test/jdk/java/net/DatagramSocket/AddressNotSet.java
changeset 59124 d01fe40e9cd8
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/net/DatagramSocket/AddressNotSet.java	Mon Nov 18 16:48:05 2019 +0000
@@ -0,0 +1,150 @@
+/*
+ * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8233141
+ * @summary DatagramSocket.send should throw IllegalArgumentException
+ *          when the packet address is not correctly set.
+ * @run main AddressNotSet
+ */
+
+import java.net.DatagramPacket;
+import java.net.DatagramSocket;
+import java.net.InetAddress;
+import java.net.MulticastSocket;
+import java.net.SocketAddress;
+import java.nio.channels.DatagramChannel;
+
+import static java.lang.System.out;
+
+public class AddressNotSet {
+
+    final InetAddress loopbackAddress = InetAddress.getLoopbackAddress();
+    final DatagramSocket serversock;
+    int i;
+    AddressNotSet() throws Exception {
+        serversock = new DatagramSocket(0, loopbackAddress);
+    }
+
+    public static void main (String args[]) throws Exception {
+        new AddressNotSet().run();
+    }
+
+    public void run() throws Exception {
+        try (var ss = serversock) {
+            try (DatagramSocket sock = new DatagramSocket()) {
+                test(sock);
+            }
+            try (DatagramSocket sock = new MulticastSocket()) {
+                test(sock);
+            }
+            try (DatagramSocket sock = DatagramChannel.open().socket()) {
+                test(sock);
+            }
+        }
+    }
+
+    private void test(DatagramSocket sock) throws Exception {
+        out.println("Testing with " + sock.getClass());
+        InetAddress addr = loopbackAddress;
+        byte[] buf;
+        DatagramPacket p;
+        int port = serversock.getLocalPort();
+        SocketAddress connectedAddress = serversock.getLocalSocketAddress();
+
+        out.println("Checking send to non-connected address ...");
+        try {
+            out.println("Checking send with no packet address");
+            buf = ("Hello, server"+(++i)).getBytes();
+            p = new DatagramPacket(buf, buf.length);
+            sock.send(p);
+            throw new AssertionError("Expected IllegalArgumentException not received");
+        } catch (IllegalArgumentException x) {
+            out.println("Got expected exception: " + x);
+        }
+
+        out.println("Checking send to valid address");
+        buf = ("Hello, server"+(++i)).getBytes();
+        p = new DatagramPacket(buf, buf.length, addr, port);
+        sock.send(p);
+        serversock.receive(p);
+
+        out.println("Connecting to server address: " + connectedAddress);
+        sock.connect(connectedAddress);
+
+        try {
+            out.println("Checking send with different address than connected");
+            buf = ("Hello, server"+(++i)).getBytes();
+            p = new DatagramPacket(buf, buf.length, addr, port+1);
+            sock.send(p);
+            throw new AssertionError("Expected IllegalArgumentException not received");
+        } catch (IllegalArgumentException x) {
+            out.println("Got expected exception: " + x);
+        }
+
+        out.println("Checking send to valid address");
+        buf = ("Hello, server"+(++i)).getBytes();
+        p = new DatagramPacket(buf, buf.length, addr, port);
+        sock.send(p);
+        serversock.receive(p);
+
+        if (sock instanceof MulticastSocket) {
+            sock.disconnect();
+            testTTL((MulticastSocket)sock);
+        }
+    }
+
+    private void testTTL(MulticastSocket sock) throws Exception {
+        out.println("Testing deprecated send TTL with " + sock.getClass());
+        final byte ttl = 100;
+        InetAddress addr = loopbackAddress;
+        byte[] buf;
+        DatagramPacket p;
+        int port = serversock.getLocalPort();
+
+        out.println("Checking send to non-connected address ...");
+        try {
+            out.println("Checking send with no packet address");
+            buf = ("Hello, server"+(++i)).getBytes();
+            p = new DatagramPacket(buf, buf.length);
+            sock.send(p,ttl);
+            throw new AssertionError("Expected IllegalArgumentException not received");
+        } catch (IllegalArgumentException x) {
+            out.println("Got expected exception: " + x);
+        }
+
+        out.println("Connecting to connected address: " + sock);
+        sock.connect(addr, port);
+
+        try {
+            out.println("Checking send with different address than connected");
+            buf = ("Hello, server"+(++i)).getBytes();
+            p = new DatagramPacket(buf, buf.length, addr, port+1);
+            sock.send(p, ttl);
+            throw new AssertionError("Expected IllegalArgumentException not received");
+        } catch (IllegalArgumentException x) {
+            out.println("Got expected exception: " + x);
+        }
+    }
+}