Telnet接続やコマンドの転送、戻り値の取得などを実現するためにPHPが使われています！

php来实现telnet的的连接、、、传递命令、返回值等等功能

＆lt;？php
error_reporting（-1）;
classtelnet {

bar $ sock = null; $host,$port) {
 $this->sock = fsockopen($host,$port);
socket_set_timeout($this->sock,2,0);
 }

 function close() {
 if ($this->sock) fclose($this->sock);
 $this->sock = NULL;
 }

 function write($buffer) {
 $buffer = str_replace(chr(255), chr(255).chr(255),$buffer);
 fwrite($this->sock,$buffer);
 }

 function getc() {
 return fgetc($this->sock);
 }

 関数 read_till($what) {
 $buf = '';
 while (1) {
 $IAC = chr(255);

 $DONT = chr(254);
 $DO = chr(253) ;

 $WONT = chr(252);
 $WILL = chr(251);

 $theNULL = chr(0);

 $c = $this->getc();

 if ($c === false) return $buf;
 if ($c == $theNULL) {
 continue;
 }

 if ($c == "1") {
 continue;
 }

 if ($c ! = $IAC) {
 $buf .= $c;

 if ($what == (substr($buf,strlen($buf)-strlen($what)))) {
 return $buf;
 }
 else {
 continue;
 }
 }

 $c = $this->getc();

 if ($c == $IAC) {
 $buf .= $c;
 }
 else if (( $c == $DO) || ($c == $DONT)) {
 $opt = $this->getc();
 // echo "".ord($opt)."n";
 fwrite($this->gt; sock,$IAC.$WONT.$opt);
 }
 elseif (($c == $WILL) || ($c == $WONT)) {
 $opt = $this->getc();
 // echo "我々は ".ord($opt)."n";
 fwrite($this->sock,$IAC.$DONT.$opt);
 }
 else {
 // echo "where c=".ord($c)."n";
 }
 }
 }
}

/*
$telnet = new telnet("192.168.0.1",23);
echo $telnet- >read_till("ログイン: ");
$telnet->write("kongxxrn");
echo $telnet->read_till("パスワード: ");
$telnet->write("KONGXXrn") ;
echo $telnet->read_till(":> ");
$telnet->write("lsrn");
echo $telnet->read_till(":> ");
echo $telnet ->close();

等機能、来实现、返值

🎜