1 /* `group_member' -- test if process is in a given group.
2 Copyright (C) 1995, 1997, 2002, 2010 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 <sys/types.h>
25 #define NGROUPS_MAX 16 /* First guess. */
38 groups = __alloca (size * sizeof *groups);
39 n = __getgroups (size, groups);
42 while (n == size / 2);
50 weak_alias (__group_member, group_member)