/*

 * Descriptor file functions

 *

 * Copyright (C) 2009-2026, Joachim Metz <joachim.metz@gmail.com>

 *

 * Refer to AUTHORS for acknowledgements.

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU Lesser General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public License

 * along with this program.  If not, see <https://www.gnu.org/licenses/>.

 */

#include <common.h>

#include <file_stream.h>

#include <memory.h>

#include <narrow_string.h>

#include <types.h>

#include "libvmdk_definitions.h"

#include "libvmdk_descriptor_file.h"

#include "libvmdk_extent_values.h"

#include "libvmdk_libcdata.h"

#include "libvmdk_libcerror.h"

#include "libvmdk_libclocale.h"

#include "libvmdk_libcnotify.h"

#include "libvmdk_libcsplit.h"

#include "libvmdk_libfvalue.h"

#include "libvmdk_libuna.h"

const char *vmdk_descriptor_file_signature                       = "# Disk DescriptorFile";

const char *vmdk_descriptor_file_extent_section_signature        = "# Extent description";

const char *vmdk_descriptor_file_change_tracking_file_signature  = "# Change Tracking File";

const char *vmdk_descriptor_file_disk_database_section_signature = "# The Disk Data Base";

/* Creates a descriptor file

 * Make sure the value descriptor_file is referencing, is set to NULL

 * Returns 1 if successful or -1 on error

 */

int libvmdk_descriptor_file_initialize(

     libvmdk_descriptor_file_t **descriptor_file,

     libcerror_error_t **error )

{

  static char *function = "libvmdk_descriptor_file_initialize";

  if( descriptor_file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid descriptor file.",

     function );

    return( -1 );

  }

  if( *descriptor_file != NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,

     "%s: invalid descriptor file value already set.",

     function );

    return( -1 );

  }

  *descriptor_file = memory_allocate_structure(

                      libvmdk_descriptor_file_t );

  if( *descriptor_file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,

     "%s: unable to create descriptor file.",

     function );

    goto on_error;

  }

  if( memory_set(

       *descriptor_file,

       0,

       sizeof( libvmdk_descriptor_file_t ) ) == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_SET_FAILED,

     "%s: unable to clear descriptor file.",

     function );

    memory_free(

     *descriptor_file );

    *descriptor_file = NULL;

    return( -1 );

  }

  return( 1 );

on_error:

  if( *descriptor_file != NULL )

  {

    memory_free(

     *descriptor_file );

    *descriptor_file = NULL;

  }

  return( -1 );

}

/* Frees a descriptor file

 * Returns 1 if successful or -1 on error

 */

int libvmdk_descriptor_file_free(

     libvmdk_descriptor_file_t **descriptor_file,

     libcerror_error_t **error )

{

  static char *function = "libvmdk_descriptor_file_free";

  int result            = 1;

  if( descriptor_file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid descriptor file.",

     function );

    return( -1 );

  }

  if( *descriptor_file != NULL )

  {

    if( ( *descriptor_file )->parent_filename != NULL )

    {

      memory_free(

       ( *descriptor_file )->parent_filename );

    }

    memory_free(

     *descriptor_file );

    *descriptor_file = NULL;

  }

  return( result );

}

/* Reads the descriptor file

 * Returns the 1 if successful or -1 on error

 */

int libvmdk_descriptor_file_read_file_io_handle(

     libvmdk_descriptor_file_t *descriptor_file,

     libbfio_handle_t *file_io_handle,

     libcdata_array_t *extents_values_array,

     libcerror_error_t **error )

{

  uint8_t *descriptor_data = NULL;

  static char *function    = "libvmdk_descriptor_file_read_file_io_handle";

  size64_t file_size       = 0;

  ssize_t read_count       = 0;

  if( descriptor_file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid descriptor file.",

     function );

    return( -1 );

  }

  if( libbfio_handle_get_size(

       file_io_handle,

       &file_size,

       error ) == -1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_GET_FAILED,

     "%s: unable to determine size of file IO handle entry.",

     function );

    goto on_error;

  }

  if( ( file_size == 0 )

   || ( file_size > (size64_t) MEMORY_MAXIMUM_ALLOCATION_SIZE ) )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

     "%s: invalid file size value out of bounds.",

     function );

    goto on_error;

  }

  descriptor_data = (uint8_t *) memory_allocate(

                                 sizeof( uint8_t ) * (size_t) file_size );

  if( descriptor_data == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,

     "%s: unable to create descriptor data.",

     function );

    goto on_error;

  }

  read_count = libbfio_handle_read_buffer_at_offset(

                file_io_handle,

                descriptor_data,

                (size_t) file_size,

                0,

                error );

  if( read_count != (ssize_t) file_size )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_READ_FAILED,

