<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<title>Barry: tarfile.cc Source File</title>
<link href="doxygen.css" rel="stylesheet" type="text/css">
<link href="tabs.css" rel="stylesheet" type="text/css">
</head><body>
<!-- Generated by Doxygen 1.5.6 -->
<div class="navigation" id="top">
<div class="tabs">
<ul>
<li><a href="index.html"><span>Main Page</span></a></li>
<li><a href="modules.html"><span>Modules</span></a></li>
<li><a href="namespaces.html"><span>Namespaces</span></a></li>
<li><a href="classes.html"><span>Classes</span></a></li>
<li class="current"><a href="files.html"><span>Files</span></a></li>
<li><a href="dirs.html"><span>Directories</span></a></li>
</ul>
</div>
<div class="navpath"><a class="el" href="dir_3e14c0bb4416cf979afc3165665fc916.html">src</a>
</div>
</div>
<div class="contents">
<h1>tarfile.cc</h1><a href="tarfile_8cc.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"></span><span class="comment">/// \file tarfile.cc</span>
<a name="l00003"></a>00003 <span class="comment"></span><span class="comment">/// API for reading and writing sequentially from compressed</span>
<a name="l00004"></a>00004 <span class="comment"></span><span class="comment">/// tar files.</span>
<a name="l00005"></a>00005 <span class="comment"></span>
<a name="l00006"></a>00006 <span class="comment">/*</span>
<a name="l00007"></a>00007 <span class="comment"> Copyright (C) 2007-2011, Chris Frey <cdfrey@foursquare.net></span>
<a name="l00008"></a>00008 <span class="comment"></span>
<a name="l00009"></a>00009 <span class="comment"> This program is free software; you can redistribute it and/or modify</span>
<a name="l00010"></a>00010 <span class="comment"> it under the terms of the GNU General Public License as published by</span>
<a name="l00011"></a>00011 <span class="comment"> the Free Software Foundation; either version 2 of the License, or</span>
<a name="l00012"></a>00012 <span class="comment"> (at your option) any later version.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment"> This program is distributed in the hope that it will be useful,</span>
<a name="l00015"></a>00015 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00016"></a>00016 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.</span>
<a name="l00017"></a>00017 <span class="comment"></span>
<a name="l00018"></a>00018 <span class="comment"> See the GNU General Public License in the COPYING file at the</span>
<a name="l00019"></a>00019 <span class="comment"> root directory of this project for more details.</span>
<a name="l00020"></a>00020 <span class="comment">*/</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="preprocessor">#include "<a class="code" href="tarfile_8h.html" title="API for reading and writing sequentially from compressed tar files.">tarfile.h</a>"</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include "<a class="code" href="data_8h.html" title="Class to deal with pre-saved data files.">data.h</a>"</span>
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="preprocessor">#include <fcntl.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <errno.h></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <string.h></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="keyword">namespace </span>reuse {
<a name="l00031"></a>00031
<a name="l00032"></a>00032 TarFile::TarFile(<span class="keyword">const</span> <span class="keywordtype">char</span> *filename,
<a name="l00033"></a>00033 <span class="keywordtype">bool</span> create,
<a name="l00034"></a>00034 tartype_t *compress_ops,
<a name="l00035"></a>00035 <span class="keywordtype">bool</span> always_throw)
<a name="l00036"></a>00036 : m_tar(0),
<a name="l00037"></a>00037 m_throw(always_throw),
<a name="l00038"></a>00038 m_writemode(create)
<a name="l00039"></a>00039 {
<a name="l00040"></a>00040 <span class="comment">// figure out how to handle the file flags/modes</span>
<a name="l00041"></a>00041 <span class="keywordtype">int</span> flags = 0;
<a name="l00042"></a>00042 mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
<a name="l00043"></a>00043
<a name="l00044"></a>00044 <span class="keywordflow">if</span>( m_writemode ) {
