[BusyBox] Re: ifconfig: Clean up. [PATCH]

[Paul Fox]

 > >  > If CLEAN_UP is undefined, it shouldn't affect the binary size at all.
 > >  > If CLEAN_UP is defined, it cleans up the resources the applet has
 > >  > allocated, namely file descriptors in this case.
 > >
 > > and why do we care about closing file descriptors?
 > > perhaps i should just ask the bigger question:  when would one use
 > > CONFIG_FEATURE_CLEAN_UP?  why?  is there a busybox configuration where
 > > exit-time leaks are an issue?
 > 
 > This makes it possible to use utilities that detect resource leaks by
 > checking that at program exit all resources have been deallocated.

okay, so if that's when the CLEAN_UP code would be used, then
worrying about the size that it adds is a moot point, since one
probably wouldn't distribute that way anyway.

 > 
 > I'll mention that in my case -- even though as far as I know no one
 > else is using this -- I'm using a forkless busybox that imitates
 > fork/exit using setjmp/longjmp. The upside is that fork is never

except for you, of course.  :-)

paul
=---------------------
 paul fox, pgf at brightstareng.com