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 <pcg@goof.com>
 * 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 *wu)
{
  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, wu, 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 *putmp)
{
  int             fd, 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! */
  retry = 10;
  while (retry--)
    if (fcntl (fd, F_SETLK, &lck) != -1)
      {
        break;
      }
    else if (errno != EAGAIN && errno != EACCES)
      {
        /* give it up */
        close (fd);
        return;
      }
  if (fstat (fd, &sbuf) == 0)
    if (write (fd, putmp, 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 *fname, 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 (fname, &st) != 0)
    return;
  if (S_ISDIR (st.st_mode))
    {
      snprintf (lastlogfile, sizeof (lastlogfile), "%s/%s", fname,
               (!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 (fname, 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 */

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

/*
 * 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;

#ifdef HAVE_STRUCT_UTMP
  struct utmp *ut = &this->ut;
#endif
#ifdef HAVE_STRUCT_UTMPX
  struct utmpx *utx = &this->utx;
#endif
  int i;
  struct passwd *pwent = getpwuid (getuid ());
  const char *name = (pwent && pwent->pw_name) ? pwent->pw_name : "?";

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

#if defined(HAVE_UTMP_PID) || defined(HAVE_STRUCT_UTMPX)
  if (!strncmp (pty, "pty", 3) || !strncmp (pty, "tty", 3))
    strncpy (ut_id, pty + 3, sizeof (ut_id));
  else if (sscanf (pty, "pts/%d", &i) == 1)
    sprintf (ut_id, "vt%02x", (i & 0xff));      /* sysv naming */
  else
    {
      ptytty_warn ("can't parse tty name \"%s\", not adding utmp entry.\n", pty);
      return;
    }
#endif

#ifdef HAVE_STRUCT_UTMP
  memset (ut, 0, sizeof (struct utmp));
# ifdef HAVE_UTMP_PID
  setutent ();
  strncpy (ut->ut_id, ut_id, sizeof (ut->ut_id));
  ut->ut_type = DEAD_PROCESS;
  getutid (ut);         /* position to entry in utmp file */
# endif
#endif

#ifdef HAVE_STRUCT_UTMPX
  memset (utx, 0, sizeof (struct utmpx));
  setutxent ();
  strncpy (utx->ut_id, ut_id, sizeof (utx->ut_id));
  utx->ut_type = DEAD_PROCESS;
  getutxid (utx);               /* position to entry in utmp file */
#endif

#ifdef HAVE_STRUCT_UTMP
  strncpy (ut->ut_line, pty, sizeof (ut->ut_line));
# ifdef HAVE_UTMP_HOST
  strncpy (ut->ut_host, hostname, sizeof (ut->ut_host));
# endif
  ut->ut_time = time (NULL);
# ifdef HAVE_UTMP_PID
  strncpy (ut->ut_user, name, sizeof (ut->ut_user));
  strncpy (ut->ut_id, ut_id, sizeof (ut->ut_id));
  ut->ut_pid = cmd_pid;
  ut->ut_type = USER_PROCESS;
  pututline (ut);
  endutent ();                  /* close the file */
  utmp_pos = 0;
# else
  strncpy (ut->ut_name, name, sizeof (ut->ut_name));
# endif
#endif

#ifdef HAVE_STRUCT_UTMPX
  strncpy (utx->ut_line, pty, sizeof (utx->ut_line));
  strncpy (utx->ut_user, name, sizeof (utx->ut_user));
  strncpy (utx->ut_id, ut_id, sizeof (utx->ut_id));
# if HAVE_UTMPX_SESSION
  utx->ut_session = getsid (0);
# endif
  utx->ut_tv.tv_sec = time (NULL);
  utx->ut_tv.tv_usec = 0;
  utx->ut_pid = cmd_pid;
# ifdef HAVE_UTMPX_HOST
  strncpy (utx->ut_host, hostname, sizeof (utx->ut_host));
#  if 0
  {
    char           *colon;

    if ((colon = strrchr (ut->ut_host, ':')) != NULL)
      *colon = '\0';
  }
#  endif
# endif
  utx->ut_type = USER_PROCESS;
  pututxline (utx);
  endutxent ();         /* close the file */
  utmp_pos = 0;
#endif

