3 static char elsieid
[] = "@(#)zic.c 7.79";
4 #endif /* !defined NOID */
5 #endif /* !defined lint */
11 #include "sys/stat.h" /* for umask manifest constants */
12 #endif /* defined unix */
15 ** On some ancient hosts, predicates like `isspace(C)' are defined
16 ** only if isascii(C) || C == EOF. Modern hosts obey the C Standard,
17 ** which says they are defined only if C == ((unsigned char) C) || C == EOF.
18 ** Neither the C Standard nor Posix require that `isascii' exist.
19 ** For portability, we check both ancient and modern requirements.
20 ** If isascii is not defined, the isascii check succeeds trivially.
28 const char * r_filename
;
32 int r_loyear
; /* for example, 1986 */
33 int r_hiyear
; /* for example, 1986 */
34 const char * r_yrtype
;
36 int r_month
; /* 0..11 */
38 int r_dycode
; /* see below */
42 long r_tod
; /* time from midnight */
43 int r_todisstd
; /* above is standard time if TRUE */
44 /* or wall clock time if FALSE */
45 int r_todisgmt
; /* above is GMT if TRUE */
46 /* or local time if FALSE */
47 long r_stdoff
; /* offset from standard time */
48 const char * r_abbrvar
; /* variable part of abbreviation */
50 int r_todo
; /* a rule to do (used in outzone) */
51 time_t r_temp
; /* used in outzone */
55 ** r_dycode r_dayofmonth r_wday
58 #define DC_DOM 0 /* 1..31 */ /* unused */
59 #define DC_DOWGEQ 1 /* 1..31 */ /* 0..6 (Sun..Sat) */
60 #define DC_DOWLEQ 2 /* 1..31 */ /* 0..6 (Sun..Sat) */
63 const char * z_filename
;
69 const char * z_format
;
73 struct rule
* z_rules
;
76 struct rule z_untilrule
;
80 extern int getopt
P((int argc
, char * const argv
[],
81 const char * options
));
82 extern char * icatalloc
P((char * old
, const char * new));
83 extern char * icpyalloc
P((const char * string
));
84 extern void ifree
P((char * p
));
85 extern char * imalloc
P((int n
));
86 extern void * irealloc
P((void * old
, int n
));
87 extern int link
P((const char * fromname
, const char * toname
));
90 extern char * scheck
P((const char * string
, const char * format
));
92 static void addtt
P((time_t starttime
, int type
));
93 static int addtype
P((long gmtoff
, const char * abbr
, int isdst
,
94 int ttisstd
, int ttisgmt
));
95 static void leapadd
P((time_t t
, int positive
, int rolling
, int count
));
96 static void adjleap
P((void));
97 static void associate
P((void));
98 static int ciequal
P((const char * ap
, const char * bp
));
99 static void convert
P((long val
, char * buf
));
100 static void dolink
P((const char * fromfile
, const char * tofile
));
101 static void doabbr
P((char * abbr
, const char * format
,
102 const char * letters
, int isdst
));
103 static void eat
P((const char * name
, int num
));
104 static void eats
P((const char * name
, int num
,
105 const char * rname
, int rnum
));
106 static long eitol
P((int i
));
107 static void error
P((const char * message
));
108 static char ** getfields
P((char * buf
));
109 static long gethms
P((const char * string
, const char * errstrng
,
111 static void infile
P((const char * filename
));
112 static void inleap
P((char ** fields
, int nfields
));
113 static void inlink
P((char ** fields
, int nfields
));
114 static void inrule
P((char ** fields
, int nfields
));
115 static int inzcont
P((char ** fields
, int nfields
));
116 static int inzone
P((char ** fields
, int nfields
));
117 static int inzsub
P((char ** fields
, int nfields
, int iscont
));
118 static int itsabbr
P((const char * abbr
, const char * word
));
119 static int itsdir
P((const char * name
));
120 static int lowerit
P((int c
));
121 static char * memcheck
P((char * tocheck
));
122 static int mkdirs
P((char * filename
));
123 static void newabbr
P((const char * abbr
));
124 static long oadd
P((long t1
, long t2
));
125 static void outzone
P((const struct zone
* zp
, int ntzones
));
126 static void puttzcode
P((long code
, FILE * fp
));
127 static int rcomp
P((const void * leftp
, const void * rightp
));
128 static time_t rpytime
P((const struct rule
* rp
, int wantedy
));
129 static void rulesub
P((struct rule
* rp
,
130 const char * loyearp
, const char * hiyearp
,
131 const char * typep
, const char * monthp
,
132 const char * dayp
, const char * timep
));
133 static void setboundaries
P((void));
134 static time_t tadd
P((time_t t1
, long t2
));
135 static void usage
P((void));
136 static void writezone
P((const char * name
));
137 static int yearistype
P((int year
, const char * type
));
139 #if !(HAVE_STRERROR - 0)
140 static char * strerror
P((int));
141 #endif /* !(HAVE_STRERROR - 0) */
145 static const char * filename
;
148 static time_t max_time
;
150 static time_t min_time
;
153 static const char * rfilename
;
155 static const char * progname
;
169 ** Which fields are which on a Zone line.
177 #define ZF_TILMONTH 6
180 #define ZONE_MINFIELDS 5
181 #define ZONE_MAXFIELDS 9
184 ** Which fields are which on a Zone continuation line.
190 #define ZFC_TILYEAR 3
191 #define ZFC_TILMONTH 4
193 #define ZFC_TILTIME 6
194 #define ZONEC_MINFIELDS 3
195 #define ZONEC_MAXFIELDS 7
198 ** Which files are which on a Rule line.
210 #define RULE_FIELDS 10
213 ** Which fields are which on a Link line.
218 #define LINK_FIELDS 3
221 ** Which fields are which on a Leap line.
