From owner-freebsd-questions Thu Nov 18 15:43:22 1999 Delivered-To: freebsd-questions@freebsd.org Received: from fly.lglobus.ru (fly.lglobus.ru [195.34.224.130]) by hub.freebsd.org (Postfix) with ESMTP id 2FABB1554A for ; Thu, 18 Nov 1999 15:43:18 -0800 (PST) (envelope-from rover@fly.lglobus.ru) Received: (from rover@localhost) by fly.lglobus.ru (8.9.3/8.9.2) id CAA64435; Fri, 19 Nov 1999 02:44:21 +0300 (MSK) (envelope-from rover) Date: Fri, 19 Nov 1999 02:44:21 +0300 From: "Oleg V. Volkov" To: Alfred Perlstein Cc: freebsd-questions@freebsd.org Subject: Re: Is there correct way for program to read from itself? Message-ID: <19991119024421.B63985@fly.lglobus.ru> Reply-To: rover@lglobus.ru References: <19991119013456.A63985@fly.lglobus.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0pre3i In-Reply-To: Organization: -=/ SR 13 /=- Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, Nov 18, 1999 at 03:09:19PM -0800, Alfred Perlstein wrote: > > > I think procfs would be even more helpful (unless the 'file' is still > > > done, or is it?) You guys should have gotten my profs suggestion > > > but someone obviously dropped cc lines. *sigh* > > > And Greg is definetly right, you should be able to look around to > > > solve this problem, if the problem is then PATH, then searching > > > the path is what you need to do, but I still think procfs offers > > > what you need. > > > man 5 procfs. > > Look a this dump: > > 481 ktrace RET ktrace 0 > > 481 ktrace CALL execve(0xbfbfdc9f,0xbfbfdbc4,0xbfbfdbcc) > > 481 ktrace NAMI "./hellow" > > 481 hellow RET execve 0 > > 481 hellow CALL getpid > > 481 hellow RET getpid 481/0x1e1 > > 481 hellow CALL open(0xbfbfdb64,0,0) > > 481 hellow NAMI "/compat/linux/proc/481/exe" > > 481 hellow NAMI "/proc/481/exe" > > 481 hellow RET open JUSTRETURN > > 481 hellow CALL old.lseek(0xfffffffe,0x688,0) > > 481 hellow RET old.lseek -1 errno -9 Unknown error: -9 > > 481 hellow CALL exit(0x7f) > > > > I just don't know why lseek fails. > > I don't know either, perhaps the source to this errant program > would be helpful? > This looks like a Linux program, just what are you trying to by > opening 'exe'? You obviously didn't read the procfs manpage, please > do read it and then follow up. Oops! Thanks for point! Damn! Where i was looking at? Of course exe should be file! -- Oleg V. Volkov aka Rover EH: LCM Rover Join Elite Imperial Fleet! http://www.emperorshammer.org E-mail redirector: sr-13@mail.ru (always up) -=/ SR 13 /=- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message