libptytty/src/logging.C

/*----------------------------------------------------------------------*
 * 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"

#include <sys/types.h>

#if UTMP_SUPPORT

#ifdef HAVE_UTMPX_H
# include <utmpx.h>
#endif
#ifdef HAVE_UTMP_H
# include <utmp.h>
#endif
#ifdef HAVE_LASTLOG_H
# include <lastlog.h>
#endif

#if !defined(UTMP_FILE)
# if defined(_PATH_UTMP)
#  define UTMP_FILE _PATH_UTMP
# elif defined(PT_UTMP_FILE)
#  define UTMP_FILE PT_UTMP_FILE
# endif
#endif
#if !defined(WTMP_FILE)
# if defined(_PATH_WTMP)
#  define WTMP_FILE _PATH_WTMP
# elif defined(PT_WTMP_FILE)
#  define WTMP_FILE PT_WTMP_FILE
# endif
#endif
#if !defined(WTMPX_FILE)
# if defined(_PATH_WTMPX)
#  define WTMPX_FILE _PATH_WTMPX
# elif defined(PT_WTMPX_FILE)
#  define WTMPX_FILE PT_WTMPX_FILE
# endif
#endif
#if !defined(LASTLOG_FILE)
# if defined(_PATH_LASTLOG)
#  define LASTLOG_FILE _PATH_LASTLOG
# elif defined(PT_LASTLOG_FILE)
#  define LASTLOG_FILE PT_LASTLOG_FILE
# endif
#endif
#if !defined(LASTLOGX_FILE)
# if defined(_PATH_LASTLOGX)
#  define LASTLOGX_FILE _PATH_LASTLOGX
# elif defined(PT_LASTLOGX_FILE)
#  define LASTLOGX_FILE PT_LASTLOGX_FILE
# endif
#endif

#include <pwd.h>

#include <stdio.h>
#include <string.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)
    {
      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;
# 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
  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) (getuid () * 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;

  // 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, user, sizeof (utx->ut_user));

  if (login)
    {
# 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)
{
  if (!name || !*name)
    return;

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

  log_session (true, hostname);
}

void
ptytty_unix::log_session (bool login, const char *hostname)
{
  struct passwd *pwent = getpwuid (getuid ());
  const char *user = (pwent && pwent->pw_name) ? pwent->pw_name : "?";

  const char *pty = name;

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

#ifdef HAVE_STRUCT_UTMP
  struct utmp *tmput;
  struct utmp ut;
  fill_utmp (&ut, login, cmd_pid, pty, user, hostname);
#endif

#ifdef HAVE_STRUCT_UTMPX
  struct utmpx *tmputx;
  struct utmpx utx;
  fill_utmpx (&utx, login, cmd_pid, pty, user, hostname);
#endif

#ifdef HAVE_STRUCT_UTMP
# ifdef HAVE_UTMP_PID
  setutent ();
  if (login || ((tmput = getutid (&ut)) && tmput->ut_pid == cmd_pid))
    pututline (&ut);
  endutent ();
# else
  write_bsd_utmp (utmp_pos, &ut);
# endif
#endif

#ifdef HAVE_STRUCT_UTMPX
  setutxent ();
  if (login || ((tmputx = getutxid (&utx)) && tmputx->ut_pid == cmd_pid))
    pututxline (&utx);
  endutxent ();
#endif

#ifdef WTMP_SUPPORT
  if (login_shell)
    {
# 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
  if (login_shell)
    if (login)
      {
        if (pwent)
          update_lastlog (pty, hostname);
        else
          PTYTTY_WARN ("no entry in password file, not updating lastlog.\n");
      }
#endif
}

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

  log_session (false, 0);

