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 static int 474 yyerror(const char *s __unused) 475 { 476 return (0); 477 } 478 479 480 static time_t 481 ToSeconds(Hours, Minutes, Seconds, Meridian) 482 time_t Hours; 483 time_t Minutes; 484 time_t Seconds; 485 MERIDIAN Meridian; 486 { 487 if (Minutes < 0 || Minutes > 59 || Seconds < 0 || Seconds > 59) 488 return -1; 489 switch (Meridian) { 490 case MER24: 491 if (Hours < 0 || Hours > 23) 492 return -1; 493 return (Hours * 60L + Minutes) * 60L + Seconds; 494 case MERam: 495 if (Hours < 1 || Hours > 12) 496 return -1; 497 if (Hours != 12) 498 return (Hours * 60L + Minutes) * 60L + Seconds; 499 else 500 return Minutes * 60L + Seconds; 501 case MERpm: 502 if (Hours < 1 || Hours > 12) 503 return -1; 504 if (Hours != 12) 505 return ((Hours + 12) * 60L + Minutes) * 60L + Seconds; 506 else 507 return (720L + Minutes) * 60L + Seconds; 508 } 509 /* NOTREACHED */ 510 return (-1); 511 } 512 513 514 static time_t 515 Convert(Month, Day, Year, Hours, Minutes, Seconds, Meridian, DSTmode) 516 time_t Month; 517 time_t Day; 518 time_t Year; 519 time_t Hours; 520 time_t Minutes; 521 time_t Seconds; 522 MERIDIAN Meridian; 523 DSTMODE DSTmode; 524 { 525 static int DaysInMonth[12] = { 526 31, 0, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 527 }; 528 time_t tod; 529 time_t Julian; 530 time_t i; 531 532 if (Year < 0) 533 Year = -Year; 534 if (Year < 138) 535 Year += 1900; 536 DaysInMonth[1] = Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0) 537 ? 29 : 28; 538 if (Year < EPOCH || Year > 2037 539 || Month < 1 || Month > 12 540 /* LINTED Month is a time_t so intermediate results aren't truncated */ 541 || Day < 1 || Day > DaysInMonth[(int)--Month]) 542 return -1; 543 544 for (Julian = Day - 1, i = 0; i < Month; i++) 545 Julian += DaysInMonth[i]; 546 for (i = EPOCH; i < Year; i++) 547 Julian += 365 + (i % 4 == 0); 548 Julian *= SECSPERDAY; 549 Julian += yyTimezone * 60L; 550 if ((tod = ToSeconds(Hours, Minutes, Seconds, Meridian)) < 0) 551 return -1; 552 Julian += tod; 553 if (DSTmode == DSTon 554 || (DSTmode == DSTmaybe && localtime(&Julian)->tm_isdst)) 555 Julian -= 60 * 60; 556 return Julian; 557 } 558 559 560 static time_t 561 DSTcorrect(Start, Future) 562 time_t Start; 563 time_t Future; 564 { 565 time_t StartDay; 566 time_t FutureDay; 567 568 StartDay = (localtime(&Start)->tm_hour + 1) % 24; 569 FutureDay = (localtime(&Future)->tm_hour + 1) % 24; 570 return (Future - Start) + (StartDay - FutureDay) * 60L * 60L; 571 } 572 573 574 static time_t 575 RelativeDate(Start, DayOrdinal, DayNumber) 576 time_t Start; 577 time_t DayOrdinal; 578 time_t DayNumber; 579 { 580 struct tm *tm; 581 time_t now; 582 583 now = Start; 584 tm = localtime(&now); 585 now += SECSPERDAY * ((DayNumber - tm->tm_wday + 7) % 7); 586 now += 7 * SECSPERDAY * (DayOrdinal <= 0 ? DayOrdinal : DayOrdinal - 1); 587 return DSTcorrect(Start, now); 588 } 589 590 591 static time_t 592 RelativeMonth(Start, RelMonth) 593 time_t Start; 594 time_t RelMonth; 595 { 596 struct tm *tm; 597 time_t Month; 598 