/*
* Copyright ( c ) 2007 , 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
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*/
/*
* @ test
* @ bug 6521014 6543428
* @ summary IOException thrown when Socket tries to bind to an local IPv6 address on SuSE Linux
* @ library / test / lib
* @ build jdk . test . lib . NetworkConfiguration
* jdk . test . lib . Platform
* @ run main B6521014
*/
import java.net.*;
import java.io.*;
import java.util.*;
import jdk.test.lib.NetworkConfiguration;
/*
*
* What this testcase is to test is a ( weird ) coupling through the
* cached_scope_id field of java . net . Inet6Address . Native method
* NET_InetAddressToSockaddr as in Linux platform will try to write
* and read this field , therefore Inet6Address becomes ' stateful ' .
* So the coupling . Certain executive order , e . g . two methods use
* the same Inet6Address instance as illustrated in this test case ,
* will show side effect of such coupling .
*
* And on Windows , NET_InetAddressToSockaddr ( ) did not assign appropriate
* sin6_scope_id value to sockaddr_in6 structure if there ' s no one coming
* with Inet6Address instance , which caused bind exception . This test use
* link - local address without % scope suffix , so it is also going to test
* that .
*
*/
public class B6521014 {
static Inet6Address removeScope(Inet6Address addr) {
try {
return (Inet6Address)InetAddress.getByAddress(addr.getAddress());
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
static Optional<Inet6Address> getLocalAddr() throws Exception {
return NetworkConfiguration.probe()
.ip6Addresses()
.filter(Inet6Address::isLinkLocalAddress)
.findFirst();
}
static void test1(Inet6Address sin) throws Exception {
try (ServerSocket ssock = createBoundServer(sin);
Socket sock = new Socket()) {
int port = ssock.getLocalPort();
sock.connect(new InetSocketAddress(sin, port), 100 );
} catch (SocketTimeoutException e) {
// time out exception is okay
System.out.println("timed out when connecting." );
}
}
static void test2(Inet6Address sin) throws Exception {
try (ServerSocket ssock = createBoundServer(sin);
Socket sock = new Socket()) {
int port = ssock.getLocalPort();
ssock.setSoTimeout(100 );
sock.bind(new InetSocketAddress(sin, 0 ));
sock.connect(new InetSocketAddress(sin, port), 100 );
} catch (SocketTimeoutException expected) {
// time out exception is okay
System.out.println("timed out when connecting." );
}
}
static ServerSocket createBoundServer(Inet6Address sin) throws IOException {
ServerSocket ss = new ServerSocket();
InetSocketAddress address = new InetSocketAddress(sin, 0 );
ss.bind(address);
return ss;
}
public static void main(String[] args) throws Exception {
Optional<Inet6Address> oaddr = getLocalAddr();
if (!oaddr.isPresent()) {
System.out.println("Cannot find a link-local address." );
return ;
}
Inet6Address addr = oaddr.get();
System.out.println("Using " + addr);
test1(addr);
test2(addr);
}
}
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