1 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 #include <errno.h>
19 #include <libc-lock.h>
20 #include <utmp.h>
21
22 #include "utmp-private.h"
23
24
25 /* We have to use the lock in getutent_r.c. */
__libc_lock_define(extern,__libc_utmp_lock attribute_hidden)26 __libc_lock_define (extern, __libc_utmp_lock attribute_hidden)
27
28
29 int
30 __getutline_r (const struct utmp *line, struct utmp *buffer,
31 struct utmp **result)
32 {
33 int retval;
34
35 __libc_lock_lock (__libc_utmp_lock);
36
37 retval = __libc_getutline_r (line, buffer, result);
38
39 __libc_lock_unlock (__libc_utmp_lock);
40
41 return retval;
42 }
43 libc_hidden_def (__getutline_r)
44 weak_alias (__getutline_r, getutline_r)
45