1 #if defined(LIBC_SCCS) && !defined(lint) && !defined(NOID) 2 static char elsieid[] = "@(#)strftime.c 7.64"; 3 static char *rcsid = "$OpenBSD: strftime.c,v 1.11 2002/06/19 14:56:28 millert Exp $"; 4 #endif /* LIBC_SCCS and not lint */ 5 6 #include "private.h" 7 8 /* 9 ** Based on the UCB version with the ID appearing below. 10 ** This is ANSIish only when "multibyte character == plain character". 11 ** 12 ** Copyright (c) 1989, 1993 13 ** The Regents of the University of California. All rights reserved. 14 ** 15 ** Redistribution and use in source and binary forms, with or without 16 ** modification, are permitted provided that the following conditions 17 ** are met: 18 ** 1. Redistributions of source code must retain the above copyright 19 ** notice, this list of conditions and the following disclaimer. 20 ** 2. Redistributions in binary form must reproduce the above copyright 21 ** notice, this list of conditions and the following disclaimer in the 22 ** documentation and/or other materials provided with the distribution. 23 ** 3. All advertising materials mentioning features or use of this software 24 ** must display the following acknowledgement: 25 ** This product includes software developed by the University of 26 ** California, Berkeley and its contributors. 27 ** 4. Neither the name of the University nor the names of its contributors 28 ** may be used to endorse or promote products derived from this software 29 ** without specific prior written permission. 30 ** 31 ** THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 32 ** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 33 ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 34 ** ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 35 ** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 ** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 ** OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 ** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 39 ** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 40 ** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 41 ** SUCH DAMAGE. 42 */ 43 44 #if 0 45 #ifndef LIBC_SCCS 46 #ifndef lint 47 static const char sccsid[] = "@(#)strftime.c 5.4 (Berkeley) 3/14/89"; 48 #endif /* !defined lint */ 49 #endif /* !defined LIBC_SCCS */ 50 #endif 51 52 #include "tzfile.h" 53 #include "fcntl.h" 54 #include "locale.h" 55 56 struct lc_time_T { 57 const char * mon[MONSPERYEAR]; 58 const char * month[MONSPERYEAR]; 59 const char * wday[DAYSPERWEEK]; 60 const char * weekday[DAYSPERWEEK]; 61 const char * X_fmt; 62 const char * x_fmt; 63 const char * c_fmt; 64 const char * am; 65 const char * pm; 66 const char * date_fmt; 67 }; 68 69 #ifdef LOCALE_HOME 70 #include "sys/stat.h" 71 static struct lc_time_T localebuf; 72 static struct lc_time_T * _loc P((void)); 73 #define Locale _loc() 74 #endif /* defined LOCALE_HOME */ 75 #ifndef LOCALE_HOME 76 #define Locale (&C_time_locale) 77 #endif /* !defined LOCALE_HOME */ 78 79 static const struct lc_time_T C_time_locale = { 80 { 81 "Jan", "Feb", "Mar", "Apr", "May", "Jun", 82 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" 83 }, { 84 "January", "February", "March", "April", "May", "June", 85 "July", "August", "September", "October", "November", "December" 86 }, { 87 "Sun", "Mon", "Tue", "Wed", 88 "Thu", "Fri", "Sat" 89 }, { 90 "Sunday", "Monday", "Tuesday", "Wednesday", 91 "Thursday", "Friday", "Saturday" 92 }, 93 94 /* X_fmt */ 95 "%H:%M:%S", 96 97 /* 98 ** x_fmt 99 ** C99 requires this format. 