1 %{ 2 /* 3 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 4 * Use is subject to license terms. 5 */ 6 #pragma ident "%Z%%M% %I% %E% SMI" 7 8 /* $OrigRevision: 2.1 $ 9 ** 10 ** Originally written by Steven M. Bellovin <smb@research.att.com> while 11 ** at the University of North Carolina at Chapel Hill. Later tweaked by 12 ** a couple of people on Usenet. Completely overhauled by Rich $alz 13 ** <rsalz@bbn.com> and Jim Berets <jberets@bbn.com> in August, 1990; 14 ** send any email to Rich. 15 ** 16 ** This grammar has eight shift/reduce conflicts. 17 ** 18 ** This code is in the public domain and has no copyright. 19 */ 20 /* SUPPRESS 287 on yaccpar_sccsid *//* Unusd static variable */ 21 /* SUPPRESS 288 on yyerrlab *//* Label unused */ 22 #include <stdio.h> 23 #include <ctype.h> 24 25 #include <sys/types.h> 26 #define NEED_TZSET 27 struct timeb { 28 time_t time; /* Seconds since the epoch */ 29 unsigned short millitm; /* Field not used */ 30 short timezone; 31 short dstflag; /* Field not used */ 32 }; 33 #include <time.h> 34 35 #include <locale.h> 36 #include <string.h> 37 #include <stdlib.h> 38 #include <note.h> 39 #include <libintl.h> 40 41 #if !defined(lint) && !defined(SABER) 42 static char RCS[] = 43 "$Header: /home/laramie/berliner/ws/backup/usr/src/cmd/backup/lib/getdate.y,v 1.5 1992/06/09 21:46:21 sam Exp $"; 44 #endif /* !defined(lint) && !defined(SABER) */ 45 46 47 #define EPOCH 1970 48 #define HOURN(x) (x * 60) 49 #define SECSPERDAY (24L * 60L * 60L) 50 51 #define CHECK_TM(y) (((y) % 100) < 70 ? (y) + 2000 : (y) + 1900) 52 53 /* 54 ** An entry in the lexical lookup table. 55 */ 56 typedef struct _TABLE { 57 char *name; 58 int type; 59 time_t value; 60 } TABLE; 61 62 63 /* 64 ** Daylight-savings mode: on, off, or not yet known. 65 */ 66 typedef enum _DSTMODE { 67 DSTon, DSToff, DSTmaybe 68 } DSTMODE; 69 70 /* 71 ** Meridian: am, pm, or 24-hour style. 72 */ 73 typedef enum _MERIDIAN { 74 MERam, MERpm, MER24 75 } MERIDIAN; 76 77 78 /* 79 ** Global variables. We could get rid of most of these by using a good 80 ** union as the yacc stack. (This routine was originally written before 81 ** yacc had the %union construct.) Maybe someday; right now we only use 82 ** the %union very rarely. 83 */ 84 static char *yyInput; 85 static DSTMODE yyDSTmode; 86 static time_t yyDayOrdinal; 87 static time_t yyDayNumber; 88 static int yyHaveDate; 89 static int yyHaveDay; 90 static int yyHaveRel; 91 static int yyHaveTime; 92 static int yyHaveZone; 93 static time_t yyTimezone; 94 static time_t yyDay; 95 static time_t yyHour; 96 static time_t yyMinutes; 97 static time_t yyMonth; 98 static time_t yySeconds; 99 static time_t yyYear; 100 static MERIDIAN yyMeridian; 101 static time_t yyRelMonth; 102 static time_t yyRelSeconds; 103 104 static char *domainname = "hsm_libdump"; /* for dgettext() */ 105 106 #define yylex 1 /* suppress yacc's definition */ 107 %} 108 109 %union { 110 time_t Number; 111 enum _MERIDIAN Meridian; 112 } 113 114 %token tAGO tDAY tDAYZONE tID tMERIDIAN tMINUTE_UNIT tMONTH tMONTH_UNIT 115 %token tSEC_UNIT tSNUMBER tUNUMBER tZONE 116 117 %type <Number> tDAY tDAYZONE tMINUTE_UNIT tMONTH