/*

 * The compressed data handle functions

 *

 * Copyright (C) 2010-2026, 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 <byte_stream.h>

#include <memory.h>

#include <types.h>

#include "libfsntfs_compressed_data_handle.h"

#include "libfsntfs_compression.h"

#include "libfsntfs_definitions.h"

#include "libfsntfs_libbfio.h"

#include "libfsntfs_libcerror.h"

#include "libfsntfs_libcnotify.h"

#include "libfsntfs_libfdata.h"

#include "libfsntfs_unused.h"

/* Creates compressed data handle

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

 * Returns 1 if successful or -1 on error

 */

int libfsntfs_compressed_data_handle_initialize(

     libfsntfs_compressed_data_handle_t **data_handle,

     libfdata_stream_t *compressed_data_stream,

     uint32_t compression_method,

     size64_t uncompressed_data_size,

     libcerror_error_t **error )

{

  static char *function        = "libfsntfs_compressed_data_handle_initialize";

  size_t compression_unit_size = 0;

  if( data_handle == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid data handle.",

     function );

    return( -1 );

  }

  if( *data_handle != NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,

     "%s: invalid data handle value already set.",

     function );

    return( -1 );

  }

  if( compressed_data_stream == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid compressed data stream.",

     function );

    return( -1 );

  }

  switch( compression_method )

  {

    case 0:

      compression_method    = LIBFSNTFS_COMPRESSION_METHOD_LZXPRESS_HUFFMAN;

      compression_unit_size = 4096;

      break;

    case 1:

      compression_method    = LIBFSNTFS_COMPRESSION_METHOD_LZX;

      compression_unit_size = 32768;

      break;

    case 2:

      compression_method    = LIBFSNTFS_COMPRESSION_METHOD_LZXPRESS_HUFFMAN;

      compression_unit_size = 8192;

      break;

    case 3:

      compression_method    = LIBFSNTFS_COMPRESSION_METHOD_LZXPRESS_HUFFMAN;

      compression_unit_size = 16384;

      break;

    default:

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

       LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,

       "%s: unsupported compression method: %" PRIu32 ".",

       function,

       compression_method );

      return( -1 );

  }

  *data_handle = memory_allocate_structure(

                  libfsntfs_compressed_data_handle_t );

  if( *data_handle == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,

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

     function );

    goto on_error;

  }

  if( memory_set(

       *data_handle,

       0,

       sizeof( libfsntfs_compressed_data_handle_t ) ) == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_SET_FAILED,

     "%s: unable to clear data handle.",

     function );

    memory_free(

     *data_handle );

    *data_handle = NULL;

    return( -1 );

  }

  ( *data_handle )->compressed_segment_data = (uint8_t *) memory_allocate(

                                                           sizeof( uint8_t ) * compression_unit_size );

  if( ( *data_handle )->compressed_segment_data == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,

     "%s: unable to create compressed segment data.",

     function );

    goto on_error;

  }

  ( *data_handle )->segment_data = (uint8_t *) memory_allocate(

                                                sizeof( uint8_t ) * compression_unit_size );

  if( ( *data_handle )->segment_data == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,

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

     function );

    goto on_error;

  }

  ( *data_handle )->compressed_data_stream         = compressed_data_stream;

  ( *data_handle )->current_compressed_block_index = (uint32_t) -1;

  ( *data_handle )->uncompressed_data_size         = uncompressed_data_size;

  ( *data_handle )->compression_method             = (int) compression_method;

  ( *data_handle )->compression_unit_size          = compression_unit_size;

  return( 1 );

on_error:

  if( *data_handle != NULL )

  {

    if( ( *data_handle )->segment_data != NULL )

    {

      memory_free(

       ( *data_handle )->segment_data );

    }

    if( ( *data_handle )->compressed_segment_data != NULL )

    {

      memory_free(

       ( *data_handle )->compressed_segment_data );

    }

    memory_free(

     *data_handle );

    *data_handle = NULL;

  }

  return( -1 );

}

/* Frees data handle

 * Returns 1 if successful or -1 on error

 */

int libfsntfs_compressed_data_handle_free(

     libfsntfs_compressed_data_handle_t **data_handle,

     libcerror_error_t **error )

{

  static char *function = "libfsntfs_compressed_data_handle_free";

  if( data_handle == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid data handle.",

     function );

    return( -1 );

