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  1. /* Copyright (C) 2008-2016 Peter Palotas, Jeffrey Jangli, Alexandr Normuradov
  2. *
  3. * Permission is hereby granted, free of charge, to any person obtaining a copy
  4. * of this software and associated documentation files (the "Software"), to deal
  5. * in the Software without restriction, including without limitation the rights
  6. * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  7. * copies of the Software, and to permit persons to whom the Software is
  8. * furnished to do so, subject to the following conditions:
  9. *
  10. * The above copyright notice and this permission notice shall be included in
  11. * all copies or substantial portions of the Software.
  12. *
  13. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14. * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15. * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16. * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17. * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18. * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  19. * THE SOFTWARE.
  20. */
  21. using Microsoft.Win32.SafeHandles;
  22. using System.Runtime.InteropServices;
  23. using System.Security;
  24. namespace Alphaleonis.Win32.Filesystem
  25. {
  26. public static partial class File
  27. {
  28. /// <summary>[AlphaFS] Retrieves file information for the specified <see cref="SafeFileHandle"/>.</summary>
  29. /// <param name="handle">A <see cref="SafeFileHandle"/> connected to the open file from which to retrieve the information.</param>
  30. /// <returns>A <see cref="ByHandleFileInfo"/> object containing the requested information.</returns>
  31. [SecurityCritical]
  32. public static ByHandleFileInfo GetFileInfoByHandle(SafeFileHandle handle)
  33. {
  34. NativeMethods.IsValidHandle(handle);
  35. NativeMethods.BY_HANDLE_FILE_INFORMATION info;
  36. if (!NativeMethods.GetFileInformationByHandle(handle, out info))
  37. NativeError.ThrowException(Marshal.GetLastWin32Error());
  38. return new ByHandleFileInfo(info);
  39. }
  40. }
  41. }