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) |
16433e2b |
191 | #define alloca _alloca |
be8a15fc |
192 | #endif |
124e6c84 |
193 | |
194 | /* strptime copied from freebsd with the following copyright: */ |
195 | /* |
196 | * Copyright (c) 1994 Powerdog Industries. All rights reserved. |
197 | * |
198 | * Redistribution and use in source and binary forms, with or without |
199 | * modification, are permitted provided that the following conditions |
200 | * are met: |
201 | * 1. Redistributions of source code must retain the above copyright |
202 | * notice, this list of conditions and the following disclaimer. |
203 | * 2. Redistributions in binary form must reproduce the above copyright |
204 | * notice, this list of conditions and the following disclaimer |
205 | * in the documentation and/or other materials provided with the |
206 | * distribution. |
207 | * 3. All advertising materials mentioning features or use of this |
208 | * software must display the following acknowledgement: |
209 | * This product includes software developed by Powerdog Industries. |
210 | * 4. The name of Powerdog Industries may not be used to endorse or |
211 | * promote products derived from this software without specific prior |
212 | * written permission. |
213 | * |
214 | * THIS SOFTWARE IS PROVIDED BY POWERDOG INDUSTRIES ``AS IS'' AND ANY |
215 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
216 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
217 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE POWERDOG INDUSTRIES BE |
218 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
219 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
220 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
221 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
222 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
223 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
224 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
225 | */ |
226 | |
227 | #ifndef lint |
228 | #ifndef NOID |
229 | static char copyright[] = |
230 | "@(#) Copyright (c) 1994 Powerdog Industries. All rights reserved."; |
231 | static char sccsid[] = "@(#)strptime.c 0.1 (Powerdog) 94/03/27"; |
232 | #endif /* !defined NOID */ |
233 | #endif /* not lint */ |
be8a15fc |
234 | |
16433e2b |
235 | #include <time.h> |
236 | #include <ctype.h> |
237 | #include <string.h> |
238 | #ifdef _THREAD_SAFE |
239 | #include <pthread.h> |
240 | #include "pthread_private.h" |
241 | #endif /* _THREAD_SAFE */ |
242 | |
243 | static char * _strptime(const char *, const char *, struct tm *); |
244 | |
245 | #ifdef _THREAD_SAFE |
246 | static struct pthread_mutex _gotgmt_mutexd = PTHREAD_MUTEX_STATIC_INITIALIZER; |
247 | static pthread_mutex_t gotgmt_mutex = &_gotgmt_mutexd; |
248 | #endif |
249 | static int got_GMT; |
250 | |
251 | #define asizeof(a) (sizeof (a) / sizeof ((a)[0])) |
252 | |
253 | struct lc_time_T { |
254 | const char * mon[12]; |
255 | const char * month[12]; |
256 | const char * wday[7]; |
257 | const char * weekday[7]; |
258 | const char * X_fmt; |
259 | const char * x_fmt; |
260 | const char * c_fmt; |
261 | const char * am; |
262 | const char * pm; |
263 | const char * date_fmt; |
264 | const char * alt_month[12]; |
