#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <time.h>
#include <string.h>

#define SECS_IN_DAY 86400

int main(int argc, char *argv[])
{
	long lToday;
	int numdays;
	int iCntr;
	int iWhatMonth;
        char cTmp[5];
        struct tm *pTimePtr;
	int days[12] = {31,28,31,30,31,30,31,31,30,31,30,31};

        time(&lToday);

        pTimePtr = localtime(&lToday);

        if (argc >= 2)
	{
                sprintf(cTmp, "%c%c%c%c", argv[1][0], argv[1][1], argv[1][2], argv[1][3]);
                pTimePtr->tm_year = atoi(cTmp) - 1900;
        }
	
	iWhatMonth = pTimePtr->tm_mon;

	if (pTimePtr->tm_year % 4 == 0)
		days[1]++;

	pTimePtr->tm_mon = 0;
	pTimePtr->tm_mday = 1;
	lToday = mktime(pTimePtr);
	iCntr = 1;
	numdays = 0;

	while (pTimePtr->tm_year == (atoi(cTmp) - 1900))
	{
		if (pTimePtr->tm_wday != 0 && pTimePtr->tm_wday != 6)
			numdays++;

		lToday += SECS_IN_DAY;
		pTimePtr = localtime(&lToday);

	}
	printf("Work days in %d are %d\n", atoi(cTmp), numdays);
	
        return 0;
}