/*

 * Restart data functions

 *

 * Copyright (C) 2006-2023, 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 <common.h>

#include <memory.h>

#include <types.h>

#include "libewf_libcerror.h"

#include "libewf_libcnotify.h"

#include "libewf_libuna.h"

#include "libewf_restart_data.h"

/* Parses EWF version 2 restart data

 * Returns 1 if successful or -1 on error

 */

int libewf_restart_data_parse(

     const uint8_t *restart_data,

     size_t restart_data_size,

     libcerror_error_t **error )

{

  uint8_t *restart_data_string    = NULL;

  static char *function           = "libewf_restart_data_parse";

  size_t restart_data_string_size = 0;

  if( restart_data == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid restart data.",

     function );

    return( -1 );

  }

  if( libuna_utf8_string_size_from_utf16_stream(

       restart_data,

       restart_data_size,

       0,

       &restart_data_string_size,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_CONVERSION,

     LIBCERROR_CONVERSION_ERROR_GENERIC,

     "%s: unable to determine restart data string size.",

     function );

    goto on_error;

  }

  if( ( restart_data_string_size == 0 )

   || ( restart_data_string_size > MEMORY_MAXIMUM_ALLOCATION_SIZE ) )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

     "%s: invalid restart data string size value out of bounds.",

     function );

    goto on_error;

  }

  restart_data_string = (uint8_t *) memory_allocate(

                                     sizeof( uint8_t ) * restart_data_string_size );

  if( restart_data_string == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,

     "%s: unable to create restart data string.",

     function );

    goto on_error;

  }

  if( libuna_utf8_string_copy_from_utf16_stream(

       restart_data_string,

       restart_data_string_size,

       restart_data,

       restart_data_size,

       0,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_COPY_FAILED,

     "%s: unable to set restart data string.",

     function );

    goto on_error;

  }

#if defined( HAVE_DEBUG_OUTPUT )

  if( libcnotify_verbose != 0 )

  {

    libcnotify_printf(

    "%s: restart data string:\n%s",

     function,

     restart_data_string );

  }

#endif

/* TODO

  if( libewf_restart_data_parse_string(

       restart_data_string,

       restart_data_string_size,

       media_values,

       header_values,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_CONVERSION,

     LIBCERROR_CONVERSION_ERROR_GENERIC,

     "%s: unable to parse restart data string.",

     function );

    goto on_error;

  }

*/

  memory_free(

   restart_data_string );

  return( 1 );

on_error:

  if( restart_data_string != NULL )

  {

    memory_free(

     restart_data_string );

  }

  return( -1 );

}