265 | const char * Ef_fmt; |
266 | const char * EF_fmt; |
267 | }; |
268 | |
269 | struct lc_time_T _time_localebuf; |
270 | int _time_using_locale; |
271 | |
272 | const struct lc_time_T _C_time_locale = { |
273 | { |
274 | "Jan", "Feb", "Mar", "Apr", "May", "Jun", |
275 | "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" |
276 | }, { |
277 | "January", "February", "March", "April", "May", "June", |
278 | "July", "August", "September", "October", "November", "December" |
279 | }, { |
280 | "Sun", "Mon", "Tue", "Wed", |
281 | "Thu", "Fri", "Sat" |
282 | }, { |
283 | "Sunday", "Monday", "Tuesday", "Wednesday", |
284 | "Thursday", "Friday", "Saturday" |
285 | }, |
286 | |
287 | /* X_fmt */ |
288 | "%H:%M:%S", |
289 | |
290 | /* |
291 | ** x_fmt |
292 | ** Since the C language standard calls for |
293 | ** "date, using locale's date format," anything goes. |
294 | ** Using just numbers (as here) makes Quakers happier; |
295 | ** it's also compatible with SVR4. |
296 | */ |
297 | "%m/%d/%y", |
298 | |
299 | /* |
300 | ** c_fmt (ctime-compatible) |
301 | ** Not used, just compatibility placeholder. |
302 | */ |
303 | NULL, |
304 | |
305 | /* am */ |
306 | "AM", |
307 | |
308 | /* pm */ |
309 | "PM", |
310 | |
311 | /* date_fmt */ |
312 | "%a %Ef %X %Z %Y", |
313 | |
314 | { |
315 | "January", "February", "March", "April", "May", "June", |
316 | "July", "August", "September", "October", "November", "December" |
317 | }, |
318 | |
319 | /* Ef_fmt |
320 | ** To determine short months / day order |
321 | */ |
322 | "%b %e", |
323 | |
324 | /* EF_fmt |
325 | ** To determine long months / day order |
326 | */ |
327 | "%B %e" |
328 | }; |
329 | |
330 | #define Locale (&_C_time_locale) |
331 | |
332 | static char * |
333 | _strptime(const char *buf, const char *fmt, struct tm *tm) |
334 | { |
335 | char c; |
336 | const char *ptr; |
337 | int i, |
338 | len; |
339 | int Ealternative, Oalternative; |
340 | |
341 | ptr = fmt; |
342 | while (*ptr != 0) { |
343 | if (*buf == 0) |
344 | break; |
345 | |
346 | c = *ptr++; |
347 | |
348 | if (c != '%') { |
349 | if (isspace((unsigned char)c)) |
350 | while (*buf != 0 && isspace((unsigned char)*buf)) |
351 | buf++; |
352 | else if (c != *buf++) |
353 | return 0; |
354 | continue; |
355 | } |
356 | |
357 | Ealternative = 0; |
358 | Oalternative = 0; |
359 | label: |
360 | c = *ptr++; |
361 | switch (c) { |
362 | case 0: |
363 | case '%': |
364 | if (*buf++ != '%') |
365 | return 0; |
366 | break; |
367 | |
368 | case '+': |
369 | buf = _strptime(buf, Locale->date_fmt, tm); |
370 | if (buf == 0) |
371 | return 0; |
372 | break; |
373 | |
374 | case 'C': |
375 | if (!isdigit((unsigned char)*buf)) |
376 | return 0; |
377 | |
378 | /* XXX This will break for 3-digit centuries. */ |
379 | len = 2; |
380 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
381 | i *= 10; |
382 | i += *buf - '0'; |
383 | len--; |
384 | } |
385 | if (i < 19) |
386 | return 0; |
387 | |
388 | tm->tm_year = i * 100 - 1900; |
389 | break; |
390 | |
391 | case 'c': |
392 | /* NOTE: c_fmt is intentionally ignored */ |
393 | buf = _strptime(buf, "%a %Ef %T %Y", tm); |
394 | if (buf == 0) |
395 | return 0; |
396 | break; |
397 | |
398 | case 'D': |
