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<h1>file/src/file.c</h1><a href="file_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * Copyright (c) Ian F. Darwin 1986-1995.</span>
<a name="l00003"></a>00003 <span class="comment"> * Software written by Ian F. Darwin and others;</span>
<a name="l00004"></a>00004 <span class="comment"> * maintained 1995-present by Christos Zoulas and others.</span>
<a name="l00005"></a>00005 <span class="comment"> * </span>
<a name="l00006"></a>00006 <span class="comment"> * Redistribution and use in source and binary forms, with or without</span>
<a name="l00007"></a>00007 <span class="comment"> * modification, are permitted provided that the following conditions</span>
<a name="l00008"></a>00008 <span class="comment"> * are met:</span>
<a name="l00009"></a>00009 <span class="comment"> * 1. Redistributions of source code must retain the above copyright</span>
<a name="l00010"></a>00010 <span class="comment"> * notice immediately at the beginning of the file, without modification,</span>
<a name="l00011"></a>00011 <span class="comment"> * this list of conditions, and the following disclaimer.</span>
<a name="l00012"></a>00012 <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</span>
<a name="l00013"></a>00013 <span class="comment"> * notice, this list of conditions and the following disclaimer in the</span>
<a name="l00014"></a>00014 <span class="comment"> * documentation and/or other materials provided with the distribution.</span>
<a name="l00015"></a>00015 <span class="comment"> * </span>
<a name="l00016"></a>00016 <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND</span>
<a name="l00017"></a>00017 <span class="comment"> * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE</span>
<a name="l00018"></a>00018 <span class="comment"> * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE</span>
<a name="l00019"></a>00019 <span class="comment"> * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR</span>
<a name="l00020"></a>00020 <span class="comment"> * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL</span>
<a name="l00021"></a>00021 <span class="comment"> * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS</span>
<a name="l00022"></a>00022 <span class="comment"> * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)</span>
<a name="l00023"></a>00023 <span class="comment"> * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span>
<a name="l00024"></a>00024 <span class="comment"> * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY</span>
<a name="l00025"></a>00025 <span class="comment"> * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF</span>
<a name="l00026"></a>00026 <span class="comment"> * SUCH DAMAGE.</span>
<a name="l00027"></a>00027 <span class="comment"> */</span>
<a name="l00028"></a>00028 <span class="comment">/*</span>
<a name="l00029"></a>00029 <span class="comment"> * file - find type of a file or files - main program.</span>
<a name="l00030"></a>00030 <span class="comment"> */</span>
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="preprocessor">#include "<a class="code" href="file_8h.html">file.h</a>"</span>
<a name="l00033"></a>00033 <span class="preprocessor">#include "magic.h"</span>
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="preprocessor">#include <stdio.h></span>
<a name="l00036"></a>00036 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00037"></a>00037 <span class="preprocessor">#include <unistd.h></span>
<a name="l00038"></a>00038 <span class="preprocessor">#include <string.h></span>
<a name="l00039"></a>00039 <span class="preprocessor">#include <sys/types.h></span>
<a name="l00040"></a>00040 <span class="preprocessor">#include <sys/param.h></span> <span class="comment">/* for MAXPATHLEN */</span>
<a name="l00041"></a>00041 <span class="preprocessor">#include <sys/stat.h></span>
<a name="l00042"></a>00042 <span class="preprocessor">#include <fcntl.h></span> <span class="comment">/* for open() */</span>
<a name="l00043"></a>00043 <span class="preprocessor">#ifdef RESTORE_TIME</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span><span class="preprocessor"># if (__COHERENT__ >= 0x420)</span>
<a name="l00045"></a>00045 <span class="preprocessor"></span><span class="preprocessor"># include <sys/utime.h></span>
<a name="l00046"></a>00046 <span class="preprocessor"># else</span>
<a name="l00047"></a>00047 <span class="preprocessor"></span><span class="preprocessor"># ifdef USE_UTIMES</span>
<a name="l00048"></a>00048 <span class="preprocessor"></span><span class="preprocessor"># include <sys/time.h></span>
<a name="l00049"></a>00049 <span class="preprocessor"># else</span>
<a name="l00050"></a>00050 <span class="preprocessor"></span><span class="preprocessor"># include <utime.h></span>
<a name="l00051"></a>00051 <span class="preprocessor"># endif</span>
<a name="l00052"></a>00052 <span class="preprocessor"></span><span class="preprocessor"># endif</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00054"></a>00054 <span class="preprocessor"></span><span class="preprocessor">#ifdef HAVE_UNISTD_H</span>
<a name="l00055"></a>00055 <span class="preprocessor"></span><span class="preprocessor">#include <unistd.h></span> <span class="comment">/* for read() */</span>
<a name="l00056"></a>00056 <span class="preprocessor">#endif</span>
<a name="l00057"></a>00057 <span class="preprocessor"></span><span class="preprocessor">#ifdef HAVE_LOCALE_H</span>
<a name="l00058"></a>00058 <span class="preprocessor"></span><span class="preprocessor">#include <locale.h></span>
<a name="l00059"></a>00059 <span class="preprocessor">#endif</span>
<a name="l00060"></a>00060 <span class="preprocessor"></span><span class="preprocessor">#ifdef HAVE_WCHAR_H</span>
<a name="l00061"></a>00061 <span class="preprocessor"></span><span class="preprocessor">#include <wchar.h></span>
<a name="l00062"></a>00062 <span class="preprocessor">#endif</span>
<a name="l00063"></a>00063 <span class="preprocessor"></span>
<a name="l00064"></a>00064 <span class="preprocessor">#ifdef HAVE_GETOPT_H</span>
<a name="l00065"></a>00065 <span class="preprocessor"></span><span class="preprocessor">#include <getopt.h></span> <span class="comment">/* for long options (is this portable?)*/</span>
<a name="l00066"></a>00066 <span class="preprocessor">#else</span>
<a name="l00067"></a>00067 <span class="preprocessor"></span><span class="preprocessor">#undef HAVE_GETOPT_LONG</span>
