Function rust_sodium_sys::crypto_stream_aes128ctr_xor

pub unsafe extern fn crypto_stream_aes128ctr_xor(c: *mut u8,
                                                 m: *const u8,
                                                 mlen: c_ulonglong,
                                                 n: *const u8,
                                                 k: *const u8)
                                                 -> c_int