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libcryptopp-doc-5.2.1-2mdk.i586.rpm

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<h1>zlib.h</h1><pre class="fragment"><div>00001 <span class="preprocessor">#ifndef CRYPTOPP_ZLIB_H</span>
00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_ZLIB_H</span>
00003 <span class="preprocessor"></span>
00004 <span class="preprocessor">#include "adler32.h"</span>
00005 <span class="preprocessor">#include "zdeflate.h"</span>
00006 <span class="preprocessor">#include "zinflate.h"</span>
00007 
00008 NAMESPACE_BEGIN(CryptoPP)
00009 
00010 <span class="comment">/// ZLIB Compressor (RFC 1950)</span>
<a name="l00011"></a><a class="code" href="class_zlib_compressor.html">00011</a> <span class="comment"></span>class <a class="code" href="class_zlib_compressor.html">ZlibCompressor</a> : public <a class="code" href="class_deflator.html">Deflator</a>
00012 {
00013 <span class="keyword">public</span>:
00014         <a class="code" href="class_zlib_compressor.html">ZlibCompressor</a>(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> *attachment=NULL, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> deflateLevel=DEFAULT_DEFLATE_LEVEL, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> log2WindowSize=DEFAULT_LOG2_WINDOW_SIZE, <span class="keywordtype">bool</span> detectUncompressible=<span class="keyword">true</span>)
00015                 : Deflator(attachment, deflateLevel, log2WindowSize, detectUncompressible) {}
00016         <a class="code" href="class_zlib_compressor.html">ZlibCompressor</a>(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &amp;parameters, <a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> *attachment=NULL)
00017                 : Deflator(parameters, attachment) {}
00018 
00019         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> GetCompressionLevel() <span class="keyword">const</span>;
00020 
00021 <span class="keyword">protected</span>:
00022         <span class="keywordtype">void</span> WritePrestreamHeader();
00023         <span class="keywordtype">void</span> ProcessUncompressedData(<span class="keyword">const</span> byte *string, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length);
00024         <span class="keywordtype">void</span> WritePoststreamTail();
00025 
00026         <a class="code" href="class_adler32.html">Adler32</a> m_adler32;
00027 };
00028 <span class="comment"></span>
00029 <span class="comment">/// ZLIB Decompressor (RFC 1950)</span>
<a name="l00030"></a><a class="code" href="class_zlib_decompressor.html">00030</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_zlib_decompressor.html">ZlibDecompressor</a> : <span class="keyword">public</span> <a class="code" href="class_inflator.html">Inflator</a>
00031 {
00032 <span class="keyword">public</span>:
00033         <span class="keyword">typedef</span> Inflator::Err Err;
00034         <span class="keyword">class </span>HeaderErr : <span class="keyword">public</span> Err {<span class="keyword">public</span>: HeaderErr() : Err(INVALID_DATA_FORMAT, <span class="stringliteral">"ZlibDecompressor: header decoding error"</span>) {}};
00035         <span class="keyword">class </span>Adler32Err : <span class="keyword">public</span> Err {<span class="keyword">public</span>: Adler32Err() : Err(DATA_INTEGRITY_CHECK_FAILED, <span class="stringliteral">"ZlibDecompressor: ADLER32 check error"</span>) {}};
00036         <span class="keyword">class </span>UnsupportedAlgorithm : <span class="keyword">public</span> Err {<span class="keyword">public</span>: UnsupportedAlgorithm() : Err(INVALID_DATA_FORMAT, <span class="stringliteral">"ZlibDecompressor: unsupported algorithm"</span>) {}};
00037         <span class="keyword">class </span>UnsupportedPresetDictionary : <span class="keyword">public</span> Err {<span class="keyword">public</span>: UnsupportedPresetDictionary() : Err(INVALID_DATA_FORMAT, <span class="stringliteral">"ZlibDecompressor: unsupported preset dictionary"</span>) {}};
00038 <span class="comment"></span>
00039 <span class="comment">        /*! \param repeat decompress multiple compressed streams in series</span>
00040 <span class="comment">                \param autoSignalPropagation 0 to turn off MessageEnd signal</span>
00041 <span class="comment">        */</span>
00042         <a class="code" href="class_zlib_decompressor.html">ZlibDecompressor</a>(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> *attachment = NULL, <span class="keywordtype">bool</span> repeat = <span class="keyword">false</span>, <span class="keywordtype">int</span> autoSignalPropagation = -1);
00043         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> GetLog2WindowSize()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_log2WindowSize;}
00044 
00045 <span class="keyword">private</span>:
00046         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> MaxPrestreamHeaderSize()<span class="keyword"> const </span>{<span class="keywordflow">return</span> 2;}
00047         <span class="keywordtype">void</span> ProcessPrestreamHeader();
00048         <span class="keywordtype">void</span> ProcessDecompressedData(<span class="keyword">const</span> byte *string, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length);
00049         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> MaxPoststreamTailSize()<span class="keyword"> const </span>{<span class="keywordflow">return</span> 4;}
00050         <span class="keywordtype">void</span> ProcessPoststreamTail();
00051 
00052         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> m_log2WindowSize;
00053         <a class="code" href="class_adler32.html">Adler32</a> m_adler32;
00054 };
00055 
00056 NAMESPACE_END
00057 
00058 <span class="preprocessor">#endif</span>
</div></pre><hr size="1"><address style="align: right;"><small>Generated on Sun Nov 7 08:24:00 2004 for Crypto++ by
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