don't print "legacy options" RND_FLAG_ESTIMATE_TIME and
"RND_FLAG_ESTIMATE_VALUE"
only print "estimate" if we have actually counted any bits from
something, since it's no longer really possible to "enable estimation".
ideally, there should also be a "samples" field so it's clear
collected bits are not being counted.
While here, tweak RTF_GATEWAY description. Passive voice elsewhere in
this table is used to talk about the routes themselves, while here
it's about packets.
count blocks written in unsigned 64 bit counter
rather than signed int which overflows after 2^31-1
blocks (2TiB) after which neither the 5 minute
status updates or SIGINFO (^T) reports are issued
until the negative numbers increase past 0 and
wildly inaccurate reports would be written.
AF_LINK may not be the first address returned for the interface.
Technically, it *might* not even exist on the interface even though
other families do.
This is likely a driver bug if this really is the case though.
As such it's just easier to use direct ioctls rather than thump around
getifaddrs results. As it stands, the code makes a lot of getifaddrs
calls anyway, so an extra ioctl or two won't break the bank.
For AF_LINK addrs from getifaddrs(2), ifa_data is struct if_data.
This in turn holds ifi_link_state which we can use to report
link status if the interface does not support media where it's normally
reported.
Based on OpenBSD.
right now. new address-of-packed-member and format-overflow
warnings have new GCC_NO_ADDR_OF_PACKED_MEMBER amd
GCC_NO_FORMAT_OVERFLOW variables to remove these warnings.
apply to a bunch of the tree. mostly, these are real bugs that
should be fixed, but in many cases, only by removing the 'packed'
attribute from some structure that doesn't really need it. (i
looked at many different ones, and while perhaps 60-80% were
already properly aligned, it wasn't clear to me that the uses
were always coming from sane data vs network alignment, so it
doesn't seem safe to remove packed without careful research for
each affect struct.) clang already warned (and was not erroring)
for many of these cases, but gcc picked up dozens more.
