Config file varable substitution.

[Guy Fraser]

I am working on a program to read the config files.

I have now got it doing pretty much what I want, but need a little 
more information that is provided in the docs and config files.

>From the man page on radiusd.conf I found that variables can be named :

${section.subsection.name}

I have tentatively made an assumption that named instances use the 
instance name rather than the section or subsection.

Please check the examples below and let me know if my assumptions 
were correct.

Thanks in advance.

Examples:

Global		[checkrad] => /usr/local/sbin/checkrad

checkrad = ${sbindir}/checkrad


Section		[security.max_attributes] => 200

security {
        max_attributes = 200
...
}


Subsection	[modules.ldap.net_timeout] => 1

modules {
...
        ldap {
...
                net_timeout = 1
        }
...
}


Instance	[modules.IPASS.format] => prefix

modules {
...
        realm IPASS {
                format = prefix
...
        }
...
}
] => prefix