| 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 | |
| 6e073399 |
71 | #ifdef WIN32 |
| 72 | |
| 73 | /* |
| 74 | * (1) The CRT maintains its own copy of the environment, separate from |
| 75 | * the Win32API copy. |
| 76 | * |
| 77 | * (2) CRT getenv() retrieves from this copy. CRT putenv() updates this |
| 78 | * copy, and then calls SetEnvironmentVariableA() to update the Win32API |
| 79 | * copy. |
| 80 | * |
| 81 | * (3) win32_getenv() and win32_putenv() call GetEnvironmentVariableA() and |
| 82 | * SetEnvironmentVariableA() directly, bypassing the CRT copy of the |
| 83 | * environment. |
| 84 | * |
| 85 | * (4) The CRT strftime() "%Z" implementation calls __tzset(). That |
| 86 | * calls CRT tzset(), but only the first time it is called, and in turn |
| 87 | * that uses CRT getenv("TZ") to retrieve the timezone info from the CRT |
| 88 | * local copy of the environment and hence gets the original setting as |
| 89 | * perl never updates the CRT copy when assigning to $ENV{TZ}. |
| 90 | * |
| 91 | * Therefore, we need to retrieve the value of $ENV{TZ} and call CRT |
| 12016aad |
92 | * putenv() to update the CRT copy of the environment (if it is different) |
| 93 | * whenever we're about to call tzset(). |
| 94 | * |
| 95 | * In addition to all that, when perl is built with PERL_IMPLICIT_SYS |
| 96 | * defined: |
| 97 | * |
| 98 | * (a) Each interpreter has its own copy of the environment inside the |
| 99 | * perlhost structure. That allows applications that host multiple |
| 100 | * independent Perl interpreters to isolate environment changes from |
| 101 | * each other. (This is similar to how the perlhost mechanism keeps a |
| 102 | * separate working directory for each Perl interpreter, so that calling |
| 103 | * chdir() will not affect other interpreters.) |
| 104 | * |
| 105 | * (b) Only the first Perl interpreter instantiated within a process will |
| 106 | * "write through" environment changes to the process environment. |
| 107 | * |
| 108 | * (c) Even the primary Perl interpreter won't update the CRT copy of the |
| 109 | * the environment, only the Win32API copy (it calls win32_putenv()). |
| 110 | * |
| 111 | * As with CPerlHost::Getenv() and CPerlHost::Putenv() themselves, it makes |
| 112 | * sense to only update the process environment when inside the main |
| 113 | * interpreter, but we don't have access to CPerlHost's m_bTopLevel member |
| 114 | * from here so we'll just have to check PL_curinterp instead. |
| 115 | * |
| 116 | * Therefore, we can simply #undef getenv() and putenv() so that those names |
| 117 | * always refer to the CRT functions, and explicitly call win32_getenv() to |
| 118 | * access perl's %ENV. |
| 119 | * |
| 120 | * We also #undef malloc() and free() to be sure we are using the CRT |
| 121 | * functions otherwise under PERL_IMPLICIT_SYS they are redefined to calls |
| 122 | * into VMem::Malloc() and VMem::Free() and all allocations will be freed |
| 123 | * when the Perl interpreter is being destroyed so we'd end up with a pointer |
| 124 | * into deallocated memory in environ[] if a program embedding a Perl |
| 125 | * interpreter continues to operate even after the main Perl interpreter has |
| 126 | * been destroyed. |
| 127 | * |
| 128 | * Note that we don't free() the malloc()ed memory unless and until we call |
| 129 | * malloc() again ourselves because the CRT putenv() function simply puts its |
| 130 | * pointer argument into the environ[] arrary (it doesn't make a copy of it) |
| 131 | * so this memory must otherwise be leaked. |
| 6e073399 |
132 | */ |
| 133 | |
| 6e073399 |
134 | #undef getenv |
| 6e073399 |
135 | #undef putenv |
| 12016aad |
136 | #undef malloc |
| 137 | #undef free |
| 6e073399 |
138 | |
| 139 | static void |
| 140 | fix_win32_tzenv(void) |
| 141 | { |
| 12016aad |
142 | static char* oldenv = NULL; |
| 143 | char* newenv; |
| 144 | const char* perl_tz_env = win32_getenv("TZ"); |
| 145 | const char* crt_tz_env = getenv("TZ"); |
| 146 | if (perl_tz_env == NULL) |
| 147 | perl_tz_env = ""; |
