/*

 * OSS-Fuzz target for libewf file type

 *

 * Copyright (C) 2006-2026, 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_libewf.h"

#if !defined( LIBEWF_HAVE_BFIO )

/* Opens a set of EWF file(s) using a Basic File IO (bfio) pool

 * Returns 1 if successful or -1 on error

 */

LIBEWF_EXTERN \

int libewf_handle_open_file_io_pool(

     libewf_handle_t *handle,

     libbfio_pool_t *file_io_pool,

     int access_flags,

     libewf_error_t **error );

#endif /* !defined( LIBEWF_HAVE_BFIO ) */

int LLVMFuzzerTestOneInput(

     const uint8_t *data,

     size_t size )

{

  uint8_t buffer[ 512 ];

  uint8_t guid[ 16 ];

  libbfio_handle_t *file_io_handle = NULL;

  libbfio_pool_t *file_io_pool     = NULL;

  libewf_handle_t *handle          = NULL;

  off64_t media_offset             = 0;

  size64_t media_size              = 0;

  uint64_t value_64bit             = 0;

  uint32_t value_32bit             = 0;

  uint16_t value_16bit             = 0;

  uint8_t major_version            = 0;

  uint8_t minor_version            = 0;

  uint8_t value_8bit               = 0;

  int8_t compression_level         = 0;

  int entry_index                  = 0;

  int read_iterator                = 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( libbfio_pool_initialize(

       &file_io_pool,

       0,

       0,

       NULL ) != 1 )

  {

    goto on_error_libbfio;

  }

  if( libbfio_pool_append_handle(

       file_io_pool,

       &entry_index,

       file_io_handle,

       LIBBFIO_OPEN_READ,

       NULL ) != 1 )

  {

    goto on_error_libbfio;

  }

  /* The file IO pool takes over management of the file IO handle

   */

  file_io_handle = NULL;

  if( libewf_handle_initialize(

       &handle,

       NULL ) != 1 )

  {

    goto on_error_libbfio;

  }

  if( libewf_handle_open_file_io_pool(

       handle,

       file_io_pool,

       LIBEWF_OPEN_READ,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_segment_files_corrupted(

       handle,

       NULL ) == -1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_segment_files_encrypted(

       handle,

       NULL ) == -1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_bytes_per_sector(

       handle,

       &value_32bit,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_sectors_per_chunk(

       handle,

       &value_32bit,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_number_of_sectors(

       handle,

       &value_64bit,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_chunk_size(

       handle,

       (size32_t *) &value_32bit,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_error_granularity(

       handle,

       &value_32bit,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_compression_method(

       handle,

       &value_16bit,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_compression_values(

       handle,

       &compression_level,

       &value_8bit,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_media_type(

       handle,

       &value_8bit,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_media_flags(

       handle,

       &value_8bit,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_format(

       handle,

       &value_8bit,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_segment_file_version(

       handle,

       &major_version,

       &minor_version,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_segment_file_set_identifier(

       handle,

       guid,

       16,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_md5_hash(

       handle,

       buffer,

       16,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_sha1_hash(

       handle,

       buffer,

       20,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_number_of_acquiry_errors(

       handle,

       &value_32bit,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_number_of_sessions(

       handle,

       &value_32bit,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_number_of_tracks(

       handle,

       &value_32bit,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  if( libewf_handle_get_media_size(

       handle,

       &media_size,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  for( read_iterator = 0;

       read_iterator < 128;

       read_iterator++ )

  {

    if( media_offset >= media_size )

    {

      break;

    }

    if( libewf_handle_read_buffer_at_offset(

         handle,

         buffer,

         497,

         media_offset,

         NULL ) == -1 )

    {

      goto on_error_libewf;

    }

    media_offset += 497;

  }

  if( libewf_handle_get_number_of_checksum_errors(

       handle,

       &value_32bit,

       NULL ) != 1 )

  {

    goto on_error_libewf;

  }

  libewf_handle_close(

   handle,

   NULL );

on_error_libewf:

  libewf_handle_free(

   &handle,

   NULL );

on_error_libbfio:

  /* Note that on error the handle still has a reference to file_io_pool

   * that will be closed. Therefore the file IO pool and handle need to

   * be freed after closing or freeing the handle.

   */

  if( file_io_pool != NULL )

  {

    libbfio_pool_free(

     &file_io_pool,

     NULL );

  }

  if( file_io_handle != NULL )

  {

    libbfio_handle_free(

     &file_io_handle,

     NULL );

  }

  return( 0 );

}

} /* extern "C" */