@Override
public void send(DatagramPacket packet) {
SocketAddress socketAddress = packet.getSocketAddress();
if (!peerAddressToChannel.containsKey(socketAddress)) {
logger.warn("Peer {} is not bound to a channel", socketAddress);
return;
}
Character channelNumber = peerAddressToChannel.get(socketAddress);
byte[] payload = new byte[packet.getLength()];
System.arraycopy(
packet.getData(), packet.getOffset(), payload, packet.getOffset(), payload.length);
ChannelData channelData = new ChannelData();
channelData.setData(payload);
channelData.setChannelNumber(channelNumber);
if (logger.isTraceEnabled()) {
logger.trace(
"Writing {} bytes on channel {}: {}",
packet.getLength(),
(int) channelNumber,
new String(payload, 0, payload.length, StandardCharsets.US_ASCII));
}
try {
stunStack.sendChannelData(channelData, serverAddress, localAddress);
} catch (StunException e) {
throw new RuntimeException(e);
}
}
public void run() {
active = true;
byte[] b = new byte[PACKET_LENGTH];
DatagramPacket p = new DatagramPacket(b, b.length);
while (active) {
try {
socket.receive(p);
// this string constructor which accepts a charset throws an exception if it is
// null
if (encoding == null) {
handlerThread.append(new String(p.getData(), 0, p.getLength()));
} else {
handlerThread.append(new String(p.getData(), 0, p.getLength(), encoding));
}
} catch (SocketException se) {
// disconnected
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
getLogger().debug("{}'s thread is ending.", MulticastReceiver.this.getName());
}
@Override
public void run() {
while (true) {
try {
byte[] dataBuffer = new byte[25600]; // 25kB buffer
DatagramPacket packet = new DatagramPacket(dataBuffer, dataBuffer.length);
multiplexerSocket.receive(packet);
// Check if packet is valid
int type = dataBuffer[0] >>> 4;
int version = dataBuffer[0] & 0x7;
if (version == Packet.VERSION) {
try {
Packet utpPacket = packetFactory.getFromId(type);
Stream inStream = new Stream(packet.getData(), packet.getOffset(), packet.getLength());
utpPacket.read(inStream);
UtpSocket socket = new UtpSocket(utpPacket.getConnectionId());
socket = utpSockets.find(socket);
if (socket != null) {
// log("Received " + utpPacket.getClass().getSimpleName() + " for " +
// (utpPacket.getConnectionId() & 0xFFFF));
socket.updateLastInteraction();
utpPacket.process(socket);
} else {
// log("Packet of " + packet.getLength() + " bytes (0x" +
// Integer.toHexString(dataBuffer[0]) + ") was send to a connection which was not
// established (" + packet.getAddress() + ":" + packet.getPort() + " | " +
// utpPacket.getConnectionId() + ")");
}
} catch (IllegalArgumentException e) {
log(
"Invalid Packet of "
+ packet.getLength()
+ " bytes with type "
+ type
+ " ("
+ packet.getAddress()
+ ":"
+ packet.getPort()
+ ")",
true);
}
} else {
log(
"Invalid Packet of "
+ packet.getLength()
+ " bytes with version "
+ version
+ " ("
+ packet.getAddress()
+ ":"
+ packet.getPort()
+ ")",
true);
}
} catch (IOException e) {
}
}
}
public FakeNodeAddress(DatagramPacket packet) {
this.clientAddress = packet.getAddress();
int ipxLength = packet.getLength();
byte[] buffer = Arrays.copyOf(packet.getData(), packet.getLength());
this.port =
(int) ((buffer[ipxLength - 2] << 8) & 0x0000FF00) | (buffer[ipxLength - 1] & 0x000000FF);
}
private static void readData(String command, DatagramSocket clientSocket, String hostName)
throws IOException {
int hostPort = 69, dataSize = 0;
boolean display = false;
FileOutputStream myFile = null;
long startTime = System.currentTimeMillis();
InetAddress hostAddress = InetAddress.getByName(hostName);
ByteArrayOutputStream requestBytes = createPacket(command);
