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wine/dlls/msvcrt/time.c

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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 <locale.h>
#include <stdlib.h>
#include <time.h>
#include <sys/timeb.h>
#include "msvcrt.h"
#include "mtdll.h"
#include "winbase.h"
#include "winnls.h"
#include "winternl.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
#undef _ctime32
#undef _difftime32
#undef _gmtime32
#undef _localtime32
#undef _mktime32
#undef _time32
#undef _wctime32
static LONGLONG init_time;
void msvcrt_init_clock(void)
{
LARGE_INTEGER systime;
NtQuerySystemTime(&systime);
init_time = systime.QuadPart;
}
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 }
};
#if _MSVCR_VER>=140
static const int MAX_SECONDS = 60;
#else
static const int MAX_SECONDS = 59;
#endif
static inline BOOL IsLeapYear(int Year)
{
return Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0);
}
static inline void write_invalid_msvcrt_tm( struct 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.@)
*/
__msvcrt_long 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 _tzset(void)
{
char *tz = getenv("TZ");
BOOL error;
_lock(_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;
}
_unlock(_TIME_LOCK);
}
static void _tzset_init(void)
{
static BOOL init = FALSE;
if(!init) {
_lock(_TIME_LOCK);
if(!init) {
_tzset();
init = TRUE;
}
_unlock(_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 __time64_t mktime_helper(struct tm *mstm, BOOL local)
{
SYSTEMTIME st;
FILETIME ft;
__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) {
*_errno() = 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)) {
*_errno() = EINVAL;
return -1;
}
ret = ((__time64_t)ft.dwHighDateTime<<32)+ft.dwLowDateTime;
ret += (__time64_t)mstm->tm_sec*TICKSPERSEC;
ret += (__time64_t)mstm->tm_min*60*TICKSPERSEC;
ret += (__time64_t)mstm->tm_hour*60*60*TICKSPERSEC;
ret += (__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 += (__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 -= (__time64_t)MSVCRT__dstbias*TICKSPERSEC;
ft.dwLowDateTime = ret & 0xffffffff;
ft.dwHighDateTime = ret >> 32;
FileTimeToSystemTime(&ft, &st);
ret += (__time64_t)MSVCRT__dstbias*TICKSPERSEC;
}
ret += (__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) {
*_errno() = EINVAL;
return -1;
}
ret = (ret-TICKS_1601_TO_1970)/TICKSPERSEC;
return ret;
}
/**********************************************************************
* _mktime64 (MSVCRT.@)
*/
__time64_t CDECL _mktime64(struct tm *mstm)
{
return mktime_helper(mstm, TRUE);
}
/**********************************************************************
* _mktime32 (MSVCRT.@)
*/
__time32_t CDECL _mktime32(struct tm *mstm)
{
__time64_t ret = _mktime64( mstm );
return ret == (__time32_t)ret ? ret : -1;
}
/**********************************************************************
* _mkgmtime64 (MSVCRT.@)
*
* time->tm_isdst value is ignored
*/
__time64_t CDECL _mkgmtime64(struct tm *time)
{
return mktime_helper(time, FALSE);
}
/**********************************************************************
* _mkgmtime32 (MSVCRT.@)
*/
__time32_t CDECL _mkgmtime32(struct tm *time)
{
__time64_t ret = _mkgmtime64(time);
return ret == (__time32_t)ret ? ret : -1;
}
/*********************************************************************
* _localtime64_s (MSVCRT.@)
*/
int CDECL _localtime64_s(struct tm *res, const __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);
*_errno() = EINVAL;
return 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 tm* CDECL _localtime64(const __time64_t* secs)
{
thread_data_t *data = msvcrt_get_thread_data();
if(!data->time_buffer)
data->time_buffer = malloc(sizeof(struct tm));
if(_localtime64_s(data->time_buffer, secs))
return NULL;
return data->time_buffer;
}
/*********************************************************************
* _localtime32 (MSVCRT.@)
*/
struct tm* CDECL _localtime32(const __time32_t* secs)
{
__time64_t secs64;
if(!secs)
return NULL;
secs64 = *secs;
return _localtime64( &secs64 );
}
/*********************************************************************
* _localtime32_s (MSVCRT.@)
*/
int CDECL _localtime32_s(struct tm *time, const __time32_t *secs)
{
__time64_t secs64;
if (!time || !secs || *secs < 0)
{
if (time)
write_invalid_msvcrt_tm(time);
*_errno() = EINVAL;
return EINVAL;
}
secs64 = *secs;
return _localtime64_s(time, &secs64);
