libptytty/src/logging.C

// This file is part of libptytty. Do not make local modifications.
// http://software.schmorp.de/pkg/libptytty

/*----------------------------------------------------------------------*
 * File:        logging.C
 *----------------------------------------------------------------------*
 *
 * All portions of code are copyright by their respective author/s.
 * Copyright (c) 1992      John Bovey <jdb@ukc.ac.uk>
 *                              - original version
 * Copyright (c) 1993      lipka
 * Copyright (c) 1993      Brian Stempien <stempien@cs.wmich.edu>
 * Copyright (c) 1995      Raul Garcia Garcia <rgg@tid.es>
 * Copyright (c) 1995      Piet W. Plomp <piet@idefix.icce.rug.nl>
 * Copyright (c) 1997      Raul Garcia Garcia <rgg@tid.es>
 * Copyright (c) 1998-2001 Geoff Wing <gcw@pobox.com>
 *                              - extensive modifications
 * Copyright (c) 1999      D J Hawkey Jr <hawkeyd@visi.com>
 *                              - lastlog support
 * Copyright (c) 2004-2006 Marc Lehmann <schmorp@schmorp.de>
 * Copyright (c) 2006      Emanuele Giaquinta <e.giaquinta@glauco.it>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *----------------------------------------------------------------------*/

#include "config.h"

#include "ptytty.h"

#if UTMP_SUPPORT

#include <cstdio>
#include <cstring>

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <time.h>
#include <errno.h>

/*
 * BSD style utmp entry
 *      ut_line, ut_name, ut_host, ut_time
 * SYSV style utmp (and utmpx) entry
 *      ut_user, ut_id, ut_line, ut_pid, ut_type, ut_exit, ut_time
 */

/* ------------------------------------------------------------------------- */
/*
 * Write a BSD style utmp entry
 */
#if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID)
static void
write_bsd_utmp (int utmp_pos, struct utmp *ut)
{
  int             fd;

  if (utmp_pos <= 0 || (fd = open (UTMP_FILE, O_WRONLY)) == -1)
    return;

  if (lseek (fd, (off_t) (utmp_pos * sizeof (struct utmp)), SEEK_SET) != -1)
    write (fd, ut, sizeof (struct utmp));
  close (fd);
}
#endif

/* ------------------------------------------------------------------------- */
/*
 * Update a BSD style wtmp entry
 */
#if defined(WTMP_SUPPORT) && !defined(HAVE_UPDWTMP) && defined(HAVE_STRUCT_UTMP)
static void
update_wtmp (const char *fname, const struct utmp *ut)
{
  int             fd, gotlock, retry;
  struct flock    lck;  /* fcntl locking scheme */
  struct stat     sbuf;

  if ((fd = open (fname, O_WRONLY | O_APPEND, 0)) < 0)
    return;

  lck.l_whence = SEEK_END;      /* start lock at current eof */
  lck.l_len = 0;                /* end at ``largest possible eof'' */
  lck.l_start = 0;
  lck.l_type = F_WRLCK; /* we want a write lock */

  /* attempt lock with F_SETLK; F_SETLKW would cause a deadlock! */
  for (retry = 10, gotlock = 0; retry--;)
    if (fcntl (fd, F_SETLK, &lck) != -1)
      {
        gotlock = 1;
        break;
      }
    else if (errno != EAGAIN && errno != EACCES)
      break;
  if (!gotlock)
    {
      /* give it up */
      close (fd);
      return;
    }
  if (fstat (fd, &sbuf) == 0)
    if (write (fd, ut, sizeof (struct utmp)) != sizeof (struct utmp))
      ftruncate (fd, sbuf.st_size);     /* remove bad writes */

  lck.l_type = F_UNLCK; /* unlocking the file */
  fcntl (fd, F_SETLK, &lck);
  close (fd);
}
#endif