399 | buf = _strptime(buf, "%m/%d/%y", tm); |
400 | if (buf == 0) |
401 | return 0; |
402 | break; |
403 | |
404 | case 'E': |
405 | if (Ealternative || Oalternative) |
406 | break; |
407 | Ealternative++; |
408 | goto label; |
409 | |
410 | case 'O': |
411 | if (Ealternative || Oalternative) |
412 | break; |
413 | Oalternative++; |
414 | goto label; |
415 | |
416 | case 'F': |
417 | case 'f': |
418 | if (!Ealternative) |
419 | break; |
420 | buf = _strptime(buf, (c == 'f') ? Locale->Ef_fmt : Locale->EF_fmt, tm); |
421 | if (buf == 0) |
422 | return 0; |
423 | break; |
424 | |
425 | case 'R': |
426 | buf = _strptime(buf, "%H:%M", tm); |
427 | if (buf == 0) |
428 | return 0; |
429 | break; |
430 | |
431 | case 'r': |
432 | buf = _strptime(buf, "%I:%M:%S %p", tm); |
433 | if (buf == 0) |
434 | return 0; |
435 | break; |
436 | |
437 | case 'T': |
438 | buf = _strptime(buf, "%H:%M:%S", tm); |
439 | if (buf == 0) |
440 | return 0; |
441 | break; |
442 | |
443 | case 'X': |
444 | buf = _strptime(buf, Locale->X_fmt, tm); |
445 | if (buf == 0) |
446 | return 0; |
447 | break; |
448 | |
449 | case 'x': |
450 | buf = _strptime(buf, Locale->x_fmt, tm); |
451 | if (buf == 0) |
452 | return 0; |
453 | break; |
454 | |
455 | case 'j': |
456 | if (!isdigit((unsigned char)*buf)) |
457 | return 0; |
458 | |
459 | len = 3; |
460 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
461 | i *= 10; |
462 | i += *buf - '0'; |
463 | len--; |
464 | } |
465 | if (i < 1 || i > 366) |
466 | return 0; |
467 | |
468 | tm->tm_yday = i - 1; |
469 | break; |
470 | |
471 | case 'M': |
472 | case 'S': |
473 | if (*buf == 0 || isspace((unsigned char)*buf)) |
474 | break; |
475 | |
476 | if (!isdigit((unsigned char)*buf)) |
477 | return 0; |
478 | |
479 | len = 2; |
480 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
481 | i *= 10; |
482 | i += *buf - '0'; |
483 | len--; |
484 | } |
485 | |
486 | if (c == 'M') { |
487 | if (i > 59) |
488 | return 0; |
489 | tm->tm_min = i; |
490 | } else { |
491 | if (i > 60) |
492 | return 0; |
493 | tm->tm_sec = i; |
494 | } |
495 | |
496 | if (*buf != 0 && isspace((unsigned char)*buf)) |
497 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
498 | ptr++; |
499 | break; |
500 | |
501 | case 'H': |
502 | case 'I': |
503 | case 'k': |
504 | case 'l': |
505 | /* |
506 | * Of these, %l is the only specifier explicitly |
507 | * documented as not being zero-padded. However, |
508 | * there is no harm in allowing zero-padding. |
509 | * |
510 | * XXX The %l specifier may gobble one too many |
511 | * digits if used incorrectly. |
512 | */ |
513 | if (!isdigit((unsigned char)*buf)) |
514 | return 0; |
515 | |
516 | len = 2; |
517 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
518 | i *= 10; |
519 | i += *buf - '0'; |
520 | len--; |
521 | } |
522 | if (c == 'H' || c == 'k') { |
523 | if (i > 23) |
524 | return 0; |
525 | } else if (i > 12) |
526 | return 0; |
527 | |
528 | tm->tm_hour = i; |
529 | |
530 | if (*buf != 0 && isspace((unsigned char)*buf)) |
531 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
532 | ptr++; |
533 | break; |
534 | |
535 | case 'p': |
536 | /* |
537 | * XXX This is bogus if parsed before hour-related |
538 | * specifiers. |
539 | */ |