time_t Year; 599 600 if (RelMonth == 0) 601 return 0; 602 tm = localtime(&Start); 603 Month = 12 * tm->tm_year + tm->tm_mon + RelMonth; 604 Year = Month / 12; 605 Month = Month % 12 + 1; 606 return DSTcorrect(Start, 607 Convert(Month, (time_t)tm->tm_mday, Year, 608 (time_t)tm->tm_hour, (time_t)tm->tm_min, (time_t)tm->tm_sec, 609 MER24, DSTmaybe)); 610 } 611 612 613 static int 614 LookupWord(buff) 615 char *buff; 616 { 617 char *p; 618 char *q; 619 TABLE *tp; 620 uint_t i; 621 int abbrev; 622 623 /* Make it lowercase. */ 624 for (p = buff; *p; p++) 625 if (isupper((u_char)*p)) 626 *p = tolower(*p); 627 628 if (strcmp(buff, "am") == 0 || strcmp(buff, "a.m.") == 0) { 629 yylval.Meridian = MERam; 630 return tMERIDIAN; 631 } 632 if (strcmp(buff, "pm") == 0 || strcmp(buff, "p.m.") == 0) { 633 yylval.Meridian = MERpm; 634 return tMERIDIAN; 635 } 636 637 /* See if we have an abbreviation for a month. */ 638 if (strlen(buff) == 3) 639 abbrev = 1; 640 else if (strlen(buff) == 4 && buff[3] == '.') { 641 abbrev = 1; 642 buff[3] = '\0'; 643 } 644 else 645 abbrev = 0; 646 647 for (tp = MonthDayTable; tp->name; tp++) { 648 if (abbrev) { 649 if (strncmp(buff, tp->name, 3) == 0) { 650 yylval.Number = tp->value; 651 return tp->type; 652 } 653 } 654 else if (strcmp(buff, tp->name) == 0) { 655 yylval.Number = tp->value; 656 return tp->type; 657 } 658 } 659 660 for (tp = TimezoneTable; tp->name; tp++) 661 if (strcmp(buff, tp->name) == 0) { 662 yylval.Number = tp->value; 663 return tp->type; 664 } 665 666 for (tp = UnitsTable; tp->name; tp++) 667 if (strcmp(buff, tp->name) == 0) { 668 yylval.Number = tp->value; 669 return tp->type; 670 } 671 672 /* Strip off any plural and try the units table again. */ 673 i = strlen(buff) - 1; 674 if (buff[i] == 's') { 675 buff[i] = '\0'; 676 for (tp = UnitsTable; tp->name; tp++) 677 if (strcmp(buff, tp->name) == 0) { 678 yylval.Number = tp->value; 679 return tp->type; 680 } 681 } 682 683 for (tp = OtherTable; tp->name; tp++) 684 if (strcmp(buff, tp->name) == 0) { 685 yylval.Number = tp->value; 686 return tp->type; 687 } 688 689 /* Military timezones. */ 690 if (buff[1] == '\0' && isalpha((u_char)*buff)) { 691 for (tp = MilitaryTable; tp->name; tp++) 692 if (strcmp(buff, tp->name) == 0) { 693 yylval.Number = tp->value; 694 return tp->type; 695 } 696 } 697 698 /* Drop out any periods and try the timezone table again. */ 699 for (i = 0, p = q = buff; *q; q++) 700 if (*q != '.') 701 *p++ = *q; 702 else 703 i++; 704 *p = '\0'; 705 if (i) 706 for (tp = TimezoneTable; tp->name; tp++) 707 if (strcmp(buff, tp->name) == 0) { 708 yylval.Number = tp->value; 709 return tp->type; 710 } 711 712 return tID; 713 } 714 715 void 716 pdateerr(p) 717 char *p; 718 { 719 char *name = "DATEMSK"; /* env variable for date format */ 720 char *value; 721 char fmt[256], line[256]; 722 FILE *fp; 723 time_t now; 724 struct tm *tm; 725 726 value = getenv(name); 727 if (value == (char *)0) { 728 fprintf(stderr, 729 dgettext(domainname, "%s: Environment variable %s not set\n"), 730 p, name); 731 return; 732 } 733 switch (getdate_err) { 734 case 0: 735 default: 736 fprintf(stderr, 737 dgettext(domainname, "%s: Unkown getdate() error\n"), p); 738 break; 739 case 1: 740 fprintf(stderr, 741 dgettext(domainname, "%s: %s null or undefined\n"), p, name); 742 break; 743 case 2: 744 fprintf(stderr, dgettext(domainname, 745 "%s: Cannot read template file %s\n"), p, value); 746 break; 747 case 3: 748 fprintf(stderr, dgettext(domainname, 749 "%s: Failed to get file status information\n"), p); 750 break; 751 case 4: 752 fprintf(stderr, dgettext(domainname, 753 "%s: Template file %s not a regular file\n"), p, value); 754 break; 755 case 5: 756 fprintf(stderr, dgettext(domainname, 757 "%s: Error reading template file %s\n"), p, value); 758 break; 759 case 6: 760 fprintf(stderr, dgettext(domainname, 761 "%s: %s failed\n"), p, "malloc()"); 762 break; 763 case 7: 764 fprintf(stderr, dgettext(domainname, 765 "%s: Bad date/time format\n"), p); 766 fp = fopen(value, "r"); 767 if (fp == (FILE *)0) 768 break; 769 now = time((time_t *)0); 770 tm = localtime(&now); 771 fprintf(stderr, dgettext(domainname, 772 "The following are examples of valid formats:\n")); 773 while (fgets(fmt, sizeof (fmt), fp)) { 774 if (strchr(fmt, '%') == (char *)0) 775 continue; 776 fprintf(stderr, " "); 777 (void) strftime(line, sizeof (line), fmt, tm); 778 fprintf(stderr, "%s", line); 779 } 780 (void) fclose(fp); 781 break; 782 case 8: 783 (void) fprintf(stderr, dgettext(domainname, 784 "%s: Invalid date specification\n"), p); 785 break; 786 } 787 } 788 789 #undef yylex 790 static int 791 yylex() 792 { 793 char c; 794 char *p; 795 char buff[20]; 796 int Count; 797 int sign; 798 799 for ( ; ; ) { 800 while (isspace((u_char)*yyInput)) 801 yyInput++; 802 803 if (isdigit((u_char)(c = *yyInput)) || c == '-' || c == '+') { 804 if (c == '-' || c == '+') { 805 sign = c == '-' ? -1 : 1; 806 if (!isdigit((u_char)*++yyInput)) 807 /* skip the '-' sign */ 808 continue; 809 } 810 else 811 sign = 0; 812 yylval.Number = 0; 813 while (isdigit((u_char)(c = *yyInput++))) { 814 int n; 815 char digit = c; 816 (void) sscanf(&digit, "%1d", &n); 817 yylval.Number = 10 * yylval.Number + n; 818 } 819 yyInput--; 820 if (sign < 0) 821 yylval.Number = -yylval.Number; 822 return sign ? tSNUMBER : tUNUMBER; 823 } 824 if (isalpha((u_char)c)) { 825 for (p = buff; isalpha((u_char)(c = *yyInput++)) || c == '.'; ) 826 if (p < &buff[sizeof (buff) - 1]) 827 *p++ = c; 828 *p = '\0'; 829 yyInput--; 830 return LookupWord(buff); 831 } 832 if (c != '(') 833 return *yyInput++; 834 Count = 0; 835 do { 836 c = *yyInput++; 837 if (c == '\0') 838 return c; 839 if (c == '(') 840 Count++; 841 else if (c == ')') 842 Count--; 843 } while (Count > 0); 844 } 845 } 846 847 848 time_t 849 getreldate(p, now) 850 char *p; 851 struct timeb *now; 852 { 853 struct tm *tm; 854 struct timeb ftz; 855 time_t Start; 856 time_t tod; 857 858 if (strcmp(setlocale(LC_TIME, NULL), "C")) { 859 static char localedate[24]; 860 struct tm ltm; 861 862 tm = getdate(p); 863 if (getdate_err == 1 /* NODATEMASK */) { 864 char buffy[BUFSIZ]; 865 time_t