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>
4 and Paul Janzen <pcj@primenet.com>, 1996.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <https://www.gnu.org/licenses/>. */
19
20#include <libc-lock.h>
21#include <stdlib.h>
22#include <utmp.h>
23
24#include "utmp-private.h"
25
26/* We need to protect the opening of the file. */
27__libc_lock_define_initialized (, __libc_utmp_lock attribute_hidden)
28
29
30void
31__setutent (void)
32{
33 __libc_lock_lock (__libc_utmp_lock);
34
35 __libc_setutent ();
36
37 __libc_lock_unlock (__libc_utmp_lock);
38}
39libc_hidden_def (__setutent)
40weak_alias (__setutent, setutent)
41
42
43int
44__getutent_r (struct utmp *buffer, struct utmp **result)
45{
46 int retval;
47
48 __libc_lock_lock (__libc_utmp_lock);
49
50 retval = __libc_getutent_r (buffer, result);
51
52 __libc_lock_unlock (__libc_utmp_lock);
53
54 return retval;
55}
56libc_hidden_def (__getutent_r)
57weak_alias (__getutent_r, getutent_r)
58
59
60struct utmp *
61__pututline (const struct utmp *data)
62{
63 struct utmp *buffer;
64
65 __libc_lock_lock (__libc_utmp_lock);
66
67 buffer = __libc_pututline (data);
68
69 __libc_lock_unlock (__libc_utmp_lock);
70
71 return buffer;
72}
73libc_hidden_def (__pututline)
74weak_alias (__pututline, pututline)
75
76
77void
78__endutent (void)
79{
80 __libc_lock_lock (__libc_utmp_lock);
81
82 __libc_endutent ();
83
84 __libc_lock_unlock (__libc_utmp_lock);
85}
86libc_hidden_def (__endutent)
87weak_alias (__endutent, endutent)
88