/src/libevtx/libfwevt/libfwevt_xml_value.c

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/*
 * XML value functions
 *
 * Copyright (C) 2011-2024, 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 <byte_stream.h>
#include <memory.h>
#include <narrow_string.h>
#include <system_string.h>
#include <types.h>
#include <wide_string.h>

#include "libfwevt_data_segment.h"
#include "libfwevt_date_time.h"
#include "libfwevt_definitions.h"
#include "libfwevt_floating_point.h"
#include "libfwevt_integer.h"
#include "libfwevt_libcdata.h"
#include "libfwevt_libcerror.h"
#include "libfwevt_libfdatetime.h"
#include "libfwevt_libfguid.h"
#include "libfwevt_libfwnt.h"
#include "libfwevt_libuna.h"
#include "libfwevt_types.h"
#include "libfwevt_xml_string.h"
#include "libfwevt_xml_value.h"

/* Creates a XML value
 * Make sure the value xml_value is referencing, is set to NULL
 * Returns 1 if successful or -1 on error
 */
int libfwevt_xml_value_initialize(
     libfwevt_xml_value_t **xml_value,
     uint8_t value_type,
     libcerror_error_t **error )
{
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  static char *function                             = "libfwevt_xml_value_initialize";

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  if( *xml_value != NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
     "%s: invalid XML value already set.",
     function );

    return( -1 );
  }
  internal_xml_value = memory_allocate_structure(
                        libfwevt_internal_xml_value_t );

  if( internal_xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
     "%s: unable to create XML value.",
     function );

    goto on_error;
  }
  if( memory_set(
       internal_xml_value,
       0,
       sizeof( libfwevt_internal_xml_value_t ) ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_SET_FAILED,
     "%s: unable to clear XML value.",
     function );

    memory_free(
     internal_xml_value );

    return( -1 );
  }
  if( libcdata_array_initialize(
       &( internal_xml_value->data_segments ),
       0,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
     "%s: unable to create data segments array.",
     function );

    goto on_error;
  }
  internal_xml_value->value_type = value_type;

  *xml_value = (libfwevt_xml_value_t *) internal_xml_value;

  return( 1 );

on_error:
  if( internal_xml_value != NULL )
  {
    memory_free(
     internal_xml_value );
  }
  return( -1 );
}

/* Frees a XML value
 * Returns 1 if successful or -1 on error
 */
int libfwevt_xml_value_free(
     libfwevt_xml_value_t **xml_value,
     libcerror_error_t **error )
{
  static char *function = "libfwevt_xml_value_free";

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  if( *xml_value != NULL )
  {
    *xml_value = NULL;
  }
  return( 1 );
}

/* Frees a XML value
 * Returns 1 if successful or -1 on error
 */
int libfwevt_internal_xml_value_free(
     libfwevt_internal_xml_value_t **internal_xml_value,
     libcerror_error_t **error )
{
  static char *function = "libfwevt_internal_xml_value_free";
  int result            = 1;

  if( internal_xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  if( *internal_xml_value != NULL )
  {
    if( libcdata_array_free(
         &( ( *internal_xml_value )->data_segments ),
         (int (*)(intptr_t **, libcerror_error_t **)) &libfwevt_data_segment_free,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
       "%s: unable to free data segments array.",
       function );

      result = -1;
    }
    memory_free(
     *internal_xml_value );

    *internal_xml_value = NULL;
  }
  return( result );
}

/* Retrieves the value type
 * Returns 1 if successful or -1 on error
 */
int libfwevt_xml_value_get_type(
     libfwevt_xml_value_t *xml_value,
     uint8_t *value_type,
     libcerror_error_t **error )
{
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  static char *function                             = "libfwevt_xml_value_get_type";

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  internal_xml_value = (libfwevt_internal_xml_value_t *) xml_value;

  if( value_type == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid value type.",
     function );

    return( -1 );
  }
  *value_type = internal_xml_value->value_type;

  return( 1 );
}

/* Retrieves the number of data segments
 * Returns 1 if successful or -1 on error
 */
int libfwevt_xml_value_get_number_of_data_segments(
     libfwevt_xml_value_t *xml_value,
     int *number_of_data_segments,
     libcerror_error_t **error )
{
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  static char *function                             = "libfwevt_xml_value_get_number_of_data_segments";

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  internal_xml_value = (libfwevt_internal_xml_value_t *) xml_value;

  if( libcdata_array_get_number_of_entries(
       internal_xml_value->data_segments,
       number_of_data_segments,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve number of data segments.",
     function );

    return( -1 );
  }
  return( 1 );
}

/* Retrieves a specific data segment and initialized its cached value
 * Returns 1 if successful or -1 on error
 */
int libfwevt_internal_xml_value_get_data_segment_with_cached_value(
     libfwevt_internal_xml_value_t *internal_xml_value,
     int data_segment_index,
     libfwevt_data_segment_t **data_segment,
     libcerror_error_t **error )
{
  libfwevt_data_segment_t *safe_data_segment = NULL;
  static char *function                      = "libfwevt_internal_xml_value_get_data_segment_with_cached_value";

  if( internal_xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  if( data_segment == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid data segment.",
     function );

    return( -1 );
  }
  if( libcdata_array_get_entry_by_index(
       internal_xml_value->data_segments,
       data_segment_index,
       (intptr_t **) &safe_data_segment,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve data segment: %d.",
     function,
     data_segment_index );

    return( -1 );
  }
  if( safe_data_segment == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: missing data segment: %d.",
     function,
     data_segment_index );

    return( -1 );
  }
  if( safe_data_segment->cached_value_type == 0 )
  {
    switch( internal_xml_value->value_type & 0x7f )
    {
      case LIBFWEVT_VALUE_TYPE_INTEGER_8BIT:
      case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_8BIT:
        if( safe_data_segment->data_size != 1 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
           "%s: invalid data segment: %d - unsupported data size.",
           function,
           safe_data_segment );

          return( -1 );
        }
        safe_data_segment->value_64bit = safe_data_segment->data[ 0 ];

        break;

      case LIBFWEVT_VALUE_TYPE_INTEGER_16BIT:
      case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_16BIT:
        if( safe_data_segment->data_size != 2 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
           "%s: invalid data segment: %d - unsupported data size.",
           function,
           safe_data_segment );

          return( -1 );
        }
        byte_stream_copy_to_uint16_little_endian(
         safe_data_segment->data,
         safe_data_segment->value_64bit );

        break;

      case LIBFWEVT_VALUE_TYPE_INTEGER_32BIT:
      case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_32BIT:
      case LIBFWEVT_VALUE_TYPE_HEXADECIMAL_INTEGER_32BIT:
      case LIBFWEVT_VALUE_TYPE_FLOATING_POINT_32BIT:
      case LIBFWEVT_VALUE_TYPE_BOOLEAN:
        if( safe_data_segment->data_size != 4 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
           "%s: invalid data segment: %d - unsupported data size.",
           function,
           safe_data_segment );

          return( -1 );
        }
        byte_stream_copy_to_uint32_little_endian(
         safe_data_segment->data,
         safe_data_segment->value_64bit );

        break;

      case LIBFWEVT_VALUE_TYPE_INTEGER_64BIT:
      case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_64BIT:
      case LIBFWEVT_VALUE_TYPE_HEXADECIMAL_INTEGER_64BIT:
      case LIBFWEVT_VALUE_TYPE_FLOATING_POINT_64BIT:
        if( safe_data_segment->data_size != 8 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
           "%s: invalid data segment: %d - unsupported data size.",
           function,
           safe_data_segment );

          return( -1 );
        }
        byte_stream_copy_to_uint64_little_endian(
         safe_data_segment->data,
         safe_data_segment->value_64bit );

        break;

      case LIBFWEVT_VALUE_TYPE_GUID:
        if( libfguid_identifier_initialize(
             &( safe_data_segment->guid ),
             error ) != 1 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
           "%s: unable to create GUID.",
           function );

          return( -1 );
        }
        if( libfguid_identifier_copy_from_byte_stream(
             safe_data_segment->guid,
             safe_data_segment->data,
             safe_data_segment->data_size,
             LIBFGUID_ENDIAN_LITTLE,
             error ) != 1 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
           "%s: unable to copy byte stream to GUID.",
           function );

          return( -1 );
        }
        break;

      case LIBFWEVT_VALUE_TYPE_FILETIME:
        if( libfdatetime_filetime_initialize(
             &( safe_data_segment->filetime ),
             error ) != 1 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
           "%s: unable to create FILETIME.",
           function );

          return( -1 );
        }
        if( libfdatetime_filetime_copy_from_byte_stream(
             safe_data_segment->filetime,
             safe_data_segment->data,
             safe_data_segment->data_size,
             LIBFDATETIME_ENDIAN_LITTLE,
             error ) != 1 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
           "%s: unable to copy byte stream to FILETIME.",
           function );

          return( -1 );
        }
        break;

      case LIBFWEVT_VALUE_TYPE_SYSTEMTIME:
        if( libfdatetime_systemtime_initialize(
             &( safe_data_segment->systemtime ),
             error ) != 1 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
           "%s: unable to create SYSTEMTIME.",
           function );

