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434
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1 /* Getopt for GNU.
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2 NOTE: getopt is 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) 1987-1996, 1998-2004, 2006, 2008-2010 Free Software
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6 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 /* This version of `getopt' appears to the caller like standard Unix `getopt'
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49 but it behaves differently for the user, since it allows the user
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50 to intersperse the options with the other arguments.
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51
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52 As `getopt_long' works, it permutes the elements of ARGV so that,
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53 when it is done, all the options precede everything else. Thus
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54 all application programs are extended to handle flexible argument order.
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55
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56 Using `getopt' or setting the environment variable POSIXLY_CORRECT
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57 disables permutation.
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58 Then the behavior is completely standard.
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59
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60 GNU application programs can use a third alternative mode in which
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61 they can distinguish the relative order of options and other arguments. */
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62
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63 #include "getopt_int.h"
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64
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65 /* For communication from `getopt' to the caller.
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66 When `getopt' finds an option that takes an argument,
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67 the argument value is returned here.
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68 Also, when `ordering' is RETURN_IN_ORDER,
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69 each non-option ARGV-element is returned here. */
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70
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71 char *optarg;
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72
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73 /* Index in ARGV of the next element to be scanned.
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74 This is used for communication to and from the caller
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75 and for communication between successive calls to `getopt'.
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76
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77 On entry to `getopt', zero means this is the first call; initialize.
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78
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79 When `getopt' returns -1, this is the index of the first of the
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80 non-option elements that the caller should itself scan.
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81
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82 Otherwise, `optind' communicates from one call to the next
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83 how much of ARGV has been scanned so far. */
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84
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85 /* 1003.2 says this must be 1 before any call. */
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86 int optind = 1;
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87
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88 /* Callers store zero here to inhibit the error message
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89 for unrecognized options. */
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90
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91 int opterr = 1;
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92
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93 /* Set to an option character which was unrecognized.
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94 This must be initialized on some systems to avoid linking in the
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95 system's own getopt implementation. */
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96
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97 int optopt = '?';
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98
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99 /* Keep a global copy of all internal members of getopt_data. */
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100
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101 static struct _getopt_data getopt_data;
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102
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103
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104 #if defined HAVE_DECL_GETENV && !HAVE_DECL_GETENV
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105 extern char *getenv ();
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106 #endif
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107
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108 #ifdef _LIBC
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109 /* Stored original parameters.
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110 XXX This is no good solution. We should rather copy the args so
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111 that we can compare them later. But we must not use malloc(3). */
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112 extern int __libc_argc;
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113 extern char **__libc_argv;
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114
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115 /* Bash 2.0 gives us an environment variable containing flags
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116 indicating ARGV elements that should not be considered arguments. */
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117
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118 # ifdef USE_NONOPTION_FLAGS
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119 /* Defined in getopt_init.c */
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120 extern char *__getopt_nonoption_flags;
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121 # endif
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122
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123 # ifdef USE_NONOPTION_FLAGS
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124 # define SWAP_FLAGS(ch1, ch2) \
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125 if (d->__nonoption_flags_len > 0) \
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126 { \
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127 char __tmp = __getopt_nonoption_flags[ch1]; \
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128 __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
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129 __getopt_nonoption_flags[ch2] = __tmp; \
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130 }
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131 # else
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132 # define SWAP_FLAGS(ch1, ch2)
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133 # endif
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134 #else /* !_LIBC */
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135 # define SWAP_FLAGS(ch1, ch2)
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136 #endif /* _LIBC */
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137
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138 /* Exchange two adjacent subsequences of ARGV.
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139 One subsequence is elements [first_nonopt,last_nonopt)
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140 which contains all the non-options that have been skipped so far.
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141 The other is elements [last_nonopt,optind), which contains all
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142 the options processed since those non-options were skipped.
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143
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144 `first_nonopt' and `last_nonopt' are relocated so that they describe
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145 the new indices of the non-options in ARGV after they are moved. */
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146
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147 static void
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148 exchange (char **argv, struct _getopt_data *d)
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149 {
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150 int bottom = d->__first_nonopt;
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151 int middle = d->__last_nonopt;
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152 int top = d->optind;
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153 char *tem;
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154
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155 /* Exchange the shorter segment with the far end of the longer segment.
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156 That puts the shorter segment into the right place.
