getdate.y revision fe0e7ec4d916b05b52d8c7cc8a3e6a1b28e77b6f
%{
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/* $OrigRevision: 2.1 $
**
** Originally written by Steven M. Bellovin <smb@research.att.com> while
** at the University of North Carolina at Chapel Hill. Later tweaked by
** a couple of people on Usenet. Completely overhauled by Rich $alz
** <rsalz@bbn.com> and Jim Berets <jberets@bbn.com> in August, 1990;
** send any email to Rich.
**
** This grammar has eight shift/reduce conflicts.
**
** This code is in the public domain and has no copyright.
*/
/* SUPPRESS 287 on yaccpar_sccsid *//* Unusd static variable */
/* SUPPRESS 288 on yyerrlab *//* Label unused */
#include <stdio.h>
#include <ctype.h>
#include <sys/types.h>
#define NEED_TZSET
struct timeb {
time_t time; /* Seconds since the epoch */
unsigned short millitm; /* Field not used */
short timezone;
short dstflag; /* Field not used */
};
#include <time.h>
#include <locale.h>
#include <string.h>
#include <stdlib.h>
#include <note.h>
#include <libintl.h>
#if !defined(lint) && !defined(SABER)
static char RCS[] =
"$Header: /home/laramie/berliner/ws/backup/usr/src/cmd/backup/lib/getdate.y,v 1.5 1992/06/09 21:46:21 sam Exp $";
#endif /* !defined(lint) && !defined(SABER) */
#define EPOCH 1970
#define HOURN(x) (x * 60)
#define SECSPERDAY (24L * 60L * 60L)
#define CHECK_TM(y) (((y) % 100) < 70 ? (y) + 2000 : (y) + 1900)
/*
** An entry in the lexical lookup table.
*/
typedef struct _TABLE {
char *name;
int type;
time_t value;
} TABLE;
/*
** Daylight-savings mode: on, off, or not yet known.
*/
typedef enum _DSTMODE {
DSTon, DSToff, DSTmaybe
} DSTMODE;
/*
** Meridian: am, pm, or 24-hour style.
*/
typedef enum _MERIDIAN {
MERam, MERpm, MER24
} MERIDIAN;
/*
** Global variables. We could get rid of most of these by using a good
** union as the yacc stack. (This routine was originally written before
** yacc had the %union construct.) Maybe someday; right now we only use
** the %union very rarely.
*/
static char *yyInput;
static DSTMODE yyDSTmode;
static time_t yyDayOrdinal;
static time_t yyDayNumber;
static int yyHaveDate;
static int yyHaveDay;
static int yyHaveRel;
static int yyHaveTime;
static int yyHaveZone;
static time_t yyTimezone;
static time_t yyDay;
static time_t yyHour;
static time_t yyMinutes;
static time_t yyMonth;
static time_t yySeconds;
static time_t yyYear;
static MERIDIAN yyMeridian;
static time_t yyRelMonth;
static time_t yyRelSeconds;
static char *domainname = "hsm_libdump"; /* for dgettext() */
#define yylex 1 /* suppress yacc's definition */
%}
%union {
time_t Number;
enum _MERIDIAN Meridian;
}
