Function melib::gpgme::bindings::gpgme_data_new_from_filepart

pub unsafe extern "C" fn gpgme_data_new_from_filepart(
    r_dh: *mut *mut gpgme_data, 
    fname: *const c_char, 
    fp: *mut FILE, 
    offset: off_t, 
    length: usize
) -> c_uint