1 /*
2 * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
3 * Copyright (c) 2017 Cyril Hrubis <chrubis@suse.cz>
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it would be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12 *
13 * Further, this software is distributed without any warranty that it is
14 * free of the rightful claim of any third person regarding infringement
15 * or the like. Any license provided herein, whether implied or
16 * otherwise, applies only to this software file. Patent licenses, if
17 * any, provided herein do not apply to combinations of this program with
18 * other software, or any other product whatsoever.
19 *
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, write the Free Software Foundation, Inc.,
22 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 *
24 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
25 * Mountain View, CA 94043, or:
26 *
27 * http://www.sgi.com
28 *
29 * For further information regarding this notice, see:
30 *
31 * http://oss.sgi.com/projects/GenInfo/NoticeExplan/
32 *
33 */
34 /*
35 * Basic test for fcntl(2) using F_DUPFD argument.
36 */
37
38 #include <sys/types.h>
39 #include <sys/stat.h>
40 #include <fcntl.h>
41 #include <unistd.h>
42 #include <errno.h>
43 #include <stdio.h>
44
45 #include "tst_test.h"
46
47 static int fd;
48 static char fname[256];
49
50 static const int min_fds[] = {0, 1, 2, 3, 10, 100};
51
verify_fcntl(unsigned int n)52 static void verify_fcntl(unsigned int n)
53 {
54 int min_fd = min_fds[n];
55
56 TEST(fcntl(fd, F_DUPFD, min_fd));
57
58 if (TEST_RETURN == -1) {
59 tst_res(TFAIL | TTERRNO, "fcntl(%s, F_DUPFD, %i) failed",
60 fname, min_fd);
61 return;
62 }
63
64 if (TEST_RETURN < min_fd) {
65 tst_res(TFAIL, "fcntl(%s, F_DUPFD, %i) returned %ld < %i",
66 fname, min_fd, TEST_RETURN, min_fd);
67 }
68
69 tst_res(TPASS, "fcntl(%s, F_DUPFD, %i) returned %ld",
70 fname, min_fd, TEST_RETURN);
71
72 SAFE_CLOSE(TEST_RETURN);
73 }
74
setup(void)75 static void setup(void)
76 {
77 sprintf(fname, "fcntl02_%d", getpid());
78 fd = SAFE_OPEN(fname, O_RDWR | O_CREAT, 0700);
79 }
80
cleanup(void)81 static void cleanup(void)
82 {
83 if (fd > 0)
84 SAFE_CLOSE(fd);
85 }
86
87 static struct tst_test test = {
88 .tid = "fcntl02",
89 .needs_tmpdir = 1,
90 .test = verify_fcntl,
91 .tcnt = ARRAY_SIZE(min_fds),
92 .setup = setup,
93 .cleanup = cleanup,
94 };
95