Example usage for java.net NetworkInterface getInetAddresses

Introduction

In this page you can find the example usage for java.net NetworkInterface getInetAddresses.

Prototype

public Enumeration<InetAddress> getInetAddresses()

Source Link

Document

Get an Enumeration with all or a subset of the InetAddresses bound to this network interface.

Usage

From source file:com.buaa.cfs.utils.NetUtils.java

/**
 * Add all addresses associated with the given nif in the given subnet to the given list.
 *//*w w w .j  a  v  a 2  s  .  co m*/
private static void addMatchingAddrs(NetworkInterface nif, SubnetInfo subnetInfo, List<InetAddress> addrs) {
    Enumeration<InetAddress> ifAddrs = nif.getInetAddresses();
    while (ifAddrs.hasMoreElements()) {
        InetAddress ifAddr = ifAddrs.nextElement();
        if (subnetInfo.isInRange(ifAddr.getHostAddress())) {
            addrs.add(ifAddr);
        }
    }
}

From source file:ws.argo.DemoWebClient.Browser.BrowserController.java

private static String getHostIPAddressFromString(String propIPAddress, String niName) {
    String hostIPAddr = propIPAddress;

    if (propIPAddress.equals("")) {
        // If the listenerIPAddress is blank, then try to get the ip address of
        // the interface

        try {//ww  w. java  2s . com
            NetworkInterface ni = null;
            if (niName != null)
                ni = NetworkInterface.getByName(niName);
            if (ni == null) {
                LOGGER.info("Network Interface name not specified or incorrect.  Defaulting to localhost");
                hostIPAddr = InetAddress.getLocalHost().getHostAddress();
            } else {

                if (!ni.isLoopback()) {

                    Enumeration<InetAddress> ee = ni.getInetAddresses();
                    while (ee.hasMoreElements()) {
                        InetAddress i = (InetAddress) ee.nextElement();
                        if (i instanceof Inet4Address) {
                            hostIPAddr = i.getHostAddress();
                            break; // get the first one an get out of the loop
                        }
                    }
                }
            }

        } catch (SocketException e) {
            LOGGER.warn("A socket exception occurred.");
        } catch (UnknownHostException e) {
            LOGGER.warn("Error finding Network Interface", e);
        }

    }

    return hostIPAddr;
}

From source file:ca.psiphon.PsiphonTunnel.java

private static PrivateAddress selectPrivateAddress() throws Exception {
    // Select one of 10.0.0.1, 172.16.0.1, or 192.168.0.1 depending on
    // which private address range isn't in use.

    Map<String, PrivateAddress> candidates = new HashMap<String, PrivateAddress>();
    candidates.put("10", new PrivateAddress("10.0.0.1", "10.0.0.0", 8, "10.0.0.2"));
    candidates.put("172", new PrivateAddress("172.16.0.1", "172.16.0.0", 12, "172.16.0.2"));
    candidates.put("192", new PrivateAddress("192.168.0.1", "192.168.0.0", 16, "192.168.0.2"));
    candidates.put("169", new PrivateAddress("169.254.1.1", "169.254.1.0", 24, "169.254.1.2"));

    List<NetworkInterface> netInterfaces;
    try {/*from  w w w  .ja v a2  s.  c o  m*/
        netInterfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
    } catch (SocketException e) {
        throw new Exception("selectPrivateAddress failed", e);
    }

    for (NetworkInterface netInterface : netInterfaces) {
        for (InetAddress inetAddress : Collections.list(netInterface.getInetAddresses())) {
            String ipAddress = inetAddress.getHostAddress();
            if (InetAddressUtils.isIPv4Address(ipAddress)) {
                if (ipAddress.startsWith("10.")) {
                    candidates.remove("10");
                } else if (ipAddress.length() >= 6 && ipAddress.substring(0, 6).compareTo("172.16") >= 0
                        && ipAddress.substring(0, 6).compareTo("172.31") <= 0) {
                    candidates.remove("172");
                } else if (ipAddress.startsWith("192.168")) {
                    candidates.remove("192");
                }
            }
        }
    }

