given a struct sock, how to find pid of process that owns it?

I'm working on a small app similar to netstat that only cares about unix 
sockets.
I can easily walk /proc/net/unix, but to find the owner of the socket I 
need to scan /proc, which gets expensive.
Accordingly, I'd like to extend /proc/net/unix to also dump out the pid 
of the process that owns the socket.  The only thing is, I can't seem to 
figure out how to find the pid of the socket owner given a pointer to 
the socket struct.
Any tips?  Is it even there?

Thanks,

Chris


--
Chris Friesen                    | MailStop: 043/33/F10
Nortel Networks                  | work: (613) 765-0557
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