1/* Copyright (c) 2007 The NetBSD Foundation, Inc.
2 * All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
14 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
15 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
16 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
20 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
22 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
24 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  */
25
26#include "atf-c/detail/user.h"
27
28#include <sys/param.h>
29#include <sys/types.h>
30#include <limits.h>
31#include <unistd.h>
32
33#include "atf-c/detail/sanity.h"
34
35/* ---------------------------------------------------------------------
36 * Free functions.
37 * --------------------------------------------------------------------- */
38
39uid_t
40atf_user_euid(void)
41{
42    return geteuid();
43}
44
45bool
46atf_user_is_member_of_group(gid_t gid)
47{
48    static gid_t groups[NGROUPS_MAX];
49    static int ngroups = -1;
50    bool found;
51    int i;
52
53    if (ngroups == -1) {
54        ngroups = getgroups(NGROUPS_MAX, groups);
55        INV(ngroups >= 0);
56    }
57
58    found = false;
59    for (i = 0; !found && i < ngroups; i++)
60        if (groups[i] == gid)
61            found = true;
62    return found;
63}
64
65bool
66atf_user_is_root(void)
67{
68    return geteuid() == 0;
69}
70
71bool
72atf_user_is_unprivileged(void)
73{
74    return geteuid() != 0;
75}
76