function add_subnet($add_ip, $sub_name, $id_name, $add_sub)
{
    global $l;
    if (trim($add_ip) == '') {
        return $l->g(932);
    }
    if (trim($sub_name) == '') {
        return $l->g(933);
    }
    if (trim($id_name) == '' or $id_name == '0') {
        return $l->g(934);
    }
    if (trim($add_sub) == '') {
        return $l->g(935);
    }
    $row_verif = find_info_subnet($add_ip);
    if (isset($row_verif->NETID)) {
        $sql = "update subnet set name='%s', id='%s', MASK='%s'\n\t\t\t\twhere netid = '%s'";
        $arg = array($sub_name, $id_name, $add_sub, $add_ip);
    } else {
        $sql = "insert into subnet (netid,name,id,mask) VALUES ('%s','%s',\n\t\t\t\t\t'%s','%s')";
        $arg = array($add_ip, $sub_name, $id_name, $add_sub);
    }
    mysql2_query_secure($sql, $_SESSION['OCS']["writeServer"], $arg);
    return false;
}
 if (isset($protectedPost['Reset_modif'])) {
     unset($protectedPost['ADD_SUB'], $protectedPost['MODIF']);
     if (isset($protectedGet['value']) and $protectedGet['value'] != '') {
         reloadform_closeme("ipdiscover", true);
     }
 }
 if (isset($protectedPost['ADD_SUB'])) {
     echo "<input type='hidden' name='ADD_SUB' id='ADD_SUB' value='" . $protectedPost['ADD_SUB'] . "'";
 }
 if ($protectedPost['MODIF'] != '') {
     echo "<input type='hidden' name='MODIF' id='MODIF' value='" . $protectedPost['MODIF'] . "'";
 }
 if (isset($protectedPost['ADD_SUB']) or $protectedPost['MODIF']) {
     if ($protectedPost['MODIF']) {
         $title = $l->g(931);
         $result = find_info_subnet($protectedPost['MODIF']);
         if (!isset($protectedPost['RSX_NAME'])) {
             $protectedPost['RSX_NAME'] = $result->NAME;
         }
         if (!isset($protectedPost['ID_NAME'])) {
             $protectedPost['ID_NAME'] = $result->ID;
         }
         if (!isset($protectedPost['ADD_IP'])) {
             $protectedPost['ADD_IP'] = $result->NETID;
         }
         if (!isset($protectedPost['ADD_SX_RSX'])) {
             $protectedPost['ADD_SX_RSX'] = $result->MASK;
         }
         if (isset($protectedGet['value']) and $protectedGet['value'] != '') {
             $protectedPost['ADD_IP'] = $protectedGet['value'];
         }