OpenSSL::Timestamp::Request#to_text

static VALUE
ossl_ts_req_to_text(VALUE self)
{
    TS_REQ *req;
    BIO *out;

    GetTSRequest(self, req);

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

    if (!TS_REQ_print_bio(out, req)) {
        BIO_free(out);
        ossl_raise(eTimestampError, NULL);
    }

    return ossl_membio2str(out);
}