/src/libvslvm/libfdata/libfdata_vector.c

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/*
 * The vector 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>

#include "libfdata_definitions.h"
#include "libfdata_libcdata.h"
#include "libfdata_libcerror.h"
#include "libfdata_libcnotify.h"
#include "libfdata_libfcache.h"
#include "libfdata_mapped_range.h"
#include "libfdata_range.h"
#include "libfdata_segments_array.h"
#include "libfdata_types.h"
#include "libfdata_unused.h"
#include "libfdata_vector.h"

/* Creates a vector
 * Make sure the value vector is referencing, is set to NULL
 *
 * If the flag LIBFDATA_DATA_HANDLE_FLAG_MANAGED is set the vector
 * 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_vector_initialize(
     libfdata_vector_t **vector,
     size64_t element_data_size,
     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 (*read_element_data)(
            intptr_t *data_handle,
            intptr_t *file_io_handle,
            libfdata_vector_t *vector,
            libfdata_cache_t *cache,
            int element_index,
            int element_data_file_index,
            off64_t element_data_offset,
            size64_t element_data_size,
            uint32_t element_data_flags,
            uint8_t read_flags,
            libcerror_error_t **error ),
     int (*write_element_data)(
            intptr_t *data_handle,
            intptr_t *file_io_handle,
            libfdata_vector_t *vector,
            libfdata_cache_t *cache,
            int element_index,
            int element_data_file_index,
            off64_t element_data_offset,
            size64_t element_data_size,
            uint32_t element_data_flags,
            uint8_t write_flags,
            libcerror_error_t **error ),
     uint8_t flags,
     libcerror_error_t **error )
{
  libfdata_internal_vector_t *internal_vector = NULL;
  static char *function                       = "libfdata_vector_initialize";

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

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

    return( -1 );
  }
  if( element_data_size == 0 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_ZERO_OR_LESS,
     "%s: invalid element data size value zero or less.",
     function );

    return( -1 );
  }
  internal_vector = memory_allocate_structure(
                     libfdata_internal_vector_t );

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

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

    memory_free(
     internal_vector );

    return( -1 );
  }
  if( libcdata_array_initialize(
       &( internal_vector->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_vector->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;
  }
  if( libfcache_date_time_get_timestamp(
       &( internal_vector->timestamp ),
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve cache timestamp.",
     function );

    goto on_error;
  }
  internal_vector->element_data_size  = element_data_size;
  internal_vector->flags             |= flags;
  internal_vector->data_handle        = data_handle;
  internal_vector->free_data_handle   = free_data_handle;
  internal_vector->clone_data_handle  = clone_data_handle;
  internal_vector->read_element_data  = read_element_data;
  internal_vector->write_element_data = write_element_data;

  *vector = (libfdata_vector_t *) internal_vector;

  return( 1 );

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

/* Frees a vector
 * Returns 1 if successful or -1 on error
 */
int libfdata_vector_free(
     libfdata_vector_t **vector,
     libcerror_error_t **error )
{
  libfdata_internal_vector_t *internal_vector = NULL;
  static char *function                       = "libfdata_vector_free";
  int result                                  = 1;

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

    return( -1 );
  }
  if( *vector != NULL )
  {
    internal_vector = (libfdata_internal_vector_t *) *vector;
    *vector         = NULL;

    if( libcdata_array_free(
         &( internal_vector->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_vector->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_vector->flags & LIBFDATA_DATA_HANDLE_FLAG_MANAGED ) != 0 )
    {
      if( internal_vector->data_handle != NULL )
      {
        if( internal_vector->free_data_handle == NULL )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
           "%s: invalid vector - missing free data handle function.",
           function );

          result = -1;
        }
        else if( internal_vector->free_data_handle(
                  &( internal_vector->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_vector );
  }
  return( result );
}

