> Again, it sounds like you're
> not closing all the references to one end of the pipe.
> If multiple programs have references to a pipe end,
> they *all* need to close them.  Make sure that the
> proc running tlsClient doesn't have a reference too.

Just checking: I assume by 'references' you mean
file descriptors in the process' fd table?

ehm... I just realized:
I create the procs with proccreate,
so all procs share the same references,
and when I close them in the main proc,
they go away in the other ones as well,
or so it seems, at least according to
cat /proc/*/fd.
nevertheless, without the zero-write
before one of the closes they just keep
hanging in the read, even when their fd
table no longer shows the pipe file
descriptors in any of the fd tables.

If I don't share the fd table,
and just give each of the sub processes
their own end of the pipe, I'll never be
able to close those from within those
processes, because they are both locked
up in a read (essentially waiting for each other).

I have attached a silly program.

Axel.