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.
 *----------------------------------------------------------------------*/
/*----------------------------------------------------------------------*
 * Public:
 *      extern void cleanutent (void);
 *      extern void makeutent (const char * pty, const char * hostname);
 *
 * Private:
 *      rxvt_update_wtmp ();
 *----------------------------------------------------------------------*/

#include "../config.h"          /* NECESSARY */
#include "rxvt.h"               /* NECESSARY */
#include "logging.h"
#ifdef UTMP_SUPPORT

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

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_term::makeutent (const char *pty, const char *hostname)
{
#ifdef HAVE_STRUCT_UTMP
  struct utmp *ut = &this->ut;
#endif
#ifdef HAVE_STRUCT_UTMPX
  struct utmpx *utx = &this->utx;
#endif
#ifdef HAVE_UTMP_PID
  int i;
#endif
  struct passwd *pwent = getpwuid (getuid ());

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

#ifdef HAVE_UTMP_PID
  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 (ut_id, ut_id, sizeof (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 (ut_id, ut_id, sizeof (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)

  {
    int             i;
# 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 (options & Opt_loginShell)
# endif
    {
# ifdef HAVE_STRUCT_UTMP
#  ifdef HAVE_UPDWTMP
      updwtmp (RXVT_WTMP_FILE, ut);
#  else
      rxvt_update_wtmp (RXVT_WTMP_FILE, ut);
#  endif
# endif
# ifdef HAVE_STRUCT_UTMPX
#  if HAVE_UPDWTMPX
      updwtmpx (RXVT_WTMPX_FILE, utx);
#  else
      pututxline (utx);
#  endif
# endif
    }
#endif
#if defined(LASTLOG_SUPPORT) && defined(RXVT_LASTLOG_FILE)
  if (options & Opt_loginShell)
    rxvt_update_lastlog (RXVT_LASTLOG_FILE, pty, hostname);
#endif
}

/* ------------------------------------------------------------------------- */
/*
 * remove utmp and wtmp entries
 */
void
rxvt_term::cleanutent ()
{
#ifdef HAVE_STRUCT_UTMP
  struct utmp *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, ut_id, sizeof (ut->ut_id));
  ut->ut_type = USER_PROCESS;
  {
    struct utmp    *tmput = getutid (ut);

    if (tmput)          /* 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, 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 (options & Opt_loginShell)
# endif
    {
# ifdef HAVE_STRUCT_UTMP
#  ifdef HAVE_UPDWTMP
      updwtmp (RXVT_WTMP_FILE, ut);
#  else
      rxvt_update_wtmp (RXVT_WTMP_FILE, ut);
#  endif
# endif
# ifdef HAVE_STRUCT_UTMPX
#  if HAVE_UPDWTMPX
      updwtmpx (RXVT_WTMPX_FILE, utx);
#  else
      pututxline (utx);
#  endif
# 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
}

/* ------------------------------------------------------------------------- */
