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<h1>getopt.cc</h1><a href="a00104.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// -*- Mode: C++; -*-</span>
<a name="l00002"></a>00002 <span class="comment">// Package : omniEvents</span>
<a name="l00003"></a>00003 <span class="comment">// getopt.cc Created : 1/4/98</span>
<a name="l00004"></a>00004 <span class="comment">// Author : Paul Nader (pwn)</span>
<a name="l00005"></a>00005 <span class="comment">//</span>
<a name="l00006"></a>00006 <span class="comment">// Copyright (C) 1998 Paul Nader.</span>
<a name="l00007"></a>00007 <span class="comment">//</span>
<a name="l00008"></a>00008 <span class="comment">// This file is part of the omniEvents application.</span>
<a name="l00009"></a>00009 <span class="comment">//</span>
<a name="l00010"></a>00010 <span class="comment">// omniEvents is free software; you can redistribute it and/or</span>
<a name="l00011"></a>00011 <span class="comment">// modify it under the terms of the GNU Lesser General Public</span>
<a name="l00012"></a>00012 <span class="comment">// License as published by the Free Software Foundation; either</span>
<a name="l00013"></a>00013 <span class="comment">// version 2.1 of the License, or (at your option) any later version.</span>
<a name="l00014"></a>00014 <span class="comment">//</span>
<a name="l00015"></a>00015 <span class="comment">// omniEvents is distributed in the hope that it will be useful,</span>
<a name="l00016"></a>00016 <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00017"></a>00017 <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00018"></a>00018 <span class="comment">// Lesser General Public License for more details.</span>
<a name="l00019"></a>00019 <span class="comment">//</span>
<a name="l00020"></a>00020 <span class="comment">// You should have received a copy of the GNU Lesser General Public</span>
<a name="l00021"></a>00021 <span class="comment">// License along with this library; if not, write to the Free Software</span>
<a name="l00022"></a>00022 <span class="comment">// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
<a name="l00023"></a>00023 <span class="comment">//</span>
<a name="l00024"></a>00024 <span class="comment">// Description:</span>
<a name="l00025"></a>00025 <span class="comment">//</span>
<a name="l00026"></a>00026 <span class="comment">// getopt implementation for WIN32 platforms.</span>
<a name="l00027"></a>00027 <span class="comment">//</span>
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="comment">/*</span>
<a name="l00030"></a>00030 <span class="comment"> $Log: getopt.cc,v $</span>
<a name="l00031"></a>00031 <span class="comment"> Revision 1.4 2004/08/04 08:13:44 alextingle</span>
<a name="l00032"></a>00032 <span class="comment"> Unix daemon & Windows service now both working. Accessed through interface class Daemon (in daemon.h).</span>
<a name="l00033"></a>00033 <span class="comment"></span>
<a name="l00034"></a>00034 <span class="comment"> Revision 1.3 2004/07/15 14:34:31 alextingle</span>
<a name="l00035"></a>00035 <span class="comment"> Global variables are now declared extern "C".</span>
<a name="l00036"></a>00036 <span class="comment"></span>
<a name="l00037"></a>00037 <span class="comment"> Revision 1.2 2004/02/22 00:37:35 alextingle</span>
<a name="l00038"></a>00038 <span class="comment"> Now does nothing if it isn't needed. Fixes link errors</span>
<a name="l00039"></a>00039 <span class="comment"></span>
<a name="l00040"></a>00040 <span class="comment"> Revision 1.1 2003/12/21 16:19:49 alextingle</span>
<a name="l00041"></a>00041 <span class="comment"> Moved into 'src' directory as part of the change to POA implementation.</span>
<a name="l00042"></a>00042 <span class="comment"></span>
<a name="l00043"></a>00043 <span class="comment"> Revision 1.2 2003/11/03 22:46:54 alextingle</span>
<a name="l00044"></a>00044 <span class="comment"> This implementation of getopt() seems to be needed on AIX as well as</span>
<a name="l00045"></a>00045 <span class="comment"> windows. It therefore needs to be able to compile on Unix. Changed</span>
<a name="l00046"></a>00046 <span class="comment"> _tzset() to tzset() in order to achieve this.</span>
<a name="l00047"></a>00047 <span class="comment"></span>
<a name="l00048"></a>00048 <span class="comment"> Revision 1.1.1.1 2002/09/25 19:00:35 shamus13</span>
<a name="l00049"></a>00049 <span class="comment"> Import of OmniEvents source tree from release 2.1.1</span>
<a name="l00050"></a>00050 <span class="comment"></span>
<a name="l00051"></a>00051 <span class="comment"> Revision 1.3 1999/11/01 16:59:38 naderp</span>
<a name="l00052"></a>00052 <span class="comment"> *** empty log message ***</span>
<a name="l00053"></a>00053 <span class="comment"></span>