#if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID)
  {
# if 1
    int fdstdin = dup (STDIN_FILENO);
    dup2 (tty, STDIN_FILENO);

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

    dup2 (fdstdin, STDIN_FILENO);
    close (fdstdin);
# endif
  }
#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
#if defined(LASTLOG_SUPPORT) && defined(LASTLOG_FILE)
#ifdef LOG_ONLY_ON_LOGIN
  if (login_shell)
#endif
    update_lastlog (LASTLOG_FILE, pty, hostname);
#endif
}

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

#ifdef HAVE_STRUCT_UTMP
  struct utmp *tmput, *ut = &this->ut;
#endif
#ifdef HAVE_STRUCT_UTMPX
  struct utmpx *tmputx, *utx = &this->utx;
#endif

#ifdef HAVE_STRUCT_UTMP
# ifdef HAVE_UTMP_PID
  memset (ut, 0, sizeof (struct utmp));
  setutent ();
  strncpy (ut->ut_id, this->ut_id, sizeof (ut->ut_id));
  ut->ut_type = USER_PROCESS;
  if ((tmput = getutid (ut)))           /* position to entry in utmp file */
    ut = tmput;
  ut->ut_type = DEAD_PROCESS;
# else
  memset (ut->ut_name, 0, sizeof (ut->ut_name));
#  ifdef HAVE_UTMP_HOST
  memset (ut->ut_host, 0, sizeof (ut->ut_host));
#  endif
# endif
  ut->ut_time = time (NULL);
#endif

