static long nbiof_callback_ctrl(BIO *b, int cmd, void (*fp)())
static long nbiof_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
static long nbiof_callback_ctrl(BIO *b, int cmd, void (*fp)())	{	long ret=1;	if (b->next_bio == NULL) return(0);	switch (cmd)		{	default:		ret=BIO_callback_ctrl(b->next_bio,cmd,fp);		break;		}	return(ret);	}