56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/* Tests for pread64 and pwrite64.
|
|
Copyright (C) 2000-2019 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-preadwrite-common.c"
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
ssize_t ret;
|
|
|
|
ret = do_test_with_offset (0);
|
|
if (ret == -1)
|
|
return 1;
|
|
|
|
/* Create a sparse file larger than 4GB to check if offset is handled
|
|
correctly in p{write,read}64. */
|
|
off_t base_offset = UINT32_MAX + 2048LL;
|
|
ret = do_test_with_offset (base_offset);
|
|
if (ret == -1)
|
|
return 1;
|
|
|
|
struct stat st;
|
|
if (fstat (fd, &st) == -1)
|
|
{
|
|
printf ("error: fstat on temporary file failed: %m");
|
|
return 1;
|
|
}
|
|
|
|
/* The file size should >= base_offset plus bytes read. */
|
|
off_t expected_value = base_offset + ret;
|
|
if (st.st_size < expected_value)
|
|
{
|
|
printf ("error: file size less than expected (%jd > %jd)\n",
|
|
(intmax_t) expected_value, (intmax_t) st.st_size);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|