diff --git a/jdk/src/solaris/native/java/net/NetworkInterface.c b/jdk/src/solaris/native/java/net/NetworkInterface.c index 58675462b967dc6eca03c94a998f1413d451a02f..eb4b2929daee36b65c300bcd13a78d870437fc40 100644 --- a/jdk/src/solaris/native/java/net/NetworkInterface.c +++ b/jdk/src/solaris/native/java/net/NetworkInterface.c @@ -753,19 +753,27 @@ static netif *enumInterfaces(JNIEnv *env) { * If IPv6 is available then enumerate IPv6 addresses. */ #ifdef AF_INET6 - sock = openSocket(env, AF_INET6); - if (sock < 0 && (*env)->ExceptionOccurred(env)) { - freeif(ifs); - return NULL; - } - ifs = enumIPv6Interfaces(env, sock, ifs); - close(sock); + /* User can disable ipv6 expicitly by -Djava.net.preferIPv4Stack=true, + * so we have to call ipv6_available() + */ + if (ipv6_available()) { - if ((*env)->ExceptionOccurred(env)) { - freeif(ifs); - return NULL; - } + sock = openSocket(env, AF_INET6); + if (sock < 0 && (*env)->ExceptionOccurred(env)) { + freeif(ifs); + return NULL; + } + + ifs = enumIPv6Interfaces(env, sock, ifs); + close(sock); + + if ((*env)->ExceptionOccurred(env)) { + freeif(ifs); + return NULL; + } + + } #endif return ifs; diff --git a/jdk/test/java/net/NetworkInterface/IPv4Only.java b/jdk/test/java/net/NetworkInterface/IPv4Only.java new file mode 100644 index 0000000000000000000000000000000000000000..dcbfac1ac2e902ea3a858ecbf9a4cae4a8924e82 --- /dev/null +++ b/jdk/test/java/net/NetworkInterface/IPv4Only.java @@ -0,0 +1,51 @@ +/* + * Copyright (c) 2010, 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 6964714 + * @run main/othervm NetworkInterfaceV6List + * @summary Test the networkinterface listing with java.net.preferIPv4Stack=true. + */ + + +import java.net.*; +import java.util.*; + + +public class IPv4Only { + public static void main(String[] args) throws Exception { + System.setProperty("java.net.preferIPv4Stack","true"); + + Enumeration nifs = NetworkInterface.getNetworkInterfaces(); + while (nifs.hasMoreElements()) { + NetworkInterface nif = nifs.nextElement(); + Enumeration addrs = nif.getInetAddresses(); + while (addrs.hasMoreElements()) { + InetAddress hostAddr = addrs.nextElement(); + if ( hostAddr instanceof Inet6Address ){ + throw new RuntimeException( "NetworkInterfaceV6List failed - found v6 address " + hostAddr.getHostAddress() ); + } + } + } + } +}