Example usage for java.net NetworkInterface getByInetAddress

Introduction

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

Prototype

public static NetworkInterface getByInetAddress(InetAddress addr) throws SocketException 

Source Link

Document

Convenience method to search for a network interface that has the specified Internet Protocol (IP) address bound to it.

Usage

From source file:com.clustercontrol.repository.util.NodeSearchUtil.java

/**
 * Generate default IP for node search/create dialog
 *//* w  w w  .ja  va2 s.c  om*/
public static String generateDefaultIp(String def, int hostAddress) {
    try {
        // Get IP
        InetAddress addr = Inet4Address.getLocalHost();

        // Get subnet mask length
        int prefixLength = -1;
        NetworkInterface ni = NetworkInterface.getByInetAddress(addr);
        for (InterfaceAddress iaddr : ni.getInterfaceAddresses()) {
            if (iaddr.getAddress() instanceof Inet4Address) {
                prefixLength = iaddr.getNetworkPrefixLength();
                break;
            }
        }
        if (-1 == prefixLength) {
            return def;
        }

        byte[] ipRaw = addr.getAddress();
        // For ipv4
        if (4 == ipRaw.length) {
            int counter = prefixLength;
            for (int i = 0; i < ipRaw.length; i++) {
                if (counter < 8) {
                    byte mask = 0x00;
                    for (int j = 0; j < counter; j++) {
                        mask = (byte) (mask >> 1 | 0x80);
                    }
                    ipRaw[i] = (byte) (ipRaw[i] & mask);
                }
                counter -= 8;
            }

            // Re-format/round up hostAddress
            if (hostAddress < 0) {
                hostAddress += Math.pow(2, 32 - prefixLength);
            }

            // Add host address part
            int part = 4;
            while (hostAddress > 0 && part > 0) {
                ipRaw[part - 1] += (hostAddress & 0xff);
                hostAddress >>= 8;
            }
            return Inet4Address.getByAddress(ipRaw).getHostAddress();
        }
        // TODO Support ipv6?
    } catch (UnknownHostException | SocketException e) {
        m_log.debug(e);
    }
    return def;
}

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From source file:projetohorus.TamanhoHost.java

void TamanhoHost() throws UnknownHostException, SocketException {
    InetAddress localHost = Inet4Address.getLocalHost();
    NetworkInterface networkInterface = NetworkInterface.getByInetAddress(localHost);
    short x = networkInterface.getInterfaceAddresses().get(0).getNetworkPrefixLength();
    String n = localHost.getHostAddress() + "/" + x;
    System.out.println(n);/*www  . j  ava  2  s . co  m*/
    SubnetUtils utils = new SubnetUtils(n);

    System.out.println(utils.getInfo());
    String first = utils.getInfo().getLowAddress();
    String last = utils.getInfo().getHighAddress();
    String[] iplast = last.split(Pattern.quote("."));
    String[] ipfirst = first.split(Pattern.quote("."));

    numfirst = Integer.parseInt(ipfirst[3]);
    numlast = Integer.parseInt(iplast[3]);

}

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From source file:org.tinymediamanager.core.License.java

/**
 * returns the MAC address of this instance
 * //from  w w  w . ja v  a 2 s  .  c o  m
 * @return MAC or empty string
 */
public static String getMac() {
    try {
        InetAddress ip = InetAddress.getLocalHost();
        if (ip != null) {
            // we are connected to Internet/router and have an IP
            NetworkInterface ni = NetworkInterface.getByInetAddress(ip);
            if (ni == null) {
                // search for other interfaces
                Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
                while (networkInterfaces.hasMoreElements()) {
                    NetworkInterface network = networkInterfaces.nextElement();
                    if (!network.isLoopback()) {
                        ni = network;
                        break;
                    }
                }
            }
            String macAddress = formatMac(ni.getHardwareAddress());
            if (macAddress != null && !macAddress.isEmpty()) {
                return macAddress;
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
        LOGGER.warn("Error getting MAC from LocalHost IP - not connected to internet/router?");
    }

