4 * RtlTimeToTimeFields, RtlTimeFieldsToTime and defines are taken from ReactOS and
5 * adapted to wine with special permissions of the author. This code is
6 * Copyright 2002 Rex Jolliff (rex@lvcablemodem.com)
8 * Copyright 1999 Juergen Schmied
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #include "wine/port.h"
33 #ifdef HAVE_SYS_TIME_H
34 # include <sys/time.h>
40 #define NONAMELESSUNION
41 #define NONAMELESSSTRUCT
46 #include "wine/unicode.h"
47 #include "wine/debug.h"
48 #include "ntdll_misc.h"
50 WINE_DEFAULT_DEBUG_CHANNEL(ntdll
);
52 static CRITICAL_SECTION TIME_GetBias_section
;
53 static CRITICAL_SECTION_DEBUG critsect_debug
=
55 0, 0, &TIME_GetBias_section
,
56 { &critsect_debug
.ProcessLocksList
, &critsect_debug
.ProcessLocksList
},
57 0, 0, { 0, (DWORD
)(__FILE__
": TIME_GetBias_section") }
59 static CRITICAL_SECTION TIME_GetBias_section
= { &critsect_debug
, -1, 0, 0, 0, 0 };
61 /* TimeZone registry key values */
62 static const WCHAR TZInformationKeyW
[] = { 'M','a','c','h','i','n','e','\\',
63 'S','Y','S','T','E','M','\\','C','u','r','r','e','n','t','C','o','n','t','r',
64 'o','l','S','e','t','\\','C','o','n','t','r','o','l','\\','T','i','m','e','z',
65 'o','n','e','I','n','f','o','r','m','a','t','i','o','n', 0};
66 static const WCHAR TZStandardStartW
[] = {
67 'S','t','a','n','d','a','r','d','s','t','a','r','t', 0};
68 static const WCHAR TZDaylightStartW
[] = {
69 'D','a','y','l','i','g','h','t','s','t','a','r','t', 0};
70 static const WCHAR TZDaylightBiasW
[] = {
71 'D','a','y','l','i','g','h','t','B','i','a','s', 0};
72 static const WCHAR TZStandardBiasW
[] = {
73 'S','t','a','n','d','a','r','d','B','i','a','s', 0};
74 static const WCHAR TZBiasW
[] = {'B','i','a','s', 0};
75 static const WCHAR TZDaylightNameW
[] = {
76 'D','a','y','l','i','g','h','t','N','a','m','e', 0};
77 static const WCHAR TZStandardNameW
[] = {
78 'S','t','a','n','d','a','r','d','N','a','m','e', 0};
81 #define SETTIME_MAX_ADJUST 120
83 /* This structure is used to store strings that represent all of the time zones
84 * in the world. (This is used to help GetTimeZoneInformation)
88 const char *psTZFromUnix
;
89 WCHAR psTZWindows
[32];
94 static const struct tagTZ_INFO TZ_INFO
[] =
97 {'D','a','t','e','l','i','n','e',' ','S','t','a','n','d','a','r','d',' ',
98 'T','i','m','e','\0'}, -720, 0},
100 {'S','a','m','o','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
103 {'H','a','w','a','i','i','a','n',' ','S','t','a','n','d','a','r','d',' ',
104 'T','i','m','e','\0'}, 600, 0},
106 {'A','l','a','s','k','a','n',' ','S','t','a','n','d','a','r','d',' ','T',
107 'i','m','e','\0'}, 480, 1},
109 {'P','a','c','i','f','i','c',' ','S','t','a','n','d','a','r','d',' ','T',
110 'i','m','e','\0'}, 480, 0},
112 {'P','a','c','i','f','i','c',' ','S','t','a','n','d','a','r','d',' ','T',
113 'i','m','e','\0'}, 420, 1},
115 {'U','S',' ','M','o','u','n','t','a','i','n',' ','S','t','a','n','d','a',
116 'r','d',' ','T','i','m','e','\0'}, 420, 0},
118 {'M','o','u','n','t','a','i','n',' ','S','t','a','n','d','a','r','d',' ',
119 'T','i','m','e','\0'}, 360, 1},
121 {'C','e','n','t','r','a','l',' ','A','m','e','r','i','c','a',' ','S','t',
122 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, 360, 0},
124 {'C','e','n','t','r','a','l',' ','S','t','a','n','d','a','r','d',' ','T',
125 'i','m','e','\0'}, 300, 1},
127 {'S','A',' ','P','a','c','i','f','i','c',' ','S','t','a','n','d','a','r',
128 'd',' ','T','i','m','e','\0'}, 300, 0},
130 {'E','a','s','t','e','r','n',' ','S','t','a','n','d','a','r','d',' ','T',
131 'i','m','e','\0'}, 240, 1},
133 {'U','S',' ','E','a','s','t','e','r','n',' ','S','t','a','n','d','a','r',
134 'd',' ','T','i','m','e','\0'}, 300, 0},
136 {'A','t','l','a','n','t','i','c',' ','S','t','a','n','d','a','r','d',' ',
137 'T','i','m','e','\0'}, 180, 1},
139 {'S','A',' ','W','e','s','t','e','r','n',' ','S','t','a','n','d','a','r',
140 'd',' ','T','i','m','e','\0'}, 240, 0},
142 {'P','a','c','i','f','i','c',' ','S','A',' ','S','t','a','n','d','a','r',