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157 It leaves the longer segment in the right place overall,
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158 but it consists of two parts that need to be swapped next. */
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159
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160 #if defined _LIBC && defined USE_NONOPTION_FLAGS
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161 /* First make sure the handling of the `__getopt_nonoption_flags'
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162 string can work normally. Our top argument must be in the range
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163 of the string. */
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164 if (d->__nonoption_flags_len > 0 && top >= d->__nonoption_flags_max_len)
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165 {
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166 /* We must extend the array. The user plays games with us and
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167 presents new arguments. */
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168 char *new_str = malloc (top + 1);
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169 if (new_str == NULL)
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170 d->__nonoption_flags_len = d->__nonoption_flags_max_len = 0;
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171 else
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172 {
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173 memset (__mempcpy (new_str, __getopt_nonoption_flags,
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174 d->__nonoption_flags_max_len),
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175 '\0', top + 1 - d->__nonoption_flags_max_len);
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176 d->__nonoption_flags_max_len = top + 1;
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177 __getopt_nonoption_flags = new_str;
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178 }
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179 }
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180 #endif
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181
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182 while (top > middle && middle > bottom)
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183 {
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184 if (top - middle > middle - bottom)
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185 {
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186 /* Bottom segment is the short one. */
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187 int len = middle - bottom;
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188 register int i;
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189
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190 /* Swap it with the top part of the top segment. */
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191 for (i = 0; i < len; i++)
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192 {
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193 tem = argv[bottom + i];
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194 argv[bottom + i] = argv[top - (middle - bottom) + i];
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195 argv[top - (middle - bottom) + i] = tem;
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196 SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
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197 }
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198 /* Exclude the moved bottom segment from further swapping. */
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199 top -= len;
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200 }
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201 else
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202 {
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203 /* Top segment is the short one. */
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204 int len = top - middle;
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205 register int i;
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206
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207 /* Swap it with the bottom part of the bottom segment. */
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208 for (i = 0; i < len; i++)
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209 {
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210 tem = argv[bottom + i];
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211 argv[bottom + i] = argv[middle + i];
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212 argv[middle + i] = tem;
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213 SWAP_FLAGS (bottom + i, middle + i);
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214 }
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215 /* Exclude the moved top segment from further swapping. */
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216 bottom += len;
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217 }
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218 }
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219
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220 /* Update records for the slots the non-options now occupy. */
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221
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222 d->__first_nonopt += (d->optind - d->__last_nonopt);
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223 d->__last_nonopt = d->optind;
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224 }
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225
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226 /* Initialize the internal data when the first call is made. */
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227
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228 static const char *
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229 _getopt_initialize (int argc _GL_UNUSED,
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230 char **argv _GL_UNUSED, const char *optstring,
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231 struct _getopt_data *d, int posixly_correct)
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232 {
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233 /* Start processing options with ARGV-element 1 (since ARGV-element 0
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234 is the program name); the sequence of previously skipped
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235 non-option ARGV-elements is empty. */
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236
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237 d->__first_nonopt = d->__last_nonopt = d->optind;
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238
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239 d->__nextchar = NULL;
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240
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241 d->__posixly_correct = posixly_correct || !!getenv ("POSIXLY_CORRECT");
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242
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243 /* Determine how to handle the ordering of options and nonoptions. */
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244
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245 if (optstring[0] == '-')
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246 {
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247 d->__ordering = RETURN_IN_ORDER;
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248 ++optstring;
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249 }
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250 else if (optstring[0] == '+')
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251 {
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252 d->__ordering = REQUIRE_ORDER;
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253 ++optstring;
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254 }
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255 else if (d->__posixly_correct)
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256 d->__ordering = REQUIRE_ORDER;
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257 else
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258 d->__ordering = PERMUTE;
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259
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260 #if defined _LIBC && defined USE_NONOPTION_FLAGS
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261 if (!d->__posixly_correct
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262 && argc == __libc_argc && argv == __libc_argv)
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263 {
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264 if (d->__nonoption_flags_max_len == 0)
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265 {
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266 if (__getopt_nonoption_flags == NULL
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267 || __getopt_nonoption_flags[0] == '\0')
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268 d->__nonoption_flags_max_len = -1;
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269 else
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270 {
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271 const char *orig_str = __getopt_nonoption_flags;
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272 int len = d->__nonoption_flags_max_len = strlen (orig_str);
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273 if (d->__nonoption_flags_max_len < argc)
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274 d->__nonoption_flags_max_len = argc;
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275 __getopt_nonoption_flags =
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276 (char *) malloc (d->__nonoption_flags_max_len);
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277 if (__getopt_nonoption_flags == NULL)
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278 d->__nonoption_flags_max_len = -1;
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279 else
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280 memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
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281 '\0', d->__nonoption_flags_max_len - len);
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282 }
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283 }
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284 d->__nonoption_flags_len = d->__nonoption_flags_max_len;
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285 }
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286 else
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287 d->__nonoption_flags_len = 0;
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288 #endif
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289
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290 return optstring;
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291 }
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292
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293 /* Scan elements of ARGV (whose length is ARGC) for option characters
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294 given in OPTSTRING.
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295
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296 If an element of ARGV starts with '-', and is not exactly "-" or "--",
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297 then it is an option element. The characters of this element
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298 (aside from the initial '-') are option characters. If `getopt'
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299 is called repeatedly, it returns successively each of the option characters
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300 from each of the option elements.
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301
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302 If `getopt' finds another option character, it returns that character,
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303 updating `optind' and `nextchar' so that the next call to `getopt' can
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304 resume the scan with the following option character or ARGV-element.
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305
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306 If there are no more option characters, `getopt' returns -1.
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307 Then `optind' is the index in ARGV of the first ARGV-element
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308 that is not an option. (The ARGV-elements have been permuted
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309 so that those that are not options now come last.)
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310
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311 OPTSTRING is a string containing the legitimate option characters.
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312 If an option character is seen that is not listed in OPTSTRING,
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313 return '?' after printing an error message. If you set `opterr' to
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314 zero, the error message is suppressed but we still return '?'.
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315
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316 If a char in OPTSTRING is followed by a colon, that means it wants an arg,
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317 so the following text in the same ARGV-element, or the text of the following
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318 ARGV-element, is returned in `optarg'. Two colons mean an option that
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319 wants an optional arg; if there is text in the current ARGV-element,
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320 it is returned in `optarg', otherwise `optarg' is set to zero.
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321
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322 If OPTSTRING starts with `-' or `+', it requests different methods of
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323 handling the non-option ARGV-elements.
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324 See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
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325
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326 Long-named options begin with `--' instead of `-'.
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327 Their names may be abbreviated as long as the abbreviation is unique
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328 or is an exact match for some defined option. If they have an
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329 argument, it follows the option name in the same ARGV-element, separated
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330 from the option name by a `=', or else the in next ARGV-element.
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331 When `getopt' finds a long-named option, it returns 0 if that option's
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332 `flag' field is nonzero, the value of the option's `val' field
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333 if the `flag' field is zero.
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334
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335 The elements of ARGV aren't really const, because we permute them.
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336 But we pretend they're const in the prototype to be compatible
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337 with other systems.