230 #define LEAP_FIELDS 7
240 static struct rule
* rules
;
241 static int nrules
; /* number of rules */
243 static struct zone
* zones
;
244 static int nzones
; /* number of zones */
247 const char * l_filename
;
253 static struct link
* links
;
261 static struct lookup
const * byword
P((const char * string
,
262 const struct lookup
* lp
));
264 static struct lookup
const line_codes
[] = {
272 static struct lookup
const mon_names
[] = {
273 { "January", TM_JANUARY
},
274 { "February", TM_FEBRUARY
},
275 { "March", TM_MARCH
},
276 { "April", TM_APRIL
},
280 { "August", TM_AUGUST
},
281 { "September", TM_SEPTEMBER
},
282 { "October", TM_OCTOBER
},
283 { "November", TM_NOVEMBER
},
284 { "December", TM_DECEMBER
},
288 static struct lookup
const wday_names
[] = {
289 { "Sunday", TM_SUNDAY
},
290 { "Monday", TM_MONDAY
},
291 { "Tuesday", TM_TUESDAY
},
292 { "Wednesday", TM_WEDNESDAY
},
293 { "Thursday", TM_THURSDAY
},
294 { "Friday", TM_FRIDAY
},
295 { "Saturday", TM_SATURDAY
},
299 static struct lookup
const lasts
[] = {
300 { "last-Sunday", TM_SUNDAY
},
301 { "last-Monday", TM_MONDAY
},
302 { "last-Tuesday", TM_TUESDAY
},
303 { "last-Wednesday", TM_WEDNESDAY
},
304 { "last-Thursday", TM_THURSDAY
},
305 { "last-Friday", TM_FRIDAY
},
306 { "last-Saturday", TM_SATURDAY
},
310 static struct lookup
const begin_years
[] = {
311 { "minimum", YR_MINIMUM
},
312 { "maximum", YR_MAXIMUM
},
316 static struct lookup
const end_years
[] = {
317 { "minimum", YR_MINIMUM
},
318 { "maximum", YR_MAXIMUM
},
323 static struct lookup
const leap_types
[] = {
325 { "Stationary", FALSE
},
329 static const int len_months
[2][MONSPERYEAR
] = {
330 { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
331 { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
334 static const int len_years
[2] = {
335 DAYSPERNYEAR
, DAYSPERLYEAR
338 static struct attype
{
341 } attypes
[TZ_MAX_TIMES
];
342 static long gmtoffs
[TZ_MAX_TYPES
];
343 static char isdsts
[TZ_MAX_TYPES
];
344 static unsigned char abbrinds
[TZ_MAX_TYPES
];
345 static char ttisstds
[TZ_MAX_TYPES
];
346 static char ttisgmts
[TZ_MAX_TYPES
];
347 static char chars
[TZ_MAX_CHARS
];
348 static time_t trans
[TZ_MAX_LEAPS
];
349 static long corr
[TZ_MAX_LEAPS
];
350 static char roll
[TZ_MAX_LEAPS
];
353 ** Memory allocation.
361 const char *e
= strerror(errno
);
363 (void) fprintf(stderr
, _("%s: Memory exhausted: %s\n"),
365 (void) exit(EXIT_FAILURE
);
370 #define emalloc(size) memcheck(imalloc(size))
371 #define erealloc(ptr, size) memcheck(irealloc((ptr), (size)))
372 #define ecpyalloc(ptr) memcheck(icpyalloc(ptr))
373 #define ecatalloc(oldp, newp) memcheck(icatalloc((oldp), (newp)))
379 #if !(HAVE_STRERROR - 0)
384 extern char * sys_errlist
[];
387 return (errnum
> 0 && errnum
<= sys_nerr
) ?
388 sys_errlist
[errnum
] : "Unknown system error";
390 #endif /* !(HAVE_STRERROR - 0) */
393 eats(name
, num
, rname
, rnum
)
394 const char * const name
;
396 const char * const rname
;
407 const char * const name
;
410 eats(name
, num
, (char *) NULL
, -1);
415 const char * const string
;
418 ** Match the format of "cc" to allow sh users to
419 ** zic ... 2>&1 | error -t "*" -v
422 (void) fprintf(stderr
, _("\"%s\", line %d: %s"),
423 filename
, linenum
, string
);
424 if (rfilename
!= NULL
)
425 (void) fprintf(stderr
, _(" (rule from \"%s\", line %d)"),
426 rfilename
, rlinenum
);
427 (void) fprintf(stderr
, "\n");
433 const char * const string
;
437 cp
= ecpyalloc("warning: ");
438 cp
= ecatalloc(cp
, string
);
447 (void) fprintf(stderr
, _("%s: usage is %s [ -s ] [ -v ] [ -l localtime ] [ -p posixrules ] [ -d directory ]\n\t[ -L leapseconds ] [ -y yearistype ] [ filename ... ]\n"),
449 (void) exit(EXIT_FAILURE
);
452 static const char * psxrules
;
453 static const char * lcltime
;
454 static const char * directory
;
455 static const char * leapsec
;
456 static const char * yitcommand
;
457 static int sflag
= FALSE
;
469 (void) umask(umask(S_IWGRP
| S_IWOTH
) | (S_IWGRP
| S_IWOTH
));
470 #endif /* defined unix */
472 (void) setlocale(LC_MESSAGES
, "");
474 (void) bindtextdomain(TZ_DOMAIN
, TZ_DOMAINDIR
);
475 #endif /* defined TEXTDOMAINDIR */
476 (void) textdomain(TZ_DOMAIN
);
477 #endif /* HAVE_GETTEXT - 0 */
479 while ((c
= getopt(argc
, argv
, "d:l:p:L:vsy:")) != EOF
)
484 if (directory
== NULL
)
487 (void) fprintf(stderr
,
488 _("%s: More than one -d option specified\n"),
490 (void) exit(EXIT_FAILURE
);
497 (void) fprintf(stderr
,
498 _("%s: More than one -l option specified\n"),
500 (void) exit(EXIT_FAILURE
);
504 if (psxrules
== NULL
)
507 (void) fprintf(stderr
,
508 _("%s: More than one -p option specified\n"),
510 (void) exit(EXIT_FAILURE
);
514 if (yitcommand
== NULL
)
517 (void) fprintf(stderr
,
518 _("%s: More than one -y option specified\n"),
520 (void) exit(EXIT_FAILURE
);
527 (void) fprintf(stderr
,
528 _("%s: More than one -L option specified\n"),
530 (void) exit(EXIT_FAILURE
);
540 if (optind
== argc
- 1 && strcmp(argv
[optind
], "=") == 0)
541 usage(); /* usage message by request */
542 if (directory
== NULL
)
544 if (yitcommand
== NULL
)
545 yitcommand
= "yearistype";
549 if (optind
< argc
&& leapsec
!= NULL
) {
554 for (i
= optind
; i
< argc
; ++i
)
557 (void) exit(EXIT_FAILURE
);
559 for (i
= 0; i
< nzones
; i
= j
) {
561 ** Find the next non-continuation zone entry.
563 for (j
= i
+ 1; j
< nzones
&& zones
[j
].z_name
== NULL
; ++j
)
565 outzone(&zones
[i
], j
- i
);
570 for (i
= 0; i
< nlinks
; ++i
)
571 dolink(links
[i
].l_from
, links
[i
].l_to
);
573 dolink(lcltime
, TZDEFAULT
);
574 if (psxrules
!= NULL
)
575 dolink(psxrules
, TZDEFRULES
);
576 return (errors
== 0) ? EXIT_SUCCESS
: EXIT_FAILURE
;
580 dolink(fromfile
, tofile
)
581 const char * const fromfile
;
582 const char * const tofile
;
584 register char * fromname
;
585 register char * toname
;
587 if (fromfile
[0] == '/')
588 fromname
= ecpyalloc(fromfile
);
590 fromname
= ecpyalloc(directory
);
591 fromname
= ecatalloc(fromname
, "/");
592 fromname
= ecatalloc(fromname
, fromfile
);
594 if (tofile
[0] == '/')
595 toname
= ecpyalloc(tofile
);
597 toname
= ecpyalloc(directory
);
598 toname
= ecatalloc(toname
, "/");
599 toname
= ecatalloc(toname
, tofile
);
602 ** We get to be careful here since
603 ** there's a fair chance of root running us.
