bool WINAPI SFileGetFileInfo(
HANDLE hMpqOrFile,
SFileInfoClass InfoClass,
void * pvFileInfo,
DWORD cbFileInfo,
LPDWORD pcbLengthNeeded)
{
MPQ_SIGNATURE_INFO SignatureInfo;
TMPQArchive * ha = NULL;
TFileEntry * pFileEntry = NULL;
ULONGLONG Int64Value = 0;
ULONGLONG ByteOffset = 0;
TMPQHash * pHash;
TMPQFile * hf = NULL;
void * pvSrcFileInfo = NULL;
DWORD cbSrcFileInfo = 0;
DWORD dwInt32Value = 0;
int nInfoType = SFILE_INFO_TYPE_INVALID_HANDLE;
int nError = ERROR_SUCCESS;
switch(InfoClass)
{
case SFileMpqFileName:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = (void *)FileStream_GetFileName(ha->pStream);
cbSrcFileInfo = (DWORD)(_tcslen((TCHAR *)pvSrcFileInfo) + 1) * sizeof(TCHAR);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqStreamBitmap:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
return FileStream_GetBitmap(ha->pStream, pvFileInfo, cbFileInfo, pcbLengthNeeded);
break;
case SFileMpqUserDataOffset:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
nInfoType = SFILE_INFO_TYPE_NOT_FOUND;
if(ha->pUserData != NULL)
{
pvSrcFileInfo = &ha->UserDataPos;
cbSrcFileInfo = sizeof(ULONGLONG);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
}
break;
case SFileMpqUserDataHeader:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
nInfoType = SFILE_INFO_TYPE_NOT_FOUND;
if(ha->pUserData != NULL)
{
ByteOffset = ha->UserDataPos;
cbSrcFileInfo = sizeof(TMPQUserData);
nInfoType = SFILE_INFO_TYPE_READ_FROM_FILE;
}
}
break;
case SFileMpqUserData:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
nInfoType = SFILE_INFO_TYPE_NOT_FOUND;
if(ha->pUserData != NULL)
{
ByteOffset = ha->UserDataPos + sizeof(TMPQUserData);
cbSrcFileInfo = ha->pUserData->dwHeaderOffs - sizeof(TMPQUserData);
nInfoType = SFILE_INFO_TYPE_READ_FROM_FILE;
}
}
break;
case SFileMpqHeaderOffset:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &ha->MpqPos;
cbSrcFileInfo = sizeof(ULONGLONG);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqHeaderSize:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &ha->pHeader->dwHeaderSize;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqHeader:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
ByteOffset = ha->MpqPos;
cbSrcFileInfo = ha->pHeader->dwHeaderSize;
nInfoType = SFILE_INFO_TYPE_READ_FROM_FILE;
}
break;
case SFileMpqHetTableOffset:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &ha->pHeader->HetTablePos64;
cbSrcFileInfo = sizeof(ULONGLONG);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqHetTableSize:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &ha->pHeader->HetTableSize64;
cbSrcFileInfo = sizeof(ULONGLONG);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqHetHeader:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
nInfoType = SFILE_INFO_TYPE_NOT_FOUND;
pvSrcFileInfo = LoadExtTable(ha, ha->pHeader->HetTablePos64, (size_t)ha->pHeader->HetTableSize64, HET_TABLE_SIGNATURE, MPQ_KEY_HASH_TABLE);
if(pvSrcFileInfo != NULL)
{
cbSrcFileInfo = sizeof(TMPQHetHeader);
nInfoType = SFILE_INFO_TYPE_ALLOCATED;
}
}
break;
case SFileMpqHetTable:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
nInfoType = SFILE_INFO_TYPE_NOT_FOUND;
pvSrcFileInfo = LoadHetTable(ha);
if(pvSrcFileInfo != NULL)
{
cbSrcFileInfo = sizeof(void *);
nInfoType = SFILE_INFO_TYPE_TABLE_POINTER;
}
}
break;
case SFileMpqBetTableOffset:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &ha->pHeader->BetTablePos64;
cbSrcFileInfo = sizeof(ULONGLONG);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqBetTableSize:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &ha->pHeader->BetTableSize64;
cbSrcFileInfo = sizeof(ULONGLONG);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqBetHeader:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
nInfoType = SFILE_INFO_TYPE_NOT_FOUND;
pvSrcFileInfo = LoadExtTable(ha, ha->pHeader->BetTablePos64, (size_t)ha->pHeader->BetTableSize64, BET_TABLE_SIGNATURE, MPQ_KEY_BLOCK_TABLE);
if(pvSrcFileInfo != NULL)
{
// It is allowed for the caller to only require BET header.
