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/* SPDX-License-Identifier: BSD-2-Clause */

/*
 *  COPYRIGHT (c) 1989-2012.
 *  On-Line Applications Research Corporation (OAR).
 *
 * 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 <bsp.h> /* for device driver prototypes */
#include "tmacros.h"
#include <rtems/imfs.h>
#include <rtems/error.h>

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>

#include "tar02-tar.h"

const char rtems_test_name[] = "TAR 2";

/* forward declarations to avoid warnings */
rtems_task Init(rtems_task_argument argument);
void test_tarfs_load(void);

#define TARFILE_START tar01_tar
#define TARFILE_SIZE  tar01_tar_size

static const char file[] = "/home/test_file";

static const char content_0[] =
  "This is a test of loading an RTEMS filesystem from an\n"
  "initial tar image.\n";

static const char content_1[] =
  "This is a test of loading an RTEMS filesystem from an\n"
  "initial tar image.\n"
  "And some other stuff.\n";

static char buf[sizeof(content_1) - 1];

static void check_file(
  const char *file,
  const char *expected_content,
  char *buf,
  size_t size
)
{
  int fd;
  ssize_t n;
  int rv;

  fd = open(file, O_RDONLY);
  rtems_test_assert(fd >= 0);

  n = read(fd, buf, size);
  rtems_test_assert(n == (ssize_t) size);

  rtems_test_assert(memcmp(expected_content, buf, size) == 0);

  rv = close(fd);
  rtems_test_assert(rv == 0);
}

static void write_file(
  const char *file,
  const char *content,
  size_t size
)
{
  int fd;
  ssize_t n;
  int rv;

  fd = open(file, O_WRONLY);
  rtems_test_assert(fd >= 0);

  n = write(fd, content, size);
  rtems_test_assert(n == (ssize_t) size);

  rv = close(fd);
  rtems_test_assert(rv == 0);
}

/* FIXME */
void test_cat(
  const char *file,
  int         offset_arg,
  int         length
);

void test_tarfs_load(void)
{
  rtems_status_code sc;

  printf("Loading tarfs image ... ");
  sc = rtems_tarfs_load("/",(void *)TARFILE_START, TARFILE_SIZE);
  if (sc != RTEMS_SUCCESSFUL) {
    printf ("error: untar failed: %s\n", rtems_status_text (sc));
    exit(1);
  }
  printf ("successful\n");

  /******************/
  printf( "========= /home/test_file =========\n" );
  test_cat(&file[0], 0, 0);
  check_file(&file[0], &content_0[0], &buf[0], sizeof(content_0) - 1);
  write_file(&file[0], &content_1[0], sizeof(content_1) - 1);
  check_file(&file[0], &content_1[0], &buf[0], sizeof(content_1) - 1);

  /******************/
  printf( "========= /symlink =========\n" );
  test_cat( "/symlink", 0, 0 );
}

rtems_task Init(
  rtems_task_argument ignored
)
{
  TEST_BEGIN();

  test_tarfs_load();

  TEST_END();
  exit( 0 );
}


/* NOTICE: the clock driver is explicitly disabled */
#define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER

#define CONFIGURE_MAXIMUM_TASKS            1
#define CONFIGURE_MAXIMUM_FILE_DESCRIPTORS 5

#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION

#define CONFIGURE_RTEMS_INIT_TASKS_TABLE

#define CONFIGURE_INIT
#include <rtems/confdefs.h>