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<div class="title">getopt.c</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* Getopt for GNU.</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> NOTE: getopt is now part of the C library, so if you don't know what</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> "Keep this file name-space clean" means, talk to drepper@gnu.org</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> before changing it!</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> Copyright (C) 1987,88,89,90,91,92,93,94,95,96,98,99,2000,2001</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> Free Software Foundation, Inc.</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> This file is part of the GNU C Library.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"></span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> The GNU C Library is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> modify it under the terms of the GNU Lesser General Public</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> License as published by the Free Software Foundation; either</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> version 2.1 of the License, or (at your option) any later version.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"></span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> The GNU C Library is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> Lesser General Public License for more details.</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"></span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> You should have received a copy of the GNU Lesser General Public</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> License along with the GNU C Library; if not, write to the Free</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> 02111-1307 USA. */</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  </div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> Ditto for AIX 3.2 and <stdlib.h>. */</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#ifndef _NO_PROTO</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor"></span><span class="preprocessor"># define _NO_PROTO</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#ifdef HAVE_CONFIG_H</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor"></span><span class="preprocessor"># include <config.h></span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#if !defined __STDC__ || !__STDC__</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor"></span><span class="comment">/* This is a separate conditional since some stdc systems</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> reject `defined (const)'. */</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor"># ifndef const</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor"></span><span class="preprocessor"># define const</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor"></span><span class="preprocessor"># endif</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#include <stdio.h></span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment">/* Comment out all this code if we are using the GNU C Library, and are not</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> actually compiling the library itself. This code is part of the GNU C</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> Library, but also included in many other GNU distributions. Compiling</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> and linking in this code is a waste when using the GNU C library</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> (especially if it is a shared library). Rather than having every GNU</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> program understand `configure --with-gnu-libc' and omit the object files,</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"> it is simpler to just do this in the source for each such file. */</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#define GETOPT_INTERFACE_VERSION 2</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor"></span><span class="preprocessor">#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor"></span><span class="preprocessor"># include <gnu-versions.h></span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor"># if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor"></span><span class="preprocessor"># define ELIDE_CODE</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor"></span><span class="preprocessor"># endif</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#ifndef ELIDE_CODE</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment">/* This needs to come after some library #include</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"> to get __GNU_LIBRARY__ defined. */</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#ifdef __GNU_LIBRARY__</span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor"></span><span class="comment">/* Don't include stdlib.h for non-GNU C libraries because some of them</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment"> contain conflicting prototypes for getopt. */</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor"># include <stdlib.h></span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor"># include <unistd.h></span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor">#endif </span><span class="comment">/* GNU C library. */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor">#ifdef VMS</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor"></span><span class="preprocessor"># include <unixlib.h></span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor"># if HAVE_STRING_H - 0</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor"></span><span class="preprocessor"># include <string.h></span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor"># endif</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="preprocessor">#ifndef _</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor"></span><span class="comment">/* This is for other GNU distributions with internationalized messages. */</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor"># if defined HAVE_LIBINTL_H || defined _LIBC</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor"></span><span class="preprocessor"># include <libintl.h></span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor"># ifndef _</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor"></span><span class="preprocessor"># define _(msgid) gettext (msgid)</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor"></span><span class="preprocessor"># endif</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor"></span><span class="preprocessor"># else</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="preprocessor"></span><span class="preprocessor"># define _(msgid) (msgid)</span></div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="preprocessor"></span><span class="preprocessor"># endif</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment">/* This version of `getopt' appears to the caller like standard Unix `getopt'</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment"> but it behaves differently for the user, since it allows the user</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment"> to intersperse the options with the other arguments.</span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment"></span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment"> As `getopt' works, it permutes the elements of ARGV so that,</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment"> when it is done, all the options precede everything else. Thus</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment"> all application programs are extended to handle flexible argument order.</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"></span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment"> Setting the environment variable POSIXLY_CORRECT disables permutation.</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment"> Then the behavior is completely standard.</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment"></span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="comment"> GNU application programs can use a third alternative mode in which</span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment"> they can distinguish the relative order of options and other arguments. */</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="preprocessor">#include "getopt.h"</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment">/* For communication from `getopt' to the caller.</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="comment"> When `getopt' finds an option that takes an argument,</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="comment"> the argument value is returned here.</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="comment"> Also, when `ordering' is RETURN_IN_ORDER,</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment"> each non-option ARGV-element is returned here. */</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="keywordtype">char</span> *optarg;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment">/* Index in ARGV of the next element to be scanned.</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment"> This is used for communication to and from the caller</span></div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment"> and for communication between successive calls to `getopt'.</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment"></span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="comment"> On entry to `getopt', zero means this is the first call; initialize.</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="comment"></span></div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="comment"> When `getopt' returns -1, this is the index of the first of the</span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="comment"> non-option elements that the caller should itself scan.</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment"></span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment"> Otherwise, `optind' communicates from one call to the next</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment"> how much of ARGV has been scanned so far. */</span></div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment">/* 1003.2 says this must be 1 before any call. */</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="keywordtype">int</span> optind = 1;</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="comment">/* Formerly, initialization of getopt depended on optind==0, which</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="comment"> causes problems with re-calling getopt as programs generally don't</span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="comment"> know that. */</span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="keywordtype">int</span> __getopt_initialized;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="comment">/* The next char to be scanned in the option-element</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment"> in which the last option character we returned was found.</span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="comment"> This allows us to pick up the scan where we left off.</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment"></span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment"> If this is zero, or a null string, it means resume the scan</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment"> by advancing to the next ARGV-element. */</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="keyword">static</span> <span class="keywordtype">char</span> *nextchar;</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="comment">/* Callers store zero here to inhibit the error message</span></div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="comment"> for unrecognized options. */</span></div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="keywordtype">int</span> opterr = 1;</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="comment">/* Set to an option character which was unrecognized.</span></div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="comment"> This must be initialized on some systems to avoid linking in the</span></div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="comment"> system's own getopt implementation. */</span></div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="keywordtype">int</span> optopt = <span class="charliteral">'?'</span>;</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="comment">/* Describe how to deal with options that follow non-option ARGV-elements.</span></div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="comment"></span></div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="comment"> If the caller did not specify anything,</span></div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="comment"> the default is REQUIRE_ORDER if the environment variable</span></div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="comment"> POSIXLY_CORRECT is defined, PERMUTE otherwise.</span></div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="comment"></span></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment"> REQUIRE_ORDER means don't recognize them as options;</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="comment"> stop option processing when the first non-option is seen.