Mercurial > illumos > onarm
annotate usr/src/cmd/backup/lib/getdate.y @ 4:1a15d5aaf794
synchronized with onnv_86 (6202) in onnv-gate
| author | Koji Uno <koji.uno@sun.com> |
|---|---|
| date | Mon, 31 Aug 2009 14:38:03 +0900 |
| parents | c9caec207d52 |
| children |
| rev | line source |
|---|---|
| 0 | 1 %{ |
| 2 /* | |
| 3 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. | |
| 4 * Use is subject to license terms. | |
| 5 */ | |
|
4
1a15d5aaf794
synchronized with onnv_86 (6202) in onnv-gate
Koji Uno <koji.uno@sun.com>
parents:
0
diff
changeset
|
6 #pragma ident "%Z%%M% %I% %E% SMI" |
| 0 | 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) */ |