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/*
* msvcrt.dll date/time functions
*
* Copyright 1996,1998 Marcus Meissner
* Copyright 1996 Jukka Iivonen
* Copyright 1997,2000 Uwe Bonnes
* Copyright 2000 Jon Griffiths
* Copyright 2004 Hans Leidekker
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#define _POSIX_PTHREAD_SEMANTICS /* switch to a 2 arg style asctime_r on Solaris */
#include <time.h>
#ifdef HAVE_SYS_TIMES_H
# include <sys/times.h>
#endif
#include <limits.h>
#include "msvcrt.h"
#include "mtdll.h"
#include "winbase.h"
#include "winnls.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
static const int MonthLengths[2][12] =
{
{ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
{ 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
};
static inline int IsLeapYear(int Year)
{
return Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0);
}
static inline void msvcrt_tm_to_unix( struct tm *dest, const struct MSVCRT_tm *src )
{
memset( dest, 0, sizeof(*dest) );
dest->tm_sec = src->tm_sec;
dest->tm_min = src->tm_min;
dest->tm_hour = src->tm_hour;
dest->tm_mday = src->tm_mday;
dest->tm_mon = src->tm_mon;
dest->tm_year = src->tm_year;
dest->tm_wday = src->tm_wday;
dest->tm_yday = src->tm_yday;
dest->tm_isdst = src->tm_isdst;
}
static inline void unix_tm_to_msvcrt( struct MSVCRT_tm *dest, const struct tm *src )
{
memset( dest, 0, sizeof(*dest) );
dest->tm_sec = src->tm_sec;
dest->tm_min = src->tm_min;
dest->tm_hour = src->tm_hour;
dest->tm_mday = src->tm_mday;
dest->tm_mon = src->tm_mon;
dest->tm_year = src->tm_year;
dest->tm_wday = src->tm_wday;
dest->tm_yday = src->tm_yday;
dest->tm_isdst = src->tm_isdst;
}
#define SECSPERDAY 86400
/* 1601 to 1970 is 369 years plus 89 leap days */
#define SECS_1601_TO_1970 ((369 * 365 + 89) * (ULONGLONG)SECSPERDAY)
#define TICKSPERSEC 10000000
#define TICKSPERMSEC 10000
#define TICKS_1601_TO_1970 (SECS_1601_TO_1970 * TICKSPERSEC)
/**********************************************************************
* _mktime64 (MSVCRT.@)
*/
MSVCRT___time64_t CDECL MSVCRT__mktime64(struct MSVCRT_tm *mstm)
{
time_t secs;
struct tm tm;
msvcrt_tm_to_unix( &tm, mstm );
secs = mktime( &tm );
unix_tm_to_msvcrt( mstm, &tm );
return secs < 0 ? -1 : secs;
}
/**********************************************************************
* _mktime32 (MSVCRT.@)
*/
MSVCRT___time32_t CDECL MSVCRT__mktime32(struct MSVCRT_tm *mstm)
{
return MSVCRT__mktime64( mstm );
}
/**********************************************************************
* mktime (MSVCRT.@)
*/
#ifdef _WIN64
MSVCRT___time64_t CDECL MSVCRT_mktime(struct MSVCRT_tm *mstm)
{
return MSVCRT__mktime64( mstm );
}
#else
MSVCRT___time32_t CDECL MSVCRT_mktime(struct MSVCRT_tm *mstm)
{
return MSVCRT__mktime32( mstm );
}
#endif
/**********************************************************************
* _mkgmtime64 (MSVCRT.@)
*
* time->tm_isdst value is ignored
*/
MSVCRT___time64_t CDECL MSVCRT__mkgmtime64(struct MSVCRT_tm *time)
{
SYSTEMTIME st;
FILETIME ft;
MSVCRT___time64_t ret;
int i;
st.wMilliseconds = 0;
st.wSecond = time->tm_sec;
st.wMinute = time->tm_min;
st.wHour = time->tm_hour;
st.wDay = time->tm_mday;
st.wMonth = time->tm_mon+1;
st.wYear = time->tm_year+1900;
if(!SystemTimeToFileTime(&st, &ft))
return -1;
FileTimeToSystemTime(&ft, &st);
time->tm_wday = st.wDayOfWeek;
for(i=time->tm_yday=0; i<st.wMonth-1; i++)
time->tm_yday += MonthLengths[IsLeapYear(st.wYear)][i];
time->tm_yday += st.wDay-1;
ret = ((MSVCRT___time64_t)ft.dwHighDateTime<<32)+ft.dwLowDateTime;
ret = (ret-TICKS_1601_TO_1970)/TICKSPERSEC;
