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/*
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* Copyright (c) 2000, 2001, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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*
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* @bug 4204320
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*
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* @summary DatagramSocket.send should throw exception when connected
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* to an invalid destination (on platforms that support it).
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*/
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import java.net.*;
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import java.util.*;
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import java.io.InterruptedIOException;
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public class SendDatagramToBadAddress {
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static boolean debug = false;
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public static boolean OSsupportsFeature () {
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Properties p = System.getProperties ();
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String v;
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if (p.getProperty ("os.name").equals ("Windows 2000"))
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return (true);
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if (p.getProperty ("os.name").equals ("Linux"))
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return (true);
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// Check for specific Solaris version from here
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v = p.getProperty ("os.arch");
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if (!v.equalsIgnoreCase ("sparc"))
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return (false);
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v = p.getProperty ("os.name");
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if (!v.equalsIgnoreCase ("Solaris") && !v.equalsIgnoreCase ("SunOS"))
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return (false);
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v = p.getProperty ("os.version");
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if (v.equals ("5.8") || v.equals ("8"))
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return (false);
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return (true);
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}
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static void print (String s) {
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if (debug)
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System.out.println (s);
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}
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class Server {
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DatagramSocket server;
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byte[] buf = new byte [128];
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DatagramPacket pack = new DatagramPacket (buf, buf.length);
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public Server (DatagramSocket s) {
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server = s;
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}
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public void receive (int loop, boolean expectError) throws Exception {
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for (int i=0; i<loop; i++) {
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try {
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server.receive (pack);
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} catch (Exception e) {
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if (expectError) {
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print ("Got expected error: " + e);
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continue;
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} else {
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print ("Got: " + new String (pack.getData()));
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print ("Expected: " + new String (buf));
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throw new Exception ("Error reading data: Iter " +i);
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}
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}
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String s1 = "Hello, server"+i;
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byte[] buf = s1.getBytes();
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if (!s1.equals (new String (pack.getData(),
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pack.getOffset(),pack.getLength()))) {
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print ("Got: " + new String (pack.getData()));
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print ("Expected: " + new String (buf));
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throw new Exception ("Error comparing data: Iter " +i);
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}
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}
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}
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};
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public static void main (String args[]) throws Exception {
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if (args.length >=1 && args[0].equals ("-d")) {
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debug = true;
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}
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SendDatagramToBadAddress ud = new SendDatagramToBadAddress ();
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ud.run ();
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}
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public void run() throws Exception {
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if (OSsupportsFeature()) {
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print ("running on OS that supports ICMP port unreachable");
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}
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String host = "127.0.0.1";
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InetAddress addr = InetAddress.getByName(host);
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DatagramSocket sock = new DatagramSocket();
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DatagramSocket serversock = new DatagramSocket(0);
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DatagramPacket p;
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byte[] buf;
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int port = serversock.getLocalPort ();
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final int loop = 5;
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Server s = new Server (serversock);
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int i;
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print ("Checking send to connected address ...");
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sock.connect(addr, port);
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for (i = 0; i < loop; i++) {
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try {
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buf = ("Hello, server"+i).getBytes();
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if (i % 2 == 1)
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p = new DatagramPacket(buf, buf.length, addr, port);
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else
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p = new DatagramPacket(buf, buf.length);
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sock.send(p);
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} catch (Exception ex) {
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print ("Got unexpected exception: " + ex);
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throw new Exception ("Error sending data: ");
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}
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}
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s.receive (loop, false);
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// check disconnect() works
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print ("Checking send to non-connected address ...");
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sock.disconnect ();
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buf = ("Hello, server"+0).getBytes();
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p = new DatagramPacket(buf, buf.length, addr, port);
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sock.send (p);
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s.receive (1, false);
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// check send() to invalid destination followed by a blocking receive
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// returns an error
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print ("Checking send to invalid address ...");
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sock.connect(addr, port);
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serversock.close ();
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try {
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sock.setSoTimeout (4000);
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} catch (Exception e) {
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print ("could not set timeout");
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throw e;
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}
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boolean goterror = false;
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for (i = 0; i < loop; i++) {
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try {
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buf = ("Hello, server"+i).getBytes();
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p = new DatagramPacket(buf, buf.length, addr, port);
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sock.send(p);
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p = new DatagramPacket(buf, buf.length, addr, port);
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sock.receive (p);
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} catch (InterruptedIOException ex) {
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print ("socket timeout");
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} catch (Exception ex) {
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print ("Got expected exception: " + ex);
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goterror = true;
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}
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}
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if (!goterror && OSsupportsFeature ()) {
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print ("Didnt get expected exception: ");
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throw new Exception ("send did not return expected error");
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}
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}
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}
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