Date: Fri, 4 Feb 2005 09:27:13 -0500 (EST) From: "Matthew N. Dodd" <mdodd@FreeBSD.ORG> To: Alexander Leidinger <Alexander@Leidinger.net> Cc: cvs-all@FreeBSD.ORG Subject: Re: cvs commit: src/libexec/rtld-elf libmap.c libmap.h rtld.1 rtld.c Message-ID: <20050204092535.M76517@sasami.jurai.net> In-Reply-To: <20050204151805.ztnw76rhw80k8w48@netchild.homeip.net> References: <200502040246.j142kfO5085365@repoman.freebsd.org> <20050204151805.ztnw76rhw80k8w48@netchild.homeip.net>
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On Fri, 4 Feb 2005, Alexander Leidinger wrote:
> "Matthew N. Dodd" <mdodd@freebsd.org> wrote:
>
>> Another handy libmap patch. Lets you do stuff like this:
>>
>> LD_LIBMAP="libpthread.so.1=libthr.so.1" mythreadedapp
>
> Even for SUID programs where this feature may be abused to do nasty things?
trust = !issetugid();
...
if (trust) {
...
libmap_override = getenv(LD_ "LIBMAP");
...
So no, no more open to abuse than LD_PRELOAD etc.
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