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.
#	User	Rev	Content
1	root	1.6	// This file is part of libptytty. Do not make local modifications.
2			// http://software.schmorp.de/pkg/libptytty
3
4			/----------------------------------------------------------------------
5	root	1.1	* 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	sf-exg	1.30	* Copyright (c) 2004-2006 Marc Lehmann <schmorp@schmorp.de>
21	root	1.9	* Copyright (c) 2006 Emanuele Giaquinta <e.giaquinta@glauco.it>
22	root	1.1	*
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	sf-exg	1.26	#include "config.h"
39	root	1.4
40	root	1.10	#include "ptytty.h"
41
42			#if UTMP_SUPPORT
43
44	root	1.7	#include <cstdio>
45	root	1.25	#include <cstring>
46	root	1.7
47			#include <sys/types.h>
48			#include <sys/stat.h>
49	ayin	1.23	#include <fcntl.h>
50	root	1.7	#include <unistd.h>
51			#include <time.h>
52	ayin	1.24	#include <errno.h>
53	root	1.7
54	root	1.1	/*
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	ayin	1.12	/*
63			* Write a BSD style utmp entry
64			*/
65			#if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID)
66	sf-exg	1.53	static void
67	sf-exg	1.43	write_bsd_utmp (int utmp_pos, struct utmp *ut)
68	ayin	1.12	{
69			int fd;
70
71			if (utmp_pos <= 0 \|\| (fd = open (UTMP_FILE, O_WRONLY)) == -1)
72	sf-exg	1.53	return;
73	ayin	1.12
74			if (lseek (fd, (off_t) (utmp_pos * sizeof (struct utmp)), SEEK_SET) != -1)
75	sf-exg	1.43	write (fd, ut, sizeof (struct utmp));
76	ayin	1.12	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	sf-exg	1.43	update_wtmp (const char fname, const struct utmp ut)
87	ayin	1.12	{
88	sf-exg	1.29	int fd, gotlock, retry;
89	ayin	1.12	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	sf-exg	1.29	for (retry = 10, gotlock = 0; retry--;)
102	ayin	1.12	if (fcntl (fd, F_SETLK, &lck) != -1)
103			{
104	sf-exg	1.29	gotlock = 1;
105	ayin	1.12	break;
106			}
107			else if (errno != EAGAIN && errno != EACCES)
108	sf-exg	1.29	break;
109			if (!gotlock)
110			{
111			/* give it up */
112			close (fd);
113			return;
114			}
115	ayin	1.12	if (fstat (fd, &sbuf) == 0)
116	sf-exg	1.43	if (write (fd, ut, sizeof (struct utmp)) != sizeof (struct utmp))
117	ayin	1.12	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	sf-exg	1.31	update_lastlog (const char pty, const char host)
129	ayin	1.12	{
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	sf-exg	1.44	PTYTTY_WARN ("no entry in password file, not updating lastlog.\n", 0);
153	ayin	1.12	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	sf-exg	1.48	if ((fd = open (LASTLOG_FILE, O_RDWR)) != -1)
161	ayin	1.13	{
162	sf-exg	1.48	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	ayin	1.13	}
167	ayin	1.17	# endif /* HAVE_STRUCT_LASTLOG */
168	ayin	1.12	}
169	ayin	1.17	#endif /* LASTLOG_SUPPORT */
170	ayin	1.12
171	sf-exg	1.45	#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	sf-exg	1.32	#ifdef HAVE_STRUCT_UTMP
184			static void
185	sf-exg	1.45	fill_utmp (struct utmp ut, bool login, int pid, const char line, const char user, const char host)
186	sf-exg	1.32	{
187			memset (ut, 0, sizeof (struct utmp));
188
189	sf-exg	1.40	strncpy (ut->ut_line, line, sizeof (ut->ut_line));
190	sf-exg	1.32	# ifdef HAVE_UTMP_PID
191	sf-exg	1.45	fill_id (ut->ut_id, line, sizeof (ut->ut_id));
192	sf-exg	1.32	ut->ut_pid = pid;
193	sf-exg	1.35	ut->ut_type = login ? USER_PROCESS : DEAD_PROCESS;
194	sf-exg	1.32	# 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	sf-exg	1.45	fill_utmpx (struct utmpx utx, bool login, int pid, const char line, const char user, const char host)
214	sf-exg	1.32	{
215			memset (utx, 0, sizeof (struct utmpx));
216
217	sf-exg	1.40	// posix says that ut_line is not meaningful for DEAD_PROCESS
218	sf-exg	1.41	// records, but most implementations of last use ut_line to
219	sf-exg	1.40	// associate records in wtmp file
220			strncpy (utx->ut_line, line, sizeof (utx->ut_line));
221	sf-exg	1.45	fill_id (utx->ut_id, line, sizeof (utx->ut_id));
222	sf-exg	1.32	utx->ut_pid = pid;
223	sf-exg	1.35	utx->ut_type = login ? USER_PROCESS : DEAD_PROCESS;
