Telnet可以帮助我们完成远程登录。其中实现它的代码形式并不固定,这里我们介绍的则是PHP Telnet程序。那么就让我们来一起看看具体的代码是如何编写的。那么具体的内容请大家浏览正文。
PHP Telnet程序
PHP代码:
PHP code
<?php
/**
* name:薛如飞
* qq:6706250
* e-mail:xuerufei@163.com
* blog:[url=http://hi.baidu.com/]http://hi.baidu.com/[/url]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
/*
PHP Telnet 1.1
by Antone Roundy
adapted from code found on the PHP website
public domain
*/
class PHP Telnet
{
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 PHP Telnet()
{
$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="[url=http://www.geckotribe.com/php-Telnet/errors/fsockopen.php]http://www.geckotribe.com/php-Telnet/errors/fsockopen.php">Connect[/url] failed: Unable to open network connection</a><br />'; break;
case 2: echo '<br />[PHP Telnet] <a href="[url=http://www.geckotribe.com/php-Telnet/errors/unknown-host.php]http://www.geckotribe.com/php-Telnet/errors/unknown-host.php">Connect[/url] failed: Unknown host</a><br />'; break;
case 3: echo '<br />[PHP Telnet] <a href="[url=http://www.geckotribe.com/php-Telnet/errors/login.php]http://www.geckotribe.com/php-Telnet/errors/login.php">Connect[/url] failed: Login failed</a><br />'; break;
case 4: echo '<br />[PHP Telnet] <a href="[url=http://www.geckotribe.com/php-Telnet/errors/php-version.php]http://www.geckotribe.com/php-Telnet/errors/php-version.php">Connect[/url] failed: Your server\'s PHP version is too low for PHP Telnet</a><br />'; break;
}
}
}
?>
- 1.
- 2.
- 3.
- 4.
- 5.
- 6.
- 7.
- 8.
- 9.
- 10.
- 11.
- 12.
- 13.
- 14.
- 15.
- 16.
- 17.
- 18.
- 19.
- 20.
- 21.
- 22.
- 23.
- 24.
- 25.
- 26.
- 27.
- 28.
- 29.
- 30.
- 31.
- 32.
- 33.
- 34.
- 35.
- 36.
- 37.
- 38.
- 39.
- 40.
- 41.
- 42.
- 43.
- 44.
- 45.
- 46.
- 47.
- 48.
- 49.
- 50.
- 51.
- 52.
- 53.
- 54.
- 55.
- 56.
- 57.
- 58.
- 59.
- 60.
- 61.
- 62.
- 63.
- 64.
- 65.
- 66.
- 67.
- 68.
- 69.
- 70.
- 71.
- 72.
- 73.
- 74.
- 75.
- 76.
- 77.
- 78.
- 79.
- 80.
- 81.
- 82.
- 83.
- 84.
- 85.
- 86.
- 87.
- 88.
- 89.
- 90.
- 91.
- 92.
- 93.
- 94.
- 95.
- 96.
- 97.
- 98.
- 99.
- 100.
- 101.
- 102.
- 103.
- 104.
- 105.
- 106.
- 107.
- 108.
- 109.
- 110.
- 111.
- 112.
- 113.
- 114.
- 115.
- 116.
- 117.
- 118.
- 119.
- 120.
- 121.
- 122.
- 123.
- 124.
- 125.
- 126.
- 127.
- 128.
- 129.
- 130.
- 131.
- 132.
- 133.
- 134.
- 135.
- 136.
- 137.
- 138.
- 139.
- 140.
- 141.
- 142.
- 143.
- 144.
- 145.
- 146.
- 147.
- 148.
- 149.
- 150.
- 151.
- 152.
- 153.
- 154.
- 155.
- 156.
- 157.
- 158.
- 159.
- 160.
- 161.
- 162.
- 163.
- 164.
- 165.
- 166.
- 167.
- 168.
- 169.
- 170.
- 171.
- 172.
- 173.
- 174.
- 175.
- 176.
- 177.
- 178.
- 179.
- 180.
- 181.
- 182.
- 183.
- 184.
- 185.
- 186.
- 187.
- 188.
- 189.
- 190.
- 191.
- 192.
- 193.
- 194.
- 195.
- 196.
- 197.
- 198.
- 199.
- 200.
- 201.
- 202.
- 203.
- 204.
- 205.
- 206.
- 207.
- 208.
- 209.
- 210.
- 211.
- 212.
- 213.
- 214.
- 215.
- 216.
- 217.
- 218.
- 219.
- 220.
- 221.
- 222.
- 223.
- 224.
- 225.
- 226.
- 227.
- 228.
- 229.
- 230.
- 231.
- 232.
- 233.
- 234.
- 235.
- 236.
- 237.
- 238.