}
/*********************************************************************
* _gmtime64 (MSVCRT.@)
*/
int CDECL _gmtime64_s(struct tm *res, const __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);
}
*_errno() = EINVAL;
return 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 tm* CDECL _gmtime64(const __time64_t *secs)
{
thread_data_t * const data = msvcrt_get_thread_data();
if(!data->time_buffer)
data->time_buffer = malloc(sizeof(struct tm));
if(_gmtime64_s(data->time_buffer, secs))
return NULL;
return data->time_buffer;
}
/*********************************************************************
* _gmtime32_s (MSVCRT.@)
*/
int CDECL _gmtime32_s(struct tm *res, const __time32_t *secs)
{
__time64_t secs64;
if(secs) {
secs64 = *secs;
return _gmtime64_s(res, &secs64);
}
return _gmtime64_s(res, NULL);
}
/*********************************************************************
* _gmtime32 (MSVCRT.@)
*/
struct tm* CDECL _gmtime32(const __time32_t* secs)
{
__time64_t secs64;
if(!secs)
return NULL;
secs64 = *secs;
return _gmtime64( &secs64 );
}
/**********************************************************************
* _strdate (MSVCRT.@)
*/
char* CDECL _strdate(char* date)
{
SYSTEMTIME st;
GetLocalTime(&st);
date[0] = '0' + st.wMonth / 10;
date[1] = '0' + st.wMonth % 10;
date[2] = '/';
date[3] = '0' + st.wDay / 10;
date[4] = '0' + st.wDay % 10;
date[5] = '/';
date[6] = '0' + st.wYear / 10 % 10;
date[7] = '0' + st.wYear % 10;
date[8] = 0;
return date;
}
/**********************************************************************
* _strdate_s (MSVCRT.@)
*/
int CDECL _strdate_s(char* date, size_t size)
{
if(date && size)
date[0] = '\0';
if(!date) {
*_errno() = EINVAL;
return EINVAL;
}
if(size < 9) {
*_errno() = ERANGE;
return ERANGE;
}
_strdate(date);
return 0;
}
/**********************************************************************
* _wstrdate (MSVCRT.@)
*/
wchar_t* CDECL _wstrdate(wchar_t* date)
{
GetDateFormatW(LOCALE_NEUTRAL, 0, NULL, L"MM'/'dd'/'yy", date, 9);
return date;
}
/**********************************************************************
* _wstrdate_s (MSVCRT.@)
*/
int CDECL _wstrdate_s(wchar_t* date, size_t size)
{
if(date && size)
date[0] = '\0';
if(!date) {
*_errno() = EINVAL;
return EINVAL;
}
if(size < 9) {
*_errno() = ERANGE;
return ERANGE;
}
_wstrdate(date);
return 0;
}
/*********************************************************************
* _strtime (MSVCRT.@)
*/
char* CDECL _strtime(char* time)
{
SYSTEMTIME st;
GetLocalTime(&st);
time[0] = '0' + st.wHour / 10;
time[1] = '0' + st.wHour % 10;
time[2] = ':';
time[3] = '0' + st.wMinute / 10;
time[4] = '0' + st.wMinute % 10;
time[5] = ':';
time[6] = '0' + st.wSecond / 10;
time[7] = '0' + st.wSecond % 10;
time[8] = 0;
return time;
}
/*********************************************************************
* _strtime_s (MSVCRT.@)
*/
int CDECL _strtime_s(char* time, size_t size)
{
if(time && size)
time[0] = '\0';
if(!time) {
*_errno() = EINVAL;
return EINVAL;
}
if(size < 9) {
*_errno() = ERANGE;
return ERANGE;
}
_strtime(time);
return 0;
}
/*********************************************************************
* _wstrtime (MSVCRT.@)
*/
wchar_t* CDECL _wstrtime(wchar_t* time)
{
GetTimeFormatW(LOCALE_NEUTRAL, 0, NULL, L"HH':'mm':'ss", time, 9);
return time;
}
/*********************************************************************
* _wstrtime_s (MSVCRT.@)
*/
int CDECL _wstrtime_s(wchar_t* time, size_t size)
{
if(time && size)
time[0] = '\0';
if(!time) {
*_errno() = EINVAL;
return EINVAL;
}
if(size < 9) {
*_errno() = ERANGE;
return ERANGE;
}
_wstrtime(time);
return 0;
}
/*********************************************************************
* clock (MSVCRT.@)
*/
clock_t CDECL clock(void)
{
LARGE_INTEGER systime;
NtQuerySystemTime(&systime);
return (systime.QuadPart - init_time) / (TICKSPERSEC / CLOCKS_PER_SEC);
}
/*********************************************************************
* _difftime64 (MSVCRT.@)
*/
double CDECL _difftime64(__time64_t time1, __time64_t time2)
{
return (double)(time1 - time2);
}
/*********************************************************************
* _difftime32 (MSVCRT.@)
*/
double CDECL _difftime32(__time32_t time1, __time32_t time2)
{
return (double)(time1 - time2);
}
/*********************************************************************
* _ftime64 (MSVCRT.@)
*/
void CDECL _ftime64(struct __timeb64 *buf)
{
TIME_ZONE_INFORMATION tzinfo;
