disabling cache; it's not really necessary.

tunnelbroker/funcs_tunprefix.go

@@ -0,0 +1,86 @@
+package tunnelbroker
+
+import (
+	`database/sql/driver`
+	`net/netip`
+)
+
+// MarshalText returns a text representation (as bytes) of a TunPrefix.
+func (t *TunPrefix) MarshalText() (b []byte, err error) {
+
+	if t == nil {
+		return
+	}
+
+	b = []byte(t.ToPrefix().String())
+
+	return
+}
+
+// Scan conforms a TunPrefix to a sql.Scanner. It populates t with val.
+func (t *TunPrefix) Scan(val interface{}) (err error) {
+
+	var pfx netip.Prefix
+	var s string
+
+	if val == nil {
+		return
+	}
+
+	switch v := val.(type) {
+	case string:
+		s = v
+	case []byte:
+		s = string(v)
+	default:
+		err = ErrBadPrefixValue
+		return
+	}
+
+	if pfx, err = netip.ParsePrefix(s); err != nil {
+		return
+	}
+
+	*t = TunPrefix(pfx)
+
+	return
+}
+
+// ToPrefix returns a netip.Prefix from a TunPrefix.
+func (t *TunPrefix) ToPrefix() (pfx *netip.Prefix) {
+
+	if t == nil {
+		return
+	}
+
+	pfx = new(netip.Prefix)
+	*pfx = netip.Prefix(*t)
+
+	return
+}
+
+// UnmarshalText populates a TunPrefix from a text representation.
+func (t *TunPrefix) UnmarshalText(b []byte) (err error) {
+
+	var pfx netip.Prefix
+
+	if b == nil || len(b) == 0 {
+		return
+	}
+
+	if pfx, err = netip.ParsePrefix(string(b)); err != nil {
+		return
+	}
+
+	*t = TunPrefix(pfx)
+
+	return
+}
+
+// Value conforms a TunPrefix to a sql/driver.Valuer interface. It returns val from t.
+func (t TunPrefix) Value() (val driver.Value, err error) {
+
+	val = t.ToPrefix().String()
+
+	return
+}