/*

 * Segment file reading/writing functions

 *

 * Copyright (C) 2006-2024, 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 <types.h>

#if defined( HAVE_SYS_TIME_H )

#include <sys/time.h>

#endif

#include <time.h>

#include "libewf_case_data.h"

#include "libewf_chunk_data.h"

#include "libewf_debug.h"

#include "libewf_definitions.h"

#include "libewf_device_information.h"

#include "libewf_digest_section.h"

#include "libewf_error2_section.h"

#include "libewf_hash_values.h"

#include "libewf_header_values.h"

#include "libewf_io_handle.h"

#include "libewf_libbfio.h"

#include "libewf_libcdata.h"

#include "libewf_libcerror.h"

#include "libewf_libcnotify.h"

#include "libewf_libfcache.h"

#include "libewf_libfdata.h"

#include "libewf_libfguid.h"

#include "libewf_libfvalue.h"

#include "libewf_libuna.h"

#include "libewf_md5_hash_section.h"

#include "libewf_section.h"

#include "libewf_section_descriptor.h"

#include "libewf_segment_file.h"

#include "libewf_segment_table.h"

#include "libewf_session_section.h"

#include "libewf_sha1_hash_section.h"

#include "libewf_single_files.h"

#include "libewf_table_section.h"

#include "libewf_unused.h"

#include "libewf_volume_section.h"

#include "ewf_file_header.h"

#include "ewf_section.h"

#include "ewf_volume.h"

const uint8_t ewf1_dvf_file_signature[ 8 ] = { 0x64, 0x76, 0x66, 0x09, 0x0d, 0x0a, 0xff, 0x00 };

const uint8_t ewf1_evf_file_signature[ 8 ] = { 0x45, 0x56, 0x46, 0x09, 0x0d, 0x0a, 0xff, 0x00 };

const uint8_t ewf1_lvf_file_signature[ 8 ] = { 0x4c, 0x56, 0x46, 0x09, 0x0d, 0x0a, 0xff, 0x00 };

const uint8_t ewf2_evf_file_signature[ 8 ] = { 0x45, 0x56, 0x46, 0x32, 0x0d, 0x0a, 0x81, 0x00 };

const uint8_t ewf2_lef_file_signature[ 8 ] = { 0x4c, 0x45, 0x46, 0x32, 0x0d, 0x0a, 0x81, 0x00 };

/* Creates a segment file

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

 * Returns 1 if successful or -1 on error

 */

int libewf_segment_file_initialize(

     libewf_segment_file_t **segment_file,

     libewf_io_handle_t *io_handle,

     libcerror_error_t **error )

{

  static char *function = "libewf_segment_file_initialize";

  if( segment_file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid segment file.",

     function );

    return( -1 );

  }

  if( *segment_file != NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,

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

     function );

    return( -1 );

  }

  if( io_handle == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid IO handle.",

     function );

    return( -1 );

  }

  *segment_file = memory_allocate_structure(

                   libewf_segment_file_t );

  if( *segment_file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,

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

     function );

    goto on_error;

  }

  if( memory_set(

       *segment_file,

       0,

       sizeof( libewf_segment_file_t ) ) == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_SET_FAILED,

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

     function );

    memory_free(

     *segment_file );

    *segment_file = NULL;

    return( -1 );

  }

  if( libfdata_list_initialize(

       &( ( *segment_file )->sections_list ),

       (intptr_t *) *segment_file,

       NULL,

       NULL,

       (int (*)(intptr_t *, intptr_t *, libfdata_list_element_t *, libfdata_cache_t *, int, off64_t, size64_t, uint32_t, uint8_t, libcerror_error_t **)) &libewf_segment_file_read_section_element_data,

       NULL,

       LIBFDATA_DATA_HANDLE_FLAG_NON_MANAGED,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,

     "%s: unable to create sections list.",

     function );

    goto on_error;

  }

  if( libfdata_list_initialize(

       &( ( *segment_file )->chunk_groups_list ),

       (intptr_t *) *segment_file,

       NULL,

       NULL,

       (int (*)(intptr_t *, intptr_t *, libfdata_list_element_t *, libfdata_cache_t *, int, off64_t, size64_t, uint32_t, uint8_t, libcerror_error_t **)) &libewf_segment_file_read_chunk_group_element_data,

       NULL,

       LIBFDATA_DATA_HANDLE_FLAG_NON_MANAGED,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,

