/src/libfsxfs/libfdata/libfdata_stream.c

Source (jump to first uncovered line)
/*
 * The stream functions
 *
 * Copyright (C) 2010-2024, 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 <memory.h>
#include <types.h>

#if defined( HAVE_UNISTD_H )
#include <unistd.h>
#endif

#include "libfdata_definitions.h"
#include "libfdata_libcerror.h"
#include "libfdata_libcnotify.h"
#include "libfdata_mapped_range.h"
#include "libfdata_range.h"
#include "libfdata_segments_array.h"
#include "libfdata_stream.h"
#include "libfdata_types.h"
#include "libfdata_unused.h"

/* Creates a stream
 * Make sure the value stream is referencing, is set to NULL
 *
 * If the flag LIBFDATA_DATA_HANDLE_FLAG_MANAGED is set the stream
 * takes over management of the data handle and the data handle is freed when
 * no longer needed
 *
 * Returns 1 if successful or -1 on error
 */
int libfdata_stream_initialize(
     libfdata_stream_t **stream,
     intptr_t *data_handle,
     int (*free_data_handle)(
            intptr_t **data_handle,
            libcerror_error_t **error ),
     int (*clone_data_handle)(
            intptr_t **destination_data_handle,
            intptr_t *source_data_handle,
            libcerror_error_t **error ),
     int (*create_segment)(
            intptr_t *data_handle,
            intptr_t *file_io_handle,
            int segment_index,
            int *segment_file_index,
            off64_t *segment_offset,
            size64_t *segment_size,
            uint32_t *segment_flags,
            libcerror_error_t **error ),
     ssize_t (*read_segment_data)(
                intptr_t *data_handle,
                intptr_t *file_io_handle,
                int segment_index,
                int segment_file_index,
                uint8_t *segment_data,
                size_t segment_data_size,
                uint32_t segment_flags,
                uint8_t read_flags,
                libcerror_error_t **error ),
     ssize_t (*write_segment_data)(
                intptr_t *data_handle,
                intptr_t *file_io_handle,
                int segment_index,
                int segment_file_index,
                const uint8_t *segment_data,
                size_t segment_data_size,
                uint32_t segment_flags,
                uint8_t write_flags,
                libcerror_error_t **error ),
     off64_t (*seek_segment_offset)(
                intptr_t *data_handle,
                intptr_t *file_io_handle,
                int segment_index,
                int segment_file_index,
                off64_t segment_offset,
                libcerror_error_t **error ),
     uint8_t flags,
     libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  static char *function                       = "libfdata_stream_initialize";

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

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

    return( -1 );
  }
  if( ( flags & 0xfe ) != 0 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
     "%s: unsupported flags: 0x%02" PRIx8 ".",
     function );

    return( -1 );
  }
  internal_stream = memory_allocate_structure(
                     libfdata_internal_stream_t );

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

    goto on_error;
  }
  if( memory_set(
       internal_stream,
       0,
       sizeof( libfdata_internal_stream_t ) ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_SET_FAILED,
     "%s: unable to clear stream.",
     function );

    memory_free(
     internal_stream );

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

    goto on_error;
  }
  if( libcdata_array_initialize(
       &( internal_stream->mapped_ranges_array ),
       0,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
     "%s: unable to create mapped ranges array.",
     function );

    goto on_error;
  }
  internal_stream->segment_offset      = -1;
  internal_stream->flags              |= flags;
  internal_stream->data_handle         = data_handle;
  internal_stream->free_data_handle    = free_data_handle;
  internal_stream->clone_data_handle   = clone_data_handle;
  internal_stream->create_segment      = create_segment;
  internal_stream->read_segment_data   = read_segment_data;
  internal_stream->write_segment_data  = write_segment_data;
  internal_stream->seek_segment_offset = seek_segment_offset;

  *stream = (libfdata_stream_t *) internal_stream;

  return( 1 );

on_error:
  if( internal_stream != NULL )
  {
    if( internal_stream->segments_array != NULL )
    {
      libcdata_array_free(
       &( internal_stream->segments_array ),
       NULL,
       NULL );
    }
    memory_free(
     internal_stream );
  }
  return( -1 );
}

/* Frees a stream
 * Returns 1 if successful or -1 on error
 */
int libfdata_stream_free(
     libfdata_stream_t **stream,
     libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  static char *function                       = "libfdata_stream_free";
  int result                                  = 1;

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

    return( -1 );
  }
  if( *stream != NULL )
  {
    internal_stream = (libfdata_internal_stream_t *) *stream;
    *stream         = NULL;

    if( libcdata_array_free(
         &( internal_stream->segments_array ),
         (int (*)(intptr_t **, libcerror_error_t **)) &libfdata_range_free,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
       "%s: unable to free the segments array.",
       function );

      result = -1;
    }
    if( libcdata_array_free(
         &( internal_stream->mapped_ranges_array ),
         (int (*)(intptr_t **, libcerror_error_t **)) &libfdata_mapped_range_free,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
       "%s: unable to free the mapped ranges array.",
       function );

      result = -1;
    }
    if( ( internal_stream->flags & LIBFDATA_DATA_HANDLE_FLAG_MANAGED ) != 0 )
    {
      if( internal_stream->data_handle != NULL )
      {
        if( internal_stream->free_data_handle == NULL )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
           "%s: invalid source stream - missing free data handle function.",
           function );

          result = -1;
        }
        else if( internal_stream->free_data_handle(
                  &( internal_stream->data_handle ),
                  error ) != 1 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
           "%s: unable to free data handle.",
           function );

          result = -1;
        }
      }
    }
    memory_free(
     internal_stream );
  }
  return( result );
}

/* Clones (duplicates) the stream
 * Returns 1 if successful or -1 on error
 */
int libfdata_stream_clone(
     libfdata_stream_t **destination_stream,
     libfdata_stream_t *source_stream,
     libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_destination_stream = NULL;
  libfdata_internal_stream_t *internal_source_stream      = NULL;
  static char *function                                   = "libfdata_stream_clone";

