3261N/A * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. 893N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 893N/A * This code is free software; you can redistribute it and/or modify it 893N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 893N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 893N/A * This code is distributed in the hope that it will be useful, but WITHOUT 893N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 893N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 893N/A * version 2 for more details (a copy is included in the LICENSE file that 893N/A * accompanied this code). 893N/A * You should have received a copy of the GNU General Public License version 893N/A * 2 along with this work; if not, write to the Free Software Foundation, 893N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 893N/A * Linux implementation of FileStore 893N/A // used when checking if extended attributes are enabled or not 893N/A * Finds, and returns, the mount entry for the file system where the file 893N/A // step 1: get realpath 893N/A // step 2: find mount point 893N/A // returns true if extended attributes enabled on file system where given 893N/A // file resides, returns false if disabled or unable to determine. 893N/A // fgetxattr returns size if called with size==0 893N/A // attribute does not exist 1319N/A // support DosFileAttributeView and UserDefinedAttributeView if extended 893N/A // if file system is mounted with user_xattr option then assume 893N/A // extended attributes are enabled 893N/A // user_xattr option not present but we special-case ext3/4 as we 893N/A // know that extended attributes are not enabled by default. 893N/A // not ext3/4 so probe mount point