tMONTH_UNIT 118 %type <Number> tSEC_UNIT tSNUMBER tUNUMBER tZONE 119 %type <Meridian> tMERIDIAN o_merid 120 121 %% 122 123 spec : /* NULL */ 124 | spec item 125 ; 126 127 item : time { 128 yyHaveTime++; 129 } 130 | zone { 131 yyHaveZone++; 132 } 133 | date { 134 yyHaveDate++; 135 } 136 | day { 137 yyHaveDay++; 138 } 139 | rel { 140 yyHaveRel++; 141 } 142 | number 143 ; 144 145 time : tUNUMBER tMERIDIAN { 146 yyHour = $1; 147 yyMinutes = 0; 148 yySeconds = 0; 149 yyMeridian = $2; 150 } 151 | tUNUMBER ':' tUNUMBER o_merid { 152 yyHour = $1; 153 yyMinutes = $3; 154 yySeconds = 0; 155 yyMeridian = $4; 156 } 157 | tUNUMBER ':' tUNUMBER tSNUMBER { 158 yyHour = $1; 159 yyMinutes = $3; 160 yyMeridian = MER24; 161 yyDSTmode = DSToff; 162 yyTimezone = - ($4 % 100 + ($4 / 100) * 60); 163 } 164 | tUNUMBER ':' tUNUMBER ':' tUNUMBER o_merid { 165 yyHour = $1; 166 yyMinutes = $3; 167 yySeconds = $5; 168 yyMeridian = $6; 169 } 170 | tUNUMBER ':' tUNUMBER ':' tUNUMBER tSNUMBER { 171 yyHour = $1; 172 yyMinutes = $3; 173 yySeconds = $5; 174 yyMeridian = MER24; 175 yyDSTmode = DSToff; 176 yyTimezone = - ($6 % 100 + ($6 / 100) * 60); 177 } 178 ; 179 180 zone : tZONE { 181 yyTimezone = $1; 182 yyDSTmode = DSToff; 183 } 184 | tDAYZONE { 185 yyTimezone = $1; 186 yyDSTmode = DSTon; 187 } 188 ; 189 190 day : tDAY { 191 yyDayOrdinal = 1; 192 yyDayNumber = $1; 193 } 194 | tDAY ',' { 195 yyDayOrdinal = 1; 196 yyDayNumber = $1; 197 } 198 | tUNUMBER tDAY { 199 yyDayOrdinal = $1; 200 yyDayNumber = $2; 201 } 202 ; 203 204 date : tUNUMBER '/' tUNUMBER { 205 yyMonth = $1; 206 yyDay = $3; 207 } 208 | tUNUMBER '/' tUNUMBER '/' tUNUMBER { 209 yyMonth = $1; 210 yyDay = $3; 211 yyYear = $5; 212 } 213 | tMONTH tUNUMBER { 214 yyMonth = $1; 215 yyDay = $2; 216 } 217 | tMONTH tUNUMBER ',' tUNUMBER { 218 yyMonth = $1; 219 yyDay = $2; 220 yyYear = $4; 221 } 222 | tUNUMBER tMONTH { 223 yyMonth = $2; 224 yyDay = $1; 225 } 226 | tUNUMBER tMONTH tUNUMBER { 227 yyMonth = $2; 228 yyDay = $1; 229 yyYear = $3; 230 } 231 ; 232 233 rel : relunit tAGO { 234 yyRelSeconds = -yyRelSeconds; 235 yyRelMonth = -yyRelMonth; 236 } 237 | relunit 238 ; 239 240 relunit : tUNUMBER tMINUTE_UNIT { 241 yyRelSeconds += $1 * $2 * 60L; 242 } 243 | tSNUMBER tMINUTE_UNIT { 244 yyRelSeconds += $1 * $2 * 60L; 245 } 246 | tMINUTE_UNIT { 247 yyRelSeconds += $1 * 60L; 248 } 249 | tSNUMBER tSEC_UNIT { 250 yyRelSeconds += $1; 251 } 252 | tUNUMBER tSEC_UNIT { 253 yyRelSeconds += $1; 254 } 255 | tSEC_UNIT { 256 yyRelSeconds++; 257 } 258 | tSNUMBER tMONTH_UNIT { 259 yyRelMonth += $1 * $2; 260 } 261 | tUNUMBER tMONTH_UNIT { 262 yyRelMonth += $1 * $2; 263 } 264 | tMONTH_UNIT { 265 yyRelMonth += $1; 266 } 267 ; 268 269 number : tUNUMBER { 270 if (yyHaveTime && yyHaveDate && !yyHaveRel) 271 yyYear = $1; 272 else { 273 yyHaveTime++; 274 if ($1 < 100) { 275 yyHour = $1; 276 yyMinutes = 0; 277 } 278 else { 279 yyHour = $1 / 100; 280 yyMinutes = $1 % 100; 281 } 282 yySeconds = 0; 283 yyMeridian = MER24; 284 } 285 } 286 ; 287 288 o_merid : /* NULL */ { 289 $$ = MER24; 290 } 291 | tMERIDIAN { 292 $$ = $1; 293 } 294 ; 295 296 %% 297 298 /* Month and day table. */ 299 static TABLE