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-rw-r--r--libdiskfs/ChangeLog5
-rw-r--r--libdiskfs/Makefile4
-rw-r--r--libdiskfs/io-revoke.c59
3 files changed, 66 insertions, 2 deletions
diff --git a/libdiskfs/ChangeLog b/libdiskfs/ChangeLog
index a4922ab2..633d82f7 100644
--- a/libdiskfs/ChangeLog
+++ b/libdiskfs/ChangeLog
@@ -1,3 +1,8 @@
+Tue Feb 16 05:31:23 1999 Thomas Bushnell, BSG <tb@mit.edu>
+
+ * io-revoke.c: New file.
+ * Makefile (IOSRCS): Add io-revoke.c.
+
Sat Feb 13 04:29:29 1999 Thomas Bushnell, BSG <tb@mit.edu>
* peropen-make.c (diskfs_make_peropen): If there is no existing
diff --git a/libdiskfs/Makefile b/libdiskfs/Makefile
index 7a909d51..6e92e174 100644
--- a/libdiskfs/Makefile
+++ b/libdiskfs/Makefile
@@ -1,5 +1,5 @@
#
-# Copyright (C) 1994, 95, 96, 97, 98 Free Software Foundation, Inc.
+# Copyright (C) 1994, 95, 96, 97, 98, 1999 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
@@ -27,7 +27,7 @@ FSSRCS= dir-chg.c dir-link.c dir-lookup.c dir-mkdir.c dir-mkfile.c \
file-getfh.c file-getlinknode.c file-inv-trans.c file-lock-stat.c \
file-lock.c file-set-size.c file-set-trans.c file-statfs.c \
file-sync.c file-syncfs.c file-utimes.c file-reparent.c
-IOSRCS= io-async-icky.c io-async.c io-duplicate.c io-get-conch.c \
+IOSRCS= io-async-icky.c io-async.c io-duplicate.c io-get-conch.c io-revoke.c \
io-interrupt.c io-map-cntl.c io-map.c io-modes-get.c io-modes-off.c \
io-modes-on.c io-modes-set.c io-owner-mod.c io-owner-get.c \
io-pathconf.c io-prenotify.c io-read.c io-readable.c io-identity.c \
diff --git a/libdiskfs/io-revoke.c b/libdiskfs/io-revoke.c
new file mode 100644
index 00000000..ddda95fa
--- /dev/null
+++ b/libdiskfs/io-revoke.c
@@ -0,0 +1,59 @@
+/*
+ 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 "priv.h"
+#include "io_S.h"
+
+/* Implement io_revoke as described in <hurd/io.defs>. */
+kern_return_t
+diskfs_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 = 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;
+}
+
+