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 3 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

#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/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)
    {
      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:	1.67
Committed:	Thu May 22 18:54:32 2014 UTC (12 years, 3 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.66:	+1 -1 lines
Log Message:	GPLv3
#	User	Rev	Content
1	root	1.6	/----------------------------------------------------------------------
2	root	1.1	* 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	sf-exg	1.30	* Copyright (c) 2004-2006 Marc Lehmann <schmorp@schmorp.de>
18	root	1.9	* Copyright (c) 2006 Emanuele Giaquinta <e.giaquinta@glauco.it>
19	root	1.1	*
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	root	1.67	* the Free Software Foundation; either version 3 of the License, or
23	root	1.1	* (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	sf-exg	1.26	#include "config.h"
36	root	1.4
37	root	1.10	#include "ptytty.h"
38
39			#if UTMP_SUPPORT
40
41	sf-exg	1.56	#ifdef HAVE_UTMPX_H
42			# include <utmpx.h>
43			#endif
44			#ifdef HAVE_UTMP_H
45			# include <utmp.h>
46			#endif
47			#ifdef HAVE_LASTLOG_H
48			# include <lastlog.h>
49			#endif
50
51	sf-exg	1.58	#if !defined(UTMP_FILE)
52			# if defined(_PATH_UTMP)
53			# define UTMP_FILE _PATH_UTMP
54			# elif defined(PT_UTMP_FILE)
55			# define UTMP_FILE PT_UTMP_FILE
56			# endif
57			#endif
58			#if !defined(WTMP_FILE)
59			# if defined(_PATH_WTMP)
60			# define WTMP_FILE _PATH_WTMP
61			# elif defined(PT_WTMP_FILE)
62			# define WTMP_FILE PT_WTMP_FILE
63			# endif
64			#endif
65			#if !defined(WTMPX_FILE)
66			# if defined(_PATH_WTMPX)
67			# define WTMPX_FILE _PATH_WTMPX
68			# elif defined(PT_WTMPX_FILE)
69			# define WTMPX_FILE PT_WTMPX_FILE
70			# endif
71			#endif
72			#if !defined(LASTLOG_FILE)
73			# if defined(_PATH_LASTLOG)
74			# define LASTLOG_FILE _PATH_LASTLOG
75			# elif defined(PT_LASTLOG_FILE)
76			# define LASTLOG_FILE PT_LASTLOG_FILE
77			# endif
78			#endif
79			#if !defined(LASTLOGX_FILE)
80			# if defined(_PATH_LASTLOGX)
81			# define LASTLOGX_FILE _PATH_LASTLOGX
82			# elif defined(PT_LASTLOGX_FILE)
83			# define LASTLOGX_FILE PT_LASTLOGX_FILE
84			# endif
85			#endif
86
87	sf-exg	1.56	#include <pwd.h>
88
89	sf-exg	1.65	#include <stdio.h>
90	sf-exg	1.64	#include <string.h>
91	root	1.7
92			#include <sys/types.h>
93			#include <sys/stat.h>
94	ayin	1.23	#include <fcntl.h>
95	root	1.7	#include <unistd.h>
96			#include <time.h>
97	ayin	1.24	#include <errno.h>
98	root	1.7
99	root	1.1	/*
100			* BSD style utmp entry
101			* ut_line, ut_name, ut_host, ut_time
102			* SYSV style utmp (and utmpx) entry
103			* ut_user, ut_id, ut_line, ut_pid, ut_type, ut_exit, ut_time
104			*/
105
106			/* ------------------------------------------------------------------------- */
107	ayin	1.12	/*
