process group question

[Martin Kirk]

>From article <W566W at masalla.fulcrum.bt.co.uk>, by tjo at its.bt.co.uk (Tim Oldham):
> 
> Note that the ioctl to (dis)associate the processes with the terminal
> is TIOCSPGRP - you do the (dis)association on a process group, not
> on a process.
> 
> 	Tim.

To include from termio.4 under SunOS4.0.1:

     The controlling terminal is inherited  by  a  child  process
     during a fork(2).  A process relinquishes its control termi-
     nal when it changes its process group using  setpgrp(2V)  or
     when  it issues a TIOCNOTTY ioctl(2) call on a file descrip-
     tor created by opening the file /dev/tty.

This is a hybrid of the BSD and System V functionality.


MArtin
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