Date: Mon, 16 Mar 2009 14:58:22 +0100
From: Matthias Kaehlcke <matthias@kaehlcke.net>
To: Cliffe <cliffe@ii.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Getting the port numbers and IP address from struct socket
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El Mon, Mar 16, 2009 at 10:03:31PM +0800 Cliffe ha dit:

> This may be a simple question, but how do I determine the port numbers,  
> and IP addresses from a (struct socket)socket?

i'm far from being a networking expert, so i might be plain
wrong. after having a look at the kernel sources i think it works in
the following way:

struct inet_sock *inet = inet_sk(socket->sk);

the data you are looking for are:

inet->saddr
inet->sport
inet->daddr
inet->dport

btw: for these kind of questions it is better to write to the
kernelnewbies list (kernelnewbies@nl.linux.org)

best regards

-- 
Matthias Kaehlcke
Embedded Linux Engineer
Barcelona

      Anyone who has never made a mistake has never tried anything new
                            (Albert Einstein)
                                                                 .''`.
    using free software / Debian GNU/Linux | http://debian.org  : :'  :
                                                                `. `'`
gpg --keyserver pgp.mit.edu --recv-keys 47D8E5D4                  `-
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