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Merge branch 'master' into php5

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* master:
  Random: wrap crypt_random_string in a function_exists call
This commit is contained in:
Andreas Fischer 2014-05-27 12:24:52 +02:00
commit 958430b5a8
1 changed files with 193 additions and 188 deletions
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15
phpseclib/Crypt/Random.php
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@ -40,14 +40,18 @@
* @link http://phpseclib.sourceforge.net * @link http://phpseclib.sourceforge.net
*/ */
/** // laravel is a PHP framework that utilizes phpseclib. laravel workbenches may, independently,
// have phpseclib as a requirement as well. if you're developing such a program you may encounter
// a "Cannot redeclare crypt_random_string()" error.
if (!function_exists('crypt_random_string')) {
/**
* "Is Windows" test * "Is Windows" test
* *
* @access private * @access private
*/ */
define('CRYPT_RANDOM_IS_WINDOWS', strtoupper(substr(PHP_OS, 0, 3)) === 'WIN'); define('CRYPT_RANDOM_IS_WINDOWS', strtoupper(substr(PHP_OS, 0, 3)) === 'WIN');
/** /**
* Generate a random string. * Generate a random string.
* *
* Although microoptimizations are generally discouraged as they impair readability this function is ripe with * Although microoptimizations are generally discouraged as they impair readability this function is ripe with
@ -58,8 +62,8 @@ define('CRYPT_RANDOM_IS_WINDOWS', strtoupper(substr(PHP_OS, 0, 3)) === 'WIN');
* @return String * @return String
* @access public * @access public
*/ */
function crypt_random_string($length) function crypt_random_string($length)
{ {
if (CRYPT_RANDOM_IS_WINDOWS) { if (CRYPT_RANDOM_IS_WINDOWS) {
// method 1. prior to PHP 5.3 this would call rand() on windows hence the function_exists('class_alias') call. // method 1. prior to PHP 5.3 this would call rand() on windows hence the function_exists('class_alias') call.
// ie. class_alias is a function that was introduced in PHP 5.3 // ie. class_alias is a function that was introduced in PHP 5.3
@ -243,4 +247,5 @@ function crypt_random_string($length)
$result.= $r; $result.= $r;
} }
return substr($result, 0, $length); return substr($result, 0, $length);
}
} }