Read info from header

[TimJTi]

Once validated, MCUboot (NuttX) is calling a boot_image function, passing the header size as a variable. I can see right after the magic bytes is the -L load address.

Can I also pick out the -v version text, -S slot size etc? Are they in repeatable, documented positions?

I'd like to use this metadata to assist in efficient booting of the image etc