          return( -1 );
        }
        if( libfdatetime_systemtime_copy_from_byte_stream(
             safe_data_segment->systemtime,
             safe_data_segment->data,
             safe_data_segment->data_size,
             LIBFDATETIME_ENDIAN_LITTLE,
             error ) != 1 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
           "%s: unable to copy byte stream to SYSTEMTIME.",
           function );

          return( -1 );
        }
        break;

      case LIBFWEVT_VALUE_TYPE_NT_SECURITY_IDENTIFIER:
        if( libfwnt_security_identifier_initialize(
             &( safe_data_segment->security_identifier ),
             error ) != 1 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
           "%s: unable to create NT security identifier.",
           function );

          return( -1 );
        }
        if( libfwnt_security_identifier_copy_from_byte_stream(
             safe_data_segment->security_identifier,
             safe_data_segment->data,
             safe_data_segment->data_size,
             LIBFWNT_ENDIAN_LITTLE,
             error ) != 1 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
           "%s: unable to copy byte stream to NT security identifier.",
           function );

          return( -1 );
        }
        break;
    }
    safe_data_segment->cached_value_type = internal_xml_value->value_type & 0x7f;
  }
  *data_segment = safe_data_segment;

  return( 1 );
}

/* Appends a data segment
 * Returns 1 if successful or -1 on error
 */
int libfwevt_xml_value_append_data_segment(
     libfwevt_xml_value_t *xml_value,
     const uint8_t *data,
     size_t data_size,
     int *data_segment_index,
     libcerror_error_t **error )
{
  libfwevt_data_segment_t *data_segment             = NULL;
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  static char *function                             = "libfwevt_xml_value_append_data_segment";

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  internal_xml_value = (libfwevt_internal_xml_value_t *) xml_value;

  if( libfwevt_data_segment_initialize(
       &data_segment,
       data,
       data_size,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
     "%s: unable to create data segment.",
     function );

    goto on_error;
  }
  if( libcdata_array_append_entry(
       internal_xml_value->data_segments,
       data_segment_index,
       (intptr_t *) data_segment,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_APPEND_FAILED,
     "%s: unable to append data segment to array.",
     function );

    return( -1 );
  }
  internal_xml_value->data_size += data_size;

  return( 1 );

on_error:
  if( data_segment != NULL )
  {
    libfwevt_data_segment_free(
     &data_segment,
     NULL );
  }
  return( -1 );
}

/* Retrieves the data size
 * Returns 1 if successful or -1 on error
 */
int libfwevt_xml_value_get_data_size(
     libfwevt_xml_value_t *xml_value,
     size_t *data_size,
     libcerror_error_t **error )
{
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  static char *function                             = "libfwevt_xml_value_get_data_size";

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  internal_xml_value = (libfwevt_internal_xml_value_t *) xml_value;

  if( data_size == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid data size.",
     function );

    return( -1 );
  }
  *data_size = internal_xml_value->data_size;

  return( 1 );
}

/* Copies the data
 * Returns 1 if successful or -1 on error
 */
int libfwevt_xml_value_copy_data(
     libfwevt_xml_value_t *xml_value,
     uint8_t *data,
     size_t data_size,
     libcerror_error_t **error )
{
  libfwevt_data_segment_t *data_segment             = NULL;
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  static char *function                             = "libfwevt_xml_value_copy_data";
  size_t data_offset                                = 0;
  int data_segment_index                            = 0;
  int number_of_data_segments                       = 0;

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  internal_xml_value = (libfwevt_internal_xml_value_t *) xml_value;

  if( data == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid data.",
     function );

    return( -1 );
  }
  if( ( data_size < internal_xml_value->data_size )
   || ( data_size > (size_t) SSIZE_MAX ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid data size value out of bounds.",
     function );

    return( -1 );
  }
  if( libcdata_array_get_number_of_entries(
       internal_xml_value->data_segments,
       &number_of_data_segments,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve number of data segments.",
     function );

    return( -1 );
  }
  for( data_segment_index = 0;
       data_segment_index < number_of_data_segments;
       data_segment_index++ )
  {
    if( libcdata_array_get_entry_by_index(
         internal_xml_value->data_segments,
         data_segment_index,
         (intptr_t **) &data_segment,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve data segment: %d.",
       function,
       data_segment_index );

      return( -1 );
    }
    if( data_segment == NULL )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
       "%s: missing data segment: %d.",
       function,
       data_segment_index );

      return( -1 );
    }
    if( data_segment->data == NULL )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
       "%s: invalid data segment: %d - missing data.",
       function,
       data_segment_index );

      return( -1 );
    }
    if( ( data_segment->data_size > data_size )
     || ( data_offset > ( data_size - data_segment->data_size ) ) )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
       "%s: invalid data segment: %d - data size value out of bounds.",
       function,
       data_segment_index );

      return( -1 );
    }
    if( memory_copy(
         &( data[ data_offset ] ),
         data_segment->data,
         data_segment->data_size ) == NULL )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_MEMORY,
       LIBCERROR_MEMORY_ERROR_COPY_FAILED,
       "%s: unable to copy data segment: %d.",
       function,
       data_segment_index );

      return( -1 );
    }
    data_offset += data_segment->data_size;
  }
  return( 1 );
}

/* Retrieves the value data as a 8-bit integer value
 * Returns 1 if successful, 0 if value not be retrieved or -1 on error
 */
int libfwevt_value_get_data_as_8bit_integer(
     libfwevt_xml_value_t *xml_value,
     uint8_t *value_8bit,
     libcerror_error_t **error )
{
  libfwevt_data_segment_t *data_segment             = NULL;
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  static char *function                             = "libfwevt_value_get_data_as_8bit_integer";

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  internal_xml_value = (libfwevt_internal_xml_value_t *) xml_value;

  if( value_8bit == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid value 8-bit.",
     function );

    return( -1 );
  }
  if( ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_INTEGER_8BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_8BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_INTEGER_16BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_16BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_INTEGER_32BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_32BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_INTEGER_64BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_64BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_STRING_UTF16 ) )
  {
    return( 0 );
  }
  if( libfwevt_internal_xml_value_get_data_segment_with_cached_value(
       internal_xml_value,
       0,
       &data_segment,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve data segment: 0.",
     function );

    return( -1 );
  }
  if( data_segment == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: missing data segment: 0.",
     function );

    return( -1 );
  }
  if( internal_xml_value->value_type == LIBFWEVT_VALUE_TYPE_STRING_UTF16 )
  {
    if( libfwevt_integer_copy_from_utf16_stream(
         &( data_segment->value_64bit ),
         data_segment->data,
         data_segment->data_size,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
       "%s: unable to determine integer value from UTF-16 string data segment: 0.",
       function );

      return( -1 );
    }
    data_segment->cached_value_type = internal_xml_value->value_type;
  }
  if( data_segment->value_64bit > (uint64_t) UINT8_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid data segment: 0 - integer value out of bounds.",
     function );

    return( -1 );
  }
  *value_8bit = (uint8_t) data_segment->value_64bit;

  return( 1 );
}

/* Retrieves the value data as a 32-bit integer value
 * Returns 1 if successful, 0 if value not be retrieved or -1 on error
 */
int libfwevt_value_get_data_as_32bit_integer(
     libfwevt_xml_value_t *xml_value,
     uint32_t *value_32bit,
     libcerror_error_t **error )
{
  libfwevt_data_segment_t *data_segment             = NULL;
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  static char *function                             = "libfwevt_value_get_data_as_32bit_integer";

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  internal_xml_value = (libfwevt_internal_xml_value_t *) xml_value;

  if( value_32bit == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid value 32-bit.",
     function );

    return( -1 );
  }
  if( ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_INTEGER_8BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_8BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_INTEGER_16BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_16BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_INTEGER_32BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_32BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_INTEGER_64BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_64BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_STRING_UTF16 ) )
  {
    return( 0 );
  }
  if( libfwevt_internal_xml_value_get_data_segment_with_cached_value(
       internal_xml_value,
       0,
       &data_segment,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve data segment: 0.",
     function );

    return( -1 );
  }
  if( data_segment == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: missing data segment: 0.",
     function );

    return( -1 );
  }
  if( internal_xml_value->value_type == LIBFWEVT_VALUE_TYPE_STRING_UTF16 )
  {
    if( libfwevt_integer_copy_from_utf16_stream(
         &( data_segment->value_64bit ),
         data_segment->data,
         data_segment->data_size,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
       "%s: unable to determine integer value from UTF-16 string data segment: 0.",
       function );

      return( -1 );
    }
    data_segment->cached_value_type = internal_xml_value->value_type;
  }
  if( data_segment->value_64bit > (uint64_t) UINT32_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid data segment: 0 - integer value out of bounds.",
     function );

    return( -1 );
  }
  *value_32bit = (uint32_t) data_segment->value_64bit;

  return( 1 );
}

/* Retrieves the value data as a 64-bit integer value
 * Returns 1 if successful, 0 if value not be retrieved or -1 on error
 */
int libfwevt_value_get_data_as_64bit_integer(
     libfwevt_xml_value_t *xml_value,
     uint64_t *value_64bit,
     libcerror_error_t **error )
{
  libfwevt_data_segment_t *data_segment             = NULL;
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  static char *function                             = "libfwevt_value_get_data_as_64bit_integer";

