#!/bin/sh
#
#
# SETUP_NTP
#  Sample script to Configure and start NTPD (Network Time PRotocol) 
#  in client mode on this host. 
#  This will need modification on a per-site basis.
#
#  *** DO NOT USE IT UNMODIFIED ***
#
# Tested against;
#    Solaris 2.5, 2.5.1, 2.6, 2.7, 2.8
#    SunOS 4.1.4
#    HP-UX 10.20
#    IRIX 6.2, 6.4
#    Linux Redhat 8.0  
#
# A.Gray 11 may 99  URL  http://argray.org/
#
# 11/10/03.  Added condition for Linux.  Tested on Redhat 8, likely to need modification for other variants 
#            
#
echo "This script is provided as an example for setting up"
echo "an NTP client on a number of Unix variants"
echo ""
echo "It WILL need modification on a per site basis."
echo ""
echo "NO WARRANTY OR STATEMENT OF FITNESS OF PURPOSE IS GIVEN."
echo "YOU USE IT AT YOUR OWN RISK".
echo ""
echo "Do you understand this ?"
echo "Enter 'yes' to continue, anything else will exit";
read a
if [ x"$a" != x"yes" ]; then
    exit 1
fi
#
IFS=" "
mydir="/ap/adm/ntp"
ntpconf="$mydir/ntp_conf_client"
#
myname=`uname -n`
for h in `awk '/^server/ {printf("%s ",$2)}' $ntpconf`
do
#	echo "h = $h"
	if [ "$h" = "$myname" ]; then
		ntpconf=""
		echo "This machine is an NTP server - please configure /etc/ntp.conf manually"
	fi
done
#
set -- `uname -sr`
osname=$1
IFS="." export IFS
set -- $2
majorrev=$1
minorrev=$2
IFS=" " export IFS
if [ $osname = "SunOS" ]; then
	if [ $majorrev -gt 4 ]; then  # Solaris
		if [ $minorrev -gt 5 ]; then  # NTP shipped for 5.6 onwards
			echo "Solaris version 2.6 or above - using built-in NTP"
			if [ ! -z "$ntpconf" ]; then
				cp $ntpconf /etc/inet/ntp.conf
			fi
			sh /etc/init.d/xntpd start
		else # Use shareware for OS revs upto 2.5.1 
			echo "Solaris version 2.5.1 or below - using NTP 4.0.92h"
			if [ ! -z "$ntpconf" ]; then
				cp $ntpconf /etc/ntp.conf
			fi
			mkdir -p /usr/ntp/bin
			cp $mydir/solaris2.5.1/bin/* /usr/ntp/bin
			cp $mydir/solaris2.5.1/start_ntp /etc/init.d/ntp
			rm -f /etc/rc3.d/S20ntp
			ln /etc/init.d/ntp /etc/rc3.d/S20ntp
			sh  /etc/rc3.d/S20ntp start
		fi
	else
		echo "SunOS 4.x - using NTP 4.0.92h"
		if [ ! -z "$ntpconf" ]; then
			cp $ntpconf /etc/ntp.conf
		fi
		mkdir -p /usr/ntp/bin
		cp $mydir/sunos4/* /usr/ntp/bin
		if [ `grep -c ntpd /etc/rc.local` -eq 0 ]; then
# 
# Add entry for NTP to rc.local
		cat - << ENDRC >> /etc/rc.local
if [ -x /usr/ntp/bin/ntpd ]; then
     echo "NTPD"
    /usr/ntp/bin/ntpd
fi
ENDRC
		fi
		/usr/ntp/bin/ntpd
	fi
elif [ $osname = "HP-UX" ]; then
	echo "HP-UX - using builtin NTP"
	echo " ( you can safely ignore the message 'no server suitable..' )"
	if [ ! -z "$ntpconf" ]; then
		cp $ntpconf /etc/ntp.conf
		if [ -r /etc/rc.config.d/netdaemons ]; then
			ed /etc/rc.config.d/netdaemons << ENDED > /dev/null
/XNTPD=
s/=0/=1/
w
q
ENDED
		fi
		if [ -x /sbin/init.d/xntpd ]; then
			/sbin/init.d/xntpd start
		fi
	fi
elif [ $osname = "IRIX" -o $osname = "IRIX64" ]; then
#
# Install/update ntp
	if [ $majorrev -gt 5 ]; then
		echo "IRIX 6.x"
		inst -f /ap/adm/ntp/irix6.2 -a -M -u all
	else
		echo "IRIX 6.x"
		inst -f /ap/adm/ntp/irix5.3 -a -M -u all
	fi
#
# Disable timed and enable ntp at boot time
	/sbin/chkconfig timed off
	/sbin/chkconfig ntp on
#
# If timed is running kill it.
	pid=`ps -ef | grep timed | grep -v grep | awk '{print $2}'`
	if [ ! -z "$pid" ]; then
		kill $pid
	fi

#
# Install NTP.conf
	if [ ! -z "$ntpconf" ]; then
		cp $ntpconf  /etc/ntp.conf
	fi

#
# Wollop timetrim - NTPD will sort this out later
	rm -f /etc/config/ntp.timetrim

#
# Ensure ntp is started at boottime
	rm -f /etc/rc2.d/S21ntp
	ln -s /etc/init.d/ntp /etc/rc2.d/S21ntp
cat << ENDOPT > /etc/config/ntp.options
 -f /usr/freeware/etc/ntp.drift -c /etc/ntp.conf
ENDOPT
#
# start NTP now.
	sh /etc/rc2.d/S21ntp start
	
elif [ $osname = "Linux" ]; then
    echo "Linux..."
	if [ ! -z "$ntpconf" ]; then
		cp $ntpconf  /etc/ntp.conf
	fi

	sh /etc/init/ntpd start
fi