Function io_uring_prep_cmd_sock 

pub unsafe extern "C" fn io_uring_prep_cmd_sock(
    sqe: *mut io_uring_sqe,
    cmd_op: c_int,
    fd: c_int,
    level: c_int,
    optname: c_int,
    optval: *mut c_void,
    optlen: c_int,
)