From owner-freebsd-questions Fri Jul 28 16: 0:45 2000 Delivered-To: freebsd-questions@freebsd.org Received: from merkur.hrz.uni-giessen.de (merkur.hrz.uni-giessen.de [134.176.2.12]) by hub.freebsd.org (Postfix) with ESMTP id 42EEB37B510 for ; Fri, 28 Jul 2000 16:00:36 -0700 (PDT) (envelope-from Ariel.Burbaickij@mni.fh-giessen.de) Received: from caspar.mni.fh-giessen.de by merkur.hrz.uni-giessen.de with ESMTP for questions@freebsd.org; Sat, 29 Jul 2000 01:00:18 +0200 Received: from sun34.mni.fh-giessen.de ([134.176.183.134] helo=sun34) by caspar.mni.fh-giessen.de with esmtp (Exim 2.12 #6) id 13IJ2Y-0002Rw-00 for questions@freebsd.org; Sat, 29 Jul 2000 00:55:38 +0200 Date: Sat, 29 Jul 2000 01:02:00 +0200 (MET DST) From: Ariel Burbaickij X-Sender: hg9456@sun34 To: questions@freebsd.org Subject: How to debug library function at run-time actually to see what isit doing ? Message-Id: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Situation : fopen(name,"r")returns NULL on existing file with proper permissions I know possible reasons but I would like to know what is the reason in this special situation .How to see what the function is really doing and why it leads to seeting return value to NULL. Regards, Ariel To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message