498ab6ee99
Reported by Ed Schouten <ed@FreeBSD.org> to tech-userlevel. Adapt license to match FreeBSD's version, leaving Ed out since according to CVS logs, he didn't touch NetBSD's version.
567 lines
12 KiB
C
567 lines
12 KiB
C
/* $NetBSD: ac.c,v 1.25 2012/08/31 19:55:23 wiz Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1994 Christopher G. Demetriou
|
|
* Copyright (c) 1994 Simon J. Gerraty
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
__RCSID("$NetBSD: ac.c,v 1.25 2012/08/31 19:55:23 wiz Exp $");
|
|
#endif
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <pwd.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <time.h>
|
|
#include <utmp.h>
|
|
#include <ttyent.h>
|
|
|
|
/*
|
|
* this is for our list of currently logged in sessions
|
|
*/
|
|
struct utmp_list {
|
|
struct utmp_list *next;
|
|
struct utmp usr;
|
|
};
|
|
|
|
/*
|
|
* this is for our list of users that are accumulating time.
|
|
*/
|
|
struct user_list {
|
|
struct user_list *next;
|
|
char name[UT_NAMESIZE+1];
|
|
time_t secs;
|
|
};
|
|
|
|
/*
|
|
* this is for chosing whether to ignore a login
|
|
*/
|
|
struct tty_list {
|
|
struct tty_list *next;
|
|
char name[UT_LINESIZE+3];
|
|
int len;
|
|
int ret;
|
|
};
|
|
|
|
/*
|
|
* globals - yes yuk
|
|
*/
|
|
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;
|
|
static int Maxcon = 0, Ncon = 0;
|
|
static char (*Con)[UT_LINESIZE] = NULL;
|
|
|
|
#define NEW(type) (type *)malloc(sizeof (type))
|
|
|
|
#define is_login_tty(line) \
|
|
(bsearch(line, Con, Ncon, sizeof(Con[0]), compare) != NULL)
|
|
|
|
#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
|
|
|
|
static int ac(FILE *);
|
|
static struct tty_list *add_tty(char *);
|
|
static int do_tty(char *);
|
|
static FILE *file(const char *);
|
|
static struct utmp_list *log_in(struct utmp_list *, struct utmp *);
|
|
static struct utmp_list *log_out(struct utmp_list *, struct utmp *);
|
|
#ifdef notdef
|
|
static int on_console(struct utmp_list *);
|
|
#endif
|
|
static void find_login_ttys(void);
|
|
static void show(const char *, time_t);
|
|
static void show_today(struct user_list *, struct utmp_list *,
|
|
time_t);
|
|
static void show_users(struct user_list *);
|
|
static struct user_list *update_user(struct user_list *, char *, time_t);
|
|
static int compare(const void *, const void *);
|
|
__dead static void usage(void);
|
|
|
|
/*
|
|
* open wtmp or die
|
|
*/
|
|
static FILE *
|
|
file(const char *name)
|
|
{
|
|
FILE *fp;
|
|
|
|
if (strcmp(name, "-") == 0)
|
|
fp = stdin;
|
|
else if ((fp = fopen(name, "r")) == NULL)
|
|
err(1, "%s", name);
|
|
/* in case we want to discriminate */
|
|
if (strcmp(_PATH_WTMP, name))
|
|
Flags |= AC_W;
|
|
return fp;
|
|
}
|
|
|
|
static struct tty_list *
|
|
add_tty(char *name)
|
|
{
|
|
struct tty_list *tp;
|
|
char *rcp;
|
|
|
|
Flags |= AC_T;
|
|
|
|
if ((tp = NEW(struct tty_list)) == NULL)
|
|
err(1, "malloc");
|
|
tp->len = 0; /* full match */
|
|
tp->ret = 1; /* do if match */
|
|
if (*name == '!') { /* don't do if match */
|
|
tp->ret = 0;
|
|
name++;
|
|
}
|
|
(void)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?
|
|
*/
|
|
static 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;
|
|
}
|
|
|
|
static int
|
|
compare(const void *a, const void *b)
|
|
{
|
|
return strncmp(a, b, UT_LINESIZE);
|
|
}
|
|
|
|
/*
|
|
* Deal correctly with multiple virtual consoles/login ttys.
|
|
* We read the ttyent's from /etc/ttys and classify as login
|
|
* ttys ones that are running getty and they are turned on.
