/*

 * OSS-Fuzz target for libfsapfs file_entry type

 *

 * Copyright (C) 2018-2025, 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_libfsapfs.h"

#if !defined( LIBFSAPFS_HAVE_BFIO )

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

 * Returns 1 if successful or -1 on error

 */

LIBFSAPFS_EXTERN \

int libfsapfs_container_open_file_io_handle(

     libfsapfs_container_t *container,

     libbfio_handle_t *file_io_handle,

     int access_flags,

     libfsapfs_error_t **error );

#endif /* !defined( LIBFSAPFS_HAVE_BFIO ) */

int LLVMFuzzerTestOneInput(

     const uint8_t *data,

     size_t size )

{

  uint8_t string_value[ 64 ];

  libbfio_handle_t *file_io_handle       = NULL;

  libfsapfs_container_t *container       = NULL;

  libfsapfs_file_entry_t *root_directory = NULL;

  libfsapfs_file_entry_t *sub_file_entry = NULL;

  libfsapfs_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 number_of_volumes                  = 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( libfsapfs_container_initialize(

       &container,

       NULL ) != 1 )

  {

    goto on_error_libbfio;

  }

  if( libfsapfs_container_open_file_io_handle(

       container,

       file_io_handle,

       LIBFSAPFS_OPEN_READ,

       NULL ) != 1 )

  {

    goto on_error_libfsapfs_container;

  }

  if( libfsapfs_container_get_number_of_volumes(

       container,

       &number_of_volumes,

       NULL ) != 1 )

  {

    goto on_error_libfsapfs_container;

  }

  if( number_of_volumes > 0 )

  {

    if( libfsapfs_container_get_volume_by_index(

         container,

         0,

         &volume,

         NULL ) != 1 )

    {

      goto on_error_libfsapfs_container;

    }

    if( libfsapfs_volume_get_root_directory(

         volume,

         &root_directory,

         NULL ) == 1 )

    {

      if( libfsapfs_file_entry_get_number_of_sub_file_entries(

           root_directory,

           &number_of_sub_file_entries,

           NULL ) != 1 )

      {

        goto on_error_libfsapfs_root_directory;

      }

      if( number_of_sub_file_entries > 0 )

      {

        result = libfsapfs_file_entry_get_sub_file_entry_by_index(

                  root_directory,

                  0,

                  &sub_file_entry,

                  NULL );

        if( result != -1 )

        {

          libfsapfs_file_entry_get_identifier(

           sub_file_entry,

           &value_64bit,

           NULL );

          libfsapfs_file_entry_get_parent_identifier(

           sub_file_entry,

           &value_64bit,

           NULL );

          libfsapfs_file_entry_get_creation_time(

           sub_file_entry,

           &posix_time,

           NULL );

          libfsapfs_file_entry_get_modification_time(

           sub_file_entry,

           &posix_time,

           NULL );

          libfsapfs_file_entry_get_access_time(

           sub_file_entry,

           &posix_time,

           NULL );

          libfsapfs_file_entry_get_inode_change_time(

           sub_file_entry,

           &posix_time,

           NULL );

          libfsapfs_file_entry_get_added_time(

           sub_file_entry,

           &posix_time,

           NULL );

          libfsapfs_file_entry_get_file_mode(

           sub_file_entry,

           &value_16bit,

           NULL );

          libfsapfs_file_entry_get_number_of_links(

           sub_file_entry,

           &value_32bit,

           NULL );

          libfsapfs_file_entry_get_owner_identifier(

           sub_file_entry,

           &value_32bit,

           NULL );

          libfsapfs_file_entry_get_group_identifier(

           sub_file_entry,

           &value_32bit,

           NULL );

          libfsapfs_file_entry_get_device_identifier(

           sub_file_entry,

           &value_32bit,

           NULL );

          libfsapfs_file_entry_get_device_number(

           sub_file_entry,

           &major_device_number,

           &minor_device_number,

           NULL );

          libfsapfs_file_entry_get_utf8_name_size(

           sub_file_entry,

           &string_size,

           NULL );

          libfsapfs_file_entry_get_utf8_name(

           sub_file_entry,

           string_value,

           64,

           NULL );

          libfsapfs_file_entry_get_utf8_symbolic_link_target_size(

           sub_file_entry,

           &string_size,

           NULL );

          libfsapfs_file_entry_get_utf8_symbolic_link_target(

           sub_file_entry,

           string_value,

           64,

           NULL );

          libfsapfs_file_entry_get_offset(

           sub_file_entry,

           &file_offset,

           NULL );

          libfsapfs_file_entry_get_size(

           sub_file_entry,

           &file_size,

           NULL );

          libfsapfs_file_entry_get_number_of_extents(

           sub_file_entry,

           &number_of_extents,

           NULL );

        }

        libfsapfs_file_entry_free(

         &sub_file_entry,

         NULL );

      }

on_error_libfsapfs_root_directory:

      libfsapfs_file_entry_free(

       &root_directory,

       NULL );

    }

    libfsapfs_volume_free(

     &volume,

     NULL );

  }

on_error_libfsapfs_container:

  libfsapfs_container_free(

   &container,

   NULL );

on_error_libbfio:

  libbfio_handle_free(

   &file_io_handle,

   NULL );

  return( 0 );

}

} /* extern "C" */