100 ** Using just numbers (as here) makes Quakers happier; 101 ** it's also compatible with SVR4. 102 */ 103 "%m/%d/%y", 104 105 /* 106 ** c_fmt 107 ** C99 requires this format. 108 ** Previously this code used "%D %X", but we now conform to C99. 109 ** Note that 110 ** "%a %b %d %H:%M:%S %Y" 111 ** is used by Solaris 2.3. 112 */ 113 "%a %b %e %T %Y", 114 115 /* am */ 116 "AM", 117 118 /* pm */ 119 "PM", 120 121 /* date_fmt */ 122 "%a %b %e %H:%M:%S %Z %Y" 123 }; 124 125 static char * _add P((const char *, char *, const char *)); 126 static char * _conv P((int, const char *, char *, const char *)); 127 static char * _fmt P((const char *, const struct tm *, char *, const char *, int *)); 128 129 size_t strftime P((char *, size_t, const char *, const struct tm *)); 130 131 extern char * tzname[]; 132 133 #ifndef YEAR_2000_NAME 134 #define YEAR_2000_NAME "CHECK_STRFTIME_FORMATS_FOR_TWO_DIGIT_YEARS" 135 #endif /* !defined YEAR_2000_NAME */ 136 137 138 #define IN_NONE 0 139 #define IN_SOME 1 140 #define IN_THIS 2 141 #define IN_ALL 3 142 143 size_t 144 strftime(s, maxsize, format, t) 145 char * const s; 146 const size_t maxsize; 147 const char * const format; 148 const struct tm * const t; 149 { 150 char * p; 151 int warn; 152 153 tzset(); 154 #ifdef LOCALE_HOME 155 localebuf.mon[0] = 0; 156 #endif /* defined LOCALE_HOME */ 157 warn = IN_NONE; 158 p = _fmt(((format == NULL) ? "%c" : format), t, s, s + maxsize, &warn); 159 #ifndef NO_RUN_TIME_WARNINGS_ABOUT_YEAR_2000_PROBLEMS_THANK_YOU 160 if (warn != IN_NONE && getenv(YEAR_2000_NAME) != NULL) { 161 (void) fprintf(stderr, "\n"); 162 if (format == NULL) 163 (void) fprintf(stderr, "NULL strftime format "); 164 else (void) fprintf(stderr, "strftime format \"%s\" ", 165 format); 166 (void) fprintf(stderr, "yields only two digits of years in "); 167 if (warn == IN_SOME) 168 (void) fprintf(stderr, "some locales"); 169 else if (warn == IN_THIS) 170 (void) fprintf(stderr, "the current locale"); 171 else (void) fprintf(stderr, "all locales"); 172 (void) fprintf(stderr, "\n"); 173 } 174 #endif /* !defined NO_RUN_TIME_WARNINGS_ABOUT_YEAR_2000_PROBLEMS_THANK_YOU */ 175 if (p == s + maxsize) { 176 if (maxsize > 0) 177 s[maxsize - 1] = '\0'; 178 return 0; 179 } 180 *p = '\0'; 181 return p - s; 182 } 183 184 static char * 185 _fmt(format, t, pt, ptlim, warnp) 186 const char * format; 187 const struct tm * const t; 188 char * pt; 189 const char * const ptlim; 190 int * warnp; 191 { 192 for ( ; *format; ++format) { 193 if (*format == '%') { 194 label: 195 switch (*++format) { 196 case '\0': 197 --format; 198 break; 199 case 'A': 200 pt = _add((t->tm_wday < 0 || 201 t->tm_wday >= DAYSPERWEEK) ? 202 "?" : Locale->weekday[t->tm_wday], 203 pt, ptlim); 204 continue; 205 case 'a': 206 pt = _add((t->tm_wday < 0 || 207 t->tm_wday >= DAYSPERWEEK) ? 208 "?" : Locale->wday[t->tm_wday], 209 pt, ptlim); 210 continue; 211 case 'B': 212 pt = _add((t->tm_mon < 0 || 213 t->tm_mon >= MONSPERYEAR) ? 