| 148 | if (crt_tz_env == NULL) |
| 149 | crt_tz_env = ""; |
| 150 | if (strcmp(perl_tz_env, crt_tz_env) != 0) { |
| 151 | newenv = (char*)malloc((strlen(perl_tz_env) + 4) * sizeof(char)); |
| 152 | if (newenv != NULL) { |
| 153 | sprintf(newenv, "TZ=%s", perl_tz_env); |
| 154 | putenv(newenv); |
| 155 | if (oldenv != NULL) |
| 156 | free(oldenv); |
| 157 | oldenv = newenv; |
| 158 | } |
| 6e073399 |
159 | } |
| 6e073399 |
160 | } |
| 161 | |
| 162 | #endif |
| 163 | |
| 164 | static void |
| 12016aad |
165 | my_tzset(pTHX) |
| 6e073399 |
166 | { |
| 167 | #ifdef WIN32 |
| 12016aad |
168 | #if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS) |
| 169 | if (PL_curinterp == aTHX) |
| 170 | #endif |
| 171 | fix_win32_tzenv(); |
| 6e073399 |
172 | #endif |
| 173 | tzset(); |
| 174 | } |
| 175 | |
| 16433e2b |
176 | /* |
| 177 | * my_mini_mktime - normalise struct tm values without the localtime() |
| 124e6c84 |
178 | * semantics (and overhead) of mktime(). Stolen shamelessly from Perl's |
| 179 | * Perl_mini_mktime() in util.c - for details on the algorithm, see that |
| 180 | * file. |
| 16433e2b |
181 | */ |
| 182 | static void |
| 183 | my_mini_mktime(struct tm *ptm) |
| 184 | { |
| 185 | int yearday; |
| 186 | int secs; |
| 187 | int month, mday, year, jday; |
| 188 | int odd_cent, odd_year; |
| 189 | |
| 16433e2b |
190 | year = 1900 + ptm->tm_year; |
| 191 | month = ptm->tm_mon; |
| 192 | mday = ptm->tm_mday; |
| 193 | /* allow given yday with no month & mday to dominate the result */ |
| 194 | if (ptm->tm_yday >= 0 && mday <= 0 && month <= 0) { |
| 195 | month = 0; |
| 196 | mday = 0; |
| 197 | jday = 1 + ptm->tm_yday; |
| 198 | } |
| 199 | else { |
| 200 | jday = 0; |
| 201 | } |
| 202 | if (month >= 2) |
| 203 | month+=2; |
| 204 | else |
| 205 | month+=14, year--; |
| 206 | |
| 207 | yearday = DAYS_PER_YEAR * year + year/4 - year/100 + year/400; |
| 208 | yearday += month*MONTH_TO_DAYS + mday + jday; |
| 209 | /* |
| 210 | * Note that we don't know when leap-seconds were or will be, |
| 211 | * so we have to trust the user if we get something which looks |
| 212 | * like a sensible leap-second. Wild values for seconds will |
| 213 | * be rationalised, however. |
| 214 | */ |
| 215 | if ((unsigned) ptm->tm_sec <= 60) { |
| 216 | secs = 0; |
| 217 | } |
| 218 | else { |
| 219 | secs = ptm->tm_sec; |
| 220 | ptm->tm_sec = 0; |
| 221 | } |
| 222 | secs += 60 * ptm->tm_min; |
| 223 | secs += SECS_PER_HOUR * ptm->tm_hour; |
| 224 | if (secs < 0) { |
| 225 | if (secs-(secs/SECS_PER_DAY*SECS_PER_DAY) < 0) { |
| 226 | /* got negative remainder, but need positive time */ |
| 227 | /* back off an extra day to compensate */ |
| 228 | yearday += (secs/SECS_PER_DAY)-1; |
| 229 | secs -= SECS_PER_DAY * (secs/SECS_PER_DAY - 1); |
| 230 | } |
| 231 | else { |
| 232 | yearday += (secs/SECS_PER_DAY); |
| 233 | secs -= SECS_PER_DAY * (secs/SECS_PER_DAY); |
| 234 | } |
| 235 | } |
| 236 | else if (secs >= SECS_PER_DAY) { |
| 237 | yearday += (secs/SECS_PER_DAY); |
| 238 | secs %= SECS_PER_DAY; |
| 239 | } |
| 240 | ptm->tm_hour = secs/SECS_PER_HOUR; |
| 241 | secs %= SECS_PER_HOUR; |
| 242 | ptm->tm_min = secs/60; |
| 243 | secs %= 60; |
| 244 | ptm->tm_sec += secs; |
| 245 | /* done with time of day effects */ |
| 246 | /* |
| 247 | * The algorithm for yearday has (so far) left it high by 428. |
| 248 | * To avoid mistaking a legitimate Feb 29 as Mar 1, we need to |
| 249 | * bias it by 123 while trying to figure out what year it |
| 250 | * really represents. Even with this tweak, the reverse |
| 251 | * translation fails for years before A.D. 0001. |
| 252 | * It would still fail for Feb 29, but we catch that one below. |
| 253 | */ |
| 254 | jday = yearday; /* save for later fixup vis-a-vis Jan 1 */ |
| 255 | yearday -= YEAR_ADJUST; |
| 256 | year = (yearday / DAYS_PER_QCENT) * 400; |
| 257 | yearday %= DAYS_PER_QCENT; |
| 258 | odd_cent = yearday / DAYS_PER_CENT; |
| 259 | year += odd_cent * 100; |
| 260 | yearday %= DAYS_PER_CENT; |
| 261 | year += (yearday / DAYS_PER_QYEAR) * 4; |
