From 9f843fb4459ae3b93046af784df18937fca6fa9c Mon Sep 17 00:00:00 2001
From: helixhorned <helixhorned@1a8010ca-5511-0410-912e-c29ae57300e0>
Date: Thu, 21 Feb 2013 18:53:42 +0000
Subject: [PATCH] CON qstrcpy: don't call strcpy() with identical source and
 destination quotes.

Thus making the identical source and destination quote number case into the
expected no-op instead of being undefined behavior.

git-svn-id: https://svn.eduke32.com/eduke32@3510 1a8010ca-5511-0410-912e-c29ae57300e0
---
 polymer/eduke32/source/gameexec.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/polymer/eduke32/source/gameexec.c b/polymer/eduke32/source/gameexec.c
index 92f4eeebe..70d6017a2 100644
--- a/polymer/eduke32/source/gameexec.c
+++ b/polymer/eduke32/source/gameexec.c
@@ -1985,7 +1985,8 @@ skip_check:
                     break;
                 case CON_QSTRCPY:
                     if ((ScriptQuotes[i] == NULL || ScriptQuotes[j] == NULL)) goto nullquote;
-                    Bstrcpy(ScriptQuotes[i],ScriptQuotes[j]);
+                    if (i != j)
+                        Bstrcpy(ScriptQuotes[i],ScriptQuotes[j]);
                     break;
                 case CON_CHANGESPRITESECT:
                     if ((unsigned)i >= MAXSPRITES)