diff options
Diffstat (limited to 'dep/StormLib/src/SFileCompactArchive.cpp')
| -rw-r--r-- | dep/StormLib/src/SFileCompactArchive.cpp | 765 |
1 files changed, 0 insertions, 765 deletions
diff --git a/dep/StormLib/src/SFileCompactArchive.cpp b/dep/StormLib/src/SFileCompactArchive.cpp deleted file mode 100644 index 319108b08f4..00000000000 --- a/dep/StormLib/src/SFileCompactArchive.cpp +++ /dev/null @@ -1,765 +0,0 @@ -/*****************************************************************************/ -/* SFileCompactArchive.cpp Copyright (c) Ladislav Zezula 2003 */ -/*---------------------------------------------------------------------------*/ -/* Archive compacting function */ -/*---------------------------------------------------------------------------*/ -/* Date Ver Who Comment */ -/* -------- ---- --- ------- */ -/* 14.04.03 1.00 Lad Splitted from SFileCreateArchiveEx.cpp */ -/* 19.11.03 1.01 Dan Big endian handling */ -/*****************************************************************************/ - -#define __STORMLIB_SELF__ -#include "StormLib.h" -#include "StormCommon.h" - -/*****************************************************************************/ -/* Local variables */ -/*****************************************************************************/ - -static SFILE_COMPACT_CALLBACK CompactCB = NULL; -static ULONGLONG CompactBytesProcessed = 0; -static ULONGLONG CompactTotalBytes = 0; -static void * pvUserData = NULL; - -/*****************************************************************************/ -/* Local functions */ -/*****************************************************************************/ - -static int CheckIfAllFilesKnown(TMPQArchive * ha, const char * szListFile, LPDWORD pFileKeys) -{ - TFileEntry * pFileTableEnd; - TFileEntry * pFileEntry; - DWORD dwBlockIndex = 0; - int nError = ERROR_SUCCESS; - - // Add the listfile to the MPQ - if(nError == ERROR_SUCCESS && szListFile != NULL) - { - // Notify the user - if(CompactCB != NULL) - CompactCB(pvUserData, CCB_CHECKING_FILES, CompactBytesProcessed, CompactTotalBytes); - - nError = SFileAddListFile((HANDLE)ha, szListFile); - } - - // Verify the file table - if(nError == ERROR_SUCCESS) - { - pFileTableEnd = ha->pFileTable + ha->dwFileTableSize; - for(pFileEntry = ha->pFileTable; pFileEntry < pFileTableEnd; pFileEntry++, dwBlockIndex++) - { - if(pFileEntry->dwFlags & MPQ_FILE_EXISTS) - { - if(pFileEntry->szFileName != NULL && !IsPseudoFileName(pFileEntry->szFileName, NULL)) - { - DWORD dwFileKey = 0; - - // Resolve the file key. Use plain file name for it - if(pFileEntry->dwFlags & MPQ_FILE_ENCRYPTED) - { - dwFileKey = DecryptFileKey(pFileEntry->szFileName, - pFileEntry->ByteOffset, - pFileEntry->dwFileSize, - pFileEntry->dwFlags); - } - - // Give the key to the caller - if(pFileKeys != NULL) - pFileKeys[dwBlockIndex] = dwFileKey; - } - else - { - nError = ERROR_CAN_NOT_COMPLETE; - break; - } - } - } - } - - return nError; -} - -static int CopyNonMpqData( - TFileStream * pSrcStream, - TFileStream * pTrgStream, - ULONGLONG & ByteOffset, - ULONGLONG & ByteCount) -{ - ULONGLONG DataSize = ByteCount; - DWORD dwToRead; - char DataBuffer[0x1000]; - int nError = ERROR_SUCCESS; - - // Copy the data - while(DataSize > 0) - { - // Get the proper size of data - dwToRead = sizeof(DataBuffer); - if(DataSize < dwToRead) - dwToRead = (DWORD)DataSize; - - // Read from the source stream - if(!FileStream_Read(pSrcStream, &ByteOffset, DataBuffer, dwToRead)) - { - nError = GetLastError(); - break; - } - - // Write to the target stream - if(!FileStream_Write(pTrgStream, NULL, DataBuffer, dwToRead)) - { - nError = GetLastError(); - break; - } - - // Update the progress - if(CompactCB != NULL) - { - CompactBytesProcessed += dwToRead; - CompactCB(pvUserData, CCB_COPYING_NON_MPQ_DATA, CompactBytesProcessed, CompactTotalBytes); - } - - // Decrement the number of data to be copied - ByteOffset += dwToRead; - DataSize -= dwToRead; - } - - return 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 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 = (DWORD *)STORM_ALLOC(BYTE, hf->SectorOffsets[0]); - DWORD dwSectorOffsLen = hf->SectorOffsets[0]; - - 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, 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(CompactCB != NULL) - { - CompactBytesProcessed += dwSectorOffsLen; - CompactCB(pvUserData, CCB_COMPACTING_FILES, CompactBytesProcessed, 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(CompactCB != NULL) - { - CompactBytesProcessed += dwRawDataInSector; - CompactCB(pvUserData, CCB_COMPACTING_FILES, CompactBytesProcessed, 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(CompactCB != NULL) - { - CompactBytesProcessed += dwCrcLength; - CompactCB(pvUserData, CCB_COMPACTING_FILES, CompactBytesProcessed, 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; - dwBytesToCopy = 0; - 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 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. - // - // 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; - 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) && pFileEntry->dwFileSize != 0) - { - // Allocate structure for the MPQ file - hf = CreateMpqFile(ha); - if(hf == NULL) - return ERROR_NOT_ENOUGH_MEMORY; - - // Store file entry - hf->pFileEntry = pFileEntry; - - // Set the raw file position - hf->MpqFilePos = pFileEntry->ByteOffset; - hf->RawFilePos = ha->MpqPos + hf->MpqFilePos; - - // Set the file decryption key - hf->dwFileKey = pFileKeys[pFileEntry - ha->pFileTable]; - hf->dwDataSize = pFileEntry->dwFileSize; - - // 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); - if(nError != ERROR_SUCCESS) - break; - - // Free buffers. This also sets "hf" to NULL. - FreeMPQFile(hf); - } - } - - // Cleanup and exit - if(hf != NULL) - FreeMPQFile(hf); - return nError; -} - - -/*****************************************************************************/ -/* Public functions */ -/*****************************************************************************/ - -bool WINAPI SFileSetCompactCallback(HANDLE /* hMpq */, SFILE_COMPACT_CALLBACK aCompactCB, void * pvData) -{ - CompactCB = aCompactCB; - pvUserData = pvData; - return true; -} - -//----------------------------------------------------------------------------- -// Archive compacting - -bool WINAPI SFileCompactArchive(HANDLE hMpq, const char * szListFile, bool /* bReserved */) -{ - TFileStream * pTempStream = NULL; - TMPQArchive * ha = (TMPQArchive *)hMpq; - ULONGLONG ByteOffset; - ULONGLONG ByteCount; - LPDWORD pFileKeys = NULL; - TCHAR szTempFile[MAX_PATH] = _T(""); - TCHAR * szTemp = NULL; - int nError = ERROR_SUCCESS; - - // Test the valid parameters - if(!IsValidMpqHandle(ha)) - nError = ERROR_INVALID_HANDLE; - if(ha->dwFlags & MPQ_FLAG_READ_ONLY) - nError = ERROR_ACCESS_DENIED; - - // If the MPQ is changed at this moment, we have to flush the archive - if(nError == ERROR_SUCCESS && (ha->dwFlags & MPQ_FLAG_CHANGED)) - { - SFileFlushArchive(hMpq); - } - - // Create the table with file keys - if(nError == ERROR_SUCCESS) - { - if((pFileKeys = STORM_ALLOC(DWORD, ha->dwFileTableSize)) != NULL) - memset(pFileKeys, 0, sizeof(DWORD) * ha->dwFileTableSize); - else - nError = ERROR_NOT_ENOUGH_MEMORY; - } - - // First of all, we have to check of we are able to decrypt all files. - // If not, sorry, but the archive cannot be compacted. - if(nError == ERROR_SUCCESS) - { - // Initialize the progress variables for compact callback - FileStream_GetSize(ha->pStream, CompactTotalBytes); - CompactBytesProcessed = 0; - nError = CheckIfAllFilesKnown(ha, szListFile, pFileKeys); - } - - // Get the temporary file name and create it - if(nError == ERROR_SUCCESS) - { - _tcscpy(szTempFile, FileStream_GetFileName(ha->pStream)); - if((szTemp = _tcsrchr(szTempFile, '.')) != NULL) - _tcscpy(szTemp + 1, _T("mp_")); - else - _tcscat(szTempFile, _T("_")); - - pTempStream = FileStream_CreateFile(szTempFile, STREAM_PROVIDER_LINEAR | BASE_PROVIDER_FILE); - if(pTempStream == NULL) - nError = GetLastError(); - } - - // Write the data before MPQ user data (if any) - if(nError == ERROR_SUCCESS && ha->UserDataPos != 0) - { - // Inform the application about the progress - if(CompactCB != NULL) - CompactCB(pvUserData, CCB_COPYING_NON_MPQ_DATA, CompactBytesProcessed, CompactTotalBytes); - - ByteOffset = 0; - ByteCount = ha->UserDataPos; - nError = CopyNonMpqData(ha->pStream, pTempStream, ByteOffset, ByteCount); - } - - // Write the MPQ user data (if any) - if(nError == ERROR_SUCCESS && ha->MpqPos > ha->UserDataPos) - { - // At this point, we assume that the user data size is equal - // to pUserData->dwHeaderOffs. - // If this assumption doesn't work, then we have an unknown version of MPQ - ByteOffset = ha->UserDataPos; - ByteCount = ha->MpqPos - ha->UserDataPos; - - assert(ha->pUserData != NULL); - assert(ha->pUserData->dwHeaderOffs == ByteCount); - nError = CopyNonMpqData(ha->pStream, pTempStream, ByteOffset, ByteCount); - } - - // Write the MPQ header - if(nError == ERROR_SUCCESS) - { - // Remember the header size before swapping - DWORD dwBytesToWrite = ha->pHeader->dwHeaderSize; - - BSWAP_TMPQHEADER(ha->pHeader); - if(!FileStream_Write(pTempStream, NULL, ha->pHeader, dwBytesToWrite)) - nError = GetLastError(); - BSWAP_TMPQHEADER(ha->pHeader); - - // Update the progress - CompactBytesProcessed += ha->pHeader->dwHeaderSize; - } - - // Now copy all files - if(nError == ERROR_SUCCESS) - { - nError = CopyMpqFiles(ha, pFileKeys, pTempStream); - ha->dwFlags |= MPQ_FLAG_CHANGED; - } - - // If succeeded, switch the streams - if(nError == ERROR_SUCCESS) - { - if(FileStream_Switch(ha->pStream, pTempStream)) - pTempStream = NULL; - else - nError = ERROR_CAN_NOT_COMPLETE; - } - - // If all succeeded, save the MPQ tables - if(nError == ERROR_SUCCESS) - { - // - // Note: We don't recalculate position of the MPQ tables at this point. - // SaveMPQTables does it automatically. - // - - nError = SaveMPQTables(ha); - if(nError == ERROR_SUCCESS && CompactCB != NULL) - { - CompactBytesProcessed += (ha->pHeader->dwHashTableSize * sizeof(TMPQHash)); - CompactBytesProcessed += (ha->pHeader->dwBlockTableSize * sizeof(TMPQBlock)); - CompactCB(pvUserData, CCB_CLOSING_ARCHIVE, CompactBytesProcessed, CompactTotalBytes); - } - } - - // Invalidate the compact callback - pvUserData = NULL; - CompactCB = NULL; - - // Cleanup and return - if(pTempStream != NULL) - FileStream_Close(pTempStream); - if(pFileKeys != NULL) - STORM_FREE(pFileKeys); - if(nError != ERROR_SUCCESS) - SetLastError(nError); - return (nError == ERROR_SUCCESS); -} - -//----------------------------------------------------------------------------- -// Changing hash table size - -DWORD WINAPI SFileGetMaxFileCount(HANDLE hMpq) -{ - TMPQArchive * ha = (TMPQArchive *)hMpq; - - return ha->dwMaxFileCount; -} - -bool WINAPI SFileSetMaxFileCount(HANDLE hMpq, DWORD dwMaxFileCount) -{ - TMPQHetTable * pOldHetTable = NULL; - TMPQArchive * ha = (TMPQArchive *)hMpq; - TFileEntry * pOldFileTableEnd = ha->pFileTable + ha->dwFileTableSize; - TFileEntry * pOldFileTable = NULL; - TFileEntry * pOldFileEntry; - TFileEntry * pFileEntry; - TMPQHash * pOldHashTable = NULL; - DWORD dwOldHashTableSize = 0; - DWORD dwOldFileTableSize = 0; - int nError = ERROR_SUCCESS; - - // Test