143 'd',' ','T','i','m','e','\0'}, 240, 0},
145 {'N','e','w','f','o','u','n','d','l','a','n','d',' ','S','t','a','n','d',
146 'a','r','d',' ','T','i','m','e','\0'}, 150, 1},
148 {'E','.',' ','S','o','u','t','h',' ','A','m','e','r','i','c','a',' ','S',
149 't','a','n','d','a','r','d',' ','T','i','m','e','\0'}, 180, 0},
151 {'S','A',' ','E','a','s','t','e','r','n',' ','S','t','a','n','d','a','r',
152 'd',' ','T','i','m','e','\0'}, 180, 0},
154 {'G','r','e','e','n','l','a','n','d',' ','S','t','a','n','d','a','r','d',
155 ' ','T','i','m','e','\0'}, 120, 1},
157 {'M','i','d','-','A','t','l','a','n','t','i','c',' ','S','t','a','n','d',
158 'a','r','d',' ','T','i','m','e','\0'}, 120, 0},
160 {'A','z','o','r','e','s',' ','S','t','a','n','d','a','r','d',' ','T','i',
161 'm','e','\0'}, 0, 1},
163 {'C','a','p','e',' ','V','e','r','d','e',' ','S','t','a','n','d','a','r',
164 'd',' ','T','i','m','e','\0'}, 60, 0},
166 {'G','r','e','e','n','w','i','c','h',' ','S','t','a','n','d','a','r','d',
167 ' ','T','i','m','e','\0'}, 0, 0},
169 {'G','M','T',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'},
172 {'G','M','T',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'},
175 {'G','M','T',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'},
178 {'C','e','n','t','r','a','l',' ','E','u','r','o','p','e','a','n',' ',
179 'T','i','m','e','\0'}, -60, 0},
181 {'C','e','n','t','r','a','l',' ','E','u','r','o','p','e',' ','S','t','a',
182 'n','d','a','r','d',' ','T','i','m','e','\0'}, -120, 1},
184 {'C','e','n','t','r','a','l',' ','E','u','r','o','p','e',' ','S','t','a',
185 'n','d','a','r','d',' ','T','i','m','e','\0'}, -60, 0},
187 {'C','e','n','t','r','a','l',' ','E','u','r','o','p','e',' ','D','a','y',
188 'l','i','g','h','t',' ','T','i','m','e','\0'}, -120, 1},
190 {'W','.',' ','C','e','n','t','r','a','l',' ','A','f','r','i','c','a',' ',
191 'S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'}, -60, 0},
193 {'E','.',' ','E','u','r','o','p','e',' ','S','t','a','n','d','a','r','d',
194 ' ','T','i','m','e','\0'}, -180, 1},
196 {'E','g','y','p','t',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
199 {'C','e','n','t','r','a','l',' ','A','f','r','i','c','a','n',' '
200 ,'T','i','m','e','\0'}, -120, 0},
202 {'S','o','u','t','h',' ','A','f','r','i','c','a',' ','S','t','a','n','d',
203 'a','r','d',' ','T','i','m','e','\0'}, -120, 0},
205 {'I','s','r','a','e','l',' ','S','t','a','n','d','a','r','d',' ','T','i',
206 'm','e','\0'}, -120, 0},
208 {'R','u','s','s','i','a','n',' ','S','t','a','n','d','a','r','d',' ','T',
209 'i','m','e','\0'}, -180, 0},
211 {'A','r','a','b','i','c',' ','S','t','a','n','d','a','r','d',' ','T','i',
212 'm','e','\0'}, -240, 1},
214 {'A','r','a','b',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e',
217 {'R','u','s','s','i','a','n',' ','S','t','a','n','d','a','r','d',' ','T',
218 'i','m','e','\0'}, -240, 1},
220 {'E','.',' ','A','f','r','i','c','a',' ','S','t','a','n','d','a','r','d',
221 ' ','T','i','m','e','\0'}, -180, 0},
223 {'I','r','a','n',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e',
226 {'A','r','a','b','i','a','n',' ','S','t','a','n','d','a','r','d',' ','T',
227 'i','m','e','\0'}, -240, 0},
229 {'C','a','u','c','a','s','u','s',' ','S','t','a','n','d','a','r','d',' ',
230 'T','i','m','e','\0'}, -300, 1},
232 {'A','f','g','h','a','n','i','s','t','a','n',' ','S','t','a','n','d','a',
233 'r','d',' ','T','i','m','e','\0'}, -270, 0},
235 {'E','k','a','t','e','r','i','n','b','u','r','g',' ','S','t','a','n','d',
236 'a','r','d',' ','T','i','m','e','\0'}, -360, 1},
238 {'W','e','s','t',' ','A','s','i','a',' ','S','t','a','n','d','a','r','d',
239 ' ','T','i','m','e','\0'}, -300, 0},
241 {'I','n','d','i','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
244 {'N','e','p','a','l',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
247 {'N','.',' ','C','e','n','t','r','a','l',' ','A','s','i','a',' ','S','t',
248 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -420, 1},