    if (candidates.size() > 0) {
        return candidates.values().iterator().next();
    }

    throw new Exception("no private address available");
}

From source file:adams.core.net.InternetHelper.java

/**
 * Returns the IP address determined from the network interfaces (using
 * the IP address of the one with a proper host name).
 *
 * @return       the IP address/*w  w  w  .  jav  a  2  s .  com*/
 */
public static synchronized String getIPFromNetworkInterface() {
    String result;
    List<String> list;
    Enumeration<NetworkInterface> enmI;
    NetworkInterface intf;
    Enumeration<InetAddress> enmA;
    InetAddress addr;
    boolean found;

    result = null;

    if (m_IPNetworkInterface == null) {
        list = new ArrayList<>();
        found = false;
        try {
            enmI = NetworkInterface.getNetworkInterfaces();
            while (enmI.hasMoreElements()) {
                intf = enmI.nextElement();
                // skip non-active ones
                if (!intf.isUp())
                    continue;
                enmA = intf.getInetAddresses();
                while (enmA.hasMoreElements()) {
                    addr = enmA.nextElement();
                    list.add(addr.getHostAddress());
                    if (addr.getHostName().indexOf(':') == -1) {
                        result = addr.getHostAddress();
                        found = true;
                        break;
                    }
                }
                if (found)
                    break;
            }
        } catch (Exception e) {
            // ignored
        }

        if (result == null) {
            if (list.size() > 0)
                result = list.get(0);
            else
                result = "<unknown>";
        }

        m_IPNetworkInterface = result;
    } else {
        result = m_IPNetworkInterface;
    }

    return result;
}

From source file:org.speechforge.zanzibar.sip.SipServer.java

public static InetAddress getLocalHost() throws SocketException, UnknownHostException {
    Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
    while (networkInterfaces.hasMoreElements()) {
        NetworkInterface networkInterface = networkInterfaces.nextElement();
        if (!networkInterface.isLoopback()) {
            Enumeration<InetAddress> inetAddresses = networkInterface.getInetAddresses();
            if (inetAddresses.hasMoreElements())
                return inetAddresses.nextElement();
        }/*from   w w  w . j a  va 2 s .  c o m*/
    }
    return InetAddress.getLocalHost();
}

From source file:adams.core.net.InternetHelper.java

/**
 * Returns the host name determined from the network interfaces.
 *
 * @return       the host name, null if none found
 *///ww w.  j a  v  a 2  s  .  co m
public static synchronized String getHostnameFromNetworkInterface() {
    String result;
    List<String> list;
    Enumeration<NetworkInterface> enmI;
    NetworkInterface intf;
    Enumeration<InetAddress> enmA;
    InetAddress addr;
    boolean found;

    result = null;

    if (m_HostnameNetworkInterface == null) {
        list = new ArrayList<>();
        found = false;
        try {
            enmI = NetworkInterface.getNetworkInterfaces();
            while (enmI.hasMoreElements()) {
                intf = enmI.nextElement();
                // skip non-active ones
                if (!intf.isUp())
                    continue;
                enmA = intf.getInetAddresses();
                while (enmA.hasMoreElements()) {
                    addr = enmA.nextElement();
                    list.add(addr.getHostName());
                    if (addr.getHostName().indexOf(':') == -1) {
                        result = addr.getHostName();
                        found = true;
                        break;
                    }
                }
                if (found)
                    break;
            }
        } catch (Exception e) {
            // ignored
        }

        if (result == null) {
            if (list.size() > 0)
                result = list.get(0);
            else
                result = "<unknown>";
        }

        m_HostnameNetworkInterface = result;
    } else {
        result = m_HostnameNetworkInterface;
    }

    return result;
}

From source file:com.example.zoetablet.BasicFragmentActivity.java

protected static String getLocalIpAddress() {
    try {//from w w w.  j a v a 2s. co m
        for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en
                .hasMoreElements();) {
            NetworkInterface intf = en.nextElement();
            for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
                InetAddress inetAddress = enumIpAddr.nextElement();
                if (!inetAddress.isLoopbackAddress()) {
                    return inetAddress.getHostAddress().toString();
                }
            }
        }
    } catch (SocketException ex) {
        Log.e("Tablet", ex.toString());
    }
    return null;
}

