On 8/21/15 10:41 AM, Timo Buhrmester wrote:
>>> I can't get /bin/sh to trap the SIGHUP signal on amd64 NetBSD
>>> 6.1_STABLE. Does anyone know why?
> On a first glance, this seems to be bourne-shell specific. At least ksh and
> bash both behave correctly.
>
> Looking at the source, this part is likely what causes SIGINT to work:
> (from src/bin/sh/jobs.c in the `dowait` function, note that this is -current
> source)
> | do {
> | pid = waitproc(flags & WBLOCK, job, &status);
> | TRACE(("wait returns pid %d, status %d\n", pid, status));
> | } while (pid == -1 && errno == EINTR && gotsig[SIGINT - 1] == 0);
>
> Note the special case granting SIGINT to exit the loop when waitproc (i.e.
> waitpid(2)) comes back with EINTR, while other signals are effectively
> ignored.
Hello, Timo.
Thank you for your analysis. I think you're right; that explains it!
Regards,
Lewis
