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ShadowFlare [Wed, 16 Jan 2013 08:45:40 +0000 (01:45 -0700)]
MpqBlockTable.cpp
MpqHashTable.cpp
SFTypes.h
SFUtil.cpp
SFUtil.h
SFmpqInternal.h [new file with mode: 0644]
SFmpqapi.cpp
SFmpqapi.def
SFmpqapi.h
SFmpqapi.vcproj
linux/windows.h

index 650acc1..99238da 100644 (file)
@@ -2,12 +2,14 @@
 
 #include <windows.h>
 #include "SFmpqapi.h"
+#include "SFmpqInternal.h"
 #include "SFUtil.h"
 #include "MpqCrypt.h"
 
 BOOL WriteBlockTable(MPQARCHIVE *mpqOpenArc)
 {
        DWORD tsz;
+       BOOL bReturnVal = FALSE;
 
        if (mpqOpenArc->MpqHeader.dwBlockTableSize == 0) return TRUE;
        if (!mpqOpenArc->lpBlockTable) return FALSE;
@@ -16,16 +18,21 @@ BOOL WriteBlockTable(MPQARCHIVE *mpqOpenArc)
        if (buffer) {
                memcpy(buffer,mpqOpenArc->lpBlockTable,sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize);
                EncryptData((LPBYTE)buffer,sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize,dwBlockTableKey);
-               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->MpqHeader.dwBlockTableOffset,FILE_BEGIN);
-               WriteFile(mpqOpenArc->hFile,buffer,sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize,&tsz,0);
+               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->MpqHeader.dwBlockTableOffset, mpqOpenArc->MpqHeader_Ex.wBlockTableOffsetHigh), FILE_BEGIN);
+               bReturnVal = WriteFile(mpqOpenArc->hFile,buffer,sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize,&tsz,0);
                SFFree(buffer);
        }
        else {
                EncryptData((LPBYTE)mpqOpenArc->lpBlockTable,sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize,dwBlockTableKey);
-               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->MpqHeader.dwBlockTableOffset,FILE_BEGIN);
-               WriteFile(mpqOpenArc->hFile,mpqOpenArc->lpBlockTable,sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize,&tsz,0);
+               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->MpqHeader.dwBlockTableOffset, mpqOpenArc->MpqHeader_Ex.wBlockTableOffsetHigh), FILE_BEGIN);
+               bReturnVal = WriteFile(mpqOpenArc->hFile,mpqOpenArc->lpBlockTable,sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize,&tsz,0);
                DecryptData((LPBYTE)mpqOpenArc->lpBlockTable,sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize,dwBlockTableKey);
        }
 
-       return TRUE;
+       if (bReturnVal && mpqOpenArc->MpqHeader_Ex.qwExtendedBlockOffsetTable) {
+               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + mpqOpenArc->MpqHeader_Ex.qwExtendedBlockOffsetTable, FILE_BEGIN);
+               bReturnVal = WriteFile(mpqOpenArc->hFile, mpqOpenArc->lpFileOffsetsHigh, sizeof(UInt16) * mpqOpenArc->MpqHeader.dwBlockTableSize, &tsz, 0);
+       }
+
+       return bReturnVal;
 }
index 90072c1..4a5d0a4 100644 (file)
@@ -2,27 +2,29 @@
 
 #include <windows.h>
 #include "SFmpqapi.h"
+#include "SFmpqInternal.h"
 #include "SFUtil.h"
 #include "MpqCrypt.h"
 
 BOOL WriteHashTable(MPQARCHIVE *mpqOpenArc)
 {
        DWORD tsz;
+       BOOL bReturnVal = FALSE;
 
        char *buffer = (char *)SFAlloc(sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize);
        if (buffer) {
                memcpy(buffer,mpqOpenArc->lpHashTable,sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize);
                EncryptData((LPBYTE)buffer,sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize,dwHashTableKey);
-               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->MpqHeader.dwHashTableOffset,FILE_BEGIN);
-               WriteFile(mpqOpenArc->hFile,buffer,sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize,&tsz,0);
+               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->MpqHeader.dwHashTableOffset, mpqOpenArc->MpqHeader_Ex.wHashTableOffsetHigh), FILE_BEGIN);
+               bReturnVal = WriteFile(mpqOpenArc->hFile,buffer,sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize,&tsz,0);
                SFFree(buffer);
        }
        else {
                EncryptData((LPBYTE)mpqOpenArc->lpHashTable,sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize,dwHashTableKey);
-               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->MpqHeader.dwHashTableOffset,FILE_BEGIN);
-               WriteFile(mpqOpenArc->hFile,mpqOpenArc->lpHashTable,sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize,&tsz,0);
+               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->MpqHeader.dwHashTableOffset, mpqOpenArc->MpqHeader_Ex.wHashTableOffsetHigh), FILE_BEGIN);
+               bReturnVal = WriteFile(mpqOpenArc->hFile,mpqOpenArc->lpHashTable,sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize,&tsz,0);
                DecryptData((LPBYTE)mpqOpenArc->lpHashTable,sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize,dwHashTableKey);
        }
 
-       return TRUE;
+       return bReturnVal;
 }
index 5758b9a..07adb3c 100644 (file)
--- a/SFTypes.h
+++ b/SFTypes.h
@@ -56,5 +56,11 @@ union IntConv {
        UInt64 ui64;
 };
 
+#define SplitUInt64(L_Low, L_High, R) \
+       L_Low = (UInt32)(R); \
+       L_High = (UInt32)((R) >> 32);
+
+#define MakeUInt64(R_Low, R_High) ((UInt64)(R_Low) + ((UInt64)(R_High) << 32))
+
 #endif // #ifndef SFTYPES_INCLUDED
 
index c5af68e..e9fffcd 100644 (file)
@@ -36,7 +36,7 @@ void WINAPI SFFree(LPVOID lpvMemory)
        if (lpvMemory) free(lpvMemory);
 }
 
-Int64 SFGetFileSize(HANDLE hFile)
+UInt64 SFGetFileSize(HANDLE hFile)
 {
        IntConv FileSize;
 
@@ -46,19 +46,19 @@ Int64 SFGetFileSize(HANDLE hFile)
 
        if (FileSize.ui32[0] == INVALID_FILE_SIZE) {
                if (::GetLastError() != NO_ERROR)
-                       return -1;
+                       return (UInt64)-1;
        }
 
-       return FileSize.i64;
+       return FileSize.ui64;
 }
 
-Int64 SFSetFilePointer(HANDLE hFile, Int64 nDistance, UInt32 dwMoveMethod)
+UInt64 SFSetFilePointer(HANDLE hFile, Int64 nDistance, UInt32 dwMoveMethod)
 {
        IntConv FilePos;
 
        FilePos.i64 = nDistance;
 
-       FilePos.i32[0] = ::SetFilePointer(hFile, FilePos.i32[0], &FilePos.i32[1], dwMoveMethod);
+       FilePos.ui32[0] = ::SetFilePointer(hFile, FilePos.i32[0], &FilePos.i32[1], dwMoveMethod);
 
 #ifdef INVALID_SET_FILE_POINTER
        if (FilePos.ui32[0] == INVALID_SET_FILE_POINTER) {
@@ -66,10 +66,10 @@ Int64 SFSetFilePointer(HANDLE hFile, Int64 nDistance, UInt32 dwMoveMethod)
        if (FilePos.ui32[0] == INVALID_FILE_SIZE) {
 #endif
                if (::GetLastError() != NO_ERROR)
-                       return -1;
+                       return (UInt64)-1;
        }
 
-       return FilePos.i64;
+       return FilePos.ui64;
 }
 
 size_t strlnlen(const char *strline)
index 7325d46..f87e409 100644 (file)
--- a/SFUtil.h
+++ b/SFUtil.h
@@ -9,8 +9,8 @@
 LPVOID WINAPI SFAlloc(DWORD dwSize);
 void WINAPI SFFree(LPVOID lpvMemory);
 void WINAPI SFMemZero(LPVOID lpvDestination, DWORD dwLength);
-Int64 SFGetFileSize(HANDLE hFile);
-Int64 SFSetFilePointer(HANDLE hFile, Int64 nDistance, UInt32 dwMoveMethod);
+UInt64 SFGetFileSize(HANDLE hFile);
+UInt64 SFSetFilePointer(HANDLE hFile, Int64 nDistance, UInt32 dwMoveMethod);
 size_t strlnlen(const char *strline);
 char *nextline(const char *strline);
 
diff --git a/SFmpqInternal.h b/SFmpqInternal.h
new file mode 100644 (file)
index 0000000..6ae0e3c
--- /dev/null
@@ -0,0 +1,72 @@
+// License information for this code is in license.txt
+
+#ifndef SFMPQ_INTERNAL_INCLUDED
+#define SFMPQ_INTERNAL_INCLUDED
+
+#include <windows.h>
+#include "SFmpqapi.h"
+
+struct MPQARCHIVE;
+struct MPQFILE;
+
+//Archive handles are typecasted to this struct internally to access
+//this data.  This struct is based on Storm's internal struct for
+//archive handles.
+struct MPQARCHIVE {
+       // Arranged according to priority with lowest priority first
+       MPQARCHIVE * lpNextArc; //0// Pointer to the next MPQARCHIVE struct. Pointer to addresses of first and last archives if last archive
+       MPQARCHIVE * lpPrevArc; //4// Pointer to the previous MPQARCHIVE struct. 0xEAFC5E23 if first archive
+       char szFileName[260]; //8// Filename of the archive
+       HANDLE hFile; //10C// The archive's file handle
+       DWORD dwFlags1; //110// Some flags, bit 0 seems to be set when opening an archive from a hard drive if bit 1 in the flags for SFileOpenArchive is set, bit 1 (0 based) seems to be set when opening an archive from a CD
+       DWORD dwPriority; //114// Priority of the archive set when calling SFileOpenArchive
+       MPQFILE * lpLastReadFile; //118// Pointer to the last read file's MPQFILE struct. This is cleared when finished reading a block
+       DWORD dwUnk; //11C// Seems to always be 0
+       DWORD dwBlockSize; //120// Size of file blocks in bytes
+       BYTE * lpLastReadBlock; //124// Pointer to the read buffer for archive. This is cleared when finished reading a block
+       DWORD dwBufferSize; //128// Size of the read buffer for archive. This is cleared when finished reading a block
+       UINT64 qwMPQStart; //12C// The starting offset of the archive
+       UINT64 qwMPQEnd; //130// The ending offset of the archive
+       MPQHEADER * lpMPQHeader; //134// Pointer to the archive header
+       BLOCKTABLEENTRY * lpBlockTable; //138// Pointer to the start of the block table
+       HASHTABLEENTRY * lpHashTable; //13C// Pointer to the start of the hash table
+       UINT64 qwReadOffset; //140// Offset to the data for a file
+       DWORD dwRefCount; //144// Count of references to this open archive.  This is incremented for each file opened from the archive, and decremented for each file closed
+       // Extra struct members used by SFmpq
+       MPQHEADER MpqHeader;
+       DWORD dwFlags; //The only flags that should be changed are MOAU_MAINTAIN_LISTFILE and MOAU_MAINTAIN_ATTRIBUTES, changing any others can have unpredictable effects
+       LPSTR lpFileName;
+       DWORD dwExtraFlags;
+       MPQHEADER_EX MpqHeader_Ex;
+       DWORD dwHeaderSize;
+       WORD * lpFileOffsetsHigh;
+};
+
+//Handles to files in the archive are typecasted to this struct
+//internally to access this data.  This struct is based on
+//Storm's internal struct for file handles.
+struct MPQFILE {
+       MPQFILE * lpNextFile; //0// Pointer to the next MPQFILE struct. Pointer to addresses of first and last files if last file
+       MPQFILE * lpPrevFile; //4// Pointer to the previous MPQFILE struct. 0xEAFC5E13 if first file
+       char szFileName[260]; //8// Filename of the file
+       HANDLE hFile; //10C// Always INVALID_HANDLE_VALUE for files in MPQ archives. For files not in MPQ archives, this is the file handle for the file and the rest of this struct is filled with zeros except for dwRefCount
+       MPQARCHIVE * lpParentArc; //110// Pointer to the MPQARCHIVE struct of the archive in which the file is contained
+       BLOCKTABLEENTRY * lpBlockEntry; //114// Pointer to the file's block table entry
+       DWORD dwCryptKey; //118// Decryption key for the file
+       DWORD dwFilePointer; //11C// Position of file pointer in the file
+       DWORD dwUnk; //120// Seems to always be 0
+       DWORD dwBlockCount; //124// Number of blocks in file
+       DWORD * lpdwBlockOffsets; //128// Offsets to blocks in file. There are 1 more of these than the number of blocks. The values for this are set after the first read
+       DWORD dwReadStarted; //12C// Set to 1 after first read
+       BOOL bStreaming; //130// 1 when streaming a WAVE
+       BYTE * lpLastReadBlock; //134// Pointer to the read buffer for file. This starts at the position specified in the last SFileSetFilePointer call. This is cleared when SFileSetFilePointer is called or when finished reading the block
+       DWORD dwBytesRead; //138// Total bytes read from the current block in the open file. This is cleared when SFileSetFilePointer is called or when finished reading the block
+       DWORD dwBufferSize; //13C// Size of the read buffer for file. This is cleared when SFileSetFilePointer is called or when finished reading the block
+       DWORD dwRefCount; //140// Count of references to this open file
+       // Extra struct members used by SFmpq
+       HASHTABLEENTRY *lpHashEntry;
+       LPSTR lpFileName;
+       WORD wFileOffsetHigh;
+};
+
+#endif // #ifndef SFMPQ_INTERNAL_INCLUDED
index 5ca8bed..694d730 100644 (file)
@@ -13,6 +13,7 @@
 
