Problem: bug in tipc_listener_t::set_address, random port is determined but not used

Solution: assign result to address

Fixes #3376

src/tipc_listener.cpp

@@ -166,7 +166,7 @@ int zmq::tipc_listener_t::set_address (const char *addr_)
         if (rc != 0)
             goto error;
 
-        tipc_address_t addr ((struct sockaddr *) &ss, sl);
+        address = tipc_address_t ((struct sockaddr *) &ss, sl);
     }
 
 

tests/test_address_tipc.cpp

@@ -91,6 +91,9 @@ void test_tipc_port_identity ()
     rc = sscanf (&endpoint[0], "tipc://<%u.%u.%u:%u>", &z, &c, &n, &ref);
     TEST_ASSERT_EQUAL_INT (4, rc);
 
+    TEST_ASSERT_NOT_EQUAL_MESSAGE (
+      0, ref, "tipc port number must not be 0 after random assignment");
+
     rc = zmq_connect (sc, endpoint);
     TEST_ASSERT_EQUAL_INT (0, rc);