xref: /freebsd/tests/sys/file/fcntlflags_test.c (revision e0c4386e)
1 /*-
2  * Copyright (c) 2013 Jilles Tjoelker
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 #include <sys/cdefs.h>
28 
29 #include <fcntl.h>
30 #include <stdio.h>
31 #include <unistd.h>
32 
33 /*
34  * O_ACCMODE is currently defined incorrectly. This is what it should be.
35  * Various code depends on the incorrect value.
36  */
37 #define CORRECT_O_ACCMODE (O_ACCMODE | O_EXEC)
38 
39 static int testnum;
40 
41 static void
42 subtests(const char *path, int omode, const char *omodetext)
43 {
44 	int fd, flags1, flags2, flags3;
45 
46 	fd = open(path, omode);
47 	if (fd == -1)
48 		printf("not ok %d - open(\"%s\", %s) failed\n",
49 		    testnum++, path, omodetext);
50 	else
51 		printf("ok %d - open(\"%s\", %s) succeeded\n",
52 		    testnum++, path, omodetext);
53 	flags1 = fcntl(fd, F_GETFL);
54 	if (flags1 == -1)
55 		printf("not ok %d - fcntl(F_GETFL) failed\n", testnum++);
56 	else if ((flags1 & CORRECT_O_ACCMODE) == omode)
57 		printf("ok %d - fcntl(F_GETFL) gave correct result\n",
58 		    testnum++);
59 	else
60 		printf("not ok %d - fcntl(F_GETFL) gave incorrect result "
61 		    "(%#x & %#x != %#x)\n",
62 		    testnum++, flags1, CORRECT_O_ACCMODE, omode);
63 	if (fcntl(fd, F_SETFL, flags1) == -1)
64 		printf("not ok %d - fcntl(F_SETFL) same flags failed\n",
65 		    testnum++);
66 	else
67 		printf("ok %d - fcntl(F_SETFL) same flags succeeded\n",
68 		    testnum++);
69 	flags2 = fcntl(fd, F_GETFL);
70 	if (flags2 == -1)
71 		printf("not ok %d - fcntl(F_GETFL) failed\n", testnum++);
72 	else if (flags2 == flags1)
73 		printf("ok %d - fcntl(F_GETFL) gave same result\n",
74 		    testnum++);
75 	else
76 		printf("not ok %d - fcntl(F_SETFL) caused fcntl(F_GETFL) to "
77 		    "change from %#x to %#x\n",
78 		    testnum++, flags1, flags2);
79 	if (fcntl(fd, F_SETFL, flags2 | O_NONBLOCK) == -1)
80 		printf("not ok %d - fcntl(F_SETFL) O_NONBLOCK failed\n",
81 		    testnum++);
82 	else
83 		printf("ok %d - fcntl(F_SETFL) O_NONBLOCK succeeded\n",
84 		    testnum++);
85 	flags3 = fcntl(fd, F_GETFL);
86 	if (flags3 == -1)
87 		printf("not ok %d - fcntl(F_GETFL) failed\n", testnum++);
88 	else if (flags3 == (flags2 | O_NONBLOCK))
89 		printf("ok %d - fcntl(F_GETFL) gave expected result\n",
90 		    testnum++);
91 	else
92 		printf("not ok %d - fcntl(F_SETFL) gave unexpected result "
93 		    "(%#x != %#x)\n",
94 		    testnum++, flags3, flags2 | O_NONBLOCK);
95 	(void)close(fd);
96 }
97 
98 int
99 main(int argc __unused, char **argv __unused)
100 {
101 	printf("1..24\n");
102 	testnum = 1;
103 	subtests("/dev/null", O_RDONLY, "O_RDONLY");
104 	subtests("/dev/null", O_WRONLY, "O_WRONLY");
105 	subtests("/dev/null", O_RDWR, "O_RDWR");
106 	subtests("/bin/sh", O_EXEC, "O_EXEC");
107 	return (0);
108 }
109