Re: [JSch-users] Remote OS Name

SourceForge Headquarters 225 Broadway Suite 1600 San Diego, CA 92101 +1 (858) 454-5900

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
You can just parse output of "uname".<br>
<br>
Just open ExecChannel for command "PATH=/bin:/usr/bin uname" and read
the name of the OS from the output stream.<br>
If just the name is not enough information, you can try "uname -a"
although parsing this can be tricky due to different output...<br>
<br>
-- Sergey<br>
<br>
Oberhuber, Martin wrote:
<blockquote
 cite="mid:460...@is..."
 type="cite">
  <meta http-equiv="Content-Type" content="text/html; ">
  <meta content="MSHTML 6.00.2900.3395" name="GENERATOR">
  <div dir="ltr" align="left"><span class="421521808-23082008"><font
 color="#0000ff" face="Arial" size="2">What about getting the current
directory right after connect? A</font></span></div>
  <div dir="ltr" align="left"><span class="421521808-23082008"><font
 color="#0000ff" face="Arial" size="2">&nbsp; pwd() </font></span></div>
  <div dir="ltr" align="left"><span class="421521808-23082008"><font
 color="#0000ff" face="Arial" size="2">or</font></span></div>
  <div dir="ltr" align="left"><span class="421521808-23082008"><font
 color="#0000ff" face="Arial" size="2">&nbsp; realpath(".")</font></span></div>
  <div dir="ltr" align="left"><span class="421521808-23082008"><font
 color="#0000ff" face="Arial" size="2">call should give you the "home
directory" right after connect</font></span></div>
  <div dir="ltr" align="left"><span class="421521808-23082008"><font
 color="#0000ff" face="Arial" size="2">and thus give you some
indication about the remote OS type.</font></span></div>
  <div dir="ltr" align="left"><span class="421521808-23082008"></span>&nbsp;</div>
  <div align="left"><font color="#333333" face="Arial" size="-1">Cheers,</font></div>
  <div align="left"><font color="#333333" face="Arial" size="-1">--</font></div>
  <div align="left"><font color="#333333" face="Arial" size="-1"><strong>Martin&nbsp;Oberhuber</strong>,
Senior Member of Technical Staff, <font color="#cc0000"><strong>Wind
River</strong></font></font></div>
  <div align="left"><font color="#333333" face="Arial" size="-1">Target
Management Project Lead, DSDP PMC Member</font></div>
  <div align="left"><font color="#333333" face="Arial" size="-1"><a
 moz-do-not-send="true" href="http://www.eclipse.org/dsdp/tm">http://www.eclipse.org/dsdp/tm</a></font></div>
  <div align="left">&nbsp;</div>
  <div>&nbsp;</div>
  <br>
  <blockquote
 style="border-left: 2px solid rgb(0, 0, 255); padding-left: 5px; margin-left: 5px; margin-right: 0px;">
    <div class="OutlookMessageHeader" dir="ltr" align="left"
 lang="en-us">
    <hr tabindex="-1"> <font face="Tahoma" size="2"><b>From:</b>
srikanth k.m [<a class="moz-txt-link-freetext" href="mailto:km...@gm...">mailto:km...@gm...</a>] <br>
    <b>Sent:</b> Saturday, August 23, 2008 8:37 AM<br>
    <b>To:</b> Oberhuber, Martin; <a class="moz-txt-link-abbreviated" href="mailto:jsc...@li...">jsc...@li...</a><br>
    <b>Subject:</b> Re: [JSch-users] Remote OS Name<br>
    </font><br>
    </div>
    <div><br>
Thanks for your answer. I am trying to connect to SFTP servers on
different platforms. One of them is on&nbsp; MVS (mainframe). Since the
folder structure for MainFrame is different , I will need to handle
that differently. So I need to know&nbsp; when I connect to a server the OS
it is running on.</div>
    <div>&nbsp;</div>
    <div>Any pointers on how to achieve this??</div>
    <div>&nbsp;</div>
    <div>Thanks<br>
&nbsp;</div>
    <div><span class="gmail_quote">On 8/22/08, <b
 class="gmail_sendername">Oberhuber, Martin</b> &lt;<a
 moz-do-not-send="true" href="mailto:Mar...@wi...">Mar...@wi...</a>&gt;
wrote:</span>
    <blockquote class="gmail_quote"
 style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">Hello,<br>
      <br>
It is my understanding that JSch implements the IETF protocol<br>
standard very strictly. And the sftp protocol standard<br>
tries exactly to get you away from having to know what<br>
OS name or version is running remotely -- since the protocol<br>