<a name="l00054"></a>00054 <span class="comment">Revision 1.2 99/04/23 12:11:18 12:11:18 naderp (Paul Nader)</span>
<a name="l00055"></a>00055 <span class="comment">*** empty log message ***</span>
<a name="l00056"></a>00056 <span class="comment"></span>
<a name="l00057"></a>00057 <span class="comment">Revision 1.1 99/04/23 09:33:35 09:33:35 naderp (Paul Nader)</span>
<a name="l00058"></a>00058 <span class="comment">Initial revision</span>
<a name="l00059"></a>00059 <span class="comment">*/</span>
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="preprocessor">#ifdef HAVE_CONFIG_H</span>
<a name="l00062"></a>00062 <span class="preprocessor"></span><span class="preprocessor"># include "<a class="code" href="a00083.html">config.h</a>"</span>
<a name="l00063"></a>00063 <span class="preprocessor">#endif</span>
<a name="l00064"></a>00064 <span class="preprocessor"></span>
<a name="l00065"></a>00065 <span class="preprocessor">#ifdef HAVE_GETOPT</span>
<a name="l00066"></a>00066 <span class="preprocessor"></span><span class="keywordtype">void</span> omniEventsDummyGetopt(){}
<a name="l00067"></a>00067 <span class="preprocessor">#else</span>
<a name="l00068"></a>00068 <span class="preprocessor"></span>
<a name="l00069"></a>00069 <span class="preprocessor">#include "<a class="code" href="a00105.html">getopt.h</a>"</span>
<a name="l00070"></a>00070 <span class="preprocessor">#include <errno.h></span>
<a name="l00071"></a>00071 <span class="preprocessor">#include <stdio.h></span>
<a name="l00072"></a>00072 <span class="preprocessor">#include <string.h></span>
<a name="l00073"></a>00073
<a name="l00074"></a><a class="code" href="a00104.html#a0">00074</a> <span class="keyword">static</span> <span class="keywordtype">char</span>* <a class="code" href="a00104.html#a0">letP</a> =NULL; <span class="comment">// Speichert den Ort des Zeichens der</span>
<a name="l00075"></a>00075 <span class="comment">// naechsten Option</span>
<a name="l00076"></a><a class="code" href="a00104.html#a1">00076</a> <span class="keyword">static</span> <span class="keywordtype">char</span> <a class="code" href="a00104.html#a1">SW</a> =<span class="charliteral">'-'</span>; <span class="comment">// DOS-Schalter, entweder '-' oder '/'</span>
<a name="l00077"></a>00077
<a name="l00078"></a>00078 <span class="comment">// -------------------------------------------------------------- exports ----</span>
<a name="l00079"></a>00079
<a name="l00080"></a>00080 <span class="keyword">extern</span> <span class="stringliteral">"C"</span>
<a name="l00081"></a>00081 {
<a name="l00082"></a><a class="code" href="a00105.html#a0">00082</a> <span class="keywordtype">int</span> <a class="code" href="a00104.html#a2">optind</a> = 1; <span class="comment">// Index: welches Argument ist das naechste</span>
<a name="l00083"></a><a class="code" href="a00105.html#a1">00083</a> <span class="keywordtype">char</span>* <a class="code" href="a00104.html#a3">optarg</a>; <span class="comment">// Zeiger auf das Argument der akt. Option</span>
<a name="l00084"></a><a class="code" href="a00105.html#a2">00084</a> <span class="keywordtype">int</span> <a class="code" href="a00104.html#a4">opterr</a> = 1; <span class="comment">// erlaubt Fehlermeldungen</span>
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086
<a name="l00087"></a>00087 <span class="comment">// ===========================================================================</span>
<a name="l00088"></a><a class="code" href="a00105.html#a3">00088</a> <span class="keywordtype">int</span> <a class="code" href="a00104.html#a5">getopt</a>(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> *argv[], <span class="keyword">const</span> <span class="keywordtype">char</span> *optionS)
<a name="l00089"></a>00089 {
<a name="l00090"></a>00090 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> ch;
<a name="l00091"></a>00091 <span class="keywordtype">char</span> *optP;
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <span class="keywordflow">if</span>(argc><a class="code" href="a00104.html#a2">optind</a>)
<a name="l00094"></a>00094 {
<a name="l00095"></a>00095 <span class="keywordflow">if</span>(<a class="code" href="a00104.html#a0">letP</a>==NULL)
<a name="l00096"></a>00096 {
<a name="l00097"></a>00097 <span class="comment">// Initialize letP</span>
<a name="l00098"></a>00098 <span class="keywordflow">if</span>( (<a class="code" href="a00104.html#a0">letP</a>=argv[<a class="code" href="a00104.html#a2">optind</a>])==NULL || *(<a class="code" href="a00104.html#a0">letP</a>++)!=<a class="code" href="a00104.html#a1">SW</a> )
<a name="l00099"></a>00099 <span class="keywordflow">goto</span> gopEOF;
