Stty raw mode Post: 303033875

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Top Forums UNIX for Beginners Questions & Answers Stty raw mode Post 303033875 by ignatius on Friday 12th of April 2019 07:05:46 PM

04-12-2019

Registered User

Stty raw mode

Hi,

I'm writing a BBS terminal program. And have hit a major roadblock. My terminal works fine for every BBS out there, except Mystic BBSes. I've narrowed down the problem to the usage of the stty() command. The problem is so: I cannot use the arrow keys to select certain things on Mystic BBSes. It doesn't seem to be sending the ^[[A, ^[[B, etc ANSI codes to the screen. Here's the strange part, If I press the arrow key multiple times, it will do what it's supposed to do, and traverse the menus. Now, back to stty(), I wrote another program, this time, in Python, and had this exact problem with it. I solved it by putting a

Code:

os.system("stty raw");

before the command to connect to the BBS. Now back to the problem, I have no idea where I should put this system() call. Trial and error hasn't helped much.

Any and all input is greatly appreciated. And a big THANK YOU to everyone who has helped me get this far. You know who you are.

ignatius

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LEARN ABOUT NETBSD

gtty

STTY(3) 						   BSD Library Functions Manual 						   STTY(3)

NAME

     stty, gtty -- set and get terminal state (defunct)

LIBRARY

     Compatibility Library (libcompat, -lcompat)

SYNOPSIS

     #include <sgtty.h>

     stty(int fd, struct sgttyb *buf);

     gtty(int fd, struct sgttyb *buf);

DESCRIPTION

     These interfaces are obsoleted by ioctl(2).  They are available from the compatibility library, libcompat.

     The stty() function sets the state of the terminal associated with fd.  The gtty() function retrieves the state of the terminal associated
     with fd.  To set the state of a terminal the call must have write permission.

     The stty() call is actually 'ioctl(fd, TIOCSETP, buf)', while the gtty() call is 'ioctl(fd, TIOCGETP, buf)'.  See ioctl(2) and tty(4) for an
     explanation.

DIAGNOSTICS

     If the call is successful 0 is returned, otherwise -1 is returned and the global variable errno contains the reason for the failure.

SEE ALSO

     ioctl(2), tty(4)

HISTORY

     The stty() and gtty() functions appeared in 4.2BSD.

BSD
								   June 4, 1993 							       BSD