removed code duplication in socketpal.windows

Author: ovebastiansen

src/libraries/System.Net.Sockets/src/System/Net/Sockets/SocketPal.Windows.cs

@@ -452,76 +452,7 @@ public static unsafe IPPacketInformation GetIPPacketInformation(Interop.Winsock.
 
         public static unsafe SocketError ReceiveMessageFrom(Socket socket, SafeSocketHandle handle, byte[] buffer, int offset, int size, ref SocketFlags socketFlags, Internals.SocketAddress socketAddress, out Internals.SocketAddress receiveAddress, out IPPacketInformation ipPacketInformation, out int bytesTransferred)
         {
-            bool ipv4, ipv6;
-            Socket.GetIPProtocolInformation(socket.AddressFamily, socketAddress, out ipv4, out ipv6);
-
-            bytesTransferred = 0;
-            receiveAddress = socketAddress;
-            ipPacketInformation = default(IPPacketInformation);
-            fixed (byte* ptrBuffer = buffer)
-            fixed (byte* ptrSocketAddress = socketAddress.Buffer)
-            {
-                Interop.Winsock.WSAMsg wsaMsg;
-                wsaMsg.socketAddress = (IntPtr)ptrSocketAddress;
-                wsaMsg.addressLength = (uint)socketAddress.Size;
-                wsaMsg.flags = socketFlags;
-
-                WSABuffer wsaBuffer;
-                wsaBuffer.Length = size;
-                wsaBuffer.Pointer = (IntPtr)(ptrBuffer + offset);
-                wsaMsg.buffers = (IntPtr)(&wsaBuffer);
-                wsaMsg.count = 1;
-
-                if (ipv4)
-                {
-                    Interop.Winsock.ControlData controlBuffer;
-                    wsaMsg.controlBuffer.Pointer = (IntPtr)(&controlBuffer);
-                    wsaMsg.controlBuffer.Length = sizeof(Interop.Winsock.ControlData);
-
-                    if (socket.WSARecvMsgBlocking(
-                        handle,
-                        (IntPtr)(&wsaMsg),
-                        out bytesTransferred) == SocketError.SocketError)
-                    {
-                        return GetLastSocketError();
-                    }
-
-                    ipPacketInformation = GetIPPacketInformation(&controlBuffer);
-                }
-                else if (ipv6)
-                {
-                    Interop.Winsock.ControlDataIPv6 controlBuffer;
-                    wsaMsg.controlBuffer.Pointer = (IntPtr)(&controlBuffer);
-                    wsaMsg.controlBuffer.Length = sizeof(Interop.Winsock.ControlDataIPv6);
-
-                    if (socket.WSARecvMsgBlocking(
-                        handle,
-                        (IntPtr)(&wsaMsg),
-                        out bytesTransferred) == SocketError.SocketError)
-                    {
-                        return GetLastSocketError();
-                    }
-
-                    ipPacketInformation = GetIPPacketInformation(&controlBuffer);
-                }
-                else
-                {
-                    wsaMsg.controlBuffer.Pointer = IntPtr.Zero;
-                    wsaMsg.controlBuffer.Length = 0;
-
-                    if (socket.WSARecvMsgBlocking(
-                        handle,
-                        (IntPtr)(&wsaMsg),
-                        out bytesTransferred) == SocketError.SocketError)
-                    {
-                        return GetLastSocketError();
-                    }
-                }
-
-                socketFlags = wsaMsg.flags;
-            }
-
-            return SocketError.Success;
+            return ReceiveMessageFrom(socket, handle, new Span<byte>(buffer, offset, size), ref socketFlags, socketAddress, out receiveAddress, out ipPacketInformation, out bytesTransferred);
         }
 
         public static unsafe SocketError ReceiveMessageFrom(Socket socket, SafeSocketHandle handle, Span<byte> buffer, ref SocketFlags socketFlags, Internals.SocketAddress socketAddress, out Internals.SocketAddress receiveAddress, out IPPacketInformation ipPacketInformation, out int bytesTransferred)