strftime.c revision 1.1.1.3
1 #ifndef lint 2 #ifndef NOID 3 static char elsieid[] = "@(#)strftime.c 8.3"; 4 /* 5 ** Based on the UCB version with the ID appearing below. 6 ** This is ANSIish only when "multibyte character == plain character". 7 */ 8 #endif /* !defined NOID */ 9 #endif /* !defined lint */ 10 11 #include "private.h" 12 13 /* 14 ** Copyright (c) 1989 The Regents of the University of California. 15 ** All rights reserved. 16 ** 17 ** Redistribution and use in source and binary forms are permitted 18 ** provided that the above copyright notice and this paragraph are 19 ** duplicated in all such forms and that any documentation, 20 ** advertising materials, and other materials related to such 21 ** distribution and use acknowledge that the software was developed 22 ** by the University of California, Berkeley. The name of the 23 ** University may not be used to endorse or promote products derived 24 ** from this software without specific prior written permission. 25 ** THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 26 ** IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 27 ** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 28 */ 29 30 #ifndef LIBC_SCCS 31 #ifndef lint 32 static const char sccsid[] = "@(#)strftime.c 5.4 (Berkeley) 3/14/89"; 33 #endif /* !defined lint */ 34 #endif /* !defined LIBC_SCCS */ 35 36 #include "tzfile.h" 37 #include "fcntl.h" 38 #include "locale.h" 39 40 struct lc_time_T { 41 const char * mon[MONSPERYEAR]; 42 const char * month[MONSPERYEAR]; 43 const char * wday[DAYSPERWEEK]; 44 const char * weekday[DAYSPERWEEK]; 45 const char * X_fmt; 46 const char * x_fmt; 47 const char * c_fmt; 48 const char * am; 49 const char * pm; 50 const char * date_fmt; 51 }; 52 53 #ifdef LOCALE_HOME 54 #include "sys/stat.h" 55 static struct lc_time_T localebuf; 56 static struct lc_time_T * _loc(void); 57 #define Locale _loc() 58 #endif /* defined LOCALE_HOME */ 59 #ifndef LOCALE_HOME 60 #define Locale (&C_time_locale) 61 #endif /* !defined LOCALE_HOME */ 62 63 static const struct lc_time_T C_time_locale = { 64 { 65 "Jan", "Feb", "Mar", "Apr", "May", "Jun", 66 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" 67 }, { 68 "January", "February", "March", "April", "May", "June", 69 "July", "August", "September", "October", "November", "December" 70 }, { 71 "Sun", "Mon", "Tue", "Wed", 72 "Thu", "Fri", "Sat" 73 }, { 74 "Sunday", "Monday", "Tuesday", "Wednesday", 75 "Thursday", "Friday", "Saturday" 76 }, 77 78 /* X_fmt */ 79 "%H:%M:%S", 80 81 /* 82 ** x_fmt 83 ** C99 requires this format. 84 ** Using just numbers (as here) makes Quakers happier; 85 ** it's also compatible with SVR4. 86 */ 87 "%m/%d/%y", 88 89 /* 90 ** c_fmt 91 ** C99 requires this format. 92 ** Previously this code used "%D %X", but we now conform to C99. 93 ** Note that 94 ** "%a %b %d %H:%M:%S %Y" 95 ** is used by Solaris 2.3. 