/* Check IOV_MAX definition for consistency (bug 22321).

   Copyright (C) 2017-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   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/>.  */

/* Defined in tst-sysconf-iov_max-uapi.c.  */

long uio_maxiov_value (void);

#include <limits.h>

#include <support/check.h>

#include <sys/uio.h>

#include <unistd.h>

static int

do_test (void)

{

  TEST_VERIFY (_XOPEN_IOV_MAX == 16); /* Value required by POSIX.  */

  TEST_VERIFY (uio_maxiov_value () >= _XOPEN_IOV_MAX);

  TEST_VERIFY (IOV_MAX == uio_maxiov_value ());

  TEST_VERIFY (UIO_MAXIOV == uio_maxiov_value ());

  TEST_VERIFY (sysconf (_SC_UIO_MAXIOV) == uio_maxiov_value ());

  TEST_VERIFY (sysconf (_SC_IOV_MAX) == uio_maxiov_value ());

  return 0;

}

#include <support/test-driver.c>