 #include "../SComp/SComp.h"
 
+#include "SFmpqInternal.h"
 #include "MpqCrypt.h"
 #include "MpqHashTable.h"
 #include "MpqBlockTable.h"
@@ -53,6 +54,7 @@ SFMPQLIBMODULE::~SFMPQLIBMODULE()
 #endif
 
 LCID LocaleID = 0;
+WORD wCreationVersion = 0;
 BOOL SFMpqInit = FALSE;
 HINSTANCE hStorm = 0;
 #ifdef _USRDLL
@@ -110,7 +112,7 @@ void LoadStorm();
 void FreeStorm();
 
 BOOL WINAPI MpqOpenArchiveEx(LPCSTR lpFileName, DWORD dwPriority, DWORD dwFlags, MPQHANDLE *hMPQ, DWORD dwFlags2, DWORD dwMaximumFilesInArchive, DWORD dwBlockSize);
-DWORD WINAPI FindMpqHeaderAtLocation(HANDLE hFile, DWORD dwStart, DWORD dwLength);
+UInt64 WINAPI SFileFindMpqHeaderEx(HANDLE hFile, UInt64 qwStart = 0, UInt64 qwLength = 0);
 DWORD GetFullPath(LPCSTR lpFileName, char *lpBuffer, DWORD dwBufferLength);
 MPQHANDLE GetHashTableEntry(MPQHANDLE hMPQ, LPCSTR lpFileName, LCID FileLocale);
 MPQHANDLE GetHashTableEntryOfHash(MPQHANDLE hMPQ, DWORD dwTablePos, DWORD dwNameHashA, DWORD dwNameHashB, LCID FileLocale);
@@ -284,18 +286,155 @@ void SFMPQAPI WINAPI AboutSFMpq()
 #endif
 }
 
-BOOL WINAPI MpqOpenArchiveEx(LPCSTR lpFileName, DWORD dwPriority, DWORD dwFlags, MPQHANDLE *hMPQ, DWORD dwFlags2, DWORD dwMaximumFilesInArchive, DWORD dwBlockSize)
+BOOL MpqWriteHeaders(MPQARCHIVE *mpqOpenArc)
+{
+       DWORD nIOLen;
+       BOOL bReturnVal = FALSE;
+
+       SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart, FILE_BEGIN);
+       bReturnVal = WriteFile(mpqOpenArc->hFile, &mpqOpenArc->MpqHeader, sizeof(MPQHEADER), &nIOLen, 0);
+
+       if (bReturnVal && mpqOpenArc->MpqHeader.wVersion > 0) {
+               bReturnVal = WriteFile(mpqOpenArc->hFile, &mpqOpenArc->MpqHeader_Ex, sizeof(MPQHEADER_EX), &nIOLen, 0);
+       }
+
+       return bReturnVal;
+}
+
+BOOL MpqWriteNewArchive(MPQARCHIVE *mpqOpenArc)
 {
-       DWORD flen,tsz;
+       DWORD nIOLen;
+
+       memcpy(&mpqOpenArc->MpqHeader.dwMPQID,ID_MPQ,4);
+       mpqOpenArc->MpqHeader.wVersion = wCreationVersion;
+
+       if (mpqOpenArc->MpqHeader.wVersion == 0)
+               mpqOpenArc->MpqHeader.dwHeaderSize = sizeof(MPQHEADER);
+       else
+               mpqOpenArc->MpqHeader.dwHeaderSize = sizeof(MPQHEADER) + sizeof(MPQHEADER_EX);
+       mpqOpenArc->dwHeaderSize = mpqOpenArc->MpqHeader.dwHeaderSize;
+
+       if (mpqOpenArc->MpqHeader.wBlockSize & 0xFFFF0000)
+               mpqOpenArc->MpqHeader.wBlockSize = DEFAULT_BLOCK_SIZE;
+       DWORD i;
+       for (i=1;i<mpqOpenArc->MpqHeader.dwHashTableSize;i*=2) {}
+       mpqOpenArc->MpqHeader.dwHashTableSize = i;
+       mpqOpenArc->MpqHeader.dwBlockTableSize = 0;
+       mpqOpenArc->MpqHeader.dwHashTableOffset = mpqOpenArc->dwHeaderSize;
+       mpqOpenArc->MpqHeader.dwBlockTableOffset = mpqOpenArc->dwHeaderSize + mpqOpenArc->MpqHeader.dwHashTableSize * sizeof(HASHTABLEENTRY);
+       mpqOpenArc->MpqHeader_Ex.qwExtendedBlockOffsetTable = 0;
+       mpqOpenArc->MpqHeader_Ex.wHashTableOffsetHigh = 0;
+       mpqOpenArc->MpqHeader_Ex.wBlockTableOffsetHigh = 0;
+       mpqOpenArc->MpqHeader.dwMPQSize = mpqOpenArc->dwHeaderSize + mpqOpenArc->MpqHeader.dwHashTableSize * sizeof(HASHTABLEENTRY);
+
+       if (!MpqWriteHeaders(mpqOpenArc))
+               return FALSE;
+
+       mpqOpenArc->lpHashTable = (HASHTABLEENTRY *)SFAlloc(sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize);
+       if (!mpqOpenArc->lpHashTable) {
+               return FALSE;
+       }
+       memset(mpqOpenArc->lpHashTable, 0xFF, sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize);
+       EncryptData((LPBYTE)mpqOpenArc->lpHashTable, sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize, dwHashTableKey);
+       if (!WriteFile(mpqOpenArc->hFile, mpqOpenArc->lpHashTable, sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize, &nIOLen, 0)) {
+               return FALSE;
+       }
+
+       return TRUE;
+}
+
+BOOL MpqReadExistingArchive(MPQARCHIVE *mpqOpenArc)
+{
+       DWORD nIOLen;
+
+       SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart, FILE_BEGIN);
+       if (!ReadFile(mpqOpenArc->hFile, &mpqOpenArc->MpqHeader, sizeof(MPQHEADER), &nIOLen, 0))
+               return FALSE;
+
+       if (mpqOpenArc->MpqHeader.wVersion > 0) {
+               mpqOpenArc->dwHeaderSize = sizeof(MPQHEADER) + sizeof(MPQHEADER_EX);
+               if (!ReadFile(mpqOpenArc->hFile, &mpqOpenArc->MpqHeader_Ex, sizeof(MPQHEADER_EX), &nIOLen, 0))
+                       return FALSE;
+       }
+       else {
+               mpqOpenArc->dwHeaderSize = sizeof(MPQHEADER);
+               memset(&mpqOpenArc->MpqHeader_Ex, 0, sizeof(MPQHEADER_EX));
+       }
+
+       mpqOpenArc->lpHashTable = (HASHTABLEENTRY *)SFAlloc(sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize);
+       if (!mpqOpenArc->lpHashTable)
+               return FALSE;
+
+       if (mpqOpenArc->MpqHeader.dwBlockTableSize) {
+               mpqOpenArc->lpBlockTable = (BLOCKTABLEENTRY *)SFAlloc((sizeof(BLOCKTABLEENTRY) + sizeof(UInt16)) * mpqOpenArc->MpqHeader.dwBlockTableSize);
+               mpqOpenArc->lpFileOffsetsHigh = (UInt16 *)(mpqOpenArc->lpBlockTable + mpqOpenArc->MpqHeader.dwBlockTableSize);
+               if (!mpqOpenArc->lpBlockTable)
+                       return FALSE;
+       }
+
+       SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->MpqHeader.dwHashTableOffset, mpqOpenArc->MpqHeader_Ex.wHashTableOffsetHigh), FILE_BEGIN);
+       if (!ReadFile(mpqOpenArc->hFile, mpqOpenArc->lpHashTable, sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize, &nIOLen, 0))
+               return FALSE;
+
+       if (mpqOpenArc->MpqHeader.dwBlockTableSize) {
+               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->MpqHeader.dwBlockTableOffset, mpqOpenArc->MpqHeader_Ex.wBlockTableOffsetHigh), FILE_BEGIN);
+               if (!ReadFile(mpqOpenArc->hFile, mpqOpenArc->lpBlockTable, sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize, &nIOLen, 0))
+                       return FALSE;
+
+               if (mpqOpenArc->MpqHeader_Ex.qwExtendedBlockOffsetTable) {
+                       SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + mpqOpenArc->MpqHeader_Ex.qwExtendedBlockOffsetTable, FILE_BEGIN);
+                       if (!ReadFile(mpqOpenArc->hFile, mpqOpenArc->lpFileOffsetsHigh, sizeof(WORD) * mpqOpenArc->MpqHeader.dwBlockTableSize, &nIOLen, 0))
+                               return FALSE;
+               }
+       }
+
+       return TRUE;
+}
 
+BOOL MpqOpenArchiveInit(MPQARCHIVE *mpqOpenArc, LPCSTR lpFileName, DWORD dwPriority, DWORD dwFlags1, DWORD dwFlags2, DWORD dwExtraFlags)
+{
+       /*mpqOpenArc->lpFileName = (char *)SFAlloc(strlen(lpFileName)+1);
+       if(!mpqOpenArc->lpFileName)
+               return FALSE;*/
+       DecryptData((LPBYTE)mpqOpenArc->lpHashTable,sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize,dwHashTableKey);
+       if (mpqOpenArc->lpBlockTable) DecryptData((LPBYTE)mpqOpenArc->lpBlockTable,sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize,dwBlockTableKey);
+       mpqOpenArc->lpFileName = mpqOpenArc->szFileName;
+       strncpy(mpqOpenArc->lpFileName,lpFileName,259);
+       if (FirstLastMpq[1]) FirstLastMpq[1]->lpNextArc = mpqOpenArc;
+       mpqOpenArc->lpNextArc = (MPQARCHIVE *)FirstLastMpq;
+       mpqOpenArc->lpPrevArc = (MPQARCHIVE *)FirstLastMpq[1];
+       if (!FirstLastMpq[0]) {
+               mpqOpenArc->lpPrevArc = (MPQARCHIVE *)0xEAFC5E23;
+               FirstLastMpq[0] = mpqOpenArc;
+       }
+       FirstLastMpq[1] = mpqOpenArc;
+       mpqOpenArc->dwFlags1 = dwFlags1;
+       mpqOpenArc->dwPriority = dwPriority;
+       mpqOpenArc->lpLastReadFile = 0;
+       mpqOpenArc->dwUnk = 0;
+       mpqOpenArc->dwBlockSize = 512 << mpqOpenArc->MpqHeader.wBlockSize;
+       mpqOpenArc->lpLastReadBlock = 0;
+       mpqOpenArc->dwBufferSize = 0;
+       mpqOpenArc->qwMPQEnd = mpqOpenArc->qwMPQStart + mpqOpenArc->MpqHeader.dwMPQSize;
+       mpqOpenArc->lpMPQHeader = &mpqOpenArc->MpqHeader;
+       mpqOpenArc->qwReadOffset = mpqOpenArc->qwMPQEnd;
+       mpqOpenArc->dwRefCount = 1;
+       mpqOpenArc->dwFlags = dwFlags2;
+       mpqOpenArc->dwExtraFlags = dwExtraFlags;
+
+       return TRUE;
+}
+
+BOOL WINAPI MpqOpenArchiveEx(LPCSTR lpFileName, DWORD dwPriority, DWORD dwFlags, MPQHANDLE *hMPQ, DWORD dwFlags2, DWORD dwMaximumFilesInArchive, DWORD dwBlockSize)
+{
        if (!lpFileName || !hMPQ) {
                SetLastError(ERROR_INVALID_PARAMETER);
-               if (hMPQ) *hMPQ = 0;
+               if (hMPQ) *hMPQ = (MPQHANDLE)INVALID_HANDLE_VALUE;
                return FALSE;
        }
+       *hMPQ = (MPQHANDLE)INVALID_HANDLE_VALUE;
        if (!*lpFileName) {
                SetLastError(ERROR_INVALID_PARAMETER);
-               *hMPQ = 0;
                return FALSE;
        }
 
