cf4d4e152c
Similar to last(1), it must compare ut_id's instead of TTYs to determine whether a session has been terminated. It must also use ut_type to determine the type of the login record instead figuring it out by itself.
636 lines
14 KiB
C
636 lines
14 KiB
C
/*
|
|
* Copyright (c) 1994 Christopher G. Demetriou.
|
|
* @(#)Copyright (c) 1994, Simon J. Gerraty.
|
|
*
|
|
* This is free software. It comes with NO WARRANTY.
|
|
* Permission to use, modify and distribute this source code
|
|
* is granted subject to the following conditions.
|
|
* 1/ that the above copyright notice and this notice
|
|
* are preserved in all copies and that due credit be given
|
|
* to the author.
|
|
* 2/ that any changes to this code are clearly commented
|
|
* as such so that the author does not get blamed for bugs
|
|
* other than his own.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/time.h>
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <langinfo.h>
|
|
#include <locale.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <timeconv.h>
|
|
#include <unistd.h>
|
|
#include <utmpx.h>
|
|
|
|
/*
|
|
* this is for our list of currently logged in sessions
|
|
*/
|
|
struct utmp_list {
|
|
struct utmp_list *next;
|
|
struct utmpx usr;
|
|
};
|
|
|
|
/*
|
|
* this is for our list of users that are accumulating time.
|
|
*/
|
|
struct user_list {
|
|
struct user_list *next;
|
|
char name[sizeof(((struct utmpx *)0)->ut_user)];
|
|
time_t secs;
|
|
};
|
|
|
|
/*
|
|
* this is for chosing whether to ignore a login
|
|
*/
|
|
struct tty_list {
|
|
struct tty_list *next;
|
|
char name[sizeof(((struct utmpx *)0)->ut_host) + 2];
|
|
size_t len;
|
|
int ret;
|
|
};
|
|
|
|
/*
|
|
* globals - yes yuk
|
|
*/
|
|
#ifdef CONSOLE_TTY
|
|
static char *Console = CONSOLE_TTY;
|
|
#endif
|
|
static time_t Total = 0;
|
|
static time_t FirstTime = 0;
|
|
static int Flags = 0;
|
|
static struct user_list *Users = NULL;
|
|
static struct tty_list *Ttys = NULL;
|
|
|
|
#define NEW(type) (type *)malloc(sizeof (type))
|
|
|
|
#define AC_W 1 /* not _PATH_WTMP */
|
|
#define AC_D 2 /* daily totals (ignore -p) */
|
|
#define AC_P 4 /* per-user totals */
|
|
#define AC_U 8 /* specified users only */
|
|
#define AC_T 16 /* specified ttys only */
|
|
|
|
#ifdef DEBUG
|
|
static int Debug = 0;
|
|
#endif
|
|
|
|
int main(int, char **);
|
|
int ac(const char *);
|
|
struct tty_list *add_tty(char *);
|
|
#ifdef DEBUG
|
|
const char *debug_pfx(const struct utmpx *, const struct utmpx *);
|
|
#endif
|
|
int do_tty(char *);
|
|
struct utmp_list *log_in(struct utmp_list *, struct utmpx *);
|
|
struct utmp_list *log_out(struct utmp_list *, struct utmpx *);
|
|
int on_console(struct utmp_list *);
|
|
void show(const char *, time_t);
|
|
void show_today(struct user_list *, struct utmp_list *,
|
|
time_t);
|
|
void show_users(struct user_list *);
|
|
struct user_list *update_user(struct user_list *, char *, time_t);
|
|
void usage(void);
|
|
|
|
struct tty_list *
|
|
add_tty(char *name)
|
|
{
|
|
struct tty_list *tp;
|
|
char *rcp;
|
|
|
|
Flags |= AC_T;
|
|
|
|
if ((tp = NEW(struct tty_list)) == NULL)
|
|
errx(1, "malloc failed");
|
|
tp->len = 0; /* full match */
|
|
tp->ret = 1; /* do if match */
|
|
if (*name == '!') { /* don't do if match */
|
|
tp->ret = 0;
|
|
name++;
|
|
}
|
|
strlcpy(tp->name, name, sizeof (tp->name));
|
|
if ((rcp = strchr(tp->name, '*')) != NULL) { /* wild card */
|
|
*rcp = '\0';
|
|
tp->len = strlen(tp->name); /* match len bytes only */
|
|
}
|
|
tp->next = Ttys;
|
|
Ttys = tp;
|
|
return Ttys;
|
|
}
|
|
|
|
/*
|
|
* should we process the named tty?
