PHP Telnet関数のサンプルコード

例、PHP Telnet 関数の実装コード。

class PHPTelnet {
 var $show_connect_error=1;
    var $use_usleep=0;  // 実行を高速化するには 1 に変更します
 // PHP 5 を使用していない限り、Windows サーバーでは 1 に変更しないでください
 var $sleeptime=125000;
 var $loginsleeptime=1000000;
    var $fp=NULL;
 var $loginprompt;
    var $conn1;
 var $conn2;
    /*
 0 = 成功
 1 = ネットワーク接続を開けません
 2 = 不明なホスト
 3 = ログイン失敗
 4 = PHP バージョンが低すぎます
 */
 function Connect($server,$user,$pass) {
 $rv=0;
 $vers=explode('.',PHP_VERSION);
 $needvers=array(4,3,0);
 $j=count($vers);
 $k=count($needvers) ;
 if ($k for ($i=0;$i if (($vers[$i]+0)>$ needvers[$i]) Break;
 if (($vers[$i]+0) $this->ConnectError(4);
 return 4;
 }
 }
        $this->Disconnect();
        if (strlen($server)) {
 if (preg_match('/[^0-9.]/',$server)) {
 $ip=gethostbyname($server);
 if ($ip==$server ) {
 $ip='';
 $rv=2;
 }
 } else $ip=$server;
 } else $ip='127.0.0.1';
        if (strlen($ip)) {
 if ($this->fp=fsockopen($ip,23)) {
 fputs($this->fp,$this->conn1);
 $this- >Sleep();
                fputs($this->fp,$this->conn2);
 $this->Sleep();
 $this->GetResponse($r);
 $r=explode("n",$ r);
 $this->loginprompt=$r[count($r)-1];
                fputs($this->fp,"$usern");
 $this->Sleep();
                fputs($this->fp,"$passn");
 if ($this->use_usleep) usleep($this->loginsleeptime);
 else sleep(1);
 $this->GetResponse( $r);
 $r=explode("n",$r);
 if (($r[count($r)-1]=='')||($this->loginprompt==$ r[count($r)-1])) {
 $rv=3;
 $this->Disconnect();
 }
 } else $rv=1;
 }
ConnectError($rv);
 return $rv;
 }
    function Disconnect($exit=1) {
 if ($this->fp) {
 if ($exit) $this->DoCommand('exit',$junk);
 fclose($this->fp );
 $this->fp=NULL;
 }
 }
    function DoCommand($c,&$r) {
 if ($this->fp) {
 fputs($this->fp,"$cn");
 $this->Sleep();
 $ this->GetResponse($r);
 $r=preg_replace("/^.*?n(.*)n[^n]*$/","$1",$r);
 }
 return $ this->fp?1:0;
 }
    function GetResponse(&$r) {
 $r='';
 do {
 $r.=fread($this->fp, 1024);
 $s=socket_get_status($this->fp);
 } while ($s['unread_bytes']);
 }
    function Sleep() {
 if ($this->use_usleep) usleep($this->sleeptime);
 else sleep(1);
 }
    //telnet機能主関数数
 function PHPTelnet() {
 $this->conn1=chr(0xFF).chr(0xFB).chr(0x1F).chr(0xFF).chr(0xFB).
 chr(0x20) .chr(0xFF).chr(0xFB).chr(0x18).chr(0xFF).chr(0xFB).
 chr(0x27).chr(0xFF).chr(0xFD).chr(0x01).chr(0xFF ).chr(0xFB).
 chr(0x03).chr(0xFF).chr(0xFD).chr(0x03).chr(0xFF).chr(0xFC).
 chr(0x23).chr(0xFF).chr (0xFC).chr(0x24).chr(0xFF).chr(0xFA).
 chr(0x1F).chr(0x00).chr(0x50).chr(0x00).chr(0x18).chr(0xFF)。
 chr(0xF0).chr(0xFF).chr(0xFA).chr(0x20).chr(0x00).chr(0x33).
 chr(0x38).chr(0x34).chr(0x30).chr(0x30) ).chr(0x2C).chr(0x33).
 chr(0x38).chr(0x34).chr(0x30).chr(0x30).chr(0xFF).chr(0xF0).
 chr(0xFF).chr (0xFA).chr(0x27).chr(0x00).chr(0xFF).chr(0xF0).
 chr(0xFF).chr(0xFA).chr(0x18).chr(0x00).chr(0x58)。 chr(0x54).
 chr(0x45).chr(0x52).chr(0x4D).chr(0xFF).chr(0xF0);
 $this->conn2=chr(0xFF).chr(0xFC).chr (0x01).chr(0xFF).chr(0xFC).
 chr(0x22).chr(0xFF).chr(0xFE).chr(0x05).chr(0xFF).chr(0xFC).chr(0x21);
 }
    function ConnectError($num) {
 if ($this->show_connect_error) switch ($num) {
 case 1: echo '[PHP Telnet] 接続に失敗しました: ネットワーク接続を開けません'; Break;
 ケース 2: echo '[PHP Telnet] 接続に失敗しました: 不明なホスト'; Break;
 ケース 3: echo '[PHP Telnet] 接続に失敗しました: ログインに失敗しました'; Break;
 ケース 4: echo '[PHP Telnet] 接続に失敗しました: サーバーの PHP バージョンが PHP Telnet には低すぎます'; Break;
 }
 }
}
?>