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mirror of https://github.com/v2fly/v2ray-core.git synced 2024-12-22 18:17:52 -05:00
v2fly/proxy/socks/protocol/socks4.go

40 lines
755 B
Go

package protocol
import (
"errors"
"io"
v2net "github.com/v2ray/v2ray-core/common/net"
)
var (
Socks4Downgrade = errors.New("Downgraded to Socks 4.")
)
type Socks4AuthenticationRequest struct {
Version byte
Command byte
Port v2net.Port
IP [4]byte
}
type Socks4AuthenticationResponse struct {
result byte
port uint16
ip []byte
}
func NewSocks4AuthenticationResponse(result byte, port v2net.Port, ip []byte) *Socks4AuthenticationResponse {
return &Socks4AuthenticationResponse{
result: result,
port: port.Value(),
ip: ip,
}
}
func (r *Socks4AuthenticationResponse) Write(writer io.Writer) {
writer.Write([]byte{
byte(0x00), r.result, byte(r.port >> 8), byte(r.port),
r.ip[0], r.ip[1], r.ip[2], r.ip[3]})
}