<a name="l00045"></a>00045 flags = O_WRONLY | O_CREAT | O_EXCL;
<a name="l00046"></a>00046 }
<a name="l00047"></a>00047 <span class="keywordflow">else</span> {
<a name="l00048"></a>00048 flags = O_RDONLY;
<a name="l00049"></a>00049 }
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="comment">// open... throw on error, as we are in the constructor</span>
<a name="l00052"></a>00052 <span class="keywordflow">if</span>( tar_open(&m_tar, const_cast<char*>(filename),
<a name="l00053"></a>00053 compress_ops, flags, mode, TAR_VERBOSE | TAR_GNU) == -1 ) {
<a name="l00054"></a>00054 <span class="keywordflow">throw</span> TarError(std::string(<span class="stringliteral">"Unable to open tar file: "</span>) + strerror(errno));
<a name="l00055"></a>00055 }
<a name="l00056"></a>00056 }
<a name="l00057"></a>00057
<a name="l00058"></a>00058 TarFile::~TarFile()
<a name="l00059"></a>00059 {
<a name="l00060"></a>00060 <span class="keywordflow">try</span> {
<a name="l00061"></a>00061 Close();
<a name="l00062"></a>00062 } <span class="keywordflow">catch</span>( TarError &te ) {}
<a name="l00063"></a>00063 }
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="keywordtype">bool</span> TarFile::False(<span class="keyword">const</span> <span class="keywordtype">char</span> *msg)
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067 m_last_error = msg;
<a name="l00068"></a>00068 <span class="keywordflow">if</span>( m_throw )
<a name="l00069"></a>00069 <span class="keywordflow">throw</span> TarError(msg);
<a name="l00070"></a>00070 <span class="keywordflow">else</span>
<a name="l00071"></a>00071 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00072"></a>00072 }
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="keywordtype">bool</span> TarFile::False(<span class="keyword">const</span> std::string &msg, <span class="keywordtype">int</span> err)
<a name="l00075"></a>00075 {
<a name="l00076"></a>00076 std::string str = msg;
<a name="l00077"></a>00077 str += <span class="stringliteral">": "</span>;
<a name="l00078"></a>00078 str += strerror(err);
<a name="l00079"></a>00079 <span class="keywordflow">return</span> False(str);
<a name="l00080"></a>00080 }
<a name="l00081"></a>00081
<a name="l00082"></a>00082 <span class="keywordtype">bool</span> TarFile::Close()
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 <span class="keywordflow">if</span>( m_tar ) {
<a name="l00085"></a>00085 <span class="keywordflow">if</span>( m_writemode ) {
<a name="l00086"></a>00086 <span class="keywordflow">if</span>( tar_append_eof(m_tar) != 0 )
<a name="l00087"></a>00087 <span class="keywordflow">return</span> False(<span class="stringliteral">"Unable to write eof"</span>, errno);
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089
<a name="l00090"></a>00090 <span class="keywordflow">if</span>( tar_close(m_tar) != 0 ) {
<a name="l00091"></a>00091 <span class="keywordflow">return</span> False(<span class="stringliteral">"Unable to close file"</span>, errno);
<a name="l00092"></a>00092 }
<a name="l00093"></a>00093 m_tar = 0;
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00096"></a>00096 }
<a name="l00097"></a>00097 <span class="comment"></span>
<a name="l00098"></a>00098 <span class="comment">/// Appends a new file to the current tarfile, using tarpath as</span>
<a name="l00099"></a>00099 <span class="comment">/// its internal filename, and data as the complete file contents.</span>
<a name="l00100"></a>00100 <span class="comment">/// Uses current date and time as file mtime.</span>
<a name="l00101"></a>00101 <span class="comment"></span><span class="keywordtype">bool</span> TarFile::AppendFile(<span class="keyword">const</span> <span class="keywordtype">char</span> *tarpath, <span class="keyword">const</span> std::string &data)
<a name="l00102"></a>00102 {
<a name="l00103"></a>00103 <span class="comment">// write standard file header</span>
<a name="l00104"></a>00104 th_set_type(m_tar, REGTYPE);
<a name="l00105"></a>00105 th_set_mode(m_tar, 0644);
<a name="l00106"></a>00106 th_set_path(m_tar, const_cast<char*>(tarpath));
