--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/birthday.h	Sun Dec 16 22:26:48 2007 +0100
@@ -0,0 +1,104 @@
+/*
+   birthday
+
+   Birthday/Anniversary display on login
+
+   (c) 1996 AS Mortimer
+
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  You may also
+    distribute it under the Artistic License, as comes with Perl.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    You should also have recieved a copy of the Artistic license with
+    this program.
+
+   $Id: birthday.h,v 1.6 1999/04/25 14:01:29 andy Exp $
+*/
+
+/* ========== Configuration section */
+
+#define DEFAULT_FILE ".birthdays"
+
+/* standard time to warn in advance, when no explicit w flag is given. */
+#define DEF_WARN 21
+/* maximum time to warn in advance when no M flag is given */
+#define MAX_WARN 500 /* ie, a year */
+/* minimum time to warn in advance when no m flag */
+#define MIN_WARN 0
+
+/* ========== Required includes */
+
+#include <stdio.h>
+
+/* ========== Global constants and data types */
+
+
+/* month lengths etc */
+
+#define isleapyear(y) ((y)%4==0 && ((y)%100 != 0 || (y)%400 == 0))
+extern const unsigned MLENDAT[];
+#define mlen(m,y) (MLENDAT[(m)-1] != -1 ? MLENDAT[(m)-1] : (isleapyear((y)) ? 29 : 28))
+#define before(a,b) ((a).month < (b).month || ((a).month == (b).month && (a).day < (b).day))
+#define ydelta(a,b) ((int) (b).year - (a).year + before((a),(b)))
+#define warnperiod(ev) ((ev).warn<iMinWarn?iMinWarn:((ev).warn>iMaxWarn?iMaxWarn:(ev).warn))
+
+/* -------- modifier flags */
+
+#define F_MTYPE 0x07
+#define F_TBIRTHDAY 1
+#define F_TANNIVERSARY 2
+#define F_TEVENT 3
+#define F_TMESSAGE 4
+
+/* flags processed immediately on encountering */
+#define F_MIMMEDIATE 0x24
+#define F_WTIME_P 0x08
+#define F_FORDAYS 0x16
+#define F_TODATE 0x24
+
+struct _ftable {char *txt; unsigned flag;};
+
+extern const struct _ftable FTABLE[];
+
+struct date {
+  unsigned day;
+  unsigned month;
+  unsigned year;
+};
+
+struct event {
+  char *text;
+  struct date date;
+  struct date enddate;
+  int warn;
+};
+
+typedef int (*prnfunc)(const char *);
+
+/* ========== */
+
+struct event *readlist(char *fname);
+void gettoday(void);
+unsigned delta(struct date *);
+unsigned ddiff(struct date *D1, struct date *D2);
+void liststrings(struct event *evl, prnfunc outf);
+char *tdelta(struct date *d);
+char *ttime(int yr, int mn, int wk, int dy);
+
+/* ========== Global Variables */
+
+extern struct date today;
+extern int iDWarn;
+extern int iMaxWarn;
+extern int iMinWarn;
+