/* ------------------------------------------------------------------------- */
#ifdef LASTLOG_SUPPORT
static void
update_lastlog (const char *pty, const char *host)
{
# if defined(HAVE_STRUCT_LASTLOGX) && defined(HAVE_UPDLASTLOGX)
  struct lastlogx llx;
# endif
# ifdef HAVE_STRUCT_LASTLOG
  int             fd;
  struct lastlog  ll;
  struct passwd  *pwent;
# endif

# if defined(HAVE_STRUCT_LASTLOGX) && defined(HAVE_UPDLASTLOGX)
  memset (&llx, 0, sizeof (llx));
  llx.ll_tv.tv_sec = time (NULL);
  llx.ll_tv.tv_usec = 0;
  strncpy (llx.ll_line, pty, sizeof (llx.ll_line));
  strncpy (llx.ll_host, host, sizeof (llx.ll_host));
  updlastlogx (LASTLOGX_FILE, getuid (), &llx);
# endif

# ifdef HAVE_STRUCT_LASTLOG
  pwent = getpwuid (getuid ());
  if (!pwent)
    {
      PTYTTY_WARN ("no entry in password file, not updating lastlog.\n", 0);
      return;
    }

  memset (&ll, 0, sizeof (ll));
  ll.ll_time = time (NULL);
  strncpy (ll.ll_line, pty, sizeof (ll.ll_line));
  strncpy (ll.ll_host, host, sizeof (ll.ll_host));
  if ((fd = open (LASTLOG_FILE, O_RDWR)) != -1)
    {
      if (lseek (fd, (off_t) ((long)pwent->pw_uid * sizeof (ll)),
                 SEEK_SET) != -1)
        write (fd, &ll, sizeof (ll));
      close (fd);
    }
# endif /* HAVE_STRUCT_LASTLOG */
}
#endif /* LASTLOG_SUPPORT */

#if defined(HAVE_UTMP_PID) || defined(HAVE_STRUCT_UTMPX)
static void
fill_id (char *id, const char *line, size_t id_size)
{
  size_t len = strlen (line);

  if (len > id_size)
    line += len - id_size;
  strncpy (id, line, id_size);
}
#endif

#ifdef HAVE_STRUCT_UTMP
static void
fill_utmp (struct utmp *ut, bool login, int pid, const char *line, const char *user, const char *host)
{
  memset (ut, 0, sizeof (struct utmp));

  strncpy (ut->ut_line, line, sizeof (ut->ut_line));
# ifdef HAVE_UTMP_PID
  fill_id (ut->ut_id, line, sizeof (ut->ut_id));
  ut->ut_pid = pid;
  ut->ut_type = login ? USER_PROCESS : DEAD_PROCESS;
# endif
  ut->ut_time = time (NULL);

  if (login)
    {
# ifdef HAVE_UTMP_PID
      strncpy (ut->ut_user, user, sizeof (ut->ut_user));
# else
      strncpy (ut->ut_name, user, sizeof (ut->ut_name));
# endif
# ifdef HAVE_UTMP_HOST
      strncpy (ut->ut_host, host, sizeof (ut->ut_host));
# endif
    }
}
#endif

#ifdef HAVE_STRUCT_UTMPX
static void
fill_utmpx (struct utmpx *utx, bool login, int pid, const char *line, const char *user, const char *host)
{
  memset (utx, 0, sizeof (struct utmpx));

  // posix says that ut_line is not meaningful for DEAD_PROCESS
  // records, but most implementations of last use ut_line to
  // associate records in wtmp file
  strncpy (utx->ut_line, line, sizeof (utx->ut_line));
  fill_id (utx->ut_id, line, sizeof (utx->ut_id));
  utx->ut_pid = pid;
  utx->ut_type = login ? USER_PROCESS : DEAD_PROCESS;
  utx->ut_tv.tv_sec = time (NULL);
  utx->ut_tv.tv_usec = 0;
# if HAVE_UTMPX_SESSION
  utx->ut_session = getsid (0);
# endif

  if (login)
    {
      strncpy (utx->ut_user, user, sizeof (utx->ut_user));
# ifdef HAVE_UTMPX_HOST
      strncpy (utx->ut_host, host, sizeof (utx->ut_host));
# endif
    }
}
#endif