     "%s: unable to read data at offset: 0 (0x00000000).",

     function );

    goto on_error;

  }

  if( libvmdk_descriptor_file_read_string(

       descriptor_file,

       (char *) descriptor_data,

       (size_t) file_size,

       extents_values_array,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_READ_FAILED,

     "%s: unable to read descriptor from string.",

     function );

    goto on_error;

  }

  memory_free(

   descriptor_data );

  descriptor_data = NULL;

  return( 1 );

on_error:

  if( descriptor_data != NULL )

  {

    memory_free(

     descriptor_data );

  }

  return( -1 );

}

/* Reads the descriptor file from a string

 * Returns the 1 if successful or -1 on error

 */

int libvmdk_descriptor_file_read_string(

     libvmdk_descriptor_file_t *descriptor_file,

     const char *value_string,

     size_t value_string_size,

     libcdata_array_t *extents_values_array,

     libcerror_error_t **error )

{

  libcsplit_narrow_split_string_t *lines = NULL;

  static char *function                  = "libvmdk_descriptor_file_read_string";

  int line_index                         = 0;

  int number_of_lines                    = 0;

  int result                             = 0;

  if( descriptor_file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid descriptor file.",

     function );

    return( -1 );

  }

  if( libcsplit_narrow_string_split(

       value_string,

       value_string_size,

       '\n',

       &lines,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,

     "%s: unable to split file data into lines.",

     function );

    goto on_error;

  }

  if( libcsplit_narrow_split_string_get_number_of_segments(

       lines,

       &number_of_lines,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

     "%s: unable to retrieve number of lines.",

     function );

    goto on_error;

  }

  if( libvmdk_descriptor_file_read_signature(

       lines,

       number_of_lines,

       &line_index,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_READ_FAILED,

     "%s: unable to read descriptor file signature.",

     function );

    goto on_error;

  }

  if( libvmdk_descriptor_file_read_header(

       descriptor_file,

       lines,

       number_of_lines,

       &line_index,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_READ_FAILED,

     "%s: unable to read descriptor file header.",

     function );

    goto on_error;

  }

  if( libvmdk_descriptor_file_read_extents(

       descriptor_file,

       lines,

       number_of_lines,

       &line_index,

       extents_values_array,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_READ_FAILED,

     "%s: unable to read extents.",

     function );

    goto on_error;

  }

  result = libvmdk_descriptor_file_read_change_tracking_file(

            descriptor_file,

            lines,

            number_of_lines,

            &line_index,

            error );

  if( result == -1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_READ_FAILED,

     "%s: unable to read change tracking file.",

     function );

    goto on_error;

  }

  if( libvmdk_descriptor_file_read_disk_database(

       descriptor_file,

       lines,

       number_of_lines,

       &line_index,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_READ_FAILED,

     "%s: unable to read disk database.",

     function );

    goto on_error;

  }

  if( libcsplit_narrow_split_string_free(

       &lines,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

     "%s: unable to free lines.",

     function );

    goto on_error;

  }

  return( 1 );

on_error:

  if( lines != NULL )

  {

    libcsplit_narrow_split_string_free(

     &lines,

     NULL );

  }

  return( -1 );

}

/* Reads the signature from the descriptor file

 * Returns the 1 if successful, 0 if no signature was found or -1 on error

 */

int libvmdk_descriptor_file_read_signature(

     libcsplit_narrow_split_string_t *lines,

     int number_of_lines,

     int *line_index,

     libcerror_error_t **error )

{

  static char *function            = "libvmdk_descriptor_file_read_signature";

  char *line_string_segment        = NULL;

  size_t line_string_segment_index = 0;

  size_t line_string_segment_size  = 0;

  int result                       = 0;

  int safe_line_index              = 0;

  if( line_index == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid line index.",

     function );

    return( -1 );

  }

  if( number_of_lines <= 0 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,

     "%s: invalid number of lines value out of bounds.",

     function );

    return( -1 );

  }

  while( safe_line_index < number_of_lines )

  {

    if( libcsplit_narrow_split_string_get_segment_by_index(

         lines,

         safe_line_index,

         &line_string_segment,

         &line_string_segment_size,

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_GET_FAILED,

       "%s: unable to retrieve line: %d.",

       function,

       safe_line_index );

      return( -1 );

    }

    if( line_string_segment == NULL )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,

       "%s: missing line string segment: %d.",

       function,

       safe_line_index );

      return( -1 );

    }

    if( line_string_segment_size < 2 )

    {

      safe_line_index++;

      continue;

