only warn if unable to register heuristic dissector

probably old wireshark
mdavidsaver · May 12, 2018 · 6ccc978 · 6ccc978
1 parent ada769c
commit 6ccc978
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/pva.lua b/pva.lua
@@ -321,7 +321,11 @@ end
 -- So don't register the udp dissector, which is only necessary
 -- when using a non-standard port for searches.
 --pva:register_heuristic("udp", test_pva)
-pva:register_heuristic("tcp", test_pva)
+local status, err = pcall(function() pva:register_heuristic("tcp", test_pva) end)
+if not status then
+  print("Failed to register PVA heuristic dissector.  Must manually specify TCP port! (try newer wireshark?)")
+  print(err)
+end
 
 local function decodeStatus (buf, pkt, t, isbe)
   local code = buf(0,1):uint()