It may interest some to learn that
IBM developerWorks have published an article titled
Software security analysis with BogoSec.
"
BogoSec is a source code metric tool that wraps multiple source code scanners, invokes them on its target code, and produces a final score that approximates the security quality of the code. This article discusses the BogoSec methodology and implementation, and illustrates the output of BogoSec when run on a number of test cases, including Apache Web server, OpenSSH, Sendmail, Perl, and others."
BogoSec is packaged as a Perl script and dependant modules.
Martin