%token tAGO tDAY tDAYZONE tID tMERIDIAN tMINUTE_UNIT tMONTH tMONTH_UNIT
%token tSEC_UNIT tSNUMBER tUNUMBER tZONE
%type <Number> tDAY tDAYZONE tMINUTE_UNIT tMONTH tMONTH_UNIT
%type <Number> tSEC_UNIT tSNUMBER tUNUMBER tZONE
%type <Meridian> tMERIDIAN o_merid
%%
spec : /* NULL */
| spec item
;
item : time {
yyHaveTime++;
}
| zone {
yyHaveZone++;
}
| date {
yyHaveDate++;
}
| day {
yyHaveDay++;
}
| rel {
yyHaveRel++;
}
| number
;
time : tUNUMBER tMERIDIAN {
yyHour = $1;
yyMinutes = 0;
yySeconds = 0;
yyMeridian = $2;
}
| tUNUMBER ':' tUNUMBER o_merid {
yyHour = $1;
yyMinutes = $3;
yySeconds = 0;
yyMeridian = $4;
}
| tUNUMBER ':' tUNUMBER tSNUMBER {
yyHour = $1;
yyMinutes = $3;
yyMeridian = MER24;
yyDSTmode = DSToff;
yyTimezone = - ($4 % 100 + ($4 / 100) * 60);
}
| tUNUMBER ':' tUNUMBER ':' tUNUMBER o_merid {
yyHour = $1;
yyMinutes = $3;
yySeconds = $5;
yyMeridian = $6;
}
| tUNUMBER ':' tUNUMBER ':' tUNUMBER tSNUMBER {
yyHour = $1;
yyMinutes = $3;
yySeconds = $5;
yyMeridian = MER24;
yyDSTmode = DSToff;
yyTimezone = - ($6 % 100 + ($6 / 100) * 60);
}
;
zone : tZONE {
yyTimezone = $1;
yyDSTmode = DSToff;
}
| tDAYZONE {
yyTimezone = $1;
yyDSTmode = DSTon;
}
;
day : tDAY {
yyDayOrdinal = 1;
yyDayNumber = $1;
}
| tDAY ',' {
yyDayOrdinal = 1;
yyDayNumber = $1;
}
| tUNUMBER tDAY {
yyDayOrdinal = $1;
yyDayNumber = $2;
}
;
date : tUNUMBER '/' tUNUMBER {
yyMonth = $1;
yyDay = $3;
}
| tUNUMBER '/' tUNUMBER '/' tUNUMBER {
yyMonth = $1;
yyDay = $3;
yyYear = $5;
}
| tMONTH tUNUMBER {
yyMonth = $1;
yyDay = $2;
}
| tMONTH tUNUMBER ',' tUNUMBER {
yyMonth = $1;
yyDay = $2;
yyYear = $4;
}
| tUNUMBER tMONTH {
yyMonth = $2;
yyDay = $1;
}
| tUNUMBER tMONTH tUNUMBER {
yyMonth = $2;
yyDay = $1;
yyYear = $3;
}
;
rel : relunit tAGO {
yyRelSeconds = -yyRelSeconds;
yyRelMonth = -yyRelMonth;
}
| relunit
;
relunit : tUNUMBER tMINUTE_UNIT {
yyRelSeconds += $1 * $2 * 60L;
}
| tSNUMBER tMINUTE_UNIT {
yyRelSeconds += $1 * $2 * 60L;
}
| tMINUTE_UNIT {
yyRelSeconds += $1 * 60L;
}
| tSNUMBER tSEC_UNIT {
yyRelSeconds += $1;
}
| tUNUMBER tSEC_UNIT {
yyRelSeconds += $1;
}
| tSEC_UNIT {
yyRelSeconds++;
}
| tSNUMBER tMONTH_UNIT {
yyRelMonth += $1 * $2;
}
| tUNUMBER tMONTH_UNIT {
yyRelMonth += $1 * $2;
}
| tMONTH_UNIT {
yyRelMonth += $1;
}
;
number : tUNUMBER {
if (yyHaveTime && yyHaveDate && !yyHaveRel)
yyYear = $1;
else {
yyHaveTime++;
if ($1 < 100) {
yyHour = $1;
yyMinutes = 0;
}
else {
yyHour = $1 / 100;
yyMinutes = $1 % 100;
}
yySeconds = 0;
yyMeridian = MER24;
}
}
;
o_merid : /* NULL */ {
$$ = MER24;
}
| tMERIDIAN {
$$ = $1;
}
;
%%
/* Month and day table. */
static TABLE MonthDayTable[] = {
{ "january", tMONTH, 1 },