@@ -315,7 +454,7 @@ BOOL WINAPI MpqOpenArchiveEx(LPCSTR lpFileName, DWORD dwPriority, DWORD dwFlags,
        else if (dwFlags&2)
                dwFlags1 |= 1;
        if (dwFlags & SFILE_OPEN_CD_ROM_FILE)
-               if (!(dwFlags1&2)) {*hMPQ = 0;return FALSE;}
+               if (!(dwFlags1&2)) {return FALSE;}
 #endif
 
        DWORD dwCreateFlags,dwAccessFlags,dwShareFlags;
@@ -326,7 +465,6 @@ BOOL WINAPI MpqOpenArchiveEx(LPCSTR lpFileName, DWORD dwPriority, DWORD dwFlags,
        if (dwFlags2 & MOAU_READ_ONLY) {
                if (!(dwFlags2 & MOAU_OPEN_EXISTING)) {
                        SetLastError(MPQ_ERROR_BAD_OPEN_MODE);
-                       *hMPQ = 0;
                        return FALSE;
                }
                dwAccessFlags = GENERIC_READ;
@@ -353,169 +491,71 @@ BOOL WINAPI MpqOpenArchiveEx(LPCSTR lpFileName, DWORD dwPriority, DWORD dwFlags,
        if (hFile!=INVALID_HANDLE_VALUE)
        {
                MPQARCHIVE **lpnOpenMpq = (MPQARCHIVE **)SFAlloc(sizeof(MPQARCHIVE *) * (dwOpenMpqCount+1));
-               if (lpnOpenMpq==0) {
+               if (!lpnOpenMpq) {
                        CloseHandle(hFile);
-                       *hMPQ = 0;
                        return FALSE;
                }
-               DWORD dwMpqStart;
                MPQARCHIVE *mpqOpenArc;
                if (SFGetFileSize(hFile)==0 && !(dwFlags2 & MOAU_READ_ONLY))
                {
-                       dwMpqStart = 0;
                        mpqOpenArc = (MPQARCHIVE *)SFAlloc(sizeof(MPQARCHIVE));
                        if (!mpqOpenArc) {
                                SFFree(lpnOpenMpq);
                                CloseHandle(hFile);
-                               *hMPQ = 0;
                                return FALSE;
                        }
-                       memcpy(&mpqOpenArc->MpqHeader.dwMPQID,ID_MPQ,4);
-                       mpqOpenArc->MpqHeader.dwHeaderSize = sizeof(MPQHEADER);
-                       mpqOpenArc->MpqHeader.wUnused0C = 0;
-                       if (dwBlockSize & 0xFFFF0000)
-                               mpqOpenArc->MpqHeader.wBlockSize = DEFAULT_BLOCK_SIZE;
-                       else
-                               mpqOpenArc->MpqHeader.wBlockSize = (WORD)dwBlockSize;
-                       DWORD i;
-                       for (i=1;i<dwMaximumFilesInArchive;i*=2) {}
-                       dwMaximumFilesInArchive = i;
+
+                       mpqOpenArc->hFile = hFile;
+                       mpqOpenArc->qwMPQStart = 0;
                        mpqOpenArc->MpqHeader.dwHashTableSize = dwMaximumFilesInArchive;
-                       mpqOpenArc->MpqHeader.dwBlockTableSize = 0;
-                       mpqOpenArc->MpqHeader.dwHashTableOffset = mpqOpenArc->MpqHeader.dwHeaderSize;
-                       mpqOpenArc->MpqHeader.dwBlockTableOffset = mpqOpenArc->MpqHeader.dwHeaderSize + mpqOpenArc->MpqHeader.dwHashTableSize * sizeof(HASHTABLEENTRY);
-                       mpqOpenArc->MpqHeader.dwMPQSize = mpqOpenArc->MpqHeader.dwHeaderSize + mpqOpenArc->MpqHeader.dwHashTableSize * sizeof(HASHTABLEENTRY);
-                       if(WriteFile(hFile,&mpqOpenArc->MpqHeader,mpqOpenArc->MpqHeader.dwHeaderSize,&tsz,0)==0) {
-                               SFFree(lpnOpenMpq);
-                               SFFree(mpqOpenArc);
-                               CloseHandle(hFile);
-                               *hMPQ = 0;
-                               return FALSE;
-                       }
-                       flen = mpqOpenArc->MpqHeader.dwMPQSize;
-                       mpqOpenArc->lpHashTable = (HASHTABLEENTRY *)SFAlloc(sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize);
-                       if(!mpqOpenArc->lpHashTable) {
-                               SFFree(lpnOpenMpq);
+                       mpqOpenArc->MpqHeader.wBlockSize = (WORD)dwBlockSize;
+
+                       if (!MpqWriteNewArchive(mpqOpenArc)) {
+                               if (mpqOpenArc->lpHashTable) SFFree(mpqOpenArc->lpHashTable);
                                SFFree(mpqOpenArc);
-                               CloseHandle(hFile);
-                               *hMPQ = 0;
-                               return FALSE;
-                       }
-                       memset(mpqOpenArc->lpHashTable,0xFF,sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize);
-                       EncryptData((LPBYTE)mpqOpenArc->lpHashTable,sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize,dwHashTableKey);
-                       if(WriteFile(hFile,mpqOpenArc->lpHashTable,sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize,&tsz,0)==0) {
-                               SFFree(mpqOpenArc->lpHashTable);
                                SFFree(lpnOpenMpq);
-                               SFFree(mpqOpenArc);
                                CloseHandle(hFile);
-                               *hMPQ = 0;
                                return FALSE;
                        }
                }
                else
                {
-                       dwMpqStart = SFileFindMpqHeader(hFile);
-                       if (dwMpqStart==0xFFFFFFFF) {
+                       UInt64 qwMpqStart = SFileFindMpqHeaderEx(hFile);
+                       if (qwMpqStart == (UInt64)-1) {
                                SFFree(lpnOpenMpq);
                                CloseHandle(hFile);
                                SetLastError(MPQ_ERROR_MPQ_INVALID);
-                               *hMPQ = 0;
                                return FALSE;
                        }
-                       flen = SFGetFileSize(hFile);
                        mpqOpenArc = (MPQARCHIVE *)SFAlloc(sizeof(MPQARCHIVE));
                        if (!mpqOpenArc) {
                                SFFree(lpnOpenMpq);
                                CloseHandle(hFile);
-                               *hMPQ = 0;
-                               return FALSE;
-                       }
-                       SFSetFilePointer(hFile,dwMpqStart,FILE_BEGIN);
-                       if(ReadFile(hFile,&mpqOpenArc->MpqHeader,sizeof(MPQHEADER),&tsz,0)==0) {
-                               SFFree(lpnOpenMpq);
-                               SFFree(mpqOpenArc);
-                               CloseHandle(hFile);
-                               *hMPQ = 0;
                                return FALSE;
                        }
-                       mpqOpenArc->lpHashTable = (HASHTABLEENTRY *)SFAlloc(sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize);
-                       if(!mpqOpenArc->lpHashTable) {
-                               SFFree(lpnOpenMpq);
+
+                       mpqOpenArc->hFile = hFile;
+                       mpqOpenArc->qwMPQStart = qwMpqStart;
+
+                       if (!MpqReadExistingArchive(mpqOpenArc)) {
+                               if (mpqOpenArc->lpBlockTable) SFFree(mpqOpenArc->lpBlockTable);
+                               if (mpqOpenArc->lpHashTable) SFFree(mpqOpenArc->lpHashTable);
                                SFFree(mpqOpenArc);
-                               CloseHandle(hFile);
-                               *hMPQ = 0;
-                               return FALSE;
-                       }
-                       if (mpqOpenArc->MpqHeader.dwBlockTableSize!=0) {
-                               mpqOpenArc->lpBlockTable = (BLOCKTABLEENTRY *)SFAlloc(sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize);
-                               if(!mpqOpenArc->lpBlockTable) {
-                                       SFFree(mpqOpenArc->lpHashTable);
-                                       SFFree(lpnOpenMpq);
-                                       SFFree(mpqOpenArc);
-                                       CloseHandle(hFile);
-                                       *hMPQ = 0;
-                                       return FALSE;
-                               }
-                       }
-                       SFSetFilePointer(hFile,dwMpqStart+mpqOpenArc->MpqHeader.dwHashTableOffset,FILE_BEGIN);
-                       if(ReadFile(hFile,mpqOpenArc->lpHashTable,sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize,&tsz,0)==0) {
-                               if(mpqOpenArc->lpBlockTable) SFFree(mpqOpenArc->lpBlockTable);
-                               SFFree(mpqOpenArc->lpHashTable);
                                SFFree(lpnOpenMpq);
-                               SFFree(mpqOpenArc);
                                CloseHandle(hFile);
-                               *hMPQ = 0;
                                return FALSE;
                        }
-                       if (mpqOpenArc->MpqHeader.dwBlockTableSize!=0) {
-                               SFSetFilePointer(hFile,dwMpqStart+mpqOpenArc->MpqHeader.dwBlockTableOffset,FILE_BEGIN);
-                               if(ReadFile(hFile,mpqOpenArc->lpBlockTable,sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize,&tsz,0)==0) {
-                                       SFFree(mpqOpenArc->lpBlockTable);
-                                       SFFree(mpqOpenArc->lpHashTable);
-                                       SFFree(lpnOpenMpq);
-                                       SFFree(mpqOpenArc);
-                                       CloseHandle(hFile);
-                                       *hMPQ = 0;
-                                       return FALSE;
-                               }
-                       }
                }
-               /*mpqOpenArc->lpFileName = (char *)SFAlloc(strlen(lpFileName)+1);
-               if(!mpqOpenArc->lpFileName) {
-                       if(mpqOpenArc->lpBlockTable) SFFree(mpqOpenArc->lpBlockTable);
+
+               if (!MpqOpenArchiveInit(mpqOpenArc, lpFileName, dwPriority, dwFlags1, dwFlags2, 0)) {
+                       if (mpqOpenArc->lpBlockTable) SFFree(mpqOpenArc->lpBlockTable);
                        SFFree(mpqOpenArc->lpHashTable);
-                       SFFree(lpnOpenMpq);
                        SFFree(mpqOpenArc);
+                       SFFree(lpnOpenMpq);
                        CloseHandle(hFile);
-                       *hMPQ = 0;
                        return FALSE;
-               }*/
-               DecryptData((LPBYTE)mpqOpenArc->lpHashTable,sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize,dwHashTableKey);
-               if (mpqOpenArc->lpBlockTable) DecryptData((LPBYTE)mpqOpenArc->lpBlockTable,sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize,dwBlockTableKey);
-               mpqOpenArc->lpFileName = mpqOpenArc->szFileName;
-               strncpy(mpqOpenArc->lpFileName,lpFileName,259);
-               if (FirstLastMpq[1]) FirstLastMpq[1]->lpNextArc = mpqOpenArc;
-               mpqOpenArc->lpNextArc = (MPQARCHIVE *)FirstLastMpq;
-               mpqOpenArc->lpPrevArc = (MPQARCHIVE *)FirstLastMpq[1];
-               if (!FirstLastMpq[0]) {
-                       mpqOpenArc->lpPrevArc = (MPQARCHIVE *)0xEAFC5E23;
-                       FirstLastMpq[0] = mpqOpenArc;
-               }
-               FirstLastMpq[1] = mpqOpenArc;
-               mpqOpenArc->hFile = hFile;
-               mpqOpenArc->dwFlags1 = dwFlags1;
-               mpqOpenArc->dwPriority = dwPriority;
-               mpqOpenArc->lpLastReadFile = 0;
-               mpqOpenArc->dwUnk = 0;
-               mpqOpenArc->dwBlockSize = 512 << mpqOpenArc->MpqHeader.wBlockSize;
-               mpqOpenArc->lpLastReadBlock = 0;
-               mpqOpenArc->dwBufferSize = 0;
-               mpqOpenArc->dwMPQStart = dwMpqStart;
-               mpqOpenArc->lpMPQHeader = &mpqOpenArc->MpqHeader;
-               mpqOpenArc->dwReadOffset = flen;
-               mpqOpenArc->dwRefCount = 1;
-               mpqOpenArc->dwFlags = dwFlags2;
-               mpqOpenArc->dwExtraFlags = 0;
+               }
+
                memcpy(lpnOpenMpq,lpOpenMpq,sizeof(MPQARCHIVE *) * dwOpenMpqCount);
                lpnOpenMpq[dwOpenMpqCount] = mpqOpenArc;
                if (lpOpenMpq) SFFree(lpOpenMpq);
@@ -523,6 +563,7 @@ BOOL WINAPI MpqOpenArchiveEx(LPCSTR lpFileName, DWORD dwPriority, DWORD dwFlags,
                dwOpenMpqCount++;
                if (dwOpenMpqCount>1) SortOpenArchivesByPriority();
                *hMPQ = (MPQHANDLE)mpqOpenArc;
+
                return TRUE;
        }
        else {
@@ -535,16 +576,14 @@ BOOL WINAPI MpqOpenArchiveEx(LPCSTR lpFileName, DWORD dwPriority, DWORD dwFlags,
 
