Commit | Line | Data |
16433e2b |
1 | #ifdef __cplusplus |
c944940b |
2 | extern "C" { |
16433e2b |
3 | #endif |
4 | #include "EXTERN.h" |
5 | #include "perl.h" |
6 | #include "XSUB.h" |
7 | #include <time.h> |
8 | #ifdef __cplusplus |
9 | } |
10 | #endif |
11 | |
12 | /* XXX struct tm on some systems (SunOS4/BSD) contains extra (non POSIX) |
13 | * fields for which we don't have Configure support yet: |
14 | * char *tm_zone; -- abbreviation of timezone name |
15 | * long tm_gmtoff; -- offset from GMT in seconds |
16 | * To workaround core dumps from the uninitialised tm_zone we get the |
17 | * system to give us a reasonable struct to copy. This fix means that |
18 | * strftime uses the tm_zone and tm_gmtoff values returned by |
19 | * localtime(time()). That should give the desired result most of the |
20 | * time. But probably not always! |
21 | * |
22 | * This is a temporary workaround to be removed once Configure |
23 | * support is added and NETaa14816 is considered in full. |
24 | * It does not address tzname aspects of NETaa14816. |
25 | */ |
26 | #if !defined(HAS_GNULIBC) |
27 | # ifndef STRUCT_TM_HASZONE |
28 | # define STRUCT_TM_HASZONE |
29 | # else |
30 | # define USE_TM_GMTOFF |
31 | # endif |
32 | #endif |
33 | |
34 | #define DAYS_PER_YEAR 365 |
35 | #define DAYS_PER_QYEAR (4*DAYS_PER_YEAR+1) |
36 | #define DAYS_PER_CENT (25*DAYS_PER_QYEAR-1) |
37 | #define DAYS_PER_QCENT (4*DAYS_PER_CENT+1) |
38 | #define SECS_PER_HOUR (60*60) |
39 | #define SECS_PER_DAY (24*SECS_PER_HOUR) |
40 | /* parentheses deliberately absent on these two, otherwise they don't work */ |
41 | #define MONTH_TO_DAYS 153/5 |
42 | #define DAYS_TO_MONTH 5/153 |
43 | /* offset to bias by March (month 4) 1st between month/mday & year finding */ |
44 | #define YEAR_ADJUST (4*MONTH_TO_DAYS+1) |
45 | /* as used here, the algorithm leaves Sunday as day 1 unless we adjust it */ |
46 | #define WEEKDAY_BIAS 6 /* (1+6)%7 makes Sunday 0 again */ |
47 | |
48 | #ifdef STRUCT_TM_HASZONE |
49 | static void |
50 | my_init_tm(struct tm *ptm) /* see mktime, strftime and asctime */ |
51 | { |
52 | Time_t now; |
53 | (void)time(&now); |
54 | Copy(localtime(&now), ptm, 1, struct tm); |
55 | } |
56 | |
57 | #else |
58 | # define my_init_tm(ptm) |
59 | #endif |
60 | |
61 | /* |
62 | * my_mini_mktime - normalise struct tm values without the localtime() |
124e6c84 |
63 | * semantics (and overhead) of mktime(). Stolen shamelessly from Perl's |
64 | * Perl_mini_mktime() in util.c - for details on the algorithm, see that |
65 | * file. |
16433e2b |
66 | */ |
67 | static void |
68 | my_mini_mktime(struct tm *ptm) |
69 | { |
70 | int yearday; |
71 | int secs; |
72 | int month, mday, year, jday; |
73 | int odd_cent, odd_year; |
74 | |
16433e2b |
75 | year = 1900 + ptm->tm_year; |
76 | month = ptm->tm_mon; |
77 | mday = ptm->tm_mday; |
78 | /* allow given yday with no month & mday to dominate the result */ |
79 | if (ptm->tm_yday >= 0 && mday <= 0 && month <= 0) { |
80 | month = 0; |
81 | mday = 0; |
82 | jday = 1 + ptm->tm_yday; |
83 | } |
84 | else { |
85 | jday = 0; |
86 | } |
87 | if (month >= 2) |
88 | month+=2; |
89 | else |
90 | month+=14, year--; |
91 | |
92 | yearday = DAYS_PER_YEAR * year + year/4 - year/100 + year/400; |
93 | yearday += month*MONTH_TO_DAYS + mday + jday; |
94 | /* |
95 | * Note that we don't know when leap-seconds were or will be, |
96 | * so we have to trust the user if we get something which looks |