cbSrcFileInfo = sizeof(TMPQBetHeader) + ((TMPQBetHeader *)pvSrcFileInfo)->dwFlagCount * sizeof(DWORD);
if(cbFileInfo == sizeof(TMPQBetHeader))
cbSrcFileInfo = sizeof(TMPQBetHeader);
nInfoType = SFILE_INFO_TYPE_ALLOCATED;
}
}
break;
case SFileMpqBetTable:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
nInfoType = SFILE_INFO_TYPE_NOT_FOUND;
pvSrcFileInfo = LoadBetTable(ha);
if(pvSrcFileInfo != NULL)
{
cbSrcFileInfo = sizeof(void *);
nInfoType = SFILE_INFO_TYPE_TABLE_POINTER;
}
}
break;
case SFileMpqHashTableOffset:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
Int64Value = MAKE_OFFSET64(ha->pHeader->wHashTablePosHi, ha->pHeader->dwHashTablePos);
pvSrcFileInfo = &Int64Value;
cbSrcFileInfo = sizeof(ULONGLONG);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqHashTableSize64:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &ha->pHeader->HashTableSize64;
cbSrcFileInfo = sizeof(ULONGLONG);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqHashTableSize:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &ha->pHeader->dwHashTableSize;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqHashTable:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL && ha->pHashTable != NULL)
{
pvSrcFileInfo = ha->pHashTable;
cbSrcFileInfo = ha->dwHashTableSize * sizeof(TMPQHash);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqBlockTableOffset:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
Int64Value = MAKE_OFFSET64(ha->pHeader->wBlockTablePosHi, ha->pHeader->dwBlockTablePos);
pvSrcFileInfo = &Int64Value;
cbSrcFileInfo = sizeof(ULONGLONG);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqBlockTableSize64:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &ha->pHeader->BlockTableSize64;
cbSrcFileInfo = sizeof(ULONGLONG);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqBlockTableSize:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &ha->pHeader->dwBlockTableSize;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqBlockTable:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
nInfoType = SFILE_INFO_TYPE_NOT_FOUND;
if(MAKE_OFFSET64(ha->pHeader->wBlockTablePosHi, ha->pHeader->dwBlockTablePos) != 0)
{
cbSrcFileInfo = ha->pHeader->dwBlockTableSize * sizeof(TMPQBlock);
if(cbFileInfo >= cbSrcFileInfo)
pvSrcFileInfo = LoadBlockTable(ha, true);
nInfoType = SFILE_INFO_TYPE_ALLOCATED;
}
}
break;
case SFileMpqHiBlockTableOffset:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &ha->pHeader->HiBlockTablePos64;
cbSrcFileInfo = sizeof(ULONGLONG);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqHiBlockTableSize64:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &ha->pHeader->HiBlockTableSize64;
cbSrcFileInfo = sizeof(ULONGLONG);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqHiBlockTable:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
nInfoType = SFILE_INFO_TYPE_NOT_FOUND;
if(ha->pHeader->HiBlockTablePos64 && ha->pHeader->HiBlockTableSize64)
{
assert(false);
}
}
break;
case SFileMpqSignatures:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL && QueryMpqSignatureInfo(ha, &SignatureInfo))
{
pvSrcFileInfo = &SignatureInfo.SignatureTypes;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqStrongSignatureOffset:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
nInfoType = SFILE_INFO_TYPE_NOT_FOUND;
if(QueryMpqSignatureInfo(ha, &SignatureInfo) && (SignatureInfo.SignatureTypes & SIGNATURE_TYPE_STRONG))
{
pvSrcFileInfo = &SignatureInfo.EndMpqData;
cbSrcFileInfo = sizeof(ULONGLONG);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
}
break;
case SFileMpqStrongSignatureSize:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
nInfoType = SFILE_INFO_TYPE_NOT_FOUND;
if(QueryMpqSignatureInfo(ha, &SignatureInfo) && (SignatureInfo.SignatureTypes & SIGNATURE_TYPE_STRONG))
{
dwInt32Value = MPQ_STRONG_SIGNATURE_SIZE + 4;
pvSrcFileInfo = &dwInt32Value;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
}
break;
case SFileMpqStrongSignature:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
nInfoType = SFILE_INFO_TYPE_NOT_FOUND;
if(QueryMpqSignatureInfo(ha, &SignatureInfo) && (SignatureInfo.SignatureTypes & SIGNATURE_TYPE_STRONG))
{
pvSrcFileInfo = SignatureInfo.Signature;
cbSrcFileInfo = MPQ_STRONG_SIGNATURE_SIZE + 4;
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
}
break;
