1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) Red Hat Inc., 2007
4 */
5
6 /*
7 * NAME
8 * posix_fadvise02.c
9 *
10 * DESCRIPTION
11 * Check the value that posix_fadvise returns for wrong file descriptor.
12 *
13 * USAGE
14 * posix_fadvise02
15 *
16 * HISTORY
17 * 11/2007 Initial version by Masatake YAMATO <yamato@redhat.com>
18 *
19 * RESTRICTIONS
20 * None
21 */
22
23 #include <fcntl.h>
24 #include <unistd.h>
25 #include <signal.h>
26 #include <errno.h>
27 #include <string.h>
28
29 #include "tst_test.h"
30 #include "lapi/syscalls.h"
31
32 #define WRONG_FD 42 /* The number has no meaning.
33 Just used as something wrong fd */
34
35 int defined_advise[] = {
36 POSIX_FADV_NORMAL,
37 POSIX_FADV_SEQUENTIAL,
38 POSIX_FADV_RANDOM,
39 POSIX_FADV_NOREUSE,
40 POSIX_FADV_WILLNEED,
41 POSIX_FADV_DONTNEED,
42 };
43
verify_fadvise(unsigned int n)44 static void verify_fadvise(unsigned int n)
45 {
46 TEST(posix_fadvise
47 (WRONG_FD, 0, 0, defined_advise[n]));
48
49 if (TST_RET == 0) {
50 tst_res(TFAIL, "call succeeded unexpectedly");
51 return;
52 }
53
54 /* Man page says:
55 "On error, an error number is returned." */
56 if (TST_RET == EBADF) {
57 tst_res(TPASS, "expected failure - "
58 "returned value = %ld : %s",
59 TST_RET, tst_strerrno(TST_RET));
60 } else {
61 tst_res(TFAIL,
62 "unexpected returnd value - %ld : %s - "
63 "expected %d", TST_RET,
64 tst_strerrno(TST_RET), EBADF);
65 }
66 }
67
setup(void)68 static void setup(void)
69 {
70 /* Make WRONG_FD really wrong. */
71 retry:
72 errno = 0;
73 if (close(WRONG_FD) != 0) {
74 if (errno == EBADF) {} /* Good. Do nothing. */
75 if (errno == EINTR)
76 goto retry;
77 else if (errno == EIO)
78 tst_brk(TBROK,
79 "Unable to close a file descriptor(%d): %s\n",
80 WRONG_FD, tst_strerrno(EIO));
81 }
82 }
83
84 static struct tst_test test = {
85 .setup = setup,
86 .test = verify_fadvise,
87 .tcnt = ARRAY_SIZE(defined_advise),
88 };
89