Re: Running PSexec within C# - C# Discussion Boards

26-Nov-10 3:15

Hi C# Guru's,

i have recently written a command line C# app that uses psexec to run Netstat on remote machines and sends the results to a text file, it works ok...ish.

firstly, even though i have set the process to psi.UseShellExecute = false and psi.CreateNoWindow = true it still pops up a command window - any idea how i stop this?

secondly, even though it sends most of the output to the text file it cuts it off short, i have used the below code TNA.
while(p.StandardOutput.EndOfStream == false)
{
sw.Write(p.StandardOutput.ReadToEnd());
p.WaitForExit();
sw.Flush();
}

the bottom part of the output file looks like:
TCP 172.17.134.138:80 172.17.134.133:51076 TIME_WAIT 0
TCP 172.17.134.138:80 172.17.134.133:52450 TIME_WAIT 0
TCP 172.17.134.138:80 1

any ideas on how to get the full output?

Many Thanks,

Phil

Luc Pattyn26-Nov-10 3:49

26-Nov-10 3:49

Hi,

your code looks only so so, with a loop, several ReadToEnd and a flush.

assuming you save all incoming text to a file, there is no need to catch it while the netstat app is still running, so simplify your code to first wait for netstat to exit, then wait 500 msec to make sure everything has settled, then just once read all its output; assuming you close the output stream (or use a using statement) there is no need to flush either.

Smile | :)

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Philip Lane30-Nov-10 1:13

30-Nov-10 1:13

Hi,

thanks for post. i'm still a beginner at this...
how would i do what you suggested?

many thanks,

Phil

Luc Pattyn30-Nov-10 1:43

30-Nov-10 1:43

p.WaitForExit();
Thread.Sleep(500);
string s=p.StandardOutput.ReadToEnd();
File.WriteAllText(filepath, s);

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Philip Lane30-Nov-10 3:16

30-Nov-10 3:16

Hi Luc,

thanks for your speedy reply.... it still doesn't work! Frown | :(

i still get the same result, it cuts of some of the output.

when i run psexec manually it does give some output and then pauses for the server to reply with more data. i think this is the point where it cuts out.

i'm open for any more suggestions! Smile | :)

many thanks,

Phil

Luc Pattyn30-Nov-10 3:34

30-Nov-10 3:34

is it repeatable, i.e. does it always produce the exact same output?
if so, can you show the output?
could it be that the target app launches yet another app, whose output is exactly what gets lost?

Smile | :)

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Philip Lane1-Dec-10 5:19

1-Dec-10 5:19

hi,
yes, the output is always the same.

this is the output:

