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//etc/rc1.d/K74ntpd
#!/bin/bash # # ntpd This shell script takes care of starting and stopping # ntpd (NTPv4 daemon). # # chkconfig: - 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 if [ -f /etc/sysconfig/ntpd ];then . /etc/sysconfig/ntpd fi ntpconf=/etc/ntp.conf ntpstep=/etc/ntp/step-tickers RETVAL=0 prog="ntpd" 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 } readconf() { dostep='' dropstr='' OPTIND=1 while getopts ":46aAbc:dD:f:gi:k:l:LnN:p:P:qr:s:t:u:v:V:x" args $OPTIONS; do case "$args" in x) dostep=yes;; c) ntpconf="$OPTARG";; u) dropstr="-U $(echo $OPTARG | sed 's/:.*//')";; esac done [ -x /sbin/ntpd -a -f $ntpconf ] || exit 0 tickers='' if [ -s "$ntpstep" ]; then tickers=$(sed 's/#.*//' $ntpstep) echo "$tickers" | grep -qi '[a-z0-9]' && dostep=yes || tickers='' fi if [ -n "$dostep" -a -z "$tickers" ]; then # -x option is used, but step-tickers doesn't exist or contain # anything useful, use servers from ntp.conf instead tickers=$(awk '$1=="peer"||$1=="server"{print $2}' $ntpconf | \ fgrep -v 127.127.1.0) fi } start() { # Check that networking is up. [ "$NETWORKING" = "no" ] && exit 1 readconf; if [ -n "$dostep" ]; then echo -n $"$prog: Synchronizing with time server: " /sbin/ntpdate $dropstr -s -b $NTPDATE_OPTIONS $tickers &>/dev/null RETVAL=$? [ $RETVAL -eq 0 ] && success || failure echo if [ $RETVAL -eq 0 ]; then [ "$SYNC_HWCLOCK" = "yes" ] && sync_hwclock else OPTIONS="$OPTIONS -g" fi else # -g can replace the grep for time servers # as it permits ntpd to violate its 1000s limit once. OPTIONS="$OPTIONS -g" fi # 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}" RETVAL=3 esac exit $RETVAL