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) |
d4d72fe6 |
13 | * fields for which we don't have Configure support prior to Perl 5.8.0: |
16433e2b |
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 | * |
d4d72fe6 |
22 | * This is a vestigial workaround for Perls prior to 5.8.0. We now |
23 | * rely on the initialization (still likely a workaround) in util.c. |
16433e2b |
24 | */ |
d4d72fe6 |
25 | #if !defined(PERL_VERSION) || PERL_VERSION < 8 |
26 | |
036055ae |
27 | #if defined(HAS_GNULIBC) |
16433e2b |
28 | # ifndef STRUCT_TM_HASZONE |
29 | # define STRUCT_TM_HASZONE |
30 | # else |
31 | # define USE_TM_GMTOFF |
32 | # endif |
33 | #endif |
34 | |
d4d72fe6 |
35 | #endif /* end of pre-5.8 */ |
36 | |
16433e2b |
37 | #define DAYS_PER_YEAR 365 |
38 | #define DAYS_PER_QYEAR (4*DAYS_PER_YEAR+1) |
39 | #define DAYS_PER_CENT (25*DAYS_PER_QYEAR-1) |
40 | #define DAYS_PER_QCENT (4*DAYS_PER_CENT+1) |
41 | #define SECS_PER_HOUR (60*60) |
42 | #define SECS_PER_DAY (24*SECS_PER_HOUR) |
43 | /* parentheses deliberately absent on these two, otherwise they don't work */ |
44 | #define MONTH_TO_DAYS 153/5 |
45 | #define DAYS_TO_MONTH 5/153 |
46 | /* offset to bias by March (month 4) 1st between month/mday & year finding */ |
47 | #define YEAR_ADJUST (4*MONTH_TO_DAYS+1) |
48 | /* as used here, the algorithm leaves Sunday as day 1 unless we adjust it */ |
49 | #define WEEKDAY_BIAS 6 /* (1+6)%7 makes Sunday 0 again */ |
50 | |
d4d72fe6 |
51 | #if !defined(PERL_VERSION) || PERL_VERSION < 8 |
52 | |
16433e2b |
53 | #ifdef STRUCT_TM_HASZONE |
54 | static void |
55 | my_init_tm(struct tm *ptm) /* see mktime, strftime and asctime */ |
56 | { |
57 | Time_t now; |
58 | (void)time(&now); |
59 | Copy(localtime(&now), ptm, 1, struct tm); |
60 | } |
61 | |
62 | #else |
63 | # define my_init_tm(ptm) |
64 | #endif |
65 | |
d4d72fe6 |
66 | #else |
67 | /* use core version from util.c in 5.8.0 and later */ |
68 | # define my_init_tm init_tm |
69 | #endif |
70 | |
16433e2b |
71 | /* |
72 | * my_mini_mktime - normalise struct tm values without the localtime() |
124e6c84 |
73 | * semantics (and overhead) of mktime(). Stolen shamelessly from Perl's |
74 | * Perl_mini_mktime() in util.c - for details on the algorithm, see that |
75 | * file. |
16433e2b |
76 | */ |
77 | static void |
78 | my_mini_mktime(struct tm *ptm) |
79 | { |
80 | int yearday; |
81 | int secs; |
82 | int month, mday, year, jday; |
83 | int odd_cent, odd_year; |
84 | |
16433e2b |
85 | year = 1900 + ptm->tm_year; |
86 | month = ptm->tm_mon; |
87 | mday = ptm->tm_mday; |
88 | /* allow given yday with no month & mday to dominate the result */ |
89 | if (ptm->tm_yday >= 0 && mday <= 0 && month <= 0) { |
90 | month = 0; |
91 | mday = 0; |
92 | jday = 1 + ptm->tm_yday; |
93 | } |
94 | else { |
95 | jday = 0; |
96 | } |
97 | if (month >= 2) |
98 | month+=2; |
99 | else |
100 | month+=14, year--; |
101 | |
102 | yearday = DAYS_PER_YEAR * year + year/4 - year/100 + year/400; |
103 | yearday += month*MONTH_TO_DAYS + mday + jday; |
104 | /* |
105 | * Note that we don't know when leap-seconds were or will be, |
106 | * so we have to trust the user if we get something which looks |
107 | * like a sensible leap-second. Wild values for seconds will |
108 | * be rationalised, however. |
109 | */ |
110 | if ((unsigned) ptm->tm_sec <= 60) { |
111 | secs = 0; |
112 | } |
113 | else { |
