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Path: utzoo!watmath!clyde!cbosgd!ihnp4!qantel!lll-crg!gymble!umcp-cs!seismo!elsie!ado
From: ado@elsie.UUCP (Arthur David Olson)
Newsgroups: net.bugs.4bsd
Subject: 4.?bsd "more" has bum stty call, leaves vt100s in ul mode (with fixes)
Message-ID: <5301@elsie.UUCP>
Date: Sat, 30-Nov-85 19:26:16 EST
Article-I.D.: elsie.5301
Posted: Sat Nov 30 19:26:16 1985
Date-Received: Mon, 2-Dec-85 03:15:39 EST
Organization: NIH-LEC, Bethesda, MD
Lines: 50
Keywords: bsd more

Index:		cmd/more.c Fix

Description:
	The "more" command calls "stty" even when output is redirected.
	It also leaves terminals such as VT100s in "underscore mode"
	if the last printing character output is underscored.

Repeat-By:
	To reproduce the first bug, present these commands to "csh":
		stty tostop
		more /etc/passwd > /dev/null &
	and note the
		+ Stopped (tty output)
	message.

	To reproduce the second bug, hop on a VT100, present these commands
	to "csh":
		awk 'BEGIN { printf "a%c_\n", 8 ; exit }' | more
		date
	and note that all input and output is being underlined.

Fix:
	As usual, the trade secret status of the code involved precludes a
	clearer posting.  The first conditionally compiled section of code
	deals with the first bug; the second with the second.  These changes
	are for the 4.1bsd version of the program.

	.
	.
	.
	reset_tty ()
	{
	#ifndef OLDVERSION /* Added November 30, 1985 */
		if (no_tty)
			return;
	#endif /* !OLDVERSION */
	#ifndef OLDVERSION /* Added March 8, 1982 */
		tputs(ULexit,1,putch);
		tputs(Sexit,1,putch);
	#endif /* !OLDVERSION */
	.
	.
	.
--
Bugs is a Warner Brothers trademark.
More is some tobacco company's trademark.
VT100 is a Digital Equipment Corporation trademark.
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