author | William Roberts <williamr@symbian.org> |
Thu, 22 Jul 2010 16:48:56 +0100 | |
branch | GCC_SURGE |
changeset 45 | 4b03adbd26ca |
parent 18 | 47c74d1534e1 |
parent 34 | 5fae379060a7 |
permissions | -rw-r--r-- |
31 | 1 |
/* |
34
5fae379060a7
Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
31
diff
changeset
|
2 |
** This file is in the public domain, so clarified as of |
5fae379060a7
Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
31
diff
changeset
|
3 |
** 1996-06-05 by Arthur David Olson (arthur_david_olson@nih.gov). |
5fae379060a7
Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
31
diff
changeset
|
4 |
|
5fae379060a7
Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
31
diff
changeset
|
5 |
** © Portions Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. |
31 | 6 |
*/ |
7 |
||
8 |
#include <sys/cdefs.h> |
|
9 |
#ifndef lint |
|
10 |
#ifndef NOID |
|
11 |
static char elsieid[] __unused = "@(#)localtime.c 7.78"; |
|
12 |
#endif /* !defined NOID */ |
|
13 |
#endif /* !defined lint */ |
|
14 |
__FBSDID("$FreeBSD: src/lib/libc/stdtime/localtime.c,v 1.40 2004/08/24 00:15:37 peter Exp $"); |
|
15 |
||
16 |
/* |
|
17 |
** Leap second handling from Bradley White (bww@k.gp.cs.cmu.edu). |
|
18 |
** POSIX-style TZ environment variable handling from Guy Harris |
|
19 |
** (guy@auspex.com). |
|
20 |
*/ |
|
21 |
#include <time.h> |
|
22 |
||
23 |
/*LINTLIBRARY*/ |
|
24 |
#include <unistd.h> |
|
25 |
#include "namespace.h" |
|
26 |
#include <sys/types.h> |
|
27 |
#include <pthread.h> |
|
28 |
#include "private.h" |
|
29 |
#include "un-namespace.h" |
|
30 |
#include "tzfile.h" |
|
31 |
#include <fcntl.h> |
|
32 |
#include <sys/stat.h> |
|
33 |
#include "libc_private.h" |
|
34 |
#include "common_def.h" |
|
35 |
#include <wchar.h> |
|
36 |
#include "timefuncs.h" |
|
37 |
||
38 |
#if (defined(__SYMBIAN32__) && (defined(__WINSCW__) || defined(__WINS__))) |
|
39 |
#include "libc_wsd_defs.h" |
|
40 |
#endif |
|
41 |
||
42 |
#define _MUTEX_LOCK(x) if (__isthreaded) _pthread_mutex_lock(x) |
|
43 |
#define _MUTEX_UNLOCK(x) if (__isthreaded) _pthread_mutex_unlock(x) |
|
44 |
||
45 |
/* |
|
46 |
** SunOS 4.1.1 headers lack O_BINARY. |
|
47 |
*/ |
|
48 |
||
49 |
#ifdef O_BINARY |
|
50 |
#define OPEN_MODE (O_RDONLY | O_BINARY) |
|
51 |
#endif /* defined O_BINARY */ |
|
52 |
#ifndef O_BINARY |
|
53 |
#define OPEN_MODE O_RDONLY |
|
54 |
#endif /* !defined O_BINARY */ |
|
55 |
||
56 |
#ifndef WILDABBR |
|
57 |
/* |
|
58 |
** Someone might make incorrect use of a time zone abbreviation: |
|
59 |
** 1. They might reference tzname[0] before calling tzset (explicitly |
|
60 |
** or implicitly). |
|
61 |
** 2. They might reference tzname[1] before calling tzset (explicitly |
|
62 |
** or implicitly). |
|
63 |
** 3. They might reference tzname[1] after setting to a time zone |
|
64 |
** in which Daylight Saving Time is never observed. |
|
65 |
** 4. They might reference tzname[0] after setting to a time zone |
|
66 |
** in which Standard Time is never observed. |
|
67 |
** 5. They might reference tm.TM_ZONE after calling offtime. |
|
68 |
** What's best to do in the above cases is open to debate; |
|
69 |
** for now, we just set things up so that in any of the five cases |
|
70 |
** WILDABBR is used. Another possibility: initialize tzname[0] to the |
|
71 |
** string "tzname[0] used before set", and similarly for the other cases. |
|
72 |
** And another: initialize tzname[0] to "ERA", with an explanation in the |
|
73 |
** manual page of what this "time zone abbreviation" means (doing this so |
|
74 |
** that tzname[0] has the "normal" length of three characters). |
|
75 |
*/ |
|
76 |
#define WILDABBR " " |
|
77 |
#endif /* !defined WILDABBR */ |
|
78 |
||
79 |
#ifdef __SYMBIAN32__ |
|
80 |
extern int GetStdOffset(void); |
|
81 |
extern int GetIsDst(void); |
|
82 |
#endif //__SYMBIAN32__ |
|
83 |
||
84 |
#ifdef __SYMBIAN32__ |
|
85 |
#ifndef EMULATOR |
|
86 |
||
87 |
static char wildabbr[] = "WILDABBR"; |
|
88 |
#else //EMULATOR |
|
89 |
||
90 |
GET_STATIC_ARRAY_FROM_TLS(wildabbr, char) |
|
91 |
#define wildabbr (GET_WSD_VAR_NAME(wildabbr, s)()) |
|
92 |
#endif //EMULATOR |
|
93 |
#else |
|
94 |
static char wildabbr[] = "WILDABBR"; |
|
95 |
#endif //__SYMBIAN32__ |
|
96 |
||
97 |
/* |
|
98 |
* In June 2004 it was decided UTC was a more appropriate default time |
|
99 |
* zone than GMT. |
|
100 |
*/ |
|
101 |
||
102 |
#ifdef __SYMBIAN32__ |
|
103 |
#if !(defined(EMULATOR)) |
|
104 |
static const char gmt[] = "UTC"; |
|
105 |
#endif //EMULATOR |
|
106 |
#else |
|
107 |
static const char gmt[] = "UTC"; |
|
108 |
#endif //__SYMBIAN32__ |
|
109 |
||
110 |
/* |
|
111 |
** The DST rules to use if TZ has no rules and we can't load TZDEFRULES. |
|
112 |
** We default to US rules as of 1999-08-17. |
|
113 |
** POSIX 1003.1 section 8.1.1 says that the default DST rules are |
|
114 |
** implementation dependent; for historical reasons, US rules are a |
|
115 |
** common default. |
|
116 |
*/ |
|
117 |
#ifndef TZDEFRULESTRING |
|
118 |
#define TZDEFRULESTRING ",M4.1.0,M10.5.0" |
|
119 |
#endif /* !defined TZDEFDST */ |
|
120 |
||
121 |
#ifdef __SYMBIAN32__ |
|
122 |
#ifndef EMULATOR |
|
123 |
struct ttinfo { /* time type information */ |
|
124 |
long tt_gmtoff; /* UTC offset in seconds */ |
|
125 |
int tt_isdst; /* used to set tm_isdst */ |
|
126 |
int tt_abbrind; /* abbreviation list index */ |
|
127 |
int tt_ttisstd; /* TRUE if transition is std time */ |
|
128 |
int tt_ttisgmt; /* TRUE if transition is UTC */ |
|
129 |
}; |
|
130 |
||
131 |
struct lsinfo { /* leap second information */ |
|
132 |
time_t ls_trans; /* transition time */ |
|
133 |
long ls_corr; /* correction to apply */ |
|
134 |
}; |
|
135 |
#endif //EMULATOR |
|
136 |
#else |
|
137 |
struct ttinfo { /* time type information */ |
|
138 |
long tt_gmtoff; /* UTC offset in seconds */ |
|
139 |
int tt_isdst; /* used to set tm_isdst */ |
|
140 |
int tt_abbrind; /* abbreviation list index */ |
|
141 |
int tt_ttisstd; /* TRUE if transition is std time */ |
|
142 |
int tt_ttisgmt; /* TRUE if transition is UTC */ |
|
143 |
}; |
|
144 |
||
145 |
struct lsinfo { /* leap second information */ |
|
146 |
time_t ls_trans; /* transition time */ |
|
147 |
long ls_corr; /* correction to apply */ |
|
148 |
}; |
|
149 |
#endif //__SYMBIAN32__ |
|
150 |
||
151 |
#define BIGGEST(a, b) (((a) > (b)) ? (a) : (b)) |
|
152 |
||
153 |
#ifdef TZNAME_MAX |
|
154 |
#define MY_TZNAME_MAX TZNAME_MAX |
|
155 |
#endif /* defined TZNAME_MAX */ |
|
156 |
#ifndef TZNAME_MAX |
|
157 |
#define MY_TZNAME_MAX 255 |
|
158 |
#endif /* !defined TZNAME_MAX */ |
|
159 |
||
160 |
#ifdef __SYMBIAN32__ |
|
161 |
#ifndef EMULATOR |
|
162 |
struct state { |
|
163 |
int leapcnt; |
|
164 |
int timecnt; |
|
165 |
int typecnt; |
|
166 |
int charcnt; |
|
167 |
time_t ats[TZ_MAX_TIMES]; |
|
168 |
unsigned char types[TZ_MAX_TIMES]; |
|
169 |
struct ttinfo ttis[TZ_MAX_TYPES]; |
|
170 |
char chars[BIGGEST(BIGGEST(TZ_MAX_CHARS + 1, sizeof gmt), |
|
171 |
(2 * (MY_TZNAME_MAX + 1)))]; |
|
172 |
struct lsinfo lsis[TZ_MAX_LEAPS]; |
|
173 |
}; |
|
174 |
#endif //EMULATOR |
|
175 |
#else |
|
176 |
struct state { |
|
177 |
int leapcnt; |
|
178 |
int timecnt; |
|
179 |
int typecnt; |
|
180 |
int charcnt; |
|
181 |
time_t ats[TZ_MAX_TIMES]; |
|
182 |
unsigned char types[TZ_MAX_TIMES]; |
|
183 |
struct ttinfo ttis[TZ_MAX_TYPES]; |
|
184 |
char chars[BIGGEST(BIGGEST(TZ_MAX_CHARS + 1, sizeof gmt), |
|
185 |
(2 * (MY_TZNAME_MAX + 1)))]; |
|
186 |
struct lsinfo lsis[TZ_MAX_LEAPS]; |
|
187 |
}; |
|
188 |
#endif //__SYMBIAN32__ |
|
189 |
||
190 |
struct rule { |
|
191 |
int r_type; /* type of rule--see below */ |
|
192 |
int r_day; /* day number of rule */ |
|
193 |
int r_week; /* week number of rule */ |
|
194 |
int r_mon; /* month number of rule */ |
|
195 |
long r_time; /* transition time of rule */ |
|
196 |
}; |
|
197 |
||
198 |
#define JULIAN_DAY 0 /* Jn - Julian day */ |
|
199 |
#define DAY_OF_YEAR 1 /* n - day of year */ |
|
200 |
#define MONTH_NTH_DAY_OF_WEEK 2 /* Mm.n.d - month, week, day of week */ |
|
201 |
||
202 |
/* |
|
203 |
** Prototypes for static functions. |
|
204 |
*/ |
|
205 |
||
206 |
#ifndef __SYMBIAN32__ |
|
207 |
static long detzcode(const char * codep); |
|
208 |
#endif //__SYMBIAN32__ |
|
209 |
static const char * getzname(const char * strp); |
|
210 |
static const char * getnum(const char * strp, int * nump, int min, |
|
211 |
int max); |
|
212 |
static const char * getsecs(const char * strp, long * secsp); |
|
213 |
static const char * getoffset(const char * strp, long * offsetp); |
|
214 |
static const char * getrule(const char * strp, struct rule * rulep); |
|
215 |
static void gmtload(struct state * sp); |
|
216 |
static void gmtsub(const time_t * timep, long offset, |
|
217 |
struct tm * tmp); |
|
218 |
static void localsub(const time_t * timep, long offset, |
|
219 |
struct tm * tmp); |
|
220 |
static int increment_overflow(int * number, int delta); |
|
221 |
