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From: bbanerje@sjuvax.UUCP (B. Banerjee)
Newsgroups: net.lang.c
Subject: Re: 1-char input in C
Message-ID: <219@sjuvax.UUCP>
Date: Sat, 24-Dec-83 20:33:07 EST
Article-I.D.: sjuvax.219
Posted: Sat Dec 24 20:33:07 1983
Date-Received: Mon, 26-Dec-83 01:07:17 EST
References: <463@ihuxn.UUCP> <3755@genrad.UUCP>
Organization: Saint Josephs U. Philadelphia, PA
Lines: 24

>>(and easiest to understand) is to use the system() call to change the
>>tty mode as follows:

>>#include <stdio.h>
>>main() {
>>    system("stty raw");		/* dont buffer data */
>>    getchar();
>>    system("stty -raw");	/* restore normal buffering */
>>}
>>
>>The other option is to use ioctl() (or gtty & stty on systems that have
>>it) to set the tty modes properly.  The problem with this is that BELL,
>>BSD and V7 systems are all different in the exact format of these
>>ioctl()'s

Nice solution.  I was about to suggest mucking around with ioctl().
However, if I remember correctly from K & R, getchar() and putchar()
buffer their input/output respectively.  It might be best to use
read() instead. 
-- 


				Binayak Banerjee
		{allegra | astrovax | bpa | burdvax}!sjuvax!bbanerje