/* Tests for pread64 and pwrite64.

   Copyright (C) 2016-2018 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/>.  */

#define _FILE_OFFSET_BITS 64

#include "tst-preadvwritev-common.c"

static int

do_test (void)

{

  int ret;

  ret = do_test_with_offset (0);

  /* Create a sparse file larger than 4GB to check if offset is handled

     correctly in p{write,read}v64. */

  off_t base_offset = UINT32_MAX + 2048LL;

  ret += do_test_with_offset (base_offset);

  struct stat st;

  if (fstat (temp_fd, &st) == -1)

    {

      printf ("error: fstat on temporary file failed: %m");

      return 1;

    }

  /* The total size should base_offset plus 2 * 96.  */

  off_t expected_value = base_offset + (2 * (96LL));

  if (st.st_size != expected_value)

    {

      printf ("error: file size different than expected (%jd != %jd)\n",

	      (intmax_t) expected_value, (intmax_t) st.st_size);

      return 1;

    }

  return ret;

}