BSD vs. SVR4 typehead flush after tty mode change

[Doug Gwyn]

In article <4187 at auspex.auspex.com> guy at auspex.auspex.com (Guy Harris) writes:
>>The fix:
>OK, now *after* you've applied the fix, try the following:
>	Fire up the (S5R4) C shell.

It sems to me that a bug was introduced in the kernel solely in order
to avoid fixing the C shell, which is clearly screwed up in its input
handling.  In interactive command-line editing mode, a shell should
read() only 1 character at a time.