From 0612756dd37a3472259a19814e1a9bb403ab6e11 Mon Sep 17 00:00:00 2001
From: vlakoff <vlakoff@gmail.com>
Date: Sat, 30 Mar 2013 00:06:39 +0100
Subject: Some cleanup related to mt_rand()

- min and max values are 0 and mt_getrandmax() by default
- remove useless mt_srand() seed calls
---
 system/libraries/Encrypt.php                        | 2 +-
 system/libraries/Session/drivers/Session_cookie.php | 3 +--
 system/libraries/Upload.php                         | 1 -
 3 files changed, 2 insertions(+), 4 deletions(-)

(limited to 'system/libraries')

diff --git a/system/libraries/Encrypt.php b/system/libraries/Encrypt.php
index c6a1cb175..8ac5420de 100644
--- a/system/libraries/Encrypt.php
+++ b/system/libraries/Encrypt.php
@@ -244,7 +244,7 @@ class CI_Encrypt {
 		$rand = '';
 		do
 		{
-			$rand .= mt_rand(0, mt_getrandmax());
+			$rand .= mt_rand();
 		}
 		while (strlen($rand) < 32);
 
diff --git a/system/libraries/Session/drivers/Session_cookie.php b/system/libraries/Session/drivers/Session_cookie.php
index 0e8644102..7174d63c8 100644
--- a/system/libraries/Session/drivers/Session_cookie.php
+++ b/system/libraries/Session/drivers/Session_cookie.php
@@ -641,7 +641,7 @@ class CI_Session_cookie extends CI_Session_driver {
 		$new_sessid = '';
 		do
 		{
-			$new_sessid .= mt_rand(0, mt_getrandmax());
+			$new_sessid .= mt_rand();
 		}
 		while (strlen($new_sessid) < 32);
 
@@ -832,7 +832,6 @@ class CI_Session_cookie extends CI_Session_driver {
 		$probability = ini_get('session.gc_probability');
 		$divisor = ini_get('session.gc_divisor');
 
-		srand(time());
 		if ((mt_rand(0, $divisor) / $divisor) < $probability)
 		{
 			$expire = $this->now - $this->sess_expiration;
diff --git a/system/libraries/Upload.php b/system/libraries/Upload.php
index 1c14f99ed..1fe49d8a6 100644
--- a/system/libraries/Upload.php
+++ b/system/libraries/Upload.php
@@ -604,7 +604,6 @@ class CI_Upload {
 	{
 		if ($this->encrypt_name === TRUE)
 		{
-			mt_srand();
 			$filename = md5(uniqid(mt_rand())).$this->file_ext;
 		}
 
-- 
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