Re: [jnetpcap-users] JBufferHandler and loopInBackground

[Kamran Y. <kam...@gm...>]

Thanks Maor. I have actually implemented this use Thread itself but since
it provides the facility I thought of using it but if I do not find any
solution I will stick to my thread.


On Sun, Apr 7, 2013 at 12:45 PM, Maor Bril <mao...@gm...> wrote:

> Just a thought,  why not use a daemon thread for that. Let it block, but
> only that thread.
> On Apr 7, 2013 10:10 AM, "Kamran Yadav" <kam...@gm...> wrote:
>
>> I am planning to use jnetpcap-1.3 to sniff packets on the machine. My
>> requirement is to sniff all packets and store some meta-data about each
>> packet in the database for further processing.
>>
>> I picked up the Classic example which works. I want to loop in background
>> so using PcapUtils.loopInBackground and since it uses JBufferHandler, I
>> provided one but it never enters the nextPacket method.
>>
>> My commented code works but since the pcap.loop() method is a blocking
>> method it does not suit my requirement as I am listening on all the devices
>> of the machine.
>>
>>     public static void main(final String[] args) throws InterruptedException {
>>         List alldevs = new ArrayList();
>>         StringBuilder errbuf = new StringBuilder();
>>
>>         int findStatus = Pcap.findAllDevs(alldevs, errbuf);
>>         for (PcapIf device : alldevs) {
>>             Pcap pcap = Pcap.openLive(device.getName(), 64 * 1024, Pcap.MODE_PROMISCUOUS, 10000, errbuf);
>>
>>             /**PcapPacketHandler jpacketHandler = new PcapPacketHandler() {
>>                 public void nextPacket(final PcapPacket packet, final String message) {
>>                     System.out.println("reached here");
>>                 }
>>             };
>>             pcap.loop(-1, jpacketHandler, null);*/
>>
>>             JBufferHandler jBufferHandler = new JBufferHandler() {
>>                 public void nextPacket(final PcapHeader header, final JBuffer buffer, final String message) {
>>                     System.out.println("reached here");
>>                 }
>>             };
>>
>>             PcapUtils.loopInBackground(pcap, -1, jBufferHandler, null);
>>         }
>>     }
>>
>>
>>
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