1 | /* Copyright (C) 1996-2019 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 | <http://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 | |
30 | void |
31 | __setutent (void) |
32 | { |
33 | __libc_lock_lock (__libc_utmp_lock); |
34 | |
35 | __libc_setutent (); |
36 | |
37 | __libc_lock_unlock (__libc_utmp_lock); |
38 | } |
39 | weak_alias (__setutent, setutent) |
40 | |
41 | |
42 | int |
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 | } |
55 | libc_hidden_def (__getutent_r) |
56 | weak_alias (__getutent_r, getutent_r) |
57 | |
58 | |
59 | struct 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 | } |
72 | libc_hidden_def (__pututline) |
73 | weak_alias (__pututline, pututline) |
74 | |
75 | |
76 | void |
77 | __endutent (void) |
78 | { |
79 | __libc_lock_lock (__libc_utmp_lock); |
80 | |
81 | __libc_endutent (); |
82 | |
83 | __libc_lock_unlock (__libc_utmp_lock); |
84 | } |
85 | weak_alias (__endutent, endutent) |
86 | |