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

    return( -1 );
  }
  if( *destination_stream != NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
     "%s: destination stream already set.",
     function );

    return( -1 );
  }
  if( source_stream == NULL )
  {
    *destination_stream = NULL;

    return( 1 );
  }
  internal_source_stream = (libfdata_internal_stream_t *) source_stream;

  internal_destination_stream = memory_allocate_structure(
                                 libfdata_internal_stream_t );

  if( internal_destination_stream == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
     "%s: unable to create destination stream.",
     function );

    goto on_error;
  }
  if( memory_set(
       internal_destination_stream,
       0,
       sizeof( libfdata_internal_stream_t ) ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_SET_FAILED,
     "%s: unable to clear destination stream.",
     function );

    memory_free(
     internal_destination_stream );

    return( -1 );
  }
  if( internal_source_stream->data_handle != NULL )
  {
    if( internal_source_stream->free_data_handle == NULL )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
       "%s: invalid source stream - missing free data handle function.",
       function );

      goto on_error;
    }
    if( internal_source_stream->clone_data_handle == NULL )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
       "%s: invalid source stream - missing clone data handle function.",
       function );

      goto on_error;
    }
    if( internal_source_stream->clone_data_handle(
         &( internal_destination_stream->data_handle ),
         internal_source_stream->data_handle,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
       "%s: unable to create destination data handle.",
       function );

      goto on_error;
    }
  }
  if( libcdata_array_clone(
       &( internal_destination_stream->segments_array ),
       internal_source_stream->segments_array,
       (int (*)(intptr_t **, libcerror_error_t **)) &libfdata_range_free,
       (int (*)(intptr_t **, intptr_t *, libcerror_error_t **)) &libfdata_range_clone,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
     "%s: unable to create destination segments array.",
     function );

    goto on_error;
  }
  if( libcdata_array_clone(
       &( internal_destination_stream->mapped_ranges_array ),
       internal_source_stream->mapped_ranges_array,
       (int (*)(intptr_t **, libcerror_error_t **)) &libfdata_mapped_range_free,
       (int (*)(intptr_t **, intptr_t *, libcerror_error_t **)) &libfdata_mapped_range_clone,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
     "%s: unable to create destination mapped ranges array.",
     function );

    goto on_error;
  }
  internal_destination_stream->size                = internal_source_stream->size;
  internal_destination_stream->mapped_size         = internal_source_stream->mapped_size;
  internal_destination_stream->flags               = internal_source_stream->flags | LIBFDATA_DATA_HANDLE_FLAG_MANAGED;
  internal_destination_stream->free_data_handle    = internal_source_stream->free_data_handle;
  internal_destination_stream->clone_data_handle   = internal_source_stream->clone_data_handle;
  internal_destination_stream->create_segment      = internal_source_stream->create_segment;
  internal_destination_stream->read_segment_data   = internal_source_stream->read_segment_data;
  internal_destination_stream->write_segment_data  = internal_source_stream->write_segment_data;
  internal_destination_stream->seek_segment_offset = internal_source_stream->seek_segment_offset;

  *destination_stream = (libfdata_stream_t *) internal_destination_stream;

  return( 1 );

on_error:
  if( internal_destination_stream != NULL )
  {
    if( internal_destination_stream->segments_array != NULL )
    {
      libcdata_array_free(
       &( internal_destination_stream->segments_array ),
       (int (*)(intptr_t **, libcerror_error_t **)) &libfdata_range_free,
       NULL );
    }
    if( ( internal_destination_stream->data_handle != NULL )
     && ( internal_source_stream->free_data_handle != NULL ) )
    {
      internal_source_stream->free_data_handle(
       &( internal_destination_stream->data_handle ),
       NULL );
    }
    memory_free(
     internal_destination_stream );
  }
  return( -1 );
}

/* Segment functions
 */

/* Empties the stream
 * Returns 1 if successful or -1 on error
 */
int libfdata_stream_empty(
     libfdata_stream_t *stream,
     libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  static char *function                       = "libfdata_stream_empty";

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

    return( -1 );
  }
  internal_stream = (libfdata_internal_stream_t *) stream;

  if( libcdata_array_empty(
       internal_stream->segments_array,
       (int (*)(intptr_t **, libcerror_error_t **)) &libfdata_range_free,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
     "%s: unable to empty segments array.",
     function );

    return( -1 );
  }
  if( libcdata_array_empty(
       internal_stream->mapped_ranges_array,
       (int (*)(intptr_t **, libcerror_error_t **)) &libfdata_mapped_range_free,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
     "%s: unable to empty mapped ranges array.",
     function );

    return( -1 );
  }
  internal_stream->size = 0;

  return( 1 );
}

/* Resizes the stream
 * Returns 1 if successful or -1 on error
 */
int libfdata_stream_resize(
     libfdata_stream_t *stream,
     int number_of_segments,
     libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  static char *function                       = "libfdata_stream_resize";

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

    return( -1 );
  }
  internal_stream = (libfdata_internal_stream_t *) stream;

  if( libcdata_array_resize(
       internal_stream->segments_array,
       number_of_segments,
       (int (*)(intptr_t **, libcerror_error_t **)) &libfdata_range_free,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_RESIZE_FAILED,
     "%s: unable to resize segments array.",
     function );

    return( -1 );
  }
  if( libcdata_array_resize(
       internal_stream->mapped_ranges_array,
       number_of_segments,
       (int (*)(intptr_t **, libcerror_error_t **)) &libfdata_mapped_range_free,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_RESIZE_FAILED,
     "%s: unable to resize mapped ranges array.",
     function );

    return( -1 );
  }
  internal_stream->flags |= LIBFDATA_FLAG_CALCULATE_MAPPED_RANGES;

  return( 1 );
}

/* Reverses the order of the segments
 * Returns 1 if successful or -1 on error
 */
int libfdata_stream_reverse(
     libfdata_stream_t *stream,
     libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  static char *function                       = "libfdata_stream_reverse";

