diff options
Diffstat (limited to 'libnetfs/file-get-transcntl.c')
-rw-r--r-- | libnetfs/file-get-transcntl.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/libnetfs/file-get-transcntl.c b/libnetfs/file-get-transcntl.c new file mode 100644 index 00000000..04596d72 --- /dev/null +++ b/libnetfs/file-get-transcntl.c @@ -0,0 +1,52 @@ +/* libnetfs implementation of fs.defs: file_get_translator_cntl + + Copyright (C) 1992, 1993, 1994, 1995, 1996 Free Software Foundation + + This is a trivially adapted version of + libdiskfs/file-get-transcntl.c. + + 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 "fs_S.h" + +/* Implement file_get_translator_cntl as described in <hurd/fs.defs>. */ +error_t +netfs_S_file_get_translator_cntl (struct protid *cred, + mach_port_t *ctl, + mach_msg_type_name_t *ctltype) +{ + struct node *np; + error_t err; + + if (!cred) + return EOPNOTSUPP; + + np = cred->po->np; + + pthread_mutex_lock (&np->lock); + + err = fshelp_isowner (&np->nn_stat, cred->user); + if (!err) + err = fshelp_fetch_control (&np->transbox, ctl); + if (!err && *ctl == MACH_PORT_NULL) + err = ENXIO; + if (!err) + *ctltype = MACH_MSG_TYPE_MOVE_SEND; + + pthread_mutex_unlock (&np->lock); + + return err; +} |