93 lines
3.0 KiB
C
93 lines
3.0 KiB
C
/****************************************************************************
|
|
* libs/libc/time/lib_asctimer.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 <stdio.h>
|
|
|
|
#include <sys/param.h>
|
|
|
|
#include <nuttx/time.h>
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
/* Note: These strings duplicate other definitions in other files. These
|
|
* definitions could be combined to save a little FLASH space.
|
|
*/
|
|
|
|
static const char * const g_wday_name[7] =
|
|
{
|
|
"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
|
|
};
|
|
|
|
static const char * const g_mon_name[12] =
|
|
{
|
|
"Jan", "Feb", "Mar", "Apr", "May", "Jun",
|
|
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
|
|
};
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: asctime_r
|
|
*
|
|
* Description:
|
|
* asctime and asctime_r convert the time provided in a struct tm to a
|
|
* string representation. asctime is not re-entrant; asctime_r is re-
|
|
* entrant.
|
|
*
|
|
* Input Parameters:
|
|
* tp - Pointer to the time to be converted.
|
|
* buf - A user provided buffer to receive the 26 character time string.
|
|
*
|
|
* Returned Value:
|
|
* On success, the pointer to the 'buf' is returned; on failure, NULL is
|
|
* returned.
|
|
*
|
|
****************************************************************************/
|
|
|
|
FAR char *asctime_r(FAR const struct tm *tp, FAR char *buf)
|
|
{
|
|
char tmp[128];
|
|
|
|
if (tp == NULL ||
|
|
tp->tm_wday >= nitems(g_wday_name) ||
|
|
tp->tm_mon >= nitems(g_mon_name))
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
snprintf(tmp, sizeof(tmp), "%.3s %.3s%3d %.2d:%.2d:%.2d %d\n",
|
|
g_wday_name[tp->tm_wday], g_mon_name[tp->tm_mon],
|
|
tp->tm_mday, tp->tm_hour, tp->tm_min, tp->tm_sec,
|
|
TM_YEAR_BASE + tp->tm_year);
|
|
strlcpy(buf, tmp, 26);
|
|
|
|
return buf;
|
|
}
|