/* Clones (duplicates) the vector
 * Returns 1 if successful or -1 on error
 */
int libfdata_vector_clone(
     libfdata_vector_t **destination_vector,
     libfdata_vector_t *source_vector,
     libcerror_error_t **error )
{
  libfdata_internal_vector_t *internal_destination_vector = NULL;
  libfdata_internal_vector_t *internal_source_vector      = NULL;
  static char *function                                   = "libfdata_vector_clone";

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

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

    return( -1 );
  }
  if( source_vector == NULL )
  {
    *destination_vector = source_vector;

    return( 1 );
  }
  internal_source_vector = (libfdata_internal_vector_t *) source_vector;

  internal_destination_vector = memory_allocate_structure(
                                 libfdata_internal_vector_t );

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

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

    memory_free(
     internal_destination_vector );

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

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

      goto on_error;
    }
    if( internal_source_vector->clone_data_handle(
         &( internal_destination_vector->data_handle ),
         internal_source_vector->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_vector->segments_array ),
       internal_source_vector->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_vector->mapped_ranges_array ),
       internal_source_vector->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_vector->element_data_size  = internal_source_vector->element_data_size;
  internal_destination_vector->timestamp          = internal_source_vector->timestamp;
  internal_destination_vector->flags              = internal_source_vector->flags | LIBFDATA_DATA_HANDLE_FLAG_MANAGED;
  internal_destination_vector->data_handle        = internal_source_vector->data_handle;
  internal_destination_vector->free_data_handle   = internal_source_vector->free_data_handle;
  internal_destination_vector->clone_data_handle  = internal_source_vector->clone_data_handle;
  internal_destination_vector->read_element_data  = internal_source_vector->read_element_data;
  internal_destination_vector->write_element_data = internal_source_vector->write_element_data;

  *destination_vector = (libfdata_vector_t *) internal_destination_vector;

  return( 1 );

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

/* Segment functions
 */

/* Empties the vector
 * Returns 1 if successful or -1 on error
 */
int libfdata_vector_empty(
     libfdata_vector_t *vector,
     libcerror_error_t **error )
{
  libfdata_internal_vector_t *internal_vector = NULL;
  static char *function                       = "libfdata_vector_empty";

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

    return( -1 );
  }
  internal_vector = (libfdata_internal_vector_t *) vector;

  if( libcdata_array_empty(
       internal_vector->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_vector->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_vector->size = 0;

  return( 1 );
}

/* Resizes the segments
 * Returns 1 if successful or -1 on error
 */
int libfdata_vector_resize(
     libfdata_vector_t *vector,
     int number_of_segments,
     libcerror_error_t **error )
{
  libfdata_internal_vector_t *internal_vector = NULL;
  static char *function                       = "libfdata_vector_resize";

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

    return( -1 );
  }
  internal_vector = (libfdata_internal_vector_t *) vector;

  if( libcdata_array_resize(
       internal_vector->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_vector->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_vector->flags |= LIBFDATA_FLAG_CALCULATE_MAPPED_RANGES;

  return( 1 );
}

/* Retrieves the number of segments of the vector
 * Returns 1 if successful or -1 on error
 */
int libfdata_vector_get_number_of_segments(
     libfdata_vector_t *vector,
     int *number_of_segments,
     libcerror_error_t **error )
{
  libfdata_internal_vector_t *internal_vector = NULL;
  static char *function                       = "libfdata_vector_get_number_of_segments";

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

    return( -1 );
  }
  internal_vector = (libfdata_internal_vector_t *) vector;

  if( libcdata_array_get_number_of_entries(
       internal_vector->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 the offset and size of a specific segment
 * Returns 1 if successful or -1 on error
 */
int libfdata_vector_get_segment_by_index(
     libfdata_vector_t *vector,
     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_vector_t *internal_vector = NULL;
  static char *function                       = "libfdata_vector_get_segment_by_index";