540 | len = strlen(Locale->am); |
541 | if (strncasecmp(buf, Locale->am, len) == 0) { |
542 | if (tm->tm_hour > 12) |
543 | return 0; |
544 | if (tm->tm_hour == 12) |
545 | tm->tm_hour = 0; |
546 | buf += len; |
547 | break; |
548 | } |
549 | |
550 | len = strlen(Locale->pm); |
551 | if (strncasecmp(buf, Locale->pm, len) == 0) { |
552 | if (tm->tm_hour > 12) |
553 | return 0; |
554 | if (tm->tm_hour != 12) |
555 | tm->tm_hour += 12; |
556 | buf += len; |
557 | break; |
558 | } |
559 | |
560 | return 0; |
561 | |
562 | case 'A': |
563 | case 'a': |
564 | for (i = 0; i < asizeof(Locale->weekday); i++) { |
565 | if (c == 'A') { |
566 | len = strlen(Locale->weekday[i]); |
567 | if (strncasecmp(buf, |
568 | Locale->weekday[i], |
569 | len) == 0) |
570 | break; |
571 | } else { |
572 | len = strlen(Locale->wday[i]); |
573 | if (strncasecmp(buf, |
574 | Locale->wday[i], |
575 | len) == 0) |
576 | break; |
577 | } |
578 | } |
579 | if (i == asizeof(Locale->weekday)) |
580 | return 0; |
581 | |
582 | tm->tm_wday = i; |
583 | buf += len; |
584 | break; |
585 | |
586 | case 'U': |
587 | case 'W': |
588 | /* |
589 | * XXX This is bogus, as we can not assume any valid |
590 | * information present in the tm structure at this |
591 | * point to calculate a real value, so just check the |
592 | * range for now. |
593 | */ |
594 | if (!isdigit((unsigned char)*buf)) |
595 | return 0; |
596 | |
597 | len = 2; |
598 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
599 | i *= 10; |
600 | i += *buf - '0'; |
601 | len--; |
602 | } |
603 | if (i > 53) |
604 | return 0; |
605 | |
606 | if (*buf != 0 && isspace((unsigned char)*buf)) |
607 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
608 | ptr++; |
609 | break; |
610 | |
611 | case 'w': |
612 | if (!isdigit((unsigned char)*buf)) |
613 | return 0; |
614 | |
615 | i = *buf - '0'; |
616 | if (i > 6) |
617 | return 0; |
618 | |
619 | tm->tm_wday = i; |
620 | |
621 | if (*buf != 0 && isspace((unsigned char)*buf)) |
622 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
623 | ptr++; |
624 | break; |
625 | |
626 | case 'd': |
627 | case 'e': |
628 | /* |
629 | * The %e specifier is explicitly documented as not |
630 | * being zero-padded but there is no harm in allowing |
631 | * such padding. |
632 | * |
633 | * XXX The %e specifier may gobble one too many |
634 | * digits if used incorrectly. |
635 | */ |
636 | if (!isdigit((unsigned char)*buf)) |
637 | return 0; |
638 | |
639 | len = 2; |
640 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
641 | i *= 10; |
642 | i += *buf - '0'; |
643 | len--; |
644 | } |
645 | if (i > 31) |
646 | return 0; |
647 | |
648 | tm->tm_mday = i; |
649 | |
650 | if (*buf != 0 && isspace((unsigned char)*buf)) |
651 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
652 | ptr++; |
653 | break; |
654 | |
655 | case 'B': |
656 | case 'b': |
657 | case 'h': |
658 | for (i = 0; i < asizeof(Locale->month); i++) { |
659 | if (Oalternative) { |
660 | if (c == 'B') { |
661 | len = strlen(Locale->alt_month[i]); |
662 | if (strncasecmp(buf, |
663 | Locale->alt_month[i], |
664 | len) == 0) |
665 | break; |
666 | } |
667 | } else { |
668 | if (c == 'B') { |
669 | len = strlen(Locale->month[i]); |
670 | if (strncasecmp(buf, |
