[nzlug] Find and replace within a binary file?

[Philip Charles]

On Thursday 03 July 2008, Karl. wrote:
> On Thu, Jul 03, 2008 at 11:13:57AM +1200, Simon wrote:
> > Hi There, Im trying to compile a driver and have these
> > instructions...
> >
> > Now copy lib/fcpci-lib.o to lib/f2pci-lib.o and replace all
> > occurences of "fcpci" in
> > f2pci-lib.o by "f2pci". (It's a binary file, so be careful)
> > Replace all occurences of __fcpci__ in src.drv/* by __f2pci__. (quite
> > many) In src.drv/defs.h, replace
> >
> > Im wondering if someone could assist me to do the find and replace
> > for the binary file. Im ok with the rest of it :)
>
> I'd try BBE - the man page says:
> "bbe - binary block editor.
> bbe is a sed-like editor for binary files. It performs binary
> transformations on the blocks of input stream."
>
> Look at http://bbe-.sourceforge.net/ or find it in Debian, and
> presumably Ubuntu.
>
> Karl.

I use mc's text editor for this kind of work as a matter of routine.  mc 
will save a binary without altering the original in any way, and it has 
search and replace.

Caveat.  The replacement string needs to be exactly the same length as the 
original.

Phil.

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