/*
 * Write a BSD style utmp entry
 */
#ifdef HAVE_UTMP_H
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)
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
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:	1.17
Committed:	Thu Feb 17 15:07:48 2005 UTC (19 years, 3 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-5_5, rel-5_4, rel-5_7, rel-5_3, rel-5_2, rel-5_8
Changes since 1.16:	+1 -1 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			* Public:
35			* extern void cleanutent (void);
36			* extern void makeutent (const char * pty, const char * hostname);
37			*
38			* Private:
39			* rxvt_update_wtmp ();
40			----------------------------------------------------------------------/
41
42			#include "../config.h" /* NECESSARY */
43			#include "rxvt.h" /* NECESSARY */
44			#include "logging.h"
45			#ifdef UTMP_SUPPORT
46
47	root	1.16	#if HAVE_STRUCT_UTMP
48	root	1.14	int rxvt_write_bsd_utmp (int utmp_pos, struct utmp *wu);
49			void rxvt_update_wtmp (const char fname, const struct utmp putmp);
50	root	1.16	#endif
51
52	root	1.14	void rxvt_update_lastlog (const char fname, const char pty, const char *host);
53
54	pcg	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
63			/*
64			* make and write utmp and wtmp entries
65			*/
66			void
67	pcg	1.4	rxvt_term::makeutent (const char pty, const char hostname)
68	pcg	1.1	{
69			#ifdef HAVE_STRUCT_UTMP
70	root	1.12	struct utmp *ut = &this->ut;
71	pcg	1.1	#endif
72			#ifdef HAVE_STRUCT_UTMPX
73	root	1.12	struct utmpx *utx = &this->utx;
74	pcg	1.1	#endif
75			#ifdef HAVE_UTMP_PID
76	root	1.12	int i;
77	pcg	1.1	#endif
78	root	1.17	struct passwd *pwent = getpwuid (getuid ());
79	pcg	1.1
80	root	1.11	if (!strncmp (pty, "/dev/", 5))
81	pcg	1.6	pty += 5; /* skip /dev/ prefix */
82	pcg	1.1
83	root	1.13	#ifdef HAVE_UTMP_PID
84	root	1.11	if (!strncmp (pty, "pty", 3) \|\| !strncmp (pty, "tty", 3))
85	root	1.13	strncpy (ut_id, pty + 3, sizeof (ut_id));
86	pcg	1.7	else if (sscanf (pty, "pts/%d", &i) == 1)
87			sprintf (ut_id, "vt%02x", (i & 0xff)); /* sysv naming */
88	root	1.11	else if (strncmp (pty, "pty", 3) && strncmp (pty, "tty", 3))
89	pcg	1.6	{
90	pcg	1.8	rxvt_warn ("can't parse tty name \"%s\", not adding utmp entry.\n", pty);
91	pcg	1.6	return;
92	pcg	1.1	}
93	root	1.13	#endif
94	pcg	1.1
95			#ifdef HAVE_STRUCT_UTMP
96	root	1.11	memset (ut, 0, sizeof (struct utmp));
97	pcg	1.1	# ifdef HAVE_UTMP_PID
98	pcg	1.7	setutent ();
99	root	1.11	strncpy (ut->ut_id, ut_id, sizeof (ut->ut_id));
100	pcg	1.6	ut->ut_type = DEAD_PROCESS;
101	pcg	1.7	getutid (ut); /* position to entry in utmp file */
102	root	1.11	strncpy (ut_id, ut_id, sizeof (ut_id));
103	pcg	1.1	# endif
104			#endif
105
106			#ifdef HAVE_STRUCT_UTMPX