<a name="l00107"></a>00107 th_set_user(m_tar, 0);
<a name="l00108"></a>00108 th_set_group(m_tar, 0);
<a name="l00109"></a>00109 th_set_size(m_tar, data.size());
<a name="l00110"></a>00110 th_set_mtime(m_tar, time(NULL));
<a name="l00111"></a>00111 <span class="keywordflow">if</span>( th_write(m_tar) != 0 ) {
<a name="l00112"></a>00112 <span class="keywordflow">return</span> False(<span class="stringliteral">"Unable to write tar header"</span>, errno);
<a name="l00113"></a>00113 }
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="comment">// write the data in blocks until finished</span>
<a name="l00116"></a>00116 <span class="keywordtype">char</span> block[T_BLOCKSIZE];
<a name="l00117"></a>00117 <span class="keywordflow">for</span>( <span class="keywordtype">size_t</span> pos = 0; pos < data.size(); pos += T_BLOCKSIZE ) {
<a name="l00118"></a>00118 memset(block, 0, T_BLOCKSIZE);
<a name="l00119"></a>00119
<a name="l00120"></a>00120 <span class="keywordtype">size_t</span> size = T_BLOCKSIZE;
<a name="l00121"></a>00121 <span class="keywordflow">if</span>( data.size() - pos < T_BLOCKSIZE )
<a name="l00122"></a>00122 size = data.size() - pos;
<a name="l00123"></a>00123
<a name="l00124"></a>00124 memcpy(block, data.data() + pos, size);
<a name="l00125"></a>00125
<a name="l00126"></a>00126 <span class="keywordflow">if</span>( tar_block_write(m_tar, block) != T_BLOCKSIZE ) {
<a name="l00127"></a>00127 <span class="keywordflow">return</span> False(<span class="stringliteral">"Unable to write block"</span>, errno);
<a name="l00128"></a>00128 }
<a name="l00129"></a>00129 }
<a name="l00130"></a>00130
<a name="l00131"></a>00131 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00132"></a>00132 }
<a name="l00133"></a>00133 <span class="comment"></span>
<a name="l00134"></a>00134 <span class="comment">/// Reads next available file into data, filling tarpath with</span>
<a name="l00135"></a>00135 <span class="comment">/// internal filename from tarball.</span>
<a name="l00136"></a>00136 <span class="comment"></span><span class="keywordtype">bool</span> TarFile::ReadNextFile(std::string &tarpath, std::string &data)
<a name="l00137"></a>00137 {
<a name="l00138"></a>00138 <span class="comment">// start fresh</span>
<a name="l00139"></a>00139 tarpath.clear();
<a name="l00140"></a>00140 data.clear();
<a name="l00141"></a>00141
<a name="l00142"></a>00142 <span class="comment">// read next tar file header... skip all directories</span>
<a name="l00143"></a>00143 <span class="keywordflow">do</span> {
<a name="l00144"></a>00144 <span class="keywordflow">if</span>( th_read(m_tar) != 0 ) {
<a name="l00145"></a>00145 <span class="comment">// this is not necessarily an error, as it could just</span>
<a name="l00146"></a>00146 <span class="comment">// be the end of file, so a simple false is good here,</span>
<a name="l00147"></a>00147 <span class="comment">// don't throw an exception</span>
<a name="l00148"></a>00148 m_last_error = <span class="stringliteral">""</span>;
<a name="l00149"></a>00149 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00150"></a>00150 }
<a name="l00151"></a>00151 } <span class="keywordflow">while</span>( TH_ISDIR(m_tar) );
<a name="l00152"></a>00152
<a name="l00153"></a>00153 <span class="comment">// write standard file header</span>
<a name="l00154"></a>00154 <span class="keywordflow">if</span>( !TH_ISREG(m_tar) ) {
<a name="l00155"></a>00155 <span class="keywordflow">return</span> False(<span class="stringliteral">"Only regular files are supported inside a tarball."</span>);
<a name="l00156"></a>00156 }
<a name="l00157"></a>00157
<a name="l00158"></a>00158 <span class="keywordtype">char</span> *pathname = th_get_pathname(m_tar);
<a name="l00159"></a>00159 tarpath = pathname;
<a name="l00160"></a>00160 <span class="comment">//</span>
<a name="l00161"></a>00161 <span class="comment">// FIXME (leak) - someday, when all distros use a patched version of</span>
<a name="l00162"></a>00162 <span class="comment">// libtar, we may be able to avoid this memory leak, but</span>
<a name="l00163"></a>00163 <span class="comment">// th_get_pathname() does not consistently return a user-freeable</span>
