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|
#!/bin/sh
#
# ntpgroper host ...
#
# This script checks each hostname given as an argument to see if
# it is running NTP. It reports one of the following messages (assume
# the host is named "dumbo.hp.com":
#
# dumbo.hp.com not registered in DNS
# dumbo.hp.com not responding to ping
# dumbo.hp.com refused ntpq connection
# dumbo.hp.com not responding to NTP
# dumbo.hp.com answers NTP version 2, stratum: 3, ref: telford.nsa.hp.com
# dumbo.hp.com answers NTP version 3, stratum: 3, ref: telford.nsa.hp.com
#
# It ain't pretty, but it is kinda useful.
#
# Walter Underwood, 11 Feb 1993, wunder@hpl.hp.com
#
# converted to /bin/sh from /bin/ksh by scott@ee.udel.edu 24 Mar 1993
PATH="/usr/local/etc:$PATH" export PATH
verbose=1
logfile=/tmp/cntp-log$$
ntpqlog=/tmp/cntp-ntpq$$
# I wrap the whole thing in parens so that it is possible to redirect
# all the output somewhere, if desired.
(
for host in $*
do
# echo "Trying $host."
gethost $host > /dev/null 2>&1
if [ $? -ne 0 ]
then
echo "$host not registered in DNS"
continue
fi
ping $host 64 1 > /dev/null 2>&1
if [ $? -ne 0 ]
then
echo "$host not responding to ping"
continue
fi
# Attempt to contact with version 3 ntp, then try version 2.
for version in 3 2
do
ntpq -c "ntpversion $version" -p $host > $ntpqlog 2>&1
if fgrep -s 'Connection refused' $ntpqlog
then
echo "$host refused ntpq connection"
break
fi
responding=1
fgrep -s 'timed out, nothing received' $ntpqlog > /dev/null && responding=0
if [ $responding -eq 1 ]
then
ntpq -c "ntpversion $version" -c rl $host > $ntpqlog
# First we extract the reference ID (usually a host or a clock)
synchost=`fgrep "refid=" $ntpqlog`
#synchost=${synchost##*refid=} # strip off the beginning of the line
#synchost=${synchost%%,*} # strip off the end
synchost=`expr "$synchost" : '.*refid=\([^,]*\),.*'`
# Next, we get the stratum
stratum=`fgrep "stratum=" $ntpqlog`
#stratum=${stratum##*stratum=}
#stratum=${stratum%%,*}
stratum=`expr "$stratum" : '.*stratum=\([^,]*\),.*'`
echo "$host answers NTP version $version, stratum: $stratum, ref: $synchost"
break;
fi
if [ $version -eq 2 -a $responding -eq 0 ]
then
echo "$host not responding to NTP"
fi
done
done
)
# ) >> $logfile
if [ -f $ntpqlog ]; then
rm $ntpqlog
fi
|
