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add address type classification function
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@ -139,3 +139,15 @@ func (pc *packetConnWrapper) Write(p []byte) (n int, err error) {
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func (pc *packetConnWrapper) Close() error {
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return pc.Close()
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}
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func GetDestinationSubsetOf(dest net.Destination) (bool, error) {
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if !dest.Address.Family().IsDomain() {
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return false, errNotPacketConn
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}
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switch dest.Address.Domain() {
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case seqPacketMagicAddress:
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return false, nil
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default:
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return false, errNotPacketConn
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}
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}
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