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/*
* Copyright (c) 1996 John M. Vinopal
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project
* by John M. Vinopal.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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("$FreeBSD$");
__RCSID("$NetBSD: lastlogin.c,v 1.4 1998/02/03 04:45:35 perry Exp $");
#endif
#include <err.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <ulog.h>
#include <unistd.h>
int main(int, char **);
static void output(struct ulog_utmpx *);
static void usage(void);
int
main(int argc, char *argv[])
{
int ch, i;
struct ulog_utmpx *u;
while ((ch = getopt(argc, argv, "")) != -1) {
usage();
}
if (ulog_setutxfile(UTXI_USER, NULL) != 0)
errx(1, "failed to open lastlog database");
setpassent(1); /* Keep passwd file pointers open */
/* Process usernames given on the command line. */
if (argc > 1) {
for (i = 1; i < argc; ++i) {
if ((u = ulog_getutxuser(argv[i])) == NULL) {
warnx("user '%s' not found", argv[i]);
continue;
}
output(u);
}
}
/* Read all lastlog entries, looking for active ones */
else {
while ((u = ulog_getutxent()) != NULL) {
if (u->ut_type != USER_PROCESS)
continue;
output(u);
}
}
setpassent(0); /* Close passwd file pointers */
ulog_endutxent();
exit(0);
}
/* Duplicate the output of last(1) */
static void
output(struct ulog_utmpx *u)
{
time_t t = u->ut_tv.tv_sec;
printf("%-16s %-8s %-16s %s",
u->ut_user, u->ut_line, u->ut_host,
(u->ut_type == USER_PROCESS) ? ctime(&t) : "Never logged in\n");
}
static void
usage(void)
{
fprintf(stderr, "usage: lastlogin [user ...]\n");
exit(1);
}
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