zip and unzip folders

i download .zip folder (zip folder contains lot of images) using “CCHttpRequest”.
now i want to unzip this folder.
is there any method to unzip folders

Actually i am able to zip and unzip individual files using “zlib” but it is not working for multiple files/folders.

is there any method to unzip folders.

can any one help me to find solution.

You can refer to extensions/AssetsManager/AssetsManager.cpp.

thanks minggo
your suggestion helped me
Actually i was using cocos2d-x 2.0.4 version, in that AssetsManager.cpp is not there.
now i upgraded to new cocos2d-x