#!/bin/bash
# Must not be confused in matched subdirectories.
set -e
tmpdir1=$(mktemp -d)
if [ ! -d $tmpdir1 ] ; then
echo "Failed to create tmp directory" >&2
exit 0
fi
tmpfile1=$(mktemp -p $tmpdir1)
if [ ! -w $tmpfile1 ] ; then
echo "Failed to create tmp file" >&2
exit 0
fi
tmpdir2=$(mktemp -p $tmpdir1 -d)
if [ ! -w $tmpdir2 ] ; then
echo "Failed to create the second tmp directory" >&2
exit 0
fi
tmpdir3=$(mktemp -p $tmpdir2 -d)
if [ ! -w $tmpdir3 ] ; then
echo "Failed to create the third tmp directory" >&2
exit 0
fi
# cleanup if aborted
trap "rm -rf $tmpfile1 && rmdir $tmpdir3 && rmdir $tmpdir2 && rmdir $tmpdir1" EXIT
RULESET1="include \"$tmpdir2/*\""
echo "$RULESET1" > $tmpfile1
$NFT -f $tmpfile1
if [ $? -ne 0 ] ; then
echo "E: tried to include a matched directory" >&2
exit 1
fi