#!/bin/sh
#
# Simple script checks to see if tac_plus is running and if it is not
# it restarts it. The tool can be run from CRON or from the command line
#
# Global Variables

TACPID="/etc/tac_plus.pid"
# Tac_plus deamon location
TAC="/usr/sbin/tac_plus"
# Tac_plus default config
TACCONF=/etc/tacacs.conf


################ List running tac_plus processes

echo " " 

rm -rf /var/tmp/trun
touch /var/tmp/trun

echo "PID      Service           Config File      Port" > /var/tmp/trun; ps -aux | grep $TAC | awk '{print $2"\t" $11, $13,$15}' >> /var/tmp/trun

cat /var/tmp/trun | grep -v "grep"

echo " " 
################ Tac_Plus runnng on the standard service port report to the CLI #############
# Varibles

if [ "$1" = "-s" ]
then
more /var/tmp/trun;exit
fi

#if [ "$1" = "" ]
#then 
#$TACPID
#fi

# If no PID file exists

if [ "$1" = "" ]
then 
ls -A $TACPID 2>/dev/null | grep -c "$TACPID" > /var/tmp/cpid
fi

if [ "$1" = "" ]
then
if [ "`cat /var/tmp/cpid`" = "0" ]
then
$TAC -C $TACCONF -d 32 ;echo "No PID File, Starting tac_plus on port 49, PID `cat $TACPID`";exit
fi
fi

#
# If PID File Exists

ps -aux | awk '{print $2}' | grep -c "`cat $TACPID`" > /var/tmp/testf

if [ "$1" = "" ]
then
if [ "`cat /var/tmp/testf`" -gt "0" ];
then echo "tac_plus is up PID `cat $TACPID`";exit
elif [ "`cat /var/tmp/testf`" = "0" ];
then 
echo "tac_plus is down";$TAC -C $TACCONF -d 32;echo Restarting tac_plus PID `cat $TACPID`;exit
fi
fi

# Stopping the "default' tac_plus service

if [ "$1" = "-k" ]
then
ps -aux | awk '{print $2}' | grep -c "`cat $TACPID`" > /var/tmp/pcheck
fi

if [ "$1" = "-k" ]
then 
if [ "`cat /var/tmp/pcheck`" = "1" ]
then
kill -TERM `cat $TACPID`;echo "Shutting Down the tac_plus service PID `cat $TACPID`";exit
else
echo "The tac_plus process does not exist";exit
fi
fi

# Reload the "default' tac_plus service

if [ "$1" = "-r" ]
then
ps -aux | awk '{print $2}' | grep -c "`cat $TACPID`" > /var/tmp/pcheck
fi

if [ "$1" = "-r" ]
then 
if [ "`cat /var/tmp/pcheck`" = "1" ]
then
kill -USR1 `cat $TACPID`;echo "Reloading the tac_plus service PID `cat $TACPID`";exit
else
echo "The tac_plus process does not exist";exit
fi
fi

################ Tac_Plus runnng on a non stardard service port report to the CLI #############

# Stopping the non-standard port tac_plus service


if [ "$1" = "-kp" ]
then 
TACPID="/etc/tac_plus.pid.$2"
fi

if [ "$1" = "-kp" ]
then 
PORT="$2"
fi

if [ "$1" = "-kp" ]
then
if [ "$2" = "" ]
then
echo "The PID value is missing";exit
fi
fi

if [ "$1" = "-kp" ]
then
if [ "`awk '{print $4}' /var/tmp/trun | grep -c $2`" = "0" ]
then
echo PID does not exist;exit
fi
fi

if [ "$1" = "-kp" ]
then
ps -aux | awk '{print $2}' | grep -c "`cat $TACPID`" > /var/tmp/nspcheck
fi

if [ "$1" = "-kp" ]
then 
if [ "`cat /var/tmp/nspcheck`" = "1" ]
then
kill -TERM `cat $TACPID`;echo "Shutting Down the tac_plus service PID `cat $TACPID`";exit
else
echo "The tac_plus process does not exist";exit
fi
fi


# Reloading the non-standard port tac_plus service


if [ "$1" = "-rp" ]
then 
TACPID="/etc/tac_plus.pid.$2"
fi

if [ "$1" = "-rp" ]
then 
PORT="$2"
fi

if [ "$1" = "-rp" ]
then
if [ "$2" = "" ]
then
echo "The PID value is missing";exit
fi
fi

if [ "$1" = "-rp" ]
then
if [ "`awk '{print $4}' /var/tmp/trun | grep -c $2`" = "0" ]
then
echo PID does not exist;exit
fi
fi

if [ "$1" = "-rp" ]
then
ps -aux | awk '{print $2}' | grep -c "`cat $TACPID`" > /var/tmp/nspcheck
fi

if [ "$1" = "-rp" ]
then 
if [ "`cat /var/tmp/nspcheck`" = "1" ]
then
kill -TERM `cat $TACPID`;echo "Shutting Down the tac_plus service PID `cat $TACPID`";exit
else
echo "The tac_plus process does not exist";exit
fi
fi

