/*

 * OSS-Fuzz target for libmodi file type

 *

 * Copyright (C) 2012-2026, 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_libmodi.h"

#if !defined( LIBMODI_HAVE_BFIO )

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

 * Returns 1 if successful or -1 on error

 */

LIBMODI_EXTERN \

int libmodi_handle_open_file_io_handle(

     libmodi_handle_t *handle,

     libbfio_handle_t *file_io_handle,

     int access_flags,

     libmodi_error_t **error );

#endif /* !defined( LIBMODI_HAVE_BFIO ) */

int LLVMFuzzerTestOneInput(

     const uint8_t *data,

     size_t size )

{

  uint8_t buffer[ 512 ];

  libbfio_handle_t *file_io_handle = NULL;

  libmodi_handle_t *handle         = NULL;

  off64_t media_offset             = 0;

  size64_t media_size              = 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( libmodi_handle_initialize(

       &handle,

       NULL ) != 1 )

  {

    goto on_error_libbfio;

  }

  if( libmodi_handle_open_file_io_handle(

       handle,

       file_io_handle,

       LIBMODI_OPEN_READ,

       NULL ) != 1 )

  {

    goto on_error_libmodi;

  }

  if( libmodi_handle_get_media_size(

       handle,

       &media_size,

       NULL ) != 1 )

  {

    goto on_error_libmodi;

  }

  for( read_iterator = 0;

       read_iterator < 128;

       read_iterator++ )

  {

    if( media_offset >= media_size )

    {

      break;

    }

    if( libmodi_handle_read_buffer_at_offset(

         handle,

         buffer,

         497,

         media_offset,

         NULL ) == -1 )

    {

      goto on_error_libmodi;

    }

    media_offset += 497;

  }

  libmodi_handle_close(

   handle,

   NULL );

on_error_libmodi:

  libmodi_handle_free(

   &handle,

   NULL );

on_error_libbfio:

  libbfio_handle_free(

   &file_io_handle,

   NULL );

  return( 0 );

}

} /* extern "C" */