+struct hturlinfo *parseurl(char *url);
+void freeurl(struct hturlinfo *ui);
+void freehtconn(struct htconn *cn);
+struct htconn *htconnect(struct hturlinfo *ui);
+int htpollflags(struct htconn *hc);
+int htprocess(struct htconn *hc, int pollflags);
+