From owner-freebsd-bugs@FreeBSD.ORG Wed Dec 7 11:00:13 2005 Return-Path: X-Original-To: freebsd-bugs@hub.freebsd.org Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0E13716A41F for ; Wed, 7 Dec 2005 11:00:13 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3BED243D55 for ; Wed, 7 Dec 2005 11:00:12 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.3/8.13.3) with ESMTP id jB7B0CBb072729 for ; Wed, 7 Dec 2005 11:00:12 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.13.3/8.13.1/Submit) id jB7B0CNS072728; Wed, 7 Dec 2005 11:00:12 GMT (envelope-from gnats) Resent-Date: Wed, 7 Dec 2005 11:00:12 GMT Resent-Message-Id: <200512071100.jB7B0CNS072728@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Johan van Selst Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EBFA916A41F for ; Wed, 7 Dec 2005 10:57:15 +0000 (GMT) (envelope-from johans@stack.nl) Received: from mx1.stack.nl (meestal.stack.nl [131.155.140.141]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7F80443D5C for ; Wed, 7 Dec 2005 10:57:14 +0000 (GMT) (envelope-from johans@stack.nl) Received: by mx1.stack.nl (Postfix, from userid 65534) id B64284AEB7; Wed, 7 Dec 2005 11:56:26 +0100 (CET) Received: from mud.stack.nl (mud.stack.nl [IPv6:2001:610:1108:5011:207:e9ff:fe14:b498]) by mx1.stack.nl (Postfix) with ESMTP id 35AD94AEA9 for ; Wed, 7 Dec 2005 11:56:26 +0100 (CET) Received: by mud.stack.nl (Postfix, from userid 801) id 3A44417035; Wed, 7 Dec 2005 11:57:17 +0100 (CET) Message-Id: <20051207105717.3A44417035@mud.stack.nl> Date: Wed, 7 Dec 2005 11:57:17 +0100 (CET) From: Johan van Selst To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Cc: Subject: kern/90063: procfs: access("/proc/123", F_OK) doesn't work on >= 6.x X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Johan van Selst List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Dec 2005 11:00:13 -0000 >Number: 90063 >Category: kern >Synopsis: procfs: access("/proc/123", F_OK) doesn't work on >= 6.x >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Dec 07 11:00:11 GMT 2005 >Closed-Date: >Last-Modified: >Originator: Johan van Selst >Release: FreeBSD 6.0-STABLE i386 >Organization: >Environment: System: FreeBSD mud.stack.nl 6.0-STABLE FreeBSD 6.0-STABLE #8: Mon Dec 5 13:04:53 CET 2005 johans@mud.stack.nl:/usr/obj/usr/src/sys/mud i386 >Description: A quick and dirty check for a running pid does if (access("/proc/123", F_OK)) However on a -CURRENT system, this will always return OK status (0) - regardless of whether the directory/process is present or not. Only when checking for permissions (R_OK, X_OK) a real check seems to be performed. This is not compatible with the behaviour on FreeBSD 5.x and older. >How-To-Repeat: Compare the result of this code on a 5.x and 6.x system for any non-existing /proc/1234 entry if (access(argv[1], F_OK) < 0) return EX_UNAVAILABLE; if (access(argv[1], X_OK) < 0) return EX_NOPERM; return EX_OK; >Fix: >Release-Note: >Audit-Trail: >Unformatted: