James Carlson <carls...@workingcode.com> wrote:
> Yes, it's implemented. The streamio.c strioctl() implementation is the
> real one. The gentty.c module is a red herring. It's part of the
> obscure "sy" driver ... which has no man page and dates back to the USL
> implementation. I have no idea what it does. :-/
>
> For what it's worth, I would use fork()/setsid()/fork() to disclaim a
> controlling tty. It's simple and always works. (Though, notably, it
> does not get you outside of an existing contract, which is sometimes an
> important distinction for programs that operate as daemons.)
The problem with sedsid() and a double fork() is that you cannot wait for the
program anymore. This was one reason for introducing the contract filesystem.
A working TIOCNOTTY would allow to deassociate the controlling tty without the
need for something like ctfs to wait for the "child".
Jörg
--
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joerg.schill...@fokus.fraunhofer.de (work) Blog:
http://schily.blogspot.com/
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