Bug#344269: etch release policy: scripts "must" set "appropriate" #! line?

[Frank Küster <frank@kuesterei.ch>]

Russ Allbery <rra@debian.org> wrote:

> Frank Küster <frank@kuesterei.ch> writes:
>
>> Dear release team,
>
>> we have not heard from you on this.  Could you please clarify your
>> policy decision?  This was the central question:
>
>> Release Managers, do you think that (upstream-provided) scripts with a
>> Perl magic header like
>
>> ,----
>> | eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}' && eval 'exec perl -S $0 $argv:q'
>> |   if 0;
>> `----
>
>> are inacceptable?  Fullquote follows,
>
> I thought Steve followed up and said that yes, they're unacceptable,

I didn't find any answer, neither in may mailbox, on debian-release, nor
in the bug log.

> because that script magic relies on the script being run by a shell
> (something I hadn't realized until he pointed it out).  If you try to run
> a binary that starts with the above and no #! line via, say, execv inside
> a C program, it will fail.  It only works from the command line because
> the shell falls back on trying to interpret binaries with no valid magic
> as shell scripts.

That sounds sensible.

Regards, Frank
-- 
Frank Küster
Single Molecule Spectroscopy, Protein Folding @ Inst. f. Biochemie, Univ. Zürich
Debian Developer (teTeX)