Example #1
0
 def _findStatic(berTLVArray, bTLVOff, berTagArray, bTagOff):
     tlv = BERTLV.getInstance(berTLVArray, bTLVOff)
     firstOff = bTLVOff + tlv.getTag().size() + getLengthLen(tlv.getLength())
     if berTagArray is None:
         if tlv.getLength() > 0:
             # return the first one
             return firstOff
         else:
             return -1
     offset = tlv._find(BERTag.getInstance(berTagArray, bTagOff))
     if offset == -1:
         return -1
     return firstOff + offset
Example #2
0
 def getInstance(bArray, bOff, bLen = None):
     if bLen is None:
         # This is a trick of mine, the JC framework will anyway always
         # call it will three arguments  
         bLen = BERTLV.getLength(bArray, bOff)
     tag = BERTag.getInstance(bArray, bOff)
     if tag.isConstructed():
         tlv = ConstructedBERTLV(0)
     else:
         tlv = PrimitiveBERTLV(0)
     bOff += tag.size()
     l, length = _getLength(bArray[bOff:])
     # this calls the init method of the child class, not BERTLV
     tlv.init(tag, bArray, bOff + l, bLen - tag.size() - l)
     return tlv
Example #3
0
 def _findNextStatic(berTLVArray, bTLVOff, startOffset, berTagArray, bTagOff):
     tlv = BERTLV.getInstance(berTLVArray, bTLVOff)
     firstOff = bTLVOff + tlv.getTag().size() + getLengthLen(tlv.getLength())
     # startOffset dos not has to be right on it ...
     correctStartOff = 0
     while firstOff + correctStartOff < startOffset:
         correctStartOff = tlv._find(None, correctStartOff)
         if correctStartOff == -1:
             return -1
     startOffset = correctStartOff
     nextOff = tlv._find(None, startOff)
     if berTagArray is None:
         return firstOff + nextOff
     offset = tlv._find(BERTag.getInstance(berTagArray, bTagOff), nextOff)
     if offset == -1:
         return -1
     return firstOff + offset
Example #4
0
 def _getLengthStatic(berTLVArray, bOff):
     tag = BERTag.getInstance(berTLVArray, bOff)
     lenOff = bOff + tag.size()
     (llen, length) = _getLength(berTLVArray[lenOff:])
     return tag.size() + llen + length