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From: miw@mucs.UX.CS.MAN.AC.UK (Mario Wolczko)
Newsgroups: comp.windows.x
Subject: signals being ignored by xterm
Message-ID: <1256@mucs.UX.CS.MAN.AC.UK>
Date: Thu, 3-Sep-87 07:40:26 EDT
Article-I.D.: mucs.1256
Posted: Thu Sep  3 07:40:26 1987
Date-Received: Sun, 6-Sep-87 02:29:00 EDT
Reply-To: miw@mucs.UUCP (Mario Wolczko)
Organization: Computer Science, University of Manchester, UK
Lines: 29

I've just finished installing X 10.4 on a SUN-3 system (SunOS3.2), and
everything was fine, but: whenever I open an xterm window within uwm or
menuwm, either from a menu or by something like "xterm &", the INT and QUIT
signals are ignored within that window.  More specifically, I can't stop
anything with ^C or ^\.  These still work OK within the login window, and
^Z works fine everywhere, so I can do something like ^Z-k-i-l-l- -% to kill
things.

After checking the setting of the terminal, and lots of other obsure
things, the only thing I can conclude from looking at the code is that INT
and QUIT are being set to SIG_IGN when I start either xterm or the window
manager with an &, and nothing is re-enabling them.

To prove this, I added two lines to both xterm and menuwm, namely
	signal(SIGINT, SIG_DFL);
	signal(SIGQUIT, SIG_DFL);
just before each execs a program.  This seems to cure the problem.

Has anyone else encountered this?  Surely everybody who uses X doesn't put
up with this behaviour!  

Mario Wolczko

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