Something

ln -sf /etc/resolv.conf /tmp/resolv.conf
ln -sf /tmp/resolv.conf /tmp/resolv.conf.auto

udhcpc() {
  rm /tmp/resolv.conf.auto
  echo $automatic > /tmp/resolv.conf.auto
}


dnsmasq() {
  echo 127.0.0.1 -> /tmp/resolv.conf
  read from /tmp/resolv.conf.auto
}