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9a6450d5 | 1 | /* Common database open/close routines for nss_db. |
d614a753 | 2 | Copyright (C) 1999-2020 Free Software Foundation, Inc. |
9a6450d5 UD |
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 | |
41bdb6e2 AJ |
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. | |
9a6450d5 UD |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
9a6450d5 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
9a6450d5 UD |
18 | |
19 | #ifndef _NSS_DB_H | |
20 | #define _NSS_DB_H 1 | |
21 | ||
d1c2a14c | 22 | #include <nss.h> |
9a6450d5 | 23 | #include <stdint.h> |
ec999b8e | 24 | #include <libc-lock.h> |
9a6450d5 | 25 | |
9d8525f2 | 26 | |
2666d441 UD |
27 | /* String table index type. */ |
28 | typedef uint32_t stridx_t; | |
d1c2a14c | 29 | |
2666d441 UD |
30 | /* Database file header. */ |
31 | struct nss_db_header | |
d1c2a14c | 32 | { |
2666d441 UD |
33 | uint32_t magic; |
34 | #define NSS_DB_MAGIC 0xdd110601 | |
35 | uint32_t ndbs; | |
36 | uint64_t valstroffset; | |
37 | uint64_t valstrlen; | |
38 | uint64_t allocate; | |
39 | struct | |
40 | { | |
41 | char id; | |
42 | char pad[sizeof (uint32_t) - 1]; | |
43 | uint32_t hashsize; | |
44 | uint64_t hashoffset; | |
45 | uint64_t keyidxoffset; | |
46 | uint64_t keystroffset; | |
47 | } dbs[0]; | |
48 | }; | |
49 | ||
50 | ||
51 | /* Information about mapped database. */ | |
52 | struct nss_db_map | |
793bd4d9 | 53 | { |
2666d441 UD |
54 | struct nss_db_header *header; |
55 | size_t len; | |
56 | }; | |
793bd4d9 | 57 | |
9a6450d5 | 58 | |
d1c2a14c | 59 | /* Open the database stored in FILE. If succesful, store the database |
2666d441 UD |
60 | handle in *MAPPINGP or a file descriptor for the file in *FDP and |
61 | return NSS_STATUS_SUCCESS. On failure, return the appropriate | |
d1c2a14c | 62 | lookup status. */ |
2666d441 UD |
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); | |
9d8525f2 | 68 | |
9a6450d5 | 69 | #endif /* nss_db.h */ |