108			* Write a BSD style utmp entry
109			*/
110			#if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID)
111	sf-exg	1.53	static void
112	sf-exg	1.43	write_bsd_utmp (int utmp_pos, struct utmp *ut)
113	ayin	1.12	{
114			int fd;
115
116			if (utmp_pos <= 0 \|\| (fd = open (UTMP_FILE, O_WRONLY)) == -1)
117	sf-exg	1.53	return;
118	ayin	1.12
119			if (lseek (fd, (off_t) (utmp_pos * sizeof (struct utmp)), SEEK_SET) != -1)
120	sf-exg	1.43	write (fd, ut, sizeof (struct utmp));
121	ayin	1.12	close (fd);
122			}
123			#endif
124
125			/* ------------------------------------------------------------------------- */
126			/*
127			* Update a BSD style wtmp entry
128			*/
129			#if defined(WTMP_SUPPORT) && !defined(HAVE_UPDWTMP) && defined(HAVE_STRUCT_UTMP)
130			static void
131	sf-exg	1.43	update_wtmp (const char fname, const struct utmp ut)
132	ayin	1.12	{
133	sf-exg	1.29	int fd, gotlock, retry;
134	ayin	1.12	struct flock lck; /* fcntl locking scheme */
135			struct stat sbuf;
136
137			if ((fd = open (fname, O_WRONLY \| O_APPEND, 0)) < 0)
138			return;
139
140			lck.l_whence = SEEK_END; /* start lock at current eof */
141			lck.l_len = 0; /* end at ``largest possible eof'' */
142			lck.l_start = 0;
143			lck.l_type = F_WRLCK; /* we want a write lock */
144
145			/* attempt lock with F_SETLK; F_SETLKW would cause a deadlock! */
146	sf-exg	1.29	for (retry = 10, gotlock = 0; retry--;)
147	ayin	1.12	if (fcntl (fd, F_SETLK, &lck) != -1)
148			{
149	sf-exg	1.29	gotlock = 1;
150	ayin	1.12	break;
151			}
152			else if (errno != EAGAIN && errno != EACCES)
153	sf-exg	1.29	break;
154	sf-exg	1.57
155			if (gotlock)
156	sf-exg	1.29	{
157	sf-exg	1.57	if (fstat (fd, &sbuf) == 0)
158			if (write (fd, ut, sizeof (struct utmp)) != sizeof (struct utmp))
159			ftruncate (fd, sbuf.st_size); /* remove bad writes */
160
161			lck.l_type = F_UNLCK; /* unlocking the file */
162			fcntl (fd, F_SETLK, &lck);
163	sf-exg	1.29	}
164	ayin	1.12
165			close (fd);
166			}
167			#endif
168
169			/* ------------------------------------------------------------------------- */
170			#ifdef LASTLOG_SUPPORT
171			static void
172	sf-exg	1.31	update_lastlog (const char pty, const char host)
173	ayin	1.12	{
174			# if defined(HAVE_STRUCT_LASTLOGX) && defined(HAVE_UPDLASTLOGX)
175			struct lastlogx llx;
176			# endif
177			# ifdef HAVE_STRUCT_LASTLOG
178			int fd;
179			struct lastlog ll;
180			# endif
181
182			# if defined(HAVE_STRUCT_LASTLOGX) && defined(HAVE_UPDLASTLOGX)
183			memset (&llx, 0, sizeof (llx));
184			llx.ll_tv.tv_sec = time (NULL);
185			llx.ll_tv.tv_usec = 0;
186			strncpy (llx.ll_line, pty, sizeof (llx.ll_line));
187			strncpy (llx.ll_host, host, sizeof (llx.ll_host));
188			updlastlogx (LASTLOGX_FILE, getuid (), &llx);
189			# endif
190
191			# ifdef HAVE_STRUCT_LASTLOG
192			memset (&ll, 0, sizeof (ll));
193			ll.ll_time = time (NULL);
194			strncpy (ll.ll_line, pty, sizeof (ll.ll_line));
