initial import of 386bsd-0.1 sources

diff --git a/include/tzfile.h b/include/tzfile.h
new file mode 100644 (file)
index 0000000..43f5642
--- /dev/null
+++ b/include/tzfile.h
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Arthur David Olson of the National Cancer Institute.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *     @(#)tzfile.h    5.10 (Berkeley) 4/3/91
+ */
+
+#ifndef _TZFILE_H_
+#define        _TZFILE_H_
+
+/*
+ * Information about time zone files.
+ */
+                       /* Time zone object file directory */
+#define TZDIR          "/usr/share/zoneinfo"
+#define TZDEFAULT      "/etc/localtime"
+#define TZDEFRULES     "posixrules"
+
+/*
+** Each file begins with. . .
+*/
+
+struct tzhead {
+       char    tzh_reserved[24];       /* reserved for future use */
+       char    tzh_ttisstdcnt[4];      /* coded number of trans. time flags */
+       char    tzh_leapcnt[4];         /* coded number of leap seconds */
+       char    tzh_timecnt[4];         /* coded number of transition times */
+       char    tzh_typecnt[4];         /* coded number of local time types */
+       char    tzh_charcnt[4];         /* coded number of abbr. chars */
+};
+
+/*
+** . . .followed by. . .
+**
+**     tzh_timecnt (char [4])s         coded transition times a la time(2)
+**     tzh_timecnt (unsigned char)s    types of local time starting at above
+**     tzh_typecnt repetitions of
+**             one (char [4])          coded GMT offset in seconds
+**             one (unsigned char)     used to set tm_isdst
+**             one (unsigned char)     that's an abbreviation list index
+**     tzh_charcnt (char)s             '\0'-terminated zone abbreviations
+**     tzh_leapcnt repetitions of
+**             one (char [4])          coded leap second transition times
+**             one (char [4])          total correction after above
+**     tzh_ttisstdcnt (char)s          indexed by type; if TRUE, transition
+**                                     time is standard time, if FALSE,
+**                                     transition time is wall clock time
+**                                     if absent, transition times are
+**                                     assumed to be wall clock time
+*/
+
+/*
+** In the current implementation, "tzset()" refuses to deal with files that
+** exceed any of the limits below.
+*/
+
+/*
+** The TZ_MAX_TIMES value below is enough to handle a bit more than a
+** year's worth of solar time (corrected daily to the nearest second) or
+** 138 years of Pacific Presidential Election time
+** (where there are three time zone transitions every fourth year).
+*/
+#define TZ_MAX_TIMES   370
+
+#define NOSOLAR                        /* 4BSD doesn't currently handle solar time */
+
+#ifndef NOSOLAR
+#define TZ_MAX_TYPES   256     /* Limited by what (unsigned char)'s can hold */
+#else
+#define TZ_MAX_TYPES   10      /* Maximum number of local time types */
+#endif
+
+#define TZ_MAX_CHARS   50      /* Maximum number of abbreviation characters */
+
+#define        TZ_MAX_LEAPS    50      /* Maximum number of leap second corrections */
+
+#define SECSPERMIN     60
+#define MINSPERHOUR    60
+#define HOURSPERDAY    24
+#define DAYSPERWEEK    7
+#define DAYSPERNYEAR   365
+#define DAYSPERLYEAR   366
+#define SECSPERHOUR    (SECSPERMIN * MINSPERHOUR)
+#define SECSPERDAY     ((long) SECSPERHOUR * HOURSPERDAY)
+#define MONSPERYEAR    12
+
+#define TM_SUNDAY      0
+#define TM_MONDAY      1
+#define TM_TUESDAY     2
+#define TM_WEDNESDAY   3
+#define TM_THURSDAY    4
+#define TM_FRIDAY      5
+#define TM_SATURDAY    6
+
+#define TM_JANUARY     0
+#define TM_FEBRUARY    1
+#define TM_MARCH       2
+#define TM_APRIL       3
+#define TM_MAY         4
+#define TM_JUNE                5
+#define TM_JULY                6
+#define TM_AUGUST      7
+#define TM_SEPTEMBER   8
+#define TM_OCTOBER     9
+#define TM_NOVEMBER    10
+#define TM_DECEMBER    11
+
+#define TM_YEAR_BASE   1900
+
+#define EPOCH_YEAR     1970
+#define EPOCH_WDAY     TM_THURSDAY
+
+/*
+** Accurate only for the past couple of centuries;
+** that will probably do.
+*/
+
+#define isleap(y) (((y) % 4) == 0 && ((y) % 100) != 0 || ((y) % 400) == 0)
+
+#endif /* !_TZFILE_H_ */