107	root	1.11	memset (utx, 0, sizeof (struct utmpx));
108	pcg	1.7	setutxent ();
109	root	1.11	strncpy (utx->ut_id, ut_id, sizeof (utx->ut_id));
110	pcg	1.6	utx->ut_type = DEAD_PROCESS;
111	pcg	1.7	getutxid (utx); /* position to entry in utmp file */
112	root	1.11	strncpy (ut_id, ut_id, sizeof (ut_id));
113	pcg	1.1	#endif
114
115			#ifdef HAVE_STRUCT_UTMP
116	root	1.11	strncpy (ut->ut_line, pty, sizeof (ut->ut_line));
117	pcg	1.7	ut->ut_time = time (NULL);
118	pcg	1.1	# ifdef HAVE_UTMP_PID
119	root	1.11	strncpy (ut->ut_user, (pwent && pwent->pw_name) ? pwent->pw_name : "?",
120	pcg	1.7	sizeof (ut->ut_user));
121	root	1.11	strncpy (ut->ut_id, ut_id, sizeof (ut->ut_id));
122	pcg	1.7	ut->ut_time = time (NULL);
123	pcg	1.6	ut->ut_pid = cmd_pid;
124	pcg	1.1	# ifdef HAVE_UTMP_HOST
125	root	1.11	strncpy (ut->ut_host, hostname, sizeof (ut->ut_host));
126	pcg	1.1	# endif
127	pcg	1.6	ut->ut_type = USER_PROCESS;
128	pcg	1.7	pututline (ut);
129			endutent (); /* close the file */
130	pcg	1.6	utmp_pos = 0;
131	pcg	1.1	# else
132	root	1.11	strncpy (ut->ut_name, (pwent && pwent->pw_name) ? pwent->pw_name : "?",
133	pcg	1.7	sizeof (ut->ut_name));
134	pcg	1.1	# ifdef HAVE_UTMP_HOST
135	root	1.11	strncpy (ut->ut_host, hostname, sizeof (ut->ut_host));
136	pcg	1.1	# endif
137			# endif
138			#endif
139
140			#ifdef HAVE_STRUCT_UTMPX
141	root	1.11	strncpy (utx->ut_line, pty, sizeof (utx->ut_line));
142			strncpy (utx->ut_user, (pwent && pwent->pw_name) ? pwent->pw_name : "?",
143	pcg	1.7	sizeof (utx->ut_user));
144	root	1.11	strncpy (utx->ut_id, ut_id, sizeof (utx->ut_id));
145	root	1.15	# if HAVE_UTMPX_SESSION
146	pcg	1.7	utx->ut_session = getsid (0);
147	root	1.15	# endif
148	pcg	1.7	utx->ut_tv.tv_sec = time (NULL);
149	pcg	1.6	utx->ut_tv.tv_usec = 0;
150			utx->ut_pid = cmd_pid;
151	pcg	1.1	# ifdef HAVE_UTMPX_HOST
152	root	1.11	strncpy (utx->ut_host, hostname, sizeof (utx->ut_host));
153	pcg	1.1	# if 0
154	pcg	1.6	{
155			char *colon;
156	pcg	1.1
157	root	1.11	if ((colon = strrchr (ut->ut_host, ':')) != NULL)
158	pcg	1.6	*colon = '\0';
159			}
160	pcg	1.1	# endif
161			# endif
162	pcg	1.6	utx->ut_type = USER_PROCESS;
163	pcg	1.7	pututxline (utx);
164			endutxent (); /* close the file */
165	pcg	1.6	utmp_pos = 0;
166	pcg	1.1	#endif
167
168			#if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID)
169	pcg	1.6
170			{
171			int i;
172	pcg	1.1	# ifdef HAVE_TTYSLOT
173	pcg	1.7	i = ttyslot ();
174			if (rxvt_write_bsd_utmp (i, ut))
175	pcg	1.6	utmp_pos = i;
176	pcg	1.1	# else
177	pcg	1.6	FILE *fd0;
178	pcg	1.1
179	pcg	1.7	if ((fd0 = fopen (TTYTAB_FILENAME, "r")) != NULL)
180	pcg	1.6	{
181			char buf[256], name[256];
182
183	pcg	1.7	buf[sizeof (buf) - 1] = '\0';
184			for (i = 1; (fgets (buf, sizeof (buf) - 1, fd0) != NULL);)
185	pcg	1.6	{
