Re: AIX BPF Problems

[Shaun <delius () progsoc uts edu au>]

> > > Does it also set immediate mode with BIOCIMMEDIATE?
> >
> > Yes, in fact it does so before EVERY read.
>
> I.e., it does a BIOCIMMEDIATE ioctl call before every read call?

Yes, I can't explain why but every call to pcap_dispatch from my
application results (when linked with AIXs version of pcap) in a
BIOCIMMEDIATE call. The disassembly indicates that pcap_read performs this
call, whether you like it or not.

> That's grotesque.  If it's unnecessary, it's a bogosity in their
> libpcap; if it *is* necessary, it's a bogosity in their BPF
> implementation.

I'm not convinced it is necessary since tcpdump (which is not linked with
this pcap) does not do so.

Cheers,
Shaun

-
This is the TCPDUMP workers list. It is archived at
http://www.tcpdump.org/lists/workers/index.html
To unsubscribe use mailto:tcpdump-workers-request () tcpdump org?body=unsubscribe