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/* $NetBSD: t_wait_noproc.c,v 1.5 2016/11/09 17:50:19 kamil Exp $ */
/*-
* Copyright (c) 2016 The NetBSD Foundation, Inc.
* All rights reserved.
*
* 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 <sys/cdefs.h>
__RCSID("$NetBSD: t_wait_noproc.c,v 1.5 2016/11/09 17:50:19 kamil Exp $");
#ifdef __FreeBSD__
#include <sys/param.h> /* For NBBY -- it's in sys/types.h on NetBSD */
#endif
#include <sys/wait.h>
#include <sys/resource.h>
#include <errno.h>
#include <stdio.h>
#include <atf-c.h>
#ifndef TWAIT_OPTION
#define TWAIT_OPTION 0
#endif
#if TWAIT_OPTION == 0
ATF_TC(wait);
ATF_TC_HEAD(wait, tc)
{
atf_tc_set_md_var(tc, "descr",
"Test that wait(2) returns ECHILD for no child");
}
ATF_TC_BODY(wait, tc)
{
ATF_REQUIRE_ERRNO(ECHILD, wait(NULL) == -1);
}
#endif
ATF_TC(waitpid);
ATF_TC_HEAD(waitpid, tc)
{
atf_tc_set_md_var(tc, "descr",
"Test that waitpid(2) returns ECHILD for WAIT_ANY and option %s",
___STRING(TWAIT_OPTION));
}
ATF_TC_BODY(waitpid, tc)
{
ATF_REQUIRE_ERRNO(ECHILD, waitpid(WAIT_ANY, NULL, TWAIT_OPTION) == -1);
}
ATF_TC(waitid);
ATF_TC_HEAD(waitid, tc)
{
atf_tc_set_md_var(tc, "descr",
"Test that waitid(2) returns ECHILD for P_ALL and option %s",
___STRING(TWAIT_OPTION));
}
ATF_TC_BODY(waitid, tc)
{
ATF_REQUIRE_ERRNO(ECHILD,
waitid(P_ALL, 0, NULL,
WTRAPPED | WEXITED | TWAIT_OPTION) == -1);
}
ATF_TC(wait3);
ATF_TC_HEAD(wait3, tc)
{
atf_tc_set_md_var(tc, "descr",
"Test that wait3(2) returns ECHILD for no child");
}
ATF_TC_BODY(wait3, tc)
{
ATF_REQUIRE_ERRNO(ECHILD, wait3(NULL, TWAIT_OPTION, NULL) == -1);
}
ATF_TC(wait4);
ATF_TC_HEAD(wait4, tc)
{
atf_tc_set_md_var(tc, "descr",
"Test that wait4(2) returns ECHILD for WAIT_ANY and option %s",
___STRING(TWAIT_OPTION));
}
ATF_TC_BODY(wait4, tc)
{
ATF_REQUIRE_ERRNO(ECHILD,
wait4(WAIT_ANY, NULL, TWAIT_OPTION, NULL) == -1);
}
ATF_TC(wait6);
ATF_TC_HEAD(wait6, tc)
{
atf_tc_set_md_var(tc, "descr",
"Test that wait6(2) returns ECHILD for P_ALL and option %s",
___STRING(TWAIT_OPTION));
}
ATF_TC_BODY(wait6, tc)
{
ATF_REQUIRE_ERRNO(ECHILD,
wait6(P_ALL, 0, NULL,
WTRAPPED | WEXITED | TWAIT_OPTION, NULL, NULL) == -1);
}
/*
* Generator of valid combinations of options
* Usage: i = 0; while ((o = get_options_wait6(i++)) != -1) {}
*/
static int
get_options6(size_t pos)
{
int rv = 0;
size_t n;
/*
* waitid(2) must specify at least one of WEXITED, WUNTRACED,
* WSTOPPED, WTRAPPED or WCONTINUED. Single option WNOWAIT
* isn't valid.
