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From: guy@sun.uucp (Guy Harris)
Newsgroups: net.emacs
Subject: Re: GNU Emacs news
Message-ID: <2121@sun.uucp>
Date: Fri, 12-Apr-85 23:24:40 EST
Article-I.D.: sun.2121
Posted: Fri Apr 12 23:24:40 1985
Date-Received: Wed, 17-Apr-85 00:30:59 EST
References: <6180@ucbvax.ARPA>
Distribution: net
Organization: Sun Microsystems, Inc.
Lines: 29

> * Emacs now alters the output-start and output-stop characters
>  to prevent C-s and C-q from being considered as flow control
>  by cretinous rlogin software in 4.2.

Actually, the problem is in the pty driver, not in "rlogin"; the fix
has been posted a few times, but here it is again:

sys/tty_pty.c: (your line numbers may vary)

438,439c492,493
< 	{ int stop = (tp->t_stopc == ('s'&037) &&
< 		      tp->t_startc == ('q'&037));
---
> 	{ int stop = ((tp->t_flags & RAW) == 0 &&
> 	    tp->t_stopc == ('s'&037) && tp->t_startc == ('q'&037));
442c496
< 			pti->pt_send &= TIOCPKT_NOSTOP;
---
> 			pti->pt_send &= ~TIOCPKT_NOSTOP;

This sends a TIOCPKT_NOSTOP packet if RAW mode is turned on, as well as if
the start or stop characters are changed.

It works; I'm in EMACS (Gosling's) over an "rlogin" connection, and ^S
does start a search.  (Of course, if you have a smooth-scrolling VT100,
you lose big if it ever scrolls...)

	Guy Harris
	sun!guy