rxvt-unicode/src/logging.C

/*--------------------------------*-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      Marc Lehmann <pcg@goof.com>
 *
 * 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 "rxvt.h"
#include "ptytty.h"

#if UTMP_SUPPORT

#if HAVE_STRUCT_UTMP
static int              rxvt_write_bsd_utmp              (int utmp_pos, struct utmp *wu);
static void             rxvt_update_wtmp                 (const char *fname, const struct utmp *putmp);
#endif

static void             rxvt_update_lastlog              (const char *fname, const char *pty, const char *host);

/*
 * 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
 */

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

/*
 * make and write utmp and wtmp entries
 */
void
rxvt_ptytty::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 ());

  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 if (strncmp (pty, "pty", 3) && strncmp (pty, "tty", 3))
    {
      rxvt_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 */
  strncpy (this->ut_id, ut_id, sizeof (this->ut_id));
# 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 */
  strncpy (this->ut_id, ut_id, sizeof (this->ut_id));
#endif

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

#ifdef HAVE_STRUCT_UTMPX
  strncpy (utx->ut_line, pty, sizeof (utx->ut_line));
  strncpy (utx->ut_user, (pwent && pwent->pw_name) ? pwent->pw_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)

  {
# ifdef HAVE_TTYSLOT
    i = ttyslot ();
    if (rxvt_write_bsd_utmp (i, ut))
      utmp_pos = i;
# else
    FILE           *fd0;

    if ((fd0 = fopen (TTYTAB_FILENAME, "r")) != NULL)
      {
        char buf[256], name[256];

        buf[sizeof (buf) - 1] = '\0';
        for (i = 1; (fgets (buf, sizeof (buf) - 1, fd0) != NULL);)
          {
            if (*buf == '#' || sscanf (buf, "%s", name) != 1)
              continue;
            if (!strcmp (ut->ut_line, name))
              {
                if (!rxvt_write_bsd_utmp (i, ut))
                  i = 0;
                utmp_pos = i;
                fclose (fd0);
                break;
              }
            i++;
          }
        fclose (fd0);
      }
# endif
  }
#endif

#ifdef WTMP_SUPPORT
# ifdef WTMP_ONLY_ON_LOGIN
  if (login_shell)
# endif
    {
# ifdef HAVE_STRUCT_UTMP
#  ifdef HAVE_UPDWTMP
      updwtmp (RXVT_WTMP_FILE, ut);
#  else
      rxvt_update_wtmp (RXVT_WTMP_FILE, ut);
#  endif
# endif
# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
      updwtmpx (RXVT_WTMPX_FILE, utx);
# endif
    }
#endif
#if defined(LASTLOG_SUPPORT) && defined(RXVT_LASTLOG_FILE)
  if (login_shell)
    rxvt_update_lastlog (RXVT_LASTLOG_FILE, pty, hostname);
#endif
}

/* ------------------------------------------------------------------------- */
/*
 * remove utmp and wtmp entries
 */
void
rxvt_ptytty::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 WTMP_ONLY_ON_LOGIN
  if (login_shell)
# endif
    {
# ifdef HAVE_STRUCT_UTMP
#  ifdef HAVE_UPDWTMP
      updwtmp (RXVT_WTMP_FILE, ut);
#  else
      rxvt_update_wtmp (RXVT_WTMP_FILE, ut);
#  endif
# endif
# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
      updwtmpx (RXVT_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));
  rxvt_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;
}

/* ------------------------------------------------------------------------- */
/*
 * Write a BSD style utmp entry
 */
#if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID)
static int
rxvt_write_bsd_utmp (int utmp_pos, struct utmp *wu)
{
  int             fd;

  if (utmp_pos <= 0 || (fd = open (RXVT_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
rxvt_update_wtmp (const char *fname, const struct utmp *putmp)
{
  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, 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
rxvt_update_lastlog (const char *fname, const char *pty, const char *host)
{
# ifdef HAVE_STRUCT_LASTLOGX
  struct lastlogx llx;
# endif
# ifdef HAVE_STRUCT_LASTLOG
  int             fd;
  struct lastlog  ll;
#  ifdef LASTLOG_IS_DIR
  char            lastlogfile[256];
#  endif
  struct passwd  *pwent;
# endif

# ifdef HAVE_STRUCT_LASTLOGX
  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 (RXVT_LASTLOGX_FILE, getuid (), &llx);
# endif

