1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1989, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $FreeBSD$ 32 */ 33 34 #include <sys/types.h> 35 #include <sys/uio.h> 36 37 #define SECSPERDAY (24 * 60 * 60) 38 #define SECSPERHOUR (60 * 60) 39 #define SECSPERMINUTE (60) 40 #define MINSPERHOUR (60) 41 #define HOURSPERDAY (24) 42 #define FSECSPERDAY (24.0 * 60.0 * 60.0) 43 #define FSECSPERHOUR (60.0 * 60.0) 44 #define FSECSPERMINUTE (60.0) 45 #define FMINSPERHOUR (60.0) 46 #define FHOURSPERDAY (24.0) 47 48 #define DAYSPERYEAR 365 49 #define DAYSPERLEAPYEAR 366 50 51 /* Not yet categorized */ 52 53 extern struct passwd *pw; 54 extern int doall; 55 extern time_t t1, t2; 56 extern const char *calendarFile; 57 extern int yrdays; 58 extern struct fixs neaster, npaskha, ncny, nfullmoon, nnewmoon; 59 extern struct fixs nmarequinox, nsepequinox, njunsolstice, ndecsolstice; 60 extern double UTCOffset; 61 extern int EastLongitude; 62 #ifdef WITH_ICONV 63 extern const char *outputEncoding; 64 #endif 65 66 #define isleap(y) ((((y) % 4) == 0 && ((y) % 100) != 0) || ((y) % 400) == 0) 67 68 /* Flags to determine the returned values by determinestyle() in parsedata.c */ 69 #define F_NONE 0x00000 70 #define F_MONTH 0x00001 71 #define F_DAYOFWEEK 0x00002 72 #define F_DAYOFMONTH 0x00004 73 #define F_MODIFIERINDEX 0x00008 74 #define F_MODIFIEROFFSET 0x00010 75 #define F_SPECIALDAY 0x00020 76 #define F_ALLMONTH 0x00040 77 #define F_ALLDAY 0x00080 78 #define F_VARIABLE 0x00100 79 #define F_EASTER 0x00200 80 #define F_CNY 0x00400 81 #define F_PASKHA 0x00800 82 #define F_NEWMOON 0x01000 83 #define F_FULLMOON 0x02000 84 #define F_MAREQUINOX 0x04000 85 #define F_SEPEQUINOX 0x08000 86 #define F_JUNSOLSTICE 0x10000 87 #define F_DECSOLSTICE 0x20000 88 #define F_YEAR 0x40000 89 90 #define STRING_EASTER "Easter" 91 #define STRING_PASKHA "Paskha" 92 #define STRING_CNY "ChineseNewYear" 93 #define STRING_NEWMOON "NewMoon" 94 #define STRING_FULLMOON "FullMoon" 95 #define STRING_MAREQUINOX "MarEquinox" 96 #define STRING_SEPEQUINOX "SepEquinox" 97 #define STRING_JUNSOLSTICE "JunSolstice" 98 #define STRING_DECSOLSTICE "DecSolstice" 99 100 #define MAXCOUNT 125 /* Random number of maximum number of 101 * repeats of an event. Should be 52 102 * (number of weeks per year), if you 103 * want to show two years then it 104 * should be 104. If you are seeing 105 * more than this you are using this 106 * program wrong. 107 */ 108 109 /* 110 * All the astronomical calculations are carried out for the meridian 120 111 * degrees east of Greenwich. 112 */ 113 #define UTCOFFSET_CNY 8.0 114 115 extern int debug; /* show parsing of the input */ 116 extern int year1, year2; 117 118 /* events.c */ 119 /* 120 * Event sorting related functions: 121 * - Use event_add() to create a new event 122 * - Use event_continue() to add more text to the last added event 123 * - Use event_print_all() to display them in time chronological order 124 */ 125 struct event *event_add(int, int, int, int, char *, char *); 126 void event_continue(struct event *events, char *txt); 127 void event_print_all(FILE *fp); 128 struct event { 129 int year; 130 int month; 131 int day; 132 int var; 133 char *text; 134 char *extra; 135 struct event *next; 136 }; 137 138 /* locale.c */ 139 140 struct fixs { 141 char *name; 142 size_t len; 143 }; 144 145 extern const char *days[]; 146 extern const char *fdays[]; 147 extern const char *fmonths[]; 148 extern const char *months[]; 149 extern const char *sequences[]; 150 extern struct fixs fndays[8]; /* full national days names */ 151 extern struct fixs fnmonths[13]; /* full national months names */ 152 extern struct fixs ndays[8]; /* short national days names */ 153 extern struct fixs nmonths[13]; /* short national month names */ 154 extern struct fixs nsequences[10]; 155 156 void setnnames(void); 157 void setnsequences(char *); 158 159 /* day.c */ 160 extern const struct tm tm0; 161 extern char dayname[]; 162 void settimes(time_t,int before, int after, int friday, struct tm *tp1, struct tm *tp2); 163 time_t Mktime(char *); 164 165 /* parsedata.c */ 166 int parsedaymonth(char *, int *, int *, int *, int *, char **); 167 void dodebug(char *type); 168 169 /* io.c */ 170 void cal(void); 171 void closecal(FILE *); 172 FILE *opencalin(void); 173 FILE *opencalout(void); 174 175 /* ostern.c / paskha.c */ 176 int paskha(int); 177 int easter(int); 178 int j2g(int); 179 180 /* dates.c */ 181 extern int cumdaytab[][14]; 182 extern int monthdaytab[][14]; 183 extern int debug_remember; 184 void generatedates(struct tm *tp1, struct tm *tp2); 185 void dumpdates(void); 186 int remember_ymd(int y, int m, int d); 187 int remember_yd(int y, int d, int *rm, int *rd); 188 int first_dayofweek_of_year(int y); 189 int first_dayofweek_of_month(int y, int m); 190 int walkthrough_dates(struct event **e); 191 void addtodate(struct event *e); 192 193 /* pom.c */ 194 #define MAXMOONS 18 195 void pom(int year, double UTCoffset, int *fms, int *nms); 196 void fpom(int year, double utcoffset, double *ffms, double *fnms); 197 198 /* sunpos.c */ 199 void equinoxsolstice(int year, double UTCoffset, int *equinoxdays, int *solsticedays); 200 void fequinoxsolstice(int year, double UTCoffset, double *equinoxdays, double *solsticedays); 201 int calculatesunlongitude30(int year, int degreeGMToffset, int *ichinesemonths); 202 203 #ifdef WITH_ICONV 204 void set_new_encoding(void); 205 #endif 206