    try {
        for (Enumeration<NetworkInterface> nif = NetworkInterface.getNetworkInterfaces(); nif
                .hasMoreElements();) {
            NetworkInterface ni = null;
            try {
                ni = nif.nextElement();
                String macAddress = formatMac(ni.getHardwareAddress());
                if (macAddress != null && !macAddress.isEmpty()) {
                    // get first
                    return macAddress;
                }
            } catch (Exception e2) {
                LOGGER.warn("Error getting MAC of " + ni);
            }
        }
        return UNKNOWN_MAC;
    } catch (Exception e) {
        LOGGER.warn("I/O Error on getting network interfaces");
        return UNKNOWN_MAC;
    }
}

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From source file:de.pawlidi.openaletheia.utils.AletheiaUtils.java

/**
 * Read java networt mac adress/* w ww.  j  a  v a2s  .  co m*/
 * 
 * @return
 */
public static String getJavaNetMacAddress() {
    String javaMacAdress = null;
    try {
        InetAddress ip = InetAddress.getLocalHost();

        if (ip == null) {
            return null;
        }

        NetworkInterface network = NetworkInterface.getByInetAddress(ip);

        if (network == null) {
            return null;
        }

        byte[] mac = network.getHardwareAddress();

        javaMacAdress = Converter.hexToString(mac);

    } catch (UnknownHostException e) {
        // ignore exception
    } catch (SocketException e) {
        // ignore exception
    }
    return javaMacAdress;
}

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From source file:projetohorus.DadosColetadosPDF.java

void GerarPDF() throws IOException, DocumentException, EmailException {
    Document doc = null;//from   w  w  w.j  a va2s  .c  om
    OutputStream os = null;

    try {
        doc = new Document(PageSize.A4, 72, 72, 72, 72);
        os = new FileOutputStream("tesfinal11.pdf");
        PdfWriter.getInstance(doc, os);
        doc.open();
        Image img = Image.getInstance("LogoProject.png");
        img.setAlignment(Element.ALIGN_CENTER);

        doc.add(img);

        InetAddress localHost = Inet4Address.getLocalHost();
        NetworkInterface networkInterface = NetworkInterface.getByInetAddress(localHost);
        short x = networkInterface.getInterfaceAddresses().get(0).getNetworkPrefixLength();
        String n = localHost.getHostAddress() + "/" + x;
        SubnetUtils utils = new SubnetUtils(n);
        ;

        PdfPTable table = new PdfPTable(new float[] { 0.50f, 0.70f, 0.90f });

        table = new PdfPTable(3);

        Paragraph p = new Paragraph("");
        p.setAlignment(Element.ALIGN_CENTER);
        p.setSpacingAfter(30);
        doc.add(p);
        p = new Paragraph("Informaes da Network");
        p.setAlignment(Element.ALIGN_CENTER);
        p.setSpacingAfter(30);

        doc.add(p);
        Paragraph paragraph = new Paragraph("" + utils.getInfo());
        paragraph.setAlignment(Element.ALIGN_CENTER);
        paragraph.setSpacingAfter(30);
        doc.add(paragraph);
        table.setHorizontalAlignment(Element.ALIGN_CENTER);

        PdfPCell header = new PdfPCell(new Paragraph("Diagnostico do Scanner da Rede"));
        header.setColspan(3);
        table.addCell(header);
        table.addCell("IP");
        table.addCell("HostName");
        table.addCell("Portas Abertas");
        for (int i = 0; i < IP.size(); i++) {

            table.addCell(IP.get(i));
            table.addCell(NameHost.get(i));
            table.addCell("" + PortasA.get(i));
        }
        doc.add(table);

    } finally {
        if (doc != null) {

            doc.close();
        }
        if (os != null) {

            os.close();
        }

    }
    EnvioEmail sc = new EnvioEmail();
    sc.EnvioEmail();

}

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From source file:org.cnbi.utils.license.MacAddressUtil.java

