OpenSSL::Timestamp::TokenInfo#to_text

static VALUE
ossl_ts_token_info_to_text(VALUE self)
{
    TS_TST_INFO *info;
    BIO *out;

    GetTSTokenInfo(self, info);

    out = BIO_new(BIO_s_mem());
    if (!out) ossl_raise(eTimestampError, NULL);

    if (!TS_TST_INFO_print_bio(out, info)) {
        BIO_free(out);
        ossl_raise(eTimestampError, NULL);
    }

    return ossl_membio2str(out);
}