private static void ShowHelp(AppOptions appOptions)
{
Console.WriteLine(@" __.---,__ ");
Console.WriteLine(@" .-` '-,__ ");
Console.WriteLine(@" &/ ',_\ _\ ");
Console.WriteLine(@" / '',_ ");
Console.WriteLine(@" | . ("") ");
Console.WriteLine(@" |__.`'-..--|__|--`` Snifter ");
Console.WriteLine();
Console.WriteLine("Usage:");
Console.WriteLine("snifter -i x -f filename");
Console.WriteLine();
Console.WriteLine(appOptions.OptionsHelpText);
Console.WriteLine();
var nicInfos = NetworkInterfaceInfo.GetInterfaces();
Console.WriteLine("ID\tIP Address\tName");
Console.WriteLine("===========================================================");
foreach (var nicInfo in nicInfos)
{
Console.WriteLine("{0}\t{1}\t{2}", nicInfo.Index, nicInfo.IPAddress, nicInfo.Name);
}
}
static void Main(string[] args)
{
// You can only create raw sockets with elevated privileges
if (!IsElevated())
{
Console.WriteLine("Please run with elevated prilileges");
Environment.Exit(1);
}
var appOptions = ParseCommandLine(args);
if (appOptions.ShowHelp)
{
ShowHelp(appOptions);
Environment.Exit(0);
}
var nics = NetworkInterfaceInfo.GetInterfaces();
if ((!appOptions.InterfaceId.HasValue) ||
(appOptions.InterfaceId > nics.Count - 1) ||
(appOptions.InterfaceId < 0))
{
Console.WriteLine("Invalid interface ID");
ShowHelp(appOptions);
Environment.Exit(3);
}
var filters = appOptions.BuildFilters();
var nic = nics[appOptions.InterfaceId.Value];
// Start capturing packets
var output = new PcapNgFileOutput(nic, appOptions.Filename);
var sniffer = new SocketSniffer(nic, filters, output);
sniffer.Start();
Console.WriteLine();
Console.WriteLine("Capturing on interface {0} ({1})", nic.Name, nic.IPAddress);
Console.WriteLine("Saving to file {0}", appOptions.Filename);
Console.WriteLine("Press CTRL+C to stop");
Console.WriteLine();
Console.WriteLine();
Console.WriteLine();
// Shutdown gracefully on CTRL+C
Console.CancelKeyPress += ConsoleOnCancelKeyPress;
while (!isStopping)
{
Console.SetCursorPosition(0, Console.CursorTop - 2);
Console.WriteLine("Packets Observed: {0}", sniffer.PacketsObserved);
Console.WriteLine("Packets Captured: {0}", sniffer.PacketsCaptured);
Thread.Sleep(200);
}
sniffer.Stop();
}
private static void ShowHelp(AppOptions appOptions)
{
Console.WriteLine("Usage:");
Console.WriteLine("snifter -i x -f filename");
Console.WriteLine();
Console.WriteLine(appOptions.OptionsHelpText);
Console.WriteLine();
var nicInfos = NetworkInterfaceInfo.GetInterfaces();
Console.WriteLine("ID\tIP Address\tName");
Console.WriteLine("===========================================================");
foreach (var nicInfo in nicInfos)
{
Console.WriteLine("{0}\t{1}\t{2}", nicInfo.Index, nicInfo.IPAddress, nicInfo.Name);
}
}