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5f2f0f69 | 1 | /* __simple_nss_hash for testing nss_hash function |
6d7e8eda | 2 | Copyright (C) 2022-2023 Free Software Foundation, Inc. |
5f2f0f69 NG |
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 */ |