214 "?" : Locale->month[t->tm_mon], 215 pt, ptlim); 216 continue; 217 case 'b': 218 case 'h': 219 pt = _add((t->tm_mon < 0 || 220 t->tm_mon >= MONSPERYEAR) ? 221 "?" : Locale->mon[t->tm_mon], 222 pt, ptlim); 223 continue; 224 case 'C': 225 /* 226 ** %C used to do a... 227 ** _fmt("%a %b %e %X %Y", t); 228 ** ...whereas now POSIX 1003.2 calls for 229 ** something completely different. 230 ** (ado, 1993-05-24) 231 */ 232 pt = _conv((t->tm_year + TM_YEAR_BASE) / 100, 233 "%02d", pt, ptlim); 234 continue; 235 case 'c': 236 { 237 int warn2 = IN_SOME; 238 239 pt = _fmt(Locale->c_fmt, t, pt, ptlim, warnp); 240 if (warn2 == IN_ALL) 241 warn2 = IN_THIS; 242 if (warn2 > *warnp) 243 *warnp = warn2; 244 } 245 continue; 246 case 'D': 247 pt = _fmt("%m/%d/%y", t, pt, ptlim, warnp); 248 continue; 249 case 'd': 250 pt = _conv(t->tm_mday, "%02d", pt, ptlim); 251 continue; 252 case 'E': 253 case 'O': 254 /* 255 ** C99 locale modifiers. 256 ** The sequences 257 ** %Ec %EC %Ex %EX %Ey %EY 258 ** %Od %oe %OH %OI %Om %OM 259 ** %OS %Ou %OU %OV %Ow %OW %Oy 260 ** are supposed to provide alternate 261 ** representations. 262 */ 263 goto label; 264 case 'e': 265 pt = _conv(t->tm_mday, "%2d", pt, ptlim); 266 continue; 267 case 'F': 268 pt = _fmt("%Y-%m-%d", t, pt, ptlim, warnp); 269 continue; 270 case 'H': 271 pt = _conv(t->tm_hour, "%02d", pt, ptlim); 272 continue; 273 case 'I': 274 pt = _conv((t->tm_hour % 12) ? 275 (t->tm_hour % 12) : 12, 276 "%02d", pt, ptlim); 277 continue; 278 case 'j': 279 pt = _conv(t->tm_yday + 1, "%03d", pt, ptlim); 280 continue; 281 case 'k': 282 /* 283 ** This used to be... 284 ** _conv(t->tm_hour % 12 ? 285 ** t->tm_hour % 12 : 12, 2, ' '); 286 ** ...and has been changed to the below to 287 ** match SunOS 4.1.1 and Arnold Robbins' 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, "%2d", pt, ptlim); 293 continue; 294 #ifdef KITCHEN_SINK 295 case 'K': 296 /* 297 ** After all this time, still unclaimed! 298 */ 299 pt = _add("kitchen sink", pt, ptlim); 300 continue; 301 #endif /* defined KITCHEN_SINK */ 302 case 'l': 303 /* 304 ** This used to be... 305 ** _conv(t->tm_hour, 2, ' '); 306 ** ...and has been changed to the below to 307 ** match SunOS 4.1.1 and Arnold Robbin's 308 ** strftime version 3.0. That is, "%k" and 309 ** "%l" have been swapped. 310 ** (ado, 1993-05-24) 311 */ 312 pt = _conv((t->tm_hour % 12) ? 313 (t->tm_hour % 12) : 12, 314 "%2d", pt, ptlim); 315 continue; 316 case 'M': 317 pt = _conv(t->tm_min, "%02d", pt, ptlim); 318 continue; 319 case 'm': 320 pt = _conv(t->tm_mon + 1, "%02d", pt, ptlim); 321 continue; 322 case 'n': 323 pt = _add("\n", pt, ptlim); 324 continue; 325 case 'p': 326 pt = _add((t->tm_hour >= (HOURSPERDAY / 2)) ? 327 Locale->pm : 328 Locale->am, 329 pt, ptlim); 330 continue; 331 case 'R': 332 pt = _fmt("%H:%M", t, pt, ptlim, warnp); 333 continue; 334 case 'r': 335 pt = _fmt("%I:%M:%S %p", t, pt, ptlim, warnp); 336 continue; 337 case 'S': 338 pt = _conv(t->tm_sec, "%02d", pt, ptlim); 339 continue; 340 case 's': 341 { 342 struct tm tm; 343 char buf[INT_STRLEN_MAXIMUM( 344 time_t) + 1]; 345 time_t mkt; 346 347 tm = *t; 348 mkt = mktime(&tm); 349 if (TYPE_SIGNED(time_t)) 350 (void) snprintf(buf, sizeof buf, 351 "%ld", (long) mkt); 352 else (void) snprintf(buf, sizeof buf, 353 "%lu", (unsigned long) mkt); 354 pt = _add(buf, pt, ptlim); 