const char * sa_straddr(void *sa);
const char * sa_strport(void *sa);
int sa_port(void *sa);
+int sa_rfc1918(void *sa);
char *strfind(char *haystack, int hslen, const char *needle, int ndlen);
+int select_intr(int n, fd_set *r, fd_set *w, fd_set *e, struct timeval *t);
+
int uh_tcp_send(struct client *cl, const char *buf, int len);
int uh_tcp_peek(struct client *cl, char *buf, int len);
int uh_tcp_recv(struct client *cl, char *buf, int len);