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  internal_xml_value = (libfwevt_internal_xml_value_t *) xml_value;

  if( value_64bit == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid value 64-bit.",
     function );

    return( -1 );
  }
  if( ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_INTEGER_8BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_8BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_INTEGER_16BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_16BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_INTEGER_32BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_32BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_INTEGER_64BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_64BIT )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_STRING_UTF16 ) )
  {
    return( 0 );
  }
  if( libfwevt_internal_xml_value_get_data_segment_with_cached_value(
       internal_xml_value,
       0,
       &data_segment,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve data segment: 0.",
     function );

    return( -1 );
  }
  if( data_segment == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: missing data segment: 0.",
     function );

    return( -1 );
  }
  if( internal_xml_value->value_type == LIBFWEVT_VALUE_TYPE_STRING_UTF16 )
  {
    if( libfwevt_integer_copy_from_utf16_stream(
         &( data_segment->value_64bit ),
         data_segment->data,
         data_segment->data_size,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
       "%s: unable to determine integer value from UTF-16 string data segment: 0.",
       function );

      return( -1 );
    }
    data_segment->cached_value_type = internal_xml_value->value_type;
  }
  *value_64bit = data_segment->value_64bit;

  return( 1 );
}

/* Retrieves the value data as a 64-bit FILETIME value
 * Returns 1 if successful, 0 if value not be retrieved or -1 on error
 */
int libfwevt_value_get_data_as_filetime(
     libfwevt_xml_value_t *xml_value,
     uint64_t *filetime,
     libcerror_error_t **error )
{
  libfwevt_data_segment_t *data_segment             = NULL;
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  static char *function                             = "libfwevt_value_get_data_as_filetime";
  uint64_t safe_filetime                            = 0;

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  internal_xml_value = (libfwevt_internal_xml_value_t *) xml_value;

  if( filetime == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid FILETIME value.",
     function );

    return( -1 );
  }
  if( ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_FILETIME )
   && ( internal_xml_value->value_type != LIBFWEVT_VALUE_TYPE_STRING_UTF16 ) )
  {
    return( 0 );
  }
  if( libcdata_array_get_entry_by_index(
       internal_xml_value->data_segments,
       0,
       (intptr_t **) &data_segment,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve data segment: 0.",
     function );

    return( -1 );
  }
  if( data_segment == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: missing data segment: 0.",
     function );

    return( -1 );
  }
  if( data_segment->data == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: invalid data segment: 0 - missing data.",
     function );

    return( -1 );
  }
  if( internal_xml_value->value_type == LIBFWEVT_VALUE_TYPE_STRING_UTF16 )
  {
    if( libfwevt_filetime_copy_from_utf16_stream(
         &safe_filetime,
         data_segment->data,
         data_segment->data_size,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
       "%s: unable to copy data segment: 0 to FILTEIME.",
       function );

      return( -1 );
    }
  }
  else
  {
    if( data_segment->data_size != 8 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
       "%s: invalid data segment: 0 - unsupported data size.",
       function );

      return( -1 );
    }
    byte_stream_copy_to_uint64_little_endian(
     data_segment->data,
     safe_filetime );
  }
  *filetime = safe_filetime;

  return( 1 );
}

/* Retrieves the size of the data segment formatted as an UTF-8 string
 * The string size includes the end of string character
 * Returns 1 if successful or -1 on error
 */
int libfwevt_internal_xml_value_get_data_segment_as_utf8_string_size(
     libfwevt_internal_xml_value_t *internal_xml_value,
     int data_segment_index,
     libfwevt_data_segment_t *data_segment,
     size_t *utf8_string_size,
     uint8_t escape_characters,
     libcerror_error_t **error )
{
  static char *function        = "libfwevt_internal_xml_value_get_data_segment_as_utf8_string_size";
  size_t base16_stream_size    = 0;
  size_t safe_utf8_string_size = 0;
  uint32_t format_flags        = 0;
  int result                   = 0;

  if( internal_xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  if( data_segment == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid data segment.",
     function );

    return( -1 );
  }
  if( utf8_string_size == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-8 string size.",
     function );

    return( -1 );
  }
  switch( internal_xml_value->value_type & 0x7f )
  {
    case LIBFWEVT_VALUE_TYPE_STRING_UTF16:
      if( data_segment->data_size == 0 )
      {
        result = 1;
      }
      else if( escape_characters == 0 )
      {
        result = libuna_utf8_string_size_from_utf16_stream(
                  data_segment->data,
                  data_segment->data_size,
                  LIBUNA_ENDIAN_LITTLE,
                  &safe_utf8_string_size,
                  error );
      }
      else
      {
        result = libfwevt_utf8_xml_string_size_from_utf16_stream(
                  data_segment->data,
                  data_segment->data_size,
                  LIBUNA_ENDIAN_LITTLE,
                  &safe_utf8_string_size,
                  error );
      }
      break;

    case LIBFWEVT_VALUE_TYPE_STRING_BYTE_STREAM:
      if( data_segment->data_size == 0 )
      {
        result = 1;
      }
      else
      {
/* TODO pass codepage */
        result = libuna_utf8_string_size_from_byte_stream(
                  data_segment->data,
                  data_segment->data_size,
                  LIBUNA_CODEPAGE_WINDOWS_1252,
                  &safe_utf8_string_size,
                  error );
      }
/* TODO add support for escape_characters */
      break;

    case LIBFWEVT_VALUE_TYPE_INTEGER_8BIT:
      result = libfwevt_integer_as_signed_decimal_get_string_size(
                data_segment->value_64bit,
                8,
                &safe_utf8_string_size,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_INTEGER_16BIT:
      result = libfwevt_integer_as_signed_decimal_get_string_size(
                data_segment->value_64bit,
                16,
                &safe_utf8_string_size,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_INTEGER_32BIT:
      result = libfwevt_integer_as_signed_decimal_get_string_size(
                data_segment->value_64bit,
                32,
                &safe_utf8_string_size,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_INTEGER_64BIT:
      result = libfwevt_integer_as_signed_decimal_get_string_size(
                data_segment->value_64bit,
                64,
                &safe_utf8_string_size,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_8BIT:
    case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_16BIT:
    case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_32BIT:
    case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_64BIT:
      result = libfwevt_integer_as_unsigned_decimal_get_string_size(
                data_segment->value_64bit,
                &safe_utf8_string_size,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_FLOATING_POINT_32BIT:
      result = libfwevt_float32_get_string_size(
                (uint32_t) data_segment->value_64bit,
                &safe_utf8_string_size,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_FLOATING_POINT_64BIT:
      result = libfwevt_float64_get_string_size(
                data_segment->value_64bit,
                &safe_utf8_string_size,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_BOOLEAN:
      if( data_segment->value_64bit == 0 )
      {
        safe_utf8_string_size += 6;
      }
      else
      {
        safe_utf8_string_size += 5;
      }
      result = 1;

      break;

    case LIBFWEVT_VALUE_TYPE_BINARY_DATA:
      if( data_segment->data_size == 0 )
      {
        result = 1;
      }
      else
      {
        format_flags = LIBUNA_BASE16_VARIANT_CASE_UPPER | LIBUNA_BASE16_VARIANT_CHARACTER_LIMIT_NONE;

        result = libuna_base16_stream_size_from_byte_stream(
                  data_segment->data,
                  data_segment->data_size,
                  &base16_stream_size,
                  format_flags,
                  error );

        if( result == 1 )
        {
          safe_utf8_string_size += base16_stream_size + 1;
        }
      }
      break;

    case LIBFWEVT_VALUE_TYPE_GUID:
      result = libfguid_identifier_get_string_size(
                data_segment->guid,
                &safe_utf8_string_size,
                LIBFGUID_STRING_FORMAT_FLAG_USE_UPPER_CASE | LIBFGUID_STRING_FORMAT_FLAG_USE_SURROUNDING_BRACES,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_FILETIME:
      result = libfdatetime_filetime_get_string_size(
                data_segment->filetime,
                &safe_utf8_string_size,
                LIBFDATETIME_STRING_FORMAT_TYPE_ISO8601 | LIBFDATETIME_STRING_FORMAT_FLAG_DATE_TIME_NANO_SECONDS | LIBFDATETIME_STRING_FORMAT_FLAG_TIMEZONE_INDICATOR,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_SYSTEMTIME:
      result = libfdatetime_systemtime_get_string_size(
                data_segment->systemtime,
                &safe_utf8_string_size,
                LIBFDATETIME_STRING_FORMAT_TYPE_ISO8601 | LIBFDATETIME_STRING_FORMAT_FLAG_DATE_TIME_NANO_SECONDS | LIBFDATETIME_STRING_FORMAT_FLAG_TIMEZONE_INDICATOR,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_NT_SECURITY_IDENTIFIER:
      result = libfwnt_security_identifier_get_string_size(
                data_segment->security_identifier,
                &safe_utf8_string_size,
          0,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_HEXADECIMAL_INTEGER_32BIT:
      safe_utf8_string_size = 11;

      result = 1;
      break;

    case LIBFWEVT_VALUE_TYPE_HEXADECIMAL_INTEGER_64BIT:
      safe_utf8_string_size = 19;

