From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pablo Neira <pablo@eurodev.net>
Subject: Re: ip(6)_tables.h: return type difference in ip(6)t_get_target
Date: Fri, 09 Sep 2005 00:54:03 +0200
Message-ID: <4320C10B.6000306@eurodev.net>
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To: Henning Peters <hpeters@math.uni-goettingen.de>
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Henning Peters wrote:
> This software is being written in c++. I want to avoid using the
> command-line to talk to iptables for efficiency. Including iptables
> headers and linking to libiptables seemed reasonable for me. But compiling
> with g++ (gcc version 3.3.4 (pre 3.3.5 20040809)) and linking to the
> c-libs (extern "C" stuff) gave me a compile error:

Two comments:

a) The internal library used by iptables (libiptc) is undocumented and
its use is discouraged.
b) iptables is entirely written in C, linking libiptc to C++ code isn't
a good a idea.

So, you should call iptables via system(). It isn't great but you'll
have less problems.

--
Pablo