descriptors against -1 (as appropriate).
* add actual checks which to detect stuff that would trigger_DIAGASSERT(),
and attempt to return a sane error condition.
* knf some code
* remove some `register' decls.
the first two items result in the addition of code similar to the
following in various functions:
_DIAGASSERT(path != NULL)
#ifdef _DIAGNOSTIC
if (path == NULL) {
errno = EFAULT;
return (-1);
}
#endif
that flushing wasn't done right when input buffers were refilled, due
to a check like
if (foo == _A | _B) which, since _A and _B are both != 0, always
evaluates to true.
Found by proven@cygnus.com
lukem