1  /* __simple_nss_hash for testing nss_hash function
       2     Copyright (C) 2022-2023 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 */