byte[] myResponseData = new byte[516];
byte[] myRequestData = new byte[516];
byte[] fileData = new byte[512];
myRequestData = requestBytes.toByteArray();
DatagramPacket myDatagramReceivePacket =
new DatagramPacket(myResponseData, myResponseData.length);
DatagramPacket myDatagramSendPacket =
new DatagramPacket(myRequestData, requestBytes.size(), hostAddress, hostPort);
clientSocket.send(myDatagramSendPacket);
clientSocket.setSoTimeout(5000);
try {
do {
clientSocket.receive(myDatagramReceivePacket);
hostPort = myDatagramReceivePacket.getPort();
byte[] opcode = new byte[2];
byte[] blockNumber = new byte[2];
opcode = Arrays.copyOfRange(myDatagramReceivePacket.getData(), 0, 2);
if (opcode[1] == 5) {
readError(myDatagramReceivePacket);
} else if (opcode[1] == 3) {
clientSocket.setSoTimeout(999999999);
display = true;
blockNumber = Arrays.copyOfRange(myDatagramReceivePacket.getData(), 2, 4);
if (myFile == null) myFile = new FileOutputStream(command);
fileData =
Arrays.copyOfRange(
myDatagramReceivePacket.getData(), 4, myDatagramReceivePacket.getLength());
myFile.write(fileData);
dataSize += myDatagramReceivePacket.getLength();
ByteArrayOutputStream ackBytes = new ByteArrayOutputStream();
ackBytes.write(0);
ackBytes.write(4);
ackBytes.write(blockNumber);
for (int i = ackBytes.size(); i < 516; i++) {
ackBytes.write(0);
}
DatagramPacket myDatagramAckSendPacket =
new DatagramPacket(ackBytes.toByteArray(), ackBytes.size(), hostAddress, hostPort);
clientSocket.send(myDatagramAckSendPacket);
}
} while ((myDatagramReceivePacket.getLength() == 516));
if (myFile != null) myFile.close();
if (display) {
long endTime = System.currentTimeMillis() - startTime;
System.out.println("Tranferred " + dataSize + " bytes in " + endTime + " milliseconds.");
}
} catch (SocketTimeoutException s) {
System.out.println("Transfer timed out.");
}
}
public static void main(String args[]) throws Exception {
BufferedReader inFromUser = new BufferedReader(new InputStreamReader(System.in));
DatagramSocket clientSocket = new DatagramSocket();
InetAddress IPAddress = InetAddress.getByName("192.168.1.16");
byte[] sendData = new byte[1024];
byte[] receiveData = new byte[1024];
String sentence = new String("HELLO");
sendData = sentence.getBytes();
DatagramPacket sendPacket = new DatagramPacket(sendData, sendData.length, IPAddress, 9876);
clientSocket.send(sendPacket);
DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length);
clientSocket.receive(receivePacket);
sentence = new String(receivePacket.getData(), 0, receivePacket.getLength());
if (sentence.equals("##100##")) {
System.out.println(sentence + ": Waiting for Red.");
}
while (!sentence.equals("##200##")) {
try {
receivePacket = new DatagramPacket(receiveData, receiveData.length);
clientSocket.receive(receivePacket);
sentence = new String(receivePacket.getData(), 0, receivePacket.getLength());
} catch (Exception e) {
}
}
if (sentence.equals("##200##")) {
System.out.println(sentence + ": Red and Blue are connected");
}
while (true) {
receiveData = new byte[1024];
receivePacket = new DatagramPacket(receiveData, receiveData.length);
clientSocket.receive(receivePacket);
sentence = new String(receivePacket.getData(), 0, receivePacket.getLength());
if (sentence.equals("##300##")) {
break;
}
System.out.println("RED: " + sentence);
sentence = inFromUser.readLine();
sendData = sentence.getBytes();
sendPacket = new DatagramPacket(sendData, sendData.length, IPAddress, 9876);
clientSocket.send(sendPacket);
}
System.out.println(sentence + ": Disconnected.");
clientSocket.close();
}
public void respond(DatagramPacket packet) {