|
|
*/
|
|
int
|
|
do_tty(char *name)
|
|
{
|
|
struct tty_list *tp;
|
|
int def_ret = 0;
|
|
|
|
for (tp = Ttys; tp != NULL; tp = tp->next) {
|
|
if (tp->ret == 0) /* specific don't */
|
|
def_ret = 1; /* default do */
|
|
if (tp->len != 0) {
|
|
if (strncmp(name, tp->name, tp->len) == 0)
|
|
return tp->ret;
|
|
} else {
|
|
if (strncmp(name, tp->name, sizeof (tp->name)) == 0)
|
|
return tp->ret;
|
|
}
|
|
}
|
|
return def_ret;
|
|
}
|
|
|
|
#ifdef CONSOLE_TTY
|
|
/*
|
|
* is someone logged in on Console?
|
|
*/
|
|
int
|
|
on_console(struct utmp_list *head)
|
|
{
|
|
struct utmp_list *up;
|
|
|
|
for (up = head; up; up = up->next) {
|
|
if (strcmp(up->usr.ut_line, Console) == 0)
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* update user's login time
|
|
*/
|
|
struct user_list *
|
|
update_user(struct user_list *head, char *name, time_t secs)
|
|
{
|
|
struct user_list *up;
|
|
|
|
for (up = head; up != NULL; up = up->next) {
|
|
if (strcmp(up->name, name) == 0) {
|
|
up->secs += secs;
|
|
Total += secs;
|
|
return head;
|
|
}
|
|
}
|
|
/*
|
|
* not found so add new user unless specified users only
|
|
*/
|
|
if (Flags & AC_U)
|
|
return head;
|
|
|
|
if ((up = NEW(struct user_list)) == NULL)
|
|
errx(1, "malloc failed");
|
|
up->next = head;
|
|
strlcpy(up->name, name, sizeof (up->name));
|
|
up->secs = secs;
|
|
Total += secs;
|
|
return up;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
/*
|
|
* Create a string which is the standard prefix for a debug line. It
|
|
* includes a timestamp (perhaps with year), device-name, and user-name.
|
|
*/
|
|
const char *
|
|
debug_pfx(const struct utmpx *event_up, const struct utmpx *userinf_up)
|
|
{
|
|
static char str_result[40 + sizeof(userinf_up->ut_line) +
|
|
sizeof(userinf_up->ut_user)];
|
|
static char thisyear[5];
|
|
size_t maxcopy;
|
|
time_t ut_timecopy;
|
|
|
|
if (thisyear[0] == '\0') {
|
|
/* Figure out what "this year" is. */
|
|
time(&ut_timecopy);
|
|
strlcpy(str_result, ctime(&ut_timecopy), sizeof(str_result));
|
|
strlcpy(thisyear, &str_result[20], sizeof(thisyear));
|
|
}
|
|
|
|
if (event_up->ut_tv.tv_sec == 0)
|
|
strlcpy(str_result, "*ZeroTime* --:--:-- ", sizeof(str_result));
|
|
else {
|
|
ut_timecopy = event_up->ut_tv.tv_sec;
|
|
strlcpy(str_result, ctime(&ut_timecopy), sizeof(str_result));
|
|
/*
|
|
* Include the year, if it is not the same year as "now".