97 | * like a sensible leap-second. Wild values for seconds will |
98 | * be rationalised, however. |
99 | */ |
100 | if ((unsigned) ptm->tm_sec <= 60) { |
101 | secs = 0; |
102 | } |
103 | else { |
104 | secs = ptm->tm_sec; |
105 | ptm->tm_sec = 0; |
106 | } |
107 | secs += 60 * ptm->tm_min; |
108 | secs += SECS_PER_HOUR * ptm->tm_hour; |
109 | if (secs < 0) { |
110 | if (secs-(secs/SECS_PER_DAY*SECS_PER_DAY) < 0) { |
111 | /* got negative remainder, but need positive time */ |
112 | /* back off an extra day to compensate */ |
113 | yearday += (secs/SECS_PER_DAY)-1; |
114 | secs -= SECS_PER_DAY * (secs/SECS_PER_DAY - 1); |
115 | } |
116 | else { |
117 | yearday += (secs/SECS_PER_DAY); |
118 | secs -= SECS_PER_DAY * (secs/SECS_PER_DAY); |
119 | } |
120 | } |
121 | else if (secs >= SECS_PER_DAY) { |
122 | yearday += (secs/SECS_PER_DAY); |
123 | secs %= SECS_PER_DAY; |
124 | } |
125 | ptm->tm_hour = secs/SECS_PER_HOUR; |
126 | secs %= SECS_PER_HOUR; |
127 | ptm->tm_min = secs/60; |
128 | secs %= 60; |
129 | ptm->tm_sec += secs; |
130 | /* done with time of day effects */ |
131 | /* |
132 | * The algorithm for yearday has (so far) left it high by 428. |
133 | * To avoid mistaking a legitimate Feb 29 as Mar 1, we need to |
134 | * bias it by 123 while trying to figure out what year it |
135 | * really represents. Even with this tweak, the reverse |
136 | * translation fails for years before A.D. 0001. |
137 | * It would still fail for Feb 29, but we catch that one below. |
138 | */ |
139 | jday = yearday; /* save for later fixup vis-a-vis Jan 1 */ |
140 | yearday -= YEAR_ADJUST; |
141 | year = (yearday / DAYS_PER_QCENT) * 400; |
142 | yearday %= DAYS_PER_QCENT; |
143 | odd_cent = yearday / DAYS_PER_CENT; |
144 | year += odd_cent * 100; |
145 | yearday %= DAYS_PER_CENT; |
146 | year += (yearday / DAYS_PER_QYEAR) * 4; |
147 | yearday %= DAYS_PER_QYEAR; |
148 | odd_year = yearday / DAYS_PER_YEAR; |
149 | year += odd_year; |
150 | yearday %= DAYS_PER_YEAR; |
151 | if (!yearday && (odd_cent==4 || odd_year==4)) { /* catch Feb 29 */ |
152 | month = 1; |
153 | yearday = 29; |
154 | } |
155 | else { |
156 | yearday += YEAR_ADJUST; /* recover March 1st crock */ |
157 | month = yearday*DAYS_TO_MONTH; |
158 | yearday -= month*MONTH_TO_DAYS; |
159 | /* recover other leap-year adjustment */ |
160 | if (month > 13) { |
161 | month-=14; |
162 | year++; |
163 | } |
164 | else { |
165 | month-=2; |
166 | } |
167 | } |
168 | ptm->tm_year = year - 1900; |
169 | if (yearday) { |
170 | ptm->tm_mday = yearday; |
171 | ptm->tm_mon = month; |
172 | } |
173 | else { |
174 | ptm->tm_mday = 31; |
175 | ptm->tm_mon = month - 1; |
176 | } |
177 | /* re-build yearday based on Jan 1 to get tm_yday */ |
178 | year--; |
179 | yearday = year*DAYS_PER_YEAR + year/4 - year/100 + year/400; |
180 | yearday += 14*MONTH_TO_DAYS + 1; |
181 | ptm->tm_yday = jday - yearday; |
182 | /* fix tm_wday if not overridden by caller */ |
183 | ptm->tm_wday = (jday + WEEKDAY_BIAS) % 7; |
184 | } |
185 | |
124e6c84 |
186 | /* No strptime on Win32 or QNX4 */ |
187 | #if defined(WIN32) || (defined(__QNX__) && defined(__WATCOMC__)) |
16433e2b |
188 | #define strncasecmp(x,y,n) strnicmp(x,y,n) |
be8a15fc |
189 | |
190 | #if defined(WIN32) |
0db9c0cf |
191 | #if defined(__BORLANDC__) |
192 | void * __cdecl _EXPFUNC alloca(_SIZE_T __size); |
193 | #else |
16433e2b |
