static async Task <int> Main(string[] args)
{
var arguments = TcPingArgs.Parse(args);
if (arguments == null)
{
PrintUsage();
return(0);
}
try
{
return(await Ping(arguments));
}
catch (Exception e)
{
Console.WriteLine(e);
return(-1);
}
}
private static async Task <int> Ping(TcPingArgs arg)
{
try
{
using (var socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp))
{
Console.WriteLine($"Connecting to {arg.Host}:{arg.Port}");
var connected = socket.Connect(arg.Host, arg.Port, arg.Timeout);
if (!socket.Connected)
{
throw new SocketException(ConnectionTimeout);
}
socket.Close();
}
Console.WriteLine("Pong!");
}
catch (SocketException ex)
{
Console.WriteLine("PANG!");
switch (ex.SocketErrorCode)
{
case SocketError.TimedOut:
Console.WriteLine($"Timeout ({arg.Timeout})");
break;
default:
Console.WriteLine($"{(int) (ex.SocketErrorCode)} {ex.SocketErrorCode}: {ex.Message}");
break;
}
}
catch (Exception ex)
{
Console.WriteLine("PANG!");
Console.WriteLine(ex);
return(-1);
}
return(0);
}
