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glibc  2.9
id.h
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00001 /* User and group IDs.
00002    Copyright (C) 1993, 1994, 1997 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #ifndef       _HURD_ID_H
00021 
00022 #define       _HURD_ID_H    1
00023 #include <features.h>
00024 
00025 #include <cthreads.h>              /* For `struct mutex'.  */
00026 
00027 /* Structure describing authorization data for the process.  */
00028 
00029 struct hurd_id_data
00030   {
00031     struct mutex lock;
00032 
00033     int valid;                     /* If following data are up to date.  */
00034 
00035     struct
00036       {
00037        uid_t *uids;
00038        gid_t *gids;
00039        mach_msg_type_number_t nuids, ngids;
00040       } gen, aux;
00041 
00042     auth_t rid_auth;        /* Cache used by access.  */
00043   };
00044 
00045 /* Current data.  */
00046 
00047 extern struct hurd_id_data _hurd_id;
00048 
00049 
00050 /* Update _hurd_id (caller should be holding the lock).  */
00051 
00052 extern error_t _hurd_check_ids (void);
00053 
00054 
00055 #endif /* hurd/id.h */