250 {'C','e','n','t','r','a','l',' ','A','s','i','a',' ','S','t','a','n','d',
251 'a','r','d',' ','T','i','m','e','\0'}, -360, 0},
253 {'S','r','i',' ','L','a','n','k','a',' ','S','t','a','n','d','a','r','d',
254 ' ','T','i','m','e','\0'}, -360, 0},
256 {'M','y','a','n','m','a','r',' ','S','t','a','n','d','a','r','d',' ','T',
257 'i','m','e','\0'}, -390, 0},
259 {'S','E',' ','A','s','i','a',' ','S','t','a','n','d','a','r','d',' ','T',
260 'i','m','e','\0'}, -420, 0},
262 {'N','o','r','t','h',' ','A','s','i','a',' ','S','t','a','n','d','a','r',
263 'd',' ','T','i','m','e','\0'}, -480, 1},
265 {'C','h','i','n','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
268 {'N','o','r','t','h',' ','A','s','i','a',' ','E','a','s','t',' ','S','t',
269 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -540, 1},
271 {'M','a','l','a','y',' ','P','e','n','i','n','s','u','l','a',' ','S','t',
272 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -480, 0},
274 {'W','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a','n','d',
275 'a','r','d',' ','T','i','m','e','\0'}, -480, 0},
277 {'T','o','k','y','o',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
280 {'K','o','r','e','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
283 {'Y','a','k','u','t','s','k',' ','S','t','a','n','d','a','r','d',' ','T',
284 'i','m','e','\0'}, -600, 1},
286 {'C','e','n','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a',
287 'n','d','a','r','d',' ','T','i','m','e','\0'}, -570, 0},
289 {'E','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a','n','d',
290 'a','r','d',' ','T','i','m','e','\0'}, -600, 0},
292 {'W','e','s','t',' ','P','a','c','i','f','i','c',' ','S','t','a','n','d',
293 'a','r','d',' ','T','i','m','e','\0'}, -600, 0},
295 {'V','l','a','d','i','v','o','s','t','o','k',' ','S','t','a','n','d','a',
296 'r','d',' ','T','i','m','e','\0'}, -660, 1},
298 {'C','e','n','t','r','a','l',' ','P','a','c','i','f','i','c',' ','S','t',
299 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -720, 1},
301 {'N','e','w',' ','Z','e','a','l','a','n','d',' ','S','t','a','n','d','a',
302 'r','d',' ','T','i','m','e','\0'}, -720, 0},
304 {'F','i','j','i',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e',
307 {'T','o','n','g','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
310 {'N','o','v','o','s','i','b','i','r','s','k',' ','S','t','a','n','d','a',
311 'r','d',' ','T','i','m','e','\0'}, -360, 1}
314 #define TICKSPERSEC 10000000
315 #define TICKSPERMSEC 10000
316 #define SECSPERDAY 86400
317 #define SECSPERHOUR 3600
318 #define SECSPERMIN 60
319 #define MINSPERHOUR 60
320 #define HOURSPERDAY 24
321 #define EPOCHWEEKDAY 1 /* Jan 1, 1601 was Monday */
322 #define DAYSPERWEEK 7
323 #define EPOCHYEAR 1601
324 #define DAYSPERNORMALYEAR 365
325 #define DAYSPERLEAPYEAR 366
326 #define MONSPERYEAR 12
327 #define DAYSPERQUADRICENTENNIUM (365 * 400 + 97)
328 #define DAYSPERNORMALCENTURY (365 * 100 + 24)
329 #define DAYSPERNORMALQUADRENNIUM (365 * 4 + 1)
331 /* 1601 to 1970 is 369 years plus 89 leap days */
332 #define SECS_1601_TO_1970 ((369 * 365 + 89) * (ULONGLONG)SECSPERDAY)
333 #define TICKS_1601_TO_1970 (SECS_1601_TO_1970 * TICKSPERSEC)
334 /* 1601 to 1980 is 379 years plus 91 leap days */
335 #define SECS_1601_TO_1980 ((379 * 365 + 91) * (ULONGLONG)SECSPERDAY)
336 #define TICKS_1601_TO_1980 (SECS_1601_TO_1980 * TICKSPERSEC)
337 /* max ticks that can be represented as Unix time */
338 #define TICKS_1601_TO_UNIX_MAX ((SECS_1601_TO_1970 + INT_MAX) * TICKSPERSEC)
341 static const int MonthLengths
[2][MONSPERYEAR
] =
343 { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
344 { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
347 static inline int IsLeapYear(int Year
)
349 return Year
% 4 == 0 && (Year
% 100 != 0 || Year
% 400 == 0) ? 1 : 0;
352 /***********************************************************************
353 * NTDLL_get_server_timeout
355 * Convert a NTDLL timeout into a timeval struct to send to the server.
