xref: /aosp_15_r20/external/ltp/testcases/kernel/syscalls/getsid/getsid01.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) International Business Machines  Corp., 2001
4*49cdfc7eSAndroid Build Coastguard Worker  *		07/2001 Ported by Wayne Boyer
5*49cdfc7eSAndroid Build Coastguard Worker  *   Copyright (c) 2022 SUSE LLC Avinesh Kumar <[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  * Verify that session IDs returned by getsid() (with argument pid=0)
12*49cdfc7eSAndroid Build Coastguard Worker  * are same in parent and child process.
13*49cdfc7eSAndroid Build Coastguard Worker  */
14*49cdfc7eSAndroid Build Coastguard Worker 
15*49cdfc7eSAndroid Build Coastguard Worker 
16*49cdfc7eSAndroid Build Coastguard Worker #include "tst_test.h"
17*49cdfc7eSAndroid Build Coastguard Worker 
18*49cdfc7eSAndroid Build Coastguard Worker static pid_t p_sid;
19*49cdfc7eSAndroid Build Coastguard Worker 
run(void)20*49cdfc7eSAndroid Build Coastguard Worker static void run(void)
21*49cdfc7eSAndroid Build Coastguard Worker {
22*49cdfc7eSAndroid Build Coastguard Worker 	pid_t pid, c_sid;
23*49cdfc7eSAndroid Build Coastguard Worker 
24*49cdfc7eSAndroid Build Coastguard Worker 	TEST(getsid(0));
25*49cdfc7eSAndroid Build Coastguard Worker 	if (TST_RET == -1) {
26*49cdfc7eSAndroid Build Coastguard Worker 		tst_res(TFAIL | TTERRNO, "getsid(0) failed in parent");
27*49cdfc7eSAndroid Build Coastguard Worker 		return;
28*49cdfc7eSAndroid Build Coastguard Worker 	}
29*49cdfc7eSAndroid Build Coastguard Worker 
30*49cdfc7eSAndroid Build Coastguard Worker 	p_sid = TST_RET;
31*49cdfc7eSAndroid Build Coastguard Worker 
32*49cdfc7eSAndroid Build Coastguard Worker 	pid = SAFE_FORK();
33*49cdfc7eSAndroid Build Coastguard Worker 
34*49cdfc7eSAndroid Build Coastguard Worker 	if (pid == 0) {
35*49cdfc7eSAndroid Build Coastguard Worker 		TEST(getsid(0));
36*49cdfc7eSAndroid Build Coastguard Worker 		if (TST_RET == -1) {
37*49cdfc7eSAndroid Build Coastguard Worker 			tst_res(TFAIL | TTERRNO, "getsid(0) failed in child");
38*49cdfc7eSAndroid Build Coastguard Worker 			return;
39*49cdfc7eSAndroid Build Coastguard Worker 		}
40*49cdfc7eSAndroid Build Coastguard Worker 		c_sid = TST_RET;
41*49cdfc7eSAndroid Build Coastguard Worker 		TST_EXP_EQ_LI(p_sid, c_sid);
42*49cdfc7eSAndroid Build Coastguard Worker 	} else {
43*49cdfc7eSAndroid Build Coastguard Worker 		SAFE_WAITPID(pid, NULL, 0);
44*49cdfc7eSAndroid Build Coastguard Worker 	}
45*49cdfc7eSAndroid Build Coastguard Worker }
46*49cdfc7eSAndroid Build Coastguard Worker 
47*49cdfc7eSAndroid Build Coastguard Worker static struct tst_test test = {
48*49cdfc7eSAndroid Build Coastguard Worker 	.test_all = run,
49*49cdfc7eSAndroid Build Coastguard Worker 	.forks_child = 1
50*49cdfc7eSAndroid Build Coastguard Worker };
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