#!/bin/sh
######################################################################
## $Id: sample-etc_dhcpc_dhcpcd-eth0.exe 8 2006-06-14 19:51:39Z wimpunk $
######################################################################
PATH=/usr/sbin:${PATH}

resolv=/etc/resolv.dhcp

set -e
trap "[ $? = 0 ] && logger -t dhcpcd.sh 'finished' || logger -t dhcpcd.sh 'failed'; exit 0" EXIT
logger -t dhcpcd.sh "started"

## update the DNS server unless the IP address is a private address
## that may be used as an internal LAN address. This may be true if
## other interfaces are assigned private addresses from internal
## DHCP server.

# source informations provided by dhcp server
[ -f "$1" ] && . "$1"
[ "$2" = "down" ] && exit 0

case "$IPADDR" in
10.*)   	;;
172.1[6-9].* | 172.2[0-9].* | 172.3[0-1].*)	;;
192.168.*)	;;
*)
	# update dns servers
	if [ -n "$DNSSERVERS" ]; then
		logger -t dhcpcd.sh "updating $resolv"
		cat < /dev/null > "$resolv"
		for n in $DNSSERVERS; do
			echo "nameserver $n" >> "$resolv"
		done
	fi

	# update address in dynamic dns 
	logger -t dhcpcd.sh "updating address in dynamic dns"
	ddclient -daemon=0 -syslog -use=ip -ip="$IPADDR" >/dev/null 2>&1
	;;
esac