#!/usr/bin/perl -w

###############################################################################
#
# Copyright 2002 Point Clark Networks.
#
# 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.
#
# 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.
#
###############################################################################

use strict;
use lib '/usr/share/system/scripts';
use Getopt::Long;
require 'functions';

# Usual security measures... see "perlsec" manual page for details.
#------------------------------------------------------------------

$ENV {'PATH'} = '/sbin';
$ENV {'SHELL'} = '/bin/bash';
delete $ENV {'ENV', 'BASH_ENV'};

if ($< != 0) {
	print("You must be root to update system files... exiting.\n");
	exit;
}

my $ip;
my $netmask;
my %opts;
my $f_dhcpd = "/etc/dhcpd.conf";

# Command line options
#---------------------

GetOptions(
	"ip=s" => \$ip,
	"netmask=s" => \$netmask,
);

if (!$ip || !$netmask || (CheckIP($ip) != 0) || (CheckIP($netmask) != 0)) {
	print("Invalid IP/Netmask... using default 192.168.1.0/255.255.255.0\n");
	$ip = "192.168.1.0";
	$netmask = "255.255.255.0";
}

SetDHCP($ip, $netmask);