606 (void) remove(toname
);
607 if (link(fromname
, toname
) != 0) {
608 if (mkdirs(toname
) != 0)
609 (void) exit(EXIT_FAILURE
);
610 if (link(fromname
, toname
) != 0) {
611 const char *e
= strerror(errno
);
613 (void) fprintf(stderr
,
614 _("%s: Can't link from %s to %s: %s\n"),
615 progname
, fromname
, toname
, e
);
616 (void) exit(EXIT_FAILURE
);
624 #define INT_MAX ((int) (((unsigned)~0)>>1))
625 #endif /* !defined INT_MAX */
628 #define INT_MIN ((int) ~(((unsigned)~0)>>1))
629 #endif /* !defined INT_MIN */
632 ** The tz file format currently allows at most 32-bit quantities.
633 ** This restriction should be removed before signed 32-bit values
634 ** wrap around in 2038, but unfortunately this will require a
635 ** change to the tz file format.
638 #define MAX_BITS_IN_FILE 32
639 #define TIME_T_BITS_IN_FILE ((TYPE_BIT(time_t) < MAX_BITS_IN_FILE) ? TYPE_BIT(time_t) : MAX_BITS_IN_FILE)
642 setboundaries
P((void))
644 if (TYPE_SIGNED(time_t)) {
645 min_time
= ~ (time_t) 0;
646 min_time
<<= TIME_T_BITS_IN_FILE
- 1;
647 max_time
= ~ (time_t) 0 - min_time
;
652 max_time
= 2 - sflag
;
653 max_time
<<= TIME_T_BITS_IN_FILE
- 1;
656 min_year
= TM_YEAR_BASE
+ gmtime(&min_time
)->tm_year
;
657 max_year
= TM_YEAR_BASE
+ gmtime(&max_time
)->tm_year
;
662 const char * const name
;
664 register char * myname
;
667 myname
= ecpyalloc(name
);
668 myname
= ecatalloc(myname
, "/.");
669 accres
= access(myname
, F_OK
);
675 ** Associate sets of rules with zones.
679 ** Sort by rule name.
687 return strcmp(((const struct rule
*) cp1
)->r_name
,
688 ((const struct rule
*) cp2
)->r_name
);
694 register struct zone
* zp
;
695 register struct rule
* rp
;
696 register int base
, out
;
700 (void) qsort((void *) rules
, (size_t) nrules
,
701 (size_t) sizeof *rules
, rcomp
);
702 for (i
= 0; i
< nrules
- 1; ++i
) {
703 if (strcmp(rules
[i
].r_name
,
704 rules
[i
+ 1].r_name
) != 0)
706 if (strcmp(rules
[i
].r_filename
,
707 rules
[i
+ 1].r_filename
) == 0)
709 eat(rules
[i
].r_filename
, rules
[i
].r_linenum
);
710 warning(_("same rule name in multiple files"));
711 eat(rules
[i
+ 1].r_filename
, rules
[i
+ 1].r_linenum
);
712 warning(_("same rule name in multiple files"));
713 for (j
= i
+ 2; j
< nrules
; ++j
) {
714 if (strcmp(rules
[i
].r_name
,
715 rules
[j
].r_name
) != 0)
717 if (strcmp(rules
[i
].r_filename
,
718 rules
[j
].r_filename
) == 0)
720 if (strcmp(rules
[i
+ 1].r_filename
,
721 rules
[j
].r_filename
) == 0)
728 for (i
= 0; i
< nzones
; ++i
) {
733 for (base
= 0; base
< nrules
; base
= out
) {
735 for (out
= base
+ 1; out
< nrules
; ++out
)
736 if (strcmp(rp
->r_name
, rules
[out
].r_name
) != 0)
738 for (i
= 0; i
< nzones
; ++i
) {
740 if (strcmp(zp
->z_rule
, rp
->r_name
) != 0)
743 zp
->z_nrules
= out
- base
;
746 for (i
= 0; i
< nzones
; ++i
) {
748 if (zp
->z_nrules
== 0) {
750 ** Maybe we have a local standard time offset.
752 eat(zp
->z_filename
, zp
->z_linenum
);
753 zp
->z_stdoff
= gethms(zp
->z_rule
, _("unruly zone"),
756 ** Note, though, that if there's no rule,
757 ** a '%s' in the format is a bad thing.
759 if (strchr(zp
->z_format
, '%') != 0)
760 error(_("%s in ruleless zone"));
764 (void) exit(EXIT_FAILURE
);
772 register char ** fields
;
774 register const struct lookup
* lp
;
775 register int nfields
;
776 register int wantcont
;
780 if (strcmp(name
, "-") == 0) {
781 name
= _("standard input");
783 } else if ((fp
= fopen(name
, "r")) == NULL
) {
784 const char *e
= strerror(errno
);
786 (void) fprintf(stderr
, _("%s: Can't open %s: %s\n"),
788 (void) exit(EXIT_FAILURE
);
791 for (num
= 1; ; ++num
) {
793 if (fgets(buf
, (int) sizeof buf
, fp
) != buf
)
795 cp
= strchr(buf
, '\n');
797 error(_("line too long"));
798 (void) exit(EXIT_FAILURE
);
801 fields
= getfields(buf
);
803 while (fields
[nfields
] != NULL
) {
806 if (strcmp(fields
[nfields
], "-") == 0)
807 fields
[nfields
] = &nada
;
812 } else if (wantcont
) {
813 wantcont
= inzcont(fields
, nfields
);
815 lp
= byword(fields
[0], line_codes
);
817 error(_("input line of unknown type"));
818 else switch ((int) (lp
->l_value
)) {
820 inrule(fields
, nfields
);
824 wantcont
= inzone(fields
, nfields
);
827 inlink(fields
, nfields
);
832 (void) fprintf(stderr
,
833 _("%s: Leap line in non leap seconds file %s\n"),
835 else inleap(fields
, nfields
);
838 default: /* "cannot happen" */
839 (void) fprintf(stderr
,
840 _("%s: panic: Invalid l_value %d\n"),
841 progname
, lp
->l_value
);
842 (void) exit(EXIT_FAILURE
);
845 ifree((char *) fields
);
848 (void) fprintf(stderr
, _("%s: Error reading %s\n"),
850 (void) exit(EXIT_FAILURE
);
852 if (fp
!= stdin
&& fclose(fp
)) {
853 const char *e
= strerror(errno
);
855 (void) fprintf(stderr
, _("%s: Error closing %s: %s\n"),
856 progname
, filename
, e
);
857 (void) exit(EXIT_FAILURE
);
860 error(_("expected continuation line not found"));
864 ** Convert a string of one of the forms
865 ** h -h hh:mm -hh:mm hh:mm:ss -hh:mm:ss
866 ** into a number of seconds.
867 ** A null string maps to zero.
868 ** Call error with errstring and return zero on errors.
