an idea that came up a while ago was to add stuff to all libc functions
to sanity check arguments (e.g, fgets(char *buf, int n, FILE *fp) having
buf != NULL && fp != NULL, etc)

i think this is a good idea, and unless it breaks standards, we should
do it. of course, people will complain about the performance hit and
the method of highlighting failure, so i suggest that the following
be done:
	* all of this code would be #ifdef LIBC_DIAGNOSTIC
	* have diagnostics one of:
		- warn()
		- syslog "function __file__ __line__ ..." (my preferred ;)
		- nothing
	* have the failure mode one of:
		- return from function a failure code, but continue on
		- exit(1)
		- dump core using abort() (my preferred ;)

obviously, the diagnostics & failure mode has to be decided apon.
maybe that can be conditionally compiled in too based on the setting
of LIBC_DIAGNOSTIC?

if the general idea is that this is ok, i'll start on this in my
infinite spare time.

thoughts/comments/objections?

luke.