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// Sha1Reg.cpp
#include "StdAfx.h"
#include "../../C/Sha1.h"
#include "../Common/MyBuffer2.h"
#include "../Common/MyCom.h"
#include "../7zip/Common/RegisterCodec.h"
Z7_CLASS_IMP_COM_2(
CSha1Hasher
, IHasher
, ICompressSetCoderProperties
)
CAlignedBuffer1 _buf;
public:
Byte _mtDummy[1 << 7];
CSha1 *Sha() { return (CSha1 *)(void *)(Byte *)_buf; }
public:
CSha1Hasher():
_buf(sizeof(CSha1))
{
Sha1_SetFunction(Sha(), 0);
Sha1_InitState(Sha());
}
};
Z7_COM7F_IMF2(void, CSha1Hasher::Init())
{
Sha1_InitState(Sha());
}
Z7_COM7F_IMF2(void, CSha1Hasher::Update(const void *data, UInt32 size))
{
Sha1_Update(Sha(), (const Byte *)data, size);
}
Z7_COM7F_IMF2(void, CSha1Hasher::Final(Byte *digest))
{
Sha1_Final(Sha(), digest);
}
Z7_COM7F_IMF(CSha1Hasher::SetCoderProperties(const PROPID *propIDs, const PROPVARIANT *coderProps, UInt32 numProps))
{
unsigned algo = 0;
for (UInt32 i = 0; i < numProps; i++)
{
if (propIDs[i] == NCoderPropID::kDefaultProp)
{
const PROPVARIANT &prop = coderProps[i];
if (prop.vt != VT_UI4)
return E_INVALIDARG;
if (prop.ulVal > 2)
return E_NOTIMPL;
algo = (unsigned)prop.ulVal;
}
}
if (!Sha1_SetFunction(Sha(), algo))
return E_NOTIMPL;
return S_OK;
}
REGISTER_HASHER(CSha1Hasher, 0x201, "SHA1", SHA1_DIGEST_SIZE)
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