  }

  if( *data_handle != NULL )

  {

    if( ( *data_handle )->segment_data != NULL )

    {

      memory_free(

       ( *data_handle )->segment_data );

    }

    if( ( *data_handle )->compressed_segment_data != NULL )

    {

      memory_free(

       ( *data_handle )->compressed_segment_data );

    }

    if( ( *data_handle )->compressed_block_offsets != NULL )

    {

      memory_free(

       ( *data_handle )->compressed_block_offsets );

    }

    if( ( *data_handle )->compressed_data_stream != NULL )

    {

      libfdata_stream_free(

       &( ( *data_handle )->compressed_data_stream ),

       NULL );

    }

    memory_free(

     *data_handle );

    *data_handle = NULL;

  }

  return( 1 );

}

/* Determines the compressed block offsets

 * Returns 1 if successful or -1 on error

 */

int libfsntfs_compressed_data_handle_get_compressed_block_offsets(

     libfsntfs_compressed_data_handle_t *data_handle,

     libbfio_handle_t *file_io_handle,

     libcerror_error_t **error )

{

  uint8_t *chunk_offsets_data               = NULL;

  static char *function                     = "libfsntfs_compressed_data_handle_get_compressed_block_offsets";

  size64_t compressed_data_size             = 0;

  size_t chunk_offset_data_size             = 0;

  size_t chunk_offsets_data_size            = 0;

  size_t data_offset                        = 0;

  ssize_t read_count                        = 0;

  uint64_t compressed_block_index           = 0;

  uint64_t compressed_block_offset          = 0;

  uint64_t previous_compressed_block_offset = 0;

  if( data_handle == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid data handle.",

     function );

    return( -1 );

  }

  if( data_handle->compressed_block_offsets != NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,

     "%s: invalid data handle - compressed block offsets value already set.",

     function );

    return( -1 );

  }

  if( libfdata_stream_get_size(

       data_handle->compressed_data_stream,

       &compressed_data_size,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_GET_FAILED,

     "%s: unable to retrieve compressed data size.",

     function );

    goto on_error;

  }

  if( compressed_data_size > (size64_t) UINT32_MAX )

  {

    chunk_offset_data_size = 8;

  }

  else

  {

    chunk_offset_data_size = 4;

  }

  chunk_offsets_data_size = data_handle->uncompressed_data_size / data_handle->compression_unit_size;

  if( ( data_handle->uncompressed_data_size % data_handle->compression_unit_size ) != 0 )

  {

    chunk_offsets_data_size++;

  }

  if( chunk_offsets_data_size > ( (size_t) MEMORY_MAXIMUM_ALLOCATION_SIZE / chunk_offset_data_size ) )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

     "%s: invalid number of chunk offsets data size value exceeds maximum allocation size.",

     function );

    goto on_error;

  }

  chunk_offsets_data_size *= chunk_offset_data_size;

  chunk_offsets_data = (uint8_t *) memory_allocate(

                                    sizeof( uint8_t ) * chunk_offsets_data_size );

  if( chunk_offsets_data == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,

     "%s: unable to create chunk offsets data.",

     function );

    goto on_error;

  }

  read_count = libfdata_stream_read_buffer_at_offset(

                data_handle->compressed_data_stream,

                (intptr_t *) file_io_handle,

                chunk_offsets_data,

                chunk_offsets_data_size,

                0,

                0,

                error );

  if( read_count != (ssize_t) chunk_offsets_data_size )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_READ_FAILED,

     "%s: unable to read chunk offsets data from compressed data stream.",

     function );

    goto on_error;

  }

#if defined( HAVE_DEBUG_OUTPUT )

    if( libcnotify_verbose != 0 )

    {

      libcnotify_printf(

       "%s: chunk offsets data:\n",

       function );

      libcnotify_print_data(

       chunk_offsets_data,

       chunk_offsets_data_size,

       LIBCNOTIFY_PRINT_DATA_FLAG_GROUP_DATA );

    }

#endif

  previous_compressed_block_offset = chunk_offset_data_size;

  compressed_block_index++;

  for( data_offset = 0;

       data_offset < chunk_offsets_data_size;

       data_offset += chunk_offset_data_size )

  {

    if( chunk_offset_data_size == 8 )

    {

      byte_stream_copy_to_uint64_little_endian(

       &( chunk_offsets_data[ data_offset ] ),

       compressed_block_offset );

