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wine/dlls/msvcrt/time.c
Nikolay Sivov 1228f0bba5 msvcrt: Added __dstbias() export.
2014-09-10 21:36:52 +02:00

1492 lines
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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"
#include <stdlib.h>
#include "msvcrt.h"
#include "mtdll.h"
#include "winbase.h"
#include "winnls.h"
#include "winternl.h"
#include "wine/debug.h"
#include "wine/unicode.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 BOOL IsLeapYear(int Year)
{
return Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0);
}
static inline void write_invalid_msvcrt_tm( struct MSVCRT_tm *tm )
{
tm->tm_sec = -1;
tm->tm_min = -1;
tm->tm_hour = -1;
tm->tm_mday = -1;
tm->tm_mon = -1;
tm->tm_year = -1;
tm->tm_wday = -1;
tm->tm_yday = -1;
tm->tm_isdst = -1;
}
/*********************************************************************
* _daylight (MSVCRT.@)
*/
int MSVCRT___daylight = 1;
/*********************************************************************
* _timezone (MSVCRT.@)
*/
MSVCRT_long MSVCRT___timezone = 28800;
/*********************************************************************
* _dstbias (MSVCRT.@)
*/
int MSVCRT__dstbias = -3600;
/*********************************************************************
* _tzname (MSVCRT.@)
* NOTES
* Some apps (notably Mozilla) insist on writing to these, so the buffer
* must be large enough.
*/
static char tzname_std[64] = "PST";
static char tzname_dst[64] = "PDT";
char *MSVCRT__tzname[2] = { tzname_std, tzname_dst };
static TIME_ZONE_INFORMATION tzi = {0};
/*********************************************************************
* _tzset (MSVCRT.@)
*/
void CDECL MSVCRT__tzset(void)
{
char *tz = MSVCRT_getenv("TZ");
BOOL error;
_mlock(_TIME_LOCK);
if(tz && tz[0]) {
BOOL neg_zone = FALSE;
memset(&tzi, 0, sizeof(tzi));
/* Parse timezone information: tzn[+|-]hh[:mm[:ss]][dzn] */
lstrcpynA(MSVCRT__tzname[0], tz, 3);
tz += 3;
if(*tz == '-') {
neg_zone = TRUE;
tz++;
}else if(*tz == '+') {
tz++;
}
MSVCRT___timezone = strtol(tz, &tz, 10)*3600;
if(*tz == ':') {
MSVCRT___timezone += strtol(tz+1, &tz, 10)*60;
if(*tz == ':')
MSVCRT___timezone += strtol(tz+1, &tz, 10);
}
if(neg_zone)
MSVCRT___timezone = -MSVCRT___timezone;
MSVCRT___daylight = *tz;
lstrcpynA(MSVCRT__tzname[1], tz, 3);
}else if(GetTimeZoneInformation(&tzi) != TIME_ZONE_ID_INVALID) {
MSVCRT___timezone = tzi.Bias*60;
if(tzi.StandardDate.wMonth)
MSVCRT___timezone += tzi.StandardBias*60;
if(tzi.DaylightDate.wMonth) {
MSVCRT___daylight = 1;
MSVCRT__dstbias = (tzi.DaylightBias-tzi.StandardBias)*60;
}else {
MSVCRT___daylight = 0;
MSVCRT__dstbias = 0;
}
if(!WideCharToMultiByte(CP_ACP, 0, tzi.StandardName, -1, MSVCRT__tzname[0],
sizeof(tzname_std), NULL, &error) || error)
*MSVCRT__tzname[0] = 0;
if(!WideCharToMultiByte(CP_ACP, 0, tzi.DaylightName, -1, MSVCRT__tzname[1],
sizeof(tzname_dst), NULL, &error) || error)
*MSVCRT__tzname[0] = 0;
}
_munlock(_TIME_LOCK);
}
static void _tzset_init(void)
{
static BOOL init = FALSE;
if(!init) {
_mlock(_TIME_LOCK);
if(!init) {
MSVCRT__tzset();
init = TRUE;
}
_munlock(_TIME_LOCK);
}
}
static BOOL is_dst(const SYSTEMTIME *st)
{
TIME_ZONE_INFORMATION tmp;
SYSTEMTIME out;
if(!MSVCRT___daylight)
return FALSE;
if(tzi.DaylightDate.wMonth) {
tmp = tzi;
}else if(st->wYear >= 2007) {
memset(&tmp, 0, sizeof(tmp));
tmp.StandardDate.wMonth = 11;
tmp.StandardDate.wDay = 1;
tmp.StandardDate.wHour = 2;
tmp.DaylightDate.wMonth = 3;
tmp.DaylightDate.wDay = 2;
tmp.DaylightDate.wHour = 2;
}else {
