Files
bpfire/src/initscripts/helper/getdnsfromdhcpc.pl
2010-07-08 23:55:21 +02:00

48 lines
2.0 KiB
Perl

#!/usr/bin/perl
###############################################################################
# #
# IPFire.org - A linux based firewall #
# Copyright (C) 2007 Michael Tremer & Christian Schmidt #
# #
# 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 of the License, 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/>. #
# #
###############################################################################
use strict;
require '/var/ipfire/general-functions.pl';
my $count = $ARGV[0];
my ($dhcp, $dns, @alldns, %dhcpc);
if ($count eq "" || $count < 1) {
die "Bad DNS number given"; }
if (open(FILE, "${General::swroot}/red/iface")) {
my $iface = <FILE>;
close FILE;
chomp ($iface);
if (!&General::readhash("${General::swroot}/dhcpc/dhcpcd-$iface.info", \%dhcpc)) {
die "Could not open dhcpc info file";
}
} else {
die "Could not open interface file";
}
$dns = $dhcpc{'domain_name_servers'};
@alldns = split(' ', $dns);
print "$alldns[$count - 1]\n";