case SFileMpqArchiveSize64:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &ha->pHeader->ArchiveSize64;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqArchiveSize:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &ha->pHeader->dwArchiveSize;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqMaxFileCount:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &ha->dwMaxFileCount;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqFileTableSize:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &ha->dwFileTableSize;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqSectorSize:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &ha->dwSectorSize;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqNumberOfFiles:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
pvSrcFileInfo = &dwInt32Value;
cbSrcFileInfo = sizeof(DWORD);
dwInt32Value = GetMpqFileCount(ha);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqRawChunkSize:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
nInfoType = SFILE_INFO_TYPE_NOT_FOUND;
if(ha->pHeader->dwRawChunkSize != 0)
{
pvSrcFileInfo = &ha->pHeader->dwRawChunkSize;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
}
break;
case SFileMpqStreamFlags:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
FileStream_GetFlags(ha->pStream, &dwInt32Value);
pvSrcFileInfo = &dwInt32Value;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileMpqFlags:
ha = IsValidMpqHandle(hMpqOrFile);
if(ha != NULL)
{
dwInt32Value = ha->dwFlags;
pvSrcFileInfo = &dwInt32Value;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileInfoPatchChain:
hf = IsValidFileHandle(hMpqOrFile);
if(hf != NULL)
return GetFilePatchChain(hf, pvFileInfo, cbFileInfo, pcbLengthNeeded);
break;
case SFileInfoFileEntry:
hf = IsValidFileHandle(hMpqOrFile);
if(hf != NULL && hf->pFileEntry != NULL)
{
pvSrcFileInfo = pFileEntry = hf->pFileEntry;
cbSrcFileInfo = sizeof(TFileEntry);
if(pFileEntry->szFileName != NULL)
cbSrcFileInfo += (DWORD)strlen(pFileEntry->szFileName) + 1;
nInfoType = SFILE_INFO_TYPE_FILE_ENTRY;
}
break;
case SFileInfoHashEntry:
hf = IsValidFileHandle(hMpqOrFile);
if(hf != NULL && hf->ha != NULL && hf->ha->pHashTable != NULL)
{
pvSrcFileInfo = hf->ha->pHashTable + hf->pFileEntry->dwHashIndex;
cbSrcFileInfo = sizeof(TMPQHash);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileInfoHashIndex:
hf = IsValidFileHandle(hMpqOrFile);
if(hf != NULL && hf->pFileEntry != NULL)
{
pvSrcFileInfo = &hf->pFileEntry->dwHashIndex;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileInfoNameHash1:
hf = IsValidFileHandle(hMpqOrFile);
if(hf != NULL && hf->ha != NULL && hf->ha->pHashTable != NULL)
{
pHash = hf->ha->pHashTable + hf->pFileEntry->dwHashIndex;
pvSrcFileInfo = &pHash->dwName1;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileInfoNameHash2:
hf = IsValidFileHandle(hMpqOrFile);
if(hf != NULL && hf->ha != NULL && hf->ha->pHashTable != NULL)
{
pHash = hf->ha->pHashTable + hf->pFileEntry->dwHashIndex;
pvSrcFileInfo = &pHash->dwName2;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileInfoNameHash3:
hf = IsValidFileHandle(hMpqOrFile);
if(hf != NULL && hf->pFileEntry != NULL)
{
pvSrcFileInfo = &hf->pFileEntry->FileNameHash;
cbSrcFileInfo = sizeof(ULONGLONG);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileInfoLocale:
hf = IsValidFileHandle(hMpqOrFile);
if(hf != NULL && hf->pFileEntry != NULL)
{
dwInt32Value = hf->pFileEntry->lcLocale;
pvSrcFileInfo = &dwInt32Value;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileInfoFileIndex:
hf = IsValidFileHandle(hMpqOrFile);
if(hf != NULL && hf->ha != NULL && hf->pFileEntry != NULL)
{
dwInt32Value = (DWORD)(hf->pFileEntry - hf->ha->pFileTable);
pvSrcFileInfo = &dwInt32Value;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileInfoByteOffset:
hf = IsValidFileHandle(hMpqOrFile);
if(hf != NULL && hf->pFileEntry != NULL)
{
pvSrcFileInfo = &hf->pFileEntry->ByteOffset;
cbSrcFileInfo = sizeof(ULONGLONG);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileInfoFileTime:
hf = IsValidFileHandle(hMpqOrFile);
if(hf != NULL && hf->pFileEntry != NULL)
{
pvSrcFileInfo = &hf->pFileEntry->FileTime;
cbSrcFileInfo = sizeof(ULONGLONG);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileInfoFileSize:
hf = IsValidFileHandle(hMpqOrFile);
if(hf != NULL && hf->pFileEntry != NULL)
{
pvSrcFileInfo = &hf->pFileEntry->dwFileSize;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileInfoCompressedSize:
hf = IsValidFileHandle(hMpqOrFile);
if(hf != NULL && hf->pFileEntry != NULL)
{
pvSrcFileInfo = &hf->pFileEntry->dwCmpSize;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileInfoFlags:
hf = IsValidFileHandle(hMpqOrFile);
if(hf != NULL && hf->pFileEntry != NULL)
{
pvSrcFileInfo = &hf->pFileEntry->dwFlags;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileInfoEncryptionKey:
hf = IsValidFileHandle(hMpqOrFile);
if(hf != NULL)
{
pvSrcFileInfo = &hf->dwFileKey;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
