[PATCH] mesg.c: make tty variable use only dynamic memory

[Harald Becker]

 Hi!

> Excuse me for the dumb question but, isn't expected the system itself
> to free up memory on exit?

Yes, on most Unix like systems. The functionality to free all allocated
memory (and other resources) explicitly is for special purposes.

If an applet is called as no-fork that memory deallocation is essential
to avoid memory leakage. In addition on some no-MMU architectures such
deallocation is required or does help the system in memory organization
and reclaiming strategies (rumors, never had one of those for my own).
Beside this is explicit resource deallocation just good programming
practice and required by code analyzing tools.

--
Harald