#! /bin/sh
# Frederic Bourgeois 29/08/06
STATE_OK=0
STATE_WARNING=1
STATE_CRITICAL=2

export STATE_OK
export STATE_WARNING
export STATE_CRITICAL

TAIL="/usr/bin/tail"
RM="/bin/rm"
IFPLUG="/sbin/ifplugstatus"
GREP="/bin/grep"

print_usage() {
    echo "Usage: -i ethx"
}

ethtest() {
        RESULT=`$IFPLUG $IF | $GREP -c "beat detected"`

        if [ "$RESULT" = 1 ]; then
            echo "Link: UP"
            exit ${STATE_OK}
        else
            echo "Link: DOWN"
	    exit ${STATE_CRITICAL}
        fi
}

if [ $# -lt 1 ]; then
    print_usage
    exit ${STATE_UNKNOWN}
fi

while test -n "$1"; do
    case "$1" in
        -i)
            IF=$2
            ethtest
            shift
            ;;
        *)
            echo "Unknown argument: $1"
            print_usage
            exit ${STATE_UNKNOWN}
            ;;
    esac
    shift
done