mirror of
https://github.com/php/php-src.git
synced 2024-09-22 10:27:25 +00:00
53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
/*
|
|
+----------------------------------------------------------------------+
|
|
| PHP Version 4 |
|
|
+----------------------------------------------------------------------+
|
|
| Copyright (c) 1997-2003 The PHP Group |
|
|
+----------------------------------------------------------------------+
|
|
| This source file is subject to version 3.0 of the PHP license, |
|
|
| that is bundled with this package in the file LICENSE, and is |
|
|
| available through the world-wide-web at the following url: |
|
|
| http://www.php.net/license/3_0.txt. |
|
|
| If you did not receive a copy of the PHP license and are unable to |
|
|
| obtain it through the world-wide-web, please send a note to |
|
|
| license@php.net so we can mail you a copy immediately. |
|
|
+----------------------------------------------------------------------+
|
|
| Author: Rasmus Lerdorf <rasmus@php.net> |
|
|
+----------------------------------------------------------------------+
|
|
*/
|
|
|
|
/* $Id$ */
|
|
|
|
#include "php.h"
|
|
#include "basic_functions.h"
|
|
#include "crc32.h"
|
|
|
|
/* {{{ proto string crc32(string str)
|
|
Calculate the crc32 polynomial of a string */
|
|
PHP_NAMED_FUNCTION(php_if_crc32)
|
|
{
|
|
unsigned int crc = ~0;
|
|
char *p;
|
|
int len, nr;
|
|
|
|
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &p, &nr) == FAILURE) {
|
|
return;
|
|
}
|
|
|
|
len = 0 ;
|
|
for (len += nr; nr--; ++p) {
|
|
CRC32(crc, *p);
|
|
}
|
|
RETVAL_LONG(~crc);
|
|
}
|
|
/* }}} */
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* End:
|
|
* vim600: sw=4 ts=4 fdm=marker
|
|
* vim<600: sw=4 ts=4
|
|
*/
|