872 gethms(string
, errstring
, signable
)
874 const char * const errstring
;
877 int hh
, mm
, ss
, sign
;
879 if (string
== NULL
|| *string
== '\0')
883 else if (*string
== '-') {
887 if (sscanf(string
, scheck(string
, "%d"), &hh
) == 1)
889 else if (sscanf(string
, scheck(string
, "%d:%d"), &hh
, &mm
) == 2)
891 else if (sscanf(string
, scheck(string
, "%d:%d:%d"),
892 &hh
, &mm
, &ss
) != 3) {
896 if (hh
< 0 || hh
>= HOURSPERDAY
||
897 mm
< 0 || mm
>= MINSPERHOUR
||
898 ss
< 0 || ss
> SECSPERMIN
) {
903 (eitol(hh
* MINSPERHOUR
+ mm
) *
904 eitol(SECSPERMIN
) + eitol(ss
));
908 inrule(fields
, nfields
)
909 register char ** const fields
;
912 static struct rule r
;
914 if (nfields
!= RULE_FIELDS
) {
915 error(_("wrong number of fields on Rule line"));
918 if (*fields
[RF_NAME
] == '\0') {
919 error(_("nameless rule"));
922 r
.r_filename
= filename
;
923 r
.r_linenum
= linenum
;
924 r
.r_stdoff
= gethms(fields
[RF_STDOFF
], _("invalid saved time"), TRUE
);
925 rulesub(&r
, fields
[RF_LOYEAR
], fields
[RF_HIYEAR
], fields
[RF_COMMAND
],
926 fields
[RF_MONTH
], fields
[RF_DAY
], fields
[RF_TOD
]);
927 r
.r_name
= ecpyalloc(fields
[RF_NAME
]);
928 r
.r_abbrvar
= ecpyalloc(fields
[RF_ABBRVAR
]);
929 rules
= (struct rule
*) (void *) erealloc((char *) rules
,
930 (int) ((nrules
+ 1) * sizeof *rules
));
935 inzone(fields
, nfields
)
936 register char ** const fields
;
942 if (nfields
< ZONE_MINFIELDS
|| nfields
> ZONE_MAXFIELDS
) {
943 error(_("wrong number of fields on Zone line"));
946 if (strcmp(fields
[ZF_NAME
], TZDEFAULT
) == 0 && lcltime
!= NULL
) {
947 buf
= erealloc(buf
, (int) (132 + strlen(TZDEFAULT
)));
949 _("\"Zone %s\" line and -l option are mutually exclusive"),
954 if (strcmp(fields
[ZF_NAME
], TZDEFRULES
) == 0 && psxrules
!= NULL
) {
955 buf
= erealloc(buf
, (int) (132 + strlen(TZDEFRULES
)));
957 _("\"Zone %s\" line and -p option are mutually exclusive"),
962 for (i
= 0; i
< nzones
; ++i
)
963 if (zones
[i
].z_name
!= NULL
&&
964 strcmp(zones
[i
].z_name
, fields
[ZF_NAME
]) == 0) {
965 buf
= erealloc(buf
, (int) (132 +
966 strlen(fields
[ZF_NAME
]) +
967 strlen(zones
[i
].z_filename
)));
969 _("duplicate zone name %s (file \"%s\", line %d)"),
976 return inzsub(fields
, nfields
, FALSE
);
980 inzcont(fields
, nfields
)
981 register char ** const fields
;
984 if (nfields
< ZONEC_MINFIELDS
|| nfields
> ZONEC_MAXFIELDS
) {
985 error(_("wrong number of fields on Zone continuation line"));
988 return inzsub(fields
, nfields
, TRUE
);
992 inzsub(fields
, nfields
, iscont
)
993 register char ** const fields
;
998 static struct zone z
;
999 register int i_gmtoff
, i_rule
, i_format
;
1000 register int i_untilyear
, i_untilmonth
;
1001 register int i_untilday
, i_untiltime
;
1002 register int hasuntil
;
1005 i_gmtoff
= ZFC_GMTOFF
;
1007 i_format
= ZFC_FORMAT
;
1008 i_untilyear
= ZFC_TILYEAR
;
1009 i_untilmonth
= ZFC_TILMONTH
;
1010 i_untilday
= ZFC_TILDAY
;
1011 i_untiltime
= ZFC_TILTIME
;
1014 i_gmtoff
= ZF_GMTOFF
;
1016 i_format
= ZF_FORMAT
;
1017 i_untilyear
= ZF_TILYEAR
;
1018 i_untilmonth
= ZF_TILMONTH
;
1019 i_untilday
= ZF_TILDAY
;
1020 i_untiltime
= ZF_TILTIME
;
1021 z
.z_name
= ecpyalloc(fields
[ZF_NAME
]);
1023 z
.z_filename
= filename
;
1024 z
.z_linenum
= linenum
;
1025 z
.z_gmtoff
= gethms(fields
[i_gmtoff
], _("invalid GMT offset"), TRUE
);
1026 if ((cp
= strchr(fields
[i_format
], '%')) != 0) {
1027 if (*++cp
!= 's' || strchr(cp
, '%') != 0) {
1028 error(_("invalid abbreviation format"));
1032 z
.z_rule
= ecpyalloc(fields
[i_rule
]);
1033 z
.z_format
= ecpyalloc(fields
[i_format
]);
1034 hasuntil
= nfields
> i_untilyear
;
1036 z
.z_untilrule
.r_filename
= filename
;
1037 z
.z_untilrule
.r_linenum
= linenum
;
1038 rulesub(&z
.z_untilrule
,
1039 fields
[i_untilyear
],
1042 (nfields
> i_untilmonth
) ?
1043 fields
[i_untilmonth
] : "Jan",
1044 (nfields
> i_untilday
) ? fields
[i_untilday
] : "1",
1045 (nfields
> i_untiltime
) ? fields
[i_untiltime
] : "0");
1046 z
.z_untiltime
= rpytime(&z
.z_untilrule
,
1047 z
.z_untilrule
.r_loyear
);
1048 if (iscont
&& nzones
> 0 &&
1049 z
.z_untiltime
> min_time
&&
1050 z
.z_untiltime
< max_time
&&
1051 zones
[nzones
- 1].z_untiltime
> min_time
&&
1052 zones
[nzones
- 1].z_untiltime
< max_time
&&
1053 zones
[nzones
- 1].z_untiltime
>= z
.z_untiltime
) {
1054 error(_("Zone continuation line end time is not after end time of previous line"));
1058 zones
= (struct zone
*) (void *) erealloc((char *) zones
,
1059 (int) ((nzones
+ 1) * sizeof *zones
));
1060 zones
[nzones
++] = z
;
1062 ** If there was an UNTIL field on this line,
1063 ** there's more information about the zone on the next line.
1069 inleap(fields
, nfields
)
1070 register char ** const fields
;
1073 register const char * cp
;
1074 register const struct lookup
* lp
;
1076 int year
, month
, day
;
1080 if (nfields
!= LEAP_FIELDS
) {
1081 error(_("wrong number of fields on Leap line"));
1085 cp
= fields
[LP_YEAR
];
1086 if (sscanf(cp
, scheck(cp
, "%d"), &year
) != 1) {
1090 error(_("invalid leaping year"));
1096 i
= len_years
[isleap(j
)];
1100 i
= -len_years
[isleap(j
)];
1102 dayoff
= oadd(dayoff
, eitol(i
));
1104 if ((lp
= byword(fields
[LP_MONTH
], mon_names
)) == NULL
) {
1105 error(_("invalid month name"));
1108 month
= lp
->l_value
;
1110 while (j
!= month
) {
1111 i
= len_months
[isleap(year
)][j
];
1112 dayoff
= oadd(dayoff
, eitol(i
));
1115 cp
= fields
[LP_DAY
];
1116 if (sscanf(cp
, scheck(cp
, "%d"), &day
) != 1 ||
1117 day
<= 0 || day
> len_months
[isleap(year
)][month
]) {
1118 error(_("invalid day of month"));
1121 dayoff
= oadd(dayoff
, eitol(day
- 1));
1122 if (dayoff
< 0 && !TYPE_SIGNED(time_t)) {
1123 error(_("time before zero"));
1126 t
= (time_t) dayoff
* SECSPERDAY
;
1128 ** Cheap overflow check.