<a name="l00068"></a>00068 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00069"></a>00069 <span class="preprocessor"></span>
<a name="l00070"></a>00070 <span class="preprocessor">#include <netinet/in.h></span> <span class="comment">/* for byte swapping */</span>
<a name="l00071"></a>00071
<a name="l00072"></a>00072 <span class="preprocessor">#include "patchlevel.h"</span>
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="preprocessor">#ifndef lint</span>
<a name="l00075"></a><a class="code" href="file_8c.html#d3e2f9b6d2324a17d1d4a526b01dbf40">00075</a> <span class="preprocessor"></span><a class="code" href="system_8h.html#b757e9ff04be9e1b95de08c5536ac334">FILE_RCSID</a>(<span class="stringliteral">"@(#)$Id: file.c,v 1.96 2005/03/06 05:58:22 christos Exp $"</span>)
<a name="l00076"></a>00076 <span class="preprocessor">#endif </span><span class="comment">/* lint */</span>
<a name="l00077"></a>00077
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="preprocessor">#ifdef S_IFLNK</span>
<a name="l00080"></a>00080 <span class="preprocessor"></span><span class="preprocessor">#define SYMLINKFLAG "L"</span>
<a name="l00081"></a>00081 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00082"></a><a class="code" href="file_8c.html#e8950dbe2b19902f9e99273961804c7d">00082</a> <span class="preprocessor"></span><span class="preprocessor">#define SYMLINKFLAG ""</span>
<a name="l00083"></a>00083 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00084"></a>00084 <span class="preprocessor"></span>
<a name="l00085"></a><a class="code" href="file_8c.html#56fe9bff0a1be75aae2da3e593053e2c">00085</a> <span class="preprocessor"># define USAGE "Usage: %s [-bcik" SYMLINKFLAG "nNsvz] [-f namefile] [-F separator] [-m magicfiles] file...\n %s -C -m magicfiles\n"</span>
<a name="l00086"></a>00086 <span class="preprocessor"></span>
<a name="l00087"></a>00087 <span class="preprocessor">#ifndef MAXPATHLEN</span>
<a name="l00088"></a><a class="code" href="file_8c.html#ddfa831c1473e710d2b71b72fd7fcfa5">00088</a> <span class="preprocessor"></span><span class="preprocessor">#define MAXPATHLEN 512</span>
<a name="l00089"></a>00089 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00090"></a>00090 <span class="preprocessor"></span>
<a name="l00091"></a>00091 <span class="comment">/*@unchecked@*/</span>
<a name="l00092"></a>00092 <span class="keyword">private</span> <span class="keywordtype">int</span> <span class="comment">/* Global command-line options */</span>
<a name="l00093"></a><a class="code" href="file_8c.html#dce5d4067c02a267d8bc0938d5e370c7">00093</a> <a class="code" href="file_8c.html#dce5d4067c02a267d8bc0938d5e370c7">bflag</a> = 0, <span class="comment">/* brief output format */</span>
<a name="l00094"></a><a class="code" href="file_8c.html#a36976892fd6ee8aff26a6e16393cdef">00094</a> <a class="code" href="file_8c.html#a36976892fd6ee8aff26a6e16393cdef">nopad</a> = 0, <span class="comment">/* Don't pad output */</span>
<a name="l00095"></a><a class="code" href="file_8c.html#09aae6f69d47fdf603563b8876de1322">00095</a> <a class="code" href="file_8c.html#09aae6f69d47fdf603563b8876de1322">nobuffer</a> = 0; <span class="comment">/* Do not buffer stdout */</span>
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="comment">/*@unchecked@*/</span> <span class="comment">/*@observer@*/</span> <span class="comment">/*@relnull@*/</span>
<a name="l00098"></a><a class="code" href="file_8c.html#bbed135681c1ea299e7f783c80187808">00098</a> <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="file_8c.html#bbed135681c1ea299e7f783c80187808">magicfile</a> = 0; <span class="comment">/* where the magic is */</span>
<a name="l00099"></a>00099 <span class="comment">/*@unchecked@*/</span> <span class="comment">/*@observer@*/</span>
<a name="l00100"></a><a class="code" href="file_8c.html#357d732330dd1311e3a9c369a05d5950">00100</a> <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="file_8c.html#357d732330dd1311e3a9c369a05d5950">default_magicfile</a> = <a class="code" href="file_8h.html#94630370ae389fb1189282fa0742f310">MAGIC</a>;
<a name="l00101"></a>00101 <span class="comment">/*@unchecked@*/</span> <span class="comment">/*@observer@*/</span>
<a name="l00102"></a><a class="code" href="file_8c.html#f95374946392a9c5b50bbfa9ea6762ed">00102</a> <span class="keyword">private</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="file_8c.html#f95374946392a9c5b50bbfa9ea6762ed">separator</a> = <span class="stringliteral">":"</span>; <span class="comment">/* Default field separator */</span>
<a name="l00103"></a>00103
<a name="l00104"></a>00104 <span class="comment">/*@unchecked@*/</span> <span class="comment">/*@null@*/</span>
<a name="l00105"></a><a class="code" href="file_8c.html#b9e1449fd00c98428516f0b41eddcb10">00105</a> <span class="keyword">private</span> <span class="keywordtype">char</span> *<a class="code" href="file_8c.html#b9e1449fd00c98428516f0b41eddcb10">progname</a>; <span class="comment">/* used throughout */</span>
<a name="l00106"></a>00106
<a name="l00107"></a>00107 <span class="comment">/*@unchecked@*/</span> <span class="comment">/*@only@*/</span> <span class="comment">/*@null@*/</span>
<a name="l00108"></a><a class="code" href="file_8c.html#348c7f2c1c6344ae34e3a88190c60f1c">00108</a> <span class="keyword">private</span> <span class="keyword">struct </span><a class="code" href="structmagic__set.html">magic_set</a> *<a class="code" href="structmagic.html">magic</a>;
<a name="l00109"></a>00109
<a name="l00110"></a>00110 <span class="keyword">private</span> <span class="keywordtype">void</span> <a class="code" href="file_8c.html#954b24af58f8e74d052bc3a13ce80024">unwrap</a>(<span class="keywordtype">char</span> *fn)
<a name="l00111"></a>00111 <span class="comment">/*@globals fileSystem, internalState @*/</span>
<a name="l00112"></a>00112 <span class="comment">/*@modifies fileSystem, internalState @*/</span>;
<a name="l00113"></a>00113 <span class="keyword">private</span> <span class="keywordtype">void</span> <a class="code" href="file_8c.html#d96d407a911fbb914fa8e4cfbf2faf0f">usage</a>(<span class="keywordtype">void</span>)
<a name="l00114"></a>00114 <span class="comment">/*@globals fileSystem @*/</span>
<a name="l00115"></a>00115 <span class="comment">/*@modifies fileSystem @*/</span>;
<a name="l00116"></a>00116 <span class="preprocessor">#ifdef HAVE_GETOPT_LONG</span>
<a name="l00117"></a>00117 <span class="preprocessor"></span><span class="keyword">private</span> <span class="keywordtype">void</span> help(<span class="keywordtype">void</span>)