      result = 1;
      break;

    default:
      break;
  }
  if( result != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
     "%s: unable to determine size UTF-8 string of data segment: %d.",
     function,
     data_segment_index );

    return( -1 );
  }
  *utf8_string_size = safe_utf8_string_size;

  return( 1 );
}

/* Retrieves the data segment formatted as an UTF-8 string
 * Returns 1 if successful or -1 on error
 */
int libfwevt_internal_xml_value_get_data_segment_as_utf8_string(
     libfwevt_internal_xml_value_t *internal_xml_value,
     int data_segment_index,
     libfwevt_data_segment_t *data_segment,
     uint8_t *utf8_string,
     size_t utf8_string_size,
     size_t *utf8_string_index,
     uint8_t escape_characters,
     libcerror_error_t **error )
{
  static char *function         = "libfwevt_internal_xml_value_get_data_segment_as_utf8_string";
  size_t base16_stream_index    = 0;
  size_t safe_utf8_string_index = 0;
  uint32_t format_flags         = 0;
  uint8_t number_of_characters  = 0;
  int result                    = 0;

  if( internal_xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  if( data_segment == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid data segment.",
     function );

    return( -1 );
  }
  if( utf8_string == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-8 string.",
     function );

    return( -1 );
  }
  if( utf8_string_size > (size_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid UTF-8 string size value exceeds maximum.",
     function );

    return( -1 );
  }
  if( utf8_string_index == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-8 string index.",
     function );

    return( -1 );
  }
  switch( internal_xml_value->value_type & 0x7f )
  {
    case LIBFWEVT_VALUE_TYPE_STRING_UTF16:
      if( data_segment->data_size == 0 )
      {
        result = 1;
      }
      else if( escape_characters == 0 )
      {
        result = libuna_utf8_string_with_index_copy_from_utf16_stream(
                  utf8_string,
                  utf8_string_size,
                  utf8_string_index,
                  data_segment->data,
                  data_segment->data_size,
                  LIBUNA_ENDIAN_LITTLE,
                  error );
      }
      else
      {
        result = libfwevt_utf8_xml_string_with_index_copy_from_utf16_stream(
                  utf8_string,
                  utf8_string_size,
                  utf8_string_index,
                  data_segment->data,
                  data_segment->data_size,
                  LIBUNA_ENDIAN_LITTLE,
                  error );
      }
      break;

    case LIBFWEVT_VALUE_TYPE_STRING_BYTE_STREAM:
/* TODO pass codepage */
      result = libuna_utf8_string_with_index_copy_from_byte_stream(
                utf8_string,
                utf8_string_size,
                utf8_string_index,
                data_segment->data,
                data_segment->data_size,
                LIBUNA_CODEPAGE_WINDOWS_1252,
                error );
/* TODO add support for escape_characters */
      break;

    case LIBFWEVT_VALUE_TYPE_INTEGER_8BIT:
      result = libfwevt_integer_as_signed_decimal_copy_to_utf8_string_with_index(
                data_segment->value_64bit,
                8,
                utf8_string,
                utf8_string_size,
                utf8_string_index,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_INTEGER_16BIT:
      result = libfwevt_integer_as_signed_decimal_copy_to_utf8_string_with_index(
                data_segment->value_64bit,
                16,
                utf8_string,
                utf8_string_size,
                utf8_string_index,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_INTEGER_32BIT:
      result = libfwevt_integer_as_signed_decimal_copy_to_utf8_string_with_index(
                data_segment->value_64bit,
                32,
                utf8_string,
                utf8_string_size,
                utf8_string_index,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_INTEGER_64BIT:
      result = libfwevt_integer_as_signed_decimal_copy_to_utf8_string_with_index(
                data_segment->value_64bit,
                64,
                utf8_string,
                utf8_string_size,
                utf8_string_index,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_8BIT:
    case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_16BIT:
    case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_32BIT:
    case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_64BIT:
      result = libfwevt_integer_as_unsigned_decimal_copy_to_utf8_string_with_index(
                data_segment->value_64bit,
                utf8_string,
                utf8_string_size,
                utf8_string_index,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_FLOATING_POINT_32BIT:
      result = libfwevt_float32_copy_to_utf8_string_with_index(
                (uint32_t) data_segment->value_64bit,
                utf8_string,
                utf8_string_size,
                utf8_string_index,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_FLOATING_POINT_64BIT:
      result = libfwevt_float64_copy_to_utf8_string_with_index(
                data_segment->value_64bit,
                utf8_string,
                utf8_string_size,
                utf8_string_index,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_BOOLEAN:
      if( data_segment->value_64bit == 0 )
      {
        number_of_characters = 6;
      }
      else
      {
        number_of_characters = 5;
      }
      safe_utf8_string_index = *utf8_string_index;

      if( ( number_of_characters > utf8_string_size )
       || ( safe_utf8_string_index > ( utf8_string_size - number_of_characters ) ) )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
         LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
         "%s: invalid UTF-8 string size value too small.",
         function );

        return( -1 );
      }
      if( data_segment->value_64bit == 0 )
      {
        utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'f';
        utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'a';
        utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'l';
        utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 's';
        utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'e';
      }
      else
      {
        utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 't';
        utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'r';
        utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'u';
        utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'e';
      }
      utf8_string[ safe_utf8_string_index++ ] = 0;

      *utf8_string_index = safe_utf8_string_index;

      result = 1;

      break;

    case LIBFWEVT_VALUE_TYPE_BINARY_DATA:
      base16_stream_index = *utf8_string_index;
      format_flags        = LIBUNA_BASE16_VARIANT_CASE_UPPER | LIBUNA_BASE16_VARIANT_CHARACTER_LIMIT_NONE;

      result = libuna_base16_stream_with_index_copy_from_byte_stream(
                (uint8_t *) utf8_string,
                utf8_string_size,
                &base16_stream_index,
                data_segment->data,
                data_segment->data_size,
                format_flags,
                error );

      if( result == 1 )
      {
        *utf8_string_index = base16_stream_index + 1;
      }
      break;

    case LIBFWEVT_VALUE_TYPE_GUID:
      result = libfguid_identifier_copy_to_utf8_string_with_index(
                data_segment->guid,
                utf8_string,
                utf8_string_size,
                utf8_string_index,
                LIBFGUID_STRING_FORMAT_FLAG_USE_UPPER_CASE | LIBFGUID_STRING_FORMAT_FLAG_USE_SURROUNDING_BRACES,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_FILETIME:
      result = libfdatetime_filetime_copy_to_utf8_string_with_index(
                data_segment->filetime,
                utf8_string,
                utf8_string_size,
                utf8_string_index,
                LIBFDATETIME_STRING_FORMAT_TYPE_ISO8601 | LIBFDATETIME_STRING_FORMAT_FLAG_DATE_TIME_NANO_SECONDS | LIBFDATETIME_STRING_FORMAT_FLAG_TIMEZONE_INDICATOR,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_SYSTEMTIME:
      result = libfdatetime_systemtime_copy_to_utf8_string_with_index(
                data_segment->systemtime,
                utf8_string,
                utf8_string_size,
                utf8_string_index,
                LIBFDATETIME_STRING_FORMAT_TYPE_ISO8601 | LIBFDATETIME_STRING_FORMAT_FLAG_DATE_TIME_NANO_SECONDS | LIBFDATETIME_STRING_FORMAT_FLAG_TIMEZONE_INDICATOR,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_NT_SECURITY_IDENTIFIER:
      result = libfwnt_security_identifier_copy_to_utf8_string_with_index(
                data_segment->security_identifier,
                utf8_string,
                utf8_string_size,
                utf8_string_index,
          0,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_HEXADECIMAL_INTEGER_32BIT:
      result = libfwevt_integer_as_hexadecimal_copy_to_utf8_string_with_index(
                data_segment->value_64bit,
                32,
                utf8_string,
                utf8_string_size,
                utf8_string_index,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_HEXADECIMAL_INTEGER_64BIT:
      result = libfwevt_integer_as_hexadecimal_copy_to_utf8_string_with_index(
                data_segment->value_64bit,
                64,
                utf8_string,
                utf8_string_size,
                utf8_string_index,
                error );
      break;

    default:
      break;
  }
  if( result != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
     "%s: unable to copy data segment: %d to UTF-8 string.",
     function,
     data_segment_index );

    return( -1 );
  }
  return( 1 );
}

/* Retrieves the size of the value data formatted as an UTF-8 string
 * The string size includes the end of string character
 * Returns 1 if successful or -1 on error
 */
int libfwevt_internal_xml_value_get_data_as_utf8_string_size(
     libfwevt_internal_xml_value_t *internal_xml_value,
     size_t *utf8_string_size,
     uint8_t escape_characters,
     libcerror_error_t **error )
{
  libfwevt_data_segment_t *data_segment = NULL;
  static char *function                 = "libfwevt_internal_xml_value_get_data_as_utf8_string_size";
  size_t data_segment_size              = 0;
  size_t safe_utf8_string_size          = 0;
  int data_segment_index                = 0;
  int number_of_data_segments           = 0;

  if( internal_xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  if( utf8_string_size == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-8 string size.",
     function );

