remoting/jingle_glue/network_settings.cc

   1 // Copyright 2014 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 "remoting/jingle_glue/network_settings.h"
   6
   7 #include <limits.h>
   8 #include <stdlib.h>
   9
  10 #include "base/strings/string_number_conversions.h"
  11 #include "base/strings/string_util.h"
  12
  13 namespace remoting {
  14
  15 // static
  16   bool NetworkSettings::ParsePortRange(const std::string& port_range,
  17                                        int* out_min_port,
  18                                        int* out_max_port) {
  19   size_t separator_index = port_range.find('-');
  20   if (separator_index == std::string::npos)
  21     return false;
  22
  23   std::string min_port_string, max_port_string;
  24   base::TrimWhitespaceASCII(port_range.substr(0, separator_index),
  25                             base::TRIM_ALL,
  26                             &min_port_string);
  27   base::TrimWhitespaceASCII(port_range.substr(separator_index + 1),
  28                             base::TRIM_ALL,
  29                             &max_port_string);
  30
  31   unsigned min_port, max_port;
  32   if (!base::StringToUint(min_port_string, &min_port) ||
  33       !base::StringToUint(max_port_string, &max_port)) {
  34     return false;
  35   }
  36
  37   if (min_port == 0 || min_port > max_port || max_port > USHRT_MAX)
  38     return false;
  39
  40   *out_min_port = static_cast<int>(min_port);
  41   *out_max_port = static_cast<int>(max_port);
  42   return true;
  43 }
  44
  45 }  // namespace remoting