Function libpcapng_interface_description_block_write_with_options 

pub unsafe extern "C" fn libpcapng_interface_description_block_write_with_options(
    snaplen: u32,
    linktype: u16,
    opts: *const pcapng_option_t,
    nopt: usize,
    outbuf: *mut c_uchar,
) -> usize