187 lines
9.4 KiB
C
187 lines
9.4 KiB
C
/******************************************************************************/
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/* */
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/* Copyright (c) Ulrich Drepper <drepper@redhat.com> */
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/* Copyright (c) International Business Machines Corp., 2009 */
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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: pipe2_01.c */
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/* */
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/* Description: This Program tests the new system call introduced in 2.6.27. */
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/* Ulrich´s comment as in: */
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/* http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ed8cae8ba01348bfd83333f4648dd807b04d7f08 */
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/* says: */
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/* This patch introduces the new syscall pipe2 which is like pipe but it also */
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/* takes an additional parameter which takes a flag value. This patch */
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/* implements the handling of O_CLOEXEC for the flag. I did not add support */
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/* for the new syscall for the architectures which have a special sys_pipe */
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/* implementation. I think the maintainers of those archs have the chance to */
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/* go with the unified implementation but that's up to them. */
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/* */
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/* The implementation introduces do_pipe_flags. I did that instead of */
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/* changing all callers of do_pipe because some of the callers are written in */
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/* assembler. I would probably screw up changing the assembly code. To avoid */
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/* breaking code do_pipe is now a small wrapper around do_pipe_flags. Once */
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/* all callers are changed over to do_pipe_flags the old do_pipe function can */
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/* be removed. */
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/* The following test must be adjusted for architectures other than x86 and */
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/* x86-64 and in case the syscall numbers changed. */
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/* */
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/* Usage: <for command-line> */
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/* pipe2_01 [-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: 1 */
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/* */
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/* Test Name: pipe2_01 */
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/* */
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/* Author: Ulrich Drepper <drepper@redhat.com> */
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/* */
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/* History: Created - Jan 13 2009 - Ulrich Drepper <drepper@redhat.com> */
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/* Ported to LTP */
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/* - Jan 13 2009 - Subrata <subrata@linux.vnet.ibm.com> */
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/******************************************************************************/
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#include <fcntl.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/syscall.h>
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#include <errno.h>
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#include "test.h"
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#include "lapi/fcntl.h"
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#include "lapi/syscalls.h"
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char *TCID = "pipe2_01";
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int testno;
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int TST_TOTAL = 1;
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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 return 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' return code. */
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/* On success - Exits calling tst_exit(). With '0' return 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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}
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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 - returns 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 argc, char *argv[])
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{
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int fd[2], i, coe;
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int lc;
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tst_parse_opts(argc, argv, NULL, NULL);
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if ((tst_kvercmp(2, 6, 27)) < 0) {
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tst_brkm(TCONF,
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NULL,
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"This test can only run on kernels that are 2.6.27 and higher");
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}
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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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if (ltp_syscall(__NR_pipe2, fd, 0) != 0) {
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tst_brkm(TFAIL, cleanup, "pipe2(0) failed");
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}
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for (i = 0; i < 2; ++i) {
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coe = fcntl(fd[i], F_GETFD);
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if (coe == -1) {
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tst_brkm(TBROK, cleanup,
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"fcntl failed");
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}
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if (coe & FD_CLOEXEC) {
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tst_brkm(TFAIL,
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cleanup, "pipe2(0) set close-on-exit for fd[%d]",
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i);
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}
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}
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close(fd[0]);
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close(fd[1]);
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if (ltp_syscall(__NR_pipe2, fd, O_CLOEXEC) != 0) {
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tst_brkm(TFAIL, cleanup,
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"pipe2(O_CLOEXEC) failed");
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}
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for (i = 0; i < 2; ++i) {
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coe = fcntl(fd[i], F_GETFD);
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if (coe == -1) {
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tst_brkm(TBROK, cleanup,
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"fcntl failed");
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}
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if ((coe & FD_CLOEXEC) == 0) {
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tst_brkm(TFAIL,
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cleanup, "pipe2(O_CLOEXEC) does not set close-on-exit for fd[%d]",
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i);
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}
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}
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close(fd[0]);
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close(fd[1]);
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tst_resm(TPASS, "pipe2(O_CLOEXEC) PASSED");
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cleanup();
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}
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}
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tst_exit();
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}
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