Function libcoap_sys::coap_write_block_b_opt

pub unsafe extern "C" fn coap_write_block_b_opt(
    session: *mut coap_session_t,
    block: *mut coap_block_b_t,
    number: coap_option_num_t,
    pdu: *mut coap_pdu_t,
    data_length: usize
) -> c_int