byte[] data = new byte[packet.getLength()];
System.arraycopy(packet.getData(), 0, data, 0, packet.getLength());
try {
String s = new String(data, "8859_1");
System.out.println(packet.getAddress() + " at port " + packet.getPort() + " says " + s);
} catch (java.io.UnsupportedEncodingException ex) {
// This shouldn't happen
}
}
private Candidate getCandidateFromDatagramResponses(List<DatagramPacket> responses)
throws ParserConfigurationException, IOException, RetryException {
List<Candidate> candidates = new ArrayList<Candidate>();
for (DatagramPacket recv : responses) {
String responseXml = new String(recv.getData(), 0, recv.getLength());
Document xml;
System.out.println();
String address = printable(recv.getAddress());
try {
xml =
DocumentBuilderFactory.newInstance()
.newDocumentBuilder()
.parse(new ByteArrayInputStream(recv.getData(), 0, recv.getLength()));
} catch (SAXException e) {
System.out.println("Invalid response XML from " + address + ": " + responseXml);
continue;
}
if (!StringUtils.isBlank(options.candidateTag)) {
System.out.println(address + options.candidateTag);
continue;
}
String swarm = getChildElementString(xml.getDocumentElement(), "swarm");
if (swarm == null) {
System.out.println(address + " doesn't support swarm");
continue;
}
String url =
options.master == null
? getChildElementString(xml.getDocumentElement(), "url")
: options.master;
if (url == null) {
System.out.println(
"Jenkins master at '"
+ address
+ "' doesn't have a valid Jenkins URL configuration set. Please go to <jenkins url>/configure and set a valid URL.");
continue;
}
candidates.add(new Candidate(url, swarm));
}
if (candidates.isEmpty()) {
throw new RetryException("No nearby Jenkins supports swarming");
}
System.out.println("Found " + candidates.size() + " eligible Jenkins.");
return candidates.get(new Random().nextInt(candidates.size()));
}
public void run() {
while (listen) {
try {
byte[] buf = new byte[256];
byte[] buf2 = new byte[256];
DatagramPacket packet = new DatagramPacket(buf, buf.length);
InetAddress address;
socket.receive(packet);
String in = new String(packet.getData(), 0, packet.getLength());
address = packet.getAddress();
int port = packet.getPort();
// newClient = findPort(port, address, newClient);
String name = findPerson(port, address);
// System.out.println(name);
if (in.startsWith("1")) {
String nama = new String(packet.getData(), 0, packet.getLength());
nama = nama.substring(1);
newClient = new Client(packet.getAddress(), packet.getPort(), nama);
threads.add(newClient);
String wel =
"\nWelcome "
+ newClient.nama
+ "\n "
+ "to quit type \"bye\" and to whisper use prefix @name : ";
buf = (wel).getBytes();
packet = new DatagramPacket(buf, buf.length, packet.getAddress(), packet.getPort());
socket.send(packet);
wel = " enters the room";
buf = (newClient.nama + wel).getBytes();
Broadcast(address, port, buf);
} else if (in.startsWith("@")) {
// findPort(port, address, newClient);
Whisper(newClient, packet.getData());
} else if (in.equals("bye")) {
String bye = name + " is leaving";
buf2 = bye.getBytes();
// packet = new DatagramPacket(buf,buf.length,newClient.address, newClient.port);
Broadcast(address, port, buf2);
} else {
byte[] buf3 = new byte[256];
String text =
name + "<broadcast> : " + new String(packet.getData(), 0, packet.getLength());
buf3 = text.getBytes();
Broadcast(packet.getAddress(), packet.getPort(), buf3);
}
} catch (IOException ex) {
Logger.getLogger(DatagramServer.class.getName()).log(Level.SEVERE, null, ex);
}
}
socket.close();
}
SNMP_Parser(DatagramPacket dp) {
data = new byte[dp.getLength()];
int i;
