189 lines
4.5 KiB
C
189 lines
4.5 KiB
C
/*
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*
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* Copyright (c) International Business Machines Corp., 2001
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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* NAME
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* chdir02.c
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*
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* DESCRIPTION
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* Testcase to test whether chdir(2) sets errno correctly.
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*
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* ALGORITHM
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* 1. Test for ENAMETOOLONG:
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* Create a bad directory name with length more than
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*
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* VFS_MAXNAMELEN (Linux kernel variable), and attempt to
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* chdir(2) to it.
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*
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* 2. Test for ENOENT:
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* Attempt to chdir(2) on a non-existent directory
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*
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* 3. Test for EFAULT:
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* Pass an address which lies outside the address space of the
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* process, and expect an EFAULT.
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*
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* USAGE: <for command-line>
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* chdir02 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
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* where, -c n : Run n copies concurrently.
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* -e : Turn on errno logging.
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* -i n : Execute test n times.
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* -I x : Execute test for x seconds.
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* -P x : Pause for x seconds between iterations.
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* -t : Turn on syscall timing.
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*
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* HISTORY
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* 07/2001 Ported by Wayne Boyer
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*
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* RESTRICTIONS
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* NONE
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*/
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#include <errno.h>
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#include <sys/stat.h>
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#include <test.h>
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#include <usctest.h>
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const char *TCID = "chdir02";
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int TST_TOTAL = 3;
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extern int Tst_count;
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int exp_enos[] = {ENAMETOOLONG, ENOENT, EFAULT, 0};
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char bad_dir[] = "abcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyz";
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char noexist_dir[] = "/tmp/noexistdir";
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struct test_case_t {
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char *dname;
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int error;
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} TC[] = {
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/*
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* to test whether chdir() is setting ENAMETOOLONG if the
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* directory is more than VFS_MAXNAMELEN
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*/
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{bad_dir, ENAMETOOLONG},
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/*
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* to test whether chdir() is setting ENOENT if the
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* directory is not existing.
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*/
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{noexist_dir, ENOENT},
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/*
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* to test whether chdir() is setting EFAULT if the
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* directory is an invalid address.
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*/
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{(void *)-1, EFAULT}
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};
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int flag;
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#define FAILED 1
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void setup(void);
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void cleanup(void) __attribute__((noreturn));
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int
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main(int ac, char **av)
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{
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int lc; /* loop counter */
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int i;
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const char *msg; /* message returned from parse_opts */
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/* parse standard options */
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if ((msg = parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)NULL){
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tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg);
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}
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setup();
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/* set up the expected errnos */
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TEST_EXP_ENOS(exp_enos);
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/* check looping state if -i option is given */
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for (lc = 0; TEST_LOOPING(lc); lc++) {
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/* reset Tst_count in case we are looping */
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Tst_count = 0;
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/* loop through the test cases */
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for (i=0; i<TST_TOTAL; i++) {
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TEST(chdir(TC[i].dname));
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if (TEST_RETURN != -1) {
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tst_resm(TFAIL, "call succeeded unexpectedly");
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continue;
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}
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TEST_ERROR_LOG(TEST_ERRNO);
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if (TEST_ERRNO == TC[i].error) {
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tst_resm(TPASS, "expected failure - "
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"errno = %d : %s", TEST_ERRNO,
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strerror(TEST_ERRNO));
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} else {
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tst_resm(TFAIL, "unexpected error - %d : %s - "
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"expected %d", TEST_ERRNO,
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strerror(TEST_ERRNO), TC[i].error);
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}
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}
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}
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cleanup();
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/*NOTREACHED*/
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}
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/*
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* setup() - performs all ONE TIME setup for this test.
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*/
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void
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setup()
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{
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/* capture signals */
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tst_sig(NOFORK, DEF_HANDLER, cleanup);
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/* Pause if that option was specified */
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TEST_PAUSE;
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/* make a temporary directory and cd to it */
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tst_tmpdir();
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}
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/*
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* cleanup() - performs all ONE TIME cleanup for this test at
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* completion or premature exit.
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*/
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void
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cleanup()
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{
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/*
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* print timing stats if that option was specified.
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* print errno log if that option was specified.
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*/
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TEST_CLEANUP;
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/*
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* Delete the test directory created in setup().
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*/
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tst_rmdir();
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/* exit with return code appropriate for results */
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tst_exit();
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}
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