#[no_mangle]
pub unsafe extern "C" fn u_getsockopt_ocall(
    error: *mut c_int,
    sockfd: c_int,
    level: c_int,
    optname: c_int,
    optval: *mut c_void,
    optlen_in: socklen_t,
    optlen_out: *mut socklen_t
) -> c_int