357 void NTDLL_get_server_timeout( abs_time_t
*when
, const LARGE_INTEGER
*timeout
)
361 if (!timeout
) /* infinite timeout */
363 when
->sec
= when
->usec
= 0;
365 else if (timeout
->QuadPart
<= 0) /* relative timeout */
369 if (-timeout
->QuadPart
> (LONGLONG
)INT_MAX
* TICKSPERSEC
)
370 when
->sec
= when
->usec
= INT_MAX
;
373 ULONG sec
= RtlEnlargedUnsignedDivide( -timeout
->QuadPart
, TICKSPERSEC
, &remainder
);
374 gettimeofday( &tv
, 0 );
375 when
->sec
= tv
.tv_sec
+ sec
;
376 if ((when
->usec
= tv
.tv_usec
+ (remainder
/ 10)) >= 1000000)
378 when
->usec
-= 1000000;
381 if (when
->sec
< tv
.tv_sec
) /* overflow */
382 when
->sec
= when
->usec
= INT_MAX
;
385 else /* absolute time */
387 if (timeout
->QuadPart
< TICKS_1601_TO_1970
)
388 when
->sec
= when
->usec
= 0;
389 else if (timeout
->QuadPart
> TICKS_1601_TO_UNIX_MAX
)
390 when
->sec
= when
->usec
= INT_MAX
;
393 when
->sec
= RtlEnlargedUnsignedDivide( timeout
->QuadPart
- TICKS_1601_TO_1970
,
394 TICKSPERSEC
, &remainder
);
395 when
->usec
= remainder
/ 10;
401 /******************************************************************************
402 * RtlTimeToTimeFields [NTDLL.@]
404 * Convert a time into a TIME_FIELDS structure.
407 * liTime [I] Time to convert.
408 * TimeFields [O] Destination for the converted time.
413 VOID WINAPI
RtlTimeToTimeFields(
414 const LARGE_INTEGER
*liTime
,
415 PTIME_FIELDS TimeFields
)
418 long int cleaps
, years
, yearday
, months
;
422 /* Extract millisecond from time and convert time into seconds */
423 TimeFields
->Milliseconds
=
424 (CSHORT
) (( liTime
->QuadPart
% TICKSPERSEC
) / TICKSPERMSEC
);
425 Time
= liTime
->QuadPart
/ TICKSPERSEC
;
427 /* The native version of RtlTimeToTimeFields does not take leap seconds
430 /* Split the time into days and seconds within the day */
431 Days
= Time
/ SECSPERDAY
;
432 SecondsInDay
= Time
% SECSPERDAY
;
434 /* compute time of day */
435 TimeFields
->Hour
= (CSHORT
) (SecondsInDay
/ SECSPERHOUR
);
436 SecondsInDay
= SecondsInDay
% SECSPERHOUR
;
437 TimeFields
->Minute
= (CSHORT
) (SecondsInDay
/ SECSPERMIN
);
438 TimeFields
->Second
= (CSHORT
) (SecondsInDay
% SECSPERMIN
);
440 /* compute day of week */
441 TimeFields
->Weekday
= (CSHORT
) ((EPOCHWEEKDAY
+ Days
) % DAYSPERWEEK
);
443 /* compute year, month and day of month. */
444 cleaps
=( 3 * ((4 * Days
+ 1227) / DAYSPERQUADRICENTENNIUM
) + 3 ) / 4;
445 Days
+= 28188 + cleaps
;
446 years
= (20 * Days
- 2442) / (5 * DAYSPERNORMALQUADRENNIUM
);
447 yearday
= Days
- (years
* DAYSPERNORMALQUADRENNIUM
)/4;
448 months
= (64 * yearday
) / 1959;
449 /* the result is based on a year starting on March.
