#!/bin/bash
#
# ypbind:       Starts the ypbind Daemon
#
# Version:      @(#) /etc/init.d/ypbind.init 1.3
#
# chkconfig: - 27 73
# description: This is a daemon which runs on NIS/YP clients and binds them \
#              to a NIS domain. It must be running for systems based on glibc \
#              to work as NIS clients, but it should not be enabled on systems \
#              which are not using NIS.
# processname: ypbind
# config: /etc/yp.conf

### BEGIN INIT INFO
# Provides: $ypbind
# Required-Start: $network $syslog
# Required-Stop: $network $syslog
# Default-Start:
# Default-Stop: 0 1 2 3 4 5 6
# Short-Description: start|stop|restart|condrestart|try-restart|reload|force-reload|status NIS client
# Description: This is a daemon which runs on NIS/YP clients and binds them to a NIS domain
### END INIT INFO

OTHER_YPBIND_OPTS=""

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

. /etc/sysconfig/network

# Check for and source configuration file otherwise set defaults
[ -f /etc/sysconfig/ypbind ] && . /etc/sysconfig/ypbind

# NISTIMEOUT should be a multiple of 15 since
# ypwhich has a hardcoded 15sec timeout
[ -z "$NISTIMEOUT" ] && NISTIMEOUT=45

# Check that networking is configured.
[ "${NETWORKING}" = "no" ] && exit 0

selinux_on() {
        [ -x /usr/sbin/selinuxenabled ] && /usr/sbin/selinuxenabled || return
	#echo $"Turning on allow_ypbind SELinux boolean"
        setsebool allow_ypbind=1
}

selinux_off() {
        [ -x /usr/sbin/selinuxenabled ] && /usr/sbin/selinuxenabled || return
	allow_ypbind=0
	.  /etc/selinux/config
	if [ -e /etc/selinux/${SELINUXTYPE}/modules/active/booleans.local ]; then
		. /etc/selinux/${SELINUXTYPE}/modules/active/booleans.local
	fi
	if [ $allow_ypbind == 0 ]; then
		#echo $"Turning off allow_ypbind SELinux boolean"
		setsebool allow_ypbind=$allow_ypbind
	fi
}

start() {
	DOMAINNAME=`domainname`
	if [ "$DOMAINNAME" = "(none)" -o "$DOMAINNAME" = "" ]; then
		echo -n $"Setting NIS domain: "
		if [ -n "$NISDOMAIN" ]; then
			action $"domain is '$NISDOMAIN' " domainname $NISDOMAIN
		else # See if the domain is set in config file
			NISDOMAIN=`grep "domain" /etc/yp.conf | grep -v ^# | \
				awk '{print $2}'`
	   		if [ -n "$NISDOMAIN" ]; then
				action $"domain is '$NISDOMAIN' " \
					domainname $NISDOMAIN
	   		else
				action $"domain not found" /bin/false
				logger -t ypbind $"domain not found"
	        		return 1
			fi
		fi
	fi
	echo -n $"Starting NIS service: "
	selinux_on
	daemon ypbind $OTHER_YPBIND_OPTS
	RETVAL=$?
	echo
	if [ $RETVAL -ne 0 ]; then
	    #selinux_off
	    logger -t ypbind "failed to start!"
	    return $RETVAL
	fi
	echo -n $"Binding NIS service: "
	# the following fixes problems with the init scripts continuing
	# even when we are really not bound yet to a server, and then things
	# that need NIS fail.
	timeout=10
	firsttime=1
        SECONDS=0
	while [ $SECONDS -lt $timeout ]; do
		if /usr/sbin/rpcinfo -p | LC_ALL=C fgrep -q ypbind
		then
			if [ $firsttime -eq 1 ]; then
				# reset timeout
				timeout=$NISTIMEOUT
				firsttime=0
			fi
			/usr/bin/ypwhich > /dev/null 2>&1
		    	RETVAL=$?
	    		if [ $RETVAL -eq 0 ]; then
				break;
	    		fi
		fi
		sleep 2
		echo -n "."
	done
	if [ $RETVAL -eq 0 ]; then
		logger -t ypbind \
			"NIS domain: `domainname`, NIS server: `ypwhich 2> /dev/null`"
		touch /var/lock/subsys/ypbind
		success
	else
		logger -t ypbind \
			"NIS server for domain `domainname` is not responding."
		failure
		#selinux_off
		RETVAL=100
	fi
	echo
	return $RETVAL
}

stop() {
	echo -n $"Shutting down NIS service: "
	killproc ypbind
	RETVAL=$?
	if [ $RETVAL -eq 0 ]; then
		rm -f /var/lock/subsys/ypbind
		# if  we used brute force (like kill -9) we don't want those around
		if [ x$(domainname) != x ]; then
			rm -f /var/yp/binding/$(domainname)*
		fi
	fi
	echo
	#selinux_off
	return $RETVAL
}

restart() {
	stop
	start
}

reload() {
	echo -n $"Reloading NIS service: "
        p=`/sbin/pidof -o %PPID 'ypbind'`
        RETVAL=$?
        if [ "$RETVAL" -eq 0 ]; then
            /bin/kill -HUP $p
            RETVAL=$?
        fi
        [ "$RETVAL" -eq 0 ] && success || failure
        echo
        return $RETVAL
}

RETVAL=0

# See how we were called.
case "$1" in
  start)
	start
	RETVAL=$?
	if [ $RETVAL -eq 100 ]; then stop; RETVAL=1; fi
	;;
  stop)
	stop
	RETVAL=$?
	;;
  status)
	status ypbind
	RETVAL=$?
	;;
  restart)
	restart
	RETVAL=$?
	;;
  condrestart|try-restart)
	if [ -e /var/lock/subsys/ypbind ]; then restart; fi
	;;
  reload)
	reload
	;;
  force-reload)
	if ! reload; then restart; fi
	;;
  *)
	echo $"Usage: $0 {start|stop|restart|condrestart|try-restart|reload|force-reload|status}"
	RETVAL=3
esac

exit $RETVAL