<a name="l00164"></a>00164 <span class="comment">// string on all distros.</span>
<a name="l00165"></a>00165 <span class="comment">//</span>
<a name="l00166"></a>00166 <span class="comment">// See the following links for more information:</span>
<a name="l00167"></a>00167 <span class="comment">// https://bugs.launchpad.net/ubuntu/+source/libtar/+bug/41804</span>
<a name="l00168"></a>00168 <span class="comment">// https://lists.feep.net:8080/pipermail/libtar/2006-April/000222.html</span>
<a name="l00169"></a>00169 <span class="comment">//</span>
<a name="l00170"></a>00170 <span class="comment">// free(pathname);</span>
<a name="l00171"></a>00171 <span class="keywordtype">size_t</span> size = th_get_size(m_tar);
<a name="l00172"></a>00172
<a name="l00173"></a>00173 <span class="comment">// read the data in blocks until finished</span>
<a name="l00174"></a>00174 <span class="keywordtype">char</span> block[T_BLOCKSIZE];
<a name="l00175"></a>00175 <span class="keywordflow">for</span>( <span class="keywordtype">size_t</span> pos = 0; pos < size; pos += T_BLOCKSIZE ) {
<a name="l00176"></a>00176 memset(block, 0, T_BLOCKSIZE);
<a name="l00177"></a>00177
<a name="l00178"></a>00178 <span class="keywordtype">size_t</span> readsize = T_BLOCKSIZE;
<a name="l00179"></a>00179 <span class="keywordflow">if</span>( size - pos < T_BLOCKSIZE )
<a name="l00180"></a>00180 readsize = size - pos;
<a name="l00181"></a>00181
<a name="l00182"></a>00182 <span class="keywordflow">if</span>( tar_block_read(m_tar, block) != T_BLOCKSIZE ) {
<a name="l00183"></a>00183 <span class="keywordflow">return</span> False(<span class="stringliteral">"Unable to read block"</span>, errno);
<a name="l00184"></a>00184 }
<a name="l00185"></a>00185
<a name="l00186"></a>00186 data.append(block, readsize);
<a name="l00187"></a>00187 }
<a name="l00188"></a>00188
<a name="l00189"></a>00189 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00190"></a>00190 }
<a name="l00191"></a>00191
<a name="l00192"></a>00192 <span class="comment">// FIXME - yes, this is blatant copying of code, but this is</span>
<a name="l00193"></a>00193 <span class="comment">// specific to Barry, to use a Barry::Data object instead of std::string</span>
<a name="l00194"></a>00194 <span class="comment">// in order to reduce copies.</span>
<a name="l00195"></a>00195 <span class="keywordtype">bool</span> TarFile::ReadNextFile(std::string &tarpath, Barry::Data &data)
<a name="l00196"></a>00196 {
<a name="l00197"></a>00197 <span class="comment">// start fresh</span>
<a name="l00198"></a>00198 tarpath.clear();
<a name="l00199"></a>00199 data.QuickZap();
<a name="l00200"></a>00200
<a name="l00201"></a>00201 <span class="comment">// read next tar file header... skip all directories</span>
<a name="l00202"></a>00202 <span class="keywordflow">do</span> {
<a name="l00203"></a>00203 <span class="keywordflow">if</span>( th_read(m_tar) != 0 ) {
<a name="l00204"></a>00204 <span class="comment">// this is not necessarily an error, as it could just</span>
<a name="l00205"></a>00205 <span class="comment">// be the end of file, so a simple false is good here,</span>
<a name="l00206"></a>00206 <span class="comment">// don't throw an exception</span>
<a name="l00207"></a>00207 m_last_error = <span class="stringliteral">""</span>;
<a name="l00208"></a>00208 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00209"></a>00209 }
<a name="l00210"></a>00210 } <span class="keywordflow">while</span>( TH_ISDIR(m_tar) );
<a name="l00211"></a>00211
<a name="l00212"></a>00212 <span class="comment">// write standard file header</span>
<a name="l00213"></a>00213 <span class="keywordflow">if</span>( !TH_ISREG(m_tar) ) {
<a name="l00214"></a>00214 <span class="keywordflow">return</span> False(<span class="stringliteral">"Only regular files are supported inside a tarball."</span>);
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216
<a name="l00217"></a>00217 <span class="keywordtype">char</span> *pathname = th_get_pathname(m_tar);
<a name="l00218"></a>00218 tarpath = pathname;
<a name="l00219"></a>00219 <span class="comment">//</span>
