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-rw-r--r--src/SFileOpenArchive.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/SFileOpenArchive.cpp b/src/SFileOpenArchive.cpp
index 2cb6698..62effe7 100644
--- a/src/SFileOpenArchive.cpp
+++ b/src/SFileOpenArchive.cpp
@@ -369,8 +369,8 @@ bool WINAPI SFileOpenArchive(
// higher than 0x10000000, it would overflow in 32-bit version
// Observed in the malformed Warcraft III maps
// Example map: MPQ_2016_v1_ProtectedMap_TableSizeOverflow.w3x
- ha->pHeader->dwBlockTableSize = MPQ_BLOCK_INDEX(ha->pHeader->dwBlockTableSize);
- ha->pHeader->dwHashTableSize = MPQ_BLOCK_INDEX(ha->pHeader->dwHashTableSize);
+ ha->pHeader->dwBlockTableSize = (ha->pHeader->dwBlockTableSize & BLOCK_INDEX_MASK);
+ ha->pHeader->dwHashTableSize = (ha->pHeader->dwHashTableSize & BLOCK_INDEX_MASK);
// Both MPQ_OPEN_NO_LISTFILE or MPQ_OPEN_NO_ATTRIBUTES trigger read only mode
if(dwFlags & (MPQ_OPEN_NO_LISTFILE | MPQ_OPEN_NO_ATTRIBUTES))