114 | secs = ptm->tm_sec; |
115 | ptm->tm_sec = 0; |
116 | } |
117 | secs += 60 * ptm->tm_min; |
118 | secs += SECS_PER_HOUR * ptm->tm_hour; |
119 | if (secs < 0) { |
120 | if (secs-(secs/SECS_PER_DAY*SECS_PER_DAY) < 0) { |
121 | /* got negative remainder, but need positive time */ |
122 | /* back off an extra day to compensate */ |
123 | yearday += (secs/SECS_PER_DAY)-1; |
124 | secs -= SECS_PER_DAY * (secs/SECS_PER_DAY - 1); |
125 | } |
126 | else { |
127 | yearday += (secs/SECS_PER_DAY); |
128 | secs -= SECS_PER_DAY * (secs/SECS_PER_DAY); |
129 | } |
130 | } |
131 | else if (secs >= SECS_PER_DAY) { |
132 | yearday += (secs/SECS_PER_DAY); |
133 | secs %= SECS_PER_DAY; |
134 | } |
135 | ptm->tm_hour = secs/SECS_PER_HOUR; |
136 | secs %= SECS_PER_HOUR; |
137 | ptm->tm_min = secs/60; |
138 | secs %= 60; |
139 | ptm->tm_sec += secs; |
140 | /* done with time of day effects */ |
141 | /* |
142 | * The algorithm for yearday has (so far) left it high by 428. |
143 | * To avoid mistaking a legitimate Feb 29 as Mar 1, we need to |
144 | * bias it by 123 while trying to figure out what year it |
145 | * really represents. Even with this tweak, the reverse |
146 | * translation fails for years before A.D. 0001. |
147 | * It would still fail for Feb 29, but we catch that one below. |
148 | */ |
149 | jday = yearday; /* save for later fixup vis-a-vis Jan 1 */ |
150 | yearday -= YEAR_ADJUST; |
151 | year = (yearday / DAYS_PER_QCENT) * 400; |
152 | yearday %= DAYS_PER_QCENT; |
153 | odd_cent = yearday / DAYS_PER_CENT; |
154 | year += odd_cent * 100; |
155 | yearday %= DAYS_PER_CENT; |
156 | year += (yearday / DAYS_PER_QYEAR) * 4; |
157 | yearday %= DAYS_PER_QYEAR; |
158 | odd_year = yearday / DAYS_PER_YEAR; |
159 | year += odd_year; |
160 | yearday %= DAYS_PER_YEAR; |
161 | if (!yearday && (odd_cent==4 || odd_year==4)) { /* catch Feb 29 */ |
162 | month = 1; |
163 | yearday = 29; |
164 | } |
165 | else { |
166 | yearday += YEAR_ADJUST; /* recover March 1st crock */ |
167 | month = yearday*DAYS_TO_MONTH; |
168 | yearday -= month*MONTH_TO_DAYS; |
169 | /* recover other leap-year adjustment */ |
170 | if (month > 13) { |
171 | month-=14; |
172 | year++; |
173 | } |
174 | else { |
175 | month-=2; |
176 | } |
177 | } |
178 | ptm->tm_year = year - 1900; |
179 | if (yearday) { |
180 | ptm->tm_mday = yearday; |
181 | ptm->tm_mon = month; |
182 | } |
183 | else { |
184 | ptm->tm_mday = 31; |
185 | ptm->tm_mon = month - 1; |
186 | } |
187 | /* re-build yearday based on Jan 1 to get tm_yday */ |
188 | year--; |
189 | yearday = year*DAYS_PER_YEAR + year/4 - year/100 + year/400; |
190 | yearday += 14*MONTH_TO_DAYS + 1; |
191 | ptm->tm_yday = jday - yearday; |
192 | /* fix tm_wday if not overridden by caller */ |
193 | ptm->tm_wday = (jday + WEEKDAY_BIAS) % 7; |
194 | } |
195 | |
124e6c84 |
196 | /* No strptime on Win32 or QNX4 */ |
197 | #if defined(WIN32) || (defined(__QNX__) && defined(__WATCOMC__)) |
16433e2b |
198 | #define strncasecmp(x,y,n) strnicmp(x,y,n) |
be8a15fc |
199 | |
200 | #if defined(WIN32) |
0db9c0cf |
201 | #if defined(__BORLANDC__) |
202 | void * __cdecl _EXPFUNC alloca(_SIZE_T __size); |
203 | #else |
16433e2b |
204 | #define alloca _alloca |
be8a15fc |
205 | #endif |
0db9c0cf |
206 | #endif |
124e6c84 |
207 | |
208 | /* strptime copied from freebsd with the following copyright: */ |
209 | /* |