355 } 356 continue; 357 case 'T': 358 pt = _fmt("%H:%M:%S", t, pt, ptlim, warnp); 359 continue; 360 case 't': 361 pt = _add("\t", pt, ptlim); 362 continue; 363 case 'U': 364 pt = _conv((t->tm_yday + DAYSPERWEEK - 365 t->tm_wday) / DAYSPERWEEK, 366 "%02d", pt, ptlim); 367 continue; 368 case 'u': 369 /* 370 ** From Arnold Robbins' strftime version 3.0: 371 ** "ISO 8601: Weekday as a decimal number 372 ** [1 (Monday) - 7]" 373 ** (ado, 1993-05-24) 374 */ 375 pt = _conv((t->tm_wday == 0) ? 376 DAYSPERWEEK : t->tm_wday, 377 "%d", pt, ptlim); 378 continue; 379 case 'V': /* ISO 8601 week number */ 380 case 'G': /* ISO 8601 year (four digits) */ 381 case 'g': /* ISO 8601 year (two digits) */ 382 /* 383 ** From Arnold Robbins' strftime version 3.0: "the week number of the 384 ** year (the first Monday as the first day of week 1) as a decimal number 385 ** (01-53)." 386 ** (ado, 1993-05-24) 387 ** 388 ** From "http://www.ft.uni-erlangen.de/~mskuhn/iso-time.html" by Markus Kuhn: 389 ** "Week 01 of a year is per definition the first week which has the 390 ** Thursday in this year, which is equivalent to the week which contains 391 ** the fourth day of January. In other words, the first week of a new year 392 ** is the week which has the majority of its days in the new year. Week 01 393 ** might also contain days from the previous year and the week before week 394 ** 01 of a year is the last week (52 or 53) of the previous year even if 395 ** it contains days from the new year. A week starts with Monday (day 1) 396 ** and ends with Sunday (day 7). For example, the first week of the year 397 ** 1997 lasts from 1996-12-30 to 1997-01-05..." 398 ** (ado, 1996-01-02) 399 */ 400 { 401 int year; 402 int yday; 403 int wday; 404 int w; 405 406 year = t->tm_year + TM_YEAR_BASE; 407 yday = t->tm_yday; 408 wday = t->tm_wday; 409 for ( ; ; ) { 410 int len; 411 int bot; 412 int top; 413 414 len = isleap(year) ? 415 DAYSPERLYEAR : 416 DAYSPERNYEAR; 417 /* 418 ** What yday (-3 ... 3) does 419 ** the ISO year begin on? 420 */ 421 bot = ((yday + 11 - wday) % 422 DAYSPERWEEK) - 3; 423 /* 424 ** What yday does the NEXT 425 ** ISO year begin on? 426 */ 427 top = bot - 428 (len % DAYSPERWEEK); 429 if (top < -3) 430 top += DAYSPERWEEK; 431 top += len; 432 if (yday >= top) { 433 ++year; 434 w = 1; 435 break; 436 } 437 if (yday >= bot) { 438 w = 1 + ((yday - bot) / 439 DAYSPERWEEK); 440 break; 441 } 442 --year; 443 yday += isleap(year) ? 444 DAYSPERLYEAR : 445 DAYSPERNYEAR; 446 } 447 #ifdef XPG4_1994_04_09 448 if ((w == 52 449 && t->tm_mon == TM_JANUARY) 450 || (w == 1 451 && t->tm_mon == TM_DECEMBER)) 452 w = 53; 453 #endif /* defined XPG4_1994_04_09 */ 454 if (*format == 'V') 455 pt = _conv(w, "%02d", 456 pt, ptlim); 457 else if (*format == 'g') { 458 *warnp = IN_ALL; 459 pt = _conv(year % 100, "%02d", 460 pt, ptlim); 461 } else pt = _conv(year, "%04d", 462 pt, ptlim); 463 } 464 continue; 465 case 'v': 466 /* 467 ** From Arnold Robbins' strftime version 3.0: 468 ** "date as dd-bbb-YYYY" 469 ** (ado, 1993-05-24) 470 */ 471 pt = _fmt("%e-%b-%Y", t, pt, ptlim, warnp); 472 continue; 473 case 'W': 474 pt = _conv((t->tm_yday + DAYSPERWEEK - 475 (t->tm_wday ? 