#!/bin/bash
#
# named           This shell script takes care of starting and stopping
#                 named (BIND DNS server).
#
# chkconfig: 235 23 77
# description: named (BIND) is a Domain Name Server (DNS) \
# that is used to resolve host names to IP addresses.
# probe: true

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

# Source networking configuration.
[ -r /etc/sysconfig/network ] && . /etc/sysconfig/network

RETVAL=0
prog="named"

# Check that networking is up.
[ "${NETWORKING}" = "no" ] && exit 1

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

[ -x /usr/local/sbin/named ] || exit 1

[ -r ${ROOTDIR}/etc/named.conf ] || exit 1

PATH=$PATH:/usr/local/sbin

start() {
        # Start daemons.
        echo -n $"Starting $prog: "
	if [ -n "`/sbin/pidof named`" ]; then
		echo -n $"$prog: already running"
		failure
		echo
		return 1
	fi
	ckcf_options='-z';
	if [ -n "${ROOTDIR}" -a "x${ROOTDIR}" != "x/" ]; then
		OPTIONS="${OPTIONS} -t ${ROOTDIR}"
		ckcf_options="$ckcf_options -t ${ROOTDIR}";
	fi
        conf_ok=0;
	if [ -x /usr/local/sbin/named-checkconf ] && \
	named-checkconf $ckcf_options >/dev/null 2>&1; then
           conf_ok=1;
        else
	   RETVAL=$?;
	fi
	if [ $conf_ok -eq 1 ]; then	   
	   daemon named -u named ${OPTIONS};
	   RETVAL=$?;
	   if [ $RETVAL -eq 0 ]; then
	       ln -s $ROOTDIR/var/named/named.pid /var/run/named.pid;
	   fi;
	else
	   named_err="`named-checkconf $ckcf_options 2>&1`";	   
	   echo
	   echo $"Error in named configuration"':';
	   echo "$named_err";
	   failure
	   echo
	   if [ -x /usr/bin/logger ]; then
	       echo "$named_err" | /usr/bin/logger -pdaemon.error -tnamed 
           fi;
           return $RETVAL;
        fi;
 	[ $RETVAL -eq 0 ] && touch /var/lock/subsys/named 
        echo
	return $RETVAL
}

stop() {
        # Stop daemons.
        echo -n $"Stopping $prog: "
	rndc stop >/dev/null 2>&1 || killproc named >/dev/null 2>&1
	RETVAL=$?
	if [ $RETVAL -eq 0 ]; then
	    rm -f /var/lock/subsys/named
	    rm -f /var/run/named.pid	    
	elif  pidof named >/dev/null; then
	    rndc stop >/dev/null 2>&1 || killproc named >/dev/null 2>&1
	    RETVAL=$?
	    if [ $RETVAL -eq 0 ]; then
		rm -f /var/lock/subsys/named
		rm -f /var/run/named.pid
	    fi;
	fi;
	if [ $RETVAL -eq 0 ]; then
	    success
	else
	    failure
        fi;
	echo
	return $RETVAL
}

rhstatus() {
	rndc status
	return $?
}
	
restart() {
	stop
	sleep 2
	start
}
	
reload() {
        echo -n $"Reloading $prog: "
	p=`/sbin/pidof -o %PPID named`	
	RETVAL=$?
	if [ "$RETVAL" -eq 0 ]; then 
	    rndc reload >/dev/null 2>&1 || /usr/bin/kill -HUP $p;
	    RETVAL=$?
        fi
	[ "$RETVAL" -eq 0 ] && success $"$prog reload" || failure $"$prog reload"
        echo
	return $?
}

probe() {
	rndc reload >/dev/null 2>&1 || echo start
	return $?
}

checkconfig() {
        ckcf_options='-z';
	if [ -n "${ROOTDIR}" -a "x${ROOTDIR}" != "x/" ]; then
		OPTIONS="${OPTIONS} -t ${ROOTDIR}"
		ckcf_options="$ckcf_options -t ${ROOTDIR}";  
	fi;
	if [ -x /usr/local/sbin/named-checkconf ] && \
	named-checkconf $ckcf_options ; then
	    return 0;
	else
	    return 1;
	fi
}

case "$1" in
	start)
		start
		;;
	stop)
		stop
		;;
	status)
		rhstatus
		;;
	restart)
		restart
		;;
	condrestart)
		if [ -e /var/lock/subsys/named ]; then restart; fi
		;;
	reload)
		reload
		;;
	probe)
		probe
		;;
        checkconfig)
	        checkconfig
		;;
	*)
        	echo $"Usage: $0 {start|stop|status|restart|condrestart|reload|probe}"
		exit 1
esac

exit $?