FILETIME ft;
ULONGLONG time;
_tzset_init();
GetSystemTimeAsFileTime(&ft);
time = ((ULONGLONG)ft.dwHighDateTime << 32) | ft.dwLowDateTime;
buf->time = time / TICKSPERSEC - SECS_1601_TO_1970;
buf->millitm = (time % TICKSPERSEC) / TICKSPERMSEC;
buf->timezone = MSVCRT___timezone / 60;
buf->dstflag = GetTimeZoneInformation( &tzinfo) == TIME_ZONE_ID_DAYLIGHT;
}
/*********************************************************************
* _ftime64_s (MSVCRT.@)
*/
int CDECL _ftime64_s(struct __timeb64 *buf)
{
if (!MSVCRT_CHECK_PMT( buf != NULL )) return EINVAL;
_ftime64(buf);
return 0;
}
/*********************************************************************
* _ftime32 (MSVCRT.@)
*/
void CDECL _ftime32(struct __timeb32 *buf)
{
struct __timeb64 buf64;
_ftime64( &buf64 );
buf->time = buf64.time;
buf->millitm = buf64.millitm;
buf->timezone = buf64.timezone;
buf->dstflag = buf64.dstflag;
}
/*********************************************************************
* _ftime32_s (MSVCRT.@)
*/
int CDECL _ftime32_s(struct __timeb32 *buf)
{
if (!MSVCRT_CHECK_PMT( buf != NULL )) return EINVAL;
_ftime32(buf);
return 0;
}
/*********************************************************************
* _time64 (MSVCRT.@)
*/
__time64_t CDECL _time64(__time64_t *buf)
{
__time64_t curtime;
struct __timeb64 tb;
_ftime64(&tb);
curtime = tb.time;
return buf ? *buf = curtime : curtime;
}
/*********************************************************************
* _time32 (MSVCRT.@)
*/
__time32_t CDECL _time32(__time32_t *buf)
{
__time32_t curtime;
struct __timeb64 tb;
_ftime64(&tb);
curtime = tb.time;
return buf ? *buf = curtime : curtime;
}
/*********************************************************************
* __p__daylight (MSVCRT.@)
*/
int * CDECL __p__daylight(void)
{
return &MSVCRT___daylight;
}
/*********************************************************************
* __p__dstbias (MSVCRT.@)
*/
__msvcrt_long * CDECL __p__dstbias(void)
{
return &MSVCRT__dstbias;
}
#if _MSVCR_VER >= 80
/*********************************************************************
* _get_dstbias (MSVCR80.@)
*/
int CDECL _get_dstbias(int *seconds)
{
if (!MSVCRT_CHECK_PMT(seconds != NULL)) return EINVAL;
*seconds = MSVCRT__dstbias;
return 0;
}
#endif
/*********************************************************************
* __p__timezone (MSVCRT.@)
*/
__msvcrt_long * CDECL __p__timezone(void)
{
return &MSVCRT___timezone;
}
/*********************************************************************
* _get_tzname (MSVCRT.@)
*/
int CDECL _get_tzname(size_t *ret, char *buf, size_t bufsize, int index)
{
char *timezone;
switch(index)
{
case 0:
timezone = tzname_std;
break;
case 1:
timezone = tzname_dst;
break;
default:
*_errno() = EINVAL;
return EINVAL;
}
if(!ret || (!buf && bufsize > 0) || (buf && !bufsize))
{
*_errno() = EINVAL;
return EINVAL;
}
*ret = strlen(timezone)+1;
if(!buf && !bufsize)
return 0;
if(*ret > bufsize)
{
buf[0] = 0;
return ERANGE;
}
strcpy(buf, timezone);
return 0;
}
/*********************************************************************
* __p_tzname (MSVCRT.@)
*/
char ** CDECL __p__tzname(void)
{
return MSVCRT__tzname;
}
#if _MSVCR_VER <= 90
#define STRFTIME_CHAR char
#define STRFTIME_TD(td, name) td->str.names.name
#else
#define STRFTIME_CHAR wchar_t
#define STRFTIME_TD(td, name) td->wstr.names.name
#endif
#define strftime_str(a,b,c,d) strftime_nstr(a,b,c,d,SIZE_MAX)
static inline BOOL strftime_nstr(STRFTIME_CHAR *str, size_t *pos,
size_t max, const STRFTIME_CHAR *src, size_t len)
{
while(*src && len)
{
if(*pos >= max) {
*str = 0;
*_errno() = ERANGE;
return FALSE;
}
str[*pos] = *src;
src++;
*pos += 1;
len--;
}
return TRUE;
}
static inline BOOL strftime_int(STRFTIME_CHAR *str, size_t *pos, size_t max,
int src, int prec, int l, int h)
{
size_t len;
if(!MSVCRT_CHECK_PMT(src>=l && src<=h)) {
*str = 0;
return FALSE;
}
#if _MSVCR_VER <= 90
len = _snprintf(str+*pos, max-*pos, "%0*d", prec, src);
#else
len = _snwprintf(str+*pos, max-*pos, L"%0*d", prec, src);
#endif
if(len == -1) {
*str = 0;
*_errno() = ERANGE;
return FALSE;
}
*pos += len;
return TRUE;
}
static inline BOOL strftime_format(STRFTIME_CHAR *str, size_t *pos, size_t max,
const struct tm *mstm, __lc_time_data *time_data, const STRFTIME_CHAR *format)
{
size_t count;
BOOL ret = TRUE;
while(*format && ret)
{
count = 1;
while(format[0] == format[count]) count++;
switch(*format) {
case '\'':
