#!/bin/sh
#
### BEGIN INIT INFO
# Provides:          fliwi-dns-internal-multicast-support
# Required-Start:    $fliwi dnsmasq
# Required-Stop:
# Should-Start:
# Should-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Enables multicast-dns for fliwi
# Description:       Joins 224.0.0.153 in order to be able to get to
#                    dnsmasq on this multicast-ip on port 53.
### END INIT INFO

NAME=fliwi-dns-internal-multicast-support
PATH=/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/bin/socat
USER=daemon
PORT=5533
MADDR=224.0.0.153
NETWORK=lan

. /lib/lsb/init-functions

test -x $DAEMON || exit 0

case "$1" in
  start)
    log_daemon_msg "Starting $NAME" "$NAME"
    start-stop-daemon --start --quiet --pidfile /var/run/$NAME.pid --make-pidfile \
                --background --chuid $USER --name $(basename $DAEMON) --user $USER \
                --exec $DAEMON -- UDP4-RECVFROM:$PORT,ip-add-membership=$MADDR:$NETWORK,fork EXEC:/usr/bin/fliwi-dns-internal-get-own-dns-service-ip
    log_end_msg $?
    echo
  ;;

  stop)
    log_daemon_msg "Stopping $NAME" "$NAME"
    start-stop-daemon --stop --quiet --pidfile /var/run/$NAME.pid \
                --name $(basename $DAEMON) --user $USER --exec $DAEMON --retry 5
    exit_status=$?
    log_end_msg $exit_status || true
    echo
  ;;

  status)
    status_of_proc -p "/var/run/$NAME.pid" "$DAEMON" $NAME && exit 0 || exit 1
  ;;

  restart)
    $0 stop
    sleep 2
    $0 start
  ;;

  *)
    echo "Usage: $0 {start|stop|restart}"
    exit 3
  ;;
esac

exit 0


