1 /*
2 *
3 * Copyright (c) International Business Machines Corp., 2001
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
13 * the GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
20 /*
21 * DESCRIPTION
22 * Testcase to check open(2) sets errno to ENXIO correctly.
23 *
24 * ALGORITHM
25 * Create a named pipe using mknod(2). Attempt to
26 * open(2) the pipe for writing. The open(2) should
27 * fail with ENXIO.
28 */
29 #include <sys/types.h>
30 #include <sys/stat.h>
31 #include <fcntl.h>
32 #include <errno.h>
33 #include <unistd.h>
34 #include "test.h"
35
36 char *TCID = "open06";
37 int TST_TOTAL = 1;
38
39 static void setup(void);
40 static void cleanup(void);
41
42 static char fname[100] = "fifo";
43
main(int ac,char ** av)44 int main(int ac, char **av)
45 {
46 int lc;
47
48 tst_parse_opts(ac, av, NULL, NULL);
49
50 setup();
51
52 for (lc = 0; TEST_LOOPING(lc); lc++) {
53 tst_count = 0;
54
55 TEST(open(fname, O_NONBLOCK | O_WRONLY));
56 if (TEST_RETURN != -1) {
57 tst_resm(TFAIL, "open(2) succeeded unexpectedly");
58 continue;
59 }
60
61 if (TEST_ERRNO != ENXIO)
62 tst_resm(TFAIL, "Expected ENXIO got %d", TEST_ERRNO);
63 else
64 tst_resm(TPASS, "call returned expected ENXIO error");
65 }
66
67 cleanup();
68 tst_exit();
69 }
70
setup(void)71 static void setup(void)
72 {
73 tst_sig(NOFORK, DEF_HANDLER, cleanup);
74
75 TEST_PAUSE;
76
77 tst_tmpdir();
78
79 sprintf(fname, "%s.%d", fname, getpid());
80
81 if (mknod(fname, S_IFIFO | 0644, 0) == -1)
82 tst_brkm(TBROK, cleanup, "mknod FAILED");
83 }
84
cleanup(void)85 static void cleanup(void)
86 {
87 unlink(fname);
88
89 tst_rmdir();
90 }
91