-int recvline(int s, char *buf);
-int expect(int s, int match, char *buf);
-int handleintr(int);
-int hostaddr(char *name, struct sockaddr_in *addr);
-int hostconnect(struct sockaddr_in *addr);
-int hostport(char *name, struct sockaddr_in *addr);
-int login(int s, char *uname, char *cname, char *cpass, int kill_proc, int);
-void saveargv(int ac, char **src, char **dst);
-void sendcmd(int s, char *cmd, char *arg);
-int sendeof(int sock);
-void servercmd(struct ioqueue *ioq, FILE *auxfi);
-int serverio(int s, struct ioqueue *ioq);
-int termio(int fd, int sock, FILE *auxfi);