2 * Copyright (c) 1994 Christopher G. Demetriou.
3 * @(#)Copyright (c) 1994, Simon J. Gerraty.
5 * This is free software. It comes with NO WARRANTY.
6 * Permission to use, modify and distribute this source code
7 * is granted subject to the following conditions.
8 * 1/ that the above copyright notice and this notice
9 * are preserved in all copies and that due credit be given
11 * 2/ that any changes to this code are clearly commented
12 * as such so that the author does not get blamed for bugs
16 #include <sys/cdefs.h>
17 __FBSDID("$FreeBSD$");
19 #include <sys/types.h>
33 * this is for our list of currently logged in sessions
36 struct utmp_list *next;
41 * this is for our list of users that are accumulating time.
44 struct user_list *next;
45 char name[UT_NAMESIZE+1];
50 * this is for chosing whether to ignore a login
53 struct tty_list *next;
54 char name[UT_LINESIZE+3];
63 static char *Console = CONSOLE_TTY;
65 static time_t Total = 0;
66 static time_t FirstTime = 0;
68 static struct user_list *Users = NULL;
69 static struct tty_list *Ttys = NULL;
71 #define NEW(type) (type *)malloc(sizeof (type))
73 #define AC_W 1 /* not _PATH_WTMP */
74 #define AC_D 2 /* daily totals (ignore -p) */
75 #define AC_P 4 /* per-user totals */
76 #define AC_U 8 /* specified users only */
77 #define AC_T 16 /* specified ttys only */
83 int main(int, char **);
85 struct tty_list *add_tty(char *);
87 FILE *file(const char *);
88 struct utmp_list *log_in(struct utmp_list *, struct utmp *);
89 struct utmp_list *log_out(struct utmp_list *, struct utmp *);
90 int on_console(struct utmp_list *);
91 void show(const char *, time_t);
92 void show_today(struct user_list *, struct utmp_list *,
94 void show_users(struct user_list *);
95 struct user_list *update_user(struct user_list *, char *, time_t);
107 if ((fp = fopen(name, "r")) == NULL)
109 /* in case we want to discriminate */
110 if (strcmp(_PATH_WTMP, name))
124 if ((tp = NEW(struct tty_list)) == NULL)
125 errx(1, "malloc failed");
126 tp->len = 0; /* full match */
127 tp->ret = 1; /* do if match */
128 if (*name == '!') { /* don't do if match */
132 strlcpy(tp->name, name, sizeof (tp->name));
133 if ((rcp = strchr(tp->name, '*')) != NULL) { /* wild card */
135 tp->len = strlen(tp->name); /* match len bytes only */
143 * should we process the named tty?
152 for (tp = Ttys; tp != NULL; tp = tp->next) {
153 if (tp->ret == 0) /* specific don't */
154 def_ret = 1; /* default do */
156 if (strncmp(name, tp->name, tp->len) == 0)
159 if (strncmp(name, tp->name, sizeof (tp->name)) == 0)
168 * is someone logged in on Console?
172 struct utmp_list *head;
174 struct utmp_list *up;
176 for (up = head; up; up = up->next) {
177 if (strncmp(up->usr.ut_line, Console,
178 sizeof (up->usr.ut_line)) == 0)
186 * update user's login time
189 update_user(head, name, secs)
190 struct user_list *head;
194 struct user_list *up;
196 for (up = head; up != NULL; up = up->next) {
197 if (strncmp(up->name, name, UT_NAMESIZE) == 0) {
204 * not found so add new user unless specified users only
209 if ((up = NEW(struct user_list)) == NULL)
210 errx(1, "malloc failed");
212 strlcpy(up->name, name, sizeof (up->name));
226 (void) setlocale(LC_TIME, "");
229 while ((c = getopt(argc, argv, "Dc:dpt:w:")) != -1) {
249 case 't': /* only do specified ttys */
263 * initialize user list
265 for (; optind < argc; optind++) {
266 Users = update_user(Users, argv[optind], (time_t)0);
268 Flags |= AC_U; /* freeze user list */
274 * if _PATH_WTMP does not exist, exit quietly
276 if (access(_PATH_WTMP, 0) != 0 && errno == ENOENT)
279 fp = file(_PATH_WTMP);
287 * print login time in decimal hours
294 (void)printf("\t%-*s %8.2f\n", UT_NAMESIZE, name,
295 ((double)secs / 3600));
300 struct user_list *list;
302 struct user_list *lp;
304 for (lp = list; lp; lp = lp->next)
305 show(lp->name, lp->secs);
309 * print total login time for 24hr period in decimal hours
312 show_today(users, logins, secs)
313 struct user_list *users;
314 struct utmp_list *logins;
317 struct user_list *up;
318 struct utmp_list *lp;
320 time_t yesterday = secs - 1;
321 static int d_first = -1;
324 d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
325 (void)strftime(date, sizeof (date),
326 d_first ? "%e %b total" : "%b %e total",
327 localtime(&yesterday));
329 /* restore the missing second */
332 for (lp = logins; lp != NULL; lp = lp->next) {
333 secs = yesterday - lp->usr.ut_time;
334 Users = update_user(Users, lp->usr.ut_name, secs);
335 lp->usr.ut_time = yesterday; /* as if they just logged in */
338 for (up = users; up != NULL; up = up->next) {
340 up->secs = 0; /* for next day */
343 (void)printf("%s %11.2f\n", date, ((double)secs / 3600));
347 * log a user out and update their times.
