SSL_CTX_add_session
LSSL_USED(SSL_CTX_add_session);
int SSL_CTX_add_session(SSL_CTX *s, SSL_SESSION *c);
(void) SSL_CTX_add_session(s->session_ctx, s->session);
SSL_CTX_add_session(s->session_ctx, sess);
LSSL_ALIAS(SSL_CTX_add_session);