#!/bin/sh
#Copyright (c) 2001, University of Washington, UW/EE 

# do we want to put the bunch in /var/nikola/bunch too?
if [ "x$1" = "x-bunch" ]
then
	dobunch=true
else
	dobunch=false
fi

#
# Loop through each interface on the host, matching them against
# the hostmap list. If we find a match, create the hosts, network,
# and ifcfg-$interface files. This allows multi-homed hosts to
# be configured easily. The last match will win for the
# /etc/sysconfig/network file, so that will be the one that determines
# the host's name and NIS domain.
#
# We use the tr to force everything to be in lower case, just in case.
#
for interface in `./pullmac.sh | cut -d" " -f1`
do
	bunch="" # make sure it's empty going in
	mac=`./pullmac.sh | grep -i $interface | tr [A-Z] [a-z] | \
		 cut -d' ' -f2`
	IP=`grep -i "^$mac" hostmap | awk '{print $2}'`
	HN=`grep -i "^$mac" hostmap | awk '{print $3}' | \
		tr [A-Z] [a-z]`
	Short_HN=`grep -i "^$mac" hostmap | awk '{print $4}' | \
		tr [A-Z] [a-z]`
	bunch=`grep -i "^$mac" hostmap | awk '{print $5}' | \
		tr [A-Z] [a-z]`

	#
	# if we have a bunchname, set the NIS domain. Since RCS
	# (and possibly others) don't use the same bunch as their
	# NIS domain, we can't just do a direct write. This case
	# statement lets us intercept and set if it needs to be
	# different. The default case is to use the bunchname for
	# the NIS domain as well.
	#
	if [ "x$bunch" != "x" ]
	then
		# we have a bunch name, that will determine the NIS domain.
		case $bunch in
			"rcs" ) NISDOMAIN="rcsnet" ;;
			* ) NISDOMAIN=$bunch ;;
		esac
	fi

	# we know the host's IP, lets extrapolate the network, 
	# broadcast, and gateway
	network=`echo $IP | cut -d"." -f1,2,3`
	NETWORK="${network}.0"
	GATEWAY="${network}.100"
	BROADCAST="${network}.255"
			
	#
	# we have data, lets spit out the files.
	#
	if [ "x$HN" != "x" ]
	then
		cat > /etc/sysconfig/network << EOF
NETWORKING=yes
HOSTNAME=$HN
GATEWAY=$GATEWAY
NISDOMAIN=$NISDOMAIN
EOF

		cat >> /etc/hosts  << EOF
$IP	$HN	$Short_HN
EOF

		cat > /etc/sysconfig/network-scripts/ifcfg-$interface << EOF
DEVICE=$interface
ONBOOT=yes
BOOTPROTO=none
BROADCAST=$BROADCAST
NETWORK=$NETWORK
NETMASK=255.255.255.0
IPADDR=$IP
USERCTL=no
EOF

	fi

	#
	# clear all the variables to make sure we don't pick up old
	# values on the next cycle. We can't reset bunch, since we
	# use it outside of the loop.
	#

	mac=""
	IP=""
	HN=""
	Short_HN=""
	network=""
	NETWORK=""
	GATEWAY=""
	NISDOMAIN=""
	BROADCAST=""

done

#
# To set the host's bunch name, use only the last entry, if we have a bunch
# and were told to do it.
#
if [ "x$dobunch" = "xtrue" -a "x$bunch" != "x" ]
then
	echo $bunch > /var/nikola/bunch
fi