From cb5107f97fa37e0e0225b741c3b542acda359016 Mon Sep 17 00:00:00 2001
From: Darkvater <darkvater@openttd.org>
Date: Tue, 17 May 2005 20:58:58 +0000
Subject: (svn r2345) - Fix: Don't allow stuff to be renamed to nothing if we
 don't support it. Only valid ones are signs (delete) and waypoints (rename to
 default).

---
 engine.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'engine.c')

diff --git a/engine.c b/engine.c
index 11746e747..85d161127 100644
--- a/engine.c
+++ b/engine.c
@@ -887,7 +887,7 @@ int32 CmdRenameEngine(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
 	StringID str;
 
-	if (!IsEngineIndex(p1)) return CMD_ERROR;
+	if (!IsEngineIndex(p1) || _cmd_text[0] == '\0') return CMD_ERROR;
 
 	str = AllocateNameUnique(_cmd_text, 0);
 	if (str == 0) return CMD_ERROR;
-- 
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