96 */ 97 "%a %b %e %T %Y", 98 99 /* am */ 100 "AM", 101 102 /* pm */ 103 "PM", 104 105 /* date_fmt */ 106 "%a %b %e %H:%M:%S %Z %Y" 107 }; 108 109 static char * _add(const char *, char *, const char *); 110 static char * _conv(int, const char *, char *, const char *); 111 static char * _fmt(const char *, const struct tm *, char *, const char *, 112 int *); 113 static char * _yconv(int, int, int, int, char *, const char *); 114 115 extern char * tzname[]; 116 117 #ifndef YEAR_2000_NAME 118 #define YEAR_2000_NAME "CHECK_STRFTIME_FORMATS_FOR_TWO_DIGIT_YEARS" 119 #endif /* !defined YEAR_2000_NAME */ 120 121 #define IN_NONE 0 122 #define IN_SOME 1 123 #define IN_THIS 2 124 #define IN_ALL 3 125 126 size_t 127 strftime(s, maxsize, format, t) 128 char * const s; 129 const size_t maxsize; 130 const char * const format; 131 const struct tm * const t; 132 { 133 char * p; 134 int warn; 135 136 tzset(); 137 #ifdef LOCALE_HOME 138 localebuf.mon[0] = 0; 139 #endif /* defined LOCALE_HOME */ 140 warn = IN_NONE; 141 p = _fmt(((format == NULL) ? "%c" : format), t, s, s + maxsize, &warn); 142 #ifndef NO_RUN_TIME_WARNINGS_ABOUT_YEAR_2000_PROBLEMS_THANK_YOU 143 if (warn != IN_NONE && getenv(YEAR_2000_NAME) != NULL) { 144 (void) fprintf(stderr, "\n"); 145 if (format == NULL) 146 (void) fprintf(stderr, "NULL strftime format "); 147 else (void) fprintf(stderr, "strftime format \"%s\" ", 148 format); 149 (void) fprintf(stderr, "yields only two digits of years in "); 150 if (warn == IN_SOME) 151 (void) fprintf(stderr, "some locales"); 152 else if (warn == IN_THIS) 153 (void) fprintf(stderr, "the current locale"); 154 else (void) fprintf(stderr, "all locales"); 155 (void) fprintf(stderr, "\n"); 156 } 157 #endif /* !defined NO_RUN_TIME_WARNINGS_ABOUT_YEAR_2000_PROBLEMS_THANK_YOU */ 158 if (p == s + maxsize) 159 return 0; 160 *p = '\0'; 161 return p - s; 162 } 163 164 static char * 165 _fmt(format, t, pt, ptlim, warnp) 166 const char * format; 167 const struct tm * const t; 168 char * pt; 169 const char * const ptlim; 170 int * warnp; 171 { 172 for ( ; *format; ++format) { 173 if (*format == '%') { 174 label: 175 switch (*++format) { 176 case '\0': 177 --format; 178 break; 179 case 'A': 180 pt = _add((t->tm_wday < 0 || 181 t->tm_wday >= DAYSPERWEEK) ? 182 "?" : Locale->weekday[t->tm_wday], 183 pt, ptlim); 184 continue; 185 case 'a': 186 pt = _add((t->tm_wday < 0 || 187 t->tm_wday >= DAYSPERWEEK) ? 188 "?" : Locale->wday[t->tm_wday], 189 pt, ptlim); 190 continue; 191 case 'B': 192 pt = _add((t->tm_mon < 0 || 193 t->tm_mon >= MONSPERYEAR) ? 194 "?" : Locale->month[t->tm_mon], 195 pt, ptlim); 196 continue; 197 case 'b': 198 case 'h': 199 pt = _add((t->tm_mon < 0 || 200 t->tm_mon >= MONSPERYEAR) ? 201 "?" : Locale->mon[t->tm_mon], 202 pt, ptlim); 203 continue; 204 case 'C': 205 /* 206 ** %C used to do a... 207 ** _fmt("%a %b %e %X %Y", t); 208 ** ...whereas now POSIX 1003.2 calls for 209 ** something completely different. 210 ** (ado, 1993-05-24) 211 */ 212 pt = _yconv(t->tm_year, TM_YEAR_BASE, 1, 0, 213 pt, ptlim); 214 continue; 215 case 'c': 216 { 217 int warn2 = IN_SOME; 218 219 pt = _fmt(Locale->c_fmt, t, pt, ptlim, &warn2); 220 if (warn2 == IN_ALL) 221 warn2 = IN_THIS; 222 if (warn2 > *warnp) 223 *warnp = warn2; 224 } 225 continue; 226 case 'D': 227 pt = _fmt("%m/%d/%y", t, pt, ptlim, warnp); 228 continue; 229 case 'd': 230 pt = _conv(t->tm_mday, "%02d", pt, ptlim); 231 continue; 232 case 'E': 233 case 'O': 234 /* 235 ** C99 locale modifiers. 236 ** The sequences 237 ** %Ec %EC %Ex %EX %Ey %EY 238 ** %Od %oe %OH %OI %Om %OM 239 ** %OS %Ou %OU %OV %Ow %OW %Oy 240 ** are supposed to provide alternate 241 ** representations. 