hurd/hurd/id.h

   1 /* User and group IDs.
   2    Copyright (C) 1993, 1994, 1997 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #ifndef _HURD_ID_H
  21
  22 #define _HURD_ID_H      1
  23 #include <features.h>
  24
  25 #include <cthreads.h>           /* For `struct mutex'.  */
  26
  27 /* Structure describing authorization data for the process.  */
  28
  29 struct hurd_id_data
  30   {
  31     struct mutex lock;
  32
  33     int valid;                  /* If following data are up to date.  */
  34
  35     struct
  36       {
  37         uid_t *uids;
  38         gid_t *gids;
  39         mach_msg_type_number_t nuids, ngids;
  40       } gen, aux;
  41
  42     auth_t rid_auth;            /* Cache used by access.  */
  43   };
  44
  45 /* Current data.  */
  46
  47 extern struct hurd_id_data _hurd_id;
  48
  49
  50 /* Update _hurd_id (caller should be holding the lock).  */
  51
  52 extern error_t _hurd_check_ids (void);
  53
  54
  55 #endif  /* hurd/id.h */