for (i = 0; i < dp.getLength(); i++) {
data[i] = dp.getData()[i];
}
pointer = 0;
data_remaining = data.length;
}
public String toString() {
int size = 0;
String type = "NONE";
String addr = null;
if (packet != null && packet.getAddress() != null && packet.getLength() > 0) {
type = RobocolParsable.MsgType.fromByte(packet.getData()[0]).name();
size = packet.getLength();
addr = packet.getAddress().getHostAddress();
}
return String.format("RobocolDatagram - type:%s, addr:%s, size:%d", type, addr, size);
}
public void run() throws IOException {
final byte[] buf = new byte[2 * 4096];
final DatagramPacket p = new DatagramPacket(buf, buf.length);
while (true) {
socket.receive(p);
System.out.write(p.getData(), p.getOffset(), p.getLength());
System.out.flush();
if (out != null) {
out.write(p.getData(), p.getOffset(), p.getLength());
out.flush();
}
}
}
/**
* Empfangen einer Nachricht ueber UDP
*
* @return Referenz auf Nachricht, die empfangen wurde
* @param timeout Wartezeit in ms
* @throws IOException
*/
public Object receive(int timeout) throws IOException, SocketTimeoutException {
// Maximale Wartezeit fuer Receive am Socket einstellen
try {
log.info("RECEIVE MIT TIMEOUT: " + timeout);
socket.setSoTimeout(timeout);
// System.out.println("RECEIVE: Maximale Wartezeit: " +
// timeout +" ms");
} catch (SocketException e) {
log.error("RECEIVE: " + "Fehler beim Einstellen der maximalen Wartezeit");
throw e;
}
byte[] bytes = new byte[65527];
DatagramPacket packet = new DatagramPacket(bytes, bytes.length);
// System.out.println("VOR: Empfangene Datenlaenge: " + packet.getLength());
try {
// Blockiert nur, bis Timeout abgelaufen ist
socket.receive(packet);
log.debug("RECEIVE: Empfangene Datenlaenge: " + packet.getLength());
System.out.println("RECEIVE: Empfangene Datenlaenge: " + packet.getLength());
} catch (IOException e2) {
log.error("RECEIVE: " + "Fehler beim Empfangen einer PDU ueber UDP", e2);
throw e2;
}
ByteArrayInputStream bais = new ByteArrayInputStream(packet.getData());
ObjectInputStream ois = new ObjectInputStream(bais);
Object pdu;
try {
// System.out.println("RECEIVE: " +
// "Verfuegbare Bytes Inputstream des UDP-Sockets:" +
// ois.available());
pdu = ois.readObject();
remoteAddress = packet.getAddress();
remotePort = packet.getPort();
log.debug("RECEIVE: " + packet.getPort() + "->" + socket.getLocalPort());
} catch (ClassNotFoundException e) {
log.error("RECEIVE: " + "ClassNotFoundException:", e);
return null;
}
log.info("RECEIVE MIT TIMEOUT ENDE: " + timeout);
return pdu;
}
@Override
protected void run() throws Exception {
while (isRunning()) {
// PACKET RECEIVED
socket.receive(packet);
int length = packet.getLength();
byte[] data = ByteBuffer.allocate(length).put(packet.getData(), 0, length).array();
SocketAddress address = packet.getSocketAddress();
// ALLOCATE CLIENT
SWGClient client =
(!connections.containsKey(address))
? clientFactory.create(address)
: connections.get(address);
data = packagingService.disassemble(data, client.getCrc());
if (data.length == 1) {
// TODO: Queue logout packet
// TODO: Disconnect client
} else if (data.length == 0) {
} else {
// TODO: Create SWG Message from data
}
}
}
@Override
public void run() {
try {
socket = new DatagramSocket(port);
while (!isClosed) {
if (socket.isClosed()) return;
byte[] buf = new byte[256];
// receive request
DatagramPacket packet = new DatagramPacket(buf, buf.length);
socket.receive(packet);
ByteArrayInputStream bis = new ByteArrayInputStream(buf, 0, packet.getLength());
BufferedReader in = new BufferedReader(new InputStreamReader(bis));
String msg;
while ((msg = in.readLine()) != null) {
