oujinliang/erlang_utils — pull request #1 by martinrehfeld (2012-11-30 19:43:37+00:00)
Title: fix is_sitelocal_addr/1 for the 172.x range

The 172.x private range has a 12 bit netmask, thus
covering addresses from 172.16.0.0 to 172.31.255.255.
See http://tools.ietf.org/html/rfc1918 for details.