def parse(cls, payload, offset):
name, offset = parse_name(payload, offset)
resource = unpack('>H', payload[offset:offset + 2])[0]
offset += 2
c = unpack('>H', payload[offset:offset + 2])[0]
offset += 2
return cls(name, resource=Resource.find(value=resource), cls=find_class(c)), offset
def parse(cls, payload, offset, length):
mname, offset = parse_name(payload, offset)
rname, offset = parse_name(payload, offset)
serial = unpack('>I', payload[offset:offset + 4])[0]
offset += 4
refresh = unpack('>i', payload[offset:offset + 4])[0]
offset += 4
retry = unpack('>i', payload[offset:offset + 4])[0]
offset += 4
expire = unpack('>i', payload[offset:offset + 4])[0]
offset += 4
minimum = unpack('>i', payload[offset:offset + 4])[0]
offset += 4
return cls(mname, rname, serial, refresh, retry, expire, minimum)
def parse(cls, payload, offset, length):
mname, offset = parse_name(payload, offset)
rname, offset = parse_name(payload, offset)
serial = unpack('>I', payload[offset:offset + 4])[0]
offset += 4
refresh = unpack('>i', payload[offset:offset + 4])[0]
offset += 4
retry = unpack('>i', payload[offset:offset + 4])[0]
offset += 4
expire = unpack('>i', payload[offset:offset + 4])[0]
offset += 4
minimum = unpack('>i', payload[offset:offset + 4])[0]
offset += 4
return cls(mname, rname, serial, refresh, retry, expire, minimum)
def parse(cls, payload, offset, length):
ns = parse_name(payload, offset)[0]
return cls(ns)
def parse(cls, payload, offset, length):
preference = unpack('>H', payload[offset:offset + 2])[0]
offset += 2
name = parse_name(payload, offset)[0]
return cls(name, preference)
def test_recursion(self):
payload = b'\x05apple\x03com\x00\ndevelopers' + pack('>H', (0xc000 | 0))
self.assertEqual(parse_name(payload, 11)[0], 'developers.apple.com')
def test_empty(self):
self.assertEqual(pack_name(''), b'\x00')
self.assertEqual(parse_name(b'\x00', 0)[0], '')
def parse(cls, payload, offset, length):
ns = parse_name(payload, offset)[0]
return cls(ns)
def parse(cls, payload, offset, length):
preference = unpack('>H', payload[offset:offset + 2])[0]
offset += 2
name = parse_name(payload, offset)[0]
return cls(name, preference)
def test_recursion(self):
payload = b'\x05apple\x03com\x00\ndevelopers' + pack(
'>H', (0xc000 | 0))
self.assertEqual(parse_name(payload, 11)[0], 'developers.apple.com')
def test_empty(self):
self.assertEqual(pack_name(''), b'\x00')
self.assertEqual(parse_name(b'\x00', 0)[0], '')
