !exact)
|
|
|
886 {
|
|
|
887 if (print_errors)
|
|
|
888 {
|
|
|
889 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
890 char *buf;
|
|
|
891
|
|
|
892 if (__asprintf (&buf, _("%s: option `-W %s' is ambiguous\n"),
|
|
|
893 argv[0], argv[d->optind]) >= 0)
|
|
|
894 {
|
|
|
895 _IO_flockfile (stderr);
|
|
|
896
|
|
|
897 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
898 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
899
|
|
|
900 __fxprintf (NULL, "%s", buf);
|
|
|
901
|
|
|
902 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
903 _IO_funlockfile (stderr);
|
|
|
904
|
|
|
905 free (buf);
|
|
|
906 }
|
|
|
907 #else
|
|
|
908 fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
|
|
|
909 argv[0], argv[d->optind]);
|
|
|
910 #endif
|
|
|
911 }
|
|
|
912 d->__nextchar += strlen (d->__nextchar);
|
|
|
913 d->optind++;
|
|
|
914 return '?';
|
|
|
915 }
|
|
|
916 if (pfound != NULL)
|
|
|
917 {
|
|
|
918 option_index = indfound;
|
|
|
919 if (*nameend)
|
|
|
920 {
|
|
|
921 /* Don't test has_arg with >, because some C compilers don't
|
|
|
922 allow it to be used on enums. */
|
|
|
923 if (pfound->has_arg)
|
|
|
924 d->optarg = nameend + 1;
|
|
|
925 else
|
|
|
926 {
|
|
|
927 if (print_errors)
|
|
|
928 {
|
|
|
929 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
930 char *buf;
|
|
|
931
|
|
|
932 if (__asprintf (&buf, _("\
|
|
|
933 %s: option `-W %s' doesn't allow an argument\n"),
|
|
|
934 argv[0], pfound->name) >= 0)
|
|
|
935 {
|
|
|
936 _IO_flockfile (stderr);
|
|
|
937
|
|
|
938 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
939 ((_IO_FILE *) stderr)->_flags2
|
|
|
940 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
941
|
|
|
942 __fxprintf (NULL, "%s", buf);
|
|
|
943
|
|
|
944 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
945 _IO_funlockfile (stderr);
|
|
|
946
|
|
|
947 free (buf);
|
|
|
948 }
|
|
|
949 #else
|
|
|
950 fprintf (stderr, _("\
|
|
|
951 %s: option `-W %s' doesn't allow an argument\n"),
|
|
|
952 argv[0], pfound->name);
|
|
|
953 #endif
|
|
|
954 }
|
|
|
955
|
|
|
956 d->__nextchar += strlen (d->__nextchar);
|
|
|
957 return '?';
|
|
|
958 }
|
|
|
959 }
|
|
|
960 else if (pfound->has_arg == 1)
|
|
|
961 {
|
|
|
962 if (d->optind < argc)
|
|
|
963 d->optarg = argv[d->optind++];
|
|
|
964 else
|
|
|
965 {
|
|
|
966 if (print_errors)
|
|
|
967 {
|
|
|
968 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
969 char *buf;
|
|
|
970
|
|
|
971 if (__asprintf (&buf, _("\
|
|
|
972 %s: option `%s' requires an argument\n"),
|
|
|
973 argv[0], argv[d->optind - 1]) >= 0)
|
|
|
974 {
|
|
|
975 _IO_flockfile (stderr);
|
|
|
976
|
|
|
977 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
978 ((_IO_FILE *) stderr)->_flags2
|
|
|
979 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
980
|
|
|
981 __fxprintf (NULL, "%s", buf);
|
|
|
982
|
|
|
983 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
984 _IO_funlockfile (stderr);
|
|
|
985
|
|
|
986 free (buf);
|
|
|
987 }
|
|
|
988 #else
|
|
|
989 fprintf (stderr,
|
|
|
990 _("%s: option `%s' requires an argument\n"),
|
|
|
991 argv[0], argv[d->optind - 1]);
|
|
|
992 #endif
|
|
|
993 }
|
|
|
994 d->__nextchar += strlen (d->__nextchar);
|
|
|
