... check out the latest version of the scripts you have in your source code management tool, and compare the output of this script against the output of the program running on the website.

That might not be possible, if the script involves using data that is local to the server (e.g. a database, config files or whatever) to determine what the output should be. If the author doesn't have access to the currently running source code, then access to such other data is likely to be lacking as well.

Something like l3nz's idea below might be applicable, unless one of the customer's modifications to the source involves removing the self-identification logic.

In reply to Re: Re: OT: Getting at source code of CGI scripts by graff
in thread OT: Getting at source code of CGI scripts by Anonymous Monk

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