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Re: Builtin echo interrupted by WINCH


From: Chet Ramey
Subject: Re: Builtin echo interrupted by WINCH
Date: Sun, 24 Sep 2017 13:48:30 -0400
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:52.0) Gecko/20100101 Thunderbird/52.3.0

On 9/23/17 4:55 PM, Egmont Koblinger wrote:

> Is there anything bash could do to prevent incorrect behavior of its
> built-in commands when a SIGWINCH is encountered? And of course I
> don't mean the "echo" command only.

You can try, as the bash devel branch does, to install the SIGWINCH
signal handler with the SA_RESTART flag. The readline code has always
installed its SIGWINCH handler with SA_RESTART, but when it restores
the bash SIGWINCH handler, it uses the flags bash uses, and until last
December those didn't include SA_RESTART.

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/



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