nss/nss.h

   1 /* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 /* Define interface to NSS.  This is meant for the interface functions
  20    and for implementors of new services.  */
  21
  22 #ifndef _NSS_H
  23
  24 #define _NSS_H  1
  25 #include <features.h>
  26
  27 /* Revision number of NSS interface (must be a string).  */
  28 #define NSS_SHLIB_REVISION __nss_shlib_revision
  29 extern const char *const __nss_shlib_revision;
  30
  31
  32 __BEGIN_DECLS
  33
  34 /* Possible results of lookup using a nss_* function.  */
  35 enum nss_status
  36 {
  37   NSS_STATUS_TRYAGAIN = -2,
  38   NSS_STATUS_UNAVAIL,
  39   NSS_STATUS_NOTFOUND,
  40   NSS_STATUS_SUCCESS,
  41   NSS_STATUS_RETURN
  42 };
  43
  44
  45 /* Overwrite service selection for database DBNAME using specification
  46    in STRING.
  47    This function should only be used by system programs which have to
  48    work around non-existing services (e.e., while booting).
  49    Attention: Using this function repeatedly will slowly eat up the
  50    whole memory since previous selection data cannot be freed.  */
  51 extern int __nss_configure_lookup __P ((__const char *__dbname,
  52                                         __const char *__string));
  53
  54 __END_DECLS
  55
  56 #endif /* nss.h */