public static void Work(IpRange IpRange, PortRange PortRange, int timeOut)
{
DateTime start = DateTime.Now;
Console.WriteLine("Starting...");
Parallel.ForEach(IpRange, new ParallelOptions {
MaxDegreeOfParallelism = 50
}, (ip) =>
{
foreach (int port in PortRange)
{
Socket socket = new Socket(SocketType.Stream, ProtocolType.Tcp);
var result = socket.BeginConnect(ip, port, null, null);
bool success = result.AsyncWaitHandle.WaitOne(timeOut);
if (success)
{
Console.WriteLine($"Found port open {port} @ {ip.MapToIPv4().ToString()}");
}
else
{
socket.Close();
}
}
});
DateTime end = DateTime.Now;
Console.WriteLine($"Done in {end - start}");
}
private static void Run(Options options)
{
//Checking input errors
try
{
IpRange = IpRange.Parse(options.IpRange);
PortRange = PortRange.Parse(options.Ports);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
Worker.Work(IpRange, PortRange, options.timeOut);
}