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[glibc.git] / login / logwtmp.c
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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. */
20 #include <string.h>
21 #include <sys/time.h>
22 #include <time.h>
23 #include <unistd.h>
24 #include <utmp.h>
27 void
28 logwtmp (const char *line, const char *name, const char *host)
30 struct utmp ut;
32 /* Set information in new entry. */
33 memset (&ut, 0, sizeof (ut));
34 #if _HAVE_UT_PID - 0
35 ut.ut_pid = getpid ();
36 #endif
37 #if _HAVE_UT_TYPE - 0
38 ut.ut_type = name[0] ? USER_PROCESS : DEAD_PROCESS;
39 #endif
40 strncpy (ut.ut_line, line, sizeof ut.ut_line);
41 strncpy (ut.ut_name, name, sizeof ut.ut_name);
42 #if _HAVE_UT_HOST - 0
43 strncpy (ut.ut_host, host, sizeof ut.ut_host);
44 #endif
46 #if _HAVE_UT_TV - 0
47 __gettimeofday (&ut.ut_tv, NULL);
48 #else
49 time (&ut.ut_time);
50 #endif
52 updwtmp (_PATH_WTMP, &ut);