 BOOL SFMPQAPI WINAPI SFileOpenFileAsArchive(MPQHANDLE hSourceMPQ, LPCSTR lpFileName, DWORD dwPriority, DWORD dwFlags, MPQHANDLE *hMPQ)
 {
-       DWORD flen,tsz;
-
        if (!lpFileName || !hMPQ) {
                SetLastError(ERROR_INVALID_PARAMETER);
-               if (hMPQ) *hMPQ = 0;
+               if (hMPQ) *hMPQ = (MPQHANDLE)INVALID_HANDLE_VALUE;
                return FALSE;
        }
+       *hMPQ = (MPQHANDLE)INVALID_HANDLE_VALUE;
        if (!*lpFileName) {
                SetLastError(ERROR_INVALID_PARAMETER);
-               *hMPQ = 0;
                return FALSE;
        }
 
@@ -559,105 +598,42 @@ BOOL SFMPQAPI WINAPI SFileOpenFileAsArchive(MPQHANDLE hSourceMPQ, LPCSTR lpFileN
                hFile = mpqArcFile.lpParentArc->hFile;
                MPQARCHIVE **lpnOpenMpq = (MPQARCHIVE **)SFAlloc(sizeof(MPQARCHIVE *) * (dwOpenMpqCount+1));
                if (!lpnOpenMpq) {
-                       *hMPQ = 0;
                        return FALSE;
                }
-               DWORD dwMpqStart;
                MPQARCHIVE *mpqOpenArc;
-               dwMpqStart = mpqArcFile.lpParentArc->dwMPQStart + mpqArcFile.lpBlockEntry->dwFileOffset;
-               flen = mpqArcFile.lpBlockEntry->dwFullSize;
-               dwMpqStart = FindMpqHeaderAtLocation(hFile,dwMpqStart,flen);
-               if (dwMpqStart==0xFFFFFFFF) {
+               UInt64 qwMpqStart = mpqArcFile.lpParentArc->qwMPQStart + MakeUInt64(mpqArcFile.lpBlockEntry->dwFileOffset, mpqArcFile.wFileOffsetHigh);
+               UInt64 flen = mpqArcFile.lpBlockEntry->dwFullSize;
+               qwMpqStart = SFileFindMpqHeaderEx(hFile, qwMpqStart, flen);
+               if (qwMpqStart == (UInt64)-1) {
                        SFFree(lpnOpenMpq);
                        SetLastError(MPQ_ERROR_MPQ_INVALID);
-                       *hMPQ = 0;
                        return FALSE;
                }
                mpqOpenArc = (MPQARCHIVE *)SFAlloc(sizeof(MPQARCHIVE));
                if (!mpqOpenArc) {
                        SFFree(lpnOpenMpq);
-                       *hMPQ = 0;
                        return FALSE;
                }
-               SFSetFilePointer(hFile,dwMpqStart,FILE_BEGIN);
-               if(ReadFile(hFile,&mpqOpenArc->MpqHeader,sizeof(MPQHEADER),&tsz,0)==0) {
-                       SFFree(lpnOpenMpq);
+
+               mpqOpenArc->hFile = hFile;
+               mpqOpenArc->qwMPQStart = qwMpqStart;
+
+               if (!MpqReadExistingArchive(mpqOpenArc)) {
+                       if (mpqOpenArc->lpBlockTable) SFFree(mpqOpenArc->lpBlockTable);
+                       if (mpqOpenArc->lpHashTable) SFFree(mpqOpenArc->lpHashTable);
                        SFFree(mpqOpenArc);
-                       *hMPQ = 0;
-                       return FALSE;
-               }
-               mpqOpenArc->lpHashTable = (HASHTABLEENTRY *)SFAlloc(sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize);
-               if(!mpqOpenArc->lpHashTable) {
                        SFFree(lpnOpenMpq);
-                       SFFree(mpqOpenArc);
-                       *hMPQ = 0;
                        return FALSE;
                }
-               if (mpqOpenArc->MpqHeader.dwBlockTableSize!=0) {
-                       mpqOpenArc->lpBlockTable = (BLOCKTABLEENTRY *)SFAlloc(sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize);
-                       if(!mpqOpenArc->lpBlockTable) {
-                               SFFree(mpqOpenArc->lpHashTable);
-                               SFFree(lpnOpenMpq);
-                               SFFree(mpqOpenArc);
-                               *hMPQ = 0;
-                               return FALSE;
-                       }
-               }
-               SFSetFilePointer(hFile,dwMpqStart+mpqOpenArc->MpqHeader.dwHashTableOffset,FILE_BEGIN);
-               if(ReadFile(hFile,mpqOpenArc->lpHashTable,sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize,&tsz,0)==0) {
-                       if(mpqOpenArc->lpBlockTable) SFFree(mpqOpenArc->lpBlockTable);
+
+               if (!MpqOpenArchiveInit(mpqOpenArc, lpFileName, dwPriority, 0, dwFlags, 1)) {
+                       if (mpqOpenArc->lpBlockTable) SFFree(mpqOpenArc->lpBlockTable);
                        SFFree(mpqOpenArc->lpHashTable);
-                       SFFree(lpnOpenMpq);
                        SFFree(mpqOpenArc);
-                       *hMPQ = 0;
-                       return FALSE;
-               }
-               if (mpqOpenArc->MpqHeader.dwBlockTableSize!=0) {
-                       SFSetFilePointer(hFile,dwMpqStart+mpqOpenArc->MpqHeader.dwBlockTableOffset,FILE_BEGIN);
-                       if(ReadFile(hFile,mpqOpenArc->lpBlockTable,sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize,&tsz,0)==0) {
-                               SFFree(mpqOpenArc->lpBlockTable);
-                               SFFree(mpqOpenArc->lpHashTable);
-                               SFFree(lpnOpenMpq);
-                               SFFree(mpqOpenArc);
-                               *hMPQ = 0;
-                               return FALSE;
-                       }
-               }
-               /*mpqOpenArc->lpFileName = (char *)SFAlloc(strlen(lpFileName)+1);
-               if(!mpqOpenArc->lpFileName) {
-                       if(mpqOpenArc->lpBlockTable) SFFree(mpqOpenArc->lpBlockTable);
-                       SFFree(mpqOpenArc->lpHashTable);
                        SFFree(lpnOpenMpq);
-                       SFFree(mpqOpenArc);
-                       *hMPQ = 0;
                        return FALSE;
-               }*/
-               DecryptData((LPBYTE)mpqOpenArc->lpHashTable,sizeof(HASHTABLEENTRY) * mpqOpenArc->MpqHeader.dwHashTableSize,dwHashTableKey);
-               if (mpqOpenArc->lpBlockTable) DecryptData((LPBYTE)mpqOpenArc->lpBlockTable,sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize,dwBlockTableKey);
-               mpqOpenArc->lpFileName = mpqOpenArc->szFileName;
-               strncpy(mpqOpenArc->lpFileName,lpFileName,259);
-               if (FirstLastMpq[1]) FirstLastMpq[1]->lpNextArc = mpqOpenArc;
-               mpqOpenArc->lpNextArc = (MPQARCHIVE *)FirstLastMpq;
-               mpqOpenArc->lpPrevArc = (MPQARCHIVE *)FirstLastMpq[1];
-               if (!FirstLastMpq[0]) {
-                       mpqOpenArc->lpPrevArc = (MPQARCHIVE *)0xEAFC5E23;
-                       FirstLastMpq[0] = mpqOpenArc;
-               }
-               FirstLastMpq[1] = mpqOpenArc;
-               mpqOpenArc->hFile = hFile;
-               mpqOpenArc->dwFlags1 = 0;
-               mpqOpenArc->dwPriority = dwPriority;
-               mpqOpenArc->lpLastReadFile = 0;
-               mpqOpenArc->dwUnk = 0;
-               mpqOpenArc->dwBlockSize = 512 << mpqOpenArc->MpqHeader.wBlockSize;
-               mpqOpenArc->lpLastReadBlock = 0;
-               mpqOpenArc->dwBufferSize = 0;
-               mpqOpenArc->dwMPQStart = dwMpqStart;
-               mpqOpenArc->lpMPQHeader = &mpqOpenArc->MpqHeader;
-               mpqOpenArc->dwReadOffset = flen;
-               mpqOpenArc->dwRefCount = 1;
-               mpqOpenArc->dwFlags = dwFlags;
-               mpqOpenArc->dwExtraFlags = 1;
+               }
+
                memcpy(lpnOpenMpq,lpOpenMpq,sizeof(MPQARCHIVE *) * dwOpenMpqCount);
                lpnOpenMpq[dwOpenMpqCount] = mpqOpenArc;
                if (lpOpenMpq) SFFree(lpOpenMpq);
@@ -665,6 +641,7 @@ BOOL SFMPQAPI WINAPI SFileOpenFileAsArchive(MPQHANDLE hSourceMPQ, LPCSTR lpFileN
                dwOpenMpqCount++;
                if (dwOpenMpqCount>1) SortOpenArchivesByPriority();
                *hMPQ = (MPQHANDLE)mpqOpenArc;
+
                return TRUE;
        }
        else {
@@ -908,6 +885,7 @@ BOOL SFMPQAPI WINAPI SFileOpenFileEx(MPQHANDLE hMPQ, LPCSTR lpFileName, DWORD dw
                mpqOpenFile->hFile = INVALID_HANDLE_VALUE;
                mpqOpenFile->lpHashEntry = (HASHTABLEENTRY *)hnFile;
                mpqOpenFile->lpBlockEntry = &((MPQARCHIVE *)hnMPQ)->lpBlockTable[mpqOpenFile->lpHashEntry->dwBlockTableIndex];
+               mpqOpenFile->wFileOffsetHigh = ((MPQARCHIVE *)hnMPQ)->lpFileOffsetsHigh[mpqOpenFile->lpHashEntry->dwBlockTableIndex];
                mpqOpenFile->lpParentArc->dwRefCount++;
                if (mpqOpenFile->lpBlockEntry->dwFlags&MAFA_ENCRYPT) {
                        LPSTR lpOldNameBuffer = mpqOpenFile->lpFileName;
@@ -1230,7 +1208,7 @@ BOOL SFMPQAPI WINAPI SFileReadFile(MPQHANDLE hFile,LPVOID lpBuffer,DWORD nNumber
        DWORD HeaderLength=0;
        if (memcmp(&mpqOpenArc->MpqHeader.dwMPQID,ID_BN3,4)==0)
        {
-               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset,FILE_BEGIN);
+               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[BlockIndex]), FILE_BEGIN);
                ReadFile(mpqOpenArc->hFile,&HeaderLength,4,&nBytesRead,0);
        }
        DWORD i;
@@ -1247,7 +1225,7 @@ BOOL SFMPQAPI WINAPI SFileReadFile(MPQHANDLE hFile,LPVOID lpBuffer,DWORD nNumber
                }
                if (((mpqOpenArc->lpBlockTable[BlockIndex].dwFlags & MAFA_COMPRESS) || (mpqOpenArc->lpBlockTable[BlockIndex].dwFlags & MAFA_COMPRESS2)) && !(mpqOpenArc->lpBlockTable[BlockIndex].dwFlags & MAFA_SINGLEBLOCK))
                {
-                       SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset+HeaderLength,FILE_BEGIN);
+                       SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[BlockIndex]) + HeaderLength, FILE_BEGIN);
                        ReadFile(mpqOpenArc->hFile,dwBlockPtrTable,(TotalBlocks+1)*4,&nBytesRead,0);
                        if (mpqOpenArc->lpBlockTable[BlockIndex].dwFlags & MAFA_ENCRYPT) {
                                DecryptData((LPBYTE)dwBlockPtrTable,(TotalBlocks+1)*4,dwCryptKey-1);
@@ -1276,7 +1254,7 @@ BOOL SFMPQAPI WINAPI SFileReadFile(MPQHANDLE hFile,LPVOID lpBuffer,DWORD nNumber
        DWORD blk=0,blki=0;
        for (i=blockNum;i<nBlocks;i++) {
                if (blk==0 && blkLargeBuffer) {
-                       SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset+HeaderLength+mpqOpenFile->lpdwBlockOffsets[i],FILE_BEGIN);
+                       SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[BlockIndex]) + HeaderLength + mpqOpenFile->lpdwBlockOffsets[i], FILE_BEGIN);
                        blki=i;
                        if (i+nBufferCount>nBlocks) {
                                if (ReadFile(mpqOpenArc->hFile,blkLargeBuffer,mpqOpenFile->lpdwBlockOffsets[nBlocks]-mpqOpenFile->lpdwBlockOffsets[i],&nBytesRead,0)==0) {
@@ -1304,7 +1282,7 @@ BOOL SFMPQAPI WINAPI SFileReadFile(MPQHANDLE hFile,LPVOID lpBuffer,DWORD nNumber
                        memcpy(blkBuffer,((char *)blkLargeBuffer)+(mpqOpenFile->lpdwBlockOffsets[blki+blk]-mpqOpenFile->lpdwBlockOffsets[blki]),mpqOpenFile->lpdwBlockOffsets[i+1]-mpqOpenFile->lpdwBlockOffsets[i]);
                }
                else {
-                       SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset+HeaderLength+mpqOpenFile->lpdwBlockOffsets[i],FILE_BEGIN);
+                       SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[BlockIndex]) + HeaderLength + mpqOpenFile->lpdwBlockOffsets[i], FILE_BEGIN);
                        blki=i;
                        if (ReadFile(mpqOpenArc->hFile,blkBuffer,mpqOpenFile->lpdwBlockOffsets[i+1]-mpqOpenFile->lpdwBlockOffsets[i],&nBytesRead,0)==0) {
                                if (compbuffer) SFFree(compbuffer);
@@ -1501,7 +1479,7 @@ BOOL SFMPQAPI WINAPI SFileListFiles(MPQHANDLE hMPQ, LPCSTR lpFileLists, FILELIST
                                        lpListBuffer[i].dwFileExists = 1;
                                else
                                        lpListBuffer[i].dwFileExists=0xFFFFFFFF;
-                               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[dwBlockIndex].dwFileOffset+0x40,FILE_BEGIN);
+                               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[dwBlockIndex].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[dwBlockIndex]) + 0x40, FILE_BEGIN);
                                ReadFile(mpqOpenArc->hFile,lpListBuffer[i].szFileName,260,&tsz,0);
 
