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/* $OpenBSD: t_gettimeofday.c,v 1.4 2021/09/27 14:07:44 mbuhl Exp $ */
/* $NetBSD: t_gettimeofday.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $ */
/*-
* Copyright (c) 2011 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jukka Ruohonen.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "macros.h"
#include <sys/cdefs.h>
__RCSID("$NetBSD: t_gettimeofday.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $");
#include <sys/time.h>
#include "atf-c.h"
#include <errno.h>
#include <string.h>
#ifdef __OpenBSD__
static void sighandler(int);
static void
sighandler(int signo)
{
_exit(0);
}
#endif
ATF_TC(gettimeofday_err);
ATF_TC_HEAD(gettimeofday_err, tc)
{
atf_tc_set_md_var(tc, "descr", "Test errors from gettimeofday(2)");
}
ATF_TC_BODY(gettimeofday_err, tc)
{
#ifdef __OpenBSD__
/*
* With userland timecounters we will generate SIGSEGV instead
* of failing with errno set to EFAULT. POSIX explicitly
* allows this behaviour.
*/
ATF_REQUIRE(signal(SIGSEGV, sighandler) != SIG_ERR);
/* On sparc64 dereferencing -1 causes SIGBUS */
ATF_REQUIRE(signal(SIGBUS, sighandler) != SIG_ERR);
#endif
errno = 0;
ATF_REQUIRE_ERRNO(EFAULT, gettimeofday((void *)-1, NULL) != 0);
}
ATF_TC(gettimeofday_mono);
ATF_TC_HEAD(gettimeofday_mono, tc)
{
atf_tc_set_md_var(tc, "descr", "Test monotonicity of gettimeofday(2)");
}
ATF_TC_BODY(gettimeofday_mono, tc)
{
static const size_t maxiter = 100;
struct timeval tv1, tv2;
size_t i;
for (i = 0; i < maxiter; i++) {
(void)memset(&tv1, 0, sizeof(struct timeval));
(void)memset(&tv2, 0, sizeof(struct timeval));
ATF_REQUIRE(gettimeofday(&tv1, NULL) == 0);
ATF_REQUIRE(gettimeofday(&tv2, NULL) == 0);
if (timercmp(&tv2, &tv1, <) != 0)
atf_tc_fail("time went backwards");
}
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, gettimeofday_err);
ATF_TP_ADD_TC(tp, gettimeofday_mono);
return atf_no_error();
}
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