assert = require('assert'),
dgram = require('dgram'),
util = require('util'),
+ networkInterfaces = require('os').networkInterfaces(),
Buffer = require('buffer').Buffer,
fork = require('child_process').fork,
LOCAL_BROADCAST_HOST = '255.255.255.255',
new Buffer('Fourth message to send')
];
+// take the first non-internal interface as the address for binding
+get_bindAddress: for (var name in networkInterfaces) {
+ var interfaces = networkInterfaces[name];
+ for(var i = 0; i < interfaces.length; i++) {
+ var localInterface = interfaces[i];
+ if (!localInterface.internal && localInterface.family === 'IPv4') {
+ var bindAddress = localInterface.address;
+ break get_bindAddress;
+ }
+ }
+}
+assert.ok(bindAddress);
+
if (process.argv[2] !== 'child') {
var workers = {},
listeners = 3,
// bind the address explicitly for sending
// INADDR_BROADCAST to only one interface
- sendSocket.bind(common.PORT, '127.0.0.1');
+ sendSocket.bind(common.PORT, bindAddress);
sendSocket.on('listening', function () {
sendSocket.setBroadcast(true);
});
listenSocket.on('message', function(buf, rinfo) {
// receive udp messages only sent from parent
- if (rinfo.address !== '127.0.0.1') return;
+ if (rinfo.address !== bindAddress) return;
console.error('[CHILD] %s received %s from %j',
process.pid,