1//
2// Copyright (C) 2013 The Android Open Source Project
3//
4// Licensed under the Apache License, Version 2.0 (the "License");
5// you may not use this file except in compliance with the License.
6// You may obtain a copy of the License at
7//
8//      http://www.apache.org/licenses/LICENSE-2.0
9//
10// Unless required by applicable law or agreed to in writing, software
11// distributed under the License is distributed on an "AS IS" BASIS,
12// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13// See the License for the specific language governing permissions and
14// limitations under the License.
15//
16
17#include "update_engine/common/hwid_override.h"
18
19#include <map>
20#include <string>
21
22#include <base/files/file_path.h>
23#include <base/files/file_util.h>
24#include <brillo/key_value_store.h>
25
26using std::map;
27using std::string;
28
29namespace chromeos_update_engine {
30
31const char HwidOverride::kHwidOverrideKey[] = "HWID_OVERRIDE";
32
33HwidOverride::HwidOverride() {}
34
35HwidOverride::~HwidOverride() {}
36
37string HwidOverride::Read(const base::FilePath& root) {
38  brillo::KeyValueStore lsb_release;
39  lsb_release.Load(base::FilePath(root.value() + "/etc/lsb-release"));
40  string result;
41  if (lsb_release.GetString(kHwidOverrideKey, &result))
42    return result;
43  return "";
44}
45
46}  // namespace chromeos_update_engine
47