return ret;
}
/**********************************************************************
* _mkgmtime32 (MSVCRT.@)
*/
MSVCRT___time32_t CDECL MSVCRT__mkgmtime32(struct MSVCRT_tm *time)
{
return MSVCRT__mkgmtime64(time);
}
/**********************************************************************
* _mkgmtime (MSVCRT.@)
*/
#ifdef _WIN64
MSVCRT___time64_t CDECL MSVCRT__mkgmtime(struct MSVCRT_tm *time)
{
return MSVCRT__mkgmtime64(time);
}
#else
MSVCRT___time32_t CDECL MSVCRT__mkgmtime(struct MSVCRT_tm *time)
{
return MSVCRT__mkgmtime32(time);
}
#endif
/*********************************************************************
* _localtime64 (MSVCRT.@)
*/
struct MSVCRT_tm* CDECL MSVCRT__localtime64(const MSVCRT___time64_t* secs)
{
struct tm *tm;
thread_data_t *data;
time_t seconds = *secs;
if (seconds < 0) return NULL;
_mlock(_TIME_LOCK);
if (!(tm = localtime( &seconds))) {
_munlock(_TIME_LOCK);
return NULL;
}
data = msvcrt_get_thread_data();
unix_tm_to_msvcrt( &data->time_buffer, tm );
_munlock(_TIME_LOCK);
return &data->time_buffer;
}
/*********************************************************************
* _localtime32 (MSVCRT.@)
*/
struct MSVCRT_tm* CDECL MSVCRT__localtime32(const MSVCRT___time32_t* secs)
{
MSVCRT___time64_t secs64 = *secs;
return MSVCRT__localtime64( &secs64 );
}
/*********************************************************************
* localtime (MSVCRT.@)
*/
#ifdef _WIN64
struct MSVCRT_tm* CDECL MSVCRT_localtime(const MSVCRT___time64_t* secs)
{
return MSVCRT__localtime64( secs );
}
#else
struct MSVCRT_tm* CDECL MSVCRT_localtime(const MSVCRT___time32_t* secs)
{
return MSVCRT__localtime32( secs );
}
#endif
/*********************************************************************
* _gmtime64 (MSVCRT.@)
*/
struct MSVCRT_tm* CDECL MSVCRT__gmtime64(const MSVCRT___time64_t* secs)
{
thread_data_t * const data = msvcrt_get_thread_data();
int i;
FILETIME ft;
SYSTEMTIME st;
ULONGLONG time = *secs * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1970;
ft.dwHighDateTime = (UINT)(time >> 32);
ft.dwLowDateTime = (UINT)time;
FileTimeToSystemTime(&ft, &st);
if (st.wYear < 1970) return NULL;
data->time_buffer.tm_sec = st.wSecond;
data->time_buffer.tm_min = st.wMinute;
data->time_buffer.tm_hour = st.wHour;
data->time_buffer.tm_mday = st.wDay;
data->time_buffer.tm_year = st.wYear - 1900;
data->time_buffer.tm_mon = st.wMonth - 1;
data->time_buffer.tm_wday = st.wDayOfWeek;
for (i = data->time_buffer.tm_yday = 0; i < st.wMonth - 1; i++) {
data->time_buffer.tm_yday += MonthLengths[IsLeapYear(st.wYear)][i];
}
data->time_buffer.tm_yday += st.wDay - 1;
data->time_buffer.tm_isdst = 0;
return &data->time_buffer;
}
/*********************************************************************
* _gmtime32 (MSVCRT.@)
*/
struct MSVCRT_tm* CDECL MSVCRT__gmtime32(const MSVCRT___time32_t* secs)
{
MSVCRT___time64_t secs64 = *secs;
return MSVCRT__gmtime64( &secs64 );
}
/*********************************************************************
* gmtime (MSVCRT.@)
*/
#ifdef _WIN64
struct MSVCRT_tm* CDECL MSVCRT_gmtime(const MSVCRT___time64_t* secs)
{
return MSVCRT__gmtime64( secs );
}
#else
struct MSVCRT_tm* CDECL MSVCRT_gmtime(const MSVCRT___time32_t* secs)
{
return MSVCRT__gmtime32( secs );
}
#endif
/**********************************************************************
* _strdate (MSVCRT.@)
*/
char* CDECL _strdate(char* date)
{
static const char format[] = "MM'/'dd'/'yy";
GetDateFormatA(LOCALE_NEUTRAL, 0, NULL, format, date, 9);
return date;
}
/**********************************************************************