1130 if (t
/ SECSPERDAY
!= dayoff
) {
1131 error(_("time overflow"));
1134 tod
= gethms(fields
[LP_TIME
], _("invalid time of day"), FALSE
);
1135 cp
= fields
[LP_CORR
];
1137 register int positive
;
1140 if (strcmp(cp
, "") == 0) { /* infile() turns "-" into "" */
1143 } else if (strcmp(cp
, "--") == 0) {
1146 } else if (strcmp(cp
, "+") == 0) {
1149 } else if (strcmp(cp
, "++") == 0) {
1153 error(_("illegal CORRECTION field on Leap line"));
1156 if ((lp
= byword(fields
[LP_ROLL
], leap_types
)) == NULL
) {
1157 error(_("illegal Rolling/Stationary field on Leap line"));
1160 leapadd(tadd(t
, tod
), positive
, lp
->l_value
, count
);
1165 inlink(fields
, nfields
)
1166 register char ** const fields
;
1171 if (nfields
!= LINK_FIELDS
) {
1172 error(_("wrong number of fields on Link line"));
1175 if (*fields
[LF_FROM
] == '\0') {
1176 error(_("blank FROM field on Link line"));
1179 if (*fields
[LF_TO
] == '\0') {
1180 error(_("blank TO field on Link line"));
1183 l
.l_filename
= filename
;
1184 l
.l_linenum
= linenum
;
1185 l
.l_from
= ecpyalloc(fields
[LF_FROM
]);
1186 l
.l_to
= ecpyalloc(fields
[LF_TO
]);
1187 links
= (struct link
*) (void *) erealloc((char *) links
,
1188 (int) ((nlinks
+ 1) * sizeof *links
));
1189 links
[nlinks
++] = l
;
1193 rulesub(rp
, loyearp
, hiyearp
, typep
, monthp
, dayp
, timep
)
1194 register struct rule
* const rp
;
1195 const char * const loyearp
;
1196 const char * const hiyearp
;
1197 const char * const typep
;
1198 const char * const monthp
;
1199 const char * const dayp
;
1200 const char * const timep
;
1202 register const struct lookup
* lp
;
1203 register const char * cp
;
1207 if ((lp
= byword(monthp
, mon_names
)) == NULL
) {
1208 error(_("invalid month name"));
1211 rp
->r_month
= lp
->l_value
;
1212 rp
->r_todisstd
= FALSE
;
1213 rp
->r_todisgmt
= FALSE
;
1214 dp
= ecpyalloc(timep
);
1216 ep
= dp
+ strlen(dp
) - 1;
1217 switch (lowerit(*ep
)) {
1218 case 's': /* Standard */
1219 rp
->r_todisstd
= TRUE
;
1220 rp
->r_todisgmt
= FALSE
;
1223 case 'w': /* Wall */
1224 rp
->r_todisstd
= FALSE
;
1225 rp
->r_todisgmt
= FALSE
;
1227 case 'g': /* Greenwich */
1228 case 'u': /* Universal */
1229 case 'z': /* Zulu */
1230 rp
->r_todisstd
= TRUE
;
1231 rp
->r_todisgmt
= TRUE
;
1236 rp
->r_tod
= gethms(dp
, _("invalid time of day"), FALSE
);
1242 lp
= byword(cp
, begin_years
);
1243 if (lp
!= NULL
) switch ((int) lp
->l_value
) {
1245 rp
->r_loyear
= INT_MIN
;
1248 rp
->r_loyear
= INT_MAX
;
1250 default: /* "cannot happen" */
1251 (void) fprintf(stderr
,
1252 _("%s: panic: Invalid l_value %d\n"),
1253 progname
, lp
->l_value
);
1254 (void) exit(EXIT_FAILURE
);
1255 } else if (sscanf(cp
, scheck(cp
, "%d"), &rp
->r_loyear
) != 1) {
1256 error(_("invalid starting year"));
1260 if ((lp
= byword(cp
, end_years
)) != NULL
) switch ((int) lp
->l_value
) {
1262 rp
->r_hiyear
= INT_MIN
;
1265 rp
->r_hiyear
= INT_MAX
;
1268 rp
->r_hiyear
= rp
->r_loyear
;
1270 default: /* "cannot happen" */
1271 (void) fprintf(stderr
,
1272 _("%s: panic: Invalid l_value %d\n"),
1273 progname
, lp
->l_value
);
1274 (void) exit(EXIT_FAILURE
);
1275 } else if (sscanf(cp
, scheck(cp
, "%d"), &rp
->r_hiyear
) != 1) {
1276 error(_("invalid ending year"));
1279 if (rp
->r_loyear
> rp
->r_hiyear
) {
1280 error(_("starting year greater than ending year"));
1284 rp
->r_yrtype
= NULL
;
1286 if (rp
->r_loyear
== rp
->r_hiyear
) {
1287 error(_("typed single year"));
1290 rp
->r_yrtype
= ecpyalloc(typep
);
1294 ** Accept things such as:
1300 dp
= ecpyalloc(dayp
);
1301 if ((lp
= byword(dp
, lasts
)) != NULL
) {
1302 rp
->r_dycode
= DC_DOWLEQ
;
1303 rp
->r_wday
= lp
->l_value
;
1304 rp
->r_dayofmonth
= len_months
[1][rp
->r_month
];
1306 if ((ep
= strchr(dp
, '<')) != 0)
1307 rp
->r_dycode
= DC_DOWLEQ
;
1308 else if ((ep
= strchr(dp
, '>')) != 0)
1309 rp
->r_dycode
= DC_DOWGEQ
;
1312 rp
->r_dycode
= DC_DOM
;
1314 if (rp
->r_dycode
!= DC_DOM
) {
1317 error(_("invalid day of month"));
1321 if ((lp
= byword(dp
, wday_names
)) == NULL
) {
1322 error(_("invalid weekday name"));
1326 rp
->r_wday
= lp
->l_value
;
1328 if (sscanf(ep
, scheck(ep
, "%d"), &rp
->r_dayofmonth
) != 1 ||
1329 rp
->r_dayofmonth
<= 0 ||
1330 (rp
->r_dayofmonth
> len_months
[1][rp
->r_month
])) {
1331 error(_("invalid day of month"));
1345 register long shift
;
1347 for (i
= 0, shift
= 24; i
< 4; ++i
, shift
-= 8)
1348 buf
[i
] = val
>> shift
;
1359 (void) fwrite((void *) buf
, (size_t) sizeof buf
, (size_t) 1, fp
);
1367 if (((struct attype
*) avp
)->at
< ((struct attype
*) bvp
)->at
)
1369 else if (((struct attype
*) avp
)->at
> ((struct attype
*) bvp
)->at
)
1376 const char * const name
;
1380 static char * fullname
;
1381 static struct tzhead tzh
;
1382 time_t ats
[TZ_MAX_TIMES
];
1383 unsigned char types
[TZ_MAX_TIMES
];
1389 (void) qsort((void *) attypes
, (size_t) timecnt
,
1390 (size_t) sizeof *attypes
, atcomp
);
1401 while (attypes
[fromi
].type
== 0)
1402 ++fromi
; /* handled by default rule */
1403 for ( ; fromi
< timecnt
; ++fromi
) {
1405 && ((attypes
[fromi
].at
1406 + gmtoffs
[attypes
[toi
- 1].type
])
1407 <= (attypes
[toi
- 1].at
1408 + gmtoffs
[toi
== 1 ? 0
1409 : attypes
[toi
- 2].type
]))) {
1410 attypes
[toi
- 1].type
= attypes
[fromi
].type
;
1414 attypes
[toi
- 1].type
!= attypes
[fromi
].type
)
1415 attypes
[toi
++] = attypes
[fromi
];
1422 for (i
= 0; i
< timecnt
; ++i
) {
1423 ats
[i
] = attypes
[i
].at
;
1424 types
[i
] = attypes
[i
].type
;
1426 fullname
= erealloc(fullname
,
1427 (int) (strlen(directory
) + 1 + strlen(name
) + 1));
1428 (void) sprintf(fullname
, "%s/%s", directory
, name
);
1430 ** Remove old file, if any, to snap links.
