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From: db@sunbim.be (Danny Backx)
Newsgroups: comp.windows.x
Subject: XView problem fix [was: OpenWindows shelltool/cmdtool under X-terminal]
Message-ID: <9010241320.AA00818@sunbim.be>
Date: 24 Oct 90 12:23:09 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 46

There have been several messages about the shelltool/cmdtool problem on
X-terminals. There are 2 solutions.

1. Use /usr/etc/setsid.
	This involves making a little script that replaces your executable,
	and actually calls it. E.g. :
		#!/bin/csh -f
		/usr/etc/setsid -b /home/openwin/bin/xview/cmdtool $*
	[ this is actually Sun's solution - proposed for others than this also]

2. Fix the bug.

	The bug is not in cmdtool or shelltool, rather in XView. It can be
	found in ${XVIEWSRC}/lib/libxvol/ttysw/tty_init.c . I changed the
	stuff around line 580 to look like this :

	gotpty:
	    line[strlen("/dev/")] = 't';
	#ifdef POSIX
	    (void) setsid();    /* For SunOS 4.1 */
	#else
	    tt = open("/dev/tty", O_RDWR);
	    if (tt > 0) {
	        (void) ioctl(tt, TIOCNOTTY, 0);
	        (void) close(tt);
	    }
	#endif
	    tty = open(line, O_RDWR);

	You would have to compile with -DPOSIX in order to get this to work.

Note: read SunOS 4.1 Release Manual (pp. 52-54).

	Danny Backx
	BIM Networks System Engineer

E-Mail: db@sunbim.be    (or uunet!mcsun!ub4b!sunbim!db)

Telephone: +32(2)759.59.25	Fax : +32(2)759.47.95

Postal Mail :
	Danny Backx
	BIM
	Kwikstraat 4
	3078 Everberg
	Belgium