diff -r ea891871f481 -r bb5522e88ab2 misc/libphysfs/lzma/CPP/7zip/UI/Common/OpenArchive.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libphysfs/lzma/CPP/7zip/UI/Common/OpenArchive.h	Mon Apr 10 12:06:43 2017 -0400
@@ -0,0 +1,130 @@
+// OpenArchive.h
+
+#ifndef __OPENARCHIVE_H
+#define __OPENARCHIVE_H
+
+#include "Common/MyString.h"
+#include "Windows/FileFind.h"
+
+#include "../../Archive/IArchive.h"
+#include "LoadCodecs.h"
+#include "ArchiveOpenCallback.h"
+
+HRESULT GetArchiveItemPath(IInArchive *archive, UInt32 index, UString &result);
+HRESULT GetArchiveItemPath(IInArchive *archive, UInt32 index, const UString &defaultName, UString &result);
+HRESULT GetArchiveItemFileTime(IInArchive *archive, UInt32 index, 
+    const FILETIME &defaultFileTime, FILETIME &fileTime);
+HRESULT IsArchiveItemProp(IInArchive *archive, UInt32 index, PROPID propID, bool &result);
+HRESULT IsArchiveItemFolder(IInArchive *archive, UInt32 index, bool &result);
+HRESULT IsArchiveItemAnti(IInArchive *archive, UInt32 index, bool &result);
+
+struct ISetSubArchiveName
+{
+  virtual void SetSubArchiveName(const wchar_t *name) = 0;
+};
+
+HRESULT OpenArchive(
+    CCodecs *codecs,
+    IInStream *inStream,
+    const UString &fileName, 
+    IInArchive **archiveResult, 
+    int &formatIndex,
+    UString &defaultItemName,
+    IArchiveOpenCallback *openArchiveCallback);
+
+HRESULT OpenArchive(
+    CCodecs *codecs,
+    const UString &filePath, 
+    IInArchive **archive, 
+    int &formatIndex,
+    UString &defaultItemName,
+    IArchiveOpenCallback *openArchiveCallback);
+
+HRESULT OpenArchive(
+    CCodecs *codecs,
+    const UString &filePath, 
+    IInArchive **archive0, 
+    IInArchive **archive1, 
+    int &formatIndex0,
+    int &formatIndex1,
+    UString &defaultItemName0,
+    UString &defaultItemName1,
+    IArchiveOpenCallback *openArchiveCallback);
+
+
+HRESULT ReOpenArchive(IInArchive *archive, const UString &fileName, IArchiveOpenCallback *openArchiveCallback);
+
+HRESULT MyOpenArchive(
+    CCodecs *codecs,
+    const UString &archiveName, 
+    IInArchive **archive,
+    UString &defaultItemName,
+    IOpenCallbackUI *openCallbackUI);
+
+HRESULT MyOpenArchive(
+    CCodecs *codecs,
+    const UString &archiveName, 
+    IInArchive **archive0,
+    IInArchive **archive1,
+    UString &defaultItemName0,
+    UString &defaultItemName1,
+    UStringVector &volumePaths,
+    UInt64 &volumesSize,
+    IOpenCallbackUI *openCallbackUI);
+
+struct CArchiveLink
+{
+  CMyComPtr<IInArchive> Archive0;
+  CMyComPtr<IInArchive> Archive1;
+  UString DefaultItemName0;
+  UString DefaultItemName1;
+
+  int FormatIndex0;
+  int FormatIndex1;
+  
+  UStringVector VolumePaths;
+
+  UInt64 VolumesSize;
+
+  int GetNumLevels() const
+  { 
+    int result = 0;
+    if (Archive0)
+    {
+      result++;
+      if (Archive1)
+        result++;
+    }
+    return result;
+  }
+
+  bool IsOpen;
+
+  CArchiveLink(): IsOpen(false), VolumesSize(0) {};
+
+  IInArchive *GetArchive() { return Archive1 != 0 ? Archive1: Archive0; }
+  UString GetDefaultItemName()  { return Archive1 != 0 ? DefaultItemName1: DefaultItemName0; }
+  int GetArchiverIndex() const { return Archive1 != 0 ? FormatIndex1: FormatIndex0; }
+  HRESULT Close();
+  void Release();
+};
+
+HRESULT OpenArchive(
+    CCodecs *codecs,
+    const UString &archiveName, 
+    CArchiveLink &archiveLink,
+    IArchiveOpenCallback *openCallback);
+
+HRESULT MyOpenArchive(
+    CCodecs *codecs,
+    const UString &archiveName, 
+    CArchiveLink &archiveLink,
+    IOpenCallbackUI *openCallbackUI);
+
+HRESULT ReOpenArchive(
+    CCodecs *codecs,
+    CArchiveLink &archiveLink, 
+    const UString &fileName);
+
+#endif
+