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

    return( -1 );
  }
  internal_vector = (libfdata_internal_vector_t *) vector;

  if( libfdata_segments_array_get_segment_by_index(
       internal_vector->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 the offset and size of a specific segment
 * Returns 1 if successful or -1 on error
 */
int libfdata_vector_set_segment_by_index(
     libfdata_vector_t *vector,
     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_vector_t *internal_vector = NULL;
  static char *function                       = "libfdata_vector_set_segment_by_index";

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

    return( -1 );
  }
  internal_vector = (libfdata_internal_vector_t *) vector;

  if( libfdata_segments_array_set_segment_by_index(
       internal_vector->segments_array,
       internal_vector->mapped_ranges_array,
       &( internal_vector->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_vector->flags |= LIBFDATA_FLAG_CALCULATE_MAPPED_RANGES;

  return( 1 );
}

/* Prepends a segment
 * Returns 1 if successful or -1 on error
 */
int libfdata_vector_prepend_segment(
     libfdata_vector_t *vector,
     int segment_file_index,
     off64_t segment_offset,
     size64_t segment_size,
     uint32_t segment_flags,
     libcerror_error_t **error )
{
  libfdata_internal_vector_t *internal_vector = NULL;
  static char *function                       = "libfdata_vector_prepend_segment";

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

    return( -1 );
  }
  internal_vector = (libfdata_internal_vector_t *) vector;

  if( libfdata_segments_array_prepend_segment(
       internal_vector->segments_array,
       internal_vector->mapped_ranges_array,
       &( internal_vector->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_vector->flags |= LIBFDATA_FLAG_CALCULATE_MAPPED_RANGES;

  return( 1 );
}

/* Appends a segment
 * Returns 1 if successful or -1 on error
 */
int libfdata_vector_append_segment(
     libfdata_vector_t *vector,
     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_vector_t *internal_vector = NULL;
  static char *function                       = "libfdata_vector_append_segment";

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

    return( -1 );
  }
  internal_vector = (libfdata_internal_vector_t *) vector;

  if( libfdata_segments_array_append_segment(
       internal_vector->segments_array,
       internal_vector->mapped_ranges_array,
       &( internal_vector->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 );
}

/* Vector element functions
 */

/* Retrieves the element data size of the vector
 * Returns 1 if successful or -1 on error
 */
int libfdata_vector_get_element_data_size(
     libfdata_vector_t *vector,
     size64_t *element_data_size,
     libcerror_error_t **error )
{
  libfdata_internal_vector_t *internal_vector = NULL;
  static char *function                       = "libfdata_vector_get_element_data_size";

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

    return( -1 );
  }
  internal_vector = (libfdata_internal_vector_t *) vector;

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

    return( -1 );
  }
  *element_data_size = internal_vector->element_data_size;

  return( 1 );
}

/* Retrieves the number of elements of the vector
 * Returns 1 if successful or -1 on error
 */
int libfdata_vector_get_number_of_elements(
     libfdata_vector_t *vector,
     int *number_of_elements,
     libcerror_error_t **error )
{
  libfdata_internal_vector_t *internal_vector = NULL;
  static char *function                       = "libfdata_vector_get_number_of_elements";
  size64_t safe_number_of_elements            = 0;

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

    return( -1 );
  }
  internal_vector = (libfdata_internal_vector_t *) vector;

  if( internal_vector->element_data_size == 0 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid vector - element data size value out of bounds.",
     function );

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

    return( -1 );
  }
  safe_number_of_elements = internal_vector->size / internal_vector->element_data_size;

  if( ( internal_vector->size % internal_vector->element_data_size ) != 0 )
  {
    safe_number_of_elements++;
  }
  if( safe_number_of_elements > (size64_t) INT_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: number of elements value out of bounds.",
     function );

    return( -1 );
  }
  *number_of_elements = (int) safe_number_of_elements;

