public boolean open(String addr, int port, String bindAddr) {
try {
ssdpMultiSock = new MulticastSocket(null);
ssdpMultiSock.setReuseAddress(true);
InetSocketAddress bindSockAddr = new InetSocketAddress(port);
ssdpMultiSock.bind(bindSockAddr);
ssdpMultiGroup = new InetSocketAddress(InetAddress.getByName(addr), port);
ssdpMultiIf = NetworkInterface.getByInetAddress(InetAddress.getByName(bindAddr));
ssdpMultiSock.joinGroup(ssdpMultiGroup, ssdpMultiIf);
} catch (Exception e) {
Debug.warning(e);
return false;
}
return true;
}
public boolean send(String msg, String bindAddr, int bindPort) {
try {
MulticastSocket msock;
if ((bindAddr) != null && (0 < bindPort)) {
msock = new MulticastSocket(null);
msock.bind(new InetSocketAddress(bindAddr, bindPort));
} else msock = new MulticastSocket();
DatagramPacket dgmPacket = new DatagramPacket(msg.getBytes(), msg.length(), ssdpMultiGroup);
// Thnaks for Tho Beisch (11/09/04)
msock.setTimeToLive(4);
msock.send(dgmPacket);
msock.close();
} catch (Exception e) {
Debug.warning(e);
return false;
}
return true;
}
public SSDPPacket receive() {
byte ssdvRecvBuf[] = new byte[SSDP.RECV_MESSAGE_BUFSIZE];
SSDPPacket recvPacket = new SSDPPacket(ssdvRecvBuf, ssdvRecvBuf.length);
recvPacket.setLocalAddress(getLocalAddress());
try {
ssdpMultiSock.receive(recvPacket.getDatagramPacket());
recvPacket.setTimeStamp(System.currentTimeMillis());
} catch (Exception e) {
// Debug.warning(e);
}
return recvPacket;
}
public boolean close() {
if (ssdpMultiSock == null) return true;
try {
ssdpMultiSock.leaveGroup(ssdpMultiGroup, ssdpMultiIf);
ssdpMultiSock = null;
} catch (Exception e) {
// Debug.warning(e);
return false;
}
return true;
}