  cmd_pid = 0;
}

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

Revision:	1.69
Committed:	Fri Oct 31 07:55:37 2014 UTC (11 years, 10 months ago) by sf-exg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rxvt-unicode-rel-9_26, rxvt-unicode-rel-9_25, rxvt-unicode-rel-9_22, rxvt-unicode-rel-9_21, rel-1_8, rel-1_7
Changes since 1.68:	+2 -1 lines
Log Message:	Fix compilation on fbsd/obsd.
#	Content
1	/----------------------------------------------------------------------
2	* File: logging.C
3	----------------------------------------------------------------------
4	*
5	* All portions of code are copyright by their respective author/s.
6	* Copyright (c) 1992 John Bovey <jdb@ukc.ac.uk>
7	* - original version
8	* Copyright (c) 1993 lipka
9	* Copyright (c) 1993 Brian Stempien <stempien@cs.wmich.edu>
10	* Copyright (c) 1995 Raul Garcia Garcia <rgg@tid.es>
11	* Copyright (c) 1995 Piet W. Plomp <piet@idefix.icce.rug.nl>
12	* Copyright (c) 1997 Raul Garcia Garcia <rgg@tid.es>
13	* Copyright (c) 1998-2001 Geoff Wing <gcw@pobox.com>
14	* - extensive modifications
15	* Copyright (c) 1999 D J Hawkey Jr <hawkeyd@visi.com>
16	* - lastlog support
17	* Copyright (c) 2004-2006 Marc Lehmann <schmorp@schmorp.de>
18	* Copyright (c) 2006 Emanuele Giaquinta <e.giaquinta@glauco.it>
19	*
20	* This program is free software; you can redistribute it and/or modify
21	* it under the terms of the GNU General Public License as published by
22	* the Free Software Foundation; either version 2 of the License, or
23	* (at your option) any later version.
24	*
25	* This program is distributed in the hope that it will be useful,
26	* but WITHOUT ANY WARRANTY; without even the implied warranty of
27	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
28	* GNU General Public License for more details.
29	*
30	* You should have received a copy of the GNU General Public License
31	* along with this program; if not, write to the Free Software
32	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
33	----------------------------------------------------------------------/
34
35	#include "config.h"
36
37	#include "ptytty.h"
38
39	#include <sys/types.h>
40
41	#if UTMP_SUPPORT
42
43	#ifdef HAVE_UTMPX_H
44	# include <utmpx.h>
45	#endif
46	#ifdef HAVE_UTMP_H
47	# include <utmp.h>
48	#endif
49	#ifdef HAVE_LASTLOG_H
50	# include <lastlog.h>
51	#endif
52
53	#if !defined(UTMP_FILE)
54	# if defined(_PATH_UTMP)
55	# define UTMP_FILE _PATH_UTMP
56	# elif defined(PT_UTMP_FILE)
57	# define UTMP_FILE PT_UTMP_FILE
58	# endif
59	#endif
60	#if !defined(WTMP_FILE)
61	# if defined(_PATH_WTMP)
62	# define WTMP_FILE _PATH_WTMP
63	# elif defined(PT_WTMP_FILE)
64	# define WTMP_FILE PT_WTMP_FILE
65	# endif
66	#endif
67	#if !defined(WTMPX_FILE)
68	# if defined(_PATH_WTMPX)
69	# define WTMPX_FILE _PATH_WTMPX
70	# elif defined(PT_WTMPX_FILE)
71	# define WTMPX_FILE PT_WTMPX_FILE
72	# endif
73	#endif
74	#if !defined(LASTLOG_FILE)
75	# if defined(_PATH_LASTLOG)
76	# define LASTLOG_FILE _PATH_LASTLOG
77	# elif defined(PT_LASTLOG_FILE)
78	# define LASTLOG_FILE PT_LASTLOG_FILE
79	# endif
80	#endif
81	#if !defined(LASTLOGX_FILE)
82	# if defined(_PATH_LASTLOGX)
83	# define LASTLOGX_FILE _PATH_LASTLOGX
84	# elif defined(PT_LASTLOGX_FILE)
85	# define LASTLOGX_FILE PT_LASTLOGX_FILE
86	# endif
87	#endif
88
89	#include <pwd.h>
90
91	#include <stdio.h>
92	#include <string.h>
93
94	#include <sys/stat.h>
95	#include <fcntl.h>
96	#include <unistd.h>
97	#include <time.h>
98	#include <errno.h>
99
100	/*
101	* BSD style utmp entry
102	* ut_line, ut_name, ut_host, ut_time
103	* SYSV style utmp (and utmpx) entry
104	* ut_user, ut_id, ut_line, ut_pid, ut_type, ut_exit, ut_time
105	*/
106
