user_list
struct user_list *
update_user(struct user_list *head, char *name, time_t secs)
struct user_list *up;
if ((up = malloc(sizeof(struct user_list))) == NULL)
show_users(struct user_list *list)
struct user_list *lp;
show_today(struct user_list *users, struct utmp_list *logins, time_t secs)
struct user_list *up;
struct user_list *next;
static struct user_list *Users = NULL;
void show_today(struct user_list *, struct utmp_list *,
void show_users(struct user_list *);
struct user_list *update_user(struct user_list *, char *, time_t);
TAILQ_HEAD(user_list, _user) users;