memset(&tmp, 0, sizeof(tmp));
tmp.StandardDate.wMonth = 10;
tmp.StandardDate.wDay = 5;
tmp.StandardDate.wHour = 2;
tmp.DaylightDate.wMonth = 4;
tmp.DaylightDate.wDay = 1;
tmp.DaylightDate.wHour = 2;
}
tmp.Bias = 0;
tmp.StandardBias = 0;
tmp.DaylightBias = MSVCRT__dstbias/60;
if(!SystemTimeToTzSpecificLocalTime(&tmp, st, &out))
return FALSE;
return memcmp(st, &out, sizeof(SYSTEMTIME));
}
#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)
static MSVCRT___time64_t mktime_helper(struct MSVCRT_tm *mstm, BOOL local)
{
SYSTEMTIME st;
FILETIME ft;
MSVCRT___time64_t ret = 0;
int i;
BOOL use_dst = FALSE;
ret = mstm->tm_year + mstm->tm_mon/12;
mstm->tm_mon %= 12;
if(mstm->tm_mon < 0) {
mstm->tm_mon += 12;
ret--;
}
if(ret<70 || ret>1100) {
*MSVCRT__errno() = MSVCRT_EINVAL;
return -1;
}
memset(&st, 0, sizeof(SYSTEMTIME));
st.wDay = 1;
st.wMonth = mstm->tm_mon+1;
st.wYear = ret+1900;
if(!SystemTimeToFileTime(&st, &ft)) {
*MSVCRT__errno() = MSVCRT_EINVAL;
return -1;
}
ret = ((MSVCRT___time64_t)ft.dwHighDateTime<<32)+ft.dwLowDateTime;
ret += (MSVCRT___time64_t)mstm->tm_sec*TICKSPERSEC;
ret += (MSVCRT___time64_t)mstm->tm_min*60*TICKSPERSEC;
ret += (MSVCRT___time64_t)mstm->tm_hour*60*60*TICKSPERSEC;
ret += (MSVCRT___time64_t)(mstm->tm_mday-1)*SECSPERDAY*TICKSPERSEC;
ft.dwLowDateTime = ret & 0xffffffff;
ft.dwHighDateTime = ret >> 32;
FileTimeToSystemTime(&ft, &st);
if(local) {
_tzset_init();
use_dst = is_dst(&st);
if((mstm->tm_isdst<=-1 && use_dst) || (mstm->tm_isdst>=1)) {
SYSTEMTIME tmp;
ret += (MSVCRT___time64_t)MSVCRT__dstbias*TICKSPERSEC;
ft.dwLowDateTime = ret & 0xffffffff;
ft.dwHighDateTime = ret >> 32;
FileTimeToSystemTime(&ft, &tmp);
if(!is_dst(&tmp)) {
st = tmp;
use_dst = FALSE;
}else {
use_dst = TRUE;
}
}else if(mstm->tm_isdst==0 && use_dst) {
ret -= (MSVCRT___time64_t)MSVCRT__dstbias*TICKSPERSEC;
ft.dwLowDateTime = ret & 0xffffffff;
ft.dwHighDateTime = ret >> 32;
FileTimeToSystemTime(&ft, &st);
ret += (MSVCRT___time64_t)MSVCRT__dstbias*TICKSPERSEC;
}
ret += (MSVCRT___time64_t)MSVCRT___timezone*TICKSPERSEC;
}
mstm->tm_sec = st.wSecond;
mstm->tm_min = st.wMinute;
mstm->tm_hour = st.wHour;
mstm->tm_mday = st.wDay;
mstm->tm_mon = st.wMonth-1;
mstm->tm_year = st.wYear-1900;
mstm->tm_wday = st.wDayOfWeek;
for(i=mstm->tm_yday=0; i<st.wMonth-1; i++)
mstm->tm_yday += MonthLengths[IsLeapYear(st.wYear)][i];
mstm->tm_yday += st.wDay-1;
mstm->tm_isdst = use_dst ? 1 : 0;
if(ret < TICKS_1601_TO_1970) {
*MSVCRT__errno() = MSVCRT_EINVAL;
return -1;
}
ret = (ret-TICKS_1601_TO_1970)/TICKSPERSEC;
return ret;
}
/**********************************************************************
* _mktime64 (MSVCRT.@)
*/
MSVCRT___time64_t CDECL MSVCRT__mktime64(struct MSVCRT_tm *mstm)
{
return mktime_helper(mstm, TRUE);
}
/**********************************************************************
* _mktime32 (MSVCRT.@)
*/
MSVCRT___time32_t CDECL MSVCRT__mktime32(struct MSVCRT_tm *mstm)
{
MSVCRT___time64_t ret = MSVCRT__mktime64( mstm );
return ret == (MSVCRT___time32_t)ret ? ret : -1;
}
/**********************************************************************
* 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)
{
return mktime_helper(time, FALSE);
}
/**********************************************************************
* _mkgmtime32 (MSVCRT.@)
*/
MSVCRT___time32_t CDECL MSVCRT__mkgmtime32(struct MSVCRT_tm *time)
{
MSVCRT___time64_t ret = MSVCRT__mkgmtime64(time);
return ret == (MSVCRT___time32_t)ret ? ret : -1;
}
/**********************************************************************
