if (cert ==  NULL) return 1;
int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key)	{	if (SSL_CTX_use_certificate(ctx,cert) <= 0)		{		BIO_printf(bio_err,"error setting certificate\n");		ERR_print_errors(bio_err);		return 0;		}	if (SSL_CTX_use_PrivateKey(ctx,key) <= 0)		{		BIO_printf(bio_err,"error setting private key\n");		ERR_print_errors(bio_err);		return 0;		}				/* Now we know that a key and cert have been set against		 * the SSL context */	if (!SSL_CTX_check_private_key(ctx))		{		BIO_printf(bio_err,"Private key does not match the certificate public key\n");		return 0;		}	return 1;	}