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 int
write_bsd_utmp (int utmp_pos, struct utmp *ut)
{
  int             fd;

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

  if (lseek (fd, (off_t) (utmp_pos * sizeof (struct utmp)), SEEK_SET) != -1)
    write (fd, ut, sizeof (struct utmp));
  close (fd);
  return 1;
}
#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;
  char            lastlogfile[256];
  struct passwd  *pwent;
  struct stat     st;
# 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 (stat (LASTLOG_FILE, &st) != 0)
    return;
  if (S_ISDIR (st.st_mode))
    {
      snprintf (lastlogfile, sizeof (lastlogfile), "%s/%s", LASTLOG_FILE,
               (!pwent->pw_name || pwent->pw_name[0] == '\0') ? "unknown"
               : pwent->pw_name);
      if ((fd = open (lastlogfile, O_WRONLY | O_CREAT, 0644)) >= 0)
        {
          write (fd, &ll, sizeof (ll));
          close (fd);
        }
    }
  else if (S_ISREG (st.st_mode))
    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 ();
  if (!write_bsd_utmp (utmp_pos, ut))
    utmp_pos = 0;

  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)
    pututxline (utx);
  endutxent ();
#endif

  cmd_pid = 0;
}

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

Revision:	1.46
Committed:	Sat Jul 9 11:26:22 2011 UTC (15 years, 2 months ago) by sf-exg
Content type:	text/plain
Branch:	MAIN
Changes since 1.45:	+3 -12 lines
Log Message:	Merge ifdef blocks.
#	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			static int
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			return 0;
73
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			return 1;
78			}
79			#endif
80
81			/* ------------------------------------------------------------------------- */
82			/*
83			* Update a BSD style wtmp entry
84			*/
85			#if defined(WTMP_SUPPORT) && !defined(HAVE_UPDWTMP) && defined(HAVE_STRUCT_UTMP)
86			static void
87	sf-exg	1.43	update_wtmp (const char fname, const struct utmp ut)
88	ayin	1.12	{
89	sf-exg	1.29	int fd, gotlock, retry;
90	ayin	1.12	struct flock lck; /* fcntl locking scheme */
91			struct stat sbuf;
92
93			if ((fd = open (fname, O_WRONLY \| O_APPEND, 0)) < 0)
94			return;
95
96			lck.l_whence = SEEK_END; /* start lock at current eof */
97			lck.l_len = 0; /* end at ``largest possible eof'' */
98			lck.l_start = 0;
99			lck.l_type = F_WRLCK; /* we want a write lock */
100
101			/* attempt lock with F_SETLK; F_SETLKW would cause a deadlock! */
102	sf-exg	1.29	for (retry = 10, gotlock = 0; retry--;)
103	ayin	1.12	if (fcntl (fd, F_SETLK, &lck) != -1)
104			{
105	sf-exg	1.29	gotlock = 1;
106	ayin	1.12	break;
107			}
108			else if (errno != EAGAIN && errno != EACCES)
109	sf-exg	1.29	break;
110			if (!gotlock)
111			{
112			/* give it up */
113			close (fd);
114			return;
115			}
116	ayin	1.12	if (fstat (fd, &sbuf) == 0)
117	sf-exg	1.43	if (write (fd, ut, sizeof (struct utmp)) != sizeof (struct utmp))
