public static Hashtable QueryConfig()
{
Hashtable items = new Hashtable();
int requiredBufferLength = 0;
HttpApi.Error error = QueryServiceConfig(IntPtr.Zero, 0, out requiredBufferLength);
if ((error != HttpApi.Error.ERROR_FILE_NOT_FOUND) && (error != HttpApi.Error.ERROR_NOT_FOUND))
{
if (error != HttpApi.Error.ERROR_INSUFFICIENT_BUFFER)
{
throw new HttpApiException(error, "HttpQueryServiceConfiguration (IPLISTEN) failed. Error = " + error);
}
IntPtr pOutput = Marshal.AllocHGlobal(requiredBufferLength);
try
{
HttpApi.ZeroMemory(pOutput, requiredBufferLength);
error = QueryServiceConfig(pOutput, requiredBufferLength, out requiredBufferLength);
if (error != HttpApi.Error.NO_ERROR)
{
throw new HttpApiException(error, "HttpQueryServiceConfiguration (IPLISTEN) failed. Error = " + error);
}
HttpApi.HTTP_SERVICE_CONFIG_IP_LISTEN_QUERY output =
(HttpApi.HTTP_SERVICE_CONFIG_IP_LISTEN_QUERY)Marshal.PtrToStructure(pOutput, typeof(HttpApi.HTTP_SERVICE_CONFIG_IP_LISTEN_QUERY));
int addrSize = Marshal.SizeOf(typeof(HttpApi.SOCKADDR_STORAGE));
IntPtr pAddress = HttpApi.IncIntPtr(pOutput, 8); // Increment past the addrcount member and padding
for (int i = 0; i < output.AddrCount; i++)
{
IpListenConfigItem item = new IpListenConfigItem();
item.Address = new IPAddress((long)Marshal.ReadInt32(pAddress, 4) & 0x00000000ffffffff);
item.Status = ModifiedStatus.Unmodified;
items.Add(item.Key, item);
pAddress = HttpApi.IncIntPtr(pAddress, addrSize); // Increment to the next IP address
}
}
finally
{
Marshal.FreeHGlobal(pOutput);
}
}
return(items);
}
private void addIpListenerButton_Click(object sender, System.EventArgs e)
{
try
{
using (InputBox input = new InputBox("New IP Listener", "Please enter an IP Address"))
{
if (input.ShowDialog(this) == DialogResult.OK)
{
IPAddress address = IPAddress.Parse(input.UserInput);
IpListenConfigItem newItem = new IpListenConfigItem();
newItem.Address = address;
newItem.Status = ModifiedStatus.Added;
if (_ipListenItems.Contains(newItem.Key))
{
MessageBox.Show(this, "The IP address you entered is already configured.", "Invalid Input");
}
else
{
_ipListenItems.Add(newItem.Key, newItem);
ipListenersListView.Items.Add(newItem);
applyButton.Enabled = true;
}
}
}
}
catch (FormatException)
{
MessageBox.Show(this, "The data you entered was not formatted correctly. Please enter a correctly formatted IP address.", "Invalid Input");
}
catch (Exception ex)
{
DisplayError(ex);
}
finally
{
removeIpListenerButton.Enabled = ipListenersListView.SelectedItems.Count > 0;
}
}
private void Load_IpListenItems()
{
_ipListenItems = IpListenConfigItem.QueryConfig();
PopulateConfigListView(_ipListenItems, ipListenersListView);
}