194 | #define alloca _alloca |
be8a15fc |
195 | #endif |
0db9c0cf |
196 | #endif |
124e6c84 |
197 | |
198 | /* strptime copied from freebsd with the following copyright: */ |
199 | /* |
200 | * Copyright (c) 1994 Powerdog Industries. All rights reserved. |
201 | * |
202 | * Redistribution and use in source and binary forms, with or without |
203 | * modification, are permitted provided that the following conditions |
204 | * are met: |
205 | * 1. Redistributions of source code must retain the above copyright |
206 | * notice, this list of conditions and the following disclaimer. |
207 | * 2. Redistributions in binary form must reproduce the above copyright |
208 | * notice, this list of conditions and the following disclaimer |
209 | * in the documentation and/or other materials provided with the |
210 | * distribution. |
211 | * 3. All advertising materials mentioning features or use of this |
212 | * software must display the following acknowledgement: |
213 | * This product includes software developed by Powerdog Industries. |
214 | * 4. The name of Powerdog Industries may not be used to endorse or |
215 | * promote products derived from this software without specific prior |
216 | * written permission. |
217 | * |
218 | * THIS SOFTWARE IS PROVIDED BY POWERDOG INDUSTRIES ``AS IS'' AND ANY |
219 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
220 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
221 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE POWERDOG INDUSTRIES BE |
222 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
223 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
224 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
225 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
226 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
227 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
228 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
229 | */ |
230 | |
231 | #ifndef lint |
232 | #ifndef NOID |
233 | static char copyright[] = |
234 | "@(#) Copyright (c) 1994 Powerdog Industries. All rights reserved."; |
235 | static char sccsid[] = "@(#)strptime.c 0.1 (Powerdog) 94/03/27"; |
236 | #endif /* !defined NOID */ |
237 | #endif /* not lint */ |
be8a15fc |
238 | |
16433e2b |
239 | #include <time.h> |
240 | #include <ctype.h> |
241 | #include <string.h> |
242 | #ifdef _THREAD_SAFE |
243 | #include <pthread.h> |
244 | #include "pthread_private.h" |
245 | #endif /* _THREAD_SAFE */ |
246 | |
247 | static char * _strptime(const char *, const char *, struct tm *); |
248 | |
249 | #ifdef _THREAD_SAFE |
250 | static struct pthread_mutex _gotgmt_mutexd = PTHREAD_MUTEX_STATIC_INITIALIZER; |
251 | static pthread_mutex_t gotgmt_mutex = &_gotgmt_mutexd; |
252 | #endif |
253 | static int got_GMT; |
254 | |
255 | #define asizeof(a) (sizeof (a) / sizeof ((a)[0])) |
256 | |
257 | struct lc_time_T { |
258 | const char * mon[12]; |
259 | const char * month[12]; |
260 | const char * wday[7]; |
261 | const char * weekday[7]; |
262 | const char * X_fmt; |
263 | const char * x_fmt; |
264 | const char * c_fmt; |
265 | const char * am; |
266 | const char * pm; |
267 | const char * date_fmt; |
268 | const char * alt_month[12]; |
269 | const char * Ef_fmt; |
270 | const char * EF_fmt; |
271 | }; |
272 | |
273 | struct lc_time_T _time_localebuf; |
274 | int _time_using_locale; |
275 | |
276 | const struct lc_time_T _C_time_locale = { |
277 | { |
