149 lines
3.4 KiB
C
149 lines
3.4 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* NAME
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* chroot02.c
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*
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* DESCRIPTION
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* Test functionality of chroot(2)
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*
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* ALGORITHM
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* Change root directory and then stat a file.
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*
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* USAGE: <for command-line>
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* chroot02 [-c n] [-f] [-i n] [-I x] [-P x] [-t]
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* where, -c n : Run n copies concurrently.
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* -f : Turn off functionality Testing.
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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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* 04/2003 Modified by Manoj Iyer - manjo@mail.utexas.edu
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* Change testcase to chroot into a temporary directory
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* and stat() a known file.
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*
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* RESTRICTIONS
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* NONE
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <errno.h>
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#include "test.h"
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#include <fcntl.h>
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char *TCID = "chroot02";
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int TST_TOTAL = 1;
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int fileHandle = 0;
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#define TMP_FILENAME "chroot02_testfile"
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struct stat buf;
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void setup(void);
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void cleanup(void);
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int main(int ac, char **av)
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{
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int lc;
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int pid, status, retval;
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tst_parse_opts(ac, av, NULL, NULL);
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setup();
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/* Check for 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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if ((pid = FORK_OR_VFORK()) == -1) {
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tst_brkm(TBROK, cleanup, "Could not fork");
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}
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if (pid == 0) {
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retval = 0;
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if (chroot(tst_get_tmpdir()) == -1) {
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perror("chroot failed");
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retval = 1;
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} else {
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if (stat("/" TMP_FILENAME, &buf) == -1) {
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retval = 1;
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perror("stat failed");
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}
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}
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exit(retval);
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}
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/* parent */
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wait(&status);
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/* make sure the child returned a good exit status */
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if (WIFSIGNALED(status) ||
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(WIFEXITED(status) && WEXITSTATUS(status) != 0))
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tst_resm(TFAIL, "chroot functionality incorrect");
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else
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tst_resm(TPASS, "chroot functionality correct");
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}
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cleanup();
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tst_exit();
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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 setup(void)
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{
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tst_require_root();
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tst_tmpdir();
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if ((fileHandle = creat(TMP_FILENAME, 0777)) == -1)
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tst_brkm(TBROK, cleanup, "failed to create temporary file "
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TMP_FILENAME);
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if (stat(TMP_FILENAME, &buf) != 0)
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tst_brkm(TBROK, cleanup, TMP_FILENAME " does not exist");
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tst_sig(FORK, DEF_HANDLER, cleanup);
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TEST_PAUSE;
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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 cleanup(void)
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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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close(fileHandle);
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tst_rmdir();
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}
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