/*

 * File entry functions

 *

 * Copyright (C) 2021-2024, 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 "libfsfat_definitions.h"

#include "libfsfat_directory.h"

#include "libfsfat_directory_entry.h"

#include "libfsfat_extent.h"

#include "libfsfat_file_entry.h"

#include "libfsfat_file_system.h"

#include "libfsfat_io_handle.h"

#include "libfsfat_libbfio.h"

#include "libfsfat_libcdata.h"

#include "libfsfat_libcerror.h"

#include "libfsfat_libcthreads.h"

#include "libfsfat_libfdata.h"

#include "libfsfat_types.h"

/* Creates a file entry

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

 * Returns 1 if successful or -1 on error

 */

int libfsfat_file_entry_initialize(

     libfsfat_file_entry_t **file_entry,

     libfsfat_io_handle_t *io_handle,

     libbfio_handle_t *file_io_handle,

     libfsfat_file_system_t *file_system,

     uint64_t identifier,

     libfsfat_directory_entry_t *directory_entry,

     libfsfat_directory_t *directory,

     libcerror_error_t **error )

{

  libfsfat_internal_file_entry_t *internal_file_entry = NULL;

  static char *function                               = "libfsfat_file_entry_initialize";

  size64_t data_size                                  = 0;

  size64_t valid_data_size                            = 0;

  uint32_t cluster_number                             = 0;

  uint16_t file_attribute_flags                       = 0;

  if( file_entry == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file entry.",

     function );

    return( -1 );

  }

  if( *file_entry != NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,

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

     function );

    return( -1 );

  }

  if( io_handle == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid IO handle.",

     function );

    return( -1 );

  }

  if( directory_entry != NULL )

  {

    if( libfsfat_directory_entry_get_file_attribute_flags(

         directory_entry,

         &file_attribute_flags,

         error ) == -1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_GET_FAILED,

       "%s: unable to retrieve file attribute flags from directory entry.",

       function );

      goto on_error;

    }

    if( libfsfat_directory_entry_get_data_start_cluster(

         directory_entry,

         &cluster_number,

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_GET_FAILED,

       "%s: unable to retrieve directory entry data start cluster.",

       function );

      goto on_error;

    }

    if( libfsfat_directory_entry_get_data_size(

         directory_entry,

         &data_size,

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_GET_FAILED,

       "%s: unable to retrieve data size from directory entry.",

       function );

      goto on_error;

    }

    if( libfsfat_directory_entry_get_valid_data_size(

         directory_entry,

         &valid_data_size,

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_GET_FAILED,

       "%s: unable to retrieve data size from directory entry.",

       function );

      goto on_error;

    }

    if( valid_data_size > 0 )

    {

      data_size = valid_data_size;

    }

  }

  internal_file_entry = memory_allocate_structure(

                         libfsfat_internal_file_entry_t );

  if( internal_file_entry == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,

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

     function );

    goto on_error;

  }

  if( memory_set(

       internal_file_entry,

       0,

       sizeof( libfsfat_internal_file_entry_t ) ) == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_SET_FAILED,

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

     function );

    memory_free(

     internal_file_entry );

    return( -1 );

  }

  if( libcdata_array_initialize(

       &( internal_file_entry->data_extents_array ),

       0,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,

     "%s: unable to create data extents array.",

     function );

    goto on_error;

  }

#if defined( HAVE_LIBFSFAT_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_initialize(

       &( internal_file_entry->read_write_lock ),

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,

     "%s: unable to initialize read/write lock.",

     function );

    goto on_error;

  }

#endif

  internal_file_entry->io_handle            = io_handle;

  internal_file_entry->file_io_handle       = file_io_handle;

  internal_file_entry->file_system          = file_system;

  internal_file_entry->identifier           = identifier;

  internal_file_entry->directory_entry      = directory_entry;

  internal_file_entry->file_attribute_flags = file_attribute_flags;

  internal_file_entry->cluster_number       = cluster_number;

  internal_file_entry->data_size            = data_size;

  internal_file_entry->directory            = directory;

  *file_entry = (libfsfat_file_entry_t *) internal_file_entry;

  return( 1 );

on_error:

  if( internal_file_entry != NULL )

  {

    memory_free(

     internal_file_entry );

  }

  return( -1 );

}

/* Frees a file entry

 * Returns 1 if successful or -1 on error

 */

int libfsfat_file_entry_free(

     libfsfat_file_entry_t **file_entry,

     libcerror_error_t **error )

{

  libfsfat_internal_file_entry_t *internal_file_entry = NULL;

  static char *function                               = "libfsfat_file_entry_free";

  int result                                          = 1;

  if( file_entry == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file entry.",

     function );

    return( -1 );

  }

  if( *file_entry != NULL )

  {

    internal_file_entry = (libfsfat_internal_file_entry_t *) *file_entry;

    *file_entry         = NULL;

#if defined( HAVE_LIBFSFAT_MULTI_THREAD_SUPPORT )

    if( libcthreads_read_write_lock_free(

         &( internal_file_entry->read_write_lock ),

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

       "%s: unable to free read/write lock.",

       function );

      result = -1;

    }

#endif

    if( internal_file_entry->directory_entry != NULL )

    {

      if( libfsfat_directory_entry_free(

           &( internal_file_entry->directory_entry ),

           error ) != 1 )

      {

        libcerror_error_set(

         error,

         LIBCERROR_ERROR_DOMAIN_RUNTIME,

         LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

         "%s: unable to free directory entry.",

         function );

        result = -1;

      }

    }

    if( ( internal_file_entry->directory != NULL )

     && ( ( internal_file_entry->flags & LIBFSFAT_FILE_ENTRY_FLAG_MANAGE_DIRECTORY ) != 0 ) )

    {

      if( libfsfat_directory_free(

           &( internal_file_entry->directory ),

           error ) != 1 )

      {

        libcerror_error_set(

         error,

         LIBCERROR_ERROR_DOMAIN_RUNTIME,

         LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

         "%s: unable to free directory.",

         function );

        result = -1;

      }

    }

    if( internal_file_entry->cluster_block_stream != NULL )

    {

      if( libfdata_stream_free(

           &( internal_file_entry->cluster_block_stream ),

           error ) != 1 )

      {

        libcerror_error_set(

         error,

         LIBCERROR_ERROR_DOMAIN_RUNTIME,

         LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

         "%s: unable to free cluster block stream.",

         function );

        result = -1;

      }

    }

    if( libcdata_array_free(

         &( internal_file_entry->data_extents_array ),

         (int (*)(intptr_t **, libcerror_error_t **)) &libfsfat_extent_free,

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

       "%s: unable to free data extents array.",

       function );

      result = -1;

    }

    /* The file_io_handle, io_handle and directory_entry references are freed elsewhere

     */

    memory_free(

     internal_file_entry );

  }

  return( result );

}

/* Determines the directory

 * Returns 1 if successful or -1 on error

 */

int libfsfat_internal_file_entry_get_directory(

     libfsfat_internal_file_entry_t *internal_file_entry,

     libcerror_error_t **error )

{

  static char *function   = "libfsfat_internal_file_entry_get_directory";

  uint32_t cluster_number = 0;

  if( internal_file_entry == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file entry.",

     function );

    return( -1 );

  }

  if( internal_file_entry->directory != NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,

     "%s: invalid file entry - directory value already set.",

     function );

    return( -1 );

  }

  if( ( internal_file_entry->file_attribute_flags & LIBFSFAT_FILE_ATTRIBUTE_FLAG_DIRECTORY ) != 0 )

  {

    if( libfsfat_directory_entry_get_data_start_cluster(

         internal_file_entry->directory_entry,

         &cluster_number,

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_GET_FAILED,

       "%s: unable to retrieve directory entry data start cluster.",

       function );

      goto on_error;

    }

    if( libfsfat_file_system_read_directory(

         internal_file_entry->file_system,

         internal_file_entry->file_io_handle,

         cluster_number,

         &( internal_file_entry->directory ),

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_IO,

       LIBCERROR_IO_ERROR_READ_FAILED,

       "%s: unable to read directory: %" PRIu32 ".",

       function,

       cluster_number );

      goto on_error;

    }

    internal_file_entry->flags |= LIBFSFAT_FILE_ENTRY_FLAG_MANAGE_DIRECTORY;

  }

  return( 1 );

on_error:

  if( internal_file_entry->directory != NULL )

  {

    libfsfat_directory_free(

     &( internal_file_entry->directory ),

     NULL );

  }

  return( -1 );

}

/* Retrieves the (virtual) identifier

 * The identifier is the offset of the short name directory entry

 * Returns 1 if successful or -1 on error

 */

int libfsfat_file_entry_get_identifier(

     libfsfat_file_entry_t *file_entry,

     uint64_t *identifier,

     libcerror_error_t **error )

{

  libfsfat_internal_file_entry_t *internal_file_entry = NULL;

  static char *function                               = "libfsfat_file_entry_get_identifier";

  if( file_entry == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file entry.",

     function );

    return( -1 );

  }

  internal_file_entry = (libfsfat_internal_file_entry_t *) file_entry;

  if( identifier == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid identifier.",

     function );

    return( -1 );

  }

#if defined( HAVE_LIBFSFAT_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_grab_for_read(

       internal_file_entry->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to grab read/write lock for reading.",

     function );

    return( -1 );

  }

#endif

  *identifier = internal_file_entry->identifier;

#if defined( HAVE_LIBFSFAT_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_release_for_read(

       internal_file_entry->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to release read/write lock for reading.",

     function );

    return( -1 );

  }

#endif

  return( 1 );

}

/* Retrieves the access date and time

 * The timestamp is an unsigned 64-bit integer containing the 10 milli seconds intervals since January 1, 1980

 * This value is retrieved from the short file name directory entry

 * Returns 1 if successful, 0 if not available or -1 on error

 */

int libfsfat_file_entry_get_access_time(

     libfsfat_file_entry_t *file_entry,

     uint64_t *fat_timestamp,

     libcerror_error_t **error )

{

  libfsfat_internal_file_entry_t *internal_file_entry = NULL;

  static char *function                               = "libfsfat_file_entry_get_access_time";

  int result                                          = 0;

  if( file_entry == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file entry.",

     function );

    return( -1 );

  }

  internal_file_entry = (libfsfat_internal_file_entry_t *) file_entry;

#if defined( HAVE_LIBFSFAT_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_grab_for_read(

       internal_file_entry->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to grab read/write lock for reading.",

     function );

    return( -1 );

  }

#endif

  if( internal_file_entry->directory_entry != NULL )

  {

    result = libfsfat_directory_entry_get_access_time(

              internal_file_entry->directory_entry,

              fat_timestamp,

              error );

    if( result == -1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_GET_FAILED,

       "%s: unable to retrieve access time from directory entry.",

       function );

      result = -1;

    }

  }

#if defined( HAVE_LIBFSFAT_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_release_for_read(

       internal_file_entry->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to release read/write lock for reading.",

     function );

    return( -1 );

  }

#endif

  return( result );

}

/* Retrieves the creation date and time

 * The timestamp is an unsigned 64-bit integer containing the 10 milli seconds intervals since January 1, 1980

 * This value is retrieved from the short file name directory entry

 * Returns 1 if successful, 0 if not available or -1 on error

 */

int libfsfat_file_entry_get_creation_time(

     libfsfat_file_entry_t *file_entry,

     uint64_t *fat_date_time,

     libcerror_error_t **error )

{

  libfsfat_internal_file_entry_t *internal_file_entry = NULL;

  static char *function                               = "libfsfat_file_entry_get_creation_time";

  int result                                          = 0;

  if( file_entry == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file entry.",

     function );

    return( -1 );

  }

  internal_file_entry = (libfsfat_internal_file_entry_t *) file_entry;

#if defined( HAVE_LIBFSFAT_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_grab_for_read(

       internal_file_entry->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to grab read/write lock for reading.",

     function );

    return( -1 );

  }

#endif

  if( internal_file_entry->directory_entry != NULL )

  {

    result = libfsfat_directory_entry_get_creation_time(

              internal_file_entry->directory_entry,

              fat_date_time,

              error );

    if( result == -1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_GET_FAILED,

       "%s: unable to retrieve creation time from directory entry.",

       function );

      result = -1;

    }

  }

#if defined( HAVE_LIBFSFAT_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_release_for_read(

       internal_file_entry->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to release read/write lock for reading.",

     function );

    return( -1 );

  }

#endif

  return( result );

}

/* Retrieves the modification date and time

 * The timestamp is an unsigned 64-bit integer containing the 10 milli seconds intervals since January 1, 1980

 * This value is retrieved from the short file name directory entry

 * Returns 1 if successful, 0 if not available or -1 on error

 */

int libfsfat_file_entry_get_modification_time(

     libfsfat_file_entry_t *file_entry,

     uint64_t *fat_date_time,

     libcerror_error_t **error )

{

  libfsfat_internal_file_entry_t *internal_file_entry = NULL;

  static char *function                               = "libfsfat_file_entry_get_modification_time";

  int result                                          = 0;

  if( file_entry == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file entry.",

     function );

    return( -1 );