</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="comment"> This is what Unix does.</span></div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="comment"> This mode of operation is selected by either setting the environment</span></div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="comment"> variable POSIXLY_CORRECT, or using `+' as the first character</span></div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="comment"> of the list of option characters.</span></div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="comment"></span></div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="comment"> PERMUTE is the default. We permute the contents of ARGV as we scan,</span></div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="comment"> so that eventually all the non-options are at the end. This allows options</span></div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="comment"> to be given in any order, even with programs that were not written to</span></div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="comment"> expect this.</span></div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="comment"></span></div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="comment"> RETURN_IN_ORDER is an option available to programs that were written</span></div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment"> to expect options and other ARGV-elements in any order and that care about</span></div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment"> the ordering of the two. We describe each non-option ARGV-element</span></div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment"> as if it were the argument of an option with character code 1.</span></div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment"> Using `-' as the first character of the list of option characters</span></div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="comment"> selects this mode of operation.</span></div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="comment"></span></div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="comment"> The special argument `--' forces an end of option-scanning regardless</span></div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="comment"> of the value of `ordering'. In the case of RETURN_IN_ORDER, only</span></div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="comment"> `--' can cause `getopt' to return -1 with `optind' != ARGC. */</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="keyword">static</span> <span class="keyword">enum</span></div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> {</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> } ordering;</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="comment">/* Value of POSIXLY_CORRECT environment variable. */</span></div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="keyword">static</span> <span class="keywordtype">char</span> *posixly_correct;</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  </div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="preprocessor">#ifdef __GNU_LIBRARY__</span></div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="preprocessor"></span><span class="comment">/* We want to avoid inclusion of string.h with non-GNU libraries</span></div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="comment"> because there are many ways it can cause trouble.</span></div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="comment"> On some systems, it contains special magic macros that don't work</span></div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment"> in GCC. */</span></div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="preprocessor"># include <string.h></span></div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="preprocessor"># define my_index strchr</span></div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="preprocessor"># if HAVE_STRING_H</span></div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="preprocessor"></span><span class="preprocessor"># include <string.h></span></div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="preprocessor"># else</span></div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="preprocessor"></span><span class="preprocessor"># include <strings.h></span></div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="preprocessor"># endif</span></div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="comment">/* Avoid depending on library functions or files</span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="comment"> whose names are inconsistent. */</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> </div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="preprocessor">#ifndef getenv</span></div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="preprocessor"></span><span class="keyword">extern</span> <span class="keywordtype">char</span> *getenv ();</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="keyword">static</span> <span class="keywordtype">char</span> *</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> my_index (str, chr)</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  const <span class="keywordtype">char</span> *str;</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordtype">int</span> chr;</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> {</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">while</span> (*str)</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  {</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordflow">if</span> (*str == chr)</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordflow">return</span> (<span class="keywordtype">char</span> *) str;</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  str++;</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  }</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> }</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> </div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment">/* If using GCC, we can safely declare strlen this way.</span></div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment"> If not using GCC, it is ok not to declare it. */</span></div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="preprocessor">#ifdef __GNUC__</span></div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="preprocessor"></span><span class="comment">/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.</span></div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="comment"> That was relevant to code that was here before. */</span></div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="preprocessor"># if (!defined __STDC__ || !__STDC__) && !defined strlen</span></div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="preprocessor"></span><span class="comment">/* gcc with -traditional declares the built-in strlen to return int,</span></div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="comment"> and has done so at least since version 2.4.5. -- rms. */</span></div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="keyword">extern</span> <span class="keywordtype">int</span> strlen (<span class="keyword">const</span> <span class="keywordtype">char</span> *);</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="preprocessor"># endif </span><span class="comment">/* not __STDC__ */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* __GNUC__ */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="preprocessor">#endif </span><span class="comment">/* not __GNU_LIBRARY__ */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="preprocessor"></span> </div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="comment">/* Handle permutation of arguments. */</span></div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> </div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="comment">/* Describe the part of ARGV that contains non-options that have</span></div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="comment"> been skipped. `first_nonopt' is the index in ARGV of the first of them;</span></div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span> <span class="comment"> `last_nonopt' is the index after the last of them. */</span></div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> </div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="keyword">static</span> <span class="keywordtype">int</span> first_nonopt;</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="keyword">static</span> <span class="keywordtype">int</span> last_nonopt;</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> </div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="preprocessor">#ifdef _LIBC</span></div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="preprocessor"></span><span class="comment">/* Stored original parameters.</span></div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="comment"> XXX This is no good solution. We should rather copy the args so</span></div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="comment"> that we can compare them later. But we must not use malloc(3). */</span></div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="keyword">extern</span> <span class="keywordtype">int</span> __libc_argc;</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span> <span class="keyword">extern</span> <span class="keywordtype">char</span> **__libc_argv;</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> </div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> <span class="comment">/* Bash 2.0 gives us an environment variable containing flags</span></div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="comment"> indicating ARGV elements that should not be considered arguments. */</span></div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span> </div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="preprocessor"># ifdef USE_NONOPTION_FLAGS</span></div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="preprocessor"></span><span class="comment">/* Defined in getopt_init.c */</span></div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="keyword">extern</span> <span class="keywordtype">char</span> *__getopt_nonoption_flags;</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> </div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="keyword">static</span> <span class="keywordtype">int</span> nonoption_flags_max_len;</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="keyword">static</span> <span class="keywordtype">int</span> nonoption_flags_len;</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="preprocessor"># endif</span></div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span> <span class="preprocessor"># ifdef USE_NONOPTION_FLAGS</span></div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> <span class="preprocessor"></span><span class="preprocessor"># define SWAP_FLAGS(ch1, ch2) \</span></div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="preprocessor"> if (nonoption_flags_len > 0) \</span></div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="preprocessor"> { \</span></div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="preprocessor"> char __tmp = __getopt_nonoption_flags[ch1]; \</span></div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="preprocessor"> __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \</span></div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span> <span class="preprocessor"> __getopt_nonoption_flags[ch2] = __tmp; \</span></div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span> <span class="preprocessor"> }</span></div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="preprocessor"></span><span class="preprocessor"># else</span></div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="preprocessor"></span><span class="preprocessor"># define SWAP_FLAGS(ch1, ch2)</span></div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="preprocessor"></span><span class="preprocessor"># endif</span></div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span> <span class="preprocessor"></span><span class="preprocessor">#else </span><span class="comment">/* !_LIBC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="preprocessor"></span><span class="preprocessor"># define SWAP_FLAGS(ch1, ch2)</span></div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* _LIBC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="comment">/* Exchange two adjacent subsequences of ARGV.</span></div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="comment"> One subsequence is elements [first_nonopt,last_nonopt)</span></div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="comment"> which contains all the non-options that have been skipped so far.</span></div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="comment"> The other is elements [last_nonopt,optind), which contains all</span></div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="comment"> the options processed since those non-options were skipped.