[openssh.git] / login.c

/*
 *
 * login.c
 *
 * Author: Tatu Ylonen <ylo@cs.hut.fi>
 *
 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
 *                    All rights reserved
 *
 * Created: Fri Mar 24 14:51:08 1995 ylo
 *
 * This file performs some of the things login(1) normally does.  We cannot
 * easily use something like login -p -h host -f user, because there are
 * several different logins around, and it is hard to determined what kind of
 * login the current system has.  Also, we want to be able to execute commands
 * on a tty.
 *
 */

#include "includes.h"
RCSID("$Id$");

#if defined(HAVE_UTMPX_H) && defined(USE_UTMPX)
# include <utmpx.h>
#endif
#ifdef HAVE_UTMP_H
# include <utmp.h>
#endif
#include "ssh.h"

#ifdef HAVE_UTIL_H
# include <util.h>
#endif
#ifdef HAVE_LASTLOG_H
# include <lastlog.h>
#endif
#ifdef HAVE_LOGIN_H
# include <login.h>
#endif

/*
 * Returns the time when the user last logged in.  Returns 0 if the
 * information is not available.  This must be called before record_login.
 * The host the user logged in from will be returned in buf.
 */

/*
 * Returns the time when the user last logged in (or 0 if no previous login
 * is found).  The name of the host used last time is returned in buf.
 */

unsigned long
get_last_login_time(uid_t uid, const char *logname,
		    char *buf, unsigned int bufsize)
{
#if defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG)
	struct lastlog ll;
	char *lastlog;
	int fd;
#ifdef LASTLOG_IS_DIR
	char lbuf[1024];
#endif /* LASTLOG_IS_DIR */

	lastlog = _PATH_LASTLOG;
	buf[0] = '\0';

#ifndef LASTLOG_IS_DIR
	fd = open(lastlog, O_RDONLY);
	if (fd < 0)
		return 0;
	lseek(fd, (off_t) ((long) uid * sizeof(ll)), SEEK_SET);
#else /* LASTLOG_IS_DIR */
	snprintf(lbuf, sizeof(buf), "%s/%s", lastlog, logname);
	fd = open(lbuf, O_RDONLY);
	if (fd < 0)
		return 0;
#endif /* LASTLOG_IS_DIR */
	if (read(fd, &ll, sizeof(ll)) != sizeof(ll)) {
		close(fd);
		return 0;
	}
	close(fd);
	if (bufsize > sizeof(ll.ll_host) + 1)
		bufsize = sizeof(ll.ll_host) + 1;
	strncpy(buf, ll.ll_host, bufsize - 1);
	buf[bufsize - 1] = 0;
	return ll.ll_time;

#else /* defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG) */
# ifdef HAVE_TYPE_IN_UTMP
	/* Look in wtmp for the last login */
	struct utmp  wt;
	char        *wt_file = _PATH_WTMP;
	int         fd1;
	unsigned long t = 0;

	if ( (fd1 = open(wt_file, O_RDONLY)) < 0 ) {
		error("Couldn't open %.100s to find last login time.", wt_file);
		return 0;
	}

	/* seek to last record of file */
	lseek(fd1, (off_t)(0-sizeof(struct utmp)), SEEK_END);

	/* loop through wtmp for our last user login record */
	do {
		if (read(fd1, &wt, sizeof(wt)) != sizeof(wt)) {
			close(fd1);
			return 0;
		}

		if ( wt.ut_type == USER_PROCESS) {
			if ( !strncmp(logname, wt.ut_user, 8) ) {
				t = (unsigned long) wt.ut_time;
# ifdef HAVE_HOST_IN_UTMP
				if (bufsize > sizeof(wt.ut_host) + 1)
				bufsize = sizeof(wt.ut_host) + 1;
				strncpy(buf, wt.ut_host, bufsize - 1);
				buf[bufsize - 1] = 0;
# else /* HAVE_HOST_IN_UTMP */
				buf[0] = 0;
# endif /* HAVE_HOST_IN_UTMP */
			}
		}

		if (lseek(fd1, (off_t)(0-2*sizeof(struct utmp)), SEEK_CUR) == -1)
			break;
	} while (t == 0);

	return t;
# else
	return 0;
# endif /* HAVE_TYPE_IN_UTMP */
#endif /* defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG) */
}

