1 files changed, 41 insertions, 0 deletions
diff --git a/libdiskfs/file-getlinknode.c b/libdiskfs/file-getlinknode.c
new file mode 100644
index 00000000..2e284d43
--- /dev/null
+++ b/libdiskfs/file-getlinknode.c
@@ -0,0 +1,41 @@
+/* libdiskfs implementation of fs.defs: file_getlinknode
+   Copyright (C) 1992, 1993, 1994 Free Software Foundation
+
+   This program 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.
+
+   This program 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include "priv.h"
+
+/* Implement file_getlinknode as described in <hurd/fs.defs>. */
+error_t
+diskfs_S_file_getlinknode (struct protid *cred,
+			   file_t *port,
+			   mach_msg_type_name_t *portpoly)
+{
+  struct inode *np;
+
+  if (!cred)
+    return EOPNOTSUPP;
+  
+  np = cred->po->np;
+  if (np->i_number == diskfs_root_node_number)
+    return EBUSY;
+  
+  /* XXX -- this is wrong; port management code for protids
+     only allows a port to be given out once; we need to
+     send a new protid unfortunately. */
+  *port = cred->fspt.pi.port;
+  *portpoly = MACH_MSG_TYPE_MAKE_SEND;
+  return 0;
+}