How to copy certifivate from SSL_CTX to SSL object

[Kukosa, Tomas]

Hi,
 
is there any reasonable way how to copy certificate (and private key)
from SSL_CTX to SSL object if certificate in SSL_CTX is changed?
 
I would like to call something like:
SSL_use_certificate(ssl, SSL_get_certificate(ctx));
SSL_use_RSAPrivateKey(ssl, SSL_get_key(ctx));
but I can not find any function for obtaining certificate (and private
key) from SSL_CTX.
 
Is there any way?
 
Thanks in advance,
  Tomas