671 | Locale->month[i], |
672 | len) == 0) |
673 | break; |
674 | } else { |
675 | len = strlen(Locale->mon[i]); |
676 | if (strncasecmp(buf, |
677 | Locale->mon[i], |
678 | len) == 0) |
679 | break; |
680 | } |
681 | } |
682 | } |
683 | if (i == asizeof(Locale->month)) |
684 | return 0; |
685 | |
686 | tm->tm_mon = i; |
687 | buf += len; |
688 | break; |
689 | |
690 | case 'm': |
691 | if (!isdigit((unsigned char)*buf)) |
692 | return 0; |
693 | |
694 | len = 2; |
695 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
696 | i *= 10; |
697 | i += *buf - '0'; |
698 | len--; |
699 | } |
700 | if (i < 1 || i > 12) |
701 | return 0; |
702 | |
703 | tm->tm_mon = i - 1; |
704 | |
705 | if (*buf != 0 && isspace((unsigned char)*buf)) |
706 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
707 | ptr++; |
708 | break; |
709 | |
710 | case 'Y': |
711 | case 'y': |
712 | if (*buf == 0 || isspace((unsigned char)*buf)) |
713 | break; |
714 | |
715 | if (!isdigit((unsigned char)*buf)) |
716 | return 0; |
717 | |
718 | len = (c == 'Y') ? 4 : 2; |
719 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
720 | i *= 10; |
721 | i += *buf - '0'; |
722 | len--; |
723 | } |
724 | if (c == 'Y') |
725 | i -= 1900; |
726 | if (c == 'y' && i < 69) |
727 | i += 100; |
728 | if (i < 0) |
729 | return 0; |
730 | |
731 | tm->tm_year = i; |
732 | |
733 | if (*buf != 0 && isspace((unsigned char)*buf)) |
734 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
735 | ptr++; |
736 | break; |
737 | |
738 | case 'Z': |
739 | { |
740 | const char *cp; |
741 | char *zonestr; |
742 | |
743 | for (cp = buf; *cp && isupper((unsigned char)*cp); ++cp) |
744 | {/*empty*/} |
745 | if (cp - buf) { |
d56c6e85 |
746 | zonestr = (char *)alloca(cp - buf + 1); |
16433e2b |
747 | strncpy(zonestr, buf, cp - buf); |
748 | zonestr[cp - buf] = '\0'; |
749 | tzset(); |
750 | if (0 == strcmp(zonestr, "GMT")) { |
751 | got_GMT = 1; |
752 | } else { |
753 | return 0; |
754 | } |
755 | buf += cp - buf; |
756 | } |
757 | } |
758 | break; |
759 | } |
760 | } |
761 | return (char *)buf; |
762 | } |
763 | |
764 | |
765 | char * |
766 | strptime(const char *buf, const char *fmt, struct tm *tm) |
767 | { |
768 | char *ret; |
769 | |
770 | #ifdef _THREAD_SAFE |
771 | pthread_mutex_lock(&gotgmt_mutex); |
772 | #endif |
773 | |
774 | got_GMT = 0; |
775 | ret = _strptime(buf, fmt, tm); |
776 | |
777 | #ifdef _THREAD_SAFE |
778 | pthread_mutex_unlock(&gotgmt_mutex); |
779 | #endif |
780 | |
781 | return ret; |
782 | } |
783 | |
784 | #endif /* Mac OS X */ |
785 | |
786 | MODULE = Time::Piece PACKAGE = Time::Piece |
787 | |
788 | PROTOTYPES: ENABLE |
789 | |
9331e88f |
790 | void |
16433e2b |
791 | _strftime(fmt, sec, min, hour, mday, mon, year, wday = -1, yday = -1, isdst = -1) |
792 | char * fmt |
793 | int sec |
794 | int min |
795 | int hour |
796 | int mday |
797 | int mon |
798 | int year |
799 | int wday |
800 | int yday |
801 | int isdst |
802 | CODE: |
803 | { |
804 | char tmpbuf[128]; |
805 | struct tm mytm; |
806 | int len; |
807 | memset(&mytm, 0, sizeof(mytm)); |
808 | my_init_tm(&mytm); /* XXX workaround - see my_init_tm() above */ |
809 | mytm.tm_sec = sec; |
810 | mytm.tm_min = min; |
811 | mytm.tm_hour = hour; |
