I really, really doubt it's legal, or if it is not in a way that would be easily defendable in court. Disassembled code is not a clean room implementation, whic

I really, really doubt it's legal, or if it is not in a way that would be easily defendable in court. Disassembled code is not a clean room implementation, which is what's needed to reimplement e.g. GNU licensed code legally.