{ "february", tMONTH, 2 },
{ "march", tMONTH, 3 },
{ "april", tMONTH, 4 },
{ "may", tMONTH, 5 },
{ "june", tMONTH, 6 },
{ "july", tMONTH, 7 },
{ "august", tMONTH, 8 },
{ "september", tMONTH, 9 },
{ "sept", tMONTH, 9 },
{ "october", tMONTH, 10 },
{ "november", tMONTH, 11 },
{ "december", tMONTH, 12 },
{ "sunday", tDAY, 0 },
{ "monday", tDAY, 1 },
{ "tuesday", tDAY, 2 },
{ "tues", tDAY, 2 },
{ "wednesday", tDAY, 3 },
{ "wednes", tDAY, 3 },
{ "thursday", tDAY, 4 },
{ "thur", tDAY, 4 },
{ "thurs", tDAY, 4 },
{ "friday", tDAY, 5 },
{ "saturday", tDAY, 6 },
{ NULL }
};
/* Time units table. */
static TABLE UnitsTable[] = {
{ "year", tMONTH_UNIT, 12 },
{ "month", tMONTH_UNIT, 1 },
{ "fortnight", tMINUTE_UNIT, 14 * 24 * 60 },
{ "week", tMINUTE_UNIT, 7 * 24 * 60 },
{ "day", tMINUTE_UNIT, 1 * 24 * 60 },
{ "hour", tMINUTE_UNIT, 60 },
{ "minute", tMINUTE_UNIT, 1 },
{ "min", tMINUTE_UNIT, 1 },
{ "second", tSEC_UNIT, 1 },
{ "sec", tSEC_UNIT, 1 },
{ NULL }
};
/* Assorted relative-time words. */
static TABLE OtherTable[] = {
{ "tomorrow", tMINUTE_UNIT, 1 * 24 * 60 },
{ "yesterday", tMINUTE_UNIT, -1 * 24 * 60 },
{ "today", tMINUTE_UNIT, 0 },
{ "now", tMINUTE_UNIT, 0 },
{ "last", tUNUMBER, -1 },
{ "this", tMINUTE_UNIT, 0 },
{ "next", tUNUMBER, 2 },
{ "first", tUNUMBER, 1 },
/* { "second", tUNUMBER, 2 }, */
{ "third", tUNUMBER, 3 },
{ "fourth", tUNUMBER, 4 },
{ "fifth", tUNUMBER, 5 },
{ "sixth", tUNUMBER, 6 },
{ "seventh", tUNUMBER, 7 },
{ "eighth", tUNUMBER, 8 },
{ "ninth", tUNUMBER, 9 },
{ "tenth", tUNUMBER, 10 },
{ "eleventh", tUNUMBER, 11 },
{ "twelfth", tUNUMBER, 12 },
{ "ago", tAGO, 1 },
{ NULL }
};
/* The timezone table. */
static TABLE TimezoneTable[] = {
{ "gmt", tZONE, HOURN( 0) }, /* Greenwich Mean */
{ "ut", tZONE, HOURN( 0) }, /* Universal (Coordinated) */
{ "utc", tZONE, HOURN( 0) },
{ "wet", tZONE, HOURN( 0) }, /* Western European */
{ "bst", tDAYZONE, HOURN( 0) }, /* British Summer */
{ "wat", tZONE, HOURN( 1) }, /* West Africa */
{ "at", tZONE, HOURN( 2) }, /* Azores */
#if 0
/* For completeness. BST is also British Summer, and GST is
* also Guam Standard. */
{ "bst", tZONE, HOURN( 3) }, /* Brazil Standard */
{ "gst", tZONE, HOURN( 3) }, /* Greenland Standard */
#endif
{ "nft", tZONE, HOURN(3.5) }, /* Newfoundland */
{ "nst", tZONE, HOURN(3.5) }, /* Newfoundland Standard */
{ "ndt", tDAYZONE, HOURN(3.5) }, /* Newfoundland Daylight */
{ "ast", tZONE, HOURN( 4) }, /* Atlantic Standard */
{ "adt", tDAYZONE, HOURN( 4) }, /* Atlantic Daylight */
{ "est", tZONE, HOURN( 5) }, /* Eastern Standard */
{ "edt", tDAYZONE, HOURN( 5) }, /* Eastern Daylight */
{ "cst", tZONE, HOURN( 6) }, /* Central Standard */
