diff options
Diffstat (limited to 'other-licenses/7zstub/src/7zip/Archive/7z/7zIn.h')
| -rw-r--r-- | other-licenses/7zstub/src/7zip/Archive/7z/7zIn.h | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/7zip/Archive/7z/7zIn.h b/other-licenses/7zstub/src/7zip/Archive/7z/7zIn.h new file mode 100644 index 000000000..a6c5ef032 --- /dev/null +++ b/other-licenses/7zstub/src/7zip/Archive/7z/7zIn.h @@ -0,0 +1,288 @@ +// 7zIn.h
+
+#ifndef __7Z_IN_H
+#define __7Z_IN_H
+
+#include "../../IStream.h"
+#include "../../IPassword.h"
+#include "../../../Common/MyCom.h"
+#include "../../Common/InBuffer.h"
+
+#include "7zHeader.h"
+#include "7zItem.h"
+
+namespace NArchive {
+namespace N7z {
+
+class CInArchiveException
+{
+public:
+ enum CCauseType
+ {
+ kUnsupportedVersion = 0,
+ kUnexpectedEndOfArchive = 0,
+ kIncorrectHeader,
+ } Cause;
+ CInArchiveException(CCauseType cause);
+};
+
+struct CInArchiveInfo
+{
+ CArchiveVersion Version;
+ UInt64 StartPosition;
+ UInt64 StartPositionAfterHeader;
+ UInt64 DataStartPosition;
+ UInt64 DataStartPosition2;
+ CRecordVector<UInt64> FileInfoPopIDs;
+ void Clear()
+ {
+ FileInfoPopIDs.Clear();
+ }
+};
+
+
+struct CArchiveDatabaseEx: public CArchiveDatabase
+{
+ CInArchiveInfo ArchiveInfo;
+ CRecordVector<UInt64> PackStreamStartPositions;
+ CRecordVector<CNum> FolderStartPackStreamIndex;
+ CRecordVector<CNum> FolderStartFileIndex;
+ CRecordVector<CNum> FileIndexToFolderIndexMap;
+
+ void Clear()
+ {
+ CArchiveDatabase::Clear();
+ ArchiveInfo.Clear();
+ PackStreamStartPositions.Clear();
+ FolderStartPackStreamIndex.Clear();
+ FolderStartFileIndex.Clear();
+ FileIndexToFolderIndexMap.Clear();
+ }
+
+ void FillFolderStartPackStream();
+ void FillStartPos();
+ void FillFolderStartFileIndex();
+
+ void Fill()
+ {
+ FillFolderStartPackStream();
+ FillStartPos();
+ FillFolderStartFileIndex();
+ }
+
+ UInt64 GetFolderStreamPos(int folderIndex, int indexInFolder) const
+ {
+ return ArchiveInfo.DataStartPosition +
+ PackStreamStartPositions[FolderStartPackStreamIndex[folderIndex] +
+ indexInFolder];
+ }
+
+ UInt64 GetFolderFullPackSize(int folderIndex) const
+ {
+ CNum packStreamIndex = FolderStartPackStreamIndex[folderIndex];
+ const CFolder &folder = Folders[folderIndex];
+ UInt64 size = 0;
+ for (int i = 0; i < folder.PackStreams.Size(); i++)
+ size += PackSizes[packStreamIndex + i];
+ return size;
+ }
+
+ UInt64 GetFolderPackStreamSize(int folderIndex, int streamIndex) const
+ {
+ return PackSizes[FolderStartPackStreamIndex[folderIndex] + streamIndex];
+ }
+
+ UInt64 GetFilePackSize(CNum fileIndex) const
+ {
+ CNum folderIndex = FileIndexToFolderIndexMap[fileIndex];
+ if (folderIndex >= 0)
+ {
+ if (FolderStartFileIndex[folderIndex] == fileIndex)
+ return GetFolderFullPackSize(folderIndex);
+ }
+ return 0;
+ }
+};
+
+class CInByte2
+{
+ const Byte *_buffer;
+ size_t _size;
+ size_t _pos;
+public:
+ void Init(const Byte *buffer, size_t size)
+ {
+ _buffer = buffer;
+ _size = size;
+ _pos = 0;
+ }
+ bool ReadByte(Byte &b)
+ {
+ if(_pos >= _size)
+ return false;
+ b = _buffer[_pos++];
+ return true;
+ }
+ void ReadBytes(void *data, size_t size, size_t &processedSize)
+ {
+ for(processedSize = 0; processedSize < size && _pos < _size; processedSize++)
+ ((Byte *)data)[processedSize] = _buffer[_pos++];
+ }
+
+ bool ReadBytes(void *data, size_t size)
+ {
+ size_t processedSize;
+ ReadBytes(data, size, processedSize);
+ return (processedSize == size);
+ }
+
+ size_t GetProcessedSize() const { return _pos; }
+};
+
+class CStreamSwitch;
+class CInArchive
+{
+ friend class CStreamSwitch;
+
+ CMyComPtr<IInStream> _stream;
+ #ifdef _7Z_VOL
+ bool _finishSignature;
+ #endif
+
+ CObjectVector<CInByte2> _inByteVector;
+ CInByte2 *_inByteBack;
+
+ UInt64 _arhiveBeginStreamPosition;
+ UInt64 _position;
+
