Back when these functions were created, it was normal and expected for libc to store global state for a variety of things. Reentrancy wasn't really an issue th

Back when these functions were created, it was normal and expected for libc to store global state for a variety of things. Reentrancy wasn't really an issue that was considered then. (Though this particular API has an even weirder limitation: you can only create a single hash table at a time in your entire program!)