lastlogin.c revision 202205
168723Sru/* 268723Sru * Copyright (c) 1996 John M. Vinopal 368723Sru * All rights reserved. 468723Sru * 568723Sru * Redistribution and use in source and binary forms, with or without 668723Sru * modification, are permitted provided that the following conditions 768723Sru * are met: 868723Sru * 1. Redistributions of source code must retain the above copyright 968723Sru * notice, this list of conditions and the following disclaimer. 1068723Sru * 2. Redistributions in binary form must reproduce the above copyright 1168723Sru * notice, this list of conditions and the following disclaimer in the 1268723Sru * documentation and/or other materials provided with the distribution. 1368723Sru * 3. All advertising materials mentioning features or use of this software 1468723Sru * must display the following acknowledgement: 1568723Sru * This product includes software developed for the NetBSD Project 1668723Sru * by John M. Vinopal. 1768723Sru * 4. The name of the author may not be used to endorse or promote products 1868723Sru * derived from this software without specific prior written permission. 1968723Sru * 2068723Sru * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 2168723Sru * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 2268723Sru * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 2368723Sru * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 2468723Sru * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 2568723Sru * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 2668723Sru * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 2768723Sru * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 2868723Sru * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2968723Sru * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3068723Sru * SUCH DAMAGE. 3168723Sru */ 3268723Sru 3368723Sru#include <sys/cdefs.h> 3468723Sru#ifndef lint 3568723Sru__RCSID("$FreeBSD: head/usr.sbin/lastlogin/lastlogin.c 202205 2010-01-13 18:17:12Z ed $"); 3668723Sru__RCSID("$NetBSD: lastlogin.c,v 1.4 1998/02/03 04:45:35 perry Exp $"); 3768723Sru#endif 3868723Sru 3968723Sru#include <err.h> 4068723Sru#include <pwd.h> 4168723Sru#include <stdio.h> 4278719Sdd#include <stdlib.h> 4368723Sru#include <time.h> 4468723Sru#include <unistd.h> 45202205Sed#include <utmpx.h> 4668723Sru 4799800Salfred int main(int, char **); 48202205Sedstatic void output(struct utmpx *); 4999800Salfredstatic void usage(void); 5068723Sru 5168723Sruint 52201227Sedmain(int argc, char *argv[]) 5368723Sru{ 5468723Sru int ch, i; 55202205Sed struct utmpx *u; 5668723Sru 5768723Sru while ((ch = getopt(argc, argv, "")) != -1) { 5868723Sru usage(); 5968723Sru } 6068723Sru 6168723Sru setpassent(1); /* Keep passwd file pointers open */ 6268723Sru 6368723Sru /* Process usernames given on the command line. */ 6468723Sru if (argc > 1) { 6568723Sru for (i = 1; i < argc; ++i) { 66202205Sed if (setutxdb(UTXDB_LASTLOGIN, NULL) != 0) 67202205Sed errx(1, "failed to open lastlog database"); 68202205Sed if ((u = getutxuser(argv[i])) == NULL) { 6968723Sru warnx("user '%s' not found", argv[i]); 7068723Sru continue; 7168723Sru } 72200303Sed output(u); 73202205Sed endutxent(); 7468723Sru } 7568723Sru } 7668723Sru /* Read all lastlog entries, looking for active ones */ 7768723Sru else { 78202205Sed if (setutxdb(UTXDB_LASTLOGIN, NULL) != 0) 79202205Sed errx(1, "failed to open lastlog database"); 80202205Sed while ((u = getutxent()) != NULL) { 81200303Sed if (u->ut_type != USER_PROCESS) 8268723Sru continue; 83200303Sed output(u); 8468723Sru } 85202205Sed endutxent(); 8668723Sru } 8768723Sru 8868723Sru setpassent(0); /* Close passwd file pointers */ 8968723Sru exit(0); 9068723Sru} 9168723Sru 9268723Sru/* Duplicate the output of last(1) */ 9368723Srustatic void 94202205Sedoutput(struct utmpx *u) 9568723Sru{ 96200303Sed time_t t = u->ut_tv.tv_sec; 97200303Sed 98202205Sed printf("%-10s %-8s %-22s %s", 99202205Sed u->ut_user, u->ut_line, u->ut_host, ctime(&t)); 10068723Sru} 10168723Sru 10268723Srustatic void 103201227Sedusage(void) 10468723Sru{ 10569828Scharnier fprintf(stderr, "usage: lastlogin [user ...]\n"); 10668723Sru exit(1); 10768723Sru} 108