#!/usr/bin/env bash

run_directory=$(dirname $(readlink -f "$0"))

source "$run_directory/variables.conf"

# count lines in resolv.conf
lines=$(cat /run/libreelec/resolv.conf | wc -l)
# count number of 'nameserver' entries
count=$(grep -c 'nameserver' /run/libreelec/resolv.conf)

cp /run/libreelec/resolv.conf /run/libreelec/resolv.conf.bck
sed -i "$((lines - count + 1))s/^/nameserver $dns_server\n/" /run/libreelec/resolv.conf

exit 0