/* ------------------------------------------------------------------------- */

/*
 * make and write utmp and wtmp entries
 */
void
ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
{
  const char *pty = name;

  if (!pty || !*pty)
    return;

  this->cmd_pid     = cmd_pid;
  this->login_shell = login_shell;

  struct passwd *pwent = getpwuid (getuid ());
  const char *user = (pwent && pwent->pw_name) ? pwent->pw_name : "?";

  if (!strncmp (pty, "/dev/", 5))
    pty += 5;           /* skip /dev/ prefix */

#ifdef HAVE_STRUCT_UTMP
  struct utmp *ut = &this->ut;
  fill_utmp (ut, true, cmd_pid, pty, user, hostname);
#endif

#ifdef HAVE_STRUCT_UTMPX
  struct utmpx *utx = &this->utx;
  fill_utmpx (utx, true, cmd_pid, pty, user, hostname);
#endif

#ifdef HAVE_STRUCT_UTMP
# ifdef HAVE_UTMP_PID
  setutent ();
  pututline (ut);
  endutent ();
# else
  int fd_stdin = dup (STDIN_FILENO);
  dup2 (tty, STDIN_FILENO);

  utmp_pos = ttyslot ();
  write_bsd_utmp (utmp_pos, ut);

  dup2 (fd_stdin, STDIN_FILENO);
  close (fd_stdin);
# endif
#endif

#ifdef HAVE_STRUCT_UTMPX
  setutxent ();
  pututxline (utx);
  endutxent ();
#endif

#ifdef WTMP_SUPPORT
#ifdef LOG_ONLY_ON_LOGIN
  if (login_shell)
#endif
    {
# ifdef HAVE_STRUCT_UTMP
#  ifdef HAVE_UPDWTMP
      updwtmp (WTMP_FILE, ut);
#  else
      update_wtmp (WTMP_FILE, ut);
#  endif
# endif
# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
      updwtmpx (WTMPX_FILE, utx);
# endif
    }
#endif
#ifdef LASTLOG_SUPPORT
#ifdef LOG_ONLY_ON_LOGIN
  if (login_shell)
#endif
    update_lastlog (pty, hostname);
#endif
}

/* ------------------------------------------------------------------------- */
/*
 * remove utmp and wtmp entries
 */
void
ptytty_unix::logout ()
{
  if (!cmd_pid)
    return;

  const char *pty = name;

  if (!strncmp (pty, "/dev/", 5))
    pty += 5;

#ifdef HAVE_STRUCT_UTMP
  struct utmp *tmput, *ut = &this->ut;
  fill_utmp (ut, false, cmd_pid, pty, 0, 0);
#endif

#ifdef HAVE_STRUCT_UTMPX
  struct utmpx *tmputx, *utx = &this->utx;
  fill_utmpx (utx, false, cmd_pid, pty, 0, 0);
#endif

  /*
   * Write ending wtmp entry
   */
#ifdef WTMP_SUPPORT
#ifdef LOG_ONLY_ON_LOGIN
  if (login_shell)
#endif
    {
# ifdef HAVE_STRUCT_UTMP
#  ifdef HAVE_UPDWTMP
      updwtmp (WTMP_FILE, ut);
#  else
      update_wtmp (WTMP_FILE, ut);
#  endif
# endif
# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
      updwtmpx (WTMPX_FILE, utx);
# endif
    }
#endif

  /*
   * Write utmp entry
   */
#ifdef HAVE_STRUCT_UTMP
# ifdef HAVE_UTMP_PID
  setutent ();
  tmput = getutid (ut);
  if (tmput && tmput->ut_pid == cmd_pid)
    pututline (ut);
  endutent ();
# else
  write_bsd_utmp (utmp_pos, ut);
# endif
#endif

