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    <h2><a name="content"></a>libkmime</h2>


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<h1>kmime_codecs.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*  -*- c++ -*-</span>
<a name="l00002"></a>00002 <span class="comment">    kmime_codecs.cpp</span>
<a name="l00003"></a>00003 <span class="comment"></span>
<a name="l00004"></a>00004 <span class="comment">    This file is part of KMime, the KDE internet mail/usenet news message library.</span>
<a name="l00005"></a>00005 <span class="comment">    Copyright (c) 2001-2002 Marc Mutz &lt;mutz@kde.org&gt;</span>
<a name="l00006"></a>00006 <span class="comment"></span>
<a name="l00007"></a>00007 <span class="comment">    KMime is free software; you can redistribute it and/or modify it</span>
<a name="l00008"></a>00008 <span class="comment">    under the terms of the GNU General Public License, version 2, as</span>
<a name="l00009"></a>00009 <span class="comment">    published by the Free Software Foundation.</span>
<a name="l00010"></a>00010 <span class="comment"></span>
<a name="l00011"></a>00011 <span class="comment">    KMime is distributed in the hope that it will be useful, but</span>
<a name="l00012"></a>00012 <span class="comment">    WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00013"></a>00013 <span class="comment">    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU</span>
<a name="l00014"></a>00014 <span class="comment">    General Public License for more details.</span>
<a name="l00015"></a>00015 <span class="comment"></span>
<a name="l00016"></a>00016 <span class="comment">    You should have received a copy of the GNU General Public License</span>
<a name="l00017"></a>00017 <span class="comment">    along with this library; if not, write to the Free Software</span>
<a name="l00018"></a>00018 <span class="comment">    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA</span>
<a name="l00019"></a>00019 <span class="comment"></span>
<a name="l00020"></a>00020 <span class="comment">    In addition, as a special exception, the copyright holders give</span>
<a name="l00021"></a>00021 <span class="comment">    permission to link the code of this library with any edition of</span>
<a name="l00022"></a>00022 <span class="comment">    the Qt library by Trolltech AS, Norway (or with modified versions</span>
<a name="l00023"></a>00023 <span class="comment">    of Qt that use the same license as Qt), and distribute linked</span>
<a name="l00024"></a>00024 <span class="comment">    combinations including the two.  You must obey the GNU General</span>
<a name="l00025"></a>00025 <span class="comment">    Public License in all respects for all of the code used other than</span>
<a name="l00026"></a>00026 <span class="comment">    Qt.  If you modify this file, you may extend this exception to</span>
<a name="l00027"></a>00027 <span class="comment">    your version of the file, but you are not obligated to do so.  If</span>
<a name="l00028"></a>00028 <span class="comment">    you do not wish to do so, delete this exception statement from</span>
<a name="l00029"></a>00029 <span class="comment">    your version.</span>
<a name="l00030"></a>00030 <span class="comment">*/</span>
<a name="l00031"></a>00031 
<a name="l00032"></a>00032 <span class="preprocessor">#include "kmime_codecs.h"</span>
<a name="l00033"></a>00033 <span class="preprocessor">#include "kmime_util.h"</span>
<a name="l00034"></a>00034 
<a name="l00035"></a>00035 <span class="preprocessor">#include "kmime_codec_base64.h"</span>
<a name="l00036"></a>00036 <span class="preprocessor">#include "kmime_codec_qp.h"</span>
<a name="l00037"></a>00037 <span class="preprocessor">#include "kmime_codec_uuencode.h"</span>
<a name="l00038"></a>00038 <span class="preprocessor">#include "kmime_codec_identity.h"</span>
<a name="l00039"></a>00039 
<a name="l00040"></a>00040 <span class="preprocessor">#include &lt;kdebug.h&gt;</span>
