| /* |
| * |
| * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| /* |
| * NAME |
| * chdir04.c |
| * |
| * DESCRIPTION |
| * Testcase to test whether chdir(2) sets errno correctly. |
| * |
| * ALGORITHM |
| * 1. Test for ENAMETOOLONG: |
| * Create a bad directory name with length more than |
| * |
| * VFS_MAXNAMELEN (Linux kernel variable), and attempt to |
| * chdir(2) to it. |
| * |
| * 2. Test for ENOENT: |
| * Attempt to chdir(2) on a non-existent directory |
| * |
| * 3. Test for EFAULT: |
| * Pass an address which lies outside the address space of the |
| * process, and expect an EFAULT. |
| * |
| * USAGE: <for command-line> |
| * chdir04 [-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 |
| * NONE |
| */ |
| |
| #include <stdio.h> |
| #include <errno.h> |
| #include <sys/stat.h> |
| #include <sys/mman.h> |
| #include <test.h> |
| #include <usctest.h> |
| |
| char *TCID = "chdir04"; |
| int TST_TOTAL = 3; |
| extern int Tst_count; |
| |
| int exp_enos[] = {ENAMETOOLONG, ENOENT, EFAULT, 0}; |
| |
| char bad_dir[] = "abcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyz"; |
| |
| char noexist_dir[] = "/tmp/noexistdir"; |
| |
| struct test_case_t { |
| char *dname; |
| int error; |
| } TC[] = { |
| /* |
| * to test whether chdir() is setting ENAMETOOLONG if the |
| * directory is more than VFS_MAXNAMELEN |
| */ |
| {bad_dir, ENAMETOOLONG}, |
| |
| /* |
| * to test whether chdir() is setting ENOENT if the |
| * directory is not existing. |
| */ |
| {noexist_dir, ENOENT}, |
| |
| /* |
| * to test whether chdir() is setting EFAULT if the |
| * directory is an invalid address. |
| */ |
| {(void *)-1, EFAULT} |
| }; |
| |
| int flag; |
| #define FAILED 1 |
| |
| void setup(void); |
| void cleanup(void); |
| |
| char * bad_addr = 0; |
| |
| int |
| main(int ac, char **av) |
| { |
| int lc; /* loop counter */ |
| int i; |
| char *msg; /* message returned from parse_opts */ |
| |
| /* parse standard options */ |
| if ((msg = parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)NULL){ |
| tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg); |
| } |
| |
| setup(); |
| |
| /* set up the expected errnos */ |
| TEST_EXP_ENOS(exp_enos); |
| |
| /* check looping state if -i option is given */ |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| /* reset Tst_count in case we are looping */ |
| Tst_count = 0; |
| |
| /* loop through the test cases */ |
| for (i=0; i<TST_TOTAL; i++) { |
| |
| TEST(chdir(TC[i].dname)); |
| |
| if (TEST_RETURN != -1) { |
| tst_resm(TFAIL, "call succeeded unexpectedly"); |
| continue; |
| } |
| |
| TEST_ERROR_LOG(TEST_ERRNO); |
| |
| if (TEST_ERRNO == TC[i].error) { |
| tst_resm(TPASS, "expected failure - " |
| "errno = %d : %s", TEST_ERRNO, |
| strerror(TEST_ERRNO)); |
| } else { |
| tst_resm(TFAIL, "unexpected error - %d : %s - " |
| "expected %d", TEST_ERRNO, |
| strerror(TEST_ERRNO), TC[i].error); |
| } |
| } |
| } |
| cleanup(); |
| |
| return 0; |
| /*NOTREACHED*/ |
| } |
| |
| /* |
| * setup() - performs all ONE TIME setup for this test. |
| */ |
| void |
| setup() |
| { |
| /* capture signals */ |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| |
| /* Pause if that option was specified */ |
| TEST_PAUSE; |
| |
| /* make a temporary directory and cd to it */ |
| tst_tmpdir(); |
| |
| bad_addr = mmap(0, 1, PROT_NONE, |
| MAP_PRIVATE_EXCEPT_UCLINUX|MAP_ANONYMOUS, 0, 0); |
| if (bad_addr <= 0) { |
| tst_brkm(TBROK, cleanup, "mmap failed"); |
| } |
| TC[2].dname = bad_addr; |
| } |
| |
| |
| /* |
| * cleanup() - performs all ONE TIME cleanup for this test at |
| * completion or premature exit. |
| */ |
| void |
| cleanup() |
| { |
| /* |
| * print timing stats if that option was specified. |
| * print errno log if that option was specified. |
| */ |
| TEST_CLEANUP; |
| |
| /* |
| * Delete the test directory created in setup(). |
| */ |
| tst_rmdir(); |
| |
| /* exit with return code appropriate for results */ |
| tst_exit(); |
| } |