From 722d90750426d9beb6668a4d485d0cf436827718 Mon Sep 17 00:00:00 2001
From: morkt <muvluv.ru@gmail.com>
Date: Thu, 5 Mar 2015 17:37:22 +0400
Subject: [PATCH] (ReadMetaData): check unpacked bitmap signature.

---
 ArcFormats/ImageTGF.cs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ArcFormats/ImageTGF.cs b/ArcFormats/ImageTGF.cs
index a3281d1f..d8f2d0ce 100644
--- a/ArcFormats/ImageTGF.cs
+++ b/ArcFormats/ImageTGF.cs
@@ -66,6 +66,8 @@ namespace GameRes.Formats.Tactics
             {
                 reader.Unpack();
                 var bmp = reader.Data;
+                if (bmp[0] != 'B' || bmp[1] != 'M')
+                    return null;
                 return new TgfMetaData
                 {
                     Width = LittleEndian.ToUInt32 (bmp, 0x12),