195			strncpy (ll.ll_host, host, sizeof (ll.ll_host));
196	sf-exg	1.48	if ((fd = open (LASTLOG_FILE, O_RDWR)) != -1)
197	ayin	1.13	{
198	sf-exg	1.60	if (lseek (fd, (off_t) (getuid () * sizeof (ll)),
199	sf-exg	1.48	SEEK_SET) != -1)
200			write (fd, &ll, sizeof (ll));
201			close (fd);
202	ayin	1.13	}
203	ayin	1.17	# endif /* HAVE_STRUCT_LASTLOG */
204	ayin	1.12	}
205	ayin	1.17	#endif /* LASTLOG_SUPPORT */
206	ayin	1.12
207	sf-exg	1.45	#if defined(HAVE_UTMP_PID) \|\| defined(HAVE_STRUCT_UTMPX)
208			static void
209			fill_id (char id, const char line, size_t id_size)
210			{
211			size_t len = strlen (line);
212
213			if (len > id_size)
214			line += len - id_size;
215			strncpy (id, line, id_size);
216			}
217			#endif
218
219	sf-exg	1.32	#ifdef HAVE_STRUCT_UTMP
220			static void
221	sf-exg	1.45	fill_utmp (struct utmp ut, bool login, int pid, const char line, const char user, const char host)
222	sf-exg	1.32	{
223			memset (ut, 0, sizeof (struct utmp));
224
225	sf-exg	1.40	strncpy (ut->ut_line, line, sizeof (ut->ut_line));
226	sf-exg	1.32	# ifdef HAVE_UTMP_PID
227	sf-exg	1.45	fill_id (ut->ut_id, line, sizeof (ut->ut_id));
228	sf-exg	1.32	ut->ut_pid = pid;
229	sf-exg	1.35	ut->ut_type = login ? USER_PROCESS : DEAD_PROCESS;
230	sf-exg	1.32	# endif
231			ut->ut_time = time (NULL);
232
233			if (login)
234			{
235			# ifdef HAVE_UTMP_PID
236			strncpy (ut->ut_user, user, sizeof (ut->ut_user));
237			# else
238			strncpy (ut->ut_name, user, sizeof (ut->ut_name));
239			# endif
240			# ifdef HAVE_UTMP_HOST
241			strncpy (ut->ut_host, host, sizeof (ut->ut_host));
242			# endif
243			}
244			}
245			#endif
246
247			#ifdef HAVE_STRUCT_UTMPX
248			static void
249	sf-exg	1.45	fill_utmpx (struct utmpx utx, bool login, int pid, const char line, const char user, const char host)
250	sf-exg	1.32	{
251			memset (utx, 0, sizeof (struct utmpx));
252
253	sf-exg	1.40	// posix says that ut_line is not meaningful for DEAD_PROCESS
254	sf-exg	1.41	// records, but most implementations of last use ut_line to
255	sf-exg	1.40	// associate records in wtmp file
256			strncpy (utx->ut_line, line, sizeof (utx->ut_line));
257	sf-exg	1.45	fill_id (utx->ut_id, line, sizeof (utx->ut_id));
258	sf-exg	1.32	utx->ut_pid = pid;
259	sf-exg	1.35	utx->ut_type = login ? USER_PROCESS : DEAD_PROCESS;
260	sf-exg	1.32	utx->ut_tv.tv_sec = time (NULL);
261			utx->ut_tv.tv_usec = 0;
262
263	sf-exg	1.54	// posix says that ut_user is not meaningful for DEAD_PROCESS
264			// records, but solaris utmp_update helper requires that the ut_user
265			// field of a DEAD_PROCESS entry matches the one of an existing
266			// USER_PROCESS entry for the same line, if any
267			strncpy (utx->ut_user, user, sizeof (utx->ut_user));
268
269	sf-exg	1.32	if (login)
270			{
271			# ifdef HAVE_UTMPX_HOST
272			strncpy (utx->ut_host, host, sizeof (utx->ut_host));
273			# endif
274			}
275			}
276			#endif
277
278	ayin	1.12	/* ------------------------------------------------------------------------- */
