Unbuffered subprocess stdout on windows

Question

Is there an easy way to read output from subprocess unbuffered? I'm trying to call a C program from Java, but apparently it's stdout block-buffered when connected to pipe and line-buffered only when connected to console. I cannot modify C program.

Maybe there is a way to fool the program into thinking it is connected to console? Bonus points for a solution that works on linux as well.

Answer 1

It's not a great solution, but the runtime library probably doesn't buffer serial ports so if you're desperate enough you could use a null-modem emulator such as com0com or a derivative thereof.