case SFileInfoEncryptionKeyRaw:
hf = IsValidFileHandle(hMpqOrFile);
if(hf != NULL && hf->pFileEntry != NULL)
{
dwInt32Value = hf->dwFileKey;
if(hf->pFileEntry->dwFlags & MPQ_FILE_FIX_KEY)
dwInt32Value = (dwInt32Value ^ hf->pFileEntry->dwFileSize) - (DWORD)hf->MpqFilePos;
pvSrcFileInfo = &dwInt32Value;
cbSrcFileInfo = sizeof(DWORD);
nInfoType = SFILE_INFO_TYPE_DIRECT_POINTER;
}
break;
default: // Invalid info class
SetLastError(ERROR_INVALID_PARAMETER);
return false;
}
// If we validated the handle and info class, give as much info as possible
if(nInfoType >= SFILE_INFO_TYPE_DIRECT_POINTER)
{
// Give the length needed, if wanted
if(pcbLengthNeeded != NULL)
pcbLengthNeeded[0] = cbSrcFileInfo;
// If the caller entered an output buffer, the output size must also be entered
if(pvFileInfo != NULL && cbFileInfo != 0)
{
// Check if there is enough space in the output buffer
if(cbSrcFileInfo <= cbFileInfo)
{
switch(nInfoType)
{
case SFILE_INFO_TYPE_DIRECT_POINTER:
case SFILE_INFO_TYPE_ALLOCATED:
assert(pvSrcFileInfo != NULL);
memcpy(pvFileInfo, pvSrcFileInfo, cbSrcFileInfo);
break;
case SFILE_INFO_TYPE_READ_FROM_FILE:
if(!FileStream_Read(ha->pStream, &ByteOffset, pvFileInfo, cbSrcFileInfo))
nError = GetLastError();
break;
case SFILE_INFO_TYPE_TABLE_POINTER:
assert(pvSrcFileInfo != NULL);
*(void **)pvFileInfo = pvSrcFileInfo;
pvSrcFileInfo = NULL;
break;
case SFILE_INFO_TYPE_FILE_ENTRY:
assert(pFileEntry != NULL);
ConvertFileEntryToSelfRelative((TFileEntry *)pvFileInfo, pFileEntry);
break;
}
}
else
{
nError = ERROR_INSUFFICIENT_BUFFER;
}
}
// Free the file info if needed
if(nInfoType == SFILE_INFO_TYPE_ALLOCATED && pvSrcFileInfo != NULL)
STORM_FREE(pvSrcFileInfo);
if(nInfoType == SFILE_INFO_TYPE_TABLE_POINTER && pvSrcFileInfo != NULL)
SFileFreeFileInfo(pvSrcFileInfo, InfoClass);
}
else
{
// Handle error cases
if(nInfoType == SFILE_INFO_TYPE_INVALID_HANDLE)
nError = ERROR_INVALID_HANDLE;
if(nInfoType == SFILE_INFO_TYPE_NOT_FOUND)
nError = ERROR_FILE_NOT_FOUND;
}
// Set the last error value, if needed
if(nError != ERROR_SUCCESS)
SetLastError(nError);
return (nError == ERROR_SUCCESS);
}
bool WINAPI SFileOpenArchive(
const TCHAR * szMpqName,
DWORD dwPriority,
DWORD dwFlags,
HANDLE * phMpq)
{
TMPQUserData * pUserData;
TFileStream * pStream = NULL; // Open file stream
TMPQArchive * ha = NULL; // Archive handle
TFileEntry * pFileEntry;
ULONGLONG FileSize = 0; // Size of the file
LPBYTE pbHeaderBuffer = NULL; // Buffer for searching MPQ header
DWORD dwStreamFlags = (dwFlags & STREAM_FLAGS_MASK);
bool bIsWarcraft3Map = false;
int nError = ERROR_SUCCESS;
// Verify the parameters
if(szMpqName == NULL || *szMpqName == 0 || phMpq == NULL)
{
SetLastError(ERROR_INVALID_PARAMETER);
return false;
}
// One time initialization of MPQ cryptography
InitializeMpqCryptography();
dwPriority = dwPriority;
// If not forcing MPQ v 1.0, also use file bitmap
dwStreamFlags |= (dwFlags & MPQ_OPEN_FORCE_MPQ_V1) ? 0 : STREAM_FLAG_USE_BITMAP;
// Open the MPQ archive file
pStream = FileStream_OpenFile(szMpqName, dwStreamFlags);
if(pStream == NULL)
return false;
// Check the file size. There must be at least 0x20 bytes
if(nError == ERROR_SUCCESS)
{
FileStream_GetSize(pStream, &FileSize);
if(FileSize < MPQ_HEADER_SIZE_V1)
nError = ERROR_BAD_FORMAT;
}
// Allocate the MPQhandle
if(nError == ERROR_SUCCESS)
{
if((ha = STORM_ALLOC(TMPQArchive, 1)) == NULL)
nError = ERROR_NOT_ENOUGH_MEMORY;
}
// Allocate buffer for searching MPQ header
if(nError == ERROR_SUCCESS)
{
pbHeaderBuffer = STORM_ALLOC(BYTE, HEADER_SEARCH_BUFFER_SIZE);
if(pbHeaderBuffer == NULL)
nError = ERROR_NOT_ENOUGH_MEMORY;
}
// Find the position of MPQ header
if(nError == ERROR_SUCCESS)
{
ULONGLONG SearchOffset = 0;
ULONGLONG EndOfSearch = FileSize;
DWORD dwStrmFlags = 0;
DWORD dwHeaderSize;
DWORD dwHeaderID;
bool bSearchComplete = false;
memset(ha, 0, sizeof(TMPQArchive));
ha->pfnHashString = HashStringSlash;
ha->pStream = pStream;
pStream = NULL;
// Set the archive read only if the stream is read-only
FileStream_GetFlags(ha->pStream, &dwStrmFlags);
ha->dwFlags |= (dwStrmFlags & STREAM_FLAG_READ_ONLY) ? MPQ_FLAG_READ_ONLY : 0;
// Also remember if we shall check sector CRCs when reading file
ha->dwFlags |= (dwFlags & MPQ_OPEN_CHECK_SECTOR_CRC) ? MPQ_FLAG_CHECK_SECTOR_CRC : 0;
// Also remember if this MPQ is a patch
ha->dwFlags |= (dwFlags & MPQ_OPEN_PATCH) ? MPQ_FLAG_PATCH : 0;
// Limit the header searching to about 130 MB of data
if(EndOfSearch > 0x08000000)
EndOfSearch = 0x08000000;
// Find the offset of MPQ header within the file
while(bSearchComplete == false && SearchOffset < EndOfSearch)
{
// Always read at least 0x1000 bytes for performance.
