sai.bt

//------------------------------------------------
//--- 010 Editor v10.0 Binary Template
//
//      File: 
//   Authors: Wunkolo
//   Version: 0.01
//   Purpose: Parsing decrypted .sai files
//  Category: 
// File Mask: 
//  ID Bytes: 
//   History: 
//------------------------------------------------

const uint32 PageSize = 0x1000;
const uint32 TableSpan = PageSize / 8;

uint NearestTableIndex(uint PageIndex)
{
	return (PageIndex / TableSpan) * TableSpan;
}
uint IsTableIndex(uint PageIndex)
{
	return (PageIndex % TableSpan) ? false : true;
}
uint IsDataIndex(uint PageIndex)
{
	return (PageIndex % TableSpan) ? true : false;
}

struct FATEntry
{
	enum <uchar> EntryType
	{
		Folder = 0x10,
		File = 0x80
	};

	uint32 Flags;
	char Name[32];
    uchar Pad1;
	uchar Pad2;
	EntryType Type;
	uchar Pad4;
	uint32 PageIndex;
	uint32 Size;
    FILETIME TimeStamp; // Windows FILETIME
	uint64 UnknownB;
};

union VirtualPage
{
    uchar  u8[PageSize];
    uint32 u32[PageSize / sizeof(uint32)];

    struct PageEntry
    {
        uint32 Checksum<format=hex>;
        uint32 NextPageIndex;
    } PageEntries[PageSize / sizeof(PageEntry)];
    FATEntry FATEntries[64];
};

//FileSize()
//int FSeek( int64 pos )

void ParseTable(int64 Offset)
{
    FSeek(Offset);
    VirtualPage CurTable<bgcolor=cLtBlue>;
    local uint i;
    local uint CurBlockIndex;
    local uint SpanStart;
    local uint SpanEnd;
    local uint NextPageIndex;
    local uint CurTableIndex;
    for( i = 0; i < PageSize / sizeof(PageEntry); ++i )
    {
        SpanStart = Offset + i * PageSize;
        SpanEnd = SpanStart + PageSize;
        FSeek(SpanStart);
        VirtualPage DataBlock<comment="SpanStart">;
        NextPageIndex = CurTable.PageEntries[i].NextPageIndex;
        if(CurTable.PageEntries[i].Checksum == 0) break;
        while( NextPageIndex != 0 )
        {
            CurTableIndex = NearestTableIndex(NextPageIndex);
            NextPageIndex = ReadUInt( CurTableIndex + NextPageIndex * 8 + 4);
            FSeek(NextPageIndex * PageSize);
            VirtualPage DataSegment;
        }
        //CurBlockIndex = CurPage.PageEntries[i].NextPageIndex;
        //DefinePages(i * PageSize);
    }
}

ParseTable(0);