279	root	1.1
280			/*
281			* make and write utmp and wtmp entries
282			*/
283			void
284	root	1.3	ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
285	root	1.1	{
286	sf-exg	1.54	if (!name \|\| !*name)
287	root	1.2	return;
288
289			this->cmd_pid = cmd_pid;
290			this->login_shell = login_shell;
291
292	sf-exg	1.54	log_session (true, hostname);
293			}
294
295			void
296			ptytty_unix::log_session (bool login, const char *hostname)
297			{
298	root	1.1	struct passwd *pwent = getpwuid (getuid ());
299	sf-exg	1.39	const char *user = (pwent && pwent->pw_name) ? pwent->pw_name : "?";
300	root	1.1
301	sf-exg	1.54	const char *pty = name;
302
303	root	1.1	if (!strncmp (pty, "/dev/", 5))
304			pty += 5; /* skip /dev/ prefix */
305
306			#ifdef HAVE_STRUCT_UTMP
307	sf-exg	1.54	struct utmp *tmput;
308	sf-exg	1.55	struct utmp ut;
309			fill_utmp (&ut, login, cmd_pid, pty, user, hostname);
310	root	1.1	#endif
311
312			#ifdef HAVE_STRUCT_UTMPX
313	sf-exg	1.54	struct utmpx *tmputx;
314	sf-exg	1.55	struct utmpx utx;
315			fill_utmpx (&utx, login, cmd_pid, pty, user, hostname);
316	root	1.1	#endif
317
318			#ifdef HAVE_STRUCT_UTMP
319			# ifdef HAVE_UTMP_PID
320	sf-exg	1.37	setutent ();
321	sf-exg	1.55	if (login \|\| ((tmput = getutid (&ut)) && tmput->ut_pid == cmd_pid))
322			pututline (&ut);
323	sf-exg	1.42	endutent ();
324	sf-exg	1.38	# else
325	sf-exg	1.55	write_bsd_utmp (utmp_pos, &ut);
326	root	1.1	# endif
327			#endif
328
329			#ifdef HAVE_STRUCT_UTMPX
330	sf-exg	1.37	setutxent ();
331	sf-exg	1.55	if (login \|\| ((tmputx = getutxid (&utx)) && tmputx->ut_pid == cmd_pid))
332			pututxline (&utx);
333	sf-exg	1.42	endutxent ();
334	root	1.1	#endif
335
336			#ifdef WTMP_SUPPORT
337	root	1.2	if (login_shell)
338	root	1.1	{
339			# ifdef HAVE_STRUCT_UTMP
340			# ifdef HAVE_UPDWTMP
341	sf-exg	1.55	updwtmp (WTMP_FILE, &ut);
342	root	1.1	# else
343	sf-exg	1.55	update_wtmp (WTMP_FILE, &ut);
344	root	1.1	# endif
345			# endif
346	root	1.2	# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
347	sf-exg	1.55	updwtmpx (WTMPX_FILE, &utx);
348	root	1.1	# endif
349			}
350			#endif
351	sf-exg	1.54
352	sf-exg	1.31	#ifdef LASTLOG_SUPPORT
353	root	1.2	if (login_shell)
354	sf-exg	1.54	if (login)
355	sf-exg	1.60	{
356			if (pwent)
357			update_lastlog (pty, hostname);
358			else
359	sf-exg	1.66	PTYTTY_WARN ("no entry in password file, not updating lastlog.\n");
360	sf-exg	1.60	}
361	root	1.1	#endif
362			}
363
364			/* ------------------------------------------------------------------------- */
365			/*
366			* remove utmp and wtmp entries
367			*/
368			void
369	root	1.3	ptytty_unix::logout ()
370	root	1.1	{
371	root	1.2	if (!cmd_pid)
372			return;
373
374	sf-exg	1.54	log_session (false, 0);
375	root	1.2
376			cmd_pid = 0;
377	root	1.1	}
378
379	root	1.5	#else
380			void
381			ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
382			{
383			}
384			#endif
385