PHP实现的Telnet 【引用】
此文来源http://free3.e-168.cn/onlyshep/index.php?action=show&id=36<?
error_reporting(-1);
class Telnet {
var $sock = NULL;
function telnet($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($this->sock);
}
function read_till($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 = $this->getc();
// echo "we wont ".ord($opt)."\n";
fwrite($this->sock,$IAC.$WONT.$opt);
}
elseif (($c == $WILL) || ($c == $WONT)) {
$opt = $this->getc();
// echo "we dont ".ord($opt)."\n";
fwrite($this->sock,$IAC.$DONT.$opt);
}
else {
// echo "where are we? c=".ord($c)."\n";
}
}
}
}
#/$telnet = new telnet("192.168.0.1",23);
#/echo $telnet->read_till("login: ");
#/$tn->write("kongxx\r\n");
#/echo $telnet->read_till("password: ");
#/$tn->write("KONGXX\r\n");
#/echo $telnet->read_till(":> ");
#/$tn->write("ls\r\n");
#/echo $telnet->read_till(":> ");
#/echo $telnet->close();
?>
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