#!/bin/sh

# Event script for udhcpc

# Copyright (C)2013-2024, Philip Munts dba Munts Technologies.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
#   this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

. /etc/platform

case $1 in
    deconfig)
	if [ -f /var/run/mdnsd.$1.pid ]; then
	  kill -9 `cat /var/run/mdnsd.$1.pid`
	  rm -f /var/run/mdnsd.$1.pid
	fi

        if [ $((OPTIONS & 0x08)) -ne 0 ]; then
          killall ntpd
          ntpd
        fi

	ifconfig $interface 0.0.0.0
	;;

    bound)
	ifconfig $interface $ip netmask $subnet

	if [ -n "$router" ]; then
	  route add default gw $router
        fi

	if [ -n "$dns" ]; then
	  echo "# Created by udhcpc.script" > /etc/resolv.conf

	  if [ -n "$domain" ]; then
	    echo "domain $domain" >> /etc/resolv.conf
	  fi

	  for n in $dns; do echo "nameserver $n" >> /etc/resolv.conf; done
	fi

	if [ -n "$hostname" ]; then
	  hostname $hostname
	fi

	if [ -n "$meritdump" ]; then
	  share=`echo $meritdump | cut -d ' ' -f 1`
	  mountpoint=`echo $meritdump | cut -d ' ' -f 2`
	  options=`echo $meritdump | cut -d ' ' -f 3`

	  mkdir -p $mountpoint
	  mount -o $options $share $mountpoint

	  if [ $((OPTIONS & 0x100)) -ne 0 -a -d $mountpoint/autoexec.d ]; then
            for s in $mountpoint/autoexec.d/* ; do
              if [ -x "$s" ]; then
                "$s"
              fi
            done
	  fi

	  echo $mountpoint >/var/run/udhcpc.$interface.mount
	fi

        if [ $((OPTIONS & 0x200)) -ne 0 ]; then
          mdnsd $interface `hostname -s` $ip
        fi

        if [ $((OPTIONS & 0x08)) -ne 0 ]; then
          killall ntpd
          ntpd
        fi

	now=`date +%s`
	then=`expr $now + $lease`
	echo "Lease for $ip on $interface bound until `date -D '%s' -d $then`" >/var/run/udhcpc.$interface.lease
	;;

    renew)
	now=`date +%s`
	then=`expr $now + $lease`
	echo "Lease for $ip on $interface renewed until `date -D '%s' -d $then`" >/var/run/udhcpc.$interface.lease
    	;;
esac