118	ayin	1.12	ftruncate (fd, sbuf.st_size); /* remove bad writes */
119
120			lck.l_type = F_UNLCK; /* unlocking the file */
121			fcntl (fd, F_SETLK, &lck);
122			close (fd);
123			}
124			#endif
125
126			/* ------------------------------------------------------------------------- */
127			#ifdef LASTLOG_SUPPORT
128			static void
129	sf-exg	1.31	update_lastlog (const char pty, const char host)
130	ayin	1.12	{
131			# if defined(HAVE_STRUCT_LASTLOGX) && defined(HAVE_UPDLASTLOGX)
132			struct lastlogx llx;
133			# endif
134			# ifdef HAVE_STRUCT_LASTLOG
135			int fd;
136			struct lastlog ll;
137			char lastlogfile[256];
138			struct passwd *pwent;
139	ayin	1.13	struct stat st;
140	ayin	1.12	# endif
141
142			# if defined(HAVE_STRUCT_LASTLOGX) && defined(HAVE_UPDLASTLOGX)
143			memset (&llx, 0, sizeof (llx));
144			llx.ll_tv.tv_sec = time (NULL);
145			llx.ll_tv.tv_usec = 0;
146			strncpy (llx.ll_line, pty, sizeof (llx.ll_line));
147			strncpy (llx.ll_host, host, sizeof (llx.ll_host));
148			updlastlogx (LASTLOGX_FILE, getuid (), &llx);
149			# endif
150
151			# ifdef HAVE_STRUCT_LASTLOG
152			pwent = getpwuid (getuid ());
153			if (!pwent)
154			{
155	sf-exg	1.44	PTYTTY_WARN ("no entry in password file, not updating lastlog.\n", 0);
156	ayin	1.12	return;
157			}
158
159			memset (&ll, 0, sizeof (ll));
160			ll.ll_time = time (NULL);
161			strncpy (ll.ll_line, pty, sizeof (ll.ll_line));
162			strncpy (ll.ll_host, host, sizeof (ll.ll_host));
163	sf-exg	1.31	if (stat (LASTLOG_FILE, &st) != 0)
164	ayin	1.13	return;
165			if (S_ISDIR (st.st_mode))
166			{
167	sf-exg	1.31	snprintf (lastlogfile, sizeof (lastlogfile), "%s/%s", LASTLOG_FILE,
168	ayin	1.14	(!pwent->pw_name \|\| pwent->pw_name[0] == '\0') ? "unknown"
169			: pwent->pw_name);
170			if ((fd = open (lastlogfile, O_WRONLY \| O_CREAT, 0644)) >= 0)
171			{
172			write (fd, &ll, sizeof (ll));
173			close (fd);
174			}
175	ayin	1.13	}
176			else if (S_ISREG (st.st_mode))
177	sf-exg	1.31	if ((fd = open (LASTLOG_FILE, O_RDWR)) != -1)
178	ayin	1.14	{
179			if (lseek (fd, (off_t) ((long)pwent->pw_uid * sizeof (ll)),
180			SEEK_SET) != -1)
181			write (fd, &ll, sizeof (ll));
182			close (fd);
183			}
184	ayin	1.17	# endif /* HAVE_STRUCT_LASTLOG */
185	ayin	1.12	}
186	ayin	1.17	#endif /* LASTLOG_SUPPORT */
187	ayin	1.12
188	sf-exg	1.45	#if defined(HAVE_UTMP_PID) \|\| defined(HAVE_STRUCT_UTMPX)
189			static void
190			fill_id (char id, const char line, size_t id_size)
191			{
192			size_t len = strlen (line);
193
194			if (len > id_size)
195			line += len - id_size;
196			strncpy (id, line, id_size);
197			}
198			#endif
199
200	sf-exg	1.32	#ifdef HAVE_STRUCT_UTMP
201			static void
202	sf-exg	1.45	fill_utmp (struct utmp ut, bool login, int pid, const char line, const char user, const char host)
203	sf-exg	1.32	{
204			memset (ut, 0, sizeof (struct utmp));
205
206	sf-exg	1.40	strncpy (ut->ut_line, line, sizeof (ut->ut_line));
