Ulrich Drepper | 28ed895 | 2006-07-07 03:43:47 +0000 | [diff] [blame] | 1 | /* GNU-style Hash function used in ELF implementations. |
| 2 | Copyright (C) 2006 Red Hat, Inc. |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 3 | This file is part of elfutils. |
Ulrich Drepper | 28ed895 | 2006-07-07 03:43:47 +0000 | [diff] [blame] | 4 | Contributed by Ulrich Drepper <drepper@redhat.com>, 2006. |
| 5 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 6 | This file is free software; you can redistribute it and/or modify |
| 7 | it under the terms of either |
Ulrich Drepper | 28ed895 | 2006-07-07 03:43:47 +0000 | [diff] [blame] | 8 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 9 | * the GNU Lesser General Public License as published by the Free |
| 10 | Software Foundation; either version 3 of the License, or (at |
| 11 | your option) any later version |
| 12 | |
| 13 | or |
| 14 | |
| 15 | * the GNU General Public License as published by the Free |
| 16 | Software Foundation; either version 2 of the License, or (at |
| 17 | your option) any later version |
| 18 | |
| 19 | or both in parallel, as here. |
| 20 | |
| 21 | elfutils is distributed in the hope that it will be useful, but |
Ulrich Drepper | 28ed895 | 2006-07-07 03:43:47 +0000 | [diff] [blame] | 22 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 23 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 24 | General Public License for more details. |
| 25 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 26 | You should have received copies of the GNU General Public License and |
| 27 | the GNU Lesser General Public License along with this program. If |
| 28 | not, see <http://www.gnu.org/licenses/>. */ |
Ulrich Drepper | 28ed895 | 2006-07-07 03:43:47 +0000 | [diff] [blame] | 29 | |
| 30 | #ifdef HAVE_CONFIG_H |
| 31 | # include <config.h> |
| 32 | #endif |
| 33 | |
| 34 | #include <libelfP.h> |
| 35 | |
| 36 | /* Get the implementation. */ |
| 37 | #include <dl-hash.h> |
| 38 | |
| 39 | unsigned long int |
| 40 | elf_gnu_hash (string) |
| 41 | const char *string; |
| 42 | { |
| 43 | uint_fast32_t h = 5381; |
| 44 | for (unsigned char c = *string; c != '\0'; c = *++string) |
| 45 | h = h * 33 + c; |
| 46 | return h & 0xffffffff; |
| 47 | } |