logger.debug("Read from socket: " + msg);
content.add(msg.trim());
}
in.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(final String... args) throws Throwable {
final String remotehost = args[0];
final int remoteport = Integer.parseInt(args[1]);
final DatagramSocket socket = new DatagramSocket();
final byte buffer[] = new byte[512];
final InetSocketAddress remote = new InetSocketAddress(remotehost, remoteport);
buffer[0] = ENQUIRY;
buffer[1] = END_OF_TRANSMISSION;
socket.send(new DatagramPacket(buffer, 2, remote));
final DatagramPacket p = new DatagramPacket(buffer, buffer.length);
socket.receive(p);
if ((p.getLength() == 2) && (buffer[0] == ACKNOWLEDGE) && (buffer[1] == END_OF_TRANSMISSION))
System.out.println("Connection established");
else {
System.out.println("Connection failed");
return;
}
for (; ; ) {
int ptr = 0;
for (int d; (d = System.in.read()) != '\n'; ) buffer[ptr++] = (byte) d;
socket.send(new DatagramPacket(buffer, ptr, remote));
}
}
@Override
public SctpChannel accept()
throws IOException, SctpException, InvalidKeyException, NoSuchAlgorithmException {
logger.setLevel(Level.INFO);
DatagramPacket receivePacket = new DatagramPacket(buffer, buffer.length);
SctpPacket packet = null;
while (true) {
serverSocket.receive(receivePacket);
try {
packet = new SctpPacket(buffer, 0, receivePacket.getLength());
} catch (SctpException e) {
logger.log(Level.WARNING, e.getMessage());
continue;
}
logger.log(Level.INFO, "receive new packet");
InetSocketAddress address =
new InetSocketAddress(receivePacket.getAddress(), receivePacket.getPort());
packet.apply(address, this);
Association association = pendingAssociations.get(address);
if (association != null && association.getState() == State.ESTABLISHED) {
return new SctpChannel(association);
}
}
}
public void run() {
while (true) {
try {
DatagramSocket ClientSoc = new DatagramSocket(ClinetPortNumber);
String Command = "GET";
byte Sendbuff[] = new byte[1024];
Sendbuff = Command.getBytes();
InetAddress ServerHost = InetAddress.getLocalHost();
ClientSoc.send(new DatagramPacket(Sendbuff, Sendbuff.length, ServerHost, 5217));
byte Receivebuff[] = new byte[1024];
DatagramPacket dp = new DatagramPacket(Receivebuff, Receivebuff.length);
ClientSoc.receive(dp);
NewsMsg = new String(dp.getData(), 0, dp.getLength());
System.out.println(NewsMsg);
lblNewsHeadline.setText(NewsMsg);
Thread.sleep(5000);
ClientSoc.close();
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
public boolean sendValues(String valuesString) {
try {
outData = valuesString.getBytes("UTF-8");
outPacket = new DatagramPacket(outData, outData.length, srvAddr, serverPort);
if (DEBUG) Log.d("Czas_klient: ", Long.toString(System.currentTimeMillis()));
clientSocket.send(outPacket);
clientSocket.receive(inPacket);
String response = new String(inPacket.getData(), 0, inPacket.getLength(), "UTF-8");
if (response.equals("RECV_OK")) {
if (DEBUG) Log.d(TAG, "SENT: " + valuesString);
return true;
} else {
if (DEBUG) Log.d(TAG, "Unexptected server values confimation!");
return false;
}
} catch (Exception e) {
if (DEBUG) {
e.printStackTrace();
Log.d(TAG, "Error sending values to server!");
}
return false;
}
}
public void run() {
System.out.println("ExeUDPServer开始监听..." + UDP_PORT);
DatagramSocket ds = null;
try {
ds = new DatagramSocket(UDP_PORT);
} catch (BindException e) {
System.out.println("UDP端口使用中...请重关闭程序启服务器");
} catch (SocketException e) {
e.printStackTrace();
}
while (ds != null) {
DatagramPacket dp = new DatagramPacket(buf, buf.length);
try {
ds.receive(dp);
// 得到把该数据包发来的端口和Ip
int rport = dp.getPort();
InetAddress addr = dp.getAddress();
