Downloading File from FTP

Question

Hi,

      I am Making a tool that download the files from ftp. i did that. but i have some doubts. for downloading the files i want to give the path with End file name. like follow.

 

ftp://xxx.xxx.xxx.21//Direcotry/Sub_Directory1/Sub_Directory2/Sub_Directory3/Filename.zip

 

But i want to download the file by giving the path like follow, 

 

ftp://xxx.xxx.xxx.21//Direcotry/Sub_Directory1/Sub_Directory2/Sub_Directory3

 

because if there were more number of files in  Sub_Directory3 , then i want to give all the file names for download. to avoid that i asking this. i think it's possible. but i don't know how to do that. can any one guide me tho that. 

 

Thanks in Advance.