Attachment 290381 Details for Bug 426749 – Modified /etc/rc.d/init.d/ntpd script

Modified /etc/rc.d/init.d/ntpd script

ntpd.modified (text/plain), 5.30 KB, created by David Tonhofer on 2007-12-25 20:08:59 UTC

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Creator: David Tonhofer

Created: 2007-12-25 20:08:59 UTC

Size: 5.30 KB

patch

obsolete

>#!/bin/bash
>#
># ntpd		This shell script takes care of starting and stopping
>#		ntpd (NTPv4 daemon).
>#
># chkconfig: 2345 58 74
># description: ntpd is the NTPv4 daemon. \
># The Network Time Protocol (NTP) is used to synchronize the time of \
># a computer client or server to another server or reference time source, \
># such as a radio or satellite receiver or modem.
>
># Source function library.
>. /etc/init.d/functions
>
># Source networking configuration.
>. /etc/sysconfig/network
>
># Check that networking is up.
>[ ${NETWORKING} = "no" ] && exit 0
>
># Source any additional options
>if [ -f /etc/sysconfig/ntpd ];then
>        . /etc/sysconfig/ntpd
>fi
>
># Default configuration file (may be overridden through /etc/sysconfig/ntpd)
>ntpconf=/etc/ntp.conf
>
># List of NTP servers which are used to "step" the clock once to a correct value
># at startup using "ntpdate" (this usage is deprecated, see the ntpd manpage)
>ntpstep=/etc/ntp/step-tickers
>
>
>RETVAL=0
>prog="ntpd"
>
># Synchronize hardware clock to the system time after a successful "ntpdate"
># execution at startup (this operation is done by ntpd while it runs normally)
>sync_hwclock() {
>	ARC=0
>	SRM=0
>	UTC=0
>
>	if [ -f /etc/sysconfig/clock ]; then
>	   . /etc/sysconfig/clock
>
>	   # convert old style clock config to new values
>	   if [ "${CLOCKMODE}" = "GMT" ]; then
>	      UTC=true
>	   elif [ "${CLOCKMODE}" = "ARC" ]; then
>	      ARC=true
>	   fi
>	fi
>
>	CLOCKFLAGS="$CLOCKFLAGS --systohc"
>
>	case "$UTC" in
>	    yes|true)	CLOCKFLAGS="$CLOCKFLAGS --utc";;
>	    no|false)	CLOCKFLAGS="$CLOCKFLAGS --localtime";;
>	esac
>	case "$ARC" in
>	    yes|true)	CLOCKFLAGS="$CLOCKFLAGS --arc";;
>	esac
>	case "$SRM" in
>	    yes|true)	CLOCKFLAGS="$CLOCKFLAGS --srm";;
>	esac
>
>	action $"Syncing hardware clock to system time" /sbin/hwclock $CLOCKFLAGS
>}
>
># Additional configuration check at startup; interpretes the arguments set by the
># sourcing of "/etc/sysconfig/ntpd": OPTIONS, USE_NTPDATE, SYNC_HWCLOCK
>readconf() {
>	dostep=''
>	dropstr=''
>	tickers=''
>	OPTIND=1
>        if [ "$USE_NTPDATE" = "yes" ]; then
>           # Use "ntpdate" to step the clocks to a correct value using the
>           # NTP servers listed in the "step-tickers" file once before "ntpd" is
>           # started. This may be useful for clocks that go wrong quickly.
>           dostep=yes
>        fi
>        # Check OPTIONS to be passed to ntpd.
>        # By default OPTIONS is equal to "-u ntp -p /var/run/ntpd.pid".
>        # We will now check for the presence of "-c" and "-u":
>        # "-c" is used to set another configuration file
>        # "-u" is used to change user (-U is deprecated; any "group" is irrelevant
>        #      and filtered out)
>	while getopts ":aAbc:dD:f:gi:k:l:LmnN:p:P:qr:s:t:u:U:v:V:x" args $OPTIONS;
>	do 
>	  case "$args" in
>	    x) if [ -z "$USE_NTPDATE" ]; then
>		     echo "The '-x' in /etc/sysconfig/ntpd no longer starts ntpdate; use USE_NTPDATE=yes instead"
>	       fi
>               ;;
>	    c) ntpconf="$OPTARG";; # override the default ntpconf by the one given
>	    u|U) dropstr="-U $(echo $OPTARG | sed 's/:.*//')" # dropstr will be used for "ntpdate"
>	         if [ "$args" = "U" ]; then
>	             # correct the OPTIONS string for "ntpd"
>	             OPTIONS=$(echo $OPTIONS | sed 's/-U/-u/g')
>	             echo "Please change '-U' to '-u' in /etc/sysconfig/ntpd"
>	         fi
>	         ;;
>	  esac
>	done
>
>        # Check that the "ntpd" executable and the config file actually exist
>	[ -x /usr/sbin/ntpd -a -f $ntpconf ] || exit 0
>
>        # Collect the "step tickers" i.e. the NTP servers for "ntpdate", but only
>        # if necessary
>        if [ -n "$dostep" ]; then 
>	    if [ -s "$ntpstep" ]; then
>               # file "$ntpstep" exists and contains text; eliminate comments and set 
>	       tickers=$(sed 's/#.*//' $ntpstep)
>               # unset "tickers" again if actually no valid lines found
>	       echo "$tickers" | grep -qi '[a-z0-9]' && dostep=yes || tickers=''
>  	    fi
>	    if [ -z "$tickers" ]; then
>	       # tickers still not set, use servers from ntp.conf instead
>	       tickers=$(awk '$1=="peer"||$1=="server"{print $2}' $ntpconf | \
>	           fgrep -v 127.127.1.0)
>	    fi
>	fi
>}
>
>start() {
>	readconf;
>
>	if [ -n "$dostep" ]; then
>	    echo -n $"$prog: Synchronizing with time server: "
>	    /usr/sbin/ntpdate $dropstr -s -b $tickers 2>/dev/null >/dev/null
>	    RETVAL=$?
>	    [ $RETVAL -eq 0 ] && success || failure
>	    echo
>	    if [ $RETVAL -eq 0 ]; then
>	        [ "$SYNC_HWCLOCK" = "yes" ] && sync_hwclock
>	    else
>	        OPTIONS="$OPTIONS -g"
>	    fi
>        fi
>	# -g can replace the grep for time servers
>	# as it permits ntpd to violate its 1000s limit once.
>        # if "-g" is desired, set it in OPTIONS.
>        # Start daemons.
>        echo -n $"Starting $prog: "
>        daemon ntpd $OPTIONS
>	RETVAL=$?
>        echo
>        [ $RETVAL -eq 0 ] && touch /var/lock/subsys/ntpd
>	return $RETVAL
>}
>
>stop() {
>        echo -n $"Shutting down $prog: "
>	killproc ntpd
>	RETVAL=$?
>        echo
>        [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/ntpd
>	return $RETVAL
>}
>
># See how we were called.
>case "$1" in
>  start)
>	start
>        ;;
>  stop)
>	stop
>        ;;
>  status)
>	status ntpd
>	RETVAL=$?
>	;;
>  restart|reload)
>	stop
>	start
>	RETVAL=$?
>	;;
>  condrestart)
>	if [ -f /var/lock/subsys/ntpd ]; then
>	    stop
>	    start
>	    RETVAL=$?
>	fi
>	;;
>  *)
>        echo $"Usage: $0 {start|stop|restart|condrestart|status}"
>        exit 1
>esac
>
>exit $RETVAL
>

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Attachments on bug 426749: 290380 | 290381 | 290382