chrome/browser/storage_monitor/udev_util_linux.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/storage_monitor/udev_util_linux.h"
   6
   7 #include "base/files/file_path.h"
   8
   9 namespace chrome {
  10
  11 std::string GetUdevDevicePropertyValue(struct udev_device* udev_device,
  12                                        const char* key) {
  13   const char* value = udev_device_get_property_value(udev_device, key);
  14   return value ? value : std::string();
  15 }
  16
  17 bool GetUdevDevicePropertyValueByPath(const base::FilePath& device_path,
  18                                       const char* key,
  19                                       std::string* result) {
  20   ScopedUdevObject udev(udev_new());
  21   if (!udev.get())
  22     return false;
  23   ScopedUdevDeviceObject device(udev_device_new_from_syspath(
  24       udev.get(), device_path.value().c_str()));
  25   if (!device.get())
  26     return false;
  27   *result = GetUdevDevicePropertyValue(device.get(), key);
  28   return true;
  29 }
  30
  31 }  // namespace chrome