Index: cups/http-addr.c
===================================================================
--- cups/http-addr.c	(revision 9862)
+++ cups/http-addr.c	(working copy)
@@ -366,7 +366,12 @@
 
 #ifdef AF_LOCAL
   if (addr->addr.sa_family == AF_LOCAL)
-    strlcpy(s, addr->un.sun_path, slen);
+  {
+    if (addr->un.sun_path[0] == '/')
+      strlcpy(s, addr->un.sun_path, slen);
+    else
+      strlcpy(s, "localhost", slen);
+  }
   else
 #endif /* AF_LOCAL */
   if (addr->addr.sa_family == AF_INET)