diff options
Diffstat (limited to 'libdiskfs/io-duplicate.c')
-rw-r--r-- | libdiskfs/io-duplicate.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/libdiskfs/io-duplicate.c b/libdiskfs/io-duplicate.c new file mode 100644 index 00000000..88f0b381 --- /dev/null +++ b/libdiskfs/io-duplicate.c @@ -0,0 +1,35 @@ +/* + Copyright (C) 1994 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" + +/* Implement io_duplicate as described in <hurd/io.defs>. */ +error_t +diskfs_S_io_duplicate (struct protid *cred, + mach_port_t *port, + mach_msg_type_name_t *portpoly) +{ + if (!cred) + return EOPNOTSUPP; + + mutex_lock (&cred->po->np->lock); + *port = (make_protid (cred->po, cred->uids, cred->nuids, cred->gids, + cred->ngids))->fspt.pi.port; + *portpoly = MACH_MSG_TYPE_MAKE_SEND; + mutex_unlock (&cred->po->np->lock); + return 0; +} |