cloudflared-mirror/vendor/github.com/kshvakov/clickhouse/lib/column/ipv4.go

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package column
import (
"net"
"github.com/kshvakov/clickhouse/lib/binary"
)
type IPv4 struct {
base
}
func (*IPv4) Read(decoder *binary.Decoder) (interface{}, error) {
v, err := decoder.Fixed(4)
if err != nil {
return nil, err
}
return net.IPv4(v[3], v[2], v[1], v[0]), nil
}
func (ip *IPv4) Write(encoder *binary.Encoder, v interface{}) error {
netIP, ok := v.(net.IP)
if !ok {
return &ErrUnexpectedType{
T: v,
Column: ip,
}
}
ip4 := netIP.To4()
if _, err := encoder.Write([]byte{ip4[3], ip4[2], ip4[1], ip4[0]}); err != nil {
return err
}
return nil
}