String recvStr = new String(dp.getData(), 0, dp.getLength());
System.out.println("Server receive：" + recvStr + " from " + addr + " " + rport);
// 给客户端回应
String sendStr = "echo of " + recvStr;
byte[] sendBuf;
sendBuf = sendStr.getBytes();
DatagramPacket sendPacket = new DatagramPacket(sendBuf, sendBuf.length, addr, rport);
ds.send(sendPacket);
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* * When you receive a datagram that you expect to be a TFTP packet, you use this factory method
* to create the proper TFTPPacket object encapsulating the data contained in that datagram. This
* method is the only way you can instantiate a TFTPPacket derived class from a datagram.
*
* <p>
*
* @param datagram The datagram containing a TFTP packet.
* @return The TFTPPacket object corresponding to the datagram.
* @exception org.humbird.soa.common.net.tftp.TFTPPacketException If the datagram does not contain
* a valid TFTP packet. *
*/
public static final TFTPPacket newTFTPPacket(DatagramPacket datagram) throws TFTPPacketException {
byte[] data;
TFTPPacket packet = null;
if (datagram.getLength() < MIN_PACKET_SIZE) {
throw new TFTPPacketException("Bad packet. Datagram data length is too short.");
}
data = datagram.getData();
switch (data[1]) {
case READ_REQUEST:
packet = new TFTPReadRequestPacket(datagram);
break;
case WRITE_REQUEST:
packet = new TFTPWriteRequestPacket(datagram);
break;
case DATA:
packet = new TFTPDataPacket(datagram);
break;
case ACKNOWLEDGEMENT:
packet = new TFTPAckPacket(datagram);
break;
case ERROR:
packet = new TFTPErrorPacket(datagram);
break;
default:
throw new TFTPPacketException("Bad packet. Invalid TFTP operator code.");
}
return packet;
}
public List<EventReply> receive() throws IOException {
byte[] buf = new byte[0xff];
DatagramPacket packet = new DatagramPacket(buf, 0, 0xff);
m_dgSocket.receive(packet);
byte[] data = packet.getData();
// System.out.println("receive data is : "+new String(data,"utf-8"));
StringReader reader = new StringReader(new String(data, 0, packet.getLength(), "utf-8"));
EventReceipt receipt = null;
try {
receipt = (EventReceipt) Unmarshaller.unmarshal(EventReceipt.class, reader);
} catch (MarshalException e) {
e.printStackTrace();
} catch (ValidationException e) {
e.printStackTrace();
}
InetAddress remoteAddr = packet.getAddress();
int port = packet.getPort();
List<EventReply> replys = new ArrayList<EventReply>();
if (receipt != null) {
String[] uuids = receipt.getUuid();
for (String uuid : uuids) {
EventReply reply = new EventReply(remoteAddr, port, uuid);
replys.add(reply);
}
}
return replys;
}
public int synackLink(SynAck synPack) {
/* 请求建立连接 */
PacketManager mag =
new PacketManager(Values.HEAD, Values.SYN, 0, Values.SYNACKLEN, null, synPack);
DatagramPacket sendPacket =
new DatagramPacket(
mag.getBuf(), mag.getBuf().length, Values.SERV_ADDRESS, Values.SERV_PORT);
try {
socket.send(sendPacket);
Log.d(
"johnchain",
"Commander send SYN to server bytes = "
+ sendPacket.getLength()
+ "|\n"
+ Utils.stringSynAck(synPack));
} catch (IOException e) {
Log.e("johnchain", "Commander send SYN failed, transmition aborted");
return Values.RST_ERROR;
}
try {
socket.setSoTimeout(Values.SOCKET_TIMEOUT * 2);
} catch (SocketException e1) {
Log.e("johnchain", "Commander set timeout failed");
}
MyMessage myMsg = waitReply(Values.SYN_ACK, sendPacket);
if (myMsg != null) return Values.RST_OK;
else return Values.RST_TIMEOUT;
}
public void send(byte[] buf, DatagramPacket dp) throws InterruptedException, IOException {
StringBuilder source = new StringBuilder();
source.append(dp.getAddress());
String dataType = type;
