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Última Actualización: 17 de Agosto de 1.998 - Lunes
BCC: anita@argo.es,
Lista de Proveedores Internet <proveedores@listserv.rediris.es>,
Lista proveedores QMD <proveedores_qmd@syntax-error.org>,
"Grupo de Desarrollo Informático" <gdi@uvigo.es>,
teleco-vigo@argo.es, hacking@argo.es
Message-ID: <35D83581.20270144@argo.es>
Date: Mon, 17 Aug 1998 13:52:01 +0000
From: "Jesús Cea Avión" <jcea@argo.es>
Organization: Argo Redes y Servicios Telematicos, S.A.
Newsgroups: comp.sys.sun.admin,comp.sys.sun.misc
To: Casper Dik
Subject: Silly bug in SNOOP
Bug just reported to local SunSolve Service in Spain
http://sunsolve.sun.com/sunsolve/wwscenter.html#spain
# uname -a
SunOS corinto 5.5.1 Generic_103640-20 sun4u sparc SUNW,Ultra-1
# type snoop
snoop is hashed (/usr/sbin/snoop)
# ls -l /usr/sbin/snoop
-r-xr-xr-x 1 bin bin 204164 Aug 13 18:02 /usr/sbin/snoop
(date is from last patching)
# ./a.out /usr/sbin/snoop
MD5: 66609737ff6444728c3eac8268a0599a
SHA-1: 51647189daf63068e38498acad68d6da8b3b43f9
(a.out is a hash program)
All recomended patches installed.
The problem:
then the hexadecimal dump will show the last byte as a 32-bit sign extended value. That is:
| real last byte | value showed |
| 0 | 00 |
| ... | ... |
| 7e | 7e |
| 7f | 7f |
| 80 | ffffff80 |
| 81 | ffffff81 |
| ... | ... |
| fe | fffffffe |
| ff | ffffffff |
I discovered the bug last week, trying to feed the snoop output into a home-made script.
--
Jesus Cea Avion _/_/ _/_/_/ _/_/_/
jcea@argo.es http://www.argo.es/~jcea/ _/_/ _/_/ _/_/ _/_/ _/_/
_/_/ _/_/ _/_/_/_/_/
PGP Key Available at KeyServ _/_/ _/_/ _/_/ _/_/ _/_/
"Things are not so easy" _/_/ _/_/ _/_/ _/_/ _/_/ _/_/
"My name is Dump, Core Dump" _/_/_/ _/_/_/ _/_/ _/_/
"El amor es poner tu felicidad en la felicidad de otro" - Leibnitz
