[Ltp-cvs] ltp/testcases/kernel/syscalls/pipe2 Makefile, NONE, 1.1 pipe2_01.c, NONE, 1.1

[Subrata <sub...@us...>]

Update of /cvsroot/ltp/ltp/testcases/kernel/syscalls/pipe2
In directory ddv4jf1.ch3.sourceforge.com:/tmp/cvs-serv28777/ltp/testcases/kernel/syscalls/pipe2

Added Files:
	Makefile pipe2_01.c 
Log Message:
Add  pipe2_01  syscall  test, testing pipe2(O_CLOEXEC). Signed-Off-By: Subrata Modak<su...@li...>.


--- NEW FILE: Makefile ---
#
#  Copyright (c) International Business Machines  Corp., 2009
#
#  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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#

CFLAGS += -I../../../../include -Wall
LDLIBS += -L../../../../lib -lltp

SRCS    = $(wildcard *.c)
TARGETS = $(patsubst %.c,%,$(SRCS))

all: $(TARGETS)

install:
	@set -e; for i in $(TARGETS); do ln -f $$i ../../../bin/$$i ; done

clean:
	rm -f $(TARGETS)

--- NEW FILE: pipe2_01.c ---
/******************************************************************************/
/*                                                                            */
/* Copyright (c) Ulrich Drepper <dr...@re...>                          */
/* Copyright (c) International Business Machines  Corp., 2009                 */
/*                                                                            */
/* 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    */
/*                                                                            */
/******************************************************************************/
/******************************************************************************/
/*                                                                            */
/* File:        pipe2_01.c                                                    */
/*                                                                            */
/* Description: This Program tests the new system call introduced in 2.6.27.  */
/*              Ulrich´s comment as in:                                       */
/* http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ed8cae8ba01348bfd83333f4648dd807b04d7f08 */
/*              says:                                                         */
/* This patch introduces the new syscall pipe2 which is like pipe but it also */
/* takes an additional parameter which takes a flag value.  This patch        */
/* implements the handling of O_CLOEXEC for the flag.  I did not add support  */
/* for the new syscall for the architectures which have a special sys_pipe    */
/* implementation.  I think the maintainers of those archs have the chance to */
/* go with the unified implementation but that's up to them.                  */
/*                                                                            */
/* The implementation introduces do_pipe_flags.  I did that instead of        */
/* changing all callers of do_pipe because some of the callers are written in */
/* assembler. I would probably screw up changing the assembly code.  To avoid */
/* breaking code do_pipe is now a small wrapper around do_pipe_flags.  Once   */
/* all callers are changed over to do_pipe_flags the old do_pipe function can */
/* be removed.                                                                */
/* The following test must be adjusted for architectures other than x86 and   */
/* x86-64 and in case the syscall numbers changed.                            */
/*                                                                            */
/* Usage:  <for command-line>                                                 */
/* pipe2_01 [-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.                                */
/*                                                                            */
/* Total Tests: 1                                                             */
/*                                                                            */
/* Test Name:   pipe2_01                                                      */
/*                                                                            */
/* Author:      Ulrich Drepper <dr...@re...>                           */
/*                                                                            */
/* History:     Created - Jan 13 2009 - Ulrich Drepper <dr...@re...>   */
/*              Ported to LTP                                                 */
/*                      - Jan 13 2009 - Subrata <su...@li...>  */
/******************************************************************************/
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/syscall.h>

/* Harness Specific Include Files. */
#include "test.h"
#include "usctest.h"

#ifndef O_CLOEXEC
# define O_CLOEXEC 02000000
#endif

#ifndef __NR_pipe2
# ifdef __x86_64__
#  define __NR_pipe2 293
# elif defined __i386__
#  define __NR_pipe2 331
# else
#  error "need __NR_pipe2"
# endif
#endif

/* Extern Global Variables */
extern int  Tst_count;               /* counter for tst_xxx routines.         */
extern char *TESTDIR;                /* temporary dir created by tst_tmpdir() */

/* Global Variables */
char *TCID     = "pipe2_01"; /* test program identifier.              */
int  testno;
int  TST_TOTAL = 1;                  /* total number of tests in this file.   */

