From 2f7851336bd78eb3cc40c0e576d6d4f8319106a6 Mon Sep 17 00:00:00 2001
From: helixhorned <helixhorned@1a8010ca-5511-0410-912e-c29ae57300e0>
Date: Wed, 21 Dec 2011 18:43:24 +0000
Subject: [PATCH] Fix out-of-bounds write when passing a map filename to
 Mapster32.

git-svn-id: https://svn.eduke32.com/eduke32@2194 1a8010ca-5511-0410-912e-c29ae57300e0
---
 polymer/eduke32/build/src/build.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/polymer/eduke32/build/src/build.c b/polymer/eduke32/build/src/build.c
index b5eb70f78..e3751050c 100644
--- a/polymer/eduke32/build/src/build.c
+++ b/polymer/eduke32/build/src/build.c
@@ -496,10 +496,11 @@ int32_t app_main(int32_t argc, const char **argv)
             }
             continue;
         }
+
         if (!boardfilename[0])
         {
             Bstrncpy(boardfilename, argv[i], BMAX_PATH);
-            boardfilename[i-BMAX_PATH] = 0;
+            boardfilename[BMAX_PATH-1] = 0;
         }
     }
     if (boardfilename[0] == 0)