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[glibc/history.git] / nss / nss.h
blob611b2580ad1cd6d63bd64a998c93d277a5cd0b2b
1 /* Copyright (C) 1996, 1997, 1999, 2008 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
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 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
17 02111-1307 USA. */
19 /* Define interface to NSS. This is meant for the interface functions
20 and for implementors of new services. */
22 #ifndef _NSS_H
23 #define _NSS_H 1
25 #include <features.h>
26 #include <stdint.h>
29 __BEGIN_DECLS
31 /* Possible results of lookup using a nss_* function. */
32 enum nss_status
34 NSS_STATUS_TRYAGAIN = -2,
35 NSS_STATUS_UNAVAIL,
36 NSS_STATUS_NOTFOUND,
37 NSS_STATUS_SUCCESS,
38 NSS_STATUS_RETURN
42 /* Data structure used for the 'gethostbyname4_r' function. */
43 struct gaih_addrtuple
45 struct gaih_addrtuple *next;
46 char *name;
47 int family;
48 uint32_t addr[4];
49 uint32_t scopeid;
53 /* Overwrite service selection for database DBNAME using specification
54 in STRING.
55 This function should only be used by system programs which have to
56 work around non-existing services (e.e., while booting).
57 Attention: Using this function repeatedly will slowly eat up the
58 whole memory since previous selection data cannot be freed. */
59 extern int __nss_configure_lookup (__const char *__dbname,
60 __const char *__string) __THROW;
62 __END_DECLS
64 #endif /* nss.h */