<a name="l00041"></a>00041 
<a name="l00042"></a>00042 <span class="preprocessor">#include &lt;qcstring.h&gt;</span>
<a name="l00043"></a>00043 <span class="preprocessor">#include &lt;kstaticdeleter.h&gt;</span>
<a name="l00044"></a>00044 
<a name="l00045"></a>00045 <span class="preprocessor">#include &lt;cassert&gt;</span>
<a name="l00046"></a>00046 <span class="preprocessor">#include &lt;cstring&gt;</span>
<a name="l00047"></a>00047 
<a name="l00048"></a>00048 <span class="keyword">using namespace </span>KMime;
<a name="l00049"></a>00049 
<a name="l00050"></a>00050 <span class="keyword">namespace </span>KMime {
<a name="l00051"></a>00051 
<a name="l00052"></a>00052 <span class="comment">// global list of KMime::Codec's</span>
<a name="l00053"></a>00053 QAsciiDict&lt;Codec&gt;* Codec::all = 0;
<a name="l00054"></a>00054 <span class="keyword">static</span> KStaticDeleter&lt;QAsciiDict&lt;Codec&gt; &gt; sdAll;
<a name="l00055"></a>00055 <span class="preprocessor">#if defined(QT_THREAD_SUPPORT)</span>
<a name="l00056"></a>00056 <span class="preprocessor"></span>QMutex* Codec::dictLock = 0;
<a name="l00057"></a>00057 <span class="keyword">static</span> KStaticDeleter&lt;QMutex&gt; sdDictLock;
<a name="l00058"></a>00058 <span class="preprocessor">#endif</span>
<a name="l00059"></a>00059 <span class="preprocessor"></span>
<a name="l00060"></a>00060 <span class="keywordtype">void</span> Codec::fillDictionary() {
<a name="l00061"></a>00061 
<a name="l00062"></a>00062   all-&gt;setAutoDelete(<span class="keyword">true</span>);
<a name="l00063"></a>00063 
<a name="l00064"></a>00064   <span class="comment">//all-&gt;insert( "7bit", new SevenBitCodec() );</span>
<a name="l00065"></a>00065   <span class="comment">//all-&gt;insert( "8bit", new EightBitCodec() );</span>
<a name="l00066"></a>00066   all-&gt;insert( <span class="stringliteral">"base64"</span>, <span class="keyword">new</span> Base64Codec() );
<a name="l00067"></a>00067   all-&gt;insert( <span class="stringliteral">"quoted-printable"</span>, <span class="keyword">new</span> QuotedPrintableCodec() );
<a name="l00068"></a>00068   all-&gt;insert( <span class="stringliteral">"b"</span>, <span class="keyword">new</span> Rfc2047BEncodingCodec() );
<a name="l00069"></a>00069   all-&gt;insert( <span class="stringliteral">"q"</span>, <span class="keyword">new</span> Rfc2047QEncodingCodec() );
<a name="l00070"></a>00070   all-&gt;insert( <span class="stringliteral">"x-kmime-rfc2231"</span>, <span class="keyword">new</span> Rfc2231EncodingCodec() );
<a name="l00071"></a>00071   all-&gt;insert( <span class="stringliteral">"x-uuencode"</span>, <span class="keyword">new</span> UUCodec() );
<a name="l00072"></a>00072   <span class="comment">//all-&gt;insert( "binary", new BinaryCodec() );</span>
<a name="l00073"></a>00073 
<a name="l00074"></a>00074 }
<a name="l00075"></a>00075 
<a name="l00076"></a>00076 <a class="code" href="classKMime_1_1Codec.html" title="Abstract base class of codecs like base64 and quoted-printable.">Codec</a> * Codec::codecForName( <span class="keyword">const</span> <span class="keywordtype">char</span> * name ) {
<a name="l00077"></a>00077 <span class="preprocessor">#if defined(QT_THREAD_SUPPORT)</span>
<a name="l00078"></a>00078 <span class="preprocessor"></span>  <span class="keywordflow">if</span> ( !dictLock )
<a name="l00079"></a>00079     sdDictLock.setObject( dictLock, <span class="keyword">new</span> QMutex );
<a name="l00080"></a>00080   dictLock-&gt;lock(); <span class="comment">// protect "all"</span>
<a name="l00081"></a>00081 <span class="preprocessor">#endif</span>
<a name="l00082"></a>00082 <span class="preprocessor"></span>  <span class="keywordflow">if</span> ( !all ) {
<a name="l00083"></a>00083     sdAll.setObject( all, <span class="keyword">new</span> QAsciiDict&lt;Codec&gt;( 11, <span class="keyword">false</span> <span class="comment">/* case-insensitive */</span>) );
