diff -up cups-1.3.9/scheduler/client.c.str2988 cups-1.3.9/scheduler/client.c
--- cups-1.3.9/scheduler/client.c.str2988	2008-09-17 01:42:56.000000000 +0100
+++ cups-1.3.9/scheduler/client.c	2008-11-13 10:09:05.000000000 +0000
@@ -1011,6 +1011,15 @@ cupsdReadClient(cupsd_client_t *con)	/* 
 	break;
 
     default :
+        if (!data_ready(con) && recv(con->http.fd, buf, 1, MSG_PEEK) < 1)
+	{
+	 /*
+	  * Connection closed...
+	  */
+
+          cupsdCloseClient(con);
+	  return;
+	}
         break; /* Anti-compiler-warning-code */
   }