{ "cdt", tDAYZONE, HOURN( 6) }, /* Central Daylight */
{ "mst", tZONE, HOURN( 7) }, /* Mountain Standard */
{ "mdt", tDAYZONE, HOURN( 7) }, /* Mountain Daylight */
{ "pst", tZONE, HOURN( 8) }, /* Pacific Standard */
{ "pdt", tDAYZONE, HOURN( 8) }, /* Pacific Daylight */
{ "yst", tZONE, HOURN( 9) }, /* Yukon Standard */
{ "ydt", tDAYZONE, HOURN( 9) }, /* Yukon Daylight */
{ "hst", tZONE, HOURN(10) }, /* Hawaii Standard */
{ "hdt", tDAYZONE, HOURN(10) }, /* Hawaii Daylight */
{ "cat", tZONE, HOURN(10) }, /* Central Alaska */
{ "ahst", tZONE, HOURN(10) }, /* Alaska-Hawaii Standard */
{ "nt", tZONE, HOURN(11) }, /* Nome */
{ "idlw", tZONE, HOURN(12) }, /* International Date Line West */
{ "cet", tZONE, -HOURN(1) }, /* Central European */
{ "met", tZONE, -HOURN(1) }, /* Middle European */
{ "mewt", tZONE, -HOURN(1) }, /* Middle European Winter */
{ "mest", tDAYZONE, -HOURN(1) }, /* Middle European Summer */
{ "swt", tZONE, -HOURN(1) }, /* Swedish Winter */
{ "sst", tDAYZONE, -HOURN(1) }, /* Swedish Summer */
{ "fwt", tZONE, -HOURN(1) }, /* French Winter */
{ "fst", tDAYZONE, -HOURN(1) }, /* French Summer */
{ "eet", tZONE, -HOURN(2) }, /* Eastern Europe, USSR Zone 1 */
{ "bt", tZONE, -HOURN(3) }, /* Baghdad, USSR Zone 2 */
{ "it", tZONE, -HOURN(3.5) },/* Iran */
{ "zp4", tZONE, -HOURN(4) }, /* USSR Zone 3 */
{ "zp5", tZONE, -HOURN(5) }, /* USSR Zone 4 */
{ "ist", tZONE, -HOURN(5.5) },/* Indian Standard */
{ "zp6", tZONE, -HOURN(6) }, /* USSR Zone 5 */
#if 0
/* For completeness. NST is also Newfoundland Stanard, nad SST is
* also Swedish Summer. */
{ "nst", tZONE, -HOURN(6.5) },/* North Sumatra */
{ "sst", tZONE, -HOURN(7) }, /* South Sumatra, USSR Zone 6 */
#endif /* 0 */
{ "wast", tZONE, -HOURN(7) }, /* West Australian Standard */
{ "wadt", tDAYZONE, -HOURN(7) }, /* West Australian Daylight */
{ "jt", tZONE, -HOURN(7.5) },/* Java (3pm in Cronusland!) */
{ "cct", tZONE, -HOURN(8) }, /* China Coast, USSR Zone 7 */
{ "jst", tZONE, -HOURN(9) }, /* Japan Standard, USSR Zone 8 */
{ "cast", tZONE, -HOURN(9.5) },/* Central Australian Standard */
{ "cadt", tDAYZONE, -HOURN(9.5) },/* Central Australian Daylight */
{ "east", tZONE, -HOURN(10) }, /* Eastern Australian Standard */
{ "eadt", tDAYZONE, -HOURN(10) }, /* Eastern Australian Daylight */
{ "gst", tZONE, -HOURN(10) }, /* Guam Standard, USSR Zone 9 */
{ "nzt", tZONE, -HOURN(12) }, /* New Zealand */
{ "nzst", tZONE, -HOURN(12) }, /* New Zealand Standard */
{ "nzdt", tDAYZONE, -HOURN(12) }, /* New Zealand Daylight */
{ "idle", tZONE, -HOURN(12) }, /* International Date Line East */
{ NULL }
};
/* Military timezone table. */
