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'use strict';
var common = require('../common');
var net = require('net');
function check(addressType) {
var server = net.createServer(function(client) {
client.end();
server.close();
});
var address = addressType === 4 ? '127.0.0.1' : '::1';
server.listen(0, address, function() {
net.connect(this.address().port, address).on('lookup', common.fail);
});
}
check(4);
common.hasIPv6 && check(6);