1432 if (!itsdir(fullname
) && remove(fullname
) != 0 && errno
!= ENOENT
) {
1433 const char *e
= strerror(errno
);
1435 (void) fprintf(stderr
, _("%s: Can't remove %s: %s\n"),
1436 progname
, fullname
, e
);
1437 (void) exit(EXIT_FAILURE
);
1439 if ((fp
= fopen(fullname
, "wb")) == NULL
) {
1440 if (mkdirs(fullname
) != 0)
1441 (void) exit(EXIT_FAILURE
);
1442 if ((fp
= fopen(fullname
, "wb")) == NULL
) {
1443 const char *e
= strerror(errno
);
1445 (void) fprintf(stderr
, _("%s: Can't create %s: %s\n"),
1446 progname
, fullname
, e
);
1447 (void) exit(EXIT_FAILURE
);
1450 convert(eitol(typecnt
), tzh
.tzh_ttisgmtcnt
);
1451 convert(eitol(typecnt
), tzh
.tzh_ttisstdcnt
);
1452 convert(eitol(leapcnt
), tzh
.tzh_leapcnt
);
1453 convert(eitol(timecnt
), tzh
.tzh_timecnt
);
1454 convert(eitol(typecnt
), tzh
.tzh_typecnt
);
1455 convert(eitol(charcnt
), tzh
.tzh_charcnt
);
1456 #define DO(field) (void) fwrite((void *) tzh.field, (size_t) sizeof tzh.field, (size_t) 1, fp)
1465 for (i
= 0; i
< timecnt
; ++i
) {
1468 if (ats
[i
] >= trans
[j
]) {
1469 ats
[i
] = tadd(ats
[i
], corr
[j
]);
1472 puttzcode((long) ats
[i
], fp
);
1475 (void) fwrite((void *) types
, (size_t) sizeof types
[0],
1476 (size_t) timecnt
, fp
);
1477 for (i
= 0; i
< typecnt
; ++i
) {
1478 puttzcode((long) gmtoffs
[i
], fp
);
1479 (void) putc(isdsts
[i
], fp
);
1480 (void) putc(abbrinds
[i
], fp
);
1483 (void) fwrite((void *) chars
, (size_t) sizeof chars
[0],
1484 (size_t) charcnt
, fp
);
1485 for (i
= 0; i
< leapcnt
; ++i
) {
1487 if (timecnt
== 0 || trans
[i
] < ats
[0]) {
1490 if (++j
>= typecnt
) {
1496 while (j
< timecnt
&& trans
[i
] >= ats
[j
])
1500 puttzcode((long) tadd(trans
[i
], -gmtoffs
[j
]), fp
);
1501 } else puttzcode((long) trans
[i
], fp
);
1502 puttzcode((long) corr
[i
], fp
);
1504 for (i
= 0; i
< typecnt
; ++i
)
1505 (void) putc(ttisstds
[i
], fp
);
1506 for (i
= 0; i
< typecnt
; ++i
)
1507 (void) putc(ttisgmts
[i
], fp
);
1508 if (ferror(fp
) || fclose(fp
)) {
1509 (void) fprintf(stderr
, _("%s: Error writing %s\n"),
1510 progname
, fullname
);
1511 (void) exit(EXIT_FAILURE
);
1516 doabbr(abbr
, format
, letters
, isdst
)
1518 const char * const format
;
1519 const char * const letters
;
1522 if (strchr(format
, '/') == NULL
) {
1523 if (letters
== NULL
)
1524 (void) strcpy(abbr
, format
);
1525 else (void) sprintf(abbr
, format
, letters
);
1527 (void) strcpy(abbr
, strchr(format
, '/') + 1);
1529 (void) strcpy(abbr
, format
);
1530 *strchr(abbr
, '/') = '\0';
1535 outzone(zpfirst
, zonecount
)
1536 const struct zone
* const zpfirst
;
1537 const int zonecount
;
1539 register const struct zone
* zp
;
1540 register struct rule
* rp
;
1542 register int usestart
, useuntil
;
1543 register time_t starttime
, untiltime
;
1544 register long gmtoff
;
1545 register long stdoff
;
1547 register long startoff
;
1548 register int startttisstd
;
1549 register int startttisgmt
;
1551 char startbuf
[BUFSIZ
];
1553 INITIALIZE(untiltime
);
1554 INITIALIZE(starttime
);
1556 ** Now. . .finally. . .generate some useful data!
1562 ** A guess that may well be corrected later.
1566 ** Thanks to Earl Chew (earl@dnd.icp.nec.com.au)
1567 ** for noting the need to unconditionally initialize startttisstd.
1569 startttisstd
= FALSE
;
1570 startttisgmt
= FALSE
;
1571 for (i
= 0; i
< zonecount
; ++i
) {
1573 usestart
= i
> 0 && (zp
- 1)->z_untiltime
> min_time
;
1574 useuntil
= i
< (zonecount
- 1);
1575 if (useuntil
&& zp
->z_untiltime
<= min_time
)
1577 gmtoff
= zp
->z_gmtoff
;
1578 eat(zp
->z_filename
, zp
->z_linenum
);
1580 startoff
= zp
->z_gmtoff
;
1581 if (zp
->z_nrules
== 0) {
1582 stdoff
= zp
->z_stdoff
;
1583 doabbr(startbuf
, zp
->z_format
,
1584 (char *) NULL
, stdoff
!= 0);
1585 type
= addtype(oadd(zp
->z_gmtoff
, stdoff
),
1586 startbuf
, stdoff
!= 0, startttisstd
,
1589 addtt(starttime
, type
);
1592 else if (stdoff
!= 0)
1593 addtt(min_time
, type
);
1594 } else for (year
= min_year
; year
<= max_year
; ++year
) {
1595 if (useuntil
&& year
> zp
->z_untilrule
.r_hiyear
)
1598 ** Mark which rules to do in the current year.
