Re: [9front] patch ssh.c extract window resolution

[ori@eigenstate.org]

Quoth kvik@a-b.xyz:
> 
> It seems that we could avoid this code (also in mc, etc.) if rio
> provided these metrics in a per-window file.
> 

I don't think that rio should be providing metrics that make no
sense if you use a variable width font. Not sure how I feel
about making ssh provide them either, though.

Since ssh uses getenv and interrupts, perhaps this can go into
a program outside of ssh that runs in the same env?

	setsize ssh yourhost

where sizehack() is essentially:

	void
	threadmain(int arc, char **argv)
	{
		pid = spawn(argv+1, argc-1);
		while(1){
			recv(mc->resizec, nil);
			sz = windowsize();
			setenv(...);
			write("/proc/%d/note", pid, "interrupt");
	}