1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) Linux Test Project, 2009-2021
4 * Copyright (c) 2016 Oracle and/or its affiliates. All Rights Reserved.
5 * Copyright (c) International Business Machines Corp., 2006
6 * Author: Yi Yang <[email protected]>
7 */
8
9 /*\
10 * [Description]
11 * Basic unlinkat() test.
12 */
13
14 #include "tst_test.h"
15 #include "lapi/syscalls.h"
16 #include "tst_safe_stdio.h"
17 #include "lapi/fcntl.h"
18
19 static const char pathname[] = "unlinkattestdir",
20 subpathname[] = "unlinkatsubtestdir",
21 subpathdir[] = "unlinkattestdir/unlinkatsubtestdir",
22 testfile[] = "unlinkattestfile.txt",
23 testfile2[] = "unlinkattestdir/unlinkattestfile.txt";
24
25 static char *testfile3;
26
27 static int fd;
getfd(int i)28 static int getfd(int i)
29 {
30 if (i == 2)
31 fd = SAFE_OPEN(testfile3, O_CREAT | O_RDWR, 0600);
32 else
33 fd = SAFE_OPEN(pathname, O_DIRECTORY);
34
35 return fd;
36 }
37
38 static struct tcase {
39 int fd;
40 const char *filename;
41 int flag;
42 int exp_errno;
43 } tc[] = {
44 {0, testfile, 0, 0},
45 {0, NULL, 0, 0},
46 {0, testfile, 0, ENOTDIR},
47 {100, testfile, 0, EBADF},
48 {0, testfile, 9999, EINVAL},
49 {AT_FDCWD, testfile, 0, 0},
50 {0, subpathname, AT_REMOVEDIR, 0},
51 };
52
run(unsigned int i)53 static void run(unsigned int i)
54 {
55 int fd3 = -1;
56
57 /* tesfile2 will be unlinked by test0. */
58 if (access(testfile2, F_OK))
59 SAFE_FILE_PRINTF(testfile2, testfile2);
60
61 /* testfile3 will be unlined by test1. */
62 if (access(testfile3, F_OK))
63 fd3 = SAFE_OPEN(testfile3, O_CREAT | O_RDWR, 0600);
64
65 /* subpathdir will be unlinked by test6. */
66 if (access(subpathdir, F_OK))
67 SAFE_MKDIR(subpathdir, 0700);
68
69 /* testfile must exist except test1 and test6. */
70 if (access(testfile, F_OK))
71 SAFE_FILE_PRINTF(testfile, testfile);
72
73 if (tc[i].fd)
74 TEST(unlinkat(tc[i].fd, tc[i].filename, tc[i].flag));
75 else
76 TEST(unlinkat(getfd(i), tc[i].filename, tc[i].flag));
77
78 if (TST_ERR == tc[i].exp_errno)
79 tst_res(TPASS | TTERRNO, "unlinkat() returned expected errno");
80 else
81 tst_res(TFAIL | TTERRNO, "unlinkat() failed");
82
83 if (!tc[i].fd)
84 SAFE_CLOSE(fd);
85
86 if (fd3 > 0)
87 SAFE_CLOSE(fd3);
88 }
89
setup(void)90 static void setup(void)
91 {
92 char buf[PATH_MAX];
93 SAFE_GETCWD(buf, PATH_MAX);
94 SAFE_ASPRINTF(&testfile3, "%s/unlinkatfile3.txt", buf);
95 tc[1].filename = testfile3;
96
97 SAFE_MKDIR(pathname, 0700);
98 }
99
cleanup(void)100 static void cleanup(void)
101 {
102 SAFE_UNLINK(testfile);
103 SAFE_UNLINK(testfile2);
104 SAFE_RMDIR(pathname);
105 }
106
107 static struct tst_test test = {
108 .needs_tmpdir = 1,
109 .tcnt = ARRAY_SIZE(tc),
110 .setup = setup,
111 .test = run,
112 .cleanup = cleanup,
113 };
114