csh jobs/tostop bug

[utzoo!decvax!yale-com!brunix!mjb]

>From sdcarl.4253:
	given the following command line

		cmd & stty tostop & wait ; fg

	``cmd'' produces output and takes a minute
	or so to produce it, therefore the stty
	exits successfully before it.

WRONG. The man pages for "jobs" clearly states:

	If a process which is not in the process group of the terminal
	attempts to change the terminals mode, the process group of that
	process is sent a SIGTTOU signal, causing the process group to stop.

Csh fires up background processes with their own process groups, thus the
stty will not be in the process group of the terminal and will be stopped
before setting tostop. ``cmd'' is therefore never stopped.

Not afraid to read the documentation,
mike braca   {decvax,vax135}!brunix!mjb