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|
#!/bin/sh
#
# pingcntl: echolot control + wrapper
# Written by admin@arancio.net, peter@palfrader.org
set -e
################################################################
# You perhaps want to change those items
USER=pinger
VERBOSE=0
BASEDIR="/home/pinger/echolot"
PINGD="$BASEDIR/pingd"
PIDFILE="$BASEDIR/pingd.pid"
# You probably don't want to mess with stuff below this line
################################################################
CHECKULIMIT=1
CHECKUID=1
wait_for_deaddaemon () {
PID=$1
sleep 3
if test -n "$PID"
then
if kill -0 $PID 2>/dev/null
then
echo -n "Waiting for pid $PID ."
cnt=0
while kill -0 $PID 2>/dev/null
do
cnt=`expr $cnt + 1`
if [ $cnt -gt 30 ]
then
echo -n " Failed.. "
break
fi
sleep 2
echo -n "."
done
rm -f $PIDFILE
else
rm -f $PIDFILE
fi
fi
}
# Check for evil ulimits
if [ "$CHECKULIMIT" -gt "0" ]; then
FDs=`ulimit -n`
HFDs=`ulimit -H -n`
if [ "$FDs" -lt "512" ]; then
if [ "$HFDs" -lt "512" ]; then
echo "Hardlimit for open File Descriptors is less than 512." >&2
echo "Please consider raising it." >&2
if [ "$FDs" -lt "$HFDs" ]; then
echo "Raising it to $HFDs" >&2
ulimit -n $HFDs
fi
else
if [ "$HFDs" -lt "1024" ]; then
FDs=$HFDs
else
FDs=1024
fi
echo "Softlimit for open File Descriptors is less than 512." >&2
echo "Raising it to $FDs" >&2
ulimit -n $FDs
fi
fi
fi
# Check for right User
SU=""
if [ "$CHECKUID" -gt "0" ]; then
CUID=`id -u`
CUIDNAME=`id -nu`
if [ "$CUIDNAME" = "$USER" ]; then
SU=""
elif [ "$CUID" = "0" ]; then
SU="su $USER -c"
else
echo "You are neither $USER nor root. Aborting." >&2
exit 1;
fi
fi
# set VERBOSE
if [ $VERBOSE -gt 0 ]; then
VERBOSE="--verbose"
else
VERBOSE=""
fi
case $1 in
start)
if [ -f $PIDFILE ] ; then
PID=`cat $PIDFILE 2>/dev/null` || true
if kill -0 $PID 2>/dev/null
then
echo "pingd already running."
exit 0
else
echo -n "Removing stale pid file: "
rm -f $PIDFILE
echo "$PIDFILE."
fi
fi
echo -n "Starting Echolot: pingd"
if [ ! -z "$SU" ]; then
$SU "$PINGD --detach $VERBOSE start"
else
$PINGD --detach $VERBOSE start
fi
echo "."
;;
stop)
echo -n "Stopping Echolot: pingd"
if [ ! -z "$SU" ]; then
$SU "$PINGD stop"
else
$PINGD stop
fi
echo "."
;;
reload|force-reload|restart)
PID=`cat $PIDFILE 2>/dev/null` || true
$0 stop
wait_for_deaddaemon $PID
$0 start
;;
*)
echo "Usage: $0 (start|stop|reload|force-reload|restart)" >&2
exit 1
;;
esac
exit 0
# vim:set ts=2:
# vim:set shiftwidth=2:
|