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

    return( -1 );
  }
  internal_stream = (libfdata_internal_stream_t *) stream;

  if( libcdata_array_reverse(
       internal_stream->segments_array,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to reverse segments array.",
     function );

    return( -1 );
  }
  internal_stream->flags |= LIBFDATA_FLAG_CALCULATE_MAPPED_RANGES;

  return( 1 );
}

/* Retrieves the number of segments
 * Returns 1 if successful or -1 on error
 */
int libfdata_stream_get_number_of_segments(
     libfdata_stream_t *stream,
     int *number_of_segments,
     libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  static char *function                       = "libfdata_stream_get_number_of_segments";

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

    return( -1 );
  }
  internal_stream = (libfdata_internal_stream_t *) stream;

  if( libcdata_array_get_number_of_entries(
       internal_stream->segments_array,
       number_of_segments,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve number of entries from segments array.",
     function );

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

/* Retrieves a specific segment
 * Returns 1 if successful or -1 on error
 */
int libfdata_stream_get_segment_by_index(
     libfdata_stream_t *stream,
     int segment_index,
     int *segment_file_index,
     off64_t *segment_offset,
     size64_t *segment_size,
     uint32_t *segment_flags,
     libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  static char *function                       = "libfdata_stream_get_segment_by_index";

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

    return( -1 );
  }
  internal_stream = (libfdata_internal_stream_t *) stream;

  if( libfdata_segments_array_get_segment_by_index(
       internal_stream->segments_array,
       segment_index,
       segment_file_index,
       segment_offset,
       segment_size,
       segment_flags,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve segment: %d.",
     function,
     segment_index );

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

/* Sets a specific segment
 * Returns 1 if successful or -1 on error
 */
int libfdata_stream_set_segment_by_index(
     libfdata_stream_t *stream,
     int segment_index,
     int segment_file_index,
     off64_t segment_offset,
     size64_t segment_size,
     uint32_t segment_flags,
     libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  static char *function                       = "libfdata_stream_set_segment_by_index";

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

    return( -1 );
  }
  internal_stream = (libfdata_internal_stream_t *) stream;

  if( libfdata_segments_array_set_segment_by_index(
       internal_stream->segments_array,
       internal_stream->mapped_ranges_array,
       &( internal_stream->size ),
       segment_index,
       segment_file_index,
       segment_offset,
       segment_size,
       segment_flags,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to set segment: %d.",
     function,
     segment_index );

    return( -1 );
  }
  internal_stream->flags |= LIBFDATA_FLAG_CALCULATE_MAPPED_RANGES;

  return( 1 );
}

/* Prepends a segment
 * Returns 1 if successful or -1 on error
 */
int libfdata_stream_prepend_segment(
     libfdata_stream_t *stream,
     int segment_file_index,
     off64_t segment_offset,
     size64_t segment_size,
     uint32_t segment_flags,
     libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  static char *function                       = "libfdata_stream_prepend_segment";

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

    return( -1 );
  }
  internal_stream = (libfdata_internal_stream_t *) stream;

  if( libfdata_segments_array_prepend_segment(
       internal_stream->segments_array,
       internal_stream->mapped_ranges_array,
       &( internal_stream->size ),
       segment_file_index,
       segment_offset,
       segment_size,
       segment_flags,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_APPEND_FAILED,
     "%s: unable to prepend segment.",
     function );

    return( -1 );
  }
  internal_stream->flags |= LIBFDATA_FLAG_CALCULATE_MAPPED_RANGES;

  return( 1 );
}

/* Appends a segment
 * Returns 1 if successful or -1 on error
 */
int libfdata_stream_append_segment(
     libfdata_stream_t *stream,
     int *segment_index,
     int segment_file_index,
     off64_t segment_offset,
     size64_t segment_size,
     uint32_t segment_flags,
     libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  static char *function                       = "libfdata_stream_append_segment";

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

    return( -1 );
  }
  internal_stream = (libfdata_internal_stream_t *) stream;

  if( libfdata_segments_array_append_segment(
       internal_stream->segments_array,
       internal_stream->mapped_ranges_array,
       &( internal_stream->size ),
       segment_index,
       segment_file_index,
       segment_offset,
       segment_size,
       segment_flags,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_APPEND_FAILED,
     "%s: unable to append segment.",
     function );

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

/* Sets the mapped size
 * The mapped size cannot be larger than the stream size
 * A value of 0 is equivalent for the stream size
 * Returns 1 if successful or -1 on error
 */
int libfdata_stream_set_mapped_size(
     libfdata_stream_t *stream,
     size64_t mapped_size,
     libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  static char *function                       = "libfdata_stream_set_mapped_size";

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

    return( -1 );
  }
  internal_stream = (libfdata_internal_stream_t *) stream;

  if( mapped_size > internal_stream->size )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid mapped size value out of bounds.",
     function );

    return( -1 );
  }
  internal_stream->mapped_size = mapped_size;

  return( 1 );
}

/* Mapped range functions
 */

/* Retrieves the mapped range of a specific segment
 * Returns 1 if successful or -1 on error
 */
int libfdata_stream_get_segment_mapped_range(
     libfdata_stream_t *stream,
     int segment_index,
     off64_t *mapped_range_offset,
     size64_t *mapped_range_size,
     libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  libfdata_mapped_range_t *mapped_range       = NULL;
  static char *function                       = "libfdata_stream_get_segment_mapped_range";

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

    return( -1 );
  }
  internal_stream = (libfdata_internal_stream_t *) stream;

  if( libcdata_array_get_entry_by_index(
       internal_stream->mapped_ranges_array,
       segment_index,
       (intptr_t **) &mapped_range,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve entry: %d from mapped ranges array.",
     function,
     segment_index );

    return( -1 );
  }
  if( libfdata_mapped_range_get(
       mapped_range,
       mapped_range_offset,
       mapped_range_size,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to retrieve values from mapped range: %d.",
     function,
     segment_index );

