diff options
Diffstat (limited to 'libdiskfs/file-get-transcntl.c')
-rw-r--r-- | libdiskfs/file-get-transcntl.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/libdiskfs/file-get-transcntl.c b/libdiskfs/file-get-transcntl.c new file mode 100644 index 00000000..528529fb --- /dev/null +++ b/libdiskfs/file-get-transcntl.c @@ -0,0 +1,48 @@ +/* libkdiskfs implementation of fs.defs: file_get_translator_cntl + Copyright (C) 1992, 1993, 1994, 1995, 1996 Free Software Foundation + + 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>. */ +kern_return_t +diskfs_S_file_get_translator_cntl (struct protid *cred, + mach_port_t *ctl, + mach_msg_type_name_t *ctltype) +{ + struct node *np; + error_t error; + + if (!cred) + return EOPNOTSUPP; + + np = cred->po->np; + + mutex_lock (&np->lock); + + error = fshelp_isowner (&np->dn_stat, cred->user); + if (!error) + error = fshelp_fetch_control (&np->transbox, ctl); + if (!error && *ctl == MACH_PORT_NULL) + error = ENXIO; + if (!error) + *ctltype = MACH_MSG_TYPE_MOVE_SEND; + + mutex_unlock (&np->lock); + + return error; +} |