// This is what Storm.dll (2002) does.
DWORD dwBytesAvailable = HEADER_SEARCH_BUFFER_SIZE;
DWORD dwInBufferOffset = 0;
// Cut the bytes available, if needed
if((FileSize - SearchOffset) < HEADER_SEARCH_BUFFER_SIZE)
dwBytesAvailable = (DWORD)(FileSize - SearchOffset);
// Read the eventual MPQ header
if(!FileStream_Read(ha->pStream, &SearchOffset, pbHeaderBuffer, dwBytesAvailable))
{
nError = GetLastError();
break;
}
// There are AVI files from Warcraft III with 'MPQ' extension.
if(SearchOffset == 0)
{
if(IsAviFile((DWORD *)pbHeaderBuffer))
{
nError = ERROR_AVI_FILE;
break;
}
bIsWarcraft3Map = IsWarcraft3Map((DWORD *)pbHeaderBuffer);
}
// Search the header buffer
while(dwInBufferOffset < dwBytesAvailable)
{
// Copy the data from the potential header buffer to the MPQ header
memcpy(ha->HeaderData, pbHeaderBuffer + dwInBufferOffset, sizeof(ha->HeaderData));
// If there is the MPQ user data, process it
// Note that Warcraft III does not check for user data, which is abused by many map protectors
dwHeaderID = BSWAP_INT32_UNSIGNED(ha->HeaderData[0]);
if(bIsWarcraft3Map == false && (dwFlags & MPQ_OPEN_FORCE_MPQ_V1) == 0)
{
if(ha->pUserData == NULL && dwHeaderID == ID_MPQ_USERDATA)
{
// Verify if this looks like a valid user data
pUserData = IsValidMpqUserData(SearchOffset, FileSize, ha->HeaderData);
if(pUserData != NULL)
{
// Fill the user data header
ha->UserDataPos = SearchOffset;
ha->pUserData = &ha->UserData;
memcpy(ha->pUserData, pUserData, sizeof(TMPQUserData));
// Continue searching from that position
SearchOffset += ha->pUserData->dwHeaderOffs;
break;
}
}
}
// There must be MPQ header signature. Note that STORM.dll from Warcraft III actually
// tests the MPQ header size. It must be at least 0x20 bytes in order to load it
// Abused by Spazzler Map protector. Note that the size check is not present
// in Storm.dll v 1.00, so Diablo I code would load the MPQ anyway.
dwHeaderSize = BSWAP_INT32_UNSIGNED(ha->HeaderData[1]);
if(dwHeaderID == ID_MPQ && dwHeaderSize >= MPQ_HEADER_SIZE_V1)
{
// Now convert the header to version 4
nError = ConvertMpqHeaderToFormat4(ha, SearchOffset, FileSize, dwFlags);
bSearchComplete = true;
break;
}
// Check for MPK archives (Longwu Online - MPQ fork)
if(dwHeaderID == ID_MPK)
{
// Now convert the MPK header to MPQ Header version 4
nError = ConvertMpkHeaderToFormat4(ha, FileSize, dwFlags);
bSearchComplete = true;
break;
}
// If searching for the MPQ header is disabled, return an error
if(dwFlags & MPQ_OPEN_NO_HEADER_SEARCH)
{
nError = ERROR_NOT_SUPPORTED;
bSearchComplete = true;
break;
}
// Move the pointers
SearchOffset += 0x200;
dwInBufferOffset += 0x200;
}
}
// Did we identify one of the supported headers?
