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From: wls@astrovax.UUCP
Newsgroups: net.news.b
Subject: Another ^Z bug in r and f commands of vnews (4.1 BSD)
Message-ID: <78@astrovax.UUCP>
Date: Mon, 31-Oct-83 21:01:47 EDT
Article-I.D.: astrovax.78
Posted: Mon Oct 31 21:01:47 1983
Date-Received: Tue, 25-Oct-83 06:57:46 EDT
Organization: Princeton Univ. Astrophysics
Lines: 15

How to produce the bug:
 Enter vnews, then send a followup or a reply using the `r' or `f' commands.
 Then exit the editor.  One is now back in vnews. If one then stops vnews with
 ^Z, the signal will also stop the background processes (mailer, uucp, etc.)
 that the mail or inews programs had invoked.

The way I fixed it was to modify the "reply"  and "follow" shell scripts
to add signals 18, 21, and 22 to those ignored during the invocation of inews
or mail.  Unfortunately I had to modify the Bourne shell to let it recognize
the existence the higher numbered signals.  The change to /bin/sh is trivial
(and, I believe, should have been done anyway). Change MAXTRAP in defs.h from
17 to 33.
-- 
Bill Sebok	Princeton Univ. Astrophysics
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