static int normalize_overflow(int * tensptr, int * unitsptr, |
|
222 |
int base); |
|
223 |
static void settzname(void); |
|
224 |
static time_t time1(struct tm * tmp, |
|
225 |
void(*funcp) (const time_t *, |
|
226 |
long, struct tm *), |
|
227 |
long offset); |
|
228 |
static time_t time2(struct tm *tmp, |
|
229 |
void(*funcp) (const time_t *, |
|
230 |
long, struct tm*), |
|
231 |
long offset, int * okayp); |
|
232 |
static time_t time2sub(struct tm *tmp, |
|
233 |
void(*funcp) (const time_t *, |
|
234 |
long, struct tm*), |
|
235 |
long offset, int * okayp, int do_norm_secs); |
|
236 |
static void timesub(const time_t * timep, long offset, |
|
237 |
const struct state * sp, struct tm * tmp); |
|
238 |
static int tmcomp(const struct tm * atmp, |
|
239 |
const struct tm * btmp); |
|
240 |
static time_t transtime(time_t janfirst, int year, |
|
241 |
const struct rule * rulep, long offset); |
|
242 |
static int tzload(const char * name, struct state * sp); |
|
243 |
static int tzparse(const char * name, struct state * sp, |
|
244 |
int lastditch); |
|
245 |
||
246 |
#ifdef ALL_STATE |
|
247 |
||
248 |
#ifdef __SYMBIAN32__ |
|
249 |
#ifndef EMULATOR |
|
250 |
||
251 |
static struct state * lclptr; |
|
252 |
static struct state * gmtptr; |
|
253 |
#else //EMULATOR |
|
254 |
||
255 |
GET_STATIC_VAR_FROM_TLS(lclptr, state *) |
|
256 |
GET_STATIC_VAR_FROM_TLS(gmtptr, state *) |
|
257 |
||
258 |
#define lclptr (*GET_WSD_VAR_NAME(lclptr, s)()) |
|
259 |
#define gmtptr (*GET_WSD_VAR_NAME(gmtptr, s)()) |
|
260 |
#endif //EMULATOR |
|
261 |
#else //__SYMBIAN32__ |
|
262 |
static struct state * lclptr; |
|
263 |
static struct state * gmtptr; |
|
264 |
#endif //__SYMBIAN32__ |
|
265 |
||
266 |
#endif /* defined ALL_STATE */ |
|
267 |
||
268 |
#ifndef ALL_STATE |
|
269 |
||
270 |
#ifdef __SYMBIAN32__ |
|
271 |
#ifndef EMULATOR |
|
272 |
||
273 |
static struct state lclmem; |
|
274 |
static struct state gmtmem; |
|
275 |
#else //EMULATOR |
|
276 |
||
277 |
GET_STATIC_VAR_FROM_TLS(lclmem, struct state) |
|
278 |
GET_STATIC_VAR_FROM_TLS(gmtmem, struct state) |
|
279 |
#define lclmem (*GET_WSD_VAR_NAME(lclmem, s)()) |
|
280 |
#define gmtmem (*GET_WSD_VAR_NAME(gmtmem, s)()) |
|
281 |
#endif //EMULATOR |
|
282 |
#else //__SYMBIAN32__ |
|
283 |
static struct state lclmem; |
|
284 |
static struct state gmtmem; |
|
285 |
#endif //__SYMBIAN32__ |
|
286 |
||
287 |
#define lclptr (&lclmem) |
|
288 |
#define gmtptr (&gmtmem) |
|
289 |
#endif /* State Farm */ |
|
290 |
||
291 |
#ifndef TZ_STRLEN_MAX |
|
292 |
#define TZ_STRLEN_MAX 255 |
|
293 |
#endif /* !defined TZ_STRLEN_MAX */ |
|
294 |
||
295 |
#ifdef __SYMBIAN32__ |
|
296 |
#ifndef EMULATOR |
|
297 |
||
298 |
static char lcl_TZname[TZ_STRLEN_MAX + 1]; |
|
299 |
static int lcl_is_set; |
|
300 |
static int gmt_is_set; |
|
301 |
static pthread_mutex_t lcl_mutex = PTHREAD_MUTEX_INITIALIZER; |
|
302 |
static pthread_mutex_t gmt_mutex = PTHREAD_MUTEX_INITIALIZER; |
|
303 |
||
304 |
char **_tzname = NULL; |
|
305 |
#else //EMULATOR |
|
306 |
||
307 |
GET_STATIC_ARRAY_FROM_TLS(lcl_TZname, char) |
|
308 |
GET_STATIC_VAR_FROM_TLS(lcl_is_set, int) |
|
309 |
GET_STATIC_VAR_FROM_TLS(gmt_is_set, int) |
|
310 |
GET_STATIC_VAR_FROM_TLS(lcl_mutex, pthread_mutex_t) |
|
311 |
GET_STATIC_VAR_FROM_TLS(gmt_mutex, pthread_mutex_t) |
|
312 |
||
313 |
||
314 |
#define lcl_TZname (GET_WSD_VAR_NAME(lcl_TZname, s)()) |
|
315 |
#define lcl_is_set (*GET_WSD_VAR_NAME(lcl_is_set, s)()) |
|
316 |
#define gmt_is_set (*GET_WSD_VAR_NAME(gmt_is_set, s)()) |
|
317 |
#define lcl_mutex (*GET_WSD_VAR_NAME(lcl_mutex, s)()) |
|
318 |
#define gmt_mutex (*GET_WSD_VAR_NAME(gmt_mutex, s)()) |
|
319 |
||
320 |
#endif //EMULATOR |
|
321 |
#else //__SYMBIAN32__ |
|
322 |
||
323 |
static char lcl_TZname[TZ_STRLEN_MAX + 1]; |
|
324 |
static int lcl_is_set; |
|
325 |
static int gmt_is_set; |
|
326 |
static pthread_mutex_t lcl_mutex = PTHREAD_MUTEX_INITIALIZER; |
|
327 |
static pthread_mutex_t gmt_mutex = PTHREAD_MUTEX_INITIALIZER; |
|
328 |
||
329 |
char * tzname[2] = { |
|
330 |
wildabbr, |
|
331 |
wildabbr |
|
332 |
}; |
|
333 |
#endif //__SYMBIAN32__ |
|
334 |
||
335 |
/* |
|
336 |
** Section 4.12.3 of X3.159-1989 requires that |
|
337 |
** Except for the strftime function, these functions [asctime, |
|
338 |
** ctime, gmtime, localtime] return values in one of two static |
|
339 |
** objects: a broken-down time structure and an array of char. |
|
340 |
** Thanks to Paul Eggert (eggert@twinsun.com) for noting this. |
|
341 |
*/ |
|
342 |
#ifdef __SYMBIAN32__ |
|
343 |
#ifndef EMULATOR |
|
344 |
||
345 |
struct tm stm; |
|
346 |
#else //EMULATOR |
|
347 |
||
348 |
GET_GLOBAL_VAR_FROM_TLS(stm, struct tm) |
|
349 |
#define stm (*GET_WSD_VAR_NAME(stm, g)()) |
|
350 |
#endif //EMULATOR |
|
351 |
#else //__SYMBIAN32__ |
|
352 |
static struct tm tm; |
|
353 |
#endif //__SYMBIAN32__ |
|
354 |
||
355 |
#ifdef USG_COMPAT |
|
356 |
||
357 |
#ifdef __SYMBIAN32__ |
|
358 |
#ifndef EMULATOR |
|
359 |
||
360 |
time_t timezone = 0; |
|
361 |
int daylight = 0; |
|
362 |
#else //EMULATOR |
|
363 |
||
364 |
GET_GLOBAL_VAR_FROM_TLS(timezone, time_t) |
|
365 |
GET_GLOBAL_VAR_FROM_TLS(daylight, int) |
|
366 |
||
367 |
#define timezone (*GET_WSD_VAR_NAME(timezone, g)()) |
|
368 |
#define daylight (*GET_WSD_VAR_NAME(daylight, g)()) |
|
369 |
#endif //EMULATOR |
|
370 |
#else //__SYMBIAN32__ |
|
371 |
time_t timezone = 0; |
|
372 |
int daylight = 0; |
|
373 |
#endif //__SYMBIAN32__ |
|
374 |
||
375 |
#endif /* defined USG_COMPAT */ |
|
376 |
||
377 |
#ifdef ALTZONE |
|
378 |
||
379 |
#ifdef __SYMBIAN32__ |
|
380 |
#ifndef EMULATOR |
|
381 |
||
382 |
time_t altzone = 0; |
|
383 |
#else //EMULATOR |
|
384 |
||
385 |
GET_GLOBAL_VAR_FROM_TLS(altzone, time_t) |
|
386 |
#define altzone (*GET_WSD_VAR_NAME(altzone, g)()) |
|
387 |
#endif //EMULATOR |
|
388 |
#else //__SYMBIAN32__ |
|
389 |
time_t altzone = 0; |
|
390 |
#endif //__SYMBIAN32__ |
|
391 |
||
392 |
#endif /* defined ALTZONE */ |
|
393 |
||
394 |
#ifdef __SYMBIAN32__ |
|
395 |
#ifdef EMULATOR |
|
396 |
||
397 |
GET_STATIC_VAR_FROM_TLS(localtime_key, pthread_key_t) |
|
398 |
GET_STATIC_VAR_FROM_TLS(localtime_mutex, pthread_mutex_t) |
|
399 |
GET_STATIC_VAR_FROM_TLS(gmtime_key, pthread_key_t) |
|
400 |
GET_STATIC_VAR_FROM_TLS(gmtime_mutex, pthread_mutex_t) |
|
401 |
||
402 |
#define localtime_mutex (*GET_WSD_VAR_NAME(localtime_mutex, s)()) |
|
403 |
#define localtime_key (*GET_WSD_VAR_NAME(localtime_key, s)()) |
|
404 |
#define gmtime_mutex (*GET_WSD_VAR_NAME(gmtime_mutex, s)()) |
|
405 |
#define gmtime_key (*GET_WSD_VAR_NAME(gmtime_key, s)()) |
|
406 |
||
407 |
#endif //EMULATOR |
|
408 |
#endif //__SYMBIAN32__ |
|
409 |
||
410 |
#if !defined(__SYMBIAN32__) || defined(__SYMBIAN_COMPILE_UNUSED__) |
|
411 |
static long |
|
412 |
detzcode(codep) |
|
413 |
const char * const codep; |
|
414 |
{ |
|
415 |
long result; |
|
416 |
int i; |
|
417 |
||
418 |
result = (codep[0] & 0x80) ? ~0L : 0L; |
|
419 |
for (i = 0; i < 4; ++i) |
|
420 |
result = (result << 8) | (codep[i] & 0xff); |
|
421 |
return result; |
|
422 |
} |
|
423 |
#endif //if defined(__SYMBIAN32__) || defined (__SYMBIAN_COMPILE_UNUSED__) |
|
424 |
||
425 |
static void |
|
426 |
settzname(void) |
|
427 |
{ |
|
428 |
struct state * sp = lclptr; |
|
429 |
int i; |
|
430 |
||
431 |
tzname[0] = wildabbr; |
|
432 |
tzname[1] = wildabbr; |
|
433 |
#ifdef USG_COMPAT |
|
434 |
daylight = 0; |
|
435 |
timezone = 0; |
|
436 |
#endif /* defined USG_COMPAT */ |
|
437 |
#ifdef ALTZONE |
|
438 |
altzone = 0; |
|
439 |
#endif /* defined ALTZONE */ |
|
440 |
#ifdef ALL_STATE |
|
441 |
if (sp == NULL) { |
|
442 |
tzname[0] = tzname[1] = gmt; |
|
443 |
return; |
|
444 |
} |
|
445 |
#endif /* defined ALL_STATE */ |
|
446 |
for (i = 0; i < sp->typecnt; ++i) { |
|
447 |
const struct ttinfo * const ttisp = &sp->ttis[i]; |
|
448 |
||
449 |
tzname[ttisp->tt_isdst] = |
|
450 |
&sp->chars[ttisp->tt_abbrind]; |
|
451 |
#ifdef USG_COMPAT |
|
452 |
if (ttisp->tt_isdst) |
|
453 |
daylight = 1; |
|
454 |
if (i == 0 || !ttisp->tt_isdst) |
|
455 |
timezone = -(ttisp->tt_gmtoff); |
|
456 |
#endif /* defined USG_COMPAT */ |
|
457 |
#ifdef ALTZONE |
|
458 |
if (i == 0 || ttisp->tt_isdst) |
|
459 |
altzone = -(ttisp->tt_gmtoff); |
|
460 |
#endif /* defined ALTZONE */ |
|
461 |
} |
|
462 |
/* |
|
463 |
** And to get the latest zone names into tzname. . . |
|
464 |
*/ |
|
465 |
for (i = 0; i < sp->timecnt; ++i) { |
|
466 |
const struct ttinfo * const ttisp = |
|
467 |
&sp->ttis[ |
|
468 |
sp->types[i]]; |
|
469 |
||
470 |
tzname[ttisp->tt_isdst] = |
|
471 |
&sp->chars[ttisp->tt_abbrind]; |
|
472 |
} |
|
473 |
} |
|
474 |
||
475 |
static int |
|
476 |
tzload(name, sp) |
|
477 |
const char * name; |
|
478 |
struct state * const sp; |
|
479 |
{ |
|
480 |
#ifndef __SYMBIAN32__ |
|
481 |
const char * p; |
|
482 |
int i; |
|
483 |
int fid; |
|
484 |
#else//__SYMBIAN32__ |
|
485 |
if(sp) { }//dummy implementation |
|
486 |
#endif//__SYMBIAN32__ |
|
487 |
/* XXX The following is from OpenBSD, and I'm not sure it is correct */ |
|
488 |
if (name != NULL && issetugid() != 0) |
|
489 |
if ((name[0] == ':' && name[1] == '/') || |
|
490 |
name[0] == '/' || strchr(name, '.')) |
|
491 |
name = NULL; |
|
492 |
if (name == NULL && (name = TZDEFAULT) == NULL) |
|
493 |
return -1; |
|
494 |
||
495 |
#ifdef __SYMBIAN32__ |
|
496 |
return -1; //We are doing this for the simple reason that these files |
|
497 |
//do not exist in the Symbian environment and we really dont |
|
498 |
//need to try accessing them |
|
499 |
#else //__SYMBIAN32__ |
|
500 |
||
501 |
{ |
|
502 |
int doaccess; |
|
503 |
struct stat stab; |
|
504 |
/* |
|
505 |
** Section 4.9.1 of the C standard says that |
|
506 |
** "FILENAME_MAX expands to an integral constant expression |
|
507 |
** that is the size needed for an array of char large enough |
|
508 |
** to hold the longest file name string that the implementation |
|
509 |
** guarantees can be opened." |
|
510 |
*/ |
|
511 |
char fullname[FILENAME_MAX + 1]; |
|
512 |
||
513 |
if (name[0] == ':') |
|
514 |
++name; |
|
515 |
doaccess = name[0] == '/'; |
|
516 |
if (!doaccess) { |
|
517 |
if ((p = TZDIR) == NULL) |
|
518 |
return -1; |
|
519 |
if ((strlen(p) + 1 + strlen(name) + 1) >= sizeof fullname) |
|
520 |
return -1; |
|
521 |
(void) strcpy(fullname, p); |
|
522 |
(void) strcat(fullname, "/"); |
|
523 |
(void) strcat(fullname, name); |
|
524 |
/* |
|
525 |
** Set doaccess if '.' (as in "../") shows up in name. |
|
526 |
*/ |
|
527 |
if (strchr(name, '.') != NULL) |
|
528 |
doaccess = TRUE; |
|
529 |
name = fullname; |
|
530 |
} |
|
531 |
if (doaccess && access(name, R_OK) != 0) |
|
532 |
return -1; |
|
533 |
if ((fid = _open(name, OPEN_MODE)) == -1) |
|
534 |
return -1; |
|
535 |
if ((_fstat(fid, &stab) < 0) || !S_ISREG(stab.st_mode)) { |
|
536 |
_close(fid); |
|
537 |
return -1; |
|
538 |
} |
|
539 |
} |
|
540 |
{ |
|
541 |
struct tzhead * tzhp; |
|
542 |
union { |
|
543 |
struct tzhead tzhead; |
|
544 |
char buf[sizeof *sp + sizeof *tzhp]; |
|
545 |
} u; |
|
546 |
int ttisstdcnt; |
|
547 |
int ttisgmtcnt; |
|
548 |
||
549 |
i = _read(fid, u.buf, sizeof u.buf); |
|
550 |
if (_close(fid) != 0) |
|
551 |
return -1; |
|
552 |
ttisstdcnt = (int) detzcode(u.tzhead.tzh_ttisstdcnt); |
|
553 |
ttisgmtcnt = (int) detzcode(u.tzhead.tzh_ttisgmtcnt); |
|
554 |
sp->leapcnt = (int) detzcode(u.tzhead.tzh_leapcnt); |
|
555 |
sp->timecnt = (int) detzcode(u.tzhead.tzh_timecnt); |
|
556 |
sp->typecnt = (int) detzcode(u.tzhead.tzh_typecnt); |
|
557 |
sp->charcnt = (int) detzcode(u.tzhead.tzh_charcnt); |
|
558 |
p = u.tzhead.tzh_charcnt + sizeof u.tzhead.tzh_charcnt; |
|
559 |
if (sp->leapcnt < 0 || sp->leapcnt > TZ_MAX_LEAPS || |
|
560 |
sp->typecnt <= 0 || sp->typecnt > TZ_MAX_TYPES || |
|
561 |
sp->timecnt < 0 || sp->timecnt > TZ_MAX_TIMES || |
|
562 |
sp->charcnt < 0 || sp->charcnt > TZ_MAX_CHARS || |
|
563 |
(ttisstdcnt != sp->typecnt && ttisstdcnt != 0) || |
|
564 |
(ttisgmtcnt != sp->typecnt && ttisgmtcnt != 0)) |
|
565 |
return -1; |
|
566 |
if (i - (p - u.buf) < sp->timecnt * 4 + /* ats */ |
|
567 |
sp->timecnt + /* types */ |
|
568 |
sp->typecnt * (4 + 2) + /* ttinfos */ |
|
569 |
sp->charcnt + /* chars */ |
|
570 |
sp->leapcnt * (4 + 4) + /* lsinfos */ |
|
571 |
ttisstdcnt + /* ttisstds */ |
|
572 |
ttisgmtcnt) /* ttisgmts */ |
|
573 |
return -1; |
|
574 |
for (i = 0; i < sp->timecnt; ++i) { |
|
575 |
sp->ats[i] = detzcode(p); |
|
576 |
p += 4; |
|
577 |
} |
|
578 |
for (i = 0; i < sp->timecnt; ++i) { |
|
579 |
sp->types[i] = (unsigned char) *p++; |
|
580 |
if (sp->types[i] >= sp->typecnt) |
|
581 |
return -1; |
|
582 |
} |
|
583 |
for (i = 0; i < sp->typecnt; ++i) { |
|
584 |
struct ttinfo * ttisp; |
|
585 |
||
586 |
ttisp = &sp->ttis[i]; |
|
587 |
ttisp->tt_gmtoff = detzcode(p); |
|
588 |
p += 4; |
|
589 |
ttisp->tt_isdst = (unsigned char) *p++; |
|
590 |
if (ttisp->tt_isdst != 0 && ttisp->tt_isdst != 1) |
|
591 |
return -1; |
|
592 |
ttisp->tt_abbrind = (unsigned char) *p++; |
|
593 |
if (ttisp->tt_abbrind < 0 || |
|
594 |
ttisp->tt_abbrind > sp->charcnt) |
|
595 |
return -1; |
|
596 |
} |
|
597 |
for (i = 0; i < sp->charcnt; ++i) |
|
598 |
sp->chars[i] = *p++; |
|
599 |
sp->chars[i] = '\0'; /* ensure '\0' at end */ |
|
600 |
for (i = 0; i < sp->leapcnt; ++i) { |
|
601 |
struct lsinfo * lsisp; |
|
602 |
||
603 |
lsisp = &sp->lsis[i]; |
|
604 |
lsisp->ls_trans = detzcode(p); |
|
605 |
p += 4; |
|
606 |
lsisp->ls_corr = detzcode(p); |
|
607 |
p += 4; |
|
608 |
} |
|
609 |
for (i = 0; i < sp->typecnt; ++i) { |
|
610 |
struct ttinfo * ttisp; |
|
611 |
||
612 |
ttisp = &sp->ttis[i]; |
|
613 |
if (ttisstdcnt == 0) |
|
614 |
ttisp->tt_ttisstd = FALSE; |
|
615 |
else { |
|
616 |
ttisp->tt_ttisstd = *p++; |
|
617 |
if (ttisp->tt_ttisstd != TRUE && |
|
618 |
ttisp->tt_ttisstd != FALSE) |
|
619 |
return -1; |
|
620 |
} |
|
621 |
} |
|
622 |
for (i = 0; i < sp->typecnt; ++i) { |
|
623 |
struct ttinfo * ttisp; |
|
624 |
||
625 |
ttisp = &sp->ttis[i]; |
|
626 |
if (ttisgmtcnt == 0) |
|
627 |
ttisp->tt_ttisgmt = FALSE; |
|
628 |
else { |
|
629 |
ttisp->tt_ttisgmt = *p++; |
|
630 |
if (ttisp->tt_ttisgmt != TRUE && |
|
631 |
ttisp->tt_ttisgmt != FALSE) |
|
632 |
return -1; |
|
633 |
} |
|
634 |
} |
|
635 |
} |
|
636 |
#endif //__SYMBIAN32__ |
|
637 |
return 0; |
|
638 |
} |
|
639 |
||
640 |
static const int mon_lengths[2][MONSPERYEAR] = { |
|
641 |
{ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }, |
|
642 |
{ 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } |
|
643 |
}; |
|
644 |
||
645 |
static const int year_lengths[2] = { |
|
646 |
DAYSPERNYEAR, DAYSPERLYEAR |
|
647 |
}; |
|
648 |
||
649 |
/* |
|
650 |
** Given a pointer into a time zone string, scan until a character that is not |
|
651 |
** a valid character in a zone name is found. Return a pointer to that |
|
652 |
** character. |
|
653 |
*/ |
|
654 |
||
655 |
static const char * |
|
656 |
getzname(strp) |
|
657 |
const char * strp; |
|
658 |
{ |
|
659 |
char c; |
|
660 |
||
661 |
while ((c = *strp) != '\0' && !is_digit(c) && c != ',' && c != '-' && |
|
662 |
c != '+') |
|
663 |
++strp; |
|
664 |
return strp; |
|
665 |
} |
|
666 |
||
667 |
/* |
|
668 |
** Given a pointer into a time zone string, extract a number from that string. |
|
669 |
** Check that the number is within a specified range; if it is not, return |
|
670 |
** NULL. |
|
671 |
** Otherwise, return a pointer to the first character not part of the number. |
|
672 |
*/ |
|
673 |
||
674 |
static const char * |
|
675 |
getnum(strp, nump, min, max) |
|
676 |
const char * strp; |
|
677 |
int * const nump; |
|
678 |
const int min; |
|
679 |
const int max; |
|
680 |
{ |
|
681 |
char c; |
|
682 |
int num; |
|
683 |
||
684 |
if (strp == NULL || !is_digit(c = *strp)) |
|
685 |
return NULL; |
|
686 |
num = 0; |
|
687 |
do { |
|
688 |
num = num * 10 + (c - '0'); |
|
689 |
if (num > max) |
|
690 |
return NULL; /* illegal value */ |
|
691 |
c = *++strp; |
|
692 |
} while (is_digit(c)); |
|
693 |
if (num < min) |
|
694 |
return NULL; /* illegal value */ |
|
695 |
*nump = num; |
|
696 |
return strp; |
|
697 |
} |
|
698 |
||
699 |
/* |
|
700 |
** Given a pointer into a time zone string, extract a number of seconds, |
|
701 |
** in hh[:mm[:ss]] form, from the string. |
|
702 |
** If any error occurs, return NULL. |
|
703 |
** Otherwise, return a pointer to the first character not part of the number |
|
704 |
** of seconds. |
|
705 |
*/ |
|
706 |
||
707 |
static const char * |
|
708 |
getsecs(strp, secsp) |
|
709 |
const char * strp; |
|
710 |
long * const secsp; |
|
711 |
{ |
|
712 |
int num; |
|
713 |
||
714 |
/* |
|
715 |
** `HOURSPERDAY * DAYSPERWEEK - 1' allows quasi-Posix rules like |
|
716 |
** "M10.4.6/26", which does not conform to Posix, |
|
717 |
** but which specifies the equivalent of |
|
718 |
** ``02:00 on the first Sunday on or after 23 Oct''. |
|
719 |
*/ |
|
720 |
strp = getnum(strp, &num, 0, HOURSPERDAY * DAYSPERWEEK - 1); |
|
721 |
if (strp == NULL) |
|
722 |
return NULL; |
|
723 |
*secsp = num * (long) SECSPERHOUR; |
|
724 |
if (*strp == ':') { |
|
725 |
++strp; |
|
726 |
strp = getnum(strp, &num, 0, MINSPERHOUR - 1); |
|
727 |
if (strp == NULL) |
|
728 |
return NULL; |
|
729 |
*secsp += num * SECSPERMIN; |
|
730 |
if (*strp == ':') { |
|
731 |
++strp; |
|
732 |
/* `SECSPERMIN' allows for leap seconds. */ |
|
733 |
strp = getnum(strp, &num, 0, SECSPERMIN); |
|
734 |
if (strp == NULL) |
|
735 |
return NULL; |
|
736 |
*secsp += num; |
|
737 |
} |
|
738 |
} |
|
739 |
return strp; |
|
740 |
} |
|
741 |
||
742 |
/* |
|
743 |
** Given a pointer into a time zone string, extract an offset, in |
|
744 |
** [+-]hh[:mm[:ss]] form, from the string. |
|
745 |
** If any error occurs, return NULL. |
|
746 |
** Otherwise, return a pointer to the first character not part of the time. |
|
747 |
*/ |
|
748 |
||
749 |
static const char * |
|
750 |
getoffset(strp, offsetp) |
|
751 |
const char * strp; |