/**
 * IP??Mac?//from  www  .  java  2  s. co m
 * 
 * @param ia
 * @return
 */
private static String getMacByIpAddress(InetAddress ia) {
    // ???mac?mac?byte
    try {
        byte[] mac = NetworkInterface.getByInetAddress(ia).getHardwareAddress();
        // System.out.println("mac" + mac.length);
        // ??mac??String
        StringBuffer sb = new StringBuffer("");
        for (int i = 0; i < mac.length; i++) {
            if (i != 0) {
                sb.append(":");
            }
            // mac[i] & 0xFF byte
            int temp = mac[i] & 0xff;
            String str = Integer.toHexString(temp);
            // System.out.println("?8?:" + str);
            if (str.length() == 1) {
                sb.append("0" + str);
            } else {
                sb.append(str);
            }
        }
        // ???mac?
        return sb.toString().toUpperCase();
    } catch (SocketException e) {
        e.printStackTrace();

        return getMacByCommand();
    }
}

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From source file:nfinity.FindPeer.java

public String ScanNetwork() {
    try {//from  w  w  w  .j av a 2 s . c o m
        Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
        for (NetworkInterface netint : Collections.list(nets)) {
            Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
            for (InetAddress inetAddress : Collections.list(inetAddresses)) {
                if (!inetAddress.getClass().toString().equals("class java.net.Inet6Address")) {
                    if (!inetAddress.isLoopbackAddress()) {
                        try {
                            SubnetUtils utils = new SubnetUtils(inetAddress.getHostAddress() + "/"
                                    + netint.getInterfaceAddresses().get(1).getNetworkPrefixLength());
                            String[] allIps = utils.getInfo().getAllAddresses();
                            return ConnectIP(allIps, inetAddress);
                        } catch (IllegalArgumentException ex) {
                            int prefix = NetworkInterface.getByInetAddress(inetAddress).getInterfaceAddresses()
                                    .get(0).getNetworkPrefixLength();
                            if (!inetAddress.isLoopbackAddress()) {
                                System.out
                                        .println("IP: " + inetAddress.getHostAddress() + " Prefix: " + prefix);
                                SubnetUtils utils = new SubnetUtils(
                                        inetAddress.getHostAddress() + "/" + prefix);
                                String[] allIps = utils.getInfo().getAllAddresses();
                                return ConnectIP(allIps, inetAddress);
                            }
                        }
                    }
                }
            }
        }
    } catch (SocketException ex) {
        System.out.println("Connection failed " + ex.getMessage());
    }
    return "Peer not found";
}

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From source file:com.jaeksoft.searchlib.util.NetworksUtils.java

public static final String getFirstHardwareAddress()
        throws URISyntaxException, UnknownHostException, SocketException {
    InetAddress localhost = InetAddress.getLocalHost();
    String hardwareAddress = null;
    if (localhost != null)
        hardwareAddress = getHardwareAddress(NetworkInterface.getByInetAddress(localhost));
    if (hardwareAddress != null)
        return hardwareAddress;
    Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
    while (networkInterfaces.hasMoreElements()) {
        hardwareAddress = getHardwareAddress(networkInterfaces.nextElement());
        if (hardwareAddress != null)
            return hardwareAddress;
    }//from   w w w.j  a v a  2s  . c om
    return null;
}

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From source file:ca.viaware.dlna.ssdp.SSDPService.java

public SSDPService() {
    ssdpConfig = SettingsManager.getServerConfig().getJSONObject("ssdp");
    httpConfig = SettingsManager.getServerConfig().getJSONObject("http");

    try {//from  ww  w  .  j ava  2  s.  c  o m
        outSock = new MulticastSocket(ssdpConfig.getInt("port"));
        outSock.setNetworkInterface(
                NetworkInterface.getByInetAddress(InetAddress.getByName(ssdpConfig.getString("host"))));
        Log.info("SSDP: Outbound UDP bound to " + this.outSock.getLocalAddress());
    } catch (IOException e) {
        e.printStackTrace();
    }

    this.baseAnnounce = "";
    this.baseAnnounce += "HOST: 239.255.255.250:1900\r\n";
    this.baseAnnounce += "CACHE-CONTROL: max-age=1800\r\n";
    this.baseAnnounce += "NTS: ssdp:alive\r\n";
    this.baseAnnounce += "SERVER:" + Globals.SERVER + "\r\n";
}