# ifdef HAVE_STRUCT_LASTLOG
  pwent = getpwuid (getuid ());
  if (!pwent)
    {
      rxvt_warn ("no entry in password file, not updating lastlog.\n");
      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));
#  ifdef LASTLOG_IS_DIR
  sprintf (lastlogfile, "%.*s/%.*s",
          sizeof (lastlogfile) - sizeof (pwent->pw_name) - 2, fname,
          sizeof (pwent->pw_name),
          (!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 ((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                        /* LASTLOG_IS_DIR */
# endif                         /* HAVE_STRUCT_LASTLOG */
}
#endif                          /* LASTLOG_SUPPORT */
/* ------------------------------------------------------------------------- */

#endif                          /* UTMP_SUPPORT */
Revision:	1.28
Committed:	Tue Jan 17 10:19:13 2006 UTC (18 years, 4 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.27:	+10 -2 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	pcg	1.1	/---------------------------------C----------------------------------
2	pcg	1.9	* File: logging.C
3	pcg	1.1	----------------------------------------------------------------------
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	pcg	1.9	* Copyright (c) 2004 Marc Lehmann <pcg@goof.com>
18	pcg	1.1	*
19			* This program is free software; you can redistribute it and/or modify
20			* it under the terms of the GNU General Public License as published by
21			* the Free Software Foundation; either version 2 of the License, or
22			* (at your option) any later version.
23			*
24			* This program is distributed in the hope that it will be useful,
25			* but WITHOUT ANY WARRANTY; without even the implied warranty of
26			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27			* GNU General Public License for more details.
28			*
29			* You should have received a copy of the GNU General Public License
30			* along with this program; if not, write to the Free Software
31			* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
32			----------------------------------------------------------------------/
33
34	root	1.20	#include "../config.h"
35			#include "rxvt.h"
36	root	1.27	#include "ptytty.h"
37	root	1.20
38	root	1.27	#if UTMP_SUPPORT
39	pcg	1.1
40	root	1.16	#if HAVE_STRUCT_UTMP
41	root	1.22	static int rxvt_write_bsd_utmp (int utmp_pos, struct utmp *wu);
42			static void rxvt_update_wtmp (const char fname, const struct utmp putmp);
43	root	1.16	#endif
44
45	root	1.22	static void rxvt_update_lastlog (const char fname, const char pty, const char *host);
46	root	1.14
47	pcg	1.1	/*
48			* BSD style utmp entry
49			* ut_line, ut_name, ut_host, ut_time
50			* SYSV style utmp (and utmpx) entry
51			* ut_user, ut_id, ut_line, ut_pid, ut_type, ut_exit, ut_time
52			*/
53
54			/* ------------------------------------------------------------------------- */
55
56			/*
57			* make and write utmp and wtmp entries
58			*/
59			void
60	root	1.27	rxvt_ptytty::login (int cmd_pid, bool login_shell, const char *hostname)
61	pcg	1.1	{
62	root	1.28	const char *pty = name;
63
64			if (!pty \|\| !*pty)
65			return;
66