|
|
*/
|
|
if (strncmp(&str_result[20], thisyear, 4) == 0)
|
|
str_result[20] = '\0';
|
|
else {
|
|
str_result[24] = ' '; /* Replace a '\n' */
|
|
str_result[25] = '\0';
|
|
}
|
|
}
|
|
|
|
if (userinf_up->ut_line[0] == '\0')
|
|
strlcat(str_result, "NoDev", sizeof(str_result));
|
|
else {
|
|
maxcopy = strlen(str_result) + sizeof(userinf_up->ut_line);
|
|
if (maxcopy > sizeof(str_result))
|
|
maxcopy = sizeof(str_result);
|
|
strlcat(str_result, userinf_up->ut_line, maxcopy);
|
|
}
|
|
strlcat(str_result, ": ", sizeof(str_result));
|
|
|
|
if (userinf_up->ut_user[0] == '\0')
|
|
strlcat(str_result, "LogOff", sizeof(str_result));
|
|
else {
|
|
maxcopy = strlen(str_result) + sizeof(userinf_up->ut_user);
|
|
if (maxcopy > sizeof(str_result))
|
|
maxcopy = sizeof(str_result);
|
|
strlcat(str_result, userinf_up->ut_user, maxcopy);
|
|
}
|
|
|
|
return (str_result);
|
|
}
|
|
#endif
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
const char *wtmpf = NULL;
|
|
int c;
|
|
|
|
(void) setlocale(LC_TIME, "");
|
|
|
|
while ((c = getopt(argc, argv, "Dc:dpt:w:")) != -1) {
|
|
switch (c) {
|
|
#ifdef DEBUG
|
|
case 'D':
|
|
Debug++;
|
|
break;
|
|
#endif
|
|
case 'c':
|
|
#ifdef CONSOLE_TTY
|
|
Console = optarg;
|
|
#else
|
|
usage(); /* XXX */
|
|
#endif
|
|
break;
|
|
case 'd':
|
|
Flags |= AC_D;
|
|
break;
|
|
case 'p':
|
|
Flags |= AC_P;
|
|
break;
|
|
case 't': /* only do specified ttys */
|
|
add_tty(optarg);
|
|
break;
|
|
case 'w':
|
|
Flags |= AC_W;
|
|
wtmpf = optarg;
|
|
break;
|
|
case '?':
|
|
default:
|
|
usage();
|
|
break;
|
|
}
|
|
}
|
|
if (optind < argc) {
|
|
/*
|
|
* initialize user list
|
|
*/
|
|
for (; optind < argc; optind++) {
|
|
Users = update_user(Users, argv[optind], (time_t)0);
|
|
}
|
|
Flags |= AC_U; /* freeze user list */
|
|
}
|
|
if (Flags & AC_D)
|
|
Flags &= ~AC_P;
|
|
ac(wtmpf);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* print login time in decimal hours
|
|
*/
|
|
void
|
|
show(const char *name, time_t secs)
|
|
{
|
|
(void)printf("\t%-*s %8.2f\n",
|
|
(int)sizeof(((struct utmpx *)0)->ut_user), name,
|
|
((double)secs / 3600));
|
|
}
|
|
|
|
void
|
|
show_users(struct user_list *list)
|
|
{
|
|
struct user_list *lp;
|
|
|
|
for (lp = list; lp; lp = lp->next)
|
|
show(lp->name, lp->secs);
|
|
}
|
|
|
|
/*
|
|
* print total login time for 24hr period in decimal hours
|
|
*/
|
|
void
|
|
show_today(struct user_list *users, struct utmp_list *logins, time_t secs)
|
|
{
|
|
struct user_list *up;
|
|
struct utmp_list *lp;
|
|
char date[64];
|
|
time_t yesterday = secs - 1;
|
|
static int d_first = -1;
|
|
|
|
if (d_first < 0)
|
|
d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
|
|
(void)strftime(date, sizeof (date),
|
|
d_first ? "%e %b total" : "%b %e total",
|
|
localtime(&yesterday));
|
|
|
|
/* restore the missing second */
|
|
yesterday++;
|
|
|
|
for (lp = logins; lp != NULL; lp = lp->next) {
|
|
secs = yesterday - lp->usr.ut_tv.tv_sec;
|
|
Users = update_user(Users, lp->usr.ut_user, secs);
|
|
lp->usr.ut_tv.tv_sec = yesterday; /* as if they just logged in */
|
|
}
|
|
secs = 0;
|
|
for (up = users; up != NULL; up = up->next) {
|
|
secs += up->secs;
|
|
up->secs = 0; /* for next day */
|
|
}
|
|
if (secs)
|
|
(void)printf("%s %11.2f\n", date, ((double)secs / 3600));
|
|
}
|
|
|
|
/*
|
|
* log a user out and update their times.
|
|
* if ut_line is "~", we log all users out as the system has
|
|
* been shut down.
|
|
*/
|
|
struct utmp_list *
|
|
log_out(struct utmp_list *head, struct utmpx *up)
|
|
{
|
|
struct utmp_list *lp, *lp2, *tlp;
|
|
time_t secs;
|
|
|
|
for (lp = head, lp2 = NULL; lp != NULL; )
|
|
if (up->ut_type == BOOT_TIME || up->ut_type == SHUTDOWN_TIME ||
|
|
(up->ut_type == DEAD_PROCESS &&
|
|
memcmp(lp->usr.ut_id, up->ut_id, sizeof up->ut_id) == 0)) {
|
|
secs = up->ut_tv.tv_sec - lp->usr.ut_tv.tv_sec;
|
|
Users = update_user(Users, lp->usr.ut_user, secs);
|
|
#ifdef DEBUG
|
|
if (Debug)
|
|
printf("%s logged out (%2d:%02d:%02d)\n",
|
|
debug_pfx(up, &lp->usr), (int)(secs / 3600),
|
|
(int)((secs % 3600) / 60),
|
|
(int)(secs % 60));
|
|
#endif
|
|
/*
|
|
* now lose it
|
|
*/
|
|
tlp = lp;
|
|
lp = lp->next;
|
|
if (tlp == head)
|
|
head = lp;
|
|
else if (lp2 != NULL)
|
|
lp2->next = lp;
|
|
free(tlp);
|
|
} else {
|
|
lp2 = lp;
|
|
lp = lp->next;
|
|
}
|
|
return head;
|
|
}
|
|
|
|
|
|
/*
|
|
* if do_tty says ok, login a user
|
|
*/
|
|
struct utmp_list *
|
|
log_in(struct utmp_list *head, struct utmpx *up)
|
|
{
|
|
struct utmp_list *lp;
|
|
|
|
/*
|
|
* this could be a login. if we're not dealing with
|
|
* the console name, say it is.
