#include <stdio.h>
#include <stdlib.h>
#include<time.h>


#define OFORMAT "%Y-%m-%d"

//char holidy_list[][12]={"01-Jan-2004","03-Jan-2004","04-Jan-2004","10-Jan-2004","11-Jan-2004","17-Jan-2004","18-Jan-2004"};

char holidy_list[][12]={"2004-01-01","2004-01-03","2004-01-04","2004-01-10","2004-01-11","2004-01-17","2004-01-18"};

int main(void)
{
   struct tm xmas, *tm1;
   time_t tt;

   int flg=0,i,found=0;

   char date[] = "2003-12-31";
   char buf[12];



  int no_of_days =1;  // nth working day 
  int  count =0;

   if (strptime(date, "%Y-%m-%d", &xmas) == NULL)
   {
      printf("strptime() failed.\n");
      exit(1);
   }


    tt = mktime(&xmas);
    tm1 = localtime(&tt);
    strftime(buf,sizeof(buf), OFORMAT, tm1);
    printf("\nOld Date is <%s>\n",buf);

 for(;;)
 {
    tt= tt-86400;
    tm1 = localtime(&tt);
    strftime(buf,sizeof(buf), OFORMAT, tm1);

    //printf("\nbuf<%s>  count<%d>",buf,count);
    found=0;
    if (tm1->tm_wday==0 || tm1->tm_wday ==6)
    {
         continue;
    }

    if(HashGet(buf))
     { found = 1;}

    if(found ==0)
     {
        count ++;
        if (count >= no_of_days)  break;

     }

     //printf("\nbuf<%s> hldlst<%s> count<%d>",buf,holidy_list[i],count);

  }

  for( i = 0; buf[ i ]; i++)
    buf[ i ] = toupper( buf[ i ] );
  printf( "\nNew Date is <%s>\n",buf);
}


int HashGet(char buf[])
{
    int i;
    for(i=0;i< (sizeof(holidy_list)/sizeof("30-DEC-2008"));i++)
    {
      if (strncasecmp(holidy_list[i],buf,sizeof(buf))==0)
        { return 1; break;}
    }
    return 0;
}