1 /* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If not,
17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
28 void logwtmp (const char *line, const char *name, const char *host)
35 /* Set information in new entry. */
36 memset (&ut, 0, sizeof (ut));
38 ut.ut_pid = getpid ();
41 ut.ut_type = name[0] ? USER_PROCESS : DEAD_PROCESS;
43 strncpy (ut.ut_line, line, sizeof ut.ut_line);
44 strncpy (ut.ut_name, name, sizeof ut.ut_name);
46 strncpy (ut.ut_host, host, sizeof ut.ut_host);
50 __gettimeofday (&ut.ut_tv, NULL);
55 /* updwtmp (_PATH_WTMP, &ut); */
58 if ((ut_fd = open(_PATH_WTMP, O_APPEND | O_WRONLY)) >= 0) {
59 /* Lock the utmp file before updating */
60 lock.l_type = F_WRLCK;
61 lock.l_whence = SEEK_SET;
64 if (fcntl(ut_fd, F_SETLK, &lock) >= 0) {
65 write(ut_fd, (void *) &ut, sizeof(ut));
66 /* Now unlock the utmp file */
67 lock.l_type = F_UNLCK;