From owner-freebsd-bugs@FreeBSD.ORG Fri Aug 6 07:20:04 2010 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 018ED1065670 for ; Fri, 6 Aug 2010 07:20:04 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id C95FD8FC12 for ; Fri, 6 Aug 2010 07:20:03 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id o767K3gM068651 for ; Fri, 6 Aug 2010 07:20:03 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id o767K3qI068650; Fri, 6 Aug 2010 07:20:03 GMT (envelope-from gnats) Date: Fri, 6 Aug 2010 07:20:03 GMT Message-Id: <201008060720.o767K3qI068650@freefall.freebsd.org> To: freebsd-bugs@FreeBSD.org From: Oliver Fromme Cc: Subject: Re: misc/149335: shell script runs on Linux but not on freebsd X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Oliver Fromme List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 06 Aug 2010 07:20:04 -0000 The following reply was made to PR misc/149335; it has been noted by GNATS. From: Oliver Fromme To: eb30750@gmail.com, freebsd-bugs@FreeBSD.ORG, bug-followup@FreeBSD.ORG Cc: Subject: Re: misc/149335: shell script runs on Linux but not on freebsd Date: Fri, 6 Aug 2010 09:12:40 +0200 (CEST) Paul Lambert wrote: > > Number: 149335 > > Category: misc > > Synopsis: shell script runs on Linux but not on freebsd > [...] > > Environment: > FreeBSD BRSINC-VM02.local 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Mon Jul 19 02:36:49 UTC 2010 root@mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 > > Description: > The script fails on these two lines so far; "stat" and "od" > > # This won't work with non-GNU stat. > FILE_SIZE=`stat --format "%s" "$0"` > offset=$(($FILE_SIZE - 4)) As the comment suggests, that command is non-portable and works with GNU stat (linux) only. This is not a standard. The equivalent BSD command line would be: FILE_SIZE=`stat -f %z "$0"` I wonder why the script even needs to find out its own size, and then read binary data from itself?!? Is this some kind of "copy protection" or similar tricks? If so, I suspect that it is highly non-portable and will be difficult to get to run on anything else than linux. > # XXX: put extraction in its own function > MAGIC_NUMBER=`od -An -t u4 -N 4 -j $MAGIC_OFFSET "$file" | tr -d ' '` This command works fine on FreeBSD 8.1. If it doesn't work in the context of the script, I suspect that it is caused by preceding problems that set one of the variables to a wrong value. As a work-around, you might try running the script with /compat/linux/bin/sh instead of /bin/sh. You need to enable Linux compatibility ("kldload linux") and install ports/emulators/linux_base-f10 if you don't have it already. As this is not a bug in FreeBSD, I suggest that this PR can be closed. Do you agree? Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd "Unix gives you just enough rope to hang yourself -- and then a couple of more feet, just to be sure." -- Eric Allman