278 | "Jan", "Feb", "Mar", "Apr", "May", "Jun", |
279 | "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" |
280 | }, { |
281 | "January", "February", "March", "April", "May", "June", |
282 | "July", "August", "September", "October", "November", "December" |
283 | }, { |
284 | "Sun", "Mon", "Tue", "Wed", |
285 | "Thu", "Fri", "Sat" |
286 | }, { |
287 | "Sunday", "Monday", "Tuesday", "Wednesday", |
288 | "Thursday", "Friday", "Saturday" |
289 | }, |
290 | |
291 | /* X_fmt */ |
292 | "%H:%M:%S", |
293 | |
294 | /* |
295 | ** x_fmt |
296 | ** Since the C language standard calls for |
297 | ** "date, using locale's date format," anything goes. |
298 | ** Using just numbers (as here) makes Quakers happier; |
299 | ** it's also compatible with SVR4. |
300 | */ |
301 | "%m/%d/%y", |
302 | |
303 | /* |
304 | ** c_fmt (ctime-compatible) |
305 | ** Not used, just compatibility placeholder. |
306 | */ |
307 | NULL, |
308 | |
309 | /* am */ |
310 | "AM", |
311 | |
312 | /* pm */ |
313 | "PM", |
314 | |
315 | /* date_fmt */ |
316 | "%a %Ef %X %Z %Y", |
317 | |
318 | { |
319 | "January", "February", "March", "April", "May", "June", |
320 | "July", "August", "September", "October", "November", "December" |
321 | }, |
322 | |
323 | /* Ef_fmt |
324 | ** To determine short months / day order |
325 | */ |
326 | "%b %e", |
327 | |
328 | /* EF_fmt |
329 | ** To determine long months / day order |
330 | */ |
331 | "%B %e" |
332 | }; |
333 | |
334 | #define Locale (&_C_time_locale) |
335 | |
336 | static char * |
337 | _strptime(const char *buf, const char *fmt, struct tm *tm) |
338 | { |
339 | char c; |
340 | const char *ptr; |
341 | int i, |
342 | len; |
343 | int Ealternative, Oalternative; |
344 | |
345 | ptr = fmt; |
346 | while (*ptr != 0) { |
347 | if (*buf == 0) |
348 | break; |
349 | |
350 | c = *ptr++; |
351 | |
352 | if (c != '%') { |
353 | if (isspace((unsigned char)c)) |
354 | while (*buf != 0 && isspace((unsigned char)*buf)) |
355 | buf++; |
356 | else if (c != *buf++) |
357 | return 0; |
358 | continue; |
359 | } |
360 | |
361 | Ealternative = 0; |
362 | Oalternative = 0; |
363 | label: |
364 | c = *ptr++; |
365 | switch (c) { |
366 | case 0: |
367 | case '%': |
368 | if (*buf++ != '%') |
369 | return 0; |
370 | break; |
371 | |
372 | case '+': |
373 | buf = _strptime(buf, Locale->date_fmt, tm); |
374 | if (buf == 0) |
375 | return 0; |
376 | break; |
377 | |
378 | case 'C': |
379 | if (!isdigit((unsigned char)*buf)) |
380 | return 0; |
381 | |
382 | /* XXX This will break for 3-digit centuries. */ |
383 | len = 2; |
384 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
385 | i *= 10; |
386 | i += *buf - '0'; |
387 | len--; |
388 | } |
389 | if (i < 19) |
390 | return 0; |
391 | |
392 | tm->tm_year = i * 100 - 1900; |
393 | break; |
394 | |
395 | case 'c': |
396 | /* NOTE: c_fmt is intentionally ignored */ |
397 | buf = _strptime(buf, "%a %Ef %T %Y", tm); |
398 | if (buf == 0) |
399 | return 0; |
400 | break; |
401 | |
402 | case 'D': |
403 | buf = _strptime(buf, "%m/%d/%y", tm); |
404 | if (buf == 0) |
405 | return 0; |
406 | break; |
407 | |
408 | case 'E': |
409 | if (Ealternative || Oalternative) |
410 | break; |
411 | Ealternative++; |
412 | goto label; |
413 | |
414 | case 'O': |
415 | if (Ealternative || Oalternative) |
416 | break; |
417 | Oalternative++; |
418 | goto label; |
419 | |
420 | case 'F': |
421 | case 'f': |
422 | if (!Ealternative) |
