Packet Filter using Unix Socket

I had by mistake posted in the C programming board,

http://cboard.cprogramming.com/showt...threadid=48181

Please take a look at the link and help me out.

Thanks.

Do you need to call:

Code:

---

setsockopt(handle->fd, SOL_SOCKET, SO_ATTACH_FILTER,
                              &fcode, sizeof(fcode))

---

Search: pf_packet packet filter

With SO_ATTACH_FILTER you will have to specify the filter code but i want to block all IP packets and send only the packets, which may be useful.

(Definition of useful may be dependent on data and not on any header information)