#!/bin/sh
#
# vncserver	Starts/stop VNC server
#
# chkconfig:	345 91 35
#
# description:	Starts and stops vncserver.
#		Used to provide remote X administration services.
#

# Source function library
. /etc/rc.d/init.d/functions

# Get network config
. /etc/sysconfig/network

VNCSERVERS=""
[ -f /etc/sysconfig/vncserver ] && . /etc/sysconfig/vncserver

# Check that networking is up.
if is_yes "${NETWORKING}"; then
	if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status ]; then
		msg_network_down vncserver
		exit 1
	fi
else
	exit 0
fi

start() {
	# Check if the service is already running?
	if [ -f /var/lock/subsys/vncserver ]; then
		msg_already_running vncserver
		return
	fi

	ulimit -S -c 0 >/dev/null 2>&1
	RETVAL=0

	if [ ! -d /tmp/.X11-unix ]; then
		mkdir -m 1777 /tmp/.X11-unix || :
		restorecon /tmp/.X11-unix 2>/dev/null || :
	fi

	NOSERV=1
	for display in $VNCSERVERS; do
		msg_starting "vncserver ($display)"
		NOSERV=0
		DISP="${display%%:*}"
		USER="${display##*:}"
		if [ "x$USER" == "xroot" ]; then
			fail
			echo "-- Do not run vncserver as root!"
			continue
		fi
		VNCUSERARGS="${VNCSERVERARGS[${DISP}]}"
		USEREXISTS=`cat /etc/passwd | awk -F: "{ if (\"$USER\"==\\\$1) print \"yes\" }"`
		if [ "x$USEREXISTS" != "xyes" ]; then
			fail
			echo "-- User $USER does not exists!"
			continue
		fi
		USERHOME=`runuser $USER -c 'echo $HOME'`
		if [ ! -f "$USERHOME/.vnc/passwd" ]; then
			fail
			echo "-- No password file found for user $USER!"
			continue
		fi
		export USER VNCUSERARGS
		daemon --user ${USER} "vncserver :${DISP} ${VNCUSERARGS}"
		RETVAL=$?
		[ "$RETVAL" -eq 0 ] && echo $display >> /var/lock/subsys/vncserver
	done
}

stop() {
	if [ ! -f /var/lock/subsys/vncserver ]; then
		msg_not_running vncserver
		return
	fi

	# Stop daemons.
	ERRDISP=""
	for display in `cat /var/lock/subsys/vncserver`
	do
		msg_stopping "vncserver ($display)"
		export USER="${display##*:}"
		runuser ${USER} -c "vncserver -kill :${display%%:*}" >/dev/null 2>&1
		RETVAL=$?
		[ "$RETVAL" -eq 0 ] && ok && continue
		fail
		ERRDISP="$ERRDISP $display"
	done
	rm -f /var/lock/subsys/vncserver
	[ "x$ERRDISP" != "x" ] && echo "$ERRDISP" > /var/lock/subsys/vncserver
}

RETVAL=0
# See how we were called.
case "$1" in
  start)
  	start
	;;
  stop)
  	stop
	;;
  restart)
	stop
	sleep 3s
	start
	exit $?
	;;
  status)
	status Xvnc
	RETVAL=$?
	;;
  *)
	msg_usage "$0 {start|stop|restart|status}"
	exit 3
esac

exit $RETVAL