* _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_s (MSVCRT.@)
*/
int CDECL _localtime64_s(struct MSVCRT_tm *res, const MSVCRT___time64_t *secs)
{
int i;
FILETIME ft;
SYSTEMTIME st;
ULONGLONG time;
if (!res || !secs || *secs < 0 || *secs > _MAX__TIME64_T)
{
if (res)
write_invalid_msvcrt_tm(res);
*MSVCRT__errno() = MSVCRT_EINVAL;
return MSVCRT_EINVAL;
}
_tzset_init();
time = (*secs - MSVCRT___timezone) * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1970;
ft.dwHighDateTime = (UINT)(time >> 32);
ft.dwLowDateTime = (UINT)time;
FileTimeToSystemTime(&ft, &st);
res->tm_isdst = is_dst(&st) ? 1 : 0;
if(res->tm_isdst) {
time -= MSVCRT__dstbias * (ULONGLONG)TICKSPERSEC;
ft.dwHighDateTime = (UINT)(time >> 32);
ft.dwLowDateTime = (UINT)time;
FileTimeToSystemTime(&ft, &st);
}
res->tm_sec = st.wSecond;
res->tm_min = st.wMinute;
res->tm_hour = st.wHour;
res->tm_mday = st.wDay;
res->tm_year = st.wYear - 1900;
res->tm_mon = st.wMonth - 1;
res->tm_wday = st.wDayOfWeek;
for (i = res->tm_yday = 0; i < st.wMonth - 1; i++)
res->tm_yday += MonthLengths[IsLeapYear(st.wYear)][i];
res->tm_yday += st.wDay - 1;
return 0;
}
/*********************************************************************
* _localtime64 (MSVCRT.@)
*/
struct MSVCRT_tm* CDECL MSVCRT__localtime64(const MSVCRT___time64_t* secs)
{
thread_data_t *data = msvcrt_get_thread_data();
if(!data->time_buffer)
data->time_buffer = MSVCRT_malloc(sizeof(struct MSVCRT_tm));
if(_localtime64_s(data->time_buffer, secs))
return NULL;
return data->time_buffer;
}
/*********************************************************************
* _localtime32 (MSVCRT.@)
*/
struct MSVCRT_tm* CDECL MSVCRT__localtime32(const MSVCRT___time32_t* secs)
{
MSVCRT___time64_t secs64;
if(!secs)
return NULL;
secs64 = *secs;
return MSVCRT__localtime64( &secs64 );
}
/*********************************************************************
* _localtime32_s (MSVCRT.@)
*/
int CDECL _localtime32_s(struct MSVCRT_tm *time, const MSVCRT___time32_t *secs)
{
MSVCRT___time64_t secs64;
if (!time || !secs || *secs < 0)
{
if (time)
write_invalid_msvcrt_tm(time);
*MSVCRT__errno() = MSVCRT_EINVAL;
return MSVCRT_EINVAL;
}
secs64 = *secs;
return _localtime64_s(time, &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.@)
*/
int CDECL MSVCRT__gmtime64_s(struct MSVCRT_tm *res, const MSVCRT___time64_t *secs)
{
int i;
FILETIME ft;
SYSTEMTIME st;
ULONGLONG time;
if (!res || !secs || *secs < 0 || *secs > _MAX__TIME64_T) {
if (res) {
write_invalid_msvcrt_tm(res);
}
*MSVCRT__errno() = MSVCRT_EINVAL;
return MSVCRT_EINVAL;
}
time = *secs * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1970;
ft.dwHighDateTime = (UINT)(time >> 32);
ft.dwLowDateTime = (UINT)time;
FileTimeToSystemTime(&ft, &st);
res->tm_sec = st.wSecond;
res->tm_min = st.wMinute;
res->tm_hour = st.wHour;
res->tm_mday = st.wDay;
res->tm_year = st.wYear - 1900;
res->tm_mon = st.wMonth - 1;
res->tm_wday = st.wDayOfWeek;
for (i = res->tm_yday = 0; i < st.wMonth - 1; i++) {
res->tm_yday += MonthLengths[IsLeapYear(st.wYear)][i];
}
res->tm_yday += st.wDay - 1;
res->tm_isdst = 0;
return 0;
}
/*********************************************************************
* _gmtime64 (MSVCRT.@)
*/
struct MSVCRT_tm* CDECL MSVCRT__gmtime64(const MSVCRT___time64_t *secs)
{
thread_data_t * const data = msvcrt_get_thread_data();
if(!data->time_buffer)
data->time_buffer = MSVCRT_malloc(sizeof(struct MSVCRT_tm));
if(MSVCRT__gmtime64_s(data->time_buffer, secs))
return NULL;
return data->time_buffer;
}
/*********************************************************************
