1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
4 *
5 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
6 * Mountain View, CA 94043, or:
7 *
8 * http://www.sgi.com
9 *
10 * For further information regarding this notice, see:
11 *
12 * http://oss.sgi.com/projects/GenInfo/NoticeExplan/
13 *
14 * Author: William Roske
15 * Co-pilot: Dave Fenner
16 */
17
18 /*
19 * Testcase to test the basic functionality of setregid(2) systemm call.
20 */
21
22 #include "tst_test.h"
23 #include "compat_tst_16.h"
24
25 static gid_t gid, egid; /* current real and effective group id */
26 static gid_t neg_one = -1;
27
28 static struct tcase {
29 gid_t *arg1;
30 gid_t *arg2;
31 const char *msg;
32 } tcases[] = {
33 {&neg_one, &neg_one, "Dont change either real or effective gid" },
34 {&neg_one, &egid, "Change effective to effective gid" },
35 {&gid, &neg_one, "Change real to real gid" },
36 {&neg_one, &gid, "Change effective to real gid" },
37 {&gid, &gid, "Try to change real to current real" }
38 };
39
run(unsigned int n)40 static void run(unsigned int n)
41 {
42 struct tcase *tc = &tcases[n];
43
44 TEST(SETREGID(*tc->arg1, *tc->arg2));
45
46 if (TST_RET == -1)
47 tst_res(TFAIL | TTERRNO, tc->msg);
48 else
49 tst_res(TPASS, tc->msg);
50 }
51
setup(void)52 static void setup(void)
53 {
54 gid = getgid();
55 GID16_CHECK(gid, setregid);
56
57 egid = getegid();
58 GID16_CHECK(egid, setregid);
59 }
60
61 static struct tst_test test = {
62 .tcnt = ARRAY_SIZE(tcases),
63 .test = run,
64 .setup = setup,
65 };
66