should be standardized and the same across all OS names<br>
and types.<br>
      <br>
You could look up Sftp on Wikipedia, and the Wikipedia<br>
References will bring you to the official protocol standard<br>
discussion on IETF:<br>
      <a moz-do-not-send="true"
 href="http://tools.ietf.org/wg/secsh/draft-ietf-secsh-filexfer/">http://tools.ietf.org/wg/secsh/draft-ietf-secsh-filexfer/</a><br>
      <br>
The standard RFC is now at version 13, but it is my understanding<br>
that there are practically no servers out there in the wild which<br>
implement the latest standard revisions -- v3 (!) seems to be the<br>
most widely used revision if I'm not mistaken.<br>
      <br>
The protocol does give support for querying the protocol revision<br>
that the server supports, and it does give you a String identifying<br>
the remote server software (e.g.<br>
&nbsp;&nbsp;"Remote protocol version 1.99, remote software version OpenSSH_3.9p1"<br>
You can see that version String under "debug1" if you use a<br>
commandline client, e.g.<br>
      <br>
&nbsp;&nbsp;sftp -vv myhost<br>
      <br>
That would be the SSH Server's version, the sftp protocol version<br>
can be seen with "debug2:" later in the log:<br>
&nbsp;&nbsp;" debug2: Remote version: 3"<br>
      <br>
Hope that helps,<br>
--<br>
Martin Oberhuber, Senior Member of Technical Staff, Wind River<br>
Target Management Project Lead, DSDP PMC Member<br>
      <a moz-do-not-send="true" href="http://www.eclipse.org/dsdp/tm">http://www.eclipse.org/dsdp/tm</a><br>
      <br>
      <br>
      <br>
&gt; -----Original Message-----<br>
&gt; From: <a moz-do-not-send="true"
 href="mailto:jsc...@li...">jsc...@li...</a><br>
&gt; [mailto:<a moz-do-not-send="true"
 href="mailto:jsc...@li...">jsc...@li...</a>]
On Behalf<br>
&gt; Of srikanth k.m<br>
&gt; Sent: Friday, August 22, 2008 10:23 AM<br>
&gt; To: <a moz-do-not-send="true"
 href="mailto:jsc...@li...">jsc...@li...</a><br>
&gt; Subject: [JSch-users] (no subject)<br>
&gt;<br>
&gt; Hi all,<br>
&gt;<br>
&gt; I am trying to check if there is any way by which we can get the<br>
&gt; Operating system name of the machine where the SFTP server is
running.<br>
&gt;<br>
&gt; FTP Protocol provides a method getSystemName() that returns the OS<br>
&gt; name. Is there something similar for SFTP too?<br>
&gt;<br>
&gt;<br>
&gt; Thanks<br>
&gt; --<br>
&gt;<br>
&gt; --------------------------------------------------------------<br>
&gt; -----------<br>
&gt; This SF.Net email is sponsored by the Moblin Your Move<br>
&gt; Developer's challenge<br>
&gt; Build the coolest Linux based applications with Moblin SDK &amp;<br>
&gt; win great prizes<br>
&gt; Grand prize is a trip for two to an Open Source event<br>
&gt; anywhere in the world<br>
&gt; <a moz-do-not-send="true"
 href="http://moblin-contest.org/redirect.php?banner_id=100&amp;url=/">http://moblin-contest.org/redirect.php?banner_id=100&amp;url=/</a><br>
&gt; _______________________________________________<br>
&gt; JSch-users mailing list<br>
&gt; <a moz-do-not-send="true"
 href="mailto:JSc...@li...">JSc...@li...</a><br>
&gt; <a moz-do-not-send="true"
 href="https://lists.sourceforge.net/lists/listinfo/jsch-users">https://lists.sourceforge.net/lists/listinfo/jsch-users</a><br>
&gt;<br>
    </blockquote>
    </div>
    <br>
    <br clear="all">
    <br>
-- <br>
impossible says "I'M POSSIBLE" </blockquote>
  <pre wrap="">
<hr size="4" width="90%">
-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK &amp; win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
<a class="moz-txt-link-freetext" href="http://moblin-contest.org/redirect.php?banner_id=100&url=/">http://moblin-contest.org/redirect.php?banner_id=100&amp;url=/</a>
  </pre>
  <pre wrap="">
<hr size="4" width="90%">
_______________________________________________
JSch-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:JSc...@li...">JSc...@li...</a>
<a class="moz-txt-link-freetext" href="https://lists.sourceforge.net/lists/listinfo/jsch-users">https://lists.sourceforge.net/lists/listinfo/jsch-users</a>
  </pre>
</blockquote>
<br>
</body>
</html>