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git.ipfire.org Git - thirdparty/glibc.git/blob - misc/tst-preadvwritev64.c
1 /* Tests for pread64 and pwrite64.
2 Copyright (C) 2016-2018 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
19 #define _FILE_OFFSET_BITS 64
20 #include "tst-preadvwritev-common.c"
27 ret
= do_test_with_offset (0);
29 /* Create a sparse file larger than 4GB to check if offset is handled
30 correctly in p{write,read}v64. */
31 off_t base_offset
= UINT32_MAX
+ 2048LL;
32 ret
+= do_test_with_offset (base_offset
);
35 if (fstat (temp_fd
, &st
) == -1)
37 printf ("error: fstat on temporary file failed: %m");
41 /* The total size should base_offset plus 2 * 96. */
42 off_t expected_value
= base_offset
+ (2 * (96LL));
43 if (st
.st_size
!= expected_value
)
45 printf ("error: file size different than expected (%jd != %jd)\n",
46 (intmax_t) expected_value
, (intmax_t) st
.st_size
);