/*
 * Records that the user has logged in.  I these parts of operating systems
 * were more standardized.
 */

void
record_login(pid_t pid, const char *ttyname, const char *user, uid_t uid,
	     const char *host, struct sockaddr * addr)
{
#if defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG)
	struct lastlog ll;
	char *lastlog;
#ifdef LASTLOG_IS_DIR
	char buf[1024];
#endif /* LASTLOG_IS_DIR */
#endif /* defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG) */
	struct utmp u;
#if defined(HAVE_UTMPX_H) && defined(USE_UTMPX)
	struct utmpx utx;
#endif

	/* Construct an utmp/wtmp entry. */
	memset(&u, 0, sizeof(u));
	strncpy(u.ut_line, ttyname + 5, sizeof(u.ut_line));
#if defined(HAVE_ID_IN_UTMP)
#ifdef _AIX
	strncpy(u.ut_id, ttyname + 5, sizeof(u.ut_id));
#else /* !AIX */
	strncpy(u.ut_id, ttyname + 8, sizeof(u.ut_id));
#endif
#endif /* defined(HAVE_ID_IN_UTMP) */ 
	strncpy(u.ut_name, user, sizeof(u.ut_name));
#if defined(HAVE_TV_IN_UTMP)
	(void)gettimeofday(&u.ut_tv, NULL);
#else /* defined(HAVE_TV_IN_UTMP) */
	u.ut_time = time(NULL);
#endif /* defined(HAVE_TV_IN_UTMP) */
#if defined(HAVE_PID_IN_UTMP)
	u.ut_pid = (pid_t)pid;
#endif /* HAVE_PID_IN_UTMP */
#if defined(HAVE_TYPE_IN_UTMP)
 	u.ut_type = (uid == -1)?DEAD_PROCESS:USER_PROCESS;
#endif /* HAVE_TYPE_IN_UTMP */
#if defined(HAVE_HOST_IN_UTMP)
	strncpy(u.ut_host, host, sizeof(u.ut_host));
#endif
#if defined(HAVE_ADDR_IN_UTMP)
	if (addr) {
		switch (addr->sa_family) {
			case AF_INET: {
				struct sockaddr_in *in = (struct sockaddr_in*)addr;
				memcpy(&(u.ut_addr), &(in->sin_addr), sizeof(&(in->sin_addr)));
				break;
			}
#if defined(HAVE_ADDR_V6_IN_UTMP)
			case AF_INET6: {
				struct sockaddr_in6 *in6 = (struct sockaddr_in6*)addr;
				memcpy(u.ut_addr_v6, &(in6->sin6_addr), sizeof(&(in6->sin6_addr)));
				break;
			}
#endif
			default:
				break;
		}
	}
#endif

#if defined(HAVE_UTMPX_H) && defined(USE_UTMPX)
	memset(&utx, 0, sizeof(utx));
	strncpy(utx.ut_user, user, sizeof(utx.ut_name));
	strncpy(utx.ut_line, ttyname + 5, sizeof(utx.ut_line));
	strncpy(utx.ut_id, ttyname + 8, sizeof(utx.ut_id));
	utx.ut_pid = (pid_t)pid;
	(void)gettimeofday(&utx.ut_tv, NULL);
 	utx.ut_type = (uid == -1)?DEAD_PROCESS:USER_PROCESS;
# ifdef HAVE_HOST_IN_UTMPX
#  ifdef HAVE_SYSLEN_IN_UTMPX
	utx.ut_syslen = strlen(host);
	strncpy(utx.ut_host, host, utx.ut_syslen);
#  else
	strncpy(utx.ut_host, host, sizeof(utx.ut_host));
#  endif /* HAVE_SYSLEN_IN_UTMPX */
# endif
#if defined(HAVE_ADDR_IN_UTMPX)
	if (addr) {
		switch (addr->sa_family) {
			case AF_INET: {
				struct sockaddr_in *in = (struct sockaddr_in*)addr;
				memcpy(&(utx.ut_addr), &(in->sin_addr), sizeof(&(in->sin_addr)));
				break;
			}
#if defined(HAVE_ADDR_V6_IN_UTMPX)
			case AF_INET6: {
				struct sockaddr_in6 *in6 = (struct sockaddr_in6*)addr;
				memcpy(utx.ut_addr_v6, &(in6->sin6_addr), sizeof(&(in6->sin6_addr)));
				break;
			}
#endif
			default:
				break;
		}
	}
#endif
#endif /* defined(HAVE_UTMPX_H) && defined(USE_UTMPX) */

/*#if defined(HAVE_UTMPX_H) && defined(USE_UTMPX) && !defined(HAVE_LOGIN)*/
#if defined(HAVE_UTMPX_H) && defined(USE_UTMPX)
	login(&u, &utx);
#else /* defined(HAVE_UTMPX_H) && defined(USE_UTMPX) */
	login(&u);
#endif /* defined(HAVE_UTMPX_H) && defined(USE_UTMPX) */

#if defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG)
	lastlog = _PATH_LASTLOG;

	/* Update lastlog unless actually recording a logout. */
	if (strcmp(user, "") != 0) {
		int fd;
		/*
		 * It is safer to bzero the lastlog structure first because
		 * some systems might have some extra fields in it (e.g. SGI)
		 */
		memset(&ll, 0, sizeof(ll));

		/* Update lastlog. */
		ll.ll_time = time(NULL);
		strncpy(ll.ll_line, ttyname + 5, sizeof(ll.ll_line));
		strncpy(ll.ll_host, host, sizeof(ll.ll_host));
#ifdef LASTLOG_IS_DIR
		snprintf(buf, sizeof(buf), "%s/%s", lastlog, user);
		fd = open(buf, O_RDWR);
		if (fd >= 0) {
#else /* LASTLOG_IS_DIR */
		fd = open(lastlog, O_RDWR);
		if (fd >= 0) {
			lseek(fd, (off_t) ((long) uid * sizeof(ll)), SEEK_SET);
#endif /* LASTLOG_IS_DIR */
			if (write(fd, &ll, sizeof(ll)) != sizeof(ll))
				log("Could not write %.100s: %.100s", lastlog, strerror(errno));
			close(fd);
		}
	}
#endif /* defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG) */
}