*/
const int matrix[] = {
WNOWAIT, /* First in order to blacklist it easily */
WEXITED,
WUNTRACED,
WSTOPPED, /* SUS compatibility, equal to WUNTRACED */
WTRAPPED,
WCONTINUED
};
const size_t M = (1 << __arraycount(matrix)) - 1;
/* Skip empty and sole WNOWAIT option */
pos+=2;
if (pos > M)
return -1;
for (n = 0; n < __arraycount(matrix); n++) {
if (pos & __BIT(n))
rv |= matrix[n];
}
return rv;
}
/*
* Generator of valid combinations of options
* Usage: i = 0; while ((o = get_options_wait4(i++)) != -1) {}
*/
static int
get_options4(size_t pos)
{
int rv = 0;
size_t n;
const int special[] = {
0,
#ifdef __NetBSD__
WALLSIG,
WALTSIG,
__WALL, /* Linux compatibility, equal to WALLSIG */
__WCLONE /* Linux compatibility, equal to WALTSIG */
#endif
};
const int matrix[] = {
WNOWAIT,
WEXITED,
WUNTRACED,
WSTOPPED, /* SUS compatibility, equal to WUNTRACED */
WTRAPPED,
WCONTINUED
};
const size_t M = (1 << __arraycount(special)) - 1;
if (pos < __arraycount(special))
return special[pos];
pos -= __arraycount(special);
++pos; /* Don't start with empty mask */
if (pos > M)
return -1;
for (n = 0; n < __arraycount(special); n++) {
if (pos & __BIT(n))
rv |= matrix[n];
}
return rv;
}
ATF_TC(waitpid_options);
ATF_TC_HEAD(waitpid_options, tc)
{
atf_tc_set_md_var(tc, "descr",
"Test that waitpid(2) returns ECHILD for WAIT_ANY and valid "
"combination of options with%s WNOHANG",
TWAIT_OPTION == 0 ? "out" : "");
}
ATF_TC_BODY(waitpid_options, tc)
{
size_t i = 0;
int o;
while((o = get_options4(i++)) != -1) {
printf("Testing waitpid(2) with options %x\n", o);
ATF_REQUIRE_ERRNO(ECHILD,
waitpid(WAIT_ANY, NULL, o | TWAIT_OPTION) == -1);
}
}
ATF_TC(waitid_options);
ATF_TC_HEAD(waitid_options, tc)
{
atf_tc_set_md_var(tc, "descr",
"Test that waitid(2) returns ECHILD for P_ALL and valid "
"combination of options with%s WNOHANG",
TWAIT_OPTION == 0 ? "out" : "");
}
ATF_TC_BODY(waitid_options, tc)
{
size_t i = 0;
int o;
while((o = get_options6(i++)) != -1) {
printf("Testing waitid(2) with options %x\n", o);
ATF_REQUIRE_ERRNO(ECHILD,
waitid(P_ALL, 0, NULL, o | TWAIT_OPTION) == -1);
}
}
ATF_TC(wait3_options);
ATF_TC_HEAD(wait3_options, tc)
{
atf_tc_set_md_var(tc, "descr",
"Test that wait3(2) returns ECHILD for no child");
}
ATF_TC_BODY(wait3_options, tc)
{
size_t i = 0;
int o;
while((o = get_options4(i++)) != -1) {
printf("Testing wait3(2) with options %x\n", o);
ATF_REQUIRE_ERRNO(ECHILD,
wait3(NULL, o | TWAIT_OPTION, NULL) == -1);
}
}
ATF_TC(wait4_options);
ATF_TC_HEAD(wait4_options, tc)
{
atf_tc_set_md_var(tc, "descr",
"Test that wait4(2) returns ECHILD for WAIT_ANY and option %s",
___STRING(TWAIT_OPTION));
}
ATF_TC_BODY(wait4_options, tc)
{
size_t i = 0;
int o;
while((o = get_options4(i++)) != -1) {
printf("Testing wait4(2) with options %x\n", o);
ATF_REQUIRE_ERRNO(ECHILD,
wait4(WAIT_ANY, NULL, o | TWAIT_OPTION, NULL) == -1);
}
}
ATF_TC(wait6_options);
ATF_TC_HEAD(wait6_options, tc)
{
atf_tc_set_md_var(tc, "descr",
"Test that wait6(2) returns ECHILD for P_ALL and option %s",
___STRING(TWAIT_OPTION));
}
ATF_TC_BODY(wait6_options, tc)
{
size_t i = 0;
int o;
while((o = get_options6(i++)) != -1) {
printf("Testing wait6(2) with options %x\n", o);
ATF_REQUIRE_ERRNO(ECHILD,
wait6(P_ALL, 0, NULL, o | TWAIT_OPTION, NULL, NULL) == -1);
}
}
ATF_TP_ADD_TCS(tp)
{
#if TWAIT_OPTION == 0
ATF_TP_ADD_TC(tp, wait);
#endif
ATF_TP_ADD_TC(tp, waitpid);
ATF_TP_ADD_TC(tp, waitid);
ATF_TP_ADD_TC(tp, wait3);
ATF_TP_ADD_TC(tp, wait4);
ATF_TP_ADD_TC(tp, wait6);
ATF_TP_ADD_TC(tp, waitpid_options);
ATF_TP_ADD_TC(tp, waitid_options);
ATF_TP_ADD_TC(tp, wait3_options);
ATF_TP_ADD_TC(tp, wait4_options);
ATF_TP_ADD_TC(tp, wait6_options);
return atf_no_error();
}
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