Read/WriteProcessMemory fix
Andrew
andrew at transgaming.com
Thu Dec 6 18:33:14 CST 2001
On Thu, 2001-12-06 at 19:09, Alexandre Julliard wrote:
> Andrew <andrew at transgaming.com> writes:
>
> > This fixes a bug in ReadProcessMemory and WriteProcessMemory, and
> > rearranges some of the code. (In particular, all the code that knows
> > that ptrace works in ints has been contained to server/ptrace.c.)
>
> What bug is it fixing?
If I recall correctly, an app was reading some memory, modifying it and
writing it back. The written data was shifted by a small (< 4) number of
bytes, so I blamed the alignment/masking code.
> I'm not sure the reorganisation is a good idea; it seems less
> efficient, less portable, and AFAICS broken for accesses of less than
> an int size.
Ok. I will try to dredge up the exact call sequence and parameters that
demonstrate the problem. I won't have time to develop a new patch, but
hopefully someone else will.
Andrew Lewycky
andrew at transgaming.com
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