A simple udp broadcast server and client implemented by Nodejs_node.js

var server = dgram.createSocket("udp4");

server.on("error", function (err) {
console.log("server error:n" err.stack);
server.close();
});

server.on("message", function (msg, rinfo) {
console.log("server got: " msg " from "
rinfo.address ":" rinfo.port);
});

server.on("listening", function () {
var address = server.address();
console.log("server listening "
address.address ":" address.port);
});

server.bind(41234);

var socket = dgram.createSocket("udp4");
socket.bind(function () {
socket.setBroadcast(true);
});

var message = new Buffer("Hi");
socket.send(message, 0, message.length, 41234, '255.255.255.255', function(err, bytes) {
socket.close();
});