1 /*
2 * Copyright (c) 2014 Fujitsu Ltd.
3 * Author: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
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 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write the Free Software Foundation, Inc.,
15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
16 */
17 /*
18 * Test Description:
19 * Verify that,
20 * 1. Creat a directory and open it, then delete the directory, ENOENT would
21 * return.
22 * 2. File descriptor does not refer to a directory, ENOTDIR would return.
23 * 3. Invalid file descriptor fd, EBADF would return.
24 * 4. Argument points outside the calling process's address space, EFAULT
25 * would return.
26 *
27 * PS:
28 * This file is for readdir(2) and the other files(readdir01.c and
29 * readdir02.c) are for readdir(3).
30 */
31
32 #define _GNU_SOURCE
33
34 #include <stdio.h>
35 #include <sys/types.h>
36 #include <sys/stat.h>
37 #include <fcntl.h>
38 #include <errno.h>
39 #include <unistd.h>
40 #include <sys/mman.h>
41 #include "test.h"
42 #include "safe_macros.h"
43 #include "lapi/syscalls.h"
44 #include "lapi/readdir.h"
45
46 char *TCID = "readdir21";
47
48 #define TEST_DIR "test_dir"
49 #define TEST_DIR4 "test_dir4"
50 #define TEST_FILE "test_file"
51 #define DIR_MODE (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP| \
52 S_IXGRP|S_IROTH|S_IXOTH)
53
54 static unsigned int del_dir_fd, file_fd;
55 static unsigned int invalid_fd = 999;
56 static unsigned int dir_fd;
57 static struct old_linux_dirent dirp;
58 static void setup(void);
59 static void cleanup(void);
60
61 static struct test_case_t {
62 unsigned int *fd;
63 struct old_linux_dirent *dirp;
64 unsigned int count;
65 int exp_errno;
66 } test_cases[] = {
67 {&del_dir_fd, &dirp, sizeof(struct old_linux_dirent), ENOENT},
68 {&file_fd, &dirp, sizeof(struct old_linux_dirent), ENOTDIR},
69 {&invalid_fd, &dirp, sizeof(struct old_linux_dirent), EBADF},
70 #if !defined(UCLINUX)
71 {&dir_fd, (struct old_linux_dirent *)-1,
72 sizeof(struct old_linux_dirent), EFAULT},
73 #endif
74 };
75
76 int TST_TOTAL = ARRAY_SIZE(test_cases);
77 static void readdir_verify(const struct test_case_t *);
78
main(int argc,char ** argv)79 int main(int argc, char **argv)
80 {
81 int i, lc;
82
83 tst_parse_opts(argc, argv, NULL, NULL);
84
85 setup();
86
87 for (lc = 0; TEST_LOOPING(lc); lc++) {
88 tst_count = 0;
89 for (i = 0; i < TST_TOTAL; i++)
90 readdir_verify(&test_cases[i]);
91 }
92
93 cleanup();
94 tst_exit();
95 }
96
setup(void)97 static void setup(void)
98 {
99 tst_sig(NOFORK, DEF_HANDLER, cleanup);
100
101 TEST_PAUSE;
102
103 tst_tmpdir();
104
105 SAFE_MKDIR(cleanup, TEST_DIR, DIR_MODE);
106 del_dir_fd = SAFE_OPEN(cleanup, TEST_DIR, O_RDONLY | O_DIRECTORY);
107 SAFE_RMDIR(cleanup, TEST_DIR);
108
109 file_fd = SAFE_OPEN(cleanup, TEST_FILE, O_RDWR | O_CREAT, 0777);
110
111 SAFE_MKDIR(cleanup, TEST_DIR4, DIR_MODE);
112 dir_fd = SAFE_OPEN(cleanup, TEST_DIR4, O_RDONLY | O_DIRECTORY);
113
114 #if !defined(UCLINUX)
115 test_cases[3].dirp = SAFE_MMAP(cleanup, 0, 1, PROT_NONE,
116 MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
117 #endif
118 }
119
readdir_verify(const struct test_case_t * test)120 static void readdir_verify(const struct test_case_t *test)
121 {
122 TEST(ltp_syscall(__NR_readdir, *test->fd, test->dirp, test->count));
123
124 if (TEST_RETURN != -1) {
125 tst_resm(TFAIL, "readdir() succeeded unexpectedly");
126 return;
127 }
128
129 if (TEST_ERRNO == test->exp_errno) {
130 tst_resm(TPASS | TTERRNO, "readdir() failed as expected");
131 } else {
132 tst_resm(TFAIL | TTERRNO,
133 "readdir() failed unexpectedly; expected: %d - %s",
134 test->exp_errno, strerror(test->exp_errno));
135 }
136 }
137
cleanup(void)138 static void cleanup(void)
139 {
140 if (dir_fd > 0)
141 close(dir_fd);
142
143 if (del_dir_fd > 0)
144 close(del_dir_fd);
145
146 if (file_fd > 0)
147 close(file_fd);
148
149 tst_rmdir();
150 }
151