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338
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339 LONGOPTS is a vector of `struct option' terminated by an
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340 element containing a name which is zero.
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341
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342 LONGIND returns the index in LONGOPT of the long-named option found.
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343 It is only valid when a long-named option has been found by the most
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344 recent call.
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345
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346 If LONG_ONLY is nonzero, '-' as well as '--' can introduce
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347 long-named options. */
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348
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349 int
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350 _getopt_internal_r (int argc, char **argv, const char *optstring,
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351 const struct option *longopts, int *longind,
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352 int long_only, struct _getopt_data *d, int posixly_correct)
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353 {
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354 int print_errors = d->opterr;
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355 if (optstring[0] == ':')
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356 print_errors = 0;
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357
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358 if (argc < 1)
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359 return -1;
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360
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361 d->optarg = NULL;
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362
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363 if (d->optind == 0 || !d->__initialized)
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364 {
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365 if (d->optind == 0)
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366 d->optind = 1; /* Don't scan ARGV[0], the program name. */
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367 optstring = _getopt_initialize (argc, argv, optstring, d,
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368 posixly_correct);
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369 d->__initialized = 1;
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370 }
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371
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372 /* Test whether ARGV[optind] points to a non-option argument.
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373 Either it does not have option syntax, or there is an environment flag
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374 from the shell indicating it is not an option. The later information
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375 is only used when the used in the GNU libc. */
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376 #if defined _LIBC && defined USE_NONOPTION_FLAGS
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377 # define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0' \
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378 || (d->optind < d->__nonoption_flags_len \
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379 && __getopt_nonoption_flags[d->optind] == '1'))
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380 #else
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381 # define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0')
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382 #endif
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383
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384 if (d->__nextchar == NULL || *d->__nextchar == '\0')
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385 {
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386 /* Advance to the next ARGV-element. */
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387
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388 /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
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389 moved back by the user (who may also have changed the arguments). */
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390 if (d->__last_nonopt > d->optind)
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391 d->__last_nonopt = d->optind;
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392 if (d->__first_nonopt > d->optind)
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393 d->__first_nonopt = d->optind;
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394
|
|
|
395 if (d->__ordering == PERMUTE)
|
|
|
396 {
|
|
|
397 /* If we have just processed some options following some non-options,
|
|
|
398 exchange them so that the options come first. */
|
|
|
399
|
|
|
400 if (d->__first_nonopt != d->__last_nonopt
|
|
|
401 && d->__last_nonopt != d->optind)
|
|
|
402 exchange ((char **) argv, d);
|
|
|
403 else if (d->__last_nonopt != d->optind)
|
|
|
404 d->__first_nonopt = d->optind;
|
|
|
405
|
|
|
406 /* Skip any additional non-options
|
|
|
407 and extend the range of non-options previously skipped. */
|
|
|
408
|
|
|
409 while (d->optind < argc && NONOPTION_P)
|
|
|
410 d->optind++;
|
|
|
411 d->__last_nonopt = d->optind;
|
|
|
412 }
|
|
|
413
|
|
|
414 /* The special ARGV-element `--' means premature end of options.
|
|
|
415 Skip it like a null option,
|
|
|
416 then exchange with previous non-options as if it were an option,
|
|
|
417 then skip everything else like a non-option. */
|
|
|
418
|
|
|
419 if (d->optind != argc && !strcmp (argv[d->optind], "--"))
|
|
|
420 {
|
|
|
421 d->optind++;
|
|
|
422
|
|
|
423 if (d->__first_nonopt != d->__last_nonopt
|
|
|
424 && d->__last_nonopt != d->optind)
|
|
|
425 exchange ((char **) argv, d);
|
|
|
426 else if (d->__first_nonopt == d->__last_nonopt)
|
|
|
427 d->__first_nonopt = d->optind;
|
|
|
428 d->__last_nonopt = argc;
|
|
|
429
|
|
|
430 d->optind = argc;
|
|
|
431 }
|
|
|
432
|
|
|
433 /* If we have done all the ARGV-elements, stop the scan
|
|
|
434 and back over any non-options that we skipped and permuted. */
|
|
|
435
|
|
|
436 if (d->optind == argc)
|
|
|
437 {
|
|
|
438 /* Set the next-arg-index to point at the non-options
|
|
|
439 that we previously skipped, so the caller will digest them. */
|
|
|
440 if (d->__first_nonopt != d->__last_nonopt)
|
|
|
441 d->optind = d->__first_nonopt;
|
|
|
442 return -1;
|
|
|
443 }
|
|
|
444
|
|
|
445 /* If we have come to a non-option and did not permute it,
|
|
|
446 either stop the scan or describe it to the caller and pass it by. */
|
|
|
447
|
|
|
448 if (NONOPTION_P)
|
|
|
449 {
|
|
|
450 if (d->__ordering == REQUIRE_ORDER)
|
|
|
451 return -1;
|
|
|
452 d->optarg = argv[d->optind++];
|
|
|
453 return 1;
|
|
|
454 }
|
|
|
455
|
|
|
456 /* We have found another option-ARGV-element.
|
|
|
457 Skip the initial punctuation. */
|
|
|
458
|
|
|
459 d->__nextchar = (argv[d->optind] + 1
|
|
|
460 + (longopts != NULL && argv[d->optind][1] == '-'));
|
|
|
461 }
|
|
|
462
|
|
|
463 /* Decode the current option-ARGV-element. */
|
|
|
464
|
|
|
465 /* Check whether the ARGV-element is a long option.
|
|
|
466
|
|
|
467 If long_only and the ARGV-element has the form "-f", where f is
|
|
|
468 a valid short option, don't consider it an abbreviated form of
|
|
|
469 a long option that starts with f. Otherwise there would be no
|
|
|
470 way to give the -f short option.