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

/* Retrieves the segment index for a specific offset
 * The segment_data_offset value is set to the offset relative to the start of the segment
 * Returns 1 if successful, 0 if not or -1 on error
 */
int libfdata_stream_get_segment_index_at_offset(
     libfdata_stream_t *stream,
     off64_t offset,
     int *segment_index,
     off64_t *segment_data_offset,
     libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  libfdata_mapped_range_t *mapped_range       = NULL;
  static char *function                       = "libfdata_stream_get_segment_index_at_offset";
  off64_t mapped_range_end_offset             = 0;
  off64_t mapped_range_start_offset           = 0;
  size64_t mapped_range_size                  = 0;
  size64_t stream_size                        = 0;
  int initial_segment_index                   = 0;
  int number_of_segments                      = 0;
  int result                                  = 0;
  int search_segment_index                    = 0;

#if defined( HAVE_DEBUG_OUTPUT )
  libfdata_range_t *segment_data_range        = NULL;
  off64_t segment_offset                      = 0;
  size64_t segment_size                       = 0;
  uint32_t segment_flags                      = 0;
  int segment_file_index                      = -1;
#endif

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

    return( -1 );
  }
  internal_stream = (libfdata_internal_stream_t *) stream;

  if( offset < 0 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_LESS_THAN_ZERO,
     "%s: invalid offset value less than zero.",
     function );

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

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

    return( -1 );
  }
  if( ( internal_stream->flags & LIBFDATA_FLAG_CALCULATE_MAPPED_RANGES ) != 0 )
  {
    if( libfdata_segments_array_calculate_mapped_ranges(
         internal_stream->segments_array,
         internal_stream->mapped_ranges_array,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to calculate mapped ranges.",
       function );

      return( -1 );
    }
    internal_stream->flags &= ~( LIBFDATA_FLAG_CALCULATE_MAPPED_RANGES );
  }
#if defined( HAVE_DEBUG_OUTPUT )
  if( libcnotify_verbose != 0 )
  {
    libcnotify_printf(
     "%s: requested offset: %" PRIi64 " (0x%08" PRIx64 ")\n",
     function,
     offset,
     offset );
  }
#endif
  if( internal_stream->mapped_size != 0 )
  {
    stream_size = internal_stream->mapped_size;
  }
  else
  {
    stream_size = internal_stream->size;
  }
  if( stream_size == 0 )
  {
    return( 0 );
  }
  if( libcdata_array_get_number_of_entries(
       internal_stream->mapped_ranges_array,
       &number_of_segments,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve number of entries from mapped ranges array.",
     function );

    return( -1 );
  }
  /* This assumes a fairly even distribution of the sizes of the segments
   */
  initial_segment_index = (int) ( ( number_of_segments * offset ) / stream_size );

  /* Look for the corresponding segment upwards in the array
   */
  for( search_segment_index = initial_segment_index;
       search_segment_index < number_of_segments;
       search_segment_index++ )
  {
    if( libcdata_array_get_entry_by_index(
         internal_stream->mapped_ranges_array,
         search_segment_index,
         (intptr_t **) &mapped_range,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve entry: %d from mapped ranges array.",
       function,
       search_segment_index );

      return( -1 );
    }
    if( libfdata_mapped_range_get(
         mapped_range,
         &mapped_range_start_offset,
         &mapped_range_size,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_SET_FAILED,
       "%s: unable to retrieve values from mapped range: %d.",
       function,
       search_segment_index );

      return( -1 );
    }
    mapped_range_end_offset = mapped_range_start_offset + (off64_t) mapped_range_size;

    if( mapped_range_end_offset < mapped_range_start_offset )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
       "%s: invalid segment: %d - mapped range value out of bounds.",
       function,
       search_segment_index );

      return( -1 );
    }
#if defined( HAVE_DEBUG_OUTPUT )
    if( libcnotify_verbose != 0 )
    {
      libcnotify_printf(
       "%s: segment: %03d\tmapped range: 0x%08" PRIx64 " - 0x%08" PRIx64 " (size: %" PRIu64 ")\n",
       function,
       search_segment_index,
       mapped_range_start_offset,
       mapped_range_end_offset,
       mapped_range_size );
    }
#endif
    /* Check if the offset is in the mapped range
     */
    if( ( offset >= mapped_range_start_offset )
     && ( offset < mapped_range_end_offset ) )
    {
      offset -= mapped_range_start_offset;

      break;
    }
    /* Check if the offset is out of bounds
     */
    if( offset < mapped_range_start_offset )
    {
      search_segment_index = number_of_segments;

      break;
    }
  }
  if( search_segment_index >= number_of_segments )
  {
    /* Look for the corresponding segment downwards in the array
     */
    for( search_segment_index = initial_segment_index;
         search_segment_index >= 0;
         search_segment_index-- )
    {
      if( libcdata_array_get_entry_by_index(
           internal_stream->mapped_ranges_array,
           search_segment_index,
           (intptr_t **) &mapped_range,
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_GET_FAILED,
         "%s: unable to retrieve entry: %d from mapped ranges array.",
         function,
         search_segment_index );

        return( -1 );
      }
      if( libfdata_mapped_range_get(
           mapped_range,
           &mapped_range_start_offset,
           &mapped_range_size,
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_SET_FAILED,
         "%s: unable to retrieve values from mapped range: %d.",
         function,
         search_segment_index );

        return( -1 );
      }
      mapped_range_end_offset = mapped_range_start_offset + (off64_t) mapped_range_size;

      if( mapped_range_end_offset < mapped_range_start_offset )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
         "%s: invalid segment: %d - mapped range value out of bounds.",
         function,
         search_segment_index );

        return( -1 );
      }
#if defined( HAVE_DEBUG_OUTPUT )
      if( libcnotify_verbose != 0 )
      {
        libcnotify_printf(
         "%s: segment: %03d\tmapped range: 0x%08" PRIx64 " - 0x%08" PRIx64 " (size: %" PRIu64 ")\n",
         function,
         search_segment_index,
         mapped_range_start_offset,
         mapped_range_end_offset,
         mapped_range_size );
      }
#endif
      /* Check if the offset is in the mapped range
       */
      if( ( offset >= mapped_range_start_offset )
       && ( offset < mapped_range_end_offset ) )
      {
        offset -= mapped_range_start_offset;

        break;
      }
      /* Check if the offset is out of bounds
       */
      if( offset > mapped_range_start_offset )
      {
        search_segment_index--;

        break;
      }
    }
  }
  if( ( search_segment_index >= 0 )
   && ( search_segment_index < number_of_segments ) )
  {
    if( offset < 0 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
       "%s: invalid offset value out of bounds.",
       function );

      return( -1 );
    }
    *segment_data_offset = offset;

