Read user input from terminal when a pipe is used

[Alexander Schulz <aiqpost@...>]

Hey,

i want to create a script with lua that reads from a pipe and allows to read input from the user terminal.

Example: history -n | tail -n 10 | my_script

In this case is io.stdin a file descriptor to the pipe.
How can i get now in lua a file descriptor on the current terminal?

Thanks,
Alexander