1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* Copyright (c) International Business Machines Corp., 2001
3 * Ported to LTP: Wayne Boyer
4 */
5
6 /* DESCRIPTION
7 * This test will verify the mkdir(2) creates a new directory successfully and
8 * it is owned by the effective UID and GID of the process.
9 */
10
11 #include <errno.h>
12 #include <sys/stat.h>
13 #include <sys/types.h>
14 #include <unistd.h>
15 #include <pwd.h>
16 #include "tst_test.h"
17
18 #define PERMS 0777
19 #define TESTDIR "testdir"
20
verify_mkdir(void)21 static void verify_mkdir(void)
22 {
23 struct stat buf;
24
25 TEST(mkdir(TESTDIR, PERMS));
26 if (TST_RET == -1) {
27 tst_res(TFAIL | TTERRNO, "mkdir() Failed");
28 return;
29 }
30
31 SAFE_STAT(TESTDIR, &buf);
32
33 if (buf.st_uid != geteuid()) {
34 tst_res(TFAIL, "mkdir() FAILED to set owner ID "
35 "as process's effective ID");
36 return;
37 }
38
39 if (buf.st_gid != getegid()) {
40 tst_res(TFAIL, "mkdir() failed to set group ID "
41 "as the process's group ID");
42 return;
43 }
44
45 tst_res(TPASS, "mkdir() functionality is correct");
46
47 SAFE_RMDIR(TESTDIR);
48 }
49
setup(void)50 void setup(void)
51 {
52 struct passwd *pw;
53
54 pw = SAFE_GETPWNAM("nobody");
55
56 SAFE_SETUID(pw->pw_uid);
57 }
58
59 static struct tst_test test = {
60 .test_all = verify_mkdir,
61 .needs_tmpdir = 1,
62 .needs_root = 1,
63 .setup = setup,
64 };
65