Ping a host : Ping « Network « C# / C Sharp

1. C# / C Sharp
2. Network
3. Ping

Ping a host

        

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Sockets;
using System.Threading;

public static class NetUtility
{
    public static bool Ping(string host, int port)
    {
        return Ping(host, port, TimeSpan.MaxValue);
    }
    public static bool Ping(string host, int port, out TimeSpan elapsed)
    {
        return Ping(host, port, TimeSpan.MaxValue, out elapsed);
    }
    public static bool Ping(string host, int port, TimeSpan timeout)
    {
        TimeSpan elapsed;
        return Ping(host, port, timeout, out elapsed);
    }
    public static bool Ping(string host, int port, TimeSpan timeout, out TimeSpan elapsed)
    {
        using (TcpClient tcp = new TcpClient())
        {
            DateTime start = DateTime.Now;
            IAsyncResult result = tcp.BeginConnect(host, port, null, null);
            WaitHandle wait = result.AsyncWaitHandle;
            bool ok = true;

            try
            {
                if (!result.AsyncWaitHandle.WaitOne(timeout, false))
                {
                    tcp.Close();
                    ok = false;
                }

                tcp.EndConnect(result);
            }
            catch
            {
                ok = false;
            }
            finally
            {
                wait.Close();
            }

            DateTime stop = DateTime.Now;
            elapsed = stop.Subtract(start);
            return ok;
        }
    }
}

   
    
    
    
    
    
    
    
  

Related examples in the same category

1.	Success
2.	Ping and PingReply
3.	Ping Success and Send
4.	Advanced Ping Program
5.	Simple Ping
6.	This method checks if there is a connection at all
7.	Uses the System.Net.NetworkInformation.Ping class to send an ICMP ping to a specified host asynchronously.
8.	Is Internet Connection Available