update routing from $new_rfc3442_classless_static_routes

dhclient-exit-hooks (text/plain), 1.00 KB, created by Alex Efros on 2010-10-27 18:40:27 UTC

#!/bin/sh -x
if [ x"$new_rfc3442_classless_static_routes" != x"" ]; then

    if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \
       [ x$reason = xREBIND ] || [ x$reason = xREBOOT ]; then
        routes=($new_rfc3442_classless_static_routes)

        for(( i=0; i < ${#routes[@]}; )); do
            net_length=${routes[$i]}

            ((i++))

            net_address=(0 0 0 0)
            for(( j=0; j < $[$net_length / 8 + ($net_length % 8 ? 1 : 0)]; j++, i++)); do
                net_address[$j]=${routes[$i]}
            done

            gateway=(0 0 0 0)
            for (( j=0; j < 4; j++, i++ )); do
                gateway[$j]=${routes[$i]}
            done

            old_IFS="$IFS"
            IFS='.'

            if [ x"$net_length" == x"32" ]; then
                /sbin/route add -host "${net_address[*]}" gw "${gateway[*]}"
            else
                /sbin/route add -net "${net_address[*]}/$net_length" gw "${gateway[*]}"
            fi
            IFS="$old_IFS"

        done

    fi
fi