from weakref import proxy
import signal
+def try_address(host, port=0, family=socket.AF_INET):
+ """Try to bind a socket on the given host:port and return True
+ if that has been possible."""
+ try:
+ sock = socket.socket(family, socket.SOCK_STREAM)
+ sock.bind((host, port))
+ except (socket.error, socket.gaierror):
+ return False
+ else:
+ sock.close()
+ return True
+
HOST = support.HOST
MSG = b'Michael Gilfix was here\n'
+SUPPORTS_IPV6 = socket.has_ipv6 and try_address('::1', family=socket.AF_INET6)
class SocketTCPTest(unittest.TestCase):
self.assertTrue(hasattr(socket, 'RCVALL_ON'))
self.assertTrue(hasattr(socket, 'RCVALL_OFF'))
+ def testGetaddrinfo(self):
+ try:
+ socket.getaddrinfo('localhost', 80)
+ except socket.gaierror as err:
+ if err.errno == socket.EAI_SERVICE:
+ # see http://bugs.python.org/issue1282647
+ self.skipTest("buggy libc version")
+ raise
+ # len of every sequence is supposed to be == 5
+ for info in socket.getaddrinfo(HOST, None):
+ self.assertEqual(len(info), 5)
+ # host can be a domain name, a string representation of an
+ # IPv4/v6 address or None
+ socket.getaddrinfo('localhost', 80)
+ socket.getaddrinfo('127.0.0.1', 80)
+ socket.getaddrinfo(None, 80)
+ if SUPPORTS_IPV6:
+ socket.getaddrinfo('::1', 80)
+ # port can be a string service name such as "http", a numeric
+ # port number or None
+ socket.getaddrinfo(HOST, "http")
+ socket.getaddrinfo(HOST, 80)
+ socket.getaddrinfo(HOST, None)
+ # test family and socktype filters
+ infos = socket.getaddrinfo(HOST, None, socket.AF_INET)
+ for family, _, _, _, _ in infos:
+ self.assertEqual(family, socket.AF_INET)
+ infos = socket.getaddrinfo(HOST, None, 0, socket.SOCK_STREAM)
+ for _, socktype, _, _, _ in infos:
+ self.assertEqual(socktype, socket.SOCK_STREAM)
+ # test proto and flags arguments
+ socket.getaddrinfo(HOST, None, 0, 0, socket.AI_CANONNAME)
+ socket.getaddrinfo(HOST, None, 0, 0, 0, socket.AI_PASSIVE)
+ # a server willing to support both IPv4 and IPv6 will
+ # usually do this
+ socket.getaddrinfo(None, 0, socket.AF_UNSPEC, socket.SOCK_STREAM, 0,
+ socket.AI_PASSIVE)
+
class BasicTCPTest(SocketConnectedTest):