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/*
* Copyright (c) 2020, 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.
*/
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.MulticastSocket;
import java.nio.ByteBuffer;
import java.nio.channels.DatagramChannel;
import java.util.ArrayList;
import java.util.List;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;
import org.testng.annotations.DataProvider;
import static org.testng.Assert.expectThrows;
/*
* @test
* @bug 8236105
* @summary check that DatagramSocket, MulticastSocket,
* DatagramSocketAdaptor and DatagramChannel all
* throw expected Execption when passed a DatagramPacket
* with invalid details
* @run testng/othervm SendCheck
*/
public class SendCheck {
static final Class<IOException> IOE = IOException.class;
static final Class<IllegalArgumentException> IAE = IllegalArgumentException.class;
static final byte[] buf = {0, 1, 2};
static DatagramSocket socket;
@BeforeTest
public void setUp() {
try {
socket = new DatagramSocket();
} catch (Exception e) {
throw new ExceptionInInitializerError(e);
}
}
@AfterTest
public void closeDown() {
socket.close();
}
static final class Packet {
private Packet(String description, DatagramPacket packet) {
this.description = description;
this.packet = packet;
}
final String description;
final DatagramPacket packet;
public String toString() {
return description;
}
public static Packet of(DatagramPacket packet) {
InetAddress address = packet.getAddress();
int port = packet.getPort();
String description;
if (address == null) {
description = "<null>:" + port;
} else if (port < 0) {
description = packet.getAddress().toString() + ":" + port;
} else {
description = packet.getSocketAddress().toString();
}
return new Packet(description, packet);
}
}
@DataProvider(name = "packets")
static Object[][] providerIO() throws IOException {
var wildcard = new InetSocketAddress(0);
/*
Commented until JDK-8236852 is fixed
// loopback w/port 0 -- DC, DSA, MS, DS throws IO
var pkt1 = new DatagramPacket(buf, 0, buf.length);
pkt1.setAddress(InetAddress.getLoopbackAddress());
pkt1.setPort(0);
*/
/*
Commented until JDK-8236852 is fixed
// wildcard w/port 0 -- DC, DSA, MS, DS throws IO
var pkt2 = new DatagramPacket(buf, 0, buf.length);
pkt2.setAddress(wildcard.getAddress());
pkt2.setPort(0);
*/
// loopback w/port -1 -- DC, DSA, MS, DS throws IAE
var pkt3 = new DatagramPacket(buf, 0, buf.length);
pkt3.setAddress(InetAddress.getLoopbackAddress());
// wildcard w/port -1 -- DC, DSA, MS, DS throws IAE
var pkt4 = new DatagramPacket(buf, 0, buf.length);
pkt4.setAddress(wildcard.getAddress());
/*
Commented until JDK-8236807 is fixed
// wildcard addr w/valid port -- DS, MS throws IO ; DC, DSA doesn't throw
var pkt5 = new DatagramPacket(buf, 0, buf.length);
var addr1 = wildcard.getAddress();
pkt5.setAddress(addr1);
pkt5.setPort(socket.getLocalPort());
*/
// PKTS 3 & 4: invalid port -1
List<Packet> iaePackets = List.of(Packet.of(pkt3), Packet.of(pkt4));
List<Sender> senders = List.of(
Sender.of(new DatagramSocket(null)),
Sender.of(new MulticastSocket(null), (byte) 0),
Sender.of(DatagramChannel.open()),
Sender.of(DatagramChannel.open().socket())
);
List<Object[]> testcases = new ArrayList<>();
for (var p : iaePackets) {
addTestCaseFor(testcases, senders, p, IAE);
}
return testcases.toArray(new Object[0][0]);
}
static void addTestCaseFor(List<Object[]> testcases,
List<Sender> senders, Packet p,
Class<? extends Throwable> exception) {
for (var s : senders) {
Object[] testcase = new Object[]{s, p, exception};
testcases.add(testcase);
}
}
@Test(dataProvider = "packets")
public static void channelSendCheck(Sender<IOException> sender,
Packet packet,
Class<? extends Throwable> exception) {
DatagramPacket pkt = packet.packet;
if (exception != null) {
Throwable t = expectThrows(exception, () -> sender.send(pkt));
System.out.printf("%s got expected exception %s%n", packet.toString(), t);
} else {
try {
sender.send(pkt);
} catch (IOException x) {
throw new AssertionError("Unexpected exception for " + sender + " / " + packet, x);
}
}
}
interface Sender<E extends Exception> extends AutoCloseable {
void send(DatagramPacket p) throws E;
void close() throws E;
static Sender<IOException> of(DatagramSocket socket) {
return new SenderImpl<>(socket, socket::send, socket::close);
}
static Sender<IOException> of(MulticastSocket socket, byte ttl) {
SenderImpl.Send<IOException> send =
(pkt) -> socket.send(pkt, ttl);
return new SenderImpl<>(socket, send, socket::close);
}
static Sender<IOException> of(DatagramChannel socket) {
SenderImpl.Send<IOException> send =
(pkt) -> socket.send(ByteBuffer.wrap(pkt.getData()),
pkt.getSocketAddress());
return new SenderImpl<>(socket, send, socket::close);
}
}
static final class SenderImpl<E extends Exception> implements Sender<E> {
@FunctionalInterface
interface Send<E extends Exception> {
void send(DatagramPacket p) throws E;
}
@FunctionalInterface
interface Closer<E extends Exception> {
void close() throws E;
}
private final Send<E> send;
private final Closer<E> closer;
private final Object socket;
public SenderImpl(Object socket, Send<E> send, Closer<E> closer) {
this.socket = socket;
this.send = send;
this.closer = closer;
}
@Override
public void send(DatagramPacket p) throws E {
send.send(p);
}
@Override
public void close() throws E {
closer.close();
}
@Override
public String toString() {
return socket.getClass().getSimpleName();
}
}
}