(在线等)求助一个php telnet的问题
前几天看了网上一个牛人写的php telnet的源码
<?php
/**
* name:薛如飞
* qq:6706250
* e-mail:xuerufei@163.com
* blog:<a href="http://hi.baidu.com/" target="_blank">http://hi.baidu.com/</a>飞云盖天
* date:08.08.28
**/
if (isset($_POST['host']) and isset($_POST['user']))
{
$host= $_POST['host'];
$user= $_POST['user'];
$pass= $_POST['pass'];
$cmd= stripslashes($_POST['cmd']);
require_once "phptelnet.php";
$telnet = new PHPTelnet();
$telnet->show_connect_error=0;
$result = $telnet->Connect($host,$user,$pass);
switch ($result)
{
case 0:
$telnet->DoCommand($cmd, $result);
echo $result;
$telnet->Disconnect();
break;
case 1:
echo '[PHP Telnet] Connect failed: Unable to open network connection';
break;
case 2:
echo '[PHP Telnet] Connect failed: Unknown host';
break;
case 3:
echo '[PHP Telnet] Connect failed: Login failed';
break;
case 4:
echo '[PHP Telnet] Connect failed: Your PHP version does not support PHP Telnet';
break;
}
}
else
{
?>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<form action="index.php" method="post" name="form0" id="form0">
<p> </p>
<p align="center" >Telnet</p>
<table width="200" border="0" align="center">
<tr>
<td width="81" height="18">host:</td>
<td width="109"><input name="host" type="text" size="16" value="" /></td>
</tr>
<tr>
<td width="81" height="18">user:</td>
<td width="109"><input name="user" type="text" size="16" value="" /></td>
</tr>
<tr>
<td width="81" height="18">pass:</td>
<td width="109"><input name="pass" type="text" size="16" value="" /></td>
</tr>
<tr>
<td width="81" height="18">cmd:</td>
<td width="109">
<textarea rows="6" name="cmd" cols="16"></textarea></td>
</tr>
<tr>
<td> </td>
<td><input type="submit" name="Submit" value="提交" /></td>
</tr>
</table>
<p> </p>
</form>
<?php
}
?>
<?php
/*
PHPTelnet 1.1
by Antone Roundy
adapted from code found on the PHP website
public domain
*/
class PHPTelnet {
var $show_connect_error=1;
var $use_usleep=0; // change to 1 for faster execution
// don't change to 1 on Windows servers unless you have PHP 5
var $sleeptime=125000;
var $loginsleeptime=1000000;
var $fp=NULL;
var $loginprompt;
var $conn1;
var $conn2;
/*
0 = success
1 = couldn't open network connection
2 = unknown host
3 = login failed
4 = PHP version too low
*/
function Connect($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,"$user\r");
$this->Sleep();
fputs($this->fp,"$pass\r");
if ($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($this->fp,"$c\r");
$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,1000);
$s=socket_get_status($this->fp);
} while ($s['unread_bytes']);
}
function Sleep() {
if ($this->use_usleep) usleep($this->sleeptime);
else sleep(1);
}
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 '<br />[PHP Telnet] <a href="<a href="http://www.geckotribe.com/php-telnet/errors/fsockopen.php" target="_blank">http://www.geckotribe.com/php-telnet/errors/fsockopen.php">Connect</a> failed: Unable to open network connection</a><br />'; break;
case 2: echo '<br />[PHP Telnet] <a href="<a href="http://www.geckotribe.com/php-telnet/errors/unknown-host.php" target="_blank">http://www.geckotribe.com/php-telnet/errors/unknown-host.php">Connect</a> failed: Unknown host</a><br />'; break;
case 3: echo '<br />[PHP Telnet] <a href="<a href="http://www.geckotribe.com/php-telnet/errors/login.php" target="_blank">http://www.geckotribe.com/php-telnet/errors/login.php">Connect</a> failed: Login failed</a><br />'; break;
case 4: echo '<br />[PHP Telnet] <a href="<a href="http://www.geckotribe.com/php-telnet/errors/php-version.php" target="_blank">http://www.geckotribe.com/php-telnet/errors/php-version.php">Connect</a> failed: Your server\'s PHP version is too low for PHP Telnet</a><br />'; break;
}
}
}
?>
我觉得跟这个有关