    }

    /* Ignore trailing white space

     */

    line_string_segment_index = line_string_segment_size - 2;

    while( line_string_segment_index > 0 )

    {

      if( ( line_string_segment[ line_string_segment_index ] != '\t' )

       && ( line_string_segment[ line_string_segment_index ] != '\n' )

       && ( line_string_segment[ line_string_segment_index ] != '\f' )

       && ( line_string_segment[ line_string_segment_index ] != '\v' )

       && ( line_string_segment[ line_string_segment_index ] != '\r' )

       && ( line_string_segment[ line_string_segment_index ] != ' ' ) )

      {

        break;

      }

      line_string_segment_index--;

      line_string_segment_size--;

    }

    /* Ignore leading white space

     */

    line_string_segment_index = 0;

    while( line_string_segment_index < line_string_segment_size )

    {

      if( ( line_string_segment[ line_string_segment_index ] != '\t' )

       && ( line_string_segment[ line_string_segment_index ] != '\n' )

       && ( line_string_segment[ line_string_segment_index ] != '\f' )

       && ( line_string_segment[ line_string_segment_index ] != '\v' )

       && ( line_string_segment[ line_string_segment_index ] != '\r' )

       && ( line_string_segment[ line_string_segment_index ] != ' ' ) )

      {

        break;

      }

      line_string_segment_index++;

      line_string_segment_size--;

    }

    /* Only allow comment or empty lines

     */

    if( line_string_segment_size > 1 )

    {

      if( line_string_segment[ line_string_segment_index ] == '#' )

      {

        if( ( line_string_segment_size == 22 )

         && ( narrow_string_compare_no_case(

               &( line_string_segment[ line_string_segment_index ] ),

               vmdk_descriptor_file_signature,

               21 ) == 0 ) )

        {

          result = 1;

          break;

        }

      }

      else if( line_string_segment[ line_string_segment_index ] != 0 )

      {

        break;

      }

    }

    safe_line_index++;

  }

  *line_index = safe_line_index;

  return( result );

}

/* Reads the header from the descriptor file

 * Returns the 1 if successful or -1 on error

 */

int libvmdk_descriptor_file_read_header(

     libvmdk_descriptor_file_t *descriptor_file,

     libcsplit_narrow_split_string_t *lines,

     int number_of_lines,

     int *line_index,

     libcerror_error_t **error )

{

  char *line_string_segment        = NULL;

  char *value                      = NULL;

  char *value_identifier           = NULL;

  static char *function            = "libvmdk_descriptor_file_read_header";

  size_t line_string_segment_index = 0;

  size_t line_string_segment_size  = 0;

  size_t value_identifier_length   = 0;

  size_t value_length              = 0;

  uint64_t value_64bit             = 0;

  int safe_line_index              = 0;

  if( descriptor_file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid descriptor file.",

     function );

    return( -1 );

  }

  if( line_index == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid line index.",

     function );

    return( -1 );

  }

  if( number_of_lines <= 0 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,

     "%s: invalid number of lines value out of bounds.",

     function );

    return( -1 );

  }

  safe_line_index = *line_index;

  if( ( safe_line_index < 0 )

   || ( safe_line_index >= number_of_lines ) )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,

     "%s: invalid line index value out of bounds.",

     function );

    return( -1 );

  }

  while( safe_line_index < number_of_lines )

  {

    if( libcsplit_narrow_split_string_get_segment_by_index(

         lines,

         safe_line_index,

         &line_string_segment,

         &line_string_segment_size,

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_GET_FAILED,

       "%s: unable to retrieve line: %d.",

       function,

       safe_line_index );

      goto on_error;

    }

    if( line_string_segment == NULL )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,

       "%s: missing line string segment: %d.",

       function,

       safe_line_index );

      goto on_error;

    }

    if( line_string_segment_size < 2 )

    {

      safe_line_index++;

      continue;

    }

    /* Ignore trailing white space

     */

    line_string_segment_index = line_string_segment_size - 2;

    while( line_string_segment_index > 0 )

    {

      if( ( line_string_segment[ line_string_segment_index ] != '\t' )

       && ( line_string_segment[ line_string_segment_index ] != '\n' )

       && ( line_string_segment[ line_string_segment_index ] != '\f' )

       && ( line_string_segment[ line_string_segment_index ] != '\v' )

       && ( line_string_segment[ line_string_segment_index ] != '\r' )

       && ( line_string_segment[ line_string_segment_index ] != ' ' ) )

      {

        break;

      }

      line_string_segment_index--;

      line_string_segment_size--;

    }

    /* Ignore leading white space

     */

    line_string_segment_index = 0;

    while( line_string_segment_index < line_string_segment_size )