<a name="l00084"></a>00084     fillDictionary();
<a name="l00085"></a>00085   }
<a name="l00086"></a>00086   <a class="code" href="classKMime_1_1Codec.html" title="Abstract base class of codecs like base64 and quoted-printable.">Codec</a> * codec = (*all)[ name ];
<a name="l00087"></a>00087 <span class="preprocessor">#if defined(QT_THREAD_SUPPORT)</span>
<a name="l00088"></a>00088 <span class="preprocessor"></span>  dictLock-&gt;unlock();
<a name="l00089"></a>00089 <span class="preprocessor">#endif</span>
<a name="l00090"></a>00090 <span class="preprocessor"></span>
<a name="l00091"></a>00091   <span class="keywordflow">if</span> ( !codec )
<a name="l00092"></a>00092     kdDebug() &lt;&lt; <span class="stringliteral">"Unknown codec \""</span> &lt;&lt; name &lt;&lt; <span class="stringliteral">"\" requested!"</span> &lt;&lt; endl;
<a name="l00093"></a>00093 
<a name="l00094"></a>00094   <span class="keywordflow">return</span> codec;
<a name="l00095"></a>00095 }
<a name="l00096"></a>00096 
<a name="l00097"></a>00097 <a class="code" href="classKMime_1_1Codec.html" title="Abstract base class of codecs like base64 and quoted-printable.">Codec</a> * Codec::codecForName( <span class="keyword">const</span> QCString &amp; name ) {
<a name="l00098"></a>00098   <span class="keywordflow">return</span> codecForName( name.data() );
<a name="l00099"></a>00099 }
<a name="l00100"></a>00100 
<a name="l00101"></a><a class="code" href="classKMime_1_1Codec.html#21b8ace8ab58d92408ab901f0171c7b6">00101</a> <span class="keywordtype">bool</span> <a class="code" href="classKMime_1_1Codec.html#21b8ace8ab58d92408ab901f0171c7b6" title="Convenience wrapper that can be used for small chunks of data when you can provide...">Codec::encode</a>( <span class="keyword">const</span> <span class="keywordtype">char</span>* &amp; scursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> send,
<a name="l00102"></a>00102             <span class="keywordtype">char</span>* &amp; dcursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> dend,
<a name="l00103"></a>00103             <span class="keywordtype">bool</span> withCRLF )<span class="keyword"> const</span>
<a name="l00104"></a>00104 <span class="keyword"></span>{
<a name="l00105"></a>00105   <span class="comment">// get an encoder:</span>
<a name="l00106"></a>00106   <a class="code" href="classKMime_1_1Encoder.html" title="Stateful encoder class, modelled after QTextEncoder.">Encoder</a> * enc = makeEncoder( withCRLF );
<a name="l00107"></a>00107   assert( enc );
<a name="l00108"></a>00108 
<a name="l00109"></a>00109   <span class="comment">// encode and check for output buffer overflow:</span>
<a name="l00110"></a>00110   <span class="keywordflow">while</span> ( !enc-&gt;<a class="code" href="classKMime_1_1Encoder.html#aa2eefa0dbf49272c1ec09b8a4b99ae9" title="Encode a chunk of data, maintaining state information between calls.">encode</a>( scursor, send, dcursor, dend ) )
<a name="l00111"></a>00111     <span class="keywordflow">if</span> ( dcursor == dend ) {
<a name="l00112"></a>00112       <span class="keyword">delete</span> enc;
<a name="l00113"></a>00113       <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// not enough space in output buffer</span>
<a name="l00114"></a>00114     }
<a name="l00115"></a>00115 
<a name="l00116"></a>00116   <span class="comment">// finish and check for output buffer overflow:</span>
<a name="l00117"></a>00117   <span class="keywordflow">while</span> ( !enc-&gt;<a class="code" href="classKMime_1_1Encoder.html#044de80fc6464e793e8951d282b9c9c0" title="Call this method to finalize the output stream.">finish</a>( dcursor, dend ) )
<a name="l00118"></a>00118     <span class="keywordflow">if</span> ( dcursor == dend ) {
<a name="l00119"></a>00119       <span class="keyword">delete</span> enc;
<a name="l00120"></a>00120       <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// not enough space in output buffer</span>