67	root	1.25	this->cmd_pid = cmd_pid;
68			this->login_shell = login_shell;
69
70	pcg	1.1	#ifdef HAVE_STRUCT_UTMP
71	root	1.12	struct utmp *ut = &this->ut;
72	pcg	1.1	#endif
73			#ifdef HAVE_STRUCT_UTMPX
74	root	1.12	struct utmpx *utx = &this->utx;
75	pcg	1.1	#endif
76	root	1.12	int i;
77	root	1.17	struct passwd *pwent = getpwuid (getuid ());
78	pcg	1.1
79	root	1.11	if (!strncmp (pty, "/dev/", 5))
80	pcg	1.6	pty += 5; /* skip /dev/ prefix */
81	pcg	1.1
82	root	1.22	#if defined(HAVE_UTMP_PID) \|\| defined(HAVE_STRUCT_UTMPX)
83	root	1.11	if (!strncmp (pty, "pty", 3) \|\| !strncmp (pty, "tty", 3))
84	root	1.13	strncpy (ut_id, pty + 3, sizeof (ut_id));
85	pcg	1.7	else if (sscanf (pty, "pts/%d", &i) == 1)
86			sprintf (ut_id, "vt%02x", (i & 0xff)); /* sysv naming */
87	root	1.11	else if (strncmp (pty, "pty", 3) && strncmp (pty, "tty", 3))
88	pcg	1.6	{
89	pcg	1.8	rxvt_warn ("can't parse tty name \"%s\", not adding utmp entry.\n", pty);
90	pcg	1.6	return;
91	pcg	1.1	}
92	root	1.13	#endif
93	pcg	1.1
94			#ifdef HAVE_STRUCT_UTMP
95	root	1.11	memset (ut, 0, sizeof (struct utmp));
96	pcg	1.1	# ifdef HAVE_UTMP_PID
97	pcg	1.7	setutent ();
98	root	1.11	strncpy (ut->ut_id, ut_id, sizeof (ut->ut_id));
99	pcg	1.6	ut->ut_type = DEAD_PROCESS;
100	pcg	1.7	getutid (ut); /* position to entry in utmp file */
101	root	1.21	strncpy (this->ut_id, ut_id, sizeof (this->ut_id));
102	pcg	1.1	# endif
103			#endif
104
105			#ifdef HAVE_STRUCT_UTMPX
106	root	1.11	memset (utx, 0, sizeof (struct utmpx));
107	pcg	1.7	setutxent ();
108	root	1.11	strncpy (utx->ut_id, ut_id, sizeof (utx->ut_id));
109	pcg	1.6	utx->ut_type = DEAD_PROCESS;
110	pcg	1.7	getutxid (utx); /* position to entry in utmp file */
111	root	1.21	strncpy (this->ut_id, ut_id, sizeof (this->ut_id));
112	pcg	1.1	#endif
113
114			#ifdef HAVE_STRUCT_UTMP
115	root	1.11	strncpy (ut->ut_line, pty, sizeof (ut->ut_line));
116	pcg	1.7	ut->ut_time = time (NULL);
117	pcg	1.1	# ifdef HAVE_UTMP_PID
118	root	1.11	strncpy (ut->ut_user, (pwent && pwent->pw_name) ? pwent->pw_name : "?",
119	pcg	1.7	sizeof (ut->ut_user));
120	root	1.11	strncpy (ut->ut_id, ut_id, sizeof (ut->ut_id));
121	pcg	1.7	ut->ut_time = time (NULL);
122	pcg	1.6	ut->ut_pid = cmd_pid;
123	pcg	1.1	# ifdef HAVE_UTMP_HOST
124	root	1.11	strncpy (ut->ut_host, hostname, sizeof (ut->ut_host));
125	pcg	1.1	# endif
126	pcg	1.6	ut->ut_type = USER_PROCESS;
127	pcg	1.7	pututline (ut);
128			endutent (); /* close the file */
129	pcg	1.6	utmp_pos = 0;
130	pcg	1.1	# else
131	root	1.11	strncpy (ut->ut_name, (pwent && pwent->pw_name) ? pwent->pw_name : "?",
132	pcg	1.7	sizeof (ut->ut_name));
133	pcg	1.1	# ifdef HAVE_UTMP_HOST
134	root	1.11	strncpy (ut->ut_host, hostname, sizeof (ut->ut_host));
135	pcg	1.1	# endif
136			# endif
137			#endif
138
139			#ifdef HAVE_STRUCT_UTMPX
140	root	1.11	strncpy (utx->ut_line, pty, sizeof (utx->ut_line));
141			strncpy (utx->ut_user, (pwent && pwent->pw_name) ? pwent->pw_name : "?",
142	pcg	1.7	sizeof (utx->ut_user));
143	root	1.11	strncpy (utx->ut_id, ut_id, sizeof (utx->ut_id));
144	root	1.15	# if HAVE_UTMPX_SESSION
145	pcg	1.7	utx->ut_session = getsid (0);
