private bool SaveAdvancedOptions()
{
// Validate input.
var regex = new Regex("^\\d+$");
// Validate TTL.
if (!regex.IsMatch(TTL.Text) || int.Parse(TTL.Text) < 1 || int.Parse(TTL.Text) > 255)
{
AdvancedTab.Focus();
MessageBox.Show(
"Please enter a valid TTL between 1 and 255.",
"vmPing Error",
MessageBoxButton.OK,
MessageBoxImage.Error);
TTL.Focus();
return(false);
}
// Apply TTL.
ApplicationOptions.TTL = int.Parse(TTL.Text);
// Validate packet size.
if (PacketSizeOption.IsChecked == true)
{
if (!regex.IsMatch(PacketSize.Text) || int.Parse(PacketSize.Text) < 0 || int.Parse(PacketSize.Text) > 65500)
{
AdvancedTab.Focus();
MessageBox.Show(
"Please enter a valid ICMP data size between 0 and 65,500.",
"vmPing Error",
MessageBoxButton.OK,
MessageBoxImage.Error);
PacketSize.Focus();
return(false);
}
// Apply packet size.
ApplicationOptions.Buffer = new byte[int.Parse(PacketSize.Text)];
ApplicationOptions.UseCustomBuffer = false;
// Fill buffer with default text.
if (ApplicationOptions.Buffer.Length >= 33)
{
Buffer.BlockCopy(Encoding.ASCII.GetBytes(Constants.PING_DATA), 0, ApplicationOptions.Buffer, 0, 33);
}
}
else
{
// Use custom packet data.
ApplicationOptions.Buffer = Encoding.ASCII.GetBytes(PacketData.Text);
ApplicationOptions.UseCustomBuffer = true;
}
// Apply fragment / don't fragment option.
if (DontFragment.IsChecked == true)
{
ApplicationOptions.DontFragment = true;
}
else
{
ApplicationOptions.DontFragment = false;
}
// Update ping options (TTL / Don't fragment settings)
ApplicationOptions.UpdatePingOptions();
return(true);
}