<a name="l00118"></a>00118 <span class="comment">/*@globals fileSystem @*/</span>
<a name="l00119"></a>00119 <span class="comment">/*@modifies fileSystem @*/</span>;
<a name="l00120"></a>00120 <span class="preprocessor">#endif</span>
<a name="l00121"></a>00121 <span class="preprocessor"></span><span class="preprocessor">#if 0</span>
<a name="l00122"></a>00122 <span class="preprocessor"></span><span class="keyword">private</span> <span class="keywordtype">int</span> byteconv4(<span class="keywordtype">int</span>, <span class="keywordtype">int</span>, <span class="keywordtype">int</span>)
<a name="l00123"></a>00123 <span class="comment">/*@*/</span>;
<a name="l00124"></a>00124 <span class="keyword">private</span> <span class="keywordtype">short</span> byteconv2(<span class="keywordtype">int</span>, <span class="keywordtype">int</span>, <span class="keywordtype">int</span>)
<a name="l00125"></a>00125 <span class="comment">/*@*/</span>;
<a name="l00126"></a>00126 <span class="preprocessor">#endif</span>
<a name="l00127"></a>00127 <span class="preprocessor"></span>
<a name="l00128"></a>00128 <span class="keyword">private</span> <span class="keywordtype">void</span> <a class="code" href="file_8c.html#05141680b0486fea0ca8c11fcb6dc751">process</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *inname, <span class="keywordtype">int</span> wid)
<a name="l00129"></a>00129 <span class="comment">/*@globals magic, fileSystem, internalState @*/</span>
<a name="l00130"></a>00130 <span class="comment">/*@modifies magic, fileSystem, internalState @*/</span>;
<a name="l00131"></a>00131 <span class="keyword">private</span> <span class="keywordtype">void</span> <a class="code" href="file_8c.html#8824643cf79f7daa9315d99cb43e1e76">load</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *m, <span class="keywordtype">int</span> <a class="code" href="structmagic__set.html#7677d8f81949874cf4a626d1d4566fc6">flags</a>)
<a name="l00132"></a>00132 <span class="comment">/*@globals magic, fileSystem, internalState @*/</span>
<a name="l00133"></a>00133 <span class="comment">/*@modifies magic, fileSystem, internalState @*/</span>;
<a name="l00134"></a>00134
<a name="l00135"></a>00135
<a name="l00136"></a>00136 <span class="comment">/*</span>
<a name="l00137"></a>00137 <span class="comment"> * main - parse arguments and handle options</span>
<a name="l00138"></a>00138 <span class="comment"> */</span>
<a name="l00139"></a>00139 <span class="keywordtype">int</span>
<a name="l00140"></a><a class="code" href="file_8c.html#0ddf1224851353fc92bfbff6f499fa97">00140</a> <a class="code" href="rpmqv_8c.html#ef6c40289a6a07b460e1e2fc9568e404">main</a>(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> *<a class="code" href="compress_8c.html#b233d58a2d9af13ae09ea8fd82556856">argv</a>[])
<a name="l00141"></a>00141 <span class="comment">/*@globals bflag, default_magicfile, magic, magicfile,</span>
<a name="l00142"></a>00142 <span class="comment"> nobuffer, nopad, optind, progname, separator,</span>
<a name="l00143"></a>00143 <span class="comment"> fileSystem, internalState @*/</span>
<a name="l00144"></a>00144 <span class="comment">/*@modifies argv, bflag, default_magicfile, magic, magicfile,</span>
<a name="l00145"></a>00145 <span class="comment"> nobuffer, nopad, optind, progname, separator,</span>
<a name="l00146"></a>00146 <span class="comment"> fileSystem, internalState @*/</span>
<a name="l00147"></a>00147 {
<a name="l00148"></a>00148 <span class="keywordtype">int</span> <a class="code" href="structmagic__set.html#e6fc6e1d52c6cbfff083a512dc7258eb">c</a>;
<a name="l00149"></a>00149 <span class="keywordtype">int</span> action = 0, didsomefiles = 0, errflg = 0;
<a name="l00150"></a>00150 <span class="keywordtype">int</span> <a class="code" href="structmagic__set.html#7677d8f81949874cf4a626d1d4566fc6">flags</a> = 0;
<a name="l00151"></a>00151 <span class="keywordtype">char</span> *home, *usermagic;
<a name="l00152"></a>00152 <span class="keyword">struct </span>stat sb;
<a name="l00153"></a>00153 <span class="preprocessor">#define OPTSTRING "bcCdf:F:ikLm:nNprsvz"</span>
<a name="l00154"></a>00154 <span class="preprocessor"></span><span class="preprocessor">#ifdef HAVE_GETOPT_LONG</span>
<a name="l00155"></a>00155 <span class="preprocessor"></span> <span class="keywordtype">int</span> longindex;
<a name="l00156"></a>00156 <span class="comment">/*@observer@*/</span>
<a name="l00157"></a>00157 <span class="comment">/*@-nullassign -readonlytrans@*/</span>
<a name="l00158"></a>00158 <span class="keyword">private</span> <span class="keyword">struct </span>option long_options[] =
<a name="l00159"></a>00159 {
<a name="l00160"></a>00160 {<span class="stringliteral">"version"</span>, 0, 0, <span class="charliteral">'v'</span>},
<a name="l00161"></a>00161 {<span class="stringliteral">"help"</span>, 0, 0, 0},
<a name="l00162"></a>00162 {<span class="stringliteral">"brief"</span>, 0, 0, <span class="charliteral">'b'</span>},
<a name="l00163"></a>00163 {<span class="stringliteral">"checking-printout"</span>, 0, 0, <span class="charliteral">'c'</span>},
<a name="l00164"></a>00164 {<span class="stringliteral">"debug"</span>, 0, 0, <span class="charliteral">'d'</span>},
<a name="l00165"></a>00165 {<span class="stringliteral">"files-from"</span>, 1, 0, <span class="charliteral">'f'</span>},
<a name="l00166"></a>00166 {<span class="stringliteral">"separator"</span>, 1, 0, <span class="charliteral">'F'</span>},
<a name="l00167"></a>00167 {<span class="stringliteral">"mime"</span>, 0, 0, <span class="charliteral">'i'</span>},
<a name="l00168"></a>00168 {<span class="stringliteral">"keep-going"</span>, 0, 0, <span class="charliteral">'k'</span>},
<a name="l00169"></a>00169 <span class="preprocessor">#ifdef S_IFLNK</span>
<a name="l00170"></a>00170 <span class="preprocessor"></span> {<span class="stringliteral">"dereference"</span>, 0, 0, <span class="charliteral">'L'</span>},
<a name="l00171"></a>00171 <span class="preprocessor">#endif</span>
<a name="l00172"></a>00172 <span class="preprocessor"></span> {<span class="stringliteral">"magic-file"</span>, 1, 0, <span class="charliteral">'m'</span>},
<a name="l00173"></a>00173 <span class="preprocessor">#if defined(HAVE_UTIME) || defined(HAVE_UTIMES)</span>
<a name="l00174"></a>00174 <span class="preprocessor"></span> {<span class="stringliteral">"preserve-date"</span>, 0, 0, <span class="charliteral">'p'</span>},
