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ports-get.c

/* Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
   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 Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <hurd.h>

static error_t
getbootstrap (mach_port_t *result)
{
  return __task_get_special_port (__mach_task_self (),
                          TASK_BOOTSTRAP_PORT,
                          result);
}

error_t (*_hurd_ports_getters[INIT_PORT_MAX]) (mach_port_t *result) =
  {
    [INIT_PORT_BOOTSTRAP] = getbootstrap,
  };

error_t
_hurd_ports_get (unsigned int which, mach_port_t *result)
{
  if (which >= _hurd_nports)
    return EINVAL;
  if (which >= INIT_PORT_MAX || _hurd_ports_getters[which] == NULL)
    return HURD_PORT_USE (&_hurd_ports[which],
                    (*result = port) == MACH_PORT_NULL ? 0 
                    : __mach_port_mod_refs (__mach_task_self (),
                                      port, MACH_PORT_RIGHT_SEND,
                                      +1));
  return (*_hurd_ports_getters[which]) (result);
}

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