63 lines
1.2 KiB
Go
63 lines
1.2 KiB
Go
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package krpc
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import (
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"bytes"
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"encoding/binary"
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"net"
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"strconv"
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"github.com/anacrolix/torrent/bencode"
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)
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type NodeAddr struct {
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IP net.IP
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Port int
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}
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// A zero Port is taken to mean no port provided, per BEP 7.
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func (me NodeAddr) String() string {
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if me.Port == 0 {
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return me.IP.String()
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}
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return net.JoinHostPort(me.IP.String(), strconv.FormatInt(int64(me.Port), 10))
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}
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func (me *NodeAddr) UnmarshalBinary(b []byte) error {
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me.IP = make(net.IP, len(b)-2)
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copy(me.IP, b[:len(b)-2])
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me.Port = int(binary.BigEndian.Uint16(b[len(b)-2:]))
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return nil
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}
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func (me *NodeAddr) UnmarshalBencode(b []byte) (err error) {
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var _b []byte
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err = bencode.Unmarshal(b, &_b)
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if err != nil {
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return
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}
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return me.UnmarshalBinary(_b)
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}
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func (me NodeAddr) MarshalBinary() ([]byte, error) {
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var b bytes.Buffer
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b.Write(me.IP)
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binary.Write(&b, binary.BigEndian, uint16(me.Port))
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return b.Bytes(), nil
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}
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func (me NodeAddr) MarshalBencode() ([]byte, error) {
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return bencodeBytesResult(me.MarshalBinary())
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}
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func (me NodeAddr) UDP() *net.UDPAddr {
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return &net.UDPAddr{
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IP: me.IP,
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Port: me.Port,
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}
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}
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func (me *NodeAddr) FromUDPAddr(ua *net.UDPAddr) {
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me.IP = ua.IP
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me.Port = ua.Port
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}
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