#if defined( HAVE_DEBUG_OUTPUT )
    if( libcnotify_verbose != 0 )
    {
      if( libcdata_array_get_entry_by_index(
           internal_stream->segments_array,
           search_segment_index,
           (intptr_t **) &segment_data_range,
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_GET_FAILED,
         "%s: unable to retrieve entry: %d from segments array.",
         function,
         search_segment_index );

        return( -1 );
      }
      if( libfdata_range_get(
           segment_data_range,
           &segment_file_index,
           &segment_offset,
           &segment_size,
           &segment_flags,
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_GET_FAILED,
         "%s: unable to retrieve segment: %d data range values.",
         function,
         search_segment_index );

        return( -1 );
      }
      libcnotify_printf(
       "%s: segment: %03d\tfile index: %03d offset: %" PRIi64 " - %" PRIi64 " (0x%08" PRIx64 " - 0x%08" PRIx64 ") (size: %" PRIu64 ")\n",
       function,
       search_segment_index,
       segment_file_index,
       segment_offset,
       segment_offset + segment_size,
       segment_offset,
       segment_offset + segment_size,
       segment_size );
    }
#endif /* defined( HAVE_DEBUG_OUTPUT ) */

    result = 1;
  }
  if( result == 1 )
  {
    *segment_index = search_segment_index;
  }
#if defined( HAVE_DEBUG_OUTPUT )
  if( libcnotify_verbose != 0 )
  {
    libcnotify_printf(
     "\n" );
  }
#endif
  return( result );
}

/* Retrieves the segment for a specific offset
 * The segment_data_offset value is set to the offset relative to the start of the segment
 * Returns 1 if successful, 0 if not or -1 on error
 */
int libfdata_stream_get_segment_at_offset(
     libfdata_stream_t *stream,
     off64_t offset,
     int *segment_index,
     off64_t *segment_data_offset,
     int *segment_file_index,
     off64_t *segment_offset,
     size64_t *segment_size,
     uint32_t *segment_flags,
     libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  libfdata_range_t *segment_data_range        = NULL;
  static char *function                       = "libfdata_stream_get_segment_at_offset";
  int result                                  = 0;

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

    return( -1 );
  }
  internal_stream = (libfdata_internal_stream_t *) stream;

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

    return( -1 );
  }
  result = libfdata_stream_get_segment_index_at_offset(
            stream,
            offset,
            segment_index,
            segment_data_offset,
            error );

  if( result == -1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve segment index at offset: %" PRIi64 " (0x%08" PRIx64 ").",
     function,
     offset,
     offset );

    return( -1 );
  }
  else if( result != 0 )
  {
    if( libcdata_array_get_entry_by_index(
         internal_stream->segments_array,
         *segment_index,
         (intptr_t **) &segment_data_range,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve entry: %d from segments array.",
       function,
       *segment_index );

      return( -1 );
    }
    if( libfdata_range_get(
         segment_data_range,
         segment_file_index,
         segment_offset,
         segment_size,
         segment_flags,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve segment: %d data range values.",
       function,
       *segment_index );

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

/* IO functions
 */

/* Reads data from the current offset into a buffer
 * Returns the number of bytes read or -1 on error
 */
ssize_t libfdata_stream_read_buffer(
         libfdata_stream_t *stream,
         intptr_t *file_io_handle,
         uint8_t *buffer,
         size_t buffer_size,
         uint8_t read_flags,
         libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  static char *function                       = "libfdata_stream_read_buffer";
  off64_t result_offset                       = 0;
  off64_t segment_offset                      = 0;
  size64_t segment_size                       = 0;
  size64_t segment_data_size                  = 0;
  size64_t stream_size                        = 0;
  size_t buffer_offset                        = 0;
  size_t read_size                            = 0;
  ssize_t read_count                          = 0;
  uint32_t segment_flags                      = 0;
  int segment_file_index                      = 0;

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

    return( -1 );
  }
  internal_stream = (libfdata_internal_stream_t *) stream;

  if( internal_stream->read_segment_data == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: invalid stream - missing read segment data function.",
     function );

    return( -1 );
  }
  if( internal_stream->seek_segment_offset == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: invalid stream - missing seek segment offset function.",
     function );

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

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

    return( -1 );
  }
  if( internal_stream->current_offset < 0 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid stream - current offset value out of bounds.",
     function );

    return( -1 );
  }
  if( internal_stream->mapped_size != 0 )
  {
    stream_size = internal_stream->mapped_size;
  }
  else
  {
    stream_size = internal_stream->size;
  }
  /* Bail out early for requests to read empty buffers and beyond the end of the stream
   */
  if( (size64_t) internal_stream->current_offset >= stream_size )
  {
    buffer_size = 0;
  }
  else if( (size64_t) buffer_size > ( stream_size - internal_stream->current_offset ) )
  {
    buffer_size = (size_t) ( stream_size - internal_stream->current_offset );
  }
  if( buffer_size == 0 )
  {
    return( 0 );
  }
  if( internal_stream->current_segment_data_range == NULL )
  {
    if( libcdata_array_get_entry_by_index(
         internal_stream->segments_array,
         internal_stream->current_segment_index,
         (intptr_t **) &( internal_stream->current_segment_data_range ),
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve entry: %d from segments array.",
       function,
       internal_stream->current_segment_index );

      return( -1 );
    }
  }
  if( libfdata_range_get(
       internal_stream->current_segment_data_range,
       &segment_file_index,
       &segment_offset,
       &segment_size,
       &segment_flags,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve segment: %d data range values.",
     function,
     internal_stream->current_segment_index );

    return( -1 );
  }
  if( ( internal_stream->segment_data_offset < 0 )
   || ( segment_offset > ( INT64_MAX - internal_stream->segment_data_offset ) )
   || ( (size64_t) internal_stream->segment_data_offset >= segment_size ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid stream - segment data offset value out of bounds.",
     function );

    return( -1 );
  }
  segment_offset += internal_stream->segment_data_offset;

  segment_data_size = segment_size - internal_stream->segment_data_offset;

