diff options
Diffstat (limited to 'libnetfs')
| -rw-r--r-- | libnetfs/ChangeLog | 5 | ||||
| -rw-r--r-- | libnetfs/Makefile | 4 | ||||
| -rw-r--r-- | libnetfs/io-revoke.c | 61 |
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; +} + + |