From fbdb58363aae50984d8670f4ef3f68ddc96b32e9 Mon Sep 17 00:00:00 2001
From: "Michael I. Bushnell" <mib@gnu.org>
Date: Fri, 10 May 1996 21:21:19 +0000
Subject: Initial revision
---
libdiskfs/io-identity.c | 61 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 61 insertions(+)
create mode 100644 libdiskfs/io-identity.c
(limited to 'libdiskfs/io-identity.c')
diff --git a/libdiskfs/io-identity.c b/libdiskfs/io-identity.c
new file mode 100644
index 00000000..6bc6f86c
--- /dev/null
+++ b/libdiskfs/io-identity.c
@@ -0,0 +1,61 @@
+/* libdiskfs implementation of io_identity RPC
+ Copyright (C) 1996 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 "priv.h"
+#include "io_S.h"
+
+/* Implement io_identity as described in <hurd/io.defs>. */
+error_t
+diskfs_S_io_identity (struct protid *cred,
+ mach_port_t *id,
+ mach_msg_type_name_t *idtype,
+ mach_port_t *fsys,
+ mach_msg_type_name_t *fsystype,
+ int *fileno)
+{
+ struct node *np;
+ error_t err;
+
+ if (!cred)
+ return EOPNOTSUPP;
+
+ np = cred->po->np;
+ mutex_lock (&np->lock);
+
+ if (np->identity == MACH_PORT_NULL)
+ {
+ err = mach_port_allocate (mach_task_self (), MACH_PORT_RIGHT_RECEIVE,
+ &np->identity);
+ if (err)
+ {
+ mutex_unlock (&np->lock);
+ return err;
+ }
+ }
+
+ *id = np->identity;
+ *idtype = MACH_MSG_TYPE_MAKE_SEND;
+ *fsys = diskfs_fsys_identity;
+ *fsystype = MACH_MSG_TYPE_MAKE_SEND;
+ *fileno = np->dn_stat.st_ino;
+
+ mutex_unlock (&np->lock);
+ return 0;
+}
--
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