static int ReadMpqFileLocalFile(TMPQFile * hf, void * pvBuffer, DWORD dwFilePos, DWORD dwToRead, LPDWORD pdwBytesRead)
{
ULONGLONG FilePosition1 = dwFilePos;
ULONGLONG FilePosition2;
DWORD dwBytesRead = 0;
int nError = ERROR_SUCCESS;
assert(hf->pStream != NULL);
// Because stream I/O functions are designed to read
// "all or nothing", we compare file position before and after,
// and if they differ, we assume that number of bytes read
// is the difference between them
if(!FileStream_Read(hf->pStream, &FilePosition1, pvBuffer, dwToRead))
{
// If not all bytes have been read, then return the number of bytes read
if((nError = GetLastError()) == ERROR_HANDLE_EOF)
{
FileStream_GetPos(hf->pStream, &FilePosition2);
dwBytesRead = (DWORD)(FilePosition2 - FilePosition1);
}
}
else
{
dwBytesRead = dwToRead;
}
*pdwBytesRead = dwBytesRead;
return nError;
}
DWORD WINAPI SFileSetFilePointer(HANDLE hFile, LONG lFilePos, LONG * plFilePosHigh, DWORD dwMoveMethod)
{
TMPQFile * hf = (TMPQFile *)hFile;
ULONGLONG FilePosition;
ULONGLONG MoveOffset;
ULONGLONG FileSize;
DWORD dwFilePosHi;
// If the hFile is not a valid file handle, return an error.
if(!IsValidFileHandle(hf))
{
SetLastError(ERROR_INVALID_HANDLE);
return SFILE_INVALID_POS;
}
// Get the relative point where to move from
switch(dwMoveMethod)
{
case FILE_BEGIN:
FilePosition = 0;
break;
case FILE_CURRENT:
if(hf->pStream != NULL)
{
FileStream_GetPos(hf->pStream, FilePosition);
}
else
{
FilePosition = hf->dwFilePos;
}
break;
case FILE_END:
if(hf->pStream != NULL)
{
FileStream_GetSize(hf->pStream, FilePosition);
}
else
{
FilePosition = hf->dwDataSize;
}
break;
default:
SetLastError(ERROR_INVALID_PARAMETER);
return SFILE_INVALID_POS;
}
// Get the current file size
if(hf->pStream != NULL)
{
FileStream_GetSize(hf->pStream, FileSize);
}
else
{
FileSize = hf->dwDataSize;
}
// Now get the move offset. Note that both values form
// a signed 64-bit value (a file pointer can be moved backwards)
if(plFilePosHigh != NULL)
dwFilePosHi = *plFilePosHigh;
else
dwFilePosHi = (lFilePos & 0x80000000) ? 0xFFFFFFFF : 0;
MoveOffset = MAKE_OFFSET64(dwFilePosHi, lFilePos);
// Now calculate the new file pointer
// Do not allow the file pointer to go before the begin of the file
FilePosition += MoveOffset;
if(FilePosition < 0)
FilePosition = 0;
// Now apply the file pointer to the file
if(hf->pStream != NULL)
{
// Apply the new file position
if(!FileStream_Read(hf->pStream, &FilePosition, NULL, 0))
return SFILE_INVALID_POS;
// Return the new file position
if(plFilePosHigh != NULL)
*plFilePosHigh = (LONG)(FilePosition >> 32);
return (DWORD)FilePosition;
}
else
{
// Files in MPQ can't be bigger than 4 GB.
