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 /* SPDX-License-Identifier: BSD-2-Clause */
 
 /*
  * Copyright (c) 2012 embedded brains GmbH & Co. KG
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
 #include "tmacros.h"
 
 #include <sys/stat.h>
 #include <errno.h>
 #include <string.h>
 #include <stdint.h>
 #include <unistd.h>
 #include <fcntl.h>
 
 #include <rtems/libio.h>
 #include <rtems/blkdev.h>
 #include <rtems/dosfs.h>
 #include <rtems/ramdisk.h>
 
 const char rtems_test_name[] = "FSDOSFSSYNC 1";
 
 static void create_file(const char *file)
 {
   int fd;
   int rv;
 
   fd = creat(file, S_IRWXU | S_IRWXG | S_IRWXO);
   rtems_test_assert(fd >= 0);
 
   rv = fsync(fd);
   rtems_test_assert(rv == 0);
 
   rv = close(fd);
   rtems_test_assert(rv == 0);
 }
 
 static void write_to_file(const char *file, bool sync)
 {
   int fd;
   char buf [1];
   ssize_t n;
   off_t pos;
   int rv;
 
   fd = open(file, O_RDWR);
   rtems_test_assert(fd >= 0);
 
   n = write(fd, buf, sizeof(buf));
   rtems_test_assert(n == (ssize_t) sizeof(buf));
 
   pos = lseek(fd, 0, SEEK_END);
   rtems_test_assert(pos == sizeof(buf));
 
   if (sync) {
     rv = fsync(fd);
     rtems_test_assert(rv == 0);
   }
 
   rv = close(fd);
   rtems_test_assert(rv == 0);
 }
 
 static void check_file_size(const char *file, off_t size)
 {
   int fd;
   off_t pos;
   int rv;
 
   fd = open(file, O_RDWR);
   rtems_test_assert(fd >= 0);
 
   pos = lseek(fd, 0, SEEK_END);
   rtems_test_assert(pos == size);
 
   rv = close(fd);
   rtems_test_assert(rv == 0);
 }
 
 static void test(const char *rda, const char *mnt, const char *file)
 {
   static const msdos_format_request_param_t rqdata = {
     .quick_format = true,
     .sync_device = true
   };
 
   int disk_fd;
   int rv;
 
   disk_fd = open(rda, O_RDWR);
   rtems_test_assert(disk_fd >= 0);
 
   rv = msdos_format(rda, &rqdata);
   rtems_test_assert(rv == 0);
 
   rv = mount_and_make_target_path(
     rda,
     mnt,
     RTEMS_FILESYSTEM_TYPE_DOSFS,
     RTEMS_FILESYSTEM_READ_WRITE,
     NULL
   );
   rtems_test_assert(rv == 0);
 
   create_file(file);
   rv = rtems_disk_fd_purge(disk_fd);
   rtems_test_assert(rv == 0);
 
   write_to_file(file, false);
   rv = rtems_disk_fd_purge(disk_fd);
   rtems_test_assert(rv == 0);
   check_file_size(file, 0);
 
   write_to_file(file, true);
   rv = rtems_disk_fd_purge(disk_fd);
   rtems_test_assert(rv == 0);
   check_file_size(file, 1);
 
   rv = unmount(mnt);
   rtems_test_assert(rv == 0);
 
   rv = close(disk_fd);
   rtems_test_assert(rv == 0);
 }
 
 static void Init(rtems_task_argument arg)
 {
   TEST_BEGIN();
 
   test("/dev/rda", "/mnt", "/mnt/file");
 
   TEST_END();
   rtems_test_exit(0);
 }
 
 rtems_ramdisk_config rtems_ramdisk_configuration [] = {
   { .block_size = 512, .block_num = 1024 }
 };
 
 size_t rtems_ramdisk_configuration_size = 1;
 
 #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
 #define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
 #define CONFIGURE_APPLICATION_EXTRA_DRIVERS RAMDISK_DRIVER_TABLE_ENTRY
 #define CONFIGURE_APPLICATION_NEEDS_LIBBLOCK
 
 #define CONFIGURE_MAXIMUM_FILE_DESCRIPTORS 6
 
 #define CONFIGURE_FILESYSTEM_DOSFS
 
 #define CONFIGURE_MAXIMUM_TASKS 2
 
 #define CONFIGURE_EXTRA_TASK_STACKS (8 * 1024)
 
 #define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
 
 #define CONFIGURE_RTEMS_INIT_TASKS_TABLE
 
 #define CONFIGURE_INIT_TASK_ATTRIBUTES RTEMS_FLOATING_POINT
 
 #define CONFIGURE_INIT
 
 #include <rtems/confdefs.h>

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