1 files changed, 212 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/CPP/Windows/FileIO.h b/other-licenses/7zstub/src/CPP/Windows/FileIO.h
new file mode 100644
index 0000000000..e31bc20cc3
--- /dev/null
+++ b/other-licenses/7zstub/src/CPP/Windows/FileIO.h
@@ -0,0 +1,212 @@
+// Windows/FileIO.h
+
+#ifndef __WINDOWS_FILE_IO_H
+#define __WINDOWS_FILE_IO_H
+
+#include "../Common/MyWindows.h"
+
+#if defined(_WIN32) && !defined(UNDER_CE)
+#include <winioctl.h>
+#endif
+
+#include "../Common/MyString.h"
+#include "../Common/MyBuffer.h"
+
+#include "Defs.h"
+
+#define _my_IO_REPARSE_TAG_MOUNT_POINT  (0xA0000003L)
+#define _my_IO_REPARSE_TAG_SYMLINK      (0xA000000CL)
+
+#define _my_SYMLINK_FLAG_RELATIVE 1
+
+#define my_FSCTL_SET_REPARSE_POINT  CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 41, METHOD_BUFFERED, FILE_SPECIAL_ACCESS) // REPARSE_DATA_BUFFER
+#define my_FSCTL_GET_REPARSE_POINT  CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 42, METHOD_BUFFERED, FILE_ANY_ACCESS)     // REPARSE_DATA_BUFFER
+
+namespace NWindows {
+namespace NFile {
+
+#if defined(_WIN32) && !defined(UNDER_CE)
+bool FillLinkData(CByteBuffer &dest, const wchar_t *path, bool isSymLink);
+#endif
+
+struct CReparseShortInfo
+{
+  unsigned Offset;
+  unsigned Size;
+
+  bool Parse(const Byte *p, size_t size);
+};
+
+struct CReparseAttr
+{
+  UInt32 Tag;
+  UInt32 Flags;
+  UString SubsName;
+  UString PrintName;
+
+  CReparseAttr(): Tag(0), Flags(0) {}
+
+  // Parse()
+  // returns true and (errorCode = 0), if (correct MOUNT_POINT or SYMLINK)
+  // returns false and (errorCode = ERROR_REPARSE_TAG_MISMATCH), if not (MOUNT_POINT or SYMLINK)
+  bool Parse(const Byte *p, size_t size, DWORD &errorCode);
+
+  bool IsMountPoint() const { return Tag == _my_IO_REPARSE_TAG_MOUNT_POINT; } // it's Junction
+  bool IsSymLink() const { return Tag == _my_IO_REPARSE_TAG_SYMLINK; }
+  bool IsRelative() const { return Flags == _my_SYMLINK_FLAG_RELATIVE; }
+  // bool IsVolume() const;
+
+  bool IsOkNamePair() const;
+  UString GetPath() const;
+};
+
+namespace NIO {
+
+bool GetReparseData(CFSTR path, CByteBuffer &reparseData, BY_HANDLE_FILE_INFORMATION *fileInfo = NULL);
+bool SetReparseData(CFSTR path, bool isDir, const void *data, DWORD size);
+
+class CFileBase
+{
+protected:
+  HANDLE _handle;
+  
+  bool Create(CFSTR path, DWORD desiredAccess,
+      DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes);
+
+public:
+
+  bool DeviceIoControl(DWORD controlCode, LPVOID inBuffer, DWORD inSize,
+      LPVOID outBuffer, DWORD outSize, LPDWORD bytesReturned, LPOVERLAPPED overlapped = NULL) const
+  {
+    return BOOLToBool(::DeviceIoControl(_handle, controlCode, inBuffer, inSize,
+        outBuffer, outSize, bytesReturned, overlapped));
+  }
+
+  bool DeviceIoControlOut(DWORD controlCode, LPVOID outBuffer, DWORD outSize, LPDWORD bytesReturned) const
+  {
+    return DeviceIoControl(controlCode, NULL, 0, outBuffer, outSize, bytesReturned);
+  }
+
+  bool DeviceIoControlOut(DWORD controlCode, LPVOID outBuffer, DWORD outSize) const
+  {
+    DWORD bytesReturned;
+    return DeviceIoControlOut(controlCode, outBuffer, outSize, &bytesReturned);
+  }
+
+public:
+  #ifdef SUPPORT_DEVICE_FILE
+  bool IsDeviceFile;
+  bool SizeDefined;
+  UInt64 Size; // it can be larger than real available size
+  #endif
+
+  CFileBase(): _handle(INVALID_HANDLE_VALUE) {};
+  ~CFileBase() { Close(); }
+
+  bool Close() throw();
+
+  bool GetPosition(UInt64 &position) const throw();
+  bool GetLength(UInt64 &length) const throw();
