--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libphysfs/lzma/CPP/7zip/Archive/7z/7zIn.h	Mon Apr 10 12:06:43 2017 -0400
@@ -0,0 +1,235 @@
+// 7zIn.h
+
+#ifndef __7Z_IN_H
+#define __7Z_IN_H
+
+#include "../../../Common/MyCom.h"
+#include "../../IStream.h"
+#include "../../IPassword.h"
+#include "../../Common/CreateCoder.h"
+#include "../../Common/InBuffer.h"
+
+#include "7zItem.h"
+ 
+namespace NArchive {
+namespace N7z {
+  
+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 != kNumNoIndex)
+      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;
+  }
+  Byte ReadByte();
+  void ReadBytes(Byte *data, size_t size);
+  void SkeepData(UInt64 size);
+  void SkeepData();
+  UInt64 ReadNumber();
+  CNum ReadNum();
+  UInt32 ReadUInt32();
+  UInt64 ReadUInt64();
+  void ReadString(UString &s);
+};
+
+class CStreamSwitch;
+
+const UInt32 kHeaderSize = 32;
+
+class CInArchive
+{
+  friend class CStreamSwitch;
+
+  CMyComPtr<IInStream> _stream;
+
+  CObjectVector<CInByte2> _inByteVector;
+  CInByte2 *_inByteBack;
+ 
+  UInt64 _arhiveBeginStreamPosition;
+
+  Byte _header[kHeaderSize];
+
+  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);
+  
+  void ReadBytes(Byte *data, size_t size) { _inByteBack->ReadBytes(data, size); }
+  Byte ReadByte() { return _inByteBack->ReadByte(); }
+  UInt64 ReadNumber() { return _inByteBack->ReadNumber(); }
+  CNum ReadNum() { return _inByteBack->ReadNum(); }
+  UInt64 ReadID() { return _inByteBack->ReadNumber(); }
+  UInt32 ReadUInt32() { return _inByteBack->ReadUInt32(); }
+  UInt64 ReadUInt64() { return _inByteBack->ReadUInt64(); }
+  void SkeepData(UInt64 size) { _inByteBack->SkeepData(size); }
+  void SkeepData() { _inByteBack->SkeepData(); }
+  void WaitAttribute(UInt64 attribute);
+
+  void ReadArchiveProperties(CInArchiveInfo &archiveInfo);
+  void GetNextFolderItem(CFolder &itemInfo);
+  void ReadHashDigests(int numItems,
+      CRecordVector<bool> &digestsDefined, CRecordVector<UInt32> &digests);
+  
+  void ReadPackInfo(
+      UInt64 &dataOffset,
+      CRecordVector<UInt64> &packSizes,
+      CRecordVector<bool> &packCRCsDefined,
+      CRecordVector<UInt32> &packCRCs);
+  
+  void ReadUnPackInfo(
+      const CObjectVector<CByteBuffer> *dataVector,
+      CObjectVector<CFolder> &folders);
+  
+  void ReadSubStreamsInfo(
+      const CObjectVector<CFolder> &folders,
+      CRecordVector<CNum> &numUnPackStreamsInFolders,
+      CRecordVector<UInt64> &unPackSizes,
+      CRecordVector<bool> &digestsDefined, 
+      CRecordVector<UInt32> &digests);
+
+  void 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);
+
+
+  void ReadBoolVector(int numItems, CBoolVector &v);
+  void ReadBoolVector2(int numItems, CBoolVector &v);
+  void ReadTime(const CObjectVector<CByteBuffer> &dataVector,
+      CObjectVector<CFileItem> &files, UInt32 type);
+  HRESULT ReadAndDecodePackedStreams(
+      DECL_EXTERNAL_CODECS_LOC_VARS
+      UInt64 baseOffset, UInt64 &dataOffset,
+      CObjectVector<CByteBuffer> &dataVector
+      #ifndef _NO_CRYPTO
+      , ICryptoGetTextPassword *getTextPassword
+      #endif
+      );
+  HRESULT ReadHeader(
+      DECL_EXTERNAL_CODECS_LOC_VARS
+      CArchiveDatabaseEx &database
+      #ifndef _NO_CRYPTO
+      ,ICryptoGetTextPassword *getTextPassword
+      #endif
+      );
+  HRESULT ReadDatabase2(
+      DECL_EXTERNAL_CODECS_LOC_VARS
+      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(
+      DECL_EXTERNAL_CODECS_LOC_VARS
+      CArchiveDatabaseEx &database 
+      #ifndef _NO_CRYPTO
+      ,ICryptoGetTextPassword *getTextPassword
+      #endif
+      );
+};
+  
+}}
+  
+#endif