pub unsafe extern "C" fn nettle_ccm_aes256_decrypt_message(
ctx: *mut ccm_aes256_ctx,
nlength: usize,
nonce: *const u8,
alength: usize,
adata: *const u8,
tlength: usize,
mlength: usize,
dst: *mut u8,
src: *const u8,
) -> c_int