asnbl-helper.py: Catch BlockingIOError while resolving ASNs for good …

…measure

Signed-off-by: twesterhever <40121680+twesterhever@users.noreply.github.com>

asnbl-helper.py

@@ -181,7 +181,12 @@ def resolve_asn(ipaddr: str, asndb):
 
     # libloc cannot handle ipaddress objects here, so casting into a string is necessary
     # for good measure, to avoid exceptions here...
-    result = asndb.lookup(str(ipaddr))
+    try:
+        result = asndb.lookup(str(ipaddr))
+    except BlockingIOError:
+        # XXX: Prevent likely libloc bug from causing this helper to crash
+        # (see upstream bug https://bugzilla.ipfire.org/show_bug.cgi?id=13023)
+        pass
 
     # In case nothing was returned above, satisfy result expectation to this function...
     try: