Example usage for java.net InetAddress getByAddress

Introduction

In this page you can find the example usage for java.net InetAddress getByAddress.

Prototype

public static InetAddress getByAddress(byte[] addr) throws UnknownHostException 

Source Link

Document

Returns an InetAddress object given the raw IP address .

Usage

From source file:com.offbynull.portmapper.pcp.FilterPcpOption.java

/**
 * Constructs a {@link FilterPcpOption} by parsing a buffer.
 * @param buffer buffer containing PCP option data
 * @throws NullPointerException if any argument is {@code null}
 * @throws BufferUnderflowException if not enough data is available in {@code buffer}
 * @throws IllegalArgumentException if option code is not {@code 3}, or if the field {@code prefixLength > 128}
 *///  w ww.j  a va 2 s  .c o  m
public FilterPcpOption(ByteBuffer buffer) {
    super(buffer);

    Validate.isTrue(super.getCode() == 3);

    buffer.get(); // reserved
    prefixLength = buffer.get() & 0xFF;
    remotePeerPort = buffer.getShort() & 0xFFFF;

    Validate.inclusiveBetween(0, 128, prefixLength); // 0 indicates 'no filter'
    Validate.inclusiveBetween(0, 65535, remotePeerPort); // 0 indicates 'all ports', should never trigger

    byte[] addrArr = new byte[16];
    buffer.get(addrArr);
    try {
        remotePeerIpAddress = InetAddress.getByAddress(addrArr);
    } catch (UnknownHostException uhe) {
        throw new IllegalStateException(uhe); // should never happen
    }
}

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From source file:org.apache.hadoop.hbase.TestIPv6NIOServerSocketChannel.java

/**
 * Checks whether we are effected by the JDK issue on windows, and if so
 * ensures that we are running with preferIPv4Stack=true.
 *///w ww.ja  v  a  2s. c  o  m
@Test
public void testServerSocket() throws IOException {
    byte[] addr = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 };
    InetAddress inetAddr = InetAddress.getByAddress(addr);

    try {
        bindServerSocket(inetAddr);
        bindNIOServerSocket(inetAddr);
        //if on *nix or windows JDK7, both will pass
    } catch (java.net.SocketException ex) {
        //On Windows JDK6, we will get expected exception:
        //java.net.SocketException: Address family not supported by protocol family
        //or java.net.SocketException: Protocol family not supported
        Assert.assertFalse(ex.getClass().isInstance(BindException.class));
        Assert.assertTrue(ex.getMessage().toLowerCase().contains("protocol family"));
        LOG.info("Received expected exception:");
        LOG.info(ex);

        //if this is the case, ensure that we are running on preferIPv4=true
        ensurePreferIPv4();
    }
}

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From source file:org.opendaylight.netvirt.dhcpservice.api.DHCPOptions.java

public String getOptionStrAddr(byte code) {
    byte[] opt = this.getOptionBytes(code);
    try {/*from  w  w w .  ja v a 2  s  .c o  m*/
        return InetAddress.getByAddress(opt).getHostAddress();
    } catch (UnknownHostException | NullPointerException e) {
        return null;
    }
}

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From source file:net.fenyo.gnetwatch.GenericTools.java

/**
 * Returns the class A/B/C network address containing an IP address.
 * @param addr_str IPv4 address./*from w ww  .  j  a va  2 s . c  om*/
 * @return String network address.
 */
static public String getNetFromAddress(final String addr_str) {
    try {
        final InetAddress addr;

        addr = InetAddress.getByName(addr_str);

        if (Inet6Address.class.isInstance(addr)) {
            // rfc-4291
            return "IPv6 range";
        } else if (Inet4Address.class.isInstance(addr)) {
            byte bytes[] = ((Inet4Address) addr).getAddress();
            if (unsignedByteToShort(bytes[0]) < 128) {
                // class A
                bytes[1] = 0;
                bytes[2] = 0;
                bytes[3] = 0;
                return InetAddress.getByAddress(bytes).toString().substring(1) + "/8";
            } else if (unsignedByteToShort(bytes[0]) < 192) {
                // class B
                bytes[2] = 0;
                bytes[3] = 0;
                return InetAddress.getByAddress(bytes).toString().substring(1) + "/16";
            } else if (unsignedByteToShort(bytes[0]) < 224) {
                // class C
                bytes[3] = 0;
                return InetAddress.getByAddress(bytes).toString().substring(1) + "/24";
            } else if (unsignedByteToShort(bytes[0]) < 248) {
                // class D
                return "224.0.0.0/4";
            } else {
                // class E
                return "248.0.0.0/4";
            }
        } else
            return null;
    } catch (final UnknownHostException ex) {
        log.error("Exception (addr_str=" + addr_str + ")", ex);
        return null;
    }
}

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From source file:nl.sidn.pcap.util.GeoLookupUtil.java

public String lookupASN(byte[] ip, boolean v4) {
    try {/*from   ww w. j  a  va2  s  .co m*/
        InetAddress addr = InetAddress.getByAddress(ip);
        return lookupASN(addr, v4);
    } catch (UnknownHostException e) {
        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("No asn found for: " + ip);
        }
        return null;
    }
}