+ void AddByteStream(const Byte *buffer, size_t size)
+ {
+ _inByteVector.Add(CInByte2());
+ _inByteBack = &_inByteVector.Back();
+ _inByteBack->Init(buffer, size);
+ }
+
+ void DeleteByteStream()
+ {
+ _inByteVector.DeleteBack();
+ if (!_inByteVector.IsEmpty())
+ _inByteBack = &_inByteVector.Back();
+ }
+
+private:
+ HRESULT FindAndReadSignature(IInStream *stream, const UInt64 *searchHeaderSizeLimit); // S_FALSE means is not archive
+ #ifdef _7Z_VOL
+ HRESULT FindFinishSignature(IInStream *stream, const UInt64 *searchHeaderSizeLimit); // S_FALSE means is not archive
+ #endif
+
+ HRESULT ReadFileNames(CObjectVector<CFileItem> &files);
+
+ HRESULT ReadDirect(IInStream *stream, void *data, UInt32 size,
+ UInt32 *processedSize);
+ HRESULT ReadDirect(void *data, UInt32 size, UInt32 *processedSize);
+ HRESULT SafeReadDirect(void *data, UInt32 size);
+ HRESULT SafeReadDirectByte(Byte &b);
+ HRESULT SafeReadDirectUInt32(UInt32 &value);
+ HRESULT SafeReadDirectUInt64(UInt64 &value);
+
+ HRESULT ReadBytes(void *data, size_t size)
+ {
+ if (!_inByteBack->ReadBytes(data, size))
+ return E_FAIL;
+ return S_OK;
+ }
+
+ HRESULT ReadByte(Byte &b)
+ {
+ if (!_inByteBack->ReadByte(b))
+ return E_FAIL;
+ return S_OK;
+ }
+
+ HRESULT ReadWideCharLE(wchar_t &c)
+ {
+ Byte b1;
+ if (!_inByteBack->ReadByte(b1))
+ return E_FAIL;
+ Byte b2;
+ if (!_inByteBack->ReadByte(b2))
+ return E_FAIL;
+ c = (wchar_t(b2) << 8) + b1;
+ return S_OK;
+ }
+
+ HRESULT ReadNumber(UInt64 &value);
+ HRESULT ReadNum(CNum &value);
+ HRESULT ReadID(UInt64 &value) { return ReadNumber(value); }
+ HRESULT ReadUInt32(UInt32 &value);
+ HRESULT ReadUInt64(UInt64 &value);
+
+ HRESULT SkeepData(UInt64 size);
+ HRESULT SkeepData();
+ HRESULT WaitAttribute(UInt64 attribute);
+
+ HRESULT ReadArchiveProperties(CInArchiveInfo &archiveInfo);
+ HRESULT GetNextFolderItem(CFolder &itemInfo);
+ HRESULT ReadHashDigests(int numItems,
+ CRecordVector<bool> &digestsDefined, CRecordVector<UInt32> &digests);
+
+ HRESULT ReadPackInfo(
+ UInt64 &dataOffset,
+ CRecordVector<UInt64> &packSizes,
+ CRecordVector<bool> &packCRCsDefined,
+ CRecordVector<UInt32> &packCRCs);
+
+ HRESULT ReadUnPackInfo(
+ const CObjectVector<CByteBuffer> *dataVector,
+ CObjectVector<CFolder> &folders);
+
+ HRESULT ReadSubStreamsInfo(
+ const CObjectVector<CFolder> &folders,
+ CRecordVector<CNum> &numUnPackStreamsInFolders,
+ CRecordVector<UInt64> &unPackSizes,
+ CRecordVector<bool> &digestsDefined,
+ CRecordVector<UInt32> &digests);
+
+ HRESULT ReadStreamsInfo(
+ const CObjectVector<CByteBuffer> *dataVector,
+ UInt64 &dataOffset,
+ CRecordVector<UInt64> &packSizes,
+ CRecordVector<bool> &packCRCsDefined,
+ CRecordVector<UInt32> &packCRCs,
+ CObjectVector<CFolder> &folders,
+ CRecordVector<CNum> &numUnPackStreamsInFolders,
+ CRecordVector<UInt64> &unPackSizes,
+ CRecordVector<bool> &digestsDefined,
+ CRecordVector<UInt32> &digests);
+
+
+ HRESULT GetNextFileItem(CFileItem &itemInfo);
+ HRESULT ReadBoolVector(int numItems, CBoolVector &v);
+ HRESULT ReadBoolVector2(int numItems, CBoolVector &v);
+ HRESULT ReadTime(const CObjectVector<CByteBuffer> &dataVector,
+ CObjectVector<CFileItem> &files, UInt64 type);
+ HRESULT ReadAndDecodePackedStreams(UInt64 baseOffset, UInt64 &dataOffset,
+ CObjectVector<CByteBuffer> &dataVector
+ #ifndef _NO_CRYPTO
+ , ICryptoGetTextPassword *getTextPassword
+ #endif
+ );
+ HRESULT ReadHeader(CArchiveDatabaseEx &database
+ #ifndef _NO_CRYPTO
+ ,ICryptoGetTextPassword *getTextPassword
+ #endif
+ );
+public:
+ HRESULT Open(IInStream *stream, const UInt64 *searchHeaderSizeLimit); // S_FALSE means is not archive
+ void Close();
+
+ HRESULT ReadDatabase(CArchiveDatabaseEx &database
+ #ifndef _NO_CRYPTO
+ ,ICryptoGetTextPassword *getTextPassword
+ #endif
+ );
+};
+
+}}
+
+#endif
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