#! /bin/sh
#
# This is an init script for openembedded
# Copy it to /etc/init.d/openldap and type
# > update-rc.d openldap defaults 60
#
. /etc/init.d/functions

################################################################################
# Wait for a process to stop running.
#
################################################################################
function wait_for_proc_stop()
{
    PROGNAME=$1
    TIMEOUT=${2:-"5"}

    for I in $(seq 1 $TIMEOUT); do
        PID=$(pidof $PROGNAME 2> /dev/null)
        if [ $? -ne 0 ]; then
            ## already dead
            return 0
        fi
        sleep 1
    done

    return 1
}

slapd=/usr/sbin/slapd
test -x "$slapd" || exit 0

RETVAL=0

case "$1" in
  start)
    echo -n "Starting SLAPD: "
    if [ -f /etc/openldap/schema/cn=config.ldif ]; then
        start-stop-daemon --start --oknodo --quiet --exec $slapd \
            -- -F /etc/openldap/schema/
        RETVAL=$?
    else
        start-stop-daemon --start --oknodo --quiet --exec $slapd
        RETVAL=$?
    fi
    if [ $RETVAL -ne 0 ]; then
        echo "Failed to start SLAPD."
        exit $RETVAL
    fi

    # we need to start nscd service as part of this openldap
    # init.d script since SM manages this as a service and both
    # daemons should be running on a controller host
    systemctl status nscd.service
    if [ $? -ne 0 ]; then
        echo -n "Starting NSCD: "
        systemctl start nscd.service
        RETVAL=$?
        if [ $RETVAL -ne 0 ]; then
            echo "Failed to start NSCD."
            exit $RETVAL
        fi
    fi

    echo "."
    ;;
  stop)
    echo -n "Stopping NSCD: "
    systemctl stop nscd.service
    rm -f /var/run/nscd/nscd.pid

    echo -n "Stopping SLAPD: "
    start-stop-daemon --retry 60 --stop --oknodo --quiet --pidfile /var/run/slapd.pid
    RETVAL=$?
    wait_for_proc_stop $slapd 10
    WRETVAL=$?
    while [ $WRETVAL -eq 1 ]; do
      killproc $slapd
      wait_for_proc_stop $slapd 10
      WRETVAL=$?
    done
    rm -f /var/run/slapd.pid
    echo "."
    ;;
  status)
    status $slapd
    [ $? -eq 0 ] || exit $?
    systemctl status nscd.service
    [ $? -eq 0 ] || exit $?
    ;;
  restart)
    $0 stop
    $0 start
    ;;
  *)
    echo "Usage: /etc/init.d/openldap {start|stop|status|restart}"
    exit 1
esac

exit $RETVAL