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MIX files are now considered Watctaft III maps

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Ladislav Zezula
2020-03-25 14:19:09 +01:00
parent 84b1d23457
commit 468292a0c4
2 changed files with 23 additions and 3 deletions
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20
src/SFileOpenArchive.cpp
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@@ -41,12 +41,25 @@ static bool IsWarcraft3Map(DWORD * HeaderData)
return (DwordValue0 == 0x57334D48 && DwordValue1 == 0x00000000);
}
static bool IsDllFile(LPBYTE pbHeaderBuffer, size_t cbBytesAvailable)
{
// MIX files are DLL files that contain MPQ in overlay.
// Only Warcraft III is able to load them, so we consider them MPQs v 1.0
if(cbBytesAvailable > 0x200 && pbHeaderBuffer[0] == 'M' && pbHeaderBuffer[1] == 'Z')
{
DWORD e_lfanew = *(PDWORD)(pbHeaderBuffer + 0x3C);
if(0 < e_lfanew && e_lfanew < 0x10000)
return true;
}
return false;
}
static TMPQUserData * IsValidMpqUserData(ULONGLONG ByteOffset, ULONGLONG FileSize, void * pvUserData)
{
TMPQUserData * pUserData;
// BSWAP the source data and copy them to our buffer
BSWAP_ARRAY32_UNSIGNED(&pvUserData, sizeof(TMPQUserData));
BSWAP_ARRAY32_UNSIGNED(pvUserData, sizeof(TMPQUserData));
pUserData = (TMPQUserData *)pvUserData;
// Check the sizes
@@ -260,7 +273,10 @@ bool WINAPI SFileOpenArchive(
break;
}
bIsWarcraft3Map = IsWarcraft3Map((DWORD *)pbHeaderBuffer);
if (IsWarcraft3Map((DWORD *)pbHeaderBuffer))
bIsWarcraft3Map = true;
if (IsDllFile(pbHeaderBuffer, dwBytesAvailable))
bIsWarcraft3Map = true;
}
// Search the header buffer