-record_login(pid_t pid, const char *ttyname, const char *user, uid_t uid,
- const char *host, struct sockaddr *addr);
+record_login(pid_t, const char *, const char *, uid_t,
+ const char *, struct sockaddr *, socklen_t);
+void record_logout(pid_t, const char *, const char *);
+u_long get_last_login_time(uid_t, const char *, char *, u_int);