/* $NetBSD: t_pipe.c,v 1.2 2017/01/13 21:30:41 christos Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Luke Mewburn and Jaromir Dolecek.
*
* 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>
__COPYRIGHT("@(#) Copyright (c) 2008\
The NetBSD Foundation, inc. All rights reserved.");
__RCSID("$NetBSD: t_pipe.c,v 1.2 2017/01/13 21:30:41 christos Exp $");
#include <sys/event.h>
#include <sys/wait.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <atf-c.h>
#include "h_macros.h"
ATF_TC(pipe1);
ATF_TC_HEAD(pipe1, tc)
{
atf_tc_set_md_var(tc, "descr",
"Checks EVFILT_WRITE for pipes. This test used to trigger "
"problem fixed in rev. 1.5.2.7 of sys/kern/sys_pipe.c");
}
ATF_TC_BODY(pipe1, tc)
{
struct kevent event[1];
int fds[2];
int kq, n;
RL(pipe(fds));
RL(kq = kqueue());
RL(close(fds[0]));
EV_SET(&event[0], fds[1], EVFILT_WRITE, EV_ADD|EV_ENABLE, 0, 0, 0);
ATF_REQUIRE_EQ_MSG((n = kevent(kq, event, 1, NULL, 0, NULL)),
-1, "got: %d", n);
ATF_REQUIRE_EQ_MSG(errno, EBADF, "got: %s", strerror(errno));
}
ATF_TC(pipe2);
ATF_TC_HEAD(pipe2, tc)
{
atf_tc_set_md_var(tc, "descr",
"Checks EVFILT_WRITE for pipes. This test used to trigger problem "
"fixed in rev. 1.5.2.9 of sys/kern/sys_pipe.c");
}
ATF_TC_BODY(pipe2, tc)
{
struct kevent event[1];
char buffer[128];
int fds[2];
int kq, n;
int status;
pid_t child;
RL(pipe(fds));
RL(kq = kqueue());
EV_SET(&event[0], fds[1], EVFILT_WRITE, EV_ADD|EV_ENABLE, 0, 0, 0);
RL(kevent(kq, event, 1, NULL, 0, NULL));
/* spawn child reader */
RL(child = fork());
if (child == 0) {
int sz = read(fds[0], buffer, 128);
if (sz > 0)
(void)printf("pipe: child read '%.*s'\n", sz, buffer);
exit(sz <= 0);
}
RL(n = kevent(kq, NULL, 0, event, 1, NULL));
(void)printf("kevent num %d flags: %#x, fflags: %#x, data: "
"%" PRId64 "\n", n, event[0].flags, event[0].fflags, event[0].data);
RL(n = write(fds[1], "foo", 3));
RL(close(fds[1]));
(void)waitpid(child, &status, 0);
}
ATF_TC(pipe3);
ATF_TC_HEAD(pipe3, tc)
{
atf_tc_set_md_var(tc, "descr",
"Checks EVFILT_WRITE for pipes. This test used to trigger problem "
"fixed in rev. 1.5.2.10 of sys/kern/sys_pipe.c");
}
ATF_TC_BODY(pipe3, tc)
{
struct kevent event[1];
int fds[2];
int kq;
RL(pipe(fds));
RL(kq = kqueue());
EV_SET(&event[0], fds[1], EVFILT_WRITE, EV_ADD|EV_ENABLE, 0, 0, 0);
RL(kevent(kq, event, 1, NULL, 0, NULL));
/* close 'read' end first, then 'write' */
RL(close(fds[0]));
RL(close(fds[1]));
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, pipe1);
ATF_TP_ADD_TC(tp, pipe2);
ATF_TP_ADD_TC(tp, pipe3);
return atf_no_error();
}