| 262 | yearday %= DAYS_PER_QYEAR; |
| 263 | odd_year = yearday / DAYS_PER_YEAR; |
| 264 | year += odd_year; |
| 265 | yearday %= DAYS_PER_YEAR; |
| 266 | if (!yearday && (odd_cent==4 || odd_year==4)) { /* catch Feb 29 */ |
| 267 | month = 1; |
| 268 | yearday = 29; |
| 269 | } |
| 270 | else { |
| 271 | yearday += YEAR_ADJUST; /* recover March 1st crock */ |
| 272 | month = yearday*DAYS_TO_MONTH; |
| 273 | yearday -= month*MONTH_TO_DAYS; |
| 274 | /* recover other leap-year adjustment */ |
| 275 | if (month > 13) { |
| 276 | month-=14; |
| 277 | year++; |
| 278 | } |
| 279 | else { |
| 280 | month-=2; |
| 281 | } |
| 282 | } |
| 283 | ptm->tm_year = year - 1900; |
| 284 | if (yearday) { |
| 285 | ptm->tm_mday = yearday; |
| 286 | ptm->tm_mon = month; |
| 287 | } |
| 288 | else { |
| 289 | ptm->tm_mday = 31; |
| 290 | ptm->tm_mon = month - 1; |
| 291 | } |
| 292 | /* re-build yearday based on Jan 1 to get tm_yday */ |
| 293 | year--; |
| 294 | yearday = year*DAYS_PER_YEAR + year/4 - year/100 + year/400; |
| 295 | yearday += 14*MONTH_TO_DAYS + 1; |
| 296 | ptm->tm_yday = jday - yearday; |
| 297 | /* fix tm_wday if not overridden by caller */ |
| 298 | ptm->tm_wday = (jday + WEEKDAY_BIAS) % 7; |
| 299 | } |
| 300 | |
| 12016aad |
301 | #ifndef HAS_STRPTIME |
| 302 | /* Assume everyone has strptime except Win32 and QNX4 */ |
| 303 | # define HAS_STRPTIME 1 |
| 304 | # if defined(WIN32) || (defined(__QNX__) && defined(__WATCOMC__)) |
| 305 | # undef HAS_STRPTIME |
| 306 | # endif |
| 307 | #endif |
| 308 | |
| 309 | #ifndef HAS_STRPTIME |
| 16433e2b |
310 | #define strncasecmp(x,y,n) strnicmp(x,y,n) |
| be8a15fc |
311 | |
| 312 | #if defined(WIN32) |
| 0db9c0cf |
313 | #if defined(__BORLANDC__) |
| 314 | void * __cdecl _EXPFUNC alloca(_SIZE_T __size); |
| 315 | #else |
| 16433e2b |
316 | #define alloca _alloca |
| be8a15fc |
317 | #endif |
| 0db9c0cf |
318 | #endif |
| 124e6c84 |
319 | |
| 320 | /* strptime copied from freebsd with the following copyright: */ |
| 321 | /* |
| 322 | * Copyright (c) 1994 Powerdog Industries. All rights reserved. |
| 323 | * |
| 324 | * Redistribution and use in source and binary forms, with or without |
| 325 | * modification, are permitted provided that the following conditions |
| 326 | * are met: |
| 327 | * 1. Redistributions of source code must retain the above copyright |
| 328 | * notice, this list of conditions and the following disclaimer. |
| 329 | * 2. Redistributions in binary form must reproduce the above copyright |
| 330 | * notice, this list of conditions and the following disclaimer |
| 331 | * in the documentation and/or other materials provided with the |
| 332 | * distribution. |
| 333 | * 3. All advertising materials mentioning features or use of this |
| 334 | * software must display the following acknowledgement: |
| 335 | * This product includes software developed by Powerdog Industries. |
| 336 | * 4. The name of Powerdog Industries may not be used to endorse or |
| 337 | * promote products derived from this software without specific prior |
| 338 | * written permission. |
| 339 | * |
| 340 | * THIS SOFTWARE IS PROVIDED BY POWERDOG INDUSTRIES ``AS IS'' AND ANY |
| 341 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 342 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 343 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE POWERDOG INDUSTRIES BE |
| 344 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 345 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 346 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 347 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 348 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 349 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
| 350 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 351 | */ |
| 352 | |
| 353 | #ifndef lint |
| 354 | #ifndef NOID |
| 355 | static char copyright[] = |
| 356 | "@(#) Copyright (c) 1994 Powerdog Industries. All rights reserved."; |
| 357 | static char sccsid[] = "@(#)strptime.c 0.1 (Powerdog) 94/03/27"; |
