Hi Mark,
I am not using recvfrom... I simply use recv

In other words, I create the server UDP socket, listen
on a port then enter into a while loop just doing a
recv.  Now the thing is, many different clients are
sending packets to the server, and I need to reply to
each of them at a later time, so I need to get their
IP addresses and store it away so I can do a sendto at
a later time

Thanks
Lee
--- Mark Hahn <[EMAIL PROTECTED]> wrote:
> > This is a UDP server ... so I do not use accept, I
> > simply have a server loop that does a "recv" ...
> > 
> > So the server does a recvfrom and then a sendto on
> the
> 
> if you're using recvfrom, why aren't you simply
> providing 
> a buffer for the "from" argument (and appropriate
> fromlen).
> read the fine man page!
> 


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