# Starting tac_plus on non-standard port 

if [ "$1" = "-p" ]
then 
PORT="$2"
fi

if [ "$1" = "-c" ]
then 
PORT="$2"
fi

if [ "$1" = "-p" ]
then 
TACPID="/etc/tac_plus.pid.`echo $2`"
fi

if [ "$1" = "-c" ]
then 
TACPID="/etc/tac_plus.pid.`echo $2`"
fi


if [ "$1" = "-p" ]
then
if [ "$2" = "" ]
then
echo "Missing Port Definition";exit
fi
fi


if [ "$1" = "-c" ]
then
if [ "$2" = "" ]
then
echo "Missing Port Definition";exit
fi
fi


if [ "$1" = "-c" ]
then
if [ "$3" = "" ]
then
echo "Missing configuration file";exit
fi
fi

# Starting tac_plus on non-standatd port if no PID file exists with the default config file definition



if [ "$1" = "-p" ]
then
if [ "$3" = "" ]
then
if [ "$1" = "-p" ]
then 
ls -A $TACPID 2> /dev/null | grep -c $TACPID > /var/tmp/nspid-new
fi
fi
fi

if [ "$1" = "-p" ]
then
if [ "$3" = "" ]
then
if [ "$1" = "-p" ]
then
if [ "`cat /var/tmp/nspid-new`" = "0" ]
then
/usr/sbin/tac_plus -C /etc/tacacs.conf -p `echo $PORT`;echo "No PID File, Starting tac_plus on port `echo $PORT`, PID `cat $TACPID`";exit
fi
fi
fi
fi

#  Starting tac_plus on non-standard port if a PID File Exists using the default config 

ps -aux | awk '{print $2}' | grep -c "`cat $TACPID`" > /var/tmp/nspid 2>$1 /dev/null

if [ "$1" = "-p" ]
then
if [ "$3" = "" ]
then
if [ "$1" = "-p" ]
then 
if [ "`cat /var/tmp/nspid`" -gt "0" ];
then echo "tac_plus is up PID `cat $TACPID`";exit
elif [ "`cat /var/tmp/nspid`" = "0" ];
then 
echo "tac_plus is down";/usr/sbin/tac_plus -C /etc/tacacs.conf -p `echo $PORT`;echo "Restarting tac_plus PID `cat /etc/tac_plus.pid`";exit
fi
fi
fi
fi

# Starting tac_plus on non-standatd port if no PID file exists with config file definition

echo 1

if [ "$1" = "-c" ]
then 
ls -A $TACPID 2> /dev/null | grep -c $TACPID > /var/tmp/nspidconf-new
fi
 
if [ "$1" = "-c" ]
then
if [ "`cat /var/tmp/nspidconf-new`" = "0" ]
then
/usr/sbin/tac_plus -C $3 -p `echo $PORT`;echo "No PID File, Starting tac_plus on port `echo $PORT`, PID `cat $TACPID`";exit
fi
fi

##################
echo 2

if [ "$1" = "-c" ]
then 
ls -A $TACPID 2> /dev/null | grep -c $TACPID > /var/tmp/nspidconf-new
fi

echo 3

if [ "$1" = "-c" ]
then
if [ "`cat /var/tmp/nspidconf-new`" = "1" ]
then
ps -aux | awk '{print $2}' > /var/tmp/confpid
fi
fi

if [ "$1" = "-c" ]
then
grep -c `cat $TACPID` /var/tmp/confpid > /var/tmp/nspidconf-ext
fi

if [ "$1" = "-c" ]
then
if [ `cat /var/tmp/nspidconf-ext` = "1" ]
then
echo "tac_plus listening on port `echo $2` Is Up PID `cat $TACPID` ";exit
fi 
fi

if [ "$1" = "-c" ]
then
if [ `cat /var/tmp/nspidconf-ext` = "0" ]
then
echo "tac_plus is down";/usr/sbin/tac_plus -C $3 -p `echo $PORT`;echo "Restarting tac_plus istening on port `echo $2` PID `cat /etc/tac_plus.pid`"
fi 
fi


echo 5

if [ "$1" = "-f" ]
then
echo "clearing PID files"; rm -rf /etc/tac_plus.pi*;exit
fi

if [ "$1" = "-h" ]
then
clear;echo "

######################  checktacplus  #####################

Here is a complete list of command flags and functions:

Start the default service = checktacplus

Stop the default service = checktacplus Ðk

Reload the configuration of the default service = checktacplus -r 

Start an instance running on a non-standard port, using the default 
configuration = checktacplus Ðp <port>

Start an instance running on a non-standard port, using an alternative configuration file = checktacplus Ðc <port> <configuration file>

Reload an instance running on a non-standard port = checktacplus Ðpr

Stop an instance running on a non-standard port = checktacplus Ðkp

Review the help information and command options = -h



" | more
fi;exit