#!/bin/bash
# 
# Wizard
#
# Copyright (C) 2000 Mandrakesoft.
# 
# 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 2
# of the License, or (at your option) any later version.
# See file LICENSE for further informations on licensing terms.
# 
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
# 
# Authors: Jerome Dumonteil, Maurizio De Cecco, Enzo Maggi
# icons: Helene Durosini <ln@mandrakesoft.com>
# <corporate@mandrakesoft.com> http://www.mandrakesoft.com

# script for wizard external dns configuration
#
# checking if the provided network address is correct

# ip is tested as ip=a.b.c.d

if [ -n "${wiz_ext_dns1}" ]; then

a=${wiz_ext_dns1%%.*}
b=`echo ${wiz_ext_dns1}|/bin/sed -n -e 's/^[0-9]\{1,3\}\.\([0-9]\{1,3\}\)\..*$/\1/p'`
c=`echo ${wiz_ext_dns1}|/bin/sed -n -e 's/^[0-9]\{1,3\}\.[0-9]\{1,3\}\.\([0-9]\{1,3\}\)\..*$/\1/p'`
d=${wiz_ext_dns1##*.}

echo_debug "ip1 -$a-$b-$c-$d-"

if [ -z "$a" -o -z "$b" -o -z "$c" -o -z "$d" ]; then
	echo_debug "incomplete ip"
	exit 1
fi 

if [ $a -gt 255 -o $b -gt 255 -o $c -gt 255 -o $d -gt 255 ]; then
	echo_debug "not a network ip"
	exit 1
fi

fi


if [ -n "${wiz_ext_dns2}" ]; then

a=${wiz_ext_dns2%%.*}
b=`echo ${wiz_ext_dns2}|/bin/sed -n -e 's/^[0-9]\{1,3\}\.\([0-9]\{1,3\}\)\..*$/\1/p'`
c=`echo ${wiz_ext_dns2}|/bin/sed -n -e 's/^[0-9]\{1,3\}\.[0-9]\{1,3\}\.\([0-9]\{1,3\}\)\..*$/\1/p'`
d=${wiz_ext_dns2##*.}

echo_debug "ip2 -$a-$b-$c-$d-"

if [ -z "$a" -o -z "$b" -o -z "$c" -o -z "$d" ]; then
	echo_debug "incomplete ip"
	exit 1
fi 

if [ $a -gt 255 -o $b -gt 255 -o $c -gt 255 -o $d -gt 255 ]; then
	echo_debug "not a network ip"
	exit 1
fi

fi

if [ -z "${wiz_ext_dns1}" -a -z "${wiz_ext_dns2}" ]; then
	echo_debug "warning, no DNS address"
	exit 2
fi
	

# all seems to be ok
exit 10