Type
|
Field
|
Description
|
|---|---|---|
DWORD
|
lSignature
|
“Magic” signature for physical
metadata, currently 0x424A5342, or, read as characters, BSJB—the initials of four “founding fathers” Brian Harry, Susan Radke-Sproull, Jason Zander, and Bill Evans (I’d better make that “founders;” Susan might object to be called a father), who started the runtime development in 1998. |
WORD
|
iMajorVer
|
Major version (1)
|
WORD
|
iMinorVer
|
Minor version (1)
|
DWORD
|
iExtraData
|
Reserved; set to 0
|
DWORD
|
iVersionString
|
Length of the version string
|
BYTE[]
|
pVersion
|
Version string
|
So, where does it start? If we look back in the CLRHeader, we see the Metatadata field which is an RVA. Let's see if we can get some data out. From the beginning, things are not going to be easy. The iVersionString gives the length of the pVersion which means that a simple deserialize is out. I am going to create the top 'fixed' portion of the header as normal and then deal with the pVersion string separately. That means that I am going to use an intermediate structure and implement the actual GeneralMetatadataHeader as a class. Here is my implementation:
Note that the constructor for the type actually reads in the variable length string. I might go back and implement the CodeViewHeader in a similar way as this is actually cleaner than I was expecting. That is enough for tonight, I will get into the actual Metadata streams in the next post.
Keep your code clean!
