nnrpd: adding blacklistd support

[Julien ÉLIE]

Hi Andreas,

> FreeBSD ships the software blacklistd, originally from NetBSD, that
> allows blocking brute force attacks using the firewall. I've written a
> small patch running on Lysator's news server adding support to nnrpd
> for automatic blocking.
> 
> I'm writing this to probe whether there is any interest in having the
> patch upstreamed. In its current form, the blacklist code is
> unconditionally added but can of course be put behind an option to the
> configure script or a FreeBSD define of some kind.
> 
> See the attached file for the patch.

Thanks for the patch.  I've had a look, and it seems that the 
integration of blacklistd is pretty straight-forward.
I think it deserves being integrated into INN, with a proper 
--with-blacklistd Autoconf probe (instead of an error if blacklistd is 
not found).  I'll have a look.  As I do not run FreeBSD myself, it would 
be great if you could somehow test it.

-- 
Julien ÉLIE

« L'éternité, c'est long, surtout vers la fin. » (Woody Allen)