if(count % 2 == 0) break;
format += count;
count = 0;
while(format[count] && format[count] != '\'') count++;
ret = strftime_nstr(str, pos, max, format, count);
if(!ret) return FALSE;
if(format[count] == '\'') count++;
break;
case 'd':
if(count > 2)
{
if(!MSVCRT_CHECK_PMT(mstm->tm_wday>=0 && mstm->tm_wday<=6))
{
*str = 0;
return FALSE;
}
}
switch(count) {
case 1:
case 2:
ret = strftime_int(str, pos, max, mstm->tm_mday, count==1 ? 0 : 2, 1, 31);
break;
case 3:
ret = strftime_str(str, pos, max, STRFTIME_TD(time_data, short_wday)[mstm->tm_wday]);
break;
default:
ret = strftime_nstr(str, pos, max, format, count-4);
if(ret)
ret = strftime_str(str, pos, max, STRFTIME_TD(time_data, wday)[mstm->tm_wday]);
break;
}
break;
case 'M':
if(count > 2)
{
if(!MSVCRT_CHECK_PMT(mstm->tm_mon>=0 && mstm->tm_mon<=11))
{
*str = 0;
return FALSE;
}
}
switch(count) {
case 1:
case 2:
ret = strftime_int(str, pos, max, mstm->tm_mon+1, count==1 ? 0 : 2, 1, 12);
break;
case 3:
ret = strftime_str(str, pos, max, STRFTIME_TD(time_data, short_mon)[mstm->tm_mon]);
break;
default:
ret = strftime_nstr(str, pos, max, format, count-4);
if(ret)
ret = strftime_str(str, pos, max, STRFTIME_TD(time_data, mon)[mstm->tm_mon]);
break;
}
break;
case 'y':
if(count > 1)
{
#if _MSVCR_VER>=140
if(!MSVCRT_CHECK_PMT(mstm->tm_year >= -1900 && mstm->tm_year <= 8099))
#else
if(!MSVCRT_CHECK_PMT(mstm->tm_year >= 0))
#endif
{
*str = 0;
return FALSE;
}
}
switch(count) {
case 1:
ret = strftime_nstr(str, pos, max, format, 1);
break;
case 2:
case 3:
ret = strftime_nstr(str, pos, max, format, count-2);
if(ret)
ret = strftime_int(str, pos, max, (mstm->tm_year+1900)%100, 2, 0, 99);
break;
default:
ret = strftime_nstr(str, pos, max, format, count-4);
if(ret)
ret = strftime_int(str, pos, max, mstm->tm_year+1900, 4, 0, 9999);
break;
}
break;
case 'h':
if(!MSVCRT_CHECK_PMT(mstm->tm_hour>=0 && mstm->tm_hour<=23))
{
*str = 0;
return FALSE;
}
if(count > 2)
ret = strftime_nstr(str, pos, max, format, count-2);
if(ret)
ret = strftime_int(str, pos, max, (mstm->tm_hour + 11) % 12 + 1,
count == 1 ? 0 : 2, 1, 12);
break;
case 'H':
if(count > 2)
ret = strftime_nstr(str, pos, max, format, count-2);
if(ret)
ret = strftime_int(str, pos, max, mstm->tm_hour, count == 1 ? 0 : 2, 0, 23);
break;
case 'm':
if(count > 2)
ret = strftime_nstr(str, pos, max, format, count-2);
if(ret)
ret = strftime_int(str, pos, max, mstm->tm_min, count == 1 ? 0 : 2, 0, 59);
break;
case 's':
if(count > 2)
ret = strftime_nstr(str, pos, max, format, count-2);
if(ret)
ret = strftime_int(str, pos, max, mstm->tm_sec, count == 1 ? 0 : 2, 0, MAX_SECONDS);
break;
case 'a':
case 'A':
case 't':
if(!MSVCRT_CHECK_PMT(mstm->tm_hour>=0 && mstm->tm_hour<=23))
{
*str = 0;
return FALSE;
}
ret = strftime_nstr(str, pos, max,
mstm->tm_hour < 12 ? STRFTIME_TD(time_data, am) : STRFTIME_TD(time_data, pm),
(*format == 't' && count == 1) ? 1 : SIZE_MAX);
break;
default:
ret = strftime_nstr(str, pos, max, format, count);
break;
}
format += count;
}
return ret;
}
#if _MSVCR_VER>=140
static inline BOOL strftime_tzdiff(STRFTIME_CHAR *str, size_t *pos, size_t max, BOOL is_dst)
{
__msvcrt_long tz = MSVCRT___timezone + (is_dst ? MSVCRT__dstbias : 0);
char sign;
if(tz < 0) {
sign = '+';
tz = -tz;
}else {
sign = '-';
}
if(*pos < max)
str[(*pos)++] = sign;
if(!strftime_int(str, pos, max, tz/60/60, 2, 0, 99))
return FALSE;
return strftime_int(str, pos, max, tz/60%60, 2, 0, 59);
}
#endif
static size_t strftime_impl(STRFTIME_CHAR *str, size_t max,
const STRFTIME_CHAR *format, const struct tm *mstm,
__lc_time_data *time_data, _locale_t loc)
{
size_t ret, tmp;
BOOL alternate;
int year = mstm ? mstm->tm_year + 1900 : -1;
if(!str || !format) {
if(str && max)
*str = 0;
*_errno() = EINVAL;
return 0;
}
if(!time_data)
time_data = loc ? loc->locinfo->lc_time_curr : get_locinfo()->lc_time_curr;
for(ret=0; *format && ret<max; format++) {
if(*format != '%') {
if(_isleadbyte_l((unsigned char)*format, loc)) {
str[ret++] = *(format++);
if(ret == max) continue;
if(!MSVCRT_CHECK_PMT(str[ret]))
goto einval_error;
}
str[ret++] = *format;
continue;
}
format++;
if(*format == '#') {
alternate = TRUE;
format++;
}else {
alternate = FALSE;
}
if(!MSVCRT_CHECK_PMT(mstm))
goto einval_error;
switch(*format) {
case 'c':
#if _MSVCR_VER>=140
if(time_data == &cloc_time_data && !alternate)
{
tmp = strftime_impl(str+ret, max-ret, L"%a %b %e %T %Y", mstm, time_data, loc);
if(!tmp)