    return( -1 );
  }
  if( libcdata_array_get_number_of_entries(
       internal_xml_value->data_segments,
       &number_of_data_segments,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve number of data segments.",
     function );

    return( -1 );
  }
  for( data_segment_index = 0;
       data_segment_index < number_of_data_segments;
       data_segment_index++ )
  {
    if( libfwevt_internal_xml_value_get_data_segment_with_cached_value(
         internal_xml_value,
         data_segment_index,
         &data_segment,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve data segment: %d.",
       function,
       data_segment_index );

      return( -1 );
    }
    if( libfwevt_internal_xml_value_get_data_segment_as_utf8_string_size(
         internal_xml_value,
         data_segment_index,
         data_segment,
         &data_segment_size,
         escape_characters,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve UTF-8 string size of element data segment: %d.",
       function,
       data_segment_index );

      return( -1 );
    }
    if( data_segment_size > 1 )
    {
      safe_utf8_string_size += data_segment_size - 1;
    }
  }
  if( ( number_of_data_segments == 1 )
   && ( data_segment != NULL )
   && ( safe_utf8_string_size == 1 ) )
  {
    if( ( data_segment->data_size >= 2 )
     && ( data_segment->data[ 0 ] == '\n' )
     && ( data_segment->data[ 1 ] == 0 ) )
    {
      /* The value data consists of a single linefeed consider it empty
       */
      safe_utf8_string_size = 0;
    }
  }
  if( safe_utf8_string_size > 0 )
  {
    safe_utf8_string_size++;
  }
  *utf8_string_size = safe_utf8_string_size;

  return( 1 );
}

/* Retrieves the data formatted as an UTF-8 string
 * The string size should include the end of string character
 * Returns 1 if successful or -1 on error
 */
int libfwevt_internal_xml_value_get_data_as_utf8_string_with_index(
     libfwevt_internal_xml_value_t *internal_xml_value,
     uint8_t *utf8_string,
     size_t utf8_string_size,
     size_t *utf8_string_index,
     uint8_t escape_characters,
     libcerror_error_t **error )
{
  libfwevt_data_segment_t *data_segment = NULL;
  static char *function                 = "libfwevt_internal_xml_value_get_data_as_utf8_string_with_index";
  size_t safe_utf8_string_index         = 0;
  int data_segment_index                = 0;
  int number_of_data_segments           = 0;

  if( internal_xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  if( utf8_string == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-8 string.",
     function );

    return( -1 );
  }
  if( utf8_string_size > (size_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid UTF-8 string size value exceeds maximum.",
     function );

    return( -1 );
  }
  if( utf8_string_index == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-8 string index.",
     function );

    return( -1 );
  }
  safe_utf8_string_index = *utf8_string_index;

  if( libcdata_array_get_number_of_entries(
       internal_xml_value->data_segments,
       &number_of_data_segments,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve number of data segments.",
     function );

    return( -1 );
  }
  for( data_segment_index = 0;
       data_segment_index < number_of_data_segments;
       data_segment_index++ )
  {
    if( libfwevt_internal_xml_value_get_data_segment_with_cached_value(
         internal_xml_value,
         data_segment_index,
         &data_segment,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve data segment: %d.",
       function,
       data_segment_index );

      return( -1 );
    }
    if( libfwevt_internal_xml_value_get_data_segment_as_utf8_string(
         internal_xml_value,
         data_segment_index,
         data_segment,
         utf8_string,
         utf8_string_size,
         &safe_utf8_string_index,
         escape_characters,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
       "%s: unable to copy data segment: %d to UTF-8 string.",
       function,
       data_segment_index );

      return( -1 );
    }
    safe_utf8_string_index--;
  }
  if( ( number_of_data_segments == 1 )
   && ( data_segment != NULL )
   && ( safe_utf8_string_index == 1 ) )
  {
    if( ( data_segment->data_size >= 2 )
     && ( data_segment->data[ 0 ] == '\n' )
     && ( data_segment->data[ 1 ] == 0 ) )
    {
      /* The value data consists of a single linefeed consider it empty
       */
      safe_utf8_string_index = 0;
    }
  }
  if( safe_utf8_string_index > 0 )
  {
    if( safe_utf8_string_index >= utf8_string_size  )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
       LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
       "%s: invalid UTF-8 string size value too small.",
       function );

      return( -1 );
    }
    utf8_string[ safe_utf8_string_index++ ] = 0;
  }
  *utf8_string_index = safe_utf8_string_index;

  return( 1 );
}

/* Retrieves the size of an UTF-8 encoded string of the value data
 * Returns 1 if successful or -1 on error
 */
int libfwevt_xml_value_get_utf8_string_size(
     libfwevt_xml_value_t *xml_value,
     size_t *utf8_string_size,
     libcerror_error_t **error )
{
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  static char *function                             = "libfwevt_xml_value_get_utf8_string_size";

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  internal_xml_value = (libfwevt_internal_xml_value_t *) xml_value;

  if( libfwevt_internal_xml_value_get_data_as_utf8_string_size(
       internal_xml_value,
       utf8_string_size,
       0,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve size of UTF-8 string.",
     function );

    return( -1 );
  }
  return( 1 );
}

/* Copies the value data to an UTF-8 encoded string
 * Returns 1 if successful or -1 on error
 */
int libfwevt_xml_value_copy_to_utf8_string(
     libfwevt_xml_value_t *xml_value,
     uint8_t *utf8_string,
     size_t utf8_string_size,
     libcerror_error_t **error )
{
  static char *function = "libfwevt_xml_value_copy_to_utf8_string";

  if( libfwevt_xml_value_get_data_as_utf8_string(
       xml_value,
       utf8_string,
       utf8_string_size,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve size of UTF-8 string.",
     function );

    return( -1 );
  }
  return( 1 );
}

/* Retrieves the size of the value data formatted as an UTF-8 string
 * The string size includes the end of string character
 * Returns 1 if successful or -1 on error
 */
int libfwevt_xml_value_get_data_as_utf8_string_size(
     libfwevt_xml_value_t *xml_value,
     size_t *utf8_string_size,
     libcerror_error_t **error )
{
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  static char *function                             = "libfwevt_xml_value_get_data_as_utf8_string_size";

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  internal_xml_value = (libfwevt_internal_xml_value_t *) xml_value;

  if( libfwevt_internal_xml_value_get_data_as_utf8_string_size(
       internal_xml_value,
       utf8_string_size,
       0,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve UTF-8 string size.",
     function );

    return( -1 );
  }
  return( 1 );
}

/* Retrieves the data formatted as an UTF-8 string
 * The string size should include the end of string character
 * Returns 1 if successful or -1 on error
 */
int libfwevt_xml_value_get_data_as_utf8_string(
     libfwevt_xml_value_t *xml_value,
     uint8_t *utf8_string,
     size_t utf8_string_size,
     libcerror_error_t **error )
{
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  static char *function                             = "libfwevt_xml_value_get_data_as_utf8_string";
  size_t utf8_string_index                          = 0;

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  internal_xml_value = (libfwevt_internal_xml_value_t *) xml_value;

  if( libfwevt_internal_xml_value_get_data_as_utf8_string_with_index(
       internal_xml_value,
       utf8_string,
       utf8_string_size,
       &utf8_string_index,
       0,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve size of UTF-8 string.",
     function );

    return( -1 );
  }
  return( 1 );
}

/* Retrieves the size of the data segment formatted as an UTF-16 string
 * The string size includes the end of string character
 * Returns 1 if successful or -1 on error
 */
int libfwevt_internal_xml_value_get_data_segment_as_utf16_string_size(
     libfwevt_internal_xml_value_t *internal_xml_value,
     int data_segment_index,
     libfwevt_data_segment_t *data_segment,
     size_t *utf16_string_size,
     uint8_t escape_characters,
     libcerror_error_t **error )
{
  static char *function         = "libfwevt_internal_xml_value_get_data_segment_as_utf16_string_size";
  size_t base16_stream_size     = 0;
  size_t safe_utf16_string_size = 0;
  uint32_t format_flags         = 0;
  int result                    = 0;

  if( internal_xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  if( data_segment == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid data segment.",
     function );

    return( -1 );
  }
  if( utf16_string_size == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-16 string size.",
     function );

    return( -1 );
  }
  switch( internal_xml_value->value_type & 0x7f )
  {
    case LIBFWEVT_VALUE_TYPE_STRING_UTF16:
      if( data_segment->data_size == 0 )
      {
        result = 1;
      }
      else if( escape_characters == 0 )
      {
        result = libuna_utf16_string_size_from_utf16_stream(
                  data_segment->data,
                  data_segment->data_size,
                  LIBUNA_ENDIAN_LITTLE,
                  &safe_utf16_string_size,
                  error );
      }
      else
      {
        result = libfwevt_utf16_xml_string_size_from_utf16_stream(
                  data_segment->data,
                  data_segment->data_size,
                  LIBUNA_ENDIAN_LITTLE,
                  &safe_utf16_string_size,
                  error );
      }
      break;

