Do not create invalid pointers in C code of string functions.
[glibc.git] / nptl / pthread_getattr_default_np.c
blobf8a1342564a853e6f85527acaee7e44405d49860
1 /* Get the default attributes used by pthread_create in the process.
2 Copyright (C) 2013-2015 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
19 #include <errno.h>
20 #include <stdlib.h>
21 #include <pthreadP.h>
22 #include <assert.h>
24 int
25 pthread_getattr_default_np (pthread_attr_t *out)
27 struct pthread_attr *real_out;
29 assert (sizeof (*out) >= sizeof (struct pthread_attr));
30 real_out = (struct pthread_attr *) out;
32 lll_lock (__default_pthread_attr_lock, LLL_PRIVATE);
33 *real_out = __default_pthread_attr;
34 lll_unlock (__default_pthread_attr_lock, LLL_PRIVATE);
36 return 0;