Rawsock bpf mambo jambo?

[Kamal R. Prasad]

bpf is a packet filter -which can be used to snoop on
all packets at the interface at the link level. You
would have to create a socket to do I/O, but the
snooper can mess around with the existing connection.

regards
-kamal

--- DJF <deiif at yahoo.com> wrote:

> Hi everybody,
> 
> I've recently been looking into raw socket
> programming. However there's still a question that
> remains. Maybe it's just a case of RTFM, if so point
> me to a good manual on the topic. 
> The man pages indicate that you can do read and
> write operations with rawsock aswell as bpf.
> However, in all of the source codes I found, a raw
> socket was used to write to, and bpf was used to
> read from the interface.
> 
> What's the advantage in using the rawsock bpf
> combination instead of
> bpf (or raw socket) only?
> 
> Thx in advance,
> 	dave
> 
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