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219 lines
6.2 KiB
219 lines
6.2 KiB
/******************************************************************************/
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/* Copyright (c) Crackerjack Project., 2007 */
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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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/******************************************************************************/
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/* */
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/* File: unshare02.c */
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/* */
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/* Description: This tests the unshare error() syscall */
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/* */
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/* Usage: <for command-line> */
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/* unshare02 [-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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/* Total Tests: 2 */
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/* */
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/* Test Name: unshare02 */
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/* History: Porting from Crackerjack to LTP is done by */
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/* Manas Kumar Nayak maknayak@in.ibm.com> */
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/******************************************************************************/
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <sys/wait.h>
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#include <sys/types.h>
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#include <sched.h>
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#include <limits.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/syscall.h>
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#include <errno.h>
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#include <pwd.h>
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#include <grp.h>
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#include <string.h>
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#include <sys/param.h>
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#include <stdio.h>
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#include "test.h"
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#include "safe_macros.h"
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#include "config.h"
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char *TCID = "unshare02";
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int testno;
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int TST_TOTAL = 2;
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#ifdef HAVE_UNSHARE
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/* Extern Global Functions */
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/******************************************************************************/
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/* */
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/* Function: cleanup */
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/* */
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/* Description: Performs all one time clean up for this test on successful */
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/* completion, premature exit or failure. Closes all temporary */
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/* files, removes all temporary directories exits the test with */
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/* appropriate TEST_RETURNurn code by calling tst_exit() function. */
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/* */
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/* Input: None. */
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/* */
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/* Output: None. */
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/* */
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/* Return: On failure - Exits calling tst_exit(). Non '0' TEST_RETURNurn code. */
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/* On success - Exits calling tst_exit(). With '0' TEST_RETURNurn code. */
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/* */
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/******************************************************************************/
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void cleanup(void)
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{
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tst_rmdir();
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/* Exit with appropriate TEST_RETURNurn code. */
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}
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/* Local Functions */
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/******************************************************************************/
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/* */
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/* Function: setup */
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/* */
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/* Description: Performs all one time setup for this test. This function is */
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/* typically used to capture signals, create temporary dirs */
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/* and temporary files that may be used in the course of this */
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/* test. */
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/* */
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/* Input: None. */
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/* */
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/* Output: None. */
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/* */
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/* Return: On failure - Exits by calling cleanup(). */
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/* On success - TEST_RETURNurns 0. */
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/* */
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/******************************************************************************/
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void setup(void)
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{
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/* Capture signals if any */
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/* Create temporary directories */
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TEST_PAUSE;
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tst_tmpdir();
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}
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int main(int ac, char **av)
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{
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pid_t pid1;
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int lc;
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int rval;
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tst_parse_opts(ac, av, NULL, NULL);
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setup();
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for (lc = 0; TEST_LOOPING(lc); ++lc) {
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tst_count = 0;
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for (testno = 0; testno < TST_TOTAL; ++testno) {
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TEST(pid1 = fork()); //call to fork()
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if (TEST_RETURN == -1) {
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tst_brkm(TFAIL | TTERRNO, cleanup,
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"fork() failed.");
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} else if (TEST_RETURN == 0) {
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TEST_RETURN = unshare(-1);
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if (TEST_RETURN == 0) {
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printf("Call unexpectedly succeeded\n");
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rval = 1;
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} else if (TEST_RETURN == -1) {
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if (errno == EINVAL) {
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printf("Got EINVAL\n");
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rval = 0;
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} else if (errno == ENOSYS) {
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rval = 1;
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} else {
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perror("unshare failed");
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rval = 2;
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}
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}
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exit(rval);
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} else {
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SAFE_WAIT(cleanup, &rval);
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if (rval != 0 && WIFEXITED(rval)) {
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switch (WEXITSTATUS(rval)) {
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case 1:
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tst_brkm(TBROK, cleanup,
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"unshare call unsupported "
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"in kernel");
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break;
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case 2:
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tst_brkm(TFAIL, cleanup,
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"unshare call failed");
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break;
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}
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}
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}
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TEST(pid1 = fork()); //call to fork()
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if (pid1 == -1) {
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tst_brkm(TFAIL | TTERRNO, cleanup,
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"fork() failed.");
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} else if (TEST_RETURN == 0) {
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TEST_RETURN = unshare(0);
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if (TEST_RETURN == 0) {
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tst_resm(TPASS, "Call succeeded");
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rval = 0;
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} else if (TEST_RETURN == -1) {
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if (errno == ENOSYS)
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rval = 1;
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else {
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perror("unshare failed");
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rval = 2;
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}
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}
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exit(rval);
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} else {
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SAFE_WAIT(cleanup, &rval);
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if (rval != 0 && WIFEXITED(rval)) {
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switch (WEXITSTATUS(rval)) {
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case 1:
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tst_brkm(TBROK, cleanup,
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"unshare call unsupported "
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"in kernel");
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break;
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case 2:
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tst_brkm(TFAIL, cleanup,
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"unshare call failed");
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break;
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}
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}
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}
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}
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}
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cleanup();
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tst_exit();
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}
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#else
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int main(void)
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{
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tst_brkm(TCONF, NULL, "unshare is undefined.");
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}
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#endif
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