// We don't allow to go past 4 GB
if(FilePosition >> 32)
bool WINAPI SFileReadFile(HANDLE hFile, void * pvBuffer, DWORD dwToRead, LPDWORD pdwRead, LPOVERLAPPED lpOverlapped)
{
TMPQFile * hf = (TMPQFile *)hFile;
DWORD dwBytesRead = 0; // Number of bytes read
int nError = ERROR_SUCCESS;
// Keep compilers happy
lpOverlapped = lpOverlapped;
// Check valid parameters
if(!IsValidFileHandle(hf))
{
SetLastError(ERROR_INVALID_HANDLE);
return false;
}
if(pvBuffer == NULL)
{
SetLastError(ERROR_INVALID_PARAMETER);
return false;
}
// If the file is local file, read the data directly from the stream
if(hf->pStream != NULL)
{
ULONGLONG FilePosition1;
ULONGLONG FilePosition2;
// Because stream I/O functions are designed to read
// "all or nothing", we compare file position before and after,
// and if they differ, we assume that number of bytes read
// is the difference between them
FileStream_GetPos(hf->pStream, FilePosition1);
if(!FileStream_Read(hf->pStream, NULL, pvBuffer, dwToRead))
{
// If not all bytes have been read, then return the number
// of bytes read
if((nError = GetLastError()) == ERROR_HANDLE_EOF)
{
FileStream_GetPos(hf->pStream, FilePosition2);
dwBytesRead = (DWORD)(FilePosition2 - FilePosition1);
}
else
{
nError = GetLastError();
}
}
else
{
dwBytesRead = dwToRead;
}
}
else
{
// If the file is a patch file, we have to read it special way
if(hf->hfPatchFile != NULL && (hf->pFileEntry->dwFlags & MPQ_FILE_PATCH_FILE) == 0)
{
nError = ReadMpqFilePatchFile(hf, pvBuffer, dwToRead, &dwBytesRead);
}
// If the file is single unit file, redirect it to read file
else if(hf->pFileEntry->dwFlags & MPQ_FILE_SINGLE_UNIT)
{
nError = ReadMpqFileSingleUnit(hf, pvBuffer, dwToRead, &dwBytesRead);
}
// Otherwise read it as sector based MPQ file
else
{
nError = ReadMpqFile(hf, pvBuffer, dwToRead, &dwBytesRead);
}
}
// Give the caller the number of bytes read
if(pdwRead != NULL)
*pdwRead = dwBytesRead;
// If the read operation succeeded, but not full number of bytes was read,
// set the last error to ERROR_HANDLE_EOF
if(nError == ERROR_SUCCESS && (dwBytesRead < dwToRead))
nError = ERROR_HANDLE_EOF;
// If something failed, set the last error value
if(nError != ERROR_SUCCESS)
SetLastError(nError);
return (nError == ERROR_SUCCESS);
}
// Copies all file sectors into another archive.
static int CopyMpqFileSectors(
TMPQArchive * ha,
TMPQFile * hf,
TFileStream * pNewStream)
{
TFileEntry * pFileEntry = hf->pFileEntry;
ULONGLONG RawFilePos; // Used for calculating sector offset in the old MPQ archive
ULONGLONG MpqFilePos; // MPQ file position in the new archive
DWORD dwBytesToCopy = pFileEntry->dwCmpSize;
DWORD dwFileKey1 = 0; // File key used for decryption
DWORD dwFileKey2 = 0; // File key used for encryption
DWORD dwCmpSize = 0; // Compressed file size
int nError = ERROR_SUCCESS;
// Remember the position in the destination file
FileStream_GetPos(pNewStream, MpqFilePos);
MpqFilePos -= ha->MpqPos;
// Resolve decryption keys. Note that the file key given
// in the TMPQFile structure also includes the key adjustment
if (nError == ERROR_SUCCESS && (pFileEntry->dwFlags & MPQ_FILE_ENCRYPTED))
{
dwFileKey2 = dwFileKey1 = hf->dwFileKey;
if (pFileEntry->dwFlags & MPQ_FILE_FIX_KEY)
{
dwFileKey2 = (dwFileKey1 ^ pFileEntry->dwFileSize) - (DWORD)pFileEntry->ByteOffset;
dwFileKey2 = (dwFileKey2 + (DWORD)MpqFilePos) ^ pFileEntry->dwFileSize;
}
}
// If we have to save patch header, do it
if (nError == ERROR_SUCCESS && hf->PatchInfo != NULL)
{
BSWAP_ARRAY32_UNSIGNED(hf->PatchInfo, sizeof(DWORD) * 3);
if (!FileStream_Write(pNewStream, NULL, hf->PatchInfo, hf->PatchInfo->dwLength))
nError = GetLastError();
// Note: In wow-update-12694.MPQ, the dwCmpSize doesn't
// include the patch header on some files.
dwCmpSize += hf->PatchInfo->dwLength;
}
// If we have to save sector offset table, do it.
