apps/dvr_old/php/check.php

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<?php

    function checkMac ($mac)
    {
        $mac  = trim ($mac);
        $mac  = str_replace (" ", "", $mac);
        $mac  = str_replace (":", "", $mac);
        $mac  = trim ($mac);
        $mac  = str_pad ($mac, 12, "0", STR_PAD_LEFT);
        for ($i=0; $i<12; $i++)
        {
            if (! is_numeric ("0x0".$mac[$i]) ) return -1;
        }
        return $mac;
    }

    function getDottedMAC ($mac)
    {
        $mac_ = $mac[0].$mac[1];
        for ($i=2; $i<12; $i+=2)
        {
            $mac_ .= ":" . $mac[$i].$mac[$i+1];
        }
        return $mac_;
    }
    
?>

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