RE: LD_PRELOAD problem

From: Tanel Poder <tanel.poder.003@xxxxxxx>
To: exriscer@xxxxxxxxx, "'Jesse, Rich'" <Rich.Jesse@xxxxxx>
Date: Thu, 31 Aug 2006 21:17:24 +0800

LD_PRELOAD allows you to hijack dynamicly loaded library functions. If
sqlplus calls function X, then if this function X is exported from your
/sbl/xxx.sl then this function X is called from /sbl/xxx.sl even if it
exists in some other dll against which the executable is linked (like
libclntsh* libraries).
 
Run: nm /sbl/xxx.sl to see which functions may be hijacked there, this could
give some more indication what's going on.
 
And of course, the library's word-size has to match word-size of the
executable. If the word sizes are different, you have to recompile the
library.
 
Tanel.



  _____  

From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx]
On Behalf Of LS Cheng
Sent: Thursday, August 31, 2006 04:45
To: Jesse, Rich
Cc: oracle-l
Subject: Re: LD_PRELOAD problem


 
However when I unset LD_PRELOAD sqlplus works but of course the application
specific program fails.

References:

Re: LD_PRELOAD problem
From: LS Cheng

RE: LD_PRELOAD problem

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