210 | * Copyright (c) 1994 Powerdog Industries. All rights reserved. |
211 | * |
212 | * Redistribution and use in source and binary forms, with or without |
213 | * modification, are permitted provided that the following conditions |
214 | * are met: |
215 | * 1. Redistributions of source code must retain the above copyright |
216 | * notice, this list of conditions and the following disclaimer. |
217 | * 2. Redistributions in binary form must reproduce the above copyright |
218 | * notice, this list of conditions and the following disclaimer |
219 | * in the documentation and/or other materials provided with the |
220 | * distribution. |
221 | * 3. All advertising materials mentioning features or use of this |
222 | * software must display the following acknowledgement: |
223 | * This product includes software developed by Powerdog Industries. |
224 | * 4. The name of Powerdog Industries may not be used to endorse or |
225 | * promote products derived from this software without specific prior |
226 | * written permission. |
227 | * |
228 | * THIS SOFTWARE IS PROVIDED BY POWERDOG INDUSTRIES ``AS IS'' AND ANY |
229 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
230 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
231 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE POWERDOG INDUSTRIES BE |
232 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
233 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
234 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
235 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
236 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
237 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
238 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
239 | */ |
240 | |
241 | #ifndef lint |
242 | #ifndef NOID |
243 | static char copyright[] = |
244 | "@(#) Copyright (c) 1994 Powerdog Industries. All rights reserved."; |
245 | static char sccsid[] = "@(#)strptime.c 0.1 (Powerdog) 94/03/27"; |
246 | #endif /* !defined NOID */ |
247 | #endif /* not lint */ |
be8a15fc |
248 | |
16433e2b |
249 | #include <time.h> |
250 | #include <ctype.h> |
251 | #include <string.h> |
252 | #ifdef _THREAD_SAFE |
253 | #include <pthread.h> |
254 | #include "pthread_private.h" |
255 | #endif /* _THREAD_SAFE */ |
256 | |
257 | static char * _strptime(const char *, const char *, struct tm *); |
258 | |
259 | #ifdef _THREAD_SAFE |
260 | static struct pthread_mutex _gotgmt_mutexd = PTHREAD_MUTEX_STATIC_INITIALIZER; |
261 | static pthread_mutex_t gotgmt_mutex = &_gotgmt_mutexd; |
262 | #endif |
263 | static int got_GMT; |
264 | |
265 | #define asizeof(a) (sizeof (a) / sizeof ((a)[0])) |
266 | |
267 | struct lc_time_T { |
268 | const char * mon[12]; |
269 | const char * month[12]; |
270 | const char * wday[7]; |
271 | const char * weekday[7]; |
272 | const char * X_fmt; |
273 | const char * x_fmt; |
274 | const char * c_fmt; |
275 | const char * am; |
276 | const char * pm; |
277 | const char * date_fmt; |
278 | const char * alt_month[12]; |
279 | const char * Ef_fmt; |
280 | const char * EF_fmt; |
281 | }; |
282 | |
283 | struct lc_time_T _time_localebuf; |
284 | int _time_using_locale; |
285 | |
286 | const struct lc_time_T _C_time_locale = { |
287 | { |
288 | "Jan", "Feb", "Mar", "Apr", "May", "Jun", |
289 | "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" |
290 | }, { |
