... as in, "this is actually a quite nice and readable old-style ANSI C codebase". Seriously, the downvotes...

Yeah. I made a mod many years ago (it made you the "drunken master" if you were master level in unarmed combat and drank potions of booze). It was really, really easy. I have rarely worked on a code base of that size that was so easy to understand and modify.

If you don't want downvotes, put some text in your comment that is not nonsense-for-the-sake-of-nonsense.

Maybe you were downvoted because that is K&R style, not ANSI style. ANSI requires the type declaration next to the name in the parameter list.

ANSI still allows K&R style, refer to the grammar in section 6.7.6 and the semantics in 6.7.6.3 (of C11).