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1 /*
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2 birthday
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3
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4 Birthday/Anniversary display on login
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5
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6 (c) 1996 AS Mortimer
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7
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8 This program is free software; you can redistribute it and/or
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9 modify it under the terms of the GNU General Public License as
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10 published by the Free Software Foundation; either version 2 of the
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11 License, or (at your option) any later version. You may also
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12 distribute it under the Artistic License, as comes with Perl.
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13
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14 This program is distributed in the hope that it will be useful,
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15 but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with this program; if not, write to the Free Software
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20 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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21
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22 You should also have recieved a copy of the Artistic license with
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23 this program.
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24
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25 $Id: birthday.h,v 1.6 1999/04/25 14:01:29 andy Exp $
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26 */
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27
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28 #include <stdio.h>
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29
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30 /* ========== Configuration section */
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31
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32 /* standard time to warn in advance, when no explicit w flag is given. */
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33 #define DEF_WARN 14
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34
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35
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36
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37 /* ========== Global constants and data types */
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38
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39
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40 /* month lengths etc */
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41
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42 #define isleapyear(y) ((y)%4==0 && ((y)%100 != 0 || (y)%400 == 0))
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43 extern const unsigned MLENDAT[];
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44 #define mlen(m,y) (MLENDAT[(m)-1] != -1 ? MLENDAT[(m)-1] : (isleapyear((y)) ? 29 : 28))
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45 #define before(a,b) ((a).month < (b).month || ((a).month == (b).month && (a).day < (b).day))
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46 #define ydelta(a,b) ((int) (b).year - (a).year + before((a),(b)))
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47
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48 /* -------- modifier flags */
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49
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50 #define F_MTYPE 0x07
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51 #define F_TBIRTHDAY 1
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52 #define F_TANNIVERSARY 2
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53 #define F_TEVENT 3
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54
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55 /* flags processed immediately on encountering */
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56 #define F_MIMMEDIATE 0x24
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57 #define F_WTIME_P 0x08
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58 #define F_FORDAYS 0x16
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59 #define F_TODATE 0x24
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60
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61 struct _ftable {char *txt; unsigned flag;};
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62
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63 extern const struct _ftable FTABLE[];
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64
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65 struct date {
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66 unsigned day;
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67 unsigned month;
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68 unsigned year;
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69 };
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70
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71 struct event {
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72 char *text;
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73 struct date date;
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74 struct date enddate;
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75 int warn;
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76 };
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77
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78 typedef int (*prnfunc)(const char *);
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79
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80 /* ========== */
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81
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82 struct event* readlist(void);
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83 void gettoday(void);
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84 unsigned delta(struct date *);
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85 unsigned ddiff(struct date *D1, struct date *D2);
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86 void liststrings(struct event *evl, prnfunc outf);
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87 char *tdelta(struct date *d);
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88 char *ttime(int yr, int mn, int wk, int dy);
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89
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90 /* ========== Global Variables */
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91
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92 extern struct date today;
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93 extern int iDWarn;
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94
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