$NetBSD: patch-af,v 1.1.1.1 2005/03/06 16:36:08 taca Exp $

--- ext/socket/socket.c.orig	2002-11-01 03:40:11.000000000 +0900
+++ ext/socket/socket.c
@@ -585,6 +585,23 @@ ip_addrsetup(host, port)
 	rb_raise(rb_eSocket, "getaddrinfo: %s", gai_strerror(error));
     }
 
+#if defined(__APPLE__) && defined(__MACH__)
+    {
+	struct addrinfo *r;
+	r = res;
+	while (r) {
+	    if (! r->ai_socktype) r->ai_socktype = hints.ai_socktype;
+	    if (! r->ai_protocol) {
+		if (r->ai_socktype == SOCK_DGRAM) {
+		    r->ai_protocol = IPPROTO_UDP;
+		} else if (r->ai_socktype == SOCK_STREAM) {
+		    r->ai_protocol = IPPROTO_TCP;
+		}
+	    }
+	    r = r->ai_next;
+	}
+    }
+#endif
     return res;
 }