                                if (mpqOpenArc->lpHashTable[i].dwNameHashA==HashString(lpListBuffer[i].szFileName,HASH_NAME_A) && mpqOpenArc->lpHashTable[i].dwNameHashB==HashString(lpListBuffer[i].szFileName,HASH_NAME_B)) {
@@ -1938,15 +1916,19 @@ BOOL SFMPQAPI WINAPI MpqAddFileToArchiveEx(MPQHANDLE hMPQ, LPCSTR lpSourceFileNa
        if ((hashEntry->dwBlockTableIndex&0xFFFFFFFE)==0xFFFFFFFE)
        {
                BLOCKTABLEENTRY *lpnBlockTable;
-               lpnBlockTable = (BLOCKTABLEENTRY *)SFAlloc(sizeof(BLOCKTABLEENTRY) * (mpqOpenArc->MpqHeader.dwBlockTableSize + 1));
+               lpnBlockTable = (BLOCKTABLEENTRY *)SFAlloc((sizeof(BLOCKTABLEENTRY) + sizeof(UInt16)) * (mpqOpenArc->MpqHeader.dwBlockTableSize + 1));
                if(!lpnBlockTable) {
                        SFFree(buffer);
                        return FALSE;
                }
-               if (mpqOpenArc->lpBlockTable) memcpy(lpnBlockTable,mpqOpenArc->lpBlockTable,sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize);
+               if (mpqOpenArc->lpBlockTable) {
+                       memcpy(lpnBlockTable,mpqOpenArc->lpBlockTable,sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize);
+                       memcpy(lpnBlockTable + mpqOpenArc->MpqHeader.dwBlockTableSize + 1, mpqOpenArc->lpFileOffsetsHigh, sizeof(UInt16) * mpqOpenArc->MpqHeader.dwBlockTableSize);
+               }
                mpqOpenArc->MpqHeader.dwBlockTableSize++;
                if (mpqOpenArc->lpBlockTable) SFFree(mpqOpenArc->lpBlockTable);
                mpqOpenArc->lpBlockTable = lpnBlockTable;
+               mpqOpenArc->lpFileOffsetsHigh = (UInt16 *)(mpqOpenArc->lpBlockTable + mpqOpenArc->MpqHeader.dwBlockTableSize);
                IsNewBlockEntry = TRUE;
        }
        DWORD BlockIndex = mpqOpenArc->MpqHeader.dwBlockTableSize - 1;
@@ -2019,9 +2001,7 @@ BOOL SFMPQAPI WINAPI MpqAddFileToArchiveEx(MPQHANDLE hMPQ, LPCSTR lpSourceFileNa
        mpqOpenArc->lpBlockTable[BlockIndex].dwCompressedSize = fsz;
        mpqOpenArc->lpBlockTable[BlockIndex].dwFullSize = ucfsz;
        mpqOpenArc->lpBlockTable[BlockIndex].dwFlags = dwFlags|MAFA_EXISTS;
-       DWORD dwFileOffset = mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset;
-       SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart,FILE_BEGIN);
-       WriteFile(mpqOpenArc->hFile,&mpqOpenArc->MpqHeader,sizeof(MPQHEADER),&tsz,0);
+       MpqWriteHeaders(mpqOpenArc);
        if (dwFlags & MAFA_ENCRYPT) {
                DWORD dwCryptKey;
                if (dwFlags&MAFA_ENCRYPT) dwCryptKey = HashString(lpDestFileName,HASH_KEY);
@@ -2041,7 +2021,7 @@ BOOL SFMPQAPI WINAPI MpqAddFileToArchiveEx(MPQHANDLE hMPQ, LPCSTR lpSourceFileNa
                }
        }
        SFFree(dwBlkpt);
-       SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+dwFileOffset,FILE_BEGIN);
+       SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[BlockIndex]), FILE_BEGIN);
        WriteFile(mpqOpenArc->hFile,buffer,fsz,&tsz,0);
        SFFree(buffer);
        WriteHashTable(mpqOpenArc);
@@ -2260,15 +2240,19 @@ BOOL SFMPQAPI WINAPI MpqAddFileFromBufferEx(MPQHANDLE hMPQ, LPVOID lpBuffer, DWO
        if ((hashEntry->dwBlockTableIndex&0xFFFFFFFE)==0xFFFFFFFE)
        {
                BLOCKTABLEENTRY *lpnBlockTable;
-               lpnBlockTable = (BLOCKTABLEENTRY *)SFAlloc(sizeof(BLOCKTABLEENTRY) * (mpqOpenArc->MpqHeader.dwBlockTableSize + 1));
-               if(lpnBlockTable==0) {
+               lpnBlockTable = (BLOCKTABLEENTRY *)SFAlloc((sizeof(BLOCKTABLEENTRY) + sizeof(UInt16)) * (mpqOpenArc->MpqHeader.dwBlockTableSize + 1));
+               if(!lpnBlockTable) {
                        SFFree(buffer);
                        return FALSE;
                }
-               if (mpqOpenArc->lpBlockTable!=0) memcpy(lpnBlockTable,mpqOpenArc->lpBlockTable,sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize);
+               if (mpqOpenArc->lpBlockTable) {
+                       memcpy(lpnBlockTable,mpqOpenArc->lpBlockTable,sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize);
+                       memcpy(lpnBlockTable + mpqOpenArc->MpqHeader.dwBlockTableSize + 1, mpqOpenArc->lpFileOffsetsHigh, sizeof(UInt16) * mpqOpenArc->MpqHeader.dwBlockTableSize);
+               }
                mpqOpenArc->MpqHeader.dwBlockTableSize++;
-               if (mpqOpenArc->lpBlockTable!=0) SFFree(mpqOpenArc->lpBlockTable);
+               if (mpqOpenArc->lpBlockTable) SFFree(mpqOpenArc->lpBlockTable);
                mpqOpenArc->lpBlockTable = lpnBlockTable;
+               mpqOpenArc->lpFileOffsetsHigh = (UInt16 *)(mpqOpenArc->lpBlockTable + mpqOpenArc->MpqHeader.dwBlockTableSize);
                IsNewBlockEntry = TRUE;
        }
        DWORD BlockIndex = mpqOpenArc->MpqHeader.dwBlockTableSize - 1;
@@ -2340,9 +2324,7 @@ BOOL SFMPQAPI WINAPI MpqAddFileFromBufferEx(MPQHANDLE hMPQ, LPVOID lpBuffer, DWO
        mpqOpenArc->lpBlockTable[BlockIndex].dwCompressedSize = fsz;
        mpqOpenArc->lpBlockTable[BlockIndex].dwFullSize = ucfsz;
        mpqOpenArc->lpBlockTable[BlockIndex].dwFlags = dwFlags|MAFA_EXISTS;
-       DWORD dwFileOffset = mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset;
-       SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart,FILE_BEGIN);
-       WriteFile(mpqOpenArc->hFile,&mpqOpenArc->MpqHeader,sizeof(MPQHEADER),&tsz,0);
+       MpqWriteHeaders(mpqOpenArc);
        if (dwFlags & MAFA_ENCRYPT) {
                DWORD dwCryptKey;
                if (dwFlags&MAFA_ENCRYPT) dwCryptKey = HashString(lpFileName,HASH_KEY);
@@ -2363,7 +2345,7 @@ BOOL SFMPQAPI WINAPI MpqAddFileFromBufferEx(MPQHANDLE hMPQ, LPVOID lpBuffer, DWO
                }
        }
        SFFree(dwBlkpt);
-       SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+dwFileOffset,FILE_BEGIN);
+       SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[BlockIndex]), FILE_BEGIN);
        WriteFile(mpqOpenArc->hFile,buffer,fsz,&tsz,0);
        SFFree(buffer);
        WriteHashTable(mpqOpenArc);
@@ -2440,7 +2422,7 @@ BOOL SFMPQAPI WINAPI MpqRenameAndSetFileLocale(MPQHANDLE hMPQ, LPCSTR lpcOldFile
                        DWORD HeaderLength=0;
                        if (memcmp(&mpqOpenArc->MpqHeader.dwMPQID,ID_BN3,4)==0)
                        {
-                               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset,FILE_BEGIN);
+                               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[BlockIndex]), FILE_BEGIN);
                                ReadFile(mpqOpenArc->hFile,&HeaderLength,4,&tsz,0);
 