* _wstrdate (MSVCRT.@)
*/
MSVCRT_wchar_t* CDECL _wstrdate(MSVCRT_wchar_t* date)
{
static const WCHAR format[] = { 'M','M','\'','/','\'','d','d','\'','/','\'','y','y',0 };
GetDateFormatW(LOCALE_NEUTRAL, 0, NULL, format, date, 9);
return date;
}
/*********************************************************************
* _strtime (MSVCRT.@)
*/
char* CDECL _strtime(char* time)
{
static const char format[] = "HH':'mm':'ss";
GetTimeFormatA(LOCALE_NEUTRAL, 0, NULL, format, time, 9);
return time;
}
/*********************************************************************
* _wstrtime (MSVCRT.@)
*/
MSVCRT_wchar_t* CDECL _wstrtime(MSVCRT_wchar_t* time)
{
static const WCHAR format[] = { 'H','H','\'',':','\'','m','m','\'',':','\'','s','s',0 };
GetTimeFormatW(LOCALE_NEUTRAL, 0, NULL, format, time, 9);
return time;
}
/*********************************************************************
* clock (MSVCRT.@)
*/
MSVCRT_clock_t CDECL MSVCRT_clock(void)
{
FILETIME ftc, fte, ftk, ftu;
ULONGLONG utime, ktime;
MSVCRT_clock_t clock;
GetProcessTimes(GetCurrentProcess(), &ftc, &fte, &ftk, &ftu);
ktime = ((ULONGLONG)ftk.dwHighDateTime << 32) | ftk.dwLowDateTime;
utime = ((ULONGLONG)ftu.dwHighDateTime << 32) | ftu.dwLowDateTime;
clock = (utime + ktime) / (TICKSPERSEC / MSVCRT_CLOCKS_PER_SEC);
return clock;
}
/*********************************************************************
* _difftime64 (MSVCRT.@)
*/
double CDECL MSVCRT__difftime64(MSVCRT___time64_t time1, MSVCRT___time64_t time2)
{
return (double)(time1 - time2);
}
/*********************************************************************
* _difftime32 (MSVCRT.@)
*/
double CDECL MSVCRT__difftime32(MSVCRT___time32_t time1, MSVCRT___time32_t time2)
{
return (double)(time1 - time2);
}
/*********************************************************************
* difftime (MSVCRT.@)
*/
#ifdef _WIN64
double CDECL MSVCRT_difftime(MSVCRT___time64_t time1, MSVCRT___time64_t time2)
{
return MSVCRT__difftime64( time1, time2 );
}
#else
double CDECL MSVCRT_difftime(MSVCRT___time32_t time1, MSVCRT___time32_t time2)
{
return MSVCRT__difftime32( time1, time2 );
}
#endif
/*********************************************************************
* _ftime64 (MSVCRT.@)
*/
void CDECL MSVCRT__ftime64(struct MSVCRT___timeb64 *buf)
{
TIME_ZONE_INFORMATION tzinfo;
FILETIME ft;
ULONGLONG time;
DWORD tzid = GetTimeZoneInformation(&tzinfo);
GetSystemTimeAsFileTime(&ft);
time = ((ULONGLONG)ft.dwHighDateTime << 32) | ft.dwLowDateTime;
buf->time = time / TICKSPERSEC - SECS_1601_TO_1970;
buf->millitm = (time % TICKSPERSEC) / TICKSPERMSEC;
buf->timezone = tzinfo.Bias +
( tzid == TIME_ZONE_ID_STANDARD ? tzinfo.StandardBias :
( tzid == TIME_ZONE_ID_DAYLIGHT ? tzinfo.DaylightBias : 0 ));
buf->dstflag = (tzid == TIME_ZONE_ID_DAYLIGHT?1:0);
}
/*********************************************************************
* _ftime32 (MSVCRT.@)
*/
void CDECL MSVCRT__ftime32(struct MSVCRT___timeb32 *buf)
{
struct MSVCRT___timeb64 buf64;
MSVCRT__ftime64( &buf64 );
buf->time = buf64.time;
buf->millitm = buf64.millitm;
buf->timezone = buf64.timezone;
buf->dstflag = buf64.dstflag;
}
/*********************************************************************
* _ftime (MSVCRT.@)
*/
#ifdef _WIN64
void CDECL MSVCRT__ftime(struct MSVCRT___timeb64 *buf)
{
return MSVCRT__ftime64( buf );
}
#else
void CDECL MSVCRT__ftime(struct MSVCRT___timeb32 *buf)
{
return MSVCRT__ftime32( buf );
}
#endif
/*********************************************************************
* _time64 (MSVCRT.@)
*/
