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/* DNSBL checker.
Copyright (C) 2006, 2007 Jan Rafaj
Copyright (C) 2008-2011, 2015-2016 Sergey Poznyakoff
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/>. */
module 'match_dnsbl'.
require 'status'
require 'dns'
require 'match_cidr'
#pragma regex push +extended
func match_dnsbl(string address, string zone, string iprange)
returns number
do
if iprange = 'ANY'
set iprange '127.0.0.0/8'
fi
if address matches
'^([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$'
string res resolve ("\4.\3.\2.\1", zone)
if res == "0"
return 0
fi
if match_cidr (res, iprange)
return 1
else
return 0
fi
else
throw e_invip "%address: invalid IP address"
fi
# never reached
done
#pragma regex pop
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