From a50eaacb1309f4c1e11bf63a20cef3499a47b6ca Mon Sep 17 00:00:00 2001
From: Ladislav Zezula <zezula@volny.cz>
Date: Thu, 24 Apr 2025 11:43:27 +0200
Subject: Fixed bug in verifying signatures on MPQs version 2

---
 src/SBaseFileTable.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/SBaseFileTable.cpp')

diff --git a/src/SBaseFileTable.cpp b/src/SBaseFileTable.cpp
index d2d5bc3..e4ce6f6 100644
--- a/src/SBaseFileTable.cpp
+++ b/src/SBaseFileTable.cpp
@@ -586,6 +586,9 @@ DWORD ConvertMpqHeaderToFormat4(
             pHeader->BlockTableSize64 = (pHeader->dwBlockTableSize * sizeof(TMPQBlock));
             BlockTablePos64 = MAKE_OFFSET64(pHeader->wBlockTablePosHi, pHeader->dwBlockTablePos);
 
+            // Supply the 64-bit archive size for signature verification
+            pHeader->ArchiveSize64 = pHeader->dwArchiveSize;
+
             // We require the block table to follow hash table
             if(BlockTablePos64 >= HashTablePos64)
             {
@@ -600,7 +603,6 @@ DWORD ConvertMpqHeaderToFormat4(
             }
             else
             {
-                pHeader->ArchiveSize64 = pHeader->dwArchiveSize;
                 ha->dwFlags |= MPQ_FLAG_MALFORMED;
             }
 
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