#!/bin/bash
#
# chkconfig: - 57 75
# description: set the date and time via NTP

### BEGIN INIT INFO
# Provides: ntpdate
# Required-Start: $network $local_fs $remote_fs
# Should-Start: $syslog $named
# Short-Description: set the date and time via NTP
# Description: ntpdate sets the local clock by polling NTP servers
### END INIT INFO

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

# Source networking configuration.
. /etc/sysconfig/network

prog=ntpdate
lockfile=/var/lock/subsys/$prog
ntpconf=/etc/ntp.conf
ntpstep=/etc/ntp/step-tickers

start() {
	[ "$EUID" != "0" ] && exit 4
	[ "$NETWORKING" = "no" ] && exit 1
	[ -x /usr/sbin/ntpdate ] || exit 5
	[ -f /etc/sysconfig/ntpdate ] || exit 6
	. /etc/sysconfig/ntpdate

	[ -f $ntpstep ] && tickers=$(sed 's/#.*//' $ntpstep) || tickers=

	if ! echo "$tickers" | grep -qi '[a-z0-9]' && [ -f $ntpconf ]; then
	    # step-tickers doesn't specify a server,
	    # use servers from ntp.conf instead
	    tickers=$(awk '$1=="peer"||$1=="server"{print $2}' $ntpconf | \
		egrep -v '127\.127\.[0-9]+\.[0-9]+')
	fi

	if ! echo "$tickers" | grep -qi '[a-z0-9]'; then
	    echo $"NTP server not specified in $ntpstep or $ntpconf"
	    exit 6
	fi

	echo -n $"$prog: Synchronizing with time server: "
	/usr/sbin/ntpdate $OPTIONS $tickers &> /dev/null
	RETVAL=$?
	[ $RETVAL -eq 0 ] && success || failure
	echo
	if [ $RETVAL -eq 0 ]; then
	    touch $lockfile
	    [ "$SYNC_HWCLOCK" = "yes" ] && \
		action $"Syncing hardware clock to system time" \
		    /sbin/hwclock --systohc
	fi
	return $RETVAL
}

status() {
	[ -f $lockfile ] || return 3
}

stop() {
	[ "$EUID" != "0" ] && exit 4
	rm -f $lockfile
}

# See how we were called.
case "$1" in
  start)
	start
	;;
  stop)
	stop
	;;
  status)
	status
	;;
  restart|force-reload)
	stop
	start
	;;
  *)
	echo $"Usage: $0 {start|stop|status|restart|force-reload}"
	exit 2
esac