  return( 1 );
}

/* Mapped range functions
 */

/* Retrieves the element index for a specific offset
 * Returns 1 if successful or -1 on error
 */
int libfdata_vector_get_element_index_at_offset(
     libfdata_vector_t *vector,
     off64_t element_value_offset,
     int *element_index,
     off64_t *element_data_offset,
     libcerror_error_t **error )
{
  libfdata_internal_vector_t *internal_vector = NULL;
  libfdata_mapped_range_t *mapped_range       = NULL;
  static char *function                       = "libfdata_vector_get_element_index_at_offset";
  off64_t mapped_range_end_offset             = 0;
  off64_t mapped_range_start_offset           = 0;
  off64_t segment_data_offset                 = 0;
  size64_t mapped_range_size                  = 0;
  uint64_t calculated_element_index           = 0;
  int initial_segment_index                   = 0;
  int number_of_segments                      = 0;
  int segment_index                           = 0;
  int result                                  = 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( vector == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid vector.",
     function );

    return( -1 );
  }
  internal_vector = (libfdata_internal_vector_t *) vector;

  if( internal_vector->element_data_size == 0 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid vector - element data size value out of bounds.",
     function );

    return( -1 );
  }
  if( internal_vector->size == 0 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid vector - size value out of bounds.",
     function );

    return( -1 );
  }
  if( element_value_offset < 0 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_LESS_THAN_ZERO,
     "%s: invalid element value offset value less than zero.",
     function );

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

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

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

      return( -1 );
    }
    internal_vector->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,
     element_value_offset,
     element_value_offset );
  }
#endif
  if( internal_vector->size == 0 )
  {
    return( 0 );
  }
  if( libcdata_array_get_number_of_entries(
       internal_vector->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 * element_value_offset ) / internal_vector->size );

  /* Look for the corresponding segment upwards in the array
   */
  for( segment_index = initial_segment_index;
       segment_index < number_of_segments;
       segment_index++ )
  {
    if( libcdata_array_get_entry_by_index(
         internal_vector->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_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,
       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,
       segment_index );

      return( -1 );
    }
#if defined( HAVE_DEBUG_OUTPUT )
    if( libcnotify_verbose != 0 )
    {
      libcnotify_printf(
       "%s: segment: %03d\tmapped range: %" PRIi64 " - %" PRIi64 " (0x%08" PRIx64 " - 0x%08" PRIx64 ") (size: %" PRIu64 ")\n",
       function,
       segment_index,
       mapped_range_start_offset,
       mapped_range_end_offset,
       mapped_range_start_offset,
       mapped_range_end_offset,
       mapped_range_size );
    }
#endif
    /* Check if the element value offset is in the mapped range
     */
    if( ( element_value_offset >= mapped_range_start_offset )
     && ( element_value_offset < mapped_range_end_offset ) )
    {
      break;
    }
    /* Check if the element value offset is out of bounds
     */
    if( element_value_offset < mapped_range_start_offset )
    {
      segment_index = number_of_segments;

      break;
    }
  }
  if( segment_index >= number_of_segments )
  {
    /* Look for the corresponding segment downwards in the array
     */
    for( segment_index = initial_segment_index;
         segment_index >= 0;
         segment_index-- )
    {
      if( libcdata_array_get_entry_by_index(
           internal_vector->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_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,
         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,
         segment_index );

        return( -1 );
      }
#if defined( HAVE_DEBUG_OUTPUT )
      if( libcnotify_verbose != 0 )
      {
        libcnotify_printf(
         "%s: segment: %03d\tmapped range: %" PRIi64 " - %" PRIi64 " (0x%08" PRIx64 " - 0x%08" PRIx64 ") (size: %" PRIu64 ")\n",
         function,
         segment_index,
         mapped_range_start_offset,
         mapped_range_end_offset,
         mapped_range_start_offset,
         mapped_range_end_offset,
         mapped_range_size );
      }
#endif
      /* Check if the element value offset is in the mapped range
       */
      if( ( element_value_offset >= mapped_range_start_offset )
       && ( element_value_offset < mapped_range_end_offset ) )
      {
        break;
      }
      /* Check if the element value offset is out of bounds
       */
      if( element_value_offset > mapped_range_start_offset )
      {
        segment_index = -1;

