xref: /freebsd/usr.bin/calendar/calendar.h (revision 195ebc7e9e4b129de810833791a19dfb4349d6a9)
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  * $FreeBSD$
34  */
35 
36 #include <sys/types.h>
37 #include <sys/uio.h>
38 
39 extern struct passwd *pw;
40 extern int doall;
41 extern struct iovec header[];
42 extern struct tm *tp;
43 extern const char *calendarFile;
44 extern int *cumdays;
45 extern int yrdays;
46 extern struct fixs neaster, npaskha;
47 
48 void	cal(void);
49 void	closecal(FILE *);
50 int	getday(char *);
51 int	getdayvar(char *);
52 int	getfield(char *, char **, int *);
53 int	getmonth(char *);
54 int	geteaster(char *, int);
55 int	getpaskha(char *, int);
56 int	easter(int);
57 int	isnow(char *, int *, int *, int *);
58 FILE	*opencal(void);
59 void	settime(time_t);
60 time_t	Mktime(char *);
61 void	setnnames(void);
62 
63 #define isleap(y) ((((y) % 4) == 0 && ((y) % 100) != 0) || ((y) % 400) == 0)
64 
65 /* some flags */
66 #define	F_ISMONTH	0x01	/* month (January ...) */
67 #define	F_ISDAY		0x02	/* day of week (Sun, Mon, ...) */
68 #define	F_ISDAYVAR	0x04	/* variables day of week, like SundayLast */
69 #define	F_EASTER	0x08	/* Easter or easter depending days */
70 
71 extern int	f_dayAfter;	/* days after current date */
72 extern int	f_dayBefore;	/* days before current date */
73 extern int	Friday;		/* day before weekend */
74 
75 struct fixs {
76 	char	*name;
77 	int	len;
78 };
79