title: Setting data to a nodePtr without overwriting
body: <p>Okay so i would like to know how to set a data structure that has other types of data such as road or city inside the struct but it doesnt have an array for the struct data type.</p>
  
  <pre><code>   Struct data
      {
       Char city[MAX_LENGTH];
       Char road[MAX_LENGTH];
       }
  </code></pre>
  
  <p>In main:
            Data data;  //just dont want to change the name 
  I know how to init a node insert a node etc...but when it comes to adding more info i dont,understand...
   And when i read a binary file. It reads through said struct and i want to add more to the binary file without overwriting it. and im not sure how i would add to it by using a node. Any ideas?</p>
  
  <p>Basic description:
  I need to add. A city and a road without overwriting what is in the binary file.</p>