    {

      if( ( line_string_segment[ line_string_segment_index ] != '\t' )

       && ( line_string_segment[ line_string_segment_index ] != '\n' )

       && ( line_string_segment[ line_string_segment_index ] != '\f' )

       && ( line_string_segment[ line_string_segment_index ] != '\v' )

       && ( line_string_segment[ line_string_segment_index ] != '\r' )

       && ( line_string_segment[ line_string_segment_index ] != ' ' ) )

      {

        break;

      }

      line_string_segment_index++;

    }

    /* Skip an empty line

     */

    if( ( line_string_segment_index >= line_string_segment_size )

     || ( line_string_segment[ line_string_segment_index ] == 0 ) )

    {

      safe_line_index++;

      continue;

    }

    if( ( line_string_segment_size - line_string_segment_index ) == 21 )

    {

      /* Check for the end of the header

       */

      if( narrow_string_compare_no_case(

           &( line_string_segment[ line_string_segment_index ] ),

           vmdk_descriptor_file_extent_section_signature,

           20 ) == 0 )

      {

        break;

      }

    }

    /* Determine the value identifier

     */

    value_identifier        = &( line_string_segment[ line_string_segment_index ] );

    value_identifier_length = 0;

    while( line_string_segment_index < line_string_segment_size )

    {

      if( ( line_string_segment[ line_string_segment_index ] == '\t' )

       || ( line_string_segment[ line_string_segment_index ] == '\n' )

       || ( line_string_segment[ line_string_segment_index ] == '\f' )

       || ( line_string_segment[ line_string_segment_index ] == '\v' )

       || ( line_string_segment[ line_string_segment_index ] == '\r' )

       || ( line_string_segment[ line_string_segment_index ] == ' ' )

       || ( line_string_segment[ line_string_segment_index ] == '=' ) )

      {

        break;

      }

      value_identifier_length++;

      line_string_segment_index++;

    }

    /* Skip a line not containing a value

     */

    if( ( line_string_segment_index >= line_string_segment_size )

     || ( line_string_segment[ line_string_segment_index ] == 0 ) )

    {

      safe_line_index++;

      continue;

    }

    /* Make sure the value identifier is terminated by an end of string

     */

    line_string_segment[ line_string_segment_index ] = 0;

    line_string_segment_index++;

    /* Ignore whitespace

     */

    while( line_string_segment_index < line_string_segment_size )

    {

      if( ( line_string_segment[ line_string_segment_index ] != '\t' )

       && ( line_string_segment[ line_string_segment_index ] != '\n' )

       && ( line_string_segment[ line_string_segment_index ] != '\f' )

       && ( line_string_segment[ line_string_segment_index ] != '\v' )

       && ( line_string_segment[ line_string_segment_index ] != '\r' )

       && ( line_string_segment[ line_string_segment_index ] != ' ' ) )

      {

        break;

      }

      line_string_segment_index++;

    }

    if( line_string_segment[ line_string_segment_index ] == '=' )

    {

      line_string_segment_index++;

      while( line_string_segment_index < line_string_segment_size )

      {

        if( ( line_string_segment[ line_string_segment_index ] != '\t' )

         && ( line_string_segment[ line_string_segment_index ] != '\n' )

         && ( line_string_segment[ line_string_segment_index ] != '\f' )

         && ( line_string_segment[ line_string_segment_index ] != '\v' )

         && ( line_string_segment[ line_string_segment_index ] != '\r' )

         && ( line_string_segment[ line_string_segment_index ] != ' ' ) )

        {

          break;

        }

        line_string_segment_index++;

      }

    }

    /* Skip a line not containing a value

     */

    if( ( line_string_segment_index >= line_string_segment_size )

     || ( line_string_segment[ line_string_segment_index ] == 0 ) )

    {

      safe_line_index++;

      continue;

    }

    /* Determine the value

     */

    value        = &( line_string_segment[ line_string_segment_index ] );

    value_length = line_string_segment_size - 1;

    /* Ingore quotes at the beginning of the value data

     */

    if( ( line_string_segment[ line_string_segment_index ] == '"' )

     || ( line_string_segment[ line_string_segment_index ] == '\'' ) )

    {

      line_string_segment_index++;

      value++;

      value_length--;

    }

    /* Ingore quotes at the end of the value data

     */

    if( ( line_string_segment[ value_length - 1 ] == '"' )

     || ( line_string_segment[ value_length - 1 ] == '\'' ) )

    {

      value_length--;

    }

    /* Make sure the value is terminated by an end of string

     */

    line_string_segment[ value_length ] = 0;

    value_length -= line_string_segment_index;

    if( value_identifier_length == 3 )

