Function botan_sys::botan_x509_cert_get_subject_dn

pub unsafe extern "C" fn botan_x509_cert_get_subject_dn(
    cert: botan_x509_cert_t,
    key: *const c_char,
    index: usize,
    out: *mut u8,
    out_len: *mut usize,
) -> c_int