450 * To convert take 12 from Januari and Februari and
451 * increase the year by one. */
453 TimeFields
->Month
= months
- 1;
454 TimeFields
->Year
= years
+ 1524;
456 TimeFields
->Month
= months
- 13;
457 TimeFields
->Year
= years
+ 1525;
459 /* calculation of day of month is based on the wonderful
460 * sequence of INT( n * 30.6): it reproduces the
461 * 31-30-31-30-31-31 month lengths exactly for small n's */
462 TimeFields
->Day
= yearday
- (1959 * months
) / 64 ;
466 /******************************************************************************
467 * RtlTimeFieldsToTime [NTDLL.@]
469 * Convert a TIME_FIELDS structure into a time.
472 * ftTimeFields [I] TIME_FIELDS structure to convert.
473 * Time [O] Destination for the converted time.
479 BOOLEAN WINAPI
RtlTimeFieldsToTime(
480 PTIME_FIELDS tfTimeFields
,
483 int month
, year
, cleaps
, day
;
485 /* FIXME: normalize the TIME_FIELDS structure here */
486 /* No, native just returns 0 (error) if the fields are not */
487 if( tfTimeFields
->Milliseconds
< 0 || tfTimeFields
->Milliseconds
> 999 ||
488 tfTimeFields
->Second
< 0 || tfTimeFields
->Second
> 59 ||
489 tfTimeFields
->Minute
< 0 || tfTimeFields
->Minute
> 59 ||
490 tfTimeFields
->Hour
< 0 || tfTimeFields
->Hour
> 23 ||
491 tfTimeFields
->Month
< 1 || tfTimeFields
->Month
> 12 ||
492 tfTimeFields
->Day
< 1 ||
493 tfTimeFields
->Day
> MonthLengths
494 [ tfTimeFields
->Month
==2 || IsLeapYear(tfTimeFields
->Year
)]
495 [ tfTimeFields
->Month
- 1] ||
496 tfTimeFields
->Year
< 1601 )
499 /* now calculate a day count from the date
500 * First start counting years from March. This way the leap days
501 * are added at the end of the year, not somewhere in the middle.
502 * Formula's become so much less complicate that way.
503 * To convert: add 12 to the month numbers of Jan and Feb, and
504 * take 1 from the year */
505 if(tfTimeFields
->Month
< 3) {
506 month
= tfTimeFields
->Month
+ 13;
507 year
= tfTimeFields
->Year
- 1;
509 month
= tfTimeFields
->Month
+ 1;
510 year
= tfTimeFields
->Year
;
512 cleaps
= (3 * (year
/ 100) + 3) / 4; /* nr of "century leap years"*/
513 day
= (36525 * year
) / 100 - cleaps
+ /* year * dayperyr, corrected */
514 (1959 * month
) / 64 + /* months * daypermonth */
515 tfTimeFields
->Day
- /* day of the month */
516 584817 ; /* zero that on 1601-01-01 */
519 Time
->QuadPart
= (((((LONGLONG
) day
* HOURSPERDAY
+
520 tfTimeFields
->Hour
) * MINSPERHOUR
+
521 tfTimeFields
->Minute
) * SECSPERMIN
+
522 tfTimeFields
->Second
) * 1000 +
523 tfTimeFields
->Milliseconds
) * TICKSPERMSEC
;
528 /***********************************************************************
529 * TIME_GetBias [internal]
531 * Helper function calculates delta local time from UTC.
534 * utc [I] The current utc time.
535 * pdaylight [I] Local daylight.
538 * The bias for the current timezone.
540 static int TIME_GetBias(time_t utc
, int *pdaylight
)
543 static time_t last_utc
;
544 static int last_bias
;
545 static int last_daylight
;
548 RtlEnterCriticalSection( &TIME_GetBias_section
);
551 *pdaylight
= last_daylight
;
555 ptm
= localtime(&utc
);
556 *pdaylight
= last_daylight
=
557 ptm
->tm_isdst
; /* daylight for local timezone */
559 ptm
->tm_isdst
= *pdaylight
; /* use local daylight, not that of Greenwich */
561 ret
= last_bias
= (int)(utc
-mktime(ptm
));
563 RtlLeaveCriticalSection( &TIME_GetBias_section
);
567 /******************************************************************************
568 * RtlLocalTimeToSystemTime [NTDLL.@]
570 * Convert a local time into system time.
573 * LocalTime [I] Local time to convert.
574 * SystemTime [O] Destination for the converted time.
577 * Success: STATUS_SUCCESS.