MonthDayTable[] = { 300 { "january", tMONTH, 1 }, 301 { "february", tMONTH, 2 }, 302 { "march", tMONTH, 3 }, 303 { "april", tMONTH, 4 }, 304 { "may", tMONTH, 5 }, 305 { "june", tMONTH, 6 }, 306 { "july", tMONTH, 7 }, 307 { "august", tMONTH, 8 }, 308 { "september", tMONTH, 9 }, 309 { "sept", tMONTH, 9 }, 310 { "october", tMONTH, 10 }, 311 { "november", tMONTH, 11 }, 312 { "december", tMONTH, 12 }, 313 { "sunday", tDAY, 0 }, 314 { "monday", tDAY, 1 }, 315 { "tuesday", tDAY, 2 }, 316 { "tues", tDAY, 2 }, 317 { "wednesday", tDAY, 3 }, 318 { "wednes", tDAY, 3 }, 319 { "thursday", tDAY, 4 }, 320 { "thur", tDAY, 4 }, 321 { "thurs", tDAY, 4 }, 322 { "friday", tDAY, 5 }, 323 { "saturday", tDAY, 6 }, 324 { NULL } 325 }; 326 327 /* Time units table. */ 328 static TABLE UnitsTable[] = { 329 { "year", tMONTH_UNIT, 12 }, 330 { "month", tMONTH_UNIT, 1 }, 331 { "fortnight", tMINUTE_UNIT, 14 * 24 * 60 }, 332 { "week", tMINUTE_UNIT, 7 * 24 * 60 }, 333 { "day", tMINUTE_UNIT, 1 * 24 * 60 }, 334 { "hour", tMINUTE_UNIT, 60 }, 335 { "minute", tMINUTE_UNIT, 1 }, 336 { "min", tMINUTE_UNIT, 1 }, 337 { "second", tSEC_UNIT, 1 }, 338 { "sec", tSEC_UNIT, 1 }, 339 { NULL } 340 }; 341 342 /* Assorted relative-time words. */ 343 static TABLE OtherTable[] = { 344 { "tomorrow", tMINUTE_UNIT, 1 * 24 * 60 }, 345 { "yesterday", tMINUTE_UNIT, -1 * 24 * 60 }, 346 { "today", tMINUTE_UNIT, 0 }, 347 { "now", tMINUTE_UNIT, 0 }, 348 { "last", tUNUMBER, -1 }, 349 { "this", tMINUTE_UNIT, 0 }, 350 { "next", tUNUMBER, 2 }, 351 { "first", tUNUMBER, 1 }, 352 /* { "second", tUNUMBER, 2 }, */ 353 { "third", tUNUMBER, 3 }, 354 { "fourth", tUNUMBER, 4 }, 355 { "fifth", tUNUMBER, 5 }, 356 { "sixth", tUNUMBER, 6 }, 357 { "seventh", tUNUMBER, 7 }, 358 { "eighth", tUNUMBER, 8 }, 359 { "ninth", tUNUMBER, 9 }, 360 { "tenth", tUNUMBER, 10 }, 361 { "eleventh", tUNUMBER, 11 }, 362 { "twelfth", tUNUMBER, 12 }, 363 { "ago", tAGO, 1 }, 364 { NULL } 365 }; 366 367 /* The timezone table. */ 368 static TABLE TimezoneTable[] = { 369 { "gmt", tZONE, HOURN( 0) }, /* Greenwich Mean */ 370 { "ut", tZONE, HOURN( 0) }, /* Universal (Coordinated) */ 371 { "utc", tZONE, HOURN( 0) }, 372 { "wet", tZONE, HOURN( 0) }, /* Western European */ 373 { "bst", tDAYZONE, HOURN( 0) }, /* British Summer */ 374 { "wat", tZONE, HOURN( 1) }, /* West Africa */ 375 { "at", tZONE, HOURN( 2) }, /* Azores */ 376 #if 0 377 /* For completeness. BST is also British Summer, and GST is 378 * also Guam Standard. */ 379 { "bst", tZONE, HOURN( 3) }, /* Brazil Standard */ 380 { "gst", tZONE, HOURN( 3) }, /* Greenland Standard */ 381 #endif 382 { "nft", tZONE, HOURN(3.5) }, /* Newfoundland */ 383 { "nst", tZONE, HOURN(3.5) }, /* Newfoundland Standard */ 384 { "ndt", tDAYZONE, HOURN(3.5) }, /* Newfoundland Daylight */ 385 { "ast", tZONE, HOURN( 4) }, /* Atlantic Standard */ 386 { "adt", tDAYZONE, HOURN( 4) }, /* Atlantic Daylight */ 387 { "est", tZONE, HOURN( 5) }, /* Eastern Standard */ 388 { "edt", tDAYZONE, HOURN( 5) }, /* Eastern Daylight */ 389 { "cst", tZONE, HOURN( 6) }, /* Central Standard */ 390 { "cdt", tDAYZONE, HOURN( 6) }, /* Central Daylight */ 391 { "mst", tZONE, HOURN( 7) }, /* Mountain Standard */ 