* _gmtime32_s (MSVCRT.@)
*/
int CDECL MSVCRT__gmtime32_s(struct MSVCRT_tm *res, const MSVCRT___time32_t *secs)
{
MSVCRT___time64_t secs64;
if(secs) {
secs64 = *secs;
return MSVCRT__gmtime64_s(res, &secs64);
}
return MSVCRT__gmtime64_s(res, NULL);
}
/*********************************************************************
* _gmtime32 (MSVCRT.@)
*/
struct MSVCRT_tm* CDECL MSVCRT__gmtime32(const MSVCRT___time32_t* secs)
{
MSVCRT___time64_t secs64;
if(!secs)
return NULL;
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 MSVCRT__strdate(char* date)
{
static const char format[] = "MM'/'dd'/'yy";
GetDateFormatA(LOCALE_NEUTRAL, 0, NULL, format, date, 9);
return date;
}
/**********************************************************************
* _strdate_s (MSVCRT.@)
*/
int CDECL _strdate_s(char* date, MSVCRT_size_t size)
{
if(date && size)
date[0] = '\0';
if(!date) {
*MSVCRT__errno() = MSVCRT_EINVAL;
return MSVCRT_EINVAL;
}
if(size < 9) {
*MSVCRT__errno() = MSVCRT_ERANGE;
return MSVCRT_ERANGE;
}
MSVCRT__strdate(date);
return 0;
}
/**********************************************************************
* _wstrdate (MSVCRT.@)
*/
MSVCRT_wchar_t* CDECL MSVCRT__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;
}
/**********************************************************************
* _wstrdate_s (MSVCRT.@)
*/
int CDECL _wstrdate_s(MSVCRT_wchar_t* date, MSVCRT_size_t size)
{
if(date && size)
date[0] = '\0';
if(!date) {
*MSVCRT__errno() = MSVCRT_EINVAL;
return MSVCRT_EINVAL;
}
if(size < 9) {
*MSVCRT__errno() = MSVCRT_ERANGE;
return MSVCRT_ERANGE;
}
MSVCRT__wstrdate(date);
return 0;
}
/*********************************************************************
* _strtime (MSVCRT.@)
*/
char* CDECL MSVCRT__strtime(char* time)
{
static const char format[] = "HH':'mm':'ss";
GetTimeFormatA(LOCALE_NEUTRAL, 0, NULL, format, time, 9);
return time;
}
/*********************************************************************
* _strtime_s (MSVCRT.@)
*/
int CDECL _strtime_s(char* time, MSVCRT_size_t size)
{
if(time && size)
time[0] = '\0';
if(!time) {
*MSVCRT__errno() = MSVCRT_EINVAL;
return MSVCRT_EINVAL;
}
if(size < 9) {
*MSVCRT__errno() = MSVCRT_ERANGE;
return MSVCRT_ERANGE;
}
MSVCRT__strtime(time);
return 0;
}
/*********************************************************************
* _wstrtime (MSVCRT.@)
*/
MSVCRT_wchar_t* CDECL MSVCRT__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;
}
/*********************************************************************
* _wstrtime_s (MSVCRT.@)
*/
int CDECL _wstrtime_s(MSVCRT_wchar_t* time, MSVCRT_size_t size)
{
if(time && size)
time[0] = '\0';
if(!time) {
*MSVCRT__errno() = MSVCRT_EINVAL;
return MSVCRT_EINVAL;
}
if(size < 9) {
*MSVCRT__errno() = MSVCRT_ERANGE;
return MSVCRT_ERANGE;
}
MSVCRT__wstrtime(time);
return 0;
}
/*********************************************************************
* clock (MSVCRT.@)
*/
MSVCRT_clock_t CDECL MSVCRT_clock(void)
{
static LONGLONG start_time;
LARGE_INTEGER systime;
if(!start_time) {
KERNEL_USER_TIMES pti;
/* while Linux's clock returns user time, Windows' clock
* returns wall-clock time from process start. cache the
* process start time since it won't change and to avoid
* wineserver round-trip overhead */
if(NtQueryInformationProcess(GetCurrentProcess(), ProcessTimes, &pti, sizeof(pti), NULL))
return -1;
start_time = pti.CreateTime.QuadPart;
}
NtQuerySystemTime(&systime);
return (systime.QuadPart - start_time) * MSVCRT_CLOCKS_PER_SEC / TICKSPERSEC;
}
/*********************************************************************
* _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);
}
/*********************************************************************
* _ftime64_s (MSVCRT.@)
*/
int CDECL MSVCRT__ftime64_s(struct MSVCRT___timeb64 *buf)
{
if (!MSVCRT_CHECK_PMT( buf != NULL )) return MSVCRT_EINVAL;
MSVCRT__ftime64(buf);
return 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;
}
/*********************************************************************
* _ftime32_s (MSVCRT.@)
*/
int CDECL MSVCRT__ftime32_s(struct MSVCRT___timeb32 *buf)
{
if (!MSVCRT_CHECK_PMT( buf != NULL )) return MSVCRT_EINVAL;
MSVCRT__ftime32(buf);
return 0;
}
/*********************************************************************
* _ftime (MSVCRT.@)
*/
#ifdef _WIN64
void CDECL MSVCRT__ftime(struct MSVCRT___timeb64 *buf)
{
MSVCRT__ftime64( buf );
}
#else
void CDECL MSVCRT__ftime(struct MSVCRT___timeb32 *buf)
{
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
/*********************************************************************
* __p__daylight (MSVCRT.@)
*/
int * CDECL MSVCRT___p__daylight(void)
{
return &MSVCRT___daylight;
}
/*********************************************************************
* __p__dstbias (MSVCRT.@)
*/
int * CDECL MSVCRT___p__dstbias(void)
{
return &MSVCRT__dstbias;
}
/*********************************************************************
* __p__timezone (MSVCRT.@)
*/
MSVCRT_long * CDECL MSVCRT___p__timezone(void)
{
return &MSVCRT___timezone;
}
/*********************************************************************
* _get_tzname (MSVCRT.@)
*/
int CDECL MSVCRT__get_tzname(MSVCRT_size_t *ret, char *buf, MSVCRT_size_t bufsize, int index)
{
char *timezone;
switch(index)
{
case 0:
timezone = tzname_std;
break;
case 1:
timezone = tzname_dst;
break;
default:
*MSVCRT__errno() = MSVCRT_EINVAL;
return MSVCRT_EINVAL;
}
if(!ret || (!buf && bufsize > 0) || (buf && !bufsize))
{
*MSVCRT__errno() = MSVCRT_EINVAL;
return MSVCRT_EINVAL;
}
*ret = strlen(timezone)+1;
if(!buf && !bufsize)
return 0;
strcpy(buf, timezone);
return 0;
}
/*********************************************************************
* __p_tzname (MSVCRT.@)
*/
char ** CDECL __p__tzname(void)
{
return MSVCRT__tzname;
}
static inline BOOL strftime_date(char *str, MSVCRT_size_t *pos, MSVCRT_size_t max,
BOOL alternate, const struct MSVCRT_tm *mstm, MSVCRT___lc_time_data *time_data)
{
char *format;
SYSTEMTIME st;
MSVCRT_size_t ret;
st.wYear = mstm->tm_year + 1900;
st.wMonth = mstm->tm_mon + 1;
st.wDayOfWeek = mstm->tm_wday;
st.wDay = mstm->tm_mday;
st.wHour = mstm->tm_hour;
st.wMinute = mstm->tm_min;
st.wSecond = mstm->tm_sec;
st.wMilliseconds = 0;
format = alternate ? time_data->str.names.date : time_data->str.names.short_date;
ret = GetDateFormatA(time_data->lcid, 0, &st, format, NULL, 0);
if(ret && ret<max-*pos)
ret = GetDateFormatA(time_data->lcid, 0, &st, format, str+*pos, max-*pos);
if(!ret) {
*str = 0;
*MSVCRT__errno() = MSVCRT_EINVAL;
return FALSE;
}else if(ret > max-*pos) {
*str = 0;
*MSVCRT__errno() = MSVCRT_ERANGE;
return FALSE;
}
*pos += ret-1;
return TRUE;
}
static inline BOOL strftime_time(char *str, MSVCRT_size_t *pos, MSVCRT_size_t max,
const struct MSVCRT_tm *mstm, MSVCRT___lc_time_data *time_data)
{
SYSTEMTIME st;
MSVCRT_size_t ret;
st.wYear = mstm->tm_year + 1900;
st.wMonth = mstm->tm_mon + 1;
st.wDayOfWeek = mstm->tm_wday;
st.wDay = mstm->tm_mday;
st.wHour = mstm->tm_hour;
st.wMinute = mstm->tm_min;
st.wSecond = mstm->tm_sec;
st.wMilliseconds = 0;
ret = GetTimeFormatA(time_data->lcid, 0, &st, time_data->str.names.time, NULL, 0);
