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https://git.code.sf.net/p/quake/quakeforge
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82 lines
1.7 KiB
C
82 lines
1.7 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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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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static __attribute__ ((unused)) const char rcsid[] =
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"$Id$";
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include <stdlib.h>
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#include "buildnum.h"
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static const char *date = __DATE__; // Was "Dec 21 1999"
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static const char *mon[12] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul",
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"Aug", "Sep", "Oct", "Nov", "Dec" };
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static const char mond[12] = { 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
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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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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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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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