public bool PingTest()
{
var ping = new Ping();
const string adr = "173.194.39.56";
PingReply pingReply = ping.Send(adr, 500);
if (pingReply.Status == IPStatus.Success)
{
return true;
}
else
{
return false;
}
}
/// <summary>
/// Pings the host.
/// </summary>
/// <param name="ipAddress">The ip address.</param>
/// <param name="portNumber">The port number.</param>
/// <returns></returns>
public static bool PingHost(string ipAddress, int portNumber)
{
bool result = false;
try
{
Uri url = new Uri(ipAddress);
string pingurl = String.Format("{0}", url.Host);
string host = pingurl;
Ping p = new Ping();
PingReply reply = p.Send(host, portNumber);
if (reply != null && reply.Status == IPStatus.Success)
result = true;
}
catch (Exception ex)
{
}
return result;
}
//thread to do ping
public void startPing(string sHost, PingOptions pOptions)
{
System.Diagnostics.Debug.WriteLine("+++thread started");
string ipAddress = sHost;//make a local copy
Ping myPing = new Ping();
PingOptions myPingOptions = pOptions;//make a local copy
int iTimeout = pOptions.TimeOut;
int _numberOfPings = pOptions.numOfPings;
bool doNotFragment = pOptions.DontFragment;
int bufferSize = pOptions.bufferSize;
byte[] buf = new byte[bufferSize];
//long sumRoundtripTime=0;
onReply(new PingReplyEventArgs("ping started...",PingReplyTypes.info));
replyStats _replyStats = new replyStats(ipAddress);
PingReply reply = null;
try
{
onReply(new PingReplyEventArgs(pOptions.ToString(), PingReplyTypes.info));
//check DNS first as this may block for long time
IPAddress address;
HostParms hostParms = new HostParms(ipAddress, 4);
try
{
//is IP address
address = IPAddress.Parse(ipAddress);
hostParms.isValid = true;
}
catch
{
if (checkHost(ref hostParms))
ipAddress = hostParms.ipAddress.ToString();
}
if (!hostParms.isValid)
throw new PingUnknownHostException("Unkown host: " + ipAddress);
for (int ix = 0; ix < _numberOfPings; ix++)
{
reply = myPing.Send(ipAddress, buf, iTimeout, myPingOptions);
string sReply = "";
if (reply.Status == IPStatus.Success)
{
//sumRoundtripTime += reply.RoundTripTime;
_replyStats.add(1, 1, reply.RoundTripTime);
sReply = myResources.getReply(reply, ipAddress);
}
else if (reply.Status == IPStatus.DestinationHostUnreachable)
{
_replyStats.add(1, 0, reply.RoundTripTime);
throw new PingUnknownHostException("Destination unreachable");
}
else
{
_replyStats.add(1, 0, reply.RoundTripTime);
sReply = myResources.getReply(reply, ipAddress);
}
System.Diagnostics.Debug.WriteLine(sReply);
onReply(new PingReplyEventArgs(sReply));
}
onReply(new PingReplyEventArgs(_replyStats.ToString(), PingReplyTypes.info));
}
catch (PingUnknownHostException ex)
{
System.Diagnostics.Debug.WriteLine("PingUnknownHostException: " + ex.Message);
onReply(new PingReplyEventArgs("Unknown host: "+ ipAddress, PingReplyTypes.info));
}
catch (PingException ex)
{
System.Diagnostics.Debug.WriteLine("PingException: " + ex.Message);
}
catch (ThreadAbortException ex)
{
onReply(new PingReplyEventArgs("ping failed", PingReplyTypes.info));
Thread.CurrentThread.Abort();
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("PingException: " + ex.Message);
}
finally
{
onReply(new PingReplyEventArgs("done", PingReplyTypes.done));
System.Diagnostics.Debug.WriteLine("---thread ended");
}
}
