1 /*
2 * Copyright (c) 2016 Oracle and/or its affiliates. All Rights Reserved.
3 * Copyright (c) International Business Machines Corp., 2006
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of
8 * the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it would be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * 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, see <http://www.gnu.org/licenses/>.
17 *
18 * DESCRIPTION
19 * This test case will verify basic function of unlinkat
20 * added by kernel 2.6.16 or up.
21 *
22 * Author
23 * Yi Yang <yyangcdl@cn.ibm.com>
24 */
25
26 #define _GNU_SOURCE
27
28 #include <sys/types.h>
29 #include <sys/stat.h>
30 #include <sys/time.h>
31 #include <fcntl.h>
32 #include <error.h>
33 #include <stdlib.h>
34 #include <errno.h>
35 #include <string.h>
36 #include <signal.h>
37 #include "test.h"
38 #include "safe_macros.h"
39 #include "linux_syscall_numbers.h"
40
41 #define TEST_CASES 7
42 #ifndef AT_FDCWD
43 #define AT_FDCWD -100
44 #endif
45 #ifndef AT_REMOVEDIR
46 #define AT_REMOVEDIR 0x200
47 #endif
48
49 void setup();
50 void cleanup();
51
52 char *TCID = "unlinkat01";
53 int TST_TOTAL = TEST_CASES;
54
55 static const char pathname[] = "unlinkattestdir",
56 subpathname[] = "unlinkatsubtestdir",
57 subpathdir[] = "unlinkattestdir/unlinkatsubtestdir",
58 testfile[] = "unlinkattestfile.txt",
59 testfile2[] = "unlinkattestdir/unlinkattestfile.txt";
60 static char *testfile3;
61
62 static int fds[TEST_CASES];
63 static const char *filenames[TEST_CASES];
64 static const int expected_errno[] = { 0, 0, ENOTDIR, EBADF, EINVAL, 0, 0 };
65 static const int flags[] = { 0, 0, 0, 0, 9999, 0, AT_REMOVEDIR };
66
myunlinkat(int dirfd,const char * filename,int flags)67 int myunlinkat(int dirfd, const char *filename, int flags)
68 {
69 return ltp_syscall(__NR_unlinkat, dirfd, filename, flags);
70 }
71
main(int ac,char ** av)72 int main(int ac, char **av)
73 {
74 int lc;
75 int i;
76
77 if ((tst_kvercmp(2, 6, 16)) < 0)
78 tst_brkm(TCONF, NULL, "Test must be run with kernel 2.6.16+");
79
80 tst_parse_opts(ac, av, NULL, NULL);
81
82 setup();
83
84 for (lc = 0; TEST_LOOPING(lc); lc++) {
85 tst_count = 0;
86
87 for (i = 0; i < TST_TOTAL; i++) {
88 TEST(myunlinkat(fds[i], filenames[i], flags[i]));
89
90 if (TEST_ERRNO == expected_errno[i]) {
91 tst_resm(TPASS | TTERRNO,
92 "unlinkat() returned expected errno");
93 } else {
94 tst_resm(TFAIL | TTERRNO, "unlinkat() failed");
95 }
96 }
97
98 }
99
100 cleanup();
101 tst_exit();
102 }
103
setup(void)104 void setup(void)
105 {
106 tst_sig(NOFORK, DEF_HANDLER, cleanup);
107
108 tst_tmpdir();
109
110 char *abs_path = tst_get_tmpdir();
111
112 SAFE_ASPRINTF(cleanup, &testfile3, "%s/unlinkatfile3.txt", abs_path);
113
114 free(abs_path);
115
116 SAFE_MKDIR(cleanup, pathname, 0700);
117 SAFE_MKDIR(cleanup, subpathdir, 0700);
118
119 fds[0] = SAFE_OPEN(cleanup, pathname, O_DIRECTORY);
120 fds[1] = fds[4] = fds[6] = fds[0];
121
122 SAFE_FILE_PRINTF(cleanup, testfile, testfile);
123 SAFE_FILE_PRINTF(cleanup, testfile2, testfile2);
124
125 fds[2] = SAFE_OPEN(cleanup, testfile3, O_CREAT | O_RDWR, 0600);
126
127 fds[3] = 100;
128 fds[5] = AT_FDCWD;
129
130 filenames[0] = filenames[2] = filenames[3] = filenames[4] =
131 filenames[5] = testfile;
132 filenames[1] = testfile3;
133 filenames[6] = subpathname;
134
135 TEST_PAUSE;
136 }
137
cleanup(void)138 void cleanup(void)
139 {
140 if (fds[0] > 0)
141 close(fds[0]);
142 if (fds[2] > 0)
143 close(fds[2]);
144
145 free(testfile3);
146 tst_rmdir();
147 }
148