static TABLE MilitaryTable[] = {
{ "a", tZONE, HOURN( 1) },
{ "b", tZONE, HOURN( 2) },
{ "c", tZONE, HOURN( 3) },
{ "d", tZONE, HOURN( 4) },
{ "e", tZONE, HOURN( 5) },
{ "f", tZONE, HOURN( 6) },
{ "g", tZONE, HOURN( 7) },
{ "h", tZONE, HOURN( 8) },
{ "i", tZONE, HOURN( 9) },
{ "k", tZONE, HOURN( 10) },
{ "l", tZONE, HOURN( 11) },
{ "m", tZONE, HOURN( 12) },
{ "n", tZONE, HOURN(- 1) },
{ "o", tZONE, HOURN(- 2) },
{ "p", tZONE, HOURN(- 3) },
{ "q", tZONE, HOURN(- 4) },
{ "r", tZONE, HOURN(- 5) },
{ "s", tZONE, HOURN(- 6) },
{ "t", tZONE, HOURN(- 7) },
{ "u", tZONE, HOURN(- 8) },
{ "v", tZONE, HOURN(- 9) },
{ "w", tZONE, HOURN(-10) },
{ "x", tZONE, HOURN(-11) },
{ "y", tZONE, HOURN(-12) },
{ "z", tZONE, HOURN( 0) },
{ NULL }
};
/* ARGSUSED */
static void
yyerror(s)
char *s;
{
}
static time_t
ToSeconds(Hours, Minutes, Seconds, Meridian)
time_t Hours;
time_t Minutes;
time_t Seconds;
MERIDIAN Meridian;
{
if (Minutes < 0 || Minutes > 59 || Seconds < 0 || Seconds > 59)
return -1;
switch (Meridian) {
case MER24:
if (Hours < 0 || Hours > 23)
return -1;
return (Hours * 60L + Minutes) * 60L + Seconds;
case MERam:
if (Hours < 1 || Hours > 12)
return -1;
if (Hours != 12)
return (Hours * 60L + Minutes) * 60L + Seconds;
else
return Minutes * 60L + Seconds;
case MERpm:
if (Hours < 1 || Hours > 12)
return -1;
if (Hours != 12)
return ((Hours + 12) * 60L + Minutes) * 60L + Seconds;
else
return (720L + Minutes) * 60L + Seconds;
}
/* NOTREACHED */
return (-1);
}
static time_t
Convert(Month, Day, Year, Hours, Minutes, Seconds, Meridian, DSTmode)
time_t Month;
time_t Day;
time_t Year;
time_t Hours;
time_t Minutes;
time_t Seconds;
MERIDIAN Meridian;
DSTMODE DSTmode;
{
static int DaysInMonth[12] = {
31, 0, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
};
time_t tod;
time_t Julian;
time_t i;
if (Year < 0)
Year = -Year;
if (Year < 138)
Year += 1900;
DaysInMonth[1] = Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0)
? 29 : 28;
if (Year < EPOCH || Year > 2037
|| Month < 1 || Month > 12
/* LINTED Month is a time_t so intermediate results aren't truncated */
|| Day < 1 || Day > DaysInMonth[(int)--Month])
return -1;
for (Julian = Day - 1, i = 0; i < Month; i++)
Julian += DaysInMonth[i];
for (i = EPOCH; i < Year; i++)
Julian += 365 + (i % 4 == 0);
Julian *= SECSPERDAY;
Julian += yyTimezone * 60L;
if ((tod = ToSeconds(Hours, Minutes, Seconds, Meridian)) < 0)
return -1;
Julian += tod;
if (DSTmode == DSTon
|| (DSTmode == DSTmaybe && localtime(&Julian)->tm_isdst))
Julian -= 60 * 60;
return Julian;
}
static time_t
DSTcorrect(Start, Future)
time_t Start;
time_t Future;
{
time_t StartDay;
time_t FutureDay;
