| Subject: | Warning: "The program has attempted to call the method 'answerfrom' ..." |
I'm using Net::RBLClient in Courier::Filter::Module::DNSBL (see CPAN), I today I got the following error message (which has obviously been generated by Net::DNS):
***
*** WARNING!!! The program has attempted to call the method
*** "answerfrom" for the following RR object:
***
*** 210.153.204.210.dnsbl.njabl.org.^I21600^IIN^ITXT^I"open proxy -- 1093916402"
***
*** This object doesn't have a method "answerfrom". THIS IS A BUG
*** IN THE CALLING SOFTWARE, which has incorrectly assumed that
*** the object would be of a particular type. The calling
*** software should check the type of each RR object before
*** calling any of its methods.
***
*** Net::DNS has returned undef to the caller.
***
at /usr/share/perl5/Net/RBLClient.pm line 153
Use of uninitialized value in concatenation (.) or string at
^I/usr/share/perl5/Net/RBLClient.pm line 153 (#1)
The IP address being checked was 210.204.153.210, and the DNS RBL obviously was dnsbl.njabl.org.
I think Net::RBLClient is doing something wrong here, though I haven't investigated more closely what it is.
This is the first time I have seen this error, and Courier::Filter::Module::DNSBL and Net::RBLClient otherwise work correctly.