|
752 |
long * const offsetp; |
|
753 |
{ |
|
754 |
int neg = 0; |
|
755 |
||
756 |
if (*strp == '-') { |
|
757 |
neg = 1; |
|
758 |
++strp; |
|
759 |
} else if (*strp == '+') |
|
760 |
++strp; |
|
761 |
strp = getsecs(strp, offsetp); |
|
762 |
if (strp == NULL) |
|
763 |
return NULL; /* illegal time */ |
|
764 |
if (neg) |
|
765 |
*offsetp = -*offsetp; |
|
766 |
return strp; |
|
767 |
} |
|
768 |
||
769 |
/* |
|
770 |
** Given a pointer into a time zone string, extract a rule in the form |
|
771 |
** date[/time]. See POSIX section 8 for the format of "date" and "time". |
|
772 |
** If a valid rule is not found, return NULL. |
|
773 |
** Otherwise, return a pointer to the first character not part of the rule. |
|
774 |
*/ |
|
775 |
||
776 |
static const char * |
|
777 |
getrule(strp, rulep) |
|
778 |
const char * strp; |
|
779 |
struct rule * const rulep; |
|
780 |
{ |
|
781 |
if (*strp == 'J') { |
|
782 |
/* |
|
783 |
** Julian day. |
|
784 |
*/ |
|
785 |
rulep->r_type = JULIAN_DAY; |
|
786 |
++strp; |
|
787 |
strp = getnum(strp, &rulep->r_day, 1, DAYSPERNYEAR); |
|
788 |
} else if (*strp == 'M') { |
|
789 |
/* |
|
790 |
** Month, week, day. |
|
791 |
*/ |
|
792 |
rulep->r_type = MONTH_NTH_DAY_OF_WEEK; |
|
793 |
++strp; |
|
794 |
strp = getnum(strp, &rulep->r_mon, 1, MONSPERYEAR); |
|
795 |
if (strp == NULL) |
|
796 |
return NULL; |
|
797 |
if (*strp++ != '.') |
|
798 |
return NULL; |
|
799 |
strp = getnum(strp, &rulep->r_week, 1, 5); |
|
800 |
if (strp == NULL) |
|
801 |
return NULL; |
|
802 |
if (*strp++ != '.') |
|
803 |
return NULL; |
|
804 |
strp = getnum(strp, &rulep->r_day, 0, DAYSPERWEEK - 1); |
|
805 |
} else if (is_digit(*strp)) { |
|
806 |
/* |
|
807 |
** Day of year. |
|
808 |
*/ |
|
809 |
rulep->r_type = DAY_OF_YEAR; |
|
810 |
strp = getnum(strp, &rulep->r_day, 0, DAYSPERLYEAR - 1); |
|
811 |
} else return NULL; /* invalid format */ |
|
812 |
if (strp == NULL) |
|
813 |
return NULL; |
|
814 |
if (*strp == '/') { |
|
815 |
/* |
|
816 |
** Time specified. |
|
817 |
*/ |
|
818 |
++strp; |
|
819 |
strp = getsecs(strp, &rulep->r_time); |
|
820 |
} else rulep->r_time = 2 * SECSPERHOUR; /* default = 2:00:00 */ |
|
821 |
return strp; |
|
822 |
} |
|
823 |
||
824 |
/* |
|
825 |
** Given the Epoch-relative time of January 1, 00:00:00 UTC, in a year, the |
|
826 |
** year, a rule, and the offset from UTC at the time that rule takes effect, |
|
827 |
** calculate the Epoch-relative time that rule takes effect. |
|
828 |
*/ |
|
829 |
||
830 |
static time_t |
|
831 |
transtime(janfirst, year, rulep, offset) |
|
832 |
const time_t janfirst; |
|
833 |
const int year; |
|
834 |
const struct rule * const rulep; |
|
835 |
const long offset; |
|
836 |
{ |
|
837 |
int leapyear; |
|
838 |
time_t value; |
|
839 |
int i; |
|
840 |
int d, m1, yy0, yy1, yy2, dow; |
|
841 |
||
842 |
INITIALIZE(value); |
|
843 |
leapyear = isleap(year); |
|
844 |
switch (rulep->r_type) { |
|
845 |
||
846 |
case JULIAN_DAY: |
|
847 |
/* |
|
848 |
** Jn - Julian day, 1 == January 1, 60 == March 1 even in leap |
|
849 |
** years. |
|
850 |
** In non-leap years, or if the day number is 59 or less, just |
|
851 |
** add SECSPERDAY times the day number-1 to the time of |
|
852 |
** January 1, midnight, to get the day. |
|
853 |
*/ |
|
854 |
value = janfirst + (rulep->r_day - 1) * SECSPERDAY; |
|
855 |
if (leapyear && rulep->r_day >= 60) |
|
856 |
value += SECSPERDAY; |
|
857 |
break; |
|
858 |
||
859 |
case DAY_OF_YEAR: |
|
860 |
/* |
|
861 |
** n - day of year. |
|
862 |
** Just add SECSPERDAY times the day number to the time of |
|
863 |
** January 1, midnight, to get the day. |
|
864 |
*/ |
|
865 |
value = janfirst + rulep->r_day * SECSPERDAY; |
|
866 |
break; |
|
867 |
||
868 |
case MONTH_NTH_DAY_OF_WEEK: |
|
869 |
/* |
|
870 |
** Mm.n.d - nth "dth day" of month m. |
|
871 |
*/ |
|
872 |
value = janfirst; |
|
873 |
for (i = 0; i < rulep->r_mon - 1; ++i) |
|
874 |
value += mon_lengths[leapyear][i] * SECSPERDAY; |
|
875 |
||
876 |
/* |
|
877 |
** Use Zeller's Congruence to get day-of-week of first day of |
|
878 |
** month. |
|
879 |
*/ |
|
880 |
m1 = (rulep->r_mon + 9) % 12 + 1; |
|
881 |
yy0 = (rulep->r_mon <= 2) ? (year - 1) : year; |
|
882 |
yy1 = yy0 / 100; |
|
883 |
yy2 = yy0 % 100; |
|
884 |
dow = ((26 * m1 - 2) / 10 + |
|
885 |
1 + yy2 + yy2 / 4 + yy1 / 4 - 2 * yy1) % 7; |
|
886 |
if (dow < 0) |
|
887 |
dow += DAYSPERWEEK; |
|
888 |
||
889 |
/* |
|
890 |
** "dow" is the day-of-week of the first day of the month. Get |
|
891 |
** the day-of-month (zero-origin) of the first "dow" day of the |
|
892 |
** month. |
|
893 |
*/ |
|
894 |
d = rulep->r_day - dow; |
|
895 |
if (d < 0) |
|
896 |
d += DAYSPERWEEK; |
|
897 |
for (i = 1; i < rulep->r_week; ++i) { |
|
898 |
if (d + DAYSPERWEEK >= |
|
899 |
mon_lengths[leapyear][rulep->r_mon - 1]) |
|
900 |
break; |
|
901 |
d += DAYSPERWEEK; |
|
902 |
} |
|
903 |
||
904 |
/* |
|
905 |
** "d" is the day-of-month (zero-origin) of the day we want. |
|
906 |
*/ |
|
907 |
value += d * SECSPERDAY; |
|
908 |
break; |
|
909 |
} |
|
910 |
||
911 |
/* |
|
912 |
** "value" is the Epoch-relative time of 00:00:00 UTC on the day in |
|
913 |
** question. To get the Epoch-relative time of the specified local |
|
914 |
** time on that day, add the transition time and the current offset |
|
915 |
** from UTC. |
|
916 |
*/ |
|
917 |
return value + rulep->r_time + offset; |
|
918 |
} |
|
919 |
||
920 |
/* |
|
921 |
** Given a POSIX section 8-style TZ string, fill in the rule tables as |
|
922 |
** appropriate. |
|
923 |
*/ |
|
924 |
||
925 |
static int |
|
926 |
tzparse(name, sp, lastditch) |
|
927 |
const char * name; |
|
928 |
struct state * const sp; |
|
929 |
const int lastditch; |
|
930 |
{ |
|
931 |
const char * stdname; |
|
932 |
const char * dstname; |
|
933 |
size_t stdlen; |
|
934 |
size_t dstlen; |
|
935 |
long stdoffset; |
|
936 |
long dstoffset; |
|
937 |
time_t * atp; |
|
938 |
unsigned char * typep; |
|
939 |
char * cp; |
|
940 |
int load_result; |
|
941 |
||
942 |
INITIALIZE(dstname); |
|
943 |
stdname = name; |
|
944 |
if (lastditch) { |
|
945 |
stdlen = strlen(name); /* length of standard zone name */ |
|
946 |
name += stdlen; |
|
947 |
if (stdlen >= sizeof sp->chars) |
|
948 |
stdlen = (sizeof sp->chars) - 1; |
|
949 |
#ifndef __SYMBIAN32__ |
|
950 |
stdoffset = 0; |
|
951 |
#else //__SYMBIAN32__ |
|
952 |
stdoffset = (-1)*GetStdOffset(); |
|
953 |
#endif //__SYMBIAN32__ |
|
954 |
} else { |
|
955 |
name = getzname(name); |
|
956 |
stdlen = name - stdname; |
|
957 |
if (stdlen < 3) |
|
958 |
return -1; |
|
959 |
if (*name == '\0') |
|
960 |
return -1; /* was "stdoffset = 0;" */ |
|
961 |
else { |
|
962 |
name = getoffset(name, &stdoffset); |
|
963 |
if (name == NULL) |
|
964 |
return -1; |
|
965 |
} |
|
966 |
} |
|
967 |
load_result = tzload(TZDEFRULES, sp); |
|
968 |
if (load_result != 0) |
|
969 |
sp->leapcnt = 0; /* so, we're off a little */ |
|
970 |
if (*name != '\0') { |
|
971 |
dstname = name; |
|
972 |
name = getzname(name); |
|
973 |
dstlen = name - dstname; /* length of DST zone name */ |
|
974 |
if (dstlen < 3) |
|
975 |
return -1; |
|
976 |
if (*name != '\0' && *name != ',' && *name != ';') { |
|
977 |
name = getoffset(name, &dstoffset); |
|
978 |
if (name == NULL) |
|
979 |
return -1; |
|
980 |
} else dstoffset = stdoffset - SECSPERHOUR; |
|
981 |
if (*name == '\0' && load_result != 0) |
|
982 |
name = TZDEFRULESTRING; |
|
983 |
if (*name == ',' || *name == ';') { |
|
984 |
struct rule start; |
|
985 |
struct rule end; |
|
986 |
int year; |
|
987 |
time_t janfirst; |
|
988 |
time_t starttime; |
|
989 |
time_t endtime; |
|
990 |
||
991 |
++name; |
|
992 |
if ((name = getrule(name, &start)) == NULL) |
|
993 |
return -1; |
|
994 |
if (*name++ != ',') |
|
995 |
return -1; |
|
996 |
if ((name = getrule(name, &end)) == NULL) |
|
997 |
return -1; |
|
998 |
if (*name != '\0') |
|
999 |
return -1; |
|
1000 |
sp->typecnt = 2; /* standard time and DST */ |
|
1001 |
/* |
|
1002 |
** Two transitions per year, from EPOCH_YEAR to 2037. |
|
1003 |
*/ |
|
1004 |
sp->timecnt = 2 * (2037 - EPOCH_YEAR + 1); |
|
1005 |
if (sp->timecnt > TZ_MAX_TIMES) |
|
1006 |
return -1; |
|
1007 |
sp->ttis[0].tt_gmtoff = -dstoffset; |
|
1008 |
sp->ttis[0].tt_isdst = 1; |
|
1009 |
sp->ttis[0].tt_abbrind = stdlen + 1; |
|
1010 |
sp->ttis[1].tt_gmtoff = -stdoffset; |
|
1011 |
sp->ttis[1].tt_isdst = 0; |
|
1012 |
sp->ttis[1].tt_abbrind = 0; |
|
1013 |
atp = sp->ats; |
|
1014 |
typep = sp->types; |
|
1015 |
janfirst = 0; |
|
1016 |
for (year = EPOCH_YEAR; year <= 2037; ++year) { |
|
1017 |
starttime = transtime(janfirst, year, &start, |
|
1018 |
stdoffset); |
|
1019 |
endtime = transtime(janfirst, year, &end, |
|
1020 |
dstoffset); |
|
1021 |
if (starttime > endtime) { |
|
1022 |
*atp++ = endtime; |
|
1023 |
*typep++ = 1; /* DST ends */ |
|
1024 |
*atp++ = starttime; |
|
1025 |
*typep++ = 0; /* DST begins */ |
|
1026 |
} else { |
|
1027 |
*atp++ = starttime; |
|
1028 |
*typep++ = 0; /* DST begins */ |
|
1029 |
*atp++ = endtime; |
|
1030 |
*typep++ = 1; /* DST ends */ |
|
1031 |
} |
|
1032 |
janfirst += year_lengths[isleap(year)] * |
|
1033 |
SECSPERDAY; |
|
1034 |
} |
|
1035 |
} else { |
|
1036 |
long theirstdoffset; |
|
1037 |
long theirdstoffset; |
|
1038 |
long theiroffset; |
|
1039 |
int isdst; |
|
1040 |
int i; |
|
1041 |
int j; |
|
1042 |
||
1043 |
if (*name != '\0') |
|
1044 |
return -1; |
|
1045 |
/* |
|
1046 |
** Initial values of theirstdoffset and theirdstoffset. |
|
1047 |
*/ |
|
1048 |
theirstdoffset = 0; |
|
1049 |
for (i = 0; i < sp->timecnt; ++i) { |
|
1050 |
j = sp->types[i]; |
|
1051 |
if (!sp->ttis[j].tt_isdst) { |
|
1052 |
theirstdoffset = |
|
1053 |
-sp->ttis[j].tt_gmtoff; |
|
1054 |
break; |
|
1055 |
} |
|
1056 |
} |
|
1057 |
theirdstoffset = 0; |
|
1058 |
for (i = 0; i < sp->timecnt; ++i) { |
|
1059 |
j = sp->types[i]; |
|
1060 |
if (sp->ttis[j].tt_isdst) { |
|
1061 |
theirdstoffset = |
|
1062 |
-sp->ttis[j].tt_gmtoff; |
|
1063 |
break; |
|
1064 |
} |
|
1065 |
} |
|
1066 |
/* |
|
1067 |
** Initially we're assumed to be in standard time. |
|
1068 |
*/ |
|
1069 |
isdst = FALSE; |
|
1070 |
theiroffset = theirstdoffset; |
|
1071 |
/* |
|
1072 |
** Now juggle transition times and types |
|
1073 |
** tracking offsets as you do. |
|
1074 |
*/ |
|
1075 |
for (i = 0; i < sp->timecnt; ++i) { |
|
1076 |
j = sp->types[i]; |
|
1077 |
sp->types[i] = sp->ttis[j].tt_isdst; |
|
1078 |
if (sp->ttis[j].tt_ttisgmt) { |
|
1079 |
/* No adjustment to transition time */ |
|
1080 |
} else { |
|
1081 |
/* |
|
1082 |
** If summer time is in effect, and the |
|
1083 |
** transition time was not specified as |
|
1084 |
** standard time, add the summer time |
|
1085 |
** offset to the transition time; |
|
1086 |
** otherwise, add the standard time |
|
1087 |
** offset to the transition time. |
|
1088 |
*/ |
|
1089 |
/* |
|
1090 |
** Transitions from DST to DDST |
|
1091 |
** will effectively disappear since |
|
1092 |
** POSIX provides for only one DST |
|
1093 |
** offset. |
|
1094 |
*/ |
|
1095 |
if (isdst && !sp->ttis[j].tt_ttisstd) { |
|
1096 |
sp->ats[i] += dstoffset - |
|
1097 |
theirdstoffset; |
|
1098 |
} else { |
|
1099 |
sp->ats[i] += stdoffset - |
|
1100 |
theirstdoffset; |
|
1101 |
} |
|
1102 |
} |
|
1103 |
theiroffset = -sp->ttis[j].tt_gmtoff; |
|
1104 |
if (sp->ttis[j].tt_isdst) |
|
1105 |
theirdstoffset = theiroffset; |
|
1106 |
else theirstdoffset = theiroffset; |
|
1107 |
} |
|
1108 |
/* |
|
1109 |
** Finally, fill in ttis. |
|
1110 |
** ttisstd and ttisgmt need not be handled. |
|
1111 |
*/ |
|
1112 |
sp->ttis[0].tt_gmtoff = -stdoffset; |
|
1113 |
sp->ttis[0].tt_isdst = FALSE; |
|
1114 |
sp->ttis[0].tt_abbrind = 0; |
|
1115 |
sp->ttis[1].tt_gmtoff = -dstoffset; |
|
1116 |
sp->ttis[1].tt_isdst = TRUE; |
|
1117 |
sp->ttis[1].tt_abbrind = stdlen + 1; |
|
1118 |
sp->typecnt = 2; |
|
1119 |
} |
|
1120 |
} else { |
|
1121 |
dstlen = 0; |
|
1122 |
sp->typecnt = 1; /* only standard time */ |
|
1123 |
sp->timecnt = 0; |
|
1124 |
sp->ttis[0].tt_gmtoff = -stdoffset; |
|
1125 |
#ifndef __SYMBIAN32__ |
|
1126 |
sp->ttis[0].tt_isdst = 0; |
|
1127 |
#else //__SYMBIAN32__ |
|
1128 |
sp->ttis[0].tt_isdst = GetIsDst(); |
|
1129 |
#endif //__SYMBIAN32__ |
|
1130 |
sp->ttis[0].tt_abbrind = 0; |
|
1131 |
} |
|
1132 |
sp->charcnt = stdlen + 1; |
|
1133 |
if (dstlen != 0) |
|
1134 |
sp->charcnt += dstlen + 1; |
|
1135 |
if ((size_t) sp->charcnt > sizeof sp->chars) |
|
1136 |
return -1; |
|
1137 |
cp = sp->chars; |
|
1138 |
(void) strncpy(cp, stdname, stdlen); |
|
1139 |
cp += stdlen; |
|
1140 |
*cp++ = '\0'; |
|
1141 |
if (dstlen != 0) { |
|
1142 |
(void) strncpy(cp, dstname, dstlen); |
|
1143 |
*(cp + dstlen) = '\0'; |
|
1144 |
} |
|
1145 |
return 0; |
|
1146 |
} |
|
1147 |
||
1148 |
static void |
|
1149 |
gmtload(sp) |
|
1150 |
struct state * const sp; |
|
1151 |
{ |
|
1152 |
if (tzload(gmt, sp) != 0) |
|
1153 |
(void) tzparse(gmt, sp, TRUE); |
|
1154 |
} |
|
1155 |
||
1156 |
static void |
|
1157 |
tzsetwall_basic(void) |
|
1158 |
{ |
|
1159 |
if (lcl_is_set < 0) |
|
1160 |
return; |
|
1161 |
lcl_is_set = -1; |
|
1162 |
||
1163 |
#ifdef ALL_STATE |
|
1164 |
if (lclptr == NULL) { |
|
1165 |
lclptr = (struct state *) malloc(sizeof *lclptr); |
|
1166 |
if (lclptr == NULL) { |
|
1167 |
settzname(); /* all we can do */ |
|
1168 |
return; |
|
1169 |
} |
|
1170 |
} |
|
1171 |
#endif /* defined ALL_STATE */ |
|
1172 |
if (tzload((char *) NULL, lclptr) != 0) |
|
1173 |
gmtload(lclptr); |
|
1174 |
settzname(); |
|
1175 |
} |
|
1176 |
||
1177 |
#ifndef __SYMBIAN32__ |
|
1178 |
void |
|
1179 |
tzsetwall(void) |
|
1180 |
{ |
|
1181 |
_MUTEX_LOCK(&lcl_mutex); |
|
1182 |
tzsetwall_basic(); |
|
1183 |
_MUTEX_UNLOCK(&lcl_mutex); |
|
1184 |
} |
|
1185 |
#endif //__SYMBIAN32__ |
|
1186 |
||
1187 |
static void |
|
1188 |
tzset_basic(void) |
|
1189 |
{ |
|
1190 |
const char * name; |
|
1191 |
||
1192 |
name = getenv("TZ"); |
|
1193 |
if (name == NULL) { |
|
1194 |
tzsetwall_basic(); |
|
1195 |
return; |
|
1196 |
} |
|
1197 |
||
1198 |
if (lcl_is_set > 0 && strcmp(lcl_TZname, name) == 0) |
|
1199 |
return; |
|
1200 |
lcl_is_set = strlen(name) < sizeof lcl_TZname; |
|
1201 |
if (lcl_is_set) |
|
1202 |
(void) strcpy(lcl_TZname, name); |
|
1203 |
||
1204 |
#ifdef ALL_STATE |
|
1205 |
if (lclptr == NULL) { |
|
1206 |
lclptr = (struct state *) malloc(sizeof *lclptr); |
|
1207 |
if (lclptr == NULL) { |
|
1208 |
settzname(); /* all we can do */ |
|
1209 |
return; |
|
1210 |
} |
|
1211 |
} |
|
1212 |
#endif /* defined ALL_STATE */ |
|
1213 |
if (*name == '\0') { |
|
1214 |
/* |
|
1215 |
** User wants it fast rather than right. |
|
1216 |
*/ |
|
1217 |
lclptr->leapcnt = 0; /* so, we're off a little */ |
|
1218 |
lclptr->timecnt = 0; |
|
1219 |
lclptr->typecnt = 0; |
|
1220 |
lclptr->ttis[0].tt_isdst = 0; |
|
1221 |
lclptr->ttis[0].tt_gmtoff = 0; |
|
1222 |
lclptr->ttis[0].tt_abbrind = 0; |
|
1223 |
(void) strcpy(lclptr->chars, gmt); |
|
1224 |
} else if (tzload(name, lclptr) != 0) |
|
1225 |
if (name[0] == ':' || tzparse(name, lclptr, FALSE) != 0) |
|
1226 |
(void) gmtload(lclptr); |
|
1227 |
settzname(); |
|
1228 |
} |
|
1229 |
||
1230 |
EXPORT_C |
|
1231 |
void |
|
1232 |
tzset(void) |
|
1233 |
{ |
|
1234 |
_MUTEX_LOCK(&lcl_mutex); |
|
1235 |
tzset_basic(); |
|
1236 |
_MUTEX_UNLOCK(&lcl_mutex); |
|
1237 |
} |
|
1238 |
||
1239 |
/* |
|
1240 |
** The easy way to behave "as if no library function calls" localtime |
|
1241 |
** is to not call it--so we drop its guts into "localsub", which can be |
|
1242 |
** freely called. (And no, the PANS doesn't require the above behavior-- |
|
1243 |
** but it *is* desirable.) |
|
1244 |
** |
|
1245 |
** The unused offset argument is for the benefit of mktime variants. |
|
1246 |
*/ |
|
1247 |
||
1248 |
/*ARGSUSED*/ |
|
1249 |
static void |
|
1250 |
localsub(timep, offset, tmp) |
|
1251 |
const time_t * const timep; |
|
1252 |
#ifdef __SYMBIAN32__ |
|
1253 |
long offset; |
|
1254 |
#else//__SYMBIAN32__ |
|
1255 |
const long offset; |
|
1256 |
#endif//__SYMBIAN32__ |
|
1257 |
struct tm * const tmp; |
|
1258 |
{ |
|
1259 |
struct state * sp; |
|
1260 |
const struct ttinfo * ttisp; |
|
1261 |
int i; |
|
1262 |
const time_t t = *timep; |
|
1263 |
||
1264 |
sp = lclptr; |
|
1265 |
#ifdef __SYMBIAN32__ |
|
1266 |
offset = offset; /*to fix warning 'variable/argument not used in function' */ |
|
1267 |
#endif //__SYMBIAN32__ |
|
1268 |
#ifdef ALL_STATE |
|
1269 |
if (sp == NULL) { |
|
1270 |
gmtsub(timep, offset, tmp); |
|
1271 |
return; |
|
1272 |
} |
|
1273 |
#endif /* defined ALL_STATE */ |
|
1274 |
if (sp->timecnt == 0 || t < sp->ats[0]) { |
|
1275 |
i = 0; |
|
1276 |
while (sp->ttis[i].tt_isdst) |
|
1277 |
if (++i >= sp->typecnt) { |
|
1278 |
i = 0; |
|
1279 |
break; |
|
1280 |
} |
|
1281 |
} else { |
|
1282 |
for (i = 1; i < sp->timecnt; ++i) |
|
1283 |
if (t < sp->ats[i]) |
|
1284 |
break; |
|
1285 |
i = sp->types[i - 1]; |
|
1286 |
} |
|
1287 |
ttisp = &sp->ttis[i]; |
|
1288 |
/* |
|
1289 |
** To get (wrong) behavior that's compatible with System V Release 2.0 |
|
1290 |
** you'd replace the statement below with |
|
1291 |
** t += ttisp->tt_gmtoff; |
|
1292 |
** timesub(&t, 0L, sp, tmp); |
|
1293 |
*/ |
|
1294 |
timesub(&t, ttisp->tt_gmtoff, sp, tmp); |
|
1295 |
tmp->tm_isdst = ttisp->tt_isdst; |
|
1296 |
tzname[tmp->tm_isdst] = &sp->chars[ttisp->tt_abbrind]; |
|
1297 |
#ifdef TM_ZONE |
|
1298 |
tmp->TM_ZONE = &sp->chars[ttisp->tt_abbrind]; |
|
1299 |
#endif /* defined TM_ZONE */ |
|
1300 |
} |
|
1301 |
||
1302 |
EXPORT_C |
|
1303 |
struct tm * |
|
1304 |
localtime(timep) |
|
1305 |
const time_t * const timep; |
|
1306 |
{ |
|
1307 |
#ifdef __SYMBIAN32__ |
|
1308 |
int err = 0; |
|
1309 |
#ifndef EMULATOR |
|
1310 |
static pthread_mutex_t localtime_mutex = PTHREAD_MUTEX_INITIALIZER; |
|
1311 |
static pthread_key_t localtime_key = (unsigned)-1; |
|
1312 |
#endif //EMULATOR |
|
1313 |
#else //__SYMBIAN32__ |
|
1314 |