242 */ 243 goto label; 244 case 'e': 245 pt = _conv(t->tm_mday, "%2d", pt, ptlim); 246 continue; 247 case 'F': 248 pt = _fmt("%Y-%m-%d", t, pt, ptlim, warnp); 249 continue; 250 case 'H': 251 pt = _conv(t->tm_hour, "%02d", pt, ptlim); 252 continue; 253 case 'I': 254 pt = _conv((t->tm_hour % 12) ? 255 (t->tm_hour % 12) : 12, 256 "%02d", pt, ptlim); 257 continue; 258 case 'j': 259 pt = _conv(t->tm_yday + 1, "%03d", pt, ptlim); 260 continue; 261 case 'k': 262 /* 263 ** This used to be... 264 ** _conv(t->tm_hour % 12 ? 265 ** t->tm_hour % 12 : 12, 2, ' '); 266 ** ...and has been changed to the below to 267 ** match SunOS 4.1.1 and Arnold Robbins' 268 ** strftime version 3.0. That is, "%k" and 269 ** "%l" have been swapped. 270 ** (ado, 1993-05-24) 271 */ 272 pt = _conv(t->tm_hour, "%2d", pt, ptlim); 273 continue; 274 #ifdef KITCHEN_SINK 275 case 'K': 276 /* 277 ** After all this time, still unclaimed! 278 */ 279 pt = _add("kitchen sink", pt, ptlim); 280 continue; 281 #endif /* defined KITCHEN_SINK */ 282 case 'l': 283 /* 284 ** This used to be... 285 ** _conv(t->tm_hour, 2, ' '); 286 ** ...and has been changed to the below to 287 ** match SunOS 4.1.1 and Arnold Robbin's 288 ** strftime version 3.0. That is, "%k" and 289 ** "%l" have been swapped. 290 ** (ado, 1993-05-24) 291 */ 292 pt = _conv((t->tm_hour % 12) ? 293 (t->tm_hour % 12) : 12, 294 "%2d", pt, ptlim); 295 continue; 296 case 'M': 297 pt = _conv(t->tm_min, "%02d", pt, ptlim); 298 continue; 299 case 'm': 300 pt = _conv(t->tm_mon + 1, "%02d", pt, ptlim); 301 continue; 302 case 'n': 303 pt = _add("\n", pt, ptlim); 304 continue; 305 case 'p': 306 pt = _add((t->tm_hour >= (HOURSPERDAY / 2)) ? 307 Locale->pm : 308 Locale->am, 309 pt, ptlim); 310 continue; 311 case 'R': 312 pt = _fmt("%H:%M", t, pt, ptlim, warnp); 313 continue; 314 case 'r': 315 pt = _fmt("%I:%M:%S %p", t, pt, ptlim, warnp); 316 continue; 317 case 'S': 318 pt = _conv(t->tm_sec, "%02d", pt, ptlim); 319 continue; 320 case 's': 321 { 322 struct tm tm; 323 char buf[INT_STRLEN_MAXIMUM( 324 time_t) + 1]; 325 time_t mkt; 326 327 tm = *t; 328 mkt = mktime(&tm); 329 if (TYPE_SIGNED(time_t)) 330 (void) sprintf(buf, "%ld", 331 (long) mkt); 332 else (void) sprintf(buf, "%lu", 333 (unsigned long) mkt); 334 pt = _add(buf, pt, ptlim); 335 } 336 continue; 337 case 'T': 338 pt = _fmt("%H:%M:%S", t, pt, ptlim, warnp); 339 continue; 340 case 't': 341 pt = _add("\t", pt, ptlim); 342 continue; 343 case 'U': 344 pt = _conv((t->tm_yday + DAYSPERWEEK - 345 t->tm_wday) / DAYSPERWEEK, 346 "%02d", pt, ptlim); 347 continue; 348 case 'u': 349 /* 350 ** From Arnold Robbins' strftime version 3.0: 351 ** "ISO 8601: Weekday as a decimal number 352 ** [1 (Monday) - 7]" 353 ** (ado, 1993-05-24) 354 */ 355 pt = _conv((t->tm_wday == 0) ? 356 DAYSPERWEEK : t->tm_wday, 357 "%d", pt, ptlim); 358 continue; 359 case 'V': /* ISO 8601 week number */ 360 case 'G': /* ISO 8601 year (four digits) */ 361 case 'g': /* ISO 8601 year (two digits) */ 362 /* 363 ** From Arnold Robbins' strftime version 3.0: "the week number of the 364 ** year (the first Monday as the first day of week 1) as a decimal number 365 ** (01-53)." 