--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libphysfs/lzma/CPP/7zip/Archive/7z/7zHeader.h	Mon Apr 10 12:06:43 2017 -0400
@@ -0,0 +1,96 @@
+// 7z/7zHeader.h
+
+#ifndef __7Z_HEADER_H
+#define __7Z_HEADER_H
+
+#include "../../../Common/Types.h"
+
+namespace NArchive {
+namespace N7z {
+
+const int kSignatureSize = 6;
+extern Byte kSignature[kSignatureSize];
+
+// #define _7Z_VOL
+// 7z-MultiVolume is not finished yet.
+// It can work already, but I still do not like some 
+// things of that new multivolume format.
+// So please keep it commented.
+
+#ifdef _7Z_VOL
+extern Byte kFinishSignature[kSignatureSize];
+#endif
+
+struct CArchiveVersion
+{
+  Byte Major;
+  Byte Minor;
+};
+
+const Byte kMajorVersion = 0;
+
+struct CStartHeader
+{
+  UInt64 NextHeaderOffset;
+  UInt64 NextHeaderSize;
+  UInt32 NextHeaderCRC;
+};
+
+const UInt32 kStartHeaderSize = 20;
+
+#ifdef _7Z_VOL
+struct CFinishHeader: public CStartHeader
+{
+  UInt64 ArchiveStartOffset;  // data offset from end if that struct
+  UInt64 AdditionalStartBlockSize; // start  signature & start header size
+};
+
+const UInt32 kFinishHeaderSize = kStartHeaderSize + 16;
+#endif
+
+namespace NID
+{
+  enum EEnum
+  {
+    kEnd,
+
+    kHeader,
+
+    kArchiveProperties,
+    
+    kAdditionalStreamsInfo,
+    kMainStreamsInfo,
+    kFilesInfo,
+    
+    kPackInfo,
+    kUnPackInfo,
+    kSubStreamsInfo,
+
+    kSize,
+    kCRC,
+
+    kFolder,
+
+    kCodersUnPackSize,
+    kNumUnPackStream,
+
+    kEmptyStream,
+    kEmptyFile,
+    kAnti,
+
+    kName,
+    kCreationTime,
+    kLastAccessTime,
+    kLastWriteTime,
+    kWinAttributes,
+    kComment,
+
+    kEncodedHeader,
+
+    kStartPos
+  };
+}
+
+}}
+
+#endif