|
|
|
471
|
|
|
472 On the other hand, if there's a long option "fubar" and
|
|
|
473 the ARGV-element is "-fu", do consider that an abbreviation of
|
|
|
474 the long option, just like "--fu", and not "-f" with arg "u".
|
|
|
475
|
|
|
476 This distinction seems to be the most useful approach. */
|
|
|
477
|
|
|
478 if (longopts != NULL
|
|
|
479 && (argv[d->optind][1] == '-'
|
|
|
480 || (long_only && (argv[d->optind][2]
|
|
|
481 || !strchr (optstring, argv[d->optind][1])))))
|
|
|
482 {
|
|
|
483 char *nameend;
|
|
|
484 const struct option *p;
|
|
|
485 const struct option *pfound = NULL;
|
|
|
486 int exact = 0;
|
|
|
487 int ambig = 0;
|
|
|
488 int indfound = -1;
|
|
|
489 int option_index;
|
|
|
490
|
|
|
491 for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++)
|
|
|
492 /* Do nothing. */ ;
|
|
|
493
|
|
|
494 /* Test all long options for either exact match
|
|
|
495 or abbreviated matches. */
|
|
|
496 for (p = longopts, option_index = 0; p->name; p++, option_index++)
|
|
|
497 if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
|
|
|
498 {
|
|
|
499 if ((unsigned int) (nameend - d->__nextchar)
|
|
|
500 == (unsigned int) strlen (p->name))
|
|
|
501 {
|
|
|
502 /* Exact match found. */
|
|
|
503 pfound = p;
|
|
|
504 indfound = option_index;
|
|
|
505 exact = 1;
|
|
|
506 break;
|
|
|
507 }
|
|
|
508 else if (pfound == NULL)
|
|
|
509 {
|
|
|
510 /* First nonexact match found. */
|
|
|
511 pfound = p;
|
|
|
512 indfound = option_index;
|
|
|
513 }
|
|
|
514 else if (long_only
|
|
|
515 || pfound->has_arg != p->has_arg
|
|
|
516 || pfound->flag != p->flag
|
|
|
517 || pfound->val != p->val)
|
|
|
518 /* Second or later nonexact match found. */
|
|
|
519 ambig = 1;
|
|
|
520 }
|
|
|
521
|
|
|
522 if (ambig && !exact)
|
|
|
523 {
|
|
|
524 if (print_errors)
|
|
|
525 {
|
|
|
526 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
527 char *buf;
|
|
|
528
|
|
|
529 if (__asprintf (&buf, _("%s: option '%s' is ambiguous\n"),
|
|
|
530 argv[0], argv[d->optind]) >= 0)
|
|
|
531 {
|
|
|
532 _IO_flockfile (stderr);
|
|
|
533
|
|
|
534 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
535 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
536
|
|
|
537 __fxprintf (NULL, "%s", buf);
|
|
|
538
|
|
|
539 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
540 _IO_funlockfile (stderr);
|
|
|
541
|
|
|
542 free (buf);
|
|
|
543 }
|
|
|
544 #else
|
|
|
545 fprintf (stderr, _("%s: option '%s' is ambiguous\n"),
|
|
|
546 argv[0], argv[d->optind]);
|
|
|
547 #endif
|
|
|
548 }
|
|
|
549 d->__nextchar += strlen (d->__nextchar);
|
|
|
550 d->optind++;
|
|
|
551 d->optopt = 0;
|
|
|
552 return '?';
|
|
|
553 }
|
|
|
554
|
|
|
555 if (pfound != NULL)
|
|
|
556 {
|
|
|
557 option_index = indfound;
|
|
|
558 d->optind++;
|
|
|
559 if (*nameend)
|
|
|
560 {
|
|
|
561 /* Don't test has_arg with >, because some C compilers don't
|
|
|
562 allow it to be used on enums. */
|
|
|
563 if (pfound->has_arg)
|
|
|
564 d->optarg = nameend + 1;
|
|
|
565 else
|
|
|
566 {
|
|
|
567 if (print_errors)
|
|
|
568 {
|
|
|
569 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
570 char *buf;
|
|
|
571 int n;
|
|
|
572 #endif
|
|
|
573
|
|
|
574 if (argv[d->optind - 1][1] == '-')
|
|
|
575 {
|
|
|
576 /* --option */
|
|
|
577 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
578 n = __asprintf (&buf, _("\
|
|
|
579 %s: option '--%s' doesn't allow an argument\n"),
|
|
|
580 argv[0], pfound->name);
|
|
|
581 #else
|
|
|
582 fprintf (stderr, _("\
|
|
|
583 %s: option '--%s' doesn't allow an argument\n"),
|
|
|
584 argv[0], pfound->name);
|
|
|
585 #endif
|
|
|
586 }
|
|
|
587 else
|
|
|
588 {
|
|
|
589 /* +option or -option */
|
|
|
590 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
591 n = __asprintf (&buf, _("\
|
|
|
592 %s: option '%c%s' doesn't allow an argument\n"),
|
|
|
593 argv[0], argv[d->optind - 1][0],
|
|
|
594 pfound->name);
|
|
|
595 #else
|
|
|
596 fprintf (stderr, _("\
|
|
|
597 %s: option '%c%s' doesn't allow an argument\n"),
|
|
|
598 argv[0], argv[d->optind - 1][0],
|
|
|
599 pfound->name);
|
|
|
600 #endif
|
|
|
601 }
|
|
|
602
|
|
|
603 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
604 if (n >= 0)
|
|
|
605 {
|
|
|
606 _IO_flockfile (stderr);
|
|
|
607
|
|
|
