Date: Mon, 21 Jun 1999 21:00:46 -0400 (EDT) From: "Brian F. Feldman" <green@unixhelp.org> To: Peter Wemm <peter@netplex.com.au> Cc: Jean-Marc Zucconi <jmz@FreeBSD.org>, hoek@FreeBSD.org, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern imgact_gzip.c Message-ID: <Pine.BSF.4.10.9906212059540.55443-100000@janus.syracuse.net> In-Reply-To: <19990621231649.336E375@overcee.netplex.com.au>
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On Tue, 22 Jun 1999, Peter Wemm wrote:
> Jean-Marc Zucconi wrote:
> > >>>>> Tim Vanderhoek writes:
> >
> > > hoek 1999/06/21 09:23:15 PDT
> > > Modified files:
> > > sys/kern imgact_gzip.c
> > > Log:
> > > Correctly return ENOEXEC for really short zipped files. The way this is
> > > done is less-than cute, but this whole file is suffering from some amoun
> t
> > > of bitrot. Execution of zipped files should probably be implemented in
> a
> > > manner similar to that of #!/interpreted files.
> >
> > Do this mean that it should be possible to run gzip'ed executables??? I
> > though it was not possible with ELF binaries. Even after this commit I
> > am unable to do it:
> > $ cp /bin/ls .
> > $ gzip ls
> > $ ./ls.gz
> > bash: ./ls.gz: cannot execute binary file
> > Output=32 Inflate_error=1 igz.error=8 error2=0 where=180
>
> No, imgact_gzip has it's own a.out executable decoder hardwired into it and
> this can't be easily changed to support ELF without a LOT of work. I half
> wonder if it might be better to gzip -d the executable stream into some
> sort of anon backed vnode and then pass that back into the exec system. That
> way it would work for any supported format etc.
Or just use gzexe.
>
> Cheers,
> -Peter
>
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