</span></div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="comment"></span></div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="comment"> `first_nonopt' and `last_nonopt' are relocated so that they describe</span></div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="comment"> the new indices of the non-options in ARGV after they are moved. */</span></div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span> </div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="preprocessor">#if defined __STDC__ && __STDC__</span></div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">void</span> exchange (<span class="keywordtype">char</span> **);</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span> exchange (argv)</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  char **argv;</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span> {</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keywordtype">int</span> bottom = first_nonopt;</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keywordtype">int</span> middle = last_nonopt;</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="keywordtype">int</span> top = optind;</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keywordtype">char</span> *tem;</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> </div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="comment">/* Exchange the shorter segment with the far end of the longer segment.</span></div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span> <span class="comment"> That puts the shorter segment into the right place.</span></div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span> <span class="comment"> It leaves the longer segment in the right place overall,</span></div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> <span class="comment"> but it consists of two parts that need to be swapped next. */</span></div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> </div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span> <span class="preprocessor">#if defined _LIBC && defined USE_NONOPTION_FLAGS</span></div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> <span class="preprocessor"></span> <span class="comment">/* First make sure the handling of the `__getopt_nonoption_flags'</span></div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span> <span class="comment"> string can work normally. Our top argument must be in the range</span></div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> <span class="comment"> of the string. */</span></div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keywordflow">if</span> (nonoption_flags_len > 0 && top >= nonoption_flags_max_len)</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  {</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="comment">/* We must extend the array. The user plays games with us and</span></div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span> <span class="comment"> presents new arguments. */</span></div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keywordtype">char</span> *new_str = malloc (top + 1);</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="keywordflow">if</span> (new_str == NULL)</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  nonoption_flags_len = nonoption_flags_max_len = 0;</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  {</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  memset (__mempcpy (new_str, __getopt_nonoption_flags,</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  nonoption_flags_max_len),</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="charliteral">'\0'</span>, top + 1 - nonoption_flags_max_len);</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  nonoption_flags_max_len = top + 1;</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  __getopt_nonoption_flags = new_str;</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  }</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  }</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="keywordflow">while</span> (top > middle && middle > bottom)</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  {</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keywordflow">if</span> (top - middle > middle - bottom)</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  {</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="comment">/* Bottom segment is the short one. */</span></div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="keywordtype">int</span> len = middle - bottom;</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keyword">register</span> <span class="keywordtype">int</span> i;</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span> </div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="comment">/* Swap it with the top part of the top segment. */</span></div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="keywordflow">for</span> (i = 0; i < len; i++)</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  {</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  tem = argv[bottom + i];</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  argv[bottom + i] = argv[top - (middle - bottom) + i];</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  argv[top - (middle - bottom) + i] = tem;</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  }</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="comment">/* Exclude the moved bottom segment from further swapping. */</span></div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  top -= len;</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  }</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  {</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="comment">/* Top segment is the short one. */</span></div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="keywordtype">int</span> len = top - middle;</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keyword">register</span> <span class="keywordtype">int</span> i;</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span> </div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="comment">/* Swap it with the bottom part of the bottom segment. */</span></div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keywordflow">for</span> (i = 0; i < len; i++)</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  {</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  tem = argv[bottom + i];</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  argv[bottom + i] = argv[middle + i];</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  argv[middle + i] = tem;</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  SWAP_FLAGS (bottom + i, middle + i);</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  }</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="comment">/* Exclude the moved top segment from further swapping. */</span></div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  bottom += len;</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  }</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  }</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> </div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="comment">/* Update records for the slots the non-options now occupy. */</span></div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> </div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  first_nonopt += (optind - last_nonopt);</div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  last_nonopt = optind;</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span> }</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span> </div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span> <span class="comment">/* Initialize the internal data when the first call is made. */</span></div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span> </div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span> <span class="preprocessor">#if defined __STDC__ && __STDC__</span></div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *_getopt_initialize (<span class="keywordtype">int</span>, <span class="keywordtype">char</span> *<span class="keyword">const</span> *, <span class="keyword">const</span> <span class="keywordtype">char</span> *);</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span> _getopt_initialize (argc, argv, optstring)</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  int argc;</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordtype">char</span> *const *argv;</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  const <span class="keywordtype">char</span> *optstring;</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span> {</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="comment">/* Start processing options with ARGV-element 1 (since ARGV-element 0</span></div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span> <span class="comment"> is the program name); the sequence of previously skipped</span></div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span> <span class="comment"> non-option ARGV-elements is empty. */</span></div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span> </div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  first_nonopt = last_nonopt = optind;</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span> </div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  nextchar = NULL;</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> </div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  posixly_correct = getenv (<span class="stringliteral">"POSIXLY_CORRECT"</span>);</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span> </div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="comment">/* Determine how to handle the ordering of options and nonoptions. */</span></div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span> </div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keywordflow">if</span> (optstring[0] == <span class="charliteral">'-'</span>)</div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  {</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  ordering = RETURN_IN_ORDER;</div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  ++optstring;</div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  }</div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (optstring[0] == <span class="charliteral">'+'</span>)</div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  {</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  ordering = REQUIRE_ORDER;</div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  ++optstring;</div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  }</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (posixly_correct != NULL)</div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  ordering = REQUIRE_ORDER;</div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  ordering = PERMUTE;</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span> </div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span> <span class="preprocessor">#if defined _LIBC && defined USE_NONOPTION_FLAGS</span></div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (posixly_correct == NULL</div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  && argc == __libc_argc && argv == __libc_argv)</div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  {</div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <span class="keywordflow">if</span> (nonoption_flags_max_len == 0)</div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  {</div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="keywordflow">if</span> (__getopt_nonoption_flags == NULL</div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  || __getopt_nonoption_flags[0] == <span class="charliteral">'\0'</span>)</div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  nonoption_flags_max_len = -1;</div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  {</div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *orig_str = __getopt_nonoption_flags;</div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keywordtype">int</span> len = nonoption_flags_max_len = strlen (orig_str);</div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keywordflow">if</span> (nonoption_flags_max_len < argc)</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  nonoption_flags_max_len = argc;</div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  __getopt_nonoption_flags =</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  (<span class="keywordtype">char</span> *) malloc (nonoption_flags_max_len);</div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="keywordflow">if</span> (__getopt_nonoption_flags == NULL)</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  nonoption_flags_max_len = -1;</div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),</div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="charliteral">'\0'</span>, nonoption_flags_max_len - len);</div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  }</div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  }</div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  nonoption_flags_len = nonoption_flags_max_len;</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  }</div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  nonoption_flags_len = 0;</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordflow">return</span> optstring;</div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span> }</div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  </div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span> <span class="comment">/* Scan elements of ARGV (whose length is ARGC) for option characters</span></div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span> <span class="comment"> given in OPTSTRING.