608 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
609 ((_IO_FILE *) stderr)->_flags2
|
|
|
610 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
611
|
|
|
612 __fxprintf (NULL, "%s", buf);
|
|
|
613
|
|
|
614 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
615 _IO_funlockfile (stderr);
|
|
|
616
|
|
|
617 free (buf);
|
|
|
618 }
|
|
|
619 #endif
|
|
|
620 }
|
|
|
621
|
|
|
622 d->__nextchar += strlen (d->__nextchar);
|
|
|
623
|
|
|
624 d->optopt = pfound->val;
|
|
|
625 return '?';
|
|
|
626 }
|
|
|
627 }
|
|
|
628 else if (pfound->has_arg == 1)
|
|
|
629 {
|
|
|
630 if (d->optind < argc)
|
|
|
631 d->optarg = argv[d->optind++];
|
|
|
632 else
|
|
|
633 {
|
|
|
634 if (print_errors)
|
|
|
635 {
|
|
|
636 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
637 char *buf;
|
|
|
638
|
|
|
639 if (__asprintf (&buf, _("\
|
|
|
640 %s: option '%s' requires an argument\n"),
|
|
|
641 argv[0], argv[d->optind - 1]) >= 0)
|
|
|
642 {
|
|
|
643 _IO_flockfile (stderr);
|
|
|
644
|
|
|
645 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
646 ((_IO_FILE *) stderr)->_flags2
|
|
|
647 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
648
|
|
|
649 __fxprintf (NULL, "%s", buf);
|
|
|
650
|
|
|
651 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
652 _IO_funlockfile (stderr);
|
|
|
653
|
|
|
654 free (buf);
|
|
|
655 }
|
|
|
656 #else
|
|
|
657 fprintf (stderr,
|
|
|
658 _("%s: option '%s' requires an argument\n"),
|
|
|
659 argv[0], argv[d->optind - 1]);
|
|
|
660 #endif
|
|
|
661 }
|
|
|
662 d->__nextchar += strlen (d->__nextchar);
|
|
|
663 d->optopt = pfound->val;
|
|
|
664 return optstring[0] == ':' ? ':' : '?';
|
|
|
665 }
|
|
|
666 }
|
|
|
667 d->__nextchar += strlen (d->__nextchar);
|
|
|
668 if (longind != NULL)
|
|
|
669 *longind = option_index;
|
|
|
670 if (pfound->flag)
|
|
|
671 {
|
|
|
672 *(pfound->flag) = pfound->val;
|
|
|
673 return 0;
|
|
|
674 }
|
|
|
675 return pfound->val;
|
|
|
676 }
|
|
|
677
|
|
|
678 /* Can't find it as a long option. If this is not getopt_long_only,
|
|
|
679 or the option starts with '--' or is not a valid short
|
|
|
680 option, then it's an error.
|
|
|
681 Otherwise interpret it as a short option. */
|
|
|
682 if (!long_only || argv[d->optind][1] == '-'
|
|
|
683 || strchr (optstring, *d->__nextchar) == NULL)
|
|
|
684 {
|
|
|
685 if (print_errors)
|
|
|
686 {
|
|
|
687 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
688 char *buf;
|
|
|
689 int n;
|
|
|
690 #endif
|
|
|
691
|
|
|
692 if (argv[d->optind][1] == '-')
|
|
|
693 {
|
|
|
694 /* --option */
|
|
|
695 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
696 n = __asprintf (&buf, _("%s: unrecognized option '--%s'\n"),
|
|
|
697 argv[0], d->__nextchar);
|
|
|
698 #else
|
|
|
699 fprintf (stderr, _("%s: unrecognized option '--%s'\n"),
|
|
|
700 argv[0], d->__nextchar);
|
|
|
701 #endif
|
|
|
702 }
|
|
|
703 else
|
|
|
704 {
|
|
|
705 /* +option or -option */
|
|
|
706 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
707 n = __asprintf (&buf, _("%s: unrecognized option '%c%s'\n"),
|
|
|
708 argv[0], argv[d->optind][0], d->__nextchar);
|
|
|
709 #else
|
|
|
710 fprintf (stderr, _("%s: unrecognized option '%c%s'\n"),
|
|
|
711 argv[0], argv[d->optind][0], d->__nextchar);
|
|
|
712 #endif
|
|
|
713 }
|
|
|
714
|
|
|
715 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
716 if (n >= 0)
|
|
|
717 {
|
|
|
718 _IO_flockfile (stderr);
|
|
|
719
|
|
|
720 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
721 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
722
|
|
|
723 __fxprintf (NULL, "%s", buf);
|
|
|
724
|
|
|
725 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
726 _IO_funlockfile (stderr);
|
|
|
727
|
|
|
728 free (buf);
|
|
|
729 }
|
|
|
730 #endif
|
|
|
731 }
|
|
|
732 d->__nextchar = (char *) "";
|
|
|
733 d->optind++;
|
|
|
734 d->optopt = 0;
|
|
|
735 return '?';
|
|
|
736 }
|
|
|
737 }
|
|
|
738
|
|
|
739 /* Look at and handle the next short option-character. */
|
|
|
740
|
|
|
741 {
|
|
|
742 char c = *d->__nextchar++;
|
|
|
743 char *temp = strchr (optstring, c);
|
|
|
744
|
|
|
745 /* Increment `optind' when we start to process its last character. */
|
|
|
746 if (*d->__nextchar == '\0')
|
|
|
747 ++d->optind;
|
|
|
748
|
|
|