476 (t->tm_wday - 1) : 477 (DAYSPERWEEK - 1))) / DAYSPERWEEK, 478 "%02d", pt, ptlim); 479 continue; 480 case 'w': 481 pt = _conv(t->tm_wday, "%d", pt, ptlim); 482 continue; 483 case 'X': 484 pt = _fmt(Locale->X_fmt, t, pt, ptlim, warnp); 485 continue; 486 case 'x': 487 { 488 int warn2 = IN_SOME; 489 490 pt = _fmt(Locale->x_fmt, t, pt, ptlim, &warn2); 491 if (warn2 == IN_ALL) 492 warn2 = IN_THIS; 493 if (warn2 > *warnp) 494 *warnp = warn2; 495 } 496 continue; 497 case 'y': 498 *warnp = IN_ALL; 499 pt = _conv((t->tm_year + TM_YEAR_BASE) % 100, 500 "%02d", pt, ptlim); 501 continue; 502 case 'Y': 503 pt = _conv(t->tm_year + TM_YEAR_BASE, "%04d", 504 pt, ptlim); 505 continue; 506 case 'Z': 507 #ifdef TM_ZONE 508 if (t->TM_ZONE != NULL) 509 pt = _add(t->TM_ZONE, pt, ptlim); 510 else 511 #endif /* defined TM_ZONE */ 512 if (t->tm_isdst >= 0) 513 pt = _add(tzname[t->tm_isdst != 0], 514 pt, ptlim); 515 /* 516 ** C99 says that %Z must be replaced by the 517 ** empty string if the time zone is not 518 ** determinable. 519 */ 520 continue; 521 case 'z': 522 { 523 int diff; 524 char const * sign; 525 526 if (t->tm_isdst < 0) 527 continue; 528 #ifdef TM_GMTOFF 529 diff = t->TM_GMTOFF; 530 #else /* !defined TM_GMTOFF */ 531 /* 532 ** C99 says that the UTC offset must 533 ** be computed by looking only at 534 ** tm_isdst. This requirement is 535 ** incorrect, since it means the code 536 ** must rely on magic (in this case 537 ** altzone and timezone), and the 538 ** magic might not have the correct 539 ** offset. Doing things correctly is 540 ** tricky and requires disobeying C99; 541 ** see GNU C strftime for details. 542 ** For now, punt and conform to the 543 ** standard, even though it's incorrect. 544 ** 545 ** C99 says that %z must be replaced by the 546 ** empty string if the time zone is not 547 ** determinable, so output nothing if the 548 ** appropriate variables are not available. 549 */ 550 if (t->tm_isdst == 0) 551 #ifdef USG_COMPAT 552 diff = -timezone; 553 #else /* !defined USG_COMPAT */ 554 continue; 555 #endif /* !defined USG_COMPAT */ 556 else 557 #ifdef ALTZONE 558 diff = -altzone; 559 #else /* !defined ALTZONE */ 560 continue; 561 #endif /* !defined ALTZONE */ 562 #endif /* !defined TM_GMTOFF */ 563 if (diff < 0) { 564 sign = "-"; 565 diff = -diff; 566 } else sign = "+"; 567 pt = _add(sign, pt, ptlim); 568 diff /= 60; 569 pt = _conv((diff/60)*100 + diff%60, 570 "%04d", pt, ptlim); 571 } 572 continue; 573 case '+': 574 pt = _fmt(Locale->date_fmt, t, pt, ptlim, 575 warnp); 576 continue; 577 case '%': 578 /* 579 ** X311J/88-090 (4.12.3.5): if conversion char is 580 ** undefined, behavior is undefined. Print out the 581 ** character itself as printf(3) also does. 582 */ 583 default: 584 break; 585 } 586 } 587 if (pt == ptlim) 588 break; 589 *pt++ = *format; 590 } 591 return pt; 592 } 593 594 static char * 595 _conv(n, format, pt, ptlim) 596 const int n; 597 const char * const format; 598 char * const pt; 599 const char * const ptlim; 600 { 601 char buf[INT_STRLEN_MAXIMUM(int) + 1]; 602 603 (void) snprintf(buf, sizeof buf, format, n); 604 return _add(buf, pt, ptlim); 605 } 606 607 static char * 608 _add(str, pt, ptlim) 609 const char * str; 610 char * pt; 611 const char * const ptlim; 612 { 613 while (pt < ptlim && (*pt = *str++) != '\0') 614 ++pt; 615 return pt; 616 } 617 618 #ifdef