Re: Generate hash code for a source member?

[Raul A Jager <raul@xxxxxxxxxx>]

MD5 is a standard way to generate a number (signature) from a file in such a
way that it is almos sure that will be different unless the files are
identical.  I say almost, but the chance of two different files giving the same
MD5 is realy very tiny.

Raul
____________________________________________________________________________
Dan Bale wrote:

> (Cross posted on Midrange-L, RPG400-L, & MI400)
>
> Has anyone invented this wheel?  I'm looking for a way to compare source
> members on different systems to determine whether or not they are
> identical - Yes or No.  If different, I don't care how different.
>
> Because I don't really want to save & restore whole source files between two
> systems, my thinking was to create a hash code for each source member based
> on the contents.  Create a file with fields:  Library Name, File Name,
> Source Member Name, Hash Code.  FTP the file from the system A to system B
> and compare the two.  I'm fairly confident that the two source files are
> identical, but I need to be sure.
>
> Is a hash code generator what I'm looking for here?  Feed in
> Library/File(Member) and get back a 16(?)-byte hash code?  If so, does
> anyone have one that runs on V3R2?
>

<SNIP>