auth: fix dot stripping in setContent()

diff --git a/pdns/dnsrecords.cc b/pdns/dnsrecords.cc
index c29f1794ddde40676e33baa837cb52ca5fef1665..d89419e23229f5bb130a627b32975658e89abe13 100644 (file)
--- a/pdns/dnsrecords.cc
+++ b/pdns/dnsrecords.cc
@@ -39,7 +39,7 @@ void DNSResourceRecord::setContent(const string &cont) {
     case QType::DNAME:
     case QType::NS:
     case QType::PTR:
-      if(!content.empty())
+      if (content.size() >= 2 && *(content.rbegin()) == '.')
         boost::erase_tail(content, 1);
   }
 }