749 if (temp == NULL || c == ':')
|
|
|
750 {
|
|
|
751 if (print_errors)
|
|
|
752 {
|
|
|
753 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
754 char *buf;
|
|
|
755 int n;
|
|
|
756 #endif
|
|
|
757
|
|
|
758 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
759 n = __asprintf (&buf, _("%s: invalid option -- '%c'\n"),
|
|
|
760 argv[0], c);
|
|
|
761 #else
|
|
|
762 fprintf (stderr, _("%s: invalid option -- '%c'\n"), argv[0], c);
|
|
|
763 #endif
|
|
|
764
|
|
|
765 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
766 if (n >= 0)
|
|
|
767 {
|
|
|
768 _IO_flockfile (stderr);
|
|
|
769
|
|
|
770 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
771 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
772
|
|
|
773 __fxprintf (NULL, "%s", buf);
|
|
|
774
|
|
|
775 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
776 _IO_funlockfile (stderr);
|
|
|
777
|
|
|
778 free (buf);
|
|
|
779 }
|
|
|
780 #endif
|
|
|
781 }
|
|
|
782 d->optopt = c;
|
|
|
783 return '?';
|
|
|
784 }
|
|
|
785 /* Convenience. Treat POSIX -W foo same as long option --foo */
|
|
|
786 if (temp[0] == 'W' && temp[1] == ';')
|
|
|
787 {
|
|
|
788 char *nameend;
|
|
|
789 const struct option *p;
|
|
|
790 const struct option *pfound = NULL;
|
|
|
791 int exact = 0;
|
|
|
792 int ambig = 0;
|
|
|
793 int indfound = 0;
|
|
|
794 int option_index;
|
|
|
795
|
|
|
796 /* This is an option that requires an argument. */
|
|
|
797 if (*d->__nextchar != '\0')
|
|
|
798 {
|
|
|
799 d->optarg = d->__nextchar;
|
|
|
800 /* If we end this ARGV-element by taking the rest as an arg,
|
|
|
801 we must advance to the next element now. */
|
|
|
802 d->optind++;
|
|
|
803 }
|
|
|
804 else if (d->optind == argc)
|
|
|
805 {
|
|
|
806 if (print_errors)
|
|
|
807 {
|
|
|
808 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
809 char *buf;
|
|
|
810
|
|
|
811 if (__asprintf (&buf,
|
|
|
812 _("%s: option requires an argument -- '%c'\n"),
|
|
|
813 argv[0], c) >= 0)
|
|
|
814 {
|
|
|
815 _IO_flockfile (stderr);
|
|
|
816
|
|
|
817 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
818 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
819
|
|
|
820 __fxprintf (NULL, "%s", buf);
|
|
|
821
|
|
|
822 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
823 _IO_funlockfile (stderr);
|
|
|
824
|
|
|
825 free (buf);
|
|
|
826 }
|
|
|
827 #else
|
|
|
828 fprintf (stderr,
|
|
|
829 _("%s: option requires an argument -- '%c'\n"),
|
|
|
830 argv[0], c);
|
|
|
831 #endif
|
|
|
832 }
|
|
|
833 d->optopt = c;
|
|
|
834 if (optstring[0] == ':')
|
|
|
835 c = ':';
|
|
|
836 else
|
|
|
837 c = '?';
|
|
|
838 return c;
|
|
|
839 }
|
|
|
840 else
|
|
|
841 /* We already incremented `d->optind' once;
|
|
|
842 increment it again when taking next ARGV-elt as argument. */
|
|
|
843 d->optarg = argv[d->optind++];
|
|
|
844
|
|
|
845 /* optarg is now the argument, see if it's in the
|
|
|
846 table of longopts. */
|
|
|
847
|
|
|
848 for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '=';
|
|
|
849 nameend++)
|
|
|
850 /* Do nothing. */ ;
|
|
|
851
|
|
|
852 /* Test all long options for either exact match
|
|
|
853 or abbreviated matches. */
|
|
|
854 for (p = longopts, option_index = 0; p->name; p++, option_index++)
|
|
|
855 if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
|
|
|
856 {
|
|
|
857 if ((unsigned int) (nameend - d->__nextchar) == strlen (p->name))
|
|
|
858 {
|
|
|
859 /* Exact match found. */
|
|
|
860 pfound = p;
|
|
|
861 indfound = option_index;
|
|
|
862 exact = 1;
|
|
|
863 break;
|
|
|
864 }
|
|
|
865 else if (pfound == NULL)
|
|
|
866 {
|
|
|
867 /* First nonexact match found. */
|
|
|
868 pfound = p;
|
|
|
869 indfound = option_index;
|
|
|
870 }
|
|
|
871 else
|
|
|
872 /* Second or later nonexact match found. */
|
|
|
873 ambig = 1;
|
|
|
874 }
|
|
|
875 if (ambig && !exact)
|
|
|
876 {
|
|
|
877 if (print_errors)
|
|
|
878 {
|
|
|
879 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
880 char *buf;
|
|
|
881
|
|
|
882 if (__asprintf (&buf, _("%s: option '-W %s' is ambiguous\n"),
|
|
|
883 argv[0], argv[d->optind]) >= 0)
|
|
|
884 {
|
|
|
885 _IO_flockfile (stderr);
|
|
|
886
|
|
|
887 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
888 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