</span></div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span> <span class="comment"></span></div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span> <span class="comment"> If an element of ARGV starts with '-', and is not exactly "-" or "--",</span></div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span> <span class="comment"> then it is an option element. The characters of this element</span></div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span> <span class="comment"> (aside from the initial '-') are option characters. If `getopt'</span></div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span> <span class="comment"> is called repeatedly, it returns successively each of the option characters</span></div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span> <span class="comment"> from each of the option elements.</span></div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span> <span class="comment"></span></div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span> <span class="comment"> If `getopt' finds another option character, it returns that character,</span></div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span> <span class="comment"> updating `optind' and `nextchar' so that the next call to `getopt' can</span></div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span> <span class="comment"> resume the scan with the following option character or ARGV-element.</span></div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span> <span class="comment"></span></div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span> <span class="comment"> If there are no more option characters, `getopt' returns -1.</span></div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span> <span class="comment"> Then `optind' is the index in ARGV of the first ARGV-element</span></div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span> <span class="comment"> that is not an option. (The ARGV-elements have been permuted</span></div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span> <span class="comment"> so that those that are not options now come last.)</span></div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span> <span class="comment"></span></div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span> <span class="comment"> OPTSTRING is a string containing the legitimate option characters.</span></div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span> <span class="comment"> If an option character is seen that is not listed in OPTSTRING,</span></div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span> <span class="comment"> return '?' after printing an error message. If you set `opterr' to</span></div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span> <span class="comment"> zero, the error message is suppressed but we still return '?'.</span></div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span> <span class="comment"></span></div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span> <span class="comment"> If a char in OPTSTRING is followed by a colon, that means it wants an arg,</span></div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span> <span class="comment"> so the following text in the same ARGV-element, or the text of the following</span></div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span> <span class="comment"> ARGV-element, is returned in `optarg'. Two colons mean an option that</span></div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span> <span class="comment"> wants an optional arg; if there is text in the current ARGV-element,</span></div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span> <span class="comment"> it is returned in `optarg', otherwise `optarg' is set to zero.</span></div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span> <span class="comment"></span></div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span> <span class="comment"> If OPTSTRING starts with `-' or `+', it requests different methods of</span></div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span> <span class="comment"> handling the non-option ARGV-elements.</span></div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span> <span class="comment"> See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.</span></div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span> <span class="comment"></span></div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span> <span class="comment"> Long-named options begin with `--' instead of `-'.</span></div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span> <span class="comment"> Their names may be abbreviated as long as the abbreviation is unique</span></div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span> <span class="comment"> or is an exact match for some defined option. If they have an</span></div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span> <span class="comment"> argument, it follows the option name in the same ARGV-element, separated</span></div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span> <span class="comment"> from the option name by a `=', or else the in next ARGV-element.</span></div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span> <span class="comment"> When `getopt' finds a long-named option, it returns 0 if that option's</span></div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span> <span class="comment"> `flag' field is nonzero, the value of the option's `val' field</span></div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span> <span class="comment"> if the `flag' field is zero.</span></div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span> <span class="comment"></span></div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span> <span class="comment"> The elements of ARGV aren't really const, because we permute them.</span></div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span> <span class="comment"> But we pretend they're const in the prototype to be compatible</span></div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span> <span class="comment"> with other systems.</span></div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span> <span class="comment"></span></div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span> <span class="comment"> LONGOPTS is a vector of `struct option' terminated by an</span></div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span> <span class="comment"> element containing a name which is zero.</span></div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span> <span class="comment"></span></div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span> <span class="comment"> LONGIND returns the index in LONGOPT of the long-named option found.</span></div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span> <span class="comment"> It is only valid when a long-named option has been found by the most</span></div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span> <span class="comment"> recent call.</span></div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span> <span class="comment"></span></div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span> <span class="comment"> If LONG_ONLY is nonzero, '-' as well as '--' can introduce</span></div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span> <span class="comment"> long-named options. */</span></div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span> </div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span> _getopt_internal (argc, argv, optstring, longopts, longind, long_only)</div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  int argc;</div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  <span class="keywordtype">char</span> *const *argv;</div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  const <span class="keywordtype">char</span> *optstring;</div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  const struct <a class="code" href="structoption.html">option</a> *longopts;</div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="keywordtype">int</span> *longind;</div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  <span class="keywordtype">int</span> long_only;</div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span> {</div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <span class="keywordtype">int</span> print_errors = opterr;</div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <span class="keywordflow">if</span> (optstring[0] == <span class="charliteral">':'</span>)</div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  print_errors = 0;</div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span> </div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <span class="keywordflow">if</span> (argc < 1)</div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span> </div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  optarg = NULL;</div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span> </div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="keywordflow">if</span> (optind == 0 || !__getopt_initialized)</div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  {</div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <span class="keywordflow">if</span> (optind == 0)</div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  optind = 1; <span class="comment">/* Don't scan ARGV[0], the program name. */</span></div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  optstring = _getopt_initialize (argc, argv, optstring);</div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  __getopt_initialized = 1;</div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  }</div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span> </div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <span class="comment">/* Test whether ARGV[optind] points to a non-option argument.</span></div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span> <span class="comment"> Either it does not have option syntax, or there is an environment flag</span></div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span> <span class="comment"> from the shell indicating it is not an option. The later information</span></div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span> <span class="comment"> is only used when the used in the GNU libc. */</span></div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span> <span class="preprocessor">#if defined _LIBC && defined USE_NONOPTION_FLAGS</span></div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span> <span class="preprocessor"></span><span class="preprocessor"># define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \</span></div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span> <span class="preprocessor"> || (optind < nonoption_flags_len \</span></div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span> <span class="preprocessor"> && __getopt_nonoption_flags[optind] == '1'))</span></div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span> <span class="preprocessor"></span><span class="preprocessor"># define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')</span></div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  <span class="keywordflow">if</span> (nextchar == NULL || *nextchar == <span class="charliteral">'\0'</span>)</div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  {</div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  <span class="comment">/* Advance to the next ARGV-element. */</span></div>
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span> </div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <span class="comment">/* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been</span></div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span> <span class="comment"> moved back by the user (who may also have changed the arguments). */</span></div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="keywordflow">if</span> (last_nonopt > optind)</div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  last_nonopt = optind;</div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  <span class="keywordflow">if</span> (first_nonopt > optind)</div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  first_nonopt = optind;</div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span> </div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  <span class="keywordflow">if</span> (ordering == PERMUTE)</div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  {</div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <span class="comment">/* If we have just processed some options following some non-options,</span></div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span> <span class="comment"> exchange them so that the options come first. */</span></div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span> </div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  <span class="keywordflow">if</span> (first_nonopt != last_nonopt && last_nonopt != optind)</div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  exchange ((<span class="keywordtype">char</span> **) argv);</div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (last_nonopt != optind)</div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  first_nonopt = optind;</div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span> </div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="comment">/* Skip any additional non-options</span></div>
