diff options
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/ipaddress.py | 10 | ||||
| -rw-r--r-- | Lib/test/test_ipaddress.py | 8 |
2 files changed, 18 insertions, 0 deletions
diff --git a/Lib/ipaddress.py b/Lib/ipaddress.py index 68ddfbe..e398cc1 100644 --- a/Lib/ipaddress.py +++ b/Lib/ipaddress.py @@ -1389,6 +1389,16 @@ class IPv4Address(_BaseV4, _BaseAddress): """ return self in self._constants._linklocal_network + @property + def ipv6_mapped(self): + """Return the IPv4-mapped IPv6 address. + + Returns: + The IPv4-mapped IPv6 address per RFC 4291. + + """ + return IPv6Address(f'::ffff:{self}') + class IPv4Interface(IPv4Address): diff --git a/Lib/test/test_ipaddress.py b/Lib/test/test_ipaddress.py index 33a0f98..b4952ac 100644 --- a/Lib/test/test_ipaddress.py +++ b/Lib/test/test_ipaddress.py @@ -303,6 +303,14 @@ class AddressTestCase_v4(BaseTestCase, CommonTestMixin_v4): def test_weakref(self): weakref.ref(self.factory('192.0.2.1')) + def test_ipv6_mapped(self): + self.assertEqual(ipaddress.IPv4Address('192.168.1.1').ipv6_mapped, + ipaddress.IPv6Address('::ffff:192.168.1.1')) + self.assertEqual(ipaddress.IPv4Address('192.168.1.1').ipv6_mapped, + ipaddress.IPv6Address('::ffff:c0a8:101')) + self.assertEqual(ipaddress.IPv4Address('192.168.1.1').ipv6_mapped.ipv4_mapped, + ipaddress.IPv4Address('192.168.1.1')) + class AddressTestCase_v6(BaseTestCase, CommonTestMixin_v6): factory = ipaddress.IPv6Address |