1599 ** For those to do, calculate rpytime(rp, year);
1601 for (j
= 0; j
< zp
->z_nrules
; ++j
) {
1602 rp
= &zp
->z_rules
[j
];
1603 eats(zp
->z_filename
, zp
->z_linenum
,
1604 rp
->r_filename
, rp
->r_linenum
);
1605 rp
->r_todo
= year
>= rp
->r_loyear
&&
1606 year
<= rp
->r_hiyear
&&
1607 yearistype(year
, rp
->r_yrtype
);
1609 rp
->r_temp
= rpytime(rp
, year
);
1613 register time_t jtime
, ktime
;
1614 register long offset
;
1620 ** Turn untiltime into GMT
1621 ** assuming the current gmtoff and
1624 untiltime
= zp
->z_untiltime
;
1625 if (!zp
->z_untilrule
.r_todisgmt
)
1626 untiltime
= tadd(untiltime
,
1628 if (!zp
->z_untilrule
.r_todisstd
)
1629 untiltime
= tadd(untiltime
,
1633 ** Find the rule (of those to do, if any)
1634 ** that takes effect earliest in the year.
1637 for (j
= 0; j
< zp
->z_nrules
; ++j
) {
1638 rp
= &zp
->z_rules
[j
];
1641 eats(zp
->z_filename
, zp
->z_linenum
,
1642 rp
->r_filename
, rp
->r_linenum
);
1643 offset
= rp
->r_todisgmt
? 0 : gmtoff
;
1644 if (!rp
->r_todisstd
)
1645 offset
= oadd(offset
, stdoff
);
1647 if (jtime
== min_time
||
1650 jtime
= tadd(jtime
, -offset
);
1651 if (k
< 0 || jtime
< ktime
) {
1657 break; /* go on to next year */
1658 rp
= &zp
->z_rules
[k
];
1660 if (useuntil
&& ktime
>= untiltime
)
1662 stdoff
= rp
->r_stdoff
;
1663 if (usestart
&& ktime
== starttime
)
1666 if (ktime
< starttime
) {
1667 startoff
= oadd(zp
->z_gmtoff
,
1669 doabbr(startbuf
, zp
->z_format
,
1674 if (*startbuf
== '\0' &&
1675 startoff
== oadd(zp
->z_gmtoff
,
1677 doabbr(startbuf
, zp
->z_format
,
1682 eats(zp
->z_filename
, zp
->z_linenum
,
1683 rp
->r_filename
, rp
->r_linenum
);
1684 doabbr(buf
, zp
->z_format
, rp
->r_abbrvar
,
1686 offset
= oadd(zp
->z_gmtoff
, rp
->r_stdoff
);
1687 type
= addtype(offset
, buf
, rp
->r_stdoff
!= 0,
1688 rp
->r_todisstd
, rp
->r_todisgmt
);
1693 if (*startbuf
== '\0' &&
1694 zp
->z_format
!= NULL
&&
1695 strchr(zp
->z_format
, '%') == NULL
&&
1696 strchr(zp
->z_format
, '/') == NULL
)
1697 (void) strcpy(startbuf
, zp
->z_format
);
1698 eat(zp
->z_filename
, zp
->z_linenum
);
1699 if (*startbuf
== '\0')
1700 error(_("can't determine time zone abbrevation to use just after until time"));
1701 else addtt(starttime
,
1702 addtype(startoff
, startbuf
,
1703 startoff
!= zp
->z_gmtoff
,
1708 ** Now we may get to set starttime for the next zone line.
1711 startttisstd
= zp
->z_untilrule
.r_todisstd
;
1712 startttisgmt
= zp
->z_untilrule
.r_todisgmt
;
1713 starttime
= zp
->z_untiltime
;
1715 starttime
= tadd(starttime
, -stdoff
);
1717 starttime
= tadd(starttime
, -gmtoff
);
1720 writezone(zpfirst
->z_name
);
1724 addtt(starttime
, type
)
1725 const time_t starttime
;
1728 if (timecnt
>= TZ_MAX_TIMES
) {
1729 error(_("too many transitions?!"));
1730 (void) exit(EXIT_FAILURE
);
1732 attypes
[timecnt
].at
= starttime
;
1733 attypes
[timecnt
].type
= type
;
1738 addtype(gmtoff
, abbr
, isdst
, ttisstd
, ttisgmt
)
1740 const char * const abbr
;
1747 if (isdst
!= TRUE
&& isdst
!= FALSE
) {
1748 error(_("internal error - addtype called with bad isdst"));
1749 (void) exit(EXIT_FAILURE
);
1751 if (ttisstd
!= TRUE
&& ttisstd
!= FALSE
) {
1752 error(_("internal error - addtype called with bad ttisstd"));
1753 (void) exit(EXIT_FAILURE
);
1755 if (ttisgmt
!= TRUE
&& ttisgmt
!= FALSE
) {
1756 error(_("internal error - addtype called with bad ttisgmt"));
1757 (void) exit(EXIT_FAILURE
);
1760 ** See if there's already an entry for this zone type.
1761 ** If so, just return its index.
1763 for (i
= 0; i
< typecnt
; ++i
) {
1764 if (gmtoff
== gmtoffs
[i
] && isdst
== isdsts
[i
] &&
1765 strcmp(abbr
, &chars
[abbrinds
[i
]]) == 0 &&
1766 ttisstd
== ttisstds
[i
] &&
1767 ttisgmt
== ttisgmts
[i
])
1771 ** There isn't one; add a new one, unless there are already too
1774 if (typecnt
>= TZ_MAX_TYPES
) {
1775 error(_("too many local time types"));
1776 (void) exit(EXIT_FAILURE
);
1778 gmtoffs
[i
] = gmtoff
;
1780 ttisstds
[i
] = ttisstd
;
1781 ttisgmts
[i
] = ttisgmt
;
1783 for (j
= 0; j
< charcnt
; ++j
)
1784 if (strcmp(&chars
[j
], abbr
) == 0)
1794 leapadd(t
, positive
, rolling
, count
)
1802 if (leapcnt
+ (positive
? count
: 1) > TZ_MAX_LEAPS
) {
1803 error(_("too many leap seconds"));
1804 (void) exit(EXIT_FAILURE
);
1806 for (i
= 0; i
< leapcnt
; ++i
)
1807 if (t
<= trans
[i
]) {
1808 if (t
== trans
[i
]) {
1809 error(_("repeated leap second moment"));
1810 (void) exit(EXIT_FAILURE
);
1815 for (j
= leapcnt
; j
> i
; --j
) {
1816 trans
[j
] = trans
[j
- 1];
1817 corr
[j
] = corr
[j
- 1];
1818 roll
[j
] = roll
[j
- 1];
1821 corr
[i
] = positive
? 1L : eitol(-count
);
1824 } while (positive
&& --count
!= 0);
1831 register long last
= 0;
1834 ** propagate leap seconds forward
1836 for (i
= 0; i
< leapcnt
; ++i
) {
1837 trans
[i
] = tadd(trans
[i
], last
);
1838 last
= corr
[i
] += last
;
1843 yearistype(year
, type
)
1845 const char * const type
;
1850 if (type
== NULL
|| *type
== '\0')
1852 buf
= erealloc(buf
, (int) (132 + strlen(yitcommand
) + strlen(type
)));
1853 (void) sprintf(buf
, "%s %d %s", yitcommand
, year
, type
);
1854 result
= system(buf
);
1857 if (result
== (1 << 8))
1859 error(_("Wild result from command execution"));
1860 (void) fprintf(stderr
, _("%s: command was '%s', result was %d\n"),
1861 progname
, buf
, result
);
1863 (void) exit(EXIT_FAILURE
);
1870 a
= (unsigned char) a
;
1871 return (isascii(a
) && isupper(a
)) ? tolower(a
) : a
;
1875 ciequal(ap
, bp
) /* case-insensitive equality */
1876 register const char * ap
;
1877 register const char * bp
;
1879 while (lowerit(*ap
) == lowerit(*bp
++))
1887 register const char * abbr
;
1888 register const char * word
;
1890 if (lowerit(*abbr
) != lowerit(*word
))
1893 while (*++abbr
!= '\0')
1897 } while (lowerit(*word
++) != lowerit(*abbr
));
1901 static const struct lookup
*
1903 register const char * const word
;
1904 register const struct lookup
* const table
;
1906 register const struct lookup
* foundlp
;
1907 register const struct lookup
* lp
;
1909 if (word
== NULL
|| table
== NULL
)
1912 ** Look for exact match.
