Imported Upstream version 5.18.0.142

Former-commit-id: 7467d4b717762eeaf652d77f1486dd11ffb1ff1f

mcs/class/System/Mono.AppleTls/X509PalImpl.Apple.cs

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+//
+// X509PalImpl.Apple.cs
+//
+// Author:
+//       Martin Baulig <mabaul@microsoft.com>
+//
+// Copyright (c) 2018 Xamarin, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+#if MONO_FEATURE_APPLETLS || MONO_FEATURE_APPLE_X509
+using System;
+using System.Security.Cryptography;
+using System.Security.Cryptography.X509Certificates;
+using Microsoft.Win32.SafeHandles;
+using XamMac.CoreFoundation;
+
+namespace Mono.AppleTls
+{
+	class X509PalImplApple : X509PalImpl
+	{
+		public override X509CertificateImpl Import (byte[] data)
+		{
+			data = ConvertData (data);
+
+			var handle = CFHelpers.CreateCertificateFromData (data);
+			if (handle != IntPtr.Zero)
+				return new X509CertificateImplApple (handle, true);
+
+			return null;
+		}
+
+		public override X509Certificate2Impl Import (
+			byte[] data, SafePasswordHandle password, X509KeyStorageFlags keyStorageFlags)
+		{
+			return null;
+		}
+
+		public override X509Certificate2Impl Import (X509Certificate cert)
+		{
+			return null;
+		}
+	}
+}
+#endif