static pthread_mutex_t localtime_mutex = PTHREAD_MUTEX_INITIALIZER; |
|
1315 |
static pthread_key_t localtime_key = -1; |
|
1316 |
#endif //__SYMBIAN32__ |
|
1317 |
struct tm *p_tm; |
|
1318 |
||
1319 |
if (__isthreaded != 0) { |
|
1320 |
_pthread_mutex_lock(&localtime_mutex); |
|
1321 |
if (localtime_key == (pthread_key_t)-1) { |
|
1322 |
if (_pthread_key_create(&localtime_key, free) < 0) { |
|
1323 |
_pthread_mutex_unlock(&localtime_mutex); |
|
1324 |
return(NULL); |
|
1325 |
} |
|
1326 |
} |
|
1327 |
_pthread_mutex_unlock(&localtime_mutex); |
|
1328 |
p_tm = _pthread_getspecific(localtime_key); |
|
1329 |
if (p_tm == NULL) { |
|
1330 |
if ((p_tm = (struct tm *)malloc(sizeof(struct tm))) |
|
1331 |
== NULL) |
|
1332 |
return(NULL); |
|
1333 |
_pthread_setspecific(localtime_key, p_tm); |
|
1334 |
} |
|
1335 |
_pthread_mutex_lock(&lcl_mutex); |
|
1336 |
tzset_basic(); |
|
1337 |
localsub(timep, 0L, p_tm); |
|
1338 |
#ifdef __SYMBIAN32__ |
|
1339 |
if(getenv("TZ") == NULL) |
|
1340 |
{ |
|
1341 |
err = ConvertTime(EUtcToLocal, (TInt*)timep, p_tm); |
|
1342 |
} |
|
1343 |
#endif |
|
1344 |
_pthread_mutex_unlock(&lcl_mutex); |
|
1345 |
if(err) |
|
1346 |
{ |
|
1347 |
return NULL; |
|
1348 |
} |
|
1349 |
||
1350 |
return(p_tm); |
|
1351 |
} else { |
|
1352 |
tzset_basic(); |
|
1353 |
#ifdef __SYMBIAN32__ |
|
1354 |
localsub(timep, 0L, &stm); |
|
1355 |
if(getenv("TZ") == NULL) |
|
1356 |
{ |
|
1357 |
err = ConvertTime(EUtcToLocal,(TInt*)timep,&stm); |
|
1358 |
if(err) |
|
1359 |
{ |
|
1360 |
return NULL; |
|
1361 |
} |
|
1362 |
} |
|
1363 |
return(&stm); |
|
1364 |
#else //__SYMBIAN32__ |
|
1365 |
localsub(timep, 0L, &tm); |
|
1366 |
return(&tm); |
|
1367 |
#endif //__SYMBIAN32__ |
|
1368 |
} |
|
1369 |
} |
|
1370 |
||
1371 |
/* |
|
1372 |
** Re-entrant version of localtime. |
|
1373 |
*/ |
|
1374 |
||
1375 |
EXPORT_C |
|
1376 |
struct tm * |
|
1377 |
localtime_r(timep, tm) |
|
1378 |
const time_t * const timep; |
|
1379 |
struct tm * tm; |
|
1380 |
{ |
|
1381 |
#ifdef __SYMBIAN32__ |
|
1382 |
int err = 0; |
|
1383 |
#endif //__SYMBIAN32__ |
|
1384 |
_MUTEX_LOCK(&lcl_mutex); |
|
1385 |
tzset_basic(); |
|
1386 |
localsub(timep, 0L, tm); |
|
1387 |
#ifdef __SYMBIAN32__ |
|
1388 |
if(getenv("TZ") == NULL) |
|
1389 |
{ |
|
1390 |
err = ConvertTime(EUtcToLocal,(TInt*)timep,tm); |
|
1391 |
if(err) |
|
1392 |
{ |
|
1393 |
_MUTEX_UNLOCK(&lcl_mutex); |
|
1394 |
return NULL; |
|
1395 |
} |
|
1396 |
} |
|
1397 |
#endif //__SYMBIAN32__ |
|
1398 |
_MUTEX_UNLOCK(&lcl_mutex); |
|
1399 |
return tm; |
|
1400 |
} |
|
1401 |
||
1402 |
/* |
|
1403 |
** gmtsub is to gmtime as localsub is to localtime. |
|
1404 |
*/ |
|
1405 |
||
1406 |
static void |
|
1407 |
gmtsub(timep, offset, tmp) |
|
1408 |
const time_t * const timep; |
|
1409 |
const long offset; |
|
1410 |
struct tm * const tmp; |
|
1411 |
{ |
|
1412 |
_MUTEX_LOCK(&gmt_mutex); |
|
1413 |
if (!gmt_is_set) { |
|
1414 |
gmt_is_set = TRUE; |
|
1415 |
#ifdef ALL_STATE |
|
1416 |
gmtptr = (struct state *) malloc(sizeof *gmtptr); |
|
1417 |
if (gmtptr != NULL) |
|
1418 |
#endif /* defined ALL_STATE */ |
|
1419 |
#ifndef __SYMBIAN32__ |
|
1420 |
gmtload(gmtptr); |
|
1421 |
#endif //__SYMBIAN32__ |
|
1422 |
} |
|
1423 |
_MUTEX_UNLOCK(&gmt_mutex); |
|
1424 |
timesub(timep, offset, gmtptr, tmp); |
|
1425 |
#ifdef TM_ZONE |
|
1426 |
/* |
|
1427 |
** Could get fancy here and deliver something such as |
|
1428 |
** "UTC+xxxx" or "UTC-xxxx" if offset is non-zero, |
|
1429 |
** but this is no time for a treasure hunt. |
|
1430 |
*/ |
|
1431 |
if (offset != 0) |
|
1432 |
tmp->TM_ZONE = wildabbr; |
|
1433 |
else { |
|
1434 |
#ifdef ALL_STATE |
|
1435 |
if (gmtptr == NULL) |
|
1436 |
tmp->TM_ZONE = gmt; |
|
1437 |
else tmp->TM_ZONE = gmtptr->chars; |
|
1438 |
#endif /* defined ALL_STATE */ |
|
1439 |
#ifndef ALL_STATE |
|
1440 |
#ifndef __SYMBIAN32__ |
|
1441 |
tmp->TM_ZONE = gmtptr->chars; |
|
1442 |
#else //__SYMBIAN32__ |
|
1443 |
tmp->TM_ZONE ="UTC"; |
|
1444 |
#endif //__SYMBIAN32__ |
|
1445 |
#endif /* State Farm */ |
|
1446 |
} |
|
1447 |
#endif /* defined TM_ZONE */ |
|
1448 |
} |
|
1449 |
||
1450 |
EXPORT_C |
|
1451 |
struct tm * |
|
1452 |
gmtime(timep) |
|
1453 |
const time_t * const timep; |
|
1454 |
{ |
|
1455 |
#ifdef __SYMBIAN32__ |
|
1456 |
#ifndef EMULATOR |
|
1457 |
static pthread_mutex_t gmtime_mutex = PTHREAD_MUTEX_INITIALIZER; |
|
1458 |
static pthread_key_t gmtime_key = (unsigned)-1; |
|
1459 |
#endif //EMULATOR |
|
1460 |
#else //__SYMBIAN32__ |
|
1461 |
static pthread_mutex_t gmtime_mutex = PTHREAD_MUTEX_INITIALIZER; |
|
1462 |
static pthread_key_t gmtime_key = -1; |
|
1463 |
#endif //__SYMBIAN32__ |
|
1464 |
struct tm *p_tm; |
|
1465 |
||
1466 |
if (__isthreaded != 0) { |
|
1467 |
_pthread_mutex_lock(&gmtime_mutex); |
|
1468 |
if (gmtime_key == (pthread_key_t)-1) { |
|
1469 |
if (_pthread_key_create(&gmtime_key, free) < 0) { |
|
1470 |
_pthread_mutex_unlock(&gmtime_mutex); |
|
1471 |
return(NULL); |
|
1472 |
} |
|
1473 |
} |
|
1474 |
_pthread_mutex_unlock(&gmtime_mutex); |
|
1475 |
/* |
|
1476 |
* Changed to follow POSIX.1 threads standard, which |
|
1477 |
* is what BSD currently has. |
|
1478 |
*/ |
|
1479 |
if ((p_tm = _pthread_getspecific(gmtime_key)) == NULL) { |
|
1480 |
if ((p_tm = (struct tm *)malloc(sizeof(struct tm))) |
|
1481 |
== NULL) { |
|
1482 |
return(NULL); |
|
1483 |
} |
|
1484 |
_pthread_setspecific(gmtime_key, p_tm); |
|
1485 |
} |
|
1486 |
gmtsub(timep, 0L, p_tm); |
|
1487 |
return(p_tm); |
|
1488 |
} |
|
1489 |
else { |
|
1490 |
#ifdef __SYMBIAN32__ |
|
1491 |
gmtsub(timep, 0L, &stm); |
|
1492 |
return(&stm); |
|
1493 |
#else //__SYMBIAN32__ |
|
1494 |
gmtsub(timep, 0L, &tm); |
|
1495 |
return(&tm); |
|
1496 |
#endif //__SYMBIAN32__ |
|
1497 |
} |
|
1498 |
} |
|
1499 |
||
1500 |
/* |
|
1501 |
* Re-entrant version of gmtime. |
|
1502 |
*/ |
|
1503 |
||
1504 |
EXPORT_C |
|
1505 |
struct tm * |
|
1506 |
gmtime_r(timep, tm) |
|
1507 |
const time_t * const timep; |
|
1508 |
struct tm * tm; |
|
1509 |
{ |
|
1510 |
gmtsub(timep, 0L, tm); |
|
1511 |
return tm; |
|
1512 |
} |
|
1513 |
||
1514 |
#ifdef STD_INSPIRED |
|
1515 |
#ifdef __SYMBIAN_COMPILE_UNUSED__ |
|
1516 |
struct tm * |
|
1517 |
offtime(timep, offset) |
|
1518 |
const time_t * const timep; |
|
1519 |
const long offset; |
|
1520 |
{ |
|
1521 |
#ifdef __SYMBIAN32__ |
|
1522 |
gmtsub(timep, offset, &stm); |
|
1523 |
return &stm; |
|
1524 |
#else //__SYMBIAN32__ |
|
1525 |
gmtsub(timep, offset, &tm); |
|
1526 |
return &tm; |
|
1527 |
#endif //__SYMBIAN32__ |
|
1528 |
} |
|
1529 |
#endif //__SYMBIAN_COMPILE_UNUSED__ |
|
1530 |
#endif /* defined STD_INSPIRED */ |
|
1531 |
||
1532 |
static void |
|
1533 |
timesub(timep, offset, sp, tmp) |
|
1534 |
const time_t * const timep; |
|
1535 |
const long offset; |
|
1536 |
const struct state * const sp; |
|
1537 |
struct tm * const tmp; |
|
1538 |
{ |
|
1539 |
const struct lsinfo * lp; |
|
1540 |
long days; |
|
1541 |
long rem; |
|
1542 |
long y; |
|
1543 |
int yleap; |
|
1544 |
const int * ip; |
|
1545 |
long corr; |
|
1546 |
int hit; |
|
1547 |
int i; |
|
1548 |
||
1549 |
corr = 0; |
|
1550 |
hit = 0; |
|
1551 |
#ifdef ALL_STATE |
|
1552 |
i = (sp == NULL) ? 0 : sp->leapcnt; |
|
1553 |
#endif /* defined ALL_STATE */ |
|
1554 |
#ifndef ALL_STATE |
|
1555 |
i = sp->leapcnt; |
|
1556 |
#endif /* State Farm */ |
|
1557 |
while (--i >= 0) { |
|
1558 |
lp = &sp->lsis[i]; |
|
1559 |
if (*timep >= lp->ls_trans) { |
|
1560 |
if (*timep == lp->ls_trans) { |
|
1561 |
hit = ((i == 0 && lp->ls_corr > 0) || |
|
1562 |
lp->ls_corr > sp->lsis[i - 1].ls_corr); |
|
1563 |
if (hit) |
|
1564 |
while (i > 0 && |
|
1565 |
sp->lsis[i].ls_trans == |
|
1566 |
sp->lsis[i - 1].ls_trans + 1 && |
|
1567 |
sp->lsis[i].ls_corr == |
|
1568 |
sp->lsis[i - 1].ls_corr + 1) { |
|
1569 |
++hit; |
|
1570 |
--i; |
|
1571 |
} |
|
1572 |
} |
|
1573 |
corr = lp->ls_corr; |
|
1574 |
break; |
|
1575 |
} |
|
1576 |
} |
|
1577 |
days = *timep / SECSPERDAY; |
|
1578 |
rem = *timep % SECSPERDAY; |
|
1579 |
#ifdef mc68k |
|
1580 |
if (*timep == 0x80000000) { |
|
1581 |
/* |
|
1582 |
** A 3B1 muffs the division on the most negative number. |
|
1583 |
*/ |
|
1584 |
days = -24855; |
|
1585 |
rem = -11648; |
|
1586 |
} |
|
1587 |
#endif /* defined mc68k */ |
|
1588 |
rem += (offset - corr); |
|
1589 |
while (rem < 0) { |
|
1590 |
rem += SECSPERDAY; |
|
1591 |
--days; |
|
1592 |
} |
|
1593 |
while (rem >= SECSPERDAY) { |
|
1594 |
rem -= SECSPERDAY; |
|
1595 |
++days; |
|
1596 |
} |
|
1597 |
tmp->tm_hour = (int) (rem / SECSPERHOUR); |
|
1598 |
rem = rem % SECSPERHOUR; |
|
1599 |
tmp->tm_min = (int) (rem / SECSPERMIN); |
|
1600 |
/* |
|
1601 |
** A positive leap second requires a special |
|
1602 |
** representation. This uses "... ??:59:60" et seq. |
|
1603 |
*/ |
|
1604 |
tmp->tm_sec = (int) (rem % SECSPERMIN) + hit; |
|
1605 |
tmp->tm_wday = (int) ((EPOCH_WDAY + days) % DAYSPERWEEK); |
|
1606 |
if (tmp->tm_wday < 0) |
|
1607 |
tmp->tm_wday += DAYSPERWEEK; |
|
1608 |
y = EPOCH_YEAR; |
|
