#!/bin/sh

if [ $(id -u) -ne 0 ]; then
  printf "Script must be run as root. Try 'sudo familyshield $1'\n"
  exit 1
fi

sed /etc/dhcpcd.conf -i -e "/208.67.222.123/d"

if [ "$1" != "off" ] ; then
    sed /etc/dhcpcd.conf -i -e "$ s/$/\nstatic domain_name_servers=208.67.222.123 208.67.220.123/"
    echo "OpenDNS Family Shield is enabled; please reboot for change to take effect"
else
    echo "OpenDNS Family Shield is disabled; please reboot for change to take effect"
fi