Active Connections

Proto Local Address Foreign Address State PID
TCP 0.0.0.0:80 0.0.0.0 Blush | :O

LISTENING 4
TCP 0.0.0.0:135 0.0.0.0 Blush | :O

LISTENING 688
TCP 0.0.0.0:445 0.0.0.0 Blush | :O

LISTENING 4
TCP 0.0.0.0:3389 0.0.0.0 Blush | :O

LISTENING 1156
TCP 0.0.0.0:49152 0.0.0.0 Blush | :O

LISTENING 392
TCP 0.0.0.0:49153 0.0.0.0 Blush | :O

LISTENING 872
TCP 0.0.0.0:49154 0.0.0.0 Blush | :O

LISTENING 928
TCP 0.0.0.0:49155 0.0.0.0 Blush | :O

LISTENING 496
TCP 0.0.0.0:49157 0.0.0.0 Blush | :O

LISTENING 1280
TCP 0.0.0.0:66258 0.0.0.0 Blush | :O

LISTENING 488
TCP 172.22.139.171:139 0.0.0.0 Blush | :O

LISTENING 4
TCP 172.22.139.171:50362 172.16.66.85:3389 ESTABLISHED 7296
TCP 172.22.139.171:50774 172.16.66.85:389 CLOSE_WAIT 4984
TCP 172.22.139.171:50962 172.16.65.75:2020 ESTABLISHED 2304
TCP 172.22.139.171:51323 172.16.66.136:2528 ESTABLISHED 2536
TCP 172.22.139.171:51377 194.34.15.37:139 ESTABLISHED 4
TCP 172.22.139.171:51523 172.16.66.86:135 TIME_WAIT 0
TCP 172.22.139.171:51527 172.16.66.86:139 TIME_WAIT 0
TCP 172.22.139.171:51530 172.16.66.89:135 TIME_WAIT 0
TCP 172.22.139.171:51536 172.16.66.89:139 TIME_WAIT 0
TCP 172.22.139.171:51539 172.16.66.86:135 ESTABLISHED 688
TCP 172.22.139.171:51540 172.16.66.86:2007 ESTABLISHED 4132
TCP 172.22.139.171:51543 172.16.66.86:139 ESTABLISHED 4
TCP 172.22.139.171:58467 172.16.66.86:1025 ESTABLISHED 2536
TCP 172.22.139.171:60942 172.16.66.85:1025 ESTABLISHED 476
TCP 172.22.139.171:60945 172.16.66.85:1025 ESTABLISHED 2536
TCP 172.22.139.171:61196 172.16.227.140:139 ESTABLISHED 4
TCP 172.22.139.171:62671 172.16.66.92:139 ESTABLISHED 4
TCP 172.22.139.171:66301 172.16.160.12:5061 ESTABLISHED 476
TCP 172.22.139.171:66322 172.16.130.91:4204 ESTABLISHED 2536
TCP 172.22.139.171:66586 172.16.66.85:389 CLOSE_WAIT 4984
TCP 172.22.139.171:66923 172.16.194.31:139 ESTABLISHED 4
TCP 172.22.139.171:65420 172.16.66.85:389 CLOSE_WAIT 4984
TCP 172.22.139.171:65480 172.16.66.85:389 CLOSE_WAIT 4984
TCP [::]:80 [::] Blush | :O

LISTENING 4
TCP [::]:135 [::] Blush | :O

LISTENING 688
TCP [::]:445 [::] Blush | :O

LISTENING 4
TCP [::]:3389 [::] Blush | :O

LISTENING 1156
TCP [::]:49152 [::] Blush | :O

LISTENING 392
TCP [::]:49153 [::] Blush | :O

LISTENING 872
TCP [::]:49154 [::] Blush | :O

LISTENING 928
TCP [::]:49155 [::] Blush | :O

LISTENING 496
TCP [::]:49157 [::] Blush | :O

LISTENING 1280
TCP [::]:66258 [::] Blush | :O

LISTENING 488
TCP [::1]:445 [::1]:51544 ESTABLISHED 4
TCP [::1]:51544 [::1]:445 ESTABLISHED 4
UDP 0.0.0.0:123 *:* 1056
UDP 0.0.0.0:500 *:* 928
UDP 0.0.0.0:4500 *:* 928
UDP 0.0.0.0:5355 *:* 1156
UDP 0.0.0.0:6004 *:* 2536
UDP 127.0.0.1:54417 *:* 2536
UDP 127.0.0.1:55932 *:*

What is my IP??

Sunil G 326-Nov-10 2:37

Sunil G 3

26-Nov-10 2:37

Hi All,

Is there any way to know what is my public IP??
example say my public IP is 202.214.215.12

How would I know my IP??

Please dont say ipconfig.

Thanks,
Sunil G.

harold aptroot26-Nov-10 2:45

harold aptroot

26-Nov-10 2:45

Yes, there is a way, you could ask your NAT device what its (and therefore also your) public IP address is.

