#include <stdarg.h>
#define MAX_LENGTH 65536

char * formatString(const char *format, ...)
{
    va_list args;
    va_start(args, format);
    char *temp = malloc(MAX_LENGTH * sizeof(char));
    sprintf(temp, format, args);
    va_end(args);
    int length = findActualLength(temp);
    char *retval = malloc(length * sizeof(char));
    int i;
    for (i = 0; i < length; i++)
    {
        *(retval + i) = *(temp + i);
    }
    free(temp);
    return retval;
}

int findActualLength(const char *c)
{
    int index;
    for (index = 0; index < MAX_LENGTH; index++)
    {
        if (*(c + index) == '\0')
        {
            break;
        }
    }
    return index + 1;
}