Idle time logout mechanism (daemon)

[Bob Peirce]

> Does anyone have (or know of) a daemon which will monitor users idle time,
> and logout any user idle longer than a given amount of time.

> Please respond via mail and as usual, I will summarize for the net.

Sorry, I don't have a path to you, but this works on SYS III.  I use
it as part of my el-cheapo, one modem both ways set-up.  Stick it in
cron to run every once in a while.  You may want to modify this to
handle several lines.


# -- ckmod
#	Robert B. Peirce;  Cookson, Peirce & Co., Inc.

#	If anyone is inactive on a modem > $GRACE minutes log them off
#	This version gives no quarter.
#	Have to look for hung outgoing uucp stuff too.

if [ $# -ne 1 ]
then
	echo "usage: ckmod tty#"
	exit 1
fi

MODEM=$1
GRACE=15			#  minutes of no activity
HM=/usr/lib/uucp
LOG=/u/rbp/kill.log
SPOOL=/usr/spool/uucp

cd $HM
#  If set doesn't produce anything, force it.
set `who | grep tty$MODEM || echo XXX`
U=$1
if [ $U = XXX ]
then
	U=""
fi

#  Get current time
set `date | tr ":" " "`
M=$2
D=$3
HC=$4
MC=$5

#  Get time device last accessed
set `/usr/ucb/ls -l /dev/tty$MODEM | tr ":" " "`
HL=$8
ML=$9

#  Check for midnight crossover
if [ $HL -gt $HC ]
then
	HL=`expr $HL + 24`
fi

#  Calculate time since last access of device
TIME=`expr \( 60 "*" $HC + $MC \) - \( 60 "*" $HL + $ML \)`

if [ $U ]
then
	if [ $TIME -ge 1 ]
	then
		echo "$U tty$MODEM ($M $D $HC:$MC $HL:$ML) $TIME minutes.\c"\
			>> $LOG
		if [ $TIME -lt $GRACE ]
		then
			echo >> $LOG
		fi
	fi
	if [ $TIME -ge $GRACE ]
	then
		#  Let him have it
		P=`ps -ft$MODEM | awk 'BEGIN{FS=" "}/'$U'/{print $2;exit}'`
		if [ $P ]
		then
			kill -9 $P
			echo "  Killed after $TIME minutes." >> $LOG
		else
			echo >> $LOG
		fi
	fi
else

#  Nobody logged on from outside
	LCK=`ls $SPOOL | egrep "LCK\.\..|.lock"`	# locks placed in uucp
	if [ "$LCK" -a $TIME -ge $GRACE ]		#  uucp has hung
	then
		cd $SPOOL
		rm -f $LCK
	fi
fi
-- 

			 	Bob Peirce
		uucp: ...!{allegra, bellcore, cadre, idis}
		  	 !pitt!darth!investor!rbp