net: handle trailing dots in LastTwoLabels.

net/base/ssl_false_start_blacklist.cc

 // Copyright (c) 2010 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 "net/base/ssl_false_start_blacklist.h"
 
 namespace net {
 
 // static
 bool SSLFalseStartBlacklist::IsMember(const char* host) {
-  const char* last_two_labels = LastTwoLabels(host);
-  if (!last_two_labels)
+  const std::string last_two_labels = LastTwoLabels(host);
+  if (last_two_labels.empty())
     return false;
-  const unsigned bucket = Hash(last_two_labels) & (kBuckets - 1);
+  const unsigned bucket = Hash(last_two_labels.c_str()) & (kBuckets - 1);
   const uint32 start = kHashTable[bucket];
   const uint32 end = kHashTable[bucket + 1];
   const size_t len = strlen(host);
 
   for (size_t i = start; i < end;) {
     const size_t blacklist_entry_len = static_cast<uint8>(kHashData[i]);
     if (len >= blacklist_entry_len &&
         memcmp(&host[len - blacklist_entry_len], &kHashData[i + 1],
                blacklist_entry_len) == 0 &&
         (len == blacklist_entry_len ||
          host[len - blacklist_entry_len - 1] == '.')) {
       return true;
     }
     i += blacklist_entry_len + 1;
   }
 
   return false;
 }
 
 }  // namespace net