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/*
Copyright (C) 1993, 1994 Free Software Foundation
This file is part of the GNU Hurd.
The GNU Hurd 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.
The GNU Hurd 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 the GNU Hurd; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Written by Michael I. Bushnell. */
#include "priv.h"
error_t
trivfs_S_io_restrict_auth (struct protid *cred,
mach_port_t *newport,
mach_msg_type_name_t *newporttype,
uid_t *uids, u_int nuids,
uid_t *gids, u_int ngids)
{
struct protid *newcred;
int i;
if (!cred)
return EOPNOTSUPP;
newcred = ports_allocate_port (sizeof (struct protid),
trivfs_protid_porttype);
newcred->isroot = 0;
newcred->cntl = cred->cntl;
ports_port_ref (newcred->cntl);
if (cred->isroot)
{
for (i = 0; i < nuids; i++)
if (uids[i] == 0)
newcred->isroot = 1;
}
io_restrict_auth (cred->realnode, &newcred->realnode,
uids, nuids, gids, ngids);
*newport = ports_get_right (newcred);
*newporttype = MACH_MSG_TYPE_MAKE_SEND;
return 0;
}
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