Allow hyphens at the beginning of domain components, except for the last domain component.

net/base/net_util_unittest.cc

 // Copyright (c) 2011 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/net_util.h"
 
 #include <algorithm>
 
 #include "base/file_path.h"
 #include "base/format_macros.h"
@@ skipping 1001 matching lines @@
     {".", "", false},
     {"9", "", false},
     {"9", "a", true},
     {"9a", "", false},
     {"9a", "a", true},
     {"a.", "", true},
     {"a.a", "", true},
     {"9.a", "", true},
     {"a.9", "", false},
     {"_9a", "", false},
+    {"-9a", "", false},
     {"a.a9", "", true},
     {"a.9a", "", false},
     {"a+9a", "", false},
+    {"-a.a9", "", true},
     {"1-.a-b", "", false},
     {"1-2.a_b", "", true},
     {"a.b.c.d.e", "", true},
     {"1.2.3.4.e", "", true},
     {"a.b.c.d.5", "", false},
     {"1.2.3.4.e.", "", true},
     {"a.b.c.d.5.", "", false},
   };
 
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(compliant_host_cases); ++i) {
@@ skipping 1312 matching lines @@
       if (it->address[i] != 0) {
         all_zeroes = false;
         break;
       }
     }
     EXPECT_FALSE(all_zeroes);
   }
 }
 
 }  // namespace net