--- /dev/null
+--- cups-1.1.23/scheduler/ipp.c.orig 2005-01-03 20:29:59.000000000 +0100
++++ cups-1.1.23/scheduler/ipp.c 2005-10-17 14:20:24.000000000 +0200
+@@ -6792,7 +6792,9 @@
+ struct passwd *user; /* User info */
+ struct group *group; /* System group info */
+ char junk[33]; /* MD5 password (not used) */
++ location_t *loc; /* Authentication location */
+
++ loc = FindBest(con->uri, con->http.state);
+
+ LogMessage(L_DEBUG2, "validate_user(%p[%d], \"%s\", %p, %d)\n",
+ con, con->http.fd, owner, username, userlen);
+@@ -6801,6 +6803,9 @@
+ * Validate input...
+ */
+
++ if (loc->type == AUTH_NONE)
++ return (1);
++
+ if (con == NULL || owner == NULL || username == NULL || userlen <= 0)
+ return (0);
+