/* * Copyright (c) 2009, 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.
*/
publicclass Util { staticfinalint SMALL_BUFFER = 128; staticfinal String SMALL_MESSAGE = "Under the bridge and over the dam, looking for berries, berries for jam";
returnfalse;
} /** * Returns a list of all the addresses on the system. * @param inclLoopback * if {@code true}, include the loopback addresses * @param ipv4Only * it {@code true}, only IPv4 addresses will be included
*/ static List<InetAddress> getAddresses(boolean inclLoopback, boolean ipv4Only) throws SocketException {
ArrayList<InetAddress> list = new ArrayList<InetAddress>();
Enumeration<NetworkInterface> nets =
NetworkInterface.getNetworkInterfaces(); for (NetworkInterface netInf : Collections.list(nets)) {
Enumeration<InetAddress> addrs = netInf.getInetAddresses(); for (InetAddress addr : Collections.list(addrs)) { if (!list.contains(addr) &&
(inclLoopback ? true : !addr.isLoopbackAddress()) &&
(ipv4Only ? (addr instanceof Inet4Address) : true)) {
list.add(addr);
}
}
}
/** * Compare the contents of the given ByteBuffer with the contens of the * given byte array. true if, and only if, the contents are the same.
*/ staticboolean compare(ByteBuffer bb, byte[] message) { if (message.length != bb.remaining()) {
out.println("Compare failed, byte array length != to buffer remaining"); returnfalse;
}
for (int i=0; i<message.length; i++) { byte b = bb.get(); if (message[i] != b) {
out.println("Position " + i + ": " + message[i] + " != " + b); returnfalse;
}
}
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