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fixed check_ip

This commit is contained in:
Roland Gruber 2007-05-26 11:39:17 +00:00
parent b7c4023972
commit a80990c0c5
1 changed files with 17 additions and 77 deletions
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94
lam/lib/account.inc
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@ -96,67 +96,6 @@ function in_array_ignore_case( $needle, $haystack )
return false; return false;
} }
/**
* This function will return a password with max. 8 characters.
*
* @return string password
*/
function genpasswd() {
// Allowed Characters to generate passwords
// I'Ve removed characters like l and 1 because they are too similar
$LCase = 'abcdefghjkmnpqrstuvwxyz';
$UCase = 'ABCDEFGHJKMNPQRSTUVWXYZ';
$Integer = '23456789';
// DEFINE CONSTANTS FOR ALGORTTHM
define("LEN", '1');
$a = RndInt('letter');
$b = RndInt('letter');
$c = RndInt('letter');
$d = RndInt('letter');
$e = RndInt('number');
$f = RndInt('number');
$g = RndInt('letter');
$h = RndInt('letter');
// EXTRACT 8 CHARACTERS RANDOMLY FROM TH // E DEFINITION STRINGS
$L1 = substr($LCase, $a, LEN);
$L2 = substr($LCase, $b, LEN);
$L3 = substr($LCase, $h, LEN);
$U1 = substr($UCase, $c, LEN);
$U2 = substr($UCase, $d, LEN);
$U3 = substr($UCase, $g, LEN);
$I1 = substr($Integer, $e, LEN);
$I2 = substr($Integer, $f, LEN);
// COMBINE THE CHARACTERS AND DISPLAY TH // E NEW PASSWORD
$PW = $L1 . $U2 . $I1 . $L2 . $I2 . $U1 . $U3 . $L3;
return $PW;
}
/**
* THIS FUNCTION GENERATES A RANDOM NUMBER THAT WILL BE USED TO
* RANDOMLY SELECT CHARACTERS.
*
* @param string $Format "letter" or "number"
* @return integer random number
*/
function RndInt($Format){
switch ($Format){
case 'letter':
$Rnd = rand(0,23);
if ($Rnd > 23){
$Rnd = $Rnd - 1;
}
break;
case 'number':
$Rnd = rand(2,9);
if ($Rnd > 8){
$Rnd = $Rnd - 1;
}
break;
}
return $Rnd;
}
/** /**
* This function will return the days from 1.1.1970 until now. * This function will return the days from 1.1.1970 until now.
* *
@ -592,30 +531,31 @@ function get_preg($argument, $regexp) {
} }
/** /**
* This function checks if the given IP address ist valid. * This function checks if the given IP ist valid.
*
* @param IP
* @param check_subnet true for subnets, else false
* *
* @param string IP to check
* @return boolean true or false * @return boolean true or false
**/ **/
function check_ip($ip) { function check_ip($ip, $subnet=false) {
$part = split("[.]", $ip); $part = split("[.]", $ip);
// Wenn... Keine 4 Segmente gefunden wurde // IP must have 4 segments
if (count($part) != 4) { if (count($part) != 4) {
return false; return false;
} }
else { // non-subnets must not end with 0
// check each segment if (!$subnet && ($part[3] < 1)) return false;
for ($i = 0; $i < count($part); $i++) { // subnets must end with 0
// only numbers are allowed if ($subnet && ($part[3] != 0)) return false;
if (!is_numeric($part[$i])) { for ($i = 0; $i < 3; $i++) {
if (!is_numeric($part[$i])) {
return false;
}
else {
if (($part[$i] > 255) || ($part[$i] < 0)) {
return false; return false;
} }
else {
// segment must be smaller than 256
if($part[$i] > 255) {
return false;
}
}
} }
} }
return true; return true;