ReadKey like Function in C

[Dave Fenske]

In article <207600029 at s.cs.uiuc.edu> mccaugh at s.cs.uiuc.edu writes:
>
> Wait a minute -- am I missing something here? Isn't conventional (Kernighan-
> Ritchie) C supoosed to be capable of system-calls to the operating-system, 
> say, to switch I/O-mode from cooked to raw, thereby obviating the <CR> on
> char-input, then switching back when done?

Absolutely!  You need only do the following:

1.  do an "ioctl (n, TCGETA, &term)
2.  modify some parameters, such as
    term.c_lflag &= ~(ICANON | ECHO)  or whatever else you need
3.  term.c_cc [VTIME] = some_value  <- for timeout, if desired
4.  term.c_cc [VMIN] = 1  <- satisfy read with 1 character
5.  ioctl (m, TCSETA, &term)  to reset the terminal
6.  you can now do a read (n, &work, 10)  

You might need/want to reset the terminal, but these are the basic steps.