#include string_helpers.inc;

#include reporting_helpers.inc;

// test for ntp server

function prepare_initial_request(){

var res = strFromRawData(

0xdb, 0x00, 0x04, 0xfa, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00

);

return res;

}

function prepare_second_request(){

var res = strFromRawData(

0x16, 0x02, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00

);

return res;

}

// start

socket = new TSocket("UDP");

socket.Host = ScanHost;

socket.Port = 123;

socket.Timeout = 5;

socket.Connect();

if (socket.IsConnected) {

req1 = prepare_initial_request();

socket.send(req1);

data = socket.Receive(true);

//trace(data);

if (data.length >= 10) {

trace("ntp detected!");

req2 = prepare_second_request();

socket.send(req2);

data = socket.Receive(true);

//trace(data);

if (data.length > 12 && data.match(/system=/i)) {

// extract data from response

info = data.slice(12, data.length - 12);

trace(info);

trace("ntp info!");

KBase("NTP server running", "A NTP (Network Time Protocol) server is running on UDP port 123.[break]Information gathered from this service:[pre]" + info + "[/pre]");

}

}

socket.Close();

}