291 | "January", "February", "March", "April", "May", "June", |
292 | "July", "August", "September", "October", "November", "December" |
293 | }, { |
294 | "Sun", "Mon", "Tue", "Wed", |
295 | "Thu", "Fri", "Sat" |
296 | }, { |
297 | "Sunday", "Monday", "Tuesday", "Wednesday", |
298 | "Thursday", "Friday", "Saturday" |
299 | }, |
300 | |
301 | /* X_fmt */ |
302 | "%H:%M:%S", |
303 | |
304 | /* |
305 | ** x_fmt |
306 | ** Since the C language standard calls for |
307 | ** "date, using locale's date format," anything goes. |
308 | ** Using just numbers (as here) makes Quakers happier; |
309 | ** it's also compatible with SVR4. |
310 | */ |
311 | "%m/%d/%y", |
312 | |
313 | /* |
314 | ** c_fmt (ctime-compatible) |
315 | ** Not used, just compatibility placeholder. |
316 | */ |
317 | NULL, |
318 | |
319 | /* am */ |
320 | "AM", |
321 | |
322 | /* pm */ |
323 | "PM", |
324 | |
325 | /* date_fmt */ |
326 | "%a %Ef %X %Z %Y", |
327 | |
328 | { |
329 | "January", "February", "March", "April", "May", "June", |
330 | "July", "August", "September", "October", "November", "December" |
331 | }, |
332 | |
333 | /* Ef_fmt |
334 | ** To determine short months / day order |
335 | */ |
336 | "%b %e", |
337 | |
338 | /* EF_fmt |
339 | ** To determine long months / day order |
340 | */ |
341 | "%B %e" |
342 | }; |
343 | |
344 | #define Locale (&_C_time_locale) |
345 | |
346 | static char * |
347 | _strptime(const char *buf, const char *fmt, struct tm *tm) |
348 | { |
349 | char c; |
350 | const char *ptr; |
351 | int i, |
352 | len; |
353 | int Ealternative, Oalternative; |
354 | |
355 | ptr = fmt; |
356 | while (*ptr != 0) { |
357 | if (*buf == 0) |
358 | break; |
359 | |
360 | c = *ptr++; |
361 | |
362 | if (c != '%') { |
363 | if (isspace((unsigned char)c)) |
364 | while (*buf != 0 && isspace((unsigned char)*buf)) |
365 | buf++; |
366 | else if (c != *buf++) |
367 | return 0; |
368 | continue; |
369 | } |
370 | |
371 | Ealternative = 0; |
372 | Oalternative = 0; |
373 | label: |
374 | c = *ptr++; |
375 | switch (c) { |
376 | case 0: |
377 | case '%': |
378 | if (*buf++ != '%') |
379 | return 0; |
380 | break; |
381 | |
382 | case '+': |
383 | buf = _strptime(buf, Locale->date_fmt, tm); |
384 | if (buf == 0) |
385 | return 0; |
386 | break; |
387 | |
388 | case 'C': |
389 | if (!isdigit((unsigned char)*buf)) |
390 | return 0; |
391 | |
392 | /* XXX This will break for 3-digit centuries. */ |
393 | len = 2; |
394 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
395 | i *= 10; |
396 | i += *buf - '0'; |
397 | len--; |
398 | } |
399 | if (i < 19) |
400 | return 0; |
401 | |
402 | tm->tm_year = i * 100 - 1900; |
403 | break; |
404 | |
405 | case 'c': |
406 | /* NOTE: c_fmt is intentionally ignored */ |
407 | buf = _strptime(buf, "%a %Ef %T %Y", tm); |
408 | if (buf == 0) |
409 | return 0; |
410 | break; |
411 | |
412 | case 'D': |
413 | buf = _strptime(buf, "%m/%d/%y", tm); |
414 | if (buf == 0) |
415 | return 0; |
416 | break; |
417 | |
418 | case 'E': |
419 | if (Ealternative || Oalternative) |
420 | break; |
421 | Ealternative++; |
422 | goto label; |
423 | |
424 | case 'O': |
425 | if (Ealternative || Oalternative) |
426 | break; |
427 | Oalternative++; |
428 | goto label; |
429 | |
430 | case 'F': |
431 | case 'f': |
432 | if (!Ealternative) |
433 | break; |
434 | buf = _strptime(buf, (c == 'f') ? Locale->Ef_fmt : Locale->EF_fmt, tm); |
435 | if (buf == 0) |
436 | return 0; |
437 | break; |
438 | |
439 | case 'R': |
440 | buf = _strptime(buf, "%H:%M", tm); |
441 | if (buf == 0) |
442 | return 0; |
443 | break; |
444 | |
445 | case 'r': |
446 | buf = _strptime(buf, "%I:%M:%S %p", tm); |
447 | if (buf == 0) |
448 | return 0; |
449 | break; |
450 | |
451 | case 'T': |
452 | buf = _strptime(buf, "%H:%M:%S", tm); |
453 | if (buf == 0) |
454 | return 0; |
455 | break; |
456 | |
457 | case 'X': |
458 | buf = _strptime(buf, Locale->X_fmt, tm); |
459 | if (buf == 0) |
460 | return 0; |
461 | break; |
462 | |
463 | case 'x': |
464 | buf = _strptime(buf, Locale->x_fmt, tm); |
465 | if (buf == 0) |
466 | return 0; |
467 | break; |
468 | |
469 | case 'j': |
470 | if (!isdigit((unsigned char)*buf)) |
471 | return 0; |
472 | |
473 | len = 3; |
474 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
475 | i *= 10; |
476 | i += *buf - '0'; |
477 | len--; |
478 | } |
479 | if (i < 1 || i > 366) |
480 | return 0; |
481 | |
482 | tm->tm_yday = i - 1; |
483 | break; |
484 | |
485 | case 'M': |
486 | case 'S': |
487 | if (*buf == 0 || isspace((unsigned char)*buf)) |
488 | break; |
489 | |
490 | if (!isdigit((unsigned char)*buf)) |
491 | return 0; |
492 | |
493 | len = 2; |
494 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
495 | i *= 10; |
496 | i += *buf - '0'; |
497 | len--; |
498 | } |
499 | |
500 | if (c == 'M') { |
501 | if (i > 59) |
502 | return 0; |
503 | tm->tm_min = i; |
504 | } else { |
505 | if (i > 60) |
506 | return 0; |
507 | tm->tm_sec = i; |
508 | } |
509 | |
510 | if (*buf != 0 && isspace((unsigned char)*buf)) |
511 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
512 | ptr++; |
513 | break; |
514 | |
515 | case 'H': |
516 | case 'I': |
517 | case 'k': |
518 | case 'l': |
519 | /* |
520 | * Of these, %l is the only specifier explicitly |
521 | * documented as not being zero-padded. However, |
522 | * there is no harm in allowing zero-padding. |
523 | * |
524 | * XXX The %l specifier may gobble one too many |
525 | * digits if used incorrectly. |
526 | */ |
527 | if (!isdigit((unsigned char)*buf)) |
528 | return 0; |
529 | |
530 | len = 2; |
531 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
532 | i *= 10; |
533 | i += *buf - '0'; |
534 | len--; |
535 | } |
536 | if (c == 'H' || c == 'k') { |
537 | if (i > 23) |
538 | return 0; |
539 | } else if (i > 12) |
540 | return 0; |
541 | |
542 | tm->tm_hour = i; |
543 | |
544 | if (*buf != 0 && isspace((unsigned char)*buf)) |
545 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
546 | ptr++; |
547 | break; |
548 | |
549 | case 'p': |
550 | /* |
551 | * XXX This is bogus if parsed before hour-related |
552 | * specifiers. |
553 | */ |
554 | len = strlen(Locale->am); |
555 | if (strncasecmp(buf, Locale->am, len) == 0) { |
556 | if (tm->tm_hour > 12) |
557 | return 0; |
558 | if (tm->tm_hour == 12) |
559 | tm->tm_hour = 0; |
560 | buf += len; |
561 | break; |
562 | } |
563 | |
564 | len = strlen(Locale->pm); |
565 | if (strncasecmp(buf, Locale->pm, len) == 0) { |
566 | if (tm->tm_hour > 12) |
567 | return 0; |
568 | if (tm->tm_hour != 12) |
569 | tm->tm_hour += 12; |
570 | buf += len; |
571 | break; |
572 | } |
573 | |
574 | return 0; |
575 | |
576 | case 'A': |
577 | case 'a': |
578 | for (i = 0; i < asizeof(Locale->weekday); i++) { |
579 | if (c == 'A') { |
580 | len = strlen(Locale->weekday[i]); |
581 | if (strncasecmp(buf, |
582 | Locale->weekday[i], |
583 | len) == 0) |
584 | break; |
585 | } else { |
586 | len = strlen(Locale->wday[i]); |
587 | if (strncasecmp(buf, |
588 | Locale->wday[i], |
589 | len) == 0) |
590 | break; |
591 | } |
592 | } |
593 | if (i == asizeof(Locale->weekday)) |
594 | return 0; |
595 | |
596 | tm->tm_wday = i; |
597 | buf += len; |
598 | break; |
599 | |
600 | case 'U': |
601 | case 'W': |
602 | /* |
603 | * XXX This is bogus, as we can not assume any valid |
604 | * information present in the tm structure at this |
605 | * point to calculate a real value, so just check the |
606 | * range for now. |
607 | */ |
608 | if (!isdigit((unsigned char)*buf)) |
609 | return 0; |
610 | |
611 | len = 2; |
612 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
613 | i *= 10; |
614 | i += *buf - '0'; |
615 | len--; |
616 | } |
617 | if (i > 53) |
618 | return 0; |
619 | |
620 | if (*buf != 0 && isspace((unsigned char)*buf)) |
621 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
622 | ptr++; |
623 | break; |
624 | |
625 | case 'w': |
626 | if (!isdigit((unsigned char)*buf)) |
627 | return 0; |
628 | |
629 | i = *buf - '0'; |
630 | if (i > 6) |
631 | return 0; |
632 | |
633 | tm->tm_wday = i; |
634 | |
635 | if (*buf != 0 && isspace((unsigned char)*buf)) |
636 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
637 | ptr++; |
638 | break; |
639 | |
640 | case 'd': |
641 | case 'e': |
642 | /* |
643 | * The %e specifier is explicitly documented as not |
644 | * being zero-padded but there is no harm in allowing |
645 | * such padding. |
646 | * |
647 | * XXX The %e specifier may gobble one too many |
648 | * digits if used incorrectly. |
649 | */ |
650 | if (!isdigit((unsigned char)*buf)) |
651 | return 0; |
652 | |
653 | len = 2; |
654 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
655 | i *= 10; |
656 | i += *buf - '0'; |
657 | len--; |
658 | } |
659 | if (i > 31) |
660 | return 0; |
661 | |
662 | tm->tm_mday = i; |
663 | |
664 | if (*buf != 0 && isspace((unsigned char)*buf)) |
665 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
666 | ptr++; |
667 | break; |
668 | |
669 | case 'B': |
670 | case 'b': |
671 | case 'h': |
672 | for (i = 0; i < asizeof(Locale->month); i++) { |
673 | if (Oalternative) { |
674 | if (c == 'B') { |
675 | len = strlen(Locale->alt_month[i]); |
676 | if (strncasecmp(buf, |
677 | Locale->alt_month[i], |
678 | len) == 0) |
679 | break; |
680 | } |
681 | } else { |
682 | if (c == 'B') { |
683 | len = strlen(Locale->month[i]); |
684 | if (strncasecmp(buf, |
685 | Locale->month[i], |
686 | len) == 0) |
687 | break; |
688 | } else { |
689 | len = strlen(Locale->mon[i]); |
690 | if (strncasecmp(buf, |
691 | Locale->mon[i], |
692 | len) == 0) |
693 | break; |
694 | } |
695 | } |
696 | } |
697 | if (i == asizeof(Locale->month)) |
698 | return 0; |
699 | |
700 | tm->tm_mon = i; |
701 | buf += len; |
702 | break; |
703 | |
704 | case 'm': |
705 | if (!isdigit((unsigned char)*buf)) |
706 | return 0; |
707 | |
708 | len = 2; |
709 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
710 | i *= 10; |
711 | i += *buf - '0'; |
712 | len--; |
713 | } |
714 | if (i < 1 || i > 12) |
715 | return 0; |
716 | |
717 | tm->tm_mon = i - 1; |
718 | |
719 | if (*buf != 0 && isspace((unsigned char)*buf)) |
720 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
721 | ptr++; |
722 | break; |
723 | |
724 | case 'Y': |
725 | case 'y': |
726 | if (*buf == 0 || isspace((unsigned char)*buf)) |
727 | break; |
728 | |
729 | if (!isdigit((unsigned char)*buf)) |
730 | return 0; |
731 | |
732 | len = (c == 'Y') ? 4 : 2; |
733 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
734 | i *= 10; |
735 | i += *buf - '0'; |
736 | len--; |
737 | } |
738 | if (c == 'Y') |
739 | i -= 1900; |
740 | if (c == 'y' && i < 69) |
741 | i += 100; |
742 | if (i < 0) |
743 | return 0; |
744 | |
745 | tm->tm_year = i; |
746 | |
747 | if (*buf != 0 && isspace((unsigned char)*buf)) |
748 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
749 | ptr++; |
750 | break; |
751 | |
752 | case 'Z': |
753 | { |
754 | const char *cp; |
755 | char *zonestr; |
756 | |
757 | for (cp = buf; *cp && isupper((unsigned char)*cp); ++cp) |
758 | {/*empty*/} |
759 | if (cp - buf) { |
d56c6e85 |
760 | zonestr = (char *)alloca(cp - buf + 1); |
16433e2b |
761 | strncpy(zonestr, buf, cp - buf); |
762 | zonestr[cp - buf] = '\0'; |
763 | tzset(); |
764 | if (0 == strcmp(zonestr, "GMT")) { |
765 | got_GMT = 1; |
766 | } else { |
767 | return 0; |
768 | } |
769 | buf += cp - buf; |
770 | } |
771 | } |
772 | break; |
773 | } |
774 | } |
775 | return (char *)buf; |
776 | } |
777 | |
778 | |
779 | char * |
780 | strptime(const char *buf, const char *fmt, struct tm *tm) |
781 | { |
782 | char *ret; |
783 | |
784 | #ifdef _THREAD_SAFE |
785 | pthread_mutex_lock(&gotgmt_mutex); |
786 | #endif |
787 | |
788 | got_GMT = 0; |
789 | ret = _strptime(buf, fmt, tm); |
790 | |
791 | #ifdef _THREAD_SAFE |
792 | pthread_mutex_unlock(&gotgmt_mutex); |
793 | #endif |
794 | |
795 | return ret; |
796 | } |
797 | |
798 | #endif /* Mac OS X */ |
799 | |
800 | MODULE = Time::Piece PACKAGE = Time::Piece |
801 | |
802 | PROTOTYPES: ENABLE |
803 | |
9331e88f |
804 | void |
16433e2b |
805 | _strftime(fmt, sec, min, hour, mday, mon, year, wday = -1, yday = -1, isdst = -1) |
806 | char * fmt |
807 | int sec |
808 | int min |
809 | int hour |
810 | int mday |
811 | int mon |
812 | int year |
813 | int wday |
814 | int yday |
815 | int isdst |
816 | CODE: |
817 | { |
818 | char tmpbuf[128]; |
819 | struct tm mytm; |
820 | int len; |
821 | memset(&mytm, 0, sizeof(mytm)); |
822 | my_init_tm(&mytm); /* XXX workaround - see my_init_tm() above */ |
823 | mytm.tm_sec = sec; |
824 | mytm.tm_min = min; |
825 | mytm.tm_hour = hour; |
826 | mytm.tm_mday = mday; |
827 | mytm.tm_mon = mon; |
828 | mytm.tm_year = year; |
829 | mytm.tm_wday = wday; |
830 | mytm.tm_yday = yday; |
831 | mytm.tm_isdst = isdst; |
832 | my_mini_mktime(&mytm); |
833 | len = strftime(tmpbuf, sizeof tmpbuf, fmt, &mytm); |
834 | /* |
835 | ** The following is needed to handle to the situation where |
836 | ** tmpbuf overflows. Basically we want to allocate a buffer |
837 | ** and try repeatedly. The reason why it is so complicated |
838 | ** is that getting a return value of 0 from strftime can indicate |
839 | ** one of the following: |
840 | ** 1. buffer overflowed, |
841 | ** 2. illegal conversion specifier, or |
842 | ** 3. the format string specifies nothing to be returned(not |
843 | ** an error). This could be because format is an empty string |
844 | ** or it specifies %p that yields an empty string in some locale. |
845 | ** If there is a better way to make it portable, go ahead by |