if(ret && ret<max-*pos)
ret = GetTimeFormatA(time_data->lcid, 0, &st, time_data->str.names.time,
str+*pos, max-*pos);
if(!ret) {
*str = 0;
*MSVCRT__errno() = MSVCRT_EINVAL;
return FALSE;
}else if(ret > max-*pos) {
*str = 0;
*MSVCRT__errno() = MSVCRT_ERANGE;
return FALSE;
}
*pos += ret-1;
return TRUE;
}
static inline BOOL strftime_str(char *str, MSVCRT_size_t *pos, MSVCRT_size_t max, char *src)
{
MSVCRT_size_t len = strlen(src);
if(len > max-*pos) {
*str = 0;
*MSVCRT__errno() = MSVCRT_ERANGE;
return FALSE;
}
memcpy(str+*pos, src, len);
*pos += len;
return TRUE;
}
static inline BOOL strftime_int(char *str, MSVCRT_size_t *pos, MSVCRT_size_t max,
int src, int prec, int l, int h)
{
MSVCRT_size_t len;
if(src<l || src>h) {
*str = 0;
*MSVCRT__errno() = MSVCRT_EINVAL;
return FALSE;
}
len = MSVCRT__snprintf(str+*pos, max-*pos, "%0*d", prec, src);
if(len == -1) {
*str = 0;
*MSVCRT__errno() = MSVCRT_ERANGE;
return FALSE;
}
*pos += len;
return TRUE;
}
/*********************************************************************
* _Strftime (MSVCRT.@)
*/
MSVCRT_size_t CDECL _Strftime(char *str, MSVCRT_size_t max, const char *format,
const struct MSVCRT_tm *mstm, MSVCRT___lc_time_data *time_data)
{
MSVCRT_size_t ret, tmp;
BOOL alternate;
TRACE("(%p %ld %s %p %p)\n", str, max, format, mstm, time_data);
if(!str || !format) {
if(str && max)
*str = 0;
*MSVCRT__errno() = MSVCRT_EINVAL;
return 0;
}
if(!time_data)
time_data = get_locinfo()->lc_time_curr;
for(ret=0; *format && ret<max; format++) {
if(*format != '%') {
str[ret++] = *format;
continue;
}
format++;
if(*format == '#') {
alternate = TRUE;
format++;
}else {
alternate = FALSE;
}
if(!mstm)
goto einval_error;
switch(*format) {
case 'c':
if(!strftime_date(str, &ret, max, alternate, mstm, time_data))
return 0;
if(ret < max)
str[ret++] = ' ';
if(!strftime_time(str, &ret, max, mstm, time_data))
return 0;
break;
case 'x':
if(!strftime_date(str, &ret, max, alternate, mstm, time_data))
return 0;
break;
case 'X':
if(!strftime_time(str, &ret, max, mstm, time_data))
return 0;
break;
case 'a':
if(mstm->tm_wday<0 || mstm->tm_wday>6)
goto einval_error;
if(!strftime_str(str, &ret, max, time_data->str.names.short_wday[mstm->tm_wday]))
return 0;
break;
case 'A':
if(mstm->tm_wday<0 || mstm->tm_wday>6)
goto einval_error;
if(!strftime_str(str, &ret, max, time_data->str.names.wday[mstm->tm_wday]))
return 0;
break;
case 'b':
if(mstm->tm_mon<0 || mstm->tm_mon>11)
goto einval_error;
if(!strftime_str(str, &ret, max, time_data->str.names.short_mon[mstm->tm_mon]))
return 0;
break;
case 'B':
if(mstm->tm_mon<0 || mstm->tm_mon>11)
goto einval_error;
if(!strftime_str(str, &ret, max, time_data->str.names.mon[mstm->tm_mon]))
return 0;
break;
case 'd':
if(!strftime_int(str, &ret, max, mstm->tm_mday, alternate ? 0 : 2, 0, 31))
return 0;
break;
case 'H':
if(!strftime_int(str, &ret, max, mstm->tm_hour, alternate ? 0 : 2, 0, 23))
return 0;
break;
case 'I':
tmp = mstm->tm_hour;
if(tmp > 12)
tmp -= 12;
else if(!tmp)
tmp = 12;
if(!strftime_int(str, &ret, max, tmp, alternate ? 0 : 2, 1, 12))
return 0;
break;
case 'j':
if(!strftime_int(str, &ret, max, mstm->tm_yday+1, alternate ? 0 : 3, 1, 366))
return 0;
break;
case 'm':
if(!strftime_int(str, &ret, max, mstm->tm_mon+1, alternate ? 0 : 2, 1, 12))
return 0;
break;
case 'M':
if(!strftime_int(str, &ret, max, mstm->tm_min, alternate ? 0 : 2, 0, 59))
return 0;
break;
case 'p':
if(mstm->tm_hour<0 || mstm->tm_hour>23)
goto einval_error;
if(!strftime_str(str, &ret, max, mstm->tm_hour<12 ?
