60 lines
2.2 KiB
C
60 lines
2.2 KiB
C
/****************************************************************************
|
|
* libs/libc/time/lib_ctime.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <time.h>
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: ctime
|
|
*
|
|
* Description:
|
|
* ctime and ctime_r convert the time provided in seconds since the
|
|
* epoch to a string representation. ctime is not re-entrant; ctime_r is
|
|
* re-entrant.
|
|
*
|
|
* Input Parameters:
|
|
* timep - The current time represented as seconds since the epoch.
|
|
*
|
|
* Returned Value:
|
|
* On success, a pointer to the string is returned; on failure, NULL is
|
|
* returned.
|
|
*
|
|
****************************************************************************/
|
|
|
|
FAR char *ctime(FAR const time_t *timep)
|
|
{
|
|
/* Section 4.12.3.2 of X3.159-1989 requires that
|
|
* The ctime function converts the calendar time pointed to by timer
|
|
* to local time in the form of a string. It is equivalent to
|
|
* asctime(localtime(timer))
|
|
*/
|
|
|
|
return asctime(localtime(timep));
|
|
}
|