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 * [Description] 9*49cdfc7eSAndroid Build Coastguard Worker * 10*49cdfc7eSAndroid Build Coastguard Worker * Test if setgid() system call sets errno to EPERM correctly. 11*49cdfc7eSAndroid Build Coastguard Worker * 12*49cdfc7eSAndroid Build Coastguard Worker * [Algorithm] 13*49cdfc7eSAndroid Build Coastguard Worker * 14*49cdfc7eSAndroid Build Coastguard Worker * Call setgid() to set the gid to that of root. Run this test as 15*49cdfc7eSAndroid Build Coastguard Worker * nobody, and expect to get EPERM. 16*49cdfc7eSAndroid Build Coastguard Worker */ 17*49cdfc7eSAndroid Build Coastguard Worker 18*49cdfc7eSAndroid Build Coastguard Worker #include <pwd.h> 19*49cdfc7eSAndroid Build Coastguard Worker #include "tst_test.h" 20*49cdfc7eSAndroid Build Coastguard Worker #include "compat_tst_16.h" 21*49cdfc7eSAndroid Build Coastguard Worker run(void)22*49cdfc7eSAndroid Build Coastguard Workerstatic void run(void) 23*49cdfc7eSAndroid Build Coastguard Worker { 24*49cdfc7eSAndroid Build Coastguard Worker struct passwd *rootpwent; 25*49cdfc7eSAndroid Build Coastguard Worker 26*49cdfc7eSAndroid Build Coastguard Worker rootpwent = SAFE_GETPWNAM("root"); 27*49cdfc7eSAndroid Build Coastguard Worker 28*49cdfc7eSAndroid Build Coastguard Worker GID16_CHECK(rootpwent->pw_gid, setgid); 29*49cdfc7eSAndroid Build Coastguard Worker 30*49cdfc7eSAndroid Build Coastguard Worker TST_EXP_FAIL(SETGID(rootpwent->pw_gid), EPERM); 31*49cdfc7eSAndroid Build Coastguard Worker } 32*49cdfc7eSAndroid Build Coastguard Worker setup(void)33*49cdfc7eSAndroid Build Coastguard Workerstatic void setup(void) 34*49cdfc7eSAndroid Build Coastguard Worker { 35*49cdfc7eSAndroid Build Coastguard Worker struct passwd *nobody = SAFE_GETPWNAM("nobody"); 36*49cdfc7eSAndroid Build Coastguard Worker 37*49cdfc7eSAndroid Build Coastguard Worker SAFE_SETGID(nobody->pw_gid); 38*49cdfc7eSAndroid Build Coastguard Worker SAFE_SETUID(nobody->pw_uid); 39*49cdfc7eSAndroid Build Coastguard Worker } 40*49cdfc7eSAndroid Build Coastguard Worker 41*49cdfc7eSAndroid Build Coastguard Worker static struct tst_test test = { 42*49cdfc7eSAndroid Build Coastguard Worker .needs_root = 1, 43*49cdfc7eSAndroid Build Coastguard Worker .setup = setup, 44*49cdfc7eSAndroid Build Coastguard Worker .test_all = run, 45*49cdfc7eSAndroid Build Coastguard Worker }; 46