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40 lines
735 B
C
40 lines
735 B
C
/*
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* Copyright (C) 2013 Kaspar Schleiser <kaspar@schleiser.de>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @defgroup sys_hash_string
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* @ingroup sys
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*
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* @brief Hash string implementation
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*
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* @{
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* @file
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* @author Kaspar Schleiser <kaspar@schleiser.de>
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* @}
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*/
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#include <string.h>
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#include "hash_string.h"
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unsigned long hash_string(unsigned char *str)
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{
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unsigned long hash = 5381;
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int c;
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while ((c = *str++)) {
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hash = ((hash << 5) + hash) + c; /* hash * 33 + c */
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}
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return hash;
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}
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int cmp_string(char *a, char *b)
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{
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return (strcmp(a, b) == 0);
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}
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