return 0;
ret += tmp;
break;
}
#endif
if(!strftime_format(str, &ret, max, mstm, time_data,
alternate ? STRFTIME_TD(time_data, date) : STRFTIME_TD(time_data, short_date)))
return 0;
if(ret < max)
str[ret++] = ' ';
if(!strftime_format(str, &ret, max, mstm, time_data, STRFTIME_TD(time_data, time)))
return 0;
break;
case 'x':
if(!strftime_format(str, &ret, max, mstm, time_data,
alternate ? STRFTIME_TD(time_data, date) : STRFTIME_TD(time_data, short_date)))
return 0;
break;
case 'X':
if(!strftime_format(str, &ret, max, mstm, time_data, STRFTIME_TD(time_data, time)))
return 0;
break;
case 'a':
if(!MSVCRT_CHECK_PMT(mstm->tm_wday>=0 && mstm->tm_wday<=6))
goto einval_error;
if(!strftime_str(str, &ret, max, STRFTIME_TD(time_data, short_wday)[mstm->tm_wday]))
return 0;
break;
case 'A':
if(!MSVCRT_CHECK_PMT(mstm->tm_wday>=0 && mstm->tm_wday<=6))
goto einval_error;
if(!strftime_str(str, &ret, max, STRFTIME_TD(time_data, wday)[mstm->tm_wday]))
return 0;
break;
case 'b':
#if _MSVCR_VER>=140
case 'h':
#endif
if(!MSVCRT_CHECK_PMT(mstm->tm_mon>=0 && mstm->tm_mon<=11))
goto einval_error;
if(!strftime_str(str, &ret, max, STRFTIME_TD(time_data, short_mon)[mstm->tm_mon]))
return 0;
break;
case 'B':
if(!MSVCRT_CHECK_PMT(mstm->tm_mon>=0 && mstm->tm_mon<=11))
goto einval_error;
if(!strftime_str(str, &ret, max, STRFTIME_TD(time_data, mon)[mstm->tm_mon]))
return 0;
break;
#if _MSVCR_VER>=140
case 'C':
if(!MSVCRT_CHECK_PMT(year>=0 && year<=9999))
goto einval_error;
if(!strftime_int(str, &ret, max, year/100, alternate ? 0 : 2, 0, 99))
return 0;
break;
#endif
case 'd':
if(!strftime_int(str, &ret, max, mstm->tm_mday, alternate ? 0 : 2, 1, 31))
return 0;
break;
#if _MSVCR_VER>=140
case 'D':
if(!MSVCRT_CHECK_PMT(year>=0 && year<=9999))
goto einval_error;
if(!strftime_int(str, &ret, max, mstm->tm_mon+1, alternate ? 0 : 2, 1, 12))
return 0;
if(ret < max)
str[ret++] = '/';
if(!strftime_int(str, &ret, max, mstm->tm_mday, alternate ? 0 : 2, 1, 31))
return 0;
if(ret < max)
str[ret++] = '/';
if(!strftime_int(str, &ret, max, year%100, alternate ? 0 : 2, 0, 99))
return 0;
break;
case 'e':
if(!strftime_int(str, &ret, max, mstm->tm_mday, alternate ? 0 : 2, 1, 31))
return 0;
if(!alternate && str[ret-2] == '0')
str[ret-2] = ' ';
break;
case 'F':
if(!strftime_int(str, &ret, max, year, alternate ? 0 : 4, 0, 9999))
return 0;
if(ret < max)
str[ret++] = '-';
if(!strftime_int(str, &ret, max, mstm->tm_mon+1, alternate ? 0 : 2, 1, 12))
return 0;
if(ret < max)
str[ret++] = '-';
if(!strftime_int(str, &ret, max, mstm->tm_mday, alternate ? 0 : 2, 1, 31))
return 0;
break;
case 'g':
case 'G':
if(!MSVCRT_CHECK_PMT(year>=0 && year<=9999))
goto einval_error;
/* fall through */
case 'V':
{
int iso_year = year;
int iso_days = mstm->tm_yday - (mstm->tm_wday ? mstm->tm_wday : 7) + 4;
if (iso_days < 0)
iso_days += 365 + IsLeapYear(--iso_year);
else if(iso_days >= 365 + IsLeapYear(iso_year))
iso_days -= 365 + IsLeapYear(iso_year++);
if(*format == 'G') {
if(!strftime_int(str, &ret, max, iso_year, 4, 0, 9999))
return 0;
} else if(*format == 'g') {
if(!strftime_int(str, &ret, max, iso_year%100, 2, 0, 99))
return 0;
} else {
if(!strftime_int(str, &ret, max, iso_days/7 + 1, alternate ? 0 : 2, 0, 53))
return 0;
}
break;
}
#endif
case 'H':
if(!strftime_int(str, &ret, max, mstm->tm_hour, alternate ? 0 : 2, 0, 23))
return 0;
break;
case 'I':
if(!MSVCRT_CHECK_PMT(mstm->tm_hour>=0 && mstm->tm_hour<=23))
goto einval_error;
if(!strftime_int(str, &ret, max, (mstm->tm_hour + 11) % 12 + 1,
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;
#if _MSVCR_VER>=140
case 'n':
str[ret++] = '\n';
break;
#endif
case 'p':
if(!MSVCRT_CHECK_PMT(mstm->tm_hour>=0 && mstm->tm_hour<=23))
goto einval_error;
if(!strftime_str(str, &ret, max, mstm->tm_hour<12 ?
STRFTIME_TD(time_data, am) : STRFTIME_TD(time_data, pm)))
return 0;
break;
#if _MSVCR_VER>=140
case 'r':
if(time_data == &cloc_time_data)
{
if(!MSVCRT_CHECK_PMT(mstm->tm_hour>=0 && mstm->tm_hour<=23))
goto einval_error;
if(!strftime_int(str, &ret, max, (mstm->tm_hour + 11) % 12 + 1,
alternate ? 0 : 2, 1, 12))
return 0;
if(ret < max)
str[ret++] = ':';
if(!strftime_int(str, &ret, max, mstm->tm_min, alternate ? 0 : 2, 0, 59))
return 0;
if(ret < max)
str[ret++] = ':';
if(!strftime_int(str, &ret, max, mstm->tm_sec, alternate ? 0 : 2, 0, MAX_SECONDS))
return 0;
if(ret < max)
str[ret++] = ' ';
if(!strftime_str(str, &ret, max, mstm->tm_hour<12 ?
