Image Upload

I want the image to .png / jpg naming upload to ftp server, do not know how to engage, seeking god help you.
Reply:
This looks like it does not work and you have to pass nsdata data.
Define a protocol with the server, when you pass nsdata field is.
Reply:
I'm doing now is this: using a mobile phone camera, and then upload to ftp server.
I was doing: taking pictures, then the photo is written document, success; Then I read also successfully; Then I upload to ftp, I looked on the server, do have such a picture name, but I continue to point to open image , ftp prompts picture is empty.

Find great God explain why? ? ? Jiji Ji! ! !
Reply:
Refer to this: http://stackoverflow.com/questions/9672617/ios-basic-ftp-setup-read-and-write-stream