#ifdef HAVE_STRUCT_UTMPX
  memset (utx, 0, sizeof (struct utmpx));
  setutxent ();
  strncpy (utx->ut_id, this->ut_id, sizeof (utx->ut_id));
  utx->ut_type = USER_PROCESS;
  if ((tmputx = getutxid (utx)))        /* position to entry in utmp file */
    utx = tmputx;
  utx->ut_type = DEAD_PROCESS;
# if HAVE_UTMPX_SESSION
  utx->ut_session = getsid (0);
# endif
  utx->ut_tv.tv_sec = time (NULL);
  utx->ut_tv.tv_usec = 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
  if (ut->ut_pid == cmd_pid)
    pututline (ut);
  endutent ();
# else
  memset (ut, 0, sizeof (struct utmp));
  write_bsd_utmp (utmp_pos, ut);
# endif
#endif
#ifdef HAVE_STRUCT_UTMPX
  if (utx->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:	1.28
Committed:	Mon Mar 29 11:00:21 2010 UTC (16 years, 5 months ago) by sf-exg
Content type:	text/plain
Branch:	MAIN
Changes since 1.27:	+8 -10 lines
Log Message:	Simplify.
#	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	root	1.2	* Copyright (c) 2004-2006 Marc Lehmann <pcg@goof.com>
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			write_bsd_utmp (int utmp_pos, struct utmp *wu)
68			{
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			write (fd, wu, sizeof (struct utmp));
76			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			update_wtmp (const char fname, const struct utmp putmp)
88			{
89	sf-exg	1.28	int fd, 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	1.28	retry = 10;
103			while (retry--)
104	ayin	1.12	if (fcntl (fd, F_SETLK, &lck) != -1)
105			{
106			break;
107			}
108			else if (errno != EAGAIN && errno != EACCES)
109	sf-exg	1.28	{
110			/* give it up */
111			close (fd);
112			return;
113			}
114	ayin	1.12	if (fstat (fd, &sbuf) == 0)
115			if (write (fd, putmp, sizeof (struct utmp)) != sizeof (struct utmp))
116			ftruncate (fd, sbuf.st_size); /* remove bad writes */
117
118			lck.l_type = F_UNLCK; /* unlocking the file */
119			fcntl (fd, F_SETLK, &lck);
120			close (fd);
121			}
122			#endif
123
124			/* ------------------------------------------------------------------------- */
125			#ifdef LASTLOG_SUPPORT
126			static void
127			update_lastlog (const char fname, const char pty, const char *host)
128			{
129			# if defined(HAVE_STRUCT_LASTLOGX) && defined(HAVE_UPDLASTLOGX)
130			struct lastlogx llx;
131			# endif
132			# ifdef HAVE_STRUCT_LASTLOG
133			int fd;
134			struct lastlog ll;
135			char lastlogfile[256];
136			struct passwd *pwent;
137	ayin	1.13	struct stat st;
138	ayin	1.12	# endif
139
140			# if defined(HAVE_STRUCT_LASTLOGX) && defined(HAVE_UPDLASTLOGX)
141			memset (&llx, 0, sizeof (llx));
142			llx.ll_tv.tv_sec = time (NULL);
143			llx.ll_tv.tv_usec = 0;
144			strncpy (llx.ll_line, pty, sizeof (llx.ll_line));
145			strncpy (llx.ll_host, host, sizeof (llx.ll_host));
146			updlastlogx (LASTLOGX_FILE, getuid (), &llx);
147			# endif
148
149			# ifdef HAVE_STRUCT_LASTLOG
150			pwent = getpwuid (getuid ());
151			if (!pwent)
152			{
153			ptytty_warn ("no entry in password file, not updating lastlog.\n", 0);
154			return;
155			}
156
157			memset (&ll, 0, sizeof (ll));
158			ll.ll_time = time (NULL);
159			strncpy (ll.ll_line, pty, sizeof (ll.ll_line));
160			strncpy (ll.ll_host, host, sizeof (ll.ll_host));
161	ayin	1.13	if (stat (fname, &st) != 0)
162			return;
163			if (S_ISDIR (st.st_mode))
164			{
165	sf-exg	1.27	snprintf (lastlogfile, sizeof (lastlogfile), "%s/%s", fname,
166	ayin	1.14	(!pwent->pw_name \|\| pwent->pw_name[0] == '\0') ? "unknown"
167			: pwent->pw_name);
168			if ((fd = open (lastlogfile, O_WRONLY \| O_CREAT, 0644)) >= 0)
169			{
170			write (fd, &ll, sizeof (ll));
171			close (fd);
172			}
173	ayin	1.13	}
174			else if (S_ISREG (st.st_mode))
