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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/tests/sys/kern/pipe/pipe_ino_test.c
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/*-

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 * Copyright (c) 2011 Giovanni Trematerra <[email protected]>

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 * All rights reserved.

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 *

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 * Redistribution and use in source and binary forms, with or without

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 * modification, are permitted provided that the following conditions

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 * are met:

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 * 1. Redistributions of source code must retain the above copyright

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 *    notice, this list of conditions and the following disclaimer.

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 * 2. Redistributions in binary form must reproduce the above copyright

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 *    notice, this list of conditions and the following disclaimer in the

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 *    documentation and/or other materials provided with the distribution.

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 *

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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND

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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

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 * SUCH DAMAGE.

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 */

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/*

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 * Test conformance to stat(2) SUSv4 description:

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 *  "For all other file types defined in this volume of POSIX.1-2008, the

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 *  structure members st_mode, st_ino, st_dev, st_uid, st_gid, st_atim,

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 *  st_ctim, and st_mtim shall have meaningful values ...".

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 * Check that st_dev and st_ino are meaningful.

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 */

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#include <sys/types.h>

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#include <sys/stat.h>

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#include <err.h>

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#include <stdio.h>

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#include <unistd.h>

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int

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main(void)

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{

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	int pipefd[2];

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	struct stat st1, st2;

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	if (pipe(pipefd) == -1)

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		err(1, "FAIL: pipe");

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	if (fstat(pipefd[0], &st1) == -1)

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		err(1, "FAIL: fstat st1");

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	if (fstat(pipefd[1], &st2) == -1)

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		err(1, "FAIL: fstat st2");

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	if (st1.st_dev != st2.st_dev || st1.st_dev == 0 || st2.st_dev == 0)

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		errx(1, "FAIL: wrong dev number %ju %ju",

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		    (uintmax_t)st1.st_dev, (uintmax_t)st2.st_dev);

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	if (st1.st_ino == st2.st_ino)

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		errx(1, "FAIL: inode numbers are equal: %ju",

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		    (uintmax_t)st1.st_ino);

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	close(pipefd[0]);

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	close(pipefd[1]);

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	printf("PASS\n");

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	return (0);

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}

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