    }

    else

    {

      byte_stream_copy_to_uint32_little_endian(

       &( chunk_offsets_data[ data_offset ] ),

       compressed_block_offset );

    }

    if( ( compressed_block_offset <= previous_compressed_block_offset )

     || ( compressed_block_offset >= compressed_data_size ) )

    {

      break;

    }

    previous_compressed_block_offset = compressed_block_offset;

    compressed_block_index++;

  }

  data_handle->number_of_compressed_blocks = compressed_block_index;

#if defined( HAVE_DEBUG_OUTPUT )

  if( libcnotify_verbose != 0 )

  {

    libcnotify_printf(

     "%s: number of compressed blocks\t: %" PRIu64 "\n",

     function,

     data_handle->number_of_compressed_blocks );

  }

#endif

  if( (size_t) data_handle->number_of_compressed_blocks > ( (size_t) ( MEMORY_MAXIMUM_ALLOCATION_SIZE / sizeof( uint64_t ) ) - 1 ) )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

     "%s: invalid number of compressed blocks value exceeds maximum allocation size.",

     function );

    goto on_error;

  }

  data_handle->compressed_block_offsets = (uint64_t *) memory_allocate(

                                                        sizeof( uint64_t ) * ( data_handle->number_of_compressed_blocks + 1 ) );

  if( data_handle->compressed_block_offsets == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,

     "%s: unable to create compressed block offsets.",

     function );

    goto on_error;

  }

#if defined( HAVE_DEBUG_OUTPUT )

  if( libcnotify_verbose != 0 )

  {

    libcnotify_printf(

     "%s: compressed block: % 2d offset\t: %" PRIzd " (0x%08" PRIzx ")\n",

     function,

     0,

     data_offset,

     data_offset );

  }

#endif

  data_handle->compressed_block_offsets[ 0 ] = data_offset;

  data_offset = 0;

  for( compressed_block_index = 1;

       compressed_block_index < data_handle->number_of_compressed_blocks;

       compressed_block_index++ )

  {

    if( chunk_offset_data_size == 8 )

    {

      byte_stream_copy_to_uint64_little_endian(

       &( chunk_offsets_data[ data_offset ] ),

       compressed_block_offset );

    }

    else

    {

      byte_stream_copy_to_uint32_little_endian(

       &( chunk_offsets_data[ data_offset ] ),

       compressed_block_offset );

    }

#if defined( HAVE_DEBUG_OUTPUT )

    if( libcnotify_verbose != 0 )

    {

      libcnotify_printf(

       "%s: compressed block: % 2" PRIu64 " offset\t: %" PRIu64 " (0x%08" PRIx64 ")\n",

       function,

       compressed_block_index,

       compressed_block_offset,

       compressed_block_offset );

    }

#endif

    if( ( compressed_block_offset == 0 )

     || ( compressed_block_offset >= ( (uint64_t) INT64_MAX - data_handle->compressed_block_offsets[ 0 ] ) ) )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

       "%s: invalid compressed block offset: %d value out of bounds.",

       function,

       compressed_block_index );

      goto on_error;

    }

    data_offset += chunk_offset_data_size;

    data_handle->compressed_block_offsets[ compressed_block_index ] = data_handle->compressed_block_offsets[ 0 ] + compressed_block_offset;

  }

#if defined( HAVE_DEBUG_OUTPUT )

  if( libcnotify_verbose != 0 )

  {

    libcnotify_printf(

     "%s: compressed block: % 2" PRIu64 " offset\t: %" PRIu64 " (0x%08" PRIx64 ")\n",

     function,

     compressed_block_index,

     compressed_data_size,

     compressed_data_size );

  }

#endif

  data_handle->compressed_block_offsets[ compressed_block_index ] = (uint64_t) compressed_data_size;

#if defined( HAVE_DEBUG_OUTPUT )

  if( libcnotify_verbose != 0 )

  {

    libcnotify_printf(

     "\n" );

  }

#endif

  memory_free(

   chunk_offsets_data );

  return( 1 );

on_error:

  if( data_handle->compressed_block_offsets != NULL )

  {

    memory_free(

     data_handle->compressed_block_offsets );

    data_handle->compressed_block_offsets = NULL;

  }

  if( chunk_offsets_data != NULL )

  {

    memory_free(

     chunk_offsets_data );

  }

  return( -1 );

