[net/dns] Resolve AF_UNSPEC on dual-stacked systems. Sort addresses according to RFC3484.

net/tools/dns_fuzz_stub/dns_fuzz_stub.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <algorithm>
 #include <sstream>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 131 matching lines @@
 
   if (!response.InitParse(resp_buf.size(), query)) {
     LOG(INFO) << "InitParse failed.";
     return;
   }
 
   net::AddressList address_list;
   base::TimeDelta ttl;
   net::DnsResponse::Result result = response.ParseToAddressList(
       &address_list, &ttl);
-  if (result != net::DnsResponse::DNS_SUCCESS) {
+  if (result != net::DnsResponse::DNS_PARSE_OK) {
     LOG(INFO) << "ParseToAddressList failed: " << result;
     return;
   }
 
   // Print the response in one compact line.
   std::stringstream result_line;
   result_line << "Response: address_list={ ";
   for (unsigned int i = 0; i < address_list.size(); i++)
     result_line << address_list[i].ToString() << " ";
   result_line << "}, ttl=" << ttl.InSeconds() << "s";
@@ skipping 43 matching lines @@
     if (!ReadAndRunTestCase(argv[i]))
       ret = 2;
 
   // Cluster-Fuzz likes "#EOF" as the last line of output to help distinguish
   // successful runs from crashes.
   printf("#EOF\n");
 
   return ret;
 }