1 | /* Copyright (C) 1996-2017 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 | <http://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <stdlib.h> |
20 | #include <utmp.h> |
21 | |
22 | |
23 | /* Local buffer to store the result. */ |
24 | libc_freeres_ptr (static struct utmp *buffer); |
25 | |
26 | struct utmp * |
27 | __getutid (const struct utmp *id) |
28 | { |
29 | struct utmp *result; |
30 | |
31 | if (buffer == NULL) |
32 | { |
33 | buffer = (struct utmp *) malloc (sizeof (struct utmp)); |
34 | if (buffer == NULL) |
35 | return NULL; |
36 | } |
37 | if (__getutid_r (id, buffer, &result) < 0) |
38 | return NULL; |
39 | |
40 | return result; |
41 | } |
42 | weak_alias (__getutid, getutid) |
43 | |