1609 |
#define LEAPS_THRU_END_OF(y) ((y) / 4 - (y) / 100 + (y) / 400) |
|
1610 |
while (days < 0 || days >= (long) year_lengths[yleap = isleap(y)]) { |
|
1611 |
long newy; |
|
1612 |
||
1613 |
newy = y + days / DAYSPERNYEAR; |
|
1614 |
if (days < 0) |
|
1615 |
--newy; |
|
1616 |
days -= (newy - y) * DAYSPERNYEAR + |
|
1617 |
LEAPS_THRU_END_OF(newy - 1) - |
|
1618 |
LEAPS_THRU_END_OF(y - 1); |
|
1619 |
y = newy; |
|
1620 |
} |
|
1621 |
tmp->tm_year = y - TM_YEAR_BASE; |
|
1622 |
tmp->tm_yday = (int) days; |
|
1623 |
ip = mon_lengths[yleap]; |
|
1624 |
for (tmp->tm_mon = 0; days >= (long) ip[tmp->tm_mon]; ++(tmp->tm_mon)) |
|
1625 |
days = days - (long) ip[tmp->tm_mon]; |
|
1626 |
tmp->tm_mday = (int) (days + 1); |
|
1627 |
tmp->tm_isdst = 0; |
|
1628 |
#ifdef TM_GMTOFF |
|
1629 |
tmp->TM_GMTOFF = offset; |
|
1630 |
#endif /* defined TM_GMTOFF */ |
|
1631 |
} |
|
1632 |
||
1633 |
EXPORT_C |
|
1634 |
char * |
|
1635 |
ctime(timep) |
|
1636 |
const time_t * const timep; |
|
1637 |
{ |
|
1638 |
/* |
|
1639 |
** Section 4.12.3.2 of X3.159-1989 requires that |
|
1640 |
** The ctime function converts the calendar time pointed to by timer |
|
1641 |
** to local time in the form of a string. It is equivalent to |
|
1642 |
** asctime(localtime(timer)) |
|
1643 |
*/ |
|
1644 |
return asctime(localtime(timep)); |
|
1645 |
} |
|
1646 |
||
1647 |
EXPORT_C |
|
1648 |
wchar_t * |
|
1649 |
wctime(timep) |
|
1650 |
const time_t * const timep; |
|
1651 |
{ |
|
1652 |
/* |
|
1653 |
** Section 4.12.3.2 of X3.159-1989 requires that |
|
1654 |
** The wctime function converts the calendar time pointed to by timer |
|
1655 |
** to local time in the form of a wide char string. It is equivalent to |
|
1656 |
** wasctime(localtime(timer)) |
|
1657 |
*/ |
|
1658 |
if (timep == NULL) |
|
1659 |
return NULL; |
|
1660 |
else |
|
1661 |
return (wchar_t *)wasctime(localtime(timep)); |
|
1662 |
} |
|
1663 |
||
1664 |
EXPORT_C |
|
1665 |
char * |
|
1666 |
ctime_r(timep, buf) |
|
1667 |
const time_t * const timep; |
|
1668 |
char * buf; |
|
1669 |
{ |
|
1670 |
struct tm tm; |
|
1671 |
||
1672 |
return asctime_r(localtime_r(timep, &tm), buf); |
|
1673 |
} |
|
1674 |
||
1675 |
/* |
|
1676 |
** Adapted from code provided by Robert Elz, who writes: |
|
1677 |
** The "best" way to do mktime I think is based on an idea of Bob |
|
1678 |
** Kridle's (so its said...) from a long time ago. |
|
1679 |
** [kridle@xinet.com as of 1996-01-16.] |
|
1680 |
** It does a binary search of the time_t space. Since time_t's are |
|
1681 |
** just 32 bits, its a max of 32 iterations (even at 64 bits it |
|
1682 |
** would still be very reasonable). |
|
1683 |
*/ |
|
1684 |
||
1685 |
#ifndef WRONG |
|
1686 |
#define WRONG (-1) |
|
1687 |
#endif /* !defined WRONG */ |
|
1688 |
||
1689 |
/* |
|
1690 |
** Simplified normalize logic courtesy Paul Eggert (eggert@twinsun.com). |
|
1691 |
*/ |
|
1692 |
||
1693 |
static int |
|
1694 |
increment_overflow(number, delta) |
|
1695 |
int * number; |
|
1696 |
int delta; |
|
1697 |
{ |
|
1698 |
int number0; |
|
1699 |
||
1700 |
number0 = *number; |
|
1701 |
*number += delta; |
|
1702 |
return (*number < number0) != (delta < 0); |
|
1703 |
} |
|
1704 |
||
1705 |
static int |
|
1706 |
normalize_overflow(tensptr, unitsptr, base) |
|
1707 |
int * const tensptr; |
|
1708 |
int * const unitsptr; |
|
1709 |
const int base; |
|
1710 |
{ |
|
1711 |
int tensdelta; |
|
1712 |
||
1713 |
tensdelta = (*unitsptr >= 0) ? |
|
1714 |
(*unitsptr / base) : |
|
1715 |
(-1 - (-1 - *unitsptr) / base); |
|
1716 |
*unitsptr -= tensdelta * base; |
|
1717 |
return increment_overflow(tensptr, tensdelta); |
|
1718 |
} |
|
1719 |
||
1720 |
static int |
|
1721 |
tmcomp(atmp, btmp) |
|
1722 |
const struct tm * const atmp; |
|
1723 |
const struct tm * const btmp; |
|
1724 |
{ |
|
1725 |
int result; |
|
1726 |
||
1727 |
if ((result = (atmp->tm_year - btmp->tm_year)) == 0 && |
|
1728 |
(result = (atmp->tm_mon - btmp->tm_mon)) == 0 && |
|
1729 |
(result = (atmp->tm_mday - btmp->tm_mday)) == 0 && |
|
1730 |
(result = (atmp->tm_hour - btmp->tm_hour)) == 0 && |
|
1731 |
(result = (atmp->tm_min - btmp->tm_min)) == 0) |
|
1732 |
result = atmp->tm_sec - btmp->tm_sec; |
|
1733 |
return result; |
|
1734 |
} |
|
1735 |
||
1736 |
static time_t |
|
1737 |
time2sub(tmp, funcp, offset, okayp, do_norm_secs) |
|
1738 |
struct tm * const tmp; |
|
1739 |
void (* const funcp)(const time_t*, long, struct tm*); |
|
1740 |
const long offset; |
|
1741 |
int * const okayp; |
|
1742 |
const int do_norm_secs; |
|
1743 |
{ |
|
1744 |
const struct state * sp; |
|
1745 |
int dir; |
|
1746 |
int bits; |
|
1747 |
int i, j ; |
|
1748 |
int saved_seconds; |
|
1749 |
time_t newt; |
|
1750 |
time_t t; |
|
1751 |
struct tm yourtm, mytm; |
|
1752 |
||
1753 |
*okayp = FALSE; |
|
1754 |
yourtm = *tmp; |
|
1755 |
if (do_norm_secs) { |
|
1756 |
if (normalize_overflow(&yourtm.tm_min, &yourtm.tm_sec, |
|
1757 |
SECSPERMIN)) |
|
1758 |
return WRONG; |
|
1759 |
} |
|
1760 |
if (normalize_overflow(&yourtm.tm_hour, &yourtm.tm_min, MINSPERHOUR)) |
|
1761 |
return WRONG; |
|
1762 |
if (normalize_overflow(&yourtm.tm_mday, &yourtm.tm_hour, HOURSPERDAY)) |
|
1763 |
return WRONG; |
|
1764 |
if (normalize_overflow(&yourtm.tm_year, &yourtm.tm_mon, MONSPERYEAR)) |
|
1765 |
return WRONG; |
|
1766 |
/* |
|
1767 |
** Turn yourtm.tm_year into an actual year number for now. |
|
1768 |
** It is converted back to an offset from TM_YEAR_BASE later. |
|
1769 |
*/ |
|
1770 |
if (increment_overflow(&yourtm.tm_year, TM_YEAR_BASE)) |
|
1771 |
return WRONG; |
|
1772 |
while (yourtm.tm_mday <= 0) { |
|
1773 |
if (increment_overflow(&yourtm.tm_year, -1)) |
|
1774 |
return WRONG; |
|
1775 |
i = yourtm.tm_year + (1 < yourtm.tm_mon); |
|
1776 |
yourtm.tm_mday += year_lengths[isleap(i)]; |
|
1777 |
} |
|
1778 |
while (yourtm.tm_mday > DAYSPERLYEAR) { |
|
1779 |
i = yourtm.tm_year + (1 < yourtm.tm_mon); |
|
1780 |
yourtm.tm_mday -= year_lengths[isleap(i)]; |
|
1781 |
if (increment_overflow(&yourtm.tm_year, 1)) |
|
1782 |
return WRONG; |
|
1783 |
} |
|
1784 |
for ( ; ; ) { |
|
1785 |
i = mon_lengths[isleap(yourtm.tm_year)][yourtm.tm_mon]; |
|
1786 |
if (yourtm.tm_mday <= i) |
|
1787 |
break; |
|
1788 |
yourtm.tm_mday -= i; |
|
1789 |
if (++yourtm.tm_mon >= MONSPERYEAR) { |
|
1790 |
yourtm.tm_mon = 0; |
|
1791 |
if (increment_overflow(&yourtm.tm_year, 1)) |
|
1792 |
return WRONG; |
|
1793 |
} |
|
1794 |
} |
|
1795 |
if (increment_overflow(&yourtm.tm_year, -TM_YEAR_BASE)) |
|
1796 |
return WRONG; |
|
1797 |
/* Don't go below 1900 for POLA */ |
|
1798 |
if (yourtm.tm_year < 0) |
|
1799 |
return WRONG; |
|
1800 |
if (yourtm.tm_sec >= 0 && yourtm.tm_sec < SECSPERMIN) |
|
1801 |
saved_seconds = 0; |
|
1802 |
else if (yourtm.tm_year + TM_YEAR_BASE < EPOCH_YEAR) { |
|
1803 |
/* |
|
1804 |
** We can't set tm_sec to 0, because that might push the |
|
1805 |
** time below the minimum representable time. |
|
1806 |
** Set tm_sec to 59 instead. |
|
1807 |
** This assumes that the minimum representable time is |
|
1808 |
** not in the same minute that a leap second was deleted from, |
|
1809 |
** which is a safer assumption than using 58 would be. |
|
1810 |
*/ |
|
1811 |
if (increment_overflow(&yourtm.tm_sec, 1 - SECSPERMIN)) |
|
1812 |
return WRONG; |
|
1813 |
saved_seconds = yourtm.tm_sec; |
|
1814 |
yourtm.tm_sec = SECSPERMIN - 1; |
|
1815 |
} else { |
|
1816 |
saved_seconds = yourtm.tm_sec; |
|
1817 |
yourtm.tm_sec = 0; |
|
1818 |
} |
|
1819 |
/* |
|
1820 |
** Divide the search space in half |
|
1821 |
** (this works whether time_t is signed or unsigned). |
|
1822 |
*/ |
|
1823 |
bits = TYPE_BIT(time_t) - 1; |
|
1824 |
/* |
|
1825 |
** If we have more than this, we will overflow tm_year for tmcomp(). |
|
1826 |
** We should really return an error if we cannot represent it. |
|
1827 |
*/ |
|
1828 |
if (bits > 56) |
|
1829 |
bits = 56; |
|
1830 |
/* |
|
1831 |
** If time_t is signed, then 0 is just above the median, |
|
1832 |
** assuming two's complement arithmetic. |
|
1833 |
** If time_t is unsigned, then (1 << bits) is just above the median. |
|
1834 |
*/ |
|
1835 |
t = TYPE_SIGNED(time_t) ? 0 : (((time_t) 1) << bits); |
|
1836 |
for ( ; ; ) { |
|
1837 |
(*funcp)(&t, offset, &mytm); |
|
1838 |
dir = tmcomp(&mytm, &yourtm); |
|
1839 |
if (dir != 0) { |
|
1840 |
if (bits-- < 0) |
|
1841 |
return WRONG; |
|
1842 |
if (bits < 0) |
|
1843 |
--t; /* may be needed if new t is minimal */ |
|
1844 |
else if (dir > 0) |
|
1845 |
t -= ((time_t) 1) << bits; |
|
1846 |
else t += ((time_t) 1) << bits; |
|
1847 |
continue; |
|
1848 |
} |
|
1849 |
if (yourtm.tm_isdst < 0 || mytm.tm_isdst == yourtm.tm_isdst) |
|
1850 |
break; |
|
1851 |
/* |
|
1852 |
** Right time, wrong type. |
|
1853 |
** Hunt for right time, right type. |
|
1854 |
** It's okay to guess wrong since the guess |
|
1855 |
** gets checked. |
|
1856 |
*/ |
|
1857 |
sp = (funcp == localsub) ? lclptr : gmtptr; |
|
1858 |
#ifdef ALL_STATE |
|
1859 |
if (sp == NULL) |