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span> <span class="comment"> and extend the range of non-options previously skipped. */</span></div>
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span> </div>
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  <span class="keywordflow">while</span> (optind < argc && NONOPTION_P)</div>
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  optind++;</div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  last_nonopt = optind;</div>
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  }</div>
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span> </div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  <span class="comment">/* The special ARGV-element `--' means premature end of options.</span></div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span> <span class="comment"> Skip it like a null option,</span></div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span> <span class="comment"> then exchange with previous non-options as if it were an option,</span></div>
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span> <span class="comment"> then skip everything else like a non-option. */</span></div>
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span> </div>
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <span class="keywordflow">if</span> (optind != argc && !strcmp (argv[optind], <span class="stringliteral">"--"</span>))</div>
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  {</div>
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  optind++;</div>
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span> </div>
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  <span class="keywordflow">if</span> (first_nonopt != last_nonopt && last_nonopt != optind)</div>
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  exchange ((<span class="keywordtype">char</span> **) argv);</div>
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (first_nonopt == last_nonopt)</div>
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  first_nonopt = optind;</div>
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  last_nonopt = argc;</div>
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span> </div>
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  optind = argc;</div>
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  }</div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span> </div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  <span class="comment">/* If we have done all the ARGV-elements, stop the scan</span></div>
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span> <span class="comment"> and back over any non-options that we skipped and permuted. */</span></div>
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span> </div>
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  <span class="keywordflow">if</span> (optind == argc)</div>
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  {</div>
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  <span class="comment">/* Set the next-arg-index to point at the non-options</span></div>
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span> <span class="comment"> that we previously skipped, so the caller will digest them. */</span></div>
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <span class="keywordflow">if</span> (first_nonopt != last_nonopt)</div>
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  optind = first_nonopt;</div>
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  }</div>
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span> </div>
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  <span class="comment">/* If we have come to a non-option and did not permute it,</span></div>
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span> <span class="comment"> either stop the scan or describe it to the caller and pass it by. */</span></div>
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span> </div>
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  <span class="keywordflow">if</span> (NONOPTION_P)</div>
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  {</div>
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  <span class="keywordflow">if</span> (ordering == REQUIRE_ORDER)</div>
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  optarg = argv[optind++];</div>
<div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  }</div>
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span> </div>
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  <span class="comment">/* We have found another option-ARGV-element.</span></div>
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span> <span class="comment"> Skip the initial punctuation. */</span></div>
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span> </div>
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  nextchar = (argv[optind] + 1</div>
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  + (longopts != NULL && argv[optind][1] == <span class="charliteral">'-'</span>));</div>
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  }</div>
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span> </div>
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  <span class="comment">/* Decode the current option-ARGV-element. */</span></div>
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span> </div>
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  <span class="comment">/* Check whether the ARGV-element is a long option.</span></div>
<div class="line"><a name="l00623"></a><span class="lineno"> 623</span> <span class="comment"></span></div>
<div class="line"><a name="l00624"></a><span class="lineno"> 624</span> <span class="comment"> If long_only and the ARGV-element has the form "-f", where f is</span></div>
<div class="line"><a name="l00625"></a><span class="lineno"> 625</span> <span class="comment"> a valid short option, don't consider it an abbreviated form of</span></div>
<div class="line"><a name="l00626"></a><span class="lineno"> 626</span> <span class="comment"> a long option that starts with f. Otherwise there would be no</span></div>
<div class="line"><a name="l00627"></a><span class="lineno"> 627</span> <span class="comment"> way to give the -f short option.</span></div>
<div class="line"><a name="l00628"></a><span class="lineno"> 628</span> <span class="comment"></span></div>
<div class="line"><a name="l00629"></a><span class="lineno"> 629</span> <span class="comment"> On the other hand, if there's a long option "fubar" and</span></div>
<div class="line"><a name="l00630"></a><span class="lineno"> 630</span> <span class="comment"> the ARGV-element is "-fu", do consider that an abbreviation of</span></div>
<div class="line"><a name="l00631"></a><span class="lineno"> 631</span> <span class="comment"> the long option, just like "--fu", and not "-f" with arg "u".</span></div>
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span> <span class="comment"></span></div>
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span> <span class="comment"> This distinction seems to be the most useful approach. */</span></div>
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span> </div>
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  <span class="keywordflow">if</span> (longopts != NULL</div>
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  && (argv[optind][1] == <span class="charliteral">'-'</span></div>
<div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1])))))</div>
<div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  {</div>
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  <span class="keywordtype">char</span> *nameend;</div>
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structoption.html">option</a> *p;</div>
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structoption.html">option</a> *pfound = NULL;</div>
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  <span class="keywordtype">int</span> exact = 0;</div>
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  <span class="keywordtype">int</span> ambig = 0;</div>
<div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  <span class="keywordtype">int</span> indfound = -1;</div>
<div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  <span class="keywordtype">int</span> option_index;</div>
<div class="line"><a name="l00646"></a><span class="lineno"> 646</span> </div>
<div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  <span class="keywordflow">for</span> (nameend = nextchar; *nameend && *nameend != <span class="charliteral">'='</span>; nameend++)</div>
<div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  <span class="comment">/* Do nothing. */</span> ;</div>
<div class="line"><a name="l00649"></a><span class="lineno"> 649</span> </div>
<div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  <span class="comment">/* Test all long options for either exact match</span></div>
<div class="line"><a name="l00651"></a><span class="lineno"> 651</span> <span class="comment"> or abbreviated matches. */</span></div>
<div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  <span class="keywordflow">for</span> (p = longopts, option_index = 0; p->name; p++, option_index++)</div>
<div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  <span class="keywordflow">if</span> (!strncmp (p->name, nextchar, nameend - nextchar))</div>
<div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  {</div>
<div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) (nameend - nextchar)</div>
<div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  == (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) strlen (p->name))</div>
<div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  {</div>
<div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  <span class="comment">/* Exact match found. */</span></div>
<div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  pfound = p;</div>
<div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  indfound = option_index;</div>
<div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  exact = 1;</div>
<div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  }</div>
<div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pfound == NULL)</div>
<div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  {</div>
<div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  <span class="comment">/* First nonexact match found. */</span></div>
<div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  pfound = p;</div>
<div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  indfound = option_index;</div>
<div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  }</div>
<div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (long_only</div>
<div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  || pfound->has_arg != p->has_arg</div>
<div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  || pfound->flag != p->flag</div>
<div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  || pfound->val != p->val)</div>
<div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  <span class="comment">/* Second or later nonexact match found. */</span></div>
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  ambig = 1;</div>
<div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  }</div>
<div class="line"><a name="l00677"></a><span class="lineno"> 677</span> </div>
<div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  <span class="keywordflow">if</span> (ambig && !exact)</div>
<div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  {</div>
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  <span class="keywordflow">if</span> (print_errors)</div>
<div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  fprintf (stderr, _(<span class="stringliteral">"%s: option `%s' is ambiguous\n"</span>),</div>
<div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  argv[0], argv[optind]);</div>
<div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  nextchar += strlen (nextchar);</div>
<div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  optind++;</div>
<div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  optopt = 0;</div>
<div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  <span class="keywordflow">return</span> <span class="charliteral">'?'</span>;</div>
<div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  }</div>
<div class="line"><a name="l00688"></a><span class="lineno"> 688</span> </div>
<div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  <span class="keywordflow">if</span> (pfound != NULL)</div>
<div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  {</div>
<div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  option_index = indfound;</div>
<div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  optind++;</div>
<div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  <span class="keywordflow">if</span> (*nameend)</div>