<a name="l00175"></a>00175 <span class="preprocessor">#endif</span>
<a name="l00176"></a>00176 <span class="preprocessor"></span> {<span class="stringliteral">"uncompress"</span>, 0, 0, <span class="charliteral">'z'</span>},
<a name="l00177"></a>00177 {<span class="stringliteral">"raw"</span>, 0, 0, <span class="charliteral">'r'</span>},
<a name="l00178"></a>00178 {<span class="stringliteral">"no-buffer"</span>, 0, 0, <span class="charliteral">'n'</span>},
<a name="l00179"></a>00179 {<span class="stringliteral">"no-pad"</span>, 0, 0, <span class="charliteral">'N'</span>},
<a name="l00180"></a>00180 {<span class="stringliteral">"special-files"</span>, 0, 0, <span class="charliteral">'s'</span>},
<a name="l00181"></a>00181 {<span class="stringliteral">"compile"</span>, 0, 0, <span class="charliteral">'C'</span>},
<a name="l00182"></a>00182 {0, 0, 0, 0},
<a name="l00183"></a>00183 };
<a name="l00184"></a>00184 <span class="comment">/*@=nullassign =readonlytrans@*/</span>
<a name="l00185"></a>00185 <span class="preprocessor">#endif</span>
<a name="l00186"></a>00186 <span class="preprocessor"></span>
<a name="l00187"></a>00187 <span class="preprocessor">#ifdef LC_CTYPE</span>
<a name="l00188"></a>00188 <span class="preprocessor"></span> <a class="code" href="system_8h.html#b5e1d9cb300656a04286db094bedd7ef">setlocale</a>(LC_CTYPE, <span class="stringliteral">""</span>); <span class="comment">/* makes islower etc work for other langs */</span>
<a name="l00189"></a>00189 <span class="preprocessor">#endif</span>
<a name="l00190"></a>00190 <span class="preprocessor"></span>
<a name="l00191"></a>00191 <span class="preprocessor">#ifdef __EMX__</span>
<a name="l00192"></a>00192 <span class="preprocessor"></span> <span class="comment">/* sh-like wildcard expansion! Shouldn't hurt at least ... */</span>
<a name="l00193"></a>00193 _wildcard(&argc, &argv);
<a name="l00194"></a>00194 <span class="preprocessor">#endif</span>
<a name="l00195"></a>00195 <span class="preprocessor"></span>
<a name="l00196"></a>00196 <span class="keywordflow">if</span> ((progname = strrchr(argv[0], <span class="charliteral">'/'</span>)) != NULL)
<a name="l00197"></a>00197 progname++;
<a name="l00198"></a>00198 <span class="keywordflow">else</span>
<a name="l00199"></a>00199 progname = argv[0];
<a name="l00200"></a>00200
<a name="l00201"></a>00201 magicfile = default_magicfile;
<a name="l00202"></a>00202 <span class="keywordflow">if</span> ((usermagic = <a class="code" href="system_8h.html#bc6595dbf6880c71628fecf0dbb23d66">getenv</a>(<span class="stringliteral">"MAGIC"</span>)) != NULL)
<a name="l00203"></a>00203 magicfile = usermagic;
<a name="l00204"></a>00204 <span class="keywordflow">else</span>
<a name="l00205"></a>00205 <span class="keywordflow">if</span> ((home = <a class="code" href="system_8h.html#bc6595dbf6880c71628fecf0dbb23d66">getenv</a>(<span class="stringliteral">"HOME"</span>)) != NULL) {
<a name="l00206"></a>00206 <span class="keywordflow">if</span> ((usermagic = malloc(strlen(home) + 8)) != NULL) {
<a name="l00207"></a>00207 (void)strcpy(usermagic, home);
<a name="l00208"></a>00208 (void)strcat(usermagic, <span class="stringliteral">"/.magic"</span>);
<a name="l00209"></a>00209 <span class="keywordflow">if</span> (stat(usermagic, &sb)<0)
<a name="l00210"></a>00210 free(usermagic);
<a name="l00211"></a>00211 <span class="keywordflow">else</span>
<a name="l00212"></a>00212 magicfile = usermagic;
<a name="l00213"></a>00213 }
<a name="l00214"></a>00214 }
<a name="l00215"></a>00215
<a name="l00216"></a>00216 <span class="comment">/*@-moduncon@*/</span>
<a name="l00217"></a>00217 <span class="preprocessor">#ifndef HAVE_GETOPT_LONG</span>
<a name="l00218"></a>00218 <span class="preprocessor"></span> <span class="keywordflow">while</span> ((c = getopt(argc, argv, <a class="code" href="file_8c.html#ea7f70401d64e0c72b3df91414bdfd78">OPTSTRING</a>)) != -1)
<a name="l00219"></a>00219 <span class="preprocessor">#else</span>
<a name="l00220"></a>00220 <span class="preprocessor"></span> <span class="keywordflow">while</span> ((c = getopt_long(argc, argv, <a class="code" href="file_8c.html#ea7f70401d64e0c72b3df91414bdfd78">OPTSTRING</a>, long_options,
<a name="l00221"></a>00221 &longindex)) != -1)
<a name="l00222"></a>00222 <span class="preprocessor">#endif</span>
<a name="l00223"></a>00223 <span class="preprocessor"></span><span class="comment">/*@=moduncon@*/</span>
<a name="l00224"></a>00224 <span class="keywordflow">switch</span> (c) {
<a name="l00225"></a>00225 <span class="preprocessor">#ifdef HAVE_GETOPT_LONG</span>
<a name="l00226"></a>00226 <span class="preprocessor"></span> <span class="keywordflow">case</span> 0 :
<a name="l00227"></a>00227 <span class="keywordflow">if</span> (longindex == 1)
<a name="l00228"></a>00228 help();
<a name="l00229"></a>00229 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00230"></a>00230 <span class="preprocessor">#endif</span>
<a name="l00231"></a>00231 <span class="preprocessor"></span> <span class="keywordflow">case</span> <span class="charliteral">'b'</span>:
<a name="l00232"></a>00232 ++<a class="code" href="file_8c.html#dce5d4067c02a267d8bc0938d5e370c7">bflag</a>;
<a name="l00233"></a>00233 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00234"></a>00234 <span class="keywordflow">case</span> <span class="charliteral">'c'</span>:
<a name="l00235"></a>00235 action = <a class="code" href="file_8h.html#4cfcd6b1de0e51b20358e6b310744410">FILE_CHECK</a>;
<a name="l00236"></a>00236 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00237"></a>00237 <span class="keywordflow">case</span> <span class="charliteral">'C'</span>:
<a name="l00238"></a>00238 action = <a class="code" href="file_8h.html#a2c340f672a067172e2f79b4f1ddd3c4">FILE_COMPILE</a>;
<a name="l00239"></a>00239 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00240"></a>00240 <span class="keywordflow">case</span> <span class="charliteral">'d'</span>:
<a name="l00241"></a>00241 flags |= MAGIC_DEBUG|MAGIC_CHECK;
<a name="l00242"></a>00242 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00243"></a>00243 <span class="keywordflow">case</span> <span class="charliteral">'f'</span>:
<a name="l00244"></a>00244 <span class="keywordflow">if</span>(action)
<a name="l00245"></a>00245 <a class="code" href="file_8c.html#d96d407a911fbb914fa8e4cfbf2faf0f">usage</a>();
<a name="l00246"></a>00246 <a class="code" href="file_8c.html#8824643cf79f7daa9315d99cb43e1e76">load</a>(magicfile, flags);