byte[] trimmedBuf = Arrays.copyOf(buf, dp.getLength());
String rawPRI = new String(trimmedBuf, 1, 4, Charset.forName("UTF-8"));
int i = rawPRI.indexOf(">");
if (i <= 3 && i > -1) {
String priorityStr = rawPRI.substring(0, i);
int priority = 0;
int facility = 0;
try {
priority = Integer.parseInt(priorityStr);
facility = (priority >> 3) << 3;
facility = facility / 8;
dataType = facilityMap.get(facility);
} catch (NumberFormatException nfe) {
log.warn("Unsupported format detected by SyslogAdaptor:" + Arrays.toString(trimmedBuf));
}
}
bytesReceived += trimmedBuf.length;
Chunk c =
new ChunkImpl(dataType, source.toString(), bytesReceived, trimmedBuf, SyslogAdaptor.this);
dest.add(c);
}
public void run() {
boolean running = true;
DatagramPacket msg = new DatagramPacket(b, b.length);
logReader.debug("Reader running (Multicast=" + (sock instanceof MulticastSocket) + ").");
while (running) {
try {
sock.receive(msg);
if (debugFull) logReader.debug(":run: PtP datagram received. Size = " + msg.getLength());
if ((ignoreSource != null)
&& (ignoreSource.getPort() == msg.getPort())
&& (ignoreSource.getAddress().equals(msg.getAddress()))) {
if (debugFull) logReader.debug(":run: Ignored Last received message");
} else receiveFormatSend(msg);
} catch (SocketTimeoutException ste) {
// ste.printStackTrace();
} catch (IOException e) {
System.err.println("[UdpSimpleSession:reader:run] IOException: " + e.getMessage());
}
synchronized (this) {
if (terminate) running = false;
}
}
}
public void sendConfiguration(Biasgen biasgen) throws HardwareInterfaceException {
if (!isOpen()) {
throw new HardwareInterfaceException("not open");
}
int MAX_COMMAND_LENGTH_BYTES = 256;
for (Pot p : getBiasgen().getPotArray().getPots()) {
UDP_VPot vp = (UDP_VPot) p;
try {
String s = vp.getCommandString();
byte[] b = s.getBytes(); // s.getBytes(Charset.forName("US-ASCII"));
socket.send(new DatagramPacket(b, b.length, client));
DatagramPacket packet =
new DatagramPacket(new byte[MAX_COMMAND_LENGTH_BYTES], MAX_COMMAND_LENGTH_BYTES);
socket.receive(packet);
ByteArrayInputStream bis;
BufferedReader reader =
new BufferedReader(
new InputStreamReader(
(bis = new ByteArrayInputStream(packet.getData(), 0, packet.getLength()))));
String line = reader.readLine(); // .toLowerCase();
log.info("response from " + packet.getAddress() + " : " + line);
// System.out.println(line); // debug
} catch (SocketTimeoutException to) {
log.warning("timeout on waiting for command response on datagram control socket");
} catch (Exception ex) {
throw new HardwareInterfaceException(
"while sending biases to " + client + " caught " + ex.toString());
}
}
}
public void run() {
try {
while (running) {
byte[] sendClientData = new byte[512];
byte[] sendServerData = new byte[512];
byte[] receiveClientData = new byte[512];
byte[] receiveServerData = new byte[512];
DatagramPacket receiveClientPacket = receivePacket(receiveClientData, receiveSocket);
receiveClientPacket.getLength();
// find port used by client
int clientPort = receiveClientPacket.getPort();
DatagramSocket hostSocket = new DatagramSocket();
sendServerData = receiveClientPacket.getData();
sendPacket(sendServerData, serverIPAddress, ServerPort, hostSocket);
DatagramPacket receiveServerPacket = receivePacket(receiveServerData, hostSocket);
if (receiveServerPacket.getData()[0] == 1) {
running = false;
}
sendClientData = receiveServerPacket.getData();
sendPacket(sendClientData, clientIPAddress, clientPort, hostSocket);
hostSocket.close();
}
receiveSocket.close();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Parse a received packet, and notify the main thread if valid.
