def _resolve_special(hostname, family):
if not isinstance(hostname, hostname_types):
raise TypeError("argument 1 must be str, bytes or bytearray, not %s" % (type(hostname),))
if hostname in (u'', b''):
result = native_getaddrinfo(None, 0, family, SOCK_DGRAM, 0, AI_PASSIVE)
if len(result) != 1:
raise error('wildcard resolved to multiple address')
return result[0][4][0]
return hostname
def getaddrinfo(self, host, port, family=0, socktype=0, proto=0, flags=0):
host = self._hostname_to_bytes(host) if host is not None else None
if (not isinstance(host, bytes) # 1, 2
or (flags & AI_NUMERICHOST) # 3
or host in self._LOCAL_HOSTNAMES # 4
or (is_ipv6_addr(host) and host.startswith(b'fe80')) # 5
):
# This handles cases which do not require network access
# 1) host is None
# 2) host is of an invalid type
# 3) AI_NUMERICHOST flag is set
# 4) It's a well-known alias. TODO: This is special casing for c-ares that we don't
# really want to do. It's here because it resolves a discrepancy with the system
# resolvers caught by test cases. In gevent 20.4.0, this only worked correctly on
# Python 3 and not Python 2, by accident.
# 5) host is a link-local ipv6; dnspython returns the wrong
# scope-id for those.
return native_getaddrinfo(host, port, family, socktype, proto,
flags)
return self._getaddrinfo(host, port, family, socktype, proto, flags)