|
|
*/
|
|
static void
|
|
find_login_ttys(void)
|
|
{
|
|
struct ttyent *tty;
|
|
char (*nCon)[UT_LINESIZE];
|
|
|
|
if ((Con = malloc((Maxcon = 10) * sizeof(Con[0]))) == NULL)
|
|
err(1, "malloc");
|
|
|
|
setttyent();
|
|
while ((tty = getttyent()) != NULL)
|
|
if ((tty->ty_status & TTY_ON) != 0 &&
|
|
strstr(tty->ty_getty, "getty") != NULL) {
|
|
if (Ncon == Maxcon) {
|
|
if ((nCon = realloc(Con, (Maxcon + 10) *
|
|
sizeof(Con[0]))) == NULL)
|
|
err(1, "malloc");
|
|
Con = nCon;
|
|
Maxcon += 10;
|
|
}
|
|
(void)strncpy(Con[Ncon++], tty->ty_name, UT_LINESIZE);
|
|
}
|
|
endttyent();
|
|
qsort(Con, Ncon, sizeof(Con[0]), compare);
|
|
}
|
|
|
|
#ifdef notdef
|
|
/*
|
|
* is someone logged in on Console/login tty?
|
|
*/
|
|
static int
|
|
on_console(struct utmp_list *head)
|
|
{
|
|
struct utmp_list *up;
|
|
|
|
for (up = head; up; up = up->next)
|
|
if (is_login_tty(up->usr.ut_line))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* update user's login time
|
|
*/
|
|
static 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 (strncmp(up->name, name, sizeof (up->name) - 1) == 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)
|
|
err(1, "malloc");
|
|
up->next = head;
|
|
(void)strlcpy(up->name, name, sizeof (up->name));
|
|
up->secs = secs;
|
|
Total += secs;
|
|
return up;
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
FILE *fp;
|
|
int c;
|
|
|
|
fp = NULL;
|
|
while ((c = getopt(argc, argv, "Ddpt:w:")) != -1) {
|
|
switch (c) {
|
|
#ifdef DEBUG
|
|
case 'D':
|
|
Debug++;
|
|
break;
|
|
#endif
|
|
case 'd':
|
|
Flags |= AC_D;
|
|
break;
|
|
case 'p':
|
|
Flags |= AC_P;
|
|
break;
|
|
case 't': /* only do specified ttys */
|
|
add_tty(optarg);
|
|
break;
|
|
case 'w':
|
|
fp = file(optarg);
|
|
break;
|
|
case '?':
|
|
default:
|
|
usage();
|
|
}
|
|
}
|
|
|
|
find_login_ttys();
|
|
|
|
if (optind < argc) {
|
|
/*
|
|
* initialize user list
|
|
*/
|
|
for (; optind < argc; optind++) {
|
|
Users = update_user(Users, argv[optind], 0L);
|
|
}
|
|
Flags |= AC_U; /* freeze user list */
|
|
}
|
|
if (Flags & AC_D)
|
|
Flags &= ~AC_P;
|
|
if (fp == NULL) {
|
|
/*
|
|
* if _PATH_WTMP does not exist, exit quietly
|
|
*/
|
|
if (access(_PATH_WTMP, 0) != 0 && errno == ENOENT)
|
|
return 0;
|
|
|
|
fp = file(_PATH_WTMP);
|
|
}
|
|
ac(fp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* print login time in decimal hours
|
|
*/
|
|
static void
|
|
show(const char *name, time_t secs)
|
|
{
|
|
(void)printf("\t%-*s %8.2f\n", UT_NAMESIZE, name,
|
|
((double)secs / 3600));
|
|
}
|
|
|
|
static 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
|
|
*/
|
|
static 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;
|
|
|
|
(void)strftime(date, sizeof (date), "%b %e total",
|
|
localtime(&yesterday));
|
|
|
|
/* restore the missing second */
|
|
yesterday++;
|
|
|
|
for (lp = logins; lp != NULL; lp = lp->next) {
|
|
secs = yesterday - lp->usr.ut_time;
|
|
Users = update_user(Users, lp->usr.ut_name, secs);
|
|
lp->usr.ut_time = 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.
