From owner-freebsd-hackers Wed Dec 23 08:34:42 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id IAA06986 for freebsd-hackers-outgoing; Wed, 23 Dec 1998 08:34:42 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from ol.kyrnet.kg (ol.kyrnet.kg [195.254.160.10]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id IAA06979 for ; Wed, 23 Dec 1998 08:34:37 -0800 (PST) (envelope-from mlists@gizmo.kyrnet.kg) Received: from gizmo.kyrnet.kg (IDENT:mlists@gizmo.kyrnet.kg [195.254.160.13]) by ol.kyrnet.kg (8.9.1a/8.9.1) with ESMTP id VAA04499; Wed, 23 Dec 1998 21:02:44 +0600 Received: from localhost (mlists@localhost) by gizmo.kyrnet.kg (8.9.1a/8.9.1) with ESMTP id VAA11701; Wed, 23 Dec 1998 21:32:31 +0500 Date: Wed, 23 Dec 1998 21:32:29 +0500 (KGT) From: CyberPsychotic Reply-To: fygrave@tigerteam.net To: freebsd-hackers@FreeBSD.ORG, bsdi-users@bsdi.com Subject: LD_PRELOAD similarities. Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hello people, Some time ago I've written a library wrapper for some Linux boxes in my university, which are doing some additional checks for system(..); and exec*(,...) libc library functions before letting them being executed. (since we are running a restricted shell there, and limit the set of binaries, users could run, by a system table). Some time ago we had some FreeBSD and BSDi servers installed, where we aim to give students an access. I tried to port my library to FreeBSD but I got stuck alittle bit with LD_PRELOAD functionality: (*) is there a predefined library name, which would be preloaded all the time, when a dinamically-linked binary executed? (on linux it's /etc/ld.so.preload) (*) Is BSDi compatible with FreeBSD here? (seems not quite, since whether I try to set LD_PRELOAD variable on BSDi machine, it makes no effect). Thanks beforehands best regards Fyodor -- fygrave@tigerteam.net http://www.kalug.lug.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message