107	/* ------------------------------------------------------------------------- */
108	/*
109	* Write a BSD style utmp entry
110	*/
111	#if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID)
112	static void
113	write_bsd_utmp (int utmp_pos, struct utmp *ut)
114	{
115	int fd;
116
117	if (utmp_pos <= 0 \|\| (fd = open (UTMP_FILE, O_WRONLY)) == -1)
118	return;
119
120	if (lseek (fd, (off_t) (utmp_pos * sizeof (struct utmp)), SEEK_SET) != -1)
121	write (fd, ut, sizeof (struct utmp));
122	close (fd);
123	}
124	#endif
125
126	/* ------------------------------------------------------------------------- */
127	/*
128	* Update a BSD style wtmp entry
129	*/
130	#if defined(WTMP_SUPPORT) && !defined(HAVE_UPDWTMP) && defined(HAVE_STRUCT_UTMP)
131	static void
132	update_wtmp (const char fname, const struct utmp ut)
133	{
134	int fd, gotlock, retry;
135	struct flock lck; /* fcntl locking scheme */
136	struct stat sbuf;
137
138	if ((fd = open (fname, O_WRONLY \| O_APPEND, 0)) < 0)
139	return;
140
141	lck.l_whence = SEEK_END; /* start lock at current eof */
142	lck.l_len = 0; /* end at ``largest possible eof'' */
143	lck.l_start = 0;
144	lck.l_type = F_WRLCK; /* we want a write lock */
145
146	/* attempt lock with F_SETLK; F_SETLKW would cause a deadlock! */
147	for (retry = 10, gotlock = 0; retry--;)
148	if (fcntl (fd, F_SETLK, &lck) != -1)
149	{
150	gotlock = 1;
151	break;
152	}
153	else if (errno != EAGAIN && errno != EACCES)
154	break;
155
156	if (gotlock)
157	{
158	if (fstat (fd, &sbuf) == 0)
159	if (write (fd, ut, sizeof (struct utmp)) != sizeof (struct utmp))
160	ftruncate (fd, sbuf.st_size); /* remove bad writes */
161
162	lck.l_type = F_UNLCK; /* unlocking the file */
163	fcntl (fd, F_SETLK, &lck);
164	}
165
166	close (fd);
167	}
168	#endif
169
170	/* ------------------------------------------------------------------------- */
171	#ifdef LASTLOG_SUPPORT
172	static void
173	update_lastlog (const char pty, const char host)
174	{
175	# if defined(HAVE_STRUCT_LASTLOGX) && defined(HAVE_UPDLASTLOGX)
176	struct lastlogx llx;
177	# endif
178	# ifdef HAVE_STRUCT_LASTLOG
179	int fd;
180	struct lastlog ll;
181	# endif
182
183	# if defined(HAVE_STRUCT_LASTLOGX) && defined(HAVE_UPDLASTLOGX)
184	memset (&llx, 0, sizeof (llx));
185	llx.ll_tv.tv_sec = time (NULL);
186	llx.ll_tv.tv_usec = 0;
187	strncpy (llx.ll_line, pty, sizeof (llx.ll_line));
188	strncpy (llx.ll_host, host, sizeof (llx.ll_host));
189	updlastlogx (LASTLOGX_FILE, getuid (), &llx);
190	# endif
191
192	# ifdef HAVE_STRUCT_LASTLOG
193	memset (&ll, 0, sizeof (ll));
194	ll.ll_time = time (NULL);
195	strncpy (ll.ll_line, pty, sizeof (ll.ll_line));
196	strncpy (ll.ll_host, host, sizeof (ll.ll_host));
197	if ((fd = open (LASTLOG_FILE, O_RDWR)) != -1)
198	{
199	if (lseek (fd, (off_t) (getuid () * sizeof (ll)),
200	SEEK_SET) != -1)
201	write (fd, &ll, sizeof (ll));
202	close (fd);
203	}
204	# endif /* HAVE_STRUCT_LASTLOG */
205	}
206	#endif /* LASTLOG_SUPPORT */
207
208	#if defined(HAVE_UTMP_PID) \|\| defined(HAVE_STRUCT_UTMPX)
209	static void
210	fill_id (char id, const char line, size_t id_size)
211	{
212	size_t len = strlen (line);
213
214	if (len > id_size)
215	line += len - id_size;
216	strncpy (id, line, id_size);
217	}
218	#endif
219
220	#ifdef HAVE_STRUCT_UTMP
221	static void
222	fill_utmp (struct utmp ut, bool login, int pid, const char line, const char user, const char host)
223	{
224	memset (ut, 0, sizeof (struct utmp));
225
226	strncpy (ut->ut_line, line, sizeof (ut->ut_line));
227	# ifdef HAVE_UTMP_PID
228	fill_id (ut->ut_id, line, sizeof (ut->ut_id));
229	ut->ut_pid = pid;
230	ut->ut_type = login ? USER_PROCESS : DEAD_PROCESS;
231	# endif
232	ut->ut_time = time (NULL);
233
234	if (login)
235	{
236	# ifdef HAVE_UTMP_PID
