File: squid.rc

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#!/sbin/sh

# Squid Internet Object Cache startup
# AUTHOR: Markus Gyger
# This is squid's startup file /sbin/init.d/squid or /etc/init.d/squid


PATH=/usr/local/squid/sbin:/usr/sbin:/usr/bin:/sbin:/bin
export PATH


config()
{
    # SGI IRIX 6.2
    if [ -f /sbin/chkconfig ]
    then if /sbin/chkconfig squid
	 then if [ -f /var/config/squid.options ]
	      then . /var/config/squid.options
	      fi
	      SQUID=1
	 else SQUID=0
	 fi

    # Digital UNIX
    elif [ -f /usr/sbin/rcmgr ]
    then SQUID=`/usr/sbin/rcmgr get SQUID 0`
	 SQUID_OPTIONS=`/usr/sbin/rcmgr get SQUID_OPTIONS "-s"`
	 SQUID_RESPAWN=`/usr/sbin/rcmgr get SQUID_RESPAWN 1`

    # HP-UX 10 / Linux
    elif [ -f /etc/rc.config ]
    then . /etc/rc.config

    # SUN Solaris 2
    else SQUID=1
	 SQUID_OPTIONS="-s"
	 SQUID_RESPAWN=1
    fi

    [ 1 = "${SQUID-}" ]
}


respawn()
{
    trap "" 1
    fails=0
    while [ $fails -le 5 ]
    do  start=`date +%d%H%M%S`
	if "$@"
	then logger -t "$1" -p local4.notice \
		 "respawn[$$]: Exiting due to shutdown"
	     return 0
	fi
	stop=`date +%d%H%M%S`
	time=`expr $stop - $start`
	[ "$time" -gt 10 ] && fails=0
	fails=`expr $fails + 1`
    done

    logger -t "$1" -p local4.alert \
	"respawn[$$]: Exiting due to repeated, frequent failures"
    return 1
}


case $* in
start_msg)
    echo "Start Squid Internet Object Cache"
    ;;

stop_msg)
    echo "Stopping Squid Internet Object Cache"
    ;;

start)
    config || exit 2  # Squid not enabled

    if whence=`type squid 2>&1`
    then trap "" 1
	 if [ 0 = "${SQUID_RESPAWN-}" ]
	 then         squid ${SQUID_OPTIONS-} &
	 else respawn squid ${SQUID_OPTIONS-} &
	 fi

    else echo "ERROR: $whence" >&2
	 exit 1
    fi
    ;;

stop)
    config || exit 2  # Squid not enabled

    squid ${SQUID_OPTIONS-} -k shutdown || exit 1
    ;;

reconf*|rotate|int*|debug|check|kill)
    config

    squid ${SQUID_OPTIONS-} -k "$1"
    ;;

*)
    echo "usage: $0 {start|stop|reconfigure|rotate|interrupt|debug|check|kill}" >&2
    echo "    start        start squid" >&2
    echo "    stop         clean shutdown" >&2
    echo "    reconfigure  reread configuration files" >&2
    echo "    rotate       rotate log files" >&2
    echo "    interrupt    quick clean shutdown " >&2
    echo "    debug        toggle debug logging" >&2
    echo "    check        check for running squid" >&2
    echo "    kill         terminate squid by brute force" >&2

    exit 1
    ;;
esac

[ $? -eq 0 ]  # only 0 and 1 exit values allowed
exit