Dropbox init script to use with systemd

#!/bin/sh
# chkconfig: 345 85 15
# description: Startup script for dropbox daemon
#
# processname: dropboxd
# pidfile: /var/run/dropbox.pid
# config: /etc/sysconfig/dropbox
#

### BEGIN INIT INFO
# Provides: dropboxd
# Required-Start: $local_fs $network $syslog
# Required-Stop: $local_fs $syslog
# Should-Start: $syslog
# Should-Stop: $network $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start up the Dropbox file syncing daemon
# Description: Dropbox is a filesyncing sevice provided by dropbox.com
# This service starts up the dropbox daemon.
### END INIT INFO

# Source function library.

. /etc/rc.d/init.d/functions

# To configure, add line with DROPBOX_USERS="user1 user2" to /etc/sysconfig/dropbox
# Probably should use a dropbox group in /etc/groups instead.
#DROPBOX_USERS="renato"

[ -f /etc/sysconfig/dropbox ] && . /etc/sysconfig/dropbox
prog=dropboxd
lockfile=${LOCKFILE-/var/lock/subsys/$prog}
config=${CONFIG-/etc/sysconfig/dropbox}
RETVAL=0
DAEMON=.dropbox-dist/dropbox

start() {
 echo -n $"Starting $prog"
 if [ -z $DROPBOX_USERS ] ; then
  echo -n ": unconfigured: $config"
  echo_failure
  echo
  rm -f ${lockfile} ${pidfile}
  RETURN=6
  return $RETVAL
 fi

 for dbuser in $DROPBOX_USERS; do
  HOMEDIR=`getent passwd $dbuser | cut -d: -f6`
  if [ -x $HOMEDIR/$DAEMON ]; then
   echo
   echo -n "daemon --user $dbuser /bin/sh -c \"$HOMEDIR/$DAEMON&\"  "
   daemon --user $dbuser /bin/sh -c "$HOMEDIR/$DAEMON&"
  fi
 done
 
 RETVAL=$?
 echo
 [ $RETVAL = 0 ] && touch ${lockfile}
 return $RETVAL
}

status() {
 for dbuser in $DROPBOX_USERS; do
  dbpid=`pgrep -u $dbuser dropbox | grep -v grep`
  if [ -z $dbpid ] ; then
   echo "dropboxd for USER $dbuser: not running."
  else
   echo "dropboxd for USER $dbuser: running (pid $dbpid)"
  fi
 done
}

stop() {
 echo -n $"Stopping $prog"
 for dbuser in $DROPBOX_USERS; do
  killproc ~$dbuser/.dropbox-dist/dropbox
 done
 RETVAL=$?
 echo
 [ $RETVAL = 0 ] && rm -f ${lockfile} ${pidfile}
}

# See how we were called.
case "$1" in
 start)
  start
 ;;
 status)
  status
 ;;
 stop)
  stop
 ;;
 restart)
  stop
  start
 ;;
 *)
echo $"Usage: $prog {start|status|stop|restart}"
RETVAL=3
esac
exit $RETVAL