<a name="l00247"></a>00247 <a class="code" href="file_8c.html#954b24af58f8e74d052bc3a13ce80024">unwrap</a>(optarg);
<a name="l00248"></a>00248 ++didsomefiles;
<a name="l00249"></a>00249 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00250"></a>00250 <span class="keywordflow">case</span> <span class="charliteral">'F'</span>:
<a name="l00251"></a>00251 separator = optarg;
<a name="l00252"></a>00252 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00253"></a>00253 <span class="keywordflow">case</span> <span class="charliteral">'i'</span>:
<a name="l00254"></a>00254 flags |= MAGIC_MIME;
<a name="l00255"></a>00255 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00256"></a>00256 <span class="keywordflow">case</span> <span class="charliteral">'k'</span>:
<a name="l00257"></a>00257 flags |= MAGIC_CONTINUE;
<a name="l00258"></a>00258 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00259"></a>00259 <span class="keywordflow">case</span> <span class="charliteral">'m'</span>:
<a name="l00260"></a>00260 magicfile = optarg;
<a name="l00261"></a>00261 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00262"></a>00262 <span class="keywordflow">case</span> <span class="charliteral">'n'</span>:
<a name="l00263"></a>00263 ++<a class="code" href="file_8c.html#09aae6f69d47fdf603563b8876de1322">nobuffer</a>;
<a name="l00264"></a>00264 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00265"></a>00265 <span class="keywordflow">case</span> <span class="charliteral">'N'</span>:
<a name="l00266"></a>00266 ++<a class="code" href="file_8c.html#a36976892fd6ee8aff26a6e16393cdef">nopad</a>;
<a name="l00267"></a>00267 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00268"></a>00268 <span class="preprocessor">#if defined(HAVE_UTIME) || defined(HAVE_UTIMES)</span>
<a name="l00269"></a>00269 <span class="preprocessor"></span> <span class="keywordflow">case</span> <span class="charliteral">'p'</span>:
<a name="l00270"></a>00270 flags |= MAGIC_PRESERVE_ATIME;
<a name="l00271"></a>00271 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00272"></a>00272 <span class="preprocessor">#endif</span>
<a name="l00273"></a>00273 <span class="preprocessor"></span> <span class="keywordflow">case</span> <span class="charliteral">'r'</span>:
<a name="l00274"></a>00274 flags |= MAGIC_RAW;
<a name="l00275"></a>00275 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00276"></a>00276 <span class="keywordflow">case</span> <span class="charliteral">'s'</span>:
<a name="l00277"></a>00277 flags |= MAGIC_DEVICES;
<a name="l00278"></a>00278 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00279"></a>00279 <span class="keywordflow">case</span> <span class="charliteral">'v'</span>:
<a name="l00280"></a>00280 (void) fprintf(stdout, <span class="stringliteral">"%s-%d.%.2d\n"</span>, progname,
<a name="l00281"></a>00281 FILE_VERSION_MAJOR, patchlevel);
<a name="l00282"></a>00282 (void) fprintf(stdout, <span class="stringliteral">"magic file from %s\n"</span>,
<a name="l00283"></a>00283 magicfile);
<a name="l00284"></a>00284 <span class="keywordflow">return</span> 1;
<a name="l00285"></a>00285 <span class="keywordflow">case</span> <span class="charliteral">'z'</span>:
<a name="l00286"></a>00286 flags |= MAGIC_COMPRESS;
<a name="l00287"></a>00287 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00288"></a>00288 <span class="preprocessor">#ifdef S_IFLNK</span>
<a name="l00289"></a>00289 <span class="preprocessor"></span> <span class="keywordflow">case</span> <span class="charliteral">'L'</span>:
<a name="l00290"></a>00290 flags |= MAGIC_SYMLINK;
<a name="l00291"></a>00291 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00292"></a>00292 <span class="preprocessor">#endif</span>
<a name="l00293"></a>00293 <span class="preprocessor"></span> <span class="keywordflow">case</span> <span class="charliteral">'?'</span>:
<a name="l00294"></a>00294 <span class="keywordflow">default</span>:
<a name="l00295"></a>00295 errflg++;
<a name="l00296"></a>00296 <span class="comment">/*@switchbreak@*/</span> <span class="keywordflow">break</span>;
<a name="l00297"></a>00297 }
<a name="l00298"></a>00298
<a name="l00299"></a>00299 <span class="keywordflow">if</span> (errflg) {
<a name="l00300"></a>00300 <a class="code" href="file_8c.html#d96d407a911fbb914fa8e4cfbf2faf0f">usage</a>();
<a name="l00301"></a>00301 }
<a name="l00302"></a>00302
<a name="l00303"></a>00303 <span class="keywordflow">switch</span>(action) {
<a name="l00304"></a>00304 <span class="keywordflow">case</span> <a class="code" href="file_8h.html#4cfcd6b1de0e51b20358e6b310744410">FILE_CHECK</a>:
<a name="l00305"></a>00305 <span class="keywordflow">case</span> <a class="code" href="file_8h.html#a2c340f672a067172e2f79b4f1ddd3c4">FILE_COMPILE</a>:
<a name="l00306"></a>00306 <a class="code" href="compress_8c.html#52bfb08821468413d41bc3e3b38dc078">magic</a> = magic_open(flags|MAGIC_CHECK);
<a name="l00307"></a>00307 <span class="keywordflow">if</span> (<a class="code" href="compress_8c.html#52bfb08821468413d41bc3e3b38dc078">magic</a> == NULL) {
<a name="l00308"></a>00308 (void)fprintf(stderr, <span class="stringliteral">"%s: %s\n"</span>, progname,
<a name="l00309"></a>00309 <a class="code" href="file_8h.html#b6b553574f85ce7727cf5b9a1b638293">strerror</a>(<a class="code" href="system_8h.html#d65a8842cc674e3ddf69355898c0ecbf">errno</a>));
<a name="l00310"></a>00310 <span class="keywordflow">return</span> 1;
<a name="l00311"></a>00311 }
<a name="l00312"></a>00312 c = action == <a class="code" href="file_8h.html#4cfcd6b1de0e51b20358e6b310744410">FILE_CHECK</a> ? magic_check(<a class="code" href="compress_8c.html#52bfb08821468413d41bc3e3b38dc078">magic</a>, magicfile) :
<a name="l00313"></a>00313 magic_compile(<a class="code" href="compress_8c.html#52bfb08821468413d41bc3e3b38dc078">magic</a>, magicfile);
<a name="l00314"></a>00314 <span class="keywordflow">if</span> (c == -1) {
<a name="l00315"></a>00315 (void)fprintf(stderr, <span class="stringliteral">"%s: %s\n"</span>, progname,
<a name="l00316"></a>00316 magic_error(<a class="code" href="compress_8c.html#52bfb08821468413d41bc3e3b38dc078">magic</a>));
<a name="l00317"></a>00317 <span class="keywordflow">return</span> -1;
<a name="l00318"></a>00318 }
<a name="l00319"></a>00319 <span class="keywordflow">return</span> 0;
<a name="l00320"></a>00320 <span class="keywordflow">default</span>:
<a name="l00321"></a>00321 <a class="code" href="file_8c.html#8824643cf79f7daa9315d99cb43e1e76">load</a>(magicfile, flags);
