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6428aed93c
* hurd/ports-get.c (_hurd_ports_get): If the requested port is null, don't attempt mach_port_mod_refs.
47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
/* Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <hurd.h>
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static error_t
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getbootstrap (mach_port_t *result)
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{
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return __task_get_special_port (__mach_task_self (),
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TASK_BOOTSTRAP_PORT,
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result);
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}
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error_t (*_hurd_ports_getters[INIT_PORT_MAX]) (mach_port_t *result) =
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{
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[INIT_PORT_BOOTSTRAP] = getbootstrap,
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};
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error_t
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_hurd_ports_get (unsigned int which, mach_port_t *result)
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{
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if (which >= _hurd_nports)
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return EINVAL;
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if (which >= INIT_PORT_MAX || _hurd_ports_getters[which] == NULL)
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return HURD_PORT_USE (&_hurd_ports[which],
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(*result = port) == MACH_PORT_NULL ? 0
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: __mach_port_mod_refs (__mach_task_self (),
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port, MACH_PORT_RIGHT_SEND,
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+1));
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return (*_hurd_ports_getters[which]) (result);
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}
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