1914 for (lp
= table
; lp
->l_word
!= NULL
; ++lp
)
1915 if (ciequal(word
, lp
->l_word
))
1918 ** Look for inexact match.
1921 for (lp
= table
; lp
->l_word
!= NULL
; ++lp
)
1922 if (itsabbr(word
, lp
->l_word
))
1923 if (foundlp
== NULL
)
1925 else return NULL
; /* multiple inexact matches */
1934 register char ** array
;
1939 array
= (char **) (void *)
1940 emalloc((int) ((strlen(cp
) + 1) * sizeof *array
));
1943 while (isascii(*cp
) && isspace((unsigned char) *cp
))
1945 if (*cp
== '\0' || *cp
== '#')
1947 array
[nsubs
++] = dp
= cp
;
1949 if ((*dp
= *cp
++) != '"')
1951 else while ((*dp
= *cp
++) != '"')
1954 else error(_("Odd number of quotation marks"));
1955 } while (*cp
!= '\0' && *cp
!= '#' &&
1956 (!isascii(*cp
) || !isspace((unsigned char) *cp
)));
1957 if (isascii(*cp
) && isspace((unsigned char) *cp
))
1961 array
[nsubs
] = NULL
;
1973 if ((t2
> 0 && t
<= t1
) || (t2
< 0 && t
>= t1
)) {
1974 error(_("time overflow"));
1975 (void) exit(EXIT_FAILURE
);
1987 if (t1
== max_time
&& t2
> 0)
1989 if (t1
== min_time
&& t2
< 0)
1992 if ((t2
> 0 && t
<= t1
) || (t2
< 0 && t
>= t1
)) {
1993 error(_("time overflow"));
1994 (void) exit(EXIT_FAILURE
);
2000 ** Given a rule, and a year, compute the date - in seconds since January 1,
2001 ** 1970, 00:00 LOCAL time - in that year that the rule refers to.
2005 rpytime(rp
, wantedy
)
2006 register const struct rule
* const rp
;
2007 register const int wantedy
;
2009 register int y
, m
, i
;
2010 register long dayoff
; /* with a nod to Margaret O. */
2013 if (wantedy
== INT_MIN
)
2015 if (wantedy
== INT_MAX
)
2020 while (wantedy
!= y
) {
2022 i
= len_years
[isleap(y
)];
2026 i
= -len_years
[isleap(y
)];
2028 dayoff
= oadd(dayoff
, eitol(i
));
2030 while (m
!= rp
->r_month
) {
2031 i
= len_months
[isleap(y
)][m
];
2032 dayoff
= oadd(dayoff
, eitol(i
));
2035 i
= rp
->r_dayofmonth
;
2036 if (m
== TM_FEBRUARY
&& i
== 29 && !isleap(y
)) {
2037 if (rp
->r_dycode
== DC_DOWLEQ
)
2040 error(_("use of 2/29 in non leap-year"));
2041 (void) exit(EXIT_FAILURE
);
2045 dayoff
= oadd(dayoff
, eitol(i
));
2046 if (rp
->r_dycode
== DC_DOWGEQ
|| rp
->r_dycode
== DC_DOWLEQ
) {
2049 #define LDAYSPERWEEK ((long) DAYSPERWEEK)
2050 wday
= eitol(EPOCH_WDAY
);
2052 ** Don't trust mod of negative numbers.
2055 wday
= (wday
+ dayoff
) % LDAYSPERWEEK
;
2057 wday
-= ((-dayoff
) % LDAYSPERWEEK
);
2059 wday
+= LDAYSPERWEEK
;
2061 while (wday
!= eitol(rp
->r_wday
))
2062 if (rp
->r_dycode
== DC_DOWGEQ
) {
2063 dayoff
= oadd(dayoff
, (long) 1);
2064 if (++wday
>= LDAYSPERWEEK
)
2068 dayoff
= oadd(dayoff
, (long) -1);
2070 wday
= LDAYSPERWEEK
- 1;
2073 if (i
< 0 || i
>= len_months
[isleap(y
)][m
]) {
2074 error(_("no day in month matches rule"));
2075 (void) exit(EXIT_FAILURE
);
2078 if (dayoff
< 0 && !TYPE_SIGNED(time_t))
2080 t
= (time_t) dayoff
* SECSPERDAY
;
2082 ** Cheap overflow check.
2084 if (t
/ SECSPERDAY
!= dayoff
)
2085 return (dayoff
> 0) ? max_time
: min_time
;
2086 return tadd(t
, rp
->r_tod
);
2091 const char * const string
;
2095 i
= strlen(string
) + 1;
2096 if (charcnt
+ i
> TZ_MAX_CHARS
) {
2097 error(_("too many, or too long, time zone abbreviations"));
2098 (void) exit(EXIT_FAILURE
);
2100 (void) strcpy(&chars
[charcnt
], string
);
2101 charcnt
+= eitol(i
);
2106 char * const argname
;
2108 register char * name
;
2111 if (argname
== NULL
|| *argname
== '\0')
2113 cp
= name
= ecpyalloc(argname
);
2114 while ((cp
= strchr(cp
+ 1, '/')) != 0) {
2118 ** DOS drive specifier?
2120 if (isalpha((unsigned char) name
[0]) &&
2121 name
[1] == ':' && name
[2] == '\0') {
2125 #endif /* !defined unix */
2126 if (!itsdir(name
)) {
2128 ** It doesn't seem to exist, so we try to create it.
2130 if (mkdir(name
, 0755) != 0) {
2131 const char *e
= strerror(errno
);
2133 (void) fprintf(stderr
,
2134 _("%s: Can't create directory %s: %s\n"),
2153 if ((i
< 0 && l
>= 0) || (i
== 0 && l
!= 0) || (i
> 0 && l
<= 0)) {
2154 (void) fprintf(stderr
,
2155 _("%s: %d did not sign extend correctly\n"),
2157 (void) exit(EXIT_FAILURE
);
2163 ** UNIX was a registered trademark of UNIX System Laboratories in 1993.