[Phplib-users] preauth using cidr

[Paul W. <pa...@zz...>]

Hi,

I am trying to do a preauth using cidr to allow some institutional
subscribers to access info that is normally password protected. I found
some Perl code that does this but it does not work in php. Does anyone
know how one could accomplish this?

$cidr = $valid_client; /* eg 192.55.192.0/24 */
list ($quad, $nbits) = split ("/", $cidr, 2);
$byte = explode (".", $quad);
	
$address = ($byte[0] << 24) | ($byte[1] << 16) | ($byte[2] << 8) |
$byte[3];
$bitmask = 0xffffffff << (32 - $nbits);
				
if ($ip & $bitmask == $address & $bitmask) {
	$this->auth['uname'] = $this->dbAuth->f('ID');
	$this->auth['perm'][$this->dbAuth->f('Service')] = 1;
}


-- 
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Paul Wolstenholme
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