Re: Solaris /bin/ksh still broken

[Roland Illig <rillig%NetBSD.org@localhost>]

Roland Illig wrote:
> Jonathan Perkin wrote:
>
> > * On 2006-03-14 at 14:04 GMT, Roland Illig wrote:
> >
> >
> > > http://www.netbsd.org/Documentation/pkgsrc/platforms.html, 3.2.7.4
> >
> >
> >
> > Ick, we can't seriously be recommending that as a legitimate fix?
>
>
> I think we can and should do that. The source code of /bin/ksh belongs 
> to the things that are not published as part of OpenSolaris by Sun 
> Microsystems. There must be some strong reason behind. :)
>
> The segmentation fault occurs in the function arg_build, which is called 
> by sh_exec. There does not seem to be related source code in the 
> publicly accessible web.

1. The bug does not occur when /bin/ksh is started with the -x option.

2. The bug does not occur when the

    if test -z "$show_help"; then
        ...;
    fi

part is replaced with a

    case "$show_help" in "")
        ...;
    esac

3. When I remove some parts of the large show_help block, the 
segmentation fault occurs after some commands have been invoked.

Since this behavior is hard to describe and explain correctly, I suggest 
that we discourage the use of /bin/ksh on Solaris altogether.

Roland