#!/bin/bash

OUT_DIR=${1}

if [ "" = "${OUT_DIR}" ]
then
  OUT_DIR=/etc/unbound
fi

cd ${OUT_DIR}

wget 'http://secspider.cs.ucla.edu/trust-anchors.conf' --quiet -O ./trust-anchors.conf.tmp
if test 0 -ne $?
then
  echo "Unable to grab TAs"
else
  cmp ./trust-anchors.conf ./trust-anchors.conf.tmp >/dev/null
  if test 0 -ne $?
  then
    cp ./trust-anchors.conf.tmp ./trust-anchors.conf
    /etc/init.d/unbound restart
  fi

  rm -f ./trust-anchors.conf.tmp
fi