186	pcg	1.7	if (*buf == '#' \|\| sscanf (buf, "%s", name) != 1)
187	pcg	1.6	continue;
188	root	1.11	if (!strcmp (ut->ut_line, name))
189	pcg	1.6	{
190	pcg	1.7	if (!rxvt_write_bsd_utmp (i, ut))
191	pcg	1.6	i = 0;
192			utmp_pos = i;
193	pcg	1.7	fclose (fd0);
194	pcg	1.6	break;
195			}
196			i++;
197			}
198	pcg	1.7	fclose (fd0);
199	pcg	1.6	}
200			# endif
201	pcg	1.1
202	pcg	1.6	}
203	pcg	1.1	#endif
204
205			#ifdef WTMP_SUPPORT
206			# ifdef WTMP_ONLY_ON_LOGIN
207	root	1.11	if (options & Opt_loginShell)
208	pcg	1.1	# endif
209			{
210			# ifdef HAVE_STRUCT_UTMP
211			# ifdef HAVE_UPDWTMP
212	pcg	1.7	updwtmp (RXVT_WTMP_FILE, ut);
213	pcg	1.1	# else
214	pcg	1.7	rxvt_update_wtmp (RXVT_WTMP_FILE, ut);
215	pcg	1.1	# endif
216			# endif
217			# ifdef HAVE_STRUCT_UTMPX
218	root	1.15	# if HAVE_UPDWTMPX
219	pcg	1.7	updwtmpx (RXVT_WTMPX_FILE, utx);
220	root	1.16	# else
221			pututxline (utx);
222	root	1.15	# endif
223	pcg	1.1	# endif
224			}
225			#endif
226			#if defined(LASTLOG_SUPPORT) && defined(RXVT_LASTLOG_FILE)
227	root	1.11	if (options & Opt_loginShell)
228	pcg	1.7	rxvt_update_lastlog (RXVT_LASTLOG_FILE, pty, hostname);
229	pcg	1.1	#endif
230			}
231
232			/* ------------------------------------------------------------------------- */
233			/*
234			* remove utmp and wtmp entries
235			*/
236			void
237	pcg	1.4	rxvt_term::cleanutent ()
238	pcg	1.1	{
239			#ifdef HAVE_STRUCT_UTMP
240	root	1.12	struct utmp *ut = &this->ut;
241	pcg	1.1	#endif
242			#ifdef HAVE_STRUCT_UTMPX
243	root	1.12	struct utmpx tmputx, utx = &this->utx;
244	pcg	1.1	#endif
245
246			#ifdef HAVE_STRUCT_UTMP
247			# ifdef HAVE_UTMP_PID
248	root	1.11	memset (ut, 0, sizeof (struct utmp));
249	pcg	1.7	setutent ();
250	root	1.11	strncpy (ut->ut_id, ut_id, sizeof (ut->ut_id));
251	pcg	1.6	ut->ut_type = USER_PROCESS;
252			{
253	pcg	1.7	struct utmp *tmput = getutid (ut);
254	pcg	1.6
255			if (tmput) /* position to entry in utmp file */
256			ut = tmput;
257			}
258			ut->ut_type = DEAD_PROCESS;
259			# else
260	root	1.11	memset (ut->ut_name, 0, sizeof (ut->ut_name));
261	pcg	1.1	# ifdef HAVE_UTMP_HOST
262	root	1.11	memset (ut->ut_host, 0, sizeof (ut->ut_host));
263	pcg	1.1	# endif
264			# endif
265	pcg	1.7	ut->ut_time = time (NULL);
266	pcg	1.1	#endif
267
268			#ifdef HAVE_STRUCT_UTMPX
269	root	1.11	memset (utx, 0, sizeof (struct utmpx));
270	pcg	1.7	setutxent ();
271	root	1.11	strncpy (utx->ut_id, ut_id, sizeof (utx->ut_id));
272	pcg	1.6	utx->ut_type = USER_PROCESS;
273	pcg	1.7	if ((tmputx = getutxid (utx))) /* position to entry in utmp file */
274	pcg	1.6	utx = tmputx;
275			utx->ut_type = DEAD_PROCESS;
276	root	1.15	# if HAVE_UTMPX_SESSION
277	pcg	1.7	utx->ut_session = getsid (0);
278	root	1.15	# endif
279	pcg	1.7	utx->ut_tv.tv_sec = time (NULL);
