Interacting with a process that I ran with subprocess module

[py.adriano]

Hi folks,

I'm trying to use the nmap runtime interaction feature while using it
with the subprocess module. For those not familiar with nmap, the
runtime interaction feature allow users to get informations about the
scan stats during the nmap execution. More at:
http://www.insecure.org/nmap/man/man-runtime-interaction.html
If someone want to try, just run nmap and try to type some keys to see
what happens. This only works with nmap 4.00 and above.

Ok.. What I've tried is shown below:

from subprocess import Popen, PIPE
nmap = Popen("nmap -T3 -A 10.0.0.1-254", stdin=PIPE, stdout=PIPE,
stderr=PIPE, shell=True, bufsize=1)

To interact with nmap, I tried:

nmap.communicate("?")

And I tried this, also:

nmap.stdin.write("?")
nmap.stdout.read()

What's wrong? Is that suposed to be this way? Is there a better way to
interact with it that I've missed? Any help is very welcome. Thanks in
advance!

Cheers!

 

[Diez B. Roggisch]

Hi folks,

I'm trying to use the nmap runtime interaction feature while using it
with the subprocess module. For those not familiar with nmap, the
runtime interaction feature allow users to get informations about the
scan stats during the nmap execution. More at:
http://www.insecure.org/nmap/man/man-runtime-interaction.html
If someone want to try, just run nmap and try to type some keys to see
what happens. This only works with nmap 4.00 and above.

Ok.. What I've tried is shown below:

from subprocess import Popen, PIPE
nmap = Popen("nmap -T3 -A 10.0.0.1-254", stdin=PIPE, stdout=PIPE,
stderr=PIPE, shell=True, bufsize=1)

To interact with nmap, I tried:

nmap.communicate("?")

And I tried this, also:

nmap.stdin.write("?")
nmap.stdout.read()

What's wrong? Is that suposed to be this way? Is there a better way to
interact with it that I've missed? Any help is very welcome. Thanks in
advance!

Programs that interact with users usually require a terminal to be run
from. This is not the case when using pipes. Use pexpect.

Diez

 

[py.adriano]

Well...

I found pexpect as you said, but I also found that it doesn't work on
windows. I need a cross-platform solution, as the program is going to
run on several operating systems. Any other sugestion?

Cheers!