/usr/lib/python3/dist-packages/pysnmp/proto/api/verdec.py is in python3-pysnmp4 4.3.2-2.
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# This file is part of pysnmp software.
#
# Copyright (c) 2005-2016, Ilya Etingof <ilya@glas.net>
# License: http://pysnmp.sf.net/license.html
#
from pyasn1.type import univ
from pyasn1.codec.ber import decoder, eoo
from pyasn1.error import PyAsn1Error
from pysnmp.proto.error import ProtocolError
def decodeMessageVersion(wholeMsg):
try:
seq, wholeMsg = decoder.decode(
wholeMsg, asn1Spec=univ.Sequence(), recursiveFlag=0
)
ver, wholeMsg = decoder.decode(
wholeMsg, asn1Spec=univ.Integer(), recursiveFlag=0
)
if eoo.endOfOctets.isSameTypeWith(ver):
raise ProtocolError('EOO at SNMP version component')
return ver
except PyAsn1Error:
raise ProtocolError('Invalid BER at SNMP version component')
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