/* Records that the user has logged out. */

void
record_logout(pid_t pid, const char *ttyname)
{
#ifdef HAVE_LIBUTIL_LOGIN
	const char *line = ttyname + 5;	/* /dev/ttyq8 -> ttyq8 */
	if (logout(line))
		logwtmp(line, "", "");
#else /* HAVE_LIBUTIL_LOGIN */
	record_login(pid, ttyname, "", -1, "", NULL);
#endif /* HAVE_LIBUTIL_LOGIN */
}
Commit	Line	Data
8efc0c15	1	/*
6ae2364d	2	*
5260325f	3	* login.c
6ae2364d	4	*
5260325f	5	* Author: Tatu Ylonen <ylo@cs.hut.fi>
6ae2364d	6	*
5260325f	7	* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5260325f	8	* All rights reserved
6ae2364d	9	*
5260325f	10	* Created: Fri Mar 24 14:51:08 1995 ylo
6ae2364d	11	*
5260325f	12	* This file performs some of the things login(1) normally does. We cannot
	13	* easily use something like login -p -h host -f user, because there are
	14	* several different logins around, and it is hard to determined what kind of
	15	* login the current system has. Also, we want to be able to execute commands
	16	* on a tty.
6ae2364d	17	*
5260325f	18	*/
8efc0c15	19
	20	#include "includes.h"
	21	RCSID("$Id$");
	22
92f90c57	23	#if defined(HAVE_UTMPX_H) && defined(USE_UTMPX)
8946db53	24	# include <utmpx.h>
	25	#endif
	26	#ifdef HAVE_UTMP_H
	27	# include <utmp.h>
	28	#endif
5260325f	29	#include "ssh.h"
4cca272e	30
5260325f	31	#ifdef HAVE_UTIL_H
	32	# include <util.h>
	33	#endif
4cca272e	34	#ifdef HAVE_LASTLOG_H
	35	# include <lastlog.h>
	36	#endif
09041313	37	#ifdef HAVE_LOGIN_H
	38	# include <login.h>
	39	#endif
4cca272e	40
aa3378df	41	/*
	42	* Returns the time when the user last logged in. Returns 0 if the
	43	* information is not available. This must be called before record_login.
	44	* The host the user logged in from will be returned in buf.
	45	*/
8efc0c15	46
aa3378df	47	/*
	48	* Returns the time when the user last logged in (or 0 if no previous login
	49	* is found). The name of the host used last time is returned in buf.
	50	*/
8efc0c15	51
6ae2364d	52	unsigned long
5260325f	53	get_last_login_time(uid_t uid, const char *logname,
5260325f	54	char *buf, unsigned int bufsize)
8efc0c15	55	{
ae28776a	56	#if defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG)
5260325f	57	struct lastlog ll;
	58	char *lastlog;
	59	int fd;
76a8e733	60	#ifdef LASTLOG_IS_DIR
12aa90af	61	char lbuf[1024];
76a8e733	62	#endif /* LASTLOG_IS_DIR */
5260325f	63
	64	lastlog = _PATH_LASTLOG;
	65	buf[0] = '\0';
	66
12aa90af	67	#ifndef LASTLOG_IS_DIR
5260325f	68	fd = open(lastlog, O_RDONLY);
	69	if (fd < 0)
	70	return 0;
	71	lseek(fd, (off_t) ((long) uid * sizeof(ll)), SEEK_SET);
76a8e733	72	#else /* LASTLOG_IS_DIR */
12aa90af	73	snprintf(lbuf, sizeof(buf), "%s/%s", lastlog, logname);
12aa90af	74	fd = open(lbuf, O_RDONLY);
76a8e733	75	if (fd < 0)
	76	return 0;
	77	#endif /* LASTLOG_IS_DIR */
5260325f	78	if (read(fd, &ll, sizeof(ll)) != sizeof(ll)) {
	79	close(fd);
	80	return 0;
	81	}
	82	close(fd);
	83	if (bufsize > sizeof(ll.ll_host) + 1)
	84	bufsize = sizeof(ll.ll_host) + 1;
	85	strncpy(buf, ll.ll_host, bufsize - 1);
	86	buf[bufsize - 1] = 0;
	87	return ll.ll_time;
a7effaac	88
ae28776a	89	#else /* defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG) */
ad85db64	90	# ifdef HAVE_TYPE_IN_UTMP
a7effaac	91	/* Look in wtmp for the last login */
	92	struct utmp wt;
	93	char *wt_file = _PATH_WTMP;
	94	int fd1;
	95	unsigned long t = 0;
	96
	97	if ( (fd1 = open(wt_file, O_RDONLY)) < 0 ) {
	98	error("Couldn't open %.100s to find last login time.", wt_file);
	99	return 0;