392 { "mdt", tDAYZONE, HOURN( 7) }, /* Mountain Daylight */ 393 { "pst", tZONE, HOURN( 8) }, /* Pacific Standard */ 394 { "pdt", tDAYZONE, HOURN( 8) }, /* Pacific Daylight */ 395 { "yst", tZONE, HOURN( 9) }, /* Yukon Standard */ 396 { "ydt", tDAYZONE, HOURN( 9) }, /* Yukon Daylight */ 397 { "hst", tZONE, HOURN(10) }, /* Hawaii Standard */ 398 { "hdt", tDAYZONE, HOURN(10) }, /* Hawaii Daylight */ 399 { "cat", tZONE, HOURN(10) }, /* Central Alaska */ 400 { "ahst", tZONE, HOURN(10) }, /* Alaska-Hawaii Standard */ 401 { "nt", tZONE, HOURN(11) }, /* Nome */ 402 { "idlw", tZONE, HOURN(12) }, /* International Date Line West */ 403 { "cet", tZONE, -HOURN(1) }, /* Central European */ 404 { "met", tZONE, -HOURN(1) }, /* Middle European */ 405 { "mewt", tZONE, -HOURN(1) }, /* Middle European Winter */ 406 { "mest", tDAYZONE, -HOURN(1) }, /* Middle European Summer */ 407 { "swt", tZONE, -HOURN(1) }, /* Swedish Winter */ 408 { "sst", tDAYZONE, -HOURN(1) }, /* Swedish Summer */ 409 { "fwt", tZONE, -HOURN(1) }, /* French Winter */ 410 { "fst", tDAYZONE, -HOURN(1) }, /* French Summer */ 411 { "eet", tZONE, -HOURN(2) }, /* Eastern Europe, USSR Zone 1 */ 412 { "bt", tZONE, -HOURN(3) }, /* Baghdad, USSR Zone 2 */ 413 { "it", tZONE, -HOURN(3.5) },/* Iran */ 414 { "zp4", tZONE, -HOURN(4) }, /* USSR Zone 3 */ 415 { "zp5", tZONE, -HOURN(5) }, /* USSR Zone 4 */ 416 { "ist", tZONE, -HOURN(5.5) },/* Indian Standard */ 417 { "zp6", tZONE, -HOURN(6) }, /* USSR Zone 5 */ 418 #if 0 419 /* For completeness. NST is also Newfoundland Stanard, nad SST is 420 * also Swedish Summer. */ 421 { "nst", tZONE, -HOURN(6.5) },/* North Sumatra */ 422 { "sst", tZONE, -HOURN(7) }, /* South Sumatra, USSR Zone 6 */ 423 #endif /* 0 */ 424 { "wast", tZONE, -HOURN(7) }, /* West Australian Standard */ 425 { "wadt", tDAYZONE, -HOURN(7) }, /* West Australian Daylight */ 426 { "jt", tZONE, -HOURN(7.5) },/* Java (3pm in Cronusland!) */ 427 { "cct", tZONE, -HOURN(8) }, /* China Coast, USSR Zone 7 */ 428 { "jst", tZONE, -HOURN(9) }, /* Japan Standard, USSR Zone 8 */ 429 { "cast", tZONE, -HOURN(9.5) },/* Central Australian Standard */ 430 { "cadt", tDAYZONE, -HOURN(9.5) },/* Central Australian Daylight */ 431 { "east", tZONE, -HOURN(10) }, /* Eastern Australian Standard */ 432 { "eadt", tDAYZONE, -HOURN(10) }, /* Eastern Australian Daylight */ 433 { "gst", tZONE, -HOURN(10) }, /* Guam Standard, USSR Zone 9 */ 434 { "nzt", tZONE, -HOURN(12) }, /* New Zealand */ 435 { "nzst", tZONE, -HOURN(12) }, /* New Zealand Standard */ 436 { "nzdt", tDAYZONE, -HOURN(12) }, /* New Zealand Daylight */ 437 { "idle", tZONE, -HOURN(12) }, /* International Date Line East */ 438 { NULL } 439 }; 440 441 /* Military timezone table. */ 442 static TABLE MilitaryTable[] = { 443 { "a", tZONE, HOURN( 1) }, 444 { "b", tZONE, HOURN( 2) }, 445 { "c", tZONE, HOURN( 3) }, 446 { "d", tZONE, HOURN( 4) }, 447 { "e", tZONE, HOURN( 5) }, 448 { "f", tZONE, HOURN( 6) }, 449 { "g", tZONE, HOURN( 7) }, 450 { "h", tZONE, HOURN( 8) }, 451 { "i", tZONE, HOURN( 9) }, 452 { "k", tZONE, HOURN( 10) }, 453 { "l", tZONE, HOURN( 11) }, 454 { "m", tZONE, HOURN( 12) }, 455 { "n", tZONE, HOURN(- 1) }, 456 { "o", tZONE, HOURN(- 2) }, 457 { "p", tZONE, HOURN(- 3) }, 458 { "q", tZONE, HOURN(- 4) }, 459 { "r", tZONE, HOURN(- 5) }, 460 { "s", tZONE, HOURN(- 6) }, 461 { "t", tZONE, HOURN(- 7) }, 462 { "u", tZONE, HOURN(- 8) }, 463 { "v", tZONE, HOURN(- 9) }, 464 { "w", tZONE, HOURN(-10) }, 465 { "x", tZONE, HOURN(-11) }, 466 { "y", tZONE, HOURN(-12) }, 467 { "z", tZONE, HOURN( 0) }, 468 { NULL } 469 }; 470 471 472 473 474 /* ARGSUSED */ 475 static void 476 yyerror(s) 477 char *s; 478 { 479 } 480 481 482 static time_t 483 ToSeconds(Hours, Minutes, Seconds, Meridian) 484 time_t Hours; 485 time_t Minutes; 486 time_t Seconds; 487 MERIDIAN Meridian; 488 { 489 if (Minutes < 0 || Minutes > 59 || Seconds < 0 || Seconds > 59) 490 return -1; 491 switch (Meridian) { 492 case MER24: 493 if (Hours < 0 || Hours > 23) 494 return -1; 495 return (Hours * 60L + Minutes) * 60L + Seconds; 496 case MERam: 497 if (Hours < 1 || Hours > 12) 498 return -1; 499 if (Hours != 12) 500 return (Hours * 60L + Minutes) * 60L + Seconds; 501 else 502 return Minutes * 60L + Seconds; 503 case MERpm: 504 if (Hours < 1 || Hours > 12) 505 return -1; 506 if (Hours != 12) 507 return ((Hours + 12) * 60L + Minutes) * 60L + Seconds; 508 else 509 return (720L + Minutes) * 60L + Seconds; 510 } 511 /* NOTREACHED */ 512 return (-1); 513 } 514 515 516 static time_t 517 Convert(Month, Day, Year, Hours, Minutes, Seconds, Meridian, DSTmode) 518 time_t Month; 519 time_t Day; 520 time_t Year; 521 time_t Hours; 522 time_t Minutes; 523 time_t Seconds; 524 MERIDIAN Meridian; 525 DSTMODE DSTmode; 526 { 527 static int DaysInMonth[12] = { 528 31, 0, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 529 }; 530 time_t tod; 531 time_t Julian; 532 time_t i; 533 534 if (Year < 0) 535 Year = -Year; 536 if (Year < 138) 537 Year += 1900; 538 DaysInMonth[1] = Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0) 539 ? 29 : 28; 540 if (Year < EPOCH || Year > 2037 541 || Month < 1 || Month > 12 542 /* LINTED Month is a time_t so intermediate results aren't truncated */ 543 || Day < 1 || Day > DaysInMonth[(int)--Month]) 544 return -1; 545 546 for (Julian = Day - 1, i = 0; i < Month; i++) 547 Julian += DaysInMonth[i]; 548 for (i = EPOCH; i < Year; i++) 549 Julian += 365 + (i % 4 == 0); 550 Julian *= SECSPERDAY; 551 Julian += yyTimezone * 60L; 552 if ((tod = ToSeconds(Hours, Minutes, Seconds, Meridian)) < 0) 553 return -1; 554 Julian += tod; 555 if (DSTmode == DSTon 556 || (DSTmode == DSTmaybe && localtime(&Julian)->tm_isdst)) 557 Julian -= 60 * 60; 558 return Julian; 559 } 560 561 562 static time_t 563 DSTcorrect(Start, Future) 564 time_t Start; 565 time_t Future; 566 { 567 time_t StartDay; 568 time_t FutureDay; 569 570 StartDay = (localtime(&Start)->tm_hour + 1) % 24; 571 FutureDay = (localtime(&Future)->tm_hour + 1) % 24; 572 return (Future - Start) + (StartDay - FutureDay) * 60L * 60L; 573 } 574 575 576 static time_t 577 RelativeDate(Start, DayOrdinal, DayNumber) 578 time_t Start; 579 time_t DayOrdinal; 580 time_t DayNumber; 581 { 582 struct tm *tm; 583 time_t now; 584 585 now = Start; 586 tm = localtime(&now); 587 now += SECSPERDAY * ((DayNumber - tm->tm_wday + 7) % 