priv_adjtime.c revision 162271 
185213Sdarrenr/*-
285213Sdarrenr * Copyright (c) 2006 nCircle Network Security, Inc.
385310Sru * All rights reserved.
485213Sdarrenr *
585213Sdarrenr * This software was developed by Robert N. M. Watson for the TrustedBSD
685213Sdarrenr * Project under contract to nCircle Network Security, Inc.
785213Sdarrenr *
888055Sru * Redistribution and use in source and binary forms, with or without
988055Sru * modification, are permitted provided that the following conditions
1085213Sdarrenr * are met:
1185213Sdarrenr * 1. Redistributions of source code must retain the above copyright
1285213Sdarrenr *    notice, this list of conditions and the following disclaimer.
1385213Sdarrenr * 2. Redistributions in binary form must reproduce the above copyright
1485213Sdarrenr *    notice, this list of conditions and the following disclaimer in the
1585213Sdarrenr *    documentation and/or other materials provided with the distribution.
1685213Sdarrenr *
1785213Sdarrenr * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1885213Sdarrenr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1985213Sdarrenr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2085213Sdarrenr * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR, NCIRCLE NETWORK SECURITY,
2185213Sdarrenr * INC., OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
2285213Sdarrenr * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
2385213Sdarrenr * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
2485213Sdarrenr * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
2585213Sdarrenr * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
2688055Sru * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
2785213Sdarrenr * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
2885213Sdarrenr *
29 * $FreeBSD: head/tools/regression/priv/priv_adjtime.c 162271 2006-09-13 09:05:39Z rwatson $
30 */
31
32/*
33 * Confirm that privilege is required to invoke adjtime(); first query, then
34 * try setting first with, and then without privilege.
35 */
36
37#include <sys/time.h>
38
39#include <err.h>
40#include <errno.h>
41#include <unistd.h>
42
43#include "main.h"
44
45void
46priv_adjtime(void)
47{
48	struct timeval tv;
49	int error;
50
51	assert_root();
52
53	/*
54	 * Query time adjustment.
55	 */
56	if (adjtime(NULL, &tv) < 0)
57		err(-1, "adjtime");
58
59	/*
60	 * Set with privilege.
61	 */
62	if (adjtime(&tv, NULL) < 0)
63		err(-1, "adjtime as root");
64
65	/*
66	 * Set without privilege.
67	 */
68	set_euid(UID_OTHER);
69
70	error = adjtime(&tv, NULL);
71	if (error == 0)
72		errx(-1, "adjtime succeeded as !root");
73	if (errno != EPERM)
74		errx(-1, "adjtime wrong errno %d as !root", errno);
75}
76