Now that initscripts also support IPADDRn syntax, update the implementation
to match the intitscripts' one (see rh #633984)
Basically, writer produces IPADDR0 .. IPADDR255. reader is more tolerant and
supports older configs too: IPADDR, IPADDR0, IPADDR1 could be missing, from
IPADDR2 up the indexes have to be contiguous.
These are distinct from old-school LEAP (ie, Network EAP) in that
they are standard Dynamic WEP with LEAP as an EAP method and use
open-system authentication. Old LEAP uses the non-standard LEAP
authentication algorithm. The config for each is different and thus
we need to make sure we handle both cases.
Timestamps are no longer written to the connection file itself, but
are kept in a lookaside file in /var to allow for read-only or
stateless /etc and to ease system administration and deployment.
Some adjustments need to be made to read and write secret flags, and
to ensure that connections that don't have system-owned secrets are
still parsed as expected. testcases for 802.1x connections to come
shortly.
It's always used with a GByteArray anyway, as are most
functions in nm-utils.h. Even better, we can skip the
memcpy since it turns out to be pointless.