423 | break; |
424 | buf = _strptime(buf, (c == 'f') ? Locale->Ef_fmt : Locale->EF_fmt, tm); |
425 | if (buf == 0) |
426 | return 0; |
427 | break; |
428 | |
429 | case 'R': |
430 | buf = _strptime(buf, "%H:%M", tm); |
431 | if (buf == 0) |
432 | return 0; |
433 | break; |
434 | |
435 | case 'r': |
436 | buf = _strptime(buf, "%I:%M:%S %p", tm); |
437 | if (buf == 0) |
438 | return 0; |
439 | break; |
440 | |
441 | case 'T': |
442 | buf = _strptime(buf, "%H:%M:%S", tm); |
443 | if (buf == 0) |
444 | return 0; |
445 | break; |
446 | |
447 | case 'X': |
448 | buf = _strptime(buf, Locale->X_fmt, tm); |
449 | if (buf == 0) |
450 | return 0; |
451 | break; |
452 | |
453 | case 'x': |
454 | buf = _strptime(buf, Locale->x_fmt, tm); |
455 | if (buf == 0) |
456 | return 0; |
457 | break; |
458 | |
459 | case 'j': |
460 | if (!isdigit((unsigned char)*buf)) |
461 | return 0; |
462 | |
463 | len = 3; |
464 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
465 | i *= 10; |
466 | i += *buf - '0'; |
467 | len--; |
468 | } |
469 | if (i < 1 || i > 366) |
470 | return 0; |
471 | |
472 | tm->tm_yday = i - 1; |
473 | break; |
474 | |
475 | case 'M': |
476 | case 'S': |
477 | if (*buf == 0 || isspace((unsigned char)*buf)) |
478 | break; |
479 | |
480 | if (!isdigit((unsigned char)*buf)) |
481 | return 0; |
482 | |
483 | len = 2; |
484 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
485 | i *= 10; |
486 | i += *buf - '0'; |
487 | len--; |
488 | } |
489 | |
490 | if (c == 'M') { |
491 | if (i > 59) |
492 | return 0; |
493 | tm->tm_min = i; |
494 | } else { |
495 | if (i > 60) |
496 | return 0; |
497 | tm->tm_sec = i; |
498 | } |
499 | |
500 | if (*buf != 0 && isspace((unsigned char)*buf)) |
501 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
502 | ptr++; |
503 | break; |
504 | |
505 | case 'H': |
506 | case 'I': |
507 | case 'k': |
508 | case 'l': |
509 | /* |
510 | * Of these, %l is the only specifier explicitly |
511 | * documented as not being zero-padded. However, |
512 | * there is no harm in allowing zero-padding. |
513 | * |
514 | * XXX The %l specifier may gobble one too many |
515 | * digits if used incorrectly. |
516 | */ |
517 | if (!isdigit((unsigned char)*buf)) |
518 | return 0; |
519 | |
520 | len = 2; |
521 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
522 | i *= 10; |
523 | i += *buf - '0'; |
524 | len--; |
525 | } |
526 | if (c == 'H' || c == 'k') { |
527 | if (i > 23) |
528 | return 0; |
529 | } else if (i > 12) |
530 | return 0; |
531 | |
532 | tm->tm_hour = i; |
533 | |
534 | if (*buf != 0 && isspace((unsigned char)*buf)) |
535 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
536 | ptr++; |
537 | break; |
538 | |
539 | case 'p': |
540 | /* |
541 | * XXX This is bogus if parsed before hour-related |
542 | * specifiers. |
543 | */ |
544 | len = strlen(Locale->am); |
545 | if (strncasecmp(buf, Locale->am, len) == 0) { |
546 | if (tm->tm_hour > 12) |
547 | return 0; |
548 | if (tm->tm_hour == 12) |
549 | tm->tm_hour = 0; |
550 | buf += len; |
551 | break; |
552 | } |
553 | |
554 | len = strlen(Locale->pm); |
555 | if (strncasecmp(buf, Locale->pm, len) == 0) { |
556 | if (tm->tm_hour > 12) |
557 | return 0; |
558 | if (tm->tm_hour != 12) |
559 | tm->tm_hour += 12; |
560 | buf += len; |
561 | break; |
562 | } |
563 | |
564 | return 0; |
565 | |
566 | case 'A': |
567 | case 'a': |
568 | for (i = 0; i < asizeof(Locale->weekday); i++) { |
