Simple Socket Server Plus, adding own username and password

Hi all,

With reference to Simple Socket Server Plus Example Design,is there a way to create our own username and password when using FTP without modifying the source code in the bsp folders?

I notice that the username and password is created using the add_user() function in ftpsport.c inside BSP folder. How do I call/use this function in user's application project?

Thanks for your help in advance.