static HRESULT UnpackData(IInStream *inStream, const CResource &resource, bool lzxMode, CByteBuffer &buf, Byte *digest)
{
size_t size = (size_t)resource.UnpackSize;
if (size != resource.UnpackSize)
return E_OUTOFMEMORY;
buf.Free();
buf.SetCapacity(size);
CSequentialOutStreamImp2 *outStreamSpec = new CSequentialOutStreamImp2();
CMyComPtr<ISequentialOutStream> outStream = outStreamSpec;
outStreamSpec->Init((Byte *)buf, size);
CUnpacker unpacker;
return unpacker.Unpack(inStream, resource, lzxMode, outStream, NULL, digest);
}
HRESULT CInArchive::ReadAndDecodePackedStreams(
DECL_EXTERNAL_CODECS_LOC_VARS
UInt64 baseOffset,
UInt64 &dataOffset, CObjectVector<CByteBuffer> &dataVector
#ifndef _NO_CRYPTO
, ICryptoGetTextPassword *getTextPassword, bool &passwordIsDefined
#endif
)
{
CRecordVector<UInt64> packSizes;
CRecordVector<bool> packCRCsDefined;
CRecordVector<UInt32> packCRCs;
CObjectVector<CFolder> folders;
CRecordVector<CNum> numUnpackStreamsInFolders;
CRecordVector<UInt64> unpackSizes;
CRecordVector<bool> digestsDefined;
CRecordVector<UInt32> digests;
ReadStreamsInfo(NULL,
dataOffset,
packSizes,
packCRCsDefined,
packCRCs,
folders,
numUnpackStreamsInFolders,
unpackSizes,
digestsDefined,
digests);
// db.ArchiveInfo.DataStartPosition2 += db.ArchiveInfo.StartPositionAfterHeader;
CNum packIndex = 0;
CDecoder decoder(
#ifdef _ST_MODE
false
#else
true
#endif
);
UInt64 dataStartPos = baseOffset + dataOffset;
for (int i = 0; i < folders.Size(); i++)
{
const CFolder &folder = folders[i];
dataVector.Add(CByteBuffer());
CByteBuffer &data = dataVector.Back();
UInt64 unpackSize64 = folder.GetUnpackSize();
size_t unpackSize = (size_t)unpackSize64;
if (unpackSize != unpackSize64)
ThrowUnsupported();
data.SetCapacity(unpackSize);
CSequentialOutStreamImp2 *outStreamSpec = new CSequentialOutStreamImp2;
CMyComPtr<ISequentialOutStream> outStream = outStreamSpec;
outStreamSpec->Init(data, unpackSize);
HRESULT result = decoder.Decode(
EXTERNAL_CODECS_LOC_VARS
_stream, dataStartPos,
&packSizes[packIndex], folder, outStream, NULL
#ifndef _NO_CRYPTO
, getTextPassword, passwordIsDefined
#endif
#ifdef COMPRESS_MT
, false, 1
#endif
);
RINOK(result);
if (folder.UnpackCRCDefined)
if (CrcCalc(data, unpackSize) != folder.UnpackCRC)
ThrowIncorrect();
for (int j = 0; j < folder.PackStreams.Size(); j++)
{
UInt64 packSize = packSizes[packIndex++];
dataStartPos += packSize;
HeadersSize += packSize;
}
}
return S_OK;
}
