glibc/hurd/ports-set.c

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/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <hurd.h>
static error_t
setbootstrap (mach_port_t newport)
{
return __task_set_special_port (__mach_task_self (),
TASK_BOOTSTRAP_PORT,
newport);
}
extern error_t _hurd_setauth (auth_t);
extern error_t _hurd_setproc (process_t);
extern error_t _hurd_setcttyid (mach_port_t);
error_t (*_hurd_ports_setters[INIT_PORT_MAX]) (mach_port_t newport) =
{
[INIT_PORT_BOOTSTRAP] = setbootstrap,
[INIT_PORT_AUTH] = _hurd_setauth,
[INIT_PORT_PROC] = _hurd_setproc,
[INIT_PORT_CTTYID] = _hurd_setcttyid,
};
error_t
_hurd_ports_set (unsigned int which, mach_port_t newport)
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{
error_t err;
if (which >= _hurd_nports)
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return EINVAL;
if (err = __mach_port_mod_refs (__mach_task_self (), newport,
MACH_PORT_RIGHT_SEND, 1))
return err;
if (which >= INIT_PORT_MAX || _hurd_ports_setters[which] == NULL)
{
_hurd_port_set (&_hurd_ports[which], newport);
return 0;
}
return (*_hurd_ports_setters[which]) (newport);
}