ENGINE *setup_engine_methods(const char *id, unsigned int methods, int debug);
# define setup_engine(e, debug) setup_engine_methods(e, (unsigned int)-1, debug)
void release_engine(ENGINE *e);
int init_engine(ENGINE *e);
int finish_engine(ENGINE *e);
char *make_engine_uri(ENGINE *e, const char *key_id, const char *desc);