Packet.parse(buffer)returns an instance ofPacketPacket.write(buffer, packet)writes the given packet into the buffer, truncating where appropriate
var Packet = function () {
this.header = {
id: 0,
qr: 0,
opcode: 0,
aa: 0,
tc: 0,
rd: 1,
ra: 0,
res1: 0,
res2: 0,
res3: 0,
rcode: 0
};
this.question = [];
this.answer = [];
this.authority = [];
this.additional = [];
this.edns_options = [];
this.payload = undefined;
};