Upcoming bwrap helper implementation requires two sets of pipes to be managed, fd will also no longer be constant.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
The stub child process simulates reading from the argument fd and copies the entire payload unmodified to stdout. If status pipe is enabled it will simulate sync fd behaviour as well.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
The previous code was poorly documented and made little sense in some parts. This is a generalised and cleaned up implementation in the helper package making use of the Args interface.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
This method of passing arguments is used in bubblewrap as well as other tools, this commit separates the argument builder/writer to the helper package and generalise it as an interface.
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>