STRFTIME_TD(time_data, am) : STRFTIME_TD(time_data, pm)))
return 0;
}
else
{
if(!strftime_format(str, &ret, max, mstm, time_data, STRFTIME_TD(time_data, time)))
return 0;
}
break;
case 'R':
if(!strftime_int(str, &ret, max, mstm->tm_hour, alternate ? 0 : 2, 0, 23))
return 0;
if(ret < max)
str[ret++] = ':';
if(!strftime_int(str, &ret, max, mstm->tm_min, alternate ? 0 : 2, 0, 59))
return 0;
break;
#endif
case 'S':
if(!strftime_int(str, &ret, max, mstm->tm_sec, alternate ? 0 : 2, 0, MAX_SECONDS))
return 0;
break;
#if _MSVCR_VER>=140
case 't':
str[ret++] = '\t';
break;
case 'T':
if(!strftime_int(str, &ret, max, mstm->tm_hour, alternate ? 0 : 2, 0, 23))
return 0;
if(ret < max)
str[ret++] = ':';
if(!strftime_int(str, &ret, max, mstm->tm_min, alternate ? 0 : 2, 0, 59))
return 0;
if(ret < max)
str[ret++] = ':';
if(!strftime_int(str, &ret, max, mstm->tm_sec, alternate ? 0 : 2, 0, MAX_SECONDS))
return 0;
break;
case 'u':
if(!MSVCRT_CHECK_PMT(mstm->tm_wday>=0 && mstm->tm_wday<=6))
goto einval_error;
tmp = mstm->tm_wday ? mstm->tm_wday : 7;
if(!strftime_int(str, &ret, max, tmp, 0, 1, 7))
return 0;
break;
#endif
case 'w':
if(!strftime_int(str, &ret, max, mstm->tm_wday, 0, 0, 6))
return 0;
break;
case 'y':
#if _MSVCR_VER>=140
if(!MSVCRT_CHECK_PMT(year>=0 && year<=9999))
#else
if(!MSVCRT_CHECK_PMT(year>=1900))
#endif
goto einval_error;
if(!strftime_int(str, &ret, max, year%100, alternate ? 0 : 2, 0, 99))
return 0;
break;
case 'Y':
if(!strftime_int(str, &ret, max, year, alternate ? 0 : 4, 0, 9999))
return 0;
break;
case 'z':
#if _MSVCR_VER>=140
_tzset();
if(!strftime_tzdiff(str, &ret, max, mstm->tm_isdst))
return 0;
break;
#endif
case 'Z':
_tzset();
#if _MSVCR_VER <= 90
if(_get_tzname(&tmp, str+ret, max-ret, mstm->tm_isdst ? 1 : 0))
return 0;
#else
if(_mbstowcs_s_l(&tmp, str+ret, max-ret,
mstm->tm_isdst ? tzname_dst : tzname_std,
_TRUNCATE, loc) == STRUNCATE)
ret = max;
#endif
ret += tmp-1;
break;
case 'U':
case 'W':
if(!MSVCRT_CHECK_PMT(mstm->tm_wday>=0 && mstm->tm_wday<=6))
goto einval_error;
if(!MSVCRT_CHECK_PMT(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);
MSVCRT_INVALID_PMT("unknown format", EINVAL);
goto einval_error;
}
}
if(ret == max) {
if(max)
*str = 0;
*_errno() = ERANGE;
return 0;
}
str[ret] = 0;
return ret;
einval_error:
*str = 0;
return 0;
}
static size_t strftime_helper(char *str, size_t max, const char *format,
const struct tm *mstm, __lc_time_data *time_data, _locale_t loc)
{
#if _MSVCR_VER <= 90
TRACE("(%p %Iu %s %p %p %p)\n", str, max, format, mstm, time_data, loc);
return strftime_impl(str, max, format, mstm, time_data, loc);
#else
wchar_t *s, *fmt;
size_t len;
int cp;
TRACE("(%p %Iu %s %p %p %p)\n", str, max, format, mstm, time_data, loc);
if (!MSVCRT_CHECK_PMT(str != NULL)) return 0;
if (!MSVCRT_CHECK_PMT(max != 0)) return 0;
*str = 0;
if (!MSVCRT_CHECK_PMT(format != NULL)) return 0;
cp = (loc ? loc->locinfo : get_locinfo())->lc_id[LC_TIME].wCodePage;
len = MultiByteToWideChar( cp, 0, format, -1, NULL, 0 );
if (!len)
{
*_errno() = EILSEQ;
return 0;
}
fmt = malloc( len*sizeof(wchar_t) );
if (!fmt) return 0;
MultiByteToWideChar( cp, 0, format, -1, fmt, len );
if ((s = malloc( max*sizeof(wchar_t) )))
{
len = strftime_impl( s, max, fmt, mstm, time_data, loc );
if (len)
{
len = WideCharToMultiByte( cp, 0, s, -1, str, max, NULL, NULL );
if (len) len--;
else *_errno() = EILSEQ;
}
free( s );
}
else len = 0;
free( fmt );
return len;
#endif
}
#if _MSVCR_VER >= 80
/********************************************************************
* _strftime_l (MSVCR80.@)
*/
size_t CDECL _strftime_l( char *str, size_t max, const char *format,
const struct tm *mstm, _locale_t loc )
{
return strftime_helper(str, max, format, mstm, NULL, loc);
}
#endif
/*********************************************************************
* _Strftime (MSVCRT.@)
*/
size_t CDECL _Strftime(char *str, size_t max, const char *format,
const struct tm *mstm, void *time_data)
{
return strftime_helper(str, max, format, mstm, time_data, NULL);
}
/*********************************************************************
* strftime (MSVCRT.@)
*/
size_t CDECL strftime( char *str, size_t max, const char *format,
const struct tm *mstm )
{
return strftime_helper(str, max, format, mstm, NULL, NULL);
}
static size_t wcsftime_helper( wchar_t *str, size_t max,
