[23778] in Kerberos
RE: Kerberos Digest, Vol 28, Issue 32
daemon@ATHENA.MIT.EDU (Lamar.Saxon@americredit.com)
Tue Apr 26 18:13:55 2005
Content-Class: urn:content-classes:message
MIME-Version: 1.0
Content-Type: text/plain;
charset="us-ascii"
Date: Tue, 26 Apr 2005 17:12:00 -0500
Message-ID: <5C066E580F0244458087CC59AC4F74E31ECFE0@srvexcharl02.acf.americredit.com>
From: <Lamar.Saxon@americredit.com>
To: <kerberos@mit.edu>
Content-Transfer-Encoding: 8bit
Errors-To: kerberos-bounces@mit.edu
Tried the suggestions below ( changes to dnsglue.c )
First option compiled; but gave the same errors locating KDC.
Second option would not compile. Lots of errors.
Thanks,
Lamar
------------------------------
Date: Tue, 26 Apr 2005 16:36:26 -0400
From: Ken Raeburn <raeburn@MIT.EDU>
To: Milton Turley <mturley@lanl.gov>
Cc: kerberos@mit.edu
Subject: Re: KRB5 1.4 vs. KRB5 1.3.6 on AIX 5.2 (fwd)
Message-ID: <7768dc62668092bd09f0fb17051b44bc@mit.edu>
In-Reply-To: <6.0.1.1.2.20050426111426.033677d0@cic-mail.lanl.gov>
References: <6.0.1.1.2.20050426111426.033677d0@cic-mail.lanl.gov>
Content-Type: text/plain; charset=US-ASCII; format=flowed
MIME-Version: 1.0 (Apple Message framework v622)
Content-Transfer-Encoding: 7bit
Precedence: list
Message: 9
On Apr 26, 2005, at 13:40, Milton Turley wrote:
> I have done some research on this problem. The host resolve code does
> not complete successfully. I have traced the error to the routine at
> /kerberos/mit/krb5-1.4/src/lib/krb5/os/dnsglue.c. In the routine a
> call is made to res_ninit to provide dns information for the kdc.
> res_ninit updates the structure at statbuf but overlays memory 72
> bytes past the structure boundary.
If we change statbuf to something like:
struct { struct __res_state s; char pad[72]; } statbuf;
or perhaps:
struct { struct __res_state s; char pad[72]; } statbuf1;
#define statbuf (statbuf1.s)
does it work then?
Do the AIX 5.2 headers declare res_ninit and indicate what type should
be used for the first argument?
> I have opened a problem with IBM on res_ninit. The problem is not yet
> resolved but IBM suggested using a malloc for the structure instead of
> static storage. I am trying to get IBM to correct the error in
> res_ninit. No resoultion yet.
Well, technically, we're using automatic storage, not static, but it
seems to me that the problem is not knowing the size and/or type to
allocate, not stack vs heap allocation. (Though heap allocation would
change the failure mode caused by an overrun, it wouldn't by itself get
rid of the overrun.)
Ken
------------------------------
_______________________________________________
Kerberos mailing list
Kerberos@mit.edu
https://mailman.mit.edu/mailman/listinfo/kerberos
End of Kerberos Digest, Vol 28, Issue 32
****************************************
Privileged and Confidential. This e-mail, and any attachments there to, is intended only for use by the addressee(s) named herein and may contain privileged or confidential information. If you have received this e-mail in error, please notify me immediately by a return e-mail and delete this e-mail. You are hereby notified that any dissemination, distribution or copying of this e-mail and/or any attachments thereto, is strictly prohibited.
________________________________________________
Kerberos mailing list Kerberos@mit.edu
https://mailman.mit.edu/mailman/listinfo/kerberos
