xref: /aosp_15_r20/external/ltp/testcases/kernel/syscalls/getegid/getegid01.c (revision 49cdfc7efb34551c7342be41a7384b9c40d7cab7)
1*49cdfc7eSAndroid Build Coastguard Worker // SPDX-License-Identifier: GPL-2.0-or-later
2*49cdfc7eSAndroid Build Coastguard Worker /*
3*49cdfc7eSAndroid Build Coastguard Worker  * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
4*49cdfc7eSAndroid Build Coastguard Worker  *   William Roske, Dave Fenner
5*49cdfc7eSAndroid Build Coastguard Worker  * Copyright (C) 2023 SUSE LLC Andrea Cervesato <[email protected]>
6*49cdfc7eSAndroid Build Coastguard Worker  */
7*49cdfc7eSAndroid Build Coastguard Worker 
8*49cdfc7eSAndroid Build Coastguard Worker /*\
9*49cdfc7eSAndroid Build Coastguard Worker  * [Description]
10*49cdfc7eSAndroid Build Coastguard Worker  *
11*49cdfc7eSAndroid Build Coastguard Worker  * This test checks if getegid() returns the effective group id.
12*49cdfc7eSAndroid Build Coastguard Worker  */
13*49cdfc7eSAndroid Build Coastguard Worker 
14*49cdfc7eSAndroid Build Coastguard Worker #include "tst_test.h"
15*49cdfc7eSAndroid Build Coastguard Worker #include "compat_tst_16.h"
16*49cdfc7eSAndroid Build Coastguard Worker 
run(void)17*49cdfc7eSAndroid Build Coastguard Worker static void run(void)
18*49cdfc7eSAndroid Build Coastguard Worker {
19*49cdfc7eSAndroid Build Coastguard Worker 	gid_t gid, st_egid;
20*49cdfc7eSAndroid Build Coastguard Worker 
21*49cdfc7eSAndroid Build Coastguard Worker 	SAFE_FILE_LINES_SCANF("/proc/self/status", "Gid: %*d %d", &st_egid);
22*49cdfc7eSAndroid Build Coastguard Worker 	gid = getegid();
23*49cdfc7eSAndroid Build Coastguard Worker 
24*49cdfc7eSAndroid Build Coastguard Worker 	if (GID_SIZE_CHECK(st_egid))
25*49cdfc7eSAndroid Build Coastguard Worker 		TST_EXP_EQ_LI(gid, st_egid);
26*49cdfc7eSAndroid Build Coastguard Worker 	else
27*49cdfc7eSAndroid Build Coastguard Worker 		tst_res(TPASS, "getegid() passed");
28*49cdfc7eSAndroid Build Coastguard Worker }
29*49cdfc7eSAndroid Build Coastguard Worker 
30*49cdfc7eSAndroid Build Coastguard Worker static struct tst_test test = {
31*49cdfc7eSAndroid Build Coastguard Worker 	.test_all = run,
32*49cdfc7eSAndroid Build Coastguard Worker };
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