From 95b2e875b680c66de7b61915a9c7b075de88bc4a Mon Sep 17 00:00:00 2001 From: "Michael I. Bushnell" 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 . */ +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; +} -- cgit v1.2.3