StartDay = (localtime(&Start)->tm_hour + 1) % 24;
FutureDay = (localtime(&Future)->tm_hour + 1) % 24;
return (Future - Start) + (StartDay - FutureDay) * 60L * 60L;
}
static time_t
RelativeDate(Start, DayOrdinal, DayNumber)
time_t Start;
time_t DayOrdinal;
time_t DayNumber;
{
struct tm *tm;
time_t now;
now = Start;
tm = localtime(&now);
now += SECSPERDAY * ((DayNumber - tm->tm_wday + 7) % 7);
now += 7 * SECSPERDAY * (DayOrdinal <= 0 ? DayOrdinal : DayOrdinal - 1);
return DSTcorrect(Start, now);
}
static time_t
RelativeMonth(Start, RelMonth)
time_t Start;
time_t RelMonth;
{
struct tm *tm;
time_t Month;
time_t Year;
if (RelMonth == 0)
return 0;
tm = localtime(&Start);
Month = 12 * tm->tm_year + tm->tm_mon + RelMonth;
Year = Month / 12;
Month = Month % 12 + 1;
return DSTcorrect(Start,
Convert(Month, (time_t)tm->tm_mday, Year,
(time_t)tm->tm_hour, (time_t)tm->tm_min, (time_t)tm->tm_sec,
MER24, DSTmaybe));
}
static int
LookupWord(buff)
char *buff;
{
char *p;
char *q;
TABLE *tp;
uint_t i;
int abbrev;
/* Make it lowercase. */
for (p = buff; *p; p++)
if (isupper((u_char)*p))
*p = tolower(*p);
if (strcmp(buff, "am") == 0 || strcmp(buff, "a.m.") == 0) {
yylval.Meridian = MERam;
return tMERIDIAN;
}
if (strcmp(buff, "pm") == 0 || strcmp(buff, "p.m.") == 0) {
yylval.Meridian = MERpm;
return tMERIDIAN;
}
/* See if we have an abbreviation for a month. */
if (strlen(buff) == 3)
abbrev = 1;
else if (strlen(buff) == 4 && buff[3] == '.') {
abbrev = 1;
buff[3] = '\0';
}
else
abbrev = 0;
for (tp = MonthDayTable; tp->name; tp++) {
if (abbrev) {
if (strncmp(buff, tp->name, 3) == 0) {
yylval.Number = tp->value;
return tp->type;
}
}
else if (strcmp(buff, tp->name) == 0) {
yylval.Number = tp->value;
return tp->type;
}
}
for (tp = TimezoneTable; tp->name; tp++)
if (strcmp(buff, tp->name) == 0) {
yylval.Number = tp->value;
return tp->type;
}
for (tp = UnitsTable; tp->name; tp++)
if (strcmp(buff, tp->name) == 0) {
yylval.Number = tp->value;
return tp->type;
}
/* Strip off any plural and try the units table again. */
i = strlen(buff) - 1;
if (buff[i] == 's') {
buff[i] = '\0';
for (tp = UnitsTable; tp->name; tp++)
if (strcmp(buff, tp->name) == 0) {
yylval.Number = tp->value;
return tp->type;
}
}
for (tp = OtherTable; tp->name; tp++)
if (strcmp(buff, tp->name) == 0) {
yylval.Number = tp->value;
return tp->type;
}
/* Military timezones. */
if (buff[1] == '\0' && isalpha((u_char)*buff)) {
for (tp = MilitaryTable; tp->name; tp++)
if (strcmp(buff, tp->name) == 0) {
yylval.Number = tp->value;
return tp->type;
}
}
/* Drop out any periods and try the timezone table again. */
for (i = 0, p = q = buff; *q; q++)
if (*q != '.')
