#!/bin/sh
#----------------------------------------------------------------------------
# /etc/ppp/ipv6-down800.dns                                      __FLI4LVER__
#
# called whenever an IPv6 PPP connection over default circuit has been shut
# down and dnsmasq is installed
#
# Last Update:  $Id$
#----------------------------------------------------------------------------

resolv_file=/etc/resolv.dnsmasq

# is a default-route-interface going down?
if [ "$is_default_route" = "yes" ]
then
    if lock_resource $(basename $resolv_file) ipv6-down800.dns
    then
        # does /etc/resolv.dnsmasq.bak exist?
        if [ -f $resolv_file.bak ]
        then
            # yes, restore etc/resolv.dnsmasq
            mv $resolv_file.bak $resolv_file
            chown dns:dns $resolv_file
            echo "$resolv_file restored."
            killall -HUP dnsmasq
        fi
        unlock_resource $(basename $resolv_file) ipv6-down800.dns
    fi
fi