diff -up tcp_wrappers_7.6/hosts_access.c.patch21 tcp_wrappers_7.6/hosts_access.c
--- tcp_wrappers_7.6/hosts_access.c.patch21	2008-08-29 09:45:12.000000000 +0200
+++ tcp_wrappers_7.6/hosts_access.c	2008-08-29 09:45:12.000000000 +0200
@@ -346,6 +346,9 @@ char   *string;
 	return (STR_NE(string, unknown));
     } else if (tok[(n = strlen(tok)) - 1] == '.') {	/* prefix */
 	return (STRN_EQ(tok, string, n));
+    } else if ((STR_EQ(tok, "localhost") || STR_EQ(tok, "localhost.localdomain"))
+	    && (STR_EQ(string, "localhost") || STR_EQ(string, "localhost.localdomain"))) {
+	return (YES); /* these localhosts are equivalent */
     } else {					/* exact match */
 #ifdef INET6
 	struct addrinfo hints, *res;