if (nError == ERROR_SUCCESS && hf->SectorOffsets != NULL)
{
LPDWORD SectorOffsetsCopy = ALLOCMEM(DWORD, hf->dwSectorCount);
DWORD dwSectorPosLen = hf->dwSectorCount * sizeof(DWORD);
assert((pFileEntry->dwFlags & MPQ_FILE_SINGLE_UNIT) == 0);
assert(pFileEntry->dwFlags & MPQ_FILE_COMPRESSED);
if (SectorOffsetsCopy == NULL)
nError = ERROR_NOT_ENOUGH_MEMORY;
// Encrypt the secondary sector offset table and write it to the target file
if (nError == ERROR_SUCCESS)
{
memcpy(SectorOffsetsCopy, hf->SectorOffsets, dwSectorPosLen);
if (pFileEntry->dwFlags & MPQ_FILE_ENCRYPTED)
EncryptMpqBlock(SectorOffsetsCopy, dwSectorPosLen, dwFileKey2 - 1);
BSWAP_ARRAY32_UNSIGNED(SectorOffsetsCopy, dwSectorPosLen);
if (!FileStream_Write(pNewStream, NULL, SectorOffsetsCopy, dwSectorPosLen))
nError = GetLastError();
dwCmpSize += dwSectorPosLen;
}
// Update compact progress
if (CompactCB != NULL)
{
CompactBytesProcessed += dwSectorPosLen;
CompactCB(pvUserData, CCB_COMPACTING_FILES, CompactBytesProcessed, CompactTotalBytes);
}
FREEMEM(SectorOffsetsCopy);
}
// Now we have to copy all file sectors. We do it without
// recompression, because recompression is not necessary in this case
if (nError == ERROR_SUCCESS)
{
for(DWORD dwSector = 0; dwSector < hf->dwDataSectors; dwSector++)
{
DWORD dwRawDataInSector = hf->dwSectorSize;
DWORD dwRawByteOffset = dwSector * hf->dwSectorSize;
// Last sector: If there is not enough bytes remaining in the file, cut the raw size
if (dwRawDataInSector > dwBytesToCopy)
dwRawDataInSector = dwBytesToCopy;
// Fix the raw data length if the file is compressed
if (hf->SectorOffsets != NULL)
{
dwRawDataInSector = hf->SectorOffsets[dwSector+1] - hf->SectorOffsets[dwSector];
dwRawByteOffset = hf->SectorOffsets[dwSector];
}
// Calculate the raw file offset of the file sector
CalculateRawSectorOffset(RawFilePos, hf, dwRawByteOffset);
// Read the file sector
if (!FileStream_Read(ha->pStream, &RawFilePos, hf->pbFileSector, dwRawDataInSector))
{
nError = GetLastError();
break;
}
// If necessary, re-encrypt the sector
// Note: Recompression is not necessary here. Unlike encryption,
// the compression does not depend on the position of the file in MPQ.
if ((pFileEntry->dwFlags & MPQ_FILE_ENCRYPTED) && dwFileKey1 != dwFileKey2)
{
BSWAP_ARRAY32_UNSIGNED(hf->pbFileSector, dwRawDataInSector);
DecryptMpqBlock(hf->pbFileSector, dwRawDataInSector, dwFileKey1 + dwSector);
EncryptMpqBlock(hf->pbFileSector, dwRawDataInSector, dwFileKey2 + dwSector);
BSWAP_ARRAY32_UNSIGNED(hf->pbFileSector, dwRawDataInSector);
}
// Now write the sector back to the file
if (!FileStream_Write(pNewStream, NULL, hf->pbFileSector, dwRawDataInSector))
{
nError = GetLastError();
break;
}
// Update compact progress
if (CompactCB != NULL)
{
CompactBytesProcessed += dwRawDataInSector;
CompactCB(pvUserData, CCB_COMPACTING_FILES, CompactBytesProcessed, CompactTotalBytes);
}
// Adjust byte counts
dwBytesToCopy -= hf->dwSectorSize;
dwCmpSize += dwRawDataInSector;
}
}
// Copy the sector CRCs, if any
// Sector CRCs are always compressed (not imploded) and unencrypted
if (nError == ERROR_SUCCESS && hf->SectorOffsets != NULL && hf->SectorChksums != NULL)
{
DWORD dwCrcLength;
dwCrcLength = hf->SectorOffsets[hf->dwSectorCount - 1] - hf->SectorOffsets[hf->dwSectorCount - 2];
if (dwCrcLength != 0)
{
if (!FileStream_Read(ha->pStream, NULL, hf->SectorChksums, dwCrcLength))
nError = GetLastError();
if (!FileStream_Write(pNewStream, NULL, hf->SectorChksums, dwCrcLength))
nError = GetLastError();
// Update compact progress
if (CompactCB != NULL)
{
CompactBytesProcessed += dwCrcLength;
CompactCB(pvUserData, CCB_COMPACTING_FILES, CompactBytesProcessed, CompactTotalBytes);
}
// Size of the CRC block is also included in the compressed file size
dwCmpSize += dwCrcLength;
}
}
// Update file position in the block table
if (nError == ERROR_SUCCESS)
{
// At this point, number of bytes written should be exactly
// the same like the compressed file size. If it isn't,
// there's something wrong (an unknown archive version, MPQ protection, ...)