<a name="l00220"></a>00220 <span class="comment">// FIXME (leak) - someday, when all distros use a patched version of</span>
<a name="l00221"></a>00221 <span class="comment">// libtar, we may be able to avoid this memory leak, but</span>
<a name="l00222"></a>00222 <span class="comment">// th_get_pathname() does not consistently return a user-freeable</span>
<a name="l00223"></a>00223 <span class="comment">// string on all distros.</span>
<a name="l00224"></a>00224 <span class="comment">//</span>
<a name="l00225"></a>00225 <span class="comment">// See the following links for more information:</span>
<a name="l00226"></a>00226 <span class="comment">// https://bugs.launchpad.net/ubuntu/+source/libtar/+bug/41804</span>
<a name="l00227"></a>00227 <span class="comment">// https://lists.feep.net:8080/pipermail/libtar/2006-April/000222.html</span>
<a name="l00228"></a>00228 <span class="comment">//</span>
<a name="l00229"></a>00229 <span class="comment">// free(pathname);</span>
<a name="l00230"></a>00230 <span class="keywordtype">size_t</span> size = th_get_size(m_tar);
<a name="l00231"></a>00231
<a name="l00232"></a>00232 <span class="comment">// read the data in blocks until finished</span>
<a name="l00233"></a>00233 <span class="keywordtype">char</span> block[T_BLOCKSIZE];
<a name="l00234"></a>00234 <span class="keywordflow">for</span>( <span class="keywordtype">size_t</span> pos = 0; pos < size; pos += T_BLOCKSIZE ) {
<a name="l00235"></a>00235 memset(block, 0, T_BLOCKSIZE);
<a name="l00236"></a>00236
<a name="l00237"></a>00237 <span class="keywordtype">size_t</span> readsize = T_BLOCKSIZE;
<a name="l00238"></a>00238 <span class="keywordflow">if</span>( size - pos < T_BLOCKSIZE )
<a name="l00239"></a>00239 readsize = size - pos;
<a name="l00240"></a>00240
<a name="l00241"></a>00241 <span class="keywordflow">if</span>( tar_block_read(m_tar, block) != T_BLOCKSIZE ) {
<a name="l00242"></a>00242 <span class="keywordflow">return</span> False(<span class="stringliteral">"Unable to read block"</span>, errno);
<a name="l00243"></a>00243 }
<a name="l00244"></a>00244
<a name="l00245"></a>00245 data.Append(block, readsize);
<a name="l00246"></a>00246 }
<a name="l00247"></a>00247
<a name="l00248"></a>00248 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00249"></a>00249 }
<a name="l00250"></a>00250 <span class="comment"></span>
<a name="l00251"></a>00251 <span class="comment">/// Read next available filename, skipping the data if it is</span>
<a name="l00252"></a>00252 <span class="comment">/// a regular file</span>
<a name="l00253"></a>00253 <span class="comment"></span><span class="keywordtype">bool</span> TarFile::ReadNextFilenameOnly(std::string &tarpath)
<a name="l00254"></a>00254 {
<a name="l00255"></a>00255 <span class="comment">// start fresh</span>
<a name="l00256"></a>00256 tarpath.clear();
<a name="l00257"></a>00257
<a name="l00258"></a>00258 <span class="comment">// read next tar file header... skip all directories</span>
<a name="l00259"></a>00259 <span class="keywordflow">do</span> {
<a name="l00260"></a>00260 <span class="keywordflow">if</span>( th_read(m_tar) != 0 ) {
<a name="l00261"></a>00261 <span class="comment">// this is not necessarily an error, as it could just</span>
<a name="l00262"></a>00262 <span class="comment">// be the end of file, so a simple false is good here,</span>
<a name="l00263"></a>00263 <span class="comment">// don't throw an exception</span>
<a name="l00264"></a>00264 m_last_error = <span class="stringliteral">""</span>;
<a name="l00265"></a>00265 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00266"></a>00266 }
<a name="l00267"></a>00267 } <span class="keywordflow">while</span>( TH_ISDIR(m_tar) );
<a name="l00268"></a>00268
<a name="l00269"></a>00269 <span class="comment">// write standard file header</span>
<a name="l00270"></a>00270 <span class="keywordflow">if</span>( !TH_ISREG(m_tar) ) {
<a name="l00271"></a>00271 <span class="keywordflow">return</span> False(<span class="stringliteral">"Only regular files are supported inside a tarball."</span>);
<a name="l00272"></a>00272 }
<a name="l00273"></a>00273
