#!/usr/bin/env bash

OS=$(uname -s)
REL=$(uname -r)

function sorry()
{
    echo "Sorry. I do not know how to flush the DNS on this OS."
    echo "Once you find out, edit $(readlink ${0})."
    exit 1
}

case ${OS} in
    Darwin) PROD_VER=$(sw_vers -productVersion)
            case ${PROD_VER} in
                10.10.3|\
                10.10.2|\
                10.10.1|\
                10.10.0|\
                  10.10) sudo discoveryutil mdnsflushcache
                         ;;

                 10.6.*|\
                   10.6) sudo dscacheutil -flushcache
                         ;;

                      *) sudo killall -HUP mDNSResponder
                         ;;
            esac
            ;;

         *) sorry
            ;;
esac

exit 0