--- tcp_wrappers_7.6-ipv6.4/socket.c.patch7	1999-10-27 15:23:14.000000000 +0200
+++ tcp_wrappers_7.6-ipv6.4/socket.c	2013-01-23 11:41:48.776857327 +0100
@@ -54,6 +54,8 @@ int af;
 {
     char    dot_name[MAXHOSTNAMELEN + 1];
 
+    struct hostent *hp;
+
     /*
      * Don't append dots to unqualified names. Such names are likely to come
      * from local hosts files or from NIS.
@@ -62,8 +64,13 @@ int af;
     if (strchr(name, '.') == 0 || strlen(name) >= MAXHOSTNAMELEN - 1) {
 	return (tcpd_gethostbyname(name, af));
     } else {
-	sprintf(dot_name, "%s.", name);
-	return (tcpd_gethostbyname(dot_name, af));
+        sprintf(dot_name, "%s.", name);
+        hp = tcpd_gethostbyname(dot_name, af);
+        if (hp)
+            return hp;
+
+        else
+            return tcpd_gethostbyname(name, af);
     }
 }