1 /* 2 * Copyright (c) International Business Machines Corp., 2001 3 * 07/2001 Ported by Wayne Boyer 4 * 11/2016 Modified by Guangwen Feng <fenggw-fnst (at) cn.fujitsu.com> 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 the 14 * 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, see <http://www.gnu.org/licenses/>. 18 */ 19 20 /* 21 * Verify that, 22 * 1) getpriority(2) fails with -1 and sets errno to EINVAL if 'which' 23 * argument was not one of PRIO_PROCESS, PRIO_PGRP, or PRIO_USER. 24 * 2) getpriority(2) fails with -1 and sets errno to ESRCH if no 25 * process was located for 'which' and 'who' arguments. 26 */ 27 28 #include <errno.h> 29 #include <sys/resource.h> 30 #include <sys/time.h> 31 #include "tst_test.h" 32 33 #define INVAL_FLAG -1 34 #define INVAL_ID -1 35 36 static struct tcase { 37 int which; 38 int who; 39 int exp_errno; 40 } tcases[] = { 41 /* test 1 */ 42 {INVAL_FLAG, 0, EINVAL}, 43 44 /* test 2 */ 45 {PRIO_PROCESS, INVAL_ID, ESRCH}, 46 {PRIO_PGRP, INVAL_ID, ESRCH}, 47 {PRIO_USER, INVAL_ID, ESRCH} 48 }; 49 50 static void verify_getpriority(unsigned int n) 51 { 52 struct tcase *tc = &tcases[n]; 53 54 TEST(getpriority(tc->which, tc->who)); 55 56 if (TEST_RETURN != -1) { 57 tst_res(TFAIL, "getpriority(%d, %d) succeeds unexpectedly, " 58 "returned %li", tc->which, tc->who, TEST_RETURN); 59 return; 60 } 61 62 if (tc->exp_errno != TEST_ERRNO) { 63 tst_res(TFAIL | TTERRNO, 64 "getpriority(%d, %d) should fail with %s", 65 tc->which, tc->who, tst_strerrno(tc->exp_errno)); 66 return; 67 } 68 69 tst_res(TPASS | TTERRNO, "getpriority(%d, %d) fails as expected", 70 tc->which, tc->who); 71 } 72 73 static struct tst_test test = { 74 .tid = "getpriority02", 75 .tcnt = ARRAY_SIZE(tcases), 76 .test = verify_getpriority, 77 }; 78
