I'm getting IndexError when reading message from wire in a response
from servers that don't handle EDNS well:
File "/usr/lib/pymodules/python2.6/dns/query.py", line 253, in tcp
one_rr_per_rrset=one_rr_per_rrset)
File "/usr/lib/pymodules/python2.6/dns/message.py", line 775, in from_wire
reader.read()
File "/usr/lib/pymodules/python2.6/dns/message.py", line 720, in read
self._get_section(self.message.additional, adcount)
File "/usr/lib/pymodules/python2.6/dns/message.py", line 624, in _get_section
(name, used) = dns.name.from_wire(self.wire, self.current)
File "/usr/lib/pymodules/python2.6/dns/name.py", line 676, in from_wire
count = ord(message[current])
IndexError: string index out of range
Example:
$ dig +edns=0 @81.174.68.5 m54tdea2og.mail1.unbit.it. A
vs.
$ dig @81.174.68.5 m54tdea2og.mail1.unbit.it. A
I've worked around it until now, but It would be great if this
IndexError could be caught and re-raised as some type of formerror or
something else appropriate.
thanks,
Casey
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