812 | mytm.tm_mday = mday; |
813 | mytm.tm_mon = mon; |
814 | mytm.tm_year = year; |
815 | mytm.tm_wday = wday; |
816 | mytm.tm_yday = yday; |
817 | mytm.tm_isdst = isdst; |
818 | my_mini_mktime(&mytm); |
819 | len = strftime(tmpbuf, sizeof tmpbuf, fmt, &mytm); |
820 | /* |
821 | ** The following is needed to handle to the situation where |
822 | ** tmpbuf overflows. Basically we want to allocate a buffer |
823 | ** and try repeatedly. The reason why it is so complicated |
824 | ** is that getting a return value of 0 from strftime can indicate |
825 | ** one of the following: |
826 | ** 1. buffer overflowed, |
827 | ** 2. illegal conversion specifier, or |
828 | ** 3. the format string specifies nothing to be returned(not |
829 | ** an error). This could be because format is an empty string |
830 | ** or it specifies %p that yields an empty string in some locale. |
831 | ** If there is a better way to make it portable, go ahead by |
832 | ** all means. |
833 | */ |
834 | if ((len > 0 && len < sizeof(tmpbuf)) || (len == 0 && *fmt == '\0')) |
835 | ST(0) = sv_2mortal(newSVpv(tmpbuf, len)); |
836 | else { |
837 | /* Possibly buf overflowed - try again with a bigger buf */ |
838 | int fmtlen = strlen(fmt); |
839 | int bufsize = fmtlen + sizeof(tmpbuf); |
840 | char* buf; |
841 | int buflen; |
842 | |
843 | New(0, buf, bufsize, char); |
844 | while (buf) { |
845 | buflen = strftime(buf, bufsize, fmt, &mytm); |
846 | if (buflen > 0 && buflen < bufsize) |
847 | break; |
848 | /* heuristic to prevent out-of-memory errors */ |
849 | if (bufsize > 100*fmtlen) { |
850 | Safefree(buf); |
851 | buf = NULL; |
852 | break; |
853 | } |
854 | bufsize *= 2; |
855 | Renew(buf, bufsize, char); |
856 | } |
857 | if (buf) { |
858 | ST(0) = sv_2mortal(newSVpv(buf, buflen)); |
859 | Safefree(buf); |
860 | } |
861 | else |
862 | ST(0) = sv_2mortal(newSVpv(tmpbuf, len)); |
863 | } |
864 | } |
865 | |
866 | void |
867 | _tzset() |
868 | PPCODE: |
869 | tzset(); |
870 | |
871 | |
872 | void |
873 | _strptime ( string, format ) |
874 | char * string |
875 | char * format |
876 | PREINIT: |
16433e2b |
877 | struct tm mytm; |
878 | time_t t; |
879 | char * remainder; |
16433e2b |
880 | PPCODE: |
881 | t = 0; |
882 | mytm = *gmtime(&t); |
883 | |
884 | remainder = (char *)strptime(string, format, &mytm); |
885 | |
886 | if (remainder == NULL) { |
887 | croak("Error parsing time"); |
888 | } |
889 | |
890 | if (*remainder != '\0') { |
891 | warn("garbage at end of string in strptime: %s", remainder); |
892 | } |
893 | |
894 | my_mini_mktime(&mytm); |
895 | |
896 | /* 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); */ |
897 | |
898 | EXTEND(SP, 11); |
899 | PUSHs(sv_2mortal(newSViv(mytm.tm_sec))); |
900 | PUSHs(sv_2mortal(newSViv(mytm.tm_min))); |
901 | PUSHs(sv_2mortal(newSViv(mytm.tm_hour))); |
902 | PUSHs(sv_2mortal(newSViv(mytm.tm_mday))); |
903 | PUSHs(sv_2mortal(newSViv(mytm.tm_mon))); |
904 | PUSHs(sv_2mortal(newSViv(mytm.tm_year))); |
905 | PUSHs(sv_2mortal(newSViv(mytm.tm_wday))); |
906 | PUSHs(sv_2mortal(newSViv(mytm.tm_yday))); |
907 | /* isdst */ |
908 | PUSHs(sv_2mortal(newSViv(0))); |
909 | /* epoch */ |
910 | PUSHs(sv_2mortal(newSViv(0))); |
911 | /* islocal */ |
912 | PUSHs(sv_2mortal(newSViv(0))); |