569 | if (c == 'A') { |
570 | len = strlen(Locale->weekday[i]); |
571 | if (strncasecmp(buf, |
572 | Locale->weekday[i], |
573 | len) == 0) |
574 | break; |
575 | } else { |
576 | len = strlen(Locale->wday[i]); |
577 | if (strncasecmp(buf, |
578 | Locale->wday[i], |
579 | len) == 0) |
580 | break; |
581 | } |
582 | } |
583 | if (i == asizeof(Locale->weekday)) |
584 | return 0; |
585 | |
586 | tm->tm_wday = i; |
587 | buf += len; |
588 | break; |
589 | |
590 | case 'U': |
591 | case 'W': |
592 | /* |
593 | * XXX This is bogus, as we can not assume any valid |
594 | * information present in the tm structure at this |
595 | * point to calculate a real value, so just check the |
596 | * range for now. |
597 | */ |
598 | if (!isdigit((unsigned char)*buf)) |
599 | return 0; |
600 | |
601 | len = 2; |
602 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
603 | i *= 10; |
604 | i += *buf - '0'; |
605 | len--; |
606 | } |
607 | if (i > 53) |
608 | return 0; |
609 | |
610 | if (*buf != 0 && isspace((unsigned char)*buf)) |
611 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
612 | ptr++; |
613 | break; |
614 | |
615 | case 'w': |
616 | if (!isdigit((unsigned char)*buf)) |
617 | return 0; |
618 | |
619 | i = *buf - '0'; |
620 | if (i > 6) |
621 | return 0; |
622 | |
623 | tm->tm_wday = i; |
624 | |
625 | if (*buf != 0 && isspace((unsigned char)*buf)) |
626 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
627 | ptr++; |
628 | break; |
629 | |
630 | case 'd': |
631 | case 'e': |
632 | /* |
633 | * The %e specifier is explicitly documented as not |
634 | * being zero-padded but there is no harm in allowing |
635 | * such padding. |
636 | * |
637 | * XXX The %e specifier may gobble one too many |
638 | * digits if used incorrectly. |
639 | */ |
640 | if (!isdigit((unsigned char)*buf)) |
641 | return 0; |
642 | |
643 | len = 2; |
644 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
645 | i *= 10; |
646 | i += *buf - '0'; |
647 | len--; |
648 | } |
649 | if (i > 31) |
650 | return 0; |
651 | |
652 | tm->tm_mday = i; |
653 | |
654 | if (*buf != 0 && isspace((unsigned char)*buf)) |
655 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
656 | ptr++; |
657 | break; |
658 | |
659 | case 'B': |
660 | case 'b': |
661 | case 'h': |
662 | for (i = 0; i < asizeof(Locale->month); i++) { |
663 | if (Oalternative) { |
664 | if (c == 'B') { |
665 | len = strlen(Locale->alt_month[i]); |
666 | if (strncasecmp(buf, |
667 | Locale->alt_month[i], |
668 | len) == 0) |
669 | break; |
670 | } |
671 | } else { |
672 | if (c == 'B') { |
673 | len = strlen(Locale->month[i]); |
674 | if (strncasecmp(buf, |
675 | Locale->month[i], |
676 | len) == 0) |
677 | break; |
678 | } else { |
679 | len = strlen(Locale->mon[i]); |
680 | if (strncasecmp(buf, |
681 | Locale->mon[i], |
682 | len) == 0) |
683 | break; |
684 | } |
685 | } |
686 | } |
687 | if (i == asizeof(Locale->month)) |
688 | return 0; |
689 | |
690 | tm->tm_mon = i; |
691 | buf += len; |
692 | break; |
693 | |
694 | case 'm': |
695 | if (!isdigit((unsigned char)*buf)) |
696 | return 0; |
697 | |
698 | len = 2; |
699 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
700 | i *= 10; |
701 | i += *buf - '0'; |
702 | len--; |
703 | } |
704 | if (i < 1 || i > 12) |
705 | return 0; |
706 | |
707 | tm->tm_mon = i - 1; |
708 | |
709 | if (*buf != 0 && isspace((unsigned char)*buf)) |
