static void Main(string[] args)
{
/*
* dataReturn dt = new dataReturn();
* dt = check("stdtime.gov.hk");
* //dt = check("192.168.11.108");
* Console.WriteLine("{0}|{1}|{2}|{3}|{4}",dt.connect.ToString(),dt.datasend.ToString(),dt.NormalResponseSize.ToString(),dt.monlistV2.ToString(),dt.monlistV3.ToString());
* dt = check("stdtime.gov.hk");
* //dt = check("192.168.11.108");
* Console.WriteLine("{0}|{1}|{2}|{3}|{4}", dt.connect.ToString(), dt.datasend.ToString(), dt.NormalResponseSize.ToString(), dt.monlistV2.ToString(), dt.monlistV3.ToString());
*/
Console.ReadLine();
string baseDirectory = AppDomain.CurrentDomain.BaseDirectory;
string[] files = Directory.GetFiles(baseDirectory, "*.log");
foreach (string file in files)
{
FileInfo fi = new FileInfo(file);
string newFileName = fi.FullName.Replace(fi.Extension, ".log2");
Console.WriteLine(newFileName);
StreamReader sr = new StreamReader(file);
StreamWriter sw = new StreamWriter(newFileName);
while (!sr.EndOfStream)
{
string data = sr.ReadLine();
string[] datalist = data.Split('|');
string ip = datalist[1].Trim();
dataReturn dr = new dataReturn();
dr = check(ip);
if (!dr.connect)//if not connect neet to retry since that some time it may not replay due to network problem.
{
Console.WriteLine("Recheck due to disconnect");
dr = check(ip);
}
sw.WriteLine(data + "|{0}|{1}|{2}|{3}|{4}", dr.connect.ToString(), dr.datasend.ToString(), dr.NormalResponseSize.ToString(), dr.monlistV2.ToString(), dr.monlistV3.ToString());
sw.Flush();
}
sr.Close();
sr.Dispose();
sw.Close();
sw.Dispose();
}
Console.ReadLine();
}
public static dataReturn check(string server)
{
dataReturn returnValue = new dataReturn();
returnValue.connect = false;
returnValue.datasend = 48;
returnValue.NormalResponseSize = 0;
returnValue.monlistV2 = 0;
returnValue.monlistV3 = 0;
string ntpServer = server;
var ntpData = new byte[48]; //Initialize byte array for Data we wish to send
var ntpReceive = new byte[48]; //Initialize byte array for Data we wish to receive
ntpData[0] = 0x1B; //NTP Magic data - LeapIndicator = 0 (no warning), VersionNum = 3 (IPv4 only), Mode = 3 (Client Mode)
//Create new instance of a Socket with params defined above
var socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
try
{
Console.WriteLine("Attempting to connect to {0}", ntpServer.ToString());
socket.ReceiveTimeout = 5000; //Set Limit of 5 seconds for connection
socket.Connect(ntpServer, 123);
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Could not connect to NTP Server {0} - Check that UDP Port 123 is not being blocked by something like a firewall...", ntpServer.ToString());
Console.ResetColor();
return(returnValue);
}
socket.Send(ntpData); //Send the NTP Time Request.
