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/*************************************************
* Zlib Compressor Header File *
* (C) 1999-2007 The Botan Project *
*************************************************/
#ifndef BOTAN_EXT_ZLIB_H__
#define BOTAN_EXT_ZLIB_H__
#include <botan/filter.h>
namespace Botan {
/*************************************************
* Zlib Compression Filter *
*************************************************/
class Zlib_Compression : public Filter
{
public:
void write(const byte input[], u32bit length);
void start_msg();
void end_msg();
void flush();
Zlib_Compression(u32bit = 6);
~Zlib_Compression() { clear(); }
private:
void clear();
const u32bit level;
SecureVector<byte> buffer;
class Zlib_Stream* zlib;
};
/*************************************************
* Zlib Decompression Filter *
*************************************************/
class Zlib_Decompression : public Filter
{
public:
void write(const byte input[], u32bit length);
void start_msg();
void end_msg();
Zlib_Decompression();
~Zlib_Decompression() { clear(); }
private:
void clear();
SecureVector<byte> buffer;
class Zlib_Stream* zlib;
bool no_writes;
};
}
#endif
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