889
|
|
|
890 __fxprintf (NULL, "%s", buf);
|
|
|
891
|
|
|
892 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
893 _IO_funlockfile (stderr);
|
|
|
894
|
|
|
895 free (buf);
|
|
|
896 }
|
|
|
897 #else
|
|
|
898 fprintf (stderr, _("%s: option '-W %s' is ambiguous\n"),
|
|
|
899 argv[0], argv[d->optind]);
|
|
|
900 #endif
|
|
|
901 }
|
|
|
902 d->__nextchar += strlen (d->__nextchar);
|
|
|
903 d->optind++;
|
|
|
904 return '?';
|
|
|
905 }
|
|
|
906 if (pfound != NULL)
|
|
|
907 {
|
|
|
908 option_index = indfound;
|
|
|
909 if (*nameend)
|
|
|
910 {
|
|
|
911 /* Don't test has_arg with >, because some C compilers don't
|
|
|
912 allow it to be used on enums. */
|
|
|
913 if (pfound->has_arg)
|
|
|
914 d->optarg = nameend + 1;
|
|
|
915 else
|
|
|
916 {
|
|
|
917 if (print_errors)
|
|
|
918 {
|
|
|
919 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
920 char *buf;
|
|
|
921
|
|
|
922 if (__asprintf (&buf, _("\
|
|
|
923 %s: option '-W %s' doesn't allow an argument\n"),
|
|
|
924 argv[0], pfound->name) >= 0)
|
|
|
925 {
|
|
|
926 _IO_flockfile (stderr);
|
|
|
927
|
|
|
928 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
929 ((_IO_FILE *) stderr)->_flags2
|
|
|
930 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
931
|
|
|
932 __fxprintf (NULL, "%s", buf);
|
|
|
933
|
|
|
934 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
935 _IO_funlockfile (stderr);
|
|
|
936
|
|
|
937 free (buf);
|
|
|
938 }
|
|
|
939 #else
|
|
|
940 fprintf (stderr, _("\
|
|
|
941 %s: option '-W %s' doesn't allow an argument\n"),
|
|
|
942 argv[0], pfound->name);
|
|
|
943 #endif
|
|
|
944 }
|
|
|
945
|
|
|
946 d->__nextchar += strlen (d->__nextchar);
|
|
|
947 return '?';
|
|
|
948 }
|
|
|
949 }
|
|
|
950 else if (pfound->has_arg == 1)
|
|
|
951 {
|
|
|
952 if (d->optind < argc)
|
|
|
953 d->optarg = argv[d->optind++];
|
|
|
954 else
|
|
|
955 {
|
|
|
956 if (print_errors)
|
|
|
957 {
|
|
|
958 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
959 char *buf;
|
|
|
960
|
|
|
961 if (__asprintf (&buf, _("\
|
|
|
962 %s: option '%s' requires an argument\n"),
|
|
|
963 argv[0], argv[d->optind - 1]) >= 0)
|
|
|
964 {
|
|
|
965 _IO_flockfile (stderr);
|
|
|
966
|
|
|
967 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
968 ((_IO_FILE *) stderr)->_flags2
|
|
|
969 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
970
|
|
|
971 __fxprintf (NULL, "%s", buf);
|
|
|
972
|
|
|
973 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
974 _IO_funlockfile (stderr);
|
|
|
975
|
|
|
976 free (buf);
|
|
|
977 }
|
|
|
978 #else
|
|
|
979 fprintf (stderr,
|
|
|
980 _("%s: option '%s' requires an argument\n"),
|
|
|
981 argv[0], argv[d->optind - 1]);
|
|
|
982 #endif
|
|
|
983 }
|
|
|
984 d->__nextchar += strlen (d->__nextchar);
|
|
|
985 return optstring[0] == ':' ? ':' : '?';
|
|
|
986 }
|
|
|
987 }
|
|
|
988 d->__nextchar += strlen (d->__nextchar);
|
|
|
989 if (longind != NULL)
|
|
|
990 *longind = option_index;
|
|
|
991 if (pfound->flag)
|
|
|
992 {
|
|
|
993 *(pfound->flag) = pfound->val;
|
|
|
994 return 0;
|
|
|
995 }
|
|
|
996 return pfound->val;
|
|
|
997 }
|
|
|
998 d->__nextchar = NULL;
|
|
|
999 return 'W'; /* Let the application handle it. */
|
|
|
1000 }
|
|
|
1001 if (temp[1] == ':')
|
|
|
1002 {
|
|
|
1003 if (temp[2] == ':')
|
|
|
1004 {
|
|
|
1005 /* This is an option that accepts an argument optionally. */
|
|
|
1006 if (*d->__nextchar != '\0')
|
|
|
1007 {
|
|
|
1008 d->optarg = d->__nextchar;
|
|
|
1009 d->optind++;
|
|
|
1010 }
|
|
|
1011 else
|
|
|
1012 d->optarg = NULL;
|
|
|
1013 d->__nextchar = NULL;
|
|
|
1014 }
|
|
|
1015 else
|
|
|
1016 {
|
|
|
1017 /* This is an option that requires an argument. */
|
|
|
1018 if (*d->__nextchar != '\0')
|
|
|
1019 {
|
|
|
1020 d->optarg = d->__nextchar;
|
|
|
1021 /* If we end this ARGV-element by taking the rest as an arg,
|
|
|
1022 we must advance to the next element now. */
|
|
|
1023 d->optind++;
|
|
|
1024 }
|
|
|
1025 else if (d->optind == argc)
|
|
|
1026 {
|
|
|
1027 if (print_errors)
|
|
|
1028 {
|
|
|
1029 #if defined _LIBC && defined USE_IN_LIBIO
|
|
|
1030 char *buf;
|
|
|
1031
|
|
|
1032 if (__asprintf (&buf, _("\
|
|
|
1033 %s: option requires an argument -- '%c'\n"),
|
|
|
1034 argv[0], c) >= 0)
|
|
|
1035 {
