* When opening a live pcap, obtain the list of supported DLTs from
the BPF.
* Add pcap_list_datalinks() to obtain a list of supported DLTs
supported by the interface associated with the pcap descriptor.
* Add pcap_set_datalink() to set the current DLT of the pcap.
* Bump shlib 1.2 -> 1.3; new functions added.
From David Young <dyoung@ojctech.com>, with some minor changes by me.
"tcp" will match both IPv4 TCP and IPv6 TCP.
"ip6" will match IPv6.
you can chase header chain by using "protochain" instead of "proto"
(but bpf code is not optimizable in this case)
commit to tcpdump will follow.
I've sent this fix to LBL guys to get no response. I wonder why it was.
christos