1 /* 2 * Copyright (c) International Business Machines Corp., 2001 3 * 07/2001 Ported by Wayne Boyer 4 * Copyright (c) 2016 Cyril Hrubis <chrubis (at) 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 Foundation, 18 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 /* 21 * Verify that any user can successfully increase the nice value of 22 * the process by passing a higher increment value (> max. applicable limits) 23 * to nice() system call. 24 */ 25 #include <unistd.h> 26 #include <errno.h> 27 #include <sys/resource.h> 28 29 #include "tst_test.h" 30 31 #define NICEINC 50 32 #define MAX_PRIO 19 33 #define DEFAULT_PRIO 0 34 35 static void verify_nice(void) 36 { 37 int new_nice; 38 39 TEST(nice(NICEINC)); 40 41 if (TST_RET == -1) { 42 tst_res(TFAIL | TTERRNO, "nice(%d) returned -1", NICEINC); 43 return; 44 } 45 46 if (TST_ERR) { 47 tst_res(TFAIL | TTERRNO, "nice(%d) failed", NICEINC); 48 return; 49 } 50 51 new_nice = SAFE_GETPRIORITY(PRIO_PROCESS, 0); 52 53 if (new_nice != MAX_PRIO) { 54 tst_res(TFAIL, "Process priority %i, expected %i", 55 new_nice, MAX_PRIO); 56 return; 57 } 58 59 tst_res(TPASS, "nice(%d) passed", NICEINC); 60 61 TEST(nice(DEFAULT_PRIO)); 62 if (TST_ERR) 63 tst_brk(TBROK | TERRNO, "nice(-NICEINC) failed"); 64 } 65 66 static struct tst_test test = { 67 .test_all = verify_nice, 68 }; 69
