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. */
26static 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

source code of glibc/nss/simple-nss-hash.h