Function renameat 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn renameat(
    old_dir: c_int,
    old_path: *const c_char,
    new_dir: c_int,
    new_path: *const c_char,
) -> c_int

See https://pubs.opengroup.org/onlinepubs/9799919799/functions/renameat.html.