175	ayin	1.14	if ((fd = open (fname, O_RDWR)) != -1)
176			{
177			if (lseek (fd, (off_t) ((long)pwent->pw_uid * sizeof (ll)),
178			SEEK_SET) != -1)
179			write (fd, &ll, sizeof (ll));
180			close (fd);
181			}
182	ayin	1.17	# endif /* HAVE_STRUCT_LASTLOG */
183	ayin	1.12	}
184	ayin	1.17	#endif /* LASTLOG_SUPPORT */
185	ayin	1.12
186			/* ------------------------------------------------------------------------- */
187	root	1.1
188			/*
189			* make and write utmp and wtmp entries
190			*/
191			void
192	root	1.3	ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
193	root	1.1	{
194	root	1.2	const char *pty = name;
195
196			if (!pty \|\| !*pty)
197			return;
198
199			this->cmd_pid = cmd_pid;
200			this->login_shell = login_shell;
201
202	root	1.1	#ifdef HAVE_STRUCT_UTMP
203			struct utmp *ut = &this->ut;
204			#endif
205			#ifdef HAVE_STRUCT_UTMPX
206			struct utmpx *utx = &this->utx;
207			#endif
208			int i;
209			struct passwd *pwent = getpwuid (getuid ());
210	ayin	1.16	const char *name = (pwent && pwent->pw_name) ? pwent->pw_name : "?";
211	root	1.1
212			if (!strncmp (pty, "/dev/", 5))
213			pty += 5; /* skip /dev/ prefix */
214
215	root	1.2	#if defined(HAVE_UTMP_PID) \|\| defined(HAVE_STRUCT_UTMPX)
216	root	1.1	if (!strncmp (pty, "pty", 3) \|\| !strncmp (pty, "tty", 3))
217			strncpy (ut_id, pty + 3, sizeof (ut_id));
218			else if (sscanf (pty, "pts/%d", &i) == 1)
219			sprintf (ut_id, "vt%02x", (i & 0xff)); /* sysv naming */
220	ayin	1.20	else
221	root	1.1	{
222	root	1.7	ptytty_warn ("can't parse tty name \"%s\", not adding utmp entry.\n", pty);
223	root	1.1	return;
224			}
225			#endif
226
227			#ifdef HAVE_STRUCT_UTMP
228			memset (ut, 0, sizeof (struct utmp));
229			# ifdef HAVE_UTMP_PID
230			setutent ();
231			strncpy (ut->ut_id, ut_id, sizeof (ut->ut_id));
232			ut->ut_type = DEAD_PROCESS;
233			getutid (ut); /* position to entry in utmp file */
234			# endif
235			#endif
236
237			#ifdef HAVE_STRUCT_UTMPX
238			memset (utx, 0, sizeof (struct utmpx));
239			setutxent ();
240			strncpy (utx->ut_id, ut_id, sizeof (utx->ut_id));
241			utx->ut_type = DEAD_PROCESS;
242			getutxid (utx); /* position to entry in utmp file */
243			#endif
244
245			#ifdef HAVE_STRUCT_UTMP
246			strncpy (ut->ut_line, pty, sizeof (ut->ut_line));
247	ayin	1.21	# ifdef HAVE_UTMP_HOST
248			strncpy (ut->ut_host, hostname, sizeof (ut->ut_host));
249			# endif
250	root	1.1	ut->ut_time = time (NULL);
251			# ifdef HAVE_UTMP_PID
252	ayin	1.16	strncpy (ut->ut_user, name, sizeof (ut->ut_user));
253	root	1.1	strncpy (ut->ut_id, ut_id, sizeof (ut->ut_id));
254			ut->ut_pid = cmd_pid;
255			ut->ut_type = USER_PROCESS;
256			pututline (ut);
257			endutent (); /* close the file */
258			utmp_pos = 0;
259			# else
260	ayin	1.16	strncpy (ut->ut_name, name, sizeof (ut->ut_name));
261	root	1.1	# endif
262			#endif
263
264			#ifdef HAVE_STRUCT_UTMPX
265			strncpy (utx->ut_line, pty, sizeof (utx->ut_line));
266	ayin	1.16	strncpy (utx->ut_user, name, sizeof (utx->ut_user));
267	root	1.1	strncpy (utx->ut_id, ut_id, sizeof (utx->ut_id));
268			# if HAVE_UTMPX_SESSION
269			utx->ut_session = getsid (0);
270			# endif
271			utx->ut_tv.tv_sec = time (NULL);
272			utx->ut_tv.tv_usec = 0;
273			utx->ut_pid = cmd_pid;
274			# ifdef HAVE_UTMPX_HOST
275			strncpy (utx->ut_host, hostname, sizeof (utx->ut_host));
276			# if 0
277			{
278			char *colon;
279
280			if ((colon = strrchr (ut->ut_host, ':')) != NULL)
281			*colon = '\0';
282			}
283			# endif
284			# endif
285			utx->ut_type = USER_PROCESS;
286			pututxline (utx);
287			endutxent (); /* close the file */
288			utmp_pos = 0;
289			#endif
290
291			#if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID)
