1 | /* __simple_nss_hash for testing nss_hash function |
2 | Copyright (C) 2022-2024 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 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #ifndef _SIMPLE_NSS_HASH_H |
20 | #define _SIMPLE_NSS_HASH_H 1 |
21 | |
22 | #include <stdint.h> |
23 | |
24 | /* For testing/benchmarking purposes. Real implementation in |
25 | nss/nss_hash.c. */ |
26 | static uint32_t |
27 | __attribute__ ((unused)) |
28 | __simple_nss_hash (const void *keyarg, size_t len) |
29 | { |
30 | const unsigned char *key; |
31 | size_t i; |
32 | uint32_t h = 0; |
33 | key = keyarg; |
34 | |
35 | for (i = 0; i < len; ++i) |
36 | h = *key++ + 65599 * h; |
37 | |
38 | return h; |
39 | } |
40 | |
41 | |
42 | #endif /* simple-nss-hash.h */ |
43 | |