| 358 | #endif /* !defined NOID */ |
| 359 | #endif /* not lint */ |
| be8a15fc |
360 | |
| 16433e2b |
361 | #include <time.h> |
| 362 | #include <ctype.h> |
| 363 | #include <string.h> |
| 364 | #ifdef _THREAD_SAFE |
| 365 | #include <pthread.h> |
| 366 | #include "pthread_private.h" |
| 367 | #endif /* _THREAD_SAFE */ |
| 368 | |
| 12016aad |
369 | static char * _strptime(pTHX_ const char *, const char *, struct tm *); |
| 16433e2b |
370 | |
| 371 | #ifdef _THREAD_SAFE |
| 372 | static struct pthread_mutex _gotgmt_mutexd = PTHREAD_MUTEX_STATIC_INITIALIZER; |
| 373 | static pthread_mutex_t gotgmt_mutex = &_gotgmt_mutexd; |
| 374 | #endif |
| 375 | static int got_GMT; |
| 376 | |
| 377 | #define asizeof(a) (sizeof (a) / sizeof ((a)[0])) |
| 378 | |
| 379 | struct lc_time_T { |
| 380 | const char * mon[12]; |
| 381 | const char * month[12]; |
| 382 | const char * wday[7]; |
| 383 | const char * weekday[7]; |
| 384 | const char * X_fmt; |
| 385 | const char * x_fmt; |
| 386 | const char * c_fmt; |
| 387 | const char * am; |
| 388 | const char * pm; |
| 389 | const char * date_fmt; |
| 390 | const char * alt_month[12]; |
| 391 | const char * Ef_fmt; |
| 392 | const char * EF_fmt; |
| 393 | }; |
| 394 | |
| 395 | struct lc_time_T _time_localebuf; |
| 396 | int _time_using_locale; |
| 397 | |
| 398 | const struct lc_time_T _C_time_locale = { |
| 399 | { |
| 400 | "Jan", "Feb", "Mar", "Apr", "May", "Jun", |
| 401 | "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" |
| 402 | }, { |
| 403 | "January", "February", "March", "April", "May", "June", |
| 404 | "July", "August", "September", "October", "November", "December" |
| 405 | }, { |
| 406 | "Sun", "Mon", "Tue", "Wed", |
| 407 | "Thu", "Fri", "Sat" |
| 408 | }, { |
| 409 | "Sunday", "Monday", "Tuesday", "Wednesday", |
| 410 | "Thursday", "Friday", "Saturday" |
| 411 | }, |
| 412 | |
| 413 | /* X_fmt */ |
| 414 | "%H:%M:%S", |
| 415 | |
| 416 | /* |
| 417 | ** x_fmt |
| 418 | ** Since the C language standard calls for |
| 419 | ** "date, using locale's date format," anything goes. |
| 420 | ** Using just numbers (as here) makes Quakers happier; |
| 421 | ** it's also compatible with SVR4. |
| 422 | */ |
| 423 | "%m/%d/%y", |
| 424 | |
| 425 | /* |
| 426 | ** c_fmt (ctime-compatible) |
| 427 | ** Not used, just compatibility placeholder. |
| 428 | */ |
| 429 | NULL, |
| 430 | |
| 431 | /* am */ |
| 432 | "AM", |
| 433 | |
| 434 | /* pm */ |
| 435 | "PM", |
| 436 | |
| 437 | /* date_fmt */ |
| 438 | "%a %Ef %X %Z %Y", |
| 439 | |
| 440 | { |
| 441 | "January", "February", "March", "April", "May", "June", |
| 442 | "July", "August", "September", "October", "November", "December" |
| 443 | }, |
| 444 | |
| 445 | /* Ef_fmt |
| 446 | ** To determine short months / day order |
| 447 | */ |
| 448 | "%b %e", |
| 449 | |
| 450 | /* EF_fmt |
| 451 | ** To determine long months / day order |
| 452 | */ |
| 453 | "%B %e" |
| 454 | }; |
| 455 | |
| 456 | #define Locale (&_C_time_locale) |
| 457 | |
| 458 | static char * |
| 12016aad |
459 | _strptime(pTHX_ const char *buf, const char *fmt, struct tm *tm) |
| 16433e2b |
460 | { |
| 461 | char c; |
| 462 | const char *ptr; |
| 463 | int i, |
| 464 | len; |
| 465 | int Ealternative, Oalternative; |
| 466 | |
| 467 | ptr = fmt; |
| 468 | while (*ptr != 0) { |
| 469 | if (*buf == 0) |
| 470 | break; |
| 471 | |
| 472 | c = *ptr++; |
| 473 | |
| 474 | if (c != '%') { |
| 475 | if (isspace((unsigned char)c)) |
| 476 | while (*buf != 0 && isspace((unsigned char)*buf)) |
| 477 | buf++; |
| 478 | else if (c != *buf++) |
| 479 | return 0; |
| 480 | continue; |
| 481 | } |
| 482 | |
| 483 | Ealternative = 0; |
| 484 | Oalternative = 0; |
| 485 | label: |
| 486 | c = *ptr++; |
| 487 | switch (c) { |
| 488 | case 0: |
| 489 | case '%': |
| 490 | if (*buf++ != '%') |
| 491 | return 0; |
| 492 | break; |
| 493 | |
| 494 | case '+': |
| 12016aad |
495 | buf = _strptime(aTHX_ buf, Locale->date_fmt, tm); |
| 16433e2b |
496 | if (buf == 0) |
| 497 | return 0; |
| 498 | break; |
| 499 | |
| 500 | case 'C': |
