PHP 从窗口机器上的套接字读取 - PHP Read from socket on windows machine

我正在尝试编写一个"简单"的PHP程序，该程序应该在套接字中写入和读取字符串（端口23上的telnet）。

套接字连接是使用pfsockopen（或socket_connect）功能进行的，它似乎工作正常（通过wireshark验证）。问题是当我尝试使用 fread 或 socket_read 从套接字读取时。这两个函数返回的缓冲区不可读（没有文本，但有特殊的 ascii 字符）。

考虑php脚本在Windows XP PC上运行。您知道在Windows PC和telnet协议上使用这些库的任何限制吗？

    $header1=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);
$fp=pfsockopen("10.129.127.33",23);
fputs($fp,$header1);
sleep(1);
$output=fread($fp,8164); 
echo $output;

连接是否成功？
服务器是否允许端口 23 上的连接？
这可能会对您有所帮助

fputs（$fp，"string"）;

do 
{ 
$output.=fread($fp, 80); 
// read line by line, or at least small chunks
$stat=socket_get_status($fp);
}
while($stat["unread_bytes"]);
$output = str_replace("'n", "<br>", $output);''for new line in HTML
echo $output;

以下是我使用的 TELNET 标头

$header1=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).ch.(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);
        $header2=chr(0xFF).chr(0xFC).chr(0x01).chr(0xFF).chr(0xFC).chr(0x22).chr(0xFF).chr(0xFE).chr(0x05).chr(0xFF).chr(0xFC).chr(0x21);
$fp=fsockopen("192.168.125.6",23);  

//**********Send telnet header****************
fputs($fp,$header1);
usleep(1000);
fputs($fp,$header2);
usleep(1000);

<?php
# Generating output by telneting a router
$username='myusername';
$password='mypassword';
$ip="192.168.0.1";
    $Telnet_Header = 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);
$Telnet_Header2 = chr(0xFF).chr(0xFC).chr(0x01).chr(0xFF).chr(0xFC).chr(0x22).chr(0xFF).chr(0xFE).chr(0x05).chr(0xFF).chr(0xFC).chr(0x21);
$Port = 23;
$Conn = fsockopen($ip, $Port);
fputs($Conn,$Telnet_Header);
sleep(1);
fputs($Conn,$Telnet_Header2);
sleep(1);
fputs($Conn,$username."'r");
sleep(5);
fputs($Conn,$password."'r");
sleep(1);
fputs($Conn,$username."'r");
sleep(5);
fputs($Conn,$password."'r");
sleep(5);
fputs($Conn,"en 'r"); 
   sleep(3);
fputs($Conn,"conf t'r"); 
   sleep(3);
fputs($Conn,"terminal length 0'r"); 
   sleep(3);
fputs($Conn,"sh run'r"); 
   $output="";
do
{
    $output.=fread($Conn, 1000);
    $stat=socket_get_status($Conn);
}while($stat["unread_bytes"]);
$output = explode("'n", $output);
for ($i=6;$i<count($output)-1;$i++)
    {
    echo ($output[$i]."'n");
    }
?>