<div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  {</div>
<div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  <span class="comment">/* Don't test has_arg with >, because some C compilers don't</span></div>
<div class="line"><a name="l00696"></a><span class="lineno"> 696</span> <span class="comment"> allow it to be used on enums. */</span></div>
<div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  <span class="keywordflow">if</span> (pfound->has_arg)</div>
<div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  optarg = nameend + 1;</div>
<div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  {</div>
<div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  <span class="keywordflow">if</span> (print_errors)</div>
<div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  {</div>
<div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  <span class="keywordflow">if</span> (argv[optind - 1][1] == <span class="charliteral">'-'</span>)</div>
<div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  <span class="comment">/* --option */</span></div>
<div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  fprintf (stderr,</div>
<div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  _(<span class="stringliteral">"%s: option `--%s' doesn't allow an argument\n"</span>),</div>
<div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  argv[0], pfound->name);</div>
<div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  <span class="comment">/* +option or -option */</span></div>
<div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  fprintf (stderr,</div>
<div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  _(<span class="stringliteral">"%s: option `%c%s' doesn't allow an argument\n"</span>),</div>
<div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  argv[0], argv[optind - 1][0], pfound->name);</div>
<div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  }</div>
<div class="line"><a name="l00714"></a><span class="lineno"> 714</span> </div>
<div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  nextchar += strlen (nextchar);</div>
<div class="line"><a name="l00716"></a><span class="lineno"> 716</span> </div>
<div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  optopt = pfound->val;</div>
<div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  <span class="keywordflow">return</span> <span class="charliteral">'?'</span>;</div>
<div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  }</div>
<div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  }</div>
<div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pfound->has_arg == 1)</div>
<div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  {</div>
<div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  <span class="keywordflow">if</span> (optind < argc)</div>
<div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  optarg = argv[optind++];</div>
<div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  {</div>
<div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  <span class="keywordflow">if</span> (print_errors)</div>
<div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  fprintf (stderr,</div>
<div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  _(<span class="stringliteral">"%s: option `%s' requires an argument\n"</span>),</div>
<div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  argv[0], argv[optind - 1]);</div>
<div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  nextchar += strlen (nextchar);</div>
<div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  optopt = pfound->val;</div>
<div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  <span class="keywordflow">return</span> optstring[0] == <span class="charliteral">':'</span> ? <span class="charliteral">':'</span> : <span class="charliteral">'?'</span>;</div>
<div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  }</div>
<div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  }</div>
<div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  nextchar += strlen (nextchar);</div>
<div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  <span class="keywordflow">if</span> (longind != NULL)</div>
<div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  *longind = option_index;</div>
<div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  <span class="keywordflow">if</span> (pfound->flag)</div>
<div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  {</div>
<div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  *(pfound->flag) = pfound->val;</div>
<div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  }</div>
<div class="line"><a name="l00744"></a><span class="lineno"> 744</span>  <span class="keywordflow">return</span> pfound->val;</div>
<div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  }</div>
<div class="line"><a name="l00746"></a><span class="lineno"> 746</span> </div>
<div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  <span class="comment">/* Can't find it as a long option. If this is not getopt_long_only,</span></div>
<div class="line"><a name="l00748"></a><span class="lineno"> 748</span> <span class="comment"> or the option starts with '--' or is not a valid short</span></div>
<div class="line"><a name="l00749"></a><span class="lineno"> 749</span> <span class="comment"> option, then it's an error.</span></div>
<div class="line"><a name="l00750"></a><span class="lineno"> 750</span> <span class="comment"> Otherwise interpret it as a short option. */</span></div>
<div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  <span class="keywordflow">if</span> (!long_only || argv[optind][1] == <span class="charliteral">'-'</span></div>
<div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  || my_index (optstring, *nextchar) == NULL)</div>
<div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  {</div>
<div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  <span class="keywordflow">if</span> (print_errors)</div>
<div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  {</div>
<div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  <span class="keywordflow">if</span> (argv[optind][1] == <span class="charliteral">'-'</span>)</div>
<div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  <span class="comment">/* --option */</span></div>
<div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  fprintf (stderr, _(<span class="stringliteral">"%s: unrecognized option `--%s'\n"</span>),</div>
<div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  argv[0], nextchar);</div>
<div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  <span class="comment">/* +option or -option */</span></div>
<div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  fprintf (stderr, _(<span class="stringliteral">"%s: unrecognized option `%c%s'\n"</span>),</div>
<div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  argv[0], argv[optind][0], nextchar);</div>
<div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  }</div>
<div class="line"><a name="l00765"></a><span class="lineno"> 765</span>  nextchar = (<span class="keywordtype">char</span> *) <span class="stringliteral">""</span>;</div>
<div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  optind++;</div>
<div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  optopt = 0;</div>
<div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  <span class="keywordflow">return</span> <span class="charliteral">'?'</span>;</div>
<div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  }</div>
<div class="line"><a name="l00770"></a><span class="lineno"> 770</span>  }</div>
<div class="line"><a name="l00771"></a><span class="lineno"> 771</span> </div>
<div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  <span class="comment">/* Look at and handle the next short option-character. */</span></div>
<div class="line"><a name="l00773"></a><span class="lineno"> 773</span> </div>
<div class="line"><a name="l00774"></a><span class="lineno"> 774</span>  {</div>
<div class="line"><a name="l00775"></a><span class="lineno"> 775</span>  <span class="keywordtype">char</span> c = *nextchar++;</div>
<div class="line"><a name="l00776"></a><span class="lineno"> 776</span>  <span class="keywordtype">char</span> *temp = my_index (optstring, c);</div>
<div class="line"><a name="l00777"></a><span class="lineno"> 777</span> </div>
<div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  <span class="comment">/* Increment `optind' when we start to process its last character. */</span></div>
<div class="line"><a name="l00779"></a><span class="lineno"> 779</span>  <span class="keywordflow">if</span> (*nextchar == <span class="charliteral">'\0'</span>)</div>
<div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  ++optind;</div>
<div class="line"><a name="l00781"></a><span class="lineno"> 781</span> </div>
<div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  <span class="keywordflow">if</span> (temp == NULL || c == <span class="charliteral">':'</span>)</div>
<div class="line"><a name="l00783"></a><span class="lineno"> 783</span>  {</div>
<div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  <span class="keywordflow">if</span> (print_errors)</div>
<div class="line"><a name="l00785"></a><span class="lineno"> 785</span>  {</div>
<div class="line"><a name="l00786"></a><span class="lineno"> 786</span>  <span class="keywordflow">if</span> (posixly_correct)</div>
<div class="line"><a name="l00787"></a><span class="lineno"> 787</span>  <span class="comment">/* 1003.2 specifies the format of this message. */</span></div>
<div class="line"><a name="l00788"></a><span class="lineno"> 788</span>  fprintf (stderr, _(<span class="stringliteral">"%s: illegal option -- %c\n"</span>),</div>
<div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  argv[0], c);</div>
<div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  fprintf (stderr, _(<span class="stringliteral">"%s: invalid option -- %c\n"</span>),</div>
<div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  argv[0], c);</div>
<div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  }</div>
<div class="line"><a name="l00794"></a><span class="lineno"> 794</span>  optopt = c;</div>
<div class="line"><a name="l00795"></a><span class="lineno"> 795</span>  <span class="keywordflow">return</span> <span class="charliteral">'?'</span>;</div>
<div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  }</div>
<div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  <span class="comment">/* Convenience. Treat POSIX -W foo same as long option --foo */</span></div>
<div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  <span class="keywordflow">if</span> (temp[0] == <span class="charliteral">'W'</span> && temp[1] == <span class="charliteral">';'</span>)</div>
<div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  {</div>
<div class="line"><a name="l00800"></a><span class="lineno"> 800</span>  <span class="keywordtype">char</span> *nameend;</div>
<div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structoption.html">option</a> *p;</div>
<div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structoption.html">option</a> *pfound = NULL;</div>
<div class="line"><a name="l00803"></a><span class="lineno"> 803</span>  <span class="keywordtype">int</span> exact = 0;</div>
<div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  <span class="keywordtype">int</span> ambig = 0;</div>
<div class="line"><a name="l00805"></a><span class="lineno"> 805</span>  <span class="keywordtype">int</span> indfound = 0;</div>
<div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  <span class="keywordtype">int</span> option_index;</div>
<div class="line"><a name="l00807"></a><span class="lineno"> 807</span> </div>
<div class="line"><a name="l00808"></a><span class="lineno"> 808</span>  <span class="comment">/* This is an option that requires an argument. */</span></div>
<div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  <span class="keywordflow">if</span> (*nextchar != <span class="charliteral">'\0'</span>)</div>
<div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  {</div>
<div class="line"><a name="l00811"></a><span class="lineno"> 811</span>  optarg = nextchar;</div>
<div class="line"><a name="l00812"></a><span class="lineno"> 812</span>  <span class="comment">/* If we end this ARGV-element by taking the rest as an arg,</span></div>
<div class="line"><a name="l00813"></a><span class="lineno"> 813</span> <span class="comment"> we must advance to the next element now. */</span></div>
<div class="line"><a name="l00814"></a><span class="lineno"> 814</span>  optind++;</div>
<div class="line"><a name="l00815"></a><span class="lineno"> 815</span>  }</div>
<div class="line"><a name="l00816"></a><span class="lineno"> 816</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (optind == argc)</div>
<div class="line"><a name="l00817"></a><span class="lineno"> 817</span>  {</div>
<div class="line"><a name="l00818"></a><span class="lineno"> 818</span>  <span class="keywordflow">if</span> (print_errors)</div>
<div class="line"><a name="l00819"></a><span class="lineno"> 819</span>  {</div>
<div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  <span class="comment">/* 1003.2 specifies the format of this message. */</span></div>
<div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  fprintf (stderr, _(<span class="stringliteral">"%s: option requires an argument -- %c\n"</span>),</div>
