1/* Test that initgroups works.
2 Copyright (C) 2020-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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 <https://www.gnu.org/licenses/>. */
18
19#include <nss.h>
20#include <stdio.h>
21#include <stdlib.h>
22#include <string.h>
23#include <sys/types.h>
24#include <errno.h>
25#include <unistd.h>
26#include <grp.h>
27
28#include <support/support.h>
29#include <support/check.h>
30
31/* Test that initgroups includes secondary groups.
32 https://bugzilla.redhat.com/show_bug.cgi?id=1906066 */
33
34/* This version uses the wrapper around the groups module. */
35
36#define EXPECTED_N_GROUPS 4
37static gid_t expected_groups[] =
38 { 20, 30, 50, 51 };
39
40static int
41do_test (void)
42{
43 gid_t mygroups [50];
44 int i, n;
45
46 n = 50;
47 getgrouplist (user: "dj", group: 20, groups: mygroups, ngroups: &n);
48
49 TEST_COMPARE (n, EXPECTED_N_GROUPS);
50 for (i=0; i<n; i++)
51 TEST_COMPARE (mygroups[i], expected_groups[i]);
52
53 return 0;
54}
55
56#include <support/test-driver.c>
57

source code of glibc/grp/tst-initgroups1.c