PHP 텔넷 함수 예제 코드

예시, php telnet 기능 구현 코드.

class PHPTelnet {
 var $show_connect_error=1;
< ;피>    var $use_usleep=0;  // 더 빠른 실행을 위해 1로 변경
 // PHP 5가 없으면 Windows 서버에서 1로 변경하지 마세요
 var $sleeptime=125000;
 var $loginsleeptime=1000000;
    var $fp=NULL;
 var $loginprompt;
    var $conn1;
 var $conn2;
    /*
 0 = 성공
 1 = 네트워크 연결을 열 수 없음
 2 = 알 수 없는 호스트
 3 = 로그인 실패
 4 = PHP 버전이 너무 낮음
 */
 함수 연결($server,$user,$pass) {
 $rv=0;
 $vers=explode('.',PHP_VERSION);
 $needvers=array(4,3,0) ;
 $j=count($vers);
 $k=count($needvers);
 if ($k<$j) $j=$k;
 for ($i= 0;$i<$j;$i ) {
 if (($vers[$i] 0)>$needvers[$i]) break;
 if (($vers[$i] 0 )<$needvers[$i]) {
 $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 $rv=1;
 }
        if ($rv) $this->ConnectError($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功能主函数
 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 ($this->show_connect_error) 스위치($num) {
 사례 1: echo '[PHP Telnet] 연결 실패: 네트워크 연결을 열 수 없습니다'; break;
 사례 2: echo '[PHP Telnet] 연결 실패: 알 수 없는 호스트'; break;
 사례 3: echo '[PHP Telnet]  연결 실패: 로그인 실패'; break;
 사례 4: echo '[PHP Telnet] 연결 실패: 서버의 PHP 버전이 PHP Telnet에 비해 너무 낮습니다'; break;
 }
 }
}
?>