avoid passing undefined data to decode_base64()

diff --git a/Crypt/Monkeysphere/MSVA.pm b/Crypt/Monkeysphere/MSVA.pm
index 1ade1ab137700c55b790d0b63fccfc6ef0a54323..fc4f70c318c077ee7bd57df016af0654ad4ce1c4 100755 (executable)
--- a/Crypt/Monkeysphere/MSVA.pm
+++ b/Crypt/Monkeysphere/MSVA.pm
@@ -183,6 +183,9 @@
 
   sub parse_rfc4716body {
     my $data = shift;
+
+    return undef
+      unless defined($data);
     $data = decode_base64($data) or return undef;
 
     msvalog('debug', "key properties: %s\n", unpack('H*', $data));