time_data->str.names.am : time_data->str.names.pm))
return 0;
break;
case 'S':
if(!strftime_int(str, &ret, max, mstm->tm_sec, alternate ? 0 : 2, 0, 59))
return 0;
break;
case 'w':
if(!strftime_int(str, &ret, max, mstm->tm_wday, 0, 0, 6))
return 0;
break;
case 'y':
if(!strftime_int(str, &ret, max, mstm->tm_year%100, alternate ? 0 : 2, 0, 99))
return 0;
break;
case 'Y':
tmp = 1900+mstm->tm_year;
if(!strftime_int(str, &ret, max, tmp, alternate ? 0 : 4, 0, 9999))
return 0;
break;
case 'z':
case 'Z':
MSVCRT__tzset();
if(MSVCRT__get_tzname(&tmp, str+ret, max-ret, mstm->tm_isdst ? 1 : 0))
return 0;
ret += tmp;
break;
case 'U':
case 'W':
if(mstm->tm_wday<0 || mstm->tm_wday>6 || mstm->tm_yday<0 || mstm->tm_yday>365)
goto einval_error;
if(*format == 'U')
tmp = mstm->tm_wday;
else if(!mstm->tm_wday)
tmp = 6;
else
tmp = mstm->tm_wday-1;
tmp = mstm->tm_yday/7 + (tmp<=mstm->tm_yday%7);
if(!strftime_int(str, &ret, max, tmp, alternate ? 0 : 2, 0, 53))
return 0;
break;
case '%':
str[ret++] = '%';
break;
default:
WARN("unknown format %c\n", *format);
goto einval_error;
}
}
if(ret == max) {
if(max)
*str = 0;
*MSVCRT__errno() = MSVCRT_ERANGE;
return 0;
}
str[ret] = 0;
return ret;
einval_error:
*str = 0;
*MSVCRT__errno() = MSVCRT_EINVAL;
return 0;
}
/*********************************************************************
* strftime (MSVCRT.@)
*/
MSVCRT_size_t CDECL MSVCRT_strftime( char *str, MSVCRT_size_t max, const char *format,
const struct MSVCRT_tm *mstm )
{
return _Strftime(str, max, format, mstm, NULL);
}
/*********************************************************************
* 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 )))
{
if (!MSVCRT_strftime( s, max*4, fmt, mstm )) 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;
}
static char* asctime_buf(char *buf, const struct MSVCRT_tm *mstm)
{
static const char wday[7][4] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
static const char month[12][4] = {"Jan", "Feb", "Mar", "Apr", "May",
"Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
if (!mstm || mstm->tm_sec<0 || mstm->tm_sec>59
|| mstm->tm_min<0 || mstm->tm_min>59
|| mstm->tm_hour<0 || mstm->tm_hour>23
|| mstm->tm_mon<0 || mstm->tm_mon>11
|| mstm->tm_wday<0 || mstm->tm_wday>6
|| mstm->tm_year<0 || mstm->tm_mday<0
|| mstm->tm_mday>MonthLengths[IsLeapYear(1900+mstm->tm_year)][mstm->tm_mon]) {
*MSVCRT__errno() = MSVCRT_EINVAL;
return NULL;
}
MSVCRT__snprintf(buf, 26, "%s %s %02d %02d:%02d:%02d %c%03d\n", wday[mstm->tm_wday],
month[mstm->tm_mon], mstm->tm_mday, mstm->tm_hour, mstm->tm_min,
mstm->tm_sec, '1'+(mstm->tm_year+900)/1000, (900+mstm->tm_year)%1000);
return buf;
}
/*********************************************************************
* asctime (MSVCRT.@)
*/
char * CDECL MSVCRT_asctime(const struct MSVCRT_tm *mstm)
{
thread_data_t *data = msvcrt_get_thread_data();
/* asctime returns date in format that always has exactly 26 characters */
if (!data->asctime_buffer) {
data->asctime_buffer = MSVCRT_malloc(26);
if (!data->asctime_buffer) {
*MSVCRT__errno() = MSVCRT_ENOMEM;
return NULL;
}
}
return asctime_buf(data->asctime_buffer, mstm);
}
/*********************************************************************
* asctime_s (MSVCRT.@)
*/
int CDECL MSVCRT_asctime_s(char* time, MSVCRT_size_t size, const struct MSVCRT_tm *mstm)
{
if (!MSVCRT_CHECK_PMT(time != NULL)) return MSVCRT_EINVAL;
if (size) time[0] = 0;
if (!MSVCRT_CHECK_PMT(size >= 26)) return MSVCRT_EINVAL;
if (!MSVCRT_CHECK_PMT(mstm != NULL)) return MSVCRT_EINVAL;
if (!MSVCRT_CHECK_PMT(mstm->tm_sec >= 0 && mstm->tm_sec < 60)) return MSVCRT_EINVAL;
if (!MSVCRT_CHECK_PMT(mstm->tm_min >= 0 && mstm->tm_min < 60)) return MSVCRT_EINVAL;