<div class="line"><a name="l00822"></a><span class="lineno"> 822</span>  argv[0], c);</div>
<div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  }</div>
<div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  optopt = c;</div>
<div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  <span class="keywordflow">if</span> (optstring[0] == <span class="charliteral">':'</span>)</div>
<div class="line"><a name="l00826"></a><span class="lineno"> 826</span>  c = <span class="charliteral">':'</span>;</div>
<div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00828"></a><span class="lineno"> 828</span>  c = <span class="charliteral">'?'</span>;</div>
<div class="line"><a name="l00829"></a><span class="lineno"> 829</span>  <span class="keywordflow">return</span> c;</div>
<div class="line"><a name="l00830"></a><span class="lineno"> 830</span>  }</div>
<div class="line"><a name="l00831"></a><span class="lineno"> 831</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00832"></a><span class="lineno"> 832</span>  <span class="comment">/* We already incremented `optind' once;</span></div>
<div class="line"><a name="l00833"></a><span class="lineno"> 833</span> <span class="comment"> increment it again when taking next ARGV-elt as argument. */</span></div>
<div class="line"><a name="l00834"></a><span class="lineno"> 834</span>  optarg = argv[optind++];</div>
<div class="line"><a name="l00835"></a><span class="lineno"> 835</span> </div>
<div class="line"><a name="l00836"></a><span class="lineno"> 836</span>  <span class="comment">/* optarg is now the argument, see if it's in the</span></div>
<div class="line"><a name="l00837"></a><span class="lineno"> 837</span> <span class="comment"> table of longopts. */</span></div>
<div class="line"><a name="l00838"></a><span class="lineno"> 838</span> </div>
<div class="line"><a name="l00839"></a><span class="lineno"> 839</span>  <span class="keywordflow">for</span> (nextchar = nameend = optarg; *nameend && *nameend != <span class="charliteral">'='</span>; nameend++)</div>
<div class="line"><a name="l00840"></a><span class="lineno"> 840</span>  <span class="comment">/* Do nothing. */</span> ;</div>
<div class="line"><a name="l00841"></a><span class="lineno"> 841</span> </div>
<div class="line"><a name="l00842"></a><span class="lineno"> 842</span>  <span class="comment">/* Test all long options for either exact match</span></div>
<div class="line"><a name="l00843"></a><span class="lineno"> 843</span> <span class="comment"> or abbreviated matches. */</span></div>
<div class="line"><a name="l00844"></a><span class="lineno"> 844</span>  <span class="keywordflow">for</span> (p = longopts, option_index = 0; p->name; p++, option_index++)</div>
<div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  <span class="keywordflow">if</span> (!strncmp (p->name, nextchar, nameend - nextchar))</div>
<div class="line"><a name="l00846"></a><span class="lineno"> 846</span>  {</div>
<div class="line"><a name="l00847"></a><span class="lineno"> 847</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) (nameend - nextchar) == strlen (p->name))</div>
<div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  {</div>
<div class="line"><a name="l00849"></a><span class="lineno"> 849</span>  <span class="comment">/* Exact match found. */</span></div>
<div class="line"><a name="l00850"></a><span class="lineno"> 850</span>  pfound = p;</div>
<div class="line"><a name="l00851"></a><span class="lineno"> 851</span>  indfound = option_index;</div>
<div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  exact = 1;</div>
<div class="line"><a name="l00853"></a><span class="lineno"> 853</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00854"></a><span class="lineno"> 854</span>  }</div>
<div class="line"><a name="l00855"></a><span class="lineno"> 855</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pfound == NULL)</div>
<div class="line"><a name="l00856"></a><span class="lineno"> 856</span>  {</div>
<div class="line"><a name="l00857"></a><span class="lineno"> 857</span>  <span class="comment">/* First nonexact match found. */</span></div>
<div class="line"><a name="l00858"></a><span class="lineno"> 858</span>  pfound = p;</div>
<div class="line"><a name="l00859"></a><span class="lineno"> 859</span>  indfound = option_index;</div>
<div class="line"><a name="l00860"></a><span class="lineno"> 860</span>  }</div>
<div class="line"><a name="l00861"></a><span class="lineno"> 861</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00862"></a><span class="lineno"> 862</span>  <span class="comment">/* Second or later nonexact match found. */</span></div>
<div class="line"><a name="l00863"></a><span class="lineno"> 863</span>  ambig = 1;</div>
<div class="line"><a name="l00864"></a><span class="lineno"> 864</span>  }</div>
<div class="line"><a name="l00865"></a><span class="lineno"> 865</span>  <span class="keywordflow">if</span> (ambig && !exact)</div>
<div class="line"><a name="l00866"></a><span class="lineno"> 866</span>  {</div>
<div class="line"><a name="l00867"></a><span class="lineno"> 867</span>  <span class="keywordflow">if</span> (print_errors)</div>
<div class="line"><a name="l00868"></a><span class="lineno"> 868</span>  fprintf (stderr, _(<span class="stringliteral">"%s: option `-W %s' is ambiguous\n"</span>),</div>
<div class="line"><a name="l00869"></a><span class="lineno"> 869</span>  argv[0], argv[optind]);</div>
<div class="line"><a name="l00870"></a><span class="lineno"> 870</span>  nextchar += strlen (nextchar);</div>
<div class="line"><a name="l00871"></a><span class="lineno"> 871</span>  optind++;</div>
<div class="line"><a name="l00872"></a><span class="lineno"> 872</span>  <span class="keywordflow">return</span> <span class="charliteral">'?'</span>;</div>
<div class="line"><a name="l00873"></a><span class="lineno"> 873</span>  }</div>
<div class="line"><a name="l00874"></a><span class="lineno"> 874</span>  <span class="keywordflow">if</span> (pfound != NULL)</div>
<div class="line"><a name="l00875"></a><span class="lineno"> 875</span>  {</div>
<div class="line"><a name="l00876"></a><span class="lineno"> 876</span>  option_index = indfound;</div>
<div class="line"><a name="l00877"></a><span class="lineno"> 877</span>  <span class="keywordflow">if</span> (*nameend)</div>
<div class="line"><a name="l00878"></a><span class="lineno"> 878</span>  {</div>
<div class="line"><a name="l00879"></a><span class="lineno"> 879</span>  <span class="comment">/* Don't test has_arg with >, because some C compilers don't</span></div>
<div class="line"><a name="l00880"></a><span class="lineno"> 880</span> <span class="comment"> allow it to be used on enums. */</span></div>
<div class="line"><a name="l00881"></a><span class="lineno"> 881</span>  <span class="keywordflow">if</span> (pfound->has_arg)</div>
<div class="line"><a name="l00882"></a><span class="lineno"> 882</span>  optarg = nameend + 1;</div>
<div class="line"><a name="l00883"></a><span class="lineno"> 883</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00884"></a><span class="lineno"> 884</span>  {</div>
<div class="line"><a name="l00885"></a><span class="lineno"> 885</span>  <span class="keywordflow">if</span> (print_errors)</div>
<div class="line"><a name="l00886"></a><span class="lineno"> 886</span>  fprintf (stderr, _(<span class="stringliteral">"\</span></div>
<div class="line"><a name="l00887"></a><span class="lineno"> 887</span> <span class="stringliteral">%s: option `-W %s' doesn't allow an argument\n"</span>),</div>
<div class="line"><a name="l00888"></a><span class="lineno"> 888</span>  argv[0], pfound->name);</div>
<div class="line"><a name="l00889"></a><span class="lineno"> 889</span> </div>
<div class="line"><a name="l00890"></a><span class="lineno"> 890</span>  nextchar += strlen (nextchar);</div>
<div class="line"><a name="l00891"></a><span class="lineno"> 891</span>  <span class="keywordflow">return</span> <span class="charliteral">'?'</span>;</div>
<div class="line"><a name="l00892"></a><span class="lineno"> 892</span>  }</div>
<div class="line"><a name="l00893"></a><span class="lineno"> 893</span>  }</div>
<div class="line"><a name="l00894"></a><span class="lineno"> 894</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pfound->has_arg == 1)</div>
<div class="line"><a name="l00895"></a><span class="lineno"> 895</span>  {</div>
<div class="line"><a name="l00896"></a><span class="lineno"> 896</span>  <span class="keywordflow">if</span> (optind < argc)</div>
<div class="line"><a name="l00897"></a><span class="lineno"> 897</span>  optarg = argv[optind++];</div>
<div class="line"><a name="l00898"></a><span class="lineno"> 898</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00899"></a><span class="lineno"> 899</span>  {</div>
<div class="line"><a name="l00900"></a><span class="lineno"> 900</span>  <span class="keywordflow">if</span> (print_errors)</div>
<div class="line"><a name="l00901"></a><span class="lineno"> 901</span>  fprintf (stderr,</div>
<div class="line"><a name="l00902"></a><span class="lineno"> 902</span>  _(<span class="stringliteral">"%s: option `%s' requires an argument\n"</span>),</div>
<div class="line"><a name="l00903"></a><span class="lineno"> 903</span>  argv[0], argv[optind - 1]);</div>
<div class="line"><a name="l00904"></a><span class="lineno"> 904</span>  nextchar += strlen (nextchar);</div>
<div class="line"><a name="l00905"></a><span class="lineno"> 905</span>  <span class="keywordflow">return</span> optstring[0] == <span class="charliteral">':'</span> ? <span class="charliteral">':'</span> : <span class="charliteral">'?'</span>;</div>
<div class="line"><a name="l00906"></a><span class="lineno"> 906</span>  }</div>
<div class="line"><a name="l00907"></a><span class="lineno"> 907</span>  }</div>
<div class="line"><a name="l00908"></a><span class="lineno"> 908</span>  nextchar += strlen (nextchar);</div>
<div class="line"><a name="l00909"></a><span class="lineno"> 909</span>  <span class="keywordflow">if</span> (longind != NULL)</div>
<div class="line"><a name="l00910"></a><span class="lineno"> 910</span>  *longind = option_index;</div>
<div class="line"><a name="l00911"></a><span class="lineno"> 911</span>  <span class="keywordflow">if</span> (pfound->flag)</div>
<div class="line"><a name="l00912"></a><span class="lineno"> 912</span>  {</div>
<div class="line"><a name="l00913"></a><span class="lineno"> 913</span>  *(pfound->flag) = pfound->val;</div>
<div class="line"><a name="l00914"></a><span class="lineno"> 914</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00915"></a><span class="lineno"> 915</span>  }</div>
<div class="line"><a name="l00916"></a><span class="lineno"> 916</span>  <span class="keywordflow">return</span> pfound->val;</div>
<div class="line"><a name="l00917"></a><span class="lineno"> 917</span>  }</div>
<div class="line"><a name="l00918"></a><span class="lineno"> 918</span>  nextchar = NULL;</div>
<div class="line"><a name="l00919"></a><span class="lineno"> 919</span>  <span class="keywordflow">return</span> <span class="charliteral">'W'</span>; <span class="comment">/* Let the application handle it. */</span></div>
<div class="line"><a name="l00920"></a><span class="lineno"> 920</span>  }</div>
<div class="line"><a name="l00921"></a><span class="lineno"> 921</span>  <span class="keywordflow">if</span> (temp[1] == <span class="charliteral">':'</span>)</div>
<div class="line"><a name="l00922"></a><span class="lineno"> 922</span>  {</div>
<div class="line"><a name="l00923"></a><span class="lineno"> 923</span>  <span class="keywordflow">if</span> (temp[2] == <span class="charliteral">':'</span>)</div>
<div class="line"><a name="l00924"></a><span class="lineno"> 924</span>  {</div>
<div class="line"><a name="l00925"></a><span class="lineno"> 925</span>  <span class="comment">/* This is an option that accepts an argument optionally. */</span></div>
<div class="line"><a name="l00926"></a><span class="lineno"> 926</span>  <span class="keywordflow">if</span> (*nextchar != <span class="charliteral">'\0'</span>)</div>
<div class="line"><a name="l00927"></a><span class="lineno"> 927</span>  {</div>
<div class="line"><a name="l00928"></a><span class="lineno"> 928</span>  optarg = nextchar;</div>
<div class="line"><a name="l00929"></a><span class="lineno"> 929</span>  optind++;</div>
<div class="line"><a name="l00930"></a><span class="lineno"> 930</span>  }</div>
<div class="line"><a name="l00931"></a><span class="lineno"> 931</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00932"></a><span class="lineno"> 932</span>  optarg = NULL;</div>
<div class="line"><a name="l00933"></a><span class="lineno"> 933</span>  nextchar = NULL;</div>
<div class="line"><a name="l00934"></a><span class="lineno"> 934</span>  }</div>
<div class="line"><a name="l00935"></a><span class="lineno"> 935</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00936"></a><span class="lineno"> 936</span>  {</div>
<div class="line"><a name="l00937"></a><span class="lineno"> 937</span>  <span class="comment">/* This is an option that requires an argument. */</span></div>
<div class="line"><a name="l00938"></a><span class="lineno"> 938</span>  <span class="keywordflow">if</span> (*nextchar != <span class="charliteral">'\0'</span>)</div>
<div class="line"><a name="l00939"></a><span class="lineno"> 939</span>  {</div>