<a name="l00322"></a>00322 <span class="keywordflow">break</span>;
<a name="l00323"></a>00323 }
<a name="l00324"></a>00324
<a name="l00325"></a>00325 <span class="keywordflow">if</span> (optind == argc) {
<a name="l00326"></a>00326 <span class="keywordflow">if</span> (!didsomefiles) {
<a name="l00327"></a>00327 <a class="code" href="file_8c.html#d96d407a911fbb914fa8e4cfbf2faf0f">usage</a>();
<a name="l00328"></a>00328 }
<a name="l00329"></a>00329 }
<a name="l00330"></a>00330 <span class="keywordflow">else</span> {
<a name="l00331"></a>00331 <span class="keywordtype">int</span> i, wid, nw;
<a name="l00332"></a>00332 <span class="keywordflow">for</span> (wid = 0, i = optind; i < argc; i++) {
<a name="l00333"></a>00333 nw = <a class="code" href="file_8c.html#beade5469bde46ff0e2199188916ccef">file_mbswidth</a>(argv[i]);
<a name="l00334"></a>00334 <span class="keywordflow">if</span> (nw > wid)
<a name="l00335"></a>00335 wid = nw;
<a name="l00336"></a>00336 }
<a name="l00337"></a>00337 <span class="keywordflow">for</span> (; optind < argc; optind++)
<a name="l00338"></a>00338 <a class="code" href="file_8c.html#05141680b0486fea0ca8c11fcb6dc751">process</a>(argv[optind], wid);
<a name="l00339"></a>00339 }
<a name="l00340"></a>00340
<a name="l00341"></a>00341 magic_close(<a class="code" href="compress_8c.html#52bfb08821468413d41bc3e3b38dc078">magic</a>);
<a name="l00342"></a>00342 magic = NULL;
<a name="l00343"></a>00343 <span class="keywordflow">return</span> 0;
<a name="l00344"></a>00344 }
<a name="l00345"></a>00345
<a name="l00346"></a>00346
<a name="l00347"></a>00347 <span class="keyword">private</span> <span class="keywordtype">void</span>
<a name="l00348"></a><a class="code" href="file_8c.html#8824643cf79f7daa9315d99cb43e1e76">00348</a> <a class="code" href="file_8c.html#8824643cf79f7daa9315d99cb43e1e76">load</a>(<span class="comment">/*@unused@*/</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *m, <span class="keywordtype">int</span> flags)
<a name="l00349"></a>00349 {
<a name="l00350"></a>00350 <span class="keywordflow">if</span> (<a class="code" href="compress_8c.html#52bfb08821468413d41bc3e3b38dc078">magic</a>)
<a name="l00351"></a>00351 <span class="keywordflow">return</span>;
<a name="l00352"></a>00352 <a class="code" href="compress_8c.html#52bfb08821468413d41bc3e3b38dc078">magic</a> = magic_open(flags);
<a name="l00353"></a>00353 <span class="keywordflow">if</span> (<a class="code" href="compress_8c.html#52bfb08821468413d41bc3e3b38dc078">magic</a> == NULL) {
<a name="l00354"></a>00354 (void)fprintf(stderr, <span class="stringliteral">"%s: %s\n"</span>, progname, <a class="code" href="file_8h.html#b6b553574f85ce7727cf5b9a1b638293">strerror</a>(<a class="code" href="system_8h.html#d65a8842cc674e3ddf69355898c0ecbf">errno</a>));
<a name="l00355"></a>00355 exit(<a class="code" href="system_8h.html#73efe787c131b385070f25d18b7c9aa4">EXIT_FAILURE</a>);
<a name="l00356"></a>00356 }
<a name="l00357"></a>00357 <span class="keywordflow">if</span> (magic_load(<a class="code" href="compress_8c.html#52bfb08821468413d41bc3e3b38dc078">magic</a>, magicfile) == -1) {
<a name="l00358"></a>00358 (void)fprintf(stderr, <span class="stringliteral">"%s: %s\n"</span>,
<a name="l00359"></a>00359 progname, magic_error(<a class="code" href="compress_8c.html#52bfb08821468413d41bc3e3b38dc078">magic</a>));
<a name="l00360"></a>00360 exit(<a class="code" href="system_8h.html#73efe787c131b385070f25d18b7c9aa4">EXIT_FAILURE</a>);
<a name="l00361"></a>00361 }
<a name="l00362"></a>00362 }
<a name="l00363"></a>00363
<a name="l00364"></a>00364 <span class="comment">/*</span>
<a name="l00365"></a>00365 <span class="comment"> * unwrap -- read a file of filenames, do each one.</span>
<a name="l00366"></a>00366 <span class="comment"> */</span>
<a name="l00367"></a>00367 <span class="keyword">private</span> <span class="keywordtype">void</span>
<a name="l00368"></a><a class="code" href="file_8c.html#954b24af58f8e74d052bc3a13ce80024">00368</a> <a class="code" href="file_8c.html#954b24af58f8e74d052bc3a13ce80024">unwrap</a>(<span class="keywordtype">char</span> *fn)
<a name="l00369"></a>00369 {
<a name="l00370"></a>00370 <span class="keywordtype">char</span> buf[<a class="code" href="apprentice_8c.html#ddfa831c1473e710d2b71b72fd7fcfa5">MAXPATHLEN</a>];
<a name="l00371"></a>00371 FILE *f;
<a name="l00372"></a>00372 <span class="keywordtype">int</span> wid = 0, cwid;
<a name="l00373"></a>00373
<a name="l00374"></a>00374 <span class="keywordflow">if</span> (strcmp(<span class="stringliteral">"-"</span>, fn) == 0) {
<a name="l00375"></a>00375 f = stdin;
<a name="l00376"></a>00376 wid = 1;
<a name="l00377"></a>00377 } <span class="keywordflow">else</span> {
<a name="l00378"></a>00378 <span class="keywordflow">if</span> ((f = fopen(fn, <span class="stringliteral">"r"</span>)) == NULL) {
<a name="l00379"></a>00379 (void)fprintf(stderr, <span class="stringliteral">"%s: Cannot open `%s' (%s).\n"</span>,
<a name="l00380"></a>00380 progname, fn, <a class="code" href="file_8h.html#b6b553574f85ce7727cf5b9a1b638293">strerror</a>(<a class="code" href="system_8h.html#d65a8842cc674e3ddf69355898c0ecbf">errno</a>));
<a name="l00381"></a>00381 exit(<a class="code" href="system_8h.html#73efe787c131b385070f25d18b7c9aa4">EXIT_FAILURE</a>);
<a name="l00382"></a>00382 }
<a name="l00383"></a>00383
<a name="l00384"></a>00384 <span class="keywordflow">while</span> (fgets(buf, <a class="code" href="apprentice_8c.html#ddfa831c1473e710d2b71b72fd7fcfa5">MAXPATHLEN</a>, f) != NULL) {
<a name="l00385"></a>00385 cwid = <a class="code" href="file_8c.html#beade5469bde46ff0e2199188916ccef">file_mbswidth</a>(buf) - 1;
<a name="l00386"></a>00386 <span class="keywordflow">if</span> (cwid > wid)
<a name="l00387"></a>00387 wid = cwid;
<a name="l00388"></a>00388 }
<a name="l00389"></a>00389
<a name="l00390"></a>00390 rewind(f);
<a name="l00391"></a>00391 }
<a name="l00392"></a>00392
<a name="l00393"></a>00393 <span class="keywordflow">while</span> (fgets(buf, <a class="code" href="apprentice_8c.html#ddfa831c1473e710d2b71b72fd7fcfa5">MAXPATHLEN</a>, f) != NULL) {
<a name="l00394"></a>00394 <span class="comment">// cut off CR, we _need_ bytes here, not characters</span>
<a name="l00395"></a>00395 buf[strlen(buf)-1] = <span class="charliteral">'\0'</span>;
<a name="l00396"></a>00396 <a class="code" href="file_8c.html#05141680b0486fea0ca8c11fcb6dc751">process</a>(buf, wid);
<a name="l00397"></a>00397 <span class="keywordflow">if</span>(<a class="code" href="file_8c.html#09aae6f69d47fdf603563b8876de1322">nobuffer</a>)
