sysdeps/mach/hurd/lgetxattr.c

   1 /* Access to extended attributes on files.  Hurd version.
   2    Copyright (C) 2004-2018 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <sys/xattr.h>
  21 #include <hurd.h>
  22 #include <hurd/xattr.h>
  23 #include <fcntl.h>
  24
  25 ssize_t
  26 lgetxattr (const char *path, const char *name, void *value, size_t size)
  27 {
  28   error_t err;
  29   file_t port = __file_name_lookup (path, O_NOLINK, 0);
  30   if (port == MACH_PORT_NULL)
  31     return -1;
  32   err = _hurd_xattr_get (port, name, value, &size);
  33   __mach_port_deallocate (__mach_task_self (), port);
  34   return err ? __hurd_fail (err) : size;
  35 }