1 /* $NetBSD: t_gettimeofday.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $ */
2
3 /*-
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jukka Ruohonen.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31 #include <sys/cdefs.h>
32 __RCSID("$NetBSD: t_gettimeofday.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $");
33
34 #include <sys/time.h>
35
36 #include <atf-c.h>
37 #include <errno.h>
38 #include <string.h>
39
40 ATF_TC(gettimeofday_err);
ATF_TC_HEAD(gettimeofday_err,tc)41 ATF_TC_HEAD(gettimeofday_err, tc)
42 {
43 atf_tc_set_md_var(tc, "descr", "Test errors from gettimeofday(2)");
44 }
45
ATF_TC_BODY(gettimeofday_err,tc)46 ATF_TC_BODY(gettimeofday_err, tc)
47 {
48
49 #ifdef __NetBSD__
50 errno = 0;
51
52 ATF_REQUIRE_ERRNO(EFAULT, gettimeofday((void *)-1, NULL) != 0);
53 #endif
54 }
55
56 ATF_TC(gettimeofday_mono);
ATF_TC_HEAD(gettimeofday_mono,tc)57 ATF_TC_HEAD(gettimeofday_mono, tc)
58 {
59 atf_tc_set_md_var(tc, "descr", "Test monotonicity of gettimeofday(2)");
60 }
61
ATF_TC_BODY(gettimeofday_mono,tc)62 ATF_TC_BODY(gettimeofday_mono, tc)
63 {
64 static const size_t maxiter = 100;
65 struct timeval tv1, tv2;
66 size_t i;
67
68 for (i = 0; i < maxiter; i++) {
69
70 (void)memset(&tv1, 0, sizeof(struct timeval));
71 (void)memset(&tv2, 0, sizeof(struct timeval));
72
73 ATF_REQUIRE(gettimeofday(&tv1, NULL) == 0);
74 ATF_REQUIRE(gettimeofday(&tv2, NULL) == 0);
75
76 if (timercmp(&tv2, &tv1, <) != 0)
77 atf_tc_fail("time went backwards");
78 }
79 }
80
ATF_TP_ADD_TCS(tp)81 ATF_TP_ADD_TCS(tp)
82 {
83
84 ATF_TP_ADD_TC(tp, gettimeofday_err);
85 ATF_TP_ADD_TC(tp, gettimeofday_mono);
86
87 return atf_no_error();
88 }
89