MSVCRT___time64_t CDECL MSVCRT__time64(MSVCRT___time64_t *buf)
{
MSVCRT___time64_t curtime;
struct MSVCRT___timeb64 tb;
MSVCRT__ftime64(&tb);
curtime = tb.time;
return buf ? *buf = curtime : curtime;
}
/*********************************************************************
* _time32 (MSVCRT.@)
*/
MSVCRT___time32_t CDECL MSVCRT__time32(MSVCRT___time32_t *buf)
{
MSVCRT___time32_t curtime;
struct MSVCRT___timeb64 tb;
MSVCRT__ftime64(&tb);
curtime = tb.time;
return buf ? *buf = curtime : curtime;
}
/*********************************************************************
* time (MSVCRT.@)
*/
#ifdef _WIN64
MSVCRT___time64_t CDECL MSVCRT_time(MSVCRT___time64_t* buf)
{
return MSVCRT__time64( buf );
}
#else
MSVCRT___time32_t CDECL MSVCRT_time(MSVCRT___time32_t* buf)
{
return MSVCRT__time32( buf );
}
#endif
/*********************************************************************
* _daylight (MSVCRT.@)
*/
int MSVCRT___daylight = 0;
/*********************************************************************
* __p_daylight (MSVCRT.@)
*/
int * CDECL MSVCRT___p__daylight(void)
{
return &MSVCRT___daylight;
}
/*********************************************************************
* _dstbias (MSVCRT.@)
*/
int MSVCRT__dstbias = 0;
/*********************************************************************
* __p_dstbias (MSVCRT.@)
*/
int * CDECL __p__dstbias(void)
{
return &MSVCRT__dstbias;
}
/*********************************************************************
* _timezone (MSVCRT.@)
*/
MSVCRT_long MSVCRT___timezone = 0;
/*********************************************************************
* __p_timezone (MSVCRT.@)
*/
MSVCRT_long * CDECL MSVCRT___p__timezone(void)
{
return &MSVCRT___timezone;
}
/*********************************************************************
* _tzname (MSVCRT.@)
* NOTES
* Some apps (notably Mozilla) insist on writing to these, so the buffer
* must be large enough. The size is picked based on observation of
* Windows XP.
*/
static char tzname_std[64] = "";
static char tzname_dst[64] = "";
char *MSVCRT__tzname[2] = { tzname_std, tzname_dst };
/*********************************************************************
* __p_tzname (MSVCRT.@)
*/
char ** CDECL __p__tzname(void)
{
return MSVCRT__tzname;
}
/*********************************************************************
* _tzset (MSVCRT.@)
*/
void CDECL MSVCRT__tzset(void)
{
tzset();
#if defined(HAVE_TIMEZONE) && defined(HAVE_DAYLIGHT)
MSVCRT___daylight = daylight;
MSVCRT___timezone = timezone;
#else
{
static const time_t seconds_in_year = (365 * 24 + 6) * 3600;
time_t t;
struct tm *tmp;
int zone_january, zone_july;
_mlock(_TIME_LOCK);
t = (time(NULL) / seconds_in_year) * seconds_in_year;
tmp = localtime(&t);
zone_january = -tmp->tm_gmtoff;
t += seconds_in_year / 2;
tmp = localtime(&t);
zone_july = -tmp->tm_gmtoff;
_munlock(_TIME_LOCK);
MSVCRT___daylight = (zone_january != zone_july);
MSVCRT___timezone = max(zone_january, zone_july);
}
#endif
lstrcpynA(tzname_std, tzname[0], sizeof(tzname_std));
tzname_std[sizeof(tzname_std) - 1] = '\0';
lstrcpynA(tzname_dst, tzname[1], sizeof(tzname_dst));
tzname_dst[sizeof(tzname_dst) - 1] = '\0';
}
/*********************************************************************
* strftime (MSVCRT.@)
*/
MSVCRT_size_t CDECL MSVCRT_strftime( char *str, MSVCRT_size_t max, const char *format,
const struct MSVCRT_tm *mstm )
{
struct tm tm;
msvcrt_tm_to_unix( &tm, mstm );
return strftime( str, max, format, &tm );
}
/*********************************************************************
* wcsftime (MSVCRT.@)
*/