                        }
@@ -2455,7 +2437,7 @@ BOOL SFMPQAPI WINAPI MpqRenameAndSetFileLocale(MPQHANDLE hMPQ, LPCSTR lpcOldFile
                        DWORD i;
                        if ((mpqOpenArc->lpBlockTable[BlockIndex].dwFlags & MAFA_COMPRESS)==MAFA_COMPRESS || (mpqOpenArc->lpBlockTable[BlockIndex].dwFlags & MAFA_COMPRESS2)==MAFA_COMPRESS2)
                        {
-                               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset+HeaderLength,FILE_BEGIN);
+                               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[BlockIndex]) + HeaderLength, FILE_BEGIN);
                                ReadFile(mpqOpenArc->hFile,dwBlockPtrTable,(TotalBlocks+1)*4,&tsz,0);
                                DecryptData((LPBYTE)dwBlockPtrTable,(TotalBlocks+1)*4,dwOldCryptKey-1);
                                char *EncryptedTable = (char *)SFAlloc((TotalBlocks+1)*4);
@@ -2465,7 +2447,7 @@ BOOL SFMPQAPI WINAPI MpqRenameAndSetFileLocale(MPQHANDLE hMPQ, LPCSTR lpcOldFile
                                }
                                memcpy(EncryptedTable,dwBlockPtrTable,(TotalBlocks+1)*4);
                                EncryptData((LPBYTE)EncryptedTable,(TotalBlocks+1)*4,dwNewCryptKey-1);
-                               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset+HeaderLength,FILE_BEGIN);
+                               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[BlockIndex]) + HeaderLength, FILE_BEGIN);
                                WriteFile(mpqOpenArc->hFile,EncryptedTable,(TotalBlocks+1)*4,&tsz,0);
                                SFFree(EncryptedTable);
                        }
@@ -2479,16 +2461,16 @@ BOOL SFMPQAPI WINAPI MpqRenameAndSetFileLocale(MPQHANDLE hMPQ, LPCSTR lpcOldFile
                        char *blkBuffer = (char *)SFAlloc(blockSize);
                        if (blkBuffer==0) {
                                EncryptData((LPBYTE)dwBlockPtrTable,(TotalBlocks+1)*4,dwOldCryptKey-1);
-                               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset+HeaderLength,FILE_BEGIN);
+                               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[BlockIndex]) + HeaderLength, FILE_BEGIN);
                                WriteFile(mpqOpenArc->hFile,dwBlockPtrTable,(TotalBlocks+1)*4,&tsz,0);
                                SFFree(dwBlockPtrTable);
                                return FALSE;
                        }
                        for (i=0;i<TotalBlocks;i++) {
-                               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset+HeaderLength+dwBlockPtrTable[i],FILE_BEGIN);
+                               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[BlockIndex]) + HeaderLength + dwBlockPtrTable[i], FILE_BEGIN);
                                if (ReadFile(mpqOpenArc->hFile,blkBuffer,dwBlockPtrTable[i+1]-dwBlockPtrTable[i],&tsz,0)==0) {
                                        EncryptData((LPBYTE)dwBlockPtrTable,(TotalBlocks+1)*4,dwOldCryptKey-1);
-                                       SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset+HeaderLength,FILE_BEGIN);
+                                       SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[BlockIndex]) + HeaderLength, FILE_BEGIN);
                                        WriteFile(mpqOpenArc->hFile,dwBlockPtrTable,(TotalBlocks+1)*4,&tsz,0);
                                        SFFree(dwBlockPtrTable);
                                        SFFree(blkBuffer);
@@ -2496,7 +2478,7 @@ BOOL SFMPQAPI WINAPI MpqRenameAndSetFileLocale(MPQHANDLE hMPQ, LPCSTR lpcOldFile
                                }
                                DecryptData((LPBYTE)blkBuffer,dwBlockPtrTable[i+1]-dwBlockPtrTable[i],dwOldCryptKey+i);
                                EncryptData((LPBYTE)blkBuffer,dwBlockPtrTable[i+1]-dwBlockPtrTable[i],dwNewCryptKey+i);
-                               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset+HeaderLength+dwBlockPtrTable[i],FILE_BEGIN);
+                               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[BlockIndex].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[BlockIndex]) + HeaderLength + dwBlockPtrTable[i], FILE_BEGIN);
                                WriteFile(mpqOpenArc->hFile,blkBuffer,dwBlockPtrTable[i+1]-dwBlockPtrTable[i],&tsz,0);
                        }
                        SFFree(dwBlockPtrTable);
@@ -2572,17 +2554,19 @@ BOOL SFMPQAPI WINAPI MpqCompactArchive(MPQHANDLE hMPQ)
        char *lpFileName = (char *)NewAlloc.Alloc(strlen(mpqOpenArc->lpFileName)+13);
        sprintf(lpFileName,"%s.compact",mpqOpenArc->lpFileName);
        HANDLE hFile = CreateFile(lpFileName,GENERIC_READ|GENERIC_WRITE,0,0,CREATE_NEW,0,0);
-       DWORD i;
+       UInt64 i;
        if (hFile==INVALID_HANDLE_VALUE) {
-               for (i=0;i<10000;i++) {
-                       sprintf(lpFileName,"%s.compact.%04d",mpqOpenArc->lpFileName,i);
+               int filenum = 0;
+               for (filenum=0;filenum<10000;filenum++) {
+                       sprintf(lpFileName,"%s.compact.%04d",mpqOpenArc->lpFileName,filenum);
 
                        hFile = CreateFile(lpFileName,GENERIC_READ|GENERIC_WRITE,0,0,CREATE_NEW,0,0);
                        if (hFile!=INVALID_HANDLE_VALUE) break;
                }
-               if (i==10000) return FALSE;
+               if (filenum==10000) return FALSE;
        }
-       DWORD dwLastOffset = sizeof(MPQHEADER),tsz;
+       UInt64 qwLastOffset = mpqOpenArc->dwHeaderSize;
+       DWORD tsz;
        char *buffer = (char *)SFAlloc(65536);
        if (buffer==0) {
                CloseHandle(hFile);
@@ -2596,7 +2580,8 @@ BOOL SFMPQAPI WINAPI MpqCompactArchive(MPQHANDLE hMPQ)
                DeleteFile(lpFileName);
                return FALSE;
        }
-       BLOCKTABLEENTRY *lpBlockTable = (BLOCKTABLEENTRY *)SFAlloc(sizeof(BLOCKTABLEENTRY) * mpqOpenArc->MpqHeader.dwBlockTableSize);
+       BLOCKTABLEENTRY *lpBlockTable = (BLOCKTABLEENTRY *)SFAlloc((sizeof(BLOCKTABLEENTRY) + sizeof(UInt16)) * mpqOpenArc->MpqHeader.dwBlockTableSize);
+       UInt16 *lpdwFileOffsetsHigh = (UInt16 *)(lpBlockTable + mpqOpenArc->MpqHeader.dwBlockTableSize);
        if(mpqOpenArc->lpBlockTable!=0) {
                if (lpBlockTable==0) {
                        SFFree(lpHashTable);
@@ -2615,15 +2600,15 @@ BOOL SFMPQAPI WINAPI MpqCompactArchive(MPQHANDLE hMPQ)
                }
                if (j<mpqOpenArc->MpqHeader.dwHashTableSize) {
                        memcpy(&lpBlockTable[i-nBlkOffset],&mpqOpenArc->lpBlockTable[i],sizeof(BLOCKTABLEENTRY));
-                       lpBlockTable[i-nBlkOffset].dwFileOffset = dwLastOffset;
-                       dwLastOffset += mpqOpenArc->lpBlockTable[i].dwCompressedSize;
+                       SplitUInt64(lpBlockTable[i-nBlkOffset].dwFileOffset, lpdwFileOffsetsHigh[i-nBlkOffset], qwLastOffset);
+                       qwLastOffset += mpqOpenArc->lpBlockTable[i].dwCompressedSize;
                        DWORD dwWritten=FALSE;
                        if (mpqOpenArc->lpBlockTable[i].dwFlags&MAFA_ENCRYPT && mpqOpenArc->lpBlockTable[i].dwFlags&MAFA_MODCRYPTKEY && (mpqOpenArc->lpBlockTable[i].dwFlags&MAFA_COMPRESS || mpqOpenArc->lpBlockTable[i].dwFlags&MAFA_COMPRESS2))
                        {
                                DWORD HeaderLength=0;
                                if (memcmp(&mpqOpenArc->MpqHeader.dwMPQID,ID_BN3,4)==0)
                                {
-                                       SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[i].dwFileOffset,FILE_BEGIN);
+                                       SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[i].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[i]), FILE_BEGIN);
                                        ReadFile(mpqOpenArc->hFile,&HeaderLength,4,&tsz,0);
                                }
                                DWORD blockSize = 512 << mpqOpenArc->MpqHeader.wBlockSize;
@@ -2639,7 +2624,7 @@ BOOL SFMPQAPI WINAPI MpqCompactArchive(MPQHANDLE hMPQ)
                                        DeleteFile(lpFileName);
                                        return FALSE;
                                }
-                               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[i].dwFileOffset+HeaderLength,FILE_BEGIN);
+                               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[i].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[i]) + HeaderLength, FILE_BEGIN);
                                ReadFile(mpqOpenArc->hFile,dwBlockPtrTable,(TotalBlocks+1)*4,&tsz,0);
                                DWORD dwOldCryptKey = DetectFileSeed(dwBlockPtrTable,(TotalBlocks+1)*4,blockSize);
                                DWORD dwNewCryptKey = (dwOldCryptKey ^ mpqOpenArc->lpBlockTable[i].dwFullSize) - mpqOpenArc->lpBlockTable[i].dwFileOffset;
@@ -2725,7 +2710,7 @@ BOOL SFMPQAPI WINAPI MpqCompactArchive(MPQHANDLE hMPQ)
                                        }
                                        memcpy(EncryptedTable,dwBlockPtrTable,(TotalBlocks+1)*4);
                                        EncryptData((LPBYTE)EncryptedTable,(TotalBlocks+1)*4,dwNewCryptKey-1);
-                                       SFSetFilePointer(hFile,lpBlockTable[i-nBlkOffset].dwFileOffset+HeaderLength,FILE_BEGIN);
+                                       SFSetFilePointer(hFile, MakeUInt64(lpBlockTable[i-nBlkOffset].dwFileOffset, lpdwFileOffsetsHigh[i-nBlkOffset]) + HeaderLength, FILE_BEGIN);
                                        WriteFile(hFile,EncryptedTable,(TotalBlocks+1)*4,&tsz,0);
                                        SFFree(EncryptedTable);
                                        char *blkBuffer = (char *)SFAlloc(blockSize);
@@ -2739,7 +2724,7 @@ BOOL SFMPQAPI WINAPI MpqCompactArchive(MPQHANDLE hMPQ)
                                                return FALSE;
                                        }
                                        for (DWORD k=0;k<TotalBlocks;k++) {
-                                               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[i].dwFileOffset+HeaderLength+dwBlockPtrTable[k],FILE_BEGIN);
+                                               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[i].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[i]) + HeaderLength + dwBlockPtrTable[k], FILE_BEGIN);
                                                if (ReadFile(mpqOpenArc->hFile,blkBuffer,dwBlockPtrTable[k+1]-dwBlockPtrTable[k],&tsz,0)==0) {
                                                        SFFree(dwBlockPtrTable);
                                                        SFFree(blkBuffer);
@@ -2752,7 +2737,7 @@ BOOL SFMPQAPI WINAPI MpqCompactArchive(MPQHANDLE hMPQ)
                                                }
                                                DecryptData((LPBYTE)blkBuffer,dwBlockPtrTable[k+1]-dwBlockPtrTable[k],dwOldCryptKey+k);
                                                EncryptData((LPBYTE)blkBuffer,dwBlockPtrTable[k+1]-dwBlockPtrTable[k],dwNewCryptKey+k);
-                                               SFSetFilePointer(hFile,lpBlockTable[i-nBlkOffset].dwFileOffset+HeaderLength+dwBlockPtrTable[k],FILE_BEGIN);
+                                               SFSetFilePointer(hFile, MakeUInt64(lpBlockTable[i-nBlkOffset].dwFileOffset, lpdwFileOffsetsHigh[i-nBlkOffset]) + HeaderLength + dwBlockPtrTable[k], FILE_BEGIN);
                                                WriteFile(hFile,blkBuffer,dwBlockPtrTable[k+1]-dwBlockPtrTable[k],&tsz,0);
                                        }
                                        SFFree(blkBuffer);
@@ -2766,7 +2751,7 @@ BOOL SFMPQAPI WINAPI MpqCompactArchive(MPQHANDLE hMPQ)
                                if (memcmp(&mpqOpenArc->MpqHeader.dwMPQID,ID_BN3,4)==0)
 
