From owner-cvs-all Mon Jun 21 16:16:58 1999 Delivered-To: cvs-all@freebsd.org Received: from overcee.netplex.com.au (overcee.netplex.com.au [202.12.86.7]) by hub.freebsd.org (Postfix) with ESMTP id 3646114C0A; Mon, 21 Jun 1999 16:16:50 -0700 (PDT) (envelope-from peter@netplex.com.au) Received: from netplex.com.au (localhost [127.0.0.1]) by overcee.netplex.com.au (Postfix) with ESMTP id 336E375; Tue, 22 Jun 1999 07:16:49 +0800 (WST) (envelope-from peter@netplex.com.au) X-Mailer: exmh version 2.0.2 2/24/98 To: Jean-Marc Zucconi Cc: hoek@FreeBSD.ORG, cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG Subject: Re: cvs commit: src/sys/kern imgact_gzip.c In-reply-to: Your message of "Mon, 21 Jun 1999 23:40:01 +0200." <199906212140.XAA00694@qix.jmz.org> Date: Tue, 22 Jun 1999 07:16:46 +0800 From: Peter Wemm Message-Id: <19990621231649.336E375@overcee.netplex.com.au> Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk 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. Cheers, -Peter To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message