#ifdef HAVE_STRUCT_UTMPX
  setutxent ();
  tmputx = getutxid (utx);
  if (tmputx && tmputx->ut_pid == cmd_pid)
    {
      // posix says that ut_user is not meaningful for DEAD_PROCESS
      // records, but solaris utmp_update helper requires that the ut_user
      // field of a DEAD_PROCESS entry matches the one of an existing
      // USER_PROCESS entry for the same line, if any
      strncpy (utx->ut_user, tmputx->ut_user, sizeof (utx->ut_user));
      pututxline (utx);
    }
  endutxent ();
#endif

  cmd_pid = 0;
}

#else
void
ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
{
}
#endif

Revision:	1.53
Committed:	Thu Nov 17 11:59:54 2011 UTC (14 years, 10 months ago) by sf-exg
Content type:	text/plain
Branch:	MAIN
Changes since 1.52:	+3 -5 lines
Log Message:	Simplify. Avoiding an open when the utmp file cannot be opened is not worth the extra conditional.
#	Content
1	// This file is part of libptytty. Do not make local modifications.
2	// http://software.schmorp.de/pkg/libptytty
3
4	/----------------------------------------------------------------------
5	* File: logging.C
6	----------------------------------------------------------------------
7	*
8	* All portions of code are copyright by their respective author/s.
9	* Copyright (c) 1992 John Bovey <jdb@ukc.ac.uk>
10	* - original version
11	* Copyright (c) 1993 lipka
12	* Copyright (c) 1993 Brian Stempien <stempien@cs.wmich.edu>
13	* Copyright (c) 1995 Raul Garcia Garcia <rgg@tid.es>
14	* Copyright (c) 1995 Piet W. Plomp <piet@idefix.icce.rug.nl>
15	* Copyright (c) 1997 Raul Garcia Garcia <rgg@tid.es>
16	* Copyright (c) 1998-2001 Geoff Wing <gcw@pobox.com>
17	* - extensive modifications
18	* Copyright (c) 1999 D J Hawkey Jr <hawkeyd@visi.com>
19	* - lastlog support
20	* Copyright (c) 2004-2006 Marc Lehmann <schmorp@schmorp.de>
21	* Copyright (c) 2006 Emanuele Giaquinta <e.giaquinta@glauco.it>
22	*
23	* This program is free software; you can redistribute it and/or modify
24	* it under the terms of the GNU General Public License as published by
25	* the Free Software Foundation; either version 2 of the License, or
26	* (at your option) any later version.
27	*
28	* This program is distributed in the hope that it will be useful,
29	* but WITHOUT ANY WARRANTY; without even the implied warranty of
30	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
31	* GNU General Public License for more details.
32	*
33	* You should have received a copy of the GNU General Public License
34	* along with this program; if not, write to the Free Software
35	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
36	----------------------------------------------------------------------/
37
38	#include "config.h"
39
40	#include "ptytty.h"
41
42	#if UTMP_SUPPORT
43
44	#include <cstdio>
45	#include <cstring>
46
47	#include <sys/types.h>
48	#include <sys/stat.h>
49	#include <fcntl.h>
50	#include <unistd.h>
51	#include <time.h>
52	#include <errno.h>
53
54	/*
55	* BSD style utmp entry
56	* ut_line, ut_name, ut_host, ut_time
57	* SYSV style utmp (and utmpx) entry
58	* ut_user, ut_id, ut_line, ut_pid, ut_type, ut_exit, ut_time
59	*/
60
61	/* ------------------------------------------------------------------------- */
62	/*
63	* Write a BSD style utmp entry
64	*/
65	#if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID)
66	static void
67	write_bsd_utmp (int utmp_pos, struct utmp *ut)
68	{
69	int fd;
70
71	if (utmp_pos <= 0 \|\| (fd = open (UTMP_FILE, O_WRONLY)) == -1)
72	return;
73
74	if (lseek (fd, (off_t) (utmp_pos * sizeof (struct utmp)), SEEK_SET) != -1)
75	write (fd, ut, sizeof (struct utmp));
76	close (fd);
77	}
78	#endif
79
80	/* ------------------------------------------------------------------------- */
81	/*
82	* Update a BSD style wtmp entry
83	*/
84	#if defined(WTMP_SUPPORT) && !defined(HAVE_UPDWTMP) && defined(HAVE_STRUCT_UTMP)
85	static void
86	update_wtmp (const char fname, const struct utmp ut)
87	{
88	int fd, gotlock, retry;
89	struct flock lck; /* fcntl locking scheme */
90	struct stat sbuf;
91
92	if ((fd = open (fname, O_WRONLY \| O_APPEND, 0)) < 0)
93	return;
94
95	lck.l_whence = SEEK_END; /* start lock at current eof */
96	lck.l_len = 0; /* end at ``largest possible eof'' */
97	lck.l_start = 0;
98	lck.l_type = F_WRLCK; /* we want a write lock */
99
100	/* attempt lock with F_SETLK; F_SETLKW would cause a deadlock! */
101	for (retry = 10, gotlock = 0; retry--;)
102	if (fcntl (fd, F_SETLK, &lck) != -1)
103	{
104	gotlock = 1;
105	break;
106	}
107	else if (errno != EAGAIN && errno != EACCES)
108	break;
109	if (!gotlock)
110	{
111	/* give it up */
112	close (fd);
113	return;
114	}
115	if (fstat (fd, &sbuf) == 0)
116	if (write (fd, ut, sizeof (struct utmp)) != sizeof (struct utmp))
117	ftruncate (fd, sbuf.st_size); /* remove bad writes */
118
119	lck.l_type = F_UNLCK; /* unlocking the file */
120	fcntl (fd, F_SETLK, &lck);
121	close (fd);
122	}
123	#endif
124
125	/* ------------------------------------------------------------------------- */
126	#ifdef LASTLOG_SUPPORT
127	static void
128	update_lastlog (const char pty, const char host)
129	{
130	# if defined(HAVE_STRUCT_LASTLOGX) && defined(HAVE_UPDLASTLOGX)
131	struct lastlogx llx;
132	# endif
133	# ifdef HAVE_STRUCT_LASTLOG
134	int fd;
135	struct lastlog ll;
136	struct passwd *pwent;
137	# endif
138
139	# if defined(HAVE_STRUCT_LASTLOGX) && defined(HAVE_UPDLASTLOGX)
140	memset (&llx, 0, sizeof (llx));
141	llx.ll_tv.tv_sec = time (NULL);
142	llx.ll_tv.tv_usec = 0;
143	strncpy (llx.ll_line, pty, sizeof (llx.ll_line));
144	strncpy (llx.ll_host, host, sizeof (llx.ll_host));
145	updlastlogx (LASTLOGX_FILE, getuid (), &llx);
146	# endif
147
148	# ifdef HAVE_STRUCT_LASTLOG
149	pwent = getpwuid (getuid ());
150	if (!pwent)
151	{
152	PTYTTY_WARN ("no entry in password file, not updating lastlog.\n", 0);
153	return;
154	}
155
156	memset (&ll, 0, sizeof (ll));
157	ll.ll_time = time (NULL);
158	strncpy (ll.ll_line, pty, sizeof (ll.ll_line));