  /* Make sure the file IO handle is pointing to the correct offset
   */
  result_offset = internal_stream->seek_segment_offset(
                   internal_stream->data_handle,
                   file_io_handle,
                   internal_stream->current_segment_index,
                   segment_file_index,
                   segment_offset,
                   error );

  if( result_offset != segment_offset )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_IO,
     LIBCERROR_IO_ERROR_SEEK_FAILED,
     "%s: unable to seek segment: %d offset: %" PRIi64 " (0x%08" PRIx64 ").",
     function,
     internal_stream->current_segment_index,
     segment_offset,
     segment_offset );

    return( -1 );
  }
  internal_stream->segment_offset = segment_offset;

  while( buffer_size > 0 )
  {
    if( (size64_t) buffer_size <= segment_data_size )
    {
      read_size = buffer_size;
    }
    else
    {
      read_size = (size_t) segment_data_size;
    }
    if( read_size == 0 )
    {
      break;
    }
    read_count = internal_stream->read_segment_data(
                  internal_stream->data_handle,
                  file_io_handle,
                  internal_stream->current_segment_index,
                  segment_file_index,
                  &( buffer[ buffer_offset ]),
                  read_size,
                  segment_flags,
                  read_flags,
                  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 segment: %d data at offset: %" PRIi64 " (0x%08" PRIx64 ").",
       function,
       internal_stream->current_segment_index,
       segment_offset,
       segment_offset );

      return( -1 );
    }
    internal_stream->current_offset      += read_size;
    internal_stream->segment_offset      += read_size;
    internal_stream->segment_data_offset += read_size;
    segment_offset                       += read_size;
    segment_data_size                    -= read_size;
    buffer_size                          -= read_size;
    buffer_offset                        += read_size;

    if( (size64_t) internal_stream->current_offset >= stream_size )
    {
      break;
    }
    if( (size64_t) internal_stream->segment_data_offset >= segment_size )
    {
      if( (size64_t) internal_stream->segment_data_offset > segment_size )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
         "%s: invalid stream - segment data offset value out of bounds.",
         function );

        return( -1 );
      }
      internal_stream->current_segment_index++;
      internal_stream->current_segment_data_range = NULL;
      internal_stream->segment_data_offset        = 0;

      if( libcdata_array_get_entry_by_index(
           internal_stream->segments_array,
           internal_stream->current_segment_index,
           (intptr_t **) &( internal_stream->current_segment_data_range ),
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_GET_FAILED,
         "%s: unable to retrieve entry: %d from segments array.",
         function,
         internal_stream->current_segment_index );

        return( -1 );
      }
      if( libfdata_range_get(
           internal_stream->current_segment_data_range,
           &segment_file_index,
           &segment_offset,
           &segment_size,
           &segment_flags,
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_GET_FAILED,
         "%s: unable to retrieve segment: %d data range values.",
         function,
         internal_stream->current_segment_index );

        return( -1 );
      }
      segment_data_size = segment_size;

      result_offset = internal_stream->seek_segment_offset(
                       internal_stream->data_handle,
                       file_io_handle,
                       internal_stream->current_segment_index,
                       segment_file_index,
                       segment_offset,
                       error );

      if( result_offset != segment_offset )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_IO,
         LIBCERROR_IO_ERROR_SEEK_FAILED,
         "%s: unable to seek segment: %d offset: %" PRIi64 " (0x%08" PRIx64 ").",
         function,
         internal_stream->current_segment_index,
         segment_offset,
         segment_offset );

        return( -1 );
      }
      internal_stream->segment_offset = segment_offset;
    }
  }
  return( (ssize_t) buffer_offset );
}

/* Reads data at a specific offset into a buffer
 * Returns the number of bytes read or -1 on error
 */
ssize_t libfdata_stream_read_buffer_at_offset(
         libfdata_stream_t *stream,
         intptr_t *file_io_handle,
         uint8_t *buffer,
         size_t buffer_size,
         off64_t offset,
         uint8_t read_flags,
         libcerror_error_t **error )
{
  static char *function = "libfdata_stream_read_buffer_at_offset";
  ssize_t read_count    = 0;

  if( libfdata_stream_seek_offset(
       stream,
       offset,
       SEEK_SET,
       error ) == -1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_IO,
     LIBCERROR_IO_ERROR_SEEK_FAILED,
     "%s: unable to seek offset.",
     function );

    return( -1 );
  }
  read_count = libfdata_stream_read_buffer(
                stream,
                file_io_handle,
                buffer,
                buffer_size,
                read_flags,
                error );

  if( read_count < 0 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_IO,
     LIBCERROR_IO_ERROR_READ_FAILED,
     "%s: unable to read buffer.",
     function );

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

/* Writes data in the buffer to the current offset
 * Returns the number of bytes written or -1 on error
 */
ssize_t libfdata_stream_write_buffer(
         libfdata_stream_t *stream,
         intptr_t *file_io_handle,
         const uint8_t *buffer,
         size_t buffer_size,
         uint8_t write_flags,
         libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  static char *function                       = "libfdata_stream_write_buffer";
  off64_t result_offset                       = 0;
  off64_t segment_offset                      = 0;
  size64_t segment_size                       = 0;
  size64_t segment_data_size                  = 0;
  size_t buffer_offset                        = 0;
  size_t write_size                           = 0;
  ssize_t write_count                         = 0;
  uint32_t segment_flags                      = 0;
  int number_of_segments                      = 0;
  int result                                  = 0;
  int segment_file_index                      = 0;
  int segment_index                           = 0;

