/// <summary> /// Convert a DOS filename to an NT filename and get as an ObjectAttributes structure /// </summary> /// <param name="filename">The filename</param> /// <returns>The object attributes</returns> public static ObjectAttributes DosFileNameToObjectAttributes(string filename) { if (filename == null) { throw new ArgumentNullException("filename"); } UnicodeStringOut nt_name = new UnicodeStringOut(); RtlRelativeName relative_name = new RtlRelativeName(); try { NtRtl.RtlDosPathNameToRelativeNtPathName_U_WithStatus(filename, out nt_name, out IntPtr short_path, relative_name).ToNtException(); if (relative_name.RelativeName.Buffer != IntPtr.Zero) { return new ObjectAttributes(relative_name.RelativeName.ToString(), AttributeFlags.CaseInsensitive, new SafeKernelObjectHandle(relative_name.ContainingDirectory, false), null, null); } else { return new ObjectAttributes(nt_name.ToString(), AttributeFlags.CaseInsensitive); } } finally { if (nt_name.Buffer != IntPtr.Zero) { NtRtl.RtlFreeUnicodeString(ref nt_name); } if (relative_name.RelativeName.Buffer != IntPtr.Zero) { NtRtl.RtlReleaseRelativeName(relative_name); } } }
/// <summary> /// Convert a DOS filename to an NT filename and get as an ObjectAttributes structure /// </summary> /// <param name="filename">The DOS filename.</param> /// <param name="attributes">The object attribute flags.</param> /// <param name="sqos">An optional security quality of service.</param> /// <param name="security_descriptor">An optional security descriptor.</param> /// <param name="throw_on_error">True to throw on error.</param> /// <returns>The object attributes</returns> public static NtResult <ObjectAttributes> DosFileNameToObjectAttributes(string filename, AttributeFlags attributes, SecurityQualityOfService sqos, SecurityDescriptor security_descriptor, bool throw_on_error) { if (filename == null) { throw new ArgumentNullException("filename"); } UnicodeStringOut nt_name = new UnicodeStringOut(); RtlRelativeName relative_name = new RtlRelativeName(); try { NtStatus status = NtRtl.RtlDosPathNameToRelativeNtPathName_U_WithStatus(filename, out nt_name, out IntPtr short_path, relative_name); if (!status.IsSuccess()) { return(status.CreateResultFromError <ObjectAttributes>(throw_on_error)); } string final_name; SafeKernelObjectHandle root = SafeKernelObjectHandle.Null; if (relative_name.RelativeName.Buffer != IntPtr.Zero) { final_name = relative_name.RelativeName.ToString(); root = new SafeKernelObjectHandle(relative_name.ContainingDirectory, false); } else { final_name = nt_name.ToString(); } return(status.CreateResult(false, () => new ObjectAttributes(final_name, attributes, root, sqos, security_descriptor))); } finally { if (nt_name.Buffer != IntPtr.Zero) { NtRtl.RtlFreeUnicodeString(ref nt_name); } if (relative_name.RelativeName.Buffer != IntPtr.Zero) { NtRtl.RtlReleaseRelativeName(relative_name); } } }
public static extern bool RtlReleaseRelativeName([In, Out] RtlRelativeName RelativeName);
public static extern NtStatus RtlDosPathNameToRelativeNtPathName_U_WithStatus( string DosFileName, out UnicodeStringOut NtFileName, out IntPtr ShortPath, [Out] RtlRelativeName RelativeName );