From 20bb99e1b76aacb43ac4f59e255e7c9fc3291c9d Mon Sep 17 00:00:00 2001
From: "Julian M. Kunkel" <juliankunkel@googlemail.com>
Date: Sat, 19 Jan 2019 17:00:49 +0000
Subject: [PATCH] Potential fix for #127 => Segmentation fault due to memory
 protection.

---
 src/mdtest.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/mdtest.c b/src/mdtest.c
index afc4fc67..f1eb08d0 100644
--- a/src/mdtest.c
+++ b/src/mdtest.c
@@ -215,6 +215,8 @@ void parse_dirpath(char *dirpath_arg) {
         FAIL("out of memory");
     }
 
+    // prevent changes to the original dirpath_arg
+    dirpath_arg = strdup(dirpath_arg);
     token = strtok(dirpath_arg, delimiter_string);
     while (token != NULL) {
         filenames[i] = token;