/* Copyright (C) 2004-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <stdio.h>

#include <string.h>

#include <wchar.h>

static int

do_test (void)

{

  FILE *f = popen ("echo test", "r");

  int result = 0, ret;

  char *line = NULL;

  size_t len = 0;

  if (f == NULL)

    {

      printf ("popen failed %m");

      return 1;

    }

  /* POSIX says that pipe streams are byte-oriented.  */

  if (fwide (f, 0) >= 0)

    {

      puts ("popen did not return byte-oriented stream");

      result = 1;

    }

  if (getline (&line, &len, f) != 5)

    {

      puts ("could not read line from popen");

      result = 1;

    }

  else if (strcmp (line, "test\n") != 0)

    {

      printf ("read \"%s\"\n", line);

      result = 1;

    }

  if (getline (&line, &len, f) != -1)

    {

      puts ("second getline did not return -1");

      result = 1;

    }

  ret = pclose (f);

  if (ret != 0)

    {

      printf ("pclose returned %d\n", ret);

      result = 1;

    }

  return result;

}

#define TEST_FUNCTION do_test ()

#include "../test-skeleton.c"