159	strncpy (ll.ll_host, host, sizeof (ll.ll_host));
160	if ((fd = open (LASTLOG_FILE, O_RDWR)) != -1)
161	{
162	if (lseek (fd, (off_t) ((long)pwent->pw_uid * sizeof (ll)),
163	SEEK_SET) != -1)
164	write (fd, &ll, sizeof (ll));
165	close (fd);
166	}
167	# endif /* HAVE_STRUCT_LASTLOG */
168	}
169	#endif /* LASTLOG_SUPPORT */
170
171	#if defined(HAVE_UTMP_PID) \|\| defined(HAVE_STRUCT_UTMPX)
172	static void
173	fill_id (char id, const char line, size_t id_size)
174	{
175	size_t len = strlen (line);
176
177	if (len > id_size)
178	line += len - id_size;
179	strncpy (id, line, id_size);
180	}
181	#endif
182
183	#ifdef HAVE_STRUCT_UTMP
184	static void
185	fill_utmp (struct utmp ut, bool login, int pid, const char line, const char user, const char host)
186	{
187	memset (ut, 0, sizeof (struct utmp));
188
189	strncpy (ut->ut_line, line, sizeof (ut->ut_line));
190	# ifdef HAVE_UTMP_PID
191	fill_id (ut->ut_id, line, sizeof (ut->ut_id));
192	ut->ut_pid = pid;
193	ut->ut_type = login ? USER_PROCESS : DEAD_PROCESS;
194	# endif
195	ut->ut_time = time (NULL);
196
197	if (login)
198	{
199	# ifdef HAVE_UTMP_PID
200	strncpy (ut->ut_user, user, sizeof (ut->ut_user));
201	# else
202	strncpy (ut->ut_name, user, sizeof (ut->ut_name));
203	# endif
204	# ifdef HAVE_UTMP_HOST
205	strncpy (ut->ut_host, host, sizeof (ut->ut_host));
206	# endif
207	}
208	}
209	#endif
210
211	#ifdef HAVE_STRUCT_UTMPX
212	static void
213	fill_utmpx (struct utmpx utx, bool login, int pid, const char line, const char user, const char host)
214	{
215	memset (utx, 0, sizeof (struct utmpx));
216
217	// posix says that ut_line is not meaningful for DEAD_PROCESS
218	// records, but most implementations of last use ut_line to
219	// associate records in wtmp file
220	strncpy (utx->ut_line, line, sizeof (utx->ut_line));
221	fill_id (utx->ut_id, line, sizeof (utx->ut_id));
222	utx->ut_pid = pid;
223	utx->ut_type = login ? USER_PROCESS : DEAD_PROCESS;
224	utx->ut_tv.tv_sec = time (NULL);
225	utx->ut_tv.tv_usec = 0;
226	# if HAVE_UTMPX_SESSION
227	utx->ut_session = getsid (0);
228	# endif
229
230	if (login)
231	{
232	strncpy (utx->ut_user, user, sizeof (utx->ut_user));
233	# ifdef HAVE_UTMPX_HOST
234	strncpy (utx->ut_host, host, sizeof (utx->ut_host));
235	# endif
236	}
237	}
238	#endif
239
240	/* ------------------------------------------------------------------------- */
241
242	/*
243	* make and write utmp and wtmp entries
244	*/
245	void
246	ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
247	{
248	const char *pty = name;
249
250	if (!pty \|\| !*pty)
251	return;
252
253	this->cmd_pid = cmd_pid;
254	this->login_shell = login_shell;
255
256	struct passwd *pwent = getpwuid (getuid ());
257	const char *user = (pwent && pwent->pw_name) ? pwent->pw_name : "?";
258
259	if (!strncmp (pty, "/dev/", 5))
260	pty += 5; /* skip /dev/ prefix */
261
262	#ifdef HAVE_STRUCT_UTMP
263	struct utmp *ut = &this->ut;
264	fill_utmp (ut, true, cmd_pid, pty, user, hostname);
265	#endif
266
267	#ifdef HAVE_STRUCT_UTMPX