<div class="line"><a name="l00940"></a><span class="lineno"> 940</span>  optarg = nextchar;</div>
<div class="line"><a name="l00941"></a><span class="lineno"> 941</span>  <span class="comment">/* If we end this ARGV-element by taking the rest as an arg,</span></div>
<div class="line"><a name="l00942"></a><span class="lineno"> 942</span> <span class="comment"> we must advance to the next element now. */</span></div>
<div class="line"><a name="l00943"></a><span class="lineno"> 943</span>  optind++;</div>
<div class="line"><a name="l00944"></a><span class="lineno"> 944</span>  }</div>
<div class="line"><a name="l00945"></a><span class="lineno"> 945</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (optind == argc)</div>
<div class="line"><a name="l00946"></a><span class="lineno"> 946</span>  {</div>
<div class="line"><a name="l00947"></a><span class="lineno"> 947</span>  <span class="keywordflow">if</span> (print_errors)</div>
<div class="line"><a name="l00948"></a><span class="lineno"> 948</span>  {</div>
<div class="line"><a name="l00949"></a><span class="lineno"> 949</span>  <span class="comment">/* 1003.2 specifies the format of this message. */</span></div>
<div class="line"><a name="l00950"></a><span class="lineno"> 950</span>  fprintf (stderr,</div>
<div class="line"><a name="l00951"></a><span class="lineno"> 951</span>  _(<span class="stringliteral">"%s: option requires an argument -- %c\n"</span>),</div>
<div class="line"><a name="l00952"></a><span class="lineno"> 952</span>  argv[0], c);</div>
<div class="line"><a name="l00953"></a><span class="lineno"> 953</span>  }</div>
<div class="line"><a name="l00954"></a><span class="lineno"> 954</span>  optopt = c;</div>
<div class="line"><a name="l00955"></a><span class="lineno"> 955</span>  <span class="keywordflow">if</span> (optstring[0] == <span class="charliteral">':'</span>)</div>
<div class="line"><a name="l00956"></a><span class="lineno"> 956</span>  c = <span class="charliteral">':'</span>;</div>
<div class="line"><a name="l00957"></a><span class="lineno"> 957</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00958"></a><span class="lineno"> 958</span>  c = <span class="charliteral">'?'</span>;</div>
<div class="line"><a name="l00959"></a><span class="lineno"> 959</span>  }</div>
<div class="line"><a name="l00960"></a><span class="lineno"> 960</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00961"></a><span class="lineno"> 961</span>  <span class="comment">/* We already incremented `optind' once;</span></div>
<div class="line"><a name="l00962"></a><span class="lineno"> 962</span> <span class="comment"> increment it again when taking next ARGV-elt as argument. */</span></div>
<div class="line"><a name="l00963"></a><span class="lineno"> 963</span>  optarg = argv[optind++];</div>
<div class="line"><a name="l00964"></a><span class="lineno"> 964</span>  nextchar = NULL;</div>
<div class="line"><a name="l00965"></a><span class="lineno"> 965</span>  }</div>
<div class="line"><a name="l00966"></a><span class="lineno"> 966</span>  }</div>
<div class="line"><a name="l00967"></a><span class="lineno"> 967</span>  <span class="keywordflow">return</span> c;</div>
<div class="line"><a name="l00968"></a><span class="lineno"> 968</span>  }</div>
<div class="line"><a name="l00969"></a><span class="lineno"> 969</span> }</div>
<div class="line"><a name="l00970"></a><span class="lineno"> 970</span> </div>
<div class="line"><a name="l00971"></a><span class="lineno"> 971</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00972"></a><span class="lineno"> 972</span> getopt (argc, argv, optstring)</div>
<div class="line"><a name="l00973"></a><span class="lineno"> 973</span>  int argc;</div>
<div class="line"><a name="l00974"></a><span class="lineno"> 974</span>  <span class="keywordtype">char</span> *const *argv;</div>
<div class="line"><a name="l00975"></a><span class="lineno"> 975</span>  const <span class="keywordtype">char</span> *optstring;</div>
<div class="line"><a name="l00976"></a><span class="lineno"> 976</span> {</div>
<div class="line"><a name="l00977"></a><span class="lineno"> 977</span>  <span class="keywordflow">return</span> _getopt_internal (argc, argv, optstring,</div>
<div class="line"><a name="l00978"></a><span class="lineno"> 978</span>  (<span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structoption.html">option</a> *) 0,</div>
<div class="line"><a name="l00979"></a><span class="lineno"> 979</span>  (<span class="keywordtype">int</span> *) 0,</div>
<div class="line"><a name="l00980"></a><span class="lineno"> 980</span>  0);</div>
<div class="line"><a name="l00981"></a><span class="lineno"> 981</span> }</div>
<div class="line"><a name="l00982"></a><span class="lineno"> 982</span> </div>
<div class="line"><a name="l00983"></a><span class="lineno"> 983</span> <span class="preprocessor">#endif </span><span class="comment">/* Not ELIDE_CODE. */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00984"></a><span class="lineno"> 984</span> <span class="preprocessor"></span> </div>
<div class="line"><a name="l00985"></a><span class="lineno"> 985</span> <span class="preprocessor">#ifdef TEST</span></div>
<div class="line"><a name="l00986"></a><span class="lineno"> 986</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00987"></a><span class="lineno"> 987</span> <span class="comment">/* Compile with -DTEST to make an executable for use in testing</span></div>
<div class="line"><a name="l00988"></a><span class="lineno"> 988</span> <span class="comment"> the above definition of `getopt'. */</span></div>
<div class="line"><a name="l00989"></a><span class="lineno"> 989</span> </div>
<div class="line"><a name="l00990"></a><span class="lineno"> 990</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00991"></a><span class="lineno"> 991</span> <a class="code" href="ofxdump_8cpp.html#a0ddf1224851353fc92bfbff6f499fa97">main</a> (argc, argv)</div>
<div class="line"><a name="l00992"></a><span class="lineno"> 992</span>  int argc;</div>
<div class="line"><a name="l00993"></a><span class="lineno"> 993</span>  <span class="keywordtype">char</span> **argv;</div>
<div class="line"><a name="l00994"></a><span class="lineno"> 994</span> {</div>
<div class="line"><a name="l00995"></a><span class="lineno"> 995</span>  <span class="keywordtype">int</span> c;</div>
<div class="line"><a name="l00996"></a><span class="lineno"> 996</span>  <span class="keywordtype">int</span> digit_optind = 0;</div>
<div class="line"><a name="l00997"></a><span class="lineno"> 997</span> </div>
<div class="line"><a name="l00998"></a><span class="lineno"> 998</span>  <span class="keywordflow">while</span> (1)</div>
<div class="line"><a name="l00999"></a><span class="lineno"> 999</span>  {</div>
<div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>  <span class="keywordtype">int</span> this_option_optind = optind ? optind : 1;</div>
<div class="line"><a name="l01001"></a><span class="lineno"> 1001</span> </div>
<div class="line"><a name="l01002"></a><span class="lineno"> 1002</span>  c = getopt (argc, argv, <span class="stringliteral">"abc:d:0123456789"</span>);</div>
<div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>  <span class="keywordflow">if</span> (c == -1)</div>
<div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01005"></a><span class="lineno"> 1005</span> </div>
<div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>  <span class="keywordflow">switch</span> (c)</div>
<div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>  {</div>
<div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>  <span class="keywordflow">case</span> <span class="charliteral">'0'</span>:</div>
<div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>  <span class="keywordflow">case</span> <span class="charliteral">'1'</span>:</div>
<div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>  <span class="keywordflow">case</span> <span class="charliteral">'2'</span>:</div>
<div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>  <span class="keywordflow">case</span> <span class="charliteral">'3'</span>:</div>
<div class="line"><a name="l01012"></a><span class="lineno"> 1012</span>  <span class="keywordflow">case</span> <span class="charliteral">'4'</span>:</div>
<div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>  <span class="keywordflow">case</span> <span class="charliteral">'5'</span>:</div>
<div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>  <span class="keywordflow">case</span> <span class="charliteral">'6'</span>:</div>
<div class="line"><a name="l01015"></a><span class="lineno"> 1015</span>  <span class="keywordflow">case</span> <span class="charliteral">'7'</span>:</div>
<div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>  <span class="keywordflow">case</span> <span class="charliteral">'8'</span>:</div>
<div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>  <span class="keywordflow">case</span> <span class="charliteral">'9'</span>:</div>
<div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>  <span class="keywordflow">if</span> (digit_optind != 0 && digit_optind != this_option_optind)</div>
<div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>  printf (<span class="stringliteral">"digits occur in two different argv-elements.\n"</span>);</div>
<div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>  digit_optind = this_option_optind;</div>
<div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>  printf (<span class="stringliteral">"option %c\n"</span>, c);</div>
<div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01023"></a><span class="lineno"> 1023</span> </div>
<div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>  <span class="keywordflow">case</span> <span class="charliteral">'a'</span>:</div>
<div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>  printf (<span class="stringliteral">"option a\n"</span>);</div>
<div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01027"></a><span class="lineno"> 1027</span> </div>
<div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>  <span class="keywordflow">case</span> <span class="charliteral">'b'</span>:</div>
<div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>  printf (<span class="stringliteral">"option b\n"</span>);</div>
<div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01031"></a><span class="lineno"> 1031</span> </div>
<div class="line"><a name="l01032"></a><span class="lineno"> 1032</span>  <span class="keywordflow">case</span> <span class="charliteral">'c'</span>:</div>
<div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>  printf (<span class="stringliteral">"option c with value `%s'\n"</span>, optarg);</div>
<div class="line"><a name="l01034"></a><span class="lineno"> 1034</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01035"></a><span class="lineno"> 1035</span> </div>
<div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>  <span class="keywordflow">case</span> <span class="charliteral">'?'</span>:</div>
<div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01038"></a><span class="lineno"> 1038</span> </div>
<div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l01040"></a><span class="lineno"> 1040</span>  printf (<span class="stringliteral">"?? getopt returned character code 0%o ??\n"</span>, c);</div>
<div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>  }</div>
<div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>  }</div>
<div class="line"><a name="l01043"></a><span class="lineno"> 1043</span> </div>
<div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>  <span class="keywordflow">if</span> (optind < argc)</div>
<div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>  {</div>
<div class="line"><a name="l01046"></a><span class="lineno"> 1046</span>  printf (<span class="stringliteral">"non-option ARGV-elements: "</span>);</div>
<div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>  <span class="keywordflow">while</span> (optind < argc)</div>
<div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>  printf (<span class="stringliteral">"%s "</span>, argv[optind++]);</div>
<div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>  printf (<span class="stringliteral">"\n"</span>);</div>
<div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>  }</div>
<div class="line"><a name="l01051"></a><span class="lineno"> 1051</span> </div>
<div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>  exit (0);</div>
<div class="line"><a name="l01053"></a><span class="lineno"> 1053</span> }</div>
<div class="line"><a name="l01054"></a><span class="lineno"> 1054</span> </div>
<div class="line"><a name="l01055"></a><span class="lineno"> 1055</span> <span class="preprocessor">#endif </span><span class="comment">/* TEST */</span><span class="preprocessor"></span></div>
<div class="ttc" id="structoption_html"><div class="ttname"><a href="structoption.html">option</a></div><div class="ttdef"><b>Definition:</b> <a href="gnugetopt_8h_source.html#l00094">gnugetopt.h:94</a></div></div>
<div class="ttc" id="ofxdump_8cpp_html_a0ddf1224851353fc92bfbff6f499fa97"><div class="ttname"><a href="ofxdump_8cpp.html#a0ddf1224851353fc92bfbff6f499fa97">main</a></div><div class="ttdeci">int main(int argc, char *argv[])</div><div class="ttdef"><b>Definition:</b> <a href="ofxdump_8cpp_source.html#l00434">ofxdump.cpp:434</a></div></div>
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