    case LIBFWEVT_VALUE_TYPE_STRING_BYTE_STREAM:
      if( data_segment->data_size == 0 )
      {
        result = 1;
      }
      else
      {
/* TODO pass codepage */
        result = libuna_utf16_string_size_from_byte_stream(
                  data_segment->data,
                  data_segment->data_size,
                  LIBUNA_CODEPAGE_WINDOWS_1252,
                  &safe_utf16_string_size,
                  error );
      }
/* TODO add support for escape_characters */
      break;

    case LIBFWEVT_VALUE_TYPE_INTEGER_8BIT:
      result = libfwevt_integer_as_signed_decimal_get_string_size(
                data_segment->value_64bit,
                8,
                &safe_utf16_string_size,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_INTEGER_16BIT:
      result = libfwevt_integer_as_signed_decimal_get_string_size(
                data_segment->value_64bit,
                16,
                &safe_utf16_string_size,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_INTEGER_32BIT:
      result = libfwevt_integer_as_signed_decimal_get_string_size(
                data_segment->value_64bit,
                32,
                &safe_utf16_string_size,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_INTEGER_64BIT:
      result = libfwevt_integer_as_signed_decimal_get_string_size(
                data_segment->value_64bit,
                64,
                &safe_utf16_string_size,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_8BIT:
    case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_16BIT:
    case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_32BIT:
    case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_64BIT:
      result = libfwevt_integer_as_unsigned_decimal_get_string_size(
                data_segment->value_64bit,
                &safe_utf16_string_size,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_FLOATING_POINT_32BIT:
      result = libfwevt_float32_get_string_size(
                (uint32_t) data_segment->value_64bit,
                &safe_utf16_string_size,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_FLOATING_POINT_64BIT:
      result = libfwevt_float64_get_string_size(
                data_segment->value_64bit,
                &safe_utf16_string_size,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_BOOLEAN:
      if( data_segment->value_64bit == 0 )
      {
        safe_utf16_string_size += 6;
      }
      else
      {
        safe_utf16_string_size += 5;
      }
      result = 1;

      break;

    case LIBFWEVT_VALUE_TYPE_BINARY_DATA:
      if( data_segment->data_size == 0 )
      {
        result = 1;
      }
      else
      {
        format_flags = LIBUNA_BASE16_VARIANT_CASE_UPPER | LIBUNA_BASE16_VARIANT_CHARACTER_LIMIT_NONE;

        if( _BYTE_STREAM_HOST_IS_ENDIAN_BIG )
        {
          format_flags |= LIBUNA_BASE16_VARIANT_ENCODING_UTF16_BIG_ENDIAN;
        }
        else if( _BYTE_STREAM_HOST_IS_ENDIAN_LITTLE )
        {
          format_flags |= LIBUNA_BASE16_VARIANT_ENCODING_UTF16_LITTLE_ENDIAN;
        }
        result = libuna_base16_stream_size_from_byte_stream(
                  data_segment->data,
                  data_segment->data_size,
                  &base16_stream_size,
                  format_flags,
                  error );

        if( result == 1 )
        {
          safe_utf16_string_size += ( base16_stream_size / 2 ) + 1;
        }
      }
      break;

    case LIBFWEVT_VALUE_TYPE_GUID:
      result = libfguid_identifier_get_string_size(
                data_segment->guid,
                &safe_utf16_string_size,
                LIBFGUID_STRING_FORMAT_FLAG_USE_UPPER_CASE | LIBFGUID_STRING_FORMAT_FLAG_USE_SURROUNDING_BRACES,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_FILETIME:
      result = libfdatetime_filetime_get_string_size(
                data_segment->filetime,
                &safe_utf16_string_size,
                LIBFDATETIME_STRING_FORMAT_TYPE_ISO8601 | LIBFDATETIME_STRING_FORMAT_FLAG_DATE_TIME_NANO_SECONDS | LIBFDATETIME_STRING_FORMAT_FLAG_TIMEZONE_INDICATOR,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_SYSTEMTIME:
      result = libfdatetime_systemtime_get_string_size(
                data_segment->systemtime,
                &safe_utf16_string_size,
                LIBFDATETIME_STRING_FORMAT_TYPE_ISO8601 | LIBFDATETIME_STRING_FORMAT_FLAG_DATE_TIME_NANO_SECONDS | LIBFDATETIME_STRING_FORMAT_FLAG_TIMEZONE_INDICATOR,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_NT_SECURITY_IDENTIFIER:
      result = libfwnt_security_identifier_get_string_size(
                data_segment->security_identifier,
                &safe_utf16_string_size,
          0,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_HEXADECIMAL_INTEGER_32BIT:
      safe_utf16_string_size = 11;

      result = 1;
      break;

    case LIBFWEVT_VALUE_TYPE_HEXADECIMAL_INTEGER_64BIT:
      safe_utf16_string_size = 19;

      result = 1;
      break;

    default:
      break;
  }
  if( result != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
     "%s: unable to determine size UTF-16 string of data segment: %d.",
     function,
     data_segment_index );

    return( -1 );
  }
  *utf16_string_size = safe_utf16_string_size;

  return( 1 );
}

/* Retrieves the data segment formatted as an UTF-16 string
 * Returns 1 if successful or -1 on error
 */
int libfwevt_internal_xml_value_get_data_segment_as_utf16_string(
     libfwevt_internal_xml_value_t *internal_xml_value,
     int data_segment_index,
     libfwevt_data_segment_t *data_segment,
     uint16_t *utf16_string,
     size_t utf16_string_size,
     size_t *utf16_string_index,
     uint8_t escape_characters,
     libcerror_error_t **error )
{
  static char *function          = "libfwevt_internal_xml_value_get_data_segment_as_utf16_string";
  size_t base16_stream_index     = 0;
  size_t safe_utf16_string_index = 0;
  uint32_t format_flags          = 0;
  uint8_t number_of_characters   = 0;
  int result                     = 0;

  if( internal_xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  if( data_segment == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid data segment.",
     function );

    return( -1 );
  }
  if( utf16_string == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-16 string.",
     function );

    return( -1 );
  }
  if( utf16_string_size > (size_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid UTF-16 string size value exceeds maximum.",
     function );

    return( -1 );
  }
  if( utf16_string_index == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-16 string index.",
     function );

    return( -1 );
  }
  if( libfwevt_internal_xml_value_get_data_segment_with_cached_value(
       internal_xml_value,
       data_segment_index,
       &data_segment,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve data segment: %d.",
     function,
     data_segment_index );

    return( -1 );
  }
  switch( internal_xml_value->value_type & 0x7f )
  {
    case LIBFWEVT_VALUE_TYPE_STRING_UTF16:
      if( data_segment->data_size == 0 )
      {
        result = 1;
      }
      else if( escape_characters == 0 )
      {
        result = libuna_utf16_string_with_index_copy_from_utf16_stream(
                  utf16_string,
                  utf16_string_size,
                  utf16_string_index,
                  data_segment->data,
                  data_segment->data_size,
                  LIBUNA_ENDIAN_LITTLE,
                  error );
      }
      else
      {
        result = libfwevt_utf16_xml_string_with_index_copy_from_utf16_stream(
                  utf16_string,
                  utf16_string_size,
                  utf16_string_index,
                  data_segment->data,
                  data_segment->data_size,
                  LIBUNA_ENDIAN_LITTLE,
                  error );
      }
      break;

    case LIBFWEVT_VALUE_TYPE_STRING_BYTE_STREAM:
/* TODO pass codepage */
      result = libuna_utf16_string_with_index_copy_from_byte_stream(
                utf16_string,
                utf16_string_size,
                utf16_string_index,
                data_segment->data,
                data_segment->data_size,
                LIBUNA_CODEPAGE_WINDOWS_1252,
                error );
/* TODO add support for escape_characters */
      break;

    case LIBFWEVT_VALUE_TYPE_INTEGER_8BIT:
      result = libfwevt_integer_as_signed_decimal_copy_to_utf16_string_with_index(
                data_segment->value_64bit,
                8,
                utf16_string,
                utf16_string_size,
                utf16_string_index,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_INTEGER_16BIT:
      result = libfwevt_integer_as_signed_decimal_copy_to_utf16_string_with_index(
                data_segment->value_64bit,
                16,
                utf16_string,
                utf16_string_size,
                utf16_string_index,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_INTEGER_32BIT:
      result = libfwevt_integer_as_signed_decimal_copy_to_utf16_string_with_index(
                data_segment->value_64bit,
                32,
                utf16_string,
                utf16_string_size,
                utf16_string_index,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_INTEGER_64BIT:
      result = libfwevt_integer_as_signed_decimal_copy_to_utf16_string_with_index(
                data_segment->value_64bit,
                64,
                utf16_string,
                utf16_string_size,
                utf16_string_index,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_8BIT:
    case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_16BIT:
    case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_32BIT:
    case LIBFWEVT_VALUE_TYPE_UNSIGNED_INTEGER_64BIT:
      result = libfwevt_integer_as_unsigned_decimal_copy_to_utf16_string_with_index(
                data_segment->value_64bit,
                utf16_string,
                utf16_string_size,
                utf16_string_index,
                error );
      break;


    case LIBFWEVT_VALUE_TYPE_FLOATING_POINT_32BIT:
      result = libfwevt_float32_copy_to_utf16_string_with_index(
                (uint32_t) data_segment->value_64bit,
                utf16_string,
                utf16_string_size,
                utf16_string_index,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_FLOATING_POINT_64BIT:
      result = libfwevt_float64_copy_to_utf16_string_with_index(
                data_segment->value_64bit,
                utf16_string,
                utf16_string_size,
                utf16_string_index,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_BOOLEAN:
      if( data_segment->value_64bit == 0 )
      {
        number_of_characters = 6;
      }
      else
      {
        number_of_characters = 5;
      }
      safe_utf16_string_index = *utf16_string_index;

      if( ( number_of_characters > utf16_string_size )
       || ( safe_utf16_string_index > ( utf16_string_size - number_of_characters ) ) )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
         LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
         "%s: invalid UTF-16 string size value too small.",
         function );

        return( -1 );
      }
      if( data_segment->value_64bit == 0 )
      {
        utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'f';
        utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'a';
        utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'l';
        utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 's';
        utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'e';
      }
      else
      {
        utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 't';
        utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'r';
        utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'u';
        utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'e';
      }
      utf16_string[ safe_utf16_string_index++ ] = 0;