*p++ = *q;
else
i++;
*p = '\0';
if (i)
for (tp = TimezoneTable; tp->name; tp++)
if (strcmp(buff, tp->name) == 0) {
yylval.Number = tp->value;
return tp->type;
}
return tID;
}
void
pdateerr(p)
char *p;
{
char *name = "DATEMSK"; /* env variable for date format */
char *value;
char fmt[256], line[256];
FILE *fp;
time_t now;
struct tm *tm;
value = getenv(name);
if (value == (char *)0) {
fprintf(stderr,
dgettext(domainname, "%s: Environment variable %s not set\n"),
p, name);
return;
}
switch (getdate_err) {
case 0:
default:
fprintf(stderr,
dgettext(domainname, "%s: Unkown getdate() error\n"), p);
break;
case 1:
fprintf(stderr,
dgettext(domainname, "%s: %s null or undefined\n"), p, name);
break;
case 2:
fprintf(stderr, dgettext(domainname,
"%s: Cannot read template file %s\n"), p, value);
break;
case 3:
fprintf(stderr, dgettext(domainname,
"%s: Failed to get file status information\n"), p);
break;
case 4:
fprintf(stderr, dgettext(domainname,
"%s: Template file %s not a regular file\n"), p, value);
break;
case 5:
fprintf(stderr, dgettext(domainname,
"%s: Error reading template file %s\n"), p, value);
break;
case 6:
fprintf(stderr, dgettext(domainname,
"%s: %s failed\n"), p, "malloc()");
break;
case 7:
fprintf(stderr, dgettext(domainname,
"%s: Bad date/time format\n"), p);
fp = fopen(value, "r");
if (fp == (FILE *)0)
break;
now = time((time_t *)0);
tm = localtime(&now);
fprintf(stderr, dgettext(domainname,
"The following are examples of valid formats:\n"));
while (fgets(fmt, sizeof (fmt), fp)) {
if (strchr(fmt, '%') == (char *)0)
continue;
fprintf(stderr, " ");
(void) strftime(line, sizeof (line), fmt, tm);
fprintf(stderr, "%s", line);
}
(void) fclose(fp);
break;
case 8:
(void) fprintf(stderr, dgettext(domainname,
"%s: Invalid date specification\n"), p);
break;
}
}
#undef yylex
static int
yylex()
{
char c;
char *p;
char buff[20];
int Count;
int sign;
for ( ; ; ) {
while (isspace((u_char)*yyInput))
yyInput++;
if (isdigit((u_char)(c = *yyInput)) || c == '-' || c == '+') {
if (c == '-' || c == '+') {
sign = c == '-' ? -1 : 1;
if (!isdigit((u_char)*++yyInput))
/* skip the '-' sign */
continue;
}
else
sign = 0;
yylval.Number = 0;
while (isdigit((u_char)(c = *yyInput++))) {
int n;
char digit = c;
(void) sscanf(&digit, "%1d", &n);
yylval.Number = 10 * yylval.Number + n;
}
yyInput--;
if (sign < 0)
yylval.Number = -yylval.Number;
return sign ? tSNUMBER : tUNUMBER;
}
if (isalpha((u_char)c)) {
for (p = buff; isalpha((u_char)(c = *yyInput++)) || c == '.'; )
if (p < &buff[sizeof (buff) - 1])
*p++ = c;
*p = '\0';
yyInput--;
return LookupWord(buff);
}
if (c != '(')
return *yyInput++;
Count = 0;
do {
c = *yyInput++;
if (c == '\0')
return c;
if (c == '(')
Count++;
else if (c == ')')
Count--;
} while (Count > 0);
}
}
time_t
getreldate(p, now)
char *p;
struct timeb *now;
{
struct tm *tm;