710 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
711 | ptr++; |
712 | break; |
713 | |
714 | case 'Y': |
715 | case 'y': |
716 | if (*buf == 0 || isspace((unsigned char)*buf)) |
717 | break; |
718 | |
719 | if (!isdigit((unsigned char)*buf)) |
720 | return 0; |
721 | |
722 | len = (c == 'Y') ? 4 : 2; |
723 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
724 | i *= 10; |
725 | i += *buf - '0'; |
726 | len--; |
727 | } |
728 | if (c == 'Y') |
729 | i -= 1900; |
730 | if (c == 'y' && i < 69) |
731 | i += 100; |
732 | if (i < 0) |
733 | return 0; |
734 | |
735 | tm->tm_year = i; |
736 | |
737 | if (*buf != 0 && isspace((unsigned char)*buf)) |
738 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
739 | ptr++; |
740 | break; |
741 | |
742 | case 'Z': |
743 | { |
744 | const char *cp; |
745 | char *zonestr; |
746 | |
747 | for (cp = buf; *cp && isupper((unsigned char)*cp); ++cp) |
748 | {/*empty*/} |
749 | if (cp - buf) { |
d56c6e85 |
750 | zonestr = (char *)alloca(cp - buf + 1); |
16433e2b |
751 | strncpy(zonestr, buf, cp - buf); |
752 | zonestr[cp - buf] = '\0'; |
753 | tzset(); |
754 | if (0 == strcmp(zonestr, "GMT")) { |
755 | got_GMT = 1; |
756 | } else { |
757 | return 0; |
758 | } |
759 | buf += cp - buf; |
760 | } |
761 | } |
762 | break; |
763 | } |
764 | } |
765 | return (char *)buf; |
766 | } |
767 | |
768 | |
769 | char * |
770 | strptime(const char *buf, const char *fmt, struct tm *tm) |
771 | { |
772 | char *ret; |
773 | |
774 | #ifdef _THREAD_SAFE |
775 | pthread_mutex_lock(&gotgmt_mutex); |
776 | #endif |
777 | |
778 | got_GMT = 0; |
779 | ret = _strptime(buf, fmt, tm); |
780 | |
781 | #ifdef _THREAD_SAFE |
782 | pthread_mutex_unlock(&gotgmt_mutex); |
783 | #endif |
784 | |
785 | return ret; |
786 | } |
787 | |
788 | #endif /* Mac OS X */ |
789 | |
790 | MODULE = Time::Piece PACKAGE = Time::Piece |
791 | |
792 | PROTOTYPES: ENABLE |
793 | |
9331e88f |
794 | void |
16433e2b |
795 | _strftime(fmt, sec, min, hour, mday, mon, year, wday = -1, yday = -1, isdst = -1) |
796 | char * fmt |
797 | int sec |
798 | int min |
799 | int hour |
800 | int mday |
801 | int mon |
802 | int year |
803 | int wday |
804 | int yday |
805 | int isdst |
806 | CODE: |
807 | { |
808 | char tmpbuf[128]; |
809 | struct tm mytm; |
810 | int len; |
811 | memset(&mytm, 0, sizeof(mytm)); |
812 | my_init_tm(&mytm); /* XXX workaround - see my_init_tm() above */ |
813 | mytm.tm_sec = sec; |
814 | mytm.tm_min = min; |
815 | mytm.tm_hour = hour; |
816 | mytm.tm_mday = mday; |
817 | mytm.tm_mon = mon; |
818 | mytm.tm_year = year; |
819 | mytm.tm_wday = wday; |
820 | mytm.tm_yday = yday; |
821 | mytm.tm_isdst = isdst; |
822 | my_mini_mktime(&mytm); |
823 | len = strftime(tmpbuf, sizeof tmpbuf, fmt, &mytm); |
824 | /* |
825 | ** The following is needed to handle to the situation where |
826 | ** tmpbuf overflows. Basically we want to allocate a buffer |
827 | ** and try repeatedly. The reason why it is so complicated |
828 | ** is that getting a return value of 0 from strftime can indicate |
829 | ** one of the following: |
830 | ** 1. buffer overflowed, |
831 | ** 2. illegal conversion specifier, or |
832 | ** 3. the format string specifies nothing to be returned(not |
833 | ** an error). This could be because format is an empty string |
834 | ** or it specifies %p that yields an empty string in some locale. |
835 | ** If there is a better way to make it portable, go ahead by |