        break;
      }
      segment_data_offset += (off64_t) mapped_range_size;
    }
  }
  if( ( segment_index >= 0 )
   && ( segment_index < number_of_segments ) )
  {
#if defined( HAVE_DEBUG_OUTPUT )
    if( libcnotify_verbose != 0 )
    {
      if( libcdata_array_get_entry_by_index(
           internal_vector->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 );
      }
      libcnotify_printf(
       "%s: segment: %03d\tfile index: %03d offset: %" PRIi64 " - %" PRIi64 " (0x%08" PRIx64 " - 0x%08" PRIx64 ") (size: %" PRIu64 ")\n",
       function,
       segment_index,
       segment_file_index,
       segment_offset,
       segment_offset + segment_size,
       segment_offset,
       segment_offset + segment_size,
       segment_size );
    }
#endif /* defined( HAVE_DEBUG_OUTPUT ) */

    calculated_element_index = (uint64_t) element_value_offset / internal_vector->element_data_size;

    if( calculated_element_index > (uint64_t) INT_MAX )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM,
       "%s: invalid element index value exceeds maximum.",
       function );

      return( -1 );
    }
    /* The element data offset is relative from the start of the vector element not the underlying segment
     */
    *element_index       = (int) calculated_element_index;
    *element_data_offset = element_value_offset % internal_vector->element_data_size;

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

/* Vector element value functions
 */

/* Retrieves the value of a specific element
 * Returns 1 if successful or -1 on error
 */
int libfdata_vector_get_element_value_by_index(
     libfdata_vector_t *vector,
     intptr_t *file_io_handle,
     libfdata_cache_t *cache,
     int element_index,
     intptr_t **element_value,
     uint8_t read_flags,
     libcerror_error_t **error )
{
  libfcache_cache_value_t *cache_value        = NULL;
  libfdata_internal_vector_t *internal_vector = NULL;
  libfdata_range_t *segment_data_range        = NULL;
  static char *function                       = "libfdata_vector_get_element_value_by_index";
  off64_t cache_value_offset                  = (off64_t) -1;
  off64_t element_data_offset                 = 0;
  int64_t cache_value_timestamp               = 0;
  uint32_t element_data_flags                 = 0;
  int cache_value_file_index                  = -1;
  int element_data_file_index                 = -1;
  int result                                  = 0;

#if defined( HAVE_DEBUG_OUTPUT )
  const char *hit_or_miss                     = NULL;
#endif

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

    return( -1 );
  }
  internal_vector = (libfdata_internal_vector_t *) vector;

  if( internal_vector->read_element_data == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: invalid vector - missing read element data function.",
     function );

    return( -1 );
  }
  if( internal_vector->element_data_size == 0 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid vector - element data size value out of bounds.",
     function );

    return( -1 );
  }
  if( ( internal_vector->size == 0 )
   || ( internal_vector->size > (off64_t) INT64_MAX ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid vector - size value out of bounds.",
     function );

    return( -1 );
  }
  if( ( element_index < 0 )
   || ( (uint64_t) element_index > ( (uint64_t) INT64_MAX / internal_vector->element_data_size ) ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid element index value out of bounds.",
     function );

    return( -1 );
  }
  element_data_offset = (off64_t) ( element_index * internal_vector->element_data_size );

  if( (size64_t) element_data_offset > internal_vector->size )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid element index value out of bounds.",
     function );

    return( -1 );
  }
  if( libfdata_segments_array_get_data_range_at_offset(
       internal_vector->segments_array,
       element_data_offset,
       &element_data_offset,
       &segment_data_range,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve segment data range for offset: %" PRIi64 " (0x%08" PRIx64 ").",
     function,
     element_data_offset,
     element_data_offset );

