From owner-freebsd-doc@FreeBSD.ORG Thu Jan 25 17:40:23 2007 Return-Path: X-Original-To: freebsd-doc@hub.freebsd.org Delivered-To: freebsd-doc@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 4B04B16A585 for ; Thu, 25 Jan 2007 17:40:23 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [69.147.83.40]) by mx1.freebsd.org (Postfix) with ESMTP id A09E813C4D0 for ; Thu, 25 Jan 2007 17:40:22 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.4/8.13.4) with ESMTP id l0PHeM4J079571 for ; Thu, 25 Jan 2007 17:40:22 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.13.4/8.13.4/Submit) id l0PHeMmL079570; Thu, 25 Jan 2007 17:40:22 GMT (envelope-from gnats) Resent-Date: Thu, 25 Jan 2007 17:40:22 GMT Resent-Message-Id: <200701251740.l0PHeMmL079570@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-doc@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Anton Yuzhaninov Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 92B1F16A402 for ; Thu, 25 Jan 2007 17:39:11 +0000 (UTC) (envelope-from citrin@mf1.rambler.ru) Received: from mf1.rambler.ru (mf1.rambler.ru [81.19.66.146]) by mx1.freebsd.org (Postfix) with ESMTP id 20FD813C45A for ; Thu, 25 Jan 2007 17:39:10 +0000 (UTC) (envelope-from citrin@mf1.rambler.ru) Received: from mf1.rambler.ru (localhost [127.0.0.1]) by mf1.rambler.ru (8.13.8/8.13.8) with ESMTP id l0PHQtZn032733 for ; Thu, 25 Jan 2007 20:26:55 +0300 (MSK) (envelope-from citrin@mf1.rambler.ru) Received: (from citrin@localhost) by mf1.rambler.ru (8.13.8/8.13.8/Submit) id l0PHQtMF032732; Thu, 25 Jan 2007 20:26:55 +0300 (MSK) (envelope-from citrin) Message-Id: <200701251726.l0PHQtMF032732@mf1.rambler.ru> Date: Thu, 25 Jan 2007 20:26:55 +0300 (MSK) From: Anton Yuzhaninov To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Cc: Subject: docs/108346: tmpnam(3) should note that that TMPDIR env may be ignored X-BeenThere: freebsd-doc@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Anton Yuzhaninov List-Id: Documentation project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 25 Jan 2007 17:40:23 -0000 >Number: 108346 >Category: docs >Synopsis: tmpnam(3) should note that that TMPDIR env may be ignored >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-doc >State: open >Quarter: >Keywords: >Date-Required: >Class: doc-bug >Submitter-Id: current-users >Arrival-Date: Thu Jan 25 17:40:21 GMT 2007 >Closed-Date: >Last-Modified: >Originator: Anton Yuzhaninov >Release: FreeBSD 6.2-RELEASE amd64 >Organization: Rambler >Environment: >Description: tmpnam(3) should note that that tmpfile() ignore TMPDIR environment variable if issetugid(3) return non zero. >How-To-Repeat: >Fix: Anything like this: --- lib/libc/stdio/tmpnam.3.orig Thu Jan 25 20:02:50 2007 +++ lib/libc/stdio/tmpnam.3 Thu Jan 25 20:19:59 2007 @@ -156,6 +156,16 @@ .Dv NULL pointer on error. +.Sh ENVIRONMENT +The +.Fn tmpfile +ignores the +.Ev TMPDIR +environment variable if process created as a result of an +.Xr execve 2 +system call which had either of the setuid or setgid bits set (and extra +privileges were given as a result) or if it has changed any of its real, +effective or saved user or group ID's since it began execution. .Sh COMPATIBILITY These interfaces are provided from System V and .Tn ANSI @@ -228,7 +238,8 @@ the FSA.) .Sh SEE ALSO .Xr mkstemp 3 , -.Xr mktemp 3 +.Xr mktemp 3 , +.Xr issetugid 2 .Rs .%T "The FreeBSD Security Architecture" .Re >Release-Note: >Audit-Trail: >Unformatted: