/*

 * Date and time functions

 *

 * Copyright (C) 2006-2024, Joachim Metz <joachim.metz@gmail.com>

 *

 * Refer to AUTHORS for acknowledgements.

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU Lesser General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public License

 * along with this program.  If not, see <https://www.gnu.org/licenses/>.

 */

#include <common.h>

#include <memory.h>

#include <types.h>

#if defined( HAVE_SYS_TIME_H )

#include <sys/time.h>

#endif

#include <time.h>

#include "libewf_date_time.h"

#include "libewf_libcerror.h"

/* Returns a structured representation of a time using the local timezone, or NULL on error

 */

int libewf_date_time_localtime(

     const time_t *timestamp,

     struct tm *time_elements,

     libcerror_error_t **error )

{

#if ( defined( HAVE_LOCALTIME ) && !defined( HAVE_LOCALTIME_R ) ) || ( defined( WINAPI ) && !defined( _MSC_VER ) )

  struct tm *static_time_elements = NULL;

#endif

  static char *function           = "libewf_date_time_localtime";

  if( timestamp == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid time stamp.",

     function );

    return( -1 );

  }

  if( time_elements == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid time elements.",

     function );

    return( -1 );

  }

#if defined( _MSC_VER )

  if( localtime_s(

       time_elements,

       timestamp ) != 0 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to set time elements.",

     function );

    return( -1 );

  }

#elif defined( HAVE_LOCALTIME_R )

  if( localtime_r(

       timestamp,

       time_elements ) == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to set time elements.",

     function );

    return( -1 );

  }

#elif defined( HAVE_LOCALTIME ) || defined( WINAPI )

  static_time_elements = localtime(

                          timestamp );

  if( static_time_elements == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,

     "%s: unable to create static time elements.",

     function );

    return( -1 );

  }

  if( memory_copy(

       time_elements,

       static_time_elements,

       sizeof( struct tm ) ) == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_COPY_FAILED,

     "%s: unable to set time elements.",

     function );

    return( -1 );

  }

#endif

  return( 1 );

}