Thread: New to C: I need to put my printf object into a variable and then print it out.

I have a problem, I need to store my printf screen into a variable and output it back to the user. I am super new to c. So any help would be greatly appreciated.

My code is below:

Code:

#include <stdio.h>      
#include <time.h>       /* time_t, struct tm, time, gmtime */

int main (){
    //Create time structure
    time_t temp = time(NULL); 
    struct tm *tick_time = localtime(&temp);

    //Store current day# in year 
    static char s_day_text[] = "DAY 000/"; 
    strftime(s_day_text, sizeof(s_day_text), "DAY %j/", tick_time);
  
    //Store current year in variable
    static char s_year[] = "0000";
    strftime(s_year, sizeof(s_year), "%y", tick_time);
    int year = atoi(s_year);
    
    int total_days=000;    

    //Determine if current year is a leap year
    if(year%4 == 0 && year%100 != 0 || year%400 == 0){
         total_days = 366; //Year is a leap year
        
    }else{
         total_days = 365; //Year is not a leap year
    }
  
    
    //Need this print out to be stored in variable 
    printf("%s%d\n" ,s_day_text ,total_days);
  
    //My poor attempts to store a complete printf into a variable
    /*strcat(s_day_text,total_days);*/

    char *buffer[21];
    snprintf(buffer, "%s%d\n" ,s_day_text ,total_days);
    printf(buffer);

    
   return 0;
}