OpenSSL::X509::Extension#value

static VALUE
ossl_x509ext_get_value(VALUE obj)
{
    X509_EXTENSION *ext;
    BIO *out;
    VALUE ret;

    GetX509Ext(obj, ext);
    if (!(out = BIO_new(BIO_s_mem())))
        ossl_raise(eX509ExtError, NULL);
    if (!X509V3_EXT_print(out, ext, 0, 0))
        ASN1_STRING_print(out, (ASN1_STRING *)X509_EXTENSION_get_data(ext));
    ret = ossl_membio2str(out);

    return ret;
}