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/*-
* Copyright (c) 2005 Robert N. M. Watson
* 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 AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
#include <sys/types.h>
#include <sys/event.h>
#include <sys/filio.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
/*
* Regression test for piddling details of fifos.
*/
/*
* All activity occurs within a temporary directory created early in the
* test.
*/
char temp_dir[PATH_MAX];
static void __unused
atexit_temp_dir(void)
{
rmdir(temp_dir);
}
static void
makefifo(const char *fifoname, const char *testname)
{
if (mkfifo(fifoname, 0700) < 0)
err(-1, "%s: makefifo: mkfifo: %s", testname, fifoname);
}
static void
cleanfifo(const char *fifoname, int fd1, int fd2)
{
if (fd1 != -1)
close(fd1);
if (fd2 != -1)
close(fd2);
(void)unlink(fifoname);
}
static int
openfifo(const char *fifoname, const char *testname, int *reader_fdp,
int *writer_fdp)
{
int error, fd1, fd2;
fd1 = open(fifoname, O_RDONLY | O_NONBLOCK);
if (fd1 < 0)
return (-1);
fd2 = open(fifoname, O_WRONLY | O_NONBLOCK);
if (fd2 < 0) {
error = errno;
close(fd1);
errno = error;
return (-1);
}
*reader_fdp = fd1;
*writer_fdp = fd2;
return (0);
}
/*
* POSIX does not allow lseek(2) on fifos, so we expect ESPIPE as a result.
*/
static void
test_lseek(void)
{
int reader_fd, writer_fd;
makefifo("testfifo", __func__);
if (openfifo("testfifo", __func__, &reader_fd, &writer_fd) < 0) {
warn("%s: openfifo", __func__);
cleanfifo("testfifo", -1, -1);
exit(-1);
}
if (lseek(reader_fd, SEEK_CUR, 1) >= 0) {
warnx("%s: lseek succeeded instead of returning ESPIPE",
__func__);
cleanfifo("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (errno != ESPIPE) {
warn("%s: lseek returned instead of ESPIPE", __func__);
cleanfifo("testfifo", reader_fd, writer_fd);
exit(-1);
}
cleanfifo("testfifo", reader_fd, writer_fd);
}
/*
* truncate(2) on FIFO should silently return success.
*/
static void
test_truncate(void)
{
makefifo("testfifo", __func__);
if (truncate("testfifo", 1024) != 0) {
warn("%s: truncate", __func__);
cleanfifo("testfifo", -1, -1);
exit(-1);
}
cleanfifo("testfifo", -1, -1);
}
static int
test_ioctl_setclearflag(int fd, int flag, const char *testname,
const char *fdname, const char *flagname)
{
int i;
i = 1;
if (ioctl(fd, flag, &i) < 0) {
warn("%s:%s: ioctl(%s, %s, 1)", testname, __func__, fdname,
flagname);
cleanfifo("testfifo", -1, -1);
exit(-1);
}
i = 0;
if (ioctl(fd, flag, &i) < 0) {
warn("%s:%s: ioctl(%s, %s, 0)", testname, __func__, fdname,
flagname);
cleanfifo("testfifo", -1, -1);
exit(-1);
}
return (0);
}
/*
* Test that various ioctls can be issued against the file descriptor. We
* don't currently test the semantics of these changes here.
*/
static void
test_ioctl(void)
{
int reader_fd, writer_fd;
makefifo("testfifo", __func__);
if (openfifo("testfifo", __func__, &reader_fd, &writer_fd) < 0) {
warn("%s: openfifo", __func__);
cleanfifo("testfifo", -1, -1);
exit(-1);
}
/*
* Set and remove the non-blocking I/O flag.
*/
if (test_ioctl_setclearflag(reader_fd, FIONBIO, __func__,
"reader_fd", "FIONBIO") < 0) {
cleanfifo("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (test_ioctl_setclearflag(writer_fd, FIONBIO, __func__,
"writer_fd", "FIONBIO") < 0) {
cleanfifo("testfifo", reader_fd, writer_fd);
exit(-1);
}
/*
* Set and remove the async I/O flag.
*/
if (test_ioctl_setclearflag(reader_fd, FIOASYNC, __func__,
"reader_fd", "FIOASYNC") < 0) {
cleanfifo("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (test_ioctl_setclearflag(writer_fd, FIOASYNC, __func__,
"writer_fd", "FIONASYNC") < 0) {
cleanfifo("testfifo", reader_fd, writer_fd);
exit(-1);
}
cleanfifo("testfifo", reader_fd, writer_fd);
}
int
main(int argc, char *argv[])
{
strcpy(temp_dir, "/tmp/fifo_misc.XXXXXXXXXXX");
if (mkdtemp(temp_dir) == NULL)
err(-1, "mkdtemp");
atexit(atexit_temp_dir);
if (chdir(temp_dir) < 0)
err(-1, "chdir %s", temp_dir);
test_lseek();
test_truncate();
test_ioctl();
return (0);
}
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