david f41753c4e9 Add a sockaddr dst argument to send_ip function that use raw sockets. ...

Heretofore we have always extracted teh destination address directly
from the packet contents. But the raw packet bytes do not contain enough
information in one case: IPv6 link-local addresses. For those we really
need the scope ID, and for that we must pass this information all the
way down.

Before this, I got "no route to host" on OS link-local addresses. I
think that it was working on Linux only on accident, by the OS picking a
default interface or something.

2011-09-19 16:13:35 +00:00

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