846 | ** all means. |
847 | */ |
848 | if ((len > 0 && len < sizeof(tmpbuf)) || (len == 0 && *fmt == '\0')) |
849 | ST(0) = sv_2mortal(newSVpv(tmpbuf, len)); |
850 | else { |
851 | /* Possibly buf overflowed - try again with a bigger buf */ |
852 | int fmtlen = strlen(fmt); |
853 | int bufsize = fmtlen + sizeof(tmpbuf); |
854 | char* buf; |
855 | int buflen; |
856 | |
857 | New(0, buf, bufsize, char); |
858 | while (buf) { |
859 | buflen = strftime(buf, bufsize, fmt, &mytm); |
860 | if (buflen > 0 && buflen < bufsize) |
861 | break; |
862 | /* heuristic to prevent out-of-memory errors */ |
863 | if (bufsize > 100*fmtlen) { |
864 | Safefree(buf); |
865 | buf = NULL; |
866 | break; |
867 | } |
868 | bufsize *= 2; |
869 | Renew(buf, bufsize, char); |
870 | } |
871 | if (buf) { |
872 | ST(0) = sv_2mortal(newSVpv(buf, buflen)); |
873 | Safefree(buf); |
874 | } |
875 | else |
876 | ST(0) = sv_2mortal(newSVpv(tmpbuf, len)); |
877 | } |
878 | } |
879 | |
880 | void |
881 | _tzset() |
882 | PPCODE: |
883 | tzset(); |
884 | |
885 | |
886 | void |
887 | _strptime ( string, format ) |
888 | char * string |
889 | char * format |
890 | PREINIT: |
16433e2b |
891 | struct tm mytm; |
892 | time_t t; |
893 | char * remainder; |
16433e2b |
894 | PPCODE: |
895 | t = 0; |
896 | mytm = *gmtime(&t); |
897 | |
898 | remainder = (char *)strptime(string, format, &mytm); |
899 | |
900 | if (remainder == NULL) { |
901 | croak("Error parsing time"); |
902 | } |
903 | |
904 | if (*remainder != '\0') { |
905 | warn("garbage at end of string in strptime: %s", remainder); |
906 | } |
907 | |
908 | my_mini_mktime(&mytm); |
909 | |
910 | /* 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); */ |
911 | |
912 | EXTEND(SP, 11); |
913 | PUSHs(sv_2mortal(newSViv(mytm.tm_sec))); |
914 | PUSHs(sv_2mortal(newSViv(mytm.tm_min))); |
915 | PUSHs(sv_2mortal(newSViv(mytm.tm_hour))); |
916 | PUSHs(sv_2mortal(newSViv(mytm.tm_mday))); |
917 | PUSHs(sv_2mortal(newSViv(mytm.tm_mon))); |
918 | PUSHs(sv_2mortal(newSViv(mytm.tm_year))); |
919 | PUSHs(sv_2mortal(newSViv(mytm.tm_wday))); |
920 | PUSHs(sv_2mortal(newSViv(mytm.tm_yday))); |
921 | /* isdst */ |
922 | PUSHs(sv_2mortal(newSViv(0))); |
923 | /* epoch */ |
924 | PUSHs(sv_2mortal(newSViv(0))); |
925 | /* islocal */ |
926 | PUSHs(sv_2mortal(newSViv(0))); |
3df1a9e2 |
927 | |
928 | void |
929 | _mini_mktime(int sec, int min, int hour, int mday, int mon, int year) |
930 | PREINIT: |
931 | struct tm mytm; |
932 | time_t t; |
933 | PPCODE: |
934 | t = 0; |
935 | mytm = *gmtime(&t); |
936 | |
937 | mytm.tm_sec = sec; |
938 | mytm.tm_min = min; |
939 | mytm.tm_hour = hour; |
940 | mytm.tm_mday = mday; |
941 | mytm.tm_mon = mon; |
942 | mytm.tm_year = year; |
943 | |
944 | my_mini_mktime(&mytm); |
945 | |
946 | EXTEND(SP, 11); |
947 | PUSHs(sv_2mortal(newSViv(mytm.tm_sec))); |
948 | PUSHs(sv_2mortal(newSViv(mytm.tm_min))); |
949 | PUSHs(sv_2mortal(newSViv(mytm.tm_hour))); |
950 | PUSHs(sv_2mortal(newSViv(mytm.tm_mday))); |
951 | PUSHs(sv_2mortal(newSViv(mytm.tm_mon))); |
952 | PUSHs(sv_2mortal(newSViv(mytm.tm_year))); |
953 | PUSHs(sv_2mortal(newSViv(mytm.tm_wday))); |
954 | PUSHs(sv_2mortal(newSViv(mytm.tm_yday))); |
955 | /* isdst */ |
956 | PUSHs(sv_2mortal(newSViv(0))); |
957 | /* epoch */ |
958 | PUSHs(sv_2mortal(newSViv(0))); |
959 | /* islocal */ |
960 | PUSHs(sv_2mortal(newSViv(0))); |