224	sf-exg	1.32	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	sf-exg	1.49	strncpy (utx->ut_user, user, sizeof (utx->ut_user));
233	sf-exg	1.32	# ifdef HAVE_UTMPX_HOST
234			strncpy (utx->ut_host, host, sizeof (utx->ut_host));
235			# endif
236			}
237			}
238			#endif
239
240	ayin	1.12	/* ------------------------------------------------------------------------- */
241	root	1.1
242			/*
243			* make and write utmp and wtmp entries
244			*/
245			void
246	root	1.3	ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
247	root	1.1	{
248	root	1.2	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	root	1.1	struct passwd *pwent = getpwuid (getuid ());
257	sf-exg	1.39	const char *user = (pwent && pwent->pw_name) ? pwent->pw_name : "?";
258	root	1.1
259			if (!strncmp (pty, "/dev/", 5))
260			pty += 5; /* skip /dev/ prefix */
261
262			#ifdef HAVE_STRUCT_UTMP
263	sf-exg	1.46	struct utmp *ut = &this->ut;
264	sf-exg	1.45	fill_utmp (ut, true, cmd_pid, pty, user, hostname);
265	root	1.1	#endif
266
267			#ifdef HAVE_STRUCT_UTMPX
268	sf-exg	1.46	struct utmpx *utx = &this->utx;
269	sf-exg	1.45	fill_utmpx (utx, true, cmd_pid, pty, user, hostname);
270	root	1.1	#endif
271
272			#ifdef HAVE_STRUCT_UTMP
273			# ifdef HAVE_UTMP_PID
274	sf-exg	1.37	setutent ();
275	root	1.1	pututline (ut);
276	sf-exg	1.42	endutent ();
277	sf-exg	1.38	# else
278			int fd_stdin = dup (STDIN_FILENO);
279			dup2 (tty, STDIN_FILENO);
280
281			utmp_pos = ttyslot ();
282	sf-exg	1.53	write_bsd_utmp (utmp_pos, ut);
283	sf-exg	1.38
284			dup2 (fd_stdin, STDIN_FILENO);
285			close (fd_stdin);
286	root	1.1	# endif
287			#endif
288
289			#ifdef HAVE_STRUCT_UTMPX
290	sf-exg	1.37	setutxent ();
291	root	1.1	pututxline (utx);
292	sf-exg	1.42	endutxent ();
293	root	1.1	#endif
294
295			#ifdef WTMP_SUPPORT
296	root	1.2	#ifdef LOG_ONLY_ON_LOGIN
297			if (login_shell)
298			#endif
299	root	1.1	{
300			# ifdef HAVE_STRUCT_UTMP
301			# ifdef HAVE_UPDWTMP
302	root	1.3	updwtmp (WTMP_FILE, ut);
303	root	1.1	# else
304	root	1.3	update_wtmp (WTMP_FILE, ut);
305	root	1.1	# endif
306			# endif
307	root	1.2	# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
308	root	1.3	updwtmpx (WTMPX_FILE, utx);
309	root	1.1	# endif
310			}
311			#endif
312	sf-exg	1.31	#ifdef LASTLOG_SUPPORT
313	root	1.2	#ifdef LOG_ONLY_ON_LOGIN
314			if (login_shell)
315			#endif
316	sf-exg	1.31	update_lastlog (pty, hostname);
317	root	1.1	#endif
318			}
319
320			/* ------------------------------------------------------------------------- */
321			/*
322			* remove utmp and wtmp entries
323			*/
324			void
325	root	1.3	ptytty_unix::logout ()
326	root	1.1	{
327	root	1.2	if (!cmd_pid)
328			return;
329
330	sf-exg	1.40	const char *pty = name;
331
332			if (!strncmp (pty, "/dev/", 5))
333			pty += 5;
334
335	root	1.1	#ifdef HAVE_STRUCT_UTMP
336	root	1.2	struct utmp tmput, ut = &this->ut;
337	sf-exg	1.45	fill_utmp (ut, false, cmd_pid, pty, 0, 0);
338	root	1.1	#endif
339
340			#ifdef HAVE_STRUCT_UTMPX
341	sf-exg	1.46	struct utmpx tmputx, utx = &this->utx;
342	sf-exg	1.45	fill_utmpx (utx, false, cmd_pid, pty, 0, 0);
343	root	1.1	#endif
344
345			/*
346	sf-exg	1.51	* 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	root	1.1	* Write utmp entry
368			*/
369			#ifdef HAVE_STRUCT_UTMP
370			# ifdef HAVE_UTMP_PID
371	sf-exg	1.37	setutent ();
372	sf-exg	1.42	tmput = getutid (ut);
373	sf-exg	1.32	if (tmput && tmput->ut_pid == cmd_pid)
374	root	1.1	pututline (ut);
375			endutent ();
376			# else
377	root	1.3	write_bsd_utmp (utmp_pos, ut);
378	root	1.1	# endif
379			#endif
380	sf-exg	1.50
381	root	1.1	#ifdef HAVE_STRUCT_UTMPX
382	sf-exg	1.37	setutxent ();
383	sf-exg	1.42	tmputx = getutxid (utx);
384	sf-exg	1.32	if (tmputx && tmputx->ut_pid == cmd_pid)
385	sf-exg	1.52	{
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	root	1.1	endutxent ();
394			#endif
395	root	1.2
396			cmd_pid = 0;
397	root	1.1	}
398
399	root	1.5	#else
400			void
401			ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
402			{
403			}
404			#endif
405