578 * Failure: An NTSTATUS error code indicating the problem.
580 NTSTATUS WINAPI
RtlLocalTimeToSystemTime( const LARGE_INTEGER
*LocalTime
,
581 PLARGE_INTEGER SystemTime
)
586 TRACE("(%p, %p)\n", LocalTime
, SystemTime
);
589 bias
= TIME_GetBias(gmt
, &daylight
);
591 SystemTime
->QuadPart
= LocalTime
->QuadPart
- bias
* (LONGLONG
)10000000;
592 return STATUS_SUCCESS
;
595 /******************************************************************************
596 * RtlSystemTimeToLocalTime [NTDLL.@]
598 * Convert a system time into a local time.
601 * SystemTime [I] System time to convert.
602 * LocalTime [O] Destination for the converted time.
605 * Success: STATUS_SUCCESS.
606 * Failure: An NTSTATUS error code indicating the problem.
608 NTSTATUS WINAPI
RtlSystemTimeToLocalTime( const LARGE_INTEGER
*SystemTime
,
609 PLARGE_INTEGER LocalTime
)
614 TRACE("(%p, %p)\n", SystemTime
, LocalTime
);
617 bias
= TIME_GetBias(gmt
, &daylight
);
619 LocalTime
->QuadPart
= SystemTime
->QuadPart
+ bias
* (LONGLONG
)10000000;
620 return STATUS_SUCCESS
;
623 /******************************************************************************
624 * RtlTimeToSecondsSince1970 [NTDLL.@]
626 * Convert a time into a count of seconds since 1970.
629 * Time [I] Time to convert.
630 * Seconds [O] Destination for the converted time.
634 * Failure: FALSE, if the resulting value will not fit in a DWORD.
636 BOOLEAN WINAPI
RtlTimeToSecondsSince1970( const LARGE_INTEGER
*Time
, LPDWORD Seconds
)
638 ULONGLONG tmp
= ((ULONGLONG
)Time
->u
.HighPart
<< 32) | Time
->u
.LowPart
;
639 tmp
= RtlLargeIntegerDivide( tmp
, 10000000, NULL
);
640 tmp
-= SECS_1601_TO_1970
;
641 if (tmp
> 0xffffffff) return FALSE
;
642 *Seconds
= (DWORD
)tmp
;
646 /******************************************************************************
647 * RtlTimeToSecondsSince1980 [NTDLL.@]
649 * Convert a time into a count of seconds since 1980.
652 * Time [I] Time to convert.
653 * Seconds [O] Destination for the converted time.
657 * Failure: FALSE, if the resulting value will not fit in a DWORD.
659 BOOLEAN WINAPI
RtlTimeToSecondsSince1980( const LARGE_INTEGER
*Time
, LPDWORD Seconds
)
661 ULONGLONG tmp
= ((ULONGLONG
)Time
->u
.HighPart
<< 32) | Time
->u
.LowPart
;
662 tmp
= RtlLargeIntegerDivide( tmp
, 10000000, NULL
);
663 tmp
-= SECS_1601_TO_1980
;
664 if (tmp
> 0xffffffff) return FALSE
;
665 *Seconds
= (DWORD
)tmp
;
669 /******************************************************************************
670 * RtlSecondsSince1970ToTime [NTDLL.@]
672 * Convert a count of seconds since 1970 to a time.
675 * Seconds [I] Time to convert.
676 * Time [O] Destination for the converted time.
681 void WINAPI
RtlSecondsSince1970ToTime( DWORD Seconds
, LARGE_INTEGER
*Time
)
683 ULONGLONG secs
= Seconds
* (ULONGLONG
)TICKSPERSEC
+ TICKS_1601_TO_1970
;
684 Time
->u
.LowPart
= (DWORD
)secs
;
685 Time
->u
.HighPart
= (DWORD
)(secs
>> 32);
688 /******************************************************************************
689 * RtlSecondsSince1980ToTime [NTDLL.@]
691 * Convert a count of seconds since 1980 to a time.
694 * Seconds [I] Time to convert.
695 * Time [O] Destination for the converted time.
700 void WINAPI
RtlSecondsSince1980ToTime( DWORD Seconds
, LARGE_INTEGER
*Time
)
702 ULONGLONG secs
= Seconds
* (ULONGLONG
)TICKSPERSEC
+ TICKS_1601_TO_1980
;
703 Time
->u
.LowPart
= (DWORD
)secs
;
704 Time
->u
.HighPart
= (DWORD
)(secs
>> 32);
707 /******************************************************************************
708 * RtlTimeToElapsedTimeFields [NTDLL.@]
710 * Convert a time to a count of elapsed seconds.
713 * Time [I] Time to convert.
714 * TimeFields [O] Destination for the converted time.
