Resolve special hostname in udp handle

Author: jpbede

tests/test_dns.py

@@ -199,6 +199,10 @@ def test_getaddrinfo_22(self):
         self._test_getaddrinfo(payload, 80)
         self._test_getaddrinfo(payload, 80, type=socket.SOCK_STREAM)
 
+    def test_getaddrinfo_broadcast(self):
+        self._test_getaddrinfo('<broadcast>', 80)
+        self._test_getaddrinfo('<broadcast>', 80, type=socket.SOCK_STREAM)
+
     ######
 
     def test_getnameinfo_1(self):

uvloop/dns.pyx

@@ -113,10 +113,6 @@ cdef __convert_pyaddr_to_sockaddr(int family, object addr,
 
         port = __port_to_int(port, None)
 
-        # resolve special hostname <broadcast> to the broadcast address
-        if host == b'<broadcast>':
-            host = b'255.255.255.255'
-
         ret.addr_size = sizeof(system.sockaddr_in)
         err = uv.uv_ip4_addr(host, <int>port, <system.sockaddr_in*>&ret.addr)
         if err < 0:

uvloop/handles/udp.pyx

@@ -208,6 +208,10 @@ cdef class UDPTransport(UVBaseTransport):
         if addr is None:
             saddr = NULL
         else:
+            # resolve special hostname <broadcast> to the broadcast address before use
+            if self._family == uv.AF_INET and addr[0] == '<broadcast>':
+                addr = (b'255.255.255.255', addr[1])
+
             try:
                 __convert_pyaddr_to_sockaddr(self._family, addr,
                                              <system.sockaddr*>&saddr_st)