int uclient_read(struct uclient *cl, char *buf, int len);
int uclient_write(struct uclient *cl, char *buf, int len);
int uclient_request(struct uclient *cl);
int uclient_read(struct uclient *cl, char *buf, int len);
int uclient_write(struct uclient *cl, char *buf, int len);
int uclient_request(struct uclient *cl);