|
|
*/
|
|
static struct utmp_list *
|
|
log_out(struct utmp_list *head, struct utmp *up)
|
|
{
|
|
struct utmp_list *lp, *lp2, *tlp;
|
|
time_t secs;
|
|
|
|
for (lp = head, lp2 = NULL; lp != NULL; )
|
|
if (*up->ut_line == '~' || strncmp(lp->usr.ut_line, up->ut_line,
|
|
sizeof (up->ut_line)) == 0) {
|
|
secs = up->ut_time - lp->usr.ut_time;
|
|
Users = update_user(Users, lp->usr.ut_name, secs);
|
|
#ifdef DEBUG
|
|
if (Debug)
|
|
printf("%-.*s %-.*s: %-.*s logged out (%2d:%02d:%02d)\n",
|
|
19, ctime(&up->ut_time),
|
|
sizeof (lp->usr.ut_line), lp->usr.ut_line,
|
|
sizeof (lp->usr.ut_name), lp->usr.ut_name,
|
|
secs / 3600, (secs % 3600) / 60, 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 utmp *up)
|
|
{
|
|
struct utmp_list *lp;
|
|
|
|
/*
|
|
* 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)
|
|
err(1, "malloc");
|
|
lp->next = head;
|
|
head = lp;
|
|
memmove((char *)&lp->usr, (char *)up, sizeof (struct utmp));
|
|
#ifdef DEBUG
|
|
if (Debug) {
|
|
printf("%-.*s %-.*s: %-.*s logged in", 19,
|
|
ctime(&lp->usr.ut_time), sizeof (up->ut_line),
|
|
up->ut_line, sizeof (up->ut_name), up->ut_name);
|
|
if (*up->ut_host)
|
|
printf(" (%-.*s)", sizeof (up->ut_host), up->ut_host);
|
|
putchar('\n');
|
|
}
|
|
#endif
|
|
return head;
|
|
}
|
|
|
|
static int
|
|
ac(FILE *fp)
|
|
{
|
|
struct utmp_list *lp, *head = NULL;
|
|
struct utmp usr;
|
|
struct tm *ltm;
|
|
time_t secs = 0;
|
|
int day = -1;
|
|
|
|
while (fread((char *)&usr, sizeof(usr), 1, fp) == 1) {
|
|
if (!FirstTime)
|
|
FirstTime = usr.ut_time;
|
|
if (Flags & AC_D) {
|
|
ltm = localtime(&usr.ut_time);
|
|
if (day >= 0 && day != ltm->tm_yday) {
|
|
day = ltm->tm_yday;
|
|
/*
|
|
* print yesterday's total
|
|
*/
|
|
secs = usr.ut_time;
|
|
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_line) {
|
|
case '|':
|
|
secs = usr.ut_time;
|
|
break;
|
|
case '{':
|
|
secs -= usr.ut_time;
|
|
/*
|
|
* adjust time for those logged in
|
|
*/
|
|
for (lp = head; lp != NULL; lp = lp->next)
|
|
lp->usr.ut_time -= secs;
|
|
break;
|
|
case '~': /* reboot or shutdown */
|
|
head = log_out(head, &usr);
|
|
FirstTime = usr.ut_time; /* shouldn't be needed */
|
|
break;
|
|
default:
|
|
/*
|
|
* if they came in on tty[p-y]*, then it is only
|
|
* a login session if the ut_host field is non-empty,
|
|
* or this tty is a login tty [eg. a console]
|
|
*/
|
|
if (*usr.ut_name) {
|
|
if ((strncmp(usr.ut_line, "tty", 3) != 0 &&
|
|
strncmp(usr.ut_line, "dty", 3) != 0) ||
|
|
strchr("pqrstuvwxyzPQRST", usr.ut_line[3]) == 0 ||
|
|
*usr.ut_host != '\0' ||
|
|
is_login_tty(usr.ut_line))
|
|
head = log_in(head, &usr);
|
|
#ifdef DEBUG
|
|
else if (Debug)
|
|
printf("%-.*s %-.*s: %-.*s ignored\n",
|
|
19, ctime(&usr.ut_time),
|
|
sizeof (usr.ut_line), usr.ut_line,
|
|
sizeof (usr.ut_name), usr.ut_name);
|
|
#endif
|
|
} else
|
|
head = log_out(head, &usr);
|
|
break;
|
|
}
|
|
}
|
|
(void)fclose(fp);
|
|
usr.ut_time = time((time_t *)0);
|
|
(void)strcpy(usr.ut_line, "~");
|
|
|
|
if (Flags & AC_D) {
|
|
ltm = localtime(&usr.ut_time);
|
|
if (day >= 0 && day != ltm->tm_yday) {
|
|
/*
|
|
* print yesterday's total
|
|
*/
|
|
secs = usr.ut_time;
|
|
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, &usr);
|
|
|
|
if (Flags & AC_D)
|
|
show_today(Users, head, time((time_t *)0));
|
|
else {
|
|
if (Flags & AC_P)
|
|
show_users(Users);
|
|
show("total", Total);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
|
|
(void)fprintf(stderr,
|
|
"usage: %s [-d | -p] [-t tty] [-w wtmp] [users ...]\n",
|
|
getprogname());
|
|
exit(1);
|
|
}
|