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