NetUtil.java — netty Source File

Source Code

/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package io.netty.util;

import io.netty.util.NetUtilInitializations.NetworkIfaceAndInetAddress;
import io.netty.util.internal.BoundedInputStream;
import io.netty.util.internal.PlatformDependent;
import io.netty.util.internal.StringUtil;
import io.netty.util.internal.SystemPropertyUtil;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.Inet4Address;
import java.net.Inet6Address;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.NetworkInterface;
import java.net.UnknownHostException;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Arrays;
import java.util.Collection;

import static io.netty.util.AsciiString.indexOf;

/**
 * A class that holds a number of network-related constants.
 * <p/>
 * This class borrowed some of its methods from a  modified fork of the
 * <a href="https://svn.apache.org/repos/asf/harmony/enhanced/java/branches/java6/classlib/modules/luni/
 * src/main/java/org/apache/harmony/luni/util/Inet6Util.java">Inet6Util class</a> which was part of Apache Harmony.
 */
public final class NetUtil {

    /**
     * The {@link Inet4Address} that represents the IPv4 loopback address '127.0.0.1'
     */
    public static final Inet4Address LOCALHOST4;

    /**
     * The {@link Inet6Address} that represents the IPv6 loopback address '::1'
// ... (1045 more lines)