struct timeb ftz;
time_t Start;
time_t tod;
if (strcmp(setlocale(LC_TIME, NULL), "C")) {
static char localedate[24];
struct tm ltm;
tm = getdate(p);
if (getdate_err == 1 /* NODATEMASK */) {
char buffy[BUFSIZ];
time_t current;
printf(gettext("environment variable %s not set\n"), "DATEMSK");
do {
time(&current);
tm = localtime(&current);
memcpy(&ltm, tm, sizeof(ltm));
tm = &ltm;
(void) fputs(gettext("Enter date as mmddhhmm[yy]: "), stdout);
(void) fflush(stdout);
if (fgets(buffy, sizeof (buffy), stdin) == NULL) {
(void) printf(gettext("Encountered EOF on stdin\n"));
return(-1);
}
} while (sscanf(buffy, "%2d%2d%2d%2d%2d",
&(tm->tm_mon), &(tm->tm_mday), &(tm->tm_hour),
&(tm->tm_min), &(tm->tm_year)) < 4);
(tm->tm_mon)--;
} else if (tm == NULL)
return(-1);
(void)sprintf(localedate, "%d:%2.2d %d/%d %d",
tm->tm_hour, tm->tm_min, tm->tm_mon + 1,
tm->tm_mday, CHECK_TM(tm->tm_year));
p = localedate;
}
yyInput = p;
if (now == NULL) {
now = &ftz;
(void) time(&ftz.time);
/* Set the timezone global. */
tzset();
/* LINTED timezone is time_t so intermediate results aren't truncated */
ftz.timezone = (int) timezone / 60;
}
tm = localtime(&now->time);
yyYear = tm->tm_year;
yyMonth = tm->tm_mon + 1;
yyDay = tm->tm_mday;
yyTimezone = now->timezone;
yyDSTmode = DSTmaybe;
yyHour = tm->tm_hour;
yyMinutes = tm->tm_min;
yySeconds = tm->tm_sec;
yyMeridian = MER24;
yyRelSeconds = 0;
yyRelMonth = 0;
yyHaveDate = 0;
yyHaveDay = 0;
yyHaveRel = 0;
yyHaveTime = 0;
yyHaveZone = 0;
if (yyparse()
|| yyHaveTime > 1 || yyHaveZone > 1 || yyHaveDate > 1 || yyHaveDay > 1)
return -1;
if (yyHaveDate || yyHaveTime || yyHaveDay) {
Start = Convert(yyMonth, yyDay, yyYear, yyHour, yyMinutes, yySeconds,
yyMeridian, yyDSTmode);
if (Start < 0)
return -1;
}
else {
Start = now->time;
if (!yyHaveRel)
Start -= ((tm->tm_hour * 60L) + tm->tm_min * 60L) + tm->tm_sec;
}
Start += yyRelSeconds;
Start += RelativeMonth(Start, yyRelMonth);
if (yyHaveDay && !yyHaveDate) {
tod = RelativeDate(Start, yyDayOrdinal, yyDayNumber);
Start += tod;
}
/* Have to do *something* with a legitimate -1 so it's distinguishable
* from the error return value. (Alternately could set errno on error.) */
return Start == -1 ? 0 : Start;
}
#if defined(TEST)
/* ARGSUSED */
main(ac, av)
int ac;
char *av[];
{
char buff[128];
time_t d;
(void) setlocale(LC_ALL, "");
#if !defined(TEXT_DOMAIN)
#define TEXT_DOMAIN "SYS_TEST"
#endif
(void) textdomain(TEXT_DOMAIN);
(void) printf(gettext("Enter date, or blank line to exit.\n\t> "));
(void) fflush(stdout);
while (gets(buff) && buff[0]) {
d = getreldate(buff, (struct timeb *)NULL);
if (d == -1)
(void) printf(gettext("Bad format - couldn't convert.\n"));
else {
(void) cftime(buff, "%c\n", &d);
(void) printf("%s", buff);
}
(void) printf("\t> ");
(void) fflush(stdout);
}
exit(0);
/* NOTREACHED */
}
#endif /* defined(TEST) */