MSVCRT_size_t CDECL MSVCRT_wcsftime( MSVCRT_wchar_t *str, MSVCRT_size_t max,
const MSVCRT_wchar_t *format, const struct MSVCRT_tm *mstm )
{
char *s, *fmt;
MSVCRT_size_t len;
TRACE("%p %ld %s %p\n", str, max, debugstr_w(format), mstm );
len = WideCharToMultiByte( CP_UNIXCP, 0, format, -1, NULL, 0, NULL, NULL );
if (!(fmt = MSVCRT_malloc( len ))) return 0;
WideCharToMultiByte( CP_UNIXCP, 0, format, -1, fmt, len, NULL, NULL );
if ((s = MSVCRT_malloc( max*4 )))
{
struct tm tm;
msvcrt_tm_to_unix( &tm, mstm );
if (!strftime( s, max*4, fmt, &tm )) s[0] = 0;
len = MultiByteToWideChar( CP_UNIXCP, 0, s, -1, str, max );
if (len) len--;
MSVCRT_free( s );
}
else len = 0;
MSVCRT_free( fmt );
return len;
}
/*********************************************************************
* asctime (MSVCRT.@)
*/
char * CDECL MSVCRT_asctime(const struct MSVCRT_tm *mstm)
{
thread_data_t *data = msvcrt_get_thread_data();
struct tm tm;
msvcrt_tm_to_unix( &tm, mstm );
if (!data->asctime_buffer)
data->asctime_buffer = MSVCRT_malloc( 30 ); /* ought to be enough */
/* FIXME: may want to map from Unix codepage to CP_ACP */
#ifdef HAVE_ASCTIME_R
asctime_r( &tm, data->asctime_buffer );
#else
strcpy( data->asctime_buffer, asctime(&tm) );
#endif
return data->asctime_buffer;
}
/*********************************************************************
* _wasctime (MSVCRT.@)
*/
MSVCRT_wchar_t * CDECL MSVCRT__wasctime(const struct MSVCRT_tm *mstm)
{
thread_data_t *data = msvcrt_get_thread_data();
struct tm tm;
char buffer[30];
msvcrt_tm_to_unix( &tm, mstm );
if (!data->wasctime_buffer)
data->wasctime_buffer = MSVCRT_malloc( 30*sizeof(MSVCRT_wchar_t) ); /* ought to be enough */
#ifdef HAVE_ASCTIME_R
asctime_r( &tm, buffer );
#else
strcpy( buffer, asctime(&tm) );
#endif
MultiByteToWideChar( CP_UNIXCP, 0, buffer, -1, data->wasctime_buffer, 30 );
return data->wasctime_buffer;
}
/*********************************************************************
* _ctime64 (MSVCRT.@)
*/
char * CDECL MSVCRT__ctime64(const MSVCRT___time64_t *time)
{
struct MSVCRT_tm *t;
t = MSVCRT__localtime64( time );
if (!t) return NULL;
return MSVCRT_asctime( t );
}
/*********************************************************************
* _ctime32 (MSVCRT.@)
*/
char * CDECL MSVCRT__ctime32(const MSVCRT___time32_t *time)
{
struct MSVCRT_tm *t;
t = MSVCRT__localtime32( time );
if (!t) return NULL;
return MSVCRT_asctime( t );
}
/*********************************************************************
* ctime (MSVCRT.@)
*/
#ifdef _WIN64
char * CDECL MSVCRT_ctime(const MSVCRT___time64_t *time)
{
return MSVCRT__ctime64( time );
}
#else
char * CDECL MSVCRT_ctime(const MSVCRT___time32_t *time)
{
return MSVCRT__ctime32( time );
}
#endif
/*********************************************************************
* _wctime64 (MSVCRT.@)
*/
MSVCRT_wchar_t * CDECL MSVCRT__wctime64(const MSVCRT___time64_t *time)
{
return MSVCRT__wasctime( MSVCRT__localtime64(time) );
}
/*********************************************************************
* _wctime32 (MSVCRT.@)
*/
MSVCRT_wchar_t * CDECL MSVCRT__wctime32(const MSVCRT___time32_t *time)
{
return MSVCRT__wasctime( MSVCRT__localtime32(time) );
}
/*********************************************************************
* _wctime (MSVCRT.@)
*/
#ifdef _WIN64
MSVCRT_wchar_t * CDECL MSVCRT__wctime(const MSVCRT___time64_t *time)
{
return MSVCRT__wctime64( time );
}
#else
MSVCRT_wchar_t * CDECL MSVCRT__wctime(const MSVCRT___time32_t *time)
{
return MSVCRT__wctime32( time );
}
#endif
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