     "%s: unable to create chunk groups list.",

     function );

    goto on_error;

  }

  if( libfcache_cache_initialize(

       &( ( *segment_file )->chunk_groups_cache ),

       LIBEWF_MAXIMUM_CACHE_ENTRIES_CHUNK_GROUPS,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,

     "%s: unable to create chunk groups cache.",

     function );

    goto on_error;

  }

  ( *segment_file )->io_handle                        = io_handle;

  ( *segment_file )->device_information_section_index = -1;

  ( *segment_file )->previous_last_chunk_filled       = -1;

  ( *segment_file )->last_chunk_filled                = -1;

  ( *segment_file )->last_chunk_compared              = -1;

  return( 1 );

on_error:

  if( *segment_file != NULL )

  {

    if( ( *segment_file )->chunk_groups_list != NULL )

    {

      libfdata_list_free(

       &( ( *segment_file )->chunk_groups_list ),

       NULL );

    }

    if( ( *segment_file )->sections_list != NULL )

    {

      libfdata_list_free(

       &( ( *segment_file )->sections_list ),

       NULL );

    }

    memory_free(

     *segment_file );

    *segment_file = NULL;

  }

  return( -1 );

}

/* Frees a segment file

 * Returns 1 if successful or -1 on error

 */

int libewf_segment_file_free(

     libewf_segment_file_t **segment_file,

     libcerror_error_t **error )

{

  static char *function = "libewf_segment_file_free";

  int result            = 1;

  if( segment_file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid segment file.",

     function );

    return( -1 );

  }

  if( *segment_file != NULL )

  {

    /* The io_handle reference is freed elsewhere

     */

    if( libfdata_list_free(

         &( ( *segment_file )->sections_list ),

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

       "%s: unable to free sections list.",

       function );

      result = -1;

    }

    if( libfdata_list_free(

         &( ( *segment_file )->chunk_groups_list ),

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

       "%s: unable to free chunk groups list.",

       function );

      result = -1;

    }

    if( libfcache_cache_free(

         &( ( *segment_file )->chunk_groups_cache ),

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

       "%s: unable to free chunk groups cache.",

       function );

      result = -1;

    }

    memory_free(

     *segment_file );

    *segment_file = NULL;

  }

  return( result );

}

/* Clones the segment file

 * Returns 1 if successful or -1 on error

 */

int libewf_segment_file_clone(

     libewf_segment_file_t **destination_segment_file,

     libewf_segment_file_t *source_segment_file,

     libcerror_error_t **error )

{

  static char *function       = "libewf_segment_file_clone";

  size64_t list_element_size  = 0;

  size64_t mapped_size        = 0;

  off64_t list_element_offset = 0;

  uint32_t list_element_flags = 0;

  int element_index           = 0;

  int list_element_file_index = 0;

  int list_element_index      = 0;

  int number_of_list_elements = 0;

  if( destination_segment_file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid destination segment file.",

     function );

    return( -1 );

  }

  if( *destination_segment_file != NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,

     "%s: invalid destination segment file value already set.",

     function );

    return( -1 );

  }

  if( source_segment_file == NULL )

  {

    *destination_segment_file = NULL;

    return( 1 );

  }

  *destination_segment_file = memory_allocate_structure(

                               libewf_segment_file_t );

  if( *destination_segment_file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,

     "%s: unable to create destination segment file.",

     function );

    goto on_error;

  }

  if( memory_copy(

       *destination_segment_file,

       source_segment_file,

       sizeof( libewf_segment_file_t ) ) == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_COPY_FAILED,

     "%s: unable to copy source to destination segment file.",

     function );

    memory_free(

     *destination_segment_file );

    *destination_segment_file = NULL;

    return( -1 );

  }

  ( *destination_segment_file )->sections_list             = NULL;

  ( *destination_segment_file )->chunk_groups_list         = NULL;

  ( *destination_segment_file )->chunk_groups_cache        = NULL;

  ( *destination_segment_file )->current_chunk_group_index = 0;

  if( libfdata_list_initialize(

       &( ( *destination_segment_file )->sections_list ),

       (intptr_t *) *destination_segment_file,

       NULL,

       NULL,

       (int (*)(intptr_t *, intptr_t *, libfdata_list_element_t *, libfdata_cache_t *, int, off64_t, size64_t, uint32_t, uint8_t, libcerror_error_t **)) &libewf_segment_file_read_section_element_data,

