/*

 * OSS-Fuzz target for libfsxfs file_entry type

 *

 * Copyright (C) 2020-2023, Joachim Metz <joachim.metz@gmail.com>

 *

 * Refer to AUTHORS for acknowledgements.

 *

 * This program 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 3 of the License, or

 * (at your option) any later version.

 *

 * This program 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 General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public License

 * along with this program.  If not, see <https://www.gnu.org/licenses/>.

 */

#include <stddef.h>

#include <stdint.h>

/* Note that some of the OSS-Fuzz engines use C++

 */

extern "C" {

#include "ossfuzz_libbfio.h"

#include "ossfuzz_libfsxfs.h"

#if !defined( LIBFSXFS_HAVE_BFIO )

/* Opens a volume using a Basic File IO (bfio) handle

 * Returns 1 if successful or -1 on error

 */

LIBFSXFS_EXTERN \

int libfsxfs_volume_open_file_io_handle(

     libfsxfs_volume_t *volume,

     libbfio_handle_t *file_io_handle,

     int access_flags,

     libfsxfs_error_t **error );

#endif /* !defined( LIBFSXFS_HAVE_BFIO ) */

int LLVMFuzzerTestOneInput(

     const uint8_t *data,

     size_t size )

{

  uint8_t string_value[ 64 ];

  libbfio_handle_t *file_io_handle      = NULL;

  libfsxfs_file_entry_t *root_directory = NULL;

  libfsxfs_file_entry_t *sub_file_entry = NULL;

  libfsxfs_volume_t *volume             = NULL;

  size64_t file_size                    = 0;

  size_t string_size                    = 0;

  off64_t file_offset                   = 0;

  uint64_t value_64bit                  = 0;

  int64_t posix_time                    = 0;

  uint32_t major_device_number          = 0;

  uint32_t minor_device_number          = 0;

  uint32_t value_32bit                  = 0;

  uint16_t value_16bit                  = 0;

  int number_of_extents                 = 0;

  int number_of_sub_file_entries        = 0;

  int result                            = 0;

  if( libbfio_memory_range_initialize(

       &file_io_handle,

       NULL ) != 1 )

  {

    return( 0 );

  }

  if( libbfio_memory_range_set(

       file_io_handle,

       (uint8_t *) data,

       size,

       NULL ) != 1 )

  {

    goto on_error_libbfio;

  }

  if( libfsxfs_volume_initialize(

       &volume,

       NULL ) != 1 )

  {

    goto on_error_libbfio;

  }

  if( libfsxfs_volume_open_file_io_handle(

       volume,

       file_io_handle,

       LIBFSXFS_OPEN_READ,

       NULL ) != 1 )

  {

    goto on_error_libfsxfs_volume;

  }

  if( libfsxfs_volume_get_root_directory(

       volume,

       &root_directory,

       NULL ) == 1 )

  {

    if( libfsxfs_file_entry_get_number_of_sub_file_entries(

         root_directory,

         &number_of_sub_file_entries,

         NULL ) != 1 )

    {

      goto on_error_libfsxfs_root_directory;

    }

    if( number_of_sub_file_entries > 0 )

    {

      result = libfsxfs_file_entry_get_sub_file_entry_by_index(

                root_directory,

                0,

                &sub_file_entry,

                NULL );

      if( result != -1 )

      {

        libfsxfs_file_entry_get_inode_number(

         sub_file_entry,

         &value_64bit,

         NULL );

        libfsxfs_file_entry_get_creation_time(

         sub_file_entry,

         &posix_time,

         NULL );

        libfsxfs_file_entry_get_modification_time(

         sub_file_entry,

         &posix_time,

         NULL );

        libfsxfs_file_entry_get_access_time(

         sub_file_entry,

         &posix_time,

         NULL );

        libfsxfs_file_entry_get_inode_change_time(

         sub_file_entry,

         &posix_time,

         NULL );

        libfsxfs_file_entry_get_file_mode(

         sub_file_entry,

         &value_16bit,

         NULL );

        libfsxfs_file_entry_get_number_of_links(

         sub_file_entry,

         &value_32bit,

         NULL );

        libfsxfs_file_entry_get_owner_identifier(

         sub_file_entry,

         &value_32bit,

         NULL );

        libfsxfs_file_entry_get_group_identifier(

         sub_file_entry,

         &value_32bit,

         NULL );

        libfsxfs_file_entry_get_device_identifier(

         sub_file_entry,

         &value_32bit,

         NULL );

        libfsxfs_file_entry_get_device_number(

         sub_file_entry,

         &major_device_number,

         &minor_device_number,

         NULL );

        libfsxfs_file_entry_get_utf8_name_size(

         sub_file_entry,

         &string_size,

         NULL );

        libfsxfs_file_entry_get_utf8_name(

         sub_file_entry,

         string_value,

         64,

         NULL );

        libfsxfs_file_entry_get_utf8_symbolic_link_target_size(

         sub_file_entry,

         &string_size,

         NULL );

        libfsxfs_file_entry_get_utf8_symbolic_link_target(

         sub_file_entry,

         string_value,

         64,

         NULL );

        libfsxfs_file_entry_get_offset(

         sub_file_entry,

         &file_offset,

         NULL );

        libfsxfs_file_entry_get_size(

         sub_file_entry,

         &file_size,

         NULL );

        libfsxfs_file_entry_get_number_of_extents(

         sub_file_entry,

         &number_of_extents,

         NULL );

      }

      libfsxfs_file_entry_free(

       &sub_file_entry,

       NULL );

    }

on_error_libfsxfs_root_directory:

    libfsxfs_file_entry_free(

     &root_directory,

     NULL );

  }

  libfsxfs_volume_close(

   volume,

   NULL );

on_error_libfsxfs_volume:

  libfsxfs_volume_free(

   &volume,

   NULL );

on_error_libbfio:

  libbfio_handle_free(

   &file_io_handle,

   NULL );

  return( 0 );

}

} /* extern "C" */