From owner-freebsd-stable@FreeBSD.ORG  Fri Jun 20 06:42:04 2003
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id B56FA37B401
	for <stable@FreeBSD.ORG>; Fri, 20 Jun 2003 06:42:04 -0700 (PDT)
Received: from mailhost.firstcallgroup.co.uk (dilbert.firstcallgroup.co.uk
	[194.200.93.142])
	by mx1.FreeBSD.org (Postfix) with ESMTP id C9E1443FD7
	for <stable@FreeBSD.ORG>; Fri, 20 Jun 2003 06:42:03 -0700 (PDT)
	(envelope-from pfrench@firstcallgroup.co.uk)
Received: from pfrench by mailhost.firstcallgroup.co.uk with local (Exim 4.12)
	id 19TM9P-000J3O-00
	for stable@FreeBSD.ORG; Fri, 20 Jun 2003 14:41:59 +0100
To: stable@FreeBSD.ORG
Message-Id: <E19TM9P-000J3O-00@mailhost.firstcallgroup.co.uk>
From: Pete French <pfrench@firstcallgroup.co.uk>
Date: Fri, 20 Jun 2003 14:41:59 +0100
Subject: procfs problems -cmdline turncated at 256 bytes ?
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Production branch of FreeBSD source code
	<freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 20 Jun 2003 13:42:05 -0000


running 4.8 stable, the cmdline file in /proc/$$ seems to be trucated
at, or before 256 bytes for very long command lines. I cant find
any refernec to this behaviour in the manpage, nor does google reveal
anything. I took a look in the source, but didnt properly understand what
was going on - the comments imply that it does give the full commandline
for the current process, however.

any suggestions ? any alternative ways to get hold of the arguments from
within a running program (which doesnt have access to "main()").

-pcf.