#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;
-
+ php_uint32 crcinit = 0;
+ register php_uint32 crc;
+
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &p, &nr) == FAILURE) {
return;
}
+ crc = crcinit^0xFFFFFFFF;
- len = 0 ;
- for (len += nr; nr--; ++p) {
- CRC32(crc, *p);
+ for (len =+nr; nr--; ++p) {
+ crc = ((crc >> 8) & 0x00FFFFFF) ^ crc32tab[(crc ^ (*p)) & 0xFF ];
}
- RETVAL_LONG(~ (long) crc);
+ RETVAL_LONG(crc^0xFFFFFFFF);
}
-/* }}} */
/*
* Local variables:
Bug #36306 crc32() 64bit
--FILE--
<?php
-echo crc32("platform independant") . "\n";
+
+/* as an example how to write crc32 tests
+ PHP does not have uint values, you cannot
+ display crc32 like a signed integer.
+ Have to find some small strings to truely reproduce
+ the problem, this example being not a problem
+*/
+echo dechex(crc32("platform independant")) . "\n";
?>
--EXPECT--
--858128794
+ccd9fe66