We remove characters like ^ and ~ from the ident string after checking
if it's valid. If it consisted entirely of those, we'd try to send an
empty string to ircd, which would break the protocol, so don't let that
happen.
This only supports two addresses as the intended use is 1 IPv4 and 1 IPv6
address on a single-homed host, and the only supported configuration of
outgoing connections to other servers is to bind a single IPv4 or IPv6
address.
Otherwise ident returns without setting itself running causing problems.
Move opm/blacklist before ident/rdns so that they can receive completion
notifications.
Iteration is the primary thing done on these, so using a dictionary
doesn't help a lot. Furthermore (and most importantly), they are not
safe to delete from.
Clean up spaces/tabs mixing mess (bleh), add some defaults for authd
stuff, and get rid of CHARYBDIS_SOMAXCONN (just define SOMAXCONN if it's
available...).
Provider ID's are now assigned dynamically at load-time. To accomodate
this, there is now a lookup system for finding providers by name (all
providers have names as well).
Provider status (done, running, not run) is now attached to the
provider-specific data of the client. A reference count of auth
instances is kept in the auth_client struct to determine if a client is
done or not.
This also moves a lot of the logic for manipulating provider data into
into the provider.h header for inlining (no point in a function call for
these simple accessors).
Clients are stored in a dictionary referenced by id (to allow for
UINT32_MAX auth clients, which is plenty).
Each provider now has a data slot (this limits the number of providers
to 32 for now, but that's plenty for now) which they can use to attach
data to auth_clients. This consolidates data, aids in debugging, and
makes it easier to just pass around auth_client structures.
