mirror of https://git.code.sf.net/p/quake/newtree
80 lines
1.6 KiB
C
80 lines
1.6 KiB
C
/*
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buildnum.c
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build number function
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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$Id$
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_STRINGS_H
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#include <strings.h>
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#endif
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//char *date = "Dec 21 1999";
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static char *date = __DATE__ ;
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static char *mon[12] =
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{ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
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static char mond[12] =
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{ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
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// returns days since Dec 21 1999
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int build_number( void )
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{
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int m = 0;
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int d = 0;
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int y = 0;
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static int b = 0;
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if (b != 0)
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return b;
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for (m = 0; m < 11; m++)
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{
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if (strncasecmp( &date[0], mon[m], 3 ) == 0)
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break;
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d += mond[m];
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}
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d += atoi( &date[4] ) - 1;
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y = atoi( &date[7] ) - 1900;
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b = d + (int)((y - 1) * 365.25);
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if (((y % 4) == 0) && m > 1)
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{
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b += 1;
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}
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b -= 36148; // Dec 21 1999
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return b;
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}
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