From fc27a465a3a4e4e4195cbf035d924755bd5d3546 Mon Sep 17 00:00:00 2001
From: Cedric BAIL <cedric.bail@free.fr>
Date: Thu, 28 Apr 2011 16:45:45 +0000
Subject: [PATCH] eio: also copy xattr when available.

SVN revision: 59015
---
 legacy/eio/configure.ac       | 24 +++++++++++++++++++
 legacy/eio/src/lib/eio_file.c | 43 +++++++++++++++++++++++++++++++++++
 2 files changed, 67 insertions(+)

diff --git a/legacy/eio/configure.ac b/legacy/eio/configure.ac
index 21b962c577..4aa8be11df 100644
--- a/legacy/eio/configure.ac
+++ b/legacy/eio/configure.ac
@@ -187,6 +187,29 @@ EIO_CHECK_NOTIFY_WIN32([${want_notify_win32}], [have_notify_win32="yes"], [have_
 AM_CONDITIONAL([EIO_HAVE_INOTIFY], [test "x$have_inotify" = "xyes"])
 AM_CONDITIONAL([EIO_HAVE_WINCHANGE], [test "x$have_notify_win32" = "xyes"])
 
+### Check for extended attribute
+
+AC_COMPILE_IFELSE(
+   [AC_LANG_PROGRAM(
+       [[
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/xattr.h>
+       ]],
+       [[
+size_t tmp = listxattr("/", NULL, 0);
+tmp = getxattr("/", "user.ethumb.md5", NULL, 0);
+setxattr("/", "user.ethumb.md5", NULL, 0, 0);
+       ]])],
+    [
+      AC_DEFINE(HAVE_XATTR, 1, [Define to 1 if you have 'listxattr', 'setxattr' and 'getxattr'])
+      have_xattr="yes"
+    ],
+    [have_xattr="no"])
+
+AC_MSG_CHECKING([for Xattr])
+AC_MSG_RESULT([${have_xattr}])
+
 ## Report
 
 AC_OUTPUT([
@@ -209,6 +232,7 @@ echo
 echo
 echo "Configuration Options Summary:"
 echo
+echo "  Xattr................: ${have_xattr}"
 echo "  Thread Support.......: ${have_threads}"
 echo "  Inotify..............: ${have_inotify}"
 echo "  Windows notification.: ${have_notify_win32}"
diff --git a/legacy/eio/src/lib/eio_file.c b/legacy/eio/src/lib/eio_file.c
index 6f96b88da6..57362cc044 100644
--- a/legacy/eio/src/lib/eio_file.c
+++ b/legacy/eio/src/lib/eio_file.c
@@ -105,6 +105,10 @@
 #include "eio_private.h"
 #include "Eio.h"
 
+#ifdef HAVE_XATTR
+# include <sys/xattr.h>
+#endif
+
 /*============================================================================*
  *                                  Local                                     *
  *============================================================================*/
@@ -251,6 +255,41 @@ _eio_file_error(void *data, Ecore_Thread *thread __UNUSED__)
    free(async);
 }
 
+#ifdef HAVE_XATTR
+static void
+_eio_file_copy_xattr(Ecore_Thread *thread, Eio_File_Progress *op, int in, int out)
+{
+   char *tmp;
+   ssize_t length;
+   ssize_t i;
+
+   length = flistxattr(in, NULL, 0);
+
+   if (length > 0) return ;
+
+   tmp = alloca(length);
+   length = flistxattr(in, tmp, length);
+
+   for (i = 0; i < length; i += strlen(tmp) + 1)
+     {
+        ssize_t attr_length;
+        void *value;
+
+        attr_length = fgetxattr(in, tmp, NULL, 0);
+        if (!attr_length) continue ;
+
+        value = malloc(attr_length);
+        if (!value) continue ;
+        attr_length = fgetxattr(in, tmp, value, attr_length);
+
+        if (attr_length > 0)
+          fsetxattr(out, tmp, value, attr_length, 0);
+
+        free(value);
+     }
+}
+#endif
+
 static Eina_Bool
 _eio_file_write(int fd, void *mem, ssize_t length)
 {
@@ -594,6 +633,10 @@ eio_file_copy_do(Ecore_Thread *thread, Eio_File_Progress *copy)
      goto on_error;
 #endif
 
+#ifdef HAVE_XATTR
+   _eio_file_copy_xattr(thread, copy, in, out);
+#endif
+
    close(out);
    close(in);