| // Copyright 2018 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| use anyhow::{format_err, Error}; |
| use fuchsia_bluetooth::types::{Address, PeerId}; |
| |
| pub const BONDING_DATA_PREFIX: &'static str = "bonding-data:"; |
| pub const HOST_DATA_PREFIX: &'static str = "host-data:"; |
| |
| pub fn bonding_data_key(device_id: PeerId) -> String { |
| format!("{}{}", BONDING_DATA_PREFIX, device_id) |
| } |
| |
| pub fn host_data_key(host_address: &Address) -> String { |
| format!("{}{}", HOST_DATA_PREFIX, host_address.as_hex_string()) |
| } |
| |
| pub fn host_id_from_key(key: &str) -> Result<String, Error> { |
| if key.len() <= HOST_DATA_PREFIX.len() { |
| return Err(format_err!("malformed host data key: {}", key)); |
| } |
| Ok(key[HOST_DATA_PREFIX.len()..].to_string()) |
| } |
