1/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
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 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <errno.h>
20#include <string.h>
21#include <utmp.h>
22#include <time.h>
23#include <sys/time.h>
24#include <shlib-compat.h>
25
26int
27__logout (const char *line)
28{
29 struct utmp tmp, utbuf;
30 struct utmp *ut;
31 int result = 0;
32
33 /* Tell that we want to use the UTMP file. */
34 if (__utmpname (_PATH_UTMP) == -1)
35 return 0;
36
37 /* Open UTMP file. */
38 __setutent ();
39
40 /* Fill in search information. */
41 tmp.ut_type = USER_PROCESS;
42 strncpy (tmp.ut_line, line, sizeof tmp.ut_line);
43
44 /* Read the record. */
45 if (__getutline_r (&tmp, &utbuf, &ut) >= 0)
46 {
47 /* Clear information about who & from where. */
48 memset (ut->ut_name, '\0', sizeof ut->ut_name);
49 memset (ut->ut_host, '\0', sizeof ut->ut_host);
50
51 struct __timespec64 ts;
52 __clock_gettime64 (CLOCK_REALTIME, &ts);
53 TIMESPEC_TO_TIMEVAL (&ut->ut_tv, &ts);
54 ut->ut_type = DEAD_PROCESS;
55
56 if (__pututline (ut) != NULL)
57 result = 1;
58 }
59
60 /* Close UTMP file. */
61 __endutent ();
62
63 return result;
64}
65versioned_symbol (libc, __logout, logout, GLIBC_2_34);
66libc_hidden_ver (__logout, logout)
67
68#if OTHER_SHLIB_COMPAT (libutil, GLIBC_2_0, GLIBC_2_34)
69compat_symbol (libutil, __logout, logout, GLIBC_2_0);
70#endif
71