problem with PIPE

[Dhika Cikul]

Hello,

I'm new in Python, i don't know my subject is correct or wrong. I have
problem with my script. I want to change password with passwd password
in python without user submitted anything from keyboard. I get
tutorial that i must use pipe to process this. And this is my code :

 
1.
2. #!/usr/bin/python
3.
4. import os
5.
6. COMMAND = 'passwd'
7. PASSWD  = 'mypassword'
8.
9. # open a pipe to passwd program and
10. # write the data to the pipe
11. p = os.popen("%s" % COMMAND, 'w')
12. p.write(PASSWD)
13. p.write('\n')
14. p.write(PASSWD)
15. p.close()
16.
 

but i got this error :

[output]
[cp@server cp]$ ./password
Changing password for user cp.
Changing password for cp
(current) UNIX password: passwd: Authentication token manipulation error
[/output]

Anyone can help me how to write to pipe.. i try several method, and always fail.

Thank's
--
Dhika Cikul

[Felix Benner]

Dhika Cikul schrieb:

Hello,

I'm new in Python, i don't know my subject is correct or wrong. I have
problem with my script. I want to change password with passwd password
in python without user submitted anything from keyboard. I get
tutorial that i must use pipe to process this. And this is my code :

  1.
  2. #!/usr/bin/python
  3.
  4. import os
  5.
  6. COMMAND = 'passwd'
  7. PASSWD  = 'mypassword'
  8.
  9. # open a pipe to passwd program and
 10. # write the data to the pipe
 11. p = os.popen("%s" % COMMAND, 'w')
 12. p.write(PASSWD)
 13. p.write('\n')
 14. p.write(PASSWD)
 15. p.close()
 16.
 

but i got this error :

[output]
[cp@server cp]$ ./password
Changing password for user cp.
Changing password for cp
(current) UNIX password: passwd: Authentication token manipulation error
[/output]

Anyone can help me how to write to pipe.. i try several method, and
always fail.

Thank's

I guess the passwd program doesn't allow changing passwords from a pipe
since it is a potential security hole.

[Cameron Laird]

In article <em**********@registered.motzarella.org>,
Felix Benner <fe**********@imail.dewrote:

>Dhika Cikul schrieb:

>Hello,

I'm new in Python, i don't know my subject is correct or wrong. I have
problem with my script. I want to change password with passwd password
in python without user submitted anything from keyboard. I get