Finding the terminal your script is running in - Programming On Unix
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This problem is captivating.
The more I think about it the more it drives me close to your approach: Recursively checking if the parent writes to the pseudo terminal master. Maybe you can swap the readlink part with an `lsof /dev/ptmx | grep " $pid "`, instead of going through every processes opened file descriptors you go through the file descriptors of ptmx and check if it's there. Or then you could also do `lsof -p $pid | grep '/dev/ptmx'` Then continue the recursion. I'm still sceptical of the edge cases, namely the sshd, login, etc.. There ought to be more than that. sshd holds a file descriptor to /dev/ptmx, it's the endpoint in that case. Let's say you have something else that is the "endpoint" and isn't a terminal but with our way it'll be listed as a terminal. We need other features specific to a terminal. If we remove the console, maybe we could presuppose the terminal is running in a graphical session. But then again, maybe ssh could be thought of as a terminal. I tried with a terminal multiplexer, they lead back to the right terminal, so no issues on that part. |
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Messages In This Thread |
Finding the terminal your script is running in - by movq - 02-07-2016, 02:23 PM
RE: Finding the terminal your script is running in - by venam - 03-07-2016, 01:56 AM
RE: Finding the terminal your script is running in - by movq - 03-07-2016, 12:41 PM
RE: Finding the terminal your script is running in - by venam - 03-07-2016, 01:12 PM
RE: Finding the terminal your script is running in - by venam - 12-08-2020, 08:11 AM
RE: Finding the terminal your script is running in - by z3bra - 12-08-2020, 08:43 AM
RE: Finding the terminal your script is running in - by movq - 13-08-2020, 06:45 AM
RE: Finding the terminal your script is running in - by venam - 05-06-2021, 05:26 AM
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