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/* Common posix_fallocate tests definitions.
Copyright (C) 2016-2023 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
<https://www.gnu.org/licenses/>. */
#include <fcntl.h>
#include <limits.h>
#include <stdint.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <support/support.h>
#include <support/check.h>
#include <support/temp_file.h>
static char *temp_filename;
static int temp_fd;
static void
do_prepare (int argc, char **argv)
{
temp_fd = create_temp_file ("tst-posix_fallocate.", &temp_filename);
if (temp_fd == -1)
FAIL_EXIT1 ("cannot create temporary file: %m\n");
}
#define PREPARE do_prepare
static int
do_test_with_offset (off_t offset)
{
struct stat st;
if (posix_fallocate (temp_fd, offset, 768) != 0)
FAIL_EXIT1 ("1st posix_fallocate call failed");
if (fstat (temp_fd, &st) != 0)
FAIL_EXIT1 ("2nd fstat failed");
if (st.st_size != (offset + 768))
FAIL_EXIT1 ("file size after first posix_fallocate call is %lu, "
"expected %lu",
(unsigned long int) st.st_size, 512lu + 768lu);
if (posix_fallocate (temp_fd, 0, 1024) != 0)
FAIL_EXIT1 ("2nd posix_fallocate call failed");
if (fstat (temp_fd, &st) != 0)
FAIL_EXIT1 ("3rd fstat failed");
if (st.st_size != (offset) + 768)
FAIL_EXIT1 ("file size changed in second posix_fallocate");
offset += 2048;
if (posix_fallocate (temp_fd, offset, 64) != 0)
FAIL_EXIT1 ("3rd posix_fallocate call failed");
if (fstat (temp_fd, &st) != 0)
FAIL_EXIT1 ("4th fstat failed");
if (st.st_size != (offset + 64))
FAIL_EXIT1 ("file size after first posix_fallocate call is %llu, "
"expected %u",
(unsigned long long int) st.st_size, 2048u + 64u);
return 0;
}
/* This function is defined by the individual tests. */
static int do_test (void);
#include <support/test-driver.c>
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