Don't add empty metadata to received messages

e95b477a · Martin Hurton · f721a7ad · e95b477a
Commit e95b477a authored May 02, 2014 by Martin Hurton
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mechanism.cpp src/mechanism.cpp +2 -1

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--- a/src/mechanism.cpp
+++ b/src/mechanism.cpp
@@ -142,7 +142,8 @@ int zmq::mechanism_t::parse_metadata (const unsigned char *ptr_,
    }
    if (zap_flag) {
        assert (metadata == NULL);
-        metadata = new (std::nothrow) metadata_t (dict);
+        if (!dict.empty ())
+            metadata = new (std::nothrow) metadata_t (dict);
    }
    return 0;
 }