const wchar_t *format, const struct tm *mstm,
__lc_time_data *time_data, _locale_t loc )
{
#if _MSVCR_VER <= 90
char *s, *fmt;
size_t len;
TRACE("%p %Iu %s %p %p %p\n", str, max, debugstr_w(format), mstm, time_data, loc);
len = _wcstombs_l( NULL, format, 0, loc ) + 1;
if (!(fmt = malloc( len ))) return 0;
_wcstombs_l(fmt, format, len, loc);
if ((s = malloc( max*4 )))
{
if (!strftime_impl( s, max*4, fmt, mstm, time_data, loc )) s[0] = 0;
len = _mbstowcs_l( str, s, max, loc );
free( s );
}
else len = 0;
free( fmt );
return len;
#else
TRACE("%p %Iu %s %p %p %p\n", str, max, debugstr_w(format), mstm, time_data, loc);
return strftime_impl(str, max, format, mstm, time_data, loc);
#endif
}
/*********************************************************************
* _wcsftime_l (MSVCRT.@)
*/
size_t CDECL _wcsftime_l( wchar_t *str, size_t max,
const wchar_t *format, const struct tm *mstm, _locale_t loc )
{
return wcsftime_helper(str, max, format, mstm, NULL, loc);
}
/*********************************************************************
* wcsftime (MSVCRT.@)
*/
size_t CDECL wcsftime( wchar_t *str, size_t max,
const wchar_t *format, const struct tm *mstm )
{
return wcsftime_helper(str, max, format, mstm, NULL, NULL);
}
#if _MSVCR_VER >= 110
/*********************************************************************
* _Wcsftime (MSVCR110.@)
*/
size_t CDECL _Wcsftime(wchar_t *str, size_t max,
const wchar_t *format, const struct tm *mstm,
__lc_time_data *time_data)
{
return wcsftime_helper(str, max, format, mstm, time_data, NULL);
}
#endif
static char* asctime_buf(char *buf, const struct 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]) {
*_errno() = EINVAL;
return NULL;
}
#if _MSVCR_VER>=140
/* C89 (4.12.3.1) uses space-padding for day of month. */
_snprintf(buf, 26, "%s %s %2d %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);
#else
_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);
#endif
return buf;
}
/*********************************************************************
* asctime (MSVCRT.@)
*/
char * CDECL asctime(const struct 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 = malloc(26);
if (!data->asctime_buffer) {
*_errno() = ENOMEM;
return NULL;
}
}
return asctime_buf(data->asctime_buffer, mstm);
}
/*********************************************************************
* asctime_s (MSVCRT.@)
*/
int CDECL asctime_s(char* time, size_t size, const struct tm *mstm)
{
if (!MSVCRT_CHECK_PMT(time != NULL)) return EINVAL;
if (size) time[0] = 0;
if (!MSVCRT_CHECK_PMT(size >= 26)) return EINVAL;
if (!MSVCRT_CHECK_PMT(mstm != NULL)) return EINVAL;
if (!MSVCRT_CHECK_PMT(mstm->tm_sec >= 0 && mstm->tm_sec < 60)) return EINVAL;
if (!MSVCRT_CHECK_PMT(mstm->tm_min >= 0 && mstm->tm_min < 60)) return EINVAL;
if (!MSVCRT_CHECK_PMT(mstm->tm_hour >= 0 && mstm->tm_hour < 24)) return EINVAL;
if (!MSVCRT_CHECK_PMT(mstm->tm_mon >= 0 && mstm->tm_mon < 12)) return EINVAL;
if (!MSVCRT_CHECK_PMT(mstm->tm_wday >= 0 && mstm->tm_wday < 7)) return EINVAL;
if (!MSVCRT_CHECK_PMT(mstm->tm_year >= 0)) return EINVAL;
if (!MSVCRT_CHECK_PMT(mstm->tm_mday >= 0)) return EINVAL;
if (!MSVCRT_CHECK_PMT(mstm->tm_mday <= MonthLengths[IsLeapYear(1900+mstm->tm_year)][mstm->tm_mon])) return EINVAL;
asctime_buf(time, mstm);
return 0;
}
/*********************************************************************
* _wasctime (MSVCRT.@)
*/
wchar_t * CDECL _wasctime(const struct tm *mstm)
{
thread_data_t *data = msvcrt_get_thread_data();
char buffer[26];
if(!data->wasctime_buffer) {
data->wasctime_buffer = malloc(26*sizeof(wchar_t));
if(!data->wasctime_buffer) {
*_errno() = 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 _wasctime_s(wchar_t* time, size_t size, const struct tm *mstm)
{
char buffer[26];
int ret;
if (!MSVCRT_CHECK_PMT(time != NULL)) return EINVAL;
if (size) time[0] = 0;
if (!MSVCRT_CHECK_PMT(size >= 26)) return EINVAL;
if (!MSVCRT_CHECK_PMT(mstm != NULL)) return EINVAL;
ret = asctime_s(buffer, sizeof(buffer), mstm);
if(ret)
return ret;
MultiByteToWideChar(CP_ACP, 0, buffer, -1, time, size);
return 0;
}
/*********************************************************************
* _ctime64 (MSVCRT.@)
*/
char * CDECL _ctime64(const __time64_t *time)
{
struct tm *t;
t = _localtime64( time );
if (!t) return NULL;
return asctime( t );
}
