license of the code in freebsd documantation

[Kouichiro Iwao]

I'm writing a script based on the code in freebsd docs,
and caring about the license of it. The original scripts are 
example 6 and 7 of the following page. How do I have to treat 
my code if I distribute it?
http://www.freebsd.org/doc/en/articles/ldap-auth/client.html

I know freebsd docs is licensed under The FreeBSD Documantation 
License but don't know about codes in them.

-- 
kiwao <meta at club.kyutech.ac.jp>