1/* Copyright (C) 1996-2020 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}
39weak_alias (__setutent, setutent)
40
41
42int
43__getutent_r (struct utmp *buffer, struct utmp **result)
44{
45 int retval;
46
47 __libc_lock_lock (__libc_utmp_lock);
48
49 retval = __libc_getutent_r (buffer, result);
50
51 __libc_lock_unlock (__libc_utmp_lock);
52
53 return retval;
54}
55libc_hidden_def (__getutent_r)
56weak_alias (__getutent_r, getutent_r)
57
58
59struct utmp *
60__pututline (const struct utmp *data)
61{
62 struct utmp *buffer;
63
64 __libc_lock_lock (__libc_utmp_lock);
65
66 buffer = __libc_pututline (data);
67
68 __libc_lock_unlock (__libc_utmp_lock);
69
70 return buffer;
71}
72libc_hidden_def (__pututline)
73weak_alias (__pututline, pututline)
74
75
76void
77__endutent (void)
78{
79 __libc_lock_lock (__libc_utmp_lock);
80
81 __libc_endutent ();
82
83 __libc_lock_unlock (__libc_utmp_lock);
84}
85weak_alias (__endutent, endutent)
86