Comments on: Reverse engineering the cache files, part 3

By: Yann

Yann — Tue, 18 Aug 2009 22:51:43 +0000

@JamesM: The series of tuples preceding DBRows spell out the order and datatypes associated with each entry in the DBrow. I have a decoding table built up now (using ADO datatypes).

By: JamesM

JamesM — Tue, 18 Aug 2009 22:43:50 +0000

I think I’ve pretty much got as far as this in Java. If I know what I’m looking for I can pick out values from the unpacked DBRows – price seems to usually be at the start, while typeID always seems to be at 0×33 regardless of what’s happening around it. Everything else seems to move around… I can’t see anything obvious in the rest of the cache file that would indicate an ordering or indexing though. Any ideas?

By: Yann

Yann — Mon, 17 Aug 2009 02:42:12 +0000

No, I didn’t, not something I click on often. Will be fixed

By: Ulviirala Vauryndar

Ulviirala Vauryndar — Mon, 17 Aug 2009 02:24:11 +0000

Did you ever notice that at the link at the bottom of the blog that says “Newer posts” and “Older posts” are the wrong way around? Newer posts go back in time to older posts, and older posts goes to pages with newer posts?

I’m sorry, this was awkward

- Ulvi

By: Ethan

Ethan — Fri, 14 Aug 2009 06:55:07 +0000

Pulled this list out of the CRUDE library. Don’t know if it will be useful to you or not, but figured I’d pass it your way anyway.

public enum DBTYPEENUM
{
DBTYPE_ARRAY = 0×2000,
DBTYPE_BOOL = 11,
DBTYPE_BSTR = 8,
DBTYPE_BYREF = 0×4000,
DBTYPE_BYTES = 0×80,
DBTYPE_CY = 6,
DBTYPE_DATE = 7,
DBTYPE_DBDATE = 0×85,
DBTYPE_DBTIME = 0×86,
DBTYPE_DBTIMESTAMP = 0×87,
DBTYPE_DECIMAL = 14,
DBTYPE_EMPTY = 0,
DBTYPE_ERROR = 10,
DBTYPE_FILETIME = 0×40,
DBTYPE_GUID = 0×48,
DBTYPE_HCHAPTER = 0×88,
DBTYPE_I1 = 0×10,
DBTYPE_I2 = 2,
DBTYPE_I4 = 3,
DBTYPE_I8 = 20,
DBTYPE_IDISPATCH = 9,
DBTYPE_IUNKNOWN = 13,
DBTYPE_NULL = 1,
DBTYPE_NUMERIC = 0×83,
DBTYPE_PROPVARIANT = 0x8a,
DBTYPE_R4 = 4,
DBTYPE_R8 = 5,
DBTYPE_RESERVED = 0×8000,
DBTYPE_STR = 0×81,
DBTYPE_UDT = 0×84,
DBTYPE_UI1 = 0×11,
DBTYPE_UI2 = 0×12,
DBTYPE_UI4 = 0×13,
DBTYPE_UI8 = 0×15,
DBTYPE_VARIANT = 12,
DBTYPE_VARNUMERIC = 0x8b,
DBTYPE_VECTOR = 0×1000,
DBTYPE_WSTR = 130
}