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8d3f8ca12a
The $Id$ keywords were used in Subversion where they can be substituted with filename, last revision number change, last changed date, and last user who changed it. In Git this functionality is different and can be done with Git attribute ident. These need to be defined manually for each file in the .gitattributes file and are afterwards replaced with 40-character hexadecimal blob object name which is based only on the particular file contents. This patch simplifies handling of $Id$ keywords by removing them since they are not used anymore.
99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 7 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2018 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Author: Martin Jansen <mj@php.net> |
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+----------------------------------------------------------------------+
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*/
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/* Implements Jenkins's one-at-a-time hashing algorithm as presented on
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* http://www.burtleburtle.net/bob/hash/doobs.html.
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*/
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#include "php_hash.h"
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#include "php_hash_joaat.h"
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const php_hash_ops php_hash_joaat_ops = {
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(php_hash_init_func_t) PHP_JOAATInit,
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(php_hash_update_func_t) PHP_JOAATUpdate,
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(php_hash_final_func_t) PHP_JOAATFinal,
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(php_hash_copy_func_t) php_hash_copy,
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4,
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4,
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sizeof(PHP_JOAAT_CTX),
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0
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};
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PHP_HASH_API void PHP_JOAATInit(PHP_JOAAT_CTX *context)
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{
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context->state = 0;
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}
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PHP_HASH_API void PHP_JOAATUpdate(PHP_JOAAT_CTX *context, const unsigned char *input, unsigned int inputLen)
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{
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context->state = joaat_buf((void *)input, inputLen, context->state);
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}
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PHP_HASH_API void PHP_JOAATFinal(unsigned char digest[4], PHP_JOAAT_CTX * context)
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{
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#ifdef WORDS_BIGENDIAN
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memcpy(digest, &context->state, 4);
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#else
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int i = 0;
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unsigned char *c = (unsigned char *) &context->state;
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for (i = 0; i < 4; i++) {
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digest[i] = c[3 - i];
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}
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#endif
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context->state = 0;
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}
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/*
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* joaat_buf - perform a Jenkins's one-at-a-time hash on a buffer
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*
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* input:
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* buf - start of buffer to hash
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* len - length of buffer in octets
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*
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* returns:
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* 32 bit hash as a static hash type
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*/
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static uint32_t
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joaat_buf(void *buf, size_t len, uint32_t hval)
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{
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size_t i;
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unsigned char *input = (unsigned char *)buf;
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for (i = 0; i < len; i++) {
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hval += input[i];
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hval += (hval << 10);
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hval ^= (hval >> 6);
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}
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hval += (hval << 3);
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hval ^= (hval >> 11);
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hval += (hval << 15);
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return hval;
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}
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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* vim600: noet sw=4 ts=4 fdm=marker
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* vim<600: noet sw=4 ts=4
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*/
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