1/*-
2 * Copyright (c) 2006 nCircle Network Security, Inc.
3 * Copyright (c) 2007 Robert N. M. Watson
4 * All rights reserved.
5 *
6 * This software was developed by Robert N. M. Watson for the TrustedBSD
7 * Project under contract to nCircle Network Security, Inc.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR, NCIRCLE NETWORK SECURITY,
22 * INC., OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
24 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
25 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
26 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 * $FreeBSD$
31 */
32
33/*
34 * Test setting a kernel environment variable, then try to unset it.
35 */
36
37#include <sys/types.h>
38
39#include <err.h>
40#include <errno.h>
41#include <kenv.h>
42#include <string.h>
43#include <unistd.h>
44
45#include "main.h"
46
47int
48priv_kenv_unset_setup(int asroot, int injail, struct test *test)
49{
50
51	if (kenv(KENV_SET, KENV_VAR_NAME, KENV_VAR_VALUE, KENV_VAR_LEN) < 0) {
52		warn("priv_kenv_unset: kenv");
53		return (-1);
54	}
55	return (0);
56}
57
58void
59priv_kenv_unset(int asroot, int injail, struct test *test)
60{
61	int error;
62
63	error = kenv(KENV_UNSET, KENV_VAR_NAME, NULL, 0);
64	if (asroot && injail)
65		expect("priv_kenv_unset(asroot, injail)", error, -1, EPERM);
66	if (asroot && !injail)
67		expect("priv_kenv_unset(asroot, !injail)", error, 0, 0);
68	if (!asroot && injail)
69		expect("priv_kenv_unset(!asroot, injail)", error, -1, EPERM);
70	if (!asroot && !injail)
71		expect("priv_kenv_unset(!asroot, !injail)", error, -1, EPERM);
72}
73
74void
75priv_kenv_unset_cleanup(int asroot, int injail, struct test *test)
76{
77
78	(void)kenv(KENV_UNSET, KENV_VAR_NAME, NULL, 0);
79}
80