In the past, and up until this most recent release of Snort 18.104.22.168, FreeBSD has downloaded its packages from SourceForge's Snort repository.
This is no longer the case.
Starting with this release (22.214.171.124) FreeBSD's port system now retrieves Snort from it's proper home, Snort.org, as we hope all package maintainers for Snort do.
In the future we will be moving all the historical versions off of SourceForge into a more appropriate place as well. As always, we will keep our users updated via this blog of any changes we make to the systems.