366 ** (ado, 1993-05-24) 367 ** 368 ** From "http://www.ft.uni-erlangen.de/~mskuhn/iso-time.html" by Markus Kuhn: 369 ** "Week 01 of a year is per definition the first week which has the 370 ** Thursday in this year, which is equivalent to the week which contains 371 ** the fourth day of January. In other words, the first week of a new year 372 ** is the week which has the majority of its days in the new year. Week 01 373 ** might also contain days from the previous year and the week before week 374 ** 01 of a year is the last week (52 or 53) of the previous year even if 375 ** it contains days from the new year. A week starts with Monday (day 1) 376 ** and ends with Sunday (day 7). For example, the first week of the year 377 ** 1997 lasts from 1996-12-30 to 1997-01-05..." 378 ** (ado, 1996-01-02) 379 */ 380 { 381 int year; 382 int base; 383 int yday; 384 int wday; 385 int w; 386 387 year = t->tm_year; 388 base = TM_YEAR_BASE; 389 yday = t->tm_yday; 390 wday = t->tm_wday; 391 for ( ; ; ) { 392 int len; 393 int bot; 394 int top; 395 396 len = isleap_sum(year, base) ? 397 DAYSPERLYEAR : 398 DAYSPERNYEAR; 399 /* 400 ** What yday (-3 ... 3) does 401 ** the ISO year begin on? 402 */ 403 bot = ((yday + 11 - wday) % 404 DAYSPERWEEK) - 3; 405 /* 406 ** What yday does the NEXT 407 ** ISO year begin on? 408 */ 409 top = bot - 410 (len % DAYSPERWEEK); 411 if (top < -3) 412 top += DAYSPERWEEK; 413 top += len; 414 if (yday >= top) { 415 ++base; 416 w = 1; 417 break; 418 } 419 if (yday >= bot) { 420 w = 1 + ((yday - bot) / 421 DAYSPERWEEK); 422 break; 423 } 424 --base; 425 yday += isleap_sum(year, base) ? 426 DAYSPERLYEAR : 427 DAYSPERNYEAR; 428 } 429 #ifdef XPG4_1994_04_09 430 if ((w == 52 && 431 t->tm_mon == TM_JANUARY) || 432 (w == 1 && 433 t->tm_mon == TM_DECEMBER)) 434 w = 53; 435 #endif /* defined XPG4_1994_04_09 */ 436 if (*format == 'V') 437 pt = _conv(w, "%02d", 438 pt, ptlim); 439 else if (*format == 'g') { 440 *warnp = IN_ALL; 441 pt = _yconv(year, base, 0, 1, 442 pt, ptlim); 443 } else pt = _yconv(year, base, 1, 1, 444 pt, ptlim); 445 } 446 continue; 447 case 'v': 448 /* 449 ** From Arnold Robbins' strftime version 3.0: 450 ** "date as dd-bbb-YYYY" 451 ** (ado, 1993-05-24) 452 */ 453 pt = _fmt("%e-%b-%Y", t, pt, ptlim, warnp); 454 continue; 455 case 'W': 456 pt = _conv((t->tm_yday + DAYSPERWEEK - 457 (t->tm_wday ? 458 (t->tm_wday - 1) : 459 (DAYSPERWEEK - 1))) / DAYSPERWEEK, 460 "%02d", pt, ptlim); 461 continue; 462 case 'w': 463 pt = _conv(t->tm_wday, "%d", pt, ptlim); 464 continue; 465 case 'X': 466 pt = _fmt(Locale->X_fmt, t, pt, ptlim, warnp); 467 continue; 468 case 'x': 469 { 470 int warn2 = IN_SOME; 471 472 pt = _fmt(Locale->x_fmt, t, pt, ptlim, &warn2); 473 if (warn2 == IN_ALL) 474 warn2 = IN_THIS; 475 if (warn2 > *warnp) 476 *warnp = warn2; 477 } 478 continue; 479 case 'y': 480 *warnp = IN_ALL; 481 pt = _yconv(t->tm_year, TM_YEAR_BASE, 0, 1, 482 pt, ptlim); 483 continue; 484 case 'Y': 485 pt = _yconv(t->tm_year, TM_YEAR_BASE, 1, 1, 486 pt, ptlim); 487 continue; 488 case 'Z': 489 #ifdef TM_ZONE 490 if (t->TM_ZONE != NULL) 491 pt = _add(t->TM_ZONE, pt, ptlim); 492 else 493 #endif /* defined TM_ZONE */ 494 if (t->tm_isdst >= 0) 495 pt = _add(tzname[t->tm_isdst != 0], 496 pt, ptlim); 497 /* 498 ** C99 says that %Z must be replaced by the 499 ** empty string if the time zone is not 500 ** determinable. 