private void btnStart_Click(object sender, EventArgs e)
{
try
{
if (ScanType.SelectedItem.ToString() == "Dns Entries")
{
sercher = new Thread(new ThreadStart(FindUsingDns));
// add.Items.Clear();
try
{
IPAddress from = IPAddress.Parse(ipFrom.Text);
IPAddress to = IPAddress.Parse(ipTo.Text);
}
catch (FormatException fe)
{
MessageBox.Show(fe.Message);
return;
}
sercher.Name = "Network searching thread";
sercher.Start();
//add.Items.Add(" -->> >>> Please wait while processing is done <<< <<--");
IPScan.AppendText(" -->> >>> Please wait while processing is done <<< <<--" + "\n");
//Thread.Sleep(1);
}
else if (ScanType.SelectedItem.ToString() == "Ping Scan")
{
// MessageBox.Show("You Chose Ping Scan");
sercher = new Thread(new ThreadStart(FindUsingPing));
// add.Items.Clear();
try
{
IPAddress from = IPAddress.Parse(ipFrom.Text);
IPAddress to = IPAddress.Parse(ipTo.Text);
}
catch (FormatException fe)
{
MessageBox.Show(fe.Message);
return;
}
sercher.Name = "Network searching thread";
sercher.Start();
// add.Items.Add(" -->> >>> Please wait while processing is done <<< <<--");
IPScan.AppendText(" -->> >>> Please wait while processing is done <<< <<--" + "\n");
//Thread.Sleep(1);
}
// else { MessageBox.Show("Please Choose The Scan Type"); }
}
catch { MessageBox.Show("Please Choose The Scan Type"); }
}
void FindUsingPing()
{
string host = null; int attempts = 1;
//int timeout=0; //Time to wait for replies In Milliseconds
//add.Items.Add(" -- >>> >> >>> Found station <<< << <<< -- ");
//add.Items.Add("Host Name IP Address");
IPScan.AppendText(" -- >>> >> >>> Found station <<< << <<< -- " + "\n");
IPScan.AppendText("Host Name IP Address" + "\n");
int lastF = ipFrom.Text.LastIndexOf(".");
int lastT = ipTo.Text.LastIndexOf(".");
string frm = ipFrom.Text.Substring(lastF + 1);
string tto = ipTo.Text.Substring(lastT + 1);
int result = 0;
// Store values from the NumericUpDown to variables
StartIP = int.Parse(frm);
EndIP = int.Parse(tto);;
// Reset the progress bar
prgIPScanning.Value = 0;
// Set the max value of the progress bar
prgIPScanning.Maximum = EndIP - StartIP + 1;
//MessageBox.Show("From"+frm+"To "+tto+" Maximum"+(EndIP-StartIP+1));
// Let the user know the application is busy
Cursor.Current = Cursors.WaitCursor;
Ping ping = new Ping();
PingReply pingReply;
//-----------------------------------------------------------------------------------
System.Diagnostics.Debug.WriteLine(frm + " " + tto);
for (int i = int.Parse(frm); i <= int.Parse(tto); i++)
{
try
{
string address = ipTo.Text.Substring(0, lastT + 1);
System.Diagnostics.Debug.WriteLine(ipTo.Text.Substring(0, lastT + 1) + i);
IPHostEntry he = Dns.GetHostByAddress(address + i);
// IPHostEntry Ipe = Dns.GetHostEntry();
////add.Items.Add(he.HostName + " " + address + i);
host = address + i.ToString();
for (int j = 0; j < attempts; j++)
{
try
{
// pingReply = ping.Send(host, timeout);
pingReply = ping.Send(host);
// If there is a successful ping then return true.
if (pingReply != null &&
pingReply.Status == System.Net.NetworkInformation.IPStatus.Success)
{
//return true;
// add.Items.Add(he.HostName + " " + address + i);
IPScan.AppendText(he.HostName + " " + address + i + "\n");
}
}
catch
{
// Do nothing and let it try again until the attempts are exausted.
// Exceptions are thrown for normal ping failurs like address lookup
// failed. For this reason we are supressing errors.
}
}
// Return false if we can't successfully ping the server after several attempts.
// return false;
// add.Items.Add(he.HostName+" "+address+i.ToString());
result += 1;
}
catch (SocketException)
{
// in cazul unei erori
}
catch (Exception)
{
// previne bloacarea programului
}
prgIPScanning.PerformStep();
}
MessageBox.Show("IP Scanning Done..!");
// Set the cursor back to normal
Cursor.Current = Cursors.Arrow;
//-----------------------------------------------------------------------------------------------------------
}
/// <summary>
///
/// </summary>
void FindUsingDns() //
{
// add.Items.Add(" -- >>> >> >>> Found station <<< << <<< -- ");
// add.Items.Add("Host Name IP Address");
IPScan.AppendText(" -- >>> >> >>> Found station <<< << <<< -- " + "\n");
IPScan.AppendText("Host Name IP Address" + "\n");
int lastF = ipFrom.Text.LastIndexOf(".");
int lastT = ipTo.Text.LastIndexOf(".");
string frm = ipFrom.Text.Substring(lastF + 1);
string tto = ipTo.Text.Substring(lastT + 1);
int result = 0;
// Store values from the NumericUpDown to variables
StartIP = int.Parse(frm);
EndIP = int.Parse(tto);
// Reset the progress bar
prgIPScanning.Value = 0;
// Set the max value of the progress bar
prgIPScanning.Maximum = EndIP - StartIP + 1;
MessageBox.Show("From" + frm + "To " + tto + " Maximum" + (EndIP - StartIP + 1));
// Let the user know the application is busy
Cursor.Current = Cursors.WaitCursor;
System.Diagnostics.Debug.WriteLine(frm + " " + tto);
for (int i = int.Parse(frm); i <= int.Parse(tto); i++)
{
try
{
string address = ipTo.Text.Substring(0, lastT + 1);
System.Diagnostics.Debug.WriteLine(ipTo.Text.Substring(0, lastT + 1) + i);
IPHostEntry he = Dns.GetHostByAddress(address + i);
// IPHostEntry Ipe = Dns.GetHostEntry();
// add.Items.Add(he.HostName+" "+address+i);
IPScan.AppendText(he.HostName + " " + address + i + "\n");
//foreach (DataGridView row in ScanGrid.Rows)
//{
// // ScanGrid.UpdateCellValue(0,0) = address + i;
//}
// add.Items.Add(he.HostName+" "+address+i.ToString());
result += 1;
}
catch (SocketException)
{
// in cazul unei erori
}
catch (Exception)
{
// previne bloacarea programului
}
prgIPScanning.PerformStep();
}
// Set the cursor back to normal
Cursor.Current = Cursors.Arrow;
}
