long ssl2_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
long ssl2_callback_ctrl(SSL *s,int cmd, void (*fp)());
long ssl2_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)());
long ssl2_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
long ssl2_callback_ctrl(SSL *s,int cmd, void (*fp)());
long ssl2_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)());