1 /* 2 * Copyright (c) International Business Machines Corp., 2001 3 * 07/2001 Ported by Wayne Boyer 4 * Copyright (c) 2017 Cyril Hrubis <chrubis@suse.cz> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 14 * the GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 /* 21 * Testcase to test the different errnos set by setrlimit(2) system call. 22 */ 23 #include <pwd.h> 24 #include <errno.h> 25 #include "tst_test.h" 26 27 static char nobody_uid[] = "nobody"; 28 static struct rlimit rlim; 29 30 static struct tcase { 31 int resource; 32 struct rlimit *rlim; 33 int exp_errno; 34 } tcases[] = { 35 {-1, &rlim, EINVAL}, 36 {RLIMIT_NOFILE, &rlim, EPERM} 37 }; 38 39 static void verify_setrlimit(unsigned int n) 40 { 41 struct tcase *tc = &tcases[n]; 42 43 TEST(setrlimit(tc->resource, tc->rlim)); 44 45 if (TEST_RETURN != -1) { 46 tst_res(TFAIL, "call succeeded unexpectedly"); 47 return; 48 } 49 50 if (TEST_ERRNO != tc->exp_errno) { 51 tst_res(TFAIL | TTERRNO, 52 "setrlimit() should fail with %s got", 53 tst_strerrno(tc->exp_errno)); 54 return; 55 } 56 57 tst_res(TPASS | TTERRNO, "setrlimit() failed as expected"); 58 } 59 60 static void setup(void) 61 { 62 struct passwd *ltpuser = SAFE_GETPWNAM(nobody_uid); 63 64 SAFE_SETUID(ltpuser->pw_uid); 65 66 SAFE_GETRLIMIT(RLIMIT_NOFILE, &rlim); 67 rlim.rlim_max++; 68 } 69 70 static struct tst_test test = { 71 .setup = setup, 72 .test = verify_setrlimit, 73 .tcnt = ARRAY_SIZE(tcases), 74 .needs_root = 1, 75 }; 76