#!/bin/sh

######################################################################################
LANG=C
export LANG

mkdir -p /root/system/ntp
HOST_NAME=`hostname`

OS=`cat /etc/redhat-release | awk '{print$3}' | cut -b1`
if [ -f /etc/redhat-release ] 
	then
		if [ $OS == 7 ]
		then
			OSVER="OS 7.x"
		else
		if [ $OS == 6 ]
		then
			OSVER="OS 6.x"
		else
		if [ $OS == 8 ]
		then
			OSVER="OS 8.x"
		else
				OS=`cat /etc/redhat-release | awk '{print$4}' | cut -b1`
				if [ $OS == 7 ]
				then
					OSVER="OS 7.x"
				else
				if [ $OS == 6 ]
				then
					OSVER="OS 6.x"
				else
				if [ $OS == 8 ]
				then
					OSVER="OS 8.x"
				else				
					
						OS=`cat /etc/redhat-release | awk '{print$7}' | cut -b1`
						if [ $OS == 7 ]
						then
							OSVER="OS 7.x"
						else
						if [ $OS == 6 ]
						then
							OSVER="OS 6.x"
						else
						if [ $OS == 8 ]
						then
							OSVER="OS 8.x"
						else
						
						
								OSVER="선언되지 않은 OS"
							fi
						fi
					fi
				fi
				fi
				
				fi
			fi
		fi
		fi
		
	else
		OSVER="/etc/redhat-release 파일이 없습니다. "
	fi

echo "o OS : $OSVER"


if [ $OS == 8 ]
then
        STAT=`chronyc sources | awk 'NR ==3 {print$1}'`
        echo $STAT
        if [ $STAT == '^*' ]
        then
        echo "chrony 정상"
        else
		echo "$HOST_NAME" `date` "[error] : chrony 동기화 안됨(OS 8.x)" >> /root/system/ntp/ntplog.log

		fi

else
if [ $OS == 7 ]
then
	NTP=`systemctl status ntpd | awk 'NR == 3 {print$2}'`
	NTP2=`systemctl status chronyd | awk 'NR == 3 {print$2}'`
	if [ "$NTP" == 'active' ]
	then
		STAT=`ntpq -p | awk 'NR == 3 {print$1}' | cut -b1`
		#echo "$STAT"
		if [ "$STAT" == '*' ]
		then	
			echo "ntp 7 정상"
		else
			echo "$HOST_NAME" `date` "[error] : ntpd 동기화 안됨(OS 7.x)" >> /root/system/ntp/ntplog.log
		fi
	else 
	if [ "$NTP2" == 'active' ]
	then
	    STAT=`chronyc sources | awk 'NR ==4 {print$1}'`
        echo $STAT
        if [ "$STAT" == '^*' ]
        then
        echo "chrony 7 정상"
        else
        echo "$HOST_NAME" `date` "[error] : chrony 동기화 안됨(OS 7.x)" >> /root/system/ntp/ntplog.log
		fi
		else
		echo "$HOST_NAME" `date` "[error] : ntp 설정 안됨(OS 7.x)" >> /root/system/ntp/ntplog.log
		
		
		
	fi
fi
else
if [ $OS == 6 ]
then
	STAT=`ntpq -p | awk 'NR == 3 {print$1}' | cut -b1`
	#echo "$STAT"
	if [ "$STAT" == '*' ]
	then	
		echo "ntp 6 정상"
	else
		echo "$HOST_NAME" `date` "[error] : ntp 설정 안됨(OS 6.x)" >> /root/system/ntp/ntplog.log
	fi
	
fi
fi
fi