LOCALE_HOME 619 static struct lc_time_T * 620 _loc P((void)) 621 { 622 static const char locale_home[] = LOCALE_HOME; 623 static const char lc_time[] = "LC_TIME"; 624 static char * locale_buf; 625 626 int fd; 627 int oldsun; /* "...ain't got nothin' to do..." */ 628 char * lbuf; 629 char * nlbuf; 630 char * name; 631 char * p; 632 const char ** ap; 633 const char * plim; 634 char filename[FILENAME_MAX]; 635 struct stat st; 636 size_t namesize; 637 size_t bufsize; 638 639 /* 640 ** Use localebuf.mon[0] to signal whether locale is already set up. 641 */ 642 if (localebuf.mon[0]) 643 return &localebuf; 644 name = setlocale(LC_TIME, (char *) NULL); 645 if (name == NULL || *name == '\0') 646 goto no_locale; 647 /* 648 ** If the locale name is the same as our cache, use the cache. 649 */ 650 lbuf = locale_buf; 651 if (lbuf != NULL && strcmp(name, lbuf) == 0) { 652 p = lbuf; 653 for (ap = (const char **) &localebuf; 654 ap < (const char **) (&localebuf + 1); 655 ++ap) 656 *ap = p += strlen(p) + 1; 657 return &localebuf; 658 } 659 /* 660 ** Slurp the locale file into the cache. 661 */ 662 namesize = strlen(name) + 1; 663 if (sizeof filename < 664 ((sizeof locale_home) + namesize + (sizeof lc_time))) 665 goto no_locale; 666 oldsun = 0; 667 (void) snprintf(filename, sizeof filename, "%s/%s/%s", locale_home, 668 name, lc_time); 669 fd = open(filename, O_RDONLY); 670 if (fd < 0) { 671 /* 672 ** Old Sun systems have a different naming and data convention. 673 */ 674 oldsun = 1; 675 (void) snprintf(filename, sizeof filename, "%s/%s/%s", 676 locale_home, lc_time, name); 677 fd = open(filename, O_RDONLY); 678 if (fd < 0) 679 goto no_locale; 680 } 681 if (fstat(fd, &st) != 0) 682 goto bad_locale; 683 if (st.st_size <= 0) 684 goto bad_locale; 685 bufsize = namesize + st.st_size; 686 locale_buf = NULL; 687 nlbuf = (lbuf == NULL) ? malloc(bufsize) : realloc(lbuf, bufsize); 688 if (nlbuf == NULL) { 689 if (lbuf) 690 free(lbuf); 691 lbuf = NULL; 692 goto bad_locale; 693 } 694 lbuf = nlbuf; 695 (void) strcpy(lbuf, name); 696 p = lbuf + namesize; 697 plim = p + st.st_size; 698 if (read(fd, p, (size_t) st.st_size) != st.st_size) 699 goto bad_lbuf; 700 if (close(fd) != 0) 701 goto bad_lbuf; 702 /* 703 ** Parse the locale file into localebuf. 704 */ 705 if (plim[-1] != '\n') 706 goto bad_lbuf; 707 for (ap = (const char **) &localebuf; 708 ap < (const char **) (&localebuf + 1); 709 ++ap) { 710 if (p == plim) 711 goto bad_lbuf; 712 *ap = p; 713 while (*p != '\n') 714 ++p; 715 *p++ = '\0'; 716 } 717 if (oldsun) { 718 /* 719 ** SunOS 4 used an obsolescent format; see localdtconv(3). 720 ** c_fmt had the ``short format for dates and times together'' 721 ** (SunOS 4 date, "%a %b %e %T %Z %Y" in the C locale); 722 ** date_fmt had the ``long format for dates'' 723 ** (SunOS 4 strftime %C, "%A, %B %e, %Y" in the C locale). 724 ** Discard the latter in favor of the former. 725 */ 726 localebuf.date_fmt = localebuf.c_fmt; 727 } 728 /* 729 ** Record the successful parse in the cache. 730 */ 731 locale_buf = lbuf; 732 733 return &localebuf; 734 735 bad_lbuf: 736 free(lbuf); 737 bad_locale: 738 (void) close(fd); 739 no_locale: 740 localebuf = C_time_locale; 741 locale_buf = NULL; 742 return &localebuf; 743 } 744 #endif /* defined LOCALE_HOME */ 745