On Dec 5, 2014, at 3:15 AM, Thomas Habets <tho...@habets.se> wrote:
> On 4 December 2014 at 20:01, Guy Harris <g...@alum.mit.edu> wrote:
>> If your program needs to have packets delivered as soon as they arrive, it
>> should, if the version of libpcap with which it's being built has the
>> pcap_set_immediate_mode() API
>
> Thanks. I switched to the pcap_create() API from pcap_open_live() (my
> code predates pcap_create()) and set immediate mode, and that did it.
I'd move the BIOCIMMEDIATE call into try_pcap_open_live(), and do it if
1) BIOCIMMEDIATE is defined and
2) either a) you don't have pcap_create() or b) you do but don't have
pcap_set_immediate_mode()
as you don't have to use it on BPF systems that *do* have
pcap_set_immediate_mode() as that call will do it for you (or, rather, will
cause it to be done at pcap_activate() time).
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