1 /*
2 * Copyright (c) 2008, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
52 int dot = filename.lastIndexOf('.');
53 if ((dot < 0) || (dot == (filename.length()-1)))
54 return null;
55
56 // query HKEY_CLASSES_ROOT\<ext>
57 String key = filename.substring(dot);
58 NativeBuffer keyBuffer = WindowsNativeDispatcher.asNativeBuffer(key);
59 NativeBuffer nameBuffer = WindowsNativeDispatcher.asNativeBuffer("Content Type");
60 try {
61 return queryStringValue(keyBuffer.address(), nameBuffer.address());
62 } finally {
63 nameBuffer.release();
64 keyBuffer.release();
65 }
66 }
67
68 private static native String queryStringValue(long subKey, long name);
69
70 static {
71 // nio.dll has dependency on net.dll
72 jdk.internal.loader.BootLoader.loadLibrary("net");
73 jdk.internal.loader.BootLoader.loadLibrary("nio");
74 }
75 }
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1 /*
2 * Copyright (c) 2008, 2020, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
52 int dot = filename.lastIndexOf('.');
53 if ((dot < 0) || (dot == (filename.length()-1)))
54 return null;
55
56 // query HKEY_CLASSES_ROOT\<ext>
57 String key = filename.substring(dot);
58 NativeBuffer keyBuffer = WindowsNativeDispatcher.asNativeBuffer(key);
59 NativeBuffer nameBuffer = WindowsNativeDispatcher.asNativeBuffer("Content Type");
60 try {
61 return queryStringValue(keyBuffer.address(), nameBuffer.address());
62 } finally {
63 nameBuffer.release();
64 keyBuffer.release();
65 }
66 }
67
68 private static native String queryStringValue(long subKey, long name);
69
70 static {
71 // nio.dll has dependency on net.dll
72 sun.security.action.LoadLibraryAction.privilegedLoadLibrary("net");
73 sun.security.action.LoadLibraryAction.privilegedLoadLibrary("nio");
74 }
75 }
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