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/* $OpenBSD: t_getitimer.c,v 1.4 2021/12/13 16:56:48 deraadt Exp $ */
/* $NetBSD: t_getitimer.c,v 1.3 2019/07/13 12:44:02 gson 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/time.h>
#include "atf-c.h"
#include <errno.h>
#include <limits.h>
#include <signal.h>
#include <string.h>
#include <unistd.h>
static bool fail;
static void sighandler(int);
static void
sighandler(int signo)
{
if (signo == SIGALRM || signo == SIGVTALRM)
fail = false;
}
ATF_TC(getitimer_empty);
ATF_TC_HEAD(getitimer_empty, tc)
{
atf_tc_set_md_var(tc, "descr", "getitimer(2) before setitimer(2)");
}
ATF_TC_BODY(getitimer_empty, tc)
{
struct itimerval it;
/*
* Verify that the passed structure remains
* empty after calling getitimer(2) but before
* actually arming the timer with setitimer(2).
*/
(void)memset(&it, 0, sizeof(struct itimerval));
ATF_REQUIRE(getitimer(ITIMER_REAL, &it) == 0);
if (it.it_value.tv_sec != 0 || it.it_value.tv_usec != 0)
goto fail;
ATF_REQUIRE(getitimer(ITIMER_VIRTUAL, &it) == 0);
if (it.it_value.tv_sec != 0 || it.it_value.tv_usec != 0)
goto fail;
ATF_REQUIRE(getitimer(ITIMER_PROF, &it) == 0);
if (it.it_value.tv_sec != 0 || it.it_value.tv_usec != 0)
goto fail;
return;
fail:
atf_tc_fail("getitimer(2) modfied the timer before it was armed");
}
ATF_TC(getitimer_err);
ATF_TC_HEAD(getitimer_err, tc)
{
atf_tc_set_md_var(tc, "descr", "Test errors from getitimer(2)");
}
ATF_TC_BODY(getitimer_err, tc)
{
struct itimerval it;
errno = 0;
ATF_REQUIRE_ERRNO(EINVAL, getitimer(-1, &it) == -1);
errno = 0;
ATF_REQUIRE_ERRNO(EINVAL, getitimer(INT_MAX, &it) == -1);
errno = 0;
ATF_REQUIRE_ERRNO(EFAULT, getitimer(ITIMER_REAL, (void *)-1) == -1);
}
ATF_TC(setitimer_basic);
ATF_TC_HEAD(setitimer_basic, tc)
{
atf_tc_set_md_var(tc, "descr", "A basic test of setitimer(2)");
}
ATF_TC_BODY(setitimer_basic, tc)
{
struct itimerval it;
it.it_value.tv_sec = 0;
it.it_value.tv_usec = 100;
it.it_interval.tv_sec = 0;
it.it_interval.tv_usec = 0;
fail = true;
ATF_REQUIRE(signal(SIGALRM, sighandler) != SIG_ERR);
ATF_REQUIRE(setitimer(ITIMER_REAL, &it, NULL) == 0);
/*
* Although the interaction between
* setitimer(2) and sleep(3) can be
* unspecified, it is assumed that one
* second suspension will be enough for
* the timer to fire.
*/
(void)sleep(1);
if (fail != false)
atf_tc_fail("timer did not fire");
}
ATF_TC(setitimer_err);
ATF_TC_HEAD(setitimer_err, tc)
{
atf_tc_set_md_var(tc, "descr", "Test errors from setitimer(2)"
" (PR standards/44927)");
}
ATF_TC_BODY(setitimer_err, tc)
{
struct itimerval it, ot;
errno = 0;
ATF_REQUIRE_ERRNO(EINVAL, setitimer(-1, &it, &ot) == -1);
errno = 0;
ATF_REQUIRE_ERRNO(EINVAL, setitimer(INT_MAX, &it, &ot) == -1);
errno = 0;
ATF_REQUIRE_ERRNO(EFAULT, setitimer(ITIMER_REAL,(void*)-1, &ot) == -1);
}
ATF_TC(setitimer_old);
ATF_TC_HEAD(setitimer_old, tc)
{
atf_tc_set_md_var(tc, "descr", "Test old values from setitimer(2)");
}
ATF_TC_BODY(setitimer_old, tc)
{
struct itimerval it, ot;
/*
* Make two calls; the second one should store the old
* timer value which should be the same as that set in
* the first call, or slightly less due to time passing
* between the two calls.
*/
it.it_value.tv_sec = 4;
it.it_value.tv_usec = 999999;
it.it_interval.tv_sec = 0;
it.it_interval.tv_usec = 0;
ATF_REQUIRE(setitimer(ITIMER_REAL, &it, &ot) == 0);
it.it_value.tv_sec = 2;
it.it_value.tv_usec = 1;
it.it_interval.tv_sec = 0;
it.it_interval.tv_usec = 0;
ATF_REQUIRE(setitimer(ITIMER_REAL, &it, &ot) == 0);
/* Check seconds only as microseconds may have decremented */
if (ot.it_value.tv_sec != 4)
atf_tc_fail("setitimer(2) did not store old values");
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, getitimer_empty);
ATF_TP_ADD_TC(tp, getitimer_err);
ATF_TP_ADD_TC(tp, setitimer_basic);
ATF_TP_ADD_TC(tp, setitimer_err);
ATF_TP_ADD_TC(tp, setitimer_old);
return atf_no_error();
}
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