  }

  internal_file_entry = (libfsfat_internal_file_entry_t *) file_entry;

#if defined( HAVE_LIBFSFAT_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_grab_for_read(

       internal_file_entry->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to grab read/write lock for reading.",

     function );

    return( -1 );

  }

#endif

  if( internal_file_entry->directory_entry != NULL )

  {

    result = libfsfat_directory_entry_get_modification_time(

              internal_file_entry->directory_entry,

              fat_date_time,

              error );

    if( result == -1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_GET_FAILED,

       "%s: unable to retrieve modification time from directory entry.",

       function );

      result = -1;

    }

  }

#if defined( HAVE_LIBFSFAT_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_release_for_read(

       internal_file_entry->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to release read/write lock for reading.",

     function );

    return( -1 );

  }

#endif

  return( result );

}

/* Retrieves the file attribute flags

 * This value is retrieved from the short file name directory entry

 * Returns 1 if successful, 0 if not available or -1 on error

 */

int libfsfat_file_entry_get_file_attribute_flags(

     libfsfat_file_entry_t *file_entry,

     uint16_t *file_attribute_flags,

     libcerror_error_t **error )

{

  libfsfat_internal_file_entry_t *internal_file_entry = NULL;

  static char *function                               = "libfsfat_file_entry_get_file_attribute_flags";

  int result                                          = 0;

  if( file_entry == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file entry.",

     function );

    return( -1 );

  }

  internal_file_entry = (libfsfat_internal_file_entry_t *) file_entry;

#if defined( HAVE_LIBFSFAT_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_grab_for_read(

       internal_file_entry->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to grab read/write lock for reading.",

     function );

    return( -1 );

  }

#endif

  if( internal_file_entry->directory_entry != NULL )

  {

    result = libfsfat_directory_entry_get_file_attribute_flags(

              internal_file_entry->directory_entry,

              file_attribute_flags,

              error );

    if( result == -1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_GET_FAILED,

       "%s: unable to retrieve file attribute flags from directory entry.",

       function );

      result = -1;

    }

  }

#if defined( HAVE_LIBFSFAT_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_release_for_read(

       internal_file_entry->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to release read/write lock for reading.",

     function );

    return( -1 );

  }

#endif

  return( result );

}

/* Retrieves the size of the UTF-8 encoded name

 * The returned size includes the end of string character

 * This value is retrieved from the directory entry

 * Returns 1 if successful, 0 if not available or -1 on error

 */

int libfsfat_file_entry_get_utf8_name_size(

     libfsfat_file_entry_t *file_entry,

     size_t *utf8_string_size,

     libcerror_error_t **error )

{

  libfsfat_internal_file_entry_t *internal_file_entry = NULL;

  static char *function                               = "libfsfat_file_entry_get_utf8_name_size";

  int result                                          = 0;

  if( file_entry == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file entry.",

     function );

    return( -1 );

  }

  internal_file_entry = (libfsfat_internal_file_entry_t *) file_entry;

#if defined( HAVE_LIBFSFAT_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_grab_for_read(

       internal_file_entry->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to grab read/write lock for reading.",

     function );

    return( -1 );

  }

#endif

  if( internal_file_entry->directory_entry != NULL )

  {

    result = libfsfat_directory_entry_get_utf8_name_size(

              internal_file_entry->directory_entry,

              utf8_string_size,

              error );

    if( result != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_GET_FAILED,

       "%s: unable to retrieve size of UTF-8 name from directory entry.",

       function );

      result = -1;

    }

  }

#if defined( HAVE_LIBFSFAT_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_release_for_read(

       internal_file_entry->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to release read/write lock for reading.",

     function );

    return( -1 );

  }

#endif

  return( result );

}

/* Retrieves the UTF-8 encoded name

 * The size should include the end of string character

 * This value is retrieved from the directory entry

 * Returns 1 if successful, 0 if not available or -1 on error

 */

int libfsfat_file_entry_get_utf8_name(

     libfsfat_file_entry_t *file_entry,

     uint8_t *utf8_string,

     size_t utf8_string_size,

     libcerror_error_t **error )

{

  libfsfat_internal_file_entry_t *internal_file_entry = NULL;

  static char *function                               = "libfsfat_file_entry_get_utf8_name";

  int result                                          = 0;

  if( file_entry == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file entry.",

     function );