diff --git a/core/java/android/net/Network.java b/core/java/android/net/Network.java index e489e052d9..64516e62d1 100644 --- a/core/java/android/net/Network.java +++ b/core/java/android/net/Network.java @@ -94,11 +94,26 @@ public class Network implements Parcelable { mNetId = netId; } + private void connectToHost(Socket socket, String host, int port) throws IOException { + // Lookup addresses only on this Network. + InetAddress[] hostAddresses = getAllByName(host); + // Try all but last address ignoring exceptions. + for (int i = 0; i < hostAddresses.length - 1; i++) { + try { + socket.connect(new InetSocketAddress(hostAddresses[i], port)); + return; + } catch (IOException e) { + } + } + // Try last address. Do throw exceptions. + socket.connect(new InetSocketAddress(hostAddresses[hostAddresses.length - 1], port)); + } + @Override public Socket createSocket(String host, int port, InetAddress localHost, int localPort) throws IOException { Socket socket = createSocket(); socket.bind(new InetSocketAddress(localHost, localPort)); - socket.connect(new InetSocketAddress(host, port)); + connectToHost(socket, host, port); return socket; } @@ -121,7 +136,7 @@ public class Network implements Parcelable { @Override public Socket createSocket(String host, int port) throws IOException { Socket socket = createSocket(); - socket.connect(new InetSocketAddress(host, port)); + connectToHost(socket, host, port); return socket; }