mirror of
https://github.com/kasmtech/KasmVNC.git
synced 2024-11-08 17:24:13 +01:00
259f1055cb
Provides safety against them accidentally becoming negative because of bugs in the calculations. Also does the same to CharArray and friends as they were strongly connection to the stream objects.
64 lines
1.5 KiB
C++
64 lines
1.5 KiB
C++
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
|
|
*
|
|
* This is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This software is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this software; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
|
* USA.
|
|
*/
|
|
|
|
//
|
|
// ZlibInStream streams from a compressed data stream ("underlying"),
|
|
// decompressing with zlib on the fly.
|
|
//
|
|
|
|
#ifndef __RDR_ZLIBINSTREAM_H__
|
|
#define __RDR_ZLIBINSTREAM_H__
|
|
|
|
#include <rdr/InStream.h>
|
|
|
|
struct z_stream_s;
|
|
|
|
namespace rdr {
|
|
|
|
class ZlibInStream : public InStream {
|
|
|
|
public:
|
|
|
|
ZlibInStream(size_t bufSize=0);
|
|
virtual ~ZlibInStream();
|
|
|
|
void setUnderlying(InStream* is, size_t bytesIn);
|
|
void flushUnderlying();
|
|
size_t pos();
|
|
void reset();
|
|
|
|
private:
|
|
|
|
void init();
|
|
void deinit();
|
|
|
|
size_t overrun(size_t itemSize, size_t nItems, bool wait);
|
|
bool decompress(bool wait);
|
|
|
|
InStream* underlying;
|
|
size_t bufSize;
|
|
size_t offset;
|
|
z_stream_s* zs;
|
|
size_t bytesIn;
|
|
U8* start;
|
|
};
|
|
|
|
} // end of namespace rdr
|
|
|
|
#endif
|