by default, and crushes old configuration files when sendmail gets IPv6
connection. by default listen to IPv4 socket only for backward compatibility.
turn on IPv6 support.
IPv6 socket can be enabled by the following sendmail.cf directive:
O DaemonPortOptions=Family=inet,address=0.0.0.1
O DaemonPortOptions=Family=inet6,address=::
- sendmail configuration files are in /etc/mail, not /etc.
- src/etc/aliases will be installed into /etc/mail/aliases (confusing)
- rc.d/sendmail warns if /etc/sendmail.cf exists.
contents of that header (the only file that includes it compiles to the
same object code on multiple architectures with or without including
<ieeefp.h>), so remove all references to it.
Fix sent to NTP maintainers - they will probably implement this change
after the immenient 4.1.0 release, but don't want to change it so close
to the release date.
the interface tries to negotiate ifid with the other end by using IPv6CP.
other changes:
- do not share ppp sequence number across protocols.
- if LCP proto-rej is received, drop the protocol mentioned by the message.
this is to be friendly with non-IPv6 peer (if the peer complains due to
lack of IPv6CP, drop IPv6CP). this basically implements "RXJ+" state
transition in the RFC.
- cleanup debugging message. always print blank just before message.
CAVEAT:
- if the peer uses the same MAC address as our side (pretty unlikely)
the code may go into req-rej loop.
- even though we negotiate ifid, we don't configure destination address
onto the interface. it is not really necessary to do so (IMHO).
- I've tested this code on a NetBSD 1.4.2 node, which was with fair amount
of modifications. not sure if the committed code does it right... (please
test and send reports)
