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#!/bin/sh
. "`dirname \"$0\"`"/datastore-functions.sh
#www2.tal.de
HTTP_SERVER=213.240.140.21
start=`date +%N`
if printf "HEAD / HTTP/1.1\r\n\r\n" | nc -w 1 $HTTP_SERVER 80 >/dev/null; then
end=`date +%N`
dur=`expr $end - $start`
if [ $dur -lt 0 ]; then
dur=`expr $dur + 999999999`
fi
put_value_sensor_now "`hostname`.internet.latency_ns" "$dur"
else
put_value_sensor_now "`hostname`.internet.latency_ns" "-1"
fi
exit 0
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