if(nError == ERROR_SUCCESS)
{
// Set the user data position to the MPQ header, if none
if(ha->pUserData == NULL)
ha->UserDataPos = SearchOffset;
// Set the position of the MPQ header
ha->pHeader = (TMPQHeader *)ha->HeaderData;
ha->MpqPos = SearchOffset;
ha->FileSize = FileSize;
// Sector size must be nonzero.
if(SearchOffset >= FileSize || ha->pHeader->wSectorSize == 0)
nError = ERROR_BAD_FORMAT;
}
}
// Fix table positions according to format
if(nError == ERROR_SUCCESS)
{
// Dump the header
// DumpMpqHeader(ha->pHeader);
// W3x Map Protectors use the fact that War3's Storm.dll ignores the MPQ user data,
// and ignores the MPQ format version as well. The trick is to
// fake MPQ format 2, with an improper hi-word position of hash table and block table
// We can overcome such protectors by forcing opening the archive as MPQ v 1.0
if(dwFlags & MPQ_OPEN_FORCE_MPQ_V1)
{
ha->pHeader->wFormatVersion = MPQ_FORMAT_VERSION_1;
ha->pHeader->dwHeaderSize = MPQ_HEADER_SIZE_V1;
ha->dwFlags |= MPQ_FLAG_READ_ONLY;
ha->pUserData = NULL;
}
// Both MPQ_OPEN_NO_LISTFILE or MPQ_OPEN_NO_ATTRIBUTES trigger read only mode
if(dwFlags & (MPQ_OPEN_NO_LISTFILE | MPQ_OPEN_NO_ATTRIBUTES))
ha->dwFlags |= MPQ_FLAG_READ_ONLY;
// Remember whether whis is a map for Warcraft III
if(bIsWarcraft3Map)
ha->dwFlags |= MPQ_FLAG_WAR3_MAP;
// Set the size of file sector
ha->dwSectorSize = (0x200 << ha->pHeader->wSectorSize);
// Verify if any of the tables doesn't start beyond the end of the file
nError = VerifyMpqTablePositions(ha, FileSize);
}
// Read the hash table. Ignore the result, as hash table is no longer required
// Read HET table. Ignore the result, as HET table is no longer required
if(nError == ERROR_SUCCESS)
{
nError = LoadAnyHashTable(ha);
}
// Now, build the file table. It will be built by combining
// the block table, BET table, hi-block table, (attributes) and (listfile).
if(nError == ERROR_SUCCESS)
{
nError = BuildFileTable(ha);
}
// Load the internal listfile and include it to the file table
if(nError == ERROR_SUCCESS && (dwFlags & MPQ_OPEN_NO_LISTFILE) == 0)
{
// Quick check for (listfile)
pFileEntry = GetFileEntryLocale(ha, LISTFILE_NAME, LANG_NEUTRAL);
if(pFileEntry != NULL)
{
// Ignore result of the operation. (listfile) is optional.
SFileAddListFile((HANDLE)ha, NULL);
ha->dwFileFlags1 = pFileEntry->dwFlags;
}
}
// Load the "(attributes)" file and merge it to the file table
if(nError == ERROR_SUCCESS && (dwFlags & MPQ_OPEN_NO_ATTRIBUTES) == 0 && (ha->dwFlags & MPQ_FLAG_BLOCK_TABLE_CUT) == 0)
{
// Quick check for (attributes)
pFileEntry = GetFileEntryLocale(ha, ATTRIBUTES_NAME, LANG_NEUTRAL);
if(pFileEntry != NULL)
{
// Ignore result of the operation. (attributes) is optional.
SAttrLoadAttributes(ha);
ha->dwFileFlags2 = pFileEntry->dwFlags;
}
}
// Remember whether the archive has weak signature. Only for MPQs format 1.0.