719 void WINAPI
RtlTimeToElapsedTimeFields( const LARGE_INTEGER
*Time
, PTIME_FIELDS TimeFields
)
724 time
= RtlExtendedLargeIntegerDivide( Time
->QuadPart
, TICKSPERSEC
, &rem
);
725 TimeFields
->Milliseconds
= rem
/ TICKSPERMSEC
;
727 /* time is now in seconds */
728 TimeFields
->Year
= 0;
729 TimeFields
->Month
= 0;
730 TimeFields
->Day
= RtlExtendedLargeIntegerDivide( time
, SECSPERDAY
, &rem
);
732 /* rem is now the remaining seconds in the last day */
733 TimeFields
->Second
= rem
% 60;
735 TimeFields
->Minute
= rem
% 60;
736 TimeFields
->Hour
= rem
/ 60;
739 /***********************************************************************
740 * NtQuerySystemTime [NTDLL.@]
741 * ZwQuerySystemTime [NTDLL.@]
743 * Get the current system time.
746 * Time [O] Destination for the current system time.
749 * Success: STATUS_SUCCESS.
750 * Failure: An NTSTATUS error code indicating the problem.
752 NTSTATUS WINAPI
NtQuerySystemTime( PLARGE_INTEGER Time
)
756 gettimeofday( &now
, 0 );
757 Time
->QuadPart
= now
.tv_sec
* (ULONGLONG
)TICKSPERSEC
+ TICKS_1601_TO_1970
;
758 Time
->QuadPart
+= now
.tv_usec
* 10;
759 return STATUS_SUCCESS
;
762 /***********************************************************************
763 * TIME_GetTZAsStr [internal]
765 * Helper function that returns the given timezone as a string.
768 * utc [I] The current utc time.
769 * bias [I] The bias of the current timezone.
776 * This could be done with a hash table instead of merely iterating through a
777 * table, however with the small amount of entries (60 or so) I didn't think
780 static const WCHAR
* TIME_GetTZAsStr (time_t utc
, int bias
, int dst
)
783 struct tm
*ptm
= localtime(&utc
);
786 if (!strftime (psTZName
, 7, "%Z", ptm
))
789 for (i
=0; i
<(sizeof(TZ_INFO
) / sizeof(struct tagTZ_INFO
)); i
++)
791 if ( strcmp(TZ_INFO
[i
].psTZFromUnix
, psTZName
) == 0 &&
792 TZ_INFO
[i
].bias
== bias
&&
793 TZ_INFO
[i
].dst
== dst
795 return TZ_INFO
[i
].psTZWindows
;
797 FIXME("Can't match system time zone name \"%s\" to an entry in TZ_INFO\n",psTZName
);
798 FIXME(" Please add appropriate entry to TZ_INFO and submit as patch to wine-patches\n");
802 /*** TIME_GetTimeZoneInfoFromReg: helper for GetTimeZoneInformation ***/
805 static int TIME_GetTimeZoneInfoFromReg(LPTIME_ZONE_INFORMATION tzinfo
)
808 KEY_VALUE_PARTIAL_INFORMATION
* KpInfo
=
809 (KEY_VALUE_PARTIAL_INFORMATION
*) buf
;
812 OBJECT_ATTRIBUTES attr
;
813 UNICODE_STRING nameW
;
815 attr
.Length
= sizeof(attr
);
816 attr
.RootDirectory
= 0;
817 attr
.ObjectName
= &nameW
;
819 attr
.SecurityDescriptor
= NULL
;
820 attr
.SecurityQualityOfService
= NULL
;
821 RtlInitUnicodeString( &nameW
, TZInformationKeyW
);
822 if (!NtOpenKey( &hkey
, KEY_ALL_ACCESS
, &attr
)) {
824 #define GTZIFR_N( valkey, tofield) \
825 RtlInitUnicodeString( &nameW, valkey );\
826 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, KpInfo,\
827 sizeof(buf), &size )) { \
828 if( size >= (sizeof((tofield)) + \
829 offsetof(KEY_VALUE_PARTIAL_INFORMATION,Data))); { \
831 KpInfo->Data, sizeof(tofield)); \
834 #define GTZIFR_S( valkey, tofield) \
835 RtlInitUnicodeString( &nameW, valkey );\
836 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, KpInfo,\
837 sizeof(buf), &size )) { \
838 strncpyW( tofield, (WCHAR*) KpInfo->Data, \
839 sizeof( tofield) / sizeof(WCHAR) ); \
842 GTZIFR_N( TZStandardStartW
, tzinfo
->StandardDate
)
843 GTZIFR_N( TZDaylightStartW
, tzinfo
->DaylightDate
)
844 GTZIFR_N( TZBiasW
, tzinfo
->Bias
)
845 GTZIFR_N( TZStandardBiasW
, tzinfo
->StandardBias
)
846 GTZIFR_N( TZDaylightBiasW
, tzinfo
->DaylightBias
)
847 GTZIFR_S( TZStandardNameW
, tzinfo
->StandardName
)
848 GTZIFR_S( TZDaylightNameW
, tzinfo
->DaylightName
)
858 /***********************************************************************
859 * RtlQueryTimeZoneInformation [NTDLL.@]
861 * Get information about the current timezone.
