K 10
svn:author
V 8
vangyzen
K 8
svn:date
V 27
2017-03-10T20:25:43.642884Z
K 7
svn:log
V 603
MFC r313820

pf: use inet_ntoa_r() instead of inet_ntoa(); maybe fix IPv6 OS fingerprinting

inet_ntoa() cannot be used safely in a multithreaded environment
because it uses a static local buffer. Instead, use inet_ntoa_r()
with a buffer on the caller's stack.

This code had an INET6 conditional before this commit, but opt_inet6.h
was not included, so INET6 was never defined.  Apparently, pf's OS
fingerprinting hasn't worked with IPv6 for quite some time.
This commit might fix it, but I didn't test that.

Relnotes:	yes (if I/someone can test pf OS fingerprinting with IPv6)
Sponsored by:	Dell EMC

END