       NULL,

       LIBFDATA_DATA_HANDLE_FLAG_NON_MANAGED,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,

     "%s: unable to create destination sections list.",

     function );

    goto on_error;

  }

  if( libfdata_list_get_number_of_elements(

       source_segment_file->sections_list,

       &number_of_list_elements,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_GET_FAILED,

     "%s: unable to retrieve the number of elements from source sections list.",

     function );

    goto on_error;

  }

  for( list_element_index = 0;

       list_element_index < number_of_list_elements;

       list_element_index++ )

  {

    if( libfdata_list_get_element_by_index(

         source_segment_file->sections_list,

         list_element_index,

         &list_element_file_index,

         &list_element_offset,

         &list_element_size,

         &list_element_flags,

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_GET_FAILED,

       "%s: unable to retrieve element: %d from source sections list.",

       function,

       list_element_index );

      goto on_error;

    }

    if( libfdata_list_append_element(

         ( *destination_segment_file )->sections_list,

         &element_index,

         list_element_file_index,

         list_element_offset,

         list_element_size,

         list_element_flags,

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_APPEND_FAILED,

       "%s: unable to append element: %d to destination sections list.",

       function,

       list_element_index );

      goto on_error;

    }

  }

  if( libfdata_list_initialize(

       &( ( *destination_segment_file )->chunk_groups_list ),

       (intptr_t *) *destination_segment_file,

       NULL,

       NULL,

       (int (*)(intptr_t *, intptr_t *, libfdata_list_element_t *, libfdata_cache_t *, int, off64_t, size64_t, uint32_t, uint8_t, libcerror_error_t **)) &libewf_segment_file_read_chunk_group_element_data,

       NULL,

       LIBFDATA_DATA_HANDLE_FLAG_NON_MANAGED,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,

     "%s: unable to create destination chunk groups list.",

     function );

    goto on_error;

  }

  if( libfdata_list_get_number_of_elements(

       source_segment_file->chunk_groups_list,

       &number_of_list_elements,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_GET_FAILED,

     "%s: unable to retrieve the number of elements from source chunk groups list.",

     function );

    goto on_error;

  }

  for( list_element_index = 0;

       list_element_index < number_of_list_elements;

       list_element_index++ )

  {

    if( libfdata_list_get_element_by_index(

         source_segment_file->chunk_groups_list,

         list_element_index,

         &list_element_file_index,

         &list_element_offset,

         &list_element_size,

         &list_element_flags,

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_GET_FAILED,

       "%s: unable to retrieve element: %d from source chunk groups list.",

       function,

       list_element_index );

      goto on_error;

    }

    if( libfdata_list_get_mapped_size_by_index(

         source_segment_file->chunk_groups_list,

         list_element_index,

         &mapped_size,

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_GET_FAILED,

       "%s: unable to retrieve mappped size: %d from source chunk groups list.",

       function,

       list_element_index );

      goto on_error;

    }

    if( libfdata_list_append_element_with_mapped_size(

         ( *destination_segment_file )->chunk_groups_list,

         &element_index,

         list_element_file_index,

         list_element_offset,

         list_element_size,

         list_element_flags,

         mapped_size,

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_APPEND_FAILED,

       "%s: unable to append element: %d to destination chunk groups list.",

       function,

       list_element_index );

      goto on_error;

    }

  }

  if( libfcache_cache_clone(

       &( ( *destination_segment_file )->chunk_groups_cache ),

       source_segment_file->chunk_groups_cache,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,

     "%s: unable to create destination chunk groups cache.",

     function );

    goto on_error;

  }

  return( 1 );

on_error:

  if( *destination_segment_file != NULL )

  {

    if( ( *destination_segment_file )->chunk_groups_list != NULL )

    {

      libfdata_list_free(

       &( ( *destination_segment_file )->chunk_groups_list ),

       NULL );

    }

    if( ( *destination_segment_file )->sections_list != NULL )

    {

      libfdata_list_free(

       &( ( *destination_segment_file )->sections_list ),

       NULL );

    }

    memory_free(

     *destination_segment_file );

    *destination_segment_file = NULL;

  }

  return( -1 );

}

/* Retrieves the number of segments

 * Returns 1 if successful or -1 on error

 */

int libewf_segment_file_get_number_of_sections(

     libewf_segment_file_t *segment_file,

     int *number_of_sections,

     libcerror_error_t **error )