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

    return( -1 );
  }
  if( segment_data_range->offset > ( (off64_t) INT64_MAX - element_data_offset ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid element data offset value out of bounds.",
     function );

    return( -1 );
  }
  element_data_file_index = segment_data_range->file_index;
  element_data_offset    += segment_data_range->offset;
  element_data_flags      = segment_data_range->flags;

  if( ( read_flags & LIBFDATA_READ_FLAG_IGNORE_CACHE ) == 0 )
  {
    result = libfcache_cache_get_value_by_identifier(
              (libfcache_cache_t *) cache,
              element_data_file_index,
              element_data_offset,
              internal_vector->timestamp,
              &cache_value,
              error );

    if( result == -1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve value from cache.",
       function );

      return( -1 );
    }
#if defined( HAVE_DEBUG_OUTPUT )
    if( libcnotify_verbose != 0 )
    {
      if( result == 0 )
      {
        hit_or_miss = "miss";
      }
      else
      {
        hit_or_miss = "hit";
      }
      libcnotify_printf(
       "%s: cache: 0x%08" PRIjx " %s\n",
       function,
       (intptr_t) cache,
       hit_or_miss );
    }
#endif /* defined( HAVE_DEBUG_OUTPUT ) */
  }
  if( result == 0 )
  {
#if defined( HAVE_DEBUG_OUTPUT )
    if( libcnotify_verbose != 0 )
    {
      libcnotify_printf(
       "%s: reading element data at offset: %" PRIi64 " (0x%08" PRIx64 ") of size: %" PRIu64 "\n",
       function,
       element_data_offset,
       element_data_offset,
       internal_vector->element_data_size );
    }
#endif
    if( internal_vector->read_element_data(
         internal_vector->data_handle,
         file_io_handle,
         vector,
         cache,
         element_index,
         element_data_file_index,
         element_data_offset,
         internal_vector->element_data_size,
         element_data_flags,
         read_flags,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_IO,
       LIBCERROR_IO_ERROR_READ_FAILED,
       "%s: unable to read element data at offset: %" PRIi64 " (0x%08" PRIx64 ").",
       function,
       element_data_offset,
       element_data_offset );

      return( -1 );
    }
    if( libfcache_cache_get_value_by_identifier(
         (libfcache_cache_t *) cache,
         element_data_file_index,
         element_data_offset,
         internal_vector->timestamp,
         &cache_value,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve value from cache.",
       function );

      return( -1 );
    }
    if( libfcache_cache_value_get_identifier(
         cache_value,
         &cache_value_file_index,
         &cache_value_offset,
         &cache_value_timestamp,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve cache value identifier.",
       function );

      return( -1 );
    }
    if( ( element_data_file_index != cache_value_file_index )
     || ( element_data_offset != cache_value_offset )
     || ( internal_vector->timestamp != cache_value_timestamp ) )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
       "%s: invalid cache value - identifier value out of bounds.",
       function );

      return( -1 );
    }
  }
  if( libfcache_cache_value_get_value(
       cache_value,
       element_value,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve element value.",
     function );

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

/* Retrieves the value an element at a specific offset
 * Returns 1 if successful or -1 on error
 */
int libfdata_vector_get_element_value_at_offset(
     libfdata_vector_t *vector,
     intptr_t *file_io_handle,
     libfdata_cache_t *cache,
     off64_t element_value_offset,
     off64_t *element_data_offset,
     intptr_t **element_value,
     uint8_t read_flags,
     libcerror_error_t **error )
{
  static char *function = "libfdata_vector_get_element_value_at_offset";
  int element_index     = 0;

  if( libfdata_vector_get_element_index_at_offset(
       vector,
       element_value_offset,
       &element_index,
       element_data_offset,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve element index at offset: %" PRIi64 " (0x%08" PRIx64 ").",
     function,
     element_value_offset,
     element_value_offset );

    return( -1 );
  }
  if( libfdata_vector_get_element_value_by_index(
       vector,
       file_io_handle,
       cache,
       element_index,
       element_value,
       read_flags,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve element: %d value.",
     function,
     element_index );