995 return optstring[0] == ':' ? ':' : '?';
|
|
|
996 }
|
|
|
997 }
|
|
|
998 d->__nextchar += strlen (d->__nextchar);
|
|
|
999 if (longind != NULL)
|
|
|
1000 *longind = option_index;
|
|
|
1001 if (pfound->flag)
|
|
|
1002 {
|
|
|
1003 *(pfound->flag) = pfound->val;
|
|
|
1004 return 0;
|
|
|
1005 }
|
|
|
1006 return pfound->val;
|
|
|
1007 }
|
|
|
1008 d->__nextchar = NULL;
|
|
|
1009 return 'W'; /* Let the application handle it. */
|
|
|
1010 }
|
|
|
1011 if (temp[1] == ':')
|
|
|
1012 {
|
|
|
1013 if (temp[2] == ':')
|
|
|
1014 {
|
|
|
1015 /* This is an option that accepts an argument optionally. */
|
|
|
1016 if (*d->__nextchar != '\0')
|
|
|
1017 {
|
|
|
1018 d->optarg = d->__nextchar;
|
|
|
1019 d->optind++;
|
|
|
1020 }
|
|
|
1021 else
|
|
|
1022 d->optarg = NULL;
|
|
|
1023 d->__nextchar = NULL;
|
|
|
1024 }
|
|
|
1025 else
|
|
|
1026 {
|
|
|
1027 /* This is an option that requires an argument. */
|
|
|
1028 if (*d->__nextchar != '\0')
|
|
|
1029 {
|
|
|
1030 d->optarg = d->__nextchar;
|
|
|
1031 /* If we end this ARGV-element by taking the rest as an arg,
|
|
|
1032 we must advance to the next element now. */
|
|
|
1033 d->optind++;
|
|
|
1034 }
|
|
|
1035 else if (d->optind == argc)
|
|
|
1036 {
|
|
|
1037 if (print_errors)
|
|
|
1038 {
|
|
|
1039 /* 1003.2 specifies the format of this message. */
|
|
|
1040 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
1041 char *buf;
|
|
|
1042
|
|
|
1043 if (__asprintf (&buf, _("\
|
|
|
1044 %s: option requires an argument -- %c\n"),
|
|
|
1045 argv[0], c) >= 0)
|
|
|
1046 {
|
|
|
1047 _IO_flockfile (stderr);
|
|
|
1048
|
|
|
1049 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
1050 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
1051
|
|
|
1052 __fxprintf (NULL, "%s", buf);
|
|
|
1053
|
|
|
1054 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
1055 _IO_funlockfile (stderr);
|
|
|
1056
|
|
|
1057 free (buf);
|
|
|
1058 }
|
|
|
1059 #else
|
|
|
1060 fprintf (stderr,
|
|
|
1061 _("%s: option requires an argument -- %c\n"),
|
|
|
1062 argv[0], c);
|
|
|
1063 #endif
|
|
|
1064 }
|
|
|
1065 d->optopt = c;
|
|
|
1066 if (optstring[0] == ':')
|
|
|
1067 c = ':';
|
|
|
1068 else
|
|
|
1069 c = '?';
|
|
|
1070 }
|
|
|
1071 else
|
|
|
1072 /* We already incremented `optind' once;
|
|
|
1073 increment it again when taking next ARGV-elt as argument. */
|
|
|
1074 d->optarg = argv[d->optind++];
|
|
|
1075 d->__nextchar = NULL;
|
|
|
1076 }
|
|
|
1077 }
|
|
|
1078 return c;
|
|
|
1079 }
|
|
|
1080 }
|
|
|
1081
|
|
|
1082 int
|
|
|
1083 _getopt_internal (int argc, char **argv, const char *optstring,
|
|
|
1084 const struct option *longopts, int *longind,
|
|
|
1085 int long_only, int posixly_correct)
|
|
|
1086 {
|
|
|
1087 int result;
|
|
|
1088
|
|
|
1089 getopt_data.optind = optind;
|
|
|
1090 getopt_data.opterr = opterr;
|
|
|
1091
|
|
|
1092 result = _getopt_internal_r (argc, argv, optstring, longopts, longind,
|
|
|
1093 long_only, posixly_correct, &getopt_data);
|
|
|
1094
|
|
|
1095 optind = getopt_data.optind;
|
|
|
1096 optarg = getopt_data.optarg;
|
|
|
1097 optopt = getopt_data.optopt;
|
|
|
1098
|
|
|
1099 return result;
|
|
|
1100 }
|
|
|
1101
|
|
|
1102 /* glibc gets a LSB-compliant getopt.