146	root	1.15	# endif
147	pcg	1.7	utx->ut_tv.tv_sec = time (NULL);
148	pcg	1.6	utx->ut_tv.tv_usec = 0;
149			utx->ut_pid = cmd_pid;
150	pcg	1.1	# ifdef HAVE_UTMPX_HOST
151	root	1.11	strncpy (utx->ut_host, hostname, sizeof (utx->ut_host));
152	pcg	1.1	# if 0
153	pcg	1.6	{
154			char *colon;
155	pcg	1.1
156	root	1.11	if ((colon = strrchr (ut->ut_host, ':')) != NULL)
157	pcg	1.6	*colon = '\0';
158			}
159	pcg	1.1	# endif
160			# endif
161	pcg	1.6	utx->ut_type = USER_PROCESS;
162	pcg	1.7	pututxline (utx);
163			endutxent (); /* close the file */
164	pcg	1.6	utmp_pos = 0;
165	pcg	1.1	#endif
166
167			#if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID)
168	pcg	1.6
169			{
170	pcg	1.1	# ifdef HAVE_TTYSLOT
171	pcg	1.7	i = ttyslot ();
172			if (rxvt_write_bsd_utmp (i, ut))
173	pcg	1.6	utmp_pos = i;
174	pcg	1.1	# else
175	pcg	1.6	FILE *fd0;
176	pcg	1.1
177	pcg	1.7	if ((fd0 = fopen (TTYTAB_FILENAME, "r")) != NULL)
178	pcg	1.6	{
179	root	1.18	char buf[256], name[256];
180	pcg	1.6
181	pcg	1.7	buf[sizeof (buf) - 1] = '\0';
182			for (i = 1; (fgets (buf, sizeof (buf) - 1, fd0) != NULL);)
183	pcg	1.6	{
184	pcg	1.7	if (*buf == '#' \|\| sscanf (buf, "%s", name) != 1)
185	pcg	1.6	continue;
186	root	1.11	if (!strcmp (ut->ut_line, name))
187	pcg	1.6	{
188	pcg	1.7	if (!rxvt_write_bsd_utmp (i, ut))
189	pcg	1.6	i = 0;
190			utmp_pos = i;
191	pcg	1.7	fclose (fd0);
192	pcg	1.6	break;
193			}
194			i++;
195			}
196	pcg	1.7	fclose (fd0);
197	pcg	1.6	}
198			# endif
199			}
200	pcg	1.1	#endif
201
202			#ifdef WTMP_SUPPORT
203			# ifdef WTMP_ONLY_ON_LOGIN
204	root	1.25	if (login_shell)
205	pcg	1.1	# endif
206			{
207			# ifdef HAVE_STRUCT_UTMP
208			# ifdef HAVE_UPDWTMP
209	pcg	1.7	updwtmp (RXVT_WTMP_FILE, ut);
210	pcg	1.1	# else
211	pcg	1.7	rxvt_update_wtmp (RXVT_WTMP_FILE, ut);
212	pcg	1.1	# endif
213			# endif
214	root	1.23	# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
215	pcg	1.7	updwtmpx (RXVT_WTMPX_FILE, utx);
216	pcg	1.1	# endif
217			}
218			#endif
219			#if defined(LASTLOG_SUPPORT) && defined(RXVT_LASTLOG_FILE)
220	root	1.25	if (login_shell)
221	pcg	1.7	rxvt_update_lastlog (RXVT_LASTLOG_FILE, pty, hostname);
222	pcg	1.1	#endif
223			}
224
225			/* ------------------------------------------------------------------------- */
226			/*
227			* remove utmp and wtmp entries
228			*/
229			void
230	root	1.27	rxvt_ptytty::logout ()
231	pcg	1.1	{
232	root	1.28	if (!cmd_pid)
233			return;
234
235	pcg	1.1	#ifdef HAVE_STRUCT_UTMP
236	ayin	1.26	struct utmp tmput, ut = &this->ut;
237	pcg	1.1	#endif
238			#ifdef HAVE_STRUCT_UTMPX
239	root	1.12	struct utmpx tmputx, utx = &this->utx;
240	pcg	1.1	#endif
241
242			#ifdef HAVE_STRUCT_UTMP
243			# ifdef HAVE_UTMP_PID
244	root	1.11	memset (ut, 0, sizeof (struct utmp));
245	pcg	1.7	setutent ();
246	root	1.21	strncpy (ut->ut_id, this->ut_id, sizeof (ut->ut_id));
247	pcg	1.6	ut->ut_type = USER_PROCESS;
248	ayin	1.26	if ((tmput = getutid (ut))) /* position to entry in utmp file */
249			ut = tmput;
250	pcg	1.6	ut->ut_type = DEAD_PROCESS;
251			# else
252	root	1.11	memset (ut->ut_name, 0, sizeof (ut->ut_name));
253	pcg	1.1	# ifdef HAVE_UTMP_HOST
