1 /* 2 * Copyright (C) 2015 Cedric Hnyda ced.hnyda (at) gmail.com 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms of version 2 of the GNU General Public License as 6 * published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it would be useful, but 9 * WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 11 * 12 * Further, this software is distributed without any warranty that it is 13 * free of the rightful claim of any third person regarding infringement 14 * or the like. Any license provided herein, whether implied or 15 * otherwise, applies only to this software file. Patent licenses, if 16 * any, provided herein do not apply to combinations of this program with 17 * other software, or any other product whatsoever. 18 * 19 * You should have received a copy of the GNU General Public License along 20 * with this program; if not, write the Free Software Foundation, Inc., 21 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 22 * 23 */ 24 25 /* 26 * AUTHOR : Cdric Hnyda 27 * DATE STARTED : 06/13/2015 28 * 29 * Calls getrandom(2) after having limited the number of available file 30 * descriptors to 3 and expects success. 31 */ 32 33 #include <sys/resource.h> 34 #include "lapi/getrandom.h" 35 #include "linux_syscall_numbers.h" 36 #include "test.h" 37 38 char *TCID = "getrandom04"; 39 int TST_TOTAL = 1; 40 static char buf[128]; 41 42 int main(int ac, char **av) 43 { 44 tst_parse_opts(ac, av, NULL, NULL); 45 46 int r; 47 48 struct rlimit lim = {3, 3}; 49 50 r = setrlimit(RLIMIT_NOFILE, &lim); 51 52 if (r == -1) 53 tst_brkm(TBROK | TTERRNO, NULL, "setrlimit failed"); 54 55 TEST(ltp_syscall(__NR_getrandom, buf, 100, 0)); 56 if (TEST_RETURN == -1) 57 tst_resm(TFAIL | TTERRNO, "getrandom failed"); 58 else 59 tst_resm(TPASS, "getrandom returned %ld", TEST_RETURN); 60 61 tst_exit(); 62 } 63