| 501 | if (!isdigit((unsigned char)*buf)) |
| 502 | return 0; |
| 503 | |
| 504 | /* XXX This will break for 3-digit centuries. */ |
| 505 | len = 2; |
| 506 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
| 507 | i *= 10; |
| 508 | i += *buf - '0'; |
| 509 | len--; |
| 510 | } |
| 511 | if (i < 19) |
| 512 | return 0; |
| 513 | |
| 514 | tm->tm_year = i * 100 - 1900; |
| 515 | break; |
| 516 | |
| 517 | case 'c': |
| 518 | /* NOTE: c_fmt is intentionally ignored */ |
| 12016aad |
519 | buf = _strptime(aTHX_ buf, "%a %Ef %T %Y", tm); |
| 16433e2b |
520 | if (buf == 0) |
| 521 | return 0; |
| 522 | break; |
| 523 | |
| 524 | case 'D': |
| 12016aad |
525 | buf = _strptime(aTHX_ buf, "%m/%d/%y", tm); |
| 16433e2b |
526 | if (buf == 0) |
| 527 | return 0; |
| 528 | break; |
| 529 | |
| 530 | case 'E': |
| 531 | if (Ealternative || Oalternative) |
| 532 | break; |
| 533 | Ealternative++; |
| 534 | goto label; |
| 535 | |
| 536 | case 'O': |
| 537 | if (Ealternative || Oalternative) |
| 538 | break; |
| 539 | Oalternative++; |
| 540 | goto label; |
| 541 | |
| 542 | case 'F': |
| 543 | case 'f': |
| 544 | if (!Ealternative) |
| 545 | break; |
| 12016aad |
546 | buf = _strptime(aTHX_ buf, (c == 'f') ? Locale->Ef_fmt : Locale->EF_fmt, tm); |
| 16433e2b |
547 | if (buf == 0) |
| 548 | return 0; |
| 549 | break; |
| 550 | |
| 551 | case 'R': |
| 12016aad |
552 | buf = _strptime(aTHX_ buf, "%H:%M", tm); |
| 16433e2b |
553 | if (buf == 0) |
| 554 | return 0; |
| 555 | break; |
| 556 | |
| 557 | case 'r': |
| 12016aad |
558 | buf = _strptime(aTHX_ buf, "%I:%M:%S %p", tm); |
| 16433e2b |
559 | if (buf == 0) |
| 560 | return 0; |
| 561 | break; |
| 562 | |
| 563 | case 'T': |
| 12016aad |
564 | buf = _strptime(aTHX_ buf, "%H:%M:%S", tm); |
| 16433e2b |
565 | if (buf == 0) |
| 566 | return 0; |
| 567 | break; |
| 568 | |
| 569 | case 'X': |
| 12016aad |
570 | buf = _strptime(aTHX_ buf, Locale->X_fmt, tm); |
| 16433e2b |
571 | if (buf == 0) |
| 572 | return 0; |
| 573 | break; |
| 574 | |
| 575 | case 'x': |
| 12016aad |
576 | buf = _strptime(aTHX_ buf, Locale->x_fmt, tm); |
| 16433e2b |
577 | if (buf == 0) |
| 578 | return 0; |
| 579 | break; |
| 580 | |
| 581 | case 'j': |
| 582 | if (!isdigit((unsigned char)*buf)) |
| 583 | return 0; |
| 584 | |
| 585 | len = 3; |
| 586 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
| 587 | i *= 10; |
| 588 | i += *buf - '0'; |
| 589 | len--; |
| 590 | } |
| 591 | if (i < 1 || i > 366) |
| 592 | return 0; |
| 593 | |
| 594 | tm->tm_yday = i - 1; |
| 595 | break; |
| 596 | |
| 597 | case 'M': |
| 598 | case 'S': |
| 599 | if (*buf == 0 || isspace((unsigned char)*buf)) |
| 600 | break; |
| 601 | |
| 602 | if (!isdigit((unsigned char)*buf)) |
| 603 | return 0; |
| 604 | |
| 605 | len = 2; |
| 606 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
| 607 | i *= 10; |
| 608 | i += *buf - '0'; |
| 609 | len--; |
| 610 | } |
| 611 | |
| 612 | if (c == 'M') { |
| 613 | if (i > 59) |
| 614 | return 0; |
| 615 | tm->tm_min = i; |
| 616 | } else { |
| 617 | if (i > 60) |
| 618 | return 0; |
| 619 | tm->tm_sec = i; |
| 620 | } |
| 621 | |
| 622 | if (*buf != 0 && isspace((unsigned char)*buf)) |
| 623 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
| 624 | ptr++; |
| 625 | break; |
| 626 | |
| 627 | case 'H': |
| 628 | case 'I': |
| 629 | case 'k': |
| 630 | case 'l': |
| 631 | /* |
| 632 | * Of these, %l is the only specifier explicitly |
| 633 | * documented as not being zero-padded. However, |
| 634 | * there is no harm in allowing zero-padding. |
| 635 | * |
| 636 | * XXX The %l specifier may gobble one too many |
| 637 | * digits if used incorrectly. |
| 638 | */ |
| 639 | if (!isdigit((unsigned char)*buf)) |
| 640 | return 0; |
| 641 | |
| 642 | len = 2; |
| 643 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
| 644 | i *= 10; |
| 645 | i += *buf - '0'; |
| 646 | len--; |
| 647 | } |
| 648 | if (c == 'H' || c == 'k') { |
| 649 | if (i > 23) |
| 650 | return 0; |
| 651 | } else if (i > 12) |
| 652 | return 0; |
| 653 | |
| 654 | tm->tm_hour = i; |
| 655 | |