<a name="l00398"></a>00398 (void) fflush(stdout);
<a name="l00399"></a>00399 }
<a name="l00400"></a>00400
<a name="l00401"></a>00401 (void) fclose(f);
<a name="l00402"></a>00402 }
<a name="l00403"></a>00403
<a name="l00404"></a>00404 <span class="keyword">private</span> <span class="keywordtype">void</span>
<a name="l00405"></a><a class="code" href="file_8c.html#05141680b0486fea0ca8c11fcb6dc751">00405</a> <a class="code" href="file_8c.html#05141680b0486fea0ca8c11fcb6dc751">process</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *inname, <span class="keywordtype">int</span> wid)
<a name="l00406"></a>00406 {
<a name="l00407"></a>00407 <span class="keyword">const</span> <span class="keywordtype">char</span> *type;
<a name="l00408"></a>00408 <span class="keywordtype">int</span> std_in = strcmp(inname, <span class="stringliteral">"-"</span>) == 0;
<a name="l00409"></a>00409
<a name="l00410"></a>00410 <span class="keywordflow">if</span> (wid > 0 && !<a class="code" href="file_8c.html#dce5d4067c02a267d8bc0938d5e370c7">bflag</a>)
<a name="l00411"></a>00411 (void) printf(<span class="stringliteral">"%s%s%*s "</span>, std_in ? <span class="stringliteral">"/dev/stdin"</span> : inname,
<a name="l00412"></a>00412 separator, (<span class="keywordtype">int</span>) (<a class="code" href="file_8c.html#a36976892fd6ee8aff26a6e16393cdef">nopad</a> ? 0 : (wid - <a class="code" href="file_8c.html#beade5469bde46ff0e2199188916ccef">file_mbswidth</a>(inname))), <span class="stringliteral">""</span>);
<a name="l00413"></a>00413
<a name="l00414"></a>00414 type = magic_file(<a class="code" href="compress_8c.html#52bfb08821468413d41bc3e3b38dc078">magic</a>, std_in ? NULL : inname);
<a name="l00415"></a>00415 <span class="keywordflow">if</span> (type == NULL)
<a name="l00416"></a>00416 printf(<span class="stringliteral">"ERROR: %s\n"</span>, magic_error(<a class="code" href="compress_8c.html#52bfb08821468413d41bc3e3b38dc078">magic</a>));
<a name="l00417"></a>00417 <span class="keywordflow">else</span>
<a name="l00418"></a>00418 printf(<span class="stringliteral">"%s\n"</span>, type);
<a name="l00419"></a>00419 }
<a name="l00420"></a>00420
<a name="l00421"></a>00421
<a name="l00422"></a>00422 <span class="preprocessor">#if 0</span>
<a name="l00423"></a>00423 <span class="preprocessor"></span><span class="comment">/*</span>
<a name="l00424"></a>00424 <span class="comment"> * byteconv4</span>
<a name="l00425"></a>00425 <span class="comment"> * Input:</span>
<a name="l00426"></a>00426 <span class="comment"> * from 4 byte quantity to convert</span>
<a name="l00427"></a>00427 <span class="comment"> * same whether to perform byte swapping</span>
<a name="l00428"></a>00428 <span class="comment"> * big_endian whether we are a big endian host</span>
<a name="l00429"></a>00429 <span class="comment"> */</span>
<a name="l00430"></a>00430 <span class="keyword">private</span> <span class="keywordtype">int</span>
<a name="l00431"></a>00431 byteconv4(<span class="keywordtype">int</span> from, <span class="keywordtype">int</span> same, <span class="keywordtype">int</span> big_endian)
<a name="l00432"></a>00432 {
<a name="l00433"></a>00433 <span class="keywordflow">if</span> (same)
<a name="l00434"></a>00434 <span class="keywordflow">return</span> from;
<a name="l00435"></a>00435 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (big_endian) { <span class="comment">/* lsb -> msb conversion on msb */</span>
<a name="l00436"></a>00436 <span class="keyword">union </span>{
<a name="l00437"></a>00437 <span class="keywordtype">int</span> i;
<a name="l00438"></a>00438 <span class="keywordtype">char</span> c[4];
<a name="l00439"></a>00439 } retval, tmpval;
<a name="l00440"></a>00440
<a name="l00441"></a>00441 tmpval.i = from;
<a name="l00442"></a>00442 retval.c[0] = tmpval.c[3];
<a name="l00443"></a>00443 retval.c[1] = tmpval.c[2];
<a name="l00444"></a>00444 retval.c[2] = tmpval.c[1];
<a name="l00445"></a>00445 retval.c[3] = tmpval.c[0];
<a name="l00446"></a>00446
<a name="l00447"></a>00447 <span class="keywordflow">return</span> retval.i;
<a name="l00448"></a>00448 }
<a name="l00449"></a>00449 <span class="keywordflow">else</span>
<a name="l00450"></a>00450 <span class="keywordflow">return</span> ntohl(from); <span class="comment">/* msb -> lsb conversion on lsb */</span>
<a name="l00451"></a>00451 }
<a name="l00452"></a>00452
<a name="l00453"></a>00453 <span class="comment">/*</span>
<a name="l00454"></a>00454 <span class="comment"> * byteconv2</span>
<a name="l00455"></a>00455 <span class="comment"> * Same as byteconv4, but for shorts</span>
<a name="l00456"></a>00456 <span class="comment"> */</span>
<a name="l00457"></a>00457 <span class="keyword">private</span> <span class="keywordtype">short</span>
<a name="l00458"></a>00458 byteconv2(<span class="keywordtype">int</span> from, <span class="keywordtype">int</span> same, <span class="keywordtype">int</span> big_endian)
<a name="l00459"></a>00459 {
<a name="l00460"></a>00460 <span class="keywordflow">if</span> (same)
<a name="l00461"></a>00461 <span class="keywordflow">return</span> from;
<a name="l00462"></a>00462 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (big_endian) { <span class="comment">/* lsb -> msb conversion on msb */</span>
<a name="l00463"></a>00463 <span class="keyword">union </span>{
<a name="l00464"></a>00464 <span class="keywordtype">short</span> s;
<a name="l00465"></a>00465 <span class="keywordtype">char</span> c[2];
<a name="l00466"></a>00466 } retval, tmpval;
<a name="l00467"></a>00467
<a name="l00468"></a>00468 tmpval.s = (short) from;
<a name="l00469"></a>00469 retval.c[0] = tmpval.c[1];
<a name="l00470"></a>00470 retval.c[1] = tmpval.c[0];
<a name="l00471"></a>00471
<a name="l00472"></a>00472 <span class="keywordflow">return</span> retval.s;
<a name="l00473"></a>00473 }
<a name="l00474"></a>00474 <span class="keywordflow">else</span>
<a name="l00475"></a>00475 <span class="keywordflow">return</span> ntohs(from); <span class="comment">/* msb -> lsb conversion on lsb */</span>
<a name="l00476"></a>00476 }
<a name="l00477"></a>00477 <span class="preprocessor">#endif</span>
<a name="l00478"></a>00478 <span class="preprocessor"></span>
<a name="l00479"></a>00479 size_t
<a name="l00480"></a><a class="code" href="file_8h.html#28959f6c32a78094b186b2831cdc7e91">00480</a> <a class="code" href="file_8c.html#beade5469bde46ff0e2199188916ccef">file_mbswidth</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *s)
