Implement binding for extended file attributes handling on Linux.

contrib/platform/src/com/sun/jna/platform/linux/XAttr.java

@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2018 Václav Haisman, All Rights Reserved
+ *
+ * The contents of this file is dual-licensed under 2
+ * alternative Open Source/Free licenses: LGPL 2.1 or later and
+ * Apache License 2.0.
+ *
+ * You can freely decide which license you want to apply to
+ * the project.
+ *
+ * You may obtain a copy of the LGPL License at:
+ *
+ * http://www.gnu.org/licenses/licenses.html
+ *
+ * A copy is also included in the downloadable source code package
+ * containing JNA, in file "LGPL2.1".
+ *
+ * You may obtain a copy of the Apache License at:
+ *
+ * http://www.apache.org/licenses/
+ *
+ * A copy is also included in the downloadable source code package
+ * containing JNA, in file "AL2.0".
+ */
+package com.sun.jna.platform.linux;
+
+import com.sun.jna.IntegerType;
+import com.sun.jna.Library;
+import com.sun.jna.Native;
+import com.sun.jna.Pointer;
+
+public interface XAttr extends Library {
+    XAttr INSTANCE = Native.loadLibrary(null, XAttr.class);
+
+    class size_t extends IntegerType {
+        public static final size_t ZERO = new size_t();
+
+        private static final long serialVersionUID = 1L;
+
+        public size_t() { this(0); }
+        public size_t(long value) { super(Native.SIZE_T_SIZE, value, true); }
+    }
+
+    class ssize_t extends IntegerType {
+        public static final ssize_t ZERO = new ssize_t();
+
+        private static final long serialVersionUID = 1L;
+
+        public ssize_t() {
+            this(0);
+        }
+
+        public ssize_t(long value) {
+            super(Native.SIZE_T_SIZE, value, false);
+        }
+    }
+
+    int XATTR_CREATE = 1;
+    int XATTR_REPLACE = 2;
+
+    int EPERM = 1;
+    int E2BIG = 7;
+    int EEXIST = 17;
+    int ENOSPC = 28;
+    int ERANGE = 34;
+    int ENODATA = 61;
+    int ENOATTR = ENODATA;
+    int ENOTSUP = 95;
+    int EDQUOT = 122;
+
+    int setxattr(String path, String name, Pointer value, size_t size, int flags);
+    int lsetxattr(String path, String name, Pointer value, size_t size, int flags);
+    int fsetxattr(int fd, String name, Pointer value, size_t size, int flags);
+
+    ssize_t getxattr(String path, String name, Pointer value, size_t size);
+    ssize_t lgetxattr(String path, String name, Pointer value, size_t size);
+    ssize_t fgetxattr(int fd, String name, Pointer value, size_t size);
+
+    ssize_t listxattr(String path, Pointer list, size_t size);
+    ssize_t llistxattr(String path, Pointer list, size_t size);
+    ssize_t flistxattr(int fd, Pointer list, size_t size);
+
+    int removexattr(String path, String name);
+    int lremovexattr(String path, String name);
+    int fremovexattr(int fd, String name);
+}