Hurd: provide llistxattr

Add an implementation of llistxattr based on listxattr.

diff --git a/ChangeLog b/ChangeLog
index 03baa697ef909eb228c0a326b281ede1c0702b2f..dda1dc623d41f1b74f42c2a7c27ccdea83b1beac 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,6 +4,9 @@
        (__sendto): Use create_address_port.  Initialize APORT and deallocate
        it if not null.
 
+       * sysdeps/mach/hurd/llistxattr.c: New file, copied from listxattr.c
+       with O_NOLINK passed to __file_name_lookup.
+
 2012-07-20  Joseph Myers  <joseph@codesourcery.com>
 
        * elf/Makefile (check-data): Remove.

diff --git a/sysdeps/mach/hurd/llistxattr.c b/sysdeps/mach/hurd/llistxattr.c
new file mode 100644 (file)
index 0000000..23fb165
--- /dev/null
+++ b/sysdeps/mach/hurd/llistxattr.c
@@ -0,0 +1,35 @@
+/* Access to extended attributes on files.  Hurd version.
+   Copyright (C) 2005-2012 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <sys/xattr.h>
+#include <hurd.h>
+#include <hurd/xattr.h>
+#include <fcntl.h>
+
+ssize_t
+llistxattr (const char *path, char *list, size_t size)
+{
+  error_t err;
+  file_t port = __file_name_lookup (path, O_NOLINK, 0);
+  if (port == MACH_PORT_NULL)
+    return -1;
+  err = _hurd_xattr_list (port, list, &size);
+  __mach_port_deallocate (__mach_task_self (), port);
+  return err ? __hurd_fail (err) : size;
+}