*
* @param packet The locally-received DatagramPacket
*/
private void handleResponsePacket(DatagramPacket packet) {
String strPacket = new String(packet.getData(), 0, packet.getLength());
String tokens[] = strPacket.trim().split("\\s+");
if (tokens.length != 3) {
Log.w(LOG_TAG, "Malformed response: expected 3 tokens, got " + tokens.length);
return;
}
BroadcastAdvertisement advert;
try {
String serviceType = tokens[0];
if (!serviceType.equals(DESIRED_SERVICE)) {
return;
}
String serviceName = tokens[1];
int port = Integer.parseInt(tokens[2]);
InetAddress addr = packet.getAddress();
Log.v(LOG_TAG, "Broadcast response: " + serviceName + ", " + addr + ", " + port);
advert = new BroadcastAdvertisement(serviceName, addr, port);
} catch (NumberFormatException e) {
return;
}
Message message = mHandler.obtainMessage(DeviceFinder.BROADCAST_RESPONSE, advert);
mHandler.sendMessage(message);
}
public static void main(String[] args) throws IOException {
/* 接受发过来的数据 */
// 创建upd socket服务对象
DatagramSocket ds = new DatagramSocket(10039);
// 创建数据包，用于存储接收到的数据
byte[] bbuf = new byte[1024];
DatagramPacket dp = new DatagramPacket(bbuf, bbuf.length);
// 用socket对象的receive方法将接收到的数据存储到数据包中
ds.receive(dp);
// 获取ip
String ip = dp.getAddress().getHostAddress();
int port = dp.getPort();
// 获取数据内容
byte[] data = dp.getData();
String text = new String(data, 0, dp.getLength());
System.out.println(ip + ":" + port + ":" + text);
ds.close();
}
/** Accept incoming events and processes them. */
@Override
public void run() {
while (isActive()) {
if (datagramSocket.isClosed()) {
// OK we're done.
return;
}
try {
final byte[] buf = new byte[maxBufferSize];
final DatagramPacket packet = new DatagramPacket(buf, buf.length);
datagramSocket.receive(packet);
final ByteArrayInputStream bais =
new ByteArrayInputStream(packet.getData(), packet.getOffset(), packet.getLength());
logEventInput.logEvents(logEventInput.wrapStream(bais), this);
} catch (final OptionalDataException e) {
if (datagramSocket.isClosed()) {
// OK we're done.
return;
}
logger.error("OptionalDataException eof=" + e.eof + " length=" + e.length, e);
} catch (final EOFException e) {
if (datagramSocket.isClosed()) {
// OK we're done.
return;
}
logger.info("EOF encountered");
} catch (final IOException e) {
if (datagramSocket.isClosed()) {
// OK we're done.
return;
}
logger.error("Exception encountered on accept. Ignoring. Stack Trace :", e);
}
}
}
