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 * Ported by Wayne Boyer 5*49cdfc7eSAndroid Build Coastguard Worker */ 6*49cdfc7eSAndroid Build Coastguard Worker 7*49cdfc7eSAndroid Build Coastguard Worker /*\ 8*49cdfc7eSAndroid Build Coastguard Worker * [Algorithm] 9*49cdfc7eSAndroid Build Coastguard Worker * 10*49cdfc7eSAndroid Build Coastguard Worker * As a root sets current group id to nobody and expects success. 11*49cdfc7eSAndroid Build Coastguard Worker */ 12*49cdfc7eSAndroid Build Coastguard Worker 13*49cdfc7eSAndroid Build Coastguard Worker #include <pwd.h> 14*49cdfc7eSAndroid Build Coastguard Worker #include "tst_test.h" 15*49cdfc7eSAndroid Build Coastguard Worker #include <compat_tst_16.h> 16*49cdfc7eSAndroid Build Coastguard Worker 17*49cdfc7eSAndroid Build Coastguard Worker static struct passwd *nobody; 18*49cdfc7eSAndroid Build Coastguard Worker run(void)19*49cdfc7eSAndroid Build Coastguard Workerstatic void run(void) 20*49cdfc7eSAndroid Build Coastguard Worker { 21*49cdfc7eSAndroid Build Coastguard Worker TST_EXP_PASS(SETGID(nobody->pw_gid)); 22*49cdfc7eSAndroid Build Coastguard Worker 23*49cdfc7eSAndroid Build Coastguard Worker if (getgid() != nobody->pw_gid) 24*49cdfc7eSAndroid Build Coastguard Worker tst_res(TFAIL, "setgid failed to set gid to nobody gid"); 25*49cdfc7eSAndroid Build Coastguard Worker else 26*49cdfc7eSAndroid Build Coastguard Worker tst_res(TPASS, "functionality of getgid() is correct"); 27*49cdfc7eSAndroid Build Coastguard Worker } 28*49cdfc7eSAndroid Build Coastguard Worker setup(void)29*49cdfc7eSAndroid Build Coastguard Workerstatic void setup(void) 30*49cdfc7eSAndroid Build Coastguard Worker { 31*49cdfc7eSAndroid Build Coastguard Worker nobody = SAFE_GETPWNAM("nobody"); 32*49cdfc7eSAndroid Build Coastguard Worker GID16_CHECK(nobody->pw_gid, setgid); 33*49cdfc7eSAndroid Build Coastguard Worker } 34*49cdfc7eSAndroid Build Coastguard Worker 35*49cdfc7eSAndroid Build Coastguard Worker static struct tst_test test = { 36*49cdfc7eSAndroid Build Coastguard Worker .needs_root = 1, 37*49cdfc7eSAndroid Build Coastguard Worker .setup = setup, 38*49cdfc7eSAndroid Build Coastguard Worker .test_all = run, 39*49cdfc7eSAndroid Build Coastguard Worker }; 40