#!/bin/bash

#

# chkconfig: - 91 35

# description: Starts and stops vncserver. \

#	       used to provide remote X administration services.

### BEGIN INIT INFO

# Provides: vncserver

# Required-Start: $network $named

# Required-Stop: $network $named

# Default-Start:

# Default-Stop: 0 1 2 3 4 5 6

# Short-Description: start|stop|restart|try-restart|status|force-reload vncserver

# Description: control vncserver which exports your desktop

### END INIT INFO

# Source function library.

. /etc/init.d/functions

[ -r /etc/sysconfig/vncservers ] && . /etc/sysconfig/vncservers

prog=$"VNC server"

RETVAL=0

start() {

    [ "$EUID" != "0" ] && exit 4

    # Source networking configuration.

    . /etc/sysconfig/network

    # Check that networking is up.

    [ ${NETWORKING} = "no" ] && exit 1

    [ -x /usr/bin/vncserver ] || exit 5

    [ -x /usr/bin/Xvnc ] || exit 5

    echo -n $"Starting $prog: "

    RETVAL=0

    if [ ! -d /tmp/.X11-unix ]

    then

        mkdir -m 1777 /tmp/.X11-unix || :

        restorecon /tmp/.X11-unix 2>/dev/null || :

    fi

    for display in ${VNCSERVERS}

    do

        SERVS=1

        echo -n "${display} "

	DISP="${display%%:*}"

	USER="${display##*:}"

	VNCUSERARGS="${VNCSERVERARGS[${DISP}]}"

        runuser -l ${USER} -c "cd ~${USER} && [ -r .vnc/passwd ] && \

			       vncserver :${DISP} ${VNCUSERARGS}" > /dev/null 2>&1

        RETVAL=$?

        [ "$RETVAL" -eq 0 ] || break

    done

    if [ -z "$SERVS" ]; then

        echo -n "no displays configured "

        failure

        RETVAL=6

    else

        if [ "$RETVAL" -eq 0 ]; then

	    success $"vncserver startup"

	    touch /var/lock/subsys/Xvnc

	    touch /var/lock/subsys/vncserver

        else 

            failure $"vncserver start"

        fi

    fi

    echo

# As written in https://bugzilla.redhat.com/show_bug.cgi?id=523974 (LSB

# compliance) start of already running service is OK.

    [ "$RETVAL" -eq 98 ] && RETVAL=0

    return "$RETVAL"

}

stop() {

    [ "$EUID" != "0" ] && exit 4

    echo -n $"Shutting down $prog: "

    status Xvnc > /dev/null 2>&1

    RETVAL=$?

    # 3 means service is already stopped

    if ! [ "$RETVAL" -eq 3 ]; then

	for display in ${VNCSERVERS}; do

	    echo -n "${display} "

	    export USER="${display##*:}"

	    runuser ${USER} -c "vncserver -kill :${display%%:*}" >/dev/null 2>&1

	done

	RETVAL=$?

    else

	let RETVAL=0

    fi

    [ "$RETVAL" -eq 0 ] && success $"vncserver shutdown" || \

	failure $"vncserver shutdown"

    echo

    [ "$RETVAL" -eq 0 ] && (rm -f /var/lock/subsys/Xvnc ; rm -f /var/lock/subsys/vncserver)

    return "$RETVAL"

}

# See how we were called.

case "$1" in

  start)

	start

	;;

  stop)

	stop

	;;

  restart|force-reload)

	stop

	sleep 3

	start

	;;

  condrestart)

#	https://bugzilla.redhat.com/show_bug.cgi?id=508367

#	echo "condrestart is obsolete, use try-restart instead"

	if [ -e /var/lock/subsys/Xvnc ]; then

	    stop

	    sleep 3

	    start

	fi

	;;

  try-restart)

        if [ -e /var/lock/subsys/Xvnc ]; then

            stop

            sleep 3

            start

        fi

        ;;

  status)

	status Xvnc

	RETVAL=$?

	;;

  reload)

	exit 3

	;;

  *)

	echo $"Usage: $0 {start|stop|restart|try-restart|status|force-reload}"

	exit 2

esac

exit "$RETVAL"