Sunil G 326-Nov-10 2:48

Sunil G 3

26-Nov-10 2:48

Can u give me some idea how to do it??

monstale26-Nov-10 2:52

monstale

26-Nov-10 2:52

Hi,

you could use UPnP of your router Wink | ;-)

bye

harold aptroot26-Nov-10 2:54

harold aptroot

26-Nov-10 2:54

MonoTorrent can do it (UPnP and NAT-PMP), Windows has stuff for this build-in as well but it's not very reliable (IIRC it depends on a service which can be disabled), and you could read my article (it's a little old though)

Richard MacCutchan26-Nov-10 2:52

Richard MacCutchan

26-Nov-10 2:52

Try a Google search, there are quite a few sites that can find this information for you. I think one of them may even be called "whatsmyip.com".

Just say 'NO' to evaluated arguments for diadic functions! Ash

Luc Pattyn26-Nov-10 2:54

26-Nov-10 2:54

IMO the only reliable way is by asking the external world. Here[^] is one of many sites that may help.

Smile | :)

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RobK4104-Jun-11 19:20

RobK410

4-Jun-11 19:20

I wrote a command line tool in C# (code included) that will use a service on my server to pull external IP.

http://robkennedy.com/2011/05/13/myip-a-robust-command-line-tool-for-retrieving-local-and-remote-ip-addresses/[^]

Hope this helps.

http://robkennedy.com/ woot

Luc Pattyn5-Jun-11 0:59

5-Jun-11 0:59

That does not help me at all, I did not have the problem, and I did offer a solution here[^].

D'Oh! | :doh:

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CP Vanity has been updated to V2.3

modified on Friday, June 10, 2011 8:43 PM

SerialPort Fire DataRecevie

Bernhard Hiller26-Nov-10 3:50

Bernhard Hiller

26-Nov-10 3:50

My router registers at dyndns.org, so I can query the IP address for my dyndns name.

I Believe In GOD26-Nov-10 1:15

I Believe In GOD

26-Nov-10 1:15

Hi , have a good day ,

I have an Indicator Weight connect to COM port on My Pc ,

When I press the "Print Button" on the Indicator it sent weight to the Com Port ,

And I receive the data by this events :

private void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
     TxtOutPut.Text = serialPort1.ReadExisting();
}

So far so good ,

The Only problem I had is that When I press The "Print Button" on the indicator "
The DataReceived Firing 5 times , Before all the data sent , For Example :
The indicator Show The Weight on it's screen Like "US,NT 4.590 KG"

so When I press "Print Button" On the Indicator its Sent :

1) US,NT --- DataReceived Firing ,
2) Space --- DataReceived Firing ,
3) 4.590 --- DataReceived Firing ,
4) Space --- DataReceived Firing ,
5) "\r\n" --- DataReceived Firing ,

I think It's Must Sent the Weight as a whole , ( as Other Indicators Works ! )

Any Suggest Would be Appreciated !

I know nothing , I know nothing ...

JF201526-Nov-10 1:40

JF2015

26-Nov-10 1:40

Hi,

you should use the "ReadLine" method instead since it reads the response until it receives a "NewLine" (\n).

Try:

private void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
   TxtOutPut.Text = serialPort1.ReadLine();
}

I Believe In GOD26-Nov-10 2:10

I Believe In GOD

26-Nov-10 2:10

Wow !

Thank you so much , Sir , Very Smart replay !

Here is (5) Thumbs Up | :thumbsup:

P.S:
How I could not realize that D'Oh! | :doh:

I know nothing , I know nothing ...

Luc Pattyn26-Nov-10 2:16

26-Nov-10 2:16

The alternative is to wait a while inside the DataReceived handler, so more/all data can come in before you get it all. Say 100 msec.

Or, if you need it fully event driven, start a timer in DataReceived, and read in the Tick handler (don't forget to stop the timer again).

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles] Nil Volentibus Arduum

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I Believe In GOD26-Nov-10 2:21

I Believe In GOD

26-Nov-10 2:21

Nice , I Will try the 100 Msc Things , I think it worth
Since I found more easy than the ReadLine() function ,

Thank you Sir ,

I know nothing , I know nothing ...