|
1860 |
return WRONG; |
|
1861 |
#endif /* defined ALL_STATE */ |
|
1862 |
for (i = sp->typecnt - 1; i >= 0; --i) { |
|
1863 |
if (sp->ttis[i].tt_isdst != yourtm.tm_isdst) |
|
1864 |
continue; |
|
1865 |
for (j = sp->typecnt - 1; j >= 0; --j) { |
|
1866 |
if (sp->ttis[j].tt_isdst == yourtm.tm_isdst) |
|
1867 |
continue; |
|
1868 |
newt = t + sp->ttis[j].tt_gmtoff - |
|
1869 |
sp->ttis[i].tt_gmtoff; |
|
1870 |
(*funcp)(&newt, offset, &mytm); |
|
1871 |
if (tmcomp(&mytm, &yourtm) != 0) |
|
1872 |
continue; |
|
1873 |
if (mytm.tm_isdst != yourtm.tm_isdst) |
|
1874 |
continue; |
|
1875 |
/* |
|
1876 |
** We have a match. |
|
1877 |
*/ |
|
1878 |
t = newt; |
|
1879 |
goto label; |
|
1880 |
} |
|
1881 |
} |
|
1882 |
return WRONG; |
|
1883 |
} |
|
1884 |
label: |
|
1885 |
newt = t + saved_seconds; |
|
1886 |
if ((newt < t) != (saved_seconds < 0)) |
|
1887 |
return WRONG; |
|
1888 |
t = newt; |
|
1889 |
(*funcp)(&t, offset, tmp); |
|
1890 |
*okayp = TRUE; |
|
1891 |
return t; |
|
1892 |
} |
|
1893 |
||
1894 |
static time_t |
|
1895 |
time2(tmp, funcp, offset, okayp) |
|
1896 |
struct tm * const tmp; |
|
1897 |
void (* const funcp)(const time_t*, long, struct tm*); |
|
1898 |
const long offset; |
|
1899 |
int * const okayp; |
|
1900 |
{ |
|
1901 |
time_t t; |
|
1902 |
||
1903 |
/* |
|
1904 |
** First try without normalization of seconds |
|
1905 |
** (in case tm_sec contains a value associated with a leap second). |
|
1906 |
** If that fails, try with normalization of seconds. |
|
1907 |
*/ |
|
1908 |
t = time2sub(tmp, funcp, offset, okayp, FALSE); |
|
1909 |
return *okayp ? t : time2sub(tmp, funcp, offset, okayp, TRUE); |
|
1910 |
} |
|
1911 |
||
1912 |
static time_t |
|
1913 |
time1(tmp, funcp, offset) |
|
1914 |
struct tm * const tmp; |
|
1915 |
void (* const funcp)(const time_t *, long, struct tm *); |
|
1916 |
const long offset; |
|
1917 |
{ |
|
1918 |
time_t t; |
|
1919 |
const struct state * sp; |
|
1920 |
int samei, otheri; |
|
1921 |
int sameind, otherind; |
|
1922 |
int i; |
|
1923 |
int nseen; |
|
1924 |
int seen[TZ_MAX_TYPES]; |
|
1925 |
int types[TZ_MAX_TYPES]; |
|
1926 |
int okay; |
|
1927 |
||
1928 |
/* #ifdef __SYMBIAN32__ |
|
1929 |
if (tmp->tm_isdst == 1) |
|
1930 |
tmp->tm_isdst = 0; |
|
1931 |
#endif //__SYMBIAN32__ */ |
|
1932 |
||
1933 |
if (tmp->tm_isdst > 1) |
|
1934 |
tmp->tm_isdst = 1; |
|
1935 |
t = time2(tmp, funcp, offset, &okay); |
|
1936 |
#ifdef PCTS |
|
1937 |
/* |
|
1938 |
** PCTS code courtesy Grant Sullivan (grant@osf.org). |
|
1939 |
*/ |
|
1940 |
if (okay) |
|
1941 |
return t; |
|
1942 |
if (tmp->tm_isdst < 0) |
|
1943 |
tmp->tm_isdst = 0; /* reset to std and try again */ |
|
1944 |
#endif /* defined PCTS */ |
|
1945 |
#ifndef PCTS |
|
1946 |
if (okay || tmp->tm_isdst < 0) |
|
1947 |
return t; |
|
1948 |
#endif /* !defined PCTS */ |
|
1949 |
/* |
|
1950 |
** We're supposed to assume that somebody took a time of one type |
|
1951 |
** and did some math on it that yielded a "struct tm" that's bad. |
|
1952 |
** We try to divine the type they started from and adjust to the |
|
1953 |
** type they need. |
|
1954 |
*/ |
|
1955 |
sp = (funcp == localsub) ? lclptr : gmtptr; |
|
1956 |
#ifdef ALL_STATE |
|
1957 |
if (sp == NULL) |
|
1958 |
return WRONG; |
|
1959 |
#endif /* defined ALL_STATE */ |
|
1960 |
for (i = 0; i < sp->typecnt; ++i) |
|
1961 |
seen[i] = FALSE; |
|
1962 |
nseen = 0; |
|
1963 |
for (i = sp->timecnt - 1; i >= 0; --i) |
|
1964 |
if (!seen[sp->types[i]]) { |
|
1965 |
seen[sp->types[i]] = TRUE; |
|
1966 |
types[nseen++] = sp->types[i]; |
|
1967 |
} |
|
1968 |
for (sameind = 0; sameind < nseen; ++sameind) { |
|
1969 |
samei = types[sameind]; |
|
1970 |
if (sp->ttis[samei].tt_isdst != tmp->tm_isdst) |
|
1971 |
continue; |
|
1972 |
for (otherind = 0; otherind < nseen; ++otherind) { |
|
1973 |
otheri = types[otherind]; |
|
1974 |
if (sp->ttis[otheri].tt_isdst == tmp->tm_isdst) |
|
1975 |
continue; |
|
1976 |
tmp->tm_sec += sp->ttis[otheri].tt_gmtoff - |
|
1977 |
sp->ttis[samei].tt_gmtoff; |
|
1978 |
tmp->tm_isdst = !tmp->tm_isdst; |
|
1979 |
t = time2(tmp, funcp, offset, &okay); |
|
1980 |
if (okay) |
|
1981 |
return t; |
|
1982 |
tmp->tm_sec -= sp->ttis[otheri].tt_gmtoff - |
|
1983 |
sp->ttis[samei].tt_gmtoff; |
|
1984 |
tmp->tm_isdst = !tmp->tm_isdst; |
|
1985 |
} |
|
1986 |
} |
|
1987 |
return WRONG; |
|
1988 |
} |
|
1989 |
||
1990 |
EXPORT_C |
|
1991 |
time_t |
|
1992 |
mktime(tmp) |
|
1993 |
struct tm * const tmp; |
|
1994 |
{ |
|
1995 |
time_t mktime_return_value; |
|
1996 |
struct tm local_tmp; |
|
1997 |
#ifdef __SYMBIAN32__ |
|
1998 |
int err = 0; |
|
1999 |
if(tmp==NULL) |
|
2000 |
return -1; |
|
2001 |
#endif |
|
2002 |
local_tmp = (*tmp); |
|
2003 |
_MUTEX_LOCK(&lcl_mutex); |
|
2004 |
tzset_basic(); |
|
2005 |
mktime_return_value = time1(tmp, localsub, 0L); |
|
2006 |
#ifdef __SYMBIAN32__ |
|
2007 |
if(getenv("TZ") == NULL) |
|
2008 |
{ |
|
2009 |
tmp->tm_isdst = local_tmp.tm_isdst; |
|
2010 |
tmp->tm_gmtoff = local_tmp.tm_gmtoff; |
|
2011 |
tmp->tm_zone = local_tmp.tm_zone; |
|
2012 |
||
2013 |
// if(mktime_return_value != WRONG) //temporay fix. Will be taken up during performance fix |
|
2014 |
// { |
|
2015 |
err = ConvertTime(ELocalToUtc,&mktime_return_value,tmp); |
|
2016 |
if(err) |
|
2017 |
{ |
|
2018 |
_MUTEX_UNLOCK(&lcl_mutex); |
|
2019 |
return(time_t)-1; |
|
2020 |
} |
|
2021 |
// } |
|
2022 |
} |
|
2023 |
#endif |
|
2024 |
_MUTEX_UNLOCK(&lcl_mutex); |
|
2025 |
return(mktime_return_value); |
|
2026 |
} |
|
2027 |
||
2028 |
#ifdef STD_INSPIRED |
|
2029 |
||
2030 |
#ifdef __SYMBIAN_COMPILE_UNUSED__ |
|
2031 |
time_t |
|
2032 |
timelocal(tmp) |
|
2033 |
struct tm * const tmp; |
|
2034 |
{ |
|
2035 |
tmp->tm_isdst = -1; /* in case it wasn't initialized */ |
|
2036 |
return mktime(tmp); |
|
2037 |
} |
|
2038 |
#endif //__SYMBIAN_COMPILE_UNUSED__ |
|
2039 |
EXPORT_C |
|
2040 |
time_t |
|
2041 |
timegm(tmp) |
|
2042 |
struct tm * const tmp; |
|
2043 |
{ |
|
2044 |
tmp->tm_isdst = 0; |
|
2045 |
return time1(tmp, gmtsub, 0L); |
|
2046 |
} |
|
2047 |
||
2048 |
#ifdef __SYMBIAN_COMPILE_UNUSED__ |
|
2049 |
time_t |
|
2050 |
timeoff(tmp, offset) |
|
2051 |
struct tm * const tmp; |
|
2052 |
const long offset; |
|
2053 |
{ |
|
2054 |
tmp->tm_isdst = 0; |
|
2055 |
return time1(tmp, gmtsub, offset); |
|
2056 |
} |
|
2057 |
#endif //__SYMBIAN_COMPILE_UNUSED__ |
|
2058 |
#endif /* defined STD_INSPIRED */ |
|
2059 |
||
2060 |
#ifdef CMUCS |
|
2061 |
||
2062 |
/* |
|
2063 |
** The following is supplied for compatibility with |
|
2064 |
** previous versions of the CMUCS runtime library. |
|
2065 |
*/ |
|
2066 |
||
2067 |
long |
|
2068 |
gtime(tmp) |
|
2069 |
struct tm * const tmp; |
|
2070 |
{ |
|
2071 |
const time_t t = mktime(tmp); |
|
2072 |
||
2073 |
if (t == WRONG) |
|
2074 |
return -1; |
|
2075 |
return t; |
|
2076 |
} |
|
2077 |
||
2078 |
#endif /* defined CMUCS */ |
|
2079 |
||
2080 |
/* |
|
2081 |
** XXX--is the below the right way to conditionalize?? |
|
2082 |
*/ |
|
2083 |
||
2084 |
#ifdef STD_INSPIRED |
|
2085 |
#ifdef __SYMBIAN_COMPILE_UNUSED__ |
|
2086 |
/* |
|
2087 |
** IEEE Std 1003.1-1988 (POSIX) legislates that 536457599 |
|
2088 |
** shall correspond to "Wed Dec 31 23:59:59 UTC 1986", which |
|
2089 |
** is not the case if we are accounting for leap seconds. |
|
2090 |
** So, we provide the following conversion routines for use |
|
2091 |
** when exchanging timestamps with POSIX conforming systems. |
|
2092 |
*/ |
|
2093 |
||
2094 |
static long |
|
2095 |
leapcorr(timep) |
|
2096 |
time_t * timep; |
|
2097 |
{ |
|
2098 |
struct state * sp; |
|
2099 |
struct lsinfo * lp; |
|
2100 |
int i; |
|
2101 |
||
2102 |
sp = lclptr; |
|
2103 |
i = sp->leapcnt; |
|
2104 |
while (--i >= 0) { |
|
2105 |
lp = &sp->lsis[i]; |
|
2106 |
if (*timep >= lp->ls_trans) |
|
2107 |
return lp->ls_corr; |
|
2108 |
} |
|
2109 |
return 0; |
|
2110 |
} |
|
2111 |
||
2112 |
time_t |
|
2113 |
time2posix(t) |
|
2114 |
time_t t; |
|
2115 |
{ |
|
2116 |
tzset(); |
|
2117 |
return t - leapcorr(&t); |
|
2118 |
} |
|
2119 |
||
2120 |
time_t |
|
2121 |
posix2time(t) |
|
2122 |
time_t t; |
|
2123 |
{ |
|
2124 |
time_t x; |
|
2125 |
time_t y; |
|
2126 |
||
2127 |
tzset(); |
|
2128 |
/* |
|
2129 |
** For a positive leap second hit, the result |
|
2130 |
** is not unique. For a negative leap second |
|
2131 |
** hit, the corresponding time doesn't exist, |
|
2132 |
** so we return an adjacent second. |
|
2133 |
*/ |
|
2134 |
x = t + leapcorr(&t); |
|
2135 |
y = x - leapcorr(&x); |
|
2136 |
if (y < t) { |
|
2137 |
do { |
|
2138 |
x++; |
|
2139 |
y = x - leapcorr(&x); |
|
2140 |
} while (y < t); |
|
2141 |
if (t != y) |
|
2142 |
return x - 1; |
|
2143 |
} else if (y > t) { |
|
2144 |
do { |
|
2145 |
--x; |
|
2146 |
y = x - leapcorr(&x); |
|
2147 |
} while (y > t); |
|
2148 |
if (t != y) |
|
2149 |
return x + 1; |
|
2150 |
} |
|
2151 |
return x; |
|
2152 |
} |
|
2153 |
#endif //__SYMBIAN_COMPILE_UNUSED__ |
|
2154 |
#endif /* defined STD_INSPIRED */ |