--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/windows/native/sun/net/portconfig.c	Tue Nov 26 10:06:57 2013 +0000
@@ -0,0 +1,107 @@
+/*
+ * 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.
+ */
+
+#include <windows.h>
+#include "jni.h"
+#include "net_util.h"
+#include "sun_net_PortConfig.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct portrange {
+    int lower;
+    int higher;
+};
+
+static int getPortRange(struct portrange *range)
+{
+    OSVERSIONINFO ver;
+    ver.dwOSVersionInfoSize = sizeof(ver);
+    GetVersionEx(&ver);
+
+    /* Check for major version 5 or less = Windows XP/2003 or older */
+    if (ver.dwMajorVersion <= 5) {
+        LONG ret;
+        HKEY hKey;
+        range->lower = 1024;
+        range->higher = 4999;
+
+        /* check registry to see if upper limit was raised */
+        ret = RegOpenKeyEx(HKEY_LOCAL_MACHINE,
+                   "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters",
+                   0, KEY_READ, (PHKEY)&hKey
+        );
+        if (ret == ERROR_SUCCESS) {
+            DWORD maxuserport;
+            ULONG ulType;
+            DWORD dwLen = sizeof(maxuserport);
+            ret = RegQueryValueEx(hKey, "MaxUserPort",  NULL, &ulType,
+                             (LPBYTE)&maxuserport, &dwLen);
+            RegCloseKey(hKey);
+            if (ret == ERROR_SUCCESS) {
+                range->higher = maxuserport;
+            }
+        }
+    } else {
+        /* There doesn't seem to be an API to access this. "MaxUserPort"
+          * is affected, but is not sufficient to determine.
+         * so we just use the defaults, which are less likely to change
+          */
+        range->lower = 49152;
+        range->higher = 65535;
+    }
+    return 0;
+}
+
+/*
+ * Class:     sun_net_PortConfig
+ * Method:    getLower0
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL Java_sun_net_PortConfig_getLower0
+  (JNIEnv *env, jclass clazz)
+{
+    struct portrange range;
+    getPortRange(&range);
+    return range.lower;
+}
+
+/*
+ * Class:     sun_net_PortConfig
+ * Method:    getUpper0
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL Java_sun_net_PortConfig_getUpper0
+  (JNIEnv *env, jclass clazz)
+{
+    struct portrange range;
+    getPortRange(&range);
+    return range.higher;
+}
+#ifdef __cplusplus
+}
+#endif