I just want to leave a note that the example with cat TWO.txt does not work on a recent Debian sid.
The reason is, that cat now uses the openat() syscall instead of open().
Anyway, great code project! Thanks @alfonsosanchezbeato!

Hello, your work is quite nice. It is very helpful to me.

I want to identify the absolute path of the file to redirect to the file that I expect to open, but now I meet a problem, how to get the absolute path of the file when intercepting the open system call. I tried to use PEEKUSER to get the file name parameter of the open system call, but what I got was a relative path. If you have any thoughts, I will be grateful for you to tell me.

Thanks.

It would be nice to add a license to this example, so people can copy & paste it with assurance. Maybe add an Apache2 or MIT license header?

thanks!