On 7/31/20 7:27 PM, Ángel wrote:
> On 2020-07-31 at 10:13 -0400, Chet Ramey wrote:
>>
>> I'm going to have to test some more. When I tried it, all the shells
>> died.
>> (I did send the SIGHUP from another terminal.) I was using ksh93 as
>> the parent and bash-5.0.18 as the interactive bash, running on macOS.
> 
> This is probably AIX-specific in that some ioctl called by tcsetattr
> seems to cause a SIGHUP when there is no tty.
> Their behavior kinda make sense.

Maybe, but it's not documented and seems to be unique to AIX.

> Can probably be easily fixed by masking SIGHUP in the handler.

It's a little more complicated to make that happen, but that's probably
going to be the right approach (AIX-specific, of course).

Chet

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

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