<a name="l00121"></a>00121     }
<a name="l00122"></a>00122 
<a name="l00123"></a>00123   <span class="comment">// cleanup and return:</span>
<a name="l00124"></a>00124   <span class="keyword">delete</span> enc;
<a name="l00125"></a>00125   <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// successfully encoded.</span>
<a name="l00126"></a>00126 }
<a name="l00127"></a>00127 
<a name="l00128"></a><a class="code" href="classKMime_1_1Codec.html#23b4ec5b0f01efaa2f2fd4c34d826142">00128</a> QByteArray <a class="code" href="classKMime_1_1Codec.html#21b8ace8ab58d92408ab901f0171c7b6" title="Convenience wrapper that can be used for small chunks of data when you can provide...">Codec::encode</a>( <span class="keyword">const</span> QByteArray &amp; src, <span class="keywordtype">bool</span> withCRLF )<span class="keyword"> const</span>
<a name="l00129"></a>00129 <span class="keyword"></span>{
<a name="l00130"></a>00130   <span class="comment">// allocate buffer for the worst case:</span>
<a name="l00131"></a>00131   QByteArray result( maxEncodedSizeFor( src.size(), withCRLF ) );
<a name="l00132"></a>00132 
<a name="l00133"></a>00133   <span class="comment">// set up iterators:</span>
<a name="l00134"></a>00134   QByteArray::ConstIterator iit = src.begin();
<a name="l00135"></a>00135   QByteArray::ConstIterator iend = src.end();
<a name="l00136"></a>00136   QByteArray::Iterator oit = result.begin();
<a name="l00137"></a>00137   QByteArray::ConstIterator oend = result.end();
<a name="l00138"></a>00138 
<a name="l00139"></a>00139   <span class="comment">// encode</span>
<a name="l00140"></a>00140   <span class="keywordflow">if</span> ( !<a class="code" href="classKMime_1_1Codec.html#21b8ace8ab58d92408ab901f0171c7b6" title="Convenience wrapper that can be used for small chunks of data when you can provide...">encode</a>( iit, iend, oit, oend, withCRLF ) )
<a name="l00141"></a>00141     kdFatal() &lt;&lt; <a class="code" href="classKMime_1_1Codec.html#342be68b97a4bb088907adbc0ef8938f">name</a>() &lt;&lt; <span class="stringliteral">" codec lies about it's mEncodedSizeFor()"</span>
<a name="l00142"></a>00142           &lt;&lt; endl;
<a name="l00143"></a>00143 
<a name="l00144"></a>00144   <span class="comment">// shrink result to actual size:</span>
<a name="l00145"></a>00145   result.truncate( oit - result.begin() );
<a name="l00146"></a>00146 
<a name="l00147"></a>00147   <span class="keywordflow">return</span> result;
<a name="l00148"></a>00148 }
<a name="l00149"></a>00149 
<a name="l00150"></a><a class="code" href="classKMime_1_1Codec.html#9cbfcdd595e431b432398a148c441c36">00150</a> QCString <a class="code" href="classKMime_1_1Codec.html#9cbfcdd595e431b432398a148c441c36" title="Even more convenient, but also a bit slower and more memory intensive, since it allocates...">Codec::encodeToQCString</a>( <span class="keyword">const</span> QByteArray &amp; src, <span class="keywordtype">bool</span> withCRLF )<span class="keyword"> const</span>
<a name="l00151"></a>00151 <span class="keyword"></span>{
<a name="l00152"></a>00152   <span class="comment">// allocate buffer for the worst case (remember to add one for the trailing NUL)</span>
<a name="l00153"></a>00153   QCString result( maxEncodedSizeFor( src.size(), withCRLF ) + 1 );
<a name="l00154"></a>00154 
<a name="l00155"></a>00155   <span class="comment">// set up iterators:</span>
<a name="l00156"></a>00156   QByteArray::ConstIterator iit = src.begin();
<a name="l00157"></a>00157   QByteArray::ConstIterator iend = src.end();
<a name="l00158"></a>00158   QByteArray::Iterator oit = result.begin();
<a name="l00159"></a>00159   QByteArray::ConstIterator oend = result.end() - 1;
<a name="l00160"></a>00160 
<a name="l00161"></a>00161   <span class="comment">// encode</span>
<a name="l00162"></a>00162   <span class="keywordflow">if</span> ( !<a class="code" href="classKMime_1_1Codec.html#21b8ace8ab58d92408ab901f0171c7b6" title="Convenience wrapper that can be used for small chunks of data when you can provide...">encode</a>( iit, iend, oit, oend, withCRLF ) )