|
|
*
|
|
* If we are, and if ut_host==":0.0" we know that it
|
|
* isn't a real login. _But_ if we have not yet recorded
|
|
* someone being logged in on Console - due to the wtmp
|
|
* file starting after they logged in, we'll pretend they
|
|
* logged in, at the start of the wtmp file.
|
|
*/
|
|
|
|
#ifdef CONSOLE_TTY
|
|
if (up->ut_host[0] == ':') {
|
|
/*
|
|
* SunOS 4.0.2 does not treat ":0.0" as special but we
|
|
* do.
|
|
*/
|
|
if (on_console(head))
|
|
return head;
|
|
/*
|
|
* ok, no recorded login, so they were here when wtmp
|
|
* started! Adjust ut_time!
|
|
*/
|
|
up->ut_time = FirstTime;
|
|
/*
|
|
* this allows us to pick the right logout
|
|
*/
|
|
strlcpy(up->ut_line, Console, sizeof (up->ut_line));
|
|
}
|
|
#endif
|
|
/*
|
|
* If we are doing specified ttys only, we ignore
|
|
* anything else.
|
|
*/
|
|
if (Flags & AC_T)
|
|
if (!do_tty(up->ut_line))
|
|
return head;
|
|
|
|
/*
|
|
* go ahead and log them in
|
|
*/
|
|
if ((lp = NEW(struct utmp_list)) == NULL)
|
|
errx(1, "malloc failed");
|
|
lp->next = head;
|
|
head = lp;
|
|
memmove(&lp->usr, up, sizeof *up);
|
|
#ifdef DEBUG
|
|
if (Debug) {
|
|
printf("%s logged in", debug_pfx(&lp->usr, up));
|
|
if (*up->ut_host)
|
|
printf(" (%-.*s)", (int)sizeof(up->ut_host),
|
|
up->ut_host);
|
|
putchar('\n');
|
|
}
|
|
#endif
|
|
return head;
|
|
}
|
|
|
|
int
|
|
ac(const char *file)
|
|
{
|
|
struct utmp_list *lp, *head = NULL;
|
|
struct utmpx *usr, usht;
|
|
struct tm *ltm;
|
|
time_t prev_secs, secs, ut_timecopy;
|
|
int day, rfound, tchanged, tskipped;
|
|
|
|
day = -1;
|
|
prev_secs = 1; /* Minimum acceptable date == 1970 */
|
|
rfound = tchanged = tskipped = 0;
|
|
secs = 0;
|
|
if (setutxdb(UTXDB_LOG, file) != 0)
|
|
err(1, "%s", file);
|
|
while ((usr = getutxent()) != NULL) {
|
|
rfound++;
|
|
ut_timecopy = usr->ut_tv.tv_sec;
|
|
/*
|
|
* With sparc64 using 64-bit time_t's, there is some system
|
|
* routine which sets ut_time==0 (the high-order word of a
|
|
* 64-bit time) instead of a 32-bit time value. For those
|
|
* wtmp files, it is "more-accurate" to substitute the most-
|
|
* recent time found, instead of throwing away the entire
|
|
* record. While it is still just a guess, it is a better
|
|
* guess than throwing away a log-off record and therefore
|
|
* counting a session as if it continued to the end of the
|
|
* month, or the next system-reboot.
|
|
*/
|
|
if (ut_timecopy == 0 && prev_secs > 1) {
|
|
#ifdef DEBUG
|
|
if (Debug)
|
|
printf("%s - date changed to: %s",
|
|
debug_pfx(usr, usr), ctime(&prev_secs));
|
|
#endif
|
|
tchanged++;
|
|
usr->ut_tv.tv_sec = ut_timecopy = prev_secs;
|
|
}
|
|
/*
|
|
* Skip records where the time goes backwards.
