1 files changed, 22 insertions, 0 deletions

diff --git a/src/dtf/WixToolset.Dtf.Compression/SafeNativeMethods.cs b/src/dtf/WixToolset.Dtf.Compression/SafeNativeMethods.cs
new file mode 100644
index 00000000..1829ba81
--- /dev/null
+++ b/src/dtf/WixToolset.Dtf.Compression/SafeNativeMethods.cs
@@ -0,0 +1,22 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolset.Dtf.Compression
+{
+    using System;
+    using System.Security;
+    using System.Runtime.InteropServices;
+
+    [SuppressUnmanagedCodeSecurity]
+    internal static class SafeNativeMethods
+    {
+        [DllImport("kernel32.dll", SetLastError = true)]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        internal static extern bool DosDateTimeToFileTime(
+            short wFatDate, short wFatTime, out long fileTime);
+
+        [DllImport("kernel32.dll", SetLastError = true)]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        internal static extern bool FileTimeToDosDateTime(
+            ref long fileTime, out short wFatDate, out short wFatTime);
+    }
+}