if(nError == ERROR_SUCCESS)
{
// Quick check for (signature)
pFileEntry = GetFileEntryLocale(ha, SIGNATURE_NAME, LANG_NEUTRAL);
if(pFileEntry != NULL)
{
// Just remember that the archive is weak-signed
assert((pFileEntry->dwFlags & MPQ_FILE_EXISTS) != 0);
ha->dwFileFlags3 = pFileEntry->dwFlags;
}
// Finally, set the MPQ_FLAG_READ_ONLY if the MPQ was found malformed
ha->dwFlags |= (ha->dwFlags & MPQ_FLAG_MALFORMED) ? MPQ_FLAG_READ_ONLY : 0;
}
// Cleanup and exit
if(nError != ERROR_SUCCESS)
{
FileStream_Close(pStream);
FreeArchiveHandle(ha);
SetLastError(nError);
ha = NULL;
}
// Free the header buffer
if(pbHeaderBuffer != NULL)
STORM_FREE(pbHeaderBuffer);
if(phMpq != NULL)
*phMpq = ha;
return (nError == ERROR_SUCCESS);
}
bool WINAPI SFileOpenArchive(
const TCHAR * szMpqName,
DWORD dwPriority,
DWORD dwFlags,
HANDLE * phMpq)
{
TMPQUserData * pUserData;
TFileStream * pStream = NULL; // Open file stream
TMPQArchive * ha = NULL; // Archive handle
TFileEntry * pFileEntry;
ULONGLONG FileSize = 0; // Size of the file
int nError = ERROR_SUCCESS;
// Verify the parameters
if(szMpqName == NULL || *szMpqName == 0 || phMpq == NULL)
nError = ERROR_INVALID_PARAMETER;
// One time initialization of MPQ cryptography
InitializeMpqCryptography();
dwPriority = dwPriority;
// Open the MPQ archive file
if(nError == ERROR_SUCCESS)
{
DWORD dwStreamFlags = (dwFlags & STREAM_FLAGS_MASK);
// If not forcing MPQ v 1.0, also use file bitmap
dwStreamFlags |= (dwFlags & MPQ_OPEN_FORCE_MPQ_V1) ? 0 : STREAM_FLAG_USE_BITMAP;
// Initialize the stream
pStream = FileStream_OpenFile(szMpqName, dwStreamFlags);
if(pStream == NULL)
nError = GetLastError();
}
// Check the file size. There must be at least 0x20 bytes
if(nError == ERROR_SUCCESS)
{
FileStream_GetSize(pStream, &FileSize);
if(FileSize < MPQ_HEADER_SIZE_V1)
nError = ERROR_BAD_FORMAT;
}
// Allocate the MPQhandle
if(nError == ERROR_SUCCESS)
{
if((ha = STORM_ALLOC(TMPQArchive, 1)) == NULL)
nError = ERROR_NOT_ENOUGH_MEMORY;
}
// Initialize handle structure and allocate structure for MPQ header
if(nError == ERROR_SUCCESS)
{
ULONGLONG SearchOffset = 0;
DWORD dwStreamFlags = 0;
DWORD dwHeaderSize;
DWORD dwHeaderID;
memset(ha, 0, sizeof(TMPQArchive));
ha->pfnHashString = HashString;
ha->pStream = pStream;
pStream = NULL;
// Set the archive read only if the stream is read-only
FileStream_GetFlags(ha->pStream, &dwStreamFlags);
ha->dwFlags |= (dwStreamFlags & STREAM_FLAG_READ_ONLY) ? MPQ_FLAG_READ_ONLY : 0;
// Also remember if we shall check sector CRCs when reading file
if(dwFlags & MPQ_OPEN_CHECK_SECTOR_CRC)
ha->dwFlags |= MPQ_FLAG_CHECK_SECTOR_CRC;
// Find the offset of MPQ header within the file
while(SearchOffset < FileSize)
{
DWORD dwBytesAvailable = MPQ_HEADER_SIZE_V4;
// Cut the bytes available, if needed
if((FileSize - SearchOffset) < MPQ_HEADER_SIZE_V4)
dwBytesAvailable = (DWORD)(FileSize - SearchOffset);
// Read the eventual MPQ header
if(!FileStream_Read(ha->pStream, &SearchOffset, ha->HeaderData, dwBytesAvailable))
{
nError = GetLastError();
break;
}
// There are AVI files from Warcraft III with 'MPQ' extension.
if(SearchOffset == 0 && IsAviFile(ha->HeaderData))
{
nError = ERROR_AVI_FILE;
break;
}
// If there is the MPQ user data signature, process it
dwHeaderID = BSWAP_INT32_UNSIGNED(ha->HeaderData[0]);
if(dwHeaderID == ID_MPQ_USERDATA && ha->pUserData == NULL && (dwFlags & MPQ_OPEN_FORCE_MPQ_V1) == 0)
{
// Verify if this looks like a valid user data
pUserData = IsValidMpqUserData(SearchOffset, FileSize, ha->HeaderData);
if(pUserData != NULL)
{
// Fill the user data header
ha->UserDataPos = SearchOffset;
ha->pUserData = &ha->UserData;
memcpy(ha->pUserData, pUserData, sizeof(TMPQUserData));
// Continue searching from that position
SearchOffset += ha->pUserData->dwHeaderOffs;
continue;
}
}
// There must be MPQ header signature. Note that STORM.dll from Warcraft III actually
// tests the MPQ header size. It must be at least 0x20 bytes in order to load it
// Abused by Spazzler Map protector. Note that the size check is not present
// in Storm.dll v 1.00, so Diablo I code would load the MPQ anyway.
dwHeaderSize = BSWAP_INT32_UNSIGNED(ha->HeaderData[1]);
if(dwHeaderID == ID_MPQ && dwHeaderSize >= MPQ_HEADER_SIZE_V1)
{
// Now convert the header to version 4
nError = ConvertMpqHeaderToFormat4(ha, SearchOffset, FileSize, dwFlags);
break;
}
// Check for MPK archives (Longwu Online - MPQ fork)
if(dwHeaderID == ID_MPK)
{
// Now convert the MPK header to MPQ Header version 4
nError = ConvertMpkHeaderToFormat4(ha, FileSize, dwFlags);
break;
}
// If searching for the MPQ header is disabled, return an error
if(dwFlags & MPQ_OPEN_NO_HEADER_SEARCH)
{
nError = ERROR_NOT_SUPPORTED;
break;
}
// Move to the next possible offset
SearchOffset += 0x200;
}
// Did we identify one of the supported headers?
