1 | /* Common database open/close routines for nss_db. |
2 | Copyright (C) 1999-2017 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, see |
17 | <http://www.gnu.org/licenses/>. */ |
18 | |
19 | #ifndef _NSS_DB_H |
20 | #define _NSS_DB_H 1 |
21 | |
22 | #include <nss.h> |
23 | #include <stdint.h> |
24 | #include <libc-lock.h> |
25 | |
26 | |
27 | /* String table index type. */ |
28 | typedef uint32_t stridx_t; |
29 | |
30 | /* Database file header. */ |
31 | struct |
32 | { |
33 | uint32_t ; |
34 | #define NSS_DB_MAGIC 0xdd110601 |
35 | uint32_t ; |
36 | uint64_t ; |
37 | uint64_t ; |
38 | uint64_t ; |
39 | struct |
40 | { |
41 | char ; |
42 | char [sizeof (uint32_t) - 1]; |
43 | uint32_t ; |
44 | uint64_t ; |
45 | uint64_t ; |
46 | uint64_t ; |
47 | } [0]; |
48 | }; |
49 | |
50 | |
51 | /* Information about mapped database. */ |
52 | struct nss_db_map |
53 | { |
54 | struct nss_db_header *; |
55 | size_t len; |
56 | }; |
57 | |
58 | |
59 | /* Open the database stored in FILE. If succesful, store the database |
60 | handle in *MAPPINGP or a file descriptor for the file in *FDP and |
61 | return NSS_STATUS_SUCCESS. On failure, return the appropriate |
62 | lookup status. */ |
63 | enum nss_status internal_setent (const char *file, |
64 | struct nss_db_map *mappingp); |
65 | |
66 | /* Close the database FD. */ |
67 | extern void internal_endent (struct nss_db_map *mapping); |
68 | |
69 | #endif /* nss_db.h */ |
70 | |