BUG: CTRL-D in an SSM session exits the session abruptly

[AndrewFarley]

I don't know if this is a feature or a bug... but I regularly use the joe text editor and CTRL-D is one of the standard shortcuts which when used in an SSM SSH session it instantly disconnects with an error...

Cannot perform start session: read /dev/stdin: resource temporarily unavailable

On a fresh SSH connection, when I CTRL-D it exits...

Starting session with SessionId: username-0ed94becce0968820
$    <-  HERE I HIT CTRL-D

Exiting session with sessionId: username-0ed94becce0968820.

I assume/hope this is not a feature or some internal SSM hook to disconnect or something, but incase it is, is there a way to rebind it perhaps to another keystroke? I assume I'm not the only person to hit this issue, as more people transition off of using SSH and onto SSM, imho having an fully-compatible ssh-like tunnel is critical. And having special key combinations that are "caught" by the ssm engine feels like a potential incompatibility with software run in the remote console that may use this hook.

[justinmk3]

Does this happen when running joe in a local terminal session? Typically, a text editor will set the terminal to raw mode , so that it can intercept standard control codes like ctrl-d. But it seems like that isn't happening here.

https://en.wikipedia.org/wiki/End-of-Transmission_character#Meaning_in_Unix

In any case this is not specific to SSM, which just sets up the layer over which SSH connects.

[AndrewFarley]

@justinmk3 Great point... I just checked, and when in an SSH session with nothing open, CTRL-D does exit the session so I assume that is proper functionality on SSM. So, perhaps this bug is not related to SSM.

Incase anyone lands here though, when in an joe editor using os-x iTerm CTRL-D will exit the SSM session. And on both iTerm and on Terminal while in a joe session, CTRL-Y will randomly/selectively exit the entire session which it should never do. There may be adjustments that can be made in iTerm and/or Terminal and/or my key bindings that could fix it. If you don't believe this is an SSM issue, please close this issue however.

[justinmk3]

The root cause of the joe + CTRL-D behavior is the same as #29 so I suggest we close this , and rename #29 to something like SSM claims TERM=xterm-256color but behaves like TERM=ansi.

Starting session with SessionId: username-0ed94becce0968820
$    <-  HERE I HIT CTRL-D

Exiting session with sessionId: username

That at least is a standard behavior of shells. But the joe behavior is still strange.

[AndrewFarley]

Agreed.