1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) International Business Machines Corp., 2001
4 */
5
6 /*\
7 * [Description]
8 *
9 * Testcase to check if fstatfs() sets errno correctly.
10 */
11
12 #include <errno.h>
13 #include <stdlib.h>
14 #include <sys/types.h>
15 #include <sys/statfs.h>
16 #include <sys/wait.h>
17 #include "tst_test.h"
18 #include "tst_safe_macros.h"
19
20 static struct statfs buf;
21
22 static int fd;
23 static int bad_fd = -1;
24
25 static struct test_case_t {
26 int *fd;
27 struct statfs *sbuf;
28 int error;
29 } tests[] = {
30 {&bad_fd, &buf, EBADF},
31 {&fd, (void *)-1, EFAULT},
32 };
33
fstatfs_verify(unsigned int n)34 static void fstatfs_verify(unsigned int n)
35 {
36 int pid, status;
37
38 pid = SAFE_FORK();
39 if (!pid) {
40 TST_EXP_FAIL(fstatfs(*tests[n].fd, tests[n].sbuf), tests[n].error, "fstatfs()");
41 exit(0);
42 }
43
44 SAFE_WAITPID(pid, &status, 0);
45
46 if (WIFEXITED(status) && WEXITSTATUS(status) == 0)
47 return;
48
49 if (tests[n].error == EFAULT &&
50 WIFSIGNALED(status) && WTERMSIG(status) == SIGSEGV) {
51 tst_res(TPASS, "Got SIGSEGV instead of EFAULT");
52 return;
53 }
54
55 tst_res(TFAIL, "Child %s", tst_strstatus(status));
56 }
57
setup(void)58 static void setup(void)
59 {
60 fd = SAFE_OPEN("tempfile", O_RDWR | O_CREAT, 0700);
61 }
62
cleanup(void)63 static void cleanup(void)
64 {
65 if (fd > 0)
66 SAFE_CLOSE(fd);
67 }
68
69 static struct tst_test test = {
70 .test = fstatfs_verify,
71 .tcnt = ARRAY_SIZE(tests),
72 .setup = setup,
73 .cleanup = cleanup,
74 .needs_tmpdir = 1,
75 .forks_child = 1,
76 };
77