<a name="l00100"></a>00100 <span class="keywordflow">if</span>(*<a class="code" href="a00104.html#a0">letP</a> == <a class="code" href="a00104.html#a1">SW</a>)
<a name="l00101"></a>00101 {
<a name="l00102"></a>00102 <span class="comment">// "--" is end of options.</span>
<a name="l00103"></a>00103 <a class="code" href="a00104.html#a2">optind</a>++;
<a name="l00104"></a>00104 <span class="keywordflow">goto</span> gopEOF;
<a name="l00105"></a>00105 }
<a name="l00106"></a>00106 }
<a name="l00107"></a>00107
<a name="l00108"></a>00108 <span class="keywordflow">if</span>((ch=*(<a class="code" href="a00104.html#a0">letP</a>++))== <span class="charliteral">'\0'</span>)
<a name="l00109"></a>00109 {
<a name="l00110"></a>00110 <span class="comment">// "-" is end of options.</span>
<a name="l00111"></a>00111 <a class="code" href="a00104.html#a2">optind</a>++;
<a name="l00112"></a>00112 <span class="keywordflow">goto</span> gopEOF;
<a name="l00113"></a>00113 }
<a name="l00114"></a>00114 <span class="keywordflow">if</span>(<span class="charliteral">':'</span>==ch || (optP=(<span class="keywordtype">char</span>*)strchr(optionS,ch)) == NULL)
<a name="l00115"></a>00115 {
<a name="l00116"></a>00116 <span class="keywordflow">goto</span> gopError;
<a name="l00117"></a>00117 }
<a name="l00118"></a>00118 <span class="comment">// 'ch' is a valid option</span>
<a name="l00119"></a>00119 <span class="comment">// 'optP' points to the optoin char in optionS</span>
<a name="l00120"></a>00120 <span class="keywordflow">if</span>(<span class="charliteral">':'</span>==*(++optP))
<a name="l00121"></a>00121 {
<a name="l00122"></a>00122 <span class="comment">// Option needs a parameter.</span>
<a name="l00123"></a>00123 <a class="code" href="a00104.html#a2">optind</a>++;
<a name="l00124"></a>00124 <span class="keywordflow">if</span>(<span class="charliteral">'\0'</span>==*<a class="code" href="a00104.html#a0">letP</a>)
<a name="l00125"></a>00125 {
<a name="l00126"></a>00126 <span class="comment">// parameter is in next argument</span>
<a name="l00127"></a>00127 <span class="keywordflow">if</span>(argc <= <a class="code" href="a00104.html#a2">optind</a>)
<a name="l00128"></a>00128 <span class="keywordflow">goto</span> gopError;
<a name="l00129"></a>00129 <a class="code" href="a00104.html#a0">letP</a> = argv[<a class="code" href="a00104.html#a2">optind</a>++];
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131 <a class="code" href="a00104.html#a3">optarg</a> = <a class="code" href="a00104.html#a0">letP</a>;
<a name="l00132"></a>00132 <a class="code" href="a00104.html#a0">letP</a> = NULL;
<a name="l00133"></a>00133 }
<a name="l00134"></a>00134 <span class="keywordflow">else</span>
<a name="l00135"></a>00135 {
<a name="l00136"></a>00136 <span class="comment">// Option needs no parameter.</span>
<a name="l00137"></a>00137 <span class="keywordflow">if</span>(<span class="charliteral">'\0'</span>==*<a class="code" href="a00104.html#a0">letP</a>)
<a name="l00138"></a>00138 {
<a name="l00139"></a>00139 <span class="comment">// Move on to next argument.</span>
<a name="l00140"></a>00140 <a class="code" href="a00104.html#a2">optind</a>++;
<a name="l00141"></a>00141 <a class="code" href="a00104.html#a0">letP</a> = NULL;
<a name="l00142"></a>00142 }
<a name="l00143"></a>00143 <a class="code" href="a00104.html#a3">optarg</a> = NULL;
<a name="l00144"></a>00144 }
<a name="l00145"></a>00145 <span class="keywordflow">return</span> ch;
<a name="l00146"></a>00146 }
<a name="l00147"></a>00147 gopEOF:
<a name="l00148"></a>00148 <a class="code" href="a00104.html#a3">optarg</a>=<a class="code" href="a00104.html#a0">letP</a>=NULL;
<a name="l00149"></a>00149 <span class="keywordflow">return</span> EOF;
<a name="l00150"></a>00150
<a name="l00151"></a>00151 gopError:
<a name="l00152"></a>00152 <a class="code" href="a00104.html#a3">optarg</a> = NULL;
<a name="l00153"></a>00153 errno = EINVAL;
<a name="l00154"></a>00154 <span class="keywordflow">if</span>(<a class="code" href="a00104.html#a4">opterr</a>)
<a name="l00155"></a>00155 perror (<span class="stringliteral">"error in command line"</span>);
<a name="l00156"></a>00156 <span class="keywordflow">return</span> (<span class="charliteral">'?'</span>);
<a name="l00157"></a>00157 }
<a name="l00158"></a>00158 <span class="comment">// ===========================================================================</span>
<a name="l00159"></a>00159 <span class="comment">// Ende von getopt ()</span>
<a name="l00160"></a>00160 <span class="comment">// ===========================================================================</span>
<a name="l00161"></a>00161
<a name="l00162"></a>00162 <span class="preprocessor">#endif // HAVE_GETOPT</span>
<a name="l00163"></a>00163 <span class="preprocessor"></span>
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