try
{
//Attempt to recieve the response from NTP Server
socket.Receive(ntpReceive);
}
catch
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Did not receive a response from the remote NTP Server {0} - Check that UDP Port 123 is not being blocked by something like a firewall...", ntpServer.ToString());
Console.ResetColor();
return(returnValue);
}
returnValue.connect = true;
if (ntpReceive.Count() > 0)
{
returnValue.NormalResponseSize = ntpReceive.Count();
//Do some magic to convert the NTP response into human readable time
ulong intPart = (ulong)ntpReceive[40] << 24 | (ulong)ntpReceive[41] << 16 | (ulong)ntpReceive[42] << 8 | (ulong)ntpReceive[43];
ulong fractPart = (ulong)ntpReceive[44] << 24 | (ulong)ntpReceive[45] << 16 | (ulong)ntpReceive[46] << 8 | (ulong)ntpReceive[47];
var milliseconds = (intPart * 1000) + ((fractPart * 1000) / 0x100000000L);
var networkDateTime = (new DateTime(1900, 1, 1)).AddMilliseconds((long)milliseconds);
Console.WriteLine("NTP Server responded with the following time:");
Console.WriteLine(networkDateTime);
Console.WriteLine("\nAttempting to check if the remote server will return MONLIST information...");
//===================NTP V2===============================
byte[] monlistdata = new byte[] { 0x17, 0x00, 0x03, 0x2a, 0x00, 0x00, 0x00, 0x00 }; //Initialize byte array for MONLIST data we wish to send(NTP V2)
byte[] monlistdataReceive = new byte[1048576]; //Initialize byte array for Monlist we wish to receive (some paper said that it would be 48k max, so i use a bigger value 1mb to see how large data i can get)
try
{
Console.WriteLine("Attempting to connect to {0}", ntpServer.ToString());
socket.ReceiveTimeout = 5000; //Set Limit of 5 seconds for connection
socket.Connect(ntpServer, 123);
}
catch
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Could not connect to NTP Server {0} - Check that UDP Port 123 is not being blocked by something like a firewall...", ntpServer.ToString());
Console.ResetColor();
//returnValue.connect = false;
}
if (returnValue.connect)
{
socket.Send(monlistdata); //Send the NTP Time Request.
try
{
//Attempt to recieve the response from NTP Server
socket.Receive(monlistdataReceive);
}
catch
{
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("NTP Server {0} is NOT responding to a MON_GETLIST V2, that's great!", ntpServer.ToString());
Console.ResetColor();
}
//Clean up after ourselves and dispose of socket.
//socket.Close();
if (monlistdataReceive[7] == 72)
{
//returnValue.monlistV2 = monlistdataReceive.Count();
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("NTP Server {0} IS returning Monlist information when MON_GETLIST V2", ntpServer.ToString());
Console.ResetColor();
}
returnValue.monlistV2 = getcount(monlistdataReceive);
}
//======================NTP V3===================================================================================
monlistdata = new byte[] { 0x1b, 0x00, 0x03, 0x2a, 0x00, 0x00, 0x00, 0x00 }; //Initialize byte array for MONLIST data we wish to send(NTP V3)
monlistdataReceive = new byte[1048576]; //Initialize byte array for Monlist we wish to receive
try
{
Console.WriteLine("Attempting to connect to {0}", ntpServer.ToString());
socket.ReceiveTimeout = 5000; //Set Limit of 5 seconds for connection
socket.Connect(ntpServer, 123);
}
catch
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Could not connect to NTP Server {0} - Check that UDP Port 123 is not being blocked by something like a firewall...", ntpServer.ToString());
Console.ResetColor();
//returnValue.connect = false;
}
if (returnValue.connect)
{
socket.Send(monlistdata); //Send the NTP Time Request.
try
{
//Attempt to recieve the response from NTP Server
socket.Receive(monlistdataReceive);
}
catch
{
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("NTP Server {0} is NOT responding to a MON_GETLIST V3, that's great!", ntpServer.ToString());
Console.ResetColor();
}
//Clean up after ourselves and dispose of socket.
socket.Close();
if (monlistdataReceive[7] == 72)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("NTP Server {0} IS returning Monlist information when MON_GETLIST V3", ntpServer.ToString());
Console.ResetColor();
}
returnValue.monlistV3 = getcount(monlistdataReceive);
}
}
else
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("No NTP response received from NTP Server {0} - Check that UDP Port 123 is not being blocked by something like a firewall...", ntpServer.ToString());
Console.ResetColor();
Console.WriteLine("Press Any key to exit.");
return(returnValue);
}
socket.Close();
return(returnValue);
}
