[10579] in bugtraq
Re: LD_PRELOAD: Clarification
daemon@ATHENA.MIT.EDU (John Daniele)
Wed May 19 15:05:09 1999
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Date: Tue, 18 May 1999 12:06:47 -0400
Reply-To: John Daniele <JDaniele@KPMG.CA>
From: John Daniele <JDaniele@KPMG.CA>
To: BUGTRAQ@NETSPACE.ORG
Barnett wrote:
> cc -o rollover rollover.c
> "rollover.c", line 75: undefined symbol: PTRACE_PEEKUSR
> "rollover.c", line 77: undefined symbol: EBX
> cc: acomp failed for rollover.c
> *** Error code 2
> Solaris 2.6
> What OS is your program for?
In response to similar emails rev'd, I was sitting in front of a linux box at
the
time of the LD_PRELOAD posting, thus my code reflects this. However, Solaris
2.6 should support PTRACE_PEEKUSR as this was favoured over PTRACE_READDATA
in 2.5 I believe (correct me if I'm wrong). In any case, look at <sys/ptrace.h>
for valid request types. The value of EBX is defined in <asm/ptrace.h> and is 0.
If all else fails, you can always issue ioctl routines on a process within the
/proc filesystem ;)
John
Daniele
jdaniele@kpmg.ca
VOX:
(416) 777-3759