| 656 | if (*buf != 0 && isspace((unsigned char)*buf)) |
| 657 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
| 658 | ptr++; |
| 659 | break; |
| 660 | |
| 661 | case 'p': |
| 662 | /* |
| 663 | * XXX This is bogus if parsed before hour-related |
| 664 | * specifiers. |
| 665 | */ |
| 666 | len = strlen(Locale->am); |
| 667 | if (strncasecmp(buf, Locale->am, len) == 0) { |
| 668 | if (tm->tm_hour > 12) |
| 669 | return 0; |
| 670 | if (tm->tm_hour == 12) |
| 671 | tm->tm_hour = 0; |
| 672 | buf += len; |
| 673 | break; |
| 674 | } |
| 675 | |
| 676 | len = strlen(Locale->pm); |
| 677 | if (strncasecmp(buf, Locale->pm, len) == 0) { |
| 678 | if (tm->tm_hour > 12) |
| 679 | return 0; |
| 680 | if (tm->tm_hour != 12) |
| 681 | tm->tm_hour += 12; |
| 682 | buf += len; |
| 683 | break; |
| 684 | } |
| 685 | |
| 686 | return 0; |
| 687 | |
| 688 | case 'A': |
| 689 | case 'a': |
| 690 | for (i = 0; i < asizeof(Locale->weekday); i++) { |
| 691 | if (c == 'A') { |
| 692 | len = strlen(Locale->weekday[i]); |
| 693 | if (strncasecmp(buf, |
| 694 | Locale->weekday[i], |
| 695 | len) == 0) |
| 696 | break; |
| 697 | } else { |
| 698 | len = strlen(Locale->wday[i]); |
| 699 | if (strncasecmp(buf, |
| 700 | Locale->wday[i], |
| 701 | len) == 0) |
| 702 | break; |
| 703 | } |
| 704 | } |
| 705 | if (i == asizeof(Locale->weekday)) |
| 706 | return 0; |
| 707 | |
| 708 | tm->tm_wday = i; |
| 709 | buf += len; |
| 710 | break; |
| 711 | |
| 712 | case 'U': |
| 713 | case 'W': |
| 714 | /* |
| 715 | * XXX This is bogus, as we can not assume any valid |
| 716 | * information present in the tm structure at this |
| 717 | * point to calculate a real value, so just check the |
| 718 | * range for now. |
| 719 | */ |
| 720 | if (!isdigit((unsigned char)*buf)) |
| 721 | return 0; |
| 722 | |
| 723 | len = 2; |
| 724 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
| 725 | i *= 10; |
| 726 | i += *buf - '0'; |
| 727 | len--; |
| 728 | } |
| 729 | if (i > 53) |
| 730 | return 0; |
| 731 | |
| 732 | if (*buf != 0 && isspace((unsigned char)*buf)) |
| 733 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
| 734 | ptr++; |
| 735 | break; |
| 736 | |
| 737 | case 'w': |
| 738 | if (!isdigit((unsigned char)*buf)) |
| 739 | return 0; |
| 740 | |
| 741 | i = *buf - '0'; |
| 742 | if (i > 6) |
| 743 | return 0; |
| 744 | |
| 745 | tm->tm_wday = 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 'd': |
| 753 | case 'e': |
| 754 | /* |
| 755 | * The %e specifier is explicitly documented as not |
| 756 | * being zero-padded but there is no harm in allowing |
| 757 | * such padding. |
| 758 | * |
| 759 | * XXX The %e specifier may gobble one too many |
| 760 | * digits if used incorrectly. |
| 761 | */ |
| 762 | if (!isdigit((unsigned char)*buf)) |
| 763 | return 0; |
| 764 | |
| 765 | len = 2; |
| 766 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
| 767 | i *= 10; |
| 768 | i += *buf - '0'; |
| 769 | len--; |
| 770 | } |
| 771 | if (i > 31) |
| 772 | return 0; |
| 773 | |
| 774 | tm->tm_mday = i; |
| 775 | |
| 776 | if (*buf != 0 && isspace((unsigned char)*buf)) |
| 777 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
| 778 | ptr++; |
| 779 | break; |
| 780 | |
| 781 | case 'B': |
| 782 | case 'b': |
| 783 | case 'h': |
| 784 | for (i = 0; i < asizeof(Locale->month); i++) { |
| 785 | if (Oalternative) { |
| 786 | if (c == 'B') { |
| 787 | len = strlen(Locale->alt_month[i]); |
| 788 | if (strncasecmp(buf, |
| 789 | Locale->alt_month[i], |
| 790 | len) == 0) |
| 791 | break; |
| 792 | } |
| 793 | } else { |
| 794 | if (c == 'B') { |
| 795 | len = strlen(Locale->month[i]); |
| 796 | if (strncasecmp(buf, |
| 797 | Locale->month[i], |
| 798 | len) == 0) |
| 799 | break; |
| 800 | } else { |
| 801 | len = strlen(Locale->mon[i]); |
| 802 | if (strncasecmp(buf, |
| 803 | Locale->mon[i], |
| 804 | len) == 0) |
| 805 | break; |
| 806 | } |
| 807 | } |
| 808 | } |
| 809 | if (i == asizeof(Locale->month)) |
| 810 | return 0; |
| 811 | |
| 812 | tm->tm_mon = i; |
| 813 | buf += len; |
| 814 | break; |