the valid parameters - if(!IsValidMpqHandle(ha)) - nError = ERROR_INVALID_HANDLE; - if(ha->dwFlags & MPQ_FLAG_READ_ONLY) - nError = ERROR_ACCESS_DENIED; - - // The new limit must not be lower than the index of the last file entry in the table - if(nError == ERROR_SUCCESS && ha->dwFileTableSize > dwMaxFileCount) - nError = ERROR_DISK_FULL; - - // ALL file names must be known in order to be able - // to rebuild hash table size - if(nError == ERROR_SUCCESS) - { - nError = CheckIfAllFilesKnown(ha, NULL, NULL); - } - - // If the MPQ has a hash table, then we relocate the hash table - if(nError == ERROR_SUCCESS && ha->pHashTable != NULL) - { - // Save parameters for the current hash table - dwOldHashTableSize = ha->pHeader->dwHashTableSize; - pOldHashTable = ha->pHashTable; - - // Allocate new hash table - ha->pHeader->dwHashTableSize = GetHashTableSizeForFileCount(dwMaxFileCount); - ha->pHashTable = STORM_ALLOC(TMPQHash, ha->pHeader->dwHashTableSize); - if(ha->pHashTable != NULL) - memset(ha->pHashTable, 0xFF, ha->pHeader->dwHashTableSize * sizeof(TMPQHash)); - else - nError = ERROR_NOT_ENOUGH_MEMORY; - } - - // If the MPQ has HET table, allocate new one as well - if(nError == ERROR_SUCCESS && ha->pHetTable != NULL) - { - // Save the original HET table - pOldHetTable = ha->pHetTable; - - // Create new one - ha->pHetTable = CreateHetTable(dwMaxFileCount, 0x40, true); - if(ha->pHetTable == NULL) - nError = ERROR_NOT_ENOUGH_MEMORY; - } - - // Now reallocate the file table - if(nError == ERROR_SUCCESS) - { - // Save the current file table - dwOldFileTableSize = ha->dwFileTableSize; - pOldFileTable = ha->pFileTable; - - // Create new one - ha->pFileTable = STORM_ALLOC(TFileEntry, dwMaxFileCount); - if(ha->pFileTable != NULL) - memset(ha->pFileTable, 0, dwMaxFileCount * sizeof(TFileEntry)); - else - nError = ERROR_NOT_ENOUGH_MEMORY; - } - - // Now we have to build both classic hash table and HET table. - if(nError == ERROR_SUCCESS) - { - DWORD dwFileIndex = 0; - DWORD dwHashIndex = 0; - - // Create new hash and HET entry for each file - pFileEntry = ha->pFileTable; - for(pOldFileEntry = pOldFileTable; pOldFileEntry < pOldFileTableEnd; pOldFileEntry++) - { - if(pOldFileEntry->dwFlags & MPQ_FILE_EXISTS) - { - // Copy the old file entry to the new one - memcpy(pFileEntry, pOldFileEntry, sizeof(TFileEntry)); - assert(pFileEntry->szFileName != NULL); - - // Create new entry in the hash table - if(ha->pHashTable != NULL) - { - dwHashIndex = AllocateHashEntry(ha, pFileEntry); - if(dwHashIndex == HASH_ENTRY_FREE) - { - nError = ERROR_CAN_NOT_COMPLETE; - break; - } - } - - // Create new entry in the HET table, if needed - if(ha->pHetTable != NULL) - { - dwHashIndex = AllocateHetEntry(ha, pFileEntry); - if(dwHashIndex == HASH_ENTRY_FREE) - { - nError = ERROR_CAN_NOT_COMPLETE; - break; - } - } - - // Move to the next file entry in the new table - pFileEntry++; - dwFileIndex++; - } - } - } - - // Mark the archive as changed - // Note: We always have to rebuild the (attributes) file due to file table change - if(nError == ERROR_SUCCESS) - { - ha->dwMaxFileCount = dwMaxFileCount; - InvalidateInternalFiles(ha); - } - else - { - // Revert the hash table - if(ha->pHashTable != NULL && pOldHashTable != NULL) - { - STORM_FREE(ha->pHashTable); - ha->pHeader->dwHashTableSize = dwOldHashTableSize; - ha->pHashTable = pOldHashTable; - } - - // Revert the HET table - if(ha->pHetTable != NULL && pOldHetTable != NULL) - { - FreeHetTable(ha->pHetTable); - ha->pHetTable = pOldHetTable; - } - - // Revert the file table - if(pOldFileTable != NULL) - { - STORM_FREE(ha->pFileTable); - ha->pFileTable = pOldFileTable; - } - - SetLastError(nError); - } - - // Return the result - return (nError == ERROR_SUCCESS); -} |