/* RHSBL checker.
   Copyright (C) 2006, 2007 Jan Rafaj

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>. */

#require dns
#require match_cidr

#pragma regex push +extended
func match_rhsbl(string email, string zone, string range)
     returns number
do
    if not (%email matches '@.+$'
             and %range matches '^([0-9]{1,3}\.){3}[0-9]{1,3}$')
        return 0
    fi

    return match_cidr (resolve ((domainpart %email), %zone), %range)
done
#pragma regex pop