280	pcg	1.6	utx->ut_tv.tv_usec = 0;
281	pcg	1.1	#endif
282
283	pcg	1.6	/*
284			* Write ending wtmp entry
285			*/
286	pcg	1.1	#ifdef WTMP_SUPPORT
287			# ifdef WTMP_ONLY_ON_LOGIN
288	root	1.11	if (options & Opt_loginShell)
289	pcg	1.1	# endif
290			{
291			# ifdef HAVE_STRUCT_UTMP
292			# ifdef HAVE_UPDWTMP
293	pcg	1.7	updwtmp (RXVT_WTMP_FILE, ut);
294	pcg	1.1	# else
295	pcg	1.7	rxvt_update_wtmp (RXVT_WTMP_FILE, ut);
296	pcg	1.1	# endif
297			# endif
298			# ifdef HAVE_STRUCT_UTMPX
299	root	1.15	# if HAVE_UPDWTMPX
300	pcg	1.7	updwtmpx (RXVT_WTMPX_FILE, utx);
301	root	1.16	# else
302			pututxline (utx);
303	root	1.15	# endif
304	pcg	1.1	# endif
305			}
306			#endif
307
308	pcg	1.6	/*
309			* Write utmp entry
310			*/
311	pcg	1.1	#ifdef HAVE_STRUCT_UTMP
312			# ifdef HAVE_UTMP_PID
313	pcg	1.6	if (ut->ut_pid == cmd_pid)
314	pcg	1.7	pututline (ut);
315			endutent ();
316	pcg	1.1	# else
317	root	1.11	memset (ut, 0, sizeof (struct utmp));
318	pcg	1.7	rxvt_write_bsd_utmp (utmp_pos, ut);
319	pcg	1.1	# endif
320			#endif
321			#ifdef HAVE_STRUCT_UTMPX
322	pcg	1.6	if (utx->ut_pid == cmd_pid)
323	pcg	1.7	pututxline (utx);
324			endutxent ();
325	pcg	1.1	#endif
326			}
327
328			/* ------------------------------------------------------------------------- */
329			/*
330			* Write a BSD style utmp entry
331			*/
332			#ifdef HAVE_UTMP_H
333			int
334	pcg	1.7	rxvt_write_bsd_utmp (int utmp_pos, struct utmp *wu)
335	pcg	1.1	{
336	pcg	1.6	int fd;
337	pcg	1.1
338	pcg	1.7	if (utmp_pos <= 0 \|\| (fd = open (RXVT_UTMP_FILE, O_WRONLY)) == -1)
339	pcg	1.6	return 0;
340	pcg	1.1
341	pcg	1.7	if (lseek (fd, (off_t) (utmp_pos * sizeof (struct utmp)), SEEK_SET) != -1)
342			write (fd, wu, sizeof (struct utmp));
343			close (fd);
344	pcg	1.6	return 1;
345	pcg	1.1	}
346			#endif
347
348			/* ------------------------------------------------------------------------- */
349			/*
350			* Update a BSD style wtmp entry
351			*/
352	root	1.16	#if defined(WTMP_SUPPORT) && !defined(HAVE_UPDWTMP) && defined(HAVE_STRUCT_UTMP)
353	pcg	1.1	void
354	pcg	1.7	rxvt_update_wtmp (const char fname, const struct utmp putmp)
355	pcg	1.1	{
356	pcg	1.6	int fd, gotlock, retry;
357			struct flock lck; /* fcntl locking scheme */
358			struct stat sbuf;
359
360	pcg	1.7	if ((fd = open (fname, O_WRONLY \| O_APPEND, 0)) < 0)
361	pcg	1.6	return;
362
363			lck.l_whence = SEEK_END; /* start lock at current eof */
364			lck.l_len = 0; /* end at ``largest possible eof'' */
365			lck.l_start = 0;
366			lck.l_type = F_WRLCK; /* we want a write lock */
367
368			/* attempt lock with F_SETLK; F_SETLKW would cause a deadlock! */
369			for (retry = 10, gotlock = 0; retry--;)
370	pcg	1.7	if (fcntl (fd, F_SETLK, &lck) != -1)
371	pcg	1.6	{
372			gotlock = 1;
373			break;
374			}
