Проверка счета Киевстар модема в Linux

<?php

function decodePDU($in) {
 $b = 0; $d = 0;
 $out = "";
 foreach (str_split($in, 2) as $ss) {
  $byte = hexdec($ss);
  $c = (($byte & ((1 << 7-$d)-1)) << $d) | $b;
  $b = $byte >> (7-$d);
  $out .= chr($c);
  $d++;
  if ($d == 7) {
   $out .= chr($b);
   $d = 0; $b = 0;
  }
 }
 return $out;
}

function encodePDU($in) {
 $out = "";
 for ($i = 0; $i < strlen($in); $i++) {
  $t = $i%8+1;
  if ($t == 8)
   continue;
  $c = ord($in[$i])>>($i%8);
  $oc = $c;
  $b = ord($in[$i+1]) & ((1 << $t)-1);
  $c = ($b << (8-$t)) | $c;
  $out .= strtoupper(str_pad(dechex($c), 2, '0', STR_PAD_LEFT));
 }
 return $out;
}

if (!isset($argv) || !$argv[1]){
 die("Neet number of service. Sample: <script>.php *111#\n");
}

$number = $argv[1];

print "Number of service: $number \n";

$f = fopen ("/dev/ttyUSB2", "rw+");
fputs($f, "AT+CUSD=1,".encodePDU($number).",15\r\n");

while ($s = fgets($f)) {
 if (substr($s, 0, 5) == "+CUSD") {
  $s = decodePDU(substr(trim($s), 10, -3));
  echo $s."\n";
  if (strpos($s, "1 - Dalee") !== false) {
   fputs($f, "AT+CUSD=1,".encodePDU("1").",15\r\n");
  }
  else
   break;
 }
}

fclose($f);

?>

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