if (!MSVCRT_CHECK_PMT(mstm->tm_hour >= 0 && mstm->tm_hour < 24)) return MSVCRT_EINVAL;
if (!MSVCRT_CHECK_PMT(mstm->tm_mon >= 0 && mstm->tm_mon < 12)) return MSVCRT_EINVAL;
if (!MSVCRT_CHECK_PMT(mstm->tm_wday >= 0 && mstm->tm_wday < 7)) return MSVCRT_EINVAL;
if (!MSVCRT_CHECK_PMT(mstm->tm_year >= 0)) return MSVCRT_EINVAL;
if (!MSVCRT_CHECK_PMT(mstm->tm_mday >= 0)) return MSVCRT_EINVAL;
if (!MSVCRT_CHECK_PMT(mstm->tm_mday <= MonthLengths[IsLeapYear(1900+mstm->tm_year)][mstm->tm_mon])) return MSVCRT_EINVAL;
asctime_buf(time, mstm);
return 0;
}
/*********************************************************************
* _wasctime (MSVCRT.@)
*/
MSVCRT_wchar_t * CDECL MSVCRT__wasctime(const struct MSVCRT_tm *mstm)
{
thread_data_t *data = msvcrt_get_thread_data();
char buffer[26];
if(!data->wasctime_buffer) {
data->wasctime_buffer = MSVCRT_malloc(26*sizeof(MSVCRT_wchar_t));
if(!data->wasctime_buffer) {
*MSVCRT__errno() = MSVCRT_ENOMEM;
return NULL;
}
}
if(!asctime_buf(buffer, mstm))
return NULL;
MultiByteToWideChar(CP_ACP, 0, buffer, -1, data->wasctime_buffer, 26);
return data->wasctime_buffer;
}
/*********************************************************************
* _wasctime_s (MSVCRT.@)
*/
int CDECL MSVCRT__wasctime_s(MSVCRT_wchar_t* time, MSVCRT_size_t size, const struct MSVCRT_tm *mstm)
{
char buffer[26];
int ret;
if (!MSVCRT_CHECK_PMT(time != NULL)) return MSVCRT_EINVAL;
if (size) time[0] = 0;
if (!MSVCRT_CHECK_PMT(size >= 26)) return MSVCRT_EINVAL;
if (!MSVCRT_CHECK_PMT(mstm != NULL)) return MSVCRT_EINVAL;
ret = MSVCRT_asctime_s(buffer, sizeof(buffer), mstm);
if(!ret)
return ret;
MultiByteToWideChar(CP_ACP, 0, buffer, -1, time, size);
return 0;
}
/*********************************************************************
* _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 );
}
/*********************************************************************
* _ctime64_s (MSVCRT.@)
*/
int CDECL MSVCRT__ctime64_s(char *res, MSVCRT_size_t len, const MSVCRT___time64_t *time)
{
struct MSVCRT_tm *t;
if (!MSVCRT_CHECK_PMT( res != NULL )) return MSVCRT_EINVAL;
if (!MSVCRT_CHECK_PMT( len >= 26 )) return MSVCRT_EINVAL;
res[0] = '\0';
if (!MSVCRT_CHECK_PMT( time != NULL )) return MSVCRT_EINVAL;
if (!MSVCRT_CHECK_PMT( *time > 0 )) return MSVCRT_EINVAL;
t = MSVCRT__localtime64( time );
strcpy( res, MSVCRT_asctime( t ) );
return 0;
}
/*********************************************************************
* _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 );
}
/*********************************************************************
* _ctime32_s (MSVCRT.@)
*/
int CDECL MSVCRT__ctime32_s(char *res, MSVCRT_size_t len, const MSVCRT___time32_t *time)
{
struct MSVCRT_tm *t;
if (!MSVCRT_CHECK_PMT( res != NULL )) return MSVCRT_EINVAL;
if (!MSVCRT_CHECK_PMT( len >= 26 )) return MSVCRT_EINVAL;
res[0] = '\0';
if (!MSVCRT_CHECK_PMT( time != NULL )) return MSVCRT_EINVAL;
if (!MSVCRT_CHECK_PMT( *time > 0 )) return MSVCRT_EINVAL;
t = MSVCRT__localtime32( time );
strcpy( res, MSVCRT_asctime( t ) );
return 0;
}
/*********************************************************************
* 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
/*********************************************************************
* _get_timezone (MSVCR100.@)
*/
int CDECL _get_timezone(LONG *timezone)
{
if(!MSVCRT_CHECK_PMT(timezone != NULL)) return MSVCRT_EINVAL;
*timezone = MSVCRT___timezone;
return 0;
}
/*********************************************************************
* _get_daylight (MSVCR100.@)
*/
int CDECL _get_daylight(int *hours)
{
if(!MSVCRT_CHECK_PMT(hours != NULL)) return MSVCRT_EINVAL;
*hours = MSVCRT___daylight;
return 0;
}
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