LinuxQuestions.org - DDclient slack13 dhcpcd.sh vs dhcpcd.eth0.exe question

In slack13 there is a dhcpcd.sh script like this:

Code:

#!/bin/sh

#

#  This is a sample /etc/dhcpc/dhcpcd.sh script.

#  /etc/dhcpc/dhcpcd.sh script is executed by dhcpcd daemon

#  any time it configures or shuts down interface.

#  The following parameters are passed to the dhcpcd.sh script:

#  $1 = HostInfoFilePath, e.g  "/etc/dhcpc/dhcpcd-eth0.info"

#  $2 = "up" if interface has been configured with the same

#      IP address as before reboot;

#  $2 = "down" if interface has been shut down;

#  $2 = "new" if interface has been configured with new IP address;

#

#  Sanity checks



if [ $# -lt 2 ]; then

        logger -s -p local0.err -t dhcpcd.sh "wrong usage"

        exit 1

fi



hostinfo="$1"

state="$2"



# Reading HostInfo file for configuration parameters

[ -e "${hostinfo}" ] && . "${hostinfo}"



case "${state}" in

        up)

        logger -s -p local0.info -t dhcpcd.sh \

        "interface ${INTERFACE} has been configured with old IP=${IPADDR}"

        # Put your code here for when the interface has been brought up with an

        # old IP address here

        ;;



        new)

        logger -s -p local0.info -t dhcpcd.sh \

        "interface ${INTERFACE} has been configured with new IP=${IPADDR}"

        # Put your code here for when the interface has been brought up with a

        # new IP address

        ;;



        down) logger -s -p local0.info -t dhcpcd.sh \

        "interface ${INTERFACE} has been brought down"

        # Put your code here for the when the interface has been shut down

        ;;

esac

exit 0

Now my older slack distro has a file called dhcpcd-eth0.exe and ddclient has got a replacement for it so it updates my dyndns account like this :

Code:

#!/bin/sh

######################################################################

## $Header: /home/paul/src/ddclient/RCS/sample-etc_dhcpc_dhcpcd-eth0.exe,v 3.6 2002/11/03 20:20:16 root Exp $

######################################################################

PATH=/usr/sbin:${PATH}



## update the DNS server unless the IP address is a private address

## that may be used as a internal LAN address. This may be true if

## other interfaces are assigned private addresses from internal

## DHCP server.



case "$1" in

10.*)          ;;

172.1[6-9].* | 172.2[0-9].* | 172.3[0-1].*)        ;;

192.168.*)        ;;

*)

        logger -t dhcpcd IP address changed to $1

        ddclient -daemon=0 -syslog -use=ip -ip=$1 >/dev/null 2>&1

        ;;

esac

My question is what code to insert to the dhcpcd.sh file to update dyndns with ddclient?