+
+  bool Seek(Int64 distanceToMove, DWORD moveMethod, UInt64 &newPosition) const throw();
+  bool Seek(UInt64 position, UInt64 &newPosition) const throw();
+  bool SeekToBegin() const throw();
+  bool SeekToEnd(UInt64 &newPosition) const throw();
+  
+  bool GetFileInformation(BY_HANDLE_FILE_INFORMATION *info) const
+    { return BOOLToBool(GetFileInformationByHandle(_handle, info)); }
+
+  static bool GetFileInformation(CFSTR path, BY_HANDLE_FILE_INFORMATION *info)
+  {
+    NIO::CFileBase file;
+    if (!file.Create(path, 0, FILE_SHARE_READ, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS))
+      return false;
+    return file.GetFileInformation(info);
+  }
+};
+
+#ifndef UNDER_CE
+#define IOCTL_CDROM_BASE  FILE_DEVICE_CD_ROM
+#define IOCTL_CDROM_GET_DRIVE_GEOMETRY  CTL_CODE(IOCTL_CDROM_BASE, 0x0013, METHOD_BUFFERED, FILE_READ_ACCESS)
+// #define IOCTL_CDROM_MEDIA_REMOVAL  CTL_CODE(IOCTL_CDROM_BASE, 0x0201, METHOD_BUFFERED, FILE_READ_ACCESS)
+
+// IOCTL_DISK_GET_DRIVE_GEOMETRY_EX works since WinXP
+#define my_IOCTL_DISK_GET_DRIVE_GEOMETRY_EX  CTL_CODE(IOCTL_DISK_BASE, 0x0028, METHOD_BUFFERED, FILE_ANY_ACCESS)
+
+struct my_DISK_GEOMETRY_EX
+{
+  DISK_GEOMETRY Geometry;
+  LARGE_INTEGER DiskSize;
+  BYTE Data[1];
+};
+#endif
+
+class CInFile: public CFileBase
+{
+  #ifdef SUPPORT_DEVICE_FILE
+
+  #ifndef UNDER_CE
+  
+  bool GetGeometry(DISK_GEOMETRY *res) const
+    { return DeviceIoControlOut(IOCTL_DISK_GET_DRIVE_GEOMETRY, res, sizeof(*res)); }
+
+  bool GetGeometryEx(my_DISK_GEOMETRY_EX *res) const
+    { return DeviceIoControlOut(my_IOCTL_DISK_GET_DRIVE_GEOMETRY_EX, res, sizeof(*res)); }
+
+  bool GetCdRomGeometry(DISK_GEOMETRY *res) const
+    { return DeviceIoControlOut(IOCTL_CDROM_GET_DRIVE_GEOMETRY, res, sizeof(*res)); }
+  
+  bool GetPartitionInfo(PARTITION_INFORMATION *res)
+    { return DeviceIoControlOut(IOCTL_DISK_GET_PARTITION_INFO, LPVOID(res), sizeof(*res)); }
+  
+  #endif
+
+  void CorrectDeviceSize();
+  void CalcDeviceSize(CFSTR name);
+  
+  #endif
+
+public:
+  bool Open(CFSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes);
+  bool OpenShared(CFSTR fileName, bool shareForWrite);
+  bool Open(CFSTR fileName);
+
+  #ifndef UNDER_CE
+
+  bool OpenReparse(CFSTR fileName)
+  {
+    // 17.02 fix: to support Windows XP compatibility junctions:
+    //   we use Create() with (desiredAccess = 0) instead of Open() with GENERIC_READ
+    return
+        Create(fileName, 0,
+        // Open(fileName,
+        FILE_SHARE_READ, OPEN_EXISTING,
+        FILE_FLAG_OPEN_REPARSE_POINT | FILE_FLAG_BACKUP_SEMANTICS);
+  }
+  
+  #endif
+
+  bool Read1(void *data, UInt32 size, UInt32 &processedSize) throw();
+  bool ReadPart(void *data, UInt32 size, UInt32 &processedSize) throw();
+  bool Read(void *data, UInt32 size, UInt32 &processedSize) throw();
+};
+
+class COutFile: public CFileBase
+{
+public:
+  bool Open(CFSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes);
+  bool Open(CFSTR fileName, DWORD creationDisposition);
+  bool Create(CFSTR fileName, bool createAlways);
+  bool CreateAlways(CFSTR fileName, DWORD flagsAndAttributes);
+
+  bool SetTime(const FILETIME *cTime, const FILETIME *aTime, const FILETIME *mTime) throw();
+  bool SetMTime(const FILETIME *mTime) throw();
+  bool WritePart(const void *data, UInt32 size, UInt32 &processedSize) throw();
+  bool Write(const void *data, UInt32 size, UInt32 &processedSize) throw();
+  bool SetEndOfFile() throw();
+  bool SetLength(UInt64 length) throw();
+};
+
+}}}
+
+#endif