7); 588 now += 7 * SECSPERDAY * (DayOrdinal <= 0 ? DayOrdinal : DayOrdinal - 1); 589 return DSTcorrect(Start, now); 590 } 591 592 593 static time_t 594 RelativeMonth(Start, RelMonth) 595 time_t Start; 596 time_t RelMonth; 597 { 598 struct tm *tm; 599 time_t Month; 600 time_t Year; 601 602 if (RelMonth == 0) 603 return 0; 604 tm = localtime(&Start); 605 Month = 12 * tm->tm_year + tm->tm_mon + RelMonth; 606 Year = Month / 12; 607 Month = Month % 12 + 1; 608 return DSTcorrect(Start, 609 Convert(Month, (time_t)tm->tm_mday, Year, 610 (time_t)tm->tm_hour, (time_t)tm->tm_min, (time_t)tm->tm_sec, 611 MER24, DSTmaybe)); 612 } 613 614 615 static int 616 LookupWord(buff) 617 char *buff; 618 { 619 char *p; 620 char *q; 621 TABLE *tp; 622 uint_t i; 623 int abbrev; 624 625 /* Make it lowercase. */ 626 for (p = buff; *p; p++) 627 if (isupper((u_char)*p)) 628 *p = tolower(*p); 629 630 if (strcmp(buff, "am") == 0 || strcmp(buff, "a.m.") == 0) { 631 yylval.Meridian = MERam; 632 return tMERIDIAN; 633 } 634 if (strcmp(buff, "pm") == 0 || strcmp(buff, "p.m.") == 0) { 635 yylval.Meridian = MERpm; 636 return tMERIDIAN; 637 } 638 639 /* See if we have an abbreviation for a month. */ 640 if (strlen(buff) == 3) 641 abbrev = 1; 642 else if (strlen(buff) == 4 && buff[3] == '.') { 643 abbrev = 1; 644 buff[3] = '\0'; 645 } 646 else 647 abbrev = 0; 648 649 for (tp = MonthDayTable; tp->name; tp++) { 650 if (abbrev) { 651 if (strncmp(buff, tp->name, 3) == 0) { 652 yylval.Number = tp->value; 653 return tp->type; 654 } 655 } 656 else if (strcmp(buff, tp->name) == 0) { 657 yylval.Number = tp->value; 658 return tp->type; 659 } 660 } 661 662 for (tp = TimezoneTable; tp->name; tp++) 663 if (strcmp(buff, tp->name) == 0) { 664 yylval.Number = tp->value; 665 return tp->type; 666 } 667 668 for (tp = UnitsTable; tp->name; tp++) 669 if (strcmp(buff, tp->name) == 0) { 670 yylval.Number = tp->value; 671 return tp->type; 672 } 673 674 /* Strip off any plural and try the units table again. */ 675 i = strlen(buff) - 1; 676 if (buff[i] == 's') { 677 buff[i] = '\0'; 678 for (tp = UnitsTable; tp->name; tp++) 679 if (strcmp(buff, tp->name) == 0) { 680 yylval.Number = tp->value; 681 return tp->type; 682 } 683 } 684 685 for (tp = OtherTable; tp->name; tp++) 686 if (strcmp(buff, tp->name) == 0) { 687 yylval.Number = tp->value; 688 return tp->type; 689 } 690 691 /* Military timezones. */ 692 if (buff[1] == '\0' && isalpha((u_char)*buff)) { 693 for (tp = MilitaryTable; tp->name; tp++) 694 if (strcmp(buff, tp->name) == 0) { 695 yylval.Number = tp->value; 696 return tp->type; 697 } 698 } 699 700 /* Drop out any periods and try the timezone table again. */ 701 for (i = 0, p = q = buff; *q; q++) 702 if (*q != '.') 