836 | ** all means. |
837 | */ |
838 | if ((len > 0 && len < sizeof(tmpbuf)) || (len == 0 && *fmt == '\0')) |
839 | ST(0) = sv_2mortal(newSVpv(tmpbuf, len)); |
840 | else { |
841 | /* Possibly buf overflowed - try again with a bigger buf */ |
842 | int fmtlen = strlen(fmt); |
843 | int bufsize = fmtlen + sizeof(tmpbuf); |
844 | char* buf; |
845 | int buflen; |
846 | |
847 | New(0, buf, bufsize, char); |
848 | while (buf) { |
849 | buflen = strftime(buf, bufsize, fmt, &mytm); |
850 | if (buflen > 0 && buflen < bufsize) |
851 | break; |
852 | /* heuristic to prevent out-of-memory errors */ |
853 | if (bufsize > 100*fmtlen) { |
854 | Safefree(buf); |
855 | buf = NULL; |
856 | break; |
857 | } |
858 | bufsize *= 2; |
859 | Renew(buf, bufsize, char); |
860 | } |
861 | if (buf) { |
862 | ST(0) = sv_2mortal(newSVpv(buf, buflen)); |
863 | Safefree(buf); |
864 | } |
865 | else |
866 | ST(0) = sv_2mortal(newSVpv(tmpbuf, len)); |
867 | } |
868 | } |
869 | |
870 | void |
871 | _tzset() |
872 | PPCODE: |
873 | tzset(); |
874 | |
875 | |
876 | void |
877 | _strptime ( string, format ) |
878 | char * string |
879 | char * format |
880 | PREINIT: |
16433e2b |
881 | struct tm mytm; |
882 | time_t t; |
883 | char * remainder; |
16433e2b |
884 | PPCODE: |
885 | t = 0; |
886 | mytm = *gmtime(&t); |
887 | |
888 | remainder = (char *)strptime(string, format, &mytm); |
889 | |
890 | if (remainder == NULL) { |
891 | croak("Error parsing time"); |
892 | } |
893 | |
894 | if (*remainder != '\0') { |
895 | warn("garbage at end of string in strptime: %s", remainder); |
896 | } |
897 | |
898 | my_mini_mktime(&mytm); |
899 | |
900 | /* warn("tm: %d-%d-%d %d:%d:%d\n", mytm.tm_year, mytm.tm_mon, mytm.tm_mday, mytm.tm_hour, mytm.tm_min, mytm.tm_sec); */ |
901 | |
902 | EXTEND(SP, 11); |
903 | PUSHs(sv_2mortal(newSViv(mytm.tm_sec))); |
904 | PUSHs(sv_2mortal(newSViv(mytm.tm_min))); |
905 | PUSHs(sv_2mortal(newSViv(mytm.tm_hour))); |
906 | PUSHs(sv_2mortal(newSViv(mytm.tm_mday))); |
907 | PUSHs(sv_2mortal(newSViv(mytm.tm_mon))); |
908 | PUSHs(sv_2mortal(newSViv(mytm.tm_year))); |
909 | PUSHs(sv_2mortal(newSViv(mytm.tm_wday))); |
910 | PUSHs(sv_2mortal(newSViv(mytm.tm_yday))); |
911 | /* isdst */ |
912 | PUSHs(sv_2mortal(newSViv(0))); |
913 | /* epoch */ |
914 | PUSHs(sv_2mortal(newSViv(0))); |
915 | /* islocal */ |
916 | PUSHs(sv_2mortal(newSViv(0))); |
3df1a9e2 |
917 | |
918 | void |
919 | _mini_mktime(int sec, int min, int hour, int mday, int mon, int year) |
920 | PREINIT: |
921 | struct tm mytm; |
922 | time_t t; |
923 | PPCODE: |
924 | t = 0; |
925 | mytm = *gmtime(&t); |
926 | |
927 | mytm.tm_sec = sec; |
928 | mytm.tm_min = min; |
929 | mytm.tm_hour = hour; |
930 | mytm.tm_mday = mday; |
931 | mytm.tm_mon = mon; |
932 | mytm.tm_year = year; |
933 | |
934 | my_mini_mktime(&mytm); |
935 | |
936 | EXTEND(SP, 11); |
937 | PUSHs(sv_2mortal(newSViv(mytm.tm_sec))); |
938 | PUSHs(sv_2mortal(newSViv(mytm.tm_min))); |
939 | PUSHs(sv_2mortal(newSViv(mytm.tm_hour))); |
940 | PUSHs(sv_2mortal(newSViv(mytm.tm_mday))); |
941 | PUSHs(sv_2mortal(newSViv(mytm.tm_mon))); |
942 | PUSHs(sv_2mortal(newSViv(mytm.tm_year))); |
943 | PUSHs(sv_2mortal(newSViv(mytm.tm_wday))); |
944 | PUSHs(sv_2mortal(newSViv(mytm.tm_yday))); |
945 | /* isdst */ |
946 | PUSHs(sv_2mortal(newSViv(0))); |
947 | /* epoch */ |
948 | PUSHs(sv_2mortal(newSViv(0))); |
949 | /* islocal */ |
950 | PUSHs(sv_2mortal(newSViv(0))); |