207	sf-exg	1.32	# ifdef HAVE_UTMP_PID
208	sf-exg	1.45	fill_id (ut->ut_id, line, sizeof (ut->ut_id));
209	sf-exg	1.32	ut->ut_pid = pid;
210	sf-exg	1.35	ut->ut_type = login ? USER_PROCESS : DEAD_PROCESS;
211	sf-exg	1.32	# endif
212			ut->ut_time = time (NULL);
213
214			if (login)
215			{
216			# ifdef HAVE_UTMP_PID
217			strncpy (ut->ut_user, user, sizeof (ut->ut_user));
218			# else
219			strncpy (ut->ut_name, user, sizeof (ut->ut_name));
220			# endif
221			# ifdef HAVE_UTMP_HOST
222			strncpy (ut->ut_host, host, sizeof (ut->ut_host));
223			# endif
224			}
225			}
226			#endif
227
228			#ifdef HAVE_STRUCT_UTMPX
229			static void
230	sf-exg	1.45	fill_utmpx (struct utmpx utx, bool login, int pid, const char line, const char user, const char host)
231	sf-exg	1.32	{
232			memset (utx, 0, sizeof (struct utmpx));
233
234	sf-exg	1.40	// posix says that ut_line is not meaningful for DEAD_PROCESS
235	sf-exg	1.41	// records, but most implementations of last use ut_line to
236	sf-exg	1.40	// associate records in wtmp file
237			strncpy (utx->ut_line, line, sizeof (utx->ut_line));
238	sf-exg	1.45	fill_id (utx->ut_id, line, sizeof (utx->ut_id));
239	sf-exg	1.32	utx->ut_pid = pid;
240	sf-exg	1.35	utx->ut_type = login ? USER_PROCESS : DEAD_PROCESS;
241	sf-exg	1.32	utx->ut_tv.tv_sec = time (NULL);
242			utx->ut_tv.tv_usec = 0;
243			# if HAVE_UTMPX_SESSION
244			utx->ut_session = getsid (0);
245			# endif
246
247			if (login)
248			{
249			strncpy (utx->ut_user, user, sizeof (utx->ut_user));
250			# ifdef HAVE_UTMPX_HOST
251			strncpy (utx->ut_host, host, sizeof (utx->ut_host));
252			# endif
253			}
254			}
255			#endif
256
257	ayin	1.12	/* ------------------------------------------------------------------------- */
258	root	1.1
259			/*
260			* make and write utmp and wtmp entries
261			*/
262			void
263	root	1.3	ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
264	root	1.1	{
265	root	1.2	const char *pty = name;
266
267			if (!pty \|\| !*pty)
268			return;
269
270			this->cmd_pid = cmd_pid;
271			this->login_shell = login_shell;
272
273	root	1.1	struct passwd *pwent = getpwuid (getuid ());
274	sf-exg	1.39	const char *user = (pwent && pwent->pw_name) ? pwent->pw_name : "?";
275	root	1.1
276			if (!strncmp (pty, "/dev/", 5))
277			pty += 5; /* skip /dev/ prefix */
278
279			#ifdef HAVE_STRUCT_UTMP
280	sf-exg	1.46	struct utmp *ut = &this->ut;
281	sf-exg	1.45	fill_utmp (ut, true, cmd_pid, pty, user, hostname);
282	root	1.1	#endif
283
284			#ifdef HAVE_STRUCT_UTMPX
285	sf-exg	1.46	struct utmpx *utx = &this->utx;
286	sf-exg	1.45	fill_utmpx (utx, true, cmd_pid, pty, user, hostname);
287	root	1.1	#endif
288
289			#ifdef HAVE_STRUCT_UTMP
290			# ifdef HAVE_UTMP_PID
291	sf-exg	1.37	setutent ();
292	root	1.1	pututline (ut);
293	sf-exg	1.42	endutent ();
294	sf-exg	1.38	# else
295			int fd_stdin = dup (STDIN_FILENO);
296			dup2 (tty, STDIN_FILENO);
297
298			utmp_pos = ttyslot ();