375			else if (errno != EAGAIN && errno != EACCES)
376			break;
377			if (!gotlock)
378			{ /* give it up */
379	pcg	1.7	close (fd);
380	pcg	1.6	return;
381			}
382	pcg	1.7	if (fstat (fd, &sbuf) == 0)
383			if (write (fd, putmp, sizeof (struct utmp)) != sizeof (struct utmp))
384			ftruncate (fd, sbuf.st_size); /* remove bad writes */
385	pcg	1.6
386			lck.l_type = F_UNLCK; /* unlocking the file */
387	pcg	1.7	fcntl (fd, F_SETLK, &lck);
388			close (fd);
389	pcg	1.1	}
390			#endif
391
392			/* ------------------------------------------------------------------------- */
393			#ifdef LASTLOG_SUPPORT
394			void
395	pcg	1.7	rxvt_update_lastlog (const char fname, const char pty, const char *host)
396	pcg	1.1	{
397			# ifdef HAVE_STRUCT_LASTLOGX
398	pcg	1.6	struct lastlogx llx;
399	pcg	1.1	# endif
400			# ifdef HAVE_STRUCT_LASTLOG
401	pcg	1.6	int fd;
402			struct lastlog ll;
403	pcg	1.1	# ifdef LASTLOG_IS_DIR
404	pcg	1.6	char lastlogfile[256];
405	pcg	1.1	# endif
406	pcg	1.6	struct passwd *pwent;
407	pcg	1.1	# endif
408
409			# ifdef HAVE_STRUCT_LASTLOGX
410	root	1.11	memset (&llx, 0, sizeof (llx));
411	pcg	1.7	llx.ll_tv.tv_sec = time (NULL);
412	pcg	1.6	llx.ll_tv.tv_usec = 0;
413	root	1.11	strncpy (llx.ll_line, pty, sizeof (llx.ll_line));
414			strncpy (llx.ll_host, host, sizeof (llx.ll_host));
415	pcg	1.7	updlastlogx (RXVT_LASTLOGX_FILE, getuid (), &llx);
416	pcg	1.1	# endif
417
418			# ifdef HAVE_STRUCT_LASTLOG
419	pcg	1.7	pwent = getpwuid (getuid ());
420	pcg	1.6	if (!pwent)
421			{
422	pcg	1.8	rxvt_warn ("no entry in password file, not updating lastlog.\n");
423	pcg	1.6	return;
424	pcg	1.1	}
425	pcg	1.8
426	root	1.11	memset (&ll, 0, sizeof (ll));
427	pcg	1.7	ll.ll_time = time (NULL);
428	root	1.11	strncpy (ll.ll_line, pty, sizeof (ll.ll_line));
429			strncpy (ll.ll_host, host, sizeof (ll.ll_host));
430	pcg	1.1	# ifdef LASTLOG_IS_DIR
431	pcg	1.7	sprintf (lastlogfile, "%.s/%.s",
432			sizeof (lastlogfile) - sizeof (pwent->pw_name) - 2, fname,
433			sizeof (pwent->pw_name),
434	pcg	1.6	(!pwent->pw_name \|\| pwent->pw_name[0] == '\0') ? "unknown"
435			: pwent->pw_name);
436	pcg	1.7	if ((fd = open (lastlogfile, O_WRONLY \| O_CREAT, 0644)) >= 0)
437	pcg	1.6	{
438	pcg	1.7	write (fd, &ll, sizeof (ll));
439			close (fd);
440	pcg	1.1	}
441			# else
442	pcg	1.7	if ((fd = open (fname, O_RDWR)) != -1)
443	pcg	1.6	{
444	pcg	1.7	if (lseek (fd, (off_t) ((long)pwent->pw_uid * sizeof (ll)),
445	pcg	1.6	SEEK_SET) != -1)
446	pcg	1.7	write (fd, &ll, sizeof (ll));
447			close (fd);
448	pcg	1.1	}
449			# endif /* LASTLOG_IS_DIR */
450			# endif /* HAVE_STRUCT_LASTLOG */
451			}
452			#endif /* LASTLOG_SUPPORT */
453			/* ------------------------------------------------------------------------- */
454
455			#endif /* UTMP_SUPPORT */