xref: /freebsd/usr.bin/calendar/calendar.h (revision e627b39baccd1ec9129690167cf5e6d860509655)
1 /*
2  * Copyright (c) 1989, 1993, 1994
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 
35 extern struct passwd *pw;
36 extern int doall;
37 extern struct iovec header[];
38 extern struct tm *tp;
39 extern char *calendarFile;
40 extern char *optarg;
41 
42 void	 cal __P((void));
43 void	 closecal __P((FILE *));
44 int	 getday __P((char *));
45 int	 getdayvar __P((char *));
46 int	 getfield __P((char *, char **, int *));
47 int	 getmonth __P((char *));
48 int	 geteaster __P((char *, int));
49 int      getpaskha __P((char *, int));
50 int      easter __P((int));
51 int	 isnow __P((char *, int *, int *, int *));
52 FILE	*opencal __P((void));
53 void	 settime __P((time_t));
54 time_t   Mktime __P((char *));
55 void	 usage __P((void));
56 void     setnnames __P((void));
57 
58 #define isleap(y) ((((y) % 4) == 0 && ((y) % 100) != 0) || ((y) % 400) == 0)
59 
60 /* some flags */
61 #define	F_ISMONTH	0x01 /* month (Januar ...) */
62 #define	F_ISDAY		0x02 /* day of week (Sun, Mon, ...) */
63 #define	F_ISDAYVAR	0x04 /* variables day of week, like SundayLast */
64 #define	F_EASTER	0x08 /* Easter or easter depending days */
65 
66 extern f_dayAfter; /* days after current date */
67 extern f_dayBefore; /* days bevore current date */
68 
69 struct fixs {
70 	char *name;
71 	int len;
72 };
73 
74