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glibc  2.9
hurdports.c
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00001 /* Copyright (C) 1991, 1992, 1993, 1994, 1997 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003 
00004    The GNU C Library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Lesser General Public
00006    License as published by the Free Software Foundation; either
00007    version 2.1 of the License, or (at your option) any later version.
00008 
00009    The GNU C Library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Lesser General Public License for more details.
00013 
00014    You should have received a copy of the GNU Lesser General Public
00015    License along with the GNU C Library; if not, write to the Free
00016    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00017    02111-1307 USA.  */
00018 
00019 #include <hurd.h>
00020 #include <hurd/port.h>
00021 
00022 
00023 static inline mach_port_t
00024 get (const int idx)
00025 {
00026   mach_port_t result;
00027   error_t err = _hurd_ports_get (idx, &result);
00028 
00029   if (err)
00030     return __hurd_fail (err), MACH_PORT_NULL;
00031   return result;
00032 }
00033 #define       GET(type, what, idx) \
00034   type get##what (void) { return get (INIT_PORT_##idx); }
00035 
00036 static inline int
00037 set (const int idx, mach_port_t new)
00038 {
00039   error_t err = _hurd_ports_set (idx, new);
00040   return err ? __hurd_fail (err) : 0;
00041 }
00042 #define SET(type, what, idx) \
00043   int set##what (type new) { return set (INIT_PORT_##idx, new); }
00044 
00045 #define       GETSET(type, what, idx) \
00046   GET (type, what, idx) SET (type, what, idx)
00047 
00048 GETSET (process_t, proc, PROC)
00049 GETSET (mach_port_t, cttyid, CTTYID)
00050 GETSET (file_t, cwdir, CWDIR)
00051 GETSET (file_t, crdir, CRDIR)
00052 GETSET (auth_t, auth, AUTH)