def decode_name(self):
"""
Decode label at current offset in buffer (following pointers
to cached elements where necessary)
"""
label = []
done = False
while not done:
(len,) = self.unpack("!B")
if get_bits(len,6,2) == 3:
# Pointer
self.offset -= 1
pointer = get_bits(self.unpack("!H")[0],0,14)
save = self.offset
self.offset = pointer
label.extend(self.decode_name().label)
self.offset = save
done = True
else:
if len > 0:
label.append(self.get(len))
else:
done = True
return DNSLabel(label)
def decode_name(self):
"""
Decode label at current offset in buffer (following pointers
to cached elements where necessary)
"""
label = []
done = False
while not done:
(len, ) = self.unpack("!B")
if get_bits(len, 6, 2) == 3:
# Pointer
self.offset -= 1
pointer = get_bits(self.unpack("!H")[0], 0, 14)
save = self.offset
self.offset = pointer
label.extend(self.decode_name().label)
self.offset = save
done = True
else:
if len > 0:
label.append(self.get(len))
else:
done = True
return DNSLabel(label)
def get_rcode(self):
return get_bits(self.bitmap,0,4)
def get_ra(self):
return get_bits(self.bitmap,7)
def get_rd(self):
return get_bits(self.bitmap,8)
def get_tc(self):
return get_bits(self.bitmap,9)
def get_aa(self):
return get_bits(self.bitmap,10)
def get_opcode(self):
return get_bits(self.bitmap,11,4)
def get_qr(self):
return get_bits(self.bitmap,15)
def get_rcode(self):
return get_bits(self.bitmap, 0, 4)
def get_ra(self):
return get_bits(self.bitmap, 7)
def get_rd(self):
return get_bits(self.bitmap, 8)
def get_tc(self):
return get_bits(self.bitmap, 9)
def get_aa(self):
return get_bits(self.bitmap, 10)
def get_opcode(self):
return get_bits(self.bitmap, 11, 4)
def get_qr(self):
return get_bits(self.bitmap, 15)