I am working on python library that wraps a non-free C library. In order to develop this, I referenced the C library's copyrighted documentation. Because of that my function and variable names are the same as the non-free library's.
Am I still okay to apply an open source license to my library?
EDIT: My question is not whether I can use the C api, but whether using that api's documentation will violate the documentations copyright. I am not replacing or reverse engineering the copyrighted api, but an exposing that api's functions to a python library.