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From source file:org.openhab.binding.dscalarm.internal.discovery.EnvisalinkBridgeDiscovery.java

/**
 * Method for Bridge Discovery.//from ww w. j a v a  2s.c  o  m
 */
public synchronized void discoverBridge() {
    logger.debug("Starting Envisalink Bridge Discovery.");

    SubnetUtils subnetUtils = null;
    SubnetInfo subnetInfo = null;
    long lowIP = 0;
    long highIP = 0;

    try {
        InetAddress localHost = InetAddress.getLocalHost();
        NetworkInterface networkInterface = NetworkInterface.getByInetAddress(localHost);
        subnetUtils = new SubnetUtils(localHost.getHostAddress() + "/"
                + networkInterface.getInterfaceAddresses().get(0).getNetworkPrefixLength());
        subnetInfo = subnetUtils.getInfo();
        lowIP = convertIPToNumber(subnetInfo.getLowAddress());
        highIP = convertIPToNumber(subnetInfo.getHighAddress());
    } catch (IllegalArgumentException e) {
        logger.error("discoverBridge(): Illegal Argument Exception - {}", e.toString());
        return;
    } catch (Exception e) {
        logger.error("discoverBridge(): Error - Unable to get Subnet Information! {}", e.toString());
        return;
    }

    logger.debug("   Local IP Address: {} - {}", subnetInfo.getAddress(),
            convertIPToNumber(subnetInfo.getAddress()));
    logger.debug("   Subnet:           {} - {}", subnetInfo.getNetworkAddress(),
            convertIPToNumber(subnetInfo.getNetworkAddress()));
    logger.debug("   Network Prefix:   {}", subnetInfo.getCidrSignature().split("/")[1]);
    logger.debug("   Network Mask:     {}", subnetInfo.getNetmask());
    logger.debug("   Low IP:           {}", convertNumberToIP(lowIP));
    logger.debug("   High IP:          {}", convertNumberToIP(highIP));

    for (long ip = lowIP; ip <= highIP; ip++) {
        try (Socket socket = new Socket()) {
            ipAddress = convertNumberToIP(ip);
            socket.setReuseAddress(true);
            socket.setReceiveBufferSize(32);
            socket.connect(new InetSocketAddress(ipAddress, ENVISALINK_BRIDGE_PORT), CONNECTION_TIMEOUT);

            if (socket.isConnected()) {

                String message = "";
                socket.setSoTimeout(SO_TIMEOUT);
                try (BufferedReader input = new BufferedReader(
                        new InputStreamReader(socket.getInputStream()))) {
                    message = input.readLine();
                } catch (SocketTimeoutException e) {
                    logger.error("discoverBridge(): No Message Read from Socket at [{}] - {}", ipAddress,
                            e.getMessage());
                    continue;
                } catch (Exception e) {
                    logger.error("discoverBridge(): Exception Reading from Socket! {}", e.toString());
                    continue;
                }

                if (message.substring(0, 3).equals(ENVISALINK_DISCOVERY_RESPONSE)) {
                    logger.debug("discoverBridge(): Bridge Found - [{}]!  Message - '{}'", ipAddress, message);
                    dscAlarmBridgeDiscovery.addEnvisalinkBridge(ipAddress);
                } else {
                    logger.debug("discoverBridge(): No Response from Connection -  [{}]!  Message - '{}'",
                            ipAddress, message);
                }
            }
        } catch (IllegalArgumentException e) {
            logger.error("discoverBridge(): Illegal Argument Exception - {}", e.toString());
        } catch (SocketTimeoutException e) {
            logger.trace("discoverBridge(): No Connection on Port 4025! [{}]", ipAddress);
        } catch (SocketException e) {
            logger.error("discoverBridge(): Socket Exception! [{}] - {}", ipAddress, e.toString());
        } catch (IOException e) {
            logger.error("discoverBridge(): IO Exception! [{}] - {}", ipAddress, e.toString());
        }
    }
}

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