要4秒才能有返回值。主要是$telnet->read_till("\> ");这一句慢。如果程序中多几个这样地命令,就要半分钟以上。
请帮看看。
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("127.0.0.1",23);
$telnet->read_till("login:");
$telnet->write("admin\r\n");
$telnet->read_till("password:");
$telnet->write("admin\r\n");echo $telnet->read_till("\>");
$telnet->write("dir\r\n");echo $telnet->read_till("\> ");
$telnet->close();
请帮看看。
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("127.0.0.1",23);
$telnet->read_till("login:");
$telnet->write("admin\r\n");
$telnet->read_till("password:");
$telnet->write("admin\r\n");echo $telnet->read_till("\>");
$telnet->write("dir\r\n");echo $telnet->read_till("\> ");
$telnet->close();
解决方案 »
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