//
// Note: Diablo savegames have very weird layout, and the file "hero"
// seems to have improper compressed size. Instead of real compressed size,
// the "dwCmpSize" member of the block table entry contains
// uncompressed size of file data + size of the sector table.
// If we compact the archive, Diablo will refuse to load the game
// Seems like some sort of protection to me.
if (dwCmpSize == pFileEntry->dwCmpSize)
{
// Update file pos in the block table
pFileEntry->ByteOffset = MpqFilePos;
}
else
{
nError = ERROR_FILE_CORRUPT;
assert(false);
}
}
return nError;
}
// Copies all file sectors into another archive.
static int CopyMpqFileSectors(
TMPQArchive * ha,
TMPQFile * hf,
TFileStream * pNewStream)
{
TFileEntry * pFileEntry = hf->pFileEntry;
ULONGLONG RawFilePos; // Used for calculating sector offset in the old MPQ archive
ULONGLONG MpqFilePos; // MPQ file position in the new archive
DWORD dwBytesToCopy = pFileEntry->dwCmpSize;
DWORD dwPatchSize = 0; // Size of patch header
DWORD dwFileKey1 = 0; // File key used for decryption
DWORD dwFileKey2 = 0; // File key used for encryption
DWORD dwCmpSize = 0; // Compressed file size, including patch header
int nError = ERROR_SUCCESS;
// Remember the position in the destination file
FileStream_GetPos(pNewStream, &MpqFilePos);
MpqFilePos -= ha->MpqPos;
// Resolve decryption keys. Note that the file key given
// in the TMPQFile structure also includes the key adjustment
if(nError == ERROR_SUCCESS && (pFileEntry->dwFlags & MPQ_FILE_ENCRYPTED))
{
dwFileKey2 = dwFileKey1 = hf->dwFileKey;
if(pFileEntry->dwFlags & MPQ_FILE_FIX_KEY)
{
dwFileKey2 = (dwFileKey1 ^ pFileEntry->dwFileSize) - (DWORD)pFileEntry->ByteOffset;
dwFileKey2 = (dwFileKey2 + (DWORD)MpqFilePos) ^ pFileEntry->dwFileSize;
}
}
// If we have to save patch header, do it
if(nError == ERROR_SUCCESS && hf->pPatchInfo != NULL)
{
BSWAP_ARRAY32_UNSIGNED(hf->pPatchInfo, sizeof(DWORD) * 3);
if(!FileStream_Write(pNewStream, NULL, hf->pPatchInfo, hf->pPatchInfo->dwLength))
nError = GetLastError();
// Save the size of the patch info
dwPatchSize = hf->pPatchInfo->dwLength;
}
// If we have to save sector offset table, do it.
if(nError == ERROR_SUCCESS && hf->SectorOffsets != NULL)
{
DWORD * SectorOffsetsCopy = STORM_ALLOC(DWORD, hf->SectorOffsets[0] / sizeof(DWORD));
DWORD dwSectorOffsLen = hf->SectorOffsets[0];
assert((pFileEntry->dwFlags & MPQ_FILE_SINGLE_UNIT) == 0);
assert(pFileEntry->dwFlags & MPQ_FILE_COMPRESS_MASK);
if(SectorOffsetsCopy == NULL)
nError = ERROR_NOT_ENOUGH_MEMORY;
// Encrypt the secondary sector offset table and write it to the target file
if(nError == ERROR_SUCCESS)
{
memcpy(SectorOffsetsCopy, hf->SectorOffsets, dwSectorOffsLen);
if(pFileEntry->dwFlags & MPQ_FILE_ENCRYPTED)
EncryptMpqBlock(SectorOffsetsCopy, dwSectorOffsLen, dwFileKey2 - 1);
BSWAP_ARRAY32_UNSIGNED(SectorOffsetsCopy, dwSectorOffsLen);
if(!FileStream_Write(pNewStream, NULL, SectorOffsetsCopy, dwSectorOffsLen))
nError = GetLastError();
dwBytesToCopy -= dwSectorOffsLen;
dwCmpSize += dwSectorOffsLen;
}
// Update compact progress
if(ha->pfnCompactCB != NULL)
{
ha->CompactBytesProcessed += dwSectorOffsLen;
ha->pfnCompactCB(ha->pvCompactUserData, CCB_COMPACTING_FILES, ha->CompactBytesProcessed, ha->CompactTotalBytes);
}
STORM_FREE(SectorOffsetsCopy);
}
// Now we have to copy all file sectors. We do it without
// recompression, because recompression is not necessary in this case
if(nError == ERROR_SUCCESS)
{
for(DWORD dwSector = 0; dwSector < hf->dwSectorCount; dwSector++)
{
DWORD dwRawDataInSector = hf->dwSectorSize;
DWORD dwRawByteOffset = dwSector * hf->dwSectorSize;
// Fix the raw data length if the file is compressed
if(hf->SectorOffsets != NULL)
{
