I agree the driver concept is pretty difficult to grasp.
I have edited my config file and gotten it to do what I want through
looking at examples and trial and error but as far as understanding the
basic concepts of drivers I think I am only 25 % there.
I even bought the ORielly Exim book but my brain seems to lock up while
reading it.
An "Exim Drivers for Dummies" would be nice.
On Monday, January 6, 2003, at 11:37 AM, Derek Simkowiak wrote:
>
> I'm trying to grasp the underlying Exim config model. In
> particular, I want to know what the 'driver' config option is supposed
> to
> represent.
>
> So I get to this part in the manual:
> -----------------------------------------------------------------------
> ------
> Section 6.14. Format of driver configurations
> [...]
> Within a driver definition, there are two kinds of option: generic and
> private. The generic options are those that apply to all drivers of the
> same type (that is, all routers, all transports or all authenticators).
> There is always at least one generic option setting, called driver,
> which
> specifies which particular driver is being used.
> [...]
> The options may appear in any order, except that the driver option must
> precede any private options, since these depend on the particular
> driver.
> -----------------------------------------------------------------------
> ------
>
> I'm sorry, but this just does not make sense. Boil this down and
> we get:
>
> "Within a driver definition, [...] there is [...] one [...]
> setting, called 'driver', which specifies which particular driver is
> being
> used. The options [...] depend on the particular driver."
>
> How can one "specify" the driver to be used in the definition of a
> "driver"? To me that sounds like trying pick up a box while standing
> on
> it. Looking in the example config, I see lines like
>
> driver = redirect
>
> ...and yet I do NOT see the definitions of 'redirect' anywhere.
> According to the docs above, I would expect to see this line somewhere:
>
> redirect:
>
> ...but I do not. Is there a list of built-in drivers that do not
> need to be defined in the config file? (If so, where is that list in
> the
> manual, and what are their default configs?)
>
> In short, what does the 'driver' config options actually
> represent?
>
>
> Thank You,
> Derek
>
> P.S.> Also note that Section 3.7 defines a "driver" as either a router
> or
> a transport. But Section 6.14 above seems to define "driver" as a
> router,
> a transport, or an authenticator. So is an authenticator a "driver"?
>
>
> --
>
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>