                                {
-                                       SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[i].dwFileOffset,FILE_BEGIN);
+                                       SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[i].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[i]), FILE_BEGIN);
                                        ReadFile(mpqOpenArc->hFile,&HeaderLength,4,&tsz,0);
                                }
                                DWORD blockSize = 512 << mpqOpenArc->MpqHeader.wBlockSize;
@@ -2851,7 +2836,7 @@ BOOL SFMPQAPI WINAPI MpqCompactArchive(MPQHANDLE hMPQ)
                                                return FALSE;
                                        }
                                        for (DWORD k=0;k<mpqOpenArc->lpBlockTable[i].dwFullSize;k+=blockSize) {
-                                               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[i].dwFileOffset+HeaderLength+k,FILE_BEGIN);
+                                               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[i].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[i]) + HeaderLength + k, FILE_BEGIN);
                                                if (k+blockSize>mpqOpenArc->lpBlockTable[i].dwFullSize) blockSize = mpqOpenArc->lpBlockTable[i].dwFullSize % blockSize;
                                                if (ReadFile(mpqOpenArc->hFile,blkBuffer,blockSize,&tsz,0)==0) {
                                                        SFFree(blkBuffer);
@@ -2865,7 +2850,7 @@ BOOL SFMPQAPI WINAPI MpqCompactArchive(MPQHANDLE hMPQ)
                                                }
                                                DecryptData((LPBYTE)blkBuffer,blockSize,dwOldCryptKey+k);
                                                EncryptData((LPBYTE)blkBuffer,blockSize,dwNewCryptKey+k);
-                                               SFSetFilePointer(hFile,lpBlockTable[i-nBlkOffset].dwFileOffset+HeaderLength+k,FILE_BEGIN);
+                                               SFSetFilePointer(hFile, MakeUInt64(lpBlockTable[i-nBlkOffset].dwFileOffset, lpdwFileOffsetsHigh[i-nBlkOffset]) + HeaderLength + k, FILE_BEGIN);
                                                WriteFile(hFile,blkBuffer,blockSize,&tsz,0);
                                        }
                                        SFFree(blkBuffer);
@@ -2875,8 +2860,8 @@ BOOL SFMPQAPI WINAPI MpqCompactArchive(MPQHANDLE hMPQ)
                        if (dwWritten==FALSE) {
                                ReadSize = 65536;
                                for (j=0;j<mpqOpenArc->lpBlockTable[i].dwCompressedSize;j+=65536) {
-                                       SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[i].dwFileOffset+j,FILE_BEGIN);
-                                       SFSetFilePointer(hFile,lpBlockTable[i-nBlkOffset].dwFileOffset+j,FILE_BEGIN);
+                                       SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[i].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[i]) + j, FILE_BEGIN);
+                                       SFSetFilePointer(hFile, MakeUInt64(lpBlockTable[i-nBlkOffset].dwFileOffset, lpdwFileOffsetsHigh[i-nBlkOffset]) + j, FILE_BEGIN);
                                        if (j+65536>mpqOpenArc->lpBlockTable[i].dwCompressedSize) ReadSize = mpqOpenArc->lpBlockTable[i].dwCompressedSize-j;
                                        if (ReadFile(mpqOpenArc->hFile,buffer,ReadSize,&tsz,0)==0) {
                                                SFFree(lpBlockTable);
@@ -2906,35 +2891,40 @@ BOOL SFMPQAPI WINAPI MpqCompactArchive(MPQHANDLE hMPQ)
                }
        }
        mpqOpenArc->MpqHeader.dwBlockTableSize -= nBlkOffset;
-       mpqOpenArc->MpqHeader.dwHashTableOffset = dwLastOffset;
-       dwLastOffset += mpqOpenArc->MpqHeader.dwHashTableSize * sizeof(HASHTABLEENTRY);
-       mpqOpenArc->MpqHeader.dwBlockTableOffset = dwLastOffset;
-       dwLastOffset += mpqOpenArc->MpqHeader.dwBlockTableSize * sizeof(BLOCKTABLEENTRY);
-       mpqOpenArc->MpqHeader.dwMPQSize = dwLastOffset;
+       SplitUInt64(mpqOpenArc->MpqHeader.dwHashTableOffset, mpqOpenArc->MpqHeader_Ex.wHashTableOffsetHigh, qwLastOffset);
+       qwLastOffset += mpqOpenArc->MpqHeader.dwHashTableSize * sizeof(HASHTABLEENTRY);
+       SplitUInt64(mpqOpenArc->MpqHeader.dwBlockTableOffset, mpqOpenArc->MpqHeader_Ex.wBlockTableOffsetHigh, qwLastOffset);
+       qwLastOffset += mpqOpenArc->MpqHeader.dwBlockTableSize * sizeof(BLOCKTABLEENTRY);
+       if (mpqOpenArc->MpqHeader_Ex.qwExtendedBlockOffsetTable) {
+               mpqOpenArc->MpqHeader_Ex.qwExtendedBlockOffsetTable = qwLastOffset;
+               qwLastOffset += mpqOpenArc->MpqHeader.dwBlockTableSize * sizeof(UInt16);
+       }
+       mpqOpenArc->MpqHeader.dwMPQSize = (UInt32)qwLastOffset;
        SFFree(mpqOpenArc->lpHashTable);
        mpqOpenArc->lpHashTable = lpHashTable;
        if(mpqOpenArc->lpBlockTable!=0) {
                SFFree(mpqOpenArc->lpBlockTable);
-               mpqOpenArc->lpBlockTable = (BLOCKTABLEENTRY *)SFAlloc(mpqOpenArc->MpqHeader.dwBlockTableSize * sizeof(BLOCKTABLEENTRY));
+               mpqOpenArc->lpBlockTable = (BLOCKTABLEENTRY *)SFAlloc(mpqOpenArc->MpqHeader.dwBlockTableSize * (sizeof(BLOCKTABLEENTRY) + sizeof(UInt16)));
+               mpqOpenArc->lpFileOffsetsHigh = (UInt16 *)(mpqOpenArc->lpBlockTable + mpqOpenArc->MpqHeader.dwBlockTableSize);
                if (mpqOpenArc->lpBlockTable==0) {
                        mpqOpenArc->lpBlockTable = lpBlockTable;
+                       mpqOpenArc->lpFileOffsetsHigh = lpdwFileOffsetsHigh;
                }
                else {
-                       memcpy(mpqOpenArc->lpBlockTable,lpBlockTable,mpqOpenArc->MpqHeader.dwBlockTableSize * sizeof(BLOCKTABLEENTRY));
+                       memcpy(mpqOpenArc->lpBlockTable, lpBlockTable, mpqOpenArc->MpqHeader.dwBlockTableSize * (sizeof(BLOCKTABLEENTRY) + sizeof(UInt16)));
                        SFFree(lpBlockTable);
                }
        }
-       SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+dwLastOffset,FILE_BEGIN);
+       SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + qwLastOffset, FILE_BEGIN);
        SetEndOfFile(mpqOpenArc->hFile);
-       SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart,FILE_BEGIN);
-       mpqOpenArc->MpqHeader.dwHeaderSize = sizeof(MPQHEADER);
-       WriteFile(mpqOpenArc->hFile,&mpqOpenArc->MpqHeader,sizeof(MPQHEADER),&tsz,0);
-       dwLastOffset = sizeof(MPQHEADER);
+       MpqWriteHeaders(mpqOpenArc);
+       mpqOpenArc->MpqHeader.dwHeaderSize = mpqOpenArc->dwHeaderSize;
+       qwLastOffset = mpqOpenArc->dwHeaderSize;
        ReadSize = 65536;
-       for (i=dwLastOffset;i<mpqOpenArc->MpqHeader.dwHashTableOffset;i+=65536) {
-               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+i,FILE_BEGIN);
+       for (i=qwLastOffset;i<MakeUInt64(mpqOpenArc->MpqHeader.dwHashTableOffset, mpqOpenArc->MpqHeader_Ex.wHashTableOffsetHigh);i+=65536) {
+               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->qwMPQStart+i,FILE_BEGIN);
                SFSetFilePointer(hFile,i,FILE_BEGIN);
-               if (i+65536>mpqOpenArc->MpqHeader.dwHashTableOffset) ReadSize = mpqOpenArc->MpqHeader.dwHashTableOffset-i;
+               if (i+65536>MakeUInt64(mpqOpenArc->MpqHeader.dwHashTableOffset, mpqOpenArc->MpqHeader_Ex.wHashTableOffsetHigh)) ReadSize = MakeUInt64(mpqOpenArc->MpqHeader.dwHashTableOffset, mpqOpenArc->MpqHeader_Ex.wHashTableOffsetHigh)-i;
                ReadFile(hFile,buffer,ReadSize,&tsz,0);
                WriteFile(mpqOpenArc->hFile,buffer,ReadSize,&tsz,0);
        }
@@ -2975,13 +2965,37 @@ BOOL SFMPQAPI WINAPI MpqSetFileLocale(MPQHANDLE hMPQ, LPCSTR lpFileName, LCID nO
        return TRUE;
 }
 
+BOOL SFMPQAPI WINAPI MpqCreateArchiveVersion(WORD wVersion)
+{
+       if (wVersion > 1) return FALSE;
+
+       wCreationVersion = wVersion;
+       return TRUE;
+}
+
 DWORD SFMPQAPI WINAPI SFileFindMpqHeader(HANDLE hFile)
 {
        if (hFile == INVALID_HANDLE_VALUE) {
                SetLastError(ERROR_INVALID_PARAMETER);
                return 0xFFFFFFFF;
        }
-       DWORD FileLen = SFGetFileSize(hFile);
+
+       DWORD dwHandleType = GetHandleType((MPQHANDLE)hFile);
+       if (dwHandleType == SFILE_TYPE_FILE) {
+               MPQFILE *mpqOpenFile = (MPQFILE *)hFile;
+               if (mpqOpenFile->hFile == INVALID_HANDLE_VALUE) {
+                       return mpqOpenFile->lpParentArc->qwMPQStart;
+               }
+               else {
+                       hFile = mpqOpenFile->hFile;
+               }
+       }
+       else if (dwHandleType == SFILE_TYPE_MPQ) {
+               return ((MPQARCHIVE *)hFile)->qwMPQStart;
+       }
+
+       UInt64 FileLen = SFGetFileSize(hFile);
+       if (FileLen >= 0xFFFFFFFF) FileLen = 0xFFFFFFFE;
        char pbuf[sizeof(MPQHEADER)];
        DWORD tsz;
        for (DWORD i=0;i<FileLen;i+=512)
@@ -3003,20 +3017,23 @@ DWORD SFMPQAPI WINAPI SFileFindMpqHeader(HANDLE hFile)
        return 0xFFFFFFFF;
 }
 
