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
yyerror(s)475 yyerror(s)
476 char *s;
477 {
478 }
479
480
481 static time_t
ToSeconds(Hours,Minutes,Seconds,Meridian)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
Convert(Month,Day,Year,Hours,Minutes,Seconds,Meridian,DSTmode)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
DSTcorrect(Start,Future)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
RelativeDate(Start,DayOrdinal,DayNumber)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
RelativeMonth(Start,RelMonth)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
LookupWord(buff)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
pdateerr(p)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
yylex()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
getreldate(p,now)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 */
main(ac,av)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