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57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/* %W% */
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/*
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** Information about time zone files.
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*/
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#ifndef TZDIR
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#define TZDIR "/etc/tzdir" /* Time zone object file directory */
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#endif
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#ifndef TZDEFAULT
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#define TZDEFAULT "localtime"
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#endif
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struct ttinfo { /* time type information */
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long tt_gmtoff; /* GMT offset in seconds */
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int tt_isdst; /* used to set tm_isdst */
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unsigned int tt_abbrind; /* abbreviation list index */
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};
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/*
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** Each file begins with. . .
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*/
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struct tzhead {
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char tzh_reserved[14]; /* reserved for future use */
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unsigned short tzh_timecnt; /* number of transition times */
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unsigned short tzh_typecnt; /* number of local time types */
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unsigned short tzh_charcnt; /* number of abbr. chars */
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};
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/*
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** . . .followed by. . .
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**
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** tzh_timecnt (long)s transition times as returned by time(3)
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** tzh_timecnt (unsigned char)s types of local time starting at above
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** tzh_typecnt (struct ttinfo)s information for each time type
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** tzh_charcnt (char)s '\0'-terminated zone abbreviaton strings
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*/
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/*
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** In the current implementation, "settz()" refuses to deal with files that
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** exceed any of the limits below.
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*/
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#ifndef TZ_MAX_TIMES
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#define TZ_MAX_TIMES 170 /* Maximum number of transition times */
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#endif
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#ifndef TZ_MAX_TYPES
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#define TZ_MAX_TYPES 10 /* Maximum number of local time types */
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#endif
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#ifndef TZ_MAX_CHARS
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#define TZ_MAX_CHARS 50 /* Maximum number of abbreviation characters */
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#endif
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