/* Extern Global Functions */
/******************************************************************************/
/*                                                                            */
/* Function:    cleanup                                                       */
/*                                                                            */
/* Description: Performs all one time clean up for this test on successful    */
/*              completion,  premature exit or  failure. Closes all temporary */
/*              files, removes all temporary directories exits the test with  */
/*              appropriate return code by calling tst_exit() function.       */
/*                                                                            */
/* Input:       None.                                                         */
/*                                                                            */
/* Output:      None.                                                         */
/*                                                                            */
/* Return:      On failure - Exits calling tst_exit(). Non '0' return code.   */
/*              On success - Exits calling tst_exit(). With '0' return code.  */
/*                                                                            */
/******************************************************************************/
extern void cleanup() {
  /* Remove tmp dir and all files in it */
  TEST_CLEANUP;
  tst_rmdir();

  /* Exit with appropriate return code. */
  tst_exit();
}

/* Local  Functions */
/******************************************************************************/
/*                                                                            */
/* Function:    setup                                                         */
/*                                                                            */
/* Description: Performs all one time setup for this test. This function is   */
/*              typically used to capture signals, create temporary dirs      */
/*              and temporary files that may be used in the course of this    */
/*              test.                                                         */
/*                                                                            */
/* Input:       None.                                                         */
/*                                                                            */
/* Output:      None.                                                         */
/*                                                                            */
/* Return:      On failure - Exits by calling cleanup().                      */
/*              On success - returns 0.                                       */
/*                                                                            */
/******************************************************************************/
void setup() {
  /* Capture signals if any */
  /* Create temporary directories */
  TEST_PAUSE;
  tst_tmpdir();
}

int main (int argc, char *argv[]) {
  int fd[2], i, coe;
  int lc;                 /* loop counter */
  char *msg;              /* message returned from parse_opts */

  /* Parse standard options given to run the test. */
  msg = parse_opts(argc, argv, (option_t *) NULL, NULL);
  if (msg != (char *) NULL) {
      tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
      tst_exit();
  }
  if((tst_kvercmp(2, 6, 27)) < 0) {
                tst_resm(TCONF, "This test can only run on kernels that are 2.6.27 and higher");
                tst_exit();
  }
  setup();

  /* Check looping state if -i option given */
  for (lc = 0; TEST_LOOPING(lc); ++lc) {
       Tst_count = 0;
       for (testno=0; testno < TST_TOTAL; ++testno) {
            if (syscall (__NR_pipe2, fd, 0) != 0) {
                tst_resm(TFAIL, "pipe2(0) failed");
                cleanup();
                tst_exit();
            }
            for (i = 0; i < 2; ++i) {
                 coe = fcntl (fd[i], F_GETFD);
                 if (coe == -1) {
                     tst_brkm(TBROK, cleanup, "fcntl failed");
                     tst_exit();
                 }
                 if (coe & FD_CLOEXEC) {
                     tst_resm(TFAIL, "pipe2(0) set close-on-exit for fd[%d]", i);
                     cleanup();
                     tst_exit();
                 }
            }
            close (fd[0]);
            close (fd[1]);

            if (syscall (__NR_pipe2, fd, O_CLOEXEC) != 0) {
                tst_resm(TFAIL, "pipe2(O_CLOEXEC) failed");
                cleanup();
                tst_exit();
            }
            for ( i = 0; i < 2; ++i) {
                  coe = fcntl (fd[i], F_GETFD);
                  if (coe == -1) {
                      tst_brkm(TBROK, cleanup, "fcntl failed");
                      tst_exit();
                  }
                  if ((coe & FD_CLOEXEC) == 0) {
                       tst_resm(TFAIL, "pipe2(O_CLOEXEC) does not set close-on-exit for fd[%d]", i);
                       cleanup();
                       tst_exit();
                  }
            }
            close (fd[0]);
            close (fd[1]);
            tst_resm(TPASS, "pipe2(O_CLOEXEC) PASSED");
            cleanup();
       }
  }
  tst_exit();
}