From 45b53659d30fa443cee97236f93d1c946b048d3d Mon Sep 17 00:00:00 2001
From: eqawasm <86770917+eqawasm@users.noreply.github.com>
Date: Wed, 17 May 2023 14:02:25 -0400
Subject: [PATCH] Update unshield.c

fix path traversal bug
---
 src/unshield.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/unshield.c b/src/unshield.c
index 0481b872..dbb89b72 100644
--- a/src/unshield.c
+++ b/src/unshield.c
@@ -493,6 +493,7 @@ static bool extract_file(Unshield* unshield, const char* prefix, int index)
   /* use GNU extension to return non-existing files to real_output_directory */
   realpath(output_directory, real_output_directory);
   realpath(filename, real_filename);
+	strncat(real_output_directory, "/", PATH_MAX);
   if (real_filename == NULL || strncmp(real_filename,
                                        real_output_directory,
                                        strlen(real_output_directory)) != 0)