}

/* Reads data from the current offset into a compressed

 * Callback for the data stream

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

 */

ssize_t libfsntfs_compressed_data_handle_read_segment_data(

         libfsntfs_compressed_data_handle_t *data_handle,

         intptr_t *file_io_handle,

         int segment_index,

         int segment_file_index LIBFSNTFS_ATTRIBUTE_UNUSED,

         uint8_t *segment_data,

         size_t segment_data_size,

         uint32_t segment_flags LIBFSNTFS_ATTRIBUTE_UNUSED,

         uint8_t read_flags LIBFSNTFS_ATTRIBUTE_UNUSED,

         libcerror_error_t **error )

{

  uint8_t *read_buffer              = NULL;

  static char *function             = "libfsntfs_compressed_data_handle_read_segment_data";

  size_t data_offset                = 0;

  size_t read_size                  = 0;

  size_t segment_data_offset        = 0;

  ssize_t read_count                = 0;

  off64_t data_stream_offset        = 0;

  off64_t uncompressed_block_offset = 0;

  uint64_t compressed_block_index   = 0;

  LIBFSNTFS_UNREFERENCED_PARAMETER( file_io_handle )

  LIBFSNTFS_UNREFERENCED_PARAMETER( segment_file_index )

  LIBFSNTFS_UNREFERENCED_PARAMETER( segment_flags )

  LIBFSNTFS_UNREFERENCED_PARAMETER( read_flags )

  if( data_handle == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid data handle.",

     function );

    return( -1 );

  }

  if( segment_index != 0 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,

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

     function );

    return( -1 );

  }

  if( segment_data == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid segment data.",

     function );

    return( -1 );

  }

  if( segment_data_size > (size_t) SSIZE_MAX )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,

     "%s: invalid segment data size value exceeds maximum.",

     function );

    return( -1 );

  }

  if( data_handle->compressed_block_offsets == NULL )

  {

    if( libfsntfs_compressed_data_handle_get_compressed_block_offsets(

         data_handle,

         (libbfio_handle_t *) file_io_handle,

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_GET_FAILED,

       "%s: unable to determine compressed block offsets.",

       function );

      return( -1 );

    }

  }

  if( (size64_t) data_handle->current_offset >= data_handle->uncompressed_data_size )

  {

    return( 0 );

  }

  compressed_block_index = (uint64_t) ( data_handle->current_offset / data_handle->compression_unit_size );

  data_offset            = (size_t) ( data_handle->current_offset % data_handle->compression_unit_size );

  while( segment_data_size > 0 )

  {

    if( compressed_block_index >= data_handle->number_of_compressed_blocks )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

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

       function );

      return( -1 );

    }

    if( data_handle->current_compressed_block_index != compressed_block_index )

    {

      data_stream_offset = data_handle->compressed_block_offsets[ compressed_block_index ];

      read_size          = (size_t) ( data_handle->compressed_block_offsets[ compressed_block_index + 1 ] - data_stream_offset );

      data_handle->segment_data_size = data_handle->compression_unit_size;

      if( data_handle->segment_data_size > ( data_handle->uncompressed_data_size - data_handle->current_offset ) )

      {

        data_handle->segment_data_size = data_handle->uncompressed_data_size - data_handle->current_offset;

      }

      if( read_size > data_handle->segment_data_size )

      {

        libcerror_error_set(

         error,

         LIBCERROR_ERROR_DOMAIN_RUNTIME,

         LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

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

         function );

        return( -1 );

      }

      if( read_size < data_handle->segment_data_size )

      {

        read_buffer = data_handle->compressed_segment_data;

      }

      else

      {

        read_buffer = data_handle->segment_data;

      }

#if defined( HAVE_DEBUG_OUTPUT )

      if( libcnotify_verbose != 0 )

      {

        libcnotify_printf(

         "%s: compressed block: % 2" PRIu64 " offset\t: %" PRIu64 " (0x%08" PRIx64 ")\n",

         function,

         compressed_block_index,

         data_stream_offset,

         data_stream_offset );

        libcnotify_printf(

         "\n" );

      }

#endif

      read_count = libfdata_stream_read_buffer_at_offset(

                    data_handle->compressed_data_stream,

                    (intptr_t *) file_io_handle,

                    read_buffer,

                    read_size,

                    data_stream_offset,

                    0,

                    error );

      if( read_count != (ssize_t) read_size )

