Use different package for geoip

honeypot/geolocate.go

@@ -4,23 +4,29 @@ import (
 	_ "embed"
 	"net"
 
-	"github.com/oschwald/geoip2-golang"
+	"github.com/oschwald/maxminddb-golang"
 )
 
 //go:embed Geoacumen-Country.mmdb
 var mmdb []byte
 
 func (s *HoneypotServer) LookupCountry(ip net.IP) string {
-	db, err := geoip2.FromBytes(mmdb)
+	db, err := maxminddb.FromBytes(mmdb)
 	if err != nil {
 		s.Logger.Warnw("Error opening geoip database", "error", err)
 		return "??"
 	}
 
-	country, err := db.Country(ip)
+	var record struct {
+		Country struct {
+			ISOCode string `maxminddb:"iso_code"`
+		} `maxminddb:"country"`
+	}
+
+	err = db.Lookup(ip, &record)
 	if err != nil {
 		s.Logger.Warnw("Error doing geoip lookup", "error", err)
 		return "??"
 	}
-	return country.Country.IsoCode
+	return record.Country.ISOCode
 }