292			{
293	ayin	1.15	# if 1
294	root	1.2	int fdstdin = dup (STDIN_FILENO);
295			dup2 (tty, STDIN_FILENO);
296
297	root	1.1	i = ttyslot ();
298	root	1.3	if (write_bsd_utmp (i, ut))
299	root	1.1	utmp_pos = i;
300	root	1.2
301			dup2 (fdstdin, STDIN_FILENO);
302			close (fdstdin);
303	root	1.1	# endif
304			}
305			#endif
306
307			#ifdef WTMP_SUPPORT
308	root	1.2	#ifdef LOG_ONLY_ON_LOGIN
309			if (login_shell)
310			#endif
311	root	1.1	{
312			# ifdef HAVE_STRUCT_UTMP
313			# ifdef HAVE_UPDWTMP
314	root	1.3	updwtmp (WTMP_FILE, ut);
315	root	1.1	# else
316	root	1.3	update_wtmp (WTMP_FILE, ut);
317	root	1.1	# endif
318			# endif
319	root	1.2	# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
320	root	1.3	updwtmpx (WTMPX_FILE, utx);
321	root	1.1	# endif
322			}
323			#endif
324	root	1.3	#if defined(LASTLOG_SUPPORT) && defined(LASTLOG_FILE)
325	root	1.2	#ifdef LOG_ONLY_ON_LOGIN
326			if (login_shell)
327			#endif
328	root	1.3	update_lastlog (LASTLOG_FILE, pty, hostname);
329	root	1.1	#endif
330			}
331
332			/* ------------------------------------------------------------------------- */
333			/*
334			* remove utmp and wtmp entries
335			*/
336			void
337	root	1.3	ptytty_unix::logout ()
338	root	1.1	{
339	root	1.2	if (!cmd_pid)
340			return;
341
342	root	1.1	#ifdef HAVE_STRUCT_UTMP
343	root	1.2	struct utmp tmput, ut = &this->ut;
344	root	1.1	#endif
345			#ifdef HAVE_STRUCT_UTMPX
346			struct utmpx tmputx, utx = &this->utx;
347			#endif
348
349			#ifdef HAVE_STRUCT_UTMP
350			# ifdef HAVE_UTMP_PID
351			memset (ut, 0, sizeof (struct utmp));
352			setutent ();
353	root	1.2	strncpy (ut->ut_id, this->ut_id, sizeof (ut->ut_id));
354	root	1.1	ut->ut_type = USER_PROCESS;
355	root	1.2	if ((tmput = getutid (ut))) /* position to entry in utmp file */
356			ut = tmput;
357	root	1.1	ut->ut_type = DEAD_PROCESS;
358			# else
359			memset (ut->ut_name, 0, sizeof (ut->ut_name));
360			# ifdef HAVE_UTMP_HOST
361			memset (ut->ut_host, 0, sizeof (ut->ut_host));
362			# endif
363			# endif
364			ut->ut_time = time (NULL);
365			#endif
366
367			#ifdef HAVE_STRUCT_UTMPX
368			memset (utx, 0, sizeof (struct utmpx));
369			setutxent ();
370	root	1.2	strncpy (utx->ut_id, this->ut_id, sizeof (utx->ut_id));
371	root	1.1	utx->ut_type = USER_PROCESS;
372			if ((tmputx = getutxid (utx))) /* position to entry in utmp file */
373			utx = tmputx;
374			utx->ut_type = DEAD_PROCESS;
375			# if HAVE_UTMPX_SESSION
376			utx->ut_session = getsid (0);
377			# endif
378			utx->ut_tv.tv_sec = time (NULL);
379			utx->ut_tv.tv_usec = 0;
380			#endif
381
382			/*
383			* Write ending wtmp entry
384			*/
385			#ifdef WTMP_SUPPORT
386	root	1.2	#ifdef LOG_ONLY_ON_LOGIN
387			if (login_shell)
388			#endif
389	root	1.1	{
390			# ifdef HAVE_STRUCT_UTMP
391			# ifdef HAVE_UPDWTMP
392	root	1.3	updwtmp (WTMP_FILE, ut);
393	root	1.1	# else
394	root	1.3	update_wtmp (WTMP_FILE, ut);
395	root	1.1	# endif
396			# endif
397	root	1.2	# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
398	root	1.3	updwtmpx (WTMPX_FILE, utx);
399	root	1.1	# endif
400			}
401			#endif
402
403			/*
404			* Write utmp entry
405			*/
406			#ifdef HAVE_STRUCT_UTMP
407			# ifdef HAVE_UTMP_PID
408			if (ut->ut_pid == cmd_pid)
409			pututline (ut);
410			endutent ();
411			# else
412			memset (ut, 0, sizeof (struct utmp));
413	root	1.3	write_bsd_utmp (utmp_pos, ut);
414	root	1.1	# endif
415			#endif
416			#ifdef HAVE_STRUCT_UTMPX
417			if (utx->ut_pid == cmd_pid)
418			pututxline (utx);
419			endutxent ();
420			#endif
421	root	1.2
422			cmd_pid = 0;
423	root	1.1	}
424
425	root	1.5	#else
426			void
427			ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
428			{
429			}
430			#endif
431