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From source file:org.opendaylight.controller.switchmanager.Subnet.java

private InetAddress getPrefixForAddress(InetAddress ip) {
    int bytes = this.subnetMaskLength / 8;
    int bits = this.subnetMaskLength % 8;
    byte modifiedByte;
    byte[] sn = ip.getAddress();
    if (bits > 0) {
        modifiedByte = (byte) (sn[bytes] >> (8 - bits));
        sn[bytes] = (byte) (modifiedByte << (8 - bits));
        bytes++;//from  ww w.  ja  v  a  2 s .c  om
    }
    for (; bytes < sn.length; bytes++) {
        sn[bytes] = (byte) (0);
    }
    try {
        return InetAddress.getByAddress(sn);
    } catch (UnknownHostException e) {
        return null;
    }
}

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From source file:com.bitsofproof.supernode.core.IRCDiscovery.java

@Override
public List<InetSocketAddress> discover() {
    List<InetSocketAddress> al = new ArrayList<InetSocketAddress>();

    try {/*from   w  w w  .  j  a v  a  2 s  .  c o m*/
        log.trace("Connect to IRC server " + server);
        Socket socket = new Socket(server, port);
        PrintWriter writer = new PrintWriter(new OutputStreamWriter(socket.getOutputStream(), "UTF-8"));
        BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream(), "UTF-8"));

        String[] answers = new String[] { "Found your hostname", "using your IP address instead",
                "Couldn't look up your hostname", "ignoring hostname" };
        String line;
        boolean stop = false;
        while (!stop && (line = reader.readLine()) != null) {
            log.trace("IRC receive " + line);
            for (int i = 0; i < answers.length; ++i) {
                if (line.contains(answers[i])) {
                    stop = true;
                    break;
                }
            }
        }

        String nick = "bop" + new SecureRandom().nextInt(Integer.MAX_VALUE);
        writer.println("NICK " + nick);
        writer.println("USER " + nick + " 8 * : " + nick);
        writer.flush();
        log.trace("IRC send: I am " + nick);

        while ((line = reader.readLine()) != null) {
            log.trace("IRC receive " + line);
            if (hasCode(line, new String[] { " 004 ", " 433 " })) {
                break;
            }
        }
        log.trace("IRC send: joining " + channel);
        writer.println("JOIN " + channel);
        writer.println("NAMES");
        writer.flush();
        while ((line = reader.readLine()) != null) {
            log.trace("IRC receive " + line);
            if (hasCode(line, new String[] { " 353 " })) {
                StringTokenizer tokenizer = new StringTokenizer(line, ":");
                String t = tokenizer.nextToken();
                if (tokenizer.hasMoreElements()) {
                    t = tokenizer.nextToken();
                }
                tokenizer = new StringTokenizer(t);
                tokenizer.nextToken();
                while (tokenizer.hasMoreTokens()) {
                    String w = tokenizer.nextToken().substring(1);
                    if (!tokenizer.hasMoreElements()) {
                        continue;
                    }
                    try {
                        byte[] m = ByteUtils.fromBase58WithChecksum(w);
                        byte[] addr = new byte[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (byte) 0xff, (byte) 0xff, 0, 0,
                                0, 0 };
                        System.arraycopy(m, 0, addr, 12, 4);
                        al.add(new InetSocketAddress(InetAddress.getByAddress(addr), chain.getPort()));
                    } catch (ValidationException e) {
                        log.trace(e.toString());
                    }
                }
            }
            if (hasCode(line, new String[] { " 366 " })) {
                break;
            }
        }
        writer.println("PART " + channel);
        writer.println("QUIT");
        writer.flush();
        socket.close();
    } catch (UnknownHostException e) {
        log.error("Can not find IRC server " + server, e);
    } catch (IOException e) {
        log.error("Can not use IRC server " + server, e);
    }

    return al;
}

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From source file:us.nineworlds.serenity.core.services.GDMService.java

protected InetAddress getBroadcastAddress() throws IOException {
    WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
    DhcpInfo dhcp = wifi.getDhcpInfo();//from   w w  w .j a v  a  2 s. co m
    // handle null somehow

    int broadcast = (dhcp.ipAddress & dhcp.netmask) | ~dhcp.netmask;
    byte[] quads = new byte[4];
    for (int k = 0; k < 4; k++)
        quads[k] = (byte) (broadcast >> k * 8);
    return InetAddress.getByAddress(quads);
}

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From source file:com.rovemonteux.silvertunnel.netlib.layer.tor.common.TCPStreamProperties.java

public TCPStreamProperties(final TcpipNetAddress address) {
    if (address.getIpaddress() != null) {
        // use IP address (preferred over host name)
        this.hostname = null;
        try {/*from   w  w  w.  j  a  va2  s  .  c  om*/
            this.addr = InetAddress.getByAddress(address.getIpaddress());
        } catch (final UnknownHostException e) {
            LOG.warn("invalid address=" + address, e);
        }

        this.port = address.getPort();
        addrResolved = true;
    } else {
        // use host name
        this.hostname = address.getHostname();
        this.addr = null;
        this.port = address.getPort();
        addrResolved = false;
    }

    init();
}

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From source file:com.cafbit.multicasttest.NetThread.java

/**
 * Transmit an mDNS query on the local network.
 * @param host/*from   w w w . j  ava  2 s .c  o  m*/
 * @throws IOException
 */
private void query(String host) throws IOException {
    Log.i(TAG, "query  essai 1: " + host);
    byte[] requestData = (new DNSMessage(host)).serialize();
    DatagramPacket request = new DatagramPacket(requestData, requestData.length,
            InetAddress.getByAddress(MDNS_ADDR), MDNS_PORT);
    multicastSocket.send(request);
}

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