current; 866 867 printf(gettext("environment variable %s not set\n"), "DATEMSK"); 868 do { 869 time(¤t); 870 tm = localtime(¤t); 871 memcpy(<m, tm, sizeof(ltm)); 872 tm = <m; 873 874 (void) fputs(gettext("Enter date as mmddhhmm[yy]: "), stdout); 875 (void) fflush(stdout); 876 if (fgets(buffy, sizeof (buffy), stdin) == NULL) { 877 (void) printf(gettext("Encountered EOF on stdin\n")); 878 return(-1); 879 } 880 } while (sscanf(buffy, "%2d%2d%2d%2d%2d", 881 &(tm->tm_mon), &(tm->tm_mday), &(tm->tm_hour), 882 &(tm->tm_min), &(tm->tm_year)) < 4); 883 884 (tm->tm_mon)--; 885 } else if (tm == NULL) 886 return(-1); 887 888 (void)sprintf(localedate, "%d:%2.2d %d/%d %d", 889 tm->tm_hour, tm->tm_min, tm->tm_mon + 1, 890 tm->tm_mday, CHECK_TM(tm->tm_year)); 891 p = localedate; 892 } 893 894 yyInput = p; 895 if (now == NULL) { 896 now = &ftz; 897 (void) time(&ftz.time); 898 /* Set the timezone global. */ 899 tzset(); 900 /* LINTED timezone is time_t so intermediate results aren't truncated */ 901 ftz.timezone = (int) timezone / 60; 902 } 903 904 tm = localtime(&now->time); 905 yyYear = tm->tm_year; 906 yyMonth = tm->tm_mon + 1; 907 yyDay = tm->tm_mday; 908 yyTimezone = now->timezone; 909 yyDSTmode = DSTmaybe; 910 yyHour = tm->tm_hour; 911 yyMinutes = tm->tm_min; 912 yySeconds = tm->tm_sec; 913 yyMeridian = MER24; 914 yyRelSeconds = 0; 915 yyRelMonth = 0; 916 yyHaveDate = 0; 917 yyHaveDay = 0; 918 yyHaveRel = 0; 919 yyHaveTime = 0; 920 yyHaveZone = 0; 921 922 if (yyparse() 923 || yyHaveTime > 1 || yyHaveZone > 1 || yyHaveDate > 1 || yyHaveDay > 1) 924 return -1; 925 926 if (yyHaveDate || yyHaveTime || yyHaveDay) { 927 Start = Convert(yyMonth, yyDay, yyYear, yyHour, yyMinutes, yySeconds, 928 yyMeridian, yyDSTmode); 929 if (Start < 0) 930 return -1; 931 } 932 else { 933 Start = now->time; 934 if (!yyHaveRel) 935 Start -= ((tm->tm_hour * 60L) + tm->tm_min * 60L) + tm->tm_sec; 936 } 937 938 Start += yyRelSeconds; 939 Start += RelativeMonth(Start, yyRelMonth); 940 941 if (yyHaveDay && !yyHaveDate) { 942 tod = RelativeDate(Start, yyDayOrdinal, yyDayNumber); 943 Start += tod; 944 } 945 946 /* Have to do *something* with a legitimate -1 so it's distinguishable 947 * from the error return value. (Alternately could set errno on error.) */ 948 return Start == -1 ? 0 : Start; 949 } 950 951 #if defined(TEST) 952 953 /* ARGSUSED */ 954 main(ac, av) 955 int ac; 956 char *av[]; 957 { 958 char buff[128]; 959 time_t d; 960 961 (void) setlocale(LC_ALL, ""); 962 #if !defined(TEXT_DOMAIN) 963 #define TEXT_DOMAIN "SYS_TEST" 964 #endif 965 (void) textdomain(TEXT_DOMAIN); 966 967 (void) printf(gettext("Enter date, or blank line to exit.\n\t> ")); 968 (void) fflush(stdout); 969 while (gets(buff) && buff[0]) { 970 d = getreldate(buff, (struct timeb *)NULL); 971 if (d == -1) 972 (void) printf(gettext("Bad format - couldn't convert.\n")); 973 else { 974 (void) cftime(buff, "%c\n", &d); 975 (void) printf("%s", buff); 976 } 977 (void) printf("\t> "); 978 (void) fflush(stdout); 979 } 980 exit(0); 981 /* NOTREACHED */ 982 } 983 #endif /* defined(TEST) */ 984