quakeforge-old/common/buildnum.c

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1999-12-25 05:22:39 +00:00
/*
buildnum.c
Build number (actually date) calculator
Copyright (C) 1996-1997 Id Software, Inc.
Copyright (C) 1999-2000 The QuakeForge Project
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.
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.
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*/
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#include <stdlib.h>
#include <string.h>
#include <quakedef.h>
//char *date = "Dec 21 1999";
//char *time = "00:00:00";
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char *date = __DATE__ ;
char *time = __TIME__ ;
char *mon[12] =
{ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
char mond[12] =
{ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
// returns days since Oct 24 1996
int build_number( void )
{
int m = 0;
int d = 0;
int y = 0;
int hr, min;
static int b = 0;
if (b != 0)
return b;
for (m = 0; m < 11; m++)
{
if (_strnicmp( &date[0], mon[m], 3 ) == 0)
break;
d += mond[m];
}
d += atoi( &date[4] ) - 1;
y = atoi( &date[7] ) - 1900;
b = d + (int)((y - 1) * 365.25);
if (((y % 4) == 0) && m > 1)
{
b += 1;
}
b -= 36148; // Dec 21 1999
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hr = (time[0] - '0') * 10 + (time[1] - '0');
min = (time[3] - '0') * 10 + (time[4] - '0');
// sec = (time[6] - '0') * 10 + (time[7] - '0');
b *= 60*24;
b += hr * 60 + min;
return b;
}