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

    return( -1 );
  }
  internal_stream = (libfdata_internal_stream_t *) stream;

  if( internal_stream->create_segment == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: invalid stream - missing create segment function.",
     function );

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

    return( -1 );
  }
  if( internal_stream->seek_segment_offset == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: invalid stream - missing seek segment offset function.",
     function );

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

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

    return( -1 );
  }
  if( internal_stream->current_offset < 0 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid stream - current offset value out of bounds.",
     function );

    return( -1 );
  }
  /* Bail out early for requests to write empty buffers
   */
  if( buffer_size == 0 )
  {
    return( 0 );
  }
  if( libcdata_array_get_number_of_entries(
       internal_stream->segments_array,
       &number_of_segments,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve number of entries from segments array.",
     function );

    return( -1 );
  }
  if( (size64_t) internal_stream->current_offset < internal_stream->size )
  {
    if( internal_stream->current_segment_data_range == NULL )
    {
      if( libcdata_array_get_entry_by_index(
           internal_stream->segments_array,
           internal_stream->current_segment_index,
           (intptr_t **) &( internal_stream->current_segment_data_range ),
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_GET_FAILED,
         "%s: unable to retrieve entry: %d from segments array.",
         function,
         internal_stream->current_segment_index );

        return( -1 );
      }
    }
    if( libfdata_range_get(
         internal_stream->current_segment_data_range,
         &segment_file_index,
         &segment_offset,
         &segment_size,
         &segment_flags,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve segment: %d data range values.",
       function,
       internal_stream->current_segment_index );

      return( -1 );
    }
    if( ( internal_stream->segment_data_offset < 0 )
     || ( (size64_t) internal_stream->segment_data_offset >= segment_size ) )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
       "%s: invalid stream - segment data offset value out of bounds.",
       function );

      return( -1 );
    }
    segment_offset += internal_stream->segment_data_offset;

    segment_data_size = segment_size - internal_stream->segment_data_offset;
  }
  else while( (size64_t) internal_stream->current_offset >= internal_stream->size )
  {
    if( internal_stream->current_segment_index < number_of_segments )
    {
      internal_stream->current_segment_index++;
      internal_stream->current_segment_data_range = NULL;
    }
    internal_stream->segment_data_offset = 0;

    result = internal_stream->create_segment(
        internal_stream->data_handle,
        file_io_handle,
        internal_stream->current_segment_index,
        &segment_file_index,
        &segment_offset,
        &segment_size,
        &segment_flags,
        error );

    if( result == -1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
       "%s: unable to create segment: %d.",
       function,
       internal_stream->current_segment_index );

      return( -1 );
    }
    else if( result == 0 )
    {
      return( 0 );
    }
    if( libfdata_stream_append_segment(
         stream,
         &segment_index,
         segment_file_index,
         segment_offset,
         segment_size,
         segment_flags,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_APPEND_FAILED,
       "%s: unable to append segment to stream.",
       function );

      return( -1 );
    }
    if( internal_stream->current_segment_index != segment_index )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
       "%s: invalid segment index value out of bounds.",
       function );

      return( -1 );
    }
    number_of_segments++;

    segment_data_size = segment_size;
  }
  /* Make sure the file IO handle is pointing to the correct offset
   */
  result_offset = internal_stream->seek_segment_offset(
       internal_stream->data_handle,
       file_io_handle,
       internal_stream->current_segment_index,
       segment_file_index,
       segment_offset,
       error );

  if( result_offset != segment_offset )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_IO,
     LIBCERROR_IO_ERROR_SEEK_FAILED,
     "%s: unable to seek segment: %d offset: %" PRIi64 " (0x%08" PRIx64 ").",
     function,
     internal_stream->current_segment_index,
     segment_offset,
     segment_offset );

    return( -1 );
  }
  internal_stream->segment_offset = segment_offset;

  while( buffer_size > 0 )
  {
    if( (size64_t) buffer_size <= segment_data_size )
    {
      write_size = buffer_size;
    }
    else
    {
      write_size = (size_t) segment_data_size;
    }
    if( write_size == 0 )
    {
      break;
    }
    write_count = internal_stream->write_segment_data(
                   internal_stream->data_handle,
                   file_io_handle,
                   internal_stream->current_segment_index,
                   segment_file_index,
                   &( buffer[ buffer_offset ] ),
                   write_size,
                   segment_flags,
                   write_flags,
                   error );

    if( write_count != (ssize_t) write_size )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_IO,
       LIBCERROR_IO_ERROR_WRITE_FAILED,
       "%s: unable to write segment: %d data at offset: %" PRIi64 " (0x%08" PRIx64 ").",
       function,
       internal_stream->current_segment_index,
       segment_offset + internal_stream->segment_data_offset,
       segment_offset + internal_stream->segment_data_offset );

      return( -1 );
    }
    internal_stream->current_offset      += write_size;
    internal_stream->segment_offset      += write_size;
    internal_stream->segment_data_offset += write_size;
    segment_offset                       += write_size;
    segment_data_size                    -= write_size;
    buffer_size                          -= write_size;
    buffer_offset                        += write_size;

    if( (size64_t) internal_stream->segment_data_offset >= segment_size )
    {
      if( (size64_t) internal_stream->segment_data_offset > segment_size )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
         "%s: invalid stream - segment data offset value out of bounds.",
         function );

        return( -1 );
      }
      internal_stream->current_segment_index++;
      internal_stream->current_segment_data_range = NULL;
      internal_stream->segment_data_offset        = 0;

      if( internal_stream->current_segment_index < number_of_segments )
      {
        if( libcdata_array_get_entry_by_index(
             internal_stream->segments_array,
             internal_stream->current_segment_index,
             (intptr_t **) &( internal_stream->current_segment_data_range ),
             error ) != 1 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_GET_FAILED,
           "%s: unable to retrieve entry: %d from segments array.",
           function,
           internal_stream->current_segment_index );

