Limit the maximum length of a qname

diff --git a/pdns/dnsparser.cc b/pdns/dnsparser.cc
index a1e21bc8246e5de9a8ef4065337527764c1fa8dd..c844f86327debfa3dc00668bf814b70f1c78aef2 100644 (file)
--- a/pdns/dnsparser.cc
+++ b/pdns/dnsparser.cc
@@ -494,6 +494,8 @@ void PacketReader::getLabelFromContent(const vector<uint8_t>& content, uint16_t&
       }
       ret.append(1,'.');
     }
+    if (ret.length() > 1024)
+      throw MOADNSException("Total name too long");
   }
 }