|
|
*/
|
|
if (ut_timecopy < prev_secs) {
|
|
#ifdef DEBUG
|
|
if (Debug)
|
|
printf("%s - bad date, record skipped\n",
|
|
debug_pfx(usr, usr));
|
|
#endif
|
|
tskipped++;
|
|
continue; /* Skip this invalid record. */
|
|
}
|
|
prev_secs = ut_timecopy;
|
|
|
|
if (!FirstTime)
|
|
FirstTime = ut_timecopy;
|
|
if (Flags & AC_D) {
|
|
ltm = localtime(&ut_timecopy);
|
|
if (day >= 0 && day != ltm->tm_yday) {
|
|
day = ltm->tm_yday;
|
|
/*
|
|
* print yesterday's total
|
|
*/
|
|
secs = ut_timecopy;
|
|
secs -= ltm->tm_sec;
|
|
secs -= 60 * ltm->tm_min;
|
|
secs -= 3600 * ltm->tm_hour;
|
|
show_today(Users, head, secs);
|
|
} else
|
|
day = ltm->tm_yday;
|
|
}
|
|
switch(usr->ut_type) {
|
|
case OLD_TIME:
|
|
secs = ut_timecopy;
|
|
break;
|
|
case NEW_TIME:
|
|
secs -= ut_timecopy;
|
|
/*
|
|
* adjust time for those logged in
|
|
*/
|
|
for (lp = head; lp != NULL; lp = lp->next)
|
|
lp->usr.ut_tv.tv_sec -= secs;
|
|
break;
|
|
case BOOT_TIME:
|
|
case SHUTDOWN_TIME:
|
|
head = log_out(head, usr);
|
|
FirstTime = ut_timecopy; /* shouldn't be needed */
|
|
break;
|
|
case USER_PROCESS:
|
|
/*
|
|
* if they came in on tty[p-sP-S]*, then it is only
|
|
* a login session if the ut_host field is non-empty
|
|
*/
|
|
if (strncmp(usr->ut_line, "tty", 3) != 0 ||
|
|
strchr("pqrsPQRS", usr->ut_line[3]) == NULL ||
|
|
*usr->ut_host != '\0')
|
|
head = log_in(head, usr);
|
|
#ifdef DEBUG
|
|
else if (Debug > 1)
|
|
/* Things such as 'screen' sessions. */
|
|
printf("%s - record ignored\n",
|
|
debug_pfx(usr, usr));
|
|
#endif
|
|
break;
|
|
case DEAD_PROCESS:
|
|
head = log_out(head, usr);
|
|
break;
|
|
}
|
|
}
|
|
endutxent();
|
|
if (!(Flags & AC_W))
|
|
usht.ut_tv.tv_sec = time(NULL);
|
|
usht.ut_type = SHUTDOWN_TIME;
|
|
|
|
if (Flags & AC_D) {
|
|
ut_timecopy = usht.ut_tv.tv_sec;
|
|
ltm = localtime(&ut_timecopy);
|
|
if (day >= 0 && day != ltm->tm_yday) {
|
|
/*
|
|
* print yesterday's total
|
|
*/
|
|
secs = ut_timecopy;
|
|
secs -= ltm->tm_sec;
|
|
secs -= 60 * ltm->tm_min;
|
|
secs -= 3600 * ltm->tm_hour;
|
|
show_today(Users, head, secs);
|
|
}
|
|
}
|
|
/*
|
|
* anyone still logged in gets time up to now
|
|
*/
|
|
head = log_out(head, &usht);
|
|
|
|
if (Flags & AC_D)
|
|
show_today(Users, head, time((time_t *)0));
|
|
else {
|
|
if (Flags & AC_P)
|
|
show_users(Users);
|
|
show("total", Total);
|
|
}
|
|
|
|
if (tskipped > 0)
|
|
printf("(Skipped %d of %d records due to invalid time values)\n",
|
|
tskipped, rfound);
|
|
if (tchanged > 0)
|
|
printf("(Changed %d of %d records to have a more likely time value)\n",
|
|
tchanged, rfound);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
usage(void)
|
|
{
|
|
(void)fprintf(stderr,
|
|
#ifdef CONSOLE_TTY
|
|
"ac [-dp] [-c console] [-t tty] [-w wtmp] [users ...]\n");
|
|
#else
|
|
"ac [-dp] [-t tty] [-w wtmp] [users ...]\n");
|
|
#endif
|
|
exit(1);
|
|
}
|