<a name="l00481"></a>00481 {
<a name="l00482"></a>00482 <span class="preprocessor">#if defined(HAVE_WCHAR_H) && defined(HAVE_MBRTOWC) && defined(HAVE_WCWIDTH)</span>
<a name="l00483"></a>00483 <span class="preprocessor"></span> size_t bytesconsumed, old_n, n, width = 0;
<a name="l00484"></a>00484 mbstate_t state;
<a name="l00485"></a>00485 <span class="keywordtype">wchar_t</span> nextchar;
<a name="l00486"></a>00486 (void)memset(&state, 0, <span class="keyword">sizeof</span>(mbstate_t));
<a name="l00487"></a>00487 old_n = n = strlen(s);
<a name="l00488"></a>00488
<a name="l00489"></a>00489 <span class="keywordflow">while</span> (n > 0) {
<a name="l00490"></a>00490 bytesconsumed = mbrtowc(&nextchar, s, n, &state);
<a name="l00491"></a>00491 <span class="keywordflow">if</span> (bytesconsumed == (size_t)(-1) ||
<a name="l00492"></a>00492 bytesconsumed == (size_t)(-2)) {
<a name="l00493"></a>00493 <span class="comment">/* Something went wrong, return something reasonable */</span>
<a name="l00494"></a>00494 <span class="keywordflow">return</span> old_n;
<a name="l00495"></a>00495 }
<a name="l00496"></a>00496 <span class="keywordflow">if</span> (s[0] == <span class="charliteral">'\n'</span>) {
<a name="l00497"></a>00497 <span class="comment">/*</span>
<a name="l00498"></a>00498 <span class="comment"> * do what strlen() would do, so that caller</span>
<a name="l00499"></a>00499 <span class="comment"> * is always right</span>
<a name="l00500"></a>00500 <span class="comment"> */</span>
<a name="l00501"></a>00501 width++;
<a name="l00502"></a>00502 } <span class="keywordflow">else</span>
<a name="l00503"></a>00503 width += wcwidth(nextchar);
<a name="l00504"></a>00504
<a name="l00505"></a>00505 s += bytesconsumed, n -= bytesconsumed;
<a name="l00506"></a>00506 }
<a name="l00507"></a>00507 <span class="keywordflow">return</span> width;
<a name="l00508"></a>00508 <span class="preprocessor">#else</span>
<a name="l00509"></a>00509 <span class="preprocessor"></span> <span class="keywordflow">return</span> strlen(s);
<a name="l00510"></a>00510 <span class="preprocessor">#endif</span>
<a name="l00511"></a>00511 <span class="preprocessor"></span>}
<a name="l00512"></a>00512
<a name="l00513"></a>00513 <span class="keyword">private</span> <span class="keywordtype">void</span>
<a name="l00514"></a><a class="code" href="file_8c.html#d96d407a911fbb914fa8e4cfbf2faf0f">00514</a> <a class="code" href="file_8c.html#d96d407a911fbb914fa8e4cfbf2faf0f">usage</a>(<span class="keywordtype">void</span>)
<a name="l00515"></a>00515 {
<a name="l00516"></a>00516 (void)fprintf(stderr, <a class="code" href="file_8c.html#56fe9bff0a1be75aae2da3e593053e2c">USAGE</a>, progname, progname);
<a name="l00517"></a>00517 <span class="preprocessor">#ifdef HAVE_GETOPT_LONG</span>
<a name="l00518"></a>00518 <span class="preprocessor"></span> (void)fputs(<span class="stringliteral">"Try `file --help' for more information.\n"</span>, stderr);
<a name="l00519"></a>00519 <span class="preprocessor">#endif</span>
<a name="l00520"></a>00520 <span class="preprocessor"></span> exit(<a class="code" href="system_8h.html#73efe787c131b385070f25d18b7c9aa4">EXIT_FAILURE</a>);
<a name="l00521"></a>00521 }
<a name="l00522"></a>00522
<a name="l00523"></a>00523 <span class="preprocessor">#ifdef HAVE_GETOPT_LONG</span>
<a name="l00524"></a>00524 <span class="preprocessor"></span><span class="keyword">private</span> <span class="keywordtype">void</span>
<a name="l00525"></a>00525 help(<span class="keywordtype">void</span>)
<a name="l00526"></a>00526 {
<a name="l00527"></a>00527 puts(
<a name="l00528"></a>00528 <span class="stringliteral">"Usage: file [OPTION]... [FILE]...\n"</span>
<a name="l00529"></a>00529 <span class="stringliteral">"Determine file type of FILEs.\n"</span>
<a name="l00530"></a>00530 <span class="stringliteral">"\n"</span>
<a name="l00531"></a>00531 <span class="stringliteral">" -m, --magic-file LIST use LIST as a colon-separated list of magic\n"</span>
<a name="l00532"></a>00532 <span class="stringliteral">" number files\n"</span>
<a name="l00533"></a>00533 <span class="stringliteral">" -z, --uncompress try to look inside compressed files\n"</span>
<a name="l00534"></a>00534 <span class="stringliteral">" -b, --brief do not prepend filenames to output lines\n"</span>
<a name="l00535"></a>00535 <span class="stringliteral">" -c, --checking-printout print the parsed form of the magic file, use in\n"</span>
<a name="l00536"></a>00536 <span class="stringliteral">" conjunction with -m to debug a new magic file\n"</span>
<a name="l00537"></a>00537 <span class="stringliteral">" before installing it\n"</span>
<a name="l00538"></a>00538 <span class="stringliteral">" -f, --files-from FILE read the filenames to be examined from FILE\n"</span>
<a name="l00539"></a>00539 <span class="stringliteral">" -F, --separator string use string as separator instead of `:'\n"</span>
<a name="l00540"></a>00540 <span class="stringliteral">" -i, --mime output mime type strings\n"</span>
<a name="l00541"></a>00541 <span class="stringliteral">" -k, --keep-going don't stop at the first match\n"</span>
<a name="l00542"></a>00542 <span class="stringliteral">" -L, --dereference causes symlinks to be followed\n"</span>
<a name="l00543"></a>00543 <span class="stringliteral">" -n, --no-buffer do not buffer output\n"</span>
<a name="l00544"></a>00544 <span class="stringliteral">" -N, --no-pad do not pad output\n"</span>
<a name="l00545"></a>00545 <span class="stringliteral">" -p, --preserve-date preserve access times on files\n"</span>
<a name="l00546"></a>00546 <span class="stringliteral">" -r, --raw don't translate unprintable chars to \\ooo\n"</span>
<a name="l00547"></a>00547 <span class="stringliteral">" -s, --special-files treat special (block/char devices) files as\n"</span>
<a name="l00548"></a>00548 <span class="stringliteral">" ordinary ones\n"</span>
<a name="l00549"></a>00549 <span class="stringliteral">" --help display this help and exit\n"</span>
<a name="l00550"></a>00550 <span class="stringliteral">" --version output version information and exit\n"</span>
<a name="l00551"></a>00551 );
<a name="l00552"></a>00552 exit(EXIT_SUCCESS);
<a name="l00553"></a>00553 }
<a name="l00554"></a>00554 <span class="preprocessor">#endif</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on 1 Oct 2013 for rpm by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.7 </small></address>
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