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Porting the random number generator code over

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Fingers crossed that this doesn't break anything.... ;-)


git-svn-id: file:///svn/phpbb/trunk@5813 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Graham Eames
2006-04-21 20:42:10 +00:00
parent 10e8b6130d
commit 6f4c1b1a22
5 changed files with 23 additions and 19 deletions
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35
phpBB/includes/functions.php
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@@ -122,29 +122,32 @@ function set_config($config_name, $config_value, $is_dynamic = false)
/**
* Generates an alphanumeric random string of given length
*/
function gen_rand_string($num_chars)
function gen_rand_string($num_chars = 8)
{
$chars = array('A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '1', '2', '3', '4', '5', '6', '7', '8', '9');
$rand_str = dss_rand();
$max_chars = sizeof($chars) - 1;
$rand_str = '';
for ($i = 0; $i < $num_chars; $i++)
{
$rand_str .= $chars[mt_rand(0, $max_chars)];
}
return $rand_str;
return substr($rand_str, 0, $num_chars);
}
/**
* Return unique id
* @param $extra additional entropy for call to mt_srand
* @param $extra additional entropy
*/
function unique_id($extra = 0, $prefix = false)
function unique_id($extra = 'c')
{
list($usec, $sec) = explode(' ', microtime());
mt_srand((float) $extra + (float) $sec + ((float) $usec * 100000));
return uniqid(($prefix === false) ? mt_rand() : $prefix, true);
global $db, $config, $dss_seeded;
$val = $config['rand_seed'] . microtime();
$val = md5($val);
$config['rand_seed'] = md5($config['rand_seed'] . $val . $extra);
if($dss_seeded !== true)
{
set_config('rand_seed', $config['rand_seed']);
$dss_seeded = true;
}
return substr($val, 4, 16);
}
/**
@@ -1448,7 +1451,7 @@ function login_box($redirect = '', $l_explain = '', $l_success = '', $admin = fa
// Generate code
$code = gen_rand_string(mt_rand(5, 8));
$confirm_id = md5(unique_id(0, $user->ip));
$confirm_id = md5(unique_id($user->ip));
$sql = 'INSERT INTO ' . CONFIRM_TABLE . ' ' . $db->sql_build_array('INSERT', array(
'confirm_id' => (string) $confirm_id,