https://bugzilla.mindrot.org/show_bug.cgi?id=2965
Bug ID: 2965
Summary: OpenSSH for Windows hangs if there is no STDIN
Product: Portable OpenSSH
Version: 7.9p1
Hardware: Other
OS: Windows 10
Status: NEW
Severity: enhancement
Priority: P5
Component: ssh
Assignee: [email protected]
Reporter: [email protected]
The simplest repro is to run the following in a cmd shell:
> ssh user@host -- echo x < NUL:
x
GetConsoleMode on STD_INPUT_HANDLE failed with 6
... and then it hangs and is unresponsive to input. If instead you pipe
in an empty file it works fine.
This becomes a pain when you are writing a script that shells out to
ssh to run a single remote command, as you need to provide a stdin file
or it will hang. So for example, in python on Windows:
subprocess.check_output(['ssh', 'user@host', '--', 'echo', 'x'])
will hang.
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