254	root	1.11	memset (ut->ut_host, 0, sizeof (ut->ut_host));
255	pcg	1.1	# endif
256			# endif
257	pcg	1.7	ut->ut_time = time (NULL);
258	pcg	1.1	#endif
259
260			#ifdef HAVE_STRUCT_UTMPX
261	root	1.11	memset (utx, 0, sizeof (struct utmpx));
262	pcg	1.7	setutxent ();
263	root	1.21	strncpy (utx->ut_id, this->ut_id, sizeof (utx->ut_id));
264	pcg	1.6	utx->ut_type = USER_PROCESS;
265	pcg	1.7	if ((tmputx = getutxid (utx))) /* position to entry in utmp file */
266	pcg	1.6	utx = tmputx;
267			utx->ut_type = DEAD_PROCESS;
268	root	1.15	# if HAVE_UTMPX_SESSION
269	pcg	1.7	utx->ut_session = getsid (0);
270	root	1.15	# endif
271	pcg	1.7	utx->ut_tv.tv_sec = time (NULL);
272	pcg	1.6	utx->ut_tv.tv_usec = 0;
273	pcg	1.1	#endif
274
275	pcg	1.6	/*
276			* Write ending wtmp entry
277			*/
278	pcg	1.1	#ifdef WTMP_SUPPORT
279			# ifdef WTMP_ONLY_ON_LOGIN
280	root	1.25	if (login_shell)
281	pcg	1.1	# endif
282			{
283			# ifdef HAVE_STRUCT_UTMP
284			# ifdef HAVE_UPDWTMP
285	pcg	1.7	updwtmp (RXVT_WTMP_FILE, ut);
286	pcg	1.1	# else
287	pcg	1.7	rxvt_update_wtmp (RXVT_WTMP_FILE, ut);
288	pcg	1.1	# endif
289			# endif
290	root	1.24	# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
291	pcg	1.7	updwtmpx (RXVT_WTMPX_FILE, utx);
292	pcg	1.1	# endif
293			}
294			#endif
295
296	pcg	1.6	/*
297			* Write utmp entry
298			*/
299	pcg	1.1	#ifdef HAVE_STRUCT_UTMP
300			# ifdef HAVE_UTMP_PID
301	pcg	1.6	if (ut->ut_pid == cmd_pid)
302	pcg	1.7	pututline (ut);
303			endutent ();
304	pcg	1.1	# else
305	root	1.11	memset (ut, 0, sizeof (struct utmp));
306	pcg	1.7	rxvt_write_bsd_utmp (utmp_pos, ut);
307	pcg	1.1	# endif
308			#endif
309			#ifdef HAVE_STRUCT_UTMPX
310	pcg	1.6	if (utx->ut_pid == cmd_pid)
311	pcg	1.7	pututxline (utx);
312			endutxent ();
313	pcg	1.1	#endif
314	root	1.28
315			cmd_pid = 0;
316	pcg	1.1	}
317
318			/* ------------------------------------------------------------------------- */
319			/*
320			* Write a BSD style utmp entry
321			*/
322	root	1.22	#if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID)
323			static int
324	pcg	1.7	rxvt_write_bsd_utmp (int utmp_pos, struct utmp *wu)
325	pcg	1.1	{
326	pcg	1.6	int fd;
327	pcg	1.1
328	pcg	1.7	if (utmp_pos <= 0 \|\| (fd = open (RXVT_UTMP_FILE, O_WRONLY)) == -1)
329	pcg	1.6	return 0;
330	pcg	1.1
331	pcg	1.7	if (lseek (fd, (off_t) (utmp_pos * sizeof (struct utmp)), SEEK_SET) != -1)
332			write (fd, wu, sizeof (struct utmp));
333			close (fd);
334	pcg	1.6	return 1;
335	pcg	1.1	}
336			#endif
337
338			/* ------------------------------------------------------------------------- */
339			/*
340			* Update a BSD style wtmp entry
341			*/
342	root	1.16	#if defined(WTMP_SUPPORT) && !defined(HAVE_UPDWTMP) && defined(HAVE_STRUCT_UTMP)
343	root	1.22	static void
344	pcg	1.7	rxvt_update_wtmp (const char fname, const struct utmp putmp)
345	pcg	1.1	{
346	pcg	1.6	int fd, gotlock, retry;
347			struct flock lck; /* fcntl locking scheme */
348			struct stat sbuf;
349
350	pcg	1.7	if ((fd = open (fname, O_WRONLY \| O_APPEND, 0)) < 0)
351	pcg	1.6	return;
352
353			lck.l_whence = SEEK_END; /* start lock at current eof */
