xref: /aosp_15_r20/external/ltp/testcases/kernel/syscalls/setfsuid/setfsuid02.c (revision 49cdfc7efb34551c7342be41a7384b9c40d7cab7)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Copyright (C) International Business Machines  Corp., 2001
4  * Ported by Wayne Boyer
5  * Adapted by Dustin Kirkland ([email protected])
6  * Copyright (c) 2022 SUSE LLC Avinesh Kumar <[email protected]>
7  */
8 
9 /*\
10  * [Description]
11  *
12  * Verify that setfsuid() syscall fails if an invalid fsuid is given.
13  */
14 
15 #include <pwd.h>
16 #include "tst_test.h"
17 #include "compat_tst_16.h"
18 
run(void)19 static void run(void)
20 {
21 	uid_t invalid_uid, current_uid;
22 
23 	current_uid = geteuid();
24 	invalid_uid = (UID_T)-1;
25 
26 	UID16_CHECK(invalid_uid, setfsuid);
27 
28 	TST_EXP_VAL_SILENT(SETFSUID(invalid_uid), (long)current_uid);
29 	TST_EXP_VAL(SETFSUID(invalid_uid), (long)current_uid,
30 		    "setfsuid(invalid_fsuid) test for expected failure:");
31 }
32 
33 static struct tst_test test = {
34 	.test_all = run
35 };
36