864 * tzinfo [O] Destination for the retrieved timezone info.
867 * Success: STATUS_SUCCESS.
868 * Failure: An NTSTATUS error code indicating the problem.
870 NTSTATUS WINAPI
RtlQueryTimeZoneInformation(LPTIME_ZONE_INFORMATION tzinfo
)
876 memset(tzinfo
, 0, sizeof(TIME_ZONE_INFORMATION
));
878 if( !TIME_GetTimeZoneInfoFromReg(tzinfo
)) {
881 bias
= TIME_GetBias(gmt
, &daylight
);
883 tzinfo
->Bias
= -bias
/ 60;
884 tzinfo
->StandardBias
= 0;
885 tzinfo
->DaylightBias
= -60;
886 tzinfo
->StandardName
[0]='\0';
887 tzinfo
->DaylightName
[0]='\0';
888 psTZ
= TIME_GetTZAsStr (gmt
, (-bias
/60), daylight
);
889 if (psTZ
) strcpyW( tzinfo
->StandardName
, psTZ
);
891 return STATUS_SUCCESS
;
894 /***********************************************************************
895 * RtlSetTimeZoneInformation [NTDLL.@]
897 * Set the current time zone information.
900 * tzinfo [I] Timezone information to set.
903 * Success: STATUS_SUCCESS.
904 * Failure: An NTSTATUS error code indicating the problem.
907 * Uses the obsolete unix timezone structure and tz_dsttime member.
909 NTSTATUS WINAPI
RtlSetTimeZoneInformation( const TIME_ZONE_INFORMATION
*tzinfo
)
911 #ifdef HAVE_SETTIMEOFDAY
914 tz
.tz_minuteswest
= tzinfo
->Bias
;
916 tz
.tz_dsttime
= DST_NONE
;
920 if(!settimeofday(NULL
, &tz
))
921 return STATUS_SUCCESS
;
923 return STATUS_PRIVILEGE_NOT_HELD
;
926 /***********************************************************************
927 * NtSetSystemTime [NTDLL.@]
928 * ZwSetSystemTime [NTDLL.@]
930 * Set the system time.
933 * NewTime [I] The time to set.
934 * OldTime [O] Optional destination for the previous system time.
937 * Success: STATUS_SUCCESS.
938 * Failure: An NTSTATUS error code indicating the problem.
940 NTSTATUS WINAPI
NtSetSystemTime(const LARGE_INTEGER
*NewTime
, LARGE_INTEGER
*OldTime
)
950 /* Return the old time if necessary */
952 NtQuerySystemTime(OldTime
);
954 RtlTimeToTimeFields(NewTime
, &tf
);
956 /* call gettimeofday to get the current timezone */
957 gettimeofday(&tv
, &tz
);
959 /* get delta local time from utc */
960 bias
= TIME_GetBias(oldsec
, &dst
);
962 /* get the number of seconds */
963 t
.tm_sec
= tf
.Second
;
964 t
.tm_min
= tf
.Minute
;
967 t
.tm_mon
= tf
.Month
- 1;
968 t
.tm_year
= tf
.Year
- 1900;
971 /* correct for timezone and daylight */
974 /* set the new time */
976 tv
.tv_usec
= tf
.Milliseconds
* 1000;
978 /* error and sanity check*/
979 if(sec
== (time_t)-1 || abs((int)(sec
-oldsec
)) > SETTIME_MAX_ADJUST
) {
982 #ifdef HAVE_SETTIMEOFDAY
983 err
= settimeofday(&tv
, NULL
); /* 0 is OK, -1 is error */
985 return STATUS_SUCCESS
;
991 ERR("Cannot set time to %d/%d/%d %d:%d:%d Time adjustment %ld %s\n",
992 tf
.Year
, tf
.Month
, tf
.Day
, tf
.Hour
, tf
.Minute
, tf
.Second
,
994 err
== -1 ? "No Permission"
995 : sec
== (time_t)-1 ? "" : "is too large." );
998 return STATUS_INVALID_PARAMETER
;
1000 return STATUS_PRIVILEGE_NOT_HELD
;
1002 return STATUS_NOT_IMPLEMENTED
;