Convert a CFStringRef to a C string?

Question

Hello lovely computer people:

I would like to convert the following CFStringRef into a CString. Any idea how?

recordFilePath = (CFStringRef)[NSTemporaryDirectory() stringByAppendingPathComponent: @"recordedFile.wav"];

Thanks!

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EDIT 1

DarkDust answer seems to come close, but I'm still getting an error (see comment). Any help?