{

  static char *function = "libewf_segment_file_get_number_of_sections";

  if( segment_file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid segment file.",

     function );

    return( -1 );

  }

  if( libfdata_list_get_number_of_elements(

       segment_file->sections_list,

       number_of_sections,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_GET_FAILED,

     "%s: unable to retrieve the number of elements from sections list.",

     function );

    return( -1 );

  }

  return( 1 );

}

/* Retrieves a specific section from the segment file

 * Returns 1 if successful or -1 on error

 */

int libewf_segment_file_get_section_by_index(

     libewf_segment_file_t *segment_file,

     int section_index,

     libbfio_pool_t *file_io_pool,

     libfcache_cache_t *sections_cache,

     libewf_section_descriptor_t **section_descriptor,

     libcerror_error_t **error )

{

  static char *function = "libewf_segment_file_get_section_by_index";

  if( segment_file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid segment file.",

     function );

    return( -1 );

  }

  if( libfdata_list_get_element_value_by_index(

       segment_file->sections_list,

       (intptr_t *) file_io_pool,

       (libfdata_cache_t *) sections_cache,

       section_index,

       (intptr_t **) section_descriptor,

       0,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_GET_FAILED,

     "%s: unable to retrieve element: %d from sections list.",

     function,

     section_index );

    return( -1 );

  }

  return( 1 );

}

/* Reads the segment file header

 * Returns 1 if successful or -1 on error

 */

int libewf_segment_file_read_file_header_data(

     libewf_segment_file_t *segment_file,

     const uint8_t *data,

     size_t data_size,

     libcerror_error_t **error )

{

  static char *function = "libewf_segment_file_read_file_header_data";

#if defined( HAVE_DEBUG_OUTPUT )

  uint16_t value_16bit  = 0;

#endif

  if( segment_file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid segment file.",

     function );

    return( -1 );

  }

  if( data == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,

     "%s: missing data.",

     function );

    return( -1 );

  }

  if( ( data_size != sizeof( ewf_file_header_v1_t ) )

   && ( data_size != sizeof( ewf_file_header_v2_t ) ) )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

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

     function );

    return( -1 );

  }

#if defined( HAVE_DEBUG_OUTPUT )

  if( libcnotify_verbose != 0 )

  {

    libcnotify_printf(

     "%s: file header:\n",

     function );

    libcnotify_print_data(

     data,

     data_size,

     0 );

  }

#endif

  if( data_size == sizeof( ewf_file_header_v1_t ) )

  {

    byte_stream_copy_to_uint16_little_endian(

     ( (ewf_file_header_v1_t *) data )->segment_number,

     segment_file->segment_number );

    segment_file->major_version      = 1;

    segment_file->minor_version      = 0;

    segment_file->compression_method = LIBEWF_COMPRESSION_METHOD_DEFLATE;

  }

  else if( data_size == sizeof( ewf_file_header_v2_t ) )

  {

    segment_file->major_version = ( (ewf_file_header_v2_t *) data )->major_version;

    segment_file->minor_version = ( (ewf_file_header_v2_t *) data )->minor_version;

    byte_stream_copy_to_uint16_little_endian(

     ( (ewf_file_header_v2_t *) data )->compression_method,

     segment_file->compression_method );

    byte_stream_copy_to_uint32_little_endian(

     ( (ewf_file_header_v2_t *) data )->segment_number,

     segment_file->segment_number );

    if( memory_copy(

         segment_file->set_identifier,

         ( (ewf_file_header_v2_t *) data )->set_identifier,

         16 ) == NULL )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_MEMORY,

       LIBCERROR_MEMORY_ERROR_COPY_FAILED,

       "%s: unable to copy set identifier.",

       function );

      return( -1 );

    }

  }

#if defined( HAVE_DEBUG_OUTPUT )

  if( libcnotify_verbose != 0 )

  {

    libcnotify_printf(

     "%s: signature:\n",

     function );

    libcnotify_print_data(

     data,

     8,

     0 );

    if( data_size == sizeof( ewf_file_header_v1_t ) )

    {

      libcnotify_printf(

       "%s: fields start\t\t\t: 0x%02" PRIx8 "\n",

       function,

       ( (ewf_file_header_v1_t *) data )->fields_start );

    }

    else if( data_size == sizeof( ewf_file_header_v2_t ) )