501 */ 502 continue; 503 case 'z': 504 { 505 int diff; 506 char const * sign; 507 508 if (t->tm_isdst < 0) 509 continue; 510 #ifdef TM_GMTOFF 511 diff = t->TM_GMTOFF; 512 #else /* !defined TM_GMTOFF */ 513 /* 514 ** C99 says that the UTC offset must 515 ** be computed by looking only at 516 ** tm_isdst. This requirement is 517 ** incorrect, since it means the code 518 ** must rely on magic (in this case 519 ** altzone and timezone), and the 520 ** magic might not have the correct 521 ** offset. Doing things correctly is 522 ** tricky and requires disobeying C99; 523 ** see GNU C strftime for details. 524 ** For now, punt and conform to the 525 ** standard, even though it's incorrect. 526 ** 527 ** C99 says that %z must be replaced by the 528 ** empty string if the time zone is not 529 ** determinable, so output nothing if the 530 ** appropriate variables are not available. 531 */ 532 if (t->tm_isdst == 0) 533 #ifdef USG_COMPAT 534 diff = -timezone; 535 #else /* !defined USG_COMPAT */ 536 continue; 537 #endif /* !defined USG_COMPAT */ 538 else 539 #ifdef ALTZONE 540 diff = -altzone; 541 #else /* !defined ALTZONE */ 542 continue; 543 #endif /* !defined ALTZONE */ 544 #endif /* !defined TM_GMTOFF */ 545 if (diff < 0) { 546 sign = "-"; 547 diff = -diff; 548 } else sign = "+"; 549 pt = _add(sign, pt, ptlim); 550 diff /= SECSPERMIN; 551 diff = (diff / MINSPERHOUR) * 100 + 552 (diff % MINSPERHOUR); 553 pt = _conv(diff, "%04d", pt, ptlim); 554 } 555 continue; 556 case '+': 557 pt = _fmt(Locale->date_fmt, t, pt, ptlim, 558 warnp); 559 continue; 560 case '%': 561 /* 562 ** X311J/88-090 (4.12.3.5): if conversion char is 563 ** undefined, behavior is undefined. Print out the 564 ** character itself as printf(3) also does. 565 */ 566 default: 567 break; 568 } 569 } 570 if (pt == ptlim) 571 break; 572 *pt++ = *format; 573 } 574 return pt; 575 } 576 577 static char * 578 _conv(n, format, pt, ptlim) 579 const int n; 580 const char * const format; 581 char * const pt; 582 const char * const ptlim; 583 { 584 char buf[INT_STRLEN_MAXIMUM(int) + 1]; 585 586 (void) sprintf(buf, format, n); 587 return _add(buf, pt, ptlim); 588 } 589 590 static char * 591 _add(str, pt, ptlim) 592 const char * str; 593 char * pt; 594 const char * const ptlim; 595 { 596 while (pt < ptlim && (*pt = *str++) != '\0') 597 ++pt; 598 return pt; 599 } 600 601 /* 602 ** POSIX and the C Standard are unclear or inconsistent about 603 ** what %C and %y do if the year is negative or exceeds 9999. 604 ** Use the convention that %C concatenated with %y yields the 605 ** same output as %Y, and that %Y contains at least 4 bytes, 606 ** with more only if necessary. 607 */ 608 609 static char * 610 _yconv(a, b, convert_top, convert_yy, pt, ptlim) 611 const int a; 612 const int b; 613 const int convert_top; 614 const int convert_yy; 615 char * pt; 616 const char * const ptlim; 617 { 618 register int lead; 619 register int trail; 620 621 #define DIVISOR 100 622 trail = a % DIVISOR + b % DIVISOR; 623 lead = a / DIVISOR + b / DIVISOR + trail / DIVISOR; 624 trail %= DIVISOR; 625 if (trail < 0 && lead > 0) { 626 trail += DIVISOR; 627 --lead; 628 } else if (lead < 0 && trail > 0) { 629 trail -= DIVISOR; 630 ++lead; 631 } 632 if (convert_top) { 633 if (lead == 0 && trail < 0) 634 pt = _add("-0", pt, ptlim); 635 else pt = _conv(lead, "%02d", pt, ptlim); 636 } 637 if (convert_yy) 638 