348 * if ut_line is "~", we log all users out as the system has
353 struct utmp_list *head;
356 struct utmp_list *lp, *lp2, *tlp;
359 for (lp = head, lp2 = NULL; lp != NULL; )
360 if (*up->ut_line == '~' || strncmp(lp->usr.ut_line, up->ut_line,
361 sizeof (up->ut_line)) == 0) {
362 secs = up->ut_time - lp->usr.ut_time;
363 Users = update_user(Users, lp->usr.ut_name, secs);
366 printf("%-.*s %-.*s: %-.*s logged out (%2d:%02d:%02d)\n",
367 19, ctime(&up->ut_time),
368 sizeof (lp->usr.ut_line), lp->usr.ut_line,
369 sizeof (lp->usr.ut_name), lp->usr.ut_name,
370 secs / 3600, (secs % 3600) / 60, secs % 60);
379 else if (lp2 != NULL)
391 * if do_tty says ok, login a user
395 struct utmp_list *head;
398 struct utmp_list *lp;
401 * this could be a login. if we're not dealing with
402 * the console name, say it is.
404 * If we are, and if ut_host==":0.0" we know that it
405 * isn't a real login. _But_ if we have not yet recorded
406 * someone being logged in on Console - due to the wtmp
407 * file starting after they logged in, we'll pretend they
408 * logged in, at the start of the wtmp file.
412 if (up->ut_host[0] == ':') {
414 * SunOS 4.0.2 does not treat ":0.0" as special but we
417 if (on_console(head))
420 * ok, no recorded login, so they were here when wtmp
421 * started! Adjust ut_time!
423 up->ut_time = FirstTime;
425 * this allows us to pick the right logout
427 strlcpy(up->ut_line, Console, sizeof (up->ut_line));
431 * If we are doing specified ttys only, we ignore
435 if (!do_tty(up->ut_line))
439 * go ahead and log them in
441 if ((lp = NEW(struct utmp_list)) == NULL)
442 errx(1, "malloc failed");
445 memmove((char *)&lp->usr, (char *)up, sizeof (struct utmp));
448 printf("%-.*s %-.*s: %-.*s logged in", 19,
449 ctime(&lp->usr.ut_time), sizeof (up->ut_line),
450 up->ut_line, sizeof (up->ut_name), up->ut_name);
452 printf(" (%-.*s)", sizeof (up->ut_host), up->ut_host);
463 struct utmp_list *lp, *head = NULL;
469 while (fread((char *)&usr, sizeof(usr), 1, fp) == 1) {
471 FirstTime = usr.ut_time;
473 time_t t = _int_to_time(usr.ut_time);
475 if (day >= 0 && day != ltm->tm_yday) {
478 * print yesterday's total
482 secs -= 60 * ltm->tm_min;
483 secs -= 3600 * ltm->tm_hour;
484 show_today(Users, head, secs);
488 switch(*usr.ut_line) {
495 * adjust time for those logged in
497 for (lp = head; lp != NULL; lp = lp->next)
498 lp->usr.ut_time -= secs;
500 case '~': /* reboot or shutdown */
501 head = log_out(head, &usr);
502 FirstTime = usr.ut_time; /* shouldn't be needed */
506 * if they came in on tty[p-sP-S]*, then it is only
507 * a login session if the ut_host field is non-empty
510 if (strncmp(usr.ut_line, "tty", 3) == 0 ||
511 strchr("pqrsPQRS", usr.ut_line[3]) != 0 ||
512 *usr.ut_host != '\0')
513 head = log_in(head, &usr);
515 head = log_out(head, &usr);
521 usr.ut_time = time((time_t *)0);
522 (void)strcpy(usr.ut_line, "~");
525 time_t t = _int_to_time(usr.ut_time);
527 if (day >= 0 && day != ltm->tm_yday) {
529 * print yesterday's total
533 secs -= 60 * ltm->tm_min;
534 secs -= 3600 * ltm->tm_hour;
535 show_today(Users, head, secs);
539 * anyone still logged in gets time up to now
541 head = log_out(head, &usr);
544 show_today(Users, head, time((time_t *)0));
548 show("total", Total);
556 (void)fprintf(stderr,
558 "ac [-dp] [-c console] [-t tty] [-w wtmp] [users ...]\n");
560 "ac [-dp] [-t tty] [-w wtmp] [users ...]\n");