dwRawDataInSector = hf->SectorOffsets[dwSector+1] - hf->SectorOffsets[dwSector];
dwRawByteOffset = hf->SectorOffsets[dwSector];
}
// Last sector: If there is not enough bytes remaining in the file, cut the raw size
if(dwRawDataInSector > dwBytesToCopy)
dwRawDataInSector = dwBytesToCopy;
// Calculate the raw file offset of the file sector
CalculateRawSectorOffset(RawFilePos, hf, dwRawByteOffset);
// Read the file sector
if(!FileStream_Read(ha->pStream, &RawFilePos, hf->pbFileSector, dwRawDataInSector))
{
nError = GetLastError();
break;
}
// If necessary, re-encrypt the sector
// Note: Recompression is not necessary here. Unlike encryption,
// the compression does not depend on the position of the file in MPQ.
if((pFileEntry->dwFlags & MPQ_FILE_ENCRYPTED) && dwFileKey1 != dwFileKey2)
{
BSWAP_ARRAY32_UNSIGNED(hf->pbFileSector, dwRawDataInSector);
DecryptMpqBlock(hf->pbFileSector, dwRawDataInSector, dwFileKey1 + dwSector);
EncryptMpqBlock(hf->pbFileSector, dwRawDataInSector, dwFileKey2 + dwSector);
BSWAP_ARRAY32_UNSIGNED(hf->pbFileSector, dwRawDataInSector);
}
// Now write the sector back to the file
if(!FileStream_Write(pNewStream, NULL, hf->pbFileSector, dwRawDataInSector))
{
nError = GetLastError();
break;
}
// Update compact progress
if(ha->pfnCompactCB != NULL)
{
ha->CompactBytesProcessed += dwRawDataInSector;
ha->pfnCompactCB(ha->pvCompactUserData, CCB_COMPACTING_FILES, ha->CompactBytesProcessed, ha->CompactTotalBytes);
}
// Adjust byte counts
dwBytesToCopy -= dwRawDataInSector;
dwCmpSize += dwRawDataInSector;
}
}
// Copy the sector CRCs, if any
// Sector CRCs are always compressed (not imploded) and unencrypted
if(nError == ERROR_SUCCESS && hf->SectorOffsets != NULL && hf->SectorChksums != NULL)
{
DWORD dwCrcLength;
dwCrcLength = hf->SectorOffsets[hf->dwSectorCount + 1] - hf->SectorOffsets[hf->dwSectorCount];
if(dwCrcLength != 0)
{
if(!FileStream_Read(ha->pStream, NULL, hf->SectorChksums, dwCrcLength))
nError = GetLastError();
if(!FileStream_Write(pNewStream, NULL, hf->SectorChksums, dwCrcLength))
nError = GetLastError();
// Update compact progress
if(ha->pfnCompactCB != NULL)
{
ha->CompactBytesProcessed += dwCrcLength;
ha->pfnCompactCB(ha->pvCompactUserData, CCB_COMPACTING_FILES, ha->CompactBytesProcessed, ha->CompactTotalBytes);
}
// Size of the CRC block is also included in the compressed file size
dwBytesToCopy -= dwCrcLength;
dwCmpSize += dwCrcLength;
}
}
// There might be extra data beyond sector checksum table
// Sometimes, these data are even part of sector offset table
// Examples:
// 2012 - WoW\15354\locale-enGB.MPQ:DBFilesClient\SpellLevels.dbc
// 2012 - WoW\15354\locale-enGB.MPQ:Interface\AddOns\Blizzard_AuctionUI\Blizzard_AuctionUI.xml
if(nError == ERROR_SUCCESS && dwBytesToCopy != 0)
{
LPBYTE pbExtraData;
// Allocate space for the extra data
pbExtraData = STORM_ALLOC(BYTE, dwBytesToCopy);
if(pbExtraData != NULL)
{
if(!FileStream_Read(ha->pStream, NULL, pbExtraData, dwBytesToCopy))
nError = GetLastError();
if(!FileStream_Write(pNewStream, NULL, pbExtraData, dwBytesToCopy))
nError = GetLastError();
// Include these extra data in the compressed size
dwCmpSize += dwBytesToCopy;
STORM_FREE(pbExtraData);
}
else
nError = ERROR_NOT_ENOUGH_MEMORY;
}
// Write the MD5's of the raw file data, if needed
if(nError == ERROR_SUCCESS && ha->pHeader->dwRawChunkSize != 0)
{
nError = WriteMpqDataMD5(pNewStream,
ha->MpqPos + MpqFilePos,
pFileEntry->dwCmpSize,
ha->pHeader->dwRawChunkSize);
}
// Update file position in the block table
if(nError == ERROR_SUCCESS)
{
// At this point, number of bytes written should be exactly
// the same like the compressed file size. If it isn't,
// there's something wrong (an unknown archive version, MPQ malformation, ...)
