1 files changed, 51 insertions, 0 deletions
diff --git a/libnetfs/file-getcontrol.c b/libnetfs/file-getcontrol.c
new file mode 100644
index 00000000..0e29ccf9
--- /dev/null
+++ b/libnetfs/file-getcontrol.c
@@ -0,0 +1,51 @@
+/* Return the filesystem corresponding to a file
+
+   Copyright (C) 1995, 1996, 2001 Free Software Foundation, Inc.
+   Written by Michael I. Bushnell, p/BSG.
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
+
+   The GNU Hurd 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
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA. */
+
+#include "netfs.h"
+#include "fs_S.h"
+#include <hurd/fshelp.h>
+
+error_t
+netfs_S_file_getcontrol (struct protid *user,
+			 mach_port_t *control,
+			 mach_msg_type_name_t *controltype)
+{
+  error_t err;
+  struct port_info *pi;
+
+  if (!user)
+    return EOPNOTSUPP;
+
+  err = fshelp_iscontroller (&netfs_root_node->nn_stat, user->user);
+  if (err)
+    return err;
+  
+  /* They've have the appropriate credentials; give it to them. */
+  err = ports_create_port (netfs_control_class, netfs_port_bucket,
+			   sizeof (struct port_info), &pi);
+  if (err)
+    return err;
+
+  *control = ports_get_right (pi);
+  *controltype = MACH_MSG_TYPE_MAKE_SEND;
+  ports_port_deref (pi);
+  return 0;
+}