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db = GeoIP::City.new("GeoLiteCity.dat")
look_up = db.look_up("119.236.232.169")
Gives you a:
[BUG] Segmentation fault
Because region_name is empty for that IP. Those 2 commits fix that bug so that it returns an empty string. There are probably a better fix than returning an empty string but at least it fixes my problem.