static void x509_append(const br_x509_class **ctx, const unsigned char *buf,
                        size_t len)
{
  struct x509_context *x509 = (struct x509_context *)ctx;

  x509->minimal.vtable->append(&x509->minimal.vtable, buf, len);
}
static void x509_append(const br_x509_class **ctx, const unsigned char *buf,
                        size_t len)
{
  struct x509_context *x509 = (struct x509_context *)ctx;

  x509->minimal.vtable->append(&x509->minimal.vtable, buf, len);
}