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+ Support for MPQs that have invalid (and ignored) flags in the block table

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+ Support for MPQs that have malformed block indexes (0x8000xxxx or 0x4000xxxx)
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Ladislav Zezula
2016-05-27 16:50:50 +02:00
parent f1655f8afe
commit 47b6b6eb4a
5 changed files with 36 additions and 16 deletions
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4
src/SFileOpenArchive.cpp
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@@ -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->dwHashTableSize &= 0x0FFFFFFF;
ha->pHeader->dwBlockTableSize &= 0x0FFFFFFF;
ha->pHeader->dwBlockTableSize = MPQ_BLOCK_INDEX(ha->pHeader->dwBlockTableSize);
ha->pHeader->dwHashTableSize = MPQ_BLOCK_INDEX(ha->pHeader->dwHashTableSize);
// Both MPQ_OPEN_NO_LISTFILE or MPQ_OPEN_NO_ATTRIBUTES trigger read only mode
if(dwFlags & (MPQ_OPEN_NO_LISTFILE | MPQ_OPEN_NO_ATTRIBUTES))