if(nError == ERROR_SUCCESS)
{
// Set the user data position to the MPQ header, if none
if(ha->pUserData == NULL)
ha->UserDataPos = SearchOffset;
// Set the position of the MPQ header
ha->pHeader = (TMPQHeader *)ha->HeaderData;
ha->MpqPos = SearchOffset;
// Sector size must be nonzero.
if(SearchOffset >= FileSize || ha->pHeader->wSectorSize == 0)
nError = ERROR_BAD_FORMAT;
}
}
// Fix table positions according to format
if(nError == ERROR_SUCCESS)
{
// Dump the header
// DumpMpqHeader(ha->pHeader);
// W3x Map Protectors use the fact that War3's Storm.dll ignores the MPQ user data,
// and ignores the MPQ format version as well. The trick is to
// fake MPQ format 2, with an improper hi-word position of hash table and block table
// We can overcome such protectors by forcing opening the archive as MPQ v 1.0
if(dwFlags & MPQ_OPEN_FORCE_MPQ_V1)
{
ha->pHeader->wFormatVersion = MPQ_FORMAT_VERSION_1;
ha->pHeader->dwHeaderSize = MPQ_HEADER_SIZE_V1;
ha->dwFlags |= MPQ_FLAG_READ_ONLY;
ha->pUserData = NULL;
}
// Both MPQ_OPEN_NO_LISTFILE or MPQ_OPEN_NO_ATTRIBUTES trigger read only mode
if(dwFlags & (MPQ_OPEN_NO_LISTFILE | MPQ_OPEN_NO_ATTRIBUTES))
ha->dwFlags |= MPQ_FLAG_READ_ONLY;
// Set the size of file sector
ha->dwSectorSize = (0x200 << ha->pHeader->wSectorSize);
// Verify if any of the tables doesn't start beyond the end of the file
nError = VerifyMpqTablePositions(ha, FileSize);
}
// Read the hash table. Ignore the result, as hash table is no longer required
// Read HET table. Ignore the result, as HET table is no longer required
if(nError == ERROR_SUCCESS)
{
nError = LoadAnyHashTable(ha);
}
// Now, build the file table. It will be built by combining
// the block table, BET table, hi-block table, (attributes) and (listfile).
if(nError == ERROR_SUCCESS)
{
nError = BuildFileTable(ha);
}
// Verify the file table, if no kind of malformation was detected
if(nError == ERROR_SUCCESS && (ha->dwFlags & MPQ_FLAG_MALFORMED) == 0)
{
TFileEntry * pFileTableEnd = ha->pFileTable + ha->dwFileTableSize;
ULONGLONG RawFilePos;
// Parse all file entries
for(pFileEntry = ha->pFileTable; pFileEntry < pFileTableEnd; pFileEntry++)
{
// If that file entry is valid, check the file position
if(pFileEntry->dwFlags & MPQ_FILE_EXISTS)
{
// Get the 64-bit file position,
// relative to the begin of the file
RawFilePos = ha->MpqPos + pFileEntry->ByteOffset;
// Begin of the file must be within range
if(RawFilePos > FileSize)
{
nError = ERROR_FILE_CORRUPT;
break;
}
// End of the file must be within range
RawFilePos += pFileEntry->dwCmpSize;
if(RawFilePos > FileSize)
{
nError = ERROR_FILE_CORRUPT;
break;
}
}
}
}
// Load the internal listfile and include it to the file table
if(nError == ERROR_SUCCESS && (dwFlags & MPQ_OPEN_NO_LISTFILE) == 0)
{
// Save the flags for (listfile)
pFileEntry = GetFileEntryLocale(ha, LISTFILE_NAME, LANG_NEUTRAL);
if(pFileEntry != NULL)
{
// Ignore result of the operation. (listfile) is optional.
SFileAddListFile((HANDLE)ha, NULL);
ha->dwFileFlags1 = pFileEntry->dwFlags;
}
}
// Load the "(attributes)" file and merge it to the file table
if(nError == ERROR_SUCCESS && (dwFlags & MPQ_OPEN_NO_ATTRIBUTES) == 0)
{
// Save the flags for (attributes)
pFileEntry = GetFileEntryLocale(ha, ATTRIBUTES_NAME, LANG_NEUTRAL);
if(pFileEntry != NULL)
{
// Ignore result of the operation. (attributes) is optional.
SAttrLoadAttributes(ha);
ha->dwFileFlags2 = pFileEntry->dwFlags;
}
}
// Cleanup and exit
if(nError != ERROR_SUCCESS)
{
FileStream_Close(pStream);
FreeMPQArchive(ha);
SetLastError(nError);
ha = NULL;
}
*phMpq = ha;
return (nError == ERROR_SUCCESS);
}
