#!/bin/sh
#
# restart-automount
#

AUTOMOUNT_PIDFILE="/var/run/automount.pid"

IS_CONSOLE_LOGOUT=0
IS_NETWORK_CHANGE=0

while [ $# -gt 0 ]
do
    case "${1}" in
    "State:/Users/ConsoleUser" | "state:/users/ConsoleUser" )
	scutil <<_END_OF_INPUT | grep -q "No such key"
open
get ${1}
quit
_END_OF_INPUT

	status=$?
	if [ $status -eq 0 ]; then
	    IS_CONSOLE_LOGOUT=1
	fi
	;;
    * )
	IS_NETWORK_CHANGE=1
	;;
    esac

    shift
done

if [ ${IS_NETWORK_CHANGE} -gt 0 ]; then

    #
    # network configuration has changed
    #
    logger -i -p daemon.debug -t restart-automount "process network configuration changed"

    if [ ! -f "${AUTOMOUNT_PIDFILE}" ]; then
	#
	# the automount daemon is not running, start it
	#
	. /etc/rc.common
	if [ "${AUTOMOUNT:=-YES-}" = "-YES-" ]; then
	    automount -m /Network/Servers -fstab -m /automount -static
	fi
	exit 0
    fi

    #
    # send a SIGHUP to the "automount" daemon which will attempt to
    # unmount all mounted filesystems, re-read the mount maps, and
    # reset.
    #
#   aPID=`cat "${AUTOMOUNT_PIDFILE}"`
#   kill -HUP ${aPID}
#   status=$?
#   if [ $status -ne 0 ]; then
#	logger -i -p daemon.notice -t restart-automount "Could not SIGHUP automount, pid=${aPID}, status=${status}"
#	exit 0
#   fi

elif [ ${IS_CONSOLE_LOGOUT} -gt 0 ]; then

    #
    # console user has logged out
    #
    logger -i -p daemon.debug -t restart-automount "process console user logout"

    if [ ! -f "${AUTOMOUNT_PIDFILE}" ]; then
	#
	# if the automount daemon is not running
	#
	exit 0
    fi

    #
    # send a SIGUSR1 to the "automount" daemon which will attempt to
    # unmount all mounted filesystems.
    #
    aPID=`cat "${AUTOMOUNT_PIDFILE}"`
    kill -USR1 ${aPID}
    status=$?
    if [ $status -ne 0 ]; then
	logger -i -p daemon.notice -t restart-automount "Could not SIGUSR1 automount, pid=${aPID}, status=${status}"
	exit 0
    fi

fi

exit 0