| /* |
| * |
| * Copyright (c) International Business Machines Corp., 2001 |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /* |
| * NAME |
| * setrlimit03.c |
| * |
| * DESCRIPTION |
| * Test for EPERM when the super-user tries to increase RLIMIT_NOFILE |
| * beyond the system limit. |
| * |
| * USAGE: <for command-line> |
| * setrlimit03 [-c n] [-e] [-i n] [-I x] [-P x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -e : Turn on errno logging. |
| * -i n : Execute test n times. |
| * -I x : Execute test for x seconds. |
| * -P x : Pause for x seconds between iterations. |
| * -t : Turn on syscall timing. |
| * |
| * HISTORY |
| * 07/2001 Ported by Wayne Boyer |
| * |
| * RESTRICTIONS |
| * Must run test as root. |
| */ |
| #include <sys/time.h> |
| #include <sys/resource.h> |
| #include <unistd.h> |
| #include <errno.h> |
| #include "test.h" |
| #include <linux/fs.h> |
| |
| char *TCID = "setrlimit03"; |
| int TST_TOTAL = 1; |
| |
| #if !defined(NR_OPEN) |
| //Taken from definition in /usr/include/linux/fs.h |
| #define NR_OPEN (1024*1024) |
| #endif |
| |
| void setup(); |
| void cleanup(); |
| |
| int main(int ac, char **av) |
| { |
| int lc; |
| const char *msg; |
| struct rlimit rlim; |
| |
| if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) { |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| } |
| |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| tst_count = 0; |
| |
| if (getrlimit(RLIMIT_NOFILE, &rlim) != 0) |
| tst_brkm(TFAIL, cleanup, "getrlimit failed, " |
| "errno = %d", errno); |
| rlim.rlim_max = NR_OPEN + 1; |
| |
| TEST(setrlimit(RLIMIT_NOFILE, &rlim)); |
| |
| if (TEST_RETURN != -1) { |
| tst_resm(TFAIL, "call succeeded unexpectedly"); |
| continue; |
| } |
| |
| if (TEST_ERRNO != EPERM) { |
| tst_resm(TFAIL, "Expected EPERM, got %d", TEST_ERRNO); |
| } else { |
| tst_resm(TPASS, "got expected EPERM error"); |
| } |
| } |
| cleanup(); |
| tst_exit(); |
| |
| } |
| |
| /* |
| * setup() - performs all ONE TIME setup for this test. |
| */ |
| void setup(void) |
| { |
| tst_require_root(NULL); |
| |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| TEST_PAUSE; |
| } |
| |
| /* |
| * cleanup() - performs all ONE TIME cleanup for this test at |
| * completion or premature exit. |
| */ |
| void cleanup(void) |
| { |
| |
| } |