udhcpc.script

#!/bin/sh
[ -z "$1" ] && echo "Error: should be run by udhcpc" && exit 1

#set -x

setup_interface() {
	env
	# Hack to get $network:
	network=$(echo $ip |(IFS=. read -r i1 i2 i3 i4
        	echo ${subnet:-255.255.255.0}|(IFS=. read -r m1 m2 m3 m4;
			printf "%d.%d.%d.%d\n" "$((i1 & m1))" "$((i2 & m2))" "$((i3 & m3))" "$((i4 & m4))")))

	echo "udhcpc: ifconfig $interface $ip netmask ${subnet:-255.255.255.0} broadcast ${broadcast:-+} gateway $router"
	ip addr add $ip/$mask dev $interface
	ip route add $network/$mask dev $interface table $interface
	ip route add default via $router dev $interface table $interface
	ip rule add from $ip table $interface
	ip route del $network/$mask dev $interface
}


applied=
case "$1" in
	deconfig)
		ifconfig "$interface" 0.0.0.0
		while ip rule del table $interface;do echo Deleting rule from ip rules;done &>/dev/null
	;;
	renew)
		setup_interface update
	;;
	bound)
		setup_interface ifup
	;;
esac

# user rules
[ -f /etc/udhcpc.user ] && . /etc/udhcpc.user

exit 0