	100	}
	101
	102	/* seek to last record of file */
	103	lseek(fd1, (off_t)(0-sizeof(struct utmp)), SEEK_END);
	104
	105	/* loop through wtmp for our last user login record */
	106	do {
	107	if (read(fd1, &wt, sizeof(wt)) != sizeof(wt)) {
	108	close(fd1);
	109	return 0;
	110	}
	111
	112	if ( wt.ut_type == USER_PROCESS) {
	113	if ( !strncmp(logname, wt.ut_user, 8) ) {
	114	t = (unsigned long) wt.ut_time;
ad85db64	115	# ifdef HAVE_HOST_IN_UTMP
a7effaac	116	if (bufsize > sizeof(wt.ut_host) + 1)
	117	bufsize = sizeof(wt.ut_host) + 1;
	118	strncpy(buf, wt.ut_host, bufsize - 1);
	119	buf[bufsize - 1] = 0;
ad85db64	120	# else /* HAVE_HOST_IN_UTMP */
ae28776a	121	buf[0] = 0;
ad85db64	122	# endif /* HAVE_HOST_IN_UTMP */
a7effaac	123	}
	124	}
	125
	126	if (lseek(fd1, (off_t)(0-2*sizeof(struct utmp)), SEEK_CUR) == -1)
	127	break;
	128	} while (t == 0);
	129
	130	return t;
ad85db64	131	# else
	132	return 0;
	133	# endif /* HAVE_TYPE_IN_UTMP */
ae28776a	134	#endif /* defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG) */
8efc0c15	135	}
8efc0c15	136
aa3378df	137	/*
	138	* Records that the user has logged in. I these parts of operating systems
	139	* were more standardized.
	140	*/
8efc0c15	141
6ae2364d	142	void
9da5c3c9	143	record_login(pid_t pid, const char ttyname, const char user, uid_t uid,
48e671d5	144	const char host, struct sockaddr addr)
8efc0c15	145	{
ae28776a	146	#if defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG)
5260325f	147	struct lastlog ll;
5260325f	148	char *lastlog;
76a8e733	149	#ifdef LASTLOG_IS_DIR
	150	char buf[1024];
	151	#endif /* LASTLOG_IS_DIR */
ae28776a	152	#endif /* defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG) */
f498ed15	153	struct utmp u;
	154	#if defined(HAVE_UTMPX_H) && defined(USE_UTMPX)
	155	struct utmpx utx;
	156	#endif
5260325f	157
	158	/* Construct an utmp/wtmp entry. */
	159	memset(&u, 0, sizeof(u));
	160	strncpy(u.ut_line, ttyname + 5, sizeof(u.ut_line));
c73a0cb5	161	#if defined(HAVE_ID_IN_UTMP)
0d5f7abc	162	#ifdef _AIX
	163	strncpy(u.ut_id, ttyname + 5, sizeof(u.ut_id));
	164	#else /* !AIX */
21feb5fa	165	strncpy(u.ut_id, ttyname + 8, sizeof(u.ut_id));
0d5f7abc	166	#endif
c73a0cb5	167	#endif /* defined(HAVE_ID_IN_UTMP) */
5260325f	168	strncpy(u.ut_name, user, sizeof(u.ut_name));
70e0115b	169	#if defined(HAVE_TV_IN_UTMP)
	170	(void)gettimeofday(&u.ut_tv, NULL);
	171	#else /* defined(HAVE_TV_IN_UTMP) */
	172	u.ut_time = time(NULL);
	173	#endif /* defined(HAVE_TV_IN_UTMP) */
	174	#if defined(HAVE_PID_IN_UTMP)
	175	u.ut_pid = (pid_t)pid;
	176	#endif /* HAVE_PID_IN_UTMP */
	177	#if defined(HAVE_TYPE_IN_UTMP)
f498ed15	178	u.ut_type = (uid == -1)?DEAD_PROCESS:USER_PROCESS;
70e0115b	179	#endif /* HAVE_TYPE_IN_UTMP */
f498ed15	180	#if defined(HAVE_HOST_IN_UTMP)
5260325f	181	strncpy(u.ut_host, host, sizeof(u.ut_host));
4cca272e	182	#endif
4811cc0b	183	#if defined(HAVE_ADDR_IN_UTMP)
bfae20ad	184	if (addr) {
	185	switch (addr->sa_family) {
	186	case AF_INET: {
	187	struct sockaddr_in in = (struct sockaddr_in)addr;
	188	memcpy(&(u.ut_addr), &(in->sin_addr), sizeof(&(in->sin_addr)));
	189	break;
	190	}
48e671d5	191	#if defined(HAVE_ADDR_V6_IN_UTMP)
bfae20ad	192	case AF_INET6: {
	193	struct sockaddr_in6 in6 = (struct sockaddr_in6)addr;
	194	memcpy(u.ut_addr_v6, &(in6->sin6_addr), sizeof(&(in6->sin6_addr)));
	195	break;
	196	}
48e671d5	197	#endif
bfae20ad	198	default:
	199	break;
	200	}
48e671d5	201	}
4811cc0b	202	#endif
8efc0c15	203
