#!/usr/bin/php -q
<?php

##########################################################################
# MachineConf 0.1
# by Mathew Binkley <mathew.binkley@vanderbilt.edu>
#
# This program is intended to install machine-specific configuration files
# after using SystemImager to install a system.  It does so by copying 
# a machine-specific file to the appropriate file name.  For example, 
# after figuring out that we are on box "bar" and we need a "/etc/foo"
# file and a file named "/etc/foo.bar" exists, this script will do some
# thinking, and then execute:
#
#   cp -f /etc/foo.bar /etc/foo
#
# To run this program on boot, make sure MachineConf is in your /sbin 
# directory and add the following line to the top of your
# /etc/rc.d/rc file:
#
# action $"Enabling machine-specific configuration files: " /sbin/MachineConf
#
##########################################################################

# MAC Addresses for all the machines we need to consider
$Machine["00:03:CE:01:A6:10"] = "vmpbox1";
$Machine["00:03:CE:01:B1:10"] = "vmpwww";

# This is the list of files we want to check for
$file[] = "/etc/dhcpd.conf";
#$file[] = "/etc/exports";

# Let's find out which machine we're on
$exec = exec("/sbin/ifconfig | /bin/grep HWaddr", $result);
for ($i = 0; $i < count($result); $i++) {
	$array = explode("HWaddr ", $result[$i]);
	$MAC = trim($array[1]);
	if ($This_Machine = $Machine[$MAC]) break;
}

# Now if a file doesn't exist, enable the file by copying the
# machine-specific file to the right location
for ($i = 0; $i < count($file); $i++) {
	$filename = $file[$i] . "." . $This_Machine;
	if (file_exists($filename)) {
		$exec = exec("/bin/cp -f $filename $file[$i]");
	}
}

?>