-DWORD WINAPI FindMpqHeaderAtLocation(HANDLE hFile, DWORD dwStart, DWORD dwLength)
+UInt64 WINAPI SFileFindMpqHeaderEx(HANDLE hFile, UInt64 qwStart, UInt64 qwLength)
 {
        if (hFile == INVALID_HANDLE_VALUE) {
                SetLastError(ERROR_INVALID_PARAMETER);
-               return 0xFFFFFFFF;
+               return (UInt64)-1;
        }
+       UInt64 FileLen = SFGetFileSize(hFile);
+       if (FileLen == (UInt64)-1 || qwStart >= FileLen || qwStart + qwLength > FileLen) return (UInt64)-1;
+       if (qwLength == 0) qwLength = FileLen - qwStart;
        char pbuf[sizeof(MPQHEADER)];
        DWORD tsz;
-       for (DWORD i=dwStart;i<dwStart+dwLength;i+=512)
+       for (UInt64 i=qwStart;i<qwStart+qwLength && i<FileLen;i+=512)
        {
                SFSetFilePointer(hFile,i,FILE_BEGIN);
-               if (ReadFile(hFile,pbuf,sizeof(MPQHEADER),&tsz,0)==0) return 0xFFFFFFFF;
-               if (i+tsz>dwStart+dwLength) tsz = (dwStart+dwLength)-i;
-               if (tsz<sizeof(MPQHEADER)) return 0xFFFFFFFF;
+               if (ReadFile(hFile,pbuf,sizeof(MPQHEADER),&tsz,0)==0) return (UInt64)-1;
+               if (i+tsz>qwStart+qwLength) tsz = (qwStart+qwLength)-i;
+               if (tsz<sizeof(MPQHEADER)) return (UInt64)-1;
                if (memcmp(pbuf,ID_MPQ,4)==0 || memcmp(pbuf,ID_BN3,4)==0)
                {
                        // Storm no longer does this, so mpq api shouldn't either
@@ -3028,7 +3045,7 @@ DWORD WINAPI FindMpqHeaderAtLocation(HANDLE hFile, DWORD dwStart, DWORD dwLength
                        return i;
                }
        }
-       return 0xFFFFFFFF;
+       return (UInt64)-1;
 }
 
 DWORD GetFullPath(LPCSTR lpFileName, char *lpBuffer, DWORD dwBufferLength)
@@ -3467,7 +3484,7 @@ DWORD DetectFileSeedEx(MPQARCHIVE * mpqOpenArc, HASHTABLEENTRY * lpHashEntry, LP
                        DWORD HeaderLength=0,tsz;
                        if (memcmp(&mpqOpenArc->MpqHeader.dwMPQID,ID_BN3,4)==0)
                        {
-                               SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[dwBlockIndex].dwFileOffset,FILE_BEGIN);
+                               SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[dwBlockIndex].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[dwBlockIndex]), FILE_BEGIN);
                                ReadFile(mpqOpenArc->hFile,&HeaderLength,4,&tsz,0);
                        }
                        DWORD blockSize = 512 << mpqOpenArc->MpqHeader.wBlockSize;
@@ -3477,7 +3494,7 @@ DWORD DetectFileSeedEx(MPQARCHIVE * mpqOpenArc, HASHTABLEENTRY * lpHashEntry, LP
                        DWORD *dwBlockPtrTable = (DWORD *)SFAlloc((TotalBlocks+1)*4);
                        if (dwBlockPtrTable==0)
                                return 0;
-                       SFSetFilePointer(mpqOpenArc->hFile,mpqOpenArc->dwMPQStart+mpqOpenArc->lpBlockTable[dwBlockIndex].dwFileOffset+HeaderLength,FILE_BEGIN);
+                       SFSetFilePointer(mpqOpenArc->hFile, mpqOpenArc->qwMPQStart + MakeUInt64(mpqOpenArc->lpBlockTable[dwBlockIndex].dwFileOffset, mpqOpenArc->lpFileOffsetsHigh[dwBlockIndex]) + HeaderLength, FILE_BEGIN);
                        ReadFile(mpqOpenArc->hFile,dwBlockPtrTable,(TotalBlocks+1)*4,&tsz,0);
                        dwCryptKey = DetectFileSeed(dwBlockPtrTable,(TotalBlocks+1)*4,blockSize);
 
index cc448f8..b2508a0 100644 (file)
@@ -27,6 +27,7 @@ EXPORTS
        MpqRenameAndSetFileLocale=MpqRenameAndSetFileLocale @28
        MpqDeleteFileWithLocale=MpqDeleteFileWithLocale @29
        MpqOpenArchiveForUpdateEx=MpqOpenArchiveForUpdateEx @30
+       MpqCreateArchiveVersion=MpqCreateArchiveVersion @31
 
 ;Lmpqapi ordinals
        SFOpenArchive=SFileOpenArchive @32 NONAME
index dd6b01c..4facc42 100644 (file)
@@ -307,9 +307,8 @@ struct FILELISTENTRY {
        char szFileName[260];
 };
 
-struct MPQARCHIVE;
-struct MPQFILE;
 struct MPQHEADER;
+struct MPQHEADER_EX;
 struct BLOCKTABLEENTRY;
 struct HASHTABLEENTRY;
 
@@ -317,7 +316,7 @@ struct MPQHEADER {
        DWORD dwMPQID; //"MPQ\x1A" for mpq's, "BN3\x1A" for bncache.dat
        DWORD dwHeaderSize; // Size of this header
        DWORD dwMPQSize; //The size of the mpq archive
-       WORD wUnused0C; // Seems to always be 0
+       WORD wVersion; // 0 for original format, 1 for large archive
        WORD wBlockSize; // Size of blocks in files equals 512 << wBlockSize
        DWORD dwHashTableOffset; // Offset to hash table
        DWORD dwBlockTableOffset; // Offset to block table
@@ -325,67 +324,13 @@ struct MPQHEADER {
        DWORD dwBlockTableSize; // Number of entries in block table
 };
 
-#include <poppack.h>
-
-//Archive handles may be typecasted to this struct so you can access
-//some of the archive's properties and the decrypted hash table and
-//block table directly.  This struct is based on Storm's internal
-//struct for archive handles.
-struct MPQARCHIVE {
-       // Arranged according to priority with lowest priority first
-       MPQARCHIVE * lpNextArc; //0// Pointer to the next MPQARCHIVE struct. Pointer to addresses of first and last archives if last archive
-       MPQARCHIVE * lpPrevArc; //4// Pointer to the previous MPQARCHIVE struct. 0xEAFC5E23 if first archive
-       char szFileName[260]; //8// Filename of the archive
-       HANDLE hFile; //10C// The archive's file handle
-       DWORD dwFlags1; //110// Some flags, bit 0 seems to be set when opening an archive from a hard drive if bit 1 in the flags for SFileOpenArchive is set, bit 1 (0 based) seems to be set when opening an archive from a CD
-       DWORD dwPriority; //114// Priority of the archive set when calling SFileOpenArchive
-       MPQFILE * lpLastReadFile; //118// Pointer to the last read file's MPQFILE struct. This is cleared when finished reading a block
-       DWORD dwUnk; //11C// Seems to always be 0
-       DWORD dwBlockSize; //120// Size of file blocks in bytes
-       BYTE * lpLastReadBlock; //124// Pointer to the read buffer for archive. This is cleared when finished reading a block
-       DWORD dwBufferSize; //128// Size of the read buffer for archive. This is cleared when finished reading a block
-       DWORD dwMPQStart; //12C// The starting offset of the archive
-       DWORD dwMPQEnd; //130// The ending offset of the archive
-       MPQHEADER * lpMPQHeader; //134// Pointer to the archive header
-       BLOCKTABLEENTRY * lpBlockTable; //138// Pointer to the start of the block table
-       HASHTABLEENTRY * lpHashTable; //13C// Pointer to the start of the hash table
-       DWORD dwReadOffset; //140// Offset to the data for a file
-       DWORD dwRefCount; //144// Count of references to this open archive.  This is incremented for each file opened from the archive, and decremented for each file closed
-       // Extra struct members used by SFmpq
-       MPQHEADER MpqHeader;
-       DWORD dwFlags; //The only flags that should be changed are MOAU_MAINTAIN_LISTFILE and MOAU_MAINTAIN_ATTRIBUTES, changing any others can have unpredictable effects
-       LPSTR lpFileName;
-       DWORD dwExtraFlags;
-};
-
-//Handles to files in the archive may be typecasted to this struct
-//so you can access some of the file's properties directly.  This
-//struct is based on Storm's internal struct for file handles.
-struct MPQFILE {
-       MPQFILE * lpNextFile; //0// Pointer to the next MPQFILE struct. Pointer to addresses of first and last files if last file
-       MPQFILE * lpPrevFile; //4// Pointer to the previous MPQFILE struct. 0xEAFC5E13 if first file
-       char szFileName[260]; //8// Filename of the file
-       HANDLE hFile; //10C// Always INVALID_HANDLE_VALUE for files in MPQ archives. For files not in MPQ archives, this is the file handle for the file and the rest of this struct is filled with zeros except for dwRefCount
-       MPQARCHIVE * lpParentArc; //110// Pointer to the MPQARCHIVE struct of the archive in which the file is contained
-       BLOCKTABLEENTRY * lpBlockEntry; //114// Pointer to the file's block table entry
-       DWORD dwCryptKey; //118// Decryption key for the file
-       DWORD dwFilePointer; //11C// Position of file pointer in the file
-       DWORD dwUnk; //120// Seems to always be 0
-       DWORD dwBlockCount; //124// Number of blocks in file
-       DWORD * lpdwBlockOffsets; //128// Offsets to blocks in file. There are 1 more of these than the number of blocks. The values for this are set after the first read
-       DWORD dwReadStarted; //12C// Set to 1 after first read
-       BOOL bStreaming; //130// 1 when streaming a WAVE
-       BYTE * lpLastReadBlock; //134// Pointer to the read buffer for file. This starts at the position specified in the last SFileSetFilePointer call. This is cleared when SFileSetFilePointer is called or when finished reading the block
-       DWORD dwBytesRead; //138// Total bytes read from the current block in the open file. This is cleared when SFileSetFilePointer is called or when finished reading the block
-       DWORD dwBufferSize; //13C// Size of the read buffer for file. This is cleared when SFileSetFilePointer is called or when finished reading the block
-       DWORD dwRefCount; //140// Count of references to this open file
-       // Extra struct members used by SFmpq
-       HASHTABLEENTRY *lpHashEntry;
-       LPSTR lpFileName;
+// Large archive format only
+struct MPQHEADER_EX {
+       UINT64 qwExtendedBlockOffsetTable; // Offset to table containing upper 16 bits of block offsets
+       WORD wHashTableOffsetHigh; // High 16 bits of the hash table offset for large archives
+       WORD wBlockTableOffsetHigh; // High 16 bits of the block table offset for large archives
 };
 
-#include <pshpack1.h>
-
 struct BLOCKTABLEENTRY {
        DWORD dwFileOffset; // Offset to file
        DWORD dwCompressedSize; // Compressed size of file
@@ -452,6 +397,7 @@ BOOL      SFMPQAPI WINAPI MpqAddWaveFromBuffer(MPQHANDLE hMPQ, LPVOID lpBuffer,
 BOOL      SFMPQAPI WINAPI MpqRenameAndSetFileLocale(MPQHANDLE hMPQ, LPCSTR lpcOldFileName, LPCSTR lpcNewFileName, LCID nOldLocale, LCID nNewLocale);
 BOOL      SFMPQAPI WINAPI MpqDeleteFileWithLocale(MPQHANDLE hMPQ, LPCSTR lpFileName, LCID nLocale);
 BOOL      SFMPQAPI WINAPI MpqSetFileLocale(MPQHANDLE hMPQ, LPCSTR lpFileName, LCID nOldLocale, LCID nNewLocale);
+BOOL      SFMPQAPI WINAPI MpqCreateArchiveVersion(WORD wVersion);
 
 // These functions do nothing.  They are only provided for
 // compatibility with MPQ extractors that use storm.
index 2e6c6c2..5dce539 100644 (file)
                                RelativePath="SFmpqapi.h"\r
                                >\r
                        </File>\r
+                       <File\r
+                               RelativePath=".\SFmpqInternal.h"\r
+                               >\r
+                       </File>\r
                        <File\r
                                RelativePath=".\SFTypes.h"\r
                                >\r
index f377310..fb1f8df 100644 (file)
@@ -32,6 +32,7 @@ extern "C" {
 typedef uint8_t BYTE;
 typedef uint16_t WORD;
 typedef uint32_t DWORD;
+typedef uint64_t UINT64;
 typedef int16_t SHORT;
 typedef uint16_t USHORT;
 typedef DWORD LCID;