      *utf16_string_index = safe_utf16_string_index;

      result = 1;

      break;

    case LIBFWEVT_VALUE_TYPE_BINARY_DATA:
      base16_stream_index = *utf16_string_index * 2;
      format_flags        = LIBUNA_BASE16_VARIANT_CASE_UPPER | LIBUNA_BASE16_VARIANT_CHARACTER_LIMIT_NONE;

      if( _BYTE_STREAM_HOST_IS_ENDIAN_BIG )
      {
        format_flags |= LIBUNA_BASE16_VARIANT_ENCODING_UTF16_BIG_ENDIAN;
      }
      else if( _BYTE_STREAM_HOST_IS_ENDIAN_LITTLE )
      {
        format_flags |= LIBUNA_BASE16_VARIANT_ENCODING_UTF16_LITTLE_ENDIAN;
      }
      result = libuna_base16_stream_with_index_copy_from_byte_stream(
                (uint8_t *) utf16_string,
                utf16_string_size * 2,
                &base16_stream_index,
                data_segment->data,
                data_segment->data_size,
                format_flags,
                error );

      if( result == 1 )
      {
        *utf16_string_index = ( base16_stream_index / 2 ) + 1;
      }
      break;

    case LIBFWEVT_VALUE_TYPE_GUID:
      result = libfguid_identifier_copy_to_utf16_string_with_index(
                data_segment->guid,
                utf16_string,
                utf16_string_size,
                utf16_string_index,
                LIBFGUID_STRING_FORMAT_FLAG_USE_UPPER_CASE | LIBFGUID_STRING_FORMAT_FLAG_USE_SURROUNDING_BRACES,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_FILETIME:
      result = libfdatetime_filetime_copy_to_utf16_string_with_index(
                data_segment->filetime,
                utf16_string,
                utf16_string_size,
                utf16_string_index,
                LIBFDATETIME_STRING_FORMAT_TYPE_ISO8601 | LIBFDATETIME_STRING_FORMAT_FLAG_DATE_TIME_NANO_SECONDS | LIBFDATETIME_STRING_FORMAT_FLAG_TIMEZONE_INDICATOR,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_SYSTEMTIME:
      result = libfdatetime_systemtime_copy_to_utf16_string_with_index(
                data_segment->systemtime,
                utf16_string,
                utf16_string_size,
                utf16_string_index,
                LIBFDATETIME_STRING_FORMAT_TYPE_ISO8601 | LIBFDATETIME_STRING_FORMAT_FLAG_DATE_TIME_NANO_SECONDS | LIBFDATETIME_STRING_FORMAT_FLAG_TIMEZONE_INDICATOR,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_NT_SECURITY_IDENTIFIER:
      result = libfwnt_security_identifier_copy_to_utf16_string_with_index(
                data_segment->security_identifier,
                utf16_string,
                utf16_string_size,
                utf16_string_index,
          0,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_HEXADECIMAL_INTEGER_32BIT:
      result = libfwevt_integer_as_hexadecimal_copy_to_utf16_string_with_index(
                data_segment->value_64bit,
                32,
                utf16_string,
                utf16_string_size,
                utf16_string_index,
                error );
      break;

    case LIBFWEVT_VALUE_TYPE_HEXADECIMAL_INTEGER_64BIT:
      result = libfwevt_integer_as_hexadecimal_copy_to_utf16_string_with_index(
                data_segment->value_64bit,
                64,
                utf16_string,
                utf16_string_size,
                utf16_string_index,
                error );
      break;

    default:
      break;
  }
  if( result != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
     "%s: unable to copy data segment: %d to UTF-16 string.",
     function,
     data_segment_index );

    return( -1 );
  }
  return( 1 );
}

/* Retrieves the size of the value data formatted as an UTF-16 string
 * The string size includes the end of string character
 * Returns 1 if successful or -1 on error
 */
int libfwevt_internal_xml_value_get_data_as_utf16_string_size(
     libfwevt_internal_xml_value_t *internal_xml_value,
     size_t *utf16_string_size,
     uint8_t escape_characters,
     libcerror_error_t **error )
{
  libfwevt_data_segment_t *data_segment = NULL;
  static char *function                 = "libfwevt_internal_xml_value_get_data_as_utf16_string_size";
  size_t data_segment_size              = 0;
  size_t safe_utf16_string_size         = 0;
  int data_segment_index                = 0;
  int number_of_data_segments           = 0;

  if( internal_xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  if( utf16_string_size == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-16 string size.",
     function );

    return( -1 );
  }
  if( libcdata_array_get_number_of_entries(
       internal_xml_value->data_segments,
       &number_of_data_segments,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve number of data segments.",
     function );

    return( -1 );
  }
  for( data_segment_index = 0;
       data_segment_index < number_of_data_segments;
       data_segment_index++ )
  {
    if( libfwevt_internal_xml_value_get_data_segment_with_cached_value(
         internal_xml_value,
         data_segment_index,
         &data_segment,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve data segment: %d.",
       function,
       data_segment_index );

      return( -1 );
    }
    if( libfwevt_internal_xml_value_get_data_segment_as_utf16_string_size(
         internal_xml_value,
         data_segment_index,
         data_segment,
         &data_segment_size,
         escape_characters,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve UTF-16 string size of element data segment: %d.",
       function,
       data_segment_index );

      return( -1 );
    }
    if( data_segment_size > 1 )
    {
      safe_utf16_string_size += data_segment_size - 1;
    }
  }
  if( ( number_of_data_segments == 1 )
   && ( data_segment != NULL )
   && ( safe_utf16_string_size == 1 ) )
  {
    if( ( data_segment->data_size >= 2 )
     && ( data_segment->data[ 0 ] == '\n' )
     && ( data_segment->data[ 1 ] == 0 ) )
    {
      /* The value data consists of a single linefeed consider it empty
       */
      safe_utf16_string_size = 0;
    }
  }
  if( safe_utf16_string_size > 0 )
  {
    safe_utf16_string_size++;
  }
  *utf16_string_size = safe_utf16_string_size;

  return( 1 );
}

/* Retrieves the data formatted as an UTF-16 string
 * The string size should include the end of string character
 * Returns 1 if successful or -1 on error
 */
int libfwevt_internal_xml_value_get_data_as_utf16_string_with_index(
     libfwevt_internal_xml_value_t *internal_xml_value,
     uint16_t *utf16_string,
     size_t utf16_string_size,
     size_t *utf16_string_index,
     uint8_t escape_characters,
     libcerror_error_t **error )
{
  libfwevt_data_segment_t *data_segment = NULL;
  static char *function                 = "libfwevt_internal_xml_value_get_data_as_utf16_string_with_index";
  size_t safe_utf16_string_index        = 0;
  int data_segment_index                = 0;
  int number_of_data_segments           = 0;

  if( internal_xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  if( utf16_string == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-16 string.",
     function );

    return( -1 );
  }
  if( utf16_string_size > (size_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid UTF-16 string size value exceeds maximum.",
     function );

    return( -1 );
  }
  if( utf16_string_index == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-16 string index.",
     function );

    return( -1 );
  }
  safe_utf16_string_index = *utf16_string_index;

  if( libcdata_array_get_number_of_entries(
       internal_xml_value->data_segments,
       &number_of_data_segments,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve number of data segments.",
     function );

    return( -1 );
  }
  for( data_segment_index = 0;
       data_segment_index < number_of_data_segments;
       data_segment_index++ )
  {
    if( libfwevt_internal_xml_value_get_data_segment_with_cached_value(
         internal_xml_value,
         data_segment_index,
         &data_segment,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve data segment: %d.",
       function,
       data_segment_index );

      return( -1 );
    }
    if( libfwevt_internal_xml_value_get_data_segment_as_utf16_string(
         internal_xml_value,
         data_segment_index,
         data_segment,
         utf16_string,
         utf16_string_size,
         &safe_utf16_string_index,
         escape_characters,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
       "%s: unable to copy data segment: %d to UTF-16 string.",
       function,
       data_segment_index );

      return( -1 );
    }
    safe_utf16_string_index--;
  }
  if( ( number_of_data_segments == 1 )
   && ( data_segment != NULL )
   && ( safe_utf16_string_index == 1 ) )
  {
    if( ( data_segment->data_size >= 2 )
     && ( data_segment->data[ 0 ] == '\n' )
     && ( data_segment->data[ 1 ] == 0 ) )
    {
      /* The value data consists of a single linefeed consider it empty
       */
      safe_utf16_string_index = 0;
    }
  }
  if( safe_utf16_string_index > 0 )
  {
    if( safe_utf16_string_index >= utf16_string_size  )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
       LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
       "%s: invalid UTF-16 string size value too small.",
       function );

      return( -1 );
    }
    utf16_string[ safe_utf16_string_index++ ] = 0;
  }
  *utf16_string_index = safe_utf16_string_index;

  return( 1 );
}

/* Retrieves the size of an UTF-16 encoded string of the value data
 * Returns 1 if successful or -1 on error
 */
int libfwevt_xml_value_get_utf16_string_size(
     libfwevt_xml_value_t *xml_value,
     size_t *utf16_string_size,
     libcerror_error_t **error )
{
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  static char *function                             = "libfwevt_xml_value_get_utf16_string_size";

