fix bug 5430

webrtc/base/network.cc

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 753 matching lines @@
 }
 
 IPAddress BasicNetworkManager::QueryDefaultLocalAddress(int family) const {
   ASSERT(thread_ == Thread::Current());
   ASSERT(thread_->socketserver() != nullptr);
   ASSERT(family == AF_INET || family == AF_INET6);
 
   scoped_ptr<AsyncSocket> socket(
       thread_->socketserver()->CreateAsyncSocket(family, SOCK_DGRAM));
   if (!socket) {
+    LOG_ERR(LERROR) << "Socket creation failed";
     return IPAddress();
   }
 
-  if (!socket->Connect(
-          SocketAddress(family == AF_INET ? kPublicIPv4Host : kPublicIPv6Host,
-                        kPublicPort))) {
+  if (socket->Connect(SocketAddress(
+          family == AF_INET ? kPublicIPv4Host : kPublicIPv6Host, kPublicPort)) <
+      0) {
+    LOG_ERR(LERROR) << "Connect failed with " << socket->GetError();
     return IPAddress();
   }
   return socket->GetLocalAddress().ipaddr();
 }
 
 void BasicNetworkManager::UpdateNetworksOnce() {
   if (!start_count_)
     return;
 
   ASSERT(Thread::Current() == thread_);
@@ skipping 122 matching lines @@
   std::stringstream ss;
   // Print out the first space-terminated token of the network desc, plus
   // the IP address.
   ss << "Net[" << description_.substr(0, description_.find(' '))
      << ":" << prefix_.ToSensitiveString() << "/" << prefix_length_
      << ":" << AdapterTypeToString(type_) << "]";
   return ss.str();
 }
 
 }  // namespace rtc