299			if (!write_bsd_utmp (utmp_pos, ut))
300			utmp_pos = 0;
301
302			dup2 (fd_stdin, STDIN_FILENO);
303			close (fd_stdin);
304	root	1.1	# endif
305			#endif
306
307			#ifdef HAVE_STRUCT_UTMPX
308	sf-exg	1.37	setutxent ();
309	root	1.1	pututxline (utx);
310	sf-exg	1.42	endutxent ();
311	root	1.1	#endif
312
313			#ifdef WTMP_SUPPORT
314	root	1.2	#ifdef LOG_ONLY_ON_LOGIN
315			if (login_shell)
316			#endif
317	root	1.1	{
318			# ifdef HAVE_STRUCT_UTMP
319			# ifdef HAVE_UPDWTMP
320	root	1.3	updwtmp (WTMP_FILE, ut);
321	root	1.1	# else
322	root	1.3	update_wtmp (WTMP_FILE, ut);
323	root	1.1	# endif
324			# endif
325	root	1.2	# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
326	root	1.3	updwtmpx (WTMPX_FILE, utx);
327	root	1.1	# endif
328			}
329			#endif
330	sf-exg	1.31	#ifdef LASTLOG_SUPPORT
331	root	1.2	#ifdef LOG_ONLY_ON_LOGIN
332			if (login_shell)
333			#endif
334	sf-exg	1.31	update_lastlog (pty, hostname);
335	root	1.1	#endif
336			}
337
338			/* ------------------------------------------------------------------------- */
339			/*
340			* remove utmp and wtmp entries
341			*/
342			void
343	root	1.3	ptytty_unix::logout ()
344	root	1.1	{
345	root	1.2	if (!cmd_pid)
346			return;
347
348	sf-exg	1.40	const char *pty = name;
349
350			if (!strncmp (pty, "/dev/", 5))
351			pty += 5;
352
353	root	1.1	#ifdef HAVE_STRUCT_UTMP
354	root	1.2	struct utmp tmput, ut = &this->ut;
355	sf-exg	1.45	fill_utmp (ut, false, cmd_pid, pty, 0, 0);
356	root	1.1	#endif
357
358			#ifdef HAVE_STRUCT_UTMPX
359	sf-exg	1.46	struct utmpx tmputx, utx = &this->utx;
360	sf-exg	1.45	fill_utmpx (utx, false, cmd_pid, pty, 0, 0);
361	root	1.1	#endif
362
363			/*
364			* Write ending wtmp entry
365			*/
366			#ifdef WTMP_SUPPORT
367	root	1.2	#ifdef LOG_ONLY_ON_LOGIN
368			if (login_shell)
369			#endif
370	root	1.1	{
371			# ifdef HAVE_STRUCT_UTMP
372			# ifdef HAVE_UPDWTMP
373	root	1.3	updwtmp (WTMP_FILE, ut);
374	root	1.1	# else
375	root	1.3	update_wtmp (WTMP_FILE, ut);
376	root	1.1	# endif
377			# endif
378	root	1.2	# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
379	root	1.3	updwtmpx (WTMPX_FILE, utx);
380	root	1.1	# endif
381			}
382			#endif
383
384			/*
385			* Write utmp entry
386			*/
387			#ifdef HAVE_STRUCT_UTMP
388			# ifdef HAVE_UTMP_PID
389	sf-exg	1.37	setutent ();
390	sf-exg	1.42	tmput = getutid (ut);
391	sf-exg	1.32	if (tmput && tmput->ut_pid == cmd_pid)
392	root	1.1	pututline (ut);
393			endutent ();
394			# else
395	root	1.3	write_bsd_utmp (utmp_pos, ut);
396	root	1.1	# endif
397			#endif
398			#ifdef HAVE_STRUCT_UTMPX
399	sf-exg	1.37	setutxent ();
400	sf-exg	1.42	tmputx = getutxid (utx);
401	sf-exg	1.32	if (tmputx && tmputx->ut_pid == cmd_pid)
402	root	1.1	pututxline (utx);
403			endutxent ();
404			#endif
405	root	1.2
406			cmd_pid = 0;
407	root	1.1	}
408
409	root	1.5	#else
410			void
411			ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
412			{
413			}
414			#endif
415