Hi all.

I'm having a little trouble solving a specific problem in C. I want to write a
filter which reads data from stdin. After reading the user should be able to
interact with the program via stdin. This means I have to reopen stdin but I
don't know how to do this. I tried to solve this using dup() and dup2() but
without success.

You can have a look at my first experiment here:


I guess the code and the contained comments show what I'm trying to achieve.
Although this is off-topic on this list I hope someone with more knowledge in C
may steer me into the right direction.

Sorry for the noise and thanks for reading.



Tobias Rehbein

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