237	strncpy (ut->ut_user, user, sizeof (ut->ut_user));
238	# else
239	strncpy (ut->ut_name, user, sizeof (ut->ut_name));
240	# endif
241	# ifdef HAVE_UTMP_HOST
242	strncpy (ut->ut_host, host, sizeof (ut->ut_host));
243	# endif
244	}
245	}
246	#endif
247
248	#ifdef HAVE_STRUCT_UTMPX
249	static void
250	fill_utmpx (struct utmpx utx, bool login, int pid, const char line, const char user, const char host)
251	{
252	memset (utx, 0, sizeof (struct utmpx));
253
254	// posix says that ut_line is not meaningful for DEAD_PROCESS
255	// records, but most implementations of last use ut_line to
256	// associate records in wtmp file
257	strncpy (utx->ut_line, line, sizeof (utx->ut_line));
258	fill_id (utx->ut_id, line, sizeof (utx->ut_id));
259	utx->ut_pid = pid;
260	utx->ut_type = login ? USER_PROCESS : DEAD_PROCESS;
261	utx->ut_tv.tv_sec = time (NULL);
262	utx->ut_tv.tv_usec = 0;
263
264	// posix says that ut_user is not meaningful for DEAD_PROCESS
265	// records, but solaris utmp_update helper requires that the ut_user
266	// field of a DEAD_PROCESS entry matches the one of an existing
267	// USER_PROCESS entry for the same line, if any
268	strncpy (utx->ut_user, user, sizeof (utx->ut_user));
269
270	if (login)
271	{
272	# ifdef HAVE_UTMPX_HOST
273	strncpy (utx->ut_host, host, sizeof (utx->ut_host));
274	# endif
275	}
276	}
277	#endif
278
279	/* ------------------------------------------------------------------------- */
280
281	/*
282	* make and write utmp and wtmp entries
283	*/
284	void
285	ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
286	{
287	if (!name \|\| !*name)
288	return;
289
290	this->cmd_pid = cmd_pid;
291	this->login_shell = login_shell;
292
293	log_session (true, hostname);
294	}
295
296	void
297	ptytty_unix::log_session (bool login, const char *hostname)
298	{
299	struct passwd *pwent = getpwuid (getuid ());
300	const char *user = (pwent && pwent->pw_name) ? pwent->pw_name : "?";
301
302	const char *pty = name;
303
304	if (!strncmp (pty, "/dev/", 5))
305	pty += 5; /* skip /dev/ prefix */
306
307	#ifdef HAVE_STRUCT_UTMP
308	struct utmp *tmput;
309	struct utmp ut;
310	fill_utmp (&ut, login, cmd_pid, pty, user, hostname);
311	#endif
312
313	#ifdef HAVE_STRUCT_UTMPX
314	struct utmpx *tmputx;
315	struct utmpx utx;
316	fill_utmpx (&utx, login, cmd_pid, pty, user, hostname);
317	#endif
318
319	#ifdef HAVE_STRUCT_UTMP
320	# ifdef HAVE_UTMP_PID
321	setutent ();
322	if (login \|\| ((tmput = getutid (&ut)) && tmput->ut_pid == cmd_pid))
323	pututline (&ut);
324	endutent ();
325	# else
326	write_bsd_utmp (utmp_pos, &ut);
327	# endif
328	#endif
329
330	#ifdef HAVE_STRUCT_UTMPX
331	setutxent ();
332	if (login \|\| ((tmputx = getutxid (&utx)) && tmputx->ut_pid == cmd_pid))
333	pututxline (&utx);
334	endutxent ();
335	#endif
336
337	#ifdef WTMP_SUPPORT
338	if (login_shell)
339	{
340	# ifdef HAVE_STRUCT_UTMP
341	# ifdef HAVE_UPDWTMP
342	updwtmp (WTMP_FILE, &ut);
343	# else
344	update_wtmp (WTMP_FILE, &ut);
345	# endif
346	# endif
347	# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
348	updwtmpx (WTMPX_FILE, &utx);
349	# endif
350	}
351	#endif
352
353	#ifdef LASTLOG_SUPPORT
354	if (login_shell)
355	if (login)
356	{
357	if (pwent)
358	update_lastlog (pty, hostname);
359	else
360	PTYTTY_WARN ("no entry in password file, not updating lastlog.\n");
361	}
362	#endif
363	}
364
365	/* ------------------------------------------------------------------------- */
366	/*
367	* remove utmp and wtmp entries
368	*/
369	void
370	ptytty_unix::logout ()
371	{
372	if (!cmd_pid)
373	return;
374
375	log_session (false, 0);
376
377	cmd_pid = 0;
378	}
379
380	#else
381	void
382	ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
383	{
384	}
385	#endif
386