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/*

This program generates the "times.h" file with the zulu-times of the first of

every month of a decade.

*/

/****************************************************************

 *      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, 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.  See the

 *      GNU General Public License for more details.

 *

 *      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., 675 Mass Ave, Cambridge, MA 02139, USA.

 *

 ****************************************************************/

#include <time.h>

#include <stdio.h>

static time_t GetDay(int D,int M,int Y)

{

        struct tm TM;

        TM.tm_sec       = 0;

        TM.tm_min       = 0;

        TM.tm_hour      = 0;

        TM.tm_mday      = D;

        TM.tm_mon       = M;

        TM.tm_wday      = 0;

        TM.tm_yday      = 0;

        TM.tm_year      = Y-1900;

        TM.tm_isdst     = 0;

        return mktime(&TM);

}

static int WeekGetDay(int D,int M,int Y)

{

        struct tm TM;

        TM.tm_sec       = 0;

        TM.tm_min       = 0;

        TM.tm_hour      = 0;

        TM.tm_mday      = D;

        TM.tm_mon       = M;

        TM.tm_year      = Y-1900;

        TM.tm_isdst     = 0;

        TM.tm_wday      = 0;

        TM.tm_yday      = 0;

        (void)mktime(&TM);

        return TM.tm_wday;

}

int main(void)

{

        int M,Y;

        FILE *file;

        file=fopen("times.h","w");

        if (file==NULL)

                return 0;

        fprintf(file,"static time_t TimeDays[10][13] = { \n");

        Y=1997;

        while (Y<2007)

        {

                M=0;

                fprintf(file," { ");

                while (M<12)

                {

                        fprintf(file,"%i",(int)GetDay(1,M,Y));

                        fprintf(file,",\t");

                        M++;

                }

                fprintf(file,"%i } ",(int)GetDay(1,0,Y+1));

                if (Y!=2006) fprintf(file,",");

                fprintf(file,"\n");

                Y++;

        }

        fprintf(file,"};\n");

        fprintf(file,"static int WeekDays[10][13] = { \n");

        Y=1997;

        while (Y<2007)

        {

                M=0;

                fprintf(file," { ");

                while (M<12)

                {

                        fprintf(file,"%i",(int)WeekGetDay(1,M,Y));

                        fprintf(file,",\t");

                        M++;

                }

                fprintf(file,"%i } ",(int)WeekGetDay(1,0,Y+1));

                if (Y!=2006) fprintf(file,",");

                fprintf(file,"\n");

                Y++;

        }

        fprintf(file,"};\n");

        fprintf(file,"#define KHTTPD_YEAROFFSET   1997\n");

        fprintf(file,"#define KHTTPD_NUMYEARS     10\n");

        (void)fclose(file);

        return 0;

}