function toHex($s)
{
$i = 0;
$t = '';
while (isset($s[$i])) {
$t .= padHex(ord($s[$i++]), 2);
}
return $t;
}
function secToHexBE($sec)
{
// converts sec to a Big endian hexadecimal
// representation of the number of second;
// 4 hexadecimal numbers with '0' padding
//
$hexSec = padHex(dechex($sec), 4);
return $hexSec;
//return Big Endian
}
function addTimer($mac, $h, $m, $sec, $action, $rep, &$s20Table)
{
srand();
$timerList = $s20Table[$mac]['details'];
// print_r($timerList);
$nTimers = count($timerList);
$stay = 1;
while ($stay) {
$stay = 0;
$newDecCode = rand(0, 65535);
$newCode = padHex(dechex($newDecCode), 4);
for ($k = 0; $k < $nTimers; $k++) {
if ($newCode == $timerList[$k]['recCode']) {
$stay = 1;
}
}
}
$date = getDateFromTimerCode("", $s20Table[$mac]);
$relevant = buildSetTimerString($h, $m, $sec, $action, $rep, $date);
$writeMsg = MAGIC_KEY . "XXXX" . WRITE_SOCKET_CODE . $mac . TWENTIES . FOUR_ZEROS . "0300001C00" . $newCode . twenties(16) . $relevant;
$writeMsg = adjustMsgSize($writeMsg);
$res = createSocketSendHexMsgWaitReply($mac, $writeMsg, $s20Table);
$tt = getAndParseTimerTable($mac, $s20Table);
$s20Table[$mac]['details'] = $tt;
return $res;
}
function setTimeZone($mac, $tz, &$s20Table)
{
//
// Sets the timezone in table 4 to $tz
//
$table = 4;
$vflag = "17";
$recTable = getTable($mac, $table, $vflag, $s20Table);
// Set timezone
$tzSetString = "00";
$tzValString = padHex(dechex($tz), 2);
$tzString = $tzSetString . $tzValString;
$newTableAux = substr_replace($recTable, $tzString, 2 * 162, 2 * 2);
// replace receive code with send code
$newTableAux = substr_replace($newTableAux, WRITE_SOCKET_CODE, 2 * 4, 4);
//
// Delete byte 18 (??)
// Wireshark shows...
//
$newTable = substr_replace($newTableAux, "", 18 * 2, 2);
//
// Delete byte 25 and 26 of resulting (??)
// Wireshark shows...
//
$newTable = substr_replace($newTable, "", 25 * 2, 4);
// Update msg size, just in case it has changed
$newTable = adjustMsgSize($newTable);
$reply = createSocketSendHexMsgWaitReply($mac, $newTable, $s20Table);
if ($reply == "") {
$s20Table[$mac]['off'] = time();
}
return $reply;
}