|
|
|
1036 _IO_flockfile (stderr);
|
|
|
1037
|
|
|
1038 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
|
|
1039 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
1040
|
|
|
1041 __fxprintf (NULL, "%s", buf);
|
|
|
1042
|
|
|
1043 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
|
|
1044 _IO_funlockfile (stderr);
|
|
|
1045
|
|
|
1046 free (buf);
|
|
|
1047 }
|
|
|
1048 #else
|
|
|
1049 fprintf (stderr,
|
|
|
1050 _("%s: option requires an argument -- '%c'\n"),
|
|
|
1051 argv[0], c);
|
|
|
1052 #endif
|
|
|
1053 }
|
|
|
1054 d->optopt = c;
|
|
|
1055 if (optstring[0] == ':')
|
|
|
1056 c = ':';
|
|
|
1057 else
|
|
|
1058 c = '?';
|
|
|
1059 }
|
|
|
1060 else
|
|
|
1061 /* We already incremented `optind' once;
|
|
|
1062 increment it again when taking next ARGV-elt as argument. */
|
|
|
1063 d->optarg = argv[d->optind++];
|
|
|
1064 d->__nextchar = NULL;
|
|
|
1065 }
|
|
|
1066 }
|
|
|
1067 return c;
|
|
|
1068 }
|
|
|
1069 }
|
|
|
1070
|
|
|
1071 int
|
|
|
1072 _getopt_internal (int argc, char **argv, const char *optstring,
|
|
|
1073 const struct option *longopts, int *longind, int long_only,
|
|
|
1074 int posixly_correct)
|
|
|
1075 {
|
|
|
1076 int result;
|
|
|
1077
|
|
|
1078 getopt_data.optind = optind;
|
|
|
1079 getopt_data.opterr = opterr;
|
|
|
1080
|
|
|
1081 result = _getopt_internal_r (argc, argv, optstring, longopts,
|
|
|
1082 longind, long_only, &getopt_data,
|
|
|
1083 posixly_correct);
|
|
|
1084
|
|
|
1085 optind = getopt_data.optind;
|
|
|
1086 optarg = getopt_data.optarg;
|
|
|
1087 optopt = getopt_data.optopt;
|
|
|
1088
|
|
|
1089 return result;
|
|
|
1090 }
|
|
|
1091
|
|
|
1092 /* glibc gets a LSB-compliant getopt.
|
|
|
1093 Standalone applications get a POSIX-compliant getopt. */
|
|
|
1094 #if _LIBC
|
|
|
1095 enum { POSIXLY_CORRECT = 0 };
|
|
|
1096 #else
|
|
|
1097 enum { POSIXLY_CORRECT = 1 };
|
|
|
1098 #endif
|
|
|
1099
|
|
|
1100 int
|
|
|
1101 getopt (int argc, char *const *argv, const char *optstring)
|
|
|
1102 {
|
|
|
1103 return _getopt_internal (argc, (char **) argv, optstring,
|
|
|
1104 (const struct option *) 0,
|
|
|
1105 (int *) 0,
|
|
|
1106 0, POSIXLY_CORRECT);
|
|
|
1107 }
|
|
|
1108
|
|
|
1109 #ifdef _LIBC
|
|
|
1110 int
|
|
|
1111 __posix_getopt (int argc, char *const *argv, const char *optstring)
|
|
|
1112 {
|
|
|
1113 return _getopt_internal (argc, argv, optstring,
|
|
|
1114 (const struct option *) 0,
|
|
|
1115 (int *) 0,
|
|
|
1116 0, 1);
|
|
|
1117 }
|
|
|
1118 #endif
|
|
|
1119
|
|
|
1120
|
|
|
1121 #ifdef TEST
|
|
|
1122
|
|
|
1123 /* Compile with -DTEST to make an executable for use in testing
|
|
|
1124 the above definition of `getopt'. */
|
|
|
1125
|
|
|
1126 int
|
|
|
1127 main (int argc, char **argv)
|
|
|
1128 {
|
|
|
1129 int c;
|
|
|
1130 int digit_optind = 0;
|
|
|
1131
|
|
|
1132 while (1)
|
|
|
1133 {
|
|
|
1134 int this_option_optind = optind ? optind : 1;
|
|
|
1135
|
|
|
1136 c = getopt (argc, argv, "abc:d:0123456789");
|
|
|
1137 if (c == -1)
|
|
|
1138 break;
|
|
|
1139
|
|
|
1140 switch (c)
|
|
|
1141 {
|
|
|
1142 case '0':
|
|
|
1143 case '1':
|
|
|
1144 case '2':
|
|
|
1145 case '3':
|
|
|
1146 case '4':
|
|
|
1147 case '5':
|
|
|
1148 case '6':
|
|
|
1149 case '7':
|
|
|
1150 case '8':
|
|
|
1151 case '9':
|
|
|
1152 if (digit_optind != 0 && digit_optind != this_option_optind)
|
|
|
1153 printf ("digits occur in two different argv-elements.\n");
|
|
|
1154 digit_optind = this_option_optind;
|
|
|
1155 printf ("option %c\n", c);
|
|
|
1156 break;
|
|
|
1157
|
|
|
1158 case 'a':
|
|
|
1159 printf ("option a\n");
|
|
|
1160 break;
|
|
|
1161
|
|
|
1162 case 'b':
|
|
|
1163 printf ("option b\n");
|
|
|
1164 break;
|
|
|
1165
|
|
|
1166 case 'c':
|
|
|
1167 printf ("option c with value '%s'\n", optarg);
|
|
|
1168 break;
|
|
|
1169
|
|
|
1170 case '?':
|
|
|
1171 break;
|
|
|
1172
|
|
|
1173 default:
|
|
|
1174 printf ("?? getopt returned character code 0%o ??\n", c);
|
|
|
1175 }
|
|
|
1176 }
|
|
|
1177
|
|
|
1178 if (optind < argc)
|
|
|
1179 {
|
|
|
1180 printf ("non-option ARGV-elements: ");
|
|
|
1181 while (optind < argc)
|
|
|
1182 printf ("%s ", argv[optind++]);
|
|
|
1183 printf ("\n");
|
|
|
1184 }
|
|
|
1185
|
|
|
1186 exit (0);
|
|
|
1187 }
|
|
|
1188
|
|
|
1189 #endif /* TEST */
|