/*********************************************************************
* _ctime64_s (MSVCRT.@)
*/
errno_t CDECL _ctime64_s(char *res, size_t len, const __time64_t *time)
{
struct tm *t;
if (!MSVCRT_CHECK_PMT( res != NULL )) return EINVAL;
if (!MSVCRT_CHECK_PMT( len >= 26 )) return EINVAL;
res[0] = '\0';
if (!MSVCRT_CHECK_PMT( time != NULL )) return EINVAL;
if (!MSVCRT_CHECK_PMT( *time > 0 )) return EINVAL;
t = _localtime64( time );
strcpy( res, asctime( t ) );
return 0;
}
/*********************************************************************
* _ctime32 (MSVCRT.@)
*/
char * CDECL _ctime32(const __time32_t *time)
{
struct tm *t;
t = _localtime32( time );
if (!t) return NULL;
return asctime( t );
}
/*********************************************************************
* _ctime32_s (MSVCRT.@)
*/
errno_t CDECL _ctime32_s(char *res, size_t len, const __time32_t *time)
{
struct tm *t;
if (!MSVCRT_CHECK_PMT( res != NULL )) return EINVAL;
if (!MSVCRT_CHECK_PMT( len >= 26 )) return EINVAL;
res[0] = '\0';
if (!MSVCRT_CHECK_PMT( time != NULL )) return EINVAL;
if (!MSVCRT_CHECK_PMT( *time > 0 )) return EINVAL;
t = _localtime32( time );
strcpy( res, asctime( t ) );
return 0;
}
/*********************************************************************
* _wctime64 (MSVCRT.@)
*/
wchar_t * CDECL _wctime64(const __time64_t *time)
{
return _wasctime( _localtime64(time) );
}
/*********************************************************************
* _wctime32 (MSVCRT.@)
*/
wchar_t * CDECL _wctime32(const __time32_t *time)
{
return _wasctime( _localtime32(time) );
}
/*********************************************************************
* _wctime64_s (MSVCRT.@)
*/
int CDECL _wctime64_s(wchar_t *buf,
size_t size, const __time64_t *time)
{
struct tm tm;
int ret;
if(!MSVCRT_CHECK_PMT(buf != NULL)) return EINVAL;
if(!MSVCRT_CHECK_PMT(size != 0)) return EINVAL;
buf[0] = 0;
if(!MSVCRT_CHECK_PMT(time != NULL)) return EINVAL;
if(!MSVCRT_CHECK_PMT(*time >= 0)) return EINVAL;
if(!MSVCRT_CHECK_PMT(*time <= _MAX__TIME64_T)) return EINVAL;
ret = _localtime64_s(&tm, time);
if(ret != 0)
return ret;
return _wasctime_s(buf, size, &tm);
}
/*********************************************************************
* _wctime32_s (MSVCRT.@)
*/
int CDECL _wctime32_s(wchar_t *buf, size_t size,
const __time32_t *time)
{
struct tm tm;
int ret;
if(!MSVCRT_CHECK_PMT(buf != NULL)) return EINVAL;
if(!MSVCRT_CHECK_PMT(size != 0)) return EINVAL;
buf[0] = 0;
if(!MSVCRT_CHECK_PMT(time != NULL)) return EINVAL;
if(!MSVCRT_CHECK_PMT(*time >= 0)) return EINVAL;
ret = _localtime32_s(&tm, time);
if(ret != 0)
return ret;
return _wasctime_s(buf, size, &tm);
}
#if _MSVCR_VER >= 80
/*********************************************************************
* _get_timezone (MSVCR80.@)
*/
int CDECL _get_timezone(LONG *timezone)
{
if(!MSVCRT_CHECK_PMT(timezone != NULL)) return EINVAL;
*timezone = MSVCRT___timezone;
return 0;
}
/*********************************************************************
* _get_daylight (MSVCR80.@)
*/
int CDECL _get_daylight(int *hours)
{
if(!MSVCRT_CHECK_PMT(hours != NULL)) return EINVAL;
*hours = MSVCRT___daylight;
return 0;
}
#endif /* _MSVCR_VER >= 80 */
#if _MSVCR_VER >= 140
#define TIME_UTC 1
struct _timespec32
{
__time32_t tv_sec;
LONG tv_nsec;
};
struct _timespec64
{
__time64_t tv_sec;
LONG tv_nsec;
};
/*********************************************************************
* _timespec64_get (UCRTBASE.@)
*/
int CDECL _timespec64_get(struct _timespec64 *ts, int base)
{
ULONGLONG time;
FILETIME ft;
if(!MSVCRT_CHECK_PMT(ts != NULL)) return 0;
if(base != TIME_UTC) return 0;
GetSystemTimePreciseAsFileTime(&ft);
time = ((ULONGLONG)ft.dwHighDateTime << 32) | ft.dwLowDateTime;
ts->tv_sec = time / TICKSPERSEC - SECS_1601_TO_1970;
ts->tv_nsec = time % TICKSPERSEC * 100;
return base;
}
/*********************************************************************
* _timespec32_get (UCRTBASE.@)
*/
int CDECL _timespec32_get(struct _timespec32 *ts, int base)
{
struct _timespec64 ts64;
if(!MSVCRT_CHECK_PMT(ts != NULL)) return 0;
if(base != TIME_UTC) return 0;
if(_timespec64_get(&ts64, base) != base)
return 0;
if(ts64.tv_sec != (__time32_t)ts64.tv_sec)
return 0;
ts->tv_sec = ts64.tv_sec;
ts->tv_nsec = ts64.tv_nsec;
return base;
}
#endif /* _MSVCR_VER >= 140 */
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