<a name="l00274"></a>00274 <span class="keywordtype">char</span> *pathname = th_get_pathname(m_tar);
<a name="l00275"></a>00275 tarpath = pathname;
<a name="l00276"></a>00276 <span class="comment">// See above FIXME (leak) comment</span>
<a name="l00277"></a>00277 <span class="comment">// free(pathname);</span>
<a name="l00278"></a>00278
<a name="l00279"></a>00279 <span class="keywordflow">if</span>( tar_skip_regfile(m_tar) != 0 ) {
<a name="l00280"></a>00280 <span class="keywordflow">return</span> False(<span class="stringliteral">"Unable to skip tar file"</span>, errno);
<a name="l00281"></a>00281 }
<a name="l00282"></a>00282
<a name="l00283"></a>00283 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00284"></a>00284 }
<a name="l00285"></a>00285
<a name="l00286"></a>00286
<a name="l00287"></a>00287 } <span class="comment">// namespace reuse</span>
<a name="l00288"></a>00288
<a name="l00289"></a>00289
<a name="l00290"></a>00290 <span class="preprocessor">#ifdef __TEST_MODE__</span>
<a name="l00291"></a>00291 <span class="preprocessor"></span>
<a name="l00292"></a>00292 <span class="preprocessor">#include <iostream></span>
<a name="l00293"></a>00293 <span class="preprocessor">#include <unistd.h></span>
<a name="l00294"></a>00294
<a name="l00295"></a>00295 <span class="keyword">using namespace </span>std;
<a name="l00296"></a>00296
<a name="l00297"></a>00297 <span class="keywordtype">int</span> main()
<a name="l00298"></a>00298 {
<a name="l00299"></a>00299 <span class="keywordflow">try</span> {
<a name="l00300"></a>00300 cout << <span class="stringliteral">"Writing test file..."</span> << endl;
<a name="l00301"></a>00301 reuse::TarFile output(<span class="stringliteral">"tartest.tar.gz"</span>, <span class="keyword">true</span>, <span class="keyword">true</span>, <span class="keyword">true</span>);
<a name="l00302"></a>00302 std::string data;
<a name="l00303"></a>00303 <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i < 60; i++ ) {
<a name="l00304"></a>00304 data.append(<span class="stringliteral">"0123456789"</span>, 10);
<a name="l00305"></a>00305 }
<a name="l00306"></a>00306
<a name="l00307"></a>00307 output.AppendFile(<span class="stringliteral">"path1/test1.txt"</span>, data);
<a name="l00308"></a>00308 output.AppendFile(<span class="stringliteral">"path2/test2.txt"</span>, data);
<a name="l00309"></a>00309 output.Close();
<a name="l00310"></a>00310
<a name="l00311"></a>00311
<a name="l00312"></a>00312 cout << <span class="stringliteral">"Reading test file..."</span> << endl;
<a name="l00313"></a>00313 reuse::TarFile input(<span class="stringliteral">"tartest.tar.gz"</span>, <span class="keyword">false</span>, <span class="keyword">true</span>, <span class="keyword">true</span>);
<a name="l00314"></a>00314 std::string path, incoming;
<a name="l00315"></a>00315
<a name="l00316"></a>00316 <span class="keywordflow">while</span>( input.ReadNextFile(path, incoming) ) {
<a name="l00317"></a>00317 cout << <span class="stringliteral">"Read: "</span> << path
<a name="l00318"></a>00318 << <span class="stringliteral">" Data: "</span>
<a name="l00319"></a>00319 << (( data == incoming ) ? <span class="stringliteral">"equal"</span> : <span class="stringliteral">"different"</span>)
<a name="l00320"></a>00320 << endl;
<a name="l00321"></a>00321 }
<a name="l00322"></a>00322
<a name="l00323"></a>00323 input.Close();
<a name="l00324"></a>00324
<a name="l00325"></a>00325 unlink(<span class="stringliteral">"tartest.tar.gz"</span>);
<a name="l00326"></a>00326
<a name="l00327"></a>00327 } <span class="keywordflow">catch</span>( reuse::TarFile::TarError &te ) {
<a name="l00328"></a>00328 cerr << te.what() << endl;
<a name="l00329"></a>00329 <span class="keywordflow">return</span> 1;
<a name="l00330"></a>00330 }
<a name="l00331"></a>00331 }
<a name="l00332"></a>00332
<a name="l00333"></a>00333 <span class="preprocessor">#endif</span>
<a name="l00334"></a>00334 <span class="preprocessor"></span>
</pre></div></div>
<hr size="1"><address style="text-align: right;"><small>Generated on Tue Mar 1 17:50:16 2011 for Barry by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address>
</body>
</html>