| 815 | |
| 816 | case 'm': |
| 817 | if (!isdigit((unsigned char)*buf)) |
| 818 | return 0; |
| 819 | |
| 820 | len = 2; |
| 821 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
| 822 | i *= 10; |
| 823 | i += *buf - '0'; |
| 824 | len--; |
| 825 | } |
| 826 | if (i < 1 || i > 12) |
| 827 | return 0; |
| 828 | |
| 829 | tm->tm_mon = i - 1; |
| 830 | |
| 831 | if (*buf != 0 && isspace((unsigned char)*buf)) |
| 832 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
| 833 | ptr++; |
| 834 | break; |
| 835 | |
| 836 | case 'Y': |
| 837 | case 'y': |
| 838 | if (*buf == 0 || isspace((unsigned char)*buf)) |
| 839 | break; |
| 840 | |
| 841 | if (!isdigit((unsigned char)*buf)) |
| 842 | return 0; |
| 843 | |
| 844 | len = (c == 'Y') ? 4 : 2; |
| 845 | for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { |
| 846 | i *= 10; |
| 847 | i += *buf - '0'; |
| 848 | len--; |
| 849 | } |
| 850 | if (c == 'Y') |
| 851 | i -= 1900; |
| 852 | if (c == 'y' && i < 69) |
| 853 | i += 100; |
| 854 | if (i < 0) |
| 855 | return 0; |
| 856 | |
| 857 | tm->tm_year = i; |
| 858 | |
| 859 | if (*buf != 0 && isspace((unsigned char)*buf)) |
| 860 | while (*ptr != 0 && !isspace((unsigned char)*ptr)) |
| 861 | ptr++; |
| 862 | break; |
| 863 | |
| 864 | case 'Z': |
| 865 | { |
| 866 | const char *cp; |
| 867 | char *zonestr; |
| 868 | |
| 869 | for (cp = buf; *cp && isupper((unsigned char)*cp); ++cp) |
| 870 | {/*empty*/} |
| 871 | if (cp - buf) { |
| d56c6e85 |
872 | zonestr = (char *)alloca(cp - buf + 1); |
| 16433e2b |
873 | strncpy(zonestr, buf, cp - buf); |
| 874 | zonestr[cp - buf] = '\0'; |
| 12016aad |
875 | my_tzset(aTHX); |
| 16433e2b |
876 | if (0 == strcmp(zonestr, "GMT")) { |
| 877 | got_GMT = 1; |
| 878 | } else { |
| 879 | return 0; |
| 880 | } |
| 881 | buf += cp - buf; |
| 882 | } |
| 883 | } |
| 884 | break; |
| 885 | } |
| 886 | } |
| 887 | return (char *)buf; |
| 888 | } |
| 889 | |
| 890 | |
| 891 | char * |
| 12016aad |
892 | strptime(pTHX_ const char *buf, const char *fmt, struct tm *tm) |
| 16433e2b |
893 | { |
| 894 | char *ret; |
| 895 | |
| 896 | #ifdef _THREAD_SAFE |
| 897 | pthread_mutex_lock(&gotgmt_mutex); |
| 898 | #endif |
| 899 | |
| 900 | got_GMT = 0; |
| 12016aad |
901 | ret = _strptime(aTHX_ buf, fmt, tm); |
| 16433e2b |
902 | |
| 903 | #ifdef _THREAD_SAFE |
| 904 | pthread_mutex_unlock(&gotgmt_mutex); |
| 905 | #endif |
| 906 | |
| 907 | return ret; |
| 908 | } |
| 909 | |
| 12016aad |
910 | #endif /* !HAS_STRPTIME */ |
| 16433e2b |
911 | |
| 912 | MODULE = Time::Piece PACKAGE = Time::Piece |
| 913 | |
| 914 | PROTOTYPES: ENABLE |
| 915 | |
| 9331e88f |
916 | void |
| 16433e2b |
917 | _strftime(fmt, sec, min, hour, mday, mon, year, wday = -1, yday = -1, isdst = -1) |
| 918 | char * fmt |
| 919 | int sec |
| 920 | int min |
| 921 | int hour |
| 922 | int mday |
| 923 | int mon |
| 924 | int year |
| 925 | int wday |
| 926 | int yday |
| 927 | int isdst |
| 928 | CODE: |
| 929 | { |
| 930 | char tmpbuf[128]; |
| 931 | struct tm mytm; |
| 932 | int len; |
| 933 | memset(&mytm, 0, sizeof(mytm)); |
| 934 | my_init_tm(&mytm); /* XXX workaround - see my_init_tm() above */ |
| 935 | mytm.tm_sec = sec; |
| 936 | mytm.tm_min = min; |
| 937 | mytm.tm_hour = hour; |
| 938 | mytm.tm_mday = mday; |
| 939 | mytm.tm_mon = mon; |
| 940 | mytm.tm_year = year; |
| 941 | mytm.tm_wday = wday; |
| 942 | mytm.tm_yday = yday; |
| 943 | mytm.tm_isdst = isdst; |
| 944 | my_mini_mktime(&mytm); |
| 945 | len = strftime(tmpbuf, sizeof tmpbuf, fmt, &mytm); |
| 946 | /* |
| 947 | ** The following is needed to handle to the situation where |
| 948 | ** tmpbuf overflows. Basically we want to allocate a buffer |
| 949 | ** and try repeatedly. The reason why it is so complicated |
| 950 | ** is that getting a return value of 0 from strftime can indicate |
| 951 | ** one of the following: |
| 952 | ** 1. buffer overflowed, |
| 953 | ** 2. illegal conversion specifier, or |
| 954 | ** 3. the format string specifies nothing to be returned(not |
| 955 | ** an error). This could be because format is an empty string |
