From 95b2e875b680c66de7b61915a9c7b075de88bc4a Mon Sep 17 00:00:00 2001
From: "Michael I. Bushnell" <mib@gnu.org>
Date: Mon, 31 Jan 1994 20:25:06 +0000
Subject: Initial revision
---
libdiskfs/file-getlinknode.c | 41 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
create mode 100644 libdiskfs/file-getlinknode.c
(limited to 'libdiskfs/file-getlinknode.c')
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;
+}
--
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