#!/bin/bash

set -e

tmpfile=$(mktemp)
if [ ! -w $tmpfile ] ; then
        echo "Failed to create tmp file" >&2
        exit 0
fi

tmpdir1=$(mktemp -d)
if [ ! -d $tmpdir1 ] ; then
        echo "Failed to create tmp directory" >&2
        exit 0
fi

tmpfiles=""
for i in `seq -w 1 32`; do
        tmpfile2=$(mktemp -p $tmpdir1)
        if [ ! -w $tmpfile2 ] ; then
                echo "Failed to create tmp file" >&2
                exit 0
        fi
        tmpfiles="$tmpfiles $tmpfile2"
done

trap "rm -rf $tmpfile $tmpfiles && rmdir $tmpdir1" EXIT # cleanup if aborted

RULESET=" \
include \"$tmpdir1/*\"
"

echo "$RULESET" > $tmpfile

$NFT -f $tmpfile
if [ $? -ne 0 ] ; then
	echo "E: unable to load good ruleset" >&2
	exit 1
fi