f498ed15	204	#if defined(HAVE_UTMPX_H) && defined(USE_UTMPX)
	205	memset(&utx, 0, sizeof(utx));
	206	strncpy(utx.ut_user, user, sizeof(utx.ut_name));
	207	strncpy(utx.ut_line, ttyname + 5, sizeof(utx.ut_line));
21feb5fa	208	strncpy(utx.ut_id, ttyname + 8, sizeof(utx.ut_id));
f498ed15	209	utx.ut_pid = (pid_t)pid;
70e0115b	210	(void)gettimeofday(&utx.ut_tv, NULL);
f74efc8d	211	utx.ut_type = (uid == -1)?DEAD_PROCESS:USER_PROCESS;
	212	# ifdef HAVE_HOST_IN_UTMPX
	213	# ifdef HAVE_SYSLEN_IN_UTMPX
f498ed15	214	utx.ut_syslen = strlen(host);
f74efc8d	215	strncpy(utx.ut_host, host, utx.ut_syslen);
f74efc8d	216	# else
f498ed15	217	strncpy(utx.ut_host, host, sizeof(utx.ut_host));
f74efc8d	218	# endif /* HAVE_SYSLEN_IN_UTMPX */
f74efc8d	219	# endif
48e671d5	220	#if defined(HAVE_ADDR_IN_UTMPX)
aaf2abd7	221	if (addr) {
bfae20ad	222	switch (addr->sa_family) {
	223	case AF_INET: {
	224	struct sockaddr_in in = (struct sockaddr_in)addr;
	225	memcpy(&(utx.ut_addr), &(in->sin_addr), sizeof(&(in->sin_addr)));
	226	break;
	227	}
48e671d5	228	#if defined(HAVE_ADDR_V6_IN_UTMPX)
bfae20ad	229	case AF_INET6: {
	230	struct sockaddr_in6 in6 = (struct sockaddr_in6)addr;
	231	memcpy(utx.ut_addr_v6, &(in6->sin6_addr), sizeof(&(in6->sin6_addr)));
	232	break;
	233	}
48e671d5	234	#endif
bfae20ad	235	default:
	236	break;
	237	}
48e671d5	238	}
48e671d5	239	#endif
f498ed15	240	#endif /* defined(HAVE_UTMPX_H) && defined(USE_UTMPX) */
5260325f	241
f74efc8d	242	/#if defined(HAVE_UTMPX_H) && defined(USE_UTMPX) && !defined(HAVE_LOGIN)/
f74efc8d	243	#if defined(HAVE_UTMPX_H) && defined(USE_UTMPX)
f498ed15	244	login(&u, &utx);
f498ed15	245	#else /* defined(HAVE_UTMPX_H) && defined(USE_UTMPX) */
5260325f	246	login(&u);
f498ed15	247	#endif /* defined(HAVE_UTMPX_H) && defined(USE_UTMPX) */
a7effaac	248
ae28776a	249	#if defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG)
5260325f	250	lastlog = _PATH_LASTLOG;
	251
	252	/* Update lastlog unless actually recording a logout. */
	253	if (strcmp(user, "") != 0) {
a7effaac	254	int fd;
aa3378df	255	/*
	256	* It is safer to bzero the lastlog structure first because
	257	* some systems might have some extra fields in it (e.g. SGI)
	258	*/
5260325f	259	memset(&ll, 0, sizeof(ll));
	260
	261	/* Update lastlog. */
	262	ll.ll_time = time(NULL);
	263	strncpy(ll.ll_line, ttyname + 5, sizeof(ll.ll_line));
	264	strncpy(ll.ll_host, host, sizeof(ll.ll_host));
76a8e733	265	#ifdef LASTLOG_IS_DIR
9d5f374b	266	snprintf(buf, sizeof(buf), "%s/%s", lastlog, user);
76a8e733	267	fd = open(buf, O_RDWR);
	268	if (fd >= 0) {
	269	#else /* LASTLOG_IS_DIR */
5260325f	270	fd = open(lastlog, O_RDWR);
	271	if (fd >= 0) {
	272	lseek(fd, (off_t) ((long) uid * sizeof(ll)), SEEK_SET);
76a8e733	273	#endif /* LASTLOG_IS_DIR */
5260325f	274	if (write(fd, &ll, sizeof(ll)) != sizeof(ll))
	275	log("Could not write %.100s: %.100s", lastlog, strerror(errno));
	276	close(fd);
	277	}
8efc0c15	278	}
ae28776a	279	#endif /* defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG) */
8efc0c15	280	}
5260325f	281
	282	/* Records that the user has logged out. */
	283
6ae2364d	284	void
9da5c3c9	285	record_logout(pid_t pid, const char *ttyname)
8efc0c15	286	{
4cca272e	287	#ifdef HAVE_LIBUTIL_LOGIN
5260325f	288	const char line = ttyname + 5; / /dev/ttyq8 -> ttyq8 */
	289	if (logout(line))
	290	logwtmp(line, "", "");
4cca272e	291	#else /* HAVE_LIBUTIL_LOGIN */
5260325f	292	record_login(pid, ttyname, "", -1, "", NULL);
4cca272e	293	#endif /* HAVE_LIBUTIL_LOGIN */
8efc0c15	294	}