    {

      libcnotify_printf(

       "%s: major version\t\t: %" PRIu8 "\n",

       function,

       segment_file->major_version );

      libcnotify_printf(

       "%s: minor version\t\t: %" PRIu8 "\n",

       function,

       segment_file->minor_version );

      libcnotify_printf(

       "%s: compression method\t\t: %" PRIu16 " (",

       function,

       segment_file->compression_method );

      libewf_debug_print_compression_method(

       segment_file->compression_method );

      libcnotify_printf(

       ")\n" );

    }

    libcnotify_printf(

     "%s: segment number\t\t: %" PRIu32 "\n",

     function,

     segment_file->segment_number );

    if( data_size == sizeof( ewf_file_header_v1_t ) )

    {

      byte_stream_copy_to_uint16_little_endian(

       ( (ewf_file_header_v1_t *) data )->fields_end,

       value_16bit );

      libcnotify_printf(

       "%s: fields end\t\t\t: 0x%04" PRIx16 "\n",

       function,

       value_16bit );

    }

    else if( data_size == sizeof( ewf_file_header_v2_t ) )

    {

      if( libewf_debug_print_guid_value(

           function,

           "set identifier\t\t",

           segment_file->set_identifier,

           16,

           LIBFGUID_ENDIAN_LITTLE,

           LIBFGUID_STRING_FORMAT_FLAG_USE_LOWER_CASE,

           error ) != 1 )

      {

        libcerror_error_set(

         error,

         LIBCERROR_ERROR_DOMAIN_RUNTIME,

         LIBCERROR_RUNTIME_ERROR_PRINT_FAILED,

         "%s: unable to print GUID value.",

         function );

        return( -1 );

      }

    }

    libcnotify_printf(

     "\n" );

  }

#endif /* defined( HAVE_DEBUG_OUTPUT ) */

  return( 1 );

}

/* Reads the segment file header

 * Returns the number of bytes read if successful, or -1 on error

 */

ssize_t libewf_segment_file_read_file_header_file_io_pool(

         libewf_segment_file_t *segment_file,

         libbfio_pool_t *file_io_pool,

         int file_io_pool_entry,

         libcerror_error_t **error )

{

  uint8_t file_header_data[ sizeof( ewf_file_header_v2_t ) ];

  static char *function        = "libewf_segment_file_read_file_header_file_io_pool";

  size_t file_header_data_size = 0;

  ssize_t read_count           = 0;

  if( segment_file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid segment file.",

     function );

    return( -1 );

  }

#if defined( HAVE_DEBUG_OUTPUT )

  if( libcnotify_verbose != 0 )

  {

    libcnotify_printf(

     "%s: reading file header at offset: 0 (0x00000000)\n",

     function );

  }

#endif

  read_count = libbfio_pool_read_buffer_at_offset(

                file_io_pool,

                file_io_pool_entry,

                file_header_data,

                8,

                0,

                error );

  if( read_count != (ssize_t) 8 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_READ_FAILED,

     "%s: unable to read file header signature at offset 0 (0x00000000).",

     function );

    return( -1 );

  }

  segment_file->current_offset = read_count;

  if( memory_compare(

       ewf1_evf_file_signature,

       file_header_data,

       8 ) == 0 )

  {

    segment_file->type    = LIBEWF_SEGMENT_FILE_TYPE_EWF1;

    file_header_data_size = sizeof( ewf_file_header_v1_t );

  }

  else if( memory_compare(

            ewf1_lvf_file_signature,

            file_header_data,

            8 ) == 0 )

  {

    segment_file->type    = LIBEWF_SEGMENT_FILE_TYPE_EWF1_LOGICAL;

    file_header_data_size = sizeof( ewf_file_header_v1_t );

  }

  else if( memory_compare(

            ewf2_evf_file_signature,

            file_header_data,

            8 ) == 0 )

  {

    segment_file->type    = LIBEWF_SEGMENT_FILE_TYPE_EWF2;

    file_header_data_size = sizeof( ewf_file_header_v2_t );

  }

  else if( memory_compare(

            ewf2_lef_file_signature,

            file_header_data,

            8 ) == 0 )

  {

    segment_file->type    = LIBEWF_SEGMENT_FILE_TYPE_EWF2_LOGICAL;

    file_header_data_size = sizeof( ewf_file_header_v2_t );

  }

  else

  {