--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/druntime/import/core/sys/posix/sys/uio.d	Tue Jun 02 17:43:06 2009 +0100
@@ -0,0 +1,70 @@
+/**
+ * D header file for POSIX.
+ *
+ * Copyright: Copyright Sean Kelly 2005 - 2009.
+ * License:   <a href="http://www.boost.org/LICENSE_1_0.txt>Boost License 1.0</a>.
+ * Authors:   Sean Kelly
+ * Standards: The Open Group Base Specifications Issue 6, IEEE Std 1003.1, 2004 Edition
+ *
+ *          Copyright Sean Kelly 2005 - 2009.
+ * Distributed under the Boost Software License, Version 1.0.
+ *    (See accompanying file LICENSE_1_0.txt or copy at
+ *          http://www.boost.org/LICENSE_1_0.txt)
+ */
+module core.sys.posix.sys.uio;
+
+private import core.sys.posix.config;
+public import core.sys.posix.sys.types; // for ssize_t, size_t
+
+extern (C):
+
+//
+// Required
+//
+/*
+struct iovec
+{
+    void*  iov_base;
+    size_t iov_len;
+}
+
+ssize_t // from core.sys.posix.sys.types
+size_t  // from core.sys.posix.sys.types
+
+ssize_t readv(int, in iovec*, int);
+ssize_t writev(int, in iovec*, int);
+*/
+
+version( linux )
+{
+    struct iovec
+    {
+        void*  iov_base;
+        size_t iov_len;
+    }
+
+    ssize_t readv(int, in iovec*, int);
+    ssize_t writev(int, in iovec*, int);
+}
+else version( OSX )
+{
+    struct iovec
+    {
+        void*  iov_base;
+        size_t iov_len;
+    }
+
+    ssize_t readv(int, in iovec*, int);
+    ssize_t writev(int, in iovec*, int);
+}
+else version( freebsd )
+{
+    struct iovec
+    {
+        void*  iov_base;
+        size_t iov_len;
+    }
+
+    ssize_t readv(int, in iovec*, int);
+    ssize_t writev(int, in iovec*, int);
+}