<a name="l00163"></a>00163     kdFatal() &lt;&lt; <a class="code" href="classKMime_1_1Codec.html#342be68b97a4bb088907adbc0ef8938f">name</a>() &lt;&lt; <span class="stringliteral">" codec lies about it's mEncodedSizeFor()"</span>
<a name="l00164"></a>00164           &lt;&lt; endl;
<a name="l00165"></a>00165 
<a name="l00166"></a>00166   <span class="comment">// shrink result to actual size:</span>
<a name="l00167"></a>00167   result.truncate( oit - result.begin() );
<a name="l00168"></a>00168 
<a name="l00169"></a>00169   <span class="keywordflow">return</span> result;
<a name="l00170"></a>00170 }
<a name="l00171"></a>00171 
<a name="l00172"></a><a class="code" href="classKMime_1_1Codec.html#b2c4e5f9af08175a309955f01e2166ae">00172</a> QByteArray <a class="code" href="classKMime_1_1Codec.html#1cebe7f90ca045f907641203854d994f" title="Convenience wrapper that can be used for small chunks of data when you can provide...">Codec::decode</a>( <span class="keyword">const</span> QByteArray &amp; src, <span class="keywordtype">bool</span> withCRLF )<span class="keyword"> const</span>
<a name="l00173"></a>00173 <span class="keyword"></span>{
<a name="l00174"></a>00174   <span class="comment">// allocate buffer for the worst case:</span>
<a name="l00175"></a>00175   QByteArray result( maxDecodedSizeFor( src.size(), withCRLF ) );
<a name="l00176"></a>00176 
<a name="l00177"></a>00177   <span class="comment">// set up iterators:</span>
<a name="l00178"></a>00178   QByteArray::ConstIterator iit = src.begin();
<a name="l00179"></a>00179   QByteArray::ConstIterator iend = src.end();
<a name="l00180"></a>00180   QByteArray::Iterator oit = result.begin();
<a name="l00181"></a>00181   QByteArray::ConstIterator oend = result.end();
<a name="l00182"></a>00182 
<a name="l00183"></a>00183   <span class="comment">// decode</span>
<a name="l00184"></a>00184   <span class="keywordflow">if</span> ( !<a class="code" href="classKMime_1_1Codec.html#1cebe7f90ca045f907641203854d994f" title="Convenience wrapper that can be used for small chunks of data when you can provide...">decode</a>( iit, iend, oit, oend, withCRLF ) )
<a name="l00185"></a>00185     kdFatal() &lt;&lt; <a class="code" href="classKMime_1_1Codec.html#342be68b97a4bb088907adbc0ef8938f">name</a>() &lt;&lt; <span class="stringliteral">" codec lies about it's maxDecodedSizeFor()"</span>
<a name="l00186"></a>00186           &lt;&lt; endl;
<a name="l00187"></a>00187 
<a name="l00188"></a>00188   <span class="comment">// shrink result to actual size:</span>
<a name="l00189"></a>00189   result.truncate( oit - result.begin() );
<a name="l00190"></a>00190 
<a name="l00191"></a>00191   <span class="keywordflow">return</span> result;
<a name="l00192"></a>00192 }
<a name="l00193"></a>00193 
<a name="l00194"></a><a class="code" href="classKMime_1_1Codec.html#1cebe7f90ca045f907641203854d994f">00194</a> <span class="keywordtype">bool</span> <a class="code" href="classKMime_1_1Codec.html#1cebe7f90ca045f907641203854d994f" title="Convenience wrapper that can be used for small chunks of data when you can provide...">Codec::decode</a>( <span class="keyword">const</span> <span class="keywordtype">char</span>* &amp; scursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> send,
<a name="l00195"></a>00195             <span class="keywordtype">char</span>* &amp; dcursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> dend,
<a name="l00196"></a>00196             <span class="keywordtype">bool</span> withCRLF )<span class="keyword"> const</span>
<a name="l00197"></a>00197 <span class="keyword"></span>{
<a name="l00198"></a>00198   <span class="comment">// get a decoder:</span>
<a name="l00199"></a>00199   <a class="code" href="classKMime_1_1Decoder.html" title="Stateful decoder class, modelled after QTextDecoder.">Decoder</a> * dec = makeDecoder( withCRLF );
