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|
#!/bin/bash
NC="/etc/ntp.conf"
XI="/etc/init.d/xntp3"
TWEAK="no"
# only do this stuff if we're being called to configure a package
if [ "$1" != "configure" ]
then
exit 0
fi
# make sure a couple of directories we need exist
mkdir -p /var/log/ntpstats /var/lib/ntp /etc/init.d
# make sure we have an /etc/init.d/xntp3
if [ -f $XI ]
then
echo "An /etc/init.d/xntp3 file already exists, we'll give it a try."
echo "If you're having problems, remove this file, and reinstall."
echo ""
else
echo "#! /bin/sh" > $XI
echo "# /etc/init.d/xntp: start xntp daemon." >> $XI
echo "" >> $XI
echo "test -f /usr/sbin/xntpd || exit 0" >> $XI
echo "" >> $XI
echo "case \"\$1\" in" >> $XI
echo "start)" >> $XI
echo " #ntpdate" >> $XI
echo " start-stop-daemon --start --verbose --exec /usr/sbin/xntpd" >> $XI
echo " ;;" >> $XI
echo "stop)" >> $XI
echo " start-stop-daemon --stop --quiet --exec /usr/sbin/xntpd" >> $XI
echo " ;;" >> $XI
echo "restart|force-reload)" >> $XI
echo " start-stop-daemon --stop --quiet --exec /usr/sbin/xntpd" >> $XI
echo " sleep 2" >> $XI
echo " start-stop-daemon --start --verbose --exec /usr/sbin/xntpd" >> $XI
echo " ;;" >> $XI
echo "*)" >> $XI
echo " echo \"Usage: /etc/init.d/xntp3 {start|stop|restart|force-reload}\"" >> $XI
echo " exit 1" >> $XI
echo "esac" >> $XI
echo "" >> $XI
echo "exit 0" >> $XI
TWEAK="yes"
fi
# make sure we have an /etc/ntp.conf
if [ -f $NC ]
then
echo "An /etc/ntp.conf file already exists, and will be used to"
echo "configure xntpd. You may wish to review the contents of this"
echo "file for accuracy."
echo ""
else
# there shouldn't be a daemon running if there's no config file, but
# make sure before we go mucking...
start-stop-daemon --stop --quiet --exec /usr/sbin/xntpd
echo "# /etc/ntp.conf, configuration for xntpd" > $NC
echo "" >> $NC
echo "logfile /var/log/xntpd" >> $NC
echo "driftfile /var/lib/ntp/ntp.drift" >> $NC
echo "statsdir /var/log/ntpstats/" >> $NC
echo "" >> $NC
echo "statistics loopstats peerstats clockstats" >> $NC
echo "filegen loopstats file loopstats type day enable" >> $NC
echo "filegen peerstats file peerstats type day enable" >> $NC
echo "filegen clockstats file clockstats type day enable" >> $NC
echo "" >> $NC
echo
echo "Before xntpd can be started to syncronize your computer's clock,"
echo "we need the address of at least one existing NTP server for the"
echo "/etc/ntp.conf file. If you don't know which server you want to"
echo "use, just hit enter and edit /etc/ntp.conf later. If you have"
echo "a radio clock and/or want to establish peer instead of server"
echo "relationships in xntpd, you will need to edit /etc/ntp.conf"
echo "manually."
echo
echo "Please enter the address of an NTP server, or <enter> to end:"
echo -n "> "
read TMP
if [ -z $TMP ]
then
echo "#server" >> $NC
else
while [ ! -z $TMP ]
do
echo "server $TMP" >> $NC
echo "Another? (<enter> to end):"
echo -n "> "
read TMP
done
fi
echo
TWEAK="yes"
fi
# if we touched either ntp.conf or the init.d fragment, offer to run ntpdate
if [ "$TWEAK" = "yes" ]
then
echo "The xntpd daemon will give up without synchronizing your clock"
echo "if the difference between your clock and that of the server you"
echo "specified is more than 1024 seconds when xntpd launches."
echo
echo "There is a command 'ntpdate' which can be run before xntpd is"
echo "started, to warp your local clock to a close approximation of"
echo "the time on the server(s) you specified above before xntpd is"
echo "started. If you trust the time on the servers above more"
echo "than you trust the battery in your system's clock, then we can"
echo "arrange for ntpdate to be added to the xntpd startup script."
echo "Because 'ntpdate' is much less paranoid than xntpd about servers"
echo "with bad clocks, some folks think this is a bad idea."
echo
echo -n "Should we run ntpdate every time xntpd starts? "
read yn
test -n "$yn" || yn="N"
case "$yn" in
[Yy]*)
TMP="`grep "server" $NC | awk '{ print $2 }' | tr "\n" " "`"
export TMP
awk ' BEGIN { state = 0 }
/ntpdate/ && state == 0 {
printf " /usr/sbin/ntpdate -b -s %s\n",
ENVIRON["TMP"]
state = 1
next }
/ntpdate/ && state == 1 { next }
{ print }
' < /etc/init.d/xntp3 > /etc/init.d/xntp3.new
mv -f /etc/init.d/xntp3.new /etc/init.d/xntp3
;;
esac
fi
# make sure the init.d fragment is properly linked and executable
update-rc.d xntp3 defaults >/dev/null
chmod 755 /etc/init.d/xntp3
# use the init.d script instead of calling start-stop-daemon directly, so that
# ntpdate gets run first if we're configured that way...
/etc/init.d/xntp3 start
|
