SSH2更改用户密码 [英] SSH2 change a user password

问题描述

我一直在使用SSH，现在我需要通过PHP的ssh2更改用户的密码，

这里是我的代码：

  $ stream = ssh2_exec（$ ssh，'passwd test1234'）; 
 stream_set_blocking（$ stream，true）; 
 $ data =''; 
 while（$ buffer = fread（$ stream，4096））{
 $ data。= $ buffer; 
} 
 fclose（$ stream）; 
 echo $ data。< hr />; 
 
 $ stream = ssh2_exec（$ ssh，'saulius123'）; 
 stream_set_blocking（$ stream，true）; 
 $ data =''; 
 while（$ buffer = fread（$ stream，4096））{
 $ data。= $ buffer; 
} 
 echo $ data。< hr />; 
 $ stream = ssh2_exec（$ ssh，'saulius123'）; 
 stream_set_blocking（$ stream，true）; 
 $ data =''; 
 while（$ buffer = fread（$ stream，4096））{
 $ data。= $ buffer; 
} 
 echo $ data。< hr />; 
  

但是这只是使我的PHP脚本挂起，任何想法？

解决方案

ssh2_exec 调用命令;

也就是说， $ stream 可让您访问到标准输入和标准输出。因此，在尝试读回之前，您需要在 $ stream 上使用 fwrite 输出。

由于您已将数据流置于阻塞模式，因此 passwd 正在等待您的输入同时您的脚本正在等待 passwd 。因此，脚本会挂起。

I've been playing around with SSH and now I need to change a user's password via the PHP's ssh2,

Here's my code:

$stream = ssh2_exec($ssh, 'passwd test1234');
stream_set_blocking($stream, true);
$data = '';
while($buffer = fread($stream, 4096)) {
    $data .= $buffer;
}
fclose($stream);
echo $data."<hr/>";

$stream = ssh2_exec($ssh, 'saulius123');
stream_set_blocking($stream, true);
$data = '';
while($buffer = fread($stream, 4096)) {
    $data .= $buffer;
}
echo $data."<hr/>";
$stream = ssh2_exec($ssh, 'saulius123');
    stream_set_blocking($stream, true);
    $data = '';
    while($buffer = fread($stream, 4096)) {
        $data .= $buffer;
    }
    echo $data."<hr/>";

However this just make's my PHP script hang, any ideas?

解决方案

ssh2_exec invokes the command; to send input, you'll need to write to the stream.

That is, $stream gives you access to standard input and standard output. So you'll need to write the password you wish to set using fwrite on $stream before trying to read back the output.

Since you've put the stream in blocking mode, passwd is awaiting your input (the password) at the same time your script is waiting for passwd. As a result, the script hangs.

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