1

I need to check from a running C program whether stdout was deleted.

By "deleted" I mean a situation when in /proc/pid/fd is written "deleted":

ll /proc/91495/fd total 0 dr-x------ 2 ibse ibse 0 січ 31 00:49 ./ dr-xr-xr-x 9 ibse ibse 0 січ 31 00:49 ../ lrwx------ 1 ibse ibse 64 січ 31 00:49 0 -> '/dev/pts/5 (deleted)' lrwx------ 1 ibse ibse 64 січ 31 00:50 1 -> '/dev/pts/5 (deleted)'

This can happen, for example, when the program's control terminal has been killed/closed.

Is there a way to check this without writing to stdout and checking the returned error?

I assumed that using fstat(STDOUT_FILENO, &buf) in this case would return an error, but this is not the case.

Improve this question
1

0

Reset to default

You must log in to answer this question.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.