paramiko 1.16 error in _winapi.py

[hobbsd]

Here's the end of the traceback:

...\paramiko\_winapi.py", line 162, in write
ctypes.windll.kernel32.RtlMoveMemory(dest, msg, length)
ValueError: Procedure probably called with too many arguments (4 bytes in excess)

Using Python 2.7 on Windows 7.

[bitprophet]

Paging Dr @jaraco, Dr @jaraco to aisle 613. Hoping I just made some stupid merge error in that module or something?

[jaraco]

The error message strikes me as something I've seen before, but I don't recall exactly what the issue is. That call in particular is tested in test_mmap and passes on Python 2.7 on Windows 10. I'll keep looking.

[jaraco]

I just tested with Paramiko 1.16.0 and I was able to establish a connection using Python 2.7.10 64-bit and Pageant 0.65 64-bit on Windows 10 64-bit.

@hobbsd Can you tell me more about your environment - what versions (and bit size) of Windows, Putty, and Python are you using?

[hobbsd]

I'm using Python 2.7.9 32-bit on Windows 7 64-bit with Putty 0.65.

[jaraco]

The error seems to be unique to 32-bit Python. I'll devise a fix. In the meantime, I suspect you'll have success with 64-bit Python.

[dkmstr]

Changing the MemoryMap class, the read & write methods as you refer in the reference, it works fine!!
I had the same issue on a machine, an after changing
length = ctypes.wintypes.SIZE(n)
by
length = ctypes.c_size_t(n)
in both read & write method, now paramiko works perfectly :-)

Thanks for the references and your good work!!

[rockwelln]

I had the same issue with Python 3.4 32bits on Windows7.
I applied the same fix on "length = ctypes.wintypes.SIZE(n)" in read and right method.
It works great now. Thank you @dkmstr

[StdioA]

Had the same issue with Python 2.7 32bits on Windows 10 Build 10576.
Maybe the api changes after the Windows upgrades from 10240 to 10576, so that the function RtlMoveMemory failed.
Here's the traceback:

File "C:\Python27\lib\site-packages\paramiko_winapi.py", line 162, in write
ctypes.windll.kernel32.RtlMoveMemory(dest, msg, length)
ValueError: Procedure probably called with too many arguments (4 bytes in excess)

[bitprophet]

Not sure why I didn't close this to merge w/ the PR, doing that now. Please follow #619. It's part of the next bugfix milestone!

[jameshume]

Phew... that fixed it for me running on windows XP. A big thank you to you!!

[DrayChou]

I'm using Python 2.7.11 32-bit on Windows 7 64-bit.
and I applied the same fix on "length = ctypes.wintypes.SIZE(n)" in read and right method.
It works great now. Thank you @dkmstr

Exception in thread Thread-1:
Traceback (most recent call last):
File "C:\Python27\lib\threading.py", line 801, in *bootstrap_inner
self.run()
File "C:\Python27\lib\threading.py", line 754, in run
self.__target(_self.__args, _self.__kwargs)
File "main.py", line 15, in ssh2
ssh.connect(ip,22,username,passwd,timeout=5)
File "C:\Python27\lib\site-packages\paramiko\client.py", line 367, in connect
look_for_keys, gss_auth, gss_kex, gss_deleg_creds, gss_host)
File "C:\Python27\lib\site-packages\paramiko\client.py", line 517, in _auth
self._agent = Agent()
File "C:\Python27\lib\site-packages\paramiko\agent.py", line 363, in __init
self._connect(conn)
File "C:\Python27\lib\site-packages\paramiko\agent.py", line 66, in _connect
ptype, result = self._send_message(cSSH2_AGENTC_REQUEST_IDENTITIES)
File "C:\Python27\lib\site-packages\paramiko\agent.py", line 83, in _send_message
self._conn.send(struct.pack('>I', len(msg)) + msg)
File "C:\Python27\lib\site-packages\paramiko\win_pageant.py", line 123, in send
self._response = _query_pageant(data)
File "C:\Python27\lib\site-packages\paramiko\win_pageant.py", line 92, in _query_pageant
pymap.write(msg)
File "C:\Python27\lib\site-packages\paramiko_winapi.py", line 162, in write
ctypes.windll.kernel32.RtlMoveMemory(dest, msg, length)
ValueError: Procedure probably called with too many arguments (4 bytes in excess)

[zapu]

Same issue, the fix mentioned helped.

I'm using fabric on Windows 7, with Python 2.7. My packages are installed with pip, apart from pycrypto, which I got from http://www.voidspace.org.uk/python/modules.shtml#pycrypto Is the version 1.16.0 (with the bug described in this issue) the last version for this Python or am I missing something? Thanks.

[dmikov]

Any eta on fix? I cannot go and change ctype ine on my machine. Our clients download pip at there premises so I cannot fix it on hundreds of servers.

[Dagur]

@zapu I have the same setup. Reverting back to paramiko 1.15.4 fixed the error for me

[ArmanFazylov]

@Dagur tnx for help! Fixed for me too

[bitprophet]

#619 is merged, expect release of 1.16.1 soon.