703 *p++ = *q; 704 else 705 i++; 706 *p = '\0'; 707 if (i) 708 for (tp = TimezoneTable; tp->name; tp++) 709 if (strcmp(buff, tp->name) == 0) { 710 yylval.Number = tp->value; 711 return tp->type; 712 } 713 714 return tID; 715 } 716 717 void 718 pdateerr(p) 719 char *p; 720 { 721 char *name = "DATEMSK"; /* env variable for date format */ 722 char *value; 723 char fmt[256], line[256]; 724 FILE *fp; 725 time_t now; 726 struct tm *tm; 727 728 value = getenv(name); 729 if (value == (char *)0) { 730 fprintf(stderr, 731 dgettext(domainname, "%s: Environment variable %s not set\n"), 732 p, name); 733 return; 734 } 735 switch (getdate_err) { 736 case 0: 737 default: 738 fprintf(stderr, 739 dgettext(domainname, "%s: Unkown getdate() error\n"), p); 740 break; 741 case 1: 742 fprintf(stderr, 743 dgettext(domainname, "%s: %s null or undefined\n"), p, name); 744 break; 745 case 2: 746 fprintf(stderr, dgettext(domainname, 747 "%s: Cannot read template file %s\n"), p, value); 748 break; 749 case 3: 750 fprintf(stderr, dgettext(domainname, 751 "%s: Failed to get file status information\n"), p); 752 break; 753 case 4: 754 fprintf(stderr, dgettext(domainname, 755 "%s: Template file %s not a regular file\n"), p, value); 756 break; 757 case 5: 758 fprintf(stderr, dgettext(domainname, 759 "%s: Error reading template file %s\n"), p, value); 760 break; 761 case 6: 762 fprintf(stderr, dgettext(domainname, 763 "%s: %s failed\n"), p, "malloc()"); 764 break; 765 case 7: 766 fprintf(stderr, dgettext(domainname, 767 "%s: Bad date/time format\n"), p); 768 fp = fopen(value, "r"); 769 if (fp == (FILE *)0) 770 break; 771 now = time((time_t *)0); 772 tm = localtime(&now); 773 fprintf(stderr, dgettext(domainname, 774 "The following are examples of valid formats:\n")); 775 while (fgets(fmt, sizeof (fmt), fp)) { 776 if (strchr(fmt, '%') == (char *)0) 777 continue; 778 fprintf(stderr, " "); 779 (void) strftime(line, sizeof (line), fmt, tm); 780 fprintf(stderr, "%s", line); 781 } 782 (void) fclose(fp); 783 break; 784 case 8: 785 (void) fprintf(stderr, dgettext(domainname, 786 "%s: Invalid date specification\n"), p); 787 break; 788 } 789 } 790 791 #undef yylex 792 static int 793 yylex() 794 { 795 char c; 796 char *p; 797 char buff[20]; 798 int Count; 799 int sign; 800 801 for ( ; ; ) { 802 while (isspace((u_char)*yyInput)) 803 yyInput++; 804 805 if (isdigit((u_char)(c = *yyInput)) || c == '-' || c == '+') { 806 if (c == '-' || c == '+') { 807 sign = c == '-' ? -1 : 1; 808 if (!isdigit((u_char)*++yyInput)) 809 /* skip the '-' sign */ 810 continue; 811 } 812 else 813 sign = 0; 814 yylval.Number = 0; 815 while (isdigit((u_char)(c = *yyInput++))) { 816 int n; 817 char digit = c; 818 (void) sscanf(&digit, "%1d", &n); 819 yylval.Number = 10 * yylval.Number + n; 820 } 821 yyInput--; 822 if (sign < 0) 823 yylval.Number = -yylval.Number; 824 return sign ? tSNUMBER : tUNUMBER; 825 } 826 if (isalpha((u_char)c)) { 827 for (p = buff; isalpha((u_char)(c = *yyInput++)) || c == '.'; ) 828 if (p < &buff[sizeof (buff) - 1]) 829 *p++ = c; 830 *p = '\0'; 831 yyInput--; 832 return LookupWord(buff); 833 } 834 if (c != '(') 835 return *yyInput++; 836 Count = 0; 837 do { 838 c = *yyInput++; 839 if (c == '\0') 840 return c; 841 if (c == '(') 842 Count++; 843 else if (c == ')') 844 Count--; 845 } while (Count > 0); 846 } 847 } 848 849 850 time_t 851 getreldate(p, now) 852 char *p; 853 struct timeb *now; 854 { 855 struct tm *tm; 856 struct timeb ftz; 857 time_t Start; 858 time_t tod; 859 860 if (strcmp(setlocale(LC_TIME, NULL), "C")) { 861 static char localedate[24]; 862 struct tm ltm; 863 864 tm = getdate(p); 