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This commit is contained in:
Igor Pavlov
2003-12-11 00:00:00 +00:00
committed by Kornel Lesiński
commit 8c1b5c7b7e
982 changed files with 118799 additions and 0 deletions
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64
7zip/Archive/Rar/RarHeader.cpp Executable file
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// Archive::Rar::Headers.cpp
#include "StdAfx.h"
#include "RarHeader.h"
#include "Common/CRC.h"
static void UpdateCRCBytesWithoutStartBytes(CCRC &crc, const void *data,
UINT32 size, UINT32 exludeSize)
{
crc.Update(((const BYTE *)data) + exludeSize, size - exludeSize);
}
namespace NArchive{
namespace NRar{
namespace NHeader{
BYTE kMarker[kMarkerSize] = {0x52 + 1, 0x61, 0x72, 0x21, 0x1a, 0x07, 0x00};
class CMarkerInitializer
{
public:
CMarkerInitializer() { kMarker[0]--; };
};
static CMarkerInitializer aMarkerInitializer;
namespace NArchive
{
UINT16 CBlock::GetRealCRC() const
{
CCRC crc;
UpdateCRCBytesWithoutStartBytes(crc, this,
sizeof(*this), sizeof(CRC));
return UINT16(crc.GetDigest());
}
}
namespace NFile
{
/*
UINT16 CBlock32::GetRealCRC(const void *aName, UINT32 aNameSize,
bool anExtraDataDefined, BYTE *anExtraData) const
{
CCRC crc;
UpdateCRCBytesWithoutStartBytes(crc, this,
sizeof(*this), sizeof(HeadCRC));
crc.Update(aName, aNameSize);
if (anExtraDataDefined)
crc.Update(anExtraData, 8);
return UINT16(crc.GetDigest());
}
UINT16 CBlock64::GetRealCRC(const void *aName, UINT32 aNameSize) const
{
CCRC crc;
UpdateCRCBytesWithoutStartBytes(crc, this,
sizeof(*this), sizeof(HeadCRC));
crc.Update(aName, aNameSize);
return UINT16(crc.GetDigest());
}
*/
}
}}}