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

/* Sets the value of a specific element
 *
 * If the flag LIBFDATA_VECTOR_ELEMENT_VALUE_FLAG_MANAGED is set the vector
 * takes over management of the value and the value is freed when
 * no longer needed.
 *
 * Returns 1 if successful or -1 on error
 */
int libfdata_vector_set_element_value_by_index(
     libfdata_vector_t *vector,
     intptr_t *file_io_handle LIBFDATA_ATTRIBUTE_UNUSED,
     libfdata_cache_t *cache,
     int element_index,
     intptr_t *element_value,
     int (*free_element_value)(
            intptr_t **element_value,
            libcerror_error_t **error ),
     uint8_t write_flags,
     libcerror_error_t **error )
{
  libfdata_internal_vector_t *internal_vector = NULL;
  libfdata_range_t *segment_data_range        = NULL;
  static char *function                       = "libfdata_vector_set_element_value_by_index";
  off64_t element_data_offset                 = 0;

  LIBFDATA_UNREFERENCED_PARAMETER( file_io_handle )

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

    return( -1 );
  }
  internal_vector = (libfdata_internal_vector_t *) vector;

  if( internal_vector->element_data_size == 0 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid vector - element data size value out of bounds.",
     function );

    return( -1 );
  }
  if( ( internal_vector->size == 0 )
   || ( internal_vector->size > (off64_t) INT64_MAX ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid vector - size value out of bounds.",
     function );

    return( -1 );
  }
  if( ( element_index < 0 )
   || ( (uint64_t) element_index > ( (uint64_t) INT64_MAX / internal_vector->element_data_size ) ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid element index value out of bounds.",
     function );

    return( -1 );
  }
  element_data_offset = (off64_t) ( element_index * internal_vector->element_data_size );

  if( (size64_t) element_data_offset > internal_vector->size )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid element index value out of bounds.",
     function );

    return( -1 );
  }
  if( libfdata_segments_array_get_data_range_at_offset(
       internal_vector->segments_array,
       element_data_offset,
       &element_data_offset,
       &segment_data_range,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve segment data range for offset: %" PRIi64 " (0x%08" PRIx64 ").",
     function,
     element_data_offset,
     element_data_offset );

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

    return( -1 );
  }
  if( segment_data_range->offset > ( (off64_t) INT64_MAX - element_data_offset ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid element data offset value out of bounds.",
     function );

    return( -1 );
  }
  element_data_offset += segment_data_range->offset;

  if( libfcache_cache_set_value_by_identifier(
       (libfcache_cache_t *) cache,
       segment_data_range->file_index,
       element_data_offset,
       internal_vector->timestamp,
       element_value,
       free_element_value,
       write_flags,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to set value in cache.",
     function );

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

/* Retrieves the size
 * Returns 1 if successful or -1 on error
 */
int libfdata_vector_get_size(
     libfdata_vector_t *vector,
     size64_t *size,
     libcerror_error_t **error )
{
  libfdata_internal_vector_t *internal_vector = NULL;
  static char *function                       = "libfdata_vector_get_size";

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

    return( -1 );
  }
  internal_vector = (libfdata_internal_vector_t *) vector;

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

    return( -1 );
  }
  if( ( internal_vector->flags & LIBFDATA_FLAG_CALCULATE_MAPPED_RANGES ) != 0 )
  {
    if( libfdata_segments_array_calculate_mapped_ranges(
         internal_vector->segments_array,
         internal_vector->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_vector->flags &= ~( LIBFDATA_FLAG_CALCULATE_MAPPED_RANGES );
  }
  *size = internal_vector->size;

  return( 1 );
}


Coverage Report

Created: 2024-02-25 07:20