From fc9f02cee3c6cbb82c70fbf7285b73092004973f Mon Sep 17 00:00:00 2001
From: Hiltjo Posthuma <hiltjo@codemadness.org>
Date: Wed, 5 Jul 2017 19:06:04 +0200
Subject: [PATCH] memcpy regions may not overlap, use memmove

for example a path: "/../../" made quark abort().
---
 quark.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/quark.c b/quark.c
index e3c3058..84b358b 100644
--- a/quark.c
+++ b/quark.c
@@ -531,7 +531,7 @@ squash:
 			*p = '\0';
 			len = p - path;
 		} else {
-			memcpy(p, q + 1, len - ((q + 1) - path) + 2);
+			memmove(p, q + 1, len - ((q + 1) - path) + 2);
 			len -= (q + 1) - p;
 		}
 	}