//
// Note: Diablo savegames have very weird layout, and the file "hero"
// seems to have improper compressed size. Instead of real compressed size,
// the "dwCmpSize" member of the block table entry contains
// uncompressed size of file data + size of the sector table.
// If we compact the archive, Diablo will refuse to load the game
//
// Note: Some patch files in WOW patches don't count the patch header
// into compressed size
//
if(dwCmpSize <= pFileEntry->dwCmpSize && pFileEntry->dwCmpSize <= dwCmpSize + dwPatchSize)
{
// Note: DO NOT update the compressed size in the file entry, no matter how bad it is.
pFileEntry->ByteOffset = MpqFilePos;
}
else
{
nError = ERROR_FILE_CORRUPT;
assert(false);
}
}
return nError;
}
static int CopyMpqFiles(TMPQArchive * ha, LPDWORD pFileKeys, TFileStream * pNewStream)
{
TFileEntry * pFileTableEnd = ha->pFileTable + ha->dwFileTableSize;
TFileEntry * pFileEntry;
TMPQFile * hf = NULL;
ULONGLONG MpqFilePos;
int nError = ERROR_SUCCESS;
// Walk through all files and write them to the destination MPQ archive
for(pFileEntry = ha->pFileTable; pFileEntry < pFileTableEnd; pFileEntry++)
{
// Copy all the file sectors
// Only do that when the file has nonzero size
if((pFileEntry->dwFlags & MPQ_FILE_EXISTS))
{
// Query the position where the destination file will be
FileStream_GetPos(pNewStream, &MpqFilePos);
MpqFilePos = MpqFilePos - ha->MpqPos;
// Perform file copy ONLY if the file has nonzero size
if(pFileEntry->dwFileSize != 0)
{
// Allocate structure for the MPQ file
hf = CreateFileHandle(ha, pFileEntry);
if(hf == NULL)
return ERROR_NOT_ENOUGH_MEMORY;
// Set the file decryption key
hf->dwFileKey = pFileKeys[pFileEntry - ha->pFileTable];
// If the file is a patch file, load the patch header
if(pFileEntry->dwFlags & MPQ_FILE_PATCH_FILE)
{
nError = AllocatePatchInfo(hf, true);
if(nError != ERROR_SUCCESS)
break;
}
// Allocate buffers for file sector and sector offset table
nError = AllocateSectorBuffer(hf);
if(nError != ERROR_SUCCESS)
break;
// Also allocate sector offset table and sector checksum table
nError = AllocateSectorOffsets(hf, true);
if(nError != ERROR_SUCCESS)
break;
// Also load sector checksums, if any
if(pFileEntry->dwFlags & MPQ_FILE_SECTOR_CRC)
{
nError = AllocateSectorChecksums(hf, false);
if(nError != ERROR_SUCCESS)
break;
}
// Copy all file sectors
nError = CopyMpqFileSectors(ha, hf, pNewStream, MpqFilePos);
if(nError != ERROR_SUCCESS)
break;
// Free buffers. This also sets "hf" to NULL.
FreeFileHandle(hf);
}
// Note: DO NOT update the compressed size in the file entry, no matter how bad it is.
pFileEntry->ByteOffset = MpqFilePos;
}
}
// Cleanup and exit
if(hf != NULL)
FreeFileHandle(hf);
return nError;
}