|
|
|
1103 Standalone applications get a POSIX-compliant getopt. */
|
|
|
1104 #if _LIBC
|
|
|
1105 enum { POSIXLY_CORRECT = 0 };
|
|
|
1106 #else
|
|
|
1107 enum { POSIXLY_CORRECT = 1 };
|
|
|
1108 #endif
|
|
|
1109
|
|
|
1110 int
|
|
|
1111 getopt (int argc, char *const *argv, const char *optstring)
|
|
|
1112 {
|
|
|
1113 return _getopt_internal (argc, (char **) argv, optstring, NULL, NULL, 0,
|
|
|
1114 POSIXLY_CORRECT);
|
|
|
1115 }
|
|
|
1116
|
|
|
1117
|
|
|
1118 #ifdef TEST
|
|
|
1119
|
|
|
1120 /* Compile with -DTEST to make an executable for use in testing
|
|
|
1121 the above definition of `getopt'. */
|
|
|
1122
|
|
|
1123 int
|
|
|
1124 main (int argc, char **argv)
|
|
|
1125 {
|
|
|
1126 int c;
|
|
|
1127 int digit_optind = 0;
|
|
|
1128
|
|
|
1129 while (1)
|
|
|
1130 {
|
|
|
1131 int this_option_optind = optind ? optind : 1;
|
|
|
1132
|
|
|
1133 c = getopt (argc, argv, "abc:d:0123456789");
|
|
|
1134 if (c == -1)
|
|
|
1135 break;
|
|
|
1136
|
|
|
1137 switch (c)
|
|
|
1138 {
|
|
|
1139 case '0':
|
|
|
1140 case '1':
|
|
|
1141 case '2':
|
|
|
1142 case '3':
|
|
|
1143 case '4':
|
|
|
1144 case '5':
|
|
|
1145 case '6':
|
|
|
1146 case '7':
|
|
|
1147 case '8':
|
|
|
1148 case '9':
|
|
|
1149 if (digit_optind != 0 && digit_optind != this_option_optind)
|
|
|
1150 printf ("digits occur in two different argv-elements.\n");
|
|
|
1151 digit_optind = this_option_optind;
|
|
|
1152 printf ("option %c\n", c);
|
|
|
1153 break;
|
|
|
1154
|
|
|
1155 case 'a':
|
|
|
1156 printf ("option a\n");
|
|
|
1157 break;
|
|
|
1158
|
|
|
1159 case 'b':
|
|
|
1160 printf ("option b\n");
|
|
|
1161 break;
|
|
|
1162
|
|
|
1163 case 'c':
|
|
|
1164 printf ("option c with value `%s'\n", optarg);
|
|
|
1165 break;
|
|
|
1166
|
|
|
1167 case '?':
|
|
|
1168 break;
|
|
|
1169
|
|
|
1170 default:
|
|
|
1171 printf ("?? getopt returned character code 0%o ??\n", c);
|
|
|
1172 }
|
|
|
1173 }
|
|
|
1174
|
|
|
1175 if (optind < argc)
|
|
|
1176 {
|
|
|
1177 printf ("non-option ARGV-elements: ");
|
|
|
1178 while (optind < argc)
|
|
|
1179 printf ("%s ", argv[optind++]);
|
|
|
1180 printf ("\n");
|
|
|
1181 }
|
|
|
1182
|
|
|
1183 exit (0);
|
|
|
1184 }
|
|
|
1185
|
|
|
1186 #endif /* TEST */
|
