lkml.org 
[lkml]   [1998]   [Dec]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: High UID support for Linux
On Mon, Nov 30, 1998 at 02:31:36PM +0000, Riley Williams wrote:
> Hi Torsten.
>
> >> When you have no sources ? GREAT idea !
>
> > Where is the problem? Are there no Un*x-Tools to patch binary
> > files? We just have to search for a getpwent-call...
>
> OK, you do it - I'll send you the binary of a program there's no
> source to, you tell me the offsets to every getpwent call therein,
> making sure they are genuine pwent calls and not just data bytes that
> happen to look the same...

Sorry. I guess I forgot the smiley. But: It certainly possible. I know it is a
lot of work...

I patched some programs to run on my 68000er Atari which were compiled for
68030 - that was anything but fun...

> Incidentally, remember that not all programs will load registers in
> the same order, and that the arguments pushed on the stack are not
> necessarily done consecutively...
>
> You game?

To increase my understanding: I thought the jumps to library calls have to be
flagged with the function name in some way because the dynamic linker has to
resolve the calls. Am I wrong here?

cu
Torsten
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2005-03-22 13:45    [W:0.249 / U:0.220 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site