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#!/bin/sh
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#
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### BEGIN INIT INFO
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# Provides: dhcrelay
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# Default-Start:
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# Default-Stop:
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# Should-Start:
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# Required-Start: $network
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# Required-Stop:
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# Short-Description: Start and stop the DHCP relay server for IPv6
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# Description: dhcrelay provides the Dynamic Host Configuration Protocol (DHCP)
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#              relay server.  This is required when your DHCP server is on
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#              another network segment from the clients.
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### END INIT INFO
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#
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# The fields below are left around for legacy tools (will remove later).
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#
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# chkconfig: - 65 35
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# description: dhcrelay provides a relay for Dynamic Host Control Protocol.
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# processname: dhcrelay
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# # pidfile: /var/run/dhcrelay6.pid
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. /etc/rc.d/init.d/functions
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RETVAL=0
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prog=dhcrelay
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exec=/usr/sbin/dhcrelay
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lockfile=/var/lock/subsys/dhcrelay6
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pidfile=/var/run/dhcrelay6.pid
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config=/etc/sysconfig/dhcrelay6
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# The dhcrelay daemon uses the sysconfig file for configuration information.
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# There is no native configuration file for this program and you must specify
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# its settings on the command line.
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[ -f $config ] && . $config
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configtest() {
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    [ -x $exec ] || exit 5
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    [ -f $config ] || exit 6
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    [ -z "$UPPER_INTERFACES" ] && exit 6
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    [ -z "$LOWER_INTERFACES" ] && exit 6
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    return 0
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}
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rh_status() {
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    status -p $pidfile -l $(basename $lockfile) $exec
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}
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rh_status_q() {
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    rh_status >/dev/null 2>&1
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}
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start() {
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    [ `id -u` -eq 0 ] || exit 4
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    [ -x $exec ] || exit 5
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    [ -f $config ] || exit 6
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    rh_status_q && return 0
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    echo -n $"Starting $prog (DHCPv6): "
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    daemon --pidfile=$pidfile $exec -6 $DHCRELAYARGS $(for int in $LOWER_INTERFACES ; do echo -n " -l $int" ; done) \
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        $(for int in $UPPER_INTERFACES ; do echo -n " -u $int" ; done)  2>/dev/null
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    RETVAL=$?
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    echo
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    [ $RETVAL -eq 0 ] && touch $lockfile
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    return $RETVAL
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}
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stop() {
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    [ `id -u` -eq 0 ] || exit 4
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    rh_status_q || return 0
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    echo -n $"Shutting down $prog (DHCPv6): "
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    killproc -p $pidfile $prog
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    RETVAL=$?
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    echo
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    [ $RETVAL -eq 0 ] && rm -f $lockfile
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    return $RETVAL
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}
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usage() {
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    echo $"Usage: $0 {start|stop|restart|force-reload|condrestart|try-restart|configtest|status}"
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}
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if [ $# -gt 1 ]; then
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    exit 2
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fi
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case "$1" in
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    start)
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        start
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        ;;
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    stop)
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        stop
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        ;;
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    restart|force-reload)
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        stop ; start
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        ;;
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    condrestart|try-restart)
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        rh_status_q || exit 0
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        stop ; start
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        ;;
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    reload)
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        usage
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        # unimplemented feature
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        exit 3
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        ;;
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    configtest)
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        configtest
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        ;;
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    status)
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        rh_status
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        ;;
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    *)
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        usage
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        exit 2
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        ;;
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esac
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exit $?