          return( -1 );
        }
        if( libfdata_range_get(
             internal_stream->current_segment_data_range,
             &segment_file_index,
             &segment_offset,
             &segment_size,
             &segment_flags,
             error ) != 1 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_GET_FAILED,
           "%s: unable to retrieve segment: %d data range values.",
           function,
           internal_stream->current_segment_index );

          return( -1 );
        }
      }
      else
      {
        result = internal_stream->create_segment(
            internal_stream->data_handle,
            file_io_handle,
            internal_stream->current_segment_index,
            &segment_file_index,
            &segment_offset,
            &segment_size,
            &segment_flags,
            error );

        if( result == -1 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
           "%s: unable to create segment: %d.",
           function,
           internal_stream->current_segment_index );

          return( -1 );
        }
        else if( result == 0 )
        {
          break;
        }
        if( libfdata_stream_append_segment(
             stream,
             &segment_index,
             segment_file_index,
             segment_offset,
             segment_size,
             segment_flags,
             error ) != 1 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_APPEND_FAILED,
           "%s: unable to append segment to stream.",
           function );

          return( -1 );
        }
        if( internal_stream->current_segment_index != segment_index )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
           "%s: invalid segment index value out of bounds.",
           function );

          return( -1 );
        }
        number_of_segments++;
      }
      segment_data_size = segment_size;

      result_offset = internal_stream->seek_segment_offset(
           internal_stream->data_handle,
           file_io_handle,
           internal_stream->current_segment_index,
           segment_file_index,
           segment_offset,
           error );

      if( result_offset != segment_offset )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_IO,
         LIBCERROR_IO_ERROR_SEEK_FAILED,
         "%s: unable to seek segment: %d offset: %" PRIi64 " (0x%08" PRIx64 ").",
         function,
         internal_stream->current_segment_index,
         segment_offset,
         segment_offset );

        return( -1 );
      }
      internal_stream->segment_offset = segment_offset;
    }
  }
  return( (ssize_t) buffer_offset );
}

/* Seeks a certain offset of the data
 * Returns the offset if seek is successful or -1 on error
 */
off64_t libfdata_stream_seek_offset(
         libfdata_stream_t *stream,
         off64_t offset,
         int whence,
         libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  static char *function                       = "libfdata_stream_seek_offset";
  off64_t segment_data_offset                 = 0;
  size64_t stream_size                        = 0;
  int segment_index                           = 0;

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

    return( -1 );
  }
  internal_stream = (libfdata_internal_stream_t *) stream;

  if( internal_stream->current_offset < 0 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid stream - current offset value out of bounds.",
     function );

    return( -1 );
  }
  if( ( whence != SEEK_CUR )
   && ( whence != SEEK_END )
   && ( whence != SEEK_SET ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
     "%s: unsupported whence.",
     function );

    return( -1 );
  }
  if( internal_stream->mapped_size != 0 )
  {
    stream_size = internal_stream->mapped_size;
  }
  else
  {
    stream_size = internal_stream->size;
  }
  if( whence == SEEK_CUR )
  {
    offset += internal_stream->current_offset;
  }
  else if( whence == SEEK_END )
  {
    offset += (off64_t) stream_size;
  }
#if defined( HAVE_VERBOSE_OUTPUT )
  if( libcnotify_verbose != 0 )
  {
    libcnotify_printf(
     "%s: seeking offset: %" PRIi64 " (0x%08" PRIx64 ").\n",
     function,
     offset,
     offset );
  }
#endif
  if( internal_stream->current_offset != offset )
  {
    if( offset < 0 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
       "%s: offset value out of bounds.",
       function );

      return( -1 );
    }
    if( offset < (off64_t) stream_size )
    {
      if( libfdata_stream_get_segment_index_at_offset(
           stream,
           offset,
           &segment_index,
           &segment_data_offset,
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_GET_FAILED,
         "%s: unable to retrieve segment index at offset: %" PRIi64 " (0x%08" PRIx64 ").",
         function,
         offset,
         offset );

        return( -1 );
      }
    }
    else
    {
      if( libcdata_array_get_number_of_entries(
           internal_stream->segments_array,
           &segment_index,
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_GET_FAILED,
         "%s: unable to retrieve number of entries from segments array.",
         function );

        return( -1 );
      }
      segment_data_offset = 0;
    }
    internal_stream->current_segment_index      = segment_index;
    internal_stream->current_segment_data_range = NULL;
    internal_stream->current_offset             = offset;
    internal_stream->segment_data_offset        = segment_data_offset;
  }
  return( offset );
}

/* Retrieves the offset
 * Returns 1 if successful or -1 on error
 */
int libfdata_stream_get_offset(
     libfdata_stream_t *stream,
     off64_t *offset,
     libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  static char *function                       = "libfdata_stream_get_data_offset";

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

    return( -1 );
  }
  internal_stream = (libfdata_internal_stream_t *) stream;

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

    return( -1 );
  }
  *offset = internal_stream->current_offset;

  return( 1 );
}

/* Retrieves the size
 * Returns 1 if successful or -1 on error
 */
int libfdata_stream_get_size(
     libfdata_stream_t *stream,
     size64_t *size,
     libcerror_error_t **error )
{
  libfdata_internal_stream_t *internal_stream = NULL;
  static char *function                       = "libfdata_stream_get_size";

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

    return( -1 );
  }
  internal_stream = (libfdata_internal_stream_t *) stream;

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

    return( -1 );
  }
  if( ( internal_stream->flags & LIBFDATA_FLAG_CALCULATE_MAPPED_RANGES ) != 0 )
  {
    if( libfdata_segments_array_calculate_mapped_ranges(
         internal_stream->segments_array,
         internal_stream->mapped_ranges_array,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to calculate mapped ranges.",
       function );

      return( -1 );
    }
    internal_stream->flags &= ~( LIBFDATA_FLAG_CALCULATE_MAPPED_RANGES );
  }
  if( internal_stream->mapped_size != 0 )
  {
    *size = internal_stream->mapped_size;
  }
  else
  {
    *size = internal_stream->size;
  }
  return( 1 );
}


Coverage Report

Created: 2024-02-25 07:19