OpenSSL::SSL::Session#to_pem

static VALUE ossl_ssl_session_to_pem(VALUE self)
{
        SSL_SESSION *ctx;
        BIO *out;

        GetSSLSession(self, ctx);

        if (!(out = BIO_new(BIO_s_mem()))) {
                ossl_raise(eSSLSession, "BIO_s_mem()");
        }

        if (!PEM_write_bio_SSL_SESSION(out, ctx)) {
                BIO_free(out);
                ossl_raise(eSSLSession, "SSL_SESSION_print()");
        }


        return ossl_membio2str(out);
}