From owner-freebsd-java  Tue Aug 27 23: 4: 6 2002
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From: Ari Suutari <ari.suutari@syncrontech.com>
Organization: Syncron Tech Oy
To: dan_256@yahoo.com, Greg Lewis <glewis@eyesbeyond.com>,
	Ernst de Haan <znerd@FreeBSD.ORG>
Subject: Re: Jboss3ctl update (I think I know the problem)
Date: Wed, 28 Aug 2002 09:04:31 +0300
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Hi,

On Wednesday 28 August 2002 04:39, Dan Hulme wrote:
> Basically, that's it.  The .java_wrapper script is not exactly the prob=
lem,
> but the ENV.  As I stated in my original post
> (http://www.geocrawler.com/archives/3/162/2002/6/0/9029840/), the probl=
em
> is two-fold.  In my understanding, the entire ENV will be ignored any t=
ime
> you are SUIDing.  Even if I am wrong about that, the LD_LIBRARY_PATH, w=
hich
> the .java_wrapper usually sets to link in some libs for java will be
> ignored according to "man ldconfig" when SUIDing.

=09Only LD_LIBRARY_PATH, LD_DEBUG and LD_PRELOAD is ignored.=20
=09From rtld.c:

    trust =3D geteuid() =3D=3D getuid() && getegid() =3D=3D getgid();

    ld_bind_now =3D getenv("LD_BIND_NOW");
    if (trust) {
        ld_debug =3D getenv("LD_DEBUG");
        ld_library_path =3D getenv("LD_LIBRARY_PATH");
        ld_preload =3D getenv("LD_PRELOAD");
    }

=09

=09So, really just calling setuid(geteuid()) makes things work.
=09No special kludgery is necessary.

=09=09Ari S.


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