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authorThomas Bushnell <thomas@gnu.org>1999-02-16 10:56:36 +0000
committerThomas Bushnell <thomas@gnu.org>1999-02-16 10:56:36 +0000
commit9819e76c6d3bda979636c1a0c079308c9fa6485c (patch)
tree7f1f98cec3dd31269a76e888b7ec2facf15ba47d /libnetfs
parentcb36bf0b4c26059d08983267026bd20c8eb98b71 (diff)
Tue Feb 16 05:37:03 1999 Thomas Bushnell, BSG <tb@mit.edu>
* io-revoke.c: New file. * Makefile (IOSRCS): Add iorevoke.c.
Diffstat (limited to 'libnetfs')
-rw-r--r--libnetfs/ChangeLog5
-rw-r--r--libnetfs/Makefile4
-rw-r--r--libnetfs/io-revoke.c61
3 files changed, 68 insertions, 2 deletions
diff --git a/libnetfs/ChangeLog b/libnetfs/ChangeLog
index 6774fa1b..dcc06694 100644
--- a/libnetfs/ChangeLog
+++ b/libnetfs/ChangeLog
@@ -1,3 +1,8 @@
+Tue Feb 16 05:37:03 1999 Thomas Bushnell, BSG <tb@mit.edu>
+
+ * io-revoke.c: New file.
+ * Makefile (IOSRCS): Add iorevoke.c.
+
Sun Jan 31 18:27:42 1999 Thomas Bushnell, BSG <tb@mit.edu>
* file-utimes.c (netfs_S_file_utimes): Understand new semantics
diff --git a/libnetfs/Makefile b/libnetfs/Makefile
index 92f223e0..26c71f63 100644
--- a/libnetfs/Makefile
+++ b/libnetfs/Makefile
@@ -1,5 +1,5 @@
#
-# Copyright (C) 1995, 1996, 1997 Free Software Foundation
+# Copyright (C) 1995, 1996, 1997, 1999 Free Software Foundation
# Written by Michael I. Bushnell.
#
# This file is part of the GNU Hurd.
@@ -36,7 +36,7 @@ IOSRCS= io-read.c io-readable.c io-seek.c io-write.c io-stat.c io-async.c \
io-set-all-openmodes.c io-get-openmodes.c io-set-some-openmodes.c \
io-clear-some-openmodes.c io-mod-owner.c io-get-owner.c io-select.c \
io-get-icky-async-id.c io-reauthenticate.c io-restrict-auth.c \
- io-duplicate.c iostubs.c io-identity.c
+ io-duplicate.c iostubs.c io-identity.c io-revoke.c
FSYSSRCS= fsys-syncfs.c fsys-getroot.c fsys-get-options.c fsys-set-options.c \
fsysstubs.c
diff --git a/libnetfs/io-revoke.c b/libnetfs/io-revoke.c
new file mode 100644
index 00000000..05f79f12
--- /dev/null
+++ b/libnetfs/io-revoke.c
@@ -0,0 +1,61 @@
+/*
+ Copyright (C) 1999 Free Software Foundation
+ Written by Thomas Bushnell, BSG.
+
+ 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 "netfs.h"
+#include "io_S.h"
+
+/* Implement io_revoke as described in <hurd/io.defs>. */
+kern_return_t
+netfs_S_io_revoke (struct protid *cred)
+{
+ error_t err;
+ struct node *np;
+
+ error_t
+ iterator_function (void *port)
+ {
+ struct protid *user = port;
+
+ if ((user != cred) && (user->po->np == np))
+ ports_destroy_right (user);
+ }
+
+ if (!cred)
+ return EOPNOTSUPP;
+
+ np = cred->po->np;
+
+ mutex_lock (&np->lock);
+
+ err = netfs_validate_stat (np, cred);
+ if (!err)
+ err = fshelp_isowner (&np->dn_stat, cred->user);
+ if (err)
+ {
+ mutex_unlock (&np->lock);
+ return err;
+ }
+
+ ports_bucket_iterate (diskfs_port_bucket, iterator_function);
+
+ mutex_unlock (&np->lock);
+
+ return 0;
+}
+
+