reactos/sdk/lib/crt/time/ctime.c

55 lines
1.5 KiB
C

/*
* COPYRIGHT: LGPL, See LGPL.txt in the top level directory
* PROJECT: ReactOS CRT library
* FILE: lib/sdk/crt/time/ctime.c
* PURPOSE: Implementation of ctime, _ctime_s
* PROGRAMERS: Timo Kreuzer
*/
#define MINGW_HAS_SECURE_API 1
#include <errno.h>
#define RC_INVOKED 1 // to prevent inline functions
#include <tchar.h>
#include <time.h>
#include "bitsfixup.h"
/* Doesn't really exist, but we need it here */
_CRTIMP errno_t __cdecl localtime_s(struct tm *_Tm,const time_t *_Time);
/******************************************************************************
* \name _tctime_s
* \brief Converts a time_t value into a string.
* \param buffer Buffer that receives the string (26 characters).
* \param numberOfElements Size of the buffer in characters.
* \param time Pointer to the UTC time.
*/
errno_t
_tctime_s(_TCHAR *buffer, size_t numberOfElements, const time_t *time)
{
struct tm _tm;
if (localtime_s(&_tm, time) == EINVAL)
{
return EINVAL;
}
return _tasctime_s(buffer, numberOfElements, &_tm);
}
/******************************************************************************
* \name _tctime
* \brief Converts a time_t value into a string and returns a pointer to it.
* \param time Pointer to the UTC time.
* \remarks The string is stored in thread local buffer, shared between
* ctime, gmtime and localtime (both 32 and 64 bit versions).
*/
_TCHAR *
_tctime(const time_t *ptime)
{
struct tm *ptm = localtime(ptime);
if (!ptm)
{
return 0;
}
return _tasctime(ptm);
}