865 if (getdate_err == 1 /* NODATEMASK */) { 866 char buffy[BUFSIZ]; 867 time_t current; 868 869 printf(gettext("environment variable %s not set\n"), "DATEMSK"); 870 do { 871 time(¤t); 872 tm = localtime(¤t); 873 memcpy(<m, tm, sizeof(ltm)); 874 tm = <m; 875 876 (void) fputs(gettext("Enter date as mmddhhmm[yy]: "), stdout); 877 (void) fflush(stdout); 878 if (fgets(buffy, sizeof (buffy), stdin) == NULL) { 879 (void) printf(gettext("Encountered EOF on stdin\n")); 880 return(-1); 881 } 882 } while (sscanf(buffy, "%2d%2d%2d%2d%2d", 883 &(tm->tm_mon), &(tm->tm_mday), &(tm->tm_hour), 884 &(tm->tm_min), &(tm->tm_year)) < 4); 885 886 (tm->tm_mon)--; 887 } else if (tm == NULL) 888 return(-1); 889 890 (void)sprintf(localedate, "%d:%2.2d %d/%d %d", 891 tm->tm_hour, tm->tm_min, tm->tm_mon + 1, 892 tm->tm_mday, CHECK_TM(tm->tm_year)); 893 p = localedate; 894 } 895 896 yyInput = p; 897 if (now == NULL) { 898 now = &ftz; 899 (void) time(&ftz.time); 900 /* Set the timezone global. */ 901 tzset(); 902 /* LINTED timezone is time_t so intermediate results aren't truncated */ 903 ftz.timezone = (int) timezone / 60; 904 } 905 906 tm = localtime(&now->time); 907 yyYear = tm->tm_year; 908 yyMonth = tm->tm_mon + 1; 909 yyDay = tm->tm_mday; 910 yyTimezone = now->timezone; 911 yyDSTmode = DSTmaybe; 912 yyHour = tm->tm_hour; 913 yyMinutes = tm->tm_min; 914 yySeconds = tm->tm_sec; 915 yyMeridian = MER24; 916 yyRelSeconds = 0; 917 yyRelMonth = 0; 918 yyHaveDate = 0; 919 yyHaveDay = 0; 920 yyHaveRel = 0; 921 yyHaveTime = 0; 922 yyHaveZone = 0; 923 924 if (yyparse() 925 || yyHaveTime > 1 || yyHaveZone > 1 || yyHaveDate > 1 || yyHaveDay > 1) 926 return -1; 927 928 if (yyHaveDate || yyHaveTime || yyHaveDay) { 929 Start = Convert(yyMonth, yyDay, yyYear, yyHour, yyMinutes, yySeconds, 930 yyMeridian, yyDSTmode); 931 if (Start < 0) 932 return -1; 933 } 934 else { 935 Start = now->time; 936 if (!yyHaveRel) 937 Start -= ((tm->tm_hour * 60L) + tm->tm_min * 60L) + tm->tm_sec; 938 } 939 940 Start += yyRelSeconds; 941 Start += RelativeMonth(Start, yyRelMonth); 942 943 if (yyHaveDay && !yyHaveDate) { 944 tod = RelativeDate(Start, yyDayOrdinal, yyDayNumber); 945 Start += tod; 946 } 947 948 /* Have to do *something* with a legitimate -1 so it's distinguishable 949 * from the error return value. (Alternately could set errno on error.) */ 950 return Start == -1 ? 0 : Start; 951 } 952 953 #if defined(TEST) 954 955 /* ARGSUSED */ 956 main(ac, av) 957 int ac; 958 char *av[]; 959 { 960 char buff[128]; 961 time_t d; 962 963 (void) setlocale(LC_ALL, ""); 964 #if !defined(TEXT_DOMAIN) 965 #define TEXT_DOMAIN "SYS_TEST" 966 #endif 967 (void) textdomain(TEXT_DOMAIN); 968 969 (void) printf(gettext("Enter date, or blank line to exit.\n\t> ")); 970 (void) fflush(stdout); 971 while (gets(buff) && buff[0]) { 972 d = getreldate(buff, (struct timeb *)NULL); 973 if (d == -1) 974 (void) printf(gettext("Bad format - couldn't convert.\n")); 975 else { 976 (void) cftime(buff, "%c\n", &d); 977 (void) printf("%s", buff); 978 } 979 (void) printf("\t> "); 980 (void) fflush(stdout); 981 } 982 exit(0); 983 /* NOTREACHED */ 984 } 985 #endif /* defined(TEST) */ 986