<a name="l00200"></a>00200   assert( dec );
<a name="l00201"></a>00201 
<a name="l00202"></a>00202   <span class="comment">// decode and check for output buffer overflow:</span>
<a name="l00203"></a>00203   <span class="keywordflow">while</span> ( !dec-&gt;<a class="code" href="classKMime_1_1Decoder.html#1991c45377e59be92f31284e473e3514" title="Decode a chunk of data, maintaining state information between calls.">decode</a>( scursor, send, dcursor, dend ) )
<a name="l00204"></a>00204     <span class="keywordflow">if</span> ( dcursor == dend ) {
<a name="l00205"></a>00205       <span class="keyword">delete</span> dec;
<a name="l00206"></a>00206       <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// not enough space in output buffer</span>
<a name="l00207"></a>00207     }
<a name="l00208"></a>00208 
<a name="l00209"></a>00209   <span class="comment">// finish and check for output buffer overflow:</span>
<a name="l00210"></a>00210   <span class="keywordflow">while</span> ( !dec-&gt;<a class="code" href="classKMime_1_1Decoder.html#b6cdf12608bb645002e72209507cf7d5" title="Call this method to finalize the output stream.">finish</a>( dcursor, dend ) )
<a name="l00211"></a>00211     <span class="keywordflow">if</span> ( dcursor == dend ) {
<a name="l00212"></a>00212       <span class="keyword">delete</span> dec;
<a name="l00213"></a>00213       <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// not enough space in output buffer</span>
<a name="l00214"></a>00214     }
<a name="l00215"></a>00215 
<a name="l00216"></a>00216   <span class="comment">// cleanup and return:</span>
<a name="l00217"></a>00217   <span class="keyword">delete</span> dec;
<a name="l00218"></a>00218   <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// successfully encoded.</span>
<a name="l00219"></a>00219 }
<a name="l00220"></a>00220 
<a name="l00221"></a>00221 <span class="comment">// write as much as possible off the output buffer. Return true if</span>
<a name="l00222"></a>00222 <span class="comment">// flushing was complete, false if some chars could not be flushed.</span>
<a name="l00223"></a><a class="code" href="classKMime_1_1Encoder.html#d2fe0ddc878eede44f9c43b88b81ae3b">00223</a> <span class="keywordtype">bool</span> <a class="code" href="classKMime_1_1Encoder.html#d2fe0ddc878eede44f9c43b88b81ae3b" title="Writes characters from the output buffer to the output stream.">Encoder::flushOutputBuffer</a>( <span class="keywordtype">char</span>* &amp; dcursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> dend ) {
<a name="l00224"></a>00224   <span class="keywordtype">int</span> i;
<a name="l00225"></a>00225   <span class="comment">// copy output buffer to output stream:</span>
<a name="l00226"></a>00226   <span class="keywordflow">for</span> ( i = 0 ; dcursor != dend &amp;&amp; i &lt; mOutputBufferCursor ; ++i )
<a name="l00227"></a>00227     *dcursor++ = mOutputBuffer[i];
<a name="l00228"></a>00228 
<a name="l00229"></a>00229   <span class="comment">// calculate the number of missing chars:</span>
<a name="l00230"></a>00230   <span class="keywordtype">int</span> numCharsLeft = mOutputBufferCursor - i;
<a name="l00231"></a>00231   <span class="comment">// push the remaining chars to the begin of the buffer:</span>
<a name="l00232"></a>00232   <span class="keywordflow">if</span> ( numCharsLeft )
<a name="l00233"></a>00233     qmemmove( mOutputBuffer, mOutputBuffer + i, numCharsLeft );
<a name="l00234"></a>00234   <span class="comment">// adjust cursor:</span>
<a name="l00235"></a>00235   mOutputBufferCursor = numCharsLeft;
<a name="l00236"></a>00236 
<a name="l00237"></a>00237   <span class="keywordflow">return</span> !numCharsLeft;
<a name="l00238"></a>00238 }
<a name="l00239"></a>00239 
<a name="l00240"></a>00240 
<a name="l00241"></a>00241 } <span class="comment">// namespace KMime</span>
</pre></div></div>
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