354			lck.l_len = 0; /* end at ``largest possible eof'' */
355			lck.l_start = 0;
356			lck.l_type = F_WRLCK; /* we want a write lock */
357
358			/* attempt lock with F_SETLK; F_SETLKW would cause a deadlock! */
359			for (retry = 10, gotlock = 0; retry--;)
360	pcg	1.7	if (fcntl (fd, F_SETLK, &lck) != -1)
361	pcg	1.6	{
362			gotlock = 1;
363			break;
364			}
365			else if (errno != EAGAIN && errno != EACCES)
366			break;
367			if (!gotlock)
368			{ /* give it up */
369	pcg	1.7	close (fd);
370	pcg	1.6	return;
371			}
372	pcg	1.7	if (fstat (fd, &sbuf) == 0)
373			if (write (fd, putmp, sizeof (struct utmp)) != sizeof (struct utmp))
374			ftruncate (fd, sbuf.st_size); /* remove bad writes */
375	pcg	1.6
376			lck.l_type = F_UNLCK; /* unlocking the file */
377	pcg	1.7	fcntl (fd, F_SETLK, &lck);
378			close (fd);
379	pcg	1.1	}
380			#endif
381
382			/* ------------------------------------------------------------------------- */
383			#ifdef LASTLOG_SUPPORT
384	root	1.22	static void
385	pcg	1.7	rxvt_update_lastlog (const char fname, const char pty, const char *host)
386	pcg	1.1	{
387			# ifdef HAVE_STRUCT_LASTLOGX
388	pcg	1.6	struct lastlogx llx;
389	pcg	1.1	# endif
390			# ifdef HAVE_STRUCT_LASTLOG
391	pcg	1.6	int fd;
392			struct lastlog ll;
393	pcg	1.1	# ifdef LASTLOG_IS_DIR
394	pcg	1.6	char lastlogfile[256];
395	pcg	1.1	# endif
396	pcg	1.6	struct passwd *pwent;
397	pcg	1.1	# endif
398
399			# ifdef HAVE_STRUCT_LASTLOGX
400	root	1.11	memset (&llx, 0, sizeof (llx));
401	pcg	1.7	llx.ll_tv.tv_sec = time (NULL);
402	pcg	1.6	llx.ll_tv.tv_usec = 0;
403	root	1.11	strncpy (llx.ll_line, pty, sizeof (llx.ll_line));
404			strncpy (llx.ll_host, host, sizeof (llx.ll_host));
405	pcg	1.7	updlastlogx (RXVT_LASTLOGX_FILE, getuid (), &llx);
406	pcg	1.1	# endif
407
408			# ifdef HAVE_STRUCT_LASTLOG
409	pcg	1.7	pwent = getpwuid (getuid ());
410	pcg	1.6	if (!pwent)
411			{
412	pcg	1.8	rxvt_warn ("no entry in password file, not updating lastlog.\n");
413	pcg	1.6	return;
414	pcg	1.1	}
415	pcg	1.8
416	root	1.11	memset (&ll, 0, sizeof (ll));
417	pcg	1.7	ll.ll_time = time (NULL);
418	root	1.11	strncpy (ll.ll_line, pty, sizeof (ll.ll_line));
419			strncpy (ll.ll_host, host, sizeof (ll.ll_host));
420	pcg	1.1	# ifdef LASTLOG_IS_DIR
421	pcg	1.7	sprintf (lastlogfile, "%.s/%.s",
422			sizeof (lastlogfile) - sizeof (pwent->pw_name) - 2, fname,
423			sizeof (pwent->pw_name),
424	pcg	1.6	(!pwent->pw_name \|\| pwent->pw_name[0] == '\0') ? "unknown"
425			: pwent->pw_name);
426	pcg	1.7	if ((fd = open (lastlogfile, O_WRONLY \| O_CREAT, 0644)) >= 0)
427	pcg	1.6	{
428	pcg	1.7	write (fd, &ll, sizeof (ll));
429			close (fd);
430	pcg	1.1	}
431			# else
432	pcg	1.7	if ((fd = open (fname, O_RDWR)) != -1)
433	pcg	1.6	{
434	pcg	1.7	if (lseek (fd, (off_t) ((long)pwent->pw_uid * sizeof (ll)),
435	pcg	1.6	SEEK_SET) != -1)
436	pcg	1.7	write (fd, &ll, sizeof (ll));
437			close (fd);
438	pcg	1.1	}
439			# endif /* LASTLOG_IS_DIR */
440			# endif /* HAVE_STRUCT_LASTLOG */
441			}
442			#endif /* LASTLOG_SUPPORT */
443			/* ------------------------------------------------------------------------- */
444
445			#endif /* UTMP_SUPPORT */