Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!chinacat!chip
From: chip@chinacat.Unicom.COM (Chip Rosenthal)
Newsgroups: comp.unix.xenix.sco
Subject: Re: Faking a Control Q from a device
Keywords: XON, Cnt-Q
Message-ID: <1561@chinacat.Unicom.COM>
Date: 7 Sep 90 18:59:57 GMT
References: <1120@xroads.UUCP>
Organization: Unicom Systems Development, Austin, TX
Lines: 37

In article <1120@xroads.UUCP> willis@xroads.UUCP (Raymond Willis) writes:
>Is there a way to make the system think the plotter has sent a Control Q?

If you compile the following as "xon", you could then do, for
example, "xon /dev/tty2a" to unstick tty2a.

--- cut here -----------------------------------------------------------------
#include <stdio.h>
#include <fcntl.h>
#include <termio.h>

main(argc,argv)
int argc;
char *argv[];
{
    int fd;
    if ( argc != 2 ) {
	fprintf(stderr,"usage: %s device\n",argv[0]);
	exit(1);
    }
    if ( (fd=open(argv[1],O_RDONLY)) < 0 ) {
	perror(argv[1]);
	exit(1);
    }
    if ( ioctl(fd,TCXONC,1) != 0 ) {
	perror(argv[1]);
	exit(1);
    }
    close(fd);
    exit(0);
}
--- cut here -----------------------------------------------------------------

-- 
Chip Rosenthal  <chip@chinacat.Unicom.COM>
Unicom Systems Development, 512-482-8260 
Our motto is:  We never say, "But it works with DOS."