From af393afc090259d44cdc1ae69effdd02efc1628d Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Thu, 30 Aug 2018 09:08:33 -0400
Subject: [PATCH] make preload script for testing a bit more robust

---
 preload.sh | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/preload.sh b/preload.sh
index 40d13f5..f6b155e 100755
--- a/preload.sh
+++ b/preload.sh
@@ -1,5 +1,6 @@
 #!/bin/bash
 
-dir=$(cd "$(dirname ${BASH_SOURCE[0]})" && pwd)
-export LD_PRELOAD+=" $dir/hardened_malloc.so"
-exec $@
+dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+[[ $LD_PRELOAD ]] && LD_PRELOAD+=" "
+export LD_PRELOAD+="$dir/hardened_malloc.so"
+exec "$@"