From source file:org.apache.sshd.common.util.net.SshdSocketAddress.java

/**
 * @return a {@link List} of local network addresses which are not multicast
 * or localhost sorted according to {@link #BY_HOST_ADDRESS}
 *///w  ww .  ja v a 2 s .  co  m
public static List<InetAddress> getExternalNetwork4Addresses() {
    List<InetAddress> addresses = new ArrayList<>();
    try {
        for (Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces(); (nets != null)
                && nets.hasMoreElements();) {
            NetworkInterface netint = nets.nextElement();
            /* TODO - uncomment when 1.5 compatibility no longer required
            if (!netint.isUp()) {
            continue;    // ignore non-running interfaces
            }
            */

            for (Enumeration<InetAddress> inetAddresses = netint.getInetAddresses(); (inetAddresses != null)
                    && inetAddresses.hasMoreElements();) {
                InetAddress inetAddress = inetAddresses.nextElement();
                if (isValidHostAddress(inetAddress)) {
                    addresses.add(inetAddress);
                }
            }
        }
    } catch (SocketException e) {
        // swallow
    }

    if (GenericUtils.size(addresses) > 1) {
        Collections.sort(addresses, BY_HOST_ADDRESS);
    }

    return addresses;
}

From source file:com.jagornet.dhcp.server.JagornetDhcpServer.java

public static List<InetAddress> getAllIPv6Addrs() {
    if (allIPv6Addrs == null) {
        allIPv6Addrs = new ArrayList<InetAddress>();
        try {/*from w  w  w  . j a  v a2 s . c  o m*/
            Enumeration<NetworkInterface> localInterfaces = NetworkInterface.getNetworkInterfaces();
            if (localInterfaces != null) {
                while (localInterfaces.hasMoreElements()) {
                    NetworkInterface netIf = localInterfaces.nextElement();
                    Enumeration<InetAddress> ifAddrs = netIf.getInetAddresses();
                    while (ifAddrs.hasMoreElements()) {
                        InetAddress ip = ifAddrs.nextElement();
                        if (ip instanceof Inet6Address) {
                            allIPv6Addrs.add(ip);
                        }
                    }
                }
            } else {
                log.error("No network interfaces found!");
            }
        } catch (IOException ex) {
            log.error("Failed to get IPv6 addresses: " + ex);
        }
    }
    return allIPv6Addrs;
}

From source file:com.jagornet.dhcp.server.JagornetDhcpServer.java

public static List<InetAddress> getAllIPv4Addrs() {
    if (allIPv4Addrs == null) {
        allIPv4Addrs = new ArrayList<InetAddress>();
        try {// w w  w  . j av  a 2 s . com
            Enumeration<NetworkInterface> localInterfaces = NetworkInterface.getNetworkInterfaces();
            if (localInterfaces != null) {
                while (localInterfaces.hasMoreElements()) {
                    NetworkInterface netIf = localInterfaces.nextElement();
                    Enumeration<InetAddress> ifAddrs = netIf.getInetAddresses();
                    while (ifAddrs.hasMoreElements()) {
                        InetAddress ip = ifAddrs.nextElement();
                        if (ip instanceof Inet4Address) {
                            allIPv4Addrs.add(ip);
                        }
                    }
                }
            } else {
                log.error("No network interfaces found!");
            }
        } catch (IOException ex) {
            log.error("Failed to get IPv4 addresses: " + ex);
        }
    }
    return allIPv4Addrs;
}