| 956 | ** or it specifies %p that yields an empty string in some locale. |
| 957 | ** If there is a better way to make it portable, go ahead by |
| 958 | ** all means. |
| 959 | */ |
| 960 | if ((len > 0 && len < sizeof(tmpbuf)) || (len == 0 && *fmt == '\0')) |
| 961 | ST(0) = sv_2mortal(newSVpv(tmpbuf, len)); |
| 962 | else { |
| 963 | /* Possibly buf overflowed - try again with a bigger buf */ |
| 964 | int fmtlen = strlen(fmt); |
| 965 | int bufsize = fmtlen + sizeof(tmpbuf); |
| 966 | char* buf; |
| 967 | int buflen; |
| 968 | |
| 969 | New(0, buf, bufsize, char); |
| 970 | while (buf) { |
| 971 | buflen = strftime(buf, bufsize, fmt, &mytm); |
| 972 | if (buflen > 0 && buflen < bufsize) |
| 973 | break; |
| 974 | /* heuristic to prevent out-of-memory errors */ |
| 975 | if (bufsize > 100*fmtlen) { |
| 976 | Safefree(buf); |
| 977 | buf = NULL; |
| 978 | break; |
| 979 | } |
| 980 | bufsize *= 2; |
| 981 | Renew(buf, bufsize, char); |
| 982 | } |
| 983 | if (buf) { |
| 984 | ST(0) = sv_2mortal(newSVpv(buf, buflen)); |
| 985 | Safefree(buf); |
| 986 | } |
| 987 | else |
| 988 | ST(0) = sv_2mortal(newSVpv(tmpbuf, len)); |
| 989 | } |
| 990 | } |
| 991 | |
| 992 | void |
| 993 | _tzset() |
| 994 | PPCODE: |
| 12016aad |
995 | my_tzset(aTHX); |
| 16433e2b |
996 | |
| 997 | |
| 998 | void |
| 999 | _strptime ( string, format ) |
| 1000 | char * string |
| 1001 | char * format |
| 1002 | PREINIT: |
| 16433e2b |
1003 | struct tm mytm; |
| 1004 | time_t t; |
| 1005 | char * remainder; |
| 16433e2b |
1006 | PPCODE: |
| 1007 | t = 0; |
| 1008 | mytm = *gmtime(&t); |
| 12016aad |
1009 | #ifdef HAS_STRPTIME |
| 16433e2b |
1010 | remainder = (char *)strptime(string, format, &mytm); |
| 12016aad |
1011 | #else |
| 1012 | remainder = (char *)strptime(aTHX_ string, format, &mytm); |
| 1013 | #endif |
| 16433e2b |
1014 | if (remainder == NULL) { |
| 1015 | croak("Error parsing time"); |
| 1016 | } |
| 16433e2b |
1017 | if (*remainder != '\0') { |
| 1018 | warn("garbage at end of string in strptime: %s", remainder); |
| 1019 | } |
| 1020 | |
| 1021 | my_mini_mktime(&mytm); |
| 1022 | |
| 1023 | /* 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); */ |
| 1024 | |
| 1025 | EXTEND(SP, 11); |
| 1026 | PUSHs(sv_2mortal(newSViv(mytm.tm_sec))); |
| 1027 | PUSHs(sv_2mortal(newSViv(mytm.tm_min))); |
| 1028 | PUSHs(sv_2mortal(newSViv(mytm.tm_hour))); |
| 1029 | PUSHs(sv_2mortal(newSViv(mytm.tm_mday))); |
| 1030 | PUSHs(sv_2mortal(newSViv(mytm.tm_mon))); |
| 1031 | PUSHs(sv_2mortal(newSViv(mytm.tm_year))); |
| 1032 | PUSHs(sv_2mortal(newSViv(mytm.tm_wday))); |
| 1033 | PUSHs(sv_2mortal(newSViv(mytm.tm_yday))); |
| 1034 | /* isdst */ |
| 1035 | PUSHs(sv_2mortal(newSViv(0))); |
| 1036 | /* epoch */ |
| 1037 | PUSHs(sv_2mortal(newSViv(0))); |
| 1038 | /* islocal */ |
| 1039 | PUSHs(sv_2mortal(newSViv(0))); |
| 3df1a9e2 |
1040 | |
| 1041 | void |
| 1042 | _mini_mktime(int sec, int min, int hour, int mday, int mon, int year) |
| 1043 | PREINIT: |
| 1044 | struct tm mytm; |
| 1045 | time_t t; |
| 1046 | PPCODE: |
| 1047 | t = 0; |
| 1048 | mytm = *gmtime(&t); |
| 1049 | |
| 1050 | mytm.tm_sec = sec; |
| 1051 | mytm.tm_min = min; |
| 1052 | mytm.tm_hour = hour; |
| 1053 | mytm.tm_mday = mday; |
| 1054 | mytm.tm_mon = mon; |
| 1055 | mytm.tm_year = year; |
| 1056 | |
| 1057 | my_mini_mktime(&mytm); |
| 1058 | |
| 1059 | EXTEND(SP, 11); |
| 1060 | PUSHs(sv_2mortal(newSViv(mytm.tm_sec))); |
| 1061 | PUSHs(sv_2mortal(newSViv(mytm.tm_min))); |
| 1062 | PUSHs(sv_2mortal(newSViv(mytm.tm_hour))); |
| 1063 | PUSHs(sv_2mortal(newSViv(mytm.tm_mday))); |
| 1064 | PUSHs(sv_2mortal(newSViv(mytm.tm_mon))); |
| 1065 | PUSHs(sv_2mortal(newSViv(mytm.tm_year))); |
| 1066 | PUSHs(sv_2mortal(newSViv(mytm.tm_wday))); |
| 1067 | PUSHs(sv_2mortal(newSViv(mytm.tm_yday))); |
| 1068 | /* isdst */ |
| 1069 | PUSHs(sv_2mortal(newSViv(0))); |
| 1070 | /* epoch */ |
| 1071 | PUSHs(sv_2mortal(newSViv(0))); |
| 1072 | /* islocal */ |
| 1073 | PUSHs(sv_2mortal(newSViv(0))); |
projects / p5sagit/p5-mst-13.2.git / blame