xref: /freebsd/tests/sys/kern/pipe/pipe_ino_test.c (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c)
1 /*-
2  * Copyright (c) 2011 Giovanni Trematerra <giovanni.trematerra@gmail.com>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 /*
28  * Test conformance to stat(2) SUSv4 description:
29  *  "For all other file types defined in this volume of POSIX.1-2008, the
30  *  structure members st_mode, st_ino, st_dev, st_uid, st_gid, st_atim,
31  *  st_ctim, and st_mtim shall have meaningful values ...".
32  * Check that st_dev and st_ino are meaningful.
33  */
34 
35 #include <sys/types.h>
36 #include <sys/stat.h>
37 #include <err.h>
38 #include <stdio.h>
39 #include <unistd.h>
40 
41 int
42 main(void)
43 {
44 	int pipefd[2];
45 	struct stat st1, st2;
46 
47 	if (pipe(pipefd) == -1)
48 		err(1, "FAIL: pipe");
49 
50 	if (fstat(pipefd[0], &st1) == -1)
51 		err(1, "FAIL: fstat st1");
52 	if (fstat(pipefd[1], &st2) == -1)
53 		err(1, "FAIL: fstat st2");
54 	if (st1.st_dev != st2.st_dev || st1.st_dev == 0 || st2.st_dev == 0)
55 		errx(1, "FAIL: wrong dev number %ju %ju",
56 		    (uintmax_t)st1.st_dev, (uintmax_t)st2.st_dev);
57 	if (st1.st_ino == st2.st_ino)
58 		errx(1, "FAIL: inode numbers are equal: %ju",
59 		    (uintmax_t)st1.st_ino);
60 
61 	close(pipefd[0]);
62 	close(pipefd[1]);
63 	printf("PASS\n");
64 
65 	return (0);
66 }
67