4.52 beta

CPP/7zip/Archive/Com/ComIn.h

@@ -0,0 +1,106 @@
+// Archive/ComIn.h
+
+#ifndef __ARCHIVE_COM_IN_H
+#define __ARCHIVE_COM_IN_H
+
+#include "Common/MyString.h"
+#include "Common/Buffer.h"
+
+namespace NArchive {
+namespace NCom {
+
+struct CUInt32Buf
+{
+  UInt32 *_buf;
+public:
+  CUInt32Buf(): _buf(0) {}
+  ~CUInt32Buf() { Free(); }
+  void Free();
+  bool Allocate(UInt32 numItems);
+  operator UInt32 *() const { return _buf; };
+};
+
+namespace NFatID
+{
+  const UInt32 kFree       = 0xFFFFFFFF;
+  const UInt32 kEndOfChain = 0xFFFFFFFE;
+  const UInt32 kFatSector  = 0xFFFFFFFD;
+  const UInt32 kMatSector  = 0xFFFFFFFC;
+  const UInt32 kMaxValue   = 0xFFFFFFFA;
+}
+
+namespace NItemType
+{
+  const Byte kEmpty = 0;
+  const Byte kStorage = 1;
+  const Byte kStream = 2;
+  const Byte kLockBytes = 3;
+  const Byte kProperty = 4;
+  const Byte kRootStorage = 5;
+}
+
+const UInt32 kNameSizeMax = 64;
+
+struct CItem
+{
+  Byte Name[kNameSizeMax];
+  // UInt16 NameSize;
+  // UInt32 Flags;
+  FILETIME CreationTime;
+  FILETIME LastWriteTime;
+  UInt64 Size;
+  UInt32 LeftDid;
+  UInt32 RightDid;
+  UInt32 SonDid;
+  UInt32 Sid;
+  Byte Type;
+
+  bool IsEmpty() const { return Type == NItemType::kEmpty; }
+  bool IsDir() const { return Type == NItemType::kStorage || Type == NItemType::kRootStorage; }
+};
+
+struct CRef
+{
+  int Parent;
+  UInt32 Did;
+};
+
+class CDatabase
+{
+public:
+  HRESULT AddNode(int parent, UInt32 did);
+
+  CUInt32Buf Fat;
+  UInt32 FatSize;
+  
+  CUInt32Buf MiniSids;
+  UInt32 NumSectorsInMiniStream;
+
+  CUInt32Buf Mat;
+  UInt32 MatSize;
+
+  CObjectVector<CItem> Items;
+  CRecordVector<CRef> Refs;
+
+  UInt32 LongStreamMinSize;
+  int SectorSizeBits;
+  int MiniSectorSizeBits;
+
+  void Clear()
+  {
+    Fat.Free();
+    MiniSids.Free();
+    Mat.Free();
+    Items.Clear();
+    Refs.Clear();
+  }
+
+  bool IsLargeStream(UInt64 size) { return size >= LongStreamMinSize; }
+  UString GetItemPath(UInt32 index) const;
+};
+
+HRESULT OpenArchive(IInStream *inStream, CDatabase &database);
+
+}}
+  
+#endif