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  internal_xml_value = (libfwevt_internal_xml_value_t *) xml_value;

  if( libfwevt_internal_xml_value_get_data_as_utf16_string_size(
       internal_xml_value,
       utf16_string_size,
       0,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve size of UTF-16 string.",
     function );

    return( -1 );
  }
  return( 1 );
}

/* Copies the value data to an UTF-16 encoded string
 * Returns 1 if successful or -1 on error
 */
int libfwevt_xml_value_copy_to_utf16_string(
     libfwevt_xml_value_t *xml_value,
     uint16_t *utf16_string,
     size_t utf16_string_size,
     libcerror_error_t **error )
{
  static char *function = "libfwevt_xml_value_copy_to_utf16_string";

  if( libfwevt_xml_value_get_data_as_utf16_string(
       xml_value,
       utf16_string,
       utf16_string_size,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve size of UTF-16 string.",
     function );

    return( -1 );
  }
  return( 1 );
}

/* Retrieves the size of the value data formatted as an UTF-16 string
 * The string size includes the end of string character
 * Returns 1 if successful or -1 on error
 */
int libfwevt_xml_value_get_data_as_utf16_string_size(
     libfwevt_xml_value_t *xml_value,
     size_t *utf16_string_size,
     libcerror_error_t **error )
{
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  static char *function                             = "libfwevt_xml_value_get_data_as_utf16_string_size";

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  internal_xml_value = (libfwevt_internal_xml_value_t *) xml_value;

  if( libfwevt_internal_xml_value_get_data_as_utf16_string_size(
       internal_xml_value,
       utf16_string_size,
       0,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve UTF-16 string size.",
     function );

    return( -1 );
  }
  return( 1 );
}

/* Retrieves the data formatted as an UTF-16 string
 * The string size should include the end of string character
 * Returns 1 if successful or -1 on error
 */
int libfwevt_xml_value_get_data_as_utf16_string(
     libfwevt_xml_value_t *xml_value,
     uint16_t *utf16_string,
     size_t utf16_string_size,
     libcerror_error_t **error )
{
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  static char *function                             = "libfwevt_xml_value_get_data_as_utf16_string";
  size_t utf16_string_index                         = 0;

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  internal_xml_value = (libfwevt_internal_xml_value_t *) xml_value;

  if( libfwevt_internal_xml_value_get_data_as_utf16_string_with_index(
       internal_xml_value,
       utf16_string,
       utf16_string_size,
       &utf16_string_index,
       0,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve size of UTF-16 string.",
     function );

    return( -1 );
  }
  return( 1 );
}

#if defined( HAVE_DEBUG_OUTPUT )

/* Prints the value
 * Returns 1 if successful or -1 on error
 */
int libfwevt_xml_value_debug_print(
     libfwevt_xml_value_t *xml_value,
     uint8_t escape_characters,
     libcerror_error_t **error )
{
  system_character_t *value_string                  = NULL;
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  static char *function                             = "libfwevt_xml_value_debug_print";
  size_t value_string_index                         = 0;
  size_t value_string_size                          = 0;
  int result                                        = 0;

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  internal_xml_value = (libfwevt_internal_xml_value_t *) xml_value;

#if defined( HAVE_WIDE_SYSTEM_CHARACTER )
  result = libfwevt_internal_xml_value_get_data_as_utf16_string_size(
      internal_xml_value,
      &value_string_size,
      escape_characters,
      error );
#else
  result = libfwevt_internal_xml_value_get_data_as_utf8_string_size(
      internal_xml_value,
      &value_string_size,
      escape_characters,
      error );
#endif
  if( result != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to determine size of value string.",
     function );

    goto on_error;
  }
  if( value_string_size > 0 )
  {
    if( value_string_size > (size_t) ( SSIZE_MAX / sizeof( system_character_t ) ) )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM,
       "%s: invalid name string size value exceeds maximum.",
       function );

      goto on_error;
    }
    value_string = system_string_allocate(
                    value_string_size );

    if( value_string == NULL )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_MEMORY,
       LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
       "%s: unable to create value string.",
       function );

      goto on_error;
    }
#if defined( HAVE_WIDE_SYSTEM_CHARACTER )
    result = libfwevt_internal_xml_value_get_data_as_utf16_string_with_index(
        internal_xml_value,
        (libuna_utf16_character_t *) value_string,
        value_string_size,
        &value_string_index,
        escape_characters,
        error );
#else
    result = libfwevt_internal_xml_value_get_data_as_utf8_string_with_index(
        internal_xml_value,
        (libuna_utf8_character_t *) value_string,
        value_string_size,
        &value_string_index,
        escape_characters,
        error );
#endif
    if( result != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve value string.",
       function );

      goto on_error;
    }
    libcnotify_printf(
     "%" PRIs_SYSTEM "",
     value_string );

    memory_free(
     value_string );
  }
  return( 1 );

on_error:
  if( value_string != NULL )
  {
    memory_free(
     value_string );
  }
  return( -1 );
}

/* Prints the value of a specific data segment
 * Returns 1 if successful or -1 on error
 */
int libfwevt_xml_value_debug_print_data_segment(
     libfwevt_xml_value_t *xml_value,
     int data_segment_index,
     uint8_t escape_characters,
     libcerror_error_t **error )
{
  libfwevt_data_segment_t *data_segment             = NULL;
  libfwevt_internal_xml_value_t *internal_xml_value = NULL;
  system_character_t *value_string                  = NULL;
  static char *function                             = "libfwevt_xml_value_debug_print_data_segment";
  size_t value_string_index                         = 0;
  size_t value_string_size                          = 0;
  int result                                        = 0;

  if( xml_value == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid XML value.",
     function );

    return( -1 );
  }
  internal_xml_value = (libfwevt_internal_xml_value_t *) xml_value;

  if( libfwevt_internal_xml_value_get_data_segment_with_cached_value(
       internal_xml_value,
       data_segment_index,
       &data_segment,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve data segment: %d.",
     function,
     data_segment_index );

    return( -1 );
  }
#if defined( HAVE_WIDE_SYSTEM_CHARACTER )
  result = libfwevt_internal_xml_value_get_data_segment_as_utf16_string_size(
      internal_xml_value,
      data_segment_index,
            data_segment,
      &value_string_size,
      escape_characters,
      error );
#else
  result = libfwevt_internal_xml_value_get_data_segment_as_utf8_string_size(
      internal_xml_value,
      data_segment_index,
            data_segment,
      &value_string_size,
      escape_characters,
      error );
#endif
  if( result != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to determine size of value string of data segment: %d.",
     function,
     data_segment_index );

    goto on_error;
  }
  if( value_string_size > 0 )
  {
    if( value_string_size > (size_t) ( SSIZE_MAX / sizeof( system_character_t ) ) )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM,
       "%s: invalid name string size value exceeds maximum.",
       function );

      goto on_error;
    }
    value_string = system_string_allocate(
                    value_string_size );

    if( value_string == NULL )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_MEMORY,
       LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
       "%s: unable to create value string.",
       function );

      goto on_error;
    }
#if defined( HAVE_WIDE_SYSTEM_CHARACTER )
    result = libfwevt_internal_xml_value_get_data_segment_as_utf16_string(
        internal_xml_value,
        data_segment_index,
              data_segment,
        (libuna_utf16_character_t *) value_string,
        value_string_size,
        &value_string_index,
              escape_characters,
        error );
#else
    result = libfwevt_internal_xml_value_get_data_segment_as_utf8_string(
        internal_xml_value,
        data_segment_index,
              data_segment,
        (libuna_utf8_character_t *) value_string,
        value_string_size,
        &value_string_index,
              escape_characters,
        error );
#endif
    if( result != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve value string of data segment: %d.",
       function,
       data_segment_index );

      goto on_error;
    }
    libcnotify_printf(
     "%" PRIs_SYSTEM "",
     value_string );

    memory_free(
     value_string );
  }
  return( 1 );

on_error:
  if( value_string != NULL )
  {
    memory_free(
     value_string );
  }
  return( -1 );
}

#endif /* defined( HAVE_DEBUG_OUTPUT ) */


Coverage Report

Created: 2025-06-13 07:22