    {

      if( narrow_string_compare_no_case(

           value_identifier,

           "CID",

           3 ) == 0 )

      {

#if defined( HAVE_DEBUG_OUTPUT )

        if( libcnotify_verbose != 0 )

        {

          libcnotify_printf(

           "%s: content identifier\t\t\t: %s\n",

           function,

           value );

        }

#endif

        if( libfvalue_utf8_string_copy_to_integer(

             (uint8_t *) value,

             value_length,

             &value_64bit,

             64,

             LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL | LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR,

             error ) != 1 )

        {

          libcerror_error_set(

           error,

           LIBCERROR_ERROR_DOMAIN_RUNTIME,

           LIBCERROR_RUNTIME_ERROR_GET_FAILED,

           "%s: unable to determine content identifier value from string.",

           function );

          goto on_error;

        }

        if( value_64bit > (uint64_t) UINT32_MAX )

        {

          libcerror_error_set(

           error,

           LIBCERROR_ERROR_DOMAIN_RUNTIME,

           LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM,

           "%s: invalid content identifier value exceeds maximum.",

           function );

          goto on_error;

        }

        descriptor_file->content_identifier = (uint32_t) value_64bit;

      }

    }

    else if( value_identifier_length == 7 )

    {

      if( narrow_string_compare_no_case(

           value_identifier,

           "version",

           7 ) == 0 )

      {

#if defined( HAVE_DEBUG_OUTPUT )

        if( libcnotify_verbose != 0 )

        {

          libcnotify_printf(

           "%s: version\t\t\t\t: %s\n",

           function,

           value );

        }

#endif

        if( libfvalue_utf8_string_copy_to_integer(

             (uint8_t *) value,

             value_length,

             &value_64bit,

             64,

             LIBFVALUE_INTEGER_FORMAT_TYPE_DECIMAL_UNSIGNED,

             error ) != 1 )

        {

          libcerror_error_set(

           error,

           LIBCERROR_ERROR_DOMAIN_RUNTIME,

           LIBCERROR_RUNTIME_ERROR_GET_FAILED,

           "%s: unable to determine version value from string.",

           function );

          goto on_error;

        }

        if( value_64bit > (uint64_t) INT_MAX )

        {

          libcerror_error_set(

           error,

           LIBCERROR_ERROR_DOMAIN_RUNTIME,

           LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM,

           "%s: invalid version value exceeds maximum.",

           function );

          goto on_error;

        }

        descriptor_file->version = (int) value_64bit;

      }

    }

    else if( value_identifier_length == 8 )

    {

      if( narrow_string_compare_no_case(

           value_identifier,

           "encoding",

           8 ) == 0 )

      {

#if defined( HAVE_DEBUG_OUTPUT )

        if( libcnotify_verbose != 0 )

        {

          libcnotify_printf(

           "%s: encoding\t\t\t\t: %s\n",

           function,

           value );

        }

#endif

        if( ( value_length == 3 )

         && ( value[ 0 ] == 'G' )

         && ( value[ 1 ] == 'B' )

         && ( value[ 2 ] == 'K' ) )

        {

          descriptor_file->encoding = LIBUNA_CODEPAGE_WINDOWS_936;

        }

        else if( ( value_length == 4 )

              && ( value[ 0 ] == 'B' )

              && ( value[ 1 ] == 'i' )

              && ( value[ 2 ] == 'g' )

              && ( value[ 3 ] == '5' ) )

        {

          descriptor_file->encoding = LIBUNA_CODEPAGE_WINDOWS_950;

        }

        else if( ( value_length == 5 )

              && ( value[ 0 ] == 'U' )

              && ( value[ 1 ] == 'T' )

              && ( value[ 2 ] == 'F' )

              && ( value[ 3 ] == '-' )

              && ( value[ 4 ] == '8' ) )

        {

          descriptor_file->encoding = 0;

        }

        else if( ( value_length == 9 )

              && ( value[ 0 ] == 'S' )

              && ( value[ 1 ] == 'h' )

              && ( value[ 2 ] == 'i' )

              && ( value[ 3 ] == 'f' )

              && ( value[ 4 ] == 't' )

              && ( value[ 5 ] == '_' )

              && ( value[ 6 ] == 'J' )

              && ( value[ 7 ] == 'I' )

              && ( value[ 8 ] == 'S' ) )

        {

          descriptor_file->encoding = LIBUNA_CODEPAGE_WINDOWS_932;

        }

        else if( libclocale_codepage_copy_from_string(

                  &( descriptor_file->encoding ),

                  value,

                  value_length,