diff options
| -rw-r--r-- | libdiskfs/ChangeLog | 5 | ||||
| -rw-r--r-- | libdiskfs/Makefile | 4 | ||||
| -rw-r--r-- | libdiskfs/io-revoke.c | 59 |
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; +} + + |