pt = _conv(((trail < 0) ? -trail : trail), "%02d", pt, ptlim); 639 return pt; 640 } 641 642 #ifdef LOCALE_HOME 643 static struct lc_time_T * 644 _loc(void) 645 { 646 static const char locale_home[] = LOCALE_HOME; 647 static const char lc_time[] = "LC_TIME"; 648 static char * locale_buf; 649 650 int fd; 651 int oldsun; /* "...ain't got nothin' to do..." */ 652 char * lbuf; 653 char * name; 654 char * p; 655 const char ** ap; 656 const char * plim; 657 char filename[FILENAME_MAX]; 658 struct stat st; 659 size_t namesize; 660 size_t bufsize; 661 662 /* 663 ** Use localebuf.mon[0] to signal whether locale is already set up. 664 */ 665 if (localebuf.mon[0]) 666 return &localebuf; 667 name = setlocale(LC_TIME, (char *) NULL); 668 if (name == NULL || *name == '\0') 669 goto no_locale; 670 /* 671 ** If the locale name is the same as our cache, use the cache. 672 */ 673 lbuf = locale_buf; 674 if (lbuf != NULL && strcmp(name, lbuf) == 0) { 675 p = lbuf; 676 for (ap = (const char **) &localebuf; 677 ap < (const char **) (&localebuf + 1); 678 ++ap) 679 *ap = p += strlen(p) + 1; 680 return &localebuf; 681 } 682 /* 683 ** Slurp the locale file into the cache. 684 */ 685 namesize = strlen(name) + 1; 686 if (sizeof filename < 687 ((sizeof locale_home) + namesize + (sizeof lc_time))) 688 goto no_locale; 689 oldsun = 0; 690 (void) sprintf(filename, "%s/%s/%s", locale_home, name, lc_time); 691 fd = open(filename, O_RDONLY); 692 if (fd < 0) { 693 /* 694 ** Old Sun systems have a different naming and data convention. 695 */ 696 oldsun = 1; 697 (void) sprintf(filename, "%s/%s/%s", locale_home, 698 lc_time, name); 699 fd = open(filename, O_RDONLY); 700 if (fd < 0) 701 goto no_locale; 702 } 703 if (fstat(fd, &st) != 0) 704 goto bad_locale; 705 if (st.st_size <= 0) 706 goto bad_locale; 707 bufsize = namesize + st.st_size; 708 locale_buf = NULL; 709 lbuf = (lbuf == NULL) ? malloc(bufsize) : realloc(lbuf, bufsize); 710 if (lbuf == NULL) 711 goto bad_locale; 712 (void) strcpy(lbuf, name); 713 p = lbuf + namesize; 714 plim = p + st.st_size; 715 if (read(fd, p, (size_t) st.st_size) != st.st_size) 716 goto bad_lbuf; 717 if (close(fd) != 0) 718 goto bad_lbuf; 719 /* 720 ** Parse the locale file into localebuf. 721 */ 722 if (plim[-1] != '\n') 723 goto bad_lbuf; 724 for (ap = (const char **) &localebuf; 725 ap < (const char **) (&localebuf + 1); 726 ++ap) { 727 if (p == plim) 728 goto bad_lbuf; 729 *ap = p; 730 while (*p != '\n') 731 ++p; 732 *p++ = '\0'; 733 } 734 if (oldsun) { 735 /* 736 ** SunOS 4 used an obsolescent format; see localdtconv(3). 737 ** c_fmt had the ``short format for dates and times together'' 738 ** (SunOS 4 date, "%a %b %e %T %Z %Y" in the C locale); 739 ** date_fmt had the ``long format for dates'' 740 ** (SunOS 4 strftime %C, "%A, %B %e, %Y" in the C locale). 741 ** Discard the latter in favor of the former. 742 */ 743 localebuf.date_fmt = localebuf.c_fmt; 744 } 745 /* 746 ** Record the successful parse in the cache. 747 */ 748 locale_buf = lbuf; 749 750 return &localebuf; 751 752 bad_lbuf: 753 free(lbuf); 754 bad_locale: 755 (void) close(fd); 756 no_locale: 757 localebuf = C_time_locale; 758 locale_buf = NULL; 759 return &localebuf; 760 } 761 #endif /* defined LOCALE_HOME */ 762
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