      {

        libcerror_error_set(

         error,

         LIBCERROR_ERROR_DOMAIN_IO,

         LIBCERROR_IO_ERROR_READ_FAILED,

         "%s: unable to read buffer at offset: %" PRIi64 " (0x%08" PRIx64 ") from data stream.",

         function,

         data_stream_offset,

         data_stream_offset );

        return( -1 );

      }

      if( read_buffer == data_handle->compressed_segment_data )

      {

#if defined( HAVE_DEBUG_OUTPUT )

        if( libcnotify_verbose != 0 )

        {

          libcnotify_printf(

           "%s: compressed block data:\n",

           function );

          libcnotify_print_data(

           data_handle->compressed_segment_data,

           read_size,

           LIBCNOTIFY_PRINT_DATA_FLAG_GROUP_DATA );

        }

#endif

        if( libfsntfs_decompress_data(

             data_handle->compressed_segment_data,

             (size_t) read_count,

             data_handle->compression_method,

             data_handle->segment_data,

             &( data_handle->segment_data_size ),

             error ) != 1 )

        {

          libcerror_error_set(

           error,

           LIBCERROR_ERROR_DOMAIN_ENCRYPTION,

           LIBCERROR_ENCRYPTION_ERROR_GENERIC,

           "%s: unable to decompress data.",

           function );

          return( -1 );

        }

        uncompressed_block_offset = ( compressed_block_index + 1 ) * data_handle->compression_unit_size;

        if( ( (size64_t) uncompressed_block_offset < data_handle->uncompressed_data_size )

         && ( data_handle->segment_data_size != data_handle->compression_unit_size ) )

        {

          libcerror_error_set(

           error,

           LIBCERROR_ERROR_DOMAIN_RUNTIME,

           LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

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

           function );

          return( -1 );

        }

      }

#if defined( HAVE_DEBUG_OUTPUT )

      if( libcnotify_verbose != 0 )

      {

        libcnotify_printf(

         "%s: uncompressed block data:\n",

         function );

        libcnotify_print_data(

         data_handle->segment_data,

         data_handle->segment_data_size,

         LIBCNOTIFY_PRINT_DATA_FLAG_GROUP_DATA );

      }

#endif

      data_handle->current_compressed_block_index = compressed_block_index;

    }

    if( data_offset >= data_handle->segment_data_size )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

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

       function );

      return( -1 );

    }

    read_size = data_handle->segment_data_size - data_offset;

    if( read_size > segment_data_size )

    {

      read_size = segment_data_size;

    }

    if( memory_copy(

         &( segment_data[ segment_data_offset ] ),

         &( data_handle->segment_data[ data_offset ] ),

         read_size ) == NULL )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_MEMORY,

       LIBCERROR_MEMORY_ERROR_COPY_FAILED,

       "%s: unable to copy data.",

       function );

      return( -1 );

    }

    data_offset          = 0;

    segment_data_size   -= read_size;

    segment_data_offset += read_size;

    compressed_block_index++;

    data_handle->current_offset += read_size;

    if( (size64_t) data_handle->current_offset >= data_handle->uncompressed_data_size )

    {

      break;

    }

  }

  return( (ssize_t) segment_data_offset );

}

/* Seeks a certain offset of the data

 * Callback for the data stream

 * Returns the offset if seek is successful or -1 on error

 */

off64_t libfsntfs_compressed_data_handle_seek_segment_offset(

         libfsntfs_compressed_data_handle_t *data_handle,

         intptr_t *file_io_handle LIBFSNTFS_ATTRIBUTE_UNUSED,

         int segment_index,

         int segment_file_index LIBFSNTFS_ATTRIBUTE_UNUSED,

         off64_t segment_offset,

         libcerror_error_t **error )

{

  static char *function = "libfsntfs_compressed_data_handle_seek_segment_offset";

  LIBFSNTFS_UNREFERENCED_PARAMETER( file_io_handle )

  LIBFSNTFS_UNREFERENCED_PARAMETER( segment_file_index )

  if( data_handle == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid data handle.",

     function );

    return( -1 );

  }

  if( segment_index != 0 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,

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

     function );

    return( -1 );

  }

  if( segment_offset < 0 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,

     "%s: invalid segment offset value out of bounds.",

     function );

    return( -1 );

  }

  data_handle->current_offset = segment_offset;

  return( segment_offset );

}