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3331832b04
* Add Random\Random{Error,Exception} and Random\BrokenRandomEngineError
* Throw BrokenRandomEngineError
* Throw RandomException on seeding failure
* Throw RandomException when CSPRNG fails
* Remove unused include from ext/random/engine_combinedlcg.c
* Remove unused include from ext/random/engine_secure.c
* Remove unused include from ext/random/random.c
* [ci skip] Add ext/random Exception hierarchy to NEWS
* [ci skip] Add the change of Exception for random_(int|bytes) to UPGRADING
75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
/*
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+----------------------------------------------------------------------+
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| Copyright (c) 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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| https://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: Go Kudo <zeriyoshi@php.net> |
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+----------------------------------------------------------------------+
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "php.h"
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#include "php_random.h"
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static uint64_t generate(php_random_status *status)
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{
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php_random_status_state_user *s = status->state;
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uint64_t result = 0;
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size_t size;
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zval retval;
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zend_call_known_instance_method_with_0_params(s->generate_method, s->object, &retval);
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if (EG(exception)) {
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return 0;
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}
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/* Store generated size in a state */
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size = Z_STRLEN(retval);
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/* Guard for over 64-bit results */
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if (size > sizeof(uint64_t)) {
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size = sizeof(uint64_t);
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}
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status->last_generated_size = size;
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if (size > 0) {
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/* Endianness safe copy */
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for (size_t i = 0; i < size; i++) {
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result += ((uint64_t) (unsigned char) Z_STRVAL(retval)[i]) << (8 * i);
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}
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} else {
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zend_throw_error(random_ce_Random_BrokenRandomEngineError, "A random engine must return a non-empty string");
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return 0;
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}
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zval_ptr_dtor(&retval);
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return result;
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}
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static zend_long range(php_random_status *status, zend_long min, zend_long max)
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{
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return php_random_range(&php_random_algo_user, status, min, max);
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}
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const php_random_algo php_random_algo_user = {
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0,
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sizeof(php_random_status_state_user),
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NULL,
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generate,
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range,
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NULL,
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NULL,
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};
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