继续，SharpPcap抓包的源码，Test示例，太强大了
///<summary>
/// Basic capture example
///</summary>
[STAThread]
public static void Main(string[] args)
{
string ver = Tamir.IPLib.Version.GetVersionString();
/* Print SharpPcap version */
Console.WriteLine("SharpPcap {0}, Example3.BasicCap.cs", ver);
/* Retrieve the device list */
PcapDeviceList devices = SharpPcap.GetAllDevices();
/*If no device exists, print error */
if(devices.Count<1)
{
Console.WriteLine("No device found on this machine");
return;
}
Console.WriteLine();
Console.WriteLine("The following devices are available on this machine:");
Console.WriteLine("----------------------------------------------------");
Console.WriteLine();
int i=0;
/* Scan the list printing every entry */
foreach(PcapDevice dev in devices)
{
/* Description */
Console.WriteLine("{0}) {1}",i,dev.PcapDescription);
i++;
}
Console.WriteLine();
Console.Write("-- Please choose a device to capture: ");
i = int.Parse( Console.ReadLine() );
PcapDevice device = devices[i];
//Register our handler function to the 'packet arrival' event
device.PcapOnPacketArrival +=
new SharpPcap.PacketArrivalEvent( device_PcapOnPacketArrival );
//Open the device for capturing
//true -- means promiscuous mode
//1000 -- means a read wait of 1000ms
device.PcapOpen(true, 1000);
Console.WriteLine();
Console.WriteLine("-- Listenning on {0}, hit 'Enter' to stop...",
device.PcapDescription);
//Start the capturing process
device.PcapStartCapture();
//Wait for 'Enter' from the user.
Console.ReadLine();
//Stop the capturing process
device.PcapStopCapture();
Console.WriteLine("-- Capture stopped.");
//Close the pcap device
device.PcapClose();
}
///<summary>
/// Prints the time and length of each received packet
///</summary>
private static void device_PcapOnPacketArrival(object sender, Packet packet)
{
DateTime time = packet.PcapHeader.Date;
int len = packet.PcapHeader.PacketLength;
Console.WriteLine("{0}:{1}:{2},{3} Len={4}",
time.Hour, time.Minute, time.Second, time.Millisecond, len);
}
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