On Jun 4, 2015, at 12:37 AM, Michal Sekletar <msekl...@redhat.com> wrote:
> Can't you just pcap_open more interfaces and for each pcap_t* you get call > pcap_fileno which will return back file descriptor for that capture. Then you > can use select/epoll to multiplex on those descriptors. Or, in newer versions of libpcap, call pcap_get_selectable_fd(), which, for devices on which you can capture but on which you *can't* use select()/poll()/epoll()/kqueues, returns -1. (Yes, they do exist; the DAG card drivers don't support it.) BTW, that's also one problem with having a single pcap_t refer to multiple devices - a lot of code out there expects a single descriptor on which it can do select()/poll()/epoll()/kqueues, and you can't do that if a single pcap_t refers to multiple devices. _______________________________________________ tcpdump-workers mailing list tcpdump-workers@lists.tcpdump.org https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers
