diff -r 79163d48aeda -r 4689530d03b9 jdk/src/windows/classes/sun/net/PortConfig.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/src/windows/classes/sun/net/PortConfig.java Tue Nov 26 10:06:57 2013 +0000 @@ -0,0 +1,73 @@ +/* + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package sun.net; + +import java.security.AccessController; + +/** + * Determines the ephemeral port range in use on this system. + * If this cannot be determined, then the default settings + * of the OS are returned. + */ + +public final class PortConfig { + + private static int defaultUpper, defaultLower; + private final static int upper, lower; + + static { + AccessController.doPrivileged( + new java.security.PrivilegedAction() { + public Void run() { + System.loadLibrary("net"); + return null; + } + }); + + int v = getLower0(); + if (v == -1) { + v = defaultLower; + } + lower = v; + + v = getUpper0(); + if (v == -1) { + v = defaultUpper; + } + upper = v; + } + + static native int getLower0(); + static native int getUpper0(); + + public static int getLower() { + return lower; + } + + public static int getUpper() { + return upper; + } +}