268	struct utmpx *utx = &this->utx;
269	fill_utmpx (utx, true, cmd_pid, pty, user, hostname);
270	#endif
271
272	#ifdef HAVE_STRUCT_UTMP
273	# ifdef HAVE_UTMP_PID
274	setutent ();
275	pututline (ut);
276	endutent ();
277	# else
278	int fd_stdin = dup (STDIN_FILENO);
279	dup2 (tty, STDIN_FILENO);
280
281	utmp_pos = ttyslot ();
282	write_bsd_utmp (utmp_pos, ut);
283
284	dup2 (fd_stdin, STDIN_FILENO);
285	close (fd_stdin);
286	# endif
287	#endif
288
289	#ifdef HAVE_STRUCT_UTMPX
290	setutxent ();
291	pututxline (utx);
292	endutxent ();
293	#endif
294
295	#ifdef WTMP_SUPPORT
296	#ifdef LOG_ONLY_ON_LOGIN
297	if (login_shell)
298	#endif
299	{
300	# ifdef HAVE_STRUCT_UTMP
301	# ifdef HAVE_UPDWTMP
302	updwtmp (WTMP_FILE, ut);
303	# else
304	update_wtmp (WTMP_FILE, ut);
305	# endif
306	# endif
307	# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
308	updwtmpx (WTMPX_FILE, utx);
309	# endif
310	}
311	#endif
312	#ifdef LASTLOG_SUPPORT
313	#ifdef LOG_ONLY_ON_LOGIN
314	if (login_shell)
315	#endif
316	update_lastlog (pty, hostname);
317	#endif
318	}
319
320	/* ------------------------------------------------------------------------- */
321	/*
322	* remove utmp and wtmp entries
323	*/
324	void
325	ptytty_unix::logout ()
326	{
327	if (!cmd_pid)
328	return;
329
330	const char *pty = name;
331
332	if (!strncmp (pty, "/dev/", 5))
333	pty += 5;
334
335	#ifdef HAVE_STRUCT_UTMP
336	struct utmp tmput, ut = &this->ut;
337	fill_utmp (ut, false, cmd_pid, pty, 0, 0);
338	#endif
339
340	#ifdef HAVE_STRUCT_UTMPX
341	struct utmpx tmputx, utx = &this->utx;
342	fill_utmpx (utx, false, cmd_pid, pty, 0, 0);
343	#endif
344
345	/*
346	* Write ending wtmp entry
347	*/
348	#ifdef WTMP_SUPPORT
349	#ifdef LOG_ONLY_ON_LOGIN
350	if (login_shell)
351	#endif
352	{
353	# ifdef HAVE_STRUCT_UTMP
354	# ifdef HAVE_UPDWTMP
355	updwtmp (WTMP_FILE, ut);
356	# else
357	update_wtmp (WTMP_FILE, ut);
358	# endif
359	# endif
360	# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
361	updwtmpx (WTMPX_FILE, utx);
362	# endif
363	}
364	#endif
365
366	/*
367	* Write utmp entry
368	*/
369	#ifdef HAVE_STRUCT_UTMP
370	# ifdef HAVE_UTMP_PID
371	setutent ();
372	tmput = getutid (ut);
373	if (tmput && tmput->ut_pid == cmd_pid)
374	pututline (ut);
375	endutent ();
376	# else
377	write_bsd_utmp (utmp_pos, ut);
378	# endif
379	#endif
380
381	#ifdef HAVE_STRUCT_UTMPX
382	setutxent ();
383	tmputx = getutxid (utx);
384	if (tmputx && tmputx->ut_pid == cmd_pid)
385	{
386	// posix says that ut_user is not meaningful for DEAD_PROCESS
387	// records, but solaris utmp_update helper requires that the ut_user
388